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Zhao M, Wang Y, Zhang Y, Li X, Mi J, Wang Q, Geng Z, Zuo L, Song X, Ge S, Zhang Z, Tang M, Li H, Wang Z, Jiang C, Su F. The upregulation of stromal antigen 3 expression suppresses the phenotypic hallmarks of hepatocellular carcinoma through the Smad3-CDK4/CDK6-cyclin D1 and CXCR4/RhoA pathways. BMC Gastroenterol 2022; 22:378. [PMID: 35941537 PMCID: PMC9361574 DOI: 10.1186/s12876-022-02400-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 06/23/2022] [Indexed: 11/10/2022] Open
Abstract
Background The stromal antigen 3 (STAG3) gene encodes an adhesion complex subunit that can regulate sister chromatid cohesion during cell division. Chromosome instability caused by STAG3 gene mutation may potentially promote tumor progression, but the effect of STAG3 on hepatocellular carcinoma (HCC) and the related molecular mechanism are not reported in the literature. The mechanism of the occurrence and development of HCC is not adequately understood. Therefore, the biological role of STAG3 in HCC remains to be studied, and whether STAG3 might be a sensitive therapeutic target in HCC remains to be determined. Methods The expression and clinical significance of STAG3 in HCC tissues and cell lines were determined by RT–qPCR and immunohistochemistry analyses. The biological functions of STAG3 in HCC were determined through in vitro and in vivo cell function tests. The molecular mechanism of STAG3 in HCC cells was then investigated by western blot assay. Results The mRNA expression of STAG3 was lower in most HCC cells than in normal cells. Subsequently, an immunohistochemical analysis of STAG3 was performed with 126 samples, and lower STAG3 expression was associated with worse overall survival in HCC patients. Moreover, cytofunctional tests revealed that the lentivirus-mediated overexpression of STAG3 in HCC cells inhibited cell proliferation, migration, and invasion; promoted apoptosis; induced G1/S phase arrest in vitro; and inhibited tumor growth in vivo. Furthermore, studies of the molecular mechanism suggested that the overexpression of STAG3 increased Smad3 expression and decreased CDK4, CDK6, cyclin D1, CXCR4 and RhoA expression. Conclusion STAG3 exhibits anticancer effects against HCC, and these effects involve the Smad3-CDK4/CDK6-cyclin D1 and CXCR4/RhoA pathways. STAG3 is a tumor-suppressor gene that may serve as a potential target for molecular therapy, which provides a new idea for the treatment of HCC. Supplementary Information The online version contains supplementary material available at 10.1186/s12876-022-02400-z.
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Affiliation(s)
- Menglin Zhao
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233030, Anhui, China
| | - Yanyan Wang
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233030, Anhui, China
| | - Yue Zhang
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233030, Anhui, China
| | - Xinwei Li
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233030, Anhui, China
| | - Jiaqi Mi
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233030, Anhui, China
| | - Qiang Wang
- Department of Network Information Center, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, 233030, Anhui, China
| | - Zhijun Geng
- Department of Central Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Lugen Zuo
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233030, Anhui, China
| | - Xue Song
- Department of Central Laboratory, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Sitang Ge
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233030, Anhui, China
| | - Zining Zhang
- Department of Clinical Medicine Science, Bengbu Medical College, No. 2600 Donghai Road, Bengbu, 233030, Anhui, China
| | - Mingyue Tang
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233030, Anhui, China
| | - Huiyuan Li
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233030, Anhui, China
| | - Zishu Wang
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233030, Anhui, China
| | - Chenchen Jiang
- Cancer Neurobiology Group, School of Medicine & Public Health, The University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Fang Su
- Department of Medical Oncology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233030, Anhui, China.
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Al-Qahtani AA, Alarifi S, Alkahtani S, Stournaras C, Sourvinos G. Efficient proliferation and mitosis of glioblastoma cells infected with human cytomegalovirus is mediated by RhoA GTPase. Mol Med Rep 2020; 22:3066-3072. [PMID: 32945485 PMCID: PMC7453514 DOI: 10.3892/mmr.2020.11434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 06/22/2020] [Indexed: 11/06/2022] Open
Abstract
Human cytomegalovirus (HCMV) is a prevalent viral pathogen, which can cause severe clinical consequences in neonates, immunocompromised individuals, patients with AIDS, and organ and stem cell transplant recipients. HCMV inhibits the host cell cycle progress while the immediate-early protein 1 (IE1) tethers to condensed chromatin in mitotic cells. The present study investigated the effect of HCMV on the cell cycle in human glioblastoma cells, as well as the role of RhoA GTPase during mitosis in the same context. Live cell microscopy showed that despite the apparent cell cycle arrest at late stages of mitosis in normal fibroblasts, HCMV-infected U373MG cells successfully went through all stages of cell division. HCMV IE1 protein exhibited a remarkably tight association with mitotic chromosomes from early mitosis to late cytokinesis. Depletion of RhoA significantly impaired the proliferation rate of HCMV-infected U373MG cells; consistent with this observation, the number of cells entering mitosis was also decreased. These results demonstrated the differential behavior of HCMV during mitosis in a normal and a cancer background. Furthermore, RhoA may be a critical component for the efficient cell division of HCMV-infected glioblastoma cells, which subsequently ensures the maintenance of viral genomes.
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Affiliation(s)
- Ahmed A Al-Qahtani
- Department of Infection and Immunity, Research Centre, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Saud Alarifi
- Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Saad Alkahtani
- Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - George Sourvinos
- Laboratory of Clinical Virology, Medical School, University of Crete, 71003 Heraklion, Greece
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Yu P, Song H, Gao J, Li B, Liu Y, Wang Y. Vitamin D (1,25-(OH) 2D 3) regulates the gene expression through competing endogenous RNAs networks in high glucose-treated endothelial progenitor cells. J Steroid Biochem Mol Biol 2019; 193:105425. [PMID: 31302220 DOI: 10.1016/j.jsbmb.2019.105425] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 07/05/2019] [Accepted: 07/07/2019] [Indexed: 02/08/2023]
Abstract
Vitamin D (vit-D) supplementation can improve endothelial cell function in type 2 diabetes mellitus patients with vit-D insufficiency or deficiency. In the present study, we aimed to compare the expression profiles of circRNAs, lncRNAs, miRNAs, and mRNAs between 1,25-(OH)2D3-treated endothelial progenitor cells (EPCs) and control cells, and to further construct the 1,25-(OH)2D3-regulated ceRNA networks in EPCs. RNA sequencing was performed on the 1,25-(OH)2D3-treated EPCs and control cells derived from the bone marrow (BM). Bioinformatics analyses were performed to identify differentially expressed (DE) microRNAs (miRNAs), circular RNAs (circRNAs), mRNAs, and long non-coding RNAs (lncRNAs). Then Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were conducted to predict the function of genes. Competing endogenous RNA (ceRNA) networks were constructed with Cytoscape software. 1,25-(OH)2D3 application induced changes in the expression profiles of 1791 mRNAs, 2726 lncRNAs, 205 circRNAs, and 45 miRNAs in EPCs treated with high levels of glucose. These DE RNAs were associated with MMP and GTPase activities, specific signaling pathways, and components of actin, extracellular matrix, or adherens junction. DE circRNAs, which functioned independently of their linear host genes, interacted with miRNAs to serve as miRNA sponges in complex ceRNA networks. The data indicated that circRNAs and lncRNAs comprised ceRNAs to sponge effects of miRNAs on the expressions of mRNAs following 1,25-(OH)2D3 application in EPCs. 1,25-(OH)2D3 improved the function of EPCs via associated ceRNA interaction networks in diabetes patients.
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Affiliation(s)
- Ping Yu
- Department of Endocrinology, Shenzhen Samii Medical Center, Shenzhen, 518000, China; Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China.
| | - Haiyan Song
- Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
| | - Jiaxin Gao
- Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
| | - Bo Li
- Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
| | - Ying Liu
- Department of Endocrinology, Daqing People's Hospital (The Fifth Affiliated Hospital of Harbin Medical University), Daqing, 163316, China
| | - Yanhe Wang
- Department of Endocrinology, Shenzhen Samii Medical Center, Shenzhen, 518000, China; Department of Endocrinology, The Second Affiliated Hospital of Harbin Medical University, Harbin, 150086, China
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