PLGF/PIGF2/PGF human

Placental growth factor (PLGF) exists in two isoforms namely PLGF1 and PLGF2. This protein is a homodimeric glycoprotein with molecular weight of 46–50kDa and is a member of the VEGF (vascular endothelial growth factor) subfamily. PLGF is encoded by the gene mapped to human chromosome 14q24-q31 regions. PLGF is expressed mainly in the placental trophoblast during pregnancy and is also present in various other tissues such as the villous trophoblast.

PLGF might enhance the production of peripheral blood mononuclear cell-vascular endothelial growth factor (PBMC-VEGF). Consequently, PlGF might facilitate VEGF production in the inflammatory joint. Soluble fms related tyrosine kinase 1 (Flt-1), which is considered to be an anti-angiogenic factor interacts with and inhibit the activity of PLGF. Therefore, PLGF level is lowered and the Flt-1 level is increased in placental tissue of women with pre-eclampsia (PE). PLGF is associated with the pathogenesis of rheumatoid arthritis (RA) and various other arthropathies. PLGF acts as a ligand for VEGFR-1 and is implicated in various physiological functions such as tumor angiogenesis, wound healing and hematopoietic progenitors recruitment.

Lyophilized from 0.22 μm filtered solution in PBS. Generally 5-8% Mannitol or trehalose is added as a protectant before lyophilization.

Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 μg/mL. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.