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Proteomics of hepatocyte like cells differentiated from iPS cells

ABSTRACT: Proteomics and phosphoproteomics in hepatocyte like cells differentiated from iPS cells with gene mutation of V30M or Y114C.

ORGANISM(S): Homo Sapiens (human)

SUBMITTER: Hirofumi Jono

PROVIDER: PXD047155 | JPOST Repository | Fri Nov 22 00:00:00 GMT 2024

REPOSITORIES: jPOST

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			Action	DRS
	231002_Ctrl_1.raw	Raw
	231002_Ctrl_2.raw	Raw
	231002_Ctrl_3.raw	Raw
	231002_Ctrl_Phospho1.raw	Raw
	231002_V30M_1.raw	Raw

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Gene expression profile of human melanocytes derived from iPS cells

Project description:This experiment was designed to show the similarity among normal human epidermal melanocytes, melanocytes derived from human 3F-induced pluripotent stem (iPS) cells, and human 3F-iPS cells. Human 3F-iPS cells without c-myc were established and then differentiated into melanocytes. The differentiated cells were collected and the gene expression profile was compared to normal human epidermal melanocytes (NHEMs) and orginal 3F-iPS cells.

2010-08-26 | E-GEOD-23805 | biostudies-arrayexpress

RNA sequencing of enterocytes differentiated from human iPS cells

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NextGen Consortium: Globin Gene Expression in Sickle Cell Genotype-Specific iPS Cells

Project description:<p> <ol> <li>Implement an efficient, highly reproducible and 'scalable' system for the production of large numbers of sickle cell anemia-specific iPS cells (iPSC).</li> <li>Derive and characterize a novel, in vitro system for the production of an unlimited supply of erythroid lineage cells from the directed differentiation of 'clinical grade' transgene-free iPS cells; use this system to recapitulate erythroid-lineage ontogeny in vitro with the sequential development of primitive and definitive erythropoiesis, accompanied by the appropriate expression of stage-specific globin genes.</li> <li>Identify developmental gene expression profile differences between erythroid precursors that produce primarily HbF and those that produce primarily HbA or HbS.</li> <li>Determine the effects of the three known HbF major quantitative trait loci (QTL) on globin gene expression in disease-specific iPS cells during in vitro erythropoiesis.</li> <li>Search for novel HbF genetic modifiers associated with markedly elevated HbF levels found in sickle cell anemia patients naturally, or in response to hydroxyurea treatment, by examining gene expression profiles and mRNA sequence of their iPSC-derived erythroid cells.</li> <li>Develop and use a CRISPR-based gene editing platform to study the effect of novel HbF genetic modifiers, explore globin switching, and correct the HbS mutation in sickle iPSC lines.</li> </ol> </p>

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Genome-wide nucleosome positioning maps from undifferentiated human iPS cells (hIPS) and iPS cells differentiated to neural progenitor cells (NPC).

Project description:We report the application of MNase-seq (Kent, Adams et al. 2011) to construct genome-wide nucleosome maps from human cells. To date, genome-wide changes in chromatin structure that occur during development in human cells have not been investigated widely. We have constructed and compared genome-wide chromatin maps from undifferentiated human iPS cells and and iPS cells differentiated to neural progenitor cells (NPC).

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Project description:Hepatocyte-like cells differentiated from human iPS cells are expected to be utilized in pharmaceutical research and regenerative medicine. Recently, various culture methods for human iPS cell maintenance have been developed. However, it is not well known whether human iPS cell maintenance method affects hepatic differentiation potency. In this study, we cultured human iPS cells using four maintenance methods: ReproStem medium with feeder cells (mouse embryonic fibroblasts), AK02N medium with iMatrix-511 (E8 fragments of laminin511), Essential 8 medium with Vitronectin N (N-terminal domain of vitronectin), TeSR-E8 medium with Vitronectin XF (xeno-free vitronectin). Then, these human iPS cells were differentiated into the hepatocyte-like cells. Interestingly, the gene expression levels of definitive endoderm markers in the definitive endoderm cells generated from human iPS cells cultured with ReproStem or TeSR-E8 medium were higher than those in other groups. The gene expression level of foregut marker, HHEX, in the definitive endoderm cells generated from human iPS cells cultured with ReproStem medium was higher than that in other groups. Consistently, the expression levels of hepatocyte markers, albumin and urea secretion capacity, and CYP3A4 activity in the hepatocyte-like cells generated from human iPS cells cultured with ReproStem medium were higher than those in other groups. Our data indicated that the most suitable human iPS cell maintenance method for efficient hepatic differentiation was the on-feeder method which uses mouse embryonic fibroblasts, but not feeder-free methods. In conclusion, human iPS cell maintenance method largely affects hepatic differentiation potency.

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