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de Sousa Coelho MDPS, Pereira IC, de Oliveira KGF, Oliveira IKF, Dos Santos Rizzo M, de Oliveira VA, Carneiro da Silva FC, Torres-Leal FL, de Castro E Sousa JM. Chemopreventive and anti-tumor potential of vitamin E in preclinical breast cancer studies: A systematic review. Clin Nutr ESPEN 2023; 53:60-73. [PMID: 36657931 DOI: 10.1016/j.clnesp.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 10/17/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Vitamin E has been investigated for its antitumor potential, including the ability to change cancer gene pathways as well as promote antioxidant and pro-oxidant activity. OBJECTIVE Therefore, this systematic review aimed to evaluate antitumor and chemopreventive activity of different vitamin E isoforms (tocopherols and tocotrienols) through in vitro and in vivo studies. METHOD The systematic review was registered in PROSPERO (No. CRD4202126207) and the search was carried out in four electronic databases (PubMed, Science Direct, Scopus and Web of Science) in June 2021 by three independent reviewers. The search equation used was: "Supplementation" AND ("Vitamin E" OR Tocopherol OR Tocotrienol) AND "breast cancer" AND (chemotherapy OR therapy OR prevention). In vitro studies and animal models of breast cancer supplemented with tocopherol or tocotrienol vitamers, alone or in combination, were included. RESULTS The results revealed 8546 relevant studies that were initially identified in our search. After analysis, a total of 12 studies were eligible for this systematic review. All studies included animal models, and 5 of them also performed in vitro experiments on cancer cell lines. The studies performed supplementation with tocopherols, mixtures (tocopherols and tocotrienols) and synthetic vitamin E forms. There was an significant association of estradiol, dendritic cells and pterostilbene in combined therapy with vitamin E. Vitamin E delayed tumor development, reduced tumor size, proliferation, viability, expression of anti-apoptotic and cell proliferation genes, and upregulated pro-apoptotic genes, tumor suppressor genes and increased immune response. The effects on oxidative stress markers and antioxidant activity were conflicting among studies. Only one study with synthetic vitamin E reported cardiotoxicity, but it did not show vitamin E genotoxicity. CONCLUSION In conclusion, vitamin E isoforms, isolated or associated, showed antitumor and chemopreventive activity. However, due to studies heterogeneity, there is a need for further analysis to establish dose, form, supplementation time and breast cancer stage.
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Affiliation(s)
- Maria do Perpetuo Socorro de Sousa Coelho
- Laboratory of Genetical Toxicology (LAPGENIC), Center for Health Sciences, Graduate Program in Pharmaceutical Sciences - Pharmaceutical Sciences, Federal University of Piauí, Teresina, Piauí, Brazil
| | - Irislene Costa Pereira
- Metabolic Diseases, Exercise and Nutrition Research Group (DOMEN), Department of Biophysics and Physiology, Center for Health Sciences, Federal University of Piaui, Teresina, Piauí, Brazil
| | - Kynnara Gabriella Feitosa de Oliveira
- Metabolic Diseases, Exercise and Nutrition Research Group (DOMEN), Department of Biophysics and Physiology, Center for Health Sciences, Federal University of Piaui, Teresina, Piauí, Brazil
| | - Iara Katryne Fonseca Oliveira
- Department of Nutrition, Postgraduate Program in Food and Nutrition - PPGAN, Federal University of Piauí, Teresina, Piauí, Brazil
| | - Márcia Dos Santos Rizzo
- Department of Morphology, Health Sciences Center, Federal University of Piaui, Teresina, Piauí, Brazil
| | - Victor Alves de Oliveira
- Department of Nutrition, Postgraduate Program in Food and Nutrition - PPGAN, Federal University of Piauí, Teresina, Piauí, Brazil
| | | | - Francisco Leonardo Torres-Leal
- Metabolic Diseases, Exercise and Nutrition Research Group (DOMEN), Department of Biophysics and Physiology, Center for Health Sciences, Federal University of Piaui, Teresina, Piauí, Brazil
| | - João Marcelo de Castro E Sousa
- Laboratory of Genetical Toxicology (LAPGENIC), Center for Health Sciences, Graduate Program in Pharmaceutical Sciences - Pharmaceutical Sciences, Federal University of Piauí, Teresina, Piauí, Brazil.
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Cianci R, Franza L. Genomic Medicine and Advances in Vaccine Technology and Development in the Developing and Developed World. Vaccines (Basel) 2020; 9:vaccines9010009. [PMID: 33374343 PMCID: PMC7823288 DOI: 10.3390/vaccines9010009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 12/01/2020] [Indexed: 12/20/2022] Open
Affiliation(s)
- Rossella Cianci
- Internal Medicine, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Roma, Italy
- Correspondence: ; Tel.: +39-06-3015-7597; Fax: +39-06-3550-2775
| | - Laura Franza
- Emergency Medicine, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Roma, Italy;
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