| Immunologic Changes of Peripheral Blood Lymphocytes in Kawasaki Disease after Intravenous Gamma Globulin Therapy |
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Jung Yeon Shim, Kyung Mo Kim, Young Hwue Kim, Soo-Jong Hong |
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Department of Pediatrics, Asan Medical Center, University of Ulsan, Seoul, Korea |
| 가와사끼병에서 대량 감마글로불린 정주 요법에 따른 말초 혈액 림프구의 면역학적 변화 |
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심정연, 김경모, 김영휘, 홍수종 |
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울산대학교 의과대학 소아과학교실 |
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| Abstract |
Purpose
: Kawasaki disease(KD) is multi-systemic vasculitis and coronary artery
abnormalities can develop up to 30 percent in untreated patients. Several observations suggest that immune activation and the secretion of cytokines from immune effector cells contribute to the pathogenesis of this disease. Though high dose intravenous gamma globulin(IVGG,>1 gm/kg) is effective in reducing the prevalence of coronary artery aneurysms in KD, the mechanism of IVGG is not yet well understood. To investigate the changes ofimmune effect or cells, their activation, and risk factors for coronary artery aneurysms, we measured the peripheral blood lymphocyte subsets and their activation markers in KD patients with coronary artery lesions and compared them with those of patients without coronary artery lesions after IVGG treatment.
Methods
: The study group consisted of 11 patients with acute phase of KD including 4 patients with coronary artery lesions by 2D echocardiography, and 8 age-matched healthy controls. The peripheral blood mononuclear cells were collected by ficoll-hypaque, stained with monoclonal antibodies, and evaluated by flow cytometry. We
compared the profile of peripheral blood lymphocyte subsets before IVGG(2 gm/kg,
single dose) treatment, and at 5, 14 and 60 days after IVGG treatment.
Results
: 1) Total T lymphocytes, CD4+ T lymphocytes, CD8+ T lymphocytes, and CD23+ B
lymphocytes were decreased, but interleukin 2 receptor positive(IL-2R+) T lymphocytes
and IgM+ B lymphocytes were increased in acute phase of KD when compared with
normal healthy control.
2) Total T lymphocytes, CD8+ T lymphocytes, CD23+ T lymphocytes were increased
and NK cells were decreased after IVGG treatment.
3) Total T lymphocytes and CD8+T lymphocytes were significantly increased at 5 days and 14 days, respectively after IVGG treatment, and IgM+ B lymphocytes and IL-2R+ T lymphocytes were significantly decreased at 14 days and 60 days, respectively in the patients with coronary artery lesions when compared with those without coronary artery lesions.
Conclusion
: Total T lymphocytes are decreased and T lymphocytes are activated
in acute phase of KD, especially in patients with coronary artery lesions and that
findings are recovered after IVGG treatment as those without lesions. |
| Key Words:
Kawasaki disease, Gamma globulin, T lymphocytes, B lymphocytes, Coronary artery lesion |
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