Immune System News and Research

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Flu virus migrates globally all year round

The influenza A virus does not lie dormant during summer but migrates globally and mixes with other viral strains before returning to the Northern Hemisphere as a genetically different virus, according to biologists who say the finding settles a key debate on what the virus does during the summer off season when it is not infecting people.

21 Sep 2007

Testes offer a promising new source of stem cells

After a decade of research, Howard Hughes Medical Institute scientists have succeeded in reprogramming adult stem cells from the testes of male mice into functional blood vessels and contractile cardiac tissue.

20 Sep 2007

Discovery of cause of Job's syndrome

The rare immunodeficiency disorder known as Job's syndrome is caused by a specific genetic mutation that both overstimulates and understimulates the human immune system, leading to harmful bacterial and fungal infections and the physical features characteristic of the syndrome, according to two independent groups of scientists, one from the National Institutes of Health (NIH) and the other from the Tokyo Medical and Dental University.

20 Sep 2007

Pregnancy may slow AIDS progression

A new study may help put to rest fears that pregnancy accelerates progression to full-blown AIDS in women with HIV receiving antiretroviral therapy.

20 Sep 2007

Common abdominal pain may be due to a potentially treatable newly recognized inflammatory reaction

As many as one in four people in westernized countries experience pain or discomfort in their upper abdomen, and physicians have almost nothing to offer except anti-acid medicines, which usually don't work.

20 Sep 2007

Re-engineered human T cells effectively target and kill cancerous B cells

Human white blood cells, engineered to recognize other malignant immune cells, could provide a novel therapy for patients with highly lethal B cell cancers such as acute lymphoblastic leukemia (ALL), according to researchers at Memorial Sloan-Kettering Cancer Center (MSKCC).

18 Sep 2007

Sexual function affected by stem cell transplant according to long-term study

A long-term study found that a type of stem cell transplant used for patients with life-threatening diseases, such as leukemia and lymphoma, results in decreased sexual function and activity for recipients.

18 Sep 2007

Sanofi Pasteur's new H5N1 vaccine shows promise

Sanofi pasteur, the vaccines division of sanofi-aventis Group, has announced data showing that its new investigational H5N1 pandemic influenza vaccine containing a proprietary adjuvant achieved a high immune response at the lowest dose of H5N1 antigen reported to date.

18 Sep 2007

Rheumatoid arthritis genes

A paper published this week in the open access journal PLoS Medicine provides strong evidence that one specific part of the genome is associated with rheumatoid arthritis.

18 Sep 2007

Chronic stress can steal years from caregivers' lifetimes

The chronic stress that spouses and children develop while caring for Alzheimer's disease patients may shorten the caregivers' lives by as much as four to eight years, a new study suggests.

18 Sep 2007

Chronic infection persists by targeting stromal cell network in lymphoid organs

One of the biggest challenges to treating infectious diseases and developing preventive vaccines is the ability of many chronic infections to suppress the immune T-cell response over time.

18 Sep 2007

New technology for cancer screening listens for the signs of cancer

Cancer-sensing devices built as cheaply and efficiently as wristwatches - using many of the same operating principles - could change the way clinicians detect, treat and monitor cancer in patients.

18 Sep 2007

Nanoparticle that delivers vaccines more effectively

Good news for public health: Bioengineering researchers from the EPFL in Lausanne, Switzerland, have developed and patented a nanoparticle that can deliver vaccines more effectively, with fewer side effects, and at a fraction of the cost of current vaccine technologies.

18 Sep 2007

Organ transplantation for HIV-positive patients

Not long ago, organ transplantation was not considered an option for HIV infected patients.

17 Sep 2007

LL37 peptide provides a new potential target for autoimmune disease

A human peptide that acts as a natural antibiotic against invading microbes can also bind to the body's own DNA and trigger an immune response in the absence of an infection, a research team led by scientists at The University of Texas M. D. Anderson Cancer Center reports in an early online publication in Nature.

17 Sep 2007

Immune system police recognize good and bad guys in the body

Immune system police are as good at recognizing bad guys, such as bacteria and viruses, as they are our own tissue, researchers say.

17 Sep 2007

North Texas leishmaniasis outbreak

A team of dermatologists and dermatopathologists at UT Southwestern Medical Center has identified nine North Texas cases of an infectious skin disease common in South America, Mexico and in the Middle East, where it is sometimes referred to as a “Baghdad boil.”

17 Sep 2007