He has demonstrated, for example, that exerting a mechanical force on a cell can
activate cell signaling.
A metabolic pathway that is up - regulated in certain breast cancers promotes the disease's progression by
activating a cell signaling protein called Arf6, according to a paper published in the Journal of Cell Biology.
Not exact matches
She says, «Our new findings show that in the absence of embryonic movement the
cells that should form articular cartilage receive incorrect molecular
signals, where one type of
signal is lost while another inappropriate
signal is
activated in its place.
«Our new findings show that in the absence of embryonic movement the
cells that should form articular cartilage receive incorrect molecular
signals, where one type of
signal is lost while another inappropriate
signal is
activated in its place,» Paula Murphy, a professor of zoology at Trinity College Dublin who co-led the study, says.
Introducing human prostate cancer
cell lines into mice, Wu and his colleagues saw a particular enzyme called MAOA
activate a cascade of
signals that made it easier for tumor
cells to invade and grow in bone.
Joe W. Ramos, PhD, deputy director of the UH Cancer Center and collaborators focused on investigating how these oncogenes and related
signals lead to dysregulation of normal processes within the
cell and
activate highly mobile and invasive cancer
cell behavior.
This
activates PD - 1 to send a
signal that puts the T
cell to sleep, making it oblivious to cancer.
Now, in a study published February 13 in Science
Signaling, Lin's team discovered that a chemical compound that
activates ATF6 also converts patient - derived stem
cells into blood vessels.
They show that turning on this
signaling hub
activates the movement of the cancer
cells.
This gives just enough time for light
signals from the baseball to hit the batter's eye, work through the circuitry of the retina,
activate successions of
cells along the loopy superhighways of the visual system at the back of the head, cross vast territories to the motor areas, and modify the contraction of the muscles swinging the bat.
Together, these
signals activate ADAR1, which edits specific RNA in a way that stabilizes a gene that can make cancer stem
cells more aggressive.
Chinnaiyan and colleagues then conducted studies using cancer
cells and found that the different FGFR fusion proteins all seemed to drive cancer
cell proliferation by
activating FGFR
signaling.
Thus,
signals coming from a given neuron provide information about odors that
activate the specific receptor protein expressed by that
cell.
By analyzing chemical changes of the IRS - 2 protein in immortalized cultures of human white blood
cells, it determined that IRS - 2 appeared in two different forms — «on,» which allows the
signal to pass through, and «off,» which stops the
signal from
activating the
cells into M2 macrophages.
The new research, reported Nov. 25 in the Journal of Biological Chemistry, investigated the role of two proteins, GRB10 and p70S6K, in the control of the
signaling pathway that
activates M2
cells.
«Now that we know the
cell of origin for Barrett's esophagus, the next step is to develop therapies that target these
cells or the
signaling pathways that are
activated by acid reflux,» said Dr. Que.
GLP - 1 receptors are also found in the brain, and prior research has shown that
activating them can boost the function of dopamine connections, act as an anti-inflammatory, improve energy production, and switch on
cell survival
signals.
In mice with pancreatic tumors, Kalbasi and other members of the team found relatively high levels of inflammatory compounds including CCL2, the
signaling molecule that
activates CCR2 on monocytes and macrophages to make these
cells migrate to tumors.
In the new study, Bohn's group used
cell signaling assays on a library of µ - receptor -
activating compounds to find a few with hints of a bias toward G - protein
signaling.
Multiple sclerosis (MS) is caused by immune
cells that
activate a cascade of chemicals in the brain, attacking and degrading the insulation that keeps neuronal
signals moving.
A specific genetic marker influences response to therapy in the early stages of RA; a link thought to be due to the gene
activating a
cell -
signalling protein involved in the inflammatory disease process.
In mammals, proteins called ion channels embedded in the
cell membrane translate temperature information into electrical
signals that
activate nerve
cells.
Consistent with previous findings, Apc suppression in the animals
activated the Wnt
signaling pathway, which is known to control
cell proliferation, migration, and survival.
Half of all melanomas harbor an
activating mutation in the BRAF gene that turns on the cancer
signaling pathway in
cells known as the MAP kinase pathway.
Thanks to this transmission route, human and animal
cells respond to external
signals and specifically
activate selected genes in the
cell nucleus.
When
activated by inflammatory markers in the gut, it sends a
signal to the brain, where immune
cells produce proteins such as IL - 6, leading to increased metabolism (and hence decreased levels) of the «happiness hormone» serotonin in the brain.
Then there's the West Palm Beach symposium, held to recruit participants for a study testing what happens when aging people get infusions of plasma (the fluid part of blood packed with
signaling proteins and other molecules but no red or white
cells) from young people who've taken a drug meant to
activate their immune system.
A
cell signal pathway with constitutive activity requires no binding partner (ligand) to
activate; instead, the
signaling circuit continually
activates itself.
Researchers at Boston University School of Medicine (BUSM), under the direction of Sam Thiagalingam, PhD, found that a protein secreted by BLBC
cells, called periostin (POSTN), acted to nurture and support cancer stem
cells by
activating a distinct
signaling pathway in these
cells.
They then showed that removing Tregs from the skin significantly reduced Notch
signaling in follicle stem
cells, and that replacing Tregs with microscopic beads covered in Jag1 protein restored Notch
signaling in the stem
cells and successfully
activated follicle regeneration.
When the CD4 on the CAR molecule binds to HIV, other regions of the CAR molecule
signal the
cell to become
activated and kill the HIV infected
cell.
Cytokines play important roles in
cell signaling and the researchers were able to replicate the mechanisms that instruct the microglia to
activate an anti-inflammatory response.
They focused on ItpkB because it is produced in HSCs, and the Sauer lab and others had previously shown that ItpkB controls a major
signaling pathway in other
cells that had been implicated in
activating HSC.
Without it, NFAT initiates a negative regulatory program that
activates genes encoding inhibitory
cell surfaces markers and blunts
signals received by the T
cell receptor.
The enhancement of minis appears to provoke the postsynaptic neuron to release a
signaling factor, still unidentified, that goes back to the presynaptic
cell and
activates an enzyme called PKA.
Dr. Gabriel Ferguson, a postdoctoral fellow in the lab of Dr. Martinez - Agosto and first author of the study, built upon the lab's previous research that utilized the blood system of the fruit fly species Drosophila, showing that a specific set of
signals must be received by progenitor
cells to
activate their differentiation into
cells that can work to fight infection after injury.
Neurons in the dentate gyrus
activated shortly after the neocortex's
signals were sent as if an echo,
cells in the CA3 region «echoed» weakly and neurons in the CA1 actually became calmer when the neocortex fired.
The impulses cause glutamate (one of the brain's main neurotransmitters) to pop out of one nerve
cell and travel across the synapse to
activate the next by binding to its receptors, chemically active
signaling stations on the
cell surface.
By functionally linking the
signal transduction of melanopsin to the control circuit of the nuclear factor of
activated T
cells, we have designed a synthetic
signaling cascade enabling light - inducible transgene expression in different
cell lines grown in culture or bioreactors or implanted into mice.
Protein interactions between niche glial
cells and the stem
cells activate the Hippo
signaling pathway in the stem
cells to repress growth and
cell division.
When the level of dopamine drops, nerve
cells that constitute part of the brain's «stop
signal» are
activated.
FosB is a transcription factor in the brain which, together with other molecules, is involved in so - called
signal transduction (transmission of stimuli to the
cells), that is to say conveys genetic information between the
cells and also determines whether certain genes are
activated or not.
Meanwhile, fertilisation of the egg
cell activates its «ethylene
signalling» pathway, which degrades the nucleus of the persistent synergid
cell.
Kong and Crotty's team discovered that ICOS recruits the
signaling TBK1 enzyme, which
activates certain genes in Tfh
cells, thus beginning the whole process of high - affinity antibody production.
In other organisms, there is instead a
signaling mechanism: An embryonic
cell receives chemical
signals from neighboring
cells that
activate (or repress) the genes that allow for germ - line function.
When an external
signal is detected by the
cell, the other plasmid is also
activated, leading to insertion of its sequences instead.
Normally, when the body detects an outside invader such as a virus, a
signalling system known as the PKA pathway responds by turning on 99 genes that then
activate T -
cells to destroy the invader.
Like a cascade, after the first molecule in a pathway receives a
signal, it
activates another molecule and so forth until the
cell function is carried out.
Scientists at The Institute of Cancer Research (ICR) used the
cells of fruit flies, modified with a fluorescent marker that is
activated when the
cells are put under stress, to identify the
signals responsible for driving up activity of the ER.
«Protection for the gut barrier: New approach may prevent graft - versus - host disease:
Activating signal paths could protect patients from dangerous immune reactions after stem
cell transplantations.»