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2017 ; 6
(4
): 444-453
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gab.com Text
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Routine clinical use of circulating tumor cells for diagnosis of mutations and
chromosomal rearrangements in non-small cell lung cancer-ready for prime-time?
#MMPMID28904888
Pailler E
; Faugeroux V
; Oulhen M
; Catelain C
; Farace F
Transl Lung Cancer Res
2017[Aug]; 6
(4
): 444-453
PMID28904888
show ga
In non-small cell lung cancer (NSCLC), diagnosis of predictive biomarkers for
targeted therapies is currently done in small tumor biopsies. However, tumor
biopsies can be invasive, in some cases associated with risk, and tissue
adequacy, both in terms of quantity and quality is often insufficient. The
development of efficient and non-invasive methods to identify genetic alterations
is a key challenge which circulating tumor cells (CTCs) have the potential to be
exploited for. CTCs are extremely rare and phenotypically diverse, two
characteristics that impose technical challenges and impact the success of robust
molecular analysis. Here we introduce the clinical needs in this disease that
mainly consist of the diagnosis of epidermal growth factor receptor (EGFR)
activating alterations and anaplastic lymphoma kinase (ALK) rearrangement. We
present the proof-of-concept studies that explore the detection of these genetic
alterations in CTCs from NSCLC patients. Finally, we discuss steps that are still
required before CTCs are routinely used for diagnosis of EGFR-mutations and
ALK-rearrangements in this disease.