Cell Biology

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Novel molecular survival strategy of Shigella bacterium uncovered

Enteric pathogens, such as the bacterium Shigella, can cause severe intestinal disease with bloody diarrhea. In a new study, researchers from Tokyo Medical and Dental University (TMDU) discovered a novel molecular survival strategy by which Shigella is able to cause damage to the intestines despite two elaborate protective mechanisms used by host cells.

19 Aug 2020

Researchers study how bacteria adapt to their host cells

In the environment, they are often found inside unicellular organisms. A research team led by Matthias Horn at the Centre for Microbiology and Environmental Systems Science at the University of Vienna has made use of laboratory experiments to gain a better understanding of how these bacteria adapt to their host cell over time.

19 Aug 2020

New study reveals surprising features in coral sperm and eggs

When stony corals have their renowned mass spawning events, in sync with the moon's cycle, colonies simultaneously release an underwater "cloud" of sperm and eggs for fertilization.

From Rutgers University 19 Aug 2020

LJI scientists tracked down rare stem cells that generate neutrophils in humans

Neutrophils are the warriors of the immune system. They are always ready to spring to action to help heal injuries or fight off disease. Unless, that is, something goes wrong in their developmental process.

19 Aug 2020

Study investigates how Ebola virus adapts to bat and human cells

A new study by researchers from The University of Texas Medical Branch at Galveston uncovered new information on why the Ebola virus can live within bats without causing them harm, while the same virus wreaks deadly havoc to people.

19 Aug 2020

Long-term opioid use in back-pain patients leads to production of anti-opioid antibodies

University of Wisconsin-Madison scientists have discovered that a majority of back-pain patients they tested who were taking opioid painkillers produced anti-opioid antibodies.

19 Aug 2020

Increased fructose intake during pregnancy can alter offspring's metabolism

An increased level of fructose intake during pregnancy can cause significant changes in maternal metabolic function and milk composition and alter the metabolism of their offspring, researchers from the University of Otago, Wellington, have found.

19 Aug 2020

Researchers discover the exit route for Vibrio bacteria from cells

As soon as the foodborne pathogen Vibrio parahaemolyticus infects a human intestinal cell, the bacteria are already planning their escape. After all, once it is in and multiplies, the bacterium must find a way out to infect new cells.

19 Aug 2020

Drugs designed to lower alpha-ketoglutarate levels could help fight DIPG tumors

Every year, 150 to 300 children in the United States are diagnosed with diffuse intrinsic pontine gliomas (DIPGs), aggressive and lethal tumors that grow deep inside the brain, for which there are no cures.

19 Aug 2020

Novel gene editing approach removes latent herpes simplex virus 1

Infectious disease researchers at Fred Hutchinson Cancer Research Center have used a gene editing approach to remove latent herpes simplex virus 1, or HSV-1, also known as oral herpes.

19 Aug 2020

Study shows DNA damage causes cells to reprogram themselves into stem cells

Researchers have discovered that when DNA in the moss Physcomitrella patens is damaged, it causes cells to reprogram on their own to change into stem cells.

19 Aug 2020

Scientists identify complex enzyme that protects cells from constant DNA damage

A team of researchers have revealed the mechanism and 3D structure of a complex enzyme that guards cells against persistent DNA damage.

19 Aug 2020

Researchers detect robust T cell response in patients with mild COVID-19 infection

Mild cases of COVID-19 pandemic can activate strong responses from memory T cells, even when detectable virus-specific antibody responses are absent.

19 Aug 2020

Study shows how mitochondrial defects lead to neurodevelopmental diseases

The tiny organelles mitochondria supply the energy crucial for all cells in the human body, specifically in the brain that consumes an excessive amount of fuel.

18 Aug 2020

Study shows how proteins act as a defense mechanism to protect their own DNA

Viruses usually inject their DNA into a host cell to multiply. As soon as this foreign material penetrates the intracellular fluid, it activates a defense mechanism called the cGAS-STING pathway.

18 Aug 2020

High-speed AFM enables real-time visualization of influenza A hemagglutinin during viral entry

Unlike living organisms, to avoid extinction, viruses need to hijack living host machineries to generate new viruses.

18 Aug 2020

Switching off 'master regulator' may offer neuroprotection from Parkinson's-related damage

Switching off a molecular "master regulator" may protect the brain from inflammatory damage and neurodegeneration in Parkinson's disease, reports a study published today in Nature Neuroscience.

18 Aug 2020

Regulating cancer stemness using combination of nanotechnology and genetic engineering

The development of chemotherapeutic agents with selective anti-cancer activities is increasingly unattractive due to the emergence of resistance, poor targeting of cancer tissues, and subsequent metastasis.

18 Aug 2020

Rotating microscope can track and measure behavior of ocean organisms

Like spirits passing between worlds, billions of invisible beings rise to meet the starlight, then descend into darkness at sunrise. Microscopic plankton's daily journey between the ocean's depths and surface holds the key to understanding crucial planetary processes, but has remained largely a mystery until now.

18 Aug 2020

Novel receptor protein can be a promising treatment for COVID-19

A novel receptor protein that binds to the SARS-CoV-2 virus and prevents it from entering cells may hold promise for treating COVID-19 and other coronavirus-related diseases, according to research published online Aug. 4 in the journal SCIENCE.

18 Aug 2020