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Scahill, C.M.* ; Digby, Z.* ; Sealy, I.M.* ; Wojciechowska, S.* ; White, R.J.* ; Collins, J.E.* ; Stemple, D.L.* ; Bartke, T. ; Mathers, M.E.* ; Patton, E.E.* ; Busch-Nentwich, E.M.*

Loss of the chromatin modifier Kdm2aa causes BrafV-600E -independent spontaneous melanoma in zebrafish.

PLoS Genet. 13:e1006959 (2017)
Publ. Version/Full Text Research data DOI PMC
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KDM2A is a histone demethylase associated with transcriptional silencing, however very little is known about its in vivo role in development and disease. Here we demonstrate that loss of the orthologue kdm2aa in zebrafish causes widespread transcriptional disruption and leads to spontaneous melanomas at a high frequency. Fish homozygous for two independent premature stop codon alleles show reduced growth and survival, a strong male sex bias, and homozygous females exhibit a progressive oogenesis defect. kdm2aa mutant fish also develop melanomas from early adulthood onwards which are independent from mutations in braf and other common oncogenes and tumour suppressors as revealed by deep whole exome sequencing. In addition to effects on translation and DNA replication gene expression, high-replicate RNA-seq in morphologically normal individuals demonstrates a stable regulatory response of epigenetic modifiers and the specific de-repression of a group of zinc finger genes residing in constitutive heterochromatin. Together our data reveal a complex role for Kdm2aa in regulating normal mRNA levels and carcinogenesis. These findings establish kdm2aa mutants as the first single gene knockout model of melanoma biology.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Histone Demethylase Kdm2a; Metastatic Melanoma; Gene-expression; Repair Pathway; Danio-rerio; Rna-seq; Cancer; Genome; Progression; Resistance
Language english
Publication Year 2017
HGF-reported in Year 2017
ISSN (print) / ISBN 1553-7390
e-ISSN 1553-7404
Journal PLoS Genetics
Quellenangaben Volume: 13, Issue: 8, Pages: , Article Number: e1006959 Supplement: ,
Publisher Public Library of Science (PLoS)
Publishing Place San Francisco
Reviewing status Peer reviewed
Institute(s) Institute of Functional Epigenetics (IFE)
POF-Topic(s) 30203 - Molecular Targets and Therapies
Research field(s) Helmholtz Diabetes Center
PSP Element(s) G-502800-001
PubMed ID PMC5570503
DOI 10.1371/journal.pgen.1006959
WOS ID WOS:000408763800032
Scopus ID 85028819637
Erfassungsdatum 2017-09-22
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