Characterization and functionality
of cell surface molecules on human mesenchymal stem cells.
Not exact matches
At the end
of September, the European Commission approved a marketing application for Lutathera, a radioactive
molecule that targets specific receptors found on the
surface of neuroendocrine tumor
cells.
«What we have described as globalization is remarkably close to Teilhard de Chardin's planetization, in which «[mankind, born on this planet and spread over its entire
surface, come [s] gradually to form round its earthly matrix, a single, major, organic unity, enclosed upon itself.4 Thus the globalization
of humankind could lead to the formation
of a new kind
of living entity — a social organism — on the same cosmic principle as that by which atoms join to form
molecules,
molecules join to form mega-
molecules, mega-
molecules unite to form living
cells, and innumerable
cells constitute an organism.
First the vitalization
of matter, associated with the grouping
of molecules; then the hominization
of Life, associated with a super-grouping
of cells; and finally the planetization
of Mankind, associated with a closed grouping
of people: Mankind, born on this planet and spread over its entire
surface, coming gradually to form around its earthly matrix a single, major organic unity, enclosed upon itself; a single, hyper - complex, hyper - centrated, hyperconscious arch-molecule, co-extensive with the heavenly body on which it was born.
Inside the brain, prions presumably latch onto PrPC
molecules on the
surface of nerve
cells and impose the prion conformation.
The immune system depends on
molecules called T
cell receptors on the
surface of T
cells to recognize and respond to foreign antigens from virus - infected
cells, tumors and other threats.
Damaged mouse sciatic nerves produced hundreds
of times the normal amount
of two «chemoattractant»
molecules, Cxcl1 and Cxcl2, which attach to the
surfaces of neutrophils and draw the immune
cells into injured tissue.
This drug (vedolizumab) blocks a specific adhesion
molecule on the
surface of the T -
cell and thereby inhibits immune
cells from binding themselves to receptors present in the intestine, preventing the T -
cells from penetrating the blood vessels in the intestinal tissue.
In this study, the SIgN team discovered for the first time that the integrity
of p53 affects the production
of a special
cell surface protein called Major Histocompatibility Complex (MHC) class I. MHC class I
molecules on the cancer
cell surface serve as targets for the immune system.
One key gene encodes the making
of a receptor called TREM2, a docking site for
molecules on the
surface of microglia and other innate immune
cells.
The mushroom - shaped protein specializes in infecting
cells, first by binding a trio
of sites on its head to three separate sugar
molecules on the
surface of targeted
cells.
LFA - 1
molecules stud the
surface of killer T
cells.
Researchers studied the structure
of proteins from one strain
of the H7N9 virus that caused the outbreak and tested how strongly one
of the proteins bound to
molecules on the
surfaces of bird and human
cells.
MP1 interacts with lipids that are abnormally distributed on the
surface of cancer
cells, creating gaping holes that allow
molecules crucial for
cell function to leak out.
Endocannabinoids act on a group
of cell -
surface molecules called cannabinoid receptors that help to regulate appetite, mood and memory.
Most cancer vaccines developed to date have been designed to recognize and attack a specific known
molecule — such as a
cell -
surface receptor — that is likely to be found on cancerous
cells in any patient with that type
of tumor.
Bode believes these sugars, because they are indigestible, journey intact to the colon, where their structure mimics
molecules on the
surface of gut epithelial
cells.
Some
of the animals received normal T
cells back, and others got
cells deficient in a
surface molecule that activates regulatory T
cells.
In their report published in Science Immunology they describe how expression
of a specific
molecule — complement C5a — is required to cause the immune
cells called neutrophils to adhere to joint
surfaces and migrate into the joint, a process known to set off the inflammatory cascade.
The microbes deploy FimH on the end
of long, spaghettilike strands that extend from the
cell body and latch onto sugar
molecules on the
surface of mucosal
cells.
Ulijn's gel is composed
of two simple synthetic peptide derivatives: (1) a component that binds to copies
of itself with high directional preference, resulting in the spontaneous formation
of nanoscale fibers when the
molecules are dissolved in water, and (2) a surfactant - like
molecule that associates with the fiber
surface and presents simple,
cell - compatible chemical groups.
The engineered protein has two ends: one activates T
cells by binding to a
surface molecule called the CD3 receptor, and the other — based on an antibody called VRC07 — powerfully binds to more than 90 percent
of HIV strains.
The odorant receptor
molecules sit on the
surface of sensory nerve
cells in our nose.
Researchers already knew that there was a time lag
of between 1 and 3 hours between the synthesis
of Class II
molecules within the APC and their appearance on the
cell surface, combined with antigen.
RAR
molecules are abundant on the
surface of cartilage
cells, hence the positive targeted response
of the drug.
Researchers knew that
cells could ingest some
molecules and break them down completely inside small vesicles called lysosomes, but none
of the products was transported back to the
surface of the
cell.
Researchers from BUSM and the University
of Cyprus compared the markers on the
surface of the cancer
cells to gene expression profile
of breast tumors deposited by researchers in international public databases and found that a
molecule named IL13RA2 (IL13R alpha2) was abundant in metastatic or late - stage BLBC.
The MSRs were then coated with lipids that formed a thin supported lipid bilayer (SLB), which resembles the outer membrane
of APCs and that the researchers then functionalized with a pair
of T
cell - stimulating antibodies that remain mobile in the lipid layer and can bind to receptor / co-receptor
molecules on the
surface of T
cells.
«The NILR1 is the genetic code for a receptor protein that is localized to the
surface of plant
cells and is able to bind and recognize other
molecules,» says Prof. Florian Grundler, chair at the Department
of Molecular Phytomedicine at the University
of Bonn.
They looked specifically for genes coding the major histocompatibility complex (MHC)-- a
molecule found on the
surface of cells that acts as a crucial component
of the immune systems
of most vertebrates.
In earlier work, these investigators showed — as numerous others had done — that the messenger
molecule, cyclic - di - GMP (c - di - GMP) promotes biofilm formation when such
surfaces are present, said principal investigator Vincent T. Lee, Associate Professor, Department
of Cell Biology and Molecular Genetics, University
of Maryland, College Park.
In particular, Nguyen and Ehrenstein discovered that adalimumab increases the expression
of TNF on the
surface of patient monocytes and promotes the association
of these TNF
molecules with receptor proteins on the
surface of regulatory T
cells.
A normal
cell has chemical receptors on its
surface that link up with specific
molecules generated by the body and control the timing
of such functions as eating and sleeping.
The researchers speculate that the act
of reprogramming adult
cells to pluripotency may induce the expression
of cell -
surface molecules the immune system has not seen since the animal (or person) was an early embryo.
The team, based at UCL, had already found that prostate cancer
cells have more
of the NAALADL2
molecule on their
surface compared to
cells from healthy tissue.
A pancreatic cancer vaccine could be made
of whole pancreatic cancer
cells, treated so they can't replicate, but modified to present certain
molecules on the
surface of those
cells.
NASA researchers triggered international headlines in 1996 when they discovered, among other possible indicators
of life, traces
of polycyclic aromatic hydrocarbons (multiringed carbon
molecules found in living
cells) along
surface fractures in ALH84001.
PD - 1 (programmed
cell death protein 1) is a receptor on the
surface of T
cells (the white blood
cells that are part
of the immune system), while PD - L1 (programmed death - ligand 1) is a
molecule that binds to PD - 1 and is often over-expressed on the
surface of cancer
cells, enabling them to evade the immune system and allow cancer to grow and spread.
Research groups in Munich, Essen, and Brussels have now detected a highly specific and exceptionally strong variant
of this adhesion, in which the bacterial
surface molecule HopQ binds itself to so - called «Carcinoembryonic Antigen - Related
Cell Adhesion
Molecules,» or CEACAMs for short, inside the stomach.
Their preliminary results identified two types
of immune
cells, CD4 + and CD8 + T
cells, which become mobilized to attack various
surface molecules on the TB bacterium.
The sodium channel lies on the
surface of the nerve and muscle
cells and is composed
of a large
molecule called the α - subunit, together with smaller β - subunit
molecules.
Tucked into the internal
surface of the
cell's outer membrane, these versatile
molecules coordinate cellular responses to a multitude
of signals that impinge from without
They may also induce the production
of antibodies that bind to
molecules on the
surface of cancer
cells.
Hans Røy, a geomicrobiologist at Aarhus University, found that each
cell uses about one oxygen
molecule per second — roughly one hundred - thousandth the metabolic rate
of typical
surface bacteria.
«We demonstrated some time ago that a
molecule called AAQ is capable
of causing nerve
cells to become light - sensitive, because it modifies the behavior
of ion channels in their
surface membranes,» Trauner says.
Chemists in California have identified and synthesised a complex sugar
molecule which lies on the
surface of white blood
cells, and through which the
cells «recognise» those blood vessels that lie near injured tissue.
If you imagine the female egg
cell (and later, the fertilized egg) as a spherical planet with its own intrinsic biological geography, then certain characteristics
of that
cell — the location
of protein
molecules or RNA messages or biochemical traits like pH or even the internal connective structures called microtubules — will be more prominent in certain regions, like one hemisphere as opposed to the other, or near the
surface rather than near the core.
On the
surface of our numerous star - shaped brain
cells called astrocytes, they have found the
molecule LRP4 is important in ensuring healthy levels
of a brain chemical that enables learning and memory, said Dr. Lin Mei, chairman
of the Department
of Neuroscience and Regenerative Medicine at the Medical College
of Georgia at Augusta University and Georgia Research Alliance Eminent Scholar in Neuroscience.
This could be done by attaching
molecules to the
surface of the bots that bind to specific receptors on the outside
of certain types
of cell.
A specific lung - targeting
molecule is attached to the carrier's
surface and the steriod, dexamethasone, an anti-inflammatory, is loaded into the nanogel, which then binds to lung endothelial
cells lining the inside wall
of the blood vessels where it rapidly delivers the drug.