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Maalouly G, Martin CMA, Baz Y, Saliba Y, Baramili AM, Fares N. Antioxidant and Anti-Apoptotic Neuroprotective Effects of Cinnamon in Imiquimod-Induced Lupus. Antioxidants (Basel) 2024; 13:880. [PMID: 39061948 PMCID: PMC11274315 DOI: 10.3390/antiox13070880] [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: 05/02/2024] [Revised: 06/13/2024] [Accepted: 06/19/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND Despite accumulating evidence correlating oxidative stress with lupus disease activity, the brain redox pathways are still poorly investigated. Cinnamomum cassia, a widely used spice with powerful antioxidant properties, could be a novel therapeutic candidate in lupus. METHODS C57BL/6J female mice were divided into five groups: sham, sham-cinnamon, lupus, lupus-cinnamon starting from induction, and lupus-cinnamon starting two weeks before induction. Lupus was induced by skin application on the right ear with 1.25 mg of 5% imiquimod cream three times per week for six weeks. Cinnamomum cassia was given orally, five days per week, at 200 mg/kg. RESULTS Concomitant to TLR7-MYD88 pathway activation, the p-NRF2/NRF2 and p-FOXO3/FOXO3 ratios were increased in the hippocampus and alleviated by cinnamon treatment. BCL-2 positivity was enhanced in hippocampal neurons and reversed only by preventive cinnamon administration. In vitro, exposure of hippocampal cells to the plasma of different groups induced a surge in oxidative stress. This was associated with an increased t-BID/BID ratio. Cinnamon treatment, particularly in the preventive arm, normalized these modifications. CONCLUSIONS Our study shows a neuroprotective effect of cinnamon by rescuing brain redox and apoptosis homeostasis in lupus, paving the way for its use as a natural therapeutic compound in the clinical management of lupus.
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Affiliation(s)
| | | | | | | | | | - Nassim Fares
- Laboratory of Research in Physiology and Pathophysiology, Pole of Technology and Health, Faculty of Medicine, Saint Joseph University of Beirut, Beirut 1104 2020, Lebanon; (G.M.); (C.-M.-A.M.); (Y.B.); (Y.S.); (A.-M.B.)
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Zhao D, Ji H, Zhao H, Xu Y, He A, He Y. BMSC-derived exosomes regulate the Treg/Th17 balance through the miR-21-5p/TLR4/MyD88/NF-κB pathway to alleviate dry eye symptoms in mice. In Vitro Cell Dev Biol Anim 2024; 60:644-656. [PMID: 38684579 DOI: 10.1007/s11626-024-00910-6] [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: 02/21/2024] [Accepted: 04/08/2024] [Indexed: 05/02/2024]
Abstract
Bone marrow mesenchymal stem cell (BMSC)-derived exosomes (BMSC-Exos) have a variety of biological functions and are extensively involved in the regulation of inflammatory diseases, as well as tissue repair and regeneration. However, the mechanism of action of these compounds in dry eye disease (DED) in mice is still unclear. This study demonstrated that the Treg/Th17 ratio was strongly imbalanced in DED clinical samples. BMSC-Exos can modulate the Treg/Th17 balance, improve the integrity of the corneal epithelial layer, and ameliorate DED progression in mice. Mechanistically, BMSC-Exos dramatically decreased the levels of IL-17 and IL-22; increased the levels of IL-4, IL-10, and TGF-β1; and increased tear secretion and the number of goblet cells in the conjunctiva in mice, thus alleviating the progression of DED. This effect is achieved by BMSC-Exos through the delivery of miR-21-5p to target and restrain TLR4, thereby restraining the MyD88/NF-κB pathway. Our study showed that the upregulation of miR-21-5p in BMSC-Exos may be a therapeutic target for DED. These findings support new ideas and a basis for treating DED, as well as for further study of the application value of exosomes in alleviating DED.
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Affiliation(s)
- Dandan Zhao
- Department of Ophthalmology, Yan'an Hospital of Kunming City, Kunming, Yunnan, 650051, China
| | - Hao Ji
- Department of Information, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, 650032, China
| | - Hongxia Zhao
- Department of Ophthalmology, Yan'an Hospital of Kunming City, Kunming, Yunnan, 650051, China
| | - Yanze Xu
- Department of Ophthalmology, Yan'an Hospital of Kunming City, Kunming, Yunnan, 650051, China
| | - Anni He
- Department of Ophthalmology, Kunming Medical University, Kunming, Yunnan, 650500, China
| | - Yang He
- Department of Ophthalmology, Yan'an Hospital of Kunming City, Kunming, Yunnan, 650051, China.
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Monteiro CEDS, de Cerqueira Fiorio B, Silva FGO, de Fathima Felipe de Souza M, Franco ÁX, Lima MADS, Sales TMAL, Mendes TS, Havt A, Barbosa ALR, Resende ÂC, de Moura RS, de Souza MHLP, Soares PMG. A polyphenol-rich açaí seed extract protects against 5-fluorouracil-induced intestinal mucositis in mice through the TLR-4/MyD88/PI3K/mTOR/NF-κBp65 signaling pathway. Nutr Res 2024; 125:1-15. [PMID: 38428258 DOI: 10.1016/j.nutres.2024.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 01/30/2024] [Accepted: 01/30/2024] [Indexed: 03/03/2024]
Abstract
Açaí seed extract (ASE) is obtained from Euterpe oleracea Mart. (açaí) plant (Amazon region) has high nutritional and functional value. ASE is rich in polyphenolic compounds, mainly proanthocyanidins. Proanthocyanidins can modulate the immune system and oxidative stress by inhibiting the toll-like receptor-4 (TLR-4)/myeloid differentiation primary response 88 (MyD88)/nuclear factor-κB (NF-κB) pathway. A great deal of evidence suggests that inflammatory cytokines and oxidative stress contribute to the pathogenesis of intestinal mucositis, and these events can lead to intestinal dysmotility. We hypothesized that ASE acts as an anti-inflammatory and antioxidant compound in intestinal mucositis induced by 5-fluorouracil (5-FU) through modulation of the TLR-4/MyD88/phosphatidylinositol-3-kinase α/mechanistic target of rapamycin/NF-κBp65 pathway. The animals were divided into linear 5-FU (450 mg/kg) and 5-FU + ASE (10, 30, and 100 mg/kg) groups. The weight loss of the animals was evaluated daily. Samples from duodenum, jejunum, and ileum were obtained for histopathological, biochemical, and functional analyses. ASE reduced weight loss, inflammatory parameters (interleukin-1β; tumor necrosis factor-α; myeloperoxidase activity) and the gene expression of mediators involved in the TLR-2/MyD88/NF-κB pathway. ASE prevented histopathological changes with beneficial effects on gastrointestinal transit delay, gastric emptying, and intestinal absorption/permeability. In conclusion, ASE protects the integrity of the intestinal epithelial barrier by inhibiting the TLR/MyD88/PI3K/mechanistic target of rapamycin/NF-κBp65 pathway.
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Affiliation(s)
- Carlos Eduardo da Silva Monteiro
- LEFFAG- Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Bárbara de Cerqueira Fiorio
- LEFFAG- Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Francisca Géssica Oliveira Silva
- LEFFAG- Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Maria de Fathima Felipe de Souza
- LEFFAG- Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Álvaro Xavier Franco
- LEFFAG- Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Marcos Aurélio de Sousa Lima
- LEFFAG- Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Thiago Meneses Araujo Leite Sales
- LEFFAG- Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Tiago Santos Mendes
- LEFFAG- Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Alexandre Havt
- Laboratory of Molecular Toxinology, LTM, Federal University of Ceará, Fortaleza, CE, Brazil
| | - André Luiz Reis Barbosa
- LAFFEX- Laboratory of Experimental Physiopharmacology, Parnaiba Delta Federal University (UFDPAR), Parnaíba, PI, Brazil
| | - Ângela Castro Resende
- Department of Pharmacology, Institute of Biology, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Roberto Soares de Moura
- Department of Pharmacology, Institute of Biology, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Pedro Marcos Gomes Soares
- LEFFAG- Laboratory of Physiopharmacology Study of Gastrointestinal Tract, Faculty of Medicine, Federal University of Ceará, Fortaleza, CE, Brazil.
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Yu M, Yang Y, Zhang J, Liu R, Huang L, Wu J, Kang Z, Zhou J, Yang Z. Association between TRAF1/C5 Gene Polymorphisms and IgA Vasculitis in Chinese Children. Immunol Invest 2024; 53:281-293. [PMID: 38117213 DOI: 10.1080/08820139.2023.2295477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
OBJECTIVE To investigate the association between loci rs3761847 and rs10818488 of tumor necrosis factor receptor-associated factor 1/complement C5 (TRAF1/C5) gene and the susceptibility to IgAV. METHODS 100 blood samples of children with IgAV and 100 blood samples of healthy children were collected from the Third Xiangya Hospital of Central South University from June 2017 to June 2019. The target gene fragment was amplified by polymerase chain reaction (PCR), and the single nucleic acid gene polymorphism of the gene loci was detected by PCR sequencing based typing technique. The association between gene polymorphism of each locus and susceptibility to IgAV was analyzed. RESULTS There were significant differences in both genotype (P < .05) and allele frequencies (P < .05) of rs3761847 of TRAF1/C5 gene between the IgAV group and the control group.Besides, the risks of developing IgAV in children with the TT genotype was 0.495 times and in children with the C allele was 1.627 times of that in children with other genotypes and alleles, respectively (P < .05). For IgAV patients, renal involvement risk in children with CC genotype was 5.859 times of that in children with other genotypes (P < .05). There were no significant differences in genotype (P > .05) and allele frequencies (P > .05) of rs10818488 of TRAF1/C5 gene between the IgAV group and the control group. IgAV patients with TT genotype had a 3.2 times higher risk of renal involvement than those with other genotypes (P < .05). CONCLUSIONS There is an association between locus rs3761847 of TRAF1/C5 gene single nucleotide polymorphisms and susceptibility to IgAV. The T allele at locus rs3761847 of TRAF1/C5 gene may be a protective factor for IgAV. The C allele at locus rs3761847 and the T allele at locus rs10818488 of TRAF1/C5 gene may be associated with kidney injury in IgAV.
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Affiliation(s)
- Meng Yu
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, P.R. China
| | - Yeyi Yang
- Department of Nephropathy and Rheumatology, Third Xiangya Hospital of Central South University, Changsha, Hunan, P.R. China
| | - Juan Zhang
- Department of Pediatrics, Zhuzhou Central Hospital, Zhuzhou, Hunan, P.R. China
| | - Rui Liu
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, P.R. China
| | - Lihua Huang
- Central Laboratory, The Third Xiangya Hospital of Central South University, Changsha, Hunan, P.R. China
| | - Jiping Wu
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, P.R. China
| | - Zhijuan Kang
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, P.R. China
| | - Jin Zhou
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, P.R. China
| | - Zuocheng Yang
- Department of Pediatrics, Third Xiangya Hospital of Central South University, Changsha, Hunan, P.R. China
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