Many scientists performing preclinical and clinical research hit a point when they need to have an assay validated. You may have painstakingly developed and perfected a particular assay, but now you must put it through the rigors of validation for it to be considered a “validated assay.” The basic principles of assay validation were described in an earlier blog post, but how do you know you if you need an assay validated? Use these questions as a guide to help you figure out your validation situation and get a little less vexed about validation.

Many basic and clinical immunology studies that focus on T cells include proliferation assays in order to determine if T cells are capable of proliferating under different in vitro or in vivo conditions. Flow cytometry is the ideal approach for measuring T cell proliferation and a suite of staining products…

The immune system is comprised of a multitude of unique cell subsets. Each cell type, from B and T cells, to macrophages, monocytes and dendritic cells, have been phenotypically subdivided into unique subsets as we learn more about the phenotypic signatures that define these cells. Flow cytometry has been the central tool in evaluating and defining cell subsets, and major advances in immunophenotyping have occurred recently as more parameters can be measured during a single run on newer flow cytometers.

Flow cytometry is a powerful tool for surveying the cellular landscape during preclinical development of drugs and biologics. But flow cytometry can go beyond immunophenotyping to actual functional measurements that can contribute to understanding the true potential of a therapeutic candidate. To make the most of your flow cytometry studies, consider these other assays as you plan the next phase of preclinical development.

The flow cytometry market is filled with an abundance of products for mouse and human samples. But what if your studies use different species? Fortunately, many antibodies for standard cell markers can work on multiple species, and more species-specific reagents are becoming available.

The term 'Dendritic Cells' (DCs) represents a family of immune cells derived from CD34+ hematopoietic stem cells in the bone marrow, with various functions that provide a key link between the innate and adaptive immune responses. The most widely described function of DCs is to capture, process, and present antigens to adaptive immune cells and mediate their transition to effector functions. In fact, DCs are the only antigen-presenting cells capable of stimulating naïve T-cells. In recent years, DCs have become the focus of translational research efforts to describe the role these cells play in allergies, autoimmunity, and cancer as well as their role in vaccine responses. In this blog, we explore the flow cytometry approaches used to examine DCs and their potential as therapeutic targets.