单位:[1]China Acad Chinese Med Sci, Guanganmen Hosp, Dept Oncol, Beijing, Peoples R China[2]Beijing Univ Chinese Med, Beijing, Peoples R China[3]China Acad Chinese Med Sci, Guanganmen Hosp, Dept Nephrol, Beijing, Peoples R China[4]China Acad Chinese Med Sci, Inst Chinese Mat Med, Beijing, Peoples R China[5]Capital Med Univ, Beijing Friendship Hosp, Dept Oncol, Beijing, Peoples R China临床科室肿瘤中心肿瘤内科首都医科大学附属北京友谊医院
Initiated by the activation of various nociceptors, pain is a reaction to specific stimulus modalities. The mu-opioid receptor (MOR) agonists, including morphine, remain the most potent analgesics to treat patients with moderate to severe pain. However, the utility of MOR agonists is limited by the adverse effects associated with the use of these drugs, including analgesic tolerance and physical dependence. A strong connection has been suggested between the expression of the transient receptor potential vanilloid type 1 (TRPV1) ion channel and the development of inflammatory hyperalgesia. TRPV1 is important for thermal nociception induction, and is mainly expressed on sensory neurons. Recent reports suggest that opioid or TRPV1 receptor agonist exposure has contrasting consequences for anti-nociception, tolerance and dependence. Chronic morphine exposure modulates TRPV1 activation and induces the anti-nociception effects of morphine. The regulation of many downstream targets of TRPV1 plays a critical role in this process, including calcitonin gene-related peptide (CGRP) and substance P (SP). Additional factors also include capsaicin treatment blocking the anti-nociception effects of morphine in rats, as well as opioid modulation of TRPV1 responses through the cAMP-dependent PKA pathway and MAPK signaling pathways. Here, we review new insights concerning the mechanism underlying MOR-TRPV1 crosstalk and signaling pathways and discuss the potential mechanisms of morphine-induced anti-nociception, tolerance and dependence associated with the TRPV1 signaling pathway and highlight how understanding these mechanisms might help find therapeutic targets for the treatment of morphine induced antinociception, tolerance and dependence.
基金:
National Natural Science Foundation Project of ChinaNational Natural Science Foundation of China (NSFC) [81273718, 81302961]
第一作者单位:[1]China Acad Chinese Med Sci, Guanganmen Hosp, Dept Oncol, Beijing, Peoples R China
通讯作者:
推荐引用方式(GB/T 7714):
Bao Yanju,Gao Yebo,Yang Liping,et al.The mechanism of mu-opioid receptor (MOR)-TRPV1 crosstalk in TRPV1 activation involves morphine anti-nociception, tolerance and dependence[J].CHANNELS.2015,9(5):235-243.doi:10.1080/19336950.2015.1069450.
APA:
Bao, Yanju,Gao, Yebo,Yang, Liping,Kong, Xiangying,Yu, Jing...&Hua, Baojin.(2015).The mechanism of mu-opioid receptor (MOR)-TRPV1 crosstalk in TRPV1 activation involves morphine anti-nociception, tolerance and dependence.CHANNELS,9,(5)
MLA:
Bao, Yanju,et al."The mechanism of mu-opioid receptor (MOR)-TRPV1 crosstalk in TRPV1 activation involves morphine anti-nociception, tolerance and dependence".CHANNELS 9..5(2015):235-243