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Chen Z, Xie W, Tang S, Lin M, Ren L, Huang X, Deng L, Qian R, Wang Z, Xiong D, Xie P, Liu W. Taraxerone exerts antipulmonary fibrosis effect through Smad signaling pathway and antioxidant stress response in a Sirtuin1-dependent manner. Phytother Res 2024. [PMID: 38776174 DOI: 10.1002/ptr.8221] [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: 05/04/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 05/24/2024]
Abstract
Idiopathic pulmonary fibrosis treatments are limited, often with severe side effects, highlighting the need for novel options. Taraxerone has diverse biomedical properties, but its mechanism remains unclear. This study investigates taraxerone's impact and the mechanisms involved in bleomycin-induced pulmonary fibrosis in mice. After establishing a pulmonary fibrosis mouse model, taraxerone was intraperitoneally injected continuously for 14-28 days. The in vivo antifibrotic and antioxidative stress effects of taraxerone were assessed. In vitro, the influence of taraxerone on transforming growth factor-β1-induced myofibroblast transformation and oxidative stress was investigated. Subsequently, quantitative polymerase chain reaction screened the histone deacetylase and Sirtuin family, and taraxerone's effects on SIRT1 were assessed. After SIRT1 siRNA treatment, changes in myofibroblast transformation and antioxidant capacity in response to taraxerone were observed. Acetylation and phosphorylation levels of Smad3 were evaluated. We also examined the binding levels of SIRT1 with Pho-Smad3 and Smad3, as well as the nuclear localization of Smad2/3. EX527 confirmed SIRT1's in vivo action in response to taraxerone. In vitro experiments suggested that taraxerone inhibited myofibroblast differentiation by activating SIRT1 and reducing oxidative stress. We also observed a new interaction between SIRT1 and the Smad complex. Taraxerone activates SIRT1, enabling it to bind directly to Smad3. This leads to reduced Smad complex phosphorylation and limited nuclear translocation. As a result, the transcription of fibrotic factors is reduced. In vivo validation confirms taraxerone's SIRT1-mediated antifibrotic effectiveness. This suggests that targeting SIRT1-mediated inhibition of myofibroblast differentiation could be a key strategy in taraxerone-based therapy for pulmonary fibrosis.
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Affiliation(s)
- Ziwei Chen
- Xiangya Nursing School, Central South University, Changsha, China
- Laboratory Medicine Department, Xiangya Hospital, Central South University, Changsha, China
| | - Weixi Xie
- Xiangya Nursing School, Central South University, Changsha, China
| | - Siyuan Tang
- Xiangya Nursing School, Central South University, Changsha, China
| | - Miao Lin
- Xiangya Nursing School, Central South University, Changsha, China
| | - Lu Ren
- Clinical Nursing Teaching and Research Section, The Second Xiangya Hospital, Central South University, Changsha, China
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoting Huang
- Xiangya Nursing School, Central South University, Changsha, China
| | - Lang Deng
- Xiangya Nursing School, Central South University, Changsha, China
| | - Rui Qian
- Xiangya Nursing School, Central South University, Changsha, China
| | - Zun Wang
- Xiangya Nursing School, Central South University, Changsha, China
| | - Dayang Xiong
- Xiangya Nursing School, Central South University, Changsha, China
| | - Pingli Xie
- National Experimental Teaching Demonstration Center for Medical Function, Central South University, Changsha, China
| | - Wei Liu
- Xiangya Nursing School, Central South University, Changsha, China
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Costa Dos Santos D, Silva Macêdo N, de Sousa Silveira Z, Silva Pereira RL, Moura Araújo I, Justino Araújo AC, Alves Gonçalves S, da Silveira Regueira Neto M, de Queiroz Balbino V, Torres de Carvalho A, Oliveira de Veras B, Bezerra da Cunha FA, Melo Coutinho HD, Vieira Brito S. Antibacterial and Toxic Activity of Geopropolis Extracts from Melipona subnitida (Ducke, 1910) (Hymenoptera: Apidae) and Scaptotrigona depilis (Moure, 1942) (Hymenoptera: Apidae). Chem Biodivers 2023; 20:e202300931. [PMID: 37776535 DOI: 10.1002/cbdv.202300931] [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: 06/24/2023] [Revised: 09/20/2023] [Accepted: 09/24/2023] [Indexed: 10/02/2023]
Abstract
Bacteria are associated with many infections that affect humans and present antibiotic resistance mechanisms, causing problems in health organisations and increased mortality rates. Therefore, it is necessary to find new antibacterial agents that can be used in the treatment of these microorganisms. Geopropolis is a natural product from stingless bees, formed by a mixture of plant resins, salivary secretions, wax and soil particles, the chemical composition of this natural product is diverse. Thus, this study aimed to evaluate antibacterial activity, antibiotic modulation and the toxicity of geopropolis extracts from the stingless bees, Melipona subnitida (Ducke, 1910) and Scaptotrigona depilis (Moure, 1942) against standard and multi-resistant Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa bacteria. Geopropolis samples were collected in a meliponary located in Camaragibe, Pernambuco, Brazil. To determine the Minimum Inhibitory Concentration (MIC) and antibiotic modulation we performed broth microdilution tests. Mortality tests were used to verify extract toxicity in the model Drosophila melanogaster. The microbiological tests showing that the M. subnitida extracts had better inhibitory effects compared to S. depilis, presenting direct antibacterial activity against standard and multi-resistant strains. The extracts potentialized antibiotic effects, suggesting possible synergy and did not present toxicity in the model used. The information obtained in this study highlights extracts as promising antibacterial agents and is the first study to evaluate bacterial activity in these extracts, in addition to verifying their modulating effects and determining toxicity in the model used.
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Affiliation(s)
- Danilo Costa Dos Santos
- Programa de Pós-Graduação em Ciências Ambientais, Centro de Ciências de Chapadinha, Universidade Federal do Maranhão, BR 222, Km 04, S/N, Boa Vista, CEP 65500-000, Chapadinha, Maranhão, Brasil
| | - Nair Silva Macêdo
- Semiarid Bioprospecting Laboratory (LABSEMA), Regional University of Cariri-URCA, Crato, Ceará, Brazil
| | - Zildene de Sousa Silveira
- Semiarid Bioprospecting Laboratory (LABSEMA), Regional University of Cariri-URCA, Crato, Ceará, Brazil
| | - Raimundo Luiz Silva Pereira
- Laboratory of Microbiology and Molecular Biology (LMBM), Regional University of Cariri-URCA, Crato, Ceará, Brazil
| | - Isaac Moura Araújo
- Laboratory of Microbiology and Molecular Biology (LMBM), Regional University of Cariri-URCA, Crato, Ceará, Brazil
| | - Ana Carolina Justino Araújo
- Laboratory of Microbiology and Molecular Biology (LMBM), Regional University of Cariri-URCA, Crato, Ceará, Brazil
| | - Sheila Alves Gonçalves
- Laboratory of Microbiology and Molecular Biology (LMBM), Regional University of Cariri-URCA, Crato, Ceará, Brazil
| | | | | | - Airton Torres de Carvalho
- Department of Biosciences, Center of Biological and Health Sciences, Federal Rural, University of the Semi-Arid, Mossoró, RN, Brazil
| | - Bruno Oliveira de Veras
- Department of Biochemistry, Federal University of Pernambuco, 50670-420, Recife, Pernambuco, Brazil
| | | | | | - Samuel Vieira Brito
- Programa de Pós-Graduação em Ciências Ambientais, Centro de Ciências de Chapadinha, Universidade Federal do Maranhão, BR 222, Km 04, S/N, Boa Vista, CEP 65500-000, Chapadinha, Maranhão, Brasil
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Yan R, Cui W, Ma W, Li J, Liu Z, Lin Y. Typhaneoside-Tetrahedral Framework Nucleic Acids System: Mitochondrial Recovery and Antioxidation for Acute Kidney Injury treatment. ACS NANO 2023; 17:8767-8781. [PMID: 37057738 DOI: 10.1021/acsnano.3c02102] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Acute kidney injury (AKI) is not only a worldwide problem with a cruel hospital mortality rate but also an independent risk factor for chronic kidney disease and a promoting factor for its progression. Despite supportive therapeutic measures, there is no effective treatment for AKI. This study employs tetrahedral framework nucleic acid (tFNA) as a vehicle and combines typhaneoside (Typ) to develop the tFNA-Typ complex (TTC) for treating AKI. With the precise targeting ability on mitochondria and renal tubule, increased antiapoptotic and antioxidative effect, and promoted mitochondria and kidney function restoration, the TTC represents a promising nanomedicine for AKI treatment. Overall, this study has developed a dual-targeted nanoparticle with enhanced therapeutic effects on AKI and could have critical clinical applications in the future.
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Affiliation(s)
- Ran Yan
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P. R. China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Weitong Cui
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P. R. China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Wenjuan Ma
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P. R. China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Jiajie Li
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P. R. China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Zhiqiang Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P. R. China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P. R. China
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan 610041, China
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Plant Metabolites as SARS-CoV-2 Inhibitors Candidates: In Silico and In Vitro Studies. Pharmaceuticals (Basel) 2022; 15:ph15091045. [PMID: 36145266 PMCID: PMC9501068 DOI: 10.3390/ph15091045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/22/2022] [Accepted: 08/22/2022] [Indexed: 01/08/2023] Open
Abstract
Since it acquired pandemic status, SARS-CoV-2 has been causing all kinds of damage all over the world. More than 6.3 million people have died, and many cases of sequelae are in survivors. Currently, the only products available to most of the world’s population to fight the pandemic are vaccines, which still need improvement since the number of new cases, admissions into intensive care units, and deaths are again reaching worrying rates, which makes it essential to compounds that can be used during infection, reducing the impacts of the disease. Plant metabolites are recognized sources of diverse biological activities and are the safest way to research anti-SARS-CoV-2 compounds. The present study computationally evaluated 55 plant compounds in five SARS-CoV-2 targets such Main Protease (Mpro or 3CL or MainPro), RNA-dependent RNA polymerase (RdRp), Papain-Like Protease (PLpro), NSP15 Endoribonuclease, Spike Protein (Protein S or Spro) and human Angiotensin-converting enzyme 2 (ACE-2) followed by in vitro evaluation of their potential for the inhibition of the interaction of the SARS-CoV-2 Spro with human ACE-2. The in silico results indicated that, in general, amentoflavone, 7-O-galloylquercetin, kaempferitrin, and gallagic acid were the compounds with the strongest electronic interaction parameters with the selected targets. Through the data obtained, we can demonstrate that although the indication of individual interaction of plant metabolites with both Spro and ACE-2, the metabolites evaluated were not able to inhibit the interaction between these two structures in the in vitro test. Despite this, these molecules still must be considered in the research of therapeutic agents for treatment of patients affected by COVID-19 since the activity on other targets and influence on the dynamics of viral infection during the interaction Spro x ACE-2 should be investigated.
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Pereira FAN, Barboza JR, Vasconcelos CC, Lopes AJO, Ribeiro MNDS. Use of Stingless Bee Propolis and Geopropolis against Cancer-A Literature Review of Preclinical Studies. Pharmaceuticals (Basel) 2021; 14:1161. [PMID: 34832943 PMCID: PMC8623341 DOI: 10.3390/ph14111161] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 01/10/2023] Open
Abstract
Cancer is one of the major maladies affecting humankind and remains one of the leading causes of death worldwide. The investigation of the biological activities of stingless bee products, especially propolis and geopropolis, has revealed promising therapeutic properties, especially in the research on new antineoplastic agents. This literature review of preclinical trials, involving biological assays of antitumor activity and identification of the chemical composition of propolis and geopropolis of stingless bee species, describes the cytotoxicity in tumor lineages (breast, lung, ovarian, liver, mouth, pharynx, larynx, colon, stomach, colorectal, cervix, kidney, prostate, melanoma, human glioblastoma, canine osteosarcoma, erythroleukemia, human chronic myelocytic leukemia, and human promyelocytic leukemia) of propolis and geopropolis of 33 species of stingless bees. The chemical composition of propolis and geopropolis was identified, indicating that these belong to the chemical classes of phenolic acids, flavonoids, coumarins, benzophenones, anthraquinones, alkaloids, terpenes, steroids, saponins, fatty acids, and carbohydrates and are possibly responsible for the cytotoxicity in tumor cells. Apoptosis was one of the main mechanisms of cytotoxicity of extracts and substances isolated from stingless bee products. Although the results found are encouraging, other preclinical studies and clinical trials are essential for the discovery of new anticancer agents.
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Affiliation(s)
- Francisco Assis Nascimento Pereira
- Laboratório de Farmacognosia, Departamento de Farmácia, Campus Bacanga, Universidade Federal do Maranhão, Av. dos Portugueses, 1966, São Luís 65080-805, Maranhão, Brazil; (J.R.B.); (C.C.V.)
| | | | | | - Alberto Jorge Oliveira Lopes
- Laboratório de Farmacognosia, Departamento de Farmácia, Campus Bacanga, Universidade Federal do Maranhão, Av. dos Portugueses, 1966, São Luís 65080-805, Maranhão, Brazil; (J.R.B.); (C.C.V.)
| | - Maria Nilce de Sousa Ribeiro
- Laboratório de Farmacognosia, Departamento de Farmácia, Campus Bacanga, Universidade Federal do Maranhão, Av. dos Portugueses, 1966, São Luís 65080-805, Maranhão, Brazil; (J.R.B.); (C.C.V.)
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