Gene co-expression networks are associated with obesity-related traits in kidney transplant recipients

Abstract Background Obesity is common among kidney transplant recipients; However biological mediators of obesity are not well understood in this population. Because subcutaneous adipose tissue can be easily obtained during kidney transplant surgery, it provides a unique avenue for studying the mech...

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Main Authors: Rosario B. Jaime-Lara, Abhrarup Roy, Yupeng Wang, Ansley Stanfill, Ann K. Cashion, Paule V. Joseph
Format: Article
Language:English
Published: BMC 2020-03-01
Series:BMC Medical Genomics
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12920-020-0702-5
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author Rosario B. Jaime-Lara
Abhrarup Roy
Yupeng Wang
Ansley Stanfill
Ann K. Cashion
Paule V. Joseph
author_facet Rosario B. Jaime-Lara
Abhrarup Roy
Yupeng Wang
Ansley Stanfill
Ann K. Cashion
Paule V. Joseph
author_sort Rosario B. Jaime-Lara
collection DOAJ
description Abstract Background Obesity is common among kidney transplant recipients; However biological mediators of obesity are not well understood in this population. Because subcutaneous adipose tissue can be easily obtained during kidney transplant surgery, it provides a unique avenue for studying the mechanisms of obesity for this group. Although differential gene expression patterns were previously profiled for kidney transplant patients, gene co-expression patterns can shed light on gene modules not yet explored on the coordinative behaviors of gene transcription in biological and disease processes from a systems perspective. Methods In this study, we collected 29 demographic and clinical variables and matching microarray expression data for 26 kidney transplant patients. We conducted Weighted Gene Correlation Network Analysis (WGCNA) for 5758 genes with the highest average expression levels and related gene co-expression to clinical traits. Results A total of 35 co-expression modules were detected, two of which showed associations with obesity-related traits, mainly at baseline. Gene Ontology (GO) enrichment was found for these two clinical trait-associated modules. One module consisting of 129 genes was enriched for a variety of processes, including cellular homeostasis and immune responses. The other module consisting of 36 genes was enriched for tissue development processes. Conclusions Our study generated gene co-expression modules associated with obesity-related traits in kidney transplant patients and provided new insights regarding the cellular biological processes underlying obesity in this population.
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spelling doaj.art-37dee2472e1f4f92a932f424cb26e1b42022-12-21T23:47:43ZengBMCBMC Medical Genomics1755-87942020-03-0113111210.1186/s12920-020-0702-5Gene co-expression networks are associated with obesity-related traits in kidney transplant recipientsRosario B. Jaime-Lara0Abhrarup Roy1Yupeng Wang2Ansley Stanfill3Ann K. Cashion4Paule V. Joseph5Division of Intramural Research, National Institute of Nursing Research, National Institutes of HealthDivision of Intramural Research, National Institute of Nursing Research, National Institutes of HealthBDX Research & Consulting LLCThe University of Tennessee Health Science Center, College of Nursing, MemphisDivision of Intramural Research, National Institute of Nursing Research, National Institutes of HealthDivision of Intramural Research, National Institute of Nursing Research, National Institutes of HealthAbstract Background Obesity is common among kidney transplant recipients; However biological mediators of obesity are not well understood in this population. Because subcutaneous adipose tissue can be easily obtained during kidney transplant surgery, it provides a unique avenue for studying the mechanisms of obesity for this group. Although differential gene expression patterns were previously profiled for kidney transplant patients, gene co-expression patterns can shed light on gene modules not yet explored on the coordinative behaviors of gene transcription in biological and disease processes from a systems perspective. Methods In this study, we collected 29 demographic and clinical variables and matching microarray expression data for 26 kidney transplant patients. We conducted Weighted Gene Correlation Network Analysis (WGCNA) for 5758 genes with the highest average expression levels and related gene co-expression to clinical traits. Results A total of 35 co-expression modules were detected, two of which showed associations with obesity-related traits, mainly at baseline. Gene Ontology (GO) enrichment was found for these two clinical trait-associated modules. One module consisting of 129 genes was enriched for a variety of processes, including cellular homeostasis and immune responses. The other module consisting of 36 genes was enriched for tissue development processes. Conclusions Our study generated gene co-expression modules associated with obesity-related traits in kidney transplant patients and provided new insights regarding the cellular biological processes underlying obesity in this population.http://link.springer.com/article/10.1186/s12920-020-0702-5Co-expression modulesObesityAssociationEnrichment analysisGene ontologyKidney transplant
spellingShingle Rosario B. Jaime-Lara
Abhrarup Roy
Yupeng Wang
Ansley Stanfill
Ann K. Cashion
Paule V. Joseph
Gene co-expression networks are associated with obesity-related traits in kidney transplant recipients
BMC Medical Genomics
Co-expression modules
Obesity
Association
Enrichment analysis
Gene ontology
Kidney transplant
title Gene co-expression networks are associated with obesity-related traits in kidney transplant recipients
title_full Gene co-expression networks are associated with obesity-related traits in kidney transplant recipients
title_fullStr Gene co-expression networks are associated with obesity-related traits in kidney transplant recipients
title_full_unstemmed Gene co-expression networks are associated with obesity-related traits in kidney transplant recipients
title_short Gene co-expression networks are associated with obesity-related traits in kidney transplant recipients
title_sort gene co expression networks are associated with obesity related traits in kidney transplant recipients
topic Co-expression modules
Obesity
Association
Enrichment analysis
Gene ontology
Kidney transplant
url http://link.springer.com/article/10.1186/s12920-020-0702-5
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