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The root of Trichosanthes kirilowii, which has been used as Chinese folk medicine for more than two thousand years, contains a Gal specific lectin (TKA). In order to elucidate its binding roles, the carbohydrate specificities of TKA were studied by enzyme linked lectinosorbent assay (ELLSA) and by
Normal-phase high-pressure liquid chromatography (HPLC) on amino-bonded silica with elution by aqueous acetonitrile is shown to be an especially suitable complement to reverse-phase HPLC on octadecyl silica for the fractionation of oligosaccharide alditols produced by alkaline borohydride
A combination of reverse phase and normal phase high pressure liquid chromatography has been used to separate the reduced oligosaccharides produced by alkaline borohydride degradation of a blood group A ovarian cyst mucin glycoproteins. Fourteen compounds, ranging in size from a monosaccharide to a
Growing evidence supports the existence of immune-surveillance mechanisms in ovarian tumour patients, including autoantibodies to tumour associated and tumour specific antigens, tumour growth factors. Glycoprotein hormone human chorionic gonadotropin (hCG) and its hormone-specific hCGβ subunit have
A variant of the MM glycoprotein (glycophorin A) was isolated from erythrocyte membranes of two individual donors, a mother (L.G.) and daughter (V.W.). This glycoprotein was found to be a carbohydrate variant in which, for both donors, certain O-glycosidically linked saccharides retained the core
The panel of ISOBM TD-4 Workshop antibodies was tested against a range of carbohydrate antigens consisting of (a) ovarian cyst mucins expressing A, B, H, Le(a), Le(x), Le(b), Le(y) and precursor (nonfucosylated) specificities, (b) ovine submaxillary mucin (OSM, expressing sialyl Tn) and desialylated
Regardless of the A, B, H, Le(a), Le(b), I and i activity, purified water-soluble blood group glycoproteins from human ovarian cyst fluid have a similar overall structure. They are polydisperse macromolecules (Mr 2.0 x 10(5) to several million) of similar composition (75 to 85% carbohydrate, 15 to
A 14 year old female complained of abdominal pain and distention with vomiting. The physical exam showed thyroid enlargement and ascites. The imaging evaluation demonstrated a large ovarian cyst. Laboratory tests depicted hypothyroidism and marked elevation of Carbohydrate antigen 125 (CA-125)
A giant cystic lesion of the left upper abdomen associated with a smaller ovarian cyst in a young female patient is reported. Laboratory data revealed elevated serum levels of carbohydrate antigen 19-9 (CA 19-9), carcino-embryonic antigen (CEA), cancer antigens 50 and 125, and tissue polypeptide
Treatment of a blood group A-active ovarian cyst mucin glycoprotein with alkaline borohydride under conditions expected to cleave O-glycosidic linkages between carbohydrate and peptide releases a sulfated polysaccharide of average molecular weight 20,000. Its peptide and mannose content is less than
Human blood group A, B, H, Ii, Le(a) and Le(b) antigens and their determinants expressed on ovarian cyst glycoproteins have been studied for over five decades. However, little is known about sialyl Le(x) and sialyl Le(a) glycotopes, which play essential roles in normal immunity, inflammation, and
Ovarian cyst fluid has been a valuable source of the mucins (traditionally termed "blood group substances") that were used for the elucidation of the structures of the ABO Lewis blood group determinants, but the identity of the mucin peptide core(s) carrying these carbohydrate specificities is not
Human blood-group A active glycoproteins from ovarian-cyst fluid were subjected to Smith degradation and subsequent beta-elimination. The resulting oligosaccharide-alditols represent the core and backbone domains of the O-linked carbohydrate chains. Nine of these, ranging in size from disaccharides
Studies on the structures and binding properties of the glycoproteins, purified from human ovarian cyst fluids, will aid the understanding of the carbohydrate alterations occurring during the biosynthesis of blood group antigens and neoplasm formation. These glycoproteins can also serve as important
1. Perchloric acid-soluble glycoprotein fractions (PASFs) were separated, in yields of 180-610 mg per 100 ml of cyst fluid, from the cyst fluids of human ovarian cystadenomas (OCAs) in benign and borderline and ovarian clear cell carcinoma (OCC) in malignant, and then identified as glycoproteins