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Xuan L, Wang Y, Qu C, Yan Y, Yi W, Yang J, Skonieczna M, Chen C, Miszczyk J, Ivanov DS, Zakaly HMH, Markovic V, Huang R. Metabolomics reveals that PS-NPs promote lung injury by regulating prostaglandin B1 through the cGAS-STING pathway. CHEMOSPHERE 2023; 342:140108. [PMID: 37714480 DOI: 10.1016/j.chemosphere.2023.140108] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/18/2023] [Accepted: 09/06/2023] [Indexed: 09/17/2023]
Abstract
Nanoplastics have been widely studied as environmental pollutants, which can accumulate in the human body through the food chain or direct contact. Research has shown that nanoplastics can affect the immune system and mitochondrial function, but the underlying mechanisms are unclear. Lungs and macrophages have important immune and metabolic functions. This study explored the effects of 100 nm PS-NPs on innate immunity, mitochondrial function, and cellular metabolism-related pathways in lung (BEAS-2B) cells and macrophages (RAW264.7). The results had shown that PS-NPs exposure caused a decrease in mitochondrial membrane potential, intracellular ROS accumulation, and Ca2+ overload, and activated the cGAS-STING signaling pathway related to innate immunity. These changes had been observed at concentrations of PS-NPs as low as 60 μg/mL, which might have been comparable to environmental levels. Non-target metabolomics and Western Blotting results confirmed that PS-NPs regulated prostaglandin B1 and other metabolites to cause cell damage through the cGAS-STING pathway. Supplementation of prostaglandin B1 alleviated the immune activation and metabolic disturbance caused by PS-NPs exposure. This study identified PS-NPs-induced innate immune activation, mitochondrial dysfunction, and metabolic toxicity pathways, providing new insights into the potential for adverse outcomes of NPs in human life.
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Affiliation(s)
- Lihui Xuan
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province, 410078, China
| | - Yin Wang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province, 410078, China.
| | - Can Qu
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province, 410078, China
| | - Yuhui Yan
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province, 410078, China
| | - Wensen Yi
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province, 410078, China
| | - Jingjing Yang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province, 410078, China
| | - Magdalena Skonieczna
- Department of Systems Biology and Engineering, Silesian University of Technology, Institute of Automatic Control, Akademicka 16, Gliwice, 44-100, Poland; Biotechnology Centre, Silesian University of Technology, Krzywoustego 8, Gliwice, 44-100, Poland.
| | - Cuimei Chen
- School of Public Health, Xiang Nan University, Chenzhou, 423000, Hunan, China.
| | - Justyna Miszczyk
- Department of Medical Physics, Cyclotron Centre Bronowice Institute of Nuclear Physics Polish Academy of Sciences, PL-31342, Krakow, Poland.
| | - Dmitry S Ivanov
- Quantum Electronics Division, Lebedev Physical Institute, 119991, Moscow, Russia.
| | - Hesham M H Zakaly
- Institute of Physics and Technology, Ural Federal University, Yekaterinburg, 620002, Russia; Physics Department, Faculty of Science, Al-Azhar University, 71524, Assuit, Egypt.
| | - Vladimir Markovic
- Faculty of Sciences, University of Kragujevac, 34000, Kragujevac, Serbia.
| | - Ruixue Huang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, Hunan Province, 410078, China.
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Notaro A, Lauricella M, Di Liberto D, Emanuele S, Giuliano M, Attanzio A, Tesoriere L, Carlisi D, Allegra M, De Blasio A, Calvaruso G, D'Anneo A. A Deadly Liaison between Oxidative Injury and p53 Drives Methyl-Gallate-Induced Autophagy and Apoptosis in HCT116 Colon Cancer Cells. Antioxidants (Basel) 2023; 12:1292. [PMID: 37372022 DOI: 10.3390/antiox12061292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Methyl gallate (MG), which is a gallotannin widely found in plants, is a polyphenol used in traditional Chinese phytotherapy to alleviate several cancer symptoms. Our studies provided evidence that MG is capable of reducing the viability of HCT116 colon cancer cells, while it was found to be ineffective on differentiated Caco-2 cells, which is a model of polarized colon cells. In the first phase of treatment, MG promoted both early ROS generation and endoplasmic reticulum (ER) stress, sustained by elevated PERK, Grp78 and CHOP expression levels, as well as an upregulation in intracellular calcium content. Such events were accompanied by an autophagic process (16-24 h), where prolonging the time (48 h) of MG exposure led to cellular homeostasis collapse and apoptotic cell death with DNA fragmentation and p53 and γH2Ax activation. Our data demonstrated that a crucial role in the MG-induced mechanism is played by p53. Its level, which increased precociously (4 h) in MG-treated cells, was tightly intertwined with oxidative injury. Indeed, the addition of N-acetylcysteine (NAC), which is a ROS scavenger, counteracted the p53 increase, as well as the MG effect on cell viability. Moreover, MG promoted p53 accumulation into the nucleus and its inhibition by pifithrin-α (PFT-α), which is a negative modulator of p53 transcriptional activity, enhanced autophagy, increased the LC3-II level and inhibited apoptotic cell death. These findings provide new clues to the potential action of MG as a possible anti-tumor phytomolecule for colon cancer treatment.
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Affiliation(s)
- Antonietta Notaro
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy
| | - Marianna Lauricella
- Section of Biochemistry, Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy
| | - Diana Di Liberto
- Section of Biochemistry, Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy
| | - Sonia Emanuele
- Section of Biochemistry, Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy
| | - Michela Giuliano
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy
| | - Alessandro Attanzio
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy
| | - Luisa Tesoriere
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy
| | - Daniela Carlisi
- Section of Biochemistry, Department of Biomedicine, Neurosciences and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy
| | - Mario Allegra
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy
| | - Anna De Blasio
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy
| | - Giuseppe Calvaruso
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy
| | - Antonella D'Anneo
- Laboratory of Biochemistry, Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, 90127 Palermo, Italy
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DHA Induces Cell Death through the Production of ROS and the Upregulation of CHOP in Fibroblast-like Synovial Cells from Human Rheumatoid Arthritis Patients. Int J Mol Sci 2023; 24:ijms24021734. [PMID: 36675245 PMCID: PMC9865349 DOI: 10.3390/ijms24021734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/29/2022] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Rheumatoid arthritis (RA) is an inflammatory disease marked by a massive proliferation of synovial cells in the joints. In this study, we investigated the pro-apoptotic effects of docosahexaenoic acid (DHA) in human fibroblast-like synovial cells from RA patients (RA-FLS). An in vitro study using MH7A cells showed that DHA treatment induced caspase-8-dependent apoptosis in a dose-dependent manner and reduced the TNF-α-mediated induction of MMP-9 and IL-1β. DHA also induced the phosphorylation of eIF2α, the expression of the ER stress markers ATF4 and C/EBP homologous protein (CHOP), and death receptor 5 (DR5). The knockdown of CHOP or DR5 increased cell viability and reduced apoptosis in DHA-treated cells. Furthermore, the knockdown of CHOP reduced DHA-mediated DR5 expression, while the overexpression of CHOP increased DR5 expression. We also found that DHA treatment induced the accumulation of reactive oxygen species (ROS), and pretreatment with the anti-oxidant Tiron effectively abrogated not only the expression of CHOP and DR5, but also DHA-induced apoptosis. Under this condition, cell viability was increased, while PARP-1 cleavage and caspase-8 activation were reduced. All the findings were reproduced in human primary synovial cells obtained from RA patients. These results suggest that the DHA-mediated induction of ROS and CHOP induced apoptosis through the upregulation of DR5 in RA-FLSs, and that CHOP could be used as a therapy for RA.
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Niwa E, Mitani T, Saitoh S, Kanemaru K, Ishida S, Yokoigawa K, Oyama Y. Zinc increases vulnerability of rat thymic lymphocytes to arachidonic acid under in vitro conditions. Food Chem Toxicol 2016; 96:177-82. [DOI: 10.1016/j.fct.2016.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 07/15/2016] [Accepted: 08/05/2016] [Indexed: 12/12/2022]
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Comba A, Almada LL, Tolosa EJ, Iguchi E, Marks DL, Vara Messler M, Silva R, Fernandez-Barrena MG, Enriquez-Hesles E, Vrabel AL, Botta B, Di Marcotulio L, Ellenrieder V, Eynard AR, Pasqualini ME, Fernandez-Zapico ME. Nuclear Factor of Activated T Cells-dependent Down-regulation of the Transcription Factor Glioma-associated Protein 1 (GLI1) Underlies the Growth Inhibitory Properties of Arachidonic Acid. J Biol Chem 2015; 291:1933-1947. [PMID: 26601952 DOI: 10.1074/jbc.m115.691972] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Indexed: 12/11/2022] Open
Abstract
Numerous reports have demonstrated a tumor inhibitory effect of polyunsaturated fatty acids (PUFAs). However, the molecular mechanisms modulating this phenomenon are in part poorly understood. Here, we provide evidence of a novel antitumoral mechanism of the PUFA arachidonic acid (AA). In vivo and in vitro experiments showed that AA treatment decreased tumor growth and metastasis and increased apoptosis. Molecular analysis of this effect showed significantly reduced expression of a subset of antiapoptotic proteins, including BCL2, BFL1/A1, and 4-1BB, in AA-treated cells. We demonstrated that down-regulation of the transcription factor glioma-associated protein 1 (GLI1) in AA-treated cells is the underlying mechanism controlling BCL2, BFL1/A1, and 4-1BB expression. Using luciferase reporters, chromatin immunoprecipitation, and expression studies, we found that GLI1 binds to the promoter of these antiapoptotic molecules and regulates their expression and promoter activity. We provide evidence that AA-induced apoptosis and down-regulation of antiapoptotic genes can be inhibited by overexpressing GLI1 in AA-sensitive cells. Conversely, inhibition of GLI1 mimics AA treatments, leading to decreased tumor growth, cell viability, and expression of antiapoptotic molecules. Further characterization showed that AA represses GLI1 expression by stimulating nuclear translocation of NFATc1, which then binds the GLI1 promoter and represses its transcription. AA was shown to increase reactive oxygen species. Treatment with antioxidants impaired the AA-induced apoptosis and down-regulation of GLI1 and NFATc1 activation, indicating that NFATc1 activation and GLI1 repression require the generation of reactive oxygen species. Collectively, these results define a novel mechanism underlying AA antitumoral functions that may serve as a foundation for future PUFA-based therapeutic approaches.
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Affiliation(s)
- Andrea Comba
- From the Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, Minnesota 55905,; Instituto de Investigaciones en Ciencias de la Salud, Consejo Nacional de Investigaciones Científicas y Técnicas and Facultad de Ciencias Médicas-Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Luciana L Almada
- From the Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, Minnesota 55905
| | - Ezequiel J Tolosa
- From the Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, Minnesota 55905
| | - Eriko Iguchi
- From the Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, Minnesota 55905
| | - David L Marks
- From the Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, Minnesota 55905
| | - Marianela Vara Messler
- Instituto de Investigaciones en Ciencias de la Salud, Consejo Nacional de Investigaciones Científicas y Técnicas and Facultad de Ciencias Médicas-Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Renata Silva
- Instituto de Investigaciones en Ciencias de la Salud, Consejo Nacional de Investigaciones Científicas y Técnicas and Facultad de Ciencias Médicas-Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Maite G Fernandez-Barrena
- From the Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, Minnesota 55905,.
| | - Elisa Enriquez-Hesles
- From the Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, Minnesota 55905
| | - Anne L Vrabel
- From the Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, Minnesota 55905
| | - Bruno Botta
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza University, Center for Life Nano Science at Sapienza, Istituto Italiano di Tecnologia, 00161 Rome, Italy
| | - Lucia Di Marcotulio
- Department of Molecular Medicine, Sapienza University, Pasteur Institute/Cenci-Bolognetti Foundation, 00161 Rome, Italy, and
| | - Volker Ellenrieder
- Gastroenterology and Gastrointestinal Oncology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Aldo R Eynard
- Instituto de Investigaciones en Ciencias de la Salud, Consejo Nacional de Investigaciones Científicas y Técnicas and Facultad de Ciencias Médicas-Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Maria E Pasqualini
- Instituto de Investigaciones en Ciencias de la Salud, Consejo Nacional de Investigaciones Científicas y Técnicas and Facultad de Ciencias Médicas-Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Martin E Fernandez-Zapico
- From the Schulze Center for Novel Therapeutics, Division of Oncology Research, Mayo Clinic, Rochester, Minnesota 55905
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6
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Ponnurangam S, O'Connell GD, Hung CT, Somasundaran P. Biocompatibility of polysebacic anhydride microparticles with chondrocytes in engineered cartilage. Colloids Surf B Biointerfaces 2015; 136:207-13. [PMID: 26398146 DOI: 10.1016/j.colsurfb.2015.08.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 06/30/2015] [Accepted: 08/24/2015] [Indexed: 12/24/2022]
Abstract
One of main challenges in developing clinically relevant engineered cartilage is overcoming limited nutrient diffusion due to progressive elaboration of extracellular matrix at the periphery of the construct. Macro-channels have been used to decrease the nutrient path-length; however, the channels become occluded with matrix within weeks in culture, reducing nutrient diffusion. Alternatively, microparticles can be imbedded throughout the scaffold to provide localized nutrient delivery. In this study, we evaluated biocompatibility of polysebacic anhydride (PSA) polymers and the effectiveness of PSA-based microparticles for short-term delivery of nutrients in engineered cartilage. PSA-based microparticles were biocompatible with juvenile bovine chondrocytes for concentrations up to 2mg/mL; however, cytotoxicity was observed at 20mg/mL. Cytotoxicity at high concentrations is likely due to intracellular accumulation of PSA degradation products and resulting lipotoxicity. Cytotoxicity of PSA was partially reversed in the presence of bovine serum albumin. In conclusion, the findings from this study demonstrate concentration-dependent biocompatibility of PSA-based microparticles and potential application as a nutrient delivery vehicle that can be imbedded in scaffolds for tissue engineering.
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Affiliation(s)
- Sathish Ponnurangam
- Earth and Environmental Engineering, 500 W, 120th street, 918 Mudd Columbia University, New York, NY, 10027, United States.
| | - Grace D O'Connell
- Mechanical Engineering, 5122 Etcheverry Hall, University of California, Berkeley, CA 94720, United States
| | - Clark T Hung
- Biomedical engineering, 351 Engineering Terrace, 1210 Amsterdam Avenue, Columbia University, New York, NY 10027, United States
| | - Ponisseril Somasundaran
- Earth and Environmental Engineering, 500 W, 120th street, 918 Mudd Columbia University, New York, NY, 10027, United States
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7
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Cui ZG, Ogawa R, Tsuneyama K, Yan G, Tao L, Shimomura A, Inadera H. Insight into the molecular mechanism of heme oxygenase-1 induction by docosahexaenoic acid in U937 cells. Chem Biol Interact 2015; 238:180-8. [PMID: 26163453 DOI: 10.1016/j.cbi.2015.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 06/28/2015] [Accepted: 07/06/2015] [Indexed: 01/01/2023]
Abstract
Heme oxygenase-1 (HO-1) has anti-inflammatory effects on myeloid cells in response to various stimuli. To date, little is known about whether fatty acids can affect HO-1 induction. Here, we report the induction of HO-1 by docosahexaenoic acid (DHA) and the associated molecular mechanisms in human myelomonocytic lymphoma U937 cells. When U937 cells were treated with DHA, eicosapentaenoic acid, palmitic acid or oleic acid, DHA was the most effective inducer of HO-1. The activation of AKT and glycogen synthase kinase-3β did not significantly change after DHA treatment. However, DHA increased the activation of extracellular signal-regulated kinases 1 and 2 (ERK1/2), but not of other mitogen-activated protein kinases such as p38 and JNK. The increase in HO-1 expression was significantly inhibited by U0126, an ERK1/2 inhibitor. Nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf-2) and its binding to the HO-1 promoter significantly increased upon DHA treatment. An increase in intracellular reactive oxygen species was detected by dichlorofluorescein diacetate, but not by hydroethidium or 2-[6-(4-hydroxy)phenoxy-3H-xanthen-3-on-9-yl] benzoic acid after DHA treatment. Pretreatment with NAC dramatically inhibited the ERK1/2 activation, binding of Nrf-2 to antioxidant response elements (AREs) located in the HO-1 promoter and the induction of HO-1 by DHA. In conclusion, DHA increased HO-1 expression in U937 cells via activation of ERK1/2 and increased Nrf-2 binding to ARE in the HO-1 promoter. These findings will help develop better strategies for treating inflammatory disorders with DHA.
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Affiliation(s)
- Zheng-Guo Cui
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
| | - Ryohei Ogawa
- Department of Radiological Sciences, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
| | - Koichi Tsuneyama
- Department of Diagnostic Pathology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
| | - Gen Yan
- Department of Radiology, The Affiliated Hospital of Jiangnan University, Wuxi 21422, PR China.
| | - Lingling Tao
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
| | - Akiko Shimomura
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
| | - Hidekuni Inadera
- Department of Public Health, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan.
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Gara RK, Srivastava VK, Duggal S, Bagga JK, Bhatt M, Sanyal S, Mishra DP. Shikonin selectively induces apoptosis in human prostate cancer cells through the endoplasmic reticulum stress and mitochondrial apoptotic pathway. J Biomed Sci 2015; 22:26. [PMID: 25879420 PMCID: PMC4389804 DOI: 10.1186/s12929-015-0127-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Accepted: 03/06/2015] [Indexed: 12/12/2022] Open
Abstract
Background Despite the recent progress in screening and therapy, a majority of prostate cancer cases eventually attain hormone refractory and chemo-resistant attributes. Conventional chemotherapeutic strategies are effective at very high doses for only palliative management of these prostate cancers. Therefore chemo-sensitization of prostate cancer cells could be a promising strategy for increasing efficacy of the conventional chemotherapeutic agents in prostate cancer patients. Recent studies have indicated that the chemo-preventive natural agents restore the pro-apoptotic protein expression and induce endoplasmic reticulum stress (ER stress) leading to the inhibition of cellular proliferation and activation of the mitochondrial apoptosis in prostate cancer cells. Therefore reprogramming ER stress-mitochondrial dependent apoptosis could be a potential approach for management of hormone refractory chemoresistant prostate cancers. We aimed to study the effects of the natural naphthoquinone Shikonin in human prostate cancer cells. Results The results indicated that Shikonin induces apoptosis in prostate cancer cells through the dual induction of the endoplasmic reticulum stress and mitochondrial dysfunction. Shikonin induced ROS generation and activated ER stress and calpain activity. Moreover, addition of antioxidants attenuated these effects. Shikonin also induced the mitochondrial apoptotic pathway mediated through the enhanced expression of the pro-apoptotic Bax and inhibition of Bcl-2, disruption of the mitochondrial membrane potential (MMP) followed by the activation of caspase-9, caspase-3, and PARP cleavage. Conclusion The results suggest that shikonin could be useful in the therapeutic management of hormone refractory prostate cancers due to its modulation of the pro-apoptotic ER stress and mitochondrial apoptotic pathways. Electronic supplementary material The online version of this article (doi:10.1186/s12929-015-0127-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Rishi Kumar Gara
- Cell Death Research Laboratory, Endocrinology Division CSIR-Central Drug Research Institute, Lucknow, 226031, India. .,Center for Cancer Research, UTHSC, Memphis, TN, USA.
| | | | - Shivali Duggal
- Department of Radiotherapy, King George Medical University, Lucknow, 226003, India.
| | - Jaspreet Kaur Bagga
- Cell Death Research Laboratory, Endocrinology Division CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | - Mlb Bhatt
- Department of Radiotherapy, King George Medical University, Lucknow, 226003, India.
| | - Sabyasachi Sanyal
- Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | - Durga Prasad Mishra
- Cell Death Research Laboratory, Endocrinology Division CSIR-Central Drug Research Institute, Lucknow, 226031, India.
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Almada M, Domingues MR, Dória ML, Fonseca BM, Teixeira NA, Correia-da-Silva G. Lipidomic approach towards deciphering anandamide effects in rat decidual cell. J Cell Physiol 2015; 230:1549-57. [DOI: 10.1002/jcp.24901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 12/17/2014] [Indexed: 01/23/2023]
Affiliation(s)
- Marta Almada
- UCIBIO, REQUIMTE; Laboratory of Biochemistry; Biological Sciences Department; Faculty of Pharmacy; University of Porto; Porto Portugal
| | - M. Rosário Domingues
- Mass Spectrometry Center; QOPNA; Department of Chemistry; University of Aveiro; Aveiro Portugal
| | - M. Luísa Dória
- Mass Spectrometry Center; QOPNA; Department of Chemistry; University of Aveiro; Aveiro Portugal
| | - Bruno M. Fonseca
- UCIBIO, REQUIMTE; Laboratory of Biochemistry; Biological Sciences Department; Faculty of Pharmacy; University of Porto; Porto Portugal
| | - Natércia A. Teixeira
- UCIBIO, REQUIMTE; Laboratory of Biochemistry; Biological Sciences Department; Faculty of Pharmacy; University of Porto; Porto Portugal
| | - Georgina Correia-da-Silva
- UCIBIO, REQUIMTE; Laboratory of Biochemistry; Biological Sciences Department; Faculty of Pharmacy; University of Porto; Porto Portugal
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Zhang S, Konstantinidis DG, Yang JQ, Mizukawa B, Kalim K, Lang RA, Kalfa TA, Zheng Y, Guo F. Gene targeting RhoA reveals its essential role in coordinating mitochondrial function and thymocyte development. THE JOURNAL OF IMMUNOLOGY 2014; 193:5973-82. [PMID: 25398325 DOI: 10.4049/jimmunol.1400839] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Thymocyte development is regulated by complex signaling pathways. How these signaling cascades are coordinated remains elusive. RhoA of the Rho family small GTPases plays an important role in actin cytoskeleton organization, cell adhesion, migration, proliferation, and survival. Nonetheless, the physiological function of RhoA in thymocyte development is not clear. By characterizing a conditional gene targeting mouse model bearing T cell deletion of RhoA, we show that RhoA critically regulates thymocyte development by coordinating multiple developmental events. RhoA gene disruption caused a strong developmental block at the pre-TCR checkpoint and during positive selection. Ablation of RhoA led to reduced DNA synthesis in CD4(-)CD8(-), CD4(+)CD8(-), and CD4(-)CD8(+) thymocytes but not in CD4(+)CD8(+) thymocytes. Instead, RhoA-deficient CD4(+)CD8(+) thymocytes showed an impaired mitosis. Furthermore, we found that abrogation of RhoA led to an increased apoptosis in all thymocyte subpopulations. Importantly, we show that the increased apoptosis was resulted from reduced pre-TCR expression and increased production of reactive oxygen species (ROS), which may be because of an enhanced mitochondrial function, as manifested by increased oxidative phosphorylation, glycolysis, mitochondrial membrane potential, and mitochondrial biogenesis in RhoA-deficient thymocytes. Restoration of pre-TCR expression or treatment of RhoA-deficient mice with a ROS scavenger N-acetylcysteine partially restored thymocyte development. These results suggest that RhoA is required for thymocyte development and indicate, to our knowledge, for the first time that fine-tuning of ROS production by RhoA, through a delicate control of metabolic circuit, may contribute to thymopoiesis.
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Affiliation(s)
- Shuangmin Zhang
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Research Foundation, Cincinnati, OH 45229; and
| | - Diamantis G Konstantinidis
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Research Foundation, Cincinnati, OH 45229; and
| | - Jun-Qi Yang
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Research Foundation, Cincinnati, OH 45229; and
| | - Benjamin Mizukawa
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Research Foundation, Cincinnati, OH 45229; and
| | - Khalid Kalim
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Research Foundation, Cincinnati, OH 45229; and
| | - Richard A Lang
- Division of Pediatric Ophthalmology, Children's Hospital Research Foundation, Cincinnati, OH 45229
| | - Theodosia A Kalfa
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Research Foundation, Cincinnati, OH 45229; and
| | - Yi Zheng
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Research Foundation, Cincinnati, OH 45229; and
| | - Fukun Guo
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Research Foundation, Cincinnati, OH 45229; and
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Sharma G, Rani I, Kansal S, Bhatnagar A, Agnihotri N. Alterations in Mitochondrial Membrane in Chemopreventive Action of Fish Oil. Cancer Invest 2013; 31:231-40. [DOI: 10.3109/07357907.2013.780076] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Zhang H, Shao D, Wu Y, Cai C, Hu C, Shou X, Dai B, Ye B, Wang M, Jia X. Apoptotic responses of Carassius auratus lymphocytes to nodularin exposure in vitro. FISH & SHELLFISH IMMUNOLOGY 2012; 33:1229-1237. [PMID: 22951228 DOI: 10.1016/j.fsi.2012.08.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Revised: 07/29/2012] [Accepted: 08/08/2012] [Indexed: 06/01/2023]
Abstract
Nodularin, a metabolite of Nodularin spumigena, is widely detected in water blooms worldwide and causes serious negative effects on fish. The apoptosis-related cytotoxic effects and mechanisms of nodularin on Carassius auratus lymphocytes were investigated. Transmission electron microscopy results showed that nodularin-treated lymphocytes display a series of morphological changes, including condensed cytoplasm, nuclear chromatin agglutination and marginalization. DNA fragmentation was verified by the DNA-ladder and formation of sub-G1 DNA peaks. These cell characteristics confirmed the occurrence of apoptosis in lymphocytes. Flow cytometric results showed that the percentages of apoptotic cells incubated with 1, 5, 10, and 100 μg/L nodularin for 12 h reached 15.76%, 17.36%, 20.34% and 44.21%, respectively; controls showed low rates of apoptosis (2.4%). The mechanism of apoptosis induced by nodularin was determined, and results showed that nodularin exposure caused a significant increase in intracellular reactive oxygen species (ROS), loss of mitochondrial transmembrane potential in a dose-dependent manner, upregulation of intracellular Ca²⁺, downregulation of Bcl-2 and upregulation of Bax expression at the mRNA and protein levels, and activation of caspase-3 and caspase-9 without caspase-8. In summary, all the results suggest that nodularin induces lymphocyte apoptosis via the mitochondrial apoptotic pathway and destroys the immune response of fish.
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Affiliation(s)
- Hangjun Zhang
- Department of Environmental Sciences, Hangzhou Normal University, Xuelin Road 16#, Xiasha Gaojiao Dongqu, Hangzhou, Zhejiang Province 310036, China.
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Vigerust NF, Cacabelos D, Burri L, Berge K, Wergedahl H, Christensen B, Portero-Otin M, Viste A, Pamplona R, Berge RK, Bjørndal B. Fish oil and 3-thia fatty acid have additive effects on lipid metabolism but antagonistic effects on oxidative damage when fed to rats for 50 weeks. J Nutr Biochem 2012; 23:1384-93. [DOI: 10.1016/j.jnutbio.2011.08.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Revised: 08/05/2011] [Accepted: 08/18/2011] [Indexed: 12/13/2022]
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Clarke KJ, Porter RK. Uncoupling protein 1 dependent reactive oxygen species production by thymus mitochondria. Int J Biochem Cell Biol 2012; 45:81-9. [PMID: 23036787 DOI: 10.1016/j.biocel.2012.09.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 09/03/2012] [Accepted: 09/25/2012] [Indexed: 11/29/2022]
Abstract
We have previously shown that uncoupling protein 1 is present in thymus and has a role in T-cell development. As reactive oxygen species have been implicated in T-cell development, we set out to determine whether uncoupling protein 1 had the potential to regulate reactive oxygen species production in mitochondria isolated from thymus. This was achieved by inhibiting proton leak through uncoupling protein 1 using the purine nucleotide GDP and through ablation of uncoupling protein 1, measuring the amplex red sensitive reactive oxygen species production by mitochondria. In this work we demonstrate, for the first time, that uncoupling protein 1 has the potential to regulate reactive oxygen species production in thymus mitochondria. We also show that reverse electron transport is possible in thymus mitochondria respiring on succinate and glycerol-3-phosphate. The implications of this regulatory role for uncoupling protein 1 are discussed in the context of thymus function. This article is part of a Directed Issue entitled: Bioenergetic dysfunction, adaptation and therapy.
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Affiliation(s)
- Kieran J Clarke
- School of Biochemistry and Immunology, Trinity Institute of Biomedical Science, Trinity College Dublin, Ireland.
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Crnkovic S, Riederer M, Lechleitner M, Hallström S, Malli R, Graier WF, Lindenmann J, Popper H, Olschewski H, Olschewski A, Frank S. Docosahexaenoic acid-induced unfolded protein response, cell cycle arrest, and apoptosis in vascular smooth muscle cells are triggered by Ca²⁺-dependent induction of oxidative stress. Free Radic Biol Med 2012; 52:1786-95. [PMID: 22391221 PMCID: PMC3482662 DOI: 10.1016/j.freeradbiomed.2012.02.036] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Revised: 01/25/2012] [Accepted: 02/24/2012] [Indexed: 11/30/2022]
Abstract
Proliferation of vascular smooth muscle cells is a characteristic of pathological vascular remodeling and represents a significant therapeutic challenge in several cardiovascular diseases. Docosahexaenoic acid (DHA), a member of the n-3 polyunsaturated fatty acids, was shown to inhibit proliferation of numerous cell types, implicating several different mechanisms. In this study we examined the molecular events underlying the inhibitory effects of DHA on proliferation of primary human smooth muscle cells isolated from small pulmonary artery (hPASMCs). DHA concentration-dependently inhibited hPASMC proliferation, induced G1 cell cycle arrest, and decreased cyclin D1 protein expression. DHA activated the unfolded protein response (UPR), evidenced by increased mRNA expression of HSPA5, increased phosphorylation of eukaryotic initiation factor 2α, and splicing of X-box binding protein 1. DHA altered cellular lipid composition and led to increased reactive oxygen species (ROS) production. DHA-induced ROS were dependent on both intracellular Ca(2+) release and entry of extracellular Ca(2+). Overall cellular ROS and mitochondrial ROS were decreased by RU360, a specific inhibitor of mitochondrial Ca(2+) uptake. DHA-induced mitochondrial dysfunction was evidenced by decreased mitochondrial membrane potential and decreased cellular ATP content. DHA triggered apoptosis as found by increased numbers of cleaved caspase-3- and TUNEL-positive cells. The free radical scavenger Tempol counteracted DHA-induced ROS, cell cycle arrest, induction of UPR, and apoptosis. We conclude that Ca(2+)-dependent oxidative stress is the central and initial event responsible for induction of UPR, cell cycle arrest, and apoptosis in DHA-treated hPASMCs.
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Key Words
- atf6, activating transcription factor 6
- dha, docosahexaenoic acid
- δψm, mitochondrial membrane potential
- eif2α, eukaryotic initiation factor 2α
- er, endoplasmic reticulum
- fcs, fetal calf serum
- hpasmc, human pulmonary artery smooth muscle cell
- hspa5, heat shock 70-kda protein 5
- ire1α, inositol-requiring enzyme 1α
- n-3 pufa, n-3 polyunsaturated fatty acid
- perk, protein kinase rna-like endoplasmic reticulum kinase
- pc, phosphatidylcholine
- pe, phosphatidylethanolamine
- ptp, permeability transition pore
- ros, reactive oxygen species
- tg, triglyceride
- upr, unfolded protein response
- xbp-1, x-box binding protein 1
- oxidative stress
- unfolded protein response
- n-3 polyunsaturated fatty acid
- apoptosis
- mitochondria
- cell cycle
- free radicals
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Affiliation(s)
- Slaven Crnkovic
- Institute of Molecular Biology and Biochemistry, Center for Molecular Medicine, Austria
- University Clinic for Anesthesiology and Intensive Care Medicine, Austria
| | - Monika Riederer
- Institute of Molecular Biology and Biochemistry, Center for Molecular Medicine, Austria
| | - Margarete Lechleitner
- Institute of Molecular Biology and Biochemistry, Center for Molecular Medicine, Austria
| | - Seth Hallström
- Institute of Physiological Chemistry, Center for Physiological Medicine, Austria
| | - Roland Malli
- Institute of Molecular Biology and Biochemistry, Center for Molecular Medicine, Austria
| | - Wolfgang F. Graier
- Institute of Molecular Biology and Biochemistry, Center for Molecular Medicine, Austria
| | - Jörg Lindenmann
- University Clinic for Surgery, Clinical Department of Thorax and Hyperbaric Surgery, Austria
| | - Helmut Popper
- Institute of Pathology, Division of Pulmonology, Medical University of Graz, Austria
| | - Horst Olschewski
- Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, Austria
| | - Andrea Olschewski
- University Clinic for Anesthesiology and Intensive Care Medicine, Austria
| | - Saša Frank
- Institute of Molecular Biology and Biochemistry, Center for Molecular Medicine, Austria
- Corresponding author. Fax: + 43 316 380 9615.
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Åhs M, Prasad A, Aminov Z, Carpenter DO. Mechanisms of cell death of thymocytes induced by polyunsaturated, monounsaturated and trans-fatty acids. J Cell Biochem 2011; 112:3863-71. [DOI: 10.1002/jcb.23319] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Otton R, Marin DP, Bolin AP, de Cássia Santos Macedo R, Campoio TR, Fineto C, Guerra BA, Leite JR, Barros MP, Mattei R. Combined fish oil and astaxanthin supplementation modulates rat lymphocyte function. Eur J Nutr 2011; 51:707-18. [PMID: 21972007 DOI: 10.1007/s00394-011-0250-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Accepted: 09/16/2011] [Indexed: 12/31/2022]
Abstract
PURPOSE Higher intakes of n-3 polyunsaturated fatty acids that are abundant in marine fishes have been long described as a "good nutritional intervention" with increasing clinical benefits to cardiovascular health, inflammation, mental, and neurodegenerative diseases. The present study was designed to investigate the effect of daily fish oil (FO-10 mg EPA/kg body weight (BW) and 7 mg DHA/kg BW) intake by oral gavage associated with the antioxidant astaxanthin (ASTA-1 mg/kg BW) on the redox metabolism and the functional properties of lymphocytes from rat lymph nodes. METHODS This study was conducted by measurements of lymphocyte proliferation capacity, ROS production [superoxide (O₂(•-)) and hydrogen peroxide (H₂O₂)], nitric oxide (NO(•)) generation, intracellular calcium release, oxidative damage to lipids and proteins, activities of major antioxidant enzymes, GSH/GSSG content, and cytokines release. RESULTS After 45 days of FO + ASTA supplementation, the proliferation capacity of activated T- and B-lymphocytes was significantly diminished followed by lower levels of O₂(•-), H₂O₂ and NO(•) production, and increased activities of total/SOD, GR and GPx, and calcium release in cytosol. ASTA was able to prevent oxidative modification in cell structures through the suppression of the oxidative stress condition imposed by FO. L: -selectin was increased by FO, and IL-1β was decreased only by ASTA supplementation. CONCLUSION We can propose that association of ASTA with FO could be a good strategy to prevent oxidative stress induced by polyunsaturated fatty acids and also to potentiate immuno-modulatory effects of FO.
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Affiliation(s)
- Rosemari Otton
- Postgraduate Program, Health Sciences, CBS, Cruzeiro do Sul University, Sao Paulo, SP, Brazil.
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Carrillo C, del Mar Cavia M, Alonso-Torre SR. Oleic acid versus linoleic and α-linolenic acid. different effects on Ca2+ signaling in rat thymocytes. Cell Physiol Biochem 2011; 27:373-80. [PMID: 21471726 DOI: 10.1159/000327963] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2011] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Oleic acid is the principal fatty acid of olive oil composition and is reported to play a crucial role in its healthy aspects. However, the detailed mechanism of action is poorly understood. AIMS This study aims to elucidate the role of oleic acid in calcium signaling in rat thymocytes, in comparison to linoleic and linolenic acid. METHODS Fatty acids were applied to thymocytes isolated from wistar rats and loaded with Fura-2 to measure calcium signals. RESULTS The main results showed a concentration-dependent increase in [Ca(2+)](i) induced by the 3 fatty acids. Raising the number of unsaturations resulted in greater increases. Two different pathways contributed to the increase induced by the polyunsaturated fatty acids: an IP(3)- independent release from the thapsigargin-sensitive stores and an extracellular calcium entry by econazole and nifedipine-insensitive channels. However, the OA-induced increases in [Ca(2+)](i) seemed to be due mostly to the Ca(2+) recruited from the intracellular stores. CONCLUSION This study demonstrates that the fatty acids tested induce increases in [Ca(2+)](i) in rat thymocytes, with differences in close relation to the degree of unsaturation. Such differences could be responsible for their different physiological action.
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Affiliation(s)
- Celia Carrillo
- Nutrition and Bromatology, Faculty of Sciences, University of Burgos, Burgos, Spain
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