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Nava-Tapia DA, Román-Justo NY, Cuenca-Rojo A, Guerrero-Rivera LG, Patrón-Guerrero A, Poblete-Cruz RI, Zacapala-Gómez AE, Sotelo-Leyva C, Navarro-Tito N, Mendoza-Catalán MA. Exploring the potential of tocopherols: mechanisms of action and perspectives in the prevention and treatment of breast cancer. Med Oncol 2024; 41:208. [PMID: 39060448 DOI: 10.1007/s12032-024-02454-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024]
Abstract
Currently, breast cancer is the most common cause of mortality caused by neoplasia in women worldwide. The unmet challenges of conventional cancer therapy are chemoresistance and lack of selectivity, which can lead to serious side effects in patients; therefore, new treatments based on natural compounds that serve as adjuvants in breast cancer therapy are urgently needed. Tocopherols are naturally occurring antioxidant compounds that have shown antitumor activity against several types of cancer, including breast cancer. This review summarizes the antitumoral activity of tocopherols, such as the antiproliferative, apoptotic, anti-invasive, and antioxidant effects of tocopherols, through different molecular mechanisms. According to the studies described, α-T, δ-T and γ-T are the most studied in breast tumor cells; however, α-T and γ-T show a more critical antitumor activity and significant potential as a complements to chemotherapeutic drugs against breast cancer, enhancing toxicity against tumor cells and preventing cytotoxicity in nontumor cells. However, the possible relationship between tocopherol intake, related to concentration, and the promotion of cancer in particular cases should not be ruled out, so additional studies are required to determine the correct dose to obtain the desired antitumor effect. Moreover, nanomicelles of D-α-tocopherol have promising potential as pharmaceutical excipients for drug delivery to improve the cytotoxicity and selectivity of first-line chemotherapeutics against breast cancer.
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Affiliation(s)
- Dania A Nava-Tapia
- Facultad de Ciencias Químico Biológicas, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N., 39090, Chilpancingo, Guerrero, Mexico
| | - Norely Y Román-Justo
- Facultad de Ciencias Químico Biológicas, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N., 39090, Chilpancingo, Guerrero, Mexico
| | - Antonio Cuenca-Rojo
- Facultad de Ciencias Químico Biológicas, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N., 39090, Chilpancingo, Guerrero, Mexico
| | - Lizeth G Guerrero-Rivera
- Facultad de Ciencias Químico Biológicas, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N., 39090, Chilpancingo, Guerrero, Mexico
| | - Annet Patrón-Guerrero
- Facultad de Ciencias Químico Biológicas, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N., 39090, Chilpancingo, Guerrero, Mexico
| | - Ruth I Poblete-Cruz
- Facultad de Ciencias Químico Biológicas, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N., 39090, Chilpancingo, Guerrero, Mexico
| | - Ana E Zacapala-Gómez
- Facultad de Ciencias Químico Biológicas, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N., 39090, Chilpancingo, Guerrero, Mexico
| | - César Sotelo-Leyva
- Facultad de Ciencias Químico Biológicas, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N., 39090, Chilpancingo, Guerrero, Mexico
| | - Napoleón Navarro-Tito
- Facultad de Ciencias Químico Biológicas, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N., 39090, Chilpancingo, Guerrero, Mexico.
| | - Miguel A Mendoza-Catalán
- Facultad de Ciencias Químico Biológicas, Autonomous University of Guerrero, Av. Lázaro Cárdenas S/N., 39090, Chilpancingo, Guerrero, Mexico.
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Li J, Xiang N, Chen J, Shu Z, Chen L, Guo X. Vitamin E and carotenoid accumulation during kernel development in two varieties of
Castanea henryi. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.15305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Jiaqi Li
- School of Food Science and Engineering Ministry of Education Engineering Research Centre of Starch & Protein Processing Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety South China University of Technology Guangzhou 510640 China
| | - Nan Xiang
- School of Food Science and Engineering Ministry of Education Engineering Research Centre of Starch & Protein Processing Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety South China University of Technology Guangzhou 510640 China
| | - Jiayu Chen
- Xingxi Agro‐tech Extrension and Service Station Zhenghe 353600 China
| | - Zhicheng Shu
- Hangzhou Wahaha Group Co., Ltd. Hangzhou 310009 China
| | - Ling Chen
- School of Food Science and Engineering Ministry of Education Engineering Research Centre of Starch & Protein Processing Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety South China University of Technology Guangzhou 510640 China
| | - Xinbo Guo
- School of Food Science and Engineering Ministry of Education Engineering Research Centre of Starch & Protein Processing Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety South China University of Technology Guangzhou 510640 China
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Yüksek V, Çetin S, Usta A. The effect of vitamin E and selenium combination in repairing fluoride-induced DNA damage to NRK-52E cells. Mol Biol Rep 2020; 47:7761-7770. [PMID: 33025505 DOI: 10.1007/s11033-020-05852-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 09/19/2020] [Indexed: 01/11/2023]
Abstract
Prolonged and excessive fluoride exposure can lead to fluorosis. The kidney is one of the organs that are injured mostly due to fluoride-induced damage. Fluoride can induce DNA damage at cytotoxic concentrations. This study aims to determine the extent of NaF-induced DNA damage and to investigate the effect of vitamin E and selenium combination (ES) in preventing and repairing this damage. For this purpose, we administered different combinations of NaF and ES to NRK-52E cells and determined the effective concentrations of ES and the NaF IC50 values associated with different incubation times (3, 12, and 24 h) by using the MTT assay. The determined quantities of NaF IC50 in association with time and the NaF IC50 + ES combination were administered to the cells. The extent of DNA damage was determined with the comet assay and the expression levels of the Ku70/80 and PARP-1 genes were determined with the RT-qPCR method. DNA damage significantly increased in all experimental groups compared to the control group (p < 0.05). It was found out that the NaF and ES combination statistically reduced the DNA damage compared to the damage observed in the NaF-treated groups (p < 0.05). Treatment of the ES combination significantly increased the expressions of Ku70 and Ku80 genes involved in DNA repair (p < 0.05). We concluded that vitamin E and selenium can potentially be effective in the repair of fluoride-induced DNA damage based on the results of this in vitro study. Our results may shed light on the prevention of DNA damage associated with fluorosis.
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Affiliation(s)
- Veysel Yüksek
- Department of Medical Laboratory, Özalp Vocational High SchoolVan Yuzuncu Yil University, Van, Turkey.
| | - Sedat Çetin
- Department of Biochemistry, Faculty of Veterinary Medicine, Van Yuzuncu Yil University, Van, Turkey
| | - Ayşe Usta
- Department of Chemistry, Faculty of Science, Van Yuzuncu Yil University, Van, Turkey
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Oláh G, Módis K, Gero D, Suzuki K, Dewitt D, Traber DL, Szabó C. Cytoprotective effect of γ-tocopherol against tumor necrosis factor α induced cell dysfunction in L929 cells. Int J Mol Med 2011; 28:711-20. [PMID: 21822532 DOI: 10.3892/ijmm.2011.765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Accepted: 06/23/2011] [Indexed: 01/02/2023] Open
Abstract
The antioxidant vitamin γ-tocopherol exerts protective and anti-inflammatory effects in various models of critical illness. The combination of actinomycin D and tumor necrosis factor α (TNFα) in the immortalized fibroblast cell line L929 is a well-established method to model pro-inflammatory cytotoxicity in cultured cells in vitro. The present study had two aims. First, we wished to characterize the contribution of reactive oxygen species (ROS) to the cell dysfunction and this commonly used model system of cell death. Second, we wished to investigate the effects of γ-tocopherol on this response. Cells were exposed to actinomycin D (0.5 µg/ml) + TNFα (100 pg/ml) in the absence or presence of 1 h of γ-tocopherol pre-treatment. The earliest change that was detected in our system in response to TNFα was an increase in mitochondrial oxidant production, already apparent at 45 min. Changes in glycolysis and oxidative phosphorylation parameters were already apparent at 2 h, as detected by the Seahorse Biosciences XF24 Flux Analyzer. By 6 h, a slight decrease in Cell Index was detected by impedance-based analysis, employing an electronic sensor array system (XCelligence). At the same time, a slight decrease in cell viability was detected by the 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) method, along with a significant increase in lactate dehydrogenase (LDH) release into the culture medium, and a detectable degree of mitochondrial membrane depolarization. Between 12 and 24 h, the cell viability (already at a low level) further declined, which coincided with a secondary, marked decline in the mitochondrial membrane potential. Pre-treatment of the cells with γ-tocopherol (10-300 µM) provided a significant protection against all of the functional alterations induced by actinomycin D and TNFα. The current study provides direct evidence that reactive oxidant formation plays an important role in the current experimental model of cell dysfunction, and demonstrates the protective effects of the potent endogenous antioxidant vitamin, γ-tocopherol. The mechanisms described in the current study may, in part, contribute to the protective effects of γ-tocopherol in various models of critical illness.
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Affiliation(s)
- Gabor Oláh
- Department of Anesthesiology, The University of Texas Medical Branch, Galveston, TX TX 77555-1102, USA
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