1
|
Yang Y, Li Z, Zong H, Liu S, Du Q, Wu H, Li Z, Wang X, Huang L, Lai C, Zhang M, Wang W, Chen X. Identification and Validation of Magnolol Biosynthesis Genes in Magnolia officinalis. Molecules 2024; 29:587. [PMID: 38338333 PMCID: PMC10856379 DOI: 10.3390/molecules29030587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/16/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
Bacterial infections pose a significant risk to human health. Magnolol, derived from Magnolia officinalis, exhibits potent antibacterial properties. Synthetic biology offers a promising approach to manufacture such natural compounds. However, the plant-based biosynthesis of magnolol remains obscure, and the lack of identification of critical genes hampers its synthetic production. In this study, we have proposed a one-step conversion of magnolol from chavicol using laccase. After leveraging 20 transcriptomes from diverse parts of M. officinalis, transcripts were assembled, enriching genome annotation. Upon integrating this dataset with current genomic information, we could identify 30 laccase enzymes. From two potential gene clusters associated with magnolol production, highly expressed genes were subjected to functional analysis. In vitro experiments confirmed MoLAC14 as a pivotal enzyme in magnolol synthesis. Improvements in the thermal stability of MoLAC14 were achieved through selective mutations, where E345P, G377P, H347F, E346C, and E346F notably enhanced stability. By conducting alanine scanning, the essential residues in MoLAC14 were identified, and the L532A mutation further boosted magnolol production to an unprecedented level of 148.83 mg/L. Our findings not only elucidated the key enzymes for chavicol to magnolol conversion, but also laid the groundwork for synthetic biology-driven magnolol production, thereby providing valuable insights into M. officinalis biology and comparative plant science.
Collapse
Affiliation(s)
- Yue Yang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an 710072, China; (Y.Y.); (Z.L.); (H.Z.); (Z.L.)
| | - Zihe Li
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an 710072, China; (Y.Y.); (Z.L.); (H.Z.); (Z.L.)
| | - Hang Zong
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an 710072, China; (Y.Y.); (Z.L.); (H.Z.); (Z.L.)
| | - Shimeng Liu
- Jiaxing Synbiolab Biotechnology Co., Ltd., Jiaxing 314006, China; (S.L.); (Q.D.); (H.W.); (X.W.); (L.H.); (C.L.)
| | - Qiuhui Du
- Jiaxing Synbiolab Biotechnology Co., Ltd., Jiaxing 314006, China; (S.L.); (Q.D.); (H.W.); (X.W.); (L.H.); (C.L.)
| | - Hao Wu
- Jiaxing Synbiolab Biotechnology Co., Ltd., Jiaxing 314006, China; (S.L.); (Q.D.); (H.W.); (X.W.); (L.H.); (C.L.)
| | - Zhenzhu Li
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an 710072, China; (Y.Y.); (Z.L.); (H.Z.); (Z.L.)
| | - Xiao Wang
- Jiaxing Synbiolab Biotechnology Co., Ltd., Jiaxing 314006, China; (S.L.); (Q.D.); (H.W.); (X.W.); (L.H.); (C.L.)
| | - Lihui Huang
- Jiaxing Synbiolab Biotechnology Co., Ltd., Jiaxing 314006, China; (S.L.); (Q.D.); (H.W.); (X.W.); (L.H.); (C.L.)
| | - Changlong Lai
- Jiaxing Synbiolab Biotechnology Co., Ltd., Jiaxing 314006, China; (S.L.); (Q.D.); (H.W.); (X.W.); (L.H.); (C.L.)
| | - Meide Zhang
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi 445000, China;
| | - Wen Wang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an 710072, China; (Y.Y.); (Z.L.); (H.Z.); (Z.L.)
| | - Xianqing Chen
- Jiaxing Synbiolab Biotechnology Co., Ltd., Jiaxing 314006, China; (S.L.); (Q.D.); (H.W.); (X.W.); (L.H.); (C.L.)
| |
Collapse
|
2
|
Poole CF. Sample preparation for planar chromatography. J Sep Sci 2023; 46:e2300071. [PMID: 36965178 DOI: 10.1002/jssc.202300071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/18/2023] [Accepted: 03/19/2023] [Indexed: 03/27/2023]
Abstract
High-performance thin-layer chromatography has favorable properties for high-throughput separations with a high matrix tolerance. Sample preparation, however, is sometimes required to control specific matrix interferences and to enhance the detectability of target compounds. Trends in contemporary applications have shifted from absorbance and fluorescence detection to methods employing bioassays and mass spectrometry. Traditional methods (shake-flask, heat at reflux, Soxhlet, and hydrodistillation) are being challenged by automated instrumental approaches (ultrasound-assisted and microwave-assisted solvent extraction, pressurized liquid extraction, and supercritical fluid extraction) and the quick, easy cheap, efficient, rugged, and safe extraction method for faster and streamlined sample processing. Liquid-liquid extraction remains the most widely used approach for sample clean-up with increasing competition from solid-phase extraction. On-layer sample, clean-up by planar solid-phase extraction is increasingly used for complex samples and in combination with heart-cut multimodal systems. The automated spray-on sample applicator, the elution head interface, biological detection of target and non-target compounds, and straightforward mass spectrometric detection are highlighted as the main factors directing current interest toward faster and simpler sample workflows, analysis of more complex samples, and the determination of minor contaminants requiring high concentration factors.
Collapse
Affiliation(s)
- Colin F Poole
- Department of Chemistry, Wayne State University, Detroit, Michigan, USA
| |
Collapse
|
3
|
Vázquez A, Tabanca N, Kendra PE. HPTLC Analysis and Chemical Composition of Selected Melaleuca Essential Oils. Molecules 2023; 28:molecules28093925. [PMID: 37175338 PMCID: PMC10180325 DOI: 10.3390/molecules28093925] [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: 04/07/2023] [Revised: 04/28/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
Tea tree oil (TTO) is a volatile essential oil obtained by distillation, mainly from the Australian native plant Melaleuca alternifolia (Maiden & Betche) Cheel (Myrtaceae). In this study, a comparative analysis of the chemical constituents of seven tea tree oils (M. alternifolia) and four other Melaleuca spp. oils (M. cajuputi, (MCa), two chemotypes of M. quinquenervia, (MNe and MNi), and M. ericifolia (MRo)) was carried out using gas chromatography-mass spectrometry (GC-MS) and high-performance thin-layer chromatography (HPTLC). Among the seven TTOs, terpinen-4-ol (37.66-44.28%), γ-terpinene (16.42-20.75%), α-terpinene (3.47-12.62%), α-terpineol (3.11-4.66%), and terpinolene (2.75-4.19%) were the most abundant compounds. On the other hand, the most abundant compounds of the other Melaleuca oils varied, such as 1,8-cineole (64.63%) in MCa oil, (E)-nerolidol (48.40%) and linalool (33.30%) in MNe oil, 1,8-cineole (52.20%) in MNi oil, and linalool (38.19%) and 1,8-cineole (27.57%) in MRo oil. HPTLC fingerprinting of Melaleuca oils enabled the discrimination of TTO oils from other Melaleuca spp. oils. Variation was observed in the profile of the Rf values among EOs. The present study shows that HPTLC is one of the best ways to identify and evaluate the quality control in authenticating TTOs, other Melaleuca EOs, or EOs from other species within the Myrtaceae.
Collapse
Affiliation(s)
- Aimé Vázquez
- United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Subtropical Horticulture Research Station (SHRS), Miami, FL 33158, USA
| | - Nurhayat Tabanca
- United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Subtropical Horticulture Research Station (SHRS), Miami, FL 33158, USA
| | - Paul E Kendra
- United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Subtropical Horticulture Research Station (SHRS), Miami, FL 33158, USA
| |
Collapse
|
4
|
Segmented two-dimensional liquid chromatography. Proof of concept study. J Chromatogr A 2023; 1691:463811. [PMID: 36731333 DOI: 10.1016/j.chroma.2023.463811] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 01/26/2023]
Abstract
The separation in liquid chromatography is defined either by the space domain where it proceeds until the least retained analyte reaches the outlet of the column or by the time when individual analytes elute out of the column. These two approaches lead to the four possible combinations of two-dimensional liquid chromatography with online space x time coupling being the least experimentally feasible. Here, we show the development of a novel two-dimensional liquid chromatography method combining separation defined by space and the conventional elution-based separation. First-dimension column consisted of four capillary segments coupled serially via two-position six-port valves allowing an online and comprehensive transfer of analytes from the first to the second dimension. After initial experiments using homemade monolithic capillary columns, we tested commercially available columns in both dimensions. We ended with the combination of packed capillary columns in the first dimension and monolithic capillary column in the second dimension. We used a reversed-phase retention mechanism in the first spatial dimension, while HILIC was in the second, time-based dimension. We also developed a theoretical model to describe the proposed two-dimensional separation that was further confirmed by utilizing both an isocratic and gradient elution in the second dimension. Finally, we applied our experimental setup to separate neurotransmitters contained in human urine.
Collapse
|
5
|
Kowalska T, Sajewicz M. Thin-Layer Chromatography (TLC) in the Screening of Botanicals-Its Versatile Potential and Selected Applications. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196607. [PMID: 36235143 PMCID: PMC9572063 DOI: 10.3390/molecules27196607] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/26/2022] [Accepted: 09/30/2022] [Indexed: 11/07/2022]
Abstract
The aim of this paper is to present a comprehensive overview of the main aims and scopes in screening of botanicals, a task of which thin-layer chromatography (TLC) is, on an everyday basis, confronted with and engaged in. Stunning omnipresence of this modest analytical technique (both in its standard format (TLC) and the high-performance one (HPTLC), either hyphenated or not) for many analysts might at a first glance appear chaotic and random, with an auxiliary rather than leading role in research, and not capable of issuing meaningful final statements. Based on these reflections, our purpose is not to present a general review paper on TLC in screening of botanicals, but a blueprint rather (illustrated with a selection of practical examples), which highlights a sovereign and important role of TLC in accomplishing the following analytical tasks: (i) solving puzzles related to chemotaxonomy of plants, (ii) screening a wide spectrum of biological properties of plants, (iii) providing quality control of herbal medicines and alimentary and cosmetic products of biological origin, and (iv) tracing psychoactive plants under forensic surveillance.
Collapse
|
6
|
Feng C, Lyu Y, Gong L, Wang J. Therapeutic Potential of Natural Products in the Treatment of Renal Cell Carcinoma: A Review. Nutrients 2022; 14:nu14112274. [PMID: 35684073 PMCID: PMC9182762 DOI: 10.3390/nu14112274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 12/13/2022] Open
Abstract
Renal cell carcinoma (RCC) is a common cancer of the urinary system. The potential therapeutic effects of certain natural products against renal cell carcinoma have been reported both in vivo and in vitro, but no reviews have been published classifying and summarizing the mechanisms of action of various natural products. In this study, we used PubMed and Google Scholar to collect and screen the recent literature on natural products with anti-renal-cancer effects. The main mechanisms of action of these products include the induction of apoptosis, inhibition of angiogenesis, inhibition of metastasis and reduction of drug resistance. In total, we examined more than 30 natural products, which include kahweol acetate, honokiol, englerin A and epigallocatechin-3-gallate, among others, have demonstrated a variety of anti-renal-cancer effects. In conclusion, natural products may have a wider application in kidney cancer than previously believed and are potential candidates for treatment in RCC.
Collapse
Affiliation(s)
- Chenchen Feng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 100000, China; (C.F.); (L.G.)
- Department of Urology, Huashan Hospital, Fudan University, Shanghai 200040, China;
| | - Yinfeng Lyu
- Department of Urology, Huashan Hospital, Fudan University, Shanghai 200040, China;
| | - Lingxiao Gong
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 100000, China; (C.F.); (L.G.)
| | - Jing Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 100000, China; (C.F.); (L.G.)
- Correspondence:
| |
Collapse
|
7
|
Santos AM, Santos MM, Nascimento Júnior JAC, Brito JRLR, de Araújo Andrade T, Frank LA, Serafini MR. Mapping of New Pharmacological Alternatives in the Face of the Emergence of Antibiotic Resistance in COVID-19 Patents Treated for Opportunistic Respiratory Bacterial Pathogens. RECENT ADVANCES IN ANTI-INFECTIVE DRUG DISCOVERY 2022; 17:34-53. [PMID: 35593343 DOI: 10.2174/1574891x16666220518142347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 12/12/2021] [Accepted: 03/16/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The increase in bacterial resistance against antibiotics is thought to be another type of pandemic after COVID-19. Emergency treatment based on antibiotics is a major influence in increasing this resistance. Bacteria, such as Klebsiella pneumoniae, are the most affected by the indiscriminate use of antibiotics, since they are resistant to most antibiotics currently available on the market. OBJECTIVE This review aimed to evaluate patents of new drugs and formulations, for the treatment of infections caused by Klebsiella pneumoniae. METHODS The present patent review was carried out through a specialized search database Espacenet. The selection was based on the criteria of patents published from 2010 to May 2021, in any language, and containing the keywords in title or abstract. Also, a research was performed on the PubMed database, using the inclusion criteria. RESULTS Twenty-two patents were selected for the analysis according to the aim of the study. The advance of new patents has been mostly observed in the World Intellectual Property Organization, China, and United States. The results showed that the main approach was the drug association, followed by drug carriers, new isolated products, and vaccines. CONCLUSION It has been observed that few studies use new drug alternatives for the treatment, probably due to the higher cost of the development and lack of investments. The effectiveness and safety of these therapies depend on the acceptance, the correct prescription, and rational use of medicines. Therefore, this review can further develop new treatments as alternatives against Klebsiella pneumoniae and pneumonia caused by it.
Collapse
Affiliation(s)
| | - Mariana Mendonça Santos
- Postgraduate Program in Health Sciences, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - José Adão Carvalho Nascimento Júnior
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | | | - Tatianny de Araújo Andrade
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - Luiza Abrahão Frank
- Department of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Mairim Russo Serafini
- Department of Pharmacy, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
- Postgraduate Program in Health Sciences, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
- Postgraduate Program in Pharmaceutical Sciences, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| |
Collapse
|
8
|
Liu X, Li Y, Yang Q, Cai H, Wang L, Zhao X. Improving the antioxidant activity of natural antioxidant honokiol by introducing the amino group. J Mol Model 2021; 27:350. [PMID: 34757484 DOI: 10.1007/s00894-021-04977-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/03/2021] [Indexed: 12/18/2022]
Abstract
Exploring and synthesizing the compounds with stronger antioxidant activity have always been the goal of researchers. Herein, the substitution effects of the amino (NH2-) group with the excellent electron-donating ability in different positions on the antioxidant activity of Honokiol (Hon) were systematically explored by using the quantum chemistry calculation based on the density functional theory method. The three possible antioxidant mechanisms of Hon and its four NH2-substituted derivatives (Hon1-Hon4), containing the hydrogen atom transfer (HAT), single electron transfer followed by proton transfer (SET-PT), and sequential proton loss electron transfer (SPLET), were explored in depth considering the gas and solvent phases. In addition, the frontier molecular orbital energies, natural bond orbital (NBO) charge population, and global descriptive parameters were used to study their antioxidant activity. The results indicate that compared with the original molecule Hon, the NH2 substituents would have the stronger antioxidant activity. Moreover, the radical scavenging process of Hon and its derivatives has a disposition to the HAT and SPLET mechanisms in the gas and solvent phases, respectively. Meaningfully, owing to the lowest bond dissociation enthalpy and proton affinity values, Hon4 would show the most prominent antioxidant activity by comparison with the other compounds. In conclusion, this work will provide the purposeful reference for designing and synthesizing the antioxidants with more outstanding performance.
Collapse
Affiliation(s)
- Xiaohu Liu
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China.,Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China
| | - Yuanzuo Li
- College of Science, Northeast Forestry University, Harbin, 150040, China
| | - Qilei Yang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China.,Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China
| | - Hongda Cai
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China.,Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China
| | - Lingling Wang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China. .,Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China.
| | - Xiuhua Zhao
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China. .,Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, China.
| |
Collapse
|
9
|
Lin Y, Li Y, Zeng Y, Tian B, Qu X, Yuan Q, Song Y. Pharmacology, Toxicity, Bioavailability, and Formulation of Magnolol: An Update. Front Pharmacol 2021; 12:632767. [PMID: 33815113 PMCID: PMC8010308 DOI: 10.3389/fphar.2021.632767] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/15/2021] [Indexed: 12/16/2022] Open
Abstract
Magnolol (MG) is one of the primary active components of Magnoliae officinalis cortex, which has been widely used in traditional Chinese and Japanese herbal medicine and possesses a wide range of pharmacological activities. In recent years, attention has been drawn to this component due to its potential as an anti-inflammatory and antitumor drug. To summarize the new biological and pharmacological data on MG, we screened the literature from January 2011 to October 2020. In this review, we provide an actualization of already known anti-inflammatory, cardiovascular protection, antiangiogenesis, antidiabetes, hypoglycemic, antioxidation, neuroprotection, gastrointestinal protection, and antibacterial activities of MG. Besides, results from studies on antitumor activity are presented. We also summarized the molecular mechanisms, toxicity, bioavailability, and formulations of MG. Therefore, we provide a valid cognition of MG.
Collapse
Affiliation(s)
- Yiping Lin
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuke Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuanlian Zeng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Bin Tian
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaolan Qu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qianghua Yuan
- Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ying Song
- Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| |
Collapse
|