Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2004-10-25
pubmed:abstractText
Differentiation of human embryonic stem cells (hESCs) can be instigated through the formation of embryo-like aggregates in suspension, termed human embryoid bodies (hEBs). Controlling cell aggregation and agglomeration during hEBs formation has a profound effect on the extent of cell proliferation and differentiation. In a previous work, we showed that control over hEBs formation and differentiation can be achieved via cultivation of hESC suspensions in a rotating bioreactor system. We now report that hEBs can be generated directly from hESC suspensions within three-dimensional (3D) porous alginate scaffolds. The confining environments of the alginate scaffold pores enabled efficient formation of hEBs with a relatively high degree of cell proliferation and differentiation; encouraged round, small-sized hEBs; and induced vasculogenesis in the forming hEBs to a greater extent than in static or rotating cultures. We therefore conclude that differentiation of hEBs can be induced and directed by physical constraints in addition to chemical cues.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0006-3592
pubmed:author
pubmed:copyrightInfo
Copyright 2004 Wiley Periodicals, Inc.
pubmed:issnType
Print
pubmed:day
5
pubmed:volume
88
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
313-20
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:15486935-Alginates, pubmed-meshheading:15486935-Bioartificial Organs, pubmed-meshheading:15486935-Biocompatible Materials, pubmed-meshheading:15486935-Cell Culture Techniques, pubmed-meshheading:15486935-Cell Differentiation, pubmed-meshheading:15486935-Cell Line, pubmed-meshheading:15486935-Cell Proliferation, pubmed-meshheading:15486935-Cell Size, pubmed-meshheading:15486935-Cell Survival, pubmed-meshheading:15486935-Embryo, Mammalian, pubmed-meshheading:15486935-Embryonic Development, pubmed-meshheading:15486935-Glucuronic Acid, pubmed-meshheading:15486935-Hexuronic Acids, pubmed-meshheading:15486935-Humans, pubmed-meshheading:15486935-Materials Testing, pubmed-meshheading:15486935-Membranes, Artificial, pubmed-meshheading:15486935-Neovascularization, Physiologic, pubmed-meshheading:15486935-Porosity, pubmed-meshheading:15486935-Stem Cells, pubmed-meshheading:15486935-Tissue Engineering
pubmed:year
2004
pubmed:articleTitle
Three-dimensional porous alginate scaffolds provide a conducive environment for generation of well-vascularized embryoid bodies from human embryonic stem cells.
pubmed:affiliation
Biotechnology Interdisciplinary Unit, Technion-Israel Institute of Technology, Haifa, Israel.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't, Evaluation Studies