303 Results for: "Shenandoah Biotechnology"

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Follistatin is an autocrine, activin-binding protein that is ubiquitously expressed with highest expression levels being in the ovary and skin. Follistatin negatively regulates the signaling of transforming growth factor beta (TGF-β) family members, such as activin, bone morphogenic proteins (BMPs), myostatin, growth differentiation factor 11 (GDF-11), and TGF-β1. Follistatin functions as an antagonist by binding TGF-β family members to block interaction with their signaling receptors. Follistatin also inhibits the secretion of follicle-stimulating hormone (FSH) from the anterior pituitary.

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Fms-related tyrosine kinase 3 ligand (FLT-3 ligand) is a growth factor that regulates hematopoietic cell proliferation. FLT-3 ligand signalling is transmitted through the fms-related tyrosine kinase 3 (FLT-3) receptor. FLT-3 ligand promotes the long-term expansion and differentiation of pro-B cells in the presence of interleukin 7 (IL-7,) or in combination of IL-7 and interleukin 3 (IL-3). Human FLT-3 ligand is active on mouse cells.

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Interleukin 1 beta (IL-1β) is a pro-inflammatory cytokine that is produced by monocytes, macrophages, and dendritic cells (DCs). IL-1β signals through the IL-1 receptor, type 1 (IL-1R1) to activate the myeloid differentiation primary response 88 (MYD88) signaling pathway, which contains the cytoplasmic Toll/IL-1 receptor (TIR) domain adapter. IL-1β and the independently regulated IL-1α protein have overlapping proinflammatory activities to induce adhesion molecule expression on epithelial cells, control fever induction, initiate rheumatoid arthritis, and promote septic shock.

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Interleukin 8 (IL-8 or CXCL8) is a member of the CXC cytokine family and is produced by macrophages, epithelial, smooth muscle, and endothelial cells. IL-8 binds the G protein-coupled serpentine receptors CXCR1 and CXCR2. IL-8 recruits innate immune cells, induces phagocytosis, and stimulate angiogenesis.

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Growth differentiation factor 15 (GDF-15) is a member of the transforming growth factor beta (TGF-β) family and is made by the placenta and cardiovascular tissues. GDF-15 regulates inflammatory and apoptotic pathways during cellular stress and injury. GDF-15 is emerging as a biomarker of early heart disease, such that increased levels of circulating GDF-15 are associated with an increased risk of developing heart failure.

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Granulocyte-colony stimulating factor (G-CSF) is a cytokine that functions as a potent inducer of neutrophilic granulocyte proliferation, terminal differentiation, and activation. G-CSF synthesis occurs in monocyte, macrophage, epithelial, endothelial, and fibroblast cells after activation by bacterial endotoxins, tumor necrosis factor alpha (TNFα), interleukin 1 (IL-1), or interleukin 17 (IL-17). The functional activity of G-CSF is mediated through the granulocyte colony-stimulating factor receptor (G-CSF-R) to activate JAK/STAT and MAPK signal transduction pathways. G-CSF also promotes neurogenesis and inhibits neuronal apoptosis. Human and mouse G-CSF proteins are cross-reactive.

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Basic fibroblast growth factor (bFGF), also known as FGF2, is expressed by endothelial cells and is a mediator of angiogenesis. bFGF also has cardioprotective functions during heart injury. bFGF binds heparin in order to signal through fibroblast growth factor (FGF) receptor tyrosine kinases.

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Granulocyte-colony stimulating factor (G-CSF) is a cytokine that functions as a potent inducer of neutrophilic granulocyte proliferation, terminal differentiation, and activation. G-CSF synthesis occurs in monocyte, macrophage, epithelial, endothelial, and fibroblast cells after activation by bacterial endotoxins, tumor necrosis factor alpha (TNFα), interleukin 1 (IL-1), or interleukin 17 (IL-17). The functional activity of G-CSF is mediated through the granulocyte colony-stimulating factor receptor (G-CSF-R) to activate JAK/STAT and MAPK signal transduction pathways. G-CSF also promotes neurogenesis and inhibits neuronal apoptosis. Human and mouse G-CSF proteins are cross-reactive.

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Connective tissue growth factor (CTGF) is a mitogen that is secreted by vascular endothelial cells in response to basic fibroblast growth factor (bFGF) or vascular endothelial growth factor (VEGF). CTGF promotes cell growth, migration, adhesion, and survival of endothelial cells. CTGF is also important during osteogenesis, chondrogenesis, and skeletogenesis. CTGF has an insulin-like growth factor binding protein (IGFBP) domain, a thrombospondin type 1 repeat (TSR) domain, and a C-terminal cysteine knot motif.

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Fibroblast growth factor 7 (FGF7), also known as keratinocyte growth factor (KGF), is a potent mitogen that regulates epithelial cell migration and differentiation. FGF7 is produced by mesenchymal cells and binds in high affinity to a splice variant of FGF receptor 2 (FGFR2-IIIb). The mitogenic activity of FGF7 acts predominantly on keratinocytes, but not on fibroblast or endothelial cells. FGF7 expression is upregulated after acute and chronic injury, suggesting that FGF7 functions during the healing of injured epithelial cells. FGF7 also induces the formation of the apical ectoderm ridge during limb development.

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Interleukin 22 (IL-22), also called IL-TIF, is an IL-10 family member that is produced by activated dendritic cells and T lymphocytes. It signals via a heteroduplex receptor consisting of IL-22R and IL-10Rbeta chains. It is a potent mediator of cellular inflammatory responses and wound healing.

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Resistin-like molecule-beta (RELM-b) is a member of the RELM family of secreted proteins containing conserved C-terminus cysteines. The RELM family consists of Resistin (FIZZ3), RELM-a (FIZZ1), RELM-b (FIZZ2), and RELM-g (FIZZ4). Resistin and RELM-b are the only RELM family members found in humans, whereas all four RELM family members are present in rodents. RELM-b functions to increase fibroblast proliferation and differentiation, resulting in airway remodelling and increased inflammation.

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Interleukin 6 (IL-6) is a cytokine that is expressed by T cells, macrophages, and muscle cells. IL-6 acts to stimulate an immune response upon infection or trauma. IL-6 has both pro-inflammatory and anti-inflammatory functions, is capable of promoting fever, and signals through the cell-surface type I cytokine receptor complex containing the IL-6Ra and gp130 chains. Human IL-6 is active on mouse and rat cells.

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Resistin is a peptide hormone belonging to a class of cysteine-rich secreted proteins, termed the resistin-like molecules (RELM) family. Resistin is produced by macrophages and functions during insulin sensitivity and inflammatory processes.

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Heparin-binding epidermal growth factor-like growth factor (HB-EGF) is a member of the epidermal growth factor (EGF) family and is expressed by monocytes and macrophages. HB-EGF is the predominant growth factor involved in epithelialization during wound healing. HB-EGF signals through the receptor tyrosine kinase ErbB2 to maintain adult heart homeostasis, and promotes cardiac valve development through binding in high affinity to the epidermal growth factor receptor (EGFR). HB-EGF binds the the ErbB4 receptor tyrosine kinase to mediate implantation of the human blastocyst. HB-EGF also functions as a potent mitogen for fibroblasts and smooth muscle cells.

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Persephin (PSP) is a neurotrophic factor of the glial cell line-derived neurotrophic factor (GDNF) family. PSP promotes survival and growth of dopaminergic and motor neurons, but not peripheral neurons. PSP is a ligand for the RET receptor tyrosine kinase.

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Exodus-2, also known as CCL21 and 6Ckine, is a chemokine that is strongly produced in the human lymph nodes and spleen. Exodus-2 signals through the chemokine receptor CCR7 to regulate thymocyte and activated T cell migration. Exodus-2 also mediates the homing of lymphocytes to the lymphatic system. Human and mouse Exodus-2 proteins share greater than 85% amino acid sequence identity.

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Macrophage inflammatory protein-1 beta (MIP-1-beta), also known as CCL4, is produced by macrophages and functions as a mitogen-inducible cytokine. MIP-1-beta signals through the chemokine receptor CCR5 to chemoattract immune cells. MIP-1-beta induces inflammatory responses, including neutrophil superoxide production. The MIP-1-alpha and MIP-1-beta heterodimer exhibits antiviral activity against the human immunodeficiency virus 1 (HIV-1).

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Interleukin 1 beta (IL-1β) is a pro-inflammatory cytokine that is produced by monocytes, macrophages, and dendritic cells (DCs). IL-1β signals through the IL-1 receptor, type 1 (IL-1R1) to activate the myeloid differentiation primary response 88 (MYD88) signaling pathway, which contains the cytoplasmic Toll/IL-1 receptor (TIR) domain adapter. IL-1β and the independently regulated IL-1α protein have overlapping proinflammatory activities to induce adhesion molecule expression on epithelial cells, control fever induction, initiate rheumatoid arthritis, and promote septic shock.

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Nerve growth factor beta (beta-NGF) is a neurotrophic factor that is important for the development and maintenance of sensory and sympathetic neurons. beta-NGF signals through the low affinity nerve growth factor receptor (LNGFR) and the tropomyosin receptor kinase A (TrkA) to activate PI3K, Ras, and PLC signaling pathways. beta-NGF is also involved in the growth, differentiation, and survival of B lymphocytes. Human, mouse, and rat beta-NGF proteins are cross-reactive.

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Interleukin 2 (IL-2) is an immunomodulatory cytokine that is produced by lymphocytes.  IL-2 signals through the IL-2R receptor to induce activated T cell proliferation and promote T cell differentiation. IL-2 also stimulates the proliferation and differentiation of B cells, natural killer cells, monocytes, and macrophages.

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Resistin-like molecule-alpha (RELM-α) is a member of the RELM family of secreted proteins containing conserved C-terminus cysteines. The RELM family consists of Resistin (FIZZ3), RELM-α (FIZZ1), RELM-β (FIZZ2), and RELM-γ (FIZZ4). RELM-α and Resistin are secreted by adipocytes, unlike Relm-β which is secreted by gastrointestinal epithelial cells, and RELM-γ which is expressed by peripheal blood granulocytes and bone marrow cells.

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Interleukin 4 (IL-4) is an immunomodulatory cytokine that functions to induce naïve helper T cells to differentiate into type 2 T helper (Th2) cells. Th2 cells subsequently produce more IL-4 in a positive feedback loop. IL-4 also promotes immunoglobulin IgG to IgE isotype switching on B cells. IL-4 binds the IL-4Rα receptor to activate STAT6 signaling.

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Interleukin 4 (IL-4) is an immunomodulatory cytokine that functions to induce naïve helper T cells to differentiate into type 2 T helper (Th2) cells. Th2 cells subsequently produce more IL-4 in a positive feedback loop. IL-4 also promotes immunoglobulin IgG to IgE isotype switching on B cells. IL-4 binds the IL-4Rα receptor to activate STAT6 signaling.

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Artemin is a neurotrophin member of the glial cell line-derived neurotrophic factor (GDNF) ligand family. Artemin is highly expressed in the adult pituitary gland, placenta, and trachea, and shows low level expression in the brain, spinal cord, and peripheral tissues. Artemin signals through the RET receptor and GDNF family receptor alpha 3 (GFRα3) co-receptor complex to support neuronal survival.

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Thrombopoietin (TPO) is a growth factor that is produced by liver and kidney tissues. TPO binds the TPO receptor (CD110) to promote megakaryocyte maturation, differentiation, and the production of platelets.

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The p28 subunit of interleukin 27 (IL-27), also known as interleukin 30 (IL-30), is a member of the interleukin 12 (IL-12) family of cytokines. p28 is a 28 kilodalton polypeptide that associates with the Epstein-Barr virus induced gene 3 (EBI3) to form the IL-27 cytokine heterodimer complex. IL-27 functions as a proinflammatory cytokine that induces immunomodulatory effects in naïve CD4+ T cells, mast cells, and monocytes. p28 can also form a complex with cytokine-like factor 1 (CLF), that is secreted by dendritic cells, to regulate natural killer (NK) and T cell function.

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Interleukin 17AF (IL-17AF) is a heterodimer that is composed of the interleukin 17A (IL-17A) and interleukin 17F (IL-17F) members of the IL-17 family of cytokines. IL-17AF is produced by T helper 17 cells (Th17) following interleukin 23 (IL-23) stimulation. IL-17AF signals through the IL-17RA/IL-17RC receptor complex and functions to regulate inflammatory responses. IL-17AF induces chemokine and airway neutrophilia production, similar in function to IL-17A and IL-17F homodimers. In regard to these functions, IL-17AF is less active than the IL-17A homodimer and shows greater activity than the IL-17F homodimer. Human and rat IL-17AF are active on mouse cells.

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Insulin-like growth factor I (IGF-I) is a growth factor that is produced by the liver. IGF-1 production is stimulated by growth hormone (GH). IGF-I binds the insulin-like growth factor 1 receptor (IGF1R) and the insulin receptor to stimulate systemic body growth. IGF-I is one of the most potent activators of the AKT signaling pathway, which stimulates cell proliferation and inhibits programmed cell death.

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Interleukin 31 (IL-31) is an immunoregulatory cytokine that is expressed by activated type 2 T helper (Th2) cells. IL-31 signals through a heterodimer receptor consisting of the IL-31 Receptor A (IL-31RA) and the oncostatin M receptor (OSMR), which are expressed on monocytes, epithelial cells, and keratinocytes. IL-31 promotes allergic reactions and inflammatory skin diseases.