Asterias amurensis

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. 

Ikegami, S., Okano, K., and Muragaki, H., Structure of glycoside B2, a steroidal saponin in the ovary of the starfish Asterias amurensis, Tetrahedron Lett., 1769, 1979. 

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. 

Colwin, A.L. and Colwin, L.H. (1955). Sperm entry and the acrosome filament (Holothuria atra and Asterias amurensis). J. Morphol. 97 543-568. 

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]. 

Estradiol and progesterone have been tentatively identified in extracts of ovaries of the starfish Pisaster ochraceus [93] and the sea urchin Stronglyocentrotus fran-ciscanus [94]. Progesterone was also identified in the ovaries of the starfish Asterias amurensis by Ikegami [95]. The physiological role of progesterone in starfish ovaries is unknown, but probably is connected with oocyte maturation. 

Chemical examination of the North Pacific starfish Asterias amurensis led to the isolation of a new glucocerebroside, asteracerebroside G (11) (Fig. 7),... 

IR, PMR, Mass Spec Asterias amurensis Lutkin (Echinodermata) reference 198, 455... 

SPECTRAL data IR, Mass Spec organism Asterias amurensis hvA)dn (Echinodermata) reference 247... 

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