The Regulatory T -
cell Transcription Factor Foxp3 Protects against Crescentic Glomerulonephritis.
The T
cell transcription factor NFATp is a substrate for calcineurin and interacts with the DNA - binding domains of Fos and Jun..
In this study, the researchers found that conditional deletion of Sox2 — the gene encoding the SOX2 stem
cell transcription factor — and the associated dampening of astrocyte reactivity appear to promote functional recovery, including behavioral recovery, after traumatic brain injury, said Dr. Zhang, a W.W. Caruth, Jr..
The stem
cell transcription factor SOX2, which is critical for stem cells, cell reprogramming, and brain development, also is activated in astrocytes in the adult brain.
«We wanted to understand how stem
cell transcription factors were interconnected and explain how these cells behave in different culture conditions and still maintain the stem cell state,» said Smith.
Not exact matches
Combating inflammation According to the JNCI, Capsaicin blocks the activation of nuclear
transcription factors in the
cells» nuclei that, when activated by exogenous or endogenous free radicals or toxins, cause inflammation throughout the stomach and body.
The Weill Cornell researchers» process was more direct: Four
transcription factors prompted adult mouse endothelial
cells, which line the inside of blood vessels, to turn into HSCs.
The Cincinnati Children's team suspects that the EBNA2
transcription factor from EBV is helping change how infected B
cells operate, and how the body responds to those infected
cells.
«But in this case, when this virus infects
cells, the virus makes its own
transcription factors, and those sit on the human genome at lupus risk variants (and at the variants for other diseases) and that's what we suspect is increasing risk for the disease.»
Adding seven
transcription factors — proteins that switch on genes — the team then converted the IPSCs into immature HSC - like
cells.
The ATF6 protein is a
transcription factor, meaning it helps turn other genes «off» or «on,» depending on what's needed by the
cell.
Boldrini says that future research on the aging brain will continue to explore how neural
cell proliferation, maturation, and survival are regulated by hormones,
transcription factors, and other inter-cellular pathways.
They took a naturally occurring mitochondrial
transcription factor called TFAM, which initiates protein synthesis, and engineered it to cross into
cells from the bloodstream and target the mitochondria.
Drosha degrades the messenger RNA for NFIB in the adult hippocampal stem
cells and prevents the expression of this
transcription factor which is necessary for the differentiation of oligodendrocytes and thus blocks their development and therefore biases differentiation towards neurons.
M. J. Bertram et al., Identification of a gene that reverses the immortal phenotype of a subset of
cells and is a member of a novel family of
transcription factor - like genes.
While the process usually proceeds in a one - way direction, artificially inducing the activity of key
transcription factors can reprogram differentiated
cells back into a stem - like state, a discovery honored with the 2012 Nobel prize.
The activity of four
transcription factors — proteins that regulate the expression of other genes — appears to distinguish the small proportion of glioblastoma
cells responsible for the aggressiveness and treatment resistance of the deadly brain tumor.
In the journal
Cell Reports, published today online, the scientists describe how the powerful master regulatory
transcription factor Bcl6 regulates the genome, ensuring that aggressive lymphomas survive and thrive.
In a series of experiments, the researchers first identified a set of 19
transcription factors that were expressed at significantly greater levels in cultured human glioblastoma stem
cells capable of tumor propagation than in differentiated tumor
cells.
«
Transcription factors distinguishing glioblastoma stem
cells identified.»
Transcription factors are responsible for either inhibiting or promoting the expression of genes, and master regulatory transcription factors are like transcription factors on steroids: their actions regulate thousands of genes in different ki
Transcription factors are responsible for either inhibiting or promoting the expression of genes, and master regulatory
transcription factors are like transcription factors on steroids: their actions regulate thousands of genes in different ki
transcription factors are like
transcription factors on steroids: their actions regulate thousands of genes in different ki
transcription factors on steroids: their actions regulate thousands of genes in different kinds of
cells.
The study team removed fibroblasts (skin
cells) from DBA patients, and in
cell cultures, using proteins called
transcription factors, reprogrammed the
cells into iPSCs.
In a paper publishing August 7th in the Open Access journal PLOS Biology, researchers at the Max Planck Institute of Molecular
Cell Biology and Genetics (MPI - CBG) succeeded in mimicking the sustained expression of the
transcription factor Pax6 as seen in the developing human brain, in mouse cortical progenitor
cells.
Their work elucidates a dynamic, two - step mechanism in females whereby B
cells lacking the markers of X chromosome inactivation regain these modifications during B
cell activation, in a process involving the
transcription factor YY1.
SIX3 and a related gene, SIX2, with a similar pattern of expression in human beta
cells, encode proteins known as
transcription factors that control the expression of many other genes in the
cell.
Once inside the myofibroblasts, the virus downloads the
transcription factors, which transform the
cells into hepatocytes.
Although
transcription factors are often the ingredients scientists use to induce stem
cell fate, Dalby and Ulijn hypothesize that certain metabolites «fuel» the pathways that result in variable concentrations of
transcription factors that drive these changes.
Berninger and others have previously shown that Sox2, Ascl1, and other
transcription factors — proteins that bind to specific DNA sequences to control the activity of genes — can induce the nonneuronal «support
cells» known as glia to turn into neurons.
The limitation of ChIP - seq is that it can not deliver a conclusive picture of
transcription factor binding in a single
cell because it samples events in a population after the
cells have been exposed to various toxic chemicals.
Disease processes often begin with mutations in the
transcription factor, or in the DNA they bind to inside the nucleus of
cells to regulate the complex interplay of genes needed for a healthy functioning body.
To understand defective disease process, investigators need to track where and how
transcription factors bind to DNA to identify the differences between healthy and diseased
cells.
Eventually, she says, it might be possible to use our increased understanding of RFX
transcription factor to treat hearing loss, by either protecting hair
cells from death or fostering their growth.
DNA binding proteins called
transcription factors are required for maintaining
cell identity.
Each
cell type can be distinguished based on its
transcription factors, and a
cell can in certain cases be directly converted from one type to another, simply by changing the expression of one or more
transcription factors.
«Absence of a
transcription factor halts tooth development in mid-stride: Without the
transcription factor Sp7, two specialized types of
cells that create dentin and enamel fail to mature.»
However, each time a
cell divides the specific binding pattern of the
transcription factors is erased and has to be restored in both mother and daughter
cells.
The research group has produced the most complete map yet of
transcription factors in a
cell.
«The problem is that there is so much DNA in a
cell that it would be impossible for the
transcription factors to find their way back within a reasonable time frame.
The current study identified a new role for a particular group of proteins, known as RFX
transcription factors, in the development and survival of the hair
cells.
First author Adam Skibinski, M.D. / Ph.D., student at Tufts University School of Medicine and the Sackler School of Graduate Biomedical Sciences at Tufts University, said «We've known for a long time that breast
cells can lose their normal identity when they become cancerous, but we are now realizing that normal
cells can change their characteristics as well in response to
transcription factors like TAZ.
The scientists then moved on to study mice which had been genetically altered so that their hair
cells lacked two of the RFX
transcription factors.
A neuro - oncology research team at Dartmouth's Norris Cotton Cancer Center, led by the Director Mark A. Israel, MD with first author Gilbert J. Rahme, PhD, recently identified the
transcription factor Id4 as a suppressor of tumor
cell invasion in glioblastoma.
Abnormal and uncontrolled production of this class of proteins, known as
transcription factors, allow for
cells to bypass growth control mechanisms and to develop characteristics necessary for invading surrounding tissues.
If an engineered organism mates with a wild counterpart, the
transcription factors render the offspring unable to survive by activating genes that cause their
cells to die.
In this case, it was not by using a special formula of
transcription factors, but by inducing damage to tell the body to repair itself and that it needs new
cells of a certain type to do that.
The activation dynamics of the
transcription factor NF - κB exhibit damped oscillatory behavior when
cells are stimulated by tumor necrosis
factor — α (TNFα) but stable behavior when stimulated by lipopolysaccharide (LPS).
Glk1 is a
transcription factor, meaning it binds to specific regions of DNA and activates genes involved in
cell death and other plant immune responses.
An international consortium under the leadership of Prof. Dr. Thomas Laux, a biologist from the University of Freiburg, has identified the
transcription factor WUSCHEL HOMEOBOX (WOX) 5 as the signal molecule, showing that it moves through pores from the
cells inside the quiescent centre into the stem
cells.
The study, which can be read in Nature Communications, shows the
transcription factor family MYB3R prevents progression to the division stage (M phase) of the
cell cycle in Arabidopsis, a small flowering plant that is a member of the mustard family.
Thus, this cDNA derives from a gene (oct - 2) that specifies an octamer binding protein expressed preferentially in B lymphocytes, proving that, for at least one gene, a
cell - specific
transcription factor exists and its amount is controlled through messenger RNA availability.