Researchers at Fox Chase Cancer Center have successfully created a molecule that simultaneously attacks two separate molecules appearing on a cancer cell's surface, reports ScienceDaily.
The antibody-like molecule, nicknamed "ALM" by Fox Chase researchers, may slow cancer progression, or become a guidance system for delivering more aggressive drug therapies directly to cancerous cells, researchers told ScienceDaily. Their research findings appear in this month's British Journal of Cancer.
Most naturally occurring antibodies bind only to one specific target at a time, but researchers say ALM attaches simultaneously to two separate targets. ALM's specific targets are signaling proteins, ErbB2 and ErbB3, which researchers say connect to form a growth-promoting complex on the surface of many different cancer cells. This growth-promoting complex is often found in head and neck cancer along with drug-resistant breast cancer.
ALM was created by taking the "active anti-ErbB2 portion from one antibody and linking it with the anti-ErbB3 portion from another," reports ScienceDaily. Researchers, who like to refer to ALM as a delivery system and not a "warrior," say the molecule preferentially targets tumors cells with excess receptor complex over normal cells.
Rather than kill cancer cells, ALM is better suited to deliver cancer-killing drugs, researchers told ScienceDaily.