VEGF Rat

Vascular Endothelial Growth Factor Rat Recombinant
Cat. No.
BT8266
Source
Escherichia Coli.
Synonyms
Vascular endothelial growth factor A, VEGF-A, Vascular permeability factor, VPF, VEGF, MGC70609.
Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Purity
Greater than 97.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.
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.
Shipped with Ice Packs
In Stock

Description

Vascular Endothelial Growth Factor Rat Recombinant produced in E.Coli is a double, non-glycosylated, polypeptide chain containing 165 amino acids and having a molecular mass of 38,750 Dalton.
The VEGF is purified by proprietary chromatographic techniques.

Product Specs

Introduction
Vascular endothelial growth factor (VEGF) is a crucial signaling protein for vasculogenesis and angiogenesis. While primarily known for its effects on vascular endothelial cells, VEGF also influences other cell types like monocytes, macrophages, neurons, cancer cells, and kidney epithelial cells. VEGF promotes vascular permeability, angiogenesis, vasculogenesis, endothelial cell growth, and cell migration, while also inhibiting apoptosis. In vitro studies have demonstrated its ability to stimulate endothelial cell mitogenesis and migration. Additionally, VEGF acts as a vasodilator, enhances microvascular permeability, and was initially referred to as vascular permeability factor. Elevated VEGF levels are associated with POEMS syndrome (Crow-Fukase syndrome). Gene mutations related to VEGF have been linked to both proliferative and nonproliferative diabetic retinopathy.
Description
Recombinant Rat Vascular Endothelial Growth Factor, produced in E. coli, is a non-glycosylated polypeptide chain comprising 165 amino acids. It forms a dimer with a molecular weight of 38,750 Daltons. The purification process involves proprietary chromatographic techniques.
Physical Appearance
Sterile, white, lyophilized powder.
Formulation
The protein was lyophilized in 10mM sodium phosphate buffer, pH 7.5.
Solubility
Reconstitute the lyophilized Vascular Endothelial Growth Factor in sterile 18MΩ-cm H2O to a concentration of at least 100 µg/ml. This solution can be further diluted with other aqueous solutions.
Stability
Lyophilized Vascular Endothelial Growth Factor remains stable at room temperature for up to 3 weeks; however, it is recommended to store the desiccated product at temperatures below -18°C. After reconstitution, store VEGF at 4°C for a maximum of 2-7 days. For long-term storage, freeze at -18°C after adding a carrier protein (0.1% HSA or BSA). Avoid repeated freeze-thaw cycles.
Purity
Purity exceeds 97.0% as determined by: (a) Reverse-phase high-performance liquid chromatography (RP-HPLC) analysis. (b) Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis.
Biological Activity
Biological activity is determined by the dose-dependent stimulation of human umbilical vein endothelial cell (HUVEC) proliferation within a concentration range of 4.0-8.0 ng/ml.
Synonyms
Vascular endothelial growth factor A, VEGF-A, Vascular permeability factor, VPF, VEGF, MGC70609.
Source
Escherichia Coli.
Amino Acid Sequence
MAPTTEGEQK AHEVVKFMDV YQRSYCRPIE TLVDIFQEYP DEIEYIFKPS CVPLMRCAGC CNDEALECVP TSESNVTMQI MRIKPHQSQH IGEMSFLQHS RCECRPKKDR TKPEKHCEPC SERRKHLFVQ DPQTCKCSCK NTDSRCKARQ LELNERTCRC DKPRR.

Product Science Overview

Introduction

Vascular Endothelial Growth Factor (VEGF) is a signal protein that stimulates the formation of blood vessels. It is a crucial factor in both physiological and pathological angiogenesis. VEGF is known for its role in promoting the growth of new blood vessels during embryonic development, after injury, and in response to muscle exercise. It also plays a significant role in the formation of new blood vessels in tumors, which is essential for their growth and metastasis.

Structure and Function

VEGF is a glycosylated mitogen that specifically acts on endothelial cells. It has several isoforms, with VEGF-A being the most studied. VEGF-A is involved in mediating increased vascular permeability, inducing angiogenesis and vasculogenesis, promoting endothelial cell growth, and inhibiting apoptosis. The protein binds to tyrosine kinase receptors on the surface of endothelial cells, primarily VEGFR-1 (Flt-1) and VEGFR-2 (Flk-1/KDR), which triggers a cascade of downstream signaling pathways that promote cell proliferation, migration, and survival .

Recombinant VEGF

Recombinant VEGF, including rat recombinant VEGF, is produced using recombinant DNA technology. This involves inserting the gene encoding VEGF into a suitable expression system, such as bacteria, yeast, or mammalian cells, which then produce the protein. Recombinant VEGF is used in various research and therapeutic applications, including studies on angiogenesis, cancer, and cardiovascular diseases .

Role in Angiogenesis

VEGF is a key regulator of angiogenesis, the process by which new blood vessels form from pre-existing vessels. This process is vital for normal development and wound healing. In pathological conditions, such as cancer, excessive angiogenesis can occur, leading to tumor growth and metastasis. VEGF promotes angiogenesis by binding to its receptors on endothelial cells, stimulating their proliferation and migration, and increasing vascular permeability .

Therapeutic Applications

Due to its critical role in angiogenesis, VEGF has been a target for therapeutic interventions. Anti-VEGF therapies, such as monoclonal antibodies and small molecule inhibitors, have been developed to treat various cancers by inhibiting tumor angiogenesis. Additionally, VEGF-based therapies are being explored for their potential to promote blood vessel growth in ischemic tissues, such as in heart disease and peripheral artery disease .

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