期刊
JOURNAL OF SURGICAL RESEARCH
卷 185, 期 1, 页码 212-216出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jss.2013.05.089
关键词
Leflunomide (LFN); Medullary thyroid cancer (MTC); Neuroendocrine tumors
类别
资金
- NIH [R01 CA 12115]
- American Cancer Society
- Ministry of Higher Education of Saudi Arabia
- KFSH&RC, Riyadh, Saudi Arabia
Background: Medullary thyroid cancer (MTC) is a neuroendocrine tumor that arises from the calcitonin-secreting parafollicular cells of the thyroid gland. Leflunomide (LFN) is a disease-modifying antirheumatic drug approved for the treatment of rheumatoid arthritis, and its active metabolite teriflunomide has been identified as a potential anticancer drug. In this study we investigated the ability of LFN to similarly act as an anticancer drug by examining the effects of LFN treatment on MTC cells. Methods: Human MTC-TT cells were treated with LFN (25-150 mu mol/L) and Western blotting was performed to measure levels of neuroendocrine markers. MTT assays were used to assess the effect of LFN treatment on cellular proliferation. Results: LFN treatment downregulated neuroendocrine markers ASCL1 and chromogranin A. Importantly, LFN significantly inhibited the growth of MTC cells in a dose-dependent manner. Conclusions: Treatment with LFN decreased neuroendocrine tumor marker expression and reduced the cell proliferation in MTC cells. As the safety of LFN in human beings is well established, a clinical trial using this drug to treat patients with advanced MTC may be warranted. (C) 2013 Elsevier Inc. All rights reserved.
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