Leaking away essential resources isn’t wasteful, actually helps cells grow

Experts have been unable to explain why cells from bacteria to humans leak essential chemicals necessary for growth into their environment. New mathematical models reveal that leaking metabolites — substances involved in the chemical processes to sustain life with production of complex molecules and energy — may provide cells both selfish and selfless benefits.advertisement Previously, […]

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Scientists discover how rogue communications between cells lead to leukemia

New research has deciphered how rogue communications in blood stem cells can cause Leukemia.advertisement The discovery could pave the way for new, targeted medical treatments that block this process. Blood cancers like leukemia occur when mutations in stem cells cause them to produce too many blood cells. An international team of scientists, including researchers at […]

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Programmable nests for cells

Using DNA, smallest silica particles, and carbon nanotubes, researchers of Karlsruhe Institute of Technology (KIT) developed novel programmable materials. These nanocomposites can be tailored to various applications and programmed to degrade quickly and gently. For medical applications, they can create environments in which human stem cells can settle down and develop further. Additionally, they are […]

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Living robots built using frog cells

African clawed frog, Xenopus laevis (stock image).Credit: © Ezume Images / Adobe Stock A book is made of wood. But it is not a tree. The dead cells have been repurposed to serve another need.advertisement Now a team of scientists has repurposed living cells — scraped from frog embryos — and assembled them into entirely new life-forms. These […]

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How cells relieve DNA replication stress

DNA stores all of the information necessary for life phenomena, and a cell transmits its own genetic information to two daughter cells through DNA replication and cell division. Replication stress can be caused by extracellular and intracellular sources during DNA replication, which leads to slowed or stalled replication. If cells do not properly cope with […]

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Researchers map malaria parasites proliferating in human blood cells

Malaria parasites transform healthy red blood cells into rigid versions of themselves that clump together, hindering the transportation of oxygen. The infectious disease affects more than 200 million people across the world and causes nearly half a million deaths every year, according to the World Health Organization’s 2018 report on malaria. Until now, however, researchers […]

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How cells learn to ‘count’

One of the wonders of cell biology is its symmetry. Mammalian cells have one nucleus and one cell membrane, and most humans have 23 pairs of chromosomes. Trillions of mammalian cells achieve this uniformity — but some consistently break this mold to fulfill unique functions. Now, a team of Johns Hopkins Medicine researchers have found […]

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