Generation of Transgene-Free Lung Disease-Specific Human Induced Pluripotent Stem Cells Using a Single Excisable Lentiviral Stem Cell Cassette Stem Cells - Tập 28 Số 10 - Trang 1728-1740 - 2010
Aba Somers, Jyh‐Chang Jean, Cesar Sommer, Amel Omari, Christopher Ford, Jason A. Mills, Lei Ying, Andreia Gianotti Sommer, Brenden W. Smith, Robert Lafyatis, George Kroumpouzos, Daniel C. Chambers, Deborah L. French, Paul Gadue, George J. Murphy, Gustavo Mostoslavsky, Darrell N. Kotton
Abstract The development of methods to achieve efficient reprogramming of human
cells while avoiding the permanent presence of reprogramming transgenes
represents a critical step toward the use of induced pluripotent stem cells
(iPSC) for clinical purposes, such as disease modeling or reconstituting
therapies. Although several methods exist for generating iPSC free of
reprogramming transgenes from... hiện toàn bộ
Recombinant Vitronectin Is a Functionally Defined Substrate That Supports Human Embryonic Stem Cell Self-Renewal via αVβ5 IntegrinStem Cells - Tập 26 Số 9 - Trang 2257-2265 - 2008
Stefan Braam, Laura Zeinstra, Sandy H.M. Litjens, Dorien Ward‐van Oostwaard, Stieneke van den Brink, Linda van Laake, Franck Lebrin, Peter Kats, Ron Hochstenbach, Robert Passier, Arnoud Sonnenberg, Christine L. Mummery
AbstractDefined growth conditions are essential for many applications of human
embryonic stem cells (hESC). Most defined media are presently used in
combination with Matrigel, a partially defined extracellular matrix (ECM)
extract from mouse sarcoma. Here, we defined ECM requirements of hESC by
analyzing integrin expression and ECM production and determined integrin
function using blocking antibod... hiện toàn bộ
Polycistronic Lentiviral Vector for “Hit and Run” Reprogramming of Adult Skin Fibroblasts to Induced Pluripotent Stem CellsStem Cells - Tập 27 Số 5 - Trang 1042-1049 - 2009
Chia‐Wei Chang, Yi-Shin Lai, Kevin M. Pawlik, Kaimao Liu, Chengzhen Sun, Chao Li, Trenton R. Schoeb, Tim M. Townes
Abstract We report the derivation of induced pluripotent stem (iPS) cells from
adult skin fibroblasts using a single, polycistronic lentiviral vector encoding
the reprogramming factors Oct4, Sox2, and Klf4. Porcine teschovirus-1 2A
sequences that trigger ribosome skipping were inserted between human cDNAs for
these factors, and the polycistron was subcloned downstream of the elongation
factor 1 al... hiện toàn bộ
Laminin-511 but Not -332, -111, or -411 Enables Mouse Embryonic Stem Cell Self-Renewal In VitroStem Cells - Tập 26 Số 11 - Trang 2800-2809 - 2008
Anna Domogatskaya, Sergey Rodin, Ariel Boutaud, Karl Tryggvason
Abstract We tested specific laminin (LN) isoforms for their ability to serve as
substrata for maintaining mouse embryonic stem (ES) cells pluripotent in vitro
in the absence of leukemia inhibitory factor or any other differentiation
inhibitors or feeder cells. Recombinant human LN-511 alone was sufficient to
enable self-renewal of mouse ES cells for up to 169 days (31 passages). Cells
cultured on ... hiện toàn bộ
BMP4 Promotes EMT and Mesodermal Commitment in Human Embryonic Stem Cells via SLUG and MSX2Stem Cells - Tập 32 Số 3 - Trang 636-648 - 2014
Anne Richter, Lena Valdimarsdottir, Helga Eyja Hrafnkelsdóttir, Johann Frimann Runarsson, Arna Rún Ómarsdóttir, Dorien Ward‐van Oostwaard, Christine L. Mummery, Guðrún Valdimarsdóttir
AbstractBone morphogenetic proteins (BMPs) initiate differentiation in human
embryonic stem cells (hESCs) but the exact mechanisms have not been fully
elucidated. We demonstrate here that SLUG and MSX2, transcription factors
involved in epithelial–mesenchymal transitions, essential features of
gastrulation in development and tumor progression, are important mediators of
BMP4-induced differentiatio... hiện toàn bộ
Role and Function of Matrix Metalloproteinases in the Differentiation and Biological Characterization of Mesenchymal Stem CellsStem Cells - Tập 24 Số 3 - Trang 475-481 - 2006
Ferdinando Mannello, Gaetana A. Tonti, Gian Paolo Bagnara, Stefano Papa
Abstract Matrix metalloproteinases (MMPs), known as matrixins, are Ca- and
Zn-dependent endoproteinases involved in a wide variety of developmental and
disease-associated processes, proving to be crucial protagonists in many
physiological and pathological mechanisms. The ability of MMPs to alter, by
limited proteolysis and through the fine control of tissue inhibitors of
metalloproteinases, the ac... hiện toàn bộ