Peripherally Administered Botulinum Toxin Type a Localizes Bilaterally in Trigeminal Ganglia of Animal Model

書誌事項

タイトル
Peripherally Administered Botulinum Toxin Type a Localizes Bilaterally in Trigeminal Ganglia of Animal Model
タイトル別名
  • 片側末梢投与されたA型ボツリヌス毒素は動物モデルにおいて両側三叉神経節に局在する
著者
ワスキソ, アリーフ
著者別名
  • Waskitho, Arief
著者
ヤマモト, ユミコ
著者別名
  • Yamamoto, Yumiko
著者
Raman, Swarnalakshmi
著者
加納, 史也
著者別名
  • カノウ, フミヤ
  • Kano, Fumiya
著者
Yan, Huijiao
著者
Raju, Resmi
著者
Afroz, Shaista
著者
守田, 剛
著者別名
  • モリタ, ツヨシ
  • Morita, Tsuyoshi
著者
生田目, 大介
著者別名
  • イクタメ, ダイスケ
  • Ikutame, Daisuke
著者
大倉, 一夫
著者別名
  • オオクラ, カズオ
  • Okura, Kazuo
著者
大島, 正充
著者別名
  • オオシマ, マサミツ
  • Ohshima, Masamitsu
著者
山本, 朗仁
著者別名
  • ヤマモト, アキヒト
  • Yamamoto, Akihito
著者
馬場, 麻人
著者別名
  • ババ, オト
  • Baba, Otto
著者
松香, 芳三
著者別名
  • マツカ, ヨシゾウ
  • Matsuka, Yoshizo
学位授与大学
徳島大学
取得学位
博士(歯学)
学位授与番号
甲口第477号
学位授与年月日
2022-03-23

説明

Peripheral nerve injury leads to sensory ganglion hyperexcitation, which increases neurotransmitter release and neuropathic pain. Botulinum toxin type A (BoNT/A) regulates pain transmission by reducing neurotransmitter release, thereby attenuating neuropathic pain. Despite multiple studies on the use of BoNT/A for managing neuropathic pain in the orofacial region, its exact mechanism of transport remains unclear. In this study, we investigated the effects of BoNT/A in managing neuropathic pain in two different animal models and its transport mechanism in the trigeminal nerve. Intraperitoneal administration of cisplatin induced bilateral neuropathic pain in the orofacial region, reducing the head withdrawal threshold to mechanical stimulation. Unilateral infraorbital nerve constriction (IONC) also reduced the ipsilateral head withdrawal threshold to mechanical stimulation. Unilateral peripheral administration of BoNT/A to the rat whisker pad attenuated cisplatin-induced pain behavior bilaterally. Furthermore, contralateral peripheral administration of BoNT/A attenuated neuropathy-induced behavior caused by IONC. We also noted the presence of BoNT/A in the blood using the mouse bioassay. In addition, the Alexa Fluor-488-labeled C-terminal half of the heavy chain of BoNT/A (BoNT/A-Hc) was localized in the neurons of the bilateral trigeminal ganglia following its unilateral administration. These findings suggest that axonal and hematogenous transport are involved in the therapeutic effects of peripherally administered BoNT/A in the orofacial region.

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