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Current Molecular Medicine

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ISSN (Print): 1566-5240
ISSN (Online): 1875-5666

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Perspective

Low pH and Temperature of Airway Surface Liquid are Key Determinants that Potentiate SARS-CoV-2 Infectivity

Author(s): Nilesh Kumar Sharma* and Sachin C. Sarode

Volume 22, Issue 6, 2022

Published on: 16 August, 2021

Page: [471 - 477] Pages: 7

DOI: 10.2174/1566524021666210816095557

Abstract

Overwhelming responses are seen at preclinical and clinical levels to understand and combat coronavirus disease 2019 [COVID-19] pandemic that is caused by severe acute respiratory syndrome coronavirus 2 [SARS-CoV-2]. Encouraging successes are achieved in view of diagnostic, therapeutic and preventive measures, including vaccines development. In fact, structural information of SARS-CoV-2 and molecular steps that help this virus target AECs are appreciably studied. Furthermore, the heterogeneous and complex nature of COVID-19 is extensively revealed at molecular, genetic, and epigenetic and microenvironment levels. In spite of these developments in COVID-19 pathogenesis, the reasons behind the targeted infection by SARS-CoV-2 to AECs are poorly understood. In this mini-review, we highlight the roles of pH and temperature of airway surface liquid [ASL] as a key determining factor that may contribute towards enhanced targeted infection by SARS-CoV-2 leading to COVID- 19.

Keywords: Neoplasia, airway epithelial cells, cellular signaling, COVID-19, low pH, temperature.

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