Myosin-like microfilaments in the human normal and pathological testis

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Abstract
The immunofluorescent staining of the human normal testis shows that both peritubular and tubular cells bind antimyosin-like antibodies. The same cells are provided with a large amount of microfilaments within the cytoplasm. The thin microfilaments observed by electron microscopy in various cells of the human testis likely correspond to the sites of immunofluorescent staining. In pathological specimens there can be observed a decrease in peritubular smooth muscle cells associated with a decrease in cytoplasmic microfilaments and in the immunofluorescent staining of some cells.