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991.
Marina V. Kovina Michael E. Krasheninnikov Tatiana G. Dyuzheva Michael I. Danilevsky Ilya D. Klabukov Maxim V. Balyasin Olga K. Chivilgina Alexey V. Lyundup 《Cytotherapy》2018,20(3):361-374
Background
Menstrual blood is only recently and still poorly studied, but it is an abundant and noninvasive source of highly proliferative mesenchymal stromal cells (MSCs). However, no appropriate isolation method has been reported due to its high viscosity and high content of clots and desquamated epithelium.Methods
We studied three different isolation approaches and their combinations: ammonium-containing lysing buffer, distilled water and gradient-density centrifugation. We tested the proliferative capacity, morphology, surface markers and pluripotency of the resulting cells.Results
Our isolation method yields up to four million nucleated cells per milliliter of initial blood, of which about 0.2–0.3% are colony-forming cells expressing standard mesenchymal markers CD90, CD105 and CD73, but not expressing CD45, CD34, CD117, CD133 or HLA-G. The cells have high proliferative potential (doubling in 26?h) and the ability to differentiate into adipocytes and osteocytes. Early endometrial MSCs (eMSCs) express epithelial marker cytokeratin 7 (CK7). CK7 is easily induced in later passages in a prohepatic environment. We show for the first time that a satisfactory and stable yield of eMSCs is observed throughout the whole menstrual period (5 consecutive days) of a healthy woman.Discussion
The new cost/yield adequate method allows isolation from menstrual blood a relatively homogenous pool of highly proliferative MSCs, which seem to be the best candidates for internal organ therapy due to their proepithelial background (early expression of CK7 and its easy induction in later passages) and for mass cryobanking due to their high yield and availability. 相似文献992.
Insight into the aberrant expression of microRNAs (miRNAs) and the genes that they regulate during the progression of cancer in general and prostate cancer (PCa) in particular is one of the most important issues in current molecular biomedicine and allows for the discovery of therapeutic or diagnostic miRNA targets. The present study aimed to analyze the available data regarding the direct or indirect effects of miRNAs on the expression of the mRNAs involved in carcinogenesis and to enable updating and optimizing the selection of the corresponding targets. The present review focuses on the data related to the genes with miRNA‐dependent expression during the development of PCa. The data used in this review have been extracted from research papers and the databases STRING, PANTHER and TargetScan, with a special focus on the genes directly associated with cell transformation and the maintenance of the transformed genotype, as well as tumor invasion and spread. The search for miRNA markers of PCa and therapeutically active molecules should rely on bioinformatics resources, such as data from recent experimental studies, as well as meta‐analysis and cross‐analysis of the data on the state of the tumor, patient status, histological/immunohistological data and data on mRNA–miRNA coexpression. 相似文献
993.
Marina Gulyaeva Ivan Sobolev Kirill Sharshov Olga Kurskaya Alexander Alekseev Lidia Shestopalova Anna Kovner Yuhai Bi Weifeng Shi Michael Shchelkanov Alexander Shestopalov 《中国病毒学》2018,33(5):449-452
正Dear Editor Marine mammals are widely distributed and can be found almost in all coastal waters and coastlines around the world. The interface areas between marine and terrestrial environments provide natural habitats for aquatic and semiaquatic mammals as well as for reservoir species of avian influenza viruses (AIV)(Runstadler et al. 2013). Previous 相似文献
994.
Prolonged in vivo functional assessment of the mouse oviduct using optical coherence tomography through a dorsal imaging window
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The oviduct (or fallopian tube) serves as an environment for gamete transport, fertilization and preimplantation embryo development in mammals. Although there has been increasing evidence linking infertility with disrupted oviduct function, the specific roles that the oviduct plays in both normal and impaired reproductive processes remain unclear. The mouse is an important mammalian model to study human reproduction. However, most of the current analyses of the mouse oviduct rely on static histology or 2D visualization, and are unable to provide dynamic and volumetric characterization of this organ. The lack of imaging access prevents longitudinal live analysis of the oviduct and its associated reproductive events, limiting the understanding of mechanistic aspects of fertilization and preimplantation pregnancy. To address this limitation, we report a 3D imaging approach that enables prolonged functional assessment of the mouse oviduct in vivo. By combining optical coherence tomography with a dorsal imaging window, this method allows for extended volumetric visualization of the oviduct dynamics, which was previously not achievable. The approach is used for quantitative analysis of oviduct contraction, spatiotemporal characterization of cilia beat frequency and longitudinal imaging. This new approach is a useful in vivo imaging platform for a variety of live studies in mammalian reproduction. 相似文献
995.
Mazanko Maria S. Gorlov Ivan F. Prazdnova Evgeniya V. Makarenko Maxim S. Usatov Alexander V. Bren Anzhelika B. Chistyakov Vladimir A. Tutelyan Alexey V. Komarova Zoya B. Mosolova Natalia I. Pilipenko Denis N. Krotova Olga E. Struk Aleksandr N. Lin Angela Chikindas Michael L. 《Probiotics and antimicrobial proteins》2018,10(2):367-373
Probiotics and Antimicrobial Proteins - The study aims at elucidating the effect of bacilli probiotic preparations on the physiology of laying hens and roosters. Probiotic formulations were... 相似文献
996.
Natalia Pozdnyakova Ekaterina Dubrovskaya Marina Chernyshova Oleg Makarov Sergey Golubev Svetlana Balandina Olga Turkovskaya 《Fungal biology》2018,122(5):363-372
The degradation of two isomeric three-ringed polycyclic aromatic hydrocarbons by the white rot fungus Pleurotus ostreatus D1 and the litter-decomposing fungus Agaricus bisporus F-8 was studied. Despite some differences, the degradation of phenanthrene and anthracene followed the same scheme, forming quinone metabolites at the first stage. The further fate of these metabolites was determined by the composition of the ligninolytic enzyme complexes of the fungi. The quinone metabolites of phenanthrene and anthracene produced in the presence of only laccase were observed to accumulate, whereas those formed in presence of laccase and versatile peroxidase were metabolized further to form products that were further included in basal metabolism (e.g. phthalic acid). Laccase can catalyze the initial attack on the PAH molecule, which leads to the formation of quinones, and that peroxidase ensures their further oxidation, which eventually leads to PAH mineralization.A. bisporus, which produced only laccase, metabolized phenanthrene and anthracene to give the corresponding quinones as the dominant metabolites. No products of further utilization of these compounds were detected. Thus, the fungi's affiliation with different ecophysiological groups and their cultivation conditions affect the composition and dynamics of production of the ligninolytic enzyme complex and the completeness of PAH utilization. 相似文献
997.
The vitamin folic acid has been recognized as a crucial environmental factor for nervous system development. From the early fetal stages of the formation of the presumptive spinal cord and brain to the maturation and maintenance of the nervous system during infancy and childhood, folate levels and its supplementation have been considered influential in the clinical outcome of infants and children affected by neurological diseases. Despite the vast epidemiological information recorded on folate function and neural tube defects, neural development and neurodegenerative diseases, the mechanisms of folate action in the developing neural tissue have remained elusive. Here we compiled studies that argue for a unique role for folate in nervous system development and function and its consequences to neural disease and repair. © 2018 Wiley Periodicals, Inc. Develop Neurobiol 78: 391–402, 2018 相似文献
998.
Carlos E. Santos Cecilia Menjívar Rachel A. VanDaalen Olga Kornienko Kimberly A. Updegraff Samantha Cruz 《Ethnic and racial studies》2018,41(9):1672-1690
Bridging diverse areas of inquiry (i.e. legal studies and developmental psychology), this study explored the longitudinal association between Latina/o youths’ burgeoning legal consciousness, measured as awareness of Senate Bill 1070 (SB1070) in Arizona, and their adjustment in school, measured as classroom regulatory behaviours, and examined whether this association varied across immigrant generational status and gender. Participants were 689 Latina/o middle school students in Arizona (Mage?=?12.06 years, SD?=?.98). Multiple regression analysis revealed a significant interaction between Latina/o youths’ awareness of SB1070 at Time 1 and gender in predicting classroom regulatory behaviours at Time 2 (controlling for levels of it at Time 1). Males who were higher on awareness of SB1070 at Time 1 reported lower levels of classroom regulatory behaviours at Time 2. This study underscores the importance of measuring youths’ awareness of laws and how this awareness may impact their academic adjustment. 相似文献
999.
Reyes Gámez-Belmonte Cristina Hernández-Chirlaque Fermín Sánchez de Medina Olga Martínez-Augustin 《生物化学与生物物理学报:疾病的分子基础》2018,1864(11):3769-3779
Tissue nonspecific alkaline phosphatase (TNAP) has a well established role in bone homeostasis and in hepatic/biliary conditions. In addition, TNAP is expressed in the inflamed intestine and is relevant to T and B lymphocyte function. TNAP KO mice are only viable for a few days, but TNAP+/? haplodeficient mice are viable. Acute pancreatitis was induced by repeated caerulein injection in WT and TNAP+/? mice. TNAP+/? mice presented an increased expression of Cxcl2, Ccl2, Selplg (P-selectin ligand), Il6 and Il1b in the pancreas. Freshly isolated acinar cells showed a dramatic upregulation of Cxcl1, Cxcl2, Ccl2, Il6, Selpg or Bax in both pancreatitis groups. TNAP+/? cells displayed a 2-fold higher expression of Cxcl2, and a smaller increase in Il6. These findings could be partly replicated by in vitro treatment of primary acinar cells with caerulein. Furthermore, the proinflammatory effect on acinar cells could be partially reproduced in wild type cells treated with the TNAP inhibitor levamisole. TNAP mRNA levels were also markedly upregulated by pancreatitis in acinar cells. Neutrophil infiltration (MRP8+ cells) and activation (IL-6 and TNF production in LPS treated primary neutrophils) were increased in TNAP+/? vs WT mice. Neutrophil depletion greatly attenuated inflammation, indicating that this cell type is mainly responsible for the higher inflammatory status of TNAP+/? mice. In conclusion, our results show that altered TNAP expression results in heightened pancreatic inflammation, which may be explained by an augmented response of neutrophils and by a higher sensitivity of acinar cells to caerulein injury. 相似文献
1000.
Based on its map position, polymorphism pattern, and expression in the kidney, the gene encoding liver 20,000–30,000 MW protein 4 (LTW4) can be considered a potential candidate for theJckm2modifying locus, which mediates the severity of polycystic kidney disease in thejuvenile cystic kidneymouse. Using two-dimensional gel electrophoresis, we identified variants of a 26-kDa polypeptide that differed in their isoelectric points between the C57BL/6J and the DBA/2J inbred strains in a pattern similar to that originally described for LTW4 protein. N-terminal amino acid sequence was obtained by microsequencing analysis, and full-length clones were obtained by RT-PCR amplification and characterized. The map position of the cloned gene was determined and corresponded to that previously described forLtw4.The gene has homology to a class of proteins characterized as thiol-specific antioxidants that are protective against damage caused by oxidative stress. The murine MER5 gene is also a member of this gene family and has recently been renamedAntioxidant protein 1 (Aop1),based on its functional characterization. We therefore propose that the gene encoding LTW4 be calledAop2. 相似文献