Cancer development: new model proposed.

In an article scheduled to appear in the Annals of Epidemiology..................
http://www.annalsofepidemiology.org/

epidemiologist Cedric Garland, DrPH and his associates at the University of California San Diego's Moores Cancer Center propose that cancer, rather than commencing with genetic mutations, is initially caused by a reduction in the of ability of cells to stick together.

Research has shown that inadequate Vitamin D can result in a loss of stickiness between cells as well as a loss of differentiation, which causes cells to revert to a stem cell-like state. Additionally, extracellular calcium ions are necessary for intercellular adherence.

"The first event in cancer is loss of communication among cells due to, among other things, low vitamin D and calcium levels," explained Dr Garland, who is a professor of family and preventive medicine at the UC San Diego School of Medicine "In this new model, we propose that this loss may play a key role in cancer by disrupting the communication between cells that is essential to healthy cell turnover, allowing more aggressive cancer cells to take over.........................
http://www.lef.org/newsletter/2009/0602_New-Model-of-Cancer-Development-Propo...