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2018 ; 9
(ä): 751
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gab.com Text
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English Wikipedia
Lactose Induces Phenotypic and Functional Changes of Neutrophils and Macrophages
to Alleviate Acute Pancreatitis in Mice
#MMPMID29719535
Pan LL
; Deng YY
; Wang R
; Wu C
; Li J
; Niu W
; Yang Q
; Bhatia M
; Gudmundsson GH
; Agerberth B
; Diana J
; Sun J
Front Immunol
2018[]; 9
(ä): 751
PMID29719535
show ga
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)-? 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.
|Acute Disease
[MESH]
|Animals
[MESH]
|Ceruletide
[MESH]
|Cytokines/immunology
[MESH]
|Female
[MESH]
|Immunologic Factors/pharmacology/*therapeutic use
[MESH]