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Acquavia MA, Bonomo MG, Bianco G, Salzano G, Gaeta C, Iannece P, Di Capua A, Giuzio F, Saturnino C. New piperazine and morpholine derivatives: Mass spectrometry characterization and evaluation of their antimicrobial activity. J Pharm Biomed Anal 2024; 246:116202. [PMID: 38820833 DOI: 10.1016/j.jpba.2024.116202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/26/2024] [Accepted: 05/03/2024] [Indexed: 06/02/2024]
Abstract
Recently, pharmaceutical research has been focused on the design of new antibacterial drugs with higher selectivity towards several strains. Major issues concern the possibility to obtain compounds with fewer side effects, at the same time effectively overcoming the problem of antimicrobial resistance. Several solutions include the synthesis of new pharmacophores starting from piperazine or morpholine core units. Mass spectrometry-based techniques offer important support for the structural characterization of newly synthesized compounds to design safer and more effective drugs for various medical conditions. Here, two new piperazine derivatives and four new morpholine derivatives were synthesized and structurally characterized through a combined approach of Fourier transform-ion cyclotron resonance (FT-ICR) and Linear Trap Quadrupole (LTQ) mass spectrometry. The support of both high-resolution and low-resolution mass spectrometric data namely accurate mass measurements, isotopic distribution and MSn spectra, was crucial to confirm the success of the synthesis. These compounds were further evaluated for inhibitory activity against a total of twenty-nine Gram-positive and Gram-negative bacteria to determine the action spectrum and the antimicrobial effectiveness. Results demonstrated compounds' antimicrobial activity against many tested bacterial species, providing an inhibitory effect linked to different chemical structure and suggesting that the new-synthesized derivatives could be considered as promising antimicrobial agents.
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Affiliation(s)
- Maria Assunta Acquavia
- Università degli Studi della Basilicata, Dipartimento di Scienze, Viale dell'Ateneo Lucano 10, Potenza, Italy
| | - Maria Grazia Bonomo
- Università degli Studi della Basilicata, Dipartimento di Scienze, Viale dell'Ateneo Lucano 10, Potenza, Italy; Spinoff TNcKILLERS, Viale Dell'Ateneo Lucano 10, Potenza 85100, Italy.
| | - Giuliana Bianco
- Università degli Studi della Basilicata, Dipartimento di Scienze, Viale dell'Ateneo Lucano 10, Potenza, Italy
| | - Giovanni Salzano
- Università degli Studi della Basilicata, Dipartimento di Scienze, Viale dell'Ateneo Lucano 10, Potenza, Italy; Spinoff TNcKILLERS, Viale Dell'Ateneo Lucano 10, Potenza 85100, Italy
| | - Carmine Gaeta
- Università degli Studi di Salerno, Dipartimento di Chimica e Biologia, Via Giovanni Paolo II 132, Fisciano, Italy
| | - Patrizia Iannece
- Università degli Studi di Salerno, Dipartimento di Chimica e Biologia, Via Giovanni Paolo II 132, Fisciano, Italy
| | - Angela Di Capua
- Università degli Studi della Basilicata, Dipartimento di Scienze, Viale dell'Ateneo Lucano 10, Potenza, Italy.
| | - Federica Giuzio
- Università degli Studi della Basilicata, Dipartimento di Scienze, Viale dell'Ateneo Lucano 10, Potenza, Italy; Spinoff TNcKILLERS, Viale Dell'Ateneo Lucano 10, Potenza 85100, Italy
| | - Carmela Saturnino
- Università degli Studi della Basilicata, Dipartimento di Scienze, Viale dell'Ateneo Lucano 10, Potenza, Italy
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Alsufyani T, Al-Otaibi N, Alotaibi NJ, M'sakni NH, Alghamdi EM. GC Analysis, Anticancer, and Antibacterial Activities of Secondary Bioactive Compounds from Endosymbiotic Bacteria of Pomegranate Aphid and Its Predator and Protector. Molecules 2023; 28:molecules28104255. [PMID: 37241995 DOI: 10.3390/molecules28104255] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/10/2023] [Accepted: 05/17/2023] [Indexed: 05/28/2023] Open
Abstract
Bacterial secondary metabolites are a valuable source of various molecules that have antibacterial and anticancer activity. In this study, ten endosymbiotic bacteria of aphids, aphid predators and ants were isolated. Bacterial strains were identified according to the 16S rRNA gene. Ethyl acetate fractions of methanol extract (EA-ME) were prepared from each isolated bacterium and tested for their antibacterial activities using the disk diffusion method. The EA-ME of three bacterial species, Planococcus sp., Klebsiella aerogenes, Enterococcus avium, from the pomegranate aphids Aphis punicae, Chrysoperia carnea, and Tapinoma magnum, respectively, exhibited elevated antibacterial activity against one or several of the five pathogenic bacteria tested. The inhibition zones ranged from 10.00 ± 0.13 to 20.00 ± 1.11 mm, with minimum inhibitory concentration (MIC) values ranging from 0.156 mg/mL to 1.25 mg/mL. The most notable antibacterial activity was found in the EA-ME of K. aerogenes against Klebsiella pneumonia and Escherichia coli, with an MIC value of 0.156 mg/mL. The cytotoxic activity of EA-ME was dependent on the cell line tested. The most significant cytotoxicity effect was observed for extracts of K. aerogenes and E. avium, at 12.5 µg/mL, against the epithelial cells of lung carcinoma (A549), with a cell reduction of 79.4% and 67.2%, respectively. For the EA-ME of K. aerogenes and Pantoea agglomerans at 12.5 µg/mL, 69.4% and 67.8% cell reduction were observed against human colon cancer (Hct116), respectively. Gas chromatography-mass spectrometry (GC-MS) analysis of three EA-ME revealed the presence of several bioactive secondary metabolites that have been reported previously to possess antibacterial and anticancer properties. To the best of our knowledge, this is the first study to examine the biological activities of endosymbiotic bacteria in aphids, aphid predators and ants. The promising data presented in this study may pave the way for alternative drugs to overcome the continued emergence of multidrug-resistant bacteria, and find alternative drugs to conventional cancer therapies.
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Affiliation(s)
- Taghreed Alsufyani
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- High Altitude Research Centre, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Najwa Al-Otaibi
- High Altitude Research Centre, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Noura J Alotaibi
- High Altitude Research Centre, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Nour Houda M'sakni
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- High Altitude Research Centre, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Laboratory of the Interfaces and Advanced Materials (LIMA), Science Faculty, Monastir University, P.O. Box 05019, Monastir 5019, Tunisia
| | - Eman M Alghamdi
- Chemistry Department, Faculty of Science, King Abdul Aziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia
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Zhou Z, Zhou S, Zhang X, Zeng S, Xu Y, Nie W, Zhou Y, Xu T, Chen P. Quaternary Ammonium Salts: Insights into Synthesis and New Directions in Antibacterial Applications. Bioconjug Chem 2023; 34:302-325. [PMID: 36748912 DOI: 10.1021/acs.bioconjchem.2c00598] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The overuse of antibiotics has led to the emergence of a large number of antibiotic-resistant genes in bacteria, and increasing evidence indicates that a fungicide with an antibacterial mechanism different from that of antibiotics is needed. Quaternary ammonium salts (QASs) are a biparental substance with good antibacterial properties that kills bacteria through simple electrostatic adsorption and insertion into cell membranes/altering of cell membrane permeability. Therefore, the probability of bacteria developing drug resistance is greatly reduced. In this review, we focus on the synthesis and application of single-chain QASs, double-chain QASs, heterocyclic QASs, and gemini QASs (GQASs). Some possible structure-function relationships of QASs are also summarized. As such, we hope this review will provide insight for researchers to explore more applications of QASs in the field of antimicrobials with the aim of developing systems for clinical applications.
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Affiliation(s)
- Zhenyang Zhou
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Shuguang Zhou
- Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui 236000, China
| | - Xiran Zhang
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Shaohua Zeng
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Ying Xu
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Wangyan Nie
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Yifeng Zhou
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Tao Xu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Pengpeng Chen
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
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Multidrug Resistance (MDR): A Widespread Phenomenon in Pharmacological Therapies. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030616. [PMID: 35163878 PMCID: PMC8839222 DOI: 10.3390/molecules27030616] [Citation(s) in RCA: 126] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/11/2022] [Accepted: 01/17/2022] [Indexed: 02/07/2023]
Abstract
Multidrug resistance is a leading concern in public health. It describes a complex phenotype whose predominant feature is resistance to a wide range of structurally unrelated cytotoxic compounds, many of which are anticancer agents. Multidrug resistance may be also related to antimicrobial drugs, and is known to be one of the most serious global public health threats of this century. Indeed, this phenomenon has increased both mortality and morbidity as a consequence of treatment failures and its incidence in healthcare costs. The large amounts of antibiotics used in human therapies, as well as for farm animals and even for fishes in aquaculture, resulted in the selection of pathogenic bacteria resistant to multiple drugs. It is not negligible that the ongoing COVID-19 pandemic may further contribute to antimicrobial resistance. In this paper, multidrug resistance and antimicrobial resistance are underlined, focusing on the therapeutic options to overcome these obstacles in drug treatments. Lastly, some recent studies on nanodrug delivery systems have been reviewed since they may represent a significant approach for overcoming resistance.
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