Both ABL1 and ABL2 are associated with leukemias as components of oncogenic translocations (see human disease model report 'chronic myeloid leukemia, BCR-ABL1 fusions' FBhh0001049; MIM:189980; MIM:164690). This report describes characterization of the role of Abelson kinase in a different oncogenic context: epithelial cells. The Drosophila ortholog of ABL1 and ABL2, Dmel\Abl, has been used; classical amorphic and hypomorphic alleles, RNAi-targeting constructs, and alleles caused by insertional mutagenesis have been generated for Dmel\Abl.
The human genes Hsap\ABL1 and Hsap\ABL2 have been introduced into flies, but have not been characterized in the context of this disease model.
Overexpression of Dmel\Abl in the wing disc causes loss of epithelial apical/basal cell polarity and secretion of matrix metalloproteinases, resulting in cell invasion and overproliferation. Increased cell proliferation associated with ABL can be separated from its cell invasion function by distinct downstream effectors. Evidence of an ABL/SRC signal amplification loop in epithelial cell invasion has been described and the clinical relevance of this observation noted.
[updated Jul. 2019 by FlyBase; FBrf0222196
Both ABL1 and ABL2 are associated with leukemias as members of oncogenic translocations. [from MIM:189980, MIM:164690; 2019.07.06]
ABL1 and ABL2 encode members of the Abelson family of nonreceptor tyrosine protein kinases. The genes play overlapping roles in key processes linked to cell growth, morphogenesis and survival such as cytoskeleton remodeling in response to extracellular stimuli, cell motility and adhesion, receptor endocytosis, autophagy, DNA damage response and apoptosis. They coordinate actin remodeling through tyrosine phosphorylation of proteins controlling cytoskeleton dynamics. [Gene Cards, ABL1, ABL2; 2019.07.05]
Many to one: 2 human to 1 Drosophila.
Many to one: 2 human to 1 Drosophila.
Moderate-scoring ortholog of human ABL1 and ABL2 (1 Drosophila to 2 human). Dmel\Abl shares 33-38% identity and 42-48% similarity with the human genes.