immunity News and Research

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Enhancement of vaccine-mediated antitumor immunity in cancer patients after depletion of regulatory T cells

Duke University researchers have now shown that selectively killing the population of regulatory T cells in cancer patients - cells that normally function to restrain the activity of the immune response - improves the ability of a cancer vaccine to stimulate tumor-specific T cells.

28 Nov 2005

Promising functional readouts of immunity in a blood-stage malaria vaccine trial

A malaria vaccine remains the most desired tool to combat the worsening malaria epidemic in many developing countries. Pierre Druilhe and colleagues (from the Institut Pasteur in Paris) have completed the first human trial of a vaccine based on MSP3, a protein present on the surface of the malaria parasite, with very encouraging results.

13 Nov 2005

Bird flu in two Kuwait birds a far weaker strain

According to health officials in Kuwait two birds infected with avian flu have been destroyed, but it seems the strain of the virus present in the birds is weaker than the one which has killed more than 60 people in Asia.

13 Nov 2005

Tryptophan metabolites play an important role in the immune system

Tryptophan is the source of Thanksgiving legend and grist for a "Seinfeld" episode, but it's not the chemical that you'd expect to find in Lawrence Steinman's lab.

7 Nov 2005

Dendritic cells tricked into action against cancer

A new type of immunotherapy in which dendritic cells are tricked into action against cancer when they are exposed to harmless pieces of viruses and bacteria is described in the November issue of Cancer Research.

1 Nov 2005

Canada wild ducks unlikely to have H5N1 virus

Canadian health officials say they have found a strain of avian flu in 33 wild migratory ducks, but it is unlikely to be the killer H5N1 strain which has spread from Southeast Asia to Europe.

31 Oct 2005

Vaccination against measles could prevent many more cases of SSPE, than previously thought

A new study has found wild-type measles virus in tissues from patients who died of a fatal brain infection, providing evidence against the notion that the strain of virus in the measles vaccine caused the infection.

30 Oct 2005

HDLs provide human immunity to certain parasites

For years biomedical researchers have known that high density lipoproteins, commonly called HDLs or "good cholesterol," are responsible for protecting humans from certain parasites, but couldn't explain how.

30 Oct 2005

Morphine withdrawal enhances hepatitis C virus (HCV) replicon expression

Researchers at the University of Pennsylvania have demonstrated that morphine withdrawal complicates hepatitis C by suppressing IFN-alpha-mediated immunity and enhancing virus replication.

30 Oct 2005

Possible toxic damage from inhaled nanoparticles

A physicist and a medical researcher at the University of Leicester have received a grant of £100,000 from the Engineering and Physical Sciences Research Council to look at possible toxic damage from inhaled nanoparticles used for a range of everyday purposes.

27 Oct 2005

New treatments suggest that cancer is on the run!

People suffering from cancer will be encouraged by a cluster of recent reports on successful new treatments for several different forms of cancer.

24 Oct 2005

Researchers learn to rapidly rebuild immunity in immune-suppressed cancer patients

Patients with multiple myeloma suffer from a malignant proliferation of plasma cells in their bone marrow. The standard treatment for this form of cancer is high-dose chemotherapy and transplantation of one's own blood-producing adult stem cells; however, this aggressive treatment wipes out the mature immune-system cells of patients – leaving them vulnerable to infection.

20 Oct 2005

Avian flu and planning for pandemic

Influenza season is almost upon us. While it is impossible to tell whether we are going to experience a usual flu season -- with one in every five people falling ill -- or whether we are facing a more serious problem such as a dangerous new strain capable of causing a global pandemic, information is important.

20 Oct 2005

Evidence is mounting to link toxoplasmosis with schizophrenia

Keep pet cats inside, stop feeding strays, cook meat sufficiently and reconsider the way the veterinary profession and public health agencies think - and teach - about the zoonotic pathogen Toxoplasma gondii.

18 Oct 2005

Researchers shed light on a key molecular switch in T helper cells

Defects in immune system cells called T helper cells may lead to diseases characterized by a faulty inflammatory response such as autoimmunity and asthma. Understanding the molecular steps involved in how T helper cells mature may help researchers develop treatments for these diseases.

17 Oct 2005

Antibody-dependent enhancement

Some viruses' ability to exploit the human body's own defenses to increase their replication may be both a blessing and curse, according to the findings of a study conducted by researchers at the Johns Hopkins Bloomberg School of Public Health.

16 Oct 2005

Strain of avian influenza highly resistant to Tamiflu

An avian influenza virus isolated from an infected Vietnamese girl has been determined to be resistant to the drug oseltamivir, the compound better known by its trade name Tamiflu, and the drug officials hope will serve as the front line of defense for a feared influenza pandemic.

16 Oct 2005

Europe frantically prepares for possible bird flu pandemic

The confirmation by British laboratory tests that the H5N1 deadly strain of bird flu had reached mainland Europe for the first time, has prompted Romanian authorities to slaughter poultry and send in doctors.

16 Oct 2005

Infants and adolescents vaccinated against hepatitis B are protected for over 10 years after immunisation

...concludes a study in this week’s issue of The Lancet. The authors state that booster doses of vaccine do not seem necessary to ensure long-term protection.

13 Oct 2005

Whooping cough vaccine 90 percent effective

A vaccine to protect adults and adolescents against illness due to Bordetella pertussis infection--or whooping cough--has proved more than 90 percent effective in a national, large-scale clinical study, according to research results published in this week's issue of The New England Journal of Medicine.

12 Oct 2005