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 D'Ambrosio, Michèle Guerriero, A. /Debitus, Cécile /Ribes, Olivier Richer de Forges, Bertrand Pietra, F. INVERTEBRE AQUATIQUE SUBSTANCE NATURELLE EXTRACTION ACTIVITE BIOLOGIQUE CORALLISTINE PORPHYRINE ACTIVITE ANTITUMORALE 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) 1989 text https://www.documentation.ird.fr/hor/fdi:31179 fdi:31179 D'Ambrosio Michèle, Guerriero A. /Debitus Cécile, Ribes Olivier, Richer de Forges Bertrand, Pietra F.. 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. 1989, 72, 1451-1454 EN MER DE CORAIL