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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Proliferation-dependent induction of apoptosis by the retinoid CD437 in p53-mutated keratinocytes.

6-[3-(1-adamantyl)-4-hydroxyphenyl]-2-Naphthalene carboxylic acid (CD437) is a synthetic retinoid with strong apoptogenic properties in various neoplastic cell lines. CD437 was shown to induce apoptosis in malignant human keratinocytes but not in normal keratinocytes. We demonstrate that CD437 is also capable of inducing apoptosis in the non-tumorigenic keratinocyte cell line HaCaT that carries UV-type mutations on both alleles of the p53 gene. The concentration-dependent induction of apoptosis was restricted to proliferative HaCaT cells, whereas no effect was seen in differentiating post-mitotic cells. The apoptotic elimination of the proliferative cells was accompanied by rapid upregulation of c- jun, downregulation of c- fos, and activation of the AP-1 complex, which normally only occur during the differentiation process of post-mitotic keratinocytes. Pharmacological impairment of this precocious AP-1 activation reduced the rate of apoptosis induced by CD437. The potent, selective, and p53-independent apoptosis-inducing efficacy of CD437 is of utmost importance for the prophylaxis and treatment of skin cancer caused by mutational inactivation of the p53 gene.[1]

References

  1. Proliferation-dependent induction of apoptosis by the retinoid CD437 in p53-mutated keratinocytes. Wanner, R., Henseleit-Walter, U., Wittig, B., Kolde, G. J. Mol. Med. (2002) [Pubmed]
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