Some features of the metastatic cancer cells in prostaglandin production.
In order to establish metastatic lesions, 2.5 x 10(6) AH100B cells were injected into the left carotid artery of male Donryu rats. Each metastatic nodule in the liver or kidney, 1 mm or less in diameter, thus obtained was then injected into the peritoneal cavity in which these metastatic cells come to free. About 3 weeks later, each ascites was collected from the rats, while not bloody. Then, cancer cells obtained from each ascites were suspended in Dulbecco's PBS without Ca2+ and Mg2+ (pH 7.2) after washing. Then, 10(6) metastasized or control cancer cells were incubated in 0.1 ml of PBS mentioned above together with 0.1 microCi of (1-14C)-AA at 24 degrees C for 3 min, respectively. After the extraction procedure, AA metabolites formed were separated by means of TLC, and each TLC plate was subjected to autoradiography. In the metastasized cells, PG production ability was generally accelerated and especially in that of PGF2 alpha as compared with that of the control.
Nakazawa
I
I
Third Department of Internal Medicine, Tohoku University School of Medicine, Sendai.
Iwaizumi
M
M
Ohuchi
K
K
D000818:Animals; D016718:Arachidonic Acid; D001095:Arachidonic Acids / Q000378:metabolism; D015237:Dinoprost / Q000096:biosynthesis; D007680:Kidney Neoplasms / Q000378:metabolism / Q000556:secondary; D008114:Liver Neoplasms, Experimental / Q000378:metabolism / Q000556:secondary; D008297:Male; D009362:Neoplasm Metastasis / Q000503:physiopathology*; D010534:Peritoneal Neoplasms / Q000378:metabolism / Q000556:secondary; D011453:Prostaglandins / Q000096:biosynthesis*; D051381:Rats; D013929:Thromboxane B2 / Q000096:biosynthesis
D001095:Arachidonic Acids; D011453:Prostaglandins; D016718:Arachidonic Acid; D013929:Thromboxane B2; D015237:Dinoprost