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Liu T, Zhang R, Jiang L, Zhou L, Zhang H, Liang F, Xiong P, Chen H, Wen T, Shen X, Xie C, Tian L. The potential application and molecular mechanisms of natural products in the treatment of allergic rhinitis: A review. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155663. [PMID: 38759345 DOI: 10.1016/j.phymed.2024.155663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/21/2024] [Accepted: 04/20/2024] [Indexed: 05/19/2024]
Abstract
BACKGROUNDS Allergic rhinitis (AR) is a non-infectious chronic inflammation of the nasal mucosa mainly mediated by immunoglobulin E (IgE) in atopic individuals after exposure to allergens. The application of AR guideline-recommended pharmacotherapies can rapidly relieve symptoms of AR but with poor long-term efficacy, and many of these therapies have side effects. Many natural products and their derivatives have shown potential therapeutic effects on AR with fewer side effects. OBJECTIVES This review aims to expand understanding of the roles and mechanisms of natural compounds in the treatment of AR and to highlight the importance of utilizing natural products in the treatment of AR. MATERIAL AND METHOD We conducted a systematic literature search using PubMed, Web of Science, Google Scholar, and Clinical Trials. The search was performed using keywords including natural products, natural compounds, bioproducts, plant extracts, naturally derived products, natural resources, allergic rhinitis, hay fever, pollinosis, nasal allergy. Comprehensive research and compilation of existing literature were conducted. RESULTS This article provided a comprehensive review of the potential therapeutic effects and mechanisms of natural compounds in the treatment of AR. We emphasized that natural products primarily exert their effects by modulating signalling pathways such as NF-κB, MAPKs, STAT3/ROR-γt/Foxp3, and GATA3/T-bet, thereby inhibiting the activation and expansion of allergic inflammation. We also discussed their toxicity and clinical applications in AR therapy. CONCLUSION Taken together, natural products exhibit great potential in the treatment of AR. This review is also expected to facilitate the application of natural products as candidates for treating AR. Furthermore, drug discovery based on natural products has a promising prospect in AR treatment.
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Affiliation(s)
- Ting Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China; Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China
| | - Rong Zhang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China; Jiangsu Province Hospital of Chinese Medicine, Nanjing 210004, China
| | - Luyun Jiang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China
| | - Li Zhou
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China
| | - Hai Zhang
- Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Fangqi Liang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China
| | - Peizheng Xiong
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China; Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Hongqing Chen
- Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Tian Wen
- Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Xiaofei Shen
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China; TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China.
| | - Chunguang Xie
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China; TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China.
| | - Li Tian
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China.
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Martín-Cruz L, Benito-Villalvilla C, Sirvent S, Angelina A, Palomares O. The Role of Regulatory T Cells in Allergic Diseases: Collegium Internationale Allergologicum (CIA) Update 2024. Int Arch Allergy Immunol 2024; 185:503-518. [PMID: 38408438 DOI: 10.1159/000536335] [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: 12/25/2023] [Accepted: 01/16/2024] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND Allergy represents a major health problem of increasing prevalence worldwide with a high socioeconomic impact. Our knowledge on the molecular mechanisms underlying allergic diseases and their treatments has significantly improved over the last years. The generation of allergen-specific regulatory T cells (Tregs) is crucial in the induction of healthy immune responses to allergens, preventing the development and worsening of allergic diseases. SUMMARY In the last decades, intensive research has focused on the study of the molecular mechanisms involved in Treg development and Treg-mediated suppression. These mechanisms are essential for the induction of sustained tolerance by allergen-specific immunotherapy (AIT) after treatment discontinuation. Compelling experimental evidence demonstrated altered suppressive capacity of Tregs in patients suffering from allergic rhinitis, allergic asthma, food allergy, or atopic dermatitis, as well as the restoration of their numbers and functionality after successful AIT. KEY MESSAGE The better understanding of the molecular mechanisms involved in Treg generation during allergen tolerance induction might well contribute to the development of novel strategies for the prevention and treatment of allergic diseases.
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Affiliation(s)
- Leticia Martín-Cruz
- Department of Biochemistry and Molecular Biology, School of Chemistry, Complutense University, Madrid, Spain
- Department of Biochemistry and Molecular Biology, School of Pharmacy, Complutense University, Madrid, Spain
| | - Cristina Benito-Villalvilla
- Department of Biochemistry and Molecular Biology, School of Chemistry, Complutense University, Madrid, Spain
- Department of Biochemistry and Molecular Biology, School of Medicine, Complutense University, Madrid, Spain
| | - Sofía Sirvent
- Department of Biochemistry and Molecular Biology, School of Chemistry, Complutense University, Madrid, Spain
| | - Alba Angelina
- Department of Biochemistry and Molecular Biology, School of Chemistry, Complutense University, Madrid, Spain
| | - Oscar Palomares
- Department of Biochemistry and Molecular Biology, School of Chemistry, Complutense University, Madrid, Spain
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Wang Z, Zhang L, Li B, Song J, Yu M, Zhang J, Chen C, Zhan J, Zhang H. Kindlin-2 in myoepithelium controls luminal progenitor commitment to alveoli in mouse mammary gland. Cell Death Dis 2023; 14:675. [PMID: 37833248 PMCID: PMC10576046 DOI: 10.1038/s41419-023-06184-2] [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: 07/01/2023] [Revised: 09/11/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023]
Abstract
Myoepithelium plays an important role in mammary gland development, but less is known about the molecular mechanism underlying how myoepithelium controls acinus differentiation during gestation. Herein, we found that loss of Kindlin-2 in myoepithelial cells impaired mammary morphogenesis, alveologenesis, and lactation. Using five genetically modified mouse lines combined with single-cell RNA sequencing, we found a Kindlin-2-Stat3-Dll1 signaling cascade in myoepithelial cells that inactivates Notch signaling in luminal cells and consequently drives luminal progenitor commitment to alveolar cells identity. Single-cell profiling revealed that Kindlin-2 loss significantly reduces the proportion of matured alveolar cells. Mechanistically, Kindlin-2 depletion in myoepithelial cells promotes Stat3 activation and upregulates Dll1, which activates the Notch pathway in luminal cells and inhibits luminal progenitor differentiation and maturation during gestation. Inhibition of Notch1 with tangeretin allowed luminal progenitors to regain commitment ability in the pregnant mice with Kindlin-2 depletion in myoepithelium. Taken together, we demonstrated that Kindlin-2 is essential to myoepithelium-controlled luminal progenitors to alveoli transition during gestation.
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Affiliation(s)
- Zhenbin Wang
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
| | - Lei Zhang
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
| | - Bing Li
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
- Department of Histology and Embryology, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China
| | - Jiagui Song
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
| | - Miao Yu
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
| | - Jing Zhang
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
| | - Ceshi Chen
- Academy of Biomedical Engineering, Kunming Medical University, Kunming, 650500, China.
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
| | - Jun Zhan
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China.
| | - Hongquan Zhang
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China.
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Qiao YL, Zhu MW, Xu S, Jiao WE, Ni HF, Tao ZZ, Chen SM. Allergen-induced CD11c + dendritic cell pyroptosis aggravates allergic rhinitis. Cell Commun Signal 2023; 21:281. [PMID: 37817225 PMCID: PMC10566027 DOI: 10.1186/s12964-023-01309-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 09/07/2023] [Indexed: 10/12/2023] Open
Abstract
BACKGROUND Pyroptosis is crucial for controlling various immune cells. However, the role of allergen-induced CD11c + dendritic cell (DC) pyroptosis in allergic rhinitis (AR) remains unclear. METHODS Mice were grouped into the control group, AR group and necrosulfonamide-treated AR group (AR + NSA group). The allergic symptom scores, OVA-sIgE titres, serum IL-1β/IL-18 levels, histopathological characteristics and T-helper cell-related cytokines were evaluated. CD11c/GSDMD-N-positive cells were examined by immunofluorescence analysis. Murine CD11c + bone marrow-derived DCs (BMDCs) were induced in vitro, stimulated with OVA/HDM, treated with necrosulfonamide (NSA), and further cocultured with lymphocytes to assess BMDC function. An adoptive transfer murine model was used to study the role of BMDC pyroptosis in allergic rhinitis. RESULTS Inhibiting GSDMD-N-mediated pyroptosis markedly protected against Th1/Th2/Th17 imbalance and alleviated inflammatory responses in the AR model. GSDMD-N was mainly coexpressed with CD11c (a DC marker) in AR mice. In vitro, OVA/HDM stimulation increased pyroptotic morphological abnormalities and increased the expression of pyroptosis-related proteins in a dose-dependent manner; moreover, inhibiting pyroptosis significantly decreased pyroptotic morphology and NLRP3, C-Caspase1 and GSDMD-N expression. In addition, OVA-induced BMDC pyroptosis affected CD4 + T-cell differentiation and related cytokine levels, leading to Th1/Th2/Th17 cell imbalance. However, the Th1/Th2/Th17 cell immune imbalance was significantly reversed by NSA. Adoptive transfer of OVA-loaded BMDCs promoted allergic inflammation, while the administration of NSA to OVA-loaded BMDCs significantly reduced AR inflammation. CONCLUSION Allergen-induced dendritic cell pyroptosis promotes the development of allergic rhinitis through GSDMD-N-mediated pyroptosis, which provides a clue to allergic disease interventions. Video Abstract.
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Affiliation(s)
- Yue-Long Qiao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, 430060, Hubei, P.R. China
| | - Ming-Wan Zhu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, 430060, Hubei, P.R. China
| | - Shan Xu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, 430060, Hubei, P.R. China
| | - Wo-Er Jiao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, 430060, Hubei, P.R. China
| | - Hai-Feng Ni
- Department of Otolaryngology-Head and Neck surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310006, P.R. China
| | - Ze-Zhang Tao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, 430060, Hubei, P.R. China.
- Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei, 430060, P.R. China.
| | - Shi-Ming Chen
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, 430060, Hubei, P.R. China.
- Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei, 430060, P.R. China.
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Hjalmarsson E, Petro M, Georén SK, Winqvist O, Cardell LO. Upregulated expression of Notch1/4 - JAG-1/DLL-1 detected in allergic rhinitis. ALLERGY, ASTHMA, AND CLINICAL IMMUNOLOGY : OFFICIAL JOURNAL OF THE CANADIAN SOCIETY OF ALLERGY AND CLINICAL IMMUNOLOGY 2023; 19:41. [PMID: 37183251 PMCID: PMC10183115 DOI: 10.1186/s13223-023-00793-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 04/13/2023] [Indexed: 05/16/2023]
Abstract
BACKGROUND Allergic rhinitis (AR) is a chronic disease with high prevalence. There are currently many treatments available. However, despite an often good therapeutic response, many patients still report impairment in quality of life (QoL) during the pollen season. A skewed T helper (Th)2 polarization is a well-acknowledged pathologic feature of AR. In animal models, local notch signaling in peripheral tissue seems crucial for Th2 cell differentiation and the development of AR. However, the involvement of Notch signaling in Th2 cell differentiation and the development of AR in humans remains unknown. Hence, the present study investigated the human expression of Notch receptors on CD4+ T-cells in nasal mucosa and blood. Correspondingly Notch ligand expression was assessed on nasal epithelial cells and neutrophils. METHODOLOGY Nasal brush and blood samples from 18 patients with pollen-induced AR and 22 healthy controls were collected outside the pollen season. Notch 1-4 and Jagged-1,2 and Delta-like ligand 1,3-4 was analyzed using flow cytometry. RESULTS The fraction of CD4+Notch1+ and CD4+Notch4+ T-cells was higher in AR patients than in healthy control patients. Further, the expression levels of the Notch ligands JAG-1 and DLL-1 were increased in nasal epithelial cells from AR patients compared to healthy control patients. In addition, AR patients displayed higher expression of JAG-1 on neutrophils both in the nasal mucosa and in peripheral blood. CONCLUSION The present study is the first to demonstrate increased activity in the Notch1/4 - JAG-1/DLL-1 pathways among allergic individuals. Further propagating the importance of Notch signalling in AR and blocking JAG-1 and DLL-1-induced Notch signalling by nasal epithelial cells and Neutrophils are potential targets to reduce allergic airway inflammation.
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Affiliation(s)
- Eric Hjalmarsson
- Division of ENT Diseases, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Marianne Petro
- Division of ENT Diseases, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Susanna Kumlien Georén
- Division of ENT Diseases, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | | | - Lars Olaf Cardell
- Division of ENT Diseases, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.
- Department of Otorhinolaryngology, Karolinska University Hospital, Stockholm, Sweden.
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Zhu J, Luo Y, Tong H, Zhong L, Gong Q, Wang Y, Yang M, Song Q. “Drying effect” of fructus aurantii components and the mechanism of action based on network pharmacology and in vitro pharmacodynamic validation. Front Pharmacol 2023; 14:1114010. [PMID: 36969872 PMCID: PMC10031011 DOI: 10.3389/fphar.2023.1114010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/27/2023] [Indexed: 03/11/2023] Open
Abstract
Background: Fructus aurantii (FA) is the dried, unripe fruit of the plant Citrus aurantium L. and its cultivated varieties. We investigated the drying effect of FA components and how this drying affect is achieved.Methods: We employed systems pharmacology to predict the components and targets of FA that produce its drying effect. These predictions were verified by computer simulation and animal experiments. In the latter, we measured the bodyweight, water consumption, urine output, fecal water content, rate of salivary secretion, and cross-sectional area of the long axis of the submandibular gland of mice. Immunohistochemistry was used to measure expression of aquaporin (AQP)5 in the submandibular gland, AQP2 in the kidney, and AQP3 in the colon. ELISA kits were used to measure the horizontal variation of cyclic adenosine monsophosphate (cAMP), cyclic guanosine monophosphate (cGMP) and interferon-γ.Results: Sixty-seven potentially active components of FA were screened out. FA could produce a drying effect after regulating 214 targets through 66 active components. A total of 870 gene ontology (GO) terms and 153 signaling pathways were identified. The hypoxia inducible factor-1 signaling pathway, phosphoinositide 3-kinase-protein kinase B (PI3K-AKT) signaling pathway, calcium signaling pathway, and Ras signaling pathway may have important roles in the drying effect of FA. Four components of FA were identified: sinensetin, tangeretin, 5-demethylnobiletin and chrysin. These four components could increase the serum level of interferon-γ and ratio of cyclic adenosine monophosphate:cyclic guanosine monophosphate in mice, and affect their water consumption, urine output, fecal water content and rate of salivary secretion.Conclusion: Four components of FA (tangeretin, sinensetin, chrysin, 5-Demethylmobiletin) were closely related to the Janus kinase-signal transducer and activator of transcription-3 (JAK-STAT3), PI3K-AKT, and the other signaling pathways. They can regulate the protein expression of JAK2, STAT3, PI3K, lymphocyte cell-specific protein-tyrosine kinase, vascular endothelial growth factor A, and protein kinase B1, affect water metabolism in the body and, finally, result in a drying effect.
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Affiliation(s)
- Jing Zhu
- Pharmacy College, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
- *Correspondence: Jing Zhu, ; Lingyun Zhong,
| | - Yi Luo
- Pharmacy College, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Hengli Tong
- Pharmacy College, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Lingyun Zhong
- Pharmacy College, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
- *Correspondence: Jing Zhu, ; Lingyun Zhong,
| | - Qianfeng Gong
- Pharmacy College, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Yaqi Wang
- Pharmacy College, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Ming Yang
- Pharmacy College, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Qing Song
- Ultrasound Diagnosis Department of Jiangxi Traditional Chinese Medicine Hospital, Nanchang, China
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Zhong Z, Huang X, Zhang S, Zheng S, Cheng X, Li R, Wu D, Mo L, Qu S. Blocking Notch signalling reverses miR-155-mediated inflammation in allergic rhinitis. Int Immunopharmacol 2023; 116:109832. [PMID: 36764280 DOI: 10.1016/j.intimp.2023.109832] [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: 10/15/2022] [Revised: 01/23/2023] [Accepted: 01/30/2023] [Indexed: 02/11/2023]
Abstract
Although recent studies have shown that the Notch signalling pathway induces the production of Th2-related immune factors, the exact mechanism through which Notch signalling exacerbates allergic rhinitis (AR) remains unknown. To investigate the roles of Notch in AR, serum, nasal mucosa and spleen samples were isolated from BALB/c mice. Paraffin sections were stained with haematoxylin and eosin (H&E) or periodic acid-Schiff (PAS) to assess inflammation. Flow cytometry was performed to detect group 2 innate lymphoid cells (ILC2s) in the serum samples, and cytokine levels were measured by enzyme-linked immunosorbent assays (ELISAs). The mRNA expression levels of the Notch signalling pathway components and miR-155 were measured by quantitative real-time PCR (qRT-PCR). In addition, human nasal epithelial cells (HNEpCs) were cultured to investigate the functional consequences of Notch pathway inhibition. The findings demonstrated that symptomatology and pathology were substantially altered, and AR model mice were established. In vivo stimulation with ovalbumin (OVA) significantly increased the Th2-type immune responses and the expression of OVA-sIgE, IL-4, GATA3, NF-κB and miR-155. However, the Notch signalling pathway was significantly deteriorated in AR, and this effect was accompanied by reduced Notch1, Notch2, RBPj and Hes1 levels. These effects were abrogated by gamma-secretase inhibitor IX (DAPT) treatment, and DAPT inhibited the wound healing and proliferation of HNEpCs in a dose-dependent manner. Therefore, our results suggest that blocking the Notch pathway may alleviate miR-155-mediated inflammation via the regulation of immune homeostasis in AR.
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Affiliation(s)
- Ziling Zhong
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China; Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Xueying Huang
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China
| | - Shaojie Zhang
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China
| | - Shaochuan Zheng
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China; Youjiang Medical University for Nationalities, Baize, Guangxi, China
| | - Xiqiao Cheng
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China; Guangxi University of Chinese Medicine, Nanning, Guangxi, China
| | - Rongrong Li
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China
| | - Di Wu
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China; Youjiang Medical University for Nationalities, Baize, Guangxi, China
| | - Liping Mo
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China
| | - Shenhong Qu
- Guangxi Academy of Medical Sciences, The People's Hospital of Guangxi Zhuang Autonomous Region, Department of Otolaryngology, Nanning, Guangxi, China.
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Liu T, Zhang C, Ying J, Wang Y, Yan G, Zhou Y, Lu G. Inhibition of the intracellular domain of Notch1 results in vascular endothelial cell dysfunction in sepsis. Front Immunol 2023; 14:1134556. [PMID: 37205094 PMCID: PMC10185824 DOI: 10.3389/fimmu.2023.1134556] [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: 12/30/2022] [Accepted: 04/21/2023] [Indexed: 05/21/2023] Open
Abstract
Background Notch signaling is critical for regulating the function of vascular endothelial cells (ECs). However, the effect of the intracellular domain of Notch1 (NICD) on EC injury in sepsis remains unclear. Methods We established a cell model of vascular endothelial dysfunction and induced sepsis in a mouse model via lipopolysaccharide (LPS) injection and cecal ligation and puncture (CLP). Endothelial barrier function and expression of endothelial-related proteins were determined using CCK-8, permeability, flow cytometry, immunoblot, and immunoprecipitation assays. The effect of NICD inhibition or activation on endothelial barrier function was evaluated in vitro. Melatonin was used for NICD activation in sepsis mice. The survival rate, Evans blue dye of organs, vessel relaxation assay, immunohistochemistry, ELISA, immunoblot were used to explore the specific role of melatonin for sepsis induced vascular dysfunction in vivo. Results We found that LPS, interleukin 6, and serum collected from septic children could inhibit the expression of NICD and its downstream regulator Hes1, which impaired endothelial barrier function and led to EC apoptosis through the AKT pathway. Mechanistically, LPS decreased the stability of NICD by inhibiting the expression of a deubiquitylating enzyme, ubiquitin-specific proteases 8 (USP8). Melatonin, however, upregulated USP8 expression, thus maintaining the stability of NICD and Notch signaling, which ultimately reduced EC injury in our sepsis model and elevated the survival rate of septic mice. Conclusions We found a previously uncharacterized role of Notch1 in mediating vascular permeability during sepsis, and we showed that inhibition of NICD resulted in vascular EC dysfunction in sepsis, which was reversed by melatonin. Thus, the Notch1 signaling pathway is a potential target for the treatment of sepsis.
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Affiliation(s)
- Tingyan Liu
- Department of Critical Care Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Caiyan Zhang
- Department of Critical Care Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Jiayun Ying
- Department of Critical Care Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Yaodong Wang
- Department of Critical Care Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Gangfeng Yan
- Department of Critical Care Medicine, Children’s Hospital of Fudan University, Shanghai, China
| | - Yufeng Zhou
- Institute of Pediatrics, Children’s Hospital of Fudan University, National Children’s Medical Center, and the Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Fudan University, Shanghai, China
- *Correspondence: Yufeng Zhou, ; Guoping Lu,
| | - Guoping Lu
- Department of Critical Care Medicine, Children’s Hospital of Fudan University, Shanghai, China
- *Correspondence: Yufeng Zhou, ; Guoping Lu,
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Wen S, Li F, Tang Y, Dong L, He Y, Deng Y, Tao Z. MIR222HG attenuates macrophage M2 polarization and allergic inflammation in allergic rhinitis by targeting the miR146a-5p/TRAF6/NF-κB axis. Front Immunol 2023; 14:1168920. [PMID: 37205104 PMCID: PMC10185836 DOI: 10.3389/fimmu.2023.1168920] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 04/13/2023] [Indexed: 05/21/2023] Open
Abstract
Although M2 macrophages are involved in the orchestration of type 2 inflammation in allergic diseases, the mechanisms underlying non-coding RNA (ncRNA)-mediated macrophage polarization in allergic rhinitis (AR) have not been systematically understood. Here, we identified long non-coding RNA (lncRNA) MIR222HG as a key regulator of macrophage polarization and revealed its role in AR. Consistent with our bioinformatic analysis of GSE165934 dataset derived from the Gene Expression Omnibus (GEO) database, lncRNA-MIR222HG and murine mir222hg were downregulated in our clinical samples and animal models of AR, respectively. Mir222hg was upregulated in M1 macrophages and downregulated in M2 macrophages. The allergen-ovalbumin facilitated polarization of RAW264.7 cells to the M2 phenotype, accompanied by the downregulation of mir222hg expression in a dose-dependent manner. Mir222hg facilitates macrophage M1 polarization and reverses M2 polarization caused by ovalbumin. Furthermore, mir222hg attenuates macrophage M2 polarization and allergic inflammation in the AR mouse model. Mechanistically, a series of gain- and loss-of-function experiments and rescue experiments were performed to verify the role of mir222hg as a ceRNA sponge that adsorbed miR146a-5p, upregulated Traf6, and activated the IKK/IκB/P65 pathway. Collectively, the data highlight the remarkable role of MIR222HG in the modulation of macrophage polarization and allergic inflammation, as well as its potential role as a novel AR biomarker or therapeutic target.
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Affiliation(s)
- Silu Wen
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- Department of Otolaryngology, First College of Clinical Medical Science, Wuhan University, Wuhan, Hubei, China
| | - Fen Li
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yulei Tang
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- Department of Otolaryngology, First College of Clinical Medical Science, Wuhan University, Wuhan, Hubei, China
| | - Lin Dong
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- Department of Otolaryngology, First College of Clinical Medical Science, Wuhan University, Wuhan, Hubei, China
| | - Yan He
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- Department of Otolaryngology, First College of Clinical Medical Science, Wuhan University, Wuhan, Hubei, China
| | - Yuqin Deng
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- *Correspondence: Zezhang Tao, ; Yuqin Deng,
| | - Zezhang Tao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
- *Correspondence: Zezhang Tao, ; Yuqin Deng,
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Jiao WE, Xu S, Qiao YL, Kong YG, Sun L, Deng YQ, Yang R, Tao ZZ, Hua QQ, Chen SM. Notch2-dependent GATA3+ Treg cells alleviate allergic rhinitis by suppressing the Th2 cell response. Int Immunopharmacol 2022; 112:109261. [PMID: 36155282 DOI: 10.1016/j.intimp.2022.109261] [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: 07/30/2022] [Revised: 09/10/2022] [Accepted: 09/14/2022] [Indexed: 11/17/2022]
Abstract
The aim of this study was to investigate the role and mechanism of Notch2-dependent GATA3+ Treg cells in allergic rhinitis (AR). Samples were collected from patients in the control and AR groups to detect differences in the numbers of GATA3+ Treg cells and their intracellular Notch2 levels. The effects of Notch2 on GATA3+ Treg cell differentiation and function in vitro were detected. AR mice were subjected to adoptive transfer of GATA3+ Treg cells to detect changes in the allergic inflammatory response and Th2 cells. Mice with Treg cell-specific knockout of Notch2 were constructed, and an AR model was established to detect the changes. The number of GATA3+ Treg cells and intracellular Notch2 expression in peripheral blood of the AR group were decreased compared with the controls (P < 0.05), and the number of GATA3+ Treg cells was significantly negatively correlated with the level of allergen-specific IgE (sIgE; P < 0.01). In vitro experiments showed that Notch2 promoted the differentiation and immunosuppressive function of GATA3+ Treg cells, and Notch2 directly promoted GATA3 transcription in Treg cells (P < 0.05). Animal experiments indicated that adoptive transfer of GATA3+ Treg cells reduced the allergic inflammatory response in AR mice (P < 0.05). The number of GATA3+ Treg cells was decreased in gene knockout mice (P < 0.05), and autoimmune inflammation was observed. After modeling, the allergic inflammatory response was further aggravated (P < 0.05). Overall, our findings indicate that Notch2 alleviates AR by specifically increasing GATA3+ Treg cell differentiation. Notch2 expressed in Treg cells is expected to be a new therapeutic target for AR.
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Affiliation(s)
- Wo-Er Jiao
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Shan Xu
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Yue-Long Qiao
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Yong-Gang Kong
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Liu Sun
- Department of Otolaryngology-Head and Neck Surgery, General Hospital of The Central Theater Command, Wuhan 430070, Hubei, PR China
| | - Yu-Qin Deng
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Rui Yang
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Ze-Zhang Tao
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China; Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Qing-Quan Hua
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China; Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China.
| | - Shi-Ming Chen
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China; Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China.
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11
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Qiao YL, Jiao WE, Xu S, Kong YG, Deng YQ, Yang R, Hua QQ, Chen SM. Allergen immunotherapy enhances the immunosuppressive effects of Treg cells to alleviate allergic rhinitis by decreasing PU-1+ Treg cell numbers. Int Immunopharmacol 2022; 112:109187. [PMID: 36037652 DOI: 10.1016/j.intimp.2022.109187] [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: 07/08/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To investigate the role of Tregs and their subtypes in the treatment of allergic rhinitis with allergen immunotherapy (AIT) as well as the underlying mechanism. METHODS 1. Thirty-one healthy controls, 29 Allergic rhinitis (AR) patients and 16 AR patients treated with AIT were recruited. The total nasal symptom scores (TNSSs) were calculated. The serum levels of IgE, IL-2, TNF-α, IFN-γ, IL-4, IL-5, IL-6, IL-10 and IL-17 were measured. 2. Changes in the proportions of CD4+ T cells, Treg cells, Treg subtypes and Th1/Th2/Th9/Th17/Tfh cells in the peripheral blood of the subjects in the three groups were measured. 3. The correlations of Treg cells, Treg subtypes and TNSS with the levels of various cytokines in the AR group and AIT group were analysed. RESULTS 1. Compared with the control group, the TNSS and IgE, IL-5 and IL-6 levels in the AR group were significantly increased, while the IL-2, IFN-γ and IL-10 levels were significantly decreased (P < 0.05). Compared with the AR group, the TNSS and IgE, IL-5 and IL-6 levels in the AIT group were significantly decreased, while the IL-2, IFN-γ and IL-10 levels were significantly increased (P < 0.05). 2. Compared with the control group, the proportions of Tregs, GATA3+ Tregs and Th1 cells in the AR group were significantly reduced, while the proportions of PU-1+ Tregs, T-bet+ Tregs and Th2 cells were significantly increased (P < 0.05). Compared with the AR group, the proportions of Tregs and Th1 cells in the AIT group were significantly increased, while the proportions of PU-1+ Tregs and Th2 cells were decreased (P < 0.05). 3. Correlation analysis showed that Treg cell proportions were negatively correlated with the TNSS, sIgE levels, IL-5 levels and IL-6 levels but positively correlated with the IL-2 and IL-10 levels (P < 0.05). PU-1+ Treg cell proportions were positively correlated with the TNSS, sIgE levels, IL-5 levels and IL-6 levels but negatively correlated with the Treg cell proportions, IL-2 levels and IL-10 levels (P < 0.05). CONCLUSIONS AIT can reduce the proportions of PU-1+ Treg subtypes in AR patients. PU-1+ Treg cell numbers can potentially be used as an indicator to monitor the therapeutic effect of AIT on AR.
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Affiliation(s)
- Yue-Long Qiao
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Wo-Er Jiao
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Shan Xu
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Yong-Gang Kong
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Yu-Qin Deng
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Rui Yang
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Qing-Quan Hua
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China.
| | - Shi-Ming Chen
- Department of Otolaryngology-Head and Neck Surgery, Central Laboratory, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China.
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12
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Sun P, Huang R, Qin Z, Liu F. Influence of Tangeretin on the Exponential Regression of Inflammation and Oxidative Stress in Streptozotocin-Induced Diabetic Nephropathy. Appl Biochem Biotechnol 2022; 194:3914-3929. [PMID: 35567707 DOI: 10.1007/s12010-022-03920-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2022] [Indexed: 01/08/2023]
Abstract
Diabetes is an amalgamation of metabolic disorders marked by hyperglycemia. Over time diabetes brings up several other complications with it like cardiovascular disease, retinopathy, neuropathy, and nephropathy. among which diabetic nephropathy (DN) is the one we are concerned about in the present study. Diabetes management requires following a healthy lifestyle with proper medication. Most of the anti-diabetic drugs available at present come with adverse side effects. Nature has provided us with several components that are anti-diabetic in nature which has fewer or no side effects and tangeretin is one among them. Tangeretin is a natural flavonoid abundantly present in orange peel and tangerines. Our study is designed to evaluate tangeretin, as an anti-diabetic medication especially for patients suffering from diabetic nephropathy. The procured healthy rats were first divided into four groups: the group I was maintained as healthy control and the others were subjected to the induction of diabetes by i.p. injection of streptozotocin (STZ) at the concentration of 55mg/kg b.wt .Then, the diabetic rats were further divided into three groups: group II was used as the diabetic control rats and the group III and group IV were administered with tangeretin (25mg/kg b.wt) and positive control drug metformin (150mg/kg b.wt) for 8 weeks. The body weight, blood glucose, and serum insulin levels were estimated at week 0 and week 8. Reactive oxygen species (ROS) inhibitory effect, antioxidant, antilipidemic, nephroprotective, and anti-inflammatory effects of tangeretin on the diabetic-induced rats were evaluated at the end of week 8 in addition to the histopathological assessment of the sections of the kidneys of the experimental rats. All the test results concluded that tangeretin was able to significantly decelerate the progression of DN in STZ-induced diabetic rats.
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Affiliation(s)
- Pei Sun
- Department of Endocrinology, Central Hospital Affiliated to Shandong First Medical University, No. 105, Jiefang Road, Jinan City, Shandong, 250013, China
| | - Ran Huang
- Department of Kidney Disease Unit & Dialysis, Central Hospital Affiliated to Shandong First Medical University, No. 105, Jiefang Road, Jinan City, Shandong, 250013, China
| | - Zifu Qin
- Department of Health, Vertigo Examination Room, Central Hospital Affiliated to Shandong First Medical University, No. 105, Jiefang Road, Jinan City, Shandong, 250013, China
| | - Fang Liu
- Department of Kidney Disease Unit & Dialysis, Central Hospital Affiliated to Shandong First Medical University, No. 105, Jiefang Road, Jinan City, Shandong, 250013, China.
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13
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He YQ, Qiao YL, Xu S, Jiao WE, Yang R, Kong YG, Tao ZZ, Chen SM. Allergen induces CD11c+ dendritic cell autophagy to aggravate allergic rhinitis through promoting immune imbalance. Int Immunopharmacol 2022; 106:108611. [DOI: 10.1016/j.intimp.2022.108611] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/27/2022] [Accepted: 02/04/2022] [Indexed: 12/14/2022]
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14
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Chen Q, Wang D, Gu Y, Jiang Z, Zhou Z. Tangeretin prevents obesity by modulating systemic inflammation, fat browning, and gut microbiota in high-fat diet-induced obese C57BL/6 mice. J Nutr Biochem 2022; 101:108943. [PMID: 35017003 DOI: 10.1016/j.jnutbio.2022.108943] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 09/05/2021] [Accepted: 12/02/2021] [Indexed: 12/18/2022]
Abstract
Obesity and associated comorbidities are closely linked to gut microbiota dysbiosis, energy balance, and chronic inflammation. Tangeretin, a key citrus polymethoxylated flavone (PMF), is abundant in citrus fruits and has preventative and therapeutic effects for numerous diseases. The current study investigated the effects and possible mechanisms of tangeretin supplementation in preventing obesity in high-fat diet (HFD)-fed mice. Treatment of HFD-fed mice with tangeretin potently ameliorated HFD-induced body weight, liver steatosis, glucose intolerance, and insulin resistance. Tangeretin mitigated systemic chronic inflammation by reducing metabolic endotoxemia and inflammation-related gene expression in HFD-fed mice. An increased number of small brown adipocytes possessing multilocular and cytoplasmic lipid droplets and upregulation of thermogenic gene expression were observed after tangeretin treatment. 16S rRNA amplicon sequencing indicated that tangeretin markedly altered the gut microbiota composition (richness and diversity) and reversed 16 operational taxonomic units (OTUs) back to levels seen in mice consuming a normal chow diet (NCD). Notably, tangeretin decreased the ratio of Firmicutes-to-Bacteroidetes and greatly enriched Bacteroides and Lactobacillus. Overall, our results suggest that long-term supplementation with citrus tangeretin ameliorates the phenotype of obesity by improving adipose thermogenesis and reducing systemic inflammation and gut microbiota dysbiosis, which provides a good basis for studying the mechanism of tangeretin's beneficial effects.
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Affiliation(s)
- Qiyang Chen
- Key Laboratory of Horticulture Science for Southern Mountainous Regions of Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
| | - Dan Wang
- Key Laboratory of Horticulture Science for Southern Mountainous Regions of Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
| | - Yue Gu
- Key Laboratory of Horticulture Science for Southern Mountainous Regions of Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
| | - Zixiao Jiang
- Key Laboratory of Horticulture Science for Southern Mountainous Regions of Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China
| | - Zhiqin Zhou
- Key Laboratory of Horticulture Science for Southern Mountainous Regions of Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; The Southwest Institute of Fruits Nutrition, Banan District, Chongqing 400054, China.
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15
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Han L, Fu Q, Deng C, Luo L, Xiang T, Zhao H. Immunomodulatory potential of flavonoids for the treatment of autoimmune diseases and tumour. Scand J Immunol 2021. [DOI: 10.1111/sji.13106] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Limin Han
- Department of Pathophysiology Zunyi Medical University Zunyi China
- Department of Endocrinology People’s Hospital of Changshou Chongqing Chongqing China
| | - Qiang Fu
- Organ Transplantation Center Sichuan Academy of Medical Sciences and Sichuan Provincial People’s Hospital School of Medicine University of Electronic Science and Technology of China Chengdu China
| | - Chuan Deng
- Department of Neurology People’s Hospital of Changshou Chongqing Chongqing China
| | - Li Luo
- Department of Forensic Medicine Zunyi Medical University Zunyi China
| | - Tengxiao Xiang
- Department of Endocrinology People’s Hospital of Changshou Chongqing Chongqing China
| | - Hailong Zhao
- Department of Pathophysiology Zunyi Medical University Zunyi China
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16
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Jiao WE, Sun L, Xu S, Deng YQ, Qiao YL, Xi Y, Tao ZZ, Chen SM. Notch2 suppresses the development of allergic rhinitis by promoting FOXP3 expression and Treg cell differentiation. Life Sci 2021; 284:119922. [PMID: 34480930 DOI: 10.1016/j.lfs.2021.119922] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/16/2021] [Accepted: 08/24/2021] [Indexed: 01/15/2023]
Abstract
AIMS Notch signaling is closely related to a variety of diseases, but the role of Notch2 in allergic rhinitis (AR) remain unclear. This study was performed to investigate the effects of Notch2 on the differentiation of Treg cells and on the inflammatory response of AR. MATERIALS AND METHODS Peripheral blood (including 101 AR patients and 66 Controls) and nasal mucosa (including 19 AR patients and 17 Controls) were collected to detect the expression levels of Notch2, NICD2 and FOXP3. CD4+ T cells of human origin were selected to detect the effects of Notch2 on the differentiation of Treg cells and FOXP3. An AR mouse model was established, and lentiviruses overexpressing Notch2 were administered. Then, allergic symptoms, OVA-sIgE titers, nasal mucosal inflammation, Th1/Th2/Th17 cytokines and splenic Treg cells were assessed. KEY FINDINGS Compared with that in the Control group, the expression of Notch2 in the AR group was decreased, and Notch2 expression was negatively correlated with the degree of allergy (P < 0.01). The expression levels of Notch2, NICD2 and FOXP3 were decreased in the nasal mucosa of AR patients. Notch2 can promote the differentiation of human Treg cells in vitro (P < 0.05), and Notch2 can directly promote FOXP3 transcription. Animal experiments showed after the upregulation of Notch2 expression, the allergic inflammatory of mice with AR was reduced, the differentiation of Treg cells was increased, and the imbalance of T cells was reversed (P < 0.05). SIGNIFICANCE Notch2 promotes the differentiation of Treg cells by upregulating FOXP3 expression, thus significantly inhibiting the inflammatory response of AR.
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Affiliation(s)
- Wo-Er Jiao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Liu Sun
- Department of Otolaryngology-Head and Neck Surgery, General Hospital of The Central Theater Command of The People's Liberation Army, Wuhan 430070, Hubei, PR China
| | - Shan Xu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Yu-Qin Deng
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Yue-Long Qiao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Yang Xi
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Ze-Zhang Tao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China; Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Shi-Ming Chen
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China; Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China.
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Wang K, Zhu H, Yang L, Xu Q, Ren F, Liu X. [Inhibition of the Notch1/Jagged1 pathway promotes homing of bone mesenchymal stem cells to improve asthma in rats]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:1464-1472. [PMID: 34755661 DOI: 10.12122/j.issn.1673-4254.2021.10.04] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To explore the association of the Notch1/Jagged1 pathway with the homing of mesenchymal stem cells (BMSCs) to regulate Th1/Th2 drift in asthma. METHODS Twenty SD rats were randomly divided into normal control group, model group, BMSC transplantation group, and BMSC+Notch inhibitor group. Ovalbumin sensitization was used to establish rat models of asthma, and BMSCs were transplanted via the tail vein. The pathology of the lung tissue was examined with HE staining, and the contents of interleukin (IL)-5, IL-13, and interferon-γ (IFN-γ) in lung tissue homogenate were determined with enzyme-linked immunosorbent assay. The expressions of Notch1 and Jagged1 mRNA were detected with RT-PCR, and CXCR4 expression in the bronchial epithelial cells was examined using immunofluorescence staining; Western blotting was used to detect the protein expressions of T-bet, GATA-3, Notch1, and Jagged1 in the lung tissue. RESULTS Compared with those in the control group, the expressions of IFN-γ and T-bet proteins decreased significantly and the pulmonary expressions of IL-5, IL-13, and GATA-3 proteins as well as Notch1 and Jagged1 mRNA and protein expressions all increased significantly in the model group (P < 0.05 or 0.01). Compared with those in the model group, CXCR4, IFN-γ, and T-bet protein expressions in BMSC group and BMSCs+Notch inhibitor group all increased significantly, and Notch1 and Jagged1 protein expressions in BMSCs group and IL-5, IL-13, Notch1, and Jagged1 mRNA and protein expressions in BMSCs + Notch inhibitor group all decreased significantly (P < 0.05 or 0.01). The expressions of CXCR4 and IFN-γ were significantly higher and the expressions of IL-13 and Notch1 mRNA were significantly lower in BMSCs+Notch inhibitor group than in BMSC group (P < 0.05). CONCLUSION In asthmatic rats, the homing of the BMSCs to the lung tissue has a regulatory effect on Th1/Th2 drift, and the Notch1/Jagged1 pathway may participate in the homing of the BMSCs.
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Affiliation(s)
- K Wang
- Key Laboratory of Xin'an Medical Education Ministry, Hefei 230031, China.,Huixue Research Center (Anhui University of Chinese Medicine Branch), Hefei 230031, China.,School of Traditional Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - H Zhu
- First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, China
| | - L Yang
- Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Q Xu
- Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - F Ren
- Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - X Liu
- College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
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18
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Li X, Liu Z, Zhou W, Liu X, Cao W. Downregulation of CCL22 and mutated NOTCH1 in tongue and mouth floor squamous cell carcinoma results in decreased Th2 cell recruitment and expression, predicting poor clinical outcome. BMC Cancer 2021; 21:922. [PMID: 34391381 PMCID: PMC8364714 DOI: 10.1186/s12885-021-08671-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 08/08/2021] [Indexed: 02/08/2023] Open
Abstract
OBJECTIVE Tongue and mouth floor squamous cell carcinoma (T/MF SCC) exhibits a high rate of local recurrence and cervical lymph node metastasis. The effect of the tumor microenvironment on T/MF SCC remains unclear. MATERIALS AND METHODS Transcriptome and somatic mutation data of patients with T/MF SCC were obtained from HNSC projects of the Cancer Genome Atlas. Immune infiltration quantification in early- (clinical stage I-II) and advanced-stage (clinical stage III-IV) T/MF SCC was performed using single sample Gene Set Enrichment Analysis and MCPcounter. Differentially expressed gene data were filtered, and their function was assessed through Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses. Kaplan-Meier survival curve analysis and Cox regression model were conducted to evaluate the survival of patients with the CCL22 signature. Maftools was used to present the overview of somatic mutations. RESULTS In T/MF SCC, T helper (Th)2 cell counts were significantly increased in patients with early-stage disease compared to those with advanced-stage disease. Expression of the Th2 cell-related chemokine, CCL22, was downregulated in patients with advanced-stage T/MF SCC. Univariate and multivariate Cox analyses revealed that CCL22 was a good prognostic factor in T/MF SCC. A nomogram based on the expression of CCL22 was constructed to serve as a prognostic indicator for T/MF SCC. NOTCH1 mutations were found at a higher rate in patients with advanced-stage T/MF SCC than in those with early-stage T/MF SCC, resulting in the inhibition of the activation of the NOTCH1-Th2 cell differentiation pathway. The expression levels of CCL22, GATA-3, and IL4 were higher in patients with early-stage T/MF SCC than in those with advanced-stage T/MF SCC. CONCLUSION In T/MF SCC, high expression of CCL22 may promote the recruitment of Th2 cells and help predict a better survival. Mutations in NOTCH1 inhibit the differentiation of Th2 cells, facilitating tumor progression through a decrease in Th2 cell recruitment and differentiation.
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Affiliation(s)
- Xuejie Li
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China
| | - Zheqi Liu
- Department of Oral and Maxillofacial & Head and Neck, Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, People's Republic of China
- National Center for stomatology, National Clinical Research Center For Oral diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, People's Republic of China
| | - Wenkai Zhou
- Department of Oral and Maxillofacial & Head and Neck, Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, People's Republic of China
- National Center for stomatology, National Clinical Research Center For Oral diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, People's Republic of China
| | - Xiaofang Liu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People's Republic of China.
| | - Wei Cao
- Department of Oral and Maxillofacial & Head and Neck, Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, People's Republic of China.
- National Center for stomatology, National Clinical Research Center For Oral diseases, Shanghai Key Laboratory of Stomatology, Shanghai, 200011, People's Republic of China.
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19
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Chang Y, Zhai L, Peng J, Wu H, Bian Z, Xiao H. Phytochemicals as regulators of Th17/Treg balance in inflammatory bowel diseases. Biomed Pharmacother 2021; 141:111931. [PMID: 34328111 DOI: 10.1016/j.biopha.2021.111931] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/09/2021] [Accepted: 07/14/2021] [Indexed: 02/09/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory intestinal disorder that is difficult to cure and characterized by periods of relapse. To face the challenges of limited treatment strategies and drawbacks of conventional medications, developing new and promising strategies as well as safe and effective drugs for treatment of IBD has become an urgent demand for clinics. The imbalance of Th17/Treg is a crucial event for the development of IBD, and studies have verified that correcting the imbalance of Th17/Treg is an effective strategy for preventing and treating IBD. Recently, a growing body of studies has indicated that phytochemicals derived from natural products are potent regulators of Th17/Treg, and exert preferable protective benefits against colonic inflammation. In this review, the great potential of anti-colitis agents derived from natural products through targeting Th17/Treg cells and their action mechanisms for the treatment or prevention of IBD in recent research is summarized, which may help further the development of new drugs for IBD treatment.
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Affiliation(s)
- Yaoyao Chang
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, China
| | - Lixiang Zhai
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong
| | - Jiao Peng
- Department of Pharmacy, Peking University Shenzhen Hospital, Shenzhen, China
| | - Haiqiang Wu
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, China
| | - Zhaoxiang Bian
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong
| | - Haitao Xiao
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, China.
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20
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Contribution of Regulatory T Cell Methylation Modifications to the Pathogenesis of Allergic Airway Diseases. J Immunol Res 2021; 2021:5590217. [PMID: 34239942 PMCID: PMC8238596 DOI: 10.1155/2021/5590217] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 06/10/2021] [Indexed: 01/13/2023] Open
Abstract
Regulatory T (Treg) cells are a subtype of CD4+ T cells that play a significant role in the protection from autoimmunity and the maintenance of immune tolerance via immune regulation. Epigenetic modifications of Treg cells (i.e., cytosine methylation at the promoter region of the transcription factor, Forkhead Box P3) have been found to be closely associated with allergic diseases, including allergic rhinitis, asthma, and food allergies. In this study, we highlighted the recent evidence on the contribution of epigenetic modifications in Treg cells to the pathogenesis of allergic diseases. Moreover, we also discussed directions for future clinical treatment approaches, with a particular emphasis on Treg cell-targeted therapies for allergic disorders.
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21
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Chlorogenic acid ameliorated allergic rhinitis-related symptoms in mice by regulating Th17 cells. Biosci Rep 2021; 40:226575. [PMID: 33015714 PMCID: PMC7607190 DOI: 10.1042/bsr20201643] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/14/2020] [Accepted: 09/02/2020] [Indexed: 02/08/2023] Open
Abstract
Allergic rhinitis (AR) is a non-infectious chronic inflammatory disease of nasal mucosa provoking T helper cell (Th) 17 response. Chlorogenic acid (CGA), one of the most abundant polyphenol compounds in various agricultural products, possesses antiviral, anti-inflammatory, and antibacterial properties. However, the effect of CGA on AR is unclear. Thus, our study explored the effect of CGA in modulating AR-related symptoms and immunoreaction, especially Th17 response. AR mice were induced by ovalbumin (OVA) administration and further treated with CGA or dexamethasone (Dex). The frequencies of rubbing and sneezing of AR mice were recorded. Histopathological analysis of nasal mucosa was conducted by Hematoxylin–Eosin and Periodic acid–Schiff stainings. The serum and nasal mucosa levels of OVA-immunoglobulin (Ig)E, interferon (IFN)-γ, retinoic acid-associated nuclear orphan receptor (ROR)-γt, and interleukin (IL)-17A were measured by enzyme-linked immunosorbent assay, quantitative reverse-transcription polymerase chain reaction (qRT-PCR), or Western blot. The ratio of CD4+IL-17+Th17 cells to CD4+ T cells in peripheral blood of AR mice was assessed by flow cytometer. CGA diminished the frequencies of rubbing and sneezing of AR mice in a concentration-dependent manner. CGA attenuated histopathological abnormalities and decreased goblet cell number in nasal mucosa of AR mice. CGA decreased the serum levels of OVA-IgE, ROR-γt, and IL-17A, while increasing the serum level of IFN-γ in AR mice. Meanwhile, CGA decreased the ratio of CD4+IL-17+Th17 cells to CD4+T cells in peripheral blood and the mRNA and protein levels of IL-17A and ROR-γt in AR mice. CGA ameliorated AR-related symptoms in mice by regulating Th17 cells, which could be a candidate for the treatment of AR.
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22
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Therapeutic Implications of a Polymethoxylated Flavone, Tangeretin, in the Management of Cancer via Modulation of Different Molecular Pathways. Adv Pharmacol Pharm Sci 2021; 2021:4709818. [PMID: 33748757 PMCID: PMC7954633 DOI: 10.1155/2021/4709818] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 01/25/2021] [Accepted: 02/25/2021] [Indexed: 12/27/2022] Open
Abstract
Chemotherapeutics can induce oxidative stress, inflammation, apoptosis, mitochondrial dysfunction, and abnormalities in neurotransmitter metabolism leading to toxicity. Because there have been no therapeutic strategies developed to target inflammation and oxidative stress, there is a continuing need for new and improved therapy. As a result, there has been increasing interest in complementary and alternative medicine with anticancer potential. Studies have shown that the antioxidant activities and anti-inflammatory effects of citrus fruits are promising natural phytochemicals in the development of new anticancer agents. Tangeretin is a naturally polymethoxylated flavone compound extracted from the citrus peel that has shown significant intestinal absorption and adequate bioavailability, with the added benefit of promoting longevity. In addition, tangeretin is known to exhibit considerable selective toxicity to many types of cancer cell proliferation such as ovarian, brain, blood, and skin cancer. Evidence indicates that tangeretin acts through several mechanisms including growth inhibition, induction of apoptosis, autophagy, antiangiogenesis, and estrogenic-like effects. Furthermore, tangeretin works through mitigating levels of inflammatory mediators in the immune system. Using tangeretin in combination with clinically applied anticancer drugs could be a good strategy for increasing the efficiency of these agents and protecting noncancerous cells from damage caused by chemotherapy. The purpose of this review is to highlight the protective effects of a novel natural product, tangeretin against chemotherapeutic-induced toxicity. The development of chemoprevention strategies can lead to significant health care improvement in cancer survivors. Thus, study outcomes may attract more investigators to conduct tangeretin-related research and find out potentially significant impacts on health care of cancer patients and decreased health problems associated with chemotherapeutics-induced toxicity.
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23
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Zhu H, Wang K, Yang L, Xu Q, Ren F, Liu X. [ Yanghe Pingchuan granule promotes BMSCs homing in asthmatic rats by upregulating miR-139-5p and downregulating Notch1/Hes1 pathway]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 40:1703-1711. [PMID: 33380402 DOI: 10.12122/j.issn.1673-4254.2020.12.02] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE To observe the effect of Yanghe Pingchuan (YHPC) granule on miR-139-5p, Notch1/Hes1 pathway and homing of bone marrow-derived mesenchymal stem cells (BMSCs) in asthmatic rats. METHODS Fifty SD rats were randomized divided into normal control (NC) group, asthmatic model group, BMSCs transplantation group, BMSCs + dexamethasone (0.0625 mg/kg daily) group, and BMSCs+YHPC granule (3.5 g/kg daily) group. In all but the normal control group, asthmatic rat models were established by ovalbumin challenge, and BMSCs (1×106/mL) transplantation via the tail vein was performed in the latter 3 groups on last day of ovalbumin challenge. In all the groups, lung pathologies of the rats were evaluated using HE staining after the treatments. Flow cytometry was employed to detect pulmonary expression of CXCR4 protein, and ELISA was used to determine the expressions of interferon-γ (IFN-γ) and interleukin-4 (IL-4) in the lung tissue. The expressions of CXCR4, Notch1 and Hes1 in bronchial epithelial cells was examined using immunofluorescence assay. RT-PCR was used to detect the expressions of miR-139-5p, Notch1, Jagged1, RBP-J and Hes1 mRNAs, and the protein expressions of Notch1, Jagged1 and Hes1 were detected with Western blotting. RESULTS Compared with the normal control rats, the asthmatic rats exhibited significantly increased expressions of CXCR4, IL-4, Notch1, Jagged1, RBP-J, and Hes1 mRNA and Notch1, Jagged1, and Hes1 proteins and lowered expressions of INF-γ mRNA and miR-139-5p in the lung tissues (P < 0.05 or 0.01). Compared with those in the asthmatic model group, the mRNA expressions of CXCR4, IFN-γ, and miR-139-5p increased and the expressions of IL-4, Notch1, Jagged1, RBP-J, and Hes1 mRNA and Notch1, Jagged1, and Hes1 proteins decreased significantly in the 3 groups with BMSCs transplantation (P < 0.05 or 0.01). The rats in BMSCs+YHPC granule group showed significantly higher CXCR4, IFN-γ, and miR-139-5p mRNA expressions and lower IL-4 and Notch1 mRNA expressions than those in BMSCs transplantation group (P < 0.05). CONCLUSIONS YHPC granule can enhance the inhibitory effect of BMSCs homing on Th2 inflammatory response in asthmatic rats by up-regulating miR-139-5p and down-regulating Notch1/Hes1 pathway.
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Affiliation(s)
- Huizhi Zhu
- Department of Respiratory Medicine, First Affiliated Hospital of Anhui University of Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Kun Wang
- Graduate School, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Lei Yang
- Graduate School, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Qingwen Xu
- Graduate School, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Fengchun Ren
- Graduate School, Anhui University of Chinese Medicine, Hefei 230031, China
| | - Xiangguo Liu
- College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230031, China
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24
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The regulatory role of SFRP5/WNT5A axis in allergic rhinitis through inhibiting JNK pathway activation and lowering mucin generation in human nasal epithelial cells. Exp Mol Pathol 2020; 118:104591. [PMID: 33285209 DOI: 10.1016/j.yexmp.2020.104591] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 09/17/2020] [Accepted: 12/01/2020] [Indexed: 12/29/2022]
Abstract
Allergic rhinitis (AR) is tightly associated with type 2 inflammation. SFRP5 combined with WNT5A mainly inhibits chronic inflammatory response, atherosclerosis, and other metabolic disorders. However, the effect of SFRP5/WNT5A axis on recombinant human interleukin-13 (rhIL-13)-induced inflammation has not been studied. In this study, we aimed to investigate whether secreted frizzled-related protein 5 (SFRP5) could modulate the production of cytokines relevant to eosinophil infiltration and mucin secretion through blocking the activation of Wnt family 5A (WNT5A) signaling pathway. A mouse model of AR demonstrated low expression of SFRP5 and high expression of WNT5A, and indicated that the number of eosinophil and goblet cells was increased, concomitant with elevated IL-13, colony stimulating factor 2 (CSF2), chemokine ligand 11 (CCL11), Mucin 4, and Mucin 5AC levels. Furthermore, lentivirus-SFRP5 overexpression up-regulated the expression of SFRP5 but down-regulated WNT5A level, and inhibited the activation of JNK pathway via decreasing p-JNK1/2 (Thr183/Tyr185) and p-c-Jun (Ser73) protein expressions in rhIL-13-treated human nasal epithelial cells (HNEpCs). Noticeably, SFRP5 overexpression markedly reduced rhIL-13-induced inflammatory protein and mucin generation through lowered CSF2, CCL11, Mucin 4, as well as Mucin 5AC levels. Taken together, these findings confirmed the regulatory role of SFRP5/WNT5A axis in rhIL-13-mediated inflammatory response in HNEpCs.
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25
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Dey DK, Chang SN, Vadlamudi Y, Park JG, Kang SC. Synergistic therapy with tangeretin and 5-fluorouracil accelerates the ROS/JNK mediated apoptotic pathway in human colorectal cancer cell. Food Chem Toxicol 2020; 143:111529. [PMID: 32619557 DOI: 10.1016/j.fct.2020.111529] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/05/2020] [Accepted: 06/12/2020] [Indexed: 12/24/2022]
Abstract
Synergistic therapy is emerging as a promising strategy for improving the chemotherapeutic efficacy of anticancer drugs. Addition of adjuvants with standard anticancer drugs has shown successful reduction of adverse side effects. The synthetic drug 5-Fluorouracil (5-FU) shows several side effects upon prolonged chemotherapy, thereby restricting its long-term clinical application. Several studies have reported anticancer potential and anti-inflammatory activity of tangeretin (TAN) towards mammalian cells. Therefore, we investigate whether the combination of TAN with 5-FU increases their anticancer potential against colorectal cancer. In this study, we examined the synergistic activity of TAN and 5-FU on the viability of several human cancer and normal cells. Several possible mechanistic pathways were screened, and found that co-exposure of TAN and 5-FU accelerates oxidative-stress and increases endogenous-ROS generation, which sequentially triggers the DNA damage response and activates the apoptotic pathway, by down-regulating autophagy and DNA repair system in HCT-116 cells. TAN and 5-FU co-treatment also remarkably reduces the mitochondrial membrane potential, and sequentially decreases ATPase activity. Collectively, results indicate that combination of TAN and 5-FU significantly accelerates apoptosis via JNK mediated pathway. To our knowledge gained from literature, this study is the first to describe synergistic activity of TAN and 5-FU against colorectal cancer cells.
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Affiliation(s)
- Debasish Kumar Dey
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea
| | - Sukkum Ngullie Chang
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea
| | | | - Jae Gyu Park
- Advanced Bio Convergence Center, Pohang Technopark Foundation, Pohang, Gyeongbuk, 37668, Republic of Korea.
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, 38453, Republic of Korea.
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26
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Ashrafizadeh M, Ahmadi Z, Mohammadinejad R, Ghasemipour Afshar E. Tangeretin: a mechanistic review of its pharmacological and therapeutic effects. J Basic Clin Physiol Pharmacol 2020; 31:/j/jbcpp.ahead-of-print/jbcpp-2019-0191/jbcpp-2019-0191.xml. [PMID: 32329752 DOI: 10.1515/jbcpp-2019-0191] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 10/07/2019] [Indexed: 06/11/2023]
Abstract
To date, a large number of synthetic drugs have been developed for the treatment and prevention of different disorders, such as neurodegenerative diseases, diabetes mellitus, and cancer. However, these drugs suffer from a variety of drawbacks including side effects and low efficacy. In response to this problem, researchers have focused on the plant-derived natural products due to their valuable biological activities and low side effects. Flavonoids consist of a wide range of naturally occurring compounds exclusively found in fruits and vegetables and demonstrate a number of pharmacological and therapeutic effects. Tangeretin (TGN) is a key member of flavonoids that is extensively found in citrus peels. It has different favorable biological activities such as antioxidant, anti-inflammatory, antitumor, hepatoprotective, and neuroprotective effects. In the present review, we discuss the various pharmacological and therapeutic effects of TGN and then, demonstrate how this naturally occurring compound affects signaling pathways to exert its impacts.
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Affiliation(s)
- Milad Ashrafizadeh
- Department of Basic Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran, Phone: +989032360639
| | - Zahra Ahmadi
- Department of Basic Science, Faculty of Veterinary Medicine, Islamic Azad Branch, University of Shushtar, Khuzestan, Iran
| | - Reza Mohammadinejad
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Elham Ghasemipour Afshar
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
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