Immune System News and Research

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Study looks at DNA sequences for receptors in T lymphocytes

Our immune system must be tremendously complex to respond to the unending assault of viruses, bacteria and cancerous cells. One of the mechanisms used by the immune system to cope with the huge variety of possible threats is to randomly combine DNA segments for the production of receptors on lymphocytes - a type of white blood cell.

23 Oct 2012

Blood-circulating monocytes can replace brain resident microglia

The immune system is comprised of multiple cell types each capable of specialized functions to protect the body from invading pathogens and promote tissue repair after injury. One cell type, known as monocytes, circulates throughout the organism in the blood and enters tissues to actively phagocytose (eat!) foreign cells and assist in tissue healing.

23 Oct 2012

Researchers discover how HIV-infected people develop very powerful antibody responses

Wits researchers have played a pivotal role in an AIDS study published today in the journal, Nature Medicine, which describes how a unique change in the outer covering of the virus found in two HIV infected South African women enabled them to make potent antibodies which are able to kill up to 88% of HIV types from around the world.

23 Oct 2012

Bodyguard macrophages protect stem cells from over-differentiation

Hiding deep inside the bone marrow are special cells. They wait patiently for the hour of need, at which point these blood forming stem cells can proliferate and differentiate into billions of mature blood immune cells to help the body cope with infection, for example, or extra red blood cells for low oxygen levels at high altitudes. Even in emergencies, however, the body keeps to a long-term plan: It maintains a reserve of undifferentiated stem cells for future needs and crises.

23 Oct 2012

Possible overlap exists between inflammatory bowel disease and IBS

Research unveiled today at the American College of Gastroenterology's (ACG) 77th Annual Scientific meeting in Las Vegas suggests a possible overlap of symptoms of two prevalent GI disorders: irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD) and further suggests a possible link between subtle GI tract inflammation and IBS symptoms-a link that is also the focus of the first systemic review of the literature on this topic and an editorial both published in this month's American Journal of Gastroenterology.

23 Oct 2012

Interim results from CEL-SCI's Multikine Phase III study on head and neck cancer

CEL-SCI Corporation announced today that an interim review of the safety data from its open label, randomized, controlled, pivotal Phase III study of Multikine (Leukocyte Interleukin, Injection) investigational immunotherapy by an Independent Data Monitoring Committee (IDMC) raised no safety concerns.

23 Oct 2012

Sanofi presents overview of Phase II and III trials for quadrivalent influenza vaccine

Sanofi Pasteur, the vaccines division of Sanofi, presented today an overview of Phase II and Phase III clinical trials for its investigational quadrivalent influenza vaccine (QIV).

23 Oct 2012

Researchers continue hunt for AIDS vaccine

"Finding a safe, effective AIDS vaccine has, thus far, proved elusive even after some $8 billion invested from 2001-2011 into vaccine research and development," PlusNews reports in an article examining ongoing HIV vaccine research efforts. "Scientists point to HIV's Houdini-like ability to escape immune system attack, and less-than-strategic use of funds over the past decade, as reasons for the continued hunt," the news service writes.

22 Oct 2012

PLoS ONE publishes review of AntiViral-HyperActivation Limiting Therapeutics clinical trial

ViroStatics, a private Italian/American biopharmaceutical company developing novel therapeutics for viral and other chronic diseases, announced that a review of the first human clinical trial to test a new class of anti-HIV medications known as AntiViral-HyperActivation Limiting Therapeutics (AV-HALTs) has been published in the peer-reviewed journal PLoS ONE.

22 Oct 2012

VEGF produced by NPCs plays a strong role in influencing microglial behavior

The brain's key "breeder" cells, it turns out, do more than that. They secrete substances that boost the numbers and strength of critical brain-based immune cells believed to play a vital role in brain health. This finding adds a new dimension to our understanding of how resident stem cells and stem cell transplants may improve brain function.

22 Oct 2012

Fungal exposure in homes could increase risk of sarcoidosis

People who are exposed to mold in their homes could be at an increased risk for sarcoidosis, a chronic inflammatory lung disease. Researchers from Sweden and Slovenia tested 62 nonsmoking patients with sarcoidosis, 34 of whom had extrapulmonary manifestations (EPM).

22 Oct 2012

Excessive medical ICU noise could lead to worse patient outcomes

New research shows that overnight noise levels in the medical ICU (MICU) often exceed recommended levels, which could potentially lead to worse outcomes.

22 Oct 2012

Microgravity and prolonged space flight could give unique advantages to germs

The cabin of a spacecraft halfway to Mars would be the least convenient place -- one cannot say "on earth" -- for a Salmonella or Pneumococcus outbreak, but a wide-ranging new paper suggests that microgravity and prolonged space flight could give unique advantages to germs.

22 Oct 2012

Exercise is the first step to protect against negative impacts of stress

Any time life hands us a stressful situation, we have a decision to make: will we handle it with grace, or let it pile up on everything else? For women, stress sometimes feels like a never-ending occurrence, and University of Alabama at Birmingham experts say that, left unmanaged, stress can lead to health problems. But it can easily be curtailed.

20 Oct 2012

Clinical trial to study immunosuppressant tacrolimus against generics

A new study at the University of Cincinnati seeks to end the questions over generic-vs.-brand for a common immunosuppressive drug for transplant patients, tacrolimus.

20 Oct 2012

Researchers identify how mosquito's immune system attacks specific infections

Researchers at the Johns Hopkins Bloomberg School of Public Health have determined a new mechanism by which the mosquitoes' immune system can respond with specificity to infections with various pathogens, including the parasite that causes malaria in humans, using one single gene.

20 Oct 2012

R848 chemical can prime the immune system to fight lymphoma

UK scientists hope that lymphoma patients could benefit from a new drug that triggers the cancer-fighting properties of the body's own immune system, after highly promising early laboratory results.

From The University of Manchester 20 Oct 2012

Shingles vaccine reduces risk of herpes zoster disease in older patients

Older adults who get the shingles vaccine have a nearly 50 percent reduced risk of developing the often debilitating disease, finds a new evidence review from The Cochrane Library.

20 Oct 2012

Sortilin receptor plays an important role in function of the immune system

To transport substances from the site of their production to their destination, the body needs a sophisticated transport and sorting system. Various receptors in and on the cells recognize certain molecules, pack them and ensure that they are transported to the right place. One of these receptors is Sortilin.

20 Oct 2012

Daily whole body vibration may combat prediabetes in adolescents

Daily sessions of whole-body vibration may combat prediabetes in adolescents, dramatically reducing inflammation, average blood glucose levels and symptoms such as frequent urination, researchers report.

20 Oct 2012