Genetically engineered, CE7-specific redirected immune cells expressing a
cell surface protein having an extracellular domain comprising a receptor
which is specific for CE7, an intracellular signaling domain, and a
transmembrane domain, and methods of use for such cells for cellular
immunotherapy of CE7+ neuroblastoma are disclosed. In one embodiment, the
immune cell is a T cell and the cell surface protein is a single chain
FvFc: .zeta. receptor where Fv designates the V.sub.H and V.sub.L chains
of a single chain monoclonal antibody to CE7 linked by peptide, F.sub.c
represents a hinge-C.sub.H2-C.sub.H3 region of a human IgG.sub.1, and
.zeta. represents the intracellular signaling domain of the zeta chain of
human CD3. DNA constructs encoding a chimeric T-cell receptor and a
method of making a redirected T cell expressing a chimeric T cell
receptor by electroporation using naked DNA encoding the receptor are
also disclosed.