Content Provider	Springer Nature Link
Author	Jeras, M. Delbosc, A. Bohinjec, M. Tongio, M. M.
Copyright Year	2000
Abstract	Twenty nine healthy unrelated individuals were carefully selected and divided into three groups according to their HLA (Human Leukocyte Antigens) phenotypes. A sensitive and reproducible limiting dilution analysis (LDA) based bioassay using CTLL-20 cells for detection of human IL-2 was set up and used to assess the hierarchical impact of highly polymorphic HLA molecules on individual’s alloreactivity. Our main interest was to evaluate the role of HLA-DP molecules in this process. By calculating frequencies of IL-2 producing helper T cell precursors (HTLp) and amounts of IL-2 produced in each experiment, we were able to confirm that HLA-DR molecules are the most potent alloantigens. In 29 different combinations where a single HLA-DP mismatch between stimulating and responding cells was evaluated, some were reasonably tolerant, while the other ones evoked moderate to relatively strong alloimune responses. Finally, two groups with statistically significant difference in alloimune responses to stimulating HLA-DP molecules carrying D,E,A,V or G,G,P,M amino acid sequences at positions 84,85,86 and 87 in the sixth variable region F of the molecule could be formed, according to HTLp frequencies and amounts of IL-2 detected. Data presented are of great importance for the selection of unrelated as well as related bone marrow donors for haematological patients.
Starting Page	r104
Ending Page	r106
File Format	PDF
ISSN	00316768
Journal	Pflügers Archiv
Volume Number	439
Issue Number	1
e-ISSN	14322013
Language	English
Publisher	Springer-Verlag
Publisher Date	2000-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Physiology Physiology (medical) Clinical Biochemistry

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