What is the effect of herceptin (trastuzumab) on tumor?

To kill cancer cells. Herceptin (trastuzumab)-or traztuzumab is an humanized antibody againsts her2neu receptor. This biological therapy is given to treat certain cancers that are positive for her2neu receptors on their cancer cells. Once the Herceptin (trastuzumab) binds the her2neu receptors on the cancer cells, it will supress cancer cells proliferation/growth that lead to cancer cells stasis and eventually will apoptosis/die.
Herceptin (trastuzumab) Trasuzumab, is a humanized antibody to the her-2-neu receptor, in the erb family of receptors. It blocks these receptors from their abiliy to institute cell cycling, and thus those expresing her-2 neu antigen/receptor can be blocked, and teh cells can apoptose.

Related Questions

Could herceptin (trastuzumab) be used for other types of cancer such as brain tumors?

Herceptin (trastuzumab) ... Is used in malignancies that over-express the her2 protein. It was initially approved for breast cancer, now also approved for use in her2 + gastric cancer. I would guess there is research with it in other cancer types but to my knowledge those are the 2 cancers for which it would be covered. Thank you for your service. Read more...