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Wang L, Ji X, Mao C, Yu R. BAY-885, a mitogen-activated protein kinase kinase 5 inhibitor, induces apoptosis by regulating the endoplasmic reticulum stress/Mcl-1/Bim pathway in breast cancer cells. Bioengineered 2022; 13:12888-12898. [PMID: 35609325 PMCID: PMC9275924 DOI: 10.1080/21655979.2022.2078557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The mitogen-activated protein kinase kinase 5 (MEK5)/extracellular signal-regulated kinase 5 (ERK5) axis has been reported to promote tumorigenesis in breast cancer (BC). Therefore, targeting the MEK5/ERK5 axis is a potential strategy against BC. BAY-885 is a novel inhibitor of ERK5; however, to date, its anti-tumor effects in BC have not been investigated. This study aimed to assess the anti-tumor effects of BAY-885 in BC and identify its underlying mechanisms of action. Unlike other ERK5 inhibitors, which frequently failed to mimic ERK5 genetic ablation phenotypes, the BAY-885 treatment effectively recapitulated ERK5 depletion effects in BC cells. Results revealed that BAY-885 affected the viability and induced apoptosis in BC cells. Moreover, the BAY-885-mediated downregulation of myeloid cell leukemia-1 (Mcl-1) and upregulation of Bim were dependent on ERK5 inhibition. Furthermore, BAY-885 triggered activation of endoplasmic reticulum (ER) stress, which further led to the upregulation of Bim and downregulation of Mcl-1. ER stress was induced in an ERK5 inhibition-dependent manner. These findings suggested that BAY-885 induced apoptosis in BC cells via ER stress/Mcl-1/Bim axis, suggesting that BAY-885 may serve as a therapeutic agent for BC.
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Affiliation(s)
- Lei Wang
- Department of Thyroid and Breast Surgery, Ningbo Medical Centre, the Affiliated Lihuili Hospital of Ningbo University, Ningbo
| | - Xiaochun Ji
- Department of Thyroid and Breast Surgery, Ningbo Medical Centre, the Affiliated Lihuili Hospital of Ningbo University, Ningbo
| | - Chenxiao Mao
- Department of Electronic Commerce, Zhejiang Fashion Institute of Technology, Ningbo
| | - Rui Yu
- Department of Biochemistry, School of Medicine, Ningbo University, Ningbo
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Ouyang Q, Cui Y, Yang S, Wei W, Zhang M, Zeng J, Qu F. lncRNA MT1JP Suppresses Biological Activities of Breast Cancer Cells in vitro and in vivo by Regulating the miRNA-214/RUNX3 Axis. Onco Targets Ther 2020; 13:5033-5046. [PMID: 32581560 PMCID: PMC7280253 DOI: 10.2147/ott.s241503] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 04/01/2020] [Indexed: 12/12/2022] Open
Abstract
Introduction The purpose of our research was to evaluate MT1JP in breast cancer. Material and Methods For clinical purpose, tissues were collected, and a correlation analysis ofMT1JP and miRNA-214 gene expressions was conducted. Using an in vitro study, MDA-MB-231 and MCF-7 cell lines were used as research objects in our research. Colony, flow cytometry, TUNEL, transwell, adhesion and wound healing assay were used to discuss the biological activities of the cells. In an in vivo study, tumor weight and volume were measured, and cell apoptosis was measured by TUNEL assay. The relative mechanism's proteins were evaluated by Western blotting or immunohistochemistry assay. Results Compared with adjacent tissues, MT1JP and miRNA-214 gene expressions were significantly different (P<0.001, respectively). By in vitro and in vivo studies, the biological activities of the cells were significantly decreased in MDA-MB-231 and MCF-7 cell lines with MT1JP overexpression. The relative mechanism was correlated with miRNA-214/RUNX3 axis. Conclusion The overexpression of MT1JP suppresses the biological activities of breast cancer cells by regulation miRNA-214/RUNX3 axis in vitro and vivo study.
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Affiliation(s)
- Qianwen Ouyang
- Department of Breast Surgery, The Third Hospital of Nanchang, Jiangxi, China Jiangxi Province Key Laboratory for Breast Diseases, Nanchang, Jiangxi 330009, People's Republic of China
| | - Yanru Cui
- Department of Physiology, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, People's Republic of China
| | - Shixin Yang
- Department of Breast Surgery, The Third Hospital of Nanchang, Jiangxi, China Jiangxi Province Key Laboratory for Breast Diseases, Nanchang, Jiangxi 330009, People's Republic of China
| | - Wensong Wei
- Department of Breast Surgery, The Third Hospital of Nanchang, Jiangxi, China Jiangxi Province Key Laboratory for Breast Diseases, Nanchang, Jiangxi 330009, People's Republic of China
| | - Mingyue Zhang
- Department of Pharmacology, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, People's Republic of China
| | - Jie Zeng
- Department of Breast Surgery, The Third Hospital of Nanchang, Jiangxi, China Jiangxi Province Key Laboratory for Breast Diseases, Nanchang, Jiangxi 330009, People's Republic of China
| | - Fei Qu
- Department of Pharmacology, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, People's Republic of China
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Ma J, Yan H, Zhang J, Tan Y, Gu W. Long-Chain Non-Coding RNA (lncRNA) MT1JP Suppresses Biological Activities of Lung Cancer by Regulating miRNA-423-3p/Bim Axis. Med Sci Monit 2019; 25:5114-5126. [PMID: 31342947 PMCID: PMC6637816 DOI: 10.12659/msm.914387] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
<strong>BACKGROUND</strong> This study aimed to explain the effects and mechanism of MT1JP in lung cancer development and treatment. <strong>MATERIAL AND METHODS</strong> Thirty non-small cell lung cancer (NSCLC) (stages I-II, 17 cases; stages III-IV, 13 cases) and adjacent normal tissues were obtained. MT1JP and miRNA-423-3p levels were assessed by <i>in situ</i> hybridization and Bim protein expression by immunohistochemistry, and the correlations determined were analyzed. Cell proliferation was determined using MTT and colony formation assay, and cell apoptosis was measured using flow cytometry. A549 cell invasion and migration were assessed by Transwell migration and scratch wound healing assays. Relative mRNA and protein expressions were assessed using real-time polymerase chain reaction and western blotting. Correlations between miRNA-423-3p and Bim protein were investigated using luciferase activity assay, and Bim protein expression was evaluated using western blotting. <strong>RESULTS</strong> MT1JP, miRNA-423-3p, and Bim expressions in NSCLC cancer tissues and those in adjacent cancer tissues were significantly different (<i>P</i><0.01 or <i>P</i><0.001) with increasing stage. Compared with those in the normal control (NC) group, cell proliferation rates were significantly suppressed (<i>P</i><0.01 or <i>P</i><0.001) and cell apoptosis rates significantly increased (<i>P</i><0.01 or <i>P</i><0.001) in the miRNA inhibitor and lncRNA+miRNA inhibitor groups. Invasion cell numbers and wound healing rates were also significantly inhibited in the miRNA inhibitor and lncRNA+miRNA inhibitor groups (<i>P</i><0.01 or <i>P</i><0.001) compared with those in the NC group. <strong>CONCLUSIONS</strong> The lncRNA MT1JP suppresses NSCLC biological activities by regulating the miRNA-423-3p/Bim axis.
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Affiliation(s)
- Jiyong Ma
- Department of Respiration, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
| | - Haijun Yan
- Department of Respiration, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
| | - Jing Zhang
- Department of Respiration, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
| | - Yan Tan
- Department of Respiration, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
| | - Wei Gu
- Department of Respiration, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
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Wang Y, Tan M, Li H, Li H, Sun Y. Inactivation of SAG or ROC1 E3 Ligase Inhibits Growth and Survival of Renal Cell Carcinoma Cells: Effect of BIM. Transl Oncol 2019; 12:810-818. [PMID: 30954776 PMCID: PMC6451688 DOI: 10.1016/j.tranon.2019.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/13/2019] [Accepted: 03/15/2019] [Indexed: 01/28/2023] Open
Abstract
SAG (Sensitive to Apoptosis Gene) and ROC1 (Regulator of Cullin-1) are two family members of the RING component of CRL (Cullin RING ligase). Both members are essential for growth and survival of several types of human cancer cells; their role in renal cell carcinoma (RCC), however, remains elusive. Here we reported that compared to adjacent normal tissues, both SAG and ROC1 are overexpressed in RCC, which is positively correlated with poor patient survival, particularly for SAG. Depletion of SAG or ROC1 inhibited growth and survival of RCC cells by inducing G2/M arrest, senescence, and apoptosis likely due to accumulation of WEE1, p21, p27, NOXA, and BIM. Interestingly, simultaneous BIM knockdown in RCC cells partially rescues growth suppression triggered by depletion of SAG, but not ROC1, suggesting a differential role of BIM. Collectively, our study provides the proof-of-concept evidence that RING components of CRL are attractive candidates for targeted therapy of RCC.
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Affiliation(s)
- Yu Wang
- Department of Nephrology, The First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China; Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109, United States
| | - Mingjia Tan
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109, United States
| | - Hua Li
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109, United States
| | - Haomin Li
- Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310029, China
| | - Yi Sun
- Division of Radiation and Cancer Biology, Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109, United States; Institute of Translational Medicine and Cancer Institute of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310029, China.
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Yao Y, Chu H, Wang J, Wang B. Decreased human antigen R expression confers resistance to tyrosine kinase inhibitors in epidermal growth factor receptor-mutant lung cancer by inhibiting Bim expression. Int J Mol Med 2018; 42:2930-2942. [PMID: 30226552 DOI: 10.3892/ijmm.2018.3835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 08/14/2018] [Indexed: 11/06/2022] Open
Abstract
Primary resistance to epidermal growth factor receptor‑tyrosine kinase inhibitors (EGFR‑TKIs) is an obstacle for the treatment of non‑small cell lung cancer (NSCLC); however, the associated mechanisms are not well understood. Studies have reported that Bim expression levels may be associated with the efficacy of EGFR‑TKI treatment in NSCLC patients harboring EGFR mutations. Human antigen R (HuR) regulates the mRNA and protein expression of target genes, including certain B‑cell lymphoma 2 family members. The present study investigated whether HuR mediates resistance to EGFR‑TKIs via the regulation of Bim. The results demonstrated that decreased levels of HuR and Bim protein expression are associated with primary resistance to EGFR‑TKIs and reduced median progression‑free survival in NSCLC patients. In vitro assays also revealed that knockdown of HuR resulted in primary EGFR‑TKI resistance and reduced gefitinib‑induced apoptosis in HCC827 cells by decreasing Bim expression. Furthermore, elevated HuR expression restored gefitinib sensitivity and enhanced gefitinib‑induced apoptosis in H1650 cells by increasing Bim expression. In vivo, it was further demonstrated that overexpression of HuR was able to restore the gefitinib sensitivity of H1650 cells. Therefore, altered HuR/Bim expression is proposed to be a novel mechanism of EGFR‑TKI resistance in NSCLC.
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Affiliation(s)
- Yunfeng Yao
- Institute of Post‑Graduate, The Second Military Medical University, People's Liberation Army, Shanghai 200433, P.R. China
| | - Huili Chu
- Department of Oncology, General Hospital, Jinan Command of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Jun Wang
- Department of Oncology, General Hospital, Jinan Command of The People's Liberation Army, Jinan, Shandong 250031, P.R. China
| | - Baocheng Wang
- Institute of Post‑Graduate, The Second Military Medical University, People's Liberation Army, Shanghai 200433, P.R. China
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