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Lai G, Shen J, Hu Y, Yang F, Zhang C, Le D, Liu Q, Liang Y. LncRNA RNA ROR Aggravates Hypoxia/Reoxygenation-Induced Cardiomyocyte Ferroptosis by Targeting miR-769-5p/CBX7 Axis. Biochem Genet 2023:10.1007/s10528-023-10587-3. [PMID: 38157079 DOI: 10.1007/s10528-023-10587-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/06/2023] [Indexed: 01/03/2024]
Abstract
Ferroptosis is a new way of cell death which is reported to participate in the pathology of myocardial ischemia-reperfusion (MI/R) injury, but it's mechanism remains unclear. The present investigation is to study the emerging role of long non-coding RNA (lncRNA) regulator of reprogramming (ROR) in cardiomyocyte ferroptosis after hypoxia/reoxygenation (H/R) administration. RT-qPCR and/or Western blot methods were performed to examine the gene/or protein levels, and CCK-8, ELISA, and DCFH-DA staining determined the cellular viability and ferroptosis. Dual-luciferase and RNA immunoprecipitation were applied to verify molecular interaction. LncRNA ROR and miR-769-5p were overexpressed and reduced in blood samples from MI patients and H/R-treated AC16 cells, respectively. Mechanistically, lncROR sponged to miR-769-5p, thus upregulating CBX7 expression. Functional experiments presented that lncRNA ROR silence mitigated H/R-stimulated inflammatory damage, oxidative stress, and ferroptosis in AC16 cells, whereas these roles could be reversed by co-downregulation of miR-769-5p or co-overexpression of CBX7. These data uncovered that lncRNA ROR prevented against H/R-induced cardiomyocyte ferroptosis by modulating miR-769-5p/CBX7 signaling, emphasizing the therapeutic value of lncRNA ROR in MI/R injury.
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Affiliation(s)
- Guorong Lai
- Department of Pain Management, The 2nd Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.1 Minde Road, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Jie Shen
- Department of Rehabilitation, The 2nd Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Yanhui Hu
- Department of Anesthesiology, The 2nd Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Fan Yang
- Department of Pain Management, The 2nd Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.1 Minde Road, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Chao Zhang
- Department of Pain Management, The 2nd Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.1 Minde Road, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Dongsheng Le
- Department of Pain Management, The 2nd Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.1 Minde Road, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Qin Liu
- Department of Anesthesiology, The 2nd Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Yingping Liang
- Department of Pain Management, The 2nd Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.1 Minde Road, Nanchang, 330006, Jiangxi Province, People's Republic of China.
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Sugita BM, Rodriguez Y, Fonseca AS, Nunes Souza E, Kallakury B, Cavalli IJ, Ribeiro EMSF, Aneja R, Cavalli LR. MiR-150-5p Overexpression in Triple-Negative Breast Cancer Contributes to the In Vitro Aggressiveness of This Breast Cancer Subtype. Cancers (Basel) 2022; 14:cancers14092156. [PMID: 35565284 PMCID: PMC9104497 DOI: 10.3390/cancers14092156] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/12/2022] [Accepted: 04/19/2022] [Indexed: 01/16/2023] Open
Abstract
Simple Summary Triple-negative breast cancer (TNBC) is a clinically aggressive type of breast cancer. MicroRNAs (miRNAs) are small molecules that regulate the expression of genes involved in tumor cell signaling. The miR-150-5p is frequently deregulated in cancer, with expression and mode of action varying according to the cancer type. In this study, we investigated the expression levels of miR-150-5p in TNBC, its association with clinical and pathological features of patients, and its role in modulating TNBC cell proliferation, migration, and drug resistance. Our results suggest that miR-150-5p is highly expressed in TNBC and that miR-150-5p expression levels are associated with tumor grade, patient survival, and ethnicity. Our findings also indicate that miR-150-5p contributes to the aggressive phenotypes of TNBC cells in vitro. Abstract MiR-150-5p is frequently deregulated in cancer, with expression and mode of action varying according to the tumor type. Here, we investigated the expression levels and role of miR-150-5p in the aggressive breast cancer subtype triple-negative breast cancer (TNBC). MiR-150-5p expression levels were analyzed in tissue samples from 113 patients with invasive breast cancer (56 TNBC and 57 non-TNBC) and 41 adjacent non-tumor tissues (ANT). Overexpression of miR-150-5p was observed in tumor tissues compared with ANT tissues and in TNBC compared with non-TNBC tissues. MiR-150-5p expression levels were significantly associated with high tumor grades and the Caucasian ethnicity. Interestingly, high miR-150-5p levels were associated with prolonged overall survival. Manipulation of miR-150-5p expression in TNBC cells modulated cell proliferation, clonogenicity, migration, and drug resistance. Manipulation of miR-150-5p expression also resulted in altered expression of its mRNA targets, including epithelial-to-mesenchymal transition markers, MYB, and members of the SRC pathway. These findings suggest that miR-150-5p is overexpressed in TNBC and contributes to the aggressiveness of TNBC cells in vitro.
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Affiliation(s)
- Bruna M. Sugita
- Research Institute Pele Pequeno Príncipe, Faculdades Pequeno Príncipe Curitiba, Curitiba 80250-060, Brazil; (B.M.S.); (A.S.F.); (E.N.S.)
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20007, USA;
- Genetics Post-Graduation Program, Department of Genetics, Federal University of Paraná, Curitiba 81530-000, Brazil; (I.J.C.); (E.M.S.F.R.)
| | - Yara Rodriguez
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20007, USA;
| | - Aline S. Fonseca
- Research Institute Pele Pequeno Príncipe, Faculdades Pequeno Príncipe Curitiba, Curitiba 80250-060, Brazil; (B.M.S.); (A.S.F.); (E.N.S.)
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20007, USA;
| | - Emanuelle Nunes Souza
- Research Institute Pele Pequeno Príncipe, Faculdades Pequeno Príncipe Curitiba, Curitiba 80250-060, Brazil; (B.M.S.); (A.S.F.); (E.N.S.)
| | - Bhaskar Kallakury
- Department of Pathology, Georgetown University Medical Center, Washington, DC 20007, USA;
| | - Iglenir J. Cavalli
- Genetics Post-Graduation Program, Department of Genetics, Federal University of Paraná, Curitiba 81530-000, Brazil; (I.J.C.); (E.M.S.F.R.)
| | - Enilze M. S. F. Ribeiro
- Genetics Post-Graduation Program, Department of Genetics, Federal University of Paraná, Curitiba 81530-000, Brazil; (I.J.C.); (E.M.S.F.R.)
| | - Ritu Aneja
- Department of Clinical and Diagnostic Sciences, School of Health Professions, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
| | - Luciane R. Cavalli
- Research Institute Pele Pequeno Príncipe, Faculdades Pequeno Príncipe Curitiba, Curitiba 80250-060, Brazil; (B.M.S.); (A.S.F.); (E.N.S.)
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20007, USA;
- Correspondence:
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Liu W, Wang B, Duan A, Shen K, Zhang Q, Tang X, Wei Y, Tang J, Zhang S. Exosomal transfer of miR-769-5p promotes osteosarcoma proliferation and metastasis by targeting DUSP16. Cancer Cell Int 2021; 21:541. [PMID: 34663350 DOI: 10.1186/s12935-021-02257-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 10/10/2021] [Indexed: 11/10/2022] Open
Abstract
Background Osteosarcoma (OS) is a malignant tumor originating from mesenchymal stem cells, and has an extremely high fatality rate and ability to metastasize. Although mounting evidence suggests that miR-769-5p is strongly associated with the malignant progression and poor prognosis of various tumors, the exact role of miR-769-5p in OS is still unclear. Therefore, this study aimed to explore the relationship between miR-769-5p and the malignant progression of OS, and its underlying mechanism of action. Methods miR-769-5p expression was analyzed in GSE28423 from the GEO database and measured in OS clinical specimens and cell lines. The effects of miR-769-5p on OS proliferation, migration and invasion were measured both in vivo and in vitro. In addition, bioinformatics analyses and luciferase reporter assays were used to explore the target genes of miR-769-5p. Rescue experiments were also conducted. Moreover, a co-culture model was used to test the cell interaction between bone mesenchymal stem cells (BMSC) and OS cells. Results We found that miR-769-5p is highly expressed in OS clinical specimens and cell lines. In vivo and in vitro experiments also showed that miR-769-5p significantly promoted the proliferation, migration and invasion of OS cells. Dual-specific phosphatase 16 (DUSP16) was negatively associated with miR-769-5p expression in OS cells and tissue samples and was validated as the downstream target by luciferase reporter assay and western blotting. Rescue experiments showed that DUSP16 reverses the effect of miR-769-5p on OS cells by negatively regulating the JNK/p38 MAPK signaling pathway. Additionally, the results of the co-culture of BMSCs and OS cells confirmed that miR-769-5p was transferred from BMSCs to OS cells through exosomes. Conclusions In summary, this study demonstrates for the first time that BMSC-derived exosomal miR-769-5p promotes OS proliferation and metastasis by targeting DUSP16 and activating the JNK/p38 MAPK signaling pathway, which could provide rationale for a new therapeutic strategy for OS. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-02257-4.
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Zhang C, Wang H, Deng M, He L, Ping F, He Y, Fan Z, Cheng B, Xia J. Upregulated miR‑411‑5p levels promote lymph node metastasis by targeting RYBP in head and neck squamous cell carcinoma. Int J Mol Med 2021; 47:36. [PMID: 33537835 PMCID: PMC7891818 DOI: 10.3892/ijmm.2021.4869] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/15/2020] [Indexed: 01/01/2023] Open
Abstract
Metastasis is the primary cause of the high mortality rates in head and neck squamous cell carcinoma (HNSCC). MicroRNA (miR)‑411‑5p has been discovered to serve an important role in cancer metastases. However, to the best of our knowledge, the association between miR‑411‑5p expression levels and HNSCC metastasis has not been thoroughly investigated. The present study aimed to research the function of miR‑411‑5p in HNSCC metastasis. The results of the present study revealed that miR‑411‑5p expression levels were upregulated in patients with HNSCC with lymph node metastasis and the upregulated expression levels of miR‑411‑5p were positively associated with the metastatic potential of HNSCC. Moreover, miR‑411‑5p promoted HNSCC cell migration, invasion and epithelial‑mesenchymal transition (EMT). The results of the dual‑luciferase reporter assays identified RING1 and YY1 binding protein (RYBP) as a functional downstream target gene for miR‑411‑5p. Therefore, whether miR‑411‑5p downregulated the expression levels of RYBP in HNSCC cells was subsequently investigated. Notably, the silencing of RYBP expression restored the stimulatory effects of miR‑411‑5p on HNSCC cell migration, invasion and EMT. In addition, the mRNA expression levels of miR‑411‑5p and RYBP were found to be inversely correlated in HNSCC samples. In conclusion, the results of the present study indicated that the miR‑411‑5p‑mediated downregulation of RYBP expression levels may exert an important role in HNSCC metastasis and may provide a novel target for the treatment of HNSCC.
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Affiliation(s)
- Chi Zhang
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Hongfei Wang
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Miao Deng
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Lihong He
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Fan Ping
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Yuan He
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Zhaona Fan
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Bin Cheng
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Juan Xia
- Department of Oral Medicine, Hospital of Stomatology, Sun Yat‑Sen University, Guangzhou, Guangdong 510055, P.R. China
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Chen Q, Cao M, Ge H. Knockdown of MALAT1 Inhibits the Progression of Chronic Periodontitis via Targeting miR-769-5p/HIF3A Axis. Biomed Res Int 2021; 2021:8899863. [PMID: 33604388 DOI: 10.1155/2021/8899863] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 12/10/2020] [Accepted: 12/26/2020] [Indexed: 01/11/2023]
Abstract
Purpose Chronic periodontitis (CP) is a long-lasting inflammatory disease that seriously affects oral health. This study is aimed at investigating the regulatory mechanism of metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) in CP. Methods Primary human periodontal ligament cells (PDLCs) were treated with P. gingivalis lipopolysaccharide (LPS) to establish a CP model. Quantitative real-time PCR (qRT-PCR) was used to measure the expression of MALAT1 and miR-769-5p in gingival tissues of patients with CP and LPS-treated PDLCs. Cell viability was detected by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) assay. Enzyme-linked immunosorbent assay (ELISA) was used to measure the levels of inflammatory cytokines. The protein levels of caspase-3, Bax, Bcl-2, and hypoxia-inducible factor (HIF) 3A were determined by western blot assay. Dual-luciferase reporter (DLR) assay was applied to validate the target relationships between miR-769-5p and MALAT1/HIF3A. Results The expression of MALAT1 and HIF3A was enhanced, and the expression of miR-769-5p was reduced in gingival tissues of patients with CP and LPS-treated PDLCs. MALAT1 knockdown promoted cell viability and inhibited inflammation and cell apoptosis in LPS-treated PDLCs. MALAT1 targeted miR-769-5p and negatively regulated miR-769-5p expression. miR-769-5p overexpression promoted cell viability and inhibited inflammation and cell apoptosis in LPS-treated PDLCs. Besides, miR-769-5p targeted HIF3A and negatively modulated HIF3A expression. Both miR-769-5p inhibition and HIF3A overexpression reversed the inhibitory effects of MALAT1 silencing on LPS-induced PDLC injury in vitro. Conclusion MALAT1 knockdown attenuated LPS-induced PDLC injury via regulating the miR-769-5p/HIF3A axis, which may supply a new target for CP treatment.
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