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背景介绍 G-CSF is secreted by monocytes, macrophages, and neutrophils after cell activation. It is produced also by stromal cells, fibroblasts, and endothelial cells, epithelial carcinomas, acute myeloid leukemia cells and various tumor cell lines. The synthesis of G-CSF can be induced by bacterial endotoxins, TNF, IL1 and GM-CSF. Comparison of the primary sequence of G-CSF with those of the two other colony stimulating factors, GM-CSF and M-CSF, shows that the three factors are not related to each other. Murine and human G-CSF show a sequence homology of approximately 70% at the DNA level and of 72% at the protein level. The G-CSF receptor, CD114, is expressed on all cells of the neutrophils and granulocytes lineage, as well as placenta cells, endothelial cells and various carcinoma cell lines .Human G-CSF is active in murine cells and vice versa. G-CSF stimulates the proliferation and differentiation of hematopoietic progenitor cells committed to the neutrophils and granulocytes lineage in a dose-dependent manner. G-CSF synergises with some other cytokines, including GM-CSF and IL-4, for example, GM-CSF and G-CSF are required to develop neutrophilic colonies in vitro. The concerted action of G-CSF and Epo is required to support the growth of mixed colonies of the early erythroid progenitors. A combination of IL-4 with G-CSF has been shown to lead to synergistic suppression of the growth of some human leukemic cell lines. 产品介绍 Recombinant GCSF is a disulfide-linked monomer protein consisting of 175 amino acid residues, and migrates as an approximately 19 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding Human G-CSF mature chain was expressed in E. coli.
询价背景介绍 Follicle stimulating hormone (FSH) is a hormone synthesised and secreted by gonadotropes in the anterior pituitary gland. FSH and LH act synergistically in reproduction. In women, in the ovary, FSH stimulates the growth of immature Graafian follicles to maturation. As the follicle grows it releases inhibin, which shuts off the FSH production. In men, FSH enhances the production of androgen- binding protein by the Sertoli cells of the testes and is critical for spermatogenesis. In both males and females, FSH stimulates the maturation of germ cells. In females, FSH initiates follicular growth, specifically affecting granulosa cells. With the concomitant rise in inhibin B, FSH levels then decline in the late follicular phase. This seems to be critical in selecting only the most advanced follicle to proceed to ovulation. At the end of the luteal phase, there is a slight rise in FSH that seems to be of importance to start the next ovulatory cycle. Like its partner LH, FSH release at the pituitary gland is controlled by pulses of gonadotropin- releasing hormone(GnRH). Those pulses, in turn, are subject to the estrogen feed-back from the gonads. 产品介绍 Follicle stimulating hormone is a glycoprotein with molecular mass of 30 kDa. FSH is a heterodimeric hormone consisting of 92 amino acids alpha chain and 111 amino acids beta chain. Optimized DNA sequence encoding Human FSH mature chain was expressed in Chinese Hamster Ovary (CHO) cells.
询价背景介绍 Follicle stimulating hormone (FSH) is a hormone synthesised and secreted by gonadotropes in the anterior pituitary gland. FSH and LH act synergistically in reproduction. In women, in the ovary, FSH stimulates the growth of immature Graafian follicles to maturation. As the follicle grows it releases inhibin, which shuts off the FSH production. In men, FSH enhances the production of androgen- binding protein by the Sertoli cells of the testes and is critical for spermatogenesis. In both males and females, FSH stimulates the maturation of germ cells. In females, FSH initiates follicular growth, specifically affecting granulosa cells. With the concomitant rise in inhibin B, FSH levels then decline in the late follicular phase. This seems to be critical in selecting only the most advanced follicle to proceed to ovulation. At the end of the luteal phase, there is a slight rise in FSH that seems to be of importance to start the next ovulatory cycle. Like its partner LH, FSH release at the pituitary gland is controlled by pulses of gonadotropin- releasing hormone(GnRH). Those pulses, in turn, are subject to the estrogen feed-back from the gonads. 产品介绍 Follicle stimulating hormone is a glycoprotein with molecular mass of 30 kDa. FSH is a heterodimeric hormone consisting of 92 amino acids alpha chain and 111 amino acids beta chain. Optimized DNA sequence encoding Human FSH mature chain was expressed in Chinese Hamster Ovary (CHO) cells.
询价背景介绍 FLT-3 ligand promotes long- term expansion and differentiation of human pro-B-cells in the presence of IL-7 or in combination of IL-7 and IL-3.The human FLT-3 ligand also stimulates the proliferation of cells expressing murine FLT-3 receptors. In combination with SCF and IL-3, FLT-3 ligand can cause expansion of cells with the marker spectrum CD34(+) CD38(-). Alone, FLT-3 ligand supports the survival of precursors in the lineage of blood-forming cells such as CFU-GM, CFU- GEMM, and the very primitive high proliferative potential colony-forming cells, HPP- CFC. flt-3 ligand only has marginal effects on progenitors for erythroid cells and megakaryocytes. 产品介绍 Recombinant FLT-3 Ligand is a disulfide-linked monomeric protein consisting of 156 amino acid residues, and migrates as an approximately 17 kDa protein under non-reducing conditions and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding human FLT-3 ligand mature chain was expressed in E. coli.
询价背景介绍 FLT-3 ligand promotes long- term expansion and differentiation of human pro-B-cells in the presence of IL-7 or in combination of IL-7 and IL-3.The human FLT-3 ligand also stimulates the proliferation of cells expressing murine FLT-3 receptors. In combination with SCF and IL-3, FLT-3 ligand can cause expansion of cells with the marker spectrum CD34(+) CD38(-). Alone, FLT-3 ligand supports the survival of precursors in the lineage of blood-forming cells such as CFU-GM, CFU- GEMM, and the very primitive high proliferative potential colony-forming cells, HPP- CFC. flt-3 ligand only has marginal effects on progenitors for erythroid cells and megakaryocytes. 产品介绍 Recombinant FLT-3 Ligand is a disulfide-linked monomeric protein consisting of 156 amino acid residues, and migrates as an approximately 17 kDa protein under non-reducing conditions and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding human FLT-3 ligand mature chain was expressed in E. coli.
询价背景介绍 FLT-3 ligand promotes long- term expansion and differentiation of human pro-B-cells in the presence of IL-7 or in combination of IL-7 and IL-3.The human FLT-3 ligand also stimulates the proliferation of cells expressing murine FLT-3 receptors. In combination with SCF and IL-3, FLT-3 ligand can cause expansion of cells with the marker spectrum CD34(+) CD38(-). Alone, FLT-3 ligand supports the survival of precursors in the lineage of blood-forming cells such as CFU-GM, CFU- GEMM, and the very primitive high proliferative potential colony-forming cells, HPP- CFC. flt-3 ligand only has marginal effects on progenitors for erythroid cells and megakaryocytes. 产品介绍 Recombinant FLT-3 Ligand is a disulfide-linked monomer protein consisting of 164 amino acid residues, and migrates as an approximately 32 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding mouse FLT-3 ligand mature chain was expressed in E. coli.
询价背景介绍 FLT-3 ligand promotes long- term expansion and differentiation of human pro-B-cells in the presence of IL-7 or in combination of IL-7 and IL-3.The human FLT-3 ligand also stimulates the proliferation of cells expressing murine FLT-3 receptors. In combination with SCF and IL-3, FLT-3 ligand can cause expansion of cells with the marker spectrum CD34(+) CD38(-). Alone, FLT-3 ligand supports the survival of precursors in the lineage of blood-forming cells such as CFU-GM, CFU- GEMM, and the very primitive high proliferative potential colony-forming cells, HPP- CFC. flt-3 ligand only has marginal effects on progenitors for erythroid cells and megakaryocytes. 产品介绍 Recombinant FLT-3 Ligand is a disulfide-linked monomer protein consisting of 164 amino acid residues, and migrates as an approximately 32 kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding mouse FLT-3 ligand mature chain was expressed in E. coli.
询价背景介绍 FGF-9 is an autocrine and paracrine prostatic growth factor expressed by prostatic stromal cells. FGF-9 induces osteoblast proliferation and new bone formation in a bone organ assay. FGF-9 is produced by many prostate cancer cells and contributes to prostate cancer-induced new bone formation and may participate in the osteoblastic progression of prostate cancer in bone. It is also an autocrine and/or paracrine neurotrophic factor that promotes the survival of motoneurons and upregulates choline acetyl-transferase activity. FGF-9 enhances survival of AChE-positive neurons, increasing their mean soma size. It also up-regulates their choline acetyltransferase activity as potently as NGF and the effect is greater than that elicited by bFGF, CNTF, or GDNF. FGF-9 acts as a survival factor for neurons but does not promote neurite outgrowth. FGF-9 has been shown to mediate its effects by binding to FGF receptors. It efficiently activates the FGFR2c splice form of FGFR2 and the FGFR3b and FGFR3c splice isoforms of FGFR3. 产品介绍 Recombinant Fibroblast Growth Factor-9 is a disulfide-linked monomer protein consisting of 208 amino acid residues, and migrates as an approximately 23 kDa protein under non-reducing and reducing conditions in SDS-PAGE.
询价背景介绍 FGF-9 is an autocrine and paracrine prostatic growth factor expressed by prostatic stromal cells. FGF-9 induces osteoblast proliferation and new bone formation in a bone organ assay. FGF-9 is produced by many prostate cancer cells and contributes to prostate cancer-induced new bone formation and may participate in the osteoblastic progression of prostate cancer in bone. It is also an autocrine and/or paracrine neurotrophic factor that promotes the survival of motoneurons and upregulates choline acetyl-transferase activity. FGF-9 enhances survival of AChE-positive neurons, increasing their mean soma size. It also up-regulates their choline acetyltransferase activity as potently as NGF and the effect is greater than that elicited by bFGF, CNTF, or GDNF. FGF-9 acts as a survival factor for neurons but does not promote neurite outgrowth. FGF-9 has been shown to mediate its effects by binding to FGF receptors. It efficiently activates the FGFR2c splice form of FGFR2 and the FGFR3b and FGFR3c splice isoforms of FGFR3. 产品介绍 Recombinant Fibroblast Growth Factor-9 is a disulfide-linked monomer protein consisting of 208 amino acid residues, and migrates as an approximately 23 kDa protein under non-reducing and reducing conditions in SDS-PAGE.
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