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Pérez-Valero Á, Serna-Diestro J, Tafur Rangel A, Barbuto Ferraiuolo S, Schiraldi C, Kerkhoven EJ, Villar CJ, Lombó F. Biosynthesis of Hesperetin, Homoeriodictyol, and Homohesperetin in a Transcriptomics-Driven Engineered Strain of Streptomyces albidoflavus. Int J Mol Sci 2024; 25:4053. [PMID: 38612864 PMCID: PMC11012174 DOI: 10.3390/ijms25074053] [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: 03/07/2024] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
Flavonoids exhibit various bioactivities including anti-oxidant, anti-tumor, anti-inflammatory, and anti-viral properties. Methylated flavonoids are particularly significant due to their enhanced oral bioavailability, improved intestinal absorption, and greater stability. The heterologous production of plant flavonoids in bacterial factories involves the need for enough biosynthetic precursors to allow for high production levels. These biosynthetic precursors are malonyl-CoA and l-tyrosine. In this work, to enhance flavonoid biosynthesis in Streptomyces albidoflavus, we conducted a transcriptomics study for the identification of candidate genes involved in l-tyrosine catabolism. The hypothesis was that the bacterial metabolic machinery would detect an excess of this amino acid if supplemented with the conventional culture medium and would activate the genes involved in its catabolism towards energy production. Then, by inactivating those overexpressed genes (under an excess of l-tyrosine), it would be possible to increase the intracellular pools of this precursor amino acid and eventually the final flavonoid titers in this bacterial factory. The RNAseq data analysis in the S. albidoflavus wild-type strain highlighted the hppD gene encoding 4-hydroxyphenylpyruvate dioxygenase as a promising target for knock-out, exhibiting a 23.2-fold change (FC) in expression upon l-tyrosine supplementation in comparison to control cultivation conditions. The subsequent knock-out of the hppD gene in S. albidoflavus resulted in a 1.66-fold increase in the naringenin titer, indicating enhanced flavonoid biosynthesis. Leveraging the improved strain of S. albidoflavus, we successfully synthesized the methylated flavanones hesperetin, homoeriodictyol, and homohesperetin, achieving titers of 2.52 mg/L, 1.34 mg/L, and 0.43 mg/L, respectively. In addition, the dimethoxy flavanone homohesperetin was produced as a byproduct of the endogenous metabolism of S. albidoflavus. To our knowledge, this is the first time that hppD deletion was utilized as a strategy to augment the biosynthesis of flavonoids. Furthermore, this is the first report where hesperetin and homoeriodictyol have been synthesized from l-tyrosine as a precursor. Therefore, transcriptomics is, in this case, a successful approach for the identification of catabolism reactions affecting key precursors during flavonoid biosynthesis, allowing the generation of enhanced production strains.
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Affiliation(s)
- Álvaro Pérez-Valero
- Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Area of Microbiology, Department of Functional Biology, University of Oviedo, 33006 Oviedo, Principality of Asturias, Spain; (Á.P.-V.); (J.S.-D.); (C.J.V.)
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006 Oviedo, Principality of Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33006 Oviedo, Principality of Asturias, Spain
| | - Juan Serna-Diestro
- Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Area of Microbiology, Department of Functional Biology, University of Oviedo, 33006 Oviedo, Principality of Asturias, Spain; (Á.P.-V.); (J.S.-D.); (C.J.V.)
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006 Oviedo, Principality of Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33006 Oviedo, Principality of Asturias, Spain
| | - Albert Tafur Rangel
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden; (A.T.R.); (E.J.K.)
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Simona Barbuto Ferraiuolo
- Section of Biotechnology and Molecular Biology, Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, Via De Crecchio 7, 80138 Naples, Italy; (S.B.F.); (C.S.)
| | - Chiara Schiraldi
- Section of Biotechnology and Molecular Biology, Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, Via De Crecchio 7, 80138 Naples, Italy; (S.B.F.); (C.S.)
| | - Eduard J. Kerkhoven
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden; (A.T.R.); (E.J.K.)
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
- SciLifeLab, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Claudio J. Villar
- Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Area of Microbiology, Department of Functional Biology, University of Oviedo, 33006 Oviedo, Principality of Asturias, Spain; (Á.P.-V.); (J.S.-D.); (C.J.V.)
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006 Oviedo, Principality of Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33006 Oviedo, Principality of Asturias, Spain
| | - Felipe Lombó
- Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Area of Microbiology, Department of Functional Biology, University of Oviedo, 33006 Oviedo, Principality of Asturias, Spain; (Á.P.-V.); (J.S.-D.); (C.J.V.)
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), 33006 Oviedo, Principality of Asturias, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33006 Oviedo, Principality of Asturias, Spain
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Nagayoshi H, Murayama N, Kim V, Kim D, Takenaka S, Yamazaki H, Guengerich FP, Shimada T. Oxidation of Naringenin, Apigenin, and Genistein by Human Family 1 Cytochrome P450 Enzymes and Comparison of Interaction of Apigenin with Human P450 1B1.1 and Scutellaria P450 82D.1. Chem Res Toxicol 2023; 36:1778-1788. [PMID: 37783573 DOI: 10.1021/acs.chemrestox.3c00229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Naringenin, an initial synthesized flavanone in various plant species, is further utilized for production of many biologically active flavonoids, e.g., apigenin, eriodictyol, and genistein, by various plant enzymes including cytochrome P450s (P450s or CYPs). We examined how these flavonoids are oxidized by human P450 family 1 and 2A enzymes. Naringenin was principally oxidized at the 3'-position to form eriodictyol by CYP1 enzymes more efficiently than by CYP2A enzymes, and the resulting eriodictyol was further oxidized to two penta-hydroxylated products. In contrast to plant P450 enzymes, these human P450s did not mediate the desaturation of naringenin and eriodictyol to give apigenin and luteolin, respectively. Apigenin was oxidized at the C3' and C6 positions to form luteolin and scutellarein by these P450s. CYP1B1.1 and 1B1.3 had high activities in apigenin 6-hydroxylation with a homotropic cooperative manner, as has been observed previously in chrysin 6-hydroxylation (Nagayoshi et al., Chem. Res. Toxicol. 2019, 32, 1268-1280). Molecular docking analysis suggested that CYP1B1 had two apigenin binding sites and showed similarities in substrate recognition sites to plant CYP82D.1, one of the enzymes in catalyzing apigenin and chrysin 6-hydroxylations in Scutellaria baicalensis. The present results suggest that human CYP1 enzymes and CYP2A13 in some reactions have important roles in the oxidation of naringenin, eriodictyol, apigenin, and genistein and that human CYP1B1 and Scutellaria CYP82D.1 have similarities in their SRS regions, catalyzing 6-hydroxylation of both apigenin and chrysin.
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Affiliation(s)
- Haruna Nagayoshi
- Food Chemistry Section, Division of Hygienic Chemistry, Osaka Institute of Public Health, Higashinari-ku, Osaka 537-0025, Japan
| | - Norie Murayama
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan
| | - Vitchan Kim
- Department of Biological Sciences, Konkuk University, Seoul 05025, Korea
| | - Donghak Kim
- Department of Biological Sciences, Konkuk University, Seoul 05025, Korea
| | - Shigeo Takenaka
- Department of Clinical Nutrition, Graduate School of Comprehensive Rehabilitation, Osaka Metropolitan University, Habikino, Osaka 583-8555, Japan
| | - Hiroshi Yamazaki
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan
| | - F Peter Guengerich
- Department of Biochemistry, School of Medicine, Vanderbilt University, Nashville, Tennessee 37232-0146, United States
| | - Tsutomu Shimada
- Department of Clinical Nutrition, Graduate School of Comprehensive Rehabilitation, Osaka Metropolitan University, Habikino, Osaka 583-8555, Japan
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Martín JF. Interaction of calcium responsive proteins and transcriptional factors with the PHO regulon in yeasts and fungi. Front Cell Dev Biol 2023; 11:1225774. [PMID: 37601111 PMCID: PMC10437122 DOI: 10.3389/fcell.2023.1225774] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 07/24/2023] [Indexed: 08/22/2023] Open
Abstract
Phosphate and calcium ions are nutrients that play key roles in growth, differentiation and the production of bioactive secondary metabolites in filamentous fungi. Phosphate concentration regulates the biosynthesis of hundreds of fungal metabolites. The central mechanisms of phosphate transport and regulation, mediated by the master Pho4 transcriptional factor are known, but many aspects of the control of gene expression need further research. High ATP concentration in the cells leads to inositol pyrophosphate molecules formation, such as IP3 and IP7, that act as phosphorylation status reporters. Calcium ions are intracellular messengers in eukaryotic organisms and calcium homeostasis follows elaborated patterns in response to different nutritional and environmental factors, including cross-talking with phosphate concentrations. A large part of the intracellular calcium is stored in vacuoles and other organelles forming complexes with polyphosphate. The free cytosolic calcium concentration is maintained by transport from the external medium or by release from the store organelles through calcium permeable transient receptor potential (TRP) ion channels. Calcium ions, particularly the free cytosolic calcium levels, control the biosynthesis of fungal metabolites by two mechanisms, 1) direct interaction of calcium-bound calmodulin with antibiotic synthesizing enzymes, and 2) by the calmodulin-calcineurin signaling cascade. Control of very different secondary metabolites, including pathogenicity determinants, are mediated by calcium through the Crz1 factor. Several interactions between calcium homeostasis and phosphate have been demonstrated in the last decade: 1) The inositol pyrophosphate IP3 triggers the release of calcium ions from internal stores into the cytosol, 2) Expression of the high affinity phosphate transporter Pho89, a Na+/phosphate symporter, is controlled by Crz1. Also, mutants defective in the calcium permeable TRPCa7-like of Saccharomyces cerevisiae shown impaired expression of Pho89. This information suggests that CrzA and Pho89 play key roles in the interaction of phosphate and calcium regulatory pathways, 3) Finally, acidocalcisomes organelles have been found in mycorrhiza and in some melanin producing fungi that show similar characteristics as protozoa calcisomes. In these organelles there is a close interaction between orthophosphate, pyrophosphate and polyphosphate and calcium ions that are absorbed in the polyanionic polyphosphate matrix. These advances open new perspectives for the control of fungal metabolism.
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Affiliation(s)
- Juan F. Martín
- Departamento de Biología Molecular, Área de Microbiología, Universidad de León, León, Spain
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Magadán-Corpas P, Ye S, Pérez-Valero Á, McAlpine PL, Valdés-Chiara P, Torres-Bacete J, Nogales J, Villar CJ, Lombó F. Optimized De Novo Eriodictyol Biosynthesis in Streptomyces albidoflavus Using an Expansion of the Golden Standard Toolkit for Its Use in Actinomycetes. Int J Mol Sci 2023; 24:8879. [PMID: 37240225 PMCID: PMC10219347 DOI: 10.3390/ijms24108879] [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: 04/28/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Eriodictyol is a hydroxylated flavonoid displaying multiple pharmaceutical activities, such as antitumoral, antiviral or neuroprotective. However, its industrial production is limited to extraction from plants due to its inherent limitations. Here, we present the generation of a Streptomyces albidoflavus bacterial factory edited at the genome level for an optimized de novo heterologous production of eriodictyol. For this purpose, an expansion of the Golden Standard toolkit (a Type IIS assembly method based on the Standard European Vector Architecture (SEVA)) has been created, encompassing a collection of synthetic biology modular vectors (adapted for their use in actinomycetes). These vectors have been designed for the assembly of transcriptional units and gene circuits in a plug-and-play manner, as well as for genome editing using CRISPR-Cas9-mediated genetic engineering. These vectors have been used for the optimization of the eriodictyol heterologous production levels in S. albidoflavus by enhancing the flavonoid-3'-hydroxylase (F3'H) activity (by means of a chimera design) and by replacing three native biosynthetic gene clusters in the bacterial chromosome with the plant genes matBC (involved in extracellular malonate uptake and its intracellular activation into malonyl-CoA), therefore allowing more malonyl-CoA to be devoted to the heterologous production of plant flavonoids in this bacterial factory. These experiments have allowed an increase in production of 1.8 times in the edited strain (where the three native biosynthetic gene clusters have been deleted) in comparison with the wild-type strain and a 13 times increase in eriodictyol overproduction in comparison with the non-chimaera version of the F3'H enzyme.
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Affiliation(s)
- Patricia Magadán-Corpas
- Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Departamento de Biología Funcional, Área de Microbiología, Universidad de Oviedo, 33006 Oviedo, Spain; (P.M.-C.); (S.Y.); (Á.P.-V.); (P.L.M.); (P.V.-C.); (C.J.V.)
- IUOPA (Instituto Universitario de Oncología del Principado de Asturias), 33006 Oviedo, Spain
- ISPA (Instituto de Investigación Sanitaria del Principado de Asturias), 33006 Oviedo, Spain
| | - Suhui Ye
- Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Departamento de Biología Funcional, Área de Microbiología, Universidad de Oviedo, 33006 Oviedo, Spain; (P.M.-C.); (S.Y.); (Á.P.-V.); (P.L.M.); (P.V.-C.); (C.J.V.)
- IUOPA (Instituto Universitario de Oncología del Principado de Asturias), 33006 Oviedo, Spain
- ISPA (Instituto de Investigación Sanitaria del Principado de Asturias), 33006 Oviedo, Spain
| | - Álvaro Pérez-Valero
- Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Departamento de Biología Funcional, Área de Microbiología, Universidad de Oviedo, 33006 Oviedo, Spain; (P.M.-C.); (S.Y.); (Á.P.-V.); (P.L.M.); (P.V.-C.); (C.J.V.)
- IUOPA (Instituto Universitario de Oncología del Principado de Asturias), 33006 Oviedo, Spain
- ISPA (Instituto de Investigación Sanitaria del Principado de Asturias), 33006 Oviedo, Spain
| | - Patrick L. McAlpine
- Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Departamento de Biología Funcional, Área de Microbiología, Universidad de Oviedo, 33006 Oviedo, Spain; (P.M.-C.); (S.Y.); (Á.P.-V.); (P.L.M.); (P.V.-C.); (C.J.V.)
- IUOPA (Instituto Universitario de Oncología del Principado de Asturias), 33006 Oviedo, Spain
- ISPA (Instituto de Investigación Sanitaria del Principado de Asturias), 33006 Oviedo, Spain
| | - Paula Valdés-Chiara
- Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Departamento de Biología Funcional, Área de Microbiología, Universidad de Oviedo, 33006 Oviedo, Spain; (P.M.-C.); (S.Y.); (Á.P.-V.); (P.L.M.); (P.V.-C.); (C.J.V.)
- IUOPA (Instituto Universitario de Oncología del Principado de Asturias), 33006 Oviedo, Spain
- ISPA (Instituto de Investigación Sanitaria del Principado de Asturias), 33006 Oviedo, Spain
| | - Jesús Torres-Bacete
- Department of Systems Biology, Centro Nacional de Biotecnologia, CSIC, 28049 Madrid, Spain; (J.T.-B.); (J.N.)
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC), 28040 Madrid, Spain
| | - Juan Nogales
- Department of Systems Biology, Centro Nacional de Biotecnologia, CSIC, 28049 Madrid, Spain; (J.T.-B.); (J.N.)
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC), 28040 Madrid, Spain
| | - Claudio J. Villar
- Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Departamento de Biología Funcional, Área de Microbiología, Universidad de Oviedo, 33006 Oviedo, Spain; (P.M.-C.); (S.Y.); (Á.P.-V.); (P.L.M.); (P.V.-C.); (C.J.V.)
- IUOPA (Instituto Universitario de Oncología del Principado de Asturias), 33006 Oviedo, Spain
- ISPA (Instituto de Investigación Sanitaria del Principado de Asturias), 33006 Oviedo, Spain
| | - Felipe Lombó
- Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Departamento de Biología Funcional, Área de Microbiología, Universidad de Oviedo, 33006 Oviedo, Spain; (P.M.-C.); (S.Y.); (Á.P.-V.); (P.L.M.); (P.V.-C.); (C.J.V.)
- IUOPA (Instituto Universitario de Oncología del Principado de Asturias), 33006 Oviedo, Spain
- ISPA (Instituto de Investigación Sanitaria del Principado de Asturias), 33006 Oviedo, Spain
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Lan HN, Liu RY, Liu ZH, Li X, Li BZ, Yuan YJ. Biological valorization of lignin to flavonoids. Biotechnol Adv 2023; 64:108107. [PMID: 36758651 DOI: 10.1016/j.biotechadv.2023.108107] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/12/2023] [Accepted: 01/31/2023] [Indexed: 02/10/2023]
Abstract
Lignin is the most affluent natural aromatic biopolymer on the earth, which is the promising renewable source for valuable products to promote the sustainability of biorefinery. Flavonoids are a class of plant polyphenolic secondary metabolites containing the benzene ring structure with various biological activities, which are largely applied in health food, pharmaceutical, and medical fields. Due to the aromatic similarity, microbial conversion of lignin derived aromatics to flavonoids could facilitate flavonoid biosynthesis and promote the lignin valorization. This review thereby prospects a novel valorization route of lignin to high-value natural products and demonstrates the potential advantages of microbial bioconversion of lignin to flavonoids. The biodegradation of lignin polymers is summarized to identify aromatic monomers as momentous precursors for flavonoid synthesis. The biosynthesis pathways of flavonoids in both plants and strains are introduced and compared. After that, the key branch points and important intermediates are clearly discussed in the biosynthesis pathways of flavonoids. Moreover, the most significant enzyme reactions including Claisen condensation, cyclization and hydroxylation are demonstrated in the biosynthesis pathways of flavonoids. Finally, current challenges and potential future strategies are also discussed for transforming lignin into various flavonoids. The holistic microbial conversion routes of lignin to flavonoids could make a sustainable production of flavonoids and improve the feasibility of lignin valorization.
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Affiliation(s)
- Hai-Na Lan
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Ruo-Ying Liu
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Zhi-Hua Liu
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Xia Li
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Bing-Zhi Li
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China.
| | - Ying-Jin Yuan
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
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Naringenin and Hesperidin as Promising Alternatives for Prevention and Co-Adjuvant Therapy for Breast Cancer. Antioxidants (Basel) 2023; 12:antiox12030586. [PMID: 36978836 PMCID: PMC10045673 DOI: 10.3390/antiox12030586] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
Citrus (genus Citrus L.) fruits are essential sources of bioactive compounds with antioxidant properties, such as flavonoids. These polyphenolic compounds are divided into subclasses, in which flavanones are the most prominent. Among them, naringenin and hesperidin are emerging compounds with anticancer potential, especially for breast cancer (BC). Several mechanisms have been proposed, including the modulation of epigenetics, estrogen signaling, induction of cell death via regulation of apoptotic signaling pathways, and inhibition of tumor invasion and metastasis. However, this information is sparse in the literature and needs to be brought together to provide an overview of how naringenin and hesperidin can serve as therapeutic tools for drug development and as a successful co-adjuvant strategy against BC. This review detailed such mechanisms in this context and highlighted how naringenin and hesperidin could interfere in BC carcinogenesis and be helpful as potential alternative therapeutic sources for breast cancer treatment.
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