title: Comparison of metaphase and interphase nucleolar activity in Hela-CCL2 cells and PHA-stimulated human lymphocytes.
abstract: Metaphase and interphase nucleolar activity in cultured Hela-CCL2 cells and PHA-stimulated human lymphocytes have been studied with silver nitrate staining. In metaphase, we examined the relationship between the actual number of active NORs (AgNORs) and total number of NOR-bearing acrocentrics. Interphase silver staining over the nucleus was analyzed cytodensitometrically and morphologically. From all investigations, Hela-CCL2 cells and lymphocytes were shown to have similar levels of nucleolar activity. Our results suggest that there is a form of regulation of nucleolar activity in malignant Hela-CCL2 cells as compared to PHA-stimulated human lymphocytes.
mesh_terms: D002466:Cell Nucleolus / Q000648:ultrastructure*; D002478:Cells, Cultured; D006367:HeLa Cells / Q000166:cytology; D006801:Humans; D007399:Interphase; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000166:cytology* / Q000276:immunology; D008677:Metaphase; D012834:Silver; D013194:Staining and Labeling
chemical_list: D012834:Silver