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. 2009 Jan 9;15:1–9.

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This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Preservation of intact elongated photoreceptors in culture. Cells were dissociated using the enzymatic treatment with gentle pipeting (Protocol A) in dark-adapted conditions. After 7 days in culture, cells were visualized under epi-fluorescence illumination after immunostaining with anti-rhodopsin (A, D; green) and DAPI nuclear staining (B, E; blue). Merged images of rhodopsin (Rho) and DAPI (C, F, and G) showed the elongated outer segment still attached to the nucleus. Some rounded cells were still observed; but cells were, in majority, elongated. G: Arrows indicate the outer fiber connecting the outer-inner segment to the nucleus. Scale bars represent 5 µm.