Morphological profiling of human T and NK lymphocytes identifies actin-mediated control of the immunological synapse
Year: 2020
Type: preprint
Abstract: The detection and neutralization of infected cells and tumors by cytotoxic lymphocytes is a vital immune defense mechanism. The immunological synapse orchestrates the target recognition process and the subsequent cytotoxic activity. Here, we present an integrated experimental and computational strategy to systematically characterize the morphological properties of the immunological synapse of human cytotoxic lymphocytes. Our approach combines high-content imaging with an unbiased, data-driven identification of high-resolution morphological profiles. Such profiling discriminates with high accuracy immunological synapse perturbations induced by an array of actin drugs in both model cell lines and primary lymphocytes. It reveals inter-individual heterogeneity in lymphocyte morphological traits. Furthermore, it uncovers immunological synapse alterations in functionally defective CD8 + T cells from immunodeficient patients carrying ARPC1B mutations. Our study thus provides a foundation for the application of morphological profiling as a powerful and scalable approach to monitor lymphocyte activation status in experimental and disease settings.
Institutions: Centre National de la Recherche Scientifique, Université Toulouse III - Paul Sabatier, Inserm, Centre de Physiopathologie de Toulouse-Purpan, Ludwig Boltzmann Institute for Rare and Undiagnosed Diseases, Austrian Academy of Sciences, Institut de Recherche en Santé Digestive, St Anna Children's Hospital, Medical University of Vienna
Language: English
Subfield: Biophysics
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W2999059804