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Protéines et Peptides
Numéro de catalogue:
(ACRBCD9-H82E5-25UG)
Fournisseur:
ACROBIOSYSTEMS
Description:
Biotinylated Human CD39 / ENTPD1 protein, His,Avitag™ (MALS verified) (active enzyme).
UOM:
1 * 25 µG
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Fournisseur:
Serva
Description:
Bovine serum albumin (BSA), Fraction V
Fournisseur:
Serva
Description:
Colistin sulphate
Numéro de catalogue:
(MOLEM21654760)
Fournisseur:
Molekula
Description:
Cyclosporin A
UOM:
1 * 100 mg
Il s'agit d'un élément MarketSource. Des frais supplémentaires peuvent s'appliquer.
Fournisseur:
ACROBIOSYSTEMS
Description:
Human recombinant GITR (from HEK293)
Fournisseur:
STEMCELL Technologies
Description:
Fibroblast growth factor 7 (FGF-7) is a member of the FGF family, and acts exclusively through a subset of FGF receptor isoforms expressed predominantly by epithelial cells (Finch and Rubin). FGF-7 seems to act specifically on epithelial cells and stimulates proliferation, migration, and differentiation of these cells, and also participates in epithelial protection and repair both in vitro and in vivo (Finch and Rubin; Werner). In contrast, FGF-7 is produced solely by cells of mesenchymal origin, and functions as a paracrine mediator of mesenchymal-epithelial communication (Rubin <i>et al.</i>). FGF-7 has also been shown to supplement several wound-healing properties of bioengineered skin (Erdag <i>et al.</i>) and to induce autophagy in human keratinocytes (Belleudi <i>et al.</i>). Additionally, FGF-7 has a role in the differentiation of pluripotent stem cell to endodermal pancreatic-like insulin-producing cells and thymic epithelial cells (Inami <i>et al.</i>; Niu <i>et al.</i>). This product is animal component-free.
Fournisseur:
STEMCELL Technologies
Description:
Ciliary neurotrophic factor (CNTF) is a neurotrophic factor that belongs to the four-helix bundle cytokine family and is structurally related to interleukin 6 (IL-6), interleukin 11 (IL-11), leukemia inhibitory factor (LIF), and oncostatin M (OSM). CNTF binds to its receptor CNFTRα and induces formation of a heterodimer of the signal transducing IL-6 receptor gp130 and LIF receptor (LIFR)-β, which triggers JAK/STAT, ERK, and PI3K signaling cascades (Schuster <i>et al.</i>). CNTF plays an important role in neurogenesis and the differentiation of neural stem cells and has been suggested to possess a therapeutic role in treating neurological disorders (Ding <i>et al.</i>; Oppenheim <i>et al.</i>). CNTF has also been shown to protect rod photoreceptors from light-induced damage and have therapeutic effects on retinal degenerative diseases caused by genetic defect or damage induced by toxins, autoantibodies, or strong light (Pernet <i>et al.</i>; Rhee <i>et al.</i>). Another therapeutic role of CNTF has been reported in protecting oligodendrocytes from death induced by apoptosis (Louis <i>et al.</i>). Additionally, CNTF is commonly used to differentiate human pluripotent stem cell (hPSC)-derived neural progenitor cells into astrocytes (Krencik and Zhang). This product is animal component-free.
Fournisseur:
STEMCELL Technologies
Description:
Interleukin 10 (IL-10) is the founding member of the IL-10 family of class II cytokines. All of the IL-10 cytokine family members have a four-helix bundle consisting of α-helical folds. Upon binding to its receptor, IL-10 activates signaling through JAK1 and STAT3. It is produced by dendritic cells, macrophages, and CD4 T cells, as well as mast cells, NK cells, neutrophils, and B cells, under specific stimulating conditions (Saraiva and O'Garra). IL-10 can inhibit the expression of pro-inflammatory cytokines and promote healing processes, and is important for the function of T regulatory cells. IL-10 also enhances B cell proliferation, immunoglobulin secretion, and class II MHC expression, while IL-10 produced by macrophages inhibits activation of neighboring macrophages, thus allowing a level of self-regulation (Ouyang <i>et al.</i>). This product is animal component-free.
Fournisseur:
STEMCELL Technologies
Description:
Leukemia inhibitory factor (LIF) is an interleukin 6 class cytokine that regulates a broad variety of developmental functions. After LIF binds to LIF receptor (LIFR), LIFR associates with gp130 and activates JAK/STAT and MAPK signaling (Auernhammer and Melmed; Suman <i>et al.</i>). LIFR activation of STAT3 is essential for maintaining the mouse embryonic stem cell phenotype (Niwa <i>et al.</i>). Produced by the endometrium, LIF plays an important autocrine and paracrine role in implantation by regulating proliferation, invasion, and differentiation of trophoblasts following blastocyst attachment (Auernhammer and Melmed; Suman <i>et al.</i>). Human LIF can be used for the maintenance of mouse embryonic stem cells, however mouse LIF cannot bind to the human receptor, thus rendering mouse LIF inactive (Dahéron <i>et al.</i>). LIF is produced by CD4+ and activated regulatory T cells, and promotes Foxp3 expression, while repressing Th17 lineage-specific genes (Metcalfe). LIF is also secreted by mesenchymal stromal cells, where it supports hematopoiesis and immune modulation (Nasef <i>et al.</i>). This product is animal component-free.
Fournisseur:
STEMCELL Technologies
Description:
Add this high-quality human recombinant transforming growth factor beta 1 (TGF-β1) to your cell culture workflow. Its verified endotoxin level of ≤0,2 EU/μg, measured using the LAL method, allows confidence for use across multiple applications. A member of the TGF-β superfamily, TGF-β1 regulates diverse cellular phenotypes. TGF-β1 binds to serine-threonine kinase type I and II receptors and activates signal transduction through SMAD2/3 proteins.
Numéro de catalogue:
(STMC100-1404)
Fournisseur:
STEMCELL Technologies
Description:
Stimulating T cells with HHV8 (K8.1) Peptide pool releases downstream cytokines and upregulates activation markers, enabling antigen-specific T cells to be detected or isolated for analysis. HHV8 (K8.1) Peptide pool is a lyophilised mixture of 55 peptides from glycoprotein K8.1 of human herpesvirus 8 (HHV-8) and consists of 15-mer peptides with 11-amino-acid overlaps that cover amino acids 1 to 228 on K8.1. Expressed in the late-lytic phase, K8.1 is a viral envelope protein that binds to heparin sulfate on the cell surface and facilitates HHV 8 infection (Zoeteweij et al; Birkmann <i>et al.</i>; Wang <i>et al.</i>). Viral peptide pools are useful for a broad range of applications, including vaccine development, immunological research, and diagnostic assay development.
UOM:
1 * 1 PE
New Product
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Fournisseur:
STEMCELL Technologies
Description:
Interleukin 15 (IL-15) is a four-alpha helix bundle cytokine with many similar properties to IL-2. The IL-15 receptor is a heterotrimeric receptor composed of IL-15Ra (the high-affinity receptor for IL-15), as well as IL-2/15Rb (CD122) and common gamma chain (CD132). IL-15 binds to IL-15Rα receptor and can then be presented in trans to IL-2/15Rb and common gamma chain on other cells. Trans-presentation is thought to be the major mechanism by which IL-15-mediated responses occur in mice, although may not be necessary in humans (Castillo <i>et al.</i>). The cytoplasmic domains of IL-2/15Rb and common gamma chain mediate signaling to activate JAK/STAT and PI3K pathways. IL-15 supports the survival and proliferation of naïve CD4+ and CD8+ T cells, and promotes homeostasis of memory T cells. IL-15 also promotes the survival and differentiation of NK cells and regulates their cytolytic activity (Ma <i>et al.</i>). This product is animal component-free.
Fournisseur:
STEMCELL Technologies
Description:
Interleukin 11 (IL-11) is a pleiotropic cytokine with effects on various tissues including the bone marrow, brain, and intestinal mucosa (Du andamp; Williams). It belongs to the IL-6 family of cytokines that share a common signal transducer, gp130. IL-11 induces the proliferation of hematopoietic stem cells (Lemoli <i>et al.</i>) and megakaryocytic progenitor cells (Bruno <i>et al.</i>), the maturation of megakaryocytes (Burstein <i>et al.</i>), and the production of platelets (Neben <i>et al.</i>). IL-11 is produced by a variety of cell types including hematopoietic cells, mesenchymal cells, epithelial cells, and neuronal cells. It was first cloned from a cDNA library of the human bone marrow-derived stromal cell line KM-102 (Kawashima <i>et al.</i>). The binding of IL-11 to its receptor induces heterodimerization with the gp130 subunit and activation of JAK tyrosine kinases. IL-11 was the first pharmacologic agent approved for the treatment of chemotherapy-induced thrombocytopenia. IL-11 also plays a role in cancer progression by inducing the proliferation of epithelial cancer cells and the survival of metastatic cells at distant organs. Recently, IL-11 has gained interest for its role in the pathogenesis of diseases in dysregulated mucosal homeostasis associated with STAT3 upregulation, including gastrointestinal cancers (Putoczki <i>et al.</i>).
Fournisseur:
STEMCELL Technologies
Description:
Interleukin 4 (IL-4) is a type I cytokine produced by Th2 T cells, NK T cells, γ/δ T cells, eosinophils, mast cells, and activated basophils. IL-4 receptors are present on a number of cells, including hematopoietic, endothelial, epithelial, muscle, and brain tissues. IL-4 receptor engagement initiates signaling through the JAK/STAT pathway, and leads to the activation of PI3K and Ras/MAPK pathways (Nelms <i>et al.</i>). IL-4 plays a key role in immunoglobulin class switching in B cells and in regulating the differentiation of naïve T cells into T helper 2 (Th2) cells, while inhibiting Th1 differentiation. IL-4 acts together with tumor necrosis factor to stimulate expression of adhesion molecules on vascular endothelial cells and to downregulate expression of E-selectin, thus recruiting T cells and eosinophils to the site of inflammation (Nelms <i>et al.</i>).
Numéro de catalogue:
(STMC100-1412)
Fournisseur:
STEMCELL Technologies
Description:
Stimulating T cells with CMV (IE-2) Peptide pool releases downstream cytokines and upregulates activation markers, enabling antigen-specific T cells to be detected or isolated for analysis. CMV (IE-2) Peptide pool is a lyophilised mixture of 143 peptides from immediate early protein 2 (IE2) of human cytomegalovirus (CMV; strain AD169), and consists of 15-mer peptides with 11-amino-acid overlaps that cover amino acids 1 to 580 on IE2. IE2 is critical for viral infection and for the expression of CMV early genes (Marchini <i>et al.</i>). It also controls transcription initiation for a subset of early-late and late viral promoters via RNA polymerase II (Li <i>et al.</i>). IE2, along with IE1, may contribute to the survival of CMV-infected cells by blocking tumor necrosis factor alpha (TNF-α)-induced apoptosis (Zhu <i>et al.</i>). Viral peptide pools are useful for a broad range of applications, including vaccine development, immunological research, and diagnostic assay development.
UOM:
1 * 1 PE
New Product
Il s'agit d'un élément MarketSource. Des frais supplémentaires peuvent s'appliquer.
Fournisseur:
STEMCELL Technologies
Description:
Dickkopf-related protein 1 (DKK-1) is a member of the Dickkopf family and is a secreted protein that inhibits the canonical WNT pathway by competitive binding to low-density lipoprotein receptors (LRP)-5 and 6 with high affinity, thereby decreasing β-catenin protein stability (Niehrs). DKK-1 regulates embryonic development and contains two conserved cysteine-rich domains separated by a linker region and an N-terminal signal peptide (Krupnik <i>et al.</i>; Lieven <i>et al.</i>). A family of human DKK-related genes composed of DKK-1, DKK-2, DKK-3, and DKK-4 have been characterized together with a unique DKK-3 related protein termed Soggy (Krupnik <i>et al.</i>). DKK-1 has been shown to support the generation of myeloid-derived suppressor cells (MDSCs) and thus is a negative regulator of antitumor immune responses (D’Amico <i>et al.</i>). DKK-1 from thrombocytes is an important regulator of leukocyte infiltration and induces Th2 cell polarization and potentiates Th2 cell cytokine expression (Chae <i>et al.</i>). DKK-1 has also been shown to drive cardiac and retinal differentiation from induced pluripotent stem (iPS) cells (Lian <i>et al.</i>). Protein contains a His-residue tag at the carboxyl end of the polypeptide chain.
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