Linked Life Data

7538808

Source:http://linkedlifedata.com/resource/pubmed/id/7538808

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3-4
pubmed:dateCreated
1995-6-26
pubmed:abstractText
The integrin alpha IIb beta 3 (GPIIb-IIIa complex) of blood platelets mediates platelet aggregation by binding adhesive proteins which form bridges between activated cells. This same process is implicated in arterial thrombosis. The goal of our research is to take B-lymphocytes from patients possessing inhibitory antibodies to GPIIb-IIIa and develop technology permitting their production ex vivo. Starting point is the peripheral blood from two patients with Glanzmann's thrombasthenia, an inherited disorder in which platelets lack these complexes, and where high titre antibodies to GPIIb-IIIa have formed following contact with normal platelets after transfusion and/or pregnancy. We describe a strategy of in vitro stimulation to overcome the following constraints: (i) peripheral blood contains a low concentration of antigen-reactive specific B-cells, and (ii) the circulating B-cells are arrested in a phase in which additional stimuli are required to induce antigen-specific clonal activation. Optimal conditions involve the use of a combination of growth factors, polyclonal activators and soluble GPIIb-IIIa prior to the fusion of activated B-cells with either (a) the murine myeloma cell line X63 Ag 8,653 or (b) the heteromyeloma cell line SPM4-0. In this way, we have obtained several cell lines secreting antibodies specific for the GPIIb-IIIa complex. Our next aim is to rescue the relevant human immunoglobulin genes from these hybridoma cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0956-960X
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
165-77
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
The ex vivo production of human monoclonal antibodies to glycoprotein IIb-IIIa complexes of blood platelets.
pubmed:affiliation
URA 1464 CNRS, Hôpital Cardiologique, Pessac, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't