Abstract Title:

Cyclopamine and quercetin suppress the growth of leukemia and lymphoma cells.

Abstract Source:

Ultrasound Obstet Gynecol. 2010 Feb;35(2):223-7. PMID: 20032413

Abstract Author(s):

Tatsuo Kawahara, Noriko Kawaguchi-Ihara, Yuki Okuhashi, Mai Itoh, Nobuo Nara, Shuji Tohda

Article Affiliation:

Department of Laboratory Medicine, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo 113-8519, Japan.


BACKGROUND: Hedgehog (Hh) and Wnt signaling pathways are involved in the stimulation of growth of leukemia and lymphoma cells. In the present study, whether or not the Hh inhibitor, cyclopamine, and the Wnt inhibitor, quercetin, suppress cell growth was investigated. MATERIALS AND METHODS: The effects of cyclopamine and quercetin on the in vitro growth and protein expression of ten acute leukemia and B-cell lymphoma cell lines were examined. RESULTS: Cyclopamine and quercetin suppressed cell growth and induced apoptosis in seven and eight cell lines respectively. Cyclopamine decreased the level of Gli1 protein, a target gene product of Hh signaling. Quercetin decreased the level of Notch1 protein and its active fragment in the DND-41 T-lymphoblastic leukemia cell line with constitutive Notch activation. CONCLUSION: Cyclopamine and quercetin suppress the growth of a number of leukemia and lymphoma cells. This finding suggests the potential use of these compounds in molecularly-targeted therapy for leukemia and lymphoma.

Study Type : In Vitro Study

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Sayer Ji
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