Anti-HLA-G PE
Human leukocyte antigen G (HLA-G), belonging to MHC class I glycoproteins, plays important roles in both physiological and pathological immunotolerance. It gives an inhibitory signal to cytotoxic T cells, NK cells, monocytes, and some other immune cells. It also induces regulatory T cells and anti-inflammatory macrophages. HLA-G is important e.g. for maternal tolerance to the fetus, and for immunomodulation in particular adult tissues, such as in cornea, pancreatic islets, thymus and other. On the other hand, it is expressed in many solid and hematologic malignancies, where it contributes to evasion of the immune surveillance. HLA-G expression pattern in cancer is an important prognostic factor regarding a poor clinical outcome. Unlike most other MHC glycoproteins, HLA-G acts as an immune checkpoint molecule rather than as an antigen presenting molecule. It concerns both transmembrane and soluble HLA-G isoforms. Among other, HLA-G can promote Th2 immunological response and downregulate Th1 immunological response. For its benefits regarding allograft tolerance, including embryo implantation, soluble HLA-G (sHLA-G) can be used as a marker of developmental potential of embryos during the process of in vitro fertilization. Similarly, sHLA-G concentrations in maternal serum are decreased in preeclampsia. Transplanted patients with increased sHLA-G serum levels have improved allograft acceptance. On the other hand, increased sHLA-G can also indicate presence of malignant (sometimes also of benign) tumor cells. Another important topic is induction of HLA-G expression (sometimes associated with shedding of HLA-G from the cell surface) by some anti-cancer or anti-viral therapies, which can weaken the therapy effect. Monitoring of HLA-G in patients thus has a wide usage.
Product Specifications
Certification
RUO
Negative Species
Mouse
Immunogen
Recombinant human HLA-G refolded with beta2-microglobulin and peptide.
Target Antigen
HLA-G
Clone
MEM-G/9
Applications
FC (QC tested)
Concentration
0.1 mg/mL
Format
PE
Buffer
Stabilizing phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide
References & Citations
Other References
Storage Conditions
Store at 2-8°C. Protect from prolonged exposure to light. Do not freeze.
Specificity
Applications Notes
Flow cytometry: Recommended dilution: 1-4 μg/ml; positive control: JEG-3 human choriocarcinoma cell line.
Species
Human
CAS Number
9007-83-4
Isotype
Mouse IgG1
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