The DP consists of a small group
of fibroblast cells derived from the mesoderm.
It spurred the fastest growth
of fibroblast cells, with 17 per cent more cells formed after six days as in a control culture.
The research has also investigated the role of Rho - kinase inhibition on cellular - scale protein expression and stimulation of cellular differentiation
of fibroblast cells.
This microscopic image
of fibroblast cells shows the induction of cell fusion by a newly described gene and its protein, called myomerger.
Mechanosensitivity
of fibroblast cell shape and movement to anisotropic substratum topography gradients.
Multi-drug resistance protein 4 (MRP4)- mediated regulation
of fibroblast cell migration reflects a dichotomous role of intracellular cyclic nucleotides.
Not exact matches
Using patient's own tissue and specific combination
of reprogramming factors, skin
fibroblasts are successfully converted to
cell type that... Continue reading Breakthrough Device Looks to Heal Organs
In a preliminary experiment, the team found that stem
cells produced from
fibroblasts of men with Klinefelter syndrome also lost the extra sex chromosome.
The team took small pieces
of ear tissue from XXY and XYY mice, cultured them, and collected connective tissue
cells known as
fibroblasts.
They turned the
fibroblasts into stem
cells and noticed that in the process, some
of the
cells lost the extra sex chromosome.
Ueli Schibler
of the University
of Geneva showed in 1998 that the per genes
of rat connective - tissue
cells called
fibroblasts are active according to a circadian cycle.
The team also transplanted treated
fibroblasts into the hearts
of live mice, where they developed into cardiomyocytes (
Cell, DOI: 10.1016 / j.
cell.2010.07.002).
Working with human breast tissue, the new study's authors attempted to induce EMT in normal
cells; they figured they would just get
fibroblasts, a type
of connective tissue that is important in wound healing.
Repeated transfection
of two expression plasmids, one containing the complementary DNAs (cDNAs)
of Oct3 / 4, Sox2, and Klf4 and the other containing the c - Myc cDNA, into mouse embryonic
fibroblasts resulted in iPS
cells without evidence
of plasmid integration, which produced teratomas when transplanted into mice and contributed to adult chimeras.
A team led by Byeong - Chun Lee
of Seoul National University in South Korea created the dogs by cloning
fibroblast cells that express a red fluorescent gene produced by sea anemones.
The production
of virus - free iPS
cells, albeit from embryonic
fibroblasts, addresses a critical safety concern for potential use
of iPS
cells in regenerative medicine.
So Izpisúa Belmonte and his colleagues harvested
fibroblasts, which are far more common than stem
cells, from the skin
of people with the bone marrow disease Fanconi anaemia.
Ding's team took
cells called
fibroblasts from the connective tissues
of mouse fetuses and bathed them in a cocktail
of the four polyarginine - tagged proteins for 12 hours, then they removed the reprogramming proteins for 36 hours, and repeated this cycle four times over.
The team also tested nanoparticle absorption for other kinds
of human
cells, including
fibroblasts from donors
of older ages and found significant differences.
The researchers — James Robl, a developmental biologist and his colleagues at the University
of Massachusetts at Amherst, and Steve Stice at Advanced
Cell Technology in Worcester, Massachusetts — inserted a marker gene fused with a gene for resistance to the chemical neomycin into a culture
of connective tissue
cells called
fibroblasts.
«
Fibroblast growth factor receptor inhibitors are new therapies being developed in clinical trials for patients whose cancer
cells have genetic alterations in this family
of genes,» says Roychowdhury, a member
of the OSUCCC — James Translational Therapeutics Program.
Conventional, high - dose chemotherapy treatments can cause the
fibroblast cells surrounding tumors to secrete proteins that promote the tumors» recurrence in more aggressive forms, researchers at Taipei Medical University and the National Institute
of Cancer Research in Taiwan and University
of California, San Francisco, have discovered.
It takes far more expertise, however, to remove dozens
of PERV genes at once, as eGenesis does in pig
fibroblasts, which are connective - tissue
cells.
A new study by researchers at The Ohio State University Comprehensive Cancer Center — Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC — James) has identified a mechanism by which cancer
cells develop resistance to a class
of drugs called
fibroblast growth factor receptor (FGFR) inhibitors.
The researchers found that, in response to the maximum tolerated doses
of several commonly used chemotherapy drugs, breast cancer - associated
fibroblasts secrete large amounts
of cell signaling proteins called ELR + chemokines.
Amounts
of telomerase RNA increased in immortal
cells derived from primary mouse
fibroblasts.
To find out, John O'Neill, a biologist at the Medical Research Council's Laboratory
of Molecular Biology in Cambridge, U.K., and his team studied skin
cells known as
fibroblasts, which are essential for wound healing.
The «target»
cells on the other side
of the BeWo barrier to the nanoparticles were human
fibroblast cells, found in skin and connective tissue.
Avivi's team has found out that
fibroblast skin
cells from the armpits
of the rats can kill human cancer
cells in a dish.
When
cells that produced IL - 21 were put in culture with synovial
fibroblasts (which are the main contributors to joint inflammation in rheumatoid arthritis), they induced the production
of proinflammatory cytokines by these synovial
fibroblasts, and
cells that do not produce IL - 21, did not demonstrate this same outcome.
Importantly, the new technique grows the pluripotent stem
cells as floating spheres in high concentrations
of two growth factors,
fibroblast growth factor - 2 and epidermal growth factor.
Two months after therapy, tissue analysis showed less scarring and higher levels
of regenerative agents such as
fibroblast growth factor — which accelerate healing — in rats treated with SIS plus stem
cells compared with those treated with SIS alone.
In studies with human
fibroblasts that make up connective tissue, Boger's team tested whether NOD1 activity could affect CMV replication in cultures
of cells grown in the lab.
To see if the same chain
of events happens in rheumatoid arthritis, Smith's team tested whether various kinds
of fibroblasts would spur T
cell migration in test tubes.
In a related paper published online today in Nature Biotechnology, Konrad Hochedlinger
of the Harvard Stem
Cell Institute in Cambridge and his colleagues compared the gene expression patterns in mouse iPS
cells derived from white blood
cells, muscle precursor
cells, immune system
cells called B
cells, and
fibroblasts taken from tail tips.
Immune T
cells, on the other hand, overruled the protection
of the
fibroblasts.
Previous studies
of naked mole - rat
cells have found that
fibroblasts and their secretions have anti-cancer activity.
Hamlyn, working with Richard Schmidt
of the School
of Pharmacy at the University
of Wales in Cardiff, exposed human
fibroblast cells to six fungi strains.
For many years, tattoos were thought to work by staining
fibroblast cells in the dermal layer
of the skin.
A study by Mo's group in a 2011 issue
of Experimental Biology and Medicine (236:604 - 613) showed that normal
fibroblasts are 10-fold more resistant than murine B16 melanoma
cells to geranylgeraniol - mediated growth suppression.
The tissue, called the stroma, includes fat
cells, or adipocytes, that provide padding;
fibroblasts, which make the framework for tissue; pericytes in blood vessels, which are contractile
cells that help regulate blood pressure; as well as myoepithelial
cells comprising the outer layer
of the ductal system through which milk flows.
One found that a chemical compound caused valve
fibroblasts to become active, similar to what is observed during valve disease, but the other study indicated that the same compound prevented the
cells from calcifying, indicating that a key piece
of the valve disease puzzle was missing.
The experiments, including studies conducted in a bioengineered 3 - D model
of lung tissue seeded with relevant
cells, showed that CHI3L1 regulates a pathway that recruits
cells such as macrophages and
fibroblasts that produce the scarring, or fibrosis.
In the online edition
of Science, he and his colleagues report that Oct4 and Sox2 were capable
of converting neonatal foreskin
fibroblasts into
cells similar to Yamanaka's, whereas Nanog significantly boosted the frequency
of reprogramming and Lin28 upped it by a moderate amount.
Skin - producing
cells called
fibroblasts from the tip
of an adult mouse's tail have been reprogrammed to make eggs, Japanese researchers report online October 17 in Nature.
Now Yamanaka and his colleagues report in the journal
Cell that the same combination
of genes induced pluripotency in commercially available human
fibroblasts (connective tissue
cells that play a crucial role in healing) derived from the facial skin
of a 36 - year - old woman, the joint tissue
of a man, aged 69, and a newborn, respectively.
Normal
fibroblasts form a meshwork
of fibronectin that helps support
cells.
«Scientists have thought that
fibroblasts are terminally differentiated, meaning they can't adopt the fate
of other kinds
of cells; but our study suggests this may not be entirely true,» said Eric Ubil, PhD, a postdoctoral fellow at UNC and first author
of the Nature study.
Researchers from the UNC School
of Medicine have discovered that
cells called
fibroblasts, which normally give rise to scar tissue after a heart attack, can be turned into endothelial
cells, which generate blood vessels to supply oxygen and nutrients to the injured regions
of the heart, thus greatly reducing the damage done following heart attack.
Cells called cancer - associated
fibroblasts arrange a normal meshwork
of fibers into straight tracks,
cell biologist Begum Erdogan of Vanderbilt University in Nashville and colleagues reported December 13 at the annual meeting of the American Society for Cell Biol
cell biologist Begum Erdogan
of Vanderbilt University in Nashville and colleagues reported December 13 at the annual meeting
of the American Society for
Cell Biol
Cell Biology.