Biotech company Dendreon (Seattle) found for prostate cancer vaccine, called Provenge. The procedure, blood taken from patients, then sent to a lab. Technicians extract immune cells known as APC (antigen presenting cell) from blood samples TSB. From here, Dendreon TSB combine immune cells with a protein on the surface of prostate cancer cells. Added ingredients also immunity-booster (immune booster). APC will work if mixed with protein immune booster and cancer cells. Then the prostate cancer protein will move to the cell surface that has been "activated". Then, these activated APC that have been inserted back into the bloodstream of prostate cancer patients.
So far, the most difficult to treat cancer because the immune system does not react against cancer cells. Kan usually when there is infection or viruses, our immune system will recognize it as foreign. Provenge vaccine purposes is to create immune system recognize and destroy cancer cells. APC is activated when the blood back into the patient, the APC will be in contact with T cells (white blood cells 'seek and destroy' foreign body). Then the T cells will also be activated. T cells recognize cancer cells / tumors as 'criminals' or foreign body, and will hunt down and destroy cancer cells (foreign matter) is.
Vaccines administered intravenously three dose / three times in a few weeks. But the price is still expensive, because the labor-intensive, and patient-specific, it costs about 50-75 thousand USD. Meanwhile, while waiting for the FDA announcement, Dendreon shares jumped 19%. Wow!
So far, the most difficult to treat cancer because the immune system does not react against cancer cells. Kan usually when there is infection or viruses, our immune system will recognize it as foreign. Provenge vaccine purposes is to create immune system recognize and destroy cancer cells. APC is activated when the blood back into the patient, the APC will be in contact with T cells (white blood cells 'seek and destroy' foreign body). Then the T cells will also be activated. T cells recognize cancer cells / tumors as 'criminals' or foreign body, and will hunt down and destroy cancer cells (foreign matter) is.
Vaccines administered intravenously three dose / three times in a few weeks. But the price is still expensive, because the labor-intensive, and patient-specific, it costs about 50-75 thousand USD. Meanwhile, while waiting for the FDA announcement, Dendreon shares jumped 19%. Wow!
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