"THE DEVELOPMENT OF A NOVEL PROTEASE ASSAY POINT-OF-CARE TEST FOR SARS-" by Anahi G. Jimenez
 

Biomedical Sciences ETDs

Publication Date

Fall 12-14-2024

Abstract

This study aimed to investigate the efficiency of saliva analysis in detecting SARS-CoV-2 through a clinical investigation involving 20-25 participants. The study evaluated a rapid protease activity test in saliva compared to an FDA-authorized RT-PCR test. Eligible participants, aged 18 years or older, underwent routine RT-PCR testing. This protease test represents an alternative to nucleic acid and antigen tests, potentially suitable for POCT. Assessment criteria included PPA and NPA compared to RT-PCR results, with exploration of false positives and negatives. Subjects with discordant results were retested after 72 hours to assess viral detectability. Additionally, we delved into the genome organization of SARS-CoV-2 and the proteins roles, MPro and PLPro, in viral replication. Biochemical methods optimized a protease test utilizing specific peptide substrates, demonstrating high sensitivity in detecting viral activity in saliva. This research highlights saliva testing's promise in SARS-CoV-2 detection, contributing insights into disease management strategies and global health implications.

Keywords

Protease, POCT, MPro, PLpro, SARS-CoV-2, Saliva

Sponsors

Mesa Photonics Lab

Document Type

Thesis

Language

English

Degree Name

Biomedical Sciences

Level of Degree

Masters

Department Name

Biomedical Sciences Graduate Program

First Committee Member (Chair)

Hua-Ying Fan, PhD

Second Committee Member

Justin T Baca, PhD, MD

Third Committee Member

Frauke Rininsland, PhD

Available for download on Tuesday, December 15, 2026

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