| 1. |
- Chyu, Kuang-Yuh, et al.
(author)
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Active and passive immunization for atherosclerosis
- 2007
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In: Current Opinion in Molecular Therapeutics. - 2040-3445. ; 9:2, s. 176-182
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Research review (peer-reviewed)abstract
- This review summarizes experimental findings that highlight the role of immune mechanisms in atherosclerosis and the potential atheroprotective effects of active or passive immunization strategies. Immunomodulation therapy appears to be feasible and effective, suggesting that a vaccine for atherosclerosis can be developed for clinical testing. Given the increasing number of patients with atherosclerotic disease on current therapy, a new therapy is needed and an immunization strategy could provide such a possibility. Several questions regarding this approach remain unanswered, however, such as choice of optimal antigens, choice of most effective adjuvants, the optimal route of administration, durability of effects and safety, but cautious optimism remains that a vaccine-based approach has the potential to become a part of the armamentarium for atherosclerotic vascular disease.
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| 2. |
- Chyu, Kuang-Yuh, et al.
(author)
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Immunization for atherosclerosis
- 2007
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In: Current Atherosclerosis Reports. - : Springer Science and Business Media LLC. - 1523-3804 .- 1534-6242. ; 9:2, s. 104-109
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Research review (peer-reviewed)abstract
- This review summarizes experimental findings that highlight the complex roles of the immune system in atherogenesis. Immune activation can have either proatherogenic or atheroprotective effects. Immune-modulation therapy via an active or passive immunization strategy aims to exploit the atheroprotective aspects of the immune system to modulate atherosclerosis. Several experimental studies have demonstrated that such an approach is feasible and effective, raising the tantalizing possibility that an atheroprotective vaccine can be developed for clinical testing. Several potential immunogens have been identified and tested for their atheroprotective efficacy with variable results. Although several questions such as choice of optimal antigens, choice of most effective adjuvants, the optimal route of administration, durability of effects, and safety remain to be answered, we believe that a vaccine-based approach to manage atherosclerotic cardiovascular disease is a potentially viable paradigm.
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| 3. |
- Dimayuga, Paul C, et al.
(author)
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T Cell Modulation of Intimal Thickening After Vascular Injury. The Bimodal Role of IFN-{gamma} in Immune Deficiency.
- 2005
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In: Arteriosclerosis, Thrombosis and Vascular Biology. - 1524-4636. ; 25:Oct 13, s. 2528-2534
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Journal article (peer-reviewed)abstract
- Background - Immune deficiency results in exuberant intimal thickening after arterial injury. The mechanisms involved are not well defined. We investigated the role of T cells and IFN-gamma in the response to injury in normal and immune-deficient Rag-1KO mice. Methods and Results - Carotid arterial injury was induced in wild-type (WT), Rag-1KO mice, and Rag-1KO mice reconstituted with T cell-enriched splenocytes. The exuberant intimal thickening in Rag-1KO mice compared with WT mice 21 days after injury was reduced by T cell transfer (P < 0.01). Exogenous IFN-gamma starting on the day of injury inhibited intimal thickening in Rag-1KO mice. However, antibody neutralization of endogenous IFN-gamma in Rag-1KO mice starting 7 days after injury decreased intimal thickening, indicating that late presence of IFN-gamma promoted intimal thickening in Rag-1KO mice. Results further suggest that the effect of late IFN-gamma in Rag-1KO mice is mediated in part by increased IRF-1 and iNOS expression, coupled with low SOCS1 expression. Conclusion - T cells inhibit intimal thickening in the early stages of the response to injury through basal IFN-gamma secretion. In the Rag-1KO mice, late IFN-gamma expression promotes intimal thickening. These findings add novel insight to conditions of immune deficiency that affect intimal thickening.
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| 4. |
- Nilsson, Jan, et al.
(author)
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Oxidized lipoprotein autoimmunity: an emerging drug target in cardiovascular disease
- 2006
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In: Future Lipidology. - : Informa UK Limited. - 1746-0875. ; 1:3, s. 321-330
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Research review (peer-reviewed)abstract
- Oxidative modification of low-density lipoprotein (LDL) in the arterial wall is believed to be one of the most important mechanisms involved in the development of atherosclerosis. It is well established that oxidized (Ox)-LDL uptake is responsible for the formation of macrophage foam cells, one of the most characteristic hallmarks of the atherosclerotic plaque, and that the proinflammatory and cytotoxic effects of Ox-LDL play an important role in vascular inflammation and lesion development. More recently, it has become apparent that Ox-LDL is also recognized by the immune system, thus resulting in innate and adaptive immune reactions modulating both Ox-LDL clearance and the vascular inflammatory response. The finding that some of these immune responses have a protective effect against plaque development has focused attention on the potential to develop novel therapies for the prevention and treatment of cardiovascular disease based on the selective activation of this protective immunity by vaccines, or mimicking them directly by using Ox-LDL-specific antibodies.
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