In vitro cellular cytotoxicity for a human colon cancer cell line by mucosal mononuclear cells of patients with colon cancer and other disorders. Cancer 1985 Mar 01;55(5):1024-9
Date
03/01/1985Pubmed ID
3967187DOI
10.1002/1097-0142(19850301)55:5<1024::aid-cncr2820550517>3.0.co;2-qScopus ID
2-s2.0-0021942002 (requires institutional sign-in at Scopus site) 11 CitationsAbstract
In vitro cellular cytotoxicity of mononuclear cells of intestinal mucosa and peripheral blood for a colon cancer cell target was measured in patients with colon cancer and other disorders requiring resection. Four- and 24-hour cytotoxicity assays were conducted using selenium 75 (75Se)-labeled RPMI-4788 human colon cancer target cells grown in culture. In the cancer group mean cytotoxicity was 30.4% at 24 hours for peripheral blood effectors and 8.0% for effectors from normal mucosa. Values in patients with Crohn's disease were 10.4% for blood and 17.2% for effectors from normal mucosa, and 13.6% and 18.5%, respectively, for blood and abnormal mucosa. Values in patients with other diseases were 25% for blood and 14.7% for mucosa. Mean cytotoxicity at 4 hours did not exceed 6.4% for any group, and assays in autologous serum gave results similar to tests in calf serum. In additional studies, K 562 chronic leukemia cells were somewhat more sensitive to lysis than RPMI-4788 by blood mononuclear cells, but there was no lysis of K 562 by mucosal populations that were cytotoxic for RPMI-4788. There was no competitive inhibition by either target cell for the other. It was concluded that 75Se RPMI-4788 colon cancer cells are suitable targets for evaluating in vitro cytotoxicity by intestinal mucosal cells and that mucosal cytotoxicity in patients with colon cancer is depressed compared to cytotoxicity by peripheral blood effectors.
Author List
Beeken WL, Gundel RM, St Andre-Ukena S, McAuliffe TAuthor
Timothy L. McAuliffe PhD Professor in the Psychiatry and Behavioral Medicine department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdolescentAdult
Aged
Cell Line
Colonic Neoplasms
Crohn Disease
Cytotoxicity, Immunologic
Female
Humans
In Vitro Techniques
Intestinal Mucosa
Lymphocytes
Male
Middle Aged
Monocytes