Antineoplastic effect of pectic polysaccharides from green sweet pepper (Capsicum annuum) on mammary tumor cells in vivo and in vitro.

Abstract

The present study investigated the antineoplastic effects of pectic polysaccharides that were extracted from green sweet pepper (Capsicum annuum [CAP]) in the Ehrlich carcinoma in mice and in human mammary tumor lineages. After the subcutaneous inoculation of 2 × 106 Ehrlich tumor cells, Female Swiss mice received 50, 100, or 150 mg/kg CAP or vehicle orally once daily or methotrexate (2.5 mg/kg, i.p., every 5 days) for 21 days. CAP dose-dependently reduced Ehrlich tumor growth. It also reduced the viability of MCF-7, MDA-MB-231, and MDA-MB-436 human mammary cell lineages. Treatment with CAP reduced the gene expression of vascular endothelial growth factor in vivo and in vitro, reduced vessel areas of the tumors, and induced necrosis in Ehrlich solid tumors. CAP treatment significantly increased Interleukin-6 in tumors. The antineoplastic effect of CAP appears to depend on the regulation of inflammation and angiogenesis. Further studies are encouraged to better understand the CAP potential for the treatment of breast tumors.

• Authors: Eliana Rezende Adami, Claudia Rita Corso, Natalia Mulinari Turin-Oliveira, Claudia Martins Galindo, Letícia Milani, Maria Caroline Stipp, Georgia Erdmann do Nascimento, Andressa Chequin, Luisa Mota da Silva, Sérgio Faloni de Andrade, Rosangela Locatelli Dittrich, José Ederaldo Queiroz-Telles, Giseli Klassen, Edneia A S Ramos, Lucimara M C Cordeiro, Alexandra Acco
• Journal: Carbohydrate polymers (Carbohydr Polym) Vol. 201 Pg. 280-292 (Dec 01 2018) ISSN: 1879-1344 [Electronic] England
• PMID: 30241820 (Publication Type: Journal Article)
• Copyright: Copyright © 2018 Elsevier Ltd. All rights reserved.

Chemical References

• Antineoplastic Agents, Phytogenic
• Pectins

Topics

• Animals
• Antineoplastic Agents, Phytogenic (chemistry, isolation & purification, pharmacology)
• Breast Neoplasms (drug therapy, metabolism, pathology)
• Capsicum (chemistry)
• Carcinoma, Ehrlich Tumor (drug therapy, metabolism, pathology)
• Drug Screening Assays, Antitumor
• Female
• Humans
• MCF-7 Cells
• Mammary Neoplasms, Experimental (drug therapy, metabolism)
• Mice
• Pectins (chemistry, isolation & purification, pharmacology)