PMID- 29428223 OWN - NLM STAT- MEDLINE DCOM- 20190109 LR - 20211204 IS - 1873-2968 (Electronic) IS - 0006-2952 (Linking) VI - 151 DP - 2018 May TI - Angiotensin 1-7 ameliorates 6-hydroxydopamine lesions in hemiparkinsonian rats through activation of MAS receptor/PI3K/Akt/BDNF pathway and inhibition of angiotensin II type-1 receptor/NF-kappaB axis. PG - 126-134 LID - S0006-2952(18)30053-4 [pii] LID - 10.1016/j.bcp.2018.01.047 [doi] AB - MAS receptor (MASR), expressed in several brain areas, conferred neuroprotection against neurodegenerative disorders when activated by angiotensin (Ang) 1-7; however, its role in Parkinson's disease (PD) remains elusive. Intra-striatal post-administration of Ang1-7, using a 6-hydroxydopamine (OHDA) PD model, improved motor performance and muscle coordination. On the molecular level, Ang1-7 upregulated the striatal expression of MASR and caused upsurge in its downstream targets (p-PI3K/p-Akt/p-CREB/BDNF) to phosphorylate TrKB, which in a positive feedback upregulates MASR. Moreover, Ang1-7 increased substantia nigral tyrosine hydroxylase (TH) expression and striatal dopamine (DA) content to indicate the preservation of the dopaminergic neuronal signal. This effect extended to inhibit the striatal expression of Ang II type-1 receptor (AT-1R) to hold the neurodegenerative effect and to boost Ang1-7 anti-inflammatory/antioxidant effects by abating NADPH oxidase, along with lipid peroxidation. Indeed, Ang1-7 was able to decrease p-MAPK p38/NF-kappaB p65 to level the inflammatory and oxidative stress events off. The Ang1-7-mediated activation of MASR cue and the suppression of the AT-1R cascade were partially reversed by the intrastartial injection of A-779, a MASR antagonist. The current data suggests a novel therapeutic potential for the Ang1-7 against neurotoxicity associated motor impairment related to PD. The anti-parkinsonian effect of Ang1-7, is in part, mediated by its binding to MASR and the initiation of PI3K/Akt/CREB/BDNF/TrKB cue to increase DA synthesis, besides the downregulation/inhibition of AT-1R/MAPK p38/NF-kappaB p65/NADPH oxidase pathway. CI - Copyright (c) 2018 Elsevier Inc. All rights reserved. FAU - Rabie, Mostafa A AU - Rabie MA AD - Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kappaasr El-Aini Str., 11562 Cairo, Egypt. FAU - Abd El Fattah, Mai A AU - Abd El Fattah MA AD - Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kappaasr El-Aini Str., 11562 Cairo, Egypt. FAU - Nassar, Noha N AU - Nassar NN AD - Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kappaasr El-Aini Str., 11562 Cairo, Egypt. FAU - El-Abhar, Hanan S AU - El-Abhar HS AD - Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kappaasr El-Aini Str., 11562 Cairo, Egypt. Electronic address: hanan.elabhar@pharma.cu.edu.eg. FAU - Abdallah, Dalaal M AU - Abdallah DM AD - Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kappaasr El-Aini Str., 11562 Cairo, Egypt. LA - eng PT - Journal Article DEP - 20180208 PL - England TA - Biochem Pharmacol JT - Biochemical pharmacology JID - 0101032 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (NF-kappa B) RN - 0 (Peptide Fragments) RN - 0 (Proto-Oncogene Mas) RN - 0 (Proto-Oncogene Proteins) RN - 0 (Receptor, Angiotensin, Type 1) RN - 0 (Receptors, G-Protein-Coupled) RN - 8HW4YBZ748 (Oxidopamine) RN - 9041-90-1 (Angiotensin I) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - IJ3FUK8MOF (angiotensin I (1-7)) SB - IM MH - Angiotensin I/*pharmacology MH - Animals MH - Behavior, Animal/drug effects MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Corpus Striatum/drug effects/metabolism MH - Male MH - NF-kappa B/*metabolism MH - Oxidopamine MH - Parkinsonian Disorders/*drug therapy/metabolism MH - Peptide Fragments/*pharmacology MH - Phosphatidylinositol 3-Kinases/*metabolism MH - Proto-Oncogene Mas MH - Proto-Oncogene Proteins/*metabolism MH - Proto-Oncogene Proteins c-akt/*metabolism MH - Rats, Wistar MH - Receptor, Angiotensin, Type 1/*metabolism MH - Receptors, G-Protein-Coupled/*metabolism MH - Signal Transduction/drug effects OTO - NOTNLM OT - A-779 OT - Dopamine OT - NADPH oxidase OT - Neuroinflammation OT - Tyrosine hydroxylase EDAT- 2018/02/13 06:00 MHDA- 2019/01/10 06:00 CRDT- 2018/02/12 06:00 PHST- 2017/12/26 00:00 [received] PHST- 2018/01/30 00:00 [accepted] PHST- 2018/02/13 06:00 [pubmed] PHST- 2019/01/10 06:00 [medline] PHST- 2018/02/12 06:00 [entrez] AID - S0006-2952(18)30053-4 [pii] AID - 10.1016/j.bcp.2018.01.047 [doi] PST - ppublish SO - Biochem Pharmacol. 2018 May;151:126-134. doi: 10.1016/j.bcp.2018.01.047. Epub 2018 Feb 8.