Accès à distance ? S'identifier sur le proxy UCLouvain
In vitro recognition and impairment of pig islet cells by baboon immune cells: similarity to human cellular reactions.
Primary tabs
- Open access
- 901.98 K
BACKGROUND: Grafting pig islets into patients with type 1 diabetes requires control of the strong cellular xenogeneic rejection. This in vitro study compared the cellular reaction of baboons and humans to pig islet cells (PICs) to confirm the validity of using these animals for further in vivo preclinical trials. METHODS: Baboon or human peripheral blood mononuclear cells (PBMCs) or subsets were co-incubated with PICs from specific pathogen-free adult pigs for 7 days to determine the mechanisms and intensity of PBMC proliferation. Interleukin (IL) 10 and interferon (IFN) gamma secretion were assessed by enzyme-linked immunosorbent assay. Because proliferation was not indicative of aggression, a test based on perifusion analysis of the alteration of basal and stimulated insulin releases from PIC incubated with different baboon and human cells was developed. RESULTS: Baboon PBMCs strongly proliferated in response to PICs (stimulation index [SI]=24.8+/-6.9 [n=8] vs. 23.9+/-3.4 [n=34] for human PBMCs), showing considerable variation in intensity among animals (2.3
Document type
Article de périodique (Journal article) – Journal Article
Access type
Accès libre
Publication date
2001
Journal information
"Transplantation" - Vol. 72, no. 9, p. 1541-8 (2001)
Peer reviewed
yes
issn
0041-1337
Publication status
Publié
Affiliations
UCL
- MD/CHIR - Département de chirurgie
UCL
- (SLuc) Service de chirurgie et transplantation abdominale
MESH Subject
Adult ; Animals ; Antibodies, Monoclonal - pharmacology ; Cells, Cultured ; Cross Reactions ; Histocompatibility Antigens Class II - immunology ; Humans ; Insulin - secretion ; Interferon-gamma - biosynthesis ; Interleukin-10 - biosynthesis - secretion ; Islets of Langerhans - immunology - secretion ; Islets of Langerhans Transplantation - immunology - physiology ; Kinetics ; Lymphocyte Activation ; Models, Animal ; Papio ; Rats ; Specific Pathogen-Free Organisms ; Swine ; Transplantation, Heterologous - immunology
Links
Bibliographic reference
Lalain, S ; Gianello, Pierre ; Gouin, E ; Saï, P. In vitro recognition and impairment of pig islet cells by baboon immune cells: similarity to human cellular reactions.. In: Transplantation, Vol. 72, no. 9, p. 1541-8 (2001)
Permanent URL
http://hdl.handle.net/2078.1/21742