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Kühl N, Lang J, Leuthold MM, Klein CD. Discovery of potent benzoxaborole inhibitors against SARS-CoV-2 main and dengue virus proteases. Eur J Med Chem 2022; 240:114585. [PMID: 35863275 PMCID: PMC9272583 DOI: 10.1016/j.ejmech.2022.114585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/08/2022] [Accepted: 06/20/2022] [Indexed: 11/04/2022]
Abstract
The RNA viruses SARS-CoV-2 and dengue pose a major threat to human health worldwide and their proteases (Mpro; NS2B/NS3) are considered as promising targets for drug development. We present the synthesis and biological evaluation of novel benzoxaborole inhibitors of these two proteases. The most active compound achieves single-digit micromolar activity against SARS-CoV-2 Mpro in a biochemical assay. The most active substance against dengue NS2B/NS3 protease has submicromolar activity in cells (EC50 0.54 μM) and inhibits DENV-2 replication in cell culture. Most benzoxaboroles had no relevant cytotoxicity or significant off-target inhibition. Furthermore, the class demonstrated passive membrane penetration and stability against the evaluated proteases. This compound class may contribute to the development of antiviral agents with activity against DENV or SARS-CoV-2.
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Affiliation(s)
- Nikos Kühl
- Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology IPMB, Heidelberg University, Im Neuenheimer Feld 364, 69120, Heidelberg, Germany
| | - Johannes Lang
- Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology IPMB, Heidelberg University, Im Neuenheimer Feld 364, 69120, Heidelberg, Germany
| | - Mila M Leuthold
- Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology IPMB, Heidelberg University, Im Neuenheimer Feld 364, 69120, Heidelberg, Germany
| | - Christian D Klein
- Medicinal Chemistry, Institute of Pharmacy and Molecular Biotechnology IPMB, Heidelberg University, Im Neuenheimer Feld 364, 69120, Heidelberg, Germany.
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Balak DMW, Hajdarbegovic E. A new topical. Br J Dermatol 2021; 186:5-6. [PMID: 34726775 DOI: 10.1111/bjd.20817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 09/28/2021] [Indexed: 11/28/2022]
Affiliation(s)
- D M W Balak
- Department of Dermatology, LangeLand Hospital, Zoetermeer, the Netherlands.,Department of Dermatology, Ghent University Hospital, Ghent, Belgium
| | - E Hajdarbegovic
- Department of Dermatology, DermaHaven, Rotterdam, the Netherlands
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Abstract
Alopecia areata (AA) is an autoimmune condition that affects up to 2% of the general population. Currently available treatment options for AA are of limited efficacy and can be associated with adverse effects. The advancement in understanding of the genetic and molecular mechanisms of AA has led to the development of novel treatment options, with the Janus kinase (JAK) inhibitor class of drugs at the forefront of ongoing clinical trials. Platelet-rich plasma, fecal transplants, and cytokine-targeted therapy with ustekinumab and dupilumab have also been shown to regrow hair in patients with AA in individual case reports or small studies. Several other novel therapies have preliminary data or are being tested in clinical trials.
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Lansang P, Lam JM, Marcoux D, Prajapati VH, Spring S, Lara-Corrales I. Approach to the Assessment and Management of Pediatric Patients With Atopic Dermatitis: A Consensus Document. Section III: Treatment Options for Pediatric Atopic Dermatitis. J Cutan Med Surg 2019; 23:19S-31S. [PMID: 31692376 DOI: 10.1177/1203475419882647] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Because atopic dermatitis (AD) is a chronic, relapsing disease, treatment requires the use of both active therapy to control flares and preventative maintenance therapy to promote integrity of the skin barrier. In this third of four sections, important clinical considerations for the treatment of pediatric AD are reviewed. Emerging therapies in development for pediatric AD are introduced.
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Affiliation(s)
- Perla Lansang
- Division of Dermatology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Division of Dermatology, Faculty of Medicine, University of Toronto, ON, Canada.,Division of Paediatric Medicine, Section of Dermatology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Joseph M Lam
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, Canada.,Department of Pediatrics, University of British Columbia, Vancouver, Canada
| | - Danielle Marcoux
- Division of Dermatology, Department of Paediatrics, Sainte-Justine University Hospital Center, University of Montreal, QC, Canada
| | - Vimal H Prajapati
- Division of Dermatology, Department of Medicine, University of Calgary, AB, Canada.,Division of Community Pediatrics, Department of Pediatrics, University of Calgary, AB, Canada.,Division of Pediatric Rheumatology, Department of Pediatrics, University of Calgary, AB, Canada.,Dermatology Research Institute, Calgary, AB, Canada
| | - Shanna Spring
- Division of Dermatology and Rheumatology, Children's Hospital of Eastern Ontario, Ottawa, Canada.,Department of Pediatrics, University of Ottawa, ON, Canada.,Division of Dermatology, Department of Medicine, University of Ottawa, ON, Canada
| | - Irene Lara-Corrales
- Division of Paediatric Medicine, Section of Dermatology, The Hospital for Sick Children, Toronto, ON, Canada.,Department of Pediatrics, Faculty of Medicine, University of Toronto, ON, Canada
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