人类微生物组对抗糖尿病药物阿卡尔的耐药性进行编码
Jared Balaich1, Michael Estrella1, Guojun Wu2
1Department of Molecular Biology, Princeton University, Princeton, NJ, USA.
Nature
|November 25, 2021
概括
人类肠道细菌具有酶,可以使抗糖尿病药物阿卡尔失活. 这一发现揭示了微生物对非抗生素药物的耐药性,为药物有效性和微生物防御机制提供了新的视角.
科学领域:
- 微生物学
- 生物化学
- 药理学
背景情况:
- 人类微生物组包含许多未经表征的酶和代谢途径.
- 甲糖是一种抗糖尿病药物,可抑制α- 葡萄糖酶,影响碳水化合物代谢.
研究的目的:
- 识别和描述人类微生物组中修改阿卡尔的酶.
- 了解微生物组介导的阿卡尔耐药性的机制和流行情况.
主要方法:
- 进行基因组分析以发现新的酶.
- 生物化学测试以确认酶活性.
- 进行X射线结晶学以确定酶结构.
主要成果:
- 在人类肠道和口腔微生物群中发现了能化和非活性化的细菌酶 (基酶).
- 这些酶是特异性的,为宿主细菌提供生存优势.
- 在不同的人群中,甲糖不活性酶很常见.
结论:
- 人类微生物群对抗糖尿病药物阿卡尔具有广泛的耐药性.
- 这种抗性很可能是作为对抗结构上相似的内源分子的防御机制而演变的.
- 这些发现突显了微生物群对药物代谢和疗效的影响.
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