The GHRHR Antibody, FITC conjugated is a fluorescently labeled antibody designed to target the Growth Hormone-Releasing Hormone Receptor (GHRHR), a key regulator of growth hormone secretion in the pituitary gland. The antibody is conjugated with Fluorescein Isothiocyanate (FITC), a green-fluorescing dye commonly used in fluorescence microscopy and flow cytometry.
Key Specifications (from product datasheets):
Host Species: Rabbit (polyclonal)
Reactivity: Human, Mouse, Rat
Conjugation: FITC (excitation: 494 nm, emission: 518 nm)
Applications: Immunocytochemistry (ICC), Immunofluorescence (IF)
Formulation: 0.01M TBS (pH 7.4) with 1% BSA, 0.03% Proclin300, and 50% glycerol .
This antibody is primarily used to study GHRHR expression and localization in cellular models. Its applications include:
Immunofluorescence: Visualizing GHRHR in pituitary somatotrophs or other cell types .
Flow Cytometry: Quantifying receptor expression on cell surfaces, particularly in immune cells (e.g., Th17 cells) .
Co-localization Studies: Investigating interactions between GHRHR and signaling proteins (e.g., JAK-STAT3 pathway) .
Recent studies highlight the antibody’s utility in diverse research contexts:
GHRHR signaling enhances Th17 cell differentiation and promotes autoimmune inflammation via STAT3 activation. FITC-conjugated antibodies were used to confirm receptor expression in Th17 cells .
GHRHR antagonists (e.g., GHRHAnt JV-1-36) mitigate barrier dysfunction in endothelial cells by reducing FITC-dextran permeability. This model underscores GHRHR’s role in vascular integrity .
X-aptamers targeting GHRHR were validated using co-immunofluorescence assays with FITC-conjugated secondary antibodies, demonstrating high affinity (Kd: 1.21–4.75 nM) .
A related GHRHR antibody (MAB107352) detected a specific band at ~48 kDa in human cancer cell lysates, confirming the receptor’s expression in adenocarcinoma and leukemia models .