PMID- 23405224 OWN - NLM STAT- MEDLINE DCOM- 20130820 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 8 IP - 2 DP - 2013 TI - Increased abscess formation and defective chemokine regulation in CREB transgenic mice. PG - e55866 LID - 10.1371/journal.pone.0055866 [doi] LID - e55866 AB - Cyclic AMP-response element-binding protein (CREB) is a transcription factor implicated in growth factor-dependent cell proliferation and survival, glucose homeostasis, spermatogenesis, circadian rhythms, and synaptic plasticity associated with memory. To study the phenotype of CREB overexpression in vivo, we generated CREB transgenic (TG) mice in which a myeloid specific hMRP8 promoter drives CREB expression. CREB TG mice developed spontaneous skin abscesses more frequently than wild type (WT) mice. To understand the role of CREB in myeloid function and innate immunity, chemokine expression in bone marrow derived macrophages (BMDMs) from CREB TG mice were compared with BMDMs from WT mice. Our results demonstrated decreased Keratinocyte-derived cytokine (KC) in CREB TG BMDMs but not TNFalpha protein production in response to lipid A (LPA). In addition, mRNA expression of KC and IL-1beta (Interleukin)-1beta was decreased in CREB TG BMDMs; however, there was no difference in the mRNA expression of TNFalpha, MCP-1, IL-6 and IL-12p40. The mRNA expression of IL-1RA and IL-10 was decreased in response to LPA. Nuclear factor kappa B (NFkappaB) expression and a subset of its target genes were upregulated in CREB TG mouse BMDMs. Although neutrophil migration was the same in both CREB TG and WT mice, Nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity was significantly increased in neutrophils from CREB TG mice. Taken together, CREB overexpression in myeloid cells results in increased abscess formation in vivo and aberrant cytokine and chemokine response, and neutrophil function in vitro. FAU - Wen, Andy Y AU - Wen AY AD - Division of Critical Care, Department of Pediatrics, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, United States of America. FAU - Landaw, Elliot M AU - Landaw EM FAU - Ochoa, Rachel AU - Ochoa R FAU - Cho, Michelle AU - Cho M FAU - Chao, Alex AU - Chao A FAU - Lawson, Gregory AU - Lawson G FAU - Sakamoto, Kathleen M AU - Sakamoto KM LA - eng GR - R01 HL075826/HL/NHLBI NIH HHS/United States GR - R41 HL078526/HL/NHLBI NIH HHS/United States GR - T32 HD007512/HD/NICHD NIH HHS/United States GR - HL78526/HL/NHLBI NIH HHS/United States GR - R01 HL097561/HL/NHLBI NIH HHS/United States GR - HL097561/HL/NHLBI NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20130206 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Chemokines) RN - 0 (Creb1 protein, mouse) RN - 0 (Cyclic AMP Response Element-Binding Protein) RN - 0 (Cytokines) SB - IM MH - Abscess/diagnosis/*etiology MH - Animals MH - Cell Proliferation MH - Cell Survival MH - Chemokines/genetics/*metabolism MH - Cyclic AMP Response Element-Binding Protein/*physiology MH - Cytokines/genetics/*metabolism MH - Female MH - Keratinocytes/metabolism/pathology MH - Macrophages/metabolism/pathology MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Transgenic MH - Myeloid Cells/metabolism/*pathology MH - Neutrophils/metabolism/*pathology MH - Transcriptional Activation PMC - PMC3566130 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2013/02/14 06:00 MHDA- 2013/08/21 06:00 PMCR- 2013/02/06 CRDT- 2013/02/14 06:00 PHST- 2012/09/03 00:00 [received] PHST- 2013/01/03 00:00 [accepted] PHST- 2013/02/14 06:00 [entrez] PHST- 2013/02/14 06:00 [pubmed] PHST- 2013/08/21 06:00 [medline] PHST- 2013/02/06 00:00 [pmc-release] AID - PONE-D-12-26481 [pii] AID - 10.1371/journal.pone.0055866 [doi] PST - ppublish SO - PLoS One. 2013;8(2):e55866. doi: 10.1371/journal.pone.0055866. Epub 2013 Feb 6.