Histogenesis of hollow cell ball structure of ovarian and endometrial adenocarcinoma cells in vivo and in vitro.
Hollow cell ball structure is often found in the ascites of adenocarcinoma patients. How to form a hollow cell ball structure was studied in vivo and in vitro, using the human cell lines derived from ovarian and endometrial adenocarcinomas. The hollow cell ball structure was formed by horizontal rotation culture of 1 x 10(7) single-suspended cells for 24 hours or by transplanting 1 x 10(6) single-suspended cells into the peritoneal cavity of nude mouse for 24 hours. At one month after transplantation hemi-cyst and hollow cell ball structure were formed in the outermost layer of the grafted tumor on the intraperitoneal serous membrane in the nude mouse. And also great number of floating hollow cell ball structure in the ascites were observed. These results suggest that mechanisms of formation of hollow cell ball structure found in the ascites; one by cell aggregate of single cells, sometimes inner cells of cell aggregate fall into necrosis or secretes mucus inside and make a hollow cell ball structure and another by the removed as the hollow cell ball structure grown from hemi-cyst on the surface of intraperitoneal grafted tumor.
Ishiwata
I
I
Ishiwata Obstet. and Gynec. Hospital.
Kiguchi
K
K
Ishiwata
C
C
Soma
M
M
Nakaguchi
T
T
Ono
I
I
Tachibana
T
T
Hashimoto
H
H
Ishikawa
H
H
Nozawa
S
S
D000230:Adenocarcinoma / Q000473:pathology* / Q000648:ultrastructure; D018262:Adenocarcinoma, Clear Cell / Q000473:pathology* / Q000648:ultrastructure; D000818:Animals; D001202:Ascitic Fluid / Q000166:cytology / Q000473:pathology; D002454:Cell Differentiation; D018284:Cystadenocarcinoma, Serous / Q000473:pathology* / Q000648:ultrastructure; D003581:Cytodiagnosis; D016889:Endometrial Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D005260:Female; D006801:Humans; D008679:Metaplasia; D051379:Mice; D008807:Mice, Inbred BALB C; D008854:Microscopy, Electron; D009368:Neoplasm Transplantation; D010051:Ovarian Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D010529:Peritoneal Cavity / Q000166:cytology / Q000473:pathology; D012399:Rotation; D014407:Tumor Cells, Cultured