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β2-adrenoreceptor agonist ameliorates mechanical allodynia in paclitaxel-induced neuropathic pain via induction of mitochondrial biogenesis.

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单位: [1]Anesthesiology Institute,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan,430030,China [2]Department of Anesthesiology and Pain Medicine,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan,430030,China [3]Cancer Center,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan,430030,China [4]Department of Pain Management, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China. Electronic address: JPchen22@sxmu.edu.cn. [5]Department of Anesthesiology and Pain Medicine,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan,430030,China.
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Chemotherapy-induced neuropathic pain is a debilitating and common side effect of cancer treatment and so far no effective drug is available for treatment of the serious side effect. Previous studies have demonstrated β2-adrenoreceptor (ADRB2) agonists can attenuate neuropathic pain. However, the role of ADRB2 in paclitaxel -induced neuropathic pain (PINP) remains unclear. In this study, we investigated the effect of formoterol, a long-acting ADRB2 agonist, and related mechanisms in PINP. A rat model of PINP was established by intraperitoneal injection of paclitaxel (2 mg/kg) every other day with a final cumulative dose of 8 mg/kg. Hind paw withdrawal thresholds (PWTs) in response to von Frey filament stimuli were used to evaluate mechanical allodynia. Western blot was used to examine the expression of ADRB2, peroxisome proliferator-activated receptor coactivator-1α (PGC-1α), nuclear respiratory factors 1 (NRF1) and mitochondrial transcription factor A (TFAM) and the immunofluorescence was to detect the cellular localization of ADRB2 and PGC-1α in the spinal cord. Moreover, we measured mitochondrial DNA (mtDNA) copy number by qPCR. In our study, formoterol attenuated established PINP and delayed the onset of PINP. Formoterol restored ADRB2 expression as well as mtDNA copy number and PGC-1α, NRF1, and TFAM protein expression, which are major genes involved in mitochondrial biogenesis, in the spinal cord of PINP rats. Moreover, we found the analgesic effect of formoterol against PINP was partially abolished by PGC-1α inhibitor SR-18292. Collectively, these results demonstrated the activation of ADRB2 with formoterol ameliorates PINP at least partially through induction of mitochondrial biogenesis.Copyright © 2021 The Authors. Published by Elsevier Masson SAS.. All rights reserved.

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出版当年[2020]版:
大类 | 2 区 医学
小类 | 2 区 药学 3 区 医学:研究与实验
最新[2025]版:
大类 | 2 区 医学
小类 | 2 区 医学:研究与实验 2 区 药学
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出版当年[2019]版:
Q1 PHARMACOLOGY & PHARMACY Q1 MEDICINE, RESEARCH & EXPERIMENTAL
最新[2023]版:
Q1 MEDICINE, RESEARCH & EXPERIMENTAL Q1 PHARMACOLOGY & PHARMACY

影响因子: 最新[2023版] 最新五年平均 出版当年[2019版] 出版当年五年平均 出版前一年[2018版] 出版后一年[2020版]

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第一作者单位: [1]Anesthesiology Institute,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan,430030,China [2]Department of Anesthesiology and Pain Medicine,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan,430030,China
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通讯机构: [5]Department of Anesthesiology and Pain Medicine,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan,430030,China.
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