A novel lncRNA-responsive and xenobiotic receptor-mediated regulation of drug metabolism and disposition

一种新的lncRNA响应性和异生物质受体介导的药物代谢调节， 处置 摘要 药物代谢和处置是重要的外源性反应。长链非编码RNA（lncRNA） 是长度大于200个核苷酸（nt）的非编码RNA，并且不具有蛋白质编码潜力。 虽然lncRNA的许多生物学功能已被认识，但尚不清楚lncRNA是否以及如何被用于治疗癌症。 lncRNA可以调节药物代谢酶和转运蛋白的表达，如果是这样， 调节与癌症化学抗性有关。通过癌症非编码基因的综合分析， 通过对505个癌细胞系的基因组和高通量药物筛选数据的初步研究，我们发现 并在功能上表征了一组ADME（药物吸收、分布、代谢和排泄） 化学抗性lncRNA，包括LINC 00992，其上调与对更多的耐药性相关。 超过100种化疗化合物，并可通过以下途径调节药物代谢酶和转运蛋白 与异生物质核受体相互作用。我们假设ADME化疗耐药性的失调 lncRNA是癌症化学抗性发展的重要贡献者。机械地，ADME 化学抗性lncRNA通过其对药物代谢酶的调节来影响化学抗性， 负责化疗药物代谢和处置的转运蛋白。我们提出了三 具体目标是测试我们的假设：在目标1中，我们将进行生物信息学分析和分子克隆， lncRNA与癌症化疗耐药性和临床预后相关目标2：我们将发挥作用 使用体内和体外癌症表征ADME化学抗性lncRNA，包括LINC 00992 化疗模型。在目标3中：我们将确定ADME化疗耐药的机制， lncRNA，包括LINC 00992，调节药物代谢酶和转运蛋白的表达。 化疗仍然是癌症患者临床管理的主要手段，但化疗耐药性是一个重要因素。 要克服的重大挑战。了解新型lncRNA反应性和异源性核受体- 介导的化疗耐药性将有助于提供新的策略，以提高治疗效果，并避免 化学抗性的发展。

A novel lncRNA-responsive and xenobiotic receptor-mediated regulation of drug metabolism and disposition Abstract Drug metabolism and disposition are essential xenobiotic responses. The long non-coding RNAs (lncRNAs) are non-coding RNAs larger than 200 nucleotides (nt) in length and do not have protein-coding potentials. Although many of the biological functions of lncRNAs have been recognized, it is unclear whether and how lncRNAs can regulate the expression of drug-metabolizing enzymes and transporters and if so, whether the regulations are implicated in cancer chemo-resistance. Through integrative analysis of cancer non-coding genomic and high-through drug screening data of 505 cancer cell lines, our preliminary study have discovered and functionally characterized a group of ADME(drug absorption, distribution, metabolism, and excretion) chemo-resistance lncRNAs, including LINC00992, whose up-regulation is associated with resistance to more than 100 chemotherapy compounds and may regulate drug-metabolizing enzymes and transporters through interacting with xenobiotic nuclear receptor. We hypothesize that dysregulation of ADME chemo-resistance lncRNAs is an important contributor for the development of cancer chemo-resistance. Mechanistically, ADME chemo-resistance lncRNAs affect chemo-resistance through their regulation of drug-metabolizing enzymes and transporters that are responsible for the metabolism and disposition of chemotherapy drugs. We propose three specific aims to test our hypotheses: In Aim 1, we will perform bioinformatic analysis and molecularly clone of lncRNAs associated with cancer chemo-resistance and clinical prognosis. In Aim 2: we will functional characterize of ADME chemo-resistance lncRNAs, including LINC00992, using in vivo and in vitro cancer chemotherapy models. In Aim 3: we will determine the mechanism by which ADME chemo-resistance lncRNAs, including LINC00992, regulate the expression of drug-metabolizing enzymes and transporters. Chemotherapy remains a mainstay in the clinical management of cancer patients, but chemo-resistance is a major challenge to overcome. Understanding the novel lncRNA responsive and xenobiotic nuclear receptor- mediated chemo-resistance will help provide novel strategies to enhance therapeutic efficacy and avoid the development of chemo-resistance.