Regimen-level – multiple cellular components in proliferating cells

The term "Regimen-level – multiple cellular components in proliferating cells" refers to a therapeutic strategy rather than a single molecular target. It describes the collective action of cytotoxic chemotherapy regimens that disrupt various essential processes in rapidly dividing cells, such as DNA replication, RNA transcription, and microtubule dynamics (IUPHAR/BPS Guide to Pharmacology). These regimens typically involve agents that interfere with DNA integrity, nucleotide synthesis, and the mitotic apparatus, thereby selectively killing rapidly dividing cells (National Cancer Institute). By hitting multiple cellular components simultaneously, these regimens aim to maximize tumor cell kill and circumvent the development of resistance. While effective at reducing tumor burden, the "target" is the cell cycle itself, which is shared by healthy tissues, leading to significant side effects like myelosuppression and gastrointestinal distress (PubMed: 26848156). For a biotech analyst, this entry represents a broad-spectrum cytotoxic approach rather than a precision medicine target. It highlights the historical shift from systemic cell-cycle disruption to modern targeted therapies that focus on specific oncogenic drivers.

Other names

Cytotoxic chemotherapyMulti-target cytotoxic regimenCell cycle-specific therapyCHEMBL2363066

Disruption of DNA replication, induction of DNA strand breaks, inhibition of metabolic pathways for nucleotide synthesis, and stabilization or destabilization of microtubules during mitosis.