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Clinical and Genome-Wide Analysis of Cisplatin-Induced Peripheral Neuropathy in Survivors of Adult-Onset Cancer.

Dolan ME, El Charif O, Wheeler HE, Gamazon ER, Ardeshir-Rouhani-Fard S, Monahan P, Feldman DR, Hamilton RJ, Vaughn DJ, Beard CJ, Fung C, Kim J, Fossa SD, Hertz DL, Mushiroda T, Kubo M, Einhorn LH, Cox NJ, Travis LB, Platinum Study Group
Clin Cancer Res. 2017 23 (19): 5757-5768

PMID: 28611204 · PMCID: PMC5626588 · DOI:10.1158/1078-0432.CCR-16-3224

Our purpose was to characterize the clinical influences, genetic risk factors, and gene mechanisms contributing to persistent cisplatin-induced peripheral neuropathy (CisIPN) in testicular cancer survivors (TCSs). TCS given cisplatin-based therapy completed the validated EORTC QLQ-CIPN20 questionnaire. An ordinal CisIPN phenotype was derived, and associations with age, smoking, excess drinking, hypertension, body mass index, diabetes, hypercholesterolemia, cumulative cisplatin dose, and self-reported health were examined for 680 TCS. Genotyping was performed on the Illumina HumanOmniExpressExome chip. Following quality control and imputation, 5.1 million SNPs in 680 genetically European TCS formed the input set. GWAS and PrediXcan were used to identify genetic variation and genetically determined gene expression traits, respectively, contributing to CisIPN. We evaluated two independent datasets for replication: Vanderbilt's electronic health database (BioVU) and the CALGB 90401 trial. Eight sensory items formed a subscale with good internal consistency (Cronbach α = 0.88). Variables significantly associated with CisIPN included age at diagnosis (OR per year, 1.06; = 2 × 10), smoking (OR, 1.54; = 0.004), excess drinking (OR, 1.83; = 0.007), and hypertension (OR, 1.61; = 0.03). CisIPN was correlated with lower self-reported health (OR, 0.56; = 2.6 × 10) and weight gain adjusted for years since treatment (OR per Δkg/m, 1.05; = 0.004). PrediXcan identified lower expressions of and and higher expression as associated with CisIPN ( value for each < 5 × 10) with replication of meeting significance criteria (Fisher combined = 0.0089). CisIPN is associated with age, modifiable risk factors, and genetically determined expression level of Further study of implicated genes could elucidate the pathophysiologic underpinnings of CisIPN. .

©2017 American Association for Cancer Research.

MeSH Terms (20)

Adolescent Adult Aged Age Factors Age of Onset Cancer Survivors Cell Cycle Proteins Cisplatin Gene Expression Regulation, Neoplastic Genome-Wide Association Study Genotype Humans Hypertension Male Middle Aged Neoplasm Proteins Peripheral Nervous System Diseases Polymorphism, Single Nucleotide Risk Factors Testicular Neoplasms

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