產品名稱：IGFBP-2 rat/mouse
產    地：Demeditec 
產品貨號：DEE008
產品規格：96 Tests
產品說明：
Special remarks: This testkit should be used only for diluted murine serum samples.
General: Insulin-like growth factors (IGFs) regulate the proliferation, differentation, apoptosis, cell adhesion and metabolism in various tissues and cell types. The IGF-I, which is produced mainly in liver under the influence of Growth Hormone (GH), regulates as hormone the linear growth of the bones and the process of sexual maturity, while IGF-II is mainly a growth factor of foetal tissue (11-13). The biological actions of IGF over the IGF-Type-I receptor are modulated variably through the IGF binding proteins (IGFBP-1 to-6) (14). IGFBP-2 is, after IGFBP-3, the second most frequent IGFBP in the human blood. IGFs, especially tumor typical pro-IGF-forms and hormones regulate the expression of IGFBP-2, GH effect is thereby inhibiting. At cellular level IGFBP-2 seems to stimulate the proliferation and dissemination of solid tumors via an IGF-independent mechanism.
Physiology: IGFBP-2 is an unglycosylated polypetide of 31.3 kDa, which forms binary IGF-complexes and shows no circadian rhythm in the circulation.
The serum concentration of IGFBP-2 increases in fasting, after major surgery and after trauma, but the increasing of the concentration is most intensive in malignant diseases. The correlation of the IGFBP-2 level to the degree of progression is a striking feature in various tumor types as is the normalization of the IGFBP-serum levels after remission (5-10). During the GH-therapy, e.g. in short stature and in GH-abuse (doping) the IGFBP-2 level decreases. In Trisomy 18  IGFBP-2 in maternal serum is decreased and IGFBP-1 is increased; therefore the ratio IGFBP-2 /IGFBP-1 is a marker for this chromosome abnormality.
Transgenic organisms are a good opportunity to investigate the function of genes or proteins. The mouse or rat model is a well-suited system for investigation of the relevance of IGFBP-2 in physiological and pathological processes. Over expression of the IGFBP-2 gene in mice results in a weight reduction of 30% in spleen and moderately reduced weight in other organs. Effects of IGFBP-2 on the organism can be compensated through the modified expression of other IGF-Binding proteins.
Especially in tumor biology the mouse and rat systems enable investigation of the systemic relevance of IGFBP-2. IGFBP-2 influences tumor cells as it induces catalase activity in adrenocortical cells. Furthermore IGFBP-2 interacts with tumor cells via its RGD-amino acid sequence and seems to stimulate cell invasion of glioma cells.
Intended use: This IGFBP-2 Enzyme Immunoassay-Kit is suited for quantitative determination of IGFBP-2 in mouse and rat serum for scientific purposes. 
Assay characteristics: The ELISA for IGFBP-2 utilizes two different specific high affinity polyclonal antibodies for this protein. The ELISA recognizes quantitatively mouse and rat IGFBP-2 and is unaffected by an excess of IGF-l or IGF-II levels. Related molecules such as lGFBP-3 show no cross-reactions in the assay.
The standards are prepared of recombinant mouse-IGFBP-2
上海玉博生物技術有限公司在為生命科學領域提供豐富的產品與信息資源方面處于****地位，公司提供的產品涵蓋了二十多個國家近五十萬種產品，而且產品的數量與信息在不斷的增長和更新，公司提供的產品能夠使生命科學工作者加快對生物化學，分子生物學，細胞生物學以及蛋白質組學研究的認知，以及分子診斷和臨床醫學領域的應用。

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