People are suddenly very concerned about the powerhouse of the cell.

Hijacking the energy-producing organelles from immune cells seems to help tumours in mice to infiltrate lymph nodes.

How cancer cells subvert immunity to colonize the lymph node remains unclear. Terasaki et al. uncover that lymph node metastasis may be driven by an immune-to-cancer mitochondria transfer axis that impairs immune function and augments cancer immune evasion programs through type I interferon signaling.

Scientists have developed a new method to boost the energy of aging or damaged cells, an innovation that could improve treatment of a variety of conditions.