New cancer treatment hailed as a breakthrough, but since it’s based on a common, non-patented drug, it may be hard to find money for clinical trails:
A simple molecule, used for decades to treat children with rare
metabolic diseases, commits "immortal" cancer cells to a natural death
and could soon be used to treat many forms of cancer, according to a
University of Alberta researchers were excited to
discover that dichloroacetate (DCA) causes regression in several
cancers, including lung, breast and brain tumours.
DCA, a non-toxic compound comprised of "a couple of oxygens, a
couple of chlorides and a couple of carbons," appears to repair the
damage that cancer cells cause to mitochondria — the energy- producing
units in cells.
Mitochondria regulate cell death and because
cancer cells suppress their mitochondria, they achieve "immortality,"
Dr. Michelakis said. This appears to offer cancer cells a significant
advantage in growth compared to normal cells as well as protection from
many standard chemotherapies, he said.
DCA "puts life into the
mitochondria," making cancer cells more susceptible to apoptosis — a
natural cell suicide mechanism that enables a person to control cell
numbers and kill off cells that threaten his or her survival, he said.
being so small, is easily absorbed into the body, and after oral
intake, it can reach areas in the body that other drugs cannot —
making it possible to treat brain cancers.
It could one day be used in conjunction with traditional chemotherapies, Dr. Michelakis said.
DCA will enable the cell death mechanisms and then chemotherapy would
have a much easier job; you could use lower doses and [the chemotherapy
would be] less toxic," he said.
DCA affects cancer cells without affecting normal ones, he added.
the inexpensive drug has been used on both healthy and ill patients for
30 years, it can be immediately tested on people suffering from cancer,
Dr. Michelakis said.
But because DCA is not patented and is not
owned by a pharmaceutical company, it will be a challenge to find
funding to begin clinical trials, he said.
Occupational Diseases Kill More Than Workplace Accidents
The World Health Organization says that thousands of workers die each year from cancer related to asbestos, tobacco smoke, benzene, and other carcinogens. Saturday, April 28, 2007 was World Day for Safety and Health at Work. The day is intended…
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