1
|
Chen J, Yang X, Li W, Lin Y, Lin R, Cai X, Yan B, Xie B, Li J. Endoplasmic reticulum stress-related gene expression causes the progression of dilated cardiomyopathy by inducing apoptosis. Front Genet 2024; 15:1366087. [PMID: 38699233 PMCID: PMC11063246 DOI: 10.3389/fgene.2024.1366087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/08/2024] [Indexed: 05/05/2024] Open
Abstract
Background: Previous studies have shown that endoplasmic reticulum stress (ERS) -induced apoptosis is involved in the pathogenesis of dilated cardiomyopathy (DCM). However, the molecular mechanism involved has not been fully characterized. Results: In total, eight genes were obtained at the intersection of 1,068 differentially expressed genes (DEGs) from differential expression analysis between DCM and healthy control (HC) samples, 320 module genes from weighted gene co-expression network analysis (WGCNA), and 2,009 endoplasmic reticulum stress (ERGs). These eight genes were found to be associated with immunity and angiogenesis. Four of these genes were related to apoptosis. The upregulation of MX1 may represent an autocompensatory response to DCM caused by a virus that inhibits viral RNA and DNA synthesis, while acting as an autoimmune antigen and inducing apoptosis. The upregulation of TESPA1 would lead to the dysfunction of calcium release from the endoplasmic reticulum. The upregulation of THBS4 would affect macrophage differentiation and apoptosis, consistent with inflammation and fibrosis of cardiomyocytes in DCM. The downregulation of MYH6 would lead to dysfunction of the sarcomere, further explaining cardiac remodeling in DCM. Moreover, the expression of genes affecting the immune micro-environment was significantly altered, including TGF-β family member. Analysis of the co-expression and competitive endogenous RNA (ceRNA) network identified XIST, which competitively binds seven target microRNAs (miRNAs) and regulates MX1 and THBS4 expression. Finally, bisphenol A and valproic acid were found to target MX1, MYH6, and THBS4. Conclusion: We have identified four ERS-related genes (MX1, MYH6, TESPA1, and THBS4) that are dysregulated in DCM and related to apoptosis. This finding should help deepen understanding of the role of endoplasmic reticulum stress-induced apoptosis in the development of DCM.
Collapse
Affiliation(s)
- Jinhao Chen
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Xu Yang
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Weiwen Li
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Ying Lin
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Run Lin
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Xianzhen Cai
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Baoxin Yan
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Bin Xie
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Jilin Li
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| |
Collapse
|
2
|
Barbato A, Piscopo F, Salati M, Pollastro C, Evangelista L, Ferrante L, Limongello D, Brillante S, Iuliano A, Reggiani-Bonetti L, Salatiello M, Iaccarino A, Pisapia P, Malapelle U, Troncone G, Indrieri A, Dominici M, Franco B, Carotenuto P. A MiR181/Sirtuin1 regulatory circuit modulates drug response in biliary cancers. Clin Exp Med 2024; 24:74. [PMID: 38598008 PMCID: PMC11006774 DOI: 10.1007/s10238-024-01332-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 03/14/2024] [Indexed: 04/11/2024]
Abstract
Despite recent advances, biliary tract cancer (BTC) remains one of the most lethal tumor worldwide due to late diagnosis, limited therapeutic strategies and resistance to conventional therapies. In recent years, high-throughput technologies have enabled extensive genome, and transcriptome sequencing unveiling, among others, the regulatory potential of microRNAs (miRNAs). Compelling evidence shown that miRNA are attractive therapeutic targets and promising candidates as biomarkers for various therapy-resistant tumors. The analysis of miRNA profile successfully identified miR-181c and -181d as significantly downregulated in BTC patients. Low miR-181c and -181d expression levels were correlated with worse prognosis and poor treatment efficacy. In fact, progression-free survival analysis indicated poor survival rates in miR-181c and -181d low expressing patients. The expression profile of miR-181c and -181d in BTC cell lines revealed that both miRNAs were dysregulated. Functional in vitro experiments in BTC cell lines showed that overexpression of miR-181c and -181d affected cell viability and increased sensitivity to chemotherapy compared to controls. In addition, by using bioinformatic tools we showed that the miR-181c/d functional role is determined by binding to their target SIRT1 (Sirtuin 1). Moreover, BTC patients expressing high levels of miR-181 and low SIRT1 shown an improved survival and treatment response. An integrative network analysis demonstrated that, miR-181/SIRT1 circuit had a regulatory effect on several important metabolic tumor-related processes. Our study demonstrated that miR-181c and -181d act as tumor suppressor miRNA in BTC, suggesting the potential use as therapeutic strategy in resistant cancers and as predictive biomarker in the precision medicine of BTC.
Collapse
Affiliation(s)
- Anna Barbato
- TIGEM, Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy
- Department of Translational Medical Science, Medical Genetics, University of Naples "Federico II", 80131, Naples, Italy
| | - Fabiola Piscopo
- TIGEM, Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy
- Department of Translational Medical Science, Medical Genetics, University of Naples "Federico II", 80131, Naples, Italy
| | - Massimiliano Salati
- Division of Oncology, Department of Oncology and Hematology, University Hospital of Modena, 41125, Modena, Italy
| | - Carla Pollastro
- TIGEM, Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy
- Department of Translational Medical Science, Medical Genetics, University of Naples "Federico II", 80131, Naples, Italy
| | - Lorenzo Evangelista
- TIGEM, Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy
| | - Luigi Ferrante
- TIGEM, Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy
| | - Davide Limongello
- TIGEM, Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy
| | - Simona Brillante
- TIGEM, Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy
- IRGB, Institute for Genetic and Biomedical Research, National Research Council (CNR), Milan, Italy
| | - Antonella Iuliano
- Department of Mathematics, Computer Science and Economics (DIMIE), University of Basilicata, 85100, Potenza, Italy
| | - Luca Reggiani-Bonetti
- Department of Medical and Surgical Sciences for Children and Adults, University Hospital of Modena, 41125, Modena, Italy
| | - Maria Salatiello
- Department of Public Health, Universita' degli Studi di Napoli-AOU Federico II, 80131, Naples, Italy
| | - Antonino Iaccarino
- Department of Public Health, Universita' degli Studi di Napoli-AOU Federico II, 80131, Naples, Italy
| | - Pasquale Pisapia
- Department of Public Health, Universita' degli Studi di Napoli-AOU Federico II, 80131, Naples, Italy
| | - Umberto Malapelle
- Department of Public Health, Universita' degli Studi di Napoli-AOU Federico II, 80131, Naples, Italy
| | - Giancarlo Troncone
- Department of Public Health, Universita' degli Studi di Napoli-AOU Federico II, 80131, Naples, Italy
| | - Alessia Indrieri
- TIGEM, Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy
- IRGB, Institute for Genetic and Biomedical Research, National Research Council (CNR), Milan, Italy
| | - Massimo Dominici
- Division of Oncology, Department of Oncology and Hematology, University Hospital of Modena, 41125, Modena, Italy
| | - Brunella Franco
- TIGEM, Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy
- Department of Translational Medical Science, Medical Genetics, University of Naples "Federico II", 80131, Naples, Italy
- Scuola Superiore Meridionale (SSM, School of Advanced Studies), Genomics and Experimental Medicine Program, 80078, Naples, Italy
| | - Pietro Carotenuto
- TIGEM, Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078, Pozzuoli, Naples, Italy.
- Department of Translational Medical Science, Medical Genetics, University of Naples "Federico II", 80131, Naples, Italy.
| |
Collapse
|
3
|
Wang H, Cai H, Li L. Comprehensive analysis of m6A reader YTHDF2 prognosis, immune infiltration, and related regulatory networks in hepatocellular carcinoma. Heliyon 2024; 10:e23204. [PMID: 38163150 PMCID: PMC10756983 DOI: 10.1016/j.heliyon.2023.e23204] [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: 07/16/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024] Open
Abstract
Background N6-Methyladenosine (m6A) RNA modification is the most prevalent internal modification pattern in eukaryotic mRNAs and plays critical roles in diverse physiological and pathological processes. However, the expression of m6A regulator YTHDF2, its prognostic value, its biological function, its correlation with tumor microenvironment (TME) immune infiltrates, and related regulatory networks in hepatocellular carcinoma (HCC) remain determined. Methods TCGA, GTEx, and GEO databases were used to investigate the expression profile of YTHDF2 in HCC. We performed differentially expressed genes (DEGs) analysis and constructed a PPI network to explore the biological processes of YTHDF2 in HCC. Kaplan-Meier curves and Cox regression analysis were used to assess the prognostic value of YTHDF2 and then a clinical prognostic nomogram was constructed. Additionally, ssGSEA was performed to assess the correlation between YTHDF2 and immune infiltration levels. The TISIDB database was applied to explore the expression of YTHDF2 in immune and molecular subtypes of HCC. GSEA identifies the YTHDF2-related signaling pathways. Finally, we utilized miRNet and starBase database to construct regulatory networks for HCC based on lncRNA-miRNA and miRNA-YTHDF2 interactions. Results YTHDF2 was significantly upregulated in HCC tumor tissues compared with the adjacent normal tissues. HCC patients in the high YTHDF2 expression group had poorer survival. Multivariate Cox analysis suggested that YTHDF2 may be a new independent prognostic indicator for HCC patients, with the prognostic nomogram exhibiting satisfactory results. YTHDF2 expression was significantly correlated with TME immune cell-infiltrating characteristics. Strong correlations were also shown in immune subtypes, molecular subtypes and immune checkpoints. Further analysis revealed that the combination of YTHDF2 expression and immune cell score was considerably associated with survival outcome in HCC patients. GESA analysis demonstrated that high YTHDF2 expression is associated with multiple biological processes and oncogenic pathways. Moreover, 14 possible regulatory networks were constructed, which are associated with HCC progression. Conclusion Our findings revealed that YTHDF2 may serve as a promising prognostic biomarker for HCC and may regulate the tumor immune microenvironment to provide effective therapeutic strategies.
Collapse
Affiliation(s)
- Hang Wang
- Shengli Clinical Medical College of Fujian Medical University, Department of Health Management, Fujian Provincial Hospital, Fuzhou, Fujian, China
- Shengli Clinical Medical College of Fujian Medical University, Department of Disease Prevention and Healthcare, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Hui Cai
- Shengli Clinical Medical College of Fujian Medical University, Department of Health Management, Fujian Provincial Hospital, Fuzhou, Fujian, China
| | - Li Li
- Shengli Clinical Medical College of Fujian Medical University, Department of Health Management, Fujian Provincial Hospital, Fuzhou, Fujian, China
- Shengli Clinical Medical College of Fujian Medical University, Department of Disease Prevention and Healthcare, Fujian Provincial Hospital, Fuzhou, Fujian, China
| |
Collapse
|
4
|
Liu L, Liu J, Lyu Q, Huang J, Chen Y, Feng C, Liu Y, Chen F, Wang Z. Disulfidptosis-associated LncRNAs index predicts prognosis and chemotherapy drugs sensitivity in cervical cancer. Sci Rep 2023; 13:12470. [PMID: 37528124 PMCID: PMC10394072 DOI: 10.1038/s41598-023-39669-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 07/28/2023] [Indexed: 08/03/2023] Open
Abstract
Disulfidptosis is a newly discovered form of cell death. Not yet clearly classified as programmed cell death or accidental cell death. This study aimed to create a novel disulfidptosis-related lncRNA index (DLI) that can be used to predict survival and chemotherapy drugs sensitivity in patients with cervical cancer. First of all, we found lncRNAs associated with disulfidptosis between cervical cancer tissues and normal tissues. By LASSO-Cox analysis, overlapping lncRNAs were then used to construct lncRNA index associated with disulfidptosis, which can be served to predict the prognosis of patients with CC, especially the chemotherapy drugs sensitivity. ROC curves and PCA based on DLI and clinical signatures were developed and demonstrated to have good predictive potential. In addition, differences in immune cell subset infiltration and differences in immune checkpoint expression between high-DLI and low-DLI groups were analyzed, and we investigated the relationship between the DLI and tumor mutation burden (TMB). In summary, we constructed a lncRNA prediction index associated with disulfidptosis. This has important clinical implications, including improving the predictive value of cervical cancer patients and providing a biomarker for cervical cancer guiding individualized treatment.
Collapse
Affiliation(s)
- Li Liu
- Department of Gynecology, Shunde Women and Children's Hospital (Maternity and Child Healthcare Hospital of Shunde Foshan), Guangdong Medical University, No.1 Baojian Road, Shunde District, Foshan, 528300, Guangdong, China
| | - Jun Liu
- Department of Obstetrics, Pingxiang Maternal and Child Health Hospital, Pingxiang, 337000, Jiangxi, China
| | - Qianbao Lyu
- Department of Gynecology, Shunde Women and Children's Hospital (Maternity and Child Healthcare Hospital of Shunde Foshan), Guangdong Medical University, No.1 Baojian Road, Shunde District, Foshan, 528300, Guangdong, China
| | - Jinzhi Huang
- Department of Gynecology, Shunde Women and Children's Hospital (Maternity and Child Healthcare Hospital of Shunde Foshan), Guangdong Medical University, No.1 Baojian Road, Shunde District, Foshan, 528300, Guangdong, China
| | - Yuanfeng Chen
- Department of Gynecology, Shunde Women and Children's Hospital (Maternity and Child Healthcare Hospital of Shunde Foshan), Guangdong Medical University, No.1 Baojian Road, Shunde District, Foshan, 528300, Guangdong, China
| | - Cuiyi Feng
- Department of Gynecology, Shunde Women and Children's Hospital (Maternity and Child Healthcare Hospital of Shunde Foshan), Guangdong Medical University, No.1 Baojian Road, Shunde District, Foshan, 528300, Guangdong, China
| | - Yaoyao Liu
- Geneplus-Beijing Institute, Beijing, 10000, China
| | - Fukun Chen
- Geneplus-Beijing Institute, Beijing, 10000, China
| | - Zhouyan Wang
- Department of Gynecology, Shunde Women and Children's Hospital (Maternity and Child Healthcare Hospital of Shunde Foshan), Guangdong Medical University, No.1 Baojian Road, Shunde District, Foshan, 528300, Guangdong, China.
- Department of Pharmacy, Shunde Women and Children's Hospital (Maternity and Child Healthcare Hospital of Shunde Foshan), Guangdong Medical University, Foshan, 528300, Guangdong, China.
| |
Collapse
|
5
|
Zhao Y, Zhang X, Wang J, Li Y, Wu Y, Liu J. Long Non-Coding RNA ZSCAN16-AS1 Promotes the Malignant Progression of Melanoma Through Regulating the miR-503-5p/ARL2 Axis. Clin Cosmet Investig Dermatol 2023; 16:1821-1831. [PMID: 37483470 PMCID: PMC10361287 DOI: 10.2147/ccid.s407323] [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: 03/25/2023] [Accepted: 06/16/2023] [Indexed: 07/25/2023]
Abstract
Background LncRNA zinc finger and SCAN domain containing 16 antisense RNA 1 (ZSCAN16-AS1), a newly identified lncRNA, has been proven to accelerate hepatocellular carcinoma progression. However, the function and molecular mechanism of ZSCAN16-AS1 in melanoma are still unknown. Methods The level of ZSCAN16-AS1 in melanoma tissues was detected and reported in The Cancer Genome Atlas (TCGA) and GEO#GSE15605. CCK-8, Transwell and flow cytometry assays were used to explore the role of ZSCAN16-AS1 in melanoma cells. Luciferase reporter assays and RNA pull-down assays were used to verify the molecular mechanism of ZSCAN16-AS1. Results Here, we found that ZSCAN16-AS1 expression was increased in melanoma. We confirmed that ZSCAN16-AS1 promotes the growth and metastasis of melanoma. ZSCAN16-AS1 exerts its pro-tumour role through sponging of miR-503-5p to liberate ADP-ribosylation factor-like protein 2 (ARL2) mRNA transcripts. Conclusion These results demonstrated the role and molecular mechanism of ZSCAN16-AS1 in the occurrence and development of melanoma. Therefore, ZSCAN16-AS1 may be used as a specific biomarker in the diagnosis and treatment of melanoma patients.
Collapse
Affiliation(s)
- Yuting Zhao
- Department of Plastic Surgery, the Third the People’s Hospital of Bengbu, Bengbu, Anhui, People’s Republic of China
| | - Xiangzhou Zhang
- Department of Plastic Surgery, the Third the People’s Hospital of Bengbu, Bengbu, Anhui, People’s Republic of China
| | - Jie Wang
- Department of Plastic Surgery, Affiliated People’s Hospital of Jiangsu University, Zhenjiang, Jiangsu, People’s Republic of China
| | - Yong Li
- Department of Plastic Surgery, the Third the People’s Hospital of Bengbu, Bengbu, Anhui, People’s Republic of China
| | - Yitong Wu
- Department of Plastic Surgery, the Third the People’s Hospital of Bengbu, Bengbu, Anhui, People’s Republic of China
| | - Jisong Liu
- Department of Plastic Surgery, the Third the People’s Hospital of Bengbu, Bengbu, Anhui, People’s Republic of China
| |
Collapse
|
6
|
Mosca N, Russo A, Potenza N. Making Sense of Antisense lncRNAs in Hepatocellular Carcinoma. Int J Mol Sci 2023; 24:8886. [PMID: 37240232 PMCID: PMC10219390 DOI: 10.3390/ijms24108886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/14/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Transcriptome complexity is emerging as an unprecedented and fascinating domain, especially by high-throughput sequencing technologies that have unveiled a plethora of new non-coding RNA biotypes. This review covers antisense long non-coding RNAs, i.e., lncRNAs transcribed from the opposite strand of other known genes, and their role in hepatocellular carcinoma (HCC). Several sense-antisense transcript pairs have been recently annotated, especially from mammalian genomes, and an understanding of their evolutionary sense and functional role for human health and diseases is only beginning. Antisense lncRNAs dysregulation is significantly involved in hepatocarcinogenesis, where they can act as oncogenes or oncosuppressors, thus playing a key role in tumor onset, progression, and chemoradiotherapy response, as deduced from many studies discussed here. Mechanistically, antisense lncRNAs regulate gene expression by exploiting various molecular mechanisms shared with other ncRNA molecules, and exploit special mechanisms on their corresponding sense gene due to sequence complementarity, thus exerting epigenetic, transcriptional, post-transcriptional, and translational controls. The next challenges will be piecing together the complex RNA regulatory networks driven by antisense lncRNAs and, ultimately, assigning them a function in physiological and pathological contexts, in addition to defining prospective novel therapeutic targets and innovative diagnostic tools.
Collapse
Affiliation(s)
| | | | - Nicoletta Potenza
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania “Luigi Vanvitelli”, 81100 Caserta, Italy; (N.M.); (A.R.)
| |
Collapse
|
7
|
Chu J, Li Y, He M, Zhang H, Yang L, Yang M, Liu J, Cui C, Hong L, Hu X, Zhou L, Li T, Li C, Fan H, Jiang G, Lang T. Zinc finger and SCAN domain containing 1, ZSCAN1, is a novel stemness-related tumor suppressor and transcriptional repressor in breast cancer targeting TAZ. Front Oncol 2023; 13:1041688. [PMID: 36923432 PMCID: PMC10009259 DOI: 10.3389/fonc.2023.1041688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 01/30/2023] [Indexed: 03/02/2023] Open
Abstract
Introduction Cancer stem cells (CSCs) targeted therapy holds the potential for improving cancer management; identification of stemness-related genes in CSCs is necessary for its development. Methods The Cancer Genome Atlas (TCGA) and the Molecular Taxonomy of Breast Cancer International Consortium (METABRIC) datasets were used for survival analysis. ZSCAN1 correlated genes was identified by Spearman correlation analysis. Breast cancer stem-like cells (BCSLCs) were isolated by sorting CD44+CD24- cells from suspension cultured breast cancer (BC) spheroids. The sphere-forming capacity and sphere- and tumor-initiating capacities were determined by sphere formation and limiting dilution assays. The relative gene expression was determined by qRT-PCR, western blot. Lentivirus system was used for gene manipulation. Nuclear run-on assay was employed to examine the levels of nascent mRNAs. DNA pull-down and Chromatin immunoprecipitation (ChIP) assays were used for determining the interaction between protein and target DNA fragments. Luciferase reporter assay was used for evaluating the activity of the promoter. Results and discussion ZSCAN1 is aberrantly suppressed in BC, and this suppression indicates a bad prognosis. Ectopic expression of ZSCAN1 inhibited the proliferation, clonogenicity, and tumorigenicity of BC cells. ZSCAN1-overexpressing BCSLCs exhibited weakened stemness properties. Normal human mammary epithelial (HMLE) cells with ZSCAN1 depletion exhibited enhanced stemness properties. Mechanistic studies showed that ZSCAN1 directly binds to -951 ~ -925bp region of WWTR1 (encodes TAZ) promoter, inhibits WWTR1 transcription, thereby inhibiting the stemness of BCSCs. Our work thus revealed ZSCAN1 as a novel stemness-related tumor suppressor and transcriptional repressor in BC.
Collapse
Affiliation(s)
- Jian Chu
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Yunzhe Li
- College of Bioengineering, Chongqing University, Chongqing, China
| | - Misi He
- Department of Gynecologic Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing, China
| | - Hui Zhang
- Department of Breast Cancer Center, Chongqing University Cancer Hospital, Chongqing, China
| | - Lingling Yang
- School of Medicine, Chongqing University, Chongqing, China
| | - Muyao Yang
- College of Bioengineering, Chongqing University, Chongqing, China
| | - Jingshu Liu
- Obstetrics and Gynecology Department, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chenxi Cui
- School of Medicine, Chongqing University, Chongqing, China
| | - Liquan Hong
- Department of Clinical Laboratory, Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, China
| | - Xingchi Hu
- Department of General Surgery, Yancheng City No.1 People's Hospital, Yancheng, Jiangsu, China
| | - Lei Zhou
- School of Optometry, Department of Applied Biology and Chemical Technology, Research Centre for SHARP Vision (RCSV), The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China.,Centre for Eye and Vision Research (CEVR), 17W Hong Kong Science Park, Hong Kong, Hong Kong SAR, China
| | - Tangya Li
- Department of General Surgery, Yancheng City No.1 People's Hospital, Yancheng, Jiangsu, China
| | - Changchun Li
- Department of General Surgery, Yancheng City No.1 People's Hospital, Yancheng, Jiangsu, China
| | - Huiwen Fan
- Department of General Surgery, Yancheng City No.1 People's Hospital, Yancheng, Jiangsu, China
| | - Guoqin Jiang
- Department of Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Tingyuan Lang
- Department of Gynecologic Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing, China.,Reproductive Medicine Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
8
|
Development of a Prognostic Model Based on the Identification of EMT-Related lncRNAs in Triple-Negative Breast Cancer. JOURNAL OF ONCOLOGY 2021; 2021:9219961. [PMID: 34873403 PMCID: PMC8643262 DOI: 10.1155/2021/9219961] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 11/08/2021] [Indexed: 12/29/2022]
Abstract
Background Triple-negative breast cancer (TNBC) remains the most incurable subtype of breast cancer owing to high heterogeneity, aggressive nature, and lack of treatment options. It is generally acknowledged that epithelial-mesenchymal transition (EMT) is the key step in tumor metastasis. Methods With the application of TCGA and GEO databases, we identified EMT-related lncRNAs by the Cox univariate regression analysis. Optimum risk scores were calculated and used to divide TNBC patients into high-/low-risk subgroups by the median value using the Lasso regression analysis. The Kaplan–Meier and ROC curve analyses were applied for model validation. Then, we assessed the risk model from multi-omic aspects including immune infiltration, drug sensitivity, mutability spectrum, signaling pathways, and clinical indicators. We also analyzed the expression pattern of lncRNAs involved in the model using qRT-PCR in TNBC cell lines and constructed the ceRNA network. Results The risk model was composed of EMT-related long noncoding RNAs (lncRNAs), which seemed to be valuable in the prognostic prediction of TNBC patients. The model could act as an independent prognostic factor of TNBC and showed a robust prognostic ability in the stratification analysis. Further investigation demonstrated that the expression of lncRNAs was different between high aggressive and low aggressive TNBC cell lines, as well as TNBC patients. Conclusions Together, our study successfully established a risk model with great accuracy and efficacy in the prognostic prediction of TNBC patients.
Collapse
|