CapricoBiotechnology’s high-quality fluorescent labeled antibodies are used for cellular immunophenotyping in clinical diagnosis, immunotherapy monitoring, and clinical trials. Immunophenotyping—a laboratory procedure used to study the proteins expressed by cells—is very commonly used in basic science research as well as in laboratory diagnostic testing. It can be done on tissue sections (fresh or fixed tissue), cell suspensions, and so on. We offer a number of immunophenotyping kits to evaluate the efficacy of any immunotherapy against cancer (e.g., CD3-, CD117-, CD71-, and CD25-expressing cells) and to determine CD4 expression by T cells and macrophages in HIV-infected patients after highly active antiretroviral therapy (HAART). Our R&D team is developing additional immunophenotyping kits for diagnosing the status of blood cancer (e.g., CD117-, CD71-, and CD25-expressing cells) and also for use with a cocktail of antibodies to quantify the number of CD4+ T cells per mL of blood for AIDS diagnosis.