Horizon 1 1 17 ACLN : Articles dans des revues avec comité de lecture non répertoriées par l'AERES Corallistin A, a second example of a free porphyrin from a living organism : isolation from the demosponge Corallistes sp. of the coral see and inhibition of abnormal cells Helvetica Chimica Acta 1451-1454 INVERTEBRE AQUATIQUE SUBSTANCE NATURELLE EXTRACTION ACTIVITE BIOLOGIQUE CORALLISTINE PORPHYRINE ACTIVITE ANTITUMORALE MER DE CORAIL 1989 fdi:31179 ENG Helvetica Chimica Acta 10.1002/hlca.19890720704 https://www.documentation.ird.fr/hor/fdi:31179 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_5/b_fdi_23-25/31179.pdf 72 Horizon (IRD) It is shown that the demosponge #Corallistes$ sp. (#Tetractinomorpha$, #Lithistida$, #Corallistidae$) collected in the Coral Sea, contains corallistin A, the second example, of a free porphyrin from a living organism. The compound proved to be active against the Kb cell line. In contrast with the geoporphyrins which do not bear any O-atom corallistin A carries two carboxylic groups. (Résumé d'auteur) 035SUBSAN