PKA News and Research

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Study reveals inner workings of PKA switch that regulates cellular functions, contributes to deadly disorders

A University of Utah-led study using X-rays and neutron beams has revealed the inner workings of a master switch that regulates basic cellular functions, but that also, when mutated, contributes to cancer, cardiovascular disease and other deadly disorders.

13 Oct 2014

Researchers reveal new information about Protein Kinase A

Using X-rays and neutron beams, a team of researchers from the University of California, San Diego School of Medicine, University of Utah and Oak Ridge National Laboratory have teased out new information about Protein Kinase A (PKA), a ubiquitous master switch that helps regulate fundamental cellular functions like energy consumption and interactions with hormones, neurotransmitters and drugs.

10 Oct 2014

Researchers discover hotspot L205R mutation is closely associated with adrenocortical tumors

Chinese researchers from Rui-Jin Hospital, Shanghai Jiao-Tong University School of Medicine, BGI, and other institutions have discovered that the activating hotspot L205R mutation in PRKACA gene was closely associated with adrenocortical tumors (ACTs), and the relationship of recurrently mutated DOT1L and CLASP2 with ACTs' other subtypes.

7 Apr 2014

Research reveals that deletion of Epac1 gene protects from fatal rickettsiosis

Researchers at the University of Texas Medical Branch at Galveston have discovered a way to block a disease pathway that could be a breakthrough in defeating some of the world's most devastating human infections.

14 Dec 2013

New understanding of sperm capacitation may improve IVF success rates

Two new papers from reproductive biologists at the University of Massachusetts Amherst, with international partners, report advances in understanding the basic processes of sperm capacitation that may one day improve success rates of in vitro fertilization (IVF) by providing a shortcut to bypass problems, and may eventually lead to a male contraceptive.

29 Oct 2013

Study: Deficiency of protein causes age-related memory loss and Alzheimer's disease

A team of Columbia University Medical Center (CUMC) researchers, led by Nobel laureate Eric R. Kandel, MD, has found that deficiency of a protein called RbAp48 in the hippocampus is a significant contributor to age-related memory loss and that this form of memory loss is reversible.

29 Aug 2013

Targeting glucagon action: A new frontier for regulating diabetes

For the first time, scientists at the Toronto General Research Institute showed that targeting glucagon action in the brain may be a new frontier for regulating diabetes.

20 May 2013

EPAC2 and diabetes: an interview with Dr. Hussain, Johns Hopkins University

EPAC stands for exchange protein activated by cyclic AMP (cAMP). cAMP is an (among many) intracellular messenger molecule. cAMP is generated when certain hormones stimulate a cell by binding to their receptor, which is at the outside surface of the cell.

3 May 2013

Prions may be crucial in brain development during childhood

A molecule that is not only dangerous, but can help the brain grow. A few years ago it was found that certain proteins, the prions, when defective are dangerous, as they are involved in neurodegenerative syndromes such as the Creutzfeldt-Jakob and the Alzheimer diseases.

16 Feb 2013

ADRB receptors play a direct role in Src activation by PKA-mediated mechanism

Scientists at The University of Texas MD Anderson Cancer Center have discovered the signaling pathway whereby a master regulator of cancer cell proteins - known as Src - leads to ovarian cancer progression when exposed to stress hormones. The researchers report in the current issue of Nature Communications that beta blocker drugs mitigate this effect and reduce cancer deaths by an average of 17 percent.

30 Jan 2013

Biguanide mechanism discovered

Researchers have discovered a novel mechanism by which biguanides exert their glucose-lowering effect, potentially leading to new therapeutic approaches to the treatment of diabetes and insulin resistance.

14 Jan 2013

Article reveals biochemical chain of events involved in penile erection

For two decades, scientists have known the biochemical factors that trigger penile erection, but not what's needed to maintain one. Now an article by Johns Hopkins researchers, scheduled to be published this week by the Proceedings of the National Academy of Sciences (PNAS), uncovers the biochemical chain of events involved in that process.

27 Sep 2012

Protein toxic to nerve cells in AD also contributes to memory loss

The underlying causes of Alzheimer's disease are not fully understood, but a good deal of evidence points to the accumulation of β-amyloid, a protein that's toxic to nerve cells. β-amyloid is formed by the activity of several enzymes, including one called BACE1. Most Alzheimer's disease patients have elevated levels of BACE1, which in turn leads to more brain-damaging β-amyloid protein.

20 Aug 2012

New paper documents discovery of novel lipids, including MC3

Alnylam Pharmaceuticals, a leading RNAi therapeutics company, and collaborators announced today the publication of a scientific paper documenting the discovery of novel lipids used in second generation lipid nanoparticles (LNPs) for systemic delivery of RNAi therapeutics.

14 Jul 2012

Protein kinase A activated in the nucleus as well as the cytoplasm

Using a new tool allowing proteins in a living cell to be manipulated in real time, researchers at Johns Hopkins have stumbled across the answer to a longstanding debate about where and how a certain protein is turned on in the cell. Reporting in the February 2012 issue of Nature Chemical Biology, scientists show that protein kinase A is also activated in the nucleus rather than inside the cell’s body, a challenge to traditional beliefs.

27 Jun 2012

Researchers discover LRRK2 gene mutation may cause Parkinson's disease

Researchers at Mount Sinai School of Medicine have discovered a way that mutations in a gene called LRRK2 may cause the most common inherited form of Parkinson's disease.

28 Mar 2011

Study explains how genetic mutations lead to development of Parkinson's disease

Researchers at Mount Sinai School of Medicine have discovered a way that mutations in a gene called LRRK2 may cause the most common inherited form of Parkinson's disease. The study, published online this month in the journal Public Library of Science, shows that upon specific modification called phosphorylation, LRRK2 protein binds to a family of proteins called 14-3-3, which has a regulatory function inside cells.

25 Mar 2011