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Zhao X, Kang Z, Han R, Wang M, Wang Y, Sun X, Wang C, Zhou J, Cao L, Lu M. JWA binding to NCOA4 alleviates degeneration in dopaminergic neurons through suppression of ferritinophagy in Parkinson's disease. Redox Biol 2024; 73:103190. [PMID: 38744191 PMCID: PMC11109895 DOI: 10.1016/j.redox.2024.103190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/11/2024] [Accepted: 05/11/2024] [Indexed: 05/16/2024] Open
Abstract
Parkinson's disease (PD) poses a significant challenge in neurodegenerative disorders, characterized by the progressive loss of dopaminergic (DA) neurons in the substantia nigra pars compacta (SNc). The intricate mechanisms orchestrating DA neurodegeneration in PD are not fully understood, necessitating the exploration of innovative therapeutic approaches. Recent studies have implicated ferroptosis as a major contributor to the loss of DA neurons, revealing a complex interplay between iron accumulation and neurodegeneration. However, the sophisticated nature of this process challenges the conventional belief that mere iron removal could effectively prevent DA neuronal ferroptosis. Here, we report JWA, alternatively referred to as ARL6IP5, as a negative regulator of ferroptosis, capable of ameliorating DA neuronal loss in the context of PD. In this study, synchronized expression patterns of JWA and tyrosine hydroxylase (TH) in PD patients and mice were observed, underscoring the importance of JWA for DA neuronal survival. Screening of ferroptosis-related genes unraveled the engagement of iron metabolism in the JWA-dependent inhibition of DA neuronal ferroptosis. Genetic manipulation of JWA provided compelling evidence linking its neuroprotective effects to the attenuation of NCOA4-mediated ferritinophagy. Molecular docking, co-immunoprecipitation, and immunofluorescence studies confirmed that JWA mitigated DA neuronal ferroptosis by occupying the ferritin binding site of NCOA4. Moreover, the JWA-activating compound, JAC4, demonstrated promising neuroprotective effects in cellular and animal PD models by elevating JWA expression, offering a potential avenue for neuroprotection in PD. Collectively, our work establishes JWA as a novel regulator of ferritinophagy, presenting a promising therapeutic target for addressing DA neuronal ferroptosis in PD.
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Affiliation(s)
- Xinxin Zhao
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China
| | - Zhengwei Kang
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China
| | - Ruixue Han
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China
| | - Min Wang
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China
| | - Yueping Wang
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China
| | - Xin Sun
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China
| | - Cong Wang
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China
| | - Jianwei Zhou
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, 211166, Nanjing, China; Changzhou Second People's Hospital, Changzhou Medical Center, Nanjing Medical University, 213000, Changzhou, China
| | - Lei Cao
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China; Changzhou Second People's Hospital, Changzhou Medical Center, Nanjing Medical University, 213000, Changzhou, China.
| | - Ming Lu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing 211166, China; Changzhou Second People's Hospital, Changzhou Medical Center, Nanjing Medical University, 213000, Changzhou, China.
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Zou L, Che Z, Ding K, Zhang C, Liu X, Wang L, Li A, Zhou J. JAC4 Alleviates Rotenone-Induced Parkinson's Disease through the Inactivation of the NLRP3 Signal Pathway. Antioxidants (Basel) 2023; 12:antiox12051134. [PMID: 37238000 DOI: 10.3390/antiox12051134] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/01/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
Parkinson's disease (PD) is the fastest-growing neurodegeneration disease, characterized typically by a progressive loss of dopaminergic neurons in the substantia nigra, and there are no effective therapeutic agents to cure PD. Rotenone (Rot) is a common and widely used pesticide which can directly inhibit mitochondrial complex I, leading to a loss of dopaminergic neurons. Our previous studies proved that the JWA gene (arl6ip5) may play a prominent role in resisting aging, oxidative stress and inflammation, and JWA knockout in astrocytes increases the susceptibility of mice to 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD. JWA-activating compound 4 (JAC4) is a small-molecule activator of the JWA gene, but its role in and mechanism against PD have not yet been clarified. In the present study, we showed that the JWA expression level is strongly related to tyrosine hydroxylase (TH) in different growth periods of mice. Additionally, we constructed models with Rot in vivo and in vitro to observe the neuroprotective effects of JAC4. Our results demonstrated that JAC4 prophylactic intervention improved motor dysfunction and dopaminergic neuron loss in mice. Mechanistically, JAC4 reduced oxidative stress damage by reversing mitochondrial complex I damage, reducing nuclear factor kappa-B (NF-κB) translocation and repressing nucleotide-binding domain, leucine-rich-containing family and pyrin domain-containing-3 (NLRP3) inflammasome activation. Overall, our results provide proof that JAC4 could serve as a novel effective agent for PD prevention.
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Affiliation(s)
- Lu Zou
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Zhen Che
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Kun Ding
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Chao Zhang
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xia Liu
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Luman Wang
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Aiping Li
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jianwei Zhou
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
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Targeting JWA for Cancer Therapy: Functions, Mechanisms and Drug Discovery. Cancers (Basel) 2022; 14:cancers14194655. [PMID: 36230577 PMCID: PMC9564207 DOI: 10.3390/cancers14194655] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 11/25/2022] Open
Abstract
Simple Summary JWA has been identified as a potential therapeutic target for several cancers. In this review, we summarize the tumor suppressive functions of the JWA gene and its role in anti-cancer drug development. The focus is on elucidating the key regulatory proteins up and downstream of JWA and their signaling networks. We also discuss current strategies for targeting JWA (JWA peptides, small molecule agonists, and JWA-targeted Pt (IV) prodrugs). Abstract Tumor heterogeneity limits the precision treatment of targeted drugs. It is important to find new tumor targets. JWA, also known as ADP ribosylation factor-like GTPase 6 interacting protein 5 (ARL6IP5, GenBank: AF070523, 1998), is a microtubule-associated protein and an environmental response gene. Substantial evidence shows that JWA is low expressed in a variety of malignancies and is correlated with overall survival. As a tumor suppressor, JWA inhibits tumor progression by suppressing multiple oncogenes or activating tumor suppressor genes. Low levels of JWA expression in tumors have been reported to be associated with multiple aspects of cancer progression, including angiogenesis, proliferation, apoptosis, metastasis, and chemotherapy resistance. In this review, we will discuss the structure and biological functions of JWA in tumors, examine the potential therapeutic strategies for targeting JWA and explore the directions for future investigation.
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Zhou Y, Liu J, Li X, Wang L, Hu L, Li A, Zhou J. JAC4 Protects from X-Ray Radiation-Induced Intestinal Injury by JWA-Mediated Anti-Oxidation/Inflammation Signaling. Antioxidants (Basel) 2022; 11:antiox11061067. [PMID: 35739964 PMCID: PMC9220415 DOI: 10.3390/antiox11061067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 02/01/2023] Open
Abstract
Radiation-induced intestinal injury is one of the major side effects in patients receiving radiation therapy. There is no specific treatment for radiation-induced enteritis in the clinic. We synthesized a compound, named JAC4, which is an agonist and can increase JWA protein expression. JWA has been shown to reduce oxidative stress, DNA damage, anti-apoptosis, and anti-inflammatory; in addition, the small intestine epithelium showed dysplasia in JWA knockout mice. We hypothesized that JAC4 might exert a protective effect against radiation-induced intestinal damage. Herein, X-ray radiation models were built both in mice and in intestinal crypt epithelial cells (IEC-6). C57BL/6J mice were treated with JAC4 by gavage before abdominal irradiation (ABI); the data showed that JAC4 significantly reduced radiation-induced intestinal mucosal damage and increased the survival rate. In addition, radiation-induced oxidative stress damage and systemic inflammatory response were also mitigated by JAC4 treatment. Moreover, JAC4 treatment alleviated DNA damage, decreased cell apoptosis, and maintained intestinal epithelial cell proliferation in mice. In vitro data showed that JAC4 treatment significantly inhibited ROS formation and cell apoptosis. Importantly, all the above protective effects of JAC4 on X-ray radiation-triggered intestinal injury were no longer determined in the intestinal epithelium of JWA knockout mice. Therefore, our results provide the first evidence that JAC4 protects the intestine from radiation-induced enteritis through JWA-mediated anti-oxidation/inflammation signaling.
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Affiliation(s)
- Yan Zhou
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China; (Y.Z.); (J.L.); (X.L.); (L.W.); (A.L.)
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Jingwen Liu
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China; (Y.Z.); (J.L.); (X.L.); (L.W.); (A.L.)
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Xiong Li
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China; (Y.Z.); (J.L.); (X.L.); (L.W.); (A.L.)
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Luman Wang
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China; (Y.Z.); (J.L.); (X.L.); (L.W.); (A.L.)
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Lirong Hu
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Pharmaceutical Co., Ltd., Nanjing 210042, China;
| | - Aiping Li
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China; (Y.Z.); (J.L.); (X.L.); (L.W.); (A.L.)
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
| | - Jianwei Zhou
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China; (Y.Z.); (J.L.); (X.L.); (L.W.); (A.L.)
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, 101 Longmian Avenue, Nanjing 211166, China
- Correspondence:
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Kim JY, Bahar E, Lee JY, Chang S, Kim SH, Park EY, Do SI, Yoon H, Kim HS. ARL6IP5 reduces cisplatin-resistance by suppressing DNA repair and promoting apoptosis pathways in ovarian carcinoma. Cell Death Dis 2022; 13:239. [PMID: 35293383 PMCID: PMC8924236 DOI: 10.1038/s41419-022-04568-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 12/31/2021] [Accepted: 01/20/2022] [Indexed: 11/18/2022]
Abstract
Ovarian carcinoma (OC) is the most lethal gynecological malignancy due to frequent recurrence resulting from cisplatin-resistance. ARL6IP5 is a novel gene implicated to suppress cisplatin-resistance by activating apoptosis and inhibiting DNA repair through XRCC1 and PARP1. We investigated the clinicopathological and prognostic significance of the immunohistochemical ARL6IP5 expression on 79 post-chemotherapy OC patient tissue samples; in vitro, the effect of ARL6IP5 overexpression (OE) and knockdown (KD) on cancer hallmark functions and the effect of ARL6IP5 on the expression of DNA repair and apoptosis-related proteins were observed in OC cells and their cisplatin-resistant (CisR) counterparts. ARL6IP5 expression was significantly associated with chemotherapeutic response and was an independent prognosticator of progression-free and overall survival of high-grade serous OC patients. ARL6IP5-OE decreased cellular proliferation, invasion, migration, adhesion, and increased apoptosis (p < 0.05); the opposite was observed for ARL6IP5-KD. Notably, ARL6IP5-OE reduced cisplatin-resistance of both OC and CisR OC cells, while ARL6IP5-KD increased cisplatin-resistance (p < 0.05). ARL6IP5-OE suppressed the expressions of DNA repair proteins and increased those of pro-apoptotic proteins; the opposite was observed for ARL6IP5-KD. The recombinant ARL6IP5 protein (rARL6IP5) had the greatest apoptotic effect among cisplatin and olaparib, in both OC and CisR OC cells; moreover, rARL6IP5 was the only single agent in CisR OC cells to retain higher apoptotic efficacy compared with control (p < 0.05), indicating that the apoptotic pathway influenced by rARL6IP5 remained effective in CisR OC cells compared to cisplatin and olaparib. In conclusion, we demonstrated that ARL6IP5 is an independent prognosticator of OC patients with cellular functions of a tumor-suppressor, possibly influencing the development of cisplatin-resistance and progression of OC cells through regulation of DNA repair and apoptosis. rARL6IP5 had significantly greater apoptotic efficacy compared to conventional chemotherapeutic agents in both OC and CisR OC cells, suggesting that ARL6IP5 may be a valuable novel chemotherapeutic against CisR OC.
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Bang J, Han M, Yoo TJ, Qiao L, Jung J, Na J, Carlson BA, Gladyshev VN, Hatfield DL, Kim JH, Kim LK, Lee BJ. Identification of Signaling Pathways for Early Embryonic Lethality and Developmental Retardation in Sephs1-/- Mice. Int J Mol Sci 2021; 22:ijms222111647. [PMID: 34769078 PMCID: PMC8583877 DOI: 10.3390/ijms222111647] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 12/13/2022] Open
Abstract
Selenophosphate synthetase 1 (SEPHS1) plays an essential role in cell growth and survival. However, the underlying molecular mechanisms remain unclear. In the present study, the pathways regulated by SEPHS1 during gastrulation were determined by bioinformatical analyses and experimental verification using systemic knockout mice targeting Sephs1. We found that the coagulation system and retinoic acid signaling were most highly affected by SEPHS1 deficiency throughout gastrulation. Gene expression patterns of altered embryo morphogenesis and inhibition of Wnt signaling were predicted with high probability at E6.5. These predictions were verified by structural abnormalities in the dermal layer of Sephs1−/− embryos. At E7.5, organogenesis and activation of prolactin signaling were predicted to be affected by Sephs1 knockout. Delay of head fold formation was observed in the Sephs1−/− embryos. At E8.5, gene expression associated with organ development and insulin-like growth hormone signaling that regulates organ growth during development was altered. Consistent with these observations, various morphological abnormalities of organs and axial rotation failure were observed. We also found that the gene sets related to redox homeostasis and apoptosis were gradually enriched in a time-dependent manner until E8.5. However, DNA damage and apoptosis markers were detected only when the Sephs1−/− embryos aged to E9.5. Our results suggest that SEPHS1 deficiency causes a gradual increase of oxidative stress which changes signaling pathways during gastrulation, and afterwards leads to apoptosis.
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Affiliation(s)
- Jeyoung Bang
- Interdisciplinary Program in Bioinformatics, College of Natural Sciences, Seoul National University, Seoul 08826, Korea; (J.B.); (M.H.)
| | - Minguk Han
- Interdisciplinary Program in Bioinformatics, College of Natural Sciences, Seoul National University, Seoul 08826, Korea; (J.B.); (M.H.)
| | - Tack-Jin Yoo
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea; (T.-J.Y.); (L.Q.); (J.J.); (J.N.); (J.-H.K.)
| | - Lu Qiao
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea; (T.-J.Y.); (L.Q.); (J.J.); (J.N.); (J.-H.K.)
| | - Jisu Jung
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea; (T.-J.Y.); (L.Q.); (J.J.); (J.N.); (J.-H.K.)
| | - Jiwoon Na
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea; (T.-J.Y.); (L.Q.); (J.J.); (J.N.); (J.-H.K.)
| | - Bradley A. Carlson
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (B.A.C.); (D.L.H.)
| | - Vadim N. Gladyshev
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
| | - Dolph L. Hatfield
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; (B.A.C.); (D.L.H.)
| | - Jin-Hong Kim
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea; (T.-J.Y.); (L.Q.); (J.J.); (J.N.); (J.-H.K.)
| | - Lark Kyun Kim
- Severance Biomedical Science Institute, Graduate School of Medical Science, Brain Korea 21 Project, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06230, Korea
- Correspondence: (L.K.K.); (B.J.L.); Tel.: +82-2-880-6775 (B.J.L.)
| | - Byeong Jae Lee
- Interdisciplinary Program in Bioinformatics, College of Natural Sciences, Seoul National University, Seoul 08826, Korea; (J.B.); (M.H.)
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Korea; (T.-J.Y.); (L.Q.); (J.J.); (J.N.); (J.-H.K.)
- Correspondence: (L.K.K.); (B.J.L.); Tel.: +82-2-880-6775 (B.J.L.)
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Zhang Y, Chen J, Che Z, Shu C, Chen D, Ding K, Li A, Zhou J. JP3 enhances the toxicity of cisplatin on drug-resistant gastric cancer cells while reducing the damage to normal cells. J Cancer 2021; 12:1894-1906. [PMID: 33753987 PMCID: PMC7974513 DOI: 10.7150/jca.50306] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 01/03/2021] [Indexed: 01/26/2023] Open
Abstract
Background: Cisplatin (DDP) is a highly effective chemotherapeutic agent to most solid tumors including gastric cancer (GC), however, its clinical value is limited due to severe toxic side effects and secondary drug resistance. JP3, a JWA protein based MMP2-targeted polypeptide, known to inhibit the growth of GC in vivo. However, the bidirectional effects of JP3 in DDP-resistant GC and normal cells have not been demonstrated. The present study aims to investigate the actions of JP3 on protecting normal cells from the toxicity of DDP while enhancing its anti-tumor effects on GC cells. Methods: Routine laboratory experimental methods including CCK-8 assay, Western blotting, Hoechst staining, immunofluorescence (IF) and qRT-PCR were used in mechanism investigation; protein docking analysis and coimmunoprecipitation (Co-IP) were used for prediction and confirmation of interactions between JP3 and CK2. Mouse xenograft model was used for screening the treatment of JP3 plus DDP on GC growth. Results: DDP showed similar toxicities to normal cells and DDP-resistant GC cells; JP3 competitively inhibited the binding of XRCC1 to CK2, reduced the DNA repair and anti-apoptosis capacity of DDP-resistant GC cells in combination with DDP treatment; meanwhile, JP3 protected normal cells from DDP-induced oxidative stress and DNA damage through ERK/Nrf2 signaling. JP3 combined with DDP showed similar bidirectional effects in vivo. Conclusions: JP3 enhanced the inhibitory effects of DDP on tumor growth while reduced toxic side effects of DDP on normal cells. The results of this study provide a new insight for the treatment of drug-resistant GC.
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Affiliation(s)
- Yi Zhang
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Junjie Chen
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Zhen Che
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Chuanjun Shu
- Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing 211166, China
| | - Dongyin Chen
- Department of Medicinal Chemistry, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Kun Ding
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Aiping Li
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Jianwei Zhou
- Department of Molecular Cell Biology & Toxicology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China.,The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
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Role of Astrocytic Dysfunction in the Pathogenesis of Parkinson's Disease Animal Models from a Molecular Signaling Perspective. Neural Plast 2020; 2020:1859431. [PMID: 32089670 PMCID: PMC7029263 DOI: 10.1155/2020/1859431] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 05/26/2019] [Indexed: 11/18/2022] Open
Abstract
Despite the fact that astrocytes are the most abundant glial cells, critical for brain function, few studies have dealt with their possible role in neurodegenerative diseases like Parkinson's disease (PD). This article explores relevant evidence on the involvement of astrocytes in experimental PD neurodegeneration from a molecular signaling perspective. For a long time, astrocytic proliferation was merely considered a byproduct of neuroinflammation, but by the time being, it is clear that astrocytic dysfunction plays a far more important role in PD pathophysiology. Indeed, ongoing experimental evidence suggests the importance of astrocytes and dopaminergic neurons' cross-linking signaling pathways. The Wnt-1 (wingless-type MMTV integration site family, member 1) pathway regulates several processes including neuron survival, synapse plasticity, and neurogenesis. In PD animal models, Frizzled (Fzd) neuronal receptors' activation by the Wnt-1 normally released by astrocytes following injuries leads to β-catenin-dependent gene expression, favoring neuron survival and viability. The transient receptor potential vanilloid 1 (TRPV1) capsaicin receptor also participates in experimental PD genesis. Activation of astrocyte TRPV1 receptors by noxious stimuli results in reduced inflammatory response and increased ciliary neurotrophic factor (CNTF) synthesis, which enhances neuronal survival and differentiation. Another major pathway involves IκB kinase (IKK) downregulation by ARL6ip5 (ADP-ribosylation-like factor 6 interacting protein 5, encoded by the cell differentiation-associated, JWA, gene). Typically, IKK releases the proinflammatory NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) molecule from its inhibitor. Therefore, by downregulating NF-κB inhibitor, ARL6ip5 promotes an anti-inflammatory response. The evidence provided by neurotoxin-induced PD animal models guarantees further research on the neuroprotective potential of normalizing astrocyte function in PD.
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Kim JT, Cho HJ, Cho MY, Lim J, Park ES, Lim JS, Lee HG. Prenylated Rab acceptor RABAC1 inhibits anti-apoptotic protein BCL2A1 and induces apoptosis. Biochem Biophys Res Commun 2019; 513:940-946. [PMID: 31003775 DOI: 10.1016/j.bbrc.2019.04.080] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 04/11/2019] [Indexed: 01/13/2023]
Abstract
The B cell lymphoma 2 (BCL2) family of proteins constitutes a critical intracellular checkpoint in the intrinsic apoptosis pathway. Among BCL2 members, the anti-apoptotic protein BCL2A1 mediates the resistance to BCL2 inhibitors and may be considered as a target for anti-cancer therapy. Here, we report that prenylated Rab acceptor 1 (RABAC1 or PRA1) inhibits the anti-apoptotic activity of BCL2A1 and induces apoptosis in AGS gastric cancer cells. Protein interaction of BCL2A1 and RABAC1 was verified by an in-vitro glutathione-S-transferase pull-down assay, immunoprecipitation, and confocal microscopy. When apoptosis was induced by cisplatin, the anti-apoptotic activity of BCL2A1 was blocked by RABAC1 expression. RABAC1 caused caspase-3 activation and decreased cell proliferation, clonogenic cell survival, and cell migration and invasion. We suggest RABAC1 as a potential therapeutic target for BCL2A1-related cancer.
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Affiliation(s)
- Jong-Tae Kim
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Hee Jun Cho
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Mi-Young Cho
- SKKU Advanced Institute of Nanotechnology, Suwon, Republic of Korea
| | - Jeewon Lim
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea; Department of Biomolecular Science, University of Science and Technology, Daejeon, Republic of Korea
| | - Eun Sun Park
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea; Department of Biomolecular Science, University of Science and Technology, Daejeon, Republic of Korea
| | - Jong-Seok Lim
- Department of Biological Science and Cellular Heterogeneity Research Center, Sookmyung Women's University, Seoul, Republic of Korea.
| | - Hee Gu Lee
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea; Department of Biomolecular Science, University of Science and Technology, Daejeon, Republic of Korea.
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10
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Xu L, Cheng L, Yang F, Pei B, Liu X, Zhou J, Zhu Y, Wang S. JWA suppresses the invasion of human breast carcinoma cells by downregulating the expression of CXCR4. Mol Med Rep 2018; 17:8137-8144. [PMID: 29658570 PMCID: PMC5983986 DOI: 10.3892/mmr.2018.8866] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 03/29/2018] [Indexed: 01/11/2023] Open
Abstract
Breast cancer is the second leading cause of cancer-associated mortality, and metastatic breast cancer is responsible for 90% of patient mortalities. Given that JWA represses the proliferation, invasion and metastasis of a number of other human tumor cells, including melanoma, esophageal, hepatocellular and gastric carcinomas, via mitogen-activated protein kinase or integrin signaling, the present study investigated the expression and function of JWA in human breast cancers. The results showed that the expression level of JWA was significantly reduced in human primary breast cancers when compared with the paired adjacent tissues. Downregulating JWA enhanced, while overexpressing JWA suppressed, the migration and invasion abilities of the two breast cancer cell lines, MDA-MB-468 and MDA-MB-231, without affecting their proliferations in vitro. In addition, JWA negatively regulated the surface expression of CXCR4 in the two cell lines via proteasome degradation, though not via transcriptional inhibition. Functionally, normalizing the disturbed expressions of CXCR4 largely reversed the inhibitory effect of JWA on cell invasion. These data demonstrated that JWA suppressed the migration/invasion of breast carcinoma cells by downregulating the expression of CXCR4, and suggested that JWA may harbor prognostic and therapeutic potential in patients with breast cancer.
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Affiliation(s)
- Lingyun Xu
- Department of Breast Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213003, P.R. China
| | - Lin Cheng
- Department of Breast Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213003, P.R. China
| | - Fangliang Yang
- Department of Breast Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213003, P.R. China
| | - Bei Pei
- Department of Breast Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213003, P.R. China
| | - Xiaoan Liu
- Department of Breast Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Jianwei Zhou
- Department of Molecular Cell Biology and Toxicology, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Yulan Zhu
- Department of Breast Surgery, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213003, P.R. China
| | - Shui Wang
- Department of Breast Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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Qi H, Li A. JWA deficiency induces malignant transformation of murine embryonic fibroblast cells. Exp Ther Med 2018; 15:3509-3515. [PMID: 29545876 DOI: 10.3892/etm.2018.5688] [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: 09/30/2015] [Accepted: 03/03/2017] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to investigate the effects of JWA knockout (JWA-/-) on malignant transformation of murine embryonic fibroblast (MEF) cells using a conditional JWA-/- mouse model. Once MEF cells were prepared, the potential role of JWA-/- on proliferation, migration, invasion and colony formation of MEF cells was investigated by cytological examination. The effects of JWA-/- on the regulation and protein expression levels of epithelial-mesenchymal transition (EMT)-related proteins in MEF cells, including poly(ADP-ribose) polymerase-1 (PARP-1), vimentin, β-catenin and E-cadherin, were investigated using western blot analysis. The tumorigenicity of JWA deficiency was explored using nude mouse xenografts and subcutaneous inoculation of MEF cells exhibiting JWA-/-. JWA-/- was able to increase cell proliferation, migration, invasion and colony formation in the malignant transformation of MEF cells. The protein expression levels of PARP-1, vimentin and β-catenin were upregulated, whereas E-cadherin was downregulated in JWA-/- MEF cells. The tumor formation was observed in mice following subcutaneous inoculation of MEF with JWA-/-, whereas no tumor was formed in the mice treated with functional JWA MEF cells. In conclusion, the present findings suggest that JWA-/- has important roles in cell proliferation, migration, invasion and colony formation and is able to induce the malignant transformation of MEF cells. The expression levels of EMT-related proteins changed and tumorigenicity increased in JWA-/- MEF cells compared with cells with functional JWA. The present findings indicate that JWA may function as an anti-oncogene in tumorigenesis.
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Affiliation(s)
- Hong Qi
- Department of Molecular Cell Biology and Toxicology, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Aiping Li
- Department of Molecular Cell Biology and Toxicology, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
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Astrocytic JWA deletion exacerbates dopaminergic neurodegeneration by decreasing glutamate transporters in mice. Cell Death Dis 2018; 9:352. [PMID: 29500411 PMCID: PMC5834463 DOI: 10.1038/s41419-018-0381-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 02/01/2018] [Accepted: 02/05/2018] [Indexed: 12/29/2022]
Abstract
Astrocytic JWA exerts neuroprotective roles by alleviating oxidative stress and inhibiting inflammation. However, the molecular mechanisms of how astrocytic JWA is involved in dopaminergic neurodegeneration in Parkinson's disease (PD) remain largely unknown. In this study, we found that astrocyte-specific JWA knockout mice (JWA CKO) exacerbated dopamine (DA) neuronal loss and motor dysfunction, and reduced the levels of DA and its metabolites in a 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine/probenecid (MPTP/p)-induced PD model. Astrocytic JWA deficiency repressed expression of excitatory amino-acid transporter 2 (GLT-1) and glutamate uptake both in vivo and in vitro. Further, the regulation of GLT-1 expression was involved in JWA-triggered activation of the MAPK and PI3K signaling pathways. JWA-increased GLT-1 expression was abolished by inhibitors of MEK and PI3K. Silencing CREB also abrogated JWA-increased GLT-1 expression and glutamate uptake. Additionally, JWA deficiency activated glial fibrillary acidic protein (GFAP), and increased the expression of STAT3. Similarly to the MPTP model, paraquat (PQ) exposure produced PD-like phenotypes in JWA CKO mice. Taken together, our findings provide novel insights into astrocytic JWA function in the pathogenesis of neurotoxin mouse models of PD.
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Wei B, Han Q, Xu L, Zhang X, Zhu J, Wan L, Jin Y, Qian Z, Wu J, Gao Y, Zhou J, Chen X. Effects of JWA, XRCC1 and BRCA1 mRNA expression on molecular staging for personalized therapy in patients with advanced esophageal squamous cell carcinoma. BMC Cancer 2015; 15:331. [PMID: 25925371 PMCID: PMC4469327 DOI: 10.1186/s12885-015-1364-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 04/24/2015] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND DNA damage repair genes JWA, XRCC1 and BRCA1 were associated with clinical outcomes and could convert the response to the cisplatin-based therapy in some carcinomas. The synergistic effects of JWA, XRCC1 and BRCA1 mRNA expression on personalized therapy remain unknown in advanced esophageal squamous cell carcinoma (ESCC). METHODS We employed quantitative real-time polymerase chain reaction (qPCR) to determine the expression of JWA, XRCC1 and BRCA1 mRNA in paraffin-embedded specimen from 172 patients with advanced ESCC who underwent the first-line cisplatin-or docetaxel-based treatments. RESULTS High JWA or XRCC1mRNA expression was correlated with longer median overall survival (mOS) in all the patients (both P<0.001) or in subgroups with different regimens (all P<0.05), but not correlated with response rate (RR, all P>0.05). Multivariate analysis revealed that high JWA (HR 0.22; 95% CI 0.13-0.37; P<0.001) or XRCC1 (HR 0.36; 95% CI 0.21-0.63; P<0.001) mRNA expression emerged as the independent prognostic factors for ESCC patients in this cohort. But no significant difference in prognostic efficacy was found between JWA plus XRCC1 and JWA alone through ROC analysis. Further subgroup analysis showed cisplatin-based treatments could improve mOS of patients with low JWA expression (P<0.05), especially in those with low BRCA1 expression simultaneously (P<0.001); while in patients with high JWA expression, high BRCA1 mRNA expression was correlated with increased mOS in docetaxel-based treatments (P=0.044). CONCLUSION JWA, XRCC1and BRCA1 mRNA expression could be used as predictive markers in molecular staging for personalized therapy in patients with advanced ESCC who received first-line cisplatin- or docetaxel-based treatments.
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Affiliation(s)
- Bin Wei
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
| | - Qin Han
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
| | - Lijuan Xu
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
| | - Xiaohui Zhang
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
| | - Jing Zhu
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
| | - Li Wan
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
| | - Yan Jin
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
| | - Zhaoye Qian
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
| | - Jingjing Wu
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
| | - Yong Gao
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
| | - Jianwei Zhou
- Department of Molecular Cell Biology and Toxicology, Jiangsu Key Lab of Cancer Biomarkers, Prevention & Treatment Cancer Center; School of Public Health, Nanjing Medical University, Nanjing, 210029, China.
| | - Xiaofei Chen
- Department of Medical Oncology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, 223300, China.
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JWA reverses cisplatin resistance via the CK2-XRCC1 pathway in human gastric cancer cells. Cell Death Dis 2014; 5:e1551. [PMID: 25476899 PMCID: PMC4649833 DOI: 10.1038/cddis.2014.517] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 10/08/2014] [Accepted: 10/29/2014] [Indexed: 12/16/2022]
Abstract
Gastric cancer is the third most common malignancy in China, with a median 5-year survival of only 20%. Cisplatin has been used in first-line cancer treatment for several types of cancer including gastric cancer. However, patients are often primary resistant or develop acquired resistance resulting in relapse of the cancer and reduced survival. Recently, we demonstrated that the reduced expression of base excision repair protein XRCC1 and its upstream regulator JWA in gastric cancerous tissues correlated with a significant survival benefit of adjuvant first-line platinum-based chemotherapy as well as XRCC1 playing an important role in the DNA repair of cisplatin-resistant gastric cancer cells. In the present study, we demonstrated the role of JWA in cisplatin-induced DNA lesions and aquired cisplatin resistance in five cell-culture models: gastric epithelial cells GES-1, cisplatin-sensitive gastric cancer cell lines BGC823 and SGC7901, and the cisplatin-resistant gastric cancer cell lines BGC823/DDP and SGC7901/DDP. Our results indicated that JWA is required for DNA repair following cisplatin-induced double-strand breaks (DSBs) via XRCC1 in normal gastric epithelial cells. However, in gastric cancer cells, JWA enhanced cisplatin-induced cell death through regulation of DNA damage-induced apoptosis. The protein expression of JWA was significantly decreased in cisplatin-resistant cells and contributed to cisplatin resistance. Interestingly, as JWA upregulated XRCC1 expression in normal cells, JWA downregulated XRCC1 expression through promoting the degradation of XRCC1 in cisplatin-resistant gastric cancer cells. Furthermore, the negative regulation of JWA to XRCC1 was blocked due to the mutation of 518S/519T/523T residues of XRCC1, and indicating that the CK2 activated 518S/519T/523T phosphorylation is a key point in the regulation of JWA to XRCC1. In conclusion, we report for the first time that JWA regulated cisplatin-induced DNA damage and apoptosis through the CK2—P-XRCC1—XRCC1 pathway, indicating a putative drug target for reversing cisplatin resistance in gastric cancer.
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Sha S, Xu J, Lu ZH, Hong J, Qu WJ, Zhou JW, Chen L. Lack of JWA Enhances Neurogenesis and Long-Term Potentiation in Hippocampal Dentate Gyrus Leading to Spatial Cognitive Potentiation. Mol Neurobiol 2014; 53:355-368. [PMID: 25432888 DOI: 10.1007/s12035-014-9010-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Accepted: 11/14/2014] [Indexed: 01/28/2023]
Abstract
JWA (Arl6ip5), a homologous gene of glutamate-transporter-associated protein 3-18 (GTRAP3-18) and addicsin, is highly expressed in hippocampus. We generated systemic and neuronal JWA knockout (JWA-KO and JWA-nKO) mice to investigate the influence of JWA deficiency on spatial cognitive performance, process of neurogenesis, and induction of long-term potentiation (LTP) in hippocampal dentate gyrus (DG). In comparison with wild-type (WT) mice and JWA (loxP/loxP) (control of JWA-nKO) mice, 8-week-old JWA-KO mice and JWA-nKO mice showed spatial cognitive potentiation as assessed by Morris water maze test. In hippocampal DG of JWA-nKO mice, either survival and migration or neurite growth of newborn neurons were significantly enhanced without the changes in proliferation and differentiation of stem cells. In addition, the increase of LTP amplitude and the decline of LTP threshold were observed in DG, but not in CA1 region, of JWA-nKO mice compared to control mice. The levels of hippocampal FAK, Akt, and mTOR phosphorylation in JWA-nKO mice were higher than those in control mice. The PI3K or FAK inhibitor could abolish the enhanced neurogenesis and LTP induction in JWA-nKO mice, which was accompanied by disappearance of the spatial cognitive potentiation. The treatment of JWA-nKO mice with 3'-azido-3'-deoxythymidine (AZT), a telomerase inhibitor, suppressed not only the enhanced neurogenesis but also the enhanced LTP induction in DG, but it did not affect the LTP induction in CA1 region. The results suggest that the JWA deficiency through cascading FAK-PI3K-Akt-mTOR pathway increases the newborn neurons and enhances the LTP induction in hippocampal DG, which leads to the spatial cognitive potentiation.
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Affiliation(s)
- Sha Sha
- Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, 210029, China
- Department of Physiology, Nanjing Medical University, Hanzhong Road 140, Nanjing, Jiangsu, 210029, China
| | - Jin Xu
- Department of Molecular Cell Biology and Toxicology, School of Public Health, Nanjing Medical University, Hanzhong Road 140, Nanjing, Jiangsu, 210029, China
| | - Zi-Hong Lu
- Department of Physiology, Nanjing Medical University, Hanzhong Road 140, Nanjing, Jiangsu, 210029, China
| | - Juan Hong
- Department of Physiology, Nanjing Medical University, Hanzhong Road 140, Nanjing, Jiangsu, 210029, China
| | - Wei-Jun Qu
- Department of Physiology, Nanjing Medical University, Hanzhong Road 140, Nanjing, Jiangsu, 210029, China
| | - Jian-Wei Zhou
- Department of Molecular Cell Biology and Toxicology, School of Public Health, Nanjing Medical University, Hanzhong Road 140, Nanjing, Jiangsu, 210029, China.
| | - Ling Chen
- Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu, 210029, China.
- Department of Physiology, Nanjing Medical University, Hanzhong Road 140, Nanjing, Jiangsu, 210029, China.
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Miao SH, Sun HB, Ye Y, Yang JJ, Shi YW, Lu M, Hu G, Zhou JW. Astrocytic JWA expression is essential to dopaminergic neuron survival in the pathogenesis of Parkinson's disease. CNS Neurosci Ther 2014; 20:754-62. [PMID: 24628733 DOI: 10.1111/cns.12249] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 02/09/2014] [Accepted: 02/13/2014] [Indexed: 12/26/2022] Open
Abstract
AIMS To investigate the role of astrocytic JWA expression in dopaminergic (DA) neuron degeneration and in the pathogenesis of Parkinson's disease (PD). METHODS Conditional astrocytic JWA null (JWA∆2/∆2/GFAP-Cre) mice and U251 glioma cells were used to evaluate the effects of JWA gene on DA neuron degeneration. The oxidative stress-driven molecular events were determined in both in vivo and in vitro models. RESULTS Conditional astrocytic JWA knockout resulted in significant activation of astrocytes measured by increase in glial fibrillary acidic protein-positive cells (1.34×10(3)±74.5 vs. 8.44×10(3)±1.35×10(3), P<0.01) in mouse substantia nigra, accompanied by loss of DA neurons (1.03×10(4)±238 vs. 6.17×10(3)±392, P<0.001). Deficiency of JWA significantly aggravated reactive oxygen species (ROS) accumulation in substantia nigra compared with the wild-type mice. Increasing JWA expression in U251 glioma cells inhibited ROS with a concomitant increase in intracellular glutathione. Furthermore, suppression of IKKβ-nuclear factor (NF)-κB signaling pathway was shown to regulate JWA in a PD model. CONCLUSIONS The JWA gene exerts neuroprotective roles against DA neuronal degeneration via modulating intracellular redox status and NF-κB signaling pathway and is a potential treatment target for PD.
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Affiliation(s)
- Shu-Han Miao
- Department of Molecular Cell Biology and Toxicology, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
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Synergistic role between p53 and JWA: prognostic and predictive biomarkers in gastric cancer. PLoS One 2012; 7:e52348. [PMID: 23285001 PMCID: PMC3528747 DOI: 10.1371/journal.pone.0052348] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Accepted: 11/12/2012] [Indexed: 12/28/2022] Open
Abstract
Expression of p53 appears to be correlated to prognosis in patients with malignancy, but its role in gastric carcinoma has remained controversial. Recently we reported that JWA, an ADP-ribosylation-like factor 6 interacting protein 5 (ARL6ip5), was both prognostic for overall survival and predictive for platinum-based treatment of gastric cancer. In this study, we aimed to investigate p53 expression as a prognostic and predictive marker in resectable gastric cancer, alone and in combination with JWA. Expression of p53 was examined in three large patient cohorts (total n = 1155) of gastric cancer. High expression of p53 was significantly correlated with unfavorable clinicopathologic parameters and decreased overall patient survival. Furthermore, patients with high p53 expression in tumors acquired remarkable survival benefit from adjuvant first-line platinum-based-chemotherapy. The synergy between p53 and JWA in predicting patient outcome was demonstrated, while no significantly elevated predictive value concerning chemotherapy was observed. Thus, p53 expression is a potent prognostic and predictive factor for resectable gastric cancer with adjuvant platinum-based chemotherapy. A combined effect of p53 with JWA as efficient prognostic indicators was found for the first time.
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Wang S, Wu X, Chen Y, Zhang J, Ding J, Zhou Y, He S, Tan Y, Qiang F, Bai J, Zeng J, Gong Z, Li A, Li G, Røe OD, Zhou J. Prognostic and predictive role of JWA and XRCC1 expressions in gastric cancer. Clin Cancer Res 2012; 18:2987-96. [PMID: 22452940 DOI: 10.1158/1078-0432.ccr-11-2863] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PURPOSE To investigate the expression pattern and significance of DNA repair genes JWA and X-ray repair cross complement group 1 (XRCC1) in gastric cancer. EXPERIMENTAL DESIGN Expressions of JWA and XRCC1 were assessed by immunohistochemistry in a training cohort and they went into a second testing cohort and finally to a validating cohort. Prognostic and predictive role of JWA and XRCC1 expression status in cases treated with surgery alone or combined with adjuvant chemotherapy was evaluated, respectively. RESULTS JWA and XRCC1 protein levels were significantly downregulated in gastric cancer lesions compared with adjacent noncancerous tissues. Low tumoral JWA or XRCC1 expression significantly correlated with shorter overall survival (OS), as well as with clinicopathologic characteristics in patients without adjuvant treatment. Multivariate regression analysis showed that low JWA and XRCC1 expressions, separately and together, were independent negative markers of OS. Adjuvant fluorouracil-leucovorin-oxaliplatin (FLO) significantly improved OS compared with surgery alone (log-rank test, P = 0.01). However, this effect was evident only in the JWA or XRCC1 low expression group (HR = 0.44; 95% CI: 0.26-0.73; P = 0.002, and HR = 0.44, 95% CI: 0.26-0.75; P = 0.002, respectively); Adjuvant fluorouracil-leucovorin-platinol (FLP) did not improve OS, except in the patients with low JWA and XRCC1 expressions (P = 0.010 for JWA and 0.024 for XRCC1, respectively). CONCLUSIONS JWA and XRCC1 protein expressions in tumor are novel candidate prognostic markers and predictive factors for benefit from adjuvant platinum-based chemotherapy (FLO or FLP) in resectable human gastric carcinoma.
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Affiliation(s)
- Shouyu Wang
- Department of Molecular Cell Biology and Toxicology, Jiangsu Key Lab of Cancer Biomarkers, Prevention & Treatment, Cancer Center; School of Public Health, Nanjing Medical University, Nanjing, People's Republic of China
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Shen L, Xu W, Li A, Ye J, Zhou J. JWA enhances As₂O₃-induced tubulin polymerization and apoptosis via p38 in HeLa and MCF-7 cells. Apoptosis 2012; 16:1177-93. [PMID: 21847655 DOI: 10.1007/s10495-011-0637-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Arsenic trioxide (As₂O₃) has potential anti-cancer activity against a wide range of carcinomas via apoptosis induction or oncoprotein degradation. The mechanisms involved are not fully elucidated. Here, we demonstrated that As₂O₃ induced-apoptosis in HeLa and MCF-7 cancer cells was in part triggered by tubulin polymerization. High expression of JWA promoted tubulin polymerization and increased the sensitivity of the cancer cells to As₂O₃. The activation of the p38 MAPK (mitogen-activated protein kinases) signaling pathway was found to contribute to JWA-promoted tubulin polymerization. Our results suggest that JWA may serve as an effective enhancer of microtubule-targeted As₂O₃ anti-cancer therapy.
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Affiliation(s)
- Lianlian Shen
- Department of Molecular Cell Biology & Toxicology, The Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, 140 Hanzhong Road, Nanjing 210029, People's Republic of China
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Active compounds-based discoveries about the differentiation and apoptosis of leukemic cells. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11434-009-0628-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Bai J, Zhang J, Wu J, Shen L, Zeng J, Ding J, Wu Y, Gong Z, Li A, Xu S, Zhou J, Li G. JWA regulates melanoma metastasis by integrin alphaVbeta3 signaling. Oncogene 2009; 29:1227-37. [PMID: 19946336 DOI: 10.1038/onc.2009.408] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
JWA, a newly identified novel microtubule-associated protein (MAP), was recently demonstrated to be indispensable for the rearrangement of actin cytoskeleton and activation of MAPK cascades induced by arsenic trioxide (As(2)O(3)) and phorbol ester (PMA). JWA depletion blocked the inhibitory effect of As(2)O(3) on HeLa cell migration, but enhanced cell migration after PMA treatment. As cancer cell migration is a hallmark of tumor metastasis and the functional role of JWA in cancer metastasis is not understood, here we show that JWA has an important role in melanoma metastasis. Our data demonstrated that JWA knockdown increased the adhesion and invasion abilities of melanoma cells. Furthermore, JWA knockdown in B16-F10 and A375 melanoma cells significantly promoted the formation and growth of metastatic colonies in vivo. Moreover, in the tumor biopsies from human melanoma patients, JWA expression was significantly decreased in malignant melanoma compared with normal nevi. In addition, we found that JWA knockdown could intensify tumor integrin alpha(V)beta(3) signaling by regulating nuclear factor Sp1. These findings suggest that JWA suppresses melanoma metastasis and may serve a potential therapeutic target for human melanoma.
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Affiliation(s)
- J Bai
- Department of Molecular Cell Biology and Toxicology, Cancer Center, School of Public Health, Nanjing Medical University, Nanjing, People's Republic of China
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Wang S, Gong Z, Chen R, Liu Y, Li A, Li G, Zhou J. JWA regulates XRCC1 and functions as a novel base excision repair protein in oxidative-stress-induced DNA single-strand breaks. Nucleic Acids Res 2009; 37:1936-50. [PMID: 19208635 PMCID: PMC2665235 DOI: 10.1093/nar/gkp054] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
JWA was recently demonstrated to be involved in cellular responses to environmental stress including oxidative stress. Although it was found that JWA protected cells from reactive oxygen species-induced DNA damage, upregulated base excision repair (BER) protein XRCC1 and downregulated PARP-1, the molecular mechanism of JWA in regulating the repair of DNA single-strand breaks (SSBs) is still unclear. Our present studies demonstrated that a reduction in JWA protein levels in cells resulted in a decrease of SSB repair capacity and hypersensitivity to DNA-damaging agents such as methyl methanesulfonate and hydrogen peroxide. JWA functioned as a repair protein by multi-interaction with XRCC1. On the one hand, JWA was translocated into the nucleus by the carrier protein XRCC1 and co-localized with XRCC1 foci after oxidative DNA damage. On the other hand, JWA via MAPK signaling pathway regulated nuclear factor E2F1, which further transcriptionally regulated XRCC1. In addition, JWA protected XRCC1 protein from ubiquitination and degradation by proteasome. These findings indicate that JWA may serve as a novel regulator of XRCC1 in the BER protein complex to facilitate the repair of DNA SSBs.
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Affiliation(s)
- Shouyu Wang
- Department of Molecular Cell Biology and Toxicology, Cancer Centre, School of Public Health, Nanjing Medical University, Nanjing 210029, People's Republic of China
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Geerts D, Wallick CJ, Koomoa DLT, Koster J, Versteeg R, Go RCV, Bachmann AS. Expression of prenylated Rab acceptor 1 domain family, member 2 (PRAF2) in neuroblastoma: correlation with clinical features, cellular localization, and cerulenin-mediated apoptosis regulation. Clin Cancer Res 2008; 13:6312-9. [PMID: 17975142 DOI: 10.1158/1078-0432.ccr-07-0829] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Prenylated Rab acceptor 1 domain family, member 2 (PRAF2) is a novel 19-kDa protein that has recently been implicated in human cancer. In the present study, we analyzed for the first time PRAF2 mRNA expression in a large set of human tumors. The high expression in neuroblastic tumors prompted us to analyze PRAF2 expression correlations with genetic and clinical features of these tumors. In addition, we determined the localization of PRAF2 protein in neuroblastoma cells and studied its regulation in apoptosis. EXPERIMENTAL DESIGN Affymetrix microarray analysis was done with a set of 41 different tumor types (1,426 samples) in the public domain, a set of three different neuroblastic tumor types (110 samples), and a panel of 25 neuroblastoma cell lines. The subcellular localization of endogenous PRAF2 in neuroblastoma cells was identified by immunofluorescence microscopy and apoptosis detected by Annexin V staining and poly(ADP-ribose) polymerase cleavage. RESULTS PRAF2 mRNA was detected in 970 of 1,426 samples in the public data set. All 110 neuroblastic tumors expressed PRAF2 at higher levels than any other tumor examined. Importantly, PRAF2 expression levels significantly correlated with the following clinical features: patient age at diagnosis (P = 6.19 x 10(-5)), survival (P = 1.32 x 10(-3)), International Neuroblastoma Staging System stage (P = 2.86 x 10(-4)), and MYCN amplification (P = 3.74 x 10(-3)). PRAF2 localized in bright cytoplasmic punctae and protein levels increased in neuroblastoma cells that underwent cerulenin-induced apoptosis. CONCLUSIONS Elevated PRAF2 expression levels correlated with unfavorable genetic and clinical features, suggesting PRAF2 as a candidate prognostic marker of neuroblastoma.
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Affiliation(s)
- Dirk Geerts
- Cancer Research Center of Hawaii, University of Hawaii at Manoa, Honolulu, HI 96813, USA
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Shen Q, Tang WY, Li CP, Chen R, Zhu YJ, Huang S, Li AP, Zhou JW. Functional variations in the JWA gene are associated with increased odds of leukemias. Leuk Res 2007; 31:783-90. [PMID: 17049984 DOI: 10.1016/j.leukres.2006.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2006] [Revised: 09/05/2006] [Accepted: 09/08/2006] [Indexed: 10/24/2022]
Abstract
The association between the -76G>C in the 5'-flanking region and 723T>G in JWA exon three variants were examined for risk of leukemia development in a hospital-based case-control study of 201 leukemia patients and 243 cancer-free controls in a Chinese population. Studies showed that the -76C allele was associated with significantly increased odds of leukemia but the 723G allele was correlated with marked decreased odds of leukemia. Variation in the -76C allele resulted in almost complete loss of oxidative stress stimulated transcription activities of the promoter fragment.
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Affiliation(s)
- Qun Shen
- Department of Molecular Cell Biology and Toxicology, School of Public Health, Nanjing Medical University,140 Hanzhong Road, Nanjing 210029, People's Republic of China
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25
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Zhu YJ, Li CP, Tang WY, Li AP, Liu QZ, Zhou JW. Single nucleotide polymorphism of the JWA gene is associated with risk of leukemia: a case-control study in a Chinese population. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2007; 70:895-900. [PMID: 17479403 DOI: 10.1080/15287390701285956] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The JWA gene was initially cloned as a novel cell differentiation-associated gene and was subsequently found to be an environmental responsive gene. The JWA gene also produced a marked effect during chemical-induced multidirectional differentiations of primary and human myeloid leukemia cells. Recently, a novel single nucleotide polymorphism (SNP) in exon2 of the JWA gene (454CA) was identified that may play a role in risk of bladder cancer. The aim of this study was to investigate the association between the 454CA (NM_006407.2) in JWA exon2 variants and risk of leukemia in a hospital-based case-control study of 202 leukemia patients and 289 cancer-free controls. Results indicated that 454A allele was found to associate with significantly increased risk of leukemia, although the 454CA is a synonymous polymorphism in coding region of the JWA gene. In conclusion, the potentially functional genetic polymorphism 454CA of the JWA gene appears to contribute to the risk of multiple kinds of leukemia in a south Chinese population.
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Affiliation(s)
- Yu-Jie Zhu
- Department of Molecular Cell Biology and Toxicology, Jiangsu Provincial Key Laboratories of Human Functional Genomics and Applied Toxicology, School of Public Health, Nanjing Medical University. Nanjing. People's Republic of China
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26
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Mao WG, Liu ZL, Chen R, Li AP, Zhou JW. JWA is required for the antiproliferative and pro-apoptotic effects of all-trans retinoic acid in Hela cells. Clin Exp Pharmacol Physiol 2006; 33:816-24. [PMID: 16922813 DOI: 10.1111/j.1440-1681.2006.04446.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
1. All-trans retinoic acid (ATRA) is known to inhibit cellular proliferation and induce differentiation and apoptosis. It usually activates gene expression by binding to a nuclear receptor that interacts with retinoic acid-response elements (RARE) and then activates the mitogen-activated protein kinase signal pathway. JWA, a newly identified ATRA-responsive gene, has recently been proposed as an important molecule for cellular differentiation induced by some chemicals, including ATRA. 2. To investigate the possible involvement of JWA in the inhibition of cellular proliferation and induction of apoptosis by ATRA, HeLa cells were stably transfected with sense or antisense JWA to establish cell lines that overexpressed or were deficient in JWA; ATRA (0.05-10 micromol/L) was used to induce cellular differentiation and apoptosis. 3. Western blot analysis revealed that ATRA caused increased expression of JWA in HeLa cells in a dose- and time-dependent manner, accompanied by activation of extracellular signal-regulated kinase (ERK) 1/2 phosphorylation. However, ERK1/2 phosphorylation induced by ATRA was inhibited in JWA-deficient HeLa cells. In JWA-overexpressing HeLa cells, ATRA showed more significant antiproliferative effects and induced more apoptosis. 4. The reporter gene assay showed that ATRA (5 mmol/L) enhanced the transcriptional activity of JWA by interacting with its promoter in the region from -194 to +107 bp (P < 0.01). Bioinformatic analysis indicated that the JWA promoter did not contain RARE, but did contain two CCAAT boxes in this fragment spanning -194 to +107 bp, which may be responsive to the ATRA-activated nuclear transcription factor CCAAT/enhancer binding proteins (C/EBP) or interacting proteins. Therefore, ATRA-inhibited cellular proliferation and -induced apoptosis in HeLa cells may be dependent on JWA transactivation via its C/EBP-binding motifs. 5. These data indicate that the inhibition of proliferation and the induction of apoptosis by ATRA are dependent on JWA expression in HeLa cells. The findings may represent a novel mechanism by which the effects of ATRA in regulating cellular proliferation and apoptosis are mediated, at least in part, by JWA expression.
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Affiliation(s)
- Wen-Ge Mao
- Department of Molecular Cell Biology and Toxicology, Jiangsu Provincial Key Laboratories of Human Functional Genomics and of Applied Toxicology, School of Public Health, Nanjing Medical University, Nanjing, PR China
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