Occurrence of paired cisternae in the cytoplasm of interphase murine mammary carcinoma cells.
The presence of paired cisternae in the cytoplasm interphase murine mammary carcinoma cells is described. The paired cisternae are composed of about 65A thin trilaminated membranes, about 65A in thickness, with ribosomes attached to the outer membranes, but with smooth adjacent membranes between the cisternae. The function and origin of these structures were not clarified, but it is suggested that they represent surplus fragments of nuclear envelope material.
D000818:Animals; D002277:Carcinoma / Q000473:pathology*; D002467:Cell Nucleus / Q000648:ultrastructure; D004721:Endoplasmic Reticulum / Q000648:ultrastructure*; D008297:Male; D008325:Mammary Neoplasms, Experimental / Q000473:pathology*; D051379:Mice; D008809:Mice, Inbred C3H; D008811:Mice, Inbred DBA; D008938:Mitosis