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Article Abstract
Background: People with HIV are at higher risk of atherosclerotic cardiovascular disease than uninfected individuals; however, the molecular mechanisms behind this association remain elusive due to the lack of suitable animal models.
Methods: To study the impact of HIV on atherosclerotic cardiovascular disease, we infected the atheroprone mice with the chimeric virus EcoHIV.
Results: In comparison to uninfected controls, EcoHIV infection increased the ratio of circulating inflammatory monocytes, monocyte recruitment, and CD68 content in the atherosclerotic lesion. These changes occurred independently of alterations in plasma lipid profile or lesion size between groups. Lesions of EcoHIV-infected mice displayed greater vulnerability to rupture, as determined by increased necrotic core area and CD38 content, and reduced presence of collagen compared with uninfected mice. Last, we report the presence of active viral replication of EcoHIV in the atherosclerotic lesion.
Conclusions: Our data suggest that EcoHIV infection in mice resembles the pathogenesis of atherosclerotic cardiovascular disease in people with HIV. Our findings have therapeutic implications for people with HIV, a vulnerable population with an elevated risk of cardiovascular disease.
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| http://dx.doi.org/10.1161/ATVBAHA.125.323004 | DOI Listing |
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