A normal gene in overdrive is culprit for Leukemia, treated with drug for kidney cancer, now patient’s cancer is in remission

ST. LOUIS — Genetics researchers at Washington University, one of the world’s leading centers for work on the human genome, were devastated. Dr. Lukas Wartman, a young, talented and beloved colleague, had the very cancer he had devoted his career to studying. He was deteriorating fast. No known treatment could save him. And no one, to their knowledge, had ever investigated the complete genetic makeup of a cancer like his.
So one day last July, Dr. Timothy Ley, associate director of the university’s genome institute, summoned his team. Why not throw everything we have at seeing if we can find a rogue gene spurring Dr. Wartman’s cancer, adult acute lymphoblastic leukemia, he asked? “It’s now or never,” he recalled telling them. “We will only get one shot.”
Dr. Ley’s team tried a type of analysis that they had never done before. They fully sequenced the genes of both his cancer cells and healthy cells for comparison, and at the same time analyzed his RNA, a close chemical cousin to DNA, for clues to what his genes were doing.
The researchers on the project put other work aside for weeks, running one of the university’s 26 sequencing machines and supercomputer around the clock. And they found a culprit — a normal gene that was in overdrive, churning out huge amounts of a protein that appeared to be spurring the cancer’s growth.
Even better, there was a promising new drug that might shut down the malfunctioning gene — a drug that had been tested and approved only for advanced kidney cancer. Dr. Wartman became the first person ever to take it for leukemia.
And now, against all odds, his cancer is in remission and has been since last fall.
While no one can say that Dr. Wartman is cured, after facing certain death last fall, he is alive and doing well. Dr. Wartman is a pioneer in a new approach to stopping cancer. What is important, medical researchers say, is the genes that drive a cancer, not the tissue or organ — liver or brain, bone marrow, blood or colon — where the cancer originates.
One woman’s breast cancer may have different genetic drivers from another woman’s and, in fact, may have more in common with prostate cancer in a man or another patient’s lung cancer.
Under this new approach, researchers expect that treatment will be tailored to an individual tumor’s mutations, with drugs, eventually, that hit several key aberrant genes at once. The cocktails of medicines would be analogous to H.I.V. treatment, which uses several different drugs at once to strike the virus in a number of critical areas.
Ref: http://www.nytimes.com/2012/07/08/health/in-gene-sequencing-treatment-for-leukemia-glimpses-of-the-future.html?_r=0

Connie’s Comments
Normal genes in overdrive: What makes a normal gene in overdrive and behave abnormally making cancer cells grow? Can we stop normal genes from behaving in this manner, going overdrive? Can factors such as exitotoxicity and inflammation drive normal genes to overdrive?
Kidney cancer drugs are also used for other cancer types: Can we use it for other types of cancers? They did for a patient with leukemia after a complete analysis of his genes.
Personalized gene analysis: The story above was a result of detailed analysis/mapping of one patient’s gene which costs around $100,000. The public could not afford this price. But, the story above tells us that cancer cure is specific to the person’s gene make-up

One comment

Leave a Reply