Response definition criteria for ELISPOT assays revisited

The definition of 'poor response': Bologna criteria.

is believed to occur during the early stages of gamete fusion, and thus before the sperm tail is incorporated into the oocyte. Thus, our figure represents a specific temporal stage of fertilization and not the entire sequence of events. It would, therefore, be inaccurate and misleading to have shown the sperm tail incorporated into the oocyte at this stage. While we are content with the fact th...

Nosocomial Infections: The Definition Criteria

Dissecting the T Cell Response: Proliferation Assays vs. Cytokine Signatures by ELISPOT

Chronic allograft rejection is in part mediated by host T cells that recognize allogeneic antigens on transplanted tissue. One factor that determines the outcome of a T cell response is clonal size, while another is the effector quality. Studies of alloimmune predictors of transplant graft survival have most commonly focused on only one measure of the alloimmune response. Because differing qual...

Equivalence of ELISpot Assays Demonstrated between Major HIV Network Laboratories

BACKGROUND The Comprehensive T Cell Vaccine Immune Monitoring Consortium (CTC-VIMC) was created to provide standardized immunogenicity monitoring services for HIV vaccine trials. The ex vivo interferon-gamma (IFN-γ) ELISpot is used extensively as a primary immunogenicity assay to assess T cell-based vaccine candidates in trials for infectious diseases and cancer. Two independent, GCLP-accredite...

Stepping up ELISpot: Multi-Level Analysis in FluoroSpot Assays

ELISpot is one of the most commonly used immune monitoring assays, which allows the functional assessment of the immune system at the single cell level. With its outstanding sensitivity and ease of performance, the assay has recently advanced from the mere single function cell analysis to multifunctional analysis by implementing detection reagents that are labeled with fluorophores (FluoroSpot)...