Front. immunol. Front. immunol. All about (nk cell-mediated) death in two acts and an unexpected encore: initiation, execution and activation of adaptive immunity Ramírez-Labrada Ariel Pesini Cecilia Santiago Llipsy Hidalgo Sandra Calvo-Pérez Adanays Oñate Carmen Andrés Tovar A. Garzón-Tituaña Mar Uranga-Murillo Iratxe Arias Maykel A. Galvez Eva M. Pardo Julián Universidad de Zaragoza 2022 research-article