Mitochondrial and cellular macromolecules

Mitochondrial and cellular macromolecules is a collective term encompassing the diverse array of large biological molecules—including proteins, nucleic acids (DNA and RNA), and lipids—that constitute the structural and functional framework of a cell and its mitochondria. Rather than representing a single therapeutic target, this term typically refers to the broad set of components affected by non-specific chemical insults, such as oxidative stress, ionizing radiation, or highly reactive drug metabolites. In a pharmacological context, damage to these macromolecules is often the primary mechanism of action for cytotoxic agents or the underlying cause of drug-induced toxicity. For instance, reactive oxygen species (ROS) generated by certain drugs can lead to lipid peroxidation, protein carbonylation, and DNA strand breaks, ultimately resulting in mitochondrial dysfunction and programmed cell death. Consequently, while these macromolecules are essential for life, they are frequently the site of off-target effects that limit the safety and efficacy of various therapeutic interventions.

Other names

Cellular macromoleculesMitochondrial componentsBiological macromolecules

Non-specific covalent binding, alkylation, or oxidative modification of proteins, lipids, and nucleic acids, leading to cellular dysfunction and death.