Distinct portrayal of lesions in synchronous multifocal lung adenocarcinoma revealed by genome sequencing

Distinguishing multiple primary lung cancers in the synchronous multifocal intrapulmonary lesions has important significance on clinical staging and therapeutic decision. To investigate genomic aberration profiles, we applied whole genome and whole exome sequencing, and microarray-based comparative genomic hybridization on 15 intrapulmonary tumors derived from six patients with synchronous multifocal lung cancers having similar histological diagnosis. Any pair of intrapulmonary tumors in a single patient, which shared the identical genetic background and environment, showed an extinctive heterogeneity between each other. Phylogenetic relationship analysis indicated an independently branched evolution among all the tumors, suggesting they were multiple primary lung cancers. EGFR or KRAS mutations were found in 7 or 3 out of the 15 tumors, from 3 or 2 patients, respectively. Somatic mutational heterogeneity of these two genes in a single patient was also observed. Our analysis indicates genomic aberration profiling is valuable for identification of multiple primary lung cancer, especially when high histopathological concordance was observed between lesions. We also suggest a thoroughly molecular diagnosis against therapeutic target genes should be taken for each accessible nodule before making a plan for adjuvant therapy.

Type: Other
Archiver: European Genome-Phenome Archive (EGA)

1 Dataset 1 Publication

Click on a Dataset ID in the table below to learn more, and to find out who to contact about access to these data

Dataset ID	Description	Technology	Samples
EGAD00001003458	Fastq data of genomics heterogeneity of multiple synchronous lung cancer. Whole-genome sequencing (WGS) were performed in 3 tumour samples, one regional lymph node metastasis sample and peripheral blood sample from the same patient with MSLCs.	Illumina HiSeq 2000	6

Publications	Citations
Genomic heterogeneity of multiple synchronous lung cancer. Liu Y, Zhang J, Li L, Yin G, Zhang J, Zheng S, Cheung H, Wu N, Lu N, Mao X, Yang L, Zhang J, Zhang L, Seth S, Chen H, Song X, Liu K, Xie Y, Zhou L, Zhao C, Han N, Chen W, Zhang S, Chen L, Cai W, Li L, Shen M, Xu N, Cheng S, Yang H, Lee JJ, Correa A, Fujimoto J, Behrens C, Chow CW, William WN, Heymach JV, Hong WK, Swisher S, Wistuba II, Wang J, Lin D, Liu X, Futreal PA, Gao Y. Nat Commun 7: 2016 13200	92

Publications

Citations

Genomic heterogeneity of multiple synchronous lung cancer.
Liu Y, Zhang J, Li L, Yin G, Zhang J, Zheng S, Cheung H, Wu N, Lu N, Mao X, Yang L, Zhang J, Zhang L, Seth S, Chen H, Song X, Liu K, Xie Y, Zhou L, Zhao C, Han N, Chen W, Zhang S, Chen L, Cai W, Li L, Shen M, Xu N, Cheng S, Yang H, Lee JJ, Correa A, Fujimoto J, Behrens C, Chow CW, William WN, Heymach JV, Hong WK, Swisher S, Wistuba II, Wang J, Lin D, Liu X, Futreal PA, Gao Y. Nat Commun 7: 2016 13200