Mito-Chlor

Mito-Chlor is a **mitochondria-targeted derivative of chlorambucil**, created by attaching a triphenylphosphonium group to chlorambucil to facilitate selective accumulation in cancer cell mitochondria. This design enables Mito-Chlor to localize and act on mitochondrial DNA (mtDNA), arresting the cell cycle and inducing cell death. Mito-Chlor demonstrates a mechanistic distinction from the parent drug chlorambucil by directly inhibiting mitochondrial genome transcription and causing mitochondrial dysfunction. In preclinical studies, it produced an 80-fold increase in cytotoxicity against breast and pancreatic cancer cell lines that are typically resistant to chlorambucil, and delayed tumor progression in mouse xenograft models of pancreatic cancer. Mito-Chlor serves as a prototype for repurposing and retargeting DNA alkylating agents towards mitochondrial pathways in oncology.[1][3][5]

Brand names

Mito-Chlor

Other names

mitochondrial-targeted chlorambuciltriphenylphosphonium chlorambucil derivative