ArticleFrontiers in immunology2023
TPST2-mediated receptor tyrosine sulfation enhances leukocidin cytotoxicity and
Article in Frontiers in immunology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Staphylococcus aureus-vascular endothelium interactions: Mechanisms and therapeutic opportunities.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026Review
- Association of circulating leptin concentration with the risk of Clostridium difficile colitis and exploration of their associated mediators: A mendelian randomisation study.Journal, genetic engineering & biotechnology · 2026Article
- TPST2-mediated tyrosine sulfation orchestrates porcine preimplantation development.BMC biology · 2026Article
- Prognostic and therapeutic implications of disulfidptosis-related genes in multiple myeloma.Frontiers in immunology · 2025Article
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Authors and funding
7 authors.
Funding
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Abstract
Background: An essential fact underlying the severity of Method: In this study, we used small interfering RNA library (Horizon/Dharmacon) to screen potential genes that affect leukocidin binding on receptors. The cell permeability was investigated through flow cytometry measuring the internalization of 4',6-diamidino-2-phenylindole. Expression of C5a anaphylatoxin chemotactic receptor 1 (C5aR1), sulfated C5aR1 in, and binding of 6x-His-tagged Hemolysin C (HlgC) and Panton-Valentine leukocidin (PVL) slow-component to THP-1 cell lines was detected and analyzed via flow cytometry. Bacterial burden and Survival analysis experiment was conducted in WT and myeloid TPST-cko C57BL/6N mice. Results: After short hairpin RNA (shRNA) knockdown of TPST2 gene in THP-1, HL-60, and RAW264.7, the cytotoxicity of HlgAB, HlgCB, and Panton-Valentine leukocidin on THP-1 or HL-60 cells was decreased significantly, and the cytotoxicity of HlgAB on RAW264.7 cells was also decreased significantly. Knockdown of TPST2 did not affect the C5aR1 expression but downregulated cell surface C5aR1 tyrosine sulfation on THP-1. In addition, we found that the binding of HlgC and LukS-PV on cell surface receptor C5aR1 was impaired in C5aR1 Conclusion: These results indicate that phagocyte TPST2 mediates the bicomponent leukocidin cytotoxicity by promoting cell membrane receptor sulfation modification that facilitates its binding to leukocidin S component.
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