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Acridine orange fluorescence in cell physiology, cytochemistry and medicine

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Summary

  1. 1.

    The article reviews history and theory of acridine orange fluorescence microscopy in application to (i) vital staining, (ii) fixed preparations.

  2. 2.

    Acridine orange as a cytotopochemical reagent for nucleic acids (DNA and RNA) is discussed in detail. This has especially been applied (i) to cytodiagnosis of cancer; (ii) in virus research; and (iii) in cell physiology.

  3. 3.

    The physicochemical and cytochemical bases of the acridine orange fluorescence technique after Bertalanffy et al. are presented in detail.

  4. 4.

    Correlations between RNA content, protein synthesis and cell renewal are demonstrated by the acridine orange technique.

  5. 5.

    Effects of radiation on cytoplasmic RNA are discussed with respect to clinical and experimental observations and their implications.

  6. 6.

    Acridine orange fluorescence leads to new concepts in the problem and theory of cancer. It emphasizes the possible role of cytoplasmic RNA (basophilia, ribosomes) in malignant growth. Recent facts and theories are discussed in view of the concept that cytoplasmic changes may play a more fundamental role in carcinogenesis than hitherto assumed.

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von Bertalanffy, L. Acridine orange fluorescence in cell physiology, cytochemistry and medicine. Protoplasma 57, 51–83 (1963). https://doi.org/10.1007/BF01252046

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