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Wang J, Shen J, Chen D, Liao B, Chen X, Zong Y, Wei Y, Shi Y, Liu Y, Gou L, Zhou X, Cheng L, Ren B. Secretory IgA reduced the ergosterol contents of Candida albicans to repress its hyphal growth and virulence. Appl Microbiol Biotechnol 2024; 108:244. [PMID: 38421461 PMCID: PMC10904422 DOI: 10.1007/s00253-024-13063-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 01/31/2024] [Accepted: 02/08/2024] [Indexed: 03/02/2024]
Abstract
Candida albicans, one of the most prevalent conditional pathogenic fungi, can cause local superficial infections and lethal systemic infections, especially in the immunocompromised population. Secretory immunoglobulin A (sIgA) is an important immune protein regulating the pathogenicity of C. albicans. However, the actions and mechanisms that sIgA exerts directly against C. albicans are still unclear. Here, we investigated that sIgA directs against C. albicans hyphal growth and virulence to oral epithelial cells. Our results indicated that sIgA significantly inhibited C. albicans hyphal growth, adhesion, and damage to oral epithelial cells compared with IgG. According to the transcriptome and RT-PCR analysis, sIgA significantly affected the ergosterol biosynthesis pathway. Furthermore, sIgA significantly reduced the ergosterol levels, while the addition of exogenous ergosterol restored C. albicans hyphal growth and adhesion to oral epithelial cells, indicating that sIgA suppressed the growth of hyphae and the pathogenicity of C. albicans by reducing its ergosterol levels. By employing the key genes mutants (erg11Δ/Δ, erg3Δ/Δ, and erg3Δ/Δ erg11Δ/Δ) from the ergosterol pathway, sIgA lost the hyphal inhibition on these mutants, while sIgA also reduced the inhibitory effects of erg11Δ/Δ and erg3Δ/Δ and lost the inhibition of erg3Δ/Δ erg11Δ/Δ on the adhesion to oral epithelial cells, further proving the hyphal repression of sIgA through the ergosterol pathway. We demonstrated for the first time that sIgA inhibited C. albicans hyphal development and virulence by affecting ergosterol biosynthesis and suggest that ergosterol is a crucial regulator of C. albicans-host cell interactions. KEY POINTS: • sIgA repressed C. albicans hyphal growth • sIgA inhibited C. albicans virulence to host cells • sIgA affected C. albicans hyphae and virulence by reducing its ergosterol levels.
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Affiliation(s)
- Jiannan Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Jiawei Shen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Ding Chen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Binyou Liao
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Xi Chen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yawen Zong
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yu Wei
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yangyang Shi
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Yaqi Liu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
- Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Lichen Gou
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Lei Cheng
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China.
- Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Biao Ren
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, Sichuan, China.
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Mahdally SM, Izquierdo M, Viscardi RM, Magder LS, Crowley HM, Bafford AC, Drachenberg CB, Farfan MJ, Fasano A, Sztein MB, Salerno-Goncalves R. Secretory-IgA binding to intestinal microbiota attenuates inflammatory reactions as the intestinal barrier of preterm infants matures. Clin Exp Immunol 2023; 213:339-356. [PMID: 37070830 PMCID: PMC10570995 DOI: 10.1093/cei/uxad042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/09/2023] [Accepted: 04/11/2023] [Indexed: 04/19/2023] Open
Abstract
Previous work has shown that Secretory-IgA (SIgA) binding to the intestinal microbiota is variable and may regulate host inflammatory bowel responses. Nevertheless, the impact of the SIgA functional binding to the microbiota remains largely unknown in preterm infants whose immature epithelial barriers make them particularly susceptible to inflammation. Here, we investigated SIgA binding to intestinal microbiota isolated from stools of preterm infants <33 weeks gestation with various levels of intestinal permeability. We found that SIgA binding to intestinal microbiota attenuates inflammatory reactions in preterm infants. We also observed a significant correlation between SIgA affinity to the microbiota and the infant's intestinal barrier maturation. Still, SIgA affinity was not associated with developing host defenses, such as the production of mucus and inflammatory calprotectin protein, but it depended on the microbiota shifts as the intestinal barrier matures. In conclusion, we reported an association between the SIgA functional binding to the microbiota and the maturity of the preterm infant's intestinal barrier, indicating that the pattern of SIgA coating is altered as the intestinal barrier matures.
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Affiliation(s)
- Sarah M Mahdally
- Division of Neonatology, Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Mariana Izquierdo
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Rose M Viscardi
- Division of Neonatology, Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Laurence S Magder
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Helena M Crowley
- Division of Pediatric Surgery and Urology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Andrea C Bafford
- Division of General and Oncologic Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Cinthia B Drachenberg
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Mauricio J Farfan
- Departamento de Pediatría y Cirugía Infantil, Facultad de Medicina, Hospital Dr. Luis Calvo Mackenna, Universidad de Chile, Santiago, Chile
| | - Alessio Fasano
- Mucosal Immunology and Biology Research Center, Massachusetts General Hospital for Children, Boston, MA, USA
| | - Marcelo B Sztein
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Rosangela Salerno-Goncalves
- Center for Vaccine Development and Global Health, University of Maryland School of Medicine, Baltimore, MD, USA
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Wang X, Zhang J, Wu Y, Xu Y, Zheng J. SIgA in various pulmonary diseases. Eur J Med Res 2023; 28:299. [PMID: 37635240 PMCID: PMC10464380 DOI: 10.1186/s40001-023-01282-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 08/12/2023] [Indexed: 08/29/2023] Open
Abstract
Secretory immunoglobulin A (SIgA) is one of the most abundant immunoglobulin subtypes among mucosa, which plays an indispensable role in the first-line protection against invading pathogens and antigens. Therefore, the role of respiratory SIgA in respiratory mucosal immune diseases has attracted more and more attention. Although the role of SIgA in intestinal mucosal immunity has been widely studied, the cell types responsible for SIgA and the interactions between cells are still unclear. Here, we conducted a wide search of relevant studies and sorted out the relationship between SIgA and some pulmonary diseases (COPD, asthma, tuberculosis, idiopathic pulmonary fibrosis, COVID-19, lung cancer), which found SIgA is involved in the pathogenesis and progression of various lung diseases, intending to provide new ideas for the prevention, diagnosis, and treatment of related lung diseases.
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Affiliation(s)
- Xintian Wang
- Department of Respiratory Medicine, Affiliated Hospital of Jiangsu University, No. 438, Jiefang Road, Jingkou District, Zhenjiang, Jiangsu China
| | - Jun Zhang
- Department of Respiratory and Critical Care Medicine, Aoyang Hospital Affiliated to Jiangsu University, No. 279, Jingang Avenue, Zhangjiagang, Suzhou, Jiangsu China
| | - Yan Wu
- Department of Respiratory Medicine, Affiliated Hospital of Jiangsu University, No. 438, Jiefang Road, Jingkou District, Zhenjiang, Jiangsu China
| | - Yuncong Xu
- Department of Respiratory Medicine, Affiliated Hospital of Jiangsu University, No. 438, Jiefang Road, Jingkou District, Zhenjiang, Jiangsu China
| | - Jinxu Zheng
- Department of Respiratory Medicine, Affiliated Hospital of Jiangsu University, No. 438, Jiefang Road, Jingkou District, Zhenjiang, Jiangsu China
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Chen G, Huo X, Luo X, Cheng Z, Zhang Y, Xu X. E-waste polycyclic aromatic hydrocarbon (PAH) exposure leads to child gut-mucosal inflammation and adaptive immune response. Environ Sci Pollut Res Int 2021; 28:53267-53281. [PMID: 34031825 DOI: 10.1007/s11356-021-14492-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/17/2021] [Indexed: 02/07/2023]
Abstract
Polycyclic aromatic hydrocarbon (PAH) exposure alters immunological responses. Research concerning PAH exposure on intestinal immunity of children in electronic waste (e-waste) areas is scarce. The aim of this study was to evaluate the effects of polycyclic aromatic hydrocarbon (PAH) pollutants on intestinal mucosal immunity of children in e-waste areas. Results showed higher hydroxylated PAH (OH-PAH) concentrations in e-waste-exposed children, accompanied with higher sialyl Lewis A (SLA) level, absolute lymphocyte and monocyte counts, decreased of percentage of CD4+ T cells, and had a higher risk of diarrhea. OH-PAH concentrations were negative with child growth. 1-OHNap mediated through WBCs, along with 1-OHPyr, was correlated with an increase SLA concentration. 2-OHFlu, 1-OHPhe, 2-OHPhe, 1-OHPyr, and 6-OHChr were positively correlated with secretory immunoglobulin A (sIgA) concentration. Our results indicated that PAH pollutants caused inflammation, affected the intestinal epithelium, and led to transformation of microfold cell (M cell). M cells initiating mucosal immune responses and the subsequent increasing sIgA production might be an adaptive immune respond of children in the e-waste areas. To our knowledge, this is the first study of PAH exposure on children intestinal immunity in e-waste area, showing that PAH exposure plays a negative role in child growth and impairs the intestinal immune function.
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Affiliation(s)
- Guangcan Chen
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 22 Xinling Rd, Shantou, 515041, Guangdong, China
| | - Xia Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou, 511443, Guangdong, China
| | - Xiuli Luo
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 22 Xinling Rd, Shantou, 515041, Guangdong, China
| | - Zhiheng Cheng
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 22 Xinling Rd, Shantou, 515041, Guangdong, China
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
| | - Yuling Zhang
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 22 Xinling Rd, Shantou, 515041, Guangdong, China
| | - Xijin Xu
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 22 Xinling Rd, Shantou, 515041, Guangdong, China.
- Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, 515041, Guangdong, China.
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Velikova T, Snegarova V, Kukov A, Batselova H, Mihova A, Nakov R. Gastro intestinal mucosal immunity and COVID-19. World J Gastroenterol 2021; 27:5047-5059. [PMID: 34497434 PMCID: PMC8384742 DOI: 10.3748/wjg.v27.i30.5047] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/01/2021] [Accepted: 07/12/2021] [Indexed: 02/06/2023] Open
Abstract
As the gastrointestinal tract may also be a crucial entry or interaction site of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the role of the gut mucosal immune system as a first-line physical and immunological defense is critical. Furthermore, gastrointestinal involvement and symptoms in coronavirus disease 2019 (COVID-19) patients have been linked to worse clinical outcomes. This review discusses recent data on the interactions between the virus and the immune cells and molecules in the mucosa during the infection. By carrying out appropriate investigations, the mucosal immune system role in SARS-CoV-2 infection in therapy and prevention can be established. In line with this, COVID-19 vaccines that stimulate mucosal immunity against the virus may have more advantages than the others.
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Affiliation(s)
- Tsvetelina Velikova
- Department of Clinical Immunology, University Hospital Lozenetz, Medical Faculty, Sofia University, St. Kliment Ohridski, Sofia 1407, Bulgaria
| | - Violeta Snegarova
- Clinic of Internal Diseases, Naval Hospital – Varna, Military Medical Academy, Medical Faculty, Medical University, Varna 9000, Bulgaria
| | - Alexander Kukov
- Department of Clinical Immunology, University Hospital Lozenetz, Medical Faculty, Sofia University, St. Kliment Ohridski, Sofia 1407, Bulgaria
| | - Hristiana Batselova
- Department of Epidemiology and Disaster Medicine, Medical University, Plovdiv, University Hospital "St George", Plovdiv 6000, Bulgaria
| | - Antoaneta Mihova
- Department of Clinical Immunology, University Hospital Lozenetz, Medical Faculty, Sofia University, St. Kliment Ohridski, Sofia 1407, Bulgaria
| | - Radislav Nakov
- Clinic of Gastroenterology, Tsaritsa Joanna University Hospital, Medical University of Sofia, Sofia 1527, Bulgaria
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Okabayashi K, Wakao Y, Narita T. Release of secretory immunoglobulin A by submandibular gland via β adrenergic receptor stimulation. Arch Oral Biol 2021; 129:105209. [PMID: 34274846 DOI: 10.1016/j.archoralbio.2021.105209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 07/08/2021] [Accepted: 07/13/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Secretory immunoglobulin A (sIgA) is important for mucosal immunity due to the inhibition of pathogen infection. The submandibular gland is known to secrete more sIgA than the parotid and sublingual glands. In this study, we focused on the relationship between the secretion of accumulated intracellular sIgA and β-adrenergic receptor stimulation, and clarified the autonomic regulatory mechanism of sIgA secretion in submandibular gland cells using dispersed gland cells. DESIGN Sprague-Dawley rats (male, 6 weeks old, 200-250 g) were euthanized and their submandibular glands were removed. Dispersed submandibular gland cells placed in Krebs-Ringer-Bicarbonate solution were stimulated by autonomic nerve agonists. The concentration of secreted sIgA was measured using a rat IgA ELISA kit. The results were analysed using ANOVA and Tukey's test. RESULTS Cells stimulated with the non-selective β-adrenoreceptor agonist, isoprenaline, secreted significantly more sIgA compared with the unstimulated control. The β2-adrenoreceptor agonist, fenoterol, caused significantly more sIgA secretion than the control, and more sIgA secretion than the β1-adrenoreceptor agonist, xamoterol. sIgA secretion by isoprenaline stimulation was dose dependent. Inhibition of the β receptor by propranolol completely blocked sIgA secretion following isoprenaline stimulation. CONCLUSION Stimulation of β receptors could result in more secretion of intracellularly accumulated sIgA compared with stimulation of other autonomic receptors in the autonomic modulation of mucosal immunity.
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Affiliation(s)
- Ken Okabayashi
- Laboratory of Veterinary Biochemistry, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa, 252-0880, Japan
| | - Yuki Wakao
- Laboratory of Veterinary Biochemistry, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa, 252-0880, Japan; Laboratory of Molecular Biology, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa, 252-0880, Japan
| | - Takanori Narita
- Laboratory of Molecular Biology, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa, 252-0880, Japan.
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Nakanishi K, Mogi N, Kikuchi Y, Matsuda M, Matsuoka T, Shiina K, Morikane S, Kurohane K, Niwa Y, Kobayashi H, Imai Y. Plant-derived secretory component gives protease-resistance to Shiga toxin 1-specific dimeric IgA. Plant Mol Biol 2021; 106:297-308. [PMID: 33871797 DOI: 10.1007/s11103-021-01151-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Affiliation(s)
- Katsuhiro Nakanishi
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Noriko Mogi
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Yuki Kikuchi
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Minami Matsuda
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Takeshi Matsuoka
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Kotome Shiina
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Shota Morikane
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Kohta Kurohane
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Yasuo Niwa
- Laboratory of Plant Molecular Improvement, Graduate Division of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Hirokazu Kobayashi
- Laboratory of Plant Molecular Improvement, Graduate Division of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Yasuyuki Imai
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan.
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Wu M, Xiao H, Shao F, Tan B, Hu S. Arginine accelerates intestinal health through cytokines and intestinal microbiota. Int Immunopharmacol 2019; 81:106029. [PMID: 31757675 DOI: 10.1016/j.intimp.2019.106029] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/22/2019] [Accepted: 11/04/2019] [Indexed: 01/24/2023]
Abstract
Arginine supplementation improves intestinal damage and intestinal immunity, but the underlying mechanism of the effects of arginine supplementation on intestinal SIgA secretion is largely unknown. Therefore, this study was conducted to investigate the underlying pathway on the effects of arginine supplementation in secretory IgA (SIgA) production in mice. The results showed that 0.4% arginine supplementation promoted (P < 0.05) SIgA production in intestinal lumina and IgA+ plasma cell numbers in the ileum of mouse. Arginine supplementation significantly increased (P < 0.05) cytokines expression in mouse ileal associated with T cell-dependent and T cell-independent pathways of SIgA induction, including IL-5, IL-6, IL-13, transforming growth factor (TGF-)β2, TGF-β3, TGF-βR2, a proliferation-inducing ligand (APRIL), B cell-activating factor (BAFF), vasoactive intestinal peptide (VIP) receptor, and retinal dehydrogenases. Further study showed that 0.4% arginine supplementation markly decreased (P < 0.05) bacterial loads in mouse mesenteric lymph nodes and increased bacterial invasion into the mouse ileal wall, while supplementation of antibiotic abrogated the influence of arginine supplementation on SIgA secretion. Therefore, these data suggest that arginine supplementation might promote SIgA secretion through cytokines and intestinal microbiota might play an important role in SIgA secretion by arginine supplementation in the mouse intestine.
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Affiliation(s)
- Miaomiao Wu
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Guangzhou 510640, China; Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS, USA
| | - Hao Xiao
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Guangzhou 510640, China.
| | - Fangyuan Shao
- Faculty of Health Sciences, University of Macau, Macau
| | - Bie Tan
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, Hunan, China
| | - Shenglan Hu
- State Key Laboratory of Livestock and Poultry Breeding, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Guangzhou 510640, China.
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Sánchez-Salguero ES, Santos-Argumedo L. [Human microbiota association with immunoglobulin A and its participation in immune response]. ACTA ACUST UNITED AC 2019; 65:264-278. [PMID: 30176205 DOI: 10.29262/ram.v65i3.519] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Human microbiota is the aggregate of microorganisms that reside in our body. Its phylogenetic composition is related to the risk for suffering from inflammatory diseases and allergic conditions. Humans interact with a large number and variety of these microorganisms via the skin and mucous membranes. An immune protection mechanism is the production of secretory IgA (SIgA), which recognizes resident pathogenic microorganisms and prevents their interaction with host epithelial cells by means of immune exclusion. Formerly, it was thought that SIgA only function in mucous membranes was to recognize and exclude pathogens, but thanks to the use of massive sequencing techniques for human microbiota phylogenetic characterization, now we know that it can be associated with pathogenic and non-pathogenic microorganisms, an association that is important for functions the microbiota carries out in epithelia, such as regulating the capability of certain microbial species to settle on the skin and mucous membranes, and stimulation and regulation of the immune response and of the risk for the development of inflammatory problems, allergic conditions, autoimmune diseases, and even cancer. Established microbiota determines the type of bacterial species (and probably viral and protozoan species) that reside on the skin and mucous membranes, promoting microbial diversity.
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Affiliation(s)
- Erick Saúl Sánchez-Salguero
- Instituto Politécnico Nacional, Centro de Investigación y de Estudios Avanzados, Departamento de Biomedicina Molecular, Ciudad de México, México.
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Abstract
OBJECTIVES To assess the association between different factors in saliva and dental caries experience in children with bronchial asthma. MATERIALS AND METHODS A total of 60 asthmatic children and 60 healthy controls of both genders with age ranging from 4- to 12-year-old. The asthmatics were grouped according to disease severity into mild, moderate, or severe asthma. All the children were clinically examined to assess their dental caries experience (deft/DMFT), and stimulated saliva samples were collected to measure the saliva pH, flow rate, ά-amylase, and secretory immunoglobulin A (sIgA)-level changes. The data were statistically analyzed using the SPSS program (v. 23) to test for significance at p ≤ 0.05. RESULTS Asthmatic children presented significantly higher deft mean value (6.77 ± 1.69), as well as significantly reduced stimulated saliva flow (0.82 ± 0.2) and sIgA (29.42 ± 6.31) when compared to healthy control. The sIgA of asthmatics showed statistically significant negative correlation with deft and DMFT. Severe asthmatics presented significantly the lowest sIgA mean level (23.61 ± 5.33) and the most reduced saliva flow rate (0.64 ± 0.20). CONCLUSION The reduction in saliva flow rate and secretory immunoglobulin A render asthmatic children more prone to increased dental caries progression mainly of primary dentition. HOW TO CITE THIS ARTICLE Arafa A, AlDahlawi S, Hussien A, et al. Impact of Secretory Immunoglobulin A Level on Dental Caries Experience in Asthmatic Children. Int J Clin Pediatr Dent 2019;12(5):414-418.
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Affiliation(s)
- Abla Arafa
- Department of Pediatric Dentistry and Dental Public Health, Faculty of Oral and Dental Medicine, Misr International University, Cairo, Egypt; Department of Preventive Dentistry, College of Dentistry, Umm Al-Qura University, Mecca, Kingdom of Saudi Arabia
| | - Salwa AlDahlawi
- Department of Basic Medical Sciences, College of Dentistry, Umm Al-Qura University, Mecca, Kingdom of Saudi Arabia
| | - Adel Hussien
- Department of Preventive Dentistry, College of Dentistry, Umm Al-Qura University, Mecca, Kingdom of Saudi Arabia; Department of Pediatric Dentistry, Faculty of Dentistry, Al-Azhar University, Cairo, Egypt
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11
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Takagi C, Nakagawa S, Hirata N, Ohta S, Shimoeda S. Evaluating the effect of aromatherapy on a stress marker in healthy subjects. J Pharm Health Care Sci 2019; 5:18. [PMID: 31428439 PMCID: PMC6693249 DOI: 10.1186/s40780-019-0148-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 07/08/2019] [Indexed: 02/03/2023] Open
Abstract
Background/purpose Chemotherapy is important for cancer treatment, but patients' physical and mental stress may lead to unfavorable pain control, an increase in the risk of relapse, and a reduction in the quality of life (QOL). Recently, aromatherapy has been performed in addition to palliative care in many countries, such as Japan and the United States, but scientific evidence remains insufficient. To investigate the usefulness of aromatherapy as complementary and alternative medicine, we evaluated its influence on the immune and autonomic nervous systems. Methods We instructed healthy volunteers to inhale aroma oil at bedtime for 6 weeks, and measured changes in the salivary level of secretory immunoglobulin A (s-IgA). Furthermore, blood was collected in addition to saliva in some healthy volunteers, and the blood level of noradrenaline (NA) was measured to examine its relationship to changes in the salivary s-IgA level. Results Aromatherapy with lavender and grapefruit oils significantly increased the salivary s-IgA level: lavender oil increased 3.5-fold (p = 0.03), and grapefruit oil increased 2.55-fold (p = 0.04). On lavender oil inhalation, there was a weak, positive correlation between changes in the salivary s-IgA level and those in the blood NA level (R2 = 0.24). Conclusion The results showed that aromatherapy with lavender and grapefruit oils reduced stress by acting on the immune and autonomic nervous systems in healthy volunteers. In the future, its clinical usefulness must be investigated through similar examination in patients in whom the stress level may be high.
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Affiliation(s)
- Chiaki Takagi
- 1Tokyo University of Pharmacy and Life Sciences, 1432-1, Horinouchi, Hachiohji Tokyo, Japan
| | - Saori Nakagawa
- 2Niigata University of Pharmacy and Applied Life Sciences, 265-1, Higashijima, Akiha, Niigata, Japan
| | - Naoto Hirata
- 1Tokyo University of Pharmacy and Life Sciences, 1432-1, Horinouchi, Hachiohji Tokyo, Japan
| | - Shin Ohta
- 1Tokyo University of Pharmacy and Life Sciences, 1432-1, Horinouchi, Hachiohji Tokyo, Japan
| | - Sadahiko Shimoeda
- 1Tokyo University of Pharmacy and Life Sciences, 1432-1, Horinouchi, Hachiohji Tokyo, Japan
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Nakanishi K, Morikane S, Hosokawa N, Kajihara Y, Kurohane K, Niwa Y, Kobayashi H, Imai Y. Plant-derived secretory component forms secretory IgA with shiga toxin 1-specific dimeric IgA produced by mouse cells and whole plants. Plant Cell Rep 2019; 38:161-172. [PMID: 30506369 DOI: 10.1007/s00299-018-2358-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 11/19/2018] [Indexed: 06/09/2023]
Abstract
A key module, secretory component (SC), was efficiently expressed in Arabidopsis thaliana. The plant-based SC and immunoglobulin A of animal or plant origin formed secretory IgA that maintains antigen-binding activity. Plant expression systems are suitable for scalable and cost-effective production of biologics. Secretory immunoglobulin A (SIgA) will be useful as a therapeutic antibody against mucosal pathogens. SIgA is equipped with a secretory component (SC), which assists the performance of SIgA on the mucosal surface. Here we produced SC using a plant expression system and formed SIgA with dimeric IgAs produced by mouse cells as well as by whole plants. To increase the expression level, an endoplasmic reticulum retention signal peptide, KDEL (Lys-Asp-Glu-Leu), was added to mouse SC (SC-KDEL). The SC-KDEL cDNA was inserted into a binary vector with a translational enhancer and an efficient terminator. The SC-KDEL transgenic Arabidopsis thaliana produced SC-KDEL at the level of 2.7% of total leaf proteins. In vitro reaction of the plant-derived SC-KDEL with mouse dimeric monoclonal IgAs resulted in the formation of SIgA. When reacted with Shiga toxin 1 (Stx1)-specific ones, the antigen-binding activity was maintained. When an A. thaliana plant expressing SC-KDEL was crossed with one expressing dimeric IgA specific for Stx1, the plant-based SIgA exhibited antigen-binding activity. Leaf extracts of the crossbred transgenic plants neutralized Stx1 cytotoxicity against Stx1-sensitive cells. These results suggest that transgenic plants expressing SC-KDEL will provide a versatile means of SIgA production.
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Affiliation(s)
- Katsuhiro Nakanishi
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Shota Morikane
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Nao Hosokawa
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Yuka Kajihara
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Kohta Kurohane
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Yasuo Niwa
- Laboratory of Plant Molecular Improvement, Graduate Division of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Hirokazu Kobayashi
- Laboratory of Plant Molecular Improvement, Graduate Division of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan
| | - Yasuyuki Imai
- Laboratory of Microbiology and Immunology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka City, Shizuoka, 422-8526, Japan.
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Sun H, Bi J, Lei Q, Wan X, Jiang T, Wu C, Wang X. Partial enteral nutrition increases intestinal sIgA levels in mice undergoing parenteral nutrition in a dose-dependent manner. Int J Surg 2017; 49:74-79. [PMID: 29248622 DOI: 10.1016/j.ijsu.2017.12.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Accepted: 12/12/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Partial enteral nutrition (PEN) protects parenteral nutrition (PN) induced gut mucosal immunity impairment. However, the gastrointestinal function of most patients with PN is too poor to tolerate full dosage of PEN and no guidelines recommend PEN dose. We aimed to identify an optimal PEN dose and to understand the protective mechanism. METHODS Mice were assigned to groups with total parenteral nutrition (TPN), total enteral nutrition (TEN), or various degrees of PEN with PN. Additionally, AS1517499 was used to inhibit STAT6. Five days after treatment, secretory immunoglobulin A (sIgA) levels of luminal washing fluid and JAK1-STAT6 signalling in ileum tissue of different groups were assessed. RESULTS We found that TPN lowered luminal sIgA and down-regulated pIgR, phosphorylated JAK1 and STAT6, IL-4 and IL-13 as well relative to TEN. Moreover, 40% EN were lowest dose that reversed these detrimental consequences of PN to an equivalent level as TEN. The rescue of pIgR and luminal sIgA expression was decreased when the JAK1-STAT6 pathway was inhibited. CONCLUSION We conclude that 40% EN is the optimal PEN dose that reverses PN-induced impairment of gut mucosal immunity. Additionally, we hypothesise that this benefit involves activation of the JAK1-STAT6 pathway.
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Affiliation(s)
- Haifeng Sun
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, Jiangsu Province, China
| | - Jingcheng Bi
- Department of Thyroid and Breast Surgery, Taizhou People's Hospital, Taizhou 225300, Jiangsu Province, China
| | - Qiucheng Lei
- Department of Liver Surgery, The First People's Hospital of Foshan, Foshan 528000, Guangdong Province, China
| | - Xiao Wan
- Anhui Provincial Hospital, Hefei 230001, Anhui Province, China
| | - Tingting Jiang
- Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Chao Wu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xinying Wang
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, Jiangsu Province, China.
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Gourkow N, Phillips CJC. Effect of cognitive enrichment on behavior, mucosal immunity and upper respiratory disease of shelter cats rated as frustrated on arrival. Prev Vet Med 2016; 131:103-110. [PMID: 27544259 DOI: 10.1016/j.prevetmed.2016.07.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 07/12/2016] [Accepted: 07/24/2016] [Indexed: 10/21/2022]
Abstract
Acquisition of resources and opportunity to engage in natural behaviors has been shown to reduce frustration-related behaviors and enhance health in nondomestic felids kept in zoos, but little is known about whether there are similar effects in domestic cats living in confinement in animal shelters. Fifteen cats rated as Frustrated during the first hour of confinement to a cage at an animal shelter were assigned to either a Treatment (n=7) or Control (n=8) group. Treatment cats were taken from their cages to a separate room four times daily for 10min each time over a 10 d period, where they took part in training sessions to learn a novel behavior (paw-hand contact with a researcher). Changes in emotional states and mucosal immune response were evaluated over 10days. Infectious status was determined upon admission and incidence of upper respiratory was determined up to day 40 based on clinical signs. Treated cats were more likely to be rated as Content than Control cats and had greater concentrations of S-IgA (537μg/g) in feces than Control cats (101μg/g). Within the Treatment group, cats that responded positively had greater concentrations of S-IgA (925μg/g) than those that responded negatively (399μg/g). Control cats were more likely to develop respiratory disease over time compared to cats that received treatment (Hazard Ratio: 2.37, Confidence Interval: 1.35-4.15). It is concluded that there is prima facie evidence that cognitive enrichment of cats exhibiting frustration-related behaviors can elicit positive affect (contentment), stimulate secretion of IgA and reduce incidence of respiratory disease, which is worthy of further study.
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Affiliation(s)
- Nadine Gourkow
- Centre for Animal Welfare and Ethics, School of Veterinary Medicine, University of Queensland, Gatton, Queensland 4343, Australia
| | - Clive J C Phillips
- Centre for Animal Welfare and Ethics, School of Veterinary Medicine, University of Queensland, Gatton, Queensland 4343, Australia.
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15
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Suzuki N, Nakanishi K, Yoneda M, Hirofuji T, Hanioka T. Relationship between salivary stress biomarker levels and cigarette smoking in healthy young adults: an exploratory analysis. Tob Induc Dis 2016; 14:20. [PMID: 27274336 PMCID: PMC4896002 DOI: 10.1186/s12971-016-0085-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 06/01/2016] [Indexed: 12/02/2022] Open
Abstract
Background This study investigated the relationships among salivary stress biomarkers, cigarette smoking, and mood states. Methods The study population comprised 49 healthy sixth-year dental students at Fukuoka Dental College (39 men, 10 women; age, 23–31 years). Lifetime exposure to smoking was calculated using the Brinkman index (BI). Resting saliva samples were collected, and concentrations of cortisol, secretory immunoglobulin A (SIgA), interleukin (IL)-1β, interleukin-6, and tumor necrosis factor (TNF)-α were determined. Mood states (tension-anxiety, depression-dejection, anger-hostility, fatigue, confusion, and vigor) over the previous week were assessed using the Profile of Mood States - Brief Japanese Version. Results Salivary IL-1β levels were significantly higher in smokers than non-smokers (P = 0.044), regardless of the BI or mood state. A significant positive correlation was evident between the TNF-α level and the BI (P = 0.036), and the SIgA level was positively correlated with the BI (P = 0.067) but did not reach statistical significance. In terms of mood states, higher fatigue scores and lower vigor scores were observed in smokers. The TNF-α level and vigor score were negatively correlated (r = –0.229, P = 0.135), but the correlation did not reach statistical significance. However, the SIgA level and fatigue score were significantly positively correlated (r = 0.410, P = 0.005). Conclusions The TNF-α and SIgA levels were both positively correlated with the BI. Furthermore, the TNF-α level was negatively correlated with the vigor score, whereas the SIgA level was positively correlated with the fatigue score. Thus, salivary levels of TNF-α and SIgA may be used as biomarkers of mood states in healthy young smokers.
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Affiliation(s)
- Nao Suzuki
- Department of Preventive and Public Health Dentistry, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193 Japan
| | - Kosuke Nakanishi
- Department of General Dentistry, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193 Japan
| | - Masahiro Yoneda
- Department of General Dentistry, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193 Japan
| | - Takao Hirofuji
- Department of General Dentistry, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193 Japan
| | - Takashi Hanioka
- Department of Preventive and Public Health Dentistry, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka, 814-0193 Japan
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16
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Roos K, Martinsson K, Ziegelasch M, Sommarin Y, Svärd A, Skogh T, Kastbom A. Circulating secretory IgA antibodies against cyclic citrullinated peptides in early rheumatoid arthritis associate with inflammatory activity and smoking. Arthritis Res Ther 2016; 18:119. [PMID: 27215344 PMCID: PMC4877943 DOI: 10.1186/s13075-016-1014-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 05/06/2016] [Indexed: 12/29/2022] Open
Abstract
Background A possible association between mucosal immunization and inflammation, as well as the initiation and propagation of rheumatoid arthritis (RA), is attracting renewed interest. The aim of this study was to evaluate the possible occurrence and clinical correlations of circulating secretory immunoglobulin A (SIgA) antibodies against the second-generation cyclic citrullinated peptides (CCP) among patients with recent-onset RA followed prospectively over 3 years. Methods Baseline serum samples from 636 patients with recent-onset RA were analyzed for SIgA anti-CCP antibodies by using an enzyme-linked immunosorbent assay with a secondary antibody directed against secretory component. SIgA anti-CCP status at baseline was analyzed in relation to smoking, HLA-DRB1/shared epitope (SE), and the disease course over 3 years. Significant findings were evaluated in regression analysis that included age, sex, smoking, and SE. Results Seventeen percent of the patients tested positive for circulating SIgA anti-CCP, and the occurrence was confirmed by detection of secretory component in an affinity-purified IgA anti-CCP fraction. SIgA anti-CCP positivity at baseline was associated with slightly higher baseline erythrocyte sedimentation rate (ESR) (mean 38 vs. 31 mm/first hour, p = 0.004) and C-reactive protein (CRP) (mean 30 vs. 23 mg/L, p = 0.047). During follow-up, SIgA anti-CCP-positive patients had a higher mean AUC regarding ESR (adjusted p = 0.003), although there were no significant differences regarding CRP, tender and swollen joint counts, or radiological joint damage (median Larsen progression 1.0 vs. 1.0, p = 0.22). SIgA anti-CCP was associated significantly with smoking (79 % ever smokers among SIgA anti-CCP-positive patients vs. 59 % in SIgA anti-CCP-negative patients, adjusted OR 2.19, 95 % CI 1.01–4.37, p = 0.027) but not with carriage of the SE (80 % vs. 73 %, p = 0.62). Conclusions Circulating SIgA anti-CCP, which is present in a subgroup of patients with early RA, is not related to SE, but it is environmentally linked to cigarette smoking. This finding strengthens the hypothesis that immunization against citrullinated peptides and/or proteins may occur at mucosal surfaces of the airways. Analysis of SIgA antibodies in serum may be a convenient and more versatile means to investigate the “mucosal connection” in RA compared with analyses in mucosal fluid samples.
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Affiliation(s)
- Karin Roos
- Division of Rheumatology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Klara Martinsson
- Division of Rheumatology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Michael Ziegelasch
- Division of Rheumatology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | | | - Anna Svärd
- Division of Rheumatology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.,Rheumatology Clinic, Falun Hospital, Falun, Sweden
| | - Thomas Skogh
- Division of Rheumatology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Alf Kastbom
- Division of Rheumatology, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
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Wu M, Xiao H, Liu G, Chen S, Tan B, Ren W, Bazer FW, Wu G, Yin Y. Glutamine promotes intestinal SIgA secretion through intestinal microbiota and IL-13. Mol Nutr Food Res 2016; 60:1637-48. [PMID: 27005687 DOI: 10.1002/mnfr.201600026] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/02/2016] [Accepted: 02/29/2016] [Indexed: 12/20/2022]
Abstract
SCOPE Glutamine supplementation enhances secretory IgA (SIgA) production in the intestine, but the mechanism is largely unknown. We examined this issue using a mouse model. METHODS AND RESULTS In mouse model, glutamine supplementation increased both SIgA abundance in intestinal luminal contents and IgA(+) plasma cell numbers in the mouse ileum, and decreased bacterial loads in mouse mesenteric lymph nodes. Glutamine supplementation increased mouse ileal expression of cytokines associated with T cell-dependent and T cell-independent pathways of SIgA induction, including IL-5, IL-6, IL-13, transforming growth factor (TGF-β), a proliferation-inducing ligand (APRIL), B cell-activating factor (BAFF), vasoactive intestinal peptide (VIP) receptor, and retinal dehydrogenases. Injecting an IL-13 antibody during glutamine supplementation reduced J-chain expression in the mouse ileum. Glutamine supplementation increased bacterial invasion into the mouse ileal wall, while disrupting the mouse intestinal microbiota abrogated the influence of glutamine supplementation on SIgA secretion. CONCLUSION Glutamine supplementation appears to enhance SIgA secretion in the mouse intestine through the intestinal microbiota and subsequently through T cell-dependent and T cell-independent pathways.
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Affiliation(s)
- Miaomiao Wu
- Laboratory of Animal Nutrition and Health and Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China.,Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS, USA
| | - Hao Xiao
- Laboratory of Animal Nutrition and Health and Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
| | - Gang Liu
- Laboratory of Animal Nutrition and Health and Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
| | - Shuai Chen
- Laboratory of Animal Nutrition and Health and Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
| | - Bie Tan
- Laboratory of Animal Nutrition and Health and Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
| | - Wenkai Ren
- Laboratory of Animal Nutrition and Health and Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
| | - Fuller W Bazer
- Department of Animal Science, Texas A&M University, 2471 TAMU, College Station, TX, USA
| | - Guoyao Wu
- Department of Animal Science, Texas A&M University, 2471 TAMU, College Station, TX, USA
| | - Yulong Yin
- Laboratory of Animal Nutrition and Health and Key Laboratory of Agro-Ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, P. R. China
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18
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Wang P, Li Y, Xiao H, Shi Y, Le GW, Sun J. Isolation of lactobacillus reuteri from Peyer's patches and their effects on sIgA production and gut microbiota diversity. Mol Nutr Food Res 2016; 60:2020-30. [PMID: 27030202 DOI: 10.1002/mnfr.201501065] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 02/27/2016] [Accepted: 03/16/2016] [Indexed: 01/04/2023]
Abstract
SCOPE We previously reported that specific Lactobacillus reuteri colonized within mouse Peyer's patches (PP) effectively prevented high fat diet induced obesity and low-grade chronic inflammation. We further investigated the role of PP Lactobacillus reuteri on sIgA production in rats in this study. METHODS AND RESULTS Lactobacilli were isolated from rat PP. All isolates were L. reuteri and belonged to three phenotypes according to amplified fragment length polymorphism analysis. Typical strains of two main clusters, PP1 and PP2, were used to treat control and vitamin A deficient (VAD) rats, respectively. The feeding of PP1 and PP2 affected sIgA and Lactobacillus diversity by strain-specific manner. Free sIgA was significantly increased by PP1 (p = 0.069) and PP2 (p < 0.05) in the control rats but not in the VAD rats. Only PP1 significantly changed PP Lactobacillus diversity in the control rats (p < 0.05). However, PP2 specifically changed ileal Lactobacillus diversity in both control and VAD rats. Fecal sIgA was correlated with PP Lactobacillus diversity (R(2) = 0.7958, p = 0.011). CONCLUSION Modulation of sIgA production by PP L. reuteri of rat is dependent on vitamin A and change of Lactobacillus diversity in PP.
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Affiliation(s)
- Panpan Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China.,Food Nutrition and Functional Factors Research Center, School of Food Science and Technology, Jiangnan University, Wuxi, PR China
| | - Ya Li
- Food Nutrition and Functional Factors Research Center, School of Food Science and Technology, Jiangnan University, Wuxi, PR China
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, MA, USA
| | - Yonghui Shi
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China.,Food Nutrition and Functional Factors Research Center, School of Food Science and Technology, Jiangnan University, Wuxi, PR China
| | - Guo-Wei Le
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China.,Food Nutrition and Functional Factors Research Center, School of Food Science and Technology, Jiangnan University, Wuxi, PR China
| | - Jin Sun
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, PR China. .,Food Nutrition and Functional Factors Research Center, School of Food Science and Technology, Jiangnan University, Wuxi, PR China.
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19
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Delany FM, Byrne ML, Whittle S, Simmons JG, Olsson C, Mundy LK, Patton GC, Allen NB. Depression, immune function, and early adrenarche in children. Psychoneuroendocrinology 2016; 63:228-34. [PMID: 26492635 DOI: 10.1016/j.psyneuen.2015.10.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 10/05/2015] [Accepted: 10/05/2015] [Indexed: 12/30/2022]
Abstract
Despite consistent findings of an association between depression and immunity in adult and adolescent populations, little is known about the nature of this relationship at earlier ages. Studies of children have yielded mixed results, suggesting methodological confounds and/or the presence of significant moderating factors. Timing of adrenarche, the first phase of puberty that occurs during late childhood, is a plausible moderator of the depression-immunity relationship in late childhood due to its associations with both the immune system and psychological wellbeing. We hypothesized that: (1) a depression-immunity association exists in children, (2) this association is moderated by adrenarcheal timing, and, (3) this association is also moderated by gender. Data were drawn from a nested study of 103 participants (62 females, Mage=9.5, age range: 8.67-10.21 years) participating in a population based cohort study of the transition from childhood to adolescence (across puberty). Participants in this nested study completed the Children's Depression Inventory 2 (CDI-2) and provided morning saliva samples to measure immune markers (i.e., C-reactive protein, CRP; and secretory immunoglobulin A, SIgA). Using hierarchical regression, inflammation measured by CRP was positively associated with the negative mood/physical symptoms (NM/PS) subscale (β=0.23, t=2.33, p=0.022) of the CDI-2. A significant interaction effect of SIgA x adrenarcheal timing was found for NM/PS (β=-0.39, t=-2.19, p=0.031) and Interpersonal Problems (β=-0.47, t=-2.71, p=0.008). SIgA and NM/PS were positively associated for relatively late developers. SIgA and Interpersonal Problems were positively associated for late developers, and negatively associated for early developers. We suggest that both sets of findings might be partially explained by the immunosuppressive effect of the hormonal changes associated with earlier adrenarche, namely testosterone. These results also suggest that adrenarcheal timing has an effect on the association between depression and immunity, and is therefore an important measure in research with younger populations. Future research should utilize longitudinal designs to demonstrate direction of influence of variables, and use a broader range of pro- and anti-inflammatory markers.
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Affiliation(s)
- Faustina M Delany
- Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | | | - Sarah Whittle
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne & Melbourne Health, Victoria, Australia
| | - Julian G Simmons
- Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, Victoria, Australia; Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne & Melbourne Health, Victoria, Australia; Murdoch Childrens Research Institute, Melbourne, Australia
| | - Craig Olsson
- Centre for Adolescent Health, The Royal Children's Hospital, Melbourne, Australia
| | - Lisa K Mundy
- Centre for Adolescent Health, The Royal Children's Hospital, Melbourne, Australia; Murdoch Childrens Research Institute, Melbourne, Australia; Department of Paediatrics, The University of Melbourne, Melbourne, Australia
| | - George C Patton
- Murdoch Childrens Research Institute, Melbourne, Australia; Department of Paediatrics, The University of Melbourne, Melbourne, Australia
| | - Nicholas B Allen
- Melbourne School of Psychological Sciences, The University of Melbourne, Parkville, Victoria, Australia; The University of Oregon, Eugene, OR, USA.
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Abstract
Glucagon-like peptide-2 (GLP-2) is a single chain polypeptide hormone with a molecular weight of 3.9 kDa, which is secreted by L cells of the intestine. GLP-2 is a specific intestinal epithelial growth factor, and it can promote the repair of intestinal mucosa injury, inhibit apoptosis, improve the intestinal absorption of nutrients, and strengthen the intestinal barrier function. GLP-2 also plays an important role in maintaining the continuity and integrity of the intestinal mucosa. These characteristics make GLP-2 become the current research hotspot in the field of gastrointestinal barrier function. The main focus of previous studies is on nutrient absorption and protection of the intestinal mechanical barrier, and there have been relatively scarce studies on the protective effect of GLP-2 on intestinal mucosal immune barrier. This article reviews the role of GLP-2 in intestinal mucosal immunity and the possible mechanisms.
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Gourkow N, Hamon SC, Phillips CJC. Effect of gentle stroking and vocalization on behaviour, mucosal immunity and upper respiratory disease in anxious shelter cats. Prev Vet Med 2014; 117:266-75. [PMID: 25064364 DOI: 10.1016/j.prevetmed.2014.06.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 06/12/2014] [Accepted: 06/12/2014] [Indexed: 11/17/2022]
Abstract
Emotional, behavioural, and health benefits of gentle stroking and vocalizations, otherwise known as gentling, have been documented for several species, but little is known about the effect of gentling on cats in stressful situations. In this study, 139 cats rated as anxious upon admission to an animal shelter were allocated to either a Gentled or Control group. Cats were gentled four times daily for 10 min over a period of 10 days, with the aid of a tool for cats that were too aggressive to handle. The cats' mood, or persistent emotional state, was rated daily for 10 d as Anxious, Frustrated or Content. Gentled cats were less likely to have negatively valenced moods (Anxious or Frustrated) than Control cats (Incidence Rate Ratio [IRR]=0.61 CI 0.42-0.88, P=0.007). Total secretory immunoglobulin A (S-IgA) was quantified from faeces by enzyme-linked immunosorbent assay. Gentled cats had increased S-IgA (6.9 ± 0.7 logeμg/g) compared to Control cats (5.9 ± 0.5 logeμg/g) (P<0.0001). Within the Gentled group of cats, S-IgA values were higher for cats that responded positively to gentling (7.03 ± 0.6, logeμg/g), compared with those that responded negatively (6.14 ± 0.8, logeμg/g). Combined conjunctival and oropharyngeal swab specimens were tested by quantitative real-time polymerase chain reaction (rPCR) for feline herpesvirus type 1 (FHV-1), feline calicivirus (FCV), Mycoplasma felis, Chlamydophila felis, and Bordetella bronchiseptica. There was a significant increase in shedding over time in Control cats (23%, 35%, 52% on days 1, 4 and 10, respectively), but not in gentled cats (32%, 26%, 30% on days 1, 4 and 10, respectively) (P=0.001). Onset of upper respiratory disease was determined by veterinary staff based on clinical signs, in particular ocular and/or nasal discharge. Control cats were 2.4 (CI: 1.35-4.15) times more likely to develop upper respiratory disease over time than gentled cats (P<0.0001). It is concluded that gentling anxious cats in animal shelters can induce positive affect (contentment), increase production of S-IgA, and reduce the incidence of upper respiratory disease.
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Affiliation(s)
- Nadine Gourkow
- Centre for Animal Welfare and Ethics, School of Veterinary Medicine, University of Queensland, Gatton, Queensland 4343, Australia
| | - Sara C Hamon
- Laboratory of Statistical Genetics, Rockefeller University, 1230 York Avenue, New York 10065, USA
| | - Clive J C Phillips
- Centre for Animal Welfare and Ethics, School of Veterinary Medicine, University of Queensland, Gatton, Queensland 4343, Australia.
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Liu C, Duan ML, Li A, Weng YB, Wang BE, Zhang SW. Effects of treatment with Tongfu Granules on intestinal cytokine levels in rats with endotoxemia. Shijie Huaren Xiaohua Zazhi 2010; 18:3515-3519. [DOI: 10.11569/wcjd.v18.i33.3515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To observe the changes in the levels of intestinal cytokines in rats with endotoxemia and to investigate the effects of treatment with Tongfu Granules on intestinal cytokine levels.
METHODS: One hundred and twenty male Wistar rats were randomly divided into three groups: control group, endotoxemia group and treatment group. Endotoxemia was induced by a single injection of LPS via the caudal vein. The levels of intestinal cytokines were measured by ELISA and radioimmunoassay.
RESULTS: The level of IFN-γ at 24 h was significantly lower in the endotoxemia group than in the control and treatment groups (32.93 ng/L ± 13.17 ng/L, 37.14 ng/L ± 6.70 ng/L vs 23.21 ng/L ± 8.65 ng/L, both P < 0.05). The level of IFN-γ at 12 h was significantly higher in the treatment group than in the control group (39.96 ng/L ± 8.26 ng/L vs 29.64 ng/L ± 10.78 ng/L, P < 0.05). The level of IL-4 significantly decreased in the endotoxemia group at 6 h but increased at 24 h compared with the control and treatment groups (115.56 ng/L ± 17.67 ng/L, 124.39 ng/L ± 26.02 ng/L vs 83.36 ng/L ± 27.24 ng/L, both P < 0.05 or 0.01). IL-4 level at 24 h was significantly higher in the endotoxemia group than in the control group (107.96 ng/L ± 10.86 ng/L vs 92.21 ng/L ± 17.62 ng/L, P < 0.05). The levels of Foxp3 at 12 and 24 h were significantly higher in the endotoxemia group than in the control group (0.28 g/L ± 0.037 g/L vs 0.24 g/L ± 0.041 g/L; 0.26 g/L ± 0.029 g/L vs 0.22 g/L ± 0.041 g/L, both P < 0.05). The level of Foxp3 at 24 h was significantly lower in the treatment group than in the endotoxemia group (0.23 g/L ± 0.030 g/L vs 0.26 g/L ± 0.029 g/L, P < 0.05). The levels of sIgA at 2, 12 and 24 h was significantly lower in the endotoxemia group than in the control and treatment groups (2.43 × 10-11 ± 0.23 × 10-11, 2.18 × 10-11 ± 0.27 × 10-11vs 1.66 × 10-11 ± 0.25 × 10-11; 2.76 × 10-11 ± 0.22 × 10-11, 2.64 × 10-11 ± 0.22 × 10-11vs 2.09 × 10-11 ± 0.20 × 10-11; 2.48 × 10-11 ± 0.31 × 10-11, 2.25 × 10-11 ± 0.44 × 10-11vs 1.88 × 10-11 ± 0.45 × 10-11, all P < 0.05). The level of sIgA at 2 h was significantly lower in the treatment group than in the control group.
CONCLUSION: Small intestinal mucosa injury and deregulated inflammatory reaction can result in intestinal immunodepression in rats with endotoxemia. Treatment with Tongfu Granules can protect intestinal immune function in rats with endotoxemia by reducing small intestinal mucosa injury and bidirectionally regulating inflammatory reaction.
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