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Melnik P, Weintraub I, Shamaly H, Cohen S, Greenberg-Kushnir N, Schiby G, Weiss B. Helicobacter pylori-Associated Extranodal Marginal Zone Lymphoma of Mucosa-Associated Tissue in Children: A Multicenter Case Series. Helicobacter 2024; 29:e13113. [PMID: 39072863 DOI: 10.1111/hel.13113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 06/13/2024] [Accepted: 07/02/2024] [Indexed: 07/30/2024]
Abstract
OBJECTIVE Data regarding Helicobacter pylori (H. pylori)-associated mucosa-associated lymphoid tissue (MALT) lymphoma in children are lacking. We aimed to characterize the diagnosis, management, and outcome of H. pylori-associated MALT lymphoma in pediatric patients. STUDY DESIGN A retrospective multicenter case series of the pediatric patients with H. pylori-associated MALT lymphoma who were diagnosed during 2010-2022. RESULTS Five children, of them three females, were identified. The mean age at diagnosis was 14.6 ± 2.4 years. The clinical presentation included abdominal pain (5/5), nausea (3/5), weight loss, night sweats, recurrent fever (1/5), and iron deficiency anemia (2/5). Endoscopic findings in both the stomach antrum and body included a fragile and hyperemic mucosa, large ulcers, extensive nodularity, and exudate. All the biopsies from the gastric mucosa were consistent with MALT lymphoma, and positive for H. pylori (by Giemsa stain). All the patients received triple therapy (amoxicillin, nitroimidazole, or a macrolide, and a proton pump inhibitor, for 14 days), and achieved H. pylori eradication. All had complete resolution of histological findings at the last follow-up. In one patient, the histology of MALT lymphoma persisted 12 months after H. pylori eradication, and only the 18-month-biopsy was free of residual disease. CONCLUSIONS In this series of pediatric MALT lymphoma, complete resolution of disease occurred in all the patients, yet histological remission was delayed in one. This supports the importance of endoscopic follow-up.
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Affiliation(s)
- Pesah Melnik
- Pediatric Gastroenterology and Nutrition Unit, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel
| | - Ilana Weintraub
- Pediatric Gastroenterology and Nutrition Unit, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel
| | | | - Shlomi Cohen
- Pediatric Gastroenterology Unit, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Noa Greenberg-Kushnir
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Pediatric Oncology, Sheba Medical Center, Tel Hashomer, Israel
| | - Ginette Schiby
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Pathology, Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - Batia Weiss
- Pediatric Gastroenterology and Nutrition Unit, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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2
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Zhang C, Chen Y, Long Y, Zheng H, Jing J, Pan W. Helicobacter pylori and Gastrointestinal Cancers: Recent Advances and Controversies. Clin Med Insights Oncol 2024; 18:11795549241234637. [PMID: 38558880 PMCID: PMC10979532 DOI: 10.1177/11795549241234637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 02/01/2024] [Indexed: 04/04/2024] Open
Abstract
Helicobacter pylori (H pylori), a gastric bacterium, has been extensively studied for its association with gastritis, peptic ulcers, and gastric cancer. However, recent evidence suggests its potential implications beyond the stomach, linking it to other gastrointestinal malignancies, such as esophageal cancer, liver cancer, pancreatic cancer, gallbladder cancer, and colorectal cancer. In light of the expanding research landscape and the increasing interest in exploring H pylori broader role in gastrointestinal tumorigenesis, this comprehensive review aims to elucidate the relationship between H pylori and gastrointestinal tumors. This review encompasses recent epidemiological studies, research progress, and emerging perspectives, providing a comprehensive assessment of the relationship between H pylori and gastrointestinal tumors. The findings highlight the captivating world of H pylori and its intricate involvement in gastrointestinal malignancies.
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Affiliation(s)
- Chuandong Zhang
- Cancer Center, Department of Gastroenterology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
- Department of Clinical Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Yuqi Chen
- Cancer Center, Department of Gastroenterology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
- Department of Clinical Medicine, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Yan Long
- Cancer Center, Department of Gastroenterology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Huimin Zheng
- Cancer Center, Department of Gastroenterology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
- Department of Clinical Medicine, Bengbu Medical College, Bengbu, China
| | - Jiyong Jing
- Cancer Center, Department of Gastroenterology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
| | - Wensheng Pan
- Cancer Center, Department of Gastroenterology, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, China
- Zhejiang Provincial Engineering Laboratory of Diagnosis, Treatment and Pharmaceutical Development of Gastrointestinal Tract Tumors, Hangzhou, China
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3
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Ali A, AlHussaini KI. Helicobacter pylori: A Contemporary Perspective on Pathogenesis, Diagnosis and Treatment Strategies. Microorganisms 2024; 12:222. [PMID: 38276207 PMCID: PMC10818838 DOI: 10.3390/microorganisms12010222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/07/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024] Open
Abstract
Helicobacter pylori (H. pylori) is a Gram-negative bacterium that colonizes the gastric mucosa and is associated with various gastrointestinal disorders. H. pylori is a pervasive pathogen, infecting nearly 50% of the world's population, and presents a substantial concern due to its link with gastric cancer, ranking as the third most common cause of global cancer-related mortality. This review article provides an updated and comprehensive overview of the current understanding of H. pylori infection, focusing on its pathogenesis, diagnosis, and treatment strategies. The intricate mechanisms underlying its pathogenesis, including the virulence factors and host interactions, are discussed in detail. The diagnostic methods, ranging from the traditional techniques to the advanced molecular approaches, are explored, highlighting their strengths and limitations. The evolving landscape of treatment strategies, including antibiotic regimens and emerging therapeutic approaches, is thoroughly examined. Through a critical synthesis of the recent research findings, this article offers valuable insights into the contemporary knowledge of Helicobacter pylori infection, guiding both clinicians and researchers toward effective management and future directions in combating this global health challenge.
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Affiliation(s)
- Asghar Ali
- Clinical Biochemistry Laboratory, Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Khalid I. AlHussaini
- Department of Internal Medicine, College of Medicine, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 4233-13317, Saudi Arabia
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4
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Alhalabi M, Almokdad R. Efficacy of a 2-week therapy with levofloxacin concomitant versus a levofloxacin sequential regimen for Helicobacter pylori infection in the Syrian population: a study protocol for randomized controlled trial. Trials 2024; 25:55. [PMID: 38225650 PMCID: PMC10789050 DOI: 10.1186/s13063-024-07906-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 01/02/2024] [Indexed: 01/17/2024] Open
Abstract
BACKGROUND Treating Helicobacter pylori is becoming increasingly difficult with the development of bacterial resistance to many established treatment regimens. As a result, researchers are constantly looking for novel and effective treatments. This trial aims to establish the efficacy of levofloxacin-based sequential treatment regimen and concomitant levofloxacin-based regimen as empirical first-line therapy in the Syrian population. METHOD This is an open-label, prospective, single-center, parallel, active-controlled, superiority, randomized clinical trial. The recruitment will target Helicobacter pylori-positive males and females between the ages of 18 and 65 to evaluate the efficacy of empirical first-line therapy in the Syrian population. We are planning to recruit up to 300 patients which is twice the required sample size. One hundred fifty individuals will be randomly assigned to undergo either a sequential levofloxacin-based treatment regimen or a concomitant levofloxacin-based regimen. High-dose dual therapy (proton-pump inhibitor and amoxicillin) will be the rescue therapy in the event of first-line failure. The first-line eradication rate in both groups is the primary outcome, and one of the secondary outcomes is the overall eradication rate of high-dose dual therapy in the event of first-line treatment protocol failure. Intention-to-treat analysis and per-protocol analysis will be used to evaluate the eradication rates of Helicobacter pylori for first-line treatment protocols. DISCUSSION For the first time in the Syrian population, this randomized controlled trial will provide objective and accurate evidence about the efficacy of a sequential levofloxacin-based treatment regimen. TRIAL REGISTRATION ClinicalTrials.gov NCT06065267 . Registered on October 3, 2023. Prospective registered. Enrollment of the first participant has not started yet.
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Affiliation(s)
- Marouf Alhalabi
- Gastroenterology Department, Damascus Hospital, Almujtahed Street, Damascus, Syria.
| | - Rasha Almokdad
- Gastroenterology Department, Damascus Hospital, Almujtahed Street, Damascus, Syria
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5
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Long S, Vila J, Meikle D, Ng WF, Svec A, Televantou D, Wood KM, Bacon CM, Bomken S. Extranodal marginal zone lymphoma as the presenting feature of paediatric Sjögren syndrome. Pediatr Blood Cancer 2023; 70:e30476. [PMID: 37269481 DOI: 10.1002/pbc.30476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 05/19/2023] [Indexed: 06/05/2023]
Affiliation(s)
- Sarah Long
- Department of Paediatric Haematology and Oncology, The Great North Children's Hospital, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Josephine Vila
- Department of Rheumatology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - David Meikle
- Ear, Nose and Throat Service, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Wan-Fai Ng
- Department of Rheumatology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Alexandr Svec
- Department of Cellular Pathology, South Tees Hospitals NHS Foundation Trust, Middlesbrough, UK
| | - Despina Televantou
- Department of Cellular Pathology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Katrina M Wood
- Department of Cellular Pathology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Chris M Bacon
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
- Department of Cellular Pathology, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Simon Bomken
- Department of Paediatric Haematology and Oncology, The Great North Children's Hospital, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
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6
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Zhang Z, Liu F, Ai F, Chen X, Liu R, Zhang C, Fang N, Fu T, Wang X, Tang A. The efficacy and mechanism of vonoprazan-containing triple therapy in the eradication of Helicobacter pylori. Front Pharmacol 2023; 14:1143969. [PMID: 37214450 PMCID: PMC10196117 DOI: 10.3389/fphar.2023.1143969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 04/07/2023] [Indexed: 05/24/2023] Open
Abstract
Purpose: Vonoprazan (VPZ) produces a strong acid-inhibitory effect, which can potentially eradicate Helicobacter Pylori (H. pylori). We aimed to assess whether a 14-day VPZ-containing triple therapy was safe and effective in the Chinese population and the potential mechanism. Methods: Enrolled patients confirmed to be infected with H. pylori were randomly divided into four groups: VPZ + doxycycline + furazolidone, VPZ + doxycycline + amoxicillin, esomeprazole (EPZ) + bismuth + doxycycline + furazolidone, and EPZ + colloidal bismuth + doxycycline + amoxicillin for 14 days. The eradication rate, medication adherence, and incidence of adverse events (AEs) were evaluated. Inhibition of H. pylori by VPZ and EPZ in vitro was assessed. H. pylori treated with appropriate concentrations of VPZ and EPZ were sequenced by transcriptome analysis to explore the antibacterial mechanism. Results: A higher eradication rate were observed in VPZ-containing triple therapy. No obvious differences were observed in medication adherence or the incidence of AEs. VPZ had no direct inhibitory effect on H. pylori, whereas EPZ directly inhibited H. pylori may through downregulated genes related to the ribosome. Conclusion: In the Chinese population, 14-day VPZ-containing triple therapy was safe and more effective and can be used clinically as first-line H. pylori treatment. Clinical Trial Registration: ClinicalTrials.gov, identifier NCT05097846.
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Affiliation(s)
- Zinan Zhang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Fen Liu
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Central South University, Changsha, Hunan, China
| | - Feiyan Ai
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Central South University, Changsha, Hunan, China
| | - Xiong Chen
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Rui Liu
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Chao Zhang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ning Fang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Tian Fu
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xiaoyan Wang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Central South University, Changsha, Hunan, China
| | - Anliu Tang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Central South University, Changsha, Hunan, China
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7
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Marsilio S, Freiche V, Johnson E, Leo C, Langerak AW, Peters I, Ackermann MR. ACVIM consensus statement guidelines on diagnosing and distinguishing low-grade neoplastic from inflammatory lymphocytic chronic enteropathies in cats. J Vet Intern Med 2023; 37:794-816. [PMID: 37130034 PMCID: PMC10229359 DOI: 10.1111/jvim.16690] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 03/10/2023] [Indexed: 05/03/2023] Open
Abstract
BACKGROUND Lymphoplasmacytic enteritis (LPE) and low-grade intestinal T cell lymphoma (LGITL) are common diseases in older cats, but their diagnosis and differentiation remain challenging. OBJECTIVES To summarize the current literature on etiopathogenesis and diagnosis of LPE and LGITL in cats and provide guidance on the differentiation between LPE and LGITL in cats. To provide statements established using evidence-based approaches or where such evidence is lacking, statements based on consensus of experts in the field. ANIMALS None. METHODS A panel of 6 experts in the field (2 internists, 1 radiologist, 1 anatomic pathologist, 1 clonality expert, 1 oncologist) with the support of a human medical immunologist, was formed to assess and summarize evidence in the peer-reviewed literature and complement it with consensus recommendations. RESULTS Despite increasing interest on the topic for clinicians and pathologists, few prospective studies were available, and interpretation of the pertinent literature often was challenging because of the heterogeneity of the cases. Most recommendations by the panel were supported by a moderate or low level of evidence. Several understudied areas were identified, including cellular markers using immunohistochemistry, genomics, and transcriptomic studies. CONCLUSIONS AND CLINICAL IMPORTANCE To date, no single diagnostic criterion or known biomarker reliably differentiates inflammatory lesions from neoplastic lymphoproliferations in the intestinal tract of cats and a diagnosis currently is established by integrating all available clinical and diagnostic data. Histopathology remains the mainstay to better differentiate LPE from LGITL in cats with chronic enteropathy.
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Affiliation(s)
- Sina Marsilio
- Department of Veterinary Medicine and EpidemiologyUC Davis School of Veterinary MedicineDavisCaliforniaUSA
| | - Valerie Freiche
- Ecole Nationale Vétérinaire d'AlfortCHUVA, Unité de Médecine InterneMaisons‐AlfortFrance
| | - Eric Johnson
- Department of Surgical & Radiological SciencesUC Davis School of Veterinary MedicineDavisCaliforniaUSA
| | - Chiara Leo
- Anicura Istituto Veterinario NovaraNovaraItaly
| | | | | | - Mark R. Ackermann
- Oregon Veterinary Diagnostic Laboratory, Oregon State UniversityCorvallisOregonUSA
- Present address:
US Department of AgricultureNational Animal Disease CenterAmesIowaUSA
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8
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Upadhyay Banskota S, Skupa SA, El-Gamal D, D’Angelo CR. Defining the Role of the Gut Microbiome in the Pathogenesis and Treatment of Lymphoid Malignancies. Int J Mol Sci 2023; 24:2309. [PMID: 36768631 PMCID: PMC9916782 DOI: 10.3390/ijms24032309] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 01/26/2023] Open
Abstract
The gut microbiome is increasingly being recognized as an important immunologic environment, with direct links to the host immune system. The scale of the gut microbiome's genomic repertoire extends the capacity of its host's genome by providing additional metabolic output, and the close communication between gut microbiota and mucosal immune cells provides a continued opportunity for immune education. The relationship between the gut microbiome and the host immune system has important implications for oncologic disease, including lymphoma, a malignancy derived from within the immune system itself. In this review, we explore past and recent discoveries describing the role that bacterial populations play in lymphomagenesis, diagnosis, and therapy. We highlight key relationships within the gut microbiome-immune-oncology axis that present exciting opportunities for directed interventions intended to shape the microbiome for therapeutic effect. We conclude with a limited summary of active clinical trials targeting the microbiome in hematologic malignancies, along with future directions on gut microbiome investigations within lymphoid malignancies.
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Affiliation(s)
- Shristi Upadhyay Banskota
- Division of Hematology and Oncology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Sydney A. Skupa
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Dalia El-Gamal
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Christopher R. D’Angelo
- Division of Hematology and Oncology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
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9
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Piorecka K, Kurjata J, Stanczyk WA. Acriflavine, an Acridine Derivative for Biomedical Application: Current State of the Art. J Med Chem 2022; 65:11415-11432. [PMID: 36018000 PMCID: PMC9469206 DOI: 10.1021/acs.jmedchem.2c00573] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Acriflavine (ACF) has been known for years as an antibacterial
drug. The identification of key oncogenic mechanisms has brought,
in recent years, a significant increase in studies on ACF as a multipurpose
drug that would improve the prognosis for cancer patients. ACF interferes
with the expression of the hypoxia inducible factor, thus acting on
metastatic niches of tumors and significantly enhancing the effects
of other anticancer therapies. It has been recognized as the most
potent HIF-1 inhibitor out of the 336 drugs approved by the FDA. This
work presents up-to-date knowledge about the mechanisms of action
of ACF and its related prodrug systems in the context of anticancer
and SARS-CoV-2 inhibitory properties. It explains the multitask nature
of this drug and suggests mechanisms of ACF’s action on the
coronavirus. Other recent reports on ACF-based systems as potential
antibacterial and antiviral drugs are also described.
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Affiliation(s)
- Kinga Piorecka
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences,Sienkiewicza 112, 90-363 Lodz, Poland
| | - Jan Kurjata
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences,Sienkiewicza 112, 90-363 Lodz, Poland
| | - Wlodzimierz A Stanczyk
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences,Sienkiewicza 112, 90-363 Lodz, Poland
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10
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Iwasaki T, Maruyama A, Inui Y, Sakurai T, Kawano T. In vitro transcytosis of Helicobacter pylori histidine-rich protein through gastric epithelial-like cells and the blood-brain barrier. Biosci Biotechnol Biochem 2022; 86:321-330. [PMID: 34935901 DOI: 10.1093/bbb/zbab221] [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: 09/22/2021] [Accepted: 12/07/2021] [Indexed: 11/14/2022]
Abstract
Recent epidemiological studies have supported the correlation between Helicobacter pylori infection and the development of Alzheimer's disease. HpHpn, a histidine-rich H. pylori protein, forms amyloid-like oligomers; it may be a pathogenic factor for Alzheimer's disease progression. HpHpn may also be transported from the gastric epithelium to the brain. However, HpHpn is secreted from H. pylori on the outer surface of gastric epithelia; therefore, the hypothesized movement of HpHpn across the gastric epithelium to the blood remains controversial. Here, we found the HpHpn showed acidic pH-dependent cellular uptake and subsequent secretion in human gastric epithelial-like carcinoma cells. Furthermore, HpHpn exhibited in vitro permeability across the blood-brain barrier. Although further in vivo experiments are required, our findings suggest that in vitro transcytosis of HpHpn in gastric epithelial cells and the blood-brain barrier may provide new insights into the correlation between H. pylori infections and Alzheimer's disease progression.
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Affiliation(s)
- Takashi Iwasaki
- Department of Bioresource Science, Faculty of Agriculture, Tottori University, Tottori, Japan
- Department of Agricultural Science, Graduate School of Sustainability Science, Tottori University, Tottori, Japan
| | - Aiki Maruyama
- Department of Bioresource Science, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Yurika Inui
- Department of Bioresource Science, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Toshihiko Sakurai
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori, Japan
| | - Tsuyoshi Kawano
- Department of Bioresource Science, Faculty of Agriculture, Tottori University, Tottori, Japan
- Department of Agricultural Science, Graduate School of Sustainability Science, Tottori University, Tottori, Japan
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11
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Ali SS, Abd Elnabi MK, Alkherkhisy MM, Hasan A, Li F, Khalil M, Sun J, El-Zawawy N. Exploring the potential of Cinnamomum zeylanicum oil against drug resistant Helicobacter pylori-producing cytotoxic genes. J Appl Biomed 2022; 20:22-36. [PMID: 35225438 DOI: 10.32725/jab.2022.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Thirty-one of sixty dyspeptic patients tested positive for Helicobacter pylori colonization in this study, as determined by histopathology and 16S rRNA. The cytotoxin-associated gene A (cagA) and vacuolating cytotoxin A (vacA) genes were found in 67.7 and 93.5% of H. pylori patients, respectively. The cagA gene was found to be associated with 100% of patients with duodenal erosion and ulceration identified via endoscopy examination. In addition, 86.7% of patients with cancerous and precancerous lesions, glandular atrophy, and intestinal metaplasia identified via histopathology examination. The vacA s1m1 mutation was associated with more severe forms of gastric erosion and ulceration, as well as the presence of precancerous and cancerous lesions. Eighteen (64.3%) of the twenty-eight isolates were classified as multi-drug resistant (MDR) or pan-drug resistant (PDR) H. pylori. Due to a resurgence of interest in alternative therapies derived from plants as a result of H. pylori resistance to the majority of commonly used antibiotics, the inhibitory activity of five essential oils extracted from some commonly used medicinal plants was evaluated in vitro against drug-resistant H. pylori clinical isolates. Cinnamomum zeylanicum essential oil demonstrated the highest anti-H. pylori activity when compared to the other essential oils tested. Cinnamaldehyde was the most abundant compound in C. zeylanicum (65.91%). The toxicological evaluation established the safety of C. zeylanicum oil for human use. As a result, C. zeylanicum essential oil may represent a novel antibacterial agent capable of combating drug-resistant H. pylori carrying cytotoxin genes.
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Affiliation(s)
- Sameh S Ali
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Manar K Abd Elnabi
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Mohammad M Alkherkhisy
- Department of Microbiology and Immunology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Abdulkarim Hasan
- Department of Pathology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Fanghua Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang Province 150090, China
| | - Maha Khalil
- Biology Department, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Jianzhong Sun
- Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Nessma El-Zawawy
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
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12
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Keikha M, Sahebkar A, Yamaoka Y, Karbalaei M. Helicobacter pylori cagA status and gastric mucosa-associated lymphoid tissue lymphoma: a systematic review and meta-analysis. JOURNAL OF HEALTH, POPULATION AND NUTRITION 2022; 41:2. [PMID: 34980267 PMCID: PMC8722127 DOI: 10.1186/s41043-021-00280-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/16/2021] [Indexed: 02/08/2023] Open
Abstract
Background Recent studies have investigated the role of Helicobacter pylori infection in the development of gastric mucosa-associated lymphoid tissue (MALT) lymphoma. It is estimated that approximately 0.1% of people infected with H. pylori develop gastric MALT lymphoma. However, the role of the CagA antigen, the highest causative agent of H. pylori, in increasing the risk of gastric MALT lymphoma remains unclear and controversial. A systematic review and meta-analysis were conducted to evaluate the effect of cagA status on the development of gastric MALT lymphoma. Methods All articles evaluating the status of the cagA gene in the development of gastric MALT lymphoma were collected using systematic searches in online databases, including PubMed, Scopus, Embase, and Google Scholar, regardless of publication date. The association between cagA and gastric MALT lymphoma was assessed using the odds ratio (OR) summary. In addition, a random-effects model was used in cases with significant heterogeneity. Results A total of 10 studies met our inclusion criteria, among which 1860 patients participated. No association between cagA status and the development of MALT lymphoma (extranodal marginal zone B-cell lymphoma) was found in this study (OR 1.30; 0.906–1.866 with 95% CIs; I2: 45.83; Q-value: 12.92). Surprisingly, a meaningful association was observed between cagA status and diffuse large B-cell lymphoma (OR 6.43; 2.45–16.84 with 95% CIs). We also observed an inverse association between vacA and gastric MALT lymphoma risk (OR 0.92; 0.57–1.50 with 95% CIs). Conclusions It seems that the infection with cagA-positive H. pylori strains does not have a meaningful effect on the gastric MALT lymphoma formation, while translocated CagA antigen into the B cells plays a crucial role in the development of diffuse large B-cell lymphoma.
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Affiliation(s)
- Masoud Keikha
- Department of Microbiology and Virology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Yoshio Yamaoka
- Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, Yufu, Oita, Japan.,Global Oita Medical Advanced Research Center for Health, Oita University, Yufu, Oita, Japan
| | - Mohsen Karbalaei
- Department of Microbiology and Virology, School of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran.
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13
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Keikha M, Karbalaei M. Probiotics as the live microscopic fighters against Helicobacter pylori gastric infections. BMC Gastroenterol 2021; 21:388. [PMID: 34670526 PMCID: PMC8527827 DOI: 10.1186/s12876-021-01977-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 10/15/2021] [Indexed: 02/07/2023] Open
Abstract
Background Helicobacter pylori (H. pylori) is the causative agent of stomach diseases such as duodenal ulcer and gastric cancer, in this regard incomplete eradication of this bacterium has become to a serious concern. Probiotics are a group of the beneficial bacteria which increase the cure rate of H. pylori infections through various mechanisms such as competitive inhibition, co-aggregation ability, enhancing mucus production, production of bacteriocins, and modulating immune response. Result In this study, according to the received articles, the anti-H. pylori activities of probiotics were reviewed. Based on studies, administration of standard antibiotic therapy combined with probiotics plays an important role in the effective treatment of H. pylori infection. According to the literature, Lactobacillus casei, Lactobacillus reuteri, Lactobacillus rhamnosus GG, and Saccharomyces boulardii can effectively eradicate H. pylori infection. Our results showed that in addition to decrease gastrointestinal symptoms, probiotics can reduce the side effects of antibiotics (especially diarrhea) by altering the intestinal microbiome. Conclusion Nevertheless, antagonist activities of probiotics are H. pylori strain-specific. In general, these bacteria can be used for therapeutic purposes such as adjuvant therapy, drug-delivery system, as well as enhancing immune system against H. pylori infection.
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Affiliation(s)
- Masoud Keikha
- Department of Microbiology and Virology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Karbalaei
- Department of Microbiology and Virology, School of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran.
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14
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Raderer M, Kiesewetter B. What you always wanted to know about gastric MALT-lymphoma: a focus on recent developments. Ther Adv Med Oncol 2021; 13:17588359211033825. [PMID: 34621332 PMCID: PMC8491302 DOI: 10.1177/17588359211033825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/02/2021] [Indexed: 12/17/2022] Open
Abstract
The stomach is the most common site of origin for extranodal lymphomas,
with extranodal marginal zone B-cell of the mucosa associated lymphoid
tissue (MALT-lymphoma) being the predominant subtype. MALT-lymphoma
develops in mucosa associated lymphoid structures acquired by
infection or chronic antigenic stimuli and may therefore arise in
almost any organ of the human body. In spite of histopathologic
similarities between various organs upon first glance, recent findings
suggest pronounced differences between different sites, with a variety
of features specific to gastric MALT-lymphoma. The objective of this
review is to sum up the current knowledge on pathogenesis, molecular
pathology, clinical presentation and therapeutic approaches to gastric
MALT-lymphoma with in-depth discussion of recent developments.
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Affiliation(s)
- Markus Raderer
- Division of Oncology, Internal Medicine I, Medical University of Vienna, Waehringer Guertel 18 - 20, Vienna, A 1090, Austria
| | - Barbara Kiesewetter
- Division of Oncology, Internal Medicine I, Medical University of Vienna, Vienna, Austria
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15
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Abstract
Helicobacter pylori is present in approximately one-half of the world's population. There are significant differences in prevalence based on region, age, race/ethnicity, and socioeconomic status. H pylori is the most common cause of infection-related cancers. Studies have demonstrated the relationship between H pylori infection and gastric adenocarcinoma and mucosa-associated lymphoid tissue lymphoma. H pylori has features and enzymatic properties allowing it to survive in the acidic stomach environment, and has specific virulence factors that promote an increased risk of gastric pathology. Eradication of H pylori is first-line therapy for mucosa-associated lymphoid tissue lymphoma and decreases the risk of gastric adenocarcinoma.
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16
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Choe AR, Shim KN, Park Y, Song EM, Tae CH, Jung SA. Cost-Effectiveness, Efficacy, and Safety Analysis of Tailored Therapy in Patients with Helicobacter pylori Infection. J Clin Med 2021; 10:jcm10122619. [PMID: 34198677 PMCID: PMC8232140 DOI: 10.3390/jcm10122619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/06/2021] [Accepted: 06/11/2021] [Indexed: 12/14/2022] Open
Abstract
Recently in Korea, where triple therapy is accepted as the first-line Helicobacter pylori (H. pylori) eradication treatment, antibiotic resistance to clarithromycin has increased considerably, resulting in eradication rates of less than 80%. We investigated the efficacy of tailored therapy after a clarithromycin resistance test compared with empirical therapy for H. pylori eradication. The cost-effectiveness of H. pylori eradication success was evaluated according to the average medical cost per patient. A total of 364 patients were enrolled in the study. The first-line H. pylori eradication rate was significantly higher in patients who received tailored therapy than in those who received empirical therapy. The total medical costs for the tailored and empirical groups were 46,374 Won and 53,528 Won. The total treatment period for each ultimately successful eradication in the tailored group was 79.8 ± 2.8 days, which is shorter than that of the empirical group (99.2 ± 7.4 days). The rate of eradication-related adverse events for the tailored group and empirical group was 12.9% and 14.8%, respectively. Tailored therapy could be a useful option to achieve a higher successful eradication rate, shorter treatment periods, and lower medical costs than empirical therapy in the era of increasing antibiotic resistance.
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Affiliation(s)
| | - Ki-Nam Shim
- Correspondence: ; Tel.: +82-2-6986-3122; Fax: +82-6986-3129
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17
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Kiesewetter B, Raderer M. How can we assess and measure prognosis for MALT lymphoma? A review of current findings and strategies. Expert Rev Hematol 2021; 14:391-399. [PMID: 33764848 DOI: 10.1080/17474086.2021.1909468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION : MALT (mucosa associated lymphoid tissue) lymphoma is a distinct type of B-cell lymphoma characterized by extranodal manifestation and an indolent clinical course with 10-year survival rates up to 90%. However, transformation to aggressive lymphoma may occur and treatment is indicated in case of symptomatic or progressive disease. AREAS COVERED : This review covers clinical and biological features potentially related to prognosis and outcome of MALT lymphoma patients, as well as available prognostic tools and risk stratification systems with a focus on the MALT-IPI (international prognostic index) and the POD24 (progression of disease at 24 months) cohort. In addition, we address the role of watch-and-wait, the importance of defining the optimal time point for treatment initiation and the relevance of depth of remission, which appear to be some of the central questions for physicians involved in the care of MALT lymphoma patients. A computerized database search using PubMed® was performed to identify available publications on prognostic factors and risk stratification tools in MALT lymphoma. EXPERT OPINION : Despite the development of disease-specific risk stratification systems, there is no clear concept how to measure prognosis and tailor treatment. Careful observation of the individual clinical course is essential to assess the optimal time point of treatment initiation and avoid overtreatment, particularly in patients with disseminated disease. In addition, early detection of patients with histological transformation is necessary, as these patients face a poor prognosis.
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Affiliation(s)
- Barbara Kiesewetter
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Vienna, Austria
| | - Markus Raderer
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Vienna, Austria
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18
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Yang CC, Chen TY, Tsui YK, Ko CC. Primary marginal zone B-cell lymphoma of the cavernous sinus: a case report and review of the literature. BMC Med Imaging 2021; 21:25. [PMID: 33579209 PMCID: PMC7881607 DOI: 10.1186/s12880-021-00556-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 01/28/2021] [Accepted: 02/01/2021] [Indexed: 12/25/2022] Open
Abstract
Background Primary lymphoma of the cavernous sinus is a rare form of extranodal non-Hodgkin lymphoma, of which very few cases have been reported in the published literature. This report presents the MRI findings with apparent diffusion coefficient (ADC) value in an exceedingly rare primary marginal zone B-cell lymphoma (MZBCL) of the cavernous sinus. Case presentation The case in this study is a 59-year-old immunocompetent male patient with a 2-month history of right ptosis and blurred vision. Right third cranial nerve palsy and binocular diplopia were observed upon neurological examination. Preoperative brain CT showed an extra-axial enhancing mass lesion in the right cavernous sinus. On MRI, ipsilateral internal carotid arterial encasement was noted without causing stenosis of the vessel. Isointense signal on T1-weighted and T2-weighted images, homogeneous contrast enhancement, and diffusion restriction were also observed. The mean ADC value of the tumor is 0.64 × 10–3 mm2/s (b value = 1000 s/mm2). Subtotal resection of the tumor was performed, and improvement of clinical symptoms were observed. The pathologic diagnosis of MZBCL was established by immunohistochemical examinations. Conclusions Primary MZBCL of the cavernous sinus is exceedingly rare, and preoperative confirmation poses a major challenge with CT and conventional MRI only. In this case, preoperative quantitative ADC value is shown to offer valuable additional information in the diagnostic process.
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Affiliation(s)
- Cheng-Chun Yang
- Department of Medical Imaging, Chi Mei Medical Center, No. 901, Zhonghua Rd., Yongkang Dist., Tainan City, 710, Taiwan, ROC
| | - Tai-Yuan Chen
- Department of Medical Imaging, Chi Mei Medical Center, No. 901, Zhonghua Rd., Yongkang Dist., Tainan City, 710, Taiwan, ROC.,Graduate Institute of Medical Sciences, Chang Jung Christian University, Tainan, Taiwan
| | - Yu-Kun Tsui
- Department of Medical Imaging, Chi Mei Medical Center, No. 901, Zhonghua Rd., Yongkang Dist., Tainan City, 710, Taiwan, ROC
| | - Ching-Chung Ko
- Department of Medical Imaging, Chi Mei Medical Center, No. 901, Zhonghua Rd., Yongkang Dist., Tainan City, 710, Taiwan, ROC. .,Department of Health and Nutrition, Chia Nan University of Pharmacy and Science, Tainan, Taiwan.
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19
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Udayasuryan B, Nguyen TT, Slade DJ, Verbridge SS. Harnessing Tissue Engineering Tools to Interrogate Host-Microbiota Crosstalk in Cancer. iScience 2020; 23:101878. [PMID: 33344921 PMCID: PMC7736992 DOI: 10.1016/j.isci.2020.101878] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Recent studies have begun to highlight the diverse and tumor-specific microbiomes across multiple cancer types. We believe this work raises the important question of whether the classical "Hallmarks of Cancer" should be expanded to include tumor microbiomes. To answer this question, the causal relationships and co-evolution of these microbiotic tumor ecosystems must be better understood. Because host-microbe interactions should be studied in a physiologically relevant context, animal models have been preferred. Yet these models are often poor mimics of human tumors and are difficult to interrogate at high spatiotemporal resolution. We believe that in vitro tissue engineered platforms could provide a powerful alternative approach that combines the high-resolution of in vitro studies with a high degree of physiological relevance. This review will focus on tissue engineered approaches to study host-microbe interactions and to establish their role as an emerging hallmark of cancer with potential as a therapeutic target.
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Affiliation(s)
- Barath Udayasuryan
- Virginia Tech – Wake Forest School of Biomedical Engineering and Sciences, Blacksburg, VA 24061, USA
| | - Tam T.D. Nguyen
- Department of Biochemistry, Virginia Polytechnic and State University, Blacksburg, VA 24061, USA
| | - Daniel J. Slade
- Department of Biochemistry, Virginia Polytechnic and State University, Blacksburg, VA 24061, USA
| | - Scott S. Verbridge
- Virginia Tech – Wake Forest School of Biomedical Engineering and Sciences, Blacksburg, VA 24061, USA
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20
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Tehlan A, Karmakar BC, Paul S, Kumar R, Kaur I, Ghosh A, Mukhopadhyay AK, Dhar SK. Antibacterial action of acriflavine hydrochloride for eradication of the gastric pathogen Helicobacter pylori. FEMS Microbiol Lett 2020; 367:5942657. [PMID: 33118020 DOI: 10.1093/femsle/fnaa178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/24/2020] [Indexed: 12/18/2022] Open
Abstract
Helicobacter pylori, a type 1 carcinogen, accounts for numerous gastric cancer-related deaths worldwide. Repurposing existing drugs or developing new ones for a combinatorial approach against increasing antimicrobial resistance is the need of the hour. This study highlights the efficacy of acriflavine hydrochloride (ACF-HCl) in inhibiting the growth of H. pylori reference strain and antibiotic-resistant clinical isolates at low concentrations. ACF-HCl inhibits H. pylori growth at MIC value 10 times less than that in Escherichia coli, another Gram-negative bacteria. Furthermore, ACF-HCl demonstrates synergistic effect with clarithromycin, a commonly used antibiotic against H. pylori. ACF-HCl treatment also eradicates H. pylori infection in the mice model efficiently. Our in vitro data indicate that bacterial membrane is the prime target. The novel action of ACF-HCl against antibiotic-resistant clinical isolates, synergistic effect with the conventional antibiotic clarithromycin and eradication of H. pylori from infected mice highlight the potential of ACF-HCl as a promising therapeutic agent against H. pylori by itself as well as for combinatorial therapy.
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Affiliation(s)
- Ankita Tehlan
- Special Centre for Molecular Medicine, Jawaharlal Nehru University (JNU), New Delhi 110067, India
| | - Bipul Chandra Karmakar
- Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases, P-33 CIT Road, Scheme XM, Beliaghata, Kolkata 700010, India
| | - Sangita Paul
- Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases, P-33 CIT Road, Scheme XM, Beliaghata, Kolkata 700010, India
| | - Raghwan Kumar
- Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases, P-33 CIT Road, Scheme XM, Beliaghata, Kolkata 700010, India
| | - Inderjeet Kaur
- International Centre for Genetic Engineering and Biotechnology, New Delhi 110067, India.,Department of Biotechnology, Central University of Haryana, Mahendergarh, Haryana 123031, India
| | - Amit Ghosh
- Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases, P-33 CIT Road, Scheme XM, Beliaghata, Kolkata 700010, India
| | - Asish K Mukhopadhyay
- Division of Bacteriology, ICMR-National Institute of Cholera and Enteric Diseases, P-33 CIT Road, Scheme XM, Beliaghata, Kolkata 700010, India
| | - Suman Kumar Dhar
- Special Centre for Molecular Medicine, Jawaharlal Nehru University (JNU), New Delhi 110067, India
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21
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Lee CL, Lee IS, Jung SG. A case of nodal marginal zone B-cell lymphoma of the lower eyelid. Arch Craniofac Surg 2020; 21:249-252. [PMID: 32867415 PMCID: PMC7463130 DOI: 10.7181/acfs.2020.00241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/18/2020] [Indexed: 11/24/2022] Open
Abstract
A marginal zone B-cell lymphoma is a type of B-cell lymphoma which is normally located at the margins of the secondary lymph node follicles. According to 2008 World Health Organization (WHO) classification, there are three main types classified according to the location of invasion: nodal lymphoma in the lymph nodes, splenic lymphoma in the spleen, and extranodal lymphoma in other locations. Recently, we have experienced a rare case of primary nodal marginal zone lymphoma that arose in the lower eyelid. Therefore, we report this case with a review of literature.
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Affiliation(s)
- Cho Long Lee
- Department of Plastic and Reconstructive Surgery, Eulji University College of Medicine, Daejeon, Korea
| | - Il Seok Lee
- Department of Plastic and Reconstructive Surgery, Eulji University College of Medicine, Daejeon, Korea
| | - Sung Gyun Jung
- Department of Plastic and Reconstructive Surgery, Eulji University College of Medicine, Daejeon, Korea
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22
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Villaume MT, Patel D, Lopez C, Patel V, Diggs P, Harmsen H, Thompson MA, Morgan D. Dural Marginal Zone Lymphoma in a Patient With a Hepatitis C Virus Infection. World J Oncol 2020; 11:122-125. [PMID: 32494320 PMCID: PMC7239576 DOI: 10.14740/wjon1285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 04/21/2020] [Indexed: 12/01/2022] Open
Abstract
Primary dural marginal zone lymphomas (MZLs) are exceptionally rare, with fewer than 100 cases reported to date. While the association between hepatitis C virus (HCV) infection and lymphoma is well established, it is unclear if this association extends to all anatomic sites. Here we report a case of dural MZL in a 61-year-old woman with an HCV infection. To our knowledge, this is the first report of a dural MZL associated with an HCV infection in an immunocompetent patient and was successfully treated with radiotherapy and rituximab. As such, future cases of primary MZL found in the dura should prompt consideration of co-infection with microbials such as HCV and upfront treatment with anti-virals should be considered.
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Affiliation(s)
- Matthew T Villaume
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Dilan Patel
- Department of Hematology and Bone Marrow Transplant, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Christine Lopez
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Vivek Patel
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Pauleatha Diggs
- Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Hannah Harmsen
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Mary Ann Thompson
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - David Morgan
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Hematology and Bone Marrow Transplant, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN, USA
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23
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Hamidi S, Badmasti F, Sadeghpour Heravi F, Safapoor MH, Mohammad Ali Tabrizi A, Ghorbani M, Azizi O. Antibiotic resistance and clonal relatedness of Helicobacter pylori strains isolated from stomach biopsy specimens in northeast of Iran. Helicobacter 2020; 25:e12684. [PMID: 32074664 DOI: 10.1111/hel.12684] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/25/2019] [Accepted: 02/04/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Resistant Helicobacter pylori to commonly used antimicrobial agents are associated with severe upper gastrointestinal disorders. To provide an epidemiological picture of H pylori and characterize the resistance pattern and genetic variation of clinical isolates, stomach biopsies from patients with functional dyspepsia were evaluated in northeast of Iran. MATERIALS AND METHODS In this study, 80 patients were recruited. Finally, fifty H pylori strains were isolated from antrum and corpus biopsies by culturing on Columbia agar. All strains were identified by standard laboratory procedures. Susceptibility testing of antibiotics was performed using minimum inhibitory concentration test. Allele-specific primer (ASP)-PCR of 23S rRNA which associated with clarithromycin resistance was done among resistant strains. Moreover, cagA gene and polymorphism in vacA were detected. Random amplified polymorphic DNA polymerase chain reaction (RAPD-PCR) was applied to investigate the genetic variations among all strains. RESULTS Antibiotic resistance pattern of H pylori strains was as follows: 68% (34/50) to metronidazole, 50% (25/50) to rifampicin, 30% (15/50) to amoxicillin, 28% (14/50) to levofloxacin, 22% (11/50) to clarithromycin, and 16% (8/50) to tetracycline. Multidrug-resistant strains were observed in 19 strains (38%). ASP-PCR of 23S rRNA showed four strains had A2143G mutation, six strains had A2142G mutation, and one strain had a Wt+A2143G mutation. Amplification of virulence-associated genes revealed that cagA was present in 27 isolates (54%) and vacA in 36 isolates (72%). The most common genotype of H pylori was vacA s1am2 (40%) followed by vacA s2m2 (14%), vacA s1am1 (12%), vacA s1bm1 (4%), and vacA s1bm2 (2%). DNA fingerprinting pattern indicated a high heterogeneity among isolated strains. CONCLUSION An alarming level of resistance to metronidazole and rifampicin and high heterogeneity among H pylori isolates highlighted the importance of continued monitoring of antimicrobial susceptibility and epidemiological surveillance of this pathogen.
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Affiliation(s)
- Sara Hamidi
- Department of Laboratory Sciences, School of Paramedical Sciences, Torbat Heydariyeh University of Medical sciences, Torbat Heydariyeh, Iran
| | - Farzad Badmasti
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | - Fatemah Sadeghpour Heravi
- Surgical Infection Research Group, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, Australia
| | - Mohammed Hossein Safapoor
- Department of Internal Medicine, 9 Dey Educational Hospital, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | - Amir Mohammad Ali Tabrizi
- Department of Laboratory Sciences, School of Paramedical Sciences, Torbat Heydariyeh University of Medical sciences, Torbat Heydariyeh, Iran
| | - Mohammad Ghorbani
- Department of Public Health, School of Health, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | - Omid Azizi
- Department of Laboratory Sciences, School of Paramedical Sciences, Torbat Heydariyeh University of Medical sciences, Torbat Heydariyeh, Iran.,Health Sciences Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
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Heterogeneity of clinical management of low-grade gastric lymphoma of mucosa-associated lymphoid tissue. An audit of 198 patients in Spain. GASTROENTEROLOGIA Y HEPATOLOGIA 2019; 43:79-86. [PMID: 31787375 DOI: 10.1016/j.gastrohep.2019.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 08/14/2019] [Accepted: 08/29/2019] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Cure of Helicobacter pylori infection in patients with gastric lymphoma of mucosa-associated lymphoid tissue (MALT) leads to long-term clinical remission in the initial stages. As it is a rare disease, its management in clinical practice remains largely unknown and heterogeneity of care remains a concern. The aim was to audit the management and evolution of a large series of low-grade gastric MALT lymphomas from thirteen Spanish hospitals. MATERIALS AND METHODS Multicentre retrospective study including data on the diagnosis and follow-up of patients with gastric low-grade MALT lymphoma from January 1998 to December 2013. Clinical, biological and pathological data were analyzed and survival curves were drawn. RESULTS One-hundred and ninety-eight patients were included. Helicobacter pylori was present in 132 (69%) patients and 103 (82%) in tumors confined to the stomach (stage EI) and was eradicated in 92% of patients. Chemotherapy was given in 90 (45%) patients and 43 (33%) with stage EI. Marked heterogeneity in the use of diagnostic methods and chemotherapy was observed. Five-year overall survival was 86% (89% in EI). Survival was similar in EI patients receiving aggressive treatment and in those receiving only antibiotics (p=0.577). DISCUSSION Gastric MALT lymphoma has an excellent prognosis. We observed, however, a marked heterogeneity in the use of diagnostic methods or chemotherapy in early-stage patients.
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25
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Liu P, Lu Z, Liu L, Li R, Liang Z, Shen M, Xu H, Ren D, Ji M, Yuan S, Shang D, Zhang Y, Liu H, Tu Z. NOD-like receptor signaling in inflammation-associated cancers: From functions to targeted therapies. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 64:152925. [PMID: 31465982 DOI: 10.1016/j.phymed.2019.152925] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/06/2019] [Accepted: 04/08/2019] [Indexed: 05/22/2023]
Abstract
BACKGROUND Recently, many studies have reported that some botanicals and natural products were able to regulate NOD-like receptor signaling. NOD-like receptors (NLRs) have been established as crucial regulators in inflammation-associated tumorigenesis, angiogenesis, cancer cell stemness and chemoresistance. NLRs specifically sense pathogen-associated molecular patterns and respond by activating other signaling regulators, including Rip2 kinase, NF-κB, MAPK and ASC/caspase-1, leading to the secretion of various cytokines. PURPOSE The aim of this article is to review the molecular mechanisms of NOD-like receptor signaling in inflammation-associated cancers and the NLRs-targeted botanicals and synthetic small molecules in cancer intervention. RESULTS Aberrant activation of NLRs occurs in various cancers, orchestrating the tissue microenvironment and potentiating neoplastic risk. Blocking NLR inflammasome activation by botanicals or synthetic small molecules may be a valuable way to prevent cancer progression. Moreover, due to the roles of NLRs in regulating cytokine production, NLR signaling may be correlated with senescence-associated secretory phenotype. CONCLUSION In this review, we discuss how NLR signaling is involved in inflammation-associated cancers, and highlight the NLR-targeted botanicals and synthetic small molecules in cancer intervention.
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Affiliation(s)
- Peng Liu
- Institute of Life Sciences, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Ziwen Lu
- School of Pharmacy, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Lanlan Liu
- Institute of Life Sciences, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Ruyan Li
- Institute of Life Sciences, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Zhiquan Liang
- School of Pharmacy, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Mingxiang Shen
- Institute of Life Sciences, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Han Xu
- School of Pharmacy, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Dewan Ren
- School of Pharmacy, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Mengchen Ji
- Institute of Life Sciences, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Sirui Yuan
- School of Pharmacy, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Dongsheng Shang
- School of Pharmacy, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Yibang Zhang
- School of Pharmacy, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China
| | - Hanqing Liu
- School of Pharmacy, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China.
| | - Zhigang Tu
- Institute of Life Sciences, Jiangsu University, 301 Xuefu Road, Jingkou District, Zhenjiang, Jiangsu 212013, China.
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Successful Endoscopic Resection of Mucosa-Associated Lymphoid Tissue Lymphoma of the Colon. ACG Case Rep J 2019; 6:e00228. [PMID: 31832456 PMCID: PMC6855546 DOI: 10.14309/crj.0000000000000228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 08/28/2019] [Indexed: 12/17/2022] Open
Abstract
Mucosa-associated lymphoid tissue lymphomas are the most common form of primary malignant gastrointestinal lymphoma. Although typically found in the stomach, extragastric locations have been described, in rare cases, the colon. The optimal management of these neoplasms remains uncertain and limited largely to small retrospective series or case reports. We report a patient with a colonic mucosa-associated lymphoid tissue lymphoma identified during a routine screening colonoscopy which was removed endoscopically without any adjuvant antimicrobial therapy, chemotherapy, or radiation therapy. She remained disease-free after the 1-year follow-up, providing support to potential endoscopic therapy in appropriately selected patients.
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Augustin AD, Savio A, Nevel A, Ellis RJ, Weller C, Taylor D, Tucker RM, Ibrahim MAA, Bjarnason I, Dobbs SM, Dobbs RJ, Charlett A. Helicobacter suis Is Associated With Mortality in Parkinson's Disease. Front Med (Lausanne) 2019; 6:188. [PMID: 31555648 PMCID: PMC6724659 DOI: 10.3389/fmed.2019.00188] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 08/05/2019] [Indexed: 01/13/2023] Open
Abstract
Helicobacter pylori has been implicated in the pathogenesis of Parkinson's disease (PD). Its eradication, in a randomized placebo-controlled trial, improved PD hypokinesia. Helicobacter species zoonosis might explain excess mortality from PD and non-Hodgkin lymphoma in livestock, but not arable, farmers. Indeed, Helicobacter is causally-associated with gastric lymphoma. We have previously shown that the relative-frequency, H. suis to H. pylori, was 10-times greater in 60 PD-patients than in 256 controls. We now go on to evaluate the pathological significance of H. suis, detected in gastric-biopsy DNA-extracts by ureA-based species-specific qPCR, validated by amplicon sequencing. The methodology had been cross-validated by a carR-based PCR. The pathological significance is put in context of H. pylori detection [urea-breath-test (UBT) with biopsy-culture, and, if negative, PCR], and the potential reservoir in pigs. Here, we explore, in these 60 PD-patients, associations of H. suis status with all-cause-mortality, and with orthostatic cardiovascular and blood profiling. H. suis had been detected in 19 of the 60 PD-patients on one or more occasion, only two (with co-existent H. pylori) being UBT positive. We found that the hazard-of-death (age-at-diagnosis- and gender-adjusted) was 12 (95% CI 1,103) times greater (likelihood-ratio test, P = 0.005) with H. suis-positivity (6/19) than with negativity (2/40: one lost to follow-up). UBT-values did not influence the hazard. H. suis-positivity was associated with lower standing mean-arterial-pressure [6 (1, 11) mmHg], H. pylori-positivity having no effect. The lower total lymphocyte count with H. pylori-positivity [-8 (-1, -14) %] was not seen with H. suis, where T-cell counts were higher [24 (2, 52) %]. Regarding the potential zoonotic reservoir in the UK, Helicobacter-like-organism frequency was determined in freshly-slaughtered pigs, nature ascertained by sequencing. Organisms immunostaining for Helicobacter, with corkscrew morphology typical of non-H. pylori Helicobacter, were seen in 47% of 111 pig-antra. We conclude that H. suis is associated with all-cause-mortality in PD and has a potential zoonotic reservoir.
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Affiliation(s)
- Aisha D. Augustin
- Pharmaceutical Sciences, King's College London, London, United Kingdom
- The Maudsley Hospital, London, United Kingdom
| | - Antonella Savio
- Pharmaceutical Sciences, King's College London, London, United Kingdom
- Histopathology, Royal Marsden Hospital, London, United Kingdom
| | - Amanda Nevel
- Royal Veterinary College, London, United Kingdom
| | | | - Clive Weller
- Pharmaceutical Sciences, King's College London, London, United Kingdom
| | - David Taylor
- Pharmaceutical Sciences, King's College London, London, United Kingdom
- The Maudsley Hospital, London, United Kingdom
| | - Rosalind M. Tucker
- Pharmaceutical Sciences, King's College London, London, United Kingdom
- The Maudsley Hospital, London, United Kingdom
| | | | - Ingvar Bjarnason
- Gastroenterology, King's College Hospital, London, United Kingdom
| | - Sylvia M. Dobbs
- Pharmaceutical Sciences, King's College London, London, United Kingdom
- The Maudsley Hospital, London, United Kingdom
- Gastroenterology, King's College Hospital, London, United Kingdom
| | - R. John Dobbs
- Pharmaceutical Sciences, King's College London, London, United Kingdom
- The Maudsley Hospital, London, United Kingdom
- Gastroenterology, King's College Hospital, London, United Kingdom
| | - André Charlett
- Pharmaceutical Sciences, King's College London, London, United Kingdom
- Statistics, Modelling and Economics, Centre for Infectious Disease Surveillance and Control, Public Health England, London, United Kingdom
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Kiesewetter B, Lamm W, Neuper O, Mayerhoefer ME, Simonitsch-Klupp I, Raderer M. Prolonged follow-up on lenalidomide-based treatment for mucosa-associated lymphoid tissue lymphoma (MALT lymphoma)-Real-world data from the Medical University of Vienna. Hematol Oncol 2019; 37:345-351. [PMID: 31283840 PMCID: PMC6899635 DOI: 10.1002/hon.2647] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 07/03/2019] [Accepted: 07/04/2019] [Indexed: 01/03/2023]
Abstract
Based on results of two pilot trials, lenalidomide (LEN) was found to be active and safe as monotherapy and showed an increased response rate of 80% in combination with rituximab (R) for patients with mucosa‐associated lymphoid tissue (MALT) lymphoma. While initial results were promising, there are currently no data on long‐term outcome, and larger international phase II/III trials on LEN for indolent lymphoma lack specific subgroup analyses. Thus, we have systematically analyzed 50 patients treated with LEN‐based therapy (LEN‐monotherapy n = 16, R‐LEN n = 34) at the Medical University of Vienna 2009 to 2019 and investigated long‐term outcome and relapse patterns. At a follow‐up of more than 5 years (median 68 months), 54% of patients are free of relapse, and estimated median progression‐free survival (PFS) was 72 months (95%CI 49‐96). There was no difference in PFS according to stage of disease, i.e. localized versus disseminated disease (P = .67) and previous systemic treatment (P = .16). Interestingly, but with the caveat of the limited number of patients included in this series, primary extragastric disease had a superior PFS compared with gastric lymphoma (P = .04) and also depth of response, i.e. complete or partial response versus stable disease was associated with significantly prolonged PFS (P = .01). We documented four patients (8%) with pronounced improvement of response during follow‐up including three patients initially rated as partial remission and finally achieving complete remission at 12 to 32 months. This highlights the potential of delayed responses to LEN treatment. Estimated overall survival at 5 years was excellent at 92%. These “real‐world” data confirm long‐term activity of LEN in MALT lymphoma.
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Affiliation(s)
- Barbara Kiesewetter
- Department of Medicine I, Clinical Division of Oncology, Medical University of Vienna, Vienna, Austria
| | - Wolfgang Lamm
- Department of Medicine I, Clinical Division of Oncology, Medical University of Vienna, Vienna, Austria
| | - Ortrun Neuper
- Department of Medicine I, Clinical Division of Oncology, Medical University of Vienna, Vienna, Austria
| | - Marius E Mayerhoefer
- Department of Biomedical Imaging and Image-guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, Austria
| | | | - Markus Raderer
- Department of Medicine I, Clinical Division of Oncology, Medical University of Vienna, Vienna, Austria
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Novel Insights of Lymphomagenesis of Helicobacter pylori-Dependent Gastric Mucosa-Associated Lymphoid Tissue Lymphoma. Cancers (Basel) 2019; 11:cancers11040547. [PMID: 30999581 PMCID: PMC6520890 DOI: 10.3390/cancers11040547] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 04/09/2019] [Accepted: 04/12/2019] [Indexed: 02/06/2023] Open
Abstract
Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is the most common subtype of gastric lymphoma. Most gastric MALT lymphomas are characterized by their association with the Helicobacter pylori (HP) infection and are cured by first-line HP eradication therapy (HPE). Several studies have been conducted to investigate why most gastric MALT lymphomas remain localized, are dependent on HP infection, and show HP-specific intratumoral T-cells (e.g., CD40-mediated signaling, T-helper-2 (Th2)-type cytokines, chemokines, costimulatory molecules, and FOXP3+ regulatory T-cells) and their communication with B-cells. Furthermore, the reason why the antigen stimuli of these intratumoral T-cells with tonic B-cell receptor signaling promote lymphomagenesis of gastric MALT lymphoma has also been investigated. In addition to the aforementioned mechanisms, it has been demonstrated that the translocated HP cytotoxin-associated gene A (CagA) can promote B-cell proliferation through the activation of Src homology-2 domain-containing phosphatase (SHP-2) phosphorylation-dependent signaling, extracellular-signal-regulated kinase (ERK), p38 mitogen-activated protein kinase (MAPK), B-cell lymphoma (Bcl)-2, and Bcl-xL. Furthermore, the expression of CagA and these CagA-signaling molecules is closely associated with the HP-dependence of gastric MALT lymphomas (completely respond to first-line HPE). In this article, we summarize evidence of the classical theory of HP-reactive T-cells and the new paradigm of direct interaction between HP and B-cells that contributes to the HP-dependent lymphomagenesis of gastric MALT lymphomas. Although the role of first-line HPE in the treatment of HP-negative gastric MALT lymphoma remains uncertain, several case series suggest that a proportion of HP-negative gastric MALT lymphomas remains antibiotic-responsive and is cured by HPE. Considering the complicated interaction between microbiomes and the genome/epigenome, further studies on the precise mechanisms of HP- and other bacteria-directed lymphomagenesis in antibiotic-responsive gastric MALT lymphomas are warranted.
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Salar A. Gastric MALT lymphoma and Helicobacter pylori. Med Clin (Barc) 2018; 152:65-71. [PMID: 30424932 DOI: 10.1016/j.medcli.2018.09.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 09/10/2018] [Accepted: 09/12/2018] [Indexed: 02/07/2023]
Abstract
Marginal zone lymphomas of the MALT type are a type of B-cell neoplasms that involve extranodal tissues and have an indolent clinical behaviour. The stomach is the most common site and most patients are infected by Helicobacter pylori. An increase in the resistance of this bacterium to several antibiotics has been observed in the last years and this fact has determined the review of treatment guidelines. In areas with resistance to clarithromycin greater than 15%, classical triple therapy should be abandoned and quadruple regimens with or without bismuth are currently recommended. Thus, these new guidelines for eradication treatment should be applied to patients with gastric MALT lymphoma associated with H. pylori infection.
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Affiliation(s)
- Antonio Salar
- Servicio de Hematología, Hospital del Mar, Barcelona, España; Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, España.
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Paulin MV, Couronné L, Beguin J, Le Poder S, Delverdier M, Semin MO, Bruneau J, Cerf-Bensussan N, Malamut G, Cellier C, Benchekroun G, Tiret L, German AJ, Hermine O, Freiche V. Feline low-grade alimentary lymphoma: an emerging entity and a potential animal model for human disease. BMC Vet Res 2018; 14:306. [PMID: 30305106 PMCID: PMC6180644 DOI: 10.1186/s12917-018-1635-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 09/28/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Low-grade alimentary lymphoma (LGAL) is characterised by the infiltration of neoplastic T-lymphocytes, typically in the small intestine. The incidence of LGAL has increased over the last ten years and it is now the most frequent digestive neoplasia in cats and comprises 60 to 75% of gastrointestinal lymphoma cases. Given that LGAL shares common clinical, paraclinical and ultrasonographic features with inflammatory bowel diseases, establishing a diagnosis is challenging. A review was designed to summarise current knowledge of the pathogenesis, diagnosis, prognosis and treatment of feline LGAL. Electronic searches of PubMed and Science Direct were carried out without date or language restrictions. RESULTS A total of 176 peer-reviewed documents were identified and most of which were published in the last twenty years. 130 studies were found from the veterinary literature and 46 from the human medicine literature. Heterogeneity of study designs and outcome measures made meta-analysis inappropriate. The pathophysiology of feline LGAL still needs to be elucidated, not least the putative roles of infectious agents, environmental factors as well as genetic events. The most common therapeutic strategy is combination treatment with prednisolone and chlorambucil, and prolonged remission can often be achieved. Developments in immunohistochemical analysis and clonality testing have improved the confidence of clinicians in obtaining a correct diagnosis between LGAL and IBD. The condition shares similarities with some diseases in humans, especially human indolent T-cell lymphoproliferative disorder of the gastrointestinal tract. CONCLUSIONS The pathophysiology of feline LGAL still needs to be elucidated and prospective studies as well as standardisation of therapeutic strategies are needed. A combination of conventional histopathology and immunohistochemistry remains the current gold-standard test, but clinicians should be cautious about reclassifying cats previously diagnosed with IBD to lymphoma on the basis of clonality testing. Importantly, feline LGAL could be considered to be a potential animal model for indolent digestive T-cell lymphoproliferative disorder, a rare condition in human medicine.
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Affiliation(s)
- Mathieu V Paulin
- Université Paris-Est, École Nationale Vétérinaire d'Alfort, 7 Avenue du Général de Gaulle, 94700, Maisons-Alfort, France
| | - Lucile Couronné
- Hematology Department, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris (APHP), Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,INSERM UMR 1163, CNRS ERL 8254, Institut Imagine, Paris, France
| | - Jérémy Beguin
- Internal Medicine Department, Université Paris-Est, École Nationale Vétérinaire d'Alfort, 7 Avenue du Général de Gaulle, 94700, Maisons-Alfort, France
| | - Sophie Le Poder
- UMR 1161 Virologie, INRA-ENVA-ANSES, Université Paris-Est, École Nationale Vétérinaire d'Alfort, Maisons-Alfort, France
| | - Maxence Delverdier
- Anatomical Pathology Department, Université de Toulouse, École Nationale Vétérinaire de Toulouse, 23 Chemin des Capelles, 31076, Toulouse Cedex, France
| | - Marie-Odile Semin
- Anatomical Pathology Department, Université de Toulouse, École Nationale Vétérinaire de Toulouse, 23 Chemin des Capelles, 31076, Toulouse Cedex, France
| | - Julie Bruneau
- Pathology Department, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris (APHP), Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,INSERM 1163, Institut Imagine, Site Hôpital Universitaire Necker - Enfants Malades, Paris, France
| | - Nadine Cerf-Bensussan
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,UMR 1163, Laboratory of Intestinal Immunity, INSERM, Paris, France
| | - Georgia Malamut
- Gastroenterology Department, Hôpital Européen Georges Pompidou, Assistance Publique - Hôpitaux de Paris (APHP), Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,INSERM UMR 1163, Institut Imagine, Paris, France
| | - Christophe Cellier
- Gastroenterology Department, Hôpital Européen Georges Pompidou, Assistance Publique - Hôpitaux de Paris (APHP), Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,INSERM UMR 1163, Institut Imagine, Paris, France
| | - Ghita Benchekroun
- Internal Medicine Department, Université Paris-Est, École Nationale Vétérinaire d'Alfort, 7 Avenue du Général de Gaulle, 94700, Maisons-Alfort, France
| | - Laurent Tiret
- Inserm U955-E10 BNMS, IMRB, Université Paris-Est, École Nationale Vétérinaire d'Alfort, 94000, Maisons-Alfort, France
| | - Alexander J German
- Institute of Ageing and Chronic Disease, University of Liverpool, Leahurst Campus, Chester High Road, Neston, CH64 7TE, UK
| | - Olivier Hermine
- Hematology Department, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris (APHP), Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,INSERM UMR 1163, CNRS ERL 8254, Institut Imagine, Paris, France
| | - Valérie Freiche
- Internal Medicine Department, Université Paris-Est, École Nationale Vétérinaire d'Alfort, 7 Avenue du Général de Gaulle, 94700, Maisons-Alfort, France.
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Craver BM, El Alaoui K, Scherber RM, Fleischman AG. The Critical Role of Inflammation in the Pathogenesis and Progression of Myeloid Malignancies. Cancers (Basel) 2018; 10:cancers10040104. [PMID: 29614027 PMCID: PMC5923359 DOI: 10.3390/cancers10040104] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 03/23/2018] [Accepted: 04/02/2018] [Indexed: 12/15/2022] Open
Abstract
Hematopoietic stem cells (HSCs) maintain an organism's immune system for a lifetime, and derangements in HSC proliferation and differentiation result in hematologic malignancies. Chronic inflammation plays a contributory if not causal role in HSC dysfunction. Inflammation induces HSC exhaustion, which promotes the emergence of mutant clones that may be resistant to an inflammatory microenvironment; this likely promotes the onset of a myeloid hematologic malignancy. Inflammatory cytokines are characteristically high in patients with myeloid malignancies and are linked to disease initiation, symptom burden, disease progression, and worsened prognostic survival. This review will cover our current understanding of the role of inflammation in the initiation, progression, and complications of myeloid hematologic malignancies, drawing from clinical studies as well as murine models. We will also highlight inflammation as a therapeutic target in hematologic malignancies.
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Affiliation(s)
- Brianna M Craver
- Department of Biological Chemistry, University of California Irvine, Irvine, CA 92697, USA.
| | - Kenza El Alaoui
- Department of Internal Medicine, Université Libre de Bruxelles, 1050 Brussels, Belgium.
- Department of Medicine, University of California Irvine, Irvine, CA 92697, USA.
| | - Robyn M Scherber
- Department of Hematology and Oncology, Mays MD Anderson Cancer Center, University of Texas San Antonio, San Antonio, TX 78249, USA.
| | - Angela G Fleischman
- Department of Biological Chemistry, University of California Irvine, Irvine, CA 92697, USA.
- Department of Medicine, University of California Irvine, Irvine, CA 92697, USA.
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Vasimalai N, Vilas-Boas V, Gallo J, Cerqueira MDF, Menéndez-Miranda M, Costa-Fernández JM, Diéguez L, Espiña B, Fernández-Argüelles MT. Green synthesis of fluorescent carbon dots from spices for in vitro imaging and tumour cell growth inhibition. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:530-544. [PMID: 29527430 PMCID: PMC5827765 DOI: 10.3762/bjnano.9.51] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 01/15/2018] [Indexed: 05/20/2023]
Abstract
Carbon dots have demonstrated great potential as luminescent nanoparticles in bioapplications. Although such nanoparticles appear to exhibit low toxicity compared to other metal luminescent nanomaterials, today we know that the toxicity of carbon dots (C-dots) strongly depends on the protocol of fabrication. In this work, aqueous fluorescent C-dots have been synthesized from cinnamon, red chilli, turmeric and black pepper, by a one-pot green hydrothermal method. The synthesized C-dots were firstly characterized by means of UV-vis, fluorescence, Fourier transform infrared and Raman spectroscopy, dynamic light scattering and transmission electron microscopy. The optical performance showed an outstanding ability for imaging purposes, with quantum yields up to 43.6%. Thus, the cytotoxicity of the above mentioned spice-derived C-dots was evaluated in vitro in human glioblastoma cells (LN-229 cancer cell line) and in human kidney cells (HK-2 non-cancerous cell line). Bioimaging and viability studies were performed with different C-dot concentrations from 0.1 to 2 mg·mL-1, exhibiting a higher uptake of C-dots in the cancer cultures compared to the non-cancerous cells. Results showed that the spice-derived C-dots inhibited cell viability dose-dependently after a 24 h incubation period, displaying a higher toxicity in LN-229, than in HK-2 cells. As a control, C-dots synthesized from citric acid did not show any significant toxicity in either cancerous or non-cancerous cells, implying that the tumour cell growth inhibition properties observed in the spice-derived C-dots can be attributed to the starting material employed for their fabrication. These results evidence that functional groups in the surface of the C-dots might be responsible for the selective cytotoxicity, as suggested by the presence of piperine in the surface of black pepper C-dots analysed by ESI-QTOF-MS.
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Affiliation(s)
- Nagamalai Vasimalai
- Life Sciences Department, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga, 4715-330 Braga, Portugal
| | - Vânia Vilas-Boas
- Life Sciences Department, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga, 4715-330 Braga, Portugal
- UCIBIO-REQUIMTE, Laboratory of Toxicology, Biological Sciences Department, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050–313 Porto, Portugal
| | - Juan Gallo
- Life Sciences Department, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga, 4715-330 Braga, Portugal
| | | | - Mario Menéndez-Miranda
- Department of Physical and Analytical Chemistry, University of Oviedo Julian Clavería 8, 33006 Oviedo, Spain
| | - José Manuel Costa-Fernández
- Department of Physical and Analytical Chemistry, University of Oviedo Julian Clavería 8, 33006 Oviedo, Spain
| | - Lorena Diéguez
- Life Sciences Department, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga, 4715-330 Braga, Portugal
| | - Begoña Espiña
- Life Sciences Department, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga, 4715-330 Braga, Portugal
| | - María Teresa Fernández-Argüelles
- Life Sciences Department, International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga, 4715-330 Braga, Portugal
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Functional Cytotoxin Associated Gene A in Helicobacter pylori Strains and Its Association with Integrity of Cag-pathogenicity Island and Histopathological Changes of Gastric Tissue. ARCHIVES OF CLINICAL INFECTIOUS DISEASES 2017. [DOI: 10.5812/archcid.62955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Expressions of the CagA protein and CagA-signaling molecules predict Helicobacter pylori dependence of early-stage gastric DLBCL. Blood 2017; 129:188-198. [DOI: 10.1182/blood-2016-04-713719] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 11/09/2016] [Indexed: 02/08/2023] Open
Abstract
Key Points
Expression of CagA and CagA-signaling molecules p-SHP2 and p-ERK is associated with HP dependence of gastric DLBCL. CagA is associated with the direct lymphomagenic effect of HP on B cells of HP-dependent gastric DLBCL.
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Hashinaga M, Suzuki R, Akada J, Matsumoto T, Kido Y, Okimoto T, Kodama M, Murakami K, Yamaoka Y. Differences in amino acid frequency in CagA and VacA sequences of Helicobacter pylori distinguish gastric cancer from gastric MALT lymphoma. Gut Pathog 2016; 8:54. [PMID: 27833662 PMCID: PMC5101760 DOI: 10.1186/s13099-016-0137-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 10/26/2016] [Indexed: 12/20/2022] Open
Abstract
Background Helicobacter pylori is a pathogenic bacterium that causes various gastrointestinal diseases. The most common gastric malignancies associated with H. pylori are gastric cancer and lymphoma of mucosa associated lymphoid tissue (MALT). Helicobacter pylori virulence genes, namely cagA and vacA, are known to be associated with malignancy development. Conventionally, cagA and vacA were classified by looking at partial sequences of the genes. However, such genotyping has hardly proven useful predicting different risks for gastric cancer or MALT lymphoma. In search of new loci that distinguish these diseases, we investigated the full sequences of cagA and vacA. Results We compared cagA and vacA sequences of 18 and 12 H. pylori strains obtained, respectively, from patients with gastric cancer and MALT lymphoma in Oita, Japan. Conventional genotyping of cagA and vacA showed no significant difference between the two diseases. We further investigated the full protein sequences of CagA and VacA to identify loci where allele frequency was significantly different between the diseases. We found four such loci on CagA, and three such loci on VacA. We also inspected the corresponding loci on the genes of 22 gastritis strains that potentially lead to gastric cancer or MALT lymphoma in the long run. Significant differences were observed at one CagA locus between gastritis and MALT lymphoma strains, and at one VacA locus between gastritis and gastric cancer strains. Conclusions We found novel candidate loci in H. pylori virulence genes in association with two different types of gastric malignancies that could not be differentiated by conventional genotyping. Biological connotations of the amino acid polymorphisms merit further study. Electronic supplementary material The online version of this article (doi:10.1186/s13099-016-0137-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Masahiko Hashinaga
- Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593 Japan ; Department of Gastroenterology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593 Japan
| | - Rumiko Suzuki
- Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593 Japan
| | - Junko Akada
- Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593 Japan
| | - Takashi Matsumoto
- Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593 Japan
| | - Yasutoshi Kido
- Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593 Japan
| | - Tadayoshi Okimoto
- Department of Gastroenterology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593 Japan
| | - Masaaki Kodama
- Department of Gastroenterology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593 Japan ; Faculty of Welfare and Health Science, Oita University, 700 Dannoharu, Oita, Oita 870-1192 Japan
| | - Kazunari Murakami
- Department of Gastroenterology, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593 Japan
| | - Yoshio Yamaoka
- Department of Environmental and Preventive Medicine, Faculty of Medicine, Oita University, 1-1 Idaigaoka, Hasama-machi, Yufu, Oita 879-5593 Japan ; Department of Medicine-Gastroenterology, Baylor College of Medicine and Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX USA
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Palmela C, Fonseca C, Faria R, Baptista RB, Ribeiro S, Ferreira AO. Increased risk for metachronous gastric adenocarcinoma following gastric MALT lymphoma-A US population-based study. United European Gastroenterol J 2016; 5:473-478. [PMID: 28588876 DOI: 10.1177/2050640616671643] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 09/05/2016] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Gastric mucosa-associated lymphoid tissue lymphoma (gMALT) and gastric adenocarcinoma (GC) are long-term complications of chronic Helicobacter pylori (HP) gastritis. Treatment of HP infection induces remission in most patients with gMALT. Endoscopic follow-up is not currently endorsed after complete remission. However, the risk of GC in these patients is unclear. OBJECTIVE The objective of this study is to estimate GC risk in gMALT patients. METHODS The National Cancer Institute Surveillance, Epidemiology and End Results 13 (SEER) database-Nov 2014 Sub (1992-2012) was used to identify adult patients diagnosed with gMALT between 1992 and 2012. The standardized incidence ratio of second primary GC after a latency period of 12 months was calculated and compared to a reference SEER cohort of identical age, sex and time period. The risk of GC in these patients was also stratified by latency period (five years) and age. RESULTS We identified 2195 cases of gMALT lymphoma, and 20 (0.91%) of them subsequently developed GC with a relative risk (RR) of 4.32 (95% CI 2.64-6.67) compared to the American population. The median latency time was five years and the risk was maintained afterward (RR 4.92, 95% CI 2.45-8.79). When stratified by age group the risk was highest for the 45-64 group (RR 14.04, 95% CI 5.64-28.93). CONCLUSION gMALT lymphoma is associated with an increased risk of metachronous gastric adenocarcinoma. The risk is still present after more than five years of follow-up. Further studies may clarify the most adequate follow-up strategy.
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Affiliation(s)
- Carolina Palmela
- Department of Gastroenterology, Hospital Beatriz Ângelo, Loures, Portugal
| | - Cristina Fonseca
- Department of Ophthalmology, Centro Hospitalar e Universitário de Coimbra, EPE, Coimbra, Portugal
| | - Rita Faria
- Department of Cardiology, Centro Hospitalar de Vila Nova de Gaia/Espinho, EPE, Vila Nova de Gaia, Portugal
| | - Rute Baeta Baptista
- Department of Pediatrics, Centro Hospitalar Lisboa Central, EPE, Lisboa, Portugal
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Factors Associated With Detection of Helicobacter pylori in Gastric Biopsies: A Case-Control Study of 396 Biopsies. Appl Immunohistochem Mol Morphol 2016; 26:345-350. [PMID: 27490761 DOI: 10.1097/pai.0000000000000421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM OF THE STUDY Helicobacter pylori (HP) infection is associated with significant gastric mucosal inflammation. We aimed to determine the clinicopathologic features associated with HP in gastric biopsy. METHODS AND RESULTS Three hundred ninety-six gastric biopsies were evaluated including 165 HP-positive cases and 231 randomly selected HP-negative controls. HP was detected using hematoxylin and eosin (H&E), Giemsa, and immunohistochemistry staining. The univariate and multivariate analyses were conducted to study the relationship of clinicopathologic characteristics and HP infection. Among the HP-positive cases, 131 cases were confirmed by H&E staining and 34 cases were confirmed by Giemsa or immunohistochemistry staining. Compared with chronic inactive gastritis, chronic active gastritis was more likely associated with having HP detected by H&E. Males were more likely to have HP gastritis than females (odds ratio: 1.72, P=0.01). The patients who had chronic active gastritis or chronic gastritis (moderate or severe) were more likely to have HP infection than patients with mild chronic gastritis (P<0.001). Conversely, patients who had intestinal metaplasia were less likely to have HP infection than patients without intestinal metaplasia (odds ratio: 0.22, P<0.001). However, concurrent atrophic gastritis was not related to HP infection (P=0.37). HP infection history was not associated with HP infection (P=0.74). CONCLUSIONS HP detection in gastric biopsies is associated with active inflammation, male sex, and the lack of intestinal metaplasia, but not atrophic gastritis or HP infection history. Routine ancillary staining may not be required for HP detection in all biopsy specimens. We do not recommend ancillary staining for mild chronic inactive gastritis.
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Doorakkers E, Lagergren J, Engstrand L, Brusselaers N. Eradication of Helicobacter pylori and Gastric Cancer: A Systematic Review and Meta-analysis of Cohort Studies. J Natl Cancer Inst 2016; 108:djw132. [PMID: 27416750 DOI: 10.1093/jnci/djw132] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 04/15/2016] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Helicobacter pylori (H. pylori) is associated with an increased risk of gastric adenocarcinoma and gastric mucosa associated lymphoid tissue (MALT) lymphoma and a decreased risk of esophageal adenocarcinoma. We aimed to assess how eradication therapy for H. pylori influences the risk of developing these cancers. METHODS This was a systematic review and meta-analysis. We searched PubMed, Web of Science, Embase, and the Cochrane Library and selected articles that examined the risk of gastric cancer, MALT lymphoma, or esophageal cancer following eradication therapy, compared with a noneradicated control group. RESULTS Among 3629 articles that were considered, nine met the inclusion criteria. Of these, eight cohort studies assessed gastric cancer while one randomized trial assessed esophageal cancer. Out of 12 899 successfully eradicated patients, 119 (0.9%) developed gastric cancer, compared with 208 (1.1%) out of 18 654 noneradicated patients. The pooled relative risk of gastric cancer in all eight studies was 0.46 (95% confidence interval [CI] = 0.32 to 0.66, I(2) = 32.3%) favoring eradication therapy. The four studies adjusting for time of follow-up and confounders showed a relative risk of 0.46 (95% CI = 0.29 to 0.72, I(2) = 44.4%). CONCLUSIONS This systematic review and meta-analysis indicates that eradication therapy for H. pylori prevents gastric cancer. There was insufficient literature for meta-analysis of MALT lymphoma or esophageal cancer.
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Affiliation(s)
- Eva Doorakkers
- Upper Gastrointestinal Surgery, Department of Molecular medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden (ED, JL, NB); Division of Cancer Studies, King's College London, London, UK (JL); Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden (LE)
| | - Jesper Lagergren
- Upper Gastrointestinal Surgery, Department of Molecular medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden (ED, JL, NB); Division of Cancer Studies, King's College London, London, UK (JL); Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden (LE)
| | - Lars Engstrand
- Upper Gastrointestinal Surgery, Department of Molecular medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden (ED, JL, NB); Division of Cancer Studies, King's College London, London, UK (JL); Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden (LE)
| | - Nele Brusselaers
- Upper Gastrointestinal Surgery, Department of Molecular medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden (ED, JL, NB); Division of Cancer Studies, King's College London, London, UK (JL); Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden (LE)
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Use of VacA as a Vaccine Antigen. Toxins (Basel) 2016; 8:toxins8060181. [PMID: 27338474 PMCID: PMC4926147 DOI: 10.3390/toxins8060181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/31/2016] [Accepted: 06/02/2016] [Indexed: 12/31/2022] Open
Abstract
One of the major toxins secreted by H. pylori is the Vacuolating cytotoxin A (VacA) named after its ability to induce the formation of “vacuole”-like membrane vesicles in the cytoplasm of gastric cells. VacA has been associated with the disruption of mitochondrial functions, stimulation of apoptosis, blockade of T cell proliferation and promotion of regulatory T cells, thereby making it a promising vaccine target. Immunity to bacterial virulence factors is well known to protect humans against bacterial infections; hence, detoxified VacA has been evaluated as a vaccine antigen. Our short review summarizes the pre-clinical and clinical data that have been published on the use of VacA in the development of the H. pylori vaccine.
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Lewis RB, Mehrotra AK, Rodríguez P, Manning MA, Levine MS. From the radiologic pathology archives: gastrointestinal lymphoma: radiologic and pathologic findings. Radiographics 2015; 34:1934-53. [PMID: 25384294 DOI: 10.1148/rg.347140148] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Gastrointestinal (GI) lymphoma encompasses a heterogeneous group of neoplasms that have a common lymphoid origin but variable pathologic and imaging features. Extranodal marginal zone B-cell lymphoma (ENMZL) and diffuse large B-cell lymphoma (DLBCL) are the most common. ENMZL usually occurs in the stomach, where it is associated with chronic infection by Helicobacter pylori, and is typically a superficial spreading lesion that causes mucosal nodularity or ulceration and mild wall thickening. DLBCL may arise de novo or from transformation of ENMZL or other low-grade lymphomas. This form of lymphoma produces extensive wall thickening or a bulky mass, but obstruction is uncommon. Mantle cell lymphoma is the classic cause of lymphomatous polyposis, but multiple polyps or nodules can also be seen with ENMZL and follicular lymphoma. Burkitt lymphoma is usually characterized by an ileocecal mass or wall thickening in the terminal ileum in young children, often in the setting of widespread disease. Primary GI Hodgkin lymphoma, which is rare, may be manifested by a variety of findings, though stenosis is more common than with non-Hodgkin lymphoma. Enteropathy-associated T-cell lymphoma is frequently associated with celiac disease and is characterized by wall thickening, ulceration, and even perforation of the jejunum. Accurate radiologic diagnosis of GI lymphoma requires a multifactorial approach based on the clinical findings, site of involvement, imaging findings, and associated complications.
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Affiliation(s)
- Rachel B Lewis
- From the American Institute for Radiologic Pathology, 1010 Wayne Ave, Suite 320, Silver Spring, MD 20910 (R.B.L., M.A.M.); Department of Radiology and Radiological Sciences, Uniformed Services University of the Health Sciences, Bethesda, Md (R.B.L.); the Joint Pathology Center, Silver Spring, Md (A.K.M.); Department of Radiology, La Princesa University Hospital, Madrid, Spain (P.R.); Department of Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Md (M.A.M.); and Department of Radiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa (M.S.L.)
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Role of Inflammatory Monocytes in Vaccine-Induced Reduction of Helicobacter felis Infection. Infect Immun 2015; 83:4217-28. [PMID: 26283332 DOI: 10.1128/iai.01026-15] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 08/07/2015] [Indexed: 02/07/2023] Open
Abstract
Despite the proven ability of immunization to reduce Helicobacter infection in mouse models, the precise mechanism of protection has remained elusive. In this study, we evaluated the role of inflammatory monocytes in the vaccine-induced reduction of Helicobacter felis infection. We first showed by using flow cytometric analysis that Ly6C(low) major histocompatibility complex class II-positive chemokine receptor type 2 (CCR2)-positive CD64(+) inflammatory monocytes accumulate in the stomach mucosa during the vaccine-induced reduction of H. felis infection. To determine whether inflammatory monocytes played a role in the protection, these cells were depleted with anti-CCR2 depleting antibodies. Indeed, depletion of inflammatory monocytes was associated with an impaired vaccine-induced reduction of H. felis infection on day 5 postinfection. To determine whether inflammatory monocytes had a direct or indirect role, we studied their antimicrobial activities. We observed that inflammatory monocytes produced tumor necrosis factor alpha and inducible nitric oxide synthase (iNOS), two major antimicrobial factors. Lastly, by using a Helicobacter in vitro killing assay, we showed that mouse inflammatory monocytes and activated human monocytes killed H. pylori in an iNOS-dependent manner. Collectively, these data show that inflammatory monocytes play a direct role in the immunization-induced reduction of H. felis infection from the gastric mucosa.
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Zucca E, Bertoni F, Vannata B, Cavalli F. Emerging role of infectious etiologies in the pathogenesis of marginal zone B-cell lymphomas. Clin Cancer Res 2015; 20:5207-16. [PMID: 25320370 DOI: 10.1158/1078-0432.ccr-14-0496] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Extranodal marginal zone B-cell lymphomas of the mucosa-associated lymphoid tissue (MALT) arise from lymphoid populations that are induced by chronic inflammation in extranodal sites. The most frequently affected organ is the stomach, where MALT lymphoma is incontrovertibly associated with a chronic gastritis induced by a microbial pathogen, Helicobacter pylori. Gastric MALT lymphoma therefore represents a paradigm for evaluating inflammation-associated lymphomagenesis, which may lead to a deeper understanding of a possible etiologic association between other microorganisms and nongastric marginal zone lymphomas. Besides infectious etiology, chronic inflammation caused by autoimmune diseases, such as Sjögren syndrome or Hashimoto thyroiditis, can also carry a significant risk factor for the development of marginal zone lymphoma. In addition to the continuous antigenic drive, additional oncogenic events play a relevant role in lymphoma growth and progression to the point at which the lymphoproliferative process may eventually become independent of antigenic stimulation. Recent studies on MALT lymphomas have in fact demonstrated genetic alterations affecting the NF-κB) pathway, a major signaling pathway involved in many cancers. This review aims to present marginal zone lymphoma as an example of the close pathogenetic link between chronic inflammation and tumor development, with particular attention to the role of infectious agents and the integration of these observations into everyday clinical practice. See all articles in this CCR Focus section, "Paradigm Shifts in Lymphoma."
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Affiliation(s)
- Emanuele Zucca
- Lymphoma Unit, Division of Research, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland.
| | - Francesco Bertoni
- Lymphoma Unit, Division of Research, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland. Lymphoma and Genomics Research Program, IOR Institute of Oncology Research, Bellinzona, Switzerland
| | - Barbara Vannata
- Lymphoma Unit, Division of Research, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
| | - Franco Cavalli
- Lymphoma Unit, Division of Research, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
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Nasrat RM, Nasrat MM, Nasrat AM, Nasrat SA. Improvement of Idiopathic Cardiomyopathy After Colon Clear. Cardiol Res 2015; 6:249-254. [PMID: 28197234 PMCID: PMC5295537 DOI: 10.14740/cr398e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2015] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND The study aimed to illustrate the effect of colon clear on idiopathic myocardial dysfunction. Helicobacter pylori colonized the stomach since an immemorial time, as if both the stomach and the bacterium used to live together in peace harmless to each other. H. pylori could migrate or get forced to migrate to the colon; antibiotics are seldom effective against extra-gastric H. pylori strains. The association of H. pylori and some cardiovascular diseases like myocarditis and cardiomyopaty has been sufficiently mentioned in literature. The role played by the increased mucosal production of inflammatory mediators (cytokines) induced by H. pylori among patients with ischemic heart diseases has been also clearly illustrated. The clinical association of gastritis and carditis is controversial. Active lymphocytic myocarditis manifested by intractable ventricular tachycardia, non-specific intra-ventricular block, and myocardial dysfunction has been described in a young woman infected with H. pylori; an immune influence has been emphasized in that patient as a possible etiology behind the development of autoimmune myocarditis. It has been reported also in literature that a possible role of autoimmunity induced by H. pylori in cardiomyopathy cannot be excluded. METHODS Three female patients with frank history of H. pylori dyspepsia and an age range of 41 - 47 years have developed myocaditis complicated with cardiomyopathy as confirmed by echocardiography (ECG) and magnetic resonance imaging (MRI). Existence of H. pylori in the colon was confirmed by H. pylori fecal antigen. Colon clear was done for them. RESULTS Symptomatic improvement and clinical recovery to sinus rhythm with minimal supra-ventricular extra-systoles occurred for all patients after colon clear. Patients continued improvement to normal cardiac tracing and normal left ventricular ejection function within further 3 - 4 weeks. CONCLUSION Colon clear could be a simple and safe measure to improve changes in cardiac rhythm, heart rate and myocardial function developing in association with H. pylori due to inflammatory, toxic or immune reasons.
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Affiliation(s)
- Randa M Nasrat
- Department of Internal Medicine, Helwan Gen Hosp, Cairo, Egypt
| | | | | | - Salwa A Nasrat
- Department of Physiotherapy, Cardiac Surgery Academy, Cairo, Egypt
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Raut SC, Patil VW, Dalvi SM, Bakhshi GD. Helicobacter pylori gastritis, a presequeale to coronary plaque. Clin Pract 2015; 5:717. [PMID: 25918633 PMCID: PMC4387345 DOI: 10.4081/cp.2015.717] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/19/2015] [Accepted: 02/02/2015] [Indexed: 12/11/2022] Open
Abstract
Helicobacter pylori are considered the most common human pathogen colonizing gastric mucosa. Gastritis with or without H. pylori infection is associated with increase in levels of homocysteine and high-sensitivity C-reactive protein (hs-CRP) but a more pronounced increase is noted in gastritis with H. pylori infection. Increasing level of homocysteine, due to decreased absorption of vitamin B12 and folic acid, together with increased CRP levels in gastritis with H. pylori infection may be the earliest event in the process of atherosclerosis and plaque formation. Retrospective study conducted at tertiary care hospital in Mumbai by Department of Biochemistry in association with Department of Surgery. Eighty patients who underwent gastroscopy in view of gastritis were subjected to rapid urease test for diagnosis of H. pylori infection. Vitamin B12, folic acid, homocysteine and hs-CRP were analyzed using chemiluminescence immuno assay. Student’s t-test, Pearson’s correlation and linear regression used for statistical analysis. Patients with H. pylori gastritis had significantly lower levels of vitamin B12 (271.6±101.3 vs 390.6±176.7 pg/mL; P=0.0005), as well as higher levels of homocysteine (17.4±7.4 vs 13.8±7.8 µmol/L; P=0.037) and hs-CRP (2.5±2.9 vs 1.2±1.1 mg/L; P=0.017), than in patients without H. pylori gastritis. However, folic acid showed (8.9±3.2 vs 10.0±3.6 ng/mL; P=0.171) no significant difference. Elevated homocysteine and hs-CRP in H. pylori gastritis may independently induce endothelial dysfunction, leading to cardiovascular pathology.
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Affiliation(s)
- Shrikant C Raut
- Department of Biochemistry, Grant Government Medical College and Sir JJ Group of Hospitals , Byculla, Mumbai, India
| | - Vinayak W Patil
- Department of Biochemistry, Grant Government Medical College and Sir JJ Group of Hospitals , Byculla, Mumbai, India
| | - Shubhangi M Dalvi
- Department of Biochemistry, Grant Government Medical College and Sir JJ Group of Hospitals , Byculla, Mumbai, India
| | - Girish D Bakhshi
- Department of Surgery, Grant Government Medical College and Sir JJ Group of Hospitals , Byculla, Mumbai, India
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Nasrat SAM, Nasrat AM. An Alternative Approach for the Rising Challenge of Hypertensive Illness via Helicobacter pylori Eradication. Cardiol Res 2015; 6:221-225. [PMID: 28197229 PMCID: PMC5295557 DOI: 10.14740/cr382e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/03/2015] [Indexed: 01/28/2023] Open
Abstract
Background The aim of the study was to demonstrate the effect of natural Helicobacter pylori eradication on blood pressure values. The prevalence of hypertension in developing countries has been considered by some reports a consequence of progress and life style changes. In spite of that, traditional risk factors do not appear fully sufficient to explain the rising figures of hypertensive illness which further indicates that attempts to control the problem depending upon traditional measures can never be adequate or decisive. H. pylori could migrate or get forced to migrate to the colon; it will continue producing ammonia for a reason or no reason leading to accumulation of profuse toxic amounts of ammonia, unopposed or buffered by any acidity, which could lead to multiple colonic and a high rectal spasm. A colonic re-absorptive error is established with excessive fluid and salt retention in the body that would definitely lead to hypertension which is supposed to remain inadequately controlled without correction of the underlying etiologic pathological error. It is a prospective study, conducted at Balghsoon Polyclinic, Jeddah, Saudi Arabia. Methods Ninety-nine middle-aged male patients with essential hypertension under medications and positive for H. pylori dyspepsia were included in the study. They were given natural therapy for H. pylori eradication. Results Ninety patients were able to resume normal blood pressure (BP) values and quit their medications. Conclusion The concept of the colonic re-absorptive error considered in this study is not just hypothetical as upon its basis, most patients of the study (90.9%) were able to quit medications and maintain normal BP values.
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Affiliation(s)
- Salwa A M Nasrat
- Department of Physical Therapy, Cardiac Surgery Academy, Cairo, Egypt
| | - Abdullah M Nasrat
- Department of Surgery, Balghsoon Clinic, Jeddah, KSA; Department of Genomic Medical Research, King Fahad Research Center, KAAU, Jeddah, KSA; Department of Surgery, KAAU, Jeddah, KSA
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Zhao X, Wang L, Zhang S, Wang S, Sun Y, Zhao W. [Clinical characteristics and prognostic analysis of 90 patients with primary gastro-intestinal marginal zone lymphoma]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2015; 36:24-8. [PMID: 25641141 PMCID: PMC7343044 DOI: 10.3760/cma.j.issn.0253-2727.2015.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the clinical characteristics and prognostic factors of patients with primary gastro-intestinal marginal zone lymphoma (MALT). METHODS Retrospective analysis was performed in 90 patients diagnosed with primary gastro-intestinal MALT lymphoma clinical characteristics and survival analyses. RESULTS Among 90 patients, 78 cases were originated from the stomach and 12 cases with extra-gastric origin. Eighty patients were classified as low-risk (IPI score 0-2), and 10 patients high-risk (IPI score 3-5). Compared to gastric MALT patients, extra-gastric cases presented with higher IPI score (7.7% vs 33.3%, P=0.025) and higher Hp infection rate (50.0% vs 87.2%, P<0.01). Treatment options for low risk patients (IPI score 0-2) included Hp eradication, surgery, radiotherapy and chemotherapy. Chemotherapy could improve progression-free survival (PFS) in low-risk patients. For high-risk patients, those receiving chemotherapy had 100% 3-year overall survival (OS). Univariate analysis revealed that ECOG (P=0.006), Mussh-off staging (P=0.008), IPI score (P=0.000), elevated LDH (P=0.019) and chemotherapy (P=0.026) were correlated with PFS. Multivariate analysis showed that higher IPI score (IPI 3-5) (OR=8.325, 95% CI 3.171-21.853, P=0.000) and chemotherapy (OR=0.319, 95% CI 0.121-0.838, P=0.020) were independent prognostic factors for PFS. ECOG (≥ 2) was independent prognostic factor for OS (OR=5.092, 95%CI 1.005-25.788, P=0.049). CONCLUSION Primary gastro-intestinal MALT lymphoma was an indolent subtype of non-Hodgkin's lymphoma. Patients usually had low risk IPI and achieved long-term survival. Frontline therapy for low-risk patients was radiotherapy or Hp eradication, and chemotherapy for high-risk ones.
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Affiliation(s)
- Xia Zhao
- Department of Hematology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine. Shanghai 200025, China
| | - Li Wang
- Department of Hematology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine. Shanghai 200025, China
| | - Shengting Zhang
- Department of Hematology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine. Shanghai 200025, China
| | - Shubei Wang
- Department of Hematology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine. Shanghai 200025, China
| | - Yunwei Sun
- Department of Hematology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine. Shanghai 200025, China
| | - Weili Zhao
- Department of Hematology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine. Shanghai 200025, China
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