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To: Montana Wildhack who wrote (6495)1/18/2001 11:40:43 PM
From: DaveAu  Read Replies (1) | Respond to of 14101
 
Wolf,

I thought the stock went down today because you and the Chief sold. After all, they've cured Arthritis again - I read it in the National Post:

nationalpost.com

Researchers claim 'Holy Grail'
Prolific Toronto team tags a protein as the off switch of the immune system

Tom Arnold
National Post

A team of Canadian scientists has discovered the "Holy Grail" of the
signalling process the human body uses to control its immune system, a
finding that could one day halt the development of cancer, diabetes,
arthritis and heart disease.

Researchers have discovered that the protein CD45 contains a master
switch capable of turning off hormones and proteins in the immune system.
The switch could help shut down growth of diseases, stave off viral
infections and prevent rejection of transplanted organs.

"It is the Holy Grail of the body's cellular signalling system," said lead
researcher Dr. Josef Penninger, an immunologist at the Amgen Institute
and the Ontario Cancer Institute, a research centre at Princess Margaret
Hospital in Toronto. "Our cells rely on the delicate balance of
communications signals to grow normally and produce blood cells.
However, when a signal cannot be stopped, the cells overgrow and we run
into trouble. We have discovered that it is CD45 that sends the 'ceasefire'
signal to cells."

Dr. Penninger called the finding one of his most important discoveries.
"People understand very much how you turn on a cell but people have had
not much idea about how the master off switch works. Everyone was
looking for it. Finding this out is kind of like the ultimate prize in this
field."

The research is published in today's issue of Nature, an international
journal. It is Dr. Penninger's 126th scientific finding to be published.

It marks the sixth major discovery to emerge from the same Canadian lab
in less than two years. Dr. Penninger's recent research has attracted
headlines around the world.

"It's an important step in that it identifies a new function for CD45,"
concluded Dr. John Cambier, chairman of the department of immunology at the University of
Colorado Health Sciences Center and the National Jewish Medical and Research Center in Denver.
He is considered an international expert on CD45.

"I'm not sure that I would consider it the Holy Grail of understanding regulation of cell growth.
But nonetheless the observations are very important because they do illustrate a new function in
regulation of growth."

The human body contains tens of thousands of CD45, a protein that sits on the surface of red
and white blood cells. First discovered 13 years ago, it was believed the protein played a limited
role with two different types of cells.

"We set out to find additional function of CD45 just based on the idea that there must be
something else," Dr. Penninger said of his 13-member team.

"In 1993 somebody told me that we know all about CD45 and we will never find anything new
about it," Dr. Penninger said.

The researchers genetically engineered mice that could not make the protein so they could
compare how these mice and normal mice fared against a virus.

"If there's a virus infection, our lymph nodes are swelling up but when the virus is killed the
system must be shut down," said Dr. Penninger. "For some people it doesn't. And if you cannot
stop the system, what we get is tumours because the cells overgrow, or auto-immune diseases
like diabetes or multiple sclerosis because our cells cannot stop attacking."

Scientists will now look to develop a drug capable of switching off the protein, he said.

For instance, since most cancers require particular cells to grow, he said, a new drug that will
interfere with the protein and turn off CD45 could halt the proliferation of cancerous cells.

Dr. Arthur Weiss, an immunologist at the University of California in San Francisco, called the
discovery "interesting and provocative. I've heard rumours about it. It is an unexpected and
interesting finding."

Dr. Penninger has emerged as a leader in Canada's research community. He came to Toronto
from Austria in 1990 to work with Dr. Tak Mak, a well-known immunologist. By 1993, he had his
own lab.

Last year, he discovered the molecule that regulates movement of white blood cells, a major
finding that could one day lessen the likelihood of heart attack, stroke and dying from the
flesh-eating disease. His lab also solved the genetic mystery of how a common, contagious cold
virus carried by 70% of the human population triggers heart disease. The findings will help
predict who is at serious risk of cardiovascular disease and how it can be prevented.

Dave



To: Montana Wildhack who wrote (6495)1/19/2001 10:22:47 AM
From: Joe Krupa  Respond to of 14101
 
Wolf,

Another interesting tidbit from the Nomura website under Healthcare "M&A and Licensing."

Healthcare-Focused Strategic Advice

Nomura advises on the full range of mergers, acquisitions, divestments and investments within the healthcare sector with a particular focus on cross-border transactions. Nomura’s specialisation in the healthcare sector allows us to provide industry-driven strategic advice on all types of acquisition structure. Our technical focus enables us to direct intensive due diligence on potential acquisition or merger candidates. Our broad range of corporate finance experience allows us to advise on the optimal structuring and financing solutions.


Makes me wonder if Nomura had a hand in bringing Dimethaid and Provalis together.

Looking back at my house position database for DMX (going back to Jan 98), I noticed that Nomura acquired 42,600 shares of Dimethaid in June & July '98. A small number, but indicates somebody there was aware of Dimethaid back then.

Joe