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Swaminathan H, Saravanamurali K, Yadav SA. Extensive review on breast cancer its etiology, progression, prognostic markers, and treatment. Med Oncol 2023; 40:238. [PMID: 37442848 DOI: 10.1007/s12032-023-02111-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023]
Abstract
As the most frequent and vulnerable malignancy among women, breast cancer universally manifests a formidable healthcare challenge. From a biological and molecular perspective, it is a heterogenous disease and is stratified based on the etiological factors driving breast carcinogenesis. Notably, genetic predispositions and epigenetic impacts often constitute the heterogeneity of this disease. Typically, breast cancer is classified intrinsically into histological subtypes in clinical landscapes. These stratifications empower physicians to tailor precise treatments among the spectrum of breast cancer therapeutics. In this pursuit, numerous prognostic algorithms are extensively characterized, drastically changing how breast cancer is portrayed. Therefore, it is a basic requisite to comprehend the multidisciplinary rationales of breast cancer to assist the evolution of novel therapeutic strategies. This review aims at highlighting the molecular and genetic grounds of cancer additionally with therapeutic and phytotherapeutic context. Substantially, it also renders researchers with an insight into the breast cancer cell lines as a model paradigm for breast cancer research interventions.
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Affiliation(s)
- Harshini Swaminathan
- Department of Biotechnology, Karpagam Academy of Higher Education, Coimbatore, 641021, Tamil Nadu, India
| | - K Saravanamurali
- Virus Research and Diagnostics Laboratory, Department of Microbiology, Coimbatore Medical College, Coimbatore, India
| | - Sangilimuthu Alagar Yadav
- Department of Biotechnology, Karpagam Academy of Higher Education, Coimbatore, 641021, Tamil Nadu, India.
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2
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Mohany M, Al-zharani M, Nasr FA, El-Wetidy MS, Farag M, Abdel-Mageed WM, El-Gamal A, Al-Rejaie SS, Noman OM, Qurtam AA, Rudayni HA, Aleissa MS. Persicaline, an alkaloid from Salvadora persica, inhibits proliferation and induces apoptosis and cell-cycle arrest in MCF-7 cells. OPEN CHEM 2023. [DOI: 10.1515/chem-2022-0302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
Abstract
Abstract
Cancer is the second largest cause of mortality worldwide. Many natural bioactive chemicals generated from plants have favorable impacts on health, including cancer chemoprevention, compared to their manufactured counterparts. Persicaline, a novel sulfur-containing imidazoline alkaloid derived from Salvadora persica, has been shown to display promising antioxidant activity. In this study, the antiproliferative activity of persicaline was tested against different cancer cells using (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide assay. The cell death mode and cell-cycle arrest were examined using flow cytometry analysis. In addition, the proapoptotic and molecular mechanism effects of persicaline against mammary MCF-7 cell line were explored. Furthermore, the impact of persicaline on apoptotic genes markers, generation of reactive oxygen species (ROS), and mitochondrial membrane potential were monitored. It was found that persicaline inhibits cell proliferation in a dose-dependent manner. Persicaline-treated MCF-7 cells also showed initiation of apoptotic events and G1 cell-cycle arrest. In addition, persicaline treatment led to an increase in ROS generation, Bax and caspase upregulation while the Bcl-2 was downregulated. Hence, for the first time, this study showed that persicaline causes G1 phase arrest and apoptosis induction in MCF-7 cells. Increased proapoptotic genes and ROS levels were required for the antiproliferative and apoptotic effects of persicaline.
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Affiliation(s)
- Mohamed Mohany
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University , P.O. Box 55760 , Riyadh – 1145 , Saudi Arabia
| | - Mohammed Al-zharani
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU) , Riyadh 11623 , Saudi Arabia
| | - Fahd A. Nasr
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Mohammad S. El-Wetidy
- College of Medicine, Research Center, King Saud University , P.O. Box 2925 , Riyadh 11451 , Saudi Arabia
| | - Mohamed Farag
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Wael M. Abdel-Mageed
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Ali El-Gamal
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Salim S. Al-Rejaie
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University , P.O. Box 55760 , Riyadh – 1145 , Saudi Arabia
| | - Omar M. Noman
- Department of Pharmacognosy, College of Pharmacy, King Saud University , P.O. Box 2457 , Riyadh 11451 , Saudi Arabia
| | - Ashraf Ahmed Qurtam
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU) , Riyadh 11623 , Saudi Arabia
| | - Hassan A. Rudayni
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU) , Riyadh 11623 , Saudi Arabia
| | - Mohammed S. Aleissa
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU) , Riyadh 11623 , Saudi Arabia
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3
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de Oliveira VA, Monteiro Fernandes ANR, Dos Santos Leal LM, Ferreira Lima PA, Silva Pereira AR, Pereira IC, Negreiros HA, Pereira-Freire JA, da Silva FCC, de Carvalho Melo Cavalcante AA, Torres-Leal FL, Azevedo AP, de Castro E Sousa JM. α-tocopherol as a selective modulator of toxicogenic damage induced by antineoplastic agents cyclophosphamide and doxorubicin. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2023; 86:87-102. [PMID: 36756732 DOI: 10.1080/15287394.2023.2168224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The aim of this study was to determine the oxidative/antioxidative effects, modulatory and selective potential of α-tocopherol (vitamin E) on antineoplastic drug-induced toxicogenetic damage. The toxicity, cytotoxicity and genotoxicity induced by antineoplastic agents cyclophosphamide (CPA) and doxorubicin (DOX) was examined utilizing as models Saccharomyces cerevisiae, Allium cepa, Artemia salina and human peripheral blood mononuclear cells (PBMCs) in the presence of α-tocopherol. For these tests, concentrations of α- tocopherol 100 IU/ml (67mg/ml), CPA 20 µg/ml, DOX 2 µg/ml were used. The selectivity of α-tocopherol was assessed by the MTT test using human mammary gland non-tumor (MCF10A) and tumor (MCF-7) cell lines. Data showed cytoplasmic and mitochondrial oxidative damage induced by CPA or DOX was significantly diminished by α-tocopherol in S. cerevisiae. In addition, the toxic effects on A. salina and cytotoxic and mutagenic effects on A. cepa were significantly reduced by α-tocopherol. In PBMCs, α-tocopherol alone did not markedly affect these cells, and when treated in conjunction with CPA or DOX, α-tocopherol reduced the toxicogenetic effects noted after antineoplastic drug administration as evidenced by decreased chromosomal alterations and lowered cell death rate. In human mammary gland non-tumor and tumor cell lines, α-tocopherol produced selective cytotoxicity with 2-fold higher effect in tumor cells. Evidence indicates that vitamin E (1) produced anti-cytotoxic and anti-mutagenic effects against CPA and DOX (2) increased higher selectivity toward tumor cells, and (3) presented chemoprotective activity in PBMCs.
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Affiliation(s)
- Victor Alves de Oliveira
- Department of Nutrition, Campus Senador Helvídio Nunes de Barros - CSHNB, Federal University of Piauí - UFPI, Picos, Brazil
| | | | - Lauana Maria Dos Santos Leal
- Laboratory of Research, Campus Senador Helvídio Nunes de Barros - CSHNB, Federal University of Piauí - UFPI, Picos, Brazil
| | - Paloma Alves Ferreira Lima
- Laboratory of Research, Campus Senador Helvídio Nunes de Barros - CSHNB, Federal University of Piauí - UFPI, Picos, Brazil
| | - Ana Rafaela Silva Pereira
- Laboratory of Research, Campus Senador Helvídio Nunes de Barros - CSHNB, Federal University of Piauí - UFPI, Picos, Brazil
| | - Irislene Costa Pereira
- Department of Biophysics and Physiology, Metabolic Diseases, Exercise and Nutrition Research Group (DOMEN) Center for Health Sciences, Federal University of Piaui, Teresina, Brazil
| | - Helber Alves Negreiros
- Laboratory of Research, Campus Senador Helvídio Nunes de Barros - CSHNB, Federal University of Piauí - UFPI, Picos, Brazil
| | - Joilane Alves Pereira-Freire
- Department of Nutrition, Campus Senador Helvídio Nunes de Barros - CSHNB, Federal University of Piauí - UFPI, Picos, Brazil
| | | | - Ana Amélia de Carvalho Melo Cavalcante
- Department of Biophysics and Physiology, Metabolic Diseases, Exercise and Nutrition Research Group (DOMEN) Center for Health Sciences, Federal University of Piaui, Teresina, Brazil
| | - Francisco Leonardo Torres-Leal
- Department of Biophysics and Physiology, Metabolic Diseases, Exercise and Nutrition Research Group (DOMEN) Center for Health Sciences, Federal University of Piaui, Teresina, Brazil
| | - Adriana Paiva Azevedo
- Post-graduate program of Food and Nutrition, Federal University of Piauí - UFPI, Picos, Brazil
| | - João Marcelo de Castro E Sousa
- Post-graduate program of Biotechnology (RENORBIO), Federal University of Piauí - UFPI, Picos, Brazil
- Department of Biochemistry and Pharmacology, Post-graduate program of Pharmaceutical sciences, Federal University of Piauí - UFPI, Picos, Brazil
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Véras JH, Do Vale CR, Luiz Cardoso Bailão EF, Dos Anjos MM, Cardoso CG, de Oliveira MG, de Paula JR, de Oliveira GR, Silva CRE, Chen-Chen L. Protective effects and DNA repair induction of a coumarin-chalcone hybrid against genotoxicity induced by mutagens. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2022; 85:937-951. [PMID: 36068785 DOI: 10.1080/15287394.2022.2120585] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Coumarins and chalcones are compounds widely found in plants or obtained by synthetic methods which possess several biological properties including antioxidant, anti-inflammatory, and antitumor effects. A series of coumarin-chalcone hybrids were synthesized to improve their biological actions and reduce potential adverse effects. Considering the applications of these molecules, a coumarin-chalcone hybrid [7-methoxy-3-(E)-3-(3,4,5-trimethoxyphenyl) acryloyl-2 H-chromen-2-one] (4-MET) was synthesized and the genotoxic, cytotoxic, and protective effects assessed against damage induced by different mutagens. First, in silico tools were used to predict biological activity of 4-MET which indicated a chemopreventive potential. Subsequently, the genotoxic/antigenotoxic activities of 4-MET were determined both in vitro (Ames test) and in vivo (micronucleus (MN) test and comet assay). In addition, molecular docking simulations were performed between 4-MET and glutathione reductase, an important cellular detoxifying enzyme. Our results indicated that 4-MET was not mutagenic in the Ames test; however, when co-treated with sodium azide or 4-nitroquinoline 1-oxide (4-NQO), 4-MET significantly reduced the harmful actions of these mutagens. Except for a cytotoxic effect after 120 hr treatment, 4-MET alone did not produce cytotoxicity or genotoxicity in the MN test and comet assay. Nonetheless, all treatments of 4-MET with cyclophosphamide (CPA) showed a chemoprotective effect against DNA damage induced by CPA. Further, molecular docking analysis indicated a strong interaction between 4-MET and the catalytic site of glutathione reductase. These effects may be related to (1) damage prevention, (2) interaction with detoxifying enzymes, and (3) DNA-repair induction. Therefore, data demonstrated that 4-MET presents a favorable profile to be used in chemopreventive therapies.
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Affiliation(s)
- Jefferson Hollanda Véras
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Camila Regina Do Vale
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | | | | | - Clever Gomes Cardoso
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | | | | | | | - Carolina Ribeiro E Silva
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
| | - Lee Chen-Chen
- Laboratory of Radiobiology and Mutagenesis, Department of Genetics, Institute of Biological Sciences, Federal University of Goiás, Goiânia, Brazil
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Stevens-Barrón JC, Wall-Medrano A, Álvarez-Parrilla E, Olivas-Armendáriz I, Astiazaran-García H, Robles-Zepeda RE, De la Rosa LA. Synergistic Interactions between Tocol and Phenolic Extracts from Different Tree Nut Species against Human Cancer Cell Lines. Molecules 2022; 27:molecules27103154. [PMID: 35630629 PMCID: PMC9143696 DOI: 10.3390/molecules27103154] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/04/2022] [Accepted: 05/12/2022] [Indexed: 01/16/2023] Open
Abstract
Tree nuts are rich in polar (phenolic compounds) and non-polar (tocols) antioxidants, with recognized effects in the prevention of diseases such as cancer. These biomolecules possess antiproliferative activity on cancer cells; however, the combined effect of both types of compounds has been scarcely studied, and this approach could give valuable information on the real anticancer potential of tree nuts. In the present study, the antiproliferative activity of pure tocols and phenolic compounds, tocol- and phenolic-rich extracts (TRE and PRE, respectively) from tree nuts and the extracts combinations, was evaluated in four cancer (HeLa, MCF7, PC3, A549) and one control (ARPE) cell lines. The most sensible cell lines were HeLa and MCF7. TRE and PRE from nuts were chemically characterized; γ and δ tocopherols, total tocols, total tocopherols and total phenolic compounds were negatively correlated with cell viability in MCF7 cells. In HeLa cells, only δ and total tocopherols were negatively correlated with cell viability. TRE and PRE had a low effect in reducing cell viability of the cancer cell lines, the most effective extracts were those of emory oak acorn (EOA), pecan nut (PEC) and walnut (WAL), and these were further studied for their pharmacological interactions, using the combination index and the isobologram methods. Combinations of both extracts showed a synergistic and strongly synergistic behavior in the three nuts (EOA, PEC and WAL), with combination indexes between 0.12 and 0.55. These results highlight the need to understand the interactions among components found in complex natural extracts or food products in order to fully understand their bioactivities.
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Affiliation(s)
- Jazmín C. Stevens-Barrón
- Department of Chemical-Biological Sciences, Institute of Biomedical Sciences, Autonomous University of Ciudad Juarez, Ciudad Juárez 32310, Mexico;
- Department of Veterinary Sciences, Institute of Biomedical Sciences, Autonomous University of Ciudad Juarez, Ciudad Juárez 32310, Mexico
- Correspondence: (J.C.S.-B.); (L.A.D.l.R.)
| | - Abraham Wall-Medrano
- Department of Health Sciences, Institute of Biomedical Sciences, Autonomous University of Ciudad Juarez, Ciudad Juárez 32310, Mexico;
| | - Emilio Álvarez-Parrilla
- Department of Chemical-Biological Sciences, Institute of Biomedical Sciences, Autonomous University of Ciudad Juarez, Ciudad Juárez 32310, Mexico;
| | - Imelda Olivas-Armendáriz
- Department of Physics and Mathematics, Institute of Engineering and Technology, Autonomous University of Ciudad Juarez, Ciudad Juárez 32310, Mexico;
| | | | - Ramón E. Robles-Zepeda
- Department of Chemical-Biological Sciences, University of Sonora, Hermosillo 83000, Mexico;
| | - Laura A. De la Rosa
- Department of Chemical-Biological Sciences, Institute of Biomedical Sciences, Autonomous University of Ciudad Juarez, Ciudad Juárez 32310, Mexico;
- Correspondence: (J.C.S.-B.); (L.A.D.l.R.)
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Evaluation of cytotoxic activity of live toxoplasma gondii tachyzoites and toxoplasma antigen on MCF-7 human breast cancer cell line. EUREKA: LIFE SCIENCES 2022. [DOI: 10.21303/2504-5695.2022.002409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The aim of this study was to investigate the cytotoxic potency of live Toxoplasma gondii tachyzoites as well as Toxoplasma antigen on MCF-7 human breast cancer cell line. Cancer cell lines are considered an essential preliminary step towards in-vitro investigation of the potential antineoplastic impact of novel chemotherapeutic agents. Pathogens, including viruses, bacteria, and parasites are noticeably under investigation, considering their potential antineoplastic activity. Some have attained a steady position in the clinical field as hepatitis B virus, human papilloma virus and BCG immunization. Toxoplasma gondii is an apicomplexan parasite with promising antineoplastic activity. In this study, live Toxoplasma tachyzoites provoked a direct cytotoxic effect on MCF-7 in a dose dependent manner, while Toxoplasma antigen didn’t induce such impact.
Skipping the direct cytotoxic effect of Toxoplasma antigen doesn’t totally divert the possible antineoplastic activity of Toxoplasma antigen. Potential alternative immune mediated mechanisms could be an alternative. Further in-vivo studies in different cancer models are mandatory to investigate the underlying mechanisms of antineoplastic activity of Toxoplasma gondii
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García-Cuellar CM, Hernández-Delgadillo R, Solis-Soto JM, Meester I, Sánchez-Pérez Y, Nakagoshi-Cepeda SE, Nakagoshi-Cepeda MAA, Chellam S, Cabral-Romero C. Cetylpyridinium chloride inhibits human breast tumor cells growth in a no-selective way. J Appl Biomater Funct Mater 2022; 20:22808000221092157. [PMID: 35485910 DOI: 10.1177/22808000221092157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Analyze the antitumor capacity of cetylpyridinium chloride (CPC) on human breast tumor cells, and the possible action mechanism. MATERIAL AND METHODS The human breast tumor cells MCF-7 and no-tumor breast cells MCF-10A were exposed to CPC under various condition (concentration and duration). Cell viability was measured with MTT assay, the LIVE/DEAD assay, and fluorescence microscopy. Membrane permeability after CPC exposure was evaluated by Calcein AM assay, mitochondrial morphology with a MitoView staining, and genotoxicity with the comet assay and fluorescence microscopy. RESULTS CPC was cytotoxic to both MCF-7 and MCF-10A as of a 24-h exposure to 0.1 µM. Cytotoxicity was dose-dependent and reached 91% for MCF-7 and 78% for MCF-10A after a 24-h exposure to 100 µM CPC, which outperformed the positive control doxorubicin in effectiveness and selectivity. The LD50 of CPC on was 6 µM for MCF-7 and 8 µM for MCF-10A, yielding a selectivity index of 1.41. A time response analysis revealed 64% dead cells after only 5 min of exposure to 100 µM CPC. With respect to the action mechanisms, the comet assay did not reveal genome fragmentation. On the other hand, membrane damage was dose-dependent and may also affect mitochondrial morphology. CONCLUSION Cetylpyridinium chloride inhibits MCF-7 cell growing in a non-selective way as of 5 min of exposure. The action mechanism of CPC on tumor cells involves cell membrane damage without change neither mitochondrial morphology nor genotoxicity.
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Affiliation(s)
| | - Rene Hernández-Delgadillo
- Laboratorio de Biología Molecular, Facultad de Odontología, Universidad Autónoma de Nuevo León, UANL, Monterrey, Nuevo León, México
| | - Juan Manuel Solis-Soto
- Laboratorio de Biología Molecular, Facultad de Odontología, Universidad Autónoma de Nuevo León, UANL, Monterrey, Nuevo León, México
| | - Irene Meester
- Departamento de Ciencias Básicas, Universidad de Monterrey, San Pedro Garza García, México
| | - Yesennia Sánchez-Pérez
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología, Ciudad de México, México
| | - Sergio Eduardo Nakagoshi-Cepeda
- Laboratorio de Biología Molecular, Facultad de Odontología, Universidad Autónoma de Nuevo León, UANL, Monterrey, Nuevo León, México
| | | | | | - Claudio Cabral-Romero
- Laboratorio de Biología Molecular, Facultad de Odontología, Universidad Autónoma de Nuevo León, UANL, Monterrey, Nuevo León, México
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de Oliveira VA, Pereira IC, Nogueira TR, Martins JA, Péres-Rodrigues G, de Jesus e Silva de Almendra B, Silva VC, Júnior DD, Leal FL, de Castro e Sousa JM, da Silva FC, de Carvalho Melo Cavalcanti AA, de Azevedo Paiva A. The Role of Vitamin E in Breast Cancer Treatment and Prevention: Current Perspectives. CURRENT NUTRITION & FOOD SCIENCE 2021. [DOI: 10.2174/1573401316999200614164711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Regarding the multifactorial etiology of breast cancer, food choices, as well
as dietary intake, are the main modified factors in cancer prevention. In this sense, understanding
molecular pathways involved in breast cancer proliferation can help determine the mechanisms of
action of organic compounds such as antioxidant vitamins that are known to protect against cancer.
Objective:
Assess the mechanism of action of vitamin E in breast cancer modulation, with emphasis
on important markers of tumor development.
Methods:
It is a systematic review carried out in PubMed and Web of Science databases, from the
last 5 years, in Portuguese, English and Spanish. The following terms were selected according to The
Medical Subject Headings (MeSH): “breast cancer” OR “breast neoplasms”, “tocopherol” OR
“tocotrienols” OR “vitamin E”, as equated terms.
Results:
A total of 595 articles were found and 25 were selected according to inclusion criteria.
Vitamin E has been related to suppression/overexpression of important tumorigenic pathways,
mainly associated with proliferation, energy metabolism, chemosensitivity and invasion/metastasis.
Clinical studies of vitamin E supplementation are needed to assess the dose/response effect on breast
cancer patients.
Conclusion:
The safety of vitamin E supplementation is still controversial due to current studies design
available. However, when vitamin E is supplemented, the dose and therapeutic regimen must be
carefully decided, including the route of administration and breast cancer subtypes to enhance
desired effects and minimize unwanted side effects.
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Affiliation(s)
- Victor A. de Oliveira
- Department of Nutrition, Federal University of Piaui, UFPI, Piaui State, Teresina, Brazil
| | - Irislene C. Pereira
- Postgraduate Program in Food and Nutrition, Department of Nutrition, Federal University of Piaui, UFPI, Piaui State, Teresina, Brazil
| | - Thaís R. Nogueira
- Postgraduate Program in Food and Nutrition, Department of Nutrition, Federal University of Piaui, UFPI, Piaui State, Teresina, Brazil
| | - Jorddam A. Martins
- Postgraduate Program in Food and Nutrition, Department of Nutrition, Federal University of Piaui, UFPI, Piaui State, Teresina, Brazil
| | | | | | - Vladimir C. Silva
- Department of Biochemistry and Pharmacology, Federal University of Piaui, UFPI, Piaui State, Teresina, Brazil
| | - Dalton D. Júnior
- Department of Biochemistry and Pharmacology, Federal University of Piaui, UFPI, Piaui State, Teresina, Brazil
| | - Francisco L.T. Leal
- Department of Biophysics and Physiology, Federal University of Piaui, UFPI, Piaui State, Teresina, Brazil
| | - Joáo M. de Castro e Sousa
- Department of Biochemistry and Pharmacology, Federal University of Piaui, UFPI, Piaui State, Teresina, Brazil
| | - Felipe C.C. da Silva
- Department of Biology, Federal University of Piaui, UFPI, Piaui State, Picos, Brazil
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Figueroa Gonzalez D, Young F. Gamma Tocopherol Reduced Chemotherapeutic-Induced ROS in an Ovarian Granulosa Cell Line, But Not in Breast Cancer Cell Lines In Vitro. Antioxidants (Basel) 2020; 9:antiox9010051. [PMID: 31936058 PMCID: PMC7023168 DOI: 10.3390/antiox9010051] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/30/2019] [Accepted: 12/31/2019] [Indexed: 01/13/2023] Open
Abstract
Doxorubicin and cyclophosphamide are used to treat breast cancer, but they also cause infertility through off-target cytotoxicity towards proliferating granulosa cells that surround eggs. Each chemotherapeutic generates reactive oxygen species (ROS) but the effects of the combination, or the antioxidants alpha (αToc) and gamma tocopherol (γToc) on ROS in breast cancer or ovarian cells are unknown. Human breast cancer (MCF7, T47D) and ovarian cancer (OVCAR, COV434) cells were loaded with DCDFA and exposed (1, 2, 3, 24 h) to the MCF7-derived EC25 values of individual agents, or to combinations of these. ROS were quantified and viable cells enumerated using crystal violet or DAPI. Each chemotherapeutic killed ~25% of MCF7, T47D and OVCAR cells, but 57 ± 2% (doxorubicin) and 66 ± 2% (cyclophosphamide) of the COV434 granulosa cells. The combined chemotherapeutics decreased COV434 cell viability to 34 ± 5% of control whereas doxorubicin + cyclophosphamide + γToc reduced ROS within 3 h (p < 0.01) and reduced cytotoxicity to 54 ± 4% (p < 0.05). αToc was not cytotoxic, whereas γToc killed ~25% of the breast cancer but none of the ovarian cells. Adding γToc to the combined chemotherapeutics did not change ROS or cytotoxicity in MCF7, T47D or OVCAR cells. The protection γToc afforded COV434 granulosa cells against chemotherapy-induced ROS and cytotoxicity suggests potential for fertility preservation.
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