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Search for downstream target genes of HTG3 based on RNA seq data

ABSTRACT: With the threshold of absolute value of log2 (Fold Change) ≥1 and P < 0.05, 4122 and 4100 differentially expressed genes (DEGs) were up-regulated and down-regulated, respectively by HS in ZH11; 4725 genes(H-DEGs) were up or down-regulated in the htg3 mutant under normal or stress conditions; Among the H-DEGs, 1025 and 947 genes were up- and down-regulated, respectively, by HS in ZH11.

ORGANISM(S): Oryza sativa

PROVIDER: GSE197401 | GEO | 2022/02/28

REPOSITORIES: GEO

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Project description:Heat stress (HS) could damage animal reproduction, while the mechanisms are still required to be better understood. Here, we showed that incubation of porcine immature Sertoli cells (iSCs) at 43 °C for 30 minutes followed 36h recovery under normal culture could inhibit the proliferation, promote apoptosis and increase the lactate production. Then, we profiled mRNA expression by RNA sequencing on Control (before HS), HS0.5 (0h after HS) and HS0.5-R36 (36h recovery after HS) groups of iSCs. We identified 126 (92 up- and 64 down-regulated), 3372 (2076 up- and 1296 down-regulated) and 3096 (1772 up- and 1324 down-regulated) differentially expressed (DE) mRNAs respectively in HS0 vs. Control, HS0-R36 vs. HS0 and HS0-R36 vs. Control comparisons. Gene ontology (GO ) enrichment found multiple significantly enriched biological pathways involved in different comparisons, including cellular response to heat, heat shock protein binding, regulation of cellular response to stress, RNA polyadenylation, sterol biosynthetic process, positive regulation of stress-activated MAPK cascade, chaperone-mediated protein folding, ATPase activity, cell cycle process and DNA replication etc. KEGG analysis showed the changed pathways, including cell cycle, MAPK, P53, PI3K-AKT, GnRH, HIF1, Wnt, cAMP signal pathways and Glycolysis/Gluconeogenesis etc. RT-qPCR validation of 9 DEGs (DNAJB1, TRAF6, INSIG1, GADD45G, HDAC6, FKBP4, SERPINE1, PFKP and GALM) showed the expression change trend of most DEGs (except TRAF6) consistent with the RNA-seq. Moreover, 6 of HSPs (HSPA6, HSPB1, HSPD1, HSP90AA1, HSP90AB1 and HSPH1) were validated by RT-qPCR and 5 of 6 (except HSP90AB1) showed the similar expression trend to RNA-seq results. Further validation of HSP90AA1 on protein level via immunostaining and westernbloting showed similar expression trend to RT-qPCR and RNA-seq. Taken together, HS could extensively change the global transcriptome, especially HSPs, to affect proliferation, apoptosis and metabolite production of pig iSCs.

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Search for downstream target genes of HTG3 based on RNA seq data

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