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NTRK1 fusions for the therapeutic intervention of Korean patients with colon cancer.

ABSTRACT: The identification and clinical validation of cancer driver genes are essential to accelerate the translational transition of cancer genomics, as well as to find clinically confident targets for the therapeutic intervention of cancers. Here we identified recurrent LMNA-NTRK1 and TPM3-NTRK1 fusions in Korean patients with colon cancer (3 out of 147, 2%) through next-generation RNA sequencing (RNA-seq). NTRK1 fusions were mutually exclusive oncogenic drivers of colon cancer that were accompanied with in vitro potential of colony formation and in vivo tumorigenicity comparable to KM12, a human colon cancer cell line harboring TPM3-NTRK1 fusion. NTRK1-encoded TrkA protein was prevalent in 11 out of 216 Korean (5.1%) and 28 out of 472 Chinese patients (5.9%) from independent cohorts, respectively. The expression level of TrkA was significantly correlated with NTRK1 fusion (p = 0.0192), which was verified by a fluorescence in situ hybridization (FISH). Korean patients with TrkA-positive colon cancer had a marginal but significant shorter overall survival time than TrkA-negative colon cancer [hazard ratio (HR) = 0.5346, 95% confidential interval (CI) = 0.2548-0.9722, p = 0.0411]. In addition, KM12 cell line was sensitive to selective TrkA inhibitors. These results demonstrate that NTRK1 fusion is granted as a clinically relevant target for therapeutic intervention of colon cancer.

SUBMITTER: Park DY

PROVIDER: S-EPMC4885001 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature

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NTRK1 fusions for the therapeutic intervention of Korean patients with colon cancer.

Park Do Youn DY Choi Chan C Shin Eunji E Lee Jae Hyuk JH Kwon Chae Hwa CH Jo Hong-Jae HJ Kim Hyeong-Rok HR Kim Hyun Sung HS Oh Nahmgun N Lee Ji Shin JS Park Ok Ku OK Park Eok E Park Jonghoon J Shin Jong-Yeon JY Kim Jong-Il JI Seo Jeong-Sun JS Park Hee Dong HD Park Joonghoon J

Oncotarget 20160201 7

The identification and clinical validation of cancer driver genes are essential to accelerate the translational transition of cancer genomics, as well as to find clinically confident targets for the therapeutic intervention of cancers. Here we identified recurrent LMNA-NTRK1 and TPM3-NTRK1 fusions in Korean patients with colon cancer (3 out of 147, 2%) through next-generation RNA sequencing (RNA-seq). NTRK1 fusions were mutually exclusive oncogenic drivers of colon cancer that were accompanied w ...[more]

PMID: 26716414

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NTRK1 fusions for the therapeutic intervention of Korean patients with colon cancer.

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NTRK1 fusions for the therapeutic intervention of Korean patients with colon cancer.

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