Immune System News and Research

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Rate of stem cell transplants among African-Americans lower

Lower transplant rates in ethnic communities may be explained somewhat by a lack of suitable anonymous donors, a problem the medical community has long known and been working to address. Surprisingly, the study found the discrepancy in treatment held true even when the transplant was autologous (e.g. self-donated stem cells were used) or when the cells were donated by a relative, typically a sibling.

11 Feb 2007

South Africa starts major HIV/AIDS vaccine trial

The launch of the first large-scale study to evaluate a candidate HIV vaccine on the African continent was announced today by study collaborators in the United States and South Africa. The trial will involve up to 3,000 participants at five sites throughout South Africa and is expected to continue for four years.

11 Feb 2007

Scientists find connection between nerve cells and immune system

A direct connection exists between the brain and the immune system – at least in mice. Scientists at the Helmholtz Centre for Infection Research in Braunschweig conducted a comprehensive study of mice intestine and the surrounding blood and lymph vessels using special microscopy and marking techniques.

11 Feb 2007

Fighting influenza with 40,000 blood samples

Four million people die every year from respiratory diseases such as viral influenza. For elderly people in particular, an infection can be dangerous. What is more, the flu vaccine is not as effective with this risk group as it is with younger people.

7 Feb 2007

Research helps explain origin of self-reactive B cells

Doctors have long wondered why, in some people, the immune system turns against parts of the body it is designed to protect, leading to autoimmune disease.

7 Feb 2007

Horse genome sequence assembled

The first draft of the horse genome sequence has been deposited in public databases and is freely available for use by biomedical and veterinary researchers around the globe, leaders of the international Horse Genome Sequencing Project announced today.

7 Feb 2007

Three-dimensional fabric "scaffold" to repair cartilage damage

Using a unique weaving machine of their design, Duke University Medical Center researchers have created a three-dimensional fabric "scaffold" that could greatly improve the ability of physicians to repair damaged joints with the patient's own stem cells.

7 Feb 2007

Scientists discover how T-cell leukemia viruses evade defense mechanisms

National Cancer Institute (NCI) scientists have discovered how human T-cell leukemia virus type 1 (HTLV-1), which infects about 20 million people worldwide, evades being held in check by one of the body's natural defense mechanisms.

6 Feb 2007

Spring births increase likelihood of preterm birth

Women who become pregnant in spring are more vulnerable to preterm birth than those who conceive in other seasons, according to researchers at the University of Pittsburgh.

5 Feb 2007

New understanding of blood pressure gene could lead to new treatments

Research by scientists at UCL (University College London) has clearly demonstrated for the first time the structure and function of a gene crucial to the regulation of blood pressure. The discovery could be important in the search for new treatments for illnesses such as heart disease, the UK's biggest killer.

5 Feb 2007

Researchers identify human pancreatic cancer stem cells

Researchers at the University of Michigan Medical Center have, for the first time, identified human pancreatic cancer stem cells. Their work indicates that these cells are likely responsible for the aggressive tumor growth, progression, and metastasis that define this deadly cancer.

1 Feb 2007

Peptide vaccine fights off breast tumors with help of bacteria-mimicking agents

With the help of immune system-stimulating molecules that mimic bacterial components, researchers have used a type of cancer vaccine to both delay and prevent breast tumors in mice.

1 Feb 2007

Novel approach to synthesizing nanowires

A novel approach to synthesizing nanowires (NWs) allows their direct integration with microelectronic systems for the first time, as well as their ability to act as highly sensitive biomolecule detectors that could revolutionize biological diagnostic applications, according to a report in Nature.

31 Jan 2007

Different treatments may be needed for chronic asthma, depending on whether it results from allergies or lung infections

Researchers have now identified a particular gene that influences how severe a M. pneumoniae infection may be, which in turn suggests that a different strategy might be needed for treating asthma resulting from this and similar lung infections rather than allergies.

31 Jan 2007

Investigational treatment for cervical dysplasia

Temple University Hospital's Center For Women's Health is participating in a national study to determine the safety and effectiveness of an investigational treatment for cervical dysplasia.

30 Jan 2007

GlaxoSmithKline's new influenza vaccine accepted for review in Europe

GlaxoSmithKline has announced that its new generation H5N1 split antigen pre-pandemic influenza vaccine has been accepted for review by the Committee for Medicinal Products for Human Use (CHMP) in Europe.

29 Jan 2007

Polymer nanoparticles for immunotherapy from encapsulated tumor-associated antigens and whole tumor cells

Using a biodegradable nanoparticle as a means of delivering tumor cell debris and proteins to the immune system, investigators at Yale University have developed a promising new method for creating therapeutic anticancer vaccines.

29 Jan 2007

Cellular mechanism linked to inflammation and cancer

A team led by biochemists at the University of California, San Diego has found what could be a long-elusive mechanism through which inflammation can promote cancer. The findings may provide a new approach for developing cancer therapies.

28 Jan 2007

Manipulation of proliferation and differentiation of human bone marrow derived neural stem cells in vitro and in vivo

Stem cells taken from adult human bone marrow have been manipulated by scientists at the Maxine Dunitz Neurosurgical Institute at Cedars-Sinai Medical Center to generate aggregates of cells called spheres that are similar to those derived from neural stem cells of the brain.

28 Jan 2007

Possible reason for severe side-effects of Northwick Park clinical trial

A possible reason why the Northwick Park clinical trial of the drug TGN1412 caused multiple organ failure in human volunteers is revealed in research presented at a conference near Paris.

25 Jan 2007