Document Detail


Design and synthesis of novel derivatives of all-trans retinoic acid demonstrate the combined importance of acid moiety and conjugated double bonds in its binding to PML-RAR-alpha oncogene in acute promyelocytic leukemia.
MedLine Citation:
PMID:  20536349     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The binding of all-trans retinoic acid (ATRA) to retinoid receptor-alpha (RAR-alpha) relieves transcriptional repression induced by the promyelocytic leukemia-retinoic acid receptor (PML-RAR) oncoprotein. The ATRA molecule contains a cyclohexenyl ring, a polyene chain containing conjugated double alkene bonds, and a terminal carboxyl group. To determine the contributions of these structural components of ATRA to its clinical efficacy, we synthesized three novel retinoids. These consisted of either a modified conjugated alkene backbone with an intact acid moiety (13a) or a modified conjugated alkene backbone and conversion of the acid group to either an ester (13b) or an aromatic amide (13c). Reporter assays demonstrated that compound 13a successfully relieved transcriptional repression by RAR-alpha, while 13b and 13c could not, demonstrating the critical role of the acid moiety in this binding. However, only ATRA was able to significantly inhibit the proliferation of APL cells while 13a, 13b, or 13c was not. Furthermore, only 13a led to partial non-significant differentiation of NB4 cells, demonstrating the importance of C9-C10 double bonds in differentiation induced CD11 expression. Our results demonstrate that both the acid moiety and conjugated double bonds present in the ATRA molecule are important for its biological activity in APL and have important implications for the design of future novel retinoids.
Authors:
Carolina Schinke; Swati Goel; Tushar D Bhagat; Li Zhou; Yongkai Mo; Robert Gallagher; George W Kabalka; Leonidas C Platanias; Amit Verma; Bhaskar Das
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Leukemia & lymphoma     Volume:  51     ISSN:  1029-2403     ISO Abbreviation:  Leuk. Lymphoma     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-06-11     Completed Date:  2010-09-27     Revised Date:  2011-08-01    
Medline Journal Info:
Nlm Unique ID:  9007422     Medline TA:  Leuk Lymphoma     Country:  England    
Other Details:
Languages:  eng     Pagination:  1108-14     Citation Subset:  IM    
Affiliation:
Albert Einstein College of Medicine, Bronx, NY, USA.
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MeSH Terms
Descriptor/Qualifier:
Antigens, CD11 / analysis
Apoptosis / drug effects
Cell Differentiation / drug effects
Cell Line, Tumor
Cell Proliferation / drug effects*
Drug Design
Flow Cytometry
Gene Expression Regulation / drug effects
Humans
Infant
Leukemia, Promyelocytic, Acute / genetics,  metabolism,  pathology
Luciferases / genetics,  metabolism
Molecular Structure
Oncogene Proteins, Fusion / genetics,  metabolism*
Recombinant Fusion Proteins / genetics,  metabolism
Response Elements / genetics
Transfection
Tretinoin / chemical synthesis,  metabolism,  pharmacology*
Grant Support
ID/Acronym/Agency:
1R01HL082946-01/HL/NHLBI NIH HHS; CA121192/CA/NCI NIH HHS; R01 CA121192-03/CA/NCI NIH HHS; R01 CA121192-04/CA/NCI NIH HHS; R01 HL082946-04/HL/NHLBI NIH HHS; T32 CA009173/CA/NCI NIH HHS
Chemical
Reg. No./Substance:
0/Antigens, CD11; 0/Oncogene Proteins, Fusion; 0/Recombinant Fusion Proteins; 0/promyelocytic leukemia-retinoic acid receptor alpha fusion oncoprotein; 302-79-4/Tretinoin; EC 1.13.12.-/Luciferases
Comments/Corrections

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