Frequent variations in cancer-related genes may play prognostic role in treatment of patients with chronic myeloid leukemia

BMC Genetics
Alexander V LavrovSergey I Kutsev

Abstract

Genome variability of host genome and cancer cells play critical role in diversity of response to existing therapies and overall success in treating oncological diseases. In chronic myeloid leukemia targeted therapy with tyrosine kinase inhibitors demonstrates high efficacy in most of the patients. However about 15 % of patients demonstrate primary resistance to standard therapy. Whole exome sequencing is a good tool for unbiased search of genetic variations important for prognosis of survival and therapy efficacy in many cancers. We apply this approach to CML patients with optimal response and failure of tyrosine kinase therapy. We analyzed exome variations between optimal responders and failures and found 7 variants in cancer-related genes with different genotypes in two groups of patients. Five of them were found in optimal responders: rs11579366, rs1990236, rs176037, rs10653661, rs3803264 and two in failures: rs3099950, rs9471966. These variants were found in genes associated with cancers (ANKRD35, DNAH9, MAGEC1, TOX3) or participating in cancer-related signaling pathways (THSD1, MORN2, PTCRA). We found gene variants which may become early predictors of the therapy outcome and allow development of new early prognostic tests...Continue Reading

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Methods Mentioned

BETA
exome sequencing
PCR

Software Mentioned

GeneCards
Torrent Suite
IGV browser
browser
SIFT
Variant Effect Predictor
ClinVar
IGV
Partek Genomics Suite
PolyPhen

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