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Zhong F, Wang Y. YY1-regulated lncRNA SOCS2-AS1 suppresses HCC cell stemness and progression via miR-454-3p/CPEB1. Biochem Biophys Res Commun 2023; 679:98-109. [PMID: 37677983 DOI: 10.1016/j.bbrc.2023.08.056] [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: 06/16/2023] [Revised: 08/17/2023] [Accepted: 08/25/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND Cancer stem cells are one fundamental reason for the high recurrence rate of hepatocellular carcinoma (HCC) and its resistance to treatment. This study explored the mechanism by which SOCS2-AS1 affects HCC cell stemness. METHODS Stem cells of HCC cell lines Huh7 and SNU-398 were sorted as NANOG-positive by flow cytometry. Stem cell sphere formation ability was detected. Stem cell viability, migration, invasion, and apoptosis were assessed by colony formation assays, Transwell assays, wound-healing assays, and TUNEL assays, respectively. The binding sites for SOCS2-AS1, miR-454-3p, miR-454-3p, and CPEB1 mRNA were assessed by dual-luciferase reporter assays. Quantitative real-time PCR (qPCR) and Western blot studies were performed to evaluate gene expression levels. ChIP and EMSA assays were conducted to confirm that YY1 binds with the SOCS2-AS1 promoter. A subcutaneous xenograft model was used to verify results in vivo. Tumor tissues were analyzed by H&E and TUNEL staining. RESULTS SOCS2-AS1 was expressed at low levels in NANOG+ HCC stem cells, and HCC patients with a high level of SOCS2-AS1 expression had a higher survival rate. SOCS2-AS1 inhibited HCC cell stemness, migration, and invasion, and increased the cisplatin sensitivity of HCC cells by regulating miR-454-3p/CPEB1. YY1 was confirmed as a transcription factor of SOCS2-AS1, and served to inhibit SOCS2-AS1 transcription. YY1 knockdown suppressed HCC stemness via SOCS2-AS1. The role of SOCS2-AS1 was confirmed in a subcutaneous xenograft model, and SOCS2-AS1 overexpression enhanced the inhibitory effect of cisplatin on HCC in vivo. CONCLUSIONS YY1-regulated lncRNA SOCS2-AS1 suppresses HCC cell stemness and progression via miR-454-3p/CPEB1.
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Affiliation(s)
- Feng Zhong
- Department of General Surgery, Hospital of Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Yuanxi Wang
- Vascular and Endovascular Surgery, Shenzhen Samii Medical Center, Shenzhen, Guangdong, 518118, China.
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Srivastava S, Garg I, Singh Y, Meena R, Ghosh N, Kumari B, Kumar V, Eslavath MR, Singh S, Dogra V, Bargotya M, Bhattar S, Gupta U, Jain S, Hussain J, Varshney R, Ganju L. Evaluation of altered miRNA expression pattern to predict COVID-19 severity. Heliyon 2023; 9:e13388. [PMID: 36743852 PMCID: PMC9889280 DOI: 10.1016/j.heliyon.2023.e13388] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 01/20/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Outbreak of COVID-19 pandemic in December 2019 affected millions of people globally. After substantial research, several biomarkers for COVID-19 have been validated however no specific and reliable biomarker for the prognosis of patients with COVID-19 infection exists. Present study was designed to identify specific biomarkers to predict COVID-19 severity and tool for formulating treatment. A small cohort of subjects (n = 43) were enrolled and categorized in four study groups; Dead (n = 16), Severe (n = 10) and Moderate (n = 7) patients and healthy controls (n = 10). Small RNA sequencing was done on Illumina platform after isolation of microRNA from peripheral blood. Differential expression (DE) of miRNA (patients groups compared to control) revealed 118 down-regulated and 103 up-regulated known miRNAs with fold change (FC) expression ≥2 folds and p ≤ 0.05. DE miRNAs were then subjected to functional enrichment and network analysis. Bioinformatic analysis resulted in 31 miRNAs (24 Down-regulated; 7 up-regulated) significantly associated with COVID-19 having AUC>0.8 obtained from ROC curve. Seventeen out of 31 DE miRNAs have been linked to COVID-19 in previous studies. Three miRNAs, hsa-miR-147b-5p and hsa-miR-107 (down-regulated) and hsa-miR-1299 (up-regulated) showed significant unique DE in Dead patients. Another set of 4 miRNAs, hsa-miR-224-5p (down-regulated) and hsa-miR-4659b-3p, hsa-miR-495-3p and hsa-miR-335-3p were differentially up-regulated uniquely in Severe patients. Members of three miRNA families, hsa-miR-20, hsa-miR-32 and hsa-miR-548 were significantly down-regulated in all patients group in comparison to healthy controls. Thus a distinct miRNA expression profile was observed in Dead, Severe and Moderate COVID-19 patients. Present study suggests a panel of miRNAs which identified in COVID-19 patients and could be utilized as potential diagnostic biomarkers for predicting COVID-19 severity.
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Affiliation(s)
- Swati Srivastava
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India,Corresponding author
| | - Iti Garg
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India,Corresponding author
| | - Yamini Singh
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Ramesh Meena
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Nilanjana Ghosh
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Babita Kumari
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Vinay Kumar
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Malleswara Rao Eslavath
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Sayar Singh
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Vikas Dogra
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Mona Bargotya
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Sonali Bhattar
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Utkarsh Gupta
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Shruti Jain
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Javid Hussain
- Pulmonary Medicine, Rajiv Gandhi Super Speciality Hospital (RGSSH), Delhi, India
| | - Rajeev Varshney
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
| | - Lilly Ganju
- Genomics Division, Defence Institute of Physiology and Allied Science (DIPAS), Lucknow Road, Timarpur, Delhi, 110054, India
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Chen Q, Yang Z, Ding H, Li H, Wang W, Pan Z. CircWHSC1 Promotes Breast Cancer Progression by Regulating the FASN/AMPK/mTOR Axis Through Sponging miR-195-5p. Front Oncol 2022; 11:649242. [PMID: 35070947 PMCID: PMC8766753 DOI: 10.3389/fonc.2021.649242] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 11/26/2021] [Indexed: 12/27/2022] Open
Abstract
Numerous studies reveal that circular RNAs (circRNAs) affect cancer progression. CircWHSC1 is a novel circRNA that accelerates ovarian cancer progression. Nevertheless, the function of circWHSC1 in regulating breast cancer (BC) is elusive. Here, quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was carried out to detect the profiles of circWHSC1 and miR-195-5p in BC tissues and corresponding non-tumor tissues. Gain- and loss-of-function assays were implemented both in vivo and ex vivo to verify the significance of circWHSC1 in BC development. BC cell proliferation was estimated by the cell counting kit-8 (CCK-8) and BrdU assays. Transwell assay was implemented to test BC cell migration and invasion. The protein levels of FASN, AMPK and mTOR were determined by Western blot. Moreover, immunohistochemistry was performed to examine Ki67 and FASN expression. As shown by the result, circWHSC1 was up-regulated in BC tissues versus adjacent non-tumor tissues. circWHSC1 overexpression was correlated with higher tumor stages, lymphatic metastasis and worse survival of BC patients. Functionally, overexpressing circWHSC1 amplified proliferation, migration and invasion of BC cell lines and boosted xenograft tumor growth in nude mice. Bioinformatics uncovered that circWHSC1 functioned as a competitive endogenous RNA by sponging miR-195-5p, which was further corroborated by the dual-luciferase reporter assay and RNA immunoprecipitation. miR-195-5p delayed BC progression, which was dampened by circWHSC1 up-regulation. Fatty acid synthase (FASN) was affirmed as a direct target of miR-195-5p. miR-195-5p overexpression curbed FASN expression and activated its downstream AMPK pathway. Inhibition of FASN or activation of the AMPK pathway reversed circWHSC1-mediated oncogenic effects. Collectively, CircWHSC1 acted as an oncogene to expedite BC evolvement by modulating the miR-195-5p/FASN/AMPK/mTOR pathway.
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Affiliation(s)
- Qian Chen
- Department of General Surgery, Minhang Hospital, Fudan University, Shanghai, China
| | - Zhen Yang
- Department of General Surgery, Minhang Hospital, Fudan University, Shanghai, China
| | - Hongjian Ding
- Department of General Surgery, Minhang Hospital, Fudan University, Shanghai, China
| | - Huaqing Li
- Department of General Surgery, Minhang Hospital, Fudan University, Shanghai, China
| | - Weiyu Wang
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, Hubei Key Laboratory of Medical Technology on Transplantation, Wuhan, China
| | - Zhiyu Pan
- Department of General Surgery, Minhang Hospital, Fudan University, Shanghai, China
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