中华临床医师杂志(电子版)
中華臨床醫師雜誌(電子版)
중화림상의사잡지(전자판)
CHINESE JOURNAL OF CLINICIANS(ELECTRONIC VERSION)
2015年
14期
2718-2721
,共4页
细胞低氧%谷氨酰胺连接酶%视网膜%Müller细胞%重组人促红细胞生成素%氯化钴
細胞低氧%穀氨酰胺連接酶%視網膜%Müller細胞%重組人促紅細胞生成素%氯化鈷
세포저양%곡안선알련접매%시망막%Müller세포%중조인촉홍세포생성소%록화고
Cell hypoxia%Glutamate-ammonia ligase%Retina%Müller cell%Recombinant human erythropoietin%Cobalt chloride
目的:探讨促红细胞生成素对大鼠视网膜Müller细胞低氧损伤的保护作用。方法传代培养大鼠视网膜Müller细胞,分为N组(正常对照)、C50、C100、C150、C200、C300组(氯化钴浓度50,100,150,200,300μmol/L),MTT检测不同浓度氯化钴对Müller细胞活力的影响,确定制作低氧损伤的氯化钴浓度。然后再分组为N组(正常对照),C组(200μmol/L氯化钴),E1C组(1×104 IU/L rhEPO+200μmol/L氯化钴),E2C组(2×104 IU/L rhEPO+200μmol/L氯化钴),E4C组(4×104 IU/LrhEPO+200μmol/L氯化钴),MTT比色法比较五组视网膜Müller细胞活力的改变。Western blot检测各组细胞谷氨酰胺合成酶蛋白表达的情况。结果氯化钴浓度低于200μmol/L时,细胞活力不受氯化钴浓度的影响。从200μmol/L开始,细胞活力随氯化钴浓度增高而下降。E1C、E2C、E4C组细胞活力均高于C组,E4C组高于E2C组和E1C组,C组低于N组。Western blot检测谷氨酰胺合成酶表达结果显示,C组低于N组,EPO干预各组蛋白表达均高于C组,并随EPO浓度增高表达增高,但均低于N组。结论 EPO对视网膜Müller细胞低氧损伤有保护作用。
目的:探討促紅細胞生成素對大鼠視網膜Müller細胞低氧損傷的保護作用。方法傳代培養大鼠視網膜Müller細胞,分為N組(正常對照)、C50、C100、C150、C200、C300組(氯化鈷濃度50,100,150,200,300μmol/L),MTT檢測不同濃度氯化鈷對Müller細胞活力的影響,確定製作低氧損傷的氯化鈷濃度。然後再分組為N組(正常對照),C組(200μmol/L氯化鈷),E1C組(1×104 IU/L rhEPO+200μmol/L氯化鈷),E2C組(2×104 IU/L rhEPO+200μmol/L氯化鈷),E4C組(4×104 IU/LrhEPO+200μmol/L氯化鈷),MTT比色法比較五組視網膜Müller細胞活力的改變。Western blot檢測各組細胞穀氨酰胺閤成酶蛋白錶達的情況。結果氯化鈷濃度低于200μmol/L時,細胞活力不受氯化鈷濃度的影響。從200μmol/L開始,細胞活力隨氯化鈷濃度增高而下降。E1C、E2C、E4C組細胞活力均高于C組,E4C組高于E2C組和E1C組,C組低于N組。Western blot檢測穀氨酰胺閤成酶錶達結果顯示,C組低于N組,EPO榦預各組蛋白錶達均高于C組,併隨EPO濃度增高錶達增高,但均低于N組。結論 EPO對視網膜Müller細胞低氧損傷有保護作用。
목적:탐토촉홍세포생성소대대서시망막Müller세포저양손상적보호작용。방법전대배양대서시망막Müller세포,분위N조(정상대조)、C50、C100、C150、C200、C300조(록화고농도50,100,150,200,300μmol/L),MTT검측불동농도록화고대Müller세포활력적영향,학정제작저양손상적록화고농도。연후재분조위N조(정상대조),C조(200μmol/L록화고),E1C조(1×104 IU/L rhEPO+200μmol/L록화고),E2C조(2×104 IU/L rhEPO+200μmol/L록화고),E4C조(4×104 IU/LrhEPO+200μmol/L록화고),MTT비색법비교오조시망막Müller세포활력적개변。Western blot검측각조세포곡안선알합성매단백표체적정황。결과록화고농도저우200μmol/L시,세포활력불수록화고농도적영향。종200μmol/L개시,세포활력수록화고농도증고이하강。E1C、E2C、E4C조세포활력균고우C조,E4C조고우E2C조화E1C조,C조저우N조。Western blot검측곡안선알합성매표체결과현시,C조저우N조,EPO간예각조단백표체균고우C조,병수EPO농도증고표체증고,단균저우N조。결론 EPO대시망막Müller세포저양손상유보호작용。
Objective To investigate the protective effect of erythropoietin (EPO) on cultured retinal Müller cells injured by hypoxia. Methods Neonatal rats’ retinal Müller cells of serial subcultivation were divided into N (normal control group) and C50, C100, C150, C200, C300 groups according to the different concentration of cobalt chloride (50, 100, 150, 200, 300 μmol/L). MTT assay was applied to detect cell viability of every group. Then cultured cells were divided into N (normal control) group, C (200 μmol/L cobalt chloride) group, E1C (1×104 IU/L rhEPO+200 μmol/L cobalt chloride) group, E2C (2×104 IU/L rhEPO+200 μmol/L cobalt chloride)group, E4C (4×104 IU/L rhEPO+200 μmol/L cobalt chloride). MTT assay was applied to detect cells viability in five groups. The expression of glutamine synthetase was detected with Western blot method. Results MTT assay indicated that there was no change of cell viability when the concentrations of cobalt chloride were lower than 200 μmol/L, then, the cell viability decreased along with the concentration of cobalt chloride increased. Cell viability of E1C, E2C and E4C group was higher than that of C group, while, E4C group was higher than those of E2C and E1C group. The expressions of glutamine synthetase in E4C, E2C and E1C group were higher than that in C group which was low compared with N group. Conclusion EPO pretreatment could effectively protect the cultured retinal Müller cells from injuries induced by hypoxia.