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Ji T, Ye L, Xi E, Liu Y, Wang X, Wang S. Sinensetin Inhibits Angiogenesis in Lung Adenocarcinoma via the miR-374c-5p/VEGF-A/VEGFR-2/AKT Axis. Cell Biochem Biophys 2024:10.1007/s12013-024-01352-3. [PMID: 39030333 DOI: 10.1007/s12013-024-01352-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/04/2024] [Indexed: 07/21/2024]
Abstract
Sinensetin is a product isolated from Orthosiphon aristatus, and its antitumor activities have been well established. This study focused on the role and mechanism of sinensetin in lung adenocarcinoma (LUAD). LUAD cells were treated with various concentrations of sinensetin. The proliferation, migration, invasion, and angiogenesis of LUAD cells were detected using colony formation, transwell, and tube formation assays, respectively. The protein levels of VEGF-A, VEGFR-2, and phosphorylated AKT (ser473) were measured by western blotting. The targeted relationship between VEGF-A and miR-374c-5p was verified by luciferase reporter assay. BALB/c nude mice inoculated with A549 cells were treated with sinensetin (40 mg/kg/day) by gavage for 21 days to investigate the effect of sinensetin on tumor growth and angiogenesis in vivo. We found that sinensetin reduced proliferation, migration, invasion, angiogenesis, and cancer stem characteristics of LUAD cells. Sinensetin also suppressed LUAD tumor growth and angiogenesis in vivo. Sinensetin downregulated VEGF-A expression in LUAD cells by enhancing miR-374c-5p expression. MiR-374c-5p inhibited the VEGF-A/VEGFR-2/AKT pathway in LUAD cells. The antitumor effect of sinensetin was reversed by overexpression of VEGF-A or inhibition of miR-374c-5p. Overall, sinensetin upregulates miR-374c-5p to inhibit the VEGF-A/VEGFR-2/AKT pathway, thereby exerting antitumor effect on LUAD.
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Affiliation(s)
- Tao Ji
- Department of Cardiothoracic Surgery, General Hospital of Central Theater Command, Wuhan, 430070, China
| | - Lin Ye
- Department of Cardiothoracic Surgery, General Hospital of Central Theater Command, Wuhan, 430070, China
| | - Erping Xi
- Department of Cardiothoracic Surgery, General Hospital of Central Theater Command, Wuhan, 430070, China
| | - Ying Liu
- Department of Cardiothoracic Surgery, General Hospital of Central Theater Command, Wuhan, 430070, China
| | - Xiumei Wang
- Department of Cardiothoracic Surgery, General Hospital of Central Theater Command, Wuhan, 430070, China
| | - Sha Wang
- Department of Dermatology, General Hospital of Central Theater Command, Wuhan, 430070, China.
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2
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Zhang J, Duan B, Li F, Jing X, Li R, Cai S, Cao L, Jiang Q, Zhou J, Zhou J, Qin Y, Wang X, Tong D, Huang C. SETD7 Promotes Cell Proliferation and Migration via Methylation-mediated TAF7 in Clear Cell Renal Cell Carcinoma. Int J Biol Sci 2024; 20:3008-3027. [PMID: 38904013 PMCID: PMC11186372 DOI: 10.7150/ijbs.93201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/09/2024] [Indexed: 06/22/2024] Open
Abstract
SET domain containing 7(SETD7), a member of histone methyltransferases, is abnormally expressed in multiple tumor types. However, the biological function and underlying molecular mechanism of SETD7 in clear cell renal cell carcinoma (ccRCC) remain unclear. Here, we explored the biological effects of SETD7-TAF7-CCNA2 axis on proliferation and metastasis in ccRCC. We identified both SETD7 and TAF7 were up-regulated and significantly promoted the proliferation and migration of ccRCC cells. Concurrently, there was a significant positive correlation between the expression of SETD7 and TAF7, and the two were colocalized in the nucleus. Mechanistically, SETD7 methylates TAF7 at K5 and K300 sites, resulting in the deubiquitination and stabilization of TAF7. Furthermore, re-expression of TAF7 could partially restore SETD7 knockdown inhibited ccRCC cells proliferation and migration. In addition, TAF7 transcriptionally activated to drive the expression of cyclin A2 (CCNA2). And more importantly, the methylation of TAF7 at K5 and K300 sites exhibited higher transcriptional activity of CCNA2, which promotes formation and progression of ccRCC. Our findings reveal a unique mechanism that SETD7 mediated TAF7 methylation in regulating transcriptional activation of CCNA2 in ccRCC progression and provide a basis for developing effective therapeutic strategies by targeting members of SETD7-TAF7-CCNA2 axis.
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Affiliation(s)
- Jinyuan Zhang
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
| | - Baojun Duan
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
- Department of Medical Oncology of Shaanxi Provincial People's Hospital, Xi'an 710068, China
| | - Fang Li
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
| | - Xintao Jing
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
| | - Rufeng Li
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
| | - Shuang Cai
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
| | - Li Cao
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
| | - Qiuyu Jiang
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
| | - Jing Zhou
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
| | - Jiancheng Zhou
- Department of Urology of Shaanxi Provincial People's Hospital, Xi'an 710068, China
| | - Yannan Qin
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
| | - Xiaofei Wang
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
| | - Dongdong Tong
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
| | - Chen Huang
- Institute of Genetics and Development Biology, Translational Medcine Institute, Xi'an Jiaotong University, Xi'an 710301, China
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Zhang D, Zhao F, Liu H, Guo P, Li Z, Li S. FABP6 serves as a new therapeutic target in esophageal tumor. Aging (Albany NY) 2024; 16:1640-1662. [PMID: 38277205 PMCID: PMC10866426 DOI: 10.18632/aging.205448] [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: 09/08/2023] [Accepted: 12/04/2023] [Indexed: 01/27/2024]
Abstract
BACKGROUND Esophageal cancer is one of the most common malignant tumors with high incidence and mortality rates. Despite the continuous development of treatment options, the prognosis for esophageal cancer patients remains poor. Therefore, there is an urgent need for new diagnostic and therapeutic targets in clinical practice to improve the survival of patients with esophageal cancer. METHODS In this study, we conducted a comprehensive scRNA-seq analysis of the tumor microenvironment in primary esophageal tumors to elucidate cell composition and heterogeneity. Using Seurat, we identified eight clusters, encompassing non-immune cells (fibroblasts, myofibroblasts, endothelial cells, and epithelial cells) and immunocytes (myeloid-derived cells, T cells, B cells, and plasma cells). Compared to normal tissues, tumors exhibited an increased proportion of epithelial cells and alterations in immune cell infiltration. Analysis of epithelial cells revealed a cluster (cluster 0) with a high differentiation score and early distribution, suggesting its importance as a precursor cell. RESULTS Cluster 0 was characterized by high expression of FABP6, indicating a potential role in fatty acid metabolism and tumor growth. T cell analysis revealed shifts in the balance between Treg and CD8+ effector T cells in tumor tissues. Cellular communication analysis identified increased interactions between FABP6+ tumor cells and T cells, with the involvement of the MIF-related pathway and the CD74-CD44 interaction. This study provides insights into the cellular landscape and immune interactions within esophageal tumors, contributing to a better understanding of tumor heterogeneity and potential therapeutic targets.
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Affiliation(s)
- Dengfeng Zhang
- Department of Thoracic Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Fangchao Zhao
- Department of Thoracic Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Haitao Liu
- College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia 010031, China
| | - Pengfei Guo
- Department of Thoracic Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Zhirong Li
- Department of Thoracic Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
| | - Shujun Li
- Department of Thoracic Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, China
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Ding B, Lou W, Fan W, Pan J. Exosomal miR-374c-5p derived from mesenchymal stem cells suppresses epithelial-mesenchymal transition of hepatocellular carcinoma via the LIMK1-Wnt/β-catenin axis. ENVIRONMENTAL TOXICOLOGY 2023; 38:1038-1052. [PMID: 36722453 DOI: 10.1002/tox.23746] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Metastasis is a leading cause to treatment failure in hepatocellular carcinoma (HCC) patients. Exosomes act as pivotal mediators in communication between different cells and exert effects on recipient cells by delivering bioactive cargoes, such as microRNAs (miRNAs). MiRNAs function in multiple steps of HCC development, including metastasis. MiR-374c-5p was previously identified as a tumor suppressor in some malignancies, while the current knowledge of its role in HCC metastasis is still limited. Herein, miR-374c-5p was found to be downregulated in HCC cell lines and clinical samples, and positively related with favorable prognosis in HCC patients. MiR-374c-5p transferred by exosomes derived from bone marrow mesenchymal stem cell (BMSC) suppressed migration, invasion and proliferation of HCC cells. LIMK1 was verified as downstream target gene of miR-374c-5p. Knockdown of LIMK1 reduced invasion, migration and proliferation of HCC cells, whereas overexpression functioned oppositely. The miR-374c-5p/LIMK1 axis suppressed epithelial-mesenchymal transition (EMT) by inactivating Wnt/β-catenin pathway. In addition, miR-374c-5p was downregulated and LIMK1 upregulated in TGF-β1 induced EMT. This EMT model could be reversed by LIMK1 silencing or miR-374c-5p overexpression. These results suggest that exo-miR-374c-5p suppresses EMT via targeting LIMK1-Wnt/β-catenin axis and the axis is involved in TGF-β1 induced metastasis of HCC, thereby identifying miR-374c-5p as a potential target for HCC treatment.
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Affiliation(s)
- Bisha Ding
- Cancer Center, Department of Medical Oncology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Zhejiang, Hangzhou, China
| | - Weiyang Lou
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Zhejiang, Hangzhou, China
| | - Weimin Fan
- College of Medicine, Zhejiang University, Zhejiang, Hangzhou, China
| | - Jie Pan
- School of Basic Medical Sciences and Forensic Medicine, Hangzhou Medical College, Zhejiang, Hangzhou, China
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5
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Geng G, Li Q, Guo X, Ni Q, Xu Y, Ma Z, Wang Y, Ming M. FOXO3a‑modulated DEPDC1 promotes malignant progression of nephroblastoma via the Wnt/β‑catenin signaling pathway. Mol Med Rep 2022; 26:272. [PMID: 35795985 PMCID: PMC9309542 DOI: 10.3892/mmr.2022.12788] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/27/2022] [Indexed: 11/22/2022] Open
Abstract
DEP domain containing 1 (DEPDC1) and forkhead box transcription factor 3a (FOXO3a) serve a role in tumor cells. To the best of our knowledge, however, the expression of DEPDC1 and FOXO3a in nephroblastoma and their role and potential mechanisms in nephroblastoma cells have not been reported. The aim of the present study was to characterize the expression of DEPDC1 and FOXO3a in nephroblastoma, as well as the underlying mechanisms. The expression levels of DEPDC1 and FOXO3a were detected using reverse transcription-quantitative PCR and western blotting. Cell viability, proliferation, invasion and migration were detected using Cell Counting Kit-8, colony formation, Transwell and wound healing assays, respectively. The activity of DEPDC1 promoter was detected by dual-luciferase reporter assay and the association between FOXO3a and DEPDC1 was detected using immunoprecipitation. DEPDC1 expression was significantly increased in nephroblastoma cells, particularly WiT49 cells. Compared with the negative control, DEPDC1 knockdown significantly inhibited proliferation, invasion and migration of WiT49 cells, while DEPDC1 overexpression (Ov) reversed these effects. By contrast, expression of FOXO3a was decreased in WiT49 cells and immunoprecipitation showed that FOXO3a bound to the DEPDC1 promoter. Ov-FOXO3a inhibited WiT49 cell proliferation, invasion and migration, as well as protein expression levels of phosphorylated-glycogen synthase kinase-3β, Wnt3a and β-catenin, while DEPDC1 Ov reversed the inhibitory effects of FOXO3a Ov on WiT49 cells. In conclusion, DEPDC1 promoted malignant progression of nephroblastoma via the Wnt/β-catenin signaling pathway; this may be regulated by FOXO3a.
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Affiliation(s)
- Geng Geng
- Department of Pediatric Surgery, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
| | - Qinghao Li
- Department of Pediatric Surgery, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
| | - Xingqing Guo
- Department of Pediatric Respirology and Cardiology, The Affiliated Hospital of Qingdao University, Qingdao 266000, P.R. China
| | - Qingbin Ni
- Department of Pediatric Surgery, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
| | - Yongtao Xu
- Department of Pediatric Surgery, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
| | - Zhaolong Ma
- Department of Pediatric Surgery, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
| | - Yongjin Wang
- Department of Pediatric Surgery, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
| | - Ming Ming
- Department of Pediatric Surgery, Taian City Central Hospital, Taian, Shandong 271000, P.R. China
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6
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Diminished miR-374c-5p negatively regulates IL (interleukin)-6 in unexplained recurrent spontaneous abortion. J Mol Med (Berl) 2022; 100:1043-1056. [PMID: 35689099 DOI: 10.1007/s00109-022-02178-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 01/02/2022] [Accepted: 01/14/2022] [Indexed: 11/27/2022]
Abstract
Unexplained recurrent spontaneous abortion (URSA) is commonly observed, and seriously affects women's reproductive health. Excessive interleukin-6 (IL-6) production has been shown to frequently occur and relate to URSA pathogenesis. In this study, the miRNA expression profile in peripheral blood mononuclear cells (PBMCs) from URSA patients and normal pregnant (NP) women was assessed by miRNA microarray and real-time quantitative reverse-transcription polymerase chain reaction (qPCR). MiRNA target prediction tools and luciferase reporter assay were used to detect direct binding between miRNAs and IL6. Functional study of administering anti-IL-6 neutralizing antibody and miR-374c-5p mimics to an URSA animal model was performed to evaluate embryo resorption rates. In the results, compared with NP women, the expression of IL-6 increased markedly in PBMCs and decidual tissues at both mRNA and protein levels, while miR-374c-5p expression decreased significantly. Prediction software and luciferase reporter assay showed that miR-374c-5p binds with IL6 3'UTR via the complementary bases. Transfection of miR-374c-5p mimics into an in vitro HeLa cell line significantly downregulated the expression of IL-6, while transfection of the miR-374c-5p inhibitor induced an opposite result. In the URSA mouse model, miR-374c-5p overexpression reduced the embryo resorption rate significantly, accompanied with decreased expression of IL-6 in the decidua. To sum up, downregulated miR-374c-5p was involved in the pathogenesis of URSA by enhancing IL-6 expression. Modulation of miR-374c-5p expression may be used to regulate IL-6 production for the treatment of URSA.
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7
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Yang G, Xiog Y, Wang G, Li W, Tang T, Sun J, Li J. miR‑374c‑5p regulates PTTG1 and inhibits cell growth and metastasis in hepatocellular carcinoma by regulating epithelial‑mesenchymal transition. Mol Med Rep 2022; 25:148. [PMID: 35234260 PMCID: PMC8915393 DOI: 10.3892/mmr.2022.12664] [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: 10/12/2021] [Accepted: 02/15/2022] [Indexed: 11/25/2022] Open
Abstract
A large number of studies have reported that microRNA (miR)-374c-5p plays an important role in the occurrence and development of malignant tumors, but there is no research on the role of miR-374c-5p in hepatocellular carcinoma (HCC). The aim of the present study was to investigate the role of miR-374c-5p in HCC and the underlying molecular mechanism. The expression of miR-374c-5p in HCC tissues and HCC cell lines was analyzed via reverse transcription-quantitative PCR. The association between miR-374c-5p and clinical pathology was also analyzed in patients with HCC. Kaplan-Meier analysis and Cox multivariate analysis were used to evaluate the prognostic significance of miR-374c-5p in HCC. The biological functions of miR-374c-5p, including cell proliferation, migration and invasion and its potential molecular mechanism were analyzed in vivo and in vitro. In addition, the molecular mechanism of miR-374c-5p in HCC was further explored. The results demonstrated that miR-374c-5p expression was lower in HCC than in matched adjacent tissue samples. Patients with low expression of miR-374c-5p had poor prognosis and short survival time. Overexpression of miR-374c-5p inhibited HCC cell proliferation, migration and invasion in vitro. In vivo, it was found that overexpression of miR-374c-5p significantly inhibited the growth and proliferation of HCC cells. Dual-luciferase reporter assays verified that miR-374c-5p directly targets the 3′-untranslated region of pituitary tumor-transforming 1 (PTTG1) and regulates PTTG1 expression. In general, it was revealed that miR-374c-5p regulates the malignant biological behavior of HCC through PTTG1, thereby affecting epithelial-mesenchymal transition. Thus, miR-374c-5p is a potential biological indicator to predict poor prognosis in patients with HCC.
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Affiliation(s)
- Gang Yang
- First Clinical Medical College, Jinan University, Tianhe, Guangzhou, Guangdong 510632, P.R. China
| | - Yongfu Xiog
- Department of Hepatobiliary Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Guan Wang
- Physical Examination Center, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Weinan Li
- Department of Hepatobiliary Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Tao Tang
- Department of Hepatobiliary Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Ji Sun
- Department of Hepatobiliary Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Jingdong Li
- First Clinical Medical College, Jinan University, Tianhe, Guangzhou, Guangdong 510632, P.R. China
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Identification of MicroRNAs as Potential Blood-Based Biomarkers for Diagnosis and Therapeutic Monitoring of Active Tuberculosis. Diagnostics (Basel) 2022; 12:diagnostics12020369. [PMID: 35204460 PMCID: PMC8871062 DOI: 10.3390/diagnostics12020369] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/27/2022] [Accepted: 01/29/2022] [Indexed: 02/04/2023] Open
Abstract
Early diagnosis increases the treatment success rate for active tuberculosis (ATB) and decreases mortality. MicroRNAs (miRNAs) have been studied as blood-based markers of several infectious diseases. We performed miRNA profiling to identify differentially expressed (DE) miRNAs using whole blood samples from 10 healthy controls (HCs), 15 subjects with latent tuberculosis infection (LTBI), and 12 patients with ATB, and investigated the expression of the top six miRNAs at diagnosis and over the treatment period in addition to performing miRNA-target gene network and gene ontology analyses. miRNA profiling identified 84 DE miRNAs in patients with ATB, including 80 upregulated and four downregulated miRNAs. Receiver operating characteristic curves of the top six miRNAs exhibited excellent distinguishing efficiency with an area under curve (AUC) value > 0.85. Among them, miR-199a-3p and miR-6886-3p can differentiate between ATB and LTBI. Anti-TB treatment restored the levels of miR-199b-3p, miR-199a-3p, miR-16-5p, and miR-374c-5p to HC levels. Furthermore, 108 predicted target genes were related to the regulation of cellular amide metabolism, intrinsic apoptotic signaling, translation, transforming growth factor beta receptor signaling, and cysteine-type endopeptidase activity. The DE miRNAs identified herein are potential biomarkers for diagnosis and therapeutic monitoring in ATB.
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Zou R, Loke SY, Tang YC, Too HP, Zhou L, Lee ASG, Hartman M. Development and validation of a circulating microRNA panel for the early detection of breast cancer. Br J Cancer 2022; 126:472-481. [PMID: 35013577 PMCID: PMC8810862 DOI: 10.1038/s41416-021-01593-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/05/2021] [Accepted: 10/06/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Mammography is widely used for breast cancer screening but suffers from a high false-positive rate. Here, we perform the largest comprehensive, multi-center study to date involving diverse ethnic groups, for the identification of circulating miRNAs for breast cancer screening. METHODS This study had a discovery phase (n = 289) and two validation phases (n = 374 and n = 379). Quantitative PCR profiling of 324 miRNAs was performed on serum samples from breast cancer (all stages) and healthy subjects to identify miRNA biomarkers. Two-fold cross-validation was used for building and optimising breast cancer-associated miRNA panels. An optimal panel was validated in cohorts with Caucasian and Asian samples. Diagnostic ability was evaluated using area under the curve (AUC) analysis. RESULTS The study identified and validated 30 miRNAs dysregulated in breast cancer. An optimised eight-miRNA panel showed consistent performance in all cohorts and was successfully validated with AUC, accuracy, sensitivity, and specificity of 0.915, 82.3%, 72.2% and 91.5%, respectively. The prediction model detected breast cancer in both Caucasian and Asian populations with AUCs ranging from 0.880 to 0.973, including pre-malignant lesions (stage 0; AUC of 0.831) and early-stage (stages I-II) cancers (AUC of 0.916). CONCLUSIONS Our panel can potentially be used for breast cancer screening, in conjunction with mammography.
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Affiliation(s)
- Ruiyang Zou
- Department of Research and Development, MiRXES Lab, Singapore, Singapore
| | - Sau Yeen Loke
- Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, Singapore, Singapore
| | - Yew Chung Tang
- Department of Research and Development, MiRXES Lab, Singapore, Singapore
| | - Heng-Phon Too
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- NUS Center for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lihan Zhou
- Department of Research and Development, MiRXES Lab, Singapore, Singapore.
| | - Ann S G Lee
- Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, Singapore, Singapore.
- SingHealth Duke-NUS Oncology Academic Clinical Programme, Duke-NUS Medical School, Singapore, Singapore.
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
| | - Mikael Hartman
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore
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10
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Yue Y, Deng P, Xiao H, Tan M, Wang H, Tian L, Xie J, Chen M, Luo Y, Wang L, Liang Y, Pi H, Zhou Z, Yu Z. N6-methyladenosine-mediated downregulation of miR-374c-5p promotes cadmium-induced cell proliferation and metastasis by targeting GRM3 in breast cancer cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 229:113085. [PMID: 34920184 DOI: 10.1016/j.ecoenv.2021.113085] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 12/01/2021] [Accepted: 12/11/2021] [Indexed: 06/14/2023]
Abstract
Cadmium (Cd) is a toxic heavy metal that can facilitate the development and progression of breast cancer (BC). Emerging evidence has indicated that the progression of Cd-exposed BC is related to the dysregulation of microRNAs (miRNAs). The purpose of our study was to investigate the expression pattern and underlying mechanisms of miR-374c-5p in Cd-mediated BC progression. In this study, T-47D cells and MCF-7 cells were treated with different concentrations of Cd (0.1, 1 and 10 μM) for 72 h. MiR-374c-5p expression was downregulated, and transfection of miR-374c-5p mimics significantly decreased BC cell proliferation, migration and invasion induced by 10 μM Cd. Importantly, we used the Cytoscape software plugin cytoHubba to analyse the intersected genes between our RNA-Seq results and the mirDIP database, and six hub genes (CNR1, CXCR4, GRM3, RTN1, SLC1A6 and ZEB1) were identified as potential direct targets of miR-374c-5p in our model; however, luciferase reporter assays indicated that miR-374c-5p only repressed GRM3 by directly binding to its 3'-untranslated region (UTR). Of note, we verified that suppression of N6-methyladenosine (m6A) modification led to miR-374c-5p downregulation by decreasing its RNA transcript stability. Together, these findings demonstrated that m6A modification of pri-miRNA-374c blocks miRNA-374c-5p maturation and then activates GRM3 expression, which drives BC cell metastasis after Cd exposure.
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Affiliation(s)
- Yang Yue
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Ping Deng
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Heng Xiao
- Department of Anus & Intestine Surgery, Zhuzhou Hospital Affiliated to Xiangya School of Medicine (Central Hospital of Zhuzhou City), Central South University, Zhuzhou, Hunan, China
| | - Miduo Tan
- Surgery Department of Galactophore, Zhuzhou Hospital Affiliated to Xiangya School of Medicine (Central Hospital of Zhuzhou City), Central South University, Zhuzhou, Hunan, China
| | - Hui Wang
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Li Tian
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Jia Xie
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Mengyan Chen
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Yan Luo
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China
| | - Liting Wang
- Biomedical Analysis Center, Third Military Medical University, Chongqing, China
| | - Yidan Liang
- School of Medicine, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Huifeng Pi
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China.
| | - Zhou Zhou
- Department of Environmental Medicine, School of Public Health, and Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
| | - Zhengping Yu
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing, China.
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11
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Sharma H, Niveditha D, Chowdhury R, Mukherjee S, Chowdhury S. A genome-wide expression profile of noncoding RNAs in human osteosarcoma cells as they acquire resistance to cisplatin. Discov Oncol 2021; 12:43. [PMID: 35201486 PMCID: PMC8777531 DOI: 10.1007/s12672-021-00441-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/15/2021] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Recurrence after cisplatin therapy is one of the major hindrances in the management of cancer. This necessitates a deeper understanding of the molecular signatures marking the acquisition of resistance. We therefore modeled the response of osteosarcoma (OS) cells to the first-line chemotherapeutic drug cisplatin. A small population of nondividing cells survived acute cisplatin shock (persisters; OS-P). These cells regained proliferative potential over time re-instating the population again (extended persisters; OS-EP). RESULT In this study, we present the expression profile of noncoding RNAs in untreated OS cells (chemo-naive), OS-P, OS-EP and drug-resistant (OS-R) cells derived from the latter. RNA sequencing was carried out, and thereafter, differential expression (log2-fold ± 1.5; p value ≤ 0.05) of microRNAs (miRNAs) was analyzed in each set. The core set of miRNAs that were uniquely or differentially expressed in each group was identified. Interestingly, we observed that most of each group had their own distinctive set of miRNAs. The miRNAs showing an inverse correlation in expression pattern with mRNAs were further selected, and the key pathways regulated by them were delineated for each group. We observed that pathways such as TNF signaling, autophagy and mitophagy were implicated in multiple groups. CONCLUSION To the best of our knowledge, this is the first study that provides critical information on the variation in the expression pattern of ncRNAs in osteosarcoma cells and the pathways that they might tightly regulate as cells acquire resistance.
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Affiliation(s)
- Harshita Sharma
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, Rajasthan 333031 India
| | - Divya Niveditha
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, Rajasthan 333031 India
| | - Rajdeep Chowdhury
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, Rajasthan 333031 India
| | - Sudeshna Mukherjee
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, Rajasthan 333031 India
| | - Shibasish Chowdhury
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, Rajasthan 333031 India
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12
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MicroRNA Sequences Modulated by Beta Cell Lipid Metabolism: Implications for Type 2 Diabetes Mellitus. BIOLOGY 2021; 10:biology10060534. [PMID: 34203703 PMCID: PMC8232095 DOI: 10.3390/biology10060534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/08/2021] [Accepted: 06/09/2021] [Indexed: 12/23/2022]
Abstract
Alterations in lipid metabolism within beta cells and islets contributes to dysfunction and apoptosis of beta cells, leading to loss of insulin secretion and the onset of type 2 diabetes. Over the last decade, there has been an explosion of interest in understanding the landscape of gene expression which influences beta cell function, including the importance of small non-coding microRNA sequences in this context. This review sought to identify the microRNA sequences regulated by metabolic challenges in beta cells and islets, their targets, highlight their function and assess their possible relevance as biomarkers of disease progression in diabetic individuals. Predictive analysis was used to explore networks of genes targeted by these microRNA sequences, which may offer new therapeutic strategies to protect beta cell function and delay the onset of type 2 diabetes.
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Shi J, Xu X, Zhang D, Zhang J, Yang H, Li C, Li R, Wei X, Luan W, Liu P. Long non-coding RNA PTPRG-AS1 promotes cell tumorigenicity in epithelial ovarian cancer by decoying microRNA-545-3p and consequently enhancing HDAC4 expression. J Ovarian Res 2020; 13:127. [PMID: 33099316 PMCID: PMC7585679 DOI: 10.1186/s13048-020-00723-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 10/01/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Long non-coding RNA PTPRG antisense RNA 1 (PTPRG-AS1) deregulation has been reported in various human malignancies and identified as an important modulator of cancer development. Few reports have focused on the detailed role of PTPRG-AS1 in epithelial ovarian cancer (EOC) and its underlying mechanism. This study aimed to determine the physiological function of PTPRG-AS1 in EOC. A series of experiments were also performed to identify the mechanisms through which PTPRG-AS1 exerts its function in EOC. METHODS Reverse transcription-quantitative polymerase chain reaction was used to determine PTPRG-AS1 expression in EOC tissues and cell lines. PTPRG-AS1 was silenced in EOC cells and studied with respect to cell proliferation, apoptosis, migration, and invasion in vitro and tumor growth in vivo. The putative miRNAs that target PTPRG-AS1 were predicted using bioinformatics analysis and further confirmed in luciferase reporter and RNA immunoprecipitation assays. RESULTS Our data verified the upregulation of PTPRG-AS1 in EOC tissues and cell lines. High PTPRG-AS1 expression was associated with shorter overall survival in patients with EOC. Functionally, EOC cell proliferation, migration, invasion in vitro, and tumor growth in vivo were suppressed by PTPRG-AS1 silencing. In contrast, cell apoptosis was promoted by loss of PTPRG-AS1. Regarding the mechanism, PTPRG-AS1 could serve as a competing endogenous RNA in EOC cells by decoying microRNA-545-3p (miR-545-3p), thereby elevating histone deacetylase 4 (HDAC4) expression. Furthermore, rescue experiments revealed that PTPRG-AS1 knockdown-mediated effects on EOC cells were, in part, counteracted by the inhibition of miR-545-3p or restoration of HDAC4. CONCLUSIONS PTPRG-AS1 functioned as an oncogenic lncRNA that aggravated the malignancy of EOC through the miR-545-3p/HDAC4 ceRNA network. Thus, targeting the PTPRG-AS1/miR-545-3p/HDAC4 pathway may be a novel strategy for EOC anticancer therapy.
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Affiliation(s)
- Juanjuan Shi
- Department of Gynaecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 West Wenhua Road, Jinan, 277599 Shandong China ,Department of Gynaecology, Tengzhou Center People’s Hospital, Zaozhuang, 277500 Shandong China
| | - Xijian Xu
- Department of Gynaecology, Rizhao Central Hospital, Rizhao, 276800 Shandong China
| | - Dan Zhang
- Department of TCM Pharmacy, Tengzhou Center People’s Hospital, Zaozhuang, 277500 Shandong China
| | - Jiuyan Zhang
- Department of Clinical Pharmacy, Tengzhou Center People’s Hospital, Zaozhuang, 277500 Shandong China
| | - Hui Yang
- Department of Gynaecology, Tengzhou Center People’s Hospital, Zaozhuang, 277500 Shandong China
| | - Chang Li
- Department of Pathology, Tengzhou Center People’s Hospital, Zaozhuang, 277500 Shandong China
| | - Rui Li
- Department of Gynaecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 West Wenhua Road, Jinan, 277599 Shandong China
| | - Xuan Wei
- Department of Gynaecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 West Wenhua Road, Jinan, 277599 Shandong China
| | - Wenqing Luan
- Department of Gynaecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 West Wenhua Road, Jinan, 277599 Shandong China
| | - Peishu Liu
- Department of Gynaecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 West Wenhua Road, Jinan, 277599, Shandong, China.
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14
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Wong JS, Cheah YK. Potential miRNAs for miRNA-Based Therapeutics in Breast Cancer. Noncoding RNA 2020; 6:E29. [PMID: 32668603 PMCID: PMC7549352 DOI: 10.3390/ncrna6030029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/04/2020] [Accepted: 07/07/2020] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that can post-transcriptionally regulate the genes involved in critical cellular processes. The aberrant expressions of oncogenic or tumor suppressor miRNAs have been associated with cancer progression and malignancies. This resulted in the dysregulation of signaling pathways involved in cell proliferation, apoptosis and survival, metastasis, cancer recurrence and chemoresistance. In this review, we will first (i) provide an overview of the miRNA biogenesis pathways, and in vitro and in vivo models for research, (ii) summarize the most recent findings on the roles of microRNAs (miRNAs) that could potentially be used for miRNA-based therapy in the treatment of breast cancer and (iii) discuss the various therapeutic applications.
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Affiliation(s)
- Jun Sheng Wong
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Yoke Kqueen Cheah
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
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15
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Kidokoro Y, Sakabe T, Haruki T, Kadonaga T, Nosaka K, Nakamura H, Umekita Y. Gene expression profiling by targeted RNA sequencing in pathological stage I lung adenocarcinoma with a solid component. Lung Cancer 2020; 147:56-63. [PMID: 32673827 DOI: 10.1016/j.lungcan.2020.06.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 05/15/2020] [Accepted: 06/29/2020] [Indexed: 12/25/2022]
Abstract
OBJECTIVES Solid predominant adenocarcinoma is considered an independent predictor of an unfavorable prognosis in patients with stage I lung adenocarcinoma (LUAD). Furthermore, solid minor components are related to poor prognosis in patients with stage I LUAD. Therefore, it is imperative to elucidate the molecular determinants of the malignant potential of solid components (SC). Several studies reported the gene expression profiling specific for lepidic predominant adenocarcinoma or solid predominant adenocarcinoma, however; there is no report identifying the differentially expressed genes (DEGs) between SC and acinar component (AC) within the same tumor tissue in pathological (p)-stage I LUAD patients. MATERIALS AND METHODS LUAD tissue samples containing both SC and AC were obtained from 8 patients with p-stage I LUAD and each component was microdissected. Targeted RNA sequencing was performed by a high-throughput chip-based approach. RESULTS In total, 1272 DEGs were identified, including 677 upregulated genes and 595 downregulated genes in SC compared with AC. The most highly upregulated gene was TATA binding protein associated factor 7 (TAF7) and the most highly downregulated gene was homeobox B3 (HOXB3), which acts as a metastasis suppressor. A protein-protein interaction (PPI) network analysis of upregulated genes in SC identified ribosomal protein S27a (RPS27a) as a hub gene with the highest degree. First neighbors of RPS27a included PSMA6, which is a highly promising target for lung cancer. The subnetwork of PD-L1 had 10 first neighbors, including CMTM6, which enhances the ability of PD-L1-expressing tumor cells to inhibit T cells. The staining score for PD-L1 in SC was significantly higher than that in AC by immunohistochemistry (p = 0.001). CONCLUSION Our results revealed several new DEGs and key PPI network in SC compared to AC, contributing to understanding the biological features of SC and providing therapeutic targets for early-stage LUAD with SC in the future.
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Affiliation(s)
- Yoshiteru Kidokoro
- Division of Pathology, Department of Pathology, Department of Surgery, Faculty of Medicine, Tottori University, Tottori, Japan; Division of General Thoracic Surgery, Department of Surgery, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Tomohiko Sakabe
- Division of Pathology, Department of Pathology, Department of Surgery, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Tomohiro Haruki
- Division of General Thoracic Surgery, Department of Surgery, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Taichi Kadonaga
- Division of Pathology, Department of Pathology, Department of Surgery, Faculty of Medicine, Tottori University, Tottori, Japan; Division of General Thoracic Surgery, Department of Surgery, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Kanae Nosaka
- Division of Pathology, Department of Pathology, Department of Surgery, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Hiroshige Nakamura
- Division of General Thoracic Surgery, Department of Surgery, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Yoshihisa Umekita
- Division of Pathology, Department of Pathology, Department of Surgery, Faculty of Medicine, Tottori University, Tottori, Japan.
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16
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Değerli E, Torun V, Cansaran-Duman D. miR-185-5p response to usnic acid suppresses proliferation and regulating apoptosis in breast cancer cell by targeting Bcl2. Biol Res 2020; 53:19. [PMID: 32366289 PMCID: PMC7197166 DOI: 10.1186/s40659-020-00285-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 04/17/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Breast cancer is the most common cancer types among women. Recent researches have focused on determining the efficiency of alternative molecules and miRNAs in breast cancer treatment. The aim of this study was to determine the effect of usnic acid response-miR-185-5p on proliferation in the breast cancer cell and to determine its relationship with apoptosis pathway. METHODS The cell proliferation and cell apoptosis rate were significantly increased following the ectopic expression of miR-185-5p in BT-474 cells. Furthermore, the results of cell cycle assay performed by flow cytometry revealed that the transfection with miR-185-5p induced G1/S phase arrest. The apoptosis-related genes expression analysis was performed by qRT-PCR and the direct target of miR-185-5p in BT-474 cells was identified by western blot and luciferase reporter assay. RESULTS Our data showed that miR-185-5p can cause significant changes in apoptosis-related genes expression levels, suggesting that cell proliferation was suppressed by miR-185-5p via inducing apoptosis in breast cancer cells. According to western blot results, miR-185-5p lead to decrease BCL2 protein level in BT-474 cells and direct target of miR-185-5p was identified as BCL by luciferase reporter assay. CONCLUSION This study revealed that miR-185-5p may be an effective agent in the treatment of breast cancer.
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Affiliation(s)
- Elif Değerli
- Biotechnology Institute, Ankara University, Keçiören, 06135, Ankara, Turkey
| | - Vildan Torun
- Biotechnology Institute, Ankara University, Keçiören, 06135, Ankara, Turkey
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17
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Rahman MM, Brane AC, Tollefsbol TO. MicroRNAs and Epigenetics Strategies to Reverse Breast Cancer. Cells 2019; 8:cells8101214. [PMID: 31597272 PMCID: PMC6829616 DOI: 10.3390/cells8101214] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/04/2019] [Accepted: 10/06/2019] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is a sporadic disease with genetic and epigenetic components. Genomic instability in breast cancer leads to mutations, copy number variations, and genetic rearrangements, while epigenetic remodeling involves alteration by DNA methylation, histone modification and microRNAs (miRNAs) of gene expression profiles. The accrued scientific findings strongly suggest epigenetic dysregulation in breast cancer pathogenesis though genomic instability is central to breast cancer hallmarks. Being reversible and plastic, epigenetic processes appear more amenable toward therapeutic intervention than the more unidirectional genetic alterations. In this review, we discuss the epigenetic reprogramming associated with breast cancer such as shuffling of DNA methylation, histone acetylation, histone methylation, and miRNAs expression profiles. As part of this, we illustrate how epigenetic instability orchestrates the attainment of cancer hallmarks which stimulate the neoplastic transformation-tumorigenesis-malignancy cascades. As reversibility of epigenetic controls is a promising feature to optimize for devising novel therapeutic approaches, we also focus on the strategies for restoring the epistate that favor improved disease outcome and therapeutic intervention.
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Affiliation(s)
- Mohammad Mijanur Rahman
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
| | - Andrew C Brane
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
| | - Trygve O Tollefsbol
- Department of Biology, University of Alabama at Birmingham, 1300 University Boulevard, Birmingham, AL 35294, USA.
- Comprehensive Center for Healthy Aging, University of Alabama Birmingham, 1530 3rd Avenue South, Birmingham, AL 35294, USA.
- Comprehensive Cancer Center, University of Alabama Birmingham, 1802 6th Avenue South, Birmingham, AL 35294, USA.
- Nutrition Obesity Research Center, University of Alabama Birmingham, 1675 University Boulevard, Birmingham, AL 35294, USA.
- Comprehensive Diabetes Center, University of Alabama Birmingham, 1825 University Boulevard, Birmingham, AL 35294, USA.
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18
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Hao S, Tian W, Chen Y, Wang L, Jiang Y, Gao B, Luo D. MicroRNA-374c-5p inhibits the development of breast cancer through TATA-box binding protein associated factor 7-mediated transcriptional regulation of DEP domain containing 1. J Cell Biochem 2019; 120:15360-15368. [PMID: 31162714 PMCID: PMC6771484 DOI: 10.1002/jcb.28803] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 04/12/2019] [Indexed: 12/15/2022]
Abstract
Breast cancer is the most pervasive cancer tormenting women, with increasing incidence and mortality rates year after year. MicroRNAs (miRNAs) with abnormal expression has various effects in biological processes and progression in diverse tumors. Nevertheless, it is vitally crucial for us to inspect more underlying molecular mechanisms for the therapy of patients with breast cancer. In the paper, we inquired the expression level and potential regulation mechanism of miR‐374c‐5p in breast cancer. Our research found out that miR‐374c‐5p was low‐level expressed in breast cancer. Upregulation of miR‐374c‐5p repressed cell proliferation, migration, and also epithelial‐mesenchymal transition (EMT), and induced cell apoptosis of breast cancer cells. Further, we concluded that miR‐374c‐5p interacted with TAF7 and downregulated its expression. Moreover, miR‐374c‐5p modulated DEP domain containing 1 (DEPDC1) through mediating TAF7. Finally, rescue assays represented that miR‐374c‐5p suppressed breast cancer development via TAF7‐mediated transcriptional regulation of DEPDC1. We uncovered that overexpressed miR‐374c‐5p inhibited the development of breast cancer via TAF7‐regulated transcriptional regulation of DEPDC1, which may be a novel and vital proportion of cancer diagnosis and treatment strategies.
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Affiliation(s)
- Shuai Hao
- Department of Breast, Thyroid Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Wuguo Tian
- Department of Breast, Thyroid Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Yi Chen
- Department of Breast, Thyroid Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Lingli Wang
- Department of Breast, Thyroid Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Yan Jiang
- Department of Breast, Thyroid Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Bo Gao
- Department of Breast, Thyroid Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Donglin Luo
- Department of Breast, Thyroid Surgery, Daping Hospital, Army Medical University, Chongqing, China
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