A small clinical trial using gold nanoparticles that act as tumor-seeking missiles on a mission to remove prostate cancer has begun at The University of Texas Health Science Center at Houston (UTHealth). It is the first trial of its kind in the world.
The nanoparticles, or nanoshells, are made of small layers of silica glass formed into a sphere and wrapped in a thin layer of gold. The shells seek out and saturate cancerous cells, and their advanced vibrational properties are then harnessed to cause the tumorous tissue to pulse with extreme temperature when light is applied through a laser specifically designed to excite the particles. The oscillation kills the cancer cells while preserving the healthy tissue, avoiding the nerves and urinary sphincter. This procedure is the first in the world that is precise enough to potentially avoid negative ramifications like urinary incontinence or sexual impotency.
“This therapy could be life-changing for men diagnosed with prostate cancer and I’m honored to be among the first doctors the U.S. Food and Drug Administration approved to put it to the test,” said Steven Canfield, M.D., chair of the division of urology at McGovern Medical School at UTHealth, who recognized the possibility of the nanoparticles to treat prostate cancer and helped developed the trial to test the theory.
Prostate cancer begins when cells in a man’s prostate gland mutate and start to grow uncontrollably. Other than skin cancer, prostate is the most common cancer in American men, with an estimated 1 out of 9 men diagnosed. The American Cancer Society estimates 29,430 men died from the disease in 2018 alone.
Treatment options have traditionally included radical prostatectomy, which is the removal of the prostate gland and some of the tissue around it, radiation therapy and cryotherapy, among others. These methods carry the potential to have a negative impact on urinary function and sexual performance.
Image Credit: UT Health
Thanks to Heinz V. Hoenen Follow him on twitter: @HeinzVHoenen
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