The product is a non-glycosylated recombinant methionyl human stem cell factor. It is a 166 amino acid protein produced by E. coli with an amino acid sequence that is identical to the natural sequence predicted from human DNA sequence analysis, except for the addition of an N-terminal methionine.
<0.001 EU per 1 μg of the peptide by the LAL method
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 2-8 °C for 1 week. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
The product, in combination with filgrastim, is indicated for the setting of autologous peripheral blood progenitor cell transplantation in patients at risk of poor peripheral blood progenitor cell mobilisation. The use of ancestim with filgrastim will generate a sustained increase in the number of peripheral blood progenitor cells capable of engraftment. It is used for mobilization of progenitor cells from the bone marrow to the peripheral blood with or withouth mobilizing chemotherapy. The harvested progenitor cells can be used for transplant following myelosuppressive or myeloablative therapies.
The product action on hemotopeitic progenitor cells stimulates its proliferation, differentiation, commitment and functional activation. This stimulation results in an increase on circulating peripheral blood progenitor cells like CD34, granulocyte macrophage colony-forming units and erythroid burst-forming units.
Mechanism of action:
Ancestim alone is unable to increase peripheral blood progenitor cells so it has to be administered with filgastrim, a granulocyte colony-stimulating factor. Ancestrim will bind to the c-KIT expressed in hemocytoblasts, myeloid progenitors, megakaryocytes, immature mast cells, myeloblasts and lymphoid progenitors. Ancestim binding will cause receptor homodimerization and autophosphorylation at tyrosine residues. The activation of this receptor leads to the activation of a signaling cascade that contains the RAS/ERK, PI3-Kinase, Src kinase and JAK/STAT pathways which will later stimulate proliferation, differentiation and activation of the cell lines.
For research use only. Not intended for any clinical use. No products from Creative BioMart may be resold, modified for resale or used to manufacture commercial products
without prior written approval from Creative BioMart.
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