Engineering challenges in high density cell culture systems.

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：:Human intestinal Caco-2 cells were cultured under serum-free conditions on an insoluble collagen and FCS matrix (Caco-2-SF), and a comparison was made between several characteristics of Caco-2 and Caco-2-SF cells. Their morphological appearance was identical. Slight differences were found in cell growth and expression...

journal_title：Cytotechnology

authors： Hashimoto K,Shimizu M

更新日期：1993-01-01 00:00:00

abstract：CONCLUSIONS:The BEVS has become widely utilized for production of recombinant proteins. However, protein aggregation and inefficient processing often limit yields, especially for secreted and membrane proteins. Since many proteins of pharmaceutical interest require similar posttranslational processing steps, engineerin...

journal_title：Cytotechnology

authors： Betenbaugh MJ,Ailor E,Whiteley E,Hinderliter P,Hsu TA

更新日期：1996-01-01 00:00:00

abstract：:In this article, we describe a new method that facilitates to isolate mammalian cells inducible hyper-producing heterologous proteins. This method uses the tetracycline-inducible system to express both the selection marker and the heterologous gene, therefore, allows to increase the selection pressure by reducing the ...

journal_title：Cytotechnology

authors： Teruya K,Zhang Y,Katakura Y,Shirahata S

更新日期：2002-11-01 00:00:00

abstract：:Prostacyclin alternatively called prostaglandin (PG) I2 is an unstable metabolite synthesized by the arachidonate cyclooxygenase pathway. Earlier studies have suggested that prostacyclin analogues can act as a potent effector of adipose differentiation. However, biosynthesis of PGI2 has not been determined comprehensi...

journal_title：Cytotechnology

authors： Rahman MS,Khan F,Syeda PK,Nishimura K,Jisaka M,Nagaya T,Shono F,Yokota K

更新日期：2014-08-01 00:00:00

abstract：:Alkylating agents are the most widely used anticancer drugs whose main target is the DNA, although how exactly the DNA lesions cause cell death is still not clear. The emergence of resistance to this class of drugs as well as to other antitumor agents is one of the major causes of failure of cancer treatment. This pap...

journal_title：Cytotechnology

authors： Damia G,D'Incalci M

更新日期：1998-09-01 00:00:00

abstract：:We have examined the effect of differentiation on the expression of different members of the transforming growth factor type-beta (TGF-beta) family using embryonal carcinoma (EC) cells and early mammalian embryos. We determined that TGF-beta activity increases approximately 25-100% when the mouse EC cell line, F9, is ...

journal_title：Cytotechnology

authors： Kelly D,Campbell WJ,Tiesman J,Rizzino A

更新日期：1990-11-01 00:00:00

abstract：:Previously, it has been shown that the binding of epidermal growth factor (EGF) by a wide range of cells decreases as cell density increases. In this report, we demonstrate that KB cells treated chronically with phorbol esters continue to exhibit decreases in EGF receptor binding as cell density increases. This findin...

journal_title：Cytotechnology

authors： Rizzino A,Huebert C,Kuszynski C,Wilder PJ

更新日期：1991-10-01 00:00:00

abstract：:Parkinson's disease (PD) is one of the most common neural degenerative disease, affecting millions of people globally. Great progress has been made in the PD treatment, and one of the most promising one is the stem cell-based therapy. Thus, studies on the differentiation of neural stem cells (NSCs) are important to th...

journal_title：Cytotechnology

authors： Qi L,Tang Y,He W,Pan H,Jiang W,Wang L,Deng W

更新日期：2017-04-01 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：:Advancements in cell cultures are occurring at a rapid pace, an important direction is culturing cells in 3D conditions. We demonstrate the usefulness of agarose hydrogels in obtaining 3 dimensional aggregates of three cell lines, A549, MCF-7 and Sp2/0. The differences in culture phases, susceptibility to cisplatin-in...

journal_title：Cytotechnology

authors： Ravi M,Kaviya SR,Paramesh V

更新日期：2016-05-01 00:00:00

abstract：:Aim We studied the role of mini-TyrRS and mini-TrpRS in angiogenesis by using small interfering RNA-mediated mini-TyrRS/mini-TrpRS knockout in hypoxic culture of human umbilical vein endothelial cells. Methods SiRNA was used as the main method to inhibited the gene function. Silencing efficiency was assayed by real-ti...

journal_title：Cytotechnology

authors： Zeng R,Chen YC,Zeng Z,Liu R,Qiang O,Jiang XF,Liu XX,Li X,Wang HY

更新日期：2008-03-01 00:00:00

abstract：:Sufentanil, a lipophilic opioid, is the most frequently used clinical drug for ischemic heart disease. The effects of sufentanil on MAPK signaling in ischemic heart disease were explored. The effects of sufentanil on ischemia-reperfusion (IR)-induced myocardial injury in a rat model were examined. The serum levels of ...

journal_title：Cytotechnology

authors： Tao H,Nuo M,Min S

更新日期：2018-02-01 00:00:00

abstract：:In neuronal dendrites, septins localize to the base of the spine, a unique position which is sandwiched between the microtubule (MT)-rich dendritic shaft and the actin filament-rich spine. Here, we provide evidence for the association of SEPT6 with MTs in cultured rat hippocampal neurons. In normal cultures, SEPT6 clu...

journal_title：Cytotechnology

authors： Moon IS,Lee H,Walikonis RS

更新日期：2013-03-01 00:00:00

abstract：:The subcellular localisation of doxorubicin and Victoria Blue BO (VBBO) in a murine mammary tumour cell line EMT6-S, and the resistant sub-lineEMT6-R was studied, using confocal microscopy, in order to investigate their sites of action. In cells treated with doxorubicin (10 mu M) for 90 min, the pattern of intracellul...

journal_title：Cytotechnology

authors： Burrow SM,Phoenix DA,Wainwright M,Tobin MJ

更新日期：2002-05-01 00:00:00

abstract：:With the increasingly competitive commercial production of target proteins by hybridoma and genetically engineered cells, there is an urgent requirement for biosensors to monitor and control on-line and in real time the growth of cultured cells. Since growth is accompanied by an enthalpy change, heat dissipation measu...

journal_title：Cytotechnology

authors： Guan YH,Kemp RB

更新日期：1999-07-01 00:00:00

abstract：:The cancer stem cell hypothesis posits that tumors are derived from a single cancer-initiating cell with stem cell properties. The task of identifying and characterizing cancer-initiating cells with stem cell properties at the single cell level has proven technically difficult because of the scarcity of the cancer ste...

journal_title：Cytotechnology

authors： Cocola C,Sanzone S,Astigiano S,Pelucchi P,Piscitelli E,Vilardo L,Barbieri O,Bertoli G,Reinbold RA,Zucchi I

更新日期：2008-09-01 00:00:00

abstract：:Recent evidence from molecular cloning, biochemical and immunological experiments has established that the cation-independent mannose-6-phosphate (Man-6-P) receptor and insulin-like growth factor-II (IGF-II) receptor are the same protein. Although the role of the IGF-II/Man-6-P receptor as a transporter of hydrolytic ...

journal_title：Cytotechnology

authors： Macdonald RG

更新日期：1989-12-01 00:00:00

abstract：:Recent studies have indicated that Di-(2-ethylhexyl) phthalate (DEHP), the most commonly used plasticizer in daily-life products, could be dispersed in indoor air and induce human exposure via inhalation. DEHP has been reported to have effects on the respiratory system in both animal and human researches. The toxicity...

journal_title：Cytotechnology

authors： Ma Y,Guo Y,Wu S,Lv Z,Zhang Q,Xie X,Ke Y

更新日期：2018-02-01 00:00:00

abstract：:A murine hybridoma line (Zac3), secreting an IgA monoclonal antibody, was cultivated in different systems: a BALB/c mouse, a T-flask, a stirred-tank bioreactor and a hollow fiber reactor. These systems were characterized in terms of cell metabolism and performances for IgA production. Cultures in T-flask and batch bio...

journal_title：Cytotechnology

authors： Stoll T,Perregaux C,von Stockar U,Marison IW

更新日期：1995-02-01 00:00:00

abstract：:In the recent years, the possibility of utilizing extracellular vesicles for drug delivery purposes has been investigated in various models, suggesting that these vesicles may have such potential. In addition to the choice of donor cell type for vesicle production, a major obstacle still exists with respect of loading...

journal_title：Cytotechnology

authors： Johnsen KB,Gudbergsson JM,Skov MN,Christiansen G,Gurevich L,Moos T,Duroux M

更新日期：2016-10-01 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：:Although the insect cell/baculovirus system is an important expression platform for recombinant protein production, our understanding of insect cell metabolism with respect to enhancing cell growth capability and productivity is still limited. Moreover, different host insect cell lines may have different growth charac...

journal_title：Cytotechnology

authors： Chou CC

更新日期：2014-10-01 00:00:00

abstract：:The neurite outgrowth of PC12 cells on collagen-coated glass plates under light emitting diode (LED) irradiation at several wavelengths (i.e., 455, 470, 525, 600, 630, 880 and 945 nm) was investigated. No neurite outgrowth was observed during cultivation under irradiation from the lamp of an inverted light microscope ...

journal_title：Cytotechnology

authors： Higuchi A,Watanabe T,Noguchi Y,Chang Y,Chen WY,Matsuoka Y

更新日期：2007-07-01 00:00:00

abstract：:Menadione-catalyzed H(2)O(2) production by viable animal cells was proportional to the viable cell number, and H(2)O(2) production decreased with increasing cytotoxic effects after the incubation of cells with cytotoxic compounds. The cytotoxic effects of food additives, pesticides, antibiotics, heavy metals, phytotox...

journal_title：Cytotechnology

authors： Yamashoji S,Isshiki K

更新日期：2001-11-01 00:00:00

abstract：:The statistics of estimators used with the endpoint assay for virus titration were investigated. For a standard assay with 10 wells/dilution, the graphical estimator traditionally used was found to produce estimates with significant positive bias and a relatively low accuracy. Furthermore, the graphical estimator was ...

journal_title：Cytotechnology

authors： Nielsen LK,Smyth GK,Greenfield PF

更新日期：1992-01-01 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：:The presence of a highly purified recombinant interleukin-2 (rIL-2) increased the production of immunoglobulin (IgM or IgG) by human-human hybridomas to 1.5-2.0 times the production by untreated cells. However, these cells did not react with anti-Tac (IL-2 receptor alpha) antibody. To enhance the response of the hybri...

journal_title：Cytotechnology

authors： Iwamoto K,Shintani Y,Sasada R,Honjo T,Kitano K

更新日期：1990-07-01 00:00:00

abstract：: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 dise...

journal_title：Cytotechnology

authors： Doğan A,Demirci S,Kıratlı B,Şahin F

更新日期：2017-02-01 00:00:00

abstract：:In previous studies, vascular smooth muscle progenitor cells (vSMPCs) isolated from peripheral blood mononuclear cells (PBMCs) were cultured using medium containing platelet-derived growth factor-BB (PDGF-BB) for 4 weeks. However, this method requires long culture periods of up to 4 weeks and yields low cell counts. T...

journal_title：Cytotechnology

authors： Seong JH,Song YS,Joo HW,Park IH,Shen GY,Shin NK,Lee AH,Kwon AM,Lee Y,Kim H,Kim KS

更新日期：2020-10-01 00:00:00