MET recombinant monoclonal antibodies are produced by cloning antibody genes into expression vectors, followed by transfection into host cells for large-scale production . They target the MET receptor, which binds hepatocyte growth factor (HGF) to activate downstream pathways like RAS-ERK, PI3K-AKT, and STAT3, driving processes such as wound healing and embryogenesis . Dysregulation of MET is implicated in cancers, making it a critical therapeutic target .
The development involves:
Immunization: Mice are immunized with synthetic MET-derived peptides or recombinant MET protein fragments .
Gene Cloning: Antibody genes from splenocytes are amplified via PCR and inserted into plasmids .
Expression: Vectors are transfected into mammalian cells (e.g., Expi293F) for antibody secretion .
Purification: Antibodies are isolated using affinity chromatography .
MET recombinant monoclonal antibodies are validated across multiple platforms:
Western Blot (WB): Detects MET at ~150–170 kDa in cell lysates .
Immunohistochemistry (IHC): Identifies MET overexpression in tumor tissues .
Flow Cytometry (FC): Quantifies MET surface expression on live cells .
Immunofluorescence (IF): Localizes MET in cellular compartments (e.g., kinetochores) .
Agonist vs. Antagonist Activity:
Clinical Relevance: Validated in gastric, renal, and breast cancer models .
Batch Consistency: Defined genetic sequences eliminate variability .
Engineerability: Modifications enhance affinity or species cross-reactivity .
Scalability: Suitable for high-throughput therapeutic production .