The SULF1 Antibody, FITC conjugated, is a rabbit-derived polyclonal antibody chemically linked to fluorescein isothiocyanate (FITC), enabling fluorescence-based detection methods. Key attributes include:
This antibody is validated for multiple immunoassays:
Enzyme-Linked Immunosorbent Assay (ELISA): Detects soluble SULF1 in plasma or cell culture media .
Immunohistochemistry (IHC): Localizes SULF1 in formalin-fixed paraffin-embedded tissues (e.g., melanoma biopsies) .
Western Blot (WB): Identifies SULF1 at ~101 kDa in lysates from HT-1080 cells or mouse tissues .
| Application | Dilution Range |
|---|---|
| WB | 1:500–1:5,000 |
| IHC | 1:50–1:500 |
| ELISA | Manufacturer-specific optimization required |
Anti-Tumor Activity: SULF1 overexpression in melanoma cells inhibits AKT phosphorylation, reduces nuclear import of CDK4, and induces apoptosis, retarding tumor growth in xenograft models .
Biomarker Potential: Plasma SULF1 levels are being investigated as a diagnostic marker for early cancer detection .
SULF1 desulfates HSPGs, disrupting growth factor signaling (e.g., HB-EGF/EGFR and HGF/c-MET pathways) .
In melanoma, SULF1 loss correlates with increased proliferation and chemoresistance, while its restoration suppresses AKT-mediated survival pathways .
Polyclonal vs. Monoclonal: While monoclonal antibodies (e.g., clone 4-C25) offer high specificity, polyclonal FITC-conjugated SULF1 antibodies provide broader epitope recognition, enhancing detection in heterogeneous samples .
Versatility: Suitable for multiplex assays due to FITC’s compatibility with standard fluorescence detection systems .