Cell Biology Monographs: Lysosomes

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This brief monograph serves as a concise introduction to the field of lysosomes, primarily aimed at non-specialists. Given the rapid growth of literature on this topic, achieving exhaustive comprehensiveness is impractical. Fortunately, a wealth of reviews has emerged in recent years, providing valuable insights into the history and function of lysosomes. Key contributors to the field are still available for first-hand discussions, enhancing the understanding of these organelles. The contents include general considerations and background, starting with perspectives and definitions. It outlines functional categories, detailing lysosome functioning in phagocytes and introducing additional terms such as heterophagy and autophagy. The characterization of lysosomes covers their basic biochemical characteristics, key features, lysosomal enzymes, and the digestion process within lysosomes. It also addresses lysosomal permeability and includes cytochemical and morphological characteristics, along with methods and studies involving exogenous tracers. This monograph is designed to provide a foundational understanding of lysosomes, making complex concepts accessible to a broader audience while highlighting significant research and developments in the field.