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Dong Z, Xiong Y, Zhang R, Qiu Y, Meng F, Liao Z, Lan X, Chen M. Ptehosides A-I: Nine undescribed iridoids with in vitro cytotoxicity from the whole plant of Pterocephalus hookeri (C.B. Clarke) Höeck. PHYTOCHEMISTRY 2024; 223:114144. [PMID: 38754799 DOI: 10.1016/j.phytochem.2024.114144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/18/2024]
Abstract
Nine previously undescribed iridoids, ptehosides A-I (1-9), together with 12 known ones (10-21), were isolated from Pterocephalus hookeri (C.B. Clarke) Höeck. Their structures were elucidated using various spectroscopic methods including HR-ESI-MS, NMR, UV, IR and CD, etc. The cytotoxic activities of all isolates were evaluated using MTT method in three human cancer cell lines (Caco2, Huh-7, and SW982). As result, compound 9 exhibited substantial inhibitory activity on Caco2, Huh-7, and SW982 cells with IC50 values of 1.17 ± 0.05, 1.15 ± 0.05 and 1.14 ± 0.04 μM, respectively. A preliminary mechanism study showed that 9 arrested the cell cycle of SW982 cells in the G0/G1 phase and induced apoptosis by upregulating Bax expression and downregulating Bcl-2 expression.
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Affiliation(s)
- Zhaoyue Dong
- Chongqing Key Laboratory of New Drug Screening from Traditional Chinese Medicine, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, SWU-TAAHC Medicinal Plant Joint R&D Centre, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China; Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China
| | - Yiran Xiong
- Chongqing Key Laboratory of New Drug Screening from Traditional Chinese Medicine, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, SWU-TAAHC Medicinal Plant Joint R&D Centre, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China
| | - Ruifeng Zhang
- Chongqing Key Laboratory of New Drug Screening from Traditional Chinese Medicine, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, SWU-TAAHC Medicinal Plant Joint R&D Centre, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China
| | - Yinda Qiu
- Chongqing Key Laboratory of New Drug Screening from Traditional Chinese Medicine, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, SWU-TAAHC Medicinal Plant Joint R&D Centre, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China; Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China
| | - Fancheng Meng
- Chongqing Key Laboratory of New Drug Screening from Traditional Chinese Medicine, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, SWU-TAAHC Medicinal Plant Joint R&D Centre, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China; Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China
| | - Zhihua Liao
- Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, School of Life Sciences, Southwest University, Chongqing, 400715, PR China
| | - Xiaozhong Lan
- TAAHC-SWU Medicinal Plant R&D Center, Xizang Agriculture and Animal Husbandry College, Nyingchi, Tibet, 860000, PR China
| | - Min Chen
- Chongqing Key Laboratory of New Drug Screening from Traditional Chinese Medicine, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City & Southwest University, SWU-TAAHC Medicinal Plant Joint R&D Centre, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China; Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, PR China; Chongqing Key Laboratory of High Active Traditional Chinese Drug Delivery System, Chongqing Medical and Pharmaceutical College, Chongqing, 401331, PR China.
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Wang Z, Li F, Aga EB, Liang X, He C, Yin L, Xu F, Li H, Tang H, Lv C. 'Pterocephalodes hookeri-Onosma hookeri' decoction protects against LPS-induced pulmonary inflammation via inhibiting TLR4/ NF-κB signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116918. [PMID: 37453619 DOI: 10.1016/j.jep.2023.116918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE As the second-largest traditional medical system in China, Tibetan medicine has a long history and abundant resources. To promote the development of the Tibetan medicine industry, it is essential to study the pharmacological activities of Tibetan medicine based on its traditional usage methods. AIM OF THE STUDY Pneumonia has been a worldwide health problem with high morbidity and mortality rates, especially in the context of the COVID-19 epidemic. Given the unique advantages of traditional Tibetan medicine in treating pulmonary diseases, further research is warranted to develop potential anti-pneumonia drugs. MATERIALS AND METHODS In our study, the potential combined decoction from traditional Tibetan medicine was determined by the data mining method. The antioxidant activity in vitro, anti-inflammatory effects on the macrophage cell model, as well as the anti-pulmonary inflammation effects on the LPS-induced mice model, have been explored to investigate the potential anti-pneumonia role of the decoction. Additionally, we conducted network pharmacology analysis to identify the potential targets against pneumonia, which were further confirmed by western blot assays. RESULTS Following the combination therapy of Pterocephalodes hookeri (C.B.Clarke) V.Mayer & Ehrend. and Onosma hookeri var. longiflora (Duthie) A.V.Duthie ex Stapf ('P-O'), the clearance of DPPH radical and the total reducing power were all improved, as well as alleviated the toxicity. On the in vitro level, 'P-O' pre-treatment reduced the secretion of NO, TNF-α, IL-6, and IL-1β in LPS-stimulated RAW264.7 cells, while promoting the concentration of IL-10. Meanwhile, on the in vivo level, the 'P-O' pre-treating also could alleviate LPS-induced pulmonary inflammation by reducing the pulmonary edema and leakage of the lung microvascular, improving the pathological change of lung tissue and regulating the cytokines content in bronchoalveolar lavage fluid (BALF). Furthermore, network pharmacology analysis revealed that the mechanism of 'P-O' in treating pneumonia in a multi-component, multi-target, and multi-pathway network, with the TLR4/NF-κB signaling pathway playing a crucial role, as demonstrated by the western blot assay results. CONCLUSION In summary, the combination therapy of 'P-O' exhibited good antioxidant activity and anti-inflammatory activity in vitro, as well as a therapeutic effect against pulmonary inflammation in vivo. These findings provide evidence for the clinical application of 'P-O' and offer new approaches for treating pneumonia.
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Affiliation(s)
- Zhenyu Wang
- Natural Medicine Research Center, Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Fanglong Li
- Natural Medicine Research Center, Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Er-Bu Aga
- Medical College, Tibet University, Lasa, 850000, China.
| | - Xiaoxia Liang
- Natural Medicine Research Center, Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Changliang He
- Natural Medicine Research Center, Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Lizi Yin
- Natural Medicine Research Center, Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Funeng Xu
- Natural Medicine Research Center, Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Haohuan Li
- Natural Medicine Research Center, Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Huaqiao Tang
- Natural Medicine Research Center, Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Cheng Lv
- Natural Medicine Research Center, Department of Pharmacy, Sichuan Agricultural University, Chengdu, 611130, China.
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Zhang K, Wang L, Peng J, Sangji K, Luo Y, Zeng Y, Zeweng Y, Fan G. Traditional Tibetan medicine to fight against COVID-19: Basic theory and therapeutic drugs. Front Pharmacol 2023; 14:1098253. [PMID: 36874035 PMCID: PMC9978713 DOI: 10.3389/fphar.2023.1098253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/31/2023] [Indexed: 02/18/2023] Open
Abstract
The Coronavirus Diseases 2019 (COVID-19) has been rapidly spreading globally and has caused severe harm to the health of people and a substantial social burden. In response to this situation, experts around the world have considered various treatments, including the use of traditional medicine. Traditional Tibetan medicine (TTM), one of the traditional medicines in China, has played an important role in the treatment of infectious diseases in history. It has formed a solid theoretical foundation and accumulated rich experience in the treatment of infectious diseases. In this review, we provide a comprehensive introduction to the basic theory, treatment strategies, and commonly used drugs of TTM for the treatment of COVID-19. In addition, the efficacies and potential mechanisms of these TTM drugs against COVID-19 are discussed based on available experimental data. This review may provide important information for the basic research, clinical application and drug development of traditional medicines for the treatment of COVID-19 or other infectious diseases. More pharmacological studies are needed to reveal the therapeutic mechanisms and active ingredients of TTM drugs in the treatment of COVID-19.
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Affiliation(s)
- Kun Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lijie Wang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiayan Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kangzhuo Sangji
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuting Luo
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yujiao Zeng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yongzhong Zeweng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Gang Fan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Xu DF, Miao L, Zhang JS, Zhang H. Bis-iridoids from Pterocephalus hookeri and evaluation of their anti-inflammatory activity. Chem Biodivers 2022; 19:e202100952. [PMID: 35166030 DOI: 10.1002/cbdv.202100952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 02/14/2022] [Indexed: 11/05/2022]
Abstract
Four new secoiridoid-iridoid heterodimers, pterocenoids E -H ( 1 - 4 ), together with a known analogue ( 5 ), were separated from the whole plants of Pterocephalus hookeri . Their structures were characterized by detailed spectroscopic analyses and NMR comparison with reported data for known analogues. Pterocenoid E ( 1 ) represents the first bis-iridoid example incorporating a rare trans -fused monomeric unit , and the C(8) configuration in 5 was corrected to be reversed to the original assignment. Among all the isolates, compound 5 not only showed moderate inhibition against the nitric oxide production (IC 50 = 36.0 ± 4.3 mM ) but also dose-dependently suppressed the secretion of an important pro-inflammatory cytokine TNF-a, in lipopolysaccharide-induced RAW264.7 cells.
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Affiliation(s)
- De-Feng Xu
- University of Jinan, College of Life science and Technology, Nanxinzhuang Road 336, 250022, Jinan, CHINA
| | - Lei Miao
- University of Jinan, College of Life science and Technology, Nanxinzhuang Road 336, 250022, Jinan, CHINA
| | - Jun-Sheng Zhang
- University of Jinan, College of Life science and Technology, Nanxinzhuang Road 336, 250022, Jinan, CHINA
| | - Hua Zhang
- University of Jinan, College of Life science and Technology, Nanxinzhuang Road 336, 250022, Jinan, CHINA
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