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陳彥丞

最後更新日期 : 2015-09-18

出版年:

 

研究生:

陳彥丞

研究生(英文姓名):

Chen Yen-Cheng

論文名稱:

以免疫組織染色法研究在 NZB/W F1 小鼠的細胞激素製造細胞

英文論文名稱:

Immunohistochemical study on the cytokine-producing cells in NZB/W F1 mice

指導教授:

楊倍昌 ; 余俊強

指導教授(英文姓名):

Yang, Bei-Chung ; Yu, Chun-Keung

學位類別:

碩士

校院名稱:

國立成功大學 

系所名稱:

微生物暨免疫學研究所

學號:

S46851013

學年度:

87

語文別:

中文

論文頁數:

0

關鍵詞:

系統性紅斑性狼瘡 ; 細胞激素 ; 雙氫上皮雄脂烯二酮 ; 免疫組織染色 ; IL-10 ; TNF-α ; IFN-γ ; NZB/W F1 小鼠

英文關鍵詞:

systemic lupus erythematosus ; cytokines ;
DHEA ; Immunohistochemical staining ;
IL-10 ; TNF-α ; IFN-γ ; NZB/W F1 mice

被引用次數:

0

[ 摘要 ]

系統性紅斑性狼瘡 (SLE) 是一種多器官遭受破壞的自體免疫性疾病,除了免疫系統的調控失常外,並且伴隨著多發性的自體免疫抗體產生。DHEA 是一種腎上腺皮質所產生的類固醇,具有少許雄性素的活性。有文獻報告 DHEA 可以改善 NZB/W F1 小鼠在腎炎上的症狀,改變細胞激素的分泌,並延長生命。而細胞激素在紅斑性狼瘡的致病過程中,具有重要的角色。在本實驗中,我們以 DHEA 餵食 NZB/W F1 小鼠後,觀察在血液中、腎臟和脾臟內表現細胞激素的細胞。小鼠餵食 DHEA 後,在周邊血液單核細胞所表現的細胞激素 mRNA 會受到改變,鼠齡 8 個月大時,DHEA 組的 IL-6IL-10M IFN-γ較控制組有明顯的降低。在鼠齡 3個月至 6個月大期間,細胞激素受到 DHEA 的影響不大。在鼠齡 10 個月,腎臟的蘇木紫伊紅染色結果,可在腎小動脈發現免疫細胞的浸潤情況和腎絲球體萎縮的現象。若以冷凍切片,免疫組織染色觀察組織表現的細胞激素 IL-10TNF-α IFN-γDHEA 組在腎臟的浸潤細胞表現 IL-10TNF-α 數目減少,IFN-γ出現的時間提前。在脾臟的染色結果,鼠齡 81012 個月大時,控制組都有表現 IL-10TNF-α IFN-γDHEA 組表現這三種的細胞激素數目較少。用抗 TCR β chain IgG 抗體區分 T 細胞和 B 細胞,後再用染色法觀察這些細胞所表現的三種細胞激素。在腎臟內 IgG+ B 細胞會表現 IL-10 TNF-α,部份 T 細胞會產生 TNF-α。在脾臟的一些 T 細胞會表現 IL-10TNF-α IFN-γIgG+ B 細胞會表現 IL-10。另外,以時間來看,在脾臟表現細胞激素的細胞出現時間較在腎臟的細胞早。在血液中的細胞,IgM+ B 細胞會產生IL-10T 細胞產生 IFN-γTNF-α 可能由單核球所產生。綜合以上的結果,在 NZB/W F1 小鼠的脾臟和腎臟產生 IL-10 的細胞以 B 細胞為多數,產生 TNF-α IFN-γ的細胞,有一部份是由 T 細胞產生而來。DHEA 可提早浸潤細胞製造 IFN-γ出現的時間,能降低腎臟和脾臟表現 IL-10 TNF-α 的細胞數目。而這些細胞對 SLE 的致病原因應佔有重要的角色。

[ 英文摘要 ]

Systemic lupus erythematosus (SLE) is a multisystem disease characterized by disturbances in the immune system associated with the production of autoantibodies to self-antigens. NZB/W F1 mice, which spontaneously develop a lupus-like syndrome characterized by an increased level of autoantibodies in old mice, is a mode for SLE. Dehydroepiandrosterone (DHEA), an abundant adrenal steroid with limited intrinsic androgenic activity, was shown to ameliorate nephritis in NZB/W F1 mice. Cytokines might play an important roles in the development of SLE. IL-10 and IL-6 are produced at high levels of patients with SLE. In this study, we investigated cytokine-producing cells in kidney, spleen and blood lymphocytes of NZB/W F1 mice after DHEA treatment.
Infiltrating cells in the renal arteriole and around sites showing glomerulus atrophy were observed by H&E staining in kidney at 10 month-old. Some of these cells expressed IL-10, TNF-a or IFN-g. DHEA could decrease the expression number of IL-10 and TNF-a in infiltrating cells, early expression of IFN-g in kidney as detected by immunohistochemical staining. IL-10-, TNF-a- and IFN-g- producing cells in spleen were found in control mice at 8, 10, 12 month-old. These cytokines expressing cells in mice received DHEA are lower than that of control group. Double staining experiments revealed some of IgG+ B cells produced IL-10 and TNF-a, part of TCR+ T cells produced TNF-a in kidney. Some TCR+ T cells produced IL-10, TNF-a and IFN-g. Some IgG+ B cells produced IL-10. In view of time, cytokine producing cells appeared in spleen earlier than kidney. In peripheral blood, IgM+ B cells produce IL-10 and T cells produce IFN-g.
In conclusion, IL-10 producing cells mostly were B cells in kidney and spleen of NZB/W F1 mice. Some of TNF-a and IFN-g producing cells were T cells. DHEA could promote the expression of IFN-g in kidney and decrease the number of IL-10 - and TNF-a - producing cells in kidney and spleen. The emergence of cytokine producing cells in kidney and spleen may play a role in the pathogenesis of SLE.

 

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