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Girgis AS, Panda SS, Kariuki BM, Bekheit MS, Barghash RF, Aboshouk DR. Indole-Based Compounds as Potential Drug Candidates for SARS-CoV-2. Molecules 2023; 28:6603. [PMID: 37764378 PMCID: PMC10537473 DOI: 10.3390/molecules28186603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/07/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
The COVID-19 pandemic has posed a significant threat to society in recent times, endangering human health, life, and economic well-being. The disease quickly spreads due to the highly infectious SARS-CoV-2 virus, which has undergone numerous mutations. Despite intense research efforts by the scientific community since its emergence in 2019, no effective therapeutics have been discovered yet. While some repurposed drugs have been used to control the global outbreak and save lives, none have proven universally effective, particularly for severely infected patients. Although the spread of the disease is generally under control, anti-SARS-CoV-2 agents are still needed to combat current and future infections. This study reviews some of the most promising repurposed drugs containing indolyl heterocycle, which is an essential scaffold of many alkaloids with diverse bio-properties in various biological fields. The study also discusses natural and synthetic indole-containing compounds with anti-SARS-CoV-2 properties and computer-aided drug design (in silico studies) for optimizing anti-SARS-CoV-2 hits/leads.
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Affiliation(s)
- Adel S. Girgis
- Department of Pesticide Chemistry, National Research Centre, Dokki, Giza 12622, Egypt; (M.S.B.); (R.F.B.); (D.R.A.)
| | - Siva S. Panda
- Department of Chemistry and Biochemistry, Augusta University, Augusta, GA 30912, USA
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, GA 30912, USA
| | - Benson M. Kariuki
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK; (B.M.K.)
| | - Mohamed S. Bekheit
- Department of Pesticide Chemistry, National Research Centre, Dokki, Giza 12622, Egypt; (M.S.B.); (R.F.B.); (D.R.A.)
| | - Reham F. Barghash
- Department of Pesticide Chemistry, National Research Centre, Dokki, Giza 12622, Egypt; (M.S.B.); (R.F.B.); (D.R.A.)
| | - Dalia R. Aboshouk
- Department of Pesticide Chemistry, National Research Centre, Dokki, Giza 12622, Egypt; (M.S.B.); (R.F.B.); (D.R.A.)
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Shome A, Chahat, Chawla V, Chawla PA. Neuroprotective Effect of Natural Indole and β-carboline Alkaloids against Parkinson's Disease: An Overview. Curr Med Chem 2023:CMC-EPUB-134477. [PMID: 37702172 DOI: 10.2174/0929867331666230913100624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/02/2023] [Accepted: 07/21/2023] [Indexed: 09/14/2023]
Abstract
Parkinson's disease (PD) is a devastating neurodegenerative condition that mostly damages dopaminergic neurons in the substantia nigra and impairs human motor function. Males are more likely than females to have PD. There are two main pathways associated with PD: one involves the misfolding of α-synuclein, which causes neurodegeneration, and the other is the catalytic oxidation of dopamine via MAO-B, which produces hydrogen peroxide that can cause mitochondrial damage. Parkin (PRKN), α-synuclein (SNCA), heat shock protein (HSP), and leucine-rich repeat kinase-2 (LRRK2) are some of the target areas for genetic alterations that cause neurodegeneration in Parkinson's disease (PD). Under the impact of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), which is also important in Parkinson's disease (PD), inhibition of mitochondrial complex 1 results in enhanced ROS generation in neuronal cells. Natural products are still a superior option in the age of synthetic pharmaceuticals because of their lower toxicity and moderate side effects. A promising treatment for PD has been discovered using beta-carboline (also known as " β-carboline") and indole alkaloids. However, there are not many studies done on this particular topic. In the herbs containing β-carbolines and indoles, the secondary metabolites and alkaloids, β-carbolines and indoles, have shown neuroprotective and cognitive-enhancing properties. In this review, we have presented results from 18 years of research on the effects of indole and β-carboline alkaloids against oxidative stress and MAO inhibition, two key targets in PD. In the SAR analysis, the activity has been correlated with their unique structural characteristics. This study will undoubtedly aid researchers in looking for new PD treatment options.
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Affiliation(s)
- Abhimannu Shome
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga, Punjab, 142001, India
| | - Chahat
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga, Punjab, 142001, India
| | - Viney Chawla
- University Institute of Pharmaceutical Sciences and Research, Baba Farid University of Health Sciences, Faridkot, Punjab, India
| | - Pooja A Chawla
- Department of Pharmaceutical Chemistry, ISF College of Pharmacy, Ghal Kalan, G.T Road, Moga, Punjab, 142001, India
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53
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ISHIGURO N, HAYASHI T, OKAYAMA M, YAMAGUCHI T, KOHNO M, KAWAKAMI H, MITSUNAGA T, NAKAMURA K, INAGAKI M. Effects of blackcurrant extract on indole and ammonia productions in an in vitro human fecal culture model. Biosci Microbiota Food Health 2023; 43:23-28. [PMID: 38188663 PMCID: PMC10767324 DOI: 10.12938/bmfh.2022-094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 08/13/2023] [Indexed: 01/09/2024]
Abstract
Blackcurrant is available as a traditional medicine in Europe. However, the detailed effects of blackcurrant on the human gut microbiota remain unknown. In this study, we investigated the prebiotic effects of a blackcurrant extract using a human fecal culture model in six healthy subjects. Feces were individually inoculated into a medium with or without the blackcurrant extract and then fermented for 48 hr under anaerobic conditions. The results obtained from analysis of samples from the fermented medium demonstrated that after 48 hr of fermentation, the pH of the medium with the blackcurrant extract was significantly decreased (control, 6.62 ± 0.20; blackcurrant extract, 6.41 ± 0.33; p=0.0312). A 16S rRNA gene sequencing analysis of the microbiota of the fermented medium showed a significant increase in the relative abundance of Bifidobacteriaceae. In measuring the concentrations of putrefactive components in the fermented medium, we found that the blackcurrant extract significantly reduced ammonia levels and displayed a tendency toward reduced indole levels. Our results suggest that blackcurrant extract could be a potential ingredient for relief of putrefactive components in the gut.
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Affiliation(s)
- Nanami ISHIGURO
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
| | - Takayuki HAYASHI
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
| | - Miho OKAYAMA
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
| | - Taiki YAMAGUCHI
- Morishita Jintan Co., Ltd., 2-40, Tamatsukuri 1-Chome,
Chuo-Ku, Osaka 540-8566, Japan
| | - Mamiko KOHNO
- Morishita Jintan Co., Ltd., 2-40, Tamatsukuri 1-Chome,
Chuo-Ku, Osaka 540-8566, Japan
| | - Hirosato KAWAKAMI
- Morishita Jintan Co., Ltd., 2-40, Tamatsukuri 1-Chome,
Chuo-Ku, Osaka 540-8566, Japan
| | - Tohru MITSUNAGA
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
| | - Kohei NAKAMURA
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
| | - Mizuho INAGAKI
- Faculty of Applied Biological Sciences, Gifu University, 1-1
Yanagido, Gifu, Gifu 501-1193, Japan
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Mead JR. Indole metabolites generated by microbiota inhibit Cryptosporidium growth. Trends Parasitol 2023; 39:716-717. [PMID: 37500333 DOI: 10.1016/j.pt.2023.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 07/14/2023] [Indexed: 07/29/2023]
Abstract
Funkhouser-Jones et al. recently identified gut metabolites that affected Cryptosporidium growth. A key focus, indole, was shown to inhibit the parasite in vivo and in vitro by decreasing the host mitochondria function and the membrane potential of parasite mitosomes. These findings help clarify the role microflora and metabolites play in host resistance.
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Affiliation(s)
- Jan R Mead
- Department of Pediatrics, Emory University and Children's Healthcare Organization of Atlanta, Atlanta, GA 30322, USA; Atlanta VA Medical Center, Decatur, GA 30033, USA.
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Huang JJ, Liao HC, Hsu CE, Liu YR, Chang YF, Chou SY. Synthesis of Spirocyclopropane-Containing 4 H-Pyrazolo[1,5- a] indoles via Alkylative Dearomatization and Intramolecular N-Imination of an Indole- O-(Methylsulfonyl)oxime. Molecules 2023; 28:6374. [PMID: 37687203 PMCID: PMC10490174 DOI: 10.3390/molecules28176374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
In this paper, we report the synthesis of spirocyclopropane-containing 4H-pyrazolo[1,5-a]indoles 6a-e via alkylative dearomatization and intramolecular N-imination of indole-O-(methylsulfonyl)oxime 11. Starting materials tryptophol (7) and 2-bromocyclopetanone (8) were reacted in the presence of HBF4·OEt2, providing 1,2,3,5,6,11-hexahydrocyclopenta[2,3]oxepino[4,5-b]indole (9) in a 63% yield. Compound 9 was reacted with hydroxylamine hydrochloride to afford oxime 10 (65% yield), which was subsequently bis-methanesulfonated to form 11 in a 85% yield. Heating 11 with various alcohols in the presence of N,N-diisopropylethylamine (DIPEA) triggered the alkylative dearomatization and intramolecular N-imination, forming the spirocyclopropane and 4H-pyrazolo[1,5-a]indole structures in the targets 6a-e with 67-84% yields.
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Affiliation(s)
- Jiann-Jyh Huang
- Institute of BioPharmaceutical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Department of Applied Chemistry, National Chiayi University, Chiayi City 600, Taiwan
| | - Hung-Chun Liao
- Department of Applied Chemistry, National Chiayi University, Chiayi City 600, Taiwan
| | - Cheng-En Hsu
- Department of Applied Chemistry, National Chiayi University, Chiayi City 600, Taiwan
| | - Yan-Ru Liu
- Department of Applied Chemistry, National Chiayi University, Chiayi City 600, Taiwan
| | - Yi-Fu Chang
- Department of Applied Chemistry, National Chiayi University, Chiayi City 600, Taiwan
| | - Shan-Yen Chou
- Development Center for Biotechnology, National Biotechnology Research Park, Taipei City 115, Taiwan
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56
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Song M, Hua Y, Liu Y, Xiao X, Yu H, Deng X. Design, Synthesis, and Antimicrobial Activity Evaluation of Ciprofloxacin- Indole Hybrids. Molecules 2023; 28:6325. [PMID: 37687154 PMCID: PMC10488977 DOI: 10.3390/molecules28176325] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/20/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
With the overuse and misuse of antimicrobial drugs, antibacterial resistance is becoming a critical global health problem. New antibacterial agents are effective measures for overcoming the crisis of drug resistance. In this paper, a novel set of ciprofloxacin-indole/acetophenone hybrids was designed, synthesized, and structurally elucidated with the help of NMR and high-resolution mass spectrometry. The in vitro antibacterial activities of these hybrids against gram-positive and gram-negative pathogens, including four multidrug-resistant clinical isolates, were evaluated and compared with those of the parent drug ciprofloxacin (CIP). All the target compounds (MIC = 0.0625-32 μg/mL) exhibited excellent inhibitory activity against the strains tested. Among them, 3a (MIC = 0.25-8 μg/mL) showed comparable or slightly less potent activity than CIP. The most active hybrid, 8b (MIC = 0.0626-1 μg/mL), showed equal or higher activity than CIP. Moreover, compound 8b showed superior bactericidal capability to CIP, with undetectably low resistance frequencies. Furthermore, molecular docking studies conducted showed that 8b and CIP had a similar binding mode to DNA gyrase (Staphylocouccus aureus). Thus, hybrids 3a and 8b could act as a platform for further investigations.
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Affiliation(s)
- Mingxia Song
- Affiliated Hospital of Jinggangshan University, Ji’an 343000, China; (M.S.)
- Health Science Center, Jinggangshan University, Ji’an 343009, China
- Center for Clinical Medicine Research of Jinggangshan University, Jinggangshan University, Ji’an 343009, China
| | - Yi Hua
- Health Science Center, Jinggangshan University, Ji’an 343009, China
- Center for Clinical Medicine Research of Jinggangshan University, Jinggangshan University, Ji’an 343009, China
| | - Yuxin Liu
- Affiliated Hospital of Jinggangshan University, Ji’an 343000, China; (M.S.)
- Center for Clinical Medicine Research of Jinggangshan University, Jinggangshan University, Ji’an 343009, China
| | - Xunli Xiao
- Affiliated Hospital of Jinggangshan University, Ji’an 343000, China; (M.S.)
| | - Haihong Yu
- Health Science Center, Jinggangshan University, Ji’an 343009, China
- Center for Clinical Medicine Research of Jinggangshan University, Jinggangshan University, Ji’an 343009, China
| | - Xianqing Deng
- Affiliated Hospital of Jinggangshan University, Ji’an 343000, China; (M.S.)
- Health Science Center, Jinggangshan University, Ji’an 343009, China
- Center for Clinical Medicine Research of Jinggangshan University, Jinggangshan University, Ji’an 343009, China
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57
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Aksenov NA, Arutiunov NA, Aksenov AV, Kirilov NK, Aksenova IV, Aksenov DA, Aleksandrova EV, Rubin M, Kornienko A. Synthesis of β-Carbolines with Electrocyclic Cyclization of 3-Nitrovinyl indoles. Int J Mol Sci 2023; 24:13107. [PMID: 37685914 PMCID: PMC10487476 DOI: 10.3390/ijms241713107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/19/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
The β-carboline motif is common in drug discovery and among numerous biologically active natural products. However, its synthetic preparation relies on multistep sequences and heavily depends on the type of substitution required in the core of the desired β-carboline target. Herein, we demonstrate that this structural motif can be accessed with the microwave-assisted electrocyclic cyclization of heterotrienic aci (alkylideneazinic acid) forms of 3-nitrovinylindoles. The reaction can start with 3-nitrovinylindoles themselves under two sets of conditions. The first one involves microwave irradiation of butanolic solutions of 3-nitrovinylindoles, whereas the second one consists of prior Boc protection of indolic nitrogen, where the protecting group cleanly comes off during the course of the reaction. Alternatively, the reaction can start with 3-nitrovinylindoles prepared in situ using various processes. Finally, the reaction may utilize indoles with β-nitrostyrenes, likely involving the intermediacy of spirocyclic oxazolines, which rearrange to similar heterotrienic systems undergoing cyclization to β-carbolines. As part of this study, several natural products, namely, alkaloids norharmane, harmane, and eudistomin N, were synthesized.
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Affiliation(s)
- Nicolai A. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russia; (N.A.A.); (A.V.A.); (N.K.K.); (I.V.A.); (D.A.A.); (E.V.A.); (M.R.)
| | - Nikolai A. Arutiunov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russia; (N.A.A.); (A.V.A.); (N.K.K.); (I.V.A.); (D.A.A.); (E.V.A.); (M.R.)
| | - Alexander V. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russia; (N.A.A.); (A.V.A.); (N.K.K.); (I.V.A.); (D.A.A.); (E.V.A.); (M.R.)
| | - Nikita K. Kirilov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russia; (N.A.A.); (A.V.A.); (N.K.K.); (I.V.A.); (D.A.A.); (E.V.A.); (M.R.)
| | - Inna V. Aksenova
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russia; (N.A.A.); (A.V.A.); (N.K.K.); (I.V.A.); (D.A.A.); (E.V.A.); (M.R.)
| | - Dmitrii A. Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russia; (N.A.A.); (A.V.A.); (N.K.K.); (I.V.A.); (D.A.A.); (E.V.A.); (M.R.)
| | - Elena V. Aleksandrova
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russia; (N.A.A.); (A.V.A.); (N.K.K.); (I.V.A.); (D.A.A.); (E.V.A.); (M.R.)
| | - Michael Rubin
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russia; (N.A.A.); (A.V.A.); (N.K.K.); (I.V.A.); (D.A.A.); (E.V.A.); (M.R.)
| | - Alexander Kornienko
- Department of Chemistry and Biochemistry, Texas State University, 601 University Dr., San Marcos, TX 78666, USA
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Cooney LN, O’Shea KD, Winfield HJ, Cahill MM, Pierce LT, McCarthy FO. Bisindolyl Maleimides and Indolylmaleimide Derivatives-A Review of Their Synthesis and Bioactivity. Pharmaceuticals (Basel) 2023; 16:1191. [PMID: 37764999 PMCID: PMC10534823 DOI: 10.3390/ph16091191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 09/29/2023] Open
Abstract
The evolution of bisindolyl maleimides and indolyl maleimide derivatives and their unique biological activities have stimulated great interest in medicinal chemistry programs. Bisindolylmaleimide (BIM)-type compounds arise from natural sources such as arcyriarubin and are biosynthetically related to indolocarbazoles. BIMs are commonly the immediate synthetic precursors of indolocarbazoles, lacking a central bond between the two aromatic units and making them more flexible and drug-like. Synthetic endeavours within this class of compounds are broad and have led to the development of both remarkably potent and selective protein kinase inhibitors. Clinical BIM examples include ruboxistaurin and enzastaurin, which are highly active inhibitors of protein kinase C-β. While BIMs are widely recognised as protein kinase inhibitors, other modes of activity have been reported, including the inhibition of calcium signalling and antimicrobial activity. Critically, structural differences can be used to exploit new bioactivity and therefore it is imperative to discover new chemical entities to address new targets. BIMs can be highly functionalised or chemically manipulated, which provides the opportunity to generate new derivatives with unique biological profiles. This review will collate new synthetic approaches to BIM-type compounds and their associated bioactivities with a focus on clinical applications.
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Affiliation(s)
| | | | | | | | | | - Florence O. McCarthy
- School of Chemistry and ABCRF, University College Cork, Western Road, T12K8AF Cork, Ireland; (L.N.C.); (K.D.O.); (H.J.W.); (M.M.C.); (L.T.P.)
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59
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Cui B, Guo Q, Li X, Song S, Wang M, Wang G, Yan A, Zhou J, Deng Y. A response regulator controls Acinetobacter baumannii virulence by acting as an indole receptor. PNAS Nexus 2023; 2:pgad274. [PMID: 37649583 PMCID: PMC10465187 DOI: 10.1093/pnasnexus/pgad274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 08/18/2023] [Indexed: 09/01/2023]
Abstract
Indole is an important signal employed by many bacteria to modulate intraspecies signaling and interspecies or interkingdom communication. Our recent study revealed that indole plays a key role in regulating the physiology and virulence of Acinetobacter baumannii. However, it is not clear how A. baumannii perceives and responds to the indole signal in modulating biological functions. Here, we report that indole controls the physiology and virulence of A. baumannii through a previously uncharacterized response regulator designated as AbiR (A1S_1394), which contains a cheY-homologous receiver (REC) domain and a helix-turn-helix (HTH) DNA-binding domain. AbiR controls the same biological functions as the indole signal, and indole-deficient mutant phenotypes were rescued by in trans expression of AbiR. Intriguingly, unlike other response regulators that commonly interact with signal ligands through the REC domain, AbiR binds to indole with a high affinity via an unusual binding region, which is located between its REC and HTH domains. This interaction substantially enhances the activity of AbiR in promoter binding and in modulation of target gene expression. Taken together, our results present a widely conserved regulator that controls bacterial physiology and virulence by sensing the indole signal in a unique mechanism.
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Affiliation(s)
- Binbin Cui
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Gongchang Road, Guangming District, Shenzhen 518107, China
| | - Quan Guo
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Gongchang Road, Guangming District, Shenzhen 518107, China
| | - Xia Li
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Gongchang Road, Guangming District, Shenzhen 518107, China
| | - Shihao Song
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Gongchang Road, Guangming District, Shenzhen 518107, China
- School of Pharmaceutical Sciences, Hainan University, Renmin Avenue, Meilan District, Haikou 570228, China
| | - Mingfang Wang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Gongchang Road, Guangming District, Shenzhen 518107, China
| | - Gerun Wang
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Gongchang Road, Guangming District, Shenzhen 518107, China
| | - Aixin Yan
- School of Biological Sciences, The University of Hong Kong, University Road, Pok Fu Lam Estate, Central and Western District, Hong Kong 999077, China
| | - Jianuan Zhou
- Integrative Microbiology Research Center, South China Agricultural University, Wushan Road, Wushan Street, Tianhe District Guangzhou 510642, China
| | - Yinyue Deng
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Gongchang Road, Guangming District, Shenzhen 518107, China
- School of Pharmaceutical Sciences, Hainan University, Renmin Avenue, Meilan District, Haikou 570228, China
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60
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Ramli Y, Al Garadi W, El Hafi M, Lhoussaine E, Essassi EM, Alsubari A, Mague JT. Diethyl 2,2'-[({2-chloro-5-[(2-eth-oxy-2-oxoeth-yl)(2-methyl-indolin-1-yl)carbamo-yl]phen-yl}sulfon-yl)aza-nedi-yl]di-acetate. IUCrdata 2023; 8:x230699. [PMID: 37693779 PMCID: PMC10483534 DOI: 10.1107/s2414314623006995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 08/07/2023] [Indexed: 09/12/2023] Open
Abstract
The majority of the title mol-ecule, C28H34ClN3O9S, is disordered over two closely spaced sets of sites; the site occupancy of the major component = 0.542 (3). The conformation of each component is approximately U-shaped with the chloro-benzene ring forming the base and the indolinyl and sulfamoyl groups the sides; an intra-molecular C-H⋯Cl hydrogen bond possibly contributes to the stabilization of the conformation. In the crystal, a corrugated layer structure parallel to the ab plane is formed by C-H⋯O and C-H⋯Cl hydrogen bonds together with C-H⋯π(ring) inter-actions.
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Affiliation(s)
- Youssef Ramli
- Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco
- Mohammed VI Center for Research and Innovation (CM6), Rabat 10000, Morocco
| | - Wedad Al Garadi
- Laboratoire de Chimie Organique Heterocyclique, Faculté des Sciences, Université Mohammed V Rabat, Morocco
| | - Mohamed El Hafi
- Laboratoire de Chimie Organique Heterocyclique, Faculté des Sciences, Université Mohammed V Rabat, Morocco
| | - Elghayati Lhoussaine
- Laboratoire de Chimie Organique Heterocyclique, Faculté des Sciences, Université Mohammed V Rabat, Morocco
| | - El Mokhtar Essassi
- Laboratoire de Chimie Organique Heterocyclique, Faculté des Sciences, Université Mohammed V Rabat, Morocco
| | - Abdulsalam Alsubari
- Laboratory of Medicinal Chemistry, Faculty of Clinical Pharmacy, 21 September University, Yemen
| | - Joel T. Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
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Chen X, Ishfaq M, Hu F, Zheng Q, Hu X, Wang J, Huo N. Bacillus subtilis KC1 prevents Mycoplasma gallisepticum-induced lung injury by enhancing intestinal Bifidobacterium animalis and regulating indole metabolism in chickens. Poult Sci 2023; 102:102824. [PMID: 37393707 PMCID: PMC10404754 DOI: 10.1016/j.psj.2023.102824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/28/2023] [Accepted: 05/26/2023] [Indexed: 07/04/2023] Open
Abstract
It has been reported that dietary administration of Bacillus subtilis KC1 is effective in alleviating lung injury induced by Mycoplasma gallisepticum (MG) infection in chickens. However, the underlying molecular mechanism of B. subtilis KC1 against MG infection is still unclear. The purpose of this study was to determine whether B. subtilis KC1 could alleviate MG infection-induced lung injury in chickens by regulating their gut microbiota. The results of this study indicate that B. subtilis KC1 supplementation has the potential to alleviate MG infection-induced lung injury as reflected by reduced MG colonization, reduced pathologic changes, and decreased production of pro-inflammatory cytokines. In addition, B. subtilis KC1 supplementation was partially effective in alleviating the gut microbiota disorder caused by MG infection. Importantly, B. subtilis KC1 enriched the beneficial Bifidobacterium animalis in gut and thus reversed indole metabolic dysfunction caused by MG infection. B. subtilis KC1 supplementation increased levels of indole, which enhanced aryl hydrocarbon receptor activation, improving barrier function and alleviating lung inflammation caused by MG. Overall, this study indicates that B. subtilis KC1 has a "gut-lung axis" mechanism that can reduce the severity of MG infection by enriching intestinal B. animalis and regulating indole metabolism.
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Affiliation(s)
- Xueping Chen
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, P. R. China
| | - Muhammad Ishfaq
- College of Computer Science, Huanggang Normal University, Huanggang, 438000, P. R. China
| | - Fangyuan Hu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, P. R. China
| | - Qian Zheng
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, P. R. China
| | - Xiang Hu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, P. R. China
| | - Jian Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, P. R. China
| | - Nairui Huo
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, P. R. China.
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Faggion S, Boschi E, Veroneze R, Carnier P, Bonfatti V. Genomic Prediction and Genome-Wide Association Study for Boar Taint Compounds. Animals (Basel) 2023; 13:2450. [PMID: 37570259 PMCID: PMC10417264 DOI: 10.3390/ani13152450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/13/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
With a perspective future ban on surgical castration in Europe, selecting pigs with reduced ability to accumulate boar taint (BT) compounds (androstenone, indole, skatole) in their tissues seems a promising strategy. BT compound concentrations were quantified in the adipose tissue of 1075 boars genotyped at 29,844 SNPs. Traditional and SNP-based breeding values were estimated using pedigree-based BLUP (PBLUP) and genomic BLUP (GBLUP), respectively. Heritabilities for BT compounds were moderate (0.30-0.52). The accuracies of GBLUP and PBLUP were significantly different for androstenone (0.58 and 0.36, respectively), but comparable for indole and skatole (~0.43 and ~0.47, respectively). Several SNP windows, each explaining a small percentage of the variance of BT compound concentrations, were identified in a genome-wide association study (GWAS). A total of 18 candidate genes previously associated with BT (MX1), reproduction traits (TCF21, NME5, PTGFR, KCNQ1, UMODL1), and fat metabolism (CTSD, SYT8, TNNI2, CD81, EGR1, GIPC2, MIGA1, NEGR1, CCSER1, MTMR2, LPL, ERFE) were identified in the post-GWAS analysis. The large number of genes related to fat metabolism might be explained by the relationship between sexual steroid levels and fat deposition and be partially ascribed to the pig line investigated, which is selected for ham quality and not for lean growth.
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Affiliation(s)
- Sara Faggion
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell’Università 16, 35020 Padova, Italy; (E.B.); (P.C.); (V.B.)
| | - Elena Boschi
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell’Università 16, 35020 Padova, Italy; (E.B.); (P.C.); (V.B.)
| | - Renata Veroneze
- Department of Animal Science, Universidade Federal de Viçosa, Viçosa 36570-999, Brazil;
| | - Paolo Carnier
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell’Università 16, 35020 Padova, Italy; (E.B.); (P.C.); (V.B.)
| | - Valentina Bonfatti
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell’Università 16, 35020 Padova, Italy; (E.B.); (P.C.); (V.B.)
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63
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Faggion S, Carnier P, Bonfatti V. Genetic Correlations between Boar Taint Compound Concentrations in Fat of Purebred Boars and Production and Ham Quality Traits in Crossbred Heavy Pigs. Animals (Basel) 2023; 13:2445. [PMID: 37570254 PMCID: PMC10417360 DOI: 10.3390/ani13152445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
Selecting pigs with reduced ability to accumulate boar taint (BT) compounds in their tissues is an alternative to male surgical castration. As the majority of slaughter pigs are crossbred, before selecting against BT in purebreds, it is essential to consider possible impacts on commercial traits in crossbreds. This study estimated the genetic correlations between BT compound levels measured in 1115 purebred pigs and carcass and ham quality traits collected in 26,577 crossbred Italian heavy pigs. Genetic correlations were estimated in bivariate Bayesian analyses including one BT trait and one production or ham quality trait at a time. Heritability of androstenone, skatole, and indole was 0.41, 0.49, and 0.37, respectively. A moderate negative correlation between skatole and carcass yield (-0.40), and between all BT compounds and backfat (from -0.26 to -0.55) was observed. Conversely, positive correlations (from 0.11 to 0.54) were found between skatole and ham fat thickness traits. Correlations between BT compounds and iodine number ranged from -0.07 (for androstenone) to -0.64 (for skatole), whereas those with PUFA ranged from -0.13 (for indole) to -0.33 (for skatole). Hence, reducing BT could decrease ham fat thickness and increase unsaturated fatty acids, with potential negative impacts on product quality.
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Affiliation(s)
| | | | - Valentina Bonfatti
- Department of Comparative Biomedicine and Food Science, University of Padova, Viale dell’Università 16, 35020 Legnaro, Italy; (S.F.); (P.C.)
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Funkhouser-Jones LJ, Xu R, Wilke G, Fu Y, Schriefer LA, Makimaa H, Rodgers R, Kennedy EA, VanDussen KL, Stappenbeck TS, Baldridge MT, Sibley LD. Microbiota-produced indole metabolites disrupt mitochondrial function and inhibit Cryptosporidium parvum growth. Cell Rep 2023; 42:112680. [PMID: 37384526 PMCID: PMC10530208 DOI: 10.1016/j.celrep.2023.112680] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 05/08/2023] [Accepted: 06/07/2023] [Indexed: 07/01/2023] Open
Abstract
Cryptosporidiosis is a leading cause of life-threatening diarrhea in young children in resource-poor settings. To explore microbial influences on susceptibility, we screened 85 microbiota-associated metabolites for their effects on Cryptosporidium parvum growth in vitro. We identify eight inhibitory metabolites in three main classes: secondary bile salts/acids, a vitamin B6 precursor, and indoles. Growth restriction of C. parvum by indoles does not depend on the host aryl hydrocarbon receptor (AhR) pathway. Instead, treatment impairs host mitochondrial function and reduces total cellular ATP, as well as directly reducing the membrane potential in the parasite mitosome, a degenerate mitochondria. Oral administration of indoles, or reconstitution of the gut microbiota with indole-producing bacteria, delays life cycle progression of the parasite in vitro and reduces the severity of C. parvum infection in mice. Collectively, these findings indicate that microbiota metabolites impair mitochondrial function and contribute to colonization resistance to Cryptosporidium infection.
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Affiliation(s)
- Lisa J Funkhouser-Jones
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Rui Xu
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Georgia Wilke
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Yong Fu
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Lawrence A Schriefer
- Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Heyde Makimaa
- Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Rachel Rodgers
- Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Elizabeth A Kennedy
- Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Kelli L VanDussen
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Thaddeus S Stappenbeck
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Megan T Baldridge
- Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - L David Sibley
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA.
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Al-Wahaibi LH, Mohammed AF, Abdelrahman MH, Trembleau L, Youssif BGM. Design, Synthesis, and Biological Evaluation of Indole-2-carboxamides as Potential Multi-Target Antiproliferative Agents. Pharmaceuticals (Basel) 2023; 16:1039. [PMID: 37513950 PMCID: PMC10385579 DOI: 10.3390/ph16071039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/15/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
A small set of indole-based derivatives, IV and Va-I, was designed and synthesized. Compounds Va-i demonstrated promising antiproliferative activity, with GI50 values ranging from 26 nM to 86 nM compared to erlotinib's 33 nM. The most potent antiproliferative derivatives-Va, Ve, Vf, Vg, and Vh-were tested for EGFR inhibitory activity. Compound Va demonstrated the highest inhibitory activity against EGFR with an IC50 value of 71 ± 06 nM, which is higher than the reference erlotinib (IC50 = 80 ± 05 nM). Compounds Va, Ve, Vf, Vg, and Vh were further tested for BRAFV600E inhibitory activity. The tested compounds inhibited BRAFV600E with IC50 values ranging from 77 nM to 107 nM compared to erlotinib's IC50 value of 60 nM. The inhibitory activity of compounds Va, Ve, Vf, Vg, and Vh against VEGFR-2 was also determined. Finally, in silico docking experiments attempted to investigate the binding mode of compounds within the active sites of EGFR, BRAFV600E, and VEGFR-2.
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Affiliation(s)
- Lamya H Al-Wahaibi
- Department of Chemistry, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11564, Saudi Arabia
| | - Anber F Mohammed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Mostafa H Abdelrahman
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut 71234, Egypt
| | - Laurent Trembleau
- School of Natural and Computing Sciences, University of Aberdeen, Meston Building, Aberdeen AB24 3UE, UK
| | - Bahaa G M Youssif
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
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66
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Barresi E, Robello M, Baglini E, Poggetti V, Viviano M, Salerno S, Da Settimo F, Taliani S. Indol-3-ylglyoxylamide as Privileged Scaffold in Medicinal Chemistry. Pharmaceuticals (Basel) 2023; 16:997. [PMID: 37513909 PMCID: PMC10386336 DOI: 10.3390/ph16070997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/05/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
In recent years, indolylglyoxylamide-based derivatives have received much attention due to their application in drug design and discovery, leading to the development of a wide array of compounds that have shown a variety of pharmacological activities. Combining the indole nucleus, already validated as a "privileged structure," with the glyoxylamide function allowed for an excellent template to be obtained that is suitable to a great number of structural modifications aimed at permitting interaction with specific molecular targets and producing desirable therapeutic effects. The present review provides insight into how medicinal chemists have elegantly exploited the indolylglyoxylamide moiety to obtain potentially useful drugs, with a particular focus on compounds exhibiting activity in in vivo models or reaching clinical trials. All in all, this information provides exciting new perspectives on existing data that can be useful in further design of indolylglyoxylamide-based molecules with interesting pharmacological profiles. The aim of this report is to present an update of collection data dealing with the employment of this moiety in the rational design of compounds that are able to interact with a specific target, referring to the last 20 years.
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Affiliation(s)
- Elisabetta Barresi
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Marco Robello
- Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Emma Baglini
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Valeria Poggetti
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Monica Viviano
- Department of Pharmacy, University of Salerno, 84084 Fisciano, Italy
| | - Silvia Salerno
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Federico Da Settimo
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Sabrina Taliani
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
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67
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Mendogralo EY, Nesterova LY, Nasibullina ER, Shcherbakov RO, Tkachenko AG, Sidorov RY, Sukonnikov MA, Skvortsov DA, Uchuskin MG. The Synthesis and Biological Evaluation of 2-(1 H-Indol-3-yl)quinazolin-4(3 H)-One Derivatives. Molecules 2023; 28:5348. [PMID: 37513221 PMCID: PMC10384628 DOI: 10.3390/molecules28145348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/03/2023] [Accepted: 07/08/2023] [Indexed: 07/30/2023] Open
Abstract
The treatment of many bacterial diseases remains a significant problem due to the increasing antibiotic resistance of their infectious agents. Among others, this is related to Staphylococcus aureus, especially methicillin-resistant S. aureus (MRSA) and Mycobacterium tuberculosis. In the present article, we report on antibacterial compounds with activity against both S. aureus and MRSA. A straightforward approach to 2-(1H-indol-3-yl)quinazolin-4(3H)-one and their analogues was developed. Their structural and functional relationships were also considered. The antimicrobial activity of the synthesized compounds against Mycobacterium tuberculosis H37Rv, S. aureus ATCC 25923, MRSA ATCC 43300, Candida albicans ATCC 10231, and their role in the inhibition of the biofilm formation of S. aureus were reported. 2-(5-Iodo-1H-indol-3-yl)quinazolin-4(3H)-one (3k) showed a low minimum inhibitory concentration (MIC) of 0.98 μg/mL against MRSA. The synthesized compounds were assessed via molecular docking for their ability to bind long RSH (RelA/SpoT homolog) proteins using mycobacterial and streptococcal (p)ppGpp synthetase structures as models. The cytotoxic activity of some synthesized compounds was studied. Compounds 3c, f, g, k, r, and 3z displayed significant antiproliferative activities against all the cancer cell lines tested. Indolylquinazolinones 3b, 3e, and 3g showed a preferential suppression of the growth of rapidly dividing A549 cells compared to slower growing fibroblasts of non-tumor etiology.
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Affiliation(s)
- Elena Y Mendogralo
- Department of Chemistry, Perm State University, Bukireva St. 15, 614990 Perm, Russia
| | - Larisa Y Nesterova
- Department of Chemistry, Perm State University, Bukireva St. 15, 614990 Perm, Russia
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Goleva St. 13, 614081 Perm, Russia
| | | | - Roman O Shcherbakov
- Department of Chemistry, Perm State University, Bukireva St. 15, 614990 Perm, Russia
| | - Alexander G Tkachenko
- Department of Chemistry, Perm State University, Bukireva St. 15, 614990 Perm, Russia
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Goleva St. 13, 614081 Perm, Russia
| | - Roman Y Sidorov
- Department of Chemistry, Perm State University, Bukireva St. 15, 614990 Perm, Russia
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Goleva St. 13, 614081 Perm, Russia
| | - Maxim A Sukonnikov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Dmitry A Skvortsov
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia
| | - Maxim G Uchuskin
- Department of Chemistry, Perm State University, Bukireva St. 15, 614990 Perm, Russia
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68
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Cadelis MM, Kim J, Rouvier F, Gill ES, Fraser K, Bourguet-Kondracki ML, Brunel JM, Copp BR. Exploration of Bis-Cinnamido-Polyamines as Intrinsic Antimicrobial Agents and Antibiotic Enhancers. Biomolecules 2023; 13:1087. [PMID: 37509123 PMCID: PMC10377643 DOI: 10.3390/biom13071087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/26/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
The marine natural product ianthelliformisamine C is a bis-cinnamido substituted spermine derivative that exhibits intrinsic antimicrobial properties and can enhance the action of doxycycline towards the Gram-negative bacterium Pseudomonas aeruginosa. As part of a study to explore the structure-activity requirements of these activities, we have synthesized a set of analogues that vary in the presence/absence of methoxyl group and bromine atoms and in the polyamine chain length. Intrinsic antimicrobial activity towards Staphylococcus aureus, methicillin-resistant S. aureus (MRSA) and the fungus Cryptococcus neoformans was observed for only the longest polyamine chain examples of non-brominated analogues while all examples bearing either one or two bromine atoms were active. Weak to no activity was typically observed towards Gram-negative bacteria, with exceptions being the longest polyamine chain examples 13f, 14f and 16f against Escherichia coli (MIC 1.56, 7.2 and 5.3 µM, respectively). Many of these longer polyamine-chain analogues also exhibited cytotoxic and/or red blood cell hemolytic properties, diminishing their potential as antimicrobial lead compounds. Two of the non-toxic, non-halogenated analogues, 13b and 13d, exhibited a strong ability to enhance the action of doxycycline against P. aeruginosa, with >64-fold and >32-fold enhancement, respectively. These results suggest that any future efforts to optimize the antibiotic-enhancing properties of cinnamido-polyamines should explore a wider range of aromatic ring substituents that do not include bromine or methoxyl groups.
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Affiliation(s)
- Melissa M Cadelis
- Department of Molecular Medicine and Pathology, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Jisoo Kim
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Florent Rouvier
- Membranes et Cibles Therapeutiques (MCT), SSA, INSERM, Aix-Marseille Universite, 27 bd Jean Moulin, 13385 Marseille, France
| | - Evangelene S Gill
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Kyle Fraser
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Marie-Lise Bourguet-Kondracki
- Laboratoire Molécules de Communication et Adaptation des Micro-Organismes, UMR 7245 CNRS, Muséum National d'Histoire Naturelle, 57 Rue Cuvier (C.P. 54), 75005 Paris, France
| | - Jean Michel Brunel
- Membranes et Cibles Therapeutiques (MCT), SSA, INSERM, Aix-Marseille Universite, 27 bd Jean Moulin, 13385 Marseille, France
| | - Brent R Copp
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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Morgan EW, Dong F, Annalora AJ, Murray IA, Wolfe T, Erickson R, Gowda K, Amin SG, Petersen KS, Kris-Etherton PM, Marcus CB, Walk ST, Patterson AD, Perdew GH. Contribution of Circulating Host and Microbial Tryptophan Metabolites Toward Ah Receptor Activation. Int J Tryptophan Res 2023; 16:11786469231182510. [PMID: 37441265 PMCID: PMC10334013 DOI: 10.1177/11786469231182510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 05/31/2023] [Indexed: 07/15/2023] Open
Abstract
The aryl hydrocarbon receptor (AHR) is a ligand activated transcription factor that plays an integral role in homeostatic maintenance by regulating cellular functions such as cellular differentiation, metabolism, barrier function, and immune response. An important but poorly understood class of AHR activators are compounds derived from host and bacterial metabolism of tryptophan. The commensal bacteria of the gut microbiome are major producers of tryptophan metabolites known to activate the AHR, while the host also produces AHR activators through tryptophan metabolism. We used targeted mass spectrometry-based metabolite profiling to determine the presence and metabolic source of these metabolites in the sera of conventional mice, germ-free mice, and humans. Surprisingly, sera concentrations of many tryptophan metabolites are comparable between germ-free and conventional mice. Therefore, many major AHR-activating tryptophan metabolites in mouse sera are produced by the host, despite their presence in feces and mouse cecal contents. Here we present an investigation of AHR activation using a complex mixture of tryptophan metabolites to examine the biological relevance of circulating tryptophan metabolites. AHR activation is rarely studied in the context of a mixture at relevant concentrations, as we present here. The AHR activation potentials of individual and pooled metabolites were explored using cell-based assays, while ligand binding competition assays and ligand docking simulations were used to assess the detected metabolites as AHR agonists. The physiological and biomedical relevance of the identified metabolites was investigated in the context of a cell-based model for rheumatoid arthritis. We present data that reframe AHR biology to include the presence of a mixture of ubiquitous tryptophan metabolites, improving our understanding of homeostatic AHR activity and models of AHR-linked diseases.
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Affiliation(s)
- Ethan W Morgan
- Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, USA
| | - Fangcong Dong
- Department of Veterinary and Biomedical Sciences and the Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, USA
| | - Andrew J Annalora
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, USA
| | - Iain A Murray
- Department of Veterinary and Biomedical Sciences and the Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, USA
| | - Trenton Wolfe
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, USA
| | - Reece Erickson
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, USA
| | - Krishne Gowda
- Department of Pharmacology Penn State College of Medicine, Hershey, USA
| | - Shantu G Amin
- Department of Pharmacology Penn State College of Medicine, Hershey, USA
| | - Kristina S Petersen
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, USA
| | - Penny M Kris-Etherton
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, USA
| | - Craig B Marcus
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, USA
| | - Seth T Walk
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, USA
| | - Andrew D Patterson
- Department of Veterinary and Biomedical Sciences and the Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, USA
| | - Gary H Perdew
- Department of Veterinary and Biomedical Sciences and the Center for Molecular Toxicology and Carcinogenesis, The Pennsylvania State University, University Park, USA
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70
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Gallego-Yerga L, Chiliquinga AJ, Peláez R. Novel Tetrazole Derivatives Targeting Tubulin Endowed with Antiproliferative Activity against Glioblastoma Cells. Int J Mol Sci 2023; 24:11093. [PMID: 37446273 DOI: 10.3390/ijms241311093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 06/28/2023] [Accepted: 06/30/2023] [Indexed: 07/15/2023] Open
Abstract
Increasing awareness of the structure of microtubules has made tubulin a relevant target for the research of novel chemotherapies. Furthermore, the particularly high sensitivity of glioblastoma multiforme (GBM) cells to microtubule disruption could open new doors in the search for new anti-GBM treatments. However, the difficulties in developing potent anti-tubulin drugs endowed with improved pharmacokinetic properties necessitates the expansion of medicinal chemistry campaigns. The application of an ensemble pharmacophore screening methodology helped to optimize this process, leading to the development of a new tetrazole-based tubulin inhibitor. Considering this scaffold, we have synthesized a new family of tetrazole derivatives that achieved remarkable antimitotic effects against a broad panel of cancer cells, especially against GBM cells, showing high selectivity in comparison with non-tumor cells. The compounds also exerted high aqueous solubility and were demonstrated to not be substrates of efflux pumps, thus overcoming the main limitations that are usually associated with tubulin binding agents. Tubulin polymerization assays, immunofluorescence experiments, and flow cytometry studies demonstrated that the compounds target tubulin and arrest cells at the G2/M phase followed by induction of apoptosis. The docking experiments agreed with the proposed interactions at the colchicine site and explained the structure-activity relationships.
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Affiliation(s)
- Laura Gallego-Yerga
- Laboratorio de Química Orgánica y Farmacéutica, Departamento de Ciencias Farmacéuticas, Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
- Centro de Investigación de Enfermedades Tropicales de la Universidad de Salamanca (CIETUS), Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
| | | | - Rafael Peláez
- Laboratorio de Química Orgánica y Farmacéutica, Departamento de Ciencias Farmacéuticas, Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
- Centro de Investigación de Enfermedades Tropicales de la Universidad de Salamanca (CIETUS), Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Spain
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71
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Aung SH, Abeyrathne EDNS, Hossain MA, Jung DY, Kim HC, Jo C, Nam KC. Comparative Quality Traits, Flavor Compounds, and Metabolite Profile of Korean Native Black Goat Meat. Food Sci Anim Resour 2023; 43:639-658. [PMID: 37483995 PMCID: PMC10359836 DOI: 10.5851/kosfa.2023.e25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/05/2023] [Accepted: 06/09/2023] [Indexed: 07/25/2023] Open
Abstract
Although goat meat has several health benefits than other red meats but comsumers reluctant it due to its unpleasant flavor. This study aimed to investigate the odorant of goat meat as well as compare the quality traits of meat regarding sex status. The loin meats [non-castrated male (NCM), castrated male (CM), and female (FM)] were collected and stored at 4°C in a laboratory refrigerator and analyzed on the 1st, 5th, and 8th consecutive days. The moisture content was the lowest and the protein content was highest in FM (p<0.05). Fat and ash content in NCM and FM were similar while lowest in CM. The CIE L* was significantly higher in NCM, but there were no significant differences of CIE a* and CIE b* within groups at initial day. The color intensity increased on the 5th storage day and decreased again after the 8th storage day, except in NCM. NCM displayed the highest thiobarbituric acid reactive substances value (p<0.05), whereas CM displayed a higher pH value than other groups throughout the storage period. Indole levels were the highest in NCM (0.031 mg/kg); however, skatole levels were not significant differences across all treatments (p>0.05). No significant difference was observed in the fatty acid composition between NCM and CM (p>0.05), whereas a significant difference was observed in FM (p<0.05). Most of the water-soluble metabolites showed significant differences between sexes. Overall, sex status effects on quality properties of meat and castration can improve the overall sensory acceptance by reducing goaty flavor of Korean native black goat meat.
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Affiliation(s)
- Shine Htet Aung
- Department of Animal Science and
Technology, Sunchon National University, Suncheon 57922,
Korea
- Department of Zoology, Kyaukse
University, Kyaukse 05151, Myanmar
| | - Edirisinghe Dewage Nalaka Sandun Abeyrathne
- Department of Animal Science and
Technology, Sunchon National University, Suncheon 57922,
Korea
- Department of Animal Science, Uva Wellassa
University, Badulla 90000, Sri Lanka
| | - Md. Altaf Hossain
- Department of Animal Science and
Technology, Sunchon National University, Suncheon 57922,
Korea
- Department of Applied Food Science and
Nutrition, Chattogram Veterinary and Animal Sciences
University, Chattogram 4225, Bangladesh
| | - Doo Yeon Jung
- Department of Agricultural Biotechnology,
Center for Food and Bioconvergence, and Research Institute of Agriculture
and Life Science, Seoul National University, Seoul 08826,
Korea
| | - Hyun Cheol Kim
- Department of Agricultural Biotechnology,
Center for Food and Bioconvergence, and Research Institute of Agriculture
and Life Science, Seoul National University, Seoul 08826,
Korea
| | - Cheorun Jo
- Department of Agricultural Biotechnology,
Center for Food and Bioconvergence, and Research Institute of Agriculture
and Life Science, Seoul National University, Seoul 08826,
Korea
| | - Ki-Chang Nam
- Department of Animal Science and
Technology, Sunchon National University, Suncheon 57922,
Korea
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72
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Shah M, Kumar A, Singh AK, Singh H, Narasimhan B, Kumar P. In Silico Studies of Indole Derivatives as Antibacterial Agents. J Pharmacopuncture 2023; 26:147-157. [PMID: 37405113 PMCID: PMC10315882 DOI: 10.3831/kpi.2023.26.2.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/02/2022] [Accepted: 12/12/2022] [Indexed: 07/06/2023] Open
Abstract
Objectives Molecular docking and QSAR studies of indole derivatives as antibacterial agents. Methods In this study, we used a multiple linear regressions (MLR) approach to construct a 2D quantitative structure activity relationship of 14 reported indole derivatives. It was performed on the reported antibacterial activity data of 14 compounds based on theoretical chemical descriptors to construct statistical models that link structural properties of indole derivatives to antibacterial activity. We have also performed molecular docking studies of same compounds by using Maestro module of Schrodinger. A set the molecular descriptors like hydrophobic, geometric, electronic and topological characters were calculated to represent the structural features of compounds. The conventional antibiotics sultamicillin and ampicillin were not used in the model development since their structures are different from those of the created compounds. Biological activity data was first translated into pMIC values (i.e. -log MIC) and used as a dependent variable in QSAR investigation. Results Compounds with high electronic energy and dipole moment were effective antibacterial agents against S. aureus, indole derivatives with lower κ2 values were excellent antibacterial agents against MRSA standard strain, and compounds with lower R value and a high 2χv value were effective antibacterial agents against MRSA isolate. Conclusion Compounds 12 and 2 showed better binding score against penicillin binding protein 2 and penicillin binding protein 2a respectively.
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Affiliation(s)
- Mridul Shah
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda, India
| | - Adarsh Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda, India
| | - Ankit Kumar Singh
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda, India
| | - Harshwardhan Singh
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda, India
| | | | - Pradeep Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Ghudda, Bathinda, India
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73
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Raza AR, Rubab SL, Ashfaq M, Altaf Y, Tahir MN, Rehman MFU, Aziz T, Alharbi M, Alasmari AF. Evaluation of Antimicrobial, Anticholinesterase Potential of Indole Derivatives and Unexpectedly Synthesized Novel Benzodiazine: Characterization, DFT and Hirshfeld Charge Analysis. Molecules 2023; 28:5024. [PMID: 37446687 DOI: 10.3390/molecules28135024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/07/2023] [Accepted: 06/15/2023] [Indexed: 07/15/2023] Open
Abstract
The pharmacological effectiveness of indoles, benzoxazepines and benzodiazepines initiated our synthesis of indole fused benoxazepine/benzodiazepine heterocycles, along with enhanced biological usefulness of the fused rings. Activated indoles 5, 6 and 7 were synthesized using modified Bischler indole synthesis rearrangement. Indole 5 was substituted with the trichloroacetyl group at the C7 position, yielding 8, exclusively due to the increased nucleophilic character of C7. When trichloroacylated indole 8 was treated with basified ethanol or excess amminia, indole acid 9 and amide 10 were yielded, respectively. Indole amide 10 was expected to give indole fused benoxazepine/benzodiazepine 11a/11b on treatment with alpha halo ester followed by a coupling agent, but when the reaction was tried, an unexpectedly rearranged novel product, 1,3-bezodiazine 12, was obtained. The synthetic compounds were screened for anticholinesterase and antibacterial potential; results showed all products to be very important candidates for both activities, and their potential can be explored further. In addition, 1,3-bezodiazine 12 was explored by DFT studies, Hirshfeld surface charge analysis and structural insight to obrain a good picture of the structure and reactivity of the products for the design of derivatised drugs from the novel compound.
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Affiliation(s)
- Abdul Rauf Raza
- Institute of Chemistry, Ibn e Sina Block, University of Sargodha, Sargodha 40100, Pakistan
| | - Syeda Laila Rubab
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore 54770, Pakistan
| | - Muhammad Ashfaq
- Department of Physics, University of Sargodha, Sargodha 40100, Pakistan
| | - Yasir Altaf
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore 54770, Pakistan
- School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington 6140, New Zealand
| | | | | | - Tariq Aziz
- Department of Agriculture, University of Ioannina, 471 32 Arta, Greece
| | - Metab Alharbi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abdullah F Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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74
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Russo E, Grondona C, Brullo C, Spallarossa A, Villa C, Tasso B. Indole Antitumor Agents in Nanotechnology Formulations: An Overview. Pharmaceutics 2023; 15:1815. [PMID: 37514002 PMCID: PMC10385756 DOI: 10.3390/pharmaceutics15071815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/19/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
The indole heterocycle represents one of the most important scaffolds in medicinal chemistry and is shared among a number of drugs clinically used in different therapeutic areas. Due to its varied biological activities, high unique chemical properties and significant pharmacological behaviors, indole derivatives have drawn considerable interest in the last decade as antitumor agents active against different types of cancers. The research of novel antiproliferative drugs endowed with enhanced efficacy and reduced toxicity led to the approval by U.S. Food and Drug Administration of the indole-based anticancer agents Sunitinib, Nintedanib, Osimertinib, Panobinostat, Alectinib and Anlotinib. Additionally, new drug delivery systems have been developed to protect the active principle from degradation and to direct the drug to the specific site for clinical use, thus reducing its toxicity. In the present work is an updated review of the recently approved indole-based anti-cancer agents and the nanotechnology systems developed for their delivery.
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Affiliation(s)
- Eleonora Russo
- Section of Medicinal and Cosmetic Chemistry, Department of Pharmacy, University of Genova, Viale Benedetto XV, 3, 16132 Genova, Italy
| | - Carola Grondona
- Section of Medicinal and Cosmetic Chemistry, Department of Pharmacy, University of Genova, Viale Benedetto XV, 3, 16132 Genova, Italy
| | - Chiara Brullo
- Section of Medicinal and Cosmetic Chemistry, Department of Pharmacy, University of Genova, Viale Benedetto XV, 3, 16132 Genova, Italy
| | - Andrea Spallarossa
- Section of Medicinal and Cosmetic Chemistry, Department of Pharmacy, University of Genova, Viale Benedetto XV, 3, 16132 Genova, Italy
| | - Carla Villa
- Section of Medicinal and Cosmetic Chemistry, Department of Pharmacy, University of Genova, Viale Benedetto XV, 3, 16132 Genova, Italy
| | - Bruno Tasso
- Section of Medicinal and Cosmetic Chemistry, Department of Pharmacy, University of Genova, Viale Benedetto XV, 3, 16132 Genova, Italy
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75
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Abstract
Escherichia coli is a Gram-negative commensal bacterium of the normal microbiota of humans and animals. However, several E. coli strains are opportunistic pathogens responsible for severe bacterial infections including gastrointestinal and urinary tract infections. Due to the emergence of multidrug-resistant serotypes that can cause a wide spectrum of diseases, E. coli is considered one of the most troublesome human pathogens worldwide. Therefore, a more thorough understanding of its virulence control mechanisms is essential for the development of new anti-pathogenic strategies. Numerous bacteria rely on a cell density-dependent communication system known as quorum sensing (QS) to regulate several bacterial functions, including the expression of virulence factors. The QS systems described for E. coli include the orphan SdiA regulator, an autoinducer-2 (AI-2), an autoinducer-3 (AI-3) system, and indole, which allow E. coli to establish different communication processes to sense and respond to the surrounding environment. This review aims to summarise the current knowledge of the global QS network in E. coli and its influence on virulence and pathogenesis. This understanding will help to improve anti-virulence strategies with the E. coli QS network in focus.
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Affiliation(s)
- Celia Mayer
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- Laboratorio de Referencia de E. coli, FIDIS - Instituto de Investigación Sanitaria de Santiago de Compostela, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Anabela Borges
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - Saskia-Camille Flament-Simon
- Laboratorio de Referencia de E. coli, FIDIS - Instituto de Investigación Sanitaria de Santiago de Compostela, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Manuel Simões
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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76
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Karanjule N, Hayashi N, Suzuki S, Tsuda T, Tokumaru E, Tanaka K, Kimoto H, Domon Y, Takahashi S, Kubota K, Kitano Y, Yokoyama T, Koishi R, Fujiwara C, Inaba S, Asano D, Sakakura T, Takasuna K, Shinozuka T. N-Aryl Indoles as a Novel Class of Potent Na V1.7 Inhibitors. ACS Med Chem Lett 2023; 14:788-793. [PMID: 37312847 PMCID: PMC10258897 DOI: 10.1021/acsmedchemlett.3c00079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 05/18/2023] [Indexed: 06/15/2023] Open
Abstract
A novel class of potent NaV1.7 inhibitors has been discovered. The replacement of diaryl ether in compound I was investigated to enhance mouse NaV1.7 inhibitory activity, which resulted in the discovery of N-aryl indoles. The introduction of the 3-methyl group is crucial for high NaV1.7 in vitro potency. The adjustment of lipophilicity led to the discovery of 2e. Compound 2e (DS43260857) demonstrated high in vitro potencies against both human and mouse NaV1.7 with high selectivity over NaV1.1, NaV1.5, and hERG. In vivo evaluations revealed 2e demonstrating potent efficacy in PSL mice with excellent pharmacokinetics.
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Affiliation(s)
- Narayan Karanjule
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Noriyuki Hayashi
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Sayaka Suzuki
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Toshifumi Tsuda
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Eri Tokumaru
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Kyosuke Tanaka
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Hiroko Kimoto
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Yuki Domon
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Sakiko Takahashi
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Kazufumi Kubota
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Yutaka Kitano
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Tomihisa Yokoyama
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Ryuta Koishi
- Daiichi
Sankyo RD Novare Co., Ltd., 1-16-13, Kitakasai, Edogawa-ku, Tokyo 134-8630, Japan
| | - Chie Fujiwara
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Shinichi Inaba
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Daigo Asano
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Tomoko Sakakura
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Kiyoshi Takasuna
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
| | - Tsuyoshi Shinozuka
- Daiichi
Sankyo Co., Ltd., 1-2-58 Hiromachi, Shinagawa-ku, Tokyo 140-8710, Japan
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77
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Januário MAP, de Souza DP, Zukerman-Schpector J, Corrêa AG. Rh(III)-Catalyzed C-2 Alkylation of Indoles followed by a Post-Synthetic Modification via the Ugi Reaction. ChemistryOpen 2023; 12:e202300070. [PMID: 37287423 DOI: 10.1002/open.202300070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/09/2023] [Indexed: 06/09/2023] Open
Abstract
Indole derivatives substituted at the C-2 position have shown important biological activities. Due to these properties, several methods have been described for the preparation of structurally diverse indoles. In this work, we have synthesized highly functionalized indole derivatives via Rh(III)-catalyzed C-2 alkylation with nitroolefins. Under the optimized condition, 23 examples were prepared with 39-80 % yield. Moreover, the nitro compounds were reduced and submitted to the Ugi four-component reaction, furnishing a series of new indole-peptidomimetics in moderate to good overall yields.
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Affiliation(s)
- Marcelo Augusto Pereira Januário
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905, São Carlos - SP, Brazil
| | - Demetrius P de Souza
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905, São Carlos - SP, Brazil
| | | | - Arlene G Corrêa
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905, São Carlos - SP, Brazil
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78
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Cadelis MM, Liu T, Sue K, Rouvier F, Bourguet-Kondracki ML, Brunel JM, Copp BR. Structure-Activity Relationship Studies of Indolglyoxyl-Polyamine Conjugates as Antimicrobials and Antibiotic Potentiators. Pharmaceuticals (Basel) 2023; 16:823. [PMID: 37375770 DOI: 10.3390/ph16060823] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
Antibiotic resistance is a growing global health threat, requiring urgent attention. One approach to overcome antibiotic resistance is to discover and develop new antibiotic enhancers, molecules that work with legacy antibiotics to enhance their efficacy against resistant bacteria. Our previous screening of a library of purified marine natural products and their synthetic analogues led to the discovery of an indolglyoxyl-spermine derivative that exhibited intrinsic antimicrobial properties and was also able to potentiate the action of doxycycline towards the difficult to treat, Gram-negative bacterium Pseudomonas aeruginosa. A set of analogues have now been prepared, exploring the influence of indole substitution at the 5- and 7- positions and length of the polyamine chain on biological activity. While limiting cytotoxicity and/or hemolytic activities were observed for many analogues, two 7-methyl substituted analogues (23b and 23c) were found to exhibit strong activity towards Gram-positive bacteria with no detectable cytotoxicity or hemolytic properties. Different molecular attributes were required for antibiotic enhancing properties, with one example identified, a 5-methoxy-substitiuted analogue (19a), as being a non-toxic, non-hemolytic enhancer of the action of two tetracycline antibiotics, doxycycline and minocycline, towards P. aeruginosa. These results provide further stimulation for the search for novel antimicrobials and antibiotic enhancers amongst marine natural products and related synthetic analogues.
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Affiliation(s)
- Melissa M Cadelis
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
- School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Tim Liu
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Kenneth Sue
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Florent Rouvier
- UMR MD1 "Membranes et Cibles Thérapeutiques", U1261 INSERM, Faculté de Pharmacie, Aix-Marseille Université, 27 bd Jean Moulin, 13385 Marseille, France
| | - Marie-Lise Bourguet-Kondracki
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS, Muséum National d'Histoire Naturelle, 57 Rue Cuvier (C.P. 54), 75005 Paris, France
| | - Jean Michel Brunel
- UMR MD1 "Membranes et Cibles Thérapeutiques", U1261 INSERM, Faculté de Pharmacie, Aix-Marseille Université, 27 bd Jean Moulin, 13385 Marseille, France
| | - Brent R Copp
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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79
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Son J, Wu Z, Dou J, Fujita H, Cao PLD, Liu Q, Lindsey JS. Tethered Indoxyl-Glucuronides for Enzymatically Triggered Cross-Linking. Molecules 2023; 28:molecules28104143. [PMID: 37241884 DOI: 10.3390/molecules28104143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Indoxyl-glucuronides, upon treatment with β-glucuronidase under physiological conditions, are well known to afford the corresponding indigoid dye via oxidative dimerization. Here, seven indoxyl-glucuronide target compounds have been prepared along with 22 intermediates. Of the target compounds, four contain a conjugatable handle (azido-PEG, hydroxy-PEG, or BCN) attached to the indoxyl moiety, while three are isomers that include a PEG-ethynyl group at the 5-, 6-, or 7-position. All seven target compounds have been examined in indigoid-forming reactions upon treatment with β-glucuronidase from two different sources and rat liver tritosomes. Taken together, the results suggest the utility of tethered indoxyl-glucuronides for use in bioconjugation chemistry with a chromogenic readout under physiological conditions.
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Affiliation(s)
- Juno Son
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA
| | - Zhiyuan Wu
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA
| | - Jinghuai Dou
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA
| | - Hikaru Fujita
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA
| | - Phuong-Lien Doan Cao
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA
| | - Qihui Liu
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA
| | - Jonathan S Lindsey
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA
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80
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Nakata Y, Fu J, Itoh H, Panthee S, Hamamoto H, Sekimizu K, Inoue M. Construction of Five Tryptophan Isomers and Application of the Isomers to Solid-Phase Total Syntheses of Lysocin E Derivatives. Chemistry 2023:e202301225. [PMID: 37198137 DOI: 10.1002/chem.202301225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/17/2023] [Accepted: 05/17/2023] [Indexed: 05/19/2023]
Abstract
Tryptophan (Trp) plays a unique role in peptides and proteins as its indole ring possesses an electron-rich character and an N1-H hydrogen-bond donor. Because of its non-rotationally symmetric structure, synthetic alterations of the orientation of the indole ring would modulate the intrinsic structures and functions of peptides and proteins. Here we developed synthetic routes to the five Trp isomers in which the C3-substitution of the indole ring was changed to the C2/4/5/6/7-substitutions, and applied the five monomers to Fmoc-based solid-phase peptide synthesis. Specifically, the five monomers were prepared via Negishi cross-coupling reactions of C2/4/5/6/7-iodoindoles. To demonstrate the applicability of the monomers to the solid-phase synthesis, the five Trp isomers of macrocyclic antibiotic lysocin E were selected as target molecules and synthesized through peptide elongation, on-resin macrocyclization, and global deprotection. The Trp isomers displayed markedly weaker antibacterial activity than the parent natural product, revealing the biological importance of the precise three-dimensional shape of the original Trp residue of lysocin E. The present methods for the preparation and application of these five Trp isomers provide a new strategy for analyzing and modifying the specific functions of numerous Trp-containing peptides and proteins beyond this study.
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Affiliation(s)
- Yosuke Nakata
- The University of Tokyo: Tokyo Daigaku, Graduate School of Pharmaceutical Sciences, JAPAN
| | - Junhao Fu
- The University of Tokyo: Tokyo Daigaku, Graduate School of Pharmaceutical Sciences, JAPAN
| | - Hiroaki Itoh
- The University of Tokyo: Tokyo Daigaku, Graduate School of Pharmaceutical Sciences, 7-3-1 Hongo, Bunkyo-ku, 113-0033, Tokyo, JAPAN
| | - Suresh Panthee
- Teikyo University: Teikyo Daigaku, Faculty of Pharma-Science, JAPAN
| | - Hiroshi Hamamoto
- Yamagata University: Yamagata Daigaku, Faculty of Medicine, JAPAN
| | | | - Masayuki Inoue
- The University of Tokyo, Graduate School of Pharmaceutical Sciences, 7-3-1 Hongo, Bunkyo-ku, 113-0033, Tokyo, JAPAN
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81
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Guo S, Zhou H, Huang X, Peng S, Li J, Ding B, Tao Y, Huang H. New glucosidated indole-quinazoline alkaloids from mangrove endophytic fungus Aspergillus fumigatus SAl12. Nat Prod Res 2023:1-6. [PMID: 37157883 DOI: 10.1080/14786419.2023.2209822] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Two new glucosidated indole-containing quinazoline alkaloids designated fumigatosides G (1) and H (2) were isolated from mangrove-derived fungus Aspergillus fumigatus SAl12, together with the known analogues fumigatoside B (3) and fumiquinazoline J (4). The planar structures of the new compounds were elucidated by HR-MS and NMR spectroscopic data analyses. The absolute configurations were determined by comparison of electronic circular dichroic (ECD) spectra with that of the known compound fumigatoside B and with the calculated ECD spectrum. All these indole-quinazoline compounds were tested for anti-bacterial and cytotoxic activities.
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Affiliation(s)
- Shili Guo
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Haiming Zhou
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xin Huang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Siyan Peng
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jiayi Li
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Bo Ding
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yiwen Tao
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Hongbo Huang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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82
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Liu T, Yao X, Zhang R, Wu T, Liu Z, Li D, Dong Q. Design, Synthesis and Biological Evaluation of Novel Indole-piperazine Derivatives as Antibacterial Agents. Bioorg Med Chem Lett 2023; 89:129320. [PMID: 37156392 DOI: 10.1016/j.bmcl.2023.129320] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/10/2023] [Accepted: 05/03/2023] [Indexed: 05/10/2023]
Abstract
Herein, a series of novel indole-piperazine derivatives were synthesized. Bioassay results showed the title compounds exhibited moderate to good bacteriostatic efficacy against the test Gram-positive bacteria and Gram-negative bacteria, including methicillin-resistant Staphylococcus aureus (MRSA). Among theses compounds, three remarkable compounds 8f, 9a, and 9h exhibited superior in vitro antibacterial profiles for anti- S. aureus and anti-MRSA to that of gentamicin. Hit compound 9a manifested a rapid bactericidal kinetic effect on MRSA,with no resistance observed after 19 days of sequential passaging. And 8 µg/mL of compound 9a displayed considerable post antibacterial effects to that of ciprofloxacin at the concentration of 2 µg/mL. Cytotoxic and ADMET studies indicated, to some extent, compounds 8f, 9a, and 9h were up to the standard for antibacterial drugs. These results suggest that indole/piperazine derivatives based on the title compounds can serve as a new scaffold for antimicrobial development.
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Affiliation(s)
- Ting Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, China
| | - Xiaofang Yao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, China
| | - Rongrong Zhang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, China
| | - Tianling Wu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, China
| | - Zhigang Liu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, China.
| | - Ding Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, China.
| | - Qingjian Dong
- Department of Nuclear Medicine and PET, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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83
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Ibrahim MS, Farag B, Y. Al-Humaidi J, Zaki MEA, Fathalla M, Gomha SM. Mechanochemical Synthesis and Molecular Docking Studies of New Azines Bearing Indole as Anticancer Agents. Molecules 2023; 28:3869. [PMID: 37175279 PMCID: PMC10180502 DOI: 10.3390/molecules28093869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 05/15/2023] Open
Abstract
The development of new approaches for the synthesis of new bioactive heterocyclic derivatives is of the utmost importance for pharmaceutical industry. In this regard, the present study reports the green synthesis of new benzaldazine and ketazine derivatives via the condensation of various carbonyl compounds (aldehydes and ketones with the 3-(1-hydrazineylideneethyl)-1H-indole using the grinding method with one drop of acetic acid). Various spectroscopic techniques were used to identify the structures of the synthesized derivatives. Furthermore, the anticancer activities of the reported azine derivatives were evaluated against colon, hepatocellular, and breast carcinoma cell lines using the MTT technique with doxorubicin as a reference medication. The findings suggested that the synthesized derivatives exhibited potential anti-tumor activities toward different cell lines. For example, 3c, 3d, 3h, 9, and 13 exhibited interesting activity with an IC50 value of 4.27-8.15 µM towards the HCT-116 cell line as compared to doxorubicin (IC50 = 5.23 ± 0.29 µM). In addition, 3c, 3d, 3h, 9, 11, and 13 showed excellent cytotoxic activities (IC50 = 4.09-9.05 µM) towards the HePG-2 cell line compared to doxorubicin (IC50 = 4.50 ± 0.20 µM), and 3d, 3h, 9, and 13 demonstrated high potency (IC50 = 6.19-8.39 µM) towards the breast cell line (MCF-7) as compared to the reference drug (IC50 = 4.17 ± 0.20 µM). The molecular interactions between derivatives 3a-h, 7, 9, 11, 13, and the CDK-5 enzyme (PDB ID: 3IG7) were studied further using molecular docking indicating a high level of support for the experimental results. Furthermore, the drug-likeness analysis of the reported derivatives indicated that derivative 9 (binding affinity = -8.34 kcal/mol) would have a better pharmacokinetics, drug-likeness, and oral bioavailability as compared to doxorubicin (-7.04 kcal/mol). These results along with the structure-activity relationship (SAR) of the reported derivatives will pave the way for the design of additional azines bearing indole with potential anticancer activities.
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Affiliation(s)
- Mohamed S. Ibrahim
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia; (M.S.I.); (M.F.)
| | - Basant Farag
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt;
| | - Jehan Y. Al-Humaidi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Magdi E. A. Zaki
- Department of Chemistry, Faculty of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia;
| | - Maher Fathalla
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia; (M.S.I.); (M.F.)
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of Science, Islamic University of Madinah, Madinah 42351, Saudi Arabia; (M.S.I.); (M.F.)
- Department of Chemistry, Faculty of Science, Cairo University, Cairo 12613, Egypt
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84
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Kralles ZT, Werner CA, Dai N. Overlooked Contribution of the Indole Moiety to the Formation of Haloacetonitrile Disinfection Byproducts. Environ Sci Technol 2023; 57:7074-7085. [PMID: 37079884 DOI: 10.1021/acs.est.3c01080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Haloacetonitriles (HANs) are a group of disinfection byproducts with high toxicity and frequent occurrence. Past studies have focused on the free amine groups, especially those in amino acids, as HAN precursors. This study reports, for the first time, that the indole moiety such as that in the tryptophan side chain is also a potent precursor for the most common HANs dichloroacetonitrile, bromochloroacetonitrile, and dibromoacetonitrile. 3-Indolepropionic acid, differing from tryptophan only in the absence of the free amine group, formed HANs at levels 57-76% of those by tryptophan at a halogen/nitrogen molar ratio of 10. Experiments with tryptophan-(amino-15N) showed that the indole contributed to 28-51% of the HANs formed by tryptophan. At low oxidant excess (e.g., halogen/precursor = 5), 3-indolepropionic acid even formed more HANs than Trp by 3.5-, 2.5-, and 1.8-fold during free chlorination, free bromination, and chlorination in the presence of bromide (0.6 mg/L), respectively. Indole's HAN formation pathway was investigated by exploring the chlorination/bromination products of 3-indolepropionic acid using liquid chromatography-orbitrap high-resolution mass spectrometry. A total of 22 intermediates were detected, including pyrrole ring-opening products with an N-formyl group, 2-substituted anilines with different hydroxyl/halogen substitutions, and an intermediate with a postulated non-aromatic ring structure.
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Affiliation(s)
- Zachary T Kralles
- Department of Civil, Structural and Environmental Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Christian A Werner
- Department of Civil, Structural and Environmental Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Ning Dai
- Department of Civil, Structural and Environmental Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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85
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Duizer C, de Zoete MR. The Role of Microbiota-Derived Metabolites in Colorectal Cancer. Int J Mol Sci 2023; 24:8024. [PMID: 37175726 PMCID: PMC10178193 DOI: 10.3390/ijms24098024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/25/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
The impact of bacterial members of the microbiota on the development of colorectal cancer (CRC) has become clear in recent years. However, exactly how bacteria contribute to the development of cancer is often still up for debate. The impact of bacteria-derived metabolites, which can influence the development of CRC either in a promoting or inhibiting manner, is undeniable. Here, we discuss the effects of the most well-studied bacteria-derived metabolites associated with CRC, including secondary bile acids, short-chain fatty acids, trimethylamine-N-oxide and indoles. We show that the effects of individual metabolites on CRC development are often nuanced and dose- and location-dependent. In the coming years, the array of metabolites involved in CRC development will undoubtedly increase further, which will emphasize the need to focus on causation and mechanisms and the clearly defined roles of bacterial species within the microbiota.
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Affiliation(s)
| | - Marcel R. de Zoete
- Department of Medical Microbiology, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
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86
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Anderson GM. Determination of Indolepropionic Acid and Related Indoles in Plasma, Plasma Ultrafiltrate, and Saliva. Metabolites 2023; 13:metabo13050602. [PMID: 37233643 DOI: 10.3390/metabo13050602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
The microbial metabolite indolepropionic acid (IPA) and related indolic metabolites, including indolecarboxylic acid (ICA), indolelactic acid (ILA), indoleacetic acid (IAA), indolebutyric acid (IBA), indoxylsulfate (ISO4), and indole, were determined in human plasma, plasma ultrafiltrate (UF), and saliva. The compounds were separated on a 150 × 3 mm column of 3 μm Hypersil C18 eluted with a mobile phase of 80% pH 5 0.01 M sodium acetate containing 1.0 g/L of tert-butylammonium chloride/20% acetonitrile and then detected fluorometrically. Levels of IPA in human plasma UF and of ILA in saliva are reported for the first time. The determination of IPA in plasma UF enables the first report of free plasma IPA, the presumed physiologically active pool of this important microbial metabolite of tryptophan. Plasma and salivary ICA and IBA were not detected, consistent with the absence of any prior reported values. Observed levels or limits of detection for other indolic metabolites usefully supplement limited prior reports.
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Affiliation(s)
- George M Anderson
- Department of Laboratory Medicine, The Child Study Center, Yale University School of Medicine, 230 S. Frontage Rd., New Haven, CT 06519, USA
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87
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Potapov KV, Novikov RA, Novikov MA, Solyev PN, Tomilov YV, Kochetkov SN, Makarov AA, Mitkevich VA. Synthesis of the Indole-Based Inhibitors of Bacterial Cystathionine γ-Lyase NL1-NL3. Molecules 2023; 28:molecules28083568. [PMID: 37110802 PMCID: PMC10147042 DOI: 10.3390/molecules28083568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/04/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Bacterial cystathionine γ-lyase (bCSE) is the main producer of H2S in pathogenic bacteria such as Staphylococcus aureus, Pseudomonas aeruginosa, etc. The suppression of bCSE activity considerably enhances the sensitivity of bacteria to antibiotics. Convenient methods for the efficient synthesis of gram quantities of two selective indole-based bCSE inhibitors, namely (2-(6-bromo-1H-indol-1-yl)acetyl)glycine (NL1), 5-((6-bromo-1H-indol-1-yl)methyl)- 2-methylfuran-3-carboxylic acid (NL2), as well as a synthetic method for preparation 3-((6-(7-chlorobenzo[b]thiophen-2-yl)-1H-indol-1-yl)methyl)- 1H-pyrazole-5-carboxylic acid (NL3), have been developed. The syntheses are based on the use of 6-bromoindole as the main building block for all three inhibitors (NL1, NL2, and NL3), and the designed residues are assembled at the nitrogen atom of the 6-bromoindole core or by the substitution of the bromine atom in the case of NL3 using Pd-catalyzed cross-coupling. The developed and refined synthetic methods would be significant for the further biological screening of NL-series bCSE inhibitors and their derivatives.
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Affiliation(s)
- Konstantin V Potapov
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 32 Vavilov St., 119991 Moscow, Russia
- Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Avenue, 119991 Moscow, Russia
| | - Roman A Novikov
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 32 Vavilov St., 119991 Moscow, Russia
- Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Avenue, 119991 Moscow, Russia
- Biotechnology Department, Sirius University of Science and Technology, 1 Olympic Avenue, 354349 Sirius, Russia
| | - Maxim A Novikov
- Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Avenue, 119991 Moscow, Russia
| | - Pavel N Solyev
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 32 Vavilov St., 119991 Moscow, Russia
| | - Yury V Tomilov
- Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky Avenue, 119991 Moscow, Russia
| | - Sergey N Kochetkov
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 32 Vavilov St., 119991 Moscow, Russia
| | - Alexander A Makarov
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 32 Vavilov St., 119991 Moscow, Russia
| | - Vladimir A Mitkevich
- Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences, 32 Vavilov St., 119991 Moscow, Russia
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88
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Gulia K, Hassan AHE, Lenhard JR, Farahat AA. Escaping ESKAPE resistance: in vitro and in silico studies of multifunctional carbamimidoyl-tethered indoles against antibiotic-resistant bacteria. R Soc Open Sci 2023; 10:230020. [PMID: 37090961 PMCID: PMC10113819 DOI: 10.1098/rsos.230020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 03/24/2023] [Indexed: 05/03/2023]
Abstract
Combining the hybridization and repurposing strategies, six compounds from our in-house library and having a designed hybrid structure of MBX-1162, pentamidine and MMV688271 were repurposed as potential antibacterial agents. Among, compounds 1a and 1d elicited potential sub-µg ml-1 activity against the high-priority antibiotic-resistant Gram-positive members of ESKAPE bacteria as well as antibiotic-susceptible Gram-positive bacteria. Furthermore, they showed potential low µg ml-1 activity against the explored critical-priority antibiotic-resistant Gram-negative members of ESKAPE bacteria. In time-kill assay, compound 1a has effective 0.5 and 0.25 µg ml-1 antibacterial lethal concentrations against MRSA in exponential growth phase. In silico investigations predicted compounds 1a and 1d as inhibitors of the open conformation of undecaprenyl diphosphate synthase involved in bacterial isoprenoid synthesis. In addition, compounds 1a and 1d were predicted as inhibitors of NADPH-free but not NADPH-bound form of ketol-acid reductoisomerase and may also serve as potential B-DNA minor groove binders with possible differences in the molecular sequence recognition. Overall, compounds 1a and 1d are presented as multifunctional potential antibacterial agents for further development against high- and critical-priority Gram-positive and Gram-negative antibiotic-resistant ESKAPE bacterial pathogens as well as antibiotic-susceptible Gram-positive bacterial pathogens.
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Affiliation(s)
- Kanika Gulia
- Master of Pharmaceutical Sciences Program, California Northstate University, 9700 W Taron Dr., Elk Grove, CA 95757, USA
- College of Medicine, California Northstate University, 9700 W Taron Dr., Elk Grove, CA 95757, USA
| | - Ahmed H. E. Hassan
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Justin R. Lenhard
- Department of Clinical and Administrative Sciences, College of Pharmacy, California Northstate University, Elk Grove, CA 95757, USA
| | - Abdelbasset A. Farahat
- Master of Pharmaceutical Sciences Program, California Northstate University, 9700 W Taron Dr., Elk Grove, CA 95757, USA
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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89
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Li T, Lv M, Wen H, Du J, Wang Z, Zhang S, Xu H. Natural products in crop protection: thiosemicarbazone derivatives of 3-acetyl-N-benzyl indoles as antifungal agents and their mechanism of action. Pest Manag Sci 2023. [PMID: 36929618 DOI: 10.1002/ps.7457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Phytopathogenic fungi can cause a direct loss in economic value of agriculture. Especially Valsa mali Miyabe et Yamada, a devastating phytopathogenic disease especially threatening global apple production, is very difficult to control and manage. To discover new potential antifungal agents, a series of thiosemicarbazone derivatives of 3-acetyl-N-benzylindoles were prepared. Their antifungal activities were first tested against six typically phytopathogenic fungi including Curvularia lunata, Valsa mali, Alternaria alternate, Fusarium graminearum, Botrytis cinerea and Fusarium solani. Then their mechanism of action against V. mali was investigated. RESULTS Derivatives displayed potent antifungal activity against V. mali. Notably, 3-acetyl-N-benzylindole thiosemicarbazone (IV-1: EC50 : 0.59 μg mL-1 ), whose activity was comparable to that of a commercial fungicide carbendazim (EC50 : 0.33 μg mL-1 ), showed greater than 98-fold antifungal activity of the precursor indole. Moreover, compound IV-1 displayed good protective and therapeutic effects on apple Valsa canker disease. By scanning electron microscope (SEM) and RNA-Seq analysis, it was demonstrated that compound IV-1 can destroy the hyphal structure and regulate the homeostasis of metabolism of V. mali via the ergosterol biosynthesis and autophagy pathways. CONCLUSION 3-Acetyl-N-(un)substituted benzylindoles thiosemicarbazones (IV-1-IV-5) can be studied as leads for further structural modification as antifungal agents against V. mali. Particularly, these ergosterol biosynthesis and autophagy pathways can be used as target receptors for design of novel green pesticides for management of congeneric phytopathogenic fungi. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Tianze Li
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Min Lv
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Houpeng Wen
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Jiawei Du
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Zhen Wang
- College of Plant Protection, Northwest A&F University, Yangling, China
| | - Shaoyong Zhang
- Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Science, Huzhou University, Huzhou, China
| | - Hui Xu
- College of Plant Protection, Northwest A&F University, Yangling, China
- School of Marine Sciences, Ningbo University, Ningbo, China
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90
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Milne N, Sáez-Sáez J, Nielsen AM, Dyekjaer JD, Rago D, Kristensen M, Wulff T, Borodina I. Engineering Saccharomyces cerevisiae for the de novo Production of Halogenated Tryptophan and Tryptamine Derivatives. ChemistryOpen 2023; 12:e202200266. [PMID: 36929157 PMCID: PMC10068768 DOI: 10.1002/open.202200266] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/28/2023] [Indexed: 03/18/2023] Open
Abstract
The indole scaffold is a recurring structure in multiple bioactive heterocycles and natural products. Substituted indoles like the amino acid tryptophan serve as a precursor for a wide range of natural products with pharmaceutical or agrochemical applications. Inspired by the versatility of these compounds, medicinal chemists have for decades exploited indole as a core structure in the drug discovery process. With the aim of tuning the properties of lead drug candidates, regioselective halogenation of the indole scaffold is a common strategy. However, chemical halogenation is generally expensive, has a poor atom economy, lacks regioselectivity, and generates hazardous waste streams. As an alternative, in this work we engineer the industrial workhorse Saccharomyces cerevisiae for the de novo production of halogenated tryptophan and tryptamine derivatives. Functional expression of bacterial tryptophan halogenases together with a partner flavin reductase and a tryptophan decarboxylase resulted in the production of halogenated tryptophan and tryptamine with chlorine or bromine. Furthermore, by combining tryptophan halogenases, production of di-halogenated molecules was also achieved. Overall, this works paves the road for the production of new-to-nature halogenated natural products in yeast.
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Affiliation(s)
- Nicholas Milne
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark.,Octarine Bio ApS, Lersø Parkallé 42, 1. Sal, 2100, Copenhagen, Denmark
| | - Javier Sáez-Sáez
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Annette Munch Nielsen
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark.,Octarine Bio ApS, Lersø Parkallé 42, 1. Sal, 2100, Copenhagen, Denmark
| | - Jane Dannow Dyekjaer
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Daniela Rago
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Mette Kristensen
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Tune Wulff
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Irina Borodina
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
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91
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Xing L, Gong G, Chen X, Chen X. Discovery of Indole-Piperazine Hybrid Structures as Potent Selective Class I Histone Deacetylases Inhibitors. Chem Pharm Bull (Tokyo) 2023; 71:206-212. [PMID: 36858525 DOI: 10.1248/cpb.c22-00635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
Histone deacetylases (HDACs) are important targets in cancer treatment, and the development of selective and broad-spectrum HDACs inhibitors (HDACis) is urgent. In this research, a series of aroylpiperazine hybrid derivatives were designed and synthesized. Among these, indole-piperazine hybrids 6a (IC50 = 205 nM) and 6b (IC50 = 280 nM) showed submicromolar activity against HDAC1. Moreover, 6a showed a preferable affinity toward class I HDACs, especially for HDAC1-3. In vitro, 6a exhibited better antiproliferative activities against K562 and HCT116 cell lines than chidamide.
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Affiliation(s)
- Liang Xing
- Guangxi Key Laboratory of Urban Water Environment, College of Chemistry and Environmental Engineering, Baise University
| | - Guoliang Gong
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University
| | - Xinyang Chen
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University
| | - Xin Chen
- Shaanxi Key Labotory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University
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92
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Suryawanshi MD, Suryawanshi GD, Mhaske PC, Karpe DG, Kamble KR, Rode SJ, Sudrik VA, Lawande SP. Design, Synthesis of 3-(5-Substituted Phenyl-[1,3,4]oxadiazol-2-yl)-1H- indole and Its Microbial Activity. Chem Biodivers 2023; 20:e202201017. [PMID: 36808804 DOI: 10.1002/cbdv.202201017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 01/03/2023] [Accepted: 02/10/2023] [Indexed: 02/21/2023]
Abstract
Fischer indole synthesis of indole by using phenyl-hydrazine and acetaldehyde resulted 1H-Indole while phenyl-hydrazine reacted with malonaldehyde gives 1H-Indole-3-carbaldehyde. Also Vilsmeier-Haack formylation of 1H-Indole gives 1H-Indole-3-carbaldehyde. 1H-Indole-3-carbaldehyde were oxidized to form 1H-Indole-3-carboxylic acid. 1H-Indole reacted with excess of BuLi at -78 °C using dry ice also gives 1H-Indole-3-carboxylic acid. Obtained 1H-Indole-3-carboxylic acid was converted to ester and ester in to acid hydrazide. Finally 1H-Indole-3-carboxylic acid hydrazide reacted with substituted carboxylic acid gives microbial active indole substituted oxadiazoles. Synthesized compounds 9a-j showing promising in vitro anti microbial activities against S. aureus bacteria compared with Streptomycin. Compound 9a, 9f and 9g showing activities against E. coli compared with standards. Compound 9a and 9f are found potent active against B. subtilis compared with reference standard while compound 9a, 9c and 9j active against S. typhi.
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Affiliation(s)
- Manohar D Suryawanshi
- Department of Chemistry, Shri Chhatrapati Shivaji Mahavidyalaya, 413701, Shrigonda, Ahmednagar (M. S.), India
| | - Ganesh D Suryawanshi
- Department of Chemistry, Dada Patil Mahavidyalaya, 414402, Karjat, Ahmednagar (M.S.), India
| | - Pravin C Mhaske
- Department of Chemistry, Sir Parshurambhau College, 411030, Pune (M.S.), India
| | - Dnyaneshwar G Karpe
- Department of Chemistry, Shri Chhatrapati Shivaji Mahavidyalaya, 413701, Shrigonda, Ahmednagar (M. S.), India
| | - Komal R Kamble
- Department of Chemistry, Shri Chhatrapati Shivaji Mahavidyalaya, 413701, Shrigonda, Ahmednagar (M. S.), India
| | - Sagar J Rode
- Department of Chemistry, Dada Patil Mahavidyalaya, 414402, Karjat, Ahmednagar (M.S.), India
| | - Vilas A Sudrik
- Department of Chemistry, Shri Chhatrapati Shivaji Mahavidyalaya, 413701, Shrigonda, Ahmednagar (M. S.), India
| | - Shamrao P Lawande
- Department of Chemistry, Shri Chhatrapati Shivaji Mahavidyalaya, 413701, Shrigonda, Ahmednagar (M. S.), India
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93
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Sun S, Ye H, Liu H, Guo Y, Gao Z, Pan L, Li J, Bi X. Efficient Synthesis of 3-Mercapto indoles via HI-Promoted Sulfenylation of Indoles with Sodium Sulfinates. ChemistryOpen 2023; 12:e202300002. [PMID: 36971064 PMCID: PMC10041381 DOI: 10.1002/open.202300002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/05/2023] [Indexed: 03/29/2023] Open
Abstract
A new direct sulfenylation method of indoles by sodium sulfinates and hydroiodic acid was developed giving variety of 3-sulfenylindoles in high yields under mild conditions without using any catalysts or other additives. In situ-generated RS-I species are supposed to be mainly responsible for the key electrophilic alkyl- or aryl-thiolation process.
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Affiliation(s)
- Shengnan Sun
- State Key Laboratory of NBC Protection for Civilian, 102205, Beijing, China
| | - Hexia Ye
- State Key Laboratory of NBC Protection for Civilian, 102205, Beijing, China
| | - Haibo Liu
- State Key Laboratory of NBC Protection for Civilian, 102205, Beijing, China
| | - Yongbiao Guo
- State Key Laboratory of NBC Protection for Civilian, 102205, Beijing, China
| | - Zhenhua Gao
- State Key Laboratory of NBC Protection for Civilian, 102205, Beijing, China
| | - Li Pan
- State Key Laboratory of NBC Protection for Civilian, 102205, Beijing, China
| | - Junchen Li
- State Key Laboratory of NBC Protection for Civilian, 102205, Beijing, China
| | - Xiaojing Bi
- State Key Laboratory of NBC Protection for Civilian, 102205, Beijing, China
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94
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Xu Y, Hu BY, Qin Y, Zhuang L, Yang YB, Zhao LX. Jiangchuanmycin, a New Pyrrolizidine Analog from Streptomyces sp. YIM S01863. Chem Biodivers 2023; 20:e202201240. [PMID: 36799244 DOI: 10.1002/cbdv.202201240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 02/18/2023]
Abstract
Jiangchuanmycin (1), a new indole containing pyrrolizidine, and six known peptides (2-7) were obtained from the fermentation broth of a Streptomyces isolate collected from a sediment sample of Xingyun Lake, Jiangchuan, China. Their structures were elucidated on the detailed analysis of the HR-ESI-MS, 1D and 2D NMR, ECD, and X-ray crystallographic data. Jiangchuanmycin (1) presented weak inhibitory effects on cell lines of H1299, MHCC97H, HCT116 with the IC50 values of 97.6 μM, 98.6 μM and 40.6 μM, respectively.
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Affiliation(s)
- Yuan Xu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China
| | - Bin-Yuan Hu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China
| | - Yan Qin
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China
| | - Lu Zhuang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China
| | - Ya-Bin Yang
- Key Laboratory of Functional Molecules Analysis and Biotransformation of Universities in Yunnan Province, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China
| | - Li-Xing Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, Yunnan Characteristic Plant Extraction Laboratory, School of Chemical Science and Technology, Yunnan University, Kunming, 650500, P. R. China
- Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, P. R. China
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95
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Sun H, Sun K, Sun J. Recent Advances of Marine Natural Indole Products in Chemical and Biological Aspects. Molecules 2023; 28:molecules28052204. [PMID: 36903451 PMCID: PMC10005763 DOI: 10.3390/molecules28052204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/16/2023] [Accepted: 02/23/2023] [Indexed: 03/06/2023] Open
Abstract
The ocean has always been one of the important sources of natural products. In recent years, many natural products with different structures and biological activities have been obtained, and their value has been clearly recognized. Researchers have been deeply engaged in the field of separation and extraction, derivative synthesis, structural studies, biological evaluation, and other fields of research for marine natural products. Thus, a series of marine indole natural products which have structural and biological prospect have caught our eyes. In this review, we summarize some of these marine indole natural products with relatively good pharmacological activity and research value, and discuss issues concerning chemistry, pharmacological activity, biological evaluation, and synthesis, including monomeric indoles, indole peptides, bis-indoles, and annelated indoles. Most of the compounds have cytotoxic, antiviral, antifungal, or anti-inflammatory activities.
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Affiliation(s)
- Haoyi Sun
- School of Parmacy and Pharmaceutical Sciences, Institute of Materia Medical, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Kangping Sun
- School of Parmacy and Pharmaceutical Sciences, Institute of Materia Medical, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Jingyong Sun
- School of Parmacy and Pharmaceutical Sciences, Institute of Materia Medical, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, China
- NHC Key Laboratory of Biotechnology Drugs, Shandong Academy of Medical Sciences, Jinan 250117, China
- Key Laboratory for Rare & Uncommon Discases of Shandong Province, Jinan 250117, China
- Correspondence: ; Tel.: +86-531-59567209
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96
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Hu Y, Zhou H, Huang J, Pan G, Wang H, Wang T, Yu C, Zhang L, Gou D, Zhang J. 2-Hydroxypropyl Group Linked Derivatives of Indole Azoles as Potential Multifunctional Antibacterial Candidates for Effectively Inhibiting the Activity of MRSA and Responding Inflammatory Factors. Chem Asian J 2023; 18:e202300054. [PMID: 36787113 DOI: 10.1002/asia.202300054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/11/2023] [Accepted: 02/13/2023] [Indexed: 02/15/2023]
Abstract
The increasing resistance of methicillin-resistant Staphylococcus aureus (MRSA) to antibiotics has led to escalating efforts to design and synthesize new structural agents with significant antimicrobial potential. A novel class of 2-hydroxypropyl group linked derivatives of indole azoles was developed as potential antibacterial agents. Bioactivity screening results demonstrated that metronidazole-modified indole derivative 4 a had excellent antibacterial capacity against MRSA (MIC=6 μM), which was about 4 times that of norfloxacin (MIC=25 μM). Highly active hybrid 4 a did not cause obvious drug-resistance in MRSA after multiple generations (15 passage operations). Compound 4 a showed low toxicity to normal mammalian cells (RAW 264.7). Molecular docking and molecular electrostatic potential (MEP) surface studies were used to map hydrogen bond interactions and the electron distribution in the highly active compounds. In addition, the preliminary exploration of the antibacterial mechanism revealed that the active molecule 4 a could infiltrate the membrane of MRSA and insert into MRSA DNA to prevent its replication, thus activating strong inhibition of the bacteria. Furthermore, highly active derivative 4 a could better respond to inflammatory factors (IL-6, IL-10, TNF-α and PGE-2), and it is less likely to cause inflammatory complications, hence diversifying the functions of antibacterial candidate molecules. These findings effectively indicate the potential of the bioactive hybrid 4 a as a multifunctional anti-MRSA agent. Further exploration of the development of antimicrobials combining these kinds of 2-hydroxypropyl group linked indole derivatives is of great value.
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Affiliation(s)
- Yuanyuan Hu
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, P. R. China.,Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, 518055, Shenzhen, P. R. China
| | - Hao Zhou
- School of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, Hubei, P. R. China
| | - Jinxu Huang
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, P. R. China.,Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, 518055, Shenzhen, P. R. China
| | - Guangxing Pan
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, P. R. China.,Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, 518055, Shenzhen, P. R. China
| | - Hao Wang
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, P. R. China.,Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, 518055, Shenzhen, P. R. China
| | - Tiansheng Wang
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, P. R. China.,Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, 518055, Shenzhen, P. R. China
| | - Congwei Yu
- College of Science, China Agricultural University, 100193, Beijing, P. R. China
| | - Ling Zhang
- School of Science, Harbin Institute of Technology, 518055, Shenzhen, P. R. China
| | - Deming Gou
- College of Life Sciences and °Ceanography, Shenzhen University, 518055, Shenzhen, P. R. China
| | - Jiaheng Zhang
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, P. R. China.,Shenzhen Key Laboratory of Flexible Printed Electronics Technology, School of Materials Science and Engineering, Harbin Institute of Technology, 518055, Shenzhen, P. R. China
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97
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Abstract
Phage therapy is challenged by the frequent emergence of bacterial resistance to phages. As an interspecies signaling molecule, indole plays important roles in regulating bacterial behaviors. However, it is unclear whether indole is involved in the phage-bacterium interactions. Here, we report that indole modulated phage resistance of Pseudomonas aeruginosa PAO1. Specifically, we found that the type IV pilus (T4P) acts as an important receptor for P. aeruginosa phages vB_Pae_S1 and vB_Pae_TR, and indole could protect P. aeruginosa against phage infection via decreasing the T4P-mediated phage adsorption. Further investigation demonstrated that indole downregulated the expression of genes pilA, pilB, and pilQ, which are essential for T4P assembly and activity. Indole inhibits phage attacks, but our data suggest that indole functions not through interfering with the AHL-based QS pathway, although las quorum sensing (QS) of P. aeruginosa PAO1 were reported to promote phage infection. Our finding confirms the important roles of indole in virus-host interactions, which will provide important enlightenment in promoting phage therapy for P. aeruginosa infections. IMPORTANCE Our finding is significant with respect to the study of the interactions between phage and host. Although the important roles of indole in bacterial physiology have been revealed, no direct examples of indole participating in phage-host interactions were reported. This study reports that indole could modulate the phage resistance of indole-nonproducing Pseudomonas aeruginosa PAO1 through inhibition of phage adsorption mechanism. Our finding will be significant for guiding phage therapy and fill some gaps in the field of phage-host interactions.
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98
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Wang X, Burdzhiev NT, Hu H, Li Y, Li J, Lozanova VV, Kandinska MI, Wang M. Novel Tetrahydroisoquinoline-Based Heterocyclic Compounds Efficiently Inhibit SARS-CoV-2 Infection In Vitro. Viruses 2023; 15:v15020502. [PMID: 36851716 PMCID: PMC9965753 DOI: 10.3390/v15020502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/07/2023] [Accepted: 02/10/2023] [Indexed: 02/15/2023] Open
Abstract
The ongoing COVID-19 pandemic has caused over six million deaths and huge economic burdens worldwide. Antivirals against its causative agent, SARS-CoV-2, are in urgent demand. Previously, we reported that heterocylic compounds, i.e., chloroquine (CQ) and hydroxychloroquine (HCQ), are potent in inhibiting SARS-CoV-2 replication in vitro. In this study, we discussed the syntheses of two novel heterocylic compounds: tert-butyl rel-4-(((3R,4S)-3-(1H-indol-3-yl)-1-oxo-2-propyl-1,2,3,4-tetrahydroisoquinolin-4-yl)methyl)piperazine-1-carboxylate (trans-1) and rel-(3R,4S)-3-(1H-indol-3-yl)-4-(piperazin-1-ylmethyl)-2-propyl-3,4-dihydroisoquinolin-1(2H)-one (trans-2), which effectively suppressed authentic SARS-CoV-2 replication in Vero E6 cells. Compound trans-1 showed higher anti-SARS-CoV-2 activity than trans-2, with a half maximal effective concentration (EC50) of 3.15 μM and a selective index (SI) exceeding 63.49, which demonstrated comparable potency to CQ or HCQ. Additional anti-SARS-CoV-2 tests on Calu-3 human lung cells showed that trans-1 efficiently inhibited viral replication (EC50 = 2.78 μM; SI: > 71.94) and performed better than CQ (EC50 = 44.90 μM; SI = 2.94). The time of an addition assay showed that the action mechanism of trans-1 differed from that of CQ, as it mainly inhibited the post-entry viral replication in both Vero E6 and Calu-3 cells. In addition, the differences between the antiviral mechanisms of these novel compounds and CQ were discussed.
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Affiliation(s)
- Xi Wang
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Nikola T. Burdzhiev
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1, James Bourchier Avenue, 1164 Sofia, Bulgaria
| | - Hengrui Hu
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Yufeng Li
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Jiang Li
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Vesela V. Lozanova
- Department of Medical Chemistry and Biochemistry, Medical Faculty, Medical University-Sofia, 2 Zdrave Str., 1431 Sofia, Bulgaria
| | - Meglena I. Kandinska
- Faculty of Chemistry and Pharmacy, Sofia University “St. Kliment Ohridski”, 1, James Bourchier Avenue, 1164 Sofia, Bulgaria
- Correspondence: (M.I.K.); (M.W.)
| | - Manli Wang
- Center for Biosafety Mega-Science, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
- Hubei Jiangxia Laboratory, Wuhan 430071, China
- Correspondence: (M.I.K.); (M.W.)
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99
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Cheng Y, Lyu X, Liu C, Wang X, Cheng J, Zhang D, Meng X, Zhao Y. Synthesis and Biological Evaluation of Sclareolide- Indole Conjugates and Their Derivatives. Molecules 2023; 28. [PMID: 36838727 DOI: 10.3390/molecules28041737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
Sclareolide is a sesquiterpene lactone isolated from various plant sources in tons every year and is commercially used as a flavor ingredient in the cosmetic and food industries. Antitumor and antiviral activities of sclareolide have been previously reported. However, biological studies of sclareolide synthetic analogous are few. In view of these, we developed a robust synthetic method that allows the assembly of 36 novel sclareolide-indole conjugates and their derivatives. The synthetic method was based on TiCl4-promoted nucleophilic substitution of sclareolide-derived hemiacetal 4, while electron-rich aryles including indoles, polyphenol ethers, and pyrazolo [1,5-a]pyridine were good substrates. The stereochemistry of the final products was confirmed by single-crystal X-ray diffraction analysis, while the antiproliferative activities of selected final products were tested in K562 and MV4-11 cancer cell lines. Cytometric flow analysis shows that lead compounds 8k- and 10-induced robust apoptosis in MV4-11 cancer cells, while they exhibited weak impact on cell cycle progression. Taken together, our study suggests that sclareolide could be a good template and substrate for the synthesis of novel antiproliferative compounds.
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100
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Kulkarni S, Singh Y, Biharee A, Bhatia N, Monga V, Thareja S. Molecular docking, 3D-QSAR and simulation studies for identifying pharmacophoric features of indole derivatives as 17β-hydroxysteroid dehydrogenase type 5 (17β-HSD5) inhibitors. J Biomol Struct Dyn 2023; 41:12668-12685. [PMID: 36744535 DOI: 10.1080/07391102.2023.2175265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/05/2023] [Indexed: 02/07/2023]
Abstract
Excess of androgens leads to various diseases such as Poly-Cystic Ovarian Syndrome, Prostate Cancer, Hirsutism, Obesity and Acne. 17β-Hydroxysteroid Dehydrogenase type 5 (17β-HSD5) converts androstenedione into testosterone peripherally, thereby significantly contributing to the development of these diseases. Indole-bearing scaffolds are reported as potential 17β-HSD5 inhibitors for the manifestation of diseases arising due to androgen excess. In the present work, we have extensively performed a combination of molecular docking, Gaussian field-based 3D-QSAR, Pharmacophore mapping and MD-simulation studies (100 ns) to identify the pharmacophoric features of indole-based compounds as potent 17β-HSD5 inhibitors. Molecular simulation studies of the most potent compound in the binding pocket of enzyme revealed that the compound 11 was stable in the binding pocket and showed good binding affinity through interactions with various residues of active site pocket. The Molecular mechanics Generalized Born surface area continuum solvation (MM/GBSA) and Molecular mechanics Poisson-Boltzmann surface area (MM/PBSA) calculations revealed that the compound 11 possessed a free binding energy of -36.36 kcal/mol and -7.00 kcal/mol, respectively, which was better as compared to reference compound Desmethyl indomethacin (DES). The developed pharmacophore will be helpful to design novel indole-based molecules as potent 17β-HSD5 inhibitors for the treatment of various androgenic disorders.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Swanand Kulkarni
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
| | - Yogesh Singh
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
| | - Avadh Biharee
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
| | - Neha Bhatia
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
| | - Vikramdeep Monga
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
| | - Suresh Thareja
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
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