Isolation of galactosaminoglycan moiety (CO-N) from protein-bound polysaccharide of Cordyceps ophioglossoides and its effects against murine tumors.
A galactosaminoglycan moiety was obtained from an antitumor polysaccharide fraction (SN-C) isolated from Cordyceps ophioglossoides culture. SN-C was subjected to sonication, then a protein-bound galactosaminoglycan (CO-N) was isolated specifically by precipitation with 10% ammonium hydroxide. When given intraperitoneally to mice, CO-N inhibited the proliferation of sarcoma 180 cells inoculated into the peritoneal cavity and exhibited a marked life-prolonging effect against ascitic tumors such as Ehrlich carcinoma and IMC carcinoma. CO-N also showed an inhibitory effect against solid Ehrlich carcinoma when given intratumorally and significantly inhibited the growth of a syngeneic solid tumor (MM46 mammary carcinoma) upon intravenous administration at a low dose. CO-N showed a cytocidal effect against cultured cells of IMC and P388D1 in vitro. Flow cytometric analysis demonstrated that fluorescein isothiocyanate-CO-N binds to the surface of Ehrlich cells.
Ohmori
T
T
Tamura
K
K
Fukui
K
K
Kawanishi
G
G
Mitsuyama
M
M
Nomoto
K
K
Miyazaki
T
T
D000818:Animals; D000903:Antibiotics, Antineoplastic / Q000302:isolation & purification* / Q000494:pharmacology; D006999:Hypocreales / Q000378:metabolism*; D008297:Male; D051379:Mice; D008809:Mice, Inbred C3H; D008813:Mice, Inbred ICR; D009374:Neoplasms, Experimental / Q000188:drug therapy*; D011134:Polysaccharides / Q000032:analysis* / Q000302:isolation & purification* / Q000494:pharmacology
D000903:Antibiotics, Antineoplastic; D011134:Polysaccharides; C007815:galactosaminoglycan