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Plos One : Olean-12-eno2,3-c 1,2,5Oxadiazol-28-oic Acid Oeoa Induces G1 Cell Cycle Arrest and Differentiation in Human Leukemia Cell Lines, Volume 8

By Nie, Daotai

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Book Id: WPLBN0003964137
Format Type: PDF eBook :
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Reproduction Date: 2015

Title: Plos One : Olean-12-eno2,3-c 1,2,5Oxadiazol-28-oic Acid Oeoa Induces G1 Cell Cycle Arrest and Differentiation in Human Leukemia Cell Lines, Volume 8  
Author: Nie, Daotai
Volume: Volume 8
Language: English
Subject: Journals, Science, Medical Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary)
Historic
Publication Date:
Publisher: Plos

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Nie, D. (n.d.). Plos One : Olean-12-eno2,3-c 1,2,5Oxadiazol-28-oic Acid Oeoa Induces G1 Cell Cycle Arrest and Differentiation in Human Leukemia Cell Lines, Volume 8. Retrieved from http://community.worldlibrary.net/


Description
Description : Oleanolic acid (3b-hydroxy-olea-12-en-28-oic acid) is a natural pentacyclic triterpenoic acid found in many fruits, herbs and medicinal plants. In the past decade, increasing evidence has suggested that oleanolic acid exhibits inhibitory activities against different types of cancer including skin cancer and colon cancer, but not leukemia. We report here that a derivative of oleanolic acid, olean-12-eno[2,3-c] [1,2,5]oxadiazol-28-oic acid (designated OEOA) effectively blocks the proliferation of human leukemia cells. OEOA significantly reduces cell proliferation without inducing cell death in three types of leukemia cell lines, including K562, HEL and Jurket. Moreover, exposure of K562 cells to OEOA results in G1 cell cycle arrest, with a concomitant induction of cyclin-dependent kinase inhibitor p27 and downregulation of cyclins and Cdks that are essential for cell cycle progression. Interestingly, OEOA also enhances erythroid differentiation in K562 cells through suppressing the expression of Bcr-Abl and phosphorylation of Erk1/2. These findings identify a novel chemical entity for further development as therapeutics against leukemia.

 

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