Immune System News and Research

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Scientists observe maturation of immune cells in live zebrafish embryos

T-cells are the immune system's security force. They seek out pathogens and rogue cells in the body and put them out of action. Their precursors are formed in the bone marrow and migrate from there into the thymus. Here, they mature and differentiate to perform a variety of tasks. Scientists at the Max Planck Institute of Immunobiology and Epigenetics in Freiburg have now succeeded for the first time in observing the maturation of immune cells in live zebrafish embryos.

17 Feb 2012

Study reveals new guiding principles for cancer genomics

That our chromosomes can break and reshuffle pieces of themselves is nothing new; scientists have recognized this for decades, especially in cancer cells. The rules for where chromosomes are likely to break and how the broken pieces come together are only just now starting to come into view.

17 Feb 2012

University of Georgia researcher to develop first Chagas vaccine for pets

Chagas disease is the single most common cause of congestive heart failure and sudden death in the world. The devastating parasitic infection affects millions of people throughout Central and South America. But as global travel increases, it's becoming a greater threat in the United States and Europe as well.

17 Feb 2012

Four new drugs can extend survival and prognosis of prostate cancer

After a decade and a half of near stagnation, four new drugs could help make advanced prostate cancer a chronic illness instead of a terminal disease, a leading Colorado prostate cancer expert says.

17 Feb 2012

Researchers sequence genome of Tasmanian devil contagious cancer

Researchers have sequenced the genome of a contagious cancer that is threatening the Tasmanian devil, the world's largest carnivorous marsupial, with extinction. Cataloguing the mutations present in the cancer has led to clues about where the cancer came from and how it became contagious.

17 Feb 2012

IKK2 enzyme plays a key role in proliferation of lung cancer cells

Drugs targeting an enzyme involved in inflammation might offer a new avenue for treating certain lung cancers, according to a new study by scientists at the Salk Institute for Biological Studies.

17 Feb 2012

First accurate predictive model to differentiate between dengue fever and dengue hemorrhagic fever

Researchers at the University of Texas Medical Branch have developed the first accurate predictive model to differentiate between dengue fever (DF) and its more severe form, dengue hemorrhagic fever (DHF).

17 Feb 2012

New way to improve vaccines against cancer and infectious diseases

Research groups from Charité Universitätsmedizin Berlin and the University of Geneva have discovered a new way of improving vaccines against infectious diseases and for use in cancer therapies. Scientists have shown a basic new mechanism that stimulates the body's own alarm signals in case of viral infection to animate the immune system to maximum performance.

17 Feb 2012

Scientists track initial steps of type 1 diabetes mellitus

Scientists have taken a remarkably detailed look at the initial steps that occur in the body when type 1 diabetes mellitus first develops in a child or young adult.

17 Feb 2012

New details about how cell signalling is controlled in immune system

Walter and Eliza Hall Institute scientists have revealed new details about how cell signalling is controlled in the immune system, identifying in the process potential new therapeutic targets for treating severe blood disorders.

17 Feb 2012

Biochemists determine first crystal structure of an immunoproteasome

Like a shredder, the immunoproteasome cuts down proteins into peptides that are subsequently presented on the cellular surface. The immune system can distinguish between self and nonself peptides and selectively kills cells that due to a viral infection present non-self peptides at their surface. In autoimmune diseases this mechanism is deregulated and the immune system also eliminates uninfected cells by mistake.

16 Feb 2012

BioCryst fourth quarter revenues decrease to $5.2 million

BioCryst Pharmaceuticals, Inc. announced financial results for the fourth quarter and full year ended December 31, 2011.

16 Feb 2012

More than half of women with SLE and RA have fewer children than desired

New research shows that more than half of women with rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE) have fewer children than desired. While patient choice has some influence on the smaller family size, findings published today in Arthritis Care & Research, a journal of the American College of Rheumatology (ACR), suggest that higher rates of infertility and miscarriage may also impact the number of offspring born to women with these chronic conditions.

16 Feb 2012

Impact of child malnourishment similar to that of AIDS

"Globally, malnutrition is the most important cause of illness and death," Jeremy Laurance, health editor at the Independent, writes in this editorial. Laurance details the physical effects of malnutrition on a child and notes, "Malnutrition contributes to more than half of child deaths worldwide. ... It affects virtually every organ system," and "its impact on the immune system is similar to that of AIDS."

16 Feb 2012

Combination of therapeutic cancer vaccines and chemotherapy shows promise

Therapeutic cancer vaccines, which stimulate the body's immune system to target and destroy cancer cells, are being used in combination with conventional chemotherapy with growing success, as described in several illuminating articles in Cancer Biotherapy and Radiopharmaceuticals, a peer-reviewed journal from Mary Ann Liebert, Inc.

16 Feb 2012

Smoking kills healthy bacteria and leads to infection

According to a new study, smoking causes the body to turn against its own helpful bacteria, leaving smokers more vulnerable to disease.

16 Feb 2012

Cancer cell communication signals may contain pieces of RNA

Researchers have shown that the communication signals sent around the body by cancer cells, which are essential for the cancer to grow, may contain pieces of RNA - these substances, like DNA, are pieces of genetic code that can instruct cells, and ultimately the body, how to form. The same study also found early indications that these genetic instructions can be intercepted and modified by chemotherapy to help prevent cancer cells growing.

16 Feb 2012

Baby Jaya receives a pacemaker 15 mins after birth

Little Jaya lived up to her name which in Hindi means victorious. Jaya Maharaj became one of the smallest recipients of a pacemaker when she was just 15 minutes old.

15 Feb 2012

DC-SIGN molecule appears to play a role in fighting allergy

Scientists at The University of Nottingham have discovered a new molecule that could offer the hope of new treatments for people allergic to the house dust mite.

15 Feb 2012

Tissues in SIV-infected monkeys can ramp up production of Tregs

Tissue in monkeys infected with a close relative of HIV can ramp up production of a type of T cell that actually weakens the body's attack against the invading virus. The discovery, in lymph nodes draining the intestinal tract, could help explain how the HIV virus evades the body's immune defenses.

15 Feb 2012