| Autor: |
Ivy A. Rosales, Grace K. Mahowald, Kristen Tomaszewski, Kiyohiko Hotta, Naoya Iwahara, Takuya Otsuka, Takahiro Tsuji, Yusuke Takada, Ellen Acheampong, Milagros Araujo-Medina, Amy Bruce, Andrea Rios, Anthony Benedict Cosimi, Nahel Elias, Tatsuo Kawai, Hannah Gilligan, Kassem Safa, Leonardo V. Riella, Nina E. Tolkoff-Rubin, Winfred W. Williams, Rex Neal Smith, Robert B. Colvin |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Journal of the American Society of Nephrology : JASN. 33(12) |
| ISSN: |
1533-3450 |
| Popis: |
To seek insights into the pathogenesis of chronic active antibody-mediated rejection (CAMR), we performed mRNA analysis and correlated transcripts with pathologic component scores and graft outcomes.We utilized the NanoString nCounter platform and the Banff Human Organ Transplant gene panel to quantify transcripts on 326 archived renal allograft biopsy samples. This system allowed correlation of transcripts with Banff pathology scores from the same tissue block and correlation with long-term outcomes.The only pathology score that correlated with AMR pathways in CAMR was peritubular capillaritis (ptc). C4d, cg, g, v, i, t, or ci scores did not correlate. DSA-negative CAMR had lower AMR pathway scores than DSA-positive CAMR. Transcript analysis in non-CAMR biopsies yielded evidence of increased risk of later CAMR. Among 108 patients without histologic CAMR, 23 developed overt biopsy-documented CAMR within 5 years and as a group had higher AMR pathway scores (Peritubular capillary inflammation and DSA are the primary drivers of AMR transcript elevation. Transcripts revealed subpathological evidence of AMR, which often preceded histologic CAMR and subpathological evidence of TCMR that predicted graft loss in CAMR. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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