品牌简介： 全球顶级的ELISPOT试剂盒生产商之一。公司创始人Schielen较早将PVDF膜板引入了ELISPOT，大大提高了ELISPOT的灵敏度。提供人、灵长类、大鼠、小鼠的T细胞、B细胞的ELISPOT kit，ELISA kit 及相关配套试剂。 产品描述说明：U-CyTech biosciences offers B cell ELISPOT kits for detection of human, monkey and mouse antibody secreting cells (ASCs) in blood or tissue samples. Long-lived memory B cells and plasma cells are responsible for the humoral immunity elicited by most vaccines or infections. The traditional method to monitor a humoral response after immunization or infection is to quantify specific antibody levels in serum by ELISA. However, the actual correlate of protection is mediated by circulating antibodies in combination with antibody producing memory B cells. The B cell ELISPOT assay has proven particularly useful to determine the number of individual antibody-producing memory B cells in single cell suspensions e.g. peripheral blood, lymph nodes or spleen cells. Memory B cells, which have a long lifespan, play a central role in the rapid response after re-exposure to the specific antigen. While being quiescence, the presence of memory B cells cannot be determined by ELISA. A major advantage of the B cell ELISPOT assay is its ability to activate ex vivo antigen-specific memory B cells, whereafter they can be measured.