NGF-Induced Upregulation of CGRP in Orofacial Pain Induced by Tooth Movement Is Dependent on Atp6v0a1 and Vesicle Release
| Autor: | Tianjin Tao, Yi Liu, Jingqi Zhang, Wenli Lai, Hu Long |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Nociception
Vacuolar Proton-Translocating ATPases Tooth Movement Techniques Calcitonin Gene-Related Peptide Catalysis Exocytosis Inorganic Chemistry Rats Sprague-Dawley Neuroblastoma Facial Pain Nerve Growth Factor Animals Physical and Theoretical Chemistry RNA Small Interfering Molecular Biology Spectroscopy In Situ Hybridization Fluorescence Adenosine Triphosphatases Neurons Organic Chemistry orofacial pain trigeminal ganglia trigeminal subnucleus caudalis lentivirus NGF Atp6v0a1 CGRP General Medicine Computer Science Applications Rats Up-Regulation Protons Immunosorbents |
| Zdroj: | International Journal of Molecular Sciences; Volume 23; Issue 19; Pages: 11440 |
| ISSN: | 1422-0067 |
| Popis: | The nerve growth factor (NGF) and calcitonin gene-related peptide (CGRP) play a crucial role in the regulation of orofacial pain. It has been demonstrated that CGRP increases orofacial pain induced by NGF. V-type proton ATPase subunit an isoform 1 (Atp6v0a1) is involved in the exocytosis pathway, especially in vesicular transport in neurons. The objective was to examine the role of Atp6v0a1 in NGF-induced upregulation of CGRP in orofacial pain induced by experimental tooth movement. Orofacial pain was elicited by ligating closed-coil springs between incisors and molars in Sprague–Dawley rats. Gene and protein expression levels were determined through real-time polymerase chain reaction, immunostaining, and fluorescence in situ hybridization. Lentivirus vectors carrying Atp6v0a1 shRNA were used to knockdown the expression of Atp6v0a1 in TG and SH-SY5Y neurons. The release of vesicles in SH-SY5Y neurons was observed by using fluorescence dye FM1-43, and the release of CGRP was detected by Enzyme-Linked Immunosorbent Assy. Orofacial pain was evaluated through the rat grimace scale. Our results revealed that intraganglionic administration of NGF and Atp6v0a1 shRNA upregulated and downregulated CGRP in trigeminal ganglia (TG) and trigeminal subnucleus caudalis (Vc), respectively, and the orofacial pain was also exacerbated and alleviated, respectively, following administration of NGF and Atp6v0a1 shRNA. Besides, intraganglionic administration of NGF simultaneously caused the downregulation of Atp6v0a1 in TG. Moreover, the release of vesicles and CGRP in SH-SY5Y neurons was interfered by NGF and Atp6v0a1 shRNA. In conclusion, in the orofacial pain induced by experimental tooth movement, NGF induced the upregulation of CGRP in TG and Vc, and this process is dependent on Atp6v0a1 and vesicle release, suggesting that they are involved in the transmission of nociceptive information in orofacial pain. |
| Databáze: | OpenAIRE |
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