Journal
SCIENTIFIC REPORTS
Volume 12, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41598-022-14860-0
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- Associazione Italiana per la Ricerca sul Cancro (AIRC) [19786]
- Associazione Angela Serra per la Ricerca sul Cancro (Modena)
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Coordinated communication between mitochondria and the nucleus is crucial for cellular activities. Recent research has found that the protease Lonp1, previously believed to be exclusively located in the mitochondria, is also present in the nucleus and plays a role in the stress response.
The coordinated communication between the mitochondria and nucleus is essential for cellular activities. Nonetheless, the pathways involved in this crosstalk are scarcely understood. The protease Lonp1 was previously believed to be exclusively located in the mitochondria, with an important role in mitochondrial morphology, mtDNA maintenance, and cellular metabolism, in both normal and neoplastic cells. However, we recently detected Lonp1 in the nuclear, where as much as 22% of all cellular Lonp1 can be found. Nuclear localization is detectable under all conditions, but the amount is dependent on a response to heat shock (HS). Lonp1 in the nucleus interacts with heat shock factor 1 (HSF1) and modulates the HS response. These findings reveal a novel extramitochondrial function for Lonp1 in response to stress.
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