Gene description for SPP1
Gene name secreted phosphoprotein 1
Gene symbol SPP1
Other names/aliases BNSP
BSPI
ETA-1
OPN
Species Homo sapiens
 Database cross references - SPP1
ExoCarta ExoCarta_6696
Vesiclepedia VP_6696
Entrez Gene 6696
HGNC 11255
MIM 166490
UniProt P10451  
 SPP1 identified in exosomes derived from the following tissue/cell type
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Ovarian cancer cells 23333927    
Ovarian cancer cells 23333927    
 Gene ontology annotations for SPP1
Molecular Function
    cytokine activity GO:0005125 IEA
    extracellular matrix binding GO:0050840 IEA
    protein binding GO:0005515 IPI
Biological Process
    extracellular matrix disassembly GO:0022617 TAS
    inflammatory response GO:0006954 IEA
    response to vitamin D GO:0033280 IDA
    cell adhesion GO:0007155 IEA
    osteoblast differentiation GO:0001649 IEA
    extracellular matrix organization GO:0030198 TAS
    decidualization GO:0046697 TAS
    positive regulation of cell-substrate adhesion GO:0010811 IEA
    response to steroid hormone GO:0048545 IEA
    neutrophil chemotaxis GO:0030593 IEA
    negative regulation of collateral sprouting of intact axon in response to injury GO:0048685 IEA
    positive regulation of bone resorption GO:0045780 IEA
    biomineral tissue development GO:0031214 IEA
    embryo implantation GO:0007566 TAS
Subcellular Localization
    extracellular space GO:0005615 IDA
    perinuclear region of cytoplasm GO:0048471 IEA
    apical part of cell GO:0045177 IEA
    extracellular exosome GO:0070062 IDA
    extracellular region GO:0005576 TAS
    cell projection GO:0042995 IEA
 Experiment description of studies that identified SPP1 in exosomes
1
Experiment ID 489
MISEV standards
✔
EM
EV Biophysical techniques
✔
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
EV Enriched markers
✔
Canx
EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 36408942    
Organism Rattus norvegicus
Experiment description Quantitative proteomic analysis of exosomes from umbilical cord mesenchymal stem cells and rat bone marrow stem cells
Authors Xu X, Yin F, Guo M, Gan G, Lin G, Wen C, Wang J, Song P, Wang J, Qi ZQ, Zhong CQ.
Journal name Proteomics
Publication year 2023
Sample Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 6
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
2
Experiment ID 490
MISEV standards
✔
EM
EV Biophysical techniques
✔
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
EV Enriched markers
✔
Canx
EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 36408942    
Organism Rattus norvegicus
Experiment description Quantitative proteomic analysis of exosomes from umbilical cord mesenchymal stem cells and rat bone marrow stem cells
Authors Xu X, Yin F, Guo M, Gan G, Lin G, Wen C, Wang J, Song P, Wang J, Qi ZQ, Zhong CQ.
Journal name Proteomics
Publication year 2023
Sample Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 7
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
3
Experiment ID 491
MISEV standards
✔
EM
EV Biophysical techniques
✔
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
EV Enriched markers
✔
Canx
EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 36408942    
Organism Rattus norvegicus
Experiment description Quantitative proteomic analysis of exosomes from umbilical cord mesenchymal stem cells and rat bone marrow stem cells
Authors Xu X, Yin F, Guo M, Gan G, Lin G, Wen C, Wang J, Song P, Wang J, Qi ZQ, Zhong CQ.
Journal name Proteomics
Publication year 2023
Sample Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 8
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
4
Experiment ID 492
MISEV standards
✔
EM
EV Biophysical techniques
✔
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
EV Enriched markers
✔
Canx
EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 36408942    
Organism Rattus norvegicus
Experiment description Quantitative proteomic analysis of exosomes from umbilical cord mesenchymal stem cells and rat bone marrow stem cells
Authors Xu X, Yin F, Guo M, Gan G, Lin G, Wen C, Wang J, Song P, Wang J, Qi ZQ, Zhong CQ.
Journal name Proteomics
Publication year 2023
Sample Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 9
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
5
Experiment ID 211
MISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101|Alix|EpCAM|TFRC
EV Enriched markers
✔
cytochrome c|GOLGA2
EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23333927    
Organism Homo sapiens
Experiment description Characterization and proteomic analysis of ovarian cancer-derived exosomes.
Authors Liang B, Peng P, Chen S, Li L, Zhang M, Cao D, Yang J, Li H, Gui T, Li X, Shen K.
Journal name J Proteomics
Publication year 2013
Sample Ovarian cancer cells
Sample name IGROV1
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.09-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
6
Experiment ID 212
MISEV standards
✔
CEM
EV Biophysical techniques
✔
TSG101|Alix|EpCAM|TFRC
EV Enriched markers
✔
Cytochrome C|GOLGA2
EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23333927    
Organism Homo sapiens
Experiment description Characterization and proteomic analysis of ovarian cancer-derived exosomes.
Authors Liang B, Peng P, Chen S, Li L, Zhang M, Cao D, Yang J, Li H, Gui T, Li X, Shen K.
Journal name J Proteomics
Publication year 2013
Sample Ovarian cancer cells
Sample name OVCAR-3
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.09-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for SPP1
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 SGTA 6449
Two-hybrid Homo sapiens
2 ITGAV 3685
Invitro Homo sapiens
Invivo Homo sapiens
3 CD44 960
Invitro Homo sapiens
Affinity Capture-MS Homo sapiens
4 ITGA5 3678
Affinity Capture-MS Homo sapiens
Reconstituted Complex Homo sapiens
5 PDLIM7 9260
Two-hybrid Homo sapiens
6 IGFBP5 3488
Affinity Capture-MS Homo sapiens
Reconstituted Complex Homo sapiens
7 CTNNBL1 56259
Two-hybrid Homo sapiens
View the network image/svg+xml
 Pathways in which SPP1 is involved
PathwayEvidenceSource
Degradation of the extracellular matrix TAS Reactome
Integrin cell surface interactions TAS Reactome
Signaling by PDGF TAS Reactome





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