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Chen Y, Liu H, Zou J, Cao G, Li Y, Xing C, Wu J. Exosomal circ_0091741 promotes gastric cancer cell autophagy and chemoresistance via the miR-330-3p/TRIM14/ Dvl2/Wnt/β-catenin axis. Hum Cell 2023; 36:258-75. [PMID: 36323918 DOI: 10.1007/s13577-022-00790-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 09/03/2022] [Indexed: 11/05/2022]
Abstract
The importance of cancer cell-released exosomes in the treatment of various cancers has been well-characterized. The current study aims to examine the potential biological functions of gastric cancer (GC) cell-released exosomes delivering a novel circRNA circ_0091741 in GC and the underlying molecular mechanism. Expression of circ_0091741 was examined in the GC cells, (OXA)-resistant HGC-27 (HGC-27/OXA) cells, and isolated exosomes, after which its downstream miRNA was analyzed. The role and mechanism of the circ_0091741 transmitted by GC cells-derived exosomes in GC cell autophagy and chemoresistance were assessed using various molecular biological methods. A mouse tumor xenograft model was prepared to discern the effect of circ_0091741 on tumorigenesis in vivo. GC cells and their exosomes were characterized by upregulated circ_0091741 expression. circ_0091741 transferred by GC cell-derived exosomes induced the autophagy and OXA resistance of GC cells. circ_0091741 obstructed the binding of miR-330-3p to TRIM14 and increased the expression of TRIM14. TRIM14 could cause activation of the Wnt/β-catenin signaling pathway by stabilizing Dvl2. By this mechanism, the autophagy and OXA resistance of GC cells were augmented. In vivo assay unfolded that orthotopic implantation of exosomal circ_0091741 overexpressed GC cells into nude mice enhanced tumorigenesis. In conclusion, our study emphasized the promotive role of exosomal circ_0091741 in autophagy and chemoresistance of GC cells, thus laying the basis for the development of novel therapeutic targets for GC treatment.
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Zhu L, Yang X, Feng J, Mao J, Zhang Q, He M, Mi Y, Mei Y, Jin G, Zhang H. CYP2E1 plays a suppressive role in hepatocellular carcinoma by regulating Wnt/ Dvl2/β-catenin signaling. J Transl Med 2022; 20:194. [PMID: 35509083 PMCID: PMC9066941 DOI: 10.1186/s12967-022-03396-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 01/25/2022] [Accepted: 04/18/2022] [Indexed: 01/02/2023] Open
Abstract
Objective Knowledge of the role of CYP2E1 in hepatocarcinogenesis is largely based on epidemiological and animal studies, with a primary focus on the role of CYP2E1 in metabolic activation of procarcinogens. Few studies have directly assessed the effects of CYP2E1 on HCC malignant phenotypes. Methods The expression of CYP2E1 in HCC tissues was determined by qRT-PCR, western blotting and immunohistochemistry. Overexpression of CYP2E1 in HCC cell was achieved by lentivirus transfection. The function of CYP2E1 were detected by CCK-8, wound healing, transwell assays, xenograft models and pulmonary metastasis model. TOP/FOPFlash reporter assay, western blotting, functional rescue experiments, Co-immunoprecipitation and reactive oxygen species detection were conducted to reveal the underlying mechanism of the tumor suppressive role of CYP2E1. Results CYP2E1 expression is down-regulated in HCC tissues, and this downregulation was associated with large tumor diameter, vascular invasion, poor differentiation, and shortened patient survival time. Ectopic expression of CYP2E1 inhibits the proliferation, invasion and migration and epithelial-to-mesenchymal transition of HCC cells in vitro, and inhibits tumor formation and lung metastasis in nude mice. Mechanistic investigations show that CYP2E1 overexpression significantly inhibited Wnt/β-catenin signaling activity and decreased Dvl2 expression in HCC cells. An increase in Dvl2 expression restored the malignant phenotype of HCC cells. Notably, CYP2E1 promoted the ubiquitin-mediated degradation of Dvl2 by strengthening the interaction between Dvl2 and the E3 ubiquitin ligase KLHL12 in CYP2E1-stable HCC cells. CYP2E1-induced ROS accumulation was a critical upstream event in the Wnt/β-Catenin pathway in CYP2E1-overexpressing HCC cells. Conclusions These results provide novel insight into the role of CYP2E1 in HCC and the tumor suppressor role of CYP2E1 can be attributed to its ability to manipulate Wnt/Dvl2/β-catenin pathway via inducing ROS accumulation, which provides a potential target for the prevention and treatment of HCC. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12967-022-03396-6.
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Affiliation(s)
- Lili Zhu
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, 100 Kexue Road, Zhengzhou, 450001, Henan, China
| | - Xiaobei Yang
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, 100 Kexue Road, Zhengzhou, 450001, Henan, China
| | - Jingyu Feng
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, 100 Kexue Road, Zhengzhou, 450001, Henan, China
| | - Jian Mao
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou, 450001, China
| | - Qidong Zhang
- Zhengzhou Tobacco Research Institute of China National Tobacco Company, Zhengzhou, 450001, China
| | - Mengru He
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, 100 Kexue Road, Zhengzhou, 450001, Henan, China
| | - Yang Mi
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, 100 Kexue Road, Zhengzhou, 450001, Henan, China
| | - Yingwu Mei
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, 100 Kexue Road, Zhengzhou, 450001, Henan, China
| | - Ge Jin
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, 100 Kexue Road, Zhengzhou, 450001, Henan, China
| | - Haifeng Zhang
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, 100 Kexue Road, Zhengzhou, 450001, Henan, China.
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3
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Kim Y, Kim DY, Zhang H, Bae CR, Seong D, Kim Y, Song J, Kim YM, Kwon YG. DIX domain containing 1 (DIXDC1) modulates VEGFR2 level in vasculatures to regulate embryonic and postnatal retina angiogenesis. BMC Biol 2022; 20:41. [PMID: 35144597 PMCID: PMC8830128 DOI: 10.1186/s12915-022-01240-3] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 01/27/2022] [Indexed: 11/16/2022] Open
Abstract
Background In sprouting angiogenesis, VEGFR2 level is regulated via a fine-tuned process involving various signaling pathways. Other than VEGF/VEGFR2 signaling pathway, Wnt/ β-catenin signaling is also important in vascular development. However, the crosstalk between these two signaling pathways is still unknown to date. In this study, we aimed to investigate the role of DIX domain containing 1 (DIXDC1) in vasculature, facilitating the crosstalk between VEGF/VEGFR2 and Wnt/ β-catenin signaling pathways. Results In mice, DIXDC1 deficiency delayed angiogenesis at the embryonic stage and suppressed neovascularization at the neonatal stage. DIXDC1 knockdown inhibited VEGF-induced angiogenesis in endothelial cells in vitro by downregulating VEGFR2 expression. DIXDC1 bound Dishevelled Segment Polarity Protein 2 (Dvl2) and polymerized Dvl2 stabilizing VEGFR2 protein via its direct interaction. The complex formation and stability of VEGFR2 was potentiated by Wnt signaling. Moreover, hypoxia elevated DIXDC1 expression and likely modulated both canonical Wnt/β-catenin signaling and VEGFR2 stability in vasculatures. Pathological angiogenesis in DIXDC1 knockout mice was decreased significantly in oxygen-induced retinopathy (OIR) and in wound healing models. These results suggest that DIXDC1 is an important factor in developmental and pathological angiogenesis. Conclusion We have identified DIXDC1 as an important factor in early vascular development. These results suggest that DIXDC1 represents a novel regulator of sprouting angiogenesis that links Wnt signaling and VEGFR2 stability and may have a potential role in pathological neovascularization. Supplementary Information The online version contains supplementary material available at 10.1186/s12915-022-01240-3.
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Affiliation(s)
- Yeaji Kim
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Dong Young Kim
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea.,Present address: Division of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
| | - Haiying Zhang
- R&D Department, Curacle Co. Ltd, Seongnam-si, Republic of Korea
| | - Cho-Rong Bae
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Daehyeon Seong
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Yeomyung Kim
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Jaewhan Song
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Young-Myeong Kim
- Vascular System Research Center, Kangwon National University, Chuncheon, Republic of Korea
| | - Young-Guen Kwon
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea.
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4
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Tang F, Cao F, Lu C, He X, Weng L, Sun L. Dvl2 facilitates the coordination of NF-κB and Wnt signaling to promote colitis-associated colorectal progression. Cancer Sci 2021; 113:565-575. [PMID: 34807493 PMCID: PMC8819304 DOI: 10.1111/cas.15206] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 08/01/2021] [Revised: 11/03/2021] [Accepted: 11/08/2021] [Indexed: 12/05/2022] Open
Abstract
Colitis‐associated colorectal cancer (CAC) arises due to prolonged inflammation and has distinct molecular events compared with sporadic colorectal cancer (CRC). Although inflammatory NF‐κB signaling was activated by pro‐inflammatory cytokines (such as TNFα) in early stages of CAC, Wnt/β‐catenin signaling later appears to function as a key regulator of CAC progression. However, the exact mechanism responsible for the cross‐regulation between these 2 pathways remains unclear. Here, we found reciprocal inhibition between NF‐κB and Wnt/β‐catenin signaling in CAC samples, and the Dvl2, an adaptor protein of Wnt/β‐catenin signaling, is responsible for NF‐κB inhibition. Mechanistically, Dvl2 interacts with the C‐terminus of tumor necrosis factor receptor 1 (TNFRI) and mediates TNFRI endocytosis, leading to NF‐κB signal inhibition. In addition, increased infiltration of the pro‐inflammatory cytokine interleukin‐13 (IL‐13) is responsible for upregulating Dvl2 expression through STAT6. Targeting STAT6 effectively decreases Dvl2 levels and restrains colony formation of cancer cells. These findings demonstrate a unique role for Dvl2 in TNFRI endocytosis, which facilitates the coordination of NF‐κB and Wnt to promote CAC progression.
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Affiliation(s)
- Feiyu Tang
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Fuyang Cao
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Can Lu
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiang He
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China
| | - Liang Weng
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China.,Hunan International Science and Technology Collaboration Base of Precision Medicine for Cancer, Changsha, China.,Hunan Provincial Clinical Research Center for Respiratory Diseases, Changsha, China.,Center for Molecular Imaging of Central South University, Xiangya Hospital, Changsha, China
| | - Lunquan Sun
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha, China.,Hunan Provincial Clinical Research Center for Respiratory Diseases, Changsha, China.,Center for Molecular Imaging of Central South University, Xiangya Hospital, Changsha, China.,Institute of Gerontological Cancer Research, National Clinical Research Center for Gerontology, Changsha, China
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5
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Zhang H, Yang X, Zhu L, Li Z, Zuo P, Wang P, Feng J, Mi Y, Zhang C, Xu Y, Jin G, Zhang J, Ye H. ASPM promotes hepatocellular carcinoma progression by activating Wnt/β-catenin signaling through antagonizing autophagy-mediated Dvl2 degradation. FEBS Open Bio 2021; 11:2784-2799. [PMID: 34428354 PMCID: PMC8487047 DOI: 10.1002/2211-5463.13278] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 05/17/2021] [Revised: 07/30/2021] [Accepted: 08/23/2021] [Indexed: 12/23/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most fatal cancers worldwide. In this article, we show that expression of abnormal spindle‐like microcephaly‐associated protein (ASPM) is up‐regulated in liver cancer samples, and this up‐regulation is significantly associated with tumor aggressiveness and reduced survival times of patients. Down‐regulation of ASPM expression inhibits the proliferation, invasion, migration and epithelial‐to‐mesenchymal transition of HCC cells in vitro and inhibits tumor formation in nude mice. ASPM interacts with disheveled‐2 (Dvl2) and antagonizes autophagy‐mediated Dvl2 degradation by weakening the functional interaction between Dvl2 and the lipidated form of microtubule‐associated proteins 1A/1B light chain 3A (LC3II), thereby increasing Dvl2 protein abundance and leading to Wnt/β‐catenin signaling activation in HCC cells. Thus, our results define ASPM as a novel oncoprotein in HCC and indicate that disruption of the Wnt–ASPM–Dvl2–β‐catenin signaling axis might have potential clinical value.
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Affiliation(s)
- Haifeng Zhang
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, China
| | - Xiaobei Yang
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, China
| | - Lili Zhu
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, China
| | - Zhihui Li
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, China
| | - Peipei Zuo
- Academy of Medical Sciences, Zhengzhou University, China
| | - Peng Wang
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, China
| | - Jingyu Feng
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, China
| | - Yang Mi
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, China
| | - Chengjuan Zhang
- Center of Repository, The Affiliated Cancer Hospital of Zhengzhou University, China
| | - Yan Xu
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, China
| | - Ge Jin
- Department of Biochemistry & Molecular Biology, School of Basic Medical Sciences, Zhengzhou University, China
| | | | - Hua Ye
- College of Public Health, Zhengzhou University, China
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6
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Kim SO, Cho KS, Kim BY, Lee KH. Cullin 1 (CUL1) Promotes Primary Ciliogenesis through the Induction of Ubiquitin-Proteasome-Dependent Dvl2 Degradation. Int J Mol Sci 2021; 22:7572. [PMID: 34299191 DOI: 10.3390/ijms22147572] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 12/20/2022] Open
Abstract
Primary cilia are nonmotile cellular signal-sensing antenna-like structures composed of microtubule-based structures that distinguish them from motile cilia in structure and function. Primary ciliogenesis is regulated by various cellular signals, such as Wnt, hedgehog (Hh), and platelet-derived growth factor (PDGF). The abnormal regulation of ciliogenesis is closely related to developing various human diseases, including ciliopathies and cancer. This study identified a novel primary ciliogenesis factor Cullin 1 (CUL1), a core component of Skp1-Cullin-F-box (SCF) E3 ubiquitin ligase complex, which regulates the proteolysis of dishevelled 2 (Dvl2) through the ubiquitin-proteasome system. Through immunoprecipitation-tandem mass spectrometry analysis, 176 Dvl2 interacting candidates were identified, of which CUL1 is a novel Dvl2 modulator that induces Dvl2 ubiquitination-dependent degradation. Neddylation-dependent CUL1 activity at the centrosomes was essential for centrosomal Dvl2 degradation and primary ciliogenesis. Therefore, this study provides a new mechanism of Dvl2 degradation by CUL1, which ultimately leads to primary ciliogenesis, and suggest a novel target for primary cilia-related human diseases.
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7
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Wang C, Zhang R, Wang X, Zheng Y, Jia H, Li H, Wang J, Wang N, Xiang F, Li Y. Silencing of KIF3B Suppresses Breast Cancer Progression by Regulating EMT and Wnt/ β-Catenin Signaling. Front Oncol 2021; 10:597464. [PMID: 33542902 PMCID: PMC7851081 DOI: 10.3389/fonc.2020.597464] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 08/21/2020] [Accepted: 11/30/2020] [Indexed: 01/06/2023] Open
Abstract
Breast cancer is the most common malignant tumors in women. Kinesin family member 3B (KIF3B) is a critical regulator in mitotic progression. The objective of this study was to explore the expression, regulation, and mechanism of KIF3B in 103 cases of breast cancer tissues, 35 metastatic lymph nodes and breast cancer cell lines, including MDA-MB-231, MDA-MB-453, T47D, and MCF-7. The results showed that KIF3B expression was up-regulated in breast cancer tissues and cell lines, and the expression level was correlated with tumor recurrence and lymph node metastasis, while knockdown of KIF3B suppressed cell proliferation, migration, and invasion both in vivo and in vitro. In addition, UALCAN analysis showed that KIF3B expression in breast cancer is increased, and the high expression of KIF3B in breast cancer is associated with poor prognosis. Furthermore, we found that silencing of KIF3B decreased the expression of Dvl2, phospho-GSK-3β, total and nucleus β-catenin, then subsequent down-regulation of Wnt/β-catenin signaling target genes such as CyclinD1, C-myc, MMP-2, MMP-7 and MMP-9 in breast cancer cells. In addition, KIF3B depletion inhibited epithelial mesenchymal transition (EMT) in breast cancer cells. Taken together, our results revealed that KIF3B is up-regulated in breast cancer which is potentially involved in breast cancer progression and metastasis. Silencing KIF3B might suppress the Wnt/β-catenin signaling pathway and EMT in breast cancer cells.
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Affiliation(s)
- Chengqin Wang
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, China.,Department of Pathology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Runze Zhang
- Department of Pathology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Xiao Wang
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yan Zheng
- Department of Pathology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Huiqing Jia
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Haiyan Li
- Department of Pathology, Affiliated Yantai Yuhuangding Hospital, Qingdao University, Qingdao, China
| | - Jin Wang
- Department of Pathology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Ning Wang
- Department of Pathology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Fenggang Xiang
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, China.,Department of Pathology, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Yujun Li
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, China
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8
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Sun M, Gao J, Meng T, Liu S, Chen H, Liu Q, Xing X, Zhao C, Luo Y. Cyclin G2 upregulation impairs migration, invasion, and network formation through RNF123/ Dvl2/JNK signaling in the trophoblast cell line HTR8/SVneo, a possible role in preeclampsia. FASEB J 2020; 35:e21169. [PMID: 33205477 DOI: 10.1096/fj.202001559rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 06/18/2020] [Revised: 10/22/2020] [Accepted: 10/26/2020] [Indexed: 12/31/2022]
Abstract
Disruption of extravillous trophoblast (EVT) migration and invasion is considered to be responsible for pathological placentation in preeclampsia (PE). Cyclin G2 (CCNG2) is an atypical cyclin that inhibits cell cycle progression. However, its biological function and underlying molecular mechanism in PE are poorly understood. In this study, clinical data demonstrated that CCNG2 was significantly upregulated in PE placenta and associated with invasive EVT dysfunction. Additionally, Ccng2 knockout led to an attenuation of PE-like symptoms in the PE mouse model produced via treatment with NG-nitro-L-arginine methyl ester (L-NAME). In vitro, CCNG2 inhibited the migration, invasion, and endothelial-like network formation of human trophoblast cell line HTR8/SVneo. Mechanically, CCNG2 suppressed JNK-dependent Wnt/PCP signaling and its downstream indicators including epithelial-to-mesenchymal transition (EMT) markers and matrix metalloproteinases (MMPs) via promoting the polyubiquitination degradation of dishevelled 2 (Dvl2) protein in HTR8/SVneo cells. We also discovered that the E3 ligase Ring finger protein 123 (RNF123), as a novel CCNG2 target among HTR8/SVneo cells, interacted with Dvl2 and participated in CCNG2-induced polyubiquitination degradation of Dvl2. Moreover, we verified that the treatment of HTR8/SVneo cells with RNF123-specific siRNA improved polyubiquitination-induced degradation of Dvl2 and the activity of Wnt/PCP-JNK signaling mediated by CCNG2. Taken together, our results reveal that the CCNG2/RNF123/Dvl2/JNK axis may be involved in the pathogenesis and progression of PE through trophoblastic cell function modulation, thus probably providing us with new therapeutic strategies for PE treatment.
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Affiliation(s)
- Manni Sun
- The Research Center for Medical Genomics, Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Science, China Medical University, Shenyang, PR China
| | - Jinlan Gao
- The Research Center for Medical Genomics, Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Science, China Medical University, Shenyang, PR China
| | - Tao Meng
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, China Medical University, Shenyang, PR China
| | - Shenghuan Liu
- The Research Center for Medical Genomics, Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Science, China Medical University, Shenyang, PR China
| | - Haiying Chen
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, China Medical University, Shenyang, PR China
| | - Qi Liu
- The Research Center for Medical Genomics, Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Science, China Medical University, Shenyang, PR China
| | - Xuesha Xing
- The Research Center for Medical Genomics, Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Science, China Medical University, Shenyang, PR China
| | - Chenyang Zhao
- The Research Center for Medical Genomics, Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Science, China Medical University, Shenyang, PR China
| | - Yang Luo
- The Research Center for Medical Genomics, Key Laboratory of Medical Cell Biology, Ministry of Education, School of Life Science, China Medical University, Shenyang, PR China
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9
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Esaki N, Enomoto A, Takagishi M, Mizutani Y, Iida T, Ushida K, Shiraki Y, Mii S, Takahashi M. The Daple-CK1ε complex regulates Dvl2 phosphorylation and canonical Wnt signaling. Biochem Biophys Res Commun 2020; 532:406-413. [PMID: 32888647 DOI: 10.1016/j.bbrc.2020.08.066] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 08/17/2020] [Accepted: 08/20/2020] [Indexed: 01/22/2023]
Abstract
The canonical Wnt signaling pathway plays a crucial role in embryonic development, tissue homeostasis and cancer progression. The binding of Wnt ligands to their cognate receptors, the Frizzled (Fzd) family of proteins, recruits Dishevelled segment polarity protein (Dvl) to the plasma membrane and induces its phosphorylation via casein kinase 1 (CK1), which leads to the activation of β-catenin. Previous studies showed that Dishevelled-associating protein with a high frequency of leucine residues (Daple) is an important component of the Wnt signaling pathway and essential for Dvl phosphorylation. However, the mechanism by which Daple promotes CK1-mediated phosphorylation of Dvl is not fully understood. In this study, we found that Daple overexpression induced CK1ε-mediated Dvl2 phosphorylation at threonine 224 (Thr224). A Daple mutant (Daple ΔGCV) that lacks a carboxyl-terminal motif to associate with Dvl, retained the ability to interact with CK1ε, but did not induce Dvl phosphorylation, suggesting the importance of the Daple/Dvl/CK1ε trimeric protein complex. We further found that Thr224 phosphorylation of Dvl was required for full activation of β-catenin transcriptional activity. Consistent with this, wild-type Daple promoted β-catenin transcriptional activity, following dissociation of β-catenin and axin. Finally, Wnt3a stimulation increased the membrane localization of Daple and its association with Dvl, and Daple knockdown attenuated Wnt3a-mediated β-catenin transcriptional activity. Collectively, these data suggested a essential role of spatial Daple localization in CK1ε-mediated activation of Dvl in the canonical Wnt signaling pathway.
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Affiliation(s)
- Nobutoshi Esaki
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Atsushi Enomoto
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Maki Takagishi
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Yasuyuki Mizutani
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan; Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Tadashi Iida
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan; Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Kaori Ushida
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Yukihiro Shiraki
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Shinji Mii
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Masahide Takahashi
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan; International Center for Cell and Gene Therapy, Fujita Health University, Toyoake, 470-1192, Japan.
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10
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Abstract
This study aims to explore the mechanism of fluid shear stress in regulating the primary cilia assembly or disassembly in human umbilical vein endothelial cells (hUVECs) using microfluidic chamber experiments. Immunofluorescence analysis showed that primary cilia assembled under disturbed fluid shear stress (DF) of 1 dyne/cm2, while disassembled under unidirectional shear stress (USS) of 15 dynes/cm2. Disheveled (Dvl2) in Wnt signaling pathway was effectively co-immunoprecipitated with Bardet-Biedl syndrome proteins 8 (Bbs8) and γ-tubulin. Compared with those in the control group, the percentages of ciliated cells with Dvl2 overexpression were found to be 67% and 59.667%, respectively, under USS and DF (an increment of 21-38.7%); while, those with Dvl2 silencing were 16% and 32.667%, respectively, under USS and DF (a decrement of 23-30%). Further, the expression of Bbs8 and γ-tubulin was decreased by RNA interference of Dvl2 but increased with Dvl2 overexpression. The results indicated that Dvl2 played a pivotal role during DF-induced primary cilia assembly, and was important for apical docking of basal bodies through Bbs8 and γ-tubulin.
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Affiliation(s)
- Xin Sheng
- Department of Biochemistry, Zunyi Medical University, Zunyi, 563000, People's Republic of China.
| | - Yan Sheng
- Laboratory of Basic Medical Morphology, Zunyi Medical University, Zunyi, 563000, People's Republic of China
| | - Shuanglin Gao
- Department of Biochemistry, Zunyi Medical University, Zunyi, 563000, People's Republic of China
| | - Fang Fan
- Department of Biochemistry, Zunyi Medical University, Zunyi, 563000, People's Republic of China
| | - Junhua Wang
- Department of Biochemistry, Zunyi Medical University, Zunyi, 563000, People's Republic of China
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Liu F, Wang Z, Liu F, Xu J, Liu Q, Yin K, Lan J. MicroRNA-29a-3p enhances dental implant osseointegration of hyperlipidemic rats via suppressing dishevelled 2 and frizzled 4. Cell Biosci 2018; 8:55. [PMID: 30386554 PMCID: PMC6203977 DOI: 10.1186/s13578-018-0254-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 05/30/2018] [Accepted: 10/22/2018] [Indexed: 12/21/2022] Open
Abstract
Background Fine osseointegration is the basis of long-term survival of implant. In our previous study, we observed a strong correlation between hyperlipidemia and compromised osseointegration. MicroRNA-29a-3p (miR-29a-3p) has been discovered to participate in bone marrow mesenchymal stem cells (BMSCs) differentiation. However, the role and the underlying mechanisms of hyperlipidemia and miR-29a-3p in osseointegration still remain obscure. Results In peri-implant bone tissues of hyperlipidemia rats, bone mass, mineralization and bone trabecula formation were weakened. Alkaline phosphatase (ALP) and runt-related transcription factor 2 (Runx2), and miR-29a-3p expression were reduced. While in normal rats, implant-bone interfaces were filled with dense new bone and ALP, Runx2 and miR-29a-3p were up-regulated. Overexpressed miR-29a-3p can reverse the adverse effect of hyperlipidemia on osseointegration. Implants were tightly integrated with the surrounding dense new bone tissues, and ALP as well as Runx2 mRNAs were enhanced in miR-29a-3p overexpressed and hyperlipidemia rats, while little peri-implant bone tissue existed, ALP and Runx2 deregulated on miR-29a-3p inhibited rats. Dishevelled 2 (Dvl2) mRNA was declined in peri-implant bone tissue of high-fat (HF) group than normal group, while frizzled 4 (Fzd4) mRNA declined on day 5 and increased from day 10 to day 20 after implantation in hyperlipidemia rats than in normal rats. Next, BMSCs were cultured under HF or normal medium in vitro. In the HF group, ALP activity and mineralization, ALP and Runx2 mRNAs and proteins expression, and miR-29a-3p expression were suppressed, while adipogenesis was increased, as a result, cytoskeletons were sparse and disordered compared to control group. However, when miR-29a-3p was overexpressed in BMSCs, ALP activity, ALP, Runx2, Dvl2 and Fzd4 mRNAs and proteins expressions were up-regulated. As miR-29a-3p was inhibited in BMSCs, the reverse results were obtained. In addition, promoter assay revealed that miR-29a-3p can directly suppress Wnt/β-catenin pathway related Dvl2 and Fzd4 through binding to their 3'-UTR. Conclusions MiR-29a-3p facilitated implant osseointegration via targeting Wnt/β-catenin pathway-related Dvl2 and Fzd4. MiR-29a-3p/Dvl2/Fzd4 may serve as a promising therapeutic target for hyperlipidemia osseointegration.
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Affiliation(s)
- Fei Liu
- 1Department of Prosthodontics, School of Stomatology, Shandong University, Jinan, 250000 China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, 44-1 West Wenhua Street, Jinan, 250012 Shandong China
| | - Zhifeng Wang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, 44-1 West Wenhua Street, Jinan, 250012 Shandong China.,3Department of Pediatric Dentistry, School of Stomatology, Shandong University, Jinan, 250000 China
| | - Fangfang Liu
- Department of Implantology, Stomatological Hospital of Nanyang, Nanyang, 473000 China
| | - Jinzhao Xu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, 44-1 West Wenhua Street, Jinan, 250012 Shandong China.,3Department of Pediatric Dentistry, School of Stomatology, Shandong University, Jinan, 250000 China
| | - Qibo Liu
- 1Department of Prosthodontics, School of Stomatology, Shandong University, Jinan, 250000 China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, 44-1 West Wenhua Street, Jinan, 250012 Shandong China
| | - Kaifeng Yin
- 4Department of Orthodontics, Herman Ostrow School of Dentistry, Los Angeles, CA 90089 USA.,5Center for Craniofacial Molecular Biology, Herman Ostrow School of Dentistry, Los Angeles, 90033 USA
| | - Jing Lan
- 1Department of Prosthodontics, School of Stomatology, Shandong University, Jinan, 250000 China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, 44-1 West Wenhua Street, Jinan, 250012 Shandong China.,7Department of Prosthodontics, School of Dentistry, Shandong University, Jinan, China
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12
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Huang X, Wang Z, Li D, Huang Z, Dong X, Li C, Lan J. Study of microRNAs targeted Dvl2 on the osteoblasts differentiation of rat BMSCs in hyperlipidemia environment. J Cell Physiol 2018; 233:6758-6766. [PMID: 29226968 DOI: 10.1002/jcp.26392] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 09/13/2017] [Accepted: 12/04/2017] [Indexed: 01/31/2023]
Abstract
Dishevelled 2 (Dvl-2), a key mediator of the wnt/β-catenin signaling pathway, plays critical roles in osteoblasts differentiation in hyperlipidemia environment. In our previous study, we observed a strong correlation between increased dvl2 expression and decreased new bone formation around implants in a rat hyperlipidemia implant surgery model. However, transcriptional regulation of Dvl2 by microRNAs in this process remains unknown. In the current study, we searched in online database and identified four significantly up-regulated miRNAs, miR-21-5p, miR-29c-3p, miR-138-5p, and miR-351-5p that could potentially regulate Dvl2. Using Western blot and dual-luciferase assays, we confirmed that miR29c-3p suppresses Dvl2 expression by binding to its 3'-UTR. Our results suggest a novel transcriptional regulation mechanism of Dvl2 by miR-29c-3p in osteoblasts differentiation of BMSCs.
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Affiliation(s)
- Xin Huang
- Department of Prosthodontics, School of Dentistry, Shandong University, Jinan, China
| | - Zhifeng Wang
- Department of Pediatric Dentistry, School of Dentistry, Shandong University, Jinan, China
| | - Duoduo Li
- Department of Prosthodontics, School of Dentistry, Shandong University, Jinan, China
| | - Zhengfei Huang
- Department of Prosthodontics, School of Dentistry, Shandong University, Jinan, China
| | - Xiaofei Dong
- Department of Prosthodontics, School of Dentistry, Shandong University, Jinan, China
| | - Chuanhua Li
- Department of Prosthodontics, School of Dentistry, Shandong University, Jinan, China
| | - Jing Lan
- Department of Prosthodontics, School of Dentistry, Shandong University, Jinan, China
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13
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Abstract
Drug resistance is one of the main hurdles to overcome for the improvement of cancer patient survival. However, the underlying mechanisms remain largely unknown, and therapeutic options are limited. Here, we demonstrate a strong correlation between HMGA2 expression and chemosensitivity to 5-fluorouracil (5-FU), a widely used first-line systemic chemotherapy regimen for colorectal cancer (CRC) patients. Overexpression of HMGA2 enhances chemoresistance to 5-FU of CRC both in vitro and in vivo. Further experiments indicate that HMGA2 directly binds to the promoter of Dvl2 and induces its transcription, which leads to increased activation of the Wnt/β-catenin pathway. Taken together, our data suggest that HMGA2 enhances the chemoresistance to 5-FU in CRC via activating the Dvl2/Wnt pathway. Therefore, HMGA2 may serve as a predictive biomarker and a potential therapeutic target in CRC.
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Affiliation(s)
- Xi Xu
- Department of Pathology, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Hangzhou, Zhejiang, 310058, China
| | - Yunfeng Wang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang, 150081, China
| | - Hong Deng
- Department of Pathology, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Hangzhou, Zhejiang, 310058, China
| | - Chungang Liu
- Department of Pathology, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Hangzhou, Zhejiang, 310058, China.,Center of Biological Therapy, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Jingjing Wu
- Department of Pathology, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Hangzhou, Zhejiang, 310058, China
| | - Maode Lai
- Department of Pathology, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310058, China.,Key Laboratory of Disease Proteomics of Zhejiang Province, Hangzhou, Zhejiang, 310058, China
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Gao X, Yang L, Luo H, Tan F, Ma X, Lu C. A Rare Rs139365823 Polymorphism in Pre-miR-138 Is Associated with Risk of Congenital Heart Disease in a Chinese Population. DNA Cell Biol 2018; 37:109-116. [PMID: 29298094 DOI: 10.1089/dna.2017.4013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
miR-138 modulates cardiac morphogenesis in zebrafish. We explored whether a genetic polymorphism in miR-138 might contribute to the occurrence of sporadic congenital heart disease (CHD) and the potential mechanism. We performed a case-control study consisting of 857 CHD cases and 938 non-CHD controls by genotyping miR-138 in a Chinese population. Two SNPs, including rare rs139365823 located in the pre-miR-138 sequence and rs76987351 located in the pri-miR-138 sequence, were identified by sequencing miR-138. The results demonstrated that the genotypes and allele frequencies of the rs139365823 minor allele A were significantly associated with the increased risk of CHD cases overall or in the Tetralogy of Fallot (TOF) subtype, but not with the rs76987351 A/G allele. Real-time PCR data showed that the rs139365823 minor allele A significantly increased the expression of mature miR-138, whereas the rs76987351 minor allele A had the opposite effect. As TOF is caused by severe outflow tract (OFT) development and an alignment defect, we identified Dvl2, involved in OFT development, as a direct target of miR-138. Further, the rs139365823 minor allele A enhanced the miR-138-mediated inhibitory regulation of Dvl2. Taken together, our results demonstrated for the first time that the functional variant rs139365823 in pre-miR-138 altered the expression of mature miR-138 and its inhibitory effect on target genes and conferred the risk for CHD in the population studied here.
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Affiliation(s)
- Xiaobo Gao
- 1 Department of Genetics, National Research Institute for Family Planning , Beijing, China .,2 Graduate School of Peking Union Medical College , Beijing, China
| | - Liping Yang
- 3 Department of Cardiovascular Surgery, Union Hospital, Fujian Medical University , Fuzhou, China
| | - Haiyan Luo
- 2 Graduate School of Peking Union Medical College , Beijing, China
| | - Fengwei Tan
- 4 Department of Thoracic Surgery, National Cancer Center/Cancer Hospital , Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xu Ma
- 1 Department of Genetics, National Research Institute for Family Planning , Beijing, China .,2 Graduate School of Peking Union Medical College , Beijing, China
| | - Cailing Lu
- 1 Department of Genetics, National Research Institute for Family Planning , Beijing, China .,2 Graduate School of Peking Union Medical College , Beijing, China
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Lee U, Kim SO, Hwang JA, Jang JH, Son S, Ryoo IJ, Ahn JS, Kim BY, Lee KH. The Fungal Metabolite Brefeldin A Inhibits Dvl2-Plk1-Dependent Primary Cilium Disassembly. Mol Cells 2017; 40:401-409. [PMID: 28614913 PMCID: PMC5523016 DOI: 10.14348/molcells.2017.0032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/28/2017] [Accepted: 05/11/2017] [Indexed: 11/27/2022] Open
Abstract
The primary cilium is a non-motile microtubule-based organelle that protrudes from the surface of most human cells and works as a cellular antenna to accept extracellular signals. Primary cilia assemble from the basal body during the resting stage (G0 phase) and simultaneously disassemble with cell cycle re-entry. Defective control of assembly or disassembly causes diverse human diseases including ciliopathy and cancer. To identify the effective compounds for studying primary cilium disassembly, we have screened 297 natural compounds and identified 18 and 17 primary cilium assembly and disassembly inhibitors, respectively. Among them, the application of KY-0120, identified as Brefeldin A, disturbed Dvl2-Plk1-mediated cilium disassembly via repression of the interaction of CK1ɛ-Dvl2 and the expression of Plk1 mRNA. Therefore, our study may suggest useful compounds for studying the cellular mechanism of primary cilium disassembly to prevent ciliopathy and cancer.
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Affiliation(s)
- Uijeong Lee
- World Class Institute (WCI), Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk 28116,
Korea
- Department of Biomolecular Science, University of Science and Technology, Daejeon 34113,
Korea
| | - Sun-Ok Kim
- World Class Institute (WCI), Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk 28116,
Korea
| | - Jeong-Ah Hwang
- World Class Institute (WCI), Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk 28116,
Korea
- Research Institute of Medical Sciences, Department of Physiology, College of Medicine, Chungnam National University, Daejeon 34134,
Korea
| | - Jae-Hyuk Jang
- World Class Institute (WCI), Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk 28116,
Korea
- Department of Biomolecular Science, University of Science and Technology, Daejeon 34113,
Korea
| | - Sangkeun Son
- World Class Institute (WCI), Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk 28116,
Korea
- Department of Biomolecular Science, University of Science and Technology, Daejeon 34113,
Korea
| | - In-Ja Ryoo
- World Class Institute (WCI), Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk 28116,
Korea
| | - Jong Seog Ahn
- World Class Institute (WCI), Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk 28116,
Korea
- Department of Biomolecular Science, University of Science and Technology, Daejeon 34113,
Korea
| | - Bo Yeon Kim
- World Class Institute (WCI), Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk 28116,
Korea
- Department of Biomolecular Science, University of Science and Technology, Daejeon 34113,
Korea
| | - Kyung Ho Lee
- World Class Institute (WCI), Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk 28116,
Korea
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Rauschenberger V, Bernkopf DB, Krenn S, Jalal K, Heller J, Behrens J, Gentzel M, Schambony A. The phosphatase Pgam5 antagonizes Wnt/β-Catenin signaling in embryonic anterior-posterior axis patterning. Development 2017; 144:2234-2247. [PMID: 28506997 DOI: 10.1242/dev.144477] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 05/03/2017] [Indexed: 12/13/2022]
Abstract
The scaffold protein Dishevelled is a central intracellular component of Wnt signaling pathways. Various kinases have been described that regulate and modulate Wnt signaling through phosphorylation of Dishevelled. However, besides general protein phosphatases 1 and 2 (PP1 and PP2), no specific protein phosphatases have been identified. Here, we report on the identification and functional characterization of the protein phosphatase Pgam5 in vitro and in vivo in Xenopus Pgam5 is a novel antagonist of Wnt/β-Catenin signaling in human cells and Xenopus embryogenesis. In early development, Pgam5 is essential for head formation, and for establishing and maintaining the Wnt/β-Catenin signaling gradient that patterns the anterior-posterior body axis. Inhibition of Wnt/β-Catenin signaling and developmental function depend on Pgam5 phosphatase activity. We show that Pgam5 interacts with Dishevelled2 and that Dishevelled2 is a substrate of Pgam5. Pgam5 mediates a marked decrease in Dishevelled2 phosphorylation in the cytoplasm and in the nucleus, as well as decreased interaction between Dishevelled2, Tcf1 and β-Catenin, indicating that Pgam5 regulates Dishevelled function upstream and downstream of β-Catenin stabilization.
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Affiliation(s)
- Verena Rauschenberger
- Biology Department, Developmental Biology, Friedrich-Alexander University Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Dominic B Bernkopf
- Experimental Medicine II, Nikolaus-Fiebiger-Centre, Friedrich-Alexander University Erlangen-Nuremberg, 91054 Erlangen, Germany
| | - Sabrina Krenn
- Biology Department, Developmental Biology, Friedrich-Alexander University Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Kowcee Jalal
- Experimental Medicine II, Nikolaus-Fiebiger-Centre, Friedrich-Alexander University Erlangen-Nuremberg, 91054 Erlangen, Germany
| | - Jens Heller
- Biology Department, Developmental Biology, Friedrich-Alexander University Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Jürgen Behrens
- Experimental Medicine II, Nikolaus-Fiebiger-Centre, Friedrich-Alexander University Erlangen-Nuremberg, 91054 Erlangen, Germany
| | - Marc Gentzel
- Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany.,Center for Molecular and Cellular Bioengineering, Molecular Analysis - Mass Spectrometry, TU Dresden, 01307 Dresden, Germany
| | - Alexandra Schambony
- Biology Department, Developmental Biology, Friedrich-Alexander University Erlangen-Nuremberg, 91058 Erlangen, Germany
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Yang X, Fisher DA, Cheyette BN. SEC14 and Spectrin Domains 1 (Sestd1), Dishevelled 2 ( Dvl2) and Dapper Antagonist of Catenin-1 (Dact1) co-regulate the Wnt/Planar Cell Polarity (PCP) pathway during mammalian development. Commun Integr Biol 2013; 6:e26834. [PMID: 24505507 PMCID: PMC3914910 DOI: 10.4161/cib.26834] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 10/15/2013] [Accepted: 10/16/2013] [Indexed: 02/07/2023] Open
Abstract
We previously reported that Sestd1 KO phenocopies Dact1 KO in mice, consistent with a model in which Sestd1 and Dact1 act together to form a crucial functional complex that regulates Vangl2 in the Wnt/Planar Cell Polarity (PCP) pathway. Here, we show that Dvl2, a binding partner of Dact1, also forms complexes with Sestd1, and does so independently of both Dact1 and Vangl2. In cell-based assays, whereas Sestd1 does not alter Dvl2 activation of the Wnt/β-catenin signaling pathway, Dvl2 enhances activation of Rho family GTPases by Dact1 and Sestd1, consistent with a role in the PCP pathway. In mice, although Dvl2 KO is recessive in an otherwise wild type background, it leads to dominant embryonic lethality in either the Sestd1 or Dact1 KO background. This genetic synergy stands in contrast to the epistasis we have previously reported between Sestd1 and Dact1 KO, and suggests independent or semi-independent functions for Dvl2 vs. Sestd1/Dact1 in the regulation of the PCP pathway during development. In conclusion, biochemical and genetic interactions between Dvl2, Sestd1, and Dact1, in addition to prior reported interactions between these same molecules and Vangl2, suggest that all these gene products can form complexes together and regulate the PCP pathway during mammalian development. However, Sestd1 and Dact1 have a closely allied function in the post-translational regulation of Vangl2 that is at least partially distinct from the functions of Dvl2 in this pathway.
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Affiliation(s)
- Xiaoyong Yang
- The Nina Ireland Laboratory of Developmental Neurobiology; Department of Psychiatry; University of California San Francisco; San Francisco, CA USA
| | - Daniel A Fisher
- The Nina Ireland Laboratory of Developmental Neurobiology; Department of Psychiatry; University of California San Francisco; San Francisco, CA USA
| | - Benjamin Nr Cheyette
- The Nina Ireland Laboratory of Developmental Neurobiology; Department of Psychiatry; University of California San Francisco; San Francisco, CA USA
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