Researchers chemically
reprogrammed human stem cells into small bundles of functional brain cells that mimic the developing brain.
Not exact matches
To make the HSCs, the Harvard group used
human skin cells to create induced pluripotent
stem cells (iPSCs), adult cells researchers genetically
reprogram to an embryonic -
stem - cell state, where they can grow into any kind of cell.
A group in Japan hopes to test a similar approach in
humans using
stem cells from
reprogrammed adult cells within the next three years.
Genetically
reprogramming late - stage
human cancer cells to a
stem - cell state enabled them to force the
reprogrammed cells to progress to an early cancerous state, revealing secreted blood biomarkers of early - stage disease along the way.
The researchers
reprogrammed the cells to create induced pluripotent
stem cells in an FDA - compliant facility at the Broad Stem Cell Research Center; the use of this facility is an important step in the process as preclinical research moves toward human clinical tri
stem cells in an FDA - compliant facility at the Broad
Stem Cell Research Center; the use of this facility is an important step in the process as preclinical research moves toward human clinical tri
Stem Cell Research Center; the use of this facility is an important step in the process as preclinical research moves toward
human clinical trials.
This year they succeeded in generating mini-livers, or liver buds, from
stem cells that were taken from
human skin and
reprogrammed to an embryonic state.
The
reprogrammed skin cells that have led to this enthusiasm seem to have the same properties as the embryonic
stem cells (ESCs) found in
human embryos just a few days old.
«It would be a big mistake,» Meissner notes, «to say, «now we can generate these [
reprogrammed] cells, [so] we have to stop all
human embryonic
stem cell research.»»
But Hochedlinger, whose group's paper appears in a new journal called Cell
Stem Cell, stresses that researchers still need to study
human cells to learn how to
reprogram them and have no idea yet which approach would work better in the long run.
For the new study, the team used a cell -
reprogramming technique (similar to those used to
reprogram skin cells into
stem cells) to generate
human DRG - type sensory neurons from ordinary skin cells called fibroblasts.
In a commentary accompanying the new study, Dolly cloner Ian Wilmut and his co-worker Jane Taylor of the University of Edinburgh in Scotland wrote that «a modified approach to direct
reprogramming... is likely to be the ultimate method of choice for producing
human stem cells.»
One week after a breakthrough finding, scientists report they can
reprogram human skin cells to behave like embryonic
stem cells without a growth factor known to cause cancer
The 2012 platform also repeats previous calls for expanding federal funding «for the
stem - cell research that now offers the greatest hope for many afflictions — with adult
stem cells, umbilical cord blood, and cells
reprogrammed into pluripotent
stem cells — without the destruction of embryonic
human life.»
In this new study, the scientists mimicked
human tissue formation by starting with
stem cells genetically
reprogrammed from adult skin tissue to form small chambers with beating
human heart cells.
Skin cells from bonobos (pigmy chimps) were
reprogrammed to pluripotent
stem cells, an advance that allows scientists to study the differences between the neurons of
humans and chimps.
Using a process called cellular
reprogramming, the researchers take a patient's skin cells, convert them into so - called induced pluripotent
stem (iPS) cells, which can differentiate into all the cells within the
human body.
Skin cells
reprogrammed to act like embryonic
stem cells — a breakthrough first reported in
human cells 2 weeks ago — are already showing promise as a therapeutic agent.
Ultimately, this knowledge will be useful for understanding the very early events in
human development, which are reflected in the naïve and primed
stem cell states, and could also lead to improved methods to
reprogram human cells for
stem cell - based therapies.
In this new study, the scientists mimicked
human tissue formation by starting with
stem cells genetically
reprogrammed from adult skin tissue to small chambers with beating
human heart cells.
Scientists in the lab have successfully generated neural
stem cells (NCS) from
human embryonic
stem cells and
human induced pluripotent
stem cells (these are
stem cells that have been
reprogrammed from adult cells).
Human pluripotent
stem cells from two sources today, one physiological embryonic
stem cells «ES» from the embryo, and the other experimental cells «iPS» induced pluripotency by
reprogramming genetic somatic cells.
It has recently been demonstrated that mouse and
human fibroblasts can be
reprogrammed into an embryonic
stem cell - like state by introducing combinations of four transcription factors.
Induced pluripotent
stem cells that were
reprogrammed from normal adult
human tissue.
John Gearhart, one of the first scientists to isolate, in 1998,
human embryonic
stem cells, also downplayed the therapeutic value of
human cloning, saying «the more we learn about
reprogramming, the more I think IPS will be the one of choice.»
Disease - specific
human pluripotent
stem cells, from embryonic origin or derived from
reprogramming somatic cells, offer the unique opportunity to have access to a large spectrum of disease - specific cell models.
Yamanaka's initial work in
reprogramming cells utilized mice, not
human, embryonic
stem cells, and he used the same method for
human iPSC production.
The
stem cell research community hopes that as more is understood about STAP cells, they will join embryonic
stem and iPS cells as another
reprogramming tool for use in their collective quest to understand and treat
human disease.
Since
human embryonic
stem cells grow in an adherent culture system, for cells being
reprogrammed this «new culture system» is an adherent culture system (to try and mimic the conditions the embryonic
stem cells want to be happy).
His research is focused on retinal regeneration by
reprogramming human fibroblasts either into induced pluripotent
stem cells or directly into photoreceptors.
WIKIMEDIA, CSIROAfter
human somatic cells are
reprogrammed into induced pluripotent
stem cells (iPSCs), the resulting cells retain both genetic and epigenetic indicators of the age of the person who donated the somatic - cell progenitors, scientists have found.
The
reprogramming of
human somatic cells into induced pluripotent
stem cells (iPSCs) offers tremendous potential for cell therapy, basic research, disease modeling, and drug development.
His lab has pioneered the generation of clinical grade induced pluripotent
stem (iPS) cells using non-viral
reprogramming methods such as direct delivery of
reprogrammed proteins and novel episomal methods, and has recently identified novel mechanisms underlying metabolic
reprogramming during
human induced pluripotency.
The first reports of the successful
reprogramming of adult
human cells back into so - called induced pluripotent
stem (iPS) cells, which by all appearances looked and acted liked embryonic
stem cells created a media stir.
The Herlyn lab is differentiating multi-potent
stem cells from the
human dermis and
reprogrammed stem cells into melanocytes to test the hypothesis that melanocyte
stem cells are more prone to transformation than fully differentiated cells, and that neighboring cells and matrix in the microenvironment play critical roles in differentiation and transformation.
Their method, published ahead of print in the Oct. 17, 2008 online edition of Nature Biotechnology, not only provides a practical and simple alternative for the generation of patient - and disease - specific
stem cells, which had been hampered by the low efficiency of the
reprogramming process, but also spares patients invasive procedures to collect suitable starting material, since the process only requires a single
human hair.
Reprogramming human somatic cells to pluripotency represents a valuable resource for the development of in vitro based models for
human disease and holds tremendous potential for deriving patient - specific pluripotent
stem cells.
Recently, mouse neural
stem cells (NSCs) have been shown capable of
reprogramming into a pluripotent state by forced expression of Oct3 / 4 and Klf4; however it has been unknown whether this same strategy could apply to
human NSCs, which would result in more relevant pluripotent
stem cells for modeling
human disease.
The excitement surrounding cellular
reprogramming and the possibility of federal funding for
human embryonic
stem cell (ESC) research in the US could be overshadowing another promising therapeutic source of
stem cells: those derived via parthenogenesis, some researchers say.
He is the principal investigator of an NCI - funded, multi-million-dollar Specialized Program of Research Excellence (SPORE) in ovarian cancer, and he is the principal investigator of a multi-million-dollar grant from the New York State
Stem Cell Science program (NYSTEM) to pioneer a novel strategy of reprogramming human mature T cells and hematopoietic stem cells for generating sustained attack against ovarian cancer in patie
Stem Cell Science program (NYSTEM) to pioneer a novel strategy of
reprogramming human mature T cells and hematopoietic
stem cells for generating sustained attack against ovarian cancer in patie
stem cells for generating sustained attack against ovarian cancer in patients.
The first reports of the successful
reprogramming of adult
human cells back into so - called induced pluripotent
stem (iPS) cells, which by all appearances looked and acted liked embryonic...
Gladstone scientists study how
human skin cells can be
reprogrammed into induced pluripotent
stem (iPS) cells, and they are working to refine the production of these cells.
Created in 2005 through a collaboration between Inserm — National Institute of Health and Medical Research — and AFM - Telethon — French Association against Myopathies — I -
Stem is the largest French laboratory for research and development dedicated to human pluripotent stem cells, of embryonic origin or obtained by reprogramming g
Stem is the largest French laboratory for research and development dedicated to
human pluripotent
stem cells, of embryonic origin or obtained by reprogramming g
stem cells, of embryonic origin or obtained by
reprogramming gene.
The research, described in the journal
Stem Cells under the title «
Reprogramming Postnatal
Human Epidermal Keratinocytes Toward Functional Neural Crest Fates,» was supported by grants from the National Institutes of Health.
Direct conversion or
reprogramming of
human postnatal cells into endothelial cells (ECs), bypassing
stem or progenitor cell status, is crucial for regenerative medicine, cell therapy, and pathophysiological investigation but has remained largely unexplored.
In late 2007, scientists identified conditions that would allow some specialized adult
human cells to be
reprogrammed genetically to assume a
stem cell - like state.
In their study, published alongside Deng's in Cell
Stem Cell, the researchers converted
human fibroblasts to neurons using a combination of seven molecules applied to the cells for one week, followed by a three - week maturation period in a medium containing two of the
reprogramming molecules and one other molecule.
Human pluripotent stem cells derived from embryos (human Embryonic Stem Cells or hESCs) or generated by direct reprogramming of somatic cells (human Induced Pluripotent Stem Cells or hiPSCs) can proliferate almost indefinitely in vitro while maintaining the capacity to differentiate into a broad diversity of cell t
Human pluripotent
stem cells derived from embryos (human Embryonic Stem Cells or hESCs) or generated by direct reprogramming of somatic cells (human Induced Pluripotent Stem Cells or hiPSCs) can proliferate almost indefinitely in vitro while maintaining the capacity to differentiate into a broad diversity of cell ty
stem cells derived from embryos (
human Embryonic Stem Cells or hESCs) or generated by direct reprogramming of somatic cells (human Induced Pluripotent Stem Cells or hiPSCs) can proliferate almost indefinitely in vitro while maintaining the capacity to differentiate into a broad diversity of cell t
human Embryonic
Stem Cells or hESCs) or generated by direct reprogramming of somatic cells (human Induced Pluripotent Stem Cells or hiPSCs) can proliferate almost indefinitely in vitro while maintaining the capacity to differentiate into a broad diversity of cell ty
Stem Cells or hESCs) or generated by direct
reprogramming of somatic cells (
human Induced Pluripotent Stem Cells or hiPSCs) can proliferate almost indefinitely in vitro while maintaining the capacity to differentiate into a broad diversity of cell t
human Induced Pluripotent
Stem Cells or hiPSCs) can proliferate almost indefinitely in vitro while maintaining the capacity to differentiate into a broad diversity of cell ty
Stem Cells or hiPSCs) can proliferate almost indefinitely in vitro while maintaining the capacity to differentiate into a broad diversity of cell types.
By
reprogramming human skin cells and other cells from patients with neurologic and psychiatric diseases into induced pluripotent
stem cells (iPSCs) and induced neurons (iN), his work seeks to decipher the progression and mechanisms that lead to brain cell dysfunction.
To overcome these hurdles, Bhatia and her team
reprogrammed human skin cells into induced pluripotent
stem cells (iPSCs)-- embryonic - like
stem cells capable of turning into other specific cell types relevant for studying a particular disease.
However, this is inefficient and has a low throughput method so I aim to use our growing knowledge of epigenetics to devise strategies for «
reprogramming»
human somatic cells towards a
stem cell like phenotype.