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.

Investigation of human embryogenesis has been almost totally limited to histological description. In view of the increased use of in vitro fertilization and cultivation of embryos for treatment of infertility (Steptoe and Edwards, 1978) and the largely unknown origins of many human birth defects, experimental approaches to understanding early human development are urgently required.

Human—Mouse Teratocarcinoma Hybrids

The use of stem cells for generating cell types suitable for therapy is dependent on understanding the mechanisms, and identifying biomarkers, that control cell fate into different lineages. In this study, we aimed to characterize the nuclear protein dynamics of NTERA-2 cells undergoing retinoic acid-induced differentiation. We focused specifically on the first six days of differentiation, to provide insight into the earliest differentiation events, and employed techniques to specifically monitor the nuclear proteome. Well-characterized gene expression markers were used to precisely stage cell differentiation across the experimental time course. A combination of the novel iTRAQ and ExacTag labeling technologies, together with LC-ESI tandem mass spectrometry, were then used to accurately measure nuclear protein expression changes occurring within these differentiation-staged cells. We report proteins that showed significantly altered expression over the first 6 days of differentiation. Extensive bioinformatic analysis was undertaken, resulting in the construction of a novel interactome network, which revealed the temporal dynamics of the nuclear protein network in the context of neuronal differentiation.

Nuclear proteome dynamics in differentiating embryonic carcinoma (NTERA-2) cells.

/pdf/hominoid-habitats-of-the-miocene-1apf9293oz.pdf

Hominoid habitats of the Miocene

F9 embryonal carcinoma (EC) cells were used as a model system to study endoderm formation during mammalian embryogenesis. F9 cells treated with retinoic acid (RA) or RA plus dibutyryl cyclic AMP (cAMP) were examined for the expression of stage-specific embryonic antigen-3 (SSEA-3), a cell surface marker of primitive and visceral endoderm. SSEA-3 was not detected by indirect immunofluorescence on the surface of undifferentiated stem cells; however, a subset of SSEA-3-positive cells appeared with time in culture, amounting to 20% of cells 10 days after plating. When cultured in the presence of RA, the percentage of SSEA-3-positive cells increased to 70% of cells 10 days after plating. In contrast, treatment of cells with RA plus cAMP yielded differentiated cells that were SSEA-3-negative. These SSEA-3-negative cells exhibited ultrastructural features of parietal yolk sac endoderm. In contrast, SSEA-3-positive cells appearing in cultures treated with RA alone exhibited ultrastructural features of primitive endoderm on day 3, switching to ultrastructural features of parietal endoderm on day 10. Cells with hybrid features, resembling both visceral and parietal yolk sac, were also seen. We suggest that differentiation of F9 EC cells into parietal yolk sac-like cells can occur along two distinct pathways: 1) direct under the combined influence of RA and cAMP; and 2) indirect, under the influence of RA alone, in which cells first differentiate into primitive endoderm. Parietal yolk sac-like cells induced through the latter pathway continue to express SSEA-3, a cell surface marker of primitive endoderm that is not normally found on parietal endodermal cells in vivo.

Embryonal carcinoma cells differentiate into parietal endoderm via an intermediate stage corresponding to primitive endoderm.

Three novel species-specific monoclonal antibodies 5.1.H, 8.7.D and 13.7.A raised against semi-purified detergent solubilized fractions of the Tera 1 embryonal carcinoma (EC) cell line are restricted in their in vitro distribution to undifferentiated human EC cell lines. Competition experiments have established that distinct antigenic specificities are seen by the 3 different monoclonal antibodies. All 3 antigens 5.1.H, 8.7.D and 13.7.A, defined by these monoclonal antibodies, undergo developmental regulation and cease to be expressed on Tera 2 clones 5 and 12 after retinoic-acid-induced differentiation and on LICR LON HT 39/7 cells after phorbol-ester-induced differentiation. These results taken together with the extremely limited in vivo tissue distribution of the defined antigens suggest that the 5.1.H, 8.7.D and 13.7.A monoclonal antibodies define distinct onco-foetal antigens.

Definition of three species-specific monoclonal antibodies recognizing antigenic structures present on human embryonal carcinoma cells which undergo modulation during in vitro differentiation.

Peter W. Andrews

Papers

Human—Mouse Teratocarcinoma Hybrids

Nuclear proteome dynamics in differentiating embryonic carcinoma (NTERA-2) cells.

Hominoid habitats of the Miocene

Embryonal carcinoma cells differentiate into parietal endoderm via an intermediate stage corresponding to primitive endoderm.

Definition of three species-specific monoclonal antibodies recognizing antigenic structures present on human embryonal carcinoma cells which undergo modulation during in vitro differentiation.