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Dong L, Liu JY, Wang GQ, Luo P, Huang JH, Lv JM, Chen GD, Cheng WB, Tian JZ, Lin FL, Hu D, Gao H. Identification of three novel P450 enzymes involved in the oxidative modification of a newly discovered fusicoccane diterpene. Bioorg Chem 2024; 152:107726. [PMID: 39182256 DOI: 10.1016/j.bioorg.2024.107726] [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: 07/20/2024] [Revised: 08/07/2024] [Accepted: 08/14/2024] [Indexed: 08/27/2024]
Abstract
Fusicoccane (FC)-type diterpenoids are a class of diterpenoids characterized by a unique 5-8-5 ring system and exhibit diverse biological activities. Recently, we identified a novel FC-type diterpene synthase MgMS, which produces a myrothec-15(17)-en-7-ol (1) hydrocarbon skeleton, however, its tailoring congeners have not been elucidated. Here, we discovered two additional gene clusters Bn and Np, each encoding a highly homologous terpene synthase to MgMS but distinct tailoring enzymes. Heterologous expression of the terpene synthases BnMS and NpMS yielded the same product as MgMS. Subsequent introduction of three P450 enzymes MgP450, BnP450 and NpP450 from individual gene clusters resulted in four new FC-type diterpenoids 2-5. Notably, MgP450 serves as the first enzyme responsible for hydroxylation of the C19 methyl group, whereas NpP450 functions as a multifunctional P450 enzyme involved in the oxidations at C5, C6, and C19 positions of the 5-8-5 tricyclic skeleton. C5 oxidation of the hydrocarbon skeleton 1 led to broadening of the NMR signals and incomplete spectra, which was resolved by high-temperature NMR spectral analysis.
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Affiliation(s)
- Lu Dong
- Guangdong Second Provincial General Hospital, Integrated Chinese and Western Medicine Postdoctoral Research Station, School of Medicine, Jinan University, Guangzhou 510317, China; Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China; Institute for Healthcare Artificial Intelligence Application, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Jing-Yuan Liu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Gao-Qian Wang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Pan Luo
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Jia-Hua Huang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Jian-Ming Lv
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Guo-Dong Chen
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China; School of Pharmacy and Food Engineering, Wuyi University, Jiangmen 529020, China
| | - Wei-Bin Cheng
- Institute for Healthcare Artificial Intelligence Application, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Jun-Zhang Tian
- Institute for Healthcare Artificial Intelligence Application, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
| | - Fu-Long Lin
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
| | - Dan Hu
- Guangdong Second Provincial General Hospital, Integrated Chinese and Western Medicine Postdoctoral Research Station, School of Medicine, Jinan University, Guangzhou 510317, China; Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
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2
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Lin FL, Taizoumbe KA, Wang YX, Huang JH, Wang GQ, Chen GD, Lv JM, Hu D, Gao H, Dickschat JS. Mechanistic characterisation of a fungal fusicoccane-type diterpene synthase involved in the biosynthesis of talaro-7,13-diene. Org Biomol Chem 2024; 22:7971-7975. [PMID: 39269007 DOI: 10.1039/d4ob01348d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2024]
Abstract
The cyclisation mechanism of the fungal fusicoccane (FC)-type diterpene synthase (DTS) TadA was investigated by extensive isotopic labelling experiments, and the pH-dependency of the product selectivity of this enzyme was explored. These studies provide new insights into the cyclisation mechanisms of FC-type DTSs.
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Affiliation(s)
- Fu-Long Lin
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
| | - Kizerbo A Taizoumbe
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany.
| | - Yi-Xuan Wang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
| | - Jia-Hua Huang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
| | - Gao-Qian Wang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
| | - Guo-Dong Chen
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
| | - Jian-Ming Lv
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
| | - Dan Hu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China.
| | - Jeroen S Dickschat
- Kekulé-Institute for Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Straße 1, 53121 Bonn, Germany.
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Jiang Y, Renata H. Modular chemoenzymatic synthesis of ten fusicoccane diterpenoids. Nat Chem 2024; 16:1531-1538. [PMID: 38710830 DOI: 10.1038/s41557-024-01533-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 04/09/2024] [Indexed: 05/08/2024]
Abstract
Fusicoccane diterpenoids display intriguing biological activities, including the ability to act as modulators of 14-3-3 protein-protein interactions. However, their innate structural complexity and diverse oxygenation patterns present enormous synthetic challenges. Here we develop a modular chemoenzymatic approach that combines de novo skeletal construction and late-stage hybrid C-H oxidations to achieve the synthesis of ten complex fusicoccanes in 8-13 steps each. A convergent fragment coupling strategy allowed rapid access to a key tricyclic intermediate, which was subjected to chemical and enzymatic C-H oxidations to modularly prepare five oxidized family members. We also conceived a complementary biomimetic skeletal remodelling strategy to synthetically access five rearranged fusicoccanes with unusual bridgehead double bonds. This work may facilitate future investigation into the biological activities of the fusicoccanes and also inspire the implementation of similar hybrid strategies to provide family-level synthetic solutions to other natural product scaffolds.
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Affiliation(s)
- Yanlong Jiang
- Department of Chemistry, BioScience Research Collaborative, Rice University, Houston, TX, USA
| | - Hans Renata
- Department of Chemistry, BioScience Research Collaborative, Rice University, Houston, TX, USA.
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Luo P, Huang JH, Lv JM, Wang GQ, Hu D, Gao H. Biosynthesis of fungal terpenoids. Nat Prod Rep 2024; 41:748-783. [PMID: 38265076 DOI: 10.1039/d3np00052d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Covering: up to August 2023Terpenoids, which are widely distributed in animals, plants, and microorganisms, are a large group of natural products with diverse structures and various biological activities. They have made great contributions to human health as therapeutic agents, such as the anti-cancer drug paclitaxel and anti-malarial agent artemisinin. Accordingly, the biosynthesis of this important class of natural products has been extensively studied, which generally involves two major steps: hydrocarbon skeleton construction by terpenoid cyclases and skeleton modification by tailoring enzymes. Additionally, fungi (Ascomycota and Basidiomycota) serve as an important source for the discovery of terpenoids. With the rapid development of sequencing technology and bioinformatics approaches, genome mining has emerged as one of the most effective strategies to discover novel terpenoids from fungi. To date, numerous terpenoid cyclases, including typical class I and class II terpenoid cyclases as well as emerging UbiA-type terpenoid cyclases, have been identified, together with a variety of tailoring enzymes, including cytochrome P450 enzymes, flavin-dependent monooxygenases, and acyltransferases. In this review, our aim is to comprehensively present all fungal terpenoid cyclases identified up to August 2023, with a focus on newly discovered terpenoid cyclases, especially the emerging UbiA-type terpenoid cyclases, and their related tailoring enzymes from 2015 to August 2023.
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Affiliation(s)
- Pan Luo
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education of China, Jinan University, Guangzhou 510632, China.
| | - Jia-Hua Huang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education of China, Jinan University, Guangzhou 510632, China.
| | - Jian-Ming Lv
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education of China, Jinan University, Guangzhou 510632, China.
| | - Gao-Qian Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education of China, Jinan University, Guangzhou 510632, China.
| | - Dan Hu
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education of China, Jinan University, Guangzhou 510632, China.
| | - Hao Gao
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education of China, Jinan University, Guangzhou 510632, China.
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5
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Hayes W, Keenan C, Wilson J, Onarinde BA. Early detection of dry bubble disease in Agaricus bisporus using volatile compounds. Food Chem 2024; 435:137518. [PMID: 37788541 DOI: 10.1016/j.foodchem.2023.137518] [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: 06/02/2023] [Revised: 08/25/2023] [Accepted: 09/15/2023] [Indexed: 10/05/2023]
Abstract
Lecanicillium fungicola is a pathogen of the commercial white button mushroom (Agaricus bisporus) and is the causal agent of dry bubble disease, which can cause severe economic losses to mushroom growers. Volatile compounds were measured by GC/MS techniques over pure cultures of mycelia on agars, over microcosms of growing mushrooms, and over harvested mushrooms to identify compounds that might give an early warning of the disease. The mushroom strain tested was Agaricus bisporus, strain Sylvan A15; either deliberately infected with L. fungicola or water as a control. Over microcosms, the appearance of β-copaene, β-cubebene, and α-cedrene coincided with, but did not precede, the earliest visual signs of the disease. Mushrooms with dry bubble symptoms also had high levels of β-barbatene and an unknown diterpene (UK 1821). Over some harvested mushroom sets, high levels of cis-α-bisabolene developed as a defence reaction to infection.
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Affiliation(s)
- William Hayes
- National Centre for Food Manufacturing, University of Lincoln, 2 Peppermint Way, Holbeach, Lincs, PE12 7FJ, United Kingdom.
| | - Cathy Keenan
- BiOrbic, Bioeconomy SFI Research Centre, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Jude Wilson
- MBio, Monaghan Mushrooms Group, Tyholland, Co. Monaghan, Ireland.
| | - Bukola Adenike Onarinde
- National Centre for Food Manufacturing, University of Lincoln, 2 Peppermint Way, Holbeach, Lincs, PE12 7FJ, United Kingdom.
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6
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Chen B, Yang Y, Zhang X, Xu D, Sun Y, Chen Y, Wang L. Total Syntheses of Brassicicenes A, R, and T. Org Lett 2023. [PMID: 37994662 DOI: 10.1021/acs.orglett.3c03355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Here, we report concise and divergent total syntheses of fusicoccane members brassicicenes A, R, and T. The key feature of the synthesis is the rapid construction of the 5/8/5 tricyclic core via four steps: aldol reaction, Stork-Danheiser transposition, and ring-closing metathesis from known compounds followed by concise oxidation state adjustment.
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Affiliation(s)
- Bolin Chen
- State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, China
| | - Yufen Yang
- College of Pharmacy, Nankai University, Tianjin 300350, China
| | - Xijing Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, China
| | - Dongdong Xu
- College of Pharmacy, Nankai University, Tianjin 300350, China
| | - Yuanjun Sun
- Academy of Pharmacy, Xi'an Jiaotong-Liverpool University, Suzhou, Jiangsu 215123, China
| | - Yue Chen
- State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, China
| | - Liang Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, China
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7
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Ting SI, Snelson DW, Huffman TR, Kuroo A, Sato R, Shenvi RA. Synthesis of (-)-Cotylenol, a 14-3-3 Molecular Glue Component. J Am Chem Soc 2023; 145:20634-20645. [PMID: 37683289 PMCID: PMC11022164 DOI: 10.1021/jacs.3c07849] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Abstract
Small molecules that modulate the 14-3-3 protein-protein interaction (PPI) network represent valuable therapeutics and tool compounds. However, access has been lost to 14-3-3 PPI molecular glues of the cotylenin class, leading to investigations into the practical chemical syntheses of congeners and analogues. Here we report a concise synthesis of (-)-cotylenol via a 10-step asymmetric entry into a diversifiable 5-8-5 core. This route features a mild Liebeskind-Srogl fragment coupling that tolerates unprecedented steric hindrance to produce a highly congested ketone, and a tandem Claisen-ene cascade that establishes the 8-membered ring. Late-stage control of stereochemistry and functionality leads to (-)-cotylenol and sets the stage for focused library synthesis.
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Affiliation(s)
- Stephen I. Ting
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Dylan W. Snelson
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
- Skaggs Graduate School of Chemical and Biological Sciences, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Tucker R. Huffman
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
- Skaggs Graduate School of Chemical and Biological Sciences, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Akihiro Kuroo
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Ryota Sato
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Ryan A. Shenvi
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
- Skaggs Graduate School of Chemical and Biological Sciences, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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8
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Vinueza-Gavilanes R, Bravo-González JJ, Basurco L, Boncristiani C, Fernández-Irigoyen J, Santamaría E, Marcilla I, Pérez-Mediavilla A, Luquin MR, Vales A, González-Aseguinolaza G, Aymerich MS, Aragón T, Arrasate M. Stabilization of 14-3-3 protein-protein interactions with Fusicoccin-A decreases alpha-synuclein dependent cell-autonomous death in neuronal and mouse models. Neurobiol Dis 2023:106166. [PMID: 37245833 DOI: 10.1016/j.nbd.2023.106166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/19/2023] [Accepted: 05/21/2023] [Indexed: 05/30/2023] Open
Abstract
Synucleinopathies are a group of neurodegenerative diseases without effective treatment characterized by the abnormal aggregation of alpha-synuclein (aSyn) protein. Changes in levels or in the amino acid sequence of aSyn (by duplication/triplication of the aSyn gene or point mutations in the encoding region) cause familial cases of synucleinopathies. However, the specific molecular mechanisms of aSyn-dependent toxicity remain unclear. Increased aSyn protein levels or pathological mutations may favor abnormal protein-protein interactions (PPIs) that could either promote neuronal death or belong to a coping response program against neurotoxicity. Therefore, the identification and modulation of aSyn-dependent PPIs can provide new therapeutic targets for these diseases. To identify aSyn-dependent PPIs we performed a proximity biotinylation assay based on the promiscuous biotinylase BioID2. When expressed as a fusion protein, BioID2 biotinylates by proximity stable and transient interacting partners, allowing their identification by streptavidin affinity purification and mass spectrometry. The aSyn interactome was analyzed using BioID2-tagged wild-type (WT) and pathological mutant E46K aSyn versions in HEK293 cells. We found the 14-3-3 epsilon isoform as a common protein interactor for WT and E46K aSyn. 14-3-3 epsilon correlates with aSyn protein levels in brain regions of a transgenic mouse model overexpressing WT human aSyn. Using a neuronal model in which aSyn cell-autonomous toxicity is quantitatively scored by longitudinal survival analysis, we found that stabilization of 14-3-3 protein-proteins interactions with Fusicoccin-A (FC-A) decreases aSyn-dependent toxicity. Furthermore, FC-A treatment protects dopaminergic neuronal somas in the substantia nigra of a Parkinson's disease mouse model. Based on these results, we propose that the stabilization of 14-3-3 epsilon interaction with aSyn might reduce aSyn toxicity, and highlight FC-A as a potential therapeutic compound for synucleinopathies.
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Affiliation(s)
- Rodrigo Vinueza-Gavilanes
- Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain.
| | - Jorge Juan Bravo-González
- Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain.
| | - Leyre Basurco
- Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; Biochemistry and Genetics Department, School of Sciences, University of Navarra, Pamplona, Spain.
| | | | - Joaquín Fernández-Irigoyen
- Proteored-Institute of Health Carlos III (ISCIII), Clinical Neuroproteomics Unit, Navarrabiomed, Navarra Health Department, Public University of Navarra, Pamplona, Spain; IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.
| | - Enrique Santamaría
- Proteored-Institute of Health Carlos III (ISCIII), Clinical Neuroproteomics Unit, Navarrabiomed, Navarra Health Department, Public University of Navarra, Pamplona, Spain; IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.
| | - Irene Marcilla
- Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.
| | - Alberto Pérez-Mediavilla
- Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; Biochemistry and Genetics Department, School of Sciences, University of Navarra, Pamplona, Spain; IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.
| | - María Rosario Luquin
- Department of Neurology, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain; IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.
| | - Africa Vales
- Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.
| | - Gloria González-Aseguinolaza
- Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.
| | - María Soledad Aymerich
- Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; Biochemistry and Genetics Department, School of Sciences, University of Navarra, Pamplona, Spain; IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.
| | - Tomás Aragón
- Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.
| | - Montserrat Arrasate
- Gene Therapy and Regulation of Gene Expression Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; Department of Pathology, Anatomy and Physiology, School of Medicine, University of Navarra, Pamplona, Spain; IdiSNA (Navarra Institute for Health Research), Pamplona, Spain.
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Transcriptome Analysis of the Necrotrophic Pathogen Alternaria brassicae Reveals Insights into Its Pathogenesis in Brassica juncea. Microbiol Spectr 2023:e0293922. [PMID: 36912684 PMCID: PMC10100672 DOI: 10.1128/spectrum.02939-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023] Open
Abstract
Alternaria blight or leaf spot caused by Alternaria brassicae has an enormous economic impact on the Brassica crops grown worldwide. Although the genome of A. brassicae has been sequenced, little is known about the genes that play a role during the infection of the host species. In this study, the transcriptome expression profile of A. brassicae during growth and infection was determined. Differential expression analysis revealed that 4,430 genes were differentially expressed during infection. Weighted gene coexpression network analysis helped identify 10 modules, which were highly correlated with growth and infection. Subsequent gene ontology (GO) enrichment analysis of the modules highlighted the involvement of biological processes such as toxin metabolism, ribosome biogenesis, polysaccharide catabolism, copper ion transport, and vesicular trafficking during infection. Additionally, 200 carbohydrate-active enzymes (CAZymes) and 80 potential effectors were significantly upregulated during infection. Furthermore, 18 secondary metabolite gene clusters were also differentially expressed during infection. The clusters responsible for the production of destruxin B, brassicicene C, and HC-toxin were significantly upregulated during infection. Collectively, these results provide an overview of the critical pathways underlying the pathogenesis of A. brassicae and highlight the distinct gene networks that are temporally regulated. The study thus provides novel insights into the transcriptional plasticity of a necrotrophic pathogen during infection of its host. Additionally, the in planta expression evidence for many potential effectors provides a theoretical basis for further investigations into the effector biology of necrotrophic pathogens such as A. brassicae. IMPORTANCE Alternaria brassicae is a necrotrophic pathogen that can infect almost all members of the Brassicaceae family. A. brassicae causes extensive yield losses in oilseed mustard and has practically restricted the cultivation of oilseed brassicas in regions with cool and foggy climatic conditions (foothills and mountainous terrains) where the severity of the pathogen is the highest. In this study, I identified the differentially expressed genes associated with the pathogenicity of A. brassicae through transcriptome sequencing. Also, I have been able to delineate pathways that are active during the early and late stages of infection. Consequently, this study has provided crucial insights into the molecular mechanisms underlying the pathogenesis of A. brassicae, an important necrotrophic pathogen.
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10
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Barrett RRG, Campbell DA, Gleason JL. An Organocatalytic Oxy-Cope/Michael Cascade Reaction. Org Lett 2023; 25:777-781. [PMID: 36701675 DOI: 10.1021/acs.orglett.2c04269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Ethyl diazepane carboxylate catalyzes the oxy-Cope rearrangement of 4-hydroxy- and 4-alkoxy-1,5-hexadiene-2-carboxaldehydes via iminium ion activation. The resulting intermediate undergoes an intramolecular Michael reaction to furnish cyclopentane-containing products. The reaction proceeds with a range of substrates, including both cyclic and acyclic substrates, and tolerates substitution on the vinyl substituent. Substrates fused on a cycloalkane framework undergo net ring expansion/cyclopentannulation with a high degree of stereocontrol via chairlike transition states. The reaction extends iminium organocatalysis to the oxy-Cope rearrangement, embedded within a complexity-generating cascade transformation.
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Affiliation(s)
- Ryan R G Barrett
- Department of Chemistry, McGill University, 801 Sherbrooke West, Montreal, QC H3A 0B8, Canada
| | - Donald A Campbell
- Department of Chemistry, McGill University, 801 Sherbrooke West, Montreal, QC H3A 0B8, Canada
| | - James L Gleason
- Department of Chemistry, McGill University, 801 Sherbrooke West, Montreal, QC H3A 0B8, Canada
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11
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Bastos RC, Vasconcelos CFM, Paiva MB, Reis TDDSD, Souza RB, Dos Santos HS, Bandeira PN, Aguiar LMV, Cunha RMSD. Assessment of antioxidant and antiparkinsonian potential of a new diterpene isolated from Croton argyrophylloides. Free Radic Res 2022; 56:760-770. [PMID: 36814389 DOI: 10.1080/10715762.2023.2176763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Oxidative stress is related to health problems including neurological and neurodegenerativedisturbs, such as Parkinson's disease. Natural compounds are reported as source of antioxidant molecules. Therefore, this study aimed to analyze the antioxidant and neuroprotective potential of a new diterpene isolated from C. argyrophylloides (MP-1). Male Wistar rats (250-300 g) were used to evaluate MP-1 antiparkinsonian potential through neurodegenerative model induced by the neurotoxin 6-hydroxydopamine (21 μg). On the 14th day, animals were submitted to behavioral tests and on the 15th day, brain areas were dissected to neurochemical analyzes. MP-1 demonstrated a high antioxidant capacity in vitro and decreased the parkinsonian effects, such as behavioral changes, motor alterations, and body weight loss. MP-1 was also able to control the upregulated levels of nitrosative stress and lipid peroxidation. These findings suggest MP-1 as a diterpene with high antioxidant capacity which might be used to development of new approach against Parkinson's disease.
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Affiliation(s)
| | | | - Marcela Bezerra Paiva
- Biotechnology Core of Sobral, State University of Acaraú Valley, Sobral, Ceará, Brazil
| | | | - Ricardo Basto Souza
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Hélcio Silva Dos Santos
- Exact Sciences and Technology Center, Natural Products Chemistry and Organic Synthesis Laboratory, State University of Vale do Acaraú, Sobral, Ceará, Brazil
| | - Paulo Nogueira Bandeira
- Exact Sciences and Technology Center, Natural Products Chemistry and Organic Synthesis Laboratory, State University of Vale do Acaraú, Sobral, Ceará, Brazil
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12
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Huang JH, Lv JM, Xiao LY, Xu Q, Lin FL, Wang GQ, Chen GD, Qin SY, Hu D, Gao H. Characterization of a new fusicoccane-type diterpene synthase and an associated P450 enzyme. Beilstein J Org Chem 2022; 18:1396-1402. [PMID: 36262672 PMCID: PMC9551204 DOI: 10.3762/bjoc.18.144] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 09/19/2022] [Indexed: 01/05/2023] Open
Abstract
Fusicoccane-type terpenoids are a subgroup of diterpenoids featured with a unique 5-8-5 ring system. They are widely distributed in nature and possess a variety of biological activities. Up to date, only five fusicoccane-type diterpene synthases have been identified. Here, we identify a two-gene biosynthetic gene cluster containing a new fusicoccane-type diterpene synthase gene tadA and an associated cytochrome P450 gene tadB from Talaromyces wortmannii ATCC 26942. Heterologous expression reveals that TadA catalyzes the formation of a new fusicoccane-type diterpene talaro-7,13-diene. D2O isotope labeling combined with site-directed mutagenesis indicates that TadA might employ a different C2,6 cyclization strategy from the known fusicoccane-type diterpene synthases, in which a neutral intermediate is firstly formed and then protonated by an environmental proton. In addition, we demonstrate that the associated cytochrome P450 enzyme TadB is able to catalyze multiple oxidation of talaro-7,13-diene to yield talaro-6,13-dien-5,8-dione.
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Affiliation(s)
- Jia-Hua Huang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Jian-Ming Lv
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Liang-Yan Xiao
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Qian Xu
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Fu-Long Lin
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Gao-Qian Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Guo-Dong Chen
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Sheng-Ying Qin
- Clinical Experimental Center, First Affiliated Hospital of Jinan University, Guangzhou 510630, China,
| | - Dan Hu
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
- Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Hao Gao
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
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13
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Biosynthesis of fusicoccane-type diterpenoids featuring a 5–8–5 tricyclic carbon skeleton. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Wang YQ, Xu K, Min L, Li CC. Asymmetric Total Syntheses of Hypoestin A, Albolic Acid, and Ceroplastol II. J Am Chem Soc 2022; 144:10162-10167. [PMID: 35657330 DOI: 10.1021/jacs.2c04633] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first asymmetric total synthesis of bioactive diterpenoid hypoestin A with an unprecedented [5-8-5-3] tetracyclic skeleton is accomplished in 15 steps from commercially available (R)-limonene. Furthermore, the second asymmetric total syntheses of sesterterpenoids albolic acid and ceroplastol II in 21 steps are also reported. The synthetically challenging and highly functionalized [X-8-5] (X = 5 or 7) tricarbocyclic ring systems found in hypoestin A, albolic acid, ceroplastol II, and schindilactone A, as well as other natural products, are efficiently and directly constructed via a unique intramolecular Pauson-Khand reaction of an allene-yne. This work represents the first reported use of the Pauson-Khand reaction to access synthetically challenging eight-membered-ring systems in natural product synthesis.
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Affiliation(s)
- Yong-Qiang Wang
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Kunhua Xu
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Long Min
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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15
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Zhou P, Zhang X, Dai C, Yan S, Wei M, Feng W, Li Q, Liu J, Zhu H, Hu Z, Chen C, Zhang Y. Talaromynoids A-E: Five New Fusicoccane Diterpenoids from the Endophytic Fungus Talaromyces sp. DC-26. J Org Chem 2022; 87:7333-7341. [PMID: 35588185 DOI: 10.1021/acs.joc.2c00528] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Talaromynoids A-E (1-5), five new fusicoccane diterpenoids, were obtained from the endophytic fungus Talaromyces sp. DC-26, which was isolated from a wild leech. Talaromynoid A (1) represents the first fusicoccane diterpenoid bearing an unexpected 5-7-5 tricyclic ring system, which is possibly derived from normal 5-8-5 ones by ring contraction. Talaromynoid E (5) is characterized by an unusual oxygen bridge between C-1 and C-8 that establishes the eight-membered ring B to be a 9-oxo-bicyclo[3.3.1]nonane. Structures of 1-5 with absolute configurations were determined by extensive NMR spectral analyses, electronic circular dichroism (ECD) calculations, X-ray diffraction analyses, and acid hydrolysis.
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Affiliation(s)
- Peng Zhou
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China.,Journal Editorial Department, Guangdong Pharmaceutical University, Guangzhou 510006, People's Republic of China
| | - Xiaotian Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Chong Dai
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Shan Yan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Mengsha Wei
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Wenya Feng
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Qin Li
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Junjun Liu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Zhengxi Hu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Chunmei Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, People's Republic of China
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16
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Chen B, Wu Q, Xu D, Zhang X, Ding Y, Bao S, Zhang X, Wang L, Chen Y. A Two-Phase Approach to Fusicoccane Synthesis To Uncover a Compound That Reduces Tumourigenesis in Pancreatic Cancer Cells. Angew Chem Int Ed Engl 2022; 61:e202117476. [PMID: 35166433 DOI: 10.1002/anie.202117476] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Indexed: 12/19/2022]
Abstract
Alterbrassicicene D (1) and 3(11)-epoxyhypoestenone (2) were synthesised via a two-phase approach featuring concise construction of the 5-8-5 tricyclic intermediate and a tandem base-mediated epoxide opening-transannular oxa-Michael addition cascade to forge the complex skeleton of 2. The route is scalable and we generated 15 g of the tricyclic intermediate in 8 steps from (R)-limonene and 720 mg of the penultimate bioactive intermediate in a protecting-group-free manner. Our synthesis enabled the structural determination of 2 and provided materials for preliminary anticancer evaluation. The penultimate intermediate showed therapeutic potential in terms of its ability to dramatically reduce the tumourigenic potential of PANC-1 pancreatic cancer cells according to a limiting dilution tumour-initiating assay. Our synthetic approach will facilitate unified access to naturally occurring fusicoccanes and their derivatives for anticancer evaluation.
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Affiliation(s)
- Bolin Chen
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, 38 Tongyan Road, Tianjin, 300353, P. R. China
| | - Qianwei Wu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, 38 Tongyan Road, Tianjin, 300353, P. R. China
| | - Dongdong Xu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, 38 Tongyan Road, Tianjin, 300353, P. R. China
| | - Xijing Zhang
- College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, P. R. China
| | - Yahui Ding
- College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, P. R. China
| | - Shiqi Bao
- Accendatech Company, Ltd, 7 Fengze Road, Tianjin, 300384, P. R. China
| | - Xuemei Zhang
- Accendatech Company, Ltd, 7 Fengze Road, Tianjin, 300384, P. R. China
| | - Liang Wang
- College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, P. R. China
| | - Yue Chen
- College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, P. R. China
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17
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Noar RD, Thomas E, Daub ME. Genetic Characteristics and Metabolic Interactions between Pseudocercospora fijiensis and Banana: Progress toward Controlling Black Sigatoka. PLANTS (BASEL, SWITZERLAND) 2022; 11:948. [PMID: 35406928 PMCID: PMC9002641 DOI: 10.3390/plants11070948] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/23/2022] [Accepted: 03/25/2022] [Indexed: 05/10/2023]
Abstract
The international importance of banana and severity of black Sigatoka disease have led to extensive investigations into the genetic characteristics and metabolic interactions between the Dothideomycete Pseudocercospora fijiensis and its banana host. P. fijiensis was shown to have a greatly expanded genome compared to other Dothideomycetes, due to the proliferation of retrotransposons. Genome analysis suggests the presence of dispensable chromosomes that may aid in fungal adaptation as well as pathogenicity. Genomic research has led to the characterization of genes and metabolic pathways involved in pathogenicity, including: secondary metabolism genes such as PKS10-2, genes for mitogen-activated protein kinases such as Fus3 and Slt2, and genes for cell wall proteins such as glucosyl phosphatidylinositol (GPI) and glycophospholipid surface (Gas) proteins. Studies conducted on resistance mechanisms in banana have documented the role of jasmonic acid and ethylene pathways. With the development of banana transformation protocols, strategies for engineering resistance include transgenes expressing antimicrobial peptides or hydrolytic enzymes as well as host-induced gene silencing (HIGS) targeting pathogenicity genes. Pseudocercospora fijiensis has been identified as having high evolutionary potential, given its large genome size, ability to reproduce both sexually and asexually, and long-distance spore dispersal. Thus, multiple control measures are needed for the sustainable control of black Sigatoka disease.
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Affiliation(s)
- Roslyn D. Noar
- NSF Center for Integrated Pest Management, North Carolina State University, Raleigh, NC 27606, USA
| | - Elizabeth Thomas
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC 27695, USA; (E.T.); (M.E.D.)
| | - Margaret E. Daub
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC 27695, USA; (E.T.); (M.E.D.)
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18
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Rodrigues O, Shan L. Stomata in a state of emergency: H 2O 2 is the target locked. TRENDS IN PLANT SCIENCE 2022; 27:274-286. [PMID: 34756808 DOI: 10.1016/j.tplants.2021.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 09/22/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
Stomatal movements are essential for plants to regulate photosynthesis rate, water status, and immunity. Upon stress stimulation, the production of hydrogen peroxide (H2O2) in the apoplasts and its accumulation within the guard cells are among key determinatives for stomatal closure. The regulatory mechanisms of H2O2 production and transport under plant-pathogen interaction and drought stress response in stomata are important fields of research. Specifically, the regulation of NADPH oxidases and aquaporins appears to be crucial in H2O2-controlled stomatal closure. In this review, we summarize how the calcium-dependent and calcium-independent mechanisms activate RESPIRATORY BURST OXIDASE HOMOLOG (RBOH)D/F NADPH oxidases and the aquaporin PIP2;1 to induce stomatal closure, and highlight how the H2O2 production is targeted by pathogen toxins and effectors to counteract plant immunity.
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Affiliation(s)
- Olivier Rodrigues
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA; Unité de Recherche Physiologie, Pathologie et Génétique Végétales, Université Fédérale Toulouse Midi-Pyrénées, INP-PURPAN, F-31076 Toulouse, France.
| | - Libo Shan
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA.
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19
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Zhang FL, Feng T. Diterpenes Specially Produced by Fungi: Structures, Biological Activities, and Biosynthesis (2010–2020). J Fungi (Basel) 2022; 8:jof8030244. [PMID: 35330246 PMCID: PMC8951520 DOI: 10.3390/jof8030244] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/25/2022] [Accepted: 02/27/2022] [Indexed: 12/11/2022] Open
Abstract
Fungi have traditionally been a very rewarding source of biologically active natural products, while diterpenoids from fungi, such as the cyathane-type diterpenoids from Cyathus and Hericium sp., the fusicoccane-type diterpenoids from Fusicoccum and Alternaria sp., the guanacastane-type diterpenoids from Coprinus and Cercospora sp., and the harziene-type diterpenoids from Trichoderma sp., often represent unique carbon skeletons as well as diverse biological functions. The abundances of novel skeletons, biological activities, and biosynthetic pathways present new opportunities for drug discovery, genome mining, and enzymology. In addition, diterpenoids peculiar to fungi also reveal the possibility of differing biological evolution, although they have similar biosynthetic pathways. In this review, we provide an overview about the structures, biological activities, evolution, organic synthesis, and biosynthesis of diterpenoids that have been specially produced by fungi from 2010 to 2020. We hope this review provides timely illumination and beneficial guidance for future research works of scholars who are interested in this area.
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20
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Chen B, Wu Q, Xu D, Zhang X, Ding Y, Bao S, Zhang X, Wang L, Chen Y. A Two‐Phase Approach to Fusicoccane Synthesis To Uncover a Compound That Reduces Tumourigenesis in Pancreatic Cancer Cells. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Bolin Chen
- State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University 38 Tongyan Road Tianjin 300353 P. R. China
| | - Qianwei Wu
- State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University 38 Tongyan Road Tianjin 300353 P. R. China
| | - Dongdong Xu
- State Key Laboratory of Medicinal Chemical Biology College of Pharmacy Nankai University 38 Tongyan Road Tianjin 300353 P. R. China
| | - Xijing Zhang
- College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 P. R. China
| | - Yahui Ding
- College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 P. R. China
| | - Shiqi Bao
- Accendatech Company, Ltd 7 Fengze Road Tianjin 300384 P. R. China
| | - Xuemei Zhang
- Accendatech Company, Ltd 7 Fengze Road Tianjin 300384 P. R. China
| | - Liang Wang
- College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 P. R. China
| | - Yue Chen
- College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 P. R. China
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21
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Synthesis of the eight-membered carbocycle of brachialactone by intramolecular Mizoroki-Heck reaction. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2021.153608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Wu XD, Ding LF, Li WY, Cheng B, Lei T, Zhou HF, Zhao QS. Hypoestins A−D: highly modified fusicoccane diterpenoids with promising Cav3.1 calcium channel inhibitory activity from Hypoestes purpurea. Org Chem Front 2022. [DOI: 10.1039/d2qo00265e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hypoestins A–D (1–4), four highly modified fusicoccane diterpenoids with two unreported carbon skeletons, and hypoestins E (5) and F (6), two prviously undescribed fusicoccane diterpenoids, were isolated from aerial parts...
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23
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Horvath M, Petrvalska O, Herman P, Obsilova V, Obsil T. 14-3-3 proteins inactivate DAPK2 by promoting its dimerization and protecting key regulatory phosphosites. Commun Biol 2021; 4:986. [PMID: 34413451 PMCID: PMC8376927 DOI: 10.1038/s42003-021-02518-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/03/2021] [Indexed: 01/05/2023] Open
Abstract
Death-associated protein kinase 2 (DAPK2) is a CaM-regulated Ser/Thr protein kinase, involved in apoptosis, autophagy, granulocyte differentiation and motility regulation, whose activity is controlled by autoinhibition, autophosphorylation, dimerization and interaction with scaffolding proteins 14-3-3. However, the structural basis of 14-3-3-mediated DAPK2 regulation remains unclear. Here, we structurally and biochemically characterize the full-length human DAPK2:14-3-3 complex by combining several biophysical techniques. The results from our X-ray crystallographic analysis revealed that Thr369 phosphorylation at the DAPK2 C terminus creates a high-affinity canonical mode III 14-3-3-binding motif, further enhanced by the diterpene glycoside Fusicoccin A. Moreover, concentration-dependent DAPK2 dimerization is disrupted by Ca2+/CaM binding and stabilized by 14-3-3 binding in solution, thereby protecting the DAPK2 inhibitory autophosphorylation site Ser318 against dephosphorylation and preventing Ca2+/CaM binding. Overall, our findings provide mechanistic insights into 14-3-3-mediated DAPK2 inhibition and highlight the potential of the DAPK2:14-3-3 complex as a target for anti‐inflammatory therapies. Horvath et al. structurally and biochemically characterize the full-length human DAPK2-14-3-3 complex to investigate the effects of binding to DAPK2 on its dimerization, activation by dephosphorylation of Ser318, and Ca2+/calmodulin binding. Their results provide mechanistic insights into 14- 3-3-mediated DAPK2 inhibition and highlight the potential of the DAPK2:14-3-3 complex as a target for anti-inflammatory therapies.
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Affiliation(s)
- Matej Horvath
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic.,Department of Structural Biology of Signaling Proteins, Division BIOCEV, Institute of Physiology of the Czech Academy of Sciences, Vestec, Czech Republic
| | - Olivia Petrvalska
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic.,Department of Structural Biology of Signaling Proteins, Division BIOCEV, Institute of Physiology of the Czech Academy of Sciences, Vestec, Czech Republic
| | - Petr Herman
- Institute of Physics, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | - Veronika Obsilova
- Department of Structural Biology of Signaling Proteins, Division BIOCEV, Institute of Physiology of the Czech Academy of Sciences, Vestec, Czech Republic.
| | - Tomas Obsil
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic. .,Department of Structural Biology of Signaling Proteins, Division BIOCEV, Institute of Physiology of the Czech Academy of Sciences, Vestec, Czech Republic.
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24
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Hayasaka A, Tanaka K, Hashimoto M. Isolation and structural elucidation of novel fusicoccan dehydroxypericonicin A from Roussoella sp. Biosci Biotechnol Biochem 2021; 85:1798-1801. [PMID: 34100861 DOI: 10.1093/bbb/zbab103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/27/2021] [Indexed: 11/14/2022]
Abstract
A potent antifungal fusicoccane dehydroxypericonicin A (1) was isolated from Roussoella sp. along with known allantofuranone (2). The relative structure of 1 was fully elucidated by NMR spectroscopic manner. The suggested relative structure was confirmed by density functional theory (DFT)-based 13C NMR chemical shift calculations. The absolute configuration was investigated by a spectral comparison of the experimental electronic circular dichroism spectrum with that based on the DFT calculations.
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Affiliation(s)
- Ayane Hayasaka
- Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, Japan
| | - Kazuaki Tanaka
- Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, Japan
| | - Masaru Hashimoto
- Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, Japan
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25
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Faylo JL, van Eeuwen T, Kim HJ, Gorbea Colón JJ, Garcia BA, Murakami K, Christianson DW. Structural insight on assembly-line catalysis in terpene biosynthesis. Nat Commun 2021; 12:3487. [PMID: 34108468 PMCID: PMC8190136 DOI: 10.1038/s41467-021-23589-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 05/05/2021] [Indexed: 12/20/2022] Open
Abstract
Fusicoccadiene synthase from Phomopsis amygdali (PaFS) is a unique bifunctional terpenoid synthase that catalyzes the first two steps in the biosynthesis of the diterpene glycoside Fusicoccin A, a mediator of 14-3-3 protein interactions. The prenyltransferase domain of PaFS generates geranylgeranyl diphosphate, which the cyclase domain then utilizes to generate fusicoccadiene, the tricyclic hydrocarbon skeleton of Fusicoccin A. Here, we use cryo-electron microscopy to show that the structure of full-length PaFS consists of a central octameric core of prenyltransferase domains, with the eight cyclase domains radiating outward via flexible linker segments in variable splayed-out positions. Cryo-electron microscopy and chemical crosslinking experiments additionally show that compact conformations can be achieved in which cyclase domains are more closely associated with the prenyltransferase core. This structural analysis provides a framework for understanding substrate channeling, since most of the geranylgeranyl diphosphate generated by the prenyltransferase domains remains on the enzyme for cyclization to form fusicoccadiene.
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Affiliation(s)
- Jacque L Faylo
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA, United States
| | - Trevor van Eeuwen
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Biochemistry and Molecular Biophysics Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Hee Jong Kim
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Biochemistry and Molecular Biophysics Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Jose J Gorbea Colón
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Biochemistry and Molecular Biophysics Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Benjamin A Garcia
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Kenji Murakami
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - David W Christianson
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA, United States.
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26
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Kuusk A, Boyd H, Chen H, Ottmann C. Small-molecule modulation of p53 protein-protein interactions. Biol Chem 2021; 401:921-931. [PMID: 32049643 DOI: 10.1515/hsz-2019-0405] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 02/03/2020] [Indexed: 12/22/2022]
Abstract
Small-molecule modulation of protein-protein interactions (PPIs) is a very promising but also challenging area in drug discovery. The tumor suppressor protein p53 is one of the most frequently altered proteins in human cancers, making it an attractive target in oncology. 14-3-3 proteins have been shown to bind to and positively regulate p53 activity by protecting it from MDM2-dependent degradation or activating its DNA binding affinity. PPIs can be modulated by inhibiting or stabilizing specific interactions by small molecules. Whereas inhibition has been widely explored by the pharmaceutical industry and academia, the opposite strategy of stabilizing PPIs still remains relatively underexploited. This is rather interesting considering the number of natural compounds like rapamycin, forskolin and fusicoccin that exert their activity by stabilizing specific PPIs. In this review, we give an overview of 14-3-3 interactions with p53, explain isoform specific stabilization of the tumor suppressor protein, explore the approach of stabilizing the 14-3-3σ-p53 complex and summarize some promising small molecules inhibiting the p53-MDM2 protein-protein interaction.
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Affiliation(s)
- Ave Kuusk
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, NL-5600MB Eindhoven, The Netherlands
- Discovery Sciences, IMED Biotech Unit, AstraZeneca, S-43183 Mölndal, Sweden
| | - Helen Boyd
- Clinical Pharmacology and Safety Sciences, AstraZeneca, Cambridge, UK
| | - Hongming Chen
- Guangzhou Regenerative Medicine and Health-Guangdong Laboratory, Science Park, Guangzhou 510530, China
| | - Christian Ottmann
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, NL-5600MB Eindhoven, The Netherlands
- Department of Chemistry, University of Duisburg-Essen, D-45141 Essen, Germany
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27
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28
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Harmange Magnani CS, Maimone TJ. Fusicoccin Keeps Getting Stickier: Modulation of an Adaptor Protein Interactome with a Molecular Glue Leads to Neurite Outgrowth. Cell Chem Biol 2021; 27:635-637. [PMID: 32559498 DOI: 10.1016/j.chembiol.2020.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Many traditional drugs inhibit enzyme function; in contrast, some naturally "sticky" small molecules can stabilize protein-protein interactions. In this issue of Cell Chemical Biology, Kaplan et al. (2020) explore regulation of the 14-3-3 interactome by a small-molecule molecular glue leading to neurite outgrowth through a polypharmacological mechanism.
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Affiliation(s)
| | - Thomas J Maimone
- Department of Chemistry, University of California-Berkeley, Berkeley, CA 94720, USA.
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29
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The 14-3-3 Proteins as Important Allosteric Regulators of Protein Kinases. Int J Mol Sci 2020; 21:ijms21228824. [PMID: 33233473 PMCID: PMC7700312 DOI: 10.3390/ijms21228824] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/20/2020] [Accepted: 11/20/2020] [Indexed: 12/14/2022] Open
Abstract
Phosphorylation by kinases governs many key cellular and extracellular processes, such as transcription, cell cycle progression, differentiation, secretion and apoptosis. Unsurprisingly, tight and precise kinase regulation is a prerequisite for normal cell functioning, whereas kinase dysregulation often leads to disease. Moreover, the functions of many kinases are regulated through protein–protein interactions, which in turn are mediated by phosphorylated motifs and often involve associations with the scaffolding and chaperon protein 14-3-3. Therefore, the aim of this review article is to provide an overview of the state of the art on 14-3-3-mediated kinase regulation, focusing on the most recent mechanistic insights into these important protein–protein interactions and discussing in detail both their structural aspects and functional consequences.
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30
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Lentini Santo D, Petrvalska O, Obsilova V, Ottmann C, Obsil T. Stabilization of Protein-Protein Interactions between CaMKK2 and 14-3-3 by Fusicoccins. ACS Chem Biol 2020; 15:3060-3071. [PMID: 33146997 DOI: 10.1021/acschembio.0c00821] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Ca2+/calmodulin-dependent protein kinase kinase 2 (CaMKK2) regulates several key physiological and pathophysiological processes, and its dysregulation has been implicated in obesity, diabetes, and cancer. CaMKK2 is inhibited through phosphorylation in a process involving binding to the scaffolding 14-3-3 protein, which maintains CaMKK2 in the phosphorylation-mediated inhibited state. The previously reported structure of the N-terminal CaMKK2 14-3-3-binding motif bound to 14-3-3 suggested that the interaction between 14-3-3 and CaMKK2 could be stabilized by small-molecule compounds. Thus, we investigated the stabilization of interactions between CaMKK2 and 14-3-3γ by Fusicoccin A and other fusicoccanes-diterpene glycosides that bind at the interface between the 14-3-3 ligand binding groove and the 14-3-3 binding motif of the client protein. Our data reveal that two of five tested fusicoccanes considerably increase the binding of phosphopeptide representing the 14-3-3 binding motif of CaMKK2 to 14-3-3γ. Crystal structures of two ternary complexes suggest that the steric contacts between the C-terminal part of the CaMKK2 14-3-3 binding motif and the adjacent fusicoccane molecule are responsible for differences in stabilization potency between the study compounds. Moreover, our data also show that fusicoccanes enhance the binding affinity of phosphorylated full-length CaMKK2 to 14-3-3γ, which in turn slows down CaMKK2 dephosphorylation, thus keeping this protein in its phosphorylation-mediated inhibited state. Therefore, targeting the fusicoccin binding cavity of 14-3-3 by small-molecule compounds may offer an alternative strategy to suppress CaMKK2 activity by stabilizing its phosphorylation-mediated inhibited state.
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Affiliation(s)
- Domenico Lentini Santo
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Olivia Petrvalska
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
- Department of Structural Biology of Signaling Proteins, Division BIOCEV, Institute of Physiology of the Czech Academy of Sciences, 252 50 Vestec, Czech Republic
| | - Veronika Obsilova
- Department of Structural Biology of Signaling Proteins, Division BIOCEV, Institute of Physiology of the Czech Academy of Sciences, 252 50 Vestec, Czech Republic
| | - Christian Ottmann
- Department of Biomedical Engineering, Laboratory of Chemical Biology and Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Tomas Obsil
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
- Department of Structural Biology of Signaling Proteins, Division BIOCEV, Institute of Physiology of the Czech Academy of Sciences, 252 50 Vestec, Czech Republic
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31
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Tang X, Zhang F, Zeng T, Li W, Yin S, Wu R. Enzymatic Plasticity Inspired by the Diterpene Cyclase CotB2. ACS Chem Biol 2020; 15:2820-2832. [PMID: 32986400 DOI: 10.1021/acschembio.0c00645] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Enzymatic plasticity, as a modern term referring to the functional conversion of an enzyme, is significant for enzymatic activity redesign. The bacterial diterpene cyclase CotB2 is a typical plastic enzyme by which its native form precisely conducts a chemical reaction while its mutants diversify the catalytic functions drastically. Many efforts have been made to disclose the mysteries of CotB2 enzyme catalysis. However, the catalytic details and regulatory mechanism toward the precise chemo- and stereoselectivity are still elusive. In this work, multiscale simulations are employed to illuminate the biocyclization mechanisms of the linear substrate into the final product cyclooctat-9-en-7-ol with a 5-8-5 fused ring scaffold, and the derailment products arising from the premature quenching of reactive carbocation intermediates are also discussed. The two major regulatory factors, local electrostatic stabilization effects from aromatic residues or polar residue in pocket and global features of active site including pocket-contour and pocket-hydrophobicity, are responsible for the enzymatic plasticity of CotB2. Further comparative studies of representative Euphorbiaceae and fungal diterpene cyclase (RcCS and PaFS) show a correlation between pocket plasticity and product diversity, which inspires a tentative enzyme product prediction and the rational diterpene cyclases' reengineering in the future.
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Affiliation(s)
- Xiaowen Tang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China
| | - Fan Zhang
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Tao Zeng
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wei Li
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Sheng Yin
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Ruibo Wu
- Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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32
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Egenolf K, Conrad J, Schöne J, Braunberger C, Beifuß U, Walker F, Nuñez J, Arango J, Karwat H, Cadisch G, Neumann G, Rasche F. Brachialactone isomers and derivatives of Brachiaria humidicola reveal contrasting nitrification inhibiting activity. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 154:491-497. [PMID: 32663650 DOI: 10.1016/j.plaphy.2020.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 05/29/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
Biological Nitrification Inhibition (BNI) of Brachiaria humidicola has been mainly attributed to the root-exuded fusicoccane-type diterpene brachialactone. We hypothesized, however, that according to the high diversity of fusicoccanes described for plants and microorganisms, BNI of B. humidicola is caused by an assemblage of bioactive fusicoccanes. B. humidicola root exudates were collected hydroponically and compounds isolated by semi-preparative HPLC. Chemical structures were revealed by spectroscopic techniques, including HRMS as well as 1D and 2D NMR. Nitrification inhibiting (NI) potential of isolated compounds was evaluated by a Nitrosomonas europaea based bioassay. Besides the previously described brachialactone (1), root exudates contained 3-epi-brachialactone (2), the C3-epimer of 1 (m/z 334), as well as 16-hydroxy-3-epi-brachialactone (3) with an additional hydroxyl group at C16 (m/z 350) and 3,18-epoxy-9-hydroxy-4,7-seco-brachialactone (4), which is a ring opened brachialactone derivative with a 3,18 epoxide ring and a hydroxyl group at C9 (m/z 332). The 3-epi-brachialactone (2) showed highest NI activity (ED50 ~ 20 μg mL-1, ED80 ~ 40 μg mL-1), followed by compound 4 with intermediate (ED50 ~ 40 μg mL-1), brachialactone (1) with low and compound 3 without activity. In coherence with previous reports on fusicoccanes, stereochemistry at C3 was of high relevance for the biological activity (NI potential) of brachialactones.
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Affiliation(s)
- Konrad Egenolf
- Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, 70593, Stuttgart, Germany; The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Km 17 Recta Cali-Palmira, A.A, 6713, Cali, Colombia
| | - Jürgen Conrad
- Institute of Chemistry, University of Hohenheim, 70593, Stuttgart, Germany
| | - Jochen Schöne
- Institute of Phytomedicine, University of Hohenheim, 70593, Stuttgart, Germany
| | | | - Uwe Beifuß
- Institute of Chemistry, University of Hohenheim, 70593, Stuttgart, Germany
| | - Frank Walker
- Institute of Phytomedicine, University of Hohenheim, 70593, Stuttgart, Germany
| | - Jonathan Nuñez
- The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Km 17 Recta Cali-Palmira, A.A, 6713, Cali, Colombia
| | - Jacobo Arango
- The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Km 17 Recta Cali-Palmira, A.A, 6713, Cali, Colombia
| | - Hannes Karwat
- Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, 70593, Stuttgart, Germany; The Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), Km 17 Recta Cali-Palmira, A.A, 6713, Cali, Colombia
| | - Georg Cadisch
- Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, 70593, Stuttgart, Germany
| | - Günter Neumann
- Institute of Crop Sciences, University of Hohenheim, 70593, Stuttgart, Germany
| | - Frank Rasche
- Institute of Agricultural Sciences in the Tropics (Hans-Ruthenberg-Institute), University of Hohenheim, 70593, Stuttgart, Germany.
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33
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Li F, Lin S, Zhang S, Pan L, Chai C, Su JC, Yang B, Liu J, Wang J, Hu Z, Zhang Y. Modified Fusicoccane-Type Diterpenoids from Alternaria brassicicola. JOURNAL OF NATURAL PRODUCTS 2020; 83:1931-1938. [PMID: 32520548 DOI: 10.1021/acs.jnatprod.0c00165] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Seven new modified fusicoccane-type diterpenoids (1-7), together with two known congeners (8 and 9), were obtained from Alternaria brassicicola. Their structures were elucidated from a combination of NMR and HRESIMS data and 13C NMR calculation as well as DP4+ probability analyses, and the absolute configurations of 1-5 were determined by ECD calculation and single-crystal X-ray diffraction (Cu Kα). Compounds 1-3 belong to a rare class of 16-nor-dicyclopenta[a,d]cyclooctane diterpenoids, and compounds 2 and 4 represent the first examples of fusicoccane-type diterpenoids featuring two previously undescribed tetracyclic 5/6/6/5 ring systems, while compound 5 features a previously undescribed tetracyclic 5/8/5/3 ring system. Compound 7 was moderately anti-inflammatory, and compounds 2, 3, 5, and 7 were weakly cytotoxic.
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Affiliation(s)
- Fengli Li
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Shuang Lin
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Sitian Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Lifen Pan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Chenwei Chai
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Jun-Cheng Su
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, Guangdong Province, People's Republic of China
| | - Beiye Yang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Junjun Liu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Jianping Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Zhengxi Hu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, People's Republic of China
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34
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Wolter M, de Vink P, Neves JF, Srdanović S, Higuchi Y, Kato N, Wilson A, Landrieu I, Brunsveld L, Ottmann C. Selectivity via Cooperativity: Preferential Stabilization of the p65/14-3-3 Interaction with Semisynthetic Natural Products. J Am Chem Soc 2020; 142:11772-11783. [PMID: 32501683 PMCID: PMC8022324 DOI: 10.1021/jacs.0c02151] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
![]()
Natural
compounds are an important class of potent drug molecules
including some retrospectively found to act as stabilizers of protein–protein
interactions (PPIs). However, the design of synthetic PPI stabilizers
remains an understudied approach. To date, there are limited examples
where cooperativity has been utilized to guide the optimization of
a PPI stabilizer. The 14-3-3 scaffold proteins provide an excellent
platform to explore PPI stabilization because these proteins mediate
several hundred PPIs, and a class of natural compounds, the fusicoccanes,
are known to stabilize a subset of 14-3-3 protein interactions. 14-3-3
has been reported to negatively regulate the p65 subunit of the NF-κB
transcription factor, which qualifies this protein complex as a potential
target for drug discovery to control cell proliferation. Here, we
report the high-resolution crystal structures of two 14-3-3 binding
motifs of p65 in complex with 14-3-3. A semisynthetic natural product
derivative, DP-005, binds to an interface pocket of the p65/14-3-3
complex and concomitantly stabilizes it. Cooperativity analyses of
this interaction, and other disease relevant 14-3-3-PPIs, demonstrated
selectivity of DP-005 for the p65/14-3-3 complex. The adaptation of
a cooperative binding model provided a general approach to characterize
stabilization and to assay for selectivity of PPI stabilizers.
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Affiliation(s)
- Madita Wolter
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Technische Universiteit Eindhoven, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Pim de Vink
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Technische Universiteit Eindhoven, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - João Filipe Neves
- U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Université de Lille, Inserm, CHU Lille, Institut Pasteur de Lille, Lille F-59000, France.,CNRS ERL9002 Integrative Structural Biology, Lille F-59000, France
| | - Sonja Srdanović
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United Kingdom
| | - Yusuke Higuchi
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Nobuo Kato
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Andrew Wilson
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United Kingdom.,Astbury Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United Kingdom
| | - Isabelle Landrieu
- U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Université de Lille, Inserm, CHU Lille, Institut Pasteur de Lille, Lille F-59000, France.,CNRS ERL9002 Integrative Structural Biology, Lille F-59000, France
| | - Luc Brunsveld
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Technische Universiteit Eindhoven, P.O. Box 513, Eindhoven 5600 MB, The Netherlands
| | - Christian Ottmann
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Technische Universiteit Eindhoven, P.O. Box 513, Eindhoven 5600 MB, The Netherlands.,Department of Organic Chemistry, University of Duisburg-Essen, 45117, Essen, Germany
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35
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Gannon M, Yacoubian TA. 007 (x2)-3-3: 14-3-3 Targeted Compounds as Double Agents. Trends Pharmacol Sci 2020; 41:431-433. [PMID: 32402470 DOI: 10.1016/j.tips.2020.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 05/03/2020] [Indexed: 11/28/2022]
Abstract
14-3-3 Proteins enact a range of cellular functions through protein-protein interactions (PPIs) with client proteins. Kaplan and colleagues recently demonstrated that a semisynthetic compound was able to selectively stabilize or disrupt specific interactions, depending on the binding partner. This finding presents an exciting possibility of designing other 14-3-3 compounds to regulate critical 14-3-3 interactions.
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Affiliation(s)
- Mary Gannon
- Center for Neurodegeneration and Experimental Therapeutics, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Talene A Yacoubian
- Center for Neurodegeneration and Experimental Therapeutics, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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36
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Lin FL, Lauterbach L, Zou J, Wang YH, Lv JM, Chen GD, Hu D, Gao H, Yao XS, Dickschat JS. Mechanistic Characterization of the Fusicoccane-type Diterpene Synthase for Myrothec-15(17)-en-7-ol. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00377] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Fu-Long Lin
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Guangzhou 510632, P. R. China
| | - Lukas Lauterbach
- Kekulé-Institute of Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Strasse 1, Bonn 53121, Germany
| | - Jian Zou
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Guangzhou 510632, P. R. China
- Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Guangzhou 510632, P. R. China
| | - Yong-Heng Wang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Guangzhou 510632, P. R. China
| | - Jian-Ming Lv
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Guangzhou 510632, P. R. China
| | - Guo-Dong Chen
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Guangzhou 510632, P. R. China
| | - Dan Hu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Guangzhou 510632, P. R. China
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Guangzhou 510632, P. R. China
| | - Xin-Sheng Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Guangzhou 510632, P. R. China
| | - Jeroen S. Dickschat
- Kekulé-Institute of Organic Chemistry and Biochemistry, University of Bonn, Gerhard-Domagk-Strasse 1, Bonn 53121, Germany
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Driller R, Garbe D, Mehlmer N, Fuchs M, Raz K, Major DT, Brück T, Loll B. Current understanding and biotechnological application of the bacterial diterpene synthase CotB2. Beilstein J Org Chem 2019; 15:2355-2368. [PMID: 31666870 PMCID: PMC6808215 DOI: 10.3762/bjoc.15.228] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 09/12/2019] [Indexed: 01/05/2023] Open
Abstract
CotB2 catalyzes the first committed step in cyclooctatin biosynthesis of the soil bacterium Streptomyces melanosporofaciens. To date, CotB2 represents the best studied bacterial diterpene synthase. Its reaction mechanism has been addressed by isoptope labeling, targeted mutagenesis and theoretical computations in the gas phase, as well as full enzyme molecular dynamic simulations. By X-ray crystallography different snapshots of CotB2 from the open, inactive, to the closed, active conformation have been obtained in great detail, allowing us to draw detailed conclusions regarding the catalytic mechanism at the molecular level. Moreover, numerous alternative geranylgeranyl diphosphate cyclization products obtained by CotB2 mutagenesis have exciting applications for the sustainable production of high value bioactive substances.
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Affiliation(s)
- Ronja Driller
- Institute of Chemistry and Biochemistry, Laboratory of Structural Biochemistry, Freie Universität Berlin, Takustr. 6, 14195 Berlin, Germany
- present address: Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, 8000 Aarhus C, Denmark
- present address: Danish Research Institute of Translational Neuroscience - DANDRITE, Nordic-EMBL Partnership for Molecular Medicine, Aarhus C, Denmark
| | - Daniel Garbe
- Werner Siemens Chair of Synthetic Biotechnology, Dept. of Chemistry, Technical University of Munich (TUM), Lichtenbergstr. 4, 85748 Garching, Germany
| | - Norbert Mehlmer
- Werner Siemens Chair of Synthetic Biotechnology, Dept. of Chemistry, Technical University of Munich (TUM), Lichtenbergstr. 4, 85748 Garching, Germany
| | - Monika Fuchs
- Werner Siemens Chair of Synthetic Biotechnology, Dept. of Chemistry, Technical University of Munich (TUM), Lichtenbergstr. 4, 85748 Garching, Germany
| | - Keren Raz
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Dan Thomas Major
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Thomas Brück
- Werner Siemens Chair of Synthetic Biotechnology, Dept. of Chemistry, Technical University of Munich (TUM), Lichtenbergstr. 4, 85748 Garching, Germany
| | - Bernhard Loll
- Institute of Chemistry and Biochemistry, Laboratory of Structural Biochemistry, Freie Universität Berlin, Takustr. 6, 14195 Berlin, Germany
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Valeur E, Narjes F, Ottmann C, Plowright AT. Emerging modes-of-action in drug discovery. MEDCHEMCOMM 2019; 10:1550-1568. [PMID: 31673315 PMCID: PMC6786009 DOI: 10.1039/c9md00263d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 06/21/2019] [Indexed: 12/13/2022]
Abstract
An increasing focus on complex biology to cure diseases rather than merely treat symptoms has transformed how drug discovery can be approached. Instead of activating or blocking protein function, a growing repertoire of drug modalities can be leveraged or engineered to hijack cellular processes, such as translational regulation or degradation mechanisms. Drug hunters can therefore access a wider arsenal of modes-of-action to modulate biological processes and this review summarises these emerging strategies by highlighting the most representative examples of these approaches.
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Affiliation(s)
- Eric Valeur
- Medicinal Chemistry , Research and Early Development, Cardiovascular, Renal & Metabolism , BioPharmaceuticals R&D , AstraZeneca, Gothenburg , 43183 Mölndal , Sweden .
| | - Frank Narjes
- Medicinal Chemistry , Research and Early Development, Respiratory, Inflammation and Autoimmune (RIA) , BioPharmaceuticals R&D , AstraZeneca, Gothenburg , 43183 Mölndal , Sweden
| | - Christian Ottmann
- Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 , AZ , Eindhoven , the Netherlands
- Department of Chemistry , University of Duisburg-Essen , Universitätsstraße 7 , 45117 , Essen , Germany
| | - Alleyn T Plowright
- Integrated Drug Discovery , Sanofi-Aventis Deutschland GmbH , Industriepark Höchst , D-65926 Frankfurt am Main , Germany
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Evanno L, Belotti D, Toromanoff E, Cossy J. Synthesis of 12-epi
-Protopanaxadiol and Formal Synthesis of Ginsenoside Chikusetsusaponin-LT8. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Laurent Evanno
- Molecular, Macromolecular Chemistry and Materials; ESPCI Paris, CNRS, PLS; 10 rue Vauquelin 75231 Paris Cedex 05 France
| | - Damien Belotti
- Molecular, Macromolecular Chemistry and Materials; ESPCI Paris, CNRS, PLS; 10 rue Vauquelin 75231 Paris Cedex 05 France
| | - Edmond Toromanoff
- Molecular, Macromolecular Chemistry and Materials; ESPCI Paris, CNRS, PLS; 10 rue Vauquelin 75231 Paris Cedex 05 France
| | - Janine Cossy
- Molecular, Macromolecular Chemistry and Materials; ESPCI Paris, CNRS, PLS; 10 rue Vauquelin 75231 Paris Cedex 05 France
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40
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Zeng T, Liu Z, Liu H, He W, Tang X, Xie L, Wu R. Exploring Chemical and Biological Space of Terpenoids. J Chem Inf Model 2019; 59:3667-3678. [DOI: 10.1021/acs.jcim.9b00443] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Tao Zeng
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P.R. China
| | - Zhihong Liu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, P.R. China
| | - Huawei Liu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P.R. China
| | - Wengan He
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P.R. China
| | - Xiaowen Tang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P.R. China
| | - Liwei Xie
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, P.R. China
| | - Ruibo Wu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P.R. China
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41
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Bie Q, Chen C, Yu M, Guo J, Wang J, Liu J, Zhou Y, Zhu H, Zhang Y. Dongtingnoids A-G: Fusicoccane Diterpenoids from a Penicillium Species. JOURNAL OF NATURAL PRODUCTS 2019; 82:80-86. [PMID: 30632752 DOI: 10.1021/acs.jnatprod.8b00694] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Five new diterpenoid glycosides, dongtingnoids A-E (1-5), two new diterpenoid aglycones, dongtingnoids F and G (6 and 7), and two known analogues, cotylenins E and J (8 and 9), belonging to the fusicoccane family, were isolated from the fungus Penicillium sp. DT10, which was derived from wetland soil from Dongting Lake. Their structures and absolute configurations were elucidated based on spectroscopic analyses, acid hydrolysis, ECD calculations, and X-ray crystallography. Dongtingnoid C (3) is the first 16-nor-fusicoccane diterpenoid glycoside reported and is proposed to form by oxidative demethylation. Compounds 1, 4, and 5 showed comparable seed-germination-promoting activities to that previously reported for the growth regulator cotylenin E (8).
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Affiliation(s)
- Qiong Bie
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , People's Republic of China
| | - Chunmei Chen
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , People's Republic of China
| | - Muyuan Yu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , People's Republic of China
| | - Jieru Guo
- Department of Pharmacy, Tongji Hospital, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , People's Republic of China
| | - Jianping Wang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , People's Republic of China
| | - Junjun Liu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , People's Republic of China
| | - Yuan Zhou
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , People's Republic of China
| | - Hucheng Zhu
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , People's Republic of China
| | - Yonghui Zhang
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College , Huazhong University of Science and Technology , Wuhan 430030 , People's Republic of China
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Camoni L, Visconti S, Aducci P, Marra M. From plant physiology to pharmacology: fusicoccin leaves the leaves. PLANTA 2019; 249:49-57. [PMID: 30467630 DOI: 10.1007/s00425-018-3051-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 11/14/2018] [Indexed: 06/09/2023]
Abstract
This review highlights 50 years of research on the fungal diterpene fusicoccin, during which the molecule went from a tool in plant physiology research to a pharmacological agent in treating animal diseases. Fusicoccin is a phytotoxic glycosylated diterpene produced by the fungus Phomopsis amygdali, a pathogen of almond and peach plants. Widespread interest in this molecule started when it was discovered that it is capable of causing stomate opening in all higher plants, thereby inducing wilting of leaves. Thereafter, FC became, and still is, a tool in plant physiology, due to its ability to influence a number of fundamental processes, which are dependent on the activation of the plasma membrane H+-ATPase. Molecular studies carried out in the last 20 years clarified details of the mechanism of proton pump stimulation, which involves the fusicoccin-mediated irreversible stabilization of the complex between the H+-ATPase and activatory 14-3-3 proteins. More recently, FC has been shown to influence cellular processes involving 14-3-3 binding to client proteins both in plants and animals. In this review, we report the milestones achieved in more than 50 years of research in plants and highlight recent advances in animals that have allowed this diterpene to be used as a 14-3-3 targeted drug.
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Affiliation(s)
- Lorenzo Camoni
- Department of Biology, University of Rome Tor Vergata, via della Ricerca Scientifica, 00133, Rome, Italy.
| | - Sabina Visconti
- Department of Biology, University of Rome Tor Vergata, via della Ricerca Scientifica, 00133, Rome, Italy
| | - Patrizia Aducci
- Department of Biology, University of Rome Tor Vergata, via della Ricerca Scientifica, 00133, Rome, Italy
| | - Mauro Marra
- Department of Biology, University of Rome Tor Vergata, via della Ricerca Scientifica, 00133, Rome, Italy
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43
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Hu Z, Sun W, Li F, Guan J, Lu Y, Liu J, Tang Y, Du G, Xue Y, Luo Z, Wang J, Zhu H, Zhang Y. Fusicoccane-Derived Diterpenoids from Alternaria brassicicola: Investigation of the Structure–Stability Relationship and Discovery of an IKKβ Inhibitor. Org Lett 2018; 20:5198-5202. [DOI: 10.1021/acs.orglett.8b02137] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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44
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Rajarammohan S, Pradhan AK, Pental D, Kaur J. Genome-wide association mapping in Arabidopsis identifies novel genes underlying quantitative disease resistance to Alternaria brassicae. MOLECULAR PLANT PATHOLOGY 2018; 19:1719-1732. [PMID: 29271603 PMCID: PMC6638106 DOI: 10.1111/mpp.12654] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 12/18/2017] [Accepted: 12/20/2017] [Indexed: 05/19/2023]
Abstract
Quantitative disease resistance (QDR) is the predominant form of resistance against necrotrophic pathogens. The genes and mechanisms underlying QDR are not well known. In the current study, the Arabidopsis-Alternaria brassicae pathosystem was used to uncover the genetic architecture underlying resistance to A. brassicae in a set of geographically diverse Arabidopsis accessions. Arabidopsis accessions revealed a rich variation in the host responses to the pathogen, varying from complete resistance to high susceptibility. Genome-wide association (GWA) mapping revealed multiple regions to be associated with disease resistance. A subset of genes prioritized on the basis of gene annotations and evidence of transcriptional regulation in other biotic stresses was analysed using a reverse genetics approach employing T-DNA insertion mutants. The mutants of three genes, namely At1g06990 (GDSL-motif lipase), At3g25180 (CYP82G1) and At5g37500 (GORK), displayed an enhanced susceptibility relative to the wild-type. These genes are involved in the development of morphological phenotypes (stomatal aperture) and secondary metabolite synthesis, thus defining some of the diverse facets of quantitative resistance against A. brassicae.
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Affiliation(s)
| | - Akshay Kumar Pradhan
- Department of GeneticsUniversity of Delhi South CampusNew Delhi110021India
- Centre for Genetic Manipulation of Crop PlantsUniversity of Delhi South CampusNew Delhi110021India
| | - Deepak Pental
- Centre for Genetic Manipulation of Crop PlantsUniversity of Delhi South CampusNew Delhi110021India
| | - Jagreet Kaur
- Department of GeneticsUniversity of Delhi South CampusNew Delhi110021India
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45
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Salvati AE, Law JA, Liriano J, Frederich JH. Modular access to functionalized 5-8-5 fused ring systems via a photoinduced cycloisomerization reaction. Chem Sci 2018; 9:5389-5393. [PMID: 30009010 PMCID: PMC6009507 DOI: 10.1039/c8sc00999f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 05/22/2018] [Indexed: 12/13/2022] Open
Abstract
A 5-8-5 carbocyclic ring system forms the core of over 30 distinct natural products. Several members of this family have gained attention for their diverse activity in cell culture. In these cases, biological function is mediated by the arrangement of substituents around a conserved 5-8-5 nucleus. Despite the potential applications of this privileged substructure in medicinal chemistry, modular strategies for its assembly are underdeveloped. Herein, we describe a cycloisomerization reaction that forms the 5-8-5 framework directly. This strategy uniquely allows access to gram quantities of this valuable scaffold in four steps.
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Affiliation(s)
- Anna E Salvati
- Department of Chemistry and Biochemistry , Florida State University , 95 Cheiftan Way , Tallahassee , FL 32306 , USA .
| | - James A Law
- Department of Chemistry and Biochemistry , Florida State University , 95 Cheiftan Way , Tallahassee , FL 32306 , USA .
| | - Josue Liriano
- Department of Chemistry and Biochemistry , Florida State University , 95 Cheiftan Way , Tallahassee , FL 32306 , USA .
| | - James H Frederich
- Department of Chemistry and Biochemistry , Florida State University , 95 Cheiftan Way , Tallahassee , FL 32306 , USA .
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46
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Ballone A, Centorrino F, Wolter M, Ottmann C. Structural characterization of 14-3-3ζ in complex with the human Son of sevenless homolog 1 (SOS1). J Struct Biol 2018; 202:210-215. [DOI: 10.1016/j.jsb.2018.01.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 01/28/2018] [Accepted: 01/30/2018] [Indexed: 12/16/2022]
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47
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Yin Z, He Y, Chiu P. Application of (4+3) cycloaddition strategies in the synthesis of natural products. Chem Soc Rev 2018; 47:8881-8924. [DOI: 10.1039/c8cs00532j] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This review summarizes the applications of (4+3) cycloadditions, both classical and formal, in the syntheses of natural products in the last two decades.
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Affiliation(s)
- Zengsheng Yin
- Department of Chemistry
- State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- P. R. China
| | - Yun He
- Department of Chemistry
- State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- P. R. China
| | - Pauline Chiu
- Department of Chemistry
- State Key Laboratory of Synthetic Chemistry
- The University of Hong Kong
- P. R. China
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48
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Li F, Sun W, Guan J, Lu Y, Lin S, Zhang S, Gao W, Liu J, Du G, Wang J, Zhu H, Qi C, Hu Z, Zhang Y. Anti-inflammatory fusicoccane-type diterpenoids from the phytopathogenic fungus Alternaria brassicicola. Org Biomol Chem 2018; 16:8751-8760. [DOI: 10.1039/c8ob02353k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Eight undescribed fusicoccane-type diterpenoids (1–8), wherein 1 had a rare 16-nor-dicyclopenta[a,d]cyclooctane skeleton, were isolated from Alternaria brassicicola.
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49
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Brill ZG, Condakes ML, Ting CP, Maimone TJ. Navigating the Chiral Pool in the Total Synthesis of Complex Terpene Natural Products. Chem Rev 2017; 117:11753-11795. [PMID: 28293944 PMCID: PMC5638449 DOI: 10.1021/acs.chemrev.6b00834] [Citation(s) in RCA: 202] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The pool of abundant chiral terpene building blocks (i.e., "chiral pool terpenes") has long served as a starting point for the chemical synthesis of complex natural products, including many terpenes themselves. As inexpensive and versatile starting materials, such compounds continue to influence modern synthetic chemistry. This review highlights 21st century terpene total syntheses which themselves use small, terpene-derived materials as building blocks. An outlook to the future of research in this area is highlighted as well.
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Affiliation(s)
- Zachary G. Brill
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
| | - Matthew L. Condakes
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
| | - Chi P. Ting
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
| | - Thomas J. Maimone
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
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50
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Kaplan A, Morquette B, Kroner A, Leong S, Madwar C, Sanz R, Banerjee SL, Antel J, Bisson N, David S, Fournier AE. Small-Molecule Stabilization of 14-3-3 Protein-Protein Interactions Stimulates Axon Regeneration. Neuron 2017; 93:1082-1093.e5. [PMID: 28279353 DOI: 10.1016/j.neuron.2017.02.018] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 01/11/2017] [Accepted: 02/07/2017] [Indexed: 12/19/2022]
Abstract
Damaged central nervous system (CNS) neurons have a poor ability to spontaneously regenerate, causing persistent functional deficits after injury. Therapies that stimulate axon growth are needed to repair CNS damage. 14-3-3 adaptors are hub proteins that are attractive targets to manipulate cell signaling. We identify a positive role for 14-3-3s in axon growth and uncover a developmental regulation of the phosphorylation and function of 14-3-3s. We show that fusicoccin-A (FC-A), a small-molecule stabilizer of 14-3-3 protein-protein interactions, stimulates axon growth in vitro and regeneration in vivo. We show that FC-A stabilizes a complex between 14-3-3 and the stress response regulator GCN1, inducing GCN1 turnover and neurite outgrowth. These findings show that 14-3-3 adaptor protein complexes are druggable targets and identify a new class of small molecules that may be further optimized for the repair of CNS damage.
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Affiliation(s)
- Andrew Kaplan
- Department of Neurology and Neurosurgery, Montréal Neurological Institute, McGill University, Montréal, QC H3A 2B4, Canada
| | - Barbara Morquette
- Department of Neurology and Neurosurgery, Montréal Neurological Institute, McGill University, Montréal, QC H3A 2B4, Canada
| | - Antje Kroner
- Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI 53295, USA; Centre for Research in Neuroscience, The Research Institute of the McGill University Health Centre, Montréal, QC H3G 1A4, Canada
| | - SooYuen Leong
- Department of Neurology and Neurosurgery, Montréal Neurological Institute, McGill University, Montréal, QC H3A 2B4, Canada
| | - Carolin Madwar
- Department of Chemistry, McGill University, Montréal, QC H3A 0B8, Canada
| | - Ricardo Sanz
- Department of Neurology and Neurosurgery, Montréal Neurological Institute, McGill University, Montréal, QC H3A 2B4, Canada
| | - Sara L Banerjee
- Département de Biologie Moléculaire, Biochimie Médicale et Pathologie, and Centre de Recherche sur le Cancer, Université Laval, Québec City, QC G1V 0A6, Canada
| | - Jack Antel
- Department of Neurology and Neurosurgery, Montréal Neurological Institute, McGill University, Montréal, QC H3A 2B4, Canada
| | - Nicolas Bisson
- Département de Biologie Moléculaire, Biochimie Médicale et Pathologie, and Centre de Recherche sur le Cancer, Université Laval, Québec City, QC G1V 0A6, Canada
| | - Samuel David
- Centre for Research in Neuroscience, The Research Institute of the McGill University Health Centre, Montréal, QC H3G 1A4, Canada
| | - Alyson E Fournier
- Department of Neurology and Neurosurgery, Montréal Neurological Institute, McGill University, Montréal, QC H3A 2B4, Canada.
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