1
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Kim S, Lee S. Electrochemical synthesis of sulfinic and sulfonic esters from sulfonyl hydrazides. Org Biomol Chem 2024; 22:4436-4444. [PMID: 38742933 DOI: 10.1039/d4ob00215f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
An electrochemical synthetic method for the synthesis of sulfinic esters and sulfonic esters from sulfonyl hydrazides was developed. Alkyl sulfinic esters were synthesized by treating sulfonyl hydrazides with trialkyl orthoformate in a DMF solvent at a constant current of 5 mA and then optimizing the reaction conditions. Conversely, alkyl sulfonic esters were exclusively obtained when the reaction was conducted in alkyl alcohol solvents at a constant current of 15 mA. The various substituted arylsulfonyl hydrazides afforded moderate to good yields of the desired sulfinic esters and sulfonic esters. Mechanistic investigations revealed that sulfonyl radicals were formed through electrochemical oxidation and that they react with alkyl radicals or alkoxy radicals to generate the respective ester products.
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Affiliation(s)
- Suji Kim
- Department of Chemistry, Chonnam National University, Gwangju, 61186 Republic of Korea.
| | - Sunwoo Lee
- Department of Chemistry, Chonnam National University, Gwangju, 61186 Republic of Korea.
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2
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Li H, Zhou Y, Tan Z, Wang X, Zhang Y, Wang F, Feng X, Liu X. Enantioselective sulfonylation to construct 3-sulfonylated oxindoles. Chem Commun (Camb) 2024; 60:4354-4357. [PMID: 38546230 DOI: 10.1039/d4cc00802b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Asymmetric synthesis of 3-sulfonylated 3-substituted oxindoles through the addition of sodium sulfinate salts to 3-bromo-3-substituted oxindoles has been achieved using chiral nickel complexes of N,N'-dioxides. This method facilitates the creation of diverse chiral sulfonyl oxindoles, several of which display promising anticancer properties. Notably, the catalyst demonstrates remarkable tolerance to water, crucial for maintaining enantioselectivity. Furthermore, the utilization of topographic steric maps of the catalysts offers valuable insights into the mechanism underlying enantioselection reversal.
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Affiliation(s)
- Hongye Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Zheng Tan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiangyu Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Yuxin Zhang
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610064, China
| | - Fei Wang
- Center for Natural Products Research, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
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3
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Cysewski P, Jeliński T, Przybyłek M. Experimental and Theoretical Insights into the Intermolecular Interactions in Saturated Systems of Dapsone in Conventional and Deep Eutectic Solvents. Molecules 2024; 29:1743. [PMID: 38675562 PMCID: PMC11051893 DOI: 10.3390/molecules29081743] [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: 03/14/2024] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Solubility is not only a crucial physicochemical property for laboratory practice but also provides valuable insight into the mechanism of saturated system organization, as a measure of the interplay between various intermolecular interactions. The importance of these data cannot be overstated, particularly when dealing with active pharmaceutical ingredients (APIs), such as dapsone. It is a commonly used anti-inflammatory and antimicrobial agent. However, its low solubility hampers its efficient applications. In this project, deep eutectic solvents (DESs) were used as solubilizing agents for dapsone as an alternative to traditional solvents. DESs were composed of choline chloride and one of six polyols. Additionally, water-DES mixtures were studied as a type of ternary solvents. The solubility of dapsone in these systems was determined spectrophotometrically. This study also analyzed the intermolecular interactions, not only in the studied eutectic systems, but also in a wide range of systems found in the literature, determined using the COSMO-RS framework. The intermolecular interactions were quantified as affinity values, which correspond to the Gibbs free energy of pair formation of dapsone molecules with constituents of regular solvents and choline chloride-based deep eutectic solvents. The patterns of solute-solute, solute-solvent, and solvent-solvent interactions that affect solubility were recognized using Orange data mining software (version 3.36.2). Finally, the computed affinity values were used to provide useful descriptors for machine learning purposes. The impact of intermolecular interactions on dapsone solubility in neat solvents, binary organic solvent mixtures, and deep eutectic solvents was analyzed and highlighted, underscoring the crucial role of dapsone self-association and providing valuable insights into complex solubility phenomena. Also the importance of solvent-solvent diversity was highlighted as a factor determining dapsone solubility. The Non-Linear Support Vector Regression (NuSVR) model, in conjunction with unique molecular descriptors, revealed exceptional predictive accuracy. Overall, this study underscores the potency of computed molecular characteristics and machine learning models in unraveling complex molecular interactions, thereby advancing our understanding of solubility phenomena within the scientific community.
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Affiliation(s)
- Piotr Cysewski
- Department of Physical Chemistry, Pharmacy Faculty, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-096 Bydgoszcz, Poland; (T.J.); (M.P.)
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4
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Haridas A, Dawe RS, McGuire VA. Analysis of whole blood protoporphyrin and plasma porphyrin in patients on dapsone. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2024; 40:e12962. [PMID: 38489296 DOI: 10.1111/phpp.12962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/27/2024] [Accepted: 03/03/2024] [Indexed: 03/17/2024]
Affiliation(s)
- Amrutha Haridas
- Scottish Photobiology Service, Photobiology Unit, Department of Dermatology, Ninewells Hospital and Medical School, NHS Tayside and University of Dundee, Dundee, UK
| | - Robert S Dawe
- Scottish Photobiology Service, Photobiology Unit, Department of Dermatology, Ninewells Hospital and Medical School, NHS Tayside and University of Dundee, Dundee, UK
| | - Victoria A McGuire
- Scottish Photobiology Service, Photobiology Unit, Department of Dermatology, Ninewells Hospital and Medical School, NHS Tayside and University of Dundee, Dundee, UK
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5
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Olvera D, Hurley MY, Jeter M, Chow P, Hodges WT. Persistent Papules in Erythema Elevatum Diutinum Treated With Dapsone: Answer. Am J Dermatopathol 2024; 46:181-182. [PMID: 38354385 DOI: 10.1097/dad.0000000000002617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Affiliation(s)
- Diana Olvera
- New York Institute of Technology College of Osteopathic Medicine, Jonesboro, AR
| | - Maria Y Hurley
- Department of Dermatology, SSM Health/Saint Louis University School of Medicine, St. Louis, MO; and
| | | | - Peter Chow
- Department of Dermatology, SSM Health/Saint Louis University School of Medicine, St. Louis, MO; and
| | - Wesley T Hodges
- Department of Dermatology, SSM Health/Saint Louis University School of Medicine, St. Louis, MO; and
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6
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Kim YR, Kim JH, Kim SW, Lee JM, Bae JS. Linear IgA Bullous Dermatosis in Korea Using the Nationwide Health Insurance Database. J Clin Med 2024; 13:1159. [PMID: 38398470 PMCID: PMC10889246 DOI: 10.3390/jcm13041159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 02/06/2024] [Accepted: 02/17/2024] [Indexed: 02/25/2024] Open
Abstract
(1) Background: Linear immunoglobulin A bullous dermatosis (LABD) is a rare autoimmune, subepidermal blistering disease, characterized by linear IgA deposits along the epidermal basement membrane. LABD is idiopathic and is associated with medication and systemic autoimmune diseases. (2) Methods: We investigated the demographic characteristics, disease course, causative agents, and associated diseases in Korean patients with LABD. The Korean Health Insurance Review and Assessment Service database was used to obtain data. We identified 670 LABD cases between 2010 and 2022. (3) Results: The annual incidence of LABD was 1.3 per 100,000 persons, with a higher prevalence in individuals ≥60 years old. The patients were treated with dapsone for 30.7 ± 56.7 days, had 1.3 ± 0.7 hospital visits, and were hospitalized for 19.8 ± 19.7 days. Risk factors, including malignancy, commonly preceded LABD. Antibiotic use, specifically vancomycin and third-generation cephalosporins, was a risk factor. The mean age of LABD diagnosis was 55.9 ± 21.7 years. (4) Conclusion: This is the first published study to assess a nationwide cohort for LABD. The incidence of LABD was higher than that in other studies. Most case reports have linked LABD with the administration of specific antibiotics; however, this study shows there were more associations with other conditions.
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Affiliation(s)
- Yu Rim Kim
- Department of Medicine, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea
| | - Ji Hyeon Kim
- Department of Medicine, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea
| | - Sang Won Kim
- Medical Research Center, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea;
| | - Jae Min Lee
- Department of Pediatrics, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea
| | - Jacob S. Bae
- Department of Internal Medicine, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea
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7
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Al-Kuraishy HM, Al-Gareeb AI, Elekhnawy E, Alexiou A, Batiha GES. The Potential Effect of Dapsone on the Inflammatory Reactions in COVID-19: Staggering View. Comb Chem High Throughput Screen 2024; 27:674-678. [PMID: 36999691 DOI: 10.2174/1386207326666230331121735] [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: 07/24/2022] [Revised: 01/24/2023] [Accepted: 01/31/2023] [Indexed: 04/01/2023]
Abstract
Severe SARS-CoV-2 infection is linked with an overstated immune response with the succeeding release of pro-inflammatory cytokines and progression of the cytokine storm. In addition, severe SARS-CoV-2 infection is associated with the development of oxidative stress and coagulopathy. Dapsone (DPS) is a bacteriostatic antibiotic that has a potent anti-inflammatory effect. Thus, this mini-review aimed to elucidate the potential role of DPS in mitigating inflammatory disorders in COVID-19 patients. DPS inhibits neutrophil myeloperoxidase, inflammation, and neutrophil chemotaxis. Therefore, DPS could be effective against neutrophilia-induced complications in COVID-19. In addition, DPS could be effective in mitigating inflammatory and oxidative stress disorders by suppressing the expression of inflammatory signaling pathways and the generation of reactive oxygen species (ROS) correspondingly. In conclusion, DPS might be effective in the management of COVID-19 through the attenuation of inflammatory disorders. Therefore, preclinical and clinical studies are reasonable in this regard.
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Affiliation(s)
- Hayder M Al-Kuraishy
- Department of Clinical Pharmacology and Medicine, College of Medicine, AL-Mustansiriyia University, Baghdad, Iraq
| | - Ali I Al-Gareeb
- Department of Clinical Pharmacology and Medicine, College of Medicine, AL-Mustansiriyia University, Baghdad, Iraq
| | - Engy Elekhnawy
- Pharmaceutical Microbiology Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Athanasios Alexiou
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, Australia
- AFNP Med Austria, Wien, Austria
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt
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8
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Wang ZZ, Zeng R, Wu ZW, Wang C, Jiang HQ, Wang HS. Overview and Current Advances in Dapsone Hypersensitivity Syndrome. Curr Allergy Asthma Rep 2023; 23:635-645. [PMID: 37804376 DOI: 10.1007/s11882-023-01109-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2023] [Indexed: 10/09/2023]
Abstract
PURPOSE OF REVIEW As a sulfone antibacterial agent, dapsone has been widely used to treat leprosy. Moreover, dapsone is also used in many immune diseases such as herpetic dermatitis because of its anti-inflammatory and immunomodulatory effects. However, dapsone can cause several adverse effects, the most serious being dapsone hypersensitivity syndrome. Dapsone hypersensitivity syndrome is characterized by a triad of eruptions, fever, and organ involvement, which limits the application of dapsone to some extent. RECENT FINDINGS In this article, we review current research about the interaction model between HLA-B*13:01, dapsone, and specific TCR in dapsone-induced drug hypersensitivity. In addition to the proposed mechanisms, we also discussed clinical features, treatment progress, prevalence, and prevention of dapsone hypersensitivity syndrome. These studies reveal the pathogenesis, clinical features, and prevalence from the perspectives of genetic susceptibility and innate and adaptive immunity in dapsone hypersensitivity syndrome, thereby guiding clinicians on how to diagnose, prevent, and treat dapsone hypersensitivity syndrome.
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Affiliation(s)
- Zhen-Zhen Wang
- Hospital of Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, St. 12 Jiangwangmiao, Nanjing, Jiangsu, China
| | - Rui Zeng
- Hospital of Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, St. 12 Jiangwangmiao, Nanjing, Jiangsu, China
| | - Zi-Wei Wu
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Chen Wang
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hai-Qin Jiang
- Hospital of Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, St. 12 Jiangwangmiao, Nanjing, Jiangsu, China.
| | - Hong-Sheng Wang
- Hospital of Skin Diseases and Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, St. 12 Jiangwangmiao, Nanjing, Jiangsu, China.
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
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9
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Cysewski P, Przybyłek M, Jeliński T. Intermolecular Interactions as a Measure of Dapsone Solubility in Neat Solvents and Binary Solvent Mixtures. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6336. [PMID: 37763610 PMCID: PMC10532775 DOI: 10.3390/ma16186336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023]
Abstract
Dapsone is an effective antibacterial drug used to treat a variety of conditions. However, the aqueous solubility of this drug is limited, as is its permeability. This study expands the available solubility data pool for dapsone by measuring its solubility in several pure organic solvents: N-methyl-2-pyrrolidone (CAS: 872-50-4), dimethyl sulfoxide (CAS: 67-68-5), 4-formylmorpholine (CAS: 4394-85-8), tetraethylene pentamine (CAS: 112-57-2), and diethylene glycol bis(3-aminopropyl) ether (CAS: 4246-51-9). Furthermore, the study proposes the use of intermolecular interactions as molecular descriptors to predict the solubility of dapsone in neat solvents and binary mixtures using machine learning models. An ensemble of regressors was used, including support vector machines, random forests, gradient boosting, and neural networks. Affinities of dapsone to solvent molecules were calculated using COSMO-RS and used as input for model training. Due to the polymorphic nature of dapsone, fusion data are not available, which prohibits the direct use of COSMO-RS for solubility calculations. Therefore, a consonance solvent approach was tested, which allows an indirect estimation of the fusion properties. Unfortunately, the resulting accuracy is unsatisfactory. In contrast, the developed regressors showed high predictive potential. This work documents that intermolecular interactions characterized by solute-solvent contacts can be considered valuable molecular descriptors for solubility modeling and that the wealth of encoded information is sufficient for solubility predictions for new systems, including those for which experimental measurements of thermodynamic properties are unavailable.
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Affiliation(s)
- Piotr Cysewski
- Department of Physical Chemistry, Pharmacy Faculty, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-096 Bydgoszcz, Poland; (M.P.); (T.J.)
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10
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Yamamoto T, Yamasaki K, Yamanaka K, Komine M, Kawakami T, Yamamoto O, Kanekura T, Higuchi T, Takahashi T, Matsushima Y, Kikuchi N. Clinical guidance of pyoderma gangrenosum 2022. J Dermatol 2023; 50:e253-e275. [PMID: 37311717 DOI: 10.1111/1346-8138.16845] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/26/2023] [Accepted: 05/01/2023] [Indexed: 06/15/2023]
Abstract
Pyoderma gangrenosum (PG) is a rare, neutrophilic skin disease. For the purpose of accurate diagnosis and proper treatment of PG, the Japanese clinical practice guidance for PG developed by the Japanese Dermatological Association was published in 2022. In this guidance, clinical aspects, pathogenesis, current therapies, and clinical questions on PG are described from the viewpoints of current knowledge and evidence-based medicine. Here, the English version of the Japanese clinical practice guidelines for PG is presented and is intended to be widely referred to in the clinical examination and treatment of PG.
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11
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Yang F, Zhou P, Huang Z, Liao J, Huang G, Liang T, Zhang Z. Ruthenium(II)-Catalyzed Remote C-H Sulfonylation of 2-Pyridones. Org Lett 2023; 25:5779-5783. [PMID: 37498216 DOI: 10.1021/acs.orglett.3c02004] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Herein, a ruthenium-mediated remote C-H mono- and disulfonylation of 2-pyridones with arylsulfonyl chlorides is developed. The catalytic system consisting of a [Ru(p-cymene)Cl2]2 catalyst and KOAc additive allows 2-pyridones to undergo C3,C5-disulfonylation in 1,4-dioxane, and C5-sulfonylation when the C3-position of 2-pyridones is blocked. The successful transformation of the products and late-stage modification of estrone further highlighted the potential utility and significance of this synthetic protocol. Preliminary mechanistic studies indicated that the remote regioselectivity might be dictated via chelation-assisted ruthenation.
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Affiliation(s)
- Fengqi Yang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Pengfei Zhou
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Zeng Huang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Junqiu Liao
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Guan Huang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Taoyuan Liang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
| | - Zhuan Zhang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Guangxi Colleges and Universities Key Laboratory of Applied Chemistry Technology and Resource Development, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China
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12
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Beng TK, Eichwald J, Fessenden J, Quigley K, Sharaf S, Jeon N, Do M. Regiodivergent synthesis of sulfone-tethered lactam-lactones bearing four contiguous stereocenters. RSC Adv 2023; 13:21250-21258. [PMID: 37456540 PMCID: PMC10340014 DOI: 10.1039/d3ra03800a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023] Open
Abstract
Sulfone-tethered lactones/amides/amines display a diverse spectrum of biological activities, including anti-psychotic and anti-hypertensive. Sulfones are also widely present in functional materials and fragrances. We therefore reasoned that a regiodivergent and stereocontrolled strategy that merges the sulfone, lactone, and lactam motifs would likely lead to the discovery of new pharmacophores and functional materials. Here, we report mild conditions for the sulfonyllactonization of γ-lactam-tethered 5-aryl-4(E)-pentenoic acids. The annulation is highly modular, chemoselective, and diastereoselective. With respect to regioselectivity, trisubstituted alkenoic acids display a preference for 5-exo-trig cyclization whereas disubstituted alkenoic acids undergo exclusive 6-endo-trig cyclization. The lactam-fused sulfonyllactones bear angular quaternary as well as four contiguous stereocenters. The products are post-modifiable, especially through a newly developed Co-catalyzed reductive cross-coupling protocol.
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Affiliation(s)
- Timothy K Beng
- Department of Chemistry, Central Washington University Ellensburg WA 98926 USA
| | - Jane Eichwald
- Department of Chemistry, Central Washington University Ellensburg WA 98926 USA
| | - Jolyn Fessenden
- Department of Chemistry, Central Washington University Ellensburg WA 98926 USA
| | - Kaiden Quigley
- Department of Chemistry, Central Washington University Ellensburg WA 98926 USA
| | - Sapna Sharaf
- Department of Chemistry, Central Washington University Ellensburg WA 98926 USA
| | - Nanju Jeon
- Department of Chemistry, Central Washington University Ellensburg WA 98926 USA
| | - Minh Do
- Department of Chemistry, Central Washington University Ellensburg WA 98926 USA
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13
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Abdelraof M, Fikry M, Hashem AH, El-Naggar ME, Rashdan HRM. Insight into novel anti-mucormycosis therapies: investigation of new anti-mucormycosis laser-induced photodynamic therapy based on a sulphone bis-compound loaded silica nanoemulsion. RSC Adv 2023; 13:20684-20697. [PMID: 37435382 PMCID: PMC10331924 DOI: 10.1039/d3ra02775a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 06/26/2023] [Indexed: 07/13/2023] Open
Abstract
For drug delivery applications, silica nanoemulsion encapsulated with organic compounds are becoming increasingly more desirable. Therefore, the emphasis of this research was on the synthesis of a new potent antifungal drug-like candidate (1,1'-((sulfonylbis(4,1-phenylene)bis(5-methyl-1H-1,2,3-triazole-1,4-diyl))bis(3-(dimethylamino)prop-2-en-1-one), SBDMP), the chemical structure of which was confirmed on the basis of its spectral and microanalytical data. Then, silica nanoemulsion loaded with SBDMP was prepared using Pluronic F-68 as a potent surfactant. The particle shape, hydrodynamic size, and zeta potential of the produced silica nanoemulsion (with and without drug loading) were assessed. The antitumoral activity of the synthesized molecules showed the superiority of SBDMP and silica nanoemulsion with and without SBDMP loading against Rhizopus microsporous and Syncephalastrum racemosum. Subsequently, the laser-induced photodynamic inactivation (LIPDI) of Mucorales strains was determined using the tested samples. The optical properties of the samples were investigated using UV-vis optical absorption and the photoluminescence. The photosensitivity of the selected samples appeared to enhance the eradication of the tested pathogenic strains when exposed to a red (640 nm) laser light. The optical property results verified that the SBDMP-loaded silica nanoemulsion has a high depth of penetration into biological tissues due to a two-absorption photon (TAP) mechanism. Interestingly, the photosensitizing of the nanoemulsion loaded with a newly synthesized drug-like candidate, SBDMP, opens up a new route to apply new organic compounds as photosensitizers under laser-induced photodynamic therapy (LIPDT).
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Affiliation(s)
- Mohamed Abdelraof
- Microbial Chemistry Department, Biotechnology Research Institute, National Research Centre Dokki Cairo 12622 Egypt
| | - Mohamed Fikry
- Ultrafast Picosecond Laser Lab, Physics Department, Faculty of Science, Cairo University Giza 12613 Egypt
- Egypt Nanotechnology Center (EGNC), Faculty of Nanotechnology for Postgraduate Studies, Cairo University El-Sheikh Zayed 12588 Egypt
| | - Amr H Hashem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University Cairo 11884 Egypt
| | - Mehrez E El-Naggar
- Institute of Textile Research and Technology, National Research Centre 33 El Bohouth St, Dokki Giza 12622 Egypt
| | - Huda R M Rashdan
- Chemistry of Natural and Microbial Products Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre 33 El Buhouth St, Dokki 12622 Giza Egypt
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14
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Shigehara Y, Kato M. Dapsone-induced photosensitivity: A case report and review of literature. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2023; 39:407-409. [PMID: 36794920 DOI: 10.1111/phpp.12866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 02/02/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023]
Affiliation(s)
- Yohya Shigehara
- Department of Dermatology, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - Miyuki Kato
- Department of Dermatology, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
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15
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Vogt LI, Cotelesage JJH, Dolgova NV, Boyes C, Qureshi M, Sokaras D, Sharifi S, George SJ, Pickering IJ, George GN. Sulfur X-ray Absorption and Emission Spectroscopy of Organic Sulfones. J Phys Chem A 2023; 127:3692-3704. [PMID: 36912654 DOI: 10.1021/acs.jpca.2c08647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
The sulfones are a widespread group of organo-sulfur compounds, which contain the sulfonyl SO2 group attached to two carbons and have a formal sulfur oxidation state of +2. We have examined the sulfur K near-edge X-ray absorption spectroscopy (XAS) of a range of different sulfones and find substantial spectroscopic variability depending upon the nature of the coordination to the sulfonyl group. We have also examined the sulfur Kβ X-ray emission spectroscopy (XES) of selected representative sulfones. Density functional theory simulations show satisfactory reproduction of both absorption and emission spectra while enabling assignment of the various transitions comprising the spectra. The correspondence between observed and simulated spectra shows promise for ab initio prediction of sulfur X-ray absorption and emission spectra of sulfones of any substituent. The absorption spectra and, to a lesser extent, the emission spectra are sensitive to the nature of the organic groups bound to the sulfonyl (SO2) moiety, clearly showing the potential of X-ray spectroscopy as an in situ probe of sulfone chemistry.
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Affiliation(s)
- Linda I Vogt
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Julien J H Cotelesage
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Natalia V Dolgova
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Curtis Boyes
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
| | - Muhammad Qureshi
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, California 94025, United States
| | - Dimosthenis Sokaras
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University, Menlo Park, California 94025, United States
| | - Samin Sharifi
- Chevron Energy Technology Company, Richmond, California 94802, United States
| | - Simon J George
- Simon Scientific, P.O. Box 71024, Richmond, California 94807, United States
| | - Ingrid J Pickering
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada.,Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5C9, Canada
| | - Graham N George
- Molecular and Environmental Sciences Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada.,Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5C9, Canada
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16
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Hahn V. Potential of the enzyme laccase for the synthesis and derivatization of antimicrobial compounds. World J Microbiol Biotechnol 2023; 39:107. [PMID: 36854853 PMCID: PMC9974771 DOI: 10.1007/s11274-023-03539-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 02/01/2023] [Indexed: 03/02/2023]
Abstract
Laccases [E.C. 1.10.3.2, benzenediol:dioxygen oxidoreductase] can oxidize phenolic substances, e.g. di- and polyphenols, hydroxylated biaryls, aminophenols or aryldiamines. This large substrate spectrum is the basis for various reaction possibilities, which include depolymerization and polymerization reactions, but also the coupling of different substance classes. To catalyze these reactions, laccases demand only atmospheric oxygen and no depletive cofactors. The utilization of mild and environmentally friendly reaction conditions such as room temperature, atmospheric pressure, and the avoidance of organic solvents makes the laccase-mediated reaction a valuable tool in green chemistry for the synthesis of biologically active compounds such as antimicrobial substances. In particular, the production of novel antibiotics becomes vital due to the evolution of antibiotic resistances amongst bacteria and fungi. Therefore, laccase-mediated homo- and heteromolecular coupling reactions result in derivatized or newly synthesized antibiotics. The coupling or derivatization of biologically active compounds or its basic structures may allow the development of novel pharmaceuticals, as well as the improvement of efficacy or tolerability of an already applied drug. Furthermore, by the laccase-mediated coupling of two different active substances a synergistic effect may be possible. However, the coupling of compounds that have no described efficacy can lead to biologically active substances by means of laccase. The review summarizes laccase-mediated reactions for the synthesis of antimicrobial compounds valuable for medical purposes. In particular, reactions with two different reaction partners were shown in detail. In addition, studies with in vitro and in vivo experimental data for the confirmation of the antibacterial and/or antifungal efficacy of the products, synthesized with laccase, were of special interest. Analyses of the structure-activity relationship confirm the great potential of the novel compounds. These substances may represent not only a value for pharmaceutical and chemical industry, but also for other industries due to a possible functionalization of surfaces such as wood or textiles.
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Affiliation(s)
- Veronika Hahn
- Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany. .,Institute for Microbiology, University of Greifswald, Felix-Hausdorff-Str. 8, 17489, Greifswald, Germany.
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17
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Yao W, Lv K, Xie Z, Qiu H, Ma M. Catalyst-Free Electrochemical Sulfonylation of Organoboronic Acids. J Org Chem 2023; 88:2296-2305. [PMID: 36727513 DOI: 10.1021/acs.joc.2c02690] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A simple and efficient electrochemical sulfonylation of organoboronic acids with sodium arylsulfinate salts has been reported for the first time. A variety of aryl, heteroaryl, and alkenylsulfones were obtained in good to excellent yields via a simple electrochemical sulfonylation of various arylboronic acids, heterocyclic boronic acids, or alkenylboronic acids with sodium arylsulfinate at room temperature in 5 h under the catalyst-free and additive-free conditions. A plausible mechanism has been proposed based on various radical-trapping and CV control experiments.
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Affiliation(s)
- Weiwei Yao
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Kang Lv
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Zixi Xie
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hui Qiu
- Department of Chemistry and Material Science, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Mengtao Ma
- Department of Chemistry and Material Science, College of Science, Nanjing Forestry University, Nanjing 210037, China
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18
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Tešanović Perković D, Bukvić Mokos Z, Marinović B. Epidermolysis Bullosa Acquisita-Current and Emerging Treatments. J Clin Med 2023; 12:jcm12031139. [PMID: 36769788 PMCID: PMC9917799 DOI: 10.3390/jcm12031139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/10/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
Epidermolysis bullosa acquisita (EBA) is a rare chronic autoimmune subepidermal blistering disease of the skin and mucous membranes, usually beginning in adulthood. EBA is induced by autoantibodies to type VII collagen, a major component of anchoring fibrils in the dermal-epidermal junction (DEJ). The binding of autoantibodies to type-VII collagen subsequently leads to the detachment of the epidermis and the formation of mucocutaneous blisters. EBA has two major clinical subtypes: the mechanobullous and inflammatory variants. The classic mechanobullous variant presentation consists of skin fragility, bullae with minimal clinical or histological inflammation, erosions in acral distribution that heal with scarring, and milia formation. The inflammatory variant is challenging to differentiate from other autoimmune bullous diseases, most commonly bullous pemphigoid (BP) but also mucous membrane pemphigoid (MMP), Brunsting-Perry pemphigoid, and linear IgA dermatosis. Due to its recalcitrance conventional treatment of epidermolysis bullosa acquisita is shown to be demanding. Here we discuss novel therapeutic strategies that have emerged and which could potentially improve the quality of life in patients with EBA.
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Affiliation(s)
| | - Zrinka Bukvić Mokos
- Department of Dermatology and Venereology, School of Medicine, University Hospital Centre Zagreb, University of Zagreb, Kišpatićeva 12, 10000 Zagreb, Croatia
| | - Branka Marinović
- Department of Dermatology and Venereology, School of Medicine, University Hospital Centre Zagreb, University of Zagreb, Kišpatićeva 12, 10000 Zagreb, Croatia
- Correspondence:
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19
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da Silva Santos J, da Costa Alves F, José Dos Santos Júnior E, Soares Sobrinho JL, de La Roca Soares MF. Evolution of pediatric pharmaceutical forms for treatment of Hansen's disease (leprosy). Expert Opin Ther Pat 2023; 33:1-15. [PMID: 36755421 DOI: 10.1080/13543776.2023.2178301] [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: 02/10/2023]
Abstract
INTRODUCTION Leprosy is a neglected, infectious, granulomatous and chronic disease caused by the pathological agent Mycobacterium leprae. The course of the disease is more aggressive in patients under 15 years of age, but the current treatment offered worldwide consists of solid forms, by the combination of antibiotics such as rifampicin, clofazimine and dapsone. This represents results in lack of adherence in pediatric patients and drug therapy failure, although numerous formulations and technologies have already been developed. AREA COVERED This study aims to analyze the technological evolution of the pharmaceutical treatment of leprosy, aimed at children. A review of patents around the world was conducted to look for technical and clinical aspects of formulations and devices. EXPERT OPINION Innovative formulations for pediatric patients were classified according to the routes of administration as oral, inhalable, injectable and transdermal. The formulations were organized as alternatives for pediatric therapy, taking into account the physicochemical aspects of drugs and the physiological aspects of pediatric patients. Among the difficulties for the patented formulations to reach the market, of special note is the low stability of the physicochemical characteristics of the drugs. Optimization of formulations would favor the pediatric treatment of leprosy, aiming at therapeutic success.
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Affiliation(s)
- Jocimar da Silva Santos
- Núcleo de Controle de Qualidade de Medicamentos e Correlatos, Department of Pharmacy, Universidade Federal de Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade Universitária, Recife PE, Brasil
| | - Franciely da Costa Alves
- Núcleo de Controle de Qualidade de Medicamentos e Correlatos, Department of Pharmacy, Universidade Federal de Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade Universitária, Recife PE, Brasil
| | - Efraim José Dos Santos Júnior
- Núcleo de Controle de Qualidade de Medicamentos e Correlatos, Department of Pharmacy, Universidade Federal de Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade Universitária, Recife PE, Brasil
| | - José Lamartine Soares Sobrinho
- Núcleo de Controle de Qualidade de Medicamentos e Correlatos, Department of Pharmacy, Universidade Federal de Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade Universitária, Recife PE, Brasil
| | - Mônica Felts de La Roca Soares
- Núcleo de Controle de Qualidade de Medicamentos e Correlatos, Department of Pharmacy, Universidade Federal de Pernambuco, Av. Prof. Arthur de Sá, S/N, Cidade Universitária, Recife PE, Brasil
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20
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Khalilzadeh M, Shayan M, Jourian S, Rahimi M, Sheibani M, Dehpour AR. A comprehensive insight into the anti-inflammatory properties of dapsone. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2022; 395:1509-1523. [PMID: 36125533 DOI: 10.1007/s00210-022-02297-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 09/13/2022] [Indexed: 02/01/2023]
Abstract
The 4,4'-diaminodiphenyl sulfone (DDS), also known as dapsone, is traditionally used as a potent anti-bacterial agent in clinical management of leprosy. For decades, dapsone has been among the first-line medications used in multidrug treatment of leprosy recommended by the World Health Organization (WHO). Shortly after dapsone's discovery as an antibiotic in 1937, the dual function of dapsone (anti-microbial and anti-inflammatory) was elucidated. Dapsone exerts its anti-bacterial effects by inhibiting dihydrofolic acid synthesis, leading to inhibition of bacterial growth, while its anti-inflammatory properties are triggered by inhibiting reactive oxygen species (ROS) production, reducing the effect of eosinophil peroxidase on mast cells and downregulating neutrophil-mediated inflammatory responses. Among the leading mechanisms associated with its anti-microbial/anti-protozoal effects, dapsone clearly has multiple antioxidant, anti-inflammatory, and anti-apoptotic functions. In this regard, it has been described in treating a wide variety of inflammatory and infectious skin conditions. Previous reports have explored different molecular targets for dapsone and provided insight into the anti-inflammatory mechanism of dapsone. This article reviews several basic, experimental, and clinical approaches on anti-inflammatory effect of dapsone.
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Affiliation(s)
- Mina Khalilzadeh
- Experimental Medicine Research Centre, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, 13145-784, Iran
| | - Maryam Shayan
- Experimental Medicine Research Centre, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, 13145-784, Iran
| | - Sina Jourian
- Experimental Medicine Research Centre, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, 13145-784, Iran
| | - Mohammad Rahimi
- Experimental Medicine Research Centre, Tehran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, 13145-784, Iran
| | - Mohammad Sheibani
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, 14496-14525, Iran.
- Razi Drug Research Centre, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Ahmad Reza Dehpour
- Experimental Medicine Research Centre, Tehran University of Medical Sciences, Tehran, Iran.
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, 13145-784, Iran.
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21
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Zhang Z, Li Q, Shen X, Liao L, Wang X, Song M, Zheng X, Zhu Y, Yang Y. The medication for pneumocystis pneumonia with glucose-6-phosphate dehydrogenase deficiency patients. Front Pharmacol 2022; 13:957376. [PMID: 36160421 PMCID: PMC9490050 DOI: 10.3389/fphar.2022.957376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/05/2022] [Indexed: 11/13/2022] Open
Abstract
Pneumocystis pneumonia (PCP) is an opportunity acquired infection, which is usually easy to occur in patients with AIDS, organ transplantation, and immunosuppressive drugs. The prevention and treatment must be necessary for PCP patients with immunocompromise. And the oxidants are currently a typical regimen, including sulfanilamide, dapsone, primaquine, etc. Glucose-6-phosphate dehydrogenase (G6PD) deficiency is an X-linked gene-disease that affects about 400 million people worldwide. The lack of G6PD in this population results in a decrease in intracellular glutathione synthesis and a weakening of the detoxification ability of the oxidants. As a result, oxidants can directly damage haemoglobin in red blood cells, inducing methemoglobin and hemolysis. When patients with G6PD deficiency have low immunity, they are prone to PCP infection, so choosing drugs that do not induce hemolysis is essential. There are no clear guidelines to recommend the drug choice of this kind of population at home and abroad. This paper aims to demonstrate the drug choice for PCP patients with G6PD deficiency through theoretical research combined with clinical cases.
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Affiliation(s)
- Ziyu Zhang
- Department of Pharmacy, The First People’s Hospital of Ziyang, Ziyang, China
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Qinhui Li
- Department of Medical, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiaoyan Shen
- Department of Pharmacy, Chengdu Qingbaijiang District People’s Hospital, Chengdu, China
| | - Lankai Liao
- Intensive Care Unit, The Third Hospital of Mianyang, Mianyang, China
| | - Xia Wang
- Department of Pharmacy, The First People’s Hospital of Ziyang, Ziyang, China
| | - Min Song
- Department of Pharmacy, The First People’s Hospital of Ziyang, Ziyang, China
| | - Xi Zheng
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yulian Zhu
- Department of Pharmacy, Ziyang People’s Hospital, Ziyang, China
- *Correspondence: Yulian Zhu, ; Yong Yang,
| | - Yong Yang
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
- *Correspondence: Yulian Zhu, ; Yong Yang,
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22
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Cantrell C, Costers V, Wilson CC, Dudek CJ, Arnold JK. Refractory Methemoglobinemia Secondary to Topical Dapsone With Subsequent Autoimmune Hemolytic Anemia. Cureus 2022; 14:e28811. [PMID: 36225525 PMCID: PMC9534637 DOI: 10.7759/cureus.28811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/05/2022] [Indexed: 11/05/2022] Open
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23
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Yoshida M, Nambu R, Yasuda R, Sakaguchi H, Hara T, Iwama I, Mizuochi T. Dapsone for Refractory Gastrointestinal Symptoms in Children With Immunoglobulin A Vasculitis. Pediatrics 2022; 150:188779. [PMID: 35975615 DOI: 10.1542/peds.2021-055884] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/21/2022] [Indexed: 11/24/2022] Open
Abstract
Immunoglobulin A vasculitis (IgAV) is a systemic small-vessel vasculitis. Although corticosteroids (CS) are the primary treatment for gastrointestinal manifestations associated with IgAV, some patients develop refractory or recurrent symptoms such as vomiting and abdominal pain despite CS treatment. Dapsone, a synthetic sulfone antimicrobial, has been used to treat cutaneous purpura in IgAV, but few authors have reported its use for refractory gastrointestinal symptoms. In this retrospective observational study, we describe results in 7 children with IgAV who were treated with dapsone for abdominal pain resistant to CS. Dapsone rapidly relieved abdominal pain in all 7 patients, who then were tapered off CS without relapse. Side effects of mild methemoglobinemia and hemolysis appeared to be manageable with planned monitoring and dose adjustment; a single patient who discontinued dapsone had fatigue and hypoxia associated with methemoglobinemia. No side effects were life-threatening. Dapsone may be considered as a therapeutic option for gastrointestinal symptoms refractory to CS in children with IgAV.
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Affiliation(s)
- Masashi Yoshida
- Division of Gastroenterology and Hepatology, Saitama Children's Medical Center, Saitama, Japan.,These authors contributed equally to this work
| | - Ryusuke Nambu
- Division of Gastroenterology and Hepatology, Saitama Children's Medical Center, Saitama, Japan.,These authors contributed equally to this work
| | - Ryosuke Yasuda
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan
| | - Hirotaka Sakaguchi
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan
| | - Tomoko Hara
- Division of Gastroenterology and Hepatology, Saitama Children's Medical Center, Saitama, Japan
| | - Itaru Iwama
- Division of Gastroenterology and Hepatology, Saitama Children's Medical Center, Saitama, Japan
| | - Tatsuki Mizuochi
- Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Japan.,These authors contributed equally to this work
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Radulov PS, Mozzhegorov AV, Mulina OM, Yaremenko IA, Ilovaisky AI, Terent’ev AO. Synthesis of β-triazolyl sulfones via the reaction of vinyl sulfones with 1,2,4-triazoles under basic conditions. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3562-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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25
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Bakeeva RF, Garmonov SY, Vakhitova OE, Sopin VF. Determination of Amine-Containing Drugs in Micellar Matrices by Spectrophotometry Using Box–Behnken Plans. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s106193482206003x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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da Costa Bernardo Port B, Schneider-Rauber G, Fretes Argenta D, Arhangelskis M, de Campos CEM, João Bortoluzzi A, Caon T. Effect of Vehicle Composition on the Preparation of Different Types of Dapsone Crystals for Topical Drug Delivery. Mol Pharm 2022; 19:2164-2174. [PMID: 35708215 DOI: 10.1021/acs.molpharmaceut.2c00031] [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: 11/28/2022]
Abstract
Topical formulations composed of API-pure crystals have been increasingly studied, especially in regards to the impact of particle size in penetration efficiency. Less attention, however, has been devoted to the solid-state properties of drugs delivered to the skin. In this study, we address the effect of formulation composition on the crystal form existing in topical products. Dapsone (DAP) gel formulations were prepared by mixing an organic solution containing DAP with an aqueous solution containing polymers and preservatives. The organic solvent was chosen as ethoxydiglycol (DEGEE), polyethylene glycol (PEG), or 1-methyl-2-pirrolidone (MPR) to assess the impact of composition on DAP crystal form. Such solvent variations resulted in different particulate matter. In terms of crystalline nature, the presence of DEGEE in formulations induced the crystallization of DAP hydrate, while PEG cocrystal and a mixture of hydrate and MPR solvate crystallized from the same amounts of PEG and MPR, respectively. Microscopic analysis of the gels showed heterogeneous particles with different characteristics. The behavior of gels after application to the skin was also tested. Interestingly, the different formulations seemed to accumulate in different regions of the skin. This could be the result of the effect of vehicle composition/excipients on the characteristics of the skin, such as hydration. The site-specific accumulation, however, was more pronounced in crystal-loaded gels as opposed to blank formulations. These results indicate that future studies should consider the effect of formulation composition on the API crystal form landscape as part of the strategies used to successfully target drug delivery to the skin.
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Affiliation(s)
| | | | | | - Mihails Arhangelskis
- Faculty of Chemistry, University of Warsaw, 1 Pasteura Street, Warsaw 02-093, Poland
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27
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Zhang Z, Song Q, Feng C, Wang Z, Zhao W, Ning Y, Wu Y. The Sulfinylsulfonation of alkynes for β-Sulfinyl alkenylsulfone. Chem Asian J 2022; 17:e202200299. [PMID: 35485489 DOI: 10.1002/asia.202200299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/18/2022] [Indexed: 11/10/2022]
Abstract
Here we report the first example of sulfinylsulfonation of alkynes to afford β-sulfinyl alkenylsulfone products with a broad substrate scope, excellent functional group compatibility, and high yield. Moreover, sulfinylsulfonation reaction of enyne can also be realized for constructing functionalized carbo- and heterocycles through a radical cascade cyclization process.
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Affiliation(s)
- Zhansong Zhang
- Northeast Normal University, Department of Chemistry, CHINA
| | - Qingmin Song
- Northeast Normal University, Department of Chemistry, CHINA
| | - Chengjie Feng
- Northeast Agricultural University, Department of Chemicstry, Collge of Art and Science, CHINA
| | - Zikun Wang
- Northeast Normal University, Department of Chemistry, CHINA
| | - Wanjun Zhao
- Northeast Normal University, Department of Chemistry, CHINA
| | - Yongquan Ning
- Northeast Normal University, Department of Chemistry, Renmin Road, Changchun, JL, 431, Changchun, CHINA
| | - Yong Wu
- Northeast Normal University, Department of Chemistry, CHINA
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28
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Madanipour MR, Fatehi-Zardalou M, Rahimi N, Hemmati S, Alaeddini M, Etemad-Moghadam S, Shayan M, Dabiri S, Dehpour AR. The anti-inflammatory effect of dapsone on ovalbumin-induced allergic rhinitis in balb/c mice. Life Sci 2022; 297:120449. [PMID: 35245518 DOI: 10.1016/j.lfs.2022.120449] [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: 11/22/2021] [Revised: 02/09/2022] [Accepted: 02/26/2022] [Indexed: 10/19/2022]
Abstract
AIMS Allergic rhinitis (AR), a major chronic inflammatory disease of the respiratory system, is a public health issue because of its substantial negative impact on quality of life and work efficiency alongside its high prevalence and costs. Dapsone is a sulfone chemical with reported anti-inflammatory and antibacterial properties. Accordingly, we investigated the anti-inflammatory impact of dapsone on ovalbumin-induced allergic rhinitis in balb/c mice. MAIN METHODS Intraperitoneal ovalbumin and hydroxide aluminum injection followed by intranasal ovalbumin administration sensitized female Balb/c mice. Mice received intraperitoneal dapsone either acute (5, 10, 20 mg/kg) 30 min before the last ovalbumin challenge, or chronic (20 mg/kg) on days 21 to 35. KEY FINDINGS Both acute and chronic intraperitoneal usage of dapsone showed a considerable decrease in the nasal scratching behavior, the number of sneezing, serum IL-4 and IgE levels of ovalbumin-induced AR in balb/c mice, but there was a significant increase in serum IFNγ level. Histopathological analysis demonstrated a significant reduction of eosinophil numbers, following dapsone injection. Goblet cell hyperplasia and respiratory epithelial-thickness decreased significantly in the acute and chronic 20 mg/kg dapsone groups compared to the ovalbumin-induced controls. SIGNIFICANCE This study shows that there is an association between acute and chronic dapsone treatment and some anti-allergic effects through an inflammation cascade.
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Affiliation(s)
- Mohammad Reza Madanipour
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mortaza Fatehi-Zardalou
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Nastaran Rahimi
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sara Hemmati
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mojgan Alaeddini
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahroo Etemad-Moghadam
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Shayan
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sasan Dabiri
- Department of Otorhinolaryngology-Head and Neck Surgery, Otorhinolaryngology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Reza Dehpour
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmacology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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Bertini S, Henryon D, Edmunds AJF, Albrecht M. Pyridylidene Amide Ru Complex for Selective Oxidation in Organic Synthesis. Org Lett 2022; 24:1378-1382. [PMID: 35129978 DOI: 10.1021/acs.orglett.2c00177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The ruthenium(II) bis(PYA) complex 1 (PYA = p-pyridylidene amide) is a powerful catalyst for the oxidation of sulfides to sulfones, of alkenes to carbonyl compounds, and of terminal alkynes to carboxylic acids by using NaIO4 as the terminal oxidant. The catalytic system shows a broad functional group tolerance and rate differences between alkyne and sulfide oxidation that are sufficiently large to effectively achieve selective sulfide oxidation with exquisite selectivity.
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Affiliation(s)
- Simone Bertini
- Department für Chemie, Biochemie & Pharmazie, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Dorothée Henryon
- Syngenta Crop Protection Muenchwilen AG, Schaffhauseserstrasse, CH-4322 Stein, Switzerland
| | - Andrew J F Edmunds
- Syngenta Crop Protection Muenchwilen AG, Schaffhauseserstrasse, CH-4322 Stein, Switzerland
| | - Martin Albrecht
- Department für Chemie, Biochemie & Pharmazie, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
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30
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Das K, Daveluy S, Kroumpouzos G, Agarwal K, Podder I, Farnbach K, Ortega-Loayza AG, Szepietowski JC, Grabbe S, Goldust M. Efficacy and Toxicity of Classical Immunosuppressants, Retinoids and Biologics in Hidradenitis Suppurativa. J Clin Med 2022; 11:jcm11030670. [PMID: 35160122 PMCID: PMC8836901 DOI: 10.3390/jcm11030670] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/09/2022] [Accepted: 01/18/2022] [Indexed: 12/05/2022] Open
Abstract
Hidradenitis suppurativa (HS) is a chronic inflammatory disorder of the apocrine glands characterized by recurrent episodes. Although several therapies exist, none is completely curative. Several immunosuppressives have been studied with encouraging results and targeted approaches. In this review, we highlight the various immunosuppressives used in this condition along with their salient features to enable physicians to choose the correct therapy for their patients. The search of the peer-reviewed literature included clinical trials, scientific reviews, case series, case reports, and guidelines. The literature was identified from electronic databases (MEDLINE and PubMed) through November 2021; additional articles were included from the references of the identified articles.
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Affiliation(s)
- Kinnor Das
- Department of Dermatology Venereology and Leprosy, Silchar Medical College, Silchar 788014, India;
| | - Steven Daveluy
- Department of Dermatology, Wayne State University, Detroit, MI 48202, USA;
| | - George Kroumpouzos
- Department of Dermatology, Alpert Medical School of Brown University, Providence, RI 02903, USA;
- Department of Dermatology, Medical School of Jundiaí, São Paulo 13202-550, Brazil
- GK Dermatology, P.C, Weymouth, MA 02190, USA
| | - Komal Agarwal
- Department of Dermatology, CNMC, Kolkata 700014, India;
| | - Indrashis Podder
- Department of Dermatology, Venereology and Leprosy, College of Medicine and Sagore Dutta Hospital, Kolkata 700058, India;
| | - Katherine Farnbach
- Department of Dermatology, Oregon Health and Science University, Portland, OR 97239, USA; (K.F.); (A.G.O.-L.)
| | - Alex G. Ortega-Loayza
- Department of Dermatology, Oregon Health and Science University, Portland, OR 97239, USA; (K.F.); (A.G.O.-L.)
| | - Jacek C. Szepietowski
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, 50-367 Wroclaw, Poland
- Correspondence: (J.C.S.); (M.G.)
| | - Stephan Grabbe
- Department of Dermatology, University Medical Center Mainz, 55131 Mainz, Germany;
| | - Mohamad Goldust
- Department of Dermatology, University Medical Center Mainz, 55131 Mainz, Germany;
- Correspondence: (J.C.S.); (M.G.)
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Yang J, Li G, Yu K, Xu B, Chen Q. Electrochemical Sulfonylation-Induced Lactonization of Alkenes: Synthesis of Sulfonyl Phthalides. J Org Chem 2022; 87:1208-1217. [PMID: 34989241 DOI: 10.1021/acs.joc.1c02557] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
An electrochemical cascade sulfonylation and lactonization process of alkenes and a most widely used arylsulfonylation reagent─sulfonyl hydrazines─was developed for the first time. This electrochemical sulfonyl lactonization avoided the use of toxic metal catalysts or stoichiometric oxidants and was carried out under mild conditions. The target product γ-sulfonylated phthalides with broad and excellent substrate tolerance were achieved.
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Affiliation(s)
- Jiajun Yang
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Guodong Li
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Ke Yu
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Bo Xu
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Qianjin Chen
- Key Lab of Science and Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
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Rabindranathnambi A, Jeevankumar B. Dapsone in Hidradenitis Suppurativa: A Systematic Review. Dermatol Ther (Heidelb) 2022; 12:285-293. [PMID: 34997914 PMCID: PMC8850499 DOI: 10.1007/s13555-021-00674-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION Hidradenitis suppurativa (HS) is a chronic, inflammatory, recurrent disease, usually presenting after puberty with inflammatory lesions that mainly affect the apocrine gland-bearing areas of the body, most commonly the axillary, inguinal and anogenital regions. The treatment of HS is associated with certain challenges due to intrinsic resistance to various treatments and the presence of comorbidities and complications. The antibiotic dapsone is an established treatment for HS, but the current evidence base is limited. The aim of this review is to systematically review the literature on the efficacy of dapsone in the treatment of HS. METHODS The Cochrane, PubMed and CINAHL databases were searched for relevant articles to be included in the systematic review. RESULTS A total of seven studies, with a cumulative patient population of 135 patients, were included. Of these 135 patients, 62.2% demonstrated various degrees of improvement following treatment. However, as only three of the seven studies used dapsone monotherapy it is difficult to assess the effectiveness of dapsone because the benefits observed may be due to concurrently administered treatment. CONCLUSION Overall, the quality of evidence supporting the use of dapsone is weak. However, it is a well established treatment recommended in current, various national guidelines. There is a crucial need for well-designed randomized controlled trials to support its usage.
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Diaz-Ruiz A, Nader-Kawachi J, Calderón-Estrella F, Bermudez AM, Alvarez-Mejia L, Ríos C. Dapsone, More than an Effective Neuro and Cytoprotective Drug. Curr Neuropharmacol 2022; 20:194-210. [PMID: 34139984 PMCID: PMC9199557 DOI: 10.2174/1570159x19666210617143108] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/13/2021] [Accepted: 06/13/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Dapsone (4,4'-diamino-diphenyl sulfone) is a synthetic derivative of sulfones, with the antimicrobial activity described since 1937. It is also a drug traditionally used in dermatological therapies due to its anti-inflammatory effect. In recent years its antioxidant, antiexcitotoxic, and antiapoptotic effects have been described in different ischemic damage models, traumatic damage, and models of neurodegenerative diseases, such as Parkinson's (PD) and Alzheimer's diseases (AD). Finally, dapsone has proven to be a safe and effective drug as a protector against heart, renal and pulmonary cells damage; that is why it is now employed in clinical trials with patients as a neuroprotective therapy by regulating the main mechanisms of damage that lead to cell death ObjectiveThe objective of this study is to provide a descriptive review of the evidence demonstrating the safety and therapeutic benefit of dapsone treatment, evaluated in animal studies and various human clinical trials Methods: We conducted a review of PubMed databases looking for scientific research in animals and humans, oriented to demonstrate the effect of dapsone on regulating and reducing the main mechanisms of damage that lead to cell death ConclusionThe evidence presented in this review shows that dapsone is a safe and effective neuro and cytoprotective treatment that should be considered for translational therapy.
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Affiliation(s)
- Araceli Diaz-Ruiz
- Departamento de Neuroquímica Instituto Nacional de Neurología y Neurocirugía, Manuel Velasco Suárez, Ciudad de México, México
| | | | - Francisco Calderón-Estrella
- Posgrado en Ciencias Biológicas de la Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Alfonso Mata Bermudez
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana. Ciudad de México, México
| | - Laura Alvarez-Mejia
- Departamento de Neuroquímica Instituto Nacional de Neurología y Neurocirugía, Manuel Velasco Suárez, Ciudad de México, México
| | - Camilo Ríos
- Departamento de Neuroquímica Instituto Nacional de Neurología y Neurocirugía, Manuel Velasco Suárez, Ciudad de México, México
- Laboratorio de Neurofarmacología Molecular, Universidad Autónoma Metropolitana Xochimilco, Ciudad de México, México
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Frade MAC, Bernardes Filho F, Lima ALQD, Menezes MBD, Lugão HB. Asymptomatic low pulse oximetry measurements in leprosy patients in the time of COVID-19: Dapsone side effect. Rev Soc Bras Med Trop 2022; 55:e0491. [PMID: 35239908 PMCID: PMC8909431 DOI: 10.1590/0037-8682-0491-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 11/17/2021] [Indexed: 11/22/2022] Open
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35
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Xin YH, Guo YQ, Zhang XG, Deng CL. Palladium-Catalyzed Methylsulfonylation of Alkyl Halides Using Dimethyl Sulfite as SO 2 Surrogate and Methyl Source. J Org Chem 2021; 86:17496-17503. [PMID: 34747609 DOI: 10.1021/acs.joc.1c02188] [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
A novel and efficient method for the synthesis of methyl sulfone derivatives via palladium-catalyzed methylsulfonylation of alkyl halides with dimethyl sulfite has been described. A variety of aryl and alkyl iodides underwent the sulfonylation smoothly to furnish methyl sulfites in moderate to excellent yields.
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Affiliation(s)
- Yan-Hua Xin
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Ying-Qiong Guo
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.,Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, Hezhou University, Hezhou 542899, China
| | - Chen-Liang Deng
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.,Institute of New Materials & Industrial Technology, Wenzhou University, Wenzhou 325035, China
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36
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Protective effect of dapsone against bleomycin-induced lung fibrosis in rat. Exp Mol Pathol 2021; 124:104737. [DOI: 10.1016/j.yexmp.2021.104737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/25/2021] [Accepted: 12/11/2021] [Indexed: 02/07/2023]
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37
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Okura Y, Hiramatsu Y, Shimomura M, Taniguchi K, Nawate M, Takahashi Y, Kobayashi I. Successful Treatment of IgA Vasculitis With Prolonged Cutaneous Manifestation With Colchicine in a 10-Year-Old Boy. Mod Rheumatol Case Rep 2021; 6:97-100. [PMID: 34730811 DOI: 10.1093/mrcr/rxab041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/06/2021] [Accepted: 10/05/2021] [Indexed: 12/17/2022]
Abstract
We report a 10-year-old boy with IgA vasculitis (IgAV) with prolonged cutaneous manifestations who was successfully treated with colchicine. At the age of 9, he was diagnosed as having IgAV by typical purpura, abdominal pain, and hematochezia. Initially, his severe gastrointestinal manifestation subsided by prednisolone 60 mg/day and intravenous methylprednisolone pulse therapy. However, his gastrointestinal manifestation was glucocorticoid-dependent and refractory to factor XIII concentrate, intravenous immunoglobulin G, and mycophenolate mofetil. His abdominal pain and hematochezia responded to the combination therapy with dapsone and low dose of prednisolone 5 mg/day and did not relapse even after discontinuation of dapsone. On the other hands, the effect of dapsone on his cutaneous manifestation was dose-dependent. As well dapsone had no glucocorticoid-sparing effect. Approximately 12 months after onset, colchicine treatment was started, which resulted in remission of his chronic cutaneous manifestation. After prednisolone was tapered off, his cutaneous manifestation is currently well-controlled on colchicine 0.5 mg/day without adverse events. He had never complicated by kidney involvements. In conclusion, colchicine treatment exerts a beneficial effect in IgAV patients with prolonged cutaneous manifestation refractory to multiple drugs.
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Affiliation(s)
- Yuka Okura
- Department of Pediatrics, KKR Sapporo Medical Center, Sapporo, Hokkaido, Japan
| | - Yasuyoshi Hiramatsu
- Department of Pediatrics, KKR Sapporo Medical Center, Sapporo, Hokkaido, Japan
| | - Masaki Shimomura
- Department of Pediatrics, KKR Sapporo Medical Center, Sapporo, Hokkaido, Japan
| | - Kota Taniguchi
- Department of Pediatrics, KKR Sapporo Medical Center, Sapporo, Hokkaido, Japan
| | - Mitsuru Nawate
- Department of Pediatrics, KKR Sapporo Medical Center, Sapporo, Hokkaido, Japan
| | - Yutaka Takahashi
- Department of Pediatrics, KKR Sapporo Medical Center, Sapporo, Hokkaido, Japan
| | - Ichiro Kobayashi
- Department of Pediatrics, KKR Sapporo Medical Center, Sapporo, Hokkaido, Japan
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Murthy S, Schilf P, Patzelt S, Thieme M, Becker M, Kröger L, Bremer T, Derenda-Hell A, Knebel L, Fagiani F, Ibrahim SM, Schmidt E, Zillikens D, Sadik CD. Dapsone Suppresses Disease in Preclinical Murine Models of Pemphigoid Diseases. J Invest Dermatol 2021; 141:2587-2595.e2. [PMID: 34033839 DOI: 10.1016/j.jid.2021.04.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/09/2021] [Accepted: 04/01/2021] [Indexed: 01/10/2023]
Abstract
Epidermolysis bullosa acquisita and mucous membrane pemphigoid are autoimmune blistering diseases characterized by mucocutaneous blisters elicited by an autoantibody-mediated immune response against specific proteins of the epidermal basement membrane. The antibiotic dapsone is frequently used to treat both diseases, but its therapeutic effectiveness is uncertain, and its mode of action in these diseases is largely unknown. We evaluated the effect of dapsone in antibody transfer mouse models of epidermolysis bullosa acquisita and mucous membrane pemphigoid, which do not allow the drawing of conclusions on clinical treatment regimens but can be instrumental to partially uncover the mode(s) of action of dapsone in these diseases. Dapsone significantly mitigated inflammation in both models, reducing the recruitment of neutrophils into the skin and disrupting their release of leukotriene B4 (LTB4) and ROS in response to immune complexes. LTB4 has been implicated in numerous diseases, but effective LTB4 inhibitors for clinical use are not available. Our findings indicate that the mode of action of dapsone in these models may be based on the inhibition of LTB4 and ROS release from neutrophils. Moreover, they encourage testing the use of dapsone as an effective, albeit nonspecific, inhibitor of LTB4 biosynthesis in other LTB4-driven diseases.
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Affiliation(s)
- Sripriya Murthy
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany
| | - Paul Schilf
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany
| | - Sabrina Patzelt
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - Markus Thieme
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany
| | - Mareike Becker
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany
| | - Lasse Kröger
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany
| | - Tabea Bremer
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany
| | - Aleksandra Derenda-Hell
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany
| | - Lea Knebel
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany
| | - Francesca Fagiani
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany
| | - Saleh M Ibrahim
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany; Center for Research on Inflammation of the Skin (CRIS), University of Lübeck, Lübeck, Germany
| | - Enno Schmidt
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany; Center for Research on Inflammation of the Skin (CRIS), University of Lübeck, Lübeck, Germany
| | - Detlef Zillikens
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany; Center for Research on Inflammation of the Skin (CRIS), University of Lübeck, Lübeck, Germany
| | - Christian D Sadik
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany; Center for Research on Inflammation of the Skin (CRIS), University of Lübeck, Lübeck, Germany.
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Singh I, Sengupta U. Drug Resistance in Mycobacterium Leprae in the Context of Zero Leprosy. Indian Dermatol Online J 2021; 12:791-795. [PMID: 34934713 PMCID: PMC8653743 DOI: 10.4103/idoj.idoj_599_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 11/08/2022] Open
Affiliation(s)
- Itu Singh
- Department of Molecular Biology, Stanley Browne Laboratory, The Leprosy Mission Community Hospital – Nand Nagri, New Delhi, India
| | - Utpal Sengupta
- Department of Molecular Biology, Stanley Browne Laboratory, The Leprosy Mission Community Hospital – Nand Nagri, New Delhi, India
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Mikolasch A, Hahn V. Laccase-Catalyzed Derivatization of Antibiotics with Sulfonamide or Sulfone Structures. Microorganisms 2021; 9:microorganisms9112199. [PMID: 34835324 PMCID: PMC8620746 DOI: 10.3390/microorganisms9112199] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 11/16/2022] Open
Abstract
Trametes spec. laccase (EC 1.10.3.2.) mediates the oxidative coupling of antibiotics with sulfonamide or sulfone structures with 2,5-dihydroxybenzene derivatives to form new heterodimers and heterotrimers. These heteromolecular hybrid products are formed by nuclear amination of the p-hydroquinones with the primary amino group of the sulfonamide or sulfone antibiotics, and they inhibited in vitro the growth of Staphylococcus species, including multidrug-resistant strains.
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Affiliation(s)
- Annett Mikolasch
- Institute for Microbiology, University of Greifswald, Felix-Hausdorff-Str. 8, 17489 Greifswald, Germany;
- Interfaculty Institute for Genetics and Functional Genomics, University of Greifswald, Felix-Hausdorff-Str. 8, 17489 Greifswald, Germany
| | - Veronika Hahn
- Institute for Microbiology, University of Greifswald, Felix-Hausdorff-Str. 8, 17489 Greifswald, Germany;
- Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
- Correspondence: ; Tel.: +49-3834-5543872
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41
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Persechino F, Galli G, Persechino S, Valitutti F, Zenzeri L, Mauro A, Corleto VD, Parisi P, Ziparo C, Evangelisti M, Quatrale G, Di Nardo G. Skin Manifestations and Coeliac Disease in Paediatric Population. Nutrients 2021; 13:3611. [PMID: 34684612 PMCID: PMC8537533 DOI: 10.3390/nu13103611] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 12/16/2022] Open
Abstract
Celiac disease (CD) is an immune-mediated enteropathy caused by gluten ingestion, affecting approximately 1% of the worldwide population. Extraintestinal symptoms may be present as the first signs of CD, years before the CD diagnosis is made. A great variety of extraintestinal manifestations may be associated with CD. Cutaneous manifestations represent the main extraintestinal manifestations, with dermatitis herpetiformis being the most common in patients with CD. In adults, it has been demonstrated that the role of a gluten-free diet is crucial not only for the recovery of signs and symptoms associated with CD but also for cutaneous manifestations, which often improve after gluten avoidance. In children with CD, the association with skin disorders is well documented regarding dermatitis herpetiformis, but studies considering other dermatological conditions, such as psoriasis and atopic dermatitis, are few. The prevalence and manifestations of dermatological disorders in celiac children are often different from those in adults, explaining the gap between these populations. In addition, the therapeutic role of a gluten-free diet in the improvement in skin alterations is not fully understood in children and in adult population except for dermatitis herpetiformis. Therefore, cutaneous CD symptoms need to be known and recognized by physicians despite their specialties to improve early CD diagnosis, which is critical for a better prognosis. This review describes the current scientific evidence on skin manifestations associated with CD in the pediatric population.
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Affiliation(s)
- Flavia Persechino
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, 00185 Rome, Italy;
| | - Gloria Galli
- Department of Medical-Surgical and Translational Medicine, Sant’Andrea University Hospital, Sapienza University of Rome, 00185 Rome, Italy; (G.G.); (V.D.C.)
| | - Severino Persechino
- Dermatology Unit, NESMOS Department, Faculty of Medicine & Psychology, Sapienza University of Rome, Sant’Andrea University Hospital, 00185 Rome, Italy;
| | - Francesco Valitutti
- Pediatric Unit, AOU San Giovanni di Dio e Ruggi D’Aragona, Salerno, Italy and EBRIS (European Biomedical Research Institute of Salerno), 84121 Salerno, Italy;
| | - Letizia Zenzeri
- Pediatric Emergency Unit, Emergency Pediatric Department, AORN Santobono-Pausilipon Children’s Hospital, 80129 Naples, Italy; (L.Z.); (A.M.)
- Pediatric Unit, NESMOS Department, Faculty of Medicine & Psychology, Sapienza University of Rome, Sant’Andrea University Hospital, 00185 Rome, Italy; (P.P.); (C.Z.); (M.E.); (G.Q.)
| | - Angela Mauro
- Pediatric Emergency Unit, Emergency Pediatric Department, AORN Santobono-Pausilipon Children’s Hospital, 80129 Naples, Italy; (L.Z.); (A.M.)
| | - Vito Domenico Corleto
- Department of Medical-Surgical and Translational Medicine, Sant’Andrea University Hospital, Sapienza University of Rome, 00185 Rome, Italy; (G.G.); (V.D.C.)
| | - Pasquale Parisi
- Pediatric Unit, NESMOS Department, Faculty of Medicine & Psychology, Sapienza University of Rome, Sant’Andrea University Hospital, 00185 Rome, Italy; (P.P.); (C.Z.); (M.E.); (G.Q.)
| | - Chiara Ziparo
- Pediatric Unit, NESMOS Department, Faculty of Medicine & Psychology, Sapienza University of Rome, Sant’Andrea University Hospital, 00185 Rome, Italy; (P.P.); (C.Z.); (M.E.); (G.Q.)
| | - Melania Evangelisti
- Pediatric Unit, NESMOS Department, Faculty of Medicine & Psychology, Sapienza University of Rome, Sant’Andrea University Hospital, 00185 Rome, Italy; (P.P.); (C.Z.); (M.E.); (G.Q.)
| | - Giovanna Quatrale
- Pediatric Unit, NESMOS Department, Faculty of Medicine & Psychology, Sapienza University of Rome, Sant’Andrea University Hospital, 00185 Rome, Italy; (P.P.); (C.Z.); (M.E.); (G.Q.)
| | - Giovanni Di Nardo
- Pediatric Unit, NESMOS Department, Faculty of Medicine & Psychology, Sapienza University of Rome, Sant’Andrea University Hospital, 00185 Rome, Italy; (P.P.); (C.Z.); (M.E.); (G.Q.)
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Hazarika H, Gogoi P. Access to diverse organosulfur compounds via arynes: a comprehensive review on Kobayashi's aryne precursor. Org Biomol Chem 2021; 19:8466-8481. [PMID: 34568887 DOI: 10.1039/d1ob01436f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Arynes are highly reactive transient intermediates having enormous applications in organic synthesis. In the last three decades aryne chemistry has shown incredible developments in carbon-carbon and carbon-heteroatom bond formation reactions. After the discovery of Kobayashi's protocol for the generation of aryne intermediates in a mild way, this field of chemistry witnessed rapid growth in synthetic organic chemistry. One aspect of development in this field involves C-S bond formation under mild conditions which has a tremendous scope for the synthesis of various important organosulfur building blocks.
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Affiliation(s)
- Hemanta Hazarika
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P. 201002, India
| | - Pranjal Gogoi
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P. 201002, India
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Kareem F, Khatoon R, Minhas MA. WITHDRAWN: Biodegradable Self-assembled polymeric Micelles based on Poly (ethylene oxide)-block-Polylactide block copolymer for sustained delivery of dapsone. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Park JK, Lee S. Sulfoxide and Sulfone Synthesis via Electrochemical Oxidation of Sulfides. J Org Chem 2021; 86:13790-13799. [PMID: 34549959 DOI: 10.1021/acs.joc.1c01657] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The oxidation of diaryl sulfides and aryl alkyl sulfides to the corresponding sulfoxides and sulfones under electrochemical conditions is reported. Sulfoxides are selectively obtained in good yield under a constant current of 5 mA for 10 h in DMF, while sulfones are formed as the major product under a constant current of 10 or 20 mA for 10 h in MeOH. The oxygen of both the sulfoxide and sulfone function is derived from water.
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Affiliation(s)
- Jin Kyu Park
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Sunwoo Lee
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
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Chakraborty A, Ghosh R, Biswas A. Interaction of constituents of MDT regimen for leprosy with Mycobacterium leprae HSP18: impact on its structure and function. FEBS J 2021; 289:832-853. [PMID: 34555271 DOI: 10.1111/febs.16212] [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: 03/24/2021] [Revised: 08/18/2021] [Accepted: 09/22/2021] [Indexed: 11/29/2022]
Abstract
Mycobacterium leprae, the causative organism of leprosy, harbors many antigenic proteins, and one such protein is the 18-kDa antigen. This protein belongs to the small heat shock protein family and is commonly known as HSP18. Its chaperone function plays an important role in the growth and survival of M. leprae inside infected hosts. HSP18/18-kDa antigen is often used as a diagnostic marker for determining the efficacy of multidrug therapy (MDT) in leprosy. However, whether MDT drugs (dapsone, clofazimine, and rifampicin) do interact with HSP18 and how these interactions affect its structure and chaperone function is still unclear. Here, we report evidence of HSP18-dapsone/clofazimine/rifampicin interaction and its impact on the structure and chaperone function of HSP18. These three drugs interact efficiently with HSP18 (having submicromolar binding affinity) with 1 : 1 stoichiometry. Binding of these MDT drugs to the 'α-crystallin domain' of HSP18 alters its secondary structure and tryptophan micro-environment. Furthermore, surface hydrophobicity, oligomeric size, and thermostability of the protein are reduced upon interaction with these three drugs. Eventually, all these structural alterations synergistically decrease the chaperone function of HSP18. Interestingly, the effect of rifampicin on the structure, stability, and chaperone function of this mycobacterial small heat shock protein is more pronounced than the other two MDT drugs. This reduction in the chaperone function of HSP18 may additionally abate M. leprae survivability during multidrug treatment. Altogether, this study provides a possible foundation for rational designing and development of suitable HSP18 inhibitors in the context of effective treatment of leprosy.
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Affiliation(s)
- Ayon Chakraborty
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, India
| | - Rajesh Ghosh
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, India
| | - Ashis Biswas
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, India
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Abstract
No pharmaceutical products have been demonstrated to be safe and effective to specifically treat coronavirus disease 2019 (COVID-19); therefore, the therapy administered to infected patients remains symptomatic and empiric. Alongside the development of new, often high-cost drugs, a different tactic is being applied in parallel, investigating long-established, inexpensive medications originally designed for a variety of diseases to study their potential in treating COVID-19. The skin is the largest organ of the human body. With more than 3,000 skin conditions identified, the specialty of dermatology offers a rich armamentarium of systemic therapeutic agents aimed to treat the various chronic immunologically mediated, metabolic, infectious, occupational, inherited, or paraneoplastic dermatoses. Dermatologists have extensive experience with many drugs that have demonstrated promising in vitro antiviral action (directly targeting the viral replication). Many of these drugs have been used as nonspecific immunosuppressive strategies, such as glucocorticoids, synthetic antimalarials, colchicine, or other immunomodulators, and a number of targeted therapeutics have been directed at controlling hyperinflammatory processes similar to the "cytokine storm" associated with COVID-19 infection. We discuss several dermatologic drugs that have already been used or may have a promising role in the treatment of COVID-19.
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Dermatitis Herpetiformis: An Update on Diagnosis, Disease Monitoring, and Management. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:medicina57080843. [PMID: 34441049 PMCID: PMC8400185 DOI: 10.3390/medicina57080843] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/15/2021] [Accepted: 08/18/2021] [Indexed: 12/13/2022]
Abstract
Dermatitis herpetiformis (DH), Duhring disease, is caused by gluten sensitivity and affects 11.2 to 75.3 per 100,000 people in the United States and Europe with an incidence of 0.4 to 3.5 per 100,000 people per year. DH is characterized by a symmetrical blistering rash on the extensor surfaces with severe pruritus. The diagnosis continues to be made primarily by pathognomonic findings on histopathology, especially direct immunofluorescence (DIF). Recently, anti-epidermal transglutaminase (TG3) antibodies have shown to be a primary diagnostic serology, while anti-tissue transglutaminase (TG2) and other autoantibodies may be used to support the diagnosis and for disease monitoring. Newly diagnosed patients with DH should be screened and assessed for associated diseases and complications. A gluten-free diet (GFD) and dapsone are still mainstays of treatment, but other medications may be necessary for recalcitrant cases. Well-controlled DH patients, managed by a dermatologist, a gastroenterologist, and a dietician, have an excellent prognosis. Our review comprehensively details the current diagnostic methods, as well as methods used to monitor its disease course. We also describe both the traditional and novel management options reported in the literature.
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Matsuno CA, Nahas TR, Yamakami IM, Michalany NS, Sathler CSCDO. Lupus miliaris disseminatus faciei : when a rare skin disease involves the eyelid. REVISTA BRASILEIRA DE OFTALMOLOGIA 2021. [DOI: 10.37039/1982.8551.20210015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Gul J, Ullah S, Ali I, Rao K, Iqbal KM, Jabri T, Perveen S, Rashid A, Shah MR. Synthesis, characterization and drug delivery application of Dapsone based double tailed biocompatible nonionic surfactant. Chem Phys Lipids 2021; 239:105115. [PMID: 34252425 DOI: 10.1016/j.chemphyslip.2021.105115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/17/2021] [Accepted: 07/07/2021] [Indexed: 10/20/2022]
Abstract
The increase in antimicrobial resistance has created a crisis that has become top priority for global policy and public health. Antibiotics are constantly being rendered in-effective due to the emergence of bacterial resistance; therefore, novel strategies for improving therapeutic efficacies of existing drugs must be focused. Advancements in nanotechnology have opened up new avenues for enhancing therapeutic efficacy of existing drugs via construction of intelligent and efficient delivery systems. This study reports the synthesis of Dapsone based nonionic surfactant and its utilization as delivery system for Ceftriaxone sodium. The synthesized nonionic surfactant was characterized via mass spectrometry and 1H NMR and IR spectroscopic techniques. The drug loaded vesicles of newly synthesized sulfur based nonionic were formed through thin film hydration method and characterized for drug entrapment efficiency, vesicles size, zeta potential, morphology using UV-vis spectrometry, dynamic light scattering (DLS) and atomic force microscopic (AFM) techniques. The biocompatibility of newly synthesized surfactant was assessed using blood hemolysis and in-vitro cells cytotoxicity. Antibacterial potential of drug loaded vesicles was assessed in gram positive and gram negative bacterial cultures. The spectroscopic results confirm successful synthesis of novel sulfur based nonionic surfactant that formed spherical shaped drug loaded vesicles with an average size of 97.95 ± 3.45 nm and 56.3 ± 3.15 % entrapment of the model drug (Ceftriaxone sodium). The vesicles displayed negative surface charge of -16.8 ± 3.72 mV and released the entrapped drug in a controlled way in-vitro drug release. The drug loaded vesicular formulation showed enhanced cellular uptake and greater antibacterial potentials when compared with control. Results of this study show that the Dapsone based surfactant is safe, biocompatible, non-toxic and can be used as promising vesicular carrier for enhancing therapeutic efficacy of antibacterial drug, Ceftriaxone sodium.
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Affiliation(s)
- Jasra Gul
- International Center for Chemical and Biological Sciences, H.E.J Research Institute of Chemistry, University of Karachi, Karachi, Pakistan
| | - Shafi Ullah
- International Center for Chemical and Biological Sciences, H.E.J Research Institute of Chemistry, University of Karachi, Karachi, Pakistan
| | - Imdad Ali
- International Center for Chemical and Biological Sciences, H.E.J Research Institute of Chemistry, University of Karachi, Karachi, Pakistan
| | - Komal Rao
- International Center for Chemical and Biological Sciences, H.E.J Research Institute of Chemistry, University of Karachi, Karachi, Pakistan
| | - Kanwal Muhammad Iqbal
- International Center for Chemical and Biological Sciences, H.E.J Research Institute of Chemistry, University of Karachi, Karachi, Pakistan
| | - Tooba Jabri
- International Center for Chemical and Biological Sciences, H.E.J Research Institute of Chemistry, University of Karachi, Karachi, Pakistan
| | - Samina Perveen
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, PR China
| | - Abdur Rashid
- Drug Regulatory Authority of Pakistan, TF Complex G9/4, Islamabad, Pakistan
| | - Muhammad Raza Shah
- International Center for Chemical and Biological Sciences, H.E.J Research Institute of Chemistry, University of Karachi, Karachi, Pakistan.
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Rohit Singh T, Ezhilarasan D. Lagerstroemia speciosa (L.) Pers., ethanolic leaves extract attenuates dapsone-induced liver inflammation in rats. Drug Chem Toxicol 2021; 45:2361-2370. [PMID: 34225555 DOI: 10.1080/01480545.2021.1945079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Drug-induced liver injury is a common cause of acute liver failure. Dapsone is increasingly used in combination with rifampicin for the treatment of leprosy and also for several dermatological disorders. Clinically, abnormal liver function and focal bile duct destruction were reported after dapsone therapy. Lagerstroemia speciosa Pers., commonly known as Banaba has been traditionally used to treat various ailments including diabetes and obesity due to its antioxidant and anti-inflammatory efficacies. This study investigated the hepatoprotective effect of ethanolic banaba leaves extract (EBLE) against dapsone-induced hepatotoxicity in rats. Dapsone (30 mg/kg, i.p.) was administered twice daily for 30 days. In separate groups, rats were post-treated orally with EBLE (250 and 500 mg/kg) and silymarin (100 mg/kg) once daily for 30 days after dapsone administration. The marker enzymes of hepatotoxicity, oxidative stress markers, inflammatory markers and histopathology of liver were done. HPTLC analysis confirmed the presence of 12.87 µg of corosolic acid per mg of EBLE. Dapsone administration-induced significant (p < 0.001) elevation of marker enzymes of hepatotoxicity in serum. This treatment also increased lipid peroxidation (p < 0.001) and pro-inflammatory markers (tumor necrosis factor-alpha, transforming growth factor-beta, and nuclear factor kappa-B) expressions (p < 0.001) and decreased antioxidants (p < 0.001) such superoxide dismutase, catalase and glutathione in the liver tissue. All these abnormalities were significantly (p < 0.001) mitigated after EBLE (500 mg/kg) and silymarin post-treatments. The results of this study suggest that silymarin and EBLE can be used for dapsone-induced hepatotoxicity.
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Affiliation(s)
- Thakur Rohit Singh
- Department of Pharmacology, Malla Reddy Institute of Medical Sciences, Hyderabad, India.,Department of Pharmacology, The Blue Lab, Molecular Medicine and Toxicology Division, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Devaraj Ezhilarasan
- Department of Pharmacology, The Blue Lab, Molecular Medicine and Toxicology Division, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India.,Biomedical Research Unit and Laboratory Animal Centre, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, India
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