Lymphocyte transformation in epithelium.
D000818:Animals; D004721:Endoplasmic Reticulum; D004848:Epithelium / Q000033:anatomy & histology*; D007421:Intestine, Small / Q000033:anatomy & histology*; D008214:Lymphocytes; D008264:Macrophages; D051379:Mice; D008854:Microscopy, Electron; D008928:Mitochondria; D009000:Monocytes; D051381:Rats