Effect of a new derivative of retinoic acid on proliferation and differentiation in human neuroblastoma cells

被引:0
作者
Bartolini, G
Orlandi, M
Ammar, K
Magrini, E
Ferreri, AM
Rocchi, P
机构
[1] Dipartimento Patol Sperimentale, Sez Cancerol, I-40126 Bologna, Italy
[2] Univ Bologna, Dipartimento Biol Evoluz & Sperimentale, I-40126 Bologna, Italy
关键词
retinoids; neuroblastoma; cell differentiation;
D O I
暂无
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Neuroblastoma, a tumor originating from the sympathetic nervous system, is the most common extracranial malignant solid tumor of childhood. Human neuroblastoma cells may differentiate in vitro under treatment with a variety of biological agents and drugs. Among these, retinoic acid (RA) is quite potent and its effectiveness as a therapeutic agent is now being evaluated in clinical trials. As its pleiotropic biological activities may produce side-effects limiting clinical use, it is important to find new compounds that present the same effectiveness together with few side-effects. In this study we have explored the action of IIF, (pat. WIPO WO 00117143) a new derivative of RA, as a differentiation inducer in the human neuroblastoma cell line TS12. In the same cell line, we have also compared the effect of IIF with that of all trans RA (ATRA) and of 9 cis RA (9cRA), with respect to morphological and biochemical differentiation and growth inhibition. Treatment with IIF resulted in a strong inhibition of proliferation and in a marked induction of neuronal differentiation as revealed by neurite extension, increase of actylcholinesterase (AchE) specific activity and tyrosine hydroxylase (TH) expression. The results demonstrate the effectiveness of this new retinoid as a differentiation inducer on neuroblastoma cells TS12. Furthermore, the differentiation-promoter and antimitotic activities of IIF were on the whole more pronounced than those of ATRA and 9cRA. Therefore our study suggests the evaluation of the new retinoid IIF as a therapeutic approach in the treatment of neuroblastoma.
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页码:1495 / 1499
页数:5
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