Transplant International (Jul 2024)

Antibody Mediated Rejection and T-cell Mediated Rejection Molecular Signatures Using Next-Generation Sequencing in Kidney Transplant Biopsies

  • Esteban Cortes Garcia,
  • Alessia Giarraputo,
  • Maud Racapé,
  • Valentin Goutaudier,
  • Cindy Ursule-Dufait,
  • Pierre de la Grange,
  • Lucie Adoux,
  • Marc Raynaud,
  • Clément Couderau,
  • Fariza Mezine,
  • Jessie Dagobert,
  • Oriol Bestard,
  • Francesc Moreso,
  • Jean Villard,
  • Fabian Halleck,
  • Magali Giral,
  • Sophie Brouard,
  • Richard Danger,
  • Pierre-Antoine Gourraud,
  • Marion Rabant,
  • Lionel Couzi,
  • Moglie Le Quintrec,
  • Nassim Kamar,
  • Emmanuel Morelon,
  • François Vrtovsnik,
  • Jean-Luc Taupin,
  • Renaud Snanoudj,
  • Christophe Legendre,
  • Christophe Legendre,
  • Dany Anglicheau,
  • Dany Anglicheau,
  • Klemens Budde,
  • Carmen Lefaucheur,
  • Carmen Lefaucheur,
  • Alexandre Loupy,
  • Alexandre Loupy,
  • Olivier Aubert,
  • Olivier Aubert

DOI
https://doi.org/10.3389/ti.2024.13043
Journal volume & issue
Vol. 37

Abstract

Read online

Recently, interest in transcriptomic assessment of kidney biopsies has been growing. This study investigates the use of NGS to identify gene expression changes and analyse the pathways involved in rejection. An Illumina bulk RNA sequencing on the polyadenylated RNA of 770 kidney biopsies was conducted. Differentially-expressed genes (DEGs) were determined for AMR and TCMR using DESeq2. Genes were segregated according to their previous descriptions in known panels (microarray or the Banff Human Organ Transplant (B-HOT) panel) to obtain NGS-specific genes. Pathway enrichment analysis was performed using the Reactome and Kyoto Encyclopaedia of Genes and Genomes (KEGG) public repositories. The differential gene expression using NGS analysis identified 6,141 and 8,478 transcripts associated with AMR and TCMR. While most of the genes identified were included in the microarray and the B-HOT panels, NGS analysis identified 603 (9.8%) and 1,186 (14%) new specific genes. Pathways analysis showed that the B-HOT panel was associated with the main immunological processes involved during AMR and TCMR. The microarrays specifically integrated metabolic functions and cell cycle progression processes. Novel NGS-specific based transcripts associated with AMR and TCMR were discovered, which might represent a novel source of targets for drug designing and repurposing.

Keywords