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Chen CG, Amadei A, D'Abramo M. Modeling the temperature dependence of the fluorescence properties of Indole in aqueous solution. Spectrochim Acta A Mol Biomol Spectrosc 2024; 313:124096. [PMID: 38442616 DOI: 10.1016/j.saa.2024.124096] [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: 10/16/2023] [Revised: 02/05/2024] [Accepted: 02/27/2024] [Indexed: 03/07/2024]
Abstract
In a recent paper, we proposed a scheme to describe the relaxation mechanism of the excited Indole in aqueous solution, involving the fluctuations among the diabatic electronic states 1Lb, 1La and 1πσ∗. Such a theoretical and computational model reproduced accurately the available experimental data at room temperature. Following these results, in the present work, we model the complex temperature dependence of the fluorescence properties of Indole in aqueous solution, with results further validating the proposed relaxation scheme. This scheme is able to explain the temperature effects on the fluorescence behavior indicating the water fluctuations as the main cause of (i) the stabilization of the dark state (1πσ∗) and (ii) the increase in temperature of the kinetics of the irreversible transition towards such a state.
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Affiliation(s)
- Cheng Giuseppe Chen
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro, 5, Rome, 00185, Italy
| | - Andrea Amadei
- Department of Technological and Chemical Sciences, Tor Vergata University of Rome, Via della Ricerca Scientifica, 1, Rome, 00133, Italy.
| | - Marco D'Abramo
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro, 5, Rome, 00185, Italy.
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2
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Takiwaki M, Umemura H, Kikutani Y, Fukuzawa S, Abe K, Fujino K, Sugihara S, Tachibana K, Morizane S, Satoh M, Nakayama T, Yamasaki O. A method for measuring serum levels of melanin-associated indole metabolites using LC-MS/MS and its application to malignant melanoma. Clin Chim Acta 2024; 557:117873. [PMID: 38493943 DOI: 10.1016/j.cca.2024.117873] [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: 07/20/2023] [Revised: 02/29/2024] [Accepted: 03/09/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND AND AIMS With the development of novel therapies for advanced malignant melanoma (MM), biomarkers that can accurately reflect the progression of MM are needed. Serum levels of melanin-related indole metabolites such as 5-hydroxy-6-methoxyindole-2-carboxylic acid (5H6MI2C) and 6-hydroxy-5-methoxyindole-2-carboxylic acid (6H5MI2C) are potential biomarkers for MM. Here, we describe the development of a mass spectrometry (MS)-based assay to determine serum levels of 5H6MI2C and 6H5MI2C. MATERIALS AND METHODS We developed a stable isotope dilution-selective reaction monitoring-MS protocol using liquid chromatography tandem mass spectrometry (LC-MS/MS) to measure human serum 5H6MI2C and 6H5MI2C levels. Analytical evaluations of the method were performed and the method was applied to serum samples from MM patients (n = 81). RESULTS The method established in this study showed high reproducibility and linearity. This novel method also found that serum 6H5MI2C levels were significantly elevated in patients with metastatic MM compared to those with non-metastatic MM. Unfortunately, 5H6MI2C did not show a comparable significant difference. CONCLUSION We successfully established measurement methods for serum 5H6MI2C and 6H5MI2C levels using LC-MS/MS. Serum 6H5MI2C levels offer a potential marker for MM.
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Affiliation(s)
- Masaki Takiwaki
- Medical Equipment Business Operations, JEOL Ltd., Tokyo, Japan
| | - Hiroshi Umemura
- Division of Laboratory Medicine, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan.
| | | | | | - Kentaro Abe
- Medical Equipment Business Operations, JEOL Ltd., Tokyo, Japan
| | - Kiyotaka Fujino
- Medical Equipment Business Operations, JEOL Ltd., Tokyo, Japan
| | - Satoru Sugihara
- Melanoma Center, Okayama University Hospital, Okayama, Japan
| | - Kota Tachibana
- Melanoma Center, Okayama University Hospital, Okayama, Japan
| | - Shin Morizane
- Melanoma Center, Okayama University Hospital, Okayama, Japan
| | - Mamoru Satoh
- Division of Clinical Mass Spectrometry, Chiba University, Chiba, Japan
| | - Tomohiro Nakayama
- Division of Laboratory Medicine, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan; Division of Clinical Proteomics, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
| | - Osamu Yamasaki
- Melanoma Center, Okayama University Hospital, Okayama, Japan
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3
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Hu YG, Battini N, Fang B, Zhou CH. Discovery of indolylacryloyl-derived oxacins as novel potential broad-spectrum antibacterial candidates. Eur J Med Chem 2024; 270:116392. [PMID: 38608408 DOI: 10.1016/j.ejmech.2024.116392] [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: 02/04/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024]
Abstract
The emergence of serious bacterial resistance towards clinical oxacins poses a considerable threat to global public health, necessitating the development of novel structural antibacterial agents. Seven types of novel indolylacryloyl-derived oxacins (IDOs) were designed and synthesized for the first time from commercial 3,4-difluoroaniline via an eight-step procedure. The synthesized compounds were characterized by modern spectroscopic techniques. All target molecules were evaluated for antimicrobial activities. Most of the prepared IDOs showed a broad antibacterial spectrum and strong activities against the tested strains, especially ethoxycarbonyl IDO 10d (0.25-0.5 μg/mL) and hydroxyethyl IDO 10e (0.25-1 μg/mL) exhibited much superior antibacterial efficacies to reference drug norfloxacin. These highly active IDOs also displayed low hemolysis, cytotoxicity and resistance, as well as rapid bactericidal capacity. Further investigations indicated that ethoxycarbonyl IDO 10d and hydroxyethyl IDO 10e could effectively reduce the exopolysaccharide content and eradicate the formed biofilm, which might delay the development of drug resistance. Preliminary exploration of the antibacterial mechanism revealed that active IDOs could not only destroy membrane integrity, resulting in changes in membrane permeability, but also promote the accumulation of reactive oxygen species, leading to the production of malondialdehyde and decreased bacterial metabolism. Moreover, they exhibited the capability to bind with DNA and DNA gyrase, forming supramolecular complexes through various noncovalent interactions, thereby inhibiting DNA replication and causing bacterial death. All the above results suggested that the newly developed indolylacryloyl-derived oxacins should hold great promise as potential multitargeting broad-spectrum antibacterial candidates to overcome drug resistance.
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Affiliation(s)
- Yue-Gao Hu
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Narsaiah Battini
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Bo Fang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators As Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing, 402160, China.
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China.
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Yoshimura G, Sakamoto J, Kitajima M, Ishikawa H. Indole C5-Selective Bromination of Indolo[2,3-a]quinolizidine Alkaloids via In Situ-Generated Indoline Intermediate. Chemistry 2024:e202401153. [PMID: 38584124 DOI: 10.1002/chem.202401153] [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: 03/22/2024] [Revised: 04/05/2024] [Accepted: 04/07/2024] [Indexed: 04/09/2024]
Abstract
There are many indole alkaloids that contain diverse functional groups attached to the benzene ring on the indole core. Promising biological activities of these alkaloids have been reported. Herein, we report the indole C5-selective bromination of indolo[2,3-a]quinolizidine alkaloids by adding nearly equimolar amounts of Br3·PyH and HCl in MeOH. The resulting reaction plausibly proceeds through an indoline intermediate by the nucleophilic addition of MeOH to the C3-brominated indolenine intermediate. Data support the intermediacy of a C3-, C5-dibrominated indolenine intermediate as a brominating agent. These conditions demonstrate excellent selectivity for indole C5 bromination of natural products and their derivatives. Thus, these simple, mild, and metal-free conditions allow for selective, late-stage bromination followed by further chemical modifications. The utility of the brominated product prepared from naturally occurring yohimbine was demonstrated through various derivatizations, including a bioinspired heterodimerization reaction.
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Affiliation(s)
- Go Yoshimura
- Chiba University, Graduate School of Pharmaceutical Sciences, JAPAN
| | - Jukiya Sakamoto
- Chiba University, Graduate School of Pharmaceutical Sciences, JAPAN
| | - Mariko Kitajima
- Chiba University, Graduate School of Pharmaceutical Sciences, JAPAN
| | - Hayato Ishikawa
- Chiba University Graduate School of Pharmaceutical Sciences Faculty of Pharmaceutical Sciences: Chiba Daigaku Daigakuin Yakugaku Kenkyuin Yakugakubu, Graduate School of Science and Technology, 1-8-1 Inohana, Chuo-ku, 2608675, Chiba, JAPAN
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5
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Kaur K, Verma H, Gangwar P, Jangid K, Dhiman M, Kumar V, Jaitak V. Design, synthesis, in silico and biological evaluation of new indole based oxadiazole derivatives targeting estrogen receptor alpha. Bioorg Chem 2024; 147:107341. [PMID: 38593531 DOI: 10.1016/j.bioorg.2024.107341] [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: 02/11/2024] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/11/2024]
Abstract
A series of new indole-oxadiazole derivatives was designed and synthesized to develop potential anti-breast cancer agents. The compounds exhibited significant inhibitory activity with IC50 values ranging from 1.78 to 19.74 μM against ER-positive human breast cancer (BC) cell lines T-47D and MCF-7. Among them, compounds (5a, 5c, 5e-5h, 5j-5o) displayed superior activity against ER-α dominant (ratio of ER-α/ER-β is 9/1) T-47D cells compared to the standard drug bazedoxifene (IC50 = 12.78 ± 0.92 μM). Compounds 5c and 5o exhibited remarkable anti-proliferative activity with IC50 values of 3.24 ± 0.46 and 1.72 ± 1.67 μM against T-47D cells, respectively. Further, compound 5o manifested 1589-fold higher ER-α binding affinity (213.4 pM) relative to bazedoxifene (339.2 nM) in a competitive ER-α binding assay, while compound 5c showed a binding affinity of 446.6 nM. The Western blot analysis proved that both compounds influenced the ER-α protein's expression, impeding its subsequent transactivation and signalling pathway within T-47D cells. Additionally, a molecular docking study suggests that compounds 5c and 5o bind in such a fashion that induces conformational changes in the protein, culminating in their antagonistic effect. Also, pharmacokinetic profiles showed that all compounds have drug-like properties. Further, molecular dynamic (MD) simulations and density functional theory (DFT) analysis confirmed the stability, conformational behaviour, reactivity, and biological feasibility of compounds 5c and 5o. In conclusion, based on our findings, compounds 5c and 5o, which exhibit significant ER-α antagonistic activity, can act as potential lead compounds for developing anti-breast cancer agents.
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Affiliation(s)
- Kamalpreet Kaur
- Department of Pharmaceutical Sciences and Natural Products. Central University of Punjab, Ghudda, Bathinda (Pb) 151401, India
| | - Harkomal Verma
- Department of Zoology, Central University of Punjab, Ghudda, Bathinda (Pb) 151401, India
| | - Prabhakar Gangwar
- Department of Zoology, Central University of Punjab, Ghudda, Bathinda (Pb) 151401, India
| | - Kailash Jangid
- Department of Chemistry, Central University of Punjab, Ghudda, Bathinda (Pb) 151401, India
| | - Monisha Dhiman
- Department of Microbiology, Central University of Punjab, Ghudda, Bathinda (Pb) 151401, India
| | - Vinod Kumar
- Department of Chemistry, Central University of Punjab, Ghudda, Bathinda (Pb) 151401, India
| | - Vikas Jaitak
- Department of Pharmaceutical Sciences and Natural Products. Central University of Punjab, Ghudda, Bathinda (Pb) 151401, India.
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Nguyen NTH, Tran GT, Nguyen TTT, Nguyen DTC, Tran TV. Synthesis of MnFe 2O 4/activated carbon derived from durian shell waste for removal of indole in water: Optimization, modelling, and mechanism. Environ Res 2024:118883. [PMID: 38583658 DOI: 10.1016/j.envres.2024.118883] [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: 01/18/2024] [Revised: 03/30/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
While durian shell is often discharged into landfills, this waste can be a potential and zero-cost raw material to synthesize carbon-based adsorbents with purposes of saving costs and minimizing environmental contamination. Indole (IDO) is one of serious organic pollutants that influence aquatic species and human health; hence, the necessity for IDO removal is worth considering. Here, we synthesized a magnetic composite, denoted MFOAC, based on activated carbon (AC) derived from durian shell waste supported by MnFe2O4 (MFO) to adsorb IDO in water. MFOAC showed a microporous structure, along with a high surface area and pore volume, at 518.9 m2/g, and 0.106 cm3/g, respectively. Optimization of factors affecting the IDO removal of MFOAC were implemented by Box-Behnken design and response surface methodology. Adsorption kinetics and isotherms suggested a suitable model for MFOAC to remove IDO. MFOAC was recyclable with 3 cycles. Main interactions involving in the IDO adsorption mechanism onto MFOAC were clarified, including pore filling, n-π interaction, π-π interaction, Yoshida H-bonding, H-bonding.
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Affiliation(s)
- Nhu Thi Huynh Nguyen
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam; Department of Chemical Engineering and Food Technology, Nong Lam University, Ho Chi Minh City, 700000, Viet Nam
| | - Giang Thanh Tran
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam; Department of Chemical Engineering and Food Technology, Nong Lam University, Ho Chi Minh City, 700000, Viet Nam
| | - Thuy Thi Thanh Nguyen
- Department of Chemical Engineering and Food Technology, Nong Lam University, Ho Chi Minh City, 700000, Viet Nam; Faculty of Science, Nong Lam University, Ho Chi Minh City, 700000, Viet Nam
| | - Duyen Thi Cam Nguyen
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam.
| | - Thuan Van Tran
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam.
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7
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Zeng Z, Lv B, Tang YE, Sun H, Li S, He Y, Wang J, Wang Z. Effects of dietary selenized glucose on intestinal microbiota and tryptophan metabolism in rats: Assessing skatole reduction potential. Environ Res 2024; 252:118874. [PMID: 38579995 DOI: 10.1016/j.envres.2024.118874] [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: 01/28/2024] [Revised: 03/07/2024] [Accepted: 04/03/2024] [Indexed: 04/07/2024]
Abstract
3-Methylindole (Skatole), a degradation product of tryptophan produced by intestinal microbial activity, significantly contributes to odor nuisance. Its adverse effects on animal welfare, human health, and environmental pollution have been noted. However, it is still unclear whether the intestinal microbiota mediates the impact of selenium (Se) on skatole production and what the underlying mechanisms remain elusive. A selenized glucose (SeGlu) derivative is a novel organic selenium compound. In this study, a diverse range of dietary SeGlu-treated levels, including SeGlu-deficient (CK), SeGlu-adequate (0.15 mg Se per L), and SeGlu-supranutritional (0.4 mg Se per L) conditions, were used to investigate the complex interaction of SeGlu on intestinal microbiome and serum metabolome changes in male Sprague-Dawley (SD) rats. The study showed that SeGlu supplementation enhanced the antioxidant ability in rats, significantly manifested in the increases of the activity of catalase (CAT) and glutathione peroxidase (GSH-Px), while no change in the level of malonaldehyde (MDA). Metagenomic sequencing analysis verified that the SeGlu treatment group significantly increased the abundance of beneficial microorganisms such as Clostridium, Ruminococcus, Faecalibacterium, Lactobacillus, and Alloprevotella while reducing the abundance of opportunistic pathogens such as Bacteroides and Alistipes significantly. Further metabolomic analysis revealed phenylalanine, tyrosine, and tryptophan biosynthesis changes in the SeGlu treatment group. Notably, the biosynthesis of indole, a critical pathway, was affected by SeGlu treatment, with several crucial enzymes implicated. Correlation analysis demonstrated strong associations between specific bacterial species - Treponema, Bacteroides, and Ruminococcus, and changes in indole and derivative concentrations. Moreover, the efficacy of SeGlu-treated fecal microbiota was confirmed through fecal microbiota transplantation, leading to a decrease in the concentration of skatole in rats. Collectively, the analysis of microbiota and metabolome response to diverse SeGlu levels suggests that SeGlu is a promising dietary additive in modulating intestinal microbiota and reducing odor nuisance in the livestock and poultry industry.
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Affiliation(s)
- Zhi Zeng
- College of Life Science, Hunan Normal University, Changsha, 410006, Hunan, China
| | - Bo Lv
- College of Life Science, Hunan Normal University, Changsha, 410006, Hunan, China
| | - Yun-E Tang
- College of Life Science, Hunan Normal University, Changsha, 410006, Hunan, China
| | - Huimin Sun
- College of Life Science, Hunan Normal University, Changsha, 410006, Hunan, China
| | - Shunfeng Li
- College of Life Science, Hunan Normal University, Changsha, 410006, Hunan, China
| | - Yuan He
- College of Life Science, Hunan Normal University, Changsha, 410006, Hunan, China
| | - Juan Wang
- College of Life Science, Hunan Normal University, Changsha, 410006, Hunan, China
| | - Zhi Wang
- College of Life Science, Hunan Normal University, Changsha, 410006, Hunan, China.
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8
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Todorovic M, Blanc A, Wang Z, Lozada J, Froelich J, Zeisler J, Zhang C, Merkens H, Benard F, Perrin DM. 5-Hydroxypyrroloindoline Affords Tryptathionine and 2,2'-bis- Indole Peptide Staples: Application to Melanotan-II. Chemistry 2024; 30:e202304270. [PMID: 38285527 DOI: 10.1002/chem.202304270] [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: 12/21/2023] [Revised: 01/29/2024] [Accepted: 01/29/2024] [Indexed: 01/31/2024]
Abstract
With peptides increasingly favored as drugs, natural product motifs, namely the tryptathionine staple, found in amatoxins and phallotoxins, and the 2,2'-bis-indole found in staurosporine represent unexplored staples for unnatural peptide macrocycles. We disclose the efficient condensation of a 5-hydroxypyrroloindoline with either a cysteine-thiol or a tryptophan-indole to form a tryptathionine or 2-2'-bis-indole staple. Judicious use of protecting groups provides for chemoselective stapling using α-MSH, which provides a basis for investigating both chemoselectivity and affinity. Both classes of stapled peptides show nanomolar Ki's, with one showing a sub-nanomolar Ki value.
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Affiliation(s)
- Mihajlo Todorovic
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
| | - Antoine Blanc
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
| | - Zhou Wang
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
| | - Jerome Lozada
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
| | - Juliette Froelich
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
| | - Jutta Zeisler
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, V5Z 1 L3, Vancouver, BC, Canada
| | - Chengcheng Zhang
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, V5Z 1 L3, Vancouver, BC, Canada
| | - Helen Merkens
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, V5Z 1 L3, Vancouver, BC, Canada
| | - Francois Benard
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, V5Z 1 L3, Vancouver, BC, Canada
| | - David M Perrin
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, BC, Canada
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9
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Zhang J, Ma Q, Wang C, Lu S, Fan S. Biodegradation characteristics and genomic analysis of a newly isolated indole-degrading strain Pseudomonas aeruginosa Jade-X. Int Microbiol 2024; 27:449-457. [PMID: 37490176 DOI: 10.1007/s10123-023-00408-3] [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: 06/10/2023] [Revised: 07/07/2023] [Accepted: 07/18/2023] [Indexed: 07/26/2023]
Abstract
Indole is a typical heterocyclic compound derived from tryptophan widespread in nature. Pseudomonas aeruginosa is one of the most common opportunistic pathogens everywhere in the world. Indole and P. aeruginosa will encounter inevitably; however, the indole transformation process by P. aeruginosa remains unclear. Herein, an indole-degrading strain of P. aeruginosa Jade-X was isolated from activated sludge. Strain Jade-X could degrade 1 mmol/L indole within 48 h with the inoculum size of 1% (v/v). It showed high efficiency in indole degradation under the conditions of 30-42 °C, pH 5.0-9.0, and NaCl concentration less than 2.5%. The complete genome of strain Jade-X was sequenced which was 6508614 bp in length with one chromosome. Bioinformatic analyses showed that strain Jade-X did not contain the indole oxygenase gene. Three cytochrome P450 genes were identified and up-regulated in the indole degradation process by RT-qPCR analysis, while cytochrome P450 inhibitors did not affect the indole degradation process. It suggested that indole oxidation was catalyzed by an unraveled enzyme. An ant gene cluster was identified, among which the anthranilate 1,2-dioxygenase and catechol 1,2-dioxygenase genes were upregulated. An indole-anthranilate-catechol pathway was proposed in indole degradation by strain P. aeruginosa Jade-X. This study enriched our understanding of the indole biodegradation process in P. aeruginosa.
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Affiliation(s)
- Jiaxin Zhang
- Institute of Environmental Systems Biology, College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Qiao Ma
- Institute of Environmental Systems Biology, College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China.
| | - Caihong Wang
- Institute of Environmental Systems Biology, College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Shuxian Lu
- Institute of Environmental Systems Biology, College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Shengqiang Fan
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China.
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Gavadia R, Rasgania J, Sahu N, Nimesh S, Loveleen L, Mor S, Jakhar K. Synthesis of Indole-Linked Thiadiazoles and their Anticancer Action against Triple-Negative Breast Cancer. Chem Biodivers 2024; 21:e202302000. [PMID: 38427723 DOI: 10.1002/cbdv.202302000] [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: 12/12/2023] [Revised: 02/23/2024] [Accepted: 03/01/2024] [Indexed: 03/03/2024]
Abstract
With a lack of targeted therapy and significantly high metastasis, heterogeneity, and relapse rates, Triple-Negative Breast Cancer (TNBC) offers substantial treatment challenges and demands more chemotherapeutic interventions. In the present study, indole-endowed thiadiazole derivatives have been synthesized and screened for antiproliferative potency against the triple-negative breast cancer MDA-MB-231 cell line. Compound 4 h, possessing chlorophenyl moiety, displays the best anticancer potency (IC50: 0.43 μM) in the cell viability assay. The title compounds demonstrate substantial docking competency against the EGFR receptor (PDB ID: 3POZ), validating their in-vitro ant proliferative action. With a high docking score (-9.9 to -8.7 kcal/mol), the indole hybrids display significant binding propensity comparable to the co-crystallized ligand TAK-285 and occupy a similar strategic position in the active domain of the designated receptor. The quantum and electronic properties of the integrated templates are evaluated through DFT, and optimal values of the deduced global reactivity indices, such as energy gap, electronegativity, ionization potential, chemical potential, electrophilicity, etc., suggest their apt biochemical reactivity. The indole hybrids show near-appropriate pharmacokinetic efficacy and bioavailability in the in-silico studies, indicating their candidacy for potential drug usage. Promising in-vitro anticancer action and binding interfaces project indole conjugates as potential leads in addressing the TNBC dilemma.
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Affiliation(s)
- Renu Gavadia
- Department of Chemistry, M. D. University, Rohtak, 124001, Haryana, India
| | - Jyoti Rasgania
- Department of Chemistry, M. D. University, Rohtak, 124001, Haryana, India
| | - Neetu Sahu
- Department of Chemistry, M. D. University, Rohtak, 124001, Haryana, India
| | - Surendra Nimesh
- Department of Biotechnology, School of Life Sciences, Central University of Rajasthan, Ajmer, 305817, India
| | - Lacy Loveleen
- Department of Biotechnology, School of Life Sciences, Central University of Rajasthan, Ajmer, 305817, India
| | - Satbir Mor
- Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India
| | - Komal Jakhar
- Department of Chemistry, M. D. University, Rohtak, 124001, Haryana, India
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Aksenov DA, Smith JL, Aksenov AV, Prityko LA, Aksenov NA, Kuzminov IK, Aleksandrova EV, Sathish P, Mesa-Diaz N, Vernaza A, Zhang A, Du L, Kornienko A. 2-(3-Indolyl)acetamides and their oxazoline analogues: Anticancer SAR study. Bioorg Med Chem Lett 2024; 102:129681. [PMID: 38432288 DOI: 10.1016/j.bmcl.2024.129681] [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: 11/08/2023] [Revised: 02/21/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
We previously studied 2-aryl-2-(3-indolyl)acetohydroxamates as potential agents against melanoma. These compounds were ineffective in a mouse melanoma xenograft model, most likely due to unfavorable metabolic properties, specifically due to glucuronidation of the N-hydroxyl of the hydoxamic moiety. In the present work, we prepared a series of analogues, 2-aryl-2-(3-indolyl)acetamides and their oxazoline derivatives, which do not contain the N-hydroxyl group. We investigated the structure-activity relationship in both series of compounds and found that the 2-naphthyl is a preferred group at C-2 of the indole in the amide series, whereas the tetralin moiety is favorable in the same location in the oxazoline series. Overall, three compounds in the amide series have GI50 values as low as 0.2-0.3 µM and the results clearly indicate that the N-hydroxyl group is not necessary for high potency in vitro.
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Affiliation(s)
- Dmitrii A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Jadyn L Smith
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Alexander V Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Lidiya A Prityko
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Nicolai A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Iliya K Kuzminov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Elena V Aleksandrova
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin Street, Stavropol 355009, Russian Federation
| | - Puppala Sathish
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Nakya Mesa-Diaz
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Alexandra Vernaza
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Angela Zhang
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Liqin Du
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA
| | - Alexander Kornienko
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
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12
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Zheng J, Zuo G, Zhou Z, Shi Z, Guo H, Sun Z, Feng Y. Indole inhibited the expression of csrA gene in Escherichia coli. J GEN APPL MICROBIOL 2024; 69:239-248. [PMID: 37423745 DOI: 10.2323/jgam.2023.06.007] [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] [Indexed: 07/11/2023]
Abstract
Indole is a very important signal molecule which plays multiple regulatory roles in many physiological and biochemical processes of bacteria, but up to now, the reasons for its wide range of functions have not been revealed. In this study, we found that indole inhibits the motility, promotes glycogen accumulation and enhances starvation resistance of Escherichia coli. However, the regulatory effects of indole became insignificant while the global csrA gene was mutated. To reveal the regulatory relationship between indole and csrA, we studied the effects of indole on the transcription level of csrA, flhDC, glgCAP and cstA, and also the sensing of the promoters of the genes on indole. It was found that indole inhibited the transcription of csrA, and only the promoter of the csrA gene can sense indole. Namely, indole indirectly regulated the translation level of FlhDC, GlgCAP and CstA. These data indicates that indole regulation is related with the regulation of CsrA, which may throw light on the regulation mechanism research of indole.
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Affiliation(s)
- Jing Zheng
- School of Life Science, Beijing Institute of Technology
- School of Life Science, Langfang Normal University
| | - Guocai Zuo
- School of Life Science, Langfang Normal University
| | - Zhiguo Zhou
- School of Life Science, Langfang Normal University
| | - Zhenxia Shi
- School of Life Science, Langfang Normal University
| | - Huiying Guo
- School of Life Science, Langfang Normal University
| | - Zemin Sun
- School of Life Science, Beijing Institute of Technology
| | - Yongjun Feng
- School of Life Science, Beijing Institute of Technology
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13
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Zhang J, Ma Q, Wang C, Meng N. Unraveling the signaling roles of indole in an opportunistic pathogen Pseudomonas aeruginosa strain Jade-X. Chemosphere 2024; 352:141482. [PMID: 38387666 DOI: 10.1016/j.chemosphere.2024.141482] [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] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 12/29/2023] [Accepted: 02/15/2024] [Indexed: 02/24/2024]
Abstract
Pseudomonas aeruginosa, which can produce several toxins and form biofilm, is listed among the priority pathogens. Indole is a ubiquitous aromatic pollutant and signaling molecule produced by tryptophanase in bacteria. Herein, the impacts of indole on a newly isolated P. aeruginosa strain Jade-X were systematically investigated. Indole (0.5-2.0 mM) enhanced the biofilm production by 1.33-2.31-fold after 24 h incubation at 30 °C. However, the effects indole on biofilm formation were intricate and closely intertwined with factors such as incubation temperature, bacterial growth stage, and indole concentration. The twitching motility was enhanced by 1.15-1.99-fold by indole, potentially facilitating surface exploration and biofilm development. Indole reduced the production of virulence factors (pyocyanin and pyoverdine) as well as altered the surface properties (zeta potential and hydrophobicity). Transcriptional analysis revealed that indole (1.0 mM) significantly downregulated mexGHI-opmD efflux genes (4.73-6.91-fold) and virulence-related genes (pqs, pch, and pvd clusters, and flagella-related genes), while upregulating pili-related genes in strain Jade-X. The quorum sensing related signal regulators, including RhlR, LasR, and MvfR (PqsR), were not altered by indole, while other six transcriptional regulators (AmrZ, BfmR, PchR, QscR, SoxR, and SphR) were significantly affected, implying that indole effects might be regulated in a complex and delicate manner. This study should provide new insights into our understanding of indole signaling roles.
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Affiliation(s)
- Jiaxin Zhang
- Institute of Environmental Systems Biology, College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Qiao Ma
- Institute of Environmental Systems Biology, College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China.
| | - Caihong Wang
- Institute of Environmental Systems Biology, College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
| | - Nan Meng
- Institute of Environmental Systems Biology, College of Environmental Science and Engineering, Dalian Maritime University, Dalian, 116026, China
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14
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Mhaske K, Gangai S, Fernandes R, Kamble A, Chowdhury A, Narayan R. Aerobic Catalytic Cross-Dehydrogenative Coupling of Furans with Indoles Provides Access to Fluorophores with Large Stokes Shift. Chemistry 2024; 30:e202302929. [PMID: 38175849 DOI: 10.1002/chem.202302929] [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: 09/08/2023] [Indexed: 01/06/2024]
Abstract
Sustainability in chemical processes is a crucial aspect in contemporary chemistry with sustainable catalysis as a vital parameter of the same. There has been a renewed focus on utilizing earth-abundant metal catalysts to expand the repertoire of organic reactions. Furan is a versatile heterocycle of natural origin used for multiple applications. However, it has scarcely been used in cross-dehydrogenative coupling. In this work, we have explored the cross-dehydrogentive coupling of furans with indoles using commonly available, inexpensive FeCl3 ⋅ 6H2 O (<0.25 $/g) as catalyst in the presence of so called 'ultimate oxidant' - oxygen, without the need for any external ligand or additive. The reactions were found to be scalable and to work even under partially aqueous conditions. This makes the reaction highly economical, practical, operationally simple and sustainable. The methodology provides direct access to π-conjugated short oligomers consisting of furan, thiophene and indole. These compounds were found to show interesting fluorescence properties with remarkably large Stokes shift (up to 205 nm). Mechanistic investigations reveal that the reaction proceeds through chemoselective oxidation of indole by the metal catalyst followed by nucleophilic trapping by furan.
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Affiliation(s)
- Krishna Mhaske
- School of Chemical and Materials Sciences, Indian Institute of Technology Goa, Farmagudi, Goa, 403401, India
| | - Shon Gangai
- School of Chemical and Materials Sciences, Indian Institute of Technology Goa, Farmagudi, Goa, 403401, India
| | - Rushil Fernandes
- School of Chemical and Materials Sciences, Indian Institute of Technology Goa, Farmagudi, Goa, 403401, India
| | - Angulimal Kamble
- School of Chemical and Materials Sciences, Indian Institute of Technology Goa, Farmagudi, Goa, 403401, India
| | - Arkaprava Chowdhury
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, Maharashtra, India
| | - Rishikesh Narayan
- School of Chemical and Materials Sciences, Indian Institute of Technology Goa, Farmagudi, Goa, 403401, India
- School of Interdisciplinary Life Sciences, Indian Institute of Technology Goa, Farmagudi, Goa, 403401, India
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15
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Rani S, Vermani S, Kaur V, Singh P. Targeting aromatase to restrain oestrogen production and developing efficacious interventions against ER-positive cancer. Eur J Med Chem 2024; 265:116111. [PMID: 38185056 DOI: 10.1016/j.ejmech.2023.116111] [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: 11/24/2023] [Revised: 12/29/2023] [Accepted: 12/29/2023] [Indexed: 01/09/2024]
Abstract
Being the most frequently diagnosed disease, breast cancer is mainly classified as ER+ cancers due to the detection of estrogen receptor (ER) expression. Irrespetive of the successes achieved in the treatment of ER+ cancers by the use of selective estrogen receptor modulator (SERM) drugs like tamoxifen, resistance to the drug is a major clinical obstacle. Working on alternative treatment approaches, here, on the basis of mode of action of aromatase for the conversion of androstenedione to oestrogen, a series of compounds was developed. Results of all the experiments performed with these compounds led to the identification of three highly potent compounds 5d, 5e and 7d with their IC50 61.0, 83.0 and 54.0 nM for aromatase. Indicating their effectiveness in the treatment of ER+ cancers, appreciable tumor growth inhibitory activities of these compounds were observed against breast cancer cell lines. Further, the physico-chemical experiments including plasma protein binding, HSA binding, kinetic studies, solubility, ADME properties and molecular modelling studies supported the drug like features of the compounds.
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Affiliation(s)
- Sudesh Rani
- Department of Chemistry, Guru Nanak Dev University, Amritsar, 143005, India
| | - Sheetal Vermani
- Department of Chemistry, Guru Nanak Dev University, Amritsar, 143005, India
| | - Varinder Kaur
- Department of Chemistry, Guru Nanak Dev University, Amritsar, 143005, India
| | - Palwinder Singh
- Department of Chemistry, Guru Nanak Dev University, Amritsar, 143005, India.
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16
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Wu C, Lv J, Fan H, Su W, Cai X, Yu J. Mechanochemical C-H Arylation and Alkylation of Indoles Using 3 d Transition Metal and Zero-Valent Magnesium. Chemistry 2024:e202304231. [PMID: 38294073 DOI: 10.1002/chem.202304231] [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: 12/19/2023] [Revised: 01/31/2024] [Accepted: 01/31/2024] [Indexed: 02/01/2024]
Abstract
Although the 3 d transition-metal catalyzed C-H functionalization have been extensively employed to promote the formation of valuable carbon-carbon bonds, the persistent problems, including the use of sensitive Grignard reagents and the rigorous operations (solvent-drying, inert gas protection, metal pre-activation and RMgX addition rate control), still leave great room for further development of sustainable methodologies. Herein, we report a mechanochemical technology toward in-situ preparation of highly sensitive organomagnesium reagents, and thus building two general 3 d transition-metal catalytic platforms that enables regioselective arylation and alkylation of indoles with a wide variety of halides (including those containing post transformable functionalities and heteroaromatic rings). This mechanochemical strategy also brings unique reactivity and high step-economy in producing functionalized N-free indole products.
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Affiliation(s)
- Chongyang Wu
- Laboratory of Pharmaceutical Engineering of Zhejiang Province, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
- Hangzhou Red Cross Hospital, Hangzhou, 310014, P. R. China
| | - Jin Lv
- Laboratory of Pharmaceutical Engineering of Zhejiang Province, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Hangqian Fan
- Laboratory of Pharmaceutical Engineering of Zhejiang Province, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Weike Su
- Laboratory of Pharmaceutical Engineering of Zhejiang Province, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Xinjun Cai
- Hangzhou Red Cross Hospital, Hangzhou, 310014, P. R. China
| | - Jingbo Yu
- Laboratory of Pharmaceutical Engineering of Zhejiang Province, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
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17
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Hu C, Liang B, Sun J, Li J, Xiong Z, Wang SH, Xuetao X. Synthesis and biological evaluation of indole derivatives containing thiazolidine-2,4-dione as α-glucosidase inhibitors with antidiabetic activity. Eur J Med Chem 2024; 264:115957. [PMID: 38029465 DOI: 10.1016/j.ejmech.2023.115957] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/12/2023] [Accepted: 11/13/2023] [Indexed: 12/01/2023]
Abstract
In order to develop potential α-glucosidase inhibitors with antidiabetic activity, twenty-six indole derivatives containing thiazolidine-2,4-dione were synthesized. All compounds presented potential α-glucosidase inhibitory activities with IC50 values ranging from 2.35 ± 0.11 to 24.36 ± 0.79 μM, respectively compared to acarbose (IC50 = 575.02 ± 10.11 μM). Especially, compound IT4 displayed the strongest α-glucosidase inhibitory activity (IC50 = 2.35 ± 0.11 μM). The inhibition mechanism of compound IT4 on α-glucosidase was clarified by the investigation of kinetics studies, fluorescence quenching, CD spectra, 3D fluorescence spectra, and molecular docking. In vivo antidiabetic experiments demonstrated that oral administration of compound IT4 would suppress fasting blood glucose level and ameliorate their glucose tolerance and dyslipidemia in diabetic mice.
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Affiliation(s)
- Chunmei Hu
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, 529020, China
| | - Bingwen Liang
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, 529020, China
| | - Jinping Sun
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, 529020, China
| | - Jiangyi Li
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, 529020, China
| | - Zhuang Xiong
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, 529020, China
| | - Shao-Hua Wang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou, 730000, China.
| | - Xu Xuetao
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, 529020, China.
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18
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Nad P, Mukherjee A. A Lewis Acid-Base Pair Catalyzed Dearomative Transformation of Unprotected Indoles via B-H Bond Activation. Chem Asian J 2023; 18:e202300714. [PMID: 37811913 DOI: 10.1002/asia.202300714] [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: 08/14/2023] [Revised: 09/29/2023] [Accepted: 10/09/2023] [Indexed: 10/10/2023]
Abstract
A sustainable and metal-free protocol has been described for the reduction of unprotected indoles. The catalytic system consists of B(C6 F5 )3 and THF as a Lewis acid-base pair that can activate the B-H bond of pincolborane (HBpin). The catalytic system encompasses a broad substrate scope. Control experiments were conducted to understand the possible catalytic intermediates involved during the present protocol.
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Affiliation(s)
- Pinaki Nad
- Department of Chemistry, Indian Institute of Technology Bhilai GEC Campus, Sejbahar, Raipur, 492015, Chhattisgarh (India
| | - Arup Mukherjee
- Department of Chemistry, Indian Institute of Technology Bhilai GEC Campus, Sejbahar, Raipur, 492015, Chhattisgarh (India
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19
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Xalxo A, Jyoti Goswami U, Sarkar S, Kandasamy T, Mehta K, Ghosh SS, Bharatam PV, Khan AT. Synthesis of 3-sulfenyl indole derivatives from 4-hydroxy-2H-chromene-2-thione and indole using oxidative cross-dehydrogenative coupling reaction and anti-proliferative activity study of some of their sulfone derivatives. Bioorg Chem 2023; 141:106900. [PMID: 37813073 DOI: 10.1016/j.bioorg.2023.106900] [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: 08/04/2023] [Revised: 09/28/2023] [Accepted: 09/29/2023] [Indexed: 10/11/2023]
Abstract
The synthesis of hitherto unreported 3-sulfenylindole derivatives is achieved from 4-hydroxy-2H-chromene-2-thione (1) and indole (2) by employing an oxidative cross-dehydrogenative coupling reaction using a combination of 10 mol% of molecular iodine and 1 equivalent of TBHP in DMSO at room temperature. Then, the 3-sulfenylindole derivatives 3a, 3b, 3d, 3f, 3 h, and 3 k were converted into their corresponding sulfone derivatives because of lead likeness properties. Subsequently, a target prediction and docking study of six sulfone derivatives (5a-f) was performed, and four sulfones, namely 5a, 5d, 5e, and 5f, were selected for further in-vitro studies. The four sulfones mentioned above exhibited prominent anti-proliferative activity on breast cancer (MCF7) cell lines. In addition, this reaction was exergonic through quantum chemical analysis of the mechanistic steps. The salient features of this reaction are mild reaction conditions, good yields, and broad substrate scope.
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Affiliation(s)
- Anjela Xalxo
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Ujjwal Jyoti Goswami
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Shilpi Sarkar
- Department of Bioscience and Engineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Thirukumaran Kandasamy
- Department of Bioscience and Engineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Kriti Mehta
- National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Mohali, 160062, Punjab
| | - Siddhartha S Ghosh
- Department of Bioscience and Engineering, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Prasad V Bharatam
- National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Mohali, 160062, Punjab.
| | - Abu T Khan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
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20
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Al-Wahaibi LH, Mohammed AF, Abdel Rahman FEZS, Abdelrahman MH, Gu X, Trembleau L, Youssif BGM. Design, synthesis, apoptotic, and antiproliferative effects of 5-chloro-3- (2-methoxyvinyl)- indole-2-carboxamides and pyrido[3,4-b]indol-1-ones as potent EGFR WT/EGFR T790M inhibitors. J Enzyme Inhib Med Chem 2023; 38:2218602. [PMID: 37254958 DOI: 10.1080/14756366.2023.2218602] [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] [Indexed: 06/01/2023] Open
Abstract
A new series of indole-2-carboxamides 5a-g, 6a-f and pyrido[3,4-b]indol-1-ones 7a and 7b have been developed as new antiproliferative agents that target both wild and mutant type EGFR. The antiproliferative effect of the new compounds was studied. 5c, 5d, 5f, 5 g, 6e, and 6f have the highest antiproliferative activity with GI50 values ranging from 29 nM to 47 nM in comparison to the reference erlotinib (GI50 = 33 nM). Compounds 5d, 5f, and 5 g inhibited EGFRWT with IC50 values ranging from 68 to 85 nM while the GI50 of erlotinib is 80 nM. Moreover, compounds 5f and 5 g had the most potent inhibitory activity against EGFRT790M with IC50 values of 9.5 ± 2 and 11.9 ± 3 nM, respectively, being equivalent to the reference osimertinib (IC50 = 8 ± 2 nM). Compounds 5f and 5 g demonstrated excellent caspase-3 protein overexpression levels of 560.2 ± 5.0 and 542.5 ± 5.0 pg/mL, respectively, being more active than the reference staurosporine (503.2 ± 4.0 pg/mL). they also increase the level of caspase 8, and Bax while decreasing the levels of anti-apoptotic Bcl2 protein. Computational docking studies supported the enzyme inhibition results and provided favourable dual binding modes for both compounds 5f and 5 g within EGFRWT and EGFRT790M active sites. Finally, in silico ADME/pharmacokinetic studies predict good safety and pharmacokinetic profile of the most active compounds.
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Affiliation(s)
- Lamya H Al-Wahaibi
- Department of Chemistry, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Anber F Mohammed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | | | - Mostafa H Abdelrahman
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Xuyuan Gu
- School of Natural and Computing Sciences, University of Aberdeen, Aberdeen, UK
| | - Laurent Trembleau
- School of Natural and Computing Sciences, University of Aberdeen, Aberdeen, UK
| | - Bahaa G M Youssif
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt
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21
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Peng Q, Huang M, Xu G, Zhu Y, Shao Y, Tang S, Zhang X, Sun J. Asymmetric N-Alkylation of 1H- Indoles via Carbene Insertion Reaction. Angew Chem Int Ed Engl 2023; 62:e202313091. [PMID: 37819054 DOI: 10.1002/anie.202313091] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/11/2023] [Accepted: 10/11/2023] [Indexed: 10/13/2023]
Abstract
An intermolecular enantioselective N-alkylation reaction of 1H-indoles has been developed by cooperative rhodium and chiral phosphoric acid catalyzed N-H bond insertion reaction. N-Alkyl indoles with newly formed stereocenter adjacent to the indole nitrogen atom are produced in good yields (up to 95 %) with excellent enantioselectivities (up to >99 % ee). Importantly, both α-aryl and α-alkyl diazoacetates are tolerated, which is extremely rare in asymmetric X-H (X=N, O, S et al.) and C-H insertion reactions. With this method, only 0.1 mol % of rhodium catalyst and 2.5 mol % of chiral phosphoric acid are required to complete the conversion as well as achieve the high enantioselectivity. Computational studies reveal the cooperative relay of rhodium and chiral phosphoric acid, and the origin of the chemo and stereoselectivity.
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Affiliation(s)
- Quanxin Peng
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
| | - Meirong Huang
- Shenzhen Bay Laboratory, Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, 518055, Shenzhen, China
| | - Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
| | - Yan Zhu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
| | - Ying Shao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
| | - Xinhao Zhang
- Shenzhen Bay Laboratory, Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, 518055, Shenzhen, China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, 213164, Changzhou, China
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22
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Zhou XM, Li QY, Lu X, Bheemanaboina RRY, Fang B, Cai GX, Zhou CH. Identification of unique indolylcyanoethylenyl sulfonylanilines as novel structural scaffolds of potential antibacterial agents. Eur J Med Chem 2023; 260:115773. [PMID: 37669594 DOI: 10.1016/j.ejmech.2023.115773] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/22/2023] [Accepted: 08/26/2023] [Indexed: 09/07/2023]
Abstract
The increasing incidence of antibiotic resistance has forced the development of unique antimicrobials with novel multitargeting mechanisms to combat infectious diseases caused by multidrug-resistant pathogens. Structurally unique indolylcyanoethylenyl sulfonylanilines (ISs) were exploited as novel promising antibacterial agents to confront stubborn drug resistance. Some prepared ISs possessed favorable bacteriostatic action towards the tested bacteria. Especially, hydroxyethyl IS 14a exerted 8-fold more potent inhibitory efficacy against multidrug-resistant A. baumannii and E. coli 25922 with the low MIC of 0.5 μg/mL than norfloxacin, and showed low cell toxicity and rapid bactericidal property. Moreover, this compound also possessed obvious effect of eradicating bacterial biofilm, which could effectually relieve the development of drug resistance. A preliminary assessment of the antibacterial mechanism indicated that compound 14a could disintegrate membrane integrity leading to the leakage of intracellular protein, inactivation of lactate dehydrogenase and metabolism inhibition. Hydroxyethyl IS 14a mediated the accumulation of excess reactive oxygen species, which further contributed to reducing glutathione, resulting in oxidative damage to bacteria. Furthermore, IS 14a could intercalate into DNA to hinder the biological function of DNA. Quantum chemical study disclosed that IS 14a with the lowest energy gap was conducive to displaying high bioactivity. These findings demonstrated that hydroxyethyl IS 14a as a prospective antimicrobial candidate for combating A. baumannii and E. coli 25922 would be a promising starting point.
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Affiliation(s)
- Xue-Mei Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Aplied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Qian-Yue Li
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Aplied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Xing Lu
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Aplied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Rammohan R Yadav Bheemanaboina
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Aplied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Bo Fang
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, Chongqing Key Laboratory of Kinase Modulators as Innovative Medicine, Chongqing University of Arts and Sciences, Chongqing, 402160, PR China.
| | - Gui-Xin Cai
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Aplied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China.
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Aplied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China.
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23
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Yap CH, Ramle AQ, Lim SK, Rames A, Tay ST, Chin SP, Kiew LV, Tiekink ERT, Chee CF. Synthesis and Staphylococcus aureus biofilm inhibitory activity of indolenine-substituted pyrazole and pyrimido[1,2-b]indazole derivatives. Bioorg Med Chem 2023; 95:117485. [PMID: 37812886 DOI: 10.1016/j.bmc.2023.117485] [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: 05/19/2023] [Revised: 09/27/2023] [Accepted: 09/27/2023] [Indexed: 10/11/2023]
Abstract
Staphylococcus aureus is a highly adaptable opportunistic pathogen that can form biofilms and generate persister cells, leading to life-threatening infections that are difficult to treat with antibiotics alone. Therefore, there is a need for an effective S. aureus biofilm inhibitor to combat this public health threat. In this study, a small library of indolenine-substituted pyrazoles and pyrimido[1,2-b]indazole derivatives were synthesised, of which the hit compound exhibited promising antibiofilm activities against methicillin-susceptible S. aureus (MSSA ATCC 29213) and methicillin-resistant S. aureus (MRSA ATCC 33591) at concentrations significantly lower than the planktonic growth inhibition. The hit compound could prevent biofilm formation and eradicate mature biofilms of MSSA and MRSA, with a minimum biofilm inhibitory concentration (MBIC50) value as low as 1.56 µg/mL and a minimum biofilm eradication concentration (MBEC50) value as low as 6.25 µg/mL. The minimum inhibitory concentration (MIC) values of the hit compound against MSSA and MRSA were 50 µg/mL and 25 µg/mL, respectively, while the minimum bactericidal concentration (MBC) values against MSSA and MRSA were > 100 µg/mL. Preliminary structure-activity relationship analysis reveals that the fused benzene ring and COOH group of the hit compound are crucial for the antibiofilm activity. Additionally, the compound was not cytotoxic to human alveolar A549 cells, thus highlighting its potential as a suitable candidate for further development as a S. aureus biofilm inhibitor.
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Affiliation(s)
- Cheng Hong Yap
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Abdul Qaiyum Ramle
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - See Khai Lim
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Avinash Rames
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Sun Tee Tay
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Sek Peng Chin
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Lik Voon Kiew
- Department of Pharmacology, Faculty of Medicine, Universiti Malaya, 50603 Kuala Lumpur, Malaysia; Department of Biological Science and Technology, National Yang Ming Chiao Tung University, 30068 Hsinchu, Taiwan, Republic of China
| | - Edward R T Tiekink
- Research Centre for Crystalline Materials, School of Medical and Life Sciences, Sunway University, 47500, Selangor Darul Ehsan, Malaysia
| | - Chin Fei Chee
- Nanotechnology and Catalysis Research Centre, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
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24
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Bresciani G, Cervinka J, Kostrhunova H, Biancalana L, Bortoluzzi M, Pampaloni G, Novohradsky V, Brabec V, Marchetti F, Kasparkova J. N-Indolyl diiron vinyliminium complexes exhibit antiproliferative effects in cancer cells associated with disruption of mitochondrial homeostasis, ROS scavenging, and antioxidant activity. Chem Biol Interact 2023; 385:110742. [PMID: 37802407 DOI: 10.1016/j.cbi.2023.110742] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/23/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023]
Abstract
The indole scaffold has been established as a key organic moiety for developing new drugs; on the other hand, a range of diiron bis-cyclopentadienyl complexes have recently emerged for their promising anticancer potential. Here, we report the synthesis of novel diiron complexes with an indole-functionalized vinyliminium ligand (2-5) and an indole-lacking analogue for comparative purposes (6), which were characterized by analytical and spectroscopic techniques. Complexes 2-6 are substantially stable in DMSO‑d6 and DMEM-d solutions at 37 °C (8% average degradation after 48 h) and display a balanced hydrophilic/lipophilic behaviour (LogPow values in the range -0.32 to 0.47), associated with appreciable water solubility. The complexes display selective antiproliferative potency towards several cancer cells in monolayer cultures, mainly in the low micromolar range, with reduced toxicity towards noncancerous epithelial cells. Thus, the cytotoxicity of the complexes is comparable to or better than clinically used metallopharmaceutical cisplatin. Comparing the antiproliferative activity obtained for complexes containing different ligands, we confirmed the importance of the indolyl group in the mechanism of antiproliferative activity of these complexes. Cell-based mechanistic studies suggest that the investigated diiron vinyliminium complexes (DVCs) show cytostatic rather than cytotoxic effects and subsequently induce a population of cells to undergo apoptosis. Furthermore, the molecular mechanism of action involves interactions with mitochondrial DNA and proteins, the reactive oxygen species (ROS)-scavenging properties and antioxidant activity of these complexes in cancer cells. This study highlights the importance of DVCs to their cancer cell activity and reinforces their prospective therapeutic potential as anticancer agents.
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Affiliation(s)
- Giulio Bresciani
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124, Pisa, Italy
| | - Jakub Cervinka
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61200, Brno, Czech Republic; Masaryk University, Faculty of Science, Department of Biochemistry, Kamenice 5, CZ-62500, Brno, Czech Republic
| | - Hana Kostrhunova
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61200, Brno, Czech Republic
| | - Lorenzo Biancalana
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124, Pisa, Italy
| | - Marco Bortoluzzi
- Ca' Foscari University of Venice, Department of Molecular Sciences and Nanosystems, Via Torino 155, I-30175, Mestre, Venezia, Italy
| | - Guido Pampaloni
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124, Pisa, Italy
| | - Vojtech Novohradsky
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61200, Brno, Czech Republic
| | - Viktor Brabec
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61200, Brno, Czech Republic; Department of Biophysics, Palacky University, Slechtitelu 27, CZ-78371, Olomouc, Czech Republic
| | - Fabio Marchetti
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124, Pisa, Italy.
| | - Jana Kasparkova
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61200, Brno, Czech Republic.
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25
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Liu X, Zhou Y, Qi X, Li R, Liu P, Dong G. Palladium/Norbornene-Catalyzed Direct Vicinal Di-Carbo-Functionalization of Indoles: Reaction Development and Mechanistic Study. Angew Chem Int Ed Engl 2023; 62:e202310697. [PMID: 37672173 PMCID: PMC10591888 DOI: 10.1002/anie.202310697] [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: 07/25/2023] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/07/2023]
Abstract
Methods that can simultaneously install multiple different functional groups to heteroarenes via C-H functionalizations are valuable for complex molecule synthesis, which, however, remain challenging to realize. Here we report the development of vicinal di-carbo-functionalization of indoles in a site- and regioselective manner, enabled by the palladium/norbornene (Pd/NBE) cooperative catalysis. The reaction is initiated by the Pd(II)-mediated C3-metalation and specifically promoted by the C1-substituted NBEs. The mild, scalable, and robust reaction conditions allow for a good substrate scope and excellent functional group tolerance. The resulting C2-arylated C3-alkenylated indoles can be converted to diverse synthetically useful scaffolds. The combined experimental and computational mechanistic study reveals the unique role of the C1-substituted NBE in accelerating the turnover-limiting oxidative addition step.
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Affiliation(s)
- Xin Liu
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
| | - Yun Zhou
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
| | - Xiaotian Qi
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Renhe Li
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, IL 60637, USA
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26
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Ranhotra HS. Discrete interplay of gut microbiota L-tryptophan metabolites in host biology and disease. Mol Cell Biochem 2023:10.1007/s11010-023-04867-0. [PMID: 37861881 DOI: 10.1007/s11010-023-04867-0] [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: 06/14/2023] [Accepted: 09/24/2023] [Indexed: 10/21/2023]
Abstract
The gut microbiota and the host maintain a conjoint relationship and together achieve optimal physiology via a multitude of interactive signalling cues. Dietary-derived L-tryptophan (L-trp) is enzymatically metabolized by the resident symbiotic gut microbiota to indole and various indole derivatives. Indole and indole metabolites secreted by the gut bacteria act locally in the intestinal cells as well as distally and modulate tissue-specific functions which are beneficial to the host. Functions attributed to these microbial indole metabolites in the host include regulation of intestinal permeability, immunity and mucosal roles, inflammation, and insulin sensitivity. On the other hand, dysregulation of gut microbiota L-trp metabolism compromises the optimal availability of indole and indole metabolites and can induce the onset of metabolic disorders, inflammation, liver steatosis, and decrease gut barrier integrity. Gut dysbiosis is regarded as one of the prime reasons for this deregulated microbial-derived indole metabolites. A number of indole metabolites from the gut bacteria have been identified recently displaying variable affinity towards xenobiotic nuclear receptors. Microbial metabolite mimicry concept can be used to design and develop novel indole-moiety-containing compounds with higher affinity towards the receptors and efficacy in preclinical studies. Such compounds may serve as therapeutic drugs in clinical trials in the future. In this article, I review L-trp metabolism in the host and gut microbiota and the various physiological functions, patho-physiologies associated with the microbial-released indole metabolites in the host, including the metabolite mimicry-based concept to develop tailored indole-containing novel experimental drugs.
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Affiliation(s)
- Harmit S Ranhotra
- Department of Biochemistry, St. Edmund's College, Shillong, 793 003, India.
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27
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Prache S, Rey-Cadilhac L, Prunier A. Change in fat skatole and indole content in lambs switched from a concentrate-based diet indoors to alfalfa grazing for various durations before slaughter. Meat Sci 2023; 204:109272. [PMID: 37413886 DOI: 10.1016/j.meatsci.2023.109272] [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: 03/01/2023] [Revised: 05/19/2023] [Accepted: 06/28/2023] [Indexed: 07/08/2023]
Abstract
Meat from lambs fattened on alfalfa is at risk of excessive pastoral flavours due to high levels of in-fat volatile indolic compounds (especially, skatole). Skatole has also been identified as a potential marker of interest for authenticating pasture-fed lamb meat. Here, we investigated the change in skatole and indole concentrations in kidney fat from lambs switched from an indoor-fed concentrate based diet to outdoor alfalfa grazing for various durations (0, 21, 42, 63 days) before slaughter. The study used a total of 219 lambs over 3 consecutive years. Kidney-fat skatole and indole concentrations increased from as early as 21 days on alfalfa, and then reached a plateau. Similarly, the proportion of lambs that had a kidney fat-skatole concentration above 0.15 μg/g liquid fat, a value that has been established as a sensory rejection threshold for pork, increased significantly from as early as 21 days on alfalfa and then reached a plateau. This value was reached or exceeded in a significant proportion of lambs fattened on alfalfa pastures (45.1%). However, skatole was not detected in kidney fat from 20 out of 164 alfalfa-fattened lambs (i.e., 12.2%) but was detected in 15 out of 55 concentrate-fed lambs (i.e., 27.3%). We thus conclude that while skatole content in kidney fat can inform on dietary changes made shortly before slaughter, it does not have the discrimination power needed to reliably authenticate pasture-fed lamb meat, let alone duration of finishing on pasture.
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Affiliation(s)
- Sophie Prache
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 St-Genès-Champanelle, France.
| | - Lucille Rey-Cadilhac
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR Herbivores, F-63122 St-Genès-Champanelle, France
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28
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Azmy EM, Hagras M, Ewida MA, Doghish AS, Gamil Khidr E, El-Husseiny AA, Gomaa MH, Refaat HM, Ismail NSM, Nassar IF, Lashin WH. Development of pyrolo[2,3-c]pyrazole, pyrolo[2,3-d]pyrimidine and their bioisosteres as novel CDK2 inhibitors with potent in vitro apoptotic anti-proliferative activity: Synthesis, biological evaluation and molecular dynamics investigations. Bioorg Chem 2023; 139:106729. [PMID: 37467621 DOI: 10.1016/j.bioorg.2023.106729] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [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: 06/05/2023] [Revised: 06/26/2023] [Accepted: 07/08/2023] [Indexed: 07/21/2023]
Abstract
Inhibiting the CDK2/cyclin A2 enzyme has been validated in multiple clinical manifestations related to multiple types of cancer. Herein, novel series of pyrolo[2,3-c]pyrazole, pyrolo[2,3-c]isoaxazole and pyrolo[2,3-d]pyrimidine, pyrolo[3,2-c]pyridine & indole based analogs were designed, synthesized and biologically evaluated for their in vitro antiproliferative activity where the obtained results revealed that most of the newly synthesized compounds showed significant cytotoxic activity towards MCF-7 (breast cancer cell lines) and HepG-2 (hepatocellular carcinoma) with IC50 ranging from 3.20 µM to 10.05 µM & from 2.18 µM to 13.49 µM, respectively, compared to that of Sorafenib (IC50 9.76 & 13.19 µM, respectively). The in vitro inhibitory profile of the most promising compounds (9, 11, 14, 15, 16, 17 and 20) towards CDK2/CyclinA2 was evaluated. Compounds 14 & 15 exhibited potent inhibitory profile against CDK2 with (IC50 0.11 and 0.262 µM, respectively comparable to Sorafenib IC50 0.184 µM. Western blotting of 14 & 15 at MCF-7 cell line confirmed the diminishing activity on CDK2. Furthermore, both compounds exserted a significant cell cycle arrest and apoptosis. Moreover, the normal cell line cytotoxicity for both compounds revealed low cytotoxic results in normal cells rather than cancer cells. Molecular docking and dynamic simulation validated the potentiality of the newly synthesized compounds to have high binding affinity within CDK2 binding pocket. 3DQSAR pharmacophore, in-silico ADME/TOPKAT studies and drug-likeness showed proper pharmacokinetic properties and helped in structure requirements prediction. The obtained model and pattern of substitution could be used for further development of CDK2 inhibitors.
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Affiliation(s)
- Eman M Azmy
- Chemistry Department, Faculty of Women, Ain Shams University, Heliopolis, Egypt
| | - Mohamed Hagras
- Department of Pharmaceutical Organic Chemistry, College of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Menna A Ewida
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Future University in Egypt, Cairo 11835, Egypt
| | - Ahmed S Doghish
- Department of Biochemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt; Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City 11231, Cairo, Egypt
| | - Emad Gamil Khidr
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City 11231, Cairo, Egypt
| | - Ahmed A El-Husseiny
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City 11231, Cairo, Egypt; Department of Biochemistry, Faculty of Pharmacy, Egyptian Russian University, Badr City 11829, Cairo, Egypt
| | - Maher H Gomaa
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City 11231, Cairo, Egypt
| | - Hanan M Refaat
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Future University in Egypt, Cairo 11835, Egypt
| | - Nasser S M Ismail
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Future University in Egypt, Cairo 11835, Egypt.
| | - Ibrahim F Nassar
- Faculty of Specific Education, Ain Shams University, 365 Ramsis Street, Abassia, Cairo, Egypt
| | - Walaa H Lashin
- Chemistry Department, Faculty of Women, Ain Shams University, Heliopolis, Egypt
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29
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Manna S, Paul S, Kong WY, Aich D, Sahoo R, Tantillo DJ, Panda S. Stereodivergent Zweifel Olefination and its Mechanistic Dichotomy. Angew Chem Int Ed Engl 2023; 62:e202309136. [PMID: 37495925 DOI: 10.1002/anie.202309136] [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: 06/28/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 07/28/2023]
Abstract
Stereoselective Zweifel olefination using boronate complexes carrying two different reactive π-systems was achieved to synthesize vinyl heteroarenes and conjugated 1,3-dienes in good yield and up to 100 % stereoselectivity, which remains unexplored until now. Most importantly, we report the unprecedented formation of E vs. Z-vinyl heteroarenes for different heteroarenes under identical conditions. Density functional theory (DFT) investigations unveil the mechanistic dichotomy between olefin and heteroarene activation followed by 1,2-migration, leading to E or Z-vinyl heteroarenes respectively. We also report a previously unknown reversal of stereoselectivity by using 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) as an electrophile. The Zweifel olefination using a boronate complex that carries two different olefins was previously unexplored due to significant challenges associated with the site-selective activation of olefins. We have solved this problem and reported the site-selective activation of olefins for the stereoselective synthesis of 1,3-dienes.
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Affiliation(s)
- Samir Manna
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Swagata Paul
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Wang-Yeuk Kong
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - Debasis Aich
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Rupam Sahoo
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, CA 95616, USA
| | - Santanu Panda
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
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30
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Abdullah Al Awadh A. Biomedical applications of selective metal complexes of indole, benzimidazole, benzothiazole and benzoxazole: A review (From 2015 to 2022). Saudi Pharm J 2023; 31:101698. [PMID: 37533494 PMCID: PMC10393588 DOI: 10.1016/j.jsps.2023.101698] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/04/2023] [Indexed: 08/04/2023] Open
Abstract
Indole, benzoxazole benzothiazole and benzimidazole are excellent classes of organic heterocyclic compounds. These compounds show significant application in pharmacy, industries, dyes, medicine, polymers and food packages. These compounds also form metal complexes with copper, zinc, cadmium, nickel, cobalt, platinum, gold, palladium chromium, silver, iron, and other metals that have shown to be significant applications. Recently, researchers have attracted enormous attention toward heterocyclic compounds such as indole, benzimidazole, benzothiazole, benzoxazole, and their complexes due to their excellent medicinal applications such as anti-ulcerogenic, anti-cancer, antihypertensive, antifungal, anti-inflammatory, antitubercular, antiparasitic, anti-obesity, antimalarial, antiglycation, antiviral potency, antineuropathic, analgesic antioxidant, antihistaminic, and antibacterial potentials. In this article, we summarize the medicinal applications of these compounds as well as their metal complexes. We hope this article will help researchers in designing and synthesizing novel and potent compounds with significant applications in various fields.
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31
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Parveen K, Rafique U, Jamil I, Ashraf A. Photodegradation of Rhodamine B using gallium hybrids as an efficient photocatalyst. Environ Monit Assess 2023; 195:1106. [PMID: 37642762 DOI: 10.1007/s10661-023-11683-y] [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] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 08/07/2023] [Indexed: 08/31/2023]
Abstract
Keeping in view the toxicity of the Rhodamine B, the present study is designed to remediate the water loaded with toxic dyes using gallium oxide and gallium hybrids as photocatalyst. Precipitation coupled with sonochemical method is adopted for the synthesis of gallium oxide while the post grafting method is adopted for the synthesis of gallium hybrids with the indole and its derivatives. FTIR spectra showed the characteristic absorption bands of gallium oxide and gallium hybrids at 400-700 cm-1 and 1400-1600 cm-1. SEM and XRD showed the micro-sized rectangular rod-shaped gallium oxide with rhombohedral geometry. The average crystallite size of gallium hybrids was 26-32 nm calculated using the Debye Scherrer and Williamson-Hal models. The BET isotherm of gallium hybrids revealed the adsorption type-IV and hysteresis loop (H3) proposing multilayer and mesoporous structures with increase in surface area from 26 m2/g of gallium oxide to 31 m2/g of gallium-indole, 35 m2/g of gallium-methyl indole, and 37 m2/g of gallium-carboxylic indole. XPS showed the presence of gallium (3-14%), oxygen (28-32%), nitrogen (23-46%), and carbon (9-46%). The gallium oxide and gallium hybrids showed 47-72% optimum degradation of Rhodamine B under 2 h of illumination at pH 7 and 0.03 mg/L. The degradation rate followed a Langmuir-Hinshelwood model with R2 > 0.9.
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Affiliation(s)
- Kousar Parveen
- Department of Environmental Sciences, The Women University Multan, Multan, 66000, Pakistan.
| | - Uzaira Rafique
- Department of Environmental Sciences, Fatima Jinnah Women University, The Mall, Rawalpindi, 46000, Pakistan
| | - Ishrat Jamil
- Department of Chemistry, University of Baltistan Skardu, Gilgit-Baltistan, Pakistan
| | - Anam Ashraf
- School of Environment, Tsinghua University, Beijing, 100084, China
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32
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Al-Otaibi JS, Mary YS, Mary YS, Thomas R. Evidences of noncovalent interactions between indole and dichloromethane under different solvent conditions. J Mol Model 2023; 29:246. [PMID: 37442832 DOI: 10.1007/s00894-023-05623-3] [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: 04/22/2023] [Accepted: 06/14/2023] [Indexed: 07/15/2023]
Abstract
CONTEXT Theoretical investigation of indole (IND) and its binary combination with dichloromethane (DC) in various solvents were computed to track the impact of molecular interactions on spectral characteristics. When transitioning from plain drug to complexes, different modes of IND display a substantial shift in peak location. The 3561.26 cm-1 band shows (~15.58 cm-1) red shift upon dilution. The geometry in various solvents was calculated using quantum chemical calculation utilizing density functional theory (DFT). The highest ALIE values are located at the indole skeleton and on complexation with DC, and the ring atoms become more electron rich. The atom-centered density matrix propagation (ADMP) molecular dynamic (MD) calculation shows that the geometries optimized through the DFT calculation match the global minima effectively. MD simulations indicate that indole is more stable in water and methanol. METHODS DFT studies have been employed to study the interaction between indole and dichloromethane. CAM-B3LYP/6-311++G(d)(6D,7F) level of theory was employed using Gaussian 16 W suite. Quantum topological descriptors were discussed using quantum theory of atoms in molecules (QTAIM) with the help of Multiwfn software. Reduced density gradient (RDG) plot describes the nature of the interaction, while average local ionization energy (ALIE) explained the variation in local ionization energy of the molecular surface before and after complexation.
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Affiliation(s)
- Jamelah S Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia.
| | | | | | - Renjith Thomas
- Department of Chemistry, St. Berchmans College (Autonomous), Mahatma Gandhi University, Changanassery, Kerala, India
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Wang J, Bi H, Li M, Wang H, Xue M, Yu J, Ho CT, Zhang L, Zhuo Q, Jiang J, Wan X, Zhai X. Contribution of theanine to the temperature-induced changes in aroma profile of Wuyi rock tea. Food Res Int 2023; 169:112860. [PMID: 37254434 DOI: 10.1016/j.foodres.2023.112860] [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: 01/07/2023] [Revised: 03/21/2023] [Accepted: 04/17/2023] [Indexed: 06/01/2023]
Abstract
Theanine is a distinctive amino acid in tea that plays a vital role in tea flavor during the roasting process. Model thermal reactions of total amino acids and sugars with different roasting conditions (low-fire, middle-fire, and high-fire) showed theanine competitively inhibited the formation of indole, skatole, 4-hydroxy-2,5-dimethyl-3(2H)-furanone, and Strecker aldehydes, while greatly stimulated the production of roasty pyrazines. In addition, highest amounts of pyrazines were obtained under high-fire degree. Quantification of these reaction products in Wuyi rock tea (WRT) was realized in different roasted Dahongpao teas by means of sensomics approach. The quantitative data revealed the biggest influence of roasting temperatures on the formation of reaction products among indole, lipid oxidation products, and pyrazines, while other reaction products were only slightly affected. The findings of this study provide a fresh perspective on the impact of theanine on aroma formation during the roasting process, which will help to explore the formation of key odorants during tea production.
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Affiliation(s)
- Jing Wang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China; International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Haijun Bi
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China; International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Mengru Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China; International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Hui Wang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China; International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Manman Xue
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China; International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Jieyao Yu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China; International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Chi-Tang Ho
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China; International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | - Liang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China; International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China
| | | | | | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China; International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China.
| | - Xiaoting Zhai
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China; International Joint Laboratory on Tea Chemistry and Health Effects of Ministry of Education, Anhui Agricultural University, Hefei 230036, China.
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Philip S, Sherin DR, Kumar TKM, Badisha Banu TC, Roy RM. Molecular docking and simulation studies of some pyrazolone-based bioactive ligands targeting the NF-κB signaling pathways. Mol Divers 2023:10.1007/s11030-023-10668-w. [PMID: 37338672 DOI: 10.1007/s11030-023-10668-w] [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: 11/18/2022] [Accepted: 06/01/2023] [Indexed: 06/21/2023]
Abstract
NF-κB has become a predominant regulator responsible for multiple physiological and pathological processes. NF-κB signaling pathway has canonical and non-canonical components which strategize the cancer-related metabolic processes. Non-canonical NF-κB pathways are known to contribute towards the chemoresistance of cancer cells. Consequently, NF-κB can be utilized as a potential therapeutic target for modifying the behaviour of tumor cells. In view of this, we herein report a series of pyrazolone-based bioactive ligands that potentially target NF- κB and, thereby, unveil their anticancer properties. The pharmacological screening of the synthesized compounds were carried out using various virtual screening techniques. The anticancer studies of synthesized pyrazolones showed that APAU exhibited the most potent effect against the MCF-7 cells with an IC50 value of 30 μg/ml. Molecular docking studies revealed that the pyrazolones inhibited cell proliferation by targeting the NFκB signaling pathway. The molecular dynamics simulation studies predicted the stability and flexibility of pyrazolone-based bioactive ligands.
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Affiliation(s)
- Surya Philip
- Department of Chemistry, Mar Thoma College, Tiruvalla, Kerala, 689103, India.
| | - D R Sherin
- Kerala University of Digital Sciences, Innovation and Technology (KUDSIT), Thiruvananthapuram, 695581, India
| | - T K Manoj Kumar
- Kerala University of Digital Sciences, Innovation and Technology (KUDSIT), Thiruvananthapuram, 695581, India
| | - T C Badisha Banu
- Department of Chemistry, Mar Thoma College, Tiruvalla, Kerala, 689103, India
| | - Reny Mary Roy
- Department of Chemistry, Mar Thoma College, Tiruvalla, Kerala, 689103, India
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Emadi M, Mosavizadeh-Marvest F, Asadipour A, Pourshojaei Y, Hosseini S, Mojtabavi S, Faramarzi MA, Larijani B, Mohammadi-Khanaposhtani M, Mahdavi M. Indole-carbohydrazide linked phenoxy-1,2,3-triazole-N-phenylacetamide derivatives as potent α-glucosidase inhibitors: design, synthesis, in vitro α-glucosidase inhibition, and computational studies. BMC Chem 2023; 17:56. [PMID: 37316931 DOI: 10.1186/s13065-023-00971-w] [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: 10/30/2022] [Accepted: 05/30/2023] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND A new series of indole-carbohydrazide-phenoxy-1,2,3-triazole-N-phenylacetamide hybrids 11a-o was designed based on molecular hybridization of the active pharmacophores of the potent α-glucosidase inhibitors. These compounds were synthesized and evaluated against α-glucosidase. METHODS The 15 various derivatives of indole-carbohydrazide-phenoxy-1,2,3-triazole-N-phenylacetamide scaffold were synthesized, purified, and fully characterized. These derivatives were evaluated against yeast α-glucosidase in vitro and in silico. ADMET properties of the most potent compounds were also predicted. RESULTS All new derivatives 11a-o (IC50 values = 6.31 ± 0.03-49.89 ± 0.09 µM) are excellent α-glucosidase inhibitors in comparison to acarbose (IC50 value = 750.0 ± 10.0 µM) that was used as a positive control. Representatively, (E)-2-(4-((4-((2-(1H-indole-2-carbonyl)hydrazono)methyl) phenoxy)methyl)-1H-1,2,3-triazol-1-yl)-N-(4-methoxyphenyl)acetamide 11d with IC50 = 6.31 µM against MCF-7 cells, was 118.8-times more potent than acarbose. This compound is an uncompetitive inhibitor against α-glucosidase and showed the lowest binding energy at the active site of this enzyme in comparison to other potent compounds. Furthermore, computational calculations predicted that compound 11d can be an orally active compound. CONCLUSION According to obtained data, compound 11d can be a valuable lead compound for further structural development and assessments to obtain effective and potent new α-glucosidase inhibitors.
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Affiliation(s)
- Mehdi Emadi
- Electrical and Computer Engineering Department, Babol Noshirvani University of Technology, Babol, Iran
| | - Fahimeh Mosavizadeh-Marvest
- Department of Medicinal Chemistry, Faculty of Pharmacy & Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Asadipour
- Department of Medicinal Chemistry, Faculty of Pharmacy & Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Yaghoub Pourshojaei
- Department of Medicinal Chemistry, Faculty of Pharmacy & Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
- Extremophile and Productive Microorganisms Research Center, Kerman University of Medical Sciences, Kerman, Iran.
| | | | - Somayeh Mojtabavi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Mohammadi-Khanaposhtani
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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Mam B, Tsitsanou KE, Liggri PGV, Saitta F, Stamati ECV, Mahita J, Leonis G, Drakou CE, Papadopoulos M, Arnaud P, Offmann B, Fessas D, Sowdhamini R, Zographos SE. Influence of pH on indole-dependent heterodimeric interactions between Anopheles gambiae odorant-binding proteins OBP1 and OBP4. Int J Biol Macromol 2023:125422. [PMID: 37330089 DOI: 10.1016/j.ijbiomac.2023.125422] [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: 03/07/2023] [Revised: 05/30/2023] [Accepted: 06/14/2023] [Indexed: 06/19/2023]
Abstract
Insect Odorant Binding Proteins (OBPs) constitute important components of their olfactory apparatus, as they are essential for odor recognition. OBPs undergo conformational changes upon pH change, altering their interactions with odorants. Moreover, they can form heterodimers with novel binding characteristics. Anopheles gambiae OBP1 and OBP4 were found capable of forming heterodimers possibly involved in the specific perception of the attractant indole. In order to understand how these OBPs interact in the presence of indole and to investigate the likelihood of a pH-dependent heterodimerization mechanism, the crystal structures of OBP4 at pH 4.6 and 8.5 were determined. Structural comparison to each other and with the OBP4-indole complex (3Q8I, pH 6.85) revealed a flexible N-terminus and conformational changes in the α4-loop-α5 region at acidic pH. Fluorescence competition assays showed a weak binding of indole to OBP4 that become further impaired at acidic pH. Additional Molecular Dynamic and Differential Scanning Calorimetry studies displayed that the influence of pH on OBP4 stability is significant compared to the modest effect of indole. Furthermore, OBP1-OBP4 heterodimeric models were generated at pH 4.5, 6.5, and 8.5, and compared concerning their interface energy and cross-correlated motions in the absence and presence of indole. The results indicate that the increase in pH may induce the stabilization of OBP4 by increasing its helicity, thereby enabling indole binding at neutral pH that further stabilizes the protein and possibly promotes the creation of a binding site for OBP1. A decrease in interface stability and loss of correlated motions upon transition to acidic pH may provoke the heterodimeric dissociation allowing indole release. Finally, we propose a potential OBP1-OBP4 heterodimer formation/disruption mechanism induced by pH change and indole binding.
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Affiliation(s)
- Bhavika Mam
- National Centre for Biological Sciences, Bangalore, Karnataka, India; The University of Trans-Disciplinary Health Sciences and Technology (TDU), Bangalore, Karnataka, India
| | - Katerina E Tsitsanou
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Panagiota G V Liggri
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece
| | - Francesca Saitta
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | - Evgenia C V Stamati
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece; Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece
| | - Jarjapu Mahita
- National Centre for Biological Sciences, Bangalore, Karnataka, India
| | - George Leonis
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Christina E Drakou
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Manthos Papadopoulos
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Philippe Arnaud
- Protein Engineering and Functionality Unit, UMR CNRS 6286, University of Nantes, Nantes, France
| | - Bernard Offmann
- Protein Engineering and Functionality Unit, UMR CNRS 6286, University of Nantes, Nantes, France
| | - Dimitrios Fessas
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Via Celoria 2, 20133 Milano, Italy
| | | | - Spyros E Zographos
- Institute of Chemical Biology, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece.
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Seeburger P, Forsman H, Bevilacqua G, Marques TM, Morales LO, Prado SBR, Strid Å, Hyötyläinen T, Castro-Alves V. From farm to fork… and beyond! UV enhances Aryl hydrocarbon receptor-mediated activity of cruciferous vegetables in human intestinal cells upon colonic fermentation. Food Chem 2023; 426:136588. [PMID: 37352713 DOI: 10.1016/j.foodchem.2023.136588] [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: 02/14/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/25/2023]
Abstract
While the "farm to fork" strategy ticks many boxes in the sustainability agenda, it does not go far enough in addressing how we can improve crop nutraceutical quality. Here, we explored whether supplementary ultraviolet (UV) radiation exposure during growth of broccoli and Chinese cabbage can induce bioactive tryptophan- and glucosinolate-specific metabolite accumulation thereby enhancing Aryl hydrocarbon receptor (AhR) activation in human intestinal cells. By combining metabolomics analysis of both plant extracts and in vitro human colonic fermentation extracts with AhR reporter cell assay, we reveal that human colonic fermentation of UVB-exposed Chinese cabbage led to enhanced AhR activation in human intestinal cells by 23% compared to plants grown without supplementary UV. Thus, by exploring aspects beyond "from farm to fork", our study highlights a new strategy to enhance nutraceutical quality of Brassicaceae, while also providing new insights into the effects of cruciferous vegetables on human intestinal health.
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Affiliation(s)
- P Seeburger
- Man-Technology-Environment Research Centre, School of Science and Technology, Örebro University, 702 81 Örebro, Sweden
| | - H Forsman
- Man-Technology-Environment Research Centre, School of Science and Technology, Örebro University, 702 81 Örebro, Sweden
| | - G Bevilacqua
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 703 62 Örebro, Sweden; School of Human Health Sciences, University of Florence, 501 34 Florence, Italy
| | - T M Marques
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 703 62 Örebro, Sweden
| | - L O Morales
- Life Science Centre, School of Science and Technology, Örebro University, 702 81 Örebro, Sweden
| | - S B R Prado
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 703 62 Örebro, Sweden
| | - Å Strid
- Life Science Centre, School of Science and Technology, Örebro University, 702 81 Örebro, Sweden
| | - T Hyötyläinen
- Man-Technology-Environment Research Centre, School of Science and Technology, Örebro University, 702 81 Örebro, Sweden
| | - V Castro-Alves
- Man-Technology-Environment Research Centre, School of Science and Technology, Örebro University, 702 81 Örebro, Sweden.
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Chaubisa P, Dharmendra D, Vyas Y, Chundawat P, Jangid NK, Ameta C. Synthesis and characterization of PANI and PANI- indole copolymer and study of their antimalarial and antituberculosis activity. Polym Bull (Berl) 2023:1-21. [PMID: 37362957 PMCID: PMC10243275 DOI: 10.1007/s00289-023-04873-8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/31/2023] [Accepted: 05/28/2023] [Indexed: 06/28/2023]
Abstract
The preparation of polyaniline (PANI) and its copolymer with indole involved a chemical oxidative polymerization method, with benzene sulfonic acid (BSA, C6H6O3S) used as a dopant and potassium persulfate (PPS, K2S2O8) as an oxidant. The synthesized compounds underwent characterization using FTIR, 1H-NMR, TGA, and GPC techniques, which allowed the calculation of their average molecular weight and polydispersity index (PDI) through the GPC technique. The PDI values of the PANI copolymer with indole in different aniline-to-indole ratios were 1.53, 1.13, and 1.532 for 1:1, 1:2, and 2:1 ratios, respectively. Thermal stability was determined using TGA, revealing that the indole heterocyclic compound increased the inflexibility of the polymer chains in the synthesized PANI copolymer. The structure of the copolymer was further analyzed using 1HNMR and FTIR techniques, which confirmed the existence of benzenoid and quinoid groups in the PANI-indole copolymers, as well as the effect of doping on the polymer chains. The antibacterial and antifungal properties of the copolymers were studied against several bacterial and fungal strains and measured in terms of minimum inhibitory concentration. Results indicated that the inhibition rate of the PANI-indole copolymer on S. pyogenus (MTCC 442) was higher than that of standard drugs and individual PANI. The PANI-indole copolymers also displayed excellent antituberculosis and antimalarial activities, with the synthesized copolymer showing better outcomes than individual PANI.
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Affiliation(s)
- Purnima Chaubisa
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan India
| | | | - Yogeshwari Vyas
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan India
| | - Priyanka Chundawat
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan India
| | | | - Chetna Ameta
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, Rajasthan India
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Lin F, Sun M, Gao J, Zhang B, Mao Q, Bao Z, Shen C, Li Q, Wang H, Wang S. Identification of 5-[5-cyano-1-(pyridin-2-ylmethyl)-1H- indole-3-carboxamido] thiazole-4-carboxylic acid as a promising dual inhibitor of urate transporter 1 and xanthine oxidase. Eur J Med Chem 2023; 257:115532. [PMID: 37295161 DOI: 10.1016/j.ejmech.2023.115532] [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: 03/23/2023] [Revised: 05/18/2023] [Accepted: 05/27/2023] [Indexed: 06/12/2023]
Abstract
In combination with allopurinol, tranilast is used as an urate transporter 1 (URAT1) inhibitor for the treatment of hyperuricemia, but its structure-activity relationship concerning URAT1 inhibitory activity is rarely studied. In this paper, analogs 1-30 were designed and synthesized using scaffold hopping strategy on the basis of tranilast and the privileged scaffold indole. Then, URAT1 activity was evaluated using 14C-uric acid uptake assay with HEK293-URAT1 overexpressing cells. Compared with tranilast (inhibitory rate = 44.9% at 10 μM), most compounds displayed apparent inhibitory effects, ranging from 40.0% to 81.0% at 10 μM on URAT1. Surprisingly, along with the bringing in of a cyano group at the 5-position of indole ring, compounds 26 and 28-30 exerted xanthine oxidase (XO) inhibitory activity. In particular, compound 29 presented potency on URAT1 (48.0% at 10 μM) and XO (IC50 = 1.01 μM). Molecular simulation analysis revealed that the basic structure of compound 29 had an affinity with URAT1, and XO. Furthermore, compound 29 demonstrated a significant hypouricemic effect in a potassium oxonate-induced hyperuricemia rat model at an oral dose of 10 mg/kg during in vivo tests. In summary, tranilast analog 29 was identified as a potent dual-target inhibitor of URAT1 and XO, and a promising lead compound for further investigation.
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Affiliation(s)
- Fengwei Lin
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang, 110016, China
| | - Ming Sun
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang, 110016, China
| | - Jun Gao
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang, 110016, China
| | - Bing Zhang
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang, 110016, China
| | - Qing Mao
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang, 110016, China
| | - Ziyang Bao
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang, 110016, China
| | - Chao Shen
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang, 110016, China
| | - Qiuhua Li
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang, 110016, China
| | - Han Wang
- Department of Orthopaedics, The First Hospital of China Medical University, Shenyang, 110001, China.
| | - Shaojie Wang
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 103 Culture Road, Shenhe District, Shenyang, 110016, China.
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Gioé-Gallo C, Ortigueira S, Brea J, Raïch I, Azuaje J, Paleo MR, Majellaro M, Loza MI, Salas CO, García-Mera X, Navarro G, Sotelo E. Pharmacological insights emerging from the characterization of a large collection of synthetic cannabinoid receptor agonists designer drugs. Biomed Pharmacother 2023; 164:114934. [PMID: 37236027 DOI: 10.1016/j.biopha.2023.114934] [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: 12/28/2022] [Revised: 04/01/2023] [Accepted: 05/22/2023] [Indexed: 05/28/2023] Open
Abstract
Synthetic cannabinoid receptor agonists (SCRAs) constitute the largest and most defiant group of abuse designer drugs. These new psychoactive substances (NPS), developed as unregulated alternatives to cannabis, have potent cannabimimetic effects and their use is usually associated with episodes of psychosis, seizures, dependence, organ toxicity and death. Due to their ever-changing structure, very limited or nil structural, pharmacological, and toxicological information is available to the scientific community and the law enforcement offices. Here we report the synthesis and pharmacological evaluation (binding and functional) of the largest and most diverse collection of enantiopure SCRAs published to date. Our results revealed novel SCRAs that could be (or may currently be) used as illegal psychoactive substances. We also report, for the first time, the cannabimimetic data of 32 novel SCRAs containing an (R) configuration at the stereogenic center. The systematic pharmacological profiling of the library enabled the identification of emerging Structure-Activity Relationship (SAR) and Structure-Selectivity Relationship (SSR) trends, the detection of ligands exhibiting incipient cannabinoid receptor type 2 (CB2R) subtype selectivity and highlights the significant neurotoxicity of representative SCRAs on mouse primary neuronal cells. Several of the new emerging SCRAs are currently expected to have a rather limited potential for harm, as the evaluation of their pharmacological profiles revealed lower potencies and/or efficacies. Conceived as a resource to foster collaborative investigation of the physiological effects of SCRAs, the library obtained can contribute to addressing the challenge posed by recreational designer drugs.
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Affiliation(s)
- Claudia Gioé-Gallo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Sandra Ortigueira
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - José Brea
- Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CiMUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain.
| | - Iu Raïch
- Department of Biochemistry and Physiology, School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona 08028, Spain; Institute of Neurosciences (NeuroUB), Campus Mundet, University of Barcelona, Barcelona 08035, Spain
| | - Jhonny Azuaje
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - M Rita Paleo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Maria Majellaro
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - María Isabel Loza
- Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CiMUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Cristian O Salas
- Department of Organic Chemistry, Faculty of Chemistry and Pharmacy, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| | - Xerardo García-Mera
- Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Gemma Navarro
- Department of Biochemistry and Physiology, School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona 08028, Spain; Institute of Neurosciences (NeuroUB), Campus Mundet, University of Barcelona, Barcelona 08035, Spain.
| | - Eddy Sotelo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain.
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41
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Liu Y, Pei Z, Pan T, Wang H, Chen W, Lu W. Indole metabolites and colorectal cancer: Gut microbial tryptophan metabolism, host gut microbiome biomarkers, and potential intervention mechanisms. Microbiol Res 2023; 272:127392. [PMID: 37119643 DOI: 10.1016/j.micres.2023.127392] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 03/01/2023] [Revised: 04/21/2023] [Accepted: 04/22/2023] [Indexed: 05/01/2023]
Abstract
Tryptophan (Trp) functions in host-disease interactions. Its metabolism is a multi-pathway process. Indole and its derivatives are Trp metabolites unique to the human gut microbiota. Changes in Trp metabolism have also been detected in colorectal cancer (CRC). Here, combined with the existing CRC biomarkers, we ascribed it to the altered bacteria having the indole-producing ability by making a genomic prediction. We also reviewed the anti-inflammatory and possible anti-cancer mechanisms of indoles, including their effects on tumor cells, the ability to repair the gut barrier, regulation of the host immune system, and provide resistance against oxidative stress. Indole and its derivatives, along with related bacteria, could be targeted as auxiliary strategies to restrain cancer development in the future.
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Affiliation(s)
- Yufei Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Zhangming Pei
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Tong Pan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Hongchao Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, PR China
| | - Wenwei Lu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, PR China.
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42
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Chunxiao D, Ma F, Wu W, Li S, Yang J, Chen Z, Lian S, Qu Y. Metagenomic analysis reveals indole signaling effect on microbial community in sequencing batch reactors: Quorum sensing inhibition and antibiotic resistance enrichment. Environ Res 2023; 229:115897. [PMID: 37054839 DOI: 10.1016/j.envres.2023.115897] [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: 03/08/2023] [Revised: 04/09/2023] [Accepted: 04/11/2023] [Indexed: 05/05/2023]
Abstract
Indole is an essential signal molecule in microbial studies. However, its ecological role in biological wastewater treatments remains enigmatic. This study explores the links between indole and complex microbial communities using sequencing batch reactors exposed to 0, 15, and 150 mg/L indole concentrations. A concentration of 150 mg/L indole enriched indole degrader Burkholderiales, while pathogens, such as Giardia, Plasmodium, and Besnoitia were inhibited at 15 mg/L indole concentration. At the same time, indole reduced the abundance of predicted genes in the "signaling transduction mechanisms" pathway via the Non-supervised Orthologous Groups distributions analysis. Indole significantly decreased the concentration of homoserine lactones, especially C14-HSL. Furthermore, the quorum-sensing signaling acceptors containing LuxR, the dCACHE domain, and RpfC showed negative distributions with indole and indole oxygenase genes. Signaling acceptors' potential origins were mainly Burkholderiales, Actinobacteria, and Xanthomonadales. Meanwhile, concentrated indole (150 mg/L) increased the total abundance of antibiotic resistance genes by 3.52 folds, especially on aminoglycoside, multidrug, tetracycline, and sulfonamide. Based on Spearman's correlation analysis, the homoserine lactone degradation genes which were significantly impacted by indole negatively correlated with the antibiotic resistance gene abundance. This study brings new insights into the effect of indole signaling on in biological wastewater treatment plants.
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Affiliation(s)
- Dai Chunxiao
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.
| | - Weize Wu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Shuzhen Li
- Aquatic Eco-Health Group, Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Jing Yang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Zhuo Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Shengyang Lian
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Yuanyuan Qu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education) and Dalian POCT Laboratory, School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China.
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43
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Zhang Q, Wang L, Su P, Yu L, Yin R, Bu Y, Hao X, Sun M, Wang S. Highly selective and sensitive determination of ceftriaxone sodium using nitrogen-rich carbon dots based on ratiometric fluorescence. Talanta 2023; 255:124205. [PMID: 36580812 DOI: 10.1016/j.talanta.2022.124205] [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: 10/14/2022] [Revised: 12/08/2022] [Accepted: 12/16/2022] [Indexed: 12/27/2022]
Abstract
Selective and sensitive determination of ceftriaxone sodium (CTR) trace residues is of great importance for food safety and environmental protection. Herein, a determination method based on ratiometric fluorescence and colorimetric method with nitrogen-rich carbon dots as fluorophore is reported. The functional surfaces of indole-derived carbon dots (I-CDs) containing nitrogen and carbon groups can be selectively bound to CTR by electrostatic forces, leading to a hindered conjugation system and deprotonation of the amine on the pyrrole ring, resulting in a distinct variety in fluorescence and absorption wavelength and intensity. With the addition of CTR, the fluorescence at 577 nm can be selectively quenched, accompanied by a new emission peak appeared at 507 nm. The limits of detection (LODs) were estimated to be 19.7 nM and 78.0 nM based on the ratiometric fluorescence method and colorimetric method, respectively. Finally, the in situ visual quantitative determination of CTR using this nanosensor was achieved by combining with the color recognizer of a smartphone, and the method was further validated by spike and recovery test in real water samples including milk, seawater, and tap water.
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Affiliation(s)
- Qiang Zhang
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Material Sciences and Technology, China University of Geosciences, Beijing 100083, China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, People's Republic of China
| | - Lingxiao Wang
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, People's Republic of China
| | - Pengchen Su
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, People's Republic of China
| | - Long Yu
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, People's Republic of China
| | - Ranhao Yin
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, People's Republic of China
| | - Yiming Bu
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, People's Republic of China
| | - Xiangyang Hao
- Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Material Sciences and Technology, China University of Geosciences, Beijing 100083, China.
| | - Mingtai Sun
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, People's Republic of China.
| | - Suhua Wang
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, People's Republic of China
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44
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Mar JS, Ota N, Pokorzynski ND, Peng Y, Jaochico A, Sangaraju D, Skippington E, Lekkerkerker AN, Rothenberg ME, Tan MW, Yi T, Keir ME. IL-22 alters gut microbiota composition and function to increase aryl hydrocarbon receptor activity in mice and humans. Microbiome 2023; 11:47. [PMID: 36894983 PMCID: PMC9997005 DOI: 10.1186/s40168-023-01486-1] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 02/01/2023] [Indexed: 05/27/2023]
Abstract
BACKGROUND IL-22 is induced by aryl hydrocarbon receptor (AhR) signaling and plays a critical role in gastrointestinal barrier function through effects on antimicrobial protein production, mucus secretion, and epithelial cell differentiation and proliferation, giving it the potential to modulate the microbiome through these direct and indirect effects. Furthermore, the microbiome can in turn influence IL-22 production through the synthesis of L-tryptophan (L-Trp)-derived AhR ligands, creating the prospect of a host-microbiome feedback loop. We evaluated the impact IL-22 may have on the gut microbiome and its ability to activate host AhR signaling by observing changes in gut microbiome composition, function, and AhR ligand production following exogenous IL-22 treatment in both mice and humans. RESULTS Microbiome alterations were observed across the gastrointestinal tract of IL-22-treated mice, accompanied by an increased microbial functional capacity for L-Trp metabolism. Bacterially derived indole derivatives were increased in stool from IL-22-treated mice and correlated with increased fecal AhR activity. In humans, reduced fecal concentrations of indole derivatives in ulcerative colitis (UC) patients compared to healthy volunteers were accompanied by a trend towards reduced fecal AhR activity. Following exogenous IL-22 treatment in UC patients, both fecal AhR activity and concentrations of indole derivatives increased over time compared to placebo-treated UC patients. CONCLUSIONS Overall, our findings indicate IL-22 shapes gut microbiome composition and function, which leads to increased AhR signaling and suggests exogenous IL-22 modulation of the microbiome may have functional significance in a disease setting. Video Abstract.
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Affiliation(s)
- Jordan S. Mar
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- Present address: Biomarker Discovery OMNI, Genentech Inc., South San Francisco, CA USA
| | - Naruhisa Ota
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- Present address: Biomarker Discovery OMNI, Genentech Inc., South San Francisco, CA USA
| | - Nick D. Pokorzynski
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- Present address: Biomarker Discovery OMNI, Genentech Inc., South San Francisco, CA USA
| | - Yutian Peng
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- Department of Infectious Diseases, Genentech Inc., South San Francisco, CA USA
| | - Allan Jaochico
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- Drug Metabolism and Pharmacokinetics, Genentech Inc., South San Francisco, CA USA
| | - Dewakar Sangaraju
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- Drug Metabolism and Pharmacokinetics, Genentech Inc., South San Francisco, CA USA
| | - Elizabeth Skippington
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- Bioinformatics, Genentech Inc., South San Francisco, CA USA
| | - Annemarie N. Lekkerkerker
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- OMNI Biomarker Development, Genentech Inc., South San Francisco, CA USA
| | - Michael E. Rothenberg
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- Early Clinical Development, Genentech Inc., South San Francisco, CA USA
| | - Man-Wah Tan
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- Department of Infectious Diseases, Genentech Inc., South San Francisco, CA USA
| | - Tangsheng Yi
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- Present address: Department of Immunology Discovery, Genentech Inc., South San Francisco, CA USA
| | - Mary E. Keir
- Genentech, 1 DNA Way, South San Francisco, CA 94080 USA
- Present address: Biomarker Discovery OMNI, Genentech Inc., South San Francisco, CA USA
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45
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Mindt M, Ferrer L, Bosch D, Cankar K, Wendisch VF. De novo tryptophanase-based indole production by metabolically engineered Corynebacterium glutamicum. Appl Microbiol Biotechnol 2023; 107:1621-1634. [PMID: 36786915 PMCID: PMC10006044 DOI: 10.1007/s00253-023-12397-4] [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: 09/06/2022] [Revised: 01/06/2023] [Accepted: 01/18/2023] [Indexed: 02/15/2023]
Abstract
Indole has an increasing interest in the flavor and fragrance industry. It is used in dairy products, tea drinks, and fine fragrances due to its distinct floral odor typical of jasmine blossoms. The current production of indole based on isolation from coal tar is non-sustainable and its isolation from plants is often unprofitable due to low yields. To offer an alternative to the conventional production, biosynthesis of indole has been studied recently. A glucose-based indole production was achieved by employing the Corynebacterium glutamicum tryptophan synthase α-subunit (TrpA) or indole-3-glycerol phosphate lyase (IGL) from wheat Triticum aestivum in a genetically-engineered C. glutamicum strain. In addition, a highly efficient bioconversion process using C. glutamicum heterologously expressing tryptophanase gene (tnaA) from Providencia rettgeri as a biocatalyst was developed. In this work, de novo indole production from glucose was enabled by expressing the P. rettgeri tnaA in a tryptophan-producing C. glutamicum strain. By metabolic engineering of a C. glutamicum shikimate accumulating base strain, tryptophan production of 2.14 ± 0.02 g L-1 was achieved. Introduction of the tryptophanase form P. rettgeri enabled indole production, but to low titers, which could be improved by sequestering indole into the water-immiscible solvent tributyrin during fermentation and a titer of 1.38 ± 0.04 g L-1 was achieved. The process was accelerated by decoupling growth from production increasing the volumetric productivity about 4-fold to 0.08 g L-1 h-1. KEY POINTS: • Efficient de novo indole production via tryptophanases from glucose • Increased indole titers by product sequestration and improved precursor supply • Decoupling growth from production accelerated indole production.
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Affiliation(s)
- Melanie Mindt
- Wageningen Plant Research, Business Unit Bioscience, Wageningen University & Research, Wageningen, The Netherlands.,Axxence Aromatic GmbH, Emmerich am Rhein, Germany
| | - Lenny Ferrer
- Genetics of Prokaryotes, Faculty of Biology & CeBiTec, Bielefeld University, Bielefeld, Germany.,Translational Pharmacology, Faculty of Medicine OWL, Bielefeld University, Bielefeld, Germany
| | - Dirk Bosch
- Wageningen Plant Research, Business Unit Bioscience, Wageningen University & Research, Wageningen, The Netherlands
| | - Katarina Cankar
- Wageningen Plant Research, Business Unit Bioscience, Wageningen University & Research, Wageningen, The Netherlands.
| | - Volker F Wendisch
- Genetics of Prokaryotes, Faculty of Biology & CeBiTec, Bielefeld University, Bielefeld, Germany.
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Regard JB, Harrison TJ, Axford J, Axford L, Lee L, Ren X, Deng L, Reynolds A, Mao J, Liu Q, Patnaik A, Cohick E, Hollis-Symynkywicz M, Loi S, Riek S, McKeever U, Dunstan D, Sung M, Ware NF, Brown AP, Hamann LG, Marcinkeviciene J, Patterson AW, Marro ML. Discovery of a novel, highly potent and orally bioavailable pyrrolidinone indole series of irreversible Myeloperoxidase (MPO) inhibitors. Biochem Pharmacol 2023; 209:115418. [PMID: 36693437 DOI: 10.1016/j.bcp.2023.115418] [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: 08/22/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Abstract
Myeloperoxidase (MPO) is a heme-containing peroxidase from phagocytic cells, which plays an important role in the innate immune response. The primary anti-microbial function of MPO is achieved by catalyzing the oxidation of halides by hydrogen peroxide (H2O2). Upon activation of phagocytes, MPO activity is detectable in both phagosomes and extracellularly, where it can remain or transcytose into interstitial compartments. Activated MPO leads to oxidative stress and tissue damage in many inflammatory states, including cardiovascular disease. Starting from a low molecular weight (LMW) high throughput screening (HTS) hit, here we report the discovery of a novel pyrrolidinone indole (IN-4) as a highly potent MPO inhibitor. This compound displays similar in vitro potency across peroxidation, plasma and NETosis assays. In a dilution/dialysis study, <5% of the original MPO activity was detected post-incubation of MPO with IN-4, suggesting irreversible enzyme inhibition. A fast MPO inactivation rate (kinact/Ki) and low partition ratio (k3/k4) make IN-4 kinetic properties attractive for an MPO inhibitor. This compound also displays significant selectivity over the closely related thyroid peroxidase (TPO), and is selective for extracellular MPO over intracellular (neutrophil) MPO. Moreover, IN-4 shows good exposure, low clearance and high oral bioavailability in mice, rats and dogs. The high in vitro MPO activity and high oral exposure observed with IN-4 result in a dose-dependent inhibition of MPO activity in three mouse models of inflammation. In conclusion, IN-4 is a novel, potent, mechanism-based and selective MPO inhibitor, which may be used as superior therapeutic agent to treat multiple inflammatory conditions, including cardiovascular disease.
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Affiliation(s)
- Jean B Regard
- Cardiovascular and Metabolic Diseases, Cambridge, MA, USA
| | | | - Jake Axford
- Global Discovery Chemistry, Cambridge, MA, USA
| | - Laura Axford
- Cardiovascular and Metabolic Diseases, Cambridge, MA, USA.
| | - Lac Lee
- Cardiovascular and Metabolic Diseases, Cambridge, MA, USA
| | - Xianglin Ren
- Cardiovascular and Metabolic Diseases, Cambridge, MA, USA
| | | | | | - Justin Mao
- Global Discovery Chemistry, Cambridge, MA, USA
| | - Qian Liu
- Global Discovery Chemistry, Cambridge, MA, USA
| | | | - Evan Cohick
- Cardiovascular and Metabolic Diseases, Cambridge, MA, USA
| | | | - Sally Loi
- Cardiovascular and Metabolic Diseases, Cambridge, MA, USA
| | - Simone Riek
- Novartis Institutes for BioMedical Research, Autoimmunity, Transplantation and Inflammation, Switzlerland
| | - Una McKeever
- Novartis Institutes for BioMedical Research, Autoimmunity, Transplantation and Inflammation, Switzlerland
| | | | - MooJe Sung
- Global Discovery Chemistry, Cambridge, MA, USA
| | | | - Alan P Brown
- Preclinical Safety, Novartis Institutes for BioMedical Research, Fabrikstrasse 2 Novartis Campus, Basel CH-4056, Switzerland
| | | | | | | | - Martin L Marro
- Cardiovascular and Metabolic Diseases, Cambridge, MA, USA
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Nguyen TT, Olumodeji SG, Chidgey KL, Wester TJ, Realini CE, Morel PCH. Increasing sustainability in pork production by using high inclusion levels of co-products DDGS, wheat middling and canola meal doesn't affect pig growth performance and meat quality but reduce boar taint. Anim Biosci 2023:ab.22.0468. [PMID: 36915921 DOI: 10.5713/ab.22.0468] [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: 12/14/2022] [Accepted: 02/16/2023] [Indexed: 03/02/2023] Open
Abstract
Objective the present study is to examine the effect of high inclusion of co-products in pig diets (referred to as an alternative diet) during the finishing stage on pig growth performance, meat quality and boar taint compounds. Methods Growing pigs were fed an alternative diet made with distillers dried grains with solubles (DDGS, 25%), canola meal (CM, 20%), and wheat middling (WM, 15%) or a control diet based on barley and soybean meal (SBM) to investigate the impact of co-products on pig performance and meat quality. Sixteen female and sixteen entire male Duroc × (Large White × Landrace) pigs (22.6 ± 2.07 kg, body weight ± SE) were equally allocated to the diets. Result Pigs fed the alternative diet had a lower feed intake; however, growth rate and feed conversion efficiency were unaffected by diet. A diet by sex interaction was found for gain:feed whereby males fed the alternative diet had the best feed conversion (P < 0.01). Pork from pigs fed the alternative diet had lower a* and Chroma and protein % (P < 0.05), while other meat quality characteristics were unaffected. The alternative diet reduced backfat skatole levels (P < 0.001). Conclusion A diet containing a high inclusion levels of co-products can be fed to pigs during the finishing stage without detrimental effects on pig performance or meat quality and with the potential to enhance pork flavour. This finding suggests a solution to increase the sustainable development of pig production.
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Affiliation(s)
- Thanh T Nguyen
- Monogastric Research Centre, School of Agriculture and Environment, Massey University, Palmerston North 4442, New Zealand.,The University of Danang, Campus in Kon Tum, 704 Phan Dinh Phung, Kon Tum, Vietnam
| | - Shola G Olumodeji
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Kirsty L Chidgey
- Monogastric Research Centre, School of Agriculture and Environment, Massey University, Palmerston North 4442, New Zealand
| | - Timothy J Wester
- Monogastric Research Centre, School of Agriculture and Environment, Massey University, Palmerston North 4442, New Zealand
| | | | - Patrick Charles Henri Morel
- Monogastric Research Centre, School of Agriculture and Environment, Massey University, Palmerston North 4442, New Zealand
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48
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Hassan OM, Kubba A, Tahtamouni LH. Novel 5-Bromo indole-2-Carboxylic Acid Derivatives as EGFR Inhibitors: Synthesis, Docking Study, and Structure-Activity Relationship. Anticancer Agents Med Chem 2023:ACAMC-EPUB-129843. [PMID: 36847231 DOI: 10.2174/1871520623666230227153449] [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: 09/15/2022] [Revised: 12/27/2022] [Accepted: 01/13/2023] [Indexed: 02/28/2023]
Abstract
BACKGROUND The indole backbone is encountered in a class of N-heterocyclic compounds with physiological and pharmacological effects such as anti-cancer, anti-diabetic, and anti-HIV. These compounds are becoming increasingly popular in organic, medicinal, and pharmaceutical research. Nitrogen compounds' hydrogen bonding, dipole-dipole interactions, hydrophobic effects, Van der Waals forces, and stacking interactions have increased their relevance in pharmaceutical chemistry due to their improved solubility. Indole derivatives, such as carbothioamide, oxadiazole, and triazole, have been reported to act as anti-cancer drugs due to their ability to disrupt the mitotic spindle and prevent human cancer cell proliferation, expansion, and invasion. OBJECTIVES To synthesize new 5-bromo-indole-2-carboxylic acid derivatives that function as EGFR tyrosine kinase inhibitors as deduced through molecular docking studies. METHODS Different derivatives of indole (carbothioamide, oxadiazole, tetrahydro pyridazine-3,6-dione, and triazole) were synthesized and evaluated through different chemical, spectroscopic methods (IR, 1HNMR, 13CNMR, and MS) and assessed in silico and in vitro for their antiproliferative activities against A549, HepG2, and MCF-7 cancer cell lines. RESULTS According to molecular docking analyses, compounds 3a, 3b, 3f, and 7 exhibited the strongest EGFR tyrosine kinase domain binding energies. In comparison to erlotinib, which displayed some hepatotoxicity, all of the evaluated ligands displayed good in silico absorption levels, did not appear to be cytochrome P450 inhibitors, and were not hepatotoxic. The new indole derivatives were found to decrease cell growth of three different types of human cancer cell lines (HepG2, A549, and MCF-7), with compound 3a being the most powerful while still being cancer-specific. Cell cycle arrest and the activation of apoptosis were the results of compound 3a's inhibition of EGFR tyrosine kinase activity. CONCLUSION The novel indole derivatives, compound 3a in particular, are promising anti-cancer agents which inhibit cell proliferation by inhibiting EGFR tyrosine kinase activity.
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Affiliation(s)
- Omeed M Hassan
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Baghdad, Bagdad, Iraq
| | - Ammar Kubba
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Baghdad, Bagdad, Iraq
| | - Lubna H Tahtamouni
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa, Jordan.,Department of Biochemistry and Molecular Biology, College of Natural Sciences, Colorado State University, Fort Collins, Colorado, USA
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Perez-Santaescolastica C, De Winne A, Devaere J, Fraeye I. Comparing the aromatic profile of seven unheated edible insect species. Food Res Int 2023; 164:112389. [PMID: 36737974 DOI: 10.1016/j.foodres.2022.112389] [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: 09/19/2022] [Revised: 12/13/2022] [Accepted: 12/24/2022] [Indexed: 12/29/2022]
Abstract
Insects and insect-based products have gained increasing interest as human food because of their many technological, nutritional and environmental advantages, but they are still rejected by many Western consumers. Analytical knowledge of flavour compounds could contribute to enhancing product attractiveness to consumers. Therefore, the goal of this study was to examine the volatile compound profiles of 7 unheated insects: Zophobas morio (ZM), Tenebrio molitor (TM), Locusta migratoria (LM), Galleria mellonella (GM), Blaptica dubia (BD), Alphitobius diaperinus (ALD) and Acheta domesticus (ACD). A total of 67 compounds were identified. Carboxylic acids were predominant in ALD, BD, GM, TM and ZM, while ketones were the major family in ACD and linear hydrocarbons in LM. ZM contained the highest number of unpleasant odour compounds, including indole, also present in BD and GM, which is characterised by a low detection threshold.
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Affiliation(s)
- Cristina Perez-Santaescolastica
- Research Group of Meat Technology & Science of Protein-rich Foods (MTSP), KU Leuven Ghent Technology Campus, Department of Microbial and Molecular Systems (M2S), Leuven Food Science and Nutrition Research Centre (LFoRCe), Gebroeders De Smetstraat, 1, Ghent 9000, Belgium.
| | - Ann De Winne
- Centre for Aroma and Flavour Technology, KU Leuven Ghent Technology Campus, Gebroeders De Smetstraat, 1, B-9000 Ghent, Belgium
| | - Jolien Devaere
- Centre for Aroma and Flavour Technology, KU Leuven Ghent Technology Campus, Gebroeders De Smetstraat, 1, B-9000 Ghent, Belgium
| | - Ilse Fraeye
- Research Group of Meat Technology & Science of Protein-rich Foods (MTSP), KU Leuven Ghent Technology Campus, Department of Microbial and Molecular Systems (M2S), Leuven Food Science and Nutrition Research Centre (LFoRCe), Gebroeders De Smetstraat, 1, Ghent 9000, Belgium
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Zhu M, Shan Q, Ma L, Dong B, Wang J, Zhang G, Wang M, Zhou J, Cen S, Wang Y. Structure based design and evaluation of benzoheterocycle derivatives as potential dual HIV-1 protease and reverse transcriptase inhibitors. Eur J Med Chem 2023; 246:114981. [PMID: 36481598 DOI: 10.1016/j.ejmech.2022.114981] [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: 06/15/2022] [Revised: 11/19/2022] [Accepted: 11/26/2022] [Indexed: 12/05/2022]
Abstract
The development of dual inhibitors of HIV-1 protease and reverse transcriptase is an attractive strategy for multi-target therapeutic of AIDS, which may be privileged in delaying the occurrence of drug resistance. We herein designed a novel kind of dual inhibitors with benzofuran or indole cores. Biological results showed that a number of inhibitors displayed significant activity against both HIV-1 protease and reverse transcriptase. Among which, inhibitor 10f exhibited a good correlation with an approximate ratio of 1: 2 between the two enzymes. Furthermore, the dual inhibitors illustrated similar potency against both the wild-type virus and drug-resistant mutant. In addition, the molecular dynamic simulation studies verified the dual actions of such inhibitors.
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Affiliation(s)
- Mei Zhu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Qi Shan
- Tianjin Institute of Pharmaceutical Research, Tianjin, 300462, China
| | - Ling Ma
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Biao Dong
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Juxian Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Guoning Zhang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Minghua Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Jinming Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua, 321004, China.
| | - Shan Cen
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China.
| | - Yucheng Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China.
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