Department of Biotechnology
inStem (Institute for Stem Cell Science and Regenerative Medicine)

Investigation of Antifungal Properties of Synthetic Dimethyl-4-Bromo-1-(Substituted Benzoyl) Pyrrolo[1,2-a] Quinoline-2,3-Dicarboxylates Analogues: Molecular Docking Studies and Conceptual DFT-Based Chemical Reactivity Descriptors and Pharmacokinetics Evaluation.

Publication Type

Journal Article

Date of Publication

May 6, 2021

Journal

Molecules (Basel, Switzerland)

Volume/Issue

26/9

ISSN

1420-3049

, an opportunistic fungal pathogen, frequently colonizes immune-compromised patients and causes mild to severe systemic reactions. Only few antifungal drugs are currently in use for therapeutic treatment. However, evolution of a drug-resistant fungal pathogen is of major concern in the treatment of patients, hence the clinical need for novel drug design and development. In this study, in vitro of novel putative pyrrolo[1,2-a]quinoline derivatives as the lead drug targets and in silico prediction of the binding potential of these lead molecules against pathogenic proteins, such as secreted aspartic protease 3 (SAP3; 2H6T), surface protein β-glucanase (3N9K) and sterol 14-alpha demethylase (5TZ1), were carried out by molecular docking analyses. Further, biological activity-based QSAR and theoretical pharmacokinetic analysis were analyzed. Here, in vitro screening of novel analogue derivatives as drug targets against showed inhibitory potential in the concentration of 0.4 µg for BQ-06, 07 and 08, 0.8 µg for BQ-01, 03, and 05, 1.6 µg for BQ-04 and 12.5 µg for BQ-02 in comparison to the standard antifungal drug fluconazole in the concentration of 30 µg. Further, in silico analysis of BQ-01, 03, 05 and 07 analogues docked on chimeric 2H6T, 3N9K and 5TZ1 revealed that these analogues show potential binding affinity, which is different from the therapeutic antifungal drug fluconazole. In addition, these molecules possess good drug-like properties based on the determination of conceptual Density Functional Theory (DFT)-based descriptors, QSAR and pharmacokinetics. Thus, the study offers significant insight into employing pyrrolo[1,2-a]quinoline analogues as novel antifungal agents against that warrants further investigation.

Alternate Journal

Molecules

PubMed ID

34066433

PubMed Central ID

PMC8124935

Authors

Vijayakumar Uppar
Sandeep Chandrashekharappa
Chandan Shivamallu
Sushma P
Shiva Prasad Kollur
Joaquín Ortega-Castro
Juan Frau
Norma Flores-Holguín
Atiyaparveen I Basarikatti
Mallikarjun Chougala
Mrudula Mohan M
Govindappa Banuprakash
Jayadev
Katharigatta N Venugopala
Belakatte P Nandeshwarappa
Ravindra Veerapur
Abdulaziz A Al-Kheraif
Abdallah M Elgorban
Asad Syed
Kiran K Mudnakudu-Nagaraju
Basavaraj Padmashali
Daniel Glossman-Mitnik

Keywords

Indolizines
Carboxylic Acids
Chemistry, Pharmaceutical
Density Functional Theory
Fluconazole
Thermodynamics
Hydrogen Bonding
Protein Conformation
Microbial Sensitivity Tests
Candida albicans
Molecular Structure
Antifungal Agents
Quantitative Structure-Activity Relationship
Molecular Docking Simulation
Quinolines
Drug Design