Lithium inhibits carcinoid cell growth in vitro

American Journal of Translational Research

David Yu Greenblatt¹  Mary Ndiaye¹  Muthusamy Kunnimalaiyaan¹  Herbert Chen¹ 

关键词: Carcinoid tumors;    neuroendocrine tumors;    H727 cells;    BON cells;    lithium chloride;    chromogranin A;    Achaete-Scute Complex-Like 1;    serotonin;   

DOI  :  

学科分类：医学（综合）

来源: e-Century Publishing Corporation

【 摘 要 】

Carcinoids are slow growing neuroendocrine tumors that often cause debilitating symptoms due to excessive secretion of hormones such as serotonin. Surgery is the only potentially curative treatment, but many patients have unresectable metastatic disease. Lithium is a non- competitive inhibitor of GSK-3 with an established safety profile. The objective of this study was to investigate the effects of lithium on carcinoid cell growth in vitro. Lithium treatment caused a dose-dependent reduction in carcinoid cancer cell (BON and H727) growth. Western blot analysis revealed increased expression of cleaved poly (ADP-ribose) polymerase (PARP), indicating the induction of apoptosis. Lithium treatment also suppressed cellular levels of serotonin and chromogranin A. In summary, lithium inactivates GSK-3, induces apoptosis, and suppresses carcinoid cancer cell growth in vitro. The drug has been used clinically since the 19^th century to treat a variety of diseases including bipolar disorder, and its safety profile is well documented. Therefore, based on these findings, we have undertaken a clinical trial of lithium chloride in the treatment of patients with unresectable carcinoid cancer.

【 授权许可】

Unknown