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von Beek C, Fahlgren A, Geiser P, Di Martino ML, Lindahl O, Prensa GI, Mendez-Enriquez E, Eriksson J, Hallgren J, Fällman M, Pejler G, Sellin ME. A two-step activation mechanism enables mast cells to differentiate their response between extracellular and invasive enterobacterial infection. Nat Commun 2024; 15:904. [PMID: 38291037 PMCID: PMC10828507 DOI: 10.1038/s41467-024-45057-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 01/12/2024] [Indexed: 02/01/2024] Open
Abstract
Mast cells localize to mucosal tissues and contribute to innate immune defense against infection. How mast cells sense, differentiate between, and respond to bacterial pathogens remains a topic of ongoing debate. Using the prototype enteropathogen Salmonella Typhimurium (S.Tm) and other related enterobacteria, here we show that mast cells can regulate their cytokine secretion response to distinguish between extracellular and invasive bacterial infection. Tissue-invasive S.Tm and mast cells colocalize in the mouse gut during acute Salmonella infection. Toll-like Receptor 4 (TLR4) sensing of extracellular S.Tm, or pure lipopolysaccharide, causes a modest induction of cytokine transcripts and proteins, including IL-6, IL-13, and TNF. By contrast, type-III-secretion-system-1 (TTSS-1)-dependent S.Tm invasion of both mouse and human mast cells triggers rapid and potent inflammatory gene expression and >100-fold elevated cytokine secretion. The S.Tm TTSS-1 effectors SopB, SopE, and SopE2 here elicit a second activation signal, including Akt phosphorylation downstream of effector translocation, which combines with TLR activation to drive the full-blown mast cell response. Supernatants from S.Tm-infected mast cells boost macrophage survival and maturation from bone-marrow progenitors. Taken together, this study shows that mast cells can differentiate between extracellular and host-cell invasive enterobacteria via a two-step activation mechanism and tune their inflammatory output accordingly.
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Affiliation(s)
- Christopher von Beek
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Anna Fahlgren
- Department of Molecular Biology, Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå Centre for Microbial Research (UCMR), Umeå University, Umeå, Sweden
| | - Petra Geiser
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | | | - Otto Lindahl
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Grisna I Prensa
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Erika Mendez-Enriquez
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Jens Eriksson
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Jenny Hallgren
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Maria Fällman
- Department of Molecular Biology, Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå Centre for Microbial Research (UCMR), Umeå University, Umeå, Sweden
| | - Gunnar Pejler
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden.
| | - Mikael E Sellin
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden.
- Science for Life Laboratory, Uppsala, Sweden.
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He L, Yi W, Huang X, Long H, Lu Q. Chronic Urticaria: Advances in Understanding of the Disease and Clinical Management. Clin Rev Allergy Immunol 2021; 61:424-448. [PMID: 34529248 DOI: 10.1007/s12016-021-08886-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2021] [Indexed: 12/25/2022]
Abstract
Chronic urticaria (CU) is a common skin condition characterized by the recurrence of wheals, with or without angioedema, which lasts for at least 6 weeks. Owing to its pruritus and incurability, this disease adversely affects the patients' physical and mental health and diminishes the quality of life. CU is generally classified into two subtypes based on the relevance of eliciting factors: chronic spontaneous urticaria (CSU) and chronic inducible urticaria (CIndU), the latter of which is further divided into several subtypes. To improve the understanding and clinical management of this highly heterogeneous disorder, the EAACI/GA2LEN/EDF/WAO guideline was developed and published in 2018 based on evidence and expert consensus. The diagnostic and treatment algorithms proposed by the guideline have largely facilitated dermatologists in clinical practice. However, several questions remained unsolved and have been widely investigated in the recent years. First, a better understanding of the association between chronic urticaria and its potential underlying causes or eliciting factors such as autoimmunity, infections, coagulation aberrance, and vitamin D deficiency is warranted. This would lead to updates in the diagnostic and treatment procedures of different subtypes of chronic urticaria. Secondly, treatment for recalcitrant cases, especially those resistant to or intolerant of second-generation antihistamines and (or) omalizumab, calls for novel therapeutic measures or strategies. In the present review, we summarized recent advances in the understanding and management of both CSU and CIndU, with special emphasis on their underlying causes or eliciting factors, pathogenic mechanisms, potential targets for intervention, and advances in treatment strategies.
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Affiliation(s)
- Liting He
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, 139 Middle Renmin Road, Hunan, 410011, Changsha, China
| | - Wanyu Yi
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, 139 Middle Renmin Road, Hunan, 410011, Changsha, China
| | - Xin Huang
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, 139 Middle Renmin Road, Hunan, 410011, Changsha, China
| | - Hai Long
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, 139 Middle Renmin Road, Hunan, 410011, Changsha, China.
| | - Qianjin Lu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, The Second Xiangya Hospital of Central South University, 139 Middle Renmin Road, Hunan, 410011, Changsha, China.,Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, 210042, Jiangsu, China
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3
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Guo Y, Li HM, Zhu WQ, Li Z. Role of Helicobacter pylori Eradication in Chronic Spontaneous Urticaria: A Propensity Score Matching Analysis. Clin Cosmet Investig Dermatol 2021; 14:129-136. [PMID: 33584099 PMCID: PMC7876511 DOI: 10.2147/ccid.s293737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 12/26/2020] [Indexed: 11/25/2022]
Abstract
Objective To investigate the role of Helicobacter pylori (HP) eradication in chronic spontaneous urticaria (CSU) treatment. Methods Retrospective analysis was performed on the clinical data of 522 patients with CSU who underwent a HP breath test in Hangzhou Third People’s Hospital between January 2018 and December 2019. The CSU-HP(+) group consisted of patients with CSU and HP infection, who were treated with antihistamines combined with HP eradication therapy. The CSU-HP(-) group consisted of patients with CSU alone, who were treated with antihistamines. Propensity score matching (PSM) analysis, using the nearest neighbor matching method on a 1:1 basis, was performed to ensure the characteristics of the CSU-HP(+) and CSU-HP(-) groups were similar. Factors, including age, gender, white blood cells, red blood cells, platelets, alanine transaminase, creatinine, immunoglobulin E, and pre-treatment urticaria activity score (UAS), were matched to obtain a balanced cohort of patients in each group. Therapeutic effects were compared after matching. t-tests, Χ2 test, and McNemar’s test were used for comparison between the two groups before and after matching. Results Patients in the CSU-HP(+) group reported significantly more gastrointestinal symptoms than those in the CSU-HP(-) group. UAS scores in the second week of treatment were significantly different between the two groups. After 3 months, the recurrence rate in the CSU-HP(+) group was lower than in the CSU-HP(-) group. Conclusion Eradication of HP infection in patients with CSU helps relieve gastrointestinal symptoms, improves the therapeutic effect of CSU within 2 weeks, and reduces the recurrence rate 3 months after treatment.
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Affiliation(s)
- Yan Guo
- Department of Gastroenterology, Hangzhou Third People's Hospital, Hangzhou, 310009, People's Republic of China
| | - Hua-Ming Li
- Department of Gastroenterology, Hangzhou Third People's Hospital, Hangzhou, 310009, People's Republic of China
| | - Wei-Qin Zhu
- Department of Gastroenterology, Hangzhou Third People's Hospital, Hangzhou, 310009, People's Republic of China
| | - Zhen Li
- Department of Gastroenterology, Hangzhou Third People's Hospital, Hangzhou, 310009, People's Republic of China
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4
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Watanabe J, Shimamoto J, Kotani K. The Effects of Antibiotics for Helicobacter pylori Eradication or Dapsone on Chronic Spontaneous Urticaria: A Systematic Review and Meta-Analysis. Antibiotics (Basel) 2021; 10:antibiotics10020156. [PMID: 33557074 PMCID: PMC7913800 DOI: 10.3390/antibiotics10020156] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 01/19/2023] Open
Abstract
Background: Chronic spontaneous urticaria (CSU) is a disease with wheals and/or angioedema. Some drugs, especially antibiotics for Helicobacter pylori (H. pylori) eradication and the sulfone antibiotic dapsone, may be candidates for treating CSU. The present study assessed the efficacy of these antibiotic therapies for CSU. Methods: Databases (MEDLINE, the Cochrane Central Register of Controlled Trials, EMBASE, the World Health Organization International Clinical Trials Platform Search Portal and ClinicalTrials.gov) were searched until October 2020. Study selection, data abstraction and quality assessments were independently performed using the Grading of Recommendations Assessment, Development and Evaluation approach. The outcomes were the remission of CSU-related symptoms, activities and adverse events due to antibiotics for H. pylori eradication or dapsone. Results: Nine randomized controlled trials (RCTs; 361 patients) were included. The antibiotics for H. pylori eradication increased the remission rate (risk ratio (RR) = 3.99, 95% confidence interval (CI) = 1.31 to 12.14; I2 = 0%), but dapsone did not (RR = 1.15, 95% CI = 0.74 to 1.78). Antibiotics for H. pylori eradication (standard mean difference (SMD) = 1.49, 95% CI = 0.80 to 2.18; I2 = 69%) and dapsone (SMD = 7.00, 95% CI = 6.92 to 7.08; I2 = 0%) improved symptoms. The evidence of certainty was moderate. Dapsone was associated with mild adverse events, whereas H. pylori eradication was not. Conclusion: Antibiotics, especially those for H. pylori eradication, improved the remission rate and symptoms of CSU with few adverse events. Further studies are needed.
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Affiliation(s)
| | | | - Kazuhiko Kotani
- Correspondence: author: ; Tel.: +81-285-58-7394; Fax: +81-285-44-0628
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5
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Ierardi E, Losurdo G, Giorgio F, Di Leo A. Might helicobacter pylori play a role in allergic or cross-reaction related disorders? Expert Rev Gastroenterol Hepatol 2020; 14:643-646. [PMID: 32510247 DOI: 10.1080/17474124.2020.1780119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Enzo Ierardi
- Gastroenterology Section, Department of Emergency and Organ Transplantation, University of Bari , Bari, Italy
| | - Giuseppe Losurdo
- Gastroenterology Section, Department of Emergency and Organ Transplantation, University of Bari , Bari, Italy
| | - Floriana Giorgio
- Gastroenterology Section, Department of Emergency and Organ Transplantation, University of Bari , Bari, Italy
| | - Alfredo Di Leo
- Gastroenterology Section, Department of Emergency and Organ Transplantation, University of Bari , Bari, Italy
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6
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Exacerbating Factors in Chronic Spontaneous Urticaria. CURRENT TREATMENT OPTIONS IN ALLERGY 2020. [DOI: 10.1007/s40521-020-00254-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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7
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Bansal CJ, Bansal AS. Stress, pseudoallergens, autoimmunity, infection and inflammation in chronic spontaneous urticaria. Allergy Asthma Clin Immunol 2019; 15:56. [PMID: 31528163 PMCID: PMC6737621 DOI: 10.1186/s13223-019-0372-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 09/04/2019] [Indexed: 02/06/2023] Open
Abstract
Chronic spontaneous urticaria (CSU) is often associated with organ specific autoimmunity but is rarely caused by food allergy. Colourings and preservatives in pre-packaged foods, so called pseudoallergens, have also been implicated. Factors that promote inflammation or reduce anti-inflammatory mechanisms may however, predispose susceptible individuals to CSU. Chronic underlying infection and mental and emotional stress can sometimes precede the onset of CSU and once established can exacerbate the symptoms. There is early evidence of dysbiosis within the gastrointestinal tract in people with CSU and reduced levels of vitamin D are also evident. The latter may be related to the importance of vitamin D3 in increasing T regulatory function which can control a tendency to autoimmunity. It is quite possible that a state of on-going chronic inflammation with reduced anti-oxidant mechanisms may underlie the not infrequent association between CSU and metabolic syndrome. Effective treatment of CSU should involve the use of anti-histamines, intermittent steroids and anti-IgE therapy. For recalcitrant disease immune modulatory therapy has a place. However, talking therapies that reduce stress and anxiety, vitamin D3 supplementation, correction of intestinal dysbiosis and treatment of any chronic infection should also be considered.
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8
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Caffarelli C, Paravati F, El Hachem M, Duse M, Bergamini M, Simeone G, Barbagallo M, Bernardini R, Bottau P, Bugliaro F, Caimmi S, Chiera F, Crisafulli G, De Ranieri C, Di Mauro D, Diociaiuti A, Franceschini F, Gola M, Licari A, Liotti L, Mastrorilli C, Minasi D, Mori F, Neri I, Pantaleo A, Saretta F, Tesi CF, Corsello G, Marseglia GL, Villani A, Cardinale F. Management of chronic urticaria in children: a clinical guideline. Ital J Pediatr 2019; 45:101. [PMID: 31416456 PMCID: PMC6694633 DOI: 10.1186/s13052-019-0695-x] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 08/01/2019] [Indexed: 12/12/2022] Open
Abstract
The aim of this guidance is to provide recommendations to clinicians and other interested parties on chronic urticaria in children. The Italian Society for Pediatrics (SIP), the Italian Society for Allergy and Immunology (SIAIP), the Italian Society for Pediatric dermatology (SIDerP) convened a multidisciplinary panel that prepared clinical guidelines for diagnosis and management of chronic urticaria in childhood. Key questions on epidemiology, natural history, diagnosis, and management were developed. The literature was systematically searched and evaluated, recommendations were rated and algorithms for diagnosis and treatment were developed. The recommendations focus on identification of diseases and comorbidities, strategies to recognize triggering factors, improvement of treatment by individualized care.
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Affiliation(s)
- Carlo Caffarelli
- Clinica Pediatrica, Dipartimento Medicina e Chirurgia, Università di Parma, Parma, Italy
| | - Francesco Paravati
- Pediatric Unit, Maternal Infant Department, Azienda Sanitaria Provinciale Crotone, Crotone, Italy
| | - Maya El Hachem
- Dermatology Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Marzia Duse
- Department of Pediatrics, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | | | - Giovanni Simeone
- Primary care Pediatrician, Local Health Unit of Brindisi, Brindisi, Italy
| | - Massimo Barbagallo
- Pediatric Unit, Azienda di rilievo nazionale ARNAS "GARIBALDI", Catania, Italy
| | | | - Paolo Bottau
- Pediatric and Neonatology Unit, Imola Hospital, Imola, BO, Italy
| | - Filomena Bugliaro
- FEDERASMA e Allergie Onlus - Federazione Italiana Pazienti, Prato, Italy
| | - Silvia Caimmi
- Pediatric Clinic, Foundation IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Fernanda Chiera
- Pediatric Unit, Maternal Infant Department, Azienda Sanitaria Provinciale Crotone, Crotone, Italy
| | - Giuseppe Crisafulli
- UO Allergologia, Dipartimento di Pediatria, Università di Messina, Messina, Italy
| | | | - Dora Di Mauro
- Clinica Pediatrica, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Andrea Diociaiuti
- Dermatology Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Massimo Gola
- Allergological and Pediatric Dermatology Unit, AUTC and University of Florence, Florence, Italy
| | - Amelia Licari
- Pediatric Clinic, Foundation IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Lucia Liotti
- Department of Pediatrics, Senigallia Hospital, Senigallia, Italy
| | - Carla Mastrorilli
- Department of Pediatrics and Emergency, Pediatric Allergy and Pulmunology Unit, Azienda Ospedaliera-Universitaria "Consorziale-Policlinico", Ospedale Pediatrico Giovanni XXIII, Bari, Italy
| | - Domenico Minasi
- UOC di Pediatria Azienda Ospedaliera "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - Francesca Mori
- Allergy Unit, Department of Pediatric Medicine, Anna Meyer Children's University Hospital, Florence, Italy
| | - Iria Neri
- Dermatology Unit, University of Bologna, Bologna, Italy
| | - Aurelia Pantaleo
- Clinica Pediatrica, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Francesca Saretta
- Pediatric Department, AAS2 Bassa Friulana-Isontina, Palmanova-Latisana, Italy.,Pediatric Allergy Unit, Department of Medicine, Udine, Italy
| | - Carlo Filippo Tesi
- FEDERASMA e Allergie Onlus - Federazione Italiana Pazienti, Prato, Italy
| | - Giovanni Corsello
- Clinica Pediatrica Università degli Studi di Palermo, Palermo, Italy
| | - Gian Luigi Marseglia
- Pediatric Clinic, Foundation IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Alberto Villani
- UOC di Pediatria Generale e Malattie Infettive, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Fabio Cardinale
- Department of Pediatrics and Emergency, Pediatric Allergy and Pulmunology Unit, Azienda Ospedaliera-Universitaria "Consorziale-Policlinico", Ospedale Pediatrico Giovanni XXIII, Bari, Italy.
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9
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Antia C, Baquerizo K, Korman A, Bernstein JA, Alikhan A. Urticaria: A comprehensive review. J Am Acad Dermatol 2018; 79:599-614. [DOI: 10.1016/j.jaad.2018.01.020] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Helicobacter pylori-induced IL-33 modulates mast cell responses, benefits bacterial growth, and contributes to gastritis. Cell Death Dis 2018; 9:457. [PMID: 29691371 PMCID: PMC5915443 DOI: 10.1038/s41419-018-0493-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 03/15/2018] [Accepted: 03/16/2018] [Indexed: 12/24/2022]
Abstract
Interleukin (IL)-induced inflammatory responses are critical for the pathogenesis of Helicobacter pylori (H. pylori)-induced gastritis. IL-33 represents a recently discovered proinflammatory cytokine involved in inflammatory diseases, but its relevance to H. pylori-induced gastritis is unknown. Here, we found that gastric IL-33 mRNA and protein expression were elevated in gastric mucosa of both patients and mice infected with H. pylori, which is positively correlated with bacterial load and the degree of gastritis. IL-33 production was promoted via extracellular regulated protein kinases (ERK) signaling pathway activation by gastric epithelial cells in a cagA-dependent manner during H. pylori infection, and resulted in increased inflammation and bacteria burden within the gastric mucosa. Gastric epithelial cell-derived IL-33 promoted TNF-α production from mast cells in vitro, and IL-33 increased TNF-α production in vivo. Increased TNF-α inhibited gastric epithelial cell proliferation, conducing to the progress of H. pylori-associated gastritis and bacteria colonization. This study defined a patent regulatory networks involving H. pylori, gastric epithelial cell, IL-33, mast cell, and TNF-α, which jointly play a pathological effect within the gastric circumstances. It may be a valuable strategy to restrain this IL-33-dependent pathway in the treatment of H. pylori-associated gastritis.
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11
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Eradication of Helicobacter pylori, as add-on therapy, has a significant, but temporary influence on recovery in chronic idiopathic urticaria: a placebo-controlled, double blind trial in the Polish population. Postepy Dermatol Alergol 2018; 35:151-155. [PMID: 29760614 PMCID: PMC5949544 DOI: 10.5114/ada.2018.75236] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 01/26/2017] [Indexed: 02/07/2023] Open
Abstract
Introduction The infectious factor like Helicobacter pylori (HP) has been thought to trigger the vicious circle of chronic idiopathic urticaria (CIU), therefore its eradication could modify the course of the disease. Aim To reveal the influence of HP eradication on CIU clinical course. Material and methods Sixty-four CIU patients, receiving fexofenadine, as the basic treatment, took part in the research, divided into 3 groups: HP patients treated by eradication, HP patients receiving placebo, and patients without bacteria. Gastroscopy, urease test and histopathology were done to detect HP. Patients with HP were randomized and received eradication treatment or placebo. The efficacy of eradication was checked after 6 weeks by means of another gastroscopy, urease test and histopathology. In the 6th week and in the 4th and 6th month after eradication, the symptoms were evaluated basing on the score symptom scale. Results Helicobacter pylori did not occur more frequently in CIU patients than in the healthy population. A statistically significant clinical improvement of CIU symptoms was observed in the 6th week after eradication as compared to the group receiving placebo (p = 0.02) and patients who were not infected (p = 0.02). Further observation in the eradicated patients group revealed the rebound phenomenon – worsening of the clinical state (p = 0.001), which in the 4th month did not differ from the patients not infected or patients receiving placebo. Conclusions Although HP occurs as frequently in CIU patients as in the healthy population, eradication, added to basic antihistaminic treatment, has a significant influence on CIU patients’ recovery parallel to the reduction of stomach inflammation features.
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12
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Sun H, Yuan H, Tan R, Li B, Guo G, Zhang J, Jing H, Qin Y, Zhao Z, Zou Q, Wu C. Immunodominant antigens that induce Th1 and Th17 responses protect mice against Helicobacter pylori infection. Oncotarget 2018; 9:12050-12063. [PMID: 29552292 PMCID: PMC5844728 DOI: 10.18632/oncotarget.23927] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 10/30/2017] [Indexed: 12/14/2022] Open
Abstract
Helicobacter pylori has infected more than half of the world's population, causing gastritis, gastric ulcers, gastric mucosa-associated lymphoid tissue lymphoma and gastric cancer. The oral recombinant Helicobacter pylori vaccine currently used has made great progress in addressing this problem, however, its efficacy and longevity still need to be improved. Th1 and Th17 cells play essential roles in local protection against Helicobacter pylori in the stomach mucosa. Additionally, protective immunodominant antigens are the preferred for a vaccine. In this work, Helicobacter pylori whole cell lysate was separated into 30 groups based on molecular weight by molecular sieve chromatography. The group best promoting CD4 T cells proliferation was selected and evaluated by immunization. The detail proteins were then analyzed by LC-MS/MS and expressed in Escherichia coli. Eleven proteins were selected and the dominant ones were demonstrated. As a result, three protective immunodominant antigens, inosine 5'-monophosphate dehydrogenase, type II citrate synthase, and urease subunit beta, were selected from Helicobacter pylori whole cell. Two of them (inosine 5'-monophosphate dehydrogenase and type II citrate synthase) were newly identified, and one (urease subunit beta) was confirmed as previously reported. The mixture of the three antigens showed satisfactory protective efficiency, with significant lower H. pylori colonization level (P < 0.001) and stronger Th1 (P < 0.001) and Th17 (P < 0.001) responses than PBS control group. Thus, inosine 5'-monophosphate dehydrogenase, type II citrate synthase, and urease subunit beta are three protective antigens inducing dominant Th1 and Th17 responses to defend against Helicobacter pylori infection.
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Affiliation(s)
- Heqiang Sun
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Hanmei Yuan
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Ranjing Tan
- Department of Dermatology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, PR China
| | - Bin Li
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Gang Guo
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Jinyong Zhang
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Haiming Jing
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Yi Qin
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Zhuo Zhao
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Quanming Zou
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
| | - Chao Wu
- National Engineering Research Center of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Third Military Medical University, Chongqing, PR China
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de Korwin JD, Ianiro G, Gibiino G, Gasbarrini A. Helicobacter pylori infection and extragastric diseases in 2017. Helicobacter 2017; 22 Suppl 1. [PMID: 28891133 DOI: 10.1111/hel.12411] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The huge variety of extragastric diseases linked to Helicobacter pylori infection is widely known, and new studies are conducted every year on this topic. Neurological disorders and metabolic syndrome are some of the main issues debated in the most recent literature. Articles on the association of H. pylori with skin diseases, inflammatory bowel diseases, immunologic impairment, kidney dysfunction, allergic asthma, and respiratory diseases have been published as well. In this perspective, eradication therapy for this infection could become a mandatory measure in prevention strategy.
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Affiliation(s)
- Jean-Dominique de Korwin
- Department of Internal Medicine, University of Lorraine and University Hospital of Nancy, Nancy, France
| | - Gianluca Ianiro
- Department of Internal Medicine, Gastroenterology and Hepatology, Agostino Gemelli Hospital, Catholic University of Rome, Milano, Italy
| | - Giulia Gibiino
- Department of Internal Medicine, Gastroenterology and Hepatology, Agostino Gemelli Hospital, Catholic University of Rome, Milano, Italy
| | - Antonio Gasbarrini
- Department of Internal Medicine, Gastroenterology and Hepatology, Agostino Gemelli Hospital, Catholic University of Rome, Milano, Italy
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