Scientists have shown for the first time that an enzyme crucial to keeping our immune system healthy “surfs” along the strands of DNA inside our cells. The researchers used extremely powerful microscopy to watch how the enzyme AID (activation-induced deoxycytidine deaminase) moves around and interacts with other molecules.
The detection of light by pigments in the retina, called rhodopsin or visual purple, leads to our sense of vision. New experiments by scientists from the Max Planck Institute for the Structure and Dynamics of Matter and the University of Toronto have revealed that the primary photochemical event of this process operates at the fundamental molecular speed limit.
The first-ever images of the protein complex that unwinds, splits, and copies double-stranded DNA reveal something rather different from the standard textbook view. The electron microscope images, created by scientists at the U.S. Department of Energy's Brookhaven National Laboratory with partners from Stony Brook University and Rockefeller University, offer new insight into how this molecular…
A unique molecule developed at Duke Medicine, the University of North Carolina at Chapel Hill and MacroGenics, Inc., is able to bind HIV-infected cells to the immune system’s killer T cells. It could become a key part of a shock-and-kill strategy being developed in the hope of one day clearing HIV infection.
When a pathogen invades the body, specific cells in the human immune system are ready to take immediate action in order to destroy it. The molecular characteristics of these killer cells were unknown until recently. Now, for the first time, a team from the Technical University of Munich (TUM) has managed to create a molecular profile of the protective cells. By studying these immune cells from…
EKF Diagnostics, the global in vitro diagnostics company, announces that two research posters supporting the application of its PointMan DNA enrichment technology, for rapid and sensitive detection of lung cancer mutations, have been delivered at key conferences.
Premature births are intimately linked with inflammation of the uterine tissue, a biological response which induces contractions and preterm labor. In their search for a mean to prevent this phenomenon and complications related to deliveries occurring before 37 weeks of gestation, researchers at CHU Sainte-Justine and University of Montreal discovered an agent that shows efficacy in inhibiting…
There may be two new ways to fight AIDS -- using a heat shock protein or a small molecule – to attack fibrils in semen associated with the human immunodeficiency virus (HIV) during the initial phases of infection, according to new research from the Perelman School of Medicine at the University of Pennsylvania.
For some, TOR may bring to mind a Celtic mountain or perhaps an Internet privacy group. In the world of molecular biology it’s a cellular pathway that’s found in everything from yeast to mammals. mTOR (as it’s called in mammals) plays a central role in instructing the cell to grow and divide in response to nutrients. When it’s turned down, the cell shifts into a second, tidying mode,…
The loss of a critical receptor in a special class of inhibitory neurons in the brain may be responsible for neurodevelopmental disorders including autism and schizophrenia, according to new research by Salk scientists.
Innovative presentations, ground-breaking science and inspirational lectures underlined the diversity of sessions at the British Cardiovascular Society 2015 conference held in Manchester this June.
An organic dye that can light up cancer cells for two powerful imaging techniques providing complementary diagnostic information has been developed and successfully tested in mice by A*STAR researchers.
Researchers at Rice University and University of Texas MD Anderson Cancer Center have developed a way to mimic the conditions under which cancer tumors grow in bones.
ELITechGroup Molecular Diagnostics and Precision System Science, Co., Ltd (PSS), a leading global provider of laboratory instruments for nucleic acid extraction, jointly announced the upcoming CE-IVD marking of ELITe InGenius for IVD applications in Europe and the upcoming availability of the instrument as Laboratory Use Equipment in the US.
Every time a cell divides, the ends of chromosomes – the threads of DNA residing in the nucleus – shorten a bit. Once the chromosome ends, called telomeres, become too short, cells normally stop dividing. Scientists from the German Cancer Research Center (DKFZ) have now discovered how cancer cells make use of specific DNA repair enzymes to extend the telomeres. In this way, they escape the…
Seegene Inc. today announced that it has entered into a worldwide collaboration agreement with QIAGEN N.V. to develop and supply molecular diagnostic assays.
The view across the Atlantic – it fills Professor Fabian Kiessling, Chair of Experimental Molecular Imaging at the RWTH Aachen (Rhine-Westphalia Institute of Technology Aachen), with optimism. The USA offers more opportunities for molecular imaging. Only recently, new tracers for Alzheimer’s were accepted as reimbursable in some centres, whilst the development of new diagnostics in Europe…
Researchers at the University of California, San Diego School of Medicine and Moores Cancer Center have discovered a molecular mechanism that connects breast tissue stiffness to tumor metastasis and poor prognosis. The study may inspire new approaches to predicting patient outcomes and halting tumor metastasis.
Weizmann Institute scientists identify a potential drug molecule that stops cancer cells, but not healthy ones, from getting their “mail”.
It may come as a bit of a surprise to learn that bacteria have an immune system – in their case to fight off invasive viruses called phages. And like any immune system – from single-celled to human – the first challenge of the bacterial immune system is to detect the difference between “foreign” and “self.” This is far from simple, as viruses, bacteria and all other living things…
This article discusses examples of applications of genetic analyses in coagulation disorders and haematological and oncological diseases. Professor Christine Mannhalter highlights the impact changes have on the occurrence and severity of diseases and their influence on therapy response. Report: Christine Mannhalter
Johns Hopkins scientists have discovered that neurons are risk takers: They use minor ‘DNA surgeries’ to toggle their activity levels all day, every day. Since these activity levels are important in learning, memory and brain disorders, the researchers think their finding will shed light on a range of important questions.
Professor Hedvig Hricak MD PhD, Chair of the Department of Radiology at the Memorial Sloan-Kettering Cancer Centre, New York, and Professor of Radiology at Cornell University, Ithaca, New York, is a notable expert on crosssectional anatomic and molecular imaging, particularly of gynaecologic and prostate cancers. EH interviewed her about the potential and impact of more precise viewing of inter-…
A new CE-IVD certified molecular test has been added to Greiner Bio-One’s Genspeed test portfolio for nosocomial infections. In addition to the recently introduced MRSA test, the Genspeed C.diff OneStep test addresses the international need to combat Clostridium difficile (C. diff) infections. The test is analysed on the Genspeed R2 Analyser.
Molecular profiling is transforming brain cancer management and radiologists must get to grips with the upcoming paradigm that will affect the way they report findings. Renowned neuroradiologist Professor Anne G. Osborn from the University of Utah, School of Medicine, Salt Lake City, unveiled the latest advances in brain pathology during the Nikola Tesla Honorary Lecture last week at ECR…