Stem Cells from Human Exfoliated Deciduous Teeth Attenuate Trigeminal Neuralgia in Rats

Trigeminal neuralgia is an incurable progressive nervous system disease that can last for several months or years. Stem cells from human exfoliated deciduous teeth (SHED) are a candidate source for cell-based therapy. Owing to their neuroprotective and immunomodulatory effects, these neural crest ce...

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Main Authors: Xiaofeng Bai, Xuedi Zhang, Chun Wang, Yao Liu, Xuemei Liu, Yu Fan, Xia Zhang
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Stem Cells International
Online Access:http://dx.doi.org/10.1155/2021/8819884
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author Xiaofeng Bai
Xuedi Zhang
Chun Wang
Yao Liu
Xuemei Liu
Yu Fan
Xia Zhang
author_facet Xiaofeng Bai
Xuedi Zhang
Chun Wang
Yao Liu
Xuemei Liu
Yu Fan
Xia Zhang
author_sort Xiaofeng Bai
collection DOAJ
description Trigeminal neuralgia is an incurable progressive nervous system disease that can last for several months or years. Stem cells from human exfoliated deciduous teeth (SHED) are a candidate source for cell-based therapy. Owing to their neuroprotective and immunomodulatory effects, these neural crest cells have potential roles in mediating chronic pain. In this study, we established a rat model of chronic constriction injury of the infraorbital nerve (CCI-ION) to evaluate the analgesic effect of SHED in neuropathic pain. The effects of local SHED transplantation on inflammatory cell infiltration in the trigeminal nerve were investigated based on hematoxylin and eosin staining. The levels of proinflammatory factors in the injured nerve and transient receptor potential vanilloid type 1 (TRPV1) expression in the trigeminal nerve and ganglion were quantified. The data showed that systemic or local injection of SHED attenuated the sensitivity of rats to mechanical stimuli after nerve injury, and this effect lasted throughout the observation period of 8 weeks. PKH26-labeled SHED were distributed to the ipsilateral trigeminal ganglions 24 and 72 hours after local injection. SHED transplantation at the lesion site led to reduced inflammatory cell infiltration and proinflammatory cytokine levels in the injured nerve and inhibited CCI-ION-induced upregulation of TRPV1 expression in the trigeminal nerve and ganglion in the early phase. Therefore, these results provide preclinical evidence that supports the use of SHED in the treatment of trigeminal neuralgia and potentially other chronic pain conditions.
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spelling doaj-art-f204f9b10fd94f90bc445e833652cf602025-02-03T01:24:31ZengWileyStem Cells International1687-966X1687-96782021-01-01202110.1155/2021/88198848819884Stem Cells from Human Exfoliated Deciduous Teeth Attenuate Trigeminal Neuralgia in RatsXiaofeng Bai0Xuedi Zhang1Chun Wang2Yao Liu3Xuemei Liu4Yu Fan5Xia Zhang6Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, China Medical University, 117, N, Nanjing Street, Shenyang, ChinaLiaoning Provincial Key Laboratory of Oral Diseases, 117, N, Nanjing Street, Shenyang, ChinaLiaoning Provincial Key Laboratory of Oral Diseases, 117, N, Nanjing Street, Shenyang, ChinaLiaoning Provincial Key Laboratory of Oral Diseases, 117, N, Nanjing Street, Shenyang, ChinaLiaoning Provincial Key Laboratory of Oral Diseases, 117, N, Nanjing Street, Shenyang, ChinaLiaoning Provincial Key Laboratory of Oral Diseases, 117, N, Nanjing Street, Shenyang, ChinaLiaoning Provincial Key Laboratory of Oral Diseases, 117, N, Nanjing Street, Shenyang, ChinaTrigeminal neuralgia is an incurable progressive nervous system disease that can last for several months or years. Stem cells from human exfoliated deciduous teeth (SHED) are a candidate source for cell-based therapy. Owing to their neuroprotective and immunomodulatory effects, these neural crest cells have potential roles in mediating chronic pain. In this study, we established a rat model of chronic constriction injury of the infraorbital nerve (CCI-ION) to evaluate the analgesic effect of SHED in neuropathic pain. The effects of local SHED transplantation on inflammatory cell infiltration in the trigeminal nerve were investigated based on hematoxylin and eosin staining. The levels of proinflammatory factors in the injured nerve and transient receptor potential vanilloid type 1 (TRPV1) expression in the trigeminal nerve and ganglion were quantified. The data showed that systemic or local injection of SHED attenuated the sensitivity of rats to mechanical stimuli after nerve injury, and this effect lasted throughout the observation period of 8 weeks. PKH26-labeled SHED were distributed to the ipsilateral trigeminal ganglions 24 and 72 hours after local injection. SHED transplantation at the lesion site led to reduced inflammatory cell infiltration and proinflammatory cytokine levels in the injured nerve and inhibited CCI-ION-induced upregulation of TRPV1 expression in the trigeminal nerve and ganglion in the early phase. Therefore, these results provide preclinical evidence that supports the use of SHED in the treatment of trigeminal neuralgia and potentially other chronic pain conditions.http://dx.doi.org/10.1155/2021/8819884
spellingShingle Xiaofeng Bai
Xuedi Zhang
Chun Wang
Yao Liu
Xuemei Liu
Yu Fan
Xia Zhang
Stem Cells from Human Exfoliated Deciduous Teeth Attenuate Trigeminal Neuralgia in Rats
Stem Cells International
title Stem Cells from Human Exfoliated Deciduous Teeth Attenuate Trigeminal Neuralgia in Rats
title_full Stem Cells from Human Exfoliated Deciduous Teeth Attenuate Trigeminal Neuralgia in Rats
title_fullStr Stem Cells from Human Exfoliated Deciduous Teeth Attenuate Trigeminal Neuralgia in Rats
title_full_unstemmed Stem Cells from Human Exfoliated Deciduous Teeth Attenuate Trigeminal Neuralgia in Rats
title_short Stem Cells from Human Exfoliated Deciduous Teeth Attenuate Trigeminal Neuralgia in Rats
title_sort stem cells from human exfoliated deciduous teeth attenuate trigeminal neuralgia in rats
url http://dx.doi.org/10.1155/2021/8819884
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