PMID- 18097181 OWN - NLM STAT- MEDLINE DCOM- 20080206 LR - 20171116 IS - 1423-0267 (Electronic) IS - 0030-3755 (Linking) VI - 222 IP - 1 DP - 2008 TI - Culture in vitro modulation of human leukocyte antigen molecules and costimulatory molecules on human retinal pigment epithelium. PG - 48-52 AB - PURPOSE: To determine the potential of culture in vitro to alter the human leukocyte antigen (HLA) molecules and costimulatory molecules on human retinal pigment epithelium (RPE). METHODS: Pure RPE were isolated and cultured. Two sets of RPE (normal and activated) were used. Activated RPE were obtained by incubating primary cultures of RPE with recombinant human interferon-gamma. The expression of HLA molecules and costimulatory molecules on human RPE at different passages after culture in vitro were analyzed quantitatively by flow cytometry. RESULTS: In the process of routine culture on culture flask, the duration of culture in vitro was significantly correlated with the expression of HLA-ABC molecules on the normal RPE and the activated RPE (r = -0.893, p < 0.001 and r = -0.964, p < 0.001 respectively), HLA-DR molecule on the activated RPE (r = -0.901, p < 0.001) and intercellular adhesion molecule-1 on the normal RPE (r = 0.961, p < 0.001). There were no correlations between the duration of culture in vitro and the expression of HLA-DR molecule on the normal RPE, intercellular adhesion molecule-1 on the activated RPE, B7-1 and B7-2 molecules on the normal RPE and the activated RPE. CONCLUSIONS: The chronic rejection is the major immunological rejection following RPE allogeneic graft. Culture in vitro modulation of HLA molecules and costimulatory molecules on RPE may increase lymphocyte infiltration and the activated RPE. CI - (c) 2007 S. Karger AG, Basel. FAU - Xie, Mao-Song AU - Xie MS AD - Department of Ophthalmology, School of Medicine, Shandong University, Jinan, China. FAU - Xu, Guo-Xing AU - Xu GX LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20071219 PL - Switzerland TA - Ophthalmologica JT - Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde JID - 0054655 RN - 0 (Antigens, Surface) RN - 0 (B7-1 Antigen) RN - 0 (B7-2 Antigen) RN - 0 (HLA Antigens) RN - 0 (HLA-DR Antigens) RN - 0 (Recombinant Proteins) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Antigens, Surface/*metabolism MH - B7-1 Antigen MH - B7-2 Antigen MH - Cells, Cultured MH - Flow Cytometry MH - Graft Rejection/immunology MH - HLA Antigens/*metabolism MH - HLA-DR Antigens/metabolism MH - Humans MH - In Vitro Techniques MH - Intercellular Adhesion Molecule-1/metabolism MH - Interferon-gamma/*pharmacology MH - Lymphocyte Activation/immunology MH - Lymphocytosis/immunology MH - Pigment Epithelium of Eye/drug effects/immunology/*physiology/transplantation MH - Recombinant Proteins/pharmacology EDAT- 2007/12/22 09:00 MHDA- 2008/02/07 09:00 CRDT- 2007/12/22 09:00 PHST- 2007/12/22 09:00 [pubmed] PHST- 2008/02/07 09:00 [medline] PHST- 2007/12/22 09:00 [entrez] AID - 000109279 [pii] AID - 10.1159/000109279 [doi] PST - ppublish SO - Ophthalmologica. 2008;222(1):48-52. doi: 10.1159/000109279. Epub 2007 Dec 19.