Inducing immunogenic (immunostimulatory) apoptotic cell death in cancerous cells is very beneficial
because it induces a host anti-tumour immune response. However, often tumors develop apoptosis
resistance and induction of immunogenic apoptosis is not any more an option. In order to overcome
apoptosis resistance, it is of great importance to find other ways to kill tumor cells by triggering cell
death modalities different from apoptosis. Recently, it has been discovered that besides apoptosis
there are other cell death modalities, which are grouped under the umbrella term regulated
necrosis. Until now most of the work on immunomodulatory characteristics of dead cancerous cells
was done by using two-dimensional systems (2D), which does not fully recapitulate in vivo
interaction of dying cells with the immune system. However, in recent years, it has become clear
that bioprinting of cancerous cells with biomaterials can create a three-dimensional (3D)
microenvironment overcoming the limits of 2D cultures. The major aim of this proposal is to fully
understand the immuno-modulatory role of tumour cells undergoing different cell death modalities
in a 3D context. It is conceivable that immunostimulatory biomaterials may lead to synergistic
immunogenic effects of dying cancerous cells. Next, we want to investigate whether combining
immunostimulatory biomaterials and immunogenic cell death modalities will lead to an enhanced
anti-tumour immune response.