pCDCAR1 ErbB2 h(4FcεRIγ), T(CAR-T-2-L337-4G)
The vector of anti-ErbB2 chimeric antigen receptor (CAR) is constructed for the engineering of T cells to target human ErbB2. The T cells are genetically modified through transduction with a lentiviral vector expressing scFv of anti-ErbB2 antibody linked to a CD4 transmembrane domain and FcεRIγ signaling domains. And the vector product was designed as a medicament, in particular in the treatment of cancer and in adoptive, target-cell specific immunotherapy.
Targeting Cell Type
Discription of Signaling Cassetes
Cluster of Differentiation 4 (CD4) is a glycoprotein expressed on the surface of T helper cells, regulatory T cells, monocytes, macrophages and dendritic cells, and plays an important role in the development and activation of T cells. On T cells, CD4 is the co-receptor for the T cell receptor (TCR), and these two distinct structures recognize the Antigen-Major Histocompatibility Complex (MHC). CD4 signaling in CAR ensures specificity of the TCR-antigen interaction, prolongs the contact between the T cell and the antigen presenting cell and recruits the tyrosine kinase Lck, which is essential for T cell activation.
The high-affinity IgE receptor, also known as FcεRI, or Fc epsilon RI, is the high-affinity receptor for the Fc region of immunoglobulin E (IgE). FcεRI is a key molecule involved in allergic reactions. It is a tetramer composed of 1alpha, 1 beta, and 2 gamma chains. The gamma chains are also subunits of other Fc receptors. The scFv-based CARs engineered to contain a signaling domain from FcεRIγ have been shown to deliver a potent signal for T cell activation and function.
erb-b2 receptor tyrosine kinase 2
ERBB2; erb-b2 receptor tyrosine kinase 2; NEU; NGL; HER2; TKR1; CD340; HER-2; MLN 19; HER-2/neu; receptor tyrosine-protein kinase erbB-2; herstatin; p185erbB2; proto-oncogene Neu; c-erb B2/neu protein; proto-oncogene c-ErbB-2; metastatic lymph node gene 19 protein; human epidermal growth factor receptor 2; neuro/glioblastoma derived oncogene homolog; tyrosine kinase-type cell surface receptor HER2; neuroblastoma/glioblastoma derived oncogene homolog; v-erb-b2 avian erythroblastic leukemia viral oncoprotein 2; v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 2; v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog; CD28; Chimeric antigen receptor; T cell; Retrovirus; CARs; Lentivirus; chimeric T cell receptors; chimeric immunoreceptors; chimeric antigen receptors; scFv; OTI5C4
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