Publication Date:
1995-07-07
Description:
Cytokines and growth factors induce tyrosine phosphorylation of signal transducers and activators of transcription (STATs) that directly activate gene expression. Cells stably transformed by the Src oncogene tyrosine kinase were examined for STAT protein activation. Assays of electrophoretic mobility, DNA-binding specificity, and antigenicity indicated that Stat3 or a closely related STAT family member was constitutively activated by the Src oncoprotein. Induction of this DNA-binding activity was accompanied by tyrosine phosphorylation of Stat3 and correlated with Src transformation. These findings demonstrate that Src can activate STAT signaling pathways and raise the possibility that Stat3 contributes to oncogenesis by Src.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, C L -- Meyer, D J -- Campbell, G S -- Larner, A C -- Carter-Su, C -- Schwartz, J -- Jove, R -- CA55652/CA/NCI NIH HHS/ -- DK34171/DK/NIDDK NIH HHS/ -- R01 DK034171/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 1995 Jul 7;269(5220):81-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor 48109, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7541555" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Base Sequence
;
Cell Line, Transformed
;
*Cell Transformation, Neoplastic
;
DNA/*metabolism
;
DNA-Binding Proteins/*metabolism
;
Growth Inhibitors/pharmacology
;
Interferon-gamma/pharmacology
;
*Interleukin-6
;
Leukemia Inhibitory Factor
;
Lymphokines/pharmacology
;
Mice
;
Molecular Sequence Data
;
Oncogene Protein pp60(v-src)/*physiology
;
Phosphorylation
;
Phosphotyrosine
;
STAT3 Transcription Factor
;
*Signal Transduction
;
Trans-Activators/*metabolism
;
Tyrosine/analogs & derivatives/metabolism
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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