Effect of cholecystokinin on human cholangiocarcinoma xenografted into nude mice

C. Hudd, David M Euhus, M. C. LaRegina, D. R. Herbold, D. C. Palmer, F. E. Johnson

Research output: Contribution to journalArticle

Abstract

Gastrointestinal polypeptide hormones regulate growth of various normal gastrointestinal tissues as well as certain visceral cancers. Since cholecystokinin (CCK) promotes growth of normal biliary tract, we sought to determine whether CCK affects the growth and metabolism of human cholangiocarcinoma line SLU 132. Twenty-six nude mice with s.c xenografts of this cancer received either CCK octapeptide (50 μg/kg/dose) or 0.9% NaCl solution (saline) twice a day i.p. for 14 days. Tumor volume was calculated from Vernier caliper measurements. At sacrifice on Day 15, tumors were excised, weighed, and examined histologically. DNA, RNA, and protein were measured in the xenografted carcinomas. Because this cholangiocarcinoma produces carcinoembryonic antigen (CEA), we obtained serum at sacrifice for CEA radioimmunoassay and also tumor tissue for CEA immunolabeling with murine anti-CEA monoclonal antibody. Serum CEA levels were 90% higher in the CCK-treated group. Tumor tissue in the CCK-treated group also contained more CEA than did the controls. Mean tumor volume increased significantly in the saline group during the 14-day treatment period, whereas mean tumor volume did not increase significantly in the CCK group. Exogenous high-dose CCK thus appears to increase production and release of CEA from SLU-132; it also appears to retard growth of this tumor line in the nude mouse.

Original languageEnglish (US)
Pages (from-to)1372-1377
Number of pages6
JournalCancer Research
Volume45
Issue number3
StatePublished - 1985
Externally publishedYes

Fingerprint

Cholangiocarcinoma
Carcinoembryonic Antigen
Cholecystokinin
Nude Mice
Tumor Burden
Neoplasms
Growth
Gastrointestinal Hormones
Sincalide
Peptide Hormones
Biliary Tract
Serum
Heterografts
Sodium Chloride
Radioimmunoassay
Monoclonal Antibodies
RNA
Carcinoma
DNA

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Hudd, C., Euhus, D. M., LaRegina, M. C., Herbold, D. R., Palmer, D. C., & Johnson, F. E. (1985). Effect of cholecystokinin on human cholangiocarcinoma xenografted into nude mice. Cancer Research, 45(3), 1372-1377.

Effect of cholecystokinin on human cholangiocarcinoma xenografted into nude mice. / Hudd, C.; Euhus, David M; LaRegina, M. C.; Herbold, D. R.; Palmer, D. C.; Johnson, F. E.

In: Cancer Research, Vol. 45, No. 3, 1985, p. 1372-1377.

Research output: Contribution to journalArticle

Hudd, C, Euhus, DM, LaRegina, MC, Herbold, DR, Palmer, DC & Johnson, FE 1985, 'Effect of cholecystokinin on human cholangiocarcinoma xenografted into nude mice', Cancer Research, vol. 45, no. 3, pp. 1372-1377.
Hudd C, Euhus DM, LaRegina MC, Herbold DR, Palmer DC, Johnson FE. Effect of cholecystokinin on human cholangiocarcinoma xenografted into nude mice. Cancer Research. 1985;45(3):1372-1377.
Hudd, C. ; Euhus, David M ; LaRegina, M. C. ; Herbold, D. R. ; Palmer, D. C. ; Johnson, F. E. / Effect of cholecystokinin on human cholangiocarcinoma xenografted into nude mice. In: Cancer Research. 1985 ; Vol. 45, No. 3. pp. 1372-1377.
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