Genetic tests buttress regular cancer screening

Summary:Your risk for developing an aggressive form of these cancers may be genetic, and testing for abnormalities can give us this crucial answer sooner.

Good news, guys.

Wake Forest researchers have identified a genetic variant leading to the most aggressive form of prostate cancer.

rs4054823 confers a 25% higher risk of having the nastier form of the disease.

More study is needed to find other variants that also show increased risk. That would be followed by creation of a genetic test that would tell people not only how bad their cancer is, but what their risk of getting an aggressive cancer is before they get it.

This is important, because "you have cancer" doesn't tell you much. Some men are having their prostates removed when it's not necessary, because if the cancer hasn't spread this effects a 100% cure. (If the cancer is slow-growing, you're better off with the prostate intact.) Others are losing their lives, thinking "prostate cancer" isn't that bad a deal. (I had a neighbor in this category. I miss him.)

It's identical to the problem we have with breast cancer. Women are losing breasts who don't have to. They are told to get annual screenings at age 40, but many screenings yield false positives, or catch cancers that are not that dangerous.

We had a scare like this in our family last year. A lump was found on my daughter's breast. A biopsy showed there was no cancer, but this sort of thing happens all the time. Some friends have to go through an annual dance with their doctors, learning there is a problem, getting new tests, then learning there is no problem.

Want something that will kill you? Worrying every year whether you're about to die from cancer will kill you.

Loyola University researchers have just announced a 21-gene test that can help some women avoid chemotherapy, and there are tests for the genetic markers of breast cancer risk, but so far genetic tests in this area are not popular.

This can, and will change. What the hullaballoo over annual screenings should tell us is we need to change what we say about breast and prostate cancer.

It's not a death sentence. Some cancers are highly aggressive. Others are not. Your risk for developing an aggressive form of these cancers may be genetic, and testing for abnormalities can give us this crucial answer sooner.

Annual screenings alone won't keep you safe. They could, in fact, leave you mutilated. What we need is more genetic information, about you and your cancer.

We're getting that.

(Note: I've never understood the deal with a Demon Deacon mascot. Isn't that sort of, well, contradictory? It's as crazy as Tulsa's "Golden Hurricane." I know, they're trying not to say tornado, but it sounds like someone is going to the bathroom in a high wind. Written by someone whose friends can't help always giving him the bird.)

This post was originally published on Smartplanet.com

Topics: Innovation

About

Dana Blankenhorn has been a business journalist since 1978, and has covered technology since 1982. He launched the Interactive Age Daily, the first daily coverage of the Internet to launch with a magazine, in September 1994.

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