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Goleij P, Pourali G, Raisi A, Ravaei F, Golestan S, Abed A, Razavi ZS, Zarepour F, Taghavi SP, Ahmadi Asouri S, Rafiei M, Mousavi SM, Hamblin MR, Talei S, Sheida A, Mirzaei H. Role of Non-coding RNAs in the Response of Glioblastoma to Temozolomide. Mol Neurobiol 2024:10.1007/s12035-024-04316-z. [PMID: 39023794 DOI: 10.1007/s12035-024-04316-z] [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: 11/27/2023] [Accepted: 06/16/2024] [Indexed: 07/20/2024]
Abstract
Chemotherapy and radiotherapy are widely used in clinical practice across the globe as cancer treatments. Intrinsic or acquired chemoresistance poses a significant problem for medical practitioners and researchers, causing tumor recurrence and metastasis. The most dangerous kind of malignant brain tumor is called glioblastoma multiforme (GBM) that often recurs following surgery. The most often used medication for treating GBM is temozolomide chemotherapy; however, most patients eventually become resistant. Researchers are studying preclinical models that accurately reflect human disease and can be used to speed up drug development to overcome chemoresistance in GBM. Non-coding RNAs (ncRNAs) have been shown to be substantial in regulating tumor development and facilitating treatment resistance in several cancers, such as GBM. In this work, we mentioned the mechanisms of how different ncRNAs (microRNAs, long non-coding RNAs, circular RNAs) can regulate temozolomide chemosensitivity in GBM. We also address the role of these ncRNAs encapsulated inside secreted exosomes.
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Affiliation(s)
- Pouya Goleij
- Department of Genetics, Faculty of Biology, Sana Institute of Higher Education, Sari, Iran
- USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ghazaleh Pourali
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Arash Raisi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Fatemeh Ravaei
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Shahin Golestan
- Department of Ophthalmology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atena Abed
- Department of Medical Biotechnology, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Zahra Sadat Razavi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Fatemeh Zarepour
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Seyed Pouya Taghavi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Sahar Ahmadi Asouri
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Moein Rafiei
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Seyed Mojtaba Mousavi
- Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Michael R Hamblin
- Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, 2028, South Africa
| | - Sahand Talei
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Amirhossein Sheida
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran.
| | - Hamed Mirzaei
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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Wang J, Qu J, Hou Q, Huo X, Zhao X, Chang L, Xu C. Strategies for the Isolation and Identification of Gastric Cancer Stem Cells. Stem Cells Int 2024; 2024:5553852. [PMID: 38882596 PMCID: PMC11178399 DOI: 10.1155/2024/5553852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 04/18/2024] [Accepted: 05/07/2024] [Indexed: 06/18/2024] Open
Abstract
Gastric cancer stem cells (GCSCs) originate from both gastric adult stem cells and bone marrow cells and are conspicuously present within the histological milieu of gastric cancer tissue. GCSCs play pivotal and multifaceted roles in the initiation, progression, and recurrence of gastric cancer. Hence, the characterization of GCSCs not only facilitates precise target identification for prospective therapeutic interventions in gastric cancer but also has significant implications for targeted therapy and the prognosis of gastric cancer. The prevailing techniques for GCSC purification involve their isolation using surface-specific cell markers, such as those identified by flow cytometry and immunomagnetic bead sorting techniques. In addition, in vitro culture and side-population cell sorting are integral methods in this context. This review discusses the surface biomarkers, isolation techniques, and identification methods of GCSCs, as well as their role in the treatment of gastric cancer.
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Affiliation(s)
- Jianhua Wang
- Shaanxi Provincial Key Laboratory of Infection and Immune Diseases Shaanxi Provincial People's Hospital, Xi'an 710068, China
- Second Department of General Surgery Shaanxi Provincial People's Hospital, Xi'an 710068 710068, China
- Department of Graduate School Yan'an University, Yan'an 716009, China
| | - Jie Qu
- Second Department of General Surgery Shaanxi Provincial People's Hospital, Xi'an 710068 710068, China
- Department of Graduate School Yan'an University, Yan'an 716009, China
| | - Qiang Hou
- Second Department of General Surgery Shaanxi Provincial People's Hospital, Xi'an 710068 710068, China
- Department of Graduate School Yan'an University, Yan'an 716009, China
| | - Xueping Huo
- Shaanxi Provincial Key Laboratory of Infection and Immune Diseases Shaanxi Provincial People's Hospital, Xi'an 710068, China
- Shaanxi Engineering Research Center of Cell Immunology Shaanxi Provincial People's Hospital, Xi'an 710068, China
| | - Xiangrong Zhao
- Shaanxi Provincial Key Laboratory of Infection and Immune Diseases Shaanxi Provincial People's Hospital, Xi'an 710068, China
- Shaanxi Engineering Research Center of Cell Immunology Shaanxi Provincial People's Hospital, Xi'an 710068, China
| | - Le Chang
- Shaanxi Provincial Key Laboratory of Infection and Immune Diseases Shaanxi Provincial People's Hospital, Xi'an 710068, China
- Shaanxi Engineering Research Center of Cell Immunology Shaanxi Provincial People's Hospital, Xi'an 710068, China
| | - Cuixiang Xu
- Shaanxi Provincial Key Laboratory of Infection and Immune Diseases Shaanxi Provincial People's Hospital, Xi'an 710068, China
- Shaanxi Engineering Research Center of Cell Immunology Shaanxi Provincial People's Hospital, Xi'an 710068, China
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Sun J, Xiang Q, Ding D, Yan N. USP10 suppresses ABCG2-induced malignant characteristics of doxorubicin-resistant thyroid cancer by inhibiting PI3K/AKT pathway. J Bioenerg Biomembr 2023; 55:457-466. [PMID: 37919637 PMCID: PMC10682060 DOI: 10.1007/s10863-023-09986-3] [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: 05/24/2023] [Accepted: 09/27/2023] [Indexed: 11/04/2023]
Abstract
Doxorubicin (DOX) is the most extensively used drug in the chemotherapy of thyroid cancer (TC). However, the existence of DOX resistance is not conducive to TC treatment. Here, we investigated the role of USP10 in DOX-resistant TC and explored the underlying molecular mechanism. CCK-8 assay was used to measure cell viability in thyroid cancer FTC133 and DOX-resistant FTC133-DOX cells. RT-qPCR and western blot were used to evaluate USP10 expression. Cell migration, invasion, and apoptotic assays were conducted. Western blot was used to detect cellular signaling proteins, EMT-related proteins, and apoptosis-related proteins. We found a lower expression of USP10 in the human TC cell line FTC133 as compared to the normal human thyroid Htori-3 cells. Notably, USP10 expression was further reduced in DOX-resistant (FTC133-DOX) cells compared to the FTC133 cells. FTC133-DOX cells had increased invasion, migration, and EMT properties while less apoptosis by activating the PI3K/AKT pathway. Interestingly, overexpressing USP10 increased the chemosensitivity of FTC133 cells to DOX therapy. Overexpressing USP10 inhibited invasion, migration, and EMT properties of FTC133-DOX cells and promoted apoptosis. Mechanistically, overexpressing USP10 inhibited PI3K/AKT pathway by activating PTEN. Furthermore, overexpressed USP10 controlled all these processes by downregulating ABCG2. This study demonstrates that USP10 could reduce DOX-induced resistance of TC cells to DOX therapy and could suppress TC malignant behavior by inhibiting the PI3K/AKT pathway. Furthermore, USP10 targeted ABCG2 to inhibit all these malignant processes, therefore, either increasing USP10 expression or inhibiting ABCG2 could be used as novel targets for treating DOX-resistant thyroid cancer.
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Affiliation(s)
- Jianwei Sun
- Department of Ultrasound, Fifth Affiliated Hospital of Kunming Medical University, 17 South Goldenlake Road, Gejiu, 661000, China
| | - Qian Xiang
- Department of Endocrinology, Fifth Affiliated Hospital of Kunming Medical University, 17 South Goldenlake Road, Gejiu, 661000, China
| | - Ding Ding
- Department of Ultrasound, Fifth Affiliated Hospital of Kunming Medical University, 17 South Goldenlake Road, Gejiu, 661000, China
| | - Nan Yan
- Department of Ultrasound, Fifth Affiliated Hospital of Kunming Medical University, 17 South Goldenlake Road, Gejiu, 661000, China.
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Zhu T, Hu Z, Wang Z, Ding H, Li R, Wang J, Wang G. microRNA-301b-3p from mesenchymal stem cells-derived extracellular vesicles inhibits TXNIP to promote multidrug resistance of gastric cancer cells. Cell Biol Toxicol 2023; 39:1923-1937. [PMID: 35246762 DOI: 10.1007/s10565-021-09675-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 10/21/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVE MicroRNAs (miRNAs) from mesenchymal stem cells (MSC)-derived extracellular vesicles (MSCs-EVs), including exosomes, are known to participate in different diseases. However, the function of miR-301b-3p from MSCs-EVs on the chemoresistance of gastric cancer (GC) cells remains poorly characterized. Thus, we aim to explore the role of MSCs-EVs-derived miR-301b-3p in multidrug resistance of GC cells. METHODS Cisplatin (DDP)/vincristine (VCR)-resistant and sensitive GC clinical samples were harvested to detect expression of miR-301b-3p and thioredoxin interacting protein (TXNIP). MSCs were respectively transfected with miR-301b-3p oligonucleotides and/or TXNIP plasmids to extract the EVs, which were then co-cultured with multidrug-resistant GC cells. Then, P-glycoprotein (P-gp) and multidrug resistance-associated protein (MRP), IC50, proliferation, migration, and apoptosis of resistant GC cells were determined. The tumor growth was observed in nude mice. Targeting relationship between miR-301b-3p and TXNIP was confirmed. RESULTS miR-301b-3p was upregulated, and TXNIP was downregulated in DDP/VCR-resistant GC tissues and cells. MSC-EVs induced drug resistance, proliferation, and migration and inhibited apoptosis of DDP/VCR-resistant GC cells in vitro, as well as facilitated tumor growth in vivo. Inhibition of miR-301b-3p or upregulation of TXNIP reversed the promoting effect of MSC-EVs on DDP/VCR resistant GC cells to DDP/VCR resistance and malignant behaviors. The effects of MSC-EVs carrying miR-301b-3p inhibition on DDP/VCR-resistant GC cells were reversed by TXNIP downregulation. TXNIP was confirmed as a target gene of miR-301b-3p. CONCLUSION miR-301b-3p from MSCs-EVs inhibits TXNIP to promote multidrug resistance of GC cells, providing a novel insight for chemotherapy in GC.
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Affiliation(s)
- Tianyu Zhu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - Zhihao Hu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - Zhuoyin Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - Hengxuan Ding
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - Ruixin Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - Jingtao Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China
| | - Guojun Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No 1 Eastern Jianshe Road, Zhengzhou, 450052, Henan, China.
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Dong J, Yuan L, Hu C, Cheng X, Qin JJ. Strategies to overcome cancer multidrug resistance (MDR) through targeting P-glycoprotein (ABCB1): An updated review. Pharmacol Ther 2023; 249:108488. [PMID: 37442207 DOI: 10.1016/j.pharmthera.2023.108488] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/30/2023] [Accepted: 07/06/2023] [Indexed: 07/15/2023]
Abstract
The emergence of multidrug resistance (MDR) in malignant tumors is one of the leading threats encountered currently in many chemotherapeutic agents. The overexpression of the ATP-binding cassette (ABC) transporters is involved in MDR. P-glycoprotein (P-gp)/ABCB1 is a member of the ABC transporter family that significantly increases the efflux of various anticancer drugs from tumor cells. Therefore, targeting P-gp with small molecule inhibitors is an effective therapeutic strategy to overcome MDR. Over the past four decades, diverse compounds with P-gp inhibitory activity have been identified to sensitize drug-resistant cells, but none of them has been proven clinically useful to date. Research efforts continue to discover an effective approach for circumventing MDR. This review has provided an overview of the most recent advances (last three years) in various strategies for circumventing MDR mediated by P-gp. It may be helpful for the scientists working in the field of drug discovery to further synthesize and discover new chemical entities/therapeutic modalities with less toxicity and more efficacies to overcome MDR in cancer chemotherapy.
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Affiliation(s)
- Jinyun Dong
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China; Key Laboratory of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang Province, Hangzhou 310022, China.
| | - Li Yuan
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China; Key Laboratory of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang Province, Hangzhou 310022, China
| | - Can Hu
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China; Key Laboratory of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang Province, Hangzhou 310022, China
| | - Xiangdong Cheng
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China; Key Laboratory of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang Province, Hangzhou 310022, China.
| | - Jiang-Jiang Qin
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China; Key Laboratory of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang Province, Hangzhou 310022, China.
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6
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Tang C, Zhang H, Deng WS, Xiong LQ, Zhou LQ. Role of POU1F1 promoting the properties of stemness of gastric carcinoma through ENO1-mediated glycolysis reprogramming. Kaohsiung J Med Sci 2023; 39:904-915. [PMID: 37334727 DOI: 10.1002/kjm2.12720] [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: 09/24/2022] [Revised: 05/05/2023] [Accepted: 05/29/2023] [Indexed: 06/20/2023] Open
Abstract
Cancer stem cells (CSCs), a rare subset of tumor cells, have been recognized as promotive role on tumor initiation and propagation. Among, aerobic glycolysis, widely clarified in multiple tumor cells, is the key for maintaining cancer stemness. Regrettably, it is largely unknown about the connection of cellular metabolic reprogramming and stemness in gastric carcinoma (GC). Two GC parental cells lines PAMC-82 and SNU-16 and their spheroids were obtained to determine the expression status of POU1F1 using quantitative real-time PCR (qRT-PCR) and western blotting analysis, respectively. Gain or loss-of-function assay was employed to assess its biological effects. Sphere formation and transwell assays were performed to evaluate the stem cell-like traits, including self-renewal capacity, migration and invasion. Chromatin immunoprecipitation (ChIP) and luciferase reporter assays were conducted for determining the binding relationship of POU1F1 on ENO1 promoter region. Herein, aberrantly upregulated POU1F1 was observed in spheroids, compared with the parental PAMC-82 and SNU-16 cells, which promoted stem cell-like traits, as representing increasing sphere formation, enhanced cell migration and invasion. Additionally, POU1F1 expression was positively with glycolytic signaling, as displaying increasing glucose consumption, lactic acid production, and extracellular acid ratio (ECAR). Furthermore, POU1F1 was identified to be a transcriptional activator of ENO1, of which overexpression remarkably abolished POU1F1 knockdown-mediated blocking effects. Taken together, we draw a conclusion that POU1F1 facilitated the stem cell-like properties of GC cells through transcriptionally augmenting ENO1 to enhance glycolysis.
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Affiliation(s)
- Cheng Tang
- Department of General Surgery, The first affiliated hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Hui Zhang
- Department of General Surgery, The first affiliated hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Wen-Sheng Deng
- Department of General Surgery, The first affiliated hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Ling-Qiang Xiong
- Department of General Surgery, The first affiliated hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Li-Qiang Zhou
- Department of General Surgery, The first affiliated hospital of Nanchang University, Nanchang, Jiangxi Province, China
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Han Z, Wang Y, Han L, Yang C. RPN2 in cancer: An overview. Gene 2023; 857:147168. [PMID: 36621657 DOI: 10.1016/j.gene.2023.147168] [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: 08/24/2022] [Revised: 12/07/2022] [Accepted: 01/03/2023] [Indexed: 01/07/2023]
Abstract
Oncogenes together with tumor suppresser genes are confirmed to regulate tumor phenotype in human cancers. RPN2, widely verified as an oncogene, encodes a protein that is part of an N-oligosaccharyl transferase, and is observed to be aberrantly expressed in human malignancies. Accumulating evidence unveils the vital functions of RPN2, contributing to tumorigenicity, metastasis, progression, and multi-drug resistance. Furthermore, previous studies partly indicated that RPN2 was involved in tumor progression via contributing to N-glycosylation and regulating multiple signaling pathways. In addition, RPN2 was also confirmed as a downstream target involved in tumor progression. Moreover, with demonstrated prognosis value and therapeutic target, RPN2 was also determined as a promising biomarker for forecasting patients' prognostic and therapy efficacy. In the present review, we aimed to summarize the present studies of RPN2 in cancer, and enhance the understanding of RPN2's extensive functions and clinical significances.
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Affiliation(s)
- Zhengxuan Han
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Tumour Biological Behaviours, Wuhan, China; Hubei Cancer Clinical Study Center, Wuhan, China; The Clinical Medical Research Center of Peritoneal Cancer of Wuhan, Wuhan, China
| | - You Wang
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lei Han
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Tumour Biological Behaviours, Wuhan, China; Hubei Cancer Clinical Study Center, Wuhan, China; The Clinical Medical Research Center of Peritoneal Cancer of Wuhan, Wuhan, China
| | - Chaogang Yang
- Department of Gastrointestinal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China; Hubei Key Laboratory of Tumour Biological Behaviours, Wuhan, China; Hubei Cancer Clinical Study Center, Wuhan, China; The Clinical Medical Research Center of Peritoneal Cancer of Wuhan, Wuhan, China.
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Zhang R, Liu L, Wang F, Zhao W, Liu K, Yu H, Zhao S, Xu B, Zhang X, Chai J, Hao J. AKAP8L enhances the stemness and chemoresistance of gastric cancer cells by stabilizing SCD1 mRNA. Cell Death Dis 2022; 13:1041. [PMID: 36522343 PMCID: PMC9755141 DOI: 10.1038/s41419-022-05502-4] [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: 07/19/2022] [Revised: 11/26/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022]
Abstract
Gastric cancer (GC) remains the third leading cause of cancer-related deaths. Chemoresistance is the major determinant of GC treatment failure. To explore the molecular mechanisms of GC chemoresistance, mass spectrometry was performed to detect the genes altered in expression between chemoresistant and chemosensitive GC. PRKA kinase anchor protein 8L (AKAP-8L) was identified as one of the top upregulated genes in chemoresistant GC tissues. Moreover, the higher AKAP-8L expression was associated with the lower survival rate in GC patients. Overexpression of AKAP-8L enhanced the GC cell stemness and chemoresistance of oxaliplatin in vivo and in vitro. AKAP-8L deficiency obtained the opposite results. Mechanistically, AKAP-8L interacted with Stearoyl-CoA desaturase 1 (SCD1) mRNA and IGF2BP1 protein, and regulated SCD1 mRNA stability via IGF2BP1-dependent manner. SCD1 played a critical role in mediating the function of AKAP-8L in GC cell stemness and chemoresistance. Clinically, AKAP-8L and SCD1 protein levels was positively associated with human GC chemoresistance. Taken together, our results demonstrated that AKAP-8L facilitates GC chemoresistance via regulating SCD1-mediated stemness of GC cells. AKAP8L may represent a novel therapeutic target to overcome GC chemoresistance.
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Affiliation(s)
- Ruihong Zhang
- grid.27255.370000 0004 1761 1174Key Laboratory of The Ministry of Education for Experimental Teratology, Department of Histology and Embryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong P. R. China
| | - Luguang Liu
- grid.27255.370000 0004 1761 1174Department of Breast and Thyroid Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, 324 Jingwuweiqi Road, Jinan, Shandong P. R. China ,grid.410587.fDepartment of Gastrointestinal Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong P. R. China
| | - Fengqin Wang
- grid.27255.370000 0004 1761 1174Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong P. R. China
| | - Weizhu Zhao
- grid.476866.dDepartment of Oncology, Binzhou People’s Hospital, 515 Huangheqi Road, Binzhou, Shandong P. R. China
| | - Kai Liu
- grid.410587.fDepartment of Gastrointestinal Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong P. R. China
| | - Hang Yu
- grid.410587.fDepartment of Gastrointestinal Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong P. R. China
| | - Siwei Zhao
- grid.410587.fDepartment of Gastrointestinal Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong P. R. China
| | - Botao Xu
- grid.410587.fDepartment of Gastrointestinal Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong P. R. China
| | - Xiaoli Zhang
- grid.27255.370000 0004 1761 1174Key Laboratory of The Ministry of Education for Experimental Teratology, Department of Histology and Embryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong P. R. China
| | - Jie Chai
- grid.410587.fDepartment of Gastrointestinal Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong P. R. China
| | - Jing Hao
- grid.27255.370000 0004 1761 1174Key Laboratory of The Ministry of Education for Experimental Teratology, Department of Histology and Embryology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong P. R. China
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Malpeli G, Barbi S, Innamorati G, Alloggio M, Filippini F, Decimo I, Castelli C, Perris R, Bencivenga M. Landscape of Druggable Molecular Pathways Downstream of Genomic CDH1/Cadherin-1 Alterations in Gastric Cancer. J Pers Med 2022; 12:jpm12122006. [PMID: 36556227 PMCID: PMC9784514 DOI: 10.3390/jpm12122006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/03/2022] [Accepted: 11/24/2022] [Indexed: 12/09/2022] Open
Abstract
Loss of CDH1/Cadherin-1 is a common step towards the acquisition of an abnormal epithelial phenotype. In gastric cancer (GC), mutation and/or downregulation of CDH1/Cadherin-1 is recurrent in sporadic and hereditary diffuse GC type. To approach the molecular events downstream of CDH1/Cadherin-1 alterations and their relevance in gastric carcinogenesis, we queried public databases for genetic and DNA methylation data in search of molecular signatures with a still-uncertain role in the pathological mechanism of GC. In all GC subtypes, modulated genes correlating with CDH1/Cadherin-1 aberrations are associated with stem cell and epithelial-to-mesenchymal transition pathways. A higher level of genes upregulated in CDH1-mutated GC cases is associated with reduced overall survival. In the diffuse GC (DGC) subtype, genes downregulated in CDH1-mutated compared to cases with wild type CDH1/Cadherin-1 resulted in being strongly intertwined with the DREAM complex. The inverse correlation between hypermethylated CpGs and CDH1/Cadherin-1 transcription in diverse subtypes implies a common epigenetic program. We identified nonredundant protein-encoding isoforms of 22 genes among those differentially expressed in GC compared to normal stomach. These unique proteins represent potential agents involved in cell transformation and candidate therapeutic targets. Meanwhile, drug-induced and CDH1/Cadherin-1 mutation-related gene expression comparison predicts FIT, GR-127935 hydrochloride, amiodarone hydrochloride in GC and BRD-K55722623, BRD-K13169950, and AY 9944 in DGC as the most effective treatments, providing cues for the design of combined pharmacological treatments. By integrating genetic and epigenetic aspects with their expected functional outcome, we unveiled promising targets for combinatorial pharmacological treatments of GC.
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Affiliation(s)
- Giorgio Malpeli
- Department of Surgical, Odontostomatologic, Maternal and Child Sciences, University of Verona, 37134 Verona, Italy
- Correspondence:
| | - Stefano Barbi
- Department of Diagnostics and Public Health, University and Hospital Trust of Verona, 37134 Verona, Italy
| | - Giulio Innamorati
- Department of Surgical, Odontostomatologic, Maternal and Child Sciences, University of Verona, 37134 Verona, Italy
| | - Mariella Alloggio
- General and Upper GI Surgery Division, Department and of Surgical, Odontostomatologic, Maternal and Child Sciences, University of Verona, 37134 Verona, Italy
| | - Federica Filippini
- General and Upper GI Surgery Division, Department and of Surgical, Odontostomatologic, Maternal and Child Sciences, University of Verona, 37134 Verona, Italy
| | - Ilaria Decimo
- Section of Pharmacology, Department of Diagnostic and Public Health, University of Verona, 37134 Verona, Italy
| | - Claudia Castelli
- Pathology Unit, Department of Diagnostics and Public Health, University and Hospital Trust of Verona, 37134 Verona, Italy
| | - Roberto Perris
- Department of Biosciences, COMT-Centre for Molecular and Translational Oncology, University of Parma, 43124 Parma, Italy
| | - Maria Bencivenga
- General and Upper GI Surgery Division, Department and of Surgical, Odontostomatologic, Maternal and Child Sciences, University of Verona, 37134 Verona, Italy
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Sun J, Wang J, Li M, Li S, Li H, Lu Y, Li F, Xin T, Jin F. circTOP2A functions as a ceRNA to promote glioma progression by upregulating RPN2. Cancer Sci 2022; 114:490-503. [PMID: 36227125 PMCID: PMC9899613 DOI: 10.1111/cas.15612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 11/29/2022] Open
Abstract
Competing endogenous RNA (ceRNA)-mediated signaling pathway dysregulation provides great insight into comprehensively understanding the molecular mechanism and combined targeted therapy for glioblastoma. circRNA is characterized by high stability, tissue/developmental stage-specific expression and abundance in brain and plays significant roles in the initiation and progression of cancer. Our previous published data have demonstrated that RPN2 was significantly upregulated in glioma and promoted tumor progression via the activation of the Wnt/β-catenin pathway. Furthermore, we proved that miR-422a regulated the Wnt/β-catenin signaling pathway by directly targeting RPN2. In this study, based on the glioblastoma microarray profiles, we identified the upstream circTOP2A, which completely bound to miR-422a and was co-expressed with the RPN2. circTOP2A was significantly overexpressed in glioma and conferred a poor prognosis. circTOP2A could regulate RPN2 expression by sponging miR-422a, verified by western blot, dual-luciferase reporter gene assay, and RNA pull-down assay. Functional assays including CCK8, transwell and FITC-annexin V were performed to explore the RPN2-mediated role of the circTOP2A effect on the glioma malignant phenotype. Additionally, TOP/FOP and immunofluorescence analysis were used to confirm that sh-circTOP2A could suppress the Wnt/β-catenin pathway partly through RPN2. Finally, a tumor xenograft model was applied to validate the biological function of circTOP2A in vivo. Taken together, our findings reveal the critical role of circTOP2A in promoting glioma proliferation and invasion via a ceRNA mechanism and provide an exploitable biomarker and therapeutic target for glioma patients.
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Affiliation(s)
- Jikui Sun
- Department of NeurosurgeryAffiliated Hospital of Jining Medical University, & Shandong Provincial Key Laboratory of Stem Cells and Neuro‐oncologyJiningChina,Shandong University of Traditional Chinese MedicineJinanChina,Shandong Medicine and Health Key Laboratory of NeurosurgeryThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan HospitalJinanChina
| | - Jinhuan Wang
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Department of NeurosurgeryTianjin Neurosurgical Institute, Tianjin Huanhu HospitalTianjinChina
| | - Meng Li
- Shandong Medicine and Health Key Laboratory of NeurosurgeryThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan HospitalJinanChina
| | - Shengjie Li
- Shandong Medicine and Health Key Laboratory of NeurosurgeryThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan HospitalJinanChina
| | - Hanyun Li
- Cheeloo College of MedicineShandong UniversityJinanChina
| | - Yan Lu
- Department of NeurosurgeryAffiliated Hospital of Jining Medical University, & Shandong Provincial Key Laboratory of Stem Cells and Neuro‐oncologyJiningChina,Medical Research CenterAffiliated Hospital of Jining Medical UniversityJiningChina
| | - Feng Li
- Shandong Medicine and Health Key Laboratory of NeurosurgeryThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan HospitalJinanChina
| | - Tao Xin
- Shandong University of Traditional Chinese MedicineJinanChina,Shandong Medicine and Health Key Laboratory of NeurosurgeryThe First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan HospitalJinanChina
| | - Feng Jin
- Department of NeurosurgeryAffiliated Hospital of Jining Medical University, & Shandong Provincial Key Laboratory of Stem Cells and Neuro‐oncologyJiningChina
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Ahmed Juvale II, Abdul Hamid AA, Abd Halim KB, Che Has AT. P-glycoprotein: new insights into structure, physiological function, regulation and alterations in disease. Heliyon 2022; 8:e09777. [PMID: 35789865 PMCID: PMC9249865 DOI: 10.1016/j.heliyon.2022.e09777] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 02/04/2022] [Accepted: 06/17/2022] [Indexed: 01/01/2023] Open
Abstract
The multidrug resistance phenomenon presents a major threat to the pharmaceutical industry. This resistance is a common occurrence in several diseases and is mediated by multidrug transporters that actively pump substances out of the cell and away from their target regions. The most well-known multidrug transporter is the P-glycoprotein transporter. The binding sites within P-glycoprotein can accommodate a variety of compounds with diverse structures. Hence, numerous drugs are P-glycoprotein substrates, with new ones being identified every day. For many years, the mechanisms of action of P-glycoprotein have been shrouded in mystery, and scientists have only recently been able to elucidate certain structural and functional aspects of this protein. Although P-glycoprotein is highly implicated in multidrug resistant diseases, this transporter also performs various physiological roles in the human body and is expressed in several tissues, including the brain, kidneys, liver, gastrointestinal tract, testis, and placenta. The expression levels of P-glycoprotein are regulated by different enzymes, inflammatory mediators and transcription factors; alterations in which can result in the generation of a disease phenotype. This review details the discovery, the recently proposed structure and the regulatory functions of P-glycoprotein, as well as the crucial role it plays in health and disease.
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Affiliation(s)
- Iman Imtiyaz Ahmed Juvale
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia Health Campus, Kubang Kerian, Kota Bharu, 16150, Kelantan, Malaysia
| | - Azzmer Azzar Abdul Hamid
- Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia, Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, 25200, Kuantan, Pahang, Malaysia
| | - Khairul Bariyyah Abd Halim
- Research Unit for Bioinformatics and Computational Biology (RUBIC), Kulliyyah of Science, International Islamic University Malaysia, Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, 25200, Kuantan, Pahang, Malaysia
| | - Ahmad Tarmizi Che Has
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia Health Campus, Kubang Kerian, Kota Bharu, 16150, Kelantan, Malaysia
- Corresponding author.
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Fan N, Sun Y, Yan L, Chen W, Wang Y, Wang S, Song Y. Itraconazole-Induced the Activation of Adenosine 5'-Monophosphate (Amp)-Activated Protein Kinase Inhibits Tumor Growth of Melanoma via Inhibiting ERK Signaling. Cell Biochem Biophys 2022; 80:331-340. [PMID: 35094205 DOI: 10.1007/s12013-021-01048-y] [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: 07/29/2021] [Accepted: 11/10/2021] [Indexed: 11/25/2022]
Abstract
Itraconazole, an effective broad-spectrum antifungal drug, has been well established for its anticancer activity in cancers including melanoma. However, details concerning its underlying mechanism in melanoma are unclear. This work investigated the function of itraconazole-induced 5'-monophosphate (AMP)-activated protein kinase alpha (AMPKα) in melanoma progression through ERK signaling. The AMPKα level in melanoma tissues and cells was assessed by RT-qPCR and western blot. Survival analysis of patients with melanoma based on the AMPKα expression level was performed according to TCGA database. Melanoma cell proliferation, migration, and invasion were examined using CCK-8, colony formation, wound healing, and Transwell assays. A xenograft tumor model was established to examine the effect of itraconazole on tumor growth in vivo. The AMPKα mRNA and protein levels were reduced in melanoma tissues and cells. A low expression of AMPKα indicated a poor prognosis. Functionally, itraconazole restrained melanoma cell proliferation, migration, and invasion by upregulating AMPKα. Itraconazole activated AMPK signaling and inhibited ERK signaling in melanoma cells. Activation of ERK signaling reversed the effect of itraconazole on cellular process in melanoma. Moreover, itraconazole-induced AMPKα inhibited melanoma tumor growth in vivo by inhibiting ERK signaling. Itraconazole-induced AMPKα inhibits the progression of melanoma by inhibition of ERK signaling.
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Affiliation(s)
- Ni Fan
- Department of Dermatology, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China
| | - Yueping Sun
- Department of Gynaecology and Obstetrics, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China
| | - Lv Yan
- Center of Translational Medicine, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China
| | - Weining Chen
- Department of Dermatology, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China
| | - Yueping Wang
- Department of Dermatology, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China
| | - Shusheng Wang
- Department of General Surgery, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China.
| | - Yu Song
- Department of Oncology, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, 215600, Jiangsu, China.
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Ding J, Xu J, Deng Q, Ma W, Zhang R, He X, Liu S, Zhang L. Knockdown of Oligosaccharyltransferase Subunit Ribophorin 1 Induces Endoplasmic-Reticulum-Stress-Dependent Cell Apoptosis in Breast Cancer. Front Oncol 2021; 11:722624. [PMID: 34778038 PMCID: PMC8578895 DOI: 10.3389/fonc.2021.722624] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 10/07/2021] [Indexed: 12/24/2022] Open
Abstract
Ribophorin 1 (RPN1) is a major part of Oligosaccharyltransferase (OST) complex, which is vital for the N-linked glycosylation. Though it has been verified that the abnormal glycosylation is closely related to the development of breast cancer, the detail role of RPN1 in breast cancer remains unknown. In this study, we explored the public databases to investigate the relationship between the expression levels of OST subunits and the prognosis of breast cancer. Then, we focused on the function of RPN1 in breast cancer and its potential mechanisms. Our study showed that the expression of several OST subunits including RPN1, RPN2, STT3A STT3B, and DDOST were upregulated in breast cancer samples. The protein expression level of RPN1 was also upregulated in breast cancer. Higher expression of RPN1 was correlated with worse clinical features and poorer prognosis. Furthermore, knockdown of RPN1 suppressed the proliferation and invasion of breast cancer cells in vitro and induced cell apoptosis triggered by endoplasmic reticulum stress. Our results identified the oncogenic function of RPN1 in breast cancer, implying that RPN1 might be a potential biomarker and therapeutic target for breast cancer.
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Affiliation(s)
- Jiajun Ding
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, Cancer Institutes, Key Laboratory of Breast Cancer in Shanghai, The Shanghai Key Laboratory of Medical Epigenetics, Key Laboratory of Medical Epigenetics and Metabolism, Shanghai Medical College, Fudan University, Shanghai, China.,Breast Surgery, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Jiahui Xu
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, Cancer Institutes, Key Laboratory of Breast Cancer in Shanghai, The Shanghai Key Laboratory of Medical Epigenetics, Key Laboratory of Medical Epigenetics and Metabolism, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qiaodan Deng
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, Cancer Institutes, Key Laboratory of Breast Cancer in Shanghai, The Shanghai Key Laboratory of Medical Epigenetics, Key Laboratory of Medical Epigenetics and Metabolism, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wei Ma
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, Cancer Institutes, Key Laboratory of Breast Cancer in Shanghai, The Shanghai Key Laboratory of Medical Epigenetics, Key Laboratory of Medical Epigenetics and Metabolism, Shanghai Medical College, Fudan University, Shanghai, China
| | - Rui Zhang
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, Cancer Institutes, Key Laboratory of Breast Cancer in Shanghai, The Shanghai Key Laboratory of Medical Epigenetics, Key Laboratory of Medical Epigenetics and Metabolism, Shanghai Medical College, Fudan University, Shanghai, China
| | - Xueyan He
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, Cancer Institutes, Key Laboratory of Breast Cancer in Shanghai, The Shanghai Key Laboratory of Medical Epigenetics, Key Laboratory of Medical Epigenetics and Metabolism, Shanghai Medical College, Fudan University, Shanghai, China
| | - Suling Liu
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, Cancer Institutes, Key Laboratory of Breast Cancer in Shanghai, The Shanghai Key Laboratory of Medical Epigenetics, Key Laboratory of Medical Epigenetics and Metabolism, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lixing Zhang
- Fudan University Shanghai Cancer Center & Institutes of Biomedical Sciences, Cancer Institutes, Key Laboratory of Breast Cancer in Shanghai, The Shanghai Key Laboratory of Medical Epigenetics, Key Laboratory of Medical Epigenetics and Metabolism, Shanghai Medical College, Fudan University, Shanghai, China
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14
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Kukal S, Guin D, Rawat C, Bora S, Mishra MK, Sharma P, Paul PR, Kanojia N, Grewal GK, Kukreti S, Saso L, Kukreti R. Multidrug efflux transporter ABCG2: expression and regulation. Cell Mol Life Sci 2021; 78:6887-6939. [PMID: 34586444 PMCID: PMC11072723 DOI: 10.1007/s00018-021-03901-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/24/2021] [Accepted: 07/15/2021] [Indexed: 12/15/2022]
Abstract
The adenosine triphosphate (ATP)-binding cassette efflux transporter G2 (ABCG2) was originally discovered in a multidrug-resistant breast cancer cell line. Studies in the past have expanded the understanding of its role in physiology, disease pathology and drug resistance. With a widely distributed expression across different cell types, ABCG2 plays a central role in ATP-dependent efflux of a vast range of endogenous and exogenous molecules, thereby maintaining cellular homeostasis and providing tissue protection against xenobiotic insults. However, ABCG2 expression is subjected to alterations under various pathophysiological conditions such as inflammation, infection, tissue injury, disease pathology and in response to xenobiotics and endobiotics. These changes may interfere with the bioavailability of therapeutic substrate drugs conferring drug resistance and in certain cases worsen the pathophysiological state aggravating its severity. Considering the crucial role of ABCG2 in normal physiology, therapeutic interventions directly targeting the transporter function may produce serious side effects. Therefore, modulation of transporter regulation instead of inhibiting the transporter itself will allow subtle changes in ABCG2 activity. This requires a thorough comprehension of diverse factors and complex signaling pathways (Kinases, Wnt/β-catenin, Sonic hedgehog) operating at multiple regulatory levels dictating ABCG2 expression and activity. This review features a background on the physiological role of transporter, factors that modulate ABCG2 levels and highlights various signaling pathways, molecular mechanisms and genetic polymorphisms in ABCG2 regulation. This understanding will aid in identifying potential molecular targets for therapeutic interventions to overcome ABCG2-mediated multidrug resistance (MDR) and to manage ABCG2-related pathophysiology.
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Affiliation(s)
- Samiksha Kukal
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Debleena Guin
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Main Bawana Road, Delhi, 110042, India
| | - Chitra Rawat
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Shivangi Bora
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Main Bawana Road, Delhi, 110042, India
| | - Manish Kumar Mishra
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Main Bawana Road, Delhi, 110042, India
| | - Priya Sharma
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
| | - Priyanka Rani Paul
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Neha Kanojia
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Gurpreet Kaur Grewal
- Department of Biotechnology, Kanya Maha Vidyalaya, Jalandhar, Punjab, 144004, India
| | - Shrikant Kukreti
- Nucleic Acids Research Lab, Department of Chemistry, University of Delhi (North Campus), Delhi, 110007, India
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University of Rome, P. le Aldo Moro 5, 00185, Rome, Italy
| | - Ritushree Kukreti
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Mall Road, Delhi, 110007, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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15
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Li Q, Lai Q, He C, Zhang H, Pan X, Li H, Yan Q, Fang Y, Liu S, Li A. RUNX1 regulates the proliferation and chemoresistance of colorectal cancer through the Hedgehog signaling pathway. J Cancer 2021; 12:6363-6371. [PMID: 34659526 PMCID: PMC8489138 DOI: 10.7150/jca.51338] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 08/17/2021] [Indexed: 01/05/2023] Open
Abstract
Background: Chemoresistance is one of the main causes of recurrence in colorectal cancer (CRC) patients and leads to a poor prognosis. To characterize RUNX1 expression in colorectal cancer (CRC) and elucidate its mechanistic involvement in the tumor biology of this disease. Methods: The expression of RUNX1 in CRC and normal tissues was detected by bioinformatics analysis. Cell proliferation was measured by CCK-8 and clonogenic assays. In vivo tumor progression was assessed with a xenograft mouse model. Cell drug sensitivity tests and flow cytometry were performed to analyze CRC cell chemoresistance. RUNX1, key molecules of the Hedgehog signaling pathway, and ABCG2 were detected by qRT-PCR and Western blotting. Results: RUNX1 expression is upregulated in CRC tissues. RUNX1 enhanced CRC cell resistance to 5-fluorouracil (5-FU), promoted proliferation, and inhibited 5-FU-induced apoptosis. Mechanistically, RUNX1 can activate the Hedgehog signaling pathway and promote the expression of ABCG2 in CRC cells. Conclusions: Our study demonstrated that RUNX1 promotes CRC proliferation and chemoresistance by activating the Hedgehog signaling pathway and ABCG2 expression.
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Affiliation(s)
- Qingyuan Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qiuhua Lai
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Chengcheng He
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Haonan Zhang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xingzhu Pan
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Haolin Li
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Qun Yan
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yuxin Fang
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Side Liu
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Aimin Li
- Guangdong Provincial Key Laboratory of Gastroenterology, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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Wu J, Zhou Y, Wang T, Jiang C, Gao Y, Wei B. ZFX promotes tumorigenesis and confers chemotherapy resistance in esophageal squamous cell carcinoma. Clin Res Hepatol Gastroenterol 2021; 45:101586. [PMID: 33662636 DOI: 10.1016/j.clinre.2020.101586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Zinc finger X-chromosomal protein (ZFX) has been shown to be essential for the development and progression of multiple types of human cancers. However, its potential roles in esophageal squamous cell carcinoma (ESCC) have not yet been elucidated. MATERIALS AND METHODS Eighty-three pairs of frozen ESCC samples and their para-cancer samples and 24 fresh ESCC samples were collected. In vitro chemosensitivity was tested using the histoculture drug response assay. Quantitative RT-PCR and western blotting were used to measure the expression of functional genes. The effects of ZFX on cell growth, cell apoptosis, and chemosensitivity of the esophageal cancer cells were assessed. RESULTS We found that ZFX was more upregulated in ESCC tissues than in the para-cancer tissues, and its high expression was correlated with inferior clinicopathological characteristics and overall survival. Multivariate analysis revealed that ZFX was an independent prognostic factor in ESCC patients. In ESCC cell lines, ZFX silencing suppressed cell growth and induced cell apoptosis. In addition, ZFX expression was negatively correlated with the sensitivity of fresh ESCC tissues to chemotherapeutic drugs, including cisplatin, docetaxel, fluorouracil, and irinotecan. Furthermore, the depletion of ZFX sensitized ESCC cells to cisplatin, and docetaxel treatment. Mechanistically, ZFX silencing resulted in the inactivation of the MEK/ERK pathway, which mediated the downregulation of P-glycoprotein expression. CONCLUSION Our study therefore indicates that ZFX possibly plays a critical role in ESCC tumorigenesis and chemotherapy resistance and could be a significant prognostic biomarker and therapeutic target for ESCC.
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Affiliation(s)
- Jingjing Wu
- Department of Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an 223300, China; Department of Hematology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an 223300, China
| | - Yu Zhou
- Department of Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an 223300, China
| | - Tao Wang
- Department of Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an 223300, China
| | - Chao Jiang
- Department of Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an 223300, China
| | - Yong Gao
- Department of Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an 223300, China.
| | - Bin Wei
- Department of Oncology, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huai'an 223300, China.
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Upregulation of ECT2 Predicts Adverse Clinical Outcomes and Increases 5-Fluorouracil Resistance in Gastric Cancer Patients. JOURNAL OF ONCOLOGY 2021; 2021:2102890. [PMID: 34367280 PMCID: PMC8337122 DOI: 10.1155/2021/2102890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 12/13/2022]
Abstract
Background The abnormal expression and prognosis prediction of epithelial cell transforming sequence 2 (ECT2) in gastric cancer (GC) has been reported. However, the effect of ECT2 on 5-fluorouracil (5-Fu) resistance in GC is unclear. This research aims to solve the abovementioned problems. Methods Gene expression was detected by RT-qPCR and Western blot analysis. Cell viability was evaluated by the colony formation assay, MTT assay, and flow cytometric analysis. Transwell and wound healing assays were used to detect cell metastasis. Results Upregulation of ECT2 was found in stomach adenocarcinoma (STAD) and GC tissues. In addition, high ECT2 expression can predict adverse clinical outcomes in GC patients. More importantly, ECT2 knockdown weakened the resistance of 5-FU in GC cells. ECT2 silencing reduced the cell migratory and invasive abilities of GC cells treated with 5-FU. We also found that downregulation of ECT2 increased 5-FU sensitivity in GC cells by downregulating P-gp, MRP1, and Bcl-2. Conclusion Upregulation of ECT2 can predict adverse clinical outcomes and increase 5-FU resistance in GC patients.
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Babao Dan Reverses Multiple-Drug Resistance in Gastric Cancer Cells via Triggering Apoptosis and Autophagy and Inhibiting PI3K/AKT/mTOR Signaling. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:5631942. [PMID: 34306145 PMCID: PMC8285167 DOI: 10.1155/2021/5631942] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/11/2021] [Accepted: 06/25/2021] [Indexed: 12/26/2022]
Abstract
Multidrug resistance (MDR) is a critical reason for cancer chemotherapy failure. Babaodan (BBD) is a famous traditional Chinese patent medicine reported to have antigastric cancer activity. However, the roles and molecular mechanisms of the reversal of MDR of gastric cancer by BBD have not been well described until now. Therefore, the purpose of this study was to elucidate further the role of BBD in reversing the MDR of gastric cancer cells and its specific regulatory mechanism via in vitro experiments. To verify our results, MTT, Doxorubicin (DOX) staining, Rhodamin123 (Rho123) staining, DAPI staining, Annexin V-FITC, propidium iodide (PI), Cyto-ID, and western blot assays were performed. To determine whether BBD triggers apoptosis and autophagy through the PI3K/AKT/mTOR signaling, we also applied 3-methyladenine (3-MA), chloroquine (CQ), and 740Y-P (an activator of PI3K). The results showed that BBD reversed the MDR and induced apoptosis and autophagy of SGC7901/DDP cells. Pathway analyses suggested BBD inhibits PI3K/AKT/mTOR pathway activity and subsequent apoptosis-autophagy induction. Inhibition of autophagy with 3-MA and chloroquine (CQ) was performed to confirm that BBD promoted autophagy. PI3K agonist, 740Y-P, further verified BBD inhibition of PI3K/AKT/mTOR pathway activation. In conclusion, BBD may reverse the MDR of gastric cancer cells, induce apoptosis, and promote autophagy via inactivation of the PI3K/AKT/mTOR signaling pathway.
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An ZJ, Li Y, Tan BB, Zhao Q, Fan LQ, Zhang ZD, Zhao XF, Li SY. Up-regulation of KLF17 expression increases the sensitivity of gastric cancer to 5-fluorouracil. Int J Immunopathol Pharmacol 2021; 35:20587384211010925. [PMID: 33960231 PMCID: PMC8113926 DOI: 10.1177/20587384211010925] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
It has been reported that the expression of Krüppel-like factor 17 (KLF17) was
associated with the occurrence, development, invasion, metastasis and
chemotherapy resistance of various tumors. However, the detailed mechanisms by
which KLF17 promotes chemotherapy resistance in gastric cancer (GC) have not
been fully investigated. In the present study, we collected the GC tissues and
non-tumor tissues (matched adjacent normal tissues with corresponding GC
tissues) of 60 GC patients, used qRT-PCR, Western blot and immunohistochemistry
assay to analyze the relationship between the expression of KLF17 and the
clinical pathological data of the patients. The effect of KLF17 on the
sensitivity of GC cell lines to 5-fluorouracil (5-FU), and the potential
mechanism were detected by MTS assay, Flow cytometry assay, and Western blot.
Compared with non-tumor tissues, the expression level of KLF17 in GC tissue was
significantly down-regulated, and the expression level of KLF17 in GES-1 cell
line and GC cell lines also had a similar trend. Down-regulated expression of
KLF17 is related to tumor size, invasion, regional lymph node metastasis, and
TNM staging. Furthermore, through upregulating the expression of KLF17, the
sensitivity of BGC-823 and SGC-7901 cell lines to 5-FU was obviously increased.
Mechanistically, upregulation the expression of KLF17 can inhibit the
expressions of P-glycoprotein (P-gp), multidrug resistance protein 1 (MRP1), and
B-Cell lymphoma-2 (BCL-2), which have been reported to be associated with drug
resistance and cell proliferation. Collectively, these data implied that KLF17
has the biological effect of inhibiting chemotherapy resistance of GC, and it
could be a potential strategy for the GC chemotherapy resistance.
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Affiliation(s)
- Zhao-Jie An
- Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yong Li
- Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Bi-Bo Tan
- Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Qun Zhao
- Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Li-Qiao Fan
- Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhi-Dong Zhang
- Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xue-Feng Zhao
- Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Shao-Yi Li
- Department of General Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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Lu J, Bang H, Kim SM, Cho SJ, Ashktorab H, Smoot DT, Zheng CH, Ryeom SW, Yoon SS, Yoon C, Lee JH. Lymphatic metastasis-related TBL1XR1 enhances stemness and metastasis in gastric cancer stem-like cells by activating ERK1/2-SOX2 signaling. Oncogene 2021; 40:922-936. [PMID: 33288885 DOI: 10.1038/s41388-020-01571-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 10/20/2020] [Accepted: 11/17/2020] [Indexed: 12/20/2022]
Abstract
The poor prognosis of gastric cancer (GC) results largely from metastasis and chemotherapy resistance. Toward novel therapeutic strategies that target or evade these phenomena, we evaluated the function of the transcriptional regulator transducin (β)-like 1 X-linked receptor 1 (TBL1XR1) in GC cells, including stem-like cells. In this study, the correlation of expression of TBL1XR1 and clinical features and GC patients' outcomes was evaluated. Knockdown or exogenous expression of TBL1XR1 was combined with in vitro (2D and 3D cultures) and in vivo (mouse lung and lymphatic metastasis models) assays to evaluate the function of TBL1XR1. TBL1XR1's downstream signaling was delineated by phospho-kinase array and knockdown of candidate mediators. Analysis of clinical data showed that TBL1XR1 overexpression was correlated with worse prognosis. Functional assays showed that TBL1XR1 promoted stemness, epithelial-mesenchymal transition (EMT), and lung and lymphatic metastasis in GC cells. TBL1XR1 activated ERK1/2-Sox2 signaling and was dependent on signaling via PI3K/AKT, in GC stem-like cells distinguished by CD44 expression. Moreover, inhibition of these signaling proteins reversed chemoresistance in in vitro and in vivo models. Taken together, our results indicate that TBL1XR1 promotes stemness and metastasis in GC, making it a potential prognostic indicator. The PI3K/AKT-TBL1XR1-ERK1/2-Sox2 axis may represent a target for the treatment of GC.
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Affiliation(s)
- Jun Lu
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fujian, China
| | - Heejin Bang
- Department of Pathology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - Su Mi Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
- Department of Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Gyeonggi-do, South Korea
| | - Soo-Jeong Cho
- Department of Internal Medicine, Liver Research Institute, Seoul National University Hospital, Seoul, South Korea
| | | | - Duane T Smoot
- Department of Medicine, Howard University, Washington, DC, USA
| | - Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fujian, China
| | - Sandra W Ryeom
- Department of Cancer Biology, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Sam S Yoon
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Changhwan Yoon
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | - Jun Ho Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
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21
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RPN2 is targeted by miR-181c and mediates glioma progression and temozolomide sensitivity via the wnt/β-catenin signaling pathway. Cell Death Dis 2020; 11:890. [PMID: 33087705 PMCID: PMC7578010 DOI: 10.1038/s41419-020-03113-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 12/12/2022]
Abstract
Accumulating evidence indicates that the dysregulation of the miRNAs/mRNA-mediated carcinogenic signaling pathway network is intimately involved in glioma initiation and progression. In the present study, by performing experiments and bioinformatics analysis, we found that RPN2 was markedly elevated in glioma specimens compared with normal controls, and its upregulation was significantly linked to WHO grade and poor prognosis. Knockdown of RPN2 inhibited tumor proliferation and invasion, promoted apoptosis, and enhanced temozolomide (TMZ) sensitivity in vitro and in vivo. Mechanistic investigation revealed that RPN2 deletion repressed β-catenin/Tcf-4 transcription activity partly through functional activation of glycogen synthase kinase-3β (GSK-3β). Furthermore, we showed that RPN2 is a direct functional target of miR-181c. Ectopic miR-181c expression suppressed β-catenin/Tcf-4 activity, while restoration of RPN2 partly reversed this inhibitory effect mediated by miR-181c, implying a molecular mechanism in which TMZ sensitivity is mediated by miR-181c. Taken together, our data revealed a new miR-181c/RPN2/wnt/β-catenin signaling axis that plays significant roles in glioma tumorigenesis and TMZ resistance, and it represents a potential therapeutic target, especially in GBM.
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22
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Liu J, Hu HB, Liu YM, Li FX, Zhang LP, Liao ZM. LncRNA HOTTIP promotes the proliferation and invasion of ovarian cancer cells by activating the MEK/ERK pathway. Mol Med Rep 2020; 22:3667-3676. [PMID: 33000231 PMCID: PMC7533522 DOI: 10.3892/mmr.2020.11452] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 06/22/2020] [Indexed: 12/27/2022] Open
Abstract
Recent studies have revealed that long non-coding RNAs (lncRNAs) serve important roles in carcinogenesis and that this type of gene may be used as biomarkers in cancer. A high level of lncRNA HOXA distal transcript antisense RNA (HOTTIP) is associated with unfavorable prognosis for patients with ovarian cancer (OC), but the mechanism of HOTTIP involved in OC development remains to be elucidated. The present study aimed to investigate the mechanism of HOTTIP in metastasis-associated OC cell behaviors. HOTTIP levels in ovarian cells were quantified by reverse transcription-quantitative PCR, cell proliferation was analyzed by colony formation assay, and apoptosis was assessed by flow cytometry. Cell migratory and invasive abilities were evaluated by wound healing and Transwell assays, respectively. The expression levels of mitogen-activated protein kinase kinase (MEK)/ERK pathway-associated proteins were detected by western blotting. The results demonstrated that knockdown of HOTTIP in OC cells significantly reduced the phosphorylation levels of MEK and ERK, inhibited the proliferation and invasion of OC cells and promoted their apoptosis. Furthermore, the effects of HOTTIP on cell migration and invasion were partly associated with the epithelial-mesenchymal transition (EMT) process. Proliferation, invasion and EMT of OC cells were enhanced following overexpression of HOTTIP; however, these effects were reversed by the MEK/ERK pathway inhibitor U0126. In conclusion, HOTTIP was demonstrated to promote the proliferation, migration and invasion of OC cells by activating the MEK/ERK pathway. Therefore, HOTTIP may serve as a potential therapeutic target for OC.
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Affiliation(s)
- Jian Liu
- Department of Gynaecology, Yuebei People's Hospital, Shaoguan, Guangdong 512026, P.R. China
| | - Hong-Bo Hu
- Department of Gynaecology, Yuebei People's Hospital, Shaoguan, Guangdong 512026, P.R. China
| | - Yan-Ming Liu
- Department of Clinical Laboratory, Yuebei People's Hospital, Shaoguan, Guangdong 512026, P.R. China
| | - Fan-Xiang Li
- Department of Gynaecology, Yuebei People's Hospital, Shaoguan, Guangdong 512026, P.R. China
| | - Liu-Ping Zhang
- Department of Gynaecology, Yuebei People's Hospital, Shaoguan, Guangdong 512026, P.R. China
| | - Zong-Min Liao
- Department of Gynaecology, Yuebei People's Hospital, Shaoguan, Guangdong 512026, P.R. China
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Sun J, Chen Z, Xiong J, Wang Q, Tang F, Zhang X, Mo L, Wang C, Fan W, Wang J. MicroRNA‑422a functions as a tumor suppressor in glioma by regulating the Wnt/β‑catenin signaling pathway via RPN2. Oncol Rep 2020; 44:2108-2120. [PMID: 33000268 PMCID: PMC7550978 DOI: 10.3892/or.2020.7741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 07/16/2020] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs (miRs), which act as crucial regulators of oncogenes and tumor suppressors, have been confirmed to play a significant role in the initiation and progression of various malignancies, including glioma. The present study analyzed the expression and roles of miR‑422a in glioma, and reverse transcription‑quantitative PCR confirmed that miR‑422a expression was significantly lower in glioblastoma multiforme (GBM) samples and cell lines compared with the low‑grade glioma samples and the H4 cell line, respectively. miR‑422a overexpression suppressed proliferation and invasion, and induced apoptosis in LN229 and U87 cell lines. Luciferase reporter assay, western blotting and RNA immunoprecipitation analysis revealed that ribophorin II (RPN2) is a direct functional target of miR‑422a. Additionally, the overexpression of RPN2 partially reversed the miR‑422a‑mediated inhibitory effect on the malignant phenotype. Mechanistic investigation demonstrated that the upregulation of miR‑422a inhibited β‑catenin/transcription factor 4 transcriptional activity, at least partially through RPN2, as indicated by in vitro and in vivo experiments. Furthermore, RPN2 expression was inversely correlated with miR‑422a expression in GBM specimens and predicted patient survival in the Chinese Glioma Genome Atlas, UALCAN, Gene Expression Profiling Interactive Analysis databases. In conclusion, the present data reveal a new miR‑422a/RPN2/Wnt/β‑catenin signaling axis that plays critical roles in glioma tumorigenesis, and it represents a potential therapeutic target for GBM.
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Affiliation(s)
- Jikui Sun
- School of Medicine, Nankai University, Tianjin 300071, P.R. China
| | - Zhijuan Chen
- Clinical Medicine School, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Jinbiao Xiong
- Clinical Medicine School, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Qiong Wang
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Fan Tang
- Pathology Department, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Xuebin Zhang
- Pathology Department, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Lidong Mo
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Chen Wang
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Weijia Fan
- Tianjin Cerebral Vascular and Neural Degenerative Disease Key Laboratory, Tianjin Neurosurgery Institute, Department of Neurosurgery, Tianjin Huan Hu Hospital, Tianjin 300350, P.R. China
| | - Jinhuan Wang
- School of Medicine, Nankai University, Tianjin 300071, P.R. China
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Wang Z, Qiu X, Zhang H, Li W. KLF5 influences cell biological function and chemotherapy sensitivity through the JNK signaling pathway in anaplastic thyroid carcinoma. J Biochem Mol Toxicol 2020; 34:e22469. [PMID: 32173973 DOI: 10.1002/jbt.22469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 01/03/2020] [Accepted: 01/31/2020] [Indexed: 01/15/2023]
Abstract
We aimed to investigate the effects of Krüppel-like factor 5 (KLF5) on cell biological function and chemotherapy sensitivity of anaplastic thyroid carcinoma (ATC) and explore the underlying mechanism. In this study, we found that KLF5 was expressed higher in ATC cells than that in normal thyroid cells. Knockdown of KLF5 inhibited proliferation, induced apoptosis and restrained invasion and migration abilities of ATC cells. KLF5 overexpression promoted proliferation and inhibited apoptosis of ATC cells in response to doxorubicin (Dox), whereas KLF5 knockdown increased the sensitivity of ATC cells to Dox. Multidrug resistance gene 1/permeability glycoprotein and ATP-binding cassette superfamily G member 2 were heightened in ATC cells with KLF5 overexpression, but the opposite results were found in sh-KLF5-treated cells. Phosphorylation (p)-c-Jun N-terminal kinase (JNK) was upregulated in KLF5 overexpression cells, whereas it was downregulated in the KLF5 knockdown treatment group. Furthermore, KLF5 knockdown inhibited ATC growth and enhanced the Dox sensitivity of ATC by inactivating the JNK signaling pathway. Taken together, our findings concluded that KLF5 knockdown can remarkably inhibit the proliferation, invasion, and migration and induce apoptosis of ATC cells, and increase the chemotherapy sensitivity of ATC, all of which probably through inhibiting the JNK signaling pathway.
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Affiliation(s)
- Zheng Wang
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.,Department of Breast and Thyroid Surgery, Nanyang Central Hospital, Nanyang, China
| | - Xinguang Qiu
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hao Zhang
- Department of Breast and Thyroid Surgery, Nanyang Central Hospital, Nanyang, China
| | - Weihan Li
- Department of Breast and Thyroid Surgery, Nanyang Central Hospital, Nanyang, China
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25
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Ding C, Wu Z, You H, Ge H, Zheng S, Lin Y, Wu X, Lin Z, Kang D. CircNFIX promotes progression of glioma through regulating miR-378e/RPN2 axis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:506. [PMID: 31888753 PMCID: PMC6936104 DOI: 10.1186/s13046-019-1483-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/15/2019] [Indexed: 12/12/2022]
Abstract
Background Circular RNA nuclear factor I X (circNFIX) has been reported to play an important role in glioma progression. However, the mechanism by which circNFIX participates in glioma progression remains poorly understood. Methods GERIA online were used to analyze the abnormally expressed genes in glioma tissues. The expression levels of circNFIX, microRNA (miR)-378e and Ribophorin-II (RPN2) were measured by quantitative real-time polymerase chain reaction or western blot. Cell cycle distribution, apoptosis, glycolysis, migration and invasion were determined by flow cytometry, special kit and trans-well assays, respectively. The target association between miR-378e and circNFIX or RPN2 was confirmed by luciferase reporter assay, RNA immunoprecipitation and pull-down. Xenograft model was established to investigate the role of circNFIX in vivo. Results The expression of circNFIX was enhanced in glioma tissues and cells compared with matched controls and high expression of circNFIX indicated poor outcomes of patients. Knockdown of circNFIX led to arrest of cell cycle, inhibition of glycolysis, migration and invasion and promotion of apoptosis in glioma cells. circNFIX was a sponge of miR-378e. miR-378e overexpression suppressed cell cycle process, glycolysis, migration and invasion but promoted apoptosis. miR-378e silence abated the suppressive role of circNFIX knockdown in glioma progression. RPN2 as a target of miR-378e was positively regulated via circNFIX by competitively sponging miR-378e. Silencing circNFIX decreased glioma xenograft tumor growth by regulating miR-378e/RPN2 axis. Conclusion Knockdown of circNFIX inhibits progression of glioma in vitro and in vivo by increasing miR-378e and decreasing RPN2, providing a novel mechanism for understanding the pathogenesis of glioma.
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Affiliation(s)
- Chenyu Ding
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Zanyi Wu
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Honghai You
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Hongliang Ge
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Shufa Zheng
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Yuanxiang Lin
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Xiyue Wu
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Zhangya Lin
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China
| | - Dezhi Kang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Taijiang District, Fuzhou, 350001, Fujian, China.
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Zhu B, Ren C, Du K, Zhu H, Ai Y, Kang F, Luo Y, Liu W, Wang L, Xu Y, Jiang X, Zhang Y. Olean-28,13b-olide 2 plays a role in cisplatin-mediated apoptosis and reverses cisplatin resistance in human lung cancer through multiple signaling pathways. Biochem Pharmacol 2019; 170:113642. [PMID: 31541631 DOI: 10.1016/j.bcp.2019.113642] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 09/16/2019] [Indexed: 12/20/2022]
Abstract
Lung cancer, similar to other chronic diseases, occurs due to perturbations in multiple signaling pathways. Mono-targeted therapies are not ideal since they are not likely to be effective for the treatment and prevention of lung cancer, and are often associated with drug resistance. Therefore, the development of multi-targeted agents is required for novel lung cancer therapies. Thioredoxin reductase (TrxR or TXNRD1) is a pivotal component of the thioredoxin (Trx) system. Various types of tumor cells are able to overexpress TrxR/Trx proteins in order to maintain tumor survival, and this overexpression has been shown to be associated with clinical outcomes, including irradiation and drug resistance. Emerging evidence has indicated that oleanolic acid (OA) and its derivatives exhibit potent anticancer activity, and are able to overcome drug resistance in cancer cell lines. In the present study, it was demonstrated that a novel synthesized OA family compound, olean-28,13b-olide 2 (OLO-2), synergistically enhanced cisplatin (CDDP)-mediated apoptosis, led to the activation of caspase-3 and the generation of reactive oxygen species (ROS), induced DNA damage, and inhibited the activation of the extracellular-signal-regulated kinase (ERK), signal transducer and activator of transcription 3 (STAT3), AKT and nuclear factor-κB (NF-κB) pathways in human multidrug-resistant A549/CDDP lung adenocarcinoma cells. Subsequent analyses revealed that OLO-2 inhibited P-glycoprotein (P-gp or ABCB1) and TrxR by reducing their expression at the protein and mRNA levels, and by suppressing P-gp ATPase and TrxR activities. Further biological evaluation indicated that OLO-2 significantly reduced Trx and excision repair cross-complementary1 (ERCC1) protein expression and significantly inhibited the proliferation of drug-sensitive (A549) and multidrug-resistant (A549/CDDP) non-small cell lung cancer (NSCLC) cells, but had no effect on non-tumor lung epithelial-like cells. In addition, the present study demonstrated, for the first time, to the best of our knowledge, that overexpressing or knocking down TrxR in NSCLC cells enhanced or attenuated, respectively, the resistance of NSCLC cells against CDDP, which indicated that TrxR plays an important role in CDDP resistance and functions as a protector of NSCLC against chemotherapeutic drugs. OLO-2 treatment also exhibited up to 4.6-fold selectivity against human lung adenocarcinoma cells. Taken together, the results of the present study shed light on the drug resistance-reversing effects of OLO-2 in lung cancer cells.
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Affiliation(s)
- Bin Zhu
- Cancer Research Institute, Department of Neurosurgery, School of Basic Medical Science, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China
| | - Caiping Ren
- Cancer Research Institute, Department of Neurosurgery, School of Basic Medical Science, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China.
| | - Ke Du
- Hunan University of Chinese Medicine, Changsha, Hunan 410208, China
| | - Hecheng Zhu
- Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China
| | - Yong Ai
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Fenghua Kang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Yi Luo
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Weidong Liu
- Cancer Research Institute, Department of Neurosurgery, School of Basic Medical Science, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China
| | - Lei Wang
- Cancer Research Institute, Department of Neurosurgery, School of Basic Medical Science, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China
| | - Yang Xu
- Changsha Kexin Cancer Hospital, Changsha, Hunan 410205, China
| | - Xingjun Jiang
- Cancer Research Institute, Department of Neurosurgery, School of Basic Medical Science, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yihua Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China.
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