Wednesday, January 18, 2012
(HealthDay News) – The recently approved drug vemurafenib (Zelboraf) has been hailed as a breakthrough in the treatment of melanoma, the deadliest form of skin cancer. But roughly one-quarter of patients who take the medication develop a troublesome side effect: secondary skin cancers called squamous cell carcinomas.
Now, a new study by researchers at the Jonsson Comprehensive Cancer Center at the University of California, Los Angeles, and colleagues identifies the specific genetic mechanism that causes this side effect.
“What we found is that vemurafenib blocks the mutation that makes the melanoma grow, but when patients have skin cells with another mutation that’s probably induced from sun exposure, there the drug has the exact opposite effect and causes these squamous cell cancers to grow,” said Dr. Antoni Ribas, co-senior author of the study and an associate professor of hematology/oncology at UCLA.
What’s more, the findings suggest that combining vemurafenib, a BRAF inhibitor, with a drug called an MEK inhibitor — which blocks the other mutation — may not only prevent this side effect, but may also lead to an even more effective melanoma treatment, Ribas said.
“It needs to be demonstrated in clinical trials, but the theory is that if we give these two medications together up front, we will be punching the melanoma where it really hurts twice, and also preventing the growth of secondary skin cancers,” Ribas said.
In experiments in mice with the RAS mutation, the researchers showed that the combination of a BRAF inhibitor and an MEK inhibitor successfully blocked the growth of squamous cell cancers. This result may need replication in humans, since many findings in animals do not translate into effective treatments for people.
Ribas noted that the findings have implications beyond just melanoma, since RAS mutations are common in lung, pancreatic and colon cancer. “What this data also warns us is that we have to be very careful about using BRAF inhibitors in a setting where we don’t know what other mutations may be driving [the cancer],” he said. >> Read Full Story at Medline Plus
November 23, 2013
Since its founding in 1997, Golfers Against Cancer has had one goal: to fund cancer research. Virtually all the money raised in GAC tournaments and events goes directly to cancer research organizations, including the CHRISTUS Stehlin Foundation.
August 2, 2013
The 14th Annual Luci Bonneau Memorial Striking Against Breast Cancer Mixed Doubles Bowling Tournament is one of the most prestigious doubles events in America. The tournament includes a Pro-Am - your chance to bowl with the pros to cure breast cancer!
October 19, 2013 | 7:00 p.m.
Get ready to disco and dance the night away at The Friends of CHRISTUS Stehlin Gala! Premiering “STAYIN’ ALIVE,” The Greatest Bee Gees Tribute Band with Members of the Houston Symphony Orchestra and America’s first Mash Up Group, “THE COMPANY MEN.”
May 4, 2013
On May 4th, 2013, young women will take the field for the first time in an exciting powder puff football game with teams comprised of some of best and brightest in Austin. The game is designed to bring the passion and spirit of young community leaders together to support Young Texans Against Cancer.
“The new facility for the CHRISTUS Stehlin Foundation is an appropriate setting for an organization that has made an enormous contribution to the ongoing battle against cancer.”
Sister Lillian Anne Healy, CCVI,
Congregational Leader for Sister of Charity of the Incarnate Word
CHRISTUS Stehlin Foundation for Cancer Research will join CHRISTUS St. Catherine and CHRISTUS St. John in a new partnership with Houston Methodist.
There are currently 13.7 million cancer survivors in the United States and the number is expected to rise by 31 percent to 18 million by 2022, according to a new report. >> Click article title for more.