Minocycline Effects on IL-6 Concentration in Macrophage and Microglial Cells in a Rat Model of Neuropathic Pain

Evidence indicates that neuropathic pain pathogenesis is not confined to changes in the activity of neuronal systems but involves interactions between neurons, inflammatory immune and immune-like glial cells. Substances released from immune cells during inflammation play an important role in develop...

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Veröffentlicht in:Iranian biomedical journal 2016-11, Vol.20 (5), p.273-279
Hauptverfasser: Moini-Zanjani, Taraneh, Ostad, Seyed-Nasser, Labibi, Farzaneh, Ameli, Haleh, Mosaffa, Nariman, Sabetkasaei, Masoumeh
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container_end_page 279
container_issue 5
container_start_page 273
container_title Iranian biomedical journal
container_volume 20
creator Moini-Zanjani, Taraneh
Ostad, Seyed-Nasser
Labibi, Farzaneh
Ameli, Haleh
Mosaffa, Nariman
Sabetkasaei, Masoumeh
description Evidence indicates that neuropathic pain pathogenesis is not confined to changes in the activity of neuronal systems but involves interactions between neurons, inflammatory immune and immune-like glial cells. Substances released from immune cells during inflammation play an important role in development and maintenance of neuropathic pain. It has been found that minocycline suppresses the development of neuropathic pain. Here, we evaluated the analgesic effect of minocycline in a chronic constriction injury (CCI) model of neuropathic pain in rat and assessed IL-6 concentration from cultured macrophage and microglia cells. Male Wistar rat (n=6, 150-200 g) were divided into three different groups: 1) CCI+vehicle, 2) sham+vehicle, and 3) CCI+drug. Minocycline (10, 20, and 40 mg/kg) was injected one hour before surgery and continued daily to day 14 post ligation. Von Frey filaments and acetone, as pain behavioral tests, were used for mechanical allodynia and cold allodynia, respectively. Experiments were performed on day 0 (before surgery) and days 1, 3, 5, 7, 10, and 14 post -injury. At day 14, rats were killed and monocyte-derived macrophage from right ventricle and microglia from lumbar part of the spinal cord were isolated and cultured in RPMI and Leibovitz's media, respectively. IL-6 concentration was evaluated in cell culture supernatant after 24 h. Minocycline (10, 20, and 40 mg/kg) attenuated pain behavior, and a decrease in IL-6 concentration was observed in immune cells compared to CCI vehicle-treated animals. Minocycline reduced pain behavior and decreased IL-6 concentration in macrophage and microglial cells.
doi_str_mv 10.22045/ibj.2016.04
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subjects Analgesics
Analgesics - therapeutic use
Animals
Cell culture
Cytokines
Disease Models, Animal
Full Lenght
Hyperalgesia - drug therapy
Interleukin-6 - metabolism
Macrophages - metabolism
Male
Microglia - metabolism
Minocycline - therapeutic use
Neuralgia - drug therapy
Neuralgia - pathology
Neuroglia - pathology
Neurons - pathology
Ostomy
Pain
Pathogenesis
Rats
Rats, Wistar
Rodents
Spinal cord
Studies
Surgery
Tumor necrosis factor-TNF
title Minocycline Effects on IL-6 Concentration in Macrophage and Microglial Cells in a Rat Model of Neuropathic Pain
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