About   Help   FAQ
Gene Expression Data
Assay Details
Assay
Reference: J:23708 Wordinger RJ, et al., The immunolocalization of basic fibroblast growth factor in the mouse uterus during the initial stages of embryo implantation. Growth Factors. 1994;11(3):175-86
Assay type: Immunohistochemistry
MGI Accession ID: MGI:5633879
Gene symbol: Fgf2
Gene name: fibroblast growth factor 2
Antibody: Anti-basic FGF
Detection system: Biotinylated secondary antibody/[Strept]avidin coupled to horseradish peroxidase
Assay notes: Two antibodies were described. Authors state the antibodies resulted in identical localization patterns. Results were reported together without specifying which antibody was used. See also MGI:5633878 for details of the second antibody.
Results
Specimen 1: postnatal adult (more )
Note: Specimen was from interimplantation site on day 6.5 of pregnancy.
Structure Level Pattern Image Note
TS28: uterus Present Regionally restricted 1 Expression was detected in the inter-implantation sites. Expression was detected in basal laminae associated with the uterine lumen, glandular epithelial cells, endothelial cells of vascular elements and the mesothelial covering of the uterus.
TS28: uterus stroma Present Regionally restricted 1 Expression was detected in the extracellular matrix of the uterine stroma.
TS28: endometrium glandular epithelium Absent 1
TS28: uterus lumen Absent 1
TS28: endometrium luminal epithelium Present Diffuse 1
TS28: myometrium inner circular smooth muscle layer Present 1
TS28: myometrium outer longitudinal smooth muscle layer Present 1
TS28: adventitia of uterus Present Regionally restricted 1 Expression was detected in the extracellular matrix of the perimetrium.

Specimen 2,3 uterine implantation site: postnatal adult (more )
Note: Specimen was at the implantation site on day 5.5 of pregnancy. A blastocyst was attached but trophoblast cell invasion hadn't begun.
Structure Level Pattern Image Note
TS28: endometrium luminal epithelium Present 2
TS28: uterus Present Regionally restricted 3 , 2 The residual luminal basal lamina stained positive.

Specimen 2,3 blastocyst: embryonic day 5.5 (more )
Note: Specimen was the hatched, non-invasive blastocyst.
Structure Level Pattern Image Note
TS6: blastocyst Absent 2 , 3 There was little or no staining within the hatched, non-invasive blastocyst.

Specimen 4,5: embryonic day 6.5-7.5 (more )
Structure Level Pattern Image Note
TS10: embryo Present 4 , 5
TS10: ectoplacental cone Present Diffuse 4 , 5

Specimen 4,5 decidua: postnatal adult (more )
Note: Specimen was at the implantation site on day 6.5-7.5 of pregnancy.
Structure Level Pattern Image Note
TS28: decidua Present Regionally restricted 5 , 4 There was no expression in the primary decidual zone. Expression was detected in the secondary decidual zone.
TS28: uterus stroma Present 4 Expression was in the extracellular matrix.

Specimen 6: postnatal adult (more )
Note: Specimen was the secondary decidual zone on day 8.5 of pregnancy.
Structure Level Pattern Image Note
TS28: decidua Present Regionally restricted 6 Expression was detected in the secondary decidual zone in a pericellular fashion surrounding individual decidual cells. Basal laminae associated with blood vessels were also positive.

Specimen 7: embryonic day 8.5 (more )
Structure Level Pattern Image Note
TS13: embryo Present 7
TS13: ectoplacental cone Absent 7

Specimen 7 uterus: postnatal adult (more )
Note: Specimen was the developing mesometrial region on day 8.5 of pregnancy.
Structure Level Pattern Image Note
TS28: decidua Present Regionally restricted 7 Decidual cells in the mesometrial region contained diffuse cytoplasmic staining.
TS28: mesometrium Present Regionally restricted 7 Decidual cells in the mesometrial region contained diffuse cytoplasmic staining.

Specimen 8: embryonic day 8.5 (more )
Structure Level Pattern Image Note
TS13: embryo Present 8
TS13: trophoblast giant cell Absent 8 Lateral giant trophoblast cells were negative.

Specimen 8 uterus: postnatal adult (more )
Note: Specimen was the primary decidual zone on day 8.5 of pregnancy.
Structure Level Pattern Image Note
TS28: decidua Present Regionally restricted 8 Expression was detected in the regressing primary decidual zone in the cell cytoplasm and small amounts in extracellular spaces.


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
12/30/2025
MGI 6.24
The Jackson Laboratory