PMID- 22144489 OWN - NLM STAT- MEDLINE DCOM- 20120327 LR - 20211021 IS - 1098-5522 (Electronic) IS - 0019-9567 (Print) IS - 0019-9567 (Linking) VI - 80 IP - 2 DP - 2012 Feb TI - Distinct compartmentalization of NF-kappaB activity in crypt and crypt-denuded lamina propria precedes and accompanies hyperplasia and/or colitis following bacterial infection. PG - 753-67 LID - 10.1128/IAI.06101-11 [doi] AB - Citrobacter rodentium induces transmissible murine colonic hyperplasia (TMCH) and variable degrees of inflammation and necrosis depending upon the genetic background. Utilizing C. rodentium-induced TMCH in C3H/HeNHsd inbred mice, we observed significant crypt hyperplasia on days 3 and 7 preceding active colitis. NF-kappaB activity in the crypt-denuded lamina propria (CLP) increased within 24 h postinfection, followed by its activation in the crypts at day 3, which peaked by day 7. Increases in interleukin-alpha1 (IL-1alpha), IL-12(p40), and macrophage inflammatory protein 1alpha (MIP-1alpha) paralleled NF-kappaB activation, while increases in IL-1alpha/beta, IL-6/IL-12(p40)/granulocyte colony-stimulating factor (G-CSF)/keratinocyte-derived chemokine (KC)/monocyte chemotactic protein 1 (MCP-1), and MIP-1alpha followed NF-kappaB activation leading to significant recruitment of neutrophils to the colonic mucosa and increased colonic myeloperoxidase (MPO) activity. Phosphorylation of the crypt cellular and nuclear p65 subunit at serines 276 and 536 led to functional NF-kappaB activation that facilitated expression of its downstream target, CXCL-1/KC, during TMCH. Distinct compartmentalization of phosphorylated extracellular signal-regulated kinase 1 and 2 ([ERK1/2] Thr(180)/Tyr(182)) and p38 (Thr(202)/Tyr(204)) in the CLP preceded increases in the crypts. Inhibition of ERK1/2 and p38 suppressed NF-kappaB activity in both crypts and the CLP. Dietary administration of 6% pectin or 4% curcumin in C. rodentium-infected mice also inhibited NF-kappaB activity and blocked CD3, F4/80, IL-1alpha/beta, G-CSF/MCP-1/KC, and MPO activity in the CLP while not affecting NF-kappaB activity in the crypts. Thus, distinct compartmentalization of NF-kappaB activity in the crypts and the CLP regulates crypt hyperplasia and/or colitis, and dietary intervention may be a novel strategy to modulate NF-kappaB-dependent protective immunity to facilitate crypt regeneration following C. rodentium-induced pathogenesis. FAU - Chandrakesan, Parthasarathy AU - Chandrakesan P AD - Department of Internal Medicine, Division of Digestive Diseases and Nutrition, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA. FAU - Ahmed, Ishfaq AU - Ahmed I FAU - Chinthalapally, Anisha AU - Chinthalapally A FAU - Singh, Pomila AU - Singh P FAU - Awasthi, Shanjana AU - Awasthi S FAU - Anant, Shrikant AU - Anant S FAU - Umar, Shahid AU - Umar S LA - eng GR - R01 CA097959/CA/NCI NIH HHS/United States GR - R01 CA109269/CA/NCI NIH HHS/United States GR - R01 CA131413/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20111205 PL - United States TA - Infect Immun JT - Infection and immunity JID - 0246127 RN - 0 (Cytokines) RN - 0 (NF-kappa B) RN - EC 1.11.1.7 (Peroxidase) SB - IM MH - Animals MH - Cells, Cultured MH - Citrobacter rodentium MH - Colitis/*etiology/*pathology MH - Cytokines/genetics/metabolism MH - Diet MH - Enterobacteriaceae Infections/microbiology/*pathology MH - Female MH - Gene Expression Regulation MH - Hyperplasia/*pathology MH - Intestinal Mucosa/microbiology/pathology MH - Male MH - Mice MH - Mice, Inbred C3H MH - Mucous Membrane/microbiology/*pathology MH - NF-kappa B/genetics/*metabolism MH - Peroxidase/metabolism PMC - PMC3264290 EDAT- 2011/12/07 06:00 MHDA- 2012/03/28 06:00 PMCR- 2012/08/01 CRDT- 2011/12/07 06:00 PHST- 2011/12/07 06:00 [entrez] PHST- 2011/12/07 06:00 [pubmed] PHST- 2012/03/28 06:00 [medline] PHST- 2012/08/01 00:00 [pmc-release] AID - IAI.06101-11 [pii] AID - 6101-11 [pii] AID - 10.1128/IAI.06101-11 [doi] PST - ppublish SO - Infect Immun. 2012 Feb;80(2):753-67. doi: 10.1128/IAI.06101-11. Epub 2011 Dec 5.