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Eosinophils in gastrointestinal tract

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https://www.readbyqxmd.com/read/28814067/neuro-immune-interactions-in-allergic-diseases-novel-targets-for-therapeutics
#1
Tiphaine Voisin, Amélie Bouvier, Isaac M Chiu
Recent studies have highlighted an emerging role for neuro-immune interactions in mediating allergic diseases. Allergies are caused by an overactive immune response to a foreign antigen. The peripheral sensory and autonomic nervous system densely innervates mucosal barrier tissues including the skin, respiratory tract and gastrointestinal (GI) tract that are exposed to allergens. It is increasingly clear that neurons actively communicate with and regulate the function of mast cells, dendritic cells, eosinophils, Th2 cells and type 2 innate lymphoid cells in allergic inflammation...
June 1, 2017: International Immunology
https://www.readbyqxmd.com/read/28791287/bidirectional-mast-cell-eosinophil-interactions-in-inflammatory-disorders-and-cancer
#2
REVIEW
Maria Rosaria Galdiero, Gilda Varricchi, Mansour Seaf, Giancarlo Marone, Francesca Levi-Schaffer, Gianni Marone
Human mast cells (MCs) and eosinophils were first described and named by Paul Ehrlich. These cells have distinct myeloid progenitors and differ morphologically, ultrastructurally, immunologically, biochemically, and pharmacologically. However, MCs and eosinophils play a pivotal role in several allergic disorders. In addition, these cells are involved in autoimmune disorders, cardiovascular diseases, and cancer. MCs are distributed throughout all normal human tissues, whereas eosinophils are present only in gastrointestinal tract, secondary lymphoid tissues, and adipose tissue, thymus, mammary gland, and uterus...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28769105/transcriptome-profiling-of-mouse-colonic-eosinophils-reveals-a-key-role-for-eosinophils-in-the-induction-of-s100a8-and-s100a9-in-mucosal-healing
#3
Reichman Hadar, Moshkovits Itay, Itan Michal, Pasmanik-Chor Metsada, Vogl Thomas, Roth Johannes, Munitz Ariel
Eosinophils are bone marrow-derived cells that have been largely implicated in Th2-associated diseases. Recent data highlights a key role for eosinophils in mucosal innate immune responses especially in the gastrointestinal (GI) tract, which is one of the largest eosinophil reservoirs in the body. Although eosinophils express and synthesize a plethora of proteins that can mediate their effector activities, the transcriptome signature of eosinophils in mucosal inflammation and subsequent repair has been considerably overlooked...
August 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28725075/eosinophilic-esophagitis-leaky-gullet-or-leaky-gut
#4
David A Katzka
Eosinophilic esophagitis (EoE) is a food allergen disorder driven by antigen recognition in the gastrointestinal tract. The study by Warners et al., strongly supports the esophageal epithelium as the area of disturbed permeability and primary target for initiation of the TH2-induced allergic pathway. In contrast, small bowel assessment reveals a lack of clear change in aspects of permeability compared to controls. It is not clear, however, if the available testing used for this purpose accurately assesses the mechanisms by which antigen recognition may occur in this organ...
July 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28695686/imprint-cytology-of-clear-cell-sarcoma-like-tumor-of-the-gastrointestinal-tract-in-the-small-intestine-a-case-report
#5
Takashi Kato, Shin Ichihara, Hiroko Gotoda, Shunji Muraoka, Terufumi Kubo, Shintaro Sugita, Tadashi Hasegawa
Clear cell sarcoma-like tumor of the gastrointestinal tract (CCSLGT) is an extremely rare malignant neoplasm in the digestive tract. Its cytomorphologic features have never previously been reported. Here, we describe a case of CCSLGT, including its cytologic examination findings. A 47-year-old woman presented with a mass in the small intestine, which was resected and sent for imprint cytology. Imprint smears revealed tumor cells with light eosinophilic or clear cytoplasm in a necrotic background. Many of the tumor cells were arranged in a perivascular growth with a pseudopapillary formation, and there were some non-neoplastic osteoclast-like giant cells...
July 11, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28611564/eosinophilic-pancreatitis-a-rare-cause-of-recurrent-acute-pancreatitis
#6
Jennifer Reppucci, Michael Chang, Steven Hughes, Xiuli Liu
Eosinophilic pancreatitis is a rare form of recurrent acute pancreatitis that demonstrates distinct histologic features, including diffuse, periductal, acinar, and septal inflammatory infiltrates comprised of a pure or predominant population of eosinophils, eosinophilic phlebitis and arteritis, and localized eosinophilic infiltrates with pseudocyst formation. It is associated with elevated serum immunoglobulin E levels, an elevated eosinophil count with systemic manifestations, and eosinophilic infiltrates in other organs of the gastrointestinal tract...
January 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28572468/longterm-prognosis-of-121-patients-with-eosinophilic-granulomatosis-with-polyangiitis-in-japan
#7
Naomi Tsurikisawa, Chiyako Oshikata, Arisa Kinoshita, Takahiro Tsuburai, Hiroshi Saito
OBJECTIVE: We investigated the risk factors for relapse or prognosis of eosinophilic granulomatosis with polyangiitis (EGPA) in Japanese patients presenting to our hospital. METHODS: From June 1999 through March 2015, we retrospectively recruited 121 patients with EGPA according to the American College of Rheumatology criteria. Frequent relapse was defined as disease occurrence at least once every 2 years after a period of initial remission. The study endpoint was the last examination performed...
June 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28533657/esophagitis-and-its-causes-who-is-guilty-when-acid-is-found-not-guilty
#8
EDITORIAL
Laurino Grossi, Antonio Francesco Ciccaglione, Leonardo Marzio
Esophagitis is mainly a consequence of gastroesophageal reflux disease, one of the most common diseases affecting the upper digestive tract. However the esophageal mucosa can also be targeted by some infectious, systemic or chemical conditions. Eosinophilic esophagitis (EoE) is an immune-mediated inflammatory disease, characterized by eosinophilic infiltration in the mucosa. Esophageal localization of Crohn's disease is not very common, but it should always be considered in patients with inflammatory bowel disease complaining of upper digestive tract symptoms...
May 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28502433/eosinophilic-gastrointestinal-disorders
#9
REVIEW
Lisa M Fahey, Chris A Liacouras
Eosinophilic esophagitis (EoE) is an atopic disease that is characterized by an isolated infiltration of eosinophils into the epithelium of the esophagus and is triggered by specific allergens. Patients should undergo an upper endoscopy with biopsy after 6 to 8 weeks of treatment with a proton pump inhibitor in order to make the diagnosis of EoE. Eosinophilic gastroenteritis is a pathologic eosinophilic infiltration of any portion of the gastrointestinal tract, and eosinophilic proctocolitis is an eosinophilic infiltration in the colon alone...
June 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/28497923/ccr3-monoclonal-antibody-inhibits-eosinophilic-inflammation-and-mucosal-injury-in-a-mouse-model-of-eosinophilic-gastroenteritis
#10
Dae Jin Song, Mun Hee Shim, Nahyun Lee, Young Yoo, Ji Tae Choung
PURPOSE: Although the role of eosinophils in eosinophilic gastroenteritis (EGE) is not fully understood, they are believed to be a principal effector cell. Previous studies have demonstrated that eotaxin and its specific receptor, cysteine-cysteine chemokine receptor-3 (CCR3), play a central role in eosinophil trafficking into the gastrointestinal (GI) tract. Thus, we examined the targeting of CCR3 as a potential therapeutic intervention for EGE in a mouse model. METHODS: Eight- to 10-week-old BALB/c mice were intraperitoneally sensitized and intragastrically challenged with ovalbumin (OVA)...
July 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28390860/basophil-derived-il-4-promotes-epicutaneous-antigen-sensitization-concomitant-with-the-development-of-food-allergy
#11
Maryam Hussain, Loïc Borcard, Kevin P Walsh, Maria Pena Rodriguez, Christoph Mueller, Brian S Kim, Masato Kubo, David Artis, Mario Noti
BACKGROUND: Exaggerated thymic stromal lymphopoietin (TSLP) production and infiltration of basophils are associated with the pathogenesis of atopic dermatitis (AD), a recognized risk factor for the development of food allergies. Although TSLP and basophils have been implicated in promotion of food-induced allergic disorders in response to epicutaneous sensitization, the mechanisms by which TSLP-elicited basophils guide the progression of allergic inflammation in the skin to distant mucosal sites, such as the gastrointestinal tract, are poorly understood...
April 6, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28370248/the-pathology-and-causes-of-tissue-eosinophilia-in-the-gastrointestinal-tract
#12
REVIEW
James R Conner, Richard Kirsch
Eosinophilic inflammation in the gastrointestinal tract may occur as a primary eosinophilic disorder or as a secondary response with other causes. Primary eosinophilic gastrointestinal disorders (EGIDs) are Th2-mediated allergic diseases that overlap pathogenetically with atopic conditions involving other organs. The pathological diagnosis of primary EGIDs can be challenging, as the quantity of eosinophils considered to be 'abnormal' is difficult to define, and the diagnosis, by definition, requires exclusion of the far more common secondary causes...
March 31, 2017: Histopathology
https://www.readbyqxmd.com/read/28338484/the-importance-of-biopsy-sampling-practices-in-the-pathologic-evaluation-of-gastrointestinal-disorders
#13
Nicole C Panarelli, Rhonda K Yantiss
PURPOSE OF REVIEW: To summarize the literature regarding appropriate endoscopic sampling and surveillance protocols for common inflammatory diseases of the digestive tract. Gastroenterologists increasingly use endoscopy with mucosal biopsy to detect inflammatory diseases, assess response to therapy, and monitor for progression to dysplasia. RECENT FINDINGS: Many diseases show a patchy distribution in the digestive tract and there may be poor correlation between the endoscopic appearance and presence of histologic abnormalities...
September 2016: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28299223/hematemesis-as-initial-presentation-in-a-10-week-old-infant-with-eosinophilic-gastroenteritis
#14
Varun Shetty, Kayla E Daniel, Anil Kesavan
Eosinophilic gastroenteritis is a rare condition characterized by eosinophilic inflammation in the gastrointestinal tract resulting in a variety of gastrointestinal symptoms. There is currently a dearth of information on this topic in the pediatric literature, as very few cases have been reported. In this report, we present a case of eosinophilic gastroenteritis in a 10-week-old patient with initial presenting symptom of hematemesis. To our knowledge, this is the youngest case reported in the literature and is unique in its initial presentation...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28261032/eosinophilic-colitis-in-children
#15
Urszula Grzybowska-Chlebowczyk, Sabina Horowska-Ziaja, Maciej Kajor, Sabina Więcek, Wojciech Chlebowczyk, Halina Woś
INTRODUCTION: Eosinophilic colitis, which is a rare form of eosinophilic gastrointestinal diseases, occurs as primary and secondary allergic eosinophilic colitis of the gastrointestinal tract infection, inflammatory bowel disease, celiac disease, and vasculitis. The diagnosis is based on a significant amount of eosinophils in the inflammatory infiltrate of the colon wall. AIM: To analyze the clinical picture taking into account comorbidities and endoscopic picture in children with eosinophilic colitis...
February 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/28247277/diagnosis-and-treatment-of-eosinophilic-esophagitis-in-clinical-practice
#16
REVIEW
Yasuhiko Abe, Yu Sasaki, Makoto Yagi, Takao Yaoita, Shoichi Nishise, Yoshiyuki Ueno
Eosinophilic esophagitis (EoE) is a chronic and abnormal Th2 type immunological response characterized by intense eosinophilic inflammation localized within the esophagus. This leads to esophageal dysfunction and remodeling accompanied by subepithelial fibrosis. Recently, EoE has been recognized as one of the major causes of dysphagia or food impaction in adults. The prevalence of EoE has been increasing over the past several decades, particularly in Western countries. EoE should be differentiated from secondary esophageal eosinophilia (EE) in gastroesophageal reflux disease (GERD) and eosinophilic gastroenteritis, involving the entire gastrointestinal tract...
April 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28226319/oral-and-sublingual-immunotherapy-potential-causes-for-eosinophilic-gastrointestinal-disorders
#17
REVIEW
Delara Babaie, Mehrnaz Mesdaghi, Makoto Nishino, Mahboubeh Mansouri, Motohiro Ebisawa
Food allergy is a common health problem worldwide, with increasing prevalence during recent decades. The only approved treatments for food allergy are food avoidance and administration of emergency medications in case of accidental exposure, which negatively affects patients' quality of life, so new treatments are highly desirable. Different food immunotherapy modalities have recently been used, with variable success rates in the induction of desensitization and tolerance, and different numbers and types of adverse reactions...
2017: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/28225494/a-unique-case-of-inflammatory-fibroid-polyp-in-the-duodenum-of-a-female-adolescent-case-report-and-literature-review
#18
REVIEW
Mauricio Giusti Calderon, Valéria Campos Caivano, Sauro Bagnaresi, José Ozório de Oliveira Lira, Rodrigo Daminello Raimundo, Luiz Carlos de Abreu, João Antonio Correa
BACKGROUND: Inflammatory fibroid polyp (IFP) is a very rare benign condition in children that can occur throughout the gastrointestinal tract. It is characterized as a polypoid lesion originating in the submucosa, composed of connective tissue and eosinophilic infiltrate. It is most common in the stomach and in adults between the fifth and seventh decades of life. Its occurrence is unusual in the duodenum. CASE SUMMARY: One case of duodenal IFP was described and the literature is reviewed with emphasis on the clinical and pathological features of IFP in children...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28220362/the-role-of-impedance-planimetry-in-the-evaluation-of-esophageal-disorders
#19
REVIEW
Nitin K Ahuja, John O Clarke
PURPOSE OF REVIEW: Impedance planimetry measures tissue wall distensibility as a function of pressure and cross-sectional area. Recent interest in this technique's relevance to the gastrointestinal tract has been accelerated by the availability of the functional lumen imaging probe, a catheter-based system that dynamically quantitates these biomechanical properties. Herein, we review the device's particular utility in the setting of esophageal pathology, including processes affecting the esophageal body as well as the upper and lower esophageal sphincters...
February 2017: Current Gastroenterology Reports
https://www.readbyqxmd.com/read/28131390/calpain-14-and-its-association-with-eosinophilic-esophagitis
#20
REVIEW
Vladislav A Litosh, Mark Rochman, Jeffrey K Rymer, Aleksey Porollo, Leah C Kottyan, Marc E Rothenberg
Calpains are a family of intracellular, calcium-dependent cysteine proteases involved in a variety of regulatory processes, including cytoskeletal dynamics, cell-cycle progression, signal transduction, gene expression, and apoptosis. These enzymes have been implicated in a number of disease processes, notably for this review involving eosinophilic tissue inflammation, such as eosinophilic esophagitis (EoE), a chronic inflammatory disorder triggered by allergic hypersensitivity to food and associated with genetic variants in calpain 14 (CAPN14)...
June 2017: Journal of Allergy and Clinical Immunology
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