نتایج جستجو برای: feeder cells

تعداد نتایج: 1387280  

2013
Despina Soteriou Banu Iskender Adam Byron Jonathan D. Humphries Simon Borg-Bartolo Marie-Claire Haddock Melissa A. Baxter David Knight Martin J. Humphries Susan J. Kimber

Human embryonic stem cells (hESCs) are pluripotent cells that have indefinite replicative potential and the ability to differentiate into derivatives of all three germ layers. hESCs are conventionally grown on mitotically inactivated mouse embryonic fibroblasts (MEFs) or feeder cells of human origin. In addition, feeder-free culture systems can be used to support hESCs, in which the adhesive su...

Journal: :Mechanisms of Development 2009
Enid Yi Ni Lam Kathy Crosier Chris Hall Phil Crosier Maria Vega Flores

STAT3 belongs to the signal transducers and activators of transcription (STAT) family. Activation of STAT3 via the LIF receptor/ gp130 signaling complex allows the derivation and propagation of embryonic stem (ES) cells from mouse blastocysts in the presence of feeders. Intriguingly, ES cells have not been established from some strains of mice, and not at all from rats under the LIF/feeder cond...

Journal: :Human reproduction 2009
Christian Unger Shuping Gao Marie Cohen Marisa Jaconi Rosita Bergstrom Frida Holm Amparo Galan Eva Sanchez Olivier Irion Jean Bernard Dubuisson Marc Giry-Laterriere Patrick Salmon Carlos Simon Outi Hovatta Anis Feki

BACKGROUND Feeder cells are frequently used for the early-stage of derivation and culture of human embryonic stem cell (hESC) lines. METHODS We established a conditionally immortalized human foreskin fibroblast line that secreted basic fibroblast growth factor (bFGF). These cells were used as feeder cells for hESC culture and induced pluripotent stem (iPS) cell derivation and expansion. This ...

Journal: :Mechanisms of Development 2009
Qi-Long Ying

STAT3 belongs to the signal transducers and activators of transcription (STAT) family. Activation of STAT3 via the LIF receptor/ gp130 signaling complex allows the derivation and propagation of embryonic stem (ES) cells from mouse blastocysts in the presence of feeders. Intriguingly, ES cells have not been established from some strains of mice, and not at all from rats under the LIF/feeder cond...

Journal: :iranian journal of basic medical sciences 0
zahra sadat hashemi department of medical biotechnology, faculty of medical sciences, tarbiat modares university, tehran, iran mahdi forouzandeh moghadam department of medical biotechnology, faculty of medical sciences, tarbiat modares university, tehran, iran masoud soleimani department of hematology, faculty of medical sciences, tarbiat modares university, tehran, iran

objective(s): ex vivo expansion of hematopoitic stem cells is an alternative way to increase umbilical cord blood (ucb)-cd34+ cells for bone marrow transplantation. for this purpose demineralized bone matrix (dbm) and mineralized bone allograft (mba) as two scaffolds based on bone matrix and stem cell niche, were simultaneously used to enhance the effect of human mesenchymal progenitor cells (m...

A Tabatabaee J Movaffagh MH Amoozegar N Amiri SA SajadiTabassi

Background: Keratinocyte stem cell is one of the adult stem cells that inhabits the skin and contributes to skin function and renewal. Adult stem cells are best defined by their capacity to self-renew, and to maintain tissue function for a long period of time. These findings indicate the importance of these cells for clinical applications including regenerative medicine, tissue engineering and ...

2011
Thomas Stelzer Tina Marwood Cindy Neeley

Background The promise of pluripotent stem cells lies in their ability to form any cell or tissue in the body. However, this promise requires a stable and reproducible method to grow the cells. Current methods rely on feeder cells or extracellular matrix proteins to cover the cultureware growth surface, and either manual selection or enzymatic dissociation in cell passaging and harvesting. This...

Journal: :Human molecular genetics 2008
Christian Unger Heli Skottman Pontus Blomberg M Sirac Dilber Outi Hovatta

Human embryonic stem cell (hESC) lines, after directed differentiation, hold the greatest potential for cell transplantation treatment in many severe diseases. Good manufacturing practice (GMP) quality, defined by both the European Medicines Agency and the Food and Drug Administration, is a requirement for clinical-grade cells, offering optimal defined quality and safety in cell transplantation...

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