目的探讨藏雪莲(SSB)多糖是否通过P38丝裂原激活蛋白激酶(P38MAPK)通路减轻中波紫外线(UVB)辐射后皮肤角质形成细胞(Ha Ca T细胞)凋亡引起炎性损伤。方法 2014年10月—2015年3月,提取SSB多糖,体外培养Ha Ca T细胞,将Ha Ca T细胞分为低...目的探讨藏雪莲(SSB)多糖是否通过P38丝裂原激活蛋白激酶(P38MAPK)通路减轻中波紫外线(UVB)辐射后皮肤角质形成细胞(Ha Ca T细胞)凋亡引起炎性损伤。方法 2014年10月—2015年3月,提取SSB多糖,体外培养Ha Ca T细胞,将Ha Ca T细胞分为低剂量辐射组(30 m J/cm2,辐射1 h,A组)和高剂量辐射组(60 m J/cm2,辐射1 h,B组);将A组和B组又分别分为对照组(1组)、辐射组(UVB,2组)、低剂量SSB多糖组(UVB+SSB 10 mg/ml,3组)和高剂量SSB多糖组(UVB+SSB 40 mg/ml,4组)。采用酶联免疫吸附实验(ELISA)法检测并比较白介素6(IL-6)、肿瘤坏死因子α(TNF-α)、P38MAPK、P53、B细胞淋巴瘤因子2(Bcl-2)、Bcl-2相关X(Bax)、半胱氨酸蛋白酶3(Caspase-3)水平。结果 A2组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平高于A1组,Bcl-2水平低于A1组(P<0.05);A3组IL-6、TNF-α、P38MAPK、Caspase-3水平高于A1组(P<0.05);A4组TNF-α、Bcl-2水平高于A1组(P<0.05);A3组、A4组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平低于A2组,Bcl-2水平高于A2组(P<0.05);A4组IL-6、TNF-α、Caspase-3水平低于A3组,Bcl-2水平高于A3组(P<0.05)。B2组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平高于B1组,Bcl-2水平低于B1组(P<0.05);B3组IL-6、TNF-α水平高于B1组,Bcl-2水平低于B1组(P<0.05);B4组IL-6、Bcl-2水平高于B1组,TNF-α、Caspase-3水平低于B1组(P<0.05);B3组、B4组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平低于B2组,Bcl-2水平高于B2组(P<0.05);B4组IL-6、TNF-α、Caspase-3水平低于B3组,Bcl-2水平高于B3组(P<0.05)。结论 SSB多糖通过P38MAPK通路减少UVB辐射后Ha Ca T细胞凋亡,进而减轻Ha Ca T细胞的炎性损伤。展开更多
Transforming growth factor-β(TGF-β) is a multifunctional growth factor. It plays a very important role in the growth, dif ferentiation, migration, apoptosis of cells and production of extracellular matr ix throughou...Transforming growth factor-β(TGF-β) is a multifunctional growth factor. It plays a very important role in the growth, dif ferentiation, migration, apoptosis of cells and production of extracellular matr ix throughout many signaling pathways. MAPK cascade is one of those signaling pa thways. TGF-β can activate MAPKs and fulfill its multiple regulation on a varie ty of cells.展开更多
Pathological pain or clinical pain is caused by tissue and nerve injuries,and is usually chronic and mainly divided into inflammatory pain and neuropathic pain. Pathological pain is typically characterized by hyperalg...Pathological pain or clinical pain is caused by tissue and nerve injuries,and is usually chronic and mainly divided into inflammatory pain and neuropathic pain. Pathological pain is typically characterized by hyperalgesia (increased responsiveness to noxious stimuli) and allodynia (painful responses to normally innocuous stimuli). The mitogen-activated proteins kinases (MAPKs) are a family of evolutionally conserved molecules that play a critical role in cell signaling,consisting of extracellular signal regulated kinase (ERK),p38,and c-Jun N-terminal kinase (JNK),which play an important role in neural plasticity of pathological pain. Inhibition of MAPKs alleviates inflammatory pain and neuropathic pain in different animal models. It is very important to study the inhibition of MAPKs as a therapeutic approach to treat pathological pain.展开更多
文摘目的探讨藏雪莲(SSB)多糖是否通过P38丝裂原激活蛋白激酶(P38MAPK)通路减轻中波紫外线(UVB)辐射后皮肤角质形成细胞(Ha Ca T细胞)凋亡引起炎性损伤。方法 2014年10月—2015年3月,提取SSB多糖,体外培养Ha Ca T细胞,将Ha Ca T细胞分为低剂量辐射组(30 m J/cm2,辐射1 h,A组)和高剂量辐射组(60 m J/cm2,辐射1 h,B组);将A组和B组又分别分为对照组(1组)、辐射组(UVB,2组)、低剂量SSB多糖组(UVB+SSB 10 mg/ml,3组)和高剂量SSB多糖组(UVB+SSB 40 mg/ml,4组)。采用酶联免疫吸附实验(ELISA)法检测并比较白介素6(IL-6)、肿瘤坏死因子α(TNF-α)、P38MAPK、P53、B细胞淋巴瘤因子2(Bcl-2)、Bcl-2相关X(Bax)、半胱氨酸蛋白酶3(Caspase-3)水平。结果 A2组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平高于A1组,Bcl-2水平低于A1组(P<0.05);A3组IL-6、TNF-α、P38MAPK、Caspase-3水平高于A1组(P<0.05);A4组TNF-α、Bcl-2水平高于A1组(P<0.05);A3组、A4组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平低于A2组,Bcl-2水平高于A2组(P<0.05);A4组IL-6、TNF-α、Caspase-3水平低于A3组,Bcl-2水平高于A3组(P<0.05)。B2组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平高于B1组,Bcl-2水平低于B1组(P<0.05);B3组IL-6、TNF-α水平高于B1组,Bcl-2水平低于B1组(P<0.05);B4组IL-6、Bcl-2水平高于B1组,TNF-α、Caspase-3水平低于B1组(P<0.05);B3组、B4组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平低于B2组,Bcl-2水平高于B2组(P<0.05);B4组IL-6、TNF-α、Caspase-3水平低于B3组,Bcl-2水平高于B3组(P<0.05)。结论 SSB多糖通过P38MAPK通路减少UVB辐射后Ha Ca T细胞凋亡,进而减轻Ha Ca T细胞的炎性损伤。
文摘Transforming growth factor-β(TGF-β) is a multifunctional growth factor. It plays a very important role in the growth, dif ferentiation, migration, apoptosis of cells and production of extracellular matr ix throughout many signaling pathways. MAPK cascade is one of those signaling pa thways. TGF-β can activate MAPKs and fulfill its multiple regulation on a varie ty of cells.
基金Natural Science Foundation of Hebei Province (302494)Natural Science Foundation of Hebei Province ( C200500720 )Special Foundation for Doctor Education in University from Ministry of Education of China (20050089001)~~
文摘Pathological pain or clinical pain is caused by tissue and nerve injuries,and is usually chronic and mainly divided into inflammatory pain and neuropathic pain. Pathological pain is typically characterized by hyperalgesia (increased responsiveness to noxious stimuli) and allodynia (painful responses to normally innocuous stimuli). The mitogen-activated proteins kinases (MAPKs) are a family of evolutionally conserved molecules that play a critical role in cell signaling,consisting of extracellular signal regulated kinase (ERK),p38,and c-Jun N-terminal kinase (JNK),which play an important role in neural plasticity of pathological pain. Inhibition of MAPKs alleviates inflammatory pain and neuropathic pain in different animal models. It is very important to study the inhibition of MAPKs as a therapeutic approach to treat pathological pain.
