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Quercetin Regresses Dalton's Lymphoma Growth via Suppression of PI3K/AKT Signaling Leading to Upregulation of p53 and Decrease in Energy Metabolism

Quercetin Regresses Dalton's Lymphoma Growth via Suppression of PI3K/AKT Signaling Leading... Various oncogenes are associated with deregulation in cell proliferation, apoptosis, and cell survival, which ultimately cause cancerous growth. Phosphatidylinositol 3-kinase (PI3K) mediated signaling plays a key role in malignant transformation. Cell proliferation and cell survival of tumor cell are induced by hyper activation of PI3K, AKT1, glycolytic enzyme LDH-A, and inactivation of tumor suppressor gene p53. Dietary flavonoids such as quercetin are considered a powerful modulator of different cellular signaling pathways. The present study is focused on the role of quercetin on regulation of PI3K/AKT pathways in Dalton's lymphoma mice. Effect of quercetin was analyzed in ascite cells in terms of cell viability, glycolytic metabolism as well as expression, and level of PI3K (regulatory and catalytic subunit), AKT1, and p53 using standard methods. Results reflect hyperactivation of PI3K signaling in ascite cells of Dalton's lymphoma mice, leading to activation of AKT1 and inactivation of p53. Quercetin modulates the pathway toward suppression of lymphoma. Glycolytic metabolism was also downregulated by quercetin. Its tumor suppressor activity was confirmed by morphological parameters and longevity of mice. The findings suggest that quercetin may contribute to lymphoma prevention by downregulating PI3K–AKT1–p53 pathway as well as by glycolytic metabolism. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nutrition and Cancer Taylor & Francis

Quercetin Regresses Dalton's Lymphoma Growth via Suppression of PI3K/AKT Signaling Leading to Upregulation of p53 and Decrease in Energy Metabolism

Nutrition and Cancer , Volume 67 (2): 10 – Feb 17, 2015
10 pages

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References (52)

Publisher
Taylor & Francis
Copyright
Copyright © 2015, Taylor & Francis Group, LLC
ISSN
1532-7914
eISSN
0163-5581
DOI
10.1080/01635581.2015.990574
pmid
25658812
Publisher site
See Article on Publisher Site

Abstract

Various oncogenes are associated with deregulation in cell proliferation, apoptosis, and cell survival, which ultimately cause cancerous growth. Phosphatidylinositol 3-kinase (PI3K) mediated signaling plays a key role in malignant transformation. Cell proliferation and cell survival of tumor cell are induced by hyper activation of PI3K, AKT1, glycolytic enzyme LDH-A, and inactivation of tumor suppressor gene p53. Dietary flavonoids such as quercetin are considered a powerful modulator of different cellular signaling pathways. The present study is focused on the role of quercetin on regulation of PI3K/AKT pathways in Dalton's lymphoma mice. Effect of quercetin was analyzed in ascite cells in terms of cell viability, glycolytic metabolism as well as expression, and level of PI3K (regulatory and catalytic subunit), AKT1, and p53 using standard methods. Results reflect hyperactivation of PI3K signaling in ascite cells of Dalton's lymphoma mice, leading to activation of AKT1 and inactivation of p53. Quercetin modulates the pathway toward suppression of lymphoma. Glycolytic metabolism was also downregulated by quercetin. Its tumor suppressor activity was confirmed by morphological parameters and longevity of mice. The findings suggest that quercetin may contribute to lymphoma prevention by downregulating PI3K–AKT1–p53 pathway as well as by glycolytic metabolism.

Journal

Nutrition and CancerTaylor & Francis

Published: Feb 17, 2015

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