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Role of secretory phospholipases in atherogenesis

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Abstract

Elevated circulating levels of secretory phospholipase A2 (sPLA2) are associated with atherosclerotic cardiovascular disease. sPLA2 can contribute to atherogenesis by hydrolyzing phospholipids of circulating lipoproteins and lipoproteins entrapped in the arterial wall and/or in cells that reside in the intima and that participate in the inflammatory response to lipoprotein deposition. This article reviews differences and similarities between sPLA2-IIA, sPLA2-V, and sPLA2-X, all of which are members of this family of enzymes with reported potential proatherogenic features. Published data suggest that each of the enzymes has a distinct profile characterized by differences in tissue expression and localization, capacity to act on phospholipids of cell membranes and lipoproteins, and their interaction with arterial proteoglycans. In addition, the article discusses results from the authors’ laboratory showing that diet-induced or gene-induced hyperlipidemia in mice enhances the expression of sPLA2-V in different tissues, but not sPLA2-IIA. Such differences indicate that these enzymes may have different roles in atherosclerotic cardiovascular disease through their distinct profiles.

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Authors and Affiliations

  1. AstraZeneca, R&D, Bioscience, Mölndal, S-431 83, Sweden

    Eva Hurt-Camejo

  2. Wallenberg Laboratory for Cardiovascular Research, Sahlgrenska University Hospital, Gotheburg, Sweden

    Eva Hurt-Camejo

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  1. Ann-Cathrine Jönsson-Rylander
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  2. Sofia Lundin
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  3. Birgitta Rosengren
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  4. Camilla Pettersson
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  5. Eva Hurt-Camejo
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Correspondence to Eva Hurt-Camejo.

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Jönsson-Rylander, AC., Lundin, S., Rosengren, B. et al. Role of secretory phospholipases in atherogenesis. Curr Atheroscler Rep 10, 252–259 (2008). https://doi.org/10.1007/s11883-008-0039-6

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