1
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He J, Liu D, Liu M, Tang R, Zhang D. Characterizing the role of SLC3A2 in the molecular landscape and immune microenvironment across human tumors. Front Mol Biosci 2022; 9:961410. [PMID: 35992269 PMCID: PMC9388758 DOI: 10.3389/fmolb.2022.961410] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 07/04/2022] [Indexed: 12/24/2022] Open
Abstract
Background: Inducing ferroptosis in human tumors has become a potential strategy to improve the prognosis of patients, even in those with chemotherapeutic resistance. The xCT complex is a major target for ferroptosis induction, constituted by SLC7A11 and SLC3A2. The role of SLC7A11 in cancer has been widely studied in recent years. However, related research studies for its partner SLC3A2 are still rare. Methods: Bulk transcriptome, single-cell sequencing, and immunohistochemical staining were analyzed to explore the expression distribution of SLC3A2. Clinical outcomes were referred to uncover the relationship between SLC3A2 expression and patients’ prognosis. Immune cell infiltration was estimated by multiple deconvolution algorithms. The effect of SLC3A2 on the proliferation and drug resistance of cancer cell lines was evaluated by DEPMAP. Results: Upregulated SLC3A2 may have an adverse effect on the survival of multiple cancers such as lower-grade glioma and acute myeloid leukemia. SLC3A2 expression is indispensable for multiple cell lines’ proliferation, especially for ESO51 (a cell line for esophageal cancer). In addition, SLC3A2 expression level was related to the remodeling of the immune microenvironment in cancers and some immune checkpoints such as PD-1 and PD-L1, which were potential therapeutic targets in many distinct cancers. Conclusion: Our study systematically elucidated the role of SLC3A2 in the survival of cancer patients and the potential immunotherapeutic response. Few molecular mechanisms by which SLC3A2 regulates anti-tumor immunity have been clarified in the present study, which is the main limitation. Future research into the biological mechanism could further help with targeted treatment for cancer patients.
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Affiliation(s)
- Jiajun He
- Minhang Hospital, Fudan University, Shanghai, China
| | - Dong Liu
- The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Mei Liu
- Minhang Hospital, Fudan University, Shanghai, China
| | - Rong Tang
- Shanghai Medical College, Fudan University, Shanghai, China
- *Correspondence: Rong Tang, ; Dongqing Zhang,
| | - Dongqing Zhang
- Minhang Hospital, Fudan University, Shanghai, China
- *Correspondence: Rong Tang, ; Dongqing Zhang,
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2
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Huang G, Ma L, Shen L, Lei Y, Guo L, Deng Y, Ding Y. MIF/SCL3A2 depletion inhibits the proliferation and metastasis of colorectal cancer cells via the AKT/GSK-3β pathway and cell iron death. J Cell Mol Med 2022; 26:3410-3422. [PMID: 35567291 PMCID: PMC9189354 DOI: 10.1111/jcmm.17352] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 04/17/2022] [Accepted: 04/19/2022] [Indexed: 12/15/2022] Open
Abstract
This study investigated the mechanisms of migration inhibitory factor (MIF) and solute carrier family 3 member 2 (SLC3A2) in colorectal cancer progression. The levels of MIF and SLC3A2 expression in cells were measured by RT-qPCR. SW480 and SW620 cells were transfected with sh-MIF and sh-SLC3A2, respectively. MIF, SLC3A2, GPX4, E-cadherin and N-cadherin expression were detected by immunofluorescence (IF). CCK8 and Transwell assays were performed to detect cell proliferation and migration. Co-immunoprecipitation (CoIP) was used to measure the binding activity of MIF and SLC3A2. Finally, a nude mouse tumorigenicity assay was used to confirm the functions of MIF and SLC3A2 in colorectal cancer. Results showed that the levels of MIF and SLC3A2 expression were up-regulated in colorectal cancer cells. Inhibition of MIF or SLC3A2 expression prevented cell proliferation, migration, epithelial-mesenchymal transition (EMT) and invasion. In addition, knockdown of MIF and SLC3A2 promoted iron death in SW480 and SW620 cells. CoIP results showed that MIF and SLC3A2 directly interact with each other. Knockdown of both MIF and SLC3A2 inhibited tumour growth and metastasis via the AKT/GSK-3β pathway in vivo. The Akt/GSK-3β pathway was found to participate in regulating MIF and SLC3A2 both in vivo and in vitro. MIF and SLC3A2 might be potential biomarkers for monitoring the treatment of colorectal cancer.
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Affiliation(s)
- Guan Huang
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Department of Pathology, Shenzhen Longgang Central Hospital, Shenzhen, China
| | - Lili Ma
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Lan Shen
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yan Lei
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Lili Guo
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yongjian Deng
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
| | - Yanqing Ding
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou, China
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3
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Wang S, Han H, Meng J, Yang W, Lv Y, Wen X. Long non-coding RNA SNHG1 suppresses cell migration and invasion and upregulates SOCS2 in human gastric carcinoma. Biochem Biophys Rep 2021; 27:101052. [PMID: 34179518 PMCID: PMC8214191 DOI: 10.1016/j.bbrep.2021.101052] [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: 01/18/2021] [Revised: 05/30/2021] [Accepted: 06/07/2021] [Indexed: 11/23/2022] Open
Abstract
Gastric carcinoma (GC) is one of the most common malignancies and the third leading cause of cancer-related deaths worldwide. Long noncoding RNAs (lncRNAs) may be an important class of functional regulators involved in human gastric cancers development. In this study, we investigated the clinical significance and function of lncRNA SNHG1 in GC. SNHG1 was significantly downregulated in GC tumor tissues compared with adjacent noncancerous tissues. Overexpression of SNHG1 in BGC-823 cells remarkably inhibited not only cell proliferation, migration, invasion in vitro, but also tumorigenesis and lung metastasis in the chick embryo chorioallantoic membrane (CAM) assay in vivo. Conversely, inhibition of SNHG1 by transfection of siRNA in AGS cells resulted in opposite phenotype changes. Mechanically, SNHG1 was found interacted with ILF3, NONO and SFPQ. RNA-seq combined with bioinformatic analysis identified a serial of downstream genes of SNHG1, including SOCS2, LOXL2, LTBP3, LTBP4. Overexpression of SNHG1 induced SOCS2 expression whereas knockdown of SNHG1 decreased SOCS2 expression. In addition, knockdown of SNHG1 promoted the activation of JAK2/STAT signaling pathway. Taken together, our data suggested that SNHG1 suppressed aggressive phenotype of GC cells and regulated SOCS2/JAK2/STAT pathway. SNHG1 was significantly downregulated in GC tumor tissues. SNHG1 suppressed proliferation and migration of GC cells. SNHG1 localized in nucleus of GC cells and interacted with ILF3, NONO and SFPQ. SNHG1 regulate SOCS2 expression in GC cell lines and JAK2/STAT signaling pathway in AGS cells.
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Affiliation(s)
- Shanshan Wang
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Beijing, China
| | - Haibo Han
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Beijing, China
| | - Junling Meng
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Beijing, China
| | - Wei Yang
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Beijing, China
| | - Yunwei Lv
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Beijing, China
| | - Xianzi Wen
- Department of Clinical Laboratory, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Beijing, China
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4
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Pellizzari G, Martinez O, Crescioli S, Page R, Di Meo A, Mele S, Chiaruttini G, Hoinka J, Batruch I, Prassas I, Grandits M, López-Abente J, Bugallo-Blanco E, Ward M, Bax HJ, French E, Cheung A, Lombardi S, Figini M, Lacy KE, Diamandis EP, Josephs DH, Spicer J, Papa S, Karagiannis SN. Immunotherapy using IgE or CAR T cells for cancers expressing the tumor antigen SLC3A2. J Immunother Cancer 2021; 9:jitc-2020-002140. [PMID: 34112739 PMCID: PMC8194339 DOI: 10.1136/jitc-2020-002140] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2021] [Indexed: 01/21/2023] Open
Abstract
Background Cancer immunotherapy with monoclonal antibodies and chimeric antigen receptor (CAR) T cell therapies can benefit from selection of new targets with high levels of tumor specificity and from early assessments of efficacy and safety to derisk potential therapies. Methods Employing mass spectrometry, bioinformatics, immuno-mass spectrometry and CRISPR/Cas9 we identified the target of the tumor-specific SF-25 antibody. We engineered IgE and CAR T cell immunotherapies derived from the SF-25 clone and evaluated potential for cancer therapy. Results We identified the target of the SF-25 clone as the tumor-associated antigen SLC3A2, a cell surface protein with key roles in cancer metabolism. We generated IgE monoclonal antibody, and CAR T cell immunotherapies each recognizing SLC3A2. In concordance with preclinical and, more recently, clinical findings with the first-in-class IgE antibody MOv18 (recognizing the tumor-associated antigen Folate Receptor alpha), SF-25 IgE potentiated Fc-mediated effector functions against cancer cells in vitro and restricted human tumor xenograft growth in mice engrafted with human effector cells. The antibody did not trigger basophil activation in cancer patient blood ex vivo, suggesting failure to induce type I hypersensitivity, and supporting safe therapeutic administration. SLC3A2-specific CAR T cells demonstrated cytotoxicity against tumor cells, stimulated interferon-γ and interleukin-2 production in vitro. In vivo SLC3A2-specific CAR T cells significantly increased overall survival and reduced growth of subcutaneous PC3-LN3-luciferase xenografts. No weight loss, manifestations of cytokine release syndrome or graft-versus-host disease, were detected. Conclusions These findings identify efficacious and potentially safe tumor-targeting of SLC3A2 with novel immune-activating antibody and genetically modified cell therapies.
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Affiliation(s)
- Giulia Pellizzari
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK
| | - Olivier Martinez
- Immunoengineering Group, King's College London, London, England, UK
| | - Silvia Crescioli
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK
| | - Robert Page
- Immunoengineering Group, King's College London, London, England, UK
| | - Ashley Di Meo
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Silvia Mele
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK
| | - Giulia Chiaruttini
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK
| | - Jan Hoinka
- Computational Biology Branch, National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, USA
| | - Ihor Batruch
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Ioannis Prassas
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.,Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Melanie Grandits
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK
| | - Jacobo López-Abente
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK
| | | | | | - Heather J Bax
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK
| | - Elise French
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK
| | - Anthony Cheung
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK.,Breast Cancer Now Research Unit, School of Cancer and Pharmaceutical Sciences, King's College London, London, England, UK
| | - Sara Lombardi
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK.,School of Cancer and Pharmaceutical Sciences, King's College London, London, England, UK
| | - Mariangela Figini
- Biomarker Unit, Dipartimento di Ricerca Applicata e Sviluppo Tecnologico (DRAST), Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Katie E Lacy
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK
| | - Eleftherios P Diamandis
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.,Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.,Department of Clinical Biochemistry, University Health Network, Toronto, Ontario, Canada
| | - Debra H Josephs
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK.,Department of Medical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, England, UK
| | - James Spicer
- School of Cancer and Pharmaceutical Sciences, King's College London, London, England, UK
| | - Sophie Papa
- Immunoengineering Group, King's College London, London, England, UK .,Department of Medical Oncology, Guy's and St Thomas' NHS Foundation Trust, London, England, UK
| | - Sophia N Karagiannis
- St John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, London, England, UK .,Breast Cancer Now Research Unit, School of Cancer and Pharmaceutical Sciences, King's College London, London, England, UK
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5
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The heavy chain of 4F2 antigen promote prostate cancer progression via SKP-2. Sci Rep 2021; 11:11478. [PMID: 34075107 PMCID: PMC8169706 DOI: 10.1038/s41598-021-90748-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 05/05/2021] [Indexed: 11/24/2022] Open
Abstract
The 4F2 cell-surface antigen heavy chain (4F2hc) forms a heterodimeric complex with L-type amino acid transporter 1 (LAT1) and transports large neutral essential amino acids. However, in contrast to the traditional role of LAT1 in various cancers, the role of 4F2hc has largely remained unknown. The role of 4F2hc in prostate cancer was studied. Treatment of C4-2 cells with si4F2hc was found to suppress cellular growth, migratory and invasive abilities, with this effect occurring through the cell cycle, with a significant decrease in S phase and a significant increase in G0/G1 phase, suggesting cell cycle arrest. In addition, it was proven by RNA seq that the key to 4F2hc’s impact on cancer is SKP2. si4F2hc upregulates the protein expression of cyclin-dependent kinase inhibitors (P21cip1, P27kip1) through the downstream target SKP2. Furthermore, the expression of 4F2hc and LAT1 in prostate cancer cells suggests the importance of 4F2hc. Multivariate analysis showed that high 4F2hc expression was an independent prognostic factor for progression-free survival (HR 11.54, p = 0.0357). High 4F2hc was related to the clinical tumour stage (p = 0.0255) and Gleason score (p = 0.0035). Collectively, 4F2hc contributed significantly to prostate cancer (PC) progression. 4F2hc may be a novel marker and therapeutic target in PC.
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6
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Cheng J, He J, Wang S, Zhao Z, Yan H, Guan Q, Li J, Guo Z, Ao L. Biased Influences of Low Tumor Purity on Mutation Detection in Cancer. Front Mol Biosci 2021; 7:533196. [PMID: 33425983 PMCID: PMC7785586 DOI: 10.3389/fmolb.2020.533196] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 10/22/2020] [Indexed: 01/21/2023] Open
Abstract
The non-cancerous components in tumor tissues, e.g., infiltrating stromal cells and immune cells, dilute tumor purity and might confound genomic mutation profile analyses and the identification of pathological biomarkers. It is necessary to systematically evaluate the influence of tumor purity. Here, using public gastric cancer samples from The Cancer Genome Atlas (TCGA), we firstly showed that numbers of mutation, separately called by four algorithms, were significant positively correlated with tumor purities (all p < 0.05, Spearman rank correlation). Similar results were also observed in other nine cancers from TCGA. Notably, the result was further confirmed by six in-house samples from two gastric cancer patients and five in-house samples from two colorectal cancer patients with different tumor purities. Furthermore, the metastasis mechanism of gastric cancer may be incorrectly characterized as numbers of mutation and tumor purities of 248 lymph node metastatic (N + M0) samples were both significantly lower than those of 121 non-metastatic (N0M0) samples (p < 0.05, Wilcoxon rank-sum test). Similar phenomena were also observed that tumor purities could confound the analysis of histological subtypes of cancer and the identification of microsatellite instability status (MSI) in both gastric and colon cancer. Finally, we suggested that the higher tumor purity, such as above 70%, rather than 60%, could be better to meet the requirement of mutation calling. In conclusion, the influence of tumor purity on the genomic mutation profile and pathological analyses should be fully considered in the further study.
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Affiliation(s)
- Jun Cheng
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Jun He
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Shanshan Wang
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Zhangxiang Zhao
- Department of Systems Biology, College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Haidan Yan
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Qingzhou Guan
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Jing Li
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Zheng Guo
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Lu Ao
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
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7
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Liang J, Sun Z. Overexpression of membranal SLC3A2 regulates the proliferation of oral squamous cancer cells and affects the prognosis of oral cancer patients. J Oral Pathol Med 2021; 50:371-377. [PMID: 33184944 DOI: 10.1111/jop.13132] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 09/17/2020] [Accepted: 09/23/2020] [Indexed: 01/29/2023]
Affiliation(s)
- Jiayu Liang
- Department of Oral Medicine Affiliated Hospital of Stomatology Nanjing Medical University Nanjing China
| | - Zhida Sun
- Department of Oral Medicine Affiliated Hospital of Stomatology Nanjing Medical University Nanjing China
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8
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Li G, Ao S, Hou J, Lyu G. Low expression of miR-125a-5p is associated with poor prognosis in patients with gastric cancer. Oncol Lett 2019; 18:1483-1490. [PMID: 31423214 PMCID: PMC6607383 DOI: 10.3892/ol.2019.10423] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 04/16/2019] [Indexed: 12/19/2022] Open
Abstract
microRNAs (miRs) serve critical roles in tumor progression. Low expression of miR-125a in gastric carcinoma (GC) may promote tumor development. In the present study, low expression of miR-125a was confirmed in cancer tissues using The Cancer Genome Atlas database. Additionally, the expression and clinical significance of miR-125a-5p was investigated using reverse transcription-quantitative PCR in 150 cases of GC. The results of the present study demonstrated that the level of miR-125a-5p expression was decreased in GC biopsies compared with that in matched adjacent normal tissues. Low expression of miR-125a-5p was associated with increased tumor diameter, high Ki67 expression and poor overall survival of patients with GC. Multivariate survival analysis demonstrated that low miR-125a-5p expression may be used as an independent prognostic factor for patients with GC. However, no effects on the cell viability in a Cell Counting kit-8 assay, and cell migration and invasion in Transwell assays were detected in response to treatment using miR-125a-5p mimics or inhibitors in vitro. Therefore, the results of the present study provide evidence that low expression of miR-125a-5p may be associated with a poor prognosis, suggesting its value as a tumor biomarker for patients with GC.
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Affiliation(s)
- Guan Li
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Sheng Ao
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Jianing Hou
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Guoqing Lyu
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
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9
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Cui Y, Qin L, Tian D, Wang T, Fan L, Zhang P, Wang Z. ZEB1 Promotes Chemoresistance to Cisplatin in Ovarian Cancer Cells by Suppressing SLC3A2. Chemotherapy 2018; 63:262-271. [PMID: 30481785 DOI: 10.1159/000493864] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 09/14/2018] [Indexed: 11/19/2022]
Abstract
Ovarian cancer is one of the deadliest gynecological malignancies in women. Chemoresistance has been a major obstacle for ovarian cancer treatment. Zinc finger E-box-binding homeobox 1 (ZEB1) is an important regulator of tumor development in various types of cancer. Abnormal expression of SLC3A2 (CD98hc), a type 2 transmembrane cell surface molecule, has been described in several cancers. This study was designed to investigate the role of ZEB1 and SLC3A2 in the chemoresistance to cisplatin in ovarian cancer cells. We found that ZEB1 was increased in cisplatin-resistant SKOV3/DPP cells. Downregulation of ZEB1 significantly decreased cell viability in response to cisplatin, increased cis-platin-induced apoptosis, and decreased migration and invasion in the presence of cisplatin. In addition, downregulation of ZEB1 decreased the volume and weight of implanted tumors. SLC3A2 was decreased in cisplatin-resistant SKOV3/DPP cells. Upregulation of SLC3A2 significantly decreased cell viability in response to cisplatin, increased cisplatin-induced apoptosis, and decreased migration and invasion in the presence of cisplatin. Moreover, upregulation of SLC3A2 decreased the volume and weight of implanted tumors. Downregulation of ZEB1 resulted in a significant increase of SLC3A2 expression. Moreover, downregulation of SLC3A2 significantly inhibited ZEB1 knockdown-mediated inhibition of cisplatin-resistance. ZEB1-mediated regulation of SLC3A2 was involved in the chemoresistance to cisplatin in ovarian cancer cells. Overall, we provide new insights into the mechanism of chemoresistance to cisplatin in ovarian cancer cells. ZEB1/SLC3A2 may be promising therapeutic targets for enhancement of the sensitivity of ovarian cancer cells to cisplatin-mediated chemotherapy.
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Affiliation(s)
- Yajie Cui
- Department of Obstetrics and Gynecology, Xi'an No. 4 Hospital, Xi'an, China
| | - Li Qin
- Department of Obstetrics and Gynecology, Shaanxi Province People's Hospital, Xi'an, China
| | - Defu Tian
- Department of General Surgery, Shaanxi Provincial Fourth People's Hospital, Xi'an, China
| | - Ting Wang
- Northwest Women and Children's Hospital, Xi'an, China
| | - Lijing Fan
- Department of Obstetrics and Gynecology, Xi'an No. 1 Hospital, Xi'an, China
| | - Peilian Zhang
- Department of Obstetrics and Gynecology, Xi'an No. 1 Hospital, Xi'an, China
| | - Zhongqi Wang
- Department of Gynecology, An Kang Central Hospital, An Kang, China,
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