interactions 2 8

Tag: "interactions" at biology news

Clues to breast cancer hidden inside stem cells

...vo," says Gudjonsson. "You can analyse cell-cell interactions and signaling pathways in these cells during morphogenesis and in cancer progression." The Icelandic researchers are now focusing their efforts on how endothelial cells convey signals to stem cells in normal breast formation and in cancer. In collabo...

Driver of anthrax toxicity could lead to late-stage therapy

...nabling cells to take up anthrax toxin through its interactions with two distinct cell- surface proteins earlier shown to bind the "protective antigen carrier" of anthrax toxin, allowing its delivery into cells. The new findings "reveal a previously unsuspected biological role" for LRP6, a gene earlier found to ...

Ernst Mayr's theory illustrated in genetic epidemiology studies

...changes randomly, that causes a different suite of interactions to occur so that natural selection will drive the ...iology studies that we find these kinds of genetic interactions all over the place, so that modern molecular biology has confirmed Mayr's idea of genetic architect...

Invasive species harms native hardwoods by killing soil fungus

...or parasites to the disruption of long-established interactions among native organisms -- have been proposed to explain the success of invasive species, this new work is the first to show that an invasive plant harms native plants by thwarting the biological "friends" upon which they depend for growth. The work, ...

Taking a bite out of a fellow worker helps wasps recruit new foragers

...ing workforce. This study shows that these biting interactions play a central role in recruiting foragers and that biting has a role in communication that affects task performance in a colony." To study the wasps, O'Donnell first collected and anesthetized an average of about 300 workers from each of the coloni...

Genes involved in cell growth and cell division identified

...ting point for future studies concentrating on the interactions between genes involved in cell growth. ...

Picking apart how neurons learn

... from the field. The study shows definitively that interactions between the PICK1 protein and another group of proteins known as AMPA receptors are critical for specific neurons, called Purkinje cells, in the lower back part of the brain to become de-sensitized to certain molecular signals. Desensitization to m...

Living taste cells produced outside the body

...a had held that induction was somehow dependent on interactions with the nervous system, the current findings suggest otherwise. Ozdener explains, "By producing new taste cells in an in vitro system, our results demonstrate that direct stimulation from nerves is not necessary to generate taste cells from precurso...

Cortex matures faster in youth with highest IQ

...gesting that the effects of genes often depends on interactions with environmental events, so the determinants of intelligence will likely prove to be a very complex mix of nature and nurture. Also participating in the study were Drs. Dede Greenstein, Liv Clasen, Rhoshel Lenroot, and Nitin Gogtay, Child Psychiat...

Simple idea to dramatically improve dengue vaccinations

...ical calculations about the likelihood of specific interactions at the atomic level. They conducted trillions of calculations and gradually built up a bigger picture of what occurs in Dengue immunodominance. "When faced with more than one version of the virus, the immune system may respond preferentially against...

Largest study of human 'interactome' reveals a novel way

...ries made during the first large-scale analysis of interactions between proteins in our cells hold promise for ide...ing a database of more than 25,000 protein-protein interactions compiled by the Hopkins-IOB team. The result is believed to be the most detailed human "interactome...

A real time look at interactions between RNA and proteins

...rodents, the researchers were able to identify RNA interactions in live cells. In collaboration with Ûlo Langel from Stockholm University, the Penn investigators devised a many-talented molecule that does not get broken down by enzymes once inside a live cell. One end of the molecule, called a peptide nucleic aci...

Web model of influenza-host lifecycles will aid scientists in creating anti-viral drugs

A "starry sky" map linking the myriad interactions between the influenza virus and its human host wil... online mark the first time Reactome has displayed interactions between an infectious pathogen and its host, Dr. Scheuermann said. Pathogens such as influenza have...

Picking particles faster than one at a time

...ased cells, from cellular organelles right down to interactions among atoms in a protein." Together with work initiated by Adiga and his colleagues in confocal image analysis, electron microscopy of cell sections, and electron tomographic image analysis, he says that being able to model the whole range of morphol...

Scientists directly view immune cells interacting to avert autoimmunity

...rom autoimmune assaults. Analyzing these physical interactions experimentally in living organs or even in cell cu...ology, includes online videos of these immune cell interactions ?the first time this has been accomplished. The scientists used fluorescent dye to mark different t...

Researchers develop new method to help find deadly malaria parasite's Achilles heel

...interactions in Plasmodium falciparum with protein interactions reported earlier in four other well studied model ...aylor Sittler, said the malaria parasite's protein interactions "set it apart from other species." "We've known since the Plasmodium genome was sequenced three yea...

Technique offers new view of dynamic biological landscape

...new technique for analyzing the network of genetic interactions promises to change how researchers study the dynam...d the technique. For example, E-MAPs of human gene interactions could enable researchers to optimize drug treatments to patients' genetic backgrounds. It might also...

Mapping alcohol brain damage

...nt of the brain, which affect planning, and social interactions and inhibitions. The UQ team with collaborators from The University of Texas, want to find out what makes these cells so vulnerable. Professor Dodd said his team was analysing brain tissue from dead alcoholics, mostly Anglo-Celtic men who've aver...

Researchers discover new form of cancer gene regulation

...ues ranging from cancer formation to environmental interactions in development and will point the way to similar mechanisms of control in other genes," said Philip M. Iannaccone, M.D., who led the study. Iannaccone is George M. Eisenberg Professor of Pediatrics at Northwestern University Feinberg School of Medic...

UCLA discovery will aid in treatment of patients with a deadly brain cancer

...n or loss of the PTEN protein," Mischel said. "The interactions of the two may be important in determining response to targeted agents." ...

1 2 3 4 5 6 7 8 9 10