Development of a generic transient transfection process at 100 L scale.

abstract：:This work focused on determining the effect of dissolved oxygen concentration (DO) on growth and metabolism of BHK-21 cell line (host cell for recombinant proteins manufacturing and viral vaccines) cultured in two stirred tank bioreactors with different aeration-homogenization systems, as well as pH control mode. BHK-...

journal_title：Cytotechnology

authors： Núñez EG,Leme J,de Almeida Parizotto L,Chagas WA,de Rezende AG,da Costa BL,Monteiro DC,Boldorini VL,Jorge SA,Astray RM,Pereira CA,Caricati CP,Tonso A

更新日期：2014-08-01 00:00:00

abstract：:In the present manuscript, the methods required to generate purified cultures of mature adipocytes, as well as stromal vascular cells, from the same isolation are detailed. Also, we describe the in vitro conditions for the dedifferentiation of the isolated mature adipocytes. These two types of cells may be used to ree...

journal_title：Cytotechnology

authors： Fernyhough ME,Vierck JL,Hausman GJ,Mir PS,Okine EK,Dodson MV

更新日期：2004-10-01 00:00:00

abstract：CONCLUSIONS:With the wide availability of insect cell culture media, it can generally be considered a routine process to develop new cell lines. Exceptions to this statement do exist, of course. Difficulties may arise when attempting to culture a specific cell type. For example, while there are a few cell lines from in...

journal_title：Cytotechnology

authors： Lynn DE

更新日期：1996-01-01 00:00:00

abstract：:The aim of this research was a comparative study on the isolation and culture of head kidney macrophages derived from Acipenser persicous and Rutilus frisii kutum as teleost and chondrostei species of fish. The macrophages were isolated by density gradient sedimentation, followed by adherence to a plastic surface. The...

journal_title：Cytotechnology

authors： Rastgar S,Movahedinia A,Salamat N,Salati A,Zabihi E

更新日期：2018-12-01 00:00:00

abstract：:Benfuracarb is a carbamate insecticide used to control insect pests in vegetables and it has anti-acetylcholinesterase activity lower than other carbamates. Cytotoxic effects of benfuracarb were evaluated by using root growth inhibition (EC50), mitotic index (MI), and mitotic phase determinations on the root meristem ...

journal_title：Cytotechnology

authors： Eren Y,Erdoğmuş SF,Akyıl D,Özkara A

更新日期：2016-08-01 00:00:00

abstract：:Vasculogenesis, the formation of blood vessels in embryonic or fetal tissue mediated by immature vascular cells (i.e., angioblasts), is poorly understood. Here we report a summary of our recent studies on the identification of a population of vascular progenitor cells (VPCs) in human fetal aorta. These undifferentiate...

journal_title：Cytotechnology

authors： Invernici G,Madeddu P,Emanueli C,Parati EA,Alessandri G

更新日期：2008-09-01 00:00:00

abstract：:The bone marrow represents the most common source from which to isolate mesenchymal stem cells (MSCs). MSCs are capable of differentiating into tissues of the three primary lineages and have the potential to enhance repair in damaged organs through the principals of regenerative medicine. Given the ease with which MSC...

journal_title：Cytotechnology

authors： Dickinson H,Milton P,Jenkin G

更新日期：2012-10-01 00:00:00

abstract：:Flow cytometers designed to analyze large particles are enabling new applications in biology. Data analysis is a critical component of the process FCM. In this article we compare features of four free software packages including WinMDI, Cyflogic, Flowing software, and Cytobank. ...

journal_title：Cytotechnology

authors： Sahraneshin Samani F,Moore JK,Khosravani P,Ebrahimi M

更新日期：2014-08-01 00:00:00

abstract：:The establishment of a cell culture system promoting chondrocyte differentiation has been utilized to better characterize phenotypic stages of chondrogenesis at the cellular level. Although the expression of the type II collagen gene has been studied during "in vitro" chondrocyte differentiation, little is known about...

journal_title：Cytotechnology

authors： Castagnola P,Cancedda R

更新日期：1991-02-01 00:00:00

abstract：:Temperature reduction in CHO cell batch culture may be beneficial in the production of recombinant protein and in maintenance of viability. The effects on cell cycle, apoptosis and nucleotide pools were studied in cultures initiated at 37°C and temperature shifted to 30 °C after 48 hours. In control cultures maintaine...

journal_title：Cytotechnology

authors： Moore A,Mercer J,Dutina G,Donahue CJ,Bauer KD,Mather JP,Etcheverry T,Ryll T

更新日期：1997-01-01 00:00:00

abstract：:A novel type of succinoyl trehalose lipid (STL-1) prepared from n-hexadecane-culture of Rhodococcus erythropolis SD-74 markedly inhibited the growth of a human monocytoid leukemic cell line, U937, and induced its morphological alteration along a monocyte-macrophage lineage. STL-1 markedly increased differention-associ...

journal_title：Cytotechnology

authors： Isoda H,Shinmoto H,Matsumura M,Nakahara T

更新日期：1995-01-01 00:00:00

abstract：:In our previous work, we isolated Arbas Cashmere goat hair follicle stem cells (gHFSCs) and explored the pluripotency. In this study, we investigated the expression and putative role of Sox9 in the gHFSCs. Immunofluorescence staining showed that Sox9 is predominantly expressed in the bulge region of the Arbas Cashmere...

journal_title：Cytotechnology

authors： He N,Dong Z,Tai D,Liang H,Guo X,Cang M,Liu D

更新日期：2018-08-01 00:00:00

abstract：:Mathematical models describing drug resistance are briefly reviewed. One model which describes the molecular function of the P-glycoprotein pump in multidrug resistant (MDR) cell lines has been developed and is presented in detail. The pump is modeled as an energy dependent facilitated diffusion process. A partial dif...

journal_title：Cytotechnology

authors： Michelson S

更新日期：1993-01-01 00:00:00

abstract：:Actions of chlorogenic acid, a major component of coffee, andits constituents, caffeic and quinic acids, on theproliferation and invasion of AH109A, a rat ascites hepatomacell line, were investigated using in vitro assay systems. Allthree components suppressed the AH109A invasion atconcentrations of 5-40 muM without a...

journal_title：Cytotechnology

authors： Yagasaki K,Miura Y,Okauchi R,Furuse T

更新日期：2000-07-01 00:00:00

abstract：:A simple protein free medium was formulated and tested in suspension culture using three hybridoma cell lines. The medium, referred to as CDSS (Chemically Defined Serum Substitutes), consisted of the basal medium DMEM:Ham F12, 1:1, with HEPES (D12H), plus pluronic F68, trace elements, ferric citrate, ascorbic acid, an...

journal_title：Cytotechnology

authors： Qi YM,Greenfield PF,Reid S

更新日期：1996-06-01 00:00:00

abstract：:The cytotoxic necrotizing factor type 1 (CNF1) fromE. coli causes necrosis in rabbit skin and multinucleation in cultured cells. Cells exposed to CNF1 were characterized by changes in actin organization, mainly consisting in the presence of well-developed stress fibers and membrane ruffles. The interaction of CNF1 wit...

journal_title：Cytotechnology

authors： Falzano L,Fiorentini C,Boquet P,Donelli G

更新日期：1993-01-01 00:00:00

abstract：:In vitro studies about biomaterials biological properties are essential screening tests. Yet cell cultures encounter difficulties related to cell retention on material surface or to the observation of both faces of permeable materials. The objective of the present study was to develop a reliable in vitro method to stu...

journal_title：Cytotechnology

authors： Grenade C,Moniotte N,Rompen E,Vanheusden A,Mainjot A,De Pauw-Gillet MC

更新日期：2016-12-01 00:00:00

abstract：:We found that the formation of multilayer rosettes by transformed human blood lymphocytes after phytohemagglutinin (PHA) stimulation is correlated with conformational changes of the chromatin as seen by premature chromosome condensation (PCC). The frequency distribution of grades of PCC and multilayer rosette formatio...

journal_title：Cytotechnology

authors： Thomou H,Sambani C,Kitsiou P,Politis G

更新日期：1988-07-01 00:00:00

abstract：:Transient gene expression (TGE) bioprocesses have been difficult to scale up in large stirred tank bioreactors with volumes of more than 1.5 L. Low production levels are often observed, but the causes have not been investigated (Gutierrez-Granados et al. in Crit Rev Biotechnol 38:918-940, 2018). Chikungunya Virus-like...

journal_title：Cytotechnology

authors： Chen P,Demirji J,Ivleva VB,Horwitz J,Schwartz R,Arnold F

更新日期：2019-12-01 00:00:00

abstract：:For the mouse hybridoma cell line VO 208, kinetics of growth, consumption of glucose and glutamine, and production of lactate, ammonia and antibodies were compared in batch and continuous cultures. At a given specific growth rate, different metabolic activities were observed: a 40% lower glucose and glutamine consumpt...

journal_title：Cytotechnology

authors： Goergen JL,Marc A,Engasser JM

更新日期：1992-01-01 00:00:00

abstract：:High density cell culture systems offer the advantage of production of bio-pharmaceuticals in compact bioreactors with high volumetric production rates; however, these systems are difficult to design and operate. First of all, the cells have to be retained in the bioreactor by physical means during perfusion. The desi...

journal_title：Cytotechnology

authors： Ozturk SS

更新日期：1996-01-01 00:00:00

abstract：:We have developed an efficient, reproducible, and scaleable cell culture process for a recombinant adenoviral vector expressing therapeutic transgenes for clinical trials. HEK 293 cells - which support the propagation of E1 deficient adenovirus - were first adapted to serum free media and suspension growth. Subsequent...

journal_title：Cytotechnology

authors： Schoofs G,Monica TJ,Ayala J,Horwitz J,Montgomery T,Roth G,Castillo FJ

更新日期：1998-11-01 00:00:00

abstract：:The relatively recent discovery of miRNAs has added a completely new dimension to the study of the regulation of gene expression. The mechanism of action of miRNAs, the conservation between diverse species and the fact that each miRNA can regulate a number of targets and phenotypes clearly indicates the importance of ...

journal_title：Cytotechnology

authors： Gammell P

更新日期：2007-04-01 00:00:00

abstract：:The type of DNA damage and the role of poly (ADP-ribosyl) polymerase (ADPRP) and sulphated glyprotein 2 (SGP-2) in programmed cell death (apoptosis) was investigated in the following model systems: i) rat thymocytes treated with dexamethasone (DEX) eitherin vitro orin vivo; ii) human perypheral blood mononuclear cells...

journal_title：Cytotechnology

authors： Monti D,Troiano L,Tropea F,Grassilli E,Cossarizza A,Barozzi D,Bettuzzi S,Corti A,Franceschi C

更新日期：1991-02-01 00:00:00

abstract：:We developed a simple method for freezing anchorage-dependent cells, including primary cultured rat liver parenchymal cells, without detaching the cells from the culture dish. The method consists of preculture of the cells to confluence, changing the growth medium to a conventional freezing medium, packaging in a cont...

journal_title：Cytotechnology

authors： Ohno T,Saijo-Kurita K,Miyamoto-Eimori N,Kurose T,Aoki Y,Yosimura S

更新日期：1991-03-01 00:00:00

abstract：:This study describes two packed bed bioreactor configurations which were used to culture a mouse-mouse hybridoma cell line (ATCC HB-57) which produces an IgG1 monoclonal antibody. The first configuration consists of a packed column which is continuously perfused by recirculating oxygenated media through the column. In...

journal_title：Cytotechnology

authors： Wang G,Zhang W,Jacklin C,Freedman D,Eppstein L,Kadouri A

更新日期：1992-01-01 00:00:00

abstract：:More than 35 years ago double Nobel laureate Linus Carl Pauling published a powerful model of the molecular mechanism of general anesthesia, generally referred to as the hydrate-microcrystal (aqueous-phase) theory. This hypothesis, based on the molecular behavior of water molecules, did not receive serious attention d...

journal_title：Cytotechnology

authors： Nakada T

更新日期：2009-04-01 00:00:00

abstract：:Olive oil intake has been shown to induce significant levels of apoptosis in various cancer cells. These anti-cancer properties are thought to be mediated by phenolic compounds present in olive. These beneficial health effects of olive have been attributed, at least in part, to the presence of oleuropein and hydroxyty...

journal_title：Cytotechnology

authors： Han J,Talorete TP,Yamada P,Isoda H

更新日期：2009-01-01 00:00:00

abstract：:The feasibility of using genipin cross-linked type II collagen scaffold with rabbit bone marrow mesenchymal stem cells (RBMSCs) to repair cartilage defect was herein studied. Induction of RBMSCs into chondrocytic phenotype on type II collagen scaffold in vitro was conducted using TGF-β 3 containing medium. After 3-wee...

journal_title：Cytotechnology

authors： Chen WC,Yao CL,Wei YH,Chu IM

更新日期：2011-01-01 00:00:00

abstract：:The development of specific catalytic inhibitors for the serine protease urokinase-type plasminogen activator (uPA) has been hindered due to difficulties in producing sufficient amounts of active recombinant uPA that is catalytically equivalent to native uPA. The purpose of this study was to develop an efficient syste...

journal_title：Cytotechnology

authors： Atkins E,Zamora S,Candia BJ,Baca A,Orlando RA

更新日期：2005-09-01 00:00:00