Antinociceptive effect of intrathecal microencapsulated human pheochromocytoma cell in a rat model of bone cancer pain.

Antinociceptive effect of intrathecal microencapsulated human pheochromocytoma cell in a rat model of bone cancer pain.
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鞘内微囊化人嗜铬细胞瘤细胞在骨癌疼痛大鼠模型中的镇痛作用。

DOI:
10.3390/ijms150712135
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发表时间:
2014-07-08
影响因子:
5.6
通讯作者:
Ma C
Ma C
中科院分区:
生物学2区
文献类型:
--
作者:
Li X;Li G;Wu S;Zhang B;Wan Q;Yu D;Zhou R;Ma C

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人类嗜铬细胞瘤细胞被证实含有并释放甲硫氨酸脑啡肽和去甲肾上腺素,可能是治疗癌症引起的顽固性疼痛的一种有前途的细胞治疗资源。鞘内注射海藻酸盐-多(L)赖氨酸-海藻酸盐微囊化的人嗜铬细胞瘤细胞可引起大鼠骨癌痛模型的抗伤害性反应,该作用可被阿片类拮抗剂纳洛酮和α2-肾上腺素能拮抗剂rauwolscine阻断。脑脊液的神经化学变化与镇痛反应相一致。综上所述,这些数据支持人嗜铬细胞瘤细胞植入物诱导的抗伤害作用是由细胞植入物分泌的甲硫氨酸脑啡肽和去甲肾上腺素作用于脊髓感受器所介导的。微囊化人嗜铬细胞瘤细胞的脊髓植入可能为慢性顽固性疼痛的治疗提供一种替代方法。
Human pheochromocytoma cells, which are demonstrated to contain and release met-enkephalin and norepinephrine, may be a promising resource for cell therapy in cancer-induced intractable pain. Intrathecal injection of alginate-poly (l) lysine-alginate (APA) microencapsulated human pheochromocytoma cells leads to antinociceptive effect in a rat model of bone cancer pain, and this effect was blocked by opioid antagonist naloxone and alpha 2-adrenergic antagonist rauwolscine. Neurochemical changes of cerebrospinal fluid are in accordance with the analgesic responses. Taken together, these data support that human pheochromocytoma cell implant-induced antinociception was mediated by met-enkephalin and norepinephrine secreted from the cell implants and acting at spinal receptors. Spinal implantation of microencapsulated human pheochromocytoma cells may provide an alternative approach for the therapy of chronic intractable pain.
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