1
|
Li Z, Mao K, Liu L, Xu S, Zeng M, Fu Y, Huang J, Li T, Gao G, Teng ZQ, Sun Q, Chen D, Cheng Y. Nuclear microRNA-mediated transcriptional control determines adult microglial homeostasis and brain function. Cell Rep 2024; 43:113964. [PMID: 38489263 DOI: 10.1016/j.celrep.2024.113964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 02/01/2024] [Accepted: 02/28/2024] [Indexed: 03/17/2024] Open
Abstract
Microglia are versatile regulators in brain development and disorders. Emerging evidence links microRNA (miRNA)-mediated regulation to microglial function; however, the exact underlying mechanism remains largely unknown. Here, we uncover the enrichment of miR-137, a neuropsychiatric-disorder-associated miRNA, in the microglial nucleus, and reveal its unexpected nuclear functions in maintaining the microglial global transcriptomic state, phagocytosis, and inflammatory response. Mechanistically, microglial Mir137 deletion increases chromatin accessibility, which contains binding motifs for the microglial master transcription factor Pu.1. Through biochemical and bioinformatics analyses, we propose that miR-137 modulates Pu.1-mediated gene expression by suppressing Pu.1 binding to chromatin. Importantly, we find that increased Pu.1 binding upregulates the target gene Jdp2 (Jun dimerization protein 2) and that knockdown of Jdp2 significantly suppresses the impaired phagocytosis and pro-inflammatory response in Mir137 knockout microglia. Collectively, our study provides evidence supporting the notion that nuclear miR-137 acts as a transcriptional modulator and that this microglia-specific function is essential for maintaining normal adult brain function.
Collapse
Affiliation(s)
- Zhu Li
- Institute of Biomedical Research, Yunnan University, Kunming 650500, China
| | - Kexin Mao
- Institute of Biomedical Research, Yunnan University, Kunming 650500, China; Southwest United Graduate School, Kunming 650500, China
| | - Lin Liu
- Institute of Biomedical Research, Yunnan University, Kunming 650500, China
| | - Shengyun Xu
- Institute of Biomedical Research, Yunnan University, Kunming 650500, China
| | - Min Zeng
- Institute of Biomedical Research, Yunnan University, Kunming 650500, China
| | - Yu Fu
- Institute of Biomedical Research, Yunnan University, Kunming 650500, China
| | - Jintao Huang
- Institute of Biomedical Research, Yunnan University, Kunming 650500, China
| | - Tingting Li
- Institute of Biomedical Research, Yunnan University, Kunming 650500, China
| | - Guoan Gao
- Institute of Biomedical Research, Yunnan University, Kunming 650500, China
| | - Zhao-Qian Teng
- Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Qinmiao Sun
- Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Dahua Chen
- Institute of Biomedical Research, Yunnan University, Kunming 650500, China; Southwest United Graduate School, Kunming 650500, China.
| | - Ying Cheng
- Institute of Biomedical Research, Yunnan University, Kunming 650500, China; Southwest United Graduate School, Kunming 650500, China.
| |
Collapse
|
2
|
Price K, Yang WH, Cardoso L, Wang CM, Yang RH, Yang WH. Jun Dimerization Protein 2 (JDP2) Increases p53 Transactivation by Decreasing MDM2. Cancers (Basel) 2024; 16:1000. [PMID: 38473360 DOI: 10.3390/cancers16051000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
The AP-1 protein complex primarily consists of several proteins from the c-Fos, c-Jun, activating transcription factor (ATF), and Jun dimerization protein (JDP) families. JDP2 has been shown to interact with the cAMP response element (CRE) site present in many cis-elements of downstream target genes. JDP2 has also demonstrates important roles in cell-cycle regulation, cancer development and progression, inhibition of adipocyte differentiation, and the regulation of antibacterial immunity and bone homeostasis. JDP2 and ATF3 exhibit significant similarity in their C-terminal domains, sharing 60-65% identities. Previous studies have demonstrated that ATF3 is able to influence both the transcriptional activity and p53 stability via a p53-ATF3 interaction. While some studies have shown that JDP2 suppresses p53 transcriptional activity and in turn, p53 represses JDP2 promoter activity, the direct interaction between JDP2 and p53 and the regulatory role of JDP2 in p53 transactivation have not been explored. In the current study, we provide evidence, for the first time, that JDP2 interacts with p53 and regulates p53 transactivation. First, we demonstrated that JDP2 binds to p53 and the C-terminal domain of JDP2 is crucial for the interaction. Second, in p53-null H1299 cells, JDP2 shows a robust increase of p53 transactivation in the presence of p53 using p53 (14X)RE-Luc. Furthermore, JDP2 and ATF3 together additively enhance p53 transactivation in the presence of p53. While JDP2 can increase p53 transactivation in the presence of WT p53, JDP2 fails to enhance transactivation of hotspot mutant p53. Moreover, in CHX chase experiments, we showed that JDP2 slightly enhances p53 stability. Finally, our findings indicate that JDP2 has the ability to reverse MDM2-induced p53 repression, likely due to decreased levels of MDM2 by JDP2. In summary, our results provide evidence that JDP2 directly interacts with p53 and decreases MDM2 levels to enhance p53 transactivation, suggesting that JDP2 is a novel regulator of p53 and MDM2.
Collapse
Affiliation(s)
- Kasey Price
- Department of Biomedical Sciences, School of Medicine, Mercer University, Savannah, GA 31404, USA
| | - William H Yang
- Department of Biomedical Sciences, School of Medicine, Mercer University, Savannah, GA 31404, USA
| | - Leticia Cardoso
- Department of Biomedical Sciences, School of Medicine, Mercer University, Savannah, GA 31404, USA
| | - Chiung-Min Wang
- Department of Biomedical Sciences, School of Medicine, Mercer University, Savannah, GA 31404, USA
| | - Richard H Yang
- Department of Biomedical Sciences, School of Medicine, Mercer University, Savannah, GA 31404, USA
| | - Wei-Hsiung Yang
- Department of Biomedical Sciences, School of Medicine, Mercer University, Savannah, GA 31404, USA
| |
Collapse
|
3
|
Rodríguez TC, Kwan SY, Smith JL, Dadafarin S, Wu CH, Sontheimer EJ, Xue W. Multiomics characterization of mouse hepatoblastoma identifies yes-associated protein 1 target genes. Hepatology 2022. [PMID: 35932276 DOI: 10.1002/hep.32713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 12/08/2022]
Abstract
BACKGROUND AND AIMS Hepatoblastoma (HB) is the most common primary liver malignancy in childhood and lacks targeted therapeutic options. We previously engineered, to our knowledge, the first yes-associated protein 1 (YAP1)S127A -inducible mouse model of HB, demonstrating tumor regression and redifferentiation after YAP1 withdrawal through genome-wide enhancer modulation. Probing accessibility, transcription, and YAP1 binding at regulatory elements in HB tumors may provide more insight into YAP1-driven tumorigenesis and expose exploitable vulnerabilities in HB. APPROACH AND RESULTS Using a multiomics approach, we integrated high-throughput transcriptome and chromatin profiling of our murine HB model to identify dynamic activity at candidate cis-regulatory elements (cCREs). We observed that 1301 of 305,596 cCREs exhibit "tumor-modified" (TM) accessibility in HB. We mapped 241 TM enhancers to corresponding genes using accessibility and histone H3K27Ac profiles. Anti-YAP1 cleavage under targets and tagmentation in tumors revealed 66 YAP1-bound TM cCRE/gene pairs, 31 of which decrease expression after YAP1 withdrawal. We validated the YAP1-dependent expression of a putative YAP1 target, Jun dimerization protein 2 (JDP2), in human HB cell lines using YAP1 and LATS1/2 small interfering RNA knockdown. We also confirmed YAP1-induced activity of the Jdp2 TM enhancer in vitro and discovered an analogous human enhancer in silico. Finally, we used transcription factor (TF) footprinting to identify putative YAP1 cofactors and characterize HB-specific TF activity genome wide. CONCLUSIONS Our chromatin-profiling techniques define the regulatory frameworks underlying HB and identify YAP1-regulated gene/enhancer pairs. JDP2 is an extensively validated target with YAP1-dependent expression in human HB cell lines and hepatic malignancies.
Collapse
Affiliation(s)
- Tomás C Rodríguez
- RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Suet-Yan Kwan
- RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Jordan L Smith
- RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | | | - Chern-Horng Wu
- Division of Internal Medicine and Primary Care, Tufts Medical Center, Boston, Massachusetts, USA
| | - Erik J Sontheimer
- RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Wen Xue
- RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| |
Collapse
|
4
|
Canonical Wnt: a safeguard and threat for erythropoiesis. Blood Adv 2021; 5:3726-3735. [PMID: 34516644 DOI: 10.1182/bloodadvances.2021004845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/09/2021] [Indexed: 11/20/2022] Open
Abstract
Myeloid dysplastic syndrome (MDS) reflects a preleukemic bone marrow (BM) disorder with limited treatment options and poor disease survival. As only a minority of MDS patients are eligible for curative hematopoietic stem cell transplantation, there is an urgent need to develop alternative treatment options. Chronic activation of Wnt/β-catenin has been implicated to underlie MDS formation and recently assigned to drive MDS transformation to acute myeloid leukemia. Wnt/β-catenin signaling therefore may harbor a pharmaceutical target to treat MDS and/or prevent leukemia formation. However, targeting the Wnt/β-catenin pathway will also affect healthy hematopoiesis in MDS patients. The control of Wnt/β-catenin in healthy hematopoiesis is poorly understood. Whereas Wnt/β-catenin is dispensable for steady-state erythropoiesis, its activity is essential for stress erythropoiesis in response to BM injury and anemia. Manipulation of Wnt/β-catenin signaling in MDS may therefore deregulate stress erythropoiesis and even increase anemia severity. Here, we provide a comprehensive overview of the most recent and established insights in the field to acquire more insight into the control of Wnt/β-catenin signaling in healthy and inefficient erythropoiesis as seen in MDS.
Collapse
|
5
|
Ku CC, Wuputra K, Kato K, Pan JB, Li CP, Tsai MH, Noguchi M, Nakamura Y, Liu CJ, Chan TF, Hou MF, Wakana S, Wu YC, Lin CS, Wu DC, Yokoyama KK. Deletion of Jdp2 enhances Slc7a11 expression in Atoh-1 positive cerebellum granule cell progenitors in vivo. Stem Cell Res Ther 2021; 12:369. [PMID: 34187574 PMCID: PMC8243712 DOI: 10.1186/s13287-021-02424-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/27/2021] [Indexed: 11/24/2022] Open
Abstract
Background The cerebellum is the sensitive region of the brain to developmental abnormalities related to the effects of oxidative stresses. Abnormal cerebellar lobe formation, found in Jun dimerization protein 2 (Jdp2)-knockout (KO) mice, is related to increased antioxidant formation and a reduction in apoptotic cell death in granule cell progenitors (GCPs). Here, we aim that Jdp2 plays a critical role of cerebellar development which is affected by the ROS regulation and redox control. Objective Jdp2-promoter-Cre transgenic mouse displayed a positive signal in the cerebellum, especially within granule cells. Jdp2-KO mice exhibited impaired development of the cerebellum compared with wild-type (WT) mice. The antioxidation controlled gene, such as cystine-glutamate transporter Slc7a11, might be critical to regulate the redox homeostasis and the development of the cerebellum. Methods We generated the Jdp2-promoter-Cre mice and Jdp2-KO mice to examine the levels of Slc7a11, ROS levels and the expressions of antioxidation related genes were examined in the mouse cerebellum using the immunohistochemistry. Results The cerebellum of Jdp2-KO mice displayed expression of the cystine-glutamate transporter Slc7a11, within the internal granule layer at postnatal day 6; in contrast, the WT cerebellum mainly displayed Sla7a11 expression in the external granule layer. Moreover, development of the cerebellar lobes in Jdp2-KO mice was altered compared with WT mice. Expression of Slc7a11, Nrf2, and p21Cip1 was higher in the cerebellum of Jdp2-KO mice than in WT mice. Conclusion Jdp2 is a critical regulator of Slc7a11 transporter during the antioxidation response, which might control the growth, apoptosis, and differentiation of GCPs in the cerebellar lobes. These observations are consistent with our previous study in vitro. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02424-4.
Collapse
Affiliation(s)
- Chia-Chen Ku
- Graduate Institute of Medicine, Regenerative Medicine and Cell Therapy Research Center, School of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 807, Koahsiung, Taiwan
| | - Kenly Wuputra
- Graduate Institute of Medicine, Regenerative Medicine and Cell Therapy Research Center, School of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 807, Koahsiung, Taiwan
| | - Kohsuke Kato
- Department of Infection Biology, Graduate School of Comprehensive Human Sciences, The University of Tsukuba, Tsukuba, 305-8577, Japan
| | - Jia-Bin Pan
- Graduate Institute of Medicine, Regenerative Medicine and Cell Therapy Research Center, School of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 807, Koahsiung, Taiwan
| | - Chia-Pei Li
- Graduate Institute of Medicine, Regenerative Medicine and Cell Therapy Research Center, School of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 807, Koahsiung, Taiwan
| | - Ming-Ho Tsai
- Graduate Institute of Medicine, Regenerative Medicine and Cell Therapy Research Center, School of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
| | - Michiya Noguchi
- Cell Engineering Division, Japan Mouse Clinic, RIKEN BioResource Research Center, Tsukuba, 305-0074, Japan
| | - Yukio Nakamura
- Cell Engineering Division, Japan Mouse Clinic, RIKEN BioResource Research Center, Tsukuba, 305-0074, Japan
| | - Chung-Jung Liu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 807, Koahsiung, Taiwan.,Department of Gastroenterology, Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan.,Division of gastroenterology, Department of Internal Medicine, Kaohsiung University Hospital, 807, Kaohsiung, Taiwan
| | - Te-Fu Chan
- Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
| | - Ming-Feng Hou
- Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
| | - Shigeharu Wakana
- Japan Mouse Clinic, RIKEN BioResource Research Center, Tsukuba, Ibaraki, 305-0074, Japan.,Department of Animal Experimentation, Foundation for Biomedical Research and Innovation at Kobe, Hygo, 650-0047, Japan
| | - Yang-Chang Wu
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan
| | - Chang-Shen Lin
- Graduate Institute of Medicine, Regenerative Medicine and Cell Therapy Research Center, School of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Deng-Chyang Wu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 807, Koahsiung, Taiwan.,Department of Gastroenterology, Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan.,Division of gastroenterology, Department of Internal Medicine, Kaohsiung University Hospital, 807, Kaohsiung, Taiwan
| | - Kazunari K Yokoyama
- Graduate Institute of Medicine, Regenerative Medicine and Cell Therapy Research Center, School of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan. .,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 807, Koahsiung, Taiwan. .,Department of Gastroenterology, Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan.
| |
Collapse
|
6
|
JDP2, a Novel Molecular Key in Heart Failure and Atrial Fibrillation? Int J Mol Sci 2021; 22:ijms22084110. [PMID: 33923401 PMCID: PMC8074072 DOI: 10.3390/ijms22084110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/08/2021] [Accepted: 04/15/2021] [Indexed: 11/17/2022] Open
Abstract
Heart failure (HF) and atrial fibrillation (AF) are two major life-threatening diseases worldwide. Causes and mechanisms are incompletely understood, yet current therapies are unable to stop disease progression. In this review, we focus on the contribution of the transcriptional modulator, Jun dimerization protein 2 (JDP2), and on HF and AF development. In recent years, JDP2 has been identified as a potential prognostic marker for HF development after myocardial infarction. This close correlation to the disease development suggests that JDP2 may be involved in initiation and progression of HF as well as in cardiac dysfunction. Although no studies have been done in humans yet, studies on genetically modified mice impressively show involvement of JDP2 in HF and AF, making it an interesting therapeutic target.
Collapse
|
7
|
Wuputra K, Tsai MH, Kato K, Yang YH, Pan JB, Ku CC, Noguchi M, Kishikawa S, Nakade K, Chen HL, Liu CJ, Nakamura Y, Kuo KK, Lin YC, Chan TF, Wu DC, Hou MF, Huang SK, Lin CS, Yokoyama KK. Dimethyl sulfoxide stimulates the AhR-Jdp2 axis to control ROS accumulation in mouse embryonic fibroblasts. Cell Biol Toxicol 2021; 38:203-222. [PMID: 33723743 PMCID: PMC8986748 DOI: 10.1007/s10565-021-09592-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 02/21/2021] [Indexed: 11/21/2022]
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-binding protein that responds to environmental aromatic hydrocarbons and stimulates the transcription of downstream phase I enzyme–related genes by binding the cis element of dioxin-responsive elements (DREs)/xenobiotic-responsive elements. Dimethyl sulfoxide (DMSO) is a well-known organic solvent that is often used to dissolve phase I reagents in toxicology and oxidative stress research experiments. In the current study, we discovered that 0.1% DMSO significantly induced the activation of the AhR promoter via DREs and produced reactive oxygen species, which induced apoptosis in mouse embryonic fibroblasts (MEFs). Moreover, Jun dimerization protein 2 (Jdp2) was found to be required for activation of the AhR promoter in response to DMSO. Coimmunoprecipitation and chromatin immunoprecipitation studies demonstrated that the phase I–dependent transcription factors, AhR and the AhR nuclear translocator, and phase II–dependent transcription factors such as nuclear factor (erythroid-derived 2)–like 2 (Nrf2) integrated into DRE sites together with Jdp2 to form an activation complex to increase AhR promoter activity in response to DMSO in MEFs. Our findings provide evidence for the functional role of Jdp2 in controlling the AhR gene via Nrf2 and provide insights into how Jdp2 contributes to the regulation of ROS production and the cell spreading and apoptosis produced by the ligand DMSO in MEFs.
Collapse
Affiliation(s)
- Kenly Wuputra
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ming-Ho Tsai
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Kohsuke Kato
- Department of Infection Biology, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Ya-Han Yang
- Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jia-Bin Pan
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chia-Chen Ku
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Michiya Noguchi
- Cell Engineering Division, RIKEN BioResource Research Center, Tsukuba, Japan
| | - Shotaro Kishikawa
- Gene Engineering Division, RIKEN BioResource Research Center, Tsukuba, Ibaraki, Japan
| | - Koji Nakade
- Gene Engineering Division, RIKEN BioResource Research Center, Tsukuba, Ibaraki, Japan
| | - Hua-Ling Chen
- National Institute of Environmental Health, National Health Research Institutes, Zhunan, Taiwan
| | - Chung-Jung Liu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Gastroenterology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Research Center, Tsukuba, Japan
| | - Kung-Kai Kuo
- Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ying-Chu Lin
- School of Dentistry, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Te-Fu Chan
- Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Deng-Chyang Wu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Gastroenterology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ming-Feng Hou
- Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Shau-Ku Huang
- National Institute of Environmental Health, National Health Research Institutes, Zhunan, Taiwan.
| | - Chang-Shen Lin
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan.
| | - Kazunari K Yokoyama
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan. .,School of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Cell Therapy and Research Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
| |
Collapse
|
8
|
Diao X, Yao L, Wang Y, Zhang X, Sun H, Lao K, Ma H. Identification of critical miRNAs and mRNAs associated with polycystic ovary syndrome. J Obstet Gynaecol Res 2021; 47:1416-1424. [PMID: 33590597 DOI: 10.1111/jog.14707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 01/14/2021] [Accepted: 01/30/2021] [Indexed: 12/13/2022]
Abstract
AIM Polycystic ovary syndrome (PCOS) is a complicated endocrine and metabolic abnormality diseases common in women of child-bearing age. This study aims to screen out critical miRNAs and mRNAs associated with PCOS, which may be conducive to offer novel insights and treatment for the diseases. METHODS Three mRNA datasets and one miRNA dataset derived from granulosa cells of patients with PCOS and normal controls were downloaded to obtain the differentially expressed mRNAs (DEmRNAs) and miRNAs (DEmiRNAs). Then, DEmiRNA-target DEmRNAs analysis and functional annotation of DEmiRNA-target DEmRNAs were performed. Quantitative real time polymerase chain reaction (qRT-PCR) validation of the expression of the selected DEmRNAs and DEmiRNAs were performed. RESULTS A total of 1643 DEmRNAs, 88 DEmiRNAs, 2406 DEmiRNA (down)-DEmRNA (up), and 2179 DEmiRNA (up)-DEmRNA (down) pairs were obtained. The functional annotation of DEmiRNA-target DEmRNAs revealed that C-type lectin receptor signaling pathway, Steroid biosynthesis and Galactose metabolism were significantly enriched KEGG pathways. CONCLUSION These findings may provide make contribution to understanding PCOS pathogenesis, diagnosis, or treatment.
Collapse
Affiliation(s)
- Xinghua Diao
- Department of Reproductive Medicine, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Lijuan Yao
- Department of Obstetrics, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Yanlin Wang
- Department of Reproductive Medicine, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Xianghui Zhang
- Department of Reproductive Medicine, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Hongliang Sun
- Department of Reproductive Medicine, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - Kaixue Lao
- Department of Reproductive Medicine, Binzhou Medical University Hospital, Binzhou, Shandong, China
| | - He Ma
- Department of Reproductive Medicine, Binzhou Medical University Hospital, Binzhou, Shandong, China
| |
Collapse
|
9
|
Engler MJ, Mimura J, Yamazaki S, Itoh K. JDP2 is directly regulated by ATF4 and modulates TRAIL sensitivity by suppressing the ATF4-DR5 axis. FEBS Open Bio 2020; 10:2771-2779. [PMID: 33108704 PMCID: PMC7714084 DOI: 10.1002/2211-5463.13017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/16/2020] [Accepted: 10/20/2020] [Indexed: 02/06/2023] Open
Abstract
Jun dimerization protein 2 (JDP2) is a bZip‐type transcription factor, which acts as a repressor or activator of several cellular processes, including cell differentiation and chromatin remodeling. Previously, we found that a stress‐responsive transcription factor, known as activating transcription factor 4 (ATF4), enhances JDP2 gene expression in human astrocytoma U373MG and cervical cancer HeLa cells; however, the role of JDP2 in the ATF4‐mediated stress response remained unclear. Here, we reported that siRNA‐mediated JDP2 knockdown enhances the expression of several ATF4 target genes, including ASNS, and death receptors 4 and 5 (DR4 and DR5) in HeLa cells. In addition, the results of a transient reporter assay indicate that JDP2 overexpression represses ER stress‐mediated DR5 promoter activation suggesting that JDP2 negatively regulates ATF4‐mediated gene expression. Curiously, knockdown of JDP2 increases the sensitivity of cells to TNF‐related apoptosis‐inducing ligand (TRAIL), which induces apoptosis in cancer cells through DR4 and DR5. These results indicate that JDP2 functions as a negative feedback regulator of the ATF4 pathway and contributes to TRAIL resistance in cancer cells.
Collapse
Affiliation(s)
- Máté János Engler
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Japan
| | - Junsei Mimura
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Japan
| | - Shun Yamazaki
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Japan
| |
Collapse
|
10
|
Ku CC, Wuputra K, Kato K, Lin WH, Pan JB, Tsai SC, Kuo CJ, Lee KH, Lee YL, Lin YC, Saito S, Noguchi M, Nakamura Y, Miyoshi H, Eckner R, Nagata K, Wu DC, Lin CS, Yokoyama KK. Jdp2-deficient granule cell progenitors in the cerebellum are resistant to ROS-mediated apoptosis through xCT/Slc7a11 activation. Sci Rep 2020; 10:4933. [PMID: 32188872 PMCID: PMC7080836 DOI: 10.1038/s41598-020-61692-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 02/26/2020] [Indexed: 12/12/2022] Open
Abstract
The Jun dimerization protein 2 (Jdp2) is expressed predominantly in granule cell progenitors (GCPs) in the cerebellum, as was shown in Jdp2-promoter-Cre transgenic mice. Cerebellum of Jdp2-knockout (KO) mice contains lower number of Atoh-1 positive GCPs than WT. Primary cultures of GCPs from Jdp2-KO mice at postnatal day 5 were more resistant to apoptosis than GCPs from wild-type mice. In Jdp2-KO GCPs, the levels of both the glutamate‒cystine exchanger Sc7a11 and glutathione were increased; by contrast, the activity of reactive oxygen species (ROS) was decreased; these changes confer resistance to ROS-mediated apoptosis. In the absence of Jdp2, a complex of the cyclin-dependent kinase inhibitor 1 (p21Cip1) and Nrf2 bound to antioxidant response elements of the Slc7a11 promoter and provide redox control to block ROS-mediated apoptosis. These findings suggest that an interplay between Jdp2, Nrf2, and p21Cip1 regulates the GCP apoptosis, which is one of critical events for normal development of the cerebellum.
Collapse
Affiliation(s)
- Chia-Chen Ku
- Graduate Institute of Medicine, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.).,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.)
| | - Kenly Wuputra
- Graduate Institute of Medicine, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.).,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.)
| | - Kohsuke Kato
- Department of Infection Biology, Graduate School of Comprehensive Human Sciences, The University of Tsukuba, 305-8577, Tsukuba, Ibaraki, Japan
| | - Wen-Hsin Lin
- Graduate Institute of Medicine, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.).,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.)
| | - Jia-Bin Pan
- Graduate Institute of Medicine, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.).,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.)
| | - Shih-Chieh Tsai
- National Laboratory Animal Center, National Applied Research Laboratories (NARLabs), Xinshi Dist., 74147, Tainan, Taiwan (R.O.C.).,Founder of Gecoll Biomedicine Co. Ltd., Xinshi Dist., 744, Tainan, Taiwan (R.O.C.)
| | - Che-Jung Kuo
- National Laboratory Animal Center, National Applied Research Laboratories (NARLabs), Xinshi Dist., 74147, Tainan, Taiwan (R.O.C.)
| | - Kan-Hung Lee
- National Laboratory Animal Center, National Applied Research Laboratories (NARLabs), Nangang Dist., 11599, Taipei, Taiwan (R.O.C.)
| | - Yan-Liang Lee
- Welgene Biotech., Inc., 11503, Taipei, Taiwan (R.O.C.)
| | - Ying-Chu Lin
- School of Dentistry, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan
| | - Shigeo Saito
- Saito Laboratory of Cell Technology, Yaita, 329-2192, Tochigi, Japan.,Waseda Research Institute for Science & Engineering, Waseda University, 169-0051, Tokyo, Japan
| | - Michiya Noguchi
- Cell Engineering Division, RIKEN BioResource Research Center, 305-0074, Tsukuba, Ibaraki, Japan
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Research Center, 305-0074, Tsukuba, Ibaraki, Japan
| | - Hiroyuki Miyoshi
- Graduate Institute of Medicine, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.).,Department of Physiology, Keio University School of Medicine, Shinanaomachi, 168-8582, Tokyo, Japan
| | - Richard Eckner
- Departent of. Biochemistry & Molecular Biology, Rutgers New Jersey Medical School, The State University of New Jersey, 07-103, Newark, NJ, USA
| | - Kyosuke Nagata
- Department of Infection Biology, Graduate School of Comprehensive Human Sciences, The University of Tsukuba, 305-8577, Tsukuba, Ibaraki, Japan
| | - Deng-Chyang Wu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.).,Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 80708, Kaohsiung, Taiwan (R.O.C.)
| | - Chang-Shen Lin
- Graduate Institute of Medicine, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.). .,Department of Biological Sciences, National Sun Yat-sen University, 80424, Kaohsiung, Taiwan (R.O.C.).
| | - Kazunari K Yokoyama
- Graduate Institute of Medicine, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.). .,Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, 80708, Kaohsiung, Taiwan (R.O.C.). .,Department of Molecular Preventive Medicine, Graduate School of Medicine, The University of Tokyo, 113-8655, Tokyo, Japan.
| |
Collapse
|
11
|
Kalfon R, Friedman T, Eliachar S, Shofti R, Haas T, Koren L, Moskovitz JD, Hai T, Aronheim A. JDP2 and ATF3 deficiencies dampen maladaptive cardiac remodeling and preserve cardiac function. PLoS One 2019; 14:e0213081. [PMID: 30818334 PMCID: PMC6394944 DOI: 10.1371/journal.pone.0213081] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 02/14/2019] [Indexed: 12/30/2022] Open
Abstract
c-Jun dimerization protein (JDP2) and Activating Transcription Factor 3 (ATF3) are closely related basic leucine zipper proteins. Transgenic mice with cardiac expression of either JDP2 or ATF3 showed maladaptive remodeling and cardiac dysfunction. Surprisingly, JDP2 knockout (KO) did not protect the heart following transverse aortic constriction (TAC). Instead, the JDP2 KO mice performed worse than their wild type (WT) counterparts. To test whether the maladaptive cardiac remodeling observed in the JDP2 KO mice is due to ATF3, ATF3 was removed in the context of JDP2 deficiency, referred as double KO mice (dKO). Mice were challenged by TAC, and followed by detailed physiological, pathological and molecular analyses. dKO mice displayed no apparent differences from WT mice under unstressed condition, except a moderate better performance in dKO male mice. Importantly, following TAC the dKO hearts showed low fibrosis levels, reduced inflammatory and hypertrophic gene expression and a significantly preserved cardiac function as compared with their WT counterparts in both genders. Consistent with these data, removing ATF3 resumed p38 activation in the JDP2 KO mice which correlates with the beneficial cardiac function. Collectively, mice with JDP2 and ATF3 double deficiency had reduced maladaptive cardiac remodeling and lower hypertrophy following TAC. As such, the worsening of the cardiac outcome found in the JDP2 KO mice is due to the elevated ATF3 expression. Simultaneous suppression of both ATF3 and JDP2 activity is highly beneficial for cardiac function in health and disease.
Collapse
Affiliation(s)
- Roy Kalfon
- Department of Cell Biology and Cancer Science, The B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Tom Friedman
- Department of Cell Biology and Cancer Science, The B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
- Cardiac Surgery Department, Rambam Health Care Campus, Haifa, Israel
| | - Shir Eliachar
- Department of Cell Biology and Cancer Science, The B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Rona Shofti
- The Pre-Clinical Research Authority Unit, The Technion, Israel Institute of Technology, Haifa, Israel
| | - Tali Haas
- The Pre-Clinical Research Authority Unit, The Technion, Israel Institute of Technology, Haifa, Israel
| | - Lilach Koren
- Department of Cell Biology and Cancer Science, The B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Jacob D. Moskovitz
- Department of Cell Biology and Cancer Science, The B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Tsonwin Hai
- Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, Ohio United States of America
| | - Ami Aronheim
- Department of Cell Biology and Cancer Science, The B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
- * E-mail:
| |
Collapse
|
12
|
Moreira GCM, Boschiero C, Cesar ASM, Reecy JM, Godoy TF, Trevisoli PA, Cantão ME, Ledur MC, Ibelli AMG, Peixoto JDO, Moura ASAMT, Garrick D, Coutinho LL. A genome-wide association study reveals novel genomic regions and positional candidate genes for fat deposition in broiler chickens. BMC Genomics 2018; 19:374. [PMID: 29783939 PMCID: PMC5963092 DOI: 10.1186/s12864-018-4779-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 05/10/2018] [Indexed: 12/21/2022] Open
Abstract
Background Excess fat content in chickens has a negative impact on poultry production. The discovery of QTL associated with fat deposition in the carcass allows the identification of positional candidate genes (PCGs) that might regulate fat deposition and be useful for selection against excess fat content in chicken’s carcass. This study aimed to estimate genomic heritability coefficients and to identify QTLs and PCGs for abdominal fat (ABF) and skin (SKIN) traits in a broiler chicken population, originated from the White Plymouth Rock and White Cornish breeds. Results ABF and SKIN are moderately heritable traits in our broiler population with estimates ranging from 0.23 to 0.33. Using a high density SNP panel (355,027 informative SNPs), we detected nine unique QTLs that were associated with these fat traits. Among these, four QTL were novel, while five have been previously reported in the literature. Thirteen PCGs were identified that might regulate fat deposition in these QTL regions: JDP2, PLCG1, HNF4A, FITM2, ADIPOR1, PTPN11, MVK, APOA1, APOA4, APOA5, ENSGALG00000000477, ENSGALG00000000483, and ENSGALG00000005043. We used sequence information from founder animals to detect 4843 SNPs in the 13 PCGs. Among those, two were classified as potentially deleterious and two as high impact SNPs. Conclusions This study generated novel results that can contribute to a better understanding of fat deposition in chickens. The use of high density array of SNPs increases genome coverage and improves QTL resolution than would have been achieved with low density. The identified PCGs were involved in many biological processes that regulate lipid storage. The SNPs identified in the PCGs, especially those predicted as potentially deleterious and high impact, may affect fat deposition. Validation should be undertaken before using these SNPs for selection against carcass fat accumulation and to improve feed efficiency in broiler chicken production. Electronic supplementary material The online version of this article (10.1186/s12864-018-4779-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Gabriel Costa Monteiro Moreira
- Department of Animal Science, University of São Paulo (USP) / Luiz de Queiroz College of Agriculture (ESALQ), Piracicaba, São Paulo, 13418-900, Brazil
| | - Clarissa Boschiero
- Department of Animal Science, University of São Paulo (USP) / Luiz de Queiroz College of Agriculture (ESALQ), Piracicaba, São Paulo, 13418-900, Brazil
| | - Aline Silva Mello Cesar
- Department of Animal Science, University of São Paulo (USP) / Luiz de Queiroz College of Agriculture (ESALQ), Piracicaba, São Paulo, 13418-900, Brazil
| | - James M Reecy
- Department of Animal Science, Iowa State University (ISU), Ames, Iowa, USA
| | - Thaís Fernanda Godoy
- Department of Animal Science, University of São Paulo (USP) / Luiz de Queiroz College of Agriculture (ESALQ), Piracicaba, São Paulo, 13418-900, Brazil
| | - Priscila Anchieta Trevisoli
- Department of Animal Science, University of São Paulo (USP) / Luiz de Queiroz College of Agriculture (ESALQ), Piracicaba, São Paulo, 13418-900, Brazil
| | | | | | | | | | | | - Dorian Garrick
- School of Agriculture, Massey University, Ruakura, Hamilton, New Zealand
| | - Luiz Lehmann Coutinho
- Department of Animal Science, University of São Paulo (USP) / Luiz de Queiroz College of Agriculture (ESALQ), Piracicaba, São Paulo, 13418-900, Brazil.
| |
Collapse
|
13
|
Nakade K, Lin CS, Chen XY, Tsai MH, Wuputra K, Zhu ZW, Pan JZ, Yokoyama KK. Jun dimerization protein 2 controls hypoxia-induced replicative senescence via both the p16 Ink4a-pRb and Arf-p53 pathways. FEBS Open Bio 2017; 7:1793-1804. [PMID: 29123987 PMCID: PMC5666393 DOI: 10.1002/2211-5463.12325] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 09/13/2017] [Accepted: 09/22/2017] [Indexed: 11/08/2022] Open
Abstract
The main regulators of replicative senescence in mice are p16Ink4a and Arf, inhibitors of cell cycle progression. Jun dimerization protein 2 (JDP2)-deficient mouse embryonic fibroblasts are resistant to replicative senescence through recruitment of the Polycomb repressive complexes 1 and 2 to the promoter of the gene that encodes p16Ink4a and inhibits the methylation of lysine 27 of the histone H3 locus. However, whether or not JDP2 is able to regulate the chromatin signaling of either p16Ink4a-pRb or Arf-p53, or both, in response to oxidative stress remains elusive. Thus, this study sought to clarify this point. We demonstrated that the introduction of JDP2 leads to upregulation of p16Ink4a and Arf and decreases cell proliferation in the presence of environmental (20% O2), but not in low (3% O2) oxygen. JDP2-mediated growth suppression was inhibited by the downregulation of both p16Ink4a and Arf. Conversely, the forced expression of p16Ink4a or Arf inhibited cell growth even in the absence of JDP2. The downregulation of both the p53 and pRb pathways, but not each individually, was sufficient to block JDP2-dependent growth inhibition. These data suggest that JDP2 induces p16Ink4a and Arf by mediating signals from oxidative stress, resulting in cell cycle arrest via both the p16Ink4a-pRb and Arf-p53 pathways.
Collapse
Affiliation(s)
- Koji Nakade
- Gene Engineering Division RIKEN BioResource Center Tsukuba Japan
| | - Chang-Shen Lin
- Graduate Institute of Medicine Kaohsiung Medical University Taiwan.,Department of Biological Sciences National Sun Yat-sen University Kaohsiung Taiwan
| | - Xiao-Yu Chen
- Institute of Animal Husbandry and Veterinary Zhe Jiang Academy of Agricultural Sciences China
| | - Ming-Ho Tsai
- Graduate Institute of Medicine Kaohsiung Medical University Taiwan.,Center for Stem Cell Research Kaohsiung Medical University Taiwan.,Center of Infectious Disease and Cancer Research Kaohsiung Medical University Taiwan.,Center for Environmental Medicine Kaohsiung Medical University Taiwan
| | - Kenly Wuputra
- Graduate Institute of Medicine Kaohsiung Medical University Taiwan.,Center for Stem Cell Research Kaohsiung Medical University Taiwan.,Center of Infectious Disease and Cancer Research Kaohsiung Medical University Taiwan.,Center for Environmental Medicine Kaohsiung Medical University Taiwan
| | - Zhi-Wei Zhu
- Institute of Animal Husbandry and Veterinary Zhe Jiang Academy of Agricultural Sciences China
| | - Jian-Zhi Pan
- Gene Engineering Division RIKEN BioResource Center Tsukuba Japan.,Institute of Animal Husbandry and Veterinary Zhe Jiang Academy of Agricultural Sciences China
| | - Kazunari K Yokoyama
- Graduate Institute of Medicine Kaohsiung Medical University Taiwan.,Center for Stem Cell Research Kaohsiung Medical University Taiwan.,Center of Infectious Disease and Cancer Research Kaohsiung Medical University Taiwan.,Center for Environmental Medicine Kaohsiung Medical University Taiwan.,Faculty of Molecular Preventive Medicine Graduate School of Medicine The University of Tokyo Japan.,Faculty of Science and Engineering Tokushima Bunri University Sanuki Japan
| |
Collapse
|
14
|
Wang CM, Wang RX, Liu R, Yang WH. Jun Dimerization Protein 2 Activates Mc2r Transcriptional Activity: Role of Phosphorylation and SUMOylation. Int J Mol Sci 2017; 18:ijms18020304. [PMID: 28146118 PMCID: PMC5343840 DOI: 10.3390/ijms18020304] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 01/26/2017] [Indexed: 12/11/2022] Open
Abstract
Jun dimerization protein 2 (JDP2), a basic leucine zipper transcription factor, is involved in numerous biological and cellular processes such as cancer development and regulation, cell-cycle regulation, skeletal muscle and osteoclast differentiation, progesterone receptor signaling, and antibacterial immunity. Though JDP2 is widely expressed in mammalian tissues, its function in gonads and adrenals (such as regulation of steroidogenesis and adrenal development) is largely unknown. Herein, we find that JDP2 mRNA and proteins are expressed in mouse adrenal gland tissues. Moreover, overexpression of JDP2 in Y1 mouse adrenocortical cancer cells increases the level of melanocortin 2 receptor (MC2R) protein. Notably, Mc2r promoter activity is activated by JDP2 in a dose-dependent manner. Next, by mapping the Mc2r promoter, we show that cAMP response elements (between −1320 and −720-bp) are mainly required for Mc2r activation by JDP2 and demonstrate that −830-bp is the major JDP2 binding site by real-time chromatin immunoprecipitation (ChIP) analysis. Mutations of cAMP response elements on Mc2r promoter disrupts JDP2 effect. Furthermore, we demonstrate that removal of phosphorylation of JDP2 results in attenuated transcriptional activity of Mc2r. Finally, we show that JDP2 is a candidate for SUMOylation and SUMOylation affects JDP2-mediated Mc2r transcriptional activity. Taken together, JDP2 acts as a novel transcriptional activator of the mouse Mc2r gene, suggesting that JDP2 may have physiological functions as a novel player in MC2R-mediated steroidogenesis as well as cell signaling in adrenal glands.
Collapse
Affiliation(s)
- Chiung-Min Wang
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, GA 31404, USA.
| | - Raymond X Wang
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, GA 31404, USA.
| | - Runhua Liu
- Department of Genetics and Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
| | - Wei-Hsiung Yang
- Department of Biomedical Sciences, Mercer University School of Medicine, Savannah, GA 31404, USA.
| |
Collapse
|
15
|
Jonak CR, Lainez NM, Roybal LL, Williamson AD, Coss D. c-JUN Dimerization Protein 2 (JDP2) Is a Transcriptional Repressor of Follicle-stimulating Hormone β (FSHβ) and Is Required for Preventing Premature Reproductive Senescence in Female Mice. J Biol Chem 2016; 292:2646-2659. [PMID: 28007961 DOI: 10.1074/jbc.m116.771808] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 12/19/2016] [Indexed: 12/11/2022] Open
Abstract
Follicle-stimulating hormone (FSH) regulates follicular growth and stimulates estrogen synthesis in the ovaries. FSH is a heterodimer consisting of an α subunit, also present in luteinizing hormone, and a unique β subunit, which is transcriptionally regulated by gonadotropin-releasing hormone 1 (GNRH). Because most FSH is constitutively secreted, tight transcriptional regulation is critical for maintaining FSH levels within a narrow physiological range. Previously, we reported that GNRH induces FSHβ (Fshb) transcription via induction of the AP-1 transcription factor, a heterodimer of c-FOS and c-JUN. Herein, we identify c-JUN-dimerization protein 2 (JDP2) as a novel repressor of GNRH-mediated Fshb induction. JDP2 exhibited high basal expression and bound the Fshb promoter at an AP-1-binding site in a complex with c-JUN. GNRH treatment induced c-FOS to replace JDP2 as a c-JUN binding partner, forming transcriptionally active AP-1. Subsequently, rapid c-FOS degradation enabled reformation of the JDP2 complex. In vivo studies revealed that JDP2 null male mice have normal reproductive function, as expected from a negative regulator of the FSH hormone. Female JDP2 null mice, however, exhibited early puberty, observed as early vaginal opening, larger litters, and early reproductive senescence. JDP2 null females had increased levels of circulating FSH and higher expression of the Fshb subunit in the pituitary, resulting in elevated serum estrogen and higher numbers of large ovarian follicles. Disruption of JDP2 function therefore appears to cause early cessation of reproductive function, a condition that has been associated with elevated FSH in women.
Collapse
Affiliation(s)
- Carrie R Jonak
- From the Division of Biomedical Sciences, School of Medicine, University of California, Riverside, California 92521
| | - Nancy M Lainez
- From the Division of Biomedical Sciences, School of Medicine, University of California, Riverside, California 92521
| | - Lacey L Roybal
- From the Division of Biomedical Sciences, School of Medicine, University of California, Riverside, California 92521
| | - Alexa D Williamson
- From the Division of Biomedical Sciences, School of Medicine, University of California, Riverside, California 92521
| | - Djurdjica Coss
- From the Division of Biomedical Sciences, School of Medicine, University of California, Riverside, California 92521
| |
Collapse
|
16
|
Barbarov Y, Timaner M, Alishekevitz D, Hai T, Yokoyama KK, Shaked Y, Aronheim A. Host JDP2 expression in the bone marrow contributes to metastatic spread. Oncotarget 2016; 6:37737-49. [PMID: 26497998 PMCID: PMC4741961 DOI: 10.18632/oncotarget.5648] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 10/02/2015] [Indexed: 12/31/2022] Open
Abstract
The c-Jun Dimerization Protein 2, JDP2, is a basic leucine zipper protein member of the activator protein-1 (AP-1) family of transcription factors. JDP2 typically suppresses gene transcription through multiple mechanisms and plays a dual role in multiple cellular processes, including cell differentiation and proliferation which is dependent on AP-1 function. Whereas the role of JDP2 expression within cancer cells has been studied, its role in stromal cells at the tumor microenvironment is largely unknown. Here we show that mice lacking JDP2 (JDP2−/−) display a reduced rate of metastasis in Lewis lung carcinoma (LLC) and polyoma middle T-antigen (PyMT) breast carcinoma mouse models. The replacement of wild-type bone marrow derived cells (BMDCs) with JDP2-deficient BMDCs recapitulates the metastatic phenotype of JDP2−/− tumor-bearing mice. In vitro, conditioned medium of wild-type BMDCs significantly potentiates the migration and invasion capacity of LLC cells as compared to that of JDP2−/− BMDCs. Furthermore, wild-type BMDCs secrete CCL5, a chemokine known to contribute to metastasis, to a greater extent than JDP2−/− BMDCs. The supplementation of CCL5 in JDP2−/− BMDC conditioned medium was sufficient to potentiate the invasion capacity of LLC. Overall, this study suggests that JDP2-expressing BMDCs within the tumor microenvironment contribute to metastatic spread.
Collapse
Affiliation(s)
- Yelena Barbarov
- Department of Cell Biology and Cancer Science, the B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Michael Timaner
- Department of Cell Biology and Cancer Science, the B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Dror Alishekevitz
- Department of Cell Biology and Cancer Science, the B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Tsonwin Hai
- Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, Ohio, USA
| | - Kazunari K Yokoyama
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yuval Shaked
- Department of Cell Biology and Cancer Science, the B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Ami Aronheim
- Department of Cell Biology and Cancer Science, the B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
17
|
Tsai MH, Wuputra K, Lin YC, Lin CS, Yokoyama KK. Multiple functions of the histone chaperone Jun dimerization protein 2. Gene 2016; 590:193-200. [PMID: 27041241 DOI: 10.1016/j.gene.2016.03.048] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 03/12/2016] [Accepted: 03/22/2016] [Indexed: 11/25/2022]
Abstract
The Jun dimerization protein 2 (JDP2) is part of the family of stress-responsible transcription factors such as the activation protein-1, and binds the 12-O-tetradecanoylphorbol-13-acetateresponse element and the cAMP response element. It also plays a role as a histone chaperone and participates in diverse processes, such as cell-cycle arrest, cell differentiation, apoptosis, senescence, and metastatic spread, and functions as an oncogene and anti-oncogene, and as a cellular reprogramming factor. However, the molecular mechanisms underlying these multiple functions of JDP2 have not been clarified. This review summarizes the structure and function of JDP2, highlighting the specific role of JDP2 in cellular-stress regulation and prevention.
Collapse
Affiliation(s)
- Ming-Ho Tsai
- Graduated Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kenly Wuputra
- Graduated Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yin-Chu Lin
- School of Dentistry, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chang-Shen Lin
- Graduated Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Kazunari K Yokoyama
- Graduated Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Faculty of Science and Engineering, Tokushima Bunri University, Sanuki, Japan; Department of Molecular Preventive Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| |
Collapse
|
18
|
Pulido-Salgado M, Vidal-Taboada JM, Saura J. C/EBPβ and C/EBPδ transcription factors: Basic biology and roles in the CNS. Prog Neurobiol 2015; 132:1-33. [PMID: 26143335 DOI: 10.1016/j.pneurobio.2015.06.003] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 05/08/2015] [Accepted: 06/16/2015] [Indexed: 02/01/2023]
Abstract
CCAAT/enhancer binding protein (C/EBP) β and C/EBPδ are transcription factors of the basic-leucine zipper class which share phylogenetic, structural and functional features. In this review we first describe in depth their basic molecular biology which includes fascinating aspects such as the regulated use of alternative initiation codons in the C/EBPβ mRNA. The physical interactions with multiple transcription factors which greatly opens the number of potentially regulated genes or the presence of at least five different types of post-translational modifications are also remarkable molecular mechanisms that modulate C/EBPβ and C/EBPδ function. In the second part, we review the present knowledge on the localization, expression changes and physiological roles of C/EBPβ and C/EBPδ in neurons, astrocytes and microglia. We conclude that C/EBPβ and C/EBPδ share two unique features related to their role in the CNS: whereas in neurons they participate in memory formation and synaptic plasticity, in glial cells they regulate the pro-inflammatory program. Because of their role in neuroinflammation, C/EBPβ and C/EBPδ in microglia are potential targets for treatment of neurodegenerative disorders. Any strategy to reduce C/EBPβ and C/EBPδ activity in neuroinflammation needs to take into account its potential side-effects in neurons. Therefore, cell-specific treatments will be required for the successful application of this strategy.
Collapse
Affiliation(s)
- Marta Pulido-Salgado
- Biochemistry and Molecular Biology Unit, School of Medicine, University of Barcelona, IDIBAPS, Casanova 143, planta 3, 08036 Barcelona, Spain
| | - Jose M Vidal-Taboada
- Biochemistry and Molecular Biology Unit, School of Medicine, University of Barcelona, IDIBAPS, Casanova 143, planta 3, 08036 Barcelona, Spain
| | - Josep Saura
- Biochemistry and Molecular Biology Unit, School of Medicine, University of Barcelona, IDIBAPS, Casanova 143, planta 3, 08036 Barcelona, Spain.
| |
Collapse
|
19
|
Differential lncRNA expression profiles in brown and white adipose tissues. Mol Genet Genomics 2014; 290:699-707. [DOI: 10.1007/s00438-014-0954-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 11/10/2014] [Indexed: 02/03/2023]
|
20
|
Bovine induced pluripotent stem cells are more resistant to apoptosis than testicular cells in response to mono-(2-ethylhexyl) phthalate. Int J Mol Sci 2014; 15:5011-31. [PMID: 24658443 PMCID: PMC3975437 DOI: 10.3390/ijms15035011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 03/04/2014] [Accepted: 03/06/2014] [Indexed: 12/27/2022] Open
Abstract
Although the androgen receptor (AR) has been implicated in the promotion of apoptosis in testicular cells (TSCs), the molecular pathway underlying AR-mediated apoptosis and its sensitivity to environmental hormones in TSCs and induced pluripotent stem cells (iPSCs) remain unclear. We generated the iPSCs from bovine TSCs via the electroporation of OCT4. The established iPSCs were supplemented with leukemia inhibitory factor and bone morphogenetic protein 4 to maintain and stabilize the expression of stemness genes and their pluripotency. Apoptosis signaling was assessed after exposure to mono-(2-ethylhexyl) phthalate (MEHP), the active metabolite of di-(2-ethylhexyl) phthalate. Here, we report that iPSCs were more resistant to MEHP-induced apoptosis than were original TSCs. MEHP also repressed the expression of AR and inactivated WNT signaling, and then led to the commitment of cells to apoptosis via the cyclin dependent kinase inhibitor p21CIP1. The loss of the frizzed receptor 7 and the gain of p21CIP were responsible for the stimulatory effect of MEHP on AR-mediated apoptosis. Our results suggest that testicular iPSCs can be used to study the signaling pathways involved in the response to environmental disruptors, and to assess the toxicity of environmental endocrine disruptors in terms of the maintenance of stemness and pluripotency.
Collapse
|
21
|
Jun dimerization protein 2 is a critical component of the Nrf2/MafK complex regulating the response to ROS homeostasis. Cell Death Dis 2013; 4:e921. [PMID: 24232097 PMCID: PMC3847324 DOI: 10.1038/cddis.2013.448] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 10/10/2013] [Accepted: 10/14/2013] [Indexed: 02/06/2023]
Abstract
Oxidative stress and reactive oxygen species (ROS) are associated with diseases such as cancer, cardiovascular complications, inflammation and neurodegeneration. Cellular defense systems must work constantly to control ROS levels and to prevent their accumulation. We report here that the Jun dimerization protein 2 (JDP2) has a critical role as a cofactor for transcription factors nuclear factor-erythroid 2-related factor 2 (Nrf2) and small Maf protein family K (MafK) in the regulation of the antioxidant-responsive element (ARE) and production of ROS. Chromatin immunoprecipitation–quantitative PCR (qPCR), electrophoresis mobility shift and ARE-driven reporter assays were carried out to examine the role of JDP2 in ROS production. JDP2 bound directly to the ARE core sequence, associated with Nrf2 and MafK (Nrf2–MafK) via basic leucine zipper domains, and increased DNA-binding activity of the Nrf2–MafK complex to the ARE and the transcription of ARE-dependent genes. In mouse embryonic fibroblasts from Jdp2-knockout (Jdp2 KO) mice, the coordinate transcriptional activation of several ARE-containing genes and the ability of Nrf2 to activate expression of target genes were impaired. Moreover, intracellular accumulation of ROS and increased thickness of the epidermis were detected in Jdp2 KO mice in response to oxidative stress-inducing reagents. These data suggest that JDP2 is required to protect against intracellular oxidation, ROS activation and DNA oxidation. qPCR demonstrated that several Nrf2 target genes such as heme oxygenase-1, glutamate–cysteine ligase catalytic and modifier subunits, the notch receptor ligand jagged 1 and NAD(P)H dehydrogenase quinone 1 are also dependent on JDP2 for full expression. Taken together, these results suggest that JDP2 is an integral component of the Nrf2–MafK complex and that it modulates antioxidant and detoxification programs by acting via the ARE.
Collapse
|
22
|
Androgen receptor-mediated apoptosis in bovine testicular induced pluripotent stem cells in response to phthalate esters. Cell Death Dis 2013; 4:e907. [PMID: 24201806 PMCID: PMC3847308 DOI: 10.1038/cddis.2013.420] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 09/09/2013] [Accepted: 09/24/2013] [Indexed: 12/26/2022]
Abstract
The androgen receptor (AR) has a critical role in promoting androgen-dependent and -independent apoptosis in testicular cells. However, the molecular mechanisms that underlie the ligand-independent apoptosis, including the activity of AR in testicular stem cells, are not completely understood. In the present study, we generated induced pluripotent stem cells (iPSCs) from bovine testicular cells by electroporation of octamer-binding transcription factor 4 (OCT4). The cells were supplemented with leukemia inhibitory factor and bone morphogenetic protein 4, which maintained and stabilized the expression of stemness genes and pluripotency. The iPSCs were used to assess the apoptosis activity following exposure to phthalate esters, including di (2-ethyhexyl) phthalates, di (n-butyl) phthalate, and butyl benzyl phthalate. Phthalate esters significantly reduced the expression of AR in iPSCs and induced a higher ratio of BAX/BCL-2, thereby favoring apoptosis. Phthalate esters also increased the expression of cyclin-dependent kinase inhibitor 1 (p21Cip1) in a p53-dependent manner and enhanced the transcriptional activity of p53. The forced expression of AR and knockdown of p21Cip1 led to the rescue of the phthalate-mediated apoptosis. Overall, this study suggests that testicular iPSCs are a useful system for screening the toxicity of environmental disruptors and examining their effect on the maintenance of stemness and pluripotency, as well as for identifying the iPSC signaling pathway(s) that are deregulated by these chemicals.
Collapse
|
23
|
Chiou SS, Wang SSW, Wu DC, Lin YC, Kao LP, Kuo KK, Wu CC, Chai CY, Lin CLS, Lee CY, Liao YM, Wuputra K, Yang YH, Wang SW, Ku CC, Nakamura Y, Saito S, Hasegawa H, Yamaguchi N, Miyoshi H, Lin CS, Eckner R, Yokoyama KK. Control of Oxidative Stress and Generation of Induced Pluripotent Stem Cell-like Cells by Jun Dimerization Protein 2. Cancers (Basel) 2013; 5:959-84. [PMID: 24202329 PMCID: PMC3795374 DOI: 10.3390/cancers5030959] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 07/12/2013] [Accepted: 07/18/2013] [Indexed: 12/12/2022] Open
Abstract
We report here that the Jun dimerization protein 2 (JDP2) plays a critical role as a cofactor for the transcription factors nuclear factor-erythroid 2-related factor 2 (Nrf2) and MafK in the regulation of the antioxidants and production of reactive oxygen species (ROS). JDP2 associates with Nrf2 and MafK (Nrf2-MafK) to increase the transcription of antioxidant response element-dependent genes. Oxidative-stress-inducing reagent led to an increase in the intracellular accumulation of ROS and cell proliferation in Jdp2 knock-out mouse embryonic fibroblasts. In Jdp2-Cre mice mated with reporter mice, the expression of JDP2 was restricted to granule cells in the brain cerebellum. The induced pluripotent stem cells (iPSC)-like cells were generated from DAOY medulloblastoma cell by introduction of JDP2, and the defined factor OCT4. iPSC-like cells expressed stem cell-like characteristics including alkaline phosphatase activity and some stem cell markers. However, such iPSC-like cells also proliferated rapidly, became neoplastic, and potentiated cell malignancy at a later stage in SCID mice. This study suggests that medulloblastoma cells can be reprogrammed successfully by JDP2 and OCT4 to become iPSC-like cells. These cells will be helpful for studying the generation of cancer stem cells and ROS homeostasis.
Collapse
Affiliation(s)
- Shyh-Shin Chiou
- Division of Hematology-Oncology, Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; E-Mails: (C.-Y.L.); (Y.-M.L.)
- Department of Pediatrics, Faculty of Medicine, School of Medicine, Kaohsiung Medical University, 807 Kaohsiung 807, Taiwan
| | - Sophie Sheng-Wen Wang
- Department of Gastroenterology, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; E-Mails: (S.S.-W.W.); (D.-C.W.); (S.-W.W.)
| | - Deng-Chyang Wu
- Department of Gastroenterology, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; E-Mails: (S.S.-W.W.); (D.-C.W.); (S.-W.W.)
| | - Ying-Chu Lin
- School of Dentistry, College of Dentistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan; E-Mail:
| | - Li-Pin Kao
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 807 Kaohsiung 807, Taiwan; E-Mails: (L.-P.K.); (C.-L.S.L.); (K.W.); (C.-C.K.); (S.S.); (C.-S.L.)
| | - Kung-Kai Kuo
- Department of Surgery, Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; E-Mails: (K.-K.K.); (Y.-H.Y.)
| | - Chun-Chieh Wu
- Department of Pathology, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; E-Mails: (C.-C.W.); (C.-Y.C.)
| | - Chee-Yin Chai
- Department of Pathology, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; E-Mails: (C.-C.W.); (C.-Y.C.)
| | - Cheng-Lung Steve Lin
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 807 Kaohsiung 807, Taiwan; E-Mails: (L.-P.K.); (C.-L.S.L.); (K.W.); (C.-C.K.); (S.S.); (C.-S.L.)
| | - Cheng-Yi Lee
- Division of Hematology-Oncology, Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; E-Mails: (C.-Y.L.); (Y.-M.L.)
- Department of Pediatrics, Faculty of Medicine, School of Medicine, Kaohsiung Medical University, 807 Kaohsiung 807, Taiwan
| | - Yu-Mei Liao
- Division of Hematology-Oncology, Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; E-Mails: (C.-Y.L.); (Y.-M.L.)
- Department of Pediatrics, Faculty of Medicine, School of Medicine, Kaohsiung Medical University, 807 Kaohsiung 807, Taiwan
| | - Kenly Wuputra
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 807 Kaohsiung 807, Taiwan; E-Mails: (L.-P.K.); (C.-L.S.L.); (K.W.); (C.-C.K.); (S.S.); (C.-S.L.)
| | - Ya-Han Yang
- Department of Surgery, Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; E-Mails: (K.-K.K.); (Y.-H.Y.)
| | - Shin-Wei Wang
- Department of Gastroenterology, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan; E-Mails: (S.S.-W.W.); (D.-C.W.); (S.-W.W.)
| | - Chia-Chen Ku
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 807 Kaohsiung 807, Taiwan; E-Mails: (L.-P.K.); (C.-L.S.L.); (K.W.); (C.-C.K.); (S.S.); (C.-S.L.)
| | - Yukio Nakamura
- RIKEN BioResource Center, Tsukuba, Ibaraki 305-0074, Japan; E-Mails: (Y.N.); (H.M.)
| | - Shigeo Saito
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 807 Kaohsiung 807, Taiwan; E-Mails: (L.-P.K.); (C.-L.S.L.); (K.W.); (C.-C.K.); (S.S.); (C.-S.L.)
- Saito Laboratory of Cell Technology, Yaita, Tochigi 329-1571, Japan
| | - Hitomi Hasegawa
- Graduate School of Pharmaceutical Science, Chiba University, Chiba 260-8675, Japan; E-Mails: (H.H.); (N.Y.)
| | - Naoto Yamaguchi
- Graduate School of Pharmaceutical Science, Chiba University, Chiba 260-8675, Japan; E-Mails: (H.H.); (N.Y.)
| | - Hiroyuki Miyoshi
- RIKEN BioResource Center, Tsukuba, Ibaraki 305-0074, Japan; E-Mails: (Y.N.); (H.M.)
| | - Chang-Sheng Lin
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 807 Kaohsiung 807, Taiwan; E-Mails: (L.-P.K.); (C.-L.S.L.); (K.W.); (C.-C.K.); (S.S.); (C.-S.L.)
| | - Richard Eckner
- Department of Biochemistry & Molecular Biology, UMDNJ-New Jersey Medical School, Newark, NJ 07101, USA; E-Mail:
| | - Kazunari K. Yokoyama
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, 807 Kaohsiung 807, Taiwan; E-Mails: (L.-P.K.); (C.-L.S.L.); (K.W.); (C.-C.K.); (S.S.); (C.-S.L.)
| |
Collapse
|
24
|
Abstract
Diabetes and metabolic disorders are leading causes of micro- and macrovascular complications. Furthermore, efforts to treat these complications are hampered by metabolic memory, a phenomenon in which prior exposure to hyperglycemia predisposes diabetic patients to the continued development of vascular diseases despite subsequent glycemic control. Persistently increased levels of oxidant stress and inflammatory genes are key features of these pathologies. Biochemical and molecular studies showed that hyperglycemia induced activation of NF-κB, signaling and actions of advanced glycation end products and other inflammatory mediators play key roles in the expression of pathological genes. In addition, epigenetic mechanisms such as posttranslational modification of histones and DNA methylation also play central roles in gene regulation by affecting chromatin structure and function. Recent studies have suggested that dysregulation of such epigenetic mechanisms may be involved in metabolic memory leading to persistent changes in the expression of genes associated with diabetic vascular complications. Further exploration of these mechanisms by also taking advantages of recent advances in high throughput epigenomics technologies will greatly increase our understanding of epigenetic variations in diabetes and its complications. This in turn can lead to the development of novel new therapies.
Collapse
Affiliation(s)
- Marpadga A Reddy
- Department of Diabetes, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | | |
Collapse
|
25
|
Rynes J, Donohoe CD, Frommolt P, Brodesser S, Jindra M, Uhlirova M. Activating transcription factor 3 regulates immune and metabolic homeostasis. Mol Cell Biol 2012; 32:3949-62. [PMID: 22851689 PMCID: PMC3457521 DOI: 10.1128/mcb.00429-12] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 07/18/2012] [Indexed: 12/20/2022] Open
Abstract
Integration of metabolic and immune responses during animal development ensures energy balance, permitting both growth and defense. Disturbed homeostasis causes organ failure, growth retardation, and metabolic disorders. Here, we show that the Drosophila melanogaster activating transcription factor 3 (Atf3) safeguards metabolic and immune system homeostasis. Loss of Atf3 results in chronic inflammation and starvation responses mounted primarily by the larval gut epithelium, while the fat body suffers lipid overload, causing energy imbalance and death. Hyperactive proinflammatory and stress signaling through NF-κB/Relish, Jun N-terminal kinase, and FOXO in atf3 mutants deregulates genes important for immune defense, digestion, and lipid metabolism. Reducing the dose of either FOXO or Relish normalizes both lipid metabolism and gene expression in atf3 mutants. The function of Atf3 is conserved, as human ATF3 averts some of the Drosophila mutant phenotypes, improving their survival. The single Drosophila Atf3 may incorporate the diversified roles of two related mammalian proteins.
Collapse
Affiliation(s)
- Jan Rynes
- Institute for Genetics and Cologne Excellence Cluster in Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Department of Molecular Biology, University of South Bohemia, Ceske Budejovice, Czech Republic
| | - Colin D. Donohoe
- Institute for Genetics and Cologne Excellence Cluster in Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Peter Frommolt
- Bioinformatics Core Facility, CECAD, and Cologne Center for Genomics, Cologne, Germany
| | - Susanne Brodesser
- Lipidomics Core Facility, CECAD, and Institute for Medical Microbiology, Immunology and Hygiene, Cologne, Germany
| | - Marek Jindra
- Biology Center, Academy of Sciences of the Czech Republic, Ceske Budejovice, Czech Republic
| | - Mirka Uhlirova
- Institute for Genetics and Cologne Excellence Cluster in Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| |
Collapse
|
26
|
Darlyuk-Saadon I, Weidenfeld-Baranboim K, Yokoyama KK, Hai T, Aronheim A. The bZIP repressor proteins, c-Jun dimerization protein 2 and activating transcription factor 3, recruit multiple HDAC members to the ATF3 promoter. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2012; 1819:1142-53. [PMID: 22989952 DOI: 10.1016/j.bbagrm.2012.09.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 09/05/2012] [Accepted: 09/10/2012] [Indexed: 12/16/2022]
Abstract
JDP2, is a basic leucine zipper (bZIP) protein displaying a high degree of homology with the stress inducible transcription factor, ATF3. Both proteins bind to cAMP and TPA response elements and repress transcription by multiple mechanisms. Histone deacetylases (HDACs) play a key role in gene inactivation by deacetylating lysine residues on histones. Here we describe the association of JDP2 and ATF3 with HDACs 1, 2-6 and 10. Association of HDAC3 and HDAC6 with JDP2 and ATF3 occurs via direct protein-protein interactions. Only part of the N-terminal bZIP motif of JDP2 and ATF3 basic domain is necessary and sufficient for the interaction with HDACs in a manner that is independent of coiled-coil dimerization. Class I HDACs associate with the bZIP repressors via the DAC conserved domain whereas the Class IIb HDAC6 associates through its C-terminal unique binder of ubiquitin Zn finger domain. Both JDP2 and ATF3 are known to bind and repress the ATF3 promoter. MEF cells treated with histone deacetylase inhibitor, trichostatin A (TSA) display enhanced ATF3 transcription. ATF3 enhanced transcription is significantly reduced in MEF cells lacking both ATF3 and JDP2. Collectively, we propose that the recruitment of multiple HDAC members to JDP2 and ATF3 is part of their transcription repression mechanism.
Collapse
Affiliation(s)
- Ilona Darlyuk-Saadon
- Department of Molecular Genetics, Technion-Israel Institute of Technology, Haifa, Israel.
| | | | | | | | | |
Collapse
|
27
|
Huang YC, Saito S, Yokoyama KK. Histone chaperone Jun dimerization protein 2 (JDP2): role in cellular senescence and aging. Kaohsiung J Med Sci 2012; 26:515-31. [PMID: 20950777 DOI: 10.1016/s1607-551x(10)70081-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Accepted: 06/22/2010] [Indexed: 01/12/2023] Open
Abstract
Transcription factor Jun dimerization protein 2 (JDP2) binds directly to histones and DNA, and inhibits p300-mediated acetylation of core histones and reconstituted nucleosomes that contain JDP2-recognition DNA sequences. The region of JDP2 that encompasses its histone-binding domain and DNA-binding region is essential to inhibit histone acetylation by histone acetyltransferases. Moreover, assays of nucleosome assembly in vitro demonstrate that JDP2 also has histone-chaperone activity. The mutation of the region responsible for inhibition of histone acetyltransferase activity within JDP2 eliminates repression of transcription from the c-jun promoter by JDP2, as well as JDP2-mediated inhibition of retinoic-acid-induced differentiation. Thus JDP2 plays a key role as a repressor of cell differentiation by regulating the expression of genes with an activator protein 1 (AP-1) site via inhibition of histone acetylation and/or assembly and disassembly of nucleosomes. Senescent cells show a series of alterations, including flatten and enlarged morphology, increase in nonspecific acidic β-galactosidase activity, chromatin condensation, and changes in gene expression patterns. The onset and maintenance of senescence are regulated by two tumor suppressors, p53 and retinoblastoma proteins. The expression of p53 and retinoblastoma proteins is regulated by two distinct proteins, p16(Ink4a) and Arf, respectively, which are encoded by cdkn2a. JDP2 inhibits recruitment of the polycomb repressive complexes 1 and 2 (PRC-1 and PRC-2) to the promoter of the gene that encodes p16(Ink4a) and inhibits the methylation of lysine 27 of histone H3 (H3K27). The PRCs associate with the p16(Ink4a)/Arf locus in young proliferating cells and dissociate from it in senescent cells. Therefore, it seems that chromatin-remodeling factors that regulate association and dissociation of PRCs, and are controlled by JDP2, might play an important role in the senescence program. The molecular mechanisms that underlie the action of JDP2 in cellular aging and replicative senescence by mediating the dissociation of PRCs from the p16(Ink4a)/Arf locus are discussed.
Collapse
Affiliation(s)
- Yu-Chang Huang
- Center of Excellence for Environmental Medicine, Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | | | | |
Collapse
|
28
|
Phosphorylation of JDP2 on threonine-148 by the c-Jun N-terminal kinase targets it for proteosomal degradation. Biochem J 2011; 436:661-9. [DOI: 10.1042/bj20101031] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
JDP2 (c-Jun dimerization protein 2) is a member of the basic leucine zipper family of transcription factors that is ubiquitously expressed in all examined cell types. JDP2 is phosphorylated on Thr148 by JNK (c-Jun N-terminal kinase) and p38 kinase, although the functional role of its phosphorylation is unknown. In the present paper we show that the JDP2 protein level is dramatically reduced in response to serum stimulation, anisomycin treatment, ultraviolet light irradiation and cycloheximide treatment, all of which activate the JNK pathway. In addition, endogenous and overexpressed JDP2 are phosphorylated in response to these stimuli. Replacement of Thr148 with an alanine residue stabilizes ectopically expressed JDP2 in the presence of the stimuli; conversely, substitution with glutamic acid destabilizes it. Serum-induced phosphorylation and degradation of JDP2 are specific to JNK activation since a JNK inhibitor (SP600125) abolishes these effects, whereas p38 and MEK inhibitors (SB203580 and UO126) have no effect. In the presence of cycloheximide, JDP2 is rapidly phosphorylated and degraded due to the combined effects of protein synthesis inhibition and activation of JNK. Pre-treatment of cells with SP600125 prior to cycloheximide treatment significantly prolongs the half-life of JDP2 that is found mainly in the unphosphorylated form. Lastly, the proteasome inhibitor (MG132) rescues JDP2 degradation following cycloheximide treatment and increases the expression of the JDP2 phospho-mimetic T148E mutant. Collectively, these results suggest that phosphorylation of JDP2 on thr148 by JNK targets it to the proteasome for degradation.
Collapse
|
29
|
Murata T, Noda C, Saito S, Kawashima D, Sugimoto A, Isomura H, Kanda T, Yokoyama KK, Tsurumi T. Involvement of Jun dimerization protein 2 (JDP2) in the maintenance of Epstein-Barr virus latency. J Biol Chem 2011; 286:22007-16. [PMID: 21525011 DOI: 10.1074/jbc.m110.199836] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Reactivation of the Epstein-Barr virus from latency is dependent on expression of the BZLF1 viral immediate-early protein. The BZLF1 promoter (Zp) normally exhibits only low basal activity but is activated in response to chemical inducers such as 12-O-tetradecanoylphorbol-13-acetate and calcium ionophore. We found that Jun dimerization protein 2 (JDP2) plays a significant role in suppressing Zp activity. Reporter, EMSA, and ChIP assays of a Zp mutant virus revealed JDP2 association with Zp at the ZII cis-element, a binding site for CREB/ATF/AP-1. Suppression of Zp activity by JDP2 correlated with HDAC3 association and reduced levels of histone acetylation. Although introduction of point mutations into the ZII element of the viral genome did not increase the level of BZLF1 production, silencing of endogenous JDP2 gene expression by RNA interference increased the levels of viral early gene products and viral DNA replication. These results indicate that JDP2 plays a role as a repressor of Zp and that its replacement by CREB/ATF/AP-1 at ZII is crucial to triggering reactivation from latency to lytic replication.
Collapse
Affiliation(s)
- Takayuki Murata
- Division of Virology, Aichi Cancer Center Research Institute, 1-1, Kanokoden, Chikusa-ku, Nagoya 464-8681, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Jun dimerization protein 2 controls senescence and differentiation via regulating histone modification. J Biomed Biotechnol 2010; 2011:569034. [PMID: 21197464 PMCID: PMC3005813 DOI: 10.1155/2011/569034] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2010] [Accepted: 09/08/2010] [Indexed: 01/23/2023] Open
Abstract
Transcription factor, Jun dimerization protein 2 (JDP2), binds directly to histones and DNAs and then inhibits the p300-mediated acetylation both of core histones and of reconstituted nucleosomes that contain JDP2 recognition DNA sequences. JDP2 plays a key role as a repressor of adipocyte differentiation by regulation of the expression of the gene
C/EBPδ
via inhibition of histone acetylation. Moreover, JDP2-deficient mouse embryonic fibroblasts (JDP2−/− MEFs)
are resistant to replicative senescence. JDP2 inhibits the recruitment of polycomb repressive complexes (PRC1 and PRC2) to the promoter
of the gene encoding p16Ink4a, resulting from the inhibition of methylation of lysine 27 of histone H3 (H3K27). Therefore, it seems that chromatin-remodeling factors, including the PRC complex controlled by JDP2, may be important players in the senescence program. The novel mechanisms that underline the action of JDP2 in inducing cellular senescence and suppressing adipocyte differentiation are reviewed.
Collapse
|
31
|
Suppression of cell-cycle progression by Jun dimerization protein-2 (JDP2) involves downregulation of cyclin-A2. Oncogene 2010; 29:6245-56. [PMID: 20802531 PMCID: PMC3007677 DOI: 10.1038/onc.2010.355] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We report here a novel role for Jun dimerization protein-2 (JDP2) as a regulator of the progression of normal cells through the cell cycle. To determine the role of JDP2 in vivo, we generated Jdp2-knockout (Jdp2KO) mice by targeting exon-1 to disrupt the site of initiation of transcription. The epidermal thickening of skin from the Jdp2KO mice after treatment with 12-O-tetradecanoylphorbol 13-acetate (TPA) proceeded more rapidly than that of control mice, and more proliferating cells were found at the epidermis. Fibroblasts derived from embryos of Jdp2KO mice proliferated faster and formed more colonies than fibroblasts from wild-type mice. JDP2 was recruited to the promoter of the gene for cyclin-A2 (ccna2) at the AP-1 site. Cells lacking Jdp2 had elevated levels of cyclin-A2 mRNA. Furthermore, reintroduction of JDP2 resulted in the repression of transcription of ccna2 and of cell-cycle progression. Thus, transcription of the gene for cyclin-A2 appears to be a direct target of JDP2 in the suppression of cell proliferation.
Collapse
|
32
|
Nakade K, Wasylyk B, Yokoyama KK. Epigenetic regulation of p16Ink4a and Arf by JDP2 in cellular senescence. Biomol Concepts 2010; 1:49-58. [PMID: 25961985 DOI: 10.1515/bmc.2010.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In response to accumulating cellular stress, cells protect themselves from abnormal growth by entering the senescent stage. Senescence is controlled mainly by gene products from the p16Ink4a/Arf locus. In mouse cells, the expression of p16Ink4a and Arf increases continuously during proliferation in cell culture. Transcription from the locus is under complex control. p16Ink4a and Arf respond independently to positive and negative signals, and the entire locus is epigenetically suppressed by histone methylation that depends on the Polycomb repressive complex-1 and -2 (PRC1 and PRC2). In fact, the PRCs associate with the p16Ink4a/Arf locus in young proliferating cells and dissociate in aged senescent cells. Thus, it seems that chromatin-remodeling factors that regulate association and dissociation of PRCs might be important players in the senescence program. Here, we summarize the molecular mechanisms that mediate cellular aging and introduce the Jun dimerization protein 2 (JDP2) as a factor that regulates replicative senescence by mediating dissociation of PRCs from the p16Ink4a/Arf locus.
Collapse
|
33
|
Cruickshank MN, Besant P, Ulgiati D. The impact of histone post-translational modifications on developmental gene regulation. Amino Acids 2010; 39:1087-105. [PMID: 20204433 DOI: 10.1007/s00726-010-0530-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Accepted: 02/12/2010] [Indexed: 02/06/2023]
Abstract
Eukaryotic genomic DNA is orderly compacted to fit into the nucleus and to inhibit accessibility of specific sequences. DNA is manipulated in many different ways by bound RNA and proteins within the composite material known as chromatin. All of the biological processes that require access to genomic DNA (such as replication, recombination and transcription) therefore are dependent on the precise characteristics of chromatin in eukaryotes. This distinction underlies a fundamental property of eukaryotic versus prokaryotic gene regulation such that chromatin structure must be regulated to precisely repress or relieve repression of particular regions of the genome in an appropriate spatio-temporal manner. As well as playing a key role in structuring genomic DNA, histones are subject to site-specific modifications that can influence the organization of chromatin structure. This review examines the molecular processes regulating site-specific histone acetylation, methylation and phosphorylation with an emphasis on how these processes underpin differentiation-regulated transcription.
Collapse
Affiliation(s)
- Mark N Cruickshank
- Biochemistry and Molecular Biology, School of Biomedical, Biomolecular and Chemical Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA, 6009, Australia
| | | | | |
Collapse
|
34
|
Sekyrova P, Bohmann D, Jindra M, Uhlirova M. Interaction between Drosophila bZIP proteins Atf3 and Jun prevents replacement of epithelial cells during metamorphosis. Development 2010; 137:141-50. [PMID: 20023169 DOI: 10.1242/dev.037861] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Epithelial sheet spreading and fusion underlie important developmental processes. Well-characterized examples of such epithelial morphogenetic events have been provided by studies in Drosophila, and include embryonic dorsal closure, formation of the adult thorax and wound healing. All of these processes require the basic region-leucine zipper (bZIP) transcription factors Jun and Fos. Much less is known about morphogenesis of the fly abdomen, which involves replacement of larval epidermal cells (LECs) with adult histoblasts that divide, migrate and finally fuse to form the adult epidermis during metamorphosis. Here, we implicate Drosophila Activating transcription factor 3 (Atf3), the single ortholog of human ATF3 and JDP2 bZIP proteins, in abdominal morphogenesis. During the process of the epithelial cell replacement, transcription of the atf3 gene declines. When this downregulation is experimentally prevented, the affected LECs accumulate cell-adhesion proteins and their extrusion and replacement with histoblasts are blocked. The abnormally adhering LECs consequently obstruct the closure of the adult abdominal epithelium. This closure defect can be either mimicked and further enhanced by knockdown of the small GTPase Rho1 or, conversely, alleviated by stimulating ecdysone steroid hormone signaling. Both Rho and ecdysone pathways have been previously identified as effectors of the LEC replacement. To elicit the gain-of-function effect, Atf3 specifically requires its binding partner Jun. Our data thus identify Atf3 as a new functional partner of Drosophila Jun during development.
Collapse
Affiliation(s)
- Petra Sekyrova
- Biology Center, Czech Academy of Sciences and Department of Molecular Biology, University of South Bohemia, Ceske Budejovice 37005, Czech Republic
| | | | | | | |
Collapse
|
35
|
Huang YC, Lee IL, Tsai YF, Saito S, Lin YC, Chiou SS, Tsai EM, K. Yokoyama K. Role of Jun dimerization protein 2 (JDP2) in cellular senescence. Inflamm Regen 2010. [DOI: 10.2492/inflammregen.30.507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Yu-Chang Huang
- Center of Excellence for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - I-Liang Lee
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
| | - Yu-Fang Tsai
- Center of Excellence for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shigeo Saito
- Center of Excellence for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Saito laboratory of Cell Technology, Yaita, Tochigi, Japan
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ying-Chu Lin
- Center of Excellence for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shyh-Shin Chiou
- Department of Pediatrics, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Eing-Mei Tsai
- Center of Excellence for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Gynecology, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kazunari K. Yokoyama
- Center of Excellence for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Molecular Preventive Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Gene Engineering Division, RIKEN BioResource Center, Tsukuba, Ibaraki, Japan
| |
Collapse
|
36
|
Buranapramest M, Chakravarti D. Chromatin remodeling and nuclear receptor signaling. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2009; 87:193-234. [PMID: 20374705 DOI: 10.1016/s1877-1173(09)87006-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Nuclear receptors (NRs) constitute a large family of ligand-dependent transcription factors that play key roles in development, differentiation, metabolism, and homeostasis. They participate in these processes by coordinating and regulating the expression of their target genes. The eukaryotic genome is packaged as chromatin and is generally inhibitory to the process of transcription. NRs overcome this barrier by recruiting two classes of chromatin remodelers, histone modifying enzymes and ATP-dependent chromatin remodelers. These remodelers alter chromatin structure at target gene promoters by posttranslational modification of histone tails and by disrupting DNA-histone interactions, respectively. In the presence of ligand, NRs promote transcription by recruiting remodeling enzymes that increase promoter accessibility to the basal transcription machinery. In the absence of ligand a subset of NRs recruit remodelers that establish and maintain a closed chromatin environment, to ensure efficient gene silencing. This chapter reviews the chromatin remodeling enzymes associated with NR gene control, with an emphasis on the mechanisms of NR-mediated repression.
Collapse
Affiliation(s)
- Manop Buranapramest
- Division of Reproductive Biology Research, Department of Obstetrics and Gynecology, Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA
| | | |
Collapse
|
37
|
Rasmussen MH, Wang B, Wabl M, Nielsen AL, Pedersen FS. Activation of alternative Jdp2 promoters and functional protein isoforms in T-cell lymphomas by retroviral insertion mutagenesis. Nucleic Acids Res 2009; 37:4657-71. [PMID: 19502497 PMCID: PMC2724284 DOI: 10.1093/nar/gkp469] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Retroviral insertional mutagenesis has been instrumental for the identification of genes important in cancer development. The molecular mechanisms involved in retroviral-mediated activation of proto-oncogenes influence the distribution of insertions within specific regions during tumorigenesis and hence may point to novel gene structures. From a retroviral tagging screen on tumors of 1767 SL3-3 MLV-infected BALB/c mice, intron 2 of the AP-1 repressor Jdp2 locus was found frequently targeted by proviruses resulting in upregulation of non-canonical RNA subspecies. We identified several promoter regions within 1000 bp upstream of exon 3 that allowed for the production of Jdp2 protein isoforms lacking the histone acetylase inhibitory domain INHAT present in canonical Jdp2. The novel Jdp2 isoforms localized to the nucleus and over-expression in murine fibroblast cells induced cell death similar to canonic Jdp2. When expressed in the context of oncogenic NRAS both full length Jdp2 and the shorter isoforms increased anchorage-independent growth. Our results demonstrate a biological function of Jdp2 lacking the INHAT domain and suggest a post-genomic application for the use of retroviral tagging data in identifying new gene products with a potential role in tumorigenesis.
Collapse
|
38
|
Nakade K, Pan J, Yamasaki T, Murata T, Wasylyk B, Yokoyama KK. JDP2 (Jun Dimerization Protein 2)-deficient mouse embryonic fibroblasts are resistant to replicative senescence. J Biol Chem 2009; 284:10808-17. [PMID: 19233846 PMCID: PMC2667768 DOI: 10.1074/jbc.m808333200] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 02/19/2009] [Indexed: 12/23/2022] Open
Abstract
JDP2 (Jun dimerization protein 2, an AP-1 transcription factor) is involved in the regulation of the differentiation and proliferation of cells. We report here that JDP2-deficient mouse embryonic fibroblasts (Jdp2(-/-) MEF) are resistant to replicative senescence. In the absence of JDP2, the level of expression of p16(Ink4a), which is known to rise as normal fibroblasts age, fell significantly when cells were cultured for more than 2 months. Conversely, the overexpression of JDP2 induced the expression of genes for p16(Ink4a) and p19(Arf). Moreover, at the promoter of the gene for p16(Ink4a) in Jdp2(-/-) MEF, the extent of methylation of lysine 27 of histone H3 (H3K27), which is important for gene silencing, increased. Polycomb-repressive complexes (PRC-1 and PRC-2), which are responsible for histone methylation, bound efficiently to the promoter to repress the expression of the gene for p16(Ink4a). As a result, JDP2-deficient MEF became resistant to replicative senescence. Our results indicate that JDP2 is involved in the signaling pathway for senescence via epigenetic regulation of the expression of the gene for p16(Ink4a).
Collapse
Affiliation(s)
- Koji Nakade
- Gene Engineering Division, RIKEN BioResource Center, 3-1-1 Koyadai, Tsukuba, Ibaraki 305-0074, Japan.
| | | | | | | | | | | |
Collapse
|
39
|
Weidenfeld-Baranboim K, Hasin T, Darlyuk I, Heinrich R, Elhanani O, Pan J, Yokoyama KK, Aronheim A. The ubiquitously expressed bZIP inhibitor, JDP2, suppresses the transcription of its homologue immediate early gene counterpart, ATF3. Nucleic Acids Res 2009; 37:2194-203. [PMID: 19233874 PMCID: PMC2673429 DOI: 10.1093/nar/gkp083] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
JDP2 is a ubiquitously expressed bZIP repressor protein. JDP2 binds TPA response element and cyclic AMP response element located within various promoters. JDP2 displays a high degree of homology to the immediate early gene ATF3. ATF3 plays a crucial role in the cellular adaptive response to multiple stress insults as well as growth stimuli. We have identified ATF3 as a potential target gene for JDP2 repression. JDP2 regulates the ATF3 promoter potentially through binding to both the consensus ATF/CRE site and a non-consensus ATF3 auto-repression DNA-binding element. Expression of ATF3 protein in wild-type mouse embryo fibroblast (MEF) cells is below the detectable levels, whereas, JDP2 disrupted MEF cells display noticeable level of ATF3 protein. Following either serum or ER stress stimulation, ATF3 expression is potentiated in JDP2-KO fibroblast cells as compared with wild-type cells. Mice with either JDP2 over-expression or JDP2 disruption display undetectable level of ATF3 protein. However, ATF3 induction in response to either growth or stress signals is dependent on JDP2 expression level. ATF3 induction is attenuated in JDP2 over-expressing mice whereas is potentiated in JDP2-KO mice as compared with the corresponding wild-type mice. Collectively, the data presented strongly suggest that JDP2 plays a role in the determination of the ATF3 adaptive cellular threshold response to different stress insults and growth stimuli.
Collapse
Affiliation(s)
- Keren Weidenfeld-Baranboim
- Department of Molecular Genetics, The Rappaport Family Institute for Research in the Medical Sciences, Technion-Israel Institute of Technology, Haifa 31096, Israel
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Kimura M. IRF2-binding protein-1 is a JDP2 ubiquitin ligase and an inhibitor of ATF2-dependent transcription. FEBS Lett 2008; 582:2833-7. [PMID: 18671972 DOI: 10.1016/j.febslet.2008.07.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2008] [Revised: 06/10/2008] [Accepted: 07/02/2008] [Indexed: 10/21/2022]
Abstract
Jun-dimerization protein 2 (JDP2) is a member of the activating protein-1 (AP-1) family of transcription factors. JDP2 dimerizes with other AP-1 proteins such as activating transcription factor-2 (ATF2) and Jun to repress transcription from promoters that contain a cyclic AMP-responsive element (CRE). Interferon regulatory factor-2-binding protein-1 (IRF2-BP1), which is reported to be a transcriptional corepressor of IRF2, was isolated as a JDP2-binding protein using an epitope-tagging method. As anticipated from the presence of a RING-finger domain, IRF2-BP1 enhanced the polyubiquitination of JDP2. Moreover, IRF2-BP1 repressed ATF2-mediated transcriptional activation from a CRE-containing promoter.
Collapse
Affiliation(s)
- Makoto Kimura
- Gene Engineering Division, RIKEN, 3-1-1 Koyadai, Tsukuba, Ibaraki, Japan.
| |
Collapse
|
41
|
Weidenfeld-Baranboim K, Bitton-Worms K, Aronheim A. TRE-dependent transcription activation by JDP2-CHOP10 association. Nucleic Acids Res 2008; 36:3608-19. [PMID: 18463134 PMCID: PMC2441799 DOI: 10.1093/nar/gkn268] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The c-Jun dimerization protein 2, JDP2, is a member of the activating protein 1 (AP-1) family of transcription factors. Overexpression of JDP2 has been shown to result in repression of AP-1-dependent transcription and inhibition of cellular transformation. Other studies suggested that JDP2 may function as an oncogene. Here we describe the identification of CHOP10, a member of the CCAAT enhancer binding proteins, as a protein associating with JDP2. In contrast to the inhibition of transcription by JDP2, JDP2–CHOP complex strongly enhances transcription from promoters containing TPA response elements (TRE), but not from those containing cyclic AMP response elements (CRE). The association between JDP2 and CHOP10 involves the leucine zipper motifs of both proteins, whereas, the basic domain of CHOP10 contributes to the association of the JDP2–CHOP10 complex with the DNA. DNA binding of JDP2–CHOP complex is observed both in vitro and in vivo. Finally, overexpression of JDP2 results in increased cell viability following ER stress and counteracts CHOP10 pro-apoptotic activity. JDP2 expression may determine the threshold for cell sensitivity to ER stress. This is the first report describing TRE-dependent activation of transcription by JDP2 and thus may provide an explanation for the as yet unexplored oncogenic properties of JDP2.
Collapse
Affiliation(s)
- Keren Weidenfeld-Baranboim
- Department of Molecular Genetics, The Rappaport Family Institute for Research in the Medical Sciences, Technion-Israel Institute of Technology, 1 Efron St. Bat-Galim, Haifa 31096, Israel
| | | | | |
Collapse
|
42
|
Chérasse Y, Chaveroux C, Jousse C, Maurin AC, Carraro V, Parry L, Fafournoux P, Bruhat A. Role of the repressor JDP2 in the amino acid-regulated transcription of CHOP. FEBS Lett 2008; 582:1537-41. [PMID: 18396163 DOI: 10.1016/j.febslet.2008.03.050] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2008] [Revised: 03/25/2008] [Accepted: 03/25/2008] [Indexed: 10/22/2022]
Abstract
The transcriptional activation of CHOP (C/EBP-homologous protein) by amino acid deprivation involves ATF2 and ATF4 binding at the amino acid response element within the promoter. In this report, we investigate the role of JDP2 (Jun Dimerization Protein 2) in the amino acid control of CHOP transcription following amino acid starvation. Our results show that JDP2 binds to the CHOP AARE in unstimulated cells and that its binding decreases following amino acid starvation. We demonstrate that JDP2 acts as a repressor and suggest that it could be functionally associated with HDAC3 to inhibit CHOP transcription.
Collapse
Affiliation(s)
- Yoan Chérasse
- UMR 1019 of Human Nutrition, INRA de Theix, 63122 Saint Genès Champanelle, France
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Murata T, Shinozuka Y, Obata Y, Yokoyama KK. Phosphorylation of two eukaryotic transcription factors, Jun dimerization protein 2 and activation transcription factor 2, in Escherichia coli by Jun N-terminal kinase 1. Anal Biochem 2008; 376:115-21. [PMID: 18307971 DOI: 10.1016/j.ab.2008.01.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2007] [Accepted: 01/14/2008] [Indexed: 11/29/2022]
Abstract
Recombinant eukaryotic proteins are frequently produced in Escherichia coli and such proteins are often used for biochemical studies in vitro. However, proteins produced in this way are not modified chemically, for example, by phosphorylation, acetylation, methylation, sumoylation, or ubiquitination, during their synthesis in bacterial cells. We constructed vectors for expression in E. coli of human Jun N-terminal kinase 1 (JNK1), mouse Aurora kinase B (Aurkb), and the histone acetyltransferase (HAT) domain of P/CAF. These expression vectors included the origin of replication of p15A and the origin of replication of pBR322 or ColE1. Using these expression vectors in E. coli, we were able to phosphorylate mouse and human Jun dimerization protein 2 (JDP2) and human activation transcription factor 2 (ATF-2) by the action of human JNK1 that was expressed simultaneously. Moreover, the tail region of mouse histone H3 was phosphorylated and acetylated, respectively, by Aurkb and by the HAT domain of P/CAF. We also observed that the interaction of ATF-2 with JDP2 was prevented when ATF-2 was phosphorylated. Our expression systems for production of enzyme-modified proteins in E. coli should be widely applicable and useful for biochemical studies of chemically modified eukaryotic proteins in vitro.
Collapse
Affiliation(s)
- Takehide Murata
- Gene Engineering Division, RIKEN BioResource Center, 3-1-1 Koyadai, Tsukuba, Ibaraki 305-0074, Japan.
| | | | | | | |
Collapse
|