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Researchers report novel charge zipper principle used by proteins to form functional units

Membrane proteins are the "molecular machines" in biological cell envelopes. They control diverse processes, such as the transport of molecules across the lipid membrane, signal transduction, and photosynthesis. Their shape, i.e. folding of the molecules, plays a decisive role in the formation of, e.g., pores in the cell membrane.

19 Jan 2013

Study identifies 24 new copy number variants linked with autism

University of Utah (the U) researchers, in collaboration with several groups from around the country, published a paper on Monday, Jan. 14, 2013, following one of the biggest studies of its kind, that extends our understanding of genes related to autism spectrum diseases (ASDs) and advances methods for early detection and treatment.

16 Jan 2013

Researchers develop unique approach to calpain inhibition

Calpain, a calcium-regulated enzyme, is essential to a host of cellular processes, but can cause severe problems in its overactivated state. It has been implicated as a factor in muscular dystrophy, AIDS, Alzheimer's disease, multiple sclerosis, and cancer. As such, finding and exploiting calpain inhibitors is an important area of research.

28 Dec 2012

New study could help develop anti-inflammatory drugs with fewer side effects

10 Dec 2012

Targeting RAD52 protein can block the process by which leukemia stem cells repair themselves

Despite treatment with imatinib, a successful drug that targets chronic myeloid leukemia (CML), a deadly type of cancer, some patients may continue to be at risk for relapse because a tiny pool of stem cells is resistant to treatment and may even accumulate additional genetic aberrations, eventually leading to disease progression and relapse. These leukemia stem cells are full of genetic errors, loaded with potentially lethal breaks in DNA, and are in a state of constant self-repair.

10 Dec 2012

Positive results from BioCardia's Helical Infusion System Phase 1/2 trial on ischemic cardiomyopathy

BioCardia, Inc., focused on regenerative biologic therapies for cardiovascular disease, today announced positive results from a Phase 1/2 heart failure trial using the Company's Helical Infusion System, comprising the Helical Infusion System Catheter and Morph Vascular Access Catheter, to deliver allogeneic, or "off-the-shelf," and autologous, or from the treated patient, mesenchymal (adult) stem cells (MSCs) via transendocardial injection.

7 Nov 2012

New insight on ability of certain PAH-derived lesions to evade DNA repair machinery

A person doesn't have to go far to find a polycyclic aromatic hydrocarbon (PAH). These carcinogen precursors are inhaled through automobiles exhaust during the morning commute, are present in a drag of cigarette smoke, and are part of any barbequed meal.

4 Nov 2012

Technology creates 3-D map of stresses linked to malformed structures

Researchers at Case Western Reserve University have found a way to create three-dimensional maps of the stress that circulating blood places on the developing heart in an animal model - a key to understanding triggers of heart defects.

31 Oct 2012

New mechanism may alter principle understandings of molecular interactions within a cell's nucleus

Scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, with collaborators from Harvard University, the University of Madrid, Princeton University, and the University of Zurich, have discovered a new mechanism that may alter principle understandings of molecular interactions within a cell's nucleus.

11 Oct 2012

Researchers discover smallest and fastest-known RNA switches

A University of Michigan biophysical chemist and his colleagues have discovered the smallest and fastest-known molecular switches made of RNA, the chemical cousin of DNA. The researchers say these rare, fleeting structures are prime targets for the development of new antiviral and antibiotic drugs.

8 Oct 2012

New computer program predicts most stable structures of nanometer-sized collagen

The human body is proficient at making collagen. And human laboratories are getting better at it all the time. In a development that could lead to better drug design and new treatments for disease, Rice University researchers have made a major step toward synthesizing custom collagen. Rice scientists who have learned how to make collagen - the fibrous protein that binds cells together into organs and tissues - are now digging into its molecular structure to see how it forms and interacts with biological systems.

26 Sep 2012

Researchers identify 21 proteins that specifically bind to ataxin-1

Misfolded proteins can cause various neurodegenerative diseases such as spinocerebellar ataxias (SCAs) or Huntington's disease, which are characterized by a progressive loss of neurons in the brain. Researchers of the Max Delbr-ck Center for Molecular Medicine (MDC) Berlin-Buch, Germany, together with their colleagues of the Universit- Paris Diderot, Paris, France, have now identified 21 proteins that specifically bind to a protein called ataxin-1.

19 Sep 2012

Scientists describe how DNA origami can enhance effect of cytostatics in cancer treatment

Scientists at Karolinska Institutet in Sweden describe in a new study how so-called DNA origami can enhance the effect of certain cytostatics used in the treatment of cancer. With the aid of modern nanotechnology, scientists can target drugs direct to the tumour while leaving surrounding healthy tissue untouched.

14 Sep 2012

ACS National Meeting & Exposition focuses on DNA wires and their potential use in identifying diseases

In a discovery that defies the popular meaning of the word "wire," scientists have found that Mother Nature uses DNA as a wire to detect the constantly occurring genetic damage and mistakes that ― if left unrepaired ― can result in diseases like cancer and underpin the physical and mental decline of aging.

20 Aug 2012

Protein folding: Nobel laureate Ahmed H. Zewail summarizes his insights

Living subjects are very complex systems and, at the same time, stunningly robust and accommodative. The secret of success are their proteins which build up the cells of the organisms, act as cleaners, messengers, transporter, motors, and fulfill much more jobs. How proteins are genetically coded and how their linear chains of amino acids are put together, is in principle well known.

14 Aug 2012

Helix BioMedix second quarter revenue decreases 32% to $471,000

Helix BioMedix, Inc., a developer of bioactive peptides, today announced financial results for the second quarter ended June 30, 2012.

3 Aug 2012

Orc1 mutations may explain pathology in manifestations of Meier-Gorlin syndrome

Research published Aug. 1 by scientists at Cold Spring Harbor Laboratory (CSHL) links gene mutations found in some patients with Meier-Gorlin syndrome (MGS) with specific cellular dysfunctions that are thought to give rise to a particularly extreme version of dwarfism, small brain size, and other manifestations of abnormal growth which generally characterize that rare condition.

1 Aug 2012

ADCT, CRT sign agreements to develop ADCs against cancer

Cancer Research Technology (CRT), the commercial arm of Cancer Research UK, and Switzerland-based ADC Therapeutics Sarl (ADCT) announce today that they have signed agreements to develop cancer treatments called Antibody Drug Conjugates (ADCs) using CRT antibodies and peptides, and ADCT's 'warhead' and linker chemistries.

6 Jul 2012

Gold nanoparticles with slight positive charge work collectively to unravel DNA's double helix

New research from North Carolina State University finds that gold nanoparticles with a slight positive charge work collectively to unravel DNA's double helix. This finding has ramifications for gene therapy research and the emerging field of DNA-based electronics.

21 Jun 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