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Yang M, Liu Y, Dai J, Li L, Ding X, Xu Z, Mori M, Miyahara H, Sawashita J, Higuchi K. Apolipoprotein A-II induces acute-phase response associated AA amyloidosis in mice through conformational changes of plasma lipoprotein structure. Sci Rep 2018; 8:5620. [PMID: 29618729 PMCID: PMC5884826 DOI: 10.1038/s41598-018-23755-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 03/16/2018] [Indexed: 12/25/2022] Open
Abstract
During acute-phase response (APR), there is a dramatic increase in serum amyloid A (SAA) in plasma high density lipoproteins (HDL). Elevated SAA leads to reactive AA amyloidosis in animals and humans. Herein, we employed apolipoprotein A-II (ApoA-II) deficient (Apoa2 -/- ) and transgenic (Apoa2Tg) mice to investigate the potential roles of ApoA-II in lipoprotein particle formation and progression of AA amyloidosis during APR. AA amyloid deposition was suppressed in Apoa2 -/- mice compared with wild type (WT) mice. During APR, Apoa2 -/- mice exhibited significant suppression of serum SAA levels and hepatic Saa1 and Saa2 mRNA levels. Pathological investigation showed Apoa2 -/- mice had less tissue damage and less inflammatory cell infiltration during APR. Total lipoproteins were markedly decreased in Apoa2 -/- mice, while the ratio of HDL to low density lipoprotein (LDL) was also decreased. Both WT and Apoa2 -/- mice showed increases in LDL and very large HDL during APR. SAA was distributed more widely in lipoprotein particles ranging from chylomicrons to very small HDL in Apoa2 -/- mice. Our observations uncovered the critical roles of ApoA-II in inflammation, serum lipoprotein stability and AA amyloidosis morbidity, and prompt consideration of therapies for AA and other amyloidoses, whose precursor proteins are associated with circulating HDL particles.
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Affiliation(s)
- Mu Yang
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, 290-8621, Japan. .,Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, 77030, USA.
| | - Yingye Liu
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, 290-8621, Japan.,Institute of Pediatric Research, Children's Hospital of Hebei Province, Shijiazhuang, 050031, China
| | - Jian Dai
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, 290-8621, Japan
| | - Lin Li
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, 290-8621, Japan
| | - Xin Ding
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, 290-8621, Japan
| | - Zhe Xu
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, 290-8621, Japan
| | - Masayuki Mori
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, 290-8621, Japan.,Department of Advanced Medicine for Health Promotion, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Matsumoto, 290-8621, Japan
| | - Hiroki Miyahara
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, 290-8621, Japan
| | - Jinko Sawashita
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, 290-8621, Japan.,Department of Biological Science for Intractable Neurological Disease, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Matsumoto, 390-8621, Japan
| | - Keiichi Higuchi
- Department of Aging Biology, Institute of Pathogenesis and Disease Prevention, Shinshu University Graduate School of Medicine, Matsumoto, 290-8621, Japan.,Department of Biological Science for Intractable Neurological Disease, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Matsumoto, 390-8621, Japan
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Wang Y, Sawashita J, Qian J, Zhang B, Fu X, Tian G, Chen L, Mori M, Higuchi K. ApoA-I deficiency in mice is associated with redistribution of apoA-II and aggravated AApoAII amyloidosis. J Lipid Res 2011; 52:1461-70. [PMID: 21622630 DOI: 10.1194/jlr.m013235] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Apolipoprotein A-II (apoA-II) is the second major apolipoprotein following apolipoprotein A-I (apoA-I) in HDL. ApoA-II has multiple physiological functions and can form senile amyloid fibrils (AApoAII) in mice. Most circulating apoA-II is present in lipoprotein A-I/A-II. To study the influence of apoA-I on apoA-II and AApoAII amyloidosis, apoA-I-deficient (C57BL/6J.Apoa1⁻/⁻) mice were used. Apoa1⁻/⁻ mice showed the expected significant reduction in total cholesterol (TC), HDL cholesterol (HDL-C), and triglyceride (TG) plasma levels. Unexpectedly, we found that apoA-I deficiency led to redistribution of apoA-II in HDL and an age-related increase in apoA-II levels, accompanied by larger HDL particle size and an age-related increase in TC, HDL-C, and TG. Aggravated AApoAII amyloidosis was induced in Apoa1⁻/⁻ mice systemically, especially in the heart. These results indicate that apoA-I plays key roles in maintaining apoA-II distribution and HDL particle size. Furthermore, apoA-II redistribution may be the main reason for aggravated AApoAII amyloidosis in Apoa1⁻/⁻ mice. These results may shed new light on the relationship between apoA-I and apoA-II as well as provide new information concerning amyloidosis mechanism and therapy.
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Affiliation(s)
- Yaoyong Wang
- Department of Aging Biology, Institute on Aging and Adaptation, Graduate School of Medicine, Shinshu University, Matsumoto, Japan
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Jiang N, Yan X, Zhou W, Zhang Q, Chen H, Zhang Y, Zhang X. NMR-Based Metabonomic Investigations into the Metabolic Profile of the Senescence-Accelerated Mouse. J Proteome Res 2008; 7:3678-86. [DOI: 10.1021/pr800439b] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ning Jiang
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China, and National Center of Biomedical Analysis, Beijing 100850, China
| | - Xianzhong Yan
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China, and National Center of Biomedical Analysis, Beijing 100850, China
| | - Wenxia Zhou
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China, and National Center of Biomedical Analysis, Beijing 100850, China
| | - Qi Zhang
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China, and National Center of Biomedical Analysis, Beijing 100850, China
| | - Hebing Chen
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China, and National Center of Biomedical Analysis, Beijing 100850, China
| | - Yongxiang Zhang
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China, and National Center of Biomedical Analysis, Beijing 100850, China
| | - Xuemin Zhang
- Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China, and National Center of Biomedical Analysis, Beijing 100850, China
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Korenaga T, Yan J, Sawashita J, Matsushita T, Naiki H, Hosokawa M, Mori M, Higuchi K, Fu X. Transmission of amyloidosis in offspring of mice with AApoAII amyloidosis. THE AMERICAN JOURNAL OF PATHOLOGY 2006; 168:898-906. [PMID: 16507905 PMCID: PMC1606535 DOI: 10.2353/ajpath.2006.050350] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/17/2005] [Indexed: 11/20/2022]
Abstract
Pre-existing amyloid fibrils can induce further polymerization of endogenous precursor proteins in vivo. Thus, transmission of amyloid fibrils (AApoAII) may induce a conformational change in endogenous apolipoprotein A-II and accelerate amyloid deposition in mouse senile amyloidosis. To characterize transmissibility, we examined amyloidosis in the offspring of AApoAII-injected mother mice that possessed the amyloidogenic Apoa2(c) allele of the apolipoprotein A-II gene. At 4 months of age, amyloid deposits were detected in the intestines of offspring born from and nursed by amyloid fibril-injected mothers, with intensity of deposition increasing thereafter. No amyloid deposits were detected in the offspring of noninjected control mothers. Accelerated amyloidosis was also observed in offspring born from mothers without injection but nursed by amyloid fibril-injected mothers. However, this was not observed in offspring born from amyloid fibril-injected mothers but nursed by control mothers. This fostering excluded vertical transmission through the placenta, suggesting the presence of factors that accelerate amyloidosis during the nursing period. In addition, milk obtained from amyloid fibril-injected mothers induced AApoAII amyloidosis in young mice, and transmission electron microscopy detected noodle-like amyloid fibrils in milk of amyloid fibril-injected mothers. These results provide important insight into the etiology and pathogenesis of amyloid diseases.
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Affiliation(s)
- Tatsumi Korenaga
- Department of Aging Biology, Institute on Aging and Adaptation, Shinshu University Graduate School of Medicine, Asahi 3-1-1, Matsumoto 390-8621, Japan
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Carter TA, Greenhall JA, Yoshida S, Fuchs S, Helton R, Swaroop A, Lockhart DJ, Barlow C. Mechanisms of aging in senescence-accelerated mice. Genome Biol 2005; 6:R48. [PMID: 15960800 PMCID: PMC1175968 DOI: 10.1186/gb-2005-6-6-r48] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2004] [Revised: 03/09/2005] [Accepted: 05/05/2005] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Progressive neurological dysfunction is a key aspect of human aging. Because of underlying differences in the aging of mice and humans, useful mouse models have been difficult to obtain and study. We have used gene-expression analysis and polymorphism screening to study molecular senescence of the retina and hippocampus in two rare inbred mouse models of accelerated neurological senescence (SAMP8 and SAMP10) that closely mimic human neurological aging, and in a related normal strain (SAMR1) and an unrelated normal strain (C57BL/6J). RESULTS The majority of age-related gene expression changes were strain-specific, with only a few common pathways found for normal and accelerated neurological aging. Polymorphism screening led to the identification of mutations that could have a direct impact on important disease processes, including a mutation in a fibroblast growth factor gene, Fgf1, and a mutation in and ectopic expression of the gene for the chemokine CCL19, which is involved in the inflammatory response. CONCLUSION We show that combining the study of inbred mouse strains with interesting traits and gene-expression profiling can lead to the discovery of genes important for complex phenotypes. Furthermore, full-genome polymorphism detection, sequencing and gene-expression profiling of inbred mouse strains with interesting phenotypic differences may provide unique insights into the molecular genetics of late-manifesting complex diseases.
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Affiliation(s)
- Todd A Carter
- The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | | | - Shigeo Yoshida
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
| | - Sebastian Fuchs
- The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Robert Helton
- The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Anand Swaroop
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI 48105, USA
- Department of Human Genetics, University of Michigan, Ann Arbor, MI 48105, USA
| | | | - Carrolee Barlow
- The Salk Institute for Biological Studies, La Jolla, CA 92037, USA
- Current address: BrainCells Inc., 10835 Road to the Cure, San Diego, CA 92121, USA
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Brouillette CG, Anantharamaiah GM, Engler JA, Borhani DW. Structural models of human apolipoprotein A-I: a critical analysis and review. BIOCHIMICA ET BIOPHYSICA ACTA 2001; 1531:4-46. [PMID: 11278170 DOI: 10.1016/s1388-1981(01)00081-6] [Citation(s) in RCA: 191] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Human apolipoprotein (apo) A-I has been the subject of intense investigation because of its well-documented anti-atherogenic properties. About 70% of the protein found in high density lipoprotein complexes is apo A-I, a molecule that contains a series of highly homologous amphipathic alpha-helices. A number of significant experimental observations have allowed increasing sophisticated structural models for both the lipid-bound and the lipid-free forms of the apo A-I molecule to be tested critically. It seems clear, for example, that interactions between amphipathic domains in apo A-I may be crucial to understanding the dynamic nature of the molecule and the pathways by which the lipid-free molecule binds to lipid, both in a discoidal and a spherical particle. The state of the art of these structural studies is discussed and placed in context with current models and concepts of the physiological role of apo A-I and high-density lipoprotein in atherosclerosis and lipid metabolism.
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Affiliation(s)
- C G Brouillette
- Center for Biophysical Sciences and Engineering, University of Alabama at Birmingham, AL 35294-0005, USA.
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Miyamoto H, Manabe N, Akiyama Y, Watanabe T, Sugimoto M, Sato E. A morphometric study of spermatogenesis in the testes of mice of a senescence accelerated strain. EXPERIENTIA 1994; 50:808-11. [PMID: 7925847 DOI: 10.1007/bf01956460] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The morphometric parameters of spermatogenic cells in a mouse strain prone to accelerated senescence (SAM-P), a novel murine model of spontaneously promoted aging, were compared with those of a SAM resistant strain (SAM-R) after birth until 40 weeks (mean life span of SAM-P). A mixture of gonocytes and spermatogonia were present in the testis in 1-week-old mice, and no gonocytes were observed in 2-week-old mice. At 6 weeks of age, the absolute number of spermatogonia in SAM-P was 27% greater than that in SAM-R, whereas the cell number in 40-week-old SAM-P was 17% less than in SAM-R. Primary spermatocytes were first observed in 3-week-old animals, and the cell numbers in SAM-P at 3, 5 and 6 weeks were 78%, 31% and 25%, respectively, greater than in SAM-R, whereas the cell number in SAM-P at 40 weeks was 30% less than SAM-R. Round spermatids were first observed in all SAM-P at 4 weeks old, but 20% of SAM-R had no spermatids and the rest had only a few. At 5 and 6 weeks old, the absolute numbers of round spermatids in SAM-P were 38% and 41%, respectively, greater than in SAM-R, whereas the cell number in 40-week-old SAM-P was about 34% less than SAM-R. These results indicate that testicular maturation begins at an earlier age in SAM-P than SAM-R. Furthermore, at the age of 40 weeks signs of testicular deterioration are evident in SAM-P mice only.
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Affiliation(s)
- H Miyamoto
- Department of Animal Science, Faculty of Agriculture, Kyoto University, Japan
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8
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Higuchi K, Kitado H, Kitagawa K, Kogishi K, Naiki H, Takeda T. Development of congenic strains of mice carrying amyloidogenic apolipoprotein A-II (Apoa2c). Apoa2c reduces the plasma level and the size of high density lipoprotein. FEBS Lett 1993; 317:207-10. [PMID: 8381093 DOI: 10.1016/0014-5793(93)81277-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A congenic strain of mice with amyloidogenic apolipoprotein A-II (Apoa2c) on the genetic background of the amyloidosis-resistant SAM-R/1 strain was produced by 12 generations of backcrossing. Genome mapping using endogenous murine leukemia proviral markers was done in the congenic strain, termed R1.P1-Apoa2c. We confirmed that only a small region surrounding the apoA-II gene on chromosome 1 was transferred from the genome of the donor SAM-P/1 strain. The level and particle size of plasma high density lipoprotein were decreased in R1.P1-Apoa2c mice compared to those in the progenitor SAM-R/1 mice. The function of apoA-II can be studied using this strain of mice.
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Affiliation(s)
- K Higuchi
- Department of Senescence Biology, Kyoto University, Japan
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Higuchi K, Kitagawa K, Kogishi K, Takeda T. Developmental and age-related changes in apolipoprotein B mRNA editing in mice. J Lipid Res 1992. [DOI: 10.1016/s0022-2275(20)41333-1] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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10
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Takeda T, Hosokawa M, Higuchi K. Senescence-accelerated mouse (SAM): a novel murine model of accelerated senescence. J Am Geriatr Soc 1991; 39:911-9. [PMID: 1885867 DOI: 10.1111/j.1532-5415.1991.tb04460.x] [Citation(s) in RCA: 251] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- T Takeda
- Department of Senescence Biology, Kyoto University, Japan
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11
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Abe H, Orita M. Age-related changes of erythrocyte membrane in the senescence-accelerated mouse. Mech Ageing Dev 1990; 51:215-22. [PMID: 2308393 DOI: 10.1016/0047-6374(90)90072-n] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Age-related changes in erythrocytes in senescence-accelerated mice (SAM-P) and control mice with normal aging characteristics (SAM-R) were examined. A significant decrease in the number of erythrocytes and significant increases in MCV and ATP levels were observed with aging in SAM-P, while no significant changes were seen in SAM-R. Erythrocytes in aged SAM-P were less fragile than those in aged SAM-R. The contents of cholesterol and phospholipids in erythrocyte membranes increased significantly in aged SAM-P, but the molar ratio of cholesterol/phospholipid decreased. The plasma cholesterol level of SAM-P decreased with aging. Changes such as those observed in SAM-P were not seen in SAM-R during the period of observation.
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Affiliation(s)
- H Abe
- Research Institute of Oriental Medicine, Kinki University, Osaka, Japan
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Higuchi K, Yonezu T, Tsunasawa S, Sakiyama F, Takeda T. The single proline-glutamine substitution at position 5 enhances the potency of amyloid fibril formation of murine apo A-II. FEBS Lett 1986; 207:23-7. [PMID: 3095143 DOI: 10.1016/0014-5793(86)80006-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The primary structure of murine apolipoprotein A-II (apo A-II) has been determined. Apo A-II consists of a single polypeptide chain of 78 amino acid residues, of which the amino-terminus is pyrrolidone carboxylic acid. Except for residues 5 and 38, the amino acid sequence is identical to that of murine senile amyloid protein (ASSAM), which has a common antigenicity with apo A-II. Substitution of glutamine (ASSAM) for proline (apo A-II) at position 5 is distinct and may possibly be related to murine senile amyloid-ogenesis.
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Higuchi K, Yonezu T, Kogishi K, Matsumura A, Takeshita S, Higuchi K, Kohno A, Matsushita M, Hosokawa M, Takeda T. Purification and characterization of a senile amyloid-related antigenic substance (apoSASSAM) from mouse serum. apoSASSAM is an apoA-II apolipoprotein of mouse high density lipoproteins. J Biol Chem 1986. [DOI: 10.1016/s0021-9258(18)67168-6] [Citation(s) in RCA: 76] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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