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1.
Cells ; 11(6)2022 03 08.
Article in English | MEDLINE | ID: covidwho-1760407

ABSTRACT

A distinct set of channels and transporters regulates the ion fluxes across the lysosomal membrane. Malfunctioning of these transport proteins and the resulting ionic imbalance is involved in various human diseases, such as lysosomal storage disorders, cancer, as well as metabolic and neurodegenerative diseases. As a consequence, these proteins have stimulated strong interest for their suitability as possible drug targets. A detailed functional characterization of many lysosomal channels and transporters is lacking, mainly due to technical difficulties in applying the standard patch-clamp technique to these small intracellular compartments. In this review, we focus on current methods used to unravel the functional properties of lysosomal ion channels and transporters, stressing their advantages and disadvantages and evaluating their fields of applicability.


Subject(s)
Ion Channels , Lysosomal Storage Diseases , Humans , Intracellular Membranes/metabolism , Ion Channels/metabolism , Ions/metabolism , Lysosomal Storage Diseases/metabolism , Lysosomes/metabolism , Patch-Clamp Techniques
2.
Cells ; 10(5)2021 05 07.
Article in English | MEDLINE | ID: covidwho-1223961

ABSTRACT

The flavonoid naringenin (Nar), present in citrus fruits and tomatoes, has been identified as a blocker of an emerging class of human intracellular channels, namely the two-pore channel (TPC) family, whose role has been established in several diseases. Indeed, Nar was shown to be effective against neoangiogenesis, a process essential for solid tumor progression, by specifically impairing TPC activity. The goal of the present review is to illustrate the rationale that links TPC channels to the mechanism of coronavirus infection, and how their inhibition by Nar could be an efficient pharmacological strategy to fight the current pandemic plague COVID-19.


Subject(s)
COVID-19/drug therapy , Calcium Channel Blockers/pharmacology , Calcium Channels/metabolism , Flavanones/pharmacology , Neoplasms/drug therapy , Antineoplastic Agents/pharmacology , Antineoplastic Agents/therapeutic use , Antiviral Agents/pharmacology , Antiviral Agents/therapeutic use , Arabidopsis/metabolism , COVID-19/epidemiology , COVID-19/pathology , COVID-19/virology , Calcium Channel Blockers/therapeutic use , Drug Evaluation, Preclinical , Endosomes/drug effects , Endosomes/metabolism , Endosomes/virology , Flavanones/therapeutic use , Humans , Lysosomes/drug effects , Lysosomes/metabolism , Lysosomes/virology , Neoplasms/blood supply , Neoplasms/pathology , Neovascularization, Pathologic/drug therapy , Neovascularization, Pathologic/pathology , Pandemics/prevention & control , SARS-CoV-2/pathogenicity , Vacuoles/metabolism , Virus Internalization/drug effects
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