Detailed Information on Publication Record
2020
Elucidation of protein interactions necessary for the maintenance of the BCR-ABL signaling complex
GREGOR, Tomáš, Michaela BOSÁKOVÁ, Alexandru NITĂ, Sara POOVAKULATHU ABRAHAM, Bohumil FAFÍLEK et. al.Basic information
Original name
Elucidation of protein interactions necessary for the maintenance of the BCR-ABL signaling complex
Authors
GREGOR, Tomáš (203 Czech Republic, belonging to the institution), Michaela BOSÁKOVÁ (203 Czech Republic, belonging to the institution), Alexandru NITĂ (642 Romania, belonging to the institution), Sara POOVAKULATHU ABRAHAM (356 India, belonging to the institution), Bohumil FAFÍLEK (203 Czech Republic, belonging to the institution), Nicole ČERNOHORSKÁ (203 Czech Republic, belonging to the institution), Jan RYNEŠ (203 Czech Republic, belonging to the institution), Silvie TRANTÍRKOVÁ (203 Czech Republic, belonging to the institution), Daniela ŽÁČKOVÁ (203 Czech Republic, belonging to the institution), Jiří MAYER (203 Czech Republic, belonging to the institution), Lukáš TRANTÍREK (203 Czech Republic, belonging to the institution) and Pavel KREJČÍ (203 Czech Republic, guarantor, belonging to the institution)
Edition
Cellular and molecular life sciences, BASEL, SPRINGER BASEL AG, 2020, 1420-682X
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10608 Biochemistry and molecular biology
Country of publisher
Switzerland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 9.261
RIV identification code
RIV/00216224:14110/20:00116512
Organization unit
Faculty of Medicine
UT WoS
000566036300001
Keywords in English
BCR-ABL; Chronic myeloid leukemia; Signaling; Protein complex
Tags
International impact, Reviewed
Změněno: 4/3/2021 12:28, Mgr. Tereza Miškechová
Abstract
V originále
Many patients with chronic myeloid leukemia in deep remission experience return of clinical disease after withdrawal of tyrosine kinase inhibitors (TKIs). This suggests signaling of inactive BCR-ABL, which allows the survival of cancer cells, and relapse. We show that TKI treatment inhibits catalytic activity of BCR-ABL, but does not dissolve BCR-ABL core signaling complex, consisting of CRKL, SHC1, GRB2, SOS1, cCBL, p85a-PI3K, STS1 and SHIP2. Peptide microarray and co-immunoprecipitation results demonstrate that CRKL binds to proline-rich regions located in C-terminal, intrinsically disordered region of BCR-ABL, that SHC1 requires pleckstrin homology, src homology and tyrosine kinase domains of BCR-ABL for binding, and that BCR-ABL sequence motif located in disordered region around phosphorylated tyrosine 177 mediates binding of three core complex members, i.e., GRB2, SOS1, and cCBL. Further, SHIP2 binds to the src homology and tyrosine kinase domains of BCR-ABL and its inositol phosphatase activity contributes to BCR-ABL-mediated phosphorylation of SHC1. Together, this study characterizes protein-protein interactions within the BCR-ABL core complex and determines the contribution of particular BCR-ABL domains to downstream signaling. Understanding the structure and dynamics of BCR-ABL interactome is critical for the development of drugs targeting integrity of the BCR-ABL core complex.
Links
LM2018128, research and development project |
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MUNI/A/0951/2019, interní kód MU |
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NV15-34405A, research and development project |
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