PMID- 35696798 OWN - NLM STAT- MEDLINE DCOM- 20220623 LR - 20220624 IS - 1618-095X (Electronic) IS - 0944-7113 (Linking) VI - 103 DP - 2022 Aug TI - Autophagy activation by Terminalia chebula Retz. reduce Abeta generation by shifting APP processing toward non-amyloidogenic pathway in APPswe transgenic SH-SY5Y cells. PG - 154245 LID - S0944-7113(22)00324-5 [pii] LID - 10.1016/j.phymed.2022.154245 [doi] AB - BACKGROUND: Alzheimer's disease (AD) is the most common neurodegenerative disease. Deposition of amyloid beta plaques (Abeta) is a central hallmark of AD. Accumulating evidence suggest that shifting amyloid precursor protein (APP) metabolism pathway to non-amyloidogenic ways and inducing autophagy play key roles in AD pathology. In published reports, there is no research on the APP metabolic process of Terminalia chebula Retz. (T. Chebula). PURPOSE: The study aims to assess the effects of T. Chebula in AD transgenic SH-SY5Y cells to determine its underlying mechanisms on reducing Abeta level by regulating APP metabolic process. METHODS: The effects of T. Chebula water extract (TWE) on APPswe transgenic SH-SY5Y cells were analyzed by cell viability. ELISA used to quantify extracellular Abeta(1-40) and Abeta(1-42) generations. Western blot and RT-PCR assays were chosen to detect the expression of proteins and genes. The acridine orange (AO) stain was used to label autophagic-vesicles. RESULTS: Treatment with TWE significantly suppressed the Abeta(1-40) and Abeta(1-42) generations of APPswe transgenic cells. TWE inhibited amyloidogenic pathway by reducing BACE1 expression, and promote non-amyloidogenic pathway by inducing ADAM10 level of APP metabolism. Additionally, TWE induced autophagy in APPswe transgenic cells involved in APP metabolism to shift the balance to non-amyloidogenic pathway. CONCLUSION: In summary, our finding first time expounded that TWE can inhibit the generation of Abeta(1-40) and Abeta(1-42) in APPswe transgenic SH-SY5Y cells, which were regulated APP metabolism tends to non-amyloid metabolism pathway and mediated by autophagy. The results presented a novel finding for AD treatment of traditional natural medicines. CI - Copyright (c) 2022 Elsevier GmbH. All rights reserved. FAU - Zhao, Longhe AU - Zhao L AD - School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China. FAU - Yue, Zhaorong AU - Yue Z AD - School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China. FAU - Wang, Yanni AU - Wang Y AD - School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China. FAU - Wang, Jiatao AU - Wang J AD - School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China. FAU - Ullah, Inam AU - Ullah I AD - Institute of Microbiology, School of Life Sciences, Lanzhou University, Tianshui Road No. 222, Lanzhou, China. FAU - Muhammad, Fahim AU - Muhammad F AD - Institute of Microbiology, School of Life Sciences, Lanzhou University, Tianshui Road No. 222, Lanzhou, China. FAU - Zhou, Yongtao AU - Zhou Y AD - Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China. FAU - Zhu, Hongmei AU - Zhu H AD - School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China. FAU - Wang, Xin AU - Wang X AD - School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China. Electronic address: wx@lzu.edu.cn. FAU - Li, Hongyu AU - Li H AD - School of Pharmacy, Lanzhou University, Donggang Road No. 199, Lanzhou, China; Institute of Microbiology, School of Life Sciences, Lanzhou University, Tianshui Road No. 222, Lanzhou, China. Electronic address: lihy@lzu.edu.cn. LA - eng PT - Journal Article DEP - 20220606 PL - Germany TA - Phytomedicine JT - Phytomedicine : international journal of phytotherapy and phytopharmacology JID - 9438794 RN - 0 (Amyloid beta-Peptides) RN - 0 (Amyloid beta-Protein Precursor) RN - EC 3.4.- (Amyloid Precursor Protein Secretases) RN - EC 3.4.23.- (Aspartic Acid Endopeptidases) SB - IM MH - *Alzheimer Disease/metabolism MH - Amyloid Precursor Protein Secretases/metabolism MH - Amyloid beta-Peptides/metabolism MH - Amyloid beta-Protein Precursor/genetics MH - Aspartic Acid Endopeptidases/genetics MH - Autophagy MH - Humans MH - *Neuroblastoma/drug therapy/metabolism MH - *Neurodegenerative Diseases MH - *Terminalia OTO - NOTNLM OT - ADAM10 OT - Autophagy OT - Abeta OT - BACE1 OT - Non-amyloidogenic pathway OT - Terminalia chebula Retz. EDAT- 2022/06/14 06:00 MHDA- 2022/06/24 06:00 CRDT- 2022/06/13 18:16 PHST- 2021/10/18 00:00 [received] PHST- 2022/05/18 00:00 [revised] PHST- 2022/06/05 00:00 [accepted] PHST- 2022/06/14 06:00 [pubmed] PHST- 2022/06/24 06:00 [medline] PHST- 2022/06/13 18:16 [entrez] AID - S0944-7113(22)00324-5 [pii] AID - 10.1016/j.phymed.2022.154245 [doi] PST - ppublish SO - Phytomedicine. 2022 Aug;103:154245. doi: 10.1016/j.phymed.2022.154245. Epub 2022 Jun 6.