Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Proteomic profiling of intermittent parathyroid hormone-preconditioned BMSC-derived exosomes

ABSTRACT: This project investigates the proteomic alterations induced by intermittent parathyroid hormone preconditioning in exosomes derived from rat bone marrow mesenchymal stem cells. Exosomes were collected from untreated BMSCs (EXO), BMSCs subjected to continuous PTH stimulation (cEXO), and BMSCs subjected to intermittent PTH stimulation (iEXO). Three biological replicates per group were analyzed using label-free data-independent acquisition LC-MS/MS. Comparative proteomic analysis was performed to characterize the molecular signatures associated with intermittent PTH preconditioning and their potential roles in osteogenesis and bone regeneration.

ORGANISM(S): Rattus Norvegicus

SUBMITTER: Zezhu Zhou

PROVIDER: PXD081324 | iProX | Sat Jul 18 00:00:00 BST 2026

REPOSITORIES: iProX

ACCESS DATA

Json Xml

Similar Datasets

Importin-7 Promotes Tension-Induced Osteogenesis by Regulating RUNX2 Nuclear Translocation during Orthodontic Tooth Movement

Project description:Orthodontic tooth movement (OTM) is primarily driven by alveolar bone remodeling, wherein tension-induced osteogenesis plays a central role. Importin7 (IPO7) has been identified as a highly mechanoresponsive nuclear transport receptor (NTR). However, its role in regulating tension-induced osteogenesis during OTM and its underlying mechanism remains elusive. In the present study, cyclic tensile strain and a rat OTM model were used to investigate the role of IPO7. The results revealed that IPO7 was significantly expressed both in vitro and in vivo following exposure to mechanical stretch. Moreover, IPO7 knockdown inhibited tension-induced osteogenesis in BMSCs. Upon mechanical force stimulation, IPO7 translocated from the cytoplasm to the nucleus. Furthermore, immunoprecipitation (IP) coupled with mass spectrometry (MS) was performed and demonstrated that RUNX2 was one of the IPO7-interacting proteins related to osteogenesis. Although RUNX2 has been established to translocate to the nucleus to facilitate osteogenesis, whether it is IPO7 that regulate RUNX2 nuclear input during tension-induced osteogenesis remains to be determined. Then, the interaction between IPO7 and RUNX2 was further validated via co-immunoprecipitation (co-IP) and colocalization assays in BMSCs using immunofluorescence. Taken together, this study demonstrates that IPO7 promotes tension-induced osteogenesis by regulating the nucleoplasmic localization of RUNX2. Thus, targeting IPO7 may represent a prospective therapeutic strategy for enhancing alveolar bone remodeling and the efficacy of orthodontic treatment.

2025-10-06 | PXD061760 | Pride

Fgf9 promotes adipogenesis and reduces osteogenesis by regulating mesenchymal stromal cells differentiation in adult bone marrow

Project description:In this study, we found that Fgf9 regulates the bone-fat balance by modulating the cell fate determination of BMSCs. Histology and micro-CT analysis demonstrate that Fgf9 S99N mutation (loss-of-function) significantly inhibited the formation of bone marrow adipose tissue (BMAT) in adult mice and alleviated the ovariectomized (OVX) induced bone loss and BMAT accumulation. In vitro cytodifferentiation assays unveiled that the Fgf9 S99N mutation hindered adipogenesis while promoting osteogenesis in BMSCs. Furthermore, recombinant FGF9 stimulation and Fgf9 overexpression in BMSCs demonstrated that Fgf9 significantly promoted adipocyte formation and inhibited osteogenesis in vitro and in vivo. Cytodifferentiation assays at various stages of BMSC differentiation indicated that FGF9 altered the osteogenic and adipogenic potential of BMSCs, particularly during the early stages of differentiation. Transcriptomic and gene expression analyses demonstrated that FGF9 significantly upregulated the expression of adipogenic genes while downregulating osteogenic gene expression at both mRNA and protein levels. KEEG analysis revealed and in vitro differentiation assays with specific inhibitors confirmed that FGF9 modulated bone-fat balance by inhibiting osteogenesis via the MAPK/ERK pathway and promoting adipogenesis by activating the PI3K/AKT and Hippo pathways.

2024-07-17 | GSE252394 | GEO

BMSC-derived exosomal miR-27a-3p and miR-196b-5p regulate bone remodeling in ovariectomized rats

Project description:BMSC-derived exosomes from ovariectomized rats (OVX-Exo) and sham-operated rats (Sham-Exo) were co-cultured with bone marrow-derived macrophages to study their effects on osteoclast differentiation. Next-generation sequencing was utilized to identify the differentially expressed miRNAs (DE-miRNAs) in OVX-Exo and Sham-Exo, while target genes were analyzed using bioinformatics. The regulatory effects of miR-27a-3p and miR-196b-5p on osteogenic differentiation of BMSCs and osteoclast differentiation were verified by gain-of-function and loss-of-function analyses.Osteoclast differentiation was significantly enhanced in the OVX-Exo treatment group compared to the Sham-Exo group. Twenty DE-miRNAs were identified in OVX-Exo and Sham-Exo, among which miR-27a-3p and miR-196b-5p promoted the expressions of osteogenic genes in BMSCs. In contrast, knockdown of miR-27a-3p and miR-196b-5p increased the expressions of osteoclastic genes in osteoclasts. These 20 DE-miRNAs were found to target 11435 mRNAs. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses revealed that these target genes were involved in several biological processes and osteoporosis-related signaling pathways.

2022-07-07 | GSE197085 | GEO

LPS preconditioning enhances the therapeutic efficacy of MSC-derived exosomes in sepsis by altering miRNA expression profile

Project description:Studies have shown that stimulation of Mesenchymal stem cells (MSCs) with biophysical or biochemical cues could influence the contents and biological activities of subsequent MSC-derived exosomes. However, the underlying mechanisms have not been fully clarified. Here, we pretreated MSCs with lipopolysaccharide (LPS) and evaluated exosomes (LPS-Exo) therapeutic effects in sepsis. Analysis of exosomes activity revealed that LPS-Exo treatment improved sepsis to a greater extent than normal MSCs-derived exosomes (Exo). Further analysis revealed that LPS-Exo exert their protective effects mainly through RNA contents. Thus, we hypothesized that LPS preconditioning enhances the therapeutic efficacy of LPS-Exo in sepsis by altering miRNA expression profile.

2024-05-16 | GSE261810 | GEO

Carboxypeptidase M modulates BMSCs osteogenesis-adipogenesis via the MAPK/ERK pathway: An integrated single-cell and bulk transcriptomic study

Project description:The pathogenesis of osteoporosis (OP) is closely associated with the disrupted balance between osteogenesis and adipogenesis in bone marrow-derived mesenchymal stem cells (BMSCs). We analyzed published single-cell RNA sequencing (scRNA-seq) data to dissect the transcriptomic profiles of bone marrow-derived cells in OP, reviewing 56,377 cells across eight scRNA-seq datasets from femoral heads (osteoporosis or osteopenia n=5, osteoarthritis n=3). Seventeen genes, including carboxypeptidase M (CPM), were identified as key osteogenesis-adipogenesis regulators through comprehensive gene set enrichment, differential expression, regulon activity, and pseudotime analyses. In vitro, CPM knockdown reduced osteogenesis and promoted adipogenesis in BMSCs, while adenovirus-mediated CPM overexpression had the reverse effects. In vivo, intraosseous injection of CPM-overexpressing BMSCs mitigated bone loss in ovariectomized mice. Integrated scRNA-seq and bulk RNA sequencing analyses provided insight into the MAPK/ERK pathway's role in the CPM-mediated regulation of BMSC osteogenesis and adipogenesis; specifically, CPM overexpression enhanced MAPK/ERK signaling and osteogenesis. In contrast, the ERK1/2 inhibitor binimetinib negated the effects of CPM overexpression. Overall, our findings identify CPM as a pivotal regulator of BMSC differentiation, which provide new clues for the mechanistic study of OP.

2023-12-14 | GSE249471 | GEO

The gene expression profiles of human bone marrow stromal cells derived from multiple myeloma patients

Project description:Bone marrow stromal cells (BMSCs) and their exosomes are a promising area of cancer therapy. Multiple myeloma (MM) is refractory hematologic malignancy. Bone marrow stromal cells (BMSCs) interact with MM cells in the bone marrow (BM), and also create a permissive microenvironment for MM cell growth and survival. Recent evidence indicated that exosome-mediated MM cell-BMSC communication plays an important role in the MM microenvironment. In this study, we investigated the biological property of the exosomes and exosomal miRNAs derived from BMSCs, aiming to establish the emerging strategies to target MM microenvironment to prevent tumor growth and spread.

2018-07-14 | GSE108915 | GEO

Expression profiling in exosomal miRNAs of human bone marrow stromal cells derived from multiple myeloma patients

2018-06-08 | GSE110271 | GEO

Expression profiling in cellular miRNAs of human bone marrow stromal cells derived from multiple myeloma patients

Project description:Bone marrow stromal cells (BMSCs) and their exosomes are a promising area of cancer therapy. Multiple myeloma (MM) is a refractory hematologic malignancy. Bone marrow stromal cells (BMSCs) interact with MM cells in the bone marrow (BM), and also create a permissive microenvironment for MM cell growth and survival. Recent evidence indicated that exosome-mediated MM cell-BMSC communication plays an important role in the MM microenvironment. In this study, we investigated the biological property of the exosomes and exosomal miRNAs derived from BMSCs, aiming to establish the emerging strategies to target MM microenvironment to prevent tumor growth and spread.

2018-06-08 | GSE110238 | GEO

Project description:Bone marrow mesenchymal stem cells (BMSCs), Osteogenesis, Osteoporosis

| PRJNA1172916 | ENA

Differential gene expression of static and intermittent compressive force treated human periodontal ligament cells

Project description:Mechanical force has been shown to regulate periodontal ligament cells (PDLs) behaviors. However, different force types lead to distinct PDLs’ responses. Here, the differential gene expression profiling of PDLs subjected to static and intermittent compressive forces was examined using RNA sequencing technique. Results demonstrated that the static and intermittent compressive force treated PDLs exhibited the differential regulation genes. KEGG pathway enrichment analysis revealed that focal adhesion and transforming growth factor beta signaling pathway were commonly upregulated while calcium signaling pathway was downregulated in both static and intermittent compressive force-treated PDLs. Interestingly, Wnt signaling pathway was upregulated only in the PDLs that subjected to the intermittent compressive force.

2019-07-23 | GSE112122 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data