National Geographic Reporting

Normal immune cells that were genetically altered to recognize and destroy cancer cells have succcessfully shrunk large tumors, scientist say. Two of 17 people with advanced melanoma - a deadly form of skin cancer - who underwent experimental treatment with the engineered immune cells saw their tumors shrivel.

They believe they know why the other patients didn't respond to the treatments. They beleive it is because they had relatively poor (cancer-detecting) receptors available when they started the trial compared to the ones we have available now.

This is great news and I look froward to seeing where it goes from here. Most of us know people whom have been affected by cancer, I think it is great they are coming up with less invasive ideas that cause cures.