Genetics

Killer T vs. memory: DNA isn't destiny for T cells

Scientists at St. Jude Children's Research Hospital have solved an immunology puzzle. A CD8+ T cell can have two functionally distinct daughter cells after it divides, despite the cells being genetically identical. The researchers ...

Neuroscience

For neurons, where they begin isn't necessarily where they end

The making of a human brain remains a mostly mysterious process that races from an embryonic neural tube to more than 100 billion interconnected neurons in the brain of a newborn. To achieve this marvel of biological engineering, ...

Neuroscience

Brain stem cells divide over months

Stem cells create new nerve cells in the brain over the entire life span. One of the places this happens is the hippocampus, a region of the brain that plays a significant role in many learning processes. A reduction in the ...

Medical research

Fine-tuning stem cell metabolism prevents hair loss

A team of researchers from Cologne and Helsinki has discovered a mechanism that prevents hair loss: hair follicle stem cells, essential for hair to regrow, can prolong their life by switching their metabolic state in response ...

Oncology & Cancer

Researchers find new insights linking cell division to cancer

To replace aging and worn cells, the body primarily uses a process called mitosis, in which one cell divides into two. When a cell is ready to divide, it duplicates its DNA so a complete copy is available for each of the ...

Oncology & Cancer

The origin of genetic mutations in cancer

When a cell divides into two daughter cells, it must replicate its DNA according to a very specific scenario. In the presence of some disruptive elements, however, cancer cells are unable to perform this operation optimally; ...

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