News tagged with daughter cells
'Pulverized' chromosomes linked to cancer?
They are the Robinson Crusoes of the intracellular world -- lone chromosomes, whole and hardy, stranded outside the nucleus where their fellow chromosomes reside. Such castaways, each confined to its own "micronucleus," ...
Jan 19, 2012 |
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'Back talk' from blood cells to their progenitors is critical to balancing blood supply
(PhysOrg.com) -- When it comes to the body's blood supply, maintaining the right balance is crucial. UCLA stem cell scientists have now discovered that in the common fruit fly, this balancing act requires a complex "conversation" ...
Jan 05, 2012 |
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Study uncovers evidence on how drug-resistant tuberculosis cells form
A new study led by Harvard School of Public (HSPH) researchers provides a novel explanation as to why some tuberculosis cells are inherently more difficult to treat with antibiotics. The discovery, which showed that the ways ...
Dec 15, 2011 |
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New study shows how B cells may generate antibodies after vaccination
Steve Reiner, MD, professor of Medicine, and Burton Barnett, a doctoral student in the Reiner lab at the Perelman School of Medicine at the University of Pennsylvania, have shown how immune cells, called B ...
Dec 15, 2011 |
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Suppression of protein critical to cell division stops cancer cells from dividing, kills them
Suppressing a newly identified and characterized protein involved in regulating cell division could be a novel strategy to fight certain cancers because it stops the malignant cells from dividing and causes them to die quickly, ...
Dec 09, 2011 |
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How old yeast cells send off their daughter cells without the baggage of old age
The accumulation of damaged protein is a hallmark of aging that not even the humble baker's yeast can escape. Yet, aged yeast cells spawn off youthful daughter cells without any of the telltale protein clumps. ...
Nov 23, 2011 |
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One for you, one for me: Researchers gain new insight into the chromosome separation process
Each time a cell divides -- and it takes millions of cell divisions to create a fully grown human body from a single fertilized cell -- its chromosomes have to be accurately divvied up between both daughter ...
Nov 17, 2011 |
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Chromosome centromeres are inherited epigenetically
Centromeres are specialised regions of the genome, which can be identified under the microscope as the primary constriction in X-shaped chromosomes. The cell skeleton, which distributes the chromosomes to ...
Nov 03, 2011 |
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Scientists discover how daughter cells receive the same number of chromosomes
Scientists at Warwick Medical School have uncovered the molecular process of how cells are by-passing the body's inbuilt 'health checkpoint' with cells that carry unequal numbers of chromosomes that have a higher risk of ...
Nov 01, 2011 |
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Research team clarifies mechanics of first new cell cycle to be described in more than 20 years
An international team of researchers led by investigators in the U.S. and Germany has shed light on the inner workings of the endocycle, a common cell cycle that fuels growth in plants, animals and some human tissues and ...
Oct 30, 2011 |
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Do bacteria age? Biologists discover the answer follows simple economics
When a bacterial cell divides into two daughter cells and those two cells divide into four more daughters, then 8, then 16 and so on, the result, biologists have long assumed, is an eternally youthful population of bacteria. ...
Oct 27, 2011 |
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Study reveals new role for RNA interference during chromosomal replication
At the same time that a cell's DNA gets duplicated, a third of it gets super-compacted into repetitive clumps called heterochromatin. This dense packing serves to repress or "silence" the DNA sequences within -- which could ...
Oct 16, 2011 |
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How bookmarking genes pre-cell division hastens their subsequent reactivation
In order for cells of different types to maintain their identities even after repeated rounds of cell division, each cell must "remember" which genes were active before division and pass along that memory to its daughter ...
Oct 09, 2011 |
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Genomic architecture presages genomic instability: study
When cells divide normally, DNA gets copied perfectly and distributed among the daughter cells with an even hand. Occasionally though, DNA breaks during division and is rearranged, resulting in duplications or deletions of ...
Oct 02, 2011 |
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New technique identifies first events in tumor development
A novel technique that enables scientists to measure and document tumor-inducing changes in DNA is providing new insight into the earliest events involved in the formation of leukemias, lymphomas and sarcomas, and could potentially ...
Sep 29, 2011 |
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