Mfg Part Number
Ab01018-2.0-VXX

Vector Labs Ab01018-2.0-VXX Anti-CTLA-4 [9D9], Mouse IgG2a, kappa (25 mg)

Quick Overview
The antibody was raised against CTLA-4.
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Product Class:VivopureX
Clone ID:9D9
Synonyms:CD152; CTLA4; Cytotoxic T-Lymphocyte Associated Protein 4; Insulin-Dependent Diabetes Mellitus 12; Celiac Disease 3; Ligand And Transmembrane Spliced Cytotoxic T Lymphocyte Associated Antigen 4; Cytotoxic T Lymphocyte Associated Antigen 4 Short Spliced Fo
Amount:25 mg
Application Codes Clone:block; IF
Shipping Temperature:Wet Ice
Buffer Composition:PBS only.
Original Format:IgG2b
Storage Temperature:All VivopureX products are formulated in PBS only without addition of preservatives. To ensure optimal storage and prevent microbial contamination, only open and dispense under sterile conditions.
Chimeric Use Statement:This reformatted mouse antibody was made using the variable domain sequences of the original Mouse IgG2b format, for improved compatibility with existing reagents, assays and techniques.
Specificity Statement:The antibody is specific for CTLA-4.
Application Notes:The antibody has been used to block CTLA-4 and has been shown to enhance T-cell immunity against tumours (Quezada et al, 2006). 9D9 also has an anti-B16/BL6 melanoma effect in non-irradiated tumour-bearing recipients when given as combinatorial therapy with Gvax (Peggs et al, 2009). Selby et al. (PMID: 24777248) show how conversion of the original mouse IgG2b to a mouse IgG2a greatly increases anti-tumor activity of the 9D9 antibody in both MC38 (C57BL/6 mice) and CT26 (BALB/c mice) models. This mechanism both involves blockade of CTLA4 as well as depletion of tumor-infiltrating regulatory T-cells. Fc Silent antibodies were shown to have reduced anti-tumor activity as they did not deplete tumor infiltrating regulatory T-cells, however they lead to expansion of peripheral Tregs.
More Information
Brand Vector Labs
UNSPSC 12161500