LUI, Vivian Way Y., Noah D. PEYSER, Patrick KS NG, Jozef HRITZ, Yan ZENG, Yiling LU, Hua LI, Lins WANG, Breean R. GILBERT, Ignacio J. GENERAL, Ivet BAHAR, Zhenlin JU, Zhenghe WANG, Kelsey P. PENDLETON, Xiao XIAO, Yu DU, John K. VRIES, Peter S. HAMMERMAN, Levi A. GARRAWAY, Gordon B. MILLS, Dean Kim JOHNSON and Jennifer R. GRANDIS. Frequent mutation of receptor protein tyrosine phosphatases provides a mechanism for STAT3 hyperactivation in head and neck cancer. Proceedings of the National Academy of Sciences of the United States of America. WASHINGTON: NATL ACAD SCIENCES, 2014, vol. 111, No 3, p. 1114-1119. ISSN 0027-8424. Available from: https://dx.doi.org/10.1073/pnas.1319551111.
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Basic information
Original name Frequent mutation of receptor protein tyrosine phosphatases provides a mechanism for STAT3 hyperactivation in head and neck cancer
Authors LUI, Vivian Way Y. (840 United States of America), Noah D. PEYSER (840 United States of America), Patrick KS NG (840 United States of America), Jozef HRITZ (703 Slovakia, guarantor, belonging to the institution), Yan ZENG (840 United States of America), Yiling LU (840 United States of America), Hua LI (840 United States of America), Lins WANG (840 United States of America), Breean R. GILBERT (840 United States of America), Ignacio J. GENERAL (840 United States of America), Ivet BAHAR (840 United States of America), Zhenlin JU (840 United States of America), Zhenghe WANG (840 United States of America), Kelsey P. PENDLETON (840 United States of America), Xiao XIAO (840 United States of America), Yu DU (840 United States of America), John K. VRIES (840 United States of America), Peter S. HAMMERMAN (840 United States of America), Levi A. GARRAWAY (840 United States of America), Gordon B. MILLS (840 United States of America), Dean Kim JOHNSON (840 United States of America) and Jennifer R. GRANDIS (840 United States of America).
Edition Proceedings of the National Academy of Sciences of the United States of America, WASHINGTON, NATL ACAD SCIENCES, 2014, 0027-8424.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30000 3. Medical and Health Sciences
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 9.674
RIV identification code RIV/00216224:14740/14:00075085
Organization unit Central European Institute of Technology
Doi http://dx.doi.org/10.1073/pnas.1319551111
UT WoS 000329928400059
Keywords in English STAT3 activation; driver mutations; phosphatase mutations
Tags kontrola MP, ok, rivok
Tags International impact, Reviewed
Changed by Changed by: Martina Prášilová, učo 342282. Changed: 17/10/2014 12:49.
Abstract
The underpinnings of STAT3 hyperphosphorylation resulting in enhanced signaling and cancer progression are incompletely understood. Loss-of-function mutations of enzymes that dephosphorylate STAT3, such as receptor protein tyrosine phosphatases, which are encoded by the PTPR gene family, represent a plausible mechanism of STAT3 hyperactivation. We analyzed whole exome sequencing (n = 374) and reverse-phase protein array data (n = 212) from head and neck squamous cell carcinomas (HNSCCs). PTPR mutations are most common and are associated with significantly increased phospho-STAT3 expression in HNSCC tumors. Expression of receptor-like protein tyrosine phosphatase T (PTPRT) mutant proteins induces STAT3 phosphorylation and cell survival, consistent with a "driver" phenotype. Computational modeling reveals functional consequences of PTPRT mutations on phospho-tyrosine-substrate interactions. A high mutation rate (30%) of PTPRs was found in HNSCC and 14 other solid tumors, suggesting that PTPR alterations, in particular PTPRT mutations, may define a subset of patients where STAT3 pathway inhibitors hold particular promise as effective therapeutic agents.
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