1
|
Ravender R, Roumelioti ME, Schmidt DW, Unruh ML, Argyropoulos C. Chronic Kidney Disease in the Older Adult Patient with Diabetes. J Clin Med 2024; 13:348. [PMID: 38256482 PMCID: PMC10816477 DOI: 10.3390/jcm13020348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/27/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
Diabetes mellitus (DM) and chronic kidney disease (CKD) are common in middle aged and older adult individuals. DM may accelerate the aging process, and the age-related declines in the estimated glomerular filtration rate (eGFR) can pose a challenge to diagnosing diabetic kidney disease (DKD) using standard diagnostic criteria especially with the absence of severe albuminuria among older adults. In the presence of CKD and DM, older adult patients may need multidisciplinary care due to susceptibility to various health issues, e.g., cognitive decline, auditory or visual impairment, various comorbidities, complex medical regimens, and increased sensitivity to medication adverse effects. As a result, it can be challenging to apply recent therapeutic advancements for the general population to older adults. We review the evidence that the benefits from these newer therapies apply equally to older and younger patients with CKD and diabetes type 2 and propose a comprehensive management. This framework will address nonpharmacological measures and pharmacological management with renin angiotensin system inhibitors (RASi), sodium glucose co-transporter 2 inhibitors (SGLT2i), non-steroidal mineralocorticoids receptor antagonists (MRAs), and glucagon like peptide 1 receptor agonists (GLP1-RAs).
Collapse
Affiliation(s)
| | | | | | | | - Christos Argyropoulos
- Division of Nephrology, Department of Internal Medicine, University of New Mexico School of Medicine, MSC 04-2785, Albuquerque, NM 87131, USA; (R.R.); (M.-E.R.); (D.W.S.); (M.L.U.)
| |
Collapse
|
2
|
Pippin JW, Kaverina N, Wang Y, Eng DG, Zeng Y, Tran U, Loretz CJ, Chang A, Akilesh S, Poudel C, Perry HS, O’Connor C, Vaughan JC, Bitzer M, Wessely O, Shankland SJ. Upregulated PD-1 signaling antagonizes glomerular health in aged kidneys and disease. J Clin Invest 2022; 132:e156250. [PMID: 35968783 PMCID: PMC9374384 DOI: 10.1172/jci156250] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 06/24/2022] [Indexed: 01/21/2023] Open
Abstract
With an aging population, kidney health becomes an important medical and socioeconomic factor. Kidney aging mechanisms are not well understood. We previously showed that podocytes isolated from aged mice exhibit increased expression of programmed cell death protein 1 (PD-1) surface receptor and its 2 ligands (PD-L1 and PD-L2). PDCD1 transcript increased with age in microdissected human glomeruli, which correlated with lower estimated glomerular filtration rate and higher segmental glomerulosclerosis and vascular arterial intima-to-lumen ratio. In vitro studies in podocytes demonstrated a critical role for PD-1 signaling in cell survival and in the induction of a senescence-associated secretory phenotype. To prove PD-1 signaling was critical to podocyte aging, aged mice were injected with anti-PD-1 antibody. Treatment significantly improved the aging phenotype in both kidney and liver. In the glomerulus, it increased the life span of podocytes, but not that of parietal epithelial, mesangial, or endothelial cells. Transcriptomic and immunohistochemistry studies demonstrated that anti-PD-1 antibody treatment improved the health span of podocytes. Administering the same anti-PD-1 antibody to young mice with experimental focal segmental glomerulosclerosis (FSGS) lowered proteinuria and improved podocyte number. These results suggest a critical contribution of increased PD-1 signaling toward both kidney and liver aging and in FSGS.
Collapse
Affiliation(s)
| | | | - Yuliang Wang
- Paul G. Allen School of Computer Science and Engineering, and
| | | | - Yuting Zeng
- Department of Chemistry, University of Washington, Seattle, Washington, USA
| | - Uyen Tran
- Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | | | - Anthony Chang
- Department of Pathology, University of Chicago, Chicago, Illinois, USA
| | - Shreeram Akilesh
- Department of Pathology, University of Washington, Seattle, Washington, USA
| | - Chetan Poudel
- Department of Chemistry, University of Washington, Seattle, Washington, USA
| | - Hannah S. Perry
- Department of Chemistry, University of Washington, Seattle, Washington, USA
| | | | - Joshua C. Vaughan
- Department of Chemistry, University of Washington, Seattle, Washington, USA
- Department of Physiology and Biophysics and
| | - Markus Bitzer
- Division of Nephrology, University of Michigan, Ann Arbor, Michigan, USA
| | - Oliver Wessely
- Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Stuart J. Shankland
- Division of Nephrology
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington, USA
| |
Collapse
|
3
|
Brown BJ, Boekell KL, Stotter BR, Talbot BE, Schlondorff JS. Gain-of-function, focal segmental glomerulosclerosis Trpc6 mutation minimally affects susceptibility to renal injury in several mouse models. PLoS One 2022; 17:e0272313. [PMID: 35913909 PMCID: PMC9342776 DOI: 10.1371/journal.pone.0272313] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 07/18/2022] [Indexed: 11/18/2022] Open
Abstract
Mutations in TRPC6 are a cause of autosomal dominant focal segmental glomerulosclerosis in humans. Many of these mutations are known to have a gain-of-function effect on the non-specific cation channel function of TRPC6. In vitro studies have suggested these mutations affect several signaling pathways, but in vivo studies have largely compared wild-type and Trpc6-deficient rodents. We developed mice carrying a gain-of-function Trpc6 mutation encoding an E896K amino acid change, corresponding to a known FSGS mutation in TRPC6. Homozygous mutant Trpc6 animals have no appreciable renal pathology, and do not develop albuminuria until very advanced age. The Trpc6E896K mutation does not impart susceptibility to PAN nephrosis. The animals show a slight delay in recovery from the albumin overload model. In response to chronic angiotensin II infusion, Trpc6E896K/E896K mice have slightly greater albuminuria initially compared to wild-type animals, an effect that is lost at later time points, and a statistically non-significant trend toward more glomerular injury. This phenotype is nearly opposite to that of Trpc6-deficient animals previously described. The Trpc6 mutation does not appreciably impact renal interstitial fibrosis in response to either angiotensin II infusion, or folate-induced kidney injury. TRPC6 protein and TRPC6-agonist induced calcium influx could not be detected in glomeruli. In sum, these findings suggest that a gain-of-function Trpc6 mutation confers only a mild susceptibility to glomerular injury in the mouse.
Collapse
Affiliation(s)
- Brittney J. Brown
- Division of Nephrology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Kimber L. Boekell
- Division of Nephrology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Brian R. Stotter
- Division of Nephrology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
- Division of Nephrology, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Brianna E. Talbot
- Division of Nephrology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Johannes S. Schlondorff
- Division of Nephrology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, United States of America
- * E-mail:
| |
Collapse
|
4
|
Bufi R, Korstanje R. The impact of genetic background on mouse models of kidney disease. Kidney Int 2022; 102:38-44. [DOI: 10.1016/j.kint.2022.03.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/07/2022] [Accepted: 03/14/2022] [Indexed: 12/24/2022]
|
5
|
Shankland SJ, Wang Y, Shaw AS, Vaughan JC, Pippin JW, Wessely O. Podocyte Aging: Why and How Getting Old Matters. J Am Soc Nephrol 2021; 32:2697-2713. [PMID: 34716239 PMCID: PMC8806106 DOI: 10.1681/asn.2021050614] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/26/2021] [Indexed: 02/04/2023] Open
Abstract
The effects of healthy aging on the kidney, and how these effects intersect with superimposed diseases, are highly relevant in the context of the population's increasing longevity. Age-associated changes to podocytes, which are terminally differentiated glomerular epithelial cells, adversely affect kidney health. This review discusses the molecular and cellular mechanisms underlying podocyte aging, how these mechanisms might be augmented by disease in the aged kidney, and approaches to mitigate progressive damage to podocytes. Furthermore, we address how biologic pathways such as those associated with cellular growth confound aging in humans and rodents.
Collapse
Affiliation(s)
- Stuart J. Shankland
- Division of Nephrology, University of Washington, Seattle, Washington
- Institute for Stem Cell & Regenerative Medicine, University of Washington, Seattle, Washington
| | - Yuliang Wang
- Institute for Stem Cell & Regenerative Medicine, University of Washington, Seattle, Washington
- Paul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, Washington
| | - Andrey S. Shaw
- Department of Research Biology, Genentech, South San Francisco, California
| | - Joshua C. Vaughan
- Department of Chemistry, University of Washington, Seattle, Washington
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington
| | - Jeffrey W. Pippin
- Division of Nephrology, University of Washington, Seattle, Washington
| | - Oliver Wessely
- Lerner Research Institute, Department of Cardiovascular & Metabolic Sciences, Cleveland Clinic Foundation, Cleveland, Ohio
| |
Collapse
|
6
|
de Groot T, Doty R, Damen L, Baumgarten R, Bressers S, Kraak J, Deen PMT, Korstanje R. Genetic background determines renal response to chronic lithium treatment in female mice. Physiol Genomics 2021; 53:406-415. [PMID: 34378418 DOI: 10.1152/physiolgenomics.00149.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background Chronic lithium treatment for bipolar disease causes mainly side effects in the kidney. A subset of lithium users develops nephrogenic diabetes insipidus (NDI), a urinary concentrating disorder, and chronic kidney disease (CKD). Age, lithium dose and duration of treatment are important risk factors, while genetic background might also play an important role. Methods In order to investigate the role of genetics, female mice of 29 different inbred strains were treated for one year with control or lithium chow and urine, blood and kidneys were analysed. Results Chronic lithium treatment increased urine production and/or reduced urine osmolality in 21 strains. Renal histology showed that lithium increased interstitial fibrosis and/or tubular atrophy in eight strains, while in none of the strains glomerular injury was induced. Interestingly, lithium did not elevate urinary albumin-creatinine ratio (ACR) in any strain, while eight strains even demonstrated a lowered ACR. The protective effect on ACR coincided with a similar decrease in urinary IgG levels, a marker of glomerular function, while the adverse effect of lithium on interstitial fibrosis/tubular atrophy coincided with a severe increase in urinary β2-microglobulin (B2M) levels, an indicator of proximal tubule damage. Conclusion Genetic background plays an important role in the development of lithium-induced NDI and chronic renal pathology in female mice. The strong correlation of renal pathology with urinary B2M levels indicates B2M as a promising biomarker for chronic renal damage induced by lithium.
Collapse
Affiliation(s)
- Theun de Groot
- The Jackson Laboratory, Bar Harbor, Maine, United States.,Radboud University Medical Center, Nijmegen, The Netherlands
| | - Rosalinda Doty
- The Jackson Laboratory, Bar Harbor, Maine, United States
| | - Lars Damen
- Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Steffi Bressers
- Radboud University Medical Center, Nijmegen, The Netherlands
| | - Joline Kraak
- The Jackson Laboratory, Bar Harbor, Maine, United States.,Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Ron Korstanje
- The Jackson Laboratory, Bar Harbor, Maine, United States
| |
Collapse
|
7
|
Chen CC, Chang ZY, Tsai FJ, Chen SY. Resveratrol Pretreatment Ameliorates Concanavalin A-Induced Advanced Renal Glomerulosclerosis in Aged Mice through Upregulation of Sirtuin 1-Mediated Klotho Expression. Int J Mol Sci 2020; 21:ijms21186766. [PMID: 32942691 PMCID: PMC7554923 DOI: 10.3390/ijms21186766] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 12/15/2022] Open
Abstract
Aging kidneys are characterized by an increased vulnerability to glomerulosclerosis and a measurable decline in renal function. Evidence suggests that renal and systemic klotho and sirtuin 1 (SIRT1) deficiencies worsen kidney damage induced by exogenous stresses. The aim of this study was to explore whether resveratrol would attenuate concanavalin A (Con A)-induced renal oxidative stress and advanced glomerulosclerosis in aged mice. Aged male C57BL/6 mice were treated orally with resveratrol (30 mg/kg) seven times (12 h intervals) prior to the administration of a single tail-vein injection of Con A (20 mg/kg). The plasma and urinary levels of kidney damage markers were evaluated. The kidney histopathology, renal parameters, and oxidative stress levels were measured. Furthermore, klotho was downregulated in mouse kidney mesangial cells that were pretreated with 25 µM resveratrol followed by 20 µg/mL Con A. The urinary albumin/creatinine ratio, blood urea nitrogen, kidney mesangial matrix expansion, tubulointerstitial fibrosis, and renal levels of α-smooth muscle actin, transforming growth factor beta, fibronectin, procollagen III propeptide, and collagen type I significantly increased in Con A-treated aged mice. Aged mice kidneys also showed markedly increased levels of 8-hydroxydeoxyguanosine (8-OH-dG) and reactive oxygen species (ROS), with reduced superoxide dismutase activity and levels of glutathione, klotho, and SIRT1 after Con A challenge. Furthermore, in kidney mesangial cells, klotho silencing abolished the effects of resveratrol on the Con A-mediated elevation of the indices of oxidative stress and the expression of glomerulosclerosis-related factors. These findings suggest that resveratrol protects against Con A-induced advanced glomerulosclerosis in aged mice, ameliorating renal oxidative stress via the SIRT1-mediated klotho expression.
Collapse
Affiliation(s)
- Chin-Chang Chen
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung 204, Taiwan; (C.-C.C.); (Z.-Y.C.)
- Department of Anatomy, School of Medicine, China Medical University, Taichung 404, Taiwan
| | - Zi-Yu Chang
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Keelung 204, Taiwan; (C.-C.C.); (Z.-Y.C.)
- Institute of Traditional Medicine, School of Medicine, National Yang-Ming University, Taipei 112, Taiwan
| | - Fuu-Jen Tsai
- School of Chinese Medicine, China Medical University, Taichung 404, Taiwan;
- Genetics Center, Medical Research, China Medical University Hospital, Taichung 404, Taiwan
- Department of Medical Genetics, China Medical University Hospital, Taichung 404, Taiwan
| | - Shih-Yin Chen
- School of Chinese Medicine, China Medical University, Taichung 404, Taiwan;
- Genetics Center, Medical Research, China Medical University Hospital, Taichung 404, Taiwan
- Correspondence:
| |
Collapse
|
8
|
de Groot T, Damen L, Kosse L, Alsady M, Doty R, Baumgarten R, Sheehan S, van der Vlag J, Korstanje R, Deen PMT. Lithium reduces blood glucose levels, but aggravates albuminuria in BTBR-ob/ob mice. PLoS One 2017; 12:e0189485. [PMID: 29244860 PMCID: PMC5731748 DOI: 10.1371/journal.pone.0189485] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 11/27/2017] [Indexed: 01/13/2023] Open
Abstract
Glycogen synthase kinase 3 (GSK3) plays an important role in the development of diabetes mellitus and renal injury. GSK3 inhibition increases glucose uptake in insulin-insensitive muscle and adipose tissue, while it reduces albuminuria and glomerulosclerosis in acute kidney injury. The effect of chronic GSK3 inhibition in diabetic nephropathy is not known. We tested the effect of lithium, the only clinical GSK3 inhibitor, on the development of diabetes mellitus and kidney injury in a mouse model of diabetic nephropathy. Twelve-week old female BTBR-ob/ob mice were treated for 12 weeks with 0, 10 and 40 mmol LiCl/kg after which the development of diabetes and diabetic nephropathy were analysed. In comparison to BTBR-WT mice, ob/ob mice demonstrated elevated bodyweight, increased blood glucose/insulin levels, urinary albumin and immunoglobulin G levels, glomerulosclerosis, reduced nephrin abundance and a damaged proximal tubule brush border. The lithium-10 and -40 diets did not affect body weight and resulted in blood lithium levels of respectively <0.25 mM and 0.48 mM. The Li-40 diet fully rescued the elevated non-fasting blood glucose levels. Importantly, glomerular filtration rate was not affected by lithium, while urine albumin and immunoglobulin G content were further elevated. While lithium did not worsen the glomerulosclerosis, proximal tubule function seemed affected by lithium, as urinary NGAL levels were significantly increased. These results demonstrate that lithium attenuates non-fasting blood glucose levels in diabetic mice, but aggravates urinary albumin and immunoglobulin G content, possibly resulting from proximal tubule dysfunction.
Collapse
Affiliation(s)
- Theun de Groot
- The Jackson Laboratory, Bar Harbor, Maine, United States of America
- Department of Physiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Lars Damen
- Department of Physiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Leanne Kosse
- The Jackson Laboratory, Bar Harbor, Maine, United States of America
- Department of Physiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Mohammad Alsady
- Department of Physiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Rosalinda Doty
- The Jackson Laboratory, Bar Harbor, Maine, United States of America
| | | | - Susan Sheehan
- The Jackson Laboratory, Bar Harbor, Maine, United States of America
| | - Johan van der Vlag
- Department of Nephrology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ron Korstanje
- The Jackson Laboratory, Bar Harbor, Maine, United States of America
| | - Peter M. T. Deen
- Department of Physiology, Radboud University Medical Center, Nijmegen, The Netherlands
| |
Collapse
|
9
|
Compound effects of aging and experimental FSGS on glomerular epithelial cells. Aging (Albany NY) 2017; 9:524-546. [PMID: 28222042 PMCID: PMC5361679 DOI: 10.18632/aging.101176] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 02/09/2017] [Indexed: 12/27/2022]
Abstract
Advanced age portends a poorer prognosis in FSGS. To understand the impact of age on glomerular podocytes and parietal epithelial cells (PECs), experimental FSGS was induced in 3m-old mice (20-year old human age) and 27m-old mice (78-year old human age) by abruptly depleting podocytes with a cytopathic anti-podocyte antibody. Despite similar binding of the disease-inducing antibody, podocyte density was lower in aged FSGS mice compared to young FSGS mice. Activated PEC density was higher in aged versus young FSGS mice, as was the percentage of total activated PECs. Additionally, the percentage of glomeruli containing PECs with evidence of phosphorylated ERK and EMT was higher in aged FSGS mice. Extracellular matrix, measured by collagen IV and silver staining, was higher in aged FSGS mice along Bowman's capsule. However, collagen IV accumulation in the glomerular tufts alone and in glomeruli with both tuft and Bowman's capsule accumulation were similar in young FSGS and aged FSGS mice. Thus, the major difference in collagen IV staining in FSGS was along Bowman's capsule in aged mice. The significant differences in podocytes, PECs and extracellular matrixaccumulation between young mice and old mice with FSGS might explain the differences in outcomes in FSGS based on age.
Collapse
|
10
|
Wang XX, Luo Y, Wang D, Adorini L, Pruzanski M, Dobrinskikh E, Levi M. A dual agonist of farnesoid X receptor (FXR) and the G protein-coupled receptor TGR5, INT-767, reverses age-related kidney disease in mice. J Biol Chem 2017; 292:12018-12024. [PMID: 28596381 DOI: 10.1074/jbc.c117.794982] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/07/2017] [Indexed: 11/06/2022] Open
Abstract
Even in healthy individuals, renal function gradually declines during aging. However, an observed variation in the rate of this decline has raised the possibility of slowing or delaying age-related kidney disease. One of the most successful interventional measures that slows down and delays age-related kidney disease is caloric restriction. We undertook the present studies to search for potential factors that are regulated by caloric restriction and act as caloric restriction mimetics. Based on our prior studies with the bile acid-activated nuclear hormone receptor farnesoid X receptor (FXR) and G protein-coupled membrane receptor TGR5 that demonstrated beneficial effects of FXR and TGR5 activation in the kidney, we reasoned that FXR and TGR5 could be excellent candidates. We therefore determined the effects of aging and caloric restriction on the expression of FXR and TGR5 in the kidney. We found that FXR and TGR5 expression levels are decreased in the aging kidney and that caloric restriction prevents these age-related decreases. Interestingly, in long-lived Ames dwarf mice, renal FXR and TGR5 expression levels were also increased. A 2-month treatment of 22-month-old C57BL/6J mice with the FXR-TGR5 dual agonist INT-767 induced caloric restriction-like effects and reversed age-related increases in proteinuria, podocyte injury, fibronectin accumulation, TGF-β expression, and, most notably, age-related impairments in mitochondrial biogenesis and mitochondrial function. Furthermore, in podocytes cultured in serum obtained from old mice, INT-767 prevented the increases in the proinflammatory markers TNF-α, toll-like receptor 2 (TLR2), and TLR4. In summary, our results indicate that FXR and TGR5 may play an important role in modulation of age-related kidney disease.
Collapse
Affiliation(s)
- Xiaoxin X Wang
- Division of Renal Diseases and Hypertension, Department of Medicine, Denver Veterans Affairs Medical Center and University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045
| | - Yuhuan Luo
- Division of Renal Diseases and Hypertension, Department of Medicine, Denver Veterans Affairs Medical Center and University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045
| | - Dong Wang
- Division of Renal Diseases and Hypertension, Department of Medicine, Denver Veterans Affairs Medical Center and University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045
| | | | | | - Evgenia Dobrinskikh
- Division of Renal Diseases and Hypertension, Department of Medicine, Denver Veterans Affairs Medical Center and University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045
| | - Moshe Levi
- Division of Renal Diseases and Hypertension, Department of Medicine, Denver Veterans Affairs Medical Center and University of Colorado Anschutz Medical Campus, Aurora, Colorado 80045.
| |
Collapse
|
11
|
Niedernhofer LJ, Kirkland JL, Ladiges W. Molecular pathology endpoints useful for aging studies. Ageing Res Rev 2017; 35:241-249. [PMID: 27721062 DOI: 10.1016/j.arr.2016.09.012] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 09/15/2016] [Accepted: 09/30/2016] [Indexed: 12/12/2022]
Abstract
The first clinical trial aimed at targeting fundamental processes of aging will soon be launched (TAME: Targeting Aging with Metformin). In its wake is a robust pipeline of therapeutic interventions that have been demonstrated to extend lifespan or healthspan of preclinical models, including rapalogs, antioxidants, anti-inflammatory agents, and senolytics. This ensures that if the TAME trial is successful, numerous additional clinical trials are apt to follow. But a significant impediment to these trials remains the question of what endpoints should be measured? The design of the TAME trial very cleverly skirts around this based on the fact that there are decades of data on metformin in humans, providing unequaled clarity of what endpoints are most likely to yield a positive outcome. But for a new chemical entity, knowing what endpoints to measure remains a formidable challenge. For economy's sake, and to achieve results in a reasonable time frame, surrogate markers of lifespan and healthy aging are desperately needed. This review provides a comprehensive analysis of molecular endpoints that are currently being used as indices of age-related phenomena (e.g., morbidity, frailty, mortality) and proposes an approach for validating and prioritizing these endpoints.
Collapse
Affiliation(s)
- L J Niedernhofer
- Department of Metabolism and Aging, The Scripps Research Institute, Jupiter, FL 33458, United States.
| | - J L Kirkland
- Robert and Arlene Kogod Center on Aging, Mayo Clinic, Rochester, MN 55905, United States
| | - W Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA 98195, United States
| |
Collapse
|
12
|
Jones FE, Bailey MA, Murray LS, Lu Y, McNeilly S, Schlötzer-Schrehardt U, Lennon R, Sado Y, Brownstein DG, Mullins JJ, Kadler KE, Van Agtmael T. ER stress and basement membrane defects combine to cause glomerular and tubular renal disease resulting from Col4a1 mutations in mice. Dis Model Mech 2016; 9:165-76. [PMID: 26839400 PMCID: PMC4770143 DOI: 10.1242/dmm.021741] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Collagen IV is a major component of basement membranes, and mutations in COL4A1, which encodes collagen IV alpha chain 1, cause a multisystemic disease encompassing cerebrovascular, eye and kidney defects. However, COL4A1 renal disease remains poorly characterized and its pathomolecular mechanisms are unknown. We show that Col4a1 mutations in mice cause hypotension and renal disease, including proteinuria and defects in Bowman's capsule and the glomerular basement membrane, indicating a role for Col4a1 in glomerular filtration. Impaired sodium reabsorption in the loop of Henle and distal nephron despite elevated aldosterone levels indicates that tubular defects contribute to the hypotension, highlighting a novel role for the basement membrane in vascular homeostasis by modulation of the tubular response to aldosterone. Col4a1 mutations also cause diabetes insipidus, whereby the tubular defects lead to polyuria associated with medullary atrophy and a subsequent reduction in the ability to upregulate aquaporin 2 and concentrate urine. Moreover, haematuria, haemorrhage and vascular basement membrane defects confirm an important vascular component. Interestingly, although structural and compositional basement membrane defects occurred in the glomerulus and Bowman's capsule, no tubular basement membrane defects were detected. By contrast, medullary atrophy was associated with chronic ER stress, providing evidence for cell-type-dependent molecular mechanisms of Col4a1 mutations. These data show that both basement membrane defects and ER stress contribute to Col4a1 renal disease, which has important implications for the development of treatment strategies for collagenopathies. Summary: Structural and compositional basement membrane defects and ER stress due to Col4a1 mutations cause glomerular and tubular kidney disease, and indicate cell-type-specific disease mechanisms for collagen diseases.
Collapse
Affiliation(s)
- Frances E Jones
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Matthew A Bailey
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - Lydia S Murray
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Yinhui Lu
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - Sarah McNeilly
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| | | | - Rachel Lennon
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - Yoshikazu Sado
- Division of Immunology, Shigei Medical Research Institute, Okayama 701-02, Japan
| | - David G Brownstein
- Division of Pathology, School of Molecular and Clinical Medicine, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - John J Mullins
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, EH16 4TJ, UK
| | - Karl E Kadler
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - Tom Van Agtmael
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, UK
| |
Collapse
|
13
|
Kõks S, Dogan S, Tuna BG, González-Navarro H, Potter P, Vandenbroucke RE. Mouse models of ageing and their relevance to disease. Mech Ageing Dev 2016; 160:41-53. [PMID: 27717883 DOI: 10.1016/j.mad.2016.10.001] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 09/26/2016] [Accepted: 10/03/2016] [Indexed: 12/28/2022]
Abstract
Ageing is a process that gradually increases the organism's vulnerability to death. It affects different biological pathways, and the underlying cellular mechanisms are complex. In view of the growing disease burden of ageing populations, increasing efforts are being invested in understanding the pathways and mechanisms of ageing. We review some mouse models commonly used in studies on ageing, highlight the advantages and disadvantages of the different strategies, and discuss their relevance to disease susceptibility. In addition to addressing the genetics and phenotypic analysis of mice, we discuss examples of models of delayed or accelerated ageing and their modulation by caloric restriction.
Collapse
Affiliation(s)
- Sulev Kõks
- University of Tartu, Tartu, Estonia and Estonian University of Life Sciences, Tartu, Estonia.
| | - Soner Dogan
- Yeditepe University, School of Medicine, Department of Medical Biology, Istanbul, Turkey.
| | - Bilge Guvenc Tuna
- Yeditepe University, School of Medicine, Department of Biophysics, Istanbul, Turkey.
| | - Herminia González-Navarro
- Institute of Health Research-INCLIVA, 46010 Valencia, Spain and CIBER de Diabetes y Enfermedades Metabólicas (CIBERDEM), 28029 Madrid, Spain.
| | - Paul Potter
- Mammalian Genetics Unit, MRC Harwell, Oxfordshire, UK.
| | - Roosmarijn E Vandenbroucke
- Inflammation Research Center, VIB, Ghent, Belgium, Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
| |
Collapse
|
14
|
Zeng Y, Wang PH, Zhang M, Du JR. Aging-related renal injury and inflammation are associated with downregulation of Klotho and induction of RIG-I/NF-κB signaling pathway in senescence-accelerated mice. Aging Clin Exp Res 2016; 28:69-76. [PMID: 25986237 DOI: 10.1007/s40520-015-0371-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Accepted: 05/05/2015] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND AIMS The predominant distribution of the antiaging Klotho protein in both the kidneys and brain may point to its essential role in protecting against dysfunction of the kidney-brain axis during the aging process. Our previous study showed that the downregulation of Klotho was involved in aging-related cognitive impairment in aged senescence-accelerated mouse prone-8 (SAMP8) mice. The present study investigated the potential role of Klotho in aging-associated inflammation and renal injury. METHODS Age- and gender-matched groups of SAMP8 mice and their corresponding normal control senescence-accelerated mouse resistant-1 (SAMR1) were used to investigate the potential role of Klotho in aging-associated inflammation and renal injury. RESULTS Compared with aged SAMR1 controls, early-stage chronic kidney disease (CKD), which is associated with an increase in the urinary albumin-to-creatinine ratio, inflammatory cell infiltration, glomerulosclerosis, and tubulointerstitial fibrosis, was observed in aged SAMP8 mice. Furthermore, the aging-related loss of Klotho-induced activation of the retinoic acid-inducible gene 1/nuclear factor-κB (RIG-I/NF-κB) signaling pathway and subsequent production of the proinflammatory mediators tumor necrosis factor α, interleukin-6, and inducible nitric oxide synthase in the kidneys of aged SAMP8 mice compared with SAMR1 controls. CONCLUSIONS The present results suggest that aging-related inflammation and the development of early-stage CKD are likely associated with the downregulation of Klotho and induction of the RIG-I/NF-κB signaling pathway in 12-month-old SAMP8 mice. Moreover, aged SAMP8 mice with cognitive deficits and renal damage may be a potential mouse model for investigating the kidney-brain axis in the aging process.
Collapse
Affiliation(s)
- Yi Zeng
- Department of Pharmacology, Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Ping-Han Wang
- Department of Pharmacology, Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Mao Zhang
- Department of Pharmacology, Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Jun-Rong Du
- Department of Pharmacology, Key Laboratory of Drug Targeting and Drug Delivery Systems, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
| |
Collapse
|
15
|
Abstract
Several studies show evidence for the genetic basis of renal disease, which renders some individuals more prone than others to accelerated renal aging. Studying the genetics of renal aging can help us to identify genes involved in this process and to unravel the underlying pathways. First, this opinion article will give an overview of the phenotypes that can be observed in age-related kidney disease. Accurate phenotyping is essential in performing genetic analysis. For kidney aging, this could include both functional and structural changes. Subsequently, this article reviews the studies that report on candidate genes associated with renal aging in humans and mice. Several loci or candidate genes have been found associated with kidney disease, but identification of the specific genetic variants involved has proven to be difficult. CUBN, UMOD, and SHROOM3 were identified by human GWAS as being associated with albuminuria, kidney function, and chronic kidney disease (CKD). These are promising examples of genes that could be involved in renal aging, and were further mechanistically evaluated in animal models. Eventually, we will provide approaches for performing genetic analysis. We should leverage the power of mouse models, as testing in humans is limited. Mouse and other animal models can be used to explain the underlying biological mechanisms of genes and loci identified by human GWAS. Furthermore, mouse models can be used to identify genetic variants associated with age-associated histological changes, of which Far2, Wisp2, and Esrrg are examples. A new outbred mouse population with high genetic diversity will facilitate the identification of genes associated with renal aging by enabling high-resolution genetic mapping while also allowing the control of environmental factors, and by enabling access to renal tissues at specific time points for histology, proteomics, and gene expression.
Collapse
Affiliation(s)
- Gerda A. Noordmans
- Department of Pathology and Medical Biology University of Groningen University Medical Center Groningen Groningen the Netherlands
| | - Jan‐Luuk Hillebrands
- Department of Pathology and Medical Biology University of Groningen University Medical Center Groningen Groningen the Netherlands
| | - Harry Goor
- Department of Pathology and Medical Biology University of Groningen University Medical Center Groningen Groningen the Netherlands
| | | |
Collapse
|
16
|
Bogue MA, Peters LL, Paigen B, Korstanje R, Yuan R, Ackert-Bicknell C, Grubb SC, Churchill GA, Chesler EJ. Accessing Data Resources in the Mouse Phenome Database for Genetic Analysis of Murine Life Span and Health Span. J Gerontol A Biol Sci Med Sci 2014; 71:170-7. [PMID: 25533306 PMCID: PMC4707687 DOI: 10.1093/gerona/glu223] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 10/28/2014] [Indexed: 01/18/2023] Open
Abstract
Understanding the source of genetic variation in aging and using this variation to define the molecular mechanisms of healthy aging require deep and broad quantification of a host of physiological, morphological, and behavioral endpoints. The murine model is a powerful system in which to understand the relations across age-related phenotypes and to identify research models with variation in life span and health span. The Jackson Laboratory Nathan Shock Center of Excellence in the Basic Biology of Aging has performed broad characterization of aging in genetically diverse laboratory mice and has placed these data, along with data from several other major aging initiatives, into the interactive Mouse Phenome Database. The data may be accessed and analyzed by researchers interested in finding mouse models for specific aging processes, age-related health and disease states, and for genetic analysis of aging variation and trait covariation. We expect that by placing these data in the hands of the aging community that there will be (a) accelerated genetic analyses of aging processes, (b) discovery of genetic loci regulating life span, (c) identification of compelling correlations between life span and susceptibility for age-related disorders, and (d) discovery of concordant genomic loci influencing life span and aging phenotypes between mouse and humans.
Collapse
Affiliation(s)
- Molly A Bogue
- The Jackson Laboratory Nathan Shock Center of Excellence in the Basic Biology of Aging, The Jackson Laboratory, Bar Harbor, Maine.
| | - Luanne L Peters
- The Jackson Laboratory Nathan Shock Center of Excellence in the Basic Biology of Aging, The Jackson Laboratory, Bar Harbor, Maine
| | - Beverly Paigen
- The Jackson Laboratory Nathan Shock Center of Excellence in the Basic Biology of Aging, The Jackson Laboratory, Bar Harbor, Maine
| | - Ron Korstanje
- The Jackson Laboratory Nathan Shock Center of Excellence in the Basic Biology of Aging, The Jackson Laboratory, Bar Harbor, Maine
| | - Rong Yuan
- Southern Illinois University School of Medicine, Springfield
| | - Cheryl Ackert-Bicknell
- The Jackson Laboratory Nathan Shock Center of Excellence in the Basic Biology of Aging, The Jackson Laboratory, Bar Harbor, Maine
| | - Stephen C Grubb
- The Jackson Laboratory Nathan Shock Center of Excellence in the Basic Biology of Aging, The Jackson Laboratory, Bar Harbor, Maine
| | - Gary A Churchill
- The Jackson Laboratory Nathan Shock Center of Excellence in the Basic Biology of Aging, The Jackson Laboratory, Bar Harbor, Maine
| | - Elissa J Chesler
- The Jackson Laboratory Nathan Shock Center of Excellence in the Basic Biology of Aging, The Jackson Laboratory, Bar Harbor, Maine
| |
Collapse
|
17
|
Noordmans GA, Huang Y, Savage H, van Dijk MCRF, Schaart G, van den Bergh Weerman MA, Heeringa P, Hillebrands JL, Korstanje R, van Goor H. Genetic analysis of intracapillary glomerular lipoprotein deposits in aging mice. PLoS One 2014; 9:e111308. [PMID: 25353171 PMCID: PMC4213026 DOI: 10.1371/journal.pone.0111308] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 09/30/2014] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Renal aging is characterized by functional and structural changes like decreased glomerular filtration rate, and glomerular, tubular and interstitial damage. To gain insight in pathways involved in renal aging, we studied aged mouse strains and used genetic analysis to identify genes associated with aging phenotypes. METHODS Upon morphological screening in kidneys from 20-month-old mice from 26 inbred strains we noted intracapillary PAS-positive deposits. The severity of these deposits was quantified by scoring of a total of 50 glomeruli per section (grade 0-4). Electron microscopy and immunohistochemical staining for apoE, apoB, apoA-IV and perilipin-2 was performed to further characterize the lesions. To identify loci associated with these PAS-positive intracapillary glomerular deposits, we performed haplotype association mapping. RESULTS Six out of 26 mouse strains showed glomerular PAS-positive deposits. The severity of these deposits varied: NOD(0.97), NZW(0.41), NON(0.30), B10(0.21), C3 H(0.9) and C57BR(0.7). The intracapillary deposits were strongly positive for apoE and weakly positive for apoB and apoA-IV. Haplotype association mapping showed a strong association with a 30-Kb haplotype block on Chr 1 within the Esrrg gene. We investigated 1 Mb on each site of this region, which includes the genes Spata17, Gpatch2, Esrrg, Ush2a and Kctd3. CONCLUSIONS By analyzing 26 aged mouse strains we found that some strains developed an intracapillary PAS and apoE-positive lesion and identified a small haplotype block on Chr 1 within the Esrrg gene to be associated with these lipoprotein deposits. The region spanning this haplotype block contains the genes Spata17, Gpatch2, Esrrg, Ush2a and Kctd3, which are all highly expressed in the kidney. Esrrg might be involved in the evolvement of these glomerular deposits by influencing lipid metabolism and possibly immune reponses.
Collapse
Affiliation(s)
- Gerda A. Noordmans
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- * E-mail:
| | - Yuan Huang
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Holly Savage
- The Jackson Laboratory, Bar Harbor, Maine, United States of America
| | - Marcory C. R. F. van Dijk
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Gert Schaart
- Department of Human Movement Sciences, NUTRIM, Maastricht University Medical Centre, Maastricht, The Netherlands
| | | | - Peter Heeringa
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan-Luuk Hillebrands
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Ron Korstanje
- The Jackson Laboratory, Bar Harbor, Maine, United States of America
| | - Harry van Goor
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| |
Collapse
|
18
|
Zhou Y, Harrison DE, Love-Myers K, Chen Y, Grider A, Wickwire K, Burgess JR, Stochelski MA, Pazdro R. Genetic analysis of tissue glutathione concentrations and redox balance. Free Radic Biol Med 2014; 71:157-164. [PMID: 24613380 PMCID: PMC4043295 DOI: 10.1016/j.freeradbiomed.2014.02.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 02/19/2014] [Accepted: 02/27/2014] [Indexed: 12/12/2022]
Abstract
Glutathione redox balance-defined as the ratio GSH/GSSG-is a critical regulator of cellular redox state, and declines in this ratio are closely associated with oxidative stress and disease. However, little is known about the impact of genetic variation on this trait. Previous mouse studies suggest that tissue GSH/GSSG is regulated by genetic background and is therefore heritable. In this study, we measured glutathione concentrations and GSH/GSSG in liver and kidney of 30 genetically diverse inbred mouse strains. Genetic background caused an approximately threefold difference in hepatic and renal GSH/GSSG between the most disparate strains. Haplotype association mapping determined the loci associated with hepatic and renal glutathione phenotypes. We narrowed the number of significant loci by focusing on those located within protein-coding genes, which we now consider to be candidate genes for glutathione homeostasis. No candidate genes were associated with both hepatic and renal GSH/GSSG, suggesting that genetic regulation of GSH/GSSG occurs predominantly in a tissue-specific manner. This is the first quantitative trait locus study to examine the genetic regulation of glutathione concentrations and redox balance in mammals. We identified novel candidate genes that have the potential to redefine our knowledge of redox biochemistry and its regulation and inform future therapeutic applications.
Collapse
Affiliation(s)
- Yang Zhou
- Department of Foods and Nutrition and University of Georgia, Athens, GA 30602, USA
| | | | | | - Yi Chen
- Department of Statistics, University of Georgia, Athens, GA 30602, USA
| | - Arthur Grider
- Department of Foods and Nutrition and University of Georgia, Athens, GA 30602, USA
| | - Kathie Wickwire
- Department of Foods and Nutrition and University of Georgia, Athens, GA 30602, USA
| | - John R Burgess
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907, USA
| | - Mateusz A Stochelski
- Department of Nutrition Science, Purdue University, West Lafayette, IN 47907, USA
| | - Robert Pazdro
- Department of Foods and Nutrition and University of Georgia, Athens, GA 30602, USA; The Jackson Laboratory, Bar Harbor, ME 04609, USA.
| |
Collapse
|
19
|
Huang Y, Caputo CR, Noordmans GA, Yazdani S, Monteiro LH, van den Born J, van Goor H, Heeringa P, Korstanje R, Hillebrands JL. Identification of novel genes associated with renal tertiary lymphoid organ formation in aging mice. PLoS One 2014; 9:e91850. [PMID: 24637805 PMCID: PMC3956762 DOI: 10.1371/journal.pone.0091850] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Accepted: 02/17/2014] [Indexed: 02/07/2023] Open
Abstract
A hallmark of aging-related organ deterioration is a dysregulated immune response characterized by pathologic leukocyte infiltration of affected tissues. Mechanisms and genes involved are as yet unknown. To identify genes associated with aging-related renal infiltration, we analyzed kidneys from aged mice (≥20 strains) for infiltrating leukocytes followed by Haplotype Association Mapping (HAM) analysis. Immunohistochemistry revealed CD45+ cell clusters (predominantly T and B cells) in perivascular areas coinciding with PNAd+ high endothelial venules and podoplanin+ lymph vessels indicative of tertiary lymphoid organs. Cumulative cluster size increased with age (analyzed at 6, 12 and 20 months). Based on the presence or absence of clusters in male and female mice at 20 months, HAM analysis revealed significant associations with loci on Chr1, Chr2, Chr8 and Chr14 in male mice, and with loci on Chr4, Chr7, Chr13 and Chr14 in female mice. Wisp2 (Chr2) showed the strongest association (P = 5.00×10−137) in male mice; Ctnnbip1 (P = 6.42×10−267) and Tnfrsf8 (P = 5.42×10−245) (both on Chr4) showed the strongest association in female mice. Both Wisp2 and Ctnnbip1 are part of the Wnt-signaling pathway and the encoded proteins were expressed within the tertiary lymphoid organs. In conclusion, this study revealed differential lymphocytic infiltration and tertiary lymphoid organ formation in aged mouse kidneys across different inbred mouse strains. HAM analysis identified candidate genes involved in the Wnt-signaling pathway that may be causally linked to tertiary lymphoid organ formation.
Collapse
Affiliation(s)
- Yuan Huang
- Department of Pathology & Medical Biology - Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Department of Pathology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | | | - Gerda A. Noordmans
- Department of Pathology & Medical Biology - Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Saleh Yazdani
- Department of Internal Medicine - Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Luiz Henrique Monteiro
- Department of Pathology & Medical Biology - Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jaap van den Born
- Department of Internal Medicine - Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Harry van Goor
- Department of Pathology & Medical Biology - Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Peter Heeringa
- Department of Pathology & Medical Biology - Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Ron Korstanje
- The Jackson Laboratory, Bar Harbor, Maine, United States of America
| | - Jan-Luuk Hillebrands
- Department of Pathology & Medical Biology - Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- * E-mail:
| |
Collapse
|
20
|
Mocchegiani E, Costarelli L, Giacconi R, Malavolta M, Basso A, Piacenza F, Ostan R, Cevenini E, Gonos ES, Monti D. Micronutrient-gene interactions related to inflammatory/immune response and antioxidant activity in ageing and inflammation. A systematic review. Mech Ageing Dev 2014; 136-137:29-49. [PMID: 24388876 DOI: 10.1016/j.mad.2013.12.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 12/06/2013] [Accepted: 12/20/2013] [Indexed: 02/07/2023]
Abstract
Recent longitudinal studies in dietary daily intake in human centenarians have shown that a satisfactory content of some micronutrients within the cells maintain several immune functions, a low grade of inflammation and preserve antioxidant activity. Micronutrients (zinc, copper, selenium) play a pivotal role in maintaining and reinforcing the performances of the immune and antioxidant systems as well as in affecting the complex network of the genes (nutrigenomic) with anti- and pro-inflammatory tasks. Genes of pro- and anti-inflammatory cytokines and some key regulators of trace elements homeostasis, such as Metallothioneins (MT), are involved in the susceptibility to major geriatric disease/disorders. Moreover, the genetic inter-individual variability may affect the nutrients' absorption (nutrigenetic) with altered effects on inflammatory/immune response and antioxidant activity. The interaction between genetic factors and micronutrients (nutrigenomic and nutrigenetic approaches) may influence ageing and longevity because the micronutrients may become also toxic. This review reports the micronutrient-gene interactions in ageing and their impact on the healthy state with a focus on the method of protein-metal speciation analysis. The association between micronutrient-gene interactions and the protein-metal speciation analysis can give a complete picture for a personalized nutrient supplementation or chelation in order to reach healthy ageing and longevity.
Collapse
Affiliation(s)
- Eugenio Mocchegiani
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy.
| | - Laura Costarelli
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Robertina Giacconi
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Marco Malavolta
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Andrea Basso
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Francesco Piacenza
- Translation Center of Research in Nutrition and Ageing, Scientific and Technological Pole, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121 Ancona, Italy
| | - Rita Ostan
- Department of Experimental Diagnostic and Specialty Medicine (DIMES) and Interdepartmental Centre "L. Galvani" (CIG), University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - Elisa Cevenini
- Department of Experimental Diagnostic and Specialty Medicine (DIMES) and Interdepartmental Centre "L. Galvani" (CIG), University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - Efstathios S Gonos
- National Hellenic Research Foundation, Institute of Biology, Medicinal Chemistry and Biotechnology, 48 Vas. Constantinou Ave., Athens 11635, Greece
| | - Daniela Monti
- Department of Clinical and Experimental Biomedical Sciences, University of Florence, Viale Morgagni, 50, 50134 Florence, Italy
| |
Collapse
|
21
|
Noordmans GA, Caputo CR, Huang Y, Sheehan SM, Bulthuis M, Heeringa P, Hillebrands JL, van Goor H, Korstanje R. Genetic analysis of mesangial matrix expansion in aging mice and identification of Far2 as a candidate gene. J Am Soc Nephrol 2013; 24:1995-2001. [PMID: 24009241 DOI: 10.1681/asn.2012080838] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Aging of the kidney is associated with renal damage, in particular mesangial matrix expansion (MME). Identifying the genes involved in this process will help to unravel the mechanisms of aging and aid in the design of novel therapeutic modalities aimed at prevention and regression. In this study, structural changes in glomeruli of 24 inbred mouse strains were characterized in male mice at 6, 12, and 20 months of age. Haplotype association mapping was used to determine genetic loci associated with the presence of MME at 20 months. This analysis identified a significant association with a 200-kb haplotype block on chromosome 6 containing Far2. Sequencing revealed that mouse strains with MME contain a 9-bp sequence in the 5' untranslated region of Far2 that is absent in most of the strains without MME. Real-time PCR showed a two-fold increase in the expression of Far2 in the kidneys of strains with the insert, and subsequent experiments performed in vitro with luciferase reporter vectors showed that this sequence difference causes differential expression of Far2. Overexpression of Far2 in a mouse mesangial cell line induced upregulation of platelet activating factor and the fibrotic marker TGF-β. This upregulation of MME-promoting factors may result, in part, from the FAR2-catalyzed reduction of fatty acyl-coenzyme A to fatty alcohols, which are possible precursors of platelet activating factor. Overall, these data suggest the identification of a novel pathway involved in renal aging that may yield therapeutic targets for reducing MME.
Collapse
Affiliation(s)
- Gerda A Noordmans
- Department of Pathology and Medical Biology, University of Groningen and University Medical Center, Groningen, The Netherlands
| | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Li M, Wang X, Aa J, Qin W, Zha W, Ge Y, Liu L, Zheng T, Cao B, Shi J, Zhao C, Wang X, Yu X, Wang G, Liu Z. GC/TOFMS analysis of metabolites in serum and urine reveals metabolic perturbation of TCA cycle in db/db mice involved in diabetic nephropathy. Am J Physiol Renal Physiol 2013; 304:F1317-24. [DOI: 10.1152/ajprenal.00536.2012] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Early diagnosis of diabetic nephropathy (DN) is difficult although it is of crucial importance to prevent its development. To probe potential markers and the underlying mechanism of DN, an animal model of DN, the db/db mice, was used and serum and urine metabolites were profiled using gas chromatography/time-of-flight mass spectrometry. Metabolic patterns were evaluated based on serum and urine data. Principal component analysis of the data revealed an obvious metabonomic difference between db/db mice and controls, and db/db mice showed distinctly different metabolic patterns during the progression from diabetes to early, medium, and later DN. The identified metabolites discriminating between db/db mice and controls suggested that db/db mice have perturbations in the tricarboxylic acid cycle (TCA, citrate, malate, succinate, and aconitate), lipid metabolism, glycolysis, and amino acid turnover. The db/db mice were characterized by acidic urine, high TCA intermediates in serum at week 6 and a sharp decline thereafter, and gradual elevation of free fatty acids in the serum. The sharp drop of serum TCA intermediates from week 6 to 8 indicated the downregulated glycolysis and insulin resistance. However, urinary TCA intermediates did not decrease in parallel with those in the serum from week 6 to 10, and an increased portion of TCA intermediates in the serum was excreted into the urine at 8, 10, and 12 wk than at 6 wk, indicating kidney dysfunction occurred. The relative abundances of TCA intermediates in urine relative to those in serum were suggested as an index of renal damage.
Collapse
Affiliation(s)
- Mengjie Li
- Laboratory of Metabolomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; and
| | - Xufang Wang
- Research Institute of Nephrology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Jiye Aa
- Laboratory of Metabolomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; and
| | - Weisong Qin
- Research Institute of Nephrology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Weibin Zha
- Laboratory of Metabolomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; and
| | - Yongchun Ge
- Research Institute of Nephrology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Linsheng Liu
- Laboratory of Metabolomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; and
| | - Tian Zheng
- Laboratory of Metabolomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; and
| | - Bei Cao
- Laboratory of Metabolomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; and
| | - Jian Shi
- Laboratory of Metabolomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; and
| | - Chunyan Zhao
- Laboratory of Metabolomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; and
| | - Xinwen Wang
- Laboratory of Metabolomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; and
| | - Xiaoyi Yu
- Laboratory of Metabolomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; and
| | - Guangji Wang
- Laboratory of Metabolomics, Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China; and
| | - Zhihong Liu
- Research Institute of Nephrology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| |
Collapse
|
23
|
Abstract
Normally, the glomerular filtration barrier almost completely excludes circulating albumin from entering the urine. Genetic variation and both pre- and postnatal environmental factors may affect albuminuria in humans. Here we determine whether glomerular gene expression in mouse strains with naturally occurring variations in albuminuria would allow identification of proteins deregulated in relatively 'leaky' glomeruli. Albuminuria increased in female B6 to male B6 to female FVB/N to male FVB/N mice, whereas the number of glomeruli/kidney was the exact opposite. Testosterone administration led to increased albuminuria in female B6 but not female FVB/N mice. A common set of 39 genes, many expressed in podocytes, were significantly differentially expressed in each of the four comparisons: male versus female B6 mice, male versus female FVB/N mice, male FVB/N versus male B6 mice, and female FVB/N versus female B6 mice. The transcripts encoded proteins involved in oxidation/reduction reactions, ion transport, and enzymes involved in detoxification. These proteins may represent novel biomarkers and even therapeutic targets for early kidney and cardiovascular disease.
Collapse
|
24
|
Abstract
The treatment of diabetic nephropathy in elderly individuals is based primarily on data from younger age groups. However, the assumption that the same treatment approaches for the younger age groups can be uniformly applied to elderly individuals is likely to be incorrect. The cornerstones of aggressive therapy for diabetic kidney disease in general may have drawbacks in elderly patients. For example, significant risks of tight glycemic control have emerged in recent studies. Excessive decrease of blood pressure to existing targets may be unsafe in elderly individuals. Limited data do indicate that renin-angiotensin blockade may be as effective and no riskier than in middle-aged diabetic kidney patients. Until further studies are carried out, it is prudent to treat the elderly patient with similar approaches as in younger patients, but tempered by the issues reviewed in this article. There is a growing need for the development of clinical guidelines to retool CKD management in the elderly diabetic population using both current and emerging therapies.
Collapse
|
25
|
Leduc MS, Savage HS, Stearns TM, Cario CL, Walsh KA, Paigen B, Berndt A. A major X-linked locus affects kidney function in mice. Mol Genet Genomics 2012; 287:845-54. [PMID: 23011808 DOI: 10.1007/s00438-012-0720-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 09/04/2012] [Indexed: 11/29/2022]
Abstract
Chronic kidney disease is a common disease with increasing prevalence in the western population. One common reason for chronic kidney failure is diabetic nephropathy. Diabetic nephropathy and hyperglycemia are characteristics of the mouse inbred strain KK/HlJ, which is predominantly used as a model for metabolic syndrome due to its inherited glucose intolerance and insulin resistance. We used KK/HlJ, an albuminuria-sensitive strain, and C57BL/6J, an albuminuria-resistant strain, to perform a quantitative trait locus (QTL) cross to identify the genetic basis for chronic kidney failure. Albumin-creatinine ratio (ACR) was measured in 130 F2 male offspring. One significant QTL was identified on chromosome (Chr) X and four suggestive QTL were found on Chrs 6, 7, 12, and 13. Narrowing of the QTL region was focused on the X-linked QTL and performed by incorporating genotype and expression analyses for genes located in the region. From the 485 genes identified in the X-linked QTL region, a few candidate genes were identified using a combination of bioinformatic evidence based on genomic comparison of the parental strains and known function in urine homeostasis. Finally, this study demonstrates the significance of the X chromosome in the genetic determination of albuminuria.
Collapse
Affiliation(s)
- Magalie S Leduc
- Texas Biomedical Research Institute, 7620 NW Loop 410, San Antonio, TX, USA.
| | | | | | | | | | | | | |
Collapse
|
26
|
Micronutrient (Zn, Cu, Fe)-gene interactions in ageing and inflammatory age-related diseases: implications for treatments. Ageing Res Rev 2012; 11:297-319. [PMID: 22322094 DOI: 10.1016/j.arr.2012.01.004] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 01/20/2012] [Accepted: 01/23/2012] [Indexed: 02/07/2023]
Abstract
In ageing, alterations in inflammatory/immune response and antioxidant capacity lead to increased susceptibility to diseases and loss of mobility and agility. Various essential micronutrients in the diet are involved in age-altered biological functions. Micronutrients (zinc, copper, iron) play a pivotal role either in maintaining and reinforcing the immune and antioxidant performances or in affecting the complex network of genes (nutrigenomic approach) involved in encoding proteins for a correct inflammatory/immune response. By the other side, the genetic inter-individual variability may affect the absorption and uptake of the micronutrients (nutrigenetic approach) with subsequent altered effects on inflammatory/immune response and antioxidant activity. Therefore, the individual micronutrient-gene interactions are fundamental to achieve healthy ageing. In this review, we report and discuss the role of micronutrients (Zn, Cu, Fe)-gene interactions in relation to the inflammatory status and the possibility of a supplement in the event of a micronutrient deficiency or chelation in presence of micronutrient overload in relation to specific polymorphisms of inflammatory proteins or proteins related of the delivery of the micronutriemts to various organs and tissues. In this last context, we report the protein-metal speciation analysis in order to have, coupled with micronutrient-gene interactions, a more complete picture of the individual need in micronutrient supplementation or chelation to achieve healthy ageing and longevity.
Collapse
|
27
|
Turner CF, Pan H, Silk GW, Ardini MA, Bakalov V, Bryant S, Cantor S, Chang KY, DeLatte M, Eggers P, Ganapathi L, Lakshmikanthan S, Levy J, Li S, Pratt J, Pugh N, Qin Y, Rasooly R, Ray H, Richardson JE, Riley AF, Rogers SM, Scheper C, Tan S, White S, Cooley PC. The NIDDK Central Repository at 8 years--ambition, revision, use and impact. Database (Oxford) 2011; 2011:bar043. [PMID: 21959867 PMCID: PMC3243603 DOI: 10.1093/database/bar043] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 08/05/2011] [Accepted: 08/24/2011] [Indexed: 11/25/2022]
Abstract
The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Central Repository makes data and biospecimens from NIDDK-funded research available to the broader scientific community. It thereby facilitates: the testing of new hypotheses without new data or biospecimen collection; pooling data across several studies to increase statistical power; and informative genetic analyses using the Repository's well-curated phenotypic data. This article describes the initial database plan for the Repository and its revision using a simpler model. Among the lessons learned were the trade-offs between the complexity of a database design and the costs in time and money of implementation; the importance of integrating consent documents into the basic design; the crucial need for linkage files that associate biospecimen IDs with the masked subject IDs used in deposited data sets; and the importance of standardized procedures to test the integrity data sets prior to distribution. The Repository is currently tracking 111 ongoing NIDDK-funded studies many of which include genotype data, and it houses over 5 million biospecimens of more than 25 types including serum, plasma, stool, urine, DNA, red blood cells, buffy coat and tissue. Repository resources have supported a range of biochemical, clinical, statistical and genetic research (188 external requests for clinical data and 31 for biospecimens have been approved or are pending). Genetic research has included GWAS, validation studies, development of methods to improve statistical power of GWAS and testing of new statistical methods for genetic research. We anticipate that the future impact of the Repository's resources on biomedical research will be enhanced by (i) cross-listing of Repository biospecimens in additional searchable databases and biobank catalogs; (ii) ongoing deployment of new applications for querying the contents of the Repository; and (iii) increased harmonization of procedures, data collection strategies, questionnaires etc. across both research studies and within the vocabularies used by different repositories.
Collapse
Affiliation(s)
- Charles F. Turner
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Huaqin Pan
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Gregg W. Silk
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Mary-Anne Ardini
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Vesselina Bakalov
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Stephanie Bryant
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Susanna Cantor
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Kung-yen Chang
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Michael DeLatte
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Paul Eggers
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Laxminarayana Ganapathi
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Sujatha Lakshmikanthan
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Joshua Levy
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Sheping Li
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Joseph Pratt
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Norma Pugh
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Ying Qin
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Rebekah Rasooly
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Helen Ray
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Jean E. Richardson
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Amanda Flynn Riley
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Susan M. Rogers
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Charlotte Scheper
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Sylvia Tan
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Stacie White
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| | - Philip C. Cooley
- RTI International, PO Box 12194, Research Triangle Park, NC 27709, City University of New York (Queens College and the Graduate Center), Flushing, NY 11367, Poole College of Management, North Carolina State University, Nelson Hall, Raleigh, NC 27695, Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, and National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Bethesda, MD 29892, USA
| |
Collapse
|
28
|
Yuan R, Peters LL, Paigen B. Mice as a mammalian model for research on the genetics of aging. ILAR J 2011; 52:4-15. [PMID: 21411853 DOI: 10.1093/ilar.52.1.4] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Mice are an ideal mammalian model for studying the genetics of aging: considerable resources are available, the generation time is short, and the environment can be easily controlled, an important consideration when performing mapping studies to identify genes that influence lifespan and age-related diseases. In this review we highlight some salient contributions of the mouse in aging research: lifespan intervention studies in the Interventions Testing Program of the National Institute on Aging; identification of the genetic underpinnings of the effects of calorie restriction on lifespan; the Aging Phenome Project at the Jackson Laboratory, which has submitted multiple large, freely available phenotyping datasets to the Mouse Phenome Database; insights from spontaneous and engineered mouse mutants; and complex traits analyses identifying quantitative trait loci that affect lifespan. We also show that genomewide association peaks for lifespan in humans and lifespan quantitative loci for mice map to homologous locations in the genome. Thus, the vast bioinformatic and genetic resources of the mouse can be used to screen candidate genes identified in both mouse and human mapping studies, followed by functional testing, often not possible in humans, to determine their influence on aging.
Collapse
Affiliation(s)
- Rong Yuan
- The Jackson Laboratory, 600 Main Street, Bar Harbor, ME 04609, USA
| | | | | |
Collapse
|
29
|
Berndt A, Cario CL, Silva KA, Kennedy VE, Harrison DE, Paigen B, Sundberg JP. Identification of fat4 and tsc22d1 as novel candidate genes for spontaneous pulmonary adenomas. Cancer Res 2011; 71:5779-91. [PMID: 21764761 DOI: 10.1158/0008-5472.can-11-1418] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Genetic influences that underlie spontaneous lung oncogenesis are poorly understood. The objective of this study was to determine the genetic influences on spontaneous pulmonary adenoma frequency and severity in 28 strains of mice as part of a large-scale aging study conducted at the Jackson Aging Center (http://agingmice.jax.org/). Genome-wide association studies were conducted in these strains with both low-density (132,000) and high-density (4,000,000) panel of single-nucleotide polymorphisms (SNP). Our analysis revealed that adenomas were relatively less frequent and less severe in females than males, and that loci implicated in frequency and severity were often different between male and female mice. While some of the significant loci identified mapped to genomic locations known to be responsible for carcinogen-induced cancers (e.g., Pas1), others were unique to our study. In particular, Fat4 was influential in males and Tsc22d1 was influential in females. SNPs implicated were predicted to alter amino acid sequence and change protein function. In summary, our results suggested that genetic influences that underlie pulmonary adenoma frequency are dependent on gender, and that Fat4 and Tsc22d1 are likely candidate genes to influence formation of spontaneous pulmonary adenoma in aging male and female mice, respectively.
Collapse
Affiliation(s)
- Annerose Berndt
- Berndt Laboratory, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
| | | | | | | | | | | | | |
Collapse
|
30
|
Sundberg JP, Berndt A, Sundberg BA, Silva KA, Kennedy V, Bronson R, Yuan R, Paigen B, Harrison D, Schofield PN. The mouse as a model for understanding chronic diseases of aging: the histopathologic basis of aging in inbred mice. PATHOBIOLOGY OF AGING & AGE RELATED DISEASES 2011; 1:PBA-1-7179. [PMID: 22953031 PMCID: PMC3417678 DOI: 10.3402/pba.v1i0.7179] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2011] [Revised: 04/28/2011] [Accepted: 04/29/2011] [Indexed: 11/30/2022]
Abstract
Inbred mice provide a unique tool to study aging populations because of the genetic homogeneity within an inbred strain, their short life span, and the tools for analysis which are available. A large-scale longitudinal and cross-sectional aging study was conducted on 30 inbred strains to determine, using histopathology, the type and diversity of diseases mice develop as they age. These data provide tools that when linked with modern in silico genetic mapping tools, can begin to unravel the complex genetics of many of the common chronic diseases associated with aging in humans and other mammals. In addition, novel disease models were discovered in some strains, such as rhabdomyosarcoma in old A/J mice, to diseases affecting many but not all strains including pseudoxanthoma elasticum, pulmonary adenoma, alopecia areata, and many others. This extensive data set is now available online and provides a useful tool to help better understand strain-specific background diseases that can complicate interpretation of genetically engineered mice and other manipulatable mouse studies that utilize these strains.
Collapse
|
31
|
An intergenic region on chromosome 13q33.3 is associated with the susceptibility to kidney disease in type 1 and 2 diabetes. Kidney Int 2011; 80:105-11. [PMID: 21412220 DOI: 10.1038/ki.2011.64] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A genome-wide association scan of the Genetics of Kidneys in Diabetes (GoKinD) collections identified four novel susceptibility loci, located on chromosomes 7p14.3, 9q21.32, 11p15.4, and 13q33.3 associated with type 1 diabetic nephropathy. A recent evaluation of these loci in Japanese patients with type 2 diabetes supported an association at the 13q33.3 locus. To follow up these findings, we determined whether single-nucleotide polymorphisms (SNPs) at these same four loci were associated with diabetic nephropathy in the Joslin Study of Genetics of Nephropathy in Type 2 Diabetes collection. A total of 6 SNPs across these loci were genotyped in 646 normoalbuminuric controls and in 743 nephropathy patients of European ancestry. A significant association was identified at the 13q33.3 locus (rs9521445: P = 4.4 × 10(-3)). At this same locus, rs1411766 was also significantly associated with type 2 diabetic nephropathy (P = 0.03). Meta-analysis of these data with those of the Japanese and GoKinD collections significantly improved the strength of the association (P = 9.7 × 10(-9)). In addition, there was a significant association at the 11p15.4 locus (rs451041: P = 0.02). Thus, associations identified in the GoKinD collections on chromosomes 11p15.4 (near the CARS gene) and 13q33.3 (within an intergenic region between MYO16 and IRS2) are susceptibility loci of kidney disease common to both type 1 and 2 diabetes.
Collapse
|
32
|
Abstract
A substantial genetic contribution underlies variation in baseline peripheral blood counts. We performed quantitative trait locus/loci analyses to identify chromosome regions harboring genes influencing red cell hemoglobin concentration using the cell hemoglobin concentration mean (CHCM), a directly measured parameter analogous to the mean cell hemoglobin concentration. Fourteen significant loci (gene symbols Chcmq1-Chcmq14) were detected. Seven of these influenced CHCM in a sex-specific fashion, and 2 showed significant interactive effects (epistasis). For quantitative trait locus/loci detected in multiple crosses, confidence intervals were narrowed using statistical and bioinformatic approaches. Two strong candidate genes emerged and were further analyzed: adult β-globin (Hbb) for Chcmq3 on Chr 7, and transferrin (Trf) for Chcmq2 on Chr 9. High and low allele parental strains in crosses detecting Chcmq3 segregate 100% with the known ancestral haplotype blocks, hemoglobin (Hb) diffuse (Hbb(d)) and Hb single (Hbb(s)), respectively. Hbb(d) consists of nonidentical major and minor polypeptides and exhibits an increased positive charge relative to Hbb(s) due to the net loss of 2 negative residues in the Hbb(dminor) polypeptide, resulting in a pI of 7.85 versus 7.13. Thus, as shown in human erythrocytes, positively charged Hbs are associated with cell dehydration and increased CHCM in mouse erythrocytes.
Collapse
|
33
|
Pezzolesi MG, Skupien J, Mychaleckyj JC, Warram JH, Krolewski AS. Insights to the genetics of diabetic nephropathy through a genome-wide association study of the GoKinD collection. Semin Nephrol 2010; 30:126-40. [PMID: 20347642 DOI: 10.1016/j.semnephrol.2010.01.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The Genetics of Kidneys in Diabetes (GoKinD) study was initiated to facilitate research aimed at identifying genes involved in diabetic nephropathy (DN) in type 1 diabetes. In this review, we present an overview of this study and the various reports that have used its collection. At the forefront of these efforts is the recent genome-wide association scan implemented on the GoKinD collection. We highlight the results from our analysis of these data and describe compelling evidence from animal models that further support the potential role of associated loci in the susceptibility of DN. To enhance our analysis of genetic associations in GoKinD, using genome-wide imputation, we expanded our analysis of this collection to include genotype data from more than 2.4 million common single nucleotide polymorphisms. We illustrate the added utility of this enhanced dataset through the comprehensive fine-mapping of candidate genomic regions previously linked with DN and the targeted investigation of genes involved in candidate pathways implicated in its pathogenesis. Collectively, genome-wide association and genome-wide imputation data from the GoKinD collection will serve as a springboard for future investigations into the genetic basis of DN in type 1 diabetes.
Collapse
Affiliation(s)
- Marcus G Pezzolesi
- Section on Genetics and Epidemiology, Research Division, Joslin Diabetes Center, Boston, MA 02215, USA
| | | | | | | | | |
Collapse
|
34
|
The genetics of albuminuria: from haplotype association mapping in mice to genetic causation in humans. Kidney Int 2010; 77:173-5. [PMID: 20075951 DOI: 10.1038/ki.2009.457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Genome-wide haplotype association mapping (HAM) in inbred mouse strains emerged as an efficient method for identifying novel quantitative trait loci for disease-related phenotypes. In this issue of Kidney International, Tsaih et al. present the results of the first HAM for age-related kidney damage in mice and examine the detected loci in the context of the human genome-wide association study for diabetic nephropathy.
Collapse
|