Unveiling systemic responses in kidney transplantation: interplay between the allograft transcriptome and serum proteins

Bibliographic Details
Title: Unveiling systemic responses in kidney transplantation: interplay between the allograft transcriptome and serum proteins
Authors: Konrad Buscher, Rebecca Rixen, Paula Schütz, Veerle Van Marck, Barbara Heitplatz, Gert Gabriels, Ulrich Jehn, Daniela Anne Braun, Hermann Pavenstädt, Stefan Reuter
Source: Frontiers in Immunology, Vol 15 (2024)
Publisher Information: Frontiers Media S.A., 2024.
Publication Year: 2024
Collection: LCC:Immunologic diseases. Allergy
Subject Terms: kidney, kidney transplantation, systems biology, allograft, transcriptomics, Immunologic diseases. Allergy, RC581-607
More Details: Immunity, as defined by systems biology, encompasses a holistic response throughout the body, characterized by intricate connections with various tissues and compartments. However, this concept has been rarely explored in kidney transplantation. In this proof-of-concept study, we investigated a direct association between the allograft phenotype and serum protein signatures. Time-matched samples of graft biopsies and blood serum were collected in a heterogeneous cohort of kidney-transplanted patients (n = 15) for bulk RNA sequencing and proteomics, respectively. RNA transcripts exhibit distinct and reproducible, coregulated gene networks with specific functional profiles. We measured 159 serum proteins and investigated correlations with gene expression networks. Two opposing axes—one related to metabolism and the other to inflammation—were identified. They may represent a biological continuum between the allograft and the serum and correlate with allograft function, but not with interstitial fibrosis or proteinuria. For signature validation, we used two independent proteomic data sets (n = 21). Our findings establish a biological link between the allograft transcriptome and the blood serum proteome, highlighting systemic immune effects in kidney transplantation and offering a promising framework for developing allograft-linked biomarkers.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1664-3224
Relation: https://www.frontiersin.org/articles/10.3389/fimmu.2024.1398000/full; https://doaj.org/toc/1664-3224
DOI: 10.3389/fimmu.2024.1398000
Access URL: https://doaj.org/article/3acdb81ce4a5415b8f83fbded7b7430f
Accession Number: edsdoj.3acdb81ce4a5415b8f83fbded7b7430f
Database: Directory of Open Access Journals
More Details
ISSN:16643224
DOI:10.3389/fimmu.2024.1398000
Published in:Frontiers in Immunology
Language:English