1
|
Liu P, Shi L, Ding Y, Luan J, Shan X, Li Q, Zhang S. MicroRNA-766 Promotes The Proliferation, Migration And Invasion, And Inhibits The Apoptosis Of Cutaneous Squamous Cell Carcinoma Cells By Targeting PDCD5. Onco Targets Ther 2020; 13:4099-4110. [PMID: 32494163 PMCID: PMC7231789 DOI: 10.2147/ott.s222821] [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: 07/11/2019] [Accepted: 10/21/2019] [Indexed: 12/26/2022] Open
Abstract
Purpose This study aimed to investigate the regulatory role and mechanism of microRNA-766 (miR-766) on cutaneous squamous cell carcinoma (CSCC) cells. Methods The expression of miR-766 and programmed cell death 5 (PDCD5) was detected in CSCC tissues and CSCC cell lines (A431, SCL-1 and DJM-1 cells) by qRT-RCR. The proliferation, colony-forming ability, apoptosis, migration and invasion of A431 and SCL-1 cells was measured by MTT, colony formation, flow cytometry, wound healing and transwell assay, respectively. The interaction between miR-766 and PDCD5 was detected by dual-luciferase reporter gene assay. The expression of matrix metalloproteinase 2 (MMP-2), MMP-9 and PDCD5 was measured by Western blot. In addition, A431 cells were subcutaneously injected into mice, and the tumor volume and weight were measured. Results MiR-766 was upregulated, and PDCD5 was downregulated in CSCC tissues and cells. MiR-766 significantly promoted the proliferation, migration and invasion, and inhibited the apoptosis of A431 and SCL-1 cells. MiR-766 also significantly increased the expression of MMP-2 and MMP-9 in A431 and SCL-1 cells. PDCD5 was a target gene of miR-766. PDCD5 significantly reversed the tumor-promoting effect of miR-766 on A431 and SCL-1 cells. In addition, miR-766 inhibitor inhibited the tumor growth in mice. Conclusion MiR-766 inhibitor inhibited the proliferation, migration and invasion, and promoted the apoptosis of CSCC cells via downregulating PDCD5.
Collapse
Affiliation(s)
- Pengyu Liu
- Department of Hepatobiliary Surgery, Oilfields General Hospital in Daqing, Daqing City, Heilongjiang Province 163000, People's Republic of China
| | - Liang Shi
- Department of Plastic Hand Surgery, Oilfields General Hospital in Daqing, Daqing City, Heilongjiang Province 163000, People's Republic of China
| | - Yan Ding
- Department of Hepatobiliary Surgery, Oilfields General Hospital in Daqing, Daqing City, Heilongjiang Province 163000, People's Republic of China
| | - Jiaxi Luan
- Department of Hepatobiliary Surgery, Oilfields General Hospital in Daqing, Daqing City, Heilongjiang Province 163000, People's Republic of China
| | - Xiaojun Shan
- Department of Thyroid and Breast Surgery, Oilfields General Hospital in Daqing, Daqing City, Heilongjiang Province 163000, People's Republic of China
| | - Qinghua Li
- Department of Hepatobiliary Surgery, Oilfields General Hospital in Daqing, Daqing City, Heilongjiang Province 163000, People's Republic of China
| | - Shuhua Zhang
- Department of Hepatobiliary Surgery, Oilfields General Hospital in Daqing, Daqing City, Heilongjiang Province 163000, People's Republic of China
| |
Collapse
|
2
|
王 少, 李 涛, 杜 婧, 韩 曼, 鞠 迪. [Pregnane X receptor promotes programmed cell death protein 4 expression in HepG2 cells]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2020; 40:370-375. [PMID: 32376574 PMCID: PMC7167314 DOI: 10.12122/j.issn.1673-4254.2020.03.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the role of pregnane X receptor (PXR) in the regulation of programmed cell death proteins (PDCDs) in HepG2 cells and explore the underlying molecular mechanism. METHODS HepG2 cells were treated with PXR agonist rifampicin (10 μmol/L) or SR12813 (1 μmol/L) for 24 h, using DMSO as the negative control. HepG2 cells were infected with constitutively activated PXR adenovirus (VP-PXR) for 36 h, with the cells infected with Mock as the negative control. The mRNA levels of PDCD2, PDCD4, PDCD5, and PDCD6 and the expression of miRNA21 were detected using qRT-PCR, and the protein level of PDCD4 was detected with Western blotting. Bioinformatic analysis was performed to predict the potential PXRresponsive elements (PXREs) motifs in the promotor region of human PDCD4. RESULTS The expressions of PDCD5 and PDCD6 mRNA did not differ significantly between rifampicin-treated and the control cells, while PDCD4 mRNA expression increased (t=4.209, P=0.008) and PDCD2 mRNA decreased significantly (t=-2.875, P=0.017) in rifampicin-treated cells. The mRNA expressions of PDCD2, PDCD5 and PDCD6 showed no significant difference between SR12813-treated cells and the control cells, while PDCD4 mRNA expression increased obviously in SR12813-treated cells (t=4.574, P=0.006). The PXR target gene MDR1 also increased significantly in the rifampicin- and SR12813-treated cells compared with the control cells (P=0.020 and 0.01, respectively). Infection of the cells with VP-PXR adenovirus resulted in significantly increased expression of PDCD4 and MDR1 mRNA as compared with Mock group (t=3.343, P=0.000; t=3.343, P=0.024, respectively) without causing obvious changes in PDCD2 and PDCD6 mRNA expressions. The protein level of PDCD4 increased significantly in both rifampicin (t= 2.779, P=0.025) group and VP- PXR group (t=3.066, P=0.012). The expression of miRNA21, the negative regulatory factor of PDCD4, did not differ significantly between PXR agonist group and the control group. Informatic analysis revealed the presence of putative PXREs in the 5'-flanking region of PDCD4 gene. CONCLUSIONS Our findings demonstrate that PXR agonism in HepG2 cells increases the expression of PDCD4, which is independent of miRNA21 pathway, and PDCD4 may be a target gene of PXR in HepG2 cells.
Collapse
Affiliation(s)
- 少兰 王
- />陕西中医药大学基础医学院,陕西 西安 712046School of Basic Medicine, Shaanxi University of Chinese Medicine, Xi'an 712046, China
| | - 涛 李
- />陕西中医药大学基础医学院,陕西 西安 712046School of Basic Medicine, Shaanxi University of Chinese Medicine, Xi'an 712046, China
| | - 婧 杜
- />陕西中医药大学基础医学院,陕西 西安 712046School of Basic Medicine, Shaanxi University of Chinese Medicine, Xi'an 712046, China
| | - 曼 韩
- />陕西中医药大学基础医学院,陕西 西安 712046School of Basic Medicine, Shaanxi University of Chinese Medicine, Xi'an 712046, China
| | - 迪 鞠
- />陕西中医药大学基础医学院,陕西 西安 712046School of Basic Medicine, Shaanxi University of Chinese Medicine, Xi'an 712046, China
| |
Collapse
|
3
|
Gao F, Zhao M, Huang S, Zhang W, Ma Z. Clinicopathological Significance of Decreased Expression of the Tumor Inhibitor Gene PDCD5 in Osteoclastoma. Genet Test Mol Biomarkers 2019; 23:807-814. [PMID: 31638427 DOI: 10.1089/gtmb.2019.0082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background: The gene programmed cell death 5 (PDCD5) has recently been characterized as a tumor suppressor gene and is believed to be an important prognostic cancer marker; it is frequently involved in neoplastic transformation and apoptosis of tumor cells. Several studies have demonstrated a decrease or loss of expression of PDCD5 in certain tumors. However, the relevance of PDCD5 expression in human osteoclastoma and its clinicopathological significance have not been extensively studied. Methods: The aim of this study was to explore the relative transcriptional and translational expression levels of PDCD5 in 79 osteoclastoma samples using multi-modal methods of analysis. Results: Our findings showed that 52% (15/29) of osteoclastoma cases exhibited reduced PDCD5 expression at the transcriptional level, and 56% (44/79) exhibited lower PDCD5 expression at the protein level, when compared with nontumor tissue. In addition, the statistical significance of the altered PDCD5 protein expression was examined using the Campanacci grading system for osteoclastoma. More importantly, the decreased expression at the translational level was observed to have a negative association with the Ki-67 staining index. Conclusion: Based on these findings, abnormal PDCD5 expression might be an important biomarker in human osteoclastoma and may contribute to tumor progression and malignant cell proliferation.
Collapse
Affiliation(s)
- Fei Gao
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| | - Miaoqing Zhao
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Shanying Huang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Shandong University Qilu Hospital, Jinan, Shandong, China
| | - Wei Zhang
- Department of Bone Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Zhe Ma
- Department of Ultrasound, Shandong University Qilu Hospital, Jinan, Shandong, China
| |
Collapse
|
4
|
Programmed cell death 5 suppresses AKT-mediated cytoprotection of endothelium. Proc Natl Acad Sci U S A 2018; 115:4672-4677. [PMID: 29588416 DOI: 10.1073/pnas.1712918115] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Programmed cell death 5 (PDCD5) has been associated with human cancers as a regulator of cell death; however, the role of PDCD5 in the endothelium has not been revealed. Thus, we investigated whether PDCD5 regulates protein kinase B (PKB/AKT)-endothelial nitric oxide synthase (eNOS)-dependent signal transduction in the endothelium and affects atherosclerosis. Endothelial-specific PDCD5 knockout mice showed significantly reduced vascular remodeling compared with wild-type (WT) mice after partial carotid ligation. WT PDCD5 competitively inhibited interaction between histone deacetylase 3 (HDAC3) and AKT, but PDCD5L6R, an HDAC3-binding-deficient mutant, did not. Knockdown of PDCD5 accelerated HDAC3-AKT interaction, AKT and eNOS phosphorylation, and nitric oxide (NO) production in human umbilical vein endothelial cells. Moreover, we found that serum PDCD5 levels reflect endothelial NO production and are correlated with diabetes mellitus, high-density lipoprotein cholesterol, and coronary calcium in human samples obtained from the cardiovascular high-risk cohort. Therefore, we conclude that PDCD5 is associated with endothelial dysfunction and may be a novel therapeutic target in atherosclerosis.
Collapse
|
5
|
Cheng Q, Liu L, Fu Y, Zhang Y, Yang Y, Liu J. RhPDCD5 combined with dexamethasone increases antitumor activity in multiple myeloma partially via inhibiting the Wnt signalling pathway. Clin Exp Pharmacol Physiol 2017; 45:140-145. [PMID: 28945941 DOI: 10.1111/1440-1681.12859] [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: 06/10/2017] [Revised: 09/12/2017] [Accepted: 09/18/2017] [Indexed: 11/29/2022]
Abstract
Multiple myeloma (MM) is one of the most common hematological malignancies and characterized by the clonal accumulation of malignant plasma cells. Significant progress has been made in MM treatment recently, while MM still remains incurable. Our previous studies showed that the recombined human programmed cell death 5 (rhPDCD5) can promote MM apoptosis induced by dexamethasone (Dex). Here, we expanded the findings by showing that the rhPDCD5 alone could not induce an obvious growth inhibition of U266 cells (a MM cell line). Of note, with the combination of dexamethasone (Dex), the growth of MM cells was significantly inhibited and accompanied with the cell cycle arrest in G0/G1. For mechanism study, we found that the combination treatment of rhPDCD5 plus Dex downregulated the mRNA and protein expressions of Wnt effectors including β-catenin, β-catenin (Ser675), TCF4, survivin and c-Myc when compared to Dex only. Moreover, the activation of WNT pathway induced by LiCl can also be inhibited by this combination treatment. Taken together, our study demonstrated that the combination of rhPDCD5 and Dex can suppress the proliferation of multiple myeloma cells partially via inhibiting the WNT signalling pathway.
Collapse
Affiliation(s)
- Qian Cheng
- Department of Hematology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Liping Liu
- Department of General Surgery, the Affiliated Zhuzhou Hospital, Xiangya Medical College, Central South University, Zhuzhou, Hunan, China
| | - Yunfeng Fu
- Department of Hematology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yanan Zhang
- Department of Hematology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ye Yang
- Basic Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Jing Liu
- Department of Hematology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| |
Collapse
|
6
|
Protein serine/threonine phosphatase PPEF-1 suppresses genotoxic stress response via dephosphorylation of PDCD5. Sci Rep 2017; 7:39222. [PMID: 28051100 PMCID: PMC5209732 DOI: 10.1038/srep39222] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 11/21/2016] [Indexed: 12/11/2022] Open
Abstract
Programmed cell death 5 (PDCD5) is believed to play a crucial role in p53 activation; however, the underlying mechanism of how PDCD5 function is regulated during apoptosis remains obscure. Here, we report that the serine/threonine phosphatase PPEF-1 interacts with and dephosphorylates PDCD5 at Ser-119, which leads to PDCD5 destabilization. Overexpression of wild-type PPEF-1, but not inactive PPEF-1D172N, efficiently suppressed CK2α-mediated stabilization of PDCD5 and p53-mediated apoptosis in response to etoposide (ET). Conversely, PPEF-1 knockdown further enhanced genotoxic stress responses. Notably, PPEF-1 suppressed p53-mediated genotoxic stress response via negative regulation of PDCD5. We also determined that overexpression of wild-type PPEF-1, but not inactive PPEF-1D172N, significantly increased tumorigenic growth and chemoresistance of A549 human lung carcinoma cells. Collectively, these data demonstrate that PPEF-1 plays a pivotal role in tumorigenesis of lung cancer cells by reducing PDCD5-mediated genotoxic stress responses.
Collapse
|
7
|
Wang W, Song XW, Zhao CH. Roles of programmed cell death protein 5 in inflammation and cancer (Review). Int J Oncol 2016; 49:1801-1806. [PMID: 27826615 DOI: 10.3892/ijo.2016.3706] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 09/19/2016] [Indexed: 11/06/2022] Open
Abstract
PDCD5 (programmed cell death 5) is an apoptosis related gene cloned in 1999 from a human leukemic cell line. PDCD5 protein containing 125 amino acid (aa) residues sharing significant homology to the corresponding proteins of species. Decreased expression of PDCD5 has been found in many human tumors, including breast, gastric cancer, astrocytic glioma, chronic myelogenous leukemia and hepatocellular carcinoma. In recent years, increased number of studies have shown the functions and mechanisms of PDCD5 protein in cancer cells, such as paraptosis, cell cycle and immunoregulation. In the present review, we provide a comprehensive review on the role of PDCD5 in cancer tissues and cells. This review summarizes the recent studies of the roles of PDCD5 in inflammation and cancer. We mainly focus on discoveries related to molecular mechanisms of PDCD5 protein. We also discuss some discrepancies between the current studies. Overall, the current available data will open new perspectives for a better understanding of PDCD5 in cancer.
Collapse
Affiliation(s)
- Wei Wang
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Xiao-Wen Song
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, Liaoning 110122, P.R. China
| | - Cheng-Hai Zhao
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, Liaoning 110122, P.R. China
| |
Collapse
|
8
|
Zhang H, Cui R, Guo X, Hu J, Dai J. Low dose perfluorooctanoate exposure promotes cell proliferation in a human non-tumor liver cell line. JOURNAL OF HAZARDOUS MATERIALS 2016; 313:18-28. [PMID: 27045622 DOI: 10.1016/j.jhazmat.2016.03.077] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 03/25/2016] [Accepted: 03/27/2016] [Indexed: 05/27/2023]
Abstract
Perfluorooctanoate (PFOA) is a well-known persistent organic pollutant widely found in the environment, wildlife and humans. Medical surveillance and experimental studies have investigated the potential effects of PFOA on human livers, but the hepatotoxicity of PFOA on humans and its underlying mechanism remain to be clarified. We exposed a human liver cell line (HL-7702) to 50μM PFOA for 48h and 96h, and identified 111 significantly differentially expressed proteins by iTRAQ analysis. A total of 46 proteins were related to cell proliferation and apoptosis. Through further analysis of the cell cycle, apoptosis and their related proteins, we found that low doses of PFOA (50-100μM) promoted cell proliferation and numbers by promoting cells from the G1 to S phases, whereas high doses of PFOA (200-400μM) led to reduced HL-7702 cell numbers compared with that of the control mainly due to cell cycle arrest in the G0/G1 phase. To our knowledge, this is the first report on the promotion of cell cycle progression in human cells following PFOA exposure.
Collapse
Affiliation(s)
- Hongxia Zhang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Ruina Cui
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Xuejiang Guo
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 210029, PR China
| | - Jiayue Hu
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Jiayin Dai
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.
| |
Collapse
|
9
|
Gao M, Gao W, Wang Z, Liu Y, Li Y, Wei C, Sun Y, Guo C, Zhang L, Wei Z, Wang X. The reduced PDCD5 protein is correlated with the degree of tumor differentiation in endometrioid endometrial carcinoma. SPRINGERPLUS 2016; 5:988. [PMID: 27398268 PMCID: PMC4937001 DOI: 10.1186/s40064-016-2698-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 06/28/2016] [Indexed: 12/15/2022]
Abstract
Endometrial cancer is one of the most common malignancies in the female genital tract. Programmed cell death 5 (PDCD5) is a newly identified apoptosis related gene and plays an important role in the development of some human tumors. However, the expression and clinical significance of PDCD5 in endometrial cancer have not been fully elucidated. Here, we evaluated the expression of PDCD5 in endometrioid endometrial carcinoma and control endometrium by qRT-PCR, western blot and immunohistochemistry, and analyzed the associations of PDCD5 expression with clinicopathological parameters of patients. In addition, we detected the expression of PDCD5 in control endometrial glandular epithelial cells and endometrioid endometrial carcinoma-derived cell line KLE by immunocytochemistry. The results showed that PDCD5 protein mainly expressed in the cytoplasm of glandular epithelial cells and endometrial carcinoma cells, and there was a low level of PDCD5 expression in the nuclei of the above cells. Furthermore, PDCD5 protein level was significantly lower in endometrial carcinoma samples than that in control endometrium. The decreased PDCD5 expression was correlated with the tumor differentiation degree. It is clear that PDCD5 protein expression was lower in middle and low differentiated endometrial carcinoma compared with control endometrium and high differentiated endometrial carcinoma. However, there were no significant differences of PDCD5 expression between the proliferative phase and the secretory phase of control endometrium, as well as between high differentiated endometrial carcinoma and controls. The results were verified in control glandular epithelial cells and KLE cells by immunocytochemistry. Therefore, PDCD5 may play a key role in the pathogenesis of endometrial cancer and may be a novel target for diagnosis and treatment of endometrial cancer.
Collapse
Affiliation(s)
- Meng Gao
- Department of Immunology, Shandong University School of Medicine, 44# Wenhua Xi Road, Jinan, 250012 Shandong People's Republic of China
| | - Wei Gao
- Department of Immunology, Shandong University School of Medicine, 44# Wenhua Xi Road, Jinan, 250012 Shandong People's Republic of China.,Department of Clinical Laboratory Services, Linyi People's Hospital, Linyi, Shandong People's Republic of China
| | - Zhanying Wang
- Department of Gynecology, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong People's Republic of China
| | - Yanping Liu
- Department of Gynecology and Obstetrics, Shandong University School of Medicine, 44# Wenhua Xi Road, Jinan, 250012 Shandong People's Republic of China
| | - Yue Li
- Department of Immunology, Shandong University School of Medicine, 44# Wenhua Xi Road, Jinan, 250012 Shandong People's Republic of China
| | - Chao Wei
- Department of Pathology, The Fourth Hospital of Jinan City, Jinan, Shandong People's Republic of China
| | - Yingshuo Sun
- Department of Gynecology and Obstetrics, Shandong University School of Medicine, 44# Wenhua Xi Road, Jinan, 250012 Shandong People's Republic of China
| | - Chun Guo
- Department of Immunology, Shandong University School of Medicine, 44# Wenhua Xi Road, Jinan, 250012 Shandong People's Republic of China
| | - Lining Zhang
- Department of Immunology, Shandong University School of Medicine, 44# Wenhua Xi Road, Jinan, 250012 Shandong People's Republic of China
| | - Zengtao Wei
- Department of Gynecology and Obstetrics, Shandong University School of Medicine, 44# Wenhua Xi Road, Jinan, 250012 Shandong People's Republic of China
| | - Xiaoyan Wang
- Department of Immunology, Shandong University School of Medicine, 44# Wenhua Xi Road, Jinan, 250012 Shandong People's Republic of China
| |
Collapse
|
10
|
Wang D, Wang W, Song CL, Xia P. The roles of serum PDCD5 in circulating CD133 positive cells of the patients with gastric cancer. Tumour Biol 2016; 37:11799-11804. [DOI: 10.1007/s13277-016-5040-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 03/28/2016] [Indexed: 02/08/2023] Open
|
11
|
Li G, Ma D, Chen Y. Cellular functions of programmed cell death 5. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:572-80. [PMID: 26775586 DOI: 10.1016/j.bbamcr.2015.12.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 12/24/2015] [Accepted: 12/29/2015] [Indexed: 01/01/2023]
Abstract
Programmed cell death 5 (PDCD5) was originally identified as an apoptosis-accelerating protein that is widely expressed and has been well conserved during the process of evolution. PDCD5 has complex biological functions, including programmed cell death and immune regulation. It can accelerate apoptosis in different type of cells in response to different stimuli. During this process, PDCD5 rapidly translocates from the cytoplasm to the nucleus. PDCD5 regulates the activities of TIP60, HDAC3, MDM2 and TP53 transcription factors. These proteins form part of a signaling network that is disrupted in most, if not all, cancer cells. Recent evidence suggests that PDCD5 participates in immune regulation by promoting regulatory T cell function via the PDCD5-TIP60-FOXP3 pathway. The stability and expression of PDCD5 are finely regulated by other molecules, such as NF-κB p65, OTUD5, YAF2 and DNAJB1. PDCD5 is phosphorylated by CK2 at Ser119, which is required for nuclear translocation in response to genotoxic stress. In this review, we describe what is known about PDCD5 and its cellular functions.
Collapse
Affiliation(s)
- Ge Li
- Department of Immunology, Peking University School of Basic Medical Sciences, 38 Xueyuan Road, Beijing 100191, China; Center for Human Disease Genomics, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Dalong Ma
- Department of Immunology, Peking University School of Basic Medical Sciences, 38 Xueyuan Road, Beijing 100191, China; Center for Human Disease Genomics, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Yingyu Chen
- Department of Immunology, Peking University School of Basic Medical Sciences, 38 Xueyuan Road, Beijing 100191, China; Center for Human Disease Genomics, Peking University, 38 Xueyuan Road, Beijing 100191, China.
| |
Collapse
|
12
|
YAF2 promotes TP53-mediated genotoxic stress response via stabilization of PDCD5. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1853:1060-72. [DOI: 10.1016/j.bbamcr.2015.01.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 01/07/2015] [Accepted: 01/09/2015] [Indexed: 01/13/2023]
|
13
|
Park SY, Choi HK, Choi Y, Kwak S, Choi KC, Yoon HG. Deubiquitinase OTUD5 mediates the sequential activation of PDCD5 and p53 in response to genotoxic stress. Cancer Lett 2014; 357:419-427. [PMID: 25499082 DOI: 10.1016/j.canlet.2014.12.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 12/02/2014] [Accepted: 12/02/2014] [Indexed: 11/27/2022]
Abstract
Programmed cell death 5 (PDCD5) positively regulates p53-mediated apoptosis and rapidly accumulates upon DNA damage. However, the underlying mechanism of PDCD5 upregulation during the DNA damage response remains unknown. Here, we found that OTU deubiquitinase 5 (OTUD5) was bound to PDCD5 in response to etoposide treatment and increased the stability of PDCD5 by mediating deubiquitination of PDCD5 at Lys-97/98. Overexpression of OTUD5 efficiently enhanced the activation of both PDCD5 and p53. Conversely, PDCD5 knockdown greatly attenuated the effect of OTUD5 on p53 activation. In addition, when OTUD5 was depleted, PDCD5 failed to facilitate p53 activation, demonstrating an essential role for the PDCD5-OTUD5 network in p53 activation. Importantly, we found that OTUD5-dependent PDCD5 stabilization was required for sequential activation of p53 in response to genotoxic stress. The sequential activation of PDCD5 and p53 was abrogated by knockdown of OTUD5. Finally, impairment of the genotoxic stress response upon PDCD5 ablation was substantially rescued by reintroducing PDCD5(WT) but not PDCD5(E94D) (defective for OTUD5 interaction) or PDCD5(E16D) (defective for p53 interaction). Together, our findings have uncovered an apoptotic signaling cascade linking PDCD5, OTUD5, and p53 during genotoxic stress responses.
Collapse
Affiliation(s)
- Soo-Yeon Park
- Department of Biochemistry and Molecular Biology, Center for Chronic Metabolic Disease Research, Brain Korea 21 Project for Medical Sciences, Severance Medical Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Hyo-Kyoung Choi
- Department of Biochemistry and Molecular Biology, Center for Chronic Metabolic Disease Research, Brain Korea 21 Project for Medical Sciences, Severance Medical Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Youngsok Choi
- Fertility Center of CHA General Hospital, CHA Research Institute, CHA University, Seoul, Korea
| | - Sungmin Kwak
- Department of Biomedical Sciences and Department of Pharmacology, University of Ulsan College of Medicine, Seoul, Korea
| | - Kyung-Chul Choi
- Department of Biomedical Sciences and Department of Pharmacology, University of Ulsan College of Medicine, Seoul, Korea.
| | - Ho-Geun Yoon
- Department of Biochemistry and Molecular Biology, Center for Chronic Metabolic Disease Research, Brain Korea 21 Project for Medical Sciences, Severance Medical Research Institute, Yonsei University College of Medicine, Seoul, Korea
| |
Collapse
|
14
|
FU DAZHI, CHENG YING, HE HUI, LIU HAIYANG, LIU YONGFENG. The fate of Krüppel-like factor 9-positive hepatic carcinoma cells may be determined by the programmed cell death protein 5. Int J Oncol 2013; 44:153-60. [DOI: 10.3892/ijo.2013.2147] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Accepted: 10/07/2013] [Indexed: 11/06/2022] Open
|
15
|
FU DAZHI, CHENG YING, HE HUI, LIU HAIYANG, LIU YONGFENG. Recombinant human PDCD5 exhibits an antitumor role in hepatocellular carcinoma cells via clathrin-dependent endocytosis. Mol Med Rep 2012; 12:8135-40. [DOI: 10.3892/mmr.2015.4489] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Accepted: 10/06/2015] [Indexed: 11/06/2022] Open
|