A non-cell autonomous mouse model of CNS haemangioblastoma mediated by mutant KRAS.
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ICR Authors
Authors
Bao, L
Al-Assar, O
Drynan, LF
Arends, MJ
Tyers, P
Barker, RA
Rabbitts, TH
Al-Assar, O
Drynan, LF
Arends, MJ
Tyers, P
Barker, RA
Rabbitts, TH
Document Type
Journal Article
Date
2017-03-21
Date Accepted
2017-02-14
Abstract
Haemangioblastoma is a rare malignancy of the CNS where vascular proliferation causes lesions due to endothelial propagation. We found that conditionally expressing mutant Kras, using Rag1-Cre, gave rise to CNS haemangioblastoma in the cortex and cerebellum in mice that present with highly vascular tumours with stromal cells similar to human haemangioblastomas. The aberrant haemangioblastoma endothelial cells do not express mutant Kras but rather the mutant oncogene is expressed in CNS interstitial cells, including neuronal cells and progeny. This demonstrates a non-cell autonomous origin of this disease that is unexpectedly induced via Rag1-Cre expression in CNS interstitial cells. This is the first time that mutant RAS has been shown to stimulate non-cell autonomous proliferation in malignancy and suggests that mutant RAS can control endothelial cell proliferation in neo-vascularisation when expressed in certain cells.
Citation
Scientific reports, 2017, 7 pp. 44899 - ?
Source Title
Publisher
NATURE PORTFOLIO
ISSN
2045-2322
eISSN
2045-2322
Collections
Research Team
Chromosomal Translocations and Intracellular Antibody Therapeutics