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https://www.readbyqxmd.com/read/28109105/-effect-of-heat-exposure-in-the-second-trimester-of-pregnancy-on-intrauterine-growth-of-fatal-rat-and-the-expression-of-hsp70-bax-and-bcl-2-of-placenta
#1
Yong-Bao Peng, Shu-Hui Huang, Jun-Ming Zhang, Yong Luo, Qun Zhou, Huai Liu
OBJECTIVE: To investigate the effect of heat exposure during the second week of pregnancy on placental development and intrauterine growth of fetal rats. METHODS: 24 pregnant rats were either exposed or not to a temperature of 35∓1 degrees celsius; during the second week of pregnancy. The body weight gain of the pregnant rats was measured regularly, and in late pregnancy, the pregnant rats were dissected and the number, weight, length, tail length, appearance of the offspring rats, number of live and still births, and the placental weight were recorded...
January 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28109085/silencing-of-interferon-induced-transmembrane-protein-1-ifitm1-inhibits-proliferation-migration-and-invasion-in-lung-cancer-cells
#2
Bing Jin, Hua Jin, Jing Wang
Interferon-induced transmembrane protein 1 (IFITM1), a 17-kDa membrane protein, is largely known as a player in many cellular functions. Recently, there have been studies showing overexpression of IFITM1 in cancers and a positive correlation of IFITM1 overexpression with tumor progression. However, it is poorly understood what role IFITM1 plays in lung cancer. In this study, we presented evidence that IFITM1 was highly expressed in lung cancer tissues and cell lines. IFITM1 silencing inhibited lung cancer cell proliferation, migration and invasion <em>in vitro</em>...
January 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28109053/frogs-model-man-in-vivo-thyroid-hormone-signaling-during-development
#3
REVIEW
Laurent M Sachs, Daniel R Buchholz
Thyroid hormone (TH) signaling comprises TH transport across cell membranes, metabolism by deiodinases, and molecular mechanisms of gene regulation. Proper TH signaling is essential for normal perinatal development, most notably for neurogenesis and fetal growth. Knowledge of perinatal TH endocrinology needs improvement to provide better treatments for premature infants and endocrine diseases during gestation and to counteract effects of endocrine disrupting chemicals. Studies in amphibians have provided major insights to understand in-vivo mechanisms of TH signaling...
January 21, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28109049/production-of-the-antibiotic-secondary-metabolite-solanapyrone-a-by-the-fungal-plant-pathogen-ascochyta-rabiei-during-fruiting-body-formation-in-saprobic-growth
#4
Wonyong Kim, Jeong-Jin Park, Frank M Dugan, Tobin L Peever, David R Gang, George Vandemark, Weidong Chen
Fungi are noted producers of a diverse array of secondary metabolites, many of which are of pharmacological importance. However, the biological roles of the vast majority of these molecules during the fungal life cycle in nature remain elusive. Solanapyrones are polyketide-derived secondary metabolites produced by diverse fungal species including the plant pathogen Ascochyta rabiei. This molecule was originally thought to function as a phytotoxin facilitating pathogenesis of A. rabiei. Chemical profiling and gene expression studies showed that solanapyrone A was specifically produced during saprobic, but not parasitic growth of A...
January 21, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28108967/specific-sites-of-metastases-in-invasive-lobular-carcinoma-a-retrospective-cohort-study-of-metastatic-breast-cancer
#5
Masayuki Inoue, Hiroshi Nakagomi, Haruka Nakada, Kazushige Furuya, Kou Ikegame, Hideki Watanabe, Masao Omata, Toshio Oyama
BACKGROUND: Invasive lobular carcinoma (ILC) is known to be the second most common histological type following invasive ductal carcinoma (IDC). Definitive clinical features of ILC are controversial. METHODS: We retrospectively analyzed a cohort of 330 patients with metastatic breast cancer, 303 of IDC, 19 of ILC, and 8 of others. We compared the patient age and tumor-node-metastasis factors, disease-free survival (DFS), estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor 2 (HER2) expression at the primary site between ILC and IDC...
January 20, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28108965/transcriptomic-and-hormone-analyses-reveal-mechanisms-underlying-petal-elongation-in-chrysanthemum-morifolium-jinba
#6
Jingjing Wang, Haibin Wang, Lian Ding, Aiping Song, Feng Shen, Jiafu Jiang, Sumei Chen, Fadi Chen
Auxin regulates chrysanthemum petal elongation by promoting cell elongation. Transcriptomic analysis shows that auxin signal transduction may connect with other transcription factors by TCPs to regulate chrysanthemum petal elongation. As an ornamental species, Chrysanthemum morifolium has high ornamental and economic value. Petal size is the primary factor that influences the ornamental value of chrysanthemum, but the mechanism underlying the development of C. morifolium petals remains unclear. In our study, we tracked the growth of petals and found that the basal region of 'Jinba' petals showed a higher elongation rate, exhibiting rapid cell elongation during petal growth...
January 20, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28108915/microbial-changes-linked-to-the-accelerated-degradation-of-the-herbicide-atrazine-in-a-range-of-temperate-soils
#7
R L Yale, M Sapp, C J Sinclair, J W B Moir
Accelerated degradation is the increased breakdown of a pesticide upon its repeated application, which has consequences for the environmental fate of pesticides. The herbicide atrazine was repeatedly applied to soils previously untreated with s-triazines for >5 years. A single application of atrazine, at an agriculturally relevant concentration, was sufficient to induce its rapid dissipation. Soils, with a range of physico-chemical properties and agricultural histories, showed similar degradation kinetics, with the half-life of atrazine decreasing from an average of 25 days after the first application to <2 days after the second...
January 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28108904/intravitreal-anti-vegf-treatment-for-subretinal-neovascularisation-secondary-to-type-2-idiopathic-juxtafoveolar-telangiectasia
#8
Teresa Barth, Florian Zeman, Horst Helbig, Maria-Andreea Gamulescu
PURPOSE: To assess the long-term outcome of patients with subretinal neovascular membrane (SRNVM) secondary to type 2 idiopathic juxtafoveolar telangiectasia (IJT) receiving intravitreal anti-VEGF (vascular endothelial growth factor) injections. METHODS: A total of 14 eyes of 12 patients treated with intravitreal anti-VEGF for SRNVM related to type 2 IJT were retrospectively assessed. RESULTS: Nine men and 3 women with a mean age of 66 years (SD 12, range 47-87 years) were diagnosed with IJT-related SRNVM...
January 21, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28108886/phase-behaviour-in-complementary-dna-coated-gold-nanoparticles-and-fd-viruses-mixtures-a-numerical-study
#9
Massimiliano Chiappini, Erika Eiser, Francesco Sciortino
A new gel-forming colloidal system based on a binary mixture of fd-viruses and gold nanoparticles functionalized with complementary DNA single strands has been recently introduced. Upon quenching below the DNA melt temperature, such a system results in a highly porous gel state, that may be developed in a new functional material of tunable porosity. In order to shed light on the gelation mechanism, we introduce a model closely mimicking the experimental one and we explore via Monte Carlo simulations its equilibrium phase diagram...
January 2017: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/28108843/ets-transcription-factors-etv2-and-fli1b-are-required-for-tumor-angiogenesis
#10
Kristina Baltrunaite, Michael P Craig, Sharina Palencia Desai, Praneet Chaturvedi, Ram Naresh Pandey, Rashmi S Hegde, Saulius Sumanas
ETS transcription factor ETV2/Etsrp functions as a key regulator of embryonic vascular development in multiple vertebrates. However, its role in pathological vascular development has not been previously investigated. To analyze its role in tumor angiogenesis, we utilized a zebrafish xenotransplantation model. Using a photoconvertible kdrl:NLS-KikGR line, we demonstrated that all tumor vessels originate from the existing embryonic vasculature by the mechanism of angiogenesis. Xenotransplantation of mouse B16 melanoma cells resulted in a significant increase in expression of the ETS transcription factors etv2 and fli1b expression throughout the embryonic vasculature...
January 20, 2017: Angiogenesis
https://www.readbyqxmd.com/read/28108836/smad-dependent-signaling-plays-a-detrimental-role-in-a-fly-model-of-smarcb1-deficiency-and-the-biology-of-atypical-teratoid-rhabdoid-tumors
#11
Astrid Jeibmann, Jacqueline Schulz, Kristin Eikmeier, Pascal D Johann, Katharina Thiel, Isabel Tegeder, Oliver Ambrée, Michael C Frühwald, Stefan M Pfister, Marcel Kool, Werner Paulus, Martin Hasselblatt
Atypical teratoid/rhabdoid tumors (ATRT) are highly malignant brain tumors arising in young children. The majority of ATRT is characterized by inactivation of the chromatin remodeling complex member SMARCB1 (INI1/hSNF5). Little is known, however, on downstream pathways involved in the detrimental effects of SMARCB1 deficiency which might also represent targets for treatment. Using Drosophila melanogaster and the Gal4-UAS system, modifier screens were performed in order to identify the role of SMAD dependent signaling in the lethal phenotype associated with knockdown of snr1, the fly homolog of SMARCB1...
January 20, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28108801/phosphorylation-implications-in-cancer
#12
REVIEW
Vishakha Singh, Mahendra Ram, Rajesh Kumar, Raju Prasad, Birendra Kumar Roy, Kaushal Kumar Singh
Post translational modifications (PTMs) are involved in variety of cellular activities and phosphorylation is one of the most extensively studied PTM, which regulates a number of cellular functions like cell growth, differentiation, apoptosis and cell signaling in healthy condition. However, alterations in phosphorylation pathways result in serious outcomes in the form of diseases, especially cancer. Many signalling pathways including Tyrosine kinase, MAP kinase, Cadherin-catenin complex, Cyclin-dependent kinase etc...
January 20, 2017: Protein Journal
https://www.readbyqxmd.com/read/28108672/stromal-interaction-molecule-1-stim1-regulates-growth-cell-cycle-and-apoptosis-of-human-tongue-squamous-carcinoma-cells
#13
Xiaobo Cui, Laixiao Song, Yunfei Bai, Yaping Wang, Boqian Wang, Wei Wang
Oral tongue squamous carcinoma (OTSCC) is the most common type of cancer of oral carcinomas. However, the molecular mechanism by which OTSCC development is not fully identified. Stromal interaction molecule 1 (STIM1) is a transmembrane protein, mainly located in the endoplasmic reticulum (ER). STIM1 is involved in several types of cancers. Here we report that STIM1 contributes to the development of human OTSCC. We knocked down STIM1 in OTSCC cell line Tca-8113 with lentivirus-mediated shRNA and found that SITM1 knockdown repressed the proliferation of Tca-8113 cells...
January 20, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28108646/postnatal-resveratrol-supplementation-improves-cardiovascular-function-in-male-and-female-intrauterine-growth-restricted-offspring
#14
Amin Shah, Anita Quon, Jude S Morton, Sandra T Davidge
Intrauterine growth restriction (IUGR) may predispose offspring to an increased susceptibility of developing cardiovascular disease (CVD) in adult life. The window of opportunity to treat later life CVD programmed in fetal life is critical. The aim of this study was to identify the effect of resveratrol treatment of IUGR offspring at a time of known CV dysfunction. Sprague-Dawley male and female rat offspring who experienced normoxia (21% O2; control) or hypoxia (11% O2; IUGR) in utero were fed a high-fat (HF) diet (3-21 weeks of age) or a HF diet (3-21 weeks of age) supplemented with resveratrol from 13 to 21 weeks of age...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28108624/inflammatory-molecule-psgl-1-deficiency-activates-macrophages-to-promote-colorectal-cancer-growth-through-nf-kappab-signaling
#15
Jiangchao Li, Zeqi Zhou, Xiaohan Zhang, Li Zheng, Dan He, Yuxiang Ye, Qian-Qian Zhang, Cui-Ling Qi, Xiao-Dong He, Chen Yu, Chun-Kui Shao, Liang Qiao, Lijing Wang
: P-selectin glycoprotein ligand 1 (SELPLG/PSGL-1) is an inflammatory molecule that is functionally related to immune cell differentiation and leukocyte mobilization. However, the role of PSGL-1 in tumor development remains unknown. Therefore, this study investigates the mechanistic role of PSGL-1 in the development of intestinal tumors in colorectal cancer (CRC). ApcMin/+ mice, are highly susceptible to spontaneous intestinal adenoma formation, and were crossbred with PSGL1-null mice to generate compound transgenic mice with a ApcMin/+;PSGL-1-/- genotype...
January 20, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28108607/insulin-like-growth-factor-binding-protein-1-could-improve-glucose-regulation-and-insulin-sensitivity-through-its-rgd-domain
#16
Natalie J Haywood, Paul A Cordell, Kar Yeun Tang, Natallia Makova, Nadira Y Yuldasheva, Helen Imrie, Hema Viswambharan, Alexander F Bruns, Richard M Cubbon, Mark T Kearney, Stephen B Wheatcroft
Low circulating levels of insulin-like growth factor binding protein 1 (IGFBP-1) are associated with insulin resistance and predict the development of type 2 diabetes. IGFBP-1 can affect cellular functions independently of IGF binding through an Arg-Gly-Asp (RGD) integrin-binding motif. Whether causal mechanisms underlie the favorable association of high IGFBP-1 levels with insulin sensitivity and whether these could be exploited therapeutically remain unexplored. We used recombinant IGFBP-1 and a synthetic RGD-containing hexapeptide in complementary in vitro signaling assays and in vivo metabolic profiling in obese mice to investigate the effects of IGFBP-1 and its RGD domain on insulin sensitivity, insulin secretion, and whole-body glucose regulation...
February 2017: Diabetes
https://www.readbyqxmd.com/read/28108510/bone-metastasis-of-prostate-cancer-can-be-therapeutically-targeted-at-the-tbx2-wnt-signaling-axis
#17
Srinivas Nandana, Manisha Tripathi, Peng Duan, Chia-Yi Chu, Rajeev Mishra, Chunyan Liu, Renjie Jin, Hironobu Yamashita, Majd Zayzafoon, Neil A Bhowmick, Haiyen E Zhau, Robert J Matusik, Leland W K Chung
Identification of factors that mediate visceral and bone metastatic spread and subsequent bone remodeling events is highly relevant to successful therapeutic intervention in advanced human prostate cancer (PCa). TBX2, a T-box family transcription factor that negatively regulates cell cycle inhibitor p21, plays critical roles during embryonic development, and recent studies have highlighted its role in cancer. Here we report that TBX2 is overexpressed in human PCa specimens and bone metastases from xenograft mouse models of human PCa...
January 20, 2017: Cancer Research
https://www.readbyqxmd.com/read/28108486/regulation-of-the-immune-response-by-tgf-%C3%AE-from-conception-to-autoimmunity-and-infection
#18
Shomyseh Sanjabi, Soyoung A Oh, Ming O Li
Transforming growth factor β (TGF-β) is a pleiotropic cytokine involved in both suppressive and inflammatory immune responses. After 30 years of intense study, we have only begun to elucidate how TGF-β alters immunity under various conditions. Under steady-state conditions, TGF-β regulates thymic T-cell selection and maintains homeostasis of the naïve T-cell pool. TGF-β inhibits cytotoxic T lymphocyte (CTL), Th1-, and Th2-cell differentiation while promoting peripheral (p)Treg-, Th17-, Th9-, and Tfh-cell generation, and T-cell tissue residence in response to immune challenges...
January 20, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28108485/tgf-%C3%AE-family-signaling-in-embryonic-and-somatic-stem-cell-renewal-and-differentiation
#19
Alan C Mullen, Jeffrey L Wrana
Soon after the discovery of transforming growth factor-β (TGF-β), seminal work in vertebrate and invertebrate models revealed the TGF-β family to be central regulators of tissue morphogenesis. Members of the TGF-β family direct some of the earliest cell-fate decisions in animal development, coordinate complex organogenesis, and contribute to tissue homeostasis in the adult. Here, we focus on the role of the TGF-β family in mammalian stem-cell biology and discuss its wide and varied activities both in the regulation of pluripotency and in cell-fate commitment...
January 20, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28108477/quantitative-microscopy-uncovers-ploidy-changes-during-mitosis-in-live-drosophila-embryos-and-their-effect-on-nuclear-size
#20
Wee Choo Puah, Rambabu Chinta, Martin Wasser
Time-lapse microscopy is a powerful tool to investigate cellular and developmental dynamics. In Drosophila melanogaster, it can be used to study division cycles in embryogenesis. To obtain quantitative information from 3D time-lapse data and track proliferating nuclei from the syncytial stage until gastrulation, we developed an image analysis pipeline consisting of nuclear segmentation, tracking, annotation and quantification. Image analysis of maternal-haploid (mh) embryos revealed that a fraction of haploid syncytial nuclei fused to give rise to nuclei of higher ploidy (2n, 3n, 4n)...
January 20, 2017: Biology Open
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