PMID- 34386989 OWN - NLM STAT- MEDLINE DCOM- 20220119 LR - 20220119 IS - 1365-2842 (Electronic) IS - 0305-182X (Linking) VI - 49 IP - 2 DP - 2022 Feb TI - Stem cells from human exfoliated deciduous teeth relieve pain via downregulation of c-Jun in a rat model of trigeminal neuralgia. PG - 219-227 LID - 10.1111/joor.13243 [doi] AB - BACKGROUND: Stem cells from human exfoliated deciduous teeth (SHED) have excellent immunomodulatory and neuroprotective abilities. It is possible that systemic SHED transplantation could ameliorate trigeminal neuralgia. The phosphorylation of c-Jun contributes to the development of hyperalgesia and allodynia. OBJECTIVE: The present study aimed to evaluate whether systemic SHED transplantation could lead to analgesic effects by regulating peripheral c-Jun in the trigeminal ganglia (TG) in a rat model of trigeminal neuralgia. METHODS: Chronic constriction injury of the infraorbital nerve (CCI-ION) was performed to establish a rat pain model. SHED were obtained from discarded exfoliated deciduous teeth from children and transplanted by a single infusion through the tail vein. SHED were labelled with the PKH26 red fluorescent cell linker mini kit for tract distribution. The mechanical threshold was determined using von Frey filaments. The mRNA levels of c-Jun in the ipsilateral TG were quantified. The phosphorylation of c-Jun in the ipsilateral TG was assessed by immunohistochemistry and Western blotting. RESULTS: PKH26-labelled SHED were distributed to both sides of TG, lung, liver and spleen. Systemic SHED transplantation significantly elevated the mechanical thresholds in CCI-ION rats and blocked the upregulation of c-Jun mRNA levels in the TG caused by nerve ligation. The activation of c-Jun in the TG was blocked by SHED transplantation. CONCLUSIONS: These findings demonstrate that systemic SHED administration reverts trigeminal neuralgia via downregulation of c-Jun in the TG. CI - (c) 2021 John Wiley & Sons Ltd. FAU - Bai, Xiaofeng AU - Bai X AD - Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, China Medical University, Shenyang, China. AD - Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China. FAU - Xiao, Ke AU - Xiao K AD - Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China. AD - Painless Dental Treatment Center, Hospital of Stomatology, China Medical University, Shenyang, China. FAU - Yang, Zhijie AU - Yang Z AD - Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, China Medical University, Shenyang, China. AD - Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China. FAU - Zhang, Ziqi AU - Zhang Z AD - Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, China Medical University, Shenyang, China. AD - Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China. FAU - Li, Jing AU - Li J AD - Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, China Medical University, Shenyang, China. AD - Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China. FAU - Yan, Ziyi AU - Yan Z AD - Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, China Medical University, Shenyang, China. AD - Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China. FAU - Cao, Keda AU - Cao K AD - Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, China Medical University, Shenyang, China. AD - Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China. FAU - Zhang, Weiqian AU - Zhang W AD - Hospital of Stomatology, China Medical University, Shenyang, China. FAU - Zhang, Xia AU - Zhang X AUID- ORCID: 0000-0002-7996-4843 AD - Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China. AD - Painless Dental Treatment Center, Hospital of Stomatology, China Medical University, Shenyang, China. LA - eng GR - 81400530/National Natural Science Foundation of China/ GR - 20180530097/Natural Science Foundation of Liaoning Province/ GR - 201602811/Natural Science Foundation of Liaoning Province/ PT - Journal Article DEP - 20210817 PL - England TA - J Oral Rehabil JT - Journal of oral rehabilitation JID - 0433604 SB - IM MH - Animals MH - Down-Regulation MH - Humans MH - Hyperalgesia MH - Pain MH - Rats MH - Rats, Sprague-Dawley MH - Stem Cells MH - Tooth, Deciduous MH - *Trigeminal Neuralgia OTO - NOTNLM OT - c-Jun OT - infraorbital nerve OT - pain relief OT - stem cells from human exfoliated deciduous teeth OT - trigeminal ganglia OT - trigeminal neuralgia EDAT- 2021/08/14 06:00 MHDA- 2022/01/20 06:00 CRDT- 2021/08/13 07:23 PHST- 2021/07/01 00:00 [received] PHST- 2021/08/10 00:00 [accepted] PHST- 2021/08/14 06:00 [pubmed] PHST- 2022/01/20 06:00 [medline] PHST- 2021/08/13 07:23 [entrez] AID - 10.1111/joor.13243 [doi] PST - ppublish SO - J Oral Rehabil. 2022 Feb;49(2):219-227. doi: 10.1111/joor.13243. Epub 2021 Aug 17.