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Liu T, Zhou J, Cui H, Li P, Luo J, Li T, He F, Wang Y, Tang T. iTRAQ-based quantitative proteomics reveals the neuroprotection of rhubarb in experimental intracerebral hemorrhage. JOURNAL OF ETHNOPHARMACOLOGY 2019; 232:244-254. [PMID: 30502478 DOI: 10.1016/j.jep.2018.11.032] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 10/26/2018] [Accepted: 11/20/2018] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rhubarb is a traditional Chinese medicine(TCM), that possesses neuroprotective, anti-inflammatory, antibacterial, antioxidative, purgative and anticancer properties, and has been used to treat intracerebral hemorrhage (ICH) and many other diseases. AIMS OF THE STUDY This study aimed to investigate the changes of brain protein in ICH rats treated with rhubarb and to explore the multi-target mechanism of rhubarb in the treatment of ICH via bioinformatics analysis of differentially expressed proteins (DEPs). MATERIALS AND METHODS Rats were subjected to collagenase-induced ICH and then treated orally with 3 or 12 g/kg rhubarb daily for 2 days following ICH. After sacrifice, total protein of brain tissue was extracted, and isobaric tag for relative and absolute quantification (iTRAQ)-based liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis was employed to quantitatively identify of the DEPs in two treatment groups compared with the vehicle group. The DEPs were analyzed by Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) and STRING databases. Bioinformatics Analysis Tool for Molecular mechanism of TCM (BATMAN-TCM) was used to predict the target of rhubarb and western blotting was used for verification. RESULTS In total, 1356 proteins were identified with a 1% false discovery rate (FDR). Among them, 55 DEPs were significantly altered in the sham, vehicle, low dose rhubarb group (LDR, 3 g/kg), and high dose rhubarb group (HDR, 12 g/kg). Enrichment analysis of GO annotations indicated that rhubarb mainly regulated expression of some neuron projection proteins involved in the response to drug and nervous system development. The dopaminergic synapse pathway was found to be the most significant DEP in the combined analysis of the KEGG and BATMAN-TCM databases. Based on the results of the STRING analysis, oxidative stress (OS), calcium binding protein regulation, vascularization, and energy metabolism were important in the rhubarb therapeutic process. CONCLUSION Rhubarb achieves its effects mainly through the dopaminergic synapse pathway in ICH treatment. The ICH-treating mechanisms of rhubarb may also involve anti-OS, calcium binding protein regulation, angiogenic regulation, and energy metabolism improvement. This study adds new evidence to clinical applications of rhubarb for ICH.
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Affiliation(s)
- Tao Liu
- Institute of Integrative Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, Hunan, China; Department of Gerontology, Traditional Chinese Medicine Hospital Affiliated to Xinjiang Medical University, 830000 Urumqi, China
| | - Jing Zhou
- Institute of Integrative Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, Hunan, China
| | - Hanjin Cui
- Institute of Integrative Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, Hunan, China
| | - Pengfei Li
- Institute of Integrative Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, Hunan, China
| | - Jiekun Luo
- Institute of Integrative Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, Hunan, China
| | - Teng Li
- Institute of Integrative Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, Hunan, China
| | - Feng He
- Department of Hepatobiliary Surgery, Xiangya Hospital, Central South University, 410008 Changsha, China
| | - Yang Wang
- Institute of Integrative Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, Hunan, China; National Research Center of geriatrics, Xiangya Hospital, Central South University, China.
| | - Tao Tang
- Institute of Integrative Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, Hunan, China; National Research Center of geriatrics, Xiangya Hospital, Central South University, China.
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Serum Proteome Alterations in Patients with Cognitive Impairment after Traumatic Brain Injury Revealed by iTRAQ-Based Quantitative Proteomics. BIOMED RESEARCH INTERNATIONAL 2017; 2017:8572509. [PMID: 28251161 PMCID: PMC5303854 DOI: 10.1155/2017/8572509] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 12/01/2016] [Accepted: 12/13/2016] [Indexed: 12/26/2022]
Abstract
Background. Cognitive impairment is the leading cause of traumatic brain injury- (TBI-) related disability; however, the underlying pathogenesis of this dysfunction is not completely understood. Methods. Using an isobaric tagging for relative and absolute quantitation- (iTRAQ-) based quantitative proteomic approach, serum samples from healthy control subjects, TBI patients with cognitive impairment, and TBI patients without cognitive impairment were analysed to identify differentially expressed proteins (DEPs) related to post-TBI cognitive impairment. In addition, DEPs were further analysed using bioinformatic platforms and validated using enzyme-linked immunosorbent assays (ELISA). Results. A total of 56 DEPs were identified that were specifically related to TBI-induced cognitive impairment. Bioinformatic analysis revealed that a wide variety of cellular and metabolic processes and some signaling pathways were involved in the pathophysiology of cognitive deficits following TBI. Five randomly selected DEPs were validated using ELISA in an additional 105 cases, and the results also supported the experimental findings. Conclusions. Despite limitations, our findings will facilitate further studies of the pathological mechanisms underlying TBI-induced cognitive impairment and provide new methods for the research and development of neuroprotective agents. However, further investigation on a large cohort is warranted.
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