1. Celiac disease: role of intestinal compartments in the mucosal immune response
- Author
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Michele Schettino, Armando Masucci, Giuseppe Iacomino, Gaetano Iaquinto, Salvatore Auricchio, Ilaria Stillitano, Angela Marano, Vera Rotondi Aufiero, Giuseppe Mazzarella, Riccardo Troncone, Iacomino, G, Marano, Antonio, Stillitano, I, Aufiero, V, Iaquinto, G, Schettino, M, Masucci, Anna, Troncone, Riccardo, Auricchio, Salvatore, and Mazzarella, Giuseppe
- Subjects
0301 basic medicine ,Adult ,Male ,Pathology ,medicine.medical_specialty ,Clinical Biochemistry ,Adaptive immunity ,Cytokine Expression Profile ,Biology ,03 medical and health sciences ,Young Adult ,Immune system ,Intestinal mucosa ,Gene expression ,medicine ,Humans ,Celiac disease ,Intestinal compartments ,Intestinal Mucosa ,Molecular Biology ,Laser capture microdissection ,Innate immunity ,Lamina propria ,Innate immune system ,Cell Biology ,General Medicine ,Middle Aged ,Epithelium ,030104 developmental biology ,medicine.anatomical_structure ,Case-Control Studies ,Cytokines ,Female - Abstract
Different approaches have been used to study the pattern of cytokines in celiac disease (CD). Laser capture microdissection (LCM) is a powerful tool for the isolation of specific tissue compartments. We aimed to investigate the mucosal immune response that takes place in different intestinal compartments of CD patients, dissected by LCM, analyzing cytokine expression profile. Frozen section of jejunum was obtained from 15 untreated CD and 15 control. Surface epithelium and lamina propria compartment were isolated by LCM. RNA from each LCM sample was extracted and, after a retrotranscription step, messenger RNA levels for MxA, IL-15, TNF-α, IFN-γ, IL-17α, IL-21, IL-10, and TGF-β were determined by quantitative reverse transcriptase-PCR. Increased gene expression levels of MxA, IL-15, TNF-α, IL-10, and TGF-β was observed in the surface epithelium of untreated CD with respect to control. Furthermore, all the cytokines investigated were upregulated in the lamina propria of untreated CD as compared to control. Within the untreated CD group the expression of IL-15 was higher, in the surface epithelium than in the lamina propria, whereas the expression levels of IL-17 and IL-21 were higher in the lamina propria than in the surface epithelium. Finally, high levels of IL-10 and TGF-β were detected in both compartments of untreated CD biopsies. In CD, surface epithelium and lamina propria compartments, play a prominent role in determining innate and adaptive immunity, respectively. Conversely, surface epithelium and lamina propria produce high levels of anti-inflammatory cytokines, suggesting that both compartments are involved in the immunoregulatory response.
- Published
- 2016