人血管内皮生长因子/Human VEGF-CHO

VEGF Human, CHO
Vascular Endothelial Growth Factor Human Recombinant, CHO
人血管内皮生长因子
Catalog No. CYT-260

Synonyms:
Vascular endothelial growth factor A, VEGF-A, Vascular permeability factor, VPF, VEGF, MGC70609.

Introduction:
Vascular endothelial growth factor is an important signaling protein involved in both vasculogenesis and angiogenesis. As its name implies, VEGF activity has been mostly studied on cells of the vascular endothelium, although it does have effects on a number of other cell types （e.g. stimulation monocyte/ macrophagemigration, neurons, cancer cells, kidney epithelial cells ）. VEGF mediates increased vascular permeability, induces angiogenesis, vasculogenesis and endothelial cell growth, promotes cell migration, and inhibits apoptosis. In vitro, VEGF has been shown to stimulate endothelial cell mitogenesisand cell migration. VEGF is also a vasodilator and increases microvascular permeability and was originally referred to as vascular permeability factor.
Elevated levels of this protein are linked to POEMS syndrome, also known as Crow-Fukase syndrome. Mutations in this gene have been associated with proliferative and nonproliferative diabetic retinopathy.

Description:
Vascular Endothelial Growth Factor Human Recombinant produced in CHO cells is a double, glycosylated, polypeptide chain containing 165 amino acids and migrates as 44 kDa in SDS-PAGE under non-reducing conditions.
The VEGF is purified by proprietary chromatographic techniques.

Source:
Chinese Hamster Ovarian Cell

Physical Appearance:
Sterile Filtered White lyophilized （freeze-dried） powder.

Formulation:
The protein was lyophilized from a Phosphate- Buffered Saline, pH 7.4.

Solubility:
It is recommended to reconstitute the lyophilized Vascular Endothelial Growth Factor Human in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

Stability:
Lyophilized Vascular Endothelial Growth Factor Human although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution VEGF Human Recombinant should be stored at 4°C between 2-7 days and for future use below -18°C.
For long term storage it is recommended to add a carrier protein （0.1% HSA or BSA）.
Please prevent freeze-thaw cycles.

Purity:
Greater than 97.0% as determined by:
（a） Analysis by RP-HPLC.
（b） Analysis by SDS-PAGE.

Biological Activity:
Determined by its ability to stimulate ³H-Thymidine incorporation in human ublical vein endothelial cells, the ED₅₀ for this effect was found to be 2-6 ng/ml.

Usage:
Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

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