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A macrophage is a type of white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells.

Researchers uncover new mechanism to protect individuals from serious complications of obesity

Although obesity is a risk factor for diabetes and coronary heart disease worldwide, only some obese individuals go on to develop these metabolic complications, while others are relatively protected. Defining these protective factors could help scientists prevent disease in the wider population.

4 Feb 2010

Scientists are getting closer to prove how cholesterol causes heart disease

By considering molecular-level events on a broader scale, researchers now have a clearer, if more complicated, picture of how one class of immune cells goes wrong when loaded with cholesterol. The findings reported in the February 3rd issue of Cell Metabolism, a Cell Press publication, show that, when it comes to the development of atherosclerosis and heart disease, it's not about any one bad actor-it's about a network gone awry.

3 Feb 2010

Studies suggest potential therapeutic targets for food poisoning, TB and autoimmune diseases

Researchers at National Jewish Health have discovered how the virulent food-borne bacteria Listeria monocytogenes induces infected immune cells to sabotage their own defensive response.

2 Feb 2010

Nontoxic drug halts and reverses rheumatoid arthritis

A researcher from Northwestern University Feinberg School of Medicine has invented a novel way to halt and even reverse rheumatoid arthritis. He developed an imitation of a suicide molecule that floats undetected into overactive immune cells responsible for the disease.

29 Jan 2010

Investigators identify new disease mechanism and therapeutic approach for lupus kidney disease

Investigators have identified a new disease mechanism and therapeutic approach for a type of advanced kidney disease that is a common cause of complications in patients with lupus. The

27 Jan 2010

HZI researchers explore novel therapies to keep the immune system young and functional for healthy aging

By comparing the immune responses of both, young and old mice, to bacterial infection they found that the number of macrophages, one of the major cell populations involved in the elimination of infecting bacteria, decreases rapidly in aged mice. This decline in the number of fighters and the associated weakness of the immune defense may be responsible for the age-associated increase in susceptibility to infections.

27 Jan 2010

Alnylam Pharmaceuticals presents data on multiple therapeutic programs at RNAi Symposium

Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, today announced that it presented data from multiple pre-clinical and clinical programs at the “RNA Silencing: Mechanism, Biology, and Application” Keystone Symposium held January 14-19, 2010 in Keystone, Colorado. Alnylam and its collaborators presented data from Alnylam’s therapeutic programs including transthyretin (TTR)-mediated amyloidosis and Huntington’s disease, as well as new data on delivery approaches for the systemic delivery of RNAi therapeutics.

20 Jan 2010

Repeated exposure to tobacco smoke makes lung cancer much worse

Repeated exposure to tobacco smoke makes lung cancer much worse, and one reason is that it steps up inflammation in the lung. Scientists at the University of California, San Diego School of Medicine have found that mice with early lung cancer lesions that were repeatedly exposed to tobacco smoke developed larger tumors - and developed tumors more quickly - than unexposed animals.

19 Jan 2010

Regulus Therapeutics presents new data on oncology, immune disease and HCV therapeutic programs

Regulus Therapeutics Inc. today announced that new pre-clinical data from multiple therapeutic programs were presented at the “RNA Silencing: Mechanism, Biology and Application” Keystone Symposium held January 14 – 19, 2010 in Keystone, Colorado. Regulus and its collaborators presented data showing microRNA target regulation by anti-miRs, as well as data from therapeutic programs focused on oncology, immune disease and hepatitis C virus (HCV) infection.

18 Jan 2010

New findings may yield novel therapies for chronic neurodegenerative diseases

We all have at one time or another experienced the typical signs of an infection: the fever, the listlessness, the lack of appetite. They are orchestrated by the brain in response to circulating cytokines, the signaling molecules of the immune system. But just how cytokines' reach extends beyond the almost impenetrable blood-brain barrier has been the topic of much dispute.

18 Jan 2010

Stem cell therapy holds promise as potential alternative to bone grafting operations

A study published this week reinforces the potential value of stem cells in repairing major injuries involving the loss of bone structure.

12 Jan 2010

New therapeutic treatment may provide a potential alternative to bone grafting operation

A study published this week reinforces the potential value of stem cells in repairing major injuries involving the loss of bone structure.

12 Jan 2010

Phase 2 study evaluating VBL Therapeutics' lead compound VB-201 initiated

VBL Therapeutics today announced the initiation of a Phase 2 efficacy and safety study evaluating lead compound VB-201 for the treatment of patients with psoriasis. VB-201 is poised to be a first-in-class, orally-administered immune response modifier expected to reduce inflammation in a broad range of conditions such as psoriasis.

5 Jan 2010

Androgen receptor plays critical role in wound healing

A molecular receptor pivotal to the action of male hormones such as testosterone also plays a crucial role in the body's ability to heal, report scientists in the December issue of the Journal of Clinical Investigation.

5 Jan 2010

Older adults face higher risk of hospitalization for pneumonia when exposed to pollution

Older adults with long-term exposure to higher levels of pollution are at higher risk for hospitalization for pneumonia, according to researchers in Canada.

23 Dec 2009

BUSM researchers discover new gene therapy for treating emphysema patients

Researchers from Boston University School of Medicine (BUSM) have discovered a new gene therapy that may prevent the progression of emphysema. The study, which appears on-line in the Journal of Clinical Investigation, describes a method to express therapeutic genes in lung tissue for a lifetime after only a single treatment.

22 Dec 2009

Scientists identify new therapeutic approach for overcoming emphysema

Individuals with single-gene mutations that mean they have abnormally low levels of the protein alpha-1 antitrypsin are highly susceptible to emphysema, a progressive lung disease that causes severe shortness of breath.

22 Dec 2009

Genetic variant associated with reduced risk of COPD

What: Researchers have discovered evidence that suggests a genetic variant may be associated with better preserved lung function among children with asthma and adults who smoke, according to a new study funded by the National Heart, Lung, and Blood Institute (NHLBI), which is part of the National Institutes of Health.

18 Dec 2009

Regulus Therapeutics wins exclusive rights to modulate microRNAs

Regulus Therapeutics Inc., founded by Alnylam Pharmaceuticals, Inc. and Isis Pharmaceuticals, Inc., announced today that it has obtained exclusive rights from the California Institute of Technology to inventions made in the laboratory of David Baltimore, Ph.D. covering methods and compositions for modulating microRNA-146 and microRNA-155.