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Ren L, Zhou P, Wu H, Liang Y, Xu R, Lu H, Chen Q. Caveolin-1 is a prognostic marker and suppresses the proliferation of breast cancer. Transl Cancer Res 2022; 10:3797-3810. [PMID: 35116679 PMCID: PMC8798413 DOI: 10.21037/tcr-21-1139] [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] [Received: 06/17/2021] [Accepted: 08/19/2021] [Indexed: 12/13/2022]
Abstract
Background To explore the role of caveolin-1 (Cav-1) in breast cancer (BC). Methods Cav-1 expression data were downloaded from the Tumor Immune Estimation Resource (TIMER) and Gene Expression Omnibus (GEO) databases. We compared the expression of Cav-1 in different tumor tissues and between BC tissues and normal tissues (NTs), as well as the differences between different clinical traits. Kaplan-Meier survival analysis and univariate and multivariate Cox regression analyses were used to determine whether Cav-1 serves as a prognostic factor. The correlations of Cav-1 expression with the immune microenvironment and infiltrating immune cells were also analyzed. Quantitative polymerase chain reaction (qPCR) was used to detect Cav-1 mRNA expression in the MCF-7, SKB-R3, MDB-MB-231, and SUM-159 cell lines. LV-Cav-1-RNAi was transfected into MCF-7 and MDB-MB-231 cells, and the MTT assay was used to detect cell proliferation. Subsequently, MDB-MB-231 cells carrying the Cav-1-RNAi gene were used to determine the effects of Cav-1 knockdown on tumor growth in vivo using a severe combined immunodeficiency (SCID) model. Results Cav-1 was enriched in most solid tumors, and its expression was lower in BC tissues than in NT. Cav-1 expression was shown to be related to patients’ clinical outcomes. Cav-1 was expressed in the MCF-7, SKB-R3, MDB-MB-231, and SUM-159 cell lines. The MTT assay revealed that the proliferative ability of MDB-MB-231 and MCF-7 cells was accelerated. The tumor volume of SCID mice administered with LV-Cav-1-RNAi cells was increased. Conclusions These results suggest that Cav-1 may serve as a suppressor in the development of BC.
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Affiliation(s)
- Liping Ren
- Department of Breast Disease, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Breast Disease, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Peijuan Zhou
- Department of Traditional Chinese Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Huajia Wu
- Department of Breast Disease, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Breast Disease, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuqi Liang
- Department of Breast Disease, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Breast Disease, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Rui Xu
- Department of Breast Disease, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Breast Disease, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hai Lu
- Department of Breast Disease, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Breast Disease, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qianjun Chen
- Department of Breast Disease, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Department of Breast Disease, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
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Dai Z, Sheng F, Sun N, Ji Y, Liao Q, Sun S, Yang F, Li W. Caveolin-1 promotes trophoblast cell invasion through the focal adhesion kinase (FAK) signalling pathway during early human placental development. Reprod Fertil Dev 2020; 31:1057-1067. [PMID: 30944060 DOI: 10.1071/rd18296] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 01/07/2019] [Indexed: 12/12/2022] Open
Abstract
Normal implantation and placental development depend on the appropriate differentiation and invasion of trophoblast cells. Inadequate trophoblast cell invasion results in pregnancy-related disorders, which endanger both mother and fetus; however, the mechanism of early placental development has not been fully explained. In this study we conducted gene expression profile analysis using mouse placental tissues at different developmental stages (embryonic day (E)7.5, E14.5 and E19.5) using series tests of cluster (STC) and Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathway analyses. Focal adhesion kinase (FAK) signalling pathway-related gene expression levels were verified using quantitative reverse transcription polymerase chain reaction and western blot. The results showed that caveolin-1 (Cav1) was downregulated in the placenta of unexplained spontaneous abortion subjects compared with that of induced abortion. Furthermore, by modulating CAV1 expression levels, CAV1 was shown to promote human trophoblast cell proliferation, migration and invasion by activating the FAK signalling pathway. These results indicate that CAV1 and the FAK signalling pathway are crucial for early placental development, which sheds new light on our understanding of the mechanisms of human trophoblast cell invasion and early development of the placenta.
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Affiliation(s)
- Zhihui Dai
- Department of Medical Genetics, Second Military Medical University, Shanghai, 200433, China
| | - Fei Sheng
- Centre of Reproductive Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Ningxia Sun
- Centre of Reproductive Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Yixuan Ji
- Centre of Reproductive Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Qiuying Liao
- Department of Medical Genetics, Second Military Medical University, Shanghai, 200433, China
| | - Shuhan Sun
- Department of Medical Genetics, Second Military Medical University, Shanghai, 200433, China
| | - Fu Yang
- Department of Medical Genetics, Second Military Medical University, Shanghai, 200433, China; and Corresponding authors. Emails: ;
| | - Wen Li
- Centre of Reproductive Medicine, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China; and Corresponding authors. Emails: ;
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