Abstract：
:Lanthanides (Ln) were known to induce cell apoptosis, which might be the results of their effects on mitochondria (MT). This study was trying to clarify the role of MT and reactive oxygen species (ROS) in Ln-induced apoptosis. We found that micromolar or lower concentration of La(3+), Gd(3+) and Yb(3+) bound to MT and induced swelling of isolated MT; EGTA treatment can inhibit the process. In addition, La(3+), Gd(3+) and Yb(3+) increased the MT membrane fluidity and decreased the MT membrane potential (DeltaPsi(m)). All these were inferred to the results of MT permeability transition pore opening. Release of cytochrome c (Cyt-c) from the MT upon incubation with Ln ions was monitored by immunocytochemistry, however, Cyt-c release was observed only in the cytosol of cells. In parallel with these events, there was a higher level of ROS found in the cells exposed to Ln. It was proposed that Ln-induced apoptosis via the MT pathways and it was highly possible that ROS were involved in the mechanism.
journal_name
Chem Biol Interactjournal_title
Chemico-biological interactionsauthors
Liu H,Yuan L,Yang X,Wang Kdoi
10.1016/s0009-2797(03)00072-3subject
Has Abstractpub_date
2003-07-25 00:00:00pages
27-37issue
1eissn
0009-2797issn
1872-7786pii
S0009279703000723journal_volume
146pub_type
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journal_title：Chemico-biological interactions
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journal_title：Chemico-biological interactions
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journal_title：Chemico-biological interactions
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journal_title：Chemico-biological interactions
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journal_title：Chemico-biological interactions
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journal_title：Chemico-biological interactions
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journal_title：Chemico-biological interactions
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journal_title：Chemico-biological interactions
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