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キーワード:
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要旨:
Receptor tyrosine kinases (RTKs) are the primary mediators of the signaling network that transmit extracellular signals into the cell. Gene amplification and/or overexpression of RTK proteins or functional alterations caused by mutations in the corresponding genes or abnormal autocrine-paracrine growth factor loops contribute to constitutive RTK signaling, ultimately resulting in the manifestation of dysregulated cell growth and cancer. The mechanism of uncontrolled RTK signaling that leads to cancer has provided the rationale for anti-RTK drug development. Strategies towards the prevention and interception of RTK signaling include monoclonal antibodies, small-molecule inhibitors, immunotoxins and antisense oligonucleotides.
