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Lactose Induces Phenotypic and Functional Changes of Neutrophils and Macrophages to Alleviate Acute Pancreatitis in Mice

Lactose Induces Phenotypic and Functional Changes of Neutrophils and Macrophages to Alleviate Acute Pancreatitis in Mice


Titill: Lactose Induces Phenotypic and Functional Changes of Neutrophils and Macrophages to Alleviate Acute Pancreatitis in Mice
Höfundur: Pan, Li-Long
Deng, Yuan-Yuan
Wang, Ruxing
Wu, Chengfei
Li, Jiahong
Niu, Wenying
Yang, Qin
Bhatia, Madhav
Guðmundsson, Guðmundur Hrafn
Agerberth, Birgitta
... 2 fleiri höfundar Sýna alla höfunda
Útgáfa: 2018-04-17
Tungumál: Enska
Umfang: 751
Háskóli/Stofnun: Háskóli Íslands
University of Iceland
Svið: Verkfræði- og náttúruvísindasvið (HÍ)
School of Engineering and Natural Sciences (UI)
Deild: Lífvísindasetur (HÍ)
Biomedical Center (UI)
Birtist í: Frontiers in Immunology;9
ISSN: 1664-3224
DOI: 10.3389/fimmu.2018.00751
Efnisorð: Lactose; Inflammation; Immunoregulation; Neutrophils; Macrophages; Mjólkursykur; Brisbólga; Kviðarhol
URI: https://hdl.handle.net/20.500.11815/973

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Tilvitnun:

Pan, L.-L., Deng, Y.-Y., Wang, R., Wu, C., Li, J., Niu, W., . . . Sun, J. (2018). Lactose Induces Phenotypic and Functional Changes of Neutrophils and Macrophages to Alleviate Acute Pancreatitis in Mice. Frontiers in Immunology, 9(751). doi:10.3389/fimmu.2018.00751

Útdráttur:

Acute pancreatitis (AP) is one common clinical acute abdominal disease, for which specific pharmacological or nutritional therapies remain elusive. Lactose, a macronutrient and an inducer of host innate immune responses, possesses immune modulatory functions. The current study aimed to investigate potential modulatory effects of lactose and the interplay between the nutrient and pancreatic immunity during experimentally induced AP in mice. We found that either prophylactic or therapeutic treatment of lactose time-dependently reduced the severity of AP, as evidenced by reduced pancreatic edema, serum amylase levels, and pancreatic myeloperoxidase activities, as well as by histological examination of pancreatic damage. Overall, lactose promoted a regulatory cytokine milieu in the pancreas and reduced infiltration of inflammatory neutrophils and macrophages. On acinar cells, lactose was able to suppress caerulein-induced inflammatory signaling pathways and to suppress chemoattractant tumor necrosis factor (TNF)-α and monocyte chemotactic protein-1 production. Additionally, lactose acted on pancreas-infiltrated macrophages, increasing interleukin-10 and decreasing tumor necrosis factor alpha production. Notably, lactose treatment reversed AP-associated infiltration of activated neutrophils. Last, the effect of lactose on neutrophil infiltration was mimicked by a galectin-3 antagonist, suggesting a potential endogenous target of lactose. Together, the current study demonstrates an immune regulatory effect of lactose to alleviate AP and suggests its potential as a convenient, value-added therapeutic macronutrient to control AP, and lower the risk of its systemic complications.

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This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms

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