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Cancer vaccine based on the bacterium Listeria monocytogenes, can cure mice with breast tumors

A team from the University of Pennsylvania School of Medicine has shown that by using a cancer vaccine based on the bacterium Listeria monocytogenes, they can cure mice with established breast tumors. Cancer vaccines, which are more properly described as immunotherapy, work by boosting an immune response against tumor-associated antigens.

27 Sep 2005

Vaccine candidate? Researchers synthesize oligosaccharide from anthrax pathogen

For weeks a white powder caused fear and shock for the American population: a few days after the attacks on September 11th, 2001, four innocent people became the victims of letters that contained the powder - spores of the anthrax pathogen. German researchers have now synthesized a molecule characteristic of anthrax in the laboratory which may be the basis for a new anthrax vaccine.

26 Sep 2005

Surprising immune system cells discovery

Immune system cells are connected to each other by an extensive network of tiny tunnels that, like a building's hidden pneumatic tube system, are used to shoot signals to distant cells.

26 Sep 2005

Increasingly virulent Staph infections

In a "Brief Report" in the 22 September 2005 issue of the New England Journal of Medicine, researchers at the University of Chicago describe three cases of rapidly progressive and ultimately fatal Staphylococcus aureus infections in small children.

26 Sep 2005

New way to create a permanent chemical bond between antibiotics and titanium

Infections associated with inserting a medical device can be devastating, painful, and cause prolonged disability, costing tens of thousands of dollars.

26 Sep 2005

Set of simple "rules" that nature appears to use to design proteins

By examining how proteins have evolved, UT Southwestern Medical Center researchers have discovered a set of simple "rules" that nature appears to use to design proteins, rules the scientists have now employed to create artificial proteins that look and function just like their natural counterparts.

26 Sep 2005

Research highlights the role of viral sequence analysis in improving our overall understanding of hepatitis A cases in the U.S.

Novel use of genetic testing methods helped public health officials control and limit the further spread of four outbreaks of foodborne hepatitis A virus in 2003 related to the consumption of green onions, according to a detailed analysis published in the October 15 issue of The Journal of Infectious Diseases, now available online.

26 Sep 2005

HIV-infected macrophages in the brain continuously travel to part of the brain Alzheimer's disease often damages

Bacteria-eating cells that generally fight infection may cause dementia in HIV patients, University of Florida and University of California at San Francisco researchers have found.

26 Sep 2005

Definitive multiple sclerosis linkage screen

A cluster of genes on chromosome six is the only one that plays a significant role in multiple sclerosis (MS), according to the most complete genetic study to date in the disorder, presented at the 130th annual meeting of the American Neurological Association in San Diego.

22 Sep 2005

Simple organism can produce 10 trillion varieties of a single protein

A team led by University of California, San Diego biochemists has discovered the mechanism by which a simple organism can produce 10 trillion varieties of a single protein, a finding that provides a new tool to develop novel drugs.

21 Sep 2005

Antibiotic resistance has put humans in an escalating 'arms race' with infectious bacteria

...as scientists try to develop new antibiotics faster than the bacteria can evolve new resistance strategies. But now, researchers have a new strategy that may give them a leg up in the race -- reproducing in the lab the natural evolution of the bacterial enzymes that confer resistance.

21 Sep 2005

Drug that blocks acid buildup inside cells revs up the immune response to vaccines

Reporting in the current issue of The Journal of Experimental Medicine, Vincenzo Barnaba and his team at the University of Rome show that people receiving booster shots against hepatitis B virus developed more robust immune responses if given a widely used anti-malaria drug called chloroquine.

21 Sep 2005

Vaccine against group B streptococcus

Common bacteria that live harmlessly in the gastrointestinal tract and vagina of 25 percent of women can become lethal if a newborn gets exposed to them during birth.

20 Sep 2005

Periodontal disease develops much earlier than dentists and other health professionals thought

Periodontal disease -- a progressive, eventually painful and disruptive condition in which bacteria attack gums and the hidden roots of teeth -- develops much earlier than dentists and other health professionals thought, a major new study concludes.

20 Sep 2005

Gaps in the intestinal barrier could be a cause of inflammatory diseases of the gut such as Crohn's Disease

Their research, led by Professor Alastair Watson in the University's Faculty of Medicine, could have important implications for the treatment of patients with diseases like Crohn's - an inflammatory bowel disorder that causes severe ulceration in the intestine, leading to pain, bleeding and diarrhoea.

20 Sep 2005

Prions rapidly 'remodel' good protein into bad

Two Brown Medical School biologists have figured out the fate of healthy protein when it comes in contact with the infectious prion form in yeast: The protein converts to the prion form, rendering it infectious. In an instant, good protein goes bad.

19 Sep 2005

Cellular mechanism discovery could lead to new treatments for rheumatoid arthritis, multiple sclerosis and Crohn's disease

A major finding by researchers at the La Jolla Institute for Allergy & Immunology (LIAI) has identified a previously unknown cellular mechanism that acts as an off switch for immune system function.

12 Sep 2005

Nuclear receptor proteins could change anti-inflammatory treatments

Several nuclear receptor proteins appear to overlap in their ability to exert anti-inflammatory effects, according to new research by scientists at the University of California, San Diego (UCSD).

12 Sep 2005

Bacteria lurking in household dust produce chemicals that may trigger asthma

These bacterial chemicals, called endotoxins, particularly those found on bedroom floors, were linked with increased respiratory problems in adults.

7 Sep 2005

Researchers uncover how the inhaled form of anthrax disarms bacteria-fighting white blood cells before they can fend off the disease

The lethal toxin in anthrax paralyzes neutrophils, the white blood cells that act as the body's first defense against infection, by impairing how they build tiny filaments that allow them to crawl throughout the body and eat invading bacteria.

6 Sep 2005

Bacteria News and Research

Cancer vaccine based on the bacterium Listeria monocytogenes, can cure mice with breast tumors

Vaccine candidate? Researchers synthesize oligosaccharide from anthrax pathogen

Surprising immune system cells discovery

Increasingly virulent Staph infections

New way to create a permanent chemical bond between antibiotics and titanium

Set of simple "rules" that nature appears to use to design proteins

Research highlights the role of viral sequence analysis in improving our overall understanding of hepatitis A cases in the U.S.

HIV-infected macrophages in the brain continuously travel to part of the brain Alzheimer's disease often damages

Definitive multiple sclerosis linkage screen

Simple organism can produce 10 trillion varieties of a single protein

Antibiotic resistance has put humans in an escalating 'arms race' with infectious bacteria

Drug that blocks acid buildup inside cells revs up the immune response to vaccines

Vaccine against group B streptococcus

Periodontal disease develops much earlier than dentists and other health professionals thought

Gaps in the intestinal barrier could be a cause of inflammatory diseases of the gut such as Crohn's Disease

Prions rapidly 'remodel' good protein into bad

Cellular mechanism discovery could lead to new treatments for rheumatoid arthritis, multiple sclerosis and Crohn's disease

Nuclear receptor proteins could change anti-inflammatory treatments

Bacteria lurking in household dust produce chemicals that may trigger asthma

Researchers uncover how the inhaled form of anthrax disarms bacteria-fighting white blood cells before they can fend off the disease

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