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Tag: "signaling" at medical news

Money Spent On Cancer worth Every Penny

...ncer cells are immortal and do not obey the normal signaling system present in our body. Cancer cells lose the ability to become specialized cells and hence they become more primitive and reproduce quickly and haphazardly. Cancer cells lose the molecules on the surface that dictates the normal cells to cont...

How Does Leptin Work?

...an serve as a model for investigating all types of signaling pathways in selective regions of the brain.’ The researchers found that STAT3 production is essential for leptin's best-known action: acutely reducing food intake. Since obesity occurs when people become resistant to leptin's ‘curb your eating’ messa...

Cell Survival Depends on Chromosome Integrity

... putting an acetyl group on lysine-56, the cell is signaling that its DNA is newly made and as a result possibl...athways of Lysine Modification at Hopkins dissects signaling networks and pathways by developing and applying genetic and computational approaches, proteomics te...

Natural Approach to Immune Regulation May Help Transplant Patients

...e end of pregnancy. Growth factors and cytokines – signaling compounds involved in the development and function of the immune system – bring to the surface inhibitory receptors previously buried inside immune cells so they can interact with the HLA-G. Amazingly, scientists have documented this natural immuno...

Genes Identified To Protect Heart Muscles

...sm of oxygen and are known by scientists for their signaling role in cellular activity. The findings revealed that HO-1 exerted these remarkable protective effects by cooperating with another protective gene, Akt. The protective effect of HO-1 was dependent on the activation of Akt and vice-versa, indicating...

Gene Responsible For Mammary Gland Function, When Mutated Results in Leukemias

...KL1-linked SRF pathway is one of two such cellular signaling cascades of biochemical reactions that enable SRF to activate specific genes, according to Morris. The other pathway uses a group of three proteins collectively called TCF. These proteins help SRF bind to SRE DNA sequences and activate the expression...

Novel Approach Assists in Locating Leads for Drug Discovery

... sectors unlock the mysteries of gene function and signaling pathways throughout the human body, opening the door to the development of new drugs," said NIH Director Elias A. Zerhouni, M.D. In a paper published online in the Proceedings of the National Academy of Sciences (PNAS), a team from the NIH Chemical G...

Protein Involved In Embryo Formation Found In Malignant Cells

...ights the convergence of tumorigenic and embryonic signaling pathways. From a translational perspective, Nodal signaling provides a novel target for treatment of aggressive cancers such as melanomas," said Mary J. C. Hend...

Second Alagille Syndrome Gene discovered: More information on kidney disease

...e analyzed in the current study, JAG1 is part of a signaling pathway that governs important processes in early ...JAG1 and the NOTCH2 genes participate in the Notch signaling pathway. JAG1 codes for the ligand Jagged1, a signaling protein that triggers receptors in the pathw...

Marijuana Use Can Compromise Pregnancy

... in marijuana, can disrupt the body's finely tuned signaling system and interfere with a fertilized egg's abili...al conditions the two receptors are activated by a signaling molecule called anandamide, which is synthesized by an enzyme known as NAPE-PLD and then is degraded...

CD86 Found On B Cells Boosts Immune Response

...ses. ‘Our findings describe a previously unknown signaling pathway in B cells that helps regulate antibody pr... for changes in antibody levels and changes in the signaling molecules associated with antibody production inside the B cells. This enabled the scientists to tra...

Aging Critical For Alzheimer's Disease

...a revealed a surprise: "Worms with reduced insulin signaling seemed perfectly fine although they had high molec...shift." Two proteins controlled by insulin/IGF-1 signaling orchestrate detoxification--HSF-1, which takes care of aggregate break-down, and DAF-16, which media...

Cancer Stem Cells Could Hold Key to Brain Tumor Therapy

...lab studies the complex relationships between cell signaling pathways and the development of cancer, especially in the nervous system. The lab is investigating a number of molecular targets that contribute to cancer growth and malignancy. “Too often, brain tumor patients have been told there is no hope. Our ...

African-Americans Have A Reduced Response To Hepatitis C Treatment

...entary studies in genetics, immunology, interferon signaling and pharmacology, and virology. However, our study results indicate that the reduced response rate among African American patients is not caused by the usual predictors such as patient age, gender, pretreatment serum HCV concentrations, amount of fib...

Studies Find Connection Between Acid Reflux And Esophageal Cancer

... For the first time, researchers have outlined the signaling pathway from cells damaged by acid, to the progres...us. Now that we have a better understanding of the signaling pathway, we can possibly identify who is at risk of developing cancer by determining the levels of t...

Brain Regulation Present Even In Spineless Creatures

...f Oregon is to understand the intricacies of brain signaling that allow people, such as athletes, to repeat and adjust tasks they perform repeatedly. Cephalopods, which also include octopuses and squids, have 100 million nerve cells compared to the 10,000 in insects and the some one trillion in humans. "The ...

Two Chemical Compounds Restore Healthy Glucose Levels In Obese Mice

... a key component linking inflammation to metabolic signaling and as a gene that interferes with insulin sensitivity. (http://www.hsph.harvard.edu /press/releases/press 11202002b.html. ER stress appears to trigger abnormal JNK activity, which is often seen in obesity and type 2 diabetes. In the new Science p...

Sour Taste Sensors Identified

...king together to identify the cells, receptors and signaling mechanisms for three of the five tastes humans can sense -- sweet, bitter, and umami. The sour taste sensors have been found to be the primary gateway in all mammals for the detection of spoiled and unripe food sources. The receptor is found in a s...

Scientists Review Loeys-Dietz Syndrome in the Largest Ever Study to date

...ceptors act together to bind TGF-beta, a family of signaling molecules that controls cell growth, movement, activity and death by controlling whether certain genes are turned on or off. TGF-beta receptors normally are found on the cell's surface, facing the outside of the cell, where TGF-beta can be found floa...

Feedback Loop Governing Ovarian Development Unraveled

...l types that interact in a feedback loop through a signaling pathway are 1) primordial germ cells and 2) interm...l growth factor (EGF) receptors, docking ports for signaling molecules. Dr. Gilboa found that primordial germ cells produce a protein called Spitz. This protein ...

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