Whole genome sequence data of the mutants
with altered cell shape, directed mutants, wild type stocks and isolated helical and rod - shaped «wild type» C. jejuni, identified a number of different mutations in pgp1 and pgp2, which result in a change in helical to rod bacterial cell shape.
Pseudotyping is the process of producing viruses with foreign envelope proteins and is frequently used to generate viruses
with altered cell tropism [Cronin et al., 2006].
Not exact matches
Research on a new «gene editing» technology known as CRISPR — which theoretically allows any
cell or organism to have its genome
altered — is advancing exponentially,
with early research ongoing on human embryos created for that purpose.
OAR proponents claim that when the
altered donor -
cell nucleus
with its activated nanog gene is transferred to the enucleated oocyte (egg
cell), the presence of nanog will immediately convert the enucleated egg
cell to a pluripotent
cell, without ever forming a zygote.
God started
with a small party in a garden, moved on toward some pow - wows at
alters in the desert, then moved into a moveable tabernacle (kind of like an Old Testament RV), then reigned in a temple (especially the God - cave of the Holy of Holies, then disappeared while giving the Jews the silent treatment for some 400 years, then came back to the temple, then traveled the highways and byways
with anyone who wanted to join the fun and whooped it up
with society's outcasts and wedding attenders, then moved on to some public forums, then into some clandestine home groups and a few jail
cells, and eventually made his way into traditional church as we now know it.
Carcinogens may cause cancer by
altering cellular metabolism or damaging DNA directly in
cells, which interferes
with normal biological processes.
Not only did treatment
with the AA147 compound activate ATF6 in stem
cells, it
altered the
cells» differentiation path.
Baby Layla's medical team treated her
with immune
cells altered by one type of the molecular surgical instruments called TALENs.
These differences can affect the biological identity of nanoparticles and thus
alter their interaction
with the
cells.
Vamsi Mootha, a mitochondrial biologist at Massachusetts General Hospital, his graduate student Isha Jain, and their colleagues used a popular DNA - editing tool called CRISPR to knock out about 18,000 different genes in human
cells that were
altered to have the same problems as people
with mitochondrial diseases.
It was unlikely that all 24 genes would be
altered simultaneously in any one bacterium, so the cycle was repeated over and over to increase the proportion of
cells with mutations in all 24 genes.
To understand that process, the Florida State group engineered a fruit fly to produce a mix of
cells, some
with normal Lgl and some
with the
altered version.
He reports that Advanced
Cell Technology plans to clone genetically
altered animals whose neural tissue would be immunologically compatible
with that of humans.
With materials and instructions from the kit, I will introduce CRISPR into the bacteria
cells, and use it to rewrite a tiny part of their DNA, creating genetically
altered cells that happily thrive on streptomycin.
Chinese scientists have injected a person
with CRISPR / Cas9 - edited
cells, marking the first time
cells altered with the technique have been used in humans.
Some may stem directly from how the
altered digestive system works — secreting different levels of hormones, for example — or changes in nerve
cells that communicate
with the gut.
In that case, six patients suspended antiretroviral therapy for 12 weeks after infusion
with zinc finger nuclease —
altered CD4
cells.
Experimenting
with human
cells and mice, Johns Hopkins researchers have found that a genetic mutation that
alters a protein called NOD1 may increase susceptibility to human cytomegalovirus (CMV) infection.
Changes to the properties of the lipid bilayer component of the
cell membrane can
alter the function of proteins embedded in the membrane — proteins that regulate critical functions such as transport of materials in and out of the
cell and communication
with other
cells.
When implanted into mice, the pool of
altered cells maintained their gene edits long - term,
with no signs of side effects.
They knew that they had found a new type of genetic defect, because the DNA in cancer
cells from people
with the
altered gene was riddled
with mutations.
With the help of optogenetics, the research group was able to deactivate specific genetically
altered brain
cells using light.
«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.
They systematically deleted genes for secreted effector proteins — molecules that the parasite injects into a host
cell to modulate the immune system during infection — and injected the
altered parasites into mice
with aggressive ovarian cancer.
Human red blood
cells are usually disc - shaped
with a central dimple but conditions such as sickle -
cell anaemia
alter their shape.
Prior research
with cultured tissue had shown that a mix of chemicals could change bone marrow stem
cells from mice to those resembling brain
cells, but when a team led by neurologist Lorraine Iacovitti of Thomas Jefferson University in Philadelphia tried the same brew on human
cells, the number
altered was modest.
The team found that individuals
with long - standing type 1 diabetes and diabetic enteropathy have
altered colonic stem
cells (CoSCs) and increased blood levels of a regulatory protein called insulin - like growth factor binding protein 3 (IGFBP3), which is produced in the liver.
Certainly, miRNA levels do not remain
altered in the brain
cells of mice injected
with sperm miRNAs as zygotes.
With a better «nose» for these chemicals, the
altered T
cells make a beeline for the outer layer of the skin, where they began destroying defective and infected
cells, the team reports in the February issue of Nature Immunology.
Now, scientists have discovered a key component of this ancient navigational system in rats: a group of neurons called «speed
cells» that
alter their firing rates
with the pace at which the rodents run.
After exploiting a technology that allowed them to activate each of nearly 16,000 genes individually in human melanoma
cell lines containing mutant BRAF, the authors then treated the panel of
cells with the drugs and monitored which
cells showed
altered drug sensitivity.
When McKnight was research director at Tularik, which is targeting cancer and other diseases
with drugs that
alter the
cell's production of specific proteins, he spent 30 % to 40 % of his time scraping together dollars.
Its presence influences the behaviour of nanoparticles in the body by
altering their chemical properties, destination, and their interactions
with other
cells.
Researchers suspect the dyes were hydrophobic and
altered how the ganglioside interacted
with the
cell membrane.
«But now we need to find the sweet spot, the Goldilocks spot, where we can
alter enough stem
cells to allow someone to live
with HIV.
The researchers analysed
cells from healthy individuals and others
with type 2 diabetes and found 25 820 regions of the genome
with altered DNA methylation.
Here, six patients suspended combination antiretroviral therapy for 12 weeks after infusion
with altered CD4
cells, so scientists could monitor viral load and the power of the
altered immune
cells to survive and thrive in the presence of active HIV.
Sure enough, plants
with mutant versions of these DNA - binding proteins produced root
cells with altered levels of Short - root.
The
cells will be genetically
altered to equip them
with a correct copy of the defective gene.
Their answer, garnered through a series of electrophysiology, dendritic spine density and immunohistochemistry experiments
with mice that were genetically
altered to produce either more new neurons or kill off newborn neurons, supports the second model — some of the cortical neurons transfer their connections from mature granule
cells to the new granule
cells.
In agreement
with predictions from these models, we show that minimal changes in the shape of the environment in which rats are exploring can substantially
alter correlated activity patterns among place - modulated granule
cells in the dentate gyrus.
But embryonic clones, the source of an endless supply of stem
cells imprinted
with one's personal DNA, could
alter the equation in favor of the patient and augur a paradigm shift in medicine on par
with the changes brought about by antibiotics and vaccines.
In combination
with a separate technique that measures the degree to which a gene is expressed, the researchers then identified genes that were either mutated or functionally
altered through expression levels in these bladder cancer
cell lines.
With the aid of centrifuges, Cristoforetti
altered the gravitational conditions on the ISS, which enabled the team in the control center to track how the
cells reacted.
In the scientific article «Histone mutations separate R loops from genome instability induction» published in Molecular
Cell, the researchers state that RNA joins
with DNA by chance or because of a disease, the structure of the chromatin, the protein envelope of the chromosomes is
altered, causing breaks in the DNA.
By
altering the activity of mitochondria — the powerhouses that provide
cells with energy — it forces the body to burn fat.
When using a well established model of colorectal cancer, the researchers observed that dietary emulsifier consumption was sufficient to make the animals more susceptible to developing colonic tumors because this created and maintained a pro-inflammatory environment associated
with an
altered proliferation / apoptosis (
cell death) balance.
But a few weeks later, the virus began to decline, and it dropped to undetectable levels in concert
with evidence that the gene therapy had
altered his T
cells.
And work in fruit flies indicates that they can subtly
alter their immune
cells to deal
with different types of microbes (ScienceNOW, 18 August 2005).
Then the team implanted these
altered cells in mice
with a form of diabetes to check that they secrete insulin in a way that controls blood sugar levels.