PMID- 7576951 OWN - NLM STAT- MEDLINE DCOM- 19951221 LR - 20220330 IS - 0959-8049 (Print) IS - 0959-8049 (Linking) VI - 31A IP - 4 DP - 1995 TI - Gene expression and neuroblastoma cell differentiation in response to retinoic acid: differential effects of 9-cis and all-trans retinoic acid. PG - 486-94 AB - Retinoic acid has considerable potential for the chemoprevention and chemotherapy of cancer. Neuroblastoma cells differentiate in response to retinoic acid in vitro, an observation that has led to clinical trials using either the 13-cis or all-trans isomers of retinoic acid. We review the effects of retinoic acid on neuroblastoma, and the potential involvement of nuclear retinoic acid receptors (RARs) and retinoid X receptors (RXRs). 9-cis retinoic acid is a ligand for RXRs, and we review recent data on the differential effects of 9-cis and all-trans retinoic acid on neuroblastoma differentiation and proliferation in vitro, and possible mechanisms of action via hetero- and homodimers of RARs and RXRs. Although there is uncertainty whether or not 9-cis retinoic acid produces its biological effects primarily via RXR homodimers, in vitro data suggest that this isomer of retinoic acid or stable analogues may have considerable potential for the treatment of resistant, disseminated neuroblastoma. FAU - Redfern, C P AU - Redfern CP AD - Department of Medicine, Medical School, University of Newcastle, U.K. FAU - Lovat, P E AU - Lovat PE FAU - Malcolm, A J AU - Malcolm AJ FAU - Pearson, A D AU - Pearson AD LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - England TA - Eur J Cancer JT - European journal of cancer (Oxford, England : 1990) JID - 9005373 RN - 0 (Antineoplastic Agents) RN - 5688UTC01R (Tretinoin) SB - IM MH - Antineoplastic Agents/*pharmacology MH - Cell Differentiation/*drug effects MH - Cell Division/drug effects MH - Gene Expression Regulation, Neoplastic/*drug effects MH - Humans MH - Neuroblastoma/*genetics/pathology MH - Phenotype MH - Tretinoin/*pharmacology MH - Tumor Cells, Cultured/drug effects RF - 73 EDAT- 1995/01/01 00:00 MHDA- 1995/01/01 00:01 CRDT- 1995/01/01 00:00 PHST- 1995/01/01 00:00 [pubmed] PHST- 1995/01/01 00:01 [medline] PHST- 1995/01/01 00:00 [entrez] AID - 0959-8049(95)00066-R [pii] AID - 10.1016/0959-8049(95)00066-r [doi] PST - ppublish SO - Eur J Cancer. 1995;31A(4):486-94. doi: 10.1016/0959-8049(95)00066-r.