eLife · 11 authors, 9 centres
This summary was generated by AI from a single paper. It has not been reviewed by a clinician and is not clinical advice. Verify against the source before acting on it.
Using mammalian cell knockdown experiments and mass spectrometric lipid profiling, the authors show that TANGO2 deficiency disrupts phospholipid and neutral lipid metabolism, leading to elevated lysophosphatidic acid, reduced phosphatidic acid and cardiolipin, enlarged lipid droplets, and increased reactive oxygen species.
This preclinical study used mammalian cell culture to investigate TANGO2 function in lipid homeostasis. Morphological analysis showed TANGO2 localizes predominantly to mitochondria and partially to ER–lipid droplet–mitochondria juxtapositions. Mass spectrometric quantification revealed markedly high lysophosphatidic acid and low phosphatidic acid levels in TANGO2-deficient cells, with cardiolipin also substantially reduced. These lipid abnormalities were exacerbated under low-nutrient conditions. Many features recapitulated properties in patient-derived cells.
