Description
Product Usage Information
Immunofluorescence (Frozen): 1:100
Storage
Supplied in PBS (pH 7.2), less than 0.1% sodium azide and 2 mg/ml BSA. Store at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze.
Protocol
Available protocols: Immunofluorescence (Frozen)
Specificity / Sensitivity
VISTA (D5L5T) Rabbit Monoclonal Antibody (Alexa Fluor
Species Reactivity: Human, Mouse, Rat
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Val291 of mouse VISTA protein.
Background
VISTA (V-Domain Ig Suppressor of T Cell Activation) is a negative checkpoint control protein that regulates T cell activation and immune responses. VISTA, which contains a single Ig-like V-type domain, a transmembrane domain, and an intracellular domain, has sequence similarity to both the B7 and CD28 family members. Although primarily expressed by myeloid cells, VISTA is also expressed by CD4+, CD8+, and FoxP3+ T-cells. Thus, VISTA is described as both a ligand and a receptor (1-3). Blocking VISTA induces T-cell activation and proliferation, and potentiates disease severity in the EAE model (1). Furthermore, genetic deletion of VISTA in mice leads to spontaneous T-cell activation and chronic inflammation (4,5). In mouse models of cancer, neutralization of VISTA enhances T-cell proliferation and effector function and increases tumor infiltration, suggesting VISTA blockade could be an effective strategy for tumor immunotherapy (6,7).
Alternate Names
4632428N05Rik; Die; Dies1; differentiation of ESCs 1; GI24; Gi24 receptor; PD-1; PD-1H; Platelet receptor Gi24; V-set domain-containing immunoregulatory receptor; V-set immunoregulatory receptor; V-type immunoglobulin domain-containing suppressor of T-cell activation; VISTA; Vsir
