» Articles » PMID: 11847100

C-Abl is an Effector of Src for Growth Factor-induced C-myc Expression and DNA Synthesis

Overview
Journal EMBO J
Date 2002 Feb 16
PMID 11847100
Citations 52
Authors
Affiliations
Soon will be listed here.
Abstract

The mechanism by which the ubiquitously expressed Src family kinases regulate mitogenesis is not well understood. Here we report that cytoplasmic tyrosine kinase c-Abl is an important effector of c-Src for PDGF- and serum-induced DNA synthesis. Inactivation of cytoplasmic c-Abl by the kinase-inactive Abl-PP-K(-) (AblP242E/P249E/K290M) or by microinjection of Abl neutralizing antibodies inhibited mitogenesis. The kinase-inactive SrcK295M induced a G(1) block that was overcome by the constitutively active Abl-PP (AblP242E/P249E). Conversely, the inhibitory effect of Abl-PP-K(-) was not compensated by Src. c-Src-induced c-Abl activation involves phosphorylation of Y245 and Y412, two residues required for c-Abl mitogenic function. Finally, we found that p53 inactivation and c-myc expression, two cell cycle events regulated by Src during mitogenesis, also implied c-Abl: c-Abl function was dispensable in cells deficient in active p53 and inhibition of c-Abl reduced mitogen-induced c-myc expression. These data identify a novel function of cytoplasmic c-Abl in the signalling pathways regulating growth factor-induced c-myc expression and we propose the existence of a tyrosine kinase signalling cascade (PDGFR/c-Src/c-Abl) important for mitogenesis.

Citing Articles

ABL1 and ABL2 promote medulloblastoma leptomeningeal dissemination.

Jones J, Zhang H, Lyne A, Cavalli F, Hassen W, Stevenson K Neurooncol Adv. 2023; 5(1):vdad095.

PMID: 37781087 PMC: 10540884. DOI: 10.1093/noajnl/vdad095.


Oncogenic Signalling of PEAK2 Pseudokinase in Colon Cancer.

Lecointre C, Fourgous E, Montarras I, Kerneur C, Simon V, Boublik Y Cancers (Basel). 2022; 14(12).

PMID: 35740644 PMC: 9221080. DOI: 10.3390/cancers14122981.


Combating acquired resistance to MAPK inhibitors in melanoma by targeting Abl1/2-mediated reactivation of MEK/ERK/MYC signaling.

Tripathi R, Liu Z, Jain A, Lyon A, Meeks C, Richards D Nat Commun. 2020; 11(1):5463.

PMID: 33122628 PMC: 7596241. DOI: 10.1038/s41467-020-19075-3.


α-Synucleinopathy associated c-Abl activation causes p53-dependent autophagy impairment.

Karim M, Liao E, Kim J, Meints J, Martinez H, Pletnikova O Mol Neurodegener. 2020; 15(1):27.

PMID: 32299471 PMC: 7164361. DOI: 10.1186/s13024-020-00364-w.


CDCP1 overexpression drives prostate cancer progression and can be targeted in vivo.

Alajati A, DAmbrosio M, Troiani M, Mosole S, Pellegrini L, Chen J J Clin Invest. 2020; 130(5):2435-2450.

PMID: 32250342 PMC: 7190998. DOI: 10.1172/JCI131133.


References
1.
Pepperkok R, Ansorge W, Courtneidge S . The Src family tyrosine kinases are required for platelet-derived growth factor-mediated signal transduction in NIH 3T3 cells. Proc Natl Acad Sci U S A. 1993; 90(16):7696-700. PMC: 47209. DOI: 10.1073/pnas.90.16.7696. View

2.
Endo K, Takeshita T, Kasai H, Sasaki Y, Tanaka N, Asao H . STAM2, a new member of the STAM family, binding to the Janus kinases. FEBS Lett. 2000; 477(1-2):55-61. DOI: 10.1016/s0014-5793(00)01760-9. View

3.
Sawyers C, McLaughlin J, Goga A, Havlik M, Witte O . The nuclear tyrosine kinase c-Abl negatively regulates cell growth. Cell. 1994; 77(1):121-31. DOI: 10.1016/0092-8674(94)90240-2. View

4.
Wang X, Sato R, Brown M, Hua X, Goldstein J . SREBP-1, a membrane-bound transcription factor released by sterol-regulated proteolysis. Cell. 1994; 77(1):53-62. DOI: 10.1016/0092-8674(94)90234-8. View

5.
Treisman R . Ternary complex factors: growth factor regulated transcriptional activators. Curr Opin Genet Dev. 1994; 4(1):96-101. DOI: 10.1016/0959-437x(94)90097-3. View