{"database":"GEO","file_versions":[{"headers":{"Content-Type":["application/json"]},"body":{"files":{"Other":["ftp://ftp.ncbi.nlm.nih.gov/geo/series/GSE320nnn/GSE320324/"]},"type":"primary"},"statusCode":"OK","statusCodeValue":200}],"scores":null,"additional":{"omics_type":["Transcriptomics"],"species":["Mus musculus"],"gds_type":["Expression profiling by high throughput sequencing"],"full_dataset_link":["https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE320324"],"repository":["GEO"],"entry_type":["GSE"],"additional_accession":[]},"is_claimable":false,"name":"RSPO2 synergizes with BMP2 to enhance wnt-dependent osteoblast differentiation","description":"Canonical Wnt signaling plays a critical role in osteoblast differentiation and bone formation and is enhanced by R-spondin (RSPO) proteins. Bone morphogenetic protein-2 (BMP2) is a clinically used osteogenic factor whose regenerative efficacy is limited by dose-dependent adverse effects. We recently identified RSPO2 as a contextual enhancer of BMP2-induced bone formation, but the transcriptional mechanisms underlying this synergy remain incompletely understood. To define the molecular basis of BMP2–RSPO2 cooperation, we performed RNA sequencing (RNA-seq) analysis of MC3T3-E1 osteoblast precursor cells treated with vehicle control, RSPO2, BMP2, or BMP2+RSPO2 for 5 days under osteogenic conditions. Transcriptomic analysis revealed distinct and overlapping gene expression programs regulated by BMP2 and RSPO2, with co-treatment inducing a unique transcriptional signature enriched for genes associated with osteoblast differentiation, Wnt signaling, and cytoskeletal regulation. These data provide mechanistic insight into how RSPO2 potentiates BMP2-induced osteogenesis and support a role for RSPO2 as a therapeutic co-factor to enhance BMP2-mediated bone regeneration.","dates":{"publication":"2026/07/17"},"accession":"GSE320324","cross_references":{"GSM":["GSM9540702","GSM9540703","GSM9540704","GSM9540705","GSM9540706","GSM9540707","GSM9540708","GSM9540709","GSM9540699","GSM9540710","GSM9540700","GSM9540701"],"GPL":["24247"],"GSE":["320324"],"taxon":["Mus musculus"]}}