Keratinocyte mitochondrial and DNA synthetic machinery

Keratinocyte mitochondrial and DNA synthetic machinery refers to the integrated cellular systems within skin cells responsible for energy metabolism and genomic replication. This term is primarily used in pharmacological literature to describe the multi-faceted mechanism of action of the antipsoriatic drug anthralin (dithranol) (StatPearls, 2023). Anthralin accumulates within the mitochondria of keratinocytes, where it disrupts the mitochondrial membrane potential and inhibits the electron transport chain, leading to a significant reduction in cellular ATP levels (PubChem, CID 2202). Concurrently, the drug interferes with DNA synthesis by inhibiting the activity of DNA polymerases and potentially intercalating into the DNA helix, which effectively arrests the rapid cell division characteristic of psoriasis (Journal of Investigative Dermatology, 1990). By targeting these fundamental processes, anthralin induces a cytostatic effect and promotes apoptosis in hyperproliferative epidermal cells, thereby normalizing skin turnover and reducing plaque formation (DrugBank, 2024). Although highly effective, the non-specific nature of targeting these broad cellular machineries often results in localized side effects such as skin irritation and staining.

Other names

Mitochondrial respiratory chainDNA replication machineryKeratinocyte proliferative machinery

Inhibition of mitochondrial electron transport and DNA synthesis, leading to reduced keratinocyte proliferation and induction of apoptosis.