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Cytotechnology

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https://www.readbyqxmd.com/read/28101741/anti-hyperuricemic-effect-of-taxifolin-in-cultured-hepatocytes-and-model-mice
#1
Shin-Ichi Adachi, Ken-Ichi Nihei, Yoshiyuki Ishihara, Fumiaki Yoshizawa, Kazumi Yagasaki
Hyperuricemia is recognized as an important risk factor for gout. High dietary intake of purine-rich foods such as meats and sea foods increases uric acid (UA) levels in the blood. Taxifolin present in Siberian larch and strawberries has been reported to possess health promoting activities including anti-oxidant effect. In this study, we examined anti-hyperuricemic effect of taxifolin in both cultured hepatocytes and hyperuricemic model mice. In cultured AML12 hepatocytes, taxifolin significantly suppressed UA production dose- and time-dependently...
January 18, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28097454/in-vitro-cytogenetic-toxicity-of-bezafibrate-in-human-peripheral-blood-lymphocytes
#2
M Topaktas, N E Kafkas, S Sadighazadi, E S Istifli
Bezafibrate (BF) is a peroxisome proliferator-activated receptor (PPAR) agonist used as a lipid-lowering agent to treat both the familial or acquired combined forms of hyperlipidemia. BF is the only available fibrate drug that acts on all PPAR subtypes of α, β, and δ. Although there are studies that indicate a genotoxic potential associated with the use of fibrates, to our knowledge, the genotoxicity of BF in human peripheral blood lymphocytes has not been studied. In the present study, the genotoxic potential of BF was evaluated using chromosome aberration (CA) and micronucleus (MN) assays in peripheral blood lymphocytes of healthy human subjects...
January 17, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28084562/immunostimulatory-effect-of-dried-bonito-extract-on-mouse-macrophage-cell-lines-and-mouse-primary-peritoneal-macrophages
#3
Momoko Ishida, Kosuke Nishi, Kozue Shinohara, Nanami Kunihiro, Katsuhiro Osajima, Tomokazu Suemitsu, Takuya Sugahara
Dried bonito is a preserved food used in Japan, which contains abundant flavor ingredients and functional substances. We focused on the immunostimulatory effect of dried bonito extract (DBE) on mouse macrophage-like J774.1 cells, RAW264.7 cells, and mouse primary peritoneal macrophages. DBE significantly stimulated the production of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) by both J774.1 cells and peritoneal macrophages by enhancing the cytokine gene expression levels. In addition, DBE stimulated nitric oxide production by enhancing the expression of inducible nitric oxide synthase in RAW264...
January 13, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28083834/generation-and-characterization-of-a-potentially-applicable-vero-cell-line-constitutively-expressing-the-schmallenberg-virus-nucleocapsid-protein
#4
Yongning Zhang, Shaoqiang Wu, Shanshan Song, Jizhou Lv, Chunyan Feng, Xiangmei Lin
Schmallenberg virus (SBV) is a Culicoides-transmitted orthobunyavirus that poses a threat to susceptible livestock species such as cattle, sheep and goats. The nucleocapsid (N) protein of SBV is an ideal diagnostic antigen for the detection of viral infection. In this study, a stable Vero cell line, Vero-EGFP-SBV-N, constitutively expressing the SBV-N protein was established using a lentivirus system combined with puromycin selection. This cell line spontaneously emitted green fluorescent signals distributed throughout the cytoplasm, in which the expression of SBV-N fusion protein was confirmed by western blot analysis...
January 12, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28074390/anti-allergic-triterpenes-isolated-from-olive-milled-waste
#5
Asuka Kishikawa, Yhiya Amen, Kuniyoshi Shimizu
The degranulation of basophils stimulated by antigen is one of the allergic mechanisms of immediate hypersensitivity reactions. In a previous study, the β-hexosaminidase release of rat basophilic leukemia (RBL-2H3) cells stimulated by IgE cross-linking was specifically inhibited by ethanol extract of olive milled waste (OMW). OMW is a potential source of triterpenes, which show several biological activities. However, little is known about the effect of triterpenes in OMW on β-hexosaminidase release. Here we investigated anti-allergic triterpenes from the ethanol extract of OMW, and we discuss the structure-activity relationship...
January 10, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28074389/cochlear-epithelial-of-dog-fetuses-a-new-source-of-multipotent-stem-cells
#6
Ana Carolina M Santos, Jéssica Borghesi, Lara Carolina Mario, Adriana Raquel A Anunciação, Andrea Maria Mess, Ana Claudia O Carreira, Phelipe O Favaron, Maria Angélica Miglino
Hearing loss caused by the damage of cochlea sensory cells or neurons is a common human disease, but also affects dogs and other animals. To test their progenitor nature as potential value for future therapies, we characterized cells derived from the cochlear epithelium in dog fetuses. In total, 8 fetuses of 35-40 days of gestation, derived from castration campaigns, were investigated. Cells were analysed by the MTT colorimetric assay and in regard to cell cycle, differentiation capacities, immunophenotypes and qPCR analysis...
January 10, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28074388/lactobacillus-slpa-promotes-esc-growth-through-the-erk1-2-pathway
#7
Jinying He, Ya Tuo, Wenjie Yan, Jing Yang
Bacterial surface layers (S-layers) are cell envelope structures ubiquitously found in gram-negative and gram-positive bacteria, including Lactobacillus. S-layers play a role in the determination and maintenance of cell shape as virulence factors, mediate cell adhesion, and regulate immature dendritic and T cells. In this study, we sought to understand the involvement of MAPK serine/threonine kinases in alterations in Endometrial epithelial cells (ESC) growth induced by Lactobacillus crispatus (L. crispatus) slpA, an S-layer protein...
January 10, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28070808/combined-positive-effect-of-oocyte-extracts-and-brilliant-cresyl-blue-stained-recipient-cytoplasts-on-epigenetic-reprogramming-and-gene-expression-in-buffalo-nuclear-transfer-embryos
#8
E M Sadeesh, Shah Fozia, Kataria Meena
This study examined the effects of buffalo oocyte extracts (BOE) on donor cells reprogramming and molecular characterisation of oocytes screened via brilliant cresyl blue (BCB) staining and comparison of gene expression profiles of developmentally important genes in blastocysts from IVF and cloned derived from BOE treated donor cells with BCB selected recipient cytoplasts. Relative abundance (RA) of OCT4 and NANOG was increased (P < 0.05) and HDAC-1, DNMT-1, and DNMT-3A decreased (P < 0.05) in extract treated cells (ETCs)...
January 9, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28070807/successful-synthesis-of-active-human-coagulation-factor-vii-by-co-expression-of-mammalian-gamma-glutamyl-carboxylase-and-modification-of-vit-k-cycle-in-drosophila-schneider-s2-cells
#9
Kotomi Nagahashi, Kazuo Umemura, Naohiro Kanayama, Takayuki Iwaki
Mammalian gamma-glutamyl carboxylase and reduced vitamin K are indispensable for synthesis of mature mammalian vitamin K dependent proteins including some of blood coagulation factors (factors II, VII, IX, and X). It was well known that Drosophila melanogaster expressed gamma-glutamyl carboxylase and possessed a vit.K cycle although native substrates for them have not been identified yet. Despite the potential capability of gamma carboxylation in D. melanogaster derived cells such as S2 cells, Drosophila gamma-glutamyl carboxylase failed to gamma carboxylate a peptide fused to the human coagulation factor IX propeptide...
January 9, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28058568/assessment-of-the-antimicrobial-antioxidant-and-cytotoxic-activities-of-the-wild-edible-mushroom-agaricus-lanipes-f-h-m%C3%A3-ller-jul-sch%C3%A3-ff-hlav%C3%A3-%C3%A4-ek
#10
Oğuzhan Kaygusuz, Meruyert Kaygusuz, Yavuz Dodurga, Mücahit Seçme, Emine Nur Herken, Kutret Gezer
The present investigation was undertaken to evaluate the antimicrobial and antioxidant activities of the wild edible mushroom Agaricus lanipes, and also to investigate its cytotoxicity and potential and possible apoptotic effect against the A549 lung cancer cell line in in vitro conditions. Total antioxidant capacity, total phenolic content, total oxidant status, total antioxidant status, lipid hydroperoxides, and total free -SH levels of A. lanipes were found to be 4.55 mg T/g, 14.6 mg GA equivalent/g, 3...
January 5, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28050721/titanium-dioxide-nanoparticles-an-in-vitro-study-of-dna-binding-chromosome-aberration-assay-and-comet-assay
#11
Suhani Patel, Palak Patel, Sonal R Bakshi
Engineered titanium dioxide nanoparticles (TiO2 NPs) are extensively used in cosmetic, pharmaceutical and other industries globally due to their unique properties, which has raised concern for biosafety. Genotoxicity assessment is an important part of biosafety evaluation; we report in vitro cytogenetic assays for NPs considering their unique physicochemical characteristics to fill the gap of laboratory data regarding biological safety along with mechanistic study for mode of interaction of NP with genetic material...
January 3, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28013442/dmso-free-cryopreservation-of-adipose-derived-mesenchymal-stromal-cells-expansion-medium-affects-post-thaw-survival
#12
Olena Rogulska, Yuri Petrenko, Alexander Petrenko
Off-the-shelf availability of human adipose-derived mesenchymal stromal cells (ASCs) for regenerative medicine application requires the development of nontoxic, safe, and efficient protocols for cryopreservation. Favorably, such cell processing protocols should not contain xenogeneic or toxic components, such as fetal bovine serum (FS) and dimethyl sulfoxide (DMSO). The objective of the study was to assess the sensitivity of ASCs to DMSO-free cryopreservation protocol depending on their expansion conditions: conventional, based on the application of FS or xeno-free, using PL as a medium supplement...
December 24, 2016: Cytotechnology
https://www.readbyqxmd.com/read/28004224/antioxidant-and-antiproliferative-effects-of-different-solvent-fractions-from-terminalia-belerica-roxb-fruit-on-various-cancer-cells
#13
Tapasree Basu, Sourav Panja, Nikhil Baban Ghate, Dipankar Chaudhuri, Nripendranath Mandal
Terminalia belerica Roxb. fruits have been previously reported against diabetes, ulcer, microbial problems and hepatotoxicity. The present study was aimed to investigate antioxidant and anticancer potential of sequentially fractionated hexane (TBHE), chloroform (TBCE), ethyl acetate (TBEE), butanol (TBBE) and water (TBWE) extracts from the 70% methanolic extract of T. belerica fruits. TBCE, TBEE, TBBE and TBWE showed excellent ROS (reactive oxygen species) and RNS (reactive nitrogen species) scavenging activities which was investigated using 11 different assays for various free radicals...
December 21, 2016: Cytotechnology
https://www.readbyqxmd.com/read/27990569/icariin-treated-human-umbilical-cord-mesenchymal-stem-cells-decrease-chronic-liver-injury-in-mice
#14
Huantian Cui, Zhen Liu, Li Wang, Yuhong Bian, Wen Li, Huifang Zhou, Xiaoqian Chu, Qingyun Zhao
Human umbilical cord mesenchymal stem cells (hUMSCs) have been shown to have multiple differentiation potentials. However, a key problem is that only a small number of hUMSCs can migrate to damaged tissue after transplantation. According to "The Theory of Kidney Essence" in Traditional Chinese Medicine, some traditional Chinese medicines used for tonifying the kidneys can be applied in promoting the differentiation and migration of stem cells in vivo. Our previous study demonstrated that icariin (ICA) could up-regulate the pluripotent genes of hUMSCs in vitro and induce cell migration in mice in an acute kidney injury model in vivo...
December 18, 2016: Cytotechnology
https://www.readbyqxmd.com/read/27990568/evaluation-of-in-vitro-antioxidant-and-anticancer-activity-of-allophylus-cobbe-leaf-extracts-on-du-145-and-pc-3-human-prostate-cancer-cell-lines
#15
Shridhar C Ghagane, Shridevi I Puranik, Rajendra B Nerli, Murigendra B Hiremath
Allophylus cobbe (L.) Raeusch. belonging to the family Sapindaceae, is a commonly distributed small shrub in Western Ghats of India previously reported for its traditional medicinal properties. It is used for the treatment of various ailments. The present study is aimed at investigating preliminary phytochemicals, inducing the determination of the total phenolic contents, antioxidant assays and anticancer activity of A. cobbe leaf extracts on (DU-145) and (PC-3) cell lines. Preliminary phytochemical screening showed a broad spectrum of secondary metabolites...
December 18, 2016: Cytotechnology
https://www.readbyqxmd.com/read/27957649/responses-of-primary-cultured-haemocytes-derived-from-the-marine-gastropod-haliotis-tuberculata-to-an-industrial-effluent-exposure
#16
Rim Ladhar-Chaabouni, Thomas Houel, Antoine Serpentini, Sahar Karray, Jean-Marc Lebel, Amel Hamza-Chaffai
This study assessed the responses of primary cultured haemocytes from the marine gastropod Haliotis tuberculata exposed to the increasing concentrations of industrial effluent (0, 0.5, 1, 10, 15 and 20%) discharged into the Tunisian coastal area. Analyses showed the presence of metals such as cadmium (Cd), chromium (Cr), copper (Cu), manganese (Mn), zinc (Zn), nickel (Ni) and lead (Pb) in the effluent. The effects of this mixture of pollutants on abalone haemocyte parameters were reflected by a significant decrease of cell viability, phagocytotic activity and reactive oxygen species (ROS) production as well as morphological and lysosomal membrane alterations...
December 12, 2016: Cytotechnology
https://www.readbyqxmd.com/read/27928650/cytoglobin-a-potential-marker-for-adipogenic-differentiation-in-preadipocytes-in-vitro
#17
Ayşegül Doğan, Selami Demirci, Binnur Kıratlı, Fikrettin Şahin
Obesity, mainly characterized by the excess fat storage, is a global health problem resulting in serious morbidity and mortality. Identification of molecular mechanisms in adipogenic differentiation pathway might lead to development of new strategies for diagnosis, prevention and therapy of obesity and associated diseases. Discovery of new genes and proteins in the differentiation pathway could help to understand the key specific regulators of the adipogenesis. Cytoglobin (Cygb), identified as a new globin family member protein, is expressed in various tissues...
December 7, 2016: Cytotechnology
https://www.readbyqxmd.com/read/27905026/native-matrix-based-human-lung-alveolar-tissue-model-in-vitro-studies-of-the-reparatory-actions-of-mesenchymal-stem-cells
#18
Ieva Bruzauskaite, Jovile Raudoniute, Jaroslav Denkovskij, Edvardas Bagdonas, Sandra Meidute-Abaraviciene, Vaida Simonyte, Daiva Bironaite, Almantas Siaurys, Eiva Bernotiene, Ruta Aldonyte
Studies of lung diseases in vitro often rely on flat, plastic-based monocultures, due to short lifespan of primary cells, complicated anatomy, lack of explants, etc. We hereby present a native 3D model with cues for repopulating epithelial cells. Abilities of mesenchymal stem cells (MSC) to modulate bacterial lipopolysaccharide (LPS) and cigarette smoke-induced injury to pulmonary epithelium were tested in our model. Post-mortem human lung tissue was sliced, cut and decellularized. Resulting matrix pads were reseeded with pulmonary epithelium (A549 line)...
December 1, 2016: Cytotechnology
https://www.readbyqxmd.com/read/27905025/flavonoids-from-heliotropium-subulatum-exudate-and-their-evaluation-for-antioxidant-antineoplastic-and-cytotoxic-activities-ii
#19
Bharat Singh, Pooran M Sahu, Ram A Sharma
The flavonoids are the largest group of phenolic compounds isolated from a wide range of higher plants. These compounds work as antimicrobials, anti-insect agents and protect plants from other types of biotic and abiotic stresses. Various researchers have suggested that flavonoids possessed antioxidant, antineoplastic and cytotoxic activities. The main objective of this study was to test dichloromethane fraction of resinous exudate of Heliotropium subulatum for their antioxidant, antineoplastic and cytotoxic activities, as well as to search new antioxidant and antineoplastic agents for pharmaceutical formulations...
November 30, 2016: Cytotechnology
https://www.readbyqxmd.com/read/27905024/potential-anti-genotoxic-effect-of-sodium-butyrate-to-modulate-induction-of-dna-damage-by-tamoxifen-citrate-in-rat-bone-marrow-cells
#20
Haidan M El-Shorbagy
Sodium butyrate (SB) is one of the histone deacetylase inhibitors (HDACi's) that is recently evidenced to have a prooxidant activity and an ability to reduce hydrogen peroxide-induced DNA damage. Since the majority of estrogen receptor positive breast cancer patients are treated with tamoxifen citrate (TC), which exerts well established oxidative and genotoxic effects, thus the basic objective of this study is to determine whether SB could ameliorate or curate tamoxifen citrate-induced oxidative DNA damage and genotoxic effect in vivo through up-regulation of some antioxidant enzymes...
November 30, 2016: Cytotechnology
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