Tag: "cell" at biology news

Sandia experiments may reduce possibility of future water wars

...mplement the wirelessly networked sensor array and cell phone data link, expected to be installed in mid-September. The idea of a bi-national laboratory While agricultural tradition, cultural factors, and economic realities make immediate implementation of hydroponic greenhouse methods f...

Maine-based biophysics institute gets funding for first US-based 4Pi nanoscale microscope

...ing the nanostructure of genetic material within a cell in three dimensions. The first such instrument is ...at the University of Maine in Orono, molecular and cell biology at the Maine Medical Center Research Institute (MMCRI) in Scarborough, and genetics and geno...

A new protein is discovered to play a key role in cancer progression

...e cause of this signaling disruption of the normal cell cycle has not been fully understood. For the first...that can suppress tumor development by signaling a cell to stop growing. The unresponsiveness to TGF-b signaling has been associated with a variety of human...

Final Alert: 16th EORTC NCI AACR Symposium

...hers find way to exploit tumour blood vessels New cell death-inducing monoclonal antibody results from early study targeting TRAIL R2 protein Lypcopene and vitamin E inhibits prostate tumours new laboratory results underpin epidemiological evidence patient trial now started International trial finds...

Smac-ing back at cancer cells

By mimicking a molecular switch that triggers cell death, researchers have killed cells grown in the ...maller molecule is better able to pass through the cell membrane to reach the cell's interior, where IAP-caspase resides. "The idea for making this inhibit...

News tips from the Journal of Neuroscience

...adult zebrafish Becker et al. Expression of the cell adhesion molecule L1 is generally correlated with ...f channels, release of cytochrome c, and apoptotic cell death. A selective inhibitor of JNK reduced apoptosis in the ischemic core, blocked interactions bet...

New evidence of radiation risk in childhood leukaemia

...but also results in an elevated mutation rate many cell divisions after the initial irradiation damage. Yuri Dubrova, Professor of Genetics at the University of Leicester, obtained the first experimental evidence that germ-line mutation rates in unexposed offspring of irradiated male mice do not return t...

Extreme stretch-growth of axons

...." At this point, it is unclear what receptors and cell signaling pathways are involved to get the process started, but from this and previous studies the investigators do report that the signal is from a mechanical stimulus along the length of the axon as opposed to a chemical stimulus. "The stretch is c...

Common cold virus can cause polio in mice when injected into muscles

...different docking sites, called receptors, on host cell surfaces. The current study turned that belief on its head, said Gromeier. Poliomyelitis has long been regarded as the signature of poliovirus, a virus that recognizes and binds to the CD155 receptor. However, the mice were genetically engineered to ...

Mitochondrial genes cause nuclear mischief

While the nucleus of a cell may be its command headquarters, mitochondria are equally vital--they are the power plants of the cell, and without them all cellular activity would quickly and irrevocably come to a halt. Testifying to their origins as once free-living bacteria, mit...

How do you mend a broken heart?

... the project. He recently discovered a multipotent cell (a cell which can give rise to a wide range of other types of cells) which has been successfully used in cel...

Bone marrow cells routinely help with wound healing

...one marrow from the mice and then performed a stem cell transplant into a genetically identical strain of ...issues such as skin. "What we have here is a new cell population that was not previously recognized," Isik said. "The bone marrow cells help form the matr...

Single isolated mouse skin cell can generate into variety of epidermal tissues

...howed, for the first time, that an individual stem cell can renew itself in the laboratory and then be use...is is first work that indicates a single skin stem cell can generate both epidermis and hair, even after propagation in the lab," Fuchs says. "The potential...

Genuine stem cells found in skin might treat hair loss, wounds

...ineages of epidermis and hair," said Elaine Fuchs, cell biologist at Rockefeller University and senior aut... laboratory and retain a capacity to make multiple cell types when grafted." The team's analysis of the versatile skin cells also offers new insights into t...

Optimizing protein's 'death domain' halts leukemia in laboratory study

...have pioneered studies of apoptosis, or programmed cell death, that rids the body of damaged or unneeded c...ther "survival" proteins act to prevent programmed cell death. One hallmark of cancer is that an excess of anti-death or survival proteins overwhelms the sy...

The birth of a beak

...t be made through differences in the regulation of cell behaviors," Chuong notes. Beaks are actually a col...several BMPs play a role in enhancing the rates of cell division and growth and regulating major developmental events including bone differentiation. Deregu...

Battle between bubbles might have started evolution

...ordial genetic machinery that actively synthesized cell membranes or otherwise influenced cell stability or division. The researchers, led by Howard Hughes Medical Institute investigator Jack W....

Skin stem cells give hairless mice hair

...hether there was a single type of multipotent stem cell within the bulge, or a bag of different kinds of s...m the bulge by fusing antibodies to characteristic cell surface molecules. "An important aspect of this paper was that we found we could isolate and charac...

Small, Smac-like molecule encourages death of cancer cells

...ar protein Smac, a molecule that lifts barriers to cell death. Dr. Xiaodong Wang, professor of biochemistr...the Science paper, discovered Smac in 2000. "Every cell in our body has a self-destruction apparatus that becomes activated when a cell needs to be terminat...

Molecular staples shape a cancer killer

...ilize the molecule so that it selectively triggers cell death. The idea for developing the compound emerg...ttest research teams currently studying programmed cell death, or apoptosis, a genetic program that executes cells that are no longer needed. Using the biol...

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