Voltage-dependent anion channel 1（VDAC1） is thought to contribute to the progression of tumor development. However, whether VDAC1 contributes to bone cancer pain remains unknown. In this study, we found that the exp...Voltage-dependent anion channel 1（VDAC1） is thought to contribute to the progression of tumor development. However, whether VDAC1 contributes to bone cancer pain remains unknown. In this study, we found that the expression of VDAC1 was upregulated in the L2–5 segments of the spinal dorsal horn at 2 and 3 weeks after injection of tumor cells into the tibial cavity. Intrathecal injection of a VDAC1 inhibitor significantly reversed the pain hypersensitivity and reduced the over-expression of Toll-like receptor 4（TLR4）. Intrathecal injection of minocycline, an inhibitor of microglia, also attenuated the pain hypersensitivity of rat models of bone cancer pain.These results suggest that VDAC1 plays a significant role in the development of complicated cancer pain, possibly by regulating the expression of TLR4.展开更多
目的 :研究鞘内连续注射吗啡联合地塞米松治疗癌性骨痛(cancer-induced bone pain,CIBP)的疗效及其机制。方法:76例CIBP患者均接受椎管内镇痛药输注港皮下植入术,并随机分入吗啡组(A组38例,鞘内泵入吗啡)和吗啡联合地塞米松组(B组38例,...目的 :研究鞘内连续注射吗啡联合地塞米松治疗癌性骨痛(cancer-induced bone pain,CIBP)的疗效及其机制。方法:76例CIBP患者均接受椎管内镇痛药输注港皮下植入术,并随机分入吗啡组(A组38例,鞘内泵入吗啡)和吗啡联合地塞米松组(B组38例,鞘内泵入吗啡和地塞米松)。于治疗前以及治疗开始后第1、3、7天评定11点数字评分量表(11-Point Numeric Rating Scale,NRS-11)评分、每日爆发痛次数、生活质量和SF-36量表评分。治疗开始后第7天测定血浆内啡肽和胃动素以及脑脊液中前列腺素E2、P物质和降钙素基因相关肽的水平。结果:B组疼痛缓解效果明显,治疗开始后第1、3、7天的每日爆发痛次数均明显少于A组(P<0.05);2组治疗后的NRS-11评分均<2分,但2组之间NRS-11评分的差异无统计学意义;B组治疗开始后第3和7天的SF-36量表评分和生活质量均较A组有显著改善(P<0.05)。治疗开始后第7天,2组的血浆内啡肽水平差异无统计学意义(P>0.05),但B组的血浆胃动素水平高于A组(P<0.05);B组脑脊液中前列腺素E2、P物质和降钙素基因相关肽水平均低于A组(P<0.05)。结论:鞘内泵入吗啡联合地塞米松与鞘内泵入吗啡相比,可减少CIBP的爆发痛次数,改善患者的生活质量;并可升高血浆胃动素水平,降低脑脊液中前列腺素E2、P物质和降钙素基因相关肽的水平,减轻吗啡耐受,增强镇痛效果。展开更多
基金supported by grants from the National Key Research and Development Program of China (2016YFC1302200)the National Natural Science Foundation of China (31730040, 81070884, and 81471137)+2 种基金the Suzhou Health Planning Commission’s Key Clinical Diagnosis and Treatment Program (LCZX201606)the Priority Academic Program Development of Jiangsu Higher Education Institutions of Chinasubject to the Preponderant Clinic Discipline Group Project funding from the Second Affiliated Hospital of Soochow University (XKQ2015008)
文摘Voltage-dependent anion channel 1（VDAC1） is thought to contribute to the progression of tumor development. However, whether VDAC1 contributes to bone cancer pain remains unknown. In this study, we found that the expression of VDAC1 was upregulated in the L2–5 segments of the spinal dorsal horn at 2 and 3 weeks after injection of tumor cells into the tibial cavity. Intrathecal injection of a VDAC1 inhibitor significantly reversed the pain hypersensitivity and reduced the over-expression of Toll-like receptor 4（TLR4）. Intrathecal injection of minocycline, an inhibitor of microglia, also attenuated the pain hypersensitivity of rat models of bone cancer pain.These results suggest that VDAC1 plays a significant role in the development of complicated cancer pain, possibly by regulating the expression of TLR4.
