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Xu Y, Geng Z, Sun Y, Zhu G, Xiao L, Wang Z, Li B, Liu X, Shi J, Song X, Hu J, Qi Q. Complanatuside A improves functional recovery after spinal cord injury through inhibiting JNK signaling-mediated microglial activation. Eur J Pharmacol 2024; 965:176287. [PMID: 38158110 DOI: 10.1016/j.ejphar.2023.176287] [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: 09/03/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND AND AIMS Complanatuside A (ComA) is a flavonoid-rich compound in Astragalus membranaceus that has anti-inflammatory and neuroprotective effects. In this study, we focused on the effect of ComA on spinal cord injury (SCI) in mice and explored its possible mechanisms. METHODS The SCI model was constructed using C57BL/6J mice, and the effect of ComA on motor function recovery in SCI mice was evaluated through the BMS (Basso Mouse Scale) and footprint test. The histological effects of ComA on SCI mice were evaluated by hematoxylin-eosin (H&E) staining, Luxol-fast blue (LFB) staining, and Nissl staining. In both in vivo and in vitro experiments, we detected the activation of microglia and the release of inflammatory factors through molecular experiments. Immunofluorescence and Western blotting confirmed that ComA can prevent neuronal apoptosis caused by activated microglia through the c-Jun N-terminal kinase (JNK) pathway. RESULTS Our research results confirm that ComA can improve motor function in mice after SCI. Our in vitro results indicate that ComA can inhibit the activation of BV2 cells and the release of proinflammatory mediators. In addition, ComA can prevent neuronal cell apoptosis caused by activated BV2 cells. Finally, we found that ComA works through the JNK signaling pathway. CONCLUSIONS ComA can accelerate the restoration of motor function in mice after SCI, possibly by reducing neuronal apoptosis via inhibition of JNK-related signaling pathways, a reduction in microglial activation, and inhibition of inflammatory factor release. Our data indicate that ComA is a promising drug candidate for improving functional recovery in patients with SCI.
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Affiliation(s)
- Yibo Xu
- School of Basic Medicine, Bengbu Medical University, Bengbu, Anhui, China; Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, China
| | - Zhijun Geng
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, China; Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, China
| | - Yang Sun
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, China
| | - Guoqing Zhu
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, China
| | - Linyu Xiao
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, China
| | - Zhiyuan Wang
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, China
| | - Bohan Li
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, China
| | - Xinyue Liu
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, China
| | - Jinran Shi
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, China
| | - Xue Song
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, China; Department of Central Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, China.
| | - Jianguo Hu
- Anhui Province Key Laboratory of Basic and Translational Research of Inflammation-related Diseases, Bengbu, China; Department of Clinical Laboratory, First Affiliated Hospital of Bengbu Medical University, Bengbu, China.
| | - Qi Qi
- School of Basic Medicine, Bengbu Medical University, Bengbu, Anhui, China; Key Laboratory of Tissue Transplantation, Bengbu Medical University, Bengbu, China.
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Tan L, Zheng ZY, Huang L, Jin Z, Li SL, Wu GS, Luo HR. Flavonol glycoside complanatoside A requires FOXO/DAF-16, NRF2/SKN-1, and HSF-1 to improve stress resistances and extend the life span of Caenorhabditis elegans. Front Pharmacol 2022; 13:931886. [PMID: 36071837 PMCID: PMC9441740 DOI: 10.3389/fphar.2022.931886] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/08/2022] [Indexed: 11/18/2022] Open
Abstract
Aging is associated with the increased risk of most age-related diseases in humans. Complanatoside A (CA) is a flavonoid compound isolated from the herbal medicine Semen Astragali Complanati. CA was reported to have potential anti-inflammatory and anti-oxidative activities. In this study, we investigated whether CA could increase the stress resistance capability and life span of Caenorhabditis elegans. Our results showed that CA could extend the longevity of C. elegans in a dosage-dependent manner, while 50 μM of CA has the best effect and increased the life span of C. elegans by about 16.87%. CA also improved the physiological functions in aging worms, such as enhanced locomotor capacity, and reduced the accumulation of the aging pigment. CA could also reduce the accumulation of toxic proteins (α-synuclein and β-amyloid) and delay the onset of neurodegenerative disorders, such as Alzheimer’s disease and Parkinson’s disease, in models of C. elegans. Further investigation has revealed that CA requires DAF-16/FOXO, SKN-1, and HSF-1 to extend the life span of C. elegans. CA could increase the antioxidation and detoxification activities regulated by transcription factor SKN-1 and the heat resistance by activating HSF-1 that mediated the expression of the chaperone heat shock proteins. Our results suggest that CA is a potential antiaging agent worth further research for its pharmacological mechanism and development for pharmaceutical applications.
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Affiliation(s)
- Lin Tan
- Key Laboratory for Aging and Regenerative Medicine, Department of Pharmacology School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
- Department of Pharmacy, Guang’an People’s Hospital, Guang’an, Sichuan, China
| | - Zhuo-Ya Zheng
- Key Laboratory for Aging and Regenerative Medicine, Department of Pharmacology School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Lv Huang
- Key Laboratory for Aging and Regenerative Medicine, Department of Pharmacology School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
| | - Zhong Jin
- Luzhou City Hospital of Traditional Chinese Medicine, Luzhou, Sichuan, China
| | - Su-Lian Li
- Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Gui-Sheng Wu
- Key Laboratory for Aging and Regenerative Medicine, Department of Pharmacology School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
- Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Luzhou, Sichuan, China
- *Correspondence: Gui-Sheng Wu, ; Huai-Rong Luo,
| | - Huai-Rong Luo
- Key Laboratory for Aging and Regenerative Medicine, Department of Pharmacology School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China
- Central Nervous System Drug Key Laboratory of Sichuan Province, Luzhou, Sichuan, China
- Key Laboratory of Medical Electrophysiology, Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, Sichuan, China
- *Correspondence: Gui-Sheng Wu, ; Huai-Rong Luo,
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Yao YF, Lin CZ, Liu FL, Zhang RJ, Zhang QY, Huang T, Zou YS, Wang MQ, Zhu CC. Identification and Pharmacokinetic Studies on Complanatuside and Its Major Metabolites in Rats by UHPLC-Q-TOF-MS/MS and LC-MS/MS. Molecules 2018; 24:molecules24010071. [PMID: 30585251 PMCID: PMC6337141 DOI: 10.3390/molecules24010071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 12/20/2018] [Accepted: 12/23/2018] [Indexed: 02/07/2023] Open
Abstract
The metabolic and pharmacokinetic studies on complanatuside, a quality marker of a Chinese materia medicatonic, Semen Astragali Complanati, were carried out. The UHPLC-Q-TOF/MS (ultra-high performance liquid chromatography coupled with electrospray ionization tandem quadrupole-time-of-flight mass spectrometry) method was applied to identify the metabolites of complanatuside in rat plasma, bile, stool, and urine after oral administration at the dosage of 72 mg/kg. Up to 34 metabolites (parent, 2 metabolites of the parent drug, and 31 metabolites of the degradation products) were observed, including processes of demethylation, hydroxylation, glucuronidation, sulfonation, and dehydration. The results indicated glucuronidation and sulfonation as major metabolic pathways of complanatuside in vivo. Meanwhile, a HPLC-MS method to quantify complanatuside and its two major metabolites—rhamnocitrin 3-O-β-glc and rhamnocitrin—in rat plasma for the pharmacokinetic analysis was developed and validated. The Tmax (time to reach the maximum drug concentration) of the above three compounds were 1 h, 3 h, and 5.3 h, respectively, while the Cmax (maximum plasma concentrations)were 119.15 ng/mL, 111.64 ng/mL, and 1122.18 ng/mL, and AUC(0-t) (area under the plasma concentration-time curve) was 143.52 µg/L·h, 381.73 µg/L·h, and 6540.14 µg/L·h, accordingly. The pharmacokinetic characteristics of complanatuside and its two metabolites suggested that complanatuside rapidly metabolized in vivo, while its metabolites—rhamnocitrin—was the main existent form in rat plasma after oral administration. The results of intracorporal processes, existing forms, and pharmacokinetic characteristics of complanatuside in rats supported its low bioavailability.
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Affiliation(s)
- Yu-Feng Yao
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, No. 12 Jichang Rd, Guangzhou 510405, China.
| | - Chao-Zhan Lin
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, No. 12 Jichang Rd, Guangzhou 510405, China.
| | - Fang-Le Liu
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, No. 12 Jichang Rd, Guangzhou 510405, China.
| | - Run-Jing Zhang
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, No. 12 Jichang Rd, Guangzhou 510405, China.
| | - Qiu-Yu Zhang
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, No. 12 Jichang Rd, Guangzhou 510405, China.
| | - Tao Huang
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, No. 12 Jichang Rd, Guangzhou 510405, China.
| | - Yuan-Sheng Zou
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, No. 12 Jichang Rd, Guangzhou 510405, China.
| | - Mei-Qi Wang
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, No. 12 Jichang Rd, Guangzhou 510405, China.
| | - Chen-Chen Zhu
- Institute of Clinical Pharmacology, Guangzhou University of Chinese Medicine, No. 12 Jichang Rd, Guangzhou 510405, China.
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