Necrotic cell components

Necrotic cell components refer to the intracellular molecules, such as DNA, histones, and cytoskeletal proteins, that become accessible to extracellular agents following the loss of cell membrane integrity (Source: Epstein AL, et al., Cancer Res, 1988). In healthy cells, these components are sequestered within the cytoplasm or nucleus, but in necrotic or damaged tissue—common in the core of solid tumors or following ischemic events like myocardial infarction—they serve as specific anchors for targeted therapy and imaging (Source: Ni Y, et al., Invest Radiol, 2005). Therapeutic strategies, such as Tumor Necrosis Therapy (TNT), utilize monoclonal antibodies or small molecules to deliver cytotoxic radiation or contrast agents directly to these exposed antigens (Source: ClinicalTrials.gov, NCT00003111). This approach exploits the physiological difference between the permeable membranes of dead cells and the intact membranes of viable cells. While effective for targeting the hypoxic and necrotic regions of tumors that are often resistant to conventional chemotherapy, challenges include potential accumulation in non-malignant damaged tissues and the slow clearance of large targeting molecules (Source: Khaw BA, et al., J Nucl Med, 1997).

Other names

Necrotic coreIntracellular antigens in necrosisDNA-histone complexesNecrosis-associated antigensDamaged cell components

Binding to intracellular components, such as DNA and histones, that are exposed to the extracellular environment only when the cell membrane integrity is lost during necrosis.