The generation of induced pluripotent stem cells from
adult fibroblast cells to create iPS cells.
And so again, kind of using what the embryo normally does to develop but transferring that into
an adult fibroblast and making that tissue - and it's very, very fascinating research.
«Induction of Pluripotent Stem Cells From Mouse Embryonic and
Adult Fibroblast Cultures by Defined Factors,» by Kazutoshi Takahashi and Shinya Yamanaka, Cell, Aug. 25, 2006.
The novel reprogramming approach employed the retroviral transduction of Oct4, Sox2, and Klf4 in mouse embryonic and
adult fibroblasts followed by treatment with the GSK3β Inhibitor BIO and the pleiotropic cytokine Oncostatin M (OSM).
Embryonic cardiac fibroblasts promote myocyte proliferation, while
adult fibroblasts promote myocyte hypertrophy,» said Masaki Ieda, MD, PhD, Gladstone postdoctoral fellow and lead author on the study.
It has also been reported that Kap1 controls endogenous retroelements during early embryonic development and in embryonic stem cells but not in
adult fibroblasts [45].
Not exact matches
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.
The research team took skin
fibroblast tissue from
adult mole - rats and reprogrammed the cells to revert to pluripotent stem cells.
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.
Imagine researchers» excitement, then, when Kyoto University's Shinya Yamanaka reported last year that his group had created embryolike cells directly, without transferring chromosomes, simply by injecting mouse
fibroblast cells with four genes that are active in embryonic cells but not in
adult ones.
A structure containing interstitial
fibroblast - like cells developed within the WAT in sexually immature migratory
adults.
First, the MimEX ™ Cell Plating Procedure is used to maintain a uniform irradiated
fibroblast monolayer for the rapid clonal expansion and efficient differentiation of tissue - specific
adult epithelial stem cells.
Troubleshooting
fibroblast contamination when isolating
adult stem cells from biopsy tissue
Induction of stem cell gene expression in
adult human
fibroblasts without transgenes.
Having shown that it's possible to directly reprogram mouse
fibroblasts (in a dish and in
adult hearts) and also human heart
fibroblasts in a dish, Dr. Srivastava's group is testing the recipe in pigs, whose heart size and physiology is closer to our own.
Pfisterer U, Wood J, Nihlberg K, Hallgren O, Bjermer L, Westergren - Thorsson G, Lindvall O, Parmar M.Efficient induction of functional neurons from
adult human
fibroblasts
Yamanaka's group used human
adult dermal
fibroblasts and induced them to become iPSCs, appearing and functioning like hESCs, by having them express the same proteins as he used with mouse cells: Oct - 4, Sox2, Klf4, and c - Myc (Takahashi et al., 2007).
They made
adult fibroblastic mouse cells become essentially mouse embryonic stem cells, in appearance and function, by forcing the
fibroblasts to express four key embryonic stem cell factors: Oct - 4, Sox2, Klf4, and c - Myc.
Takahashi, K., Tanabe, K., Ohnuki, M., Narita, M., Ichisaka, T., Tomoda, K., and Yamanaka, S. Induction of Pluripotent Stem Cells from
Adult Human
Fibroblasts.
By observing the cells in this system, they found that the embryonic cardiac
fibroblasts promoted cell division by the cardiomyocytes more efficiently than
adult cardiac
fibroblasts.
«We found a major difference in the function of embryonic and
adult cardiac
fibroblasts.
By this way, they unravelled the mechanisms of cellular fate during developmental growth of dermal skin, and especially investigated how
fibroblast of the upper and lower dermal lineages contribute to the wound healing in
adult skin.
Pluripotent stem cells can be generated from
adult mouse - tail tip
fibroblasts and
adult human
fibroblasts by the retrovirus - mediated transfection of four transcription factors, Oct3 / 4, Sox2, c - Myc, and Klf4.
Fibroblast growth factor - 2 activates a latent neurogenic program in neural stem cells from diverse regions of the
adult CNS.
The
adult human heart is only half muscle; the other half is made of support cells called
fibroblasts that help repair wounds and form scars around damaged tissue.
We derived a
fibroblast line from a skin biopsy from a healthy
adult male (HUF1)(Figure 1A) and used immunocytochemistry to characterize the expression of cell surface markers commonly expressed on pluripotent stem cells (Figure 1B, C and D).
(A — B) Primary
adult human
fibroblast line HUF1 (A) Phase contrast image (B) Immunocytochemical detection of SSEA3 expression (green).
Eight additional primary
adult human
fibroblast lines were derived from skin biopsies and immunoassayed.
Methods to enhance the reprogramming efficiency would significantly increase the feasibility of this approach, especially for cell types which tend to be more difficult to reprogram, such as the primary
adult human
fibroblasts used in this study.