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Liu W, Zhu Y, Yan H, Ren L, Chen J. Nicotine plays a protective role in rats with induced viral pneumonia with polyinosinic-polycytidylic acid through α7nAChR. Heliyon 2023; 9:e21667. [PMID: 38027680 PMCID: PMC10656239 DOI: 10.1016/j.heliyon.2023.e21667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 10/25/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Objective To study the effect of nicotine in rat model of pneumonia induced by polyinosinic-polycytidylic acid [Poly (I:C)] and explore the underlying mechanism. Methods Twenty-four healthy adult male Sprague-Dawley (SD) rats (200-250 g) were randomly divided into normal saline control group (NS group); Poly (I:C) group; nicotine group (NIC group); and α7 nicotinic acetylcholine receptor (α7nAChR) antagonist group (α-BGT group) (n = 6 each). Rats in the Poly (I: C), NIC, and α-BGT groups were administered 1.5 mg/mL 100 μL Poly (I:C) intranasally to establish pneumonia model. In α-BGT group, 1 μg/kg α-bungarotoxin (α-BGT) was intraperitoneally injected 45 min before intranasal Poly (I:C), and 400 μg/kg nicotine was intraperitoneally injected 15 min after α-BGT injection. The NIC group received an equal volume of NS in place of α-BGT while the other treatments were same. The Poly (I:C) group received equal volume of NS in place of nicotine while the other treatments were same as in NIC group. In the NS group, only NS was administered at all three time points. PaCO2, PaO2, and PaO2/FiO2 levels were determined 24 h after administration of Poly (I:C). After euthanization, rat lung tissues were extracted for pathological examination, and wet weight/dry weight (W/D ratio) was determined. Expression of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, IL-1β, and interferon (IFN)-γ in lung tissue was determined by ELISA. q-PCR was used to detect nuclear factor kappa-B P65 (NF-κBP65). Results Compared with NS group, Poly (I:C) and α-BGT groups showed significantly increased W/D ratio, PaCO2, TNF-α, IL-6, IL-1β, and IFN-γ content, NF-κB P65 expression, and reduced PaO2 and PaO2/FiO2 (p < 0.05), along with obvious signs of pathological injury. Nicotine pre-treatment reduced W/D ratio, PaCO2, proinflammatory cytokines, NF-κBP65 expression, and increased PaO2 and PaO2/FiO2 levels. The above effects were negated in α-BGT group. Conclusion Pre-administration of nicotine improved Poly (I:C)-induced pneumonia by activating the cholinergic anti-inflammatory pathway.
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Affiliation(s)
- Wei Liu
- Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Yi Zhu
- Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Hong Yan
- Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Lingyun Ren
- Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
| | - Jingli Chen
- Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, China
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Guo X, He C, Xin S, Gao H, Wang B, Liu X, Zhang S, Gong F, Yu X, Pan L, Sun F, Xu J. Current perspective on biological properties of plasmacytoid dendritic cells and dysfunction in gut. Immun Inflamm Dis 2023; 11:e1005. [PMID: 37773693 PMCID: PMC10510335 DOI: 10.1002/iid3.1005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 08/27/2023] [Accepted: 08/30/2023] [Indexed: 10/01/2023] Open
Abstract
Plasmacytoid dendritic cells (pDCs), a subtype of DC, possess unique developmental, morphological, and functional traits that have sparked much debate over the years whether they should be categorized as DCs. The digestive system has the greatest mucosal tissue overall, and the pDC therein is responsible for shaping the adaptive and innate immunity of the gastrointestinal tract, resisting pathogen invasion through generating type I interferons, presenting antigens, and participating in immunological responses. Therefore, its alleged importance in the gut has received a lot of attention in recent years, and a fresh functional overview is still required. Here, we summarize the current understanding of mouse and human pDCs, ranging from their formation and different qualities compared with related cell types to their functional characteristics in intestinal disorders, including colon cancer, infections, autoimmune diseases, and intestinal graft-versus-host disease. The purpose of this review is to convey our insights, demonstrate the limits of existing research, and lay a theoretical foundation for the rational development and use of pDCs in future clinical practice.
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Affiliation(s)
- Xueran Guo
- Department of Clinical Medicine, Beijing An Zhen HospitalCapital Medical UniversityBeijingChina
| | - Chengwei He
- Department of Physiology and Pathophysiology, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Shuzi Xin
- Department of Physiology and Pathophysiology, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Han Gao
- Department of Physiology and Pathophysiology, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
- Department of Clinical Laboratory, Aerospace Center HospitalPeking UniversityBeijingChina
| | - Boya Wang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing)Peking University Cancer Hospital & InstituteBeijingChina
| | - Xiaohui Liu
- Department of Physiology and Pathophysiology, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Sitian Zhang
- Department of Clinical Medicine, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Fengrong Gong
- Department of Clinical Medicine, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Xinyi Yu
- Department of Clinical Medicine, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Luming Pan
- Department of Clinical Medicine, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
| | - Fangling Sun
- Department of Laboratory Animal Research, Xuan Wu HospitalCapital Medical UniversityBeijingChina
| | - Jingdong Xu
- Department of Physiology and Pathophysiology, School of Basic Medical SciencesCapital Medical UniversityBeijingChina
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3
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Mukherjee S, Skrede S, Haugstøyl M, López M, Fernø J. Peripheral and central macrophages in obesity. Front Endocrinol (Lausanne) 2023; 14:1232171. [PMID: 37720534 PMCID: PMC10501731 DOI: 10.3389/fendo.2023.1232171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/28/2023] [Indexed: 09/19/2023] Open
Abstract
Obesity is associated with chronic, low-grade inflammation. Excessive nutrient intake causes adipose tissue expansion, which may in turn cause cellular stress that triggers infiltration of pro-inflammatory immune cells from the circulation as well as activation of cells that are residing in the adipose tissue. In particular, the adipose tissue macrophages (ATMs) are important in the pathogenesis of obesity. A pro-inflammatory activation is also found in other organs which are important for energy metabolism, such as the liver, muscle and the pancreas, which may stimulate the development of obesity-related co-morbidities, including insulin resistance, type 2 diabetes (T2D), cardiovascular disease (CVD) and non-alcoholic fatty liver disease (NAFLD). Interestingly, it is now clear that obesity-induced pro-inflammatory signaling also occurs in the central nervous system (CNS), and that pro-inflammatory activation of immune cells in the brain may be involved in appetite dysregulation and metabolic disturbances in obesity. More recently, it has become evident that microglia, the resident macrophages of the CNS that drive neuroinflammation, may also be activated in obesity and can be relevant for regulation of hypothalamic feeding circuits. In this review, we focus on the action of peripheral and central macrophages and their potential roles in metabolic disease, and how macrophages interact with other immune cells to promote inflammation during obesity.
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Affiliation(s)
- Sayani Mukherjee
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
- Mohn Center for Diabetes Precision Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Physiology, CIMUS, University of Santiago de Compostela, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Santiago de Compostela, Spain
| | - Silje Skrede
- Department of Clinical Science, Faculty of Medicine, University of Bergen, Bergen, Norway
- Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
| | - Martha Haugstøyl
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
- Mohn Center for Diabetes Precision Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Miguel López
- Department of Physiology, CIMUS, University of Santiago de Compostela, Santiago de Compostela, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Santiago de Compostela, Spain
| | - Johan Fernø
- Hormone Laboratory, Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
- Mohn Center for Diabetes Precision Medicine, Department of Clinical Science, University of Bergen, Bergen, Norway
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Ma N, Xu E, Luo Q, Song G. Rac1: A Regulator of Cell Migration and A Potential Target for Cancer Therapy. Molecules 2023; 28:molecules28072976. [PMID: 37049739 PMCID: PMC10096471 DOI: 10.3390/molecules28072976] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/24/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
Cell migration is crucial for physiological and pathological processes such as morphogenesis, wound repair, immune response and cancer invasion/metastasis. There are many factors affecting cell migration, and the regulatory mechanisms are complex. Rac1 is a GTP-binding protein with small molecular weight belonging to the Rac subfamily of the Rho GTPase family. As a key molecule in regulating cell migration, Rac1 participates in signal transduction from the external cell to the actin cytoskeleton and promotes the establishment of cell polarity which plays an important role in cancer cell invasion/metastasis. In this review, we firstly introduce the molecular structure and activity regulation of Rac1, and then summarize the role of Rac1 in cancer invasion/metastasis and other physiological processes. We also discuss the regulatory mechanisms of Rac1 in cell migration and highlight it as a potential target in cancer therapy. Finally, the current state as well as the future challenges in this area are considered. Understanding the role and the regulatory mechanism of Rac1 in cell migration can provide fundamental insights into Rac1-related cancer progression and further help us to develop novel intervention strategies for cancer therapy in clinic.
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Nadwa EH, Al-Kuraishy HM, Al-Gareeb AI, Elekhnawy E, Albogami SM, Alorabi M, Batiha GES, De Waard M. Cholinergic dysfunction in COVID-19: frantic search and hoping for the best. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:453-468. [PMID: 36460816 PMCID: PMC9735034 DOI: 10.1007/s00210-022-02346-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/18/2022] [Indexed: 12/05/2022]
Abstract
A novel coronavirus known as severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) is a potential cause of acute respiratory infection called coronavirus disease 2019 (COVID-19). The binding of SARS-CoV-2 with angiotensin-converting enzyme 2 (ACE2) induces a series of inflammatory cellular events with cytopathic effects leading to cell injury and hyperinflammation. Severe SARS-CoV-2 infection may lead to dysautonomia and sympathetic storm due to dysfunction of the autonomic nervous system (ANS). Therefore, this review aimed to elucidate the critical role of the cholinergic system (CS) in SARS-CoV-2 infection. The CS forms a multi-faceted network performing diverse functions in the body due to its distribution in the neuronal and non-neuronal cells. Acetylcholine (ACh) acts on two main types of receptors which are nicotinic receptors (NRs) and muscarinic receptors (MRs). NRs induce T cell anergy with impairment of antigen-mediated signal transduction. Nicotine through activation of T cell NRs inhibits the expression and release of the pro-inflammatory cytokines. NRs play important anti-inflammatory effects while MRs promote inflammation by inducing the release of pro-inflammatory cytokines. SARS-CoV-2 infection can affect the morphological and functional stability of CS through the disruption of cholinergic receptors. SARS-CoV-2 spike protein is similar to neurotoxins, which can bind to nicotinic acetylcholine receptors (nAChR) in the ANS and brain. Therefore, cholinergic receptors mainly nAChR and related cholinergic agonists may affect the pathogenesis of SARS-CoV-2 infection. Cholinergic dysfunction in COVID-19 is due to dysregulation of nAChR by SARS-CoV-2 promoting the central sympathetic drive with the development of the sympathetic storm. As well, nAChR activators through interaction with diverse signaling pathways can reduce the risk of inflammatory disorders in COVID-19. In addition, nAChR activators may mitigate endothelial dysfunction (ED), oxidative stress (OS), and associated coagulopathy in COVID-19. Similarly, nAChR activators may improve OS, inflammatory changes, and cytokine storm in COVID-19. Therefore, nAChR activators like varenicline in virtue of its anti-inflammatory and anti-oxidant effects with direct anti-SARS-CoV-2 effect could be effective in the management of COVID-19.
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Affiliation(s)
- Eman Hassan Nadwa
- Department of Pharmacology and Therapeutics, College of Medicine, Jouf University, Sakakah, 72345 Saudi Arabia
- Department of Medical Pharmacology, Faculty of Medicine, Cairo University, Giza, 12613 Egypt
| | - Hayder M. Al-Kuraishy
- Department of Pharmacology, Toxicology and Medicine, College of Medicine, Al-Mustansiriyah University, Baghdad, 14132 Iraq
| | - Ali I. Al-Gareeb
- Department of Pharmacology, Toxicology and Medicine, College of Medicine, Al-Mustansiriyah University, Baghdad, 14132 Iraq
| | - Engy Elekhnawy
- Microbiology and Immunology Department, Faculty of Pharmacy, Tanta University, Tanta, 31527 Egypt
| | - Sarah M. Albogami
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif, 21944 Saudi Arabia
| | - Mohammed Alorabi
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif, 21944 Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511 Al Beheira Egypt
| | - Michel De Waard
- Smartox Biotechnology, 6 Rue Des Platanes, 38120 Saint-Egrève, France
- L’Institut du Thorax, INSERM, CNRS, UNIV NANTES, 44007 Nantes, France
- LabEx “Ion Channels, Science & Therapeutics”, Université de Nice Sophia-Antipolis, 06560 Valbonne, France
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Liu X, Chen S, Liu H, Xie J, Hasan KMF, Zeng Q, Wei S, Luo P. Structural properties and anti-inflammatory activity of purified polysaccharides from Hen-of-the-woods mushrooms ( Grifola frondosa). Front Nutr 2023; 10:1078868. [PMID: 36824172 PMCID: PMC9941675 DOI: 10.3389/fnut.2023.1078868] [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: 10/24/2022] [Accepted: 01/11/2023] [Indexed: 02/10/2023] Open
Abstract
Grifola frondosa is an edible medicinal mushroom that has been proven to have a variety of health benefits. The main active ingredients of this mushroom are polysaccharides. In this study, ultrasonic-assisted extraction was used to obtain crude Grifola frondosa polysaccharides (GFPs). Then, purified GFP was obtained after purification. The optimum extraction conditions were an extraction time of 71 min, an extraction temperature of 90°C in a solid-to-liquid ratio of 1:37 g/mL, and an ultrasonic power of 500 W. GFP was purified using DEAE-52 and Sephadex G-100. The structural characterization of GFP was performed using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), ion chromatography (IC), and ultraviolet (UV) visible photometry. The morphology of GFP was analyzed by scanning electron microscopy (SEM), thermogravimetric differential scanning calorimetry (TG-DSC), and Congo red testing. In addition, the administration of GFP in oxazolone (OXZ)-induced ulcerative colitis (UC) in mice was found to prevent weight loss. Different doses of GFP (80, 160, and 320 mg/kg body weight) were used, and sulfapyridine (SASP) was used as a positive control (370 mg/kg body weight) for the treatment of OXZ-induced UC. After treatment, the mice were killed, and blood and colon tissue samples were collected. GFP was found to prevent decreases in colon length and the levels of leukocytes, platelets, and neutrophils in UC mice. Moreover, GFP also decreased the expression of pro-inflammatory cytokines [tumor necrosis factor (TNF)-α and interleukin (IL)-1 β], increased IL-10, and reduced colon injury in UC mice. The results showed that Under these conditions, the predicted polysaccharide yield was 21.72%, and the actual extraction rate was 21.13%. The polysaccharide composition (molar ratio) was composed of fucose (0.025), glucosamine hydrochloride (0.004), galactose (0.063), glucose (0.869), and mannose (0.038). GFP was also found to have a typical absorption peak, and the GFP extracted using the ultrasound-assisted extraction protocol was mainly β-glucan. These results indicate that ultrasound-assisted extraction of GFP could reduce OXZ-induced intestinal inflammation as a promising candidate for the treatment of UC, with the potential for development as a food supplement to improve intestinal diseases.
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Affiliation(s)
- Xiaoyi Liu
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Guizhou Medical University, Guiyang, China
| | - Shuai Chen
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Guizhou Medical University, Guiyang, China
| | - Huijuan Liu
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Guizhou Medical University, Guiyang, China
| | - Jiao Xie
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Guizhou Medical University, Guiyang, China
| | - K. M. Faridul Hasan
- Simonyi Károly Faculty of Engineering, University of Sopron, Sopron, Hungary
| | - Qibing Zeng
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Guizhou Medical University, Guiyang, China
| | - Shaofeng Wei
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Guizhou Medical University, Guiyang, China,*Correspondence: Shaofeng Wei,
| | - Peng Luo
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Guizhou Medical University, Guiyang, China,Peng Luo,
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Li X, Zhang M, Zhou G, Xie Z, Wang Y, Han J, Li L, Wu Q, Zhang S. Role of Rho GTPases in inflammatory bowel disease. Cell Death Dis 2023; 9:24. [PMID: 36690621 PMCID: PMC9871048 DOI: 10.1038/s41420-023-01329-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/08/2023] [Accepted: 01/11/2023] [Indexed: 01/24/2023]
Abstract
Rat sarcoma virus homolog (Rho) guanosine triphosphatases (GTPases) function as "molecular switch" in cellular signaling regulation processes and are associated with the pathogenesis of inflammatory bowel disease (IBD). This chronic intestinal tract inflammation primarily encompasses two diseases: Crohn's disease and ulcerative colitis. The pathogenesis of IBD is complex and considered to include four main factors and their interactions: genetics, intestinal microbiota, immune system, and environment. Recently, several novel pathogenic components have been identified. In addition, potential therapies for IBD targeting Rho GTPases have emerged and proven to be clinically effective. This review mainly focuses on Rho GTPases and their possible mechanisms in IBD pathogenesis. The therapeutic possibility of Rho GTPases is also discussed.
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Affiliation(s)
- Xiaoling Li
- grid.12981.330000 0001 2360 039XDivision of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Mudan Zhang
- grid.12981.330000 0001 2360 039XDivision of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Gaoshi Zhou
- grid.12981.330000 0001 2360 039XDivision of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Zhuo Xie
- grid.12981.330000 0001 2360 039XDivision of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Ying Wang
- grid.12981.330000 0001 2360 039XDivision of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Jing Han
- grid.12981.330000 0001 2360 039XDivision of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Li Li
- grid.12981.330000 0001 2360 039XDivision of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Qirui Wu
- grid.12981.330000 0001 2360 039XDivision of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Shenghong Zhang
- grid.12981.330000 0001 2360 039XDivision of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
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Cavalu S, Sharaf H, Saber S, Youssef ME, Abdelhamid AM, Mourad AAE, Ibrahim S, Allam S, Elgharabawy RM, El-Ahwany E, Amin NA, Shata A, Eldegla M, Atef M, Aboraya M, Mohamed M, Anz N, Elmotelb DA, Gabr F, Elzablawy D, Hamada M, Yehia A, Osama D, Mohammed OA. Ambroxol, a mucolytic agent, boosts HO-1, suppresses NF-κB, and decreases the susceptibility of the inflamed rat colon to apoptosis: A new treatment option for treating ulcerative colitis. FASEB J 2022; 36:e22496. [PMID: 35947115 DOI: 10.1096/fj.202200749r] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/05/2022] [Accepted: 08/01/2022] [Indexed: 11/11/2022]
Abstract
Ulcerative colitis (UC) is a chronic inflammatory bowel disease of unknown etiology that increases the risk of developing colorectal cancer and imposes a lifelong healthcare burden on millions of patients worldwide. Current treatment strategies are associated with significant risks and have been shown to be fairly effective. Hence, discovering new therapies that have better efficacy and safety profiles than currently exploited therapeutic strategies is challenging. It has been well delineated that NF-κB/Nrf2 crosstalk is a chief player in the interplay between oxidative stress and inflammation. Ambroxol hydrochloride, a mucolytic agent, has shown antioxidant and anti-inflammatory activity in humans and animals and has not yet been examined for the management of UC. Therefore, our approach was to investigate whether ambroxol could be effective to combat UC using the common acetic acid rat model. Interestingly, a high dose of oral ambroxol (200 mg/kg/day) reasonably improved the microscopic and macroscopic features of the injured colon. This was linked to low disease activity and a reduction in the colonic weight/length ratio. In the context of that, ambroxol boosted Nrf2 activity and upregulated HO-1 and catalase to augment the antioxidant defense against oxidative damage. Besides, ambroxol inactivated NF-κB signaling and its consequent target pro-inflammatory mediators, IL-6 and TNF-α. In contrast, IL-10 is upregulated. Consistent with these results, myeloperoxidase activity is suppressed. Moreover, ambroxol decreased the susceptibility of the injured colon to apoptosis. To conclude, our findings highlight the potential application of ambroxol to modify the progression of UC by its anti-inflammatory, antioxidant, and antiapoptotic properties.
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Affiliation(s)
- Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
| | - Hossam Sharaf
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mahmoud E Youssef
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Amir Mohamed Abdelhamid
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Ahmed A E Mourad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Port Said University, Port Said, Egypt
| | - Samar Ibrahim
- Department of Pharmacy Practice, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Shady Allam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Menoufia University, Menoufia, Egypt
| | | | - Eman El-Ahwany
- Department of Immunology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Noha A Amin
- Department of Haematology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Ahmed Shata
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mai Eldegla
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Marina Atef
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Maii Aboraya
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Mayar Mohamed
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Niera Anz
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Dina Abd Elmotelb
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Fayrouz Gabr
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Dalia Elzablawy
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Menna Hamada
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Amr Yehia
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Dalia Osama
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
| | - Osama A Mohammed
- Department of Clinical Pharmacology, Faculty of Medicine, Ain Shams University, Cairo, Egypt.,Department of Clinical Pharmacology, Faculty of medicine, Bisha University, Bisha, Saudi Arabia
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9
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Kadowaki M, Yamamoto T, Hayashi S. Neuro-immune crosstalk and food allergy: Focus on enteric neurons and mucosal mast cells. Allergol Int 2022; 71:278-287. [PMID: 35410807 DOI: 10.1016/j.alit.2022.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Indexed: 12/12/2022] Open
Abstract
The nervous system and the immune system individually play important roles in regulating the processes necessary to maintain physiological homeostasis, respond to acute stress and protect against external threats. These two regulating systems for maintaining the living body had often been assumed to function independently. Allergies develop as a result of an overreaction of the immune system to substances that are relatively harmless to the body, such as food, pollen and dust mites. Therefore, it has been generally supposed that the development and pathogenesis of allergies can be explained through an immunological interpretation. Recently, however, neuro-immune crosstalk has attracted increasing attention. Consequently, it is becoming clear that there is close morphological proximity and physiological and pathophysiological interactions between neurons and immune cells in various peripheral tissues. Thus, researchers are now beginning to appreciate that neuro-immune interactions may play a role in tissue homeostasis and the pathophysiology of immune-mediated disease, but very little information is available on the molecular basis of these interactions. Mast cells are a part of the innate immune system implicated in allergic reactions and the regulation of host-pathogen interactions. Mast cells are ubiquitous in the body, and these cells are often found in close proximity to nerve fibers in various tissues, including the lamina propria of the intestine. Mast cells and neurons are thought to communicate bidirectionally to modulate neurophysiological effects and mast cell functions, which suggests that neuro-immune interactions may be involved in the pathology of allergic diseases.
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Saul D, Leite Barros L, Wixom AQ, Gellhaus B, Gibbons HR, Faubion WA, Kosinsky RL. Cell Type-Specific Induction of Inflammation-Associated Genes in Crohn’s Disease and Colorectal Cancer. Int J Mol Sci 2022; 23:ijms23063082. [PMID: 35328501 PMCID: PMC8955412 DOI: 10.3390/ijms23063082] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 12/10/2022] Open
Abstract
Based on the rapid increase in incidence of inflammatory bowel disease (IBD), the identification of susceptibility genes and cell populations contributing to this condition is essential. Previous studies suggested multiple genes associated with the susceptibility of IBD; however, due to the analysis of whole-tissue samples, the contribution of individual cell populations remains widely unresolved. Single-cell RNA sequencing (scRNA-seq) provides the opportunity to identify underlying cellular populations. We determined the enrichment of Crohn’s disease (CD)-induced genes in a publicly available Crohn’s disease scRNA-seq dataset and detected the strongest induction of these genes in innate lymphoid cells (ILC1), highly activated T cells and dendritic cells, pericytes and activated fibroblasts, as well as epithelial cells. Notably, these genes were highly enriched in IBD-associated neoplasia, as well as sporadic colorectal cancer (CRC). Indeed, the same six cell populations displayed an upregulation of CD-induced genes in a CRC scRNA-seq dataset. Finally, after integrating and harmonizing the CD and CRC scRNA-seq data, we demonstrated that these six cell types display a gradual increase in gene expression levels from a healthy state to an inflammatory and tumorous state. Together, we identified cell populations that specifically upregulate CD-induced genes in CD and CRC patients and could, therefore, contribute to inflammation-associated tumor development.
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Affiliation(s)
- Dominik Saul
- Division of Endocrinology, Mayo Clinic, Rochester, MN 55905, USA
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN 55905, USA
- Department of Trauma, Orthopedics and Reconstructive Surgery, Georg-August-University of Göttingen, 37075 Göttingen, Germany;
- Correspondence: (D.S.); (R.L.K.)
| | - Luísa Leite Barros
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA; (L.L.B.); (A.Q.W.); (H.R.G.); (W.A.F.)
- Department of Gastroenterology, School of Medicine, University of São Paulo, São Paulo 05403-000, Brazil
| | - Alexander Q. Wixom
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA; (L.L.B.); (A.Q.W.); (H.R.G.); (W.A.F.)
| | - Benjamin Gellhaus
- Department of Trauma, Orthopedics and Reconstructive Surgery, Georg-August-University of Göttingen, 37075 Göttingen, Germany;
| | - Hunter R. Gibbons
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA; (L.L.B.); (A.Q.W.); (H.R.G.); (W.A.F.)
| | - William A. Faubion
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA; (L.L.B.); (A.Q.W.); (H.R.G.); (W.A.F.)
| | - Robyn Laura Kosinsky
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA; (L.L.B.); (A.Q.W.); (H.R.G.); (W.A.F.)
- Correspondence: (D.S.); (R.L.K.)
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