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HDL Mimetic Peptides. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1377:141-151. [DOI: 10.1007/978-981-19-1592-5_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Rivas-Urbina A, Rull A, Aldana-Ramos J, Santos D, Puig N, Farre-Cabrerizo N, Benitez S, Perez A, de Gonzalo-Calvo D, Escola-Gil JC, Julve J, Ordoñez-Llanos J, Sanchez-Quesada JL. Subcutaneous Administration of Apolipoprotein J-Derived Mimetic Peptide d-[113-122]apoJ Improves LDL and HDL Function and Prevents Atherosclerosis in LDLR-KO Mice. Biomolecules 2020; 10:biom10060829. [PMID: 32485898 PMCID: PMC7356811 DOI: 10.3390/biom10060829] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/19/2020] [Accepted: 05/21/2020] [Indexed: 12/17/2022] Open
Abstract
Mimetic peptides are potential therapeutic agents for atherosclerosis. d-[113–122]apolipoprotein (apo) J (d-[113–122]apoJ) is a 10-residue peptide that is predicted to form a class G* amphipathic helix 6 from apoJ; it shows anti-inflammatory and anti-atherogenic properties. In the present study, we analyzed the effect of d-[113–122]apoJ in low-density lipoprotein receptor knockout mice(LDLR-KO) on the development of atherosclerosis and lipoprotein function. Fifteen-week-old female LDLR-KO mice fed an atherogenic Western-type diet were treated for eight weeks with d-[113–122]apoJ peptide, a scrambled peptide, or vehicle. Peptides were administered subcutaneously three days per week (200 µg in 100 µL of saline). After euthanasia, blood and hearts were collected and the aortic arch was analyzed for the presence of atherosclerotic lesions. Lipoproteins were isolated and their composition and functionality were studied. The extent of atherosclerotic lesions was 43% lower with d-[113–122]apoJ treatment than with the vehicle or scramble. The lipid profile was similar between groups, but the high-density lipoprotein (HDL) of d-[113–122]apoJ-treated mice had a higher antioxidant capacity and increased ability to promote cholesterol efflux than the control group. In addition, low-density lipoprotein (LDL) from d-[113–122]apoJ-treated mice was more resistant to induced aggregation and presented lower electronegativity than in mice treated with d-[113–122]apoJ. Our results demonstrate that the d-[113–122]apoJ peptide prevents the extent of atherosclerotic lesions, which could be partially explained by the improvement of lipoprotein functionality.
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Affiliation(s)
- Andrea Rivas-Urbina
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
- Biochemistry and Molecular Biology Department, Universitat Autònoma de Barcelona, 08193 Cerdanyola, Spain
| | - Anna Rull
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
- Hospital Universitari Joan XXIII, IISPV, Universitat Rovira i Virgili, 43005 Tarragona, Spain
| | - Joile Aldana-Ramos
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
| | - David Santos
- Molecular Basis of Cardiovascular Risk, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (D.S.); (N.F.-C.); (J.C.E.-G.); (J.J.)
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Institute of Health Carlos III, 28029 Madrid, Spain;
| | - Nuria Puig
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
| | - Nuria Farre-Cabrerizo
- Molecular Basis of Cardiovascular Risk, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (D.S.); (N.F.-C.); (J.C.E.-G.); (J.J.)
| | - Sonia Benitez
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
| | - Antonio Perez
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Institute of Health Carlos III, 28029 Madrid, Spain;
- Endocrinology Department, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
| | - David de Gonzalo-Calvo
- Translational Research in Respiratory Medicine, University Hospital Arnau de Vilanova and Santa Maria, IRBLleida, 25198 Lleida, Spain;
- CIBER of Respiratory Diseases (CIBERES), Institute of Health Carlos III, 28029 Madrid, Spain
| | - Joan Carles Escola-Gil
- Molecular Basis of Cardiovascular Risk, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (D.S.); (N.F.-C.); (J.C.E.-G.); (J.J.)
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Institute of Health Carlos III, 28029 Madrid, Spain;
| | - Josep Julve
- Molecular Basis of Cardiovascular Risk, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (D.S.); (N.F.-C.); (J.C.E.-G.); (J.J.)
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Institute of Health Carlos III, 28029 Madrid, Spain;
| | - Jordi Ordoñez-Llanos
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
- Biochemistry and Molecular Biology Department, Universitat Autònoma de Barcelona, 08193 Cerdanyola, Spain
| | - Jose Luis Sanchez-Quesada
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain; (A.R.-U.); (A.R.); (J.A.-R.); (N.P.); (S.B.); (J.O.-L.)
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Institute of Health Carlos III, 28029 Madrid, Spain;
- Correspondence: ; Tel.: +34-35537588
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Rivas-Urbina A, Rull A, Montoliu-Gaya L, Pérez-Cuellar M, Ordóñez-Llanos J, Villegas S, Sánchez-Quesada JL. Low-density lipoprotein aggregation is inhibited by apolipoprotein J-derived mimetic peptide D-[113-122]apoJ. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1865:158541. [PMID: 31672573 DOI: 10.1016/j.bbalip.2019.158541] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 09/25/2019] [Accepted: 09/28/2019] [Indexed: 12/17/2022]
Abstract
Mimetic peptides are promising therapeutic agents for atherosclerosis prevention. A 10-residue class G* peptide from apolipoprotein J (apoJ), namely, D-[113-122]apoJ, possesses anti-inflammatory and anti-atherogenic properties. This prompted us to determine its effect on the aggregation process of low-density lipoprotein (LDL) particles, an early event in the development of atherosclerosis. LDL particles with and without [113-122]apoJ peptide were incubated at 37 °C with sphingomyelinase (SMase) or were left to aggregate spontaneously at room temperature. The aggregation process was analyzed by size-exclusion chromatography (SEC), native gradient gel electrophoresis (GGE), absorbance at 405 nm, dynamic light scattering (DLS), and transmission electronic microscopy (TEM). In addition, circular dichroism was used to determine changes in the secondary structure of apoB, and SDS-PAGE was performed to assess apoB degradation. At an equimolar ratio of [113-122]apoJ peptide to apoB-100, [113-122]apoJ inhibited both SMase-induced or spontaneous LDL aggregation. All methods showed that [113-122]apoJ retarded the progression of SMase-induced LDL aggregation at long incubation times. No effect of [113-122]apoJ on apoB secondary structure was observed. Binding experiments showed that [113-122]apoJ presents low affinity for native LDL but binds readily to LDL during the first stages of aggregation. Laurdan fluorescence experiments showed that mild aggregation of LDL resulted in looser lipid packaging, which was partially prevented by D-[113-122]apoJ. These results demonstrate that [113-122]apoJ peptide prevents SMase-induced LDL aggregation at an equimolar ratio and opens the possibility for the use of this peptide as a therapeutic tool.
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Affiliation(s)
- Andrea Rivas-Urbina
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), Barcelona, Spain; Biochemistry and Molecular Biology Department, Universitat Autònoma de Barcelona, Cerdanyola, Spain
| | - Anna Rull
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Laia Montoliu-Gaya
- Biochemistry and Molecular Biology Department, Universitat Autònoma de Barcelona, Cerdanyola, Spain
| | - Montserrat Pérez-Cuellar
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Jordi Ordóñez-Llanos
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), Barcelona, Spain; Biochemistry and Molecular Biology Department, Universitat Autònoma de Barcelona, Cerdanyola, Spain
| | - Sandra Villegas
- Biochemistry and Molecular Biology Department, Universitat Autònoma de Barcelona, Cerdanyola, Spain.
| | - Jose Luis Sánchez-Quesada
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de Sant Pau (IIB Sant Pau), Barcelona, Spain; CIBER of Diabetes and Metabolic Diseases (CIBERDEM), Spain.
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Mishra VK, Anantharamaiah GM. High-Resolution Structural Studies Elucidate Antiatherogenic and Anti-Inflammatory Properties of Peptides Designed to Mimic Amphipathic α-Helical Domains of Apolipoprotein A-I. Nat Prod Commun 2019; 14. [PMID: 32864035 PMCID: PMC7451220 DOI: 10.1177/1934578x19849131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Peptides designed to mimic the antiatherogenic and anti-inflammatory properties of apolipoprotein A-I show that although lipid association is required, not all lipid-associating peptides exhibit these properties. Our studies of a series of peptides showed that peptides with aromatic residues at the center of the nonpolar face were able to interact with inflammatory lipids and inhibited inflammation, which resulted in the amelioration of several lipid-mediated disorders such as lesion development, tumor formation, and Alzheimer's plaque formation. The pK a values determined using 13C nuclear magnetic resonance (NMR) spectroscopy of K residues located at the polar-nonpolar interface provided the first clue to the relative orientations of the peptide helices with respect to each other and around the edge of the lipid discoidal complexes. High-resolution 1H-NMR studies of peptide-lipid discoidal complex confirmed the amphipathic α-helical structure of the peptide, location of aromatic residues of the peptide closer to the polar-nonpolar interface, and head-to-tail arrangement of the peptide helices around the edge of the disc. Amphipathic α-helical structure and the location of aromatic residues (F, W, Y) closer to the polar-nonpolar interface in a lipid environment allow the peptide to strongly bind oxidized lipids resulting in its anti-inflammatory properties.
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Affiliation(s)
- Vinod K Mishra
- Natural Science Division, Snead State Community College, Boaz, AL, USA
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Saewu A, Kadunganattil S, Raghupathy R, Kongmanas K, Diaz-Astudillo P, Hermo L, Tanphaichitr N. Clusterin in the mouse epididymis: possible roles in sperm maturation and capacitation. Reproduction 2017; 154:867-880. [DOI: 10.1530/rep-17-0518] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 08/17/2017] [Accepted: 10/02/2017] [Indexed: 01/23/2023]
Abstract
Clusterin (CLU) is known as an extracellular chaperone for proteins under stress, thus preventing them from aggregation and precipitation. We showed herein that CLU, expressed by principal cells of the mouse caput epididymis, was present in high amounts in the lumen. In the cauda epididymis, CLU bound tightly to the sperm head surface and its amount on total sperm was similar to that in the bathing luminal fluid. In both immotile and motile caudal epididymal sperm, CLU was localized over the entire sperm head except at the convex ridge, although in the motile sperm population, the CLU immunofluorescence pattern was distinctively mottled with a lower intensity. However, when motile sperm became capacitated, CLU was relocalized to the head hook region, with immunofluorescence intensity being higher than that on the non-capacitated counterparts. Under a slightly acidic pH of the epididymal lumen, CLU may chaperone some luminal proteins and deliver them onto the sperm surface. Immunoprecipitation of epididymal fluid proteins indicated that CLU interacted with SED1, an important egg-binding protein present in a high amount in the epididymal lumen. In a number of non-capacitated sperm, fractions of SED1 and CLU co-localized, but after capacitation, SED1 and CLU dissociated from one another. While CLU moved to the sperm head hook, SED1 translocated to the head convex ridge, the egg-binding site. Overall, CLU localization patterns can serve as biomarkers of immotile sperm, and non-capacitated and capacitated sperm in mice. The chaperone role of CLU may also be important for sperm maturation and capacitation.
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Montoliu-Gaya L, Mulder SD, Veerhuis R, Villegas S. Effects of an Aβ-antibody fragment on Aβ aggregation and astrocytic uptake are modulated by apolipoprotein E and J mimetic peptides. PLoS One 2017; 12:e0188191. [PMID: 29155887 PMCID: PMC5695774 DOI: 10.1371/journal.pone.0188191] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 11/02/2017] [Indexed: 01/23/2023] Open
Abstract
Aβ-Immunotherapy has long been studied in the treatment of Alzheimer’s disease (AD), but not how other molecules involved in the disease can affect antibody performance. We previously designed an antibody fragment, scFv-h3D6, and showed that it precludes Aβ-induced cytotoxicity by withdrawing Aβ oligomers from the amyloid pathway towards a non-toxic, worm-like pathway. ScFv-h3D6 was effective at the behavioral, cellular, and molecular levels in the 3xTg-AD mouse model. Because scFv-h3D6 treatment restored apolipoprotein E (apoE) and J (apoJ) concentrations to non-pathological values, and Aβ internalization by glial cells was found to be decreased in the presence of these apolipoproteins, we now aimed to test the influence of scFv-h3D6 on Aβ aggregation and cellular uptake by primary human astrocytes in the presence of therapeutic apoE and apoJ mimetic peptides (MPs). Firstly, we demonstrated by CD and FTIR that the molecules used in this work were well folded. Next, interactions between apoE or apoJ-MP, scFv-h3D6 and Aβ were studied by CD. The conformational change induced by the interaction of Aβ with apoE-MP was much bigger than the induced with apoJ-MP, in line with the observed formation of protective worm-like fibrils by the scFv-h3D6/Aβ complex in the presence of apoJ-MP, but not of apoE-MP. ScFv-h3D6, apoJ-MP, and apoE-MP to a different extent reduced Aβ uptake by astrocytes, and apoE-MP partially interfered with the dramatic reduction by scFv-h3D6 while apoJ-MP had no effect on scFv-h3D6 action. As sustained Aβ uptake by astrocytes may impair their normal functions, and ultimately neuronal viability, this work shows another beneficence of scFv-h3D6 treatment, which is not further improved by the use of apoE or apoJ mimetic peptides.
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Affiliation(s)
- Laia Montoliu-Gaya
- Departament de Bioquímica i Biologia Molecular, Facultat de Biociències, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - Sandra D. Mulder
- Clinical Chemistry Department, Amsterdam Neuroscience, VU University Medical Center, Amsterdam, The Netherlands
| | - Robert Veerhuis
- Clinical Chemistry Department, Amsterdam Neuroscience, VU University Medical Center, Amsterdam, The Netherlands
- Psychiatry Department, Amsterdam Neuroscience, VU University Medical Center, Amsterdam, The Netherlands
- * E-mail: (RV); (SV)
| | - Sandra Villegas
- Departament de Bioquímica i Biologia Molecular, Facultat de Biociències, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
- * E-mail: (RV); (SV)
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Davies SS, Guo L. Lipid peroxidation generates biologically active phospholipids including oxidatively N-modified phospholipids. Chem Phys Lipids 2014; 181:1-33. [PMID: 24704586 DOI: 10.1016/j.chemphyslip.2014.03.002] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 02/28/2014] [Accepted: 03/18/2014] [Indexed: 12/25/2022]
Abstract
Peroxidation of membranes and lipoproteins converts "inert" phospholipids into a plethora of oxidatively modified phospholipids (oxPL) that can act as signaling molecules. In this review, we will discuss four major classes of oxPL: mildly oxygenated phospholipids, phospholipids with oxidatively truncated acyl chains, phospholipids with cyclized acyl chains, and phospholipids that have been oxidatively N-modified on their headgroups by reactive lipid species. For each class of oxPL we will review the chemical mechanisms of their formation, the evidence for their formation in biological samples, the biological activities and signaling pathways associated with them, and the catabolic pathways for their elimination. We will end by briefly highlighting some of the critical questions that remain about the role of oxPL in physiology and disease.
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Affiliation(s)
- Sean S Davies
- Division of Clinical Pharmacology, Department of Pharmacology, Vanderbilt University, United States.
| | - Lilu Guo
- Division of Clinical Pharmacology, Department of Pharmacology, Vanderbilt University, United States
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Abstract
PURPOSE OF REVIEW HDL cholesterol concentration is inversely correlated with cardiovascular disease and has a wide range of functions involved in many systems. The purpose of this review is to summarize HDL functionality, its relevance to atherosclerosis and factors affecting HDL functions. RECENT FINDINGS The contribution of HDL to reverse cholesterol transport may not be as great as first envisaged. However, it still plays an important role in cholesterol efflux from peripheral tissues. The capacity of HDL to promote cellular cholesterol efflux in an ex-vivo model has been reported to correlate more closely with carotid intima-media thickness than HDL cholesterol concentration. Recently, a variety of other functions of HDL have been described including antimicrobial, antioxidant, antiglycation, anti-inflammatory, nitric oxide--inducing, antithrombotic and antiatherogenic activity and immune modulation as well as a potential role in glucose homeostasis, diabetes pathophysiology and complications. SUMMARY HDL has a wide range of functions some of which are independent of its cholesterol content. Its cargo of apolipoproteins, various proteins and phospholipids contributes most to its various functions. These functions are affected by a number of genetic, physiological and pathological factors.
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Affiliation(s)
- Handrean Soran
- University Department of Medicine, Central Manchester and Manchester Children University Hospital NHS Foundation Trust, School of Biomedicine, University of Manchester, Manchester, UK
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Current world literature. Curr Opin Cardiol 2012; 27:441-54. [PMID: 22678411 DOI: 10.1097/hco.0b013e3283558773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Nayyar G, Mishra VK, Handattu SP, Palgunachari MN, Shin R, McPherson DT, Deivanayagam CCS, Garber DW, Segrest JP, Anantharamaiah GM. Sidedness of interfacial arginine residues and anti-atherogenicity of apolipoprotein A-I mimetic peptides. J Lipid Res 2012; 53:849-858. [PMID: 22377531 DOI: 10.1194/jlr.m019844] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
To test the hypothesis that sidedness of interfacial arginine (Arg) in apoA-I mimetic peptides, similar to that observed in apoA-I (Bashtovyy, D. et al. 2011. Sequence conservation of apolipoprotein A-I affords novel insights into HDL structure-function. J. Lipid Res. 52: 435-450.), may be important for biological activity, we compared properties of 4F and analogs, [K⁴,¹⁵>R]4F and [K⁹,¹³>R]4F, with Lys>Arg substitutions on the right and left side, respectively, of the 4F amphipathic helix. Intraperitoneal administration of these peptides into female apoE null mice (n = 13 in each group) reduced en face lesions significantly compared with controls; 4F and [K⁴,¹⁵>R]4F were equally effective whereas [K⁹,¹³>R]4F was less effective. Turnover experiments indicated that [K⁴,¹⁵>R]4F reached the highest, whereas [K⁹,¹³>R]4F had the lowest, plasma peak levels with a similar half life as the [K⁴,¹⁵>R]4F analog. The half life of 4F was two times longer than the other two peptides. The order in their abilities to associate with HDL in human plasma, generation of apoA-I particles with pre-β mobility from isolated HDL, lipid associating ability, and sensitivity of lipid complexes to trypsin digestion was: 4F>[K⁴,¹⁵,>R]4F>[K⁹,¹³>R]4F. These studies support our hypothesis that the sidedness of interfacial Arg residues in the polar face of apoA-I mimetics results in differential biological properties.
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Affiliation(s)
- Gaurav Nayyar
- The Atherosclerosis Research Unit, Departments of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Vinod K Mishra
- The Atherosclerosis Research Unit, Departments of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294.
| | - Shaila P Handattu
- The Atherosclerosis Research Unit, Departments of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Mayakonda N Palgunachari
- The Atherosclerosis Research Unit, Departments of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Ronald Shin
- Department of Biochemistry and Molecular Genetics and Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294
| | - David T McPherson
- Center for AIDS Research, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Champion C S Deivanayagam
- Center for Biophysical Sciences and Engineering, University of Alabama at Birmingham, Birmingham, AL 35294
| | - David W Garber
- The Atherosclerosis Research Unit, Departments of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Jere P Segrest
- The Atherosclerosis Research Unit, Departments of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294; Department of Biochemistry and Molecular Genetics and Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294
| | - G M Anantharamaiah
- The Atherosclerosis Research Unit, Departments of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294; Department of Biochemistry and Molecular Genetics and Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294
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