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Li Q, Fu T, Wei N, Wang Q, Zhang X. Bmi-1 promotes the proliferation, migration and invasion, and inhibits cell apoptosis of human retinoblastoma cells via RKIP. Sci Rep 2024; 14:14544. [PMID: 38914697 PMCID: PMC11196667 DOI: 10.1038/s41598-024-65011-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 06/16/2024] [Indexed: 06/26/2024] Open
Abstract
Retinoblastoma is one of the most common ocular malignancies in children. Bmi-1, a member of the Polycomb group family of transcriptional repressors, is expressed in a variety of tumors. The purpose of our study was to explore the role of Bmi-1 in retinoblastoma. RT-qPCR and western blot were used for calculating the mRNA and protein levels of Bmi-1 and RKIP. MTT, Wound healing and Transwell assays were performed to measure the proliferation, migration and invasion in retinoblastoma cells. Cell apoptosis was detected by flow cytometry. The volume and mass of transplanted tumors were detected in nude mice. Bmi-1 was over expressed, and RKIP was low expressed in retinoblastoma cells. Bmi-1 promoted cell proliferation, migration and invasion and suppressed cell apoptosis of Y79 and SO-RB50 cells. Downregulation of Bmi-1 and overexpression of RKIP inhibited cell proliferation, migration and invasion, and increased cell apoptosis. The functions of Bmi-1 knockdown on retinoblastoma cells were blocked by RKIP knockdown, but promoted by RKIP. Down-regulated Bmi-1 inhibited xenograft tumor growth, and RKIP exacerbated this inhibitory effect. Bmi-1 served as a potential therapeutic target for improving the efficacy of clinical treatment in retinoblastoma. All the findings revealed the functions of Bmi-1/RKIP axis in retinoblastoma tumorigenesis.
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Affiliation(s)
- Qian Li
- Department of Ophthalmology, The Second People's Hospital of Jinan, No. 148, Jingyi Road, Jinan, 250000, Shandong, China
| | - Te Fu
- Department of Ophthalmology, The Second People's Hospital of Jinan, No. 148, Jingyi Road, Jinan, 250000, Shandong, China
| | - Ning Wei
- Department of Ophthalmology, The Second People's Hospital of Jinan, No. 148, Jingyi Road, Jinan, 250000, Shandong, China
| | - Qiaoling Wang
- Department of Ophthalmology, The Second People's Hospital of Jinan, No. 148, Jingyi Road, Jinan, 250000, Shandong, China
| | - Xin Zhang
- Department of Ophthalmology, The Second People's Hospital of Jinan, No. 148, Jingyi Road, Jinan, 250000, Shandong, China.
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Wang R, Zhu F, Gao G, Gong Z, Yin Z, Ren W, Wang X, Liu Y, Wang S, Wu X. B-cell specific Moloney murine leukemia virus insertion site 1 contributes to invasion, metastasis, and poor prognosis in salivary adenoid cystic carcinoma. J Dent Sci 2024; 19:21-31. [PMID: 38303897 PMCID: PMC10829681 DOI: 10.1016/j.jds.2023.06.014] [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] [Received: 05/31/2023] [Revised: 06/13/2023] [Indexed: 02/03/2024] Open
Abstract
Background/purpose Upregulation of B-cell specific Moloney murine leukemia virus insertion site 1 (BMI-1) has been involved in the invasion, metastasis, and poor prognosis of many cancers. The aim of this study was to evaluate the levels and clinical significance of BMI-1 in saliva of patients with salivary adenoid cystic carcinoma (SACC), and to analyze biological function and mechanism of BMI-1 in the invasion and metastasis of SACC. Materials and methods The levels of BMI-1 in saliva and tumor tissues of SACC patients were determined. The correlation of salivary BMI-1 levels with clinicopathological parameters and clinical outcomes in patients with SACC was analyzed. Additionally, the effects of BMI-1 on wound-healing, transwell invasion, and epithelial-mesenchymal transition (EMT)-related protein expression in vitro as well as on tumorigenicity and experimental lung metastasis in vivo were investigated through exogenous overexpression and silencing of BMI-1 in SACC cells. Results BMI-1 levels increased in saliva and tumor tissues in SACC patients with invasion or metastasis. High salivary BMI-1 levels were correlated with poor TNM stage, poor overall survival, and disease-free survival. Exogenous expression of BMI-1 in SACC-83 promoted its migration and invasion, while silencing BMI-1 in SACC-LM inhibited its migration and invasion in vitro and suppressed tumorigenesis and lung metastasis in vivo. Furthermore, BMI-1 regulated the expression of EMT-related proteins in SACC. Conclusion Our study shows that BMI-1 can serve as a valuable biomarker to identify tumor invasion and metastasis in SACC, predict its prognosis, and act as a promising therapeutic target for SACC.
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Affiliation(s)
- Rongyan Wang
- Department of Stomatology, Affiliated Children's Hospital of Jiangnan University, Wuxi, China
| | - Fangyong Zhu
- Department of Stomatology, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Guilin Gao
- Center of Stomatology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Zhongjian Gong
- Department of Stomatology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Zhiguo Yin
- Department of Stomatology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Wei Ren
- Department of Stomatology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Xin Wang
- Department of Stomatology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Yang Liu
- Department of Stomatology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Shigang Wang
- Department of Stomatology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
| | - Xiangbing Wu
- Department of Stomatology, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, China
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Valenti GE, Roveri A, Venerando R, Menichini P, Monti P, Tasso B, Traverso N, Domenicotti C, Marengo B. PTC596-Induced BMI-1 Inhibition Fights Neuroblastoma Multidrug Resistance by Inducing Ferroptosis. Antioxidants (Basel) 2023; 13:3. [PMID: 38275623 PMCID: PMC10812464 DOI: 10.3390/antiox13010003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 01/27/2024] Open
Abstract
Neuroblastoma (NB) is a paediatric cancer with noteworthy heterogeneity ranging from spontaneous regression to high-risk forms that are characterised by cancer relapse and the acquisition of drug resistance. The most-used anticancer drugs exert their cytotoxic effect by inducing oxidative stress, and long-term therapy has been demonstrated to cause chemoresistance by enhancing the antioxidant response of NB cells. Taking advantage of an in vitro model of multidrug-resistant (MDR) NB cells, characterised by high levels of glutathione (GSH), the overexpression of the oncoprotein BMI-1, and the presence of a mutant P53 protein, we investigated a new potential strategy to fight chemoresistance. Our results show that PTC596, an inhibitor of BMI-1, exerted a high cytotoxic effect on MDR NB cells, while PRIMA-1MET, a compound able to reactivate mutant P53, had no effect on the viability of MDR cells. Furthermore, both PTC596 and PRIMA-1MET markedly reduced the expression of epithelial-mesenchymal transition proteins and limited the clonogenic potential and the cancer stemness of MDR cells. Of particular interest is the observation that PTC596, alone or in combination with PRIMA-1MET and etoposide, significantly reduced GSH levels, increased peroxide production, stimulated lipid peroxidation, and induced ferroptosis. Therefore, these findings suggest that PTC596, by inhibiting BMI-1 and triggering ferroptosis, could be a promising approach to fight chemoresistance.
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Affiliation(s)
- Giulia Elda Valenti
- Department of Experimental Medicine, General Pathology Section, University of Genoa, 16132 Genoa, Italy; (G.E.V.); (N.T.); (B.M.)
| | - Antonella Roveri
- Department of Molecular Medicine, University of Padua, 35128 Padua, Italy; (A.R.); (R.V.)
| | - Rina Venerando
- Department of Molecular Medicine, University of Padua, 35128 Padua, Italy; (A.R.); (R.V.)
| | - Paola Menichini
- Mutagenesis and Cancer Prevention Unit, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy; (P.M.); (P.M.)
| | - Paola Monti
- Mutagenesis and Cancer Prevention Unit, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy; (P.M.); (P.M.)
| | - Bruno Tasso
- Department of Pharmacy, University of Genoa, 16148 Genoa, Italy;
| | - Nicola Traverso
- Department of Experimental Medicine, General Pathology Section, University of Genoa, 16132 Genoa, Italy; (G.E.V.); (N.T.); (B.M.)
| | - Cinzia Domenicotti
- Department of Experimental Medicine, General Pathology Section, University of Genoa, 16132 Genoa, Italy; (G.E.V.); (N.T.); (B.M.)
| | - Barbara Marengo
- Department of Experimental Medicine, General Pathology Section, University of Genoa, 16132 Genoa, Italy; (G.E.V.); (N.T.); (B.M.)
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Moutabian H, Radi UK, Saleman AY, Adil M, Zabibah RS, Chaitanya MNL, Saadh MJ, Jawad MJ, Hazrati E, Bagheri H, Pal RS, Akhavan-Sigari R. MicroRNA-155 and cancer metastasis: Regulation of invasion, migration, and epithelial-to-mesenchymal transition. Pathol Res Pract 2023; 250:154789. [PMID: 37741138 DOI: 10.1016/j.prp.2023.154789] [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: 07/23/2023] [Revised: 08/24/2023] [Accepted: 09/01/2023] [Indexed: 09/25/2023]
Abstract
Among the leading causes of death globally has been cancer. Nearly 90% of all cancer-related fatalities are attributed to metastasis, which is the growing of additional malignant growths out of the original cancer origin. Therefore, a significant clinical need for a deeper comprehension of metastasis exists. Beginning investigations are being made on the function of microRNAs (miRNAs) in the metastatic process. Tiny non-coding RNAs called miRNAs have a crucial part in controlling the spread of cancer. Some miRNAs regulate migration, invasion, colonization, cancer stem cells' properties, the epithelial-mesenchymal transition (EMT), and the microenvironment, among other processes, to either promote or prevent metastasis. One of the most well-conserved and versatile miRNAs, miR-155 is primarily distinguished by overexpression in a variety of illnesses, including malignant tumors. It has been discovered that altered miR-155 expression is connected to a number of physiological and pathological processes, including metastasis. As a result, miR-155-mediated signaling pathways were identified as possible cancer molecular therapy targets. The current research on miR-155, which is important in controlling cancer cells' invasion, and metastasis as well as migration, will be summarized in the current work. The crucial significance of the lncRNA/circRNA-miR-155-mRNA network as a crucial regulator of carcinogenesis and a player in the regulation of signaling pathways or related genes implicated in cancer metastasis will be covered in the final section. These might provide light on the creation of fresh treatment plans for controlling cancer metastasis.
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Affiliation(s)
- Hossein Moutabian
- Radiation Sciences Research Center (RSRC), AJA University of Medical Sciences, Tehran, Iran
| | - Usama Kadem Radi
- College of Pharmacy, National University of Science and Technology, Dhi Qar, Iraq
| | | | | | - Rahman S Zabibah
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Mv N L Chaitanya
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144402, India
| | - Mohamed J Saadh
- Faculty of Pharmacy, Middle East University, Amman 11831, Jordan; Applied Science Research Center. Applied Science Private University, Amman, Jordan
| | | | - Ebrahi Hazrati
- Trauma Research Center, AJA University of Medical Sciences, Tehran, Iran
| | - Hamed Bagheri
- Radiation Sciences Research Center (RSRC), AJA University of Medical Sciences, Tehran, Iran; Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Rashmi Saxena Pal
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab 144402, India
| | - Reza Akhavan-Sigari
- Department of Neurosurgery, University Medical Center, Tuebingen, Germany; Department of Health Care Management and Clinical Research, Collegium Humanum Warsaw Management University, Warsaw, Poland
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5
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Ma N, Zhao S, Yang W, Wang Y. B-cell-specific Moloney murine leukemia virus integration site 1 knockdown impairs adriamycin resistance of gastric cancer cells. Arab J Gastroenterol 2023; 24:168-174. [PMID: 36878814 DOI: 10.1016/j.ajg.2023.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 01/13/2023] [Accepted: 02/23/2023] [Indexed: 03/07/2023]
Abstract
BACKGROUND AND STUDY AIMS The B-cell-specific Moloney murine leukemia virus integration site 1 (BMI-1) is associated with the progression of gastric cancer (GC). However, its role in drug resistance of gastric cancer stem cell (GCSC) remains unclear. This study aimed to explore the biological function of BMI-1 in GC cells and its role in drug resistance of GCSCs. PATIENTS AND METHODS We assessed BMI-1 expression in the GEPIA database and in our collected samples from patients with GC. We silenced BMI-1 using siRNA to study the cell proliferation and migration of GC cells. We also used Hoechst 33342 staining to verify the effect of adriamycin (ADR) on side population (SP) cells, and measured the effects of BMI-1 on the expression of N-cadherin, E-cadherin, and drug-resistance-related proteins (multidrug resistance mutation 1 and lung resistance-related protein). Finally, we analyzed BMI-1-related proteins uing the STRING and GEPIA databases. RESULTS BMI-1 mRNA was upregulated in GC tissues and cell lines, especially in MKN-45 and HGC-27 cells. Silencing BMI-1 reduced the proliferation and migration of GC cells. Knocking down BMI-1 significantly decreased epithelial-mesenchymal transition progression, expression levels of drug-resistant proteins, and the number of SP cells in ADR-treated GC cells. Bioinformatics analysis showed that EZH2, CBX8, CBX4, and SUZ12 were positively correlated with BMI-1 in GC tissues. CONCLUSION Our study demonstrates that BMI-1 affects the cellular activity, proliferation, migration, and invasion of GC cells. Silencing the BMI-1 gene significantly reduces the number of SP cells and the expression of drug-resistant proteins in ADR-treated GC cells. We speculate that inhibition of BMI-1 increases the drug resistance of GC cells by affecting GCSCs, and that EZH2, CBX8, CBX4, and SUZ12 may participate in BMI-1-induced enhancement of GCSC-like phenotype and viability.
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Affiliation(s)
- Ning Ma
- Department of General Surgery Ⅱ, the First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan Province, China.
| | - Sihui Zhao
- Department of General Surgery Ⅱ, the First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan Province, China
| | - Wei Yang
- Department of General Surgery Ⅱ, the First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan Province, China
| | - Yongfang Wang
- Department of General Surgery Ⅱ, the First People's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan Province, China
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6
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Guo Y, Zhang L, Ma Q. A novel association between Bmi-1 protein expression and the SUVmax obtained by 18F-FDG PET/CT in patients with gastric adenocarcinoma. Open Life Sci 2022; 17:1617-1628. [PMID: 36561502 PMCID: PMC9743198 DOI: 10.1515/biol-2022-0087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 03/11/2022] [Accepted: 03/29/2022] [Indexed: 12/13/2022] Open
Abstract
This study aimed to examine B-cell-specific Moloney murine leukemia virus integration site 1 (Bmi-1) in gastric adenocarcinoma (GAC) and its association with the maximal standard uptake value (SUVmax) of preoperative fluorine-18-fludeoosyglucose positron emission tomography/computed tomography (18F-FDG PET/CT). Clinicopathological data were retrospectively collected from 60 primary GAC patients. The Bmi-1 protein expression in GAC and adjacent noncancerous tissues was examined by immunohistochemistry and western blot analysis. Pearson's correlation analysis was conducted to assess the correlation between Bmi-1 expression and the SUVmax. The Bmi-1 protein levels were significantly greater in GAC versus noncancerous tissues, and higher Bmi-1 was significantly correlated with a lower degree of tumor differentiation, higher tumor stages, more lymph node metastasis, and depth of invasion. The SUVmax value was significantly correlated with the T stage, N stage, and clinical stage, but not with age, gender, tumor size, histological differentiation degree, or Lauren classification. Moreover, a significant positive correlation between Bmi-1 and SUVmax was observed in GAC tissues. In conclusion, our findings demonstrate a novel correlation between Bmi-1 and preoperative SUVmax in GAC patients who did not receive radiotherapy, chemotherapy, or targeted treatment before surgery, and both are positively correlated with unfavorable prognostic factors and a higher grade of malignancy.
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Affiliation(s)
- Ying Guo
- Department of Nephrology, China-Japan Union Hospital, Jilin University, 126 Xiantai St. Changchun, Jilin 130033, China
| | - Li Zhang
- Department of Neurology, China-Japan Union Hospital, Jilin University, 126 Xiantai St. Changchun, Jilin 130033, China
| | - Qingjie Ma
- Department of Nuclear Medicine, China-Japan Union Hospital, Jilin University, 126 Xiantai St., Changchun, Jilin 130033, China
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7
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Zeng X, Xiao J, Bai X, Liu Y, Zhang M, Liu J, Lin Z, Zhang Z. Research progress on the circRNA/lncRNA-miRNA-mRNA axis in gastric cancer. Pathol Res Pract 2022; 238:154030. [PMID: 36116329 DOI: 10.1016/j.prp.2022.154030] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 07/14/2022] [Accepted: 07/16/2022] [Indexed: 01/19/2023]
Abstract
Gastric cancer is one of the most common malignant tumours worldwide. Genetic and epigenetic alterations are key factors in gastric carcinogenesis and drug resistance to chemotherapy. Competing endogenous RNA (ceRNA) regulation models have defined circRNA/lncRNA as miRNA sponges that indirectly regulate miRNA downstream target genes. The ceRNA regulatory network is related to the malignant biological behaviour of gastric cancer. The circRNA/lncRNA-miRNA-mRNA axis may be a marker for the early diagnosis and prognosis of gastric cancer and a potential therapeutic target for gastric cancer. Exosomal ncRNAs play an important role in gastric cancer and are expected to be ideal biomarkers for the diagnosis, prognosis, and treatment of gastric cancer. This review summarizes the specific ceRNA regulatory network (circRNA/lncRNA-miRNA-mRNA) discovered in gastric cancer in recent years, which may provide new ideas or strategies for early clinical diagnosis, further development, and application.
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Affiliation(s)
- Xuemei Zeng
- Cancer Research Institute of Hengyang Medical School, University of South China; Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hengyang, Hunan 421001, China
| | - Juan Xiao
- Department of Otorhinolaryngology, The Second Affiliated Hospital, Hengyang Medical School,University of South China, Hengyang 421001, China
| | - Xue Bai
- Cancer Research Institute of Hengyang Medical School, University of South China; Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hengyang, Hunan 421001, China
| | - Yiwen Liu
- Cancer Research Institute of Hengyang Medical School, University of South China; Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hengyang, Hunan 421001, China
| | - Meilan Zhang
- Cancer Research Institute of Hengyang Medical School, University of South China; Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hengyang, Hunan 421001, China
| | - Jiangrong Liu
- Cancer Research Institute of Hengyang Medical School, University of South China; Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hengyang, Hunan 421001, China
| | - Zixuan Lin
- Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Zhiwei Zhang
- Cancer Research Institute of Hengyang Medical School, University of South China; Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Hengyang, Hunan 421001, China.
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Xu J, Li L, Shi P, Cui H, Yang L. The Crucial Roles of Bmi-1 in Cancer: Implications in Pathogenesis, Metastasis, Drug Resistance, and Targeted Therapies. Int J Mol Sci 2022; 23:ijms23158231. [PMID: 35897796 PMCID: PMC9367737 DOI: 10.3390/ijms23158231] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/22/2022] [Accepted: 07/23/2022] [Indexed: 12/01/2022] Open
Abstract
B-cell-specific Moloney murine leukemia virus integration region 1 (Bmi-1, also known as RNF51 or PCGF4) is one of the important members of the PcG gene family, and is involved in regulating cell proliferation, differentiation and senescence, and maintaining the self-renewal of stem cells. Many studies in recent years have emphasized the role of Bmi-1 in the occurrence and development of tumors. In fact, Bmi-1 has multiple functions in cancer biology and is closely related to many classical molecules, including Akt, c-MYC, Pten, etc. This review summarizes the regulatory mechanisms of Bmi-1 in multiple pathways, and the interaction of Bmi-1 with noncoding RNAs. In particular, we focus on the pathological processes of Bmi-1 in cancer, and explore the clinical relevance of Bmi-1 in cancer biomarkers and prognosis, as well as its implications for chemoresistance and radioresistance. In conclusion, we summarize the role of Bmi-1 in tumor progression, reveal the pathophysiological process and molecular mechanism of Bmi-1 in tumors, and provide useful information for tumor diagnosis, treatment, and prognosis.
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Affiliation(s)
- Jie Xu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China; (J.X.); (L.L.); (P.S.)
- Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Lin Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China; (J.X.); (L.L.); (P.S.)
| | - Pengfei Shi
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China; (J.X.); (L.L.); (P.S.)
- Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China; (J.X.); (L.L.); (P.S.)
- Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
- Correspondence: (H.C.); (L.Y.)
| | - Liqun Yang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400716, China; (J.X.); (L.L.); (P.S.)
- Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
- Correspondence: (H.C.); (L.Y.)
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Guo Y, Zhou G, Ma Q, Zhang L, Chen J. Bmi-1 directly upregulates glucose transporter 1 in human gastric adenocarcinoma. Open Life Sci 2022; 17:261-271. [PMID: 35415241 PMCID: PMC8951214 DOI: 10.1515/biol-2022-0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 11/22/2021] [Accepted: 01/03/2022] [Indexed: 12/24/2022] Open
Abstract
This study aimed to investigate whether and how Moloney murine leukemia virus integration site 1 (Bmi-1) plays a role in the regulation of glucose transporter 1 (GLUT1) in gastric adenocarcinoma (GAC). GAC and matched noncancerous tissues were obtained from GAC patients who underwent surgical treatment at the China-Japan Union Hospital, Jilin University (Changchun, Jilin, China). The human GAC cell line AGS and the gastric epithelial cell line GES-1 were used for in vitro studies. BALB/c nude mice were used for in vivo studies. The Bmi-1 and GLUT1 protein levels were significantly greater in human tissues from GAC patients and AGS cells in comparison with controls. Silencing of Bmi-1 resulted in significant decrease in glucose uptake, lactate levels, and GLUT1 expression. In vivo18F-deoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) imaging studies indicated that the nude mice bearing xenografts of AGS cells treated with Bmi-1-specific small interfering RNA (siRNA) had a significantly lower maximum standardized uptake value (SUVmax) in comparison with the control mice. Thus, Bmi-1 directly upregulates GLUT1 gene expression, through which it is involved in enhancing glucose uptake in GAC. The results also provide scientific evidence for 18F-FDG PET/CT imaging to evaluate Bmi-1 and glucose uptake in GAC.
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Affiliation(s)
- Ying Guo
- Department of Nephrology, China-Japan Union Hospital, Jilin University, Changchun , Jilin 130033 , China
| | - Guangyu Zhou
- Department of Nephrology, China-Japan Union Hospital, Jilin University, Changchun , Jilin 130033 , China
| | - Qingjie Ma
- Department of Nuclear Medicine, China-Japan Union Hospital, Jilin University , 126 Xiantai St., Changchun , Jilin 130033 , China
| | - Li Zhang
- Department of Neurology, China-Japan Union Hospital, Jilin University , 126 Xiantai St., Changchun , Jilin 130033 , China
| | - Jiwei Chen
- Department of Nephrology, China-Japan Union Hospital, Jilin University, Changchun , Jilin 130033 , China
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Li Y, Tian Z, Tan Y, Lian G, Chen S, Chen S, Li J, Li X, Huang K, Chen Y. Bmi-1-induced miR-27a and miR-155 promote tumor metastasis and chemoresistance by targeting RKIP in gastric cancer. Mol Cancer 2020; 19:109. [PMID: 32580736 PMCID: PMC7315508 DOI: 10.1186/s12943-020-01229-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 06/17/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND We previously reported an inverse relationship between B cell-specific Moloney murine leukemia virus integration site 1 (Bmi-1) and Raf kinase inhibitory protein (RKIP), which is associated with the prognosis of gastric cancer (GC). In this study, we further explored the microRNA (miRNA) regulatory mechanism between Bmi-1 and RKIP. METHODS Microarray analysis was first carried out to identify miRNA profiles that were differentially expressed in cells overexpressing Bmi-1. Then, miRNAs that could regulate RKIP were identified. Quantitative real-time PCR (qRT-PCR) and Western blotting were performed to measure the expression of Bmi-1, miR-155, miR-27a and RKIP. RKIP was confirmed as a target of miR-27a and miR-155 through luciferase reporter assays, qRT-PCR and Western blotting. The effects of the Bmi-1/miR-27a/RKIP and Bmi-1/miR-155/RKIP axes on tumor growth, proliferation, migration, invasion, colony-formation ability, metastasis and chemoresistance were investigated both in vitro and in vivo. RESULTS The downregulation of RKIP by Bmi-1 occurred at the protein but not mRNA level. This indicates probable posttranscriptional regulation. miRNA expression profiles of cells with ectopic expression of Bmi-1 were analyzed and compared to those of control cells by microarray analysis. A total of 51 upregulated and 72 downregulated miRNAs were identified. Based on publicly available algorithms, miR-27a and miR-155 were predicted, selected and demonstrated to target RKIP. Bmi-1, miR-27a and miR-155 are elevated in human GC and associated with poor prognosis of GC, while RKIP is expressed at lower levels in GC and correlated with good prognosis. Then, in vitro tests shown that in addition to regulating RKIP expression via miR-27a and miR-155, Bmi-1 was also able to regulate the migration, invasion, proliferation, colony-formation ability and chemosensitivity of GC cells through the same pathway. Finally, the in vivo test showed similar results, whereby the knockdown of the Bmi-1 gene led to the inhibition of tumor growth, metastasis and chemoresistance through miR-27a and miR-155. CONCLUSIONS Bmi-1 was proven to induce the expression of miR-27a and miR-155 and thus promote tumor metastasis and chemoresistance by targeting RKIP in GC. Overall, miR-27a and miR-155 might be promising targets for the screening, diagnosis, prognosis, treatment and disease monitoring of GC.
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Affiliation(s)
- Yaqing Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
- Department of Gastroenterology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
| | - Zhenfeng Tian
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
- Department of Gastroenterology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
| | - Ying Tan
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
- Department of Gastroenterology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
| | - Guoda Lian
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
- Department of Gastroenterology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
| | - Shangxiang Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
- Department of Gastroenterology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
| | - Shaojie Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
- Department of Gastroenterology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
| | - Jiajia Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
- Department of Nephrology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
| | - Xuanna Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
- Department of Gastroenterology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China
| | - Kaihong Huang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China.
- Department of Gastroenterology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China.
| | - Yinting Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China.
- Department of Gastroenterology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P. R. China.
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11
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Liu Y, Xu J, Jiang M, Ni L, Ling Y. CircRNA DONSON contributes to cisplatin resistance in gastric cancer cells by regulating miR-802/BMI1 axis. Cancer Cell Int 2020; 20:261. [PMID: 32581651 PMCID: PMC7310092 DOI: 10.1186/s12935-020-01358-w] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 06/16/2020] [Indexed: 12/12/2022] Open
Abstract
Background Circular RNA downstream neighbor of SON (circDONSON) has been revealed to promote gastric cancer (GC) growth and invasion, while the role and molecular mechanism underlying circDONSON in GC cisplatin (DDP) resistance remain unclear. Methods Levels of circDONSON, microRNA (miR)-802, and B lymphoma Mo-MLV insertion region 1 (BMI1) mRNA were detected using quantitative real-time polymerase chain reaction. Cell viability and apoptosis were measured by cell counting kit-8 assay, colony formation assay and flow cytometry, respectively. Protein levels of BMI1, Cyclin D1, p27, Caspase-3 Cleavage and Caspase-9 Cleavage were determined by western blot. The interaction between miR-802 and circDONSON or BMI1 was confirmed by dual-luciferase reporter assay. In vivo experiments were conducted via the murine xenograft model. Results CircDONSON was elevated in GC tissues and cell lines, especially in DDP-resistant GC tissues and cells. Knockdown of circDONSON sensitized GC cells to DDP by inhibiting cell viability and promoting cell apoptosis in vitro. Further mechanism-related investigations suggested that circDONSON functioned as “sponge” by competing for miR-802 binding to modulate its target BMI1. Silencing miR-802 reversed the inhibition of DDP-resistance in GC cells induced by circDONSON down-regulation. Besides, miR-802 alleviated DDP resistance in GC cells by targeting BMI1. Functionally, circDONSON knockdown enhanced the cytotoxicity of DDP in GC in vivo. Conclusion Our findings demonstrated circDONSON promoted cisplatin resistance in gastric cancer cells by regulating miR-802/BMI1 axis, shedding light on the development of a novel therapeutic strategy to overcome chemoresistance in gastric cancer patients.
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Affiliation(s)
- Yong Liu
- Department of Oncology, The Third Affiliated Hospital of Soochow University (Changzhou Tumor Hospital Affiliated to Soochow University), No. 68, Honghe Road, Changzhou, 213000 Jiangsu China
| | - Jianzhong Xu
- Department of Oncology, The Third Affiliated Hospital of Soochow University (Changzhou Tumor Hospital Affiliated to Soochow University), No. 68, Honghe Road, Changzhou, 213000 Jiangsu China
| | - Min Jiang
- Department of Oncology, The Third Affiliated Hospital of Soochow University (Changzhou Tumor Hospital Affiliated to Soochow University), No. 68, Honghe Road, Changzhou, 213000 Jiangsu China
| | - Lingna Ni
- Department of Oncology, The Third Affiliated Hospital of Soochow University (Changzhou Tumor Hospital Affiliated to Soochow University), No. 68, Honghe Road, Changzhou, 213000 Jiangsu China
| | - Yang Ling
- Department of Oncology, The Third Affiliated Hospital of Soochow University (Changzhou Tumor Hospital Affiliated to Soochow University), No. 68, Honghe Road, Changzhou, 213000 Jiangsu China
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12
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Yu J, Shen J, Qiao X, Cao L, Yang Z, Ye H, Xi C, Zhou Q, Wang P, Gong Z. SNHG20/miR-140-5p/NDRG3 axis contributes to 5-fluorouracil resistance in gastric cancer. Oncol Lett 2019; 18:1337-1343. [PMID: 31423195 PMCID: PMC6607387 DOI: 10.3892/ol.2019.10439] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 04/29/2019] [Indexed: 01/18/2023] Open
Abstract
5-fluorouracil (5-FU)-based chemotherapy is the first line treatment for advanced gastric cancer. However, the effectiveness of 5-FU is limited by drug resistance. The N-myc downstream-regulated gene, family member 3 (NDRG3) is a member of the NDRG family and has been implicated in numerous types of cancer. However, the role of NDRG3 in gastric cancer remains unclear. In the present study, NDRG3 mRNA expression in gastric cancer and adjacent normal tissues was analyzed using the Gene Expression Profiling Interactive Analysis web tool. NDRG3 expression was silenced using short hairpin RNAs to examine the effect of NDRG3 on the growth of gastric cancer cells. Potential regulators of NDRG3 were identified using the TargetScan and MicroRNA tools and verified by a luciferase assay and reverse transcription-quantitative PCR analysis. The current study demonstrated that NDRG3 was upregulated in gastric cancer specimens and promoted cell proliferation in gastric cancer cell lines. Furthermore, the present study revealed that the small nucleolar RNA host gene 20 (SNHG20)/microRNA (miR)-140-5p signaling pathway may regulate the expression of NDRG3. SNHG20 was revealed to be involved in mediating resistance to 5-FU in gastric cancer cell lines via NDRG3. In conclusion, the results of the present study suggest that the SNHG20/miR-140-5p/NDRG3 axis may be involved in mediating resistance to 5-FU in gastric cancer.
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Affiliation(s)
- Jie Yu
- Department of Colorectal and Anal Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434020, P.R. China
| | - Jie Shen
- Department of Colorectal and Anal Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434020, P.R. China
| | - Xu Qiao
- Department of Digestive Endoscopy, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434020, P.R. China
| | - Longlei Cao
- Department of Colorectal and Anal Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434020, P.R. China
| | - Zhangling Yang
- Department of Colorectal and Anal Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434020, P.R. China
| | - Hui Ye
- Department of Colorectal and Anal Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434020, P.R. China
| | - Changlei Xi
- Department of Colorectal and Anal Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434020, P.R. China
| | - Qichang Zhou
- Department of Colorectal and Anal Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434020, P.R. China
| | - Peiyun Wang
- Department of Colorectal and Anal Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434020, P.R. China
| | - Zhilin Gong
- Department of Colorectal and Anal Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei 434020, P.R. China
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13
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Chen S, Lian G, Li J, Zhang Q, Zeng L, Yang K, Huang C, Li Y, Chen Y, Huang K. Tumor-driven like macrophages induced by conditioned media from pancreatic ductal adenocarcinoma promote tumor metastasis via secreting IL-8. Cancer Med 2018; 7:5679-5690. [PMID: 30311406 PMCID: PMC6246928 DOI: 10.1002/cam4.1824] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 09/15/2018] [Accepted: 09/18/2018] [Indexed: 12/16/2022] Open
Abstract
Tumor-associated macrophages (TAMs) are abundant population of inflammatory cells which play an essential role in remodeling tumor microenvironment and tumor progression. Previously, we found the high density of TAMs was correlated with lymph node metastasis and poor prognosis in pancreatic ductal adenocarcinoma (PDAC). Therefore, this study was designed to investigate the mechanisms of interaction between TAMs and PDAC. THP-1 monocytes were the exposure to conditioned media (CM) produced by PDAC cells; then, monocyte recruitment and macrophage differentiation were assessed. CM from PDAC attracted and polarized THP-1 monocytes to tumor-driven like macrophages. mRNA expression cytokine profiling and ELISA identified the IL-8 secretion was increasing in tumor-driven like macrophages, and STAT3 pathway was involved. Addition of exogenous recombinant human IL-8 promoted PDAC cells motility in vitro and metastasis in vivo via upregulating Twist expression, which mediated epithelial-mesenchymal transition in cancer cells. What is more, IL-8 expression level in tumor stroma by immunohistochemical analysis was related to lymph node metastasis, the number of tumor CD68 but not CD163 positive macrophages and patient outcome. Taken together, these findings shed light on the important interplay between cancer cells and TAMs in tumor microenvironment and suggested that IL-8 signaling might be a potential therapeutic target for PDAC.
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Affiliation(s)
- Shao‐jie Chen
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Guo‐da Lian
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Jia‐jia Li
- Department of NephrologySun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Qiu‐bo Zhang
- Department of GastroenterologyLihuili Hospital of Ningbo Medical CenterNingboChina
| | - Lin‐juan Zeng
- Department of OncologyThe Fifth Affiliated Hospital of Sun Yat‐sen UniversityZhuhaiChina
| | - Ke‐ge Yang
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Chu‐mei Huang
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Ya‐qing Li
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Yin‐ting Chen
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
| | - Kai‐hong Huang
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene RegulationSun Yat‐sen Memorial Hospital, Sun Yat‐sen UniversityGuangzhouChina
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Long non-coding RNA NEAT1 decreases the chemosensitivity of gastric cancer cells via regulating P-glycoprotein expression. Mol Cell Toxicol 2017. [DOI: 10.1007/s13273-017-0035-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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