Anti-Disialoganglioside 2 [14G2a]

Absolute Antibody

Anti-Disialoganglioside 2 [14G2a]

7

This antibody binds the GD2 antigen and GD2 expressing neuroblastoma cell lines with an affinity similar to the parent antibody.

This antibody is a IgG2a isotype switch variant of the murine parent antibody 14.18. This antibody can direct efficient complement-dependent cytotoxicity against neuroblastoma tumor cells and melanoma cell lines in vitro in the presence of human complement (PMID: 2720646). 14G2a was coupled to the ribosome-inactivating plant toxin gelonin with the heterobifunctional cross-linking reagentN-succinimidyl-3(2-pyridyldithio)propionate. The immunoreactivity and specificity of 14G2a-gelonin immunotoxin determined by ELISA. Assays for complement-dependent cytotoxicity (CDC) and antibody-dependent cellular cytotoxicity (ADCC) revealed that these functional properties of the native 14G2a antibody were also preserved in the 14G2a-gelonin immunotoxin (PMID: 1756537). An immunotoxin prepared by linked 14G2a via the bivalent linker N-succinimidyloxycarbonyl-amethyl-a-(2-piridyldithio)toluene to deglycosylated ricin A chain was shown to inhibit the protein synthesis of neuroblastoma cell lines IMRS and NMB (Gottstein et al., 1994). Treatment with 14G2a mAb (1-4 mg/kg cumulative dose given as five i.v. daily administrations) dramatically reduced the metastatic spread of NB cells and prolonged the long-term survival of treated mice in a dose-dependent manner (PMID: 12880983). This antibody is also reported to be used in the study of interactions between peptides mimicking the GD2 ganglioside using flow ctyometry and ELISA (PMID: 21455557).

Flow Cytometry, ELISA

ELISA; FC; Therapeutic;

Research Use Only

Monoclonal

14G2a

Human

IgG1

This chimeric human antibody was made using the variable domain sequences of the original Mouse IgG2a format, for improved compatibility with existing reagents, assays and techniques.

Human

Human

The original murine parent antibody was generated against human neuroblastoma cell line LAN-1. This IgG2a isotype version was then generated by class switching of the murine parent antibody 14.18 (IgG3).

-20°C,2°C to 8°C

12352203