期刊
EUROPEAN JOURNAL OF PHARMACOLOGY
卷 609, 期 1-3, 页码 27-33出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ejphar.2009.03.002
关键词
Acetylcholine; Acetylcholine esterase; Alpha7; Choline acetyltransferase; HT-29 human colon cancer cell line; Nicotinic receptor
资金
- Anna-Lisa and Bror Bjornsson Foundation
- Assar Gabrielsson Foundation
- Goteborg Medical Society
- King Gustaf V jubilee Clinic Foundation
- LUA-ALF agreement
- University of Kalmar
- Vastra Gotalandregionen
We used immunochemistry to demonstrate expression of acetylcholine's nicotinic alpha 7-receptor subtype in human colon cancer cell line HT-29. Moreover, RT-PCR and immunochemistry showed that choline acetyltransferase and acetylcholine esterase, the enzymes responsible for acetylcholine synthesis and degradation, respectively, localise in HT-29 cells. Bromoacetylcholine bromide, an inhibitor of choline acetyltransferase, significantly attenuated basal cell growth. Our findings suggest that acetylcholine might serve as an autocrine/paracrine-or speculatively, even intracrine-signalling molecule in cell line HT-29, thus contributing to carcinogenesis/cancer progression. (C) 2009 Elsevier BY. All rights reserved.
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