You Searched For: STEMCELL Technologies

Supplier: 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.

Supplier: 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.

Supplier: STEMCELL Technologies

Description: Immunomagnetic isolation of untouched human peripheral blood mononuclear cells from whole blood

Supplier: STEMCELL Technologies

Description: Fibroblast growth factor 8B (FGF-8B) is a member of the fibroblast growth factor (FGF) family and is an isoform of FGF-8. Cytokines in the FGF family possess broad mitogenic and cell survival activities (Folkman and Klagsbrun; Kimelman and Kirschner) and are involved in a variety of biological processes, including cell proliferation, differentiation, survival, and apoptosis (Folkman and Klagsbrun; Klagsbrun; Rifkin and Moscatelli). FGF-8B signals through FGF receptors (FGFRs) to activate PI3K and MAPK pathways. FGF-8B regulates gastrulation, epithelial-mesenchymal transition, and mesenchymal to epithelial differentiation during embryonic development. FGF-8B has also been found in peripheral blood leukocytes and healthy bone marrow samples (Mattila and Härkönen). FGF-8B has mitogenic effects on somatic cells in the germinal epithelium and is expressed in adult mouse ovarian cells and tissues, which suggests that it regulates maturation of oocytes and seminiferous epithelium in testes (Valve <i>et al.</i>). This product is animal component-free.

Supplier: 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.

Supplier: STEMCELL Technologies

Description: Immunomagnetic positive selection of any cells with your own mouse IgG1 antibody.

Supplier: STEMCELL Technologies

Description: Immunomagnetic isolation of untouched human eosinophils.

Supplier: STEMCELL Technologies

Description: Immunomagnetic isolation of untouched non-human primate cells

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Catalog Number: (STMC100-1322)

Supplier: STEMCELL Technologies

Description: A member of the apolipoprotein family, Apolipoprotein A-I (apo A-I) is a major glycoprotein component of high density lipoprotein (HDL) particles (Frank and Marcel) which facilitate the reverse transport of cholesterol from peripheral tissues to the liver. Apo A-I binds to the scavenger receptor SR-A1, allowing HDL particles to interact with cells in peripheral tissues (Neyen <i>et al.</i>), and is involved in the esterification of cholesterol, acting as a cofactor for lecithin cholesterol acyltransferase (LCAT; Frohlich). Apo A-I has been shown to bind to the scavenger receptor SR-B1 (Williams <i>et al.</i>) and the beta chain of ATP synthase (Martinez <i>et al.</i>) on hepatocytes, highlighting its importance in HDL endocytosis. Mutations in the APOA1 encoding gene may result in dysregulated HDL levels, leading to an increased risk of amyloidosis and ischemic heart disease (Haase <i>et al.</i>; Obici <i>et al.</i>). This protein product contains a His-residue tag at the amino end of the polypeptide chain. This protein product contains a His-residue tag at the amino end of the polypeptide chain. For consistency and reproducibility across your applications, sclerostin from STEMCELL comes lyophilised with ≥92% purity.

UOM: 1 * 100 µG

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Catalog Number: (STMC100-1331)

Supplier: STEMCELL Technologies

Description: Adipocyte-specific adhesion molecule (ASAM) may play a role in cell-cell adhesion as it is expressed in epithelial cells of various tissues and is associated with tight junctions (Raschberger <i>et al.</i>, Sze <i>et al.</i>). This type 1 transmembrane protein belongs to the cortical thymocyte marker in the Xenopus (CTX) family within the immunoglobulin superfamily. Sequence alignment analysis has shown that ASAM shares conserved characteristics with other CTX-like proteins, including extracellular V-type and C2-type domains, a transmembrane region, and a cytoplasmic tail (Raschperger <i>et al.</i>). ASAM is also expressed in adipocytes, and was found to be upregulated in white adipose tissue (WAT) in a rodent model of obesity and type II diabetes (Eguchi <i>et al.</i>). This protein contains a His-residue tag at the carboxyl end of the polypeptide chain. For consistency and reproducibility across your applications, adipocyte-specific adhesion molecule from STEMCELL comes lyophilised with ≥94% purity, and is verified by LAL analysis to ensure endotoxin levels are ≤1,0 EU/μg protein.

UOM: 1 * 100 µG

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Catalog Number: (STMC100-1337)

Supplier: STEMCELL Technologies

Description: A cytokine belonging to the type 1 interferon family, Interferon beta (IFN beta) binds IFN alpha/beta receptors (IFNAR) that activate tyrosine kinases and initiate the interferon-induced Jak-STAT signaling pathway, which modulates many key immune processes (Smieja <i>et al.</i>). In an experimental model involving cardiac fibroblasts isolated from rats, IFN beta was found to induce both pro- and anti-inflammatory cytokines production by activating different STAT proteins (Bolivar <i>et al.</i>). The anti-inflammatory effects of IFN beta have been studied in the context of autoimmune disorders, and there are currently multiple approved IFN beta drugs for treatment of relapsing forms of multiple sclerosis (Filipi and Jack). IFN beta is produced by immune cells, including macrophages, and non-immune cells, such as fibroblasts and epithelial cells (Ivashkiv and Donalin). The crystal structure of IFN beta shares characteristics with other type I interferons. It comprises five alpha-helices with four of them forming a helix bundle, and one long and three shorter loops connecting the helices (Karpusas <i>et al.</i>). For consistency and reproducibility across your applications, interferon alpha 1 from STEMCELL comes lyophilised with ≥87% purity, specific activity EC50 ≤18 pg/mL, and LAL analysis verification ensuring endotoxin levels are ≤1,0 EU/μg protein.

UOM: 1 * 100 µG

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Catalog Number: (STMC100-1336)

Supplier: STEMCELL Technologies

Description: Interferon alpha 1 (IFNA1) belongs to the type 1 interferon family of cytokines, which bind interferon alpha receptors (IFNAR; composed of IFNAR1 and IFNAR2 subunits) that are involved in interferon-induced JAK-STAT signaling (Shemesh <i>et al.</i>). Interferons have inhibitory effects on viral replication and pathogenesis, and studies have found that IFN alpha can prevent the spread of herpes simplex virus (HSV) (Mikloska and Cunningham), and human immunodeficiency virus (HIV) (George and Mattapallil). Pegylated forms of IFN alpha are currently approved for the treatment of chronic hepatitis B (Woo <i>et al.</i>). IFN alpha also displays anti-tumor effects by regulating cell growth and proliferation, and it is used in the treatment of different cancers (Tagliaferri <i>et al.</i>). Interferons display alpha-helical structures with four helices forming an antiparallel alpha-helix bundle (Walter). This protein contains a His-residue tag at the carboxyl end of the polypeptide chain. For consistency and reproducibility across your applications, interferon alpha 1 from STEMCELL comes lyophilised with ≥90% purity, specific activity EC50 ≤40 to 200 pg/ml, and LAL analysis verification ensuring endotoxin levels are ≤1,0 EU/μg protein.

UOM: 1 * 100 µG

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Supplier: STEMCELL Technologies

Description: Immunomagnetic isolation of untouched human T cells.

Supplier: STEMCELL Technologies

Description: Rat monoclonal IgG2a antibody against mouse CD19, Pacific Blue™-conjugated.

Catalog Number: (STMC79018)

Supplier: STEMCELL Technologies

Description: Ready-to-use marker dye for loading DNA samples into agarose gel wells and tracking migration during electrophoresis.

UOM: 1 * 1 mL

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Supplier: STEMCELL Technologies

Description: Immunomagnetic negative selection of untouched human naïve CD4+ T cells