Identification of susceptibility to chemotherapy induced peripheral neuropathy using patient stem cell derived sensory neurons

项目摘要/摘要 应用患者干细胞鉴定化疗所致周围神经病的易感性 感觉神经元 化疗所致周围神经病发病机制的研究现状 (CIPN)极其有限，更重要的是，没有办法确定谁处于风险之中。在这份提案中， 我们将使用患者干细胞产生的人类神经元来测试CIPN体外模型的实用性 用于研究CIPN风险的细胞。感觉神经元，CIPN中最常见的神经元，将被 从接受化疗紫杉醇治疗的患者产生的IPSC株产生 不是，是发展CIPN。这些神经元对紫杉醇诱导的神经毒性的敏感性将被测量为 确定患有CIPN的个体的神经元是否更容易受到化疗神经毒性的影响 与年龄、性别和剂量相匹配的未患CIPN的对照组相比。感觉神经元 也会接触到其他类别的化疗药物，这也会导致周围神经病变 尽管有不同的抗肿瘤机制，但要确定感觉神经元是否对 化疗引起的毒性是某些类别的药物的通用或特异的。这些发现可能有助于 在治疗前识别有CIPN风险的患者，并了解导致CIPN的因素 CIPN易感性。

Project Summary/Abstract Identification of susceptibility to chemotherapy induced peripheral neuropathy using patient stem cell derived sensory neurons Current understanding of the mechanisms responsible for chemotherapy induced peripheral neuropathy (CIPN) is extremely limited and more importantly, there is no way of identifying who is at risk. In this proposal, we will test the utility of an in-vitro model of CIPN using human neurons generated from patient-derived stem cells for the study of CIPN risk. Sensory neurons, the neurons most commonly affected in CIPN, will be generated from iPSC lines generated from patients treated with the chemotherapeutic paclitaxel who did, or did not, develop CIPN. The susceptibility of these neurons to paclitaxel-induced neurotoxicity will be measured to determine whether neurons from individuals with CIPN are more vulnerable to chemotherapeutic neurotoxicity than those from their age, gender and dose matched controls who did not develop CIPN. The sensory neurons will also be exposed to other classes of chemotherapeutic agents, which also cause peripheral neuropathy despite distinct antineoplastic mechanisms, to determine whether sensory neuron susceptibility to chemotherapy-induced toxicity is generic or specific to certain classes of drug. These findings could contribute to identifying patients at risk for CIPN prior to their treatment and understanding the factors which contribute to CIPN susceptibility.