Journal article
Abl kinases can function as suppressors of tumor progression and metastasis
Frontiers in oncology, Vol.13, 1241056
09/01/2023
DOI: 10.3389/fonc.2023.1241056
PMCID: PMC10514900
PMID: 37746268
Abstract
Introduction Abl family kinases function as proto-oncogenes in various leukemias, and pro-tumor functions have been discovered for Abl kinases in many solid tumors as well. However, a growing body of evidence indicates that Abl kinases can function to suppress tumor cell proliferation and motility and tumor growth in vivo in some settings. Methods To investigate the role of Abl kinases in tumor progression, we used RNAi to generate Abl-deficient cells in a model of androgen receptor-indifferent, metastatic prostate cancer. The effect of Abl kinase depletion on tumor progression and metastasis was studied in an in vivo orthotopic model, and tumor cell motility, 3D growth, and signaling was studied in vitro. Abl family kinase expression resulted in a highly aggressive, metastatic phenotype in vivo that was associated with AKT pathway activation, increased growth on 3D collagen matrix, and enhanced cell motility in vitro. Inhibiting AKT pathway signaling abolished the increased 3D growth of Abl-deficient cells, while treatment with the Abl kinase inhibitor, imatinib, promoted 3D growth of multiple additional tumor cell types. Moreover, Abl kinase inhibition also promoted soft-agar colony formation by pre-malignant fibroblasts. Conclusions Collectively, our data reveal that Abl family kinases can function to suppress malignant cell phenotypes in vitro, and tumor progression and metastasis in vivo.
Details
- Title: Subtitle
- Abl kinases can function as suppressors of tumor progression and metastasis
- Creators
- Melissa A. Marchal - Department of Biology, College of Liberal Arts and Sciences, University of Iowa, Iowa City, IA, United StatesDevon L. Moose - University of IowaAfshin Varzavand - University of IowaNicole E. Jordan - Department of Biology, College of Liberal Arts and Sciences, University of Iowa, Iowa City, IA, United StatesDestiney Taylor - Department of Biology, College of Liberal Arts and Sciences, University of Iowa, Iowa City, IA, United StatesMunir R. Tanas - University of IowaJames A. Brown - University of IowaMichael D. Henry - University of IowaChristopher S. Stipp - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Frontiers in oncology, Vol.13, 1241056
- DOI
- 10.3389/fonc.2023.1241056
- PMID
- 37746268
- PMCID
- PMC10514900
- NLM abbreviation
- Front Oncol
- eISSN
- 2234-943X
- Publisher
- Frontiers Media S.A
- Language
- English
- Date published
- 09/01/2023
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Dermatology; Molecular Physiology and Biophysics; Pathology; Biology; Urology
- Record Identifier
- 9984463060302771
Metrics
73 Record Views