The Influence of Surgical Stress on T Cells
| Autor: | Ikuto Yoshiya, Gaku Sakaue, Nobuyuki Taenaka, Hiroshi Kiyono, Masahiro Sugimoto, Motomu Shimaoka, Kikumi Hosotsubo |
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| Rok vydání: | 1998 |
| Předmět: |
Antigens
Differentiation T-Lymphocyte Male Pathology medicine.medical_specialty Surgical stress T cell CD4-CD8 Ratio Lymphocyte Activation Peripheral blood mononuclear cell Andrology Leukocyte Count Immune system Antigen Antigens CD Stress Physiological Postoperative infection Humans Cytotoxic T cell Medicine Lectins C-Type In patient Aged business.industry T lymphocyte Middle Aged Lymphocyte Subsets medicine.anatomical_structure Anesthesiology and Pain Medicine Surgical Procedures Operative Immunology Lymphocyte activation Female business Early phase CD8 |
| Zdroj: | Anesthesia & Analgesia. 87:1431-1435 |
| ISSN: | 0003-2999 |
| DOI: | 10.1213/00000539-199812000-00043 |
| Popis: | UNLABELLED For the control of postoperative infection, it may be important to understand the possible influences of surgical stress on the host immune system. To this end, we examined how the early phase of lymphocyte activation was affected in patients after major surgery (eight patients with esophageal carcinoma and six undergoing cardiac surgery) using a flow cytometric assay based on expression of the early activation antigen, CD69. Freshly isolated T cell in preoperative and postoperative samples did not express CD69. When peripheral blood mononuclear cells were stimulated in vitro, the expression of CD69 was greatly enhanced in both CD4 and CD8 T cells, compared with the preoperative samples. The proportion of de novo CD69-expressing cells in the CD4 subset was approximately 3 times (Postoperative Day 1) and 4 times (Postoperative Days 2, 3, 5, and 7) greater than those preoperatively, whereas the proportion of de novo CD69-expressing cells in the CD8 subset was approximately 1.5 times (Postoperative Days 2 and 5) and 2 times (Postoperative Day 3) greater than those preoperatively. The proportion of CD69+ cells was significantly greater in the CD4+ subset than in the CD8+ subset during the postoperative period. IMPLICATIONS Our results show that major surgical stress enhances the early phase of lymphocyte activation. The augmentation of activation was greater in CD4 (helper) T cells than in CD8 (cytotoxic) T cells. |
| Databáze: | OpenAIRE |
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