Sentences with phrase «from embryonic tissue»

Blastoma: Tumors formed from embryonic tissue or developing cells are known as blastomas and are more common in children than adults.

Last December, for instance, Chien's group reported finding markers for heart muscle stem cells by tracing their development from embryonic tissue.

Not exact matches

Scientists looking for new methods to make human tissue have successfully used cloning technology to create embryonic stem cells from skin cells.

From the embryonic stem cells, the researchers produced a type of tissue called retinal pigment epithelium (RPE).

Da Cruz and his team grew replacement RPE cells from human embryonic stem cells on a thin plastic scaffold, before transplanting the tissue into the back of each volunteer's eye.

Two people with severe sight loss can now see well enough to read after receiving tissue grown from human embryonic stem cells.

Stem cells from breast milk can grow into many other kinds of human tissue, raising hopes of an ethical source of embryonic - like stem cells

ERRORS have occurred in a type of stem cell that could be used instead of embryonic stem cells — and in tissues made from them.

Like a Texan who keeps his drawl after moving to California, adult cells reprogrammed to resemble embryonic cells retain some signatures of the tissue from which they came.

On the other hand, the problem is, you know, with embryonic stem cells, they haven't been able to get stem cell lines from livestock animals that can proliferate in that way, without just sort of veering up in their own direction and turning into, instead of muscle, turning into brain tissue or bone tissue or something else.

Organlike tissue bits can be generated from pluripotent stem cells that are either plucked from embryos or created by taking a person's adult skin or blood cells and chemically inducing them to revert to an embryonic - like state.

The results help fill in the scientific puzzle kicked off by Dolly's cloning, which proved that mammalian egg cells were capable of dissolving the genetic roadblocks that limit the potential of most adult cells to give rise to only a single type of tissue — that of the organ from which they hail — whereas embryonic stem cells have the potential to become virtually any kind of body tissue.

Stem cells from adult bone marrow normally generate bone, muscle, cartilage and fat cellsa limited set compared with embryonic stem cells, which can spawn the full spectrum of adult tissues.

The result — the second such finding in the past year — suggests that similar cells from human testicles might have similar powers, paving the way to creating replacement tissue for men who have suffered damage from heart attacks or other injuries and avoiding some of the controversy surrounding embryonic stem cells (ESC).

The new approach builds on information gleaned from developmental studies of embryonic stem cells (see story # 16) and one day may be used to create healthy replacements for harmed or diseased tissue.

Pluripotent stem cells include embryonic stem cells, which are derived from early embryos, and induced pluripotent stem cells, which are made by reprogramming cells taken from adult tissues such as skin.

A team of researchers from DuPont added so - called morphogenic genes — known from basic research to promote the production of embryonic tissue — to the other genes being transformed (in this case to express green fluorescent protein as a marker of transformation).

From an entire organ to a dose of embryonic stem cells, if the tissue's DNA came from anyone else, the transplant would be rejected without the aid of harsh immunosuppressive drFrom an entire organ to a dose of embryonic stem cells, if the tissue's DNA came from anyone else, the transplant would be rejected without the aid of harsh immunosuppressive drfrom anyone else, the transplant would be rejected without the aid of harsh immunosuppressive drugs.

Moreover, if embryonic stem cells were cloned from the patient, he or she wouldn't have problems with immunological rejection of the cultured tissue.

Specifically, the researchers generated the tissue from human embryonic stem cells with the resulting muscle having significant similarities to human heart muscle.

Previous research in rodent disease models has shown that transplanted oligodendrocyte precursor cells derived from embryonic stem cells and from human fetal brain tissue can successfully create myelin sheaths around nerve cells, sometimes leading to dramatic improvements in symptoms.

This has always been a worry with tissues produced from embryonic stem cells, as these have the capability to form tumours if any are left in their original state in the transplanted tissue.

Vermulst's study looked only at tissues from the heart, brain, and embryonic fibroblasts.

A group that included researchers at the Wellcome Trust Sanger Institute and the University of Cambridge, both in the United Kingdom, developed a possible treatment for A1ATD by first reprogramming a skin cell from a patient into iPS cells, which are embryonic - like cells that can develop into many tissue types.

The researchers did this by injecting the cells into embryonic pancreatic tissue taken from mice engineered to lack neurogenin 3.

The research used skin samples from five men to create what are known as induced pluripotent stem cells, which closely resemble embryonic stem cells in their ability to become nearly any tissue in the body.

According to the researchers, these findings suggest that differences in shape from cell - to - cell within a tissue are key to their ability to jam and unjam — and that this process appears to drive biological events including embryonic development, wound healing, and, potentially, cancer cell invasion.

The potential of iPS cells to help treat everything from damaged heart tissue to Parkinson's disease, has prompted intensive research that has looked into the use of skin fibroblast cells as an alternative to controversial embryonic stem cells.

Tumors were suspected to be tissues that had been triggered to become embryonic - like again, and it is now generally accepted that tumors are indeed more «embryonic» than the tissues they are derived from, due to the re-expression of embryonic - related genes.

This finding complements previous research from the University of Edinburgh and the National Institute for Medical Research which showed that embryonic stem cells can be coaxed into this spinal cord cells; however, the Cambridge researchers showed that the in the embryo - like aggregates, the structural organization is more robust and allows for the polarised growth of the tissue.

iPSCs are cells that can be take from adult tissue and «reprogrammed» into embryonic stem cell (ESC)- like cells.

A research team said it has produced stratified retinal tissues from human embryonic stem cells for the first time in...

2007 also saw one of the most game - changing developments in the stem cell field; researchers learned how to create cells like embryonic stem cells, but instead of coming from an embryo these cells are created from adult cells, potentially cells from any tissue in the human body.

The idea of reprogramming a cell from adult tissue into an embryonic - like cell existed long before the creation of iPS cells.

The relationship between cancer and embryonic tissues was first proposed in the 1870s by Francesco Durante and Julius Cohnheim, who thought that cancers originated from cells in adults that persist in an immature, embryonic - like state.

A human embryonic stem cell is reined in — prevented from giving up its unique characteristics of self - renewal and pluripotency — by the presence of a protein modification that stifles any genes that would prematurely instruct the cell to develop into heart or other specialized tissue.

iPSCs are cells that were originally from adult tissues, but have been forced to produce proteins that are thought to be essential for the pluripotency of human embryonic stem cells.

The idea of reprogramming a cell from adult tissue into an embryonic - like, pluripotent cell existed long before the creation of iPSCs.

Stem cells harvested from amniotic fluid and placental tissue are readily obtainable and have properties of both embryonic and adult stem cells.

Because the cells were derived from human embryos or fetal tissue, pro-life groups condemned embryonic stem cell research as morally wrong.

Mouse brain tissue from three different stages of the mouse brain development; embryonic day 15, postnatal day 2 and postnatal day 21, was studied.

Most Alkbh1 deficient mice die during embryonic development, and survivors are characterized by defects in tissues originating from the ectodermal lineage.

InvivoSciences makes engineered heart tissues from mouse embryonic stem cells and stem cells from differentiated adult tissues in humans, such as fat and skin.

Prof Muzlifah Haniffa, from Newcastle University, said: «This research is possible due to the Human Developmental Biology Resource, which provides human embryonic and fetal tissues to ethically approved scientific studies such as the HDCA.

Both human embryonic stem cells (hESC) and induced pluripotent stem cells (iPSC) can colonize the mouse embryo in a manner predicted from classical developmental fate mapping and faithfully recapitulate tissue - specific fate post-transplantation.

Adult stem cells were once believed to be more limited than embryonic stem cells, only giving rise to the same type of tissue from which they originated.

Teratomas containing derivatives from all three embryonic germ layers confirmed that the hiPSCs (but not the original NPCs used) were pluripotent and able to differentiate to complex tissues in two different experimental settings (Fig. 2J and Figure S3).

Embryonic stem cells derived from human blastocysts have the key advantage of pluripotency, meaning that they form nearly all cell types but also have the disadvantage of forming tumors in vivo, which may limit clinical application to tissue engineering rather than cell transplantation.

But in investigator - blinded comparisons of tissue sections from each group of mice, no evidence of defects related to loss of Wnt signaling were found in embryonic or adult pulmonary, renal, cerebral, or skeletal tissues.

Mouse embryonic stem cells derived from the epiblast contribute to the somatic lineages and the germline but are excluded from the extra-embryonic tissues that are derived from the trophectoderm and the primitive endoderm upon reintroduction to the blastocyst.