PMID- 35216232 OWN - NLM STAT- MEDLINE DCOM- 20220314 LR - 20220314 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 23 IP - 4 DP - 2022 Feb 14 TI - PACAP-38 Induces Transcriptomic Changes in Rat Trigeminal Ganglion Cells Related to Neuroinflammation and Altered Mitochondrial Function Presumably via PAC1/VPAC2 Receptor-Independent Mechanism. LID - 10.3390/ijms23042120 [doi] LID - 2120 AB - Pituitary adenylate cyclase-activating polypeptide (PACAP) is a broadly expressed neuropeptide which has diverse effects in both the peripheral and central nervous systems. While its neuroprotective effects have been shown in a variety of disease models, both animal and human data support the role of PACAP in migraine generation. Both PACAP and its truncated derivative PACAP(6-38) increased calcium influx in rat trigeminal ganglia (TG) primary sensory neurons in most experimental settings. PACAP(6-38), however, has been described as an antagonist for PACAP type I (known as PAC1), and Vasoactive Intestinal Polypeptide Receptor 2 (also known as VPAC2) receptors. Here, we aimed to compare the signaling pathways induced by the two peptides using transcriptomic analysis. Rat trigeminal ganglion cell cultures were incubated with 1 microM PACAP-38 or PACAP(6-38). Six hours later RNA was isolated, next-generation RNA sequencing was performed and transcriptomic changes were analyzed to identify differentially expressed genes. Functional analysis was performed for gene annotation using the Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Reactome databases. We found 200 common differentially expressed (DE) genes for these two neuropeptides. Both PACAP-38 and PACAP(6-38) treatments caused significant downregulation of NADH: ubiquinone oxidoreductase subunit B6 and upregulation of transient receptor potential cation channel, subfamily M, member 8. The common signaling pathways induced by both peptides indicate that they act on the same target, suggesting that PACAP activates trigeminal primary sensory neurons via a mechanism independent of the identified and cloned PAC1/VPAC2 receptor, either via another target structure or a different splice variant of PAC1/VPAC2 receptors. Identification of the target could help to understand key mechanisms of migraine. FAU - Takacs-Lovasz, Krisztina AU - Takacs-Lovasz K AD - Department of Pharmacology and Pharmacotherapy, Medical School & Szentagothai Research Centre, Molecular Pharmacology Research Group, Centre for Neuroscience, University of Pecs, H-7624 Pecs, Hungary. FAU - Kun, Jozsef AU - Kun J AD - Department of Pharmacology and Pharmacotherapy, Medical School & Szentagothai Research Centre, Molecular Pharmacology Research Group, Centre for Neuroscience, University of Pecs, H-7624 Pecs, Hungary. AD - Szentagothai Research Centre, Bioinformatics Research Group, Genomics and Bioinformatics Core Facility, University of Pecs, H-7624 Pecs, Hungary. FAU - Aczel, Timea AU - Aczel T AD - Department of Pharmacology and Pharmacotherapy, Medical School & Szentagothai Research Centre, Molecular Pharmacology Research Group, Centre for Neuroscience, University of Pecs, H-7624 Pecs, Hungary. FAU - Urban, Peter AU - Urban P AUID- ORCID: 0000-0003-4043-3428 AD - Szentagothai Research Centre, Bioinformatics Research Group, Genomics and Bioinformatics Core Facility, University of Pecs, H-7624 Pecs, Hungary. FAU - Gyenesei, Attila AU - Gyenesei A AD - Szentagothai Research Centre, Bioinformatics Research Group, Genomics and Bioinformatics Core Facility, University of Pecs, H-7624 Pecs, Hungary. FAU - Bolcskei, Kata AU - Bolcskei K AD - Department of Pharmacology and Pharmacotherapy, Medical School & Szentagothai Research Centre, Molecular Pharmacology Research Group, Centre for Neuroscience, University of Pecs, H-7624 Pecs, Hungary. FAU - Szoke, Eva AU - Szoke E AD - Department of Pharmacology and Pharmacotherapy, Medical School & Szentagothai Research Centre, Molecular Pharmacology Research Group, Centre for Neuroscience, University of Pecs, H-7624 Pecs, Hungary. FAU - Helyes, Zsuzsanna AU - Helyes Z AD - Department of Pharmacology and Pharmacotherapy, Medical School & Szentagothai Research Centre, Molecular Pharmacology Research Group, Centre for Neuroscience, University of Pecs, H-7624 Pecs, Hungary. LA - eng GR - 2017-1.2.1-NKP-2017-00002 (NAP-2; Chronic Pain Research Group)/National Brain Research Program/ GR - (GINOP)-2.3.2-15-2016-00050 (Peptidergic Signaling in Health and Disease; PEPSYS)/Economy Development and Innovation Operative Programme/ GR - GINOP 2.3.2-15-2016-0034/Economy Development and Innovation Operative Programme/ GR - (EFOP) 3.6.2-16-2017-00008 (2017-2019)/Human Resource Operative Programme/ GR - EFOP-3.6.1-16-2016-00004/Human Resource Operative Programme/ GR - OTKA FK132587/National Research Development and Innovation Office/ GR - GINOP-2.3.4-15-2020-00010/Economy Development and Innovation Operative Programme/ GR - GINOP-2.3.1-20-2020-00001/Economy Development and Innovation Operative Programme/ GR - BECOMING, 2019-1-HU01-KA203-061251/Educating Experts of the Future: Developing Bioinformatics and Biostatistics competencies of European Biomedical Students/ GR - TKP2020-IKA-08/National Research, Development and Innovation Fund of Hungary/ PT - Journal Article DEP - 20220214 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Pituitary Adenylate Cyclase-Activating Polypeptide) RN - 0 (Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide, Type I) RN - 0 (Receptors, Vasoactive Intestinal Peptide, Type II) SB - IM MH - Animals MH - Cells, Cultured MH - Migraine Disorders/genetics/metabolism MH - Mitochondria/*drug effects/genetics MH - Neuroinflammatory Diseases/*drug therapy/genetics MH - Pituitary Adenylate Cyclase-Activating Polypeptide/*pharmacology MH - Rats MH - Rats, Wistar MH - Receptors, Pituitary Adenylate Cyclase-Activating Polypeptide, Type I/*genetics MH - Receptors, Vasoactive Intestinal Peptide, Type II/*genetics MH - Signal Transduction/drug effects/genetics MH - Transcriptome/*drug effects/genetics MH - Trigeminal Ganglion/*drug effects PMC - PMC8874739 OTO - NOTNLM OT - intracellular calcium OT - mitochondrial electron transport chain OT - pituitary adenylated cyclase-activating polypeptide (PACAP) OT - transcriptomics OT - trigeminal ganglion COIS- The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. EDAT- 2022/02/27 06:00 MHDA- 2022/03/15 06:00 PMCR- 2022/02/14 CRDT- 2022/02/26 01:07 PHST- 2022/01/13 00:00 [received] PHST- 2022/02/07 00:00 [revised] PHST- 2022/02/09 00:00 [accepted] PHST- 2022/02/26 01:07 [entrez] PHST- 2022/02/27 06:00 [pubmed] PHST- 2022/03/15 06:00 [medline] PHST- 2022/02/14 00:00 [pmc-release] AID - ijms23042120 [pii] AID - ijms-23-02120 [pii] AID - 10.3390/ijms23042120 [doi] PST - epublish SO - Int J Mol Sci. 2022 Feb 14;23(4):2120. doi: 10.3390/ijms23042120.