Open AccessTHE PRESENCE OF INTRACYTOPLASMIC CONFRONTING CISTERNAE OF THE ENDOPLASMIC RETICULUM IN OSTEOSARCOMA CELLS IN INTERPHASE
Author(s) -
Nakanishi Isao,
Katsuda Shogo,
Okada Yoshikatsu,
Oda Yoshio,
Matsubara Fujitsugu
Publication year - 1986
Publication title -
acta patholigica japonica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 74
ISSN - 0001-6632
DOI - 10.1111/j.1440-1827.1986.tb01478.x
Subject(s) - endoplasmic reticulum , interphase , golgi apparatus , mitosis , microbiology and biotechnology , biology , nuclear membrane , chemistry , nucleus
Confronting cisternae of the endoplasmic reticulum recognized in tumor cells of 7 cases of osteosarcoma were presented. They were found in the mitotic cells as well as in the cytoplasms of interphase cells. The more the mitotic cells were observed in 1 μm‐thick sections, the more frequently those membranous structures were encountered in the corresponding ultrathin sections. In the interphase cells, such structures were located around Golgi apparatus or close to the nucleus. Occasionally, they were composed of a pair of closely apposed cisternae of the nuclear membrane and the rough endoplasmic reticulum. These results seem to indicate that the nuclear envelope which is disrupted and reformed during mitosis in rapidly proliferating cells takes part in the formation of the confronting cisternae of the endoplasmic reticulum.