Expression of Sphingosine Kinase 1 and Sphingosine 1-phosphate Receptor 3 in Malaria-associated Acute Lung Injury/acute Respiratory Distress Syndrome in a Mouse Model
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This study aimed to investigate the expression of sphingosine kinase 1 (SphK-1) and sphingosine 1-phosphate receptor 3 (S1PR-3) in a mouse model of malaria-associated acute lung injury/acute respiratory distress syndrome (ALI/ARDS). DBA/2 mice were infected with Plasmodium berghei ANKA to generate an experimental model of malaria-associated ALI/ARDS. The infected mice were divided into 2 groups based on the histopathological study of lung tissues: those with and those without ALI/ARDS. The expression of the SphK-1 and S1PR-3 proteins in the lung tissues was investigated using immunohistochemical staining and Western blot analysis. In addition, the S1P level was quantified in plasma and lung tissues using an enzyme-linked immunosorbent assay (ELISA). The results demonstrated that the cellular expression of the SphK-1 and S1PR-3 proteins was significantly upregulated in endothelial cells, alveolar epithelial cells and alveolar macrophages in the lung tissues of malaria-infected mice with ALI/ARDS compared with those in the control groups. The increased expression of the SphK-1 and S1PR-3 proteins was confirmed using Western blot analysis. The concentration of S1P in plasma and lung tissues was significantly decreased in malaria-infected mice with ALI/ARDS compared with non-ALI/ARDS and control mice. Furthermore, increased expression of the SphK-1 and S1PR-3 proteins significantly correlated with lung injury scores and S1P concentrations in malaria-infected mice with ALI/ARDS. These findings highlight increased expression of SphK-1 and S1PR-3 in the lung tissues of malaria-infected mice with ALI/ARDS.
Hou X, Zhou T, Wang Q, Chen P, Zhang M, Wu L Parasit Vectors. 2024; 17(1):433.
PMID: 39427197 PMC: 11489997. DOI: 10.1186/s13071-024-06520-1.
Vieira-Santos F, de Medeiros Brito R, Lopes C, Leal-Silva T, Souza J, Amorim C Heliyon. 2024; 10(14):e33739.
PMID: 39108859 PMC: 11301218. DOI: 10.1016/j.heliyon.2024.e33739.
Peng J, Tang R, He J, Yu Q, Wang D, Qi D J Transl Med. 2024; 22(1):535.
PMID: 38840216 PMC: 11151509. DOI: 10.1186/s12967-024-05220-9.
Wu J, Liang Y, Fu P, Feng A, Lu Q, Unwalla H Int J Mol Sci. 2023; 24(22).
PMID: 38003272 PMC: 10671260. DOI: 10.3390/ijms242216083.
Signal Transduction and Gene Regulation in the Endothelium.
Levesque M, Hla T Cold Spring Harb Perspect Med. 2022; 13(1).
PMID: 35667710 PMC: 9722983. DOI: 10.1101/cshperspect.a041153.