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RosetteSep™ Human Total Lymphocyte Enrichment Cocktails

Supplier: STEMCELL Technologies

Description: Immunodensity isolation of untouched lymphocytes.

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HIV (HLA Class I Control) Peptide Pool

Catalog Number: (MSPP-100-1384)

Supplier: STEMCELL Technologies

Description: Stimulating T cells with HIV (HLA Class I Control) Peptide Pool releases downstream cytokines and upregulates activation markers, enabling antigen-specific T cells to be detected or isolated for analysis. HIV Peptide Pool is a lyophilized mixture of 22 peptides from human immunodeficiency virus (HIV), and consists of defined HLA class I-restricted T cell epitopes. Viral peptide pools are useful for a broad range of applications, including vaccine development, immunological research, and diagnostic assay development.

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EasySep™ HLA Chimerism Whole Blood CD4 Positive Selection Kits

Supplier: STEMCELL Technologies

Description: Column-free immunomagnetic positive selection of human CD4+ cells for HLA analysis.

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Mouse Recombinant IFN beta

Catalog Number: (MSPP-100-1337)

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 et al.). 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 et al.). 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 et al.). For consistency and reproducibility across your applications, interferon alpha 1 from STEMCELL comes lyophilized with ≥ 87% purity, specific activity EC50 ≤18 pg/mL, and LAL analysis verification ensuring endotoxin levels are ≤1.0 EU/μg protein.

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Human Recombinant FGF-8A

Supplier: STEMCELL Technologies

Description: Fibroblast growth factor 8A (FGF-8A) is a member of the fibroblast growth factor (FGF) family and is an isoform of FGF-8. FGF-8A binds the FGF receptor (FGFR) and activates Ras/MAPK signaling (Hulstrand and Houston). The FGF family possesses broad mitogenic and cell survival activities (Folkman and Klagsbrun; Kimelman and Kirschner) and is involved in a variety of biological processes, including cell proliferation, differentiation, survival, and apoptosis (Folkman and Klagsbrun; Klagsbrun; Rifkin and Moscatelli). FGF-8 RNA is spliced to produce 4 protein isoforms in humans: FGF-8A, FGF-8B, FGF-8E, and FGF-8F. The functional differences are not fully understood; however, studies in zebrafish and Xenopus show that FGF-8A is required for endoderm morphogenesis and neurogenesis (Choe and Crump; Hulstrand and Houston).

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