1. Gene Expression Profile of Human Mesenchymal Stromal Cells Exposed to Hypoxic and Pseudohypoxic Preconditioning—An Analysis by RNA Sequencing
- Author
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Katarzyna Zielniok, Małgorzata Rydzanicz, Anna Burdzinska, Leszek Paczek, Victor Murcia Pienkowski, Agnieszka Koppolu, and Radoslaw Zagozdzon
- Subjects
0301 basic medicine ,Adult ,Male ,Stromal cell ,QH301-705.5 ,Glycine ,Gene Expression ,HIF-1α ,RNA-Seq ,MSCs ,Biology ,Catalysis ,Article ,Inorganic Chemistry ,Transcriptome ,03 medical and health sciences ,0302 clinical medicine ,Gene expression ,Transcriptional regulation ,Humans ,transcriptional regulation ,Physical and Theoretical Chemistry ,Biology (General) ,hypoxic priming ,Picolinic Acids ,Molecular Biology ,Gene ,QD1-999 ,Spectroscopy ,Cells, Cultured ,mesenchymal stem cells ,Vadadustat ,Organic Chemistry ,Mesenchymal stem cell ,PHDs inhibitor ,General Medicine ,Middle Aged ,Cell Hypoxia ,Computer Science Applications ,Chromatin ,Cell biology ,Chemistry ,030104 developmental biology ,030220 oncology & carcinogenesis ,Female - Abstract
Mesenchymal stromal cell (MSC) therapy is making its way into clinical practice, accompanied by research into strategies improving their therapeutic potential. Preconditioning MSCs with hypoxia-inducible factors-α (HIFα) stabilizers is an alternative to hypoxic priming, but there remains insufficient data evaluating its transcriptomic effect. Herein, we determined the gene expression profile of 6 human bone marrow-derived MSCs preconditioned for 6 h in 2% O2 (hypoxia) or with 40 μM Vadadustat, compared to control cells and each other. RNA-Sequencing was performed using the Illumina platform, quality control with FastQC and adapter-trimming with BBDUK2. Transcripts were mapped to the Homo_sapiens. GRCh37 genome and converted to relative expression using Salmon. Differentially expressed genes (DEGs) were generated using DESeq2 while functional enrichment was performed in GSEA and g:Profiler. Comparison of hypoxia versus control resulted in 250 DEGs, Vadadustat versus control 1071, and Vadadustat versus hypoxia 1770. The terms enriched in both phenotypes referred mainly to metabolism, in Vadadustat additionally to vesicular transport, chromatin modifications and interaction with extracellular matrix. Compared with hypoxia, Vadadustat upregulated autophagic, phospholipid metabolism, and TLR cascade genes, downregulated those of cytoskeleton and GG-NER pathway and regulated 74 secretory factor genes. Our results provide valuable insight into the transcriptomic effects of these two methods of MSCs preconditioning.
- Published
- 2021
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