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Achim Lother, Stella Bergemann, Lisa Deng, Martin Moser, Christoph Bode, Lutz Hein
OBJECTIVE: Endothelial cells (ECs) are a highly specialized cell type with marked diversity between different organs or vascular beds. Cardiac ECs are an important player in cardiac physiology and pathophysiology but are not sufficiently characterized yet. Thus, the aim of the present study was to analyze the cardiac EC transcriptome. APPROACH AND RESULTS: We applied fluorescence-assisted cell sorting to isolate pure ECs from adult mouse hearts. RNAseq revealed 1288 genes predominantly expressed in cardiac ECs versus heart tissue including several transcription factors...
January 4, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
Sanjiv Neupane, Nirpesh Adhikari, Jae-Kwang Jung, Chang-Hyeon An, Sanggyu Lee, Jong-Hwa Jun, Ji-Youn Kim, Youngkyun Lee, Wern-Joo Sohn, Jae-Young Kim
Epithelial differentiation is thought to be determined by mesenchymal components during embryogenesis. In mice, palatal mucosa showed the region-specific keratinization pattern along antero-posterior axis. However, developmental mechanisms involved in oral mucosa differentiation with fine tuning of keratinization are not elucidated yet. To reveal this developmental mechanism, first, we conducted tissue recombination assay of the palate at E16 for 2 days which revealed that epithelial differentiation with specific localization of CK10 is modulated by mesenchymal components...
December 5, 2017: Histochemistry and Cell Biology
Duy Le Tran, Hideto Imura, Akihiro Mori, Satoshi Suzuki, Teruyuki Niimi, Maya Ono, Chisato Sakuma, Shinichi Nakahara, Tham Thi Hong Nguyen, Phuong Thi Pham, Viet Hoang, Van Thi Tuyet Tran, Minh Duc Nguyen, Nagato Natsume
To evaluate the association between the single nucleotide polymorphism (SNP) rs227493 in the MEOX2 gene and nonsyndromic cleft palate only, this research was conducted as a case-control study by comparing a nonsyndromic cleft palate only group with an independent, healthy, and unaffected control group who were both examined by specialists. Based on clinical examination and medical records, we analyzed a total of 570 DNA samples, including 277 cases and 293 controls, which were extracted from dry blood spot samples collected from both the Odonto and Maxillofacial Hospital in Ho Chi Minh City and Nguyen Dinh Chieu Hospital in Ben Tre province respectively...
October 14, 2017: Congenital Anomalies
Amy Pei-Ling Chiu, Denise Bierende, Nathaniel Lal, Fulong Wang, Andrea Wan, Israel Vlodavsky, Bahira Hussein, Brian Rodriges
In the diabetic heart, there is excessive dependence on FA utilization to generate ATP. Lipoprotein lipase (LPL)-mediated hydrolysis of circulating triglyceride (TG) is suggested to be the predominant source of FA for cardiac utilization during diabetes. In the heart, majority of LPL is synthesized in cardiomyocytes, and secreted onto cell surface heparan sulfate proteoglycans (HSPG), where an endothelial cell (EC) releasable β-endoglycosidase, heparanase, cleaves the side chains of HSPG to liberate LPL for its onward movement across the EC...
October 6, 2017: American Journal of Physiology. Heart and Circulatory Physiology
Leonel Armas-López, Patricia Piña-Sánchez, Oscar Arrieta, Enrique Guzman de Alba, Blanca Ortiz-Quintero, Patricio Santillán-Doherty, David C Christiani, Joaquín Zúñiga, Federico Ávila-Moreno
Several homeobox-related gene (HOX) transcription factors such as mesenchyme HOX-2 (MEOX2) have previously been associated with cancer drug resistance, malignant progression and/or clinical prognostic responses in lung cancer patients; however, the mechanisms involved in these responses have yet to be elucidated. Here, an epigenomic strategy was implemented to identify novel MEOX2 gene promoter transcription targets and propose a new molecular mechanism underlying lung cancer drug resistance and poor clinical prognosis...
September 15, 2017: Oncotarget
Basavaraj Vastrad, Chanabasayya Vastrad, Ashok Godavarthi, Raghu Chandrashekar
The aim of this study was to identify key genes associated with gliomas and glioblastoma and to explore the related signaling pathways. Gene expression profiles of three glioma stem cell line samples, three normal astrocyte samples, three astrocyte overexpressing 4 iPSC-inducing and oncogenic factors (myc(T58A), OCT-4, p53DD, and H-Ras(G12V)) samples, three astrocyte overexpressing 7 iPSC-inducing and oncogenic factors (OCT4, H-Ras(G12V), myc(T58A), p53DD, cyclin D1, CDK4(RC24) and hTERT) samples and three glioblastoma cell line samples were downloaded from the ArrayExpress database (accession: E-MTAB-4771)...
September 26, 2017: Medical Oncology
Leonel Armas-López, Patricia Piña-Sánchez, Oscar Arrieta, Enrique Guzman de Alba, Blanca Ortiz-Quintero, Patricio Santillán-Doherty, David C Christiani, Joaquín Zúñiga, Federico Ávila-Moreno
Several homeobox-related gene (HOX) transcription factors such as mesenchyme HOX-2 (MEOX2) have previously been associated with cancer drug resistance, malignant progression and/or clinical prognostic responses in lung cancer patients; however, the mechanisms involved in these responses have yet to be elucidated. Here, an epigenomic strategy was implemented to identify novel MEOX2 gene promoter transcription targets and propose a new molecular mechanism underlying lung cancer drug resistance and poor clinical prognosis...
May 9, 2017: Oncotarget
Bongyong Lee, Anupama Sahoo, John Marchica, Erwin Holzhauser, Xiaoli Chen, Jian-Liang Li, Tatsuya Seki, Subramaniam Shyamala Govindarajan, Fatu Badiane Markey, Mona Batish, Sonali J Lokhande, Shaojie Zhang, Animesh Ray, Ranjan J Perera
Molecular mechanisms by which long noncoding RNA (lncRNA) molecules may influence cancerous condition are poorly understood. The aberrant expression of SPRIGHTLY lncRNA, encoded within the drosophila gene homolog Sprouty-4 intron, is correlated with a variety of cancers, including human melanomas. We demonstrate by SHAPE-seq and dChIRP that SPRIGHTLY RNA secondary structure has a core pseudoknotted domain. This lncRNA interacts with the intronic regions of six pre-mRNAs: SOX5, SMYD3, SND1, MEOX2, DCTN6, and RASAL2, all of which have cancer-related functions...
May 2017: Science Advances
Moe Kitazawa, Masaru Tamura, Tomoko Kaneko-Ishino, Fumitoshi Ishino
Paternally expressed 11/Retrotransposon-like 1 (Peg11/Rtl1) knockout (KO) mice show mid- to late fetal lethality or late fetal growth retardation associated with frequent neonatal lethality. The lethal phenotype is largely dependent on genetic background and becomes more severe with each succeeding generation in the course of backcross experiments to C57BL/6 (B6). We previously suggested that these lethal and growth phenotypes in the fetal stages were due to severe defects in placental fetal capillaries in the labyrinth layer...
February 2017: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
Cassandra R Gohn, Emily K Blue, BreAnn M Sheehan, Kaela M Varberg, Laura S Haneline
Diabetes mellitus (DM) during pregnancy has long-lasting implications for the fetus, including cardiovascular morbidity. Previously, we showed that endothelial colony forming cells (ECFCs) from DM human pregnancies have decreased vasculogenic potential. Here, we evaluate whether the molecular mechanism responsible for this phenotype involves the transcription factor, Mesenchyme Homeobox 2 (MEOX2). In human umbilical vein endothelial cells, MEOX2 upregulates cyclin-dependent kinase inhibitor expression, resulting in increased senescence and decreased proliferation...
July 2017: Journal of Cellular Physiology
Ping Liu, Fei Yang, Yu Zhuang, Qingyang Xiao, Huabin Cao, Caiying Zhang, Tiancheng Wang, Huayuan Lin, Xiaoquan Guo, Guoliang Hu
Ascites syndrome (AS), also known as pulmonary artery hypertension, remains a challenging disease that severely affects both humans and broiler chickens. Pulmonary artery remodeling presents a key step in the development of AS. In this study, we obtained pulmonary artery tissues from broilers with and without AS to perform miRNA sequencing analysis, miRNA-mRNA association analysis and pathological examinations. 29 significantly differentially expressed miRNAs were found both in known and novel miRNAs with 18 up-regulated and 11 down-regulated miRNAs...
January 10, 2017: Oncotarget
Chunhui Xie, Kai Shi, Xi Zhang, Jingchun Zhao, Jiaao Yu
The cell biological basis for scar formation is mainly via excessive fibroblast proliferation accompanied by hypernomic Col I accumulation and inflammation. The role of miR-1908 in scar formation has not been investigated. In this study, we found that miR-1908 expression was inversely associated with the scar suppressor Ski in normal, burn-wounded, healing and scar dermal tissues in humans. Bioinformatics and luciferase reporter gene assays confirmed that miR-1908 targeted the 3'UTR region of Ski mRNA and suppressed Ski expression...
November 2016: Cell and Tissue Research
Ileana Soto, Weronika A Grabowska, Kristen D Onos, Leah C Graham, Harriet M Jackson, Stephen N Simeone, Gareth R Howell
Evidence suggests that multiple genetic and environmental factors conspire together to increase susceptibility to Alzheimer's disease (AD). The amyloid cascade hypothesis states that deposition of the amyloid-β (Aβ) peptide is central to AD; however, evidence in humans and animals suggests that Aβ buildup alone is not sufficient to cause neuronal cell loss and cognitive decline. Mouse models that express high levels of mutant forms of amyloid precursor protein and/or cleaving enzymes deposit amyloid but do not show neuron loss...
June 2016: Neurobiology of Aging
(no author information available yet)
No abstract text is available yet for this article.
April 2016: Experimental and Molecular Pathology
Federico Ávila-Moreno, Leonel Armas-López, Aldo M Álvarez-Moran, Zoila López-Bujanda, Blanca Ortiz-Quintero, Alfredo Hidalgo-Miranda, Francisco Urrea-Ramírez, R María Rivera-Rosales, Eugenia Vázquez-Manríquez, Erika Peña-Mirabal, José Morales-Gómez, Juan C Vázquez-Minero, José L Téllez-Becerra, Roberto Ramírez-Mendoza, Alejandro Ávalos-Bracho, Enrique Guzmán de Alba, Karla Vázquez-Santillán, Vilma Maldonado-Lagunas, Patricio Santillán-Doherty, Patricia Piña-Sánchez, Joaquin Zúñiga-Ramos
No abstract text is available yet for this article.
2016: PloS One
Maïté Noizet, Emilie Lagoutte, Marlène Gratigny, Marielle Bouschbacher, Isabelle Lazareth, Hugues Roest Crollius, Xavier Darzacq, Claire Dugast-Darzacq
Fibroblasts are important players in regulating tissue homeostasis. In the dermis, they are involved in wound healing where they differentiate into contractile myofibroblasts leading to wound closure. In nonhealing chronic wounds, fibroblasts fail to undertake differentiation. We established and used a human ex vivo model of chronic wounds where fibroblasts can undergo normal myofibroblast differentiation, or take on a nondifferentiable pathological state. At the whole genome scale, we identified the genes that are differentially regulated in these two cell fates...
March 2016: Wound Repair and Regeneration
Philippe Daubas, Nathalie Duval, Lola Bajard, Francina Langa Vives, Benoît Robert, Baljinder S Mankoo, Margaret Buckingham
Skeletal myogenesis in vertebrates is initiated at different sites of skeletal muscle formation during development, by activation of specific control elements of the myogenic regulatory genes. In the mouse embryo, Myf5 is the first myogenic determination gene to be expressed and its spatiotemporal regulation requires multiple enhancer sequences, extending over 120 kb upstream of the Mrf4-Myf5 locus. An enhancer, located at -57/-58 kb from Myf5, is responsible for its activation in myogenic cells derived from the hypaxial domain of the somite, that will form limb muscles...
November 4, 2015: Biology Open
Wen-Yi Yang, Thibault Petit, Lutgarde Thijs, Zhen-Yu Zhang, Lotte Jacobs, Azusa Hara, Fang-Fei Wei, Erika Salvi, Lorena Citterio, Simona Delli Carpini, Yu-Mei Gu, Judita Knez, Nicholas Cauwenberghs, Matteo Barcella, Cristina Barlassina, Paolo Manunta, Giulia Coppiello, Xabier L Aranguren, Tatiana Kuznetsova, Daniele Cusi, Peter Verhamme, Aernout Luttun, Jan A Staessen
BACKGROUND: In mice MEOX2/TCF15 heterodimers are highly expressed in heart endothelial cells and are involved in the transcriptional regulation of lipid transport. In a general population, we investigated whether genetic variation in these genes predicted coronary heart disease (CHD). RESULTS: In 2027 participants randomly recruited from a Flemish population (51.0 % women; mean age 43.6 years), we genotyped six SNPs in MEOX2 and four in TCF15. Over 15.2 years (median), CHD, myocardial infarction, coronary revascularisation and ischaemic cardiomyopathy occurred in 106, 53, 78 and 22 participants...
2015: BMC Genetics
Jennifer Permuth-Wey, Y Ann Chen, Kate Fisher, Susan McCarthy, Xiaotao Qu, Mark C Lloyd, Agnieszka Kasprzak, Michelle Fournier, Vonetta L Williams, Kavita M Ghia, Sean J Yoder, Laura Hall, Christina Georgeades, Funmilayo Olaoye, Kazim Husain, Gregory M Springett, Dung-Tsa Chen, Timothy Yeatman, Barbara Ann Centeno, Jason Klapman, Domenico Coppola, Mokenge Malafa
BACKGROUND: Intraductal papillary mucinous neoplasms (IPMNs) are pancreatic ductal adenocarcinoma (PDAC) precursors. Differentiating between high-risk IPMNs that warrant surgical resection and low-risk IPMNs that can be monitored is a significant clinical problem, and we sought to discover a panel of mi(cro)RNAs that accurately classify IPMN risk status. METHODOLOGY/PRINCIPAL FINDINGS: In a discovery phase, genome-wide miRNA expression profiling was performed on 28 surgically-resected, pathologically-confirmed IPMNs (19 high-risk, 9 low-risk) using Taqman MicroRNA Arrays...
2015: PloS One
Giulia Coppiello, Maria Collantes, María Salomé Sirerol-Piquer, Sara Vandenwijngaert, Sandra Schoors, Melissa Swinnen, Ine Vandersmissen, Paul Herijgers, Baki Topal, Johannes van Loon, Jan Goffin, Felipe Prósper, Peter Carmeliet, Jose Manuel García-Verdugo, Stefan Janssens, Iván Peñuelas, Xabier L Aranguren, Aernout Luttun
BACKGROUND: Microvascular endothelium in different organs is specialized to fulfill the particular needs of parenchymal cells. However, specific information about heart capillary endothelial cells (ECs) is lacking. METHODS AND RESULTS: Using microarray profiling on freshly isolated ECs from heart, brain, and liver, we revealed a genetic signature for microvascular heart ECs and identified Meox2/Tcf15 heterodimers as novel transcriptional determinants. This signature was largely shared with skeletal muscle and adipose tissue endothelium and was enriched in genes encoding fatty acid (FA) transport-related proteins...
March 3, 2015: Circulation
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