2465 Results for: "STEMCELL Technologies"

Supplier: STEMCELL Technologies

Mouse monoclonal IgG1 antibody against human CD56 (NCAM), Alexa Fluor® 488-conjugated.

Supplier: STEMCELL Technologies

Immunomagnetic isolation of untouched human naïve CD8+ T cells

Supplier: STEMCELL Technologies

Apoptosis staining and detection kit - 100 tests.

Supplier: STEMCELL Technologies

Glial cell line-derived neurotrophic factor (GDNF) is a neurotrophic factor and a member of the tumor growth factor (TGF)-beta superfamily. The GDNF family of growth factors also includes neurturin, persephin, and artemin, which have seven conserved cysteine residues called cysteine-knot (Treanor et al.). GDNF family ligands signal through binding to specific GDNF-family receptor-α (GFRα) co-receptors and activate the RET receptor tyrosine kinase (Durbec et al.). Four different forms of GFRα co-receptors have been characterized (GFRα 1-4) out of which GDNF binds specifically to GFRα1 prior to forming a complex with RET (Airaksinen and Saarma). GDNF is known to promote survival and morphological differentiation of midbrain dopaminergic neurons in both in vivo and in vitro studies and increase their high-affinity dopamine uptake (Granholm et al.; Lin et al.). GDNF has also been shown to have restorative effects on dying dopaminergic neurons in response to degenerative toxins (Aoi et al.). GDNF, together with Human Recombinant BDNF (brain-derived neurotrophic factor; Catalog #78005), BrainPhys™ Neuronal Medium (Catalog #05790), and other supplements, can be used to differentiate human pluripotent stem cell (hPSC)-derived neural progenitor cells into neurons (Bardy et al.). This product is animal component-free.

Supplier: STEMCELL Technologies

Stimulating T cells with SARS-CoV-2 (Spike Protein) Omicron BA.4/BA.5 Peptide pool releases downstream cytokines and upregulates activation markers, enabling antigen-specific T cells to be detected or isolated for analysis. This pool is provided as two lyophilised mixtures (subpools) from the spike glycoprotein of SARS-CoV-2 Omicron BA.4/BA.5 subvariant. The subpools contain 158 and 157 peptides, respectively, for a total of 315 peptides, and they consist of 15-mer peptides with 11-amino-acid overlaps that cover amino acids 1 to 1270 on the spike protein. Through interactions with the angiotensin-converting enzyme 2 (ACE2) receptor, the spike protein enables the virus to attach to the cell membrane, and plays a critical role in viral entry (Hoffmann et al.; Walls et al.). Viral peptide pools are useful for a broad range of applications, including vaccine development, immunological research, and diagnostic assay development.

Supplier: STEMCELL Technologies

Fetal bovine serum for cell culture and research applications.

Supplier: STEMCELL Technologies

Methylcellulose-based medium without cytokines for human cells.

Supplier: STEMCELL Technologies

Cell detachment solution.

Supplier: STEMCELL Technologies

Tumor necrosis factor-α (TNF-α) is a pro-inflammatory cytokine that activates NF-kB, MAPK, and PI3K/AKT pathways. Activated T cells and macrophages are the primary producers of TNF-α in response to inflammation and infectious conditions. Many other cell types have been shown to produce TNF-α, among them B cells, NK cells, mast cells, neutrophils, dendritic cells, microglia, endothelial cells, smooth muscle cells, cardiomyocytes, and fibroblasts. TNF-α has cytotoxic effects on cancer cells in vitro by stimulating anti-tumor immuno- suppressive responses. TNF-α stimulates expression of E- and P-selectins, thus facilitating adhesion of neutrophils, monocytes, and memory T cells to activated platelets and endothelial cells (Zelová and Hosek). Other effects of TNF-α include vasodilatation and edema formation.

Supplier: STEMCELL Technologies

Granulocyte colony-stimulating factor (G-CSF) is a member of the CSF family of glycoproteins that regulate hematopoietic cell proliferation, differentiation, and function. It is a key cytokine involved in the production of neutrophils and the stimulation of granulocyte colony formation from hematopoietic progenitor cells (Metcalf and Nicola). G-CSF causes a range of effects including a transient reduction of SDF-1 expression (Petit et al.), the activation of metalloproteases that cleave VCAM-1 (Levesque et al.), and the release of norepinephrine from the sympathetic nervous system (Katayama et al.), leading to the release or mobilization of hematopoietic stem cells from the bone marrow into the periphery. The G-CSF receptor is expressed on a variety of hematopoietic cells, including myeloid-committed progenitor cells, neutrophils, granulocytes, and monocytes. In addition to hematopoietic cells, G-CSF is also expressed in cardiomyocytes, neuronal cells, mesothelial cells, and endothelial cells. Mouse G-CSF was first purified from cultures of the WEHI-3B myelomonocytic leukemia cell line as the inducer of the terminal differentiation of WEHI-3B and other myeloid leukemia cell lines (Nicola et al.). It was later cloned in monkey COS cells from a cDNA library prepared with mRNA derived from mouse fibrosarcoma NFSA cells that produce G-CSF constitutively (Tsuchiya et al.). Binding of G-CSF to its receptor leads to activation of the JAK/STAT, MAPK, PI3K, and AKT signal transduction pathways.

Supplier: STEMCELL Technologies

Immunomagnetic isolation of untouched human leukocytes from whole blood.

Supplier: STEMCELL Technologies

Immunomagnetic positive selection kit using particle release technology.

Supplier: STEMCELL Technologies

The EasySep™ 'The Big Easy' magnet is designed for cell separation procedures using EasySep™ reagents when processing a large number of cells, or when using RoboSep™.

Supplier: STEMCELL Technologies

Immunomagnetic isolation of untouched non-human primate CD4+ T cells

Supplier: STEMCELL Technologies

Semi-solid methylcellulose-based medium for hybridoma selection and cloning, with HAT (serum-containing).

Supplier: STEMCELL Technologies

Animal component-free DNase I for digestion of DNA.

Supplier: STEMCELL Technologies

Integrated workflow containing tools to isolate and expand CD34+ progenitor cells from peripheral blood and their subsequent reprogramming to iPS cells.

Supplier: STEMCELL Technologies

Trans-activating crRNA for guide RNA generation in CRISPR-Cas9 genome editing.

Supplier: STEMCELL Technologies

Heregulin-beta 1 also known as neuregulin-1 (NRG-1) is a member of the epidermal growth factor (EGF) family of growth factors and acts as a ligand for ErbB family receptor tyrosine kinases (Britsch et al.). Heregulin/neuregulin is a family of structurally related polypeptide growth factors derived from alternatively spliced genes (NRG1, NRG2, NRG3, and NRG4). Heregulin-beta 1 plays an important role during the development of the nervous system, heart, and mammary glands (Britsch). Heregulin-beta 1 is expressed in neuronal cells, and modulates cell growth and differentiation of the cells during development and wound healing (Mei and Xiong). It has been implicated through in vivo and in vitro studies that heregulin-beta 1/ErbB signaling is crucial for multiple aspects of cardiovascular development and protects the heart from ischemic injury (Odiete et al.). Heregulin-beta 1 also promotes invasiveness and metastasis of breast cancer cells (Hutcheson et al.). It has also been shown that heregulin-beta 1 has a role in the growth and maintenance of human embryonic stem cells (Wang et al.).

Supplier: STEMCELL Technologies

Use sclerostin to alter bone remodeling homeostasis, where it inhibits bone formation in vivo and in vitro, likely through Wnt/β-catenin signaling cascades (Ellies et al.; Lin et al.). Sclerostin is a member of the cerberus/DAN family of glycoproteins whose members share a C-terminal cysteine-knot-like (CTCK) domain. Highly expressed in bone and cartilage, as well as in kidney, and liver tissues (Weivoda et al.), this osteoclast-derived BMP antagonist binds BMP6 and BMP7 with high affinity, and binds BMP2 and BMP4 with a lower affinity (Kusu et al.). Mutations in the SOST gene have been associated with sclerosteosis (Brunkow et al.), van Buchem disease (Staehling-Hampton et al.), and bone dysplasia disorders, characterized by increased bone density. This protein product contains a His-residue tag at the carboxyl end of the polypeptide chain. For consistency and reproducibility across your applications, sclerostin from STEMCELL comes lyophilised with ≥87% purity, and endotoxin levels are verified to be ≤1.0 EU/μg protein.

Supplier: STEMCELL Technologies

Thrombopoietin (TPO) is a key regulator of megakaryocytopoiesis and thrombopoiesis in vitro and in vivo. TPO stimulates the proliferation and maturation of megakaryocytes and has an important role in regulating the level of circulating platelets in vivo. TPO also promotes the survival, self-renewal, and expansion of hematopoietic stem cells and primitive multilineage progenitor cells. It is commonly used with other cytokines such as stem cell factor (SCF) and Flt3/Flk-2 Ligand to promote expansion of primitive hematopoietic cells in culture (Hitchcock andamp; Kaushansky). The TPO receptor, c-Mpl, is expressed at all stages of megakaryopoiesis, from hematopoietic stem and progenitor cells to mature platelets.

Supplier: STEMCELL Technologies

Human amyloid-β (1 to 42) peptide is a neurotoxic peptide fragment that can oligomerize to form amyloid plaques, thus contributing to the onset of Alzheimer's disease (Paradis et al.; Teplow; Wolfe). These neurotoxic peptide fragments also modulate the expression of Bcl-2 and Bax in human neurons (Paradis et al.).

Supplier: STEMCELL Technologies

Mouse monoclonal IgG1 antibody against human, rhesus, cynomolgus CD5, unconjugated.

Supplier: STEMCELL Technologies

Rat monoclonal IgM, kappa isotype control antibody, APC-conjugated.

Supplier: STEMCELL Technologies

Rat monoclonal IgG1 antibody against human, mouse, dog E-cadherin (CD324), unconjugated.

Supplier: STEMCELL Technologies

Rat monoclonal IgG1, kappa isotype control antibody, biotin-conjugated.

Supplier: STEMCELL Technologies

Mouse monoclonal IgG3 antibody against human, mouse, rat SSEA-4, FITC-conjugated.

Supplier: STEMCELL Technologies

Mouse monoclonal IgG1 antibody against human, chimpanzee CD19, Alexa Fluor® 488-conjugated.

Supplier: STEMCELL Technologies

Mouse monoclonal IgG1 antibody against human, cynomolgus, cow CD117 (c-Kit), APC-conjugated.

Supplier: STEMCELL Technologies

Mouse monoclonal IgG1 antibody against human, cynomolgus, cow CD117 (c-Kit), PE-conjugated.