{"database":"GEO","file_versions":[{"headers":{"Content-Type":["application/json"]},"body":{"files":{"Txt":["ftp://ftp.ncbi.nlm.nih.gov/geo/series/GSE289nnn/GSE289975/suppl/filelist.txt"],"Raw":["ftp://ftp.ncbi.nlm.nih.gov/geo/series/GSE289nnn/GSE289975/suppl/GSE289975_RAW.tar"],"Other":["ftp://ftp.ncbi.nlm.nih.gov/geo/series/GSE289nnn/GSE289975/"]},"type":"primary"},"statusCode":"OK","statusCodeValue":200}],"scores":null,"additional":{"omics_type":["Transcriptomics"],"species":["Homo sapiens"],"gds_type":["Expression profiling by high throughput sequencing"],"full_dataset_link":["https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE289975"],"repository":["GEO"],"entry_type":["GSE"],"additional_accession":[]},"is_claimable":false,"name":"Metabolic reprogramming driven by impaired trophoblasts and decidual XCR1+PMN-MDSCs crosstalk controls adverse outcomes in advanced maternal age","description":"Decidual polymorphonuclear myeloid-derived suppressor cells (PMN-MDSCs) are crucial for maternal–fetal stability and accumulate to support fetal development. Although advanced maternal age (AMA) increases the risk of adverse outcomes, the regulatory role and mechanism of decidual PMN-MDSCs in these outcomes remain unclear. Herein, the XCL1–XCR1 interaction mediated specific crosstalk between trophoblast cells and decidual PMN-MDSCs in both humans and mice. Single-cell sequencing identified a decidual PMN-MDSCs subset highly expressing XCR1 markedly reduced in AMA. Impaired XCL1-stimulated decidual XCR1+PMN-MDSCs delayed fetal growth in AMA and Xcr1-/- pregnant mice. Perinatal XCL1 supplementation and oltipraz treatment rescued these functions by activating decidual XCR1+PMN-MDSCs in AMA mice, not Xcr1-/- pregnant mice. The XCL1–XCR1 axis induced FOXO1 nuclear localization, regulating oxidative phosphorylation-related targets and enabling metabolic processes. Hence, XCL1–XCR1 crosstalk between trophoblast cells and PMN-MDSCs is critical in driving metabolic reprogramming of decidual XCR1+PMN-MDSCs and controlling adverse outcomes caused by AMA.","dates":{"publication":"2026/04/08"},"accession":"GSE289975","cross_references":{"GSM":["GSM8802810","GSM8802806","GSM8802808","GSM8802807","GSM8802809"],"GPL":["29480"],"GSE":["289975"],"taxon":["Homo sapiens"],"PMID":["[41524173]"]}}