Nondigestible oligosaccharides exert nonprebiotic effects on intestinal epithelial cells enhancing the immune response via activation of TLR4-NFκB

2013 ◽  
Vol 58 (2) ◽  
pp. 384-393 ◽  
Author(s):  
Mercedes Ortega-González ◽  
Borja Ocón ◽  
Isabel Romero-Calvo ◽  
Andrea Anzola ◽  
Emilia Guadix ◽  
...  
Keyword(s):  
Immune Response ◽  
Epithelial Cells ◽  
Intestinal Epithelial Cells ◽  
Intestinal Epithelial

scholarly journals Protective Effects of Lactoferrin against SARS-CoV-2 Infection In Vitro

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 328 ◽  
Author(s):  
Claudio Salaris ◽  
Melania Scarpa ◽  
Marina Elli ◽  
Alice Bertolini ◽  
Simone Guglielmetti ◽  
...  
Keyword(s):  
Immune Response ◽  
Epithelial Cells ◽  
Intestinal Epithelial Cells ◽  
Plaque Assay ◽  
Immune Response Gene ◽  
Intestinal Epithelial ◽  
Antiviral Immune Response ◽  
Qrt Pcr ◽  
Anti Inflammatory

SARS-CoV-2 is a newly emerging virus that currently lacks curative treatments. Lactoferrin (LF) is a naturally occurring non-toxic glycoprotein with broad-spectrum antiviral, immunomodulatory and anti-inflammatory effects. In this study, we assessed the potential of LF in the prevention of SARS-CoV-2 infection in vitro. Antiviral immune response gene expression was analyzed by qRT-PCR in uninfected Caco-2 intestinal epithelial cells treated with LF. An infection assay for SARS-CoV-2 was performed in Caco-2 cells treated or not with LF. SARS-CoV-2 titer was determined by qRT-PCR, plaque assay and immunostaining. Inflammatory and anti-inflammatory cytokine production was determined by qRT-PCR. LF significantly induced the expression of IFNA1, IFNB1, TLR3, TLR7, IRF3, IRF7 and MAVS genes. Furthermore, LF partially inhibited SARS-CoV-2 infection and replication in Caco-2 intestinal epithelial cells. Our in vitro data support LF as an immune modulator of the antiviral immune response with moderate effects against SARS-CoV-2 infection.

W1612 Apical Exposure of Intestinal Epithelial Cells to Lactobacilli But Not Bifidobacteria Enhances the Effector Immune Response In Vitro

2009 ◽  
Vol 136 (5) ◽  
pp. A-702
Author(s):  
Els van Hoffen ◽  
Nicoline M. Korthagen ◽  
Sander de Kivit ◽  
Bastiaan Schouten ◽  
Bart Bardoel ◽  
...  
Keyword(s):  
Immune Response ◽  
Epithelial Cells ◽  
Intestinal Epithelial Cells ◽  
Intestinal Epithelial ◽  
Effector Immune Response ◽  
Immune Response In Vitro

scholarly journals Lactobacillus delbrueckii CRL 581 Differentially Modulates TLR3-Triggered Antiviral Innate Immune Response in Intestinal Epithelial Cells and Macrophages

2021 ◽  
Vol 9 (12) ◽  
pp. 2449
Author(s):  
Mariano Elean ◽  
Leonardo Albarracin ◽  
Kohtaro Fukuyama ◽  
Binghui Zhou ◽  
Mikado Tomokiyo ◽  
...  
Keyword(s):  
Immune Response ◽  
Epithelial Cells ◽  
Innate Immune Response ◽  
Intestinal Epithelial Cells ◽  
Starter Culture ◽  
Innate Immune ◽  
Lactobacillus Delbrueckii ◽  
Poly I:C ◽  
Intestinal Epithelial ◽  
Antiviral Immune Response

Lactobacillus delbrueckii subsp. lactis CRL 581 beneficially modulates the intestinal antiviral innate immune response triggered by the Toll-like receptor 3 (TLR3) agonist poly(I:C) in vivo. This study aimed to characterize further the immunomodulatory properties of the technologically relevant starter culture L. delbrueckii subsp. lactis CRL 581 by evaluating its interaction with intestinal epithelial cells and macrophages in the context of innate immune responses triggered by TLR3. Our results showed that the CRL 581 strain was able to adhere to porcine intestinal epithelial (PIE) cells and mucins. The CRL 581 strain also augmented the expression of antiviral factors (IFN-α, IFN-β, Mx1, OAS1, and OAS2) and reduced inflammatory cytokines in PIE cells triggered by TLR3 stimulation. In addition, the influence of L. delbrueckii subsp. lactis CRL 581 on the response of murine RAW macrophages to the activation of TLR3 was evaluated. The CRL 581 strain was capable of enhancing the expression of IFN-α, IFN-β, IFN-γ, Mx1, OAS1, TNF-α, and IL-1β. Of note, the CRL 581 strain also augmented the expression of IL-10 in macrophages. The results of this study show that the high proteolytic strain L. delbrueckii spp. lactis CRL 581 was able to beneficially modulate the intestinal innate antiviral immune response by regulating the response of both epithelial cells and macrophages relative to TLR3 activation.

scholarly journals The yin and yang of intestinal epithelial cells in controlling dendritic cell function

2007 ◽  
Vol 204 (10) ◽  
pp. 2253-2257 ◽  
Author(s):  
Iliyan D. Iliev ◽  
Gianluca Matteoli ◽  
Maria Rescigno
Keyword(s):  
Immune Response ◽  
Epithelial Cells ◽  
Cell Function ◽  
Intestinal Epithelial Cells ◽  
Immunological Tolerance ◽  
Intestinal Epithelial ◽  
Pathogenic Microorganisms ◽  
Dendritic Cell Function ◽  
Mucosal Tissues ◽  
Yin And Yang

Recent work suggests that dendritic cells (DCs) in mucosal tissues are “educated” by intestinal epithelial cells (IECs) to suppress inflammation and promote immunological tolerance. After attack by pathogenic microorganisms, however, “non-educated” DCs are recruited from nearby areas, such as the dome of Peyer's patches (PPs) and the blood, to initiate inflammation and the ensuing immune response to the invader. Differential epithelial cell (EC) responses to commensals and pathogens may control these two tolorogenic and immunogenic functions of DCs.

scholarly journals Immunobiotic lactic acid bacteria beneficially regulate immune response triggered by poly(I:C) in porcine intestinal epithelial cells

2011 ◽  
Vol 42 (1) ◽  
pp. 111 ◽  
Author(s):  
Shoichi Hosoya ◽  
Julio Villena ◽  
Tomoyuki Shimazu ◽  
Masanori Tohno ◽  
Hitomi Fujie ◽  
...  
Keyword(s):  
Immune Response ◽  
Lactic Acid ◽  
Epithelial Cells ◽  
Lactic Acid Bacteria ◽  
Intestinal Epithelial Cells ◽  
Poly I:C ◽  
Intestinal Epithelial

Lactobacilli stimulate the innate immune response and modulate the TLR expression of HT29 intestinal epithelial cells in vitro

2009 ◽  
Vol 133 (1-2) ◽  
pp. 86-93 ◽  
Author(s):  
María G. Vizoso Pinto ◽  
Manuel Rodriguez Gómez ◽  
Stephanie Seifert ◽  
Bernhard Watzl ◽  
Wilhelm H. Holzapfel ◽  
...  
Keyword(s):  
Immune Response ◽  
Epithelial Cells ◽  
Innate Immune Response ◽  
Intestinal Epithelial Cells ◽  
Innate Immune ◽  
Intestinal Epithelial
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