Often described as the cell’s “powerhouses,” mitochondria possess a remarkable ability to self-regulate and optimize their performance. These properties have made them a central focus of research into cellular aging. In particular, the transient “string of pearls” morphology they adopt during mitochondrial division — known as mitochondrial pearling — is attracting growing interest among cosmetic researchers.
Mitochondria are known as the cell’s energy factories. They possess their own genetic material — mitochondrial DNA (mtDNA) —which is distinct from the cell’s nuclear DNA and researchers at EPFL (École Polytechnique Fédérale de Lausanne) [1], in Switzerland, have recently shown that the transmission of mtDNA during cell division relies on a simple yet highly orchestrated change in mitochondrial shape. Dubbed mitochondrial pearling for its resemblance to a string of pearls, this transient phenomenon enables cells to distribute mtDNA with remarkable precision.
