From Asterias amurensi

The major sterols of Echinodermata are C27-sterols. Cholesterol is the principal sterol in echinoids (70-80%), ophiuroids, and crinoids. 5a-Cholest-7-en-3i8-ol is the major sterol in asteroids and sea cucumbers. A C26-sterol, 24-norcholesta-5,22-dien-3 8-01 (83) is also a common sterol in Echinodermata the content is especially high (6-10%) in ophiuroids and crinoids [79]. Asterosterol (70), a A -C26-sterol, is common in asteroids and sea cucumbers [80], and amuresterol (71) was isolated from Asterias amurensis [81]. 

The same methods were utilized to determine the structures of two oligoglycosides (942) and (943) from Astropecten latespinosus after they had been desulfated by solvolysis 630), thornasteroside A (920) and a new saponin, versicoside A (944), from Asterias amurensis versicolor 631), and four new compounds, the luidiaglycosides A-D (945-948), from Luidia maculata 632, 633). Luidiaglycosides C (947) and D (948) contain the aglycones marthasterone and dihydromarthasterone which... 

Kobayashi, M. and Mitsuhashi, H. (1974) Marine sterols. IV. Structure and synthesis of amuresterol, a new marine sterol with unprecedented side chain, from Asterias amurensis Liitken. Tetrahedron, 30, 2147-2150. 

Korotchenko and coworkers detected PG-like compounds in five starfish from the Sea of Japan Asterias amurensis, Distolasterias nippon, Evasterias r. tabulata, Lysastrosoma anthosticta, and Patina pectinifera [189]. Perry and Epel showed that Pisaster ochraceous homogenates were able to oxidize AA [190]. Early studies on oocyte maturation in starfish suggested that HETE s might play a role [195]. Two compounds, 12- and 15-HETE, were able to induce oocyte maturation. Subsequent work showed that the activity was actually due to 8-HETE (33), which was a minor contaminant of both HETE preparations [196]. The 8R enantiomer of this compound (33) and 8R-HEPE (32) were also isolated from the aqueous extracts of Patiria miniata from the Gulf of California [197],... 

Callyspongins A-B (617-618) are sulfated compounds from a Japanese sample of Callyspongia truncata. They inhibit fertilisation of starfish (Asterias amurensis) gametes [493]. 

N. K. Kochetkov, G. P. Smirnova, and I. S. Glukhoded, Gangliosides with sialic acid bound to A-acetylgalactosamine from hepatopancreas of the starfish, Evasterias retifera and Asterias amurensis, Biochim. Biophys. Acta, 712 (1982) 650-658. 

Riccio, R., Iorizzi, M., Minale, L., Oshima, Y., and Yasumoto, T., Starfish saponins. part 34. Novel steroidal glycoside sulphates from the starfish Asterias amurensis, J. Chem. Soc. Perkin Trans., 1, 1337, 1988. 

Ishii T, Okino T, Mino Y. A ceramide and cerebroside from the starfish asterias amurensis Liitken and their plant-growth promotion activities. J. Nat. Prod. 2006 69 1080-1082. 

The biological activities of the steroidal saponins from the Japanese starfish Acanthaster planci, Luidia maculata, and Asterias amurensis versicolor have been examined by Fusetani et al. (643) who investigated the effects of 17 saponines on fertilized sea urchin and starfish eggs. These compounds inhibited sea urchin embryos from further development in the morula stage, while starfish eggs were much more resistant. Some of these asterosaponins showed hemolytic effects. The authors discussed the relationship between the structure and the biological activity. 

Biologically Active Glycosides from Asteroidea, V. Steroid Oligoglycosides from the Starfish Asterias amurensis (cf.). versicolor Sladen, 1. Structural Elucidation of a New Oligoglycoside Sulfate. Liebigs Ann. Chem. 1983, 2079. 

Okano, K., Ohkawa, N., and Ikegami, S. (1985) Structure of ovarian asterosaponin-4, an inhibitor of spontaneous oocyte maturation from the starfish Asterias amurensis. Agric. Biol. Chem., 49, 2823-2826. 

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