TY - T1的转录组调查显示s donor-specific gene signatures in human lung transplants JF - European Respiratory Journal JO - Eur Respir J DO - 10.1183/13993003.00327-2020 VL - 57 IS - 4 SP - 2000327 AU - Baciu, Cristina AU - Sage, Andrew AU - Zamel, Ricardo AU - Shin, Jason AU - Bai, Xiao-Hui AU - Hough, Olivia AU - Bhat, Mamatha AU - Yeung, Jonathan C. AU - Cypel, Marcelo AU - Keshavjee, Shaf AU - Liu, Mingyao Y1 - 2021/04/01 UR - //www.qdcxjkg.com/content/57/4/2000327.abstract N2 - Introduction Transplantation of lungs from donation after circulatory death (DCD) in addition to donation after brain death (DBD) became routine worldwide to address the global organ shortage. The development of ex vivo lung perfusion (EVLP) for donor lung assessment and repair contributed to the increased use of DCD lungs. We hypothesise that a better understanding of the differences between lungs from DBD and DCD donors, and between EVLP and directly transplanted (non-EVLP) lungs, will lead to the discovery of the injury-specific targets for donor lung repair and reconditioning.Methods Tissue biopsies from human DBD (n=177) and DCD (n=65) donor lungs, assessed with or without EVLP, were collected at the end of cold ischaemic time. All samples were processed with microarray assays. Gene expression, network and pathway analyses were performed using R, Ingenuity Pathway Analysis and STRING. Results were validated with protein assays, multiple logistic regression and 10-fold cross-validation.Results Our analyses showed that lungs from DBD donors have upregulation of inflammatory cytokines and pathways. In contrast, DCD lungs display a transcriptome signature of pathways associated with cell death, apoptosis and necrosis. Network centrality revealed specific drug targets to rehabilitate DBD lungs. Moreover, in DBD lungs, tumour necrosis factor receptor-1/2 signalling pathways and macrophage migration inhibitory factor-associated pathways were activated in the EVLP group. A panel of genes that differentiate the EVLP from the non-EVLP group in DBD lungs was identified.Conclusion The examination of gene expression profiling indicates that DBD and DCD lungs have distinguishable biological transcriptome signatures.Lungs from DBD donors have increased activation of inflammatory pathways. In contrast, cell death, apoptosis and necrosis are activated in lungs from DCD donors. EVLP and non-EVLP lungs also have distinct transcriptomic signatures. https://bit.ly/36SWsdb ER -