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Lookup NU author(s): Professor Penny Lovat,
Professor Archibald Malcolm,
Professor Andrew Pearson,
Dr Chris RedfernORCiD
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To date, the clinical success of 13-cis or all-trans retinoic acid in the treatment of neuroblastoma has been disappointing. In vivo, 13-cis will isomerise to both all-trans and 9-cis retinoic acid, believed to be the main biologically-active isomers. In vitro studies with an N-type neuroblastoma cell line, SH SY 5Y, show that 9-cis is better than other isomers at both inducing morphological differentiation and inhibiting proliferation. RAR-β, a gene which may mediate retinoic acid responsiveness and be of prognostic significance, is also more-effectively induced by 9-cis retinoic acid. 9-cis and all-trans retinoic acid do not have synergistic effects on SH SY 5Y cell proliferation and gene expression. A retinoid X receptor (RXR)-specific analogue of 9-cis retinoic acid had similar effects on gene expression to 9-cis retinoic acid alone. In view of these results, 9-cis retinoic acid or stable analogues of this retinoid may have potential for the treatment of neuroblastoma.
Author(s): Lovat, P.E., Irving, H., Malcolm, A.J., Pearson, A.D.J., Redfern, C.P.F.
Publication type: Article
Publication status: Published
Journal: Journal of Neuro-Oncology
Print publication date: 01/01/1997
ISSN (print): 0167-594X
ISSN (electronic): 1573-7373
PubMed id: 9049833
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