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Wang Z, Chen G, Yuan D, Wu P, Guo J, Lu Y, Wang Z. Caveolin-1 promotes glioma proliferation and metastasis by enhancing EMT via mediating PAI-1 activation and its correlation with immune infiltrates. Heliyon 2024; 10:e24464. [PMID: 38298655 PMCID: PMC10827802 DOI: 10.1016/j.heliyon.2024.e24464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 02/02/2024] Open
Abstract
Glioma is typically characterized by a poor prognosis and is associated with a decline in the quality of life as the disease advances. However, the development of effective therapies for glioma has been inadequate. Caveolin-1 (CAV-1) is a membrane protein that plays a role in caveolae formation and interacts with numerous signaling proteins, compartmentalizing them in caveolae and frequently exerting direct control over their activity through binding to its scaffolding domain. Although CAV-1 is a vital regulator of tumour progression, its role in glioma remains unclear. Our findings indicated that the knockdown of CAV-1 significantly inhibits the proliferation and metastasis of glioma. Subsequent mechanistic investigations demonstrated that CAV-1 promotes proliferation and metastasis by activating the photoshatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling pathway. Furthermore, we demonstrated that CAV-1 overexpression upregulates the expression of serpin peptidase inhibitor, class E, member 1 (SERPINE1, also known as PAI-1), which serves as a marker for the epithelial-mesenchymal transition (EMT) process. Further research showed that PAI-1 knockdown abolished the CAV-1 mediated activation of PI3K/Akt signaling pathway. In glioma tissues, CAV-1 expression exhibited a correlation with unfavorable prognosis and immune infiltration among glioma patients. In summary, our study provided evidence that CAV-1 activates the PI3K/Akt signaling pathway by upregulating PAI-1, thereby promoting the proliferation and metastasis of glioma through enhanced epithelial-mesenchymal transition (EMT) and angiogenesis, and CAV-1 is involved in the immune infiltration.
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Affiliation(s)
- Zhaoxiang Wang
- Department of Neurosurgery, Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, No. 166 Yulong West Road, Yancheng, 224000, Jiangsu, China
- Department of Neurosurgery, The First People's Hospital of Yancheng, No. 166 Yulong West Road, Yancheng, 224000, Jiangsu, China
| | - Gang Chen
- Department of Neurosurgery, Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, No. 166 Yulong West Road, Yancheng, 224000, Jiangsu, China
- Department of Neurosurgery, The First People's Hospital of Yancheng, No. 166 Yulong West Road, Yancheng, 224000, Jiangsu, China
| | - Debin Yuan
- Department of Neurosurgery, Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, No. 166 Yulong West Road, Yancheng, 224000, Jiangsu, China
- Department of Neurosurgery, The First People's Hospital of Yancheng, No. 166 Yulong West Road, Yancheng, 224000, Jiangsu, China
| | - Peizhang Wu
- Department of Neurosurgery, Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, No. 166 Yulong West Road, Yancheng, 224000, Jiangsu, China
- Department of Neurosurgery, The First People's Hospital of Yancheng, No. 166 Yulong West Road, Yancheng, 224000, Jiangsu, China
| | - Jun Guo
- Department of Neurosurgery, Yancheng First Hospital, Affiliated Hospital of Nanjing University Medical School, No. 166 Yulong West Road, Yancheng, 224000, Jiangsu, China
- Department of Neurosurgery, The First People's Hospital of Yancheng, No. 166 Yulong West Road, Yancheng, 224000, Jiangsu, China
| | - Yisheng Lu
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong University, Jiangsu, 226001, China
| | - Zhenyu Wang
- Department of Pediatric General Surgery, Shanghai Children's Hospital, School of Medicine, Shanghai Jiaotong University, No. 355 Luding Road, Shanghai, 200062, Shanghai, China
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Yang K, Yun F, Shi L, Liu X, Jia YF. SOX10 promotes the malignant biological behavior of basal-like breast cancer cells by regulating EMT process. Heliyon 2023; 9:e23162. [PMID: 38144326 PMCID: PMC10746469 DOI: 10.1016/j.heliyon.2023.e23162] [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: 09/15/2023] [Revised: 11/25/2023] [Accepted: 11/28/2023] [Indexed: 12/26/2023] Open
Abstract
Background The diagnostic utility of SRY-box transcription factor 10 (SOX10) expression in basal-like breast cancer (BLBC) has been reported previously. However, the effect of SOX10 on the malignancy of BLBC cells and the underlying molecular mechanisms remain unelucidated. Here, we investigate the regulatory mechanisms and roles of SOX10 in BLBC progression. Methods Sequencing data from patients with BLBC were extracted from the Cancer Genome Atlas database to determine the transcriptomic levels of SOX10 across breast cancer subtypes. Subsequently, the bioinformatics relevance of SOX10 in BLBC was investigated. Immunohistochemical assays were used to corroborate the protein expression of SOX10 in clinicopathological specimens (human breast cancer paraffin tissues). RNA interference was used to downregulate SOX10 expression, and the efficiency of interference was evaluated using quantitative PCR. The expression levels of molecules related to the epithelial-mesenchymal transition (EMT) pathway were determined by western blotting. Various assays, such as transwell, colony formation, and flow apoptosis assays, were conducted to assess the malignancy of BLBC cells (MDA-MB-231). Results Bioinformatics analyses revealed the differential expression of SOX10 in various breast cancer subtypes. An association between SOX10 and immune checkpoint expression was observed in BLBC. Additionally, immune correlation analysis indicated a positive relationship between SOX10 expression and effector immune cells. SOX10 was identified as a potential immunotherapeutic target. Juxtaposed with non-basal-like breast cancer (N-BLBC) and breast adenosis, immunohistochemical analysis revealed the upregulated expression of SOX10 in BLBC, indicating its potential diagnostic significance. Single-gene functional enrichment analysis indicated that SOX10 is associated with EMT and the tumor inflammatory index. Experimental outcomes from cellular assays suggested that the downregulation of SOX10 inhibited multiple malignancy-associated behaviors in MDA-MB-231 cells, specifically affecting the EMT process, migration, invasion, proliferation, clone formation, and anti-apoptotic activities. Conclusions We concluded that SOX10 contributes to the malignancy of BLBC cells by modulating the EMT pathway. Moreover, we observed a notable correlation between SOX10 expression and immune responses, indicating the potential significance of SOX10 in immunotherapy.
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Affiliation(s)
- Kai Yang
- Department of Basic Medicine College, Inner Mongolia Medical University, Inner Mongolia, China
| | - Fen Yun
- Department of Pathology, Basic Medical College, Inner Mongolia Medical University, China
| | - Lin Shi
- Department of Pathology, Basic Medical College, Inner Mongolia Medical University, China
| | - Xia Liu
- Department of Pathology, Basic Medical College, Inner Mongolia Medical University, China
| | - Yong Feng Jia
- Department of Pathology, Basic Medical College, Inner Mongolia Medical University, China
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Tang Z, Li Z, Hou T, Zhang T, Yang B, Su J, Song Q. SiGra: single-cell spatial elucidation through an image-augmented graph transformer. Nat Commun 2023; 14:5618. [PMID: 37699885 PMCID: PMC10497630 DOI: 10.1038/s41467-023-41437-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 09/01/2023] [Indexed: 09/14/2023] Open
Abstract
Recent advances in high-throughput molecular imaging have pushed spatial transcriptomics technologies to subcellular resolution, which surpasses the limitations of both single-cell RNA-seq and array-based spatial profiling. The multichannel immunohistochemistry images in such data provide rich information on the cell types, functions, and morphologies of cellular compartments. In this work, we developed a method, single-cell spatial elucidation through image-augmented Graph transformer (SiGra), to leverage such imaging information for revealing spatial domains and enhancing substantially sparse and noisy transcriptomics data. SiGra applies hybrid graph transformers over a single-cell spatial graph. SiGra outperforms state-of-the-art methods on both single-cell and spot-level spatial transcriptomics data from complex tissues. The inclusion of immunohistochemistry images improves the model performance by 37% (95% CI: 27-50%). SiGra improves the characterization of intratumor heterogeneity and intercellular communication and recovers the known microscopic anatomy. Overall, SiGra effectively integrates different spatial modality data to gain deep insights into spatial cellular ecosystems.
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Affiliation(s)
- Ziyang Tang
- Department of Computer and Information Technology, Purdue University, Indiana, USA
| | - Zuotian Li
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indiana, USA
- Department of Computer Graphics Technology, Purdue University, Indiana, USA
| | - Tieying Hou
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indiana, USA
| | - Tonglin Zhang
- Department of Statistics, Purdue University, Indiana, USA
| | - Baijian Yang
- Department of Computer and Information Technology, Purdue University, Indiana, USA.
| | - Jing Su
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indiana, USA.
| | - Qianqian Song
- Department of Cancer Biology, Wake Forest University School of Medicine, North Carolina, USA.
- Department of Health Outcomes and Biomedical Informatics, College of Medicine, University of Florida, Florida, USA.
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