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Tang Y, Li K, Hu B, Cai Z, Li J, Tao H, Cao J. Fatty acid binding protein 5 promotes the proliferation, migration, and invasion of hepatocellular carcinoma cells by degradation of Krüppel-like factor 9 mediated by miR-889-5p via cAMP-response element binding protein. Cancer Biol Ther 2022; 23:424-438. [PMID: 35816613 PMCID: PMC9275499 DOI: 10.1080/15384047.2022.2094670] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Mounting evidence has demonstrated that fatty acid binding protein 5 (FABP5) is commonly upregulated in many human malignancies. However, the mechanisms explaining the involvement of FABP5 in hepatocellular carcinoma (HCC) remain unclear. In this study, we demonstrated the involvement of FABP5 and its downstream signaling molecules in HCC progression. We first confirmed that FABP5 expression was upregulated in HCC. Additionally, FABP5 promoted HCC cells proliferation, migration, and invasion. Mechanistic investigation showed that FABP5 could improve cAMP-response element binding protein (CREB) phosphorylation. Meanwhile, CREB, as a transcription factor, upregulated the miR-889-5p expression by binding to the miR-889-5p promoter region. Consequently, miR-889-5p led to downregulation of Krüppel-like factor 9 (KLF9) by binding to the 3ʹ-UTR of the KLF9 mRNA, potentiating the PI3K/AKT signaling pathway and promoting the proliferation, migration, and invasion of HCC cells. Our findings have identified a FABP5/CREB/miR-889-5p/KLF9 axis for HCC progression, and we postulate that blocking this key signaling pathway may represent a promising strategy for HCC treatment.
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Affiliation(s)
- Yanping Tang
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Kezhi Li
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Bangli Hu
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Zhengmin Cai
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Jilin Li
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Hao Tao
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Ji Cao
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China.,Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, Guangxi, China
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Inducible MicroRNA-132 Inhibits the Production of Inflammatory Cytokines by Targeting TRAF6, TAK1, and TAB1 in Teleost Fish. Infect Immun 2022; 90:e0012022. [PMID: 35416706 DOI: 10.1128/iai.00120-22] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The innate immune response is the first line of defense against pathogen infection. Eradication of pathogen infection requires appropriate immune and inflammatory responses, but excessive inflammation may cause inflammatory and autoimmune diseases. MicroRNAs (miRNAs) are a group of small noncoding RNAs, and accumulating evidence has shown that in mammals, they can act as negative regulators that participate in the regulation of inflammation and immune responses. However, the miRNA-mediated immune regulation networks in the inflammatory responses of lower vertebrates are largely unknown. In this study, we report an miRNA, miR-132, identified from miiuy croaker, that acts as a negative regulator in the host's bacterium-induced inflammatory response. We found that miR-132 expression was dramatically increased upon infection by the Gram-negative bacterium Vibrio harveyi and lipopolysaccharide (LPS). Inducible miR-132 inhibits the production of inflammatory cytokines by targeting tumor necrosis factor receptor-associated factor 6 (TRAF6), transforming growth factor-activated protein kinase 1 (TAK1), and TAK1 binding protein 1 (TAB1), thus avoiding an excessive inflammatory response. Furthermore, we demonstrate that miR-132 modulates the inflammatory response through a TRAF6-, TAK1-, and TAB1-mediated NF-κB signaling pathway. These results collectively reveal that miR-132 plays a negative regulatory role in the host antibacterial immune response, which will help to gain insight into the intricate network of host resistance to pathogen infection in lower vertebrates.
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Wang H, Wang H, Cui W, Zhang Q, Li J, Zhang Q. Enhanced expression of miR-889 forecasts an unfavorable prognosis and facilitates cell progression in hepatocellular carcinoma. Diagn Pathol 2021; 16:51. [PMID: 34116691 PMCID: PMC8196534 DOI: 10.1186/s13000-021-01111-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 05/27/2021] [Indexed: 02/06/2023] Open
Abstract
Background As a new type of molecular marker, microRNAs (miRNAs) can be used for early diagnosis and prognosis prediction of malignant tumors, and has broad clinical application prospects. This paper mainly studies the important role of miR-889 in the occurrence and development of hepatocellular carcinoma and the prognostic significance of miR-889 in hepatocellular carcinoma. Methods Quantitative real-time PCR analysis detected the expression levels of miR-889 in hepatocellular carcinoma tissues and cell lines. Kaplan-Meier curve and Cox regression analysis were used to explore the prognostic significance of miR-889 in hepatocellular carcinoma. The CCK-8 and Transwell assays assay were used to assess cell proliferation, migration, and invasion abilities ability. Results The expression of miR-889 in hepatocellular carcinoma tissues was significantly higher than that in adjacent tissues. Overexpression of miR-889 was significantly associated with TNM stage, hepatitis B virus infection, and cirrhosis. Patients with high miR-889 expression had shorter overall survival than those with low miR-889 expression. And functional studies in two hepatocellular carcinoma cell lines have shown that overexpression of miR-889 significantly promoted cell proliferation, migration, and invasion in vitro. Conclusions Overall, miR-889 was upregulated in hepatocellular carcinoma tissues and cell lines, and overexpression of miR-889 promoted cell proliferation, migration, and invasion in hepatocellular carcinoma cells. Based on our findings, high expression of miR-889 may promote the progression of hepatocellular carcinoma, and high expression of miR-889 is also forecasted for an unfavorable prognosis in hepatocellular carcinoma.
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Affiliation(s)
- He Wang
- Department of Interventional, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, Heilongjiang, 150081, Harbin, China
| | - Huiwen Wang
- Department of Interventional, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, Heilongjiang, 150081, Harbin, China
| | - Wenyu Cui
- School of Pharmacy, Harbin University of Commerce, 138 Tongda Street, Harbin, 150076, Heilongjiang, China
| | - Qiao Zhang
- School of Pharmacy, Harbin University of Commerce, 138 Tongda Street, Harbin, 150076, Heilongjiang, China.
| | - Jing Li
- School of Pharmacy, Harbin University of Commerce, 138 Tongda Street, Harbin, 150076, Heilongjiang, China
| | - Qi Zhang
- School of Pharmacy, Harbin University of Commerce, 138 Tongda Street, Harbin, 150076, Heilongjiang, China
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Silencing of hsa_circ_0009035 Suppresses Cervical Cancer Progression and Enhances Radiosensitivity through MicroRNA 889-3p-Dependent Regulation of HOXB7. Mol Cell Biol 2021; 41:e0063120. [PMID: 33782039 PMCID: PMC8316008 DOI: 10.1128/mcb.00631-20] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Circular RNAs (circRNAs), a novel type of endogenous noncoding RNAs, have been identified as critical regulators in human carcinogenesis. Here, we investigated the precise actions of hsa_circ_0009035 in the progression and radioresistance of cervical cancer (CC). The levels of hsa_circ_0009035, microRNA 889-3p (miR-889-3p), and homeobox B7 (HOXB7) were detected by quantitative real-time PCR (qRT-PCR) or Western blotting. RNase R and actinomycin D assays were used to assess the stability of hsa_circ_0009035. Cell proliferation, cell cycle progression, apoptosis, migration, and invasion were gauged with Cell Counting Kit-8 (CCK-8), flow cytometry, and transwell assays. Cell colony formation and survival were determined by the colony formation assay. Targeted correlations among hsa_circ_0009035, miR-889-3p, and HOXB7 were examined by the dual-luciferase reporter, RNA immunoprecipitation (RIP), or RNA pulldown assay. Animal studies were performed to evaluate the impact of hsa_circ_0009035 on tumor growth. We found that hsa_circ_0009035 was highly expressed in CC tissues and cells, and it was associated with the radioresistance of CC patients. Moreover, the silencing of hsa_circ_0009035 inhibited CC cell proliferation, migration, invasion, and it enhanced apoptosis and radiosensitivity in vitro and weakened tumor growth in vivo. Mechanistically, hsa_circ_0009035 directly targeted miR-889-3p by binding to miR-889-3p, and hsa_circ_0009035 modulated HOXB7 expression through miR-889-3p. HOXB7 was a functional target of miR-889-3p in regulating CC progression and radioresistance in vitro, and hsa_circ_0009035 modulated CC progression and radioresistance in vitro by miR-889-3p. Our current study first identified hsa_circ_0009035 as an important regulator of CC progression and radioresistance at least in part through targeting the miR-889-3p/HOXB7 axis, highlighting its significance as a potential therapeutic target for CC treatment.
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Zhou LY, Zhang FW, Tong J, Liu F. MiR-191-5p inhibits lung adenocarcinoma by repressing SATB1 to inhibit Wnt pathway. Mol Genet Genomic Med 2019; 8:e1043. [PMID: 31724324 PMCID: PMC6978255 DOI: 10.1002/mgg3.1043] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 10/08/2019] [Accepted: 10/11/2019] [Indexed: 12/19/2022] Open
Abstract
Background To investigate the function of miR‐191‐5p in lung adenocarcinoma and its possible mechanism. Methods QRT‐PCR was adopted for the detection of the expression levels of miR‐191‐5p and SATB1 (HGNC: 10541). The effects of miR‐191‐5p and SATB1 on cell proliferation and migration were examined through the CCK‐8 and Transwell assays. Subsequently, the binding relationships between miR‐191‐5p and SATB1 were confirmed by dual‐luciferase reporter gene assay. Finally, the potential mechanisms of action of miR‐191‐5p were explored through a serious of in vivo and in vitro experiments. Results Lung adenocarcinoma patients had a notably lower expression level of miR‐191‐5p than controls, patients with metastasis had a lower level than those without metastasis, and the level in patients with lung adenocarcinoma in stage III‐IV was lower than that in patients with lung adenocarcinoma in stage I‐II. Overexpression of miR‐191‐5p repressed the migration and proliferation of lung cancer A549/H1650 cells. According to the reporter gene assay, miR‐191‐5p could bind to SATB1. Besides, SATB1 was significantly overexpressed in cancer tissues of patients with lung adenocarcinoma, and SATB1 overexpression accelerated the migration and proliferation of A549/H1650 cells and reversed inhibition on cell migration and proliferation by miR‐191‐5p. Conclusion Overexpression of miR‐191‐5p is capable of blocking the migration and proliferation of lung cancer cells, and its mechanism may be through targeting SATB1 thus downregulating Wnt signaling.
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Affiliation(s)
- Lai-Yong Zhou
- Department of Cardiothoracic surgery, The People's Hospital of Bao'an Shenzhen, The Affiliated Bao'an Hospital of Southern Medical University, Shenzhen, China
| | - Fu-Wei Zhang
- Department of Cardiothoracic surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jian Tong
- Department of Cardiothoracic surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Fang Liu
- Department of Pathology, The People's Hospital of Bao'an Shenzhen, The Affiliated Bao'an Hospital of Southern Medical University, Shenzhen, China
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