中国组织工程研究
中國組織工程研究
중국조직공정연구
Journal of Clinical Rehabilitative Tissue Engineering Research
2015年
43期
6930-6934
,共5页
贺斌%陶海鹰%卫爱林%李孝海%陈任
賀斌%陶海鷹%衛愛林%李孝海%陳任
하빈%도해응%위애림%리효해%진임
生物材料%材料相容性%羧甲基壳聚糖%许旺细胞%环磷腺苷/蛋白激酶A信号通路%环磷腺苷反应元件结合蛋白%国家自然科学基金
生物材料%材料相容性%羧甲基殼聚糖%許旺細胞%環燐腺苷/蛋白激酶A信號通路%環燐腺苷反應元件結閤蛋白%國傢自然科學基金
생물재료%재료상용성%최갑기각취당%허왕세포%배린선감/단백격매A신호통로%배린선감반응원건결합단백%국가자연과학기금
背景:已有研究证实羧甲基壳聚糖对许旺细胞增殖、分泌具有促进作用,但其对许旺细胞内环磷腺苷介导蛋白激酶A信号通路的影响仍需要进一步研究。目的:观察羧甲基壳聚糖对大鼠许旺细胞内环磷腺苷/蛋白激酶A信号通路的影响。方法:取第2代新生大鼠许旺细胞,以1×109 L-1的细胞浓度接种于6孔板,分4组培养,空白对照组加入PBS,实验组分别加入50,100,200 mg/L的羧甲基壳聚糖溶液培养。培养24 h后,检测许旺细胞内环磷腺苷浓度、蛋白激酶A活性及环磷腺苷反应元件结合蛋白mRNA的表达。结果与结论:与空白对照组比较,羧甲基壳聚糖呈剂量依赖性提高许旺细胞内环磷腺苷浓度(P<0.05),呈剂量依赖性增强许旺细胞内蛋白激酶A活性(P<0.05),呈剂量依赖性提高许旺细胞内环磷腺苷反应元件结合蛋白mRNA的表达(P<0.05)。表明羧甲基壳聚糖可增加许旺细胞内环磷腺苷浓度、促进蛋白激酶A活性,从而激活环磷腺苷/蛋白激酶A信号通路。
揹景:已有研究證實羧甲基殼聚糖對許旺細胞增殖、分泌具有促進作用,但其對許旺細胞內環燐腺苷介導蛋白激酶A信號通路的影響仍需要進一步研究。目的:觀察羧甲基殼聚糖對大鼠許旺細胞內環燐腺苷/蛋白激酶A信號通路的影響。方法:取第2代新生大鼠許旺細胞,以1×109 L-1的細胞濃度接種于6孔闆,分4組培養,空白對照組加入PBS,實驗組分彆加入50,100,200 mg/L的羧甲基殼聚糖溶液培養。培養24 h後,檢測許旺細胞內環燐腺苷濃度、蛋白激酶A活性及環燐腺苷反應元件結閤蛋白mRNA的錶達。結果與結論:與空白對照組比較,羧甲基殼聚糖呈劑量依賴性提高許旺細胞內環燐腺苷濃度(P<0.05),呈劑量依賴性增彊許旺細胞內蛋白激酶A活性(P<0.05),呈劑量依賴性提高許旺細胞內環燐腺苷反應元件結閤蛋白mRNA的錶達(P<0.05)。錶明羧甲基殼聚糖可增加許旺細胞內環燐腺苷濃度、促進蛋白激酶A活性,從而激活環燐腺苷/蛋白激酶A信號通路。
배경:이유연구증실최갑기각취당대허왕세포증식、분비구유촉진작용,단기대허왕세포내배린선감개도단백격매A신호통로적영향잉수요진일보연구。목적:관찰최갑기각취당대대서허왕세포내배린선감/단백격매A신호통로적영향。방법:취제2대신생대서허왕세포,이1×109 L-1적세포농도접충우6공판,분4조배양,공백대조조가입PBS,실험조분별가입50,100,200 mg/L적최갑기각취당용액배양。배양24 h후,검측허왕세포내배린선감농도、단백격매A활성급배린선감반응원건결합단백mRNA적표체。결과여결론:여공백대조조비교,최갑기각취당정제량의뢰성제고허왕세포내배린선감농도(P<0.05),정제량의뢰성증강허왕세포내단백격매A활성(P<0.05),정제량의뢰성제고허왕세포내배린선감반응원건결합단백mRNA적표체(P<0.05)。표명최갑기각취당가증가허왕세포내배린선감농도、촉진단백격매A활성,종이격활배린선감/단백격매A신호통로。
BACKGROUND:It has been confirmed that carboxymethylated chitosan has an promoting effect on Schwann cel proliferation and secretion, but its impact on the cyclic adenosine monophosphate-mediated protein kinase A signaling pathway in schwann cel stil needs further study. OBJECTIVE:To investigate the effect of carboxymethylated chitosan on cyclic adenosine monophosphate/ protein kinase A signaling pathway in rat schwann cels. METHODS:The Schwann cels of the second generation neonatal rats were obtained and seeded in 6-wel plate at a concentration of 1×109/L. These Schwann cels were cultured and divided into four groups. The Schwann cels in the control group were cultured by adding PBS. The Schwann cels in the experimental groups were cultured by adding 50, 100 and 200 mg/L of carboxymethyl chitosan solution, respectively. After 24 hours, the concentration of cyclic adenosine monophosphate, protein kinase A activity and cyclic adenosine monophosphate response element binding protein mRNA expression were detected. RESULTS AND CONCLUSION:Compared with the control group, carboxymethyl chitosan increased cyclic adenosine monophosphate concentrations, the activity of protein kinase A and cyclic adenosine monophosphate response element binding protein mRNA expression within the Schwann cels in a dose-dependent manner (P < 0.05). These results demonstrate that carboxymethyl chitosan can increase the concentration of cyclic adenosine monophosphate within the Schwann cels and promote protein kinase A activity, thereby activating cyclic adenosine monophosphate/protein kinase A signaling pathway.