新型含有异醇烯的化合物,具有针对Mycobacterium tuberculosis的活性
Gabrielle Martinez1, Kirsten Tolentino1, Paridhi Sukheja1
1Calibr-Skaggs Institute for Innovative Medicines, a division of Scripps Research, La Jolla, CA 92037, United States.
研究人员确定了一种新型的异醇硫化合物,可以激活Mycobacterium tuberculosis (Mtb) 中的Rv1625c/Cya. 虽然模拟P15显示出有希望的巨细胞内活性和口服生物可用性,但有限的结构-活性关系阻止了进一步的发展.
科学领域:
- 药用化学 医学化学
- 微生物学 微生物学
- 药物发现 药物发现 药物发现
背景情况:
- 结核菌菌 (Mtb) 是一个重要的全球健康威胁.
- 识别新药标和激活剂对于开发新的抗结核病疗法至关重要.
- Rv1625c/Cya是Mtb的一个潜在目标.
研究的目的:
- 在Mtb中选Rv1625c/Cya的新型激活剂.
- 合成和优化伊索克萨提奥芬类似物,以提高功效和药理动力学特性.
- 为了研究已识别的化合物的结构-活性关系 (SAR).
主要方法:
- 在胆固醇介质中对MTB H37Rv进行ChemDiv分子图书馆的查.
- 合成了29种异二醇烯类似物.
- 在体外活性测试,包括内巨细胞EC50的确定.
- 鼠类药理动力学 (PK) 研究以评估口服生物利用性.
主要成果:
- 一种新型的异二醇烯被确定为可谓的Rv1625c/Cya激活剂.
- 同类型P15显示出强大的巨细胞内活性 (EC50=1.96μM).
- 在小鼠PK研究中,P15在20mg/kg的剂量中表现出58.0%的口服生物可用性.
- 观察到有限的SAR,阻碍了该化学系列的进一步优化.
结论:
- 已识别的异二醇烯系列最初显示出作为Mtb Rv1625c/Cya激活剂的承诺.
- 类似的P15具有良好的体外和体外的药物动力学特性.
- 有限的SAR表明,这种特定的化学支架可能不适合进一步开发抗结核病药物发现.
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