The time-course and RNA interference of TNF-alpha, IL-6, and IL-1 beta expression on neuropathic pain induced by L5 spinal nerve transection in rats
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作者:
Choi, Byung Moon
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Univ Ulsan, Coll Med, Asan Med Ctr, Dept Anesthesiol & Pain Med, 88,Olympic Ro 43-Gil, Seoul 138736, South KoreaUniv Ulsan, Coll Med, Asan Med Ctr, Dept Anesthesiol & Pain Med, 88,Olympic Ro 43-Gil, Seoul 138736, South Korea
Choi, Byung Moon
[1
]
Lee, Soo Han
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Univ Ulsan, Coll Med, Asan Med Ctr, Dept Clin Pharmacol & Therapeut, Seoul 138736, South KoreaUniv Ulsan, Coll Med, Asan Med Ctr, Dept Anesthesiol & Pain Med, 88,Olympic Ro 43-Gil, Seoul 138736, South Korea
Lee, Soo Han
[2
]
An, Sang Mee
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Univ Ulsan, Coll Med, Asan Med Ctr, Dept Anesthesiol & Pain Med, 88,Olympic Ro 43-Gil, Seoul 138736, South KoreaUniv Ulsan, Coll Med, Asan Med Ctr, Dept Anesthesiol & Pain Med, 88,Olympic Ro 43-Gil, Seoul 138736, South Korea
An, Sang Mee
[1
]
Park, Do Yang
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Univ Ulsan, Coll Med, Asan Med Ctr, Dept Clin Pharmacol & Therapeut, Seoul 138736, South KoreaUniv Ulsan, Coll Med, Asan Med Ctr, Dept Anesthesiol & Pain Med, 88,Olympic Ro 43-Gil, Seoul 138736, South Korea
Park, Do Yang
[2
]
Lee, Gwan Woo
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Dankook Univ, Coll Med, Dept Anesthesiol & Pain Med, Cheonan, South KoreaUniv Ulsan, Coll Med, Asan Med Ctr, Dept Anesthesiol & Pain Med, 88,Olympic Ro 43-Gil, Seoul 138736, South Korea
Lee, Gwan Woo
[3
]
Noh, Gyu-Jeong
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Univ Ulsan, Coll Med, Asan Med Ctr, Dept Anesthesiol & Pain Med, 88,Olympic Ro 43-Gil, Seoul 138736, South Korea
Univ Ulsan, Coll Med, Asan Med Ctr, Dept Clin Pharmacol & Therapeut, Seoul 138736, South KoreaUniv Ulsan, Coll Med, Asan Med Ctr, Dept Anesthesiol & Pain Med, 88,Olympic Ro 43-Gil, Seoul 138736, South Korea
Noh, Gyu-Jeong
[1
,2
]
机构:
[1] Univ Ulsan, Coll Med, Asan Med Ctr, Dept Anesthesiol & Pain Med, 88,Olympic Ro 43-Gil, Seoul 138736, South Korea
[2] Univ Ulsan, Coll Med, Asan Med Ctr, Dept Clin Pharmacol & Therapeut, Seoul 138736, South Korea
[3] Dankook Univ, Coll Med, Dept Anesthesiol & Pain Med, Cheonan, South Korea
Background: The objective of this study was to investigate the time-course of the expression of TNF-alpha, IL-6, and IL-1 beta after L5 spinal nerve transection (SNT), and to determine the effect of small interfering RNA (siRNA) targeting these cytokines on neuropathic pain. Methods: Rats received control siRNA (CON group, n = 80) or a cocktail of siRNAs targeting these cytokines (COCK group, n = 70). The siRNAs were given via intrathecal catheter 1 d prior to SNT, on the operation day, and 1, 2 and 3 d postoperatively. Behavioral tests and levels of the cytokine mRNAs and proteins as well as glial cell activity were following the L5 SNT. Results: In the CON group, TNF-alpha and IL-1 beta mRNA levels increased immediately after SNT and remained high for 6 d, while IL-6 transcripts only began to increase after 12 h. TNF-alpha and IL-1 beta mRNA levels in the COCK group were lower than in the CON group at all time points (P < 0.05). In the behavioral tests, allodynia and hyperalgesia were significantly lower in the COCK group from 2 d after SNT (P < 0.05). Conclusions: The time courses of TNF-alpha, IL-6 and IL-1 beta mRNA expression after L5 SNT differ. RNA interference may be a method of reducing the development of mechanical allodynia and hyperalgesia in response to nerve injury.