Brian Strahl, PhD, professor of biochemistry and biophysics, received an Outstanding Investigator Award from the National Institutes of Health to broaden our understanding of the various and complicated
roles of gene expression and chromatin.
Not exact matches
Because epigenetics is the real driver
of your health status, and diet plays a major
role in
gene expression (aka epigenetics), at least in this post's animal study!
The recent Lancet Breastfeeding Series refers to new discoveries being made about breastmilk — such as its
role in
gene expression — so it can be expected that Nestle will use the strategy
of launching «new improved» formulas that are «closer to breastmilk» for decades to come (Nestle is currently investing heavily in epigentics research).
Following this in 2015, an article (Alsaweed et al.) described over 300 novel milk microRNA molecules, components that are known to play a key
role in the regulation
of gene expression.
A new meta - analysis suggests that low
expression levels
of 10 related
gene sets responsible for mitochondrial machinery play an important
role in this disorder — all previously unlinked to Parkinson's.
Most
of the commonly occurring cancers, notably breast, prostate, and lung cancer, spread (metastasize) to bone; I was set to the task
of studying the
role of a transcription factor (
gene -
expression regulator), NF B (nuclear factor kappa B), in cancer metastasis.
This system plays a major
role in the regulation
of gene activity, and enables the selective
expression of different functions in differentiated cell types.
It, therefore, offers a new way to study the
role of the environment on the
expression of our
genes.
Their study, in the journal Oncotarget, is the most extensive analysis to date
of gene expression's
role in ccRCC tumor growth and metastasis.
This research tool can be used to better understand the function
of histone proteins, which play critical
roles in the regulation
of gene expression in animals and plants.
The theory holds that histone proteins, which combine with DNA to form chromosomes, are more intimately involved in
gene expression than their general
role of facilitating or hindering
gene activation suggests.
Histones and other proteins, when modified by this process known as acetylation, play critical
roles in regulation
of gene expression, typically resulting in increased
gene expression.
Beyond their participation in host defense, increasing evidence suggests that these modifications also play important
roles in the regulation
of gene expression, virulence and antibiotic resistance.
The researchers also found differences in microRNA
expression in bipolar cells — tiny fragments
of RNA that play key
roles in the «reading»
of genes.
Booij and her colleagues hope that this study will shed more light on the specific
role of early environmental influences on brain development,
gene expression and emotional regulation.
Animal studies have suggested that overactivation
of TLR7 plays a
role in lupus, and a
gene variant that increases
expression of the receptor has been associated with increased lupus risk in human patients.
The study also raises questions about the
role of histone acetylation in regulating
gene expression.
Douglas Thomas, associate professor
of medicinal chemistry and pharmacognosy at UIC, and co-workers discovered that nitric oxide plays an important
role in epigenetics — heritable alterations in
gene expression caused by mechanisms other than changes in DNA sequence.
«Because many broadly expressed
genes that play key
roles in essential cellular functions are under the control
of cell - specific enhancers, the ability to affect enhancer function by knocking down eRNAs could potentially provide a new strategy for altering
gene expression in vivo in a cell - specific manner,» said Glass, noting that in his research, anti-sense oligonucleotides were developed in conjunction with Isis Pharmaceuticals, which suppressed enhancer activity and reduced
expression in nearby
genes.
Other grants will fund work on tomatoes, soybeans, a mustard called Arabidopsis, and cotton, as well as research on the
role of stress in
gene expression.
«We identified, across the genome, that enhancer RNAs were the most common type
of RNA that bound to CBP, and that by making this interaction, eRNAs play a crucial
role in regulating CBP activity and
gene expression.»
The Lazar lab has been working on HDAC3 for over a decade, focusing on the pivotal
role of this enzyme in hormone - mediated regulation
of gene expression and metabolism.
When the keratinocytes treated with all six cytokines expressed significantly more
genes than one
of the lacking combinations, it meant that the lacking cytokine was playing an influential
role for the
expression of those
genes.
In a paper published recently in the Journal
of Clinical Investigation, lead authors at the University
of Georgia, along with colleagues from the Rensselaer and the University
of California at San Diego, demonstrated for the first time that the
gene NDST1 plays a significant
role in the proper development
of the diaphragm, and that abnormal
expression of the
gene could lead to CDH.
Understanding the best ways to work with RNA and the various RNA detection methods can help scientists advance our understanding
of gene expression patterns and elucidate the
roles of different genomic elements in cellular function and dysfunction.
Believing that science and medicine are inextricably linked, he decided to do a PhD at the MRC Mill Hill laboratories and investigated the
role of regulatory elements in controlling
gene expression, graduating in 1996.
Plants perform these regulations mainly by regulating nuclear
gene expression and multiple intracellular signaling pathways have been shown to play a
role in the genomic response
of plants to stress, but the processes are not well understood.
Based on
gene expression studies
of fat tissue conducted at the USDA HNRCA, the Tufts University researchers initiated studies
of the
role of FAT10 in adipose tissue and metabolism.
In addition, treatment with Korean red ginseng extract suppressed the
expression of RSV - induced inflammatory
genes and the formation
of chemically reactive molecules containing oxygen, which play a
role in virus - induced epithelial damage in RSV.
The team also recently obtained a grant from the National Medical Research Council in Singapore to pursue a study using the probe to examine the relationship between key Parkinson's disease - linked
genes and MAO - B
expression and activity to further understand the causes
of the disease and illuminate the
role of MAO - B in this.
To get a better idea
of the
gene's
role in development the researchers blocked the
expression of the
gene in zebrafish.
«Our results support that
gene expression responses
of PGC - 1α isoforms may have an important
role in exercise - induced muscle adaptations,» the researchers stated.
The goal
of the NIH program, as described on its website, is «to understand the principles behind the three - dimensional organization
of the nucleus in space and time (the fourth dimension), the
role nuclear organization plays in
gene expression and cellular function, and how changes in the nuclear organization affect normal development as well as various diseases.»
This under -
expression was particularly interesting because although hundreds
of genes have already been identified for their presumed
roles in autistic disorders, each one alone can at best only explain 1 %
of cases.
What's really impressive about Babar's accomplishment is that he did the work for both papers — one on the
role of a population
of stem cells in lung cancer development (published in Cell) the other on
gene expression in group A Streptococcus (published in PNAS)-- as a participant in summer undergraduate research programs.
But DNA and RNA both appear in an index at the back, and this refers you to the main entry on «
Gene», which explains the true role both of DNA and RNA in the context of gene express
Gene», which explains the true
role both
of DNA and RNA in the context
of gene express
gene expression.
Single - stranded, noncoding micro-ribonucleic acids (microRNAs), consisting
of 18 - 23 nucleotides, play a key
role in regulating
gene expression.
A study
of gene expression in leukemia cells has identified an RNA binding protein that plays an important
role in driving the development
of cancer.
Among the other
genes she says play a
role in thoroughbred performance are peroxisome proliferator - activated receptor - γ coactivator - 1 alpha (PGC - 1α), which is involved in skeletal muscle adaptation to exercise; pyruvate dehydrogenase kinase, isozyme 4 (PDK4), involved in glucose regulation,
expression of which increased almost fourfold after sprints; and cytochrome c oxidase subunit 4 isoform 2 (COX 4I2), involved in respiration.
Although we have long known that this signal strongly inhibits protein synthesis in general, during hemoglobin
gene expression it first plays its indispensable, positive
role before being turned off promptly to allow for massive hemoglobin formation needed for breathing,» said Prof. Raymond Kaempfer, the Dr. Philip M. Marcus Professor
of Molecular Biology and Cancer Research at the Hebrew University
of Jerusalem.
Previous studies have shown a physiologic
role for vitamin D in liver function, but «it was our discovery
of high levels
of vitamin D receptor (VDR) in the stellate cell that led us to consider it as a possible off switch for liver fibrosis,» says lead author Ning Ding, a research associate in the
Gene Expression Laboratory.
In a non-disease state, TDP - 43 is an important protein involved in various aspects
of the metabolism
of RNA, a molecule essential in various biological
roles in the regulation and
expression of genes.
Amongst others, Dr. Sonntag's work has contributed to developing a cell therapy for Parkinson's disease (PD), and to understanding a
role of dysregulated
gene and miRNA
expression networks in PD and schizophrenia, or dopaminergic and adrenergic receptors in hedonic and impulsive behavior.
Insight into the novel
role that NMDA receptors play in retinal responses to hypoxia may be derived from study
of the coordinated
expression patterns
of genes that interact, either directly or indirectly, with the NMDA receptor; namely, the NMDA interactome.
So, the inevitable next question was, are the connectivity and
gene expression differences
of the cells associated with their
roles in processing local and global cues?
Thus, interactome hubs such as NR1 may exhibit low levels
of change in individual
gene expression following hypoxia, but, based on analysis
of interaction networks, are likely to play an important
role in regulating the biologic response.
Long - lasting changes in brain connectivity require new
gene expression, and Dr. Martin has discovered a
role for specific signaling molecules that travel from stimulated synapses to the nucleus to change the transcription
of DNA to RNA.
Greenberg, an investigator in the Clinical Research Division, and colleagues conducted a pair
of experiments by manipulating
gene expression directly in the epithelial compartment
of the mouse prostate gland to better understand the
role of IGF - 1R.
Current projects are investigating: 1) the
expression of inflammatory
genes during ischemia and reperfusion
of kidneys during urology transplantation and in mouse models; 2) the
expression of inflammatory
genes and proteins in urine as markers indicating the presence
of rejection in renal allografts; and 3) the
role of adhesion molecules and chemokines in directing leukocyte infiltration into organ allografts.
He studies how structural changes to chromosomes impact
gene expression and cell fate with a focus telomere, telomerase, and chromosomal stability, epigenetic proteins, and the
role of the SOSS complex in DNA damage repair.