PURPOSE:To carry out preliminary study on immunogenicity or'the retina and provide theoretical bassis of transplant rejection of the retina. METHODS:The allogeneic whole retinal or photoreceptor layer from C57BL/6 mice wer transplanted subcutaneously into BALB/C mice for antigen exposure and delayed hypersensitivity (DH) and modified 51Cr-release assay for specific cytotoxic T lymphoeytes (CTL)were emploied. RESULTS:The allogeneic whole retinal transplantation gave rise to DH(Plt;0.05 )and increased function of CTL of which the killing rate was 33.4% in concentration of 1:90 comparing with negative group (4.8% in 1:90,Plt;0.05)and the risen function could be blocked by anti-CD8. CONCLUSION:We deduce that allogeneic whole retina has immunogenicity and should pay attention to transplant rejection postoperatively.but the photoreceptor layer seems to have no immunogenicity and may be no transplant rejection after its transplantation. （Chin J Ocul Fundus Dis,1997,13: 234-236）
The stimulating effects of subretinal fluid (SRF) of 31 patients with rhegnmtoganous retinal detachment (among them 5 are recurrent) on the growth of fihroblasts were investigated. The results demonstrated that all samples of SRF showed stimulating effect in a variable degree.The range of proliferation-stimulating activity was from 86. 7% to 366.7% above the baseline.The stimulating ahility was mainly related to the degree of PVR and may be also related to the extent and clinical course of the detaehrnent. When stimulating rate was S0Y0 ,the dilution multiple of SRF was higher in recurrent patients than that in initiate ( P＜0.01). （Chin J Ocul Fundus Dis,1993,9:11-13）