Chaperones News and Research

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Small molecule in pregnant women's urine apparently blocks cancer growth

University of Montreal scientists have identified a small molecule found in pregnant women's urine that apparently blocks the growth of several types of cancers, including AIDS-related Kaposi's sarcoma, which currently has no cure.

24 Jun 2014

Max Planck researchers elucidate important mechanism of protein folding

Proteins are the workhorses of the cell and thus responsible for almost all biological functions including metabolism, signal transmission or the determination of the cell's shape. However, before they can fulfill their various tasks, the chain-like molecules must first adopt an intricate three-dimensional conformation.

13 May 2014

Researchers devise new approach to treatment of Alzheimer's disease

A team of researchers from Columbia University Medical Center, Weill Cornell Medical College, and Brandeis University has devised a wholly new approach to the treatment of Alzheimer's disease involving the so-called retromer protein complex. Retromer plays a vital role in neurons, steering amyloid precursor protein (APP) away from a region of the cell where APP is cleaved, creating the potentially toxic byproduct amyloid-beta, which is thought to contribute to the development of Alzheimer's.

21 Apr 2014

Research to understand exactly how bleach kills bacteria

Spring cleaning often involves chlorine bleach, which has been used as a disinfectant for hundreds of years. But our bodies have been using bleach's active component, hypochlorous acid, to help clean house for millennia. As part of our natural response to infection, certain types of immune cells produce hypochlorous acid to help kill invading microbes, including bacteria.

8 Apr 2014

New probes help to quantify normally folded and misfolded conformations of protein in cells

Scientists at The Scripps Research Institute (TSRI) have invented small-molecule folding probes that enable them to quantify functional, normally folded and disease-associated misfolded conformations (shapes) of a protein-of-interest in cells under different conditions.

5 Mar 2014

Protein study opens new avenue for cancer researchers

One of the hopes for victory against cancer hinges on naturally-occurring proteins whose job is to make their host cell die. Since their natural role is to stop unhealthy cell proliferation, the idea is that one or more of these proteins could be harnessed to stop the growth of tumors.

3 Feb 2014

TSRI scientists discover natural mechanism that cells use to protect mitochondria

Scientists at The Scripps Research Institute have discovered a natural mechanism that cells use to protect mitochondria, the tiny but essential "power plants" that provide chemical energy for cells throughout the body. Damage to mitochondria is thought to be a significant factor in common neurodegenerative disorders, cancer and even the aging process. The TSRI researchers' discovery could lead to new methods for protecting mitochondria from such damage, thereby improving human health.

4 Dec 2013

Shortage of zinc may contribute to diseases like Alzheimer's and Parkinson's

Scientists at the University of Wisconsin-Madison have made a discovery that, if replicated in humans, suggests a shortage of zinc may contribute to diseases like Alzheimer's and Parkinson's, which have been linked to defective proteins clumping together in the brain.

1 Oct 2013

Molecular protein folding process may help medical researchers understand and treat diseases

Scientists using sophisticated imaging techniques have observed a molecular protein folding process that may help medical researchers understand and treat diseases such as Alzheimer's, Lou Gehrig's and cancer.

30 Jun 2013

RPCI scientists assess safety and efficacy of immunotherapy approach to treat advanced melanoma

A new clinical research study at Roswell Park Cancer Institute (RPCI) will assess the safety and efficacy of a novel immunotherapy approach to treating advanced melanoma. Developed at RPCI by Roswell Park researchers, the investigational vaccine shows promise for treating tumors in patients with stage III/stage IV melanoma, and perhaps as a future therapy for other solid-tumor cancers as well.

30 Jun 2013

Mannitol could lead to new approach for Parkinson's disease treatment, researchers suggest

Researchers from Tel Aviv University describe experiments that could lead to a new approach for treating Parkinson's disease using a common sweetener, mannitol.

8 Apr 2013

Gedunin could help kill cancer cells

Scientists at the Georgia Regents University Cancer Center have identified an Indian plant, used for centuries to treat inflammation, fever and malaria, that could help kill cancer cells.

15 Feb 2013

Accumulation of passenger mutations can slow or even halt tumor growth

A typical cancer cell has thousands of mutations scattered throughout its genome and hundreds of mutated genes. However, only a handful of those genes, known as drivers, are responsible for cancerous traits such as uncontrolled growth. Cancer biologists have largely ignored the other mutations, believing they had little or no impact on cancer progression.

5 Feb 2013

Heidelberg researchers uncover function of specific molecular chaperones

Clumped proteins can be dissolved with the aid of cellular repair systems - a process of critical importance for cell survival especially under conditions of stress. Heidelberg researchers have now decrypted the fundamental mechanism for dissolving protein aggregates that involves specific molecular chaperones.

22 Nov 2012

UPR pathway helps tumor cells escape apoptosis during development of lymphoma

A pathway called the "Unfolded Protein Response," or UPR, a cell's way of responding to unfolded and misfolded proteins, helps tumor cells escape programmed cell death during the development of lymphoma.

21 Nov 2012

Tug of war between Hsp70 and 90 determines how much the body makes of superoxide

Two proteins are in a tug of war that determines how much the body makes of superoxide, a highly reactive and potentially destructive product of oxygen that's dramatically elevated in cardiovascular disease, researchers report.

16 Nov 2012

Researchers identify two new small 'chaperone' molecules that may treat Schindler/Kanzaki disease

University of Massachusetts Amherst researchers, experts in revealing molecular structure by X-ray crystallography, have identified two new small "chaperone" molecules that may be useful in treating the inherited metabolic disorder known as Schindler/Kanzaki disease.

10 Oct 2012

HSF1 increases expression of chaperones and supports cancer metastasis

Whitehead Institute researchers have found that increased expression of a specific set of genes is strongly associated with metastasis and death in patients with breast, colon, and lung cancers.

3 Aug 2012

AHAF announces glaucoma and macular degeneration research grants

The American Health Assistance Foundation, a nonprofit organization with a history of funding breakthrough research on age-related vision diseases, announced today that it has awarded 21 new grants totaling $2.1 million to scientists worldwide who are studying glaucoma and macular degeneration. The two conditions are the leading causes of irreversible blindness in the world.

26 Jul 2012

Biochemists map structure of key protein-RNA complex required for assembly of telomerase

UCLA biochemists have mapped the structure of a key protein-RNA complex that is required for the assembly of telomerase, an enzyme important in both cancer and aging.

20 Jun 2012