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https://www.readbyqxmd.com/read/28440498/differentiation-of-human-induced-pluripotent-stem-cells-in-william-s-e-initiation-medium-supplemented-with-3%C3%A2-bromopyruvate-and-2%C3%A2-deoxy%C3%A2-d%C3%A2-glucose
#1
Minoru Tomizawa, Fuminobu Shinozaki, Yasufumi Motoyoshi, Takao Sugiyama, Shigenori Yamamoto, Naoki Ishige
Hepatocyte selection medium (HSM) is deprived of glucose and supplemented with galactose, and is based on Leibovitz's‑15 (L15) medium. HSM may promote the differentiation of human induced pluripotent stem (iPS) cells towards hepatocyte lineage. These culture conditions result in increased expression of galactokinase (GALK)‑1 and GALK2. However, iPS cells do not survive in HSM. Two potential alternatives to glucose deprivation are treatment with 3‑bromopyruvate (3BP), an analogue of pyruvate, and 2‑deoxy‑d‑glucose (2DG), an analogue of glucose...
April 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28438707/contributions-of-the-parietal-cortex-to-increased-efficiency-of-planning-based-action-selection
#2
Jennifer Randerath, Kenneth Valyear, Benjamin A Philip, Scott H Frey
Response selection is foundational to adaptive behavior, and considerable attention has been devoted to investigating this behavior under conditions in which the mapping between stimuli and responses is fixed. Results from prior studies implicate the left supramarginal gyrus (SMg), premotor and prefrontal cortices, as well as the cerebellum in this essential function. Yet, many goal-directed motor behaviors have multiple solutions with flexible mappings between stimuli and responses whose solutions are believed to involve prospective planning...
April 21, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28437203/using-the-surprise-question-to-identify-those-with-unmet-palliative-care-needs-in-emergency-and-inpatient-settings-what-do-clinicians-think
#3
Samir A Haydar, Lisa Almeder, Lauren Michalakes, Paul K J Han, Tania D Strout
BACKGROUND: The surprise question (SQ), "Would you be surprised if this patient died within the next year?" is effective in identifying end-stage renal disease and cancer patients at high risk of death and therefore potentially unmet palliative care needs. Following implementation of the SQ in our acute care setting, we sought to explore hospital-based providers' perceptions of the tool. OBJECTIVES: To evaluate (1) providers' perceptions regarding the feasibility of SQ use in emergency and inpatient settings, (2) clinician perceptions regarding the utility of the SQ, and (3) barriers to SQ use...
February 16, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28434942/ipsc-derived-regulatory-dendritic-cells-inhibit-allograft-rejection-by%C3%A2-generating-alloantigen-specific-regulatory-t-cells
#4
Songjie Cai, Jiangang Hou, Masayuki Fujino, Qi Zhang, Naotsugu Ichimaru, Shiro Takahara, Ryoko Araki, Lina Lu, Ji-Mei Chen, Jian Zhuang, Ping Zhu, Xiao-Kang Li
Regulatory dendritic cell (DCregs)-based immunotherapy is a potential therapeutic tool for transplant rejection. We generated DCregs from murine induced pluripotent stem cells (iPSCs), which could remain in a "stable immature stage" even under strong stimulation. Harnessing this characteristic, we hypothesized that iPS-DCregs worked as a negative vaccine to generate regulatory T cells (Tregs), and induced donor-specific allograft acceptance. We immunized naive CBA (H-2K(k)) mice with B6 (H-2K(b)) iPS-DCregs and found that Tregs (CD4(+)CD25(+)FOXP3(+)) significantly increased in CBA splenocytes...
April 18, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28434791/neuronal-cells-derived-from-human-induced-pluripotent-stem-cells-as-a-functional-tool-of-melanocortin-system
#5
Nobuko Yamada-Goto, Yukari Ochi, Goro Katsuura, Yui Yamashita, Ken Ebihara, Michio Noguchi, Junji Fujikura, Daisuke Taura, Masakatsu Sone, Kiminori Hosoda, Paul E Gottschall, Kazuwa Nakao
BACKGROUND: The preparation of human neurons derived from human induced pluripotent stem (iPS) cells can serve as a potential tool for evaluating the physiological and pathophysiological properties of human neurons and for drug development. METHODS: In the present study, the functional activity in neuronal cells differentiated from human iPS cells was observed. RESULTS: The differentiated cells expressed mRNAs for classical neuronal markers (microtubule-associated protein 2, β-tubulin III, calbindin 1, synaptophysin and postsynaptic density protein 95) and for subunits of various excitatory and inhibitory transmitters (NR1, NR2A, NR2B, GABAA α1)...
April 7, 2017: Neuropeptides
https://www.readbyqxmd.com/read/28426026/generation-of-multipotent-induced-cardiac-progenitor-cells-from-mouse-fibroblasts-and-potency-testing-in-ex-vivo-mouse-embryos
#6
Pratik A Lalit, Adriana M Rodriguez, Karen M Downs, Timothy J Kamp
Here we describe a protocol to generate expandable and multipotent induced cardiac progenitor cells (iCPCs) from mouse adult fibroblasts using forced expression of Mesp1, Tbx5, Gata4, Nkx2.5 and Baf60c (MTGNB) along with activation of Wnt and JAK/STAT signaling. This method does not use iPS cell factors and thus differs from cell activation and signaling-directed (CASD) reprogramming to cardiac progenitors. Our method is specific to direct CPC reprogramming, whereas CASD reprogramming can generate various cell types depending on culture conditions and raises the possibility of transitioning through a pluripotent cell state...
May 2017: Nature Protocols
https://www.readbyqxmd.com/read/28425064/a-pathway-to-personalizing-therapy-for-metastases-using-liver-on-a-chip-platforms
#7
A S Khazali, A M Clark, A Wells
Metastasis accounts for most cancer-related deaths. The majority of solid cancers, including those of the breast, colorectum, prostate and skin, metastasize at significant levels to the liver due to its hemodynamic as well as tumor permissive microenvironmental properties. As this occurs prior to detection and treatment of the primary tumor, we need to target liver metastases to improve patients' outcomes. Animal models, while proven to be useful in mechanistic studies, do not represent the heterogeneity of human population especially in drug metabolism lack proper human cell-cell interactions, and this gap between animals and humans results in costly and inefficient drug discovery...
April 19, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28422367/microtensile-bond-strength-of-a-resin-cement-to-silica-based-and-y-tzp-ceramics-using-different-surface-treatments
#8
Alireza Keshvad, Seyed Mohammad Reza Hakimaneh
PURPOSE: To evaluate the effects of different surface treatments on the microtensile bond strength (μTBS) of bonding between resin cement and lithia or zirconia-based ceramics using an in vitro study. MATERIALS AND METHODS: Three zirconia ceramic blocks (IPS e.max ZirCAD) and three lithium disilicate ceramic blocks (IPS e.max CAD) were sintered and duplicated in resin composite. The zirconia specimens underwent various treatments (n = 1): (i) Sandblast + primer (ZiSa); (ii) sandblast + laser irradiation + primer (ZiSaLa); or (iii) laser irradiation + primer (ZiLa)...
April 19, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28421002/application-of-stem-cells-in-oral-disease-therapy-progresses-and-perspectives
#9
REVIEW
Bo Yang, Yi Qiu, Niu Zhou, Hong Ouyang, Junjun Ding, Bin Cheng, Jianbo Sun
Stem cells are undifferentiated and pluripotent cells that can differentiate into specialized cells with a more specific function. Stem cell therapies become preferred methods for the treatment of multiple diseases. Oral and maxillofacial defect is one kind of the diseases that could be most possibly cured by stem cell therapies. Here we discussed oral diseases, oral adult stem cells, iPS cells, and the progresses/challenges/perspectives of application of stem cells for oral disease treatment.
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28420858/transcriptional-regulation-of-pancreas-development-and-%C3%AE-cell-function-review
#10
Yoshio Fujitani
A small number of cells in the adult pancreas are endocrine cells. They are arranged in clusters called islets of Langerhans. The islets make insulin, glucagon, and other endocrine hormones, and release them into the blood circulation. These hormones help control the level of blood glucose. Therefore, a dysfunction of endocrine cells in the pancreas results in impaired glucose homeostasis, or diabetes mellitus. The pancreas is an organ that originates from the evaginations of pancreatic progenitor cells in the epithelium of the forgut endoderm...
April 14, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28419682/game-theoretical-mapping-of-causal-interactions-underlying-visuo-spatial-attention-in-the-human-brain-based-on-stroke-lesions
#11
Monica N Toba, Melissa Zavaglia, Federica Rastelli, Romain Valabrégue, Pascale Pradat-Diehl, Antoni Valero-Cabré, Claus C Hilgetag
Anatomical studies conducted in neurological conditions have developed our understanding of the causal relationships between brain lesions and their clinical consequences. The analysis of lesion patterns extended across brain networks has been particularly useful in offering new insights on brain-behavior relationships. Here we applied multiperturbation Shapley value Analysis (MSA), a multivariate method based on coalitional game theory inferring causal regional contributions to specific behavioral outcomes from the characteristic functional deficits after stroke lesions...
April 17, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28414743/the-et-1-mediated-carbonylation-and-degradation-of-anxa1-induce-inflammatory-phenotype-and-proliferation-of-pulmonary-artery-smooth-muscle-cells-in-hps
#12
Jing He, Bin Yi, Yang Chen, Qing Huang, Huan Wang, Kaizhi Lu, Weiling Fu
Hepatopulmonary syndrome (HPS) is a serious complication of advanced liver disease, which markedly increases mortality. Pulmonary vascular remodelling (PVR) induced by circulating mediators plays an important role in the pathogenesis of HPS, while the underlying mechanism remains undefined. In the present study, we reported that endothelin-1 (ET-1) is up-regulated and annexin A1(ANXA1) is down-regulated in HPS rat, and ET-1 decreases the ANXA1 expression in a dose-dependent manner in rat pulmonary arterial smooth muscle cells (PASMCs)...
2017: PloS One
https://www.readbyqxmd.com/read/28413817/dataset-in-support-of-the-generation-of-niemann-pick-disease-type-c1-patient-specific-ips-cell-lines-carrying-the-novel-npc1-mutation-c-1180t-c-or-the-prevalent-c-3182t-c-mutation-analysis-of-pluripotency-and-neuronal-differentiation
#13
Franziska Peter, Michaela Trilck, Michael Rabenstein, Arndt Rolfs, Moritz J Frech
Data presented in this article demonstrate the generation and characterization of two novel Niemann-Pick disease Type C1 (NPC1) patient-specific induced pluripotent stem cell (iPSC) lines, related to the research article Trilck et al. (Diversity of Glycosphingolipid GM2 and Cholesterol Accumulation in NPC1 Patient-Specific iPSC-Derived Neurons; Brain Res.; 2017; 1657:52-61. doi: 10.1016/j.brainres.2016.11.031). For reprogramming fibroblasts, carrying the novel homozygous mutation c.1180T>C and the prevalent homozygous mutation c...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28413770/biophysical-regulation-of-cell-reprogramming
#14
Sze Yue Wong, Jennifer Soto, Song Li
Induced pluripotent stem (iPS) cell reprogramming and direct reprogramming are promising approaches for disease modeling and personalized medicine. However, these processes are yet to be optimized. Biomaterials are increasingly integrated into cell reprogramming strategies in order to engineer the microenvironment, improve reprogramming efficiency and achieve effective in situ cell reprogramming. Although there are some studies on the role of biomaterials in iPS cell reprogramming, their effect on direct cell conversion has not been fully explored...
February 2017: Current Opinion in Chemical Engineering
https://www.readbyqxmd.com/read/28407701/correction-a-new-immunohistochemistry-prognostic-score-ips-for-recurrence-and-survival-in-resected-pancreatic-neuroendocrine-tumors-pannet
#15
Antonio Viúdez, Filipe L F Carvalho, Zahra Maleki, Marianna Zahurak, Daniel Laheru, Alejandro Stark, Nilofer S Azad, Christopher L Wolfgang, Stephen Baylin, James G Herman, Ana De Jesus-Acosta
No abstract text is available yet for this article.
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28407125/cell-fate-modification-toward-the-hepatic-lineage-by-extrinsic-factors
#16
Masaki Kawamata, Atsushi Suzuki
The lineage of a somatic cell can be altered by targeting its signaling networks with small molecules and/or genetically altering the expression of key transcription factors. Depending on the combination of factors, fibroblasts can be fully reprogrammed into induced pluripotent stem (iPS) cells or directly converted into specific cell lineages, bypassing the pluripotent state. The generation of defined target cells will enormously benefit patients who require cell transplantation therapy. In the decade since iPS cells were first generated, many cell types have been induced from fibroblasts by direct conversion, including hepatocytes...
April 12, 2017: Journal of Biochemistry
https://www.readbyqxmd.com/read/28402734/masking-colored-substrates-using-monolithic-and-bilayer-cad-cam-ceramic-structures
#17
G R Basso, A B Kodama, A H Pimentel, M R Kaizer, A Della Bona, R R Moraes, N Boscato
OBJECTIVE: To evaluate the masking ability and translucency of monolithic and bilayer CAD-CAM ceramic structures. METHODS: Discs of high translucency (HT) and low translucency (LT) lithium disilicate-based ceramic (IPS e.max CAD) with different thicknesses (0.7, 1, 1.5, and 2 mm) were evaluated as a monolithic structure or combined (bilayer) with a 0.5-mm-thick zirconia framework (IPS e.max ZirCAD). The masking ability and translucency were calculated based on CIE L*a*b* color coordinates measured with a spectrophotometer (SP60, X-Rite)...
April 12, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28402732/different-methods-for-inlay-production-effect-on-internal-and-marginal-adaptation-adjustment-time-and-contact-point
#18
M P Rippe, C Monaco, L Volpe, M A Bottino, R Scotti, L F Valandro
The aim of this study was to evaluate the effect of different production methods of resin and ceramic inlays on marginal and internal adaptation, adjustment time, and proximal contacts. Forty premolars were selected, embedded (their roots), and prepared to receive inlays that were made as follows (n=10): LaRe-digital impression with a Lava C.O.S. scanner, followed by milling of Lava Ultimate block (composite resin) in a milling center; CeRe-digital impression with a Cerec 3D Bluecam scanner, followed by milling of Lava Ultimate block in Cerec; CeDis-digital impression with a Cerec 3D Bluecam scanner, followed by milling of IPS e...
April 12, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28399172/in-silico-design-of-the-first-dna-independent-mechanism-based-inhibitor-of-mammalian-dna-methyltransferase-dnmt1
#19
Vedran Miletić, Ivica Odorčić, Patrik Nikolić, Željko M Svedružić
BACKGROUND: We use our earlier experimental studies of the catalytic mechanism of DNA methyltransferases to prepare in silico a family of novel mechanism-based inhibitors of human Dnmt1. Highly specific inhibitors of DNA methylation can be used for analysis of human epigenome and for the creation of iPS cells. RESULTS: We describe a set of adenosyl-1-methyl-pyrimidin-2-one derivatives as novel mechanism-based inhibitors of mammalian DNA methyltransferase Dnmt1. The inhibitors have been designed to bind simultaneously in the active site and the cofactor site and thus act as transition-state analogues...
2017: PloS One
https://www.readbyqxmd.com/read/28395810/generation-of-non-integrated-induced-pluripotent-stem-cells-from-a-23-year-old-male-with-multiple-endocrine-neoplasia-type-1-syndrome
#20
Dongsheng Guo, Feima Wu, Haikun Liu, Ge Gao, Shanglong Kou, Fan Yang, Nasir Abbas, Tiancheng Zhou, Xiujuan Cai, Hui Zhang, Dajiang Qin, Jialiang Li, Kecheng Xu, Yin-Xiong Li
Urine resource cells were collected from a 23-year-old male with multiple endocrine neoplasia type 1 syndrome (MEN1) for generating iPS cells with episomal plasmids. Two stable iPSC lines with free of episomal plasmid were established. The patient has a heterozygous G>T mutation on the exon 9 of Men1 gene that was confirmed by sequencing analysis on all resulted cell lines. Karyotyping indicated the chromosomes with normal appearances and numbers. Their pluripotency was demonstrated by gene expression and their abilities for differentiating into three germ layers...
January 2017: Stem Cell Research
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