Abstract:
:We determined whether cartilage could be engineered from mesenchymal progenitor cells (MPCs) normally found in amniotic fluid. Mesenchymal amniocytes were isolated from ovine amniotic fluid samples (n = 5) and had their identity confirmed by immunocytochemistry. Cells were expanded and then cultured as micromass pellets (n = 5) in a chondrogenic medium containing transforming growth factor-beta2 (TGF-beta2) and insulin growth factor-1 (IGF-1) for 6-12 weeks. Pellets derived from fetal dermal fibroblasts (n = 4) were cultured under identical conditions. Additionally, expanded mesenchymal amniocytes were seeded onto biodegradable polyglycolic acid scaffolds (n = 5) and maintained in the same chondrogenic medium within a rotating bioreactor for 10-15 weeks. Engineered specimens were analyzed quantitatively and compared with native fetal hyaline cartilage samples (n = 5). Statistical analysis was by the unpaired Student's t-test (p < 0.05). The isolated cells stained positively for vimentin and cytokeratins-8 and -18, but negatively for CD31. Micromass pellets derived from mesenchymal amniocytes exhibited chondrogenic differentiation by both standard and matrix-specific staining. In contrast, these findings could not be replicated in dermal fibroblast-based pellets. The engineered constructs derived from mesenchymal amniocytes similarly displayed histological evidence of chondrogenic differentiation and maintained their original size and three-dimensional architecture. Quantitative assays of the engineered constructs revealed lower concentrations of collagen type II, but similar amounts of glycosaminoglycans, elastin, and DNA, when compared to native fetal hyaline cartilage. We conclude that mesenchymal amniocytes can be used for the engineering of cartilaginous tissue in vitro. Cartilage engineering from the amniotic fluid may become a practical approach for the surgical treatment of select congenital anomalies.
journal_name
Stem Cells Devjournal_title
Stem cells and developmentauthors
Kunisaki SM,Jennings RW,Fauza DOdoi
10.1089/scd.2006.15.245subject
Has Abstractpub_date
2006-04-01 00:00:00pages
245-53issue
2eissn
1547-3287issn
1557-8534journal_volume
15pub_type
杂志文章abstract::Several reports have shown that the expression of Sca-1 (Ly-6A/E), the most widely used murine hematopoietic stem cell marker, is restricted to blood vessels in several nonhematopoietic tissues. However, there is no information about which components are expressing Sca-1, and what the role of Sca-1 could be. Because w...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2004.13.528
更新日期:2004-10-01 00:00:00
abstract::My concept of cell differentiation involves genetic information from DNA being transcribed into mRNA proteins-morphogenes (mRNAs+ homeodomain proteins)-and stored in the ovoplasm as maternal inheritance, or cytoplasmic genetic memory. Feedback mechanism(s) allow these morphogenes to selectively unlock new genes, regul...
journal_title:Stem cells and development
pub_type: 社论
doi:10.1089/scd.2007.0139
更新日期:2008-10-01 00:00:00
abstract::Although amniotic fluid cells can differentiate into several mesenchymal lineages and have been proposed as a valuable therapeutic cell source, their ability to undergo terminal neuronal differentiation remains a cause of controversy. The aim of this study was to investigate the neuronal differentiation ability of the...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2011.0281
更新日期:2012-03-20 00:00:00
abstract::The hedgehog (Hh) signaling pathway plays fundamental roles during embryonic development and tumorigenesis. Previously, we have shown that ablation of the tumor suppressor and negative regulator, Suppressor of fused (Sufu), within this pathway causes embryonic lethality around E9.5 in the mouse. In this study, we exam...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2015.0050
更新日期:2015-11-01 00:00:00
abstract::Herein we review recent data that support host tolerance of allogeneic adult mesenchymal stem cells (MSC). Evidence is emerging that donor MSC deploy a very powerful array of mechanisms that allow escape from host allogeneic responses. These mechanisms include limited expression of alloantigen by the stem cell and cel...
journal_title:Stem cells and development
pub_type: 杂志文章,评审
doi:10.1089/scd.2005.14.252
更新日期:2005-06-01 00:00:00
abstract::Expression of the transcription factor Snail is required for normal vasculogenesis in the developing mouse embryo. In addition, tumors expressing Snail have been associated with a more malignant phenotype, with both increased invasive properties and angiogenesis. Although the relationship between Snail and vasculogene...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2011.0194
更新日期:2012-01-20 00:00:00
abstract::Although the pluripotent and proliferative capacity of embryonic germ (EG) cells is thought to be equivalent to that of embryonic stem (ES) cells, there has been far less attention focused on the potential use of EG cells for applications in developing novel strategies of tissue transplantation in the treatment of deg...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2008.0383
更新日期:2010-02-01 00:00:00
abstract::The paired type homeobox 6 (Pax6) transcription factor (TF) regulates multiple aspects of neural stem cell (NSC) and neuron development in the embryonic central nervous system. However, less is known about the role of Pax6 in the maintenance and differentiation of adult NSCs and in adult neurogenesis. Using the +/Sey(...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2014.0058
更新日期:2014-12-01 00:00:00
abstract::Cell therapy is a promising novel option for treatment of cardiovascular disease. Because the role of bone marrow-derived circulating progenitor cells (BM-CPCs) after cell therapy is less clear, we analyzed in this randomized, controlled study the influence of intracoronary autologous freshly isolated bone marrow cell...
journal_title:Stem cells and development
pub_type: 杂志文章,随机对照试验
doi:10.1089/scd.2010.0373
更新日期:2011-09-01 00:00:00
abstract::The aim of stem cell therapy after cardiac injury is to replace damaged cardiac tissue. Human cardiac progenitor cells (CPCs) represent an interesting cell population for clinical strategies to treat cardiac disease and human CPC-specific antibodies would aid in the clinical implementation of cardiac progenitor-based ...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2017.0048
更新日期:2017-11-01 00:00:00
abstract::Bone marrow-derived mesenchymal stem cells (MSCs) possess multilineage differentiation potential and can be used for the treatment of diabetic heart failure. However, hyperglycemia can affect the function of MSCs adversely and merits the requirement for a strategy to correct this anomaly. MSCs were isolated from the t...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2009.0397
更新日期:2011-01-01 00:00:00
abstract::Misexpression of the double homeodomain protein DUX4 in muscle is believed to cause facioscapulohumeral muscular dystrophy (FSHD). Although strategies are being devised to inhibit DUX4 activity in FSHD, there is little known about the normal function of this protein. Expression of DUX4 has been reported in pluripotent...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0643
更新日期:2013-09-01 00:00:00
abstract::Phenotypic guidance of embryonic stem (ES) cell fate is paramount if these cells are to be used for tissue repair and regeneration. Our objective was to compare two different cell culture feeders and their effect on proliferation, apoptosis, and differentiation of human (h) ES cells. HSF-6 hES cells were grown in Knoc...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2006.0109
更新日期:2007-06-01 00:00:00
abstract::Bone marrow human mesenchymal stem cells (hMSCs) are known to survive in serum-free media, when most normal somatic cells do not survive. We found that the endogenously-activated bone morphogenetic protein (BMP) pathway is involved in this cellular behavior. Under this culture condition, phosphorylated Smad1 (PSmad1),...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2009.0020
更新日期:2009-11-01 00:00:00
abstract::Periodontium is consisted of root cementum, bone lining the tooth socket, gingiva facing the tooth, and periodontal ligament (PDL). Its primary functions are support of the tooth and protection of tooth, nerve, and blood vessels from injury by mechanical loading. Severe periodontitis induces the destruction of periodo...
journal_title:Stem cells and development
pub_type: 杂志文章,评审
doi:10.1089/scd.2019.0031
更新日期:2019-08-01 00:00:00
abstract::Lymphedema is a medically irreversible condition for which currently conservative and surgical therapies are either ineffective or impractical. The potential use of progenitor and stem cell-based therapies has offered a paradigm that may provide alternative treatment options for lymphatic disorders. Moreover, basic re...
journal_title:Stem cells and development
pub_type: 杂志文章,评审
doi:10.1089/scd.2014.0390
更新日期:2015-02-01 00:00:00
abstract::In the central nervous system (CNS), generation of phenotypic diversity within the neuronal lineage is precisely regulated in a spatial and temporal fashion. Neural basic helix-loop-helix (bHLH) transcription factors are cell intrinsic factors that control commitment to neuronal lineage and play an important role in n...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2006.0115
更新日期:2007-08-01 00:00:00
abstract::Bronchopulmonary dysplasia (BPD), the main complication of extreme prematurity, has lifelong consequences for lung health. Mesenchymal stromal cells (MSCs) prevent lung injury in experimental BPD in newborn rodents when given in the immediate neonatal period. Whether MSC therapy can restore normal lung growth after es...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2019.0116
更新日期:2020-03-15 00:00:00
abstract::Human embryonic stem cell (hESC)-derived natural killer (NK) cells are a promising source of antitumor lymphocytes for immunotherapeutics. They also provide a genetically tractable platform well suited for the study of antitumor immunotherapies in preclinical models. We have previously demonstrated the potency of hESC...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2012.0608
更新日期:2013-07-01 00:00:00
abstract::In recent years it has been hypothesized that cancer stem cells (CSCs) are the actual driving force of tumor formation, highlighting the need to specifically target CSCs to successfully eradicate cancer growth and recurrence. Particularly, the deregulation of physiological signaling pathways controlling stem cell prol...
journal_title:Stem cells and development
pub_type: 杂志文章,评审
doi:10.1089/scd.2015.0081
更新日期:2015-10-15 00:00:00
abstract::Resveratrol is a natural polyphenol antioxidant that has been shown to facilitate osteogenic differentiation. A recent breakthrough has demonstrated that ectopic expression of four genes is sufficient to reprogram murine and human fibroblasts into induced pluripotent stem (iPS) cells. However, the roles of resveratrol...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2009.0186
更新日期:2010-02-01 00:00:00
abstract::Bone morphogenetic protein-2 (BMP-2) is a novel differentiation factor that is capable of inducing osteoblast differentiation and bone formation, making it an attractive option in treatment of bone defects, fractures, and spine fusions. Inflammation, which was a common situation during bone healing, is recognized to i...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2013.0345
更新日期:2014-02-01 00:00:00
abstract::Multipotent stem/progenitor cells from bone marrow stroma (mesenchymal stromal cells or MSCs) were previously shown to enhance proliferation and differentiation of neural stem cells (NSCs) in vivo, but the molecular basis of the effect was not defined. Here coculturing human MSCs (hMSCs) with rat NSCs (rNSCs) was foun...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2009.0444
更新日期:2011-02-01 00:00:00
abstract::Humans and nonhuman primates (NHPs) are similar in size, behavior, physiology, biochemistry, structure and function of organs, and complexity of the immune system. Research on NHPs generates complementary data that bridge translational research from small animal models to humans. NHP models of human disease offer uniq...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2014.0374
更新日期:2014-12-01 00:00:00
abstract::The aryl hydrocarbon receptor (AhR) belongs to the basic helix-loop-helix family of DNA-binding proteins that play a role in the toxicity and carcinogenicity of certain chemicals. The most potent ligand of the AhR known is 2,3,7,8-tetracholorodibenzo-p-dioxin. We previously reported tetrachlorodibenzo-p-dioxin-induced...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2010.0333
更新日期:2011-05-01 00:00:00
abstract::Osteophytes are a distinct feature of osteoarthritis (OA). Their formation may be related to pluripotential cells in the periosteum responding to stimulus during OA. This study aimed to isolate stem cells from osteophyte tissues and to characterize their phenotype, proliferation, and differentiation potential, as well...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2007.0146
更新日期:2008-04-01 00:00:00
abstract::Stem cell-based therapy is a promising treatment for neurodegenerative diseases. In our laboratory, a novel protocol has been developed to induce bone marrow-derived mesenchymal stem cells (MSC) into neurotrophic factors- secreting cells (NTF-SC), thus combining stem cell-based therapy with the NTF-based neuroprotecti...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2008.0411
更新日期:2009-10-01 00:00:00
abstract::Extraembryonic endoderm (XEN) cells are stem cell lines derived from primitive endoderm cells of inner cell mass in blastocysts. These cells have self-renewal properties and differentiate into visceral endoderm (VE) and parietal endoderm (PE) of the yolk sac. Recently, it has been reported that XEN cells can contribut...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2017.0026
更新日期:2017-08-01 00:00:00
abstract::Aneuploidy is commonly seen in human preimplantation embryos, most particularly at the cleavage stage because of genome activation by third cell division. Aneuploid embryos have been used for the derivation of normal embryonic stem cell (ESC) lines and developmental modeling. This review addresses aneuploidies in huma...
journal_title:Stem cells and development
pub_type: 杂志文章,评审
doi:10.1089/scd.2013.0053
更新日期:2013-09-01 00:00:00
abstract::Liver transplantation is the only radical treatment for decompensated cirrhosis, but its use is limited owing to a shortage of donors; hence, there is an urgent need for new treatments. Previously, we developed a liver-regeneration therapy using autologous bone marrow-derived mesenchymal stem cells (BMSCs), which is u...
journal_title:Stem cells and development
pub_type: 杂志文章
doi:10.1089/scd.2020.0123
更新日期:2020-11-15 00:00:00