Abstract：
:External proficiency testing programs designed to evaluate the performance of end-point laboratories involved in vaccine and therapeutic clinical trials form an important part of clinical trial quality assurance. Good clinical laboratory practice (GCLP) guidelines recommend both assay validation and proficiency testing for assays being used in clinical trials, and such testing is facilitated by the availability of large numbers of well-characterized test samples. These samples can be distributed to laboratories participating in these programs and allow monitoring of laboratory performance over time and among participating sites when results are obtained with samples derived from a large master set. The leukapheresis procedure provides an ideal way to collect samples from participants that can meet the required number of cells to support these activities. The collection and processing of leukapheresis samples require tight coordination between the clinical and laboratory teams to collect, process, and cryopreserve large number of samples within the established ideal time of ≤8 hours. Here, we describe our experience with a leukapheresis cryopreseration program that has been able to preserve the functionality of cellular subsets and that provides the sample numbers necessary to run an external proficiency testing program.
journal_name
J Immunol Methodsjournal_title
Journal of immunological methodsauthors
Garcia A,Keinonen S,Sanchez AM,Ferrari G,Denny TN,Moody MAdoi
10.1016/j.jim.2014.05.019subject
Has Abstractpub_date
2014-07-01 00:00:00pages
99-106eissn
0022-1759issn
1872-7905pii
S0022-1759(14)00181-1journal_volume
409pub_type
杂志文章abstract：:A high-cloning efficiency, filler cell-free limit-dilution culture system for the growth and differentiation of single cytotoxic T lymphocyte precursors (CTLp) was tested for its ability to maintain the lytic specificity of the resultant clones of cytotoxic T lymphocytes (CTL). The system used non-specific stimulation...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(91)90049-l
更新日期：1991-10-25 00:00:00
abstract：:Glutathione S-transferase (GST) is commonly used as a fusion partner in producing recombinant proteins and this technology is increasingly being used to produce antigens for use in immunoassays to measure antibodies. To circumvent the requirement to purify such antigens before use, we developed a method for coupling g...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(98)00114-8
更新日期：1998-09-01 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：:An immunoperoxidase and immunoalkaline phosphatase technique is described specially devised for separate cell specimens such as smears, cytospins, and tissue imprints. The reaction may be used alone or in combination for simultaneous staining with 2 different monoclonal antibodies. Monoclonal antibodies Leu3a, Leu2a, ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(83)90431-3
更新日期：1983-10-14 00:00:00
abstract：:An antibody detection ELISA was developed for diagnosis of visceral leishmaniasis. Antigens released by Leishmania donovani promastigotes into a protein-free medium were used. SDS-PAGE analysis has indicated that Ld-ESM contain several protein antigens. Titration and chequer-board analyses were performed to optimise t...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(01)00341-6
更新日期：2001-06-01 00:00:00
abstract：:An Ia-rosette assay for the detection of Ia-like alloantigens on the chicken lymphoid cell surface is described. The method is based on the ability of cells treated with alloantiserum to Ia and then with rabbit antiserum against the Fc portion of chicken IgG, to form rosettes with sheep erythrocytes (SRBC) coated with...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(81)90161-7
更新日期：1981-01-01 00:00:00
abstract：:A purification method for a human urinary glycoprotein (HGP92) dissociated from Tamm Horsfall protein (THP) is described. Tamm-Horsfall protein, obtained by salt precipitations, was again precipitated in presence of monovalent ions. In these conditions, Tamm-Horsfall protein displayed a tendency to form a gel. After u...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(95)00169-b
更新日期：1995-11-16 00:00:00
abstract：:Studies on the kinetics of antigenic peptide binding to major histocompatibility complex class II molecules have been used extensively to probe major histocompatibility complex (MHC) structure as well as to investigate the molecular mechanism of peptide recognition. Previous experiments have frequently been carried ou...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(94)90290-9
更新日期：1994-07-12 00:00:00
abstract：:A limiting dilution method for the efficient transformation by Epstein-Barr virus (EBV) of human B lymphocytes has been applied to the production of human monoclonal antibodies to ovarian cancer-associated antigens. Limited numbers (e.g., 2 X 10(5)) of EBV-infected B lymphocytes from ovarian cancer patient spleen, lym...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(87)90274-2
更新日期：1987-12-24 00:00:00
abstract：:The usefulness of cryopreserved sheep erythrocytes (unsensitized or coated with fluorescein, IgG-type antibody or complement) for marker tests on human blood lymphocytes was studied. It appears that the rosetting properties or freshly prepared or frozen-stored erythrocytes are not significantly different. The method m...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(76)90118-6
更新日期：1976-01-01 00:00:00
abstract：:In the context of allogeneic bone marrow transplantation, an accurate estimate of the risk of developing graft-versus-host disease (GVHD) is of major interest. The pre-transplant frequency of donor's helper T-lymphocyte precursors (HTLp) directed against host's antigens may be helpful in predicting this risk. This tec...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(98)00065-9
更新日期：1998-06-01 00:00:00
abstract：:Conditions for the reproducible measurement of thymic hormonal effect on the functional activity of human peripheral blood lymphocytes (PBL) were determined using a mixed lymphocyte-tumor culture assay. Three thymic hormonal preparations (thymopoietin, thymic humoral factor and TP-1) were tested by this assay and foun...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(80)90312-9
更新日期：1980-01-01 00:00:00
abstract：:We have studied the primate cellular requirements in the antibody forming cell (AFC) assay, using a 185,000 molecular mass streptococcal antigen. Cultures of B cells alone stimulated with the antigen were unable to develop into AFC. Reconstitution of B cells with T cells resulted in a significant increase in the numbe...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(90)90026-r
更新日期：1990-09-14 00:00:00
abstract：:An improved microassay for quantitation of murine macrophage-mediated antibody-dependent cellular cytotoxicity (ADCC) has been developed. The method is based on the turbidimetric measurement of sheep erythrocyte or nucleated (L1210) target cell suspensions at 630 nm with an automatic microtiter plate densitometer. The...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(86)90262-0
更新日期：1986-01-22 00:00:00
abstract：:When five cytotoxicity methods compared the toxicity of eosinophil granule major basic protein (MBP) and melittin to K562 and HL-60 cells, strikingly discrepant results were noted. Trypan blue staining, propidium iodide/CellTrackerGreen staining and incorporation of 14C-leucine assays indicated MBP damages > 75% of ce...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(99)00055-1
更新日期：1999-07-30 00:00:00
abstract：:An inhibitor to von Willebrand factor (vWf) was detected in the plasma from two patients with histories of mild bleeding and one patient with a severe deficiency in the Factor VIII complex using a competitive enzyme-linked immunosorbent assay (ELISA) procedure. IgG antibodies from the patients' plasmas were shown to b...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(96)00209-8
更新日期：1997-01-15 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：:Many labs wish to measure cytokines in an accurate, reproducible, and rapid manner. An antibody-based membrane array for measuring cytokines has been developed based on the same technology as the traditional ELISA. The aim of this study was to compare results obtained with the traditional ELISA method with those from ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2003.10.011
更新日期：2004-01-01 00:00:00
abstract：:We report a method for the precise mapping of linear epitopes by presenting a peptide library on the surface of Escherichia coli cells. A random library of gene fragments derived from the classical swine fever virus (CSFV) envelope protein E(rns) was generated by DNAse I cleavage and cloned into a specially designed b...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(01)00461-6
更新日期：2001-11-01 00:00:00
abstract：:Rabbit immunoglobulin G (RIgG) was reduced with dithioerythritol and analyzed by high performance liquid chromatography. A quantitative method for determining the percentage of reduced half-molecules in the mixture was developed. An acetic acid concentration-dependent rate of dissociation of reduced half-molecules was...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(87)90314-0
更新日期：1987-02-11 00:00:00
abstract：:The migration inhibition by soluble PPD of peripheral blood mononuclear cells showed a much better reflection of delayed hypersentitivity to tuberculin in man than the migration inhibition of buffy coat cells. The migration index (MI) with mononuclear cells in a group of tuberculin positive subjects was 0.51 +/- 0.14 ...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(76)90012-0
更新日期：1976-01-01 00:00:00
abstract：:A rapid and simple immunostick immunosorbent ELISA has been developed for the diagnosis of myasthenia gravis. It is based on coating immunosticks with the major myasthenia gravis autoantigens acetylcholine receptor (AChR) or MuSK and it can be performed in <1 h, in a non-specialized examination place by non-skilled pe...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2018.06.016
更新日期：2018-09-01 00:00:00
abstract：:Antibody phage display technology is a well established method for selecting specific antibodies against desired targets. Although phage display is the most widely used method of generating synthetic antibodies, it is laborious to perform multiple selections with different antigens simultaneously using conventional ma...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2010.09.034
更新日期：2011-03-31 00:00:00
abstract：:A procedure is described for the routine detection of RNA transcripts in small numbers of hematopoietic cells growing in semi-solid agar. It is suggested that hybridization depends upon RNA expression and that as few as 2500 mRNA molecules per colony are easily detected. Applications of this technique are described in...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(86)90430-8
更新日期：1986-10-23 00:00:00
abstract：:A scheme for quantitation of serum and urinary paraproteins is described using isoelectric focusing and scanning densitometry. Paraproteins could be quantified using this system when present at concentrations ranging from 1 mg/ml to 26 mg/ml, depending on the immunoglobulin class. The relevance of these results to mon...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(86)90082-7
更新日期：1986-06-24 00:00:00
abstract：:Bromodeoxyuridine (BrdU) is used to label synthesizing DNA and to chase label-retaining cell (LRC). As stem cells divide slowly in adult tissues, they can be visualized as LRCs. In order to identify LRCs in hard tissue, we examined optimal conditions of fixation, demineralization, and DNA denaturation/antigen retrieva...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/j.jim.2008.07.013
更新日期：2008-11-30 00:00:00
abstract：:A solid-phase immunofluorescence assay (SIFA) is described for screening of monoclonal hybridoma antibodies against soluble antigens. The test is simple, needs a small amount of material (20-100 ng of labeled antigen per sample) and allows a large number of samples (500-1 000) to be tested in 2 days. The assay is perf...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(81)90330-6
更新日期：1981-01-01 00:00:00
abstract：:There is an emerging trend in the pharmaceutical industry to evaluate a variety of surrogate biomarkers in Phase I/II clinical studies with the intention of determining potential activity of drugs early in clinical development. A number of cytokines expressed in pathological conditions are currently being considered a...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(01)00543-9
更新日期：2002-02-01 00:00:00
abstract：:Protein A containing staphylococci were saturated with human monomeric IgG (mIgG) and cross-linked with glutaraldehyde. The resulting material (SMG) preferentially bound aggregated IgG (aIgG) and soluble immune complexes (CIC). One milliliter of a 10% suspension of SMG bound approximately 30 micrograms of mIgG and 100...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/0022-1759(84)90259-x
更新日期：1984-01-20 00:00:00
abstract：:Control of pandemic human immunodeficiency virus type 1 (HIV-1) infection ideally requires specific mucosal immunity to protect the genital regions through which transmission more often occurs. Thus a vaccine that stimulates a disseminated mucosal and systemic protective immune response would be extremely useful. Here...
journal_title：Journal of immunological methods
pub_type： 杂志文章
doi：10.1016/s0022-1759(98)00145-8
更新日期：1998-11-01 00:00:00
