Perforin News and Research

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New textbook on mysterious and deadly cytokine storm syndrome

There's no telling where the call will come from, or when. But Randy Cron, M.D., Ph.D., professor of pediatrics and medicine at UAB, knows to expect them.

11 Nov 2019

Powerful immune molecule silences barrel to protect transplanted organs from rejection

A powerful immune molecule helps protect transplanted organs from rejection by putting a silencer on two other immune molecules that converge to take a direct shot at the organ, scientists report.

5 Feb 2019

Viral hepatitis: Liver failure caused by defects in the vascular system

In severe cases, a viral hepatitis infection can result in liver failure. A team from the Technical University of Munich has now discovered how this occurs: by immune cells attacking cells in the vascular system, which disrupts the organ's blood and nutrient supply.

19 Dec 2018

Small populations of normal T cells could modify disease severity in patients with XLP1

Human SH2D1A mutations resulting in X-linked lymphoproliferative syndrome type 1 are associated with a unique susceptibility to the Epstein-Barr virus, which may lead to fatal infectious mononucleosis.

9 Nov 2018

New study sheds light on how CAR T cell therapy works

Cancer remains the second-leading cause of death in the United States. This year, an estimated 1.7 million new cases will be diagnosed, with nearly 610,000 people expected to die from the disease, according to the National Cancer Institute.

8 Nov 2018

Immune killer cells use microptosis pathway to kill intracellular parasites

The immune system's killer cells deliver a tightly controlled, 3-phase knockout punch that kills intracellular parasites through a novel pathway that an international team led by researchers from the Program in Cellular and Molecular Medicine (PCMM) at Boston Children's Hospital have named "microptosis."

20 Jan 2016

Small subtype of immune cells appears to prevent obesity

We tend to think of the immune system as guarding us against bacteria, viruses and assorted foreign invaders, but this system has some other surprising roles. Weizmann Institute researchers have now identified a small subtype of immune cells that appears to prevent metabolic syndrome: obesity, high blood pressure, and high levels of blood sugar and cholesterol.

3 Nov 2015

Scientists unravel the major cause of protein citrullination in rheumatoid arthritis

Experiments by scientists at Johns Hopkins and in Boston have unraveled two biological mechanisms as the major cause of protein citrullination in rheumatoid arthritis. Protein citrullination is suspected of sparking the immune system and driving the cascade of events leading to the disease.

31 Oct 2013

Researchers investigate importance of STAT1 phosphorylation in NK cells

Since its discovery in the early 1990s, the protein STAT1 (Signal Transducer and Activator of Transcription 1) has been found to be central in passing signals across immune cells, ensuring that our bodies react quickly and appropriately to threats from viruses or other pathogens.

7 Sep 2013

Therapeutic HPV16 and HPV18 vaccine ‘may eliminate infection’

A candidate vaccine against human papillomavirus serotypes 16 and 18 appears to induce robust immune responses to antigens, potentially leading to the elimination of virus-infected cells and regression of dysplasia, say US investigators.

15 Oct 2012

Australia's top medical researchers for 2012 announced

Finalists for one of Australia’s longest running and most prestigious awards for medical research were announced today. This year’s winner will join a list of alumni winners that includes many of the country’s most respected scientists.

31 Jul 2012

Researchers unearth secret of immune system's success

After eight years of work, researchers have unearthed what has been a well-kept secret of our immune system's success. The findings published online on June 9th in Immunity, a Cell Press publication, offer an explanation for how specialized immune cells are able to kill infected or cancerous cells without killing themselves in the process.

From Evident Corporation - Life Sciences 10 Jun 2011

Mechanism of rogue cell killer discovered

A team of Melbourne and London researchers have shown how a protein called perforin punches holes in, and kills, rogue cells in our bodies. Their discovery of the mechanism of this assassin is published today in the science journal Nature.

1 Nov 2010

Scientists use electron microscopes to study mechanism of perforin protein to punch holes in rogue cells

Scientists from the UK and Australia have seen the human immune system's assassin a protein called perforin in action for the first time. The UK team, funded by the Biotechnology and Biological Sciences Research Council (BBSRC) and the Wellcome Trust, is based at Birkbeck College where they used powerful electron microscopes to study the mechanism that perforin uses to punch holes in rogue cells.

1 Nov 2010

Proteins to punch holes in cancer cells to kill them: Study

In a medical breakthrough scientists have found a protein called perforin that kills rogue cells in the human body especially the ones causing cancer. The team comprising of experts from Melbourne and London found that perforin punches holes and kills these cells. The research appeared in the acclaimed journal Nature.

31 Oct 2010

Well-armed immune cells help long-term non-progressors contain HIV

To help develop an effective HIV vaccine, researchers are trying to better understand how the immune systems of a small minority of HIV-infected people known as long-term non-progressors (LTNPs) contain the virus naturally.

5 Dec 2008

Bacterial toxins and perforins have a common ancestor

Human immune proteins crucial for fighting cancer, viruses and bacterial infections belong to an ancient and lethal toxin family previously only found in bacteria, Australian researchers have found.

24 Aug 2007

Latest findings on HIV pathogenesis at AIDS Conference in Bangkok

At the XVth International AIDS Conference in Bangkok, Thailand, Anthony S. Fauci, M.D., director of the National Institute of Allergy and Infectious Diseases and chief of the NIAID Laboratory of Immunoregulation (LIR), will present his laboratory’s latest findings on how aberrant immune activation underlies HIV pathogenesis.

15 Jul 2004

New insights into how tumors neutralize CD8 T cells

Scientists have speculated that this may be because the immune response is not strong enough, or because it does not last long enough to have an effect. Hence the increasing efforts to develop cancer vaccines that induce, strengthen, and increase the duration of immunological attack against cancer cells.

16 Apr 2004