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Lin FY, Tsai YT, Huang CY, Lai ZH, Tsai CS, Shih CM, Lin CY, Lin YW. GroEL of Porphyromonas gingivalis-induced microRNAs accelerate tumor neovascularization by downregulating thrombomodulin expression in endothelial progenitor cells. Mol Oral Microbiol 2024; 39:47-61. [PMID: 37188376 DOI: 10.1111/omi.12415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 03/22/2023] [Accepted: 04/10/2023] [Indexed: 05/17/2023]
Abstract
We found that GroEL in Porphyromonas gingivalis accelerated tumor growth and increased mortality in tumor-bearing mice; GroEL promoted proangiogenic function, which may be the reason for promoting tumor growth. To understand the regulatory mechanisms by which GroEL increases the proangiogenic function of endothelial progenitor cells (EPCs), we explored in this study. In EPCs, MTT assay, wound-healing assay, and tube formation assay were performed to analyze its activity. Western blot and immunoprecipitation were used to study the protein expression along with next-generation sequencing for miRNA expression. Finally, a murine tumorigenesis animal model was used to confirm the results of in vitro. The results indicated that thrombomodulin (TM) direct interacts with PI3 K/Akt to inhibit the activation of signaling pathways. When the expression of TM is decreased by GroEL stimulation, molecules in the PI3 K/Akt signaling axis are released and activated, resulting in increased migration and tube formation of EPCs. In addition, GroEL inhibits TM mRNA expression by activating miR-1248, miR-1291, and miR-5701. Losing the functions of miR-1248, miR-1291, and miR-5701 can effectively alleviate the GroEL-induced decrease in TM protein levels and inhibit the proangiogenic abilities of EPCs. These results were also confirmed in animal experiments. In conclusion, the intracellular domain of the TM of EPCs plays a negative regulatory role in the proangiogenic capabilities of EPCs, mainly through direct interaction between TM and PI3 K/Akt to inhibit the activation of signaling pathways. The effects of GroEL on tumor growth can be reduced by inhibiting the proangiogenic properties of EPCs through the inhibition of the expression of specific miRNAs.
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Affiliation(s)
- Feng-Yen Lin
- Taipei Heart Institute, Taipei Medical University, Taiwan
- Division of Cardiology and Cardiovascular Research Center, Taipei Medical University Hospital, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Ting Tsai
- Taipei Heart Institute, Taipei Medical University, Taiwan
- Division of Cardiovascular Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chun-Yao Huang
- Taipei Heart Institute, Taipei Medical University, Taiwan
- Division of Cardiology and Cardiovascular Research Center, Taipei Medical University Hospital, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Biomedical Sciences and Engineering, National Central University, Taoyuan, Taiwan
| | - Ze-Hao Lai
- Institute of Oral Biology, National Yang Ming Chiao Tung University (Yangming Campus), Taipei, Taiwan
| | - Chien-Sung Tsai
- Division of Cardiovascular Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
- Department and Graduate Institute of Pharmacology, National Defense Medical Center, Taiwan
| | - Chun-Ming Shih
- Taipei Heart Institute, Taipei Medical University, Taiwan
- Division of Cardiology and Cardiovascular Research Center, Taipei Medical University Hospital, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Cheng-Yen Lin
- Healthcare Information and Management Department, Ming Chuan University, Taoyuan, Taiwan
| | - Yi-Wen Lin
- Institute of Oral Biology, National Yang Ming Chiao Tung University (Yangming Campus), Taipei, Taiwan
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