Journals / Turkish Journal of Pharmaceutical Sciences / 2020 / Cilt: 17 - Sayı: 1

In Vitro Activities of the Cationic Steroid Antibiotics CSA-13, CSA-131, CSA-138, CSA142, and CSA-192 Against Carbapenem-resistant Pseudomonas aeruginosa

Katyonik Steroid Antibiyotiklerden CSA-13, CSA-131, CSA-138, CSA-142 ve CSA-192’nin Karbapenem Dirençli Pseudomonas aeruginosa Suşlarına Karşı İn Vitro Aktivitesi

Pages
63–67
Publication Date
2022-11-05
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

However, the lack of stability, efficacy, and pharmacokineticproperties of CSA requires further research in the future in vivo and in vitro.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: Pseudomonas aeruginosa is an important opportunistic pathogen that is difficult to treat because of the antibiotic resistance that hasdeveloped in recent years.
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Key Findings & Data:In this study, we investigated the in vitro activities of the cationic steroid antibiotics (CSAs) CSA-13,CSA-131, CSA-138, CSA-142, CSA-192, and colistin on carbapenem-resistant Pseudomonas aeruginosa (CRPA).Materials and Methods: Minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) were determined by brothdilution method.Results: The MIC50 (µg/mL) values of CSA-13, CSA-131, CSA-138, CSA-142, CSA-192, colistin, and meropenem were 8, 4, 8, 16, 32, 1, and 16,respectively.
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Conclusion & Impact:However, the lack of stability, efficacy, and pharmacokineticproperties of CSA requires further research in the future in vivo and in vitro.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: Pseudomonas aeruginosa is an important opportunistic pathogen that is difficult to treat because of the antibiotic resistance that hasdeveloped in recent years. Increasing carbapenem resistance has led to a rise in hospital infections caused by this bacterium. As a result, researchershave begun to search for new molecules. Ceragenins are the general name for membrane-acting cationic steroid antimicrobial molecules that haveactivity similar to that of antimicrobial peptides. In this study, we investigated the in vitro activities of the cationic steroid antibiotics (CSAs) CSA-13,CSA-131, CSA-138, CSA-142, CSA-192, and colistin on carbapenem-resistant Pseudomonas aeruginosa (CRPA).Materials and Methods: Minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) were determined by brothdilution method.Results: The MIC50 (µg/mL) values of CSA-13, CSA-131, CSA-138, CSA-142, CSA-192, colistin, and meropenem were 8, 4, 8, 16, 32, 1, and 16,respectively. The MBC values were equal to or twice the MIC values.Conclusion: CSA-131 and CSA-138 appear to be good candidates for CRPA treatment. However, the lack of stability, efficacy, and pharmacokineticproperties of CSA requires further research in the future in vivo and in vitro.

Özet

Amaç: Son yıllarda geliştirdiği antibiyotik direnci nedeniyle tedavisi zorlaşan önemli bakterilerden biri de Pseudomonas aeruginosa (P. aeruginosa)‘dır. Önemli bir hastane enfeksiyonu etkeni olan bu bakterinin karbapenem grubu antibiyotiklere karşı geliştirdiği direnç nedeniyle bu suşlarla meydana gelen enfeksiyonlarda önemli bir artış görülmüştür. Bu da araştırmacıları yeni moleküller üzerinde çalışmaya yönlendirmiştir. Cerageninler, antimikrobiyal peptidlere benzer şekilde aktivite gösteren, membrana etki edebilen katyonik steroid antimikrobiyal moleküllerin genel ismidir. Bu çalışmada katyonik steroid antibiyotiklerden katyonik steroid antibiyotikler (CSA) olan CSA-13, CSA-131, CSA-138, CSA-142 ve CSA-192’nin ve kolistinin karbapenem dirençli P. aeruginosa üzerine olan in vitro etkilerini araştırılmıştır.Presented in: 26-29 April 2017 IVEK International Convention of Pharmaceuticals and Pharmacies - Poster and 27 May 2018 Eskişehir Competition of pharmacy graduation projects symposium Gereç ve Yöntemler: Minimum inhibitör konsantrasyonları (MİK) ve minimum bakterisidal konsantrasyonlar (MBK) değerleri mikrodilüsyon yöntemi ile belirlenmiştir. Bulgular: MİK50 (µg/mL) değerleri, CSA-13, CSA-131, CSA-138, CSA-142, CSA-192, kolistin ve meropenem için sırasıyla 16, 4, 8, 32, 32, 2 ve 32’dir. MBK değerleri, MİK değerlerine eşit ya da iki katı olarak saptanmıştır. Sonuç: Sonuç olarak CSA-131 ve CSA-138’in karbepenem dirençli P. aeruginosa tedavisinde iyi birer aday olacağı düşüncesindeyiz. Ancak CSA’ların stabilite özellikleri, etkinlikleri ve farmakokinetik özelliklerindeki eksiklikler, gelecekte bu konuda daha fazla araştırma yapılmasını gerektirmektedir.

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Cite This Article

GÜZEL, Ç. B., AVCI, N. M., SAVAGE, P. (2022). In Vitro Activities of the Cationic Steroid Antibiotics CSA-13, CSA-131, CSA-138, CSA142, and CSA-192 Against Carbapenem-resistant Pseudomonas aeruginosa. Turkish Journal of Pharmaceutical Sciences, Cilt: 17 - Sayı: 1, 63–67. https://ajindex.com/articles/654550

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