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Biology subjects

Hammad, H. M.

Publications and source records attributed to Hammad, H. M..

2 recordsLinked to original sources

Identification of novel therapeutic inhibitors against E6 and E7 oncogenes of HPV-16 associated with cervical cancer

BackgroundHuman Papilloma Virus type 16 (HPV-16) is highly oncogenic with the E6 and E7 oncogenes playing crucial roles in the pathogenesis of HPV-related cervical carcinogenesis. Targeting these oncoproteins with specific inhibitors offers a promising approach for therapeutic intervention. ObjectiveThis study aimed to identify potential inhibitors of the HPV-16 E6 and E7 oncoproteins through an in silico approach, providing a foundation for the development of targeted therapies against HPV associated malignancies. MethodologyWe performed virtual screening on a library of 1000 compounds to identify promising candidates. Subsequent molecular docking studies were conducted to assess the binding affinities of the promising candidates. The top-scoring compounds for oncoproteins were then subjected to molecular dynamics simulations to evaluate their stability and interaction profiles. ResultsThe virtual screening identified 14 promising candidates followed by docking studies. Among these Galangin was identified as a promising inhibitor for the E6 oncogene, while Neoechinulin showed potential as an inhibitor of the E7 oncogene. ConclusionOur findings suggest Galangin and Neoechinulin with high potential as therapeutic inhibitors of HPV-16 E6 and E7 oncogenes respectively. These inhibitors could contribute significantly to the development of targeted therapies against HPV associated malignancies. However, further in vitro and in vivo investigations are required to use these phytochemicals as antiviral agents against HPV-16.

cancer biology↗

De novo Autogenic Engineered Living Functional Materials

Autogenic engineered living materials (ELMs) involve in situ production and engineering of native extracellular matrix (ECM). However, the existing autogenic ELMs have limited scope and functionalities. Herein, we report a platform for de novo autogenic functional ELMs. By protein mining, we have discovered CsgA-like 33,564 homologs that can find potential utility as de novo ECM of protein nanofibers. By employing AlphaFold2 and molecular dynamics simulations, we shed insights into the CsgA-like {beta}-solenoid protein structures and stability. By hacking Escherichia coli curli machinery, we demonstrate the production of de novo autogenic ELMs from CsgA-like proteins ([≤]9-times the molecular weight and {beta}-sheet repeat units) of extremophilic non-model bacteria. Additionally, we biomanufacture macroscopic materials with tunable mechanical properties (enhancing storage modulus by 3-times) and programmable functionalities (3D printability, binding to nanoparticles/antibodies). This work showcases a versatile platform to discover, rationally design, and harness the sophisticated functionalities of natural systems for futuristic autogenic ELMs.

bioengineering↗