Transcriptome Analysis in Renal Transplant Biopsies Not Fulfilling Rejection Criteria
Moreso, Francesc (Universitat Autònoma de Barcelona. Departament de Medicina)
Sellarès, Joana (Hospital Universitari Vall d'Hebron)
Soler, María José (Hospital Universitari Vall d'Hebron)
Seron, Daniel (Universitat Autònoma de Barcelona. Departament de Medicina)

Date:	2020
Abstract:	The clinical significance of renal transplant biopsies displaying borderline changes suspicious for T-cell mediated rejection (TCMR) or interstitial fibrosis and tubular atrophy (IFTA) with interstitial inflammation has not been well defined. Molecular profiling to evaluate renal transplant biopsies using microarrays has been shown to be an objective measurement that adds precision to conventional histology. We review the contribution of transcriptomic analysis in surveillance and indication biopsies with borderline changes and IFTA associated with variable degrees of inflammation. Transcriptome analysis applied to biopsies with borderline changes allows to distinguish patients with rejection from those in whom mild inflammation mainly represents a response to injury. Biopsies with IFTA and inflammation occurring in unscarred tissue display a molecular pattern similar to TCMR while biopsies with IFTA and inflammation in scarred tissue, apart from T-cell activation, also express B cell, immunoglobulin and mast cell-related genes. Additionally, patients at risk for IFTA progression can be identified by genes mainly reflecting fibroblast dysregulation and immune activation. At present, it is not well established whether the expression of rejection gene transcripts in patients with fibrosis and inflammation is the consequence of an alloimmune response, tissue damage or a combination of both.
Grants:	Ministerio de Economía y Competitividad RD16/0009/0030 Instituto de Salud Carlos III PI17/00257 Instituto de Salud Carlos III PI18/01704 Instituto de Salud Carlos III PI18/01382
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Renal transplantation ; Biopsies ; Transcriptome ; Microarrays ; Borderline changes ; Interstitial fibrosis and tubular atrophy
Published in:	International journal of molecular sciences, Vol. 21 (march 2020) , ISSN 1422-0067

DOI: 10.3390/ijms21062245
PMID: 32213927

13 p, 591.0 KB

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