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Foulkes MJ, Tolliday FH, Henry KM, Renshaw SA, Jones S. Evaluation of the anti-inflammatory effects of synthesised tanshinone I and isotanshinone I analogues in zebrafish. PLoS One 2020; 15:e0240231. [PMID: 33022012 PMCID: PMC7537861 DOI: 10.1371/journal.pone.0240231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 09/22/2020] [Indexed: 01/13/2023] Open
Abstract
During inflammation, dysregulated neutrophil behaviour can play a major role in a range of chronic inflammatory diseases, for many of which current treatments are generally ineffective. Recently, specific naturally occurring tanshinones have shown promising anti-inflammatory effects by targeting neutrophils in vivo, yet such tanshinones, and moreover, their isomeric isotanshinone counterparts, are still a largely underexplored class of compounds, both in terms of synthesis and biological effects. To explore the anti-inflammatory effects of isotanshinones, and the tanshinones more generally, a series of substituted tanshinone and isotanshinone analogues was synthesised, alongside other structurally similar molecules. Evaluation of these using a transgenic zebrafish model of neutrophilic inflammation revealed differential anti-inflammatory profiles in vivo, with a number of compounds exhibiting promising effects. Several compounds reduce initial neutrophil recruitment and/or promote resolution of neutrophilic inflammation, of which two also result in increased apoptosis of human neutrophils. In particular, the methoxy-substituted tanshinone 39 specifically accelerates resolution of inflammation without affecting the recruitment of neutrophils to inflammatory sites, making this a particularly attractive candidate for potential pro-resolution therapeutics, as well as a possible lead for future development of functionalised tanshinones as molecular tools and/or chemical probes. The structurally related β-lapachones promote neutrophil recruitment but do not affect resolution. We also observed notable differences in toxicity profiles between compound classes. Overall, we provide new insights into the in vivo anti-inflammatory activities of several novel tanshinones, isotanshinones, and structurally related compounds.
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Affiliation(s)
- Matthew J. Foulkes
- Department of Chemistry, The University of Sheffield, Sheffield, United Kingdom
- The Bateson Centre, The University of Sheffield, Sheffield, United Kingdom
- Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, United Kingdom
| | - Faith H. Tolliday
- The Bateson Centre, The University of Sheffield, Sheffield, United Kingdom
- Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, United Kingdom
| | - Katherine M. Henry
- The Bateson Centre, The University of Sheffield, Sheffield, United Kingdom
- Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, United Kingdom
| | - Stephen A. Renshaw
- The Bateson Centre, The University of Sheffield, Sheffield, United Kingdom
- Department of Infection, Immunity & Cardiovascular Disease, The University of Sheffield, Sheffield, United Kingdom
| | - Simon Jones
- Department of Chemistry, The University of Sheffield, Sheffield, United Kingdom
- * E-mail:
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Robertson AL, Ogryzko NV, Henry KM, Loynes CA, Foulkes MJ, Meloni MM, Wang X, Ford C, Jackson M, Ingham PW, Wilson HL, Farrow SN, Solari R, Flower RJ, Jones S, Whyte MKB, Renshaw SA. Identification of benzopyrone as a common structural feature in compounds with anti-inflammatory activity in a zebrafish phenotypic screen. Dis Model Mech 2016; 9:621-32. [PMID: 27079522 PMCID: PMC4920152 DOI: 10.1242/dmm.024935] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 04/04/2016] [Indexed: 12/14/2022] Open
Abstract
Neutrophils are essential for host defence and are recruited to sites of inflammation in response to tissue injury or infection. For inflammation to resolve, these cells must be cleared efficiently and in a controlled manner, either by apoptosis or reverse migration. If the inflammatory response is not well-regulated, persistent neutrophils can cause damage to host tissues and contribute to the pathogenesis of chronic inflammatory diseases, which respond poorly to current treatments. It is therefore important to develop drug discovery strategies that can identify new therapeutics specifically targeting neutrophils, either by promoting their clearance or by preventing their recruitment. Our recent in vivo chemical genetic screen for accelerators of inflammation resolution identified a subset of compounds sharing a common chemical signature, the bicyclic benzopyrone rings. Here, we further investigate the mechanisms of action of the most active of this chemical series, isopimpinellin, in our zebrafish model of neutrophilic inflammation. We found that this compound targets both the recruitment and resolution phases of the inflammatory response. Neutrophil migration towards a site of injury is reduced by isopimpinellin and this occurs as a result of PI3K inhibition. We also show that isopimpinellin induces neutrophil apoptosis to drive inflammation resolution in vivo using a new zebrafish reporter line detecting in vivo neutrophil caspase-3 activity and allowing quantification of flux through the apoptotic pathway in real time. Finally, our studies reveal that clinically available ‘cromones’ are structurally related to isopimpinellin and have previously undescribed pro-resolution activity in vivo. These findings could have implications for the therapeutic use of benzopyrones in inflammatory disease. Summary: Zebrafish inflammation screen identifies a new series of structurally related compounds with combined anti-inflammatory and pro-resolution activity, and reveals a previously unknown mechanism of action of clinical cromones.
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Affiliation(s)
- Anne L Robertson
- The Bateson Centre, University of Sheffield, Sheffield, S10 2TN, UK Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, S10 2TN, UK Stem Cell Program and Division of Hematology/Oncology, Children's Hospital Boston, Howard Hughes Medical Institute, Harvard Stem Cell Institute, Harvard Medical School, Boston, 02115 MA, USA
| | - Nikolay V Ogryzko
- The Bateson Centre, University of Sheffield, Sheffield, S10 2TN, UK Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, S10 2TN, UK
| | - Katherine M Henry
- The Bateson Centre, University of Sheffield, Sheffield, S10 2TN, UK Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, S10 2TN, UK
| | - Catherine A Loynes
- The Bateson Centre, University of Sheffield, Sheffield, S10 2TN, UK Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, S10 2TN, UK
| | - Matthew J Foulkes
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, S10 2TN, UK Department of Chemistry, University of Sheffield, Sheffield, S10 2TN, UK
| | - Marco M Meloni
- Department of Chemistry, University of Sheffield, Sheffield, S10 2TN, UK
| | - Xingang Wang
- Wishtech Medical Technology, Weihai, Shandong, 264200, China
| | - Christopher Ford
- Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, L7 9TX, UK MRC Arthritis Research UK Centre for Integrated Research into Musculoskeletal Ageing, University of Liverpool, Liverpool, L7 9TX, UK
| | - Malcolm Jackson
- Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, L7 9TX, UK MRC Arthritis Research UK Centre for Integrated Research into Musculoskeletal Ageing, University of Liverpool, Liverpool, L7 9TX, UK
| | - Philip W Ingham
- Institute of Molecular and Cell Biology, 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
| | - Heather L Wilson
- The Bateson Centre, University of Sheffield, Sheffield, S10 2TN, UK Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, S10 2TN, UK
| | - Stuart N Farrow
- Institute of Human Development, University of Manchester, Manchester, M13 9PL, UK
| | - Roberto Solari
- Faculty of Medicine, National Heart and Lung Institute, Imperial College London, Norfolk Place, London, W2 1NY, UK
| | - Roderick J Flower
- William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Simon Jones
- Department of Chemistry, University of Sheffield, Sheffield, S10 2TN, UK
| | - Moira K B Whyte
- MRC/UoE Centre for Inflammation Research, University of Edinburgh, The Queen's Medical Research Institute, Edinburgh, EH16 4TJ, UK
| | - Stephen A Renshaw
- The Bateson Centre, University of Sheffield, Sheffield, S10 2TN, UK Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, S10 2TN, UK MRC Arthritis Research UK Centre for Integrated Research into Musculoskeletal Ageing, University of Liverpool, Liverpool, L7 9TX, UK
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Foulkes MJ, Paveley ND, Worland A, Welham SJ, Thomas J, Snape JW. Major genetic changes in wheat with potential to affect disease tolerance. Phytopathology 2006; 96:680-8. [PMID: 18943141 DOI: 10.1094/phyto-96-0680] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
ABSTRACT Selection through plant breeding has resulted in most elite winter wheat germplasm in the United Kingdom containing the Rht-D1b semi-dwarfing allele, the 1BL.1RS chromosome arm translocation with rye, and an allele conferring suppression of awns. Near-isogenic lines (NILs) were used to test whether these major genetic changes have had any effect on disease tolerance. The ability of the NILs to tolerate epidemics of Septoria leaf blotch or stripe rust was measured in four field experiments over two seasons. Tolerance was quantified as yield loss per unit of green canopy area lost to disease. There was a trend for the presence of the 1BL.1RS translocation to decrease tolerance; however, this was not consistent across experiments and there was no effect of semi-dwarfing. The awned NIL exhibited decreased tolerance compared with the unawned NIL. There were significant differences in tolerance between the cultivar backgrounds in which the NILs were developed. Tolerance was lower in the modern genetic background of Weston, released in 1996, than in the genetic background of Maris Hunstman, released in 1972. The data suggest that certain physiological traits were associated with the tolerance differences among the backgrounds in these experiments. Potential yield, accumulation of stem soluble carbohydrate reserves, and grain sink capacity were negatively correlated with tolerance, whereas flag leaf area was positively correlated.
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