VISTA (D5L5T) XP® Rabbit mAb (Alexa Fluor® 555 Conjugate) #23245
- IF
Inquiry Info. # 23245
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Supporting Data
| REACTIVITY | H M R |
| SENSITIVITY | Endogenous |
| MW (kDa) | |
| Source/Isotype | Rabbit IgG |
Application Key:
- IF-Immunofluorescence
Species Cross-Reactivity Key:
- H-Human
- M-Mouse
- R-Rat
Product Information
Product Description
Product Usage Information
| Application | Dilution |
|---|---|
| Immunofluorescence (Frozen) | 1:100 |
Storage
Protocol
Specificity / Sensitivity
VISTA (D5L5T) XP® Rabbit mAb (Alexa Fluor® 555 Conjugate) recognizes endogenous levels of total VISTA protein.
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).
- Wang, L. et al. (2011) J Exp Med 208, 577-92.
- Flies, D.B. et al. (2011) J Immunol 187, 1537-41.
- Lines, J.L. et al. (2014) Cancer Res 74, 1924-32.
- Wang, L. et al. (2014) Proc Natl Acad Sci U S A 111, 14846-51.
- Liu, J. et al. (2015) Proc Natl Acad Sci U S A 112, 6682-7.
- Le Mercier, I. et al. (2014) Cancer Res 74, 1933-44.
- Lines, J.L. et al. (2014) Cancer Immunol Res 2, 510-7.
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