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Zhang M, Zhang F, Wang J, Liang Q, Zhou W, Liu J. Comprehensive characterization of stemness-related lncRNAs in triple-negative breast cancer identified a novel prognostic signature related to treatment outcomes, immune landscape analysis and therapeutic guidance: a silico analysis with in vivo experiments. J Transl Med 2024; 22:423. [PMID: 38704606 PMCID: PMC11070106 DOI: 10.1186/s12967-024-05237-0] [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: 01/06/2024] [Accepted: 04/26/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Cancer stem cells (CSCs) and long non-coding RNAs (lncRNAs) are known to play a crucial role in the growth, migration, recurrence, and drug resistance of tumor cells, particularly in triple-negative breast cancer (TNBC). This study aims to investigate stemness-related lncRNAs (SRlncRNAs) as potential prognostic indicators for TNBC patients. METHODS Utilizing RNA sequencing data and corresponding clinical information from the TCGA database, and employing Weighted Gene Co-expression Network Analysis (WGCNA) on TNBC mRNAsi sourced from an online database, stemness-related genes (SRGs) and SRlncRNAs were identified. A prognostic model was developed using univariate Cox and LASSO-Cox analysis based on SRlncRNAs. The performance of the model was evaluated using Kaplan-Meier analysis, ROC curves, and ROC-AUC. Additionally, the study delved into the underlying signaling pathways and immune status associated with the divergent prognoses of TNBC patients. RESULTS The research identified a signature of six SRlncRNAs (AC245100.6, LINC02511, AC092431.1, FRGCA, EMSLR, and MIR193BHG) for TNBC. Risk scores derived from this signature were found to correlate with the abundance of plasma cells. Furthermore, the nominated chemotherapy drugs for TNBC exhibited considerable variability between different risk score groups. RT-qPCR validation confirmed abnormal expression patterns of these SRlncRNAs in TNBC stem cells, affirming the potential of the SRlncRNAs signature as a prognostic biomarker. CONCLUSION The identified signature not only demonstrates predictive power in terms of patient outcomes but also provides insights into the underlying biology, signaling pathways, and immune status associated with TNBC prognosis. The findings suggest the possibility of guiding personalized treatments, including immune checkpoint gene therapy and chemotherapy strategies, based on the risk scores derived from the SRlncRNA signature. Overall, this research contributes valuable knowledge towards advancing precision medicine in the context of TNBC.
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Affiliation(s)
- Min Zhang
- Xiangya Hospital, Central South University, Changsha, 41000, Hunan, People's Republic of China
| | - Fangxu Zhang
- Department of General Surgery, The Fourth People's Hospital of Jinan, Jinan, 250000, Shandong, People's Republic of China
| | - Jianfeng Wang
- Department of Gastrointestinal Surgery, 970 Hospital of the PLA Joint Logistic Support Force, Yantai, 264000, Shandong, People's Republic of China
| | - Qian Liang
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Weibing Zhou
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 41000, Hunan, People's Republic of China
| | - Jian Liu
- Department of Otolaryngology-Head and Neck Surgery, QingPu Branch of Zhongshan Hospital Affiliated to Fudan University, Shanghai, 201700, People's Republic of China.
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Liu J, Wang S, Zhang C, Wei Z, Han D, Song Y, Song X, Chao F, Wu Z, Xu G, Chen G. Anillin contributes to prostate cancer progression through the regulation of IGF2BP1 to promote c-Myc and MAPK signaling. Am J Cancer Res 2024; 14:490-506. [PMID: 38455417 PMCID: PMC10915328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/18/2024] [Indexed: 03/09/2024] Open
Abstract
Prostate cancer (PCa), especially castration-resistant PCa, is a common and fatal disease. Anillin (ANLN) is an actin-binding protein that is involved in various malignancies, including PCa. However, the regulatory mechanism of ANLN in PCa remains unclear. Exploring the role of ANLN in PCa development and discovering novel therapeutic targets are crucial for PCa therapy. In the current work, we discovered that ANLN expression was considerably elevated in PCa tissues and cell lines when compared to nearby noncancerous prostate tissues and normal prostate epithelial cells. ANLN was associated with more advanced T stage, N stage, higher Gleason score, and prostate-specific antigen (PSA) level. In addition, we discovered that overexpression of ANLN promoted PCa cell proliferation, migration, and invasion in vitro and in vivo. Mechanistically, we performed RNA-seq to identify the regulatory influence of ANLN on the MAPK signal pathway. Furthermore, a favorable association between ANLN expression and IGF2BP1 expression was identified. The tumor-suppressive impact of ANLN downregulation on PCa cell growth was partially reversed by overexpressing IGF2BP1. Meanwhile, we discovered that ANLN can stabilize the proto-oncogene c-Myc and activate the MAPK signaling pathway through IGF2BP1. These findings indicate that ANLN could be a potential therapeutic target in PCa.
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Affiliation(s)
- Jinke Liu
- Department of Urology, Jinshan Hospital, Fudan UniversityShanghai 201508, China
| | - Shiyu Wang
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan UniversityShanghai 201508, China
| | - Cong Zhang
- Department of Urology, Jinshan Hospital, Fudan UniversityShanghai 201508, China
| | - Ziwei Wei
- Department of Urology, Jinshan Hospital, Fudan UniversityShanghai 201508, China
| | - Dunsheng Han
- Department of Urology, Jinshan Hospital, Fudan UniversityShanghai 201508, China
| | - Yufeng Song
- Department of Urology, Jinshan Hospital, Fudan UniversityShanghai 201508, China
| | - Xiaoming Song
- Department of Urology, Jinshan Hospital, Fudan UniversityShanghai 201508, China
| | - Fan Chao
- Department of Urology, Zhongshan Hospital, Fudan University (Xiamen Branch)Xiamen 361015, Fujian, China
| | - Zhiming Wu
- Department of Urology, Sun Yat-sen University Cancer CenterGuangzhou 510060, Guangdong, China
| | - Guoxiong Xu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan UniversityShanghai 201508, China
| | - Gang Chen
- Department of Urology, Jinshan Hospital, Fudan UniversityShanghai 201508, China
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BMSCs overexpressed ISL1 reduces the apoptosis of islet cells through ANLN carrying exosome, INHBA, and caffeine. Cell Mol Life Sci 2022; 79:538. [DOI: 10.1007/s00018-022-04571-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/28/2022] [Accepted: 09/22/2022] [Indexed: 11/24/2022]
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Cui Z, Mo J, Song P, Wang L, Wang R, Cheng F, Wang L, Zou F, Guan X, Zheng N, Yang X, Wang W. Comprehensive bioinformatics analysis reveals the prognostic value, predictive value, and immunological roles of ANLN in human cancers. Front Genet 2022; 13:1000339. [PMID: 36199577 PMCID: PMC9527346 DOI: 10.3389/fgene.2022.1000339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/23/2022] [Indexed: 11/15/2022] Open
Abstract
Anillin (ANLN) is a unique scaffolding, actin-binding protein, which is essential for the integrity and ingression of the cleavage furrow. It is mainly involved in the cytokinesis process, while its role in various tumors has not been fully addressed and remains largely elusive. To provide a thorough perspective of ANLN’s roles among diverse malignancies, we conducted a comprehensive, pan-cancer analysis about ANLN, including but not limited to gene expression levels, prognostic value, biological functions, interacting proteins, immune-related analysis, and predictive value. As a result, when compared to normal tissues, ANLN expression is elevated in most cancers, and its expression also differs in different immune subtypes and molecular subtypes in diverse cancers. In addition, in 17 types of cancer, ANLN expression is increased in early tumor stages, and higher ANLN expression predicts worse survival outcomes in more than ten cancers. Furthermore, ANLN shows close correlations with the infiltration levels of most immune cells, and enrichment analysis using ANLN co-expressed genes reveals that ANLN plays essential roles in cell cycle, mitosis, cellular senescence, and p53 signaling pathways. In the final, ANLN exhibits high accuracy in predicting many cancers, and subsequent multivariate analysis suggests ANLN could be an independent prognostic factor in specific cancer types. Taken together, ANLN is proved to be a novel and promising biomarker for its excellent predictive utility, promising prognostic value, and potential immunological roles in pan-cancer. Targeting ANLN might be an attractive approach to tumor treatment.
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Affiliation(s)
- Zhiwei Cui
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jiantao Mo
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Ping Song
- Department of Gastroenterology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Lijun Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Rongli Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Feiyan Cheng
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Lihui Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Fan Zou
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Xin Guan
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Nini Zheng
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Xinyuan Yang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Wei Wang, ; Xinyuan Yang,
| | - Wei Wang
- Department of Anesthesiology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Wei Wang, ; Xinyuan Yang,
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Yang C, Liu L, Gao C, Zhang G, Zhang Y, Zhang S, Li J, Liu Y. Circ_0,007,331 Promotes the PTX Resistance and Progression of Breast Cancer via miR-200b-3p/ANLN. J Surg Res 2022; 279:619-632. [PMID: 35926312 DOI: 10.1016/j.jss.2022.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 10/31/2022]
Abstract
INTRODUCTION The objective of our study was to explore the expression pattern of circular ribonucleic acid (RNA)_0,007,331 (circ_0,007,331) in breast cancer (BC) and its functional association with cellular paclitaxel (PTX) resistance and proliferation, migration, invasion and apoptosis. METHODS Real-time quantitative polymerase chain reaction was applied to measure RNA expression. The PTX resistance of BC cells was analyzed by cell counting kit-8 assay. Flow cytometry was applied to assess cell cycle progression and cell apoptosis. Transwell assays were utilized to analyze cell migration and invasion abilities. Protein expression was determined by Western blot assay. The target relationship between microRNA-200b-3p (miR-200b-3p) and circ_0,007,331 or Anillin (ANLN) was verified by dual-luciferase reporter assay and RNA-pull down assay. The in vivo role of circ_0,007,331 was analyzed using xenograft tumor model. RESULTS Circ_0,007,331 expression was elevated in PTX-resistant BC cell lines relative to parental BC cell lines. Circ_0,007,331 contributed to the PTX resistance, proliferation, migration, invasion and suppressed the apoptosis of BC cells. Circ_0,007,331 interacted with miR-200b-3p in BC cells. Circ_0,007,331 silencing-mediated effects in BC cells were largely overturned by the knockdown of miR-200b-3p. ANLN was a target of miR-200b-3p in BC cells. Circ_0,007,331 silencing reduced ANLN expression partly through upregulating miR-200b-3p in BC cells. miR-200b-3p overexpression-induced effects in BC cells were largely counteracted by the accumulation of ANLN. Circ_0,007,331 silencing aggravated PTX-mediated inhibitory effect on tumor growth in vivo. CONCLUSIONS Circ_0,007,331 contributed to the PTX resistance, proliferation and motility and inhibited the apoptosis of BC cells through mediating miR-200b-3p/ANLN signaling.
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Affiliation(s)
- Chao Yang
- Department of Breast Cancer, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Liang Liu
- Department of Tumor Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Chao Gao
- Department of Radiotherapy, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Geng Zhang
- Department of Breast Cancer, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yanshou Zhang
- Department of Breast Cancer, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Shuo Zhang
- Department of Breast Cancer, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Jingping Li
- Department of Breast Cancer, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yunjiang Liu
- Department of Breast Cancer, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
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Gong X, Li N, Sun C, Li Z, Xie H. A Four-Gene Prognostic Signature Based on the TEAD4 Differential Expression Predicts Overall Survival and Immune Microenvironment Estimation in Lung Adenocarcinoma. Front Pharmacol 2022; 13:874780. [PMID: 35600867 PMCID: PMC9114646 DOI: 10.3389/fphar.2022.874780] [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: 02/13/2022] [Accepted: 04/08/2022] [Indexed: 12/24/2022] Open
Abstract
Background: TEA domain transcription factor 4 (TEAD4) is a member of the transcriptional enhancer factor (TEF) family of transcription factors, which is studied to be linked to the tumorigenesis and progression of various forms of cancers, including lung adenocarcinoma (LUAD). However, the specific function of this gene in the progression of LUAD remains to be explored. Method: A total of 19 genes related to the Hippo pathway were analyzed to identify the significant genes involved in LUAD progression. The TCGA-LUAD data (n = 585) from public databases were mined, and the differentially expressed genes (DEGs) in patients with the differential level of TEAD4 were identified. The univariate Cox regression, zero LASSO regression coefficients, and multivariate Cox regression were performed to identify the independent prognostic signatures. The immune microenvironment estimation in the two subgroups, including immune cell infiltration, HLA family genes, and immune checkpoint genes, was assessed. The Gene Set Enrichment Analysis (GSEA) and GO were conducted to analyze the functional enrichment of DEGs between the two risk groups. The potential drugs for the high-risk subtypes were forecasted via the mode of action (moa) module of the connectivity map (CMap) database. Results:TEAD4 was found to be significantly correlated with poor prognosis in LUAD-patients. A total of 102 DEGs in TEAD4-high vs. TEAD4-low groups were identified. Among these DEGs, four genes (CPS1, ANLN, RHOV, and KRT6A) were identified as the independent prognostic signature to conduct the Cox risk model. The immune microenvironment estimation indicated a strong relationship between the high TEAD4 expression and immunotherapeutic resistance. The GSEA and GO showed that pathways, including cell cycle regulation, were enriched in the high-risk group, while immune response-related and metabolism biological processes were enriched in the low-risk group. Several small molecular perturbagens targeting CFTR or PLA2G1B, by the mode of action (moa) modules of the glucocorticoid receptor agonist, cyclooxygenase inhibitor, and NFkB pathway inhibitor, were predicted to be suited for the high-risk subtypes based on the high TEAD4 expression. Conclusion: The current study revealed TEAD4 is an immune regulation–related predictor of prognosis and a novel therapeutic target for LUAD.
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Affiliation(s)
- Xiaoxia Gong
- School of Life Science and Technology, MOE Key Laboratory of Developmental Genes and Human Diseases, Southeast University, Nanjing, China
| | - Ning Li
- Cardiovascular Department, Qingdao Hiser Hospital Affiliated to Qingdao University, Qingdao, China
| | - Chen Sun
- Hematology Department, Qingdao Hiser Hospital Affiliated to Qingdao University, Qingdao, China
| | - Zhaoshui Li
- Qingdao Medical College, Qingdao University, Qingdao, China
| | - Hao Xie
- School of Life Science and Technology, MOE Key Laboratory of Developmental Genes and Human Diseases, Southeast University, Nanjing, China
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Xiao Y, Deng Z, Li Y, Wei B, Chen X, Zhao Z, Xiu Y, Hu M, Alahdal M, Deng Z, Wang D, Liu J, Li W. ANLN and UBE2T are prognostic biomarkers associated with immune regulation in breast cancer: a bioinformatics analysis. Cancer Cell Int 2022; 22:193. [PMID: 35578283 PMCID: PMC9109316 DOI: 10.1186/s12935-022-02611-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 05/09/2022] [Indexed: 05/02/2023] Open
Abstract
OBJECTIVES To screen and verify differential genes affecting the prognosis of breast cancer. METHODS Breast cancer gene expression datasets were downloaded from the GEO database, and original data were analyzed in R. The TIMER database was used to analyze the relationship between ANLN and UBE2T and immune cell infiltration. RESULTS Ten hub-key genes were identified, and survival analysis showed that UBE2T and ANLN were upregulated in breast cancer and their upregulation was associated with a poor prognosis. ANLN and UBE2T upregulation was associated with the prevalence of Th1 and Th2 cells, shifting the Th1/Th2 balance to Th2 in Basal and Luminal-B breast cancers, which indicates a poor prognosis (P < 0.05). CONCLUSION ANLN and UBE2T are potential biomarkers for predicting the prognosis of breast cancer.
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Affiliation(s)
- Yu Xiao
- Department of Breast and Thyroid Surgery, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, Shenzhen, 518000, China
| | - Zhiqin Deng
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, 3002 Sungang West Road, Shenzhen, 518000, China
| | - Yongshen Li
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, 3002 Sungang West Road, Shenzhen, 518000, China
| | - Baoting Wei
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, 3002 Sungang West Road, Shenzhen, 518000, China
| | - Xiaoqiang Chen
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, 3002 Sungang West Road, Shenzhen, 518000, China
| | - Zhe Zhao
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, 3002 Sungang West Road, Shenzhen, 518000, China
| | - Yingjie Xiu
- Department of Pathology, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, Shenzhen, 518000, China
| | - Meifang Hu
- Department of Pathology, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, Shenzhen, 518000, China
| | - Murad Alahdal
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, 3002 Sungang West Road, Shenzhen, 518000, China
| | - Zhenhan Deng
- Department of Sports Medicine, Shenzhen Second People's Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518000, Guangdong, China
| | - Daping Wang
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, 3002 Sungang West Road, Shenzhen, 518000, China.,Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jianquan Liu
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, 3002 Sungang West Road, Shenzhen, 518000, China.
| | - Wencui Li
- Hand and Foot Surgery Department, Shenzhen Second People's Hospital/The First Hospital Affiliated to Shenzhen University, 3002 Sungang West Road, Shenzhen, 518000, China.
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Alternatively spliced ANLN isoforms synergistically contribute to the progression of head and neck squamous cell carcinoma. Cell Death Dis 2021; 12:764. [PMID: 34344861 PMCID: PMC8333361 DOI: 10.1038/s41419-021-04063-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/22/2021] [Accepted: 07/27/2021] [Indexed: 12/11/2022]
Abstract
Head and neck squamous cell carcinoma (HNSCC) is a common cancer with high mortality. Anilin actin-binding protein (ANLN) has been reported to be associated with carcinogenesis in multiple tumors. However, the expression pattern and functional effects of ANLN in HNSCC remain to be unclear. Clinical data and online databases were used to analyze the expression of ANLN and its relationship with HNSCC patient survival. Expression of two major splice variants of ANLN was assessed in HNSCC tissues and cell lines. The functional effects and related mechanisms of ANLN isoforms were investigated in HNSCC in vitro and in vivo. Our study showed that patients with high expression of ANLN had a poor prognosis. The two primary isoforms of ANLN transcripts ANLN-201 and ANLN-210 were highly expressed in HNSCC tissues and cell lines. Knockout of ANLN restrained cell proliferation, migration, and invasion of SCC-9 cells. Mechanically, ANLN-201 could interact with c-Myc to keep its protein stability, thereby playing a oncogenic role in HNSCC. ANLN-210 could be transferred to macrophages via exosomes by binding to RNA-binding protein hnRNPC. Exosomal ANLN-210 promoted macrophage polarization via PTEN/PI3K/Akt signaling pathway, thus stimulating tumor growth of HNSCC. ANLN was an independent prognostic factor in patients with HNSCC. Alternatively spliced ANLN isoforms collaboratively promote HNSCC tumorigenesis in vitro and in vivo, which might provide the in-depth role and mechanism of ANLN in HNSCC development.
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Wang X, Yan J, Shen B, Wei G. Integrated Chromatin Accessibility and Transcriptome Landscapes of Doxorubicin-Resistant Breast Cancer Cells. Front Cell Dev Biol 2021; 9:708066. [PMID: 34395436 PMCID: PMC8363264 DOI: 10.3389/fcell.2021.708066] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 07/12/2021] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Doxorubicin is one of the most effective chemotherapeutic drugs for breast cancer while its common drug resistance leads to poor patient prognosis and survival. Growing evidence indicate dynamically reorganized chromatin allows rapid access of the gene regulatory machinery to open genomic regions facilitating subsequent gene expression through direct transcription factor (TF) activation and regulatory element binding. METHODS To better understand the regulatory network underlying doxorubicin resistance in breast cancer cells, we explored the systematic alterations of chromatin accessibility and gene expression by the assay for transposase-accessible chromatin using sequencing (ATAC-seq) in combination with RNA sequencing, followed by integrative analysis to identify potential regulators and their targets associated with differentially accessible regions (DARs) in doxorubicin-resistant MCF7 (MCF7-DR) cells. RESULTS A total of 3,963 differentially expressed genes (DEGs) related to doxorubicin resistance were identified, including dramatically up-regulated MT1E, GSTP1, LDHB, significantly down-regulated TFF1, UBB, DSCAM-AS1, and histone-modifying enzyme coding genes HDAC2, EZH2, PRMT5, etc. By integrating with transcriptomic datasets, we identified 18,228 DARs in MCF7-DR cells compared to control, which were positively correlated with their nearest DEGs (r = 0.6). There were 11,686 increased chromatin-accessible regions, which were enriched in up-regulated genes related to diverse KEGG pathways, such as the cell cycle, regulation of actin cytoskeleton, signaling pathways of MAPK, PI3K/Akt and Hippo, which play essential roles in regulating cell apoptosis, proliferation, metabolism, and inflammatory responses. The 6,542 decreased chromatin-accessible regions were identified for the declined doxorubicin-associated biological processes, for instance, endocrine and insulin resistance, central carbon metabolism, signaling pathways of TGF-beta and P53. Combining data from TCGA, analyses of the DAR sequences associated with the DNA-binding motifs of significantly enriched TF families including AP-1, TEAD and FOX, indicated that the loss-function of FOXA1 might play a critical role in doxorubicin-resistant breast cancer cells (DOX-R BCCs). CONCLUSION These data exhibit the non-genetic landscape of chromatin accessibility and transcript levels in the DOX-R BCCs, and provide clear insights and resources for the detection of critical TFs and potential cis-regulatory elements-based putative therapeutic targets.
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Affiliation(s)
- Xuelong Wang
- Department of General Surgery, Pancreatic Disease Center, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Jizhou Yan
- Department of Developmental Biology, Institute for Marine Biosystem and Neurosciences, Shanghai Ocean University, Shanghai, China
| | - Baiyong Shen
- Department of General Surgery, Pancreatic Disease Center, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
- Research Institute of Pancreatic Diseases, Shanghai JiaoTong University School of Medicine, Shanghai, China
- Institute of Translational Medicine, Shanghai JiaoTong University, Shanghai, China
| | - Gang Wei
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
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