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A Journal on Anesthesiology, Resuscitation, Analgesia and Intensive Care

Official Journal of the Italian Society of Anesthesiology, Analgesia, Resuscitation and Intensive Care
Indexed/Abstracted in: Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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Minerva Anestesiologica 2011 May;77(5):522-7

language: English

HLA-DR and B7-2 (CD86) monocyte expressions after major cancer surgery: profile in sepsis

Mokart D. 1, Textoris J. 2, Chow-Chine L. 1, Brun J.-P. 1, Sannini A. 1, Turrini O. 3, Blache J.-L. 1, Arnoulet C. 4, Sainty D. 4, Leone M. 2

1 Department of Anesthesia and Resuscitation, Paoli-Calmettes Institute, Marseille, France;
2 Department of Anesthesia and Resuscitation, Hôpital Nord, Assistance Publique-Hôpitaux de Marseille, Université de la Méditerranée, Marseille, France;
3 Departement of Surgery, Paoli-Calmettes Institute, Marseille, France;
4 Laboratory of Hematology, Paoli-Calmette Institute, Marseille, France


AIM: HLA-DR monocyte expression may be affected by major surgery. A potential mechanism for monocyte activation is the engagement of costimulatory receptors (B7-2 or CD-86). The aim of the present study was to determine the possible role of monocyte HLA-DR and B7-2 molecules in the occurrence of postoperative sepsis after major cancer surgery.
METHODS: This was an observational study in 25 consecutive patients undergoing major elective surgery. Flow cytometry measures were used to determine the expression of HLA-DR and its costimulatory receptors before (day 0) and after surgery (day 1 and day 2).
RESULTS: After surgery, the rate of monocytes expressing HLA-DR decreased significantly in all the patients. As compared with day 0, the rate of monocytes expressing B7-2 decreased in all the patients (P<0.03). In the septic group, it remained significantly decreased postoperatively. In the non-septic group, it reached baseline levels at day 2.
CONCLUSION: Results suggest a key role for costimulatory molecules in modulating inflammatory response in the context of subsequent postoperative sepsis after major cancer surgery. These molecules may be involved, in association with HLA-DR, in postoperative monocyte dysfunction.

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