Abstract:
:Sera were obtained from 48 gravida II prenatal and 211 multiparous nonpregnant females and examined for leukocyte antibodies comparing a standard lymphocytotoxicity (CY) test with capillary agglutination (CA). Antibody was detected in 41% of the samples in both groups but only CA tests were positive with approximately one-half of the prenatal and three-fourths of the multiparous specimens. Although, CA reactions, when accompanied by positive CY responses, usually correlated with HLA, no correlation with HLA, 5b, or the neutrophil antigens was determined for 35 of the 48 sera reacting only by CA. As a model to test the specificity of CA positive-CY negative antisera, four extensively studied sera were further analyzed in 16 families. Independent segregation from the HLA complex and ABO and Rh antigens was confirmed and two of the sera appeared to detect separate clusters of reactions in conjunction with some of the other reagents. Pre- and postgraft samples obtained from 23 living related and 75 cadaveric renal transplanted patients were investigated and compared for graft function and prospective tissue typing. Although direct crossmatches were negative prior to surgery, 17.9% of the pretransplant samples from living related and 28.0% from cadaveric recipients contained detectable antibody when tested against a cell panel. Similar to the prenatal and multiparous groups, the majority of these responses were detected by CA. Following engraftment, antibody first became evident in 11 of 19 (58%) living related and in 23 of 53 (48.2%) cadaveric hosts. There was a striking association between the development of CA and CY antibody and failure, as contrasted to 100% 9-month or greater survival in 10 of 10 living related and 15 of 15 cadaveric transplants in whom only CA antibodies arose postoperatively. In total, these studies indicate that CA reacts with HLA antigens in common with CY tests. In addition, CA may detect HLA when CY is negative but many other reactions appear to be directed at non-HLA specificities. The relevance of CA-only responses to clinical transplantation remains uncertain, but we may speculate that they have an enhancing effect on the course of renal transplantation and are associated with important histocompatibility determinants.
journal_name
Transplantationjournal_title
Transplantationauthors
Thompson JS,Jackson D,Greazel NA,Parmely MJ,Severson CDdoi
10.1097/00007890-197602000-00001subject
Has Abstractpub_date
1976-02-01 00:00:00pages
85-93issue
2eissn
0041-1337issn
1534-6080journal_volume
21pub_type
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