Antigens stick out from cells like molecular signposts, saying kick me to the immune systems soldiers.
Apo A-1 is thought to be the key HDL component that removes cholesterol from cells.
FORBES: Early Look: New Methods To Enhance Cholesterol Efflux
His team targeted the crucial class of proteins that are secreted from cells.
Developed by Will Wright, Spore involves players using tools to help their creations evolve from cells to civilised beings.
Stem cells can also be derived from cells taken from an adult.
The Initiative will include a large-scale effort to map the topography of the brain, from cells to circuits, which will first require some more sophisticated imaging techniques.
FORBES: President Obama Pledges $100 Million To The Human BRAIN Initiative
Now, researchers at Wake Forest University Baptist Medical Center have suggested the condition could be caused by faulty signals from cells in an area of the brain called the basal ganglia.
But Pfizer's Schear points to new studies presented at the AHA meeting that showed HDL made with torcetrapib did every bit as well at removing cholesterol from cells as the natural stuff.
New, faster genetic sequencers are making this work ever more possible, especially since they don't require DNA to be extracted from cells and then replicated in bacteria, a process that can actually cause valuable data to be lost.
Supporters of ongoing stem cell research -- which is controversial enough on its own because some existing stem cell lines were created from cells extracted from aborted fetuses -- say the field of study holds the promise of reversing or even curing many diseases.
Cells are scraped from the biopsied tissue, allowed to multiply, after which muscle cells are separated from urethral cells.
South Korea's researchers have taken egg cells from volunteer women, removed the nuclei from those cells (which contain only half of the genetic complement required to make a human being, since the other half is provided by the sperm), and replaced each nucleus with one taken from one of the volunteer's body cells (which contains a full genetic complement).
We will be growing new organs from stem cells that are created from our own skin cells.
FORBES: The World in 2033: Big Thinkers And Futurists Share Their Thoughts
Except that researchers still couldn't prove that the heart, nerve, muscle and other cells they made from the iPS cells were exactly like the ones generated from the embryonic stem cells.
Also known as reprogrammed stem cells, iPSCs are derived from somatic cells taken from adults, and offer researchers a way to examine the development of diseases.
FORBES: Aberrations Pose A Challenge for Reprogramming Stem Cells
However, on closer examination, the new cells proliferating in the petri dish contained the florescent marker from the brain cells and the DNA from the embryonic stem cells.
Dirks showed that some of the immature-looking cells from his patients could form tumorlike clumps in the test tube, unlike most other cells from the tumors, but he didn't have a method to pluck out the stem cells.
She'd like to isolate the signals the liver cells get from neighboring cells and perhaps eliminate the need for other cell types.
In addition to producing stem cells to treat spinal cord injuries, Geron says, it has seven other types of cells derived from stem cells in its pipeline.
Post has been experimenting with growing in vitro meat from myosatellite cells, extracted from mammalian biopsies.
Geron scientists now manufacture seven different types of human cells from embryonic stem cells.
The researchers also demonstrated that severe injury is not necessary for the formation of mature liver cells from bone marrow cells.
As soon as they know how to make liver cells from embryonic stem cells, it can start selling them to drug companies.
Kawashima H et al. Detection and sequencing of measles virus from peripheral mononuclear cells from patients with inflammatory bowel disease and autism.
Working on mice, they showed that DISC1 was active, both in cells taken from embryos and in brain stem cells taken from adult mice.
Scientists are very excited by the announcement of these findings, that cells that look and act like stem cells can be created from skin cells (known in science as fibroblasts).
They broke these up, in order to extract cardiac stem cells from them (these cells can be identified by the presence on their surfaces of a particular protein), and then bred the stem cells in tissue cultures until they numbered millions.
ECONOMIST: Stem cells and medicine: Repairing broken hearts | The
Islet cells, found in the pancreas, could theoretically be developed from stem cells.
But they say this is an advantage, because it means that cancer cells can be identified without having to pin down the precise molecular markers which make them different from healthy cells.
Crumpton says increasingly the threat is from small cells, even lone terrorists working on their own.
应用推荐