Immune System News and Research

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LJI study could provide important target for autoimmune disease interventions

Follicular helper T cells (Tfh cells), a rare type of T cells, are indispensable for the maturation of antibody-producing B cells. They promote the proliferation of B cells that produce highly selective antibodies against invading pathogens while weeding out those that generate potentially harmful ones.

3 May 2016

Addition of L19-IL2 can increase radiation therapy-induced immune response against tumours

Radiation therapy not only kills cancer cells, but also helps to activate the immune system against their future proliferation. However, this immune response is often not strong enough to be able to cure tumours, and even when it is, its effect is limited to the area that has been irradiated.

2 May 2016

Early exposure to pathogens may play pivotal role in immune system development

Exposure to pathogens early in life is beneficial to the education and development of the human immune system.

30 Apr 2016

Small doses of cancer drug may be potential treatment for sepsis and other pandemics

Results from laboratory experiments and mouse studies suggest that small doses of drugs from a specific class of approved cancer medications called topoisomerase 1 (top1) inhibitors may protect against the overwhelming immune response to infection that sometimes leads to sepsis, a bacterial condition that kills as many as 500,000 people in the United States each year.

30 Apr 2016

Exposure to fine particulate matter in air can increase risk of cancer-specific mortality

In 2015, the International Agency for Research on Cancer (IARC) published a series of monographs on the evaluation of various carcinogenic risks. In a monograph on air pollution, the organization pointed out the difficulty of assessing the effects of pollution on multiple types of cancers, given their different etiologies, risk factors and variability in the composition of air pollutants in space and time. However, the IARC identified certain key components of air pollution, including particulates.

30 Apr 2016

New therapeutic target to treat bacterial infections may substitute antibiotics

Infections continue to threaten human health. With remarkable genetic flexibility, pathogenic organisms outsmart available therapies. Fortunately, microbial versatility is matched by the host immune system, which evolves in dialogue with the microbes. Therapies that enhance the beneficial effects of the immune response represent a promising, but under-explored, therapeutic alternative to antibiotics.

29 Apr 2016

TJP1 protein could help determine multiple myeloma patients who may best benefit from proteasome inhibitors

A gene known as TJP1 (tight junction protein 1) could help determine which multiple myeloma patients would best benefit from proteasome inhibitors such as bortezomib, as well as combination approaches to enhance proteasome inhibitor sensitivity, according to a study led by The University of Texas MD Anderson Cancer Center.

29 Apr 2016

New research reveals sliding ability of cancer cells that helps in tumor spread

Metastasis. The very word evokes fear. Defined as the spread of cancer cells from one part of the body to another, metastasis is the cause of approximately 90 percent of deaths among cancer patients. How does metastasis come about? And can we stop it? New research from a team led by Northeastern's Anand Asthagiri, associate professor of bioengineering and chemical engineering, helps to answer those questions. It provides an astonishing look at the biophysical properties that permit breast cancer cells to "slide" by obstales and travel out of their primary tumor toward a blood vessel that will carry them to a new site.

29 Apr 2016

Gut bacteria linked to risk of bloodstream infections after chemotherapy

A new study led by researchers at the University of Minnesota and Nantes University Hospital in France shows that the bacteria in people's gut may predict their risk of life-threatening blood infections following high-dose chemotherapy.

29 Apr 2016

Outbreak of tropical parasitic infection observed for first time in the Arctic

An outbreak of an intestinal parasite common in the tropics, known as Cryptosporidium, has been identified for the first time in the Arctic. The discovery was made in Nunavik, Quebec, by a team from the Research Institute of the McGill University Health Centre, in collaboration with the Nunavik Department of Public Health, Institut National de Santé Publique du Québec and Health Canada. The discovery, which was documented in the journal PLoS Neglected Tropical Diseases, could have long-term implications for the health of children in Nunavik and Nunavut's communities.

29 Apr 2016

Experimental therapy has over 90% remission rate for advanced leukemia patients

Twenty-seven of 29 patients with an advanced type of leukemia that had proved resistant to multiple other forms of therapy went into remission after their T cells (disease-fighting immune cells) were genetically engineered to fight their cancers.

28 Apr 2016

Bacterial invasion of lungs can lead to inflammation in COPD

Chronic obstructive pulmonary disease (COPD) is a common smoking-related lung illness and the third leading cause of death in the United States. Scientists have long believed that inhaling toxic gases and particles from tobacco smoke causes inflammation of the small airways in the lungs, leading to the development of COPD. However, the theory doesn't explain why airway inflammation and disease progression continue even after the patient stops smoking.

28 Apr 2016

Probiotic supplements may help treat post-menopausal osteoporosis

Probiotic supplements protected female mice from the loss of bone density that occurs after having their ovaries removed, researchers at Emory University School of Medicine and Georgia State University have shown.

28 Apr 2016

ZOTEN nanoparticles can help develop natural immunity against genital herpes

An effective vaccine against the virus that causes genital herpes has evaded researchers for decades. But now, researchers from the University of Illinois at Chicago working with scientists from Germany have shown that zinc-oxide nanoparticles shaped like jacks can prevent the virus from entering cells, and help natural immunity to develop.

28 Apr 2016

More neurological resources needed to manage Zika virus infections

WFN Zika-Info-Service: World Federation of Neurology establishes Work Group on Zika virus to support international efforts - Lack of neurological resources in countries most concerned by the virus.

28 Apr 2016

Scientists show how HIV enters female reproductive tract

Finding the vulnerable points where HIV enters the female reproductive tract is like searching for needles in a haystack. But Northwestern Medicine scientists have solved that challenge by creating a glowing map of the very first cells to be infected with a HIV-like virus.

28 Apr 2016

Exposure to titanium dioxide nanoparticles increases bacterial infection of HeLa cells

When human cells are exposed to titanium dioxide without the presence of UV light from the sun, the risk for bacterial infection more than doubles. This finding by a Stony Brook University-led research team, published early online in the Journal of Nanobiotechnology, raises concerns about exposure to titanium dioxide, a nanoparticle commonly used in millions of products worldwide ranging from cosmetics to toothpaste, gum, food coloring, and medicines.

27 Apr 2016

Acid suppression drugs frequently prescribed for high-risk newborns, study shows

Since 2006, several published studies have associated the use of some acid suppression medications in hospitalized high-risk babies with infections, necrotizing enterocolitis and increased risk of death. Those medications - histamine-2 receptor antagonists, such as ranitidine (Zantac and others), and proton pump inhibitors, such as esomeprazole (Nexium and others) - were originally approved by the U.S. Food and Drug Administration for use in adults and older children.

27 Apr 2016

Rapamycin drug could target neural damage linked to Leigh syndrome

Salk Institute scientists showed how an FDA-approved drug boosts the health of brain cells by limiting their energy use. Like removing unnecessary lighting from a financially strapped household to save on electricity bills, the drug--called rapamycin--prolongs the survival of diseased neurons by forcing them to reduce protein production to conserve cellular energy.

27 Apr 2016

ATR-FTIR spectroscopy could be effective for detecting ulcerative colitis

A minimally invasive screening for ulcerative colitis, a debilitating gastrointestinal tract disorder, using emerging infrared technology could be a rapid and cost-effective method for detecting disease that eliminates the need for biopsies and intrusive testing of the human body, according to researchers at Georgia State University.

27 Apr 2016