参与Streptococcus mutans和人类大动脉内皮细胞之间的相互作用的物质P
Takahiko Oho1, Emi Nagata2, Naofumi Tamaki1
1Department of Preventive Dentistry, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
Archives of oral biology
|February 6, 2026
概括
物质P (SP) 和DMBT1保护人类大动脉细胞免受Streptococcus mutans的感染,这种细菌与牙损伤和心血管疾病 (CVD) 有关. SP减少细菌入侵,炎症和细胞损伤,与DMBT1.1.结合时效果得到增强.
科学领域:
- 心血管科学 心血管科学
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
背景情况:
- 突变性链球菌与牙损伤和心血管疾病 (CVD) 有关.
- 物质P (SP) 在心血管生理学和病理学中发挥作用.
- 在心血管疾病中,S. mutans,SP和人类大动脉内皮细胞 (HAEC) 之间的相互作用尚未被探索.
研究的目的:
- 研究由S. mutans刺激的HAEC中SP表达的情况.
- 澄清SP在S. mutans-HAEC相互作用中的作用.
- 在CVD的背景下,检查SP与DMBT1的合作行动.
主要方法:
- 通过S. mutans菌株刺激HAECs.
- 通过点滴和RT-PCR分析了SP表达.
- 评估了S. mutans的结合,聚合,入侵,细胞因子的产生和细胞毒性.
主要成果:
- 在HAEC中,S. mutans诱导了SP的产生.
- SP直接结合并结合S.突变体,特别是与DMBT1.1.
- 在HAEC中,SP减少了S. mutans的入侵,细胞因子的释放和细胞毒性.
- DMBT1增强了SP的保护作用.
结论:
- 具有DMBT1的SP可以在HAEC中提供对S. mutans诱导的CVD过程的保护.
- SP调节了对S. mutans的HAEC反应,减轻了病原性影响.
- 这凸显了SP和DMBT1在心血管疾病预防中的潜在治疗作用.
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