Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: UNIPROT:O76050 (
neu
)
3,969
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
Recruitment
of immune cells to tumor cells targeted by a therapeutic antibody can heighten the antitumor efficacy of the antibody. For example, p185(her2/
neu
)-targeting antibodies not only downregulate the p185(her2/
neu
) kinase (ERBB2) but also trigger complement-dependent cytotoxicity (CDC) and antibody-dependent cellular cytotoxicity (ADCC) through the antibody Fc region. Here, we describe a generalized strategy to improve immune cell recruitment to targeted cancer cells, using a modified scFv antibody we call a "Grababody" that binds the target protein and endogenous immunoglobulins. The model system we used to illustrate the use of this platform recognizes p185(her2/
neu
) and includes an IgG binding domain. The recombinant scFv Grababody that was created recruited circulating human IgGs and attracted immune cells carrying Fc receptors to tumor cells that expressed p185(her2/
neu
). The presence of the IgG binding domain significantly enhanced CDC and ADCC activity and improved antitumor activity in vivo. Our results illustrate a novel general approach to improve antibody-like proteins for therapeutic applications.
...
PMID:scFv-based "Grababody" as a general strategy to improve recruitment of immune effector cells to antibody-targeted tumors. 2339 86
