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https://www.readbyqxmd.com/read/28938790/factors-affecting-adipose-tissue-development-in-chickens-a-review
#1
Guoqing Wang, Woo Kyun Kim, Mark A Cline, Elizabeth R Gilbert
The intense genetic selection for rapid growth in broilers has resulted in an increase in voluntary feed intake and growth rate, accompanied by increased fat deposition in adipose tissue depots throughout the body. Adipose tissue expansion is a result of the formation of adipocytes (several processes collectively referred to as adipogenesis) and cellular accumulation of triacylglycerols inside lipid droplets. In mammals, different anatomical depots are metabolically distinct. The molecular and cellular mechanisms underlying adipose tissue development have been characterized in mammalian models, whereas information in avian species is scarce...
October 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28938749/the-testicular-transcriptome-associated-with-spermatogonia-differentiation-initiated-by-gonadotrophin-stimulation-in-the-juvenile-rhesus-monkey-macaca-mulatta
#2
Suresh Ramaswamy, William H Walker, Paula Aliberti, Rahil Sethi, Gary R Marshall, Alyxzandria Smith, Seyedmehdi Nourashrafeddin, Alicia Belgorosky, Uma R Chandran, Mark P Hedger, Tony M Plant
STUDY QUESTION: What is the genetic landscape within the testis of the juvenile rhesus monkey (Macaca mulatta) that underlies the decision of undifferentiated spermatogonia to commit to a pathway of differentiation when puberty is induced prematurely by exogenous LH and FSH stimulation? SUMMARY ANSWER: Forty-eight hours of gonadotrophin stimulation of the juvenile monkey testis resulted in the appearance of differentiating B spermatogonia and the emergence of 1362 up-regulated and 225 down-regulated testicular mRNAs encoding a complex network of proteins ranging from enzymes regulating Leydig cell steroidogenesis to membrane receptors, and from juxtacrine and paracrine factors to transcriptional factors governing spermatogonial stem cell fate...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28938696/the-molecular-mechanisms-of-chemoresistance-in-cancers
#3
REVIEW
Hua-Chuan Zheng
Overcoming intrinsic and acquired drug resistance is a major challenge in treating cancer patients because chemoresistance causes recurrence, cancer dissemination and death. This review summarizes numerous molecular aspects of multi-resistance, including transporter pumps, oncogenes (EGFR, PI3K/Akt, Erk and NF-κB), tumor suppressor gene (p53), mitochondrial alteration, DNA repair, autophagy, epithelial-mesenchymal transition (EMT), cancer stemness, and exosome. The chemoresistance-related proteins are localized to extracellular ligand, membrane receptor, cytosolic signal messenger, and nuclear transcription factors for various events, including proliferation, apoptosis, EMT, autophagy and exosome...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938596/vitamin-d3-induces-vitamin-d-receptor-and-hdac11-binding-to-relieve-the-promoter-of-the-tight-junction-proteins
#4
Feng-Hua Liu, Shan-Shan Li, Xiao-Xi Li, Shuai Wang, Mao-Gang Li, Li Guan, Tian-Gang Luan, Zhi-Gang Liu, Zhan-Ju Liu, Ping-Chang Yang
Intestinal epithelial barrier dysfunction and vitamin D (VitD)-deficiency play a critical role in a large number of diseases. The histone deacetylases (HDAC) are associated with a large number of immune diseases. This study tests a hypothesis that the interaction between VitD and HDAC is associated with the regulation of epithelial barrier functions. In this study, human intestinal epithelial cell line, T84 cells, was cultured into monolayers to be used as a model to test the epithelial barrier functions. We observed that in a VitD-deficient environment, the T84 monolayer barrier function was compromised...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938587/transcriptomic-profiles-of-human-foreskin-fibroblast-cells-in-response-to-orf-virus
#5
Daxiang Chen, Mingjian Long, Bin Xiao, Yufeng Xiong, Huiqin Chen, Yu Chen, Zhenzhan Kuang, Ming Li, Yingsong Wu, Daniel L Rock, Daoyuan Gong, Yong Wang, Haijian He, Fang Liu, Shuhong Luo, Wenbo Hao
Orf virus has been utilized as a safe and efficient viral vector against not only diverse infectious diseases, but also against tumors. However, the nature of the genes triggered by the vector in human cells is poorly characterized. Using RNA sequencing technology, we compared specific changes in the transcriptomic profiles in human foreskin fibroblast cells following infection by the orf virus. The results indicated that orf virus upregulates or downregulates expression of a variety of genes, including genes involved in antiviral immune response, apoptosis, cell cycle and a series of signaling pathways, such as the IFN and p53-signaling pathways...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938560/inflammatory-factor-tnf-%C3%AE-promotes-the-growth-of-breast-cancer-via-the-positive-feedback-loop-of-tnfr1-nf-%C3%AE%C2%BAb-and-or-p38-p-stat3-hbxip-tnfr1
#6
Xiaoli Cai, Can Cao, Jiong Li, Fuquan Chen, Shuqin Zhang, Bowen Liu, Weiying Zhang, Xiaodong Zhang, Lihong Ye
In the connection between inflammation and cancer development, tumor necrosis factor-alpha (TNF-α) contributes to the tumorigenesis. However, the underlying mechanism remains poorly understood. In this study, we report that TNF-α enhances the growth of breast cancer through up-regulation of oncoprotein hepatitis B X-interacting protein (HBXIP). Our data showed that the levels of TNF-α were positively related to those of HBXIP in clinical breast cancer tissues. Moreover, TNF-α could up-regulate HBXIP in breast cancer cells...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938492/a-long-noncoding-rna-lncrna-amhr2-plays-a-role-in-amhr2-gene-activation-in-mouse-ovarian-granulosa-cells
#7
Atsushi P Kimura, Ryoma Yoneda, Misuzu Kurihara, Shota Mayama, Shin Matsubara
Anti-Müllerian hormone (AMH) is critical to the regression of Müllerian ducts during mammalian male differentiation and targets ovarian granulosa cells and testicular Sertoli and Leydig cells of adults. Specific effects of AMH are exerted via its receptor, AMH type II receptor (Amhr2), but the mechanism by which the Amhr2 gene is specifically activated is not fully understood. To see whether a proximal promoter was sufficient to Amhr2 gene activation, we generated transgenic mice that bore the enhanced green fluorescent protein (EGFP) gene driven by a 500-bp mouse Amhr2 gene promoter...
September 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938484/long-noncoding-rnas-potential-regulators-involved-in-the-pathogenesis-of-polycystic-ovary-syndrome
#8
Yu-Dong Liu, Ying Li, Shu-Xian Feng, De-Sheng Ye, Xin Chen, Xing-Yu Zhou, Shi-Ling Chen
Polycystic ovary syndrome (PCOS) is the most common cause of anovulatory infertility in women of reproductive age, and its etiology remains poorly understood. Altered activities of long noncoding RNAs (lncRNAs) have been associated with human diseases and development. However, the roles of lncRNAs are unknown in reproductive medicine. We investigated the potential role of lncRNAs in the pathogenesis of PCOS, using human granulosa cells (GCs) and the KGN cell line. We used microarrays to compare lncRNA expression profiles in GCs from 7 PCOS patients and 7 matched women...
August 31, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938459/selective-glucocorticoid-receptor-antagonist-cort125281-activates-brown-adipose-tissue-and-alters-lipid-distribution-in-male-mice
#9
Jan Kroon, Lisa L Koorneef, Jose K van den Heuvel, Cristy R C Verzijl, Nienke M van de Velde, Isabel M Mol, Hetty C M Sips, Hazel Hunt, Patrick C N Rensen, Onno C Meijer
Glucocorticoids influence a wide range of metabolic processes in the human body and excessive glucocorticoid exposure is known to contribute to the development of metabolic disease. We evaluated the utility of the novel glucocorticoid receptor (GR) antagonist CORT125281 for its potential to overcome adiposity, glucose intolerance and dyslipidaemia, and compared this head-to-head with classic GR antagonist RU486 (mifepristone). We show that, while RU486 displays cross-reactivity to the progesterone and androgen receptor, CORT125281 selectively inhibits GR transcriptional activity...
September 18, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938454/11%C3%AE-hsd2-sumoylation-modulates-cortisol-induced-mineralocorticoid-receptor-nuclear-translocation-independently-of-effects-on-transactivation
#10
Rubén Jiménez-Canino, Fabián Lorenzo-Díaz, Alex Odermatt, Matthew A Bailey, Dawn E W Livingstone, Frederic Jaisser, Nicolette Farman, Diego Alvarez de la Rosa
The enzyme 11β-hydroxysteroid dehydrogenase type 2 (11β-HSD2) has an essential role in aldosterone target tissues, conferring aldosterone selectivity for the mineralocorticoid receptor (MR) by converting 11β-hydroxyglucocorticoids to inactive 11-ketosteroids. Congenital deficiency of 11β-HSD2 causes a form of salt-sensitive hypertension known as the syndrome of apparent mineralocorticoid excess. The disease phenotype, which ranges from mild to severe, correlates well with reduction in enzyme activity. Furthermore, polymorphisms in the 11β-HSD2 coding gene (HSD11B2) have been linked to high blood pressure and salt-sensitivity, major cardiovascular risk factors...
September 15, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938430/role-of-the-bile-acid-transporter-slc10a1-in-liver-targeting-of-the-lipid-lowering-thyroid-hormone-analog-eprotirome
#11
Simone Kersseboom, Anja L M van Gucht, Alies van Mullem, Giulia Brigante, Stefania Farina, Bo Carlsson, Joanne M Donkers, Stan F J van de Graaf, Robin P Peeters, Theo J Visser
The thyroid hormone (TH) analog eprotirome (KB2115; 3-[[3,5-dibromo-4-[4-hydroxy-3-(1-methylethyl)-phenoxy]-phenyl]-amino]-3-oxopropanoic acid) was developed to lower cholesterol through selective activation of the T3 receptor isoform TRβ1 in the liver. Interestingly, eprotirome shows low uptake in non-hepatic tissues, explaining its lipid-lowering action without adverse extra-hepatic thyromimetic effects. Clinical trials have shown marked decreases in serum cholesterol levels.We explored the transport of eprotirome across the plasma membrane by members of three TH transporter families: monocarboxylate transporters MCT8 and 10, Na-independent organic anion transporters OATP1A2, 1B1, 1B3, 1C1, 2A1 and 2B1, and Na-dependent organic anion transporters SLC10A1-7...
August 17, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938124/the-kinetochore-receptor-for-the-cohesin-loading-complex
#12
Stephen M Hinshaw, Vasso Makrantoni, Stephen C Harrison, Adèle L Marston
The ring-shaped cohesin complex brings together distant DNA domains to maintain, express, and segregate the genome. Establishing specific chromosomal linkages depends on cohesin recruitment to defined loci. One such locus is the budding yeast centromere, which is a paradigm for targeted cohesin loading. The kinetochore, a multiprotein complex that connects centromeres to microtubules, drives the recruitment of high levels of cohesin to link sister chromatids together. We have exploited this system to determine the mechanism of specific cohesin recruitment...
September 21, 2017: Cell
https://www.readbyqxmd.com/read/28938016/a-feed-forward-regulation-of-endothelin-receptors-by-c-jun-in-human-non-pigmented-ciliary-epithelial-cells-and-retinal-ganglion-cells
#13
Junming Wang, Hai-Ying Ma, Raghu R Krishnamoorthy, Thomas Yorio, Shaoqing He
c-Jun, c-Jun N-terminal kinase(JNK) and endothelin B (ETB) receptor have been shown to contribute to the pathogenesis of glaucoma. Previously, we reported that an increase of c-Jun and CCAAT/enhancer binding protein β (C/EBPβ) immunohistostaining is associated with upregulation of the ETB receptor within the ganglion cell layer of rats with elevated intraocular pressure (IOP). In addition, both transcription factors regulate the expression of the ETB receptor in human non-pigmented ciliary epithelial cells (HNPE)...
2017: PloS One
https://www.readbyqxmd.com/read/28938007/neuropilin-1-modulates-tgf%C3%AE-signaling-to-drive-glioblastoma-growth-and-recurrence-after-anti-angiogenic-therapy
#14
Sam C Kwiatkowski, Paola A Guerrero, Shinya Hirota, Zhihua Chen, John E Morales, Manish Aghi, Joseph H McCarty
Glioblastoma (GBM) is a rapidly progressive brain cancer that exploits the neural microenvironment, and particularly blood vessels, for selective growth and survival. Anti-angiogenic agents such as the vascular endothelial growth factor-A (VEGF-A) blocking antibody bevacizumab yield short-term benefits to patients due to blood vessel regression and stabilization of vascular permeability. However, tumor recurrence is common, and this is associated with acquired resistance to bevacizumab. The mechanisms that drive acquired resistance and tumor recurrence in response to anti-angiogenic therapy remain largely unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28937943/multiomics-analysis-of-tumor-microenvironment-reveals-gata2-and-mirna-124-3p-as-potential-novel-biomarkers-in-ovarian-cancer
#15
Esra Gov, Medi Kori, Kazim Yalcin Arga
Ovarian cancer is a common and, yet, one of the most deadly human cancers due to its insidious onset and the current lack of robust early diagnostic tests. Tumors are complex tissues comprised of not only malignant cells but also genetically stable stromal cells. Understanding the molecular mechanisms behind epithelial-stromal crosstalk in ovarian cancer is a great challenge in particular. In the present study, we performed comparative analyses of transcriptome data from laser microdissected epithelial, stromal, and ovarian tumor tissues, and identified common and tissue-specific reporter biomolecules-genes, receptors, membrane proteins, transcription factors (TFs), microRNAs (miRNAs), and metabolites-by integration of transcriptome data with genome-scale biomolecular networks...
September 22, 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28936781/coordinate-expression-of-pan-neuronal-and-functional-signature-genes-in-sympathetic-neurons
#16
U Ernsberger, M Kramer, K Tsarovina, T Deller, H Rohrer
Neuron subtypes of the mature nervous system differ in the expression of characteristic marker genes while they share the expression of generic neuronal genes. The regulatory logic that maintains subtype-specific and pan-neuronal genes is not well understood. To begin to address this issue, we analyze RNA sequencing results from whole sympathetic ganglia and single sympathetic neurons in the mouse. We focus on gene products involved in the neuronal cytoskeleton, neurotransmitter synthesis and storage, transmitter release and reception and electrical information processing...
September 21, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28936224/role-of-crrlk1l-cell-wall-sensors-hercules1-and-2-theseus1-and-feronia-in-growth-adaptation-triggered-by-heavy-metals-and-trace-elements
#17
Julia Richter, Marie Ploderer, Gaëlle Mongelard, Laurent Gutierrez, Marie-Theres Hauser
Cell walls are not only a protective barrier surrounding protoplasts but serve as signaling platform between the extracellular environment and the intracellular physiology. Ions of heavy metals and trace elements, summarized to metal ions, bind to cell wall components, trigger their modification and provoke growth responses. To examine if metal ions trigger cell wall sensing receptor like kinases (RLKs) of the Catharanthus roseus RLK1-like (CrRLK1L) family we employed a molecular genetic approach. Quantitative transcription analyses show that HERCULES1 (HERK1), THESEUS1 (THE1), and FERONIA (FER) were differently regulated by cadmium (Cd), nickel (Ni), and lead (Pb)...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28936215/omics-approaches-for-understanding-grapevine-berry-development-regulatory-networks-associated-with-endogenous-processes-and-environmental-responses
#18
REVIEW
Alejandra Serrano, Carmen Espinoza, Grace Armijo, Claudio Inostroza-Blancheteau, Evelyn Poblete, Carlos Meyer-Regueiro, Anibal Arce, Francisca Parada, Claudia Santibáñez, Patricio Arce-Johnson
Grapevine fruit development is a dynamic process that can be divided into three stages: formation (I), lag (II), and ripening (III), in which physiological and biochemical changes occur, leading to cell differentiation and accumulation of different solutes. These stages can be positively or negatively affected by multiple environmental factors. During the last decade, efforts have been made to understand berry development from a global perspective. Special attention has been paid to transcriptional and metabolic networks associated with the control of grape berry development, and how external factors affect the ripening process...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28936162/rna-sequencing-analysis-reveals-a-regulatory-role-for-transcription-factor-fezf2-in-the-mature-motor-cortex
#19
Alison J Clare, Hollie E Wicky, Ruth M Empson, Stephanie M Hughes
Forebrain embryonic zinc finger (Fezf2) encodes a transcription factor essential for the specification of layer 5 projection neurons (PNs) in the developing cerebral cortex. As with many developmental transcription factors, Fezf2 continues to be expressed into adulthood, suggesting it remains crucial to the maintenance of neuronal phenotypes. Despite the continued expression, a function has yet to be explored for Fezf2 in the PNs of the developed cortex. Here, we investigated the role of Fezf2 in mature neurons, using lentiviral-mediated delivery of a shRNA to conditionally knockdown the expression of Fezf2 in the mouse primary motor cortex (M1)...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28935859/a-non-transcriptional-role-for-the-glucocorticoid-receptor-in-mediating-the-cell-stress-response
#20
Marina Ptushkina, Toryn Poolman, Mudassar Iqbal, Mark Ashe, Janni Petersen, Joanna Woodburn, Magnus Rattray, Anthony Whetton, David Ray
The glucocorticoid receptor (GR) is essential for the stress response in mammals. We investigated potential non-transcriptional roles of GR in cellular stress response using fission yeast as a model.We surprisingly discovered marked heat stress resistance in yeast ectopically expressing human GR, which required expression of both the N-terminal transactivation domain, and the C-terminal ligand binding domain, but not the DNA-binding domain of the GR. This effect was not affected by GR ligand exposure, and occurred without significant GR nuclear accumulation...
September 21, 2017: Scientific Reports
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