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实验室进化和全基因组分析,以研究人类单体细胞中化学疗法耐药性的研究

Juan Carlos Jado^1,2, Michelle Dow^2,3,4, Krypton Carolino⁵

¹Division of Host-Microbe Systems & Therapeutics, Department of Pediatrics, University of California, San Diego, Gilman Dr., La Jolla, CA, 92093, USA.

Scientific reports

|June 17, 2024

概括

研究人员使用近状人体细胞来研究抗癌药物耐药性机制. 这种方法成功地确定了已知和新药耐药性基因,验证了它对作用机制研究的有用性.

科学领域:

基因组学就是基因组学.
分子生物学分子生物学
药理学药理学是指药理学的学科.

背景情况:

实验室进化和全基因组分析对于研究微生物中的药物机制具有强大作用.
人类细胞的双体性质使识别药物耐药性变体变得复杂.
接近平形的人类细胞系为此类研究提供了潜在的解决方案.

研究的目的:

为了确定是否可以有效地用于行动机制 (MOA) 研究的平分体人体细胞.
为了在近平形的人类细胞系中进化耐药性,并识别潜在的遗传变化.
开发和验证用于分析耐药性突变的生物信息管道.

主要方法:

在HAP1细胞中,对五种抗癌药物 (多克索鲁比,格姆奇塔,埃托波西德,托波特坎,帕克利塔克塞尔) 产生了耐药性.
对28个耐药克隆进行了全基因组分析.
开发了一个生物信息管道来过高频,蛋白质改变基因和反复突变.

主要成果:

确定了21个已知耐药性或药物标 (例如,TOP1,TOP2A,DCK) 的强度丰富的基因.
在一些克隆中发现了包含额外抗性基因 (例如,ABCB1,RRM1) 的结构变异.
基因淘汰/淘汰实验以高精度验证了10个已识别的目标.

结论:

接近形的人类细胞适合进化和发现药物耐药性机制.
开发的生物信息管道准确地识别了赋予耐药性的基因.
这种方法使得在同位素背景下研究临床相关的耐药性机制成为可能.

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