1
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Yuan H, Zhong M, Liu J, Tang S, Zhu H, Wei Q, Pu B, Li Y. Downregulation of CIAPIN1 regulates the proliferation, migration and glycolysis of breast cancer cells via inhibition of STAT3 pathway. Sci Rep 2024; 14:20794. [PMID: 39242716 PMCID: PMC11379703 DOI: 10.1038/s41598-024-71405-3] [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: 03/22/2024] [Accepted: 08/27/2024] [Indexed: 09/09/2024] Open
Abstract
Cytokine-induced apoptosis inhibitor 1 (CIAPIN1) is a protein that regulates apoptosis and programmed cell death. This research aims to evaluate its potential role in inhibiting breast cancer cell proliferation, migration, and glycolysis and uncover its underlying molecular mechanism. We collected breast cancer tissue samples from eight patients between January 2019 and June 2023 in our Hospital to analyse CIAPIN1 expression. We transfected human breast cancer cell lines (MCF7, MDA-MB-231, MDA-MB-453, and MDA-MB-468) with siRNA of CIAPIN1. Finally, we determined protein expression using RT-qPCR and Western blotting. CIAPIN1 expression was elevated in both breast cancer tissue and serum. Overexpression of CIAPIN1 detected in the breast cancer cell lines MCF7 and MDA-MB-468. In addition, CIAPIN1 overexpression increased cell proliferation and migration rate. CIAPIN1 downregulation suppressed cell proliferation while elevated cellular apoptosis, reactive oxygen species (ROS) production and oxidative stress in breast cancer cells. Moreover, CIAPIN1 inhibition remarkably suppressed pyruvate, lactate and adenosine triphosphate (ATP) production and reduced the pyruvate kinase M2 (PKM2) protein expression and phosphorylation of signal transducer and activator of transcription 3 (STAT3) in breast cancer cells. Downregulation of CIAPIN1 suppresses cell proliferation, migration and glycolysis capacity in breast cancer cells by inhibiting the STAT3/PKM2 pathway.
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Affiliation(s)
- Hao Yuan
- Department of Breast and Thyroid Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong New Area, Shanghai, 201399, China
| | - Ming Zhong
- Department of Breast and Thyroid Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong New Area, Shanghai, 201399, China
| | - Jie Liu
- Department of Breast and Thyroid Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong New Area, Shanghai, 201399, China
| | - Shuya Tang
- Department of Breast and Thyroid Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong New Area, Shanghai, 201399, China
| | - Hongbo Zhu
- Department of Pathology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Qingping Wei
- Department of Breast and Thyroid Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong New Area, Shanghai, 201399, China
| | - Bingbing Pu
- Department of Rehabilitation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Yongping Li
- Department of Breast and Thyroid Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, 2800 Gongwei Road, Pudong New Area, Shanghai, 201399, China.
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2
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Xu N, Wan J, Wang C, Chen L. Serum CIAPIN1 is lower in septic patients with cardiac dysfunction. Peptides 2024:171295. [PMID: 39241831 DOI: 10.1016/j.peptides.2024.171295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 09/03/2024] [Accepted: 09/03/2024] [Indexed: 09/09/2024]
Abstract
The study aimed to investigate the clinical significance of serum cytokine-induced apoptosis inhibitor 1 (CIAPIN1) and its potential impact on cardiac dysfunction and inflammatory response induced by sepsis. A cross-sectional study was conducted in an intensive care unit (ICU) involving 80 healthy individuals and 95 severe sepsis patients. The data were analyzed to establish the correlation between CIAPIN1 levels and the onset of cardiac dysfunction in patients with sepsis. The associations have been established by the Pearson correlation test, one-way ANOVA, Bonferroni post hoc test, and plotting the receiver operating characteristic (ROC). H9c2 cells were treated with LPS (1μg/mL) for 24hours to establish an in vitro model of septic cardiomyopathy. Meanwhile, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and interleukin-1β (IL-1β) were detected by enzyme-linked immunosorbent assay (ELISA). Serum CIAPIN1 levels were considerably lower in sepsis patients with cardiac dysfunction. CIAPIN1 expression levels were negatively correlated with TNF-α (r = -0.476, P<0.001), IL-1β (r = -0.584, P<0.001), IL-6 (r = -0.618, P<0.001), creatine kinase- MB (CK-MB) (r = -0.454, P<0.001), and high-sensitive cardiac troponin T (hs-cTnT) (r = -0.586, P<0.001). The ROC curve showed that CIAPIN1 significantly identify sepsis patients from healthy individuals. CIAPIN1 knockdown decreases cardiomyocyte proliferation and increases apoptosis induced by LPS. In addition, CIAPIN1 knockdown reduced cardiac dysfunction and increased inflammatory response in H9c2 rat cardiomyocytes. CIAPIN1 could be a potential biomarker for detecting sepsis patients and suppressing CIAPIN1 expression in H9c2 rat cardiomyocytes, attenuating sepsis-induced cardiac dysfunction.
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Affiliation(s)
- Nongzhang Xu
- Department of Pharmacy, Shanghai Pudong New Area Zhoupu Hospital (Shanghai Health Medical College Affiliated Zhoupu Hospital) shanghai 201318, China
| | - Jianwei Wan
- Department of Pharmacy, Shanghai Pudong New Area Zhoupu Hospital (Shanghai Health Medical College Affiliated Zhoupu Hospital) shanghai 201318, China
| | - Cuihong Wang
- Department of Pharmacy, Shanghai Pudong New Area Zhoupu Hospital (Shanghai Health Medical College Affiliated Zhoupu Hospital) shanghai 201318, China
| | - Lin Chen
- Department of Nursing, Shanghai Pudong New Area Zhoupu Hospital (Shanghai Health Medical College Affiliated Zhoupu Hospital) shanghai 201318, China.
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3
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Wang K, Jiang S, Huang A, Gao Y, Peng B, Li Z, Ma W, Songyang Z, Zhang S, He M, Li W. GOLPH3 Promotes Cancer Growth by Interacting With STIP1 and Regulating Telomerase Activity in Pancreatic Ductal Adenocarcinoma. Front Oncol 2020; 10:575358. [PMID: 33134174 PMCID: PMC7566044 DOI: 10.3389/fonc.2020.575358] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/27/2020] [Indexed: 12/19/2022] Open
Abstract
Overexpression of Golgi phosphoprotein 3 (GOLPH3) predicts poor prognosis and is a potential therapeutic target in pancreatic ductal adenocarcinoma (PDAC). However, its role and underlying molecular mechanisms in the progression of PDAC remain unknown. In the present study, using high-throughput bimolecular fluorescence complementation (BiFC) analysis, we identified that stress-inducible protein-1 (STIP1) interacts with GOLPH3 and confirmed the interaction using co-localization and co-immunoprecipitation. The levels of GOLPH3 and STIP1 in PDAC tissues and adjacent non-cancerous pancreatic tissues were determined using immunohistochemistry (IHC) and quantitative real-time reverse transcription PCR. Real-time Quantitative-telomere repeat amplification (Q-TRAP) was applied to detect relative telomerase activity, and cell proliferation was measured when small interfering RNAs targeting GOLPH3 or STIP1 were transfected into PDAC cell lines. BALB/c nude mice were used to assess tumor growth inhibition of BXPC3 cells stably transfected with GOLPH3 short hairpin RNA. In summary, GOLPH3 was found to interact with STIP1 and both proteins were overexpressed and co-localized in PDAC tissues and cell lines. Moreover, suppression of GOLPH3 expression using shRNAs in PANC1 and BXPC3 cells inhibited tumor cell proliferation both in vitro and in vivo. Mechanistically, GOLPH3 interacts with STIP1 to activate telomerase reverse transcriptase (hTERT) and telomerase activity by c-Myc, and then upregulates cell cycle-related signaling proteins, including cyclin D1, to promote tumor cell growth, suggesting that disrupting the interaction between STIP1 and GOLPH3 would be a promising new strategy to treat PDAC.
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Affiliation(s)
- Kebing Wang
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shuai Jiang
- Key Laboratory of Gene Engineering of the Ministry of Education and State Key Laboratory of Oncology in South China, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Anpei Huang
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ying Gao
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Baogang Peng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhi Li
- Department of Pathology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wenbin Ma
- Key Laboratory of Gene Engineering of the Ministry of Education and State Key Laboratory of Oncology in South China, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zhou Songyang
- Key Laboratory of Gene Engineering of the Ministry of Education and State Key Laboratory of Oncology in South China, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Shihong Zhang
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Meifang He
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wen Li
- Laboratory of General Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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4
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Shi L, Zhu H, Shen Y, Dou X, Guo H, Wang P, Zhang S, Zhou L, Zou X. Regulation of E2F Transcription Factor 3 by microRNA-152 Modulates Gastric Cancer Invasion and Metastasis. Cancer Manag Res 2020; 12:1187-1197. [PMID: 32110093 PMCID: PMC7034297 DOI: 10.2147/cmar.s239752] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 01/30/2020] [Indexed: 12/13/2022] Open
Abstract
Background The transcription factor, E2F transcription factor 3 (E2F3), has been proved to modulate metastasis in multiple human cancers. The present study was aimed to expound the function and specific mechanism of E2F3 in gastric cancer (GC) progression. Materials and Methods The expression of E2F3, microRNA-152 (miR-152) and PLK1 (polo-like kinase 1) in GC cell lines was detected by quantitative RT-PCR and Western blot. The roles of E2F3 and miR-152 in GC metastasis were classified using gain-of-function and loss-of-function assays. The miRNAs directly targeting E2F3 were identified by bioinformatics analysis and luciferase reporter experiment. Chromatin immunoprecipitation was carried out to reveal the correlation between E2F3 and PLK1. Results E2F3 expression was frequently up-regulated in GC tissues, and its high expression might imply poor prognosis. Downregulation of E2F3 restrained GC migration and invasion in vitro and in vivo. Interestingly, we proved that miR-152 was an upstream regulator of E2F3. Moreover, miR-152 reduced E2F3 expression by directly targeting its 3ʹ-UTR, and then modulated GC metastasis via polo-like kinase 1 (PLK1) mediated protein kinase B (AKT) and extracellular signal-regulated kinase (ERK) signals. Conclusion E2F3 plays a crucial role in GC progression and the newly discovered miR-152/E2F3/PLK1 axis provides a new underlying target for therapy of metastasis in GC patients.
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Affiliation(s)
- Liangliang Shi
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Hao Zhu
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Yonghua Shen
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Xiaotan Dou
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Huimin Guo
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Pin Wang
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Shu Zhang
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Lin Zhou
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Xiaoping Zou
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
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5
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Zheng J, Xu T, Chen F, Zhang Y. MiRNA-195-5p Functions as a Tumor Suppressor and a Predictive of Poor Prognosis in Non-small Cell Lung Cancer by Directly Targeting CIAPIN1. Pathol Oncol Res 2019; 25:1181-1190. [PMID: 30637589 PMCID: PMC6614139 DOI: 10.1007/s12253-018-0552-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 11/19/2018] [Indexed: 12/21/2022]
Abstract
Accumulating evidence suggests that microRNAs (miRNAs) has been proven to be a critical regulator in the tumor progression, of which miR-195-5p was reported to function as tumor suppressor in prostate cancer and oral squamous cell carcinoma. However, studies on the clinical significance and biological function of miR-195-5p in non-small cell lung cancer (NSCLC) were still unavailable. Here, we reported that the expression of miR-195-5p was decreased in NSCLC tissues and cell lines. Downregulation of miR-195-5p was significantly associated with TNM stage, tumor size and lymph node metastasis. The Kaplan-Meier survival analysis demonstrated that the survival time of NSCLC patients with high expression of miR-195-5p was longer than those with low expression during the 5-year follow up period (p = 0.0410). COX regression analysis indicated that miR-195-5p expression was an independent prognostic indicator for the survival of NSCLC patients (HR = 2.45, 95% CI: 1.53–4.63; p = 0.007). Results of functional analyses revealed that overexpression of miR-195-5p in A549 cells inhibited cell proliferation, induced cell cycle G0/G1 phase arrest and apoptosis using MTT and flow cytometry analysis. Furthermore, bioinformatics and luciferase reporter assays demonstrated that cytokine-induced apoptosis inhibitor 1 (CIAPIN1), an anti-apoptotic molecule was a direct target of miR-195-5p in NSCLC cells. Meta-analysis based on Oncomine database showed CIAPIN1 was significantly up-regulated in human lung cancer tissues. Consistently, knockdown of CIAPIN1 phenocopied the inhibitory effects of miR-195-5p overexpression in NSCLC cell function. These findings suggest that miR-195-5p could be used as a potential prognostic predictor and tumor suppressor in NSCLC.
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MESH Headings
- A549 Cells
- Adenocarcinoma of Lung/genetics
- Adenocarcinoma of Lung/metabolism
- Adenocarcinoma of Lung/secondary
- Adenocarcinoma of Lung/surgery
- Apoptosis
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Carcinoma, Non-Small-Cell Lung/surgery
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/metabolism
- Carcinoma, Squamous Cell/secondary
- Carcinoma, Squamous Cell/surgery
- Cell Proliferation
- Female
- Follow-Up Studies
- Gene Expression Regulation, Neoplastic
- Humans
- Intracellular Signaling Peptides and Proteins/genetics
- Intracellular Signaling Peptides and Proteins/metabolism
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Lung Neoplasms/surgery
- Lymphatic Metastasis
- Male
- MicroRNAs/genetics
- Middle Aged
- Prognosis
- Survival Rate
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Affiliation(s)
- Jing Zheng
- Department of Respiratory Medicine, Taizhou Hospital, 381 East Zhongshan Road, Jiaojiang District, Taizhou, Zhejiang, 318000, NO, China
| | - Tingting Xu
- Department of Respiratory Medicine, Taizhou Hospital, 381 East Zhongshan Road, Jiaojiang District, Taizhou, Zhejiang, 318000, NO, China.
| | - Feng Chen
- Department of Respiratory Medicine, Taizhou Hospital, 381 East Zhongshan Road, Jiaojiang District, Taizhou, Zhejiang, 318000, NO, China
| | - Ying Zhang
- Department of Respiratory Medicine, Taizhou Hospital, 381 East Zhongshan Road, Jiaojiang District, Taizhou, Zhejiang, 318000, NO, China
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6
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Yu SM, Yeo HJ, Choi SY, Kim SJ. Cytokine-induced apoptosis inhibitor-1 causes dedifferentiation of rabbit articular chondrocytes via the ERK-1/2 and p38 kinase pathways. Int J Biochem Cell Biol 2016; 80:10-18. [PMID: 27644154 DOI: 10.1016/j.biocel.2016.09.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 08/19/2016] [Accepted: 09/15/2016] [Indexed: 12/15/2022]
Abstract
Cytokine-induced apoptosis inhibitor-1 (CIAPIN-1, formally named anamorsin) is a well-known regulator of apoptosis in many different cell types. Recently, it has been reported that some anti-apoptotic proteins are involved with the regulation of cell differentiation. However, relatively little is known about the role of CIAPIN-1 on rabbit articular chondrocytes differentiation. In this study, we investigated the effects of CIAPIN-1 in chondrocytes, focusing on extracellular signal-regulated kinase (ERK)-1/2 and p38 kinase signaling. CIAPIN-1 caused dedifferentiation, as determined by the inhibition of type II collagen expression and sulfated-proteoglycan synthesis. CIAPIN-1 activated ERK-1/2 and inactivated p38 kinase, as determined by the phosphorylation level of each protein. CIAPIN-1-induced ERK phosphorylation was abolished by the MEK inhibitor, PD98059, which also prevented the CIAPIN-1-induced loss of type II collagen expression. Inhibition of p38 kinase with SB203580 enhanced the decrease in type II collagen expression. Our findings collectively suggest that ERK-1/2 and p38 kinase regulate CIAPIN-1-induced dedifferentiation in rabbit articular chondrocytes.
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Affiliation(s)
- Seon-Mi Yu
- Department of Biological Sciences, College of Natural Sciences, Kongju National University, Gongju, Republic of Korea
| | - Hyeon Ji Yeo
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chunchon, Republic of Korea
| | - Soo Young Choi
- Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chunchon, Republic of Korea
| | - Song Ja Kim
- Department of Biological Sciences, College of Natural Sciences, Kongju National University, Gongju, Republic of Korea.
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7
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Liu Z, Dou W, Ni Z, Wen Q, Zhang R, Qin M, Wang X, Tang H, Cao Y, Wang J, Zhao S. Deletion of Nrf2 leads to hepatic insulin resistance via the activation of NF-κB in mice fed a high-fat diet. Mol Med Rep 2016; 14:1323-31. [DOI: 10.3892/mmr.2016.5393] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 05/23/2016] [Indexed: 11/06/2022] Open
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8
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Wang J, Li Q, Wang C, Xiong Q, Lin Y, Sun Q, Jin H, Yang F, Ren X, Pang T. Knock-down of CIAPIN1 sensitizes K562 chronic myeloid leukemia cells to Imatinib by regulation of cell cycle and apoptosis-associated members via NF-κB and ERK5 signaling pathway. Biochem Pharmacol 2015; 99:132-45. [PMID: 26679828 DOI: 10.1016/j.bcp.2015.12.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 12/02/2015] [Indexed: 11/15/2022]
Abstract
CIAPIN1 (cytokine-induced apoptosis inhibitor 1) was recently identified as an essential downstream effector of the Ras signaling pathway. However, its potential role in regulating myeloid leukemia cells sensitivity to Imatinib remains unclear. In this study, we found depletion of CIAPIN1 inhibited proliferation and triggered more apoptosis of K562CML (chronic myeloid leukemia) cells with or without Imatinib treatment. Meanwhile, CIAPIN1 depletion decreased ERK5 phosphorylation and NF-κB activity. Importantly, treating CIAPIN1-depleted K562 cells with ERK5 signaling pathway specific inhibitor, XMD8-92, further inhibited proliferation and promoted apoptosis with or without Imatinib treatment. Treatment with the NF-κB specific inhibitor, Bay 11-7082, induced nearly the same inhibition of proliferation and promotion of apoptosis conferred by CIAPIN1 depletion as was observed with XMD8-92 treatment. Further, XMD8-92 and Bay 11-7082 synergistically inhibited proliferation and promoted apoptosis of CIAPIN1-depleted K562 cells with or without Imatinib treatment. The nude mice transplantation model was also performed to confirm the enhanced sensitivity of CIAPIN1-depleted K562 cells to Imatinib. Thus, our results provided a potential management by which CIAPIN1 knock-down might have a crucial impact on enhancing sensitivity of K562 cells to Imatinib in the therapeutic approaches, indicating that CIAPIN1 knock-down might serve as a combination with chemotherapeutical agents in leukemia diseases therapy.
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MESH Headings
- Animals
- Antineoplastic Agents/pharmacology
- Antineoplastic Agents/therapeutic use
- Cell Cycle/drug effects
- Cell Cycle/physiology
- Cell Survival/drug effects
- Cell Survival/physiology
- Dose-Response Relationship, Drug
- Female
- Gene Knockdown Techniques/methods
- Humans
- Imatinib Mesylate/pharmacology
- Imatinib Mesylate/therapeutic use
- Intracellular Signaling Peptides and Proteins/deficiency
- Intracellular Signaling Peptides and Proteins/genetics
- K562 Cells
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Mitogen-Activated Protein Kinase 7/antagonists & inhibitors
- Mitogen-Activated Protein Kinase 7/metabolism
- NF-kappa B/antagonists & inhibitors
- NF-kappa B/metabolism
- Signal Transduction/drug effects
- Signal Transduction/physiology
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Affiliation(s)
- Jian Wang
- Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Immunology and Biotherapy, National Clinical Research Center of Cancer, Tianjin 300060, China; State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing Road 288, Tianjin 300020, China
| | - Qinghua Li
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing Road 288, Tianjin 300020, China
| | - Chijuan Wang
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Key Laboratory of Cancer Prevention and Therapy, State Key Laboratory of Breast Cancer Research, Tianjin 300060, China
| | - Qingqing Xiong
- Department of Hepatobiliary Surgery, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Yani Lin
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing Road 288, Tianjin 300020, China
| | - Qian Sun
- Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Immunology and Biotherapy, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Hao Jin
- Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Immunology and Biotherapy, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Fan Yang
- Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Immunology and Biotherapy, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Xiubao Ren
- Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Immunology and Biotherapy, National Clinical Research Center of Cancer, Tianjin 300060, China
| | - Tianxiang Pang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Hospital of Blood Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing Road 288, Tianjin 300020, China.
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9
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He L, Che M, Hu J, Li S, Jia Z, Lou W, Li C, Yang J, Sun S, Wang H, Chen X. Twist contributes to proliferation and epithelial-to-mesenchymal transition-induced fibrosis by regulating YB-1 in human peritoneal mesothelial cells. THE AMERICAN JOURNAL OF PATHOLOGY 2015; 185:2181-93. [PMID: 26055210 DOI: 10.1016/j.ajpath.2015.04.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/05/2015] [Accepted: 04/23/2015] [Indexed: 10/23/2022]
Abstract
Twist is overexpressed in high glucose (HG) damage of human peritoneal mesothelial cells (HPMCs) in vitro. Herein, we further identified its precise function related to fibrosis of peritoneal membranes (PMs). The overexpression and activation of Twist and YB-1 (official name, YBX1) and a transformed fibroblastic phenotype of HPMCs were found to be positively related to epithelial-mesenchymal transition progress and PM fibrosis ex vivo in 93 patients who underwent continuous ambulatory peritoneal dialysis (PD), and also in HG-induced immortal HPMCs and an animal model of PD. Evidence from chromatin immunoprecipitation and luciferase reporter assays supported that YBX1 is transcriptionally regulated by the direct binding of Twist to E-box. Overexpression of Twist and YB-1 led to an increase in epithelial-mesenchymal transition, proliferation, and cell cycle progress of HPMCs, which might contribute to PM fibrosis. In contrast, the silencing of Twist or YB-1 inhibited HG-induced growth and cell cycle progression of HPMCs; this led to a down-regulation in the expression of cyclin Ds and cyclin-dependent kinases, finally inhibiting PM fibrosis. Twist contributes to PM fibrosis during PD treatment, mainly through regulation of YB-1.
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Affiliation(s)
- Lijie He
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China; State Key Laboratory of Cancer Biology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Mingwen Che
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China; State Key Laboratory of Cancer Biology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China; Department of Medicine, No. 273 Hospital of PLA, Korla, Xinjiang, People's Republic of China
| | - Jinping Hu
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China; State Key Laboratory of Cancer Biology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Sutong Li
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China; Department of Nephrology, the Central Hospital of Xi'an, Xi'an, Shaanxi, People's Republic of China
| | - Zhen Jia
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China; Department of Nephrology, the First Hospital of Xi'an, Xi'an, Shaanxi, People's Republic of China
| | - Weijuan Lou
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Cuixiang Li
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Jun Yang
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Shiren Sun
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
| | - Hanmin Wang
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China.
| | - Xiangmei Chen
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China; Department of Nephrology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital and Medical College, Beijing, People's Republic of China
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10
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WANG XIAOBO, PAN JINGXUAN, LI JUAN. Cytokine-induced apoptosis inhibitor 1 inhibits the growth and proliferation of multiple myeloma. Mol Med Rep 2015; 12:2056-62. [DOI: 10.3892/mmr.2015.3656] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 12/09/2014] [Indexed: 11/06/2022] Open
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11
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Zhang C. Essential functions of iron-requiring proteins in DNA replication, repair and cell cycle control. Protein Cell 2014; 5:750-60. [PMID: 25000876 PMCID: PMC4180463 DOI: 10.1007/s13238-014-0083-7] [Citation(s) in RCA: 180] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 05/04/2014] [Indexed: 02/06/2023] Open
Abstract
Eukaryotic cells contain numerous iron-requiring proteins such as iron-sulfur (Fe-S) cluster proteins, hemoproteins and ribonucleotide reductases (RNRs). These proteins utilize iron as a cofactor and perform key roles in DNA replication, DNA repair, metabolic catalysis, iron regulation and cell cycle progression. Disruption of iron homeostasis always impairs the functions of these iron-requiring proteins and is genetically associated with diseases characterized by DNA repair defects in mammals. Organisms have evolved multi-layered mechanisms to regulate iron balance to ensure genome stability and cell development. This review briefly provides current perspectives on iron homeostasis in yeast and mammals, and mainly summarizes the most recent understandings on iron-requiring protein functions involved in DNA stability maintenance and cell cycle control.
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Affiliation(s)
- Caiguo Zhang
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, 80045, USA,
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12
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The anti-apoptotic gene Anamorsin is essential for both autonomous and extrinsic regulation of murine fetal liver hematopoiesis. Exp Hematol 2014; 42:410-422.e4. [PMID: 24440520 DOI: 10.1016/j.exphem.2014.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 12/27/2013] [Accepted: 01/06/2014] [Indexed: 12/29/2022]
Abstract
Anamorsin (AM) is an antiapoptotic molecule that confers factor-independent survival on hematopoietic cells. AM-deficient (AM(-/-)) mice are embryonic lethal because of a defect in definitive hematopoiesis; however, the significance of AM in embryonic hematopoiesis remains unknown. This study characterized the hematopoietic defects in AM(-/-) fetal livers. The AM(-/-) fetal liver displayed significantly reduced numbers of c-Kit(+)Sca-1(+)Lin(-) (KSL) cells. An in vitro colony-forming unit assay showed that fetal liver cells isolated from AM(-/-) embryos gave rise to fewer colonies in all cell types. The reconstitution activity in AM(-/-) hematopoietic stem cells (HSCs) was markedly reduced in all lineages. Furthermore, the limiting dilution assay revealed that the number of fetal liver HSCs was reduced because of AM deficiency. Retrovirus-mediated AM expression rescued the defective hematopoietic colony-forming activities of AM(-/-) KSL cells. We also investigated the effects of AM deficiency on fetal liver stromal cells, which support hematopoiesis. Interestingly, primary stromal cell cultures from wild type fetal liver supported the growth of AM(-/-) KSL cells, but stromal cultures from AM(-/-) fetal liver provided little support of wild type KSL cell growth. These results demonstrated that AM was essential for both autonomous and extrinsic regulation of fetal liver hematopoiesis. This study provided new insight into the molecular regulation of hematopoiesis.
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Li X, Lv L, Zheng J, Zhou J, Liu B, Chen H, Liang C, Wang R, Su L, Li X, Fan D. The significance of LRPPRC overexpression in gastric cancer. Med Oncol 2013; 31:818. [PMID: 24375316 PMCID: PMC3899470 DOI: 10.1007/s12032-013-0818-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 12/06/2013] [Indexed: 01/06/2023]
Abstract
LRPPRC is a multifunctional protein involved in mitochondrial gene expression and function, cell cycle progression, and tumorigenesis. We analyzed LRPPRC gene expression in 253 paired cases of gastric cancer and noncancerous regions and six gastric cancer cell lines to demonstrate the importance of LRPPRC expression for the prediction of prognosis of gastric cancer. Our results showed that LRPPRC expression in gastric cancer tissues is significantly higher than that in paired control tissue (P < 0.001). Patients with higher LRPPRC expression showed a poorer overall survival rate than those with lower LRPPRC expression (P < 0.001). Multivariate analysis demonstrated that lymph node metastasis (N), distant metastasis (M), TNM stage, and LRPPRC expression were independent prognostic factors for gastric cancer (P = 0.004, 0.002, 0.017, 0.004 respectively).Moreover, Western blotting showed that LRPPRC expression was increased in SGC7901, BGC823, MKN45, and XGC9811cells. The in vitro proliferation assay showed that LRPPRC expression is inversely associated with gastric cancer cells growth. Our results indicated that LRPPRC could be used as a predictive marker for patient prognosis of gastric cancer and may be a novel therapeutic target for gastric cancer in future.
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Affiliation(s)
- Xiaosa Li
- State Key Laboratory of Cancer Biology, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 127# Changle West Road, Xi'an, 710032, China,
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14
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Ma X, Gao Y, Fan Y, Ni D, Zhang Y, Chen W, Zhang P, Song E, Huang Q, Ai Q, Li H, Wang B, Zheng T, Shi T, Zhang X. Overexpression of E2F1 promotes tumor malignancy and correlates with TNM stages in clear cell renal cell carcinoma. PLoS One 2013; 8:e73436. [PMID: 24023875 PMCID: PMC3762742 DOI: 10.1371/journal.pone.0073436] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 07/21/2013] [Indexed: 12/16/2022] Open
Abstract
Background Transcription factor E2F1 exerts effects on many types of cancers. As an upstream regulator of a host of genes, E2F1 can trigger diverse aberrant transcription processes that may dominate malignancy. Clear cell renal cell carcinoma (ccRCC) is the most common subtype in renal cell carcinoma which displays high malignancy and has a shortage of biomarkers in clinics. Our study aimed to explore the function of E2F1 in ccRCC and its correlation with clinicopathological parameters. Methodology/Principle Findings Transcription factor E2F1 was mainly distributed in cancer cell nucleus and mRNA expression significantly increased in 72 cases of clear cell renal cell carcinoma (ccRCC) tissues compared with adjacent non-cancerous kidney tissues (p<0.001). The protein expression was consistent with mRNA expression. Further analysis in 92 cases indicated that E2F1 mRNA level expression was associated with the tumor pathologic parameters embracing diameter, Fuhrman tumor grade, pT stage, TNM stage grouping and macrovascular infiltration (MAVI). These surgical specimens had high grade tumors accompanied with an elevated E2F1 expression. Moreover, E2F1 transfection was found to contribute significantly to cancer cell proliferation, migration and invasion in vitro. Conclusions/Significance Overexpression of E2F1 may be a key event in the local and vascular infiltration of ccRCC indicated by the activation of matrix metalloproteinase (MMP) 2 and MMP9. These findings highlighted the implication of E2F1’s function in the metastatic process. Furthermore, the clinical relevance of E2F1 in ccRCC pointed to a potential new therapeutic target.
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Affiliation(s)
- Xin Ma
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Yu Gao
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Yang Fan
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Dong Ni
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Yu Zhang
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Weihao Chen
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Peng Zhang
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Erlin Song
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Qingbo Huang
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Qing Ai
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Hongzhao Li
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Baojun Wang
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Tao Zheng
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Taoping Shi
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Xu Zhang
- Department of Urology/State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
- * E-mail:
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15
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Zhou L, Zhao X, Han Y, Lu Y, Shang Y, Liu C, Li T, Jin Z, Fan D, Wu K. Regulation of UHRF1 by miR-146a/b modulates gastric cancer invasion and metastasis. FASEB J 2013; 27:4929-39. [PMID: 23982143 DOI: 10.1096/fj.13-233387] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Epigenetic changes play significant roles in the development of cancer. UHRF1, as an epigenetic regulator, has been shown to be overexpressed and to coordinate tumor suppressor gene silencing in several cancers. However, the role and underlying mechanism of UHRF1 in gastric cancer (GC) progression remain largely unknown. In this study, we investigated the expression and function of UHRF1 in GC metastasis and explored its upstream regulatory mechanisms at the microRNA level. UHRF1 was overexpressed in GC tissues, especially in metastatic ones, and a high level of UHRF1 expression predicted poor survival. The down-regulation of UHRF1 suppressed GC invasion and metastasis in vitro and in vivo. We identified and verified miR-146a and miR-146b as direct upstream regulators of UHRF1. Furthermore, the restoration of miR-146a/b dramatically reduced the expression of UHRF1 through the direct targeting of its 3'-UTR, and this effect in turn reactivated the slit homologue 3 (Slit3), cadherin 4 (CDH4), and runt-related transcription factor 3 (RUNX3) genes via promoter demethylation. Finally, analyses of miR-146a/b and UHRF1 levels in human GC tissues revealed that miR-146a/b correlated inversely with UHRF1 expression. These findings describe a new mechanism for the regulation of UHRF1 and aberrant DNA hypermethylation in GC. The newly identified miR-146a/b/UHRF1 axis provides insight into the GC metastasis process, and targeting this novel axis represents a therapeutic approach to blocking GC metastasis.
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Affiliation(s)
- Lin Zhou
- 3Xijing Hospital of Digestive Diseases, State Key Laboratory of Cancer Biology, West Changle Road, Xi'an 710032, China. K. W.,
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16
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Xu Y, Wang K, Gao W, Zhang C, Huang F, Wen S, Wang B. MicroRNA-106b regulates the tumor suppressor RUNX3 in laryngeal carcinoma cells. FEBS Lett 2013; 587:3166-74. [PMID: 23912048 DOI: 10.1016/j.febslet.2013.05.069] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 05/10/2013] [Accepted: 05/19/2013] [Indexed: 01/27/2023]
Abstract
Our study focuses on a set of laryngeal tumors that show reduced RUNX3 expression in the absence of transcriptional silencing of tumor suppressor gene RUNX3 by aberrant methylation of CpG islands. We report that the loss of expression of RUNX3 correlates with up-regulation of miR-106b in human laryngeal carcinoma tissue. The downregulation of RUNX3 is mediated by miR-106b through binding of its 3'UTR. Moreover, miR-106b can promote the proliferation and invasion of laryngeal carcinoma cells by directly targeting RUNX3, and RUXN3 knockdown can abolish this phenotype. These results shed a new insight into the mechanism of miRNA regulation in laryngeal carcinoma.
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Affiliation(s)
- Ying Xu
- Department of Otolaryngology, Head and Neck Surgery, The First Hospital, Shanxi Medical University, Taiyuan, Shanxi, China
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Marzuk O, Peretz G, Bakhrat A, Abdu U. DrosophilaCIAPIN1 homologue is required for follicle cell proliferation and survival. Dev Dyn 2013; 242:731-7. [DOI: 10.1002/dvdy.23951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 02/14/2013] [Accepted: 02/14/2013] [Indexed: 11/07/2022] Open
Affiliation(s)
- Orly Marzuk
- Department of Life Sciences; Ben-Gurion University; Beer-Sheva; Israel
| | - Gabriella Peretz
- Department of Life Sciences; Ben-Gurion University; Beer-Sheva; Israel
| | - Anna Bakhrat
- Department of Life Sciences; Ben-Gurion University; Beer-Sheva; Israel
| | - Uri Abdu
- Department of Life Sciences; Ben-Gurion University; Beer-Sheva; Israel
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18
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Jian CX, Yang MZ, Li P, Xiong J, Zhang ZJ, Li CJ, Chen A, Hu CM, Zhou JX, Li SH. Ectopically expressed IBP promotes cell proliferation in oral squamous cell carcinoma. Cancer Invest 2012; 30:748-56. [PMID: 23088770 DOI: 10.3109/07357907.2012.734355] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
IFN regulatory factor 4 binding protein (IBP) has been shown to play an important role in the progression of malignant tumors such as breast cancer cells, but its function in oral squamous cell carcinoma (OSCC) remains unclear. We found that IBP ectopically expressed in some OSCC specimens but not in normal oral mucosa epithelium tissues. IBP expression was significantly correlated with tumor size, differentiation, clinical stage, and distant metastasis. Furthermore, IBP markedly promoted OSCC cell proliferation, shortened the G1 interval in the cell cycle, and increased cyclin D1 expression. These findings suggest that IBP may be a potential therapeutic target for OSCC.
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Affiliation(s)
- Cong-Xiang Jian
- Department of Clinical Biochemistry, Laboratory Sciences, the Third Military Medical University, Chongqing, PR China
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Down regulation of CIAPIN1 reverses multidrug resistance in human breast cancer cells by inhibiting MDR1. Molecules 2012; 17:7595-611. [PMID: 22717413 PMCID: PMC6268881 DOI: 10.3390/molecules17067595] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 06/11/2012] [Accepted: 06/11/2012] [Indexed: 11/30/2022] Open
Abstract
Cytokine-induced apoptosis inhibitor 1 (CIAPIN1), initially named anamorsin, a newly indentified antiapoptotic molecule is a downstream effector of the receptor tyrosine kinase-Ras signaling pathway. Current study has revealed that CIAPIN1 may have wide and important functions, especially due to its close correlations with malignant tumors. However whether or not it is involved in the multi-drug resistance (MDR) process of breast cancer has not been elucidated. To explore the effect of CIAPIN1 on MDR, we examined the expression of P-gp and CIAPIN1 by immunohistochemistry and found there was positive correlation between them. Then we successfully interfered with RNA translation by the infection of siRNA of CIAPIN1 into MCF7/ADM breast cancer cell lines through a lentivirus, and the expression of the target gene was significantly inhibited. After RNAi the drug resistance was reduced significantly and the expression of MDR1mRNA and P-gp in MCF7/ADM cell lines showed a significant decrease. Also the expression of P53 protein increased in a statistically significant way (p ≤ 0.01) after RNAi exposure. In addition, flow cytometry analysis reveals that cell cycle and anti-apoptotic enhancing capability of cells changed after RNAi treatment. These results suggested CIAPIN1 may participate in breast cancer MDR by regulating MDR1 and P53 expression, changing cell cycle and enhancing the anti-apoptotic capability of cells.
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Cai X, Wang J, Xin X. CIAPIN1 nuclear accumulation predicts poor clinical outcome in epithelial ovarian cancer. World J Surg Oncol 2012; 10:112. [PMID: 22713669 PMCID: PMC3502349 DOI: 10.1186/1477-7819-10-112] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Accepted: 05/20/2012] [Indexed: 12/02/2022] Open
Abstract
Background Epithelial ovarian cancer (EOC) is an aggressive disease with poor prognosis. The expression of cytokine-induced apoptosis inhibitor 1 (CIAPIN1) correlates with the malignant progression of several cancers. However, the relationship between the subcellular localization of CIAPIN1 and clinical characteristics in EOC remains unclear. Methods Immunohistochemistry was performed to detect CIAPIN1 expression in 108 EOC tissues. CIAPIN1 expressions in eight fresh EOC tissues were detected by Western blotting. The relationship between CIAPIN1 subcellular expression and patients’ clinicopathological features, including prognosis, was evaluated. Immunohistochemistry and immunofluorescence were employed to assess the CIAPIN1 subcellular localization in the EOC cell lines A2780 and HO8910. In addition, all patients were followed up to assess the prognostic value of CIAPIN1 in patients with EOC. Results CIAPIN1 is highly expressed in EOC, but is present at low levels in paired non-cancerous ovarian epithelial tissues. The results of Western blotting were in accordance with the immunohistochemical results. Poor differentiation of the tumors and EOC cell lines correlated with higher levels of CIAPIN1 nuclear expression. CIAPIN1 nuclear expression significantly correlated with the Federation International of Gynecology and Obstetrics (FIGO) stage and histological differentiation (P = 0.034 and P < 0.0001, respectively). Moreover, nuclear localization of CIAPIN1 was selected as an unfavorable prognostic factor by both univariate and multivariate analyses ( P < 0.001). However, no significant correlations were observed between cytoplasmic localization of CIAPIN1 and clinicopathological parameters. Conclusions CIAPIN1 might play a crucial role in the differentiation of EOC cells. Elevated expression of nuclear CIAPIN1 negatively correlated with the survival of EOC patients, suggesting that nuclear CIAPIN1 might serve as a prognostic biomarker for EOC patients.
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Affiliation(s)
- Xiaolan Cai
- Department of Gynecology and Obstetrics, Xijing Hospital, the Fourth Military Medical University, Number 15, Changle Western Road, Xi'an, 370032, China
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Overexpression of CIAPIN1 inhibited pancreatic cancer cell proliferation and was associated with good prognosis in pancreatic cancer. Cancer Gene Ther 2012; 19:538-44. [PMID: 22677939 DOI: 10.1038/cgt.2012.28] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Cytokine-induced antiapoptotic molecule (CIAPIN1), a newly identified apoptosis inhibitor, has been found to participate in the process of proliferation and tumorigenicity for several cancers. The aim of this study was to evaluate the prognostic value of CIAPIN1 in pancreatic cancer and to probe its function in pancreatic carcinogenesis. We found that CIAPIN1 protein was absent or reduced in pancreatic cancer cell lines. There was also a loss or decrease in CIAPIN1 expression in 118 cases of pancreatic cancer tissues as compared with that in 82 cases of normal pancreatic tissues. In a Cox proportional hazards model, CIAPIN1 expression independently predicted better survival (P<0.0001). Adenoviral-mediated restoration of CIAPIN1 expression greatly repressed the proliferation of pancreatic cancer cell in vitro and suppressed the tumorigenicity of pancreatic cancer cell in Balb/c nude mice. Our data also revealed that inhibition of pancreatic cancer cells proliferation by enforcing CIAPIN1 expression at least partly through delaying cell cycle progression and inducing cell apoptosis. In summary, our work revealed a novel function of CIAPIN1, which might possibly be used as an independent prognostic factor and a potential therapeutic target for pancreatic cancer.
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Zhao X, Dou W, He L, Liang S, Tie J, Liu C, Li T, Lu Y, Mo P, Shi Y, Wu K, Nie Y, Fan D. MicroRNA-7 functions as an anti-metastatic microRNA in gastric cancer by targeting insulin-like growth factor-1 receptor. Oncogene 2012; 32:1363-72. [PMID: 22614005 DOI: 10.1038/onc.2012.156] [Citation(s) in RCA: 181] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Metastasis is a major clinical obstacle in the treatment of gastric cancer (GC) and it accounts for the majority of cancer-related mortality. MicroRNAs have recently emerged as regulators of metastasis by acting on multiple signaling pathways. In this study, we found that miR-7 is significantly downregulated in highly metastatic GC cell lines and metastatic tissues. Both gain-of-function and loss-of-function experiments showed that increased miR-7 expression significantly reduced GC cell migration and invasion, whereas decreased miR-7 expression dramatically enhanced cell migration and invasion. In vivo metastasis assays also demonstrated that overexpression of miR-7 markedly inhibited GC metastasis. Moreover, the insulin-like growth factor-1 receptor (IGF1R) oncogene, which is often mutated or amplified in human cancers and functions as an important regulator of cell growth and tumor invasion, was identified as a direct target of miR-7. Silencing of IGF1R using small interefering RNA (siRNA) recapitulated the anti-metastatic function of miR-7, whereas restoring the IGF1R expression attenuated the function of miR-7 in GC cells. Furthermore, we found that suppression of Snail by miR-7, through targeting IGF1R, increased E-cadherin expression and partially reversed the epithelial-mesenchymal transition (EMT). Finally, analyses of miR-7 and IGF1R levels in human primary GC with matched lymph node metastasis tissue arrays revealed that miR-7 is inversely correlated with IGF1R expression. The present study provides insight into the specific biological behavior of miR-7 in EMT and tumor metastasis. Targeting this novel miR-7/IGF1R/Snail axis would be helpful as a therapeutic approach to block GC metastasis.
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Affiliation(s)
- X Zhao
- State Key Laboratory of Cancer Biology and Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
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He L, Zhao X, Wang H, Zhang P, Guo C, Huang C, Liu X, Yao F, Chen Y, Lou W, Sun S, Fan D. RUNX3 mediates suppression of tumor growth and metastasis of human CCRCC by regulating cyclin related proteins and TIMP-1. PLoS One 2012; 7:e32961. [PMID: 22457727 PMCID: PMC3310845 DOI: 10.1371/journal.pone.0032961] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Accepted: 02/08/2012] [Indexed: 01/29/2023] Open
Abstract
Here we presented that the expression of RUNX3 was significantly decreased in 75 cases of clear cell renal cell carcinoma (CCRCC) tissues (p<0.05). Enforced RUNX3 expression mediated 786-O cells to exhibit inhibition of growth, G1 cell-cycle arrest and metastasis in vitro, and to lost tumorigenicity in nude mouse model in vivo. RUNX3-induced growth suppression was found partially to regulate various proteins, including inhibition of cyclinD1, cyclinE, cdk2, cdk4 and p-Rb, but increase of p27Kip1, Rb and TIMP-1. Therefore, RUNX3 had the function of inhibiting the proliferative and metastatic abilities of CCRCC cells by regulating cyclins and TIMP1.
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Affiliation(s)
- Lijie He
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
- Xijing Hospital of Digestive Diseases, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Xiaodi Zhao
- Xijing Hospital of Digestive Diseases, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Hanmin Wang
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Peng Zhang
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Changcun Guo
- Xijing Hospital of Digestive Diseases, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Chen Huang
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Xiaowei Liu
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Fangfang Yao
- Xijing Hospital of Digestive Diseases, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Yu Chen
- Xijing Hospital of Digestive Diseases, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Weijuan Lou
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Shiren Sun
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
- * E-mail: (DF); (SS)
| | - Daiming Fan
- Xijing Hospital of Digestive Diseases, State Key Laboratory of Cancer Biology, Fourth Military Medical University, Xi’an, Shaanxi, China
- * E-mail: (DF); (SS)
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Downregulation of RPL6 by siRNA inhibits proliferation and cell cycle progression of human gastric cancer cell lines. PLoS One 2011; 6:e26401. [PMID: 22043320 PMCID: PMC3197136 DOI: 10.1371/journal.pone.0026401] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2011] [Accepted: 09/26/2011] [Indexed: 12/16/2022] Open
Abstract
Our previous study revealed that human ribosomal protein L6 (RPL6) was up-regulated in multidrug-resistant gastric cancer cells and over-expression of RPL6 could protect gastric cancer from drug-induced apoptosis. It was further demonstrated that up-regulation of RPL6 accelerated growth and enhanced in vitro colony forming ability of GES cells while down-regulation of RPL6 exhibited the opposite results. The present study was designed to investigate the potential role of RPL6 in therapy of gastric cancer for clinic. The expression of RPL6 and cyclin E in gastric cancer tissues and normal gastric mucosa was evaluated by immunohistochemisty. It was found that RPL6 and cyclin E were expressed at a higher level in gastric cancer tissues than that in normal gastric mucosa and the two were correlative in gastric cancer. Survival time of postoperative patients was analyzed by Kaplan- Meier analysis and it was found that patients with RPL6 positive expression showed shorter survival time than patients that with RPL6 negative expression. RPL6 was then genetically down-regulated in gastric cancer SGC7901 and AGS cell lines by siRNA. It was demonstrated that down-regulation of RPL6 reduced colony forming ability of gastric cancer cells in vitro and reduced cell growth in vivo. Moreover, down-regulation of RPL6 could suppress G1 to S phase transition in these cells. Further, we evidenced that RPL6 siRNA down-regulated cyclin E expression in SGC7901 and AGS cells. Taken together, these data suggested that RPL6 was over-expressed in human gastric tissues and caused poor prognosis. Down-regulation of RPL6 could suppress cell growth and cell cycle progression at least through down-regulating cyclin E and which might be used as a novel approach to gastric cancer therapy.
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Li J, Huang X, Xie X, Wang J, Duan M. Human telomerase reverse transcriptase regulates cyclin D1 and G1/S phase transition in laryngeal squamous carcinoma. Acta Otolaryngol 2011; 131:546-51. [PMID: 21492065 DOI: 10.3109/00016489.2011.557393] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
CONCLUSION Down-regulating human telomerase reverse transcriptase (hTERT) expression will significantly suppress the cell viability of laryngeal squamous cell carcinoma Hep-2, which was mainly due to the inhibition of cyclin D1 and thus G1/S phase transition. OBJECTIVE Small-interfering RNA (siRNA) targeting hTERT can arrest the cell cycle of cancer cells, as well as inhibit telomerase activity and cell viability. However, the precise mechanisms still remain unclear. Here, we investigate the regulatory role of hTERT in cyclin D1 in laryngeal squamous carcinoma. METHODS Short hairpin RNAs (shRNAs) specifically targeting hTERT were constructed and expressed in Hep-2 cells. Cell proliferation was measured by CCK-8 assay. Expression of hTERT, cyclin D1, cyclin E, c-myc, and GAPDH was detected by RT-PCR and Western blot; cyclin D1 and hTERT proteins in laryngeal squamous carcinoma tissue microarray were analyzed by quantum dots immunofluorescence. RESULTS hTERT silence by shRNAs decreased the proliferation of Hep-2 cells by 76.8% at day 4 (96 h). Furthermore, transfection with hTERT shRNA for 48 h also significantly reduced expression of hTERT, cyclin D1, and c-Myc, but not cyclin E. Quantum dots immunofluorescence analysis of 36 laryngeal squamous carcinoma tissue samples found that hTERT expression was highly correlated with cyclin D1 expression.
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Affiliation(s)
- Jun Li
- Department of Otolaryngology, Head and Neck Surgery, Zhongshan Hospital, Fudan University, FengLin Road #180, XuHui, Shanghai, PR China
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Saito Y, Shibayama H, Tanaka H, Tanimura A, Matsumura I, Kanakura Y. PICOT is a molecule which binds to anamorsin. Biochem Biophys Res Commun 2011; 408:329-33. [DOI: 10.1016/j.bbrc.2011.04.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Accepted: 04/07/2011] [Indexed: 10/18/2022]
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Secretome Analysis of Skeletal Myogenesis Using SILAC and Shotgun Proteomics. INTERNATIONAL JOURNAL OF PROTEOMICS 2011; 2011:329467. [PMID: 22084683 PMCID: PMC3200090 DOI: 10.1155/2011/329467] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Accepted: 01/26/2011] [Indexed: 12/18/2022]
Abstract
Myogenesis, the formation of skeletal muscle, is a multistep event that commences with myoblast proliferation, followed by cell-cycle arrest, and finally the formation of multinucleated myotubes via fusion of mononucleated myoblasts. Each step is orchestrated by well-documented intracellular factors, such as cytoplasmic signalling molecules and nuclear transcription factors. Regardless, the key step in getting a more comprehensive understanding of the regulation of myogenesis is to explore the extracellular factors that are capable of eliciting the downstream intracellular factors. This could further provide valuable insight into the acute cellular response to extrinsic cues in maintaining normal muscle development. In this paper, we survey the intracellular factors that respond to extracellular cues that are responsible for the cascades of events during myogenesis: myoblast proliferation, cell-cycle arrest of myoblasts, and differentiation of myoblasts into myotubes. This focus on extracellular perspective of muscle development illustrates our mass spectrometry-based proteomic approaches to identify differentially expressed secreted factors during skeletal myogenesis.
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Chan CYX, Masui O, Krakovska O, Belozerov VE, Voisin S, Ghanny S, Chen J, Moyez D, Zhu P, Evans KR, McDermott JC, Siu KWM. Identification of differentially regulated secretome components during skeletal myogenesis. Mol Cell Proteomics 2011; 10:M110.004804. [PMID: 21343469 DOI: 10.1074/mcp.m110.004804] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Myogenesis is a well-characterized program of cellular differentiation that is exquisitely sensitive to the extracellular milieu. Systematic characterization of the myogenic secretome (i.e. the ensemble of secreted proteins) is, therefore, warranted for the identification of novel secretome components that regulate both the pluripotency of these progenitor mesenchymal cells, and also their commitment and passage through the differentiation program. Previously, we have successfully identified 26 secreted proteins in the mouse skeletal muscle cell line C2C12 (1). In an effort to attain a more comprehensive picture of the regulation of myogenesis by its extracellular milieu, quantitative profiling employing stable isotope labeling by amino acids in cell culture was implemented in conjunction with two parallel high throughput online reverse phase liquid chromatography-tandem mass spectrometry systems. In summary, 34 secreted proteins were quantified, 30 of which were shown to be differentially expressed during muscle development. Intriguingly, our analysis has revealed several novel up- and down-regulated secretome components that may have critical biological relevance for both the maintenance of pluripotency and the passage of cells through the differentiation program. In particular, the altered regulation of secretome components, including follistatin-like protein-1, osteoglycin, spondin-2, and cytokine-induced apoptosis inhibitor-1, along with constitutively expressed factors, such as fibulin-2, illustrate dynamic changes in the secretome that take place when differentiation to a specific lineage occurs.
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Affiliation(s)
- C Y X'avia Chan
- Department of Biology, York University, 4700 Keele Street, Toronto, Ontario, Canada
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A cell-death-defying factor, anamorsin mediates cell growth through inactivation of PKC and p38MAPK. Biochem Biophys Res Commun 2011; 405:303-7. [DOI: 10.1016/j.bbrc.2011.01.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Accepted: 01/06/2011] [Indexed: 11/23/2022]
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Shi H, Zhou Y, Liu H, Chen C, Li S, Li N, Li X, Zhang X, Zhang H, Wang W, Zhao Q. Expression of CIAPIN1 in human colorectal cancer and its correlation with prognosis. BMC Cancer 2010; 10:477. [PMID: 20815902 PMCID: PMC2944177 DOI: 10.1186/1471-2407-10-477] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Accepted: 09/03/2010] [Indexed: 12/14/2022] Open
Abstract
Background The cytokine-induced anti-apoptotic molecule (CIAPIN1) had been found to be a differentially-expressed gene involved in a variety of cancers, and it was also considered as a candidate tumour suppressor gene in gastric cancer, renal cancer and liver cancer. However, studies on the role of CIAPIN1 in colorectal cancer were still unavailable. The aim of this study was to determine the prognostic impact of CIAPIN1 in 273 colorectal cancer (CRC) samples and to investigate the CIAPIN1 expression in CRC cell lines after inducing differentiation. Methods Immunohistochemical analysis was performed to detect the expression of CIAPIN1 in CRC samples from 273 patients. The relationship between CIAPIN1 expression and patients' characteristics (gender, age, location of cancer, UICC stage, local recurrence and tumour grade factors) was evaluated. In addition, these patients were followed up for five consecutive years to investigate the relationship between CIAPIN1 expression and the prognosis of CRC. We induced the differentiation of the CRC cell lines HT29 and SW480, in order to detect the expression of CIAPIN1 in the process of CRC cells differentiation. Results Results indicated that CIAPIN1 was mainly expressed in the cytoplasm and nucleus, and that its expression level in cancer samples was significantly lower than in normal tissues. The Wilcoxon-Mann-Whitney test showed a significant difference in the differential expression of CIAPIN1 in patients with different T and UICC stages, and tumour grade (P = 0.0393, 0.0297 and 0.0397, respectively). The Kaplan-Meier survival analysis demonstrated that the survival time of CRC patients with high expression of CIAPIN1 was longer than those with low expression during the 5-year follow up period (P = 0.0002). COX regression analysis indicated that low expression of CIAPIN1, cancer stage of > pT1, distant organ metastasis (pM1), regional lymph node metastasis (> pN1) and local recurrence (yes) were independent, poor prognostic factors of CRC (P = 0.012, P = 0.032, P <0.001, P <0.001, P <0.001 respectively). Both Western blotting and RT-PCR showed that CIAPIN1 expression was increased with the degree of differentiation of HT29 and SW480 cells. Conclusions CIAPIN1 played an important role in the differentiation of CRC cells, and the differential expression of CIAPIN1 in CRC was closely related to prognosis.
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Affiliation(s)
- Hai Shi
- State Key Laboratory of Cancer Biology, Department of Gastrointestinal Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China.
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Abstract
IMPORTANCE OF THE FIELD Cytokine-induced apoptosis inhibitor 1 (CIAPIN1) is a newly identified cytokine-induced apoptosis inhibitor, which has roles in cell division and angiogenesis. Owing to its prognostic value for human tumors and involvement in cancer progression and tumor cell resistance to anticancer agents, CIAPIN1 has been proposed as an attractive target for new anticancer interventions. AREAS COVERED IN THIS REVIEW We define CIAPIN1's potential function as a new therapeutic target for anticancer interventions and this review covers all related literature on CIAPIN1 in cancer from the past 5 years WHAT THE READER WILL GAIN Several preclinical studies have demonstrated that CIAPIN1 is associated with chemotherapy resistance, increased tumor recurrence and shorter patient survival in different human tumor models, making anti-CIAPIN1 therapy an attractive cancer treatment strategy. Recent studies also suggest that CIAPIN1 is expressed at low levels in some types of malignant tumors and that its overexpression may inhibit their proliferation or tumorigenesis. TAKE HOME MESSAGE Considering that the exact expression and function of CIAPIN1 are still not well characterized and understood, better knowledge of CIAPIN1 in normal versus tumor tissues will be instrumental for the design of optimal strategies to selectively disrupt CIAPIN1 in cancer.
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Affiliation(s)
- Xiaohua Li
- The Fourth Military Medical University, State Key Laboratory of Cancer Biology & Xijing Hospital of Digestive Diseases, 17 Changle Western Road, Xi'an, 710032, China
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Meng Y, He L, Guo X, Tang S, Zhao X, Du R, Jin J, Bi Q, Li H, Nie Y, Liu J, Fan D. Gankyrin promotes the proliferation of human pancreatic cancer. Cancer Lett 2010; 297:9-17. [PMID: 20483533 DOI: 10.1016/j.canlet.2010.04.019] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2010] [Revised: 04/12/2010] [Accepted: 04/22/2010] [Indexed: 12/21/2022]
Abstract
Previous studies in our laboratory have suggested that gankyrin expression is correlated with a malignant phenotype in colorectal cancer. Here, we investigated the possible role of gankyrin in pancreatic carcinogenesis. Gankyrin expression was significantly increased in pancreatic cancer compared to non-cancerous tissues. This expression significantly enhanced cancer cell proliferation and growth in vitro and in vivo. Suppression of gankyrin downregulated cyclin A, cyclin D1, cyclin E, CDK2, CDK4, PCNA and p-Rb but upregulated p27, Rb and p53. However, gankyrin overexpression led to opposite results. Thus, gankyrin could enhance pancreatic cancer cell proliferation by promoting cell cycle progression and p53 degradation.
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Affiliation(s)
- Yun Meng
- Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, China
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Zhong C, Han Y, Qiu J, Lu L, Chen Y, Chen J, Hei R, Mi W. A comparison of the proliferative capacity and ultrastructure of proliferative cells from the cochleae of newborn rats of different ages. Int J Pediatr Otorhinolaryngol 2010; 74:192-7. [PMID: 19963281 DOI: 10.1016/j.ijporl.2009.11.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2009] [Revised: 11/07/2009] [Accepted: 11/09/2009] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Recent reports have shown that multipotent stem cells/progenitor cells that are capable of proliferation and regeneration are present in mammalian cochleae. However, progenitor cells have not been isolated from the adult cochlea. We examined the proliferative potential of cells derived from neonatal rats of various ages. The determination of the differences between the proliferative cells from rats of different ages may provide clues to the mechanisms controlling the destiny of these cells. METHODS Proliferative cells were isolated from the cochleae of 1-, 7-, and 14-day-old rats, and the proliferative capacity and ultrastructure of the cells from each age group were assessed using flow cytometry and transmission electron microscopy, respectively. RESULTS During the first two postnatal weeks, the number of proliferative cells gradually fell to zero. This decrease occurred in parallel with the impairment of the proliferative capacity of the cells and the accumulation of proliferative cells in G0/G1. In addition, some of the cells exited the cell cycle by means of gradual maturity and apoptosis. CONCLUSIONS Our study suggests that cochlear proliferative cells are remnants of the progenitor cells that originally gave rise to the sensory epithelium. The disappearance of the cochlear proliferative cells in adult mammalian cochleae may result from their differentiation and/or apoptosis.
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Affiliation(s)
- Cuiping Zhong
- Department of Otolaryngology, Xijing Hospital, Fourth Military Medical University, Changlexilu 15, Xi'an 710032, Shanxi Province, China
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