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Cancer Resistance Technique Moves To Human Trials
TaeKwonDood tips us to news that a new cancer resistance treatment is going into clinical trials after being quite successful at eradicating cancer in mice. Researchers discovered that certain white blood cells called granulocytes from cancer-immune mice were able to cure cancer in other mice. Now, doctors are putting out the call for healthy granulocyte donors in order to test how well it works on humans. The article quotes lead researcher Zheng Cui saying, "In mice, we've been able to eradicate even highly aggressive forms of malignancy with extremely large tumors. Hopefully, we will see the same results in humans. Our laboratory studies indicate that this cancer-fighting ability is even stronger in healthy humans."
Not to be rude but you, good sir, are talking out of your ass. My brother was 14 when he died of pancreatic cancer. He wasn't suffering from "psychological conditions," he wasn't "unwilling to forgive someone" for some imaginary event that caused his body to somehow psychosomatically create the cancer that killed him. You want to know what I think caused his cancer? I think it was Doe Run and Dow Chemical polluting the crap out of the everything around them. We lived in Herculaneum, MO for the first 10 years of his life, and it wouldn't surprise me in the least if that was the cause. Your touchy-feely approach on this smacks of New Age "science" with nothing to back it up. "Oh it was their own feelings that did it!" Right. I suppose next you're going to start telling people that Thetans are causing all the world's ills.
God, schmod. I want my monkey man!
I just spent 2 days reading a few articles about this general area of research in last week's New England Journal of Medicine, so let me try to explain this to my fellow /.r's who so generously explain to me about warez and the penguin.
Doctors now believe that cancer goes through several stages before it becomes a problem. Cells become cancerous all the time, but usually the immune systen destroys them. To simplify a bit, immune cells such as dendrocytes (which is the hot immune cell these days) recognize cancer proteins. Dendrocytes take a piece of the cancer protein to a T cell, and the T cell kills the cancer cells. There's a great explanation of the immune process on Kimball's Biology Pages http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/A/AntigenPresentation.html, and if you take a few minutes to figure it out you'll understand one of the most amazing discoveries of the last century.
The reason we get cancer is that sometimes that process doesn't work. All it takes is one time during your lifetime when a cancer cell "figures out" a way to evade the immune system, and the cancer takes off.
It obviously occurs to doctors that it would be cool (and probably win a Nobel prize) if they could figure out some way to goose the immune system into fighting cancer, just the way they goose it into fighting viruses with vaccines.
One guy who tried that was Steven Rosenberg http://en.wikipedia.org/wiki/Steven_Rosenberg at the NIH. Rosenberg took melanoma cells from patients, and tried to stimulate the patient's immune system with a molecule called interleukin-2 that cells use to signal immune attacks. I remember reading about that around 1984, I think. The cancer slowed down but it came back. Rosenberg has been working on it ever since.
I remember seeing a cover headline in Fortune magazine back then about Rosenberg, to the effect, "Cure for cancer." (No question mark.) Do you suppose the media hype these things?
In order to understand cancer research, you have to understand that they can kill cancer cells in laboratory bottles, they can cure cancer in mice, but when they try to kill cancer cells in humans, time and again, it doesn't work. When it finally works in humans, that's news. The other thing you have to understand is that there are many treatments that make cancer tumors shrink or disappear for a while, but they usually come back. Cancer patients don't want the cancer to go away for 6 months -- they want it to go away forever. There are a few cancers that can sometimes be cured, like testicular cancer and childhood leukemia, and maybe some prostate cancers, but most of the time, for the big 3 (colon, breast, lung) oncologists are just trying to extend life. Of course, if you're 65 and your doctor can keep you alive for another 20 years with colon cancer or leukemia, that's not so bad. Most of the successful treatments for cancer extend the life of a cancer patient from, say, 20 months to 25 months, or 40 months to 45 months, but sometimes they get a really big jump, and for people with chronic myelogenic leukemia, imatinab (Gleevec) can extend their lives indefinitely.
Anyway, the really big news is that somebody actually managed to get a treatment like Rosenberg's to work on a real human with melanoma, who seems to be cured after 2 years. This was published in the New England Journal of Medicine, Treatment of metastatic melanoma with autologous CD4+ T cells against NY-ESO-1, Naomi Hunder et al., 358:2698 http://content.nejm.org/cgi/content/short/358/25/2698 In the past, they've gotten melanoma (and kidney cancer) to regress for a while, but it came back. This time it seems to be gone for good -- in one patient.
Basically, they had a patient with melanoma that had spread to his lungs. He had T cells that