They inserted
human cell receptors — protein molecules that let outside signals into the cell — into the nanodiscs, the first time this has been done to capture a virus capsid.
The technique is designed to detect and measure the molecular force in the single - molecule interaction by which
human cell receptors are activated.
Not exact matches
It just so happens that fat
cells have
human growth hormone
receptors, and growth hormone stimulates them to break down triglycerides and suppresses their ability to take up and accumulate circulating lipids.
The
human body has about 1,000 kinds of such
receptors, structures on the surface of
cells, which let the body respond to a wide variety of chemical signals, like adrenaline.
Specifically, when capsaicin frequently binds to
receptors within the
human central nervous system's TRPV1 channel (the sensory
receptor system for pain and heat detection), these
receptors deplete and this depletion results in a whole host of benefits for the central nervous system at large, including terminating cancer
cells, increasing the metabolic rate and digestive efficiency, increasing circulatory blood flow, and combatting inflammation, and making you feel better about the world.
Capsaicin only inflames
human cells because heat - detecting proteins in our nerve endings called TRPV1
receptors become activated in the chemical's presence, mistakenly interpreting capsaicin as a sign of extreme heat, and sending the body's burn defenses into overdrive.
Effects of myo - inositol versus fluoxetine and imipramine pretreatments on serotonin 5HT2A and muscarinic acetylcholine
receptors in
human neuroblastoma
cells.
Like the Rosetta Stone that scholars used to decode hieroglyphics, researchers trained the algorithm with more than 4,600 T
cell receptors and then used it to correctly assign 81 percent of the
human T
cells and 78 percent of mouse T
cells to one of 10 different viral epitopes.
The unaltered hemagglutinin is akin to a key that unlocks a so - called
receptor molecule in
cells lining the upper airways of
humans and other mammals.
Lab testing showed that the plant - made virus particles, which naturally bind to
receptors on cancer
cells, were taken in by
human breast cancer
cells.
The accuracy for
human eye and hair color is much higher at 0.9, and chronological age — based on T
cell receptors — is the same.
Now, scientists from the Perelman School of Medicine at the University of Pennsylvania reveal that the release of AMPs is partially controlled by bitter taste
receptors in the upper airway on a
cell previously identified in animals and only recently in
humans known as solitary chemosensory
cells (SCCs).
The teams at AFB International and Integral Molecular studied the behavior of two different cat bitter taste
receptors in
cell - based experiments, investigating their responsiveness to bitter compounds, and comparing these to the
human versions of these
receptors.
The scientists harvested the mutant hemagglutanin proteins from the
cells and tested how strongly they bound to
human - type and bird - type
receptors.
They added the modified adrenaline compound, called CP - 331679, to cultured
human fat
cells, and saw that the
receptors were activated and were triggering a biochemical cascade inside the
cell.
The LPA
receptor is expressed in the brain of
human fetuses, just as in mice, and in the same types of neural progenitor
cells.
Although SB 247464 doesn't work with
human cells, the discovery will spur the pharmaceutical industry's search for protein - mimicking drugs, says Mark Goldsmith, who studies cytokine
receptors at the University of California, San Francisco.
The result, published January 5 in Science Immunology, suggests that the protein, a
receptor involved in immune
cell signaling, plays a role in spontaneous abortions and other
human pregnancy complications.
Although the Nppb - knockout mice lived a normal lifespan, when the researchers killed the
receptor cells in the spinal cord, the mice died prematurely, suggesting that it could be dangerous to try
humans, Hoon says.
«Plasmodium falciparum malaria parasites have evolved several key - like molecules to enter into
human red blood
cells through different door - like host
receptors.
When BPA hits
cell receptors, it is as powerful as estradiol, the most potent estrogen in
humans.
Specifically, the study — reported online in The Journal of Infectious Diseases — shows that E. coli K1 modulates the protein peroxisome proliferator - activated
receptor - gamma (PPAR - γ) and glucose transporter - 1 (GLUT - 1) levels at the blood - brain barrier in
human brain microvascular endothelial
cells.
Because of a quirk of evolution, these plant chemicals are close enough to the natural hormone's shape to bind to the oestrogen
receptors on
cells in the
human body.
In laboratory studies reported in the Proceedings of the National Academy of Sciences (PNAS), the researchers found that these «neutralizing» antibodies prevented a key part of the virus, known as MERS CoV, from attaching to protein
receptors that allow the virus to infect
human cells.
Using in vitro, or test tube, experiments, the researchers applied these chemicals to
human cancer
cells to measure changes of estrogen
receptor - and androgen
receptor - target genes and transcriptional activity.
Newly - discovered mechanism of action of the bacterial superantigen toxins: Superantigens bind to both B7 - 2 and CD28, the major costimulatory
receptors expressed on
human immune
cells.
In experiments in mice and
human cells, researchers found that blocking CXCR4 — a so - called homing
receptor protein molecule that helps T
cells mature and attracts blood
cells to the bone marrow — halted disease progression in bone marrow and spleen tissue within two weeks.
MERS CoV (CoV stands for coronavirus) has on its surface an array of spike - shaped proteins that bind to host
cells — specifically to
receptor proteins called DPP4 on the surface of
cells that line
human airways.
Here, Patil et al. have carried out single RNA - seq and sequenced the T
cell receptors (TCRs) of CD4 + T
cells from
human blood to identify precursors that give rise to CD4 - CTLs.
«The novelty of this study is two-fold: We used a preclinical prevention paradigm of a CRF - antagonist (a drug that blocks the CRF
receptor in brain
cells) called R121919 in a well - established AD model — and we did so in a way that draws upon our experience in
human trials.
She helped lead a GSK project focused on designing a monoclonal antibody to link to the HER3
receptor on
human cells as a treatment for cancer.
In
humans, MS4A
receptors have previously been found in the intestines, lung
cells, and even sperm
cells.
By activating the Ret
receptor, the scientists were able to prevent in flies and
human cell cultures the degeneration of mitochondria, which is caused by a gene defect related to Parkinson's disease.
Organ transplantation is a challenge, requiring immunosuppressive drugs and careful matching of donor and recipient for
human leukocyte antigen markers,
receptors on immune
cells that recognize foreign proteins.
Varki studies siglecs, small groups of
receptors that thickly stud the immune T
cells of monkeys and apes but are few and far between in
humans.
The first
human trials testing genetically engineered
cells missing the CCR5
receptor, begun in 2009, have been small but impressive.
A study from the Wellcome Trust Sanger Institute, the Wellcome Trust Centre for
Human Genetics and their collaborators has identified a genetic rearrangement of red blood
cell glycophorin
receptors that confers a 40 per cent reduced risk from severe malaria.
Plasmodium parasites infect
human red blood
cells and gain entry via
receptors on the
cell surface.
He is part of the team that cloned the gene for the
human T
cell receptor in 1984, which he describes as «the Holy Grail of immunology.»
Over the past two years, investigators from the Perelman School of Medicine at the University of Pennsylvania have reported results from a
human trial in GBM using chimeric antigen
receptor (CAR) T
cell therapy, through which patients» own T
cells were engineered to track down and kill cancer
cells that express a tumor - specific protein known as EGFRvIII.
«Natural resistance to malaria linked to variation in
human red blood
cell receptors: First study to identify protective effect of glycophorin gene rearrangements on malaria.»
Dr. Mak is an internationally acclaimed immunologist renowned for his 1984 cloning of the genes encoding the
human T -
cell receptor.
«If further studies validate that these processes are critical in
human breast cancers,» Koshy notes, «the possibility exists that agents that favorably modify the biophysical properties of the extracellular matrix, or that target the
receptors and signaling molecules associated with how
cells sense this matrix, could be used as a new avenue for the prevention or treatment of breast cancers.»
In
human medicine EGFR is frequently used as the target of cancer immunotherapy because many cancer
cells bear this
receptor on their surface.
From these early studies, it became clear that insulin (a hormone secreted by the pancreas that signals
cells to absorb sugar) and its
receptors are critical for longevity in species from yeast or fungi to
humans.
In the process, the plasma membrane
receptor Fas (CD95) is key; this
cell receptor occurs in almost all
human cells and is involved in programmed
cell death (apoptosis).
Josef Singer and Judith Fazekas, both lead authors of the study, discovered that a
receptor frequently found on
human tumor
cells (epidermal growth factor
receptor or EGFR) is nearly 100 percent identical with the EGF
receptor in dogs.
To find out, the team engineered baby hamster kidney
cells to express the
human ACE2
receptor.
Their experiments with lab - grown mouse and
human T -
cells suggest that people with cancer who have a greater variety of such
receptors may respond better to immunotherapy drugs and vaccines.
Dr. Shiloh and his team currently are working to discover the
human cell - surface
receptors for Mtb that are involved in the bacteria's M -
cell translocation, as well as to determine the exact machinery used by the
cell to move the bacteria from the surface to the bottom of the
cell.