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Carmo HRP, Bonilha I, Barreto J, Tognolini M, Zanotti I, Sposito AC. High-Density Lipoproteins at the Interface between the NLRP3 Inflammasome and Myocardial Infarction. Int J Mol Sci 2024; 25:1290. [PMID: 38279290 PMCID: PMC10816227 DOI: 10.3390/ijms25021290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/10/2024] [Accepted: 01/18/2024] [Indexed: 01/28/2024] Open
Abstract
Despite significant therapeutic advancements, morbidity and mortality following myocardial infarction (MI) remain unacceptably high. This clinical challenge is primarily attributed to two significant factors: delayed reperfusion and the myocardial injury resulting from coronary reperfusion. Following reperfusion, there is a rapid intracellular pH shift, disruption of ionic balance, heightened oxidative stress, increased activity of proteolytic enzymes, initiation of inflammatory responses, and activation of several cell death pathways, encompassing apoptosis, necroptosis, and pyroptosis. The inflammatory cell death or pyroptosis encompasses the activation of the intracellular multiprotein complex known as the NLRP3 inflammasome. High-density lipoproteins (HDL) are endogenous particles whose components can either promote or mitigate the activation of the NLRP3 inflammasome. In this comprehensive review, we explore the role of inflammasome activation in the context of MI and provide a detailed analysis of how HDL can modulate this process.
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Affiliation(s)
- Helison R. P. Carmo
- Atherosclerosis and Vascular Biology Laboratory (Aterolab), Division of Cardiology, State University of Campinas (UNICAMP), Campinas 13084-971, SP, Brazil; (H.R.P.C.); (I.B.); (J.B.); (A.C.S.)
| | - Isabella Bonilha
- Atherosclerosis and Vascular Biology Laboratory (Aterolab), Division of Cardiology, State University of Campinas (UNICAMP), Campinas 13084-971, SP, Brazil; (H.R.P.C.); (I.B.); (J.B.); (A.C.S.)
| | - Joaquim Barreto
- Atherosclerosis and Vascular Biology Laboratory (Aterolab), Division of Cardiology, State University of Campinas (UNICAMP), Campinas 13084-971, SP, Brazil; (H.R.P.C.); (I.B.); (J.B.); (A.C.S.)
| | | | - Ilaria Zanotti
- Department of Food and Drug, University of Parma, 43124 Parma, Italy;
| | - Andrei C. Sposito
- Atherosclerosis and Vascular Biology Laboratory (Aterolab), Division of Cardiology, State University of Campinas (UNICAMP), Campinas 13084-971, SP, Brazil; (H.R.P.C.); (I.B.); (J.B.); (A.C.S.)
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2
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Association between Systemic Immunity-Inflammation Index and Hyperlipidemia: A Population-Based Study from the NHANES (2015-2020). Nutrients 2023; 15:nu15051177. [PMID: 36904176 PMCID: PMC10004774 DOI: 10.3390/nu15051177] [Citation(s) in RCA: 43] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 02/23/2023] [Accepted: 02/25/2023] [Indexed: 03/03/2023] Open
Abstract
The systemic immunity-inflammation index (SII) is a novel inflammatory marker, and aberrant blood lipid levels are linked to inflammation. This study aimed to look at the probable link between SII and hyperlipidemia. The current cross-sectional investigation was carried out among people with complete SII and hyperlipidemia data from the 2015-2020 National Health and Nutrition Examination Survey (NHANES). SII was computed by dividing the platelet count × the neutrophil count/the lymphocyte count. The National Cholesterol Education Program standards were used to define hyperlipidemia. The nonlinear association between SII and hyperlipidemia was described using fitted smoothing curves and threshold effect analyses. A total of 6117 US adults were included in our study. A substantial positive correlation between SII and hyperlipidemia was found [1.03 (1.01, 1.05)] in a multivariate linear regression analysis. Age, sex, body mass index, smoking status, hypertension, and diabetes were not significantly correlated with this positive connection, according to subgroup analysis and interaction testing (p for interaction > 0.05). Additionally, we discovered a non-linear association between SII and hyperlipidemia with an inflection point of 479.15 using a two-segment linear regression model. Our findings suggest a significant association between SII levels and hyperlipidemia. More large-scale prospective studies are needed to investigate the role of SII in hyperlipidemia.
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Napolitano G, Fasciolo G, Tomajoli MTM, Carlucci A, Ascione E, Salvatore A. Effects of superoxide anion attack on the lipoprotein HDL. Mol Cell Biochem 2022; 478:1059-1066. [PMID: 36219354 PMCID: PMC10126046 DOI: 10.1007/s11010-022-04563-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 09/15/2022] [Indexed: 11/30/2022]
Abstract
High-density lipoprotein (HDL) is an anti-atherosclerotic lipoprotein. Thanks to the activity of apolipoprotein ApoA1, the principal protein component of HDL, this last is responsible for converting cholesterol into ester form and transporting excessive cholesterol to the liver ("reverse cholesterol transport" RCT). When HDL undergoes oxidation, it becomes dysfunctional and proatherogenic. ApoA1 is a target of oxidation, and its alteration affects RCT and contributes to atherosclerosis development. Until now, the mechanism of HDL oxidation is not fully understood and only hydroxyl radicals seem to induce direct oxidation of protein and lipidic components of lipoproteins. Here we demonstrate that superoxide radical, widely produced in early atherosclerosis, directly oxidizes HDL, and as a consequence, ApoA1 undergoes structural alterations impairing its anti-atherosclerotic functions. Our results highlight in an in vitro system the potential mechanism by which O2·- triggers atherosclerotic pathogenesis in vivo. Our study gets the basis for therapeutic approaches focused on the management of superoxide generation in early atherosclerosis onset.
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Affiliation(s)
- Gaetana Napolitano
- Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli Parthenope, via Acton n. 38-I, 80133, Naples, Italy.
- International PhD Programme/UNESCO Chair "Environment, Resources and Sustainable Development", Department of Science and Technology, Parthenope University of Naples, Naples, Italy.
| | - Gianluca Fasciolo
- Dipartimento di Biologia, Università di Napoli Federico II, Complesso Universitario Monte Sant'Angelo, Via Cinthia, 80126, Naples, Italy
| | - Maria Teresa Muscari Tomajoli
- Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli Parthenope, via Acton n. 38-I, 80133, Naples, Italy
- International PhD Programme/UNESCO Chair "Environment, Resources and Sustainable Development", Department of Science and Technology, Parthenope University of Naples, Naples, Italy
| | - Alessandro Carlucci
- S. Antimo Industrial Development Department, Kedrion Biopharma, Strada Statale 7 Bis 19, Sant'Antimo, 80029, Napoli, Italia
| | - Ester Ascione
- S. Antimo Industrial Development Department, Kedrion Biopharma, Strada Statale 7 Bis 19, Sant'Antimo, 80029, Napoli, Italia
| | - Alfonso Salvatore
- S. Antimo Industrial Development Department, Kedrion Biopharma, Strada Statale 7 Bis 19, Sant'Antimo, 80029, Napoli, Italia
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4
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Tang L, Li J, Zhao Q, Pan T, Zhong H, Wang W. Advanced and Innovative Nano-Systems for Anticancer Targeted Drug Delivery. Pharmaceutics 2021; 13:pharmaceutics13081151. [PMID: 34452113 PMCID: PMC8398618 DOI: 10.3390/pharmaceutics13081151] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/18/2021] [Accepted: 07/23/2021] [Indexed: 12/16/2022] Open
Abstract
The encapsulation of therapeutic agents into nano-based drug delivery system for cancer treatment has received considerable attention in recent years. Advancements in nanotechnology provide an opportunity for efficient delivery of anticancer drugs. The unique properties of nanoparticles not only allow cancer-specific drug delivery by inherent passive targeting phenomena and adopting active targeting strategies, but also improve the pharmacokinetics and bioavailability of the loaded drugs, leading to enhanced therapeutic efficacy and safety compared to conventional treatment modalities. Small molecule drugs are the most widely used anticancer agents at present, while biological macromolecules, such as therapeutic antibodies, peptides and genes, have gained increasing attention. Therefore, this review focuses on the recent achievements of novel nano-encapsulation in targeted drug delivery. A comprehensive introduction of intelligent delivery strategies based on various nanocarriers to encapsulate small molecule chemotherapeutic drugs and biological macromolecule drugs in cancer treatment will also be highlighted.
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Affiliation(s)
- Lu Tang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (L.T.); (J.L.); (Q.Z.); (T.P.)
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, China
| | - Jing Li
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (L.T.); (J.L.); (Q.Z.); (T.P.)
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, China
| | - Qingqing Zhao
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (L.T.); (J.L.); (Q.Z.); (T.P.)
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, China
| | - Ting Pan
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (L.T.); (J.L.); (Q.Z.); (T.P.)
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, China
| | - Hui Zhong
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Correspondence: (H.Z.); (W.W.)
| | - Wei Wang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (L.T.); (J.L.); (Q.Z.); (T.P.)
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, China
- Correspondence: (H.Z.); (W.W.)
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Landi C, Vantaggiato L, Shaba E, Cameli P, Carleo A, d'Alessandro M, Bergantini L, Bargagli E, Bini L. Differential redox proteomic profiles of serum from severe asthma patients after one month of benralizumab and mepolizumab treatment. Pulm Pharmacol Ther 2021; 70:102060. [PMID: 34303823 DOI: 10.1016/j.pupt.2021.102060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/05/2021] [Accepted: 07/20/2021] [Indexed: 10/20/2022]
Abstract
Mepolizumab and Benralizumab are biological drugs for severe asthma patients able to reduce moderate-to-severe exacerbation rate (peripheral eosinophilial % mepolizumab 1.6 ± 1.2; benralizumab 0; p < 0.0001), improving the quality of life and lung function parameters (FEV1%: mepolizumab 87.1 ± 21.5; benralizumab 89.7 ± 15, p < 0.04). Here we report a preliminary redox proteomic study highlighting the level of oxidative burst present in serum from patients before and after one month of both treatments. Our results highlighted apolipoprotein A1 oxidation after Mepolizumab treatment, that could be related to HDL functionality and could represent a potential biomarker for the treatment. On the other hand, after one month of Benralizumab we detected higher oxidation levels of ceruloplasmin and transthyretin, considered an important oxidative stress biomarker which action help to maintain redox homeostasis.
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Affiliation(s)
- C Landi
- Functional Proteomics Lab, Department of Life Sciences, University of Siena, Siena, Italy.
| | - L Vantaggiato
- Functional Proteomics Lab, Department of Life Sciences, University of Siena, Siena, Italy
| | - E Shaba
- Functional Proteomics Lab, Department of Life Sciences, University of Siena, Siena, Italy
| | - P Cameli
- UOC Respiratory Diseases and Lung Transplantation, Department Internal and Specialist Medicine, University of Siena, Siena, Italy
| | - A Carleo
- Department of Pulmonology, Hannover Medical School, Hannover, Germany
| | - M d'Alessandro
- UOC Respiratory Diseases and Lung Transplantation, Department Internal and Specialist Medicine, University of Siena, Siena, Italy
| | - L Bergantini
- UOC Respiratory Diseases and Lung Transplantation, Department Internal and Specialist Medicine, University of Siena, Siena, Italy
| | - E Bargagli
- UOC Respiratory Diseases and Lung Transplantation, Department Internal and Specialist Medicine, University of Siena, Siena, Italy
| | - L Bini
- Functional Proteomics Lab, Department of Life Sciences, University of Siena, Siena, Italy
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6
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Schoch L, Badimon L, Vilahur G. Unraveling the Complexity of HDL Remodeling: On the Hunt to Restore HDL Quality. Biomedicines 2021; 9:biomedicines9070805. [PMID: 34356869 PMCID: PMC8301317 DOI: 10.3390/biomedicines9070805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 12/26/2022] Open
Abstract
Increasing evidence has cast doubt over the HDL-cholesterol hypothesis. The complexity of the HDL particle and its proven susceptibility to remodel has paved the way for intense molecular investigation. This state-of-the-art review discusses the molecular changes in HDL particles that help to explain the failure of large clinical trials intending to interfere with HDL metabolism, and details the chemical modifications and compositional changes in HDL-forming components, as well as miRNA cargo, that render HDL particles ineffective. Finally, the paper discusses the challenges that need to be overcome to shed a light of hope on HDL-targeted approaches.
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Affiliation(s)
- Leonie Schoch
- Cardiovascular Program, Institut de Recerca, Hospital Santa Creu i Sant Pau, 08025 Barcelona, Spain; (L.S.); (L.B.)
- Faculty of Medicine, University of Barcelona (UB), 08036 Barcelona, Spain
| | - Lina Badimon
- Cardiovascular Program, Institut de Recerca, Hospital Santa Creu i Sant Pau, 08025 Barcelona, Spain; (L.S.); (L.B.)
- CiberCV, 08025 Barcelona, Spain
- Cardiovascular Research Chair, UAB, 08025 Barcelona, Spain
| | - Gemma Vilahur
- Cardiovascular Program, Institut de Recerca, Hospital Santa Creu i Sant Pau, 08025 Barcelona, Spain; (L.S.); (L.B.)
- CiberCV, 08025 Barcelona, Spain
- Correspondence: ; Tel.: +34-935537100
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7
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Márquez AB, Nazir S, van der Vorst EP. High-Density Lipoprotein Modifications: A Pathological Consequence or Cause of Disease Progression? Biomedicines 2020; 8:biomedicines8120549. [PMID: 33260660 PMCID: PMC7759904 DOI: 10.3390/biomedicines8120549] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/17/2020] [Accepted: 11/25/2020] [Indexed: 12/12/2022] Open
Abstract
High-density lipoprotein (HDL) is well-known for its cardioprotective effects, as it possesses anti-inflammatory, anti-oxidative, anti-thrombotic, and cytoprotective properties. Traditionally, studies and therapeutic approaches have focused on raising HDL cholesterol levels. Recently, it became evident that, not HDL cholesterol, but HDL composition and functionality, is probably a more fruitful target. In disorders, such as chronic kidney disease or cardiovascular diseases, it has been observed that HDL is modified and becomes dysfunctional. There are different modification that can occur, such as serum amyloid, an enrichment and oxidation, carbamylation, and glycation of key proteins. Additionally, the composition of HDL can be affected by changes to enzymes such as cholesterol ester transfer protein (CETP), lecithin-cholesterol acyltransferase (LCAT), and phospholipid transfer protein (PLTP) or by modification to other important components. This review will highlight some main modifications to HDL and discuss whether these modifications are purely a consequential result of pathology or are actually involved in the pathology itself and have a causal role. Therefore, HDL composition may present a molecular target for the amelioration of certain diseases, but more information is needed to determine to what extent HDL modifications play a causal role in disease development.
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Affiliation(s)
- Andrea Bonnin Márquez
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, 52074 Aachen, Germany; (A.B.M.); (S.N.)
- Interdisciplinary Center for Clinical Research (IZKF), RWTH Aachen University, 52074 Aachen, Germany
| | - Sumra Nazir
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, 52074 Aachen, Germany; (A.B.M.); (S.N.)
- Interdisciplinary Center for Clinical Research (IZKF), RWTH Aachen University, 52074 Aachen, Germany
| | - Emiel P.C. van der Vorst
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, 52074 Aachen, Germany; (A.B.M.); (S.N.)
- Interdisciplinary Center for Clinical Research (IZKF), RWTH Aachen University, 52074 Aachen, Germany
- Department of Pathology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, 6229 ER Maastricht, The Netherlands
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University Munich, 80336 Munich, Germany
- German Centre for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, 80336 Munich, Germany
- Correspondence: ; Tel.: +49-241-80-36914
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8
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An Increased Plasma Level of ApoCIII-Rich Electronegative High-Density Lipoprotein May Contribute to Cognitive Impairment in Alzheimer's Disease. Biomedicines 2020; 8:biomedicines8120542. [PMID: 33256187 PMCID: PMC7761422 DOI: 10.3390/biomedicines8120542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/24/2020] [Accepted: 11/24/2020] [Indexed: 02/02/2023] Open
Abstract
High-density lipoprotein (HDL) plays a vital role in lipid metabolism and anti-inflammatory activities; a dysfunctional HDL impairs cholesterol efflux pathways. To understand HDL's role in patients with Alzheimer's disease (AD), we analyzed the chemical properties and function. HDL from AD patients (AD-HDL) was separated into five subfractions, H1-H5, using fast-protein liquid chromatography equipped with an anion-exchange column. Subfraction H5, defined as the most electronegative HDL, was increased 5.5-fold in AD-HDL (23.48 ± 17.83%) in comparison with the control HDL (4.24 ± 3.22%). By liquid chromatography mass spectrometry (LC/MSE), AD-HDL showed that the level of apolipoprotein (apo)CIII was elevated but sphingosine-1-phosphate (S1P)-associated apoM and anti-oxidative paraoxonase 1 (PON1) were reduced. AD-HDL showed a lower cholesterol efflux capacity that was associated with the post-translational oxidation of apoAI. Exposure of murine macrophage cell line, RAW 264.7, to AD-HDL induced a vibrant expression of ganglioside GM1 in colocalization with apoCIII on lipid rafts alongside a concomitant increase of tumor necrosis factor-α (TNF-α) detectable in the cultured medium. In conclusion, AD-HDL had a higher proportion of H5, an apoCIII-rich electronegative HDL subfraction. The associated increase in pro-inflammatory (apoCIII, TNF-α) components might favor Amyloid β assembly and neural inflammation. A compromised cholesterol efflux capacity of AD-HDL may also contribute to cognitive impairment.
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9
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Nazir S, Jankowski V, Bender G, Zewinger S, Rye KA, van der Vorst EP. Interaction between high-density lipoproteins and inflammation: Function matters more than concentration! Adv Drug Deliv Rev 2020; 159:94-119. [PMID: 33080259 DOI: 10.1016/j.addr.2020.10.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 09/20/2020] [Accepted: 10/13/2020] [Indexed: 02/07/2023]
Abstract
High-density lipoprotein (HDL) plays an important role in lipid metabolism and especially contributes to the reverse cholesterol transport pathway. Over recent years it has become clear that the effect of HDL on immune-modulation is not only dependent on HDL concentration but also and perhaps even more so on HDL function. This review will provide a concise general introduction to HDL followed by an overview of post-translational modifications of HDL and a detailed overview of the role of HDL in inflammatory diseases. The clinical potential of HDL and its main apolipoprotein constituent, apoA-I, is also addressed in this context. Finally, some conclusions and remarks that are important for future HDL-based research and further development of HDL-focused therapies are discussed.
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Gisonno RA, Prieto ED, Gorgojo JP, Curto LM, Rodriguez ME, Rosú SA, Gaddi GM, Finarelli GS, Cortez MF, Schinella GR, Tricerri MA, Ramella NA. Fibrillar conformation of an apolipoprotein A-I variant involved in amyloidosis and atherosclerosis. Biochim Biophys Acta Gen Subj 2020; 1864:129515. [PMID: 31904503 DOI: 10.1016/j.bbagen.2020.129515] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 12/21/2019] [Accepted: 12/30/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND Different protein conformations may be involved in the development of clinical manifestations associated with human amyloidosis. Although a fibrillar conformation is usually the signature of damage in the tissues of patients, it is not clear whether this species is per se the cause or the consequence of the disease. Hereditary amyloidosis due to variants of apolipoprotein A-I (apoA-I) with a substitution of a single amino acid is characterized by the presence of fibrillar protein within the lesions. Thus mutations result in increased protein aggregation. Here we set up to characterize the folding of a natural variant with a mutation leading to a deletion at position 107 (apoA-I Lys107-0). Patients carrying this variant show amyloidosis and severe atherosclerosis. METHODS We oxidized this variant under controlled concentrations of hydrogen peroxide and analyzed the structure obtained after 30-day incubation by fluorescence, circular dichroism and microscopy approaches. Neutrophils activation was characterized by confocal microscopy. RESULTS We obtained a high yield of well-defined stable fibrillar structures of apoA-I Lys107-0. In an in vitro neutrophils system, we were able to detect the induction of Neutrophils Extracellular Traps (NETs) when we incubated with oxidized apoA-I variants. This effect was exacerbated by the fibrillar structure of oxidized Lys 107-0. CONCLUSIONS We conclude that a pro-inflammatory microenvironment could result in the formation of aggregation-prone species, which, in addition may induce a positive feed-back in the activation of an inflammatory response. GENERAL SIGNIFICANCE These events may explain a close association between amyloidosis due to apoA-I Lys107-0 and atherosclerosis.
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Affiliation(s)
- Romina A Gisonno
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Argentina; Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Calle 60 y 120, La Plata, Argentina
| | - Eduardo D Prieto
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), La Plata, Argentina
| | - Juan P Gorgojo
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), La Plata, Argentina
| | - Lucrecia M Curto
- Instituto de Química y Fisicoquímica Biológicas "Profesor Alejandro C. Paladini" (IQUIFIB) y Departamento de Química Biológica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, CABA, Argentina
| | - M Eugenia Rodriguez
- Centro de Investigación y Desarrollo en Fermentaciones Industriales (CINDEFI), La Plata, Argentina
| | - Silvana A Rosú
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Argentina; Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Calle 60 y 120, La Plata, Argentina
| | - Gisela M Gaddi
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Argentina; Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Calle 60 y 120, La Plata, Argentina
| | | | - M Fernanda Cortez
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Argentina
| | - Guillermo R Schinella
- Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Calle 60 y 120, La Plata, Argentina
| | - M Alejandra Tricerri
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Argentina; Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Calle 60 y 120, La Plata, Argentina.
| | - Nahuel A Ramella
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), Argentina; Facultad de Ciencias Médicas, Universidad Nacional de La Plata, Calle 60 y 120, La Plata, Argentina.
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