Precision medicine approaches to lung adenocarcinoma with concomitant MET and HER2 amplification

Doo Yi Oh, Kyungsoo Jung, Ji Young Song, Seokhwi Kim, Sang Shin, Yong Jun Kwon, Ensel Oh, Woong Yang Park, Sang Yong Song, Yoon La Choi*

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

5 Citations (Scopus)


Background: Patient-derived xenograft (PDX) models are important tools in precision medicine and for the development of targeted therapies to treat cancer patients. This study aimed to evaluate our precision medicine strategy that integrates genomic profiling and preclinical drug-screening platforms, in order to personalize cancer treatments using PDX models. Methods: We performed array-comparative genomic hybridization, microarray, and targeted next-generation sequencing analyses, in order to determine the oncogenic driver mutations. PDX cells were obtained from PDXs and subsequently screened in vitro with 17 targeted agents. Results: PDX tumors recapitulated the histopathologic and genetic features of the patient tumors. Among the samples from lung cancer patients that were molecularly-profiled, copy number analysis identified unique focal MET amplification in one sample, 033 T, without RTK/RAS/RAF oncogene mutations. Although HER2 amplification in 033 T was not detected in the cancer panel, the selection of HER2-amplified clones was found in PDXs and PDX cells. Additionally, MET and HER2 overexpression were found in patient tumors, PDXs, and PDX cells. Crizotinib or EGFR tyrosine kinase inhibitor treatments significantly inhibited cell growth and impaired tumor sphere formation in 033 T PDX cells. Conclusions: We established PDX cell models using surgical samples from lung cancer patients, and investigated their preclinical and clinical implications for personalized targeted therapy. Additionally, we suggest that MET and EGFR inhibitor-based therapy can be used to treat MET and HER2-overexpressing lung cancers, without receptor tyrosine kinase /RAS/RAF pathway alterations.

Original languageEnglish
Article number535
JournalBMC Cancer
Issue number1
Publication statusPublished - 10 Aug 2017
Externally publishedYes


  • HER2
  • Lung cancer
  • Met
  • Patient-derived cells


Dive into the research topics of 'Precision medicine approaches to lung adenocarcinoma with concomitant MET and HER2 amplification'. Together they form a unique fingerprint.

Cite this