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Cell Biology News
Wed, 14 Nov 2018 16:43:41 EST
Microgel powder fights infection and helps wounds heal
While making smart glue, a team of engineers discovered a handy byproduct: hydrogen peroxide. In microgel form, it reduces bacteria and virus ability to infect by at least 99.9 percent.
Wed, 14 Nov 2018 14:43:28 EST
Symbiosis a driver of truffle diversity
Truffles are the fruiting bodies of the ectomycorrhizal (ECM) fungal symbionts residing on host plant roots. In many Ascomycota and Basidiomycota lineages, truffle-forming species have evolved independently in nearly every major group. This suggests that symbiosis drives evolution of truffle diversity and selects for specific traits.
Wed, 14 Nov 2018 13:20:28 EST
Researchers discover novel 'to divide or to differentiate' switch in plants
Scientists have uncovered a novel mechanism in plants that controls an important decision step in stomatal lineage to divide asymmetrically or to differentiate. This is a decisive step for the formation of stomata, tiny pores on the plant surface, produced by asymmetric cell division.
Wed, 14 Nov 2018 12:03:26 EST
Mothers infected by dengue may have babies with higher risk of severe Zika, and vice versa
Two new studies provide evidence that previous Dengue infection in pregnant mothers may lead to increased severity of Zika in babies, and that previous Zika infection in mice mothers may increase severity of Dengue infection in their pups. The research supports that maternally acquired antibodies for one virus can assist infection by the other by a process unique to flaviviruses.
Wed, 14 Nov 2018 12:03:14 EST
Rainforest vine compound starves pancreatic cancer cells
Pancreatic cancer cells are known for their ability to thrive under extreme conditions of low nutrients and oxygen, a trait known in the cancer field as 'austerity.' The cells' remarkable resistance to starvation is one reason why pancreatic cancer is so deadly. Now researchers have identified a compound from a Congolese plant that has strong ''antiausterity'' potential, making pancreatic cancer cells susceptible to nutrient starvation.
Wed, 14 Nov 2018 10:43:56 EST
Salmon are shrinking and it shows in their genes
Male salmon are maturing earlier and becoming smaller, and it shows in their genes. This was the discovery of a study that examined scale samples from salmon over a 40-year period, and looked at the population genetic profile of a gene that determines salmon's age of maturity and size. The results show that the 'big salmon gene version' has become rarer in the population over time, and has been replaced by the 'small salmon gene version'.
Tue, 13 Nov 2018 15:51:53 EST
Visualizing 'unfurling' microtubule growth
Living cells depend absolutely on microtubules that form a scaffolding for moving materials inside the cell. Microtubule fibers are hollow rods made of much smaller tubulin subunits that spontaneously assemble at one end of the rod, but exactly how they do this inside the crowded environment of living cells has been a mystery. Now researchers have uncovered the mechanism that puts these blocks in place.
Tue, 13 Nov 2018 15:51:50 EST
Synthetic DNA-delivered antibodies protect against Ebola in preclinical studies
Scientists have successfully engineered novel DNA-encoded monoclonal antibodies (DMAbs) targeting Zaire Ebolavirus that were effective in preclinical models. Study results showed that DMAbs were expressed over a wide window of time and offered complete and long-term protection against lethal virus challenges. DMAbs may also provide a novel powerful platform for rapid screening of monoclonal antibodies enhancing preclinical development.
Tue, 13 Nov 2018 11:04:05 EST
The dawn of a new era for genebanks
One important aspect of biodiversity is genetic variation within species. A notable example is the variety of cultivars of crop plants. Scientists have now characterized at the molecular level a world collection of barley, comprising seed samples from more than 22,000 varieties.
Tue, 13 Nov 2018 11:03:59 EST
Moths and magnets could save lives
Bioengineers have combined a virus that infects moths with magnetic nanoparticles to create a potential new therapy for inherited genetic diseases like muscular dystrophy, sickle cell, cystic fibrosis, spinal muscular atrophy and some forms of cancer.
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