Gαs can convert GTP to GDP, but still
keeps signaling the cell to grow and divide.
Not exact matches
Immunotherapy differs from more traditional cancer treatments, such as surgery (cutting malignant
cells out of the body), chemotherapy and radiation (poisoning the deadly mutants), and even the newer, more precise molecular drugs that attempt to jam the protein
signals that tell tumor
cells to
keep dividing and conquering.
Previous studies showed that, in depressed patients, lipid rafts sequester a protein involved in
cell signaling, called GαS,
keeping it from doing its job.
«The problem with plasma
cell - free liquid biopsy in particular is that the amount of wild - type [DNA] can be very, very high, and so
keeping that really rare
signal from being swamped out by the wild - type... is key,» says Dawne Shelton, R&D manager for in vitro diagnostic products at Bio-Rad in Hercules, California.
One factor
keeping cells in this immature state is the PTEN gene, which suppresses a
signalling pathway involved in
cell growth.
Unfortunately, most of the loss is in gray matter, the critically important part of the brain composed of neurons, the
cells that transmit the
signals that
keep us breathing and thinking.
Normal SCN
cells in the lab
keep cycling in synchrony without regard to temperature pulses, but research from another group showed that they could be «reset» by temperature changes if they could no longer
signal to each other.
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 third class of glia, known as Schwann
cells and oligodendrocytes, form insulating sleeves around neurons to
keep their electric
signals from diffusing.
They depleted their reserves of these chemicals rapidly each time a new auditory
signal came in, and they decreased the amount of space within the
cells that housed sac - like structures called vesicles — biological storage tanks where neurotransmitter chemicals are
kept.
Hong - Zhong Zhang and colleagues at the University of California at San Francisco deciphered the
signaling system between a protein in a resistant staph
cell that
keeps watch for beta - lactams and a second protein that it tells to turn on the gene for beta - lactamase when the drugs are present.
But T
cells typically can not attack tumors because the immunosuppressive microenvironment of tumors
keeps APCs from turning these
signals on.
In order to
keep step with the «quickened» mitochondrial translation, somatic
cells activated the mTOR
signaling pathway in order to accelerate cytoplasmic translation and balance mitochondrial translation.
This mechanism that
keeps tumor
cells in a state that encourages metastasis requires constant
signaling — meaning constant binding of DDR2 to collagen.
By telling brain
cells when they have struck gold, the chemical apparently
signals them to
keep doing whatever they did that led to success.
Scientists at the Wyss Institute at Harvard University set out to solve the mystery of how blood flow
keeps the vessels intact and, to their surprise, discovered a completely new
cell signaling pathway that is a promising target for drugs to treat a variety of debilitating conditions.
I've still
kept my own lab going focusing on understanding what pluripotent stem
cells really are, and the extrinsic
signals that govern their self - renewal and differentiation.
They identified
signals that white blood
cells use to control their behaviour, then one by one disabled those
signals — discovering that one particular molecule called ERK5 could be manipulated to encourage white blood
cells either to throw out pathogens better or to
keep them inside and try to kill them for longer.
Tumors, for example, send growth
signals to blood vessel
cells to
keep them growing and thus secure the blood supply to the tumor.
They believe this is because BMP
signaling enhances
cell renewal — a
cell's ability to replicate — and
keeps them in a pluripotent state, able to turn into any type of
cell.
The prevailing dogma in cancer research is that TGF - β
signaling keep cells from morphing into cancer, says Lopez - Diaz.
Rather than preventing the mice developing more fat
cells,
keeping the weight off was due to the activation of the
signaling pathway stopping the existing fat
cells get bigger.
Putting weight on bones sends a
signal to certain
cells to
keep building new bone.
In addition, the chronic elevation of cortisol levels caused by excessive stress negatively affects the receptors for both insulin and leptin, which makes it harder for the body to read the
signals of those hormones, thus
keeping fat trapped in the
cells and making you hungry all the time.
Vata is responsible for all movement - related functions of the body, including the breath and heartbeat, the flow of blood in our blood vessels and food in the gut, the countless nerve
signals that
keep all of our
cells and organs functioning, and the communication between
cells and organs.
Simple: When your body needs energy because you're consuming fewer calories than you are burning (an energy deficit), then your body releases hormones and enzymes that
signal your fat
cells to release your fat reserves instead of
keeping them in storage.
Insulin also sends
signal to all the fat
cells in your body to
keep hoarding the fat and to
keep looking for more fat.
By
keeping insulin levels low, less insulin
signaling occurs within
cells, which results in healthier and longer - living
cells.
Cancer occurs when there is a problem with this
signal; the damaged
cell keeps growing and multiplying.
It's estimated that nearly 97 percent of
cell phone
signals never reach a destination and are simply lost, but with this technology some of that can be recaptured and used for
keeping cell phone's going without needing to be plugged in.
This kit should include a flashlight, some extra batteries, blankets to
keep you warm in case you break down, a brightly colored cloth to tie to your antenna to
signal help, sand (or cat litter), a candle, some matches, a shovel, non-perishable foods that have a high calorie count, a
cell phone, jumper cables and a first - aid kit.