相关实验视频
Updated: Jun 28, 2025

A Murine Model of Group B Streptococcus Vaginal Colonization
Published on: November 16, 2016
研究选择性雌激素受体调节剂对Streptococcus mutans的抑制作用
Shengnan Liao1, Lü Weitong2, Quan Tang2
1State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
选择性雌激素受体调节剂 (SERM) 显示出对Streptococcus mutans的抗菌作用. 托雷米芬,他莫西芬,克洛米芬和拉洛西芬的基因是 smu_546 和 smu_874.4 的基因.
科学领域:
- 微生物学 微生物学
- 药理学 药理学是指药理学的学科.
- 药物发现 药物发现 药物发现
背景情况:
- 突变性链球菌 (Streptococcus mutans) 是导致牙的主要原因之一.
- 需要新的抗菌剂来对抗S. mutans感染.
研究的目的:
- 检查FDA批准的小分子药物对S. mutans的抗菌活性.
- 研究选择性雌激素受体调节器 (SERM) 对S. mutans.的抗菌机制.
主要方法:
- 对426种FDA批准的抗S. mutans药物的最小抑制度 (MIC) 测定.
- 随机转位子突变库选,以确定S. mutans中的SERM目标.
主要成果:
- 托雷米芬,塔莫西芬,克洛米芬和拉洛西芬显示出对S. mutans有显著的抗菌作用.
- 突变库查发现了两种对克洛米芬耐药的S. mutans菌株.
- 在耐药菌株中,转子体插入部位被映射到smu_546和smu_874.4基因.
结论:
- 包括toremiphene,tamoxifen,clomiphene和raloxifene在内的SERM具有强大的抗菌活性,可以对抗S. mutans.
- 这些SERM的抗菌标可能是smu_546和smu_874基因编码的蛋白质.
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