TY - JOUR
T1 - Chronic ethanol consumption alters lamina propria leukocyte response to stimulation in a region-dependent manner
AU - Barr, Tasha
AU - Lewis, Sloan A.
AU - Sureshchandra, Suhas
AU - Doratt, Brianna
AU - Grant, Kathleen A.
AU - Messaoudi, Ilhem
N1 - Funding Information:
This work was supported by the U. S. National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism (NIAAA) Grants F31 AA025278 (to T. B.), R21 AA021947 (to I. M.), R21 AA024981 (to I. M.), U01 AA013510 (to K. A. G.), and R24 AA109431 (to K. A. G.). The authors declare no conflicts of interest.
Publisher Copyright:
© FASEB
PY - 2019/6/1
Y1 - 2019/6/1
N2 - Chronic heavy alcohol consumption, also referred to as chronic heavy drinking (CHD), results in intestinal injury characterized by increased permeability, dysbiosis, nutrient malabsorption, potentially higher susceptibility to infection, and increased risk of colorectal cancer. However, our understanding of the mechanisms by which CHD results in intestinal damage remains incomplete. Here, we investigated the impact of chronic drinking on transcriptional and functional responses of lamina propria leukocytes (LPLs) isolated from the 4 major gut sections. Although no significant differences were detected between LPLs isolated from the ethanol and control groups at resting state within each major gut section, our analysis uncovered key regional differences in composition and function of LPLs independent of alcohol consumption. However, in response to phorbol myristate acetate and ionomycin, duodenal LPLs from ethanol-drinking animals generated a dampened response, whereas jejunal and ileal LPLs from ethanol-drinking animals produced a heightened response. Transcriptional responses following stimulation were pronounced in ileal and duodenal LPLs from the ethanol-drinking group but less evident in jejunal and colonic LPLs compared with controls, suggesting a more significant impact of alcohol on these gut regions. The altered intestinal LPL function detected in our study reveals remarkable region specificity and novel insight into potential mechanisms of intestinal injury associated with CHD.—Barr, T., Lewis, S. A., Sureshchandra, S., Doratt, B., Grant, K. A., Messaoudi, I. Chronic ethanol consumption alters lamina propria leukocyte response to stimulation in a region-dependent manner. FASEB J. 33, 7767–7777 (2019). www.fasebj.org.
AB - Chronic heavy alcohol consumption, also referred to as chronic heavy drinking (CHD), results in intestinal injury characterized by increased permeability, dysbiosis, nutrient malabsorption, potentially higher susceptibility to infection, and increased risk of colorectal cancer. However, our understanding of the mechanisms by which CHD results in intestinal damage remains incomplete. Here, we investigated the impact of chronic drinking on transcriptional and functional responses of lamina propria leukocytes (LPLs) isolated from the 4 major gut sections. Although no significant differences were detected between LPLs isolated from the ethanol and control groups at resting state within each major gut section, our analysis uncovered key regional differences in composition and function of LPLs independent of alcohol consumption. However, in response to phorbol myristate acetate and ionomycin, duodenal LPLs from ethanol-drinking animals generated a dampened response, whereas jejunal and ileal LPLs from ethanol-drinking animals produced a heightened response. Transcriptional responses following stimulation were pronounced in ileal and duodenal LPLs from the ethanol-drinking group but less evident in jejunal and colonic LPLs compared with controls, suggesting a more significant impact of alcohol on these gut regions. The altered intestinal LPL function detected in our study reveals remarkable region specificity and novel insight into potential mechanisms of intestinal injury associated with CHD.—Barr, T., Lewis, S. A., Sureshchandra, S., Doratt, B., Grant, K. A., Messaoudi, I. Chronic ethanol consumption alters lamina propria leukocyte response to stimulation in a region-dependent manner. FASEB J. 33, 7767–7777 (2019). www.fasebj.org.
KW - alcohol and immunity
KW - gastrointestinal tract
KW - mucosal immunology
KW - nonhuman primate
UR - http://www.scopus.com/inward/record.url?scp=85067267354&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85067267354&partnerID=8YFLogxK
U2 - 10.1096/fj.201802780R
DO - 10.1096/fj.201802780R
M3 - Article
C2 - 30897342
AN - SCOPUS:85067267354
SN - 0892-6638
VL - 33
SP - 7767
EP - 7777
JO - FASEB Journal
JF - FASEB Journal
IS - 6
ER -