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确定用于控制致病细菌的 рибо核酶抑制剂

Rute G Matos¹, Katie J Simmons², Colin W G Fishwick³

¹Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal.

International journal of molecular sciences

|August 10, 2024

概括

研究人员选了针对关键细菌酶RNaseII和PNPase的新抗菌化合物. 这种方法成功地识别了抑制剂,证明了开发针对耐药细菌的新型抗生素的可行策略.

科学领域:

微生物学和分子生物学
药物发现和药物化学

背景情况:

细菌的抗生素耐药性构成严重的全球健康威胁,需要开发新的治疗策略.
细菌外核核酶,如多核酸酶 (PNPase) 和RNase II,对于RNA代谢和微生物生存至关重要.
这些酶与各种病原体的毒性有关,使它们成为新的抗菌药物开发的有吸引力的目标.

研究的目的:

识别新型化学化合物,可以抑制来自大肠杆菌的必需细菌外核酶,RNase II和PNPase的活性.
验证使用虚拟高通量查 (vHTS) 与体外测试相结合用于发现抗菌剂的使用.
为开发下一代抗生素提供针对这些酶的原则证明.

主要方法:

虚拟高通量查 (vHTS) 用于预测与大肠杆菌RNase II和PNPase的活性位点结合的化合物.
已识别的化合物进行了体外查,以评估它们对外核糖酶活性的抑制作用.
评估了所选化合物对细菌细胞活力的影响.

主要成果:

vHTS成功地确定了与RNase II和PNPase活性位点预测的结合亲缘关系的化学化合物.
在体外查证实,几个已识别的化合物抑制了这些外核酶的酶活性.
一些经过验证的化合物还显示了细菌细胞活力的降低,表明了潜在的抗菌作用.

结论:

该研究表明,使用细菌RNase II和PNPase的结构信息进行虚拟查的有效性.
这种方法成功地确定了必不可少的外原核酶的新型抑制剂,验证了它们作为抗菌开发的标.
这些发现支持追求以结构为基础的药物设计,以细菌RNA加工酶为目标,以打击抗生素耐药性.

关键词:

这就是PNPase.RNase II第二部分在RNase R中使用RNase R.抗微生物药物抗微生物药物虚拟高通量选 (vHTS) 是指使用虚拟高通量选

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