透過您的圖書館登入
IP:13.58.39.23
  • 學位論文

全身性紅斑狼瘡病人多形核嗜中性白血球葡萄糖傳送,傳送分子的表現及血清因子的影響

The Study on the Glucose Transport, Glucose Transporter Expression and the Affection of Serum Factor on Polymorphonuclear Neutrophils of Patients with Systemic Lupus Erythematosus

指導教授 : 余家利

摘要


研究目的: 研究全身性紅斑狼瘡 (systemic lupus erythematosus, SLE) 病人的多形核嗜中性白血球 (polymorphonuclear neutrophil, PMN)葡萄傳送及葡萄糖傳送分子 (glucose transporter, GLUT)1,3,6之表現及血清因子的影響。 研究方法: 自2002年7月到2004年5月間,共收集與分離SLE病人 (29人,平均年齡37歲,女男比為24:5)與正常人 (共12人,平均年齡32歲,女男比為4:8)的PMN與血清。SLE病人均符合美國風濕病學院1997年修正之分類標準,並且須排除感染。我們分別檢測兩組 (1) PMN表面GLUT1,GLUT3,GLUT6的蛋白表現。 (2) 利用內毒素(LPS),介白素8 (IL-8)及腫瘤壞死因子 (TNF-α) 處理PMN 24小時之後,檢測細胞表面GLUT1,GLUT3及GLUT6的表現。 (3)比較SLE與正常人PMN正常培養及LPS刺激24小時後上清液中的乳酸濃度。 (4) 比較兩組PMN自發性及LPS刺激24小時後葡萄糖螢光類同物6-NBDG的攝取。(5)比較正常人PMN以正常人或SLE病人血清處理後,葡萄糖螢光類同物的攝取。 結果: SLE病人PMN之GLUT3的表現較正常人少 (47.4+8.6% vs. 77.4+6.7%, p<0.05),經24小時一般培養 (31.5+11.5% vs. 58.5+5.5%)或IL-8 (12+4% vs. 51.5+2.5%)、LPS (8+3% vs. 49+8%)刺激後,SLE-PMN之GLUT3則有更為下降的傾向。SLE病人PMN的24小時培養上清液乳酸濃度相較於正常PMN,不論是一般培養 (27.5+4.7 mg/ml vs. 23.7+5.8 mg/ml)或LPS刺激後 (28.9+4.3 mg/ml vs. 22.9+10.8 mg/ml)皆有較高傾向。SLE-PMN 24小時葡萄糖螢光類同物6-NBDG的攝取則與正常人無顯著差異,但是SLE-PMN低葡萄糖螢光類同物攝取的細胞亞群的百分比相較於正常人,不論是在一般培養 (13.8+4.9% vs. 10.4+3.4%)或LPS刺激下 (17.6+5.2% vs. 11.8+3%),低葡萄糖攝取細胞亞群都有增加的情況。而正常人的PMN在經過SLE病人血清的處理後,也會出現低攝取亞群增加的情況 (12.3+1.1% vs. 9.5+0.6%, p<0.05)。 研究結論: GLUT3的表現減少和葡萄糖的攝取的低下可能影響SLE-PMN的生物能量利用而造成自發性及刺激活化的細胞反應低下。SLE血清中會增加低葡萄糖攝取亞群的因子則有待更進一步的探討。

並列摘要


Objective: The study intended to examine glucose transport and the expression of glucose transporter (GLUT) 1, 3, 6 on normal and systemic lupus erythematosus (SLE) polymorphonuclear neutrophil (PMN) and SLE serum effects on normal PMN that has not reported in the literature. Method: PMN and serum were obtained from normal volunteers (n=12, mean age 32, F:M = 4:8) and SLE patients (n=29, mean age 37, F:M =24:5). Patients should fulfill The American College of Rheumatology 1997 revised classification criteria for SLE. Infection should be ruled out. Experimental designs included (1) GLUT1, GLUT3, GLUT6 expression on normal and SLE PMN. (2) The effect of LPS (100 ng/ml),IL-8 (25 ng/ml) and TNF-

參考文獻


1. Ahmed N, Kansara M, Berridge MV. Acute regulation of glucose transport in a monocyte-macrophage cell line: Glut-3 affinity for glucose is enhanced during the respiratory burst. Biochem J 1997; 327:369-75.
2. Aller CB, Ehmann S, Gilman-Sachs A, Snyer AK. Flow cytometric analysis of glucose transport by rat brain cells. Cytometry 1997; 27:262-8.
3. Babior BM. The respiratory burst of phagocytes. J Clin Invest 1984; 73:599-601.
4. Babior BM, Kipnes RS, Curnutte JT. Biological defense mechanisms. The production by leukocytes of superoxide, a potential bacteriocidal agent. J Clin Invest 1973; 52:741-4.
5. Bashan N, Burdett E, Hundal HS, Klip A. Regulation of glucose transport and GLUT1 glucose transporter expression by O2 in muscle cells in culture. Am J Physiol 1992; 262:C682-90.

延伸閱讀