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Wang Y, Zou R, Li D, Gao X, Lu X. Exosomal circSTRBP from cancer cells facilitates gastric cancer progression via regulating miR-1294/miR-593-3p/E2F2 axis. J Cell Mol Med 2024; 28:e18217. [PMID: 38520208 PMCID: PMC10960172 DOI: 10.1111/jcmm.18217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/27/2023] [Accepted: 01/09/2024] [Indexed: 03/25/2024] Open
Abstract
CircRNAs represent a new class of non-coding RNAs which show aberrant expression in diverse cancers, such as gastric cancer (GC). circSTRBP, for instance, is suggested to be overexpressed in GC cells and tissues. However, the biological role of circSTRBP in the progression of GC and the potential mechanisms have not been investigated. circSTRBP levels within GC cells and tissues were measured by RT-qPCR. The stability of circSTRBP was assessed by actinomycin D and Ribonuclease R treatment. Cell proliferation, migration, invasion and in vitro angiogenic abilities after circSTRBP knockdown were analysed through CCK-8 assay, transwell culture system and the tube formation assay. The interaction of circSTRBP with the predicted target microRNA (miRNA) was examined by RNA immunoprecipitation and luciferase reporter assays. Xenograft tumour model was established to evaluate the role of exosomal circSTRBP in the tumour formation of GC cells. circSTRBP was upregulated in GC cells and tissues, and there was an increased level of circSTRBP in GC-derived exosomes. circSTRBP in the exosomes enhanced GC cell growth and migration in vitro, which modulates E2F Transcription Factor 2 (E2F2) expression through targeting miR-1294 and miR-593-3p. Additionally, exosomal circSTRBP promoted the tumour growth of GC cells in the xenograft model. Exosomal circSTRBP is implicated in the progression of GC by modulating the activity of miR-1294/miR-593-3p/E2F2 axis.
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Affiliation(s)
- Yin Wang
- Department of GastroenterologyBozhou Hospital affiliated to Anhui Medical UniversityBozhouChina
| | - Rong Zou
- Department of Gastroenterology, Wuhan Puren HospitalWuhan University of Science and TechnologyWuhanChina
| | - Deke Li
- Department of AnesthesiologyThe Fifth Hospital of WuhanChina
| | - Xiankui Gao
- Department of GastroenterologyBozhou Hospital affiliated to Anhui Medical UniversityBozhouChina
| | - Xingjun Lu
- Department of GastroenterologyBozhou Hospital affiliated to Anhui Medical UniversityBozhouChina
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2
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Zhou Q, Lei C, Cui F, Chen H, Cao X. Circ-ATIC regulates esophageal squamous cell carcinoma growth and metastasis through miR-1294/PBX3 pathway. Heliyon 2023; 9:e12916. [PMID: 36699282 PMCID: PMC9868444 DOI: 10.1016/j.heliyon.2023.e12916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 01/12/2023] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is a digestive tract malignancy associated with poor clinical outcome. Growing evidence have elucidated that circular RNAs (circRNAs) play important roles in the pathological process of ESCC. However, the detailed mechanisms how circRNAs modulate the development of ESCC remain largely unknown. Our study aimed to decipher the role and mechanism of circ-ATIC (also termed as circRNA_0058063) in regulating the progression of ESCC. We found that circ-ATIC and its host gene ATIC were significantly increased in ESCC tissues and cells compared with the adjacent noncancerous tissues or normal esophagus epithelial cell. Circ-ATIC knockdown substantially reduced proliferation and the number of invaded ESCC cells and retarded EMT process, reflecting by the decreased N-cadherin and elevated E-cadherin. However, the level of host gene ATIC was not changed under circ-ATIC suppression. It was predicted that circ-ATIC could bind to miR-1294 and serve as a sponge RNA. The luciferase reporter assay and RNA immunoprecipitation (RIP) assay confirmed their relations. MiR-1294 was decreased in ESCC tissues and cells, which was reversely correlated with circ-ATIC level. Furthermore, PBX3 was predicted and proved to be a downstream direct target of miR-1294. PBX3 mRNA and protein were obviously upregulated in ESCC tumor tissues and cells. PBX3 overexpression could reverse the suppressive roles of miR-1294 mimics on ESCC proliferation and invasion. In an xenograft nude mice model, stable transfection of sh-circ-ATIC significantly retarded the growth of tumor and suppressed VEGF and Ki67. Collectively, circ-ATIC promoted ESCC proliferation and invasion by regulating miR-1294/PBX3 axis.
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Affiliation(s)
- Qian Zhou
- Department of Cardiothoracic Surgery, Jingzhou Central Hospital (Jingzhou Hospital Affiliated to Yangtze University), Jingzhou, 434000, Hubei, PR China
| | - Chengang Lei
- Department of Cardiothoracic Surgery, Jingzhou Central Hospital (Jingzhou Hospital Affiliated to Yangtze University), Jingzhou, 434000, Hubei, PR China
| | - Fenghe Cui
- Department of Cardiothoracic Surgery, Jingzhou Central Hospital (Jingzhou Hospital Affiliated to Yangtze University), Jingzhou, 434000, Hubei, PR China
| | - Hao Chen
- Department of Cardiothoracic Surgery, Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, 442008, Hubei, PR China
| | - Xianzhao Cao
- Department of Cardiothoracic Surgery, Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, 442008, Hubei, PR China,Corresponding author. Department of Cardiothoracic Surgery, Sinopharm Dongfeng General Hospital, Hubei University of Medicine, No. 16 Daling Road, Zhangwan District, Shiyan, 442008, Hubei, PR China.
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3
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Wu J, Gong P, Jiang Z. Knockdown of hsa_circ_0043691 restrains the progression of gastric cancer by decoying
miR
‐1294 to target pre‐leukemia transcription factor 3. J Clin Lab Anal 2022; 36:e24733. [DOI: 10.1002/jcla.24733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 11/14/2022] Open
Affiliation(s)
- Jing Wu
- Department of Gastroenterology Fuyong People's Hospital Shenzhen China
| | - Pan Gong
- Department of Abdominal tumour surgery Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Edong Healthcare Group, Hubei Key Laboratory of Kidney Disease Pathogenesis and Intervention Huangshi China
| | - Zhiyong Jiang
- Department of Medical Imaging Zhongnan Hospital of Wuhan University Wuhan China
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Liang W, Wang C, Wang J, Zhang M. Hsa_circ_0023984 Regulates Cell Proliferation, Migration, and Invasion in Esophageal Squamous Cancer via Regulating miR-1294/PI3K/Akt/c-Myc Pathway. Appl Biochem Biotechnol 2022; 194:1-16. [PMID: 35522362 DOI: 10.1007/s12010-022-03935-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2022] [Indexed: 11/02/2022]
Abstract
Circular RNAs (circRNAs) exert an essential function in the tumorigenesis and progression of esophageal squamous cancer (ESCC). Nonetheless, the role and potential mechanism of circ_0023984 in ESCC are blurred. circRNA expression profile data from Gene Expression Omnibus (GEO) database was applied to analyze circRNAs that were differentially expressed between ESCC tissues and paracancerous tissues. Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted to analyze circ_0023984 expression and miR-1294 expression in ESCC tissues and cells. Then a series of functional experiments were executed to validate the role of circ_0023984 and miR-1294 in modulating the proliferation, migration, invasion, and cell cycle progression of ESCC cells. Luciferase reporter experiment was performed to confirm the targeting relationship between circ_0023984 and miR-1294. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were carried out with DAVID database. Western blot assay was utilized to detect phosphorylated-Akt (p-Akt) expression and c-Myc expression. circ_0023984 was remarkably upmodulated in ESCC tumor tissues and cell lines. circ_0023984 overexpression was correlated with advanced clinical stage and lymph node metastasis of ESCC patients. circ_0023984 overexpression remarkably enhanced ESCC cell proliferation, migration, invasion, and cell cycle progression, while knockdown of circ_0023984 showed the opposite effect. circ_0023984 was the molecular sponge of miR-1294. miR-1294 could significantly inhibit ESCC cell proliferation, migration, invasion, and induce cell cycle arrest at G0/G1 phase. circ_0023984 affected ESCC progression through regulating miR-1294 expression. The target genes of miR-1294 were associated with cell cycle arrest and PI3K-Akt signaling pathway. circ_0023984 upregulated the expression of p-Akt and c-Myc by repressing miR-1294. circ_0023984 facilitates the malignant biological behaviors of ESCC cells through inhibiting miR-1294 and activating PI3K/Akt/c-myc pathway.
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Affiliation(s)
- Wenchang Liang
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Jianshedong Road No.1, Zhengzhou, 450000, Henan, China.,Department of Oncology, Anyang Tumor Hospital, the Affiliated Anyang Tumor Hospital of Henan University of Science and Technology, Henan Medical Key Laboratory of Precise Prevention and Treatment of Esophageal Cancer, Anyang, 455000, Henan, China
| | - Cailing Wang
- Department of Oncology, Anyang Tumor Hospital, the Affiliated Anyang Tumor Hospital of Henan University of Science and Technology, Henan Medical Key Laboratory of Precise Prevention and Treatment of Esophageal Cancer, Anyang, 455000, Henan, China
| | - Junsheng Wang
- Department of Oncology, Anyang Tumor Hospital, the Affiliated Anyang Tumor Hospital of Henan University of Science and Technology, Henan Medical Key Laboratory of Precise Prevention and Treatment of Esophageal Cancer, Anyang, 455000, Henan, China
| | - Mingzhi Zhang
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Jianshedong Road No.1, Zhengzhou, 450000, Henan, China.
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Lin G, Li J, Chen K, Wang A, Guo C. Circ_0000854 regulates the progression of hepatocellular carcinoma through miR-1294 /IRGQ axis. Clin Immunol 2022; 238:109007. [PMID: 35417749 DOI: 10.1016/j.clim.2022.109007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 12/28/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a common cancer disease with the second highest mortality. Circular RNAs (circRNAs) have been shown to play key roles in many tumors, including HCC. However, the function of circ_0000854 in the progression of HCC has not been clarified. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect the expression levels of circ_0000854, microRNA-1294 (miR-1294) and immunity related GTPase Q (IRGQ) in HCC cells and tissues. Western blot was used for protein expression analysis. Cell processes were detected by 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium Bromide (MTT) assay, thymidine analog 5-ethynyl-2'-deoxyuridine (EdU) assay, transwell assay, flow cytometry, and wound healing assay. Mechanically, the interaction of miR-1294 with circ_0000854 or IRGQ was notarized by dual-luciferase reporter assay and RNA pull-down assay. The xenotransplantation model was established to study the role of circ_0000854 in vivo. RESULTS Circ_0000854 and IRGQ were highly expressed in HCC tissues and cells, while miR-1294 was downregulated. Silencing circ_0000854 suppressed HCC cell malignant behaviors, including proliferation, cell cycle progression, migration and invasion. Circ_0000854 exhibited sponge effect on miR-1294 and miR-1294 inhibition reversed function of circ_0000854 knockdown. In addition, miR-1294 targeted IRGQ and circ_0000854 sponged miR-1294 to upregulate IRGQ. Overexpression of IRGQ restored miR-1294-induced anti-tumor regulation in HCC cells. Animal experiments confirmed that silencing circ_0000854 inhibited tumor growth and metastasis of HCC via mediating miR-1294 and IRGQ levels in vivo. CONCLUSION Circ_0000854 accelerated HCC progression via the miR-1294/IRGQ axis, providing a novel regulatory mechanism for HCC pathogenesis.
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Affiliation(s)
- Guanbin Lin
- Tongji University School of Medicine, Shanghai 200092, China; Department of Gastroenterology, Beilun People's Hospital in Ningbo, Ningbo 315800, Zhejiang, China
| | - Jingjing Li
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Kan Chen
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Aiping Wang
- Department of Health Management Center, Beilun People's Hospital in Ningbo, Ningbo 315800, Zhejiang, China
| | - Chuanyong Guo
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
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Li B, Lou G, Zhang J, Cao N, Yu X. Repression of lncRNA PART1 attenuates ovarian cancer cell viability, migration and invasion through the miR-503-5p/FOXK1 axis. BMC Cancer 2022; 22:124. [PMID: 35100978 PMCID: PMC8802513 DOI: 10.1186/s12885-021-09005-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 11/13/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Ovarian cancer (OC) is a female malignant tumor with a high fatality rate. Long non-coding RNAs (lncRNAs) are deeply involved in OC progression. The aim of this study is to explore the specific mechanism of lncRNA prostate androgen-regulated transcript 1 (PART1) in OC. METHODS Quantitative real time PCR was utilized to determine the expression levels of PART1, microRNA (miR)-503-5p and forkhead-box k1 (FOXK1) in OC tissues and/or cells. The cell viability, migration, and invasion in OC were evaluated by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-h-tetrazolium bromide assay, wound healing assay and transwell invasion assay, respectively. Flow cytometry was used to analyze the cell apoptosis. The xenograft tumor was conducted in nude mice to verify the effect of PART1 knockdown on OC in vivo. The target relationships among PART1, miR-503-5p and FOXK1 were predicted by StarBase, and verified by luciferase reporter assay. The level of FOXK1 was assessed by western blot. RESULTS Increased expression of PART1 and FOXK1 was observed in OC tissues or cells, whereas miR-503-5p was downregulated. PART1 silencing or miR-503-5p overexpression repressed the cell viability, migration and invasion, and protomed apoptosis. Meanwhile, miR-503-5p was a target of PART1, and FOXK1 was a direct target gene of miR-503-5p. Both downregulation of miR-503-5p and upregulation of FOXK1 partly relieved the suppressive effects of PART1 knockdown on the oncogenicity of OC in vitro. CONCLUSION Decreased PART1 represses the cell viability, migration and invasion of OC via regulating the miR-503-5p/FOXK1 axis, which provided an underlying target for treating OC.
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Affiliation(s)
- Bing Li
- Department of Gynaecology, Harbin Medical University Cancer Hospital, No. 150, Haping Road, Nangang District, Harbin City, 150081, Heilongjiang Province, China.
| | - Ge Lou
- Department of Gynaecology, Harbin Medical University Cancer Hospital, No. 150, Haping Road, Nangang District, Harbin City, 150081, Heilongjiang Province, China
| | - Jiahui Zhang
- School of Basic Medical Sciences, Fudan University, No.138, Medical College Road, Shanghai, 200032, China
| | - Ning Cao
- Department of Gynaecology, Harbin Medical University Cancer Hospital, No. 150, Haping Road, Nangang District, Harbin City, 150081, Heilongjiang Province, China
| | - Xi Yu
- Department of Gynaecology, Harbin Medical University Cancer Hospital, No. 150, Haping Road, Nangang District, Harbin City, 150081, Heilongjiang Province, China
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7
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Yan C, Ying J, Lu W, Changzhi Y, Qihong Q, Jingzhu M, Dongjie S, Tingting Z. MiR-1294 suppresses ROS-dependent inflammatory response in atopic dermatitis via restraining STAT3/NF-κB pathway. Cell Immunol 2021; 371:104452. [PMID: 34784561 DOI: 10.1016/j.cellimm.2021.104452] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 10/26/2021] [Accepted: 10/29/2021] [Indexed: 12/12/2022]
Abstract
Atopic dermatitis (AD) is a common inflammatory skin disorder that affects children and adults. Despite the pathology of AD involves in immune dysfunction and epidermal barrier function destruction has been found, the mechanism of immune activation and barrier damage remain largely unknown. In the present study, The TNF-α/IFN-γ-stimulated HaCaTs, organotypic AD-like 3D skin equivalents and AD-like mouse model were constructed. The mRNA, histological morphology, protein levels, cytokines were detected by real-time quantitative polymerasechain reaction (RT-qPCR), hematoxylin and eosin (H & E) staining, Immunohistochemistry (IHC), immunoblotting, immunofluorescence (IF) staining, and enzyme linked immunosorbent assay (ELISA), respectively. Cell viability, cell cycle, and apoptosis were respectively calculated using a Methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay and flow cytometry. A dual-luciferase reporter gene system was used to investigate the relationship between miR-1294 and STAT3. Compared with the control group, the expression of miR-1294 decreased in TNF-α/IFN-γ-stimulated HaCaTs (P < 0.001), AD-like skin model, and AD-like mouse model (P < 0.001). Moreover, STAT3 was documented as a direct target of miR-1294. Inflammation (P < 0.05) and epidermal barrier function destruction (P < 0.05) in AD was suppressed by overexpression of miR-1294 but enhanced by STAT3 upregulation and its downstream NF-κB pathway. We also found miR-1294 upregulation inhibited inflammation and epidermal barrier function destruction via targeting STAT3 to suppress NF-κB pathway activation in AD.
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Affiliation(s)
- Chen Yan
- Department of Dermatology, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Jiang Ying
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China
| | - Wang Lu
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China
| | - Yang Changzhi
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China
| | - Qian Qihong
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China
| | - Mao Jingzhu
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China
| | - Sun Dongjie
- Department of Dermatology, The first affiliated hospital of Kunming Medical University, No.295 Xichang Rd, Kunming, Yunnan 650032, China.
| | - Zhu Tingting
- Department of Dermatology, The first affiliated hospital of Soochow University, No.188, Shizi Street, Suzhou 215006, China.
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8
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Chen W, Li Y, Zhong J, Wen G. circ-PRKCI targets miR-1294 and miR-186-5p by downregulating FOXK1 expression to suppress glycolysis in hepatocellular carcinoma. Mol Med Rep 2021; 23:464. [PMID: 33880589 PMCID: PMC8097765 DOI: 10.3892/mmr.2021.12103] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 01/29/2021] [Indexed: 12/17/2022] Open
Abstract
Numerous human circular RNAs (circRNAs/circ) have been functionally characterized. However, the potential role of circ-protein kinase C iota (PRKCI) in hepatocellular carcinoma (HCC) remains unknown. The effects of each transfection and expression levels of circ-PRKCI, microRNA (miR)-1294, miR-186-5p and forkhead box K1 (FOXK1) in HCC cells were analyzed using reverse transcription-quantitative PCR analysis. The interactions between circ-PRKCI and miR-1294 or miR-186-5p, and miR-1294 or miR-186-5p and FOXK1 were validated using dual luciferase reporter assays. The viability, invasion and migration of HCC cells were determined using Cell Counting Kit-8, Transwell and wound healing assays, respectively. The expression levels of FOXK1, hexokinase-2 (HK2), glucose transporter 1 (GLUT1) and lactate dehydrogenase A (LDHA) in HCC cells were analyzed using western blotting. The levels of glucose and lactic acid in the cultured supernatant were detected using commercially available kits. The results of the present study revealed that miR-1294 and miR-186-5p expression levels were downregulated in the HCC cell line, HCCLM3, and were subsequently downregulated by circ-PRKCI overexpression and upregulated by the knockdown of circ-PRKCI. circ-PRKCI overexpression promoted the viability, invasion and migration of HCCLM3 cells, which was also reversed by the overexpression of miR-1294 and miR-186-5p. In addition, the overexpression of circ-PRKCI upregulated FOXK1 expression levels, while the overexpression of miR-1294 and miR-186-5p downregulated FOXK1 expression levels. Conversely, the knockdown of circ-PRKCI expression downregulated FOXK1 expression levels, while the knockdown of miR-1294 and miR-186-5p upregulated FOXK1 expression levels. Furthermore, circ-PRKCI was identified to target miR-1294 and miR-186-5p, and miR-1294 and miR-186-5p were subsequently found to target FOXK1. The overexpression of circ-PRKCI also increased glucose and lactic acid levels, while the knockdown of FOXK1 decreased glucose and lactic acid levels. The knockdown of circ-PRKCI decreased glucose and lactic acid levels, which were reversed by FOXK1 overexpression. In conclusion, the findings of the present study suggested that circ-PRKCI may promote the viability, invasion and migration of HCC cells by sponging miR-1294 and miR-186-5p to upregulate FOXK1 expression levels.
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Affiliation(s)
- Wenqi Chen
- Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Cancer Research Institute, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Yuehua Li
- Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Cancer Research Institute, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Jing Zhong
- Institute of Clinical Medicine, First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, P.R. China
| | - Gebo Wen
- Key Laboratory of Cancer Cellular and Molecular Pathology in Hunan Province, Cancer Research Institute, Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China
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Predicting Associations of miRNAs and Candidate Gastric Cancer Genes for Nanomedicine. NANOMATERIALS 2021; 11:nano11030691. [PMID: 33801990 PMCID: PMC8000878 DOI: 10.3390/nano11030691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/03/2021] [Accepted: 03/08/2021] [Indexed: 12/17/2022]
Abstract
Nanoscale miRNAs regulate the synthesis of most human proteins involved in differentiation, proliferation, cell cycle, apoptosis, and other processes associated with the growth and the development of an organism. miRNAs also play a number of important roles in the development of gastric cancer. In this work, we studied the quantitative characteristics of miRNA interactions with 69 candidate gastric cancer genes using bioinformatics approaches. To this end, the MirTarget program was used, which determines the characteristics of miRNA binding to mRNA in the 5′UTR, CDS, and 3′UTR. Associations of miRNAs with alternative target genes and associations of genes with alternative miRNAs were established. The cluster organization of miRNA binding sites (BSs) in mRNA was revealed, leading to the emergence of miRNA competition for binding to the mRNA of a target gene. Groups of target genes with clusters of overlapping BSs include miR-5095, miR-619-5p, miR-1273 family, miR-466, ID01030.3p-miR, ID00436.3p-miR, miR-574-5p, and ID00470.5p-miR. In the defined associations of target genes and miRNAs, miRNA BSs are organized into clusters of multiple BSs, which facilitate the design and the development of a system of chips that can be used to control the state of miRNA and target genes associations in gastric cancer.
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10
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Wu D, Li H, Wang J, Li H, Xiao Q, Zhao X, Huo Z. LncRNA NEAT1 promotes gastric cancer progression via miR-1294/AKT1 axis. Open Med (Wars) 2020; 15:1028-1038. [PMID: 33336058 PMCID: PMC7718639 DOI: 10.1515/med-2020-0218] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/17/2020] [Accepted: 07/08/2020] [Indexed: 12/22/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) were reported to promote the development of gastric cancer (GC). Nuclear-enriched abundant transcript 1 (NEAT1) played a great role in diverse cancers, but the mechanism of NEAT1 in GC remains indistinct. NEAT1 and AKT1 were distinctly up-regulated and miR-1294 was down-regulated in GC tissues and cells. Cell proliferation and metastasis were refrained but apoptosis was promoted in GC cells after knockdown of NEAT1. NEAT1 negatively regulated miR-1294 expression, and the miR-1294 inhibitor reverted the si-NEAT1-induced effect on GC cells. NEAT1 modulated AKT1 expression through miR-1294, and the si-NEAT1-induced effect was relieved by AKT1. NEAT1 affected phosphatidylinositol 3-kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) signaling pathway via regulating miR-1294 and AKT1. NEAT1 could modulate cell proliferation, apoptosis, and metastasis in GC cells by regulating the PI3K/AKT/mTOR signaling pathway via the miR-1294/AKT1 axis, showing the great potential for NEAT1 as a valid biomarker in the progression and treatment of GC.
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Affiliation(s)
- Dianchao Wu
- Department of Surgical Oncology, Xingtai People’s Hospital, No.16, Hongxing Street, Xingtai, 054031, Hebei, China
| | - Hui Li
- Department of Surgical Oncology, Xingtai People’s Hospital, No.16, Hongxing Street, Xingtai, 054031, Hebei, China
| | - Junfeng Wang
- Department of Colorectal Surgery, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Hua Li
- Department of Surgical Oncology, Xingtai People’s Hospital, No.16, Hongxing Street, Xingtai, 054031, Hebei, China
| | - Qihai Xiao
- Department of Surgical Oncology, Xingtai People’s Hospital, No.16, Hongxing Street, Xingtai, 054031, Hebei, China
| | - Xiaofeng Zhao
- Department of Surgical Oncology, Xingtai People’s Hospital, No.16, Hongxing Street, Xingtai, 054031, Hebei, China
| | - Zhibin Huo
- Department of Surgical Oncology, Xingtai People’s Hospital, No.16, Hongxing Street, Xingtai, 054031, Hebei, China
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