Back to Search
Start Over
Association of Monocyte Migration Marker CD11b With Pulmonary Function in People Living With HIV.
- Source :
-
JAIDS: Journal of Acquired Immune Deficiency Syndromes . Mar2021, Vol. 86 Issue 3, p344-352. 9p. - Publication Year :
- 2021
-
Abstract
- Background: Maladaptive immune responses contribute to the pathogenesis of many chronic lung diseases. Here, we tested hypotheses that CD4 and CD8 T-cell and monocyte phenotypes are associated with lung function in people living with HIV and those without HIV. Methods: Markers of T cell differentiation, activation, exhaustion and senescence, and markers of monocyte recruitment and migration were quantified in 142 HIV-positive and 73 HIV-negative participants of the Pittsburgh HIV Lung Cohort. All participants underwent lung function testing. Results: CD4 or CD8 T-cell phenotypes were not associated with measures of lung function in HIV-positive or HIV-negative participants after adjustment for multiple comparisons. In HIV-positive participants, however, the percentage of classical monocytes that were CD11b+ had positive associations at the Bonferroni-adjusted significance threshold of P = 0.05/63 with prebronchodilator and postbronchodilator forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) ratio (β = 0.36; P = 0.00003 and β = 0.31; P = 0.0003, respectively). In stratified analyses of n = 87 participants with CD4 ≥ 500 cells/µL, associations of percentage of classical monocytes that were CD11b+ with prebronchodilator and postbronchodilator FEV1/FVC ratio were stronger (β = 0.48 and β = 0.41, for pre- and post-, respectively) than in the entire HIV-positive study population. Significant associations of monocyte phenotypes were not observed in HIV-negative participants after adjustment for multiple comparisons. Conclusions: CD11b+ expression on classical monocytes is positively associated with FEV1/FVC ratio in people living with HIV including in those with CD4 T-cell recovery. Given the normal surveillance activity of monocytes, such association suggests this monocyte subset may play a role in preservation of pulmonary function in PLWH. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15254135
- Volume :
- 86
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- JAIDS: Journal of Acquired Immune Deficiency Syndromes
- Publication Type :
- Academic Journal
- Accession number :
- 149296268
- Full Text :
- https://doi.org/10.1097/qai.0000000000002544