Abstract:
:Two commercially available bioreactor systems, CELLine and miniPERM, were evaluated for their ability to support the production of monoclonal antibody (mAb) from a variety of murine hybridoma cell lines. Production and purity of mAbs were compared between the two systems and with mouse ascites tumour fluid generation. The quality and purity of the mAb generated by each method was analysed on SDS-PAGE gels and the antibody immunoreactivity in each case was quantified by indirect ELISA tests. The relative benefits of conventional growth medium (Dulbecco's modified Eagle's media, DMEM) and serum-free medium (hybridoma serum-free media, H-SFM) using the miniPERM system were also analysed, in terms of the amount of antibody produced, cell concentration and specific antibody titre. In all cases, the CELLine units tested gave higher protein concentrations compared to the miniPERM system under the same conditions (means and 95% confidence limits are 4.2+/-0.8 and 2.1+/-0.8 mg/ml, respectively), yet the miniPERM system yielded greater total amounts over a similar culture period (428.7+/-243.3 mg compared to 183.3+/-100.9 mg in the CL-350 CELLine unit). When defined by specific ELISA titre, both bioreactor systems yielded mAb levels that compared favourably with those derived from ascites. In addition, SDS-PAGE analysis indicated that the bioreactor antibody product was relatively free of contaminating protein, whereas ascites tumour fluid preparations displayed significant levels of extraneous protein. This study has shown that both bioreactor systems are acceptable in vitro alternatives to the in vivo production of mAbs in mice.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
Bruce MP,Boyd V,Duch C,White JRdoi
10.1016/s0022-1759(02)00081-9keywords:
subject
Has Abstractpub_date
2002-06-01 00:00:00pages
59-68issue
1-2eissn
0022-1759issn
1872-7905pii
S0022175902000819journal_volume
264pub_type
杂志文章abstract::A sensitive procedure based on the use of iodinated antibody allows the detection of antigenic material by double-diffusion analysis. An autoradiographed immunodiffusion pattern reveals distinct radio-labeled precipitation lines for an extract of yeast with wild type HIS4 protein and for extracts of mutants containin...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(78)90048-0
更新日期:1978-01-01 00:00:00
abstract::Transduction of bone marrow stem cells with retroviral expression vectors represents a cheaper and more rapid alternative to conventional transgenesis for studies of in vivo gene function. However, achieving tissue-specific expression of genes inserted into retroviral vectors is notoriously difficult. We have develope...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2010.06.007
更新日期:2010-08-31 00:00:00
abstract::Accurate detection of apoptotic cells is important for the determination of cell viability. The aim of this study was to compare the sensitivity of the cell permeant SYTO 16 fluorescent dye for detecting early apoptotic mononuclear cells (MNCs) in normal donor blood with other apoptosis assays [i.e. Annexin-V, light s...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2005.07.017
更新日期:2005-10-30 00:00:00
abstract::Lymph node cells from guinea pigs immunized to oxidized ferredoxin (O-Fd) were treated in an antigen suicide procedure designed to inactivate lymphocytes binding the haptenic peptide determinants of the ferredoxin molecule. O-Fd-induced DNA synthesis and cells binding either peptide determinant were examined both befo...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(76)90160-5
更新日期:1976-03-01 00:00:00
abstract::A monoclonal antibody prepared against the murine interleukin-2 receptor (IL-2R) was employed to develop an ELISA method for measuring the immunological activation of T-cells. The assay detects an increase in IL-2R expression on activated lymphocytes. Stimulated splenic lymphocytes displayed markedly higher IL-2R expr...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(87)90114-1
更新日期:1987-02-26 00:00:00
abstract::A method for bleeding rats from the tail vein was developed. Sufficient vasodilation of the tail was accomplished by the use of a specially designed warming device. With the help of a physical restrainer, up to 5 ml of blood can be collected from the tail vein and no anaesthesia is required. This bleeding procedure is...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(82)90148-x
更新日期:1982-09-17 00:00:00
abstract::Monoclonal antibodies (Mab) are the fastest growing group of biopharmaceuticals in development. For production in mammalian cells, the four polypeptide chains of the immunoglobulin diheterotetramer must be assembled prior to exit from the endoplasmic reticulum. Various recombinant Mab expression vectors have been deve...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2006.10.010
更新日期:2007-01-10 00:00:00
abstract::The metaphase index assay (MIA) for thyroid growth stimulators, as originally described, used FRTL-5 thyroid cells cultured in Bellco culture chambers and glass microscope slides. The metaphases were observed using the nuclear strain aceto-lacto orcein. However the surface properties of the glass proved to be variable...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(88)90067-1
更新日期:1988-06-28 00:00:00
abstract::The technology of the mixed antiglobulin rosetting (MARR) and the direct antiglobulin rosetting reaction (DARR) is reviewed. These tests have been found to be more sensitive than the standard direct immunofluorescence (DIF) method for delineation of Ig-bearing B lymphocytes and to have practical advantages over DIF. F...
journal_title:Journal of immunological methods
pub_type: 杂志文章,评审
doi:10.1016/0022-1759(81)90268-4
更新日期:1981-01-01 00:00:00
abstract::One possible method to inhibit specifically the function of a protein inside a cell is to express an intracellular antibody combining site that can block function or prevent expression of the targeted molecule. In this report the parameters involved in the production and expression of functional, endoplasmic reticulum...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(96)00074-9
更新日期:1996-08-14 00:00:00
abstract::The in vitro assessment of T-cell-mediated cytotoxicity plays an important and increasingly relevant role both in preclinical target evaluation and during immunomonitoring to accompany clinical trials employing targeted immunotherapies. For a long time, the gold standard for this purpose has been the chromium release ...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2014.01.012
更新日期:2014-03-01 00:00:00
abstract::The production and characterisation of 17 monoclonal antibodies to human parathyroid hormone-related protein (PTH-rP) 1-34 is described. Five of the antibodies were shown to be of high avidity (Ka 4 X 10(10)-1.9 X 10(11) L/M) and able to detect 15-100 pg PTH-rP 1-34 per tube by RIA. None cross-reacted with PTH 1-34, a...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(90)90346-w
更新日期:1990-02-20 00:00:00
abstract::Using in vitro established tumour cell lines attempts were made to assess the suitability of tetrazolium salt reduction (MTT) assay to replace the conventional radioactive base techniques for measuring cell proliferation and cell killing. The optimum conditions for MTT loading time, concentration of MTT and the time f...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(93)90012-v
更新日期:1993-03-15 00:00:00
abstract::A method for synthesising omega-stearoyldextran for the detection of plaque forming cells specific for the alpha-(1 replaces 6) determinant is described. The omega-stearoyl derivative is obtained by reacting dextran with phenylboronic acid to give a 2,4-phenylboronate, which can be subsequently esterified in a pyridin...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(76)90206-4
更新日期:1976-01-01 00:00:00
abstract::Ranibizumab (Lucentis®), a humanized antigen-binding fragment (Fab) monoclonal antibody that blocks VEGF-A activity, is currently approved for the treatment of several retinal degenerative diseases. The assessment of drug pharmacokinetics (PK) is essential for evaluating exposure as it relates to drug safety and effic...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2018.05.007
更新日期:2018-10-01 00:00:00
abstract::We evaluated an enzyme-linked immunosorbent assay (ELISA) for antibodies to native DNA (nDNA) in which protamine was used to link DNA to polystyrene. Elevated anti-nDNA was largely restricted to patients with systemic lupus erythematosus (SLE), and within this group good correlation between ELISA and the ammonium sulf...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/s0022-1759(83)80009-x
更新日期:1983-10-28 00:00:00
abstract::The sensitivity and specificity of immunohistological staining procedures employing horseadish peroxidase labeled antibody were evaluated with the aid of chessboard titrations. Two indirect staining systems, detecting antinuclear antibody and pemphigus intercellular antibody, were examined with reference to indirect i...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(76)90081-8
更新日期:1976-01-01 00:00:00
abstract::An assay for detection of monoclonal hybridoma antibodies against cell surface antigens is described. Samples of spent medium from the hybridoma cultures are incubated in microtest wells with cells, either as adherent monolayers or in suspension. Antibodies bound to surface antigens are detected by successive incubati...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(79)90132-7
更新日期:1979-01-01 00:00:00
abstract::Measurement of the absorbance due to light scattering at 40 nm proved to be a simple and reliable way of assessing the extent of aggregation in heat-treated IgG solutions. Using this technique the rate of aggregation was demonstrated to be markedly temperature dependent with a sharp inflexion in the curve close to 63 ...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(81)90274-x
更新日期:1981-01-01 00:00:00
abstract::Pre-S2-coded sequences of the hepatitis B virus (HBV) represent important serological markers of HBV infection and elicit the antibodies essential for recovery from type B hepatitis. Monoclonal antibodies (McAbs) directed against two non-overlapping epitopes (pre-S2a and pre-S2b) of the pre-S2 protein of HBV were used...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(87)90108-6
更新日期:1987-02-26 00:00:00
abstract::Use of fluorescently labelled multimers, particularly tetramers of peptide and MHC class I glycoprotein (pMHC-I) complexes, is essential for the analysis of CD8+ T cell immunity in basic research and clinical settings. A recently described combinatorial approach using pMHC-I multimers coupled to a unique combination o...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2010.06.003
更新日期:2010-08-31 00:00:00
abstract::Ferromagnetic iron dextran particles were prepared by reacting a mixture of ferrous chloride and ferric chloride with dextran polymers under alkaline conditions. Particles purified by gel filtration chromatography were in the size range of 30-40 nm, had an electron dense core of about 15 nm, were stable against aggreg...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(82)90007-2
更新日期:1982-08-13 00:00:00
abstract::A simple Terasaki tray-based ELISA technique with a fluorescent detecting system has been used to determine the affinity of murine IgE antibodies. The system was shown to be sensitive enough to measure affinities in the range of 10(-6)-10(-10) M as well as detect IgE antibodies down to a limit of 0.1 ng/ml. The result...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(89)90031-8
更新日期:1989-09-29 00:00:00
abstract::As much as one percent of antibodies in human plasma are reported to be specific for the non-human disaccharide structure αGal. Various microbes express αGal. However, the implications of anti-αGal antibodies for the anti-microbial defenses are poorly established. With the perspective of studying the biological import...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2011.07.017
更新日期:2011-10-28 00:00:00
abstract:BACKGROUND:The serological screening for celiac disease (CD) is currently based on the detection of anti-transglutaminase (tTG) IgA antibodies, subsequently confirmed by positive endomysial antibodies (EMA). When an anti-tTG IgA positive/EMA IgA negative result occurs, it can be due either to the lower sensitivity of t...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2020.112910
更新日期:2021-02-01 00:00:00
abstract::The use of therapeutic antibodies, delivered by intravenous (IV) instillation, is a rapidly expanding area of biomedical treatment for a variety of conditions. However, little is known about how the antibodies are anatomically distributed following infusion and the underlying mechanism mediating therapeutic antibody d...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2017.07.009
更新日期:2017-11-01 00:00:00
abstract::We propose a new data analysis approach for reactive oxygen species detection using Dihydrorhodamine 123 in blood monocytes and neutrophils. This approach, based on data transformation using lymphocytes as internal standard, allows to appreciate free radical production by monocytes also without Phorbol 12-myristate 13...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2012.02.015
更新日期:2012-05-31 00:00:00
abstract::The purpose of this study was to compare and contrast two enzyme immunoassay systems: the enzyme-linked immunosorbent assay (ELISA), which utilizes polystyrene microtiter plates as the adsorptive surface and the enzyme-linked immunoflow assay (ELIFA), which utilizes nitrocellulose membranes. The principal parameter un...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/0022-1759(91)90152-6
更新日期:1991-08-09 00:00:00
abstract::Evaluation of human antibody responses to alpha-1 antitrypsin (AAT) in clinical trials and clinical practice has been limited by the lack of a validated assay. Here we describe the development and validation of an ELISA method for quantification of human and nonhuman primate antibody responses to human AAT. A referenc...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2012.11.008
更新日期:2013-02-28 00:00:00
abstract::Multiplex bead-based flow cytometry is an attractive way for simultaneous, rapid and cost-effective analysis of multiple analytes in a single sample. Previously, we developed various bead-based assays using non-magnetic beads coated with Staphylococcus aureus and Streptococcus pneumoniae antigens for the detection of ...
journal_title:Journal of immunological methods
pub_type: 杂志文章
doi:10.1016/j.jim.2016.06.003
更新日期:2016-09-01 00:00:00