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Ma L, Li R, Yao Z, Wang B, Liu Y, Liu C, Wang H, Chen S, Sun D. Computational study on new natural compound inhibitors of Traf2 and Nck-interacting kinase (TNIK). Aging (Albany NY) 2022; 14:8394-8410. [DOI: 10.18632/aging.204349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/05/2022] [Indexed: 11/25/2022]
Affiliation(s)
- Lushun Ma
- Department of Paediatric Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Rui Li
- Department of Paediatric Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Zhiwei Yao
- Department of Paediatric Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Bo Wang
- Department of Paediatric Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Yong Liu
- Department of Paediatric Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Chunxiang Liu
- Department of Paediatric Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Heng Wang
- Department of Paediatric Surgery, Tianjin Medical University General Hospital, Tianjin, China
- Department of Gastrointestinal Surgery/Pediatric Surgery, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Shuxian Chen
- Department of Paediatric Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Daqing Sun
- Department of Paediatric Surgery, Tianjin Medical University General Hospital, Tianjin, China
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Lardos A, Aghaebrahimian A, Koroleva A, Sidorova J, Wolfram E, Anisimova M, Gil M. Computational Literature-based Discovery for Natural Products Research: Current State and Future Prospects. FRONTIERS IN BIOINFORMATICS 2022; 2:827207. [PMID: 36304281 PMCID: PMC9580913 DOI: 10.3389/fbinf.2022.827207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/28/2022] [Indexed: 11/21/2022] Open
Abstract
Literature-based discovery (LBD) mines existing literature in order to generate new hypotheses by finding links between previously disconnected pieces of knowledge. Although automated LBD systems are becoming widespread and indispensable in a wide variety of knowledge domains, little has been done to introduce LBD to the field of natural products research. Despite growing knowledge in the natural product domain, most of the accumulated information is found in detached data pools. LBD can facilitate better contextualization and exploitation of this wealth of data, for example by formulating new hypotheses for natural product research, especially in the context of drug discovery and development. Moreover, automated LBD systems promise to accelerate the currently tedious and expensive process of lead identification, optimization, and development. Focusing on natural product research, we briefly reflect the development of automated LBD and summarize its methods and principal data sources. In a thorough review of published use cases of LBD in the biomedical domain, we highlight the immense potential of this data mining approach for natural product research, especially in context with drug discovery or repurposing, mode of action, as well as drug or substance interactions. Most of the 91 natural product-related discoveries in our sample of reported use cases of LBD were addressed at a computer science audience. Therefore, it is the wider goal of this review to introduce automated LBD to researchers who work with natural products and to facilitate the dialogue between this community and the developers of automated LBD systems.
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Affiliation(s)
- Andreas Lardos
- Natural Product Chemistry and Phytopharmacy Research Group, Institute of Chemistry and Biotechnology, School of Life Sciences and Facility Management, Zurich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
- *Correspondence: Andreas Lardos,
| | - Ahmad Aghaebrahimian
- Institute of Applied Simulation, School of Life Sciences and Facility Management, Zürich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Anna Koroleva
- Institute of Applied Simulation, School of Life Sciences and Facility Management, Zürich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Julia Sidorova
- Instituto de Tecnología del Conocimiento, Universidad Complutense de Madrid, Madrid, Spain
| | - Evelyn Wolfram
- Natural Product Chemistry and Phytopharmacy Research Group, Institute of Chemistry and Biotechnology, School of Life Sciences and Facility Management, Zurich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
| | - Maria Anisimova
- Institute of Applied Simulation, School of Life Sciences and Facility Management, Zürich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Manuel Gil
- Institute of Applied Simulation, School of Life Sciences and Facility Management, Zürich University of Applied Sciences (ZHAW), Waedenswil, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
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Zhang X, Zhang S, Zhao S, Wang X, Liu B, Xu H. Click Chemistry in Natural Product Modification. Front Chem 2021; 9:774977. [PMID: 34869223 PMCID: PMC8635925 DOI: 10.3389/fchem.2021.774977] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 10/11/2021] [Indexed: 12/23/2022] Open
Abstract
Click chemistry is perhaps the most powerful synthetic toolbox that can efficiently access the molecular diversity and unique functions of complex natural products up to now. It enables the ready synthesis of diverse sets of natural product derivatives either for the optimization of their drawbacks or for the construction of natural product-like drug screening libraries. This paper showcases the state-of-the-art development of click chemistry in natural product modification and summarizes the pharmacological activities of the active derivatives as well as the mechanism of action. The aim of this paper is to gain a deep understanding of the fruitful achievements and to provide perspectives, trends, and directions regarding further research in natural product medicinal chemistry.
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Affiliation(s)
- Xiang Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Shuning Zhang
- Shanghai Institute for Advanced Immunochemical Studies, ShanghaiTech University, Shanghai, China
| | - Songfeng Zhao
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Xuan Wang
- The Second Clinical Medical College, Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bo Liu
- The Second Clinical Medical College, Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hongtao Xu
- Shanghai Institute for Advanced Immunochemical Studies, ShanghaiTech University, Shanghai, China
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Sur D, Gorzo A, Sabarimurugan S, Krishnan SM, Lungulescu CV, Volovat SR, Burz C. A Comprehensive Review of the Use of Antioxidants and Natural Products in Cancer Patients Receiving Anticancer Therapy. Anticancer Agents Med Chem 2021; 22:1511-1522. [PMID: 34488590 DOI: 10.2174/1871520621666210901100827] [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: 02/22/2021] [Revised: 06/25/2021] [Accepted: 07/05/2021] [Indexed: 11/22/2022]
Abstract
Cancer is the leading cause of mortality and morbidity worldwide. The side effects of cancer treatment affect the quality of life. Cancer patients search for antioxidant dietary supplements and natural products during or after conventional cancer treatment for the alleviation of side effects, improvement of the benefits of treatment, and promotion of well-being. However, the efficacy and safety of these products remain controversial; moreover, previous data do not support the standardized use of those alternative treatments in clinics. The current study reviewed the manuscripts reporting the administration of antioxidants and natural products during cancer treatment and revised preclinical and clinical studies on various types of cancer. Most of the positive results were obtained from experimental animal models; however, human clinical studies are discouraging in this regard. Therefore, further precise and distinguishable studies are required regarding antioxidant dietary supplementation. Future studies are also needed to clarify dietary supplements' mechanism of action and pharmacokinetics in a suitable cancer patient population that will benefit the therapeutic regimens. Despite the popularity of dietary supplements, clinicians and patients should always consider their potential benefits and risks. Patients should discuss with their physician before taking any dietary antioxidant supplements or natural products.
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Affiliation(s)
- Daniel Sur
- Department of Medical Oncology, "Prof. Dr. Ion Chiricuta" Oncology Institute, Cluj-Napoca. Romania
| | - Alecsandra Gorzo
- Department of Medical Oncology, "Prof. Dr. Ion Chiricuta" Oncology Institute, Cluj-Napoca. Romania
| | - Shanthi Sabarimurugan
- School of Biomedical Sciences, Faculty of Health and Medical Sciences, The University of Western Australia, Nedlands, WA 6009. Australia
| | - Saravana Murali Krishnan
- Plant Genetic Engineering Laboratory, Department of Biotechnology, Bharathiar University, Coimbatore 641046. India
| | | | - Simona Ruxandra Volovat
- Department of Medical Oncology-Radiotherapy, Grigore T Popa University of Medicine and Pharmacy, Iași. Romania
| | - Claudia Burz
- Department of Medical Oncology, "Prof. Dr. Ion Chiricuta" Oncology Institute, Cluj-Napoca. Romania
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Tree-Based QSAR Model for Drug Repurposing in the Discovery of New Antibacterial Compounds Against Escherichia coli. Pharmaceuticals (Basel) 2020; 13:ph13120431. [PMID: 33260726 PMCID: PMC7760995 DOI: 10.3390/ph13120431] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/23/2020] [Accepted: 11/26/2020] [Indexed: 01/31/2023] Open
Abstract
Drug repurposing appears as an increasing popular tool in the search of new treatment options against bacteria. In this paper, a tree-based classification method using Linear Discriminant Analysis (LDA) and discrete indexes was used to create a QSAR (Quantitative Structure-Activity Relationship) model to predict antibacterial activity against Escherichia coli. The model consists on a hierarchical decision tree in which a discrete index is used to divide compounds into groups according to their values for said index in order to construct probability spaces. The second step consists in the calculation of a discriminant function which determines the prediction of the model. The model was used to screen the DrugBank database, identifying 134 drugs as possible antibacterial candidates. Out of these 134 drugs, 8 were antibacterial drugs, 67 were drugs approved for different pathologies and 55 were drugs in experimental stages. This methodology has proven to be a viable alternative to the traditional methods used to obtain prediction models based on LDA and its application provides interesting new drug candidates to be studied as repurposed antibacterial treatments. Furthermore, the topological indexes Nclass and Numhba have proven to have the ability to group active compounds effectively, which suggests a close relationship between them and the antibacterial activity of compounds against E. coli.
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Ge J, Wang Z, Cheng Y, Ren J, Wu B, Li W, Wang X, Shu X, Liu Z. Computational study of novel natural inhibitors targeting aminopeptidase N(CD13). Aging (Albany NY) 2020; 12:8523-8535. [PMID: 32388498 PMCID: PMC7244087 DOI: 10.18632/aging.103155] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 04/17/2020] [Indexed: 12/31/2022]
Abstract
OBJECTIVES To screen and identify ideal leading compounds from a drug library (ZINC15 database) with potential inhibition of aminopeptidase N(CD13) to contribute to medication design and development. RESULTS Two novel natural compounds, ZINC000000895551 and ZINC000014820583, from the ZINC15 database were found to have a higher binding affinity and more favorable interaction energy binding with CD13 with less rodent carcinogenicity, Ames mutagenicity, and non-inhibition with cytochrome P-450 2D6. Molecular dynamics simulation analysis suggested that the 2 complexes, ZINC000000895551-CD13 and ZINC000014820583-CD13, have favorable potential energy, and exist stably in the natural circumstances. CONCLUSION This study discovered that ZINC000000895551 and ZINC000014820583 were ideal leading compounds to be inhibitions targeting to CD13. These compounds were selected as safe drug candidates as CD13 target medication design and improvement. MATERIALS AND METHOD Potential inhibitors of CD13 were identified using a series of computer-aided structural and chemical virtual screening techniques. Structure-based virtual screening was carried out to calculate LibDock scores, followed by analyzing their absorption, distribution, metabolism, and excretion and toxicity predictions. Molecule docking was employed to reveal binding affinity between the selected compounds and CD13. Molecular dynamics simulation was applied to evaluate stability of the ligand-CD13 complex under natural environment.
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Affiliation(s)
- Junliang Ge
- Clinical College, Jilin University, Changchun, China
| | - Zhongfeng Wang
- Hepatopancreatobiliary Medicine Department, Jilin University First Hospital, Changchun, China
| | - Ye Cheng
- Department of Neurosurgery, The Xuanwu Hospital Capital Medical University, Changchun, Beijing, China
| | - Junan Ren
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Bo Wu
- Clinical College, Jilin University, Changchun, China
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, China
| | - Weihang Li
- Clinical College, Jilin University, Changchun, China
- Department of Orthopaedic Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xinhui Wang
- Department of Oncology, the First Hospital of Jilin University, Changchun, China
| | - Xing Shu
- The Laboratory of Cancer Precision Medicine, The First Hospital of Jilin University, Changchun, China
| | - Ziling Liu
- Department of Oncology, The First Hospital of Jilin University, Changchun, China
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Inhibitory Effects of Raw-Extract Centella asiatica (RECA) on Acetylcholinesterase, Inflammations, and Oxidative Stress Activities via In Vitro and In Vivo. Molecules 2020; 25:molecules25040892. [PMID: 32079355 PMCID: PMC7070982 DOI: 10.3390/molecules25040892] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/11/2020] [Accepted: 01/19/2020] [Indexed: 02/05/2023] Open
Abstract
Centella asiatica (C. asiatica) is one of the medicinal plants that has been reported to exert comprehensive neuroprotection in vitro and in vivo. In view of this, the present study was performed to investigate the effect of ethanolic extract of C. asiatica, designated as raw-extract of C. asiatica (RECA) in reducing the acetylcholinesterase (AChE), inflammations, and oxidative stress activities via both in vitro (SH-SY5Y and RAW 264.7 cells) and in vivo (Sprague Dawley rats). Quantitative high-performance liquid chromatography analysis reveals that RECA contains a significantly high proportion of glycosides than the aglycones with madecassoside as the highest component, followed by asiaticoside. Treatment of SH-SY5Y cells with RECA significantly reduced the AChE activity in a concentration-dependent manner with an IC50 value of 31.09 ± 10.07 µg/mL. Furthermore, the anti-inflammatory and antioxidant effects of RECA were evaluated by lipopolysaccharides (LPS)-stimulated RAW 264.7 cells. Our results elucidated that treatment with RECA significantly suppressed the level of pro-inflammatory cytokine/mediators and oxidative stress released in a concentration-dependent manner. Interestingly, these patterns of inhibition were consistent as observed in the LPS-induced neuroinflammation Sprague Dawley rats’ model. The highest concentration used in the two models presented the most significant results. Herein, our findings strongly suggest that RECA may offer therapeutic potential for the treatment of Alzheimer’s disease through inhibiting the AChE, inflammation, and oxidative stress activities.
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Yang L, Li W, Zhao Y, Zhong S, Wang X, Jiang S, Cheng Y, Xu H, Zhao G. Computational Study of Novel Natural Inhibitors Targeting O 6-Methylguanine-DNA Methyltransferase. World Neurosurg 2019; 130:e294-e306. [PMID: 31203065 DOI: 10.1016/j.wneu.2019.05.264] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 05/27/2019] [Accepted: 05/28/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To screen ideal lead compounds from a drug library (ZINC15 database) with potential inhibition effect against O6-methylguanine-DNA methyltransferase (MGMT) to contribute to medication design and refinement. METHODS A series of computer-aided virtual screening techniques were used to identify potential inhibitors of MGMT. Structure-based virtual screening by LibDock was carried out to calculate LibDock scores, followed by absorption, distribution, metabolism, and excretion and toxicity predictions. Molecule docking was employed to demonstrate binding affinity and mechanism between the selected ligands and MGMT protein. Molecular dynamics simulation was performed to evaluate stability of the ligand-MGMT complex under natural circumstances. RESULTS Two novel natural compounds, ZINC000008220033 and ZINC000001529323, from the ZINC15 database were found to bind with MGMT with a higher binding affinity together with more favorable interaction energy. Also, they were predicted to have less rodent carcinogenicity, Ames mutagenicity, and developmental toxicity potential as well as noninhibition with cytochrome P-450 2D6. Molecular dynamics simulation analysis demonstrated that the 2 complexes ZINC000008220033-MGMT and ZINC000001529323-MGMT had more favorable potential energy compared with reference ligand O6-benzylguanine, and they could exist stably in the natural environment. CONCLUSIONS This study elucidated that ZINC000008220033 and ZINC000001529323 were ideal lead compounds with potential inhibition targeting to MGMT protein. These compounds were selected as safe drug candidates and may contribute a solid basis for MGMT target medication design and improvement.
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Affiliation(s)
- Liu Yang
- Ultrasound Department, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Weihang Li
- College of Clinical Medicine, Jilin University, Changchun, China
| | - Yingjing Zhao
- College of Clinical Medicine, Jilin University, Changchun, China
| | - Sheng Zhong
- Department of Neurosurgery, the First Hospital of Jilin University, Changchun, China; Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Xinhui Wang
- Department of Oncology, the First Hospital of Jilin University, Changchun, China
| | | | - Ye Cheng
- Department of Neurosurgery, Xuan Wu Hospital of Capital Medical University, Beijing, China
| | - Haiyang Xu
- Department of Neurosurgery, the First Hospital of Jilin University, Changchun, China.
| | - Gang Zhao
- Department of Neurosurgery, the First Hospital of Jilin University, Changchun, China
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Oceans as a Source of Immunotherapy. Mar Drugs 2019; 17:md17050282. [PMID: 31083446 PMCID: PMC6562586 DOI: 10.3390/md17050282] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/03/2019] [Accepted: 05/06/2019] [Indexed: 02/07/2023] Open
Abstract
Marine flora is taxonomically diverse, biologically active, and chemically unique. It is an excellent resource, which offers great opportunities for the discovery of new biopharmaceuticals such as immunomodulators and drugs targeting cancerous, inflammatory, microbial, and fungal diseases. The ability of some marine molecules to mediate specific inhibitory activities has been demonstrated in a range of cellular processes, including apoptosis, angiogenesis, and cell migration and adhesion. Immunomodulators have been shown to have significant therapeutic effects on immune-mediated diseases, but the search for safe and effective immunotherapies for other diseases such as sinusitis, atopic dermatitis, rheumatoid arthritis, asthma and allergies is ongoing. This review focuses on the marine-originated bioactive molecules with immunomodulatory potential, with a particular focus on the molecular mechanisms of specific agents with respect to their targets. It also addresses the commercial utilization of these compounds for possible drug improvement using metabolic engineering and genomics.
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Zhao B, Liu L, Mao J, Liu K, Fan W, Liu J, Zhang Z, Li Q. Sinomenine hydrochloride attenuates the proliferation, migration, invasiveness, angiogenesis and epithelial-mesenchymal transition of clear-cell renal cell carcinoma cells via targeting Smad in vitro. Biomed Pharmacother 2017; 96:1036-1044. [PMID: 29198924 DOI: 10.1016/j.biopha.2017.11.123] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 11/16/2017] [Accepted: 11/27/2017] [Indexed: 01/06/2023] Open
Abstract
New strategies for the treatment of clear-cell renal cell carcinoma (ccRCC) are urgently needed. Recently, accumulating evidence has demonstrated that sinomenine hydrochloride (SH), extracted from the plant sinomenium acutum, has potent anti-cancer activity in multiple human malignant solid tumors. However, the underlying molecular mechanism by which SH treatment exerts its antagonizing tumorigenic effects has not been clearly elucidated. In this study, we showed that SH treatment exerted profound effects on cell growth in ccRCC in a dose- and time-dependent manner in vitro. Furthermore, treatment with SH significantly suppressed the migration, invasiveness and angiogenesis of ccRCC cells in vitro. Mechanistically, we revealed that SH treatment blocked epithelial-mesenchymal transition (EMT) through the downregulation of the expression of the transcription factors Snail1 and Twist in ccRCC cells. Additionally, the depletion of p-Smad2 and p-Smad3 was required for SH treatment to inhibit EMT effectively. Taken together, these findings indicate an anti-cancer role for SH in ccRCC cells and reveal a potential molecular mechanism by which Smad / EMT axis functions in ccRCC, as its hyperactivation has been associated with cell proliferation, migration, invasiveness and angiogenesis in this cancer type. These observations suggest that SH can act as an efficacious adjuvant chemotherapeutic candidate that targets the Smad/EMT axis in patients with ccRCC.
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Affiliation(s)
- Bin Zhao
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, No. 222 Zhongshan Road, Dalian 116011, China
| | - Lei Liu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, No. 222 Zhongshan Road, Dalian 116011, China
| | - Jun Mao
- The Key Laboratory of Tumor Stem Cell Research of Liaoning Province, Dalian Medical University, Dalian 116044, China
| | - Kun Liu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, No. 222 Zhongshan Road, Dalian 116011, China
| | - Weiwang Fan
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, No. 222 Zhongshan Road, Dalian 116011, China
| | - Jiheng Liu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, No. 222 Zhongshan Road, Dalian 116011, China
| | - Zhiwei Zhang
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, No. 222 Zhongshan Road, Dalian 116011, China.
| | - Quanlin Li
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, No. 222 Zhongshan Road, Dalian 116011, China.
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Li S, Ding W, Zhang X, Jiang H, Bi C. Development of a modularized two-step (M2S) chromosome integration technique for integration of multiple transcription units in Saccharomyces cerevisiae. BIOTECHNOLOGY FOR BIOFUELS 2016; 9:232. [PMID: 27800017 PMCID: PMC5084435 DOI: 10.1186/s13068-016-0645-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 10/13/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Saccharomyces cerevisiae has already been used for heterologous production of fuel chemicals and valuable natural products. The establishment of complicated heterologous biosynthetic pathways in S. cerevisiae became the research focus of Synthetic Biology and Metabolic Engineering. Thus, simple and efficient genomic integration techniques of large number of transcription units are demanded urgently. RESULTS An efficient DNA assembly and chromosomal integration method was created by combining homologous recombination (HR) in S. cerevisiae and Golden Gate DNA assembly method, designated as modularized two-step (M2S) technique. Two major assembly steps are performed consecutively to integrate multiple transcription units simultaneously. In Step 1, Modularized scaffold containing a head-to-head promoter module and a pair of terminators was assembled with two genes. Thus, two transcription units were assembled with Golden Gate method into one scaffold in one reaction. In Step 2, the two transcription units were mixed with modules of selective markers and integration sites and transformed into S. cerevisiae for assembly and integration. In both steps, universal primers were designed for identification of correct clones. Establishment of a functional β-carotene biosynthetic pathway in S. cerevisiae within 5 days demonstrated high efficiency of this method, and a 10-transcriptional-unit pathway integration illustrated the capacity of this method. CONCLUSIONS Modular design of transcription units and integration elements simplified assembly and integration procedure, and eliminated frequent designing and synthesis of DNA fragments in previous methods. Also, by assembling most parts in Step 1 in vitro, the number of DNA cassettes for homologous integration in Step 2 was significantly reduced. Thus, high assembly efficiency, high integration capacity, and low error rate were achieved.
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Affiliation(s)
- Siwei Li
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Ave, Tianjin Airport Economic Park, Tianjin, 300308 China
| | - Wentao Ding
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Ave, Tianjin Airport Economic Park, Tianjin, 300308 China
| | - Xueli Zhang
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Ave, Tianjin Airport Economic Park, Tianjin, 300308 China
| | - Huifeng Jiang
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Ave, Tianjin Airport Economic Park, Tianjin, 300308 China
| | - Changhao Bi
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 West 7th Ave, Tianjin Airport Economic Park, Tianjin, 300308 China
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12
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Barreto RS, Quintans JS, Barreto AS, Albuquerque-Júnior RL, Galvão JG, Gonsalves JK, Nunes RS, Camargo EA, Lucca-Júnior W, Soares RC, Feitosa VLC, Quintans-Júnior LJ. Improvement of wound tissue repair by chitosan films containing (-)-borneol, a bicyclic monoterpene alcohol, in rats. Int Wound J 2016; 13:799-808. [PMID: 25471005 PMCID: PMC7949920 DOI: 10.1111/iwj.12385] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 08/02/2014] [Accepted: 09/29/2014] [Indexed: 12/17/2022] Open
Abstract
The aim of this study was to investigate the wound-healing activity of (-)-borneol (BOR) incorporated in chitosan film on healing protocol in rodents. To assess the BOR wound-healing potential, male Wistar rats were subjected to a full-thickness excisional wound. The animals were divided into three groups: dressed with chitosan-based film (QUIN); dressed with chitosan-based film containing 0·5% BOR (QUIBO05); or dressed with chitosan-based film containing 1% BOR (QUIBO1). Dressing the wound areas and histological analysis were performed on the 3rd, 7th, 14th, and 21st days. The myeloperoxidase (MPO) activity was assessed on the third and seventh days after surgical procedures. Wounds dressed with chitosan-based film containing BOR reduced significantly the MPO activity (P < 0·001), showed significantly larger wound retraction rates (7 days, P < 0·05), improved the granulation reaction, and also provided better collagenisation density and arrangement during wound healing. It is suggested that BOR modulates the wound-healing process and is a promising compound to be used in wound care. This product may be quite useful in improving wound healing and could be a new biotechnological product with healing properties and clinical application. Further ongoing studies will enable us to understand the precise mechanisms whereby BOR improves the wound-healing process.
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Affiliation(s)
- Rosana Ss Barreto
- Department of Physiology, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil.
| | - Jullyana Ss Quintans
- Department of Physiology, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - André S Barreto
- Department of Physiology, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | | | - Juliana G Galvão
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - Joice Kmc Gonsalves
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - Rogéria S Nunes
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - Enilton A Camargo
- Department of Physiology, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - Waldecy Lucca-Júnior
- Department of Morphology, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - Rosilene C Soares
- Department of Morphology, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - Vera Lúcia C Feitosa
- Department of Morphology, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
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Dhar N, Razdan S, Rana S, Bhat WW, Vishwakarma R, Lattoo SK. A Decade of Molecular Understanding of Withanolide Biosynthesis and In vitro Studies in Withania somnifera (L.) Dunal: Prospects and Perspectives for Pathway Engineering. FRONTIERS IN PLANT SCIENCE 2015; 6:1031. [PMID: 26640469 PMCID: PMC4661287 DOI: 10.3389/fpls.2015.01031] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 11/06/2015] [Indexed: 05/16/2023]
Abstract
Withania somnifera, a multipurpose medicinal plant is a rich reservoir of pharmaceutically active triterpenoids that are steroidal lactones known as withanolides. Though the plant has been well-characterized in terms of phytochemical profiles as well as pharmaceutical activities, limited attempts have been made to decipher the biosynthetic route and identification of key regulatory genes involved in withanolide biosynthesis. This scenario limits biotechnological interventions for enhanced production of bioactive compounds. Nevertheless, recent emergent trends vis-à-vis, the exploration of genomic, transcriptomic, proteomic, metabolomics, and in vitro studies have opened new vistas regarding pathway engineering of withanolide production. During recent years, various strategic pathway genes have been characterized with significant amount of regulatory studies which allude toward development of molecular circuitries for production of key intermediates or end products in heterologous hosts. Another pivotal aspect covering redirection of metabolic flux for channelizing the precursor pool toward enhanced withanolide production has also been attained by deciphering decisive branch point(s) as robust targets for pathway modulation. With these perspectives, the current review provides a detailed overview of various studies undertaken by the authors and collated literature related to molecular and in vitro approaches employed in W. somnifera for understanding various molecular network interactions in entirety.
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Affiliation(s)
- Niha Dhar
- Plant Biotechnology, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
| | - Sumeer Razdan
- Plant Biotechnology, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
| | - Satiander Rana
- Plant Biotechnology, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
| | - Wajid W Bhat
- Plant Biotechnology, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
| | - Ram Vishwakarma
- Medicinal Chemistry, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
| | - Surrinder K Lattoo
- Plant Biotechnology, CSIR - Indian Institute of Integrative Medicine Jammu Tawi, India
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da Costa E, Melo T, Moreira AS, Alves E, Domingues P, Calado R, Abreu MH, Domingues MR. Decoding bioactive polar lipid profile of the macroalgae Codium tomentosum from a sustainable IMTA system using a lipidomic approach. ALGAL RES 2015. [DOI: 10.1016/j.algal.2015.09.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Sharma V, Sarkar IN. Leveraging biodiversity knowledge for potential phyto-therapeutic applications. J Am Med Inform Assoc 2013; 20:668-79. [PMID: 23518859 PMCID: PMC3721164 DOI: 10.1136/amiajnl-2012-001445] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 02/02/2013] [Accepted: 03/02/2013] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE To identify and highlight the feasibility, challenges, and advantages of providing a cross-domain pipeline that can link relevant biodiversity information for phyto-therapeutic assessment. MATERIALS AND METHODS A public repository of clinical trials information (ClinicalTrials.gov) was explored to determine the state of plant-based interventions under investigation. RESULTS The results showed that ≈ 15% of drug interventions in ClinicalTrials.gov were potentially plant related, with about 60% of them clustered within 10 taxonomic families. Further analysis of these plant-based interventions identified ≈ 3.7% of associated plant species as endangered as determined from the International Union for the Conservation of Nature Red List. DISCUSSION The diversity of the plant kingdom has provided human civilization with life-sustaining food and medicine for centuries. There has been renewed interest in the investigation of botanicals as sources of new drugs, building on traditional knowledge about plant-based medicines. However, data about the plant-based biodiversity potential for therapeutics (eg, based on genetic or chemical information) are generally scattered across a range of sources and isolated from contemporary pharmacological resources. This study explored the potential to bridge biodiversity and biomedical knowledge sources. CONCLUSIONS The findings from this feasibility study suggest that there is an opportunity for developing plant-based drugs and further highlight taxonomic relationships between plants that may be rich sources for bioprospecting.
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Affiliation(s)
- Vivekanand Sharma
- Department of Microbiology and Molecular Genetics, University of Vermont, Burlington, Vermont, USA
| | - Indra Neil Sarkar
- Department of Microbiology and Molecular Genetics, University of Vermont, Burlington, Vermont, USA
- Biomedical Informatics Unit, Center for Clinical and Translational Science, University of Vermont, Burlington, Vermont, USA
- Department of Computer Science, University of Vermont, Burlington, Vermont, USA
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Brito RG, Santos PL, Prado DS, Santana MT, Araújo AAS, Bonjardim LR, Santos MRV, de Lucca Júnior W, Oliveira AP, Quintans-Júnior LJ. Citronellol reduces orofacial nociceptive behaviour in mice - evidence of involvement of retrosplenial cortex and periaqueductal grey areas. Basic Clin Pharmacol Toxicol 2012; 112:215-21. [PMID: 23035741 DOI: 10.1111/bcpt.12018] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Accepted: 09/16/2012] [Indexed: 12/15/2022]
Abstract
Citronellol (CT) is a monoterpenoid alcohol present in the essential oil of many medicinal plants, such as Cymbopogon citratus. We evaluated the antinociceptive effects of CT on orofacial nociception in mice and investigated the central pathway involved in the effect. Male Swiss mice were pretreated with CT (25, 50 and 100 mg/kg, i.p.), morphine (5 mg/kg, i.p.) or vehicle (saline + tween 80 0.2%). Thirty minutes after the treatment, we injected formalin (20 μl, 2%), capsaicin (20 μl, 2.5 μg) or glutamate (40 μl, 25 μM) into the right limb. For the action in the CNS, ninety minutes after the treatment, the animals were perfused, the brains collected, crioprotected, cut in a criostate and submitted in an immunofluorescence protocol for Fos protein. CT produced significant (p < 0.01) antinociceptive effect, in all doses, in the formalin, capsaicin and glutamate tests. The immunofluorescence showed that the CT activated significantly (p < 0.05) the olfactory bulb, the piriform cortex, the retrosplenial cortex and the periaqueductal grey of the CNS. Together, our results provide first-time evidence that this monoterpene attenuates orofacial pain at least, in part, through an activation of CNS areas, mainly retrosplenial cortex and periaqueductal grey.
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Affiliation(s)
- Renan G Brito
- Department of Physiology, Federal University of Sergipe, Aracaju, SE, Brazil
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