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Taratynova MO, Tikhonova EE, Fedyaeva IM, Dementev DA, Yuzbashev TV, Solovyev AI, Sineoky SP, Yuzbasheva EY. Boosting Geranyl Diphosphate Synthesis for Linalool Production in Engineered Yarrowia lipolytica. Appl Biochem Biotechnol 2024; 196:1304-1315. [PMID: 37392322 DOI: 10.1007/s12010-023-04581-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2023] [Indexed: 07/03/2023]
Abstract
Linalool is a pleasant-smelling monoterpenoid widely found in the essential oils of most flowers. Due to its biologically active properties, linalool has considerable commercial potential, especially in the food and perfume industries. In this study, the oleaginous yeast Yarrowia lipolytica was successfully engineered to produce linalool de novo. The (S)-linalool synthase (LIS) gene from Actinidia argute was overexpressed to convert geranyl diphosphate (GPP) into linalool. Flux was diverted from farnesyl diphosphate (FPP) synthesis to GPP by introducing a mutated copy of the native ERG20F88W-N119W gene, and CrGPPS gene from Catharanthus roseus on its own and as part of a fusion with LIS. Disruption of native diacylglycerol kinase enzyme, DGK1, by oligo-mediated CRISPR-Cas9 inactivation further increased linalool production. The resulting strain accumulated 109.6 mg/L of linalool during cultivation in shake flasks with sucrose as a carbon source. CrGPPS expression in Yarrowia lipolytica increased linalool accumulation more efficiently than the ERG20F88W-N119W expression, suggesting that the increase in linalool production was predominantly influenced by the level of GPP precursor supply.
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Affiliation(s)
- Maria O Taratynova
- NRC "Kurchatov Institute", Kurchatov Genomic Center, sq. Academician Kurchatova, 1, Moscow, 123182, Russia.
| | - Ekaterina E Tikhonova
- NRC "Kurchatov Institute", Kurchatov Genomic Center, sq. Academician Kurchatova, 1, Moscow, 123182, Russia
| | - Iuliia M Fedyaeva
- NRC "Kurchatov Institute", Kurchatov Genomic Center, sq. Academician Kurchatova, 1, Moscow, 123182, Russia
| | - Dmitry A Dementev
- NRC "Kurchatov Institute", Kurchatov Genomic Center, sq. Academician Kurchatova, 1, Moscow, 123182, Russia
| | - Tigran V Yuzbashev
- Plant Sciences and the Bioeconomy, Rothamsted Research, Harpenden, AL5 2JQ, West Common, UK
| | - Andrey I Solovyev
- Gamaleya National Research Center of Epidemiology and Microbiology, Russian Ministry of Health, Gamaleya St. 18, Moscow, 123098, Russia
| | - Sergey P Sineoky
- NRC "Kurchatov Institute", Kurchatov Genomic Center, sq. Academician Kurchatova, 1, Moscow, 123182, Russia
| | - Evgeniya Y Yuzbasheva
- BioMediCan Inc, 40471 Encyclopedia Circle, Fremont, CA, 94538, USA
- BioKai Inc, 40471 Encyclopedia Circle, Fremont, CA, 94538, USA
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Yang HD, Tang ZS, Xue TT, Xu HL, Hou BL, Zhu YY, Su ZH, Xu HB. Monoterpenoids from the root bark of Acanthopanax gracilistylus and their inhibitory effects on neutrophil elastase, 5-lipoxygenase, andcyclooxygenase-2 in vitro. Phytochemistry 2023; 215:113851. [PMID: 37683990 DOI: 10.1016/j.phytochem.2023.113851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 09/04/2023] [Accepted: 09/04/2023] [Indexed: 09/10/2023]
Abstract
Twenty-four monoterpenoids, including three previously undescribed compounds (1-3), were isolated from the root bark of Acanthopanax gracilistylus W. W. Smith (Acanthopanacis Cortex). Their structures were unambiguously established based on spectroscopic analysis (HR-ESIMS, IR, 1D, and 2D NMR), and the absolute configurations of 1-3 were elucidated by comparing their experimental and calculated electronic circular dichroism spectra. In addition, the structure of 8 was confirmed by single-crystal X-ray diffraction. The inhibitory activities of 1-24 against neutrophil elastase, 5-lipoxygenase, and cyclooxygenase-2 (COX-2) were studied in vitro for the first time, and the results showed that compound 24 possessed a significant inhibitory effect on COX-2 with an IC50 value of 1.53 ± 0.10 μΜ. This research first reported the presence of monoterpenoids in Acanthopanacis Cortex, including one monoterpenoid 2 with an unusual 4/5 bicyclic lactone system, and compounds 4 and 5 have never been reported in nature.
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Affiliation(s)
- Hao-Dong Yang
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China
| | - Zhi-Shu Tang
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China; China Academy of Chinese Medical Sciences, Beijing, 100700, PR China
| | - Tao-Tao Xue
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China
| | - Huai-Li Xu
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China
| | - Bao-Long Hou
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China
| | - Ya-Ya Zhu
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China
| | - Zeng-Hu Su
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China
| | - Hong-Bo Xu
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, 712083, Xianyang, PR China.
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Godse R, Bawane H, Rajkhowa R, Tripathi J, Kulkarni R. Comprehensive in situ and ex situ β-glucosidase-assisted assessment reveals Indian mangoes as reservoirs of glycosidic aroma precursors. Food Res Int 2023; 173:113355. [PMID: 37803658 DOI: 10.1016/j.foodres.2023.113355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 10/08/2023]
Abstract
Mango, a valued commercial fruit in India is popular mostly because of its attractive flavour. Glycosidically bound volatiles (GBV), an underrepresented warehouse of aroma, remain completely unexplored in Indian mangoes. In this study, GBV were profiled in pulps and peels of 10 Indian mango cultivars, leading to detection of 66 GBV which were dominated by monoterpenoids and phenolics. Peels were quantitatively and qualitatively richer in GBV than pulps. Hierarchical clustering and principal component analysis indicated higher contribution of peel GBV to the distinctness of cultivars. Linalool, geraniol, and eugenol were the significant contributors based on the odour units. Direct β-glucosidase treatment to the juice resulted in the release of lesser number of volatiles than those released from the purified GBV extracts. Apart from providing a comprehensive catalogue of GBV in mangoes, our data suggests the need of critical assessment of the usefulness of β-glucosidases in aroma improvement of fruit juices.
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Affiliation(s)
- Ravish Godse
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune 412115, India.
| | - Hemangi Bawane
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune 412115, India.
| | - Riyakshi Rajkhowa
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune 412115, India.
| | - Jyoti Tripathi
- Food Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
| | - Ram Kulkarni
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune 412115, India.
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Zhao X, Wu H, Yue S, Chen X, Huang Y, Cao H, Liao M. Role of CYP6MS subfamily enzymes in detoxification of Sitophilus zeamais after exposure to terpinen-4-ol and limonene. Pestic Biochem Physiol 2023; 193:105426. [PMID: 37248004 DOI: 10.1016/j.pestbp.2023.105426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/03/2023] [Accepted: 04/09/2023] [Indexed: 05/31/2023]
Abstract
Food security is an important basis and guarantee to national safety, the loss caused by storage pests was a serious problem which affects the food security widely. Frequent application of chemical pesticides caused several critical crises including the development of resistance, pesticide residues, environmental pollution, and exposure risk to human or non-target organisms. The utilization of volatile components acts as a natural alternative for controlling storage pests has aroused extensive interest in recent years. It has been reported that terpinene-4-ol and limonene showed significant insecticidal activity against Sitophilus zeamais in our previous studies, which was evaluated to have strong influences to CYP450 genes. To determine the links and roles of related genes, we identified the SzCYP6MS subfamily genes which encoded a putative protein of 493 or 494 amino acids. Then, the expression of four CYP6MS subfamily genes were increased significantly under the fumigation stress by terpinen-4-ol and limonene, which was determined by the RT-qPCR analysis compared with non-fumigated colonies. In addition, we determined that RNAi-mediated CYP6MS genes knockdown significantly increased the sensitivity of S. zeamais to terpinen-4-ol and limonene, the mortality rates of insects with knocked down CYP6MS1, CYP6MS5, CYP6MS6, CYP6MS8, and CYP6MS9 genes increased by 25%, 25%, 16%, 17%, and 4% in terpinen-4-ol treatment groups and by 29%, 25%, 15%, 22%, and 3% in limonene treatment groups compared with that in the control groups, respectively. Finally, it was validated that CYP6MS5 exhibited the most stable binding with terpinen-4-ol that was similar to the result between CYP6MS8 and limonene which were verified by molecular docking analysis. In together, this study demonstrates the potential of terpinen-4-ol and limonene used as novel botanical pesticides to control storage pests, thereby reducing application of chemical pesticides and postponing resistance development.
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Affiliation(s)
- Xinping Zhao
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China
| | - Hailong Wu
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China
| | - Shuaili Yue
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China
| | - Xin Chen
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China
| | - Yong Huang
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China
| | - Haiqun Cao
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China
| | - Min Liao
- Anhui Province Engineering Laboratory for Green Pesticide Development and Application, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Anhui Province Key Laboratory of Crop Integrated Pest Management, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China.
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Whaley AO, Ivkin DY, Zhaparkulova KA, Olusheva IN, Serebryakov EB, Smirnov SN, Semivelichenko ED, Grishina AY, Karpov AA, Eletckaya EI, Kozhanova KK, Ibragimova LN, Tastambek KT, Seitaliyeva AM, Terninko II, Sakipova ZB, Shikov AN, Povydysh MN, Whaley AK. Chemical composition and cardiotropic activity of Ziziphora clinopodioides subsp. bungeana (Juz.) Rech.f. J Ethnopharmacol 2023:116660. [PMID: 37253397 DOI: 10.1016/j.jep.2023.116660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/13/2023] [Accepted: 05/17/2023] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ziziphora clinopodioides subsp. bungeana (Juz.) Rech.f. is a subshrub that is widely distributed in China, Kazakhstan, Kyrgyzstan, Mongolia, Russia, Tajikistan, Turkmenistan, and Uzbekistan. The species is used in traditional medicine for the relief of symptoms connected to cardiovascular diseases like coronary heart disease or hypertension. AIM OF THE STUDY was to validate traditional use of Z. clinopodioides subsp. bungeana for the treatment of coronary hearth diseases using in vivo models and to find active compounds responsible for the activity. MATERIALS AND METHODS Multiple extracts were obtained from the aerial parts of Z. clinopodioides subsp. bungeana using maceration, liquid-liquid extraction, CO2 extraction and ultrasound-assisted extraction. Preliminary screening studies for the evaluation of the efficacy of Z. clinopodioides subsp. bungeana extracts on the model of hemic hypoxia were performed. The most effective samples were selected and included in the main study. Stage 2 of the study evaluated the cardiotropic activity of the selected extracts on a model of chronic heart failure. Preparations were administered to animals intragastrically once a day for 28 days. For the isolation of individual compounds plant material was extracted with 96% ethanol. The obtained crude extract was sequentially extracted with n-hexane and dichloromethane and separated by chromatography on a Diaion HP-20 column. The obtained fractions were further subjected to Sephadex LH-20 column chromatography and eluted isocratically with 96% ethanol (EtOH) to yield subfractions, which were further separated by preparative HPLC to obtain 13 individual compounds. RESULTS Extracts obtained from Ziziphora clinopodioides subsp. bungeana (Juz.) Rech.f. herb were subjected to pharmacological screening for the evaluation of their efficacy on hemic hypoxia. Based on the obtained results, out of the sixteen tested extracts two (AR and US 60%) were selected for further evaluation of their cardiotropic activity. Modeling of chronic heart failure was carried out in accordance with the following stages: 1) anesthesia with chloral hydrate at a dose of 450 mg/kg, intraperitoneally, 2) artificial ventilation of the lungs, 3) thoracotomy, 4) modeling of permanent ischemic or ischemic-reperfusion damage. Both extracts effected the indicators of contraction and output, comparable to the reference drug - Monopril. Based on the extraction methods used to obtain RAF and US60 and data from the literature, it can be assumed that they contain compounds with medium polarity, including polyphenols and terpenoids. At the next stage three previously undescribed monoterpenoid derivatives - Ziziphoric acid (1), Ziziphoroside D (2) and 6'-malonylziziphoroside A (3), along with two previously described megastigmane glucosides - blumenol C glucoside (4), blumenol C 9-O-(6'-O-malonyl-beta-D-glucopyranoside (5) and two previously described monoterpenoids 7a-hydroxymintlactone (6), 7-hydroxypiperitone (7) together with six polyphenols - pinocembrine-7-O-rutinoside (8), chrysine-7-O-rutinoside (9), acacetin-7-O-rutinoside (10), luteolin-7-O-rutinoside (11), rutin (12) and rosmarinic acid (13) were isolated from Z. clinopodioides subsp. bungeana extracts. CONCLUSION Our results support the traditional use of Z. clinopodioides subsp. bungeana for the treatment of coronary diseases. As a result of Z. clinopodioides subsp. bungeana extracts screening in vivo, two extracts were selected as potential cardiotropic agents. Phytochemical analysis of the plant material led to the isolation of five terpenoid derivatives, two megastigmane glycosides, five flavonoids and one cinnamic acid derivative, which could be responsible for the reported biological activity. Future experiments are required to understand the mechanisms of action for the isolated compounds.
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Affiliation(s)
- A O Whaley
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacognosy, Russia
| | - D Y Ivkin
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacology and Clinical Pharmacology, Russia
| | - K A Zhaparkulova
- School of Pharmacy, S.D. Asfendiyarov Kazakh National Medical University, Tole-bi 94, 050012, Almaty, Kazakhstan
| | - I N Olusheva
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacognosy, Russia
| | - E B Serebryakov
- Saint Petersburg State University, Universitetskii pr. 26, St. Petersburg, 198504, Russia
| | - S N Smirnov
- Saint Petersburg State University, Universitetskii pr. 26, St. Petersburg, 198504, Russia
| | - E D Semivelichenko
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacology and Clinical Pharmacology, Russia
| | - A Yu Grishina
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacology and Clinical Pharmacology, Russia
| | - A A Karpov
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacology and Clinical Pharmacology, Russia
| | - E I Eletckaya
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacology and Clinical Pharmacology, Russia
| | - K K Kozhanova
- School of Pharmacy, S.D. Asfendiyarov Kazakh National Medical University, Tole-bi 94, 050012, Almaty, Kazakhstan
| | - L N Ibragimova
- School of Pharmacy, S.D. Asfendiyarov Kazakh National Medical University, Tole-bi 94, 050012, Almaty, Kazakhstan
| | - K T Tastambek
- School of Pharmacy, S.D. Asfendiyarov Kazakh National Medical University, Tole-bi 94, 050012, Almaty, Kazakhstan; Ecology Research Institute, Khoja Akhmet Yassawi International Kazakh-Turkish University, Turkistan, 161200, Kazakhstan; Department of Biotechnology, M. Auezov South Kazakhstan University, Shymkent, 160012, Kazakhstan
| | - A M Seitaliyeva
- Higher School of Medicine, Al-Farabi Kazakh National University, Tole-bi 96, 050012, Almaty, Kazakhstan
| | - I I Terninko
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Center for Quality Control of Medicines, Russia
| | - Z B Sakipova
- School of Pharmacy, S.D. Asfendiyarov Kazakh National Medical University, Tole-bi 94, 050012, Almaty, Kazakhstan
| | - A N Shikov
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacognosy, Russia
| | - M N Povydysh
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacognosy, Russia.
| | - A K Whaley
- Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg, Department of Pharmacognosy, Russia
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Aihaiti K, Li J, Xu NN, Tang D, Aisa HA. Monoterpenoid derivatives from Hyssopus cuspidatus Boriss. and their bioactivities. Fitoterapia 2023; 165:105432. [PMID: 36638847 DOI: 10.1016/j.fitote.2023.105432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/08/2023] [Accepted: 01/08/2023] [Indexed: 01/12/2023]
Abstract
Six undescribed monoterpenoids, together with twelve known compounds were isolated and identified from Hyssopus cuspidatus Boriss. Their structures were established by spectroscopic analysis, and the absolute configurations were established by ECD calculations and single-crystal X-ray diffraction crystallography. The isolated compounds were tested for their anti-inflammatory, antibacterial and antitumor activities. Most of the compounds showed potent anti-inflammatory activities. Among them, 3β-hydroxy-7,8-dihydro-β-ionone (8), oleanolic acid (17) and acetylpleamolic acid (18) showed strong anti-inflammatory activity against IL-6 and TNF-α in lipopolysaccharide (LPS) stimulated RAW 264.7 cells. Several compounds showed moderate inhibitory activities against Staphylococcus aureus, Candida albicans, and Escherichia coli. And (4S)-p-menth-l-ene-7,8-diol 8-O-β-D-glucopyranoside (16) showed antitumor activities against MCF-8 and HT-29 cell lines with IC50 values of 93.39 ± 3.69 and 71.89 ± 2.94 μM, respectively. Oleanolic acid (17) showed moderate antitumor activity against HT-29 cell lines with an IC50 value of 52.62 ± 1.63 μM. In this study, the discovery of anti-inflammatory, antibacterial and antitumor components from H. cuspidatus could benefit further development and utilization of this plant.
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Guo K, Ren X, Zhou TT, Li T, Liu YC, Tao Y, Hu H, Li D, Liu Y, Li SH. Secondary metabolites from the Mongolian medicine Lomatogonium carinthiacum. Fitoterapia 2023; 165:105402. [PMID: 36577456 DOI: 10.1016/j.fitote.2022.105402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/26/2022]
Abstract
Systematic phytochemical investigation on the Mongolian medicinal herb Lomatogonium carinthiacum led to the isolation of 12 monoterpenoids including three new secoiridoids (1, 2 and 4) and one new iridoid glycoside (13), one new monoterpenoid alkaloid (3), and three new sesquiterpenoids (14-16). Comprehensive spectroscopic analysis (including 1D and 2D NMR, and HRESIMS) and quantum chemistry computations (including ECD and NMR calculations) were applied to elucidate their structures. Weak immunosuppressive activities were observed for the new isolates via inhibiting T cell proliferation and cytokine IFN-γ secretion in vitro.
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Affiliation(s)
- Kai Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Xue Ren
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Ting-Ting Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Tao Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Yan-Chun Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China
| | - Yang Tao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Hong Hu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Dan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Yan Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Sheng-Hong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, PR China.
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Grover P, Mehta L, Malhotra A, Kapoor G, Nagarajan K, Kumar P, Chawla V, Chawla PA. Exploring the Multitarget Potential of Iridoids: Advances and Applications. Curr Top Med Chem 2023; 23:371-388. [PMID: 36567288 DOI: 10.2174/1568026623666221222142217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 11/02/2022] [Accepted: 11/22/2022] [Indexed: 12/27/2022]
Abstract
Iridoids are secondary plant metabolites that are multitarget compounds active against various diseases. Iridoids are structurally classified into iridoid glycosides and non-glycosidic iridoids according to the presence or absence of intramolecular glycosidic bonds; additionally, iridoid glycosides can be further subdivided into carbocyclic iridoids and secoiridoids. These monoterpenoids belong to the cyclopentan[c]-pyran system, which has a wide range of biological activities, including antiviral, anticancer, antiplasmodial, neuroprotective, anti-thrombolytic, antitrypanosomal, antidiabetic, hepatoprotective, anti-oxidant, antihyperlipidemic and anti-inflammatory properties. The basic chemical structure of iridoids in plants (the iridoid ring scaffold) is biosynthesized in plants by the enzyme iridoid synthase using 8-oxogeranial as a substrate. With advances in phytochemical research, many iridoid compounds with novel structure and outstanding activity have been identified in recent years. Biologically active iridoid derivatives have been found in a variety of plant families, including Plantaginaceae, Rubiaceae, Verbenaceae, and Scrophulariaceae. Iridoids have the potential of modulating many biological events in various diseases. This review highlights the multitarget potential of iridoids and includes a compilation of recent publications on the pharmacology of iridoids. Several in vitro and in vivo models used, along with the results, are also included in the paper. This paper's systematic summary was created by searching for relevant iridoid material on websites such as Google Scholar, PubMed, SciFinder Scholar, Science Direct, and others. The compilation will provide the researchers with a thorough understanding of iridoid and its congeners, which will further help in designing a large number of potential compounds with a strong impact on curing various diseases.
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Affiliation(s)
- Parul Grover
- KIET School of Pharmacy, KIET Group of Institutions, Delhi-NCR, Ghaziabad, 201206, India
| | - Lovekesh Mehta
- Amity Institute of Pharmacy, Amity University, Noida, 201301, India
| | - Anjleena Malhotra
- KIET School of Pharmacy, KIET Group of Institutions, Delhi-NCR, Ghaziabad, 201206, India
| | - Garima Kapoor
- KIET School of Pharmacy, KIET Group of Institutions, Delhi-NCR, Ghaziabad, 201206, India
| | - Kandasamy Nagarajan
- KIET School of Pharmacy, KIET Group of Institutions, Delhi-NCR, Ghaziabad, 201206, India
| | - Parvin Kumar
- KIET Group of Institutions, Delhi-NCR, Ghaziabad, 201206, India
| | - Viney Chawla
- University Institute of Pharmaceutical Sciences and Research, Baba Farid University of Health Sciences, Faridkot, Punjab, India
| | - Pooja A Chawla
- Department of Pharmaceutical Chemistry and Analysis ISF College of Pharmacy, Moga, 142001, India
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9
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Fraternale D, Dufat H, Albertini MC, Bouzidi C, D’Adderio R, Coppari S, Di Giacomo B, Melandri D, Ramakrishna S, Colomba M. Chemical composition, antioxidant and anti-inflammatory properties of Monarda didyma L. essential oil. PeerJ 2022; 10:e14433. [PMID: 36438580 PMCID: PMC9686412 DOI: 10.7717/peerj.14433] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 10/31/2022] [Indexed: 11/22/2022] Open
Abstract
In the present study, Monarda didyma L. essential oil (isolated from the flowering aerial parts of the plant) was examined to characterize its chemotype and to evaluate, in addition to the quali-quantitative chemical analysis, the associated antioxidant and anti-inflammatory activities. The plants were grown in central Italy, Urbino (PU), Marche region. Different analyses (TLC, GC-FID, GC-MS and 1H-NMR) allowed the identification of twenty compounds among which carvacrol, p-cymene and thymol were the most abundant. On this basis, the chemotype examined in the present study was indicated as Monarda didyma ct. carvacrol. The antioxidant effect was assessed by DPPH assay. Moreover, this chemotype was investigated for the anti-inflammatory effect in an in vitro setting (i.e., LPS-stimulated U937 cells). The decreased expression of pro-inflammatory cytokine IL-6 and the increased expression of miR-146a are suggestive of the involvement of the Toll-like receptor-4 signaling pathway. Although further studies are needed to better investigate the action mechanism/s underlying the results observed in the experimental setting, our findings show that M. didyma essential oil is rich in bioactive compounds (mainly aromatic monoterpenes and phenolic monoterpenes) which are most likely responsible for its beneficial effect.
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Affiliation(s)
- Daniele Fraternale
- Department of Biomolecular Sciences, University of Urbino, Urbino, PU, Italy
| | - Hanh Dufat
- Produits Naturels, Analyse et Synthèse, CITCOM-UMR CNRS 8038—Faculté de Santé, Pharmacie, Université Paris Cité, Université de Paris, Paris, France
| | | | - Chouaha Bouzidi
- Produits Naturels, Analyse et Synthèse, CITCOM-UMR CNRS 8038—Faculté de Santé, Pharmacie, Université Paris Cité, Université de Paris, Paris, France
| | - Rossella D’Adderio
- Department of Biomolecular Sciences, University of Urbino, Urbino, PU, Italy
| | - Sofia Coppari
- Department of Biomolecular Sciences, University of Urbino, Urbino, PU, Italy
| | - Barbara Di Giacomo
- Department of Biomolecular Sciences, University of Urbino, Urbino, PU, Italy
| | - Davide Melandri
- U. Burns Center, Dermatology and Emilia Romagna Regional Skin Bank, M. Bufalini Hospital, Cesena, FC, Italy
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore
| | - Mariastella Colomba
- Department of Biomolecular Sciences, University of Urbino, Urbino, PU, Italy
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10
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Chernyshov VV, Popadyuk II, Yarovaya OI, Salakhutdinov NF. Nitrogen-Containing Heterocyclic Compounds Obtained from Monoterpenes or Their Derivatives: Synthesis and Properties. Top Curr Chem (Cham) 2022; 380:42. [PMID: 35951263 DOI: 10.1007/s41061-022-00399-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 06/17/2022] [Indexed: 10/15/2022]
Abstract
Directed transformation of available natural compounds with native biological activity is a promising area of research in organic and medicinal chemistry aimed at finding effective drug substances. The number of scientific publications devoted to the transformation of natural compounds and investigations of their pharmacological properties, in particular, monoterpenes and their nearest derivatives, increases every year. At the same time, the chemistry of nitrogen-containing heterocyclic compounds has been actively developed since the 1950s after the news that the benzimidazole core is an integral part of the structure of vitamin B12. At the time of writing this review, the data on chemical modifications of monoterpenes and their nearest derivatives leading to formation of compounds with a nitrogen-containing heterocycle core have not been summarized and systematized in terms of chemical transformations. In this review, we tried to summarize the literature data on the preparation and properties of nitrogen-containing heterocyclic compounds synthesized from monoterpenes/monoterpenoids and their nearest derivatives for the period from 2000 to 2021.
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11
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Bogdanova P, Vakh C, Bulatov A. A surfactant-mediated microextraction of synthetic dyes from solid-phase food samples into the primary amine-based supramolecular solvent. Food Chem 2022; 380:131812. [PMID: 34996637 DOI: 10.1016/j.foodchem.2021.131812] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 12/02/2021] [Accepted: 12/04/2021] [Indexed: 01/03/2023]
Abstract
An effective and simple surfactant-mediated microextraction of synthetic dyes from solid-phase food samples into the primary amine-based supramolecular solvents is presented for the first time. The developed procedure involved two stages: (i) an isolation of dyes from a solid-phase food sample into a micellar solution of the primary amine; (ii) a preconcentration of the extracted dyes into the supramolecular solvent phase generated from the obtained micellar solution under a coacervation process. The microextraction procedure was applied for the determination of synthetic dyes in confectionery, dried fruits, and spices samples. The supramolecular solvent formed from aqueous micelle aggregates of 1-octylamine due to coacervation induced by thymol provided maximum extraction recovery values for synthetic dyes. In the proposed two-stage extraction procedure the micellar solution of primary amine was a media for analytes isolation from solid-phase and their followed preconcentration.
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Affiliation(s)
- Polina Bogdanova
- Institute of Chemistry, Saint-Petersburg University, St.Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St., Petersburg 199034, Russia
| | - Christina Vakh
- Institute of Chemistry, Saint-Petersburg University, St.Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St., Petersburg 199034, Russia.
| | - Andrey Bulatov
- Institute of Chemistry, Saint-Petersburg University, St.Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St., Petersburg 199034, Russia
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12
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Liu Y, Ma X, Liang H, Stephanopoulos G, Zhou K. Monoterpenoid biosynthesis by engineered microbes. J Ind Microbiol Biotechnol 2021; 48:6380491. [PMID: 34601590 DOI: 10.1093/jimb/kuab065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 08/27/2021] [Indexed: 11/14/2022]
Abstract
Monoterpenoids are C10 isoprenoids and constitute a large family of natural products. They have been used as ingredients in food, cosmetics and therapeutic products. Many monoterpenoids such as linalool, geraniol, limonene and pinene are volatile and can be found in plant essential oils. Conventionally, these bioactive compounds are obtained from plant extracts by using organic solvents or by distillation method, which are costly and laborious if high purity product is desired. In recent years, microbial biosynthesis has emerged as alternative source of monoterpenoids with great promise for meeting the increasing global demand for these compounds. However, current methods of production are not yet at levels required for commercialization. Production efficiency of monoterpenoids in microbial hosts is often restricted by high volatility of the monoterpenoids, a lack of enzymatic activity and selectivity, and/or product cytotoxicity to the microbial hosts. In this review, we summarize advances in microbial production of monoterpenoids over the past three years with particular focus on the key metabolic engineering strategies for different monoterpenoid products. We also provide our perspective on the promise of future endeavors to improve monoterpenoid productivity.
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Affiliation(s)
- Yurou Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore.,Disruptive & Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology, Singapore
| | - Xiaoqiang Ma
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore
| | - Hong Liang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore.,Disruptive & Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology, Singapore
| | - Gregory Stephanopoulos
- Disruptive & Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology, Singapore.,Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Kang Zhou
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore.,Disruptive & Sustainable Technologies for Agricultural Precision, Singapore-MIT Alliance for Research and Technology, Singapore
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13
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Zhu K, Kong J, Zhao B, Rong L, Liu S, Lu Z, Zhang C, Xiao D, Pushpanathan K, Foo JL, Wong A, Yu A. Metabolic engineering of microbes for monoterpenoid production. Biotechnol Adv 2021; 53:107837. [PMID: 34555428 DOI: 10.1016/j.biotechadv.2021.107837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/07/2021] [Accepted: 09/14/2021] [Indexed: 12/29/2022]
Abstract
Monoterpenoids are an important class of natural products that are derived from the condensation of two five‑carbon isoprene subunits. They are widely used for flavouring, fragrances, colourants, cosmetics, fuels, chemicals, and pharmaceuticals in various industries. They can also serve as precursors for the production of many industrially important products. Currently, monoterpenoids are produced predominantly through extraction from plant sources. However, the small quantity of monoterpenoids in nature renders this method of isolation non-economically viable. Similarly impractical is the chemical synthesis of these compounds as they suffer from high energy consumption and pollutant discharge. Microbial biosynthesis, however, exists as a potential solution to these hindrances, but the transformation of cells into efficient factories remains a major impediment. Here, we critically review the recent advances in engineering microbes for monoterpenoid production, with an emphasis on categorized strategies, and discuss the challenges and perspectives to offer guidance for future engineering.
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Affiliation(s)
- Kun Zhu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Jing Kong
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Baixiang Zhao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Lanxin Rong
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Shiqi Liu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Zhihui Lu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Cuiying Zhang
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Dongguang Xiao
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
| | - Krithi Pushpanathan
- Chemical Engineering and Food Technology Cluster, Singapore Institute of Technology, Singapore 138683, Singapore.
| | - Jee Loon Foo
- Synthetic Biology Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; NUS Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, Singapore 117456, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
| | - Adison Wong
- Chemical Engineering and Food Technology Cluster, Singapore Institute of Technology, Singapore 138683, Singapore.
| | - Aiqun Yu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, No. 29 the 13th Street TEDA, Tianjin 300457, PR China.
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14
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Fang QW, Fu WW, Yang JL, Lu Y, Chen JC, Wu PY, Zhang X, Xu HX. New monoterpenoids from the stigmas of Crocus sativus. J Nat Med 2021; 76:102-109. [PMID: 34417964 DOI: 10.1007/s11418-021-01559-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 08/10/2021] [Indexed: 01/30/2023]
Abstract
One new compound, crocusatin M (1), and three new glycosidic compounds, crocusatins N-P (2-4), along with nine known compounds were isolated from the dried stigmas of Crocus sativus. The structures of new compounds were elucidated on the basis of spectroscopic analysis, and the absolute configurations of 1, 2, and 3 were unambiguously assigned by the comparison of experimental and calculated ECD data. This is the first report of the isolation of 4 with the HMG moiety from the genus Crocus. Compounds 1 and 4 exhibited weak anti-inflammatory activities on inhibiting lipopolysaccharide (LPS)-induced NO production.
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Affiliation(s)
- Qing-Wei Fang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Cai Lun Lu 1200, Shanghai, 201203, People's Republic of China
| | - Wen-Wei Fu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Cai Lun Lu 1200, Shanghai, 201203, People's Republic of China.
| | - Jin-Ling Yang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Cai Lun Lu 1200, Shanghai, 201203, People's Republic of China
| | - Yue Lu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Cai Lun Lu 1200, Shanghai, 201203, People's Republic of China
| | - Jiang-Cheng Chen
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Cai Lun Lu 1200, Shanghai, 201203, People's Republic of China
| | - Pei-Ying Wu
- Saffron Div. of Shanghai Traditional Chinese Medicine Co., Ltd, Shanghai, 200002, People's Republic of China
| | - Xue Zhang
- Saffron Div. of Shanghai Traditional Chinese Medicine Co., Ltd, Shanghai, 200002, People's Republic of China
| | - Hong-Xi Xu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Cai Lun Lu 1200, Shanghai, 201203, People's Republic of China. .,Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200002, People's Republic of China.
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15
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Scariot FJ, Pansera MS, Delamare APL, Echeverrigaray S. Citral and geraniol induce necrotic and apoptotic cell death on Saccharomyces cerevisiae. World J Microbiol Biotechnol 2021; 37:42. [PMID: 33547564 DOI: 10.1007/s11274-021-03011-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/19/2021] [Indexed: 01/13/2023]
Abstract
Essential oils and their main components, monoterpenes, have been proven to be important alternatives for the control of pathogenic and spoiling microorganisms, but the mode of action of these compounds is poorly understood. This work aimed to determine the mode of action of citral and geraniol on the model yeast Saccharomyces cerevisiae using a flow cytometry approach. Exponentially growing yeast cells were treated with different concentrations of citral and geraniol for 3 h, and evaluated for cell wall susceptibility to glucanase, membrane integrity, reactive oxygen species (ROS) accumulation, mitochondrial membrane potential, and metacaspase activity. Results provide strong evidence that citral and geraniol acute fungicidal activity against Saccharomyces cells involves the loss of membrane and cell wall integrity resulting in a dose-dependent apoptotic/necrotic cell death. However, yeast cells that escape this first cell membrane disruption, particularly evident on sub-lethal concentration, die by metacaspase-mediated apoptosis induced by the accumulation of intracellular ROS. The deleted mutant on the yca1 gene showed high tolerance to citral and geraniol.
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16
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Schempp FM, Hofmann KE, Mi J, Kirchner F, Meffert A, Schewe H, Schrader J, Buchhaupt M. Investigation of monoterpenoid resistance mechanisms in Pseudomonas putida and their consequences for biotransformations. Appl Microbiol Biotechnol 2020; 104:5519-5533. [PMID: 32296906 PMCID: PMC7275096 DOI: 10.1007/s00253-020-10566-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 03/05/2020] [Accepted: 03/20/2020] [Indexed: 12/14/2022]
Abstract
Monoterpenoids are widely used in industrial applications, e.g. as active ingredients in pharmaceuticals, in flavor and fragrance compositions, and in agriculture. Severe toxic effects are known for some monoterpenoids making them challenging compounds for biotechnological production processes. Some strains of the bacterium Pseudomonas putida show an inherent extraordinarily high tolerance towards solvents including monoterpenoids. An understanding of the underlying factors can help to create suitable strains for monoterpenoids de novo production or conversion. In addition, knowledge about tolerance mechanisms could allow a deeper insight into how bacteria can oppose monoterpenoid containing drugs, like tea tree oil. Within this work, the resistance mechanisms of P. putida GS1 were investigated using selected monoterpenoid-hypertolerant mutants. Most of the mutations were found in efflux pump promoter regions or associated transcription factors. Surprisingly, while for the tested monoterpenoid alcohols, ketone, and ether high efflux pump expression increased monoterpenoid tolerance, it reduced the tolerance against geranic acid. However, an increase of geranic acid tolerance could be gained by a mutation in an efflux pump component. It was also found that increased monoterpenoid tolerance can counteract efficient biotransformation ability, indicating the need for a fine-tuned and knowledge-based tolerance improvement for production strain development.Key points• Altered monoterpenoid tolerance mainly related to altered activity of efflux pumps.• Increased tolerance to geranic acid surprisingly caused by decreased export activity. • Reduction of export activity can be beneficial for biotechnological conversions.
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Affiliation(s)
- Florence Miramella Schempp
- DECHEMA-Forschungsinstitut, Industrial Biotechnology, Theodor-Heuss-Allee 25, 60486, Frankfurt am Main, Germany.,Faculty Biological Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438, Frankfurt am Main, Germany
| | - Katharina Elisabeth Hofmann
- DECHEMA-Forschungsinstitut, Industrial Biotechnology, Theodor-Heuss-Allee 25, 60486, Frankfurt am Main, Germany
| | - Jia Mi
- DECHEMA-Forschungsinstitut, Industrial Biotechnology, Theodor-Heuss-Allee 25, 60486, Frankfurt am Main, Germany
| | - Ferdinand Kirchner
- DECHEMA-Forschungsinstitut, Industrial Biotechnology, Theodor-Heuss-Allee 25, 60486, Frankfurt am Main, Germany
| | - Annika Meffert
- DECHEMA-Forschungsinstitut, Industrial Biotechnology, Theodor-Heuss-Allee 25, 60486, Frankfurt am Main, Germany
| | - Hendrik Schewe
- DECHEMA-Forschungsinstitut, Industrial Biotechnology, Theodor-Heuss-Allee 25, 60486, Frankfurt am Main, Germany
| | - Jens Schrader
- DECHEMA-Forschungsinstitut, Industrial Biotechnology, Theodor-Heuss-Allee 25, 60486, Frankfurt am Main, Germany
| | - Markus Buchhaupt
- DECHEMA-Forschungsinstitut, Industrial Biotechnology, Theodor-Heuss-Allee 25, 60486, Frankfurt am Main, Germany.
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17
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Abstract
The essential oil of perilla (Perilla frutescens) contains volatile low molecular weight compounds such as monoterpenes and phenylpropenes. The composition of the essential oil is classified into about ten chemotypes. The biosynthesis of these constituents is strictly controlled genetically. Among the compounds contained in perilla essential oil, the bioconversion of pure compounds such as perillaldehyde, limonene, and citral has been reported, but that of many other components has not. In addition, changes in the volatile components of raw plant material during brewing have also been investigated for wine and beer. In this study, we examined the bioconversion of perilla essential oil components by Saccharomyces cerevisiae during the brewing of liquor with perilla leaves. S. cerevisiae was added to the ethanol-water extract of dried leaves of P. frutescens and P. citriodora for seven essential oil types: perillaldehyde type, piperitenone type, perillene type, perillaketone type, elsholtziaketone type, citral type, and phenylpropanoid type. Volatile compounds in the reaction mixtures were analyzed by solid-phase microextraction (SPME)-GC-MS, revealing bioconversion of perillaldehyde, isoegomaketone, neral, and geranial by S. cerevisiae. Analysis of the conversion products suggests that they were formed by the reduction of C=C bonds and aldehydes, as well as by esterification and dehydration reactions.
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Affiliation(s)
- Michiru Kimura
- Department of Pharmacognosy, Graduate School of Pharmaceutical Science, Kyoto University, 46-29 Yoshida-Shimo-Adachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Michiho Ito
- Department of Pharmacognosy, Graduate School of Pharmaceutical Science, Kyoto University, 46-29 Yoshida-Shimo-Adachi-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
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18
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Goftari SN, Sadeghian H, Bahrami AR, Maleki F, Matin MM. Stylosin and some of its synthetic derivatives induce apoptosis in prostate cancer cells as 15-lipoxygenase enzyme inhibitors. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:1491-502. [PMID: 31297564 DOI: 10.1007/s00210-019-01689-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 06/28/2019] [Indexed: 01/22/2023]
Abstract
Overexpression of 15-lipoxygenase-1 (15-LOX-1) enzyme has been reported in prostate tumors, and its expression levels are associated with the degree of cancer malignancy. The aim of this study was to investigate inhibitory effects of stylosin and some similar synthetic monoterpenoids on 15-LOX and also their cytotoxic and anti-cancer activities on prostate cancer cells. Cytotoxicity of compounds was evaluated on prostate cancer cell line "PC-3" and normal human fibroblast "HFF3" cells using AlamarBlue reduction test. The inhibitory effects of the compounds against soybean 15-LOX, a commercially available enzyme, were also assessed. Finally, mechanism of cell death was investigated by flow cytometry. Some of these terpenoids had cytotoxic effects on PC-3 cells, and strong positive correlation was observed between the 15-LOX-1 inhibition potential and the cytotoxicity of the compounds. Moreover, flow cytometry results indicated that apoptosis was the predominant mechanism of induced cell death, which emphasizes the potential of these compounds in prostate cancer therapy. Among studied terpenoids, "fenchyl ferulate" exhibited about three times more cytotoxicity than cisplatin. Strong positive correlation observed between 15-LOX inhibition potential and cytotoxicity of the compounds indicates selective anti-cancer properties of the compounds might be exerted via inhibition of 15-LOX-1 in PC-3 cells. Furthermore, observed cytotoxicity is mediated through apoptosis, which is probably triggered via 15-LOX-1 inhibition.
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19
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Leferink NGH, Ranaghan KE, Karuppiah V, Currin A, van der Kamp MW, Mulholland AJ, Scrutton NS. Experiment and Simulation Reveal How Mutations in Functional Plasticity Regions Guide Plant Monoterpene Synthase Product Outcome. ACS Catal 2019; 8:3780-3791. [PMID: 31157124 PMCID: PMC6542672 DOI: 10.1021/acscatal.8b00692] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Monoterpenes (C10 isoprenoids) are a structurally diverse group of natural compounds that are attractive to industry as flavours and fragrances. Monoterpenes are produced from a single linear substrate, geranyl diphosphate, by a group of enzymes called the monoterpene cyclases/synthases (mTC/Ss) that catalyse high-energy cyclisation reactions involving unstable carbocation intermediates. Efforts towards producing monoterpenes via biocatalysis or metabolic engineering often result in the formation of multiple products due to the nature of the highly branched reaction mechanism of mTC/Ss. Rational engineering of mTC/Ss is hampered by the lack of correlation between the active site sequence and cyclisation type. We used available mutagenesis data to show that amino acids involved in product outcome are clustered and spatially conserved within the mTC/S family. Consensus sequences for three such plasticity regions were introduced in different mTC/S with increasingly complex cyclisation cascades, including the model enzyme limonene synthase (LimS). In all three mTC/S studied, mutations in the first two regions mostly give rise to products that result from premature quenching of the linalyl or α-terpinyl cations, suggesting that both plasticity regions are involved in the formation and stabilisation of cations early in the reaction cascade. A LimS variant with mutations in the second region (S454G, C457V, M458I), produced mainly more complex bicyclic products. QM/MM MD simulations reveal that the second cyclisation is not due to compression of the C2-C7 distance in the α-terpinyl cation, but is the result of an increased distance between C8 of the α-terpinyl cation and two putative bases (W324, H579) located on the other side of the active site, preventing early termination by deprotonation. Such insights into the impact of mutations can only be obtained using integrated experimental and computational approaches, and will aid the design of altered mTC/S activities towards clean monoterpenoid products.
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Affiliation(s)
- Nicole G. H. Leferink
- Manchester Synthetic Biology Research Centre for Fine and Speciality Chemicals (SYNBIOCHEM), Manchester Institute of Biotechnology, School of Chemistry, Faculty of Science and Engineering, University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
| | - Kara E. Ranaghan
- Centre for Computational Chemistry, School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Vijaykumar Karuppiah
- Manchester Synthetic Biology Research Centre for Fine and Speciality Chemicals (SYNBIOCHEM), Manchester Institute of Biotechnology, School of Chemistry, Faculty of Science and Engineering, University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
| | - Andrew Currin
- Manchester Synthetic Biology Research Centre for Fine and Speciality Chemicals (SYNBIOCHEM), Manchester Institute of Biotechnology, School of Chemistry, Faculty of Science and Engineering, University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
| | - Marc W. van der Kamp
- Centre for Computational Chemistry, School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
- School of Biochemistry, University of Bristol, Biomedical Sciences Building, University Walk, Bristol BS8 1TD, U.K
| | - Adrian J. Mulholland
- Centre for Computational Chemistry, School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K
| | - Nigel S. Scrutton
- Manchester Synthetic Biology Research Centre for Fine and Speciality Chemicals (SYNBIOCHEM), Manchester Institute of Biotechnology, School of Chemistry, Faculty of Science and Engineering, University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
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Larit F, Nael MA, Benyahia S, Radwan MM, León F, Jasicka-Misiak I, Poliwoda A, Wieczorek D, Benayache F, Benayache S, Wieczorek PP, Cutler SJ. Secondary metabolites from the aerial parts of Cytisus villosus Pourr. Phytochem Lett 2018; 24:1-5. [PMID: 30374367 PMCID: PMC6203340 DOI: 10.1016/j.phytol.2017.12.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Phytochemical investigation of the aerial parts of Cytisus villosus Pourr. resulted in the isolation and characterization of a new isoflavan, (3S, 4S)-2',4'-dihydroxy-3'-methoxy-6,7-methylenedioxyisoflavan- 4-ol (1), and a new monoterpene, (4R,6S)-4-hydroxy-2,2,6-trimethyl-9-oxabicyclo [4.2.1] non-1(8)-en-7-one (2), together with four known flavonoids: geinstein (3), chrysin (4), chrysin -7-O-β-D-glucopyranoside (5) and 2″-O-α-L-rhamnosylorientin (6). The structures of the new compounds were elucidated on the basis of extensive spectroscopic analysis, including 1D, 2D NMR (1H, 13C, COSY, TOCSY, HMBC and HSQC) and HRESIMS. The absolute configurations of 1 and 2 were established by the comparison of experimental and calculated electronic circular dichroism (ECD) spectra.
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Affiliation(s)
- Farida Larit
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677-1848, USA
- Département de Chimie, Faculté des Sciences Exactes, Université des Frères Mentouri, Constantine, Route d’Aine El Bey 25000, Constantine, Algeria
- Corresponding Author: Tel./Fax: (+213)031.81.11.76/77. (Farida Larit)
| | - Manal A. Nael
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tanta University, Tanta 31527, Egypt
| | - Samira Benyahia
- Laboratoire de Synthèse Organique, Modélisation et Optimisation des Procèdes (LOMOP), Université Badji Mokhtar, Faculté des Sciences, Département de Chimie, 23000 Annaba, Algeria
| | - Mohamed M. Radwan
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi University, MS 38677, USA
| | - Francisco León
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677-1848, USA
| | | | - Anna Poliwoda
- Faculty of Chemistry, University of Opole, Pl. Kopernika 11, 45-040 Opole, Poland
| | - Dorota Wieczorek
- Faculty of Chemistry, University of Opole, Pl. Kopernika 11, 45-040 Opole, Poland
| | - Fadila Benayache
- Unité de Recherche Valorisation des Ressources Naturelles, Molécules Bioactives et Analyse Physico-Chimique et Biologique (VARENBIOMOL), Université des Frères Mentouri, Constantine, Route d’Aine El Bey 25000, Constantine, Algeria
| | - Samir Benayache
- Unité de Recherche Valorisation des Ressources Naturelles, Molécules Bioactives et Analyse Physico-Chimique et Biologique (VARENBIOMOL), Université des Frères Mentouri, Constantine, Route d’Aine El Bey 25000, Constantine, Algeria
| | - Piotr P Wieczorek
- Faculty of Chemistry, University of Opole, Pl. Kopernika 11, 45-040 Opole, Poland
| | - Stephen J. Cutler
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677-1848, USA
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Pérez-Recalde M, Ruiz Arias IE, Hermida ÉB. Could essential oils enhance biopolymers performance for wound healing? A systematic review. Phytomedicine 2018; 38:57-65. [PMID: 29425655 DOI: 10.1016/j.phymed.2017.09.024] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 08/07/2017] [Accepted: 09/24/2017] [Indexed: 05/20/2023]
Abstract
BACKGROUND Millions of people in the world suffer from chronic wounds of different etiologies such as diabetic foot and leg ulcers, without solutions nowadays. Molecules obtained from plants offer an alternative to aid wound healing. Strong evidence about essential oils (EO) anti-inflammatory and antimicrobial properties is thoroughly described in literature and their chemical compositions are well characterized. More recently, EO effects in experimental wounds have begun to be analyzed. AIM We aim to summarize the evidence of EO in experimental wounds, and the possibility of combining them with biopolymers commonly used in skin regeneration. METHODS Electronic databases such as ScienceDirect, PubMed and Scopus were used to search scientific contributions until March 2017, using relevant keywords. In a first step, literature focusing on EO and/or mono- or sesqui-terpenoids effects in rodent wounds was identified and summarized. In all cases, chemical structures and EO composition were detailed, as well as references to in vitro activities previously determined, e.g. antibacterial, antioxidant or anti-inflammatory. In a second step, scientific literature devoted to combine EO and biopolymers with the focus set on wound healing innovations, was collected and analyzed. RESULTS Treatments with EO from species of genders Lavandula, Croton, Blumea, Eucalyptus, Pinus, Cymbopogon, Eucalyptus, Cedrus, Abies, Rosmarinus, Origanum, Salvia and Plectranthus, have shown positive results in rodent wounds. All of these EO were mainly composed by monoterpenoids-thymol, 1,8-cineole, linalool-or monoterpenes, as limonene or pinenes. Experimental wounds in rodents have shown faster closure rate, better collagen deposition and/or enhanced fibroblasts proliferation. In blends with biopolymers, several EO combined with chitosan, alginate, gelatin or collagen, were processed to give active films or nanofibers, with antioxidant, anti-inflammatory or antimicrobial activities. Curiously, all of these works were carried out since 2010. CONCLUSIONS There is significant evidence about the effectivity of EO as wound healers. The incorporation of EO into a polymer matrix that contributes to wound healing is still incipient. However, scientific based evidence of the EO incorporation in resorbable polymeric scaffolds was found and analyzed herein. In summary, EO-biopolymer dressings or scaffolds have become promising artifacts regarding wound treatments, especially in chronic wounds, where treating infection and inflammation are still important issues.
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Affiliation(s)
- Mercedes Pérez-Recalde
- Lab3Bio (Laboratorio de Biomateriales, Biomecánica y Bioinstrumentación), Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, 25 de Mayo 1143, B1650HMK General San Martín, Provincia de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB CABA, Argentina.
| | - Ignacio E Ruiz Arias
- Lab3Bio (Laboratorio de Biomateriales, Biomecánica y Bioinstrumentación), Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, 25 de Mayo 1143, B1650HMK General San Martín, Provincia de Buenos Aires, Argentina
| | - Élida B Hermida
- Lab3Bio (Laboratorio de Biomateriales, Biomecánica y Bioinstrumentación), Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, 25 de Mayo 1143, B1650HMK General San Martín, Provincia de Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB CABA, Argentina
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Granica S, Fusani P, Stanisławska I, Piwowarski JP, Melck D, Motta A, Zidorn C. Monoterpenoids from the traditional North Italian vegetable Aruncus dioicus (Walter) Fernald var. vulgaris (Maxim.) H.Hara (Rosaceae). Food Chem 2017; 221:1851-1859. [PMID: 27979172 DOI: 10.1016/j.foodchem.2016.10.090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 10/20/2016] [Accepted: 10/20/2016] [Indexed: 10/20/2022]
Abstract
Investigations of young shoots of Aruncus dioicus (Walter) Fernald var. vulgaris (Maxim.) H.Hara (Rosaceae), collected from the wild and used as vegetables in alpine provinces of Italy, yielded eight monoterpenoids. Besides known compounds, aruncin A, aruncide A, and cimicifugolide, five previously undescribed substances, aruncins C, D, and E, and aruncides D and E, were identified. Based on results from the full synthesis of aruncin B, structures of aruncin A and aruncide A were revised. Structures were established by HR mass spectrometry and extensive 1D and 2D NMR spectroscopy and based on data from synthetic aruncin B. An HPLC-DAD-ESI-MS method was developed to investigate the distribution of the monoterpenoids in different organs of Aruncus dioicus var. vulgaris and in aerial parts of A. dioicus var. aethusifolius (H.Lév.) H.Hara [Syn.: Aruncus aethusifolius (H.Lév.) Nakai]. Preliminary bioactivity studies moreover indicated weak cytotoxicity for some of the compounds against human prostrate adenocarcinoma cells.
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Affiliation(s)
- Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Pietro Fusani
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria, Unità di Ricerca per il Monitoraggio e la Pianificazione Forestale (CREA-MPF), Piazza Nicolini 6 loc. Villazzano, 38123 Trento, Italy
| | - Iwona Stanisławska
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Jakub P Piwowarski
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Dominique Melck
- Istituto di Chimica Biomolecolare - Consiglio Nazionale delle Ricerche, Via Campi Flegrei, 34, 80078 Pozzuoli (NA), Italy
| | - Andrea Motta
- Istituto di Chimica Biomolecolare - Consiglio Nazionale delle Ricerche, Via Campi Flegrei, 34, 80078 Pozzuoli (NA), Italy
| | - Christian Zidorn
- Istituto di Chimica Biomolecolare - Consiglio Nazionale delle Ricerche, Via Campi Flegrei, 34, 80078 Pozzuoli (NA), Italy; Pharmazeutisches Institut, Abteilung Pharmazeutische Biologie, Christian-Albrechts-Universität zu Kiel, Gutenbergstraße 76, 24118 Kiel, Germany.
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Alayrangues J, Hotier L, Massou I, Bertrand Y, Armengaud C. Prolonged effects of in-hive monoterpenoids on the honey bee Apis mellifera. Ecotoxicology 2016; 25:856-862. [PMID: 26965704 DOI: 10.1007/s10646-016-1642-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/01/2016] [Indexed: 06/05/2023]
Abstract
Honey bees are exposed in their environment to contaminants but also to biological stressors such as Varroa destructor that can weaken the colony. Preparations containing monoterpenoids that are essential oil components, can be introduced into hives to control Varroa. The long-term sublethal effects of monoterpenoids used as miticides have been poorly investigated. Analysis of behavior of free-moving bees in the laboratory is useful to evaluate the impact of chemical stressors on their cognitive functions such as vision function. Here, the walking behavior was quantified under a 200-lux light intensity. Weeks and months after introduction of the miticide (74 % thymol) into the hives, decreases of phototaxis was observed with both summer and winter bees. Curiously, in spring, bees collected in treated hives were less attracted by light in the morning than control bees. The survival of bees collected in spring was increased by treatment. After a 1-year period of observation, the colony losses were identical in treated and non-treated groups. Colony loss started earlier in the non-treated group. In public opinion, natural substances as essential oils are safer and more environmentally friendly. We demonstrated that a monoterpenoid-based treatment affects bee responses to light. The latter results have notable implications regarding the evaluation of miticides in beekeeping.
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Affiliation(s)
- Julie Alayrangues
- Centre Universitaire Jean-François Champollion, 81012, Albi Cedex 09, France
- Institut de Neurosciences (INT), Aix-Marseille Université -Faculté de Médecine, 13385, Marseille Cedex 05, France
| | - Lucie Hotier
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse Cedex 09, France
| | - Isabelle Massou
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse Cedex 09, France
| | - Yolaine Bertrand
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse Cedex 09, France
| | - Catherine Armengaud
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative (CBI), Université de Toulouse, CNRS, UPS, Toulouse Cedex 09, France.
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Maia-Joca RPM, Joca HC, Ribeiro FJP, do Nascimento RV, Silva-Alves KS, Cruz JS, Coelho-de-Souza AN, Leal-Cardoso JH. Investigation of terpinen-4-ol effects on vascular smooth muscle relaxation. Life Sci 2014; 115:52-8. [PMID: 25219882 DOI: 10.1016/j.lfs.2014.08.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 08/13/2014] [Accepted: 08/21/2014] [Indexed: 10/24/2022]
Abstract
AIMS This study investigated the mechanisms underlying the vascular effects of terpinen-4-ol in isolated rat aortic ring preparations. MAIN METHODS The thoracic aortae of healthy rats were submitted to isometric tension recording. Membrane resting potential and input membrane resistance were measured by conventional microelectrode technique. KEY FINDINGS Terpinen-4-ol reversibly relaxed endothelium-containing preparations pre-contracted with high K(+) and phenylephrine with IC50 values of 421.43 μM and 802.50 μM, respectively. These effects were significantly reduced by vascular endothelium removal. In Ca(2+)-free and high K(+) (80 mM) medium, the contractions produced by Ba(2+) were reduced by terpinen-4-ol (100-1000 μM) in a concentration-dependent manner. In aortic rings maintained under Ca(2+)-free conditions, terpinen-4-ol significantly reduced the contractions induced by either phenylephrine (1 μM) or phorbol 12,13-dibutyrate (1 μM). Terpinen-4-ol (10-1000 μM) also relaxed the contractions evoked by BAYK-8644 (3 μM) with an IC50 of 454.23 μM. Neither membrane resting potential nor input resistance of smooth muscle cells was altered by terpinen-4-ol exposure. SIGNIFICANCE The present results suggest that terpinen-4-ol induced vascular smooth muscle relaxation that was preferentially due to the inhibition of electromechanical pathways related to calcium influx through voltage-operated calcium channels.
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Affiliation(s)
| | - Humberto Cavalcante Joca
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | | | | | | | - Jader S Cruz
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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