151
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Gao L, Shen K, Yin N, Jiang M. Comprehensive Transcriptomic Analysis Reveals Dysregulated Competing Endogenous RNA Network in Endocrine Resistant Breast Cancer Cells. Front Oncol 2020; 10:600487. [PMID: 33324567 PMCID: PMC7723334 DOI: 10.3389/fonc.2020.600487] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 10/26/2020] [Indexed: 12/12/2022] Open
Abstract
Background Tamoxifen and fulvestrant, both approved for endocrine therapy, have remarkably increased the prognosis of hormone receptor-positive breast cancer patients. However, acquired resistance to endocrine therapy greatly reduces its clinical efficacy. Accumulating evidence suggests a pivotal role of non-coding RNAs (ncRNAs) in breast cancer endocrine resistance, but the specific functions of ncRNAs in tamoxifen and fulvestrant resistance remain largely unknown. Methods Microarray analysis was performed for endocrine therapy sensitive (MCF-7), tamoxifen-resistant (LCC2), and dual tamoxifen and fulvestrant-resistant (LCC9) breast cancer cells. Gene ontology and pathway analysis were conducted for functional prediction of the unannotated differentially expressed ncRNAs. Competing endogenous RNA regulatory networks were constructed. Results We discovered a total of 3,129 long non-coding RNAs (lncRNAs), 13,556 circular RNAs (circRNAs), 132 microRNAs, and 3358 mRNAs that were significantly differentially expressed. We constructed co-expression networks for lncRNA-mRNA, circRNA-mRNA, and microRNA-mRNA. In addition, we established lncRNA-microRNA-mRNA and circRNA-microRNA-mRNA regulatory networks to depict ncRNA crosstalk and transcriptomic regulation of endocrine resistance. Conclusions Our study delineates a comprehensive profiling of ncRNAs in tamoxifen and fulvestrant resistant breast cancer cells, which enriches our understanding of endocrine resistance and sheds new light on identifying novel endocrine resistance biomarkers and potential therapeutic targets to overcome endocrine resistance.
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Affiliation(s)
- Liang Gao
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Kunwei Shen
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ni Yin
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Min Jiang
- Department of Oncology, The First Affiliated Hospital of Soochow University, Suzhou, China
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152
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Cai J, Sun H, Zheng B, Xie M, Xu C, Zhang G, Huang X, Zhuang J. Curcumin attenuates lncRNA H19‑induced epithelial‑mesenchymal transition in tamoxifen‑resistant breast cancer cells. Mol Med Rep 2020; 23:13. [PMID: 33179087 PMCID: PMC7673326 DOI: 10.3892/mmr.2020.11651] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 10/06/2020] [Indexed: 12/13/2022] Open
Abstract
The H19 long non-coding RNA is involved in the development of tamoxifen resistance in breast cancer. However, the relationship between H19 and the metastatic potential and treatment options for tamoxifen-resistant (TAMR) breast cancer is not completely understood. Curcumin inhibits cellular proliferation, migration and invasiveness in several cancer types, including pancreatic cancer, breast cancer and chronic myeloid leukemia. The present study aimed to investigate the role of H19 in MCF-7/TAMR cell epithelial-mesenchymal transition (EMT), migration and invasiveness, and to assess the ability of curcumin to inhibit H19-mediated effects. Reverse transcription-quantitative PCR and western blot analysis were conducted to detect the gene or protein expression. Cell Counting Kit-8, wound healing and Transwell invasion assays were performed to estimate the capabilities of cell viability, invasion and migration. H19 overexpression enhanced MCF-7/TAMR cell EMT, invasion and migration by upregulating Snail. Furthermore, curcumin notably decreased the expression levels of epithelial marker E-cadherin and markedly increased the expression levels of mesenchymal marker N-cadherin in MCF-7/TAMR cells compared with the control group. In addition, following treatment with curcumin for 48 h, H19 expression was decreased in a dose-dependent manner. Moreover, curcumin treatment for 48 h significantly attenuated H19-induced alterations in N-cadherin and E-cadherin expression levels. Curcumin also prevented H19-induced invasion and migration. The present study indicated that H19 may serve as a promoting factor of EMT, invasion and migration in MCF-7/TAMR cells, suggesting that curcumin may prevent H19-associated metastasis. Therefore, curcumin may serve as a promising therapeutic drug for patients with TAMR breast cancer.
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Affiliation(s)
- Jiaqin Cai
- Department of Pharmacy, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Hong Sun
- Department of Pharmacy, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Bin Zheng
- Department of Pharmacy, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Mumu Xie
- Department of Pharmacy, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Chenxia Xu
- Department of Pharmacy, Fujian Medical University Union Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Guifeng Zhang
- Department of Pharmacy, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Xuhui Huang
- Department of Pharmacy, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, Fujian 350001, P.R. China
| | - Jie Zhuang
- Department of Pharmacy, Shengli Clinical Medical College of Fujian Medical University, Fujian Provincial Hospital, Fuzhou, Fujian 350001, P.R. China
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153
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Guo R, Huang Y, Liu H, Zheng Y, Jia L, Li W. Long Non-Coding RNA H19 Participates in Periodontal Inflammation via Activation of Autophagy. J Inflamm Res 2020; 13:635-646. [PMID: 33061528 PMCID: PMC7536258 DOI: 10.2147/jir.s276619] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 09/12/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose Periodontitis is the leading cause of tooth loss. The role of long non-coding RNA (lncRNA) in periodontal inflammation remains unclear. The aim of this study was to investigate the role of lncRNA H19 in periodontitis and its possible regulation of autophagy in periodontitis. Material and Methods Inflammation level was determined by quantitative reverse-transcription polymerase chain reaction (qRT-PCR) and enzyme-linked immunosorbent assay (ELISA) in periodontal ligament cells (PDLCs). Western blotting, flow cytometric analysis, and immunofluorescence staining were used to detect the autophagy flux. Overexpression or knockdown of H19 was used to confirm its function. Ligature-induced periodontitis model in mice and periodontitis-affected human gingival tissue were used in vivo. RNA sequencing was performed to determine the differentially expressed genes. Results Autophagy was significantly increased in PDLCs after inflammatory stimulation as well as in a ligature-induced periodontitis model in mice and periodontitis-affected human gingival tissue. During the inflammatory process, H19 expression was also significantly upregulated. Further, the levels of autophagic markers were significantly upregulated after overexpressing H19 in PDLCs, and the increased autophagic activity induced by inflammatory stimulation was reversed by H19 knockdown. RNA sequencing showed that the expression profiles of mRNAs were significantly altered after H19 overexpression, and the differentially expressed genes were enriched in the PI3K/AKT signaling pathway, which was confirmed by the decreased p-AKT protein expression in the H19 overexpression group. Conclusion Periodontal inflammation activates autophagy flux, and H19 mediates the activation of autophagy via AKT pathway in periodontitis. This study expands our understanding of molecular regulation in periodontitis.
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Affiliation(s)
- Runzhi Guo
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China
| | - Yiping Huang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China
| | - Hao Liu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China
| | - Yunfei Zheng
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China
| | - Lingfei Jia
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China
| | - Weiran Li
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, People's Republic of China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing 100081, People's Republic of China
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154
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Wang Y, Wu Z, Li Y, Zheng Z, Yan J, Tian S, Han L. Long Non-Coding RNA H19 Promotes Proliferation, Migration and Invasion and Inhibits Apoptosis of Breast Cancer Cells by Targeting miR-491-5p/ZNF703 Axis. Cancer Manag Res 2020; 12:9247-9258. [PMID: 33061615 PMCID: PMC7532042 DOI: 10.2147/cmar.s246009] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 08/25/2020] [Indexed: 12/24/2022] Open
Abstract
Background Breast cancer is one of the most common cancers worldwide. Long non-coding RNAs and microRNAs act as important regulators in human cancers. This study aims to explore the molecular mechanism among H19, miR-491-5p and zinc finger 703 (ZNF703) in breast cancer. Materials and Methods Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted to detect the expression of H19, miR-491-5p and ZNF703. Cell Counting Kit 8 (CCK-8) assay was performed to evaluate cell proliferation. Cell apoptosis was assessed by flow cytometry assay. The number of migrated and invaded cells was counted by transwell assay. Dual luciferase reporter assay was carried out to test luciferase activity. Protein level of ZNF703 was measured by Western blot assay. Results H19 was highly expressed in breast tissues and cells. H19 knockdown inhibited proliferation, induced apoptosis and blocked migration and invasion. Moreover, H19 bound to miR-491-5p and negatively regulated miR-491-5p expression. MiR-491-5p inhibition abrogated the activities of proliferation, apoptosis, migration and invasion affected by H19 knockdown. Furthermore, miR-491-5p directly targeted ZNF703 and inversely modulated ZNF703 expression. ZNF703 up-regulation rescued the effects of miR-491-5p overexpression on proliferation, apoptosis, migration and invasion. In addition, H19 knockdown reduced ZNF703 expression by targeting miR-491-5p/ZNF703 axis. Conclusion H19 promoted proliferation, migration and invasion and retarded apoptosis of breast cancer cells via sponging miR-491-5p to down-regulate ZNF703 expression.
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Affiliation(s)
- Yongkun Wang
- Department of Thyroid Surgery, Liaocheng People's Hospital (Clinical Hospital of Shandong First Medical University) Liaocheng, Shandong, People's Republic of China
| | - Zhen Wu
- Department of Thyroid Surgery, Liaocheng People's Hospital (Clinical Hospital of Shandong First Medical University) Liaocheng, Shandong, People's Republic of China
| | - Yingxue Li
- Department of Pathology, Liaocheng People's Hospital (Clinical Hospital of Shandong First Medical University) Liaocheng, Shandong, People's Republic of China
| | - Zheng Zheng
- Department of Pathology, Liaocheng People's Hospital (Clinical Hospital of Shandong First Medical University) Liaocheng, Shandong, People's Republic of China
| | - Jinqiang Yan
- Department of Pathology, Liaocheng People's Hospital (Clinical Hospital of Shandong First Medical University) Liaocheng, Shandong, People's Republic of China
| | - Shuyan Tian
- Department of Pathology, Liaocheng People's Hospital (Clinical Hospital of Shandong First Medical University) Liaocheng, Shandong, People's Republic of China
| | - Lin Han
- Department of Pathology, Liaocheng People's Hospital (Clinical Hospital of Shandong First Medical University) Liaocheng, Shandong, People's Republic of China
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155
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Song G, Zhou J, Song R, Liu D, Yu W, Xie W, Ma Z, Gong J, Meng H, Yang T, Song Z. Long noncoding RNA H19 regulates the therapeutic efficacy of mesenchymal stem cells in rats with severe acute pancreatitis by sponging miR-138-5p and miR-141-3p. Stem Cell Res Ther 2020; 11:420. [PMID: 32977843 PMCID: PMC7519546 DOI: 10.1186/s13287-020-01940-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/09/2020] [Accepted: 09/17/2020] [Indexed: 12/14/2022] Open
Abstract
Background Patients with severe acute pancreatitis (SAP), which is characterized by high morbidity and mortality, account for an increasing medical burden worldwide. We previously found that mesenchymal stem cells (MSCs) could attenuate SAP and that expression of long noncoding RNA H19 (LncRNA H19) was upregulated in rats receiving MSCs. In the present study, we investigated the mechanisms of LncRNA H19 regulating the therapeutic efficacy of MSCs in the alleviation of SAP. Methods MSCs transfected with LncRNA H19 overexpression and knockdown plasmids were intravenously injected into rats 12 h after sodium taurocholate (NaT) administration to induce SAP. Results Overexpressing LncRNA H19 in MSCs significantly enhanced the anti-inflammatory capacity of the MSCs, inhibited autophagy via promotion of focal adhesion kinase (FAK)-associated pathways, and facilitated cell proliferation by increasing the level of β-catenin in rats with SAP. LncRNA H19 functioned as a competing endogenous RNA by sponging miR-138-5p and miR-141-3p. Knocking down miR-138-5p in MSCs increased the expression of protein tyrosine kinase 2 (PTK2, encoding FAK) to suppress autophagy, while downregulating miR-141-3p enhanced the level of β-catenin to promote cell proliferation. Conclusions In conclusion, LncRNA H19 effectively increased the therapeutic efficacy of MSCs in rats with SAP via the miR-138-5p/PTK2/FAK and miR-141-3p/β-catenin pathways.
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Affiliation(s)
- Guodong Song
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200072, China
| | - Jia Zhou
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200072, China.,Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China
| | - Ruimei Song
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200072, China
| | - Dalu Liu
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200072, China
| | - Weidi Yu
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200072, China
| | - Wangcheng Xie
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200072, China
| | - Zhilong Ma
- Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200336, China
| | - Jian Gong
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200072, China
| | - Hongbo Meng
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200072, China
| | - Tingsong Yang
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200072, China.
| | - Zhenshun Song
- Department of General Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, 200072, China.
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156
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Zhang H, Wang Y, Liu X, Li Y. Progress of long noncoding RNAs in anti-tumor resistance. Pathol Res Pract 2020; 216:153215. [PMID: 32979688 DOI: 10.1016/j.prp.2020.153215] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 09/01/2020] [Accepted: 09/08/2020] [Indexed: 12/13/2022]
Abstract
The resistance of cancer cells to anti-cancer drugs is an important reason for the failure of treatment. Overcoming drug resistance can achieve long-lasting and efficient cancer treatment. Long non-coding RNA (lncRNA) is a class of RNA molecules that does not encode protein and has more than 200 nucleotides. LncRNA not only has a regulatory role in the occurrence and development of malignant tumors, but also has been found to have a potential impact on anti-tumor resistance. Abnormal expression of lncRNA can cause tumor cells to develop resistance to anti-tumor drugs. This article reviews the recent research progress of lncRNA in various tumor resistances and the mechanism of lncRNA acting on tumor drug resistance.
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Affiliation(s)
- Hui Zhang
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Yuanyuan Wang
- Department of Respiratory and Critical Care Medicine, East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Xiaomin Liu
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, 200444, China
| | - Yanli Li
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai, 200444, China.
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157
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Alipoor B, Parvar SN, Sabati Z, Ghaedi H, Ghasemi H. An updated review of the H19 lncRNA in human cancer: molecular mechanism and diagnostic and therapeutic importance. Mol Biol Rep 2020; 47:6357-6374. [PMID: 32743775 DOI: 10.1007/s11033-020-05695-x] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 07/26/2020] [Indexed: 12/24/2022]
Abstract
Accumulating evidence has reported that H19 long non-coding RNA (lncRNA) expression level is deregulated in human cancer. It has been also demonstrated that de-regulated levels of H19 could affect cancer biology by various mechanisms including microRNA (miRNA) production (like miR-675), miRNA sponging and epigenetic modifications. Furthermore, lncRNA could act as a potential diagnosis and prognosis biomarkers and also a candidate therapeutic approach for different human cancers. In this narrative review, we shed light on the molecular mechanism of H19 in cancer development and pathogenesis. Moreover, we discussed the expression pattern and diagnostic and therapeutic importance of H19 as a potential biomarker in a range of human malignancies from breast to osteosarcoma cancer.
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Affiliation(s)
- Behnam Alipoor
- Department of Laboratory Sciences, Faculty of Paramedicine, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Seyedeh Nasrin Parvar
- Department of Biochemistry, Faculty of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Zolfaghar Sabati
- Student Research Committee, Abadan Faculty of Medical Sciences, Abadan, Iran
| | - Hamid Ghaedi
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hassan Ghasemi
- Department of Clinical Biochemistry, Abadan Faculty of Medical Sciences, Abadan, Iran.
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158
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Zhang X, Wang L, Li H, Zhang L, Zheng X, Cheng W. Crosstalk between noncoding RNAs and ferroptosis: new dawn for overcoming cancer progression. Cell Death Dis 2020; 11:580. [PMID: 32709863 PMCID: PMC7381619 DOI: 10.1038/s41419-020-02772-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 07/06/2020] [Accepted: 07/10/2020] [Indexed: 02/06/2023]
Abstract
Cancer progression including proliferation, metastasis, and chemoresistance has become a serious hindrance to cancer therapy. This phenomenon mainly derives from the innate insensitive or acquired resistance of cancer cells to apoptosis. Ferroptosis is a newly discovered mechanism of programmed cell death characterized by peroxidation of the lipid membrane induced by reactive oxygen species. Ferroptosis has been confirmed to eliminate cancer cells in an apoptosis-independent manner, however, the specific regulatory mechanism of ferroptosis is still unknown. The use of ferroptosis for overcoming cancer progression is limited. Noncoding RNAs have been found to play an important roles in cancer. They regulate gene expression to affect biological processes of cancer cells such as proliferation, cell cycle, and cell death. Thus far, the functions of ncRNAs in ferroptosis of cancer cells have been examined, and the specific mechanisms by which noncoding RNAs regulate ferroptosis have been partially discovered. However, there is no summary of ferroptosis associated noncoding RNAs and their functions in different cancer types. In this review, we discuss the roles of ferroptosis-associated noncoding RNAs in detail. Moreover, future work regarding the interaction between noncoding RNAs and ferroptosis is proposed, the possible obstacles are predicted and associated solutions are put forward. This review will deepen our understanding of the relationship between noncoding RNAs and ferroptosis, and provide new insights in targeting noncoding RNAs in ferroptosis associated therapeutic strategies.
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Affiliation(s)
- Xuefei Zhang
- Department of Ultrasonography, Harbin Medical University Cancer Hospital, 150 Haping Road, 150040, Harbin, China
| | - Lingling Wang
- Department of Ultrasonography, Harbin Medical University Cancer Hospital, 150 Haping Road, 150040, Harbin, China
| | - Haixia Li
- Department of Ultrasonography, Harbin Medical University Cancer Hospital, 150 Haping Road, 150040, Harbin, China
| | - Lei Zhang
- Department of Ultrasonography, Harbin Medical University Cancer Hospital, 150 Haping Road, 150040, Harbin, China.
| | - Xiulan Zheng
- Department of Ultrasonography, Harbin Medical University Cancer Hospital, 150 Haping Road, 150040, Harbin, China.
| | - Wen Cheng
- Department of Ultrasonography, Harbin Medical University Cancer Hospital, 150 Haping Road, 150040, Harbin, China.
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159
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Du T, Shi Y, Xu S, Wan X, Sun H, Liu B. Long Non-Coding RNAs in Drug Resistance of Breast Cancer. Onco Targets Ther 2020; 13:7075-7087. [PMID: 32764993 PMCID: PMC7382578 DOI: 10.2147/ott.s255226] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 06/12/2020] [Indexed: 12/24/2022] Open
Abstract
Breast cancer (BC) is the most common cancer and the leading cause of death in women. Advances in early diagnosis and therapeutic strategies have decreased the mortality of BC and improved the prognosis of patients to some extent. However, the development of drug resistance has limited the success rate of systemic therapies. Long non-coding RNAs (lncRNAs) are involved in drug resistance in BC via various mechanisms, which contribute to a complex regulatory network. In this review, we summarize the latest findings on the mechanisms underlying drug resistance modulated by lncRNAs in BC. In addition, we discuss the potential clinical applications of lncRNAs as targeted molecular therapy against drug resistance in BC.
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Affiliation(s)
- Tonghua Du
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Ying Shi
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Shengnan Xu
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Xiaoyu Wan
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Haiyin Sun
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Bin Liu
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
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160
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Han M, Qian X, Cao H, Wang F, Li X, Han N, Yang X, Yang Y, Dou D, Hu J, Wang W, Han J, Zhang F, Dong H. lncRNA ZNF649-AS1 Induces Trastuzumab Resistance by Promoting ATG5 Expression and Autophagy. Mol Ther 2020; 28:2488-2502. [PMID: 32735773 DOI: 10.1016/j.ymthe.2020.07.019] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 04/06/2020] [Accepted: 07/10/2020] [Indexed: 12/26/2022] Open
Abstract
The regulatory mechanism of long non-coding RNAs (lncRNAs) in trastuzumab resistance is not well established to date. In this research, we identified differentially expressed lncRNA and investigated its regulatory role in trastuzumab resistance of breast cancer. HiSeq sequencing and quantitative real-time PCR were performed to identify the dysregulated lncRNAs. Mass spectrometry, RNA fluorescence in situ hybridization (RNA-FISH), and immunoprecipitation assays were performed to identify the direct interactions between ZNF649-AS1 and other associated targets, such as polypyrimidine tract binding protein 1 (PTBP1) and autophagy related 5 (ATG5). Our results showed that ZNF649-AS1 was more highly expressed in trastuzumab-resistant cells compared to sensitive cells. Increased expression of ZNF649-AS1 was associated with a poorer response and shorter survival time of breast cancer patients. ZNF649-AS1 was upregulated by H3K27ac modification at the presence of trastuzumab treatment, and knockdown of ZNF649-AS1 reversed trastuzumab resistance via modulating ATG5 expression and autophagy. Mechanically, ZNF649-AS1 was associated with PTBP1 protein, which further promoted the transcription activity of the ATG5 gene. In conclusion, we demonstrated that H3K27ac modification-induced upregulation of ZNF649-AS1 could cause autophagy and trastuzumab resistance through associating with PTBP1 and promoting ATG5 transcription.
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Affiliation(s)
- Mingli Han
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Xueke Qian
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Hui Cao
- Department of Vascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Fang Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Xiangke Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Na Han
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Xue Yang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Yunqing Yang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Dongwei Dou
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Jianguo Hu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, China
| | - Wei Wang
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China
| | - Jing Han
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China
| | - Fan Zhang
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China
| | - Huaying Dong
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China.
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161
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Wang B, Ye Q, Zou C. Long Non-Coding RNA THOR Enhances the Stem Cell-Like Traits of Triple-Negative Breast Cancer Cells Through Activating β-Catenin Signaling. Med Sci Monit 2020; 26:e923507. [PMID: 32665537 PMCID: PMC7366791 DOI: 10.12659/msm.923507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background The oncogenic roles of lncRNA THOR have been revealed in several tumors, however, its functions in breast cancer are still unclear. Material/Methods Real-time quantitative polymerase chain reaction (RT-qPCR) was used to detect THOR expression in clinical samples and the expression of stemness regulatory factors. ALDH1 assay and sphere-formation analysis were constructed to examine the stemness of cells. Cell viability assay was constructed to determine the cell proliferation capacity. In vitro RNA-RNA interaction and messenger RNA (mRNA) stability assays were performed to explore the mechanisms. Results THOR was overexpressed in triple-negative breast cancer (TNBC) compared to that in luminal A- and B-type breast cancer. THOR silencing reduced TNBC cell stemness, which was evident by the decreased sphere-formation ability, stemness marker expression and ALDH1 activity. Mechanistically, THOR directly bound to β-catenin mRNA, enhanced β-catenin mRNA stability and thus increased its expression. Furthermore, overexpression of β-catenin partially diminished THOR silencing-mediated inhibition on TNBC cell stemness. Conclusions This work proposes that THOR facilitates TNBC cell stemness through activating β-catenin signaling.
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Affiliation(s)
- Binbin Wang
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei, China (mainland)
| | - Qiang Ye
- Center of Digestive Endoscope, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei, China (mainland)
| | - Chuantao Zou
- Department of Oncology, Suizhou Hospital, Hubei University of Medicine, Suizhou, Hubei, China (mainland)
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Olfati A, Khamisabadi H. RETRACTED ARTICLE: Ellagic Acid Improves Testicular Dysfunction via Autophagy in a Tamoxifen-Injured Rat Model. J EVOL BIOCHEM PHYS+ 2020. [DOI: 10.1134/s0022093020030096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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163
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Talebian S, Daghagh H, Yousefi B, Ȍzkul Y, Ilkhani K, Seif F, Alivand MR. The role of epigenetics and non-coding RNAs in autophagy: A new perspective for thorough understanding. Mech Ageing Dev 2020; 190:111309. [PMID: 32634442 DOI: 10.1016/j.mad.2020.111309] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 05/22/2020] [Accepted: 06/28/2020] [Indexed: 12/18/2022]
Abstract
Autophagy is a major self-degradative intracellular process required for the maintenance of homeostasis and promotion of survival in response to starvation. It plays critical roles in a large variety of physiological and pathological processes. On the other hand, aberrant regulation of autophagy can lead to various cancers and neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and Crohn's disease. Emerging evidence strongly supports that epigenetic signatures, related non-coding RNA profiles, and their cross-talking are significantly associated with the control of autophagic responses. Therefore, it may be helpful and promising to manage autophagic processes by finding valuable markers and therapeutic approaches. Although there is a great deal of information on the components of autophagy in the cytoplasm, the molecular basis of the epigenetic regulation of autophagy has not been completely elucidated. In this review, we highlight recent research on epigenetic changes through the expression of autophagy-related genes (ATGs), which regulate autophagy, DNA methylation, histone modifications as well as non-coding RNAs, including long non-coding RNAs (lncRNAs), microRNAs (miRNAs) and their relationship with human diseases, that play key roles in causing autophagy-related diseases.
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Affiliation(s)
- Shahrzad Talebian
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Daghagh
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Aging Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yusuf Ȍzkul
- Department of Medical Genetics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Khandan Ilkhani
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farhad Seif
- Department of Immunology & Allergy, Academic Center for Education, Culture, and Research, Tehran, Iran
| | - Mohammad Reza Alivand
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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164
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Özgür E, Ferhatoğlu F, Şen F, Saip P, Gezer U. Circulating lncRNA H19 may be a useful marker of response to neoadjuvant chemotherapy in breast cancer. Cancer Biomark 2020; 27:11-17. [PMID: 31640083 DOI: 10.3233/cbm-190085] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Novel biomarkers are needed to predict the effectiveness of the treatment of presurgical neoadjuvant chemotherapy (NAC) in breast cancer (BC). OBJECTIVE This is an exploratory study to assess the impact of 3 cancer-related long non-coding RNAs (lncRNAs) (H19, MALAT1 and GA5) in blood plasma of patients with BC in predicting the response to NAC. METHODS The plasma levels of RNAs were relatively measured by quantitative PCR at baseline, and at the end of the fourth cycle of NAC in patients with locally advanced BC. RESULTS Only H19 was associated with patients' characteristics, and with the response to NAC. Higher plasma expression of H19 was associated with younger age at diagnosis, triple negative tumors, and Ki-67 index. Patients with a pathological complete response (20%) had lower pre-therapeutic levels of H19 compared with the non-complete responders (relative levels 0.1 vs 0.2, respectively, P: 0.04). In addition, the patients with higher degree of downstaging of initial tumors had lower baseline levels of H19 among non-complete responders. CONCLUSION Our study reveals that H19, but not MALAT1 and GAS5, may be a useful marker of response to NAC in BC.
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Affiliation(s)
- Emre Özgür
- Department of Basic Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey
| | - Ferhat Ferhatoğlu
- Department of Medical Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey
| | | | - Pinar Saip
- Department of Medical Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey
| | - Ugur Gezer
- Department of Basic Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey
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165
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Mele L, Del Vecchio V, Liccardo D, Prisco C, Schwerdtfeger M, Robinson N, Desiderio V, Tirino V, Papaccio G, La Noce M. The role of autophagy in resistance to targeted therapies. Cancer Treat Rev 2020; 88:102043. [PMID: 32505806 DOI: 10.1016/j.ctrv.2020.102043] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 05/20/2020] [Accepted: 05/22/2020] [Indexed: 02/06/2023]
Abstract
Autophagy is a self-degradative cellular process, involved in stress response such as starvation, hypoxia, and oxidative stress. This mechanism balances macro-molecule recycling to regulate cell homeostasis. In cancer, autophagy play a role in the development and progression, while several studies describe it as one of the key processes in drug resistance. In the last years, in addition to standard anti-cancer treatments such as chemotherapies and irradiation, targeted therapy became one of the most adopted strategies in clinical practices, mainly due to high specificity and reduced side effects. However, similar to standard treatments, drug resistance is the main challenge in most patients. Here, we summarize recent studies that investigated the role of autophagy in drug resistance after targeted therapy in different types of cancers. We highlight positive results and limitations of pre-clinical and clinical studies in which autophagy inhibitors are used in combination with targeted therapies.
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Affiliation(s)
- Luigi Mele
- Department of Experimental Medicine, University of Campania "L. Vanvitelli" Naples, Italy
| | - Vitale Del Vecchio
- Department of Experimental Medicine, University of Campania "L. Vanvitelli" Naples, Italy
| | - Davide Liccardo
- Department of Experimental Medicine, University of Campania "L. Vanvitelli" Naples, Italy
| | - Claudia Prisco
- Department of Experimental Medicine, University of Campania "L. Vanvitelli" Naples, Italy; The John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK
| | - Melanie Schwerdtfeger
- Department of Experimental Medicine, University of Campania "L. Vanvitelli" Naples, Italy; Department of Medicine IV -Division of Clinical Pharmacology-University of Munich, Germany
| | - Nirmal Robinson
- Centre for Cancer Biology, SA Pathology and University of South Australia, GPO Box 2471, Adelaide, Australia
| | - Vincenzo Desiderio
- Department of Experimental Medicine, University of Campania "L. Vanvitelli" Naples, Italy
| | - Virginia Tirino
- Department of Experimental Medicine, University of Campania "L. Vanvitelli" Naples, Italy
| | - Gianpaolo Papaccio
- Department of Experimental Medicine, University of Campania "L. Vanvitelli" Naples, Italy.
| | - Marcella La Noce
- Department of Experimental Medicine, University of Campania "L. Vanvitelli" Naples, Italy
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166
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Li J, Wang X, Wang Y, Yang Q. H19 promotes the gastric carcinogenesis by sponging miR-29a-3p: evidence from lncRNA-miRNA-mRNA network analysis. Epigenomics 2020; 12:989-1002. [PMID: 32432496 DOI: 10.2217/epi-2020-0114] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim: To identify novel competing endogenous RNA (ceRNA) network correlated with the prognosis of gastric cancer (GC) patients. Materials & methods: We systematically analyzed the aberrantly expressed genes in human GC to construct a ceRNA network by using multiple bioinformatic tools. Results: Aberrantly expressed mRNAs in GC were identified. By means of stepwise reverse prediction and validation from mRNA to lncRNA, a ceRNA network comprised of H19, miR-29a-3p, COL3A1, COL5A2, COL1A2 and COL4A1 was constructed, and all genes in the network are significantly correlated with the prognosis of GC patients. Conclusion: The present study successfully constructed a GC related ceRNA network, and provided potential targets for GC clinical treatment.
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Affiliation(s)
- Jianxin Li
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Xin Wang
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Yinchun Wang
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
| | - Qingqiang Yang
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China
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167
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Brown JM, Wasson MCD, Marcato P. The Missing Lnc: The Potential of Targeting Triple-Negative Breast Cancer and Cancer Stem Cells by Inhibiting Long Non-Coding RNAs. Cells 2020; 9:E763. [PMID: 32244924 PMCID: PMC7140662 DOI: 10.3390/cells9030763] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 03/10/2020] [Accepted: 03/18/2020] [Indexed: 12/14/2022] Open
Abstract
Treatment decisions for breast cancer are based on staging and hormone receptor expression and include chemotherapies and endocrine therapy. While effective in many cases, some breast cancers are resistant to therapy, metastasize and recur, leading to eventual death. Higher percentages of tumor-initiating cancer stem cells (CSCs) may contribute to the increased aggressiveness, chemoresistance, and worse outcomes among breast cancer. This may be particularly true in triple-negative breast cancers (TNBCs) which have higher percentages of CSCs and are associated with worse outcomes. In recent years, increasing numbers of long non-coding RNAs (lncRNAs) have been identified as playing an important role in breast cancer progression and some of these have been specifically associated within the CSC populations of breast cancers. LncRNAs are non-protein-coding transcripts greater than 200 nucleotides which can have critical functions in gene expression regulation. The preclinical evidence regarding lncRNA antagonists for the treatment of cancer is promising and therefore, presents a potential novel approach for treating breast cancer and targeting therapy-resistant CSCs within these tumors. Herein, we summarize the lncRNAs that have been identified as functionally relevant in breast CSCs. Furthermore, our review of the literature and analysis of patient datasets has revealed that many of these breast CSC-associated lncRNAs are also enriched in TNBC. Together, this suggests that these lncRNAs may be playing a particularly important role in TNBC. Thus, certain breast cancer-promoting/CSC-associated lncRNAs could be targeted in the treatment of TNBCs and the CSCs within these tumors should be susceptible to anti-lncRNA therapy.
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Affiliation(s)
- Justin M Brown
- Departments of Pathology, Dalhousie University, Halifax, NS B3H 4R2, Canada; (J.M.B.); (M.-C.D.W.)
| | - Marie-Claire D Wasson
- Departments of Pathology, Dalhousie University, Halifax, NS B3H 4R2, Canada; (J.M.B.); (M.-C.D.W.)
| | - Paola Marcato
- Departments of Pathology, Dalhousie University, Halifax, NS B3H 4R2, Canada; (J.M.B.); (M.-C.D.W.)
- Departments of Microbiology & Immunology, Dalhousie University, Halifax, NS B3H 4R2, Canada
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168
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Crudele F, Bianchi N, Reali E, Galasso M, Agnoletto C, Volinia S. The network of non-coding RNAs and their molecular targets in breast cancer. Mol Cancer 2020; 19:61. [PMID: 32188472 PMCID: PMC7079433 DOI: 10.1186/s12943-020-01181-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 03/05/2020] [Indexed: 02/06/2023] Open
Abstract
Background Non-coding RNAs are now recognized as fundamental components of the cellular processes. Non-coding RNAs are composed of different classes, including microRNAs (miRNAs) and long non-coding RNAs (lncRNAs). Their detailed roles in breast cancer are still under scrutiny. Main body We systematically reviewed from recent literature the many functional and physical interactions of non-coding RNAs in breast cancer. We used a data driven approach to establish the network of direct, and indirect, interactions. Human curation was essential to de-convolute and critically assess the experimental approaches in the reviewed articles. To enrol the scientific papers in our article cohort, due to the short time span (shorter than 5 years) we considered the journal impact factor rather than the citation number. The outcome of our work is the formal establishment of different sub-networks composed by non-coding RNAs and coding genes with validated relations in human breast cancer. This review describes in a concise and unbiased fashion the core of our current knowledge on the role of lncRNAs, miRNAs and other non-coding RNAs in breast cancer. Conclusions A number of coding/non-coding gene interactions have been investigated in breast cancer during recent years and their full extent is still being established. Here, we have unveiled some of the most important networks embracing those interactions, and described their involvement in cancer development and in its malignant progression.
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Affiliation(s)
- Francesca Crudele
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy.,LTTA, University of Ferrara, Ferrara, Italy
| | - Nicoletta Bianchi
- Department of Biomedical Sciences and Specialist Surgery, University of Ferrara, 44121, Ferrara, Italy
| | - Eva Reali
- IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | - Marco Galasso
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Chiara Agnoletto
- Area of Neuroscience, International School for Advanced Studies (SISSA-ISAS), Trieste, Italy
| | - Stefano Volinia
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy. .,LTTA, University of Ferrara, Ferrara, Italy.
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169
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Chen Y, Deng G, Fu Y, Han Y, Guo C, Yin L, Cai C, Shen H, Wu S, Zeng S. FOXC2 Promotes Oxaliplatin Resistance by Inducing Epithelial-Mesenchymal Transition via MAPK/ERK Signaling in Colorectal Cancer. Onco Targets Ther 2020; 13:1625-1635. [PMID: 32110058 PMCID: PMC7041600 DOI: 10.2147/ott.s241367] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 02/07/2020] [Indexed: 12/27/2022] Open
Abstract
Background Chemoresistance is a major obstacle to improving the survival rate of colorectal cancer (CRC) patients. Forkhead box protein C2 (FOXC2), a member of the forkhead box (Fox) transcription factor family, is reported to be an important regulator of epithelial-to-mesenchymal transition (EMT) and plays a key role in tumor progression. However, little is known about the effects of FOXC2 on oxaliplatin (OXA) resistance in CRC. Methods OXA-resistant cells were generated from HCT116 cells. CCK-8, colony formation, flow cytometry and Transwell assays were used to compare the characteristics of OXA-resistant HCT116/OXA cells and the corresponding parental HCT116 cells. The expression of FOXC2 was confirmed by qRT-PCR and Western blotting in HCT116/OXA and HCT116 cells. Gain- and loss-of-function assays were performed to evaluate the effects of FOXC2 on OXA sensitivity and EMT in HCT116/OXA and HCT116 cells both in vitro and in vivo, and the possible molecular mechanisms were investigated. Results The relative expression of FOXC2 was significantly increased in HCT116/OXA cells compared with the parental HCT116 cells. Upregulation of FOXC2 in HCT116 cells reduced OXA sensitivity and promoted EMT. However, knockdown of FOXC2 in HCT116/OXA cells markedly increased the in vitro and in vivo sensitivity of HCT116/OXA cells to OXA by regulating EMT progression. Furthermore, FOXC2 activated MAPK/ERK signaling, and blockade of ERK attenuated FOXC2-induced EMT and FOXC2-enhanced OXA resistance. Conclusion FOXC2 induced EMT to promote oxaliplatin resistance by activating the MAPK/ERK signaling pathway. FOXC2 may be a potential therapeutic target for overcoming OXA resistance in human CRC.
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Affiliation(s)
- Yihong Chen
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Ganlu Deng
- Department of Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
| | - Yaojie Fu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Ying Han
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Cao Guo
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Ling Yin
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Changjing Cai
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Hong Shen
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Shaobin Wu
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Shan Zeng
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
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170
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Xiong H, Shen J, Chen Z, Yang J, Xie B, Jia Y, Jayasinghe U, Wang J, Zhao W, Xie S, Wang L, Zhou J. H19/let‑7/Lin28 ceRNA network mediates autophagy inhibiting epithelial‑mesenchymal transition in breast cancer. Int J Oncol 2020; 56:794-806. [PMID: 32124962 DOI: 10.3892/ijo.2020.4967] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 12/23/2019] [Indexed: 11/06/2022] Open
Abstract
Long non‑coding RNA (lncRNA) H19 and Lin28 protein have been shown to participate in various pathophysiological processes, including cellular proliferation, autophagy and epithelial‑mesenchymal transition (EMT). A number of studies have investigated lncRNAs, microRNAs and mRNAs, and their roles in the initiation and progression of cancer, in doing so identifying competitive endogenous RNA (ceRNA) networks, including the H19/let‑7/Lin28 network. However, whether the H19/let‑7/Lin28 ceRNA network is involved in autophagy and EMT in breast cancer (BC) remains unclear. The present study demonstrated that the H19/let‑7/Lin28 loop was required for the downregulation of autophagy in BC cells via western blot analysis, reverse transcription‑quantitative PCR and autophagy flux monitoring. Using wound healing, migration and invasion assays, and morphological assays, the H19/let‑7/Lin28 loop was revealed to promote EMT in BC cells. Moreover, the H19/let‑7/Lin28 network was found to contribute to autophagy by inhibiting EMT in BC cells. To the best of our knowledge, the present study is the first to suggest the important roles of the H19/let‑7/Lin28 ceRNA network in BC autophagy and EMT, thus providing insight for the use of these molecules as prognostic biomarkers and therapeutic targets in BC metastasis.
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Affiliation(s)
- Hanchu Xiong
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Jianguo Shen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Zihan Chen
- Department of Surgical Intensive Care Unit, First Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Jingjing Yang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Bojian Xie
- Department of Surgical Oncology, Taizhou Hospital, Taizhou, Zhejiang 318000, P.R. China
| | - Yunlu Jia
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Ushani Jayasinghe
- Department of Surgical Oncology, Rhode Island Hospital, Brown University, Providence, RI 02912, USA
| | - Ji Wang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Wenhe Zhao
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Shuduo Xie
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Linbo Wang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Jichun Zhou
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
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171
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Xiaoling G, Shuaibin L, Kailu L. MicroRNA-19b-3p promotes cell proliferation and osteogenic differentiation of BMSCs by interacting with lncRNA H19. BMC MEDICAL GENETICS 2020; 21:11. [PMID: 31918667 PMCID: PMC6953218 DOI: 10.1186/s12881-020-0948-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 12/31/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND To investigated the role of miR-19b-3p in regulating bone marrow mesenchymal stem cell (BMSC) proliferation and osteoblast differentiation. METHODS The expression of miR-19b-3p and lncRNA H19 were measured in postmenopausal osteoporosis patients and BMP-22 induced BMSCs using qRT-PCR. MiR-19b-3p mimic or inhibitor was transfected into BMP-2 induced BMSCs. Cell proliferation was measured by BrdU method. Protein expression of RUNX2 and COL1A1 were measured by western blot. PcDNA3.1-lncRNA H19 with or without miR-19b-3p mimic was transfected into BMP-2 induced BMSCs. RESULTS The expression of miR-19b-3p was significantly up-regulated in postmenopausal osteoporosis patients and BMP-2 induced BMSCs. MiR-19b-3p overexpression dramatically elevated, while miR-19b-3p inhibition decreased cell proliferation of BMSCs. Additionally, protein expression levels of RUNX2 and COL1A1, as well as ALP activity were significantly promoted by miR-19b-3p mimic transfection and inhibited by miR-19b-3p inhibitor transfection. LncRNA H19 was obviously down-regulated in postmenopausal osteoporosis patients. H19 overexpression significantly decreased cell proliferation and differentiation by down-regulating miR-19b-3p. Moreover, the expression of miR-19b-3p was inhibited, while H19 elvated in 17β-estradiol (E2) treated BMSCs in a dose-dependent manner. CONCLUSION These data were the first to reveal the critical role of H19/miR-19b-3p in postmenopausal osteoporosis, and provided a new therapeutic target for OP.
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Affiliation(s)
- Gan Xiaoling
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Liu Shuaibin
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Liang Kailu
- Department of Orthopedics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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172
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Ghafouri-Fard S, Esmaeili M, Taheri M. H19 lncRNA: Roles in tumorigenesis. Biomed Pharmacother 2019; 123:109774. [PMID: 31855739 DOI: 10.1016/j.biopha.2019.109774] [Citation(s) in RCA: 179] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/23/2019] [Accepted: 12/04/2019] [Indexed: 12/12/2022] Open
Abstract
H19 is a long non-coding RNA [lncRNA] which was firstly described as an oncofetal transcript. The imprinted gene is normally expressed from the maternal allele. However, this pattern of imprinting is dysregulated in several cancers leading to aberrant up-regulation of H19 in malignant tissues. Several studies have utilized this aberrant expression pattern to find specific biomarkers for detection of cancer in tumoral tissues or peripheral blood. Moreover, single nucleotide polymorphisms within H19 have been associated with risk of oral squamous cell carcinoma, hepatocellular carcinoma, breast cancer, bladder cancer, gastric cancer and colorectal cancer. Taken together, H19 is regarded as a biomarker for cancer and a putative therapeutic target in these human disorders.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadhosein Esmaeili
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Mohammad Taheri
- Urogenital Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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173
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Involvement of Actin in Autophagy and Autophagy-Dependent Multidrug Resistance in Cancer. Cancers (Basel) 2019; 11:cancers11081209. [PMID: 31434275 PMCID: PMC6721626 DOI: 10.3390/cancers11081209] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/16/2019] [Accepted: 08/17/2019] [Indexed: 01/09/2023] Open
Abstract
Currently, autophagy in the context of cancer progression arouses a lot of controversy. It is connected with the possibility of switching the nature of this process from cytotoxic to cytoprotective and vice versa depending on the treatment. At the same time, autophagy of cytoprotective character may be one of the factors determining multidrug resistance, as intensification of the process is observed in patients with poorer prognosis. The exact mechanism of this relationship is not yet fully understood; however, it is suggested that one of the elements of the puzzle may be a cytoskeleton. In the latest literature reports, more and more attention is paid to the involvement of actin in the autophagy. The role of this protein is linked to the formation of autophagosomes, which are necessary element of the process. However, based on the proven effectiveness of manipulation of the actin pool, it seems to be an attractive alternative in breaking autophagy-dependent multidrug resistance in cancer.
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