{"title":"Effects of Chitosan Nanoparticles with Long Synthetic siRNAs Targeting VEGF in Triple-Negative Breast Cancer Cells","authors":"Birnur Cömez, J. Akbuğa","doi":"10.1590/s2175-97902023e22304","DOIUrl":null,"url":null,"abstract":"Vascular endothelial growth factor (VEGF) is an essential angiogenic factor in breast cancer development and metastasis. Small interfering RNAs (siRNAs) can specifically silence genes via the RNA interference pathway, therefore were investigated as cancer therapeutics. In this study, we investigated the effects of siRNAs longer than 30 base pairs (bp) loaded into chitosan nanoparticles in triple-negative breast cancer cells, compared with conventional siRNAs. 35 bp long synthetic siRNAs inhibited VEGF gene expression by 51.2% and increased apoptosis level by 1.75-fold in MDA-MB-231 cell lines. Furthermore, blank and siRNA-loaded chitosan nanoparticles induced expression of IFN-γ in breast cancer cells. These results suggest that long synthetic siRNAs can be as effective as conventional siRNAs, when introduced into cells with chitosan nanoparticles.","PeriodicalId":9218,"journal":{"name":"Brazilian Journal of Pharmaceutical Sciences","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brazilian Journal of Pharmaceutical Sciences","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1590/s2175-97902023e22304","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHARMACOLOGY & PHARMACY","Score":null,"Total":0}
引用次数: 0
Abstract
Vascular endothelial growth factor (VEGF) is an essential angiogenic factor in breast cancer development and metastasis. Small interfering RNAs (siRNAs) can specifically silence genes via the RNA interference pathway, therefore were investigated as cancer therapeutics. In this study, we investigated the effects of siRNAs longer than 30 base pairs (bp) loaded into chitosan nanoparticles in triple-negative breast cancer cells, compared with conventional siRNAs. 35 bp long synthetic siRNAs inhibited VEGF gene expression by 51.2% and increased apoptosis level by 1.75-fold in MDA-MB-231 cell lines. Furthermore, blank and siRNA-loaded chitosan nanoparticles induced expression of IFN-γ in breast cancer cells. These results suggest that long synthetic siRNAs can be as effective as conventional siRNAs, when introduced into cells with chitosan nanoparticles.
期刊介绍：
The Brazilian Journal of Pharmaceutical Sciences accepts for publication Original Papers applicable to the fields of Pharmaceutical Sciences; Reviews and Current Comment Articles, which are published under the Scientific Editor and Associate Editors invitation to recognized experts or when they are spontaneously submitted by the authors in the form of abstracts to have their importance evaluated. A critical view of the subject with insertions of results of previous works in the field in relation to the state of art must be included; Short Communications reporting new methods and previews of works on researches of outstanding importance in which originality justify a quick publication. A maximum of 2000 words excluding tables, figures and references is an acceptable limit. One table, one figure and ten references may be added, and Book Reviews of the latest editions of books, prepared by specialists invited by the Scientific Editor and Associate Editors. Thematic Supplements as well as those related to scientific meetings can be published under the Scientific Editor and/or Associate Editors agreement.
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