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https://www.readbyqxmd.com/read/28814615/single-cell-gene-expression-of-the-bovine-blastocyst
#1
Veronica M Negrón-Pérez, Yanping Zhang, Peter J Hansen
The first two differentiation events in the blastocyst result in three cell types - epiblast, trophectoderm (TE), and hypoblast. The purpose here was to identify molecular markers for each cell type in the bovine and evaluate differences in gene expression among individual cells of each lineage. The cDNA from 67 individual cells from dissociated blastocysts was used to determine transcript abundance for 96 genes implicated as cell lineage markers in other species or potentially involved in developmental processes...
August 16, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28782694/co-regulation-of-micrornas-and-transcription-factors-in-cardiomyocyte-specific-differentiation-of-murine-embryonic-stem-cells-an-aspect-from-transcriptome-analysis
#2
Lin Gan, Bernd Denecke
The differentiation process of embryonic stem cells is a comprehensive process regulated by a variety of factors in response to stimulus. Studies of this process can be focused on cell biology as well as on molecular biology level. In this paper we identified the co-regulation of molecular regulators and their interactions during cardiomyocyte specific differentiation of mouse embryonic stem cells based on parallel genome wide transcriptome analyses of mRNA and microRNA. Differentially expressed mRNAs and microRNAs were identified according to their expression profiles...
August 4, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28737214/decline-in-cellular-function-of-aged-mouse-c-kit-cardiac-progenitor-cells
#3
Alessandra Castaldi, Ramsinh Mansinh Dodia, Amabel M Orogo, Cristina M Zambrano, Rita H Najor, Åsa B Gustafsson, Joan Heller Brown, Nicole H Purcell
Therapeutic use of c-kit(+) cardiac progenitor cells (CPCs) is being evaluated for regenerative therapy in older patients with ischemic heart failure. Our understanding of the biology of these CPCs has however, largely come from studies of young cells and animal models. In the present study we examined characteristics of CPCs isolated from young (3 months) and aged (24 month) mice that could underlie the diverse outcomes reported for CPC-based therapeutics. We observed morphological differences and altered senescence indicated by increased senescence associated markers β-galactosidase and p16 mRNA in aged CPCs...
July 24, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28710293/probing-gata-factor-function-in-mouse-leydig-cells-via-testicular-injection-of-adenoviral-vectors
#4
Gervette M Penny, Rebecca B Cochran, Marjut Pihlajoki, Antti Kyrönlahti, Anja Schrade, Merja Häkkinen, Jorma Toppari, Markku Heikinheimo, David B Wilson
Testicular Leydig cells produce androgens essential for proper male reproductive development and fertility. Here, we describe a new Leydig cell ablation model based on Cre/Lox recombination of mouse Gata4 and Gata6, two genes implicated in the transcriptional regulation of steroidogenesis. The testicular interstitium of adult Gata4(flox/flox);Gata6(flox/flox) mice was injected with adenoviral vectors encoding Cre + GFP (Ad-Cre-IRES-GFP) or GFP alone (Ad-GFP). The vectors efficiently and selectively transduced Leydig cells, as evidenced by GFP reporter expression...
July 14, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28684780/retinoic-acid-affects-lung-adenocarcinoma-growth-by-inducing-differentiation-via-gata6-activation-and-egfr-and-wnt-inhibition
#5
Giovanni Zito, Flores Naselli, Laura Saieva, Stefania Raimondo, Giovanna Calabrese, Claudio Guzzardo, Stefano Forte, Christian Rolfo, Rosalba Parenti, Riccardo Alessandro
A fundamental task in cancer research aims at the identification of new pharmacological therapies that can affect tumor growth. Differentiation therapy might exploit this function not only for hematological diseases, such as acute promyelocytic leukemia (APML) but also for epithelial tumors, including lung cancer. Here we show that Retinoic Acid (RA) arrests in vitro and in vivo the growth of Tyrosine Kinase Inhibitors (TKI) resistant Non Small Cell Lung Cancer (NSCLC). In particular, we found that RA induces G0/G1 cell cycle arrest in TKI resistant NSCLC cells and activates terminal differentiation programs by modulating the expression of GATA6, a key transcription factor involved in the physiological differentiation of the distal lung...
July 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28675489/synergy-between-auraptene-ionizing-radiation-and-anticancer-drugs-in-colon-adenocarcinoma-cells
#6
Mahdi Moussavi, Farhang Haddad, Fatemeh B Rassouli, Mehrdad Iranshahi, Shokouhozaman Soleymanifard
Colorectal cancer is a growing health concern with increasing mortality rates, and resistance to anticancer drugs and radiotherapy is a serious drawback in its treatment. Auraptene is a natural prenyloxycoumarin with valuable anticancer effects. The aim of current study was to determine the synergy between auraptene, ionizing radiation, and chemotherapeutic drugs in colon adenocarcinoma cells for the first time. To do so, HT29 cells were treated with combination of auraptene + cisplatin, + doxorubicin, or + vincristine...
July 4, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28617435/interaction-between-autophagy-and-senescence-is-required-for-dihydroartemisinin-to-alleviate-liver-fibrosis
#7
Zili Zhang, Zhen Yao, Shifeng Zhao, Jiangjuan Shao, Anping Chen, Feng Zhang, Shizhong Zheng
Autophagy and cellular senescence are stress responses essential for homeostasis. Therefore, they may represent new pharmacologic targets for drug development to treat diseases. In this study, we sought to evaluate the effect of dihydroartemisinin (DHA) on senescence of activated hepatic stellate cells (HSCs), and to further elucidate the underlying mechanisms. We found that DHA treatment induced the accumulation of senescent activated HSCs in rat fibrotic liver, and promoted the expression of senescence markers p53, p16, p21 and Hmga1 in cell model...
June 15, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28615712/cell-specific-expression-of-aquaporin-5-aqp5-in-alveolar-epithelium-is-directed-by-gata6-sp1-via-histone-acetylation
#8
Per Flodby, Changgong Li, Yixin Liu, Hongjun Wang, Megan E Rieger, Parviz Minoo, Edward D Crandall, David K Ann, Zea Borok, Beiyun Zhou
Epigenetic regulation of differentiation-related genes is poorly understood. We previously reported that transcription factors GATA6 and Sp1 interact with and activate the rat proximal 358-bp promoter/enhancer (p358P/E) of lung alveolar epithelial type I (AT1) cell-specific gene aquaporin-5 (Aqp5). In this study, we found that histone deacetylase (HDAC) inhibitor suberoylanilide hydroxamic acid (SAHA) increased AQP5 expression and Sp1-mediated transcription of p358P/E. HDAC3 overexpression inhibited Sp1-mediated Aqp5 activation, while HDAC3 knockdown augmented AQP5 protein expression...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28606935/gata6-is-essential-for-endoderm-formation-from-human-pluripotent-stem-cells
#9
J B Fisher, K Pulakanti, S Rao, S A Duncan
Protocols have been established that direct differentiation of human pluripotent stem cells into a variety of cell types, including the endoderm and its derivatives. This model of differentiation has been useful for investigating the molecular mechanisms that guide human developmental processes. Using a directed differentiation protocol combined with shRNA depletion we sought to understand the role of GATA6 in regulating the earliest switch from pluripotency to definitive endoderm. We reveal that GATA6 depletion during endoderm formation results in apoptosis of nascent endoderm cells, concomitant with a loss of endoderm gene expression...
July 15, 2017: Biology Open
https://www.readbyqxmd.com/read/28591748/clinical-roles-of-the-aberrantly-expressed-lncrnas-in-lung-squamous-cell-carcinoma-a-study-based-on-rna-sequencing-and-microarray-data-mining
#10
Wen-Jie Chen, Rui-Xue Tang, Rong-Quan He, Dong-Yao Li, Liang Liang, Jiang-Hui Zeng, Xiao-Hua Hu, Jie Ma, Shi-Kang Li, Gang Chen
Lung squamous cell carcinoma (LUSC) accounts for a significant proportion of lung cancer and there have been few therapeutic alternatives for recurrent LUSC due to the lack of specific driver molecules. To investigate the prospective role of lncRNAs in the tumorigenesis and progression of LUSC, the aberrantly expressed lncRNAs were calculated based on The Cancer Genome Atlas RNA-seq data. Of 7589 lncRNAs with 504 LUSC cases, 884 lncRNAs were identified as being aberrantly expressed (|log2 fold change| >2 and adjusted P<0...
May 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28587328/microrna-143-inhibits-tumorigenesis-in-hepatocellular-carcinoma-by-downregulating-gata6
#11
Feng Xue, Jiwei Yin, Lin Xu, Boqing Wang
MicroRNAs serve a critical role in human hepatocellular carcinoma (HCC) progression. However, the exact role of microRNA-143 (miR-143) in HCC remains unclear. The current study investigates the molecular mechanism of miR-143 in HCC. In cultured HepG2 and Bel7402 cell lines, miR-143 levels were raised by lentivirus transduction. This significantly inhibited HCC progression in terms of cell invasion and proliferation in both HepG2 and Bel7402 cell lines (P<0.05). MiR-143 also significantly decreased tumor implantation in vivo (P<0...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28560445/genistein-and-menaquinone-4-treatment-induced-alterations-in-the-expression-of-mrnas-and-their-products-are-beneficial-to-osteoblastic-mc3t3-e1-cell-functions
#12
Midori Katsuyama, Masashi Demura, Hironobu Katsuyama, Hideji Tanii, Kiyofumi Saijoh
The aim of the present study was to determine the molecular basis of the beneficial effects of genistein and/or menaquinone‑4 (MK‑4) on bone quality. Initially, 1 µM genistein was applied to MC3T3‑E1 cells for 24 h and the upregulated mRNAs that were detected by microarray were selected for further examination by reverse transcription‑quantitative‑polymerase chain reaction. Among them, alterations were observed in the level of GATA‑binding protein 6 (GATA6), Notch gene homolog 2 (NOTCH2), Wnt family member 5A (WNT5A), bone γ‑carboxyglutamate protein (BGLAP), chondroadherin (CHAD), dipeptidyl peptidase 4 (DPP4), ectonucleotide pyrophosphatase/phosphodiesterase 2 (ENPP2), alkaline phosphatase (ALP) 3 and ATPase phospholipid‑transporting 11A (ATP11A) in response to treatment with 0...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28542204/similar-regulatory-mechanisms-of-caveolins-and-cavins-by-myocardin-family-coactivators-in-arterial-and-bladder-smooth-muscle
#13
Baoyi Zhu, Catarina Rippe, Tran Thi Hien, Jianwen Zeng, Sebastian Albinsson, Karin G Stenkula, Bengt Uvelius, Karl Swärd
Caveolae are membrane invaginations present at high densities in muscle and fat. Recent work has demonstrated that myocardin family coactivators (MYOCD, MKL1), which are important for contractile differentiation and cell motility, increase caveolin (CAV1, CAV2, CAV3) and cavin (CAVIN1, CAVIN2, CAVIN3) transcription, but several aspects of this control mechanism remain to be investigated. Here, using promoter reporter assays we found that both MKL1/MRTF-A and MKL2/MRTF-B control caveolins and cavins via their proximal promoter sequences...
2017: PloS One
https://www.readbyqxmd.com/read/28504705/wounding-induces-dedifferentiation-of-epidermal-gata6-cells-and-acquisition-of-stem-cell-properties
#14
Giacomo Donati, Emanuel Rognoni, Toru Hiratsuka, Kifayathullah Liakath-Ali, Esther Hoste, Gozde Kar, Melis Kayikci, Roslin Russell, Kai Kretzschmar, Klaas W Mulder, Sarah A Teichmann, Fiona M Watt
The epidermis is maintained by multiple stem cell populations whose progeny differentiate along diverse, and spatially distinct, lineages. Here we show that the transcription factor Gata6 controls the identity of the previously uncharacterized sebaceous duct (SD) lineage and identify the Gata6 downstream transcription factor network that specifies a lineage switch between sebocytes and SD cells. During wound healing differentiated Gata6(+) cells migrate from the SD into the interfollicular epidermis and dedifferentiate, acquiring the ability to undergo long-term self-renewal and differentiate into a much wider range of epidermal lineages than in undamaged tissue...
June 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28475878/gotta-have-gata-for-human-pancreas-development
#15
David S Lorberbaum, Lori Sussel
Haploinsufficient GATA6 mutations are associated with human pancreatic agenesis. Shi et al. (2017) in this issue of Cell Stem Cell and Tiyaboonchai et al. (2017) in a recent issue of Cell Reports utilize hPSCs to characterize GATA6 function during human pancreas development. One functional copy of GATA6 is sufficient for definitive endoderm development and pancreas formation, but it is inadequate for functional β cell differentiation.
May 4, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28449095/role-of-cc-cytokines-in-spatial-arrangement-of-the-inner-cell-mass-of-the-bovine-embryo
#16
Verónica M Negrón-Pérez, Dorianmarie Vargas-Franco, Peter J Hansen
The process of spatial rearrangement of cells of the inner cell mass (ICM) that are destined to become hypoblast is not well understood. The observation that the chemokine CCL24 and several other genes involved in chemokine signaling are expressed more in the ICM than the trophectoderm of the bovine embryo resulted in the hypothesis that CCL24 participates in spatial organization of the ICM. Temporally, expression of CCL24 in the bovine embryo occurs coincident with blastocyst formation: transcript abundance was low until the late morula stage, peaked in the blastocyst at Day 7 of development and declined by Day 9...
April 25, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28381408/rare-genetic-variants-in-gata-transcription-factors-in-patients-with-hypertrophic-cardiomyopathy
#17
Cristina Alonso-Montes, Julián Rodríguez-Reguero, María Martín, Juan Gómez, Eliecer Coto, Manuel Naves-Díaz, César Morís, Jorge B Cannata-Andía, Isabel Rodríguez
Hypertrophic cardiomyopathy (HCM) is a very heterogeneous disease. Although primarily caused by mutations in genes encoding sarcomeric proteins, other genes might explain that heterogeneity. Potential candidate genes are GATA transcription factors that regulate the expression of proteins associated with HCM. Exons of GATA2, GATA4, and GATA6 genes were sequenced in 212 patients with unrelated HCM previously analyzed for genes encoding the most frequently mutated sarcomeric proteins. Functional effects of variants were predicted by in silico analyses...
June 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28380430/novel-rna-biomarkers-of-prostate-cancer-revealed-by-rna-seq-analysis-of-formalin-fixed-samples-obtained-from-russian-patients
#18
Anastasia S Nikitina, Elena I Sharova, Svetlana A Danilenko, Tatiana B Butusova, Alexandr O Vasiliev, Alexandr V Govorov, Elena A Prilepskaya, Dmitry Y Pushkar, Elena S Kostryukova
Due to heterogeneous multifocal nature of prostate cancer (PCa), there is currently a lack of biomarkers that stably distinguish it from benign prostatic hyperplasia (BPH), predict clinical outcome and guide the choice of optimal treatment. In this study RNA-seq analysis was applied to formalin-fixed paraffin-embedded (FFPE) tumor and matched normal tissue samples collected from Russian patients with PCa and BPH. We identified 3384 genes differentially expressed (DE) (FDR < 0.05) between tumor tissue of PCa patients and adjacent normal tissue as well as both tissue types from BPH patients...
May 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28298438/single-cell-analysis-reveals-lineage-segregation-in-early-post-implantation-mouse-embryos
#19
Jing Wen, Yanwu Zeng, Zhuoqing Fang, Junjie Gu, Laixiang Ge, Fan Tang, Zepeng Qu, Jing Hu, Yaru Cui, Kushan Zhang, Junbang Wang, Siguang Li, Yi Sun, Ying Jin
The mammalian post-implantation embryo has been extensively investigated at the tissue level. However, to unravel the molecular basis for the cell-fate plasticity and determination, it is essential to study the characteristics of individual cells. In particular, the individual definitive endoderm (DE) cells have not been characterized in vivo Here, we report gene expression patterns in single cells freshly isolated from mouse embryos on days 5.5 and 6.5. Initial transcriptome data from 124 single cells yielded signature genes for the epiblast, visceral endoderm, and extra-embryonic ectoderm and revealed a unique distribution pattern of fibroblast growth factor (FGF) ligands and receptors...
June 9, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28275215/roles-of-gata6-during-gonadal-development-in-japanese-flounder-gonadogenesis-regulation-of-gender-related-genes-estrogen-formation-and-gonadal-function-maintenance
#20
Zan Li, Xiumei Liu, Yan Sun, Jinxiang Liu, Yuezhong Liu, Mengxun Wang, Quanqi Zhang, Xubo Wang
GATA-binding protein 6 (GATA6), a highly-conserved transcription factor of the GATA family plays an important role in gonadal cell proliferation, differentiation and endoderm development. In this study, the full-length cDNA of GATA6 of Paralichthys olivaceus (Japanese flounder) was obtained. Phylogenetic, gene structure and synteny analyses demonstrated that GATA6 of P. olivaceus is homologous to that of teleosts and tetrapods. The P. olivaceus GATA6 transcript showed higher expression in testis than in ovary, demonstrating a sexually dimorphic gene expression...
January 16, 2017: International Journal of Molecular Sciences
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