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Zhao J, Wang J, Zhao K, Zhang Y, Hu W. Protopanaxadiols Eliminate Behavioral Impairments and Mitochondrial Dysfunction in Parkinson's Disease Mice Model. Neurochem Res 2024; 49:1751-1761. [PMID: 38551796 PMCID: PMC11144128 DOI: 10.1007/s11064-024-04132-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/15/2024] [Accepted: 02/17/2024] [Indexed: 06/02/2024]
Abstract
Currently, there are no effective therapies to cure Parkinson's disease (PD), which is the second most common neurodegenerative disease primarily characterized by motor dysfunction and degeneration of dopaminergic neurons in the substantia nigra pars compacta (SNc). Protopanaxadiols (PPDs), including 20 (R)- protopanaxadiol (R-PPD) and 20 (S)- protopanaxadiol (S-PPD), are main metabolites of ginsenosides. The role of ginsenosides in neurodegenerative diseases has been thoroughly studied, however, it is unknown whether PPDs can attenuate behavioral deficits and dopaminergic neuron injury in PD model mice to date. Here, we administered PPDs to MPTP-induced PD model mice and monitored the effects on behavior and dopaminergic neurons to investigate the effects of R-PPD and S-PPD against PD. Our results showed that R-PPD and S-PPD (at a dose of 20 mg/kg, i.g.) treatment alleviated MPTP (30 mg/kg, i.p.) induced behavioral deficits. Besides, R-PPD and S-PPD protected MPP+-induced neuron injury and mitochondrial dysfunction, and reduced the abnormal expression of Cyt C, Bax, caspase-3 and Bcl-2. These findings demonstrate that R-PPD and S-PPD were potentially useful to ameliorate PD.
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Affiliation(s)
- Jindong Zhao
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, People's Republic of China
- College of Modern Biomedical Industry, Kunming Medical University, Kunming, 650500, People's Republic of China
| | - Ji Wang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, People's Republic of China
- School of Chinese Materia Medica &Yunnan Key Laboratory of Southern Medicine Utilization, Yunnan University of Chinese Medicine, Kunming, 650500, People's Republic of China
| | - Kunying Zhao
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, People's Republic of China
- College of Modern Biomedical Industry, Kunming Medical University, Kunming, 650500, People's Republic of China
| | - Yuxiao Zhang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, People's Republic of China
- College of Modern Biomedical Industry, Kunming Medical University, Kunming, 650500, People's Republic of China
| | - Weiyan Hu
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, People's Republic of China.
- College of Modern Biomedical Industry, Kunming Medical University, Kunming, 650500, People's Republic of China.
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Zhang N, Nao J, Zhang S, Dong X. Novel insights into the activating transcription factor 4 in Alzheimer's disease and associated aging-related diseases: Mechanisms and therapeutic implications. Front Neuroendocrinol 2024; 74:101144. [PMID: 38797197 DOI: 10.1016/j.yfrne.2024.101144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 05/16/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Ageing is inherent to all human beings, most mechanistic explanations of ageing results from the combined effects of various physiological and pathological processes. Additionally, aging pivotally contributes to several chronic diseases. Activating transcription factor 4 (ATF4), a member of the ATF/cAMP response element-binding protein family, has recently emerged as a pivotal player owing to its indispensable role in the pathophysiological processes of Alzheimer's disease and aging-related diseases. Moreover, ATF4 is integral to numerous biological processes. Therefore, this article aims to comprehensively review relevant research on the role of ATF4 in the onset and progression of aging-related diseases, elucidating its potential mechanisms and therapeutic approaches. Our objective is to furnish scientific evidence for the early identification of risk factors in aging-related diseases and pave the way for new research directions for their treatment. By elucidating the signaling pathway network of ATF4 in aging-related diseases, we aspire to gain a profound understanding of the molecular and cellular mechanisms, offering novel strategies for addressing aging and developing related therapeutics.
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Affiliation(s)
- Nan Zhang
- Department of Neurology, the Seventh Clinical College of China Medical University, No. 24 Central Street, Xinfu District, Fushun 113000, Liaoning, China.
| | - Jianfei Nao
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110000, Liaoning, China.
| | - Shun Zhang
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110000, Liaoning, China.
| | - Xiaoyu Dong
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang 110000, Liaoning, China.
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Nakhjavani M, Smith E, Yeo K, Tomita Y, Price TJ, Yool A, Townsend AR, Hardingham JE. Differential antiangiogenic and anticancer activities of the active metabolites of ginsenoside Rg3. J Ginseng Res 2024; 48:171-180. [PMID: 38465222 PMCID: PMC10920002 DOI: 10.1016/j.jgr.2021.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/18/2021] [Accepted: 05/24/2021] [Indexed: 01/09/2023] Open
Abstract
Background Epimers of ginsenoside Rg3 (Rg3) have a low bioavailability and are prone to deglycosylation, which produces epimers of ginsenoside Rh2 (S-Rh2 and R-Rh2) and protopanaxadiol (S-PPD and R-PPD). The aim of this study was to compare the efficacy and potency of these molecules as anti-cancer agents. Methods Crystal violet staining was used to study the anti-proliferatory action of the molecules on a human epithelial breast cancer cell line, MDA-MB-231, and human umbilical vein endothelial cells (HUVEC) and compare their potency. Cell death and cell cycle were studied using flow cytometry and mode of cell death was studied using live cell imaging. Anti-angiogenic effects of the drug were studied using loop formation assay. Molecular docking showed the interaction of these molecules with vascular endothelial growth factor receptor-2 (VEGFR2) and aquaporin (AQP) water channels. VEGF bioassay was used to study the interaction of Rh2 with VEGFR2, in vitro. Results HUVEC was the more sensitive cell line to the anti-proliferative effects of S-Rh2, S-PPD and R-PPD. The molecules induced necroptosis/necrosis in MDA-MB-231 and apoptosis in HUVEC. S-Rh2 was the most potent inhibitor of loop formation. In silico molecular docking predicted a good binding score between Rh2 or PPD and the ATP-binding pocket of VEGFR2. VEGF bioassay showed that Rh2 was an allosteric modulator of VEGFR2. In addition, SRh2 and PPD had good binding scores with AQP1 and AQP5, both of which play roles in cell migration and proliferation. Conclusion The combination of these molecules might be responsible for the anti-cancer effects observed by Rg3.
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Affiliation(s)
- Maryam Nakhjavani
- Molecular Oncology, Basil Hetzel Institute for Translational Health Research, The Queen Elizabeth Hospital, Woodville South, SA, Australia
| | - Eric Smith
- Molecular Oncology, Basil Hetzel Institute for Translational Health Research, The Queen Elizabeth Hospital, Woodville South, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Kenny Yeo
- Molecular Oncology, Basil Hetzel Institute for Translational Health Research, The Queen Elizabeth Hospital, Woodville South, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Yoko Tomita
- Molecular Oncology, Basil Hetzel Institute for Translational Health Research, The Queen Elizabeth Hospital, Woodville South, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
- Medical Oncology Unit, The Queen Elizabeth Hospital, Woodville South, SA, Australia
| | - Timothy J. Price
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
- Medical Oncology Unit, The Queen Elizabeth Hospital, Woodville South, SA, Australia
| | - Andrea Yool
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
| | - Amanda R. Townsend
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
- Medical Oncology Unit, The Queen Elizabeth Hospital, Woodville South, SA, Australia
| | - Jennifer E. Hardingham
- Molecular Oncology, Basil Hetzel Institute for Translational Health Research, The Queen Elizabeth Hospital, Woodville South, SA, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
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Lee SG, Cho KH, Nguyen TTL, Vo DK, Chae YJ, Maeng HJ. Inhibitory effect of 20(S)-protopanaxadiol on cytochrome P450: Potential of its pharmacokinetic interactions in vivo. Biomed Pharmacother 2022; 153:113514. [DOI: 10.1016/j.biopha.2022.113514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 07/24/2022] [Accepted: 08/02/2022] [Indexed: 12/28/2022] Open
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Li M, Wang X, Wang Y, Bao S, Chang Q, Liu L, Zhang S, Sun L. Strategies for Remodeling the Tumor Microenvironment Using Active Ingredients of Ginseng-A Promising Approach for Cancer Therapy. Front Pharmacol 2022; 12:797634. [PMID: 35002732 PMCID: PMC8727883 DOI: 10.3389/fphar.2021.797634] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/06/2021] [Indexed: 12/21/2022] Open
Abstract
The tumor microenvironment (TME) plays a key role in promoting the initiation and progression of tumors, leading to chemoradiotherapy resistance and immunotherapy failure. Targeting of the TME is a novel anti-tumor therapeutic approach and is currently a focus of anti-tumor research. Panax ginseng C. A. Meyer (ginseng), an ingredient of well-known traditional Asia medicines, exerts beneficial anti-tumor effects and can regulate the TME. Here, we present a systematic review that describes the current status of research efforts to elucidate the functions and mechanisms of ginseng active components (including ginsenosides and ginseng polysaccharides) for achieving TME regulation. Ginsenosides have variety effects on TME, such as Rg3, Rd and Rk3 can inhibit tumor angiogenesis; Rg3, Rh2 and M4 can regulate the function of immune cells; Rg3, Rd and Rg5 can restrain the stemness of cancer stem cells. Ginseng polysaccharides (such as red ginseng acidic polysaccharides and polysaccharides extracted from ginseng berry and ginseng leaves) can regulate TME mainly by stimulating immune cells. In addition, we propose a potential mechanistic link between ginseng-associated restoration of gut microbiota and the tumor immune microenvironment. Finally, we describe recent advances for improving ginseng efficacy, including the development of a nano-drug delivery system. Taken together, this review provides novel perspectives on potential applications for ginseng active ingredients as anti-cancer adjuvants that achieve anti-cancer effects by reshaping the tumor microenvironment.
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Affiliation(s)
- Mo Li
- Department of Radiotherapy, The Second Hospital of Jilin University, Changchun, China.,Department of Thyroid Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Xin Wang
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Ying Wang
- Department of Breast Surgery, The Second Hospital of Jilin University, Changchun, China
| | - Shunchao Bao
- Department of Radiotherapy, The Second Hospital of Jilin University, Changchun, China
| | - Qing Chang
- Department of Radiotherapy, The Second Hospital of Jilin University, Changchun, China
| | - Linlin Liu
- Department of Radiotherapy, The Second Hospital of Jilin University, Changchun, China
| | - Shuai Zhang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Liwei Sun
- Research Center of Traditional Chinese Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China
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Arafa ESA, Refaey MS, Abd El-Ghafar OAM, Hassanein EHM, Sayed AM. The promising therapeutic potentials of ginsenosides mediated through p38 MAPK signaling inhibition. Heliyon 2021; 7:e08354. [PMID: 34825082 PMCID: PMC8605069 DOI: 10.1016/j.heliyon.2021.e08354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/06/2021] [Accepted: 11/05/2021] [Indexed: 12/21/2022] Open
Abstract
The p38 mitogen-activated protein kinases (p38 MAPK) is a 38kD polypeptide recognized as the target for many potential anti-inflammatory agents. Accumulating evidence indicates that p38 MAPK could perform many roles in human disease pathophysiology. Therefore, great therapeutic benefits can be attained from p38 MAPK inhibitors. Ginseng is an exceptionally valued medicinal plant of the family Araliaceae (Panax genus). Recently, several studies targeted the therapeutic effects of purified individual ginsenoside, the most significant active ingredient of ginseng, and studied its particular molecular mechanism(s) of action rather than whole-plant extracts. Interestingly, several ginsenosides: ginsenosides compound K, F1, Rb1, Rb3, Rc, Rd, Re, Rf, Rg1, Rg2, Rg3, Rg5, Rh1, Rh2, Ro, notoginsenoside R1, and protopanaxadiol have shown to possess great therapeutic potentials mediated by their ability to downregulate p38 MAPK signaling in different cell lines and experimental animal models. Our review compiles the research findings of various ginsenosides as potent anti-inflammatory agents, highlighting the crucial role of p38 MAPK suppression in their pharmacological actions. In addition, in silico studies were conducted to explore the probable binding of these ginsenosides to p38 MAPK. The results obtained proposed p38 MAPK involvement in the beneficial pharmacological activities of ginsenosides in different ailments. p38 MAPK plays many roles in human disease pathophysiology. Therefore, great therapeutic benefits can be attained from p38 MAPK inhibitors. Several ginsenosides showed to possess great therapeutic potentials mediated by its ability to downregulate p38 MAPK signaling. in silico studies were conducted to explore the binding of these ginsenosides to p38 MAPK and evidenced the promising their inhibitory effect.
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Affiliation(s)
- El-Shaimaa A Arafa
- Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, United Arab Emirates.,Center of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Mohamed S Refaey
- Department of Pharmacognosy, Faculty of Pharmacy, University of Sadat City, Sadat City, Menoufiya, 32958, Egypt
| | - Omnia A M Abd El-Ghafar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Nahda University, Beni-Suef, Egypt
| | - Emad H M Hassanein
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Ahmed M Sayed
- Biochemistry Laboratory, Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
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Feng L, Li M, Hu X, Li Y, Zhu L, Chen M, Wei Q, Xu W, Zhou Q, Wang W, Chen D, Wang X, Jin H. CK1δ stimulates ubiquitination-dependent proteasomal degradation of ATF4 to promote chemoresistance in gastric Cancer. Clin Transl Med 2021; 11:e587. [PMID: 34709767 PMCID: PMC8516343 DOI: 10.1002/ctm2.587] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 08/25/2021] [Accepted: 09/14/2021] [Indexed: 12/03/2022] Open
Abstract
Chemoresistance remains a major obstacle to successful cancer therapy, especially for advanced cancers. It used to be recognised as a stable outcome resulting from genetic changes. However, recent studies showed that chemoresistance can also be unstable and reversible with the involvement of non-genetic alterations. In the present study, we found that activating transcription factor 4 (ATF4) is downregulated in chemoresistant gastric cancer cells. The over-expression of ATF4 reversed chemoresistance by activating CHOP transcription to enhance drug-induced apoptosis, and vice versa. Moreover, casein kinase 1 delta (CK1δ) was identified as the kinase responsible for ATF4-S219 phosphorylation, which triggered βTrCP-mediated ATF4 polyubiquitination to promote its proteasomal degradation subsequently. Interestingly, drug withdrawal gradually restored chemosensitivity as well as ATF4 expression in chemoresistant cells, highlighting the dependence of dynamic drug resistance on ATF4 protein expression. In line with these findings, the inhibition of ATF4 protein degradation by CK1δ or proteasome inhibitors overcame chemoresistance both in vitro and in vivo. Taken together, these results indicate that CK1δ stimulates βTrCP-dependent ATF4 polyubiquitination and subsequent proteasomal degradation to promote chemoresistance in gastric cancer. Stabilisation of the ATF4 protein with bortezomib (BTZ), an anticancer drug that inhibits proteasomal degradation, might be a rational strategy to improve chemotherapeutic efficacy in gastric cancer.
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Affiliation(s)
- Lifeng Feng
- Laboratory of Cancer BiologyKey Lab of Biotherapy in ZhejiangCancer Center of Zhejiang UniversitySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
| | - Muchun Li
- Laboratory of Cancer BiologyKey Lab of Biotherapy in ZhejiangCancer Center of Zhejiang UniversitySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
| | - Xinyang Hu
- Laboratory of Cancer BiologyKey Lab of Biotherapy in ZhejiangCancer Center of Zhejiang UniversitySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
| | - Yiling Li
- Laboratory of Cancer BiologyKey Lab of Biotherapy in ZhejiangCancer Center of Zhejiang UniversitySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
| | - Liyuan Zhu
- Laboratory of Cancer BiologyKey Lab of Biotherapy in ZhejiangCancer Center of Zhejiang UniversitySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
| | - Miaoqin Chen
- Laboratory of Cancer BiologyKey Lab of Biotherapy in ZhejiangCancer Center of Zhejiang UniversitySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
| | - Qi Wei
- Laboratory of Cancer BiologyKey Lab of Biotherapy in ZhejiangCancer Center of Zhejiang UniversitySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
| | - Wenxia Xu
- Central LaboratoryAffiliated Jinhua HospitalMedical School of Zhejiang UniversityJinhuaZhejiangChina
| | - Qiyin Zhou
- Laboratory of Cancer BiologyKey Lab of Biotherapy in ZhejiangCancer Center of Zhejiang UniversitySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
| | - Weikai Wang
- Laboratory of Cancer BiologyKey Lab of Biotherapy in ZhejiangCancer Center of Zhejiang UniversitySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
| | - Dingwei Chen
- Department of General SurgerySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
| | - Xian Wang
- Department of Medical OncologySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
| | - Hongchuan Jin
- Laboratory of Cancer BiologyKey Lab of Biotherapy in ZhejiangCancer Center of Zhejiang UniversitySir Run Run Shaw HospitalMedical School of Zhejiang UniversityHangzhouChina
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Ren J, Kong W, Lu F, Li Y. Adipose-derived stem cells (ADSCs) inhibit the expression of anti-apoptosis proteins through up-regulation of ATF4 on breast cancer cells. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1300. [PMID: 34532437 PMCID: PMC8422111 DOI: 10.21037/atm-21-3746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 08/06/2021] [Indexed: 12/09/2022]
Abstract
Background While current basic studies indicate adipose-derived stem cells (ADSCs) can promote cell proliferation, clinical trials have shown no significant difference in breast cancer recurrence rates for patients with or without autologous fat grafting (AFG). In this study we attempted to explore the underlying mechanism for these contradictory results. Methods ADSCs and umbilical mesenchymal stem cells (UMSCs) were co-cultured with breast cancer cells (MCF-7 and MDA-MB-231), and the cell viability analyzed by CCK-8 cell proliferation assay, TUNEL assay and immunofluorescence assay. In addition, real-time quantitative polymerase chain reaction (RT-qPCR) experiments and Western blot analysis were used to detect the mRNA and protein expression of activating transcription factor 4 (ATF4) and its downstream gene (MCL1 & BCL2), respectively. Results Co-cultured ADSCs could promote cell proliferation and cell apoptosis, and up-regulate ATF4 expression both in MCF-7 and MDA-MB-231. While co-cultured UMSCs could only promote cell apoptosis in MCF-7. Interestingly, we found that when co-cultured ADSCs, the expression of MCL1 and BCL2 protein was decreased, even if their mRNA expression was up-regulated both in MCF-7 and MDA-MB-231. Conclusions Co-cultured ADSCs can up-regulate ATF4 expression, then interfere with the translation process of MCL1 and BCL2 mRNA and induce cell apoptosis. These data provide insight into the safety characteristics of AFG.
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Affiliation(s)
- Jing Ren
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | | | - Feng Lu
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ye Li
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Wang M, Li H, Liu W, Cao H, Hu X, Gao X, Xu F, Li Z, Hua H, Li D. Dammarane-type leads panaxadiol and protopanaxadiol for drug discovery: Biological activity and structural modification. Eur J Med Chem 2020; 189:112087. [PMID: 32007667 DOI: 10.1016/j.ejmech.2020.112087] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 12/14/2019] [Accepted: 01/20/2020] [Indexed: 12/13/2022]
Abstract
Based on the definite therapeutic benefits, such as neuroprotective, cardioprotective, anticancer, anti-diabetic and so on, the Panax genus which contains many valuable plants, including ginseng (Panax ginseng C.A. Meyer), notoginseng (Panax notoginseng) and American ginseng (Panax quinquefolius L.), attracts research focus. Actually, the biological and pharmacological effects of the Panax genus are mainly attributed to the abundant ginsenosides. However, the low membrane permeability and the gastrointestinal tract influence seriously limit the absorption and bioavailability of ginsenosides. The acid or base hydrolysates of ginsenosides, 20 (R,S)-panaxadiol and 20 (R,S)-protopanaxadiol showed improved bioavailability and diverse pharmacological activities. Moreover, relative stable skeletons and active hydroxyl group at C-3 position and other reactive sites are suitable for structural modification to improve biological activities. In this review, the pharmacological activities of panaxadiol, protopanaxadiol and their structurally modified derivatives are comprehensively summarized.
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Affiliation(s)
- Mingying Wang
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Haonan Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Weiwei Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Hao Cao
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Xu Hu
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Xiang Gao
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Fanxing Xu
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Zhanlin Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Huiming Hua
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Dahong Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, And School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China.
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Xu X, Chen B, Huang Q, Wu Y, Liang T. The Effects of Puerarin on Autophagy Through Regulating of the PERK/eIF2α/ATF4 Signaling Pathway Influences Renal Function in Diabetic Nephropathy. Diabetes Metab Syndr Obes 2020; 13:2583-2592. [PMID: 32765037 PMCID: PMC7381766 DOI: 10.2147/dmso.s256457] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 07/02/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND PURPOSE Autophagy is the main protective mechanism against aging in podocytes, which are terminally differentiated cells that have a very limited capacity for mitosis and self-renewal. Here, a streptozotocin-induced DN C57BL/6 mouse model was used to investigate the effects of puerarin on the modulation of autophagy under conditions associated with endoplasmic reticulum stress (ERS). In addition, this study aimed to identify the potential underlying molecular mechanisms. METHODS AND RESULTS DN C57BL/6 mouse model was induced by streptozotocin (150 mg/kg) injection. The mice were administered rapamycin and puerarin, respectively, daily for up to 8 weeks. After the serum and kidney samples were collected, the fasting blood glucose (FBG), parameters of renal function, histomorphology, and the podocyte functional proteins were analyzed. Moreover, the autophagy markers and the expressions of PERK/ATF4 pathway were studied in kidney. Results found that the FBG level in DN mice was significantly higher than in normal mice. Compared with DN model mice, puerarin-treated mice showed an increased expression of podocyte functional proteins, including nephrin, podocin, and podocalyxin. Furthermore, the pathology and structure alterations were improved by treatment with rapamycin and puerarin compared with the DN control. The results indicated an elevated level of autophagy in rapamycin and puerarin groups compared with the DN model, as demonstrated by the upregulated expression of autophagy markers Beclin-1, LC3II, and Atg5, and downregulated p62 expression. In addition, the levels of PERK, eIF2α, and ATF4 were reduced in the DN model, which was partially, but significantly, prevented by rapamycin and puerarin. CONCLUSION This study emphasizes the renal-protective effects of puerarin in DN mice, particularly in the modulation of autophagy under ERS conditions, which may be associated with activation of the PERK/eIF2α/ATF4 signaling pathway. Therefore, PERK may be a potential target for DN treatment.
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Affiliation(s)
- Xiaohui Xu
- Department of Pharmacy, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi530021, People’s Republic of China
- Institute of Cancer Prevention and Treatment of Guangxi Zhuang Autonomous Region, Nanning, Guangxi530021, People’s Republic of China
- Correspondence: Xiaohui Xu Department of Pharmacy, Affiliated Tumor Hospital of Guangxi Medical University, No. 71, Hedi Road, Nanning530021, People’s Republic of China Tel/Fax +86 771-5778582 Email
| | - Biao Chen
- The First Nanning People’s Hospital, Nanning, Guangxi530022, People’s Republic of China
| | - Qichun Huang
- Department of Pharmacy, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi530021, People’s Republic of China
| | - Yani Wu
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi530021, People’s Republic of China
| | - Tao Liang
- College of Stomatology of Guangxi Medical University, Nanning, Guangxi530021, People’s Republic of China
- Tao Liang College of Stomatology of Guangxi Medical University, No. 10, Shuangyong Road, Nanning530021, People’s Republic of China Tel/Fax +86 771-5358635 Email
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