Cellular debris

Cellular debris refers to the heterogeneous collection of apoptotic and necrotic remnants, including cell fragments, proteins, lipids, and nucleic acids, that are generated following cell death. In a therapeutic context, particularly in oncology, "debris" is recognized as a potent driver of tumor progression and metastasis through a process known as the Révész effect, where therapy-induced dead cells trigger a pro-inflammatory cytokine storm that stimulates the growth of surviving cancer cells. In neurodegenerative conditions such as multiple sclerosis and Alzheimer's disease, the accumulation of myelin and amyloid debris inhibits tissue repair and promotes chronic neuroinflammation. Therapeutic strategies targeting debris involve stimulating its clearance by phagocytic cells (efferocytosis) using specialized pro-resolving mediators (SPMs) like resolvins or inhibiting the downstream inflammatory signaling pathways triggered by debris components, such as the sEH and EP4 receptor pathways. This approach aims to improve the efficacy of cytotoxic treatments and prevent disease recurrence or secondary injury by resolving the inflammatory microenvironment.

Other names

Cell debrisNecrotic debrisApoptotic debrisMyelin debrisTumor cell debrisBiological debris