Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 427, Issue 1, Pages 165-170Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2012.09.035
Keywords
Prostate cancer; TGF beta; Apoptosis; P38 MAPK; JNK; Akt
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Funding
- University of Georgia Research Foundation
- Wilson Pharmacy Foundation
- UGA College of Pharmacy
- National Institutes of Health [R01HL103952]
- American Heart Association Scientist Development Grant [0830326N]
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Recent findings indicate that advanced stage cancers shun the tumor suppressive actions of TGF beta and inexplicably utilize the cytokine as a tumor promoter. We investigated the effect of TGF beta 1 on the survival and proliferation of invasive prostate (PC3) and bladder (T24) cancer cells. Our study indicated that TGF beta 1 decreased cell viability and induced apoptosis in invasive human PC3 and 124 cells via activation of p38 MAPK-JNK-Caspase9/8/3 pathway. Surprisingly, no change in the phosphorylation of pro-survival Akt kinase was observed. We postulate that TGF beta 1 pathway may be utilized for specifically targeting urological cancers without inflicting side effects on normal tissues. (C) 2012 Elsevier Inc. All rights reserved.
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