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https://www.readbyqxmd.com/read/28793908/transcriptomic-analysis-comparing-mouse-strains-with-extreme-total-lung-capacities-identifies-novel-candidate-genes-for-pulmonary-function
#1
Leema George, Ankita Mitra, Tania A Thimraj, Martin Irmler, Sangeetha Vishweswaraiah, Lars Lunding, Dorothea Hühn, Alicia Madurga, Johannes Beckers, Heinz Fehrenbach, Swapna Upadhyay, Holger Schulz, George D Leikauf, Koustav Ganguly
BACKGROUND: Failure to attain peak lung function by early adulthood is a risk factor for chronic lung diseases. Previously, we reported that C3H/HeJ mice have about twice total lung capacity (TLC) compared to JF1/MsJ mice. We identified seven lung function quantitative trait loci (QTL: Lfnq1-Lfnq7) in backcross/intercross mice derived from these inbred strains. We further demonstrated, superoxide dismutase 3, extracellular (Sod3), Kit oncogene (Kit) and secreted phosphoprotein 1 (Spp1) located on these Lfnqs as lung function determinants...
August 9, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28776597/corrigendum-testis-specific-transcriptional-regulators-selectively-occupy-boris-bound-ctcf-target-regions-in-mouse-male-germ-cells
#2
Samuel Rivero-Hinojosa, Sungyun Kang, Victor V Lobanenkov, Gabriel E Zentner
This corrects the article DOI: 10.1038/srep41279.
August 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28775379/tia1-is-a-gender-specific-disease-modifier-of-a-mild-mouse-model-of-spinal-muscular-atrophy
#3
Matthew D Howell, Eric W Ottesen, Natalia N Singh, Rachel L Anderson, Joonbae Seo, Senthilkumar Sivanesan, Elizabeth M Whitley, Ravindra N Singh
Spinal muscular atrophy (SMA) is caused by deletions or mutations of Survival Motor Neuron 1 (SMN1) gene. The nearly identical SMN2 cannot compensate for SMN1 loss due to exon 7 skipping. The allele C (C (+/+)) mouse recapitulates a mild SMA-like phenotype and offers an ideal system to monitor the role of disease-modifying factors over a long time. T-cell-restricted intracellular antigen 1 (TIA1) regulates SMN exon 7 splicing. TIA1 is reported to be downregulated in obese patients, although it is not known if the effect is gender-specific...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28768794/embryonic-stem-cell-derived-germ-cells-induce-spermatogenesis-following-transplantation-to-testis-of-adult-mouse-azoospermia-model
#4
Zohreh Makoolati, Mansoureh Movahedin, Mehdi Forouzandeh-Moghadam, Majid Naghdi, Morteza Koruji
This study aimed to (a) identify the exogenous factors that allow in vitro differentiation of mouse SSCs from embryonic stem cells (ESCs); (b) evaluate the effects of Sertoli cells on SSCs enrichment; and (c) to assess the success of transplantation using in vitro differentiated SSCs in mouse busulfan-treated azoospermia model. One-day-old embryoid body (EB) received 5 ng/ml BMP4 for 4 days, 3 µM retinoic acid (RA) in STO co-culture (Co-C) system for 7 days and subsequently co-cultured for 2 days with Sertoli cell in the presence or absence of LIF, bFGF and RA composition and in the presence of these factors in the simple culture media...
August 2, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28763629/the-contribution-of-p53-and-y-chromosome-long-arm-genes-to-regulation-of-apoptosis-in-mouse-testis
#5
Tomasz Lech, Józefa Styrna, Katarzyna Kotarska
Apoptosis of excessive or defective germ cells is a natural process occurring in mammalian testes. Tumour suppressor protein p53 is involved in this process both in developing and adult male gonads. Its contribution to testicular physiology is known to be modified by genetic background. The aim of this study was to evaluate the combined influence of the p53 and Y chromosome long arm genes on male germ cell apoptosis. Knockout of the transformation related protein 53 (Trp53) gene was introduced into congenic strains: B10...
August 2, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28760667/cell-adhesion-molecules-expression-pattern-indicates-that-somatic-cells-arbitrate-gonadal-sex-of-differentiating-bipotential-fetal-mouse-gonad
#6
Rafal P Piprek, Michal Kolasa, Dagmara Podkowa, Malgorzata Kloc, Jacek Z Kubiak
Unlike other organ anlagens, the primordial gonad is sexually bipotential in all animals. In mouse, the bipotential gonad differentiates into testis or ovary depending on the genetic sex (XY or XX) of the fetus. During gonad development cells segregate, depending on genetic sex, into distinct compartments: testis cords and interstitium form in XY gonad, and germ cell cysts and stroma in XX gonad. However, our knowledge of mechanisms governing gonadal sex differentiation remains very vague. Because it is known that adhesion molecules (CAMs) play a key role in organogenesis, we suspected that diversified expression of CAMs should also play a crucial role in gonad development...
July 28, 2017: Mechanisms of Development
https://www.readbyqxmd.com/read/28754604/regulation-of-fetal-male-germ-cell-development-by-members-of-the-tgf%C3%AE-superfamily
#7
Cassy Spiller, Guillaume Burnet, Josephine Bowles
There is now substantial evidence that members of the transforming growth factor-β (TGFβ family) regulate germ cell development in the mouse fetal testis. Correct development of germ cells during fetal life is critical for establishment of effective spermatogenesis and for avoiding the formation of testicular germ cell cancer in later life. Here we consider the evidence for involvement of various TGFβ family members, attempt to reconcile discrepancies and clarify what we believe to be the likely in vivo roles of these factors...
July 19, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28748255/cellular-and-subcellular-localization-of-adp-ribosylation-factor-6-in-mouse-peripheral-tissues
#8
Osamu Katsumata, Momoko Mori, Yusuke Sawane, Tomoko Niimura, Akiko Ito, Hirotsugu Okamoto, Masahiro Fukaya, Hiroyuki Sakagami
ADP-ribosylation factor 6 (Arf6) is a small GTPase that regulates endosomal trafficking and actin cytoskeleton remodeling. In the present study, we comprehensively examined the cellular and subcellular localization of Arf6 in adult mouse peripheral tissues by immunofluorescence and immunoelectron microscopy using the heat-induced antigen retrieval method with Tris-EDTA buffer (pH 9.0). Marked immunolabeling of Arf6 was observed particularly in epithelial cells of several tissues including the esophagus, stomach, small and large intestines, trachea, kidney, epididymis, oviduct, and uterus...
July 26, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28748208/dataset-of-sgo1-expression-in-cardiac-gastrointestinal-hepatic-and-neuronal-tissue-in-mouse
#9
Andrew T Song, Antonella Galli, Severine Leclerc, Stanley Nattel, Craig Mandato, Gregor Andelfinger
The data shown in this article are related to the research article entitled "Characterization of Sgo1 expression pattern in developing and adult mouse" (Song et al., 2017) [3]. The article provides novel data on Sgo1 gene expression pattern utilizing Sgo1_LacZ_Knock in mouse line and immunohistochemistry in wild type mice. The data presents Sgo1 expression pattern during development, and in post-developmental proliferative and quiescent tissue. The article describes following tissues: developing heart, neural tube, adult colon, cerebellum, cerebral cortex, liver, and testis...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28743739/ip6k1-is-essential-for-chromatoid-body-formation-and-temporal-regulation-of-tnp2-and-prm2-expression-in-mouse-spermatids
#10
Aushaq Bashir Malla, Rashna Bhandari
Inositol hexakisphosphate kinases (IP6Ks) are enzymes that synthesise the inositol pyrophosphate 5-IP7, which is known to regulate several physiological processes. Deletion of IP6K1, but not other IP6K isoforms, causes sterility in male mice. Here, we present a detailed investigation of the specific function of IP6K1 in spermatogenesis. Within the mouse testis, IP6K1 is expressed at high levels in late stage pachytene spermatocytes and in round spermatids. We found IP6K1 to be a novel component of the chromatoid body, a cytoplasmic granule in round spermatids composed of RNA and RNA binding proteins, and noted that this structure is absent in Ip6k1(-/-) round spermatids...
July 25, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28743544/sodium-dependent-organic-anion-transporter-slc10a6-knockout-mice-show-normal-spermatogenesis-and-reproduction-but-elevated-serum-levels-for-cholesterol-sulfate
#11
Katharina Bakhaus, Josefine Bennien, Daniela Fietz, Alberto Sánchez-Guijo, Michaela Hartmann, Rosanna Serafini, Charles C Love, Andrei Golovko, Stefan A Wudy, Martin Bergmann, Joachim Geyer
The sodium-dependent organic anion transporter SOAT (gene name SLC10A6 in man and Slc10a6 in mice) is a plasma membrane transporter for sulfated steroids, which is highly expressed in germ cells of the testis. SOAT can transport biologically inactive sulfated steroids into specific target cells, where they can be reactivated by the steroid sulfatase (STS) to biologically active, unconjugated steroids known to regulate spermatogenesis. Significantly reduced SOAT mRNA expression was previously found in different forms of impaired spermatogenesis in man...
July 22, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28742876/expression-of-uncharacterized-male-germ-cell-specific-genes-and-discovery-of-novel-sperm-tail-proteins-in-mice
#12
Jun Tae Kwon, Sera Ham, Suyeon Jeon, Youil Kim, Seungmin Oh, Chunghee Cho
The identification and characterization of germ cell-specific genes are essential if we hope to comprehensively understand the mechanisms of spermatogenesis and fertilization. Here, we searched the mouse UniGene databases and identified 13 novel genes as being putatively testis-specific or -predominant. Our in silico and in vitro analyses revealed that the expressions of these genes are testis- and germ cell-specific, and that they are regulated in a stage-specific manner during spermatogenesis. We generated antibodies against the proteins encoded by seven of the genes to facilitate their characterization in male germ cells...
2017: PloS One
https://www.readbyqxmd.com/read/28729426/glycerol-3-phosphate-acyltransferase-2-is-essential-for-normal-spermatogenesis
#13
Maria Belen Garcia-Fabiani, Mauro A Montanaro, Pablo Stringa, Ezequiel Lacunza, Elizabeth R Cattaneo, Marianela Santana, Magali Pellon-Maison, Maria R Gonzalez-Baro
Glycerol-3-phosphate acyltransferases (GPAT) catalyze the first and rate-limiting step in the de novo glycerolipid synthesis. The GPAT2 isoform differs from the other isoforms because its expression is restricted to male germ cells and cancer cells. It has been recently reported that GPAT2 expression in mouse testis fluctuates during sexual maturation and that it is regulated by epigenetic mechanisms in combination with vitamin A derivatives. Despite progress made in this field, information about GPAT2 role in the developing male germ cells remains unclear...
July 20, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28727826/germline-and-reproductive-tract-effects-intensify-in-male-mice-with-successive-generations-of-estrogenic-exposure
#14
Tegan S Horan, Alyssa Marre, Terry Hassold, Crystal Lawson, Patricia A Hunt
The hypothesis that developmental estrogenic exposure induces a constellation of male reproductive tract abnormalities is supported by experimental and human evidence. Experimental data also suggest that some induced effects persist in descendants of exposed males. These multi- and transgenerational effects are assumed to result from epigenetic changes to the germline, but few studies have directly analyzed germ cells. Typically, studies of transgenerational effects have involved exposing one generation and monitoring effects in subsequent unexposed generations...
July 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28723571/emi2-is-essential-for-mouse-spermatogenesis
#15
Lakshmi Gopinathan, Radoslaw Szmyd, Diana Low, M Kasim Diril, Heng-Yu Chang, Vincenzo Coppola, Kui Liu, Lino Tessarollo, Ernesto Guccione, Ans M M van Pelt, Philipp Kaldis
The meiotic functions of Emi2, an inhibitor of the APC/C complex, have been best characterized in oocytes where it mediates metaphase II arrest as a component of the cytostatic factor. We generated knockout mice to determine the in vivo functions of Emi2-in particular, its functions in the testis, where Emi2 is expressed at high levels. Male and female Emi2 knockout mice are viable but sterile, indicating that Emi2 is essential for meiosis but dispensable for embryonic development and mitotic cell divisions...
July 18, 2017: Cell Reports
https://www.readbyqxmd.com/read/28697429/bisphenol-a-disrupts-steroidogenesis-and-induces-a-sex-hormone-imbalance-through-c-jun-phosphorylation-in-leydig-cells
#16
Hsin-Chieh Lan, Kai-Yu Wu, I-Wen Lin, Zhi-Jie Yang, Ai-An Chang, Meng-Chun Hu
Bisphenol A (BPA) is a well-known endocrine disrupting chemical (EDC) that is used to manufacture plastic consumer products. It is well known that exposure to BPA can induce defects in gonad development and negatively influences reproductive function in both males and females. In this study, we assessed the effects of BPA on hormone production in Leydig cells, which secrete hormones in the testes and support male fertility. We examined two steroidogenic enzymes, CYP11A1 and CYP19 that involved in sex hormone synthesis in mouse MA-10 Leydig cells...
July 1, 2017: Chemosphere
https://www.readbyqxmd.com/read/28693627/morphofunctional-evaluation-of-the-testis-duration-of-spermatogenesis-and-spermatogenic-efficiency-in-the-japanese-fancy-mouse-mus-musculus-molossinus
#17
Guilherme M J Costa, Marcelo C Leal, Luiz R França
Japanese fancy mouse, mini mouse or pet mouse are common names used to refer to strains of mice that present with different colour varieties and coat types. Although many genetic studies that involve spotting phenotype based on the coat have been performed in these mice, there are no reports of quantitative data in the literature regarding testis structure and spermatogenic efficiency. Hence, in this study we researched testis function and spermatogenesis in the adult Japanese fancy mouse. The following values of 68 ± 6 mg and 0...
July 11, 2017: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/28689241/putative-role-of-an-slc45-h-sugar-cotransporter-in-mammalian-spermatozoa
#18
Olga Vitavska, Helmut Wieczorek
In the present study, we describe the detection and analysis of a novel type of sugar transporter in mammalian spermatozoa. This transporter belongs to the SLC45 family for which two features are remarkable and distinguish it from other known families of sugar transporters. Firstly, SLC45 transporters recognise not only the monosaccharides glucose or fructose but also the disaccharide sucrose as a substrate. Secondly, the uptake of sugars is coupled to a proton gradient. Uptake experiments using radioactively labelled sucrose indicated a functional transporter of the SLC45 family in bull spermatozoa...
July 8, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28680856/sertoli-cells-are-susceptible-to-zikv-infection-in-mouse-testis
#19
Zi-Yang Sheng, Na Gao, Zhao-Yang Wang, Xiao-Yun Cui, De-Shan Zhou, Dong-Ying Fan, Hui Chen, Pei-Gang Wang, Jing An
Flaviviruses including Dengue virus (DENV), Yellow fever virus (YFV), West Nile virus (WNV), and Japanese encephalitis virus (JEV) are global health problems that caused several serious diseases such as fever, hemorrhagic fever, and encephalitis in the past century. Recently, Zika virus (ZIKV) which spreads from Asia to American and causes millions of infections emerges as a new dangerous member of the genus of Flavivirus. Unlike other well-known flaviviruses, ZIKV can be transmitted sexually and infect testes in murine models...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28676534/expression-patterns-of-henmt1-and-piwil1-in-human-testis-implications-for-transposon-expression
#20
Anna-Lena Hempfling, Shu Ly Lim, David Adelson, Jemma Evans, Anne E O'Connor, Zhipeng Qu, Sabine Kliesch, Wolfgang Weidner, M K O'Bryan, Martin Bergmann
This study aimed to define the expression patterns of HENMT1 and PIWI proteins in human testis and investigate their association with transposon expression, infertility sub-type or development of testicular germ cell tumours (TGCT). Testis biopsies showing normal spermatogenesis were used to identify normal localization patterns of HENMT1 and PIWIL1 by immunolocalisation and RT-PCR after laser microdissection. 222 testis biopsies representing normal spermatogenesis, hypospermatogenesis, spermatogenic arrests, Sertoli cell-only (SCO) and testicular germ cell tumours (TGCT) were analysed by RT-qPCR for expression of HENMT1/PIWIL1/PIWIL2/PIWIL3/PIWIL4 and LINE-1...
July 4, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
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