PMID- 20236137 OWN - NLM STAT- MEDLINE DCOM- 20110816 LR - 20110404 IS - 1399-0012 (Electronic) IS - 0902-0063 (Linking) VI - 25 IP - 2 DP - 2011 Mar-Apr TI - De novo membranous nephropathy and antibody-mediated rejection in transplanted kidney. PG - 191-200 LID - 10.1111/j.1399-0012.2010.01213.x [doi] AB - BACKGROUND: The etiology of de novo membranous nephropathy (MN) after kidney transplantation is still uncertain. Immunological response to various allograft antigens is speculated to be a candidate for the etiology. METHODS: Seventeen patients with post-transplant de novo MN were studied clinically and pathologically in comparison with control post-transplant patients without MN. Double immunofluorescent staining was performed to identify the presence of donor-specific human leukocyte antigen (HLA) combined with IgG in the deposits on glomerular capillary walls. RESULTS: De novo MN occurs in relatively late period after transplantation (102.1 +/- 68.3 months), presenting various degree of proteinuria. Histological findings associated with antibody-mediated rejection (AMR), such as peritubular capillaritis and C4d deposition in peritubular capillary, were more frequently observed in the patients with de novo MN than the non-MN control patients. Donor-specific antibody (DSA) was detected in five patients at the time of biopsy. In one case of de novo MN with DSA, a donor-derived HLA was identified in the subepithelial deposits on the glomerular capillary walls combined with IgG deposition. CONCLUSIONS: DSA and AMR might play some roles for the pathogenesis in some patients with de novo MN after kidney transplantation. CI - (c) 2010 John Wiley & Sons A/S. FAU - Honda, Kazuho AU - Honda K AD - Department of Pathology, Tokyo Women's Medical University, Tokyo, Japan. honda@research.twmu.ac.jp FAU - Horita, Shigeru AU - Horita S FAU - Toki, Daisuke AU - Toki D FAU - Taneda, Sekiko AU - Taneda S FAU - Nitta, Kosaku AU - Nitta K FAU - Hattori, Motoshi AU - Hattori M FAU - Tanabe, Kazunari AU - Tanabe K FAU - Teraoka, Satoshi AU - Teraoka S FAU - Oda, Hideaki AU - Oda H FAU - Yamaguchi, Yutaka AU - Yamaguchi Y LA - eng PT - Comparative Study PT - Journal Article PL - Denmark TA - Clin Transplant JT - Clinical transplantation JID - 8710240 RN - 0 (Isoantibodies) SB - IM MH - Adult MH - Case-Control Studies MH - Female MH - Fluorescent Antibody Technique MH - Glomerulonephritis, Membranous/*etiology MH - Graft Rejection/*etiology MH - Humans MH - Isoantibodies/*blood/*immunology MH - Kidney Transplantation/*adverse effects MH - Male MH - Middle Aged MH - Young Adult EDAT- 2010/03/20 06:00 MHDA- 2011/08/17 06:00 CRDT- 2010/03/19 06:00 PHST- 2010/03/19 06:00 [entrez] PHST- 2010/03/20 06:00 [pubmed] PHST- 2011/08/17 06:00 [medline] AID - CTR1213 [pii] AID - 10.1111/j.1399-0012.2010.01213.x [doi] PST - ppublish SO - Clin Transplant. 2011 Mar-Apr;25(2):191-200. doi: 10.1111/j.1399-0012.2010.01213.x.