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United States Department of Agriculture

Agricultural Research Service

Title: Summary of the Animal Homologue Section of Human Leukocyte Differentiation Antigens (Hlda8) Workshop

item Saalmuller, Armin - U VIENNA, AUSTRIA
item Lunney, Joan
item Daubenberger, Claudia - SWISS TROPICAL INS SWITZE
item Davis, William - WSU PULLMAN, WA
item Fischer, Uwe - INSEL RIEMS, GERMANY
item Gobel, Thomas - MUNICH, GERMANY
item Griebel, Phil - SASKATOON, CANADA
item Hollemweguer, Enoc - SAN DIEGO, CA
item Meister, Richard - OHIO STATE U COLUMBUS
item Schuberth, Hans-Joachim - HANNOVER, GERMANY
item Sestak, Karol - COVINGTON, LA
item Sopp, Paul - COMPTON, UK
item Steinbach, Falko - BERLIN, GERMANY
item Wu, Xiao-Wei - SAN DIEGO, CA
item Aasted, Bent - COPENHAGEN, DENMARK

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: March 1, 2006
Publication Date: May 23, 2006
Citation: Saalmuller, A., Lunney, J.K., Daubenberger, C., Davis, W., Fischer, U., Gobel, T.W., Griebel, P., Hollemweguer, E., Lasco, T., Meister, R., Schuberth, H., Sestak, K., Sopp, P., Steinbach, F., Wu, X., Aasted, B. 2006. Summary of the animal homologue section of human leukocyte differentiation antigens (hlda8) workshop [abstract]. International Society of Analytical Cytology (ISAC) meeting in Quebec, Canada, May 2006.

Technical Abstract: Development of reagents against leukocyte differentiation antigens in veterinary immunology is slower compared to human and mice. Cross-reactivity studies with monoclonal antibodies (mAb) generated against human molecules represent an excellent approach for the detection of new reagents for the minor characterised species. 377 commercially available mAb from different companies were tested for their reactivity with cells from 16 species – including non-human primates, ruminants, swine, horse, carnivores, rabbit, guinea pig, chicken and fish. In a first round 182 mAb showed at least reactivity with one of the species described above. Most of the cross-reactivity was found against non-human primate leukocytes, but also species in evolution more distant from humans showed in some cases a clear staining pattern in flow cytometry (FCM). In a second round these FCM-results were confirmed by molecular analyses, by immunoprecipitation studies and analyses on transfectants. Interesting was the broad species-overlapping reactivity of mAb directed against CD9 (11 out of 16 species), CD11a (10/16), CD14 (13/16), CD18 (12/16), CD29 (12/16), and CD49d, indicating evolutionary highly conserved epitopes on these surface molecules. Our results suggest the suitability of crossreactive mAb for the animal model studies. Moreover, these findings contribute to our understanding of the evolution of the immune system. Supported by the Veterinary Immunology Committee of IUIS.

Last Modified: 4/21/2015