This paper is only available as a PDF. To read, Please Download here.
Abstract
Platelets washed in the presence of EDTA were treated with neuraminidase and resuspended
in platelet-poor plasma, source of human von Willebrand factor (vWF) [denoted desialo-platelets].
Peanut agglutinin (PNA), soybean agglutinin (SBA) and
agglutinin (RCAI) induced agglutination of desialo-platelets down to concentrations
of 25 μg/ml. Agglutination of platelets by ristocetin/vWF was not affected by removal
of the terminal sialic acid. In subagglutinating concentrations, PNA inhibited the
ristocetin-induced agglutination of desialo-platelets whereas SBA and RCAI were without
effect. When platelets incubated in Ca2+-containing medium were desialylated and resuspended in platelet-poor plasma [denoted
desialo-platelets preincubated with Ca2+], their agglutination with PNA and ristocetin was greatly impaired, SBA and RCAI
reacted normally. These results indicate that PNA and ristocetin/vWF compete in binding
to the same receptor. Since asialoglycoprotein Ib was shown earlier to be the only
glycoprotein on desialo-platelets to bind to a PNA-Sepharose affinity column these
results provide further evidence that glycoprotein Ib is the vWF receptor on human
platelets and that the carbohydrate-rich outer part of glycoprotein Ib is an essential
part of the receptor structure. Lectin-induced platelet agglutination can be mediated
by structures other than glycoprotein Ib but lectins which interact with glycoprotein
Ib induce strong platelet responses including secretion.

Keywords
To read this article in full you will need to make a payment
Purchase one-time access:
Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online accessOne-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to Thrombosis ResearchAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Platelets and their membranes in hemostasis: Physiology and pathophysiology.Ann. Intern. Med. 1981; 94: 108-118
- Platelet membrane proteins: Composition and receptor function.in: Platelets in Biology and Pathology. 2. Elsevier/North Holland Biomedical Press, 1981: 43-76
- An evaluation of membrane glycoproteins in platelet adhesion and aggregation.in: Progress in Hemostasis and Thrombosis. 5. Grune and Stratton, New York1980: 81-109
- Specific roles for platelet surface glycoproteins in platelet function.Nature (London). 1975; 255: 720-722
- Platelet membrane glycoproteins implicated in ristocetin-induced aggregation.J. Clin. Invest. 1976; 57: 112-124
- Human platelet membrane receptor for bovine von Willebrand factor (platelet aggregating factor): An integral membrane glycoprotein.in: Proc. Natl. Acad. Sci, USA. 76. 1979: 1069-1073
- Ristocetin - A new tool in the investigation of platelet aggregation.Thromb. Diath. Haemorrh. 1971; 26: 362-369
- Factor VIII-associated platelet aggregation.Thromb. Haemost. (Stuttg.). 1977; 38: 1054-1072
- Decreased adhesion of platelets to subendothelium in von Willebrand's disease.J. Lab. Clin. Med. 1974; 83: 296-300
- Lectins: Cell-agglutinating and sugar-specific proteins.Science. 1972; 177: 949-959
- Membrane Glycoproteins.Butterworths, London-Boston1976
- Interaction of lectins with human platelets.Biochim. Biophys. Acta. 1979; 586: 574-583
- Isolation of the membrane glycoproteins of human blood platelets by lectin affinity chromatography.Biochim. Biophys. Acta. 1977; 464: 493-508
- Effects on platelet function of removal of platelet sialic acid by neuraminidase.Lab. Invest. 1975; 32: 476-484
- D-galactose-binding lectins induce a differential response on blood platelets.Biochem. Biophys. Res. Commun. 1977; 75: 200-206
- Common activation of aggregation and release reaction of platelets.Thromb. Res. 1977; 11: 391-402
- The effects of various lectins on platelet aggregation and release.Biochim. Biophys. Acta. 1974; 345: 231-242
- Immunochemical studies on the specificity of the peanut (Carbohyd. Res. 1976; 51: 107-118
) agglutinin.
- Immunochemical studies on specificity of soybean agglutinin.Carbohyd. Res. 1974; 37: 89-102
- Speicificity of twelve lectins towards oligosaccharides and glycopeptides related to N-glycosylproteins.Eur. J. Biochem. 1981; 117: 41-55
- Structural determinants ofJ. Biol. Chem. 1979; 254: 9795-9799
aggltuinin and toxin specificity for oligosaccharides.
- Characterization of membrane glycoproteins of human platelets.in: Peeters H. Proc. of the 27th Meeting, Protides of the Biological Fluids. Pergamon, Oxford, New York1980: 871-874
- Relationship tetween glycocalicin and glycoprotein Ib of human platelets.in: Proc. Natl. Acad. Sci. USA. 78. 1981: 2712-2716
- Studies on the metabolism of human blood platelets in relation to clot retraction.Thromb. Diath. Haemorrh. 1960; 4: 178-195
- Some effects of ionophores for divalent cations on blood platelets.Biochim. Biophys. Acta. 1974; 372: 109-121
- Methods for the quantitative estimation of N-acetyneuraminic acid and their application to hydrolysates of sialomucoids.Biochem. J. 1961; 81: 384-392
- Characterization of two plant lectins fromBiochemistry. 1974; 13: 196-204
and their quantitative interaction with a murine lymphoma.
- Glycoproteins of platelet membranes from Glanzmann's thrombasthenia.Eur. J. Biochem. 1981; 116: 379-388
- Platelet glycocalicin.in: Its membrane association and solubilization in aqueous media. Biochim. Biophys. Acta. 597. 1980: 235-246
- Calcium-dependent protease in human platelets.J. Biol. Chem. 1977; 252: 5602-5605
- Further evidence for glycocalicin being derived from a larger amphiphilic platelet membrane glycoprotein.Thromb. Res. 1980; 18: 773-785
Article info
Publication history
Received in revised form:
March 30,
1982
Received:
December 11,
1981
Identification
Copyright
© 1982 Published by Elsevier Inc.