To determine whether adipose tissue macrophages express any molecules implicated in obesity - associated complications, we isolated three
cell populations from the parametrial adipose tissue of three obese B6.V Lepob / ob mice: (a) an adipocyte - enriched population, (b) a stromal vascular macrophage F4 / 80 + population, and (c) an F4 / 80 — stromal vascular population.
Since HIV infection itself alters epigenetic processes in the immune system, the research team wondered whether a distinct DNA methylation profile, a major epigenetic modification where methyl groups are added to DNA, occurs in those with HIV associated - cognitive impairment and whether it exists in distinct immune
cell populations from the blood.
Developing therapeutic
cell populations from human ES cells will be far more demanding: cells will have to be stable, predictable, pure, have proven functionality, be nontumor - forming, and be «scalable» — capable of growing in very large numbers.
By varying the compositions of lipids, cues, and diffusible factors in the scaffolds, we engineered a very versatile and flexible platform that can be used to amplify specific T
cell populations from blood samples, and that could be deployed in existing therapies such as CAR - T cell therapies,» said Mooney, Ph.D., a Core Faculty member at the Wyss Institute and leader of its Immunomaterials Platform.
The second branch of the combination therapy, the low - dose metronomic chemotherapy, was similarly found to exert its therapeutic effect through a novel, hitherto unrecognized mechanism: The metronomic chemotherapy turned out to not primarily target the tumor cells, but to act on the recruitment of yet another tumor - promoting
cell population from the bone marrow.
To further clarify this notion, we examined the specificity of miR - 7 expression in CSCs and non-stem
cell population from MDA - MB231, 231BoM, and 231BrM.
Cell therapy, as envisaged by the teams of I - Stem, is primarily based on the identification of experimental protocols that can specifically guide differentiation of pluripotent cells to a cell fate, which presents a interest for the replacement of the defective
cell population from the patient (the striatal neurons for Huntington's disease, the cells of the retinal pigment epithelium for retinitis pigmentosa, keratinocytes for genodermatoses, etc.).
«Often, we want to generate a particular
cell population from stem cells for introduction into patients,» says co-senior author Young - sup Yoon, MD, PhD, professor of medicine (cardiology) and director of stem cell biology at Emory University School of Medicine.
The Fab fragment of mAb 5.91, pre-incubated with canine IgE, reduced the binding of canine IgE to the monocyte
cell population from 15 % to 5.6 %.
Results showed that the whole mAb 5.91 molecule reduced the amount of binding of canine IgE to the monocyte
cell population from 15 % to 7.7 %.
Not exact matches
And with 7billion on the planet (and growing), these «young people missing millions
from their generation» should be thankful that clusters of
cells can be medically removed, preventing unwanted births and (perhaps) even saving the human
population from growing to a point of unsustainability.
In the clearest possible case, the ANT - OAR
cell would differ
from a zygote on all of the parameters noted above: The ANT - OAR
cell would have a pattern of gene expression that is clearly distinct
from a zygote; it would generate a homogeneous
population of
cells rather than multiple
cell types; it would undergo simple cleavage divisions and not produce any multicellular structures.
I know it's popular to think of movies where Floyd is sharing his
cell with a hardened criminal and having to worry about being shanked, but it's much more likely that he spends a bunch of time away
from general
population, being kept safe and probably watching TV and reading his days away.
Sampling was conducted via a stratified dual frame probability sample of landline and
cell phone telephone numbers (both
from Survey Sampling International)
from within New York State weighted to reflect known
population patterns.
They're not the only ones, of course, since political organizers
from Manila to D.C. have found that
cell phones are profoundly political devices, particularly when they reach
populations that are otherwise effectively off the grid.
Sampling was conducted via a stratified dual frame probability sample provided by Survey Sampling International of landline and
cell phone telephone numbers
from within New York State weighted to reflect known
population patterns.
The government has been forced to introduce emergency measures to tackle a bursting jail
population, which includes using police
cells from today.
Scientists could build chips containing
cells from patients with specific genetic mutations, which could predict drug responses in specific
populations, as well as personalized chips that predict an individual's drug response.
However, the MIT team adapted it to randomly turn on or off distinct gene sets across large
populations of
cells, allowing the researchers to identify genes that protect
cells from a protein associated with Parkinson's disease.
From single -
celled organisms to human
populations, viruses affect all life on earth, often determining what will survive.
In the course of examining single unit responses
from the cortex of unrestrained and unanesthetized cats, we have come upon a
population of
cells that appears to be sensitive to auditory stimuli only if the cat «pays attention» to the sound source.
Through a variety of «high tech» approaches, including the isolation of monoclonal antibodies
from single B
cells and ultra-deep sequencing of shifting viral
populations over more than three years of infection, the researchers studied one woman who developed potent broadly neutralizing antibodies.
In order to thoroughly investigate cures for a diverse
population,
cell lines
from a large sampling of individuals are needed.
We don't need to use a cocktail of small molecules, growth factors or other supplements to create a
population of bone
cells from human pluripotent stem
cells like induced pluripotent stem
cells,» Varghese said.
He then evaluated the levels of specific microRNAs in
populations of highly metastatic, compared to poorly metastatic, cancer
cells taken
from the same patient.
Although some teams have managed to produce nearly pure colonies of certain kinds of neural
cells from ES
cells, no one has managed to concoct a recipe that will direct the
cells to become, say, a pure
population of dopamine - producing neurons that could replace those missing in Parkinson's disease.
Next, they used a technique called fluorescence - activated
cell sorting to separate out the newly differentiated retinal ganglion
cells from a mixture of different
cells into a highly purified
cell population for study.
Dr Ignacio Vazquez - Garcia, the first author
from the Wellcome Trust Sanger Institute and University of Cambridge, said: «We found that the degree of diversity within the
cell population — known as clonal heterogeneity — played a major role in the acquisition of antimicrobial resistance.
Professor Gianni Liti, a senior author on the paper
from the Institute for Research on Cancer and Ageing, Nice, said: «We were able to study the evolution in time by combining genome sequences of the
cell populations and tracking the growth characteristics of the yeast
cells.
Using only the DNA
from sloughed - off
cells floating in the ocean, scientists have been able to determine the
population size and genetic properties of one of the world's largest and most mysterious animals: the whale shark.
Now, researchers reporting February 25 in
Cell Reports describe an intermediate gut microbiome
from the Central African Republic's Bantu community, a traditional
population that incorporates some westernized lifestyle practices.
Trapnell and Suzuki were prompted to test the novel macrophage transplantation therapy by studies showing that resident macrophage
populations (such as those residing in the lung) can self - maintain without the
cells having to regenerate directly
from the bone marrow.
Using fluorescent markers, Fuchs and her colleagues isolated two distinct
populations of stem
cells from mouse skin.
«The recent discovery of tumor - promoting milieus, referred to as metastatic niches, that are established at distant sites prior to or upon the arrival of disseminated tumor
cells could explain cancer
cells that relapse early, but in late relapsing
populations, what tumor
cells do
from the time of dissemination to the time they become clinically detectable has been a big question.»
The research team with international collaborators analysed more than 100 patient samples
from ovarian and other cancer types to discover a distinct
population of
cells found in some tumours.
«By combining the genetic analysis of a small
population of immune
cells from healthy skin with functional experiments we were able to define two subgroups of memory immune
cell and in detail decipher / dissect how these
cells behave in healthy and inflamed skin,» explains Liv Eidsmo, researcher at Karolinska Institutet's Department of Medicine.
Moreover, the stressed mice's gray hairs and the
cell populations in their follicles were indistinguishable
from those of elderly mice, suggesting that genotoxic stress might drive natural graying as well.
National Institutes of Health researchers studying zebrafish have determined that a
population of
cells that protect the brain against diseases and harmful substances are not immune
cells, as had previously been thought, but instead likely arise
from the lining of the circulatory system.
In the cases, just this last couple of elections, where stem
cell politics, for example, has been played out in the electoral process, stem
cell research is [has] done better than the winning candidates for offices; and I think, apart
from that, I think that we do have a serious problem in general education of the sciences and that accounts for the reluctance of a large segment of the
population to accept the principles of evolution and think that there is still a debate about it, which there isn't — and that's a problem we need to solve, — but I still think there is an incredible constituency for science in this country.
Therefore, adult stem
cells become exhausted in aged individuals due to telomere length shortening that results in increased healing times and organ tissue degradation
from inadequate
cell populations.
Dr Saraswat explained that the impact of endometriosis — a relatively common condition in which
cells from the lining of the uterus (endometrium) are found elsewhere in the pelvic area — is relatively unknown in pregnancy in general
populations of women, with most studies performed in infertile women having assisted reproduction.
For that, they quantified how 85 nanoparticles delivered DNA barcodes to eight
cell populations in the spleen, and found that
cell types derived
from myeloid progenitors tended to be targeted by similar nanoparticles.
Conservation work to defeat the disease has including removing infected individuals
from the
population and new research in Evolutionary Applications explains how this gives us a unique opportunity to understand how human selection alters the evolution of cancerous
cells.
DFTD is an asexually reproducing clonal
cell line, which during the last 16 years has been exposed to negative effects as infected devils, approximately 33 % of the
population, have been removed
from one site, the Forestier Peninsula, in Tasmania between 2006 and 2010.
«When we got those results everybody was really excited about it, because pulling out epigenetic changes
from a
cell population during an infection in vivo is really pretty remarkable,» Tarrio said.
Therefore, researchers
from the CNIO's Experimental Oncology Group have focused their work on identifying a stromal
cell population that fosters tumour growth, to later discover why they have this capacity and reverse it.
On the other hand, if the same mutation occurs in a different
cell population located farther away
from the SVZ, it will give rise to other subtypes,» said Chen.
Lepidoptera genetics is notorious for the fact that chromosome counts can vary between
populations of the same species and occasionally even within
cells from the same individual, he explains.
The team also demonstrated the utility of the platform by applying it to examine a growth - modulating feedback circuit whose dynamics is qualitatively altered by circuit - host couplings and revealing the behaviors of a toggle switch across scales
from single -
cell dynamics to
population structure and to spatial ecology.
With the results
from both Korea and the UK the presence of both diet and microbe - induced
populations of pTreg
cells may be required for the development of complete tolerance to food antigens.