Article ; Online: Channels and Transporters of the Pulmonary Lamellar Body in Health and Disease.
2021 Volume 11, Issue 1
Abstract: The lamellar body (LB) of the alveolar type II (ATII) cell is a lysosome-related organelle (LRO) that contains surfactant, a complex mix of mainly lipids and specific surfactant proteins. The major function of surfactant in the lung is the reduction of ... ...
Abstract | The lamellar body (LB) of the alveolar type II (ATII) cell is a lysosome-related organelle (LRO) that contains surfactant, a complex mix of mainly lipids and specific surfactant proteins. The major function of surfactant in the lung is the reduction of surface tension and stabilization of alveoli during respiration. Its lack or deficiency may cause various forms of respiratory distress syndrome (RDS). Surfactant is also part of the innate immune system in the lung, defending the organism against air-borne pathogens. The limiting (organelle) membrane that encloses the LB contains various transporters that are in part responsible for translocating lipids and other organic material into the LB. On the other hand, this membrane contains ion transporters and channels that maintain a specific internal ion composition including the acidic pH of about 5. Furthermore, P2X |
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MeSH term(s) | COVID-19/metabolism ; COVID-19/virology ; Humans ; Ion Channels/metabolism ; Lamellar Bodies/metabolism ; Lung/metabolism ; Lung/virology ; Membrane Transport Proteins/metabolism ; Organelles/metabolism ; Organelles/virology ; Pulmonary Alveoli/metabolism ; Pulmonary Alveoli/virology ; Pulmonary Surfactants/metabolism ; SARS-CoV-2/physiology |
Chemical Substances | Ion Channels ; Membrane Transport Proteins ; Pulmonary Surfactants |
Language | English |
Publishing date | 2021-12-24 |
Publishing country | Switzerland |
Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Review |
ZDB-ID | 2661518-6 |
ISSN | 2073-4409 ; 2073-4409 |
ISSN (online) | 2073-4409 |
ISSN | 2073-4409 |
DOI | 10.3390/cells11010045 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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