PMID- 18952234 OWN - NLM STAT- MEDLINE DCOM- 20090708 LR - 20210103 IS - 1095-8673 (Electronic) IS - 0022-4804 (Linking) VI - 154 IP - 1 DP - 2009 Jun 1 TI - A comparison of monocyte counts and ex vivo and in vitro monocyte cytokine production after major surgical trauma. PG - 91-8 LID - 10.1016/j.jss.2008.06.003 [doi] AB - BACKGROUND: Impaired function of cluster of differentiation 14-positive (CD14+) monocytes (MOs) after major surgical trauma is believed to predispose to infectious complications. Postoperative decreases in human leukocyte antigen (HLA)-DR expression, tumor necrosis factor-alpha (TNF-alpha) production and interleukin (IL)-12 synthesis have been reported. There are no studies comparing absolute MO counts and MO cytokine synthesis in peripheral blood and stimulated cultures. METHODS: The study group included 10 low-risk patients undergoing elective cardiac surgery with extracorporeal circulation. Preoperatively (d0) and on the first (d1) and third (d3) postoperative d, we analyzed leukocyte counts, CD14+ MO absolute counts, HLA-DR expression, and stimulated IL-12 and TNF-alpha synthesis using flow cytometry. In addition, IL-12 and TNF-alpha release in stimulated whole blood cultures was assayed. RESULTS: Whereas the absolute numbers of leukocytes and CD14+ MOs were significantly elevated, HLA-DR expression was suppressed postoperatively. The proportion of TNF-alpha- and IL-12-producing MOs was reduced after surgery. This, however, led to a significant postoperative decrease only in the absolute numbers of peripheral blood IL-12+ MOs. IL-12 secretion was postoperatively reduced in whole blood cultures. The IL-12-synthesizing capacity of IL-12+ MOs was significantly reduced only on d1. CONCLUSIONS: The immediate postoperative period is associated with an increase in the absolute MO numbers and an impairment of MO function, which is reflected in a reduced capacity to synthesize IL-12 and TNF-alpha and a decreased ability to express HLA-DR and present antigens. Whereas the cytokine-producing capacity returns to normal levels on d3, the suppression of HLA-DR expression persists. FAU - Franke, Axel AU - Franke A AD - Department of Trauma and Reconstructive Surgery, German Armed Forces Central Hospital, Koblenz, Germany. FAU - Lante, Wolfgang AU - Lante W FAU - Kollig, Erwin AU - Kollig E FAU - Markewitz, Andreas AU - Markewitz A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080711 PL - United States TA - J Surg Res JT - The Journal of surgical research JID - 0376340 RN - 0 (Cytokines) RN - 0 (HLA-DR Antigens) RN - 0 (Hemoglobins) RN - 0 (Lipopolysaccharide Receptors) RN - 0 (Lipopolysaccharides) RN - 0 (Tumor Necrosis Factor-alpha) RN - 187348-17-0 (Interleukin-12) SB - IM MH - Aged MH - *Cardiopulmonary Bypass MH - Cell Culture Techniques MH - Cytokines/*biosynthesis MH - Elective Surgical Procedures MH - Female MH - Flow Cytometry MH - HLA-DR Antigens/analysis MH - Heart Valve Prosthesis Implantation MH - Hemoglobins/metabolism MH - Humans MH - Interleukin-12/biosynthesis MH - *Leukocyte Count MH - Lipopolysaccharide Receptors/blood MH - Lipopolysaccharides/pharmacology MH - Male MH - Monocytes/cytology/drug effects/*physiology MH - Postoperative Period MH - Tumor Necrosis Factor-alpha/blood EDAT- 2008/10/28 09:00 MHDA- 2009/07/09 09:00 CRDT- 2008/10/28 09:00 PHST- 2008/02/26 00:00 [received] PHST- 2008/04/30 00:00 [revised] PHST- 2008/06/03 00:00 [accepted] PHST- 2008/10/28 09:00 [pubmed] PHST- 2009/07/09 09:00 [medline] PHST- 2008/10/28 09:00 [entrez] AID - S0022-4804(08)00397-1 [pii] AID - 10.1016/j.jss.2008.06.003 [doi] PST - ppublish SO - J Surg Res. 2009 Jun 1;154(1):91-8. doi: 10.1016/j.jss.2008.06.003. Epub 2008 Jul 11.