STAT5BN642H is a driver mutation for T cell neoplasia.

Autor:	Pham HTT; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria.; Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria., Maurer B; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria.; Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria., Prchal-Murphy M; Institute of Pharmacology and Toxicology, University of Veterinary Medicine Vienna, Vienna, Austria., Grausenburger R; Institute of Pharmacology and Toxicology, University of Veterinary Medicine Vienna, Vienna, Austria., Grundschober E; Institute of Pharmacology and Toxicology, University of Veterinary Medicine Vienna, Vienna, Austria., Javaheri T; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria.; Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria., Nivarthi H; CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria., Boersma A; Institute of Laboratory Animal Science, and., Kolbe T; Biomodels Austria (Biat), University of Veterinary Medicine Vienna, Vienna, Austria.; IFA-Tulln, University of Natural Resources and Life Sciences, Tulln, Austria., Elabd M; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria., Halbritter F; CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria., Pencik J; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria., Kazemi Z; Medical University of Vienna, Vienna, Austria.; Center of Physiology and Pharmacology, Vienna, Austria., Grebien F; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria., Hengstschläger M; Center of Pathobiochemistry and Genetics, Institute of Medical Genetics, Medical University of Vienna, Vienna, Austria., Kenner L; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria.; Clinical Institute of Pathology, Medical University of Vienna, Vienna, Austria.; Unit of Pathology of Laboratory Animals, University of Veterinary Medicine Vienna, Vienna, Austria., Kubicek S; CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria., Farlik M; CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria., Bock C; CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria.; Medical University of Vienna, Vienna, Austria.; Max Planck Institute for Informatics, Saarbrücken, Germany., Valent P; Department of Internal Medicine I, Division of Hematology and Hemostaseology, and.; Ludwig Boltzmann-Cluster Oncology, Medical University of Vienna, Vienna, Austria., Müller M; Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria., Rülicke T; Institute of Laboratory Animal Science, and., Sexl V; Institute of Pharmacology and Toxicology, University of Veterinary Medicine Vienna, Vienna, Austria., Moriggl R; Ludwig Boltzmann Institute for Cancer Research, Vienna, Austria.; Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria.; Medical University of Vienna, Vienna, Austria.
Jazyk:	angličtina
Zdroj:	The Journal of clinical investigation [J Clin Invest] 2018 Jan 02; Vol. 128 (1), pp. 387-401. Date of Electronic Publication: 2017 Dec 04.
DOI:	10.1172/JCI94509
Abstrakt:	STAT5B is often mutated in hematopoietic malignancies. The most frequent STAT5B mutation, Asp642His (N642H), has been found in over 90 leukemia and lymphoma patients. Here, we used the Vav1 promoter to generate transgenic mouse models that expressed either human STAT5B or STAT5BN642H in the hematopoietic compartment. While STAT5B-expressing mice lacked a hematopoietic phenotype, the STAT5BN642H-expressing mice rapidly developed T cell neoplasms. Neoplasia manifested as transplantable CD8+ lymphoma or leukemia, indicating that the STAT5BN642H mutation drives cancer development. Persistent and enhanced levels of STAT5BN642H tyrosine phosphorylation in transformed CD8+ T cells led to profound changes in gene expression that were accompanied by alterations in DNA methylation at potential histone methyltransferase EZH2-binding sites. Aurora kinase genes were enriched in STAT5BN642H-expressing CD8+ T cells, which were exquisitely sensitive to JAK and Aurora kinase inhibitors. Together, our data suggest that JAK and Aurora kinase inhibitors should be further explored as potential therapeutics for lymphoma and leukemia patients with the STAT5BN642H mutation who respond poorly to conventional chemotherapy.
Databáze:	MEDLINE
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