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Wang Y, Yin Y, Liu Y, Pei C, Shen Z, Zhao S, Jia N, Huang D, Wang X, Wu Y, Shi S, He Y, Wang Z. Notoginsenoside R1 treatment facilitated Nrf2 nuclear translocation to suppress ferroptosis via Keap1/Nrf2 signaling pathway to alleviated high-altitude myocardial injury. Biomed Pharmacother 2024; 175:116793. [PMID: 38776674 DOI: 10.1016/j.biopha.2024.116793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/15/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024] Open
Abstract
High-altitude myocardial injury (HAMI) represents a critical form of altitude illness for which effective drug therapies are generally lacking. Notoginsenoside R1, a prominent constituent derived from Panax notoginseng, has demonstrated various cardioprotective properties in models of myocardial ischemia/reperfusion injury, sepsis-induced cardiomyopathy, cardiac fibrosis, and myocardial injury. The potential utility of notoginsenoside R1 in the management of HAMI warrants prompt investigation. Following the successful construction of a HAMI model, a series of experimental analyses were conducted to assess the effects of notoginsenoside R1 at dosages of 50 mg/Kg and 100 mg/Kg. The results indicated that notoginsenoside R1 exhibited protective effects against hypoxic injury by reducing levels of CK, CK-MB, LDH, and BNP, leading to improved cardiac function and decreased incidence of arrhythmias. Furthermore, notoginsenoside R1 was found to enhance Nrf2 nuclear translocation, subsequently regulating the SLC7A11/GPX4/HO-1 pathway and iron metabolism to mitigate ferroptosis, thereby mitigating cardiac inflammation and oxidative stress induced by high-altitude conditions. In addition, the application of ML385 has confirmed the involvement of Nrf2 nuclear translocation in the therapeutic approach to HAMI. Collectively, the advantageous impacts of notoginsenoside R1 on HAMI have been linked to the suppression of ferroptosis via Nrf2 nuclear translocation signaling.
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Affiliation(s)
- Yilan Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
| | - Yongjun Yin
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
| | - Ying Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
| | - Caixia Pei
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
| | - Zherui Shen
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
| | - Sijing Zhao
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
| | - Nan Jia
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
| | - Demei Huang
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
| | - Xiaomin Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
| | - Yongcan Wu
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
| | - Shihua Shi
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
| | - Yacong He
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No.1166 Liutai Avenue, Chengdu, Sichuan 611137, China.
| | - Zhenxing Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, No. 39 Shi-er-qiao Road, Chengdu, Sichuan 610075, China.
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Zhong P, Xiu Y, Zhou K, Zhao H, Wang N, Zheng F, Yu S. Characterization of a novel thermophilic beta-glucosidase from Thermotoga sp. and its application in the transformation of notoginsenoside R1. 3 Biotech 2022; 12:289. [PMID: 36276459 PMCID: PMC9508303 DOI: 10.1007/s13205-022-03352-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 09/06/2022] [Indexed: 11/01/2022] Open
Abstract
A novel β-glucosidase (Thglu3) was identified from Thermotoga sp. which had biotransformation activity for notoginsenoside R1 (NR-R1). Sequence analysis of Thglu3 revealed that it could be classified into glycoside hydrolase family 3 (GH3). The gene encoding a 719-amino acid protein was cloned and expressed in Escherichia coli. The recombinant enzyme was purified, and its molecular weight was approximately 81 kDa. The recombinant Thglu3 exhibited an optimal activity at 75 °C and pH 6.4. The β-glucosidase had high selectivity for cleaving the outer glucose moiety at the C20 position of NR-R1, which produced the more pharmacologically active notoginsenoside R2 (NR-R2). Under the optimal reaction conditions for gram-scale production, 30 g NR-R1 was transformed to NR-R2 using 20 g crude enzyme at pH 6.4 and 75 °C within 1 h with a molar yield of 93%. This study was the first report of the highly efficient and selective gram-scale transformation of NR-R2 from NR-R1 by a thermophilic β-glucosidase.
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Affiliation(s)
- Peng Zhong
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117 China
| | - Yang Xiu
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117 China
| | - Kailu Zhou
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117 China
| | - Huanxi Zhao
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117 China
| | - Nan Wang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117 China
| | - Fei Zheng
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117 China
| | - Shanshan Yu
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117 China
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Zhang Y, Song Y, Wang C, Jiang J, Liu S, Bai Q, Li L, Jin H, Jin Y, Yan G. Panax notoginseng saponin R1 attenuates allergic rhinitis through AMPK/Drp1 mediated mitochondrial fission. Biochem Pharmacol 2022; 202:115106. [DOI: 10.1016/j.bcp.2022.115106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/19/2022] [Accepted: 05/19/2022] [Indexed: 11/02/2022]
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Michel M, Goldman M, Peart R, Martinez M, Reddy R, Lucke-Wold B. Spinal Cord Injury: A Review of Current Management Considerations and Emerging Treatments. JOURNAL OF NEUROLOGICAL SCIENCES AND RESEARCH 2021; 2:14. [PMID: 36037050 PMCID: PMC9417199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Traumatic spinal cord injuries can have devastating outcomes for patients. In this focused review, we discuss the epidemiology of spinal cord injuries, associated neurologic exam findings, and primary and secondary injury progression. We then delve into the emerging treatment approaches and relevance to improving outcomes. The disease is multifactorial and has many management considerations. This concise user-friendly resource can help guide clinicians caring for these patients. Also, it points to the need for continued scientific discovery and improved pharmaceutical and device innovations.
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Affiliation(s)
- Michelot Michel
- Department of Neurosurgery, University of Florida, Gainesvillec, USA
| | - Matthew Goldman
- Department of Neurosurgery, University of Florida, Gainesvillec, USA
| | - Rodeania Peart
- Department of Neurosurgery, University of Florida, Gainesvillec, USA
| | - Melanie Martinez
- Department of Neurosurgery, University of Florida, Gainesvillec, USA
| | - Ramya Reddy
- Department of Neurosurgery, University of Florida, Gainesvillec, USA
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