Analysis Tools
respiratory system
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• doxycyline treated mice exhibit an increase in proliferation of epithelial cells lining conducting airways
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• papillary epithelial hyperplasia is seen as early as 4-6 weeks of age in mice treated with doxycycline
• papillary epithelial hyperplasia is characterized by a hypercellular epithelium lining papillae with fibrovascular cores that protrude into the airway lumens
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• doxycyline treated mice exhibit an increase in proliferation of nonciliated bronchial and bronchiolar Clara cells
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• mice treated with doxycycline exhibit bronchiolar epithelial hyperplasia, producing papillae composed of fibrovascular cores lined by a hypercellular epithelium protruding into the airway lumens consisting of enlarged cells
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• mice treated with doxycycline exhibit bronchial epithelial hyperplasia, producing papillae composed of fibrovascular cores lined by a hypercellular epithelium protruding into the airway lumens consisting of enlarged cells
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endocrine/exocrine glands
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• pulmonary neuroepithelial cell hyperplasia, with a 2-fold increase in the number of pulmonary neuroendocrine cells in mice treated with doxycycline
• however normal respiratory epithelial cell differentiation and respiratory epithelial cell polarity
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nervous system
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• pulmonary neuroepithelial cell hyperplasia, with a 2-fold increase in the number of pulmonary neuroendocrine cells in mice treated with doxycycline
• however normal respiratory epithelial cell differentiation and respiratory epithelial cell polarity
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neoplasm
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• overt pulmonary tumors are not observed in doxycycline treated mice at 6 weeks of age
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