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Nucleolar morphological changes monitored by fibrillarin redistribution (fibrillarin: green, DAPI: gray) for ActD (5 nM), oxaliplatin (10 μM), phenanthriplatin (0.5 μM), and 1–3 (0.5 μM) at 24 h treatment in A549 cells (n = 3). The white arrow indicates nucleolar cap formation. Scale bar = 10 μm.
