https://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/49782/1/Yamanaka_Cell_131_5.pdf

Induction of Pluripotent Stem Cells from Adult Human Fibroblasts by Defined Factors

Human blastocyst-derived, pluripotent cell lines are described that have normal karyotypes, express high levels of telomerase activity, and express cell surface markers that characterize primate embryonic stem cells but do not characterize other early lineages. After undifferentiated proliferation in vitro for 4 to 5 months, these cells still maintained the developmental potential to form trophoblast and derivatives of all three embryonic germ layers, including gut epithelium (endoderm); cartilage, bone, smooth muscle, and striated muscle (mesoderm); and neural epithelium, embryonic ganglia, and stratified squamous epithelium (ectoderm). These cell lines should be useful in human developmental biology, drug discovery, and transplantation medicine.

Embryonic Stem Cell Lines Derived from Human Blastocysts

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Modern Applied Statistics With S

2 1 The innovative transport systems and the CityMobil project 10 1.1 The research questions 10 2 The state of art in the field of automatic transport systems 12 2.1 Case studies and demand studies for innovative transport systems 12 3 The design and implementation of surveys 14 3.1 Definition of experimental design 14 3.2 Questionnaire design and delivery 16 3.3 First analyses on the collected sample 18 4 Calibration of Logit Multionomial demand models 21 4.1 Methodology 21 4.2 Calibration of the “full” model. 22 4.3 Calibration of the “final” model 24 4.4 The demand analysis through the final Multinomial Logit model 25 5 The analysis of interaction between the demand and socioeconomic attributes 31 5.1 Methodology 31 5.2 Application of Mixed Logit models to the demand 31 5.3 Analysis of the interactions between demand and socioeconomic attributes through Mixed Logit models 32 5.4 Mixed Logit model and interaction between age and the demand for the CTS 38 5.5 Demand analysis with Mixed Logit model 39 6 Final analyses and conclusions 45 6.1 Comparison between the results of the analyses 45 6.2 Conclusions 48 6.3 Answers to the research questions and future developments 52

The European commission

https://www.ics.uci.edu/~xhx/courses/references/Young_ES_regulator_cell06.pdf

Core transcriptional regulatory circuitry in human embryonic stem cells.

High-throughput karyotyping of human pluripotent stem cells.

The Wnt gene family encodes a series of conserved glycoproteins that regulate pattern formation during embryogenesis, in a variety of tissues including the nervous system. As with other genes that control embryonic cell differentiation, members of the Wnt family have also been implicated in tumourigenesis. To search for Wnt genes involved in human teratocarcinomas, with a possible role in human embryogenesis, we used RT-PCR primed with degenerate oligonucleotides to analyse mRNA from differentiating cultures of the pluripotent human embryonal carcinoma (EC) cell line NTERA-2. NTERA-2 EC cells differentiate into neurons and other cell types when induced with retinoic acid. Wnt gene expression was not detected in the undifferentiated EC cells, but Wnt-related PCR fragments were amplified from differentiating cultures, 4-14 days after induction with retinoic acid. The RT-PCR products were composed primarily of DNA fragments corresponding to the recently identified human Wnt-13 gene. No other Wnt-related genes were identified. Northern analysis confirmed induction of Wnt-13 as a 2.4 kb mRNA during the early phases of retinoic acid-induced differentiation, and during differentiation along a non-neural pathway induced by hexamethylene bisacetamide (HMBA), but not in the terminally differentiated neurons. Wnt-13 remained expressed in non-neural differentiated NTERA-2 cells, even several weeks after the induction of differentiation. The time course of induction, its induction by HMBA, and its persistence in differentiated cells indicate that Wnt-13 expression is not dependent upon direct activation by retinoic acid. Wnt-13 was not detected, or only detected at low levels, in other human EC cells. However, it was found to be expressed at a high level in one malignant teratoma cell line, 577MF, that does not exhibit an EC phenotype although it was derived from a testicular teratocarcinoma. At least two members of the human frizzled gene family, thought to encode receptors for Wnt proteins, were also expressed in the NTERA-2 cells, suggesting the presence of a mechanism by which endogenously expressed Wnt-13 could modulate the histogenesis of teratocarcinomas by mediating interactions between sub-populations of differentiating EC cells. We note that Wnt-13 maps to chromosome 1p13, a region reported to be subject to relatively frequent loss of heterozygosity in germ cell tumours. Further analysis indicated that 465 bp of the published Wnt-13 sequence, within the predicted 5' UTR, is incorrect and is possibly derived from a human mitochondrial DNA sequence.

Human Wnt-13 is developmentally regulated during the differentiation of NTERA-2 pluripotent human embryonal carcinoma cells

Australopithecus: grade or clade?

We have used flow microfluorimetry to investigate quantitatively the expression of HLA-A, B and C antigens, and beta 2 microglobulin, by cell lines derived from human teratocarcinomas, Although low levels of these cell surface molecules were expressed by all the lines examined, there was no evidence of discrete HLA-A, B, C/beta 2-microglobulin positive and negative subpopulations in any cultures. In contrast, using similar techniques, no murine embryonal carcinoma cell line was found to express the homologous H-2 antigens, It is suggested that human embryonal carcinoma cells may differ from their mouse counterparts by expressing low levels of major histocompatibility antigens

The expression of MHC antigens by human teratocarcinoma derived cell lines.

Human immunodeficiency virus (HIV) replicates in differentiated but not undifferentiated NTERA-2 human embryonal carcinoma cells; neither cell type expresses CD4. Susceptibility of the differentiated cells is enhanced by coinfection with cytomegalovirus. HIV infection induces lactoseries glycolipids, suggesting a mechanism whereby HIV might interfere with normal embryogenesis.

Differentiation of human embryonal carcinoma cells induces human immunodeficiency virus permissiveness which is stimulated by human cytomegalovirus coinfection.

Peter W. Andrews

Papers

High-throughput karyotyping of human pluripotent stem cells.

Human Wnt-13 is developmentally regulated during the differentiation of NTERA-2 pluripotent human embryonal carcinoma cells

Australopithecus: grade or clade?

The expression of MHC antigens by human teratocarcinoma derived cell lines.

Differentiation of human embryonal carcinoma cells induces human immunodeficiency virus permissiveness which is stimulated by human cytomegalovirus coinfection.