1
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Ku B, Eisenbarth D, Baek S, Jeong TK, Kang JG, Hwang D, Noh MG, Choi C, Choi S, Seol T, Kim H, Kim YH, Woo SM, Kong SY, Lim DS. PRMT1 promotes pancreatic cancer development and resistance to chemotherapy. Cell Rep Med 2024; 5:101461. [PMID: 38460517 PMCID: PMC10983040 DOI: 10.1016/j.xcrm.2024.101461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 12/28/2023] [Accepted: 02/14/2024] [Indexed: 03/11/2024]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) remains one of the most lethal types of cancer, and novel treatment regimens are direly needed. Epigenetic regulation contributes to the development of various cancer types, but its role in the development of and potential as a therapeutic target for PDAC remains underexplored. Here, we show that PRMT1 is highly expressed in murine and human pancreatic cancer and is essential for cancer cell proliferation and tumorigenesis. Deletion of PRMT1 delays pancreatic cancer development in a KRAS-dependent mouse model, and multi-omics analyses reveal that PRMT1 depletion leads to global changes in chromatin accessibility and transcription, resulting in reduced glycolysis and a decrease in tumorigenic capacity. Pharmacological inhibition of PRMT1 in combination with gemcitabine has a synergistic effect on pancreatic tumor growth in vitro and in vivo. Collectively, our findings implicate PRMT1 as a key regulator of pancreatic cancer development and a promising target for combination therapy.
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Affiliation(s)
- Bomin Ku
- National Creative Research Center for Cell Plasticity, KAIST Stem Cell Center, Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea
| | - David Eisenbarth
- National Creative Research Center for Cell Plasticity, KAIST Stem Cell Center, Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea; Brown Center for Immunotherapy, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Seonguk Baek
- National Creative Research Center for Cell Plasticity, KAIST Stem Cell Center, Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea
| | - Tae-Keun Jeong
- National Creative Research Center for Cell Plasticity, KAIST Stem Cell Center, Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea
| | - Ju-Gyeong Kang
- National Creative Research Center for Cell Plasticity, KAIST Stem Cell Center, Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea
| | - Daehee Hwang
- National Creative Research Center for Cell Plasticity, KAIST Stem Cell Center, Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea
| | - Myung-Giun Noh
- Department of Pathology, Chonnam National University Medical School and Hwasun Hospital, Hwasun-gun, Jeonnam 58128, Republic of Korea
| | - Chan Choi
- Department of Pathology, Chonnam National University Medical School and Hwasun Hospital, Hwasun-gun, Jeonnam 58128, Republic of Korea
| | - Sungwoo Choi
- National Creative Research Center for Cell Plasticity, KAIST Stem Cell Center, Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea
| | - Taejun Seol
- National Creative Research Center for Cell Plasticity, KAIST Stem Cell Center, Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea
| | - Hail Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Yun-Hee Kim
- Research Institute, National Cancer Center, Goyang 10408, Republic of Korea
| | - Sang Myung Woo
- Research Institute, National Cancer Center, Goyang 10408, Republic of Korea
| | - Sun-Young Kong
- Targeted Therapy Branch, Division of Rare and Refractory Cancer, Research Institute, National Cancer Center, Goyang 10408, Republic of Korea
| | - Dae-Sik Lim
- National Creative Research Center for Cell Plasticity, KAIST Stem Cell Center, Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea.
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Jeong DJ, Um JH, Kim YY, Shin DJ, Im S, Lee KM, Lee YH, Lim DS, Kim D, Yun J. The Mst1/2-BNIP3 axis is required for mitophagy induction and neuronal viability under mitochondrial stress. Exp Mol Med 2024; 56:674-685. [PMID: 38443598 PMCID: PMC10984967 DOI: 10.1038/s12276-024-01198-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/21/2023] [Accepted: 01/01/2024] [Indexed: 03/07/2024] Open
Abstract
Mitophagy induction upon mitochondrial stress is critical for maintaining mitochondrial homeostasis and cellular function. Here, we found that Mst1/2 (Stk3/4), key regulators of the Hippo pathway, are required for the induction of mitophagy under various mitochondrial stress conditions. Knockdown of Mst1/2 or pharmacological inhibition by XMU-MP-1 treatment led to impaired mitophagy induction upon CCCP and DFP treatment. Mechanistically, Mst1/2 induces mitophagy independently of the PINK1-Parkin pathway and the canonical Hippo pathway. Moreover, our results suggest the essential involvement of BNIP3 in Mst1/2-mediated mitophagy induction upon mitochondrial stress. Notably, Mst1/2 knockdown diminishes mitophagy induction, exacerbates mitochondrial dysfunction, and reduces cellular survival upon neurotoxic stress in both SH-SY5Y cells and Drosophila models. Conversely, Mst1 and Mst2 expression enhances mitophagy induction and cell survival. In addition, AAV-mediated Mst1 expression reduced the loss of TH-positive neurons, ameliorated behavioral deficits, and improved mitochondrial function in an MPTP-induced Parkinson's disease mouse model. Our findings reveal the Mst1/2-BNIP3 regulatory axis as a novel mediator of mitophagy induction under conditions of mitochondrial stress and suggest that Mst1/2 play a pivotal role in maintaining mitochondrial function and neuronal viability in response to neurotoxic treatment.
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Affiliation(s)
- Dae Jin Jeong
- Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea
| | - Jee-Hyun Um
- Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea
| | - Young Yeon Kim
- Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea
| | - Dong Jin Shin
- Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea
| | - Sangwoo Im
- Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea
| | - Kang-Min Lee
- Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea
| | - Yun-Hee Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Dae-Sik Lim
- Department of Biological Sciences, National Creative Research Center for Cell Plasticity, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Donghoon Kim
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea
- Department of Pharmacology, College of Medicine, Dong-A University, Busan, Korea
| | - Jeanho Yun
- Department of Biochemistry, College of Medicine, Dong-A University, Busan, Republic of Korea.
- Department of Translational Biomedical Sciences, Graduate School of Dong-A University, Busan, Republic of Korea.
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Park A, Kim KE, Park I, Lee SH, Park KY, Jung M, Li X, Sleiman MB, Lee SJ, Kim DS, Kim J, Lim DS, Woo EJ, Lee EW, Han BS, Oh KJ, Lee SC, Auwerx J, Mun JY, Rhee HW, Kim WK, Bae KH, Suh JM. Mitochondrial matrix protein LETMD1 maintains thermogenic capacity of brown adipose tissue in male mice. Nat Commun 2023; 14:3746. [PMID: 37353518 PMCID: PMC10290150 DOI: 10.1038/s41467-023-39106-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 05/31/2023] [Indexed: 06/25/2023] Open
Abstract
Brown adipose tissue (BAT) has abundant mitochondria with the unique capability of generating heat via uncoupled respiration. Mitochondrial uncoupling protein 1 (UCP1) is activated in BAT during cold stress and dissipates mitochondrial proton motive force generated by the electron transport chain to generate heat. However, other mitochondrial factors required for brown adipocyte respiration and thermogenesis under cold stress are largely unknown. Here, we show LETM1 domain-containing protein 1 (LETMD1) is a BAT-enriched and cold-induced protein required for cold-stimulated respiration and thermogenesis of BAT. Proximity labeling studies reveal that LETMD1 is a mitochondrial matrix protein. Letmd1 knockout male mice display aberrant BAT mitochondria and fail to carry out adaptive thermogenesis under cold stress. Letmd1 knockout BAT is deficient in oxidative phosphorylation (OXPHOS) complex proteins and has impaired mitochondrial respiration. In addition, BAT-specific Letmd1 deficient mice exhibit phenotypes identical to those observed in Letmd1 knockout mice. Collectively, we demonstrate that the BAT-enriched mitochondrial matrix protein LETMD1 plays a tissue-autonomous role that is essential for BAT mitochondrial function and thermogenesis.
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Affiliation(s)
- Anna Park
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Kwang-Eun Kim
- Graduate School of Medical Science and Engineering, KAIST, Daejeon, 34141, Republic of Korea
- Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Isaac Park
- Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sang Heon Lee
- Graduate School of Medical Science and Engineering, KAIST, Daejeon, 34141, Republic of Korea
| | - Kun-Young Park
- Graduate School of Medical Science and Engineering, KAIST, Daejeon, 34141, Republic of Korea
| | - Minkyo Jung
- Neural Circuit Research Group, Korea Brain Research Institute, Daegu, 41068, Republic of Korea
| | - Xiaoxu Li
- Laboratory of Integrative Systems Physiology, École polytechnique fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Maroun Bou Sleiman
- Laboratory of Integrative Systems Physiology, École polytechnique fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Su Jeong Lee
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34141, Republic of Korea
| | - Dae-Soo Kim
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34141, Republic of Korea
- Digital Biotech Innovation Center, KRIBB, Daejeon, 34141, Republic of Korea
| | - Jaehoon Kim
- Department of Biological Sciences, KAIST, Daejeon, 34141, Republic of Korea
| | - Dae-Sik Lim
- National Creative Research Center for Cell Plasticity, KAIST Stem Cell Center, Department of Biological Sciences, KAIST, Daejeon, 34141, Republic of Korea
| | - Eui-Jeon Woo
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34141, Republic of Korea
- Disease Target Structure Research Center, KRIBB, Daejeon, 34141, Republic of Korea
| | - Eun Woo Lee
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34141, Republic of Korea
| | - Baek Soo Han
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34141, Republic of Korea
- Biodefense Research Center, KRIBB, Daejeon, 34141, Republic of Korea
| | - Kyoung-Jin Oh
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34141, Republic of Korea
| | - Sang Chul Lee
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Johan Auwerx
- Laboratory of Integrative Systems Physiology, École polytechnique fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
| | - Ji Young Mun
- Neural Circuit Research Group, Korea Brain Research Institute, Daegu, 41068, Republic of Korea
| | - Hyun-Woo Rhee
- Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Won Kon Kim
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea.
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, 34141, Republic of Korea.
- School of Medicine, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Kwang-Hee Bae
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea.
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California, Irvine, CA, 92697, USA.
| | - Jae Myoung Suh
- Graduate School of Medical Science and Engineering, KAIST, Daejeon, 34141, Republic of Korea.
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Kim J, Park KY, Choi S, Ko UH, Lim DS, Suh JM, Shin JH. Ceiling culture chip reveals dynamic lipid droplet transport during adipocyte dedifferentiation via actin remodeling. Lab Chip 2022; 22:3920-3932. [PMID: 36097851 DOI: 10.1039/d2lc00428c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Adipocyte dedifferentiation has recently gained attention as a process underpinning adipocyte plasticity; however, a lack of suitable experimental platforms has hampered studies into the underlying mechanisms. Here, we developed a microscope-mountable ceiling culture chip that provides a stable yet tunable culture environment for long-term live-imaging of dedifferentiating adipocytes. A detailed spatiotemporal analysis of mature adipocyte dedifferentiation utilizing the culture platform and Cre-recombinase tracers revealed the involvement of dynamic actin remodeling for lipid droplet (LD) secretion during adipocyte dedifferentiation. Additionally, Hippo, Hedgehog, and PPARγ signaling pathways were identified as potent regulators of adipocyte dedifferentiation. Contrary to the belief that adult adipocytes are relatively static, we show that adipocytes are very dynamic, relying on actin-driven mechanical forces to execute LD extrusion and intercellular LD transfer processes.
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Affiliation(s)
- Jiwon Kim
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
| | - Kun-Young Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Engineering, Daejeon, Republic of Korea.
| | - Sungwoo Choi
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Engineering, Daejeon, Republic of Korea.
| | - Ung Hyun Ko
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
| | - Dae-Sik Lim
- National Creative Research Center for Cell Plasticity, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Jae Myoung Suh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Engineering, Daejeon, Republic of Korea.
| | - Jennifer H Shin
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
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Kim JH, Franchin L, Hong SJ, Cha JJ, Lim S, Joo HJ, Park JH, Yu CW, Ahn TH, Lim DS, Dascenzo F. The long-term cardiac events after coronary bifurcation stenting with second-generation drug-eluting stents in elderly patients are comparable to those of younger patients. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Elderly patients undergoing percutaneous coronary intervention (PCI) generally have a high risk of adverse clinical outcomes. We investigated the long-term clinical impact of PCI on coronary bifurcation disease in elderly patients in Korea and Italy.
Methods
From the BIFURCAT (comBined Insights from the Unified RAIN and COBIS bifurcAtion regisTries) data, we evaluated 5,537 patients who underwent PCI for coronary bifurcation disease. The primary outcome was major adverse cardiac events (MACEs), defined as the composite of target vessel myocardial infarction, target lesion revascularisation, and stent thrombosis. Kaplan–Meier estimates and Cox proportional hazard models were used to compare elderly patients (aged ≥75 years) and younger patients (aged <75 years).
Results
A total of 1,415 patients (26%) were aged ≥75 years. Elderly patients were more frequently female, had higher rates of hypertension and chronic kidney disease (CKD), and presented more frequently with left main (LM) disease. After a median follow-up of 2.1 years, MACEs were comparable between elderly and younger patients. In multivariable analysis, old age was not an independent predictor of MACEs (p=0.977). In elderly patients, CKD and LM disease were independent predictors of MACEs, whereas in younger patients, hypertension, diabetes, CKD, reduced left ventricular ejection fraction, LM disease, and two-stent strategy usage were independent predictors.
Conclusions
Elderly patients who underwent coronary bifurcation PCI with second-generation drug-eluting stents demonstrated similar clinical outcomes to those of younger patients. Both CKD and LM disease were independent predictors of MACEs, regardless of age after coronary bifurcation PCI.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- J H Kim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - L Franchin
- University of Turin, Cardiovascular and Thoracic , Turin , Italy
| | - S J Hong
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - J J Cha
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - S Lim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - H J Joo
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - J H Park
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - C W Yu
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - T H Ahn
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - D S Lim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - F Dascenzo
- University of Turin, Cardiovascular and Thoracic , Turin , Italy
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Lim S, Yu CW, Kim JH, Cha JJ, Kook HD, Joo HJ, Park JH, Choi CU, Hong SJ, Lim DS. The differential effects of antihypertensive drugs on central blood pressure: nebivolol versus telmisartan (ATD-CBP). Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Central blood pressure and central pulse pressure have a better correlation with the risk of cardiovascular disease compared to those of peripheral measurement. In a previous study, a second-generation beta-blocker showed poor CBP-lowering effects. However, the effect on CBP by third-generation beta-blockers is not fully elucidated. Thus, this randomised study investigated whether nebivolol-based hypertension treatment may confer advantages over telmisartan, an angiotensin II receptor-blocker, in reducing CBP.
Methods
This was a prospective, randomised, multicentre, open-label, controlled trial that evaluated 98 hypertensive patients. Patients received either nebivolol- (N=49) or telmisartan-based (N=49) treatment for hypertension for 12 weeks with a target BP of ≤140/80. The primary outcome was the difference in change from baseline central systolic BP (cSBP) after 12 weeks.
Results
There were no significant differences between the two groups in baseline central and peripheral SBP. The mean change in cSBP from baseline (ΔcSBP) was −17.2±3 mmHg for nebivolol group (P<0.001) and −29.9±3 mmHg for telmisartan group (P<0.001). The difference in ΔcSBP between the two groups was significant (12.7mmHg, 95% confidence interval [CI], 4.13 to 21.2; P=0.004). Peripheral SBP (pSBP) decreased less in nebivolol group compared to telmisartan group (−18.0±3 in nebivolol group vs. −26.3±3 in telmisartan group, P=0.032). After adjusting for reduction in pSBP, reduction in cSBP was higher in telmisartan group compared to nebivolol group, as shown by the ratio of changes in cSBP and pSBP (ΔcSBP/ΔpSBP; 0.67 for nebivolol group vs. 1.11 for telmisartan group, P=0.080), albeit without statistical significance.
Conclusions
Nebivolol-based hypertension treatment may have less potent CBP-lowering effects compared to telmisartan. However, larger-scale studies are warranted to further elaborate our findings.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S Lim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - C W Yu
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - J H Kim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - J J Cha
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - H D Kook
- Hanyang university medical center , Seoul , Korea (Republic of)
| | - H J Joo
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - J H Park
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - C U Choi
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - S J Hong
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - D S Lim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
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Bae SA, Cha JJ, Kim SW, Lim S, Kim JH, Joo HJ, Park JH, Park SM, Hong SJ, Yu CW, Lim DS, Jeong MH, Ahn TH. Effect of an early invasive strategy based on time of symptom onset in patients with non-ST elevation myocardial infarction. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
A limitation of the current guidelines of the timing of invasive coronary angiography (ICA) for patients with non-ST-segment elevation (NSTE) acute coronary syndrome is based on randomization time. So far, no study has reported the clinical outcomes of invasive strategy timing based on the time of symptom onset. Herein, we aimed to investigate the effect of invasive strategy timing from the time of symptom onset on the 3-year clinical outcomes of patients with NSTE myocardial infarction (MI).
Methods and results
Among 13,104 patients from the Korea Acute Myocardial Infarction Registry-National Institutes of Health, we evaluated 5,856 patients with NSTEMI. The patients were categorized according to symptom-to-catheter (StC) time (<48 h and ≥48 h). The primary outcome was 3-year all-cause mortality, and the secondary outcome was a 3-year composite of all-cause mortality, recurrent MI, and hospitalization for heart failure. Overall, 3,919 (66.9%) patients were classified into the StC time <48 h group. This group had lower all-cause mortality than the StC time ≥48 h group (7.3% vs. 13.4%, p<0.001). The continuous association of StC time and risk of primary and secondary endpoints showed shorter StC time (reference: 48 h), and lower adjusted hazard ratio reduction was observed. In multivariable analysis, independent predictors of delayed ICA were older age, non-specific symptoms, no use of emergency medical services, no ST-segment deviation, chronic kidney disease, and Global Registry of Acute Coronary Events score >140.
Conclusion
Early invasive strategy based on the StC time improves all-cause mortality in patients with NSTEMI.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S A Bae
- Yongin Severance Hospital, Yonsei University College of Medicine , Yongin , Korea (Republic of)
| | - J J Cha
- Korea University Anam Hospital, Department of Cardiology , Seoul , Korea (Republic of)
| | - S W Kim
- Chung-Ang University Gwangmyeong Hospital, Department of Cardiology , Gwangmyeong , Korea (Republic of)
| | - S Lim
- Korea University Anam Hospital, Department of Cardiology , Seoul , Korea (Republic of)
| | - J H Kim
- Korea University Anam Hospital, Department of Cardiology , Seoul , Korea (Republic of)
| | - H J Joo
- Korea University Anam Hospital, Department of Cardiology , Seoul , Korea (Republic of)
| | - J H Park
- Korea University Anam Hospital, Department of Cardiology , Seoul , Korea (Republic of)
| | - S M Park
- Korea University Anam Hospital, Department of Cardiology , Seoul , Korea (Republic of)
| | - S J Hong
- Korea University Anam Hospital, Department of Cardiology , Seoul , Korea (Republic of)
| | - C W Yu
- Korea University Anam Hospital, Department of Cardiology , Seoul , Korea (Republic of)
| | - D S Lim
- Korea University Anam Hospital, Department of Cardiology , Seoul , Korea (Republic of)
| | - M H Jeong
- Chonnam National University Medical School, Department of Cardiovascular Medicine , Gwangju , Korea (Republic of)
| | - T H Ahn
- Chung-Ang University Gwangmyeong Hospital, Department of Cardiology , Gwangmyeong , Korea (Republic of)
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Cox Z, Zalawadiya S, Simonato M, Redfors B, Zhou Z, Kotinkaduwa L, Zile M, Udelson J, Lim DS, Grayburn PA, Mack MJ, Abraham WT, Stone GW, Lindenfeld J. Maximally tolerated guideline-directed medical therapy and barriers to optimization in patients with heart failure with reduced ejection fraction: the COAPT trial. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The COAPT trial of MitraClip therapy employed a central screening eligibility committee (CSEC) of heart failure (HF) experts to ensure the use of maximally tolerated guideline-directed medical therapy (GDMT) and systematically document intolerances in all potential patients prior to approval for randomization.
Purpose
To describe the percentage of GDMT classes, doses tolerated, predictors of intolerance, and specific intolerances limiting GDMT among patients approved for randomization by the CSEC.
Methods
We analyzed baseline use, dose, and intolerances of i) angiotensin-converting enzyme inhibitors (ACEI), angiotensin II receptor blockers (ARB) or angiotensin receptor neprilysin inhibitor (ARNI); ii) beta-blockers (BB); and iii) mineralocorticoid receptor antagonists (MRA) in the CSEC-approved COAPT population with HF with reduced ejection fraction (HFrEF; LVEF ≤40%). We analyzed variables associated with GDMT tolerance.
Results
In COAPT, 464 patients had HFrEF and complete screening medication information. Any dose of all 3, 2 or 1 GDMT classes were tolerated in 39%, 39% and 20% of patients respectively; only 2% of patients (n=9) could not tolerate any GDMT (Figure 1). BB were prescribed in the most (93%) patients followed by ACEI/ARB/ARNI (69%) and MRA (55%). Intolerances limiting each GDMT class differed, but hypotension and kidney dysfunction were most common (Figure 2). No patients tolerated goal doses of all 3 GDMT classes. For BB, only 32% tolerated ≥50% of the goal dose; while for ACEI/ARB/ARNI, no patients achieved goal doses, and only 1% tolerated ≥50% of the goal dose. For MRA, 86% of patients tolerated 25mg/day or less. Patients intolerant of BB were less likely to tolerate an ACEI/ARB/ARNI (OR 0.39, 95% CI 0.20–0.76; p=0.004) but not a MRA (p=0.21) compared with patients tolerating a low dose BB. Patients intolerant of MRA were less likely to tolerate ACEI/ARB/ARNI therapy (OR 0.37, 95% CI 0.25–0.57; p<0.0001) but not a BB (p=0.31) compared with patients tolerating MRA. Patients tolerating low dose ACEI/ARB/ARNI had a higher baseline mean eGFR (52±21 versus 40±21 ml/min/m2; p<0.0001) compared with patients intolerant of ACEI/ARB/ARNI. Likewise, patients tolerating MRA had a higher baseline mean eGFR (52±21 versus 42±21 ml/min/m2; p<0.0001) compared with patients intolerant of MRA.
Conclusion
In a contemporary trial in which HF specialists ensured GDMT optimization, many patients had medical intolerances prohibiting use of one or more GDMT classes, and few patients tolerated target doses. These findings indicate medical intolerances are the primary cause of low GDMT prescription rates in patients with moderate to severe HFrEF. Yet, use of GDMT in this very ill population was much better than “real world” registries of HFrEF suggesting that mandating careful CSEC review prior to study enrollment is important for clinical trials having the objective of randomizing a maximally treated patient cohort.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Z Cox
- Lipscomb University College of Pharmacy , Nashville , United States of America
| | - S Zalawadiya
- Vanderbilt University Medical Center , Nashville , United States of America
| | - M Simonato
- Cardiovascular Research Foundation , New York , United States of America
| | - B Redfors
- Cardiovascular Research Foundation , New York , United States of America
| | - Z Zhou
- Cardiovascular Research Foundation , New York , United States of America
| | - L Kotinkaduwa
- Cardiovascular Research Foundation , New York , United States of America
| | - M Zile
- Ralph H. Johnson Department of Veteran's Affairs Medical Center , Charleston , United States of America
| | - J Udelson
- Tufts Medical Center, Inc. , Boston , United States of America
| | - D S Lim
- University of Virginia , Charlottesville , United States of America
| | - P A Grayburn
- Baylor University Medical Center , Dallas , United States of America
| | - M J Mack
- Baylor Scott and White The Heart Hospital , Plano , United States of America
| | - W T Abraham
- The Ohio State University , Columbus , United States of America
| | - G W Stone
- The Zena and Michael A. Wiener Cardiovascular Institute , New York , United States of America
| | - J Lindenfeld
- Vanderbilt University Medical Center , Nashville , United States of America
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9
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Jeon HY, Choi J, Kraaier L, Kim YH, Eisenbarth D, Yi K, Kang JG, Kim JW, Shim HS, Lee JH, Lim DS. Airway secretory cell fate conversion via YAP-mTORC1-dependent essential amino acid metabolism. EMBO J 2022; 41:e109365. [PMID: 35285539 PMCID: PMC9016350 DOI: 10.15252/embj.2021109365] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 02/17/2022] [Accepted: 02/17/2022] [Indexed: 12/24/2022] Open
Abstract
Tissue homeostasis requires lineage fidelity of stem cells. Dysregulation of cell fate specification and differentiation leads to various diseases, yet the cellular and molecular mechanisms governing these processes remain elusive. We demonstrate that YAP/TAZ activation reprograms airway secretory cells, which subsequently lose their cellular identity and acquire squamous alveolar type 1 (AT1) fate in the lung. This cell fate conversion is mediated via distinctive transitional cell states of damage-associated transient progenitors (DATPs), recently shown to emerge during injury repair in mouse and human lungs. We further describe a YAP/TAZ signaling cascade to be integral for the fate conversion of secretory cells into AT1 fate, by modulating mTORC1/ATF4-mediated amino acid metabolism in vivo. Importantly, we observed aberrant activation of the YAP/TAZ-mTORC1-ATF4 axis in the altered airway epithelium of bronchiolitis obliterans syndrome, including substantial emergence of DATPs and AT1 cells with severe pulmonary fibrosis. Genetic and pharmacologic inhibition of mTORC1 activity suppresses lineage alteration and subepithelial fibrosis driven by YAP/TAZ activation, proposing a potential therapeutic target for human fibrotic lung diseases.
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Affiliation(s)
- Hae Yon Jeon
- Department of Biological Sciences, National Creative Research Center for Cell Plasticity, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Jinwook Choi
- Jeffrey Cheah Biomedical Centre, Wellcome - MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Lianne Kraaier
- Jeffrey Cheah Biomedical Centre, Wellcome - MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK.,Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Young Hoon Kim
- Department of Biological Sciences, National Creative Research Center for Cell Plasticity, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - David Eisenbarth
- Department of Biological Sciences, National Creative Research Center for Cell Plasticity, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Kijong Yi
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea.,GenomeInsight Inc., Daejeon, South Korea
| | - Ju-Gyeong Kang
- Department of Biological Sciences, National Creative Research Center for Cell Plasticity, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Jin Woo Kim
- Department of Biological Sciences, National Creative Research Center for Cell Plasticity, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Hyo Sup Shim
- Department of Pathology, Yonsei University College of Medicine, Seoul, South Korea
| | - Joo-Hyeon Lee
- Jeffrey Cheah Biomedical Centre, Wellcome - MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK.,Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - Dae-Sik Lim
- Department of Biological Sciences, National Creative Research Center for Cell Plasticity, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
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10
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Vincent F, Redfors B, Kotinkaduwa LN, Kar S, Lim DS, Mishell JM, Whisenant BK, Lindenfeld J, Abraham WT, Mack MJ, Stone GW. Cerebrovascular events after transcatheter mitral valve repair or guideline-directed medical therapy in patients with mitral regurgitation and heart failure in the COAPT trial. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Our knowledge regarding the risk of cerebrovascular events (CVE) in patients with heart failure (HF) and severe secondary mitral regurgitation (SMR) treated by transcatheter mitral valve repair (TMVr) is limited.
Purpose
To examine the incidence, predictors, timing, and prognostic impact of CVE in patients with heart failure and SMR treated with TMVr vs guideline-directed medical therapy (GDMT) alone.
Methods
In the COAPT trial, 614 patients with HF with moderate-to-severe or severe SMR were randomized to TMVr with the MitraClip + GDMT vs GDMT alone. After 2 years, patients who were randomized to GDMT alone could crossover and undergo TMVr. CVE (defined as stroke or TIA) were adjudicated by an independent clinical events committee.
Results
A total of 43 CVE occurred in 42 patients within 3-year follow-up (34 strokes and 9 TIAs; 1 patient had both). CVE occurred in 10.0% (n=20) of patients randomized to TMVR and 11.3% (n=22) of patients randomized to GDMT alone (p=0.53) (Figure). Of the 22 CVE in the GDMT alone group, 3 occurred after the patient had crossed over to TMVr. The incidence rates in the TMVr and GDMT groups were similar within the first 3 months (incidence rate ratio [IRR] 0.78, 95% CI 0.17–3.48, p=0.74) and between 3 months and 3 years (IRR 0.83, 95% CI 0.43–1.60, p=0.58) after randomization. After multivariable adjustment, baseline estimated glomerular filtration rate (eGFR) was associated with CVE in the overall population (HR per 5 ml/min increase in eGFR 0.91, 95% CI 0.84–0.99, p=0.03). Peripheral vascular disease was associated with CVE in patients treated by GDMT (HR=3.21, 95% CI [1.35, 7.67]) but not TMVr (HR 0.53 95% CI 0.12–2.24; p-interaction=0.04). In contrast, baseline chronic oral anticoagulation use was associated with a reduced risk of CVE in patients in the TMVr group (HR 0.18, 95% CI 0.05–0.63) but not in the GDMT alone group (HR 1.66, 95% CI 0.70–3.94; p-interaction=0.004). In a time-adjusted multivariable analysis, CVE was associated with a higher risk of death (HR 2.51, 95% CI 1.54–4.08; p=0.0002), a risk that was marked in the first 30 days after the event (HR 14.21, 95% CI 7.30–27.97, p<0.0001), and declined thereafter (HR 1.37, 95% CI 0.72–2.59, p=0.34).
Conclusions
In patients with HF and severe SMR, CVE at 3 years was not infrequent, increased linearly over time, was similar after treatment with the MitraClip and GDMT alone, and was associated with a marked increase in all-cause death. Whether anticoagulation is especially effective at preventing CVE in patients treated by TMVr, as suggested by this report, warrants further study.
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): Abbott Figure 1
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Affiliation(s)
- F Vincent
- Cardiovascular Research Foundation, New York, United States of America
| | - B Redfors
- Cardiovascular Research Foundation, New York, United States of America
| | - L N Kotinkaduwa
- Cardiovascular Research Foundation, New York, United States of America
| | - S Kar
- Los Robles Regional Medical Center, Thousand Oaks, United States of America
| | - D S Lim
- University of Virginia, Charlottesville, United States of America
| | - J M Mishell
- Kaiser Permanente, San Francisco Medical Center, San Francisco, United States of America
| | - B K Whisenant
- Intermountain Medical Center, Salt Lake City, United States of America
| | - J Lindenfeld
- Vanderbilt University Medical Center, Nashville, United States of America
| | - W T Abraham
- The Ohio State University, Columbus, United States of America
| | - M J Mack
- Baylor Scott and White The Heart Hospital, Plano, United States of America
| | - G W Stone
- Mount Sinai School of Medicine, New York, United States of America
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11
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Hwang D, Kim M, Kim S, Kwon MR, Kang YS, Kim D, Kang HC, Lim DS. AMOTL2 mono-ubiquitination by WWP1 promotes contact inhibition by facilitating LATS activation. Life Sci Alliance 2021; 4:4/10/e202000953. [PMID: 34404733 PMCID: PMC8372784 DOI: 10.26508/lsa.202000953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 08/06/2021] [Accepted: 08/06/2021] [Indexed: 11/24/2022] Open
Abstract
This work reveals a novel function of WWP1 E3 ligase in the mono-ubiquitination of AMOTL2, which enables the binding and activation of LATS kinases upon contact inhibition. Contact inhibition is a key cellular phenomenon that prevents cells from hyper-proliferating upon reaching confluence. Although not fully characterized, a critical driver of this process is the Hippo signaling pathway, whose downstream effector yes-associated protein plays pivotal roles in cell growth and differentiation. Here, we provide evidence that the E3 ligase WWP1 (WW-domain containing protein 1) mono-ubiquitinates AMOTL2 (angiomotin-like 2) at K347 and K408. Mono-ubiquitinated AMOTL2, in turn, interacts with the kinase LATS2, which facilitates recruitment of the upstream Hippo pathway component SAV1 and ultimately promotes yes-associated protein phosphorylation and subsequent cytoplasmic sequestration and/or degradation. Furthermore, contact inhibition induced by high cell density promoted the localization and stabilization of WWP1 at cell junctions, where it interacted with Crumbs polarity proteins. Notably, the Crumbs complex was functionally important for AMOTL2 mono-ubiquitination and LATS activation under high cell density conditions. These findings delineate a functionally important molecular mechanism in which AMOTL2 mono-ubiquitination by WWP1 at cell junctions and LATS activation are tightly coupled to upstream cell density cues.
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Affiliation(s)
- Daehee Hwang
- National Creative Research Center for Cell Plasticity, Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Miju Kim
- National Creative Research Center for Cell Plasticity, Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Soyeon Kim
- Genomic Instability Research Center, Ajou University School of Medicine, Suwon, Korea
| | - Mi Ra Kwon
- Genomic Instability Research Center, Ajou University School of Medicine, Suwon, Korea
| | - Ye-Seul Kang
- National Creative Research Center for Cell Plasticity, Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Dahyun Kim
- National Creative Research Center for Cell Plasticity, Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Ho-Chul Kang
- Genomic Instability Research Center, Ajou University School of Medicine, Suwon, Korea
| | - Dae-Sik Lim
- National Creative Research Center for Cell Plasticity, Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, Korea
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12
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Yuan T, Annamalai K, Naik S, Lupse B, Geravandi S, Pal A, Dobrowolski A, Ghawali J, Ruhlandt M, Gorrepati KDD, Azizi Z, Lim DS, Maedler K, Ardestani A. The Hippo kinase LATS2 impairs pancreatic β-cell survival in diabetes through the mTORC1-autophagy axis. Nat Commun 2021; 12:4928. [PMID: 34389720 PMCID: PMC8363615 DOI: 10.1038/s41467-021-25145-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/20/2021] [Indexed: 02/07/2023] Open
Abstract
Diabetes results from a decline in functional pancreatic β-cells, but the molecular mechanisms underlying the pathological β-cell failure are poorly understood. Here we report that large-tumor suppressor 2 (LATS2), a core component of the Hippo signaling pathway, is activated under diabetic conditions and induces β-cell apoptosis and impaired function. LATS2 deficiency in β-cells and primary isolated human islets as well as β-cell specific LATS2 ablation in mice improves β-cell viability, insulin secretion and β-cell mass and ameliorates diabetes development. LATS2 activates mechanistic target of rapamycin complex 1 (mTORC1), a physiological suppressor of autophagy, in β-cells and genetic and pharmacological inhibition of mTORC1 counteracts the pro-apoptotic action of activated LATS2. We further show a direct interplay between Hippo and autophagy, in which LATS2 is an autophagy substrate. On the other hand, LATS2 regulates β-cell apoptosis triggered by impaired autophagy suggesting an existence of a stress-sensitive multicomponent cellular loop coordinating β-cell compensation and survival. Our data reveal an important role for LATS2 in pancreatic β-cell turnover and suggest LATS2 as a potential therapeutic target to improve pancreatic β-cell survival and function in diabetes.
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Affiliation(s)
- Ting Yuan
- Centre for Biomolecular Interactions Bremen, University of Bremen, Bremen, Germany
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Frankfurt, Germany
| | - Karthika Annamalai
- Centre for Biomolecular Interactions Bremen, University of Bremen, Bremen, Germany
| | - Shruti Naik
- Centre for Biomolecular Interactions Bremen, University of Bremen, Bremen, Germany
| | - Blaz Lupse
- Centre for Biomolecular Interactions Bremen, University of Bremen, Bremen, Germany
| | - Shirin Geravandi
- Centre for Biomolecular Interactions Bremen, University of Bremen, Bremen, Germany
| | - Anasua Pal
- Centre for Biomolecular Interactions Bremen, University of Bremen, Bremen, Germany
| | | | - Jaee Ghawali
- Centre for Biomolecular Interactions Bremen, University of Bremen, Bremen, Germany
| | - Marina Ruhlandt
- Centre for Biomolecular Interactions Bremen, University of Bremen, Bremen, Germany
| | | | - Zahra Azizi
- Centre for Biomolecular Interactions Bremen, University of Bremen, Bremen, Germany
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Dae-Sik Lim
- Department of Biological Sciences, KAIST 291 Daehak-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Kathrin Maedler
- Centre for Biomolecular Interactions Bremen, University of Bremen, Bremen, Germany.
| | - Amin Ardestani
- Centre for Biomolecular Interactions Bremen, University of Bremen, Bremen, Germany.
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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13
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Roh KH, Lee Y, Yoon JH, Lee D, Kim E, Park E, Lee IY, Kim TS, Song HK, Shin J, Lim DS, Choi EJ. TRAF6-mediated ubiquitination of MST1/STK4 attenuates the TLR4-NF-κB signaling pathway in macrophages. Cell Mol Life Sci 2021; 78:2315-2328. [PMID: 32975614 DOI: 10.1007/s00018-020-03650-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/24/2020] [Accepted: 09/15/2020] [Indexed: 12/27/2022]
Abstract
Pattern-recognition receptors including Toll-like receptors (TLRs) recognize invading pathogens and trigger an immune response in mammals. Here we show that mammalian ste20-like kinase 1/serine/threonine kinase 4 (MST1/STK4) functions as a negative regulator of lipopolysaccharide (LPS)-induced activation of the TLR4-NF-κB signaling pathway associated with inflammation. Myeloid-specific genetic ablation of MST1/STK4 increased the susceptibility of mice to LPS-induced septic shock. Ablation of MST1/STK4 also enhanced NF-κB activation triggered by LPS in bone marrow-derived macrophages (BMDMs), leading to increased production of proinflammatory cytokines by these cells. Furthermore, MST1/STK4 inhibited TRAF6 autoubiquitination as well as TRAF6-mediated downstream signaling induced by LPS. In addition, we found that TRAF6 mediates the LPS-induced activation of MST1/STK4 by catalyzing its ubiquitination, resulting in negative feedback regulation by MST1/STK4 of the LPS-induced pathway leading to cytokine production in macrophages. Together, our findings suggest that MST1/STK4 functions as a negative modulator of the LPS-induced NF-κB signaling pathway during macrophage activation.
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Affiliation(s)
- Kyung-Hye Roh
- Department of Life Sciences, Korea University, Seoul, 02841, Korea
| | - Yeojin Lee
- Department of Life Sciences, Korea University, Seoul, 02841, Korea
| | - Je-Hyun Yoon
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Danbi Lee
- Department of Life Sciences, Korea University, Seoul, 02841, Korea
| | - Eunju Kim
- Department of Life Sciences, Korea University, Seoul, 02841, Korea
| | - Eunchong Park
- Department of Life Sciences, Korea University, Seoul, 02841, Korea
| | - In Young Lee
- Department of Life Sciences, Korea University, Seoul, 02841, Korea
| | - Tae Sung Kim
- Department of Life Sciences, Korea University, Seoul, 02841, Korea
| | - Hyun Kyu Song
- Department of Life Sciences, Korea University, Seoul, 02841, Korea
| | - Jaekyoon Shin
- Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon, 16419, Korea
| | - Dae-Sik Lim
- Department of Biological Sciences, National Creative Research Initiatives Center, Biomedical Research Center, Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Korea
| | - Eui-Ju Choi
- Department of Life Sciences, Korea University, Seoul, 02841, Korea.
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14
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Park J, Eisenbarth D, Choi W, Kim H, Choi C, Lee D, Lim DS. YAP and AP-1 Cooperate to Initiate Pancreatic Cancer Development from Ductal Cells in Mice. Cancer Res 2020; 80:4768-4779. [PMID: 32900774 DOI: 10.1158/0008-5472.can-20-0907] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/22/2020] [Accepted: 08/27/2020] [Indexed: 11/16/2022]
Abstract
The development of pancreatic cancer is heavily dependent upon the aberrant activation of KRAS signaling. Among the downstream targets of KRAS, the effectors of the Hippo pathway YAP and TAZ (YAP/TAZ) are crucial during cancer initiation and progression. However, little is known about the cell type-specific effects of YAP/TAZ on the development of pancreatic cancer. Here we clarify the unique consequences of YAP/TAZ activation in the ductal cell population of the pancreas by generating mice with pancreatic duct cell-specific, inducible knockouts of Lats1 and Lats2, the main kinases upstream of YAP/TAZ. Oncogenic activation of YAP by deletion of Lats1/2 in ductal cells led to the rapid transformation of the pancreas, which was accompanied by a robust increase in the expression of YAP and AP-1 target genes. Pharmacologic inhibition of AP-1 activity induced death in Lats1/2 knockout organoids and attenuated YAP-dependent transformation of the pancreas in vivo. Both YAP and AP-1 were activated during the development of KRAS-dependent cancer in mice and human patients with pancreatic ductal adenocarcinoma, suggesting that this signaling hub represents an important mediator of pancreatic cancer development and progression. Collectively, these data define a YAP-dependent mechanism of pancreatic cancer cell development and suggest that inhibition of AP-1 can suppress this development. SIGNIFICANCE: A pancreatic ductal cell-specific knockout mouse model featuring constitutively active YAP allows for the study of YAP-dependent transformation of the pancreas and for screening pharmacologically active inhibitors.
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Affiliation(s)
- Jaeoh Park
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - David Eisenbarth
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Wonyoung Choi
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Hail Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Chan Choi
- Department of Pathology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Jeonnam, Republic of Korea
| | - Dahye Lee
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Dae-Sik Lim
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
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15
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Jeong SH, Lim DS. Abstract IA09: The crosstalk between Hippo-YAP/TAZ and PTEN-AKT signaling in liver metabolic dysregulation and tumorigenesis. Mol Cancer Res 2020. [DOI: 10.1158/1557-3125.hippo19-ia09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Several in vitro studies have suggested that Hippo-YAP/TAZ signaling regulates the AKT pathway components PI3K and PTEN. Increased YAP expression in human liver tumors is associated with high levels of phosphorylated AKT. This suggests that crosstalk between the Hippo and AKT pathways may be important in the maintenance of functional liver homeostasis. The nature of such crosstalk has thus far remained unclear. Here, we investigated the possible role of crosstalk between Hippo-YAP/TAZ and PTEN-AKT pathways in the liver. Deletion of both Pten and Sav1 in the liver (DKO) accelerates the development of nonalcoholic fatty liver disease (NAFLD) and liver cancer in mice through excessive activation of AKT. At the molecular level, activation of YAP and TAZ amplifies AKT signaling through direct upregulation of IRS2 expression. Deletion of YAP/TAZ or activation of Hippo attenuated development of fatty liver in these DKO mice by downregulating IRS2. Notably, increased YAP/TAZ expression was also associated with high level of IRS2-pAKT in the patient. Moreover, treatment with the AKT inhibitor MK-2206 attenuated NAFLD development and tumorigenesis in DKO mice. Our findings suggest that crosstalk between Hippo and AKT pathways at the level of YAP/TAZ-IRS2 contributes to the development and progression of NAFLD to liver cancer, and they therefore provide a basis for the development of new therapeutic interventions.
Citation Format: Sun-Hye Jeong, Dae-Sik Lim. The crosstalk between Hippo-YAP/TAZ and PTEN-AKT signaling in liver metabolic dysregulation and tumorigenesis [abstract]. In: Proceedings of the AACR Special Conference on the Hippo Pathway: Signaling, Cancer, and Beyond; 2019 May 8-11; San Diego, CA. Philadelphia (PA): AACR; Mol Cancer Res 2020;18(8_Suppl):Abstract nr IA09.
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Affiliation(s)
- Sun-Hye Jeong
- Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Dae-Sik Lim
- Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
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16
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Park J, Kim JS, Nahm JH, Kim SK, Lee DH, Lim DS. WWC1 and NF2 Prevent the Development of Intrahepatic Cholangiocarcinoma by Regulating YAP/TAZ Activity through LATS in Mice. Mol Cells 2020; 43:491-499. [PMID: 32451369 PMCID: PMC7264477 DOI: 10.14348/molcells.2020.0093] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 04/13/2020] [Indexed: 02/06/2023] Open
Abstract
Hippo signaling acts as a tumor suppressor pathway by inhibiting the proliferation of adult stem cells and progenitor cells in various organs. Liver-specific deletion of Hippo pathway components in mice induces liver cancer development through activation of the transcriptional coactivators, YAP and TAZ, which exhibit nuclear enrichment and are activated in numerous types of cancer. The upstream-most regulators of Warts, the Drosophila ortholog of mammalian LATS1/2, are Kibra, Expanded, and Merlin. However, the roles of the corresponding mammalian orthologs, WWC1, FRMD6 and NF2, in the regulation of LATS1/2 activity and liver tumorigenesis in vivo are not fully understood. Here, we show that deletion of both Wwc1 and Nf2 in the liver accelerates intrahepatic cholangiocarcinoma (iCCA) development through activation of YAP/TAZ. Additionally, biliary epithelial cell-specific deletion of both Lats1 and Lats2 using a Sox9-CreERT2 system resulted in iCCA development through hyperactivation of YAP/TAZ. These findings suggest that WWC1 and NF2 cooperate to promote suppression of cholangiocarcinoma development by inhibiting the oncogenic activity of YAP/TAZ via LATS1/2.
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Affiliation(s)
- Jaeoh Park
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 344, Korea
| | - Jeong Sik Kim
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 344, Korea
| | - Ji Hae Nahm
- Department of Pathology, Yonsei University College of Medicine, Gangnam Severance Hospital, Seoul 0673, Korea
- Department of Pathology, Yonsei University College of Medicine, Severance Hospital Seoul, Seoul 0722, Korea
| | - Sang-Kyum Kim
- Department of Pathology, Yonsei University College of Medicine, Severance Hospital Seoul, Seoul 0722, Korea
| | - Da-Hye Lee
- Center for Bioanalysis, Korea Research Institute for Standards and Science, Daejeon 3113, Korea
| | - Dae-Sik Lim
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 344, Korea
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17
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Tran THY, Yang DW, Kim M, Lee DH, Gai M, Di Cunto F, Choi KW, Lim DS. Citron kinase interacts with LATS2 and inhibits its activity by occluding its hydrophobic phosphorylation motif. J Mol Cell Biol 2019; 11:1006-1017. [PMID: 30865227 PMCID: PMC6927243 DOI: 10.1093/jmcb/mjz013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 12/24/2018] [Accepted: 03/04/2019] [Indexed: 01/31/2023] Open
Abstract
The inhibitory effect of large tumor suppressor kinase (LATS1/2) on the activity of the oncoprotein yes-associated protein (YAP) is crucial to maintain tissue homeostasis. Proteomic studies have identified several new regulators of this process. Recently, citron kinase (CIT) was listed as a potential binding candidate of Hippo-related components, suggesting a new connection between CIT and the Hippo pathway. Aside from CIT’s role in cytokinesis, the molecular crosstalk between CIT and the Hippo pathway is largely unknown. Here, we demonstrate a role for CIT as a scaffold protein linking LATS2 and YAP. More importantly, CIT interacts with LATS2 to directly suppress LATS2 phosphorylation at the hydrophobic motif—targeted by MST1, leading to LATS2 inactivation and YAP activation. By studying their genetic interactions, we found that Sticky, the CIT homolog in Drosophila melanogaster, functions with Warts to control Drosophila eye development. Together, our study confirms citron kinase as a novel regulator of the Hippo pathway.
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Affiliation(s)
- Thi Hai Yen Tran
- Department of Biological Sciences, KAIST 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Dae-Wook Yang
- Department of Biological Sciences, KAIST 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Minchul Kim
- Department of Biological Sciences, KAIST 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Da-Hye Lee
- Department of Biological Sciences, KAIST 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Marta Gai
- Department of Molecular Biotechnology and Health Sciences, University of Turin, 10126 Turin, Italy
| | - Ferdinando Di Cunto
- Department of Molecular Biotechnology and Health Sciences, University of Turin, 10126 Turin, Italy
| | - Kwang-Wook Choi
- Department of Biological Sciences, KAIST 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Dae-Sik Lim
- Department of Biological Sciences, KAIST 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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18
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Tang F, Gao R, Jeevan-Raj B, Wyss CB, Kalathur RKR, Piscuoglio S, Ng CKY, Hindupur SK, Nuciforo S, Dazert E, Bock T, Song S, Buechel D, Morini MF, Hergovich A, Matthias P, Lim DS, Terracciano LM, Heim MH, Hall MN, Christofori G. LATS1 but not LATS2 represses autophagy by a kinase-independent scaffold function. Nat Commun 2019; 10:5755. [PMID: 31848340 PMCID: PMC6917744 DOI: 10.1038/s41467-019-13591-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 11/14/2019] [Indexed: 12/27/2022] Open
Abstract
Autophagy perturbation represents an emerging therapeutic strategy in cancer. Although LATS1 and LATS2 kinases, core components of the mammalian Hippo pathway, have been shown to exert tumor suppressive activities, here we report a pro-survival role of LATS1 but not LATS2 in hepatocellular carcinoma (HCC) cells. Specifically, LATS1 restricts lethal autophagy in HCC cells induced by sorafenib, the standard of care for advanced HCC patients. Notably, autophagy regulation by LATS1 is independent of its kinase activity. Instead, LATS1 stabilizes the autophagy core-machinery component Beclin-1 by promoting K27-linked ubiquitination at lysine residues K32 and K263 on Beclin-1. Consequently, ubiquitination of Beclin-1 negatively regulates autophagy by promoting inactive dimer formation of Beclin-1. Our study highlights a functional diversity between LATS1 and LATS2, and uncovers a scaffolding role of LATS1 in mediating a cross-talk between the Hippo signaling pathway and autophagy.
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Affiliation(s)
- Fengyuan Tang
- Department of Biomedicine, University of Basel, Basel, Switzerland.
| | - Ruize Gao
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Beena Jeevan-Raj
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Christof B Wyss
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | | | | | - Charlotte K Y Ng
- Institute of Pathology, University Hospital Basel, Basel, Switzerland
| | | | - Sandro Nuciforo
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Eva Dazert
- Biozentrum, University of Basel, Basel, Switzerland
| | - Thomas Bock
- Biozentrum, University of Basel, Basel, Switzerland
| | - Shuang Song
- Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland
| | - David Buechel
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Marco F Morini
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | | | - Patrick Matthias
- Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland
| | - Dae-Sik Lim
- Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | | | - Markus H Heim
- Department of Biomedicine, University of Basel, Basel, Switzerland
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19
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Koo JH, Plouffe SW, Meng Z, Lee DH, Yang D, Lim DS, Wang CY, Guan KL. Induction of AP-1 by YAP/TAZ contributes to cell proliferation and organ growth. Genes Dev 2019; 34:72-86. [PMID: 31831627 PMCID: PMC6938666 DOI: 10.1101/gad.331546.119] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/12/2019] [Indexed: 12/21/2022]
Abstract
Yes-associated protein (YAP) and its homolog transcriptional coactivator with PDZ-binding motif (TAZ) are key effectors of the Hippo pathway to control cell growth and organ size, of which dysregulation yields to tumorigenesis or hypertrophy. Upon activation, YAP/TAZ translocate into the nucleus and bind to TEAD transcription factors to promote transcriptional programs for proliferation or cell specification. Immediate early genes, represented by AP-1 complex, are rapidly induced and control later-phase transcriptional program to play key roles in tumorigenesis and organ maintenance. Here, we report that YAP/TAZ directly promote FOS transcription that in turn contributes to the biological function of YAP/TAZ. YAP/TAZ bind to the promoter region of FOS to stimulate its transcription. Deletion of YAP/TAZ blocks the induction of immediate early genes in response to mitogenic stimuli. FOS induction contributes to expression of YAP/TAZ downstream target genes. Genetic deletion or chemical inhibition of AP-1 suppresses growth of YAP-driven cancer cells, such as Lats1/2-deficient cancer cells as well as Gαq/11 mutated uveal melanoma. Furthermore, AP-1 inhibition almost completely abrogates the hepatomegaly induced by YAP overexpression. Our findings reveal a feed-forward interplay between immediate early transcription of AP-1 and Hippo pathway function.
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Affiliation(s)
- Ja Hyun Koo
- Department of Pharmacology, Moores Cancer Center, University of California at San Diego, La Jolla, California 92093, USA
| | - Steven W Plouffe
- Department of Pharmacology, Moores Cancer Center, University of California at San Diego, La Jolla, California 92093, USA
| | - Zhipeng Meng
- Department of Pharmacology, Moores Cancer Center, University of California at San Diego, La Jolla, California 92093, USA
| | - Da-Hye Lee
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Science, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Di Yang
- Department of Pharmacology, Moores Cancer Center, University of California at San Diego, La Jolla, California 92093, USA
| | - Dae-Sik Lim
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Science, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Cun-Yu Wang
- Division of Oral Biology and Medicine, University of California at Los Angeles, Los Angeles, California 90095, USA
| | - Kun-Liang Guan
- Department of Pharmacology, Moores Cancer Center, University of California at San Diego, La Jolla, California 92093, USA
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20
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Ikeda S, Mizushima W, Sciarretta S, Abdellatif M, Zhai P, Mukai R, Fefelova N, Oka SI, Nakamura M, Del Re DP, Farrance I, Park JY, Tian B, Xie LH, Kumar M, Hsu CP, Sadayappan S, Shimokawa H, Lim DS, Sadoshima J. Hippo Deficiency Leads to Cardiac Dysfunction Accompanied by Cardiomyocyte Dedifferentiation During Pressure Overload. Circ Res 2019; 124:292-305. [PMID: 30582455 DOI: 10.1161/circresaha.118.314048] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
RATIONALE The Hippo pathway plays an important role in determining organ size through regulation of cell proliferation and apoptosis. Hippo inactivation and consequent activation of YAP (Yes-associated protein), a transcription cofactor, have been proposed as a strategy to promote myocardial regeneration after myocardial infarction. However, the long-term effects of Hippo deficiency on cardiac function under stress remain unknown. OBJECTIVE We investigated the long-term effect of Hippo deficiency on cardiac function in the presence of pressure overload (PO). METHODS AND RESULTS We used mice with cardiac-specific homozygous knockout of WW45 (WW45cKO), in which activation of Mst1 (Mammalian sterile 20-like 1) and Lats2 (large tumor suppressor kinase 2), the upstream kinases of the Hippo pathway, is effectively suppressed because of the absence of the scaffolding protein. We used male mice at 3 to 4 month of age in all animal experiments. We subjected WW45cKO mice to transverse aortic constriction for up to 12 weeks. WW45cKO mice exhibited higher levels of nuclear YAP in cardiomyocytes during PO. Unexpectedly, the progression of cardiac dysfunction induced by PO was exacerbated in WW45cKO mice, despite decreased apoptosis and activated cardiomyocyte cell cycle reentry. WW45cKO mice exhibited cardiomyocyte sarcomere disarray and upregulation of TEAD1 (transcriptional enhancer factor) target genes involved in cardiomyocyte dedifferentiation during PO. Genetic and pharmacological inactivation of the YAP-TEAD1 pathway reduced the PO-induced cardiac dysfunction in WW45cKO mice and attenuated cardiomyocyte dedifferentiation. Furthermore, the YAP-TEAD1 pathway upregulated OSM (oncostatin M) and OSM receptors, which played an essential role in mediating cardiomyocyte dedifferentiation. OSM also upregulated YAP and TEAD1 and promoted cardiomyocyte dedifferentiation, indicating the existence of a positive feedback mechanism consisting of YAP, TEAD1, and OSM. CONCLUSIONS Although activation of YAP promotes cardiomyocyte regeneration after cardiac injury, it induces cardiomyocyte dedifferentiation and heart failure in the long-term in the presence of PO through activation of the YAP-TEAD1-OSM positive feedback mechanism.
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Affiliation(s)
- Shohei Ikeda
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.).,Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (S.I., H.S.)
| | - Wataru Mizushima
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.)
| | - Sebastiano Sciarretta
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.).,Department of AngioCardioNeurology, IRCCS Neuromed, Pozzilli, Italy (S. Sciarretta).,Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy (S. Sciarretta)
| | - Maha Abdellatif
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.)
| | - Peiyong Zhai
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.)
| | - Risa Mukai
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.)
| | - Nadezhda Fefelova
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.)
| | - Shin-Ichi Oka
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.)
| | - Michinari Nakamura
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.)
| | - Dominic P Del Re
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.)
| | | | - Ji Yeon Park
- Department of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers University, Newark (J.Y.P., B.T.)
| | - Bin Tian
- Department of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers University, Newark (J.Y.P., B.T.)
| | - Lai-Hua Xie
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.)
| | - Mohit Kumar
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, Heart, Lung and Vascular Institute, University of Cincinnati, OH (M.K., S. Sadayappan)
| | - Chiao-Po Hsu
- Division of Cardiovascular Surgery, Department of Surgery, Taipei Veterans General Hospital, National Yang-Ming University School of Medicine, Taiwan (C.-P.H.)
| | - Sakthivel Sadayappan
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, Heart, Lung and Vascular Institute, University of Cincinnati, OH (M.K., S. Sadayappan)
| | - Hiroaki Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (S.I., H.S.)
| | - Dae-Sik Lim
- Department of Biological Science, National Creative Research Initiatives Center for Cell Division and Differentiation, Korea Advanced Institute of Science and Technology, Daejeon (D.-S.L.)
| | - Junichi Sadoshima
- From the Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, Newark (S.I., W.M., S. Sciarretta, M.A., P.Z., R.M., N.F., S.-i.O., M.N., D.P.D.R., L.-H.X., J.S.)
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21
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Affiliation(s)
- Hyunsoo Cho
- From the Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon (H.C., J.H.A., D.-S.L., G.Y.K.)
| | - Jaeryung Kim
- Center for Vascular Research, Institute for Basic Science, Daejeon, Republic of Korea (J.K., G.Y.K.)
| | - Ji Hoon Ahn
- From the Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon (H.C., J.H.A., D.-S.L., G.Y.K.)
| | - Young-Kwon Hong
- Department of Surgery (Y.-K.H.), Keck School of Medicine, University of Southern California, Los Angeles
- Department of Biochemistry and Molecular Biology (Y.-K.H.), Keck School of Medicine, University of Southern California, Los Angeles
| | - Taija Mäkinen
- Department of Immunology, Genetics, and Pathology, Uppsala University, Sweden (T.M.)
| | - Dae-Sik Lim
- From the Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon (H.C., J.H.A., D.-S.L., G.Y.K.)
| | - Gou Young Koh
- From the Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon (H.C., J.H.A., D.-S.L., G.Y.K.)
- Center for Vascular Research, Institute for Basic Science, Daejeon, Republic of Korea (J.K., G.Y.K.)
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22
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Bagherzadeh Yazdchi S, Witalis M, Meli AP, Leung J, Li X, Panneton V, Chang J, Li J, Nutt SL, Johnson RL, Lim DS, Gu H, King IL, Suh WK. Hippo Pathway Kinase Mst1 Is Required for Long-Lived Humoral Immunity. J Immunol 2018; 202:69-78. [PMID: 30478091 DOI: 10.4049/jimmunol.1701407] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 10/24/2018] [Indexed: 12/31/2022]
Abstract
The protein kinase Mst1 is a key component of the evolutionarily conserved Hippo pathway that regulates cell survival, proliferation, differentiation, and migration. In humans, Mst1 deficiency causes primary immunodeficiency. Patients with MST1-null mutations show progressive loss of naive T cells but, paradoxically, mildly elevated serum Ab titers. Nonetheless, the role of Mst1 in humoral immunity remains poorly understood. In this study, we found that early T cell-dependent IgG1 responses in young adult Mst1-deficient mice were largely intact with signs of impaired affinity maturation. However, the established Ag-specific IgG1 titers in Mst1-deficient mice decayed more readily because of a loss of Ag-specific but not the overall bone marrow plasma cells. Despite the impaired affinity and longevity of Ag-specific Abs, Mst1-deficient mice produced plasma cells displaying apparently normal maturation markers with intact migratory and secretory capacities. Intriguingly, in immunized Mst1-deficient mice, T follicular helper cells were hyperactive, expressing higher levels of IL-21, IL-4, and surface CD40L. Accordingly, germinal center B cells progressed more rapidly into the plasma cell lineage, presumably forgoing rigorous affinity maturation processes. Importantly, Mst1-deficient mice had elevated levels of CD138+Blimp1+ splenic plasma cell populations, yet the size of the bone marrow plasma cell population remained normal. Thus, overproduced low-affinity plasma cells from dysregulated germinal centers seem to underlie humoral immune defects in Mst1-deficiency. Our findings imply that vaccination of Mst1-deficient human patients, even at the early stage of life, may fail to establish long-lived high-affinity humoral immunity and that prophylactic Ab replacement therapy can be beneficial to the patients.
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Affiliation(s)
- Sahar Bagherzadeh Yazdchi
- Institut de Recherches Cliniques de Montréal, Montreal, Quebec H2W 1R7, Canada.,Department of Microbiology and Immunology, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Mariko Witalis
- Institut de Recherches Cliniques de Montréal, Montreal, Quebec H2W 1R7, Canada.,Molecular Biology Program, University of Montreal, Montreal, Quebec H3C 3J7, Canada
| | - Alexandre P Meli
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Joanne Leung
- Institut de Recherches Cliniques de Montréal, Montreal, Quebec H2W 1R7, Canada.,Department of Microbiology and Immunology, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Xin Li
- Institut de Recherches Cliniques de Montréal, Montreal, Quebec H2W 1R7, Canada
| | - Vincent Panneton
- Institut de Recherches Cliniques de Montréal, Montreal, Quebec H2W 1R7, Canada.,Department of Microbiology, Infectiology, and Immunology, University of Montreal, Montreal, Quebec H3T 1J4, Canada
| | - Jinsam Chang
- Institut de Recherches Cliniques de Montréal, Montreal, Quebec H2W 1R7, Canada.,Molecular Biology Program, University of Montreal, Montreal, Quebec H3C 3J7, Canada
| | - Joanna Li
- Institut de Recherches Cliniques de Montréal, Montreal, Quebec H2W 1R7, Canada.,Department of Microbiology and Immunology, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Stephen L Nutt
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Randy L Johnson
- Department of Cancer Biology, MD Anderson Cancer Center, University of Texas, Houston, TX 77030; and
| | - Dae-Sik Lim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Hua Gu
- Institut de Recherches Cliniques de Montréal, Montreal, Quebec H2W 1R7, Canada
| | - Irah L King
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec H3A 2B4, Canada
| | - Woong-Kyung Suh
- Institut de Recherches Cliniques de Montréal, Montreal, Quebec H2W 1R7, Canada; .,Department of Microbiology and Immunology, McGill University, Montreal, Quebec H3A 2B4, Canada.,Molecular Biology Program, University of Montreal, Montreal, Quebec H3C 3J7, Canada
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23
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Abstract
NAFLD induces the development of advanced liver diseases such as NASH and liver cancer. Therefore, understanding the mechanism of NAFLD development is critical for its prevention and treatment. Ablation of PTEN or Hippo pathway components induces liver cancer in a murine model by hyperactive AKT or YAP/TAZ, respectively. Although the regulation of these two pathways occurs in the same hepatocyte, the details of crosstalk between Hippo-YAP/TAZ and PTEN-AKT pathways in liver homeostasis and tumorigenesis still remain unclear. Here, we found that depletion of both PTEN and SAV1 in liver promotes spontaneous NAFLD and liver cancer through hyperactive AKT via YAP/TAZ-mediated up-regulation of IRS2 transcription. Conversely, NAFLD is rescued by both ablation of YAP/TAZ and activation of the Hippo pathway. Furthermore, human HCC patients with NAFLD showed strong correlation between YAP/TAZ and IRS2 or phospho-AKT expression. Finally, the inhibition of AKT by MK-2206 treatment attenuates NAFLD development and tumorigenesis. Our findings indicate that Hippo pathway interacts with AKT signaling during the intervention with IRS2 to prevent NAFLD and liver cancer.
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Affiliation(s)
- Sun-Hye Jeong
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Dae-Sik Lim
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
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24
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Hagenbeek TJ, Webster JD, Kljavin NM, Chang MT, Pham T, Lee HJ, Klijn C, Cai AG, Totpal K, Ravishankar B, Yang N, Lee DH, Walsh KB, Hatzivassiliou G, de la Cruz CC, Gould SE, Wu X, Lee WP, Yang S, Zhang Z, Gu Q, Ji Q, Jackson EL, Lim DS, Dey A. The Hippo pathway effector TAZ induces TEAD-dependent liver inflammation and tumors. Sci Signal 2018; 11:11/547/eaaj1757. [PMID: 30206136 DOI: 10.1126/scisignal.aaj1757] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The Hippo signaling pathway regulates organ size and plays critical roles in maintaining tissue growth, homeostasis, and regeneration. Dysregulated in a wide spectrum of cancers, in mammals, this pathway is regulated by two key effectors, YAP and TAZ, that may functionally overlap. We found that TAZ promoted liver inflammation and tumor development. The expression of TAZ, but not YAP, in human liver tumors positively correlated with the expression of proinflammatory cytokines. Hyperactivated TAZ induced substantial myeloid cell infiltration into the liver and the secretion of proinflammatory cytokines through a TEAD-dependent mechanism. Furthermore, tumors with hyperactivated YAP and TAZ had distinct transcriptional signatures, which included the increased expression of inflammatory cytokines in TAZ-driven tumors. Our study elucidated a previously uncharacterized link between TAZ activity and inflammatory responses that influence tumor development in the liver.
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Affiliation(s)
- Thijs J Hagenbeek
- Department of Discovery Oncology, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Joshua D Webster
- Department of Pathology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Noelyn M Kljavin
- Department of Molecular Oncology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Matthew T Chang
- Department of Bioinformatics and Computational Biology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Trang Pham
- Department of Discovery Oncology, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Ho-June Lee
- Department of Discovery Oncology, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Christiaan Klijn
- Department of Bioinformatics and Computational Biology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Allen G Cai
- Department of Discovery Oncology, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Klara Totpal
- Department of Translational Oncology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Buvana Ravishankar
- Department of Cancer Immunotherapy, Genentech Inc., South San Francisco, CA 94080, USA
| | - Naiying Yang
- Department of Translational Oncology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Da-Hye Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Kevin B Walsh
- Department of Molecular Oncology, Genentech Inc., South San Francisco, CA 94080, USA
| | | | - Cecile C de la Cruz
- Department of Translational Oncology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Stephen E Gould
- Department of Translational Oncology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Xiumin Wu
- Department of Translational Immunology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Wyne P Lee
- Department of Translational Immunology, Genentech Inc., South San Francisco, CA 94080, USA
| | - Shuqun Yang
- Oncology Business Unit, Research Service Division, WuXi AppTec, Waigaoqiao Free Trade Zone, Shanghai 200131, China
| | - Zhixiang Zhang
- Oncology Business Unit, Research Service Division, WuXi AppTec, Waigaoqiao Free Trade Zone, Shanghai 200131, China
| | - Qingyang Gu
- Oncology Business Unit, Research Service Division, WuXi AppTec, Waigaoqiao Free Trade Zone, Shanghai 200131, China
| | - Qunsheng Ji
- Oncology Business Unit, Research Service Division, WuXi AppTec, Waigaoqiao Free Trade Zone, Shanghai 200131, China
| | - Erica L Jackson
- Department of Discovery Oncology, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA
| | - Dae-Sik Lim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Anwesha Dey
- Department of Discovery Oncology, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, USA.
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Kook H, Yu CW, Jeong HS, Jang DH, Lee SH, Joo HJ, Park JH, Hong SJ, Lim DS, Shim WJ, Kim JS, Lee HJ, Kang WC. P1668Comparison of clinical outcomes between left atrial appendage occlusion with dual antiplatelet therapy versus conventional antithrombotic therapy in patients with atrial fibrillation undergoing PCI. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- H Kook
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - C W Yu
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - H S Jeong
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - D H Jang
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - S H Lee
- Sejong General Hospital, Cardiology, Bucheon, Korea Republic of
| | - H J Joo
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - J H Park
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - S J Hong
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - D S Lim
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - W J Shim
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - J S Kim
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - H J Lee
- Sejong General Hospital, Cardiology, Bucheon, Korea Republic of
| | - W C Kang
- Gil Hospital, Cardiology, Incheon, Korea Republic of
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26
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Lee SH, Jang DH, Jung HS, Kook HD, Joo HJ, Park JH, Hong SJ, Lim DS, Shim WJ, Yu CW. P6387A comparison of procedural and short-term clinical outcomes of left atrial appendage occlusion between amplatzer cardiac plug and watchman device in the early learning periods. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S H Lee
- Mediplex Sejong Hospital, Cardiology, Incheon, Korea Republic of
| | - D H Jang
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - H S Jung
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - H D Kook
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - H J Joo
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - J H Park
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - S J Hong
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - D S Lim
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - W J Shim
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - C W Yu
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
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27
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Affiliation(s)
- Tackhoon Kim
- a Department of Biological Sciences , Korea Advanced Institute of Science and Technology , Daejeon , Korea.,b National Creative Research Center for Cell Division and Differentiation, Korea Advanced Institute of Science and Technology , Daejeon , Korea
| | - Dae-Sik Lim
- a Department of Biological Sciences , Korea Advanced Institute of Science and Technology , Daejeon , Korea.,b National Creative Research Center for Cell Division and Differentiation, Korea Advanced Institute of Science and Technology , Daejeon , Korea
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28
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Choi W, Kim J, Park J, Lee DH, Hwang D, Kim JH, Ashktorab H, Smoot D, Kim SY, Choi C, Koh GY, Lim DS. YAP/TAZ Initiates Gastric Tumorigenesis via Upregulation of MYC. Cancer Res 2018; 78:3306-3320. [PMID: 29669762 DOI: 10.1158/0008-5472.can-17-3487] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/07/2018] [Accepted: 04/12/2018] [Indexed: 11/16/2022]
Abstract
YAP and TAZ play oncogenic roles in various organs, but the role of YAP/TAZ in gastric cancer remains unclear. Here, we show that YAP/TAZ activation initiates gastric tumorigenesis in vivo and verify its significance in human gastric cancer. In mice, YAP/TAZ activation in the pyloric stem cell led to step-wise tumorigenesis. RNA sequencing identified MYC as a decisive target of YAP, which controls MYC at transcriptional and posttranscriptional levels. These mechanisms tightly regulated MYC in homeostatic conditions, but YAP activation altered this balance by impeding miRNA processing, causing a shift towards MYC upregulation. Pharmacologic inhibition of MYC suppressed YAP-dependent phenotypes in vitro and in vivo, verifying its functional role as a key mediator. Human gastric cancer samples also displayed a significant correlation between YAP and MYC. We reanalyzed human transcriptome data to verify enrichment of YAP signatures in a subpopulation of gastric cancers and found that our model closely reflected the molecular pattern of patients with high YAP activity. Overall, these results provide genetic evidence of YAP/TAZ as oncogenic initiators and drivers for gastric tumors with MYC as the key downstream mediator. These findings are also evident in human gastric cancer, emphasizing the significance of YAP/TAZ signaling in gastric carcinogenesis.Significance: YAP/TAZ activation initiates gastric carcinogenesis with MYC as the key downstream mediator. Cancer Res; 78(12); 3306-20. ©2018 AACR.
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Affiliation(s)
- Wonyoung Choi
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Jeongsik Kim
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Sciences, KAIST, Daejeon, Republic of Korea
| | - Jaeoh Park
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Sciences, KAIST, Daejeon, Republic of Korea
| | - Da-Hye Lee
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Sciences, KAIST, Daejeon, Republic of Korea
| | - Daehee Hwang
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Sciences, KAIST, Daejeon, Republic of Korea
| | - Jeong-Hwan Kim
- Medical Genomics Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Hassan Ashktorab
- Department of Medicine and Cancer Research Center, Howard University College of Medicine, Washington DC
| | - Duane Smoot
- Department of Internal Medicine, Meharry Medical College, Nashville, Tennessee
| | - Seon-Young Kim
- Medical Genomics Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Chan Choi
- Department of Pathology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Jeonnam, Republic of Korea
| | - Gou Young Koh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea.,Center for Vascular Research, Institute for Basic Science, Daejeon, Republic of Korea
| | - Dae-Sik Lim
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Sciences, KAIST, Daejeon, Republic of Korea.
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29
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Kim J, Hong CM, Park SM, Shin DH, Kim JY, Kwon SM, Kim JH, Kim CD, Lim DS, Lee D. SURF4 has oncogenic potential in NIH3T3 cells. Biochem Biophys Res Commun 2018; 502:43-47. [PMID: 29777698 DOI: 10.1016/j.bbrc.2018.05.116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 05/16/2018] [Indexed: 11/29/2022]
Abstract
SURF4, which is located in the Surfeit gene cluster, encodes for a conserved integral membrane protein containing multiple putative transmembrane regions. However, the physiological role of SURF4 has not been determined. We found that SURF4 demonstrated aberrant amplification and increased expression in the tumor tissues of several human cancer patients. Overexpression of SURF4 led to increased cell proliferation, migration, and maintenance of anchorage-independent growth. In addition, NIH3T3 cells overexpressing SURF4 induced tumor growth in the mice. Collectively, our findings demonstrate that SURF4 has the potential for inducing cellular transformation and cell migration in vitro and has oncogenic transformation ability in vivo.
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Affiliation(s)
- Jayoung Kim
- Department of Medical Science, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea
| | - Chae Mi Hong
- Department of Medical Science, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea
| | - Su Min Park
- Department of Medical Science, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea
| | - Dong Hoon Shin
- Department of Pathology, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea
| | - Jee Yeon Kim
- Department of Pathology, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea
| | - Sang-Mo Kwon
- Department of Physiology, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea
| | - Jae Ho Kim
- Department of Physiology, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea
| | - Chi Dae Kim
- Department of Pharmacology, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea
| | - Dae-Sik Lim
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Dongjun Lee
- Department of Medical Science, Pusan National University School of Medicine, Yangsan 50612, Republic of Korea; Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
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30
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Jeong SH, Kim HB, Kim MC, Lee JM, Lee JH, Kim JH, Kim JW, Park WY, Kim SY, Kim JB, Kim H, Kim JM, Choi HS, Lim DS. Hippo-mediated suppression of IRS2/AKT signaling prevents hepatic steatosis and liver cancer. J Clin Invest 2018; 128:1010-1025. [PMID: 29400692 DOI: 10.1172/jci95802] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 12/19/2017] [Indexed: 12/17/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a major risk factor for liver cancer; therefore, its prevention is an important clinical goal. Ablation of phosphatase and tensin homolog (PTEN) or the protein kinase Hippo signaling pathway induces liver cancer via activation of AKT or the transcriptional regulators YAP/TAZ, respectively; however, the potential for crosstalk between the PTEN/AKT and Hippo/YAP/TAZ pathways in liver tumorigenesis has thus far remained unclear. Here, we have shown that deletion of both PTEN and SAV1 in the liver accelerates the development of NAFLD and liver cancer in mice. At the molecular level, activation of YAP/TAZ in the liver of Pten-/- Sav1-/- mice amplified AKT signaling through the upregulation of insulin receptor substrate 2 (IRS2) expression. Both ablation of YAP/TAZ and activation of the Hippo pathway could rescue these phenotypes. A high level of YAP/ TAZ expression was associated with a high level of IRS2 expression in human hepatocellular carcinoma (HCC). Moreover, treatment with the AKT inhibitor MK-2206 or knockout of IRS2 by AAV-Cas9 successfully repressed liver tumorigenesis in Pten-/- Sav1-/- mice. Thus, our findings suggest that Hippo signaling interacts with AKT signaling by regulating IRS2 expression to prevent NAFLD and liver cancer progression and provide evidence that impaired crosstalk between these 2 pathways accelerates NAFLD and liver cancer.
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Affiliation(s)
- Sun-Hye Jeong
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Han-Byul Kim
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Min-Chul Kim
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Ji-Min Lee
- National Creative Research Initiatives Center for Nuclear Receptor Signals and Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, South Korea
| | - Jae Ho Lee
- National Creative Research Initiatives Center for Adipose Tissue Remodeling, School of Biological Sciences, Institute of Molecular Biology and Genetics, Seoul National University, Seoul, South Korea
| | - Jeong-Hwan Kim
- Medical Genomics Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Jin-Woo Kim
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Woong-Yang Park
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Seon-Young Kim
- Medical Genomics Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Jae Bum Kim
- National Creative Research Initiatives Center for Adipose Tissue Remodeling, School of Biological Sciences, Institute of Molecular Biology and Genetics, Seoul National University, Seoul, South Korea
| | - Haeryoung Kim
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Jin-Man Kim
- Department of Pathology, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Hueng-Sik Choi
- National Creative Research Initiatives Center for Nuclear Receptor Signals and Hormone Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju, South Korea
| | - Dae-Sik Lim
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
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31
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Park GS, Oh H, Kim M, Kim T, Johnson RL, Irvine KD, Lim DS. An evolutionarily conserved negative feedback mechanism in the Hippo pathway reflects functional difference between LATS1 and LATS2. Oncotarget 2018; 7:24063-75. [PMID: 27006470 PMCID: PMC5029684 DOI: 10.18632/oncotarget.8211] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 03/06/2016] [Indexed: 12/13/2022] Open
Abstract
The Hippo pathway represses YAP oncoprotein activity through phosphorylation by LATS kinases. Although variety of upstream components has been found to participate in the Hippo pathway, the existence and function of negative feedback has remained uncertain. We found that activated YAP, together with TEAD transcription factors, directly induces transcription of LATS2, but not LATS1, to form a negative feedback loop. We also observed increased mRNA levels of Hippo upstream components upon YAP activation. To reveal the physiological role of this negative feedback regulation, we deleted Lats2 or Lats1 in the liver-specific Sav1-knockout mouse model which develops a YAP-induced tumor. Additional deletion of Lats2 severely enhanced YAP-induced tumorigenic phenotypes in a liver specific Sav1 knock-out mouse model while additional deletion of Lats1 mildly affected the phenotype. Only Sav1 and Lats2 double knock-down cells formed larger colonies in soft agar assay, thereby recapitulating accelerated tumorigenesis seen in vivo. Importantly, this negative feedback is evolutionarily conserved, as Drosophila Yorkie (YAP ortholog) induces transcription of Warts (LATS2 ortholog) with Scalloped (TEAD ortholog). Collectively, we demonstrated the existence and function of an evolutionarily conserved negative feedback mechanism in the Hippo pathway, as well as the functional difference between LATS1 and LATS2 in regulation of YAP.
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Affiliation(s)
- Gun-Soo Park
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Hyangyee Oh
- Howard Hughes Medical Institute, Waksman Institute and Department of Molecular Biology and Biochemistry, Rutgers University, Brunswick, New Jersey, USA
| | - Minchul Kim
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Tackhoon Kim
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Randy L Johnson
- Department of Cancer Biology, University of Texas, M.D. Anderson Cancer Center, Houston, Texas, USA
| | - Kenneth D Irvine
- Howard Hughes Medical Institute, Waksman Institute and Department of Molecular Biology and Biochemistry, Rutgers University, Brunswick, New Jersey, USA
| | - Dae-Sik Lim
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
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32
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Lee DH, Kim TS, Lee D, Lim DS. Mammalian sterile 20 kinase 1 and 2 are important regulators of hematopoietic stem cells in stress condition. Sci Rep 2018; 8:942. [PMID: 29343826 PMCID: PMC5772645 DOI: 10.1038/s41598-018-19637-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 01/03/2018] [Indexed: 01/10/2023] Open
Abstract
The mammalian Hippo signaling pathway has been implicated in the self-renewal and differentiation of stem and progenitor cells. MST1 and MST2 (MST1/2) are core serine-threonine kinases in the Hippo signaling pathway, one of which, MST1, has been extensively investigated for its role in T cell and myeloid cell function. These studies have identified MST1 as a promising therapeutic target in immunological disease. However, the roles of MST1/2 in hematopoietic stem cell (HSC) function in vivo are not fully understood. Here, we report that mice with a conditional deletion of Mst1/2 exhibit impaired hematopoietic stem and progenitor cell (HSPC) function under stress condition. Furthermore, Mst1/2 deletion markedly altered mature cell output. Therefore, MST1/2 are indispensable for maintenance as well as function of stem and progenitor cells under steady state conditions and with transplantation stress.
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Affiliation(s)
- Da-Hye Lee
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Tae-Shin Kim
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Dongjun Lee
- Department of Medical Science, Pusan National University School of Medicine, Yangsan, 50612, Korea.
| | - Dae-Sik Lim
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Korea.
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33
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Moon KH, Kim HT, Lee D, Rao MB, Levine EM, Lim DS, Kim JW. Differential Expression of NF2 in Neuroepithelial Compartments Is Necessary for Mammalian Eye Development. Dev Cell 2017; 44:13-28.e3. [PMID: 29249622 DOI: 10.1016/j.devcel.2017.11.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 10/10/2017] [Accepted: 11/13/2017] [Indexed: 12/28/2022]
Abstract
The optic neuroepithelial continuum of vertebrate eye develops into three differentially growing compartments: the retina, the ciliary margin (CM), and the retinal pigment epithelium (RPE). Neurofibromin 2 (Nf2) is strongly expressed in slowly expanding RPE and CM compartments, and the loss of mouse Nf2 causes hyperplasia in these compartments, replicating the ocular abnormalities seen in human NF2 patients. The hyperplastic ocular phenotypes were largely suppressed by heterozygous deletion of Yap and Taz, key targets of the Nf2-Hippo signaling pathway. We also found that, in addition to feedback transcriptional regulation of Nf2 by Yap/Taz in the CM, activation of Nf2 expression by Mitf in the RPE and suppression by Sox2 in retinal progenitor cells are necessary for the differential growth of the corresponding cell populations. Together, our findings reveal that Nf2 is a key player that orchestrates the differential growth of optic neuroepithelial compartments during vertebrate eye development.
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Affiliation(s)
- Kyeong Hwan Moon
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Hyoung-Tai Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Dahye Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Mahesh B Rao
- Department of Ophthalmology and Visual Sciences, Vanderbilt University, Nashville, TN 37232, USA
| | - Edward M Levine
- Department of Ophthalmology and Visual Sciences, Vanderbilt University, Nashville, TN 37232, USA
| | - Dae-Sik Lim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Jin Woo Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea.
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34
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Kim J, Kim YH, Kim J, Park DY, Bae H, Lee DH, Kim KH, Hong SP, Jang SP, Kubota Y, Kwon YG, Lim DS, Koh GY. YAP/TAZ regulates sprouting angiogenesis and vascular barrier maturation. J Clin Invest 2017; 127:3441-3461. [PMID: 28805663 DOI: 10.1172/jci93825] [Citation(s) in RCA: 254] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/29/2017] [Indexed: 12/28/2022] Open
Abstract
Angiogenesis is a multistep process that requires coordinated migration, proliferation, and junction formation of vascular endothelial cells (ECs) to form new vessel branches in response to growth stimuli. Major intracellular signaling pathways that regulate angiogenesis have been well elucidated, but key transcriptional regulators that mediate these signaling pathways and control EC behaviors are only beginning to be understood. Here, we show that YAP/TAZ, a transcriptional coactivator that acts as an end effector of Hippo signaling, is critical for sprouting angiogenesis and vascular barrier formation and maturation. In mice, endothelial-specific deletion of Yap/Taz led to blunted-end, aneurysm-like tip ECs with fewer and dysmorphic filopodia at the vascular front, a hyper-pruned vascular network, reduced and disarranged distributions of tight and adherens junction proteins, disrupted barrier integrity, subsequent hemorrhage in growing retina and brain vessels, and reduced pathological choroidal neovascularization. Mechanistically, YAP/TAZ activates actin cytoskeleton remodeling, an important component of filopodia formation and junction assembly. Moreover, YAP/TAZ coordinates EC proliferation and metabolic activity by upregulating MYC signaling. Overall, these results show that YAP/TAZ plays multifaceted roles for EC behaviors, proliferation, junction assembly, and metabolism in sprouting angiogenesis and barrier formation and maturation and could be a potential therapeutic target for treating neovascular diseases.
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Affiliation(s)
- Jongshin Kim
- Center for Vascular Research, Institute for Basic Science, Daejeon, South Korea
| | - Yoo Hyung Kim
- Center for Vascular Research, Institute for Basic Science, Daejeon, South Korea.,Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Jaeryung Kim
- Center for Vascular Research, Institute for Basic Science, Daejeon, South Korea.,Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Do Young Park
- Center for Vascular Research, Institute for Basic Science, Daejeon, South Korea.,Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Hosung Bae
- Center for Vascular Research, Institute for Basic Science, Daejeon, South Korea.,Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Da-Hye Lee
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Science, KAIST, Daejeon, South Korea
| | - Kyun Hoo Kim
- Center for Vascular Research, Institute for Basic Science, Daejeon, South Korea.,Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Seon Pyo Hong
- Center for Vascular Research, Institute for Basic Science, Daejeon, South Korea.,Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Seung Pil Jang
- Center for Vascular Research, Institute for Basic Science, Daejeon, South Korea.,Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
| | - Yoshiaki Kubota
- Department of Vascular Biology, The Sakaguchi Laboratory, Keio University School of Medicine, Tokyo, Japan
| | - Young-Guen Kwon
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Dae-Sik Lim
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Science, KAIST, Daejeon, South Korea
| | - Gou Young Koh
- Center for Vascular Research, Institute for Basic Science, Daejeon, South Korea.,Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea
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35
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Yoo G, Kim T, Chung C, Hwang DS, Lim DS. The novel YAP target gene, SGK1, upregulates TAZ activity by blocking GSK3β-mediated TAZ destabilization. Biochem Biophys Res Commun 2017. [DOI: 10.1016/j.bbrc.2017.06.092] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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36
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Jang W, Kim T, Koo JS, Kim SK, Lim DS. Mechanical cue-induced YAP instructs Skp2-dependent cell cycle exit and oncogenic signaling. EMBO J 2017; 36:2510-2528. [PMID: 28673931 DOI: 10.15252/embj.201696089] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 06/03/2017] [Accepted: 06/07/2017] [Indexed: 11/09/2022] Open
Abstract
Mechanical tensions are usually generated during development at spatially defined regions within tissues. Such physical cues dictate the cellular decisions of proliferation or cell cycle arrest. Yet, the mechanisms by which mechanical stress controls the cell cycle are not yet fully understood. Here, we report that mechanical cues function upstream of Skp2 transcription in human breast cancer cells. We found that YAP, the mechano-responsive oncogenic Hippo signaling effector, directly promotes Skp2 transcription. YAP inactivation induces cell cycle exit (G0) by down-regulating Skp2, causing p21/p27 to accumulate. Both Skp2 reconstitution and p21/p27 depletion can rescue the observed defect in cell cycle progression. In the context of a tissue-mimicking 3D culture system, Skp2 inactivation effectively suppresses YAP-driven oncogenesis and aberrant stiff 3D matrix-evoked epithelial tissue behaviors. Finally, we also found that the expression of Skp2 and YAP is positively correlated in breast cancer patients. Our results not only reveal the molecular mechanism by which mechanical cues induce Skp2 transcription, but also uncover a role for YAP-Skp2 oncogenic signaling in the relationship between tissue rigidity and cancer progression.
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Affiliation(s)
- Wonyul Jang
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Tackhoon Kim
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Ja Seung Koo
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - Sang-Kyum Kim
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - Dae-Sik Lim
- Department of Biological Sciences, National Creative Research Initiatives Center, Korea Advanced Institute of Science and Technology, Daejeon, Korea
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Robertson A, Mohamed TMA, El Maadawi Z, Stafford N, Bui T, Lim DS, Cartwright EJ, Oceandy D. Genetic ablation of the mammalian sterile-20 like kinase 1 (Mst1) improves cell reprogramming efficiency and increases induced pluripotent stem cell proliferation and survival. Stem Cell Res 2017; 20:42-49. [PMID: 28257933 PMCID: PMC5376382 DOI: 10.1016/j.scr.2017.02.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 02/15/2017] [Accepted: 02/22/2017] [Indexed: 11/26/2022] Open
Abstract
Adult fibroblasts can be reprogrammed into induced pluripotent stem cells (iPSC) for use in various applications. However, there are challenges in iPSC generation including low reprogramming efficiency, yield, cell survival and viability. Since the Hippo signalling pathway is a key pathway involved in regulating cell proliferation and survival, we here test whether modification of the Hippo pathway will enhance the efficiency of iPSC generation and improve their survival. The Hippo pathway was modified by genetic ablation of the mammalian sterile-20 like kinase 1 (Mst1), a major component of the pathway. Using adult skin fibroblasts isolated from Mst1 knockout mice (Mst1−/−) as a source of iPSC we found that genetic ablation of Mst1 leads to significantly increased reprogramming efficiency by 43.8%. Moreover, Mst1−/− iPSC displayed increase proliferation by 12% as well as an increase in cell viability by 20% when treated with a chemical hypoxic inducer. Mechanistically, we found higher activity of YAP, the main downstream effector of the Hippo pathway, in iPSC lacking Mst1. In conclusion, our data suggests that Mst1 can be targeted to improve the efficiency of adult somatic cell reprogramming as well as to enhance iPSC proliferation and survival. Genetic deletion of Mst1 increases the efficiency of cell reprogramming. iPSC lacking Mst1 displays higher proliferation rate than WT iPSC. In response to chemical hypoxia Mst1−/− iPSC demonstrates higher survival.
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Affiliation(s)
- Abigail Robertson
- Division of Cardiovascular Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Tamer M A Mohamed
- Division of Cardiovascular Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; J. David Gladstone Research Institutes, San Francisco, CA, USA; Faculty of Pharmacy, Zagazig University, Egypt
| | - Zeinab El Maadawi
- Division of Cardiovascular Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; Department of Histology and Cell Biology, Faculty of Medicine, Cairo University, Egypt
| | - Nicholas Stafford
- Division of Cardiovascular Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Thuy Bui
- Division of Cardiovascular Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Dae-Sik Lim
- Department of Biological Sciences, KAIST, Daejon, Republic of Korea
| | - Elizabeth J Cartwright
- Division of Cardiovascular Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Delvac Oceandy
- Division of Cardiovascular Sciences, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom.
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38
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Kim HB, Kim M, Park YS, Park I, Kim T, Yang SY, Cho CJ, Hwang D, Jung JH, Markowitz SD, Hwang SW, Yang SK, Lim DS, Myung SJ. Prostaglandin E 2 Activates YAP and a Positive-Signaling Loop to Promote Colon Regeneration After Colitis but Also Carcinogenesis in Mice. Gastroenterology 2017; 152:616-630. [PMID: 27864128 PMCID: PMC5285392 DOI: 10.1053/j.gastro.2016.11.005] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 10/05/2016] [Accepted: 11/02/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Prostaglandin E2 (PGE2) is mediator of inflammation that regulates tissue regeneration, but its continual activation has been associated with carcinogenesis. Little is known about factors in the PGE2 signaling pathway that contribute to tumor formation. We investigated whether yes-associated protein 1 (YAP1), a transcriptional co-activator in the Hippo signaling pathway, mediates PGE2 function. METHODS DLD-1 and SW480 colon cancer cell lines were transfected with vectors expressing transgenes or small hairpin RNAs and incubated with recombinant PGE2, with or without pharmacologic inhibitors of signaling proteins, and analyzed by immunoblot, immunofluorescence, quantitative reverse-transcription polymerase chain reaction, transcriptional reporter, and proliferation assays. Dextran sodium sulfate (DSS) was given to induce colitis in C57/BL6 (control) mice, as well as in mice with disruption of the hydroxyprostaglandin dehydrogenase 15 gene (15-PGDH-knockout mice), Yap1 gene (YAP-knockout mice), and double-knockout mice. Some mice also were given indomethacin to block PGE2 synthesis. 15-PGDH knockout mice were crossed with mice with intestine-specific disruption of the salvador family WW domain containing 1 gene (Sav1), which encodes an activator of Hippo signaling. We performed immunohistochemical analyses of colon biopsy samples from 26 patients with colitis-associated cancer and 51 age-and sex-matched patients with colorectal cancer (without colitis). RESULTS Incubation of colon cancer cell lines with PGE2 led to phosphorylation of cyclic adenosine monophosphate-responsive element binding protein 1 and increased levels of YAP1 messenger RNA, protein, and YAP1 transcriptional activity. This led to increased transcription of the prostaglandin-endoperoxide synthase 2 gene (PTGS2 or cyclooxygenase 2) and prostaglandin E-receptor 4 gene (PTGER4 or EP4). Incubation with PGE2 promoted proliferation of colon cancer cell lines, but not cells with knockdown of YAP1. Control mice developed colitis after administration of DSS, but injection of PGE2 led to colon regeneration in these mice. However, YAP-knockout mice did not regenerate colon tissues and died soon after administration of DSS. 15-PGDH-knockout mice regenerated colon tissues more rapidly than control mice after withdrawal of DSS, and had faster recovery of body weight, colon length, and colitis histology scores. These effects were reversed by injection of indomethacin. SAV1-knockout or 15-PGDH-knockout mice did not develop spontaneous tumors after colitis induction, but SAV1/15-PGDH double-knockout mice developed polyps that eventually progressed to carcinoma in situ. Administration of indomethacin to these mice prevented spontaneous tumor formation. Levels of PGE2 correlated with those of YAP levels in human sporadic colorectal tumors and colitis-associated tumors. CONCLUSIONS PGE2 signaling increases the expression and transcriptional activities of YAP1, leading to increased expression of cyclooxygenase 2 and EP4 to activate a positive signaling loop. This pathway promotes proliferation of colon cancer cell lines and colon tissue regeneration in mice with colitis. Constitutive activation of this pathway led to formation of polyps and colon tumors in mice.
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Affiliation(s)
- Han-Byul Kim
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea,Graduate School of Medical Science and Engineering Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea,Biomedical Research Center, Asan Institute for Life Sciences, Seoul 138-736, South Korea
| | - Minchul Kim
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Young-Soo Park
- Biomedical Research Center, Asan Institute for Life Sciences, Seoul 138-736, South Korea,Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 138-736, South Korea
| | - Intae Park
- Graduate School of Medical Science and Engineering Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea,Biomedical Research Center, Asan Institute for Life Sciences, Seoul 138-736, South Korea
| | - Tackhoon Kim
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Sung-Yeun Yang
- Department of Gastroenterology, Haeundae Paik Hospital, Inje University, Busan 612896, South Korea
| | - Charles J. Cho
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 138-736, South Korea
| | - DaeHee Hwang
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Jin-Hak Jung
- Biomedical Research Center, Asan Institute for Life Sciences, Seoul 138-736, South Korea
| | - Sanford D. Markowitz
- Department of Medicine and Comprehensive Cancer Center, University Hospitals Case Medical Center and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
| | - Sung Wook Hwang
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 138-736, South Korea
| | - Suk-Kyun Yang
- Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 138-736, South Korea
| | - Dae-Sik Lim
- National Creative Research Initiatives Center, Department of Biological Sciences, Biomedical Research Center, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea.
| | - Seung-Jae Myung
- Biomedical Research Center, Asan Institute for Life Sciences, Seoul, South Korea; Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea; Department of Convergence Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
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Kim T, Hwang D, Lee D, Kim JH, Kim SY, Lim DS. MRTF potentiates TEAD-YAP transcriptional activity causing metastasis. EMBO J 2016; 36:520-535. [PMID: 28028053 DOI: 10.15252/embj.201695137] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 11/25/2016] [Accepted: 11/28/2016] [Indexed: 12/12/2022] Open
Abstract
Yes-associated protein (YAP) and myocardin-related transcription factor (MRTF) play similar roles and exhibit significant crosstalk in directing transcriptional responses to chemical and physical extracellular cues. The mechanism underlying this crosstalk, however, remains unclear. Here, we show MRTF family proteins bind YAP via a conserved PPXY motif that interacts with the YAP WW domain. This interaction allows MRTF to recruit NcoA3 to the TEAD-YAP transcriptional complex and potentiate its transcriptional activity. We show this interaction of MRTF and YAP is critical for LPA-induced cancer cell invasion in vitro and breast cancer metastasis to the lung in vivo We also demonstrate the significance of MRTF-YAP binding in regulation of YAP activity upon acute actin cytoskeletal damage. Acute actin disruption induces nucleo-cytoplasmic shuttling of MRTF, and this process underlies the LATS-independent regulation of YAP activity. Our results provide clear evidence of crosstalk between MRTF and YAP independent of the LATS kinases that normally act upstream of YAP signaling. Our results also suggest a mechanism by which extracellular stimuli can coordinate physiological events downstream of YAP.
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Affiliation(s)
- Tackhoon Kim
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Daehee Hwang
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Dahye Lee
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Jeong-Hwan Kim
- Medical Genomics Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Korea
| | - Seon-Young Kim
- Medical Genomics Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Korea
| | - Dae-Sik Lim
- National Creative Research Initiatives Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
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40
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Kurz ARM, Pruenster M, Rohwedder I, Ramadass M, Schäfer K, Harrison U, Gouveia G, Nussbaum C, Immler R, Wiessner JR, Margraf A, Lim DS, Walzog B, Dietzel S, Moser M, Klein C, Vestweber D, Haas R, Catz SD, Sperandio M. MST1-dependent vesicle trafficking regulates neutrophil transmigration through the vascular basement membrane. J Clin Invest 2016; 126:4125-4139. [PMID: 27701149 DOI: 10.1172/jci87043] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 08/25/2016] [Indexed: 12/20/2022] Open
Abstract
Neutrophils need to penetrate the perivascular basement membrane for successful extravasation into inflamed tissue, but this process is incompletely understood. Recent findings have associated mammalian sterile 20-like kinase 1 (MST1) loss of function with a human primary immunodeficiency disorder, suggesting that MST1 may be involved in immune cell migration. Here, we have shown that MST1 is a critical regulator of neutrophil extravasation during inflammation. Mst1-deficient (Mst1-/-) neutrophils were unable to migrate into inflamed murine cremaster muscle venules, instead persisting between the endothelium and the basement membrane. Mst1-/- neutrophils also failed to extravasate from gastric submucosal vessels in a murine model of Helicobacter pylori infection. Mechanistically, we observed defective translocation of VLA-3, VLA-6, and neutrophil elastase from intracellular vesicles to the surface of Mst1-/- neutrophils, indicating that MST1 is required for this crucial step in neutrophil transmigration. Furthermore, we found that MST1 associates with the Rab27 effector protein synaptotagmin-like protein 1 (JFC1, encoded by Sytl1 in mice), but not Munc13-4, thereby regulating the trafficking of Rab27-positive vesicles to the cellular membrane. Together, these findings highlight a role for MST1 in vesicle trafficking and extravasation in neutrophils, providing an additional mechanistic explanation for the severe immune defect observed in patients with MST1 deficiency.
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41
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Chung C, Yoo G, Kim T, Lee D, Lee CS, Cha HR, Park YH, Moon JY, Jung SS, Kim JO, Lee JC, Kim SY, Park HS, Park M, Park DI, Lim DS, Jang KW, Lee JE. The E3 ubiquitin ligase CHIP selectively regulates mutant epidermal growth factor receptor by ubiquitination and degradation. Biochem Biophys Res Commun 2016; 479:152-158. [PMID: 27475501 DOI: 10.1016/j.bbrc.2016.07.111] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 07/25/2016] [Indexed: 12/11/2022]
Abstract
Somatic mutation in the tyrosine kinase domain of epidermal growth factor receptor (EGFR) is a decisive factor for the therapeutic response to EGFR tyrosine kinase inhibitors (EGFR-TKIs) in lung adenocarcinoma. The stability of mutant EGFR is maintained by various regulators, including heat shock protein 90 (Hsp90). The C terminus of Hsc70-interacting protein (CHIP) is a Hsp70/Hsp90 co-chaperone and exhibits E3 ubiquitin ligase activity. The high-affinity Hsp90-CHIP complex recognizes and selectively regulates their client proteins. CHIP also works with its own E3 ligase activity independently of Hsp70/Hsp90. Here, we investigated the role of CHIP in regulating EGFR in lung adenocarcinoma and also evaluated the specificity of CHIP's effects on mutant EGFR. In HEK 293T cells transfected with either WT EGFR or EGFR mutants, the overexpression of CHIP selectively decreased the expression of certain EGFR mutants (G719S, L747_E749del A750P and L858R) but not WT EGFR. In a pull-down assay, CHIP selectively interacted with EGFR mutants and simultaneously induced their ubiquitination and proteasomal degradation. The expressions of mutant EGFR in PC9 and H1975 were diminished by CHIP, while the expression of WT EGFR in A549 was nearly not affected. In addition, CHIP overexpression inhibited cell proliferation and xenograft's tumor growth of EGFR mutant cell lines, but not WT EGFR cell lines. EGFR mutant specific ubiquitination by CHIP may provide a crucial regulating mechanism for EGFR in lung adenocarcinoma. Our results suggest that CHIP can be novel therapeutic target for overcoming the EGFR TKI resistance.
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Affiliation(s)
- Chaeuk Chung
- Cancer Institute of Chungnam National University, Daejeon 35015, South Korea; Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Geon Yoo
- School of Biological Sciences, Seoul National University, Seoul 151-742, South Korea
| | - Tackhoon Kim
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology(KAIST), Daejeon 34141, South Korea
| | - Dahye Lee
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Choong-Sik Lee
- Department of Pathology, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Hye Rim Cha
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Yeon Hee Park
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Jae Young Moon
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Sung Soo Jung
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Ju Ock Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Jae Cheol Lee
- Department of Oncology, College of Medicine, University of Ulsan Asan Medical Center, Seoul, South Korea
| | - Sun Young Kim
- Cancer Institute of Chungnam National University, Daejeon 35015, South Korea; Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Hee Sun Park
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Myoungrin Park
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Dong Il Park
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Dae-Sik Lim
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology(KAIST), Daejeon 34141, South Korea
| | - Kang Won Jang
- Cancer Institute of Chungnam National University, Daejeon 35015, South Korea; Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea
| | - Jeong Eun Lee
- Cancer Institute of Chungnam National University, Daejeon 35015, South Korea; Division of Pulmonology, Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon 35015, South Korea.
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Kim T, Yang SJ, Hwang D, Song J, Kim M, Kyum Kim S, Kang K, Ahn J, Lee D, Kim MY, Kim S, Seung Koo J, Seok Koh S, Kim SY, Lim DS. A basal-like breast cancer-specific role for SRF-IL6 in YAP-induced cancer stemness. Nat Commun 2015; 6:10186. [PMID: 26671411 PMCID: PMC4703869 DOI: 10.1038/ncomms10186] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 11/11/2015] [Indexed: 02/07/2023] Open
Abstract
The switch between stem/progenitor cell expansion and differentiation is critical for organ homeostasis. The mammalian Hippo pathway effector and oncoprotein YAP expands undifferentiated stem/progenitor cells in various tissues. However, the YAP-associated transcription factors and downstream targets underlying this stemness-promoting activity are poorly understood. Here we show that the SRF–IL6 axis is the critical mediator of YAP-induced stemness in mammary epithelial cells and breast cancer. Specifically, serum response factor (SRF)-mediated binding and recruitment of YAP to mammary stem cell (MaSC) signature-gene promoters induce numerous MaSC signature genes, among which the target interleukin (IL)-6 is critical for YAP-induced stemness. High SRF–YAP/TAZ expression is correlated with IL6-enriched MaSC/basal-like breast cancer (BLBC). Finally, we show that this high SRF expression enables YAP to more efficiently induce IL6 and stemness in BLBC compared with luminal-type breast cancer. Collectively, our results establish the importance of SRF–YAP–IL6 signalling in promoting MaSC-like properties in a BLBC-specific manner. The downstream effector of the Hippo pathway, YAP, is a critical regulator of both normal and cancer stem cell properties. In this study, the authors show that in basal-like breast tumors YAP forms a complex with SRF and together they induce a mammary stem cell gene signature through the transcriptional activation of IL-6.
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Affiliation(s)
- Tackhoon Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.,National Creative Research Center for Cell Division and Differentiation, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Suk-Jin Yang
- Medical Genomics Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Korea
| | - Daehee Hwang
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.,National Creative Research Center for Cell Division and Differentiation, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Jinhoi Song
- Therapeutic Antibody Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Korea
| | - Minchul Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.,National Creative Research Center for Cell Division and Differentiation, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Sang Kyum Kim
- Department of Pathology, Yonsei University College of Medicine, Seoul 120-752, Korea
| | - Keunsoo Kang
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Jaebum Ahn
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.,National Creative Research Center for Cell Division and Differentiation, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Daeyoup Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Mi-Young Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Seyun Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Ja Seung Koo
- Department of Pathology, Yonsei University College of Medicine, Seoul 120-752, Korea
| | - Sang Seok Koh
- Department of Biological Sciences, Dong-A University, Busan 604-714, Korea
| | - Seon-Young Kim
- Medical Genomics Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Korea
| | - Dae-Sik Lim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
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Martins Fernandes S, Badano L, Garcia Campos A, Erdei T, Mehdipoor G, Hanboly N, Michalski BW, Vriz O, Mo VY, Le TT, Ribeiro JM, Ternacle J, Yurdakul SELEN, Shetye A, Stoebe S, Lisowska A, Chinali M, Orabona M, Contaldi C, De La Chica JA, Codolosa JN, Trzcinski P, Prado Diaz S, Morales Portano JD, Ha SJ, Valente F, Joseph G, Valente F, Scali MC, Cordeiro F, Duchateau N, Fabris E, Costantino MF, Cho IJ, Goublaire C, Lam W, Galli E, Kim KH, Mariani M, Malev E, Zuercher F, Tang Z, Cimino S, Mahia P, De La Chica JA, Petrovic J, Ciobotaru V, Remsey- Semmelweiss E, Kogoj P, Guerreiro S, Saxena A, Mozenska O, Pontone G, Macaya Ten F, Caballero L, Avegliano G, Halmai L, Reis L, Trifunovic D, Gospodinova M, Makavos G, D'ascenzi F, Dantas Tavares De Melo M, Bonapace S, Kulkarni A, Cameli M, Ingvarsson A, Driessen MMP, Tufekcioglu O, Radulescu D, Barac A, Cioffi G, Almeida Morais L, Ledakowicz-Polak A, Portugal G, Naksuk N, Parato VM, Kovalova S, Cherubini A, Corrado G, Malev E, Wierzbowska-Drabik K, Lesevic H, Laredj N, Pieles GE, Generati G, Van Zalen JJ, Aquila I, Cheng HL, Lanzoni L, Asmarats Serra L, Kadrabulatova S, Ranjbar S, Szczesniak-Stanczyk D, Sharka I, Di Salvo G, Ben Kahla S, Li L, Hadeed HA, Habeeb HA, Toscano A, Granata F, Djikic D, Wdowiak-Okrojek K, Girgis HYA, Sharma A, Soro C, Gallego Page JC, Corneli M, Teixeira R, Roussin I, Lynch M, Muraru D, Romeo G, Ermacora D, Marotta C, Aruta P, Cucchini U, Iliceto S, Martin-Fernandez M, De La Hera Galarza JM, Corros-Vicente C, Colunga Blanco S, Velasco-Alonso E, Leon-Aguero V, Rodriguez-Suarez ML, Moris De La Tassa C, Edwards J, Braim D, Price C, Fraser AG, Salmani F, Arjmand Shabestari A, Szymczyk E, Kupczynska K, Peczek L, Nawrot B, Lipiec P, Kasprzak JD, Driussi C, Ferrara F, Brosolo G, Antonini-Canterin F, Magne J, Aboyans V, Bossone E, Bellucci BM, Fisher JM, Balekian AA, Idapalapati S, Huang F, Wong JI, Tan RS, Teixeira R, Madeira M, Almeida I, Reis L, Siserman A, Dinis P, Dias L, Ramos AP, Goncalves L, Wan FW, Sawaki DS, Dubois-Rande JLDR, Adnot SA, Czibik GC, Derumeaux GD, Ercan G, Tekkesin ILKER, Sahin ST, Cengiz B, Celik G, Demircan S, Aytekin SAIDE, Razvi NA, Nazir SA, Price N, Khan JN, Kanagala P, Singh A, Squire I, Mccann GP, Langel M, Pfeiffer D, Hagendorff A, Ptaszynska-Kopczynska K, Marcinkiewicz-Siemion M, Knapp M, Witkowski M, Musial WJ, Kaminski K, Natali B, D' Anna C, Leonardi B, Secinaro A, Pongiglione G, Rinelli G, Renard S, Michel N, Mancini J, Haentjens J, Sitbon O, Habib G, Imbriaco M, Alcidi G, Santoro C, Buonauro A, Lo Iudice F, Lembo M, Cuocolo A, Trimarco B, Galderisi M, Mora Robles J, Roldan Jimenez MA, Mancisidor MA, De Mora MA, Alnabelsi T, Goykhman I, Koshkelashvili N, Romero-Corral A, Pressman GS, Michalski BW, Kupczynska K, Miskowiec D, Lipiec P, Kasprzak JD, Montoro Lopez N, Refoyo Salicio E, Valbuena Lopez SC, Gonzalez O, Alvarez C, Moreno Yanguela M, Bartha Rasero JL, De La Calle M, Guzman Martinez G, Suarez-Cuenca JA, Merino JA, Gomez Alvarez EB, Delgado LG, Woo YM, Bang WD, Sohn GH, Cheong SS, Yoo SY, Rodriguez Palomares JF, Gutierrez L, Maldonado G, Pineda V, Galian L, Teixido G, Gonzalez Allujas MT, Evangelista A, Garcia Dorado D, Zaremba T, Ekeloef S, Heiberg E, Engblom H, Jensen SE, Sogaard P, Rodriguez Palomares JF, Gutierrez L, Garcia G, Pineda V, Galian L, Teixido G, Gonzalez Allujas MT, Evangelista A, Garcia Dorado D, Dini FL, Galli F, Lattanzi F, Picano E, Marzilli M, Leao S, Moz M, Magalhaes P, Trigo J, Mateus PS, Ferreira A, Moreira JI, De Craene M, Legallois D, Labombarda F, Pellissier A, Sermesant M, Saloux E, Merlo M, Moretti M, Barbati G, Stolfo D, Gigli M, Pinamonti B, Sinagra G, Dores E, Matera A, Innelli P, Innelli P, Lopizzo A, Violini R, Fiorilli R, Cappabianca G, Picano E, Tarsia G, Seo J, Chang HJ, Heo R, Kim IC, Shim CY, Hong GR, Chung N, Melissopoulou MM, Nguyen V, Brochet E, Cimadevilla C, Codogno I, Vahanian A, Messika-Zeitoun D, Pontana F, Vassiliou V, Prasad S, Leclercq C, Samset E, Donal E, Lim DS, Bianchi G, Rossi F, Gianetti J, Marchi F, Cerone E, Nardelli A, Terrazzi M, Solinas M, Maffei S, Pshepiy A, Vasina L, Timofeev E, Reeva S, Zemtsovsky E, Brugger N, Jahren S, De Marchi SF, Seiler C, Jin CN, Tang H, Fan K, Kam K, Yan BP, Yu CM, Lee PW, Reali M, Silvetti E, Salatino T, Mancone M, Pennacchi M, Giordano A, Sardella G, Agati L, Tirado G, Nogales-Romo MT, Marcos-Alberca P, De Agustin A, Almeria C, Rodrigo JL, Garcia Fernandez MA, Macaya C, Perez De Isla L, Mancisidor M, Lara Garcia C, Vivancos R, De Mora M, Petrovic M, Vujisic-Tesic B, Trifunovic D, Boricic-Kostic M, Petrovic I, Draganic G, Petrovic O, Tomic-Dragovic M, Furlan T, Ambrozic J, Mohorko Pleskovic PN, Bunc M, Ribeiras R, Abecasis J, Andrade MJ, Mendes M, Ramakrishnan S, Gupta SK, Juneja R, Kothari SS, Zaleska M, Segiet A, Chwesiuk S, Kroc A, Kosior DA, Andreini D, Solbiati A, Guglielmo M, Mushtaq S, Baggiano A, Beltrama V, Rota C, Guaricci AI, Pepi M, Pons Llinares J, Asmarats Serra L, Pericas Ramis P, Caldes Llull O, Grau Sepulveda A, Frontera G, Vaquer Segui A, Noris M, Bethencourt Gonzalez A, Climent Paya V, Martinez Moreno M, Saura D, Oliva MJ, Sanchez Quinones J, Garcia Honrubia A, Valdes M, De La Morena G, Terricabras M, Costabel JP, Ronderos R, Evangelista A, Venturini C, Galve E, Nemes A, Neubauer S, Rahman Haley S, Banner N, Teixeira R, Caetano F, Almeida I, Trigo J, Botelho A, Silva J, Nascimento J, Goncalves L, Tesic M, Jovanovic I, Petrovic O, Boricic-Kostic M, Dragovic M, Petrovic M, Stepanovic J, Banovic M, Vujisic-Tesic B, Guergelcheva V, Chamova T, Sarafov S, Tournev I, Denchev S, Ikonomidis I, Psarogiannakopoulos P, Tsirigotis P, Paraskevaidis I, Lekakis J, Pelliccia A, Natali BM, Cameli M, Focardi M, Bonifazi M, Mondillo S, Lima C, Assed L, Kalil Filho R, Mady C, Bochi EA, Salemi VMC, Targher G, Valbusa F, Rossi A, Lanzoni L, Lipari P, Zenari L, Molon G, Canali G, Barbieri E, Li L, Craft M, Nanda M, Lorenzo JM, Kutty S, Bombardini T, Sparla S, Di Tommaso C, Losito M, Incampo E, Maccherini M, Mondillo S, Werther Evaldsson A, Radegran G, Stagmo M, Waktare J, Roijer A, Meurling CJ, Hui W, Meijboom FJ, Bijnens B, Dragulescu A, Mertens L, Friedberg MK, Sensoy B, Suleymanoglu M, Akin Y, Sahan E, Sasmaz H, Pasca L, Buzdugan E, Chis B, Stoicescu L, Lynce FC, Smith KL, Mete M, Isaacs C, Viapiana O, Di Nora C, Ognibeni F, Fracassi E, Giollo A, Mazzone C, Faganello G, Di Lenarda A, Rossini M, Galrinho A, Branco L, Timoteo AT, Rodrigues I, Daniel P, Rosa S, Ferreira L, Ferreira R, Polak L, Krauza G, Stokfisz K, Zielinska M, Branco LM, Galrinho A, Mota Carmo M, Teresa Timoteo A, Aguiar Rosa S, Abreu J, Pinto Teixeira P, Viveiros Monteiro A, Cruz Ferreira R, Peeraphatdit T, Chaiteerakij R, Klarich KW, Masia S, Necas J, Nistri S, Negri F, Barbati G, Cioffi G, Russo G, Mazzone C, Faganello G, Pandullo C, Di Lenarda A, Durante A, Rovelli E, Genchi V, Trabattoni L, Zerboni SC, Cattaneo L, Butti E, Ferrari G, Luneva E, Mitrofanova L, Uspensky V, Zemtsovsky E, Kasprzak JD, Rosner S, Karl M, Ott I, Sonne C, Ali Lahmar HM, Hammou L, Forsey J, Gowing L, Miller F, Ramanujam P, Stuart AG, Williams CA, Bandera F, Pellegrino M, Carbone F, Labate V, Alfonzetti E, Guazzi M, Patel NR, Raju P, Beale L, Brickley G, Lloyd GW, Fernandez-Golfin C, Gonzalez A, Rincon LM, Hinojar R, Garcia A, Megias A, Jimenez-Nacher JJ, Moya JL, Zamorano JL, Molon G, Canali G, Bonapace S, Chiampan A, Albrigi L, Barbieri E, Noris Mora M, Rodriguez Fernandez A, Exposito Pineda C, Grande C, Gonzalez Colino R, Macaya Ten F, Fernandez Vazquez X, Fortuny Frau E, Bethencourt Gonzalez A, Karvandi M, Blaszczyk R, Zarczuk R, Brzozowski W, Janowski M, Wysokinski A, Stanczyk B, Myftiu S, Teferici D, Quka A, Dado E, Djamandi J, Kresto L, Duka A, Kristo A, Balla I, Issa Z, Moiduddin N, Siblini G, Bulbul Z, Abid L, Abid D, Kammoun S, Rush E, Craft M, Goodwin J, Kreikemeier R, Cantinotti M, Kutty S, Zolaly MA, Khoshhal SQ, El-Harbi K, Tarawah A, Al-Hawsawi Z, Al-Mozainy I, Bakhoum SWG, Nabil MN, Elebrashy IN, Chinali M, Albanese S, Carotti A, Iacobelli R, Esposito C, Secinaro A, Moscogiuri G, Pasquini L, Malvezzi Caracciolo M, Bianchi RM, Caso P, Arenga F, Riegler L, Scarafile R, D'andrea A, Russo MG, Calabro' P, Simic DS, Peric VP, Mujovic NM, Marinkovic MM, Jankovic NJ, Shim A, Wejner-Mik P, Kasprzak JD, Lipiec P, Jain N, Kharwar R, Saran RK, Narain VS, Dwivedi SK, Sethi R, Chandra S, Pradhan A, Safal S, Marchetti MF, Cacace C, Congia M, Nissardi V, Ruscazio M, Meloni L, Montisci R, Gallego Sanchez G, Calero S, Portero JJ, Tercero A, Garcia JC, Barambio M, Martinez Lazaro R, Meretta AH, Perea GO, Belcastro F, Aguirre E, De Luca I, Henquin R, Masoli O. Poster session 2THE IMAGING EXAMINATIONP536Appropriate use criteria of transthoracic echocardiography and its clinical impact: a continuous challengeP537Implementation of proprietary plug-ins in the DICOM-based computerized echo reporting system fuels the use of 3D echo and deformation imaging in the clinical routine of a multivendor laboratoryP538Exercise stress echocardiography appropriate use criteria: real-life cases classification ease and agreement among cardiologistsANATOMY AND PHYSIOLOGY OF THE HEART AND GREAT VESSELSP539Functional capacity in older people with normal ejection fraction correlates with left ventricular functional reserve and carotid-femoral pulse wave velocity but not with E/e and augmentation indexP540Survey of competency of practitioners for diagnosis of acute cardiopulmonary diseases manifest on chest x-rayASSESSMENT OF DIAMETERS, VOLUMES AND MASSP541Left atrium remodeling in dialysis patients with normal ejection fractionP542The prediction of postinfarction left ventricular remodeling and the role of of leptin and MCP-1 in regard to the presence of metabolic syndromeP543Ascending aorta and common carotid artery: diameters and stiffness in a group of 584 healthy subjectsAssessments of haemodynamicsP544Alternate echo parameters in patients without estimable RVSPAssessment of systolic functionP545Reduced contractile performance in heart failure with preserved ejection fraction: determination using novel preload-adjusted maximal left ventricular ejection forceP546Left ventricular dimensions and prognosis in acute coronary syndromesP547Time course of myocardial alterations in a murine model of high fat diet: A strain rate imaging studyP548Subclinical left ventricular systolic dysfunction in patients with premature ventricular contractionsP549Global myocardial strain by CMR-based feature tracking (FT) and tagging to predict development of severe left ventricular systolic dysfunction after acute st-elevation myocardial infarctionP550Echocardiographic analysis of left and right ventricular function in patients after mitral valve reconstructionP551The role of regional longitudinal strain assessment in predicting response to cardiac resynchronization therapy in patients with left ventricular systolic dysfunction and left bundle branch blockP552Speckle tracking automatic border detection improves echocardiographic evaluation of right ventricular systolic function in repaired tetralogy of fallot patients: comparison with MRI findingsP553Echocardiography: a reproducible and relevant tool in pah? intermediate results of the multicentric efort echogardiographic substudy (evaluation of prognostic factors and therapeutic targets in pah)Assessment of diastolic functionP554Relationship between left ventricular filling pressures and myocardial fibrosis in patients with uncomplicated arterial hypertensionP555Cardiac rehabilitation improves echocardiographic parameters of diastolic function in patients with ischemic heart diseaseP556Diastolic parameters in the calcified mitral annulusP557Biomarkers and echocardiography - combined weapon to diagnose and prognose heart failure with and without preserved ejection fractionP558Diastolic function changes of the maternal heart in twin and singleton pregnancyIschemic heart diseaseP559Syntax score as predictor for the correlation between epicardial adipose tissue and the severity of coronary lesions in patients with significant coronary diseaseP560Impact of strain analysis in ergonovine stress echocardiography for diagnosis vasospastic anginaP561Cardiac magnetic resonance tissue tracking: a novel method to predict infarct transmurality in acute myocardial infarctionP562Infarct size is correlated to global longitudinal strain but not left ventricular ejection fraction in the early stage of acute myocardial infarctionP563Magnetic resonance myocardial deformation assessment with tissue tracking and risk stratification in acute myocardial infarction patientsP564Increase in regional end-diastolic wall thickness by transthoracic echocardiography as a biomarker of successful reperfusion in anterior ST elevation acute myocardial infarctionP565Mitral regurgitation is associated with worse long-term prognosis in ST-segment elevation myocardial infarction treated with primary percutaneous coronary interventionP566Statistical significance of 3D motion and deformation indexes for the analysis of LAD infarctionHeart valve DiseasesP567Paradoxical low gradient aortic stenosis: echocardiographic progression from moderate to severe diseaseP568The beneficial effects of TAVI in mitral insufficiencyP569Impact of thoracic aortic calcification on the left ventricular hypertrophy and its regression after aortic valve replacement in patients with severe aortic stenosisP570Additional value of exercise-stress echocardiography in asymptomatic patients with aortic valve stenosisP571Valvulo-arterial impedance in severe aortic stenosis: a dual imaging modalities studyP572Left ventricular mechanics: novel tools to evaluate left ventricular performance in patients with aortic stenosisP573Comparison of long-term outcome after percutaneous mitral valvuloplasty versus mitral valve replacement in moderate to severe mitral stenosis with left ventricular dysfunctionP574Incidence of de novo left ventricular dysfunction in patient treated with aortic valve replacement for severe aortic regurgitationP575Transforming growth factor-beta dependant progression of the mitral valve prolapseP576Quantification of mitral regurgitation with multiple jets: in vitro validation of three-dimensional PISA techniqueP577Impaired pre-systolic contraction and saddle-shape deepening of mitral annulus contributes to atrial functional regurgitation: a three-dimensional echocardiographic studyP578Incidence and determinants of left ventricular (lv) reverse remodeling after MitraClip implantation in patients with moderate-to severe or severe mitral regurgitation and reduced lv ejection fractionP579Severe functional tricuspid regurgitation in rheumatic heart valve disease. New insights from 3D transthoracic echocardiographyP58015 years of evolution of the etiologic profile for prosthetic heart valve replacement through an echocardiography laboratoryP581The role of echocardiography in the differential diagnosis of prolonged fever of unknown originP582Predictive value for paravalvular regurgitation of 3-dimensional anatomic aortic annulus shape assessed by multidetector computed tomography post-transcatheter aortic valve replacementP583The significance and advantages of echo and CT imaging & measurement at transcatherter aortic valve implantation through the left common carotid accessP584Comparison of the self-expandable Medtronic CoreValve versus the balloon-expandable Edwards SAPIEN bioprostheses in high-risk patients undergoing transfemoral aortic valve implantationP585The impact of transcatheter aortic valve implantation on mitral regurgitation severityP586Echocardiographic follow up of children with valvular lesions secondary to rheumatic heart disease: Data from a prospective registryP587Valvular heart disease and different circadian blood pressure profilesCardiomyopathiesP588Comparison of transthoracic echocardiography versus cardiac magnetic for implantable cardioverter defibrillator therapy in primary prevention strategy dilated cardiomyopathy patientsP589Incidence and prognostic significance of left ventricle reverse remodeling in a cohort of patients with idiopathic dilated cardiomyopathyP590Early evaluation of diastolic function in fabry diseaseP591Echocardiographic predictors of atrial fibrillation development in hypertrophic cardiomyopathyP592Altered Torsion mechanics in patients with hypertrophic cardiomyopathy: LVOT-obstruction is the topdog?P593Prevention of sudden cardiac death in hypertrophic cardiomyopathy: what has changed in the guidelines?P594Coronary microcirculatory function as determinator of longitudinal systolic left ventricular function in hypertrophic cardiomyopathyP595Detection of subclinical myocardial dysfunction by tissue Doppler ehocardiography in patients with muscular dystrophiesP596Speckle tracking myocardial deformation analysis and three dimensional echocardiography for early detection of chemotherapy induced cardiac dysfunction in bone marrow transplantation patientsP597Left ventricular non compaction or hypertrabeculation: distinguishing between physiology and pathology in top-level athletesP598Role of multi modality imaging in familiar screening of Danon diseaseP599Early impairment of global longitudinal left ventricular systolic function independently predicts incident atrial fibrillation in type 2 diabetes mellitusP600Fetal cardiovascular programming in maternal diabetes mellitus and obesity: insights from deformation imagingP601Longitudinal strain stress echo evaluation of aged marginal donor hearts: feasibility in the Adonhers project.P602Echocardiographic evaluation of left ventricular size and function following heart transplantation - Gender mattersSystemic diseases and other conditionsP603The impact of septal kinetics on adverse ventricular-ventricular interactions in pulmonary stenosis and pulmonary arterial hypertensionP604Improvement in right ventricular mechanics after inhalation of iloprost in pulmonary hypertensionP605Does the treatment of patients with metabolic syndrome correct the right ventricular diastolic dysfunction?P606Predictors of altered cardiac function in breast cancer survivors who were treated with anthracycline-based therapyP607Prevalence and factors related to left ventricular systolic dysfunction in asymptomatic patients with rheumatoid arthritis: a prospective tissue-doppler echocardiography studyP608Diastolic and systolic left ventricle dysfunction presenting different prognostic implications in cardiac amyloidosisP609Diagnostic accuracy of Bedside Lung Ultrasonography in Emergency (BLUE) protocol for the diagnosis of pulmonary embolismP610Right ventricular systolic dysfunction and its incidence in breast cancer patients submitted to anthracycline therapyP611Right ventricular dysfunction is an independent predictor of survival among cirrhotic patients undergoing liver transplantCongenital heart diseaseP612Hypoplasia or absence of posterior leaflet: a rare congenital anomaly of the mitral valveP613ECHO screening for Barlow disease in proband's relativesDiseases of the aortaP614Aortic size distribution and prognosis in an unselected population of patients referred for standard transthoracic echocardiographyP615Abdominal aorta aneurysm ultrasonographic screening in a large cohort of asympromatic volounteers in an Italian urban settingP616Thoracic aortic aneurysm and left ventricular systolic functionStress echocardiographyP617Wall motion score index, systolic mitral annulus velocity and left ventricular mass predicted global longitudinal systolic strain in 238 patients examined by stress echocardiographyP618Prognostic parameters of exercise-induced severe mitral valve regurgitation and exercise-induced systolic pulmonary hypertensionP619Risk stratification after myocardial infarction: prognostic value of dobutamine stress echocardiographyP620relationship between LV and RV myocardial contractile reserve and metabolic parameters during incremental exercise and recovery in healthy children using 2-D strain analysisP621Increased peripheral extraction as a mechanism compensatory to reduced cardiac output in high risk heart failure patients with group 2 pulmonary hypertension and exercise oscillatory ventilationP622Can exercise induced changes in cardiac synchrony predict response to CRT?Transesophageal echocardiographyP623Fully-automated software for mitral valve assessment in chronic mitral regurgitation by three-dimensional transesophageal echocardiographyP624Real-time 3D transesophageal echocardiography provides more accurate orifice measurement in percutaneous transcatheter left atrial appendage closureP625Percutaneous closure of left atrial appendage: experience of 36 casesReal-time three-dimensional TEEP626Real-time three-dimensional transesophageal echocardiography during pulmonary vein cryoballoon ablation for atrial fibrilationP627Three dimensional ultrasound anatomy of intact mitral valve and in the case of type 2 disfunctionTissue Doppler and speckle trackingP629Left ventricle wall motion tracking from echocardiographic images by a non-rigid image registrationP630The first experience with the new prototype of a robotic system for remote echocardiographyP631Non-invasive PCWP influence on a loop diuretics regimen monitoring model in ADHF patients.P632Normal range of left ventricular strain, dimensions and ejection fraction using three-dimensional speckle-tracking echocardiography in neonatesP633Circumferential ascending aortic strain: new parameter in the assessment of arterial stiffness in systemic hypertensionP634Aortic vascular properties in pediatric osteogenesis imperfecta: a two-dimensional echocardiography derived aortic strain studyP635Assessment of cardiac functions in children with sickle cell anemia: doppler tissue imaging studyP636Assessment of left ventricular function in type 1 diabetes mellitus patients by two-dimensional speckle tracking echocardiography: relation to duration and control of diabetesP637A study of left ventricular torsion in l-loop ventricles using speckle-tracking echocardiographyP638Despite No-Reflow, global and regional longitudinal strains assessed by two-dimensional speckle tracking echocardiography are predictive indexes of left ventricular remodeling in patients with STEMIP639The function of reservoir of the left atrium in patients with medicaly treated arterial hypertensionP640The usefulness of speckle tracking analysis for predicting the recovery of regional systolic function after myocardial infarctionP641Two dimensional speckle tracking echocardiography in assessment of left ventricular systolic function in patients with rheumatic severe mitral regurgitation and normal ejection fractionP642The prediction of left-main and tripple vessel coronary artery disease by tissue doppler based longitudinal strain and strain rate imagingP643Role of speckle tracking in predicting arrhythmic risk and occurrence of appropriate implantable defibrillator Intervention in patients with ischemic and non-ischemic cardiomyopathyComputed Tomography & Nuclear CardiologyP644Cardiac adrenergic activity in patients with nonischemic dilated cardiomyopathy. Correlation with echocardiographyP645Different vascular territories and myocardial ischemia, there is a gradient of association? Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kim M, Kim M, Park SJ, Lee C, Lim DS. Role of Angiomotin-like 2 mono-ubiquitination on YAP inhibition. EMBO Rep 2015; 17:64-78. [PMID: 26598551 DOI: 10.15252/embr.201540809] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Accepted: 10/20/2015] [Indexed: 12/19/2022] Open
Abstract
LATS1/2 (large tumor suppressor) kinases and the Angiomotin family proteins are potent inhibitors of the YAP (yes-associated protein) oncoprotein, but the underlying molecular mechanism is not fully understood. Here, we report for the first time that USP9X is a deubiquitinase of Angiomotin-like 2 (AMOTL2) and that AMOTL2 mono-ubiquitination is required for YAP inhibition. USP9X knockdown increased the LATS-mediated phosphorylation of YAP and decreased the transcriptional output of YAP. Conversely, over-expression of USP9X reactivated YAP in densely cultured cells. Both genetic and biochemical approaches identified AMOTL2 as a target of USP9X. AMOTL2 was found to be ubiquitinated at K347 and K408, which both reside in the protein's coiled-coil domain. The AMOTL2 K347/408R mutant, which cannot be ubiquitinated, was impaired in its ability to inhibit YAP. Furthermore, ubiquitinated AMOTL2 can bind to the UBA domain of LATS kinase, and this domain is required for the function of LATS. Our results provide novel insights into the activation mechanisms of core Hippo pathway components.
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Affiliation(s)
- Miju Kim
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Minchul Kim
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Seong-Jun Park
- Center for Theragnosis, Biomedical Research Institute Korea Institute of Science and Technology (KIST), Seoul, Korea
| | - Cheolju Lee
- Center for Theragnosis, Biomedical Research Institute Korea Institute of Science and Technology (KIST), Seoul, Korea Department of Biological Chemistry, University of Science and Technology, Daejeon, Korea
| | - Dae-Sik Lim
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
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Park C, Lee TJ, Bhang SH, Liu F, Nakamura R, Oladipupo SS, Pitha-Rowe I, Capoccia B, Choi HS, Kim TM, Urao N, Ushio-Fukai M, Lee DJ, Miyoshi H, Kim BS, Lim DS, Apte RS, Ornitz DM, Choi K. Injury-Mediated Vascular Regeneration Requires Endothelial ER71/ETV2. Arterioscler Thromb Vasc Biol 2015; 36:86-96. [PMID: 26586661 DOI: 10.1161/atvbaha.115.306430] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Accepted: 11/07/2015] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Comprehensive understanding of the mechanisms regulating angiogenesis might provide new strategies for angiogenic therapies for treating diverse physiological and pathological ischemic conditions. The E-twenty six (ETS) factor Ets variant 2 (ETV2; aka Ets-related protein 71) is essential for the formation of hematopoietic and vascular systems. Despite its indispensable function in vessel development, ETV2 role in adult angiogenesis has not yet been addressed. We have therefore investigated the role of ETV2 in vascular regeneration. APPROACH AND RESULTS We used endothelial Etv2 conditional knockout mice and ischemic injury models to assess the role of ETV2 in vascular regeneration. Although Etv2 expression was not detectable under steady-state conditions, its expression was readily observed in endothelial cells after injury. Mice lacking endothelial Etv2 displayed impaired neovascularization in response to eye injury, wounding, or hindlimb ischemic injury. Lentiviral Etv2 expression in ischemic hindlimbs led to improved recovery of blood perfusion with enhanced vessel formation. After injury, fetal liver kinase 1 (Flk1), aka VEGFR2, expression and neovascularization were significantly upregulated by Etv2, whereas Flk1 expression and vascular endothelial growth factor response were significantly blunted in Etv2-deficient endothelial cells. Conversely, enforced Etv2 expression enhanced vascular endothelial growth factor-mediated endothelial sprouting from embryoid bodies. Lentiviral Flk1 expression rescued angiogenesis defects in endothelial Etv2 conditional knockout mice after hindlimb ischemic injury. Furthermore, Etv2(+/-); Flk1(+/-) double heterozygous mice displayed a more severe hindlimb ischemic injury response compared with Etv2(+/-) or Flk1(+/-) heterozygous mice, revealing an epistatic interaction between ETV2 and FLK1 in vascular regeneration. CONCLUSIONS Our study demonstrates a novel obligatory role for the ETV2 in postnatal vascular repair and regeneration.
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Affiliation(s)
- Changwon Park
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Tae-Jin Lee
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Suk Ho Bhang
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Fang Liu
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Rei Nakamura
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Sunday S Oladipupo
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Ian Pitha-Rowe
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Benjamin Capoccia
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Hong Seo Choi
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Tae Min Kim
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Norifumi Urao
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Masuko Ushio-Fukai
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Dong Jun Lee
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Hiroyuki Miyoshi
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Byung-Soo Kim
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Dae-Sik Lim
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Rajendra S Apte
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - David M Ornitz
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
| | - Kyunghee Choi
- Department of Pediatrics (C.P., H.S.C.), Children's Heart Research and Outcomes Center (C.P.), Molecular and Systems Pharmacology Program (C.P.), Emory University School of Medicine, Atlanta; Department of Pharmacology, College of Medicine, University of Illinois at Chicago, IL (T.M.K., N.U., M.U-F.); School of Chemical Engineering, Sungkyunkwan University, Korea (S.H.B.); School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea (B-S.K.); Korea Advanced Institute of Science and Technology, Korea (D.J.L., D-S.L.); RIKEN BioResource Center, Japan (H.M.); the Departments of Pathology and Immunology (T-J.L., F.L., K.C.), Ophthalmology and Visual Sciences (R.N., I.P-R., R.S.A.), Developmental Biology (S.S.O., D.M.O.), Biochemistry and Molecular Biophysics (B. C.), Developmental, Regenerative, and Stem cell Biology Program (D.M.O., R.S.A., K.C.), Washington University School of Medicine, MO
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Lee J, Youn BU, Kim K, Kim JH, Lee DH, Seong S, Kim I, Han SH, Che X, Choi JY, Park YW, Kook H, Kim KK, Lim DS, Kim N. Mst2 Controls Bone Homeostasis by Regulating Osteoclast and Osteoblast Differentiation. J Bone Miner Res 2015; 30:1597-607. [PMID: 25761670 DOI: 10.1002/jbmr.2503] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 02/24/2015] [Accepted: 03/05/2015] [Indexed: 01/29/2023]
Abstract
Mammalian sterile 20-like kinase 2 (Mst2) plays a central role in the Hippo pathway, controlling cell proliferation, differentiation, and apoptosis during development. However, the roles of Mst2 in osteoclast and osteoblast development are largely unknown. Here, we demonstrate that mice deficient in Mst2 exhibit osteoporotic phenotypes with increased numbers of osteoclasts and decreased numbers of osteoblasts as shown by micro-computed tomography (µCT) and histomorphometric analyses. Osteoclast precursors lacking Mst2 exhibit increased osteoclastogenesis and Nfatc1, Acp5, and Oscar expression in response to receptor activator of NF-κB ligand (RANKL) exposure. Conversely, Mst2 overexpression in osteoclast precursors leads to the inhibition of RANKL-induced osteoclast differentiation. Osteoblast precursors deficient in Mst2 exhibit attenuated osteoblast differentiation and function by downregulating the expression of Runx2, Alpl, Ibsp, and Bglap. Conversely, ectopic expression of Mst2 in osteoblast precursors increases osteoblastogenesis. Finally, we demonstrate that the NF-κB pathway is activated by Mst2 deficiency during osteoclast and osteoblast development. Our findings suggest that Mst2 is involved in bone homeostasis, functioning as a reciprocal regulator of osteoclast and osteoblast differentiation through the NF-κB pathway.
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Affiliation(s)
- Jongwon Lee
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Bang Ung Youn
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Kabsun Kim
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Jung Ha Kim
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Da-Hye Lee
- Department of Biological Sciences, National Creative Research Initiatives Center, Graduate School of Nanoscience and Technology (WCU), Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Semun Seong
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Inyoung Kim
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Seung-Hee Han
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Xiangguo Che
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Je-Yong Choi
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Yong-Wook Park
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Hyun Kook
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Kyung Keun Kim
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Dae-Sik Lim
- Department of Biological Sciences, National Creative Research Initiatives Center, Graduate School of Nanoscience and Technology (WCU), Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Nacksung Kim
- Department of Pharmacology, Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju, Republic of Korea
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Kim SK, Kim H, Koh GY, Lim DS, Yu DY, Kim MD, Park MS, Lim JS. Mouse Hepatic Tumor Vascular Imaging by Experimental Selective Angiography. PLoS One 2015; 10:e0131687. [PMID: 26131558 PMCID: PMC4489182 DOI: 10.1371/journal.pone.0131687] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 06/05/2015] [Indexed: 12/18/2022] Open
Abstract
PURPOSE Human hepatocellular carcinoma (HCC) has unique vascular features, which require selective imaging of hepatic arterial perfusion and portal venous perfusion with vascular catheterization for sufficient evaluation. Unlike in humans, vessels in mice are too small to catheterize, and the importance of separately imaging the feeding vessels of tumors is frequently overlooked in hepatic tumor models. The purpose of this study was to perform selective latex angiography in several mouse liver tumor models and assess their suitability. MATERIALS AND METHODS In several ectopic (Lewis lung carcinoma, B16/F10 melanoma cell lines) and spontaneous liver tumor (Albumin-Cre/MST1fl/fl/MST2fl/fl, Albumin-Cre/WW45fl/fl, and H-ras12V genetically modified mouse) models, the heart left ventricle and/or main portal vein of mice was punctured, and latex dye was infused to achieve selective latex arteriography and/or portography. RESULTS H-ras12V transgenic mice (a HCC and hepatic adenoma model) developed multiple liver nodules that displayed three different perfusion patterns (portal venous or hepatic artery perfusion predominant, mixed perfusion), indicating intra-tumoral vascular heterogeneity. Selective latex angiography revealed that the Lewis lung carcinoma implant model and the Albumin-Cre/WW45fl/fl model reproduced conventional angiography findings of human HCC. Specifically, these mice developed tumors with abundant feeding arteries but no portal venous perfusion. CONCLUSION Different hepatic tumor models showed different tumor vessel characteristics that influence the suitability of the model and that should be considered when designing translational experiments. Selective latex angiography applied to certain mouse tumor models (both ectopic and spontaneous) closely simulated typical characteristics of human HCC vascular imaging.
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Affiliation(s)
- Sang Kyum Kim
- Department of Pathology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Honsoul Kim
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Republic of Korea
- * E-mail:
| | - Gou Young Koh
- National Research Laboratory of Vascular Biology and Stem Cell, Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Dae-Sik Lim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Dae-Yeul Yu
- Aging Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Man Deuk Kim
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Mi-Suk Park
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joon Seok Lim
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Republic of Korea
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Choi S, Lim DS, Chung J. Feeding and Fasting Signals Converge on the LKB1-SIK3 Pathway to Regulate Lipid Metabolism in Drosophila. PLoS Genet 2015; 11:e1005263. [PMID: 25996931 PMCID: PMC4440640 DOI: 10.1371/journal.pgen.1005263] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 05/05/2015] [Indexed: 12/26/2022] Open
Abstract
LKB1 plays important roles in governing energy homeostasis by regulating AMP-activated protein kinase (AMPK) and other AMPK-related kinases, including the salt-inducible kinases (SIKs). However, the roles and regulation of LKB1 in lipid metabolism are poorly understood. Here we show that Drosophila LKB1 mutants display decreased lipid storage and increased gene expression of brummer, the Drosophila homolog of adipose triglyceride lipase (ATGL). These phenotypes are consistent with those of SIK3 mutants and are rescued by expression of constitutively active SIK3 in the fat body, suggesting that SIK3 is a key downstream kinase of LKB1. Using genetic and biochemical analyses, we identify HDAC4, a class IIa histone deacetylase, as a lipolytic target of the LKB1-SIK3 pathway. Interestingly, we found that the LKB1-SIK3-HDAC4 signaling axis is modulated by dietary conditions. In short-term fasting, the adipokinetic hormone (AKH) pathway, related to the mammalian glucagon pathway, inhibits the kinase activity of LKB1 as shown by decreased SIK3 Thr196 phosphorylation, and consequently induces HDAC4 nuclear localization and brummer gene expression. However, under prolonged fasting conditions, AKH-independent signaling decreases the activity of the LKB1-SIK3 pathway to induce lipolytic responses. We also identify that the Drosophila insulin-like peptides (DILPs) pathway, related to mammalian insulin pathway, regulates SIK3 activity in feeding conditions independently of increasing LKB1 kinase activity. Overall, these data suggest that fasting stimuli specifically control the kinase activity of LKB1 and establish the LKB1-SIK3 pathway as a converging point between feeding and fasting signals to control lipid homeostasis in Drosophila. Liver kinase B1 (LKB1), a serine/threonine kinase, controls 14 different AMP-activated protein kinase (AMPK) family kinases, including salt-inducible kinase 3 (SIK3), suggesting that it plays a variety of roles. Using the fruit fly as an in vivo model system, we reveal that LKB1 kinase activity is critical for lipid storage and controls the lipolysis pathway in the fat body, which is equivalent to mammalian adipose and liver tissue. We find that the lipolytic defects of LKB1 mutants are rescued by the expression of constitutively active SIK3 in the fat body. We show that LKB1 and SIK3 regulate lipid storage by altering the gene expression of brummer, the Drosophila homolog of human adipose triglyceride lipase (ATGL), a critical lipolytic gene. We also identify that LKB1-SIK3 signaling controls the nuclear and cytosolic localization of the class IIa deacetylase HDAC4 via SIK3-dependent phosphorylation in feeding and fasting conditions, respectively. Collectively, these data suggest that the LKB1-SIK3-HDAC4 pathway plays a critical role in maintaining fly lipid homeostasis in response to dietary conditions.
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Affiliation(s)
- Sekyu Choi
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejon, Republic of Korea
- National Creative Research Initiatives Center for Energy Homeostasis Regulation, Seoul National University, Seoul, Republic of Korea
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
| | - Dae-Sik Lim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejon, Republic of Korea
- National Creative Research Initiatives Center for Cell Division and Differentiation, Korea Advanced Institute of Science and Technology, Daejon, Republic of Korea
| | - Jongkyeong Chung
- National Creative Research Initiatives Center for Energy Homeostasis Regulation, Seoul National University, Seoul, Republic of Korea
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul, Republic of Korea
- * E-mail:
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49
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Kim M, Kim T, Johnson RL, Lim DS. Transcriptional co-repressor function of the hippo pathway transducers YAP and TAZ. Cell Rep 2015; 11:270-82. [PMID: 25843714 DOI: 10.1016/j.celrep.2015.03.015] [Citation(s) in RCA: 203] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 02/02/2015] [Accepted: 03/05/2015] [Indexed: 12/12/2022] Open
Abstract
YAP (yes-associated protein) and TAZ are oncogenic transcriptional co-activators downstream of the Hippo tumor-suppressor pathway. However, whether YAP and/or TAZ (YAP/TAZ) engage in transcriptional co-repression remains relatively unexplored. Here, we directly demonstrated that YAP/TAZ represses numerous target genes, including tumor-suppressor genes such as DDIT4 (DNA-damage-inducible transcript 4) and Trail (TNF-related apoptosis-inducing ligand). Mechanistically, the repressor function of YAP/TAZ requires TEAD (TEA domain) transcription factors. A YAP/TAZ-TEAD complex recruits the NuRD complex to deacetylate histones and alters nucleosome occupancy at target genes. Functionally, repression of DDIT4 and Trail by YAP/TAZ is required for mTORC1 (mechanistic target of rapamycin complex 1) activation and cell survival, respectively. Our demonstration of the transcriptional co-repressor activity of YAP/TAZ opens a new avenue for understanding the Hippo signaling pathway.
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Affiliation(s)
- Minchul Kim
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea.
| | - Taekhoon Kim
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea
| | - Randy L Johnson
- Department of Cancer Biology, University of Texas, M.D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Dae-Sik Lim
- National Creative Research Center for Cell Division and Differentiation, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea.
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50
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Mo JS, Meng Z, Kim YC, Park HW, Hansen CG, Kim S, Lim DS, Guan KL. Cellular energy stress induces AMPK-mediated regulation of YAP and the Hippo pathway. Nat Cell Biol 2015; 17:500-10. [PMID: 25751140 PMCID: PMC4380774 DOI: 10.1038/ncb3111] [Citation(s) in RCA: 395] [Impact Index Per Article: 43.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 01/14/2015] [Indexed: 12/15/2022]
Abstract
YAP (Yes-associated protein) is a transcription co-activator in the Hippo tumor suppressor pathway and controls cell growth, tissue homeostasis, and organ size. YAP is inhibited by the kinase Lats, which phosphorylates YAP to induce its cytoplasmic localization and proteasomal degradation. YAP induces gene expression by binding to the TEAD family transcription factors. Dysregulation of the Hippo-YAP pathway is frequently observed in human cancers. Here we show that cellular energy stress induces YAP phosphorylation, in part due to AMPK-dependent Lats activation, thereby inhibiting YAP activity. Moreover, AMPK directly phosphorylates YAP S94, a residue essential for the interaction with TEAD, thus disrupting the YAP-TEAD interaction. AMPK-induced YAP inhibition can suppress oncogenic transformation of Lats-null cells with high YAP activity. Our study establishes a molecular mechanism and functional significance of AMPK in linking cellular energy status to the Hippo-YAP pathway.
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Affiliation(s)
- Jung-Soon Mo
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA
| | - Zhipeng Meng
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA
| | - Young Chul Kim
- Department of Cardiology, Veterans Medical Research Foundation, 3350 La Jolla Village Dr., San Diego, California 92161, USA
| | - Hyun Woo Park
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA
| | - Carsten Gram Hansen
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA
| | - Soohyun Kim
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA
| | - Dae-Sik Lim
- National Creative Research Initiatives Center, Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Republic of Korea
| | - Kun-Liang Guan
- Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA
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