Detection of circulating tumour cell clusters in human glioblastoma.

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Authors

Krol, I
Castro-Giner, F
Maurer, M
Gkountela, S
Szczerba, BM
Scherrer, R
Coleman, N
Carreira, S
Bachmann, F
Anderson, S
Engelhardt, M
Lane, H
Evans, TRJ
Plummer, R
Kristeleit, R
Lopez, J
Aceto, N

Document Type

Journal Article

Date

2018-08-14

Date Accepted

2018-06-25

Abstract

Human glioblastoma (GBM) is a highly aggressive, invasive and hypervascularised malignant brain cancer. Individual circulating tumour cells (CTCs) are sporadically found in GBM patients, yet it is unclear whether multicellular CTC clusters are generated in this disease and whether they can bypass the physical hurdle of the blood-brain barrier.  Here, we assessed CTC presence and composition at multiple time points in 13 patients with progressing GBM during an open-label phase 1/2a study with the microtubule inhibitor BAL101553. We observe CTC clusters ranging from 2 to 23 cells and present at multiple sampling time points in a GBM patient with pleomorphism and extensive necrosis, throughout disease progression. Exome sequencing of GBM CTC clusters highlights variants in 58 cancer-associated genes including ATM, PMS2, POLE, APC, XPO1, TFRC, JAK2, ERBB4 and ALK. Together, our findings represent the first evidence of the presence of CTC clusters in GBM.

Citation

British journal of cancer, 2018, 119 (4), pp. 487 - 491

Source Title

Publisher

NATURE PUBLISHING GROUP

ISSN

0007-0920

eISSN

1532-1827

Research Team

Medicine (de Bono Prostate)
Molecular Addictions
Cancer Biomarkers

Notes