PMID- 15982613 OWN - NLM STAT- MEDLINE DCOM- 20060713 LR - 20171116 IS - 1053-2498 (Print) IS - 1053-2498 (Linking) VI - 24 IP - 7 DP - 2005 Jul TI - Intracellular monocyte cytokine production and CD 14 expression are up-regulated in severe vs mild chronic heart failure. PG - 854-9 AB - BACKGROUND: The role of circulating monocytes in the process of low-grade inflammation, characteristic of chronic heart failure (CHF), has recently been questioned. Lipopolysaccharide (LPS) desensitization has been proposed to mediate reduced monocyte cytokine elaboration in patients with severe CHF. METHODS: Intracellular monocyte production of interleukin-1 beta (IL-1 beta), interleukin-6 (IL-6) and tumor necrosis factor (TNF)-alpha, and monocyte CD 14 expression were measured flow-cytometrically without and after 8-hour LPS stimulation in 46 patients with CHF and in a healthy control group. RESULTS: Basal cytokine concentrations were similar for the control and the mild CHF groups (New York Heart Association [NYHA] Class I or II). After LPS stimulation, IL-6 (p=0.002) and TNF-alpha levels (p=0.001) were lower in the latter group, whereas IL-1 beta production was comparable. For the moderate-severe CHF patients, unstimulated IL-1 beta (p=0.04) was higher, whereas IL-6 (p=0.2) and TNF-alpha (p=0.1) levels were not different from the controls. Measurement of LPS-stimulated cytokine production showed no differences between the control group and patients with moderate-severe CHF (all p= 0.5). Upon comparing mild vs moderate-severe CHF patients, higher levels of unstimulated cytokine production (IL-1 beta, p=0.002; IL-6, p=0.01; TNF-alpha, p=0.003), stimulated IL-1 beta (p=0.002) and IL-6 (p=0.008) were found in the latter patients. CD 14 expression in the moderate-severe CHF group was higher than in the mild-CHF group (p = 0.03) and was strongly related to stimulated IL-1 beta (r=0.62, p<0.0001), IL-6 (r=0.56, p=0.0002) and TNF-alpha (r=0.41, p=0.006) production. CONCLUSIONS: CD 14 expression and monocyte cytokine production, both unstimulated and after LPS stimulation, are increased in moderate-severe CHF when compared with mild CHF. These data suggest that circulating monocytes, possibly via increased CD 14 expression, may play a significant role in the immunologic dysbalance observed in advanced CHF. FAU - Conraads, Viviane M AU - Conraads VM AD - Department of Cardiology, University Hospital Antwerp (UIA), Antwerp, Belgium. viviane.conrads@uza.be FAU - Bosmans, Johan M AU - Bosmans JM FAU - Schuerwegh, Annemie J AU - Schuerwegh AJ FAU - Goovaerts, Inge AU - Goovaerts I FAU - De Clerck, Luc S AU - De Clerck LS FAU - Stevens, Wim J AU - Stevens WJ FAU - Bridts, Chris H AU - Bridts CH FAU - Vrints, Christiaan J AU - Vrints CJ LA - eng PT - Journal Article PL - United States TA - J Heart Lung Transplant JT - The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation JID - 9102703 RN - 0 (Cytokines) RN - 0 (Interleukin-6) RN - 0 (Lipopolysaccharide Receptors) RN - 0 (Lipopolysaccharides) RN - 0 (Receptors, Tumor Necrosis Factor, Type I) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (Tumor Necrosis Factors) SB - IM MH - Cytokines/biosynthesis/*metabolism MH - Female MH - Heart Failure/blood/*metabolism MH - Humans MH - Interleukin-6/biosynthesis MH - Lipopolysaccharide Receptors/*biosynthesis MH - Lipopolysaccharides MH - Male MH - Middle Aged MH - Monocytes/*metabolism MH - Receptors, Tumor Necrosis Factor, Type I/metabolism MH - Tumor Necrosis Factor-alpha/metabolism MH - Tumor Necrosis Factors/metabolism EDAT- 2005/06/29 09:00 MHDA- 2006/07/14 09:00 CRDT- 2005/06/29 09:00 PHST- 2003/10/08 00:00 [received] PHST- 2004/03/23 00:00 [revised] PHST- 2004/04/12 00:00 [accepted] PHST- 2005/06/29 09:00 [pubmed] PHST- 2006/07/14 09:00 [medline] PHST- 2005/06/29 09:00 [entrez] AID - S1053-2498(04)00271-2 [pii] AID - 10.1016/j.healun.2004.04.017 [doi] PST - ppublish SO - J Heart Lung Transplant. 2005 Jul;24(7):854-9. doi: 10.1016/j.healun.2004.04.017.