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Li M, Lin C, Cai Z. Downregulation of the long noncoding RNA DSCR9 (Down syndrome critical region 9) delays breast cancer progression by modulating microRNA-504-5p-dependent G protein-coupled receptor 65. Hum Cell 2023:10.1007/s13577-023-00916-4. [PMID: 37248366 DOI: 10.1007/s13577-023-00916-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 05/08/2023] [Indexed: 05/31/2023]
Abstract
Possible roles of long noncoding RNAs (lncRNAs) in cancer stem cells (CSCs) have often been reported. Here, we focused on the regulatory function of the lncRNA Down syndrome critical region 9 (DSCR9) in breast cancer stem cells (BCSCs). Through bioinformatics analysis, DSCR9, microRNA-504-5p (miR-504-5p), and G protein-coupled receptor 65 (GPR65) were identified as targets implicated in breast cancer development. Then, clinical tissue samples, breast cancer cells, and isolated BCSCs were used to determine the expression of DSCR9, miR-504-5p, and GPR65. The results confirmed the overexpression of DSCR9 and GPR65 but low expression of miR-504-5p in breast cancer tissues and cells as well as in BCSCs. Following mechanistic investigation, it was found that DSCR9 targeted miR-504-5p, and that silencing DSCR9 inhibited the proliferation of BCSCs by elevating the expression of miR-504-5p. Additionally, miR-504-5p targeted GPR65 and inhibited its expression. Moreover, GPR65 activated the MEK/ERK signaling pathway to regulate BCSC proliferation. Finally, animal study verified that depletion of DSCR9 inhibited the proliferation of BCSCs in vivo and that BCSC proliferation was restored by overexpression of GPR65. Altogether, our findings revealed that DSCR9 elevated GPR65 expression by targeting miR-504-5p to exacerbate breast cancer, highlighting a new treatment modality for breast cancer.
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Affiliation(s)
- Mingzhu Li
- Area N4 of Surgical Oncology, Quanzhou First Hospital Affiliated Fujian Medical University, No. 1028, Anji South Road, Fengze District, Quanzhou, 362000, Fujian Province, China.
| | - Conglin Lin
- Area N4 of Surgical Oncology, Quanzhou First Hospital Affiliated Fujian Medical University, No. 1028, Anji South Road, Fengze District, Quanzhou, 362000, Fujian Province, China
| | - Zhibing Cai
- Area N4 of Surgical Oncology, Quanzhou First Hospital Affiliated Fujian Medical University, No. 1028, Anji South Road, Fengze District, Quanzhou, 362000, Fujian Province, China
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Huang Y, Mo W, Ding X, Ding Y. Long non-coding RNAs in breast cancer stem cells. Med Oncol 2023; 40:177. [PMID: 37178429 DOI: 10.1007/s12032-023-02046-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023]
Abstract
Breast cancer, one of the most commonly diagnosed cancers worldwide, is a heterogeneous disease with high rates of recurrence and metastasis that contribute to its high mortality rate. Breast cancer stem cells (BCSCs) are a small but significant subset of heterogeneous breast cancer cells that possess stem cell characteristics such as self-renewal and differentiation abilities that may drive metastasis and recurrence. Long non-coding RNAs (lncRNAs) are a class of RNAs that are longer than 200 nucleotides in length and do not possess protein-coding properties. An increasing number of studies have shown that some lncRNAs are abnormally expressed in BCSCs, and have great biological significance in the occurrence, progression, invasion, and metastasis of various cancers. However, the importance of lncRNAs, as well as the molecular mechanisms that regulate and promote the stemness of BCSCs, are still poorly understood. In the current review, we aim to summarize recent studies that highlight the role of lncRNAs in tumor occurrence and progression through BCSCs. In addition, the utility of lncRNAs as biomarkers of breast cancer progression, and their potential use as therapeutic targets for treatment of breast cancer, will be discussed.
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Affiliation(s)
- Yuting Huang
- Department of Oncology, Wenzhou Medical University, Wenzhou, 325035, China
- Department of Breast Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, Zhejiang, China
| | - Wenju Mo
- Department of Breast Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, Zhejiang, China
| | - Xiaowen Ding
- Department of Breast Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, Zhejiang, China.
| | - Yuqin Ding
- Department of Breast Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, Zhejiang, China.
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Ji Y, Wang L, Chang G, Yan J, Dai L, Ji Z, Liu J, He M, Xu H, Zhang L. Mir-421 and mir-550a-1 are potential prognostic markers in esophageal adenocarcinoma. Biol Direct 2023; 18:5. [PMID: 36829221 PMCID: PMC9951500 DOI: 10.1186/s13062-022-00352-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 11/24/2022] [Indexed: 02/26/2023] Open
Abstract
OBJECTIVE To identify the prognostic indicators of esophageal adenocarcinoma (EAC) for future EAC diagnosis and treatment. METHODS The EAC dataset from The Cancer Genome Atlas was screened for differentially expressed microRNAs (miRNAs) and mRNAs associated with EAC. Weighted gene coexpression network analysis was performed to cluster miRNAs or mRNA with similar expression patterns to identify the miRNAs or mRNA that are highly associated with EAC. Prognostic miRNAs for overall survival (OS) were identified using Cox proportional-hazards regression analysis and least absolute shrinkage and selection operator based on survival duration and status. Two types of miRNAs were selected to develop a prognostic signature model for EAC using multiple Cox regression analysis. Furthermore, the signature was validated using internal validation sets 1 and 2. The receiver operating characteristic curve and concordance index were used to evaluate the accuracy of the signature and validation sets. The expression of miR-421, miR-550a-3p, and miR-550a-5p was assessed using quantitative polymerase chain reaction (qPCR). The proliferation, invasion, and migration of EAC cells were assessed using CCK8 and transwell assays. The OS of target mRNAs was assessed using Kaplan-Meier analysis. Functional enrichment analysis of the target mRNAs was performed using Metascape. RESULTS The prognostic signature and validation sets comprising mir-421 and mir-550a-1 had favorable predictive power in OS. Compared with the patients with EAC in the high-expression group, those assigned to the low-expression group displayed increased OS according to survival analysis. Differential and qPCR analysis showed that miR-421, miR-550a-3p, and miR-550a-5p were highly expressed in the EAC tissues and cell lines. Moreover, the downregulation of miR-421 and miR-550a-3p with inhibitor markedly suppressed the proliferation, invasion, and migration in OE33 cells compared with the negative control. A total of 20 target mRNAs of three miRNAs were predicted, among which seven target mRNAs-ASAP3, BCL2L2, LMF1, PPM1L, PTPN21, SLC18A2, and NR3C2-had prognostic value; PRKACB, PDCD4, RPS6KA5, and BCL2L2 were enriched in the miRNA cancer pathway. CONCLUSION Prognostic indicators of EAC may be useful in future EAC diagnosis and treatment.
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Affiliation(s)
- Yun Ji
- BGI College, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450007, China.,Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450052, China.,Laboratory of Tumor Molecular Biomarkers, Zhengzhou University, Zhengzhou, 450000, China.,Center For Disease Control And Prevention, Health Bureau of Menglian Daizu Lahuzu Wazu Autonomous County, Pu'er Menglian, 665800, China
| | - Lulu Wang
- BGI College, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450007, China.,Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450052, China.,Laboratory of Tumor Molecular Biomarkers, Zhengzhou University, Zhengzhou, 450000, China
| | - Guanglei Chang
- BGI College, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450007, China.,Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450052, China.,Laboratory of Tumor Molecular Biomarkers, Zhengzhou University, Zhengzhou, 450000, China
| | - Juan Yan
- BGI College, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450007, China.,Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450052, China.,Laboratory of Tumor Molecular Biomarkers, Zhengzhou University, Zhengzhou, 450000, China
| | - Liping Dai
- BGI College, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450007, China.,Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450052, China.,Laboratory of Tumor Molecular Biomarkers, Zhengzhou University, Zhengzhou, 450000, China
| | - Zhenyu Ji
- BGI College, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450007, China.,Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450052, China.,Laboratory of Tumor Molecular Biomarkers, Zhengzhou University, Zhengzhou, 450000, China
| | - Jingjing Liu
- BGI College, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450007, China.,Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450052, China.,Laboratory of Tumor Molecular Biomarkers, Zhengzhou University, Zhengzhou, 450000, China
| | - Meixia He
- BGI College, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450007, China.,Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450052, China.,Laboratory of Tumor Molecular Biomarkers, Zhengzhou University, Zhengzhou, 450000, China
| | - Hongliang Xu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450000, China
| | - Liguo Zhang
- BGI College, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450007, China. .,Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, No. 40 Daxue Road, Zhengzhou, 450052, China. .,Laboratory of Tumor Molecular Biomarkers, Zhengzhou University, Zhengzhou, 450000, China.
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Kashyap D, Sharma R, Goel N, Buttar HS, Garg VK, Pal D, Rajab K, Shaikh A. Coding roles of long non-coding RNAs in breast cancer: Emerging molecular diagnostic biomarkers and potential therapeutic targets with special reference to chemotherapy resistance. Front Genet 2023; 13:993687. [PMID: 36685962 PMCID: PMC9852779 DOI: 10.3389/fgene.2022.993687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 11/07/2022] [Indexed: 01/08/2023] Open
Abstract
Dysregulation of epigenetic mechanisms have been depicted in several pathological consequence such as cancer. Different modes of epigenetic regulation (DNA methylation (hypomethylation or hypermethylation of promotor), histone modifications, abnormal expression of microRNAs (miRNAs), long non-coding RNAs, and small nucleolar RNAs), are discovered. Particularly, lncRNAs are known to exert pivot roles in different types of cancer including breast cancer. LncRNAs with oncogenic and tumour suppressive potential are reported. Differentially expressed lncRNAs contribute a remarkable role in the development of primary and acquired resistance for radiotherapy, endocrine therapy, immunotherapy, and targeted therapy. A wide range of molecular subtype specific lncRNAs have been assessed in breast cancer research. A number of studies have also shown that lncRNAs may be clinically used as non-invasive diagnostic biomarkers for early detection of breast cancer. Such molecular biomarkers have also been found in cancer stem cells of breast tumours. The objectives of the present review are to summarize the important roles of oncogenic and tumour suppressive lncRNAs for the early diagnosis of breast cancer, metastatic potential, and chemotherapy resistance across the molecular subtypes.
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Affiliation(s)
- Dharambir Kashyap
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Riya Sharma
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Neelam Goel
- Department of Information Technology, University Institute of Engineering & Technology, Panjab University, Chandigarh, India
| | - Harpal S. Buttar
- Department of Pathology and Laboratory Medicine, University of Ottawa, Faculty of Medicine, Ottawa, ON, Canada
| | - Vivek Kumar Garg
- Department of Medical Lab Technology, University Institute of Applied Health Sciences, Chandigarh University, Gharuan, Mohali, India,*Correspondence: Vivek Kumar Garg, ; Asadullah Shaikh,
| | - Deeksha Pal
- Department of Translational and Regenerative Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Khairan Rajab
- College of Computer Science and Information Systems, Najran University, Najran, Saudi Arabia
| | - Asadullah Shaikh
- College of Computer Science and Information Systems, Najran University, Najran, Saudi Arabia,*Correspondence: Vivek Kumar Garg, ; Asadullah Shaikh,
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Regulation of the Cancer Stem Phenotype by Long Non-Coding RNAs. Cells 2022; 11:cells11152352. [PMID: 35954194 PMCID: PMC9367355 DOI: 10.3390/cells11152352] [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: 07/04/2022] [Revised: 07/21/2022] [Accepted: 07/24/2022] [Indexed: 11/17/2022] Open
Abstract
Cancer stem cells are a cell population within malignant tumors that are characterized by the ability to self-renew, the presence of specific molecules that define their identity, the ability to form malignant tumors in vivo, resistance to drugs, and the ability to invade and migrate to other regions of the body. These characteristics are regulated by various molecules, such as lncRNAs, which are transcripts that generally do not code for proteins but regulate multiple biological processes through various mechanisms of action. LncRNAs, such as HOTAIR, H19, LncTCF7, LUCAT1, MALAT1, LINC00511, and FMR1-AS1, have been described as key regulators of stemness in cancer, allowing cancer cells to acquire this phenotype. It has been proposed that cancer stem cells are clinically responsible for the high recurrence rates after treatment and the high frequency of metastasis in malignant tumors, so understanding the mechanisms that regulate the stem phenotype could have an impact on the improvement of cancer treatments.
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Zhang M, Gao F, Yu X, Zhang Q, Sun Z, He Y, Guo W. LINC00261: a burgeoning long noncoding RNA related to cancer. Cancer Cell Int 2021; 21:274. [PMID: 34022894 PMCID: PMC8141177 DOI: 10.1186/s12935-021-01988-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 05/15/2021] [Indexed: 02/07/2023] Open
Abstract
Long noncoding RNAs (lncRNAs), are transcripts longer than 200 nucleotides that are considered to be vital regulators of many cellular processes, particularly in tumorigenesis and cancer progression. long intergenic non-protein coding RNA 261 (LINC00261), a recently discovered lncRNA, is abnormally expressed in a variety of human malignancies, including pancreatic cancer, gastric cancer, colorectal cancer, lung cancer, hepatocellular carcinoma, breast cancer, laryngeal carcinoma, endometrial carcinoma, esophageal cancer, prostate cancer, choriocarcinoma, and cholangiocarcinoma. LINC00261 mainly functions as a tumor suppressor that regulates a variety of biological processes in the above-mentioned cancers, such as cell proliferation, apoptosis, motility, chemoresistance, and tumorigenesis. In addition, the up-regulation of LINC00261 is closely correlated with both favorable prognoses and many clinical characteristics. In the present review, we summarize recent research documenting the expression and biological mechanisms of LINC00261 in tumor development. These findings suggest that LINC00261, as a tumor suppressor, has bright prospects both as a biomarker and a therapeutic target.
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Affiliation(s)
- Menggang Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshedong Road, Erqi District, Zhengzhou, 450052, China
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Open and Key Laboratory of Hepatobiliary & Pancreatic Surgery and Digestive Organ, Transplantation at Henan Universities, 450052, Zhengzhou, China
- Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, 450052, China
| | - Fang Gao
- Health Management Center, Binzhou People's Hospital, Binzhou, 256600, China
| | - Xiao Yu
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshedong Road, Erqi District, Zhengzhou, 450052, China
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Open and Key Laboratory of Hepatobiliary & Pancreatic Surgery and Digestive Organ, Transplantation at Henan Universities, 450052, Zhengzhou, China
- Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, 450052, China
| | - Qiyao Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshedong Road, Erqi District, Zhengzhou, 450052, China
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
- Open and Key Laboratory of Hepatobiliary & Pancreatic Surgery and Digestive Organ, Transplantation at Henan Universities, 450052, Zhengzhou, China
- Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, 450052, China
| | - Zongzong Sun
- Department of Obstetrics and Gynaecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Yuting He
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshedong Road, Erqi District, Zhengzhou, 450052, China.
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
- Open and Key Laboratory of Hepatobiliary & Pancreatic Surgery and Digestive Organ, Transplantation at Henan Universities, 450052, Zhengzhou, China.
- Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, 450052, China.
| | - Wenzhi Guo
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshedong Road, Erqi District, Zhengzhou, 450052, China.
- Key Laboratory of Hepatobiliary and Pancreatic Surgery and Digestive Organ Transplantation of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
- Open and Key Laboratory of Hepatobiliary & Pancreatic Surgery and Digestive Organ, Transplantation at Henan Universities, 450052, Zhengzhou, China.
- Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, 450052, China.
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