polyI:C暴露后,母胎界面发生强烈的免疫反应。妊娠母鼠在胚胎日(E)11和E12分别腹腔注射20 mg/kg polyI:C以诱导母体免疫激活(MIA),或以生理盐水作为对照。在E12(注射后3小时,hpi)和E14 (48 hpi)对母胎界面(MFI)组织进行大量rna测序。(一)实验设计。收集3、48 h胎盘组织和胎儿体。采用Sx PCR对胎体进行基因分型,以区分胎盘提取物的性别。按E12和E14时间点按窝数分组,n = 4窝/组。从MFI组织中分离(B-G) RNA,对4个实验组进行批量RNA测序,每组4个样本。(B)主成分分析(PCA)显示E12胎盘样本的聚类。(C)火山图显示E12 MFI组织中差异表达基因的数量,比较polyI:C和生理盐水(FDR < 0.1),并按性别组合。 Dark purple dots indicate genes that passed the combined p-value < 1x10-5 and log2FC > 2 cutoff of significance, light purple dots indicate genes with p-value < 1x10-5, and dark grey dots indicate genes with log2FC > 2. (D) Heatmap representation of the top 20 genes upregulated in the polyI:C group, combined by sex (FDR < 0.1). (E) Interferon pathway gene expression (rlog normalized counts) compared between polyI:C and saline groups, combined by sex. (F) Cytoscape network map illustrating select shared gene ontology (GO) terms. (G) Gene set enrichment analysis (GSEA) using KEGG pathways from genes upregulated (FDR < 0.1) in the polyI:C group. Dot plot of select enriched KEGG terms. (H) Genes related to Th17 differentiation compared between polyI:C and saline groups, combined by sex and expression levels visualized by heatmap. (I) GSEA of significantly downregulated genes in the polyI:C group (FDR < 0.1). Select GO terms shown. Statistical significance calculated by unpaired Student’s t-test (E). ****P < 0.0001. Credit:大脑、行为和免疫(2022)。DOI: 10.1016 / j.bbi.2022.10.024