Antinociceptive Effects of Aaptamine, a Sponge Component, on Peripheral Neuropathy in Rats

Aaptamine, a natural marine compound isolated from the sea sponge, has various biological activities, including delta-opioid agonist properties. However, the effects of aaptamine in neuropathic pain remain unclear. In the present study, we used a chronic constriction injury (CCI)-induced peripheral...

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Main Authors: Chun-Sung Sung, Hao-Jung Cheng, Nan-Fu Chen, Shih-Hsuan Tang, Hsiao-Mei Kuo, Ping-Jyun Sung, Wu-Fu Chen, Zhi-Hong Wen
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Marine Drugs
Subjects:
Online Access:https://www.mdpi.com/1660-3397/21/2/113
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author Chun-Sung Sung
Hao-Jung Cheng
Nan-Fu Chen
Shih-Hsuan Tang
Hsiao-Mei Kuo
Ping-Jyun Sung
Wu-Fu Chen
Zhi-Hong Wen
author_facet Chun-Sung Sung
Hao-Jung Cheng
Nan-Fu Chen
Shih-Hsuan Tang
Hsiao-Mei Kuo
Ping-Jyun Sung
Wu-Fu Chen
Zhi-Hong Wen
author_sort Chun-Sung Sung
collection DOAJ
description Aaptamine, a natural marine compound isolated from the sea sponge, has various biological activities, including delta-opioid agonist properties. However, the effects of aaptamine in neuropathic pain remain unclear. In the present study, we used a chronic constriction injury (CCI)-induced peripheral neuropathic rat model to explore the analgesic effects of intrathecal aaptamine administration. We also investigated cellular angiogenesis and lactate dehydrogenase A (LDHA) expression in the ipsilateral lumbar spinal cord after aaptamine administration in CCI rats by immunohistofluorescence. The results showed that aaptamine alleviates CCI-induced nociceptive sensitization, allodynia, and hyperalgesia. Moreover, aaptamine significantly downregulated CCI-induced vascular endothelial growth factor (VEGF), cluster of differentiation 31 (CD31), and LDHA expression in the spinal cord. Double immunofluorescent staining showed that the spinal VEGF and LDHA majorly expressed on astrocytes and neurons, respectively, in CCI rats and inhibited by aaptamine. Collectively, our results indicate aaptamine’s potential as an analgesic agent for neuropathic pain. Furthermore, inhibition of astrocyte-derived angiogenesis and neuronal LDHA expression might be beneficial in neuropathy.
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spelling doaj.art-edb3ca4e7ed4490d84d09947888ec3092023-11-16T21:47:58ZengMDPI AGMarine Drugs1660-33972023-02-0121211310.3390/md21020113Antinociceptive Effects of Aaptamine, a Sponge Component, on Peripheral Neuropathy in RatsChun-Sung Sung0Hao-Jung Cheng1Nan-Fu Chen2Shih-Hsuan Tang3Hsiao-Mei Kuo4Ping-Jyun Sung5Wu-Fu Chen6Zhi-Hong Wen7Department of Anesthesiology, Division of Pain Management, Taipei Veterans General Hospital, Taipei 112201, TaiwanDepartment of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804201, TaiwanDepartment of Surgery, Division of Neurosurgery, Kaohsiung Armed Forces General Hospital, Kaohsiung 802301, TaiwanDepartment of Anesthesiology, Division of Pain Management, Taipei Veterans General Hospital, Taipei 112201, TaiwanDepartment of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804201, TaiwanDepartment of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804201, TaiwanDepartment of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804201, TaiwanDepartment of Marine Biotechnology and Resources, National Sun Yat-Sen University, Kaohsiung 804201, TaiwanAaptamine, a natural marine compound isolated from the sea sponge, has various biological activities, including delta-opioid agonist properties. However, the effects of aaptamine in neuropathic pain remain unclear. In the present study, we used a chronic constriction injury (CCI)-induced peripheral neuropathic rat model to explore the analgesic effects of intrathecal aaptamine administration. We also investigated cellular angiogenesis and lactate dehydrogenase A (LDHA) expression in the ipsilateral lumbar spinal cord after aaptamine administration in CCI rats by immunohistofluorescence. The results showed that aaptamine alleviates CCI-induced nociceptive sensitization, allodynia, and hyperalgesia. Moreover, aaptamine significantly downregulated CCI-induced vascular endothelial growth factor (VEGF), cluster of differentiation 31 (CD31), and LDHA expression in the spinal cord. Double immunofluorescent staining showed that the spinal VEGF and LDHA majorly expressed on astrocytes and neurons, respectively, in CCI rats and inhibited by aaptamine. Collectively, our results indicate aaptamine’s potential as an analgesic agent for neuropathic pain. Furthermore, inhibition of astrocyte-derived angiogenesis and neuronal LDHA expression might be beneficial in neuropathy.https://www.mdpi.com/1660-3397/21/2/113aaptamineneuropathic painangiogenesisLDHA
spellingShingle Chun-Sung Sung
Hao-Jung Cheng
Nan-Fu Chen
Shih-Hsuan Tang
Hsiao-Mei Kuo
Ping-Jyun Sung
Wu-Fu Chen
Zhi-Hong Wen
Antinociceptive Effects of Aaptamine, a Sponge Component, on Peripheral Neuropathy in Rats
Marine Drugs
aaptamine
neuropathic pain
angiogenesis
LDHA
title Antinociceptive Effects of Aaptamine, a Sponge Component, on Peripheral Neuropathy in Rats
title_full Antinociceptive Effects of Aaptamine, a Sponge Component, on Peripheral Neuropathy in Rats
title_fullStr Antinociceptive Effects of Aaptamine, a Sponge Component, on Peripheral Neuropathy in Rats
title_full_unstemmed Antinociceptive Effects of Aaptamine, a Sponge Component, on Peripheral Neuropathy in Rats
title_short Antinociceptive Effects of Aaptamine, a Sponge Component, on Peripheral Neuropathy in Rats
title_sort antinociceptive effects of aaptamine a sponge component on peripheral neuropathy in rats
topic aaptamine
neuropathic pain
angiogenesis
LDHA
url https://www.mdpi.com/1660-3397/21/2/113
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