Growth factors are chemicals that stimulate a cell to divide.
Growth factors are transported around the body in the blood, and they attach to cells that have complementary growth factor receptors on their surface.
Some cells have too many growth factor receptors on their surface and so the cells continue to divide, forming a tumour.
Trastuzumab is used as a treatment for some cancers.
Trastuzumab works by binding to a specific growth factor receptor on a tumour cell. This stops the cell dividing and the cell dies.
What is trastuzumab?
a monoclonal antibody
2 )
a vaccine
3 )
an antibiotic
4 )
an enzyme inhibitor
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