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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cytojournal
2017 ; 14
(ä): 7
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Next-generation sequencing of non-small cell lung cancer using a customized,
targeted sequencing panel: Emphasis on small biopsy and cytology
#MMPMID28413430
DiBardino DM
; Rawson DW
; Saqi A
; Heymann JJ
; Pagan CA
; Bulman WA
Cytojournal
2017[]; 14
(ä): 7
PMID28413430
show ga
BACKGROUND: Next-generation sequencing (NGS) with a multi-gene panel is now
available for patients with lung adenocarcinoma, but the performance
characteristics and clinical utility of this testing are not well-described. We
present the results of an extended 467 gene panel in a series of advanced, highly
selected nonsmall cell lung cancer (NSCLC) patients using a range of specimens,
including predominantly small biopsy and cytology specimens. MATERIALS AND
METHODS: A retrospective review of 22 NSCLC biopsies sent for NGS using an
extended gene panel from January 2014 to July 2015. The customized NGS panel
sequences 467 cancer-associated genes with exonic and intronic sequences obtained
from purified tumor DNA. Genomic alterations, patient characteristics, and
success of testing were determined. RESULTS: The majority of samples tested were
metastatic lung adenocarcinoma on final pathology. Of the 22 specimens tested, 5
(22.7%) were surgical resections and 17 (77.3%) were small biopsy and cytology
specimens. Twenty-one (95%) of the specimens were adequate for full sequencing
and yielded a total of 204 genomic alterations (average 8.9 per tumor), of which
17 (average 0.81 per tumor) were actionable and/or clinically relevant. Genomic
alterations were found most commonly in the TP53, EGFR, EPHB1, MLL3, APC, SETD2,
KRAS, DNMT3A, RB1, CDKN2A, ARID1A, EP300, KDM6B, RAD50, STK11, and BRCA2 genes.
CONCLUSIONS: NGS using a comprehensive gene panel was performed successfully in
95% of all NSCLC cases in this series, including 94% small biopsy and cytology
specimens and 100% surgical resections. This custom assay was performed on a
range of tumor specimens and demonstrates that small specimens are able to
provide a similar depth of information as larger ones. As many patients present
at an advanced stage and only small specimens are obtained, the information these
provide has the potential for guiding treatment in highly selected patients with
advanced lung adenocarcinoma.