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Pregnancy-induced HLA antibodies respond more vigorously after renal transplantation than antibodies induced by prior transplantation
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Higgins, Rob, Lowe, David Philip, Daga, Sunil, Hathaway, Mark, Williams, C, Lam, F. T., Kashi, Habib, Tan, Lam Chin, Imray, C. (Chris), Fletcher, Simon, Krishnan, Nithya, Hart, Pat, Zehnder, Daniel and Briggs, David (2015) Pregnancy-induced HLA antibodies respond more vigorously after renal transplantation than antibodies induced by prior transplantation. Human Immunology, 76 (8). pp. 546-552. doi:10.1016/j.humimm.2015.06.013
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Official URL: http://dx.doi.org/10.1016/j.humimm.2015.06.013
Abstract
Acute antibody mediated rejection after HLA-specific antibody incompatible renal transplantation is related to donor specific HLA antibody (DSA) levels. DSA levels may rise sharply after transplant, and aim of this study was to examine changes in DSA levels, particularly according to the primary sensitising event. Changes in 220 HLA specificities in 64 patients over the first 30days after transplantation were evaluated using microbead assays. The greatest increase from pre-treatment to peak DSA levels was seen in pregnancy-stimulated specificities, median (IQR) increase in MFI of 1981 (94-5870). The next highest increase was for those sensitised by transplant with repeat HLA epitope mismatch, at 546 (-308-2698) (p<0.01). The difference was especially marked when the pre-treatment antibody level was low; with pre-treatment MFI <1000, peak level was >1000 in 19/26 (73%) of pregnancy stimulated specificities, compared with 9/29 (31%) for all others (p<0.001). DSA production to specificities stimulated by previous pregnancy was marked, even from very low pre-transplant levels. By contrast, there was a lower rate of antibody resynthesis to specificities repeated from previous transplants, both at antigen and epitope levels.
| Item Type: | Journal Article | ||||||||||
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| Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Biomedical Sciences > Translational & Experimental Medicine > Metabolic and Vascular Health (- until July 2016) Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Biomedical Sciences > Translational & Experimental Medicine Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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| Journal or Publication Title: | Human Immunology | ||||||||||
| Publisher: | Elsevier Science BV | ||||||||||
| ISSN: | 0198-8859 | ||||||||||
| Official Date: | August 2015 | ||||||||||
| Dates: |
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| Volume: | 76 | ||||||||||
| Number: | 8 | ||||||||||
| Page Range: | pp. 546-552 | ||||||||||
| DOI: | 10.1016/j.humimm.2015.06.013 | ||||||||||
| Status: | Peer Reviewed | ||||||||||
| Publication Status: | Published | ||||||||||
| Access rights to Published version: | Restricted or Subscription Access |
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