Anti-Disialoganglioside 2 mAbs [14G2a](MABL-1395)

MABL-1395

therapeutic, ELISA, FC

Engineer antibody

Human

14G2a

Recombinant Antibody

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

GD2

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).

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).

Mujoo et al. Functional properties and effect on growth suppression of human neuroblastoma tumors by isotype switch variants of monoclonal antiganglioside GD2 antibody 14.18. Cancer Res. (1989); 49(11):2857-61. PMID: 2720646

Describes the generation of isotype variants of murine parent antibody 14.18.

100 μg Purified antibody.

1 mg/ml.

Protein A affinity purified

PBS with 0.02% Proclin 300.

Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at - 20⁰C.