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Updated: Jul 15, 2026

Mitochondrial Ca2+ Retention Capacity Assay and Ca2+-triggered Mitochondrial Swelling Assay
Published on: May 1, 2018
Non-apoptogenic Ca2+-related extrusion of mitochondria in anoxia/reoxygenation stress
Annalisa Dorio1, Claudia Cerella, Milena De Nicola
1Dipartimento di Biologia, Università di Roma Tor Vergata, via Ricerca Scientifica 1, 00133 Roma, Italy.
Abstract:
Tumor cells often develop molecular strategies for survival to anoxia/reoxygenation stress as part of tumor progression. Here we describe that the B lymphoma Epstein-Barr-positive cells E2r survive reoxygenation in spite of a very high and long-lasting increase in cytosolic Ca2+ and the loss of about half of their mitochondria due to specific extrusion of the organelles from the cells. The extrusion typically occurs 3 days after reoxygenation, and a regular mitochondrial asset is regained after further 24 h.
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