Even cells at the top of the hierarchy generally express only a subset of the stem
cell genes studied.
Not exact matches
I'm helping a group
study a
cell line that has been engineered to remove a particular
gene.
He attended UC Berkley and Sonoma State University where he
studied Cell Biology and worked at the USDA Plant
Gene Expression Center.
This
study built on previous research from the Sundrud lab, which showed that when TH17
cells entered the intestine in human tissue samples, they increased the expression of a
gene called MDR1.
Specifically, the
study reveals a mechanism that helps explain how dividing
cells pass patterns of epigenetic information called methyl tags to their daughter
cells, a crucial part of regulating
gene expression across
cell generations.
The shared patterns of
gene expression in the limbs and phallus are generated in part by a common set of noncoding DNA, also called «elements» or «enhancers,» which act to control
gene expression in both of these structures, argues a
study published October 1 in Developmental
Cell.
McCallion's strategy to make sense of all this data looks at the active
genes in
cells affected by a disease, groups of
genes that interact with one another, their vulnerability to mutation and information from past scientific
studies to filter more than a thousand
gene candidates for disease risk down to just a handful within any one implicated region.
The
study, led by Dr Len Stephens and Dr Phill Hawkins and published today in the journal Molecular
Cell, reveals why loss of the PTEN
gene has such an impact on many people with prostate cancer, as well as in some breast cancers.
A little -
studied gene may explain how some liver cancer
cells obtain the nutrition they need to proliferate, according to new research from the University of Maryland.
They also looked for
genes not previously
studied for having a role in fusing muscle stem
cells.
«Combination therapy strengthens T
cells in melanoma pre-clinical
study: Findings have implications for treating tumors lacking tumor suppressor
gene PTEN.»
A pre-clinical
study of two drugs designed to boost T
cell performance, has revealed the agents, when give in combination, may enhance the immune system's ability to kill melanoma tumors deficient in the tumor suppressor
gene PTEN.
«One
gene closer to regenerative therapy for muscular disorders:
Study identifies
gene that gets muscle
cells to fuse together.»
Led by researchers at the Cincinnati Children's Hospital Medical Center Heart Institute, the
study demonstrates the
gene Gm7325 and its protein — which the scientists named «myomerger» — prompt muscle stem
cells to fuse and develop skeletal muscles the body needs to move and survive.
Sutherland says the
genes she
studies are already silenced in healthy adult tissue, so theoretically researchers should be able to design therapies that re-silence them in cancer
cells without side effects.
RNAScope ISH was developed by Advanced
Cell Diagnostics (ACD) Inc., initially for
studies of
gene expression in animal (and especially human) tissues.
New treatments for spinal cord injury, including stem
cells,
gene therapy and electrical stimulation, are being
studied.
The
gene makes a protein that controls the quantities of other proteins a
cell produces, and
studies in roundworms suggest that the
gene is involved in growth and development throughout life.
Yang said the
study not only indicated which
genes are affected by traumatic brain injury and linked to serious disease, but also might point to the
genes that govern metabolism,
cell communication and inflammation — which might make them the best targets for new treatments for brain disorders.
This fits with
studies we've conducted in the past in which we found that the
gene primes blood stem
cells for leukaemic transformation.»
Although the regulation of this
gene has a strong «
cell cycle control» component, I was more interested in
studying cell cycle regulation «proper.»
According to Izpisúa Belmonte, who is also a professor at the
gene expression laboratories of the Salk Institute for Biological
Studies in San Diego, California, CMRB aims to become «a research centre of excellence in south Europe in the line of world - recognized institutions such as the Salk or the Whitehead institutes, where both pre - and postdoctoral researchers receive multidisciplinary training of the highest quality» in stem
cell biology and
cell regeneration.
Bloch's colleagues at the National Institute of Environmental Health Sciences tested the oils in
gene expression
studies on lab - grown human breast cancer
cells and found that they could mimic estrogens, the primary female sex hormones, and inhibit androgens, the primary male sex hormones.
After having conducted a large - scale
study performed on
cells from the umbilical cords of 204 newborns, the researchers from UNIGE demonstrate that DNA methylation may play both a passive and active role in
gene regulation.
To more accurately reflect the mechanisms driving oligodendrogliomas, the researchers used RNA sequencing to
study directly, on a single -
cell level,
gene expression in samples from six early - stage human tumors.
So far, researchers have mostly turned on
genes with CRISPRa in
cells growing in lab dishes, says Charles Gersbach, a biomedical engineer at Duke University not involved in the new
study.
In the
study, they found that miR - 182 suppressed Bcl2L12, a cancer
gene that blocks cancer
cell death in response to chemo - and radiation therapy.
While previous vectors have only been able to penetrate the cochlea's inner hair
cells, the first Nature Biotechnology
study showed that a new synthetic vector, Anc80, safely transferred
genes to the hard - to - reach outer hair
cells when introduced into the cochlea (see images).
«This
study shows that NF - kB might coordinate a network of immune - suppressor
genes whose products enable tumor
cells to evade adaptive immunity,» he adds.
Nadeau stumbled upon one
study, in mice, describing how environmental factors can tag Foxp3 with chemical markers that tell T -
cell precursors to switch the
gene on or off.
The result was the largest deletion ever observed in the dystrophin
gene using CRISPR / Cas9, and the
study was the first to create corrected human iPS
cells that could directly restore functional muscle tissue affected by Duchenne.
In the latest
study, the researchers hypothesize that the downregulation of these three
genes reprograms the
cells so that they return to an embryonic - like state, in which they have the potential to give rise to a number of different
cell types.
And by
studying mice lacking the
gene for ERRγ (and therefore unable to make the ERRy molecule), the team observed that all brown fat
cells resembled white
cells in these mice.
She still does not know why he considered her at the time — «Maybe it was just my enthusiasm,» she wonders — but he nonetheless became her mentor as she
studied the transcriptional activation of the
cell - cycle regulated HO
gene in the yeast Saccharomyces cerevisiae.
«Our stem
cell - based
studies indicate that low - calorie sweeteners promote additional fat accumulation within
cells compared with
cells not exposed to these substances, in a dose - dependent fashion — meaning that as the dose of sucralose is increased more
cells showed increased fat droplet accumulation,» said Sabyasachi Sen, M.D., Associate Professor of Medicine at George Washington University in Washington, D.C. «This most likely occurs by increasing glucose entry into
cells through increased activity of
genes called glucose transporters.»
This
study, published in the journal Microarrays, shows that lack of SOST in the bone microenvironment promotes the expression of many
genes associated with
cell migration and / or invasion, including long non-coding RNA MALAT1 in prostate cancer, suggesting that SOST has an inhibitory effect on prostate cancer invasion.
«We have identified the molecular mechanisms by which the Tat protein made by HIV interacts with the host
cell to activate or repress several hundred human
genes,» said Dr. Iván D'Orso, Assistant Professor of Microbiology at UT Southwestern and senior author of the
study.
Underscoring the relevance to humans, the researchers
studied nasal and bronchial
cells from people who suffer from asthma or chronic rhinosinusitis (nasal congestion / sniffles) due to dust - mite sensitivity, and found that on average these
cells had a markedly lower expression of the dectin - 1
gene.
By
studying infected
cells grown in a laboratory, the team found that a large number of CMV's
genes help it hide from the immune system by allowing it to destroy many of the proteins produced by the body during virus infection and preventing them from activating immune
cells to destroy the virus.
«In this current
study, we've shown that by opening the TRPV1 channel to allow calcium ions to enter the
cell, we can turn on a
gene.
In one such
study by Ronald Evans and colleagues, the
gene for rat growth hormone is stably inserted into mouse
cells by a retrovirus.
Nevertheless,» [the]
study is very important because it demonstrates for the first time that we can use
gene therapy to transform
cells in the brain into ones that will secrete GDNF,» says Jeffrey Kordower, a professor of neurological sciences at Rush Presbyterian Medical Center in Chicago.
The results of the
study were obtained by infecting laboratory - grown
cells with forms of the CMV virus which differed only by the removal of a single
gene.
Visel and his colleagues
studied gene expression in a developing mouse embryo, and found 120 enhancers active in
cells of the face.
A
study in this week's Neuron provides key evidence that DNA methylation — also known to occur as cancerous
cells divide, when tumor suppressor
genes are silenced — occurs in adult brains and can be triggered by environmental cues.
Previous
studies of genetic alterations in lymphoma and lung cancer have found that certain genetic mutations — specifically when part of a
gene breaks off and gets fused to another — can inappropriately switch on ALK, driving cancer
cells to grow and divide.
Among all the
genes that control endocytosis, the authors of the
study focused specifically on one, called RAB7; this
gene is highly expressed in melanoma
cells.
Co-senior author Professor Jennifer Nichols at the Wellcome Trust - Medical Research Council Stem
Cell Institute, said: «Our data allow us to
study gene activity in individual
cells to an unprecedented level of precision.
The researchers also anticipate that their
gene expression data and newly described islet -
cell isolation technique, coupled with the ongoing tissue procurement effort, will be helpful to others
studying pancreatic development and diabetes.
In those
cells the Esrp1 and Esrp2 proteins enforce epithelial - specific splicing isoforms for hundreds of different
genes, as Carstens and his team have shown in
studies since 2009.