Abstract
A patient with a lymphoproliferative disorder developed bleeding associated with a prolonged bleeding time and a selective defect of platelet aggregation in response to ristocetin. The patient's purified IgG was shown to inhibit aggregation of washed normal platelets by ristocetin and von Willebrand factor (F VIII:vWF). By Western blotting, it was shown that antibody bound specifically to an antigen of Mr 210,000 present on normal platelets but missing on platelets from patients with congenital Bernard-Soulier syndrome (BSS). Binding was effected by the F(ab)2 portion of the IgG, indicating the presence of an autoantibody rather than an immune complex. These results suggest that the 210,000-Mr protein is involved in the interaction of F VIII:vWF with platelets. Furthermore, we have demonstrated the apparent absence of an additional protein on congenital BSS platelets. Heat-aggregated IgG was also shown to bind to the 210,000-Mr protein, suggesting that this protein may function as an Fc receptor on platelets. The relationship of the 210,000-Mr protein to glycoprotein Ib and the precise role of this protein in the interaction of platelets with F VIII:vWF need to be characterized.
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- Allain J. P., Cooper H. A., Wagner R. H., Brinkhous K. M. Platelets fixed with paraformaldehyde: a new reagent for assay of von Willebrand factor and platelet aggregating factor. J Lab Clin Med. 1975 Feb;85(2):318–328. [PubMed] [Google Scholar]
- Babson S. R., Babson A. L. Development and evaluation of a disposable device for performing simultaneous duplicate bleeding time determinations. Am J Clin Pathol. 1978 Sep;70(3):406–408. doi: 10.1093/ajcp/70.3.406. [DOI] [PubMed] [Google Scholar]
- Beardsley D. S., Spiegel J. E., Jacobs M. M., Handin R. I., Lux S. E., 4th Platelet membrane glycoprotein IIIa contains target antigens that bind anti-platelet antibodies in immune thrombocytopenias. J Clin Invest. 1984 Nov;74(5):1701–1707. doi: 10.1172/JCI111587. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Berndt M. C., Gregory C., Chong B. H., Zola H., Castaldi P. A. Additional glycoprotein defects in Bernard-Soulier's syndrome: confirmation of genetic basis by parental analysis. Blood. 1983 Oct;62(4):800–807. [PubMed] [Google Scholar]
- Chong B. H., Berndt M. C., Koutts J., Castaldi P. A. Quinidine-induced thrombocytopenia and leukopenia: demonstration and characterization of distinct antiplatelet and antileukocyte antibodies. Blood. 1983 Dec;62(6):1218–1223. [PubMed] [Google Scholar]
- Coller B. S., Gralnick H. R. Studies on the mechanism of ristocetin-induced platelet agglutination. Effects of structural modification of ristocetin and vancomycin. J Clin Invest. 1977 Aug;60(2):302–312. doi: 10.1172/JCI108778. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Corash L., Tan H., Gralnick H. R. Heterogeneity of human whole blood platelet subpopulations. I. Relationship between buoyant density, cell volume, and ultrastructure. Blood. 1977 Jan;49(1):71–87. [PubMed] [Google Scholar]
- Degos L., Tobelem G., Lethielleux P., Levy-Toledano S., Caen J., Colombani J. Molecular defect in platelets from patients with bernard-soulier syndrome. Blood. 1977 Nov;50(5):899–903. [PubMed] [Google Scholar]
- Gröttum K. A., Solum N. O. Congenital thrombocytopenia with giant platelets: a defect in the platelet membrane. Br J Haematol. 1969 Mar;16(3):277–290. doi: 10.1111/j.1365-2141.1969.tb00402.x. [DOI] [PubMed] [Google Scholar]
- Hawkes R. Identification of concanavalin A-binding proteins after sodium dodecyl sulfate--gel electrophoresis and protein blotting. Anal Biochem. 1982 Jun;123(1):143–146. doi: 10.1016/0003-2697(82)90634-0. [DOI] [PubMed] [Google Scholar]
- Kunicki T. J., Russell N., Nurden A. T., Aster R. H., Caen J. P. Further studies of the human platelet receptor for quinine- and quinine-dependent antibodies. J Immunol. 1981 Feb;126(2):398–402. [PubMed] [Google Scholar]
- LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
- Madsen L. H., Rodkey L. S. A method for preparing IgG F(ab')2 fragments using small amounts of serum. J Immunol Methods. 1976;9(3-4):355–361. doi: 10.1016/0022-1759(76)90210-6. [DOI] [PubMed] [Google Scholar]
- Moake J. L., Olson J. D., Troll J. H., Tang S. S., Funicella T., Peterson D. M. Binding of radioiodinated human von Willebrand factor to Bernard-Soulier, thrombasthenic and von Willebrand's disease platelets. Thromb Res. 1980 Jul 1;19(1-2):21–27. doi: 10.1016/0049-3848(80)90400-4. [DOI] [PubMed] [Google Scholar]
- Moore A., Ross G. D., Nachman R. L. Interaction of platelet membrane receptors with von Willebrand factor, ristocetin, and the Fc region of immunoglobulin G. J Clin Invest. 1978 Nov;62(5):1053–1060. doi: 10.1172/JCI109210. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nachman R. L., Kinoshita T., Ferris B. Structural analysis of human platelet membrane glycoprotein I complex. Proc Natl Acad Sci U S A. 1979 Jun;76(6):2952–2954. doi: 10.1073/pnas.76.6.2952. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nurden A. T., Caen J. P. The different glycoprotein abnormalities in thrombasthenic and Bernard-Soulier platelets. Semin Hematol. 1979 Jul;16(3):234–250. [PubMed] [Google Scholar]
- Pfueller S. L., de Rosbo N. K., Bilston R. A. Platelets deficient in glycoprotein I have normal Fc receptor expression. Br J Haematol. 1984 Apr;56(4):607–615. doi: 10.1111/j.1365-2141.1984.tb02185.x. [DOI] [PubMed] [Google Scholar]
- Towbin H., Staehelin T., Gordon J. Electrophoretic transfer of proteins from polyacrylamide gels to nitrocellulose sheets: procedure and some applications. Proc Natl Acad Sci U S A. 1979 Sep;76(9):4350–4354. doi: 10.1073/pnas.76.9.4350. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Woods V. L., Jr, Kurata Y., Montgomery R. R., Tani P., Mason D., Oh E. H., McMillan R. Autoantibodies against platelet glycoprotein Ib in patients with chronic immune thrombocytopenic purpura. Blood. 1984 Jul;64(1):156–160. [PubMed] [Google Scholar]
- Zimmerman T. S., Ruggeri Z. M., Fulcher C. A. Factor VIII/von Willebrand factor. Prog Hematol. 1983;13:279–309. [PubMed] [Google Scholar]

