keyword
MENU ▼
Read by QxMD icon Read
search

cell culture media

keyword
https://www.readbyqxmd.com/read/29785035/optimized-delivery-of-sirna-into-3d-tumor-spheroid-cultures-in-situ
#1
R G Morgan, A C Chambers, D N Legge, S J Coles, A Greenhough, A C Williams
3D tissue culture provides a physiologically relevant and genetically tractable system for studying normal and malignant human tissues. Despite this, gene-silencing studies using siRNA has proved difficult. In this study, we have identified a cause for why traditional siRNA transfection techniques are ineffective in eliciting gene silencing in situ within 3D cultures and proposed a simple method for significantly enhancing siRNA entry into spheroids/organoids. In 2D cell culture, the efficiency of gene silencing is significantly reduced when siRNA complexes are prepared in the presence of serum...
May 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29783988/tolerogenic-bone-marrow-derived-dendritic-cells-induce-neuroprotective-regulatory-t-cells-in-a-model-of-parkinson-s-disease
#2
Charles R Schutt, Howard E Gendelman, R Lee Mosley
BACKGROUND: Administration of granulocyte-macrophage colony-stimulating factor (GM-CSF) increases regulatory T cell (Treg) number and function with control of neuroinflammation and neuronal protection in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) model of Parkinson's disease (PD). Recently, we demonstrated in an early phase 1 clinical trial that GM-CSF also improves motor skills in PD patients. However, the mechanisms of Treg induction and its effects on neuroprotective responses remain unknown...
May 21, 2018: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/29783929/modulation-the-crosstalk-between-tumor-associated-macrophages-and-non-small-cell-lung-cancer-to-inhibit-tumor-migration-and-invasion-by-ginsenoside-rh2
#3
Honglin Li, Nan Huang, Weikang Zhu, Jianchun Wu, Xiaohui Yang, Wenjing Teng, Jianhui Tian, Zhihong Fang, Yingbin Luo, Min Chen, Yan Li
BACKGROUND: Tumor-associated macrophages (TAMs) play a critical role in modulating the tumor microenvironment and promote tumor metastases. Our studies have demonstrated that ginsenoside Rh2 (G-Rh2), a monomeric compound extracted from ginseng, is a promising anti-tumor agent in lung cancer cells. However, it remains unclear whetherG-Rh2 can modulate the differentiation of TAMs and its interaction with tumor microenvironment. In this study, we investigated how G-Rh2 regulates the phenotype of macrophages and affects the migration of non-small cell lung cancer (NSCLC) cells...
May 22, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29783172/headspace-sorptive-extraction-gas-chromatography-mass-spectrometry-method-to-measure-volatile-emissions-from-human-airway-cell-cultures
#4
Mei S Yamaguchi, Mitchell M McCartney, Angela L Linderholm, Susan E Ebeler, Michael Schivo, Cristina E Davis
The human respiratory tract releases volatile metabolites into exhaled breath that can be utilized for noninvasive health diagnostics. To understand the origin of this metabolic process, our group has previously analyzed the headspace above human epithelial cell cultures using solid phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS). In the present work, we improve our model by employing sorbent-covered magnetic stir bars for headspace sorptive extraction (HSSE). Sorbent-coated stir bar analyte recovery increased by 52 times and captured 97 more compounds than SPME...
May 12, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29783109/anti-inflammatory-potential-of-alginic-acid-from-sargassum-horneri-against-urban-aerosol-induced-inflammatory-responses-in-keratinocytes-and-macrophages
#5
I P Shanura Fernando, Thilina U Jayawardena, K K Asanka Sanjeewa, Lei Wang, You-Jin Jeon, Won Woo Lee
The airborne particulate pollutants originating in the deserts of Mongolia and China which becomes contaminated with industrial effluents and traffic emissions while moving with the wind currents towards East Asia has recently become a serious environmental and health issue in the region. They cause asthma, collateral lung tissue damage, oxidative stress, allergic reactions, and inflammation. The current study was undertaken to evaluate the protective effects of alginate extracted from the invasive alga Sargassum horneri (SHA) against fine dust collected from Beijing, China (Chinese fine dust; CFD)...
May 18, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29781256/improved-performance-in-mammalian-cell-perfusion-cultures-by-growth-inhibition
#6
Moritz K F Wolf, Aurélie Closet, Monika Bzowska, Jean-Marc Bielser, Jonathan Souquet, Hervé Broly, Massimo Morbidelli
Mammalian cell perfusion cultures represent a promising alternative for the production of various biopharmaceuticals to the current fed-batch technology. Long-term operation at a fixed viable cell density (VCD) requires a viable culture and a constant removal of excessive cells. Product loss in the cell removing bleed stream deteriorates the process yield. In this study, we investigated the use of chemical and environmental growth inhibition on culture performance by either adding valeric acid (VA) to the production media or by reducing the culture temperature (33...
May 21, 2018: Biotechnology Journal
https://www.readbyqxmd.com/read/29779700/plasma-circulating-extracellular-rnas-in-left-ventricular-remodeling-post-myocardial-infarction
#7
Kirsty M Danielson, Ravi Shah, Ashish Yeri, Xiaojun Liu, Fernando Camacho Garcia, Michael Silverman, Kahraman Tanriverdi, Avash Das, Chunyang Xiao, Michael Jerosch-Herold, Bobak Heydari, Siddique Abbasi, Kendall Van Keuren-Jensen, Jane E Freedman, Yaoyu E Wang, Anthony Rosenzweig, Raymond Y Kwong, Saumya Das
Despite substantial declines in mortality following myocardial infarction (MI), subsequent left ventricular remodeling (LVRm) remains a significant long-term complication. Extracellular small non-coding RNAs (exRNAs) have been associated with cardiac inflammation and fibrosis and we hypothesized that they are associated with post-MI LVRm phenotypes. RNA sequencing of exRNAs was performed on plasma samples from patients with "beneficial" (decrease LVESVI ≥ 20%, n = 11) and "adverse" (increase LVESVI ≥ 15%, n = 11) LVRm...
May 17, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29779371/detection-of-nucleic-acids-in-complex-samples-via-magnetic-microbead-assisted-catalyzed-hairpin-assembly-and-dd-a-fret
#8
Hongmei Fang, Nuli Xie, Min Ou, Jin Huang, Wenshan Li, Qing Wang, Jianbo Liu, Xiaohai Yang, Kemin Wang
Nucleic acids, as one kind of significant biomarkers, have attracted tremendous attention and exhibited immense value in fundamental studies and clinical applications. In this work, we developed a fluorescent assay for detecting nucleic acids in complex samples based on magnetic microbead (MMB)-assisted catalyzed hairpin assembly (CHA) and donor donor-acceptor fluorescence resonance energy transfer ("DD-A" FRET) signaling mechanism. Three types of DNA hairpin probes were employed in this system, including Capture, H1 (double FAM-labelled probe as FRET donor) and H2 (TAMRA-labelled probe as FRET acceptor)...
May 21, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29779131/production-and-characterization-of-exopolysaccharides-by-geobacillus-thermodenitrificans-arza-6-and-geobacillus-toebii-arza-8-strains-isolated-from-an-armenian-geothermal-spring
#9
Hovik Panosyan, Paola Di Donato, Annarita Poli, Barbara Nicolaus
The thermal ecosystems, including geothermal springs, are proving to be source of thermophiles able to produce extracellular polysaccharides (EPSs). Among the sixteen thermophilic bacilli isolated from sediment sampled from Arzakan geothermal spring, Armenia, two best EPSs producer strains were identified based on 16S rRNA gene sequence analysis and phenotypic characteristics, and designated as Geobacillus thermodenitrificans ArzA-6 and Geobacillus toebii ArzA-8 strains. EPSs production was investigated under different time, temperature and culture media's composition...
May 19, 2018: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/29779067/cost-effective-large-scale-expression-of-proteins-for-nmr-studies
#10
Julia Klopp, Aurélie Winterhalter, Rémy Gébleux, Daniela Scherer-Becker, Christian Ostermeier, Alvar D Gossert
We present protocols for high-level expression of isotope-labelled proteins in E. coli in cost-effective ways. This includes production of large amounts of unlabeled proteins and 13 C-methyl methionine labeling in rich media, where yields of up to a gram of soluble protein per liter of culture are reached. Procedures for uniform isotope labeling of 2 H, 13 C and 15 N using auto-induction or isopropyl-β-D-1-thiogalactopyranoside-induction are described, with primary focus on minimal isotope consumption and high reproducibility of protein expression...
May 19, 2018: Journal of Biomolecular NMR
https://www.readbyqxmd.com/read/29779031/a-novel-ex-vivo-mouse-mesometrium-culture-model-for-investigating-angiogenesis-in-microvascular-networks
#11
Ariana D Suarez-Martinez, Susanne Bierschenk, Katie Huang, Dana Kaplan, Carolyn L Bayer, Stryder M Meadows, Markus Sperandio, Walter L Murfee
BACKGROUND: The development of models that incorporate intact microvascular networks enables the investigation of multicellular dynamics during angiogenesis. Our laboratory introduced the rat mesentery culture model as such a tool, which would be enhanced with mouse tissue. Since mouse mesentery is avascular, an alternative is mouse mesometrium, the connective tissue of uterine horns. The study's objective was to demonstrate that mouse mesometrium contains microvascular networks that can be cultured to investigate multicellular dynamics during angiogenesis...
May 18, 2018: Journal of Vascular Research
https://www.readbyqxmd.com/read/29778872/derivatization-method-for-the-quantification-of-lactic-acid-in-cell-culture-media-via-gas-chromatography-and-applications-in-the-study-of-cell-glycometabolism
#12
Hua-Yin Zhang, Ping-Ping Zhang, Xiao-Xin Tan, Ze-Ze Wang, Kao-Qi Lian, Xiang-Dong Xu, Wei-Jun Kang
Lactic acid represents an important metabolite that reflects mitochondria function and may further serve as energy source for cancer cells. In light of this physiological and pathological significance, we developed a novel and sensitive gas chromatography method to detect lactic acid in cell culture media. Here, ethyl chloroformate was selected as derivative reagent and the derivatization process was further optimized in terms of number of reagents and reaction time as well as extraction reagents. Under optimal conditions, good linearity was achieved in the tested calibration range...
May 12, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29777692/an-optimal-serum-free-defined-condition-for-in-vitro-culture-of-kidney-organoids
#13
Masaki Nishikawa, Hiroshi Kimura, Naomi Yanagawa, Morgan Hamon, Peter Hauser, Lifu Zhao, Oak D Jo, Norimoto Yanagawa
Kidney organoid is an emerging topic of importance for research in kidney development and regeneration. Conventional culture systems for kidney organoids reported thus far use culture media containing serum, which may compromise our understanding and the potential clinical applicability of the organoid system. In our present study, we tested two serum-free culture conditions and compared their suitability for the maintenance and growth of kidney organoids in culture. One of the serum-free culture conditions was the combination of keratinocytes serum free medium (KSFM) with knockout serum replacement (KSR) (KSFM + KSR), and the other was the combination of knockout DMEM/F12 (KD/F12) and KSR (KD/F12 + KSR)...
May 16, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29777205/oviduct-epithelium-induces-interferon-tau-in-bovine-day-4-embryos-which-generates-an-anti-inflammatory-response-in-immune-cells
#14
Anup K Talukder, Mohammad B Rashid, Mohamed S Yousef, Kazuya Kusama, Takashi Shimizu, Masayuki Shimada, Susan S Suarez, Kazuhiko Imakawa, Akio Miyamoto
Recent studies indicate that communication between the bovine embryo and the mother begins in the oviduct. Here, we aimed to investigate the effect of embryos on bovine oviducts for their immune responses using an in vitro model. First, zygotes were cultured with or without bovine oviduct epithelial cells (BOECs) for 4 days, when embryos had reached the 16-cell stage. At that time, we detected interferon-tau (IFNT) in embryos co-cultured with BOECs, but not in embryos cultured alone. Next, peripheral blood mononuclear cells (PBMCs) were incubated either in media from embryo alone cultures or from co-cultures of embryos with BOECs...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29775846/reproductive-stage-and-sex-steroid-hormone-levels-influence-the-expression-of-mesenchymal-stromal-cell-msc-markers-in-the-equine-endometrium
#15
B Elisabeth Rink, Juliane Kuhl, Cristina L Esteves, Hilari M French, Elaine Watson, Christine Aurich, F Xavier Donadeu
Mesenchymal stem or stromal cells (MSCs) play key roles in tissue homeostasis. In the cyclic equine endometrium, this may be regulated by changes in serum concentrations of sex steroid hormones. This study was designed to investigate the changes in endometrial expression of MSC markers during reproductive cycles in mares and the influence of sex steroid hormones on endometrial MSC proliferation in vitro. Endometrial biopsies were collected from pony mares at different reproductive stages (estrus; day 5 and 13 after ovulation; seasonal anestrus; 20 h and 7days post-partum; n = 5 per stage) and were analyzed by RT-qPCR...
May 4, 2018: Theriogenology
https://www.readbyqxmd.com/read/29775477/cryptococcus-neoformans-can-form-titan-like-cells-in-vitro-in-response-to-multiple-signals
#16
Nuria Trevijano-Contador, Haroldo Cesar de Oliveira, Rocío García-Rodas, Suélen Andreia Rossi, Irene Llorente, Ángel Zaballos, Guilhem Janbon, Joaquín Ariño, Óscar Zaragoza
Cryptococcus neoformans is an encapsulated pathogenic yeast that can change the size of the cells during infection. In particular, this process can occur by enlarging the size of the capsule without modifying the size of the cell body, or by increasing the diameter of the cell body, which is normally accompanied by an increase of the capsule too. This last process leads to the formation of cells of an abnormal enlarged size denominated titan cells. Previous works characterized titan cell formation during pulmonary infection but research on this topic has been hampered due to the difficulty to obtain them in vitro...
May 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29774633/a-simple-and-cost-efficient-adherent-culture-platform-for-human-gastric-primary-cells-as-an-in-vitro-model-for-helicobacter-pylori-infection
#17
Samaneh Saberi, Behshad Pournasr, Zahra Farzaneh, Maryam Esmaeili, Mahmoud Eshagh Hosseini, Hossein Baharvand, Marjan Mohammadi
BACKGROUND: Most two- dimensional in vitro models for studying host- H. pylori interactions rely on tumor-derived cell lines, which harbor malignant alterations. The recent development of human gastric organoids has overcome this limitation and provides a highly sophisticated, yet costly, short-term model for H. pylori infection, with restricted use in low-budget centers. METHOD: Tissue specimens from upper, middle, and lower stomachs of H. pylori-negative volunteers were collectively dispersed and cultured on mouse embryonic fibroblast (MEF) or collagen-coated plates...
May 17, 2018: Helicobacter
https://www.readbyqxmd.com/read/29774071/molecular-detection-and-analysis-of-exosomes-using-surface-enhanced-raman-scattering-gold-nanorods-and-a-miniaturized-device
#18
Elyahb Allie Kwizera, Ryan O'Connor, Vojtech Vinduska, Melody Williams, Elizabeth R Butch, Scott E Snyder, Xiang Chen, Xiaohua Huang
Exosomes are a potential source of cancer biomarkers. Probing tumor-derived exosomes can offer a potential non-invasive way to diagnose cancer, assess cancer progression, and monitor treatment responses. Novel molecular methods would facilitate exosome analysis and accelerate basic and clinical exosome research. Methods: A standard gold-coated glass microscopy slide was used to develop a miniaturized affinity-based device to capture exosomes in a target-specific manner with the assistance of low-cost 3-D printing technology...
2018: Theranostics
https://www.readbyqxmd.com/read/29772700/inhibition-of-arachidonate-12-15-lipoxygenase-improves-%C3%AE-galactosidase-efficacy-in-ipsc-derived-cardiomyocytes-from-fabry-patients
#19
Yueh Chien, Shih-Jie Chou, Yuh-Lih Chang, Hsin-Bang Leu, Yi-Ping Yang, Ping-Hsing Tsai, Ying-Hsiu Lai, Kuan-Hsuan Chen, Wei-Chao Chang, Shih-Hsien Sung, Wen-Chung Yu
(1) Background: A high incidence of intervening sequence (IVS)4+919 G>A mutation with later-onset cardiac phenotype have been reported in a majority of Taiwan Fabry cohorts. Some evidence indicated that conventional biomarkers failed to predict the long-term progression and therapeutic outcome; (2) Methods: In this study, we constructed an induced pluripotent stem cell (iPSC)-based platform from Fabry cardiomyopathy (FC) patients carrying IVS4+919 G>A mutation to screen for potential targets that may help the conventional treatment; (3) Results: The FC-patient-derived iPSC-differentiated cardiomyocytes (FC-iPSC-CMs) carried an expected IVS4+919 G>A genetic mutation and recapitulated several FC characteristics, including low α-galactosidase A enzyme activity and cellular hypertrophy...
May 16, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29770732/characterization-of-canine-adipose-derived-mesenchymal-stromal-stem-cells-in-serum-free-medium
#20
Zhuoming Liu, Rudell Screven, Lynne Boxer, Michael Myers, Lax Devireddy
In this manuscript, we report on the development of a defined serum-free medium capable of supporting the culture expansion of mesenchymal stromal/stem cells (MSCs) from canine adipose tissue (canine Ad-MSCs). The potential benefits of serum-free media can only be utilized if cells cultured in serum-free media maintain the same functional characteristics as cells cultured in serum-containing media. Therefore, we analyze the characteristics of canine Ad-MSCs cultured in this serum-free medium or in serum-containing medium through evaluation of growth kinetics, clonogenic capacity, senescence, and differentiation capacity...
May 17, 2018: Tissue Engineering. Part C, Methods
keyword
keyword
84950
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"