Abstract
Purpose
To evaluate the plasma concentration of the soluble form of the urokinase-type plasminogen activator receptor ((s)uPAR), an established biomarker of chronic inflammation, in patients affected by neovascular age-related macular degeneration.
Methods
Forty consecutive patients affected by age-related macular degeneration and 52 subjects with no history of the disease were included in this case–control study. The two groups of individuals considered for the study were matched for age, sex, and class of medications taken. Plasma concentration of suPAR was measured using a specific ELISA assay (suPARnostic, Birkeroed, Denmark).
Results
The case and control groups were similar for age, gender distribution, weight, height, and systolic and diastolic blood pressure, as well as for dyslipidemia and high blood pressure medication (P > 0.28). The plasma concentrations of suPAR were significantly increased in patients with neovascular age-related macular degeneration when compared to controls (6.19 ± 2.2 ng/ml, vs 5.21 ± 1.5, respectively, mean ± SD P = 0.01).
Conclusions
Patients with neovascular age-related macular degeneration display increased plasma levels of suPAR, suggesting that chronic inflammation may be involved in the pathogenesis of the disease.
Similar content being viewed by others
References
Desmedt S, Desmedt V, Delanghe JR, Speeckaert R, Speeckaert MM (2017) The intriguing role of soluble urokinase receptor in inflammatory diseases. Crit Rev Clin Lab Sci 54(2):117–133. https://doi.org/10.1080/10408363.2016.1269310
Hodges GW, Bang CN, Wachtell K, Eugen-Olsen J, Jeppesen JL (2015) suPAR: a new biomarker for cardiovascular disease? Can J Cardiol 31(10):1293–1302. https://doi.org/10.1016/j.cjca.2015.03.023
Kronbichler A, Saleem MA, Meijers B, Shin JI (2016) Soluble urokinase receptors in focal segmental glomerulosclerosis: a review on the scientific point of view. J Immunol Res 2016:2068691. https://doi.org/10.1155/2016/2068691
Xue W, Hashimoto K, Toi Y (1998) Functional involvement of urokinase-type plasminogen activator receptor in pemphigus acantholysis. J Cutan Pathol 25(9):469–474
Del Rosso M, Fibbi G, Matucci Cerinic M (1999) The urokinase-type plasminogen activator system and inflammatory joint diseases. Clin Exp Rheumatol 17(4):485–498
Toldi G, Bekő G, Kádár G, Mácsai E, Kovács L, Vásárhelyi B, Balog A (2013) Soluble urokinase soluble urokinase plasminogen activator receptor (suPAR) in the assessment of inflammatory activity of rheumatoid arthritis patients in remission. Clin Chem Lab Med 51(2):327–332. https://doi.org/10.1515/cclm-2012-0221
Nita M, Strzałka-Mrozik B, Grzybowski A, Mazurek U, Romaniuk W (2014) Age-related macular degeneration and changes in the extracellular matrix. Med Sci Monit 20:1003–1016. https://doi.org/10.12659/MSM.889887
Elner SG, Elner VM, Kindzelskii AL, Horino K, Davis HR, Todd RF 3rd, Glagov S, Petty HR (2003) Human RPE cell lysis of extracellular matrix: functional urokinase plasminogen activator receptor (uPAR), collagenase and elastase. Exp Eye Res 76(5):585–595
Alexander JP, Bradley JMB, Gabourel JD, Acott TS (1990) Expression of matrix metalloproteinases and inhibitor by human retinal pigment epithelium. Invest Ophthalmol Vis Sci 31(12):2520–2528
Schmidt-Erfurth U, Chong V, Loewenstein A, Larsen M, Souied E, Schlingemann R, Eldem B, Monés J, Richard G, Bandello F, European Society of Retina Specialists (2014) Guidelines for the management of neovascular age-related macular degeneration by the European Society of Retina Specialists (EURETINA). Br J Ophthalmol 98(9):1144–1167. https://doi.org/10.1136/bjophthalmol-2014-305702
Yang S, Zhao J, Sun X (2016) Resistance to anti-VEGF therapy in neovascular age-related macular degeneration: a comprehensive review. Drug Des Devel Ther 10:1857–1867. https://doi.org/10.2147/DDDT.S97653
Cascella R, Strafella C, Longo G, Ragazzo M, Manzo L, De Felici C, Errichiello V, Caputo V, Viola F, Eandi CM, Staurenghi G, Cusumano A, Mauriello S, Marsella LT, Ciccacci C, Borgiani P, Sangiuolo F, Novelli G, Ricci F, Giardina E (2017) Uncovering genetic and non-genetic biomarkers specific for exudative age-related macular degeneration: significant association of twelve variants. Oncotarget 9(8):7812–7821. https://doi.org/10.18632/oncotarget.23241
Hong T, Tan AG, Mitchell P, Wang JJ (2011) A review and meta-analysis of the association between C-reactive protein and age-related macular degeneration. Surv Ophthalmol 56(3):184–194. https://doi.org/10.1016/j.survophthal.2010.08.007
Seddon JM, Gensler G, Milton RC, Klein ML, Rifai N (2004) Association between C-reactive protein and age-related macular degeneration. JAMA 291(6):704–710. https://doi.org/10.1001/jama.291.6.704
Bhutto IA, Baba T, Merges C, Juriasinghani V, McLeod DS, Lutty GA (2011) C-reactive protein and complement factor H in aged human eyes and eyes with age-related macular degeneration. Br J Ophthalmol 95(9):1323–1330. https://doi.org/10.1136/bjo.2010.199216
Iannaccone A, Neeli I, Krishnamurthy P, Lenchik NI, Wan H, Gerling IC, Desiderio DM, Radic MZ (2012) Autoimmune biomarkers in age-related macular degeneration: a possible role player in diseasedevelopment and progression. Adv Exp Med Biol 723:11–16. https://doi.org/10.1007/978-1-4614-0631-0_2
Paun CC, Ersoy L, Schick T, Groenewoud JM, Lechanteur YT, Fauser S, Hoyng CB, de Jong EK, denHollander AI (2015) Genetic variants and systemic complement activation levels are associated with serum lipoprotein levels in age-related macular degeneration. Invest Ophthalmol Vis Sci 56(13):7766–7773. https://doi.org/10.1167/iovs.15-17035
Lambert NG, El Shelmani H, Singh MK, Mansergh FC, Wride MA, Padilla M, Keegan D, Hogg RE, Ambati BK (2016) Risk factors and biomarkers of age-related macular degeneration. Prog Retin Eye Res 54:64–102. https://doi.org/10.1016/j.preteyeres.2016.04.003
Dande RR, Peev V, Altintas MM, Reiser J (2017) Soluble urokinase receptor and the kidney response in diabetes mellitus. J Diabetes Res 2017:3232848. https://doi.org/10.1155/2017/3232848
Stephens RW, Pedersen AN, Nielsen HJ, Hamers MJ, Høyer-Hansen G, Rønne E, Dybkjaer E, Danø K, Brünner N (1997) ELISA determination of soluble urokinase receptor in blood from healthy donors and cancer patients. Clin Chem 43(10):1868–1876
Kauppinen A, Paterno JJ, Blasiak J, Salminen A, Kaarniranta K (2016) Inflammation and its role in age-related macular degeneration. Cell Mol Life Sci 73(9):1765–1786. https://doi.org/10.1007/s00018-016-2147-8
Ozaki E, Campbell M, Kiang AS, Humphries M, Doyle SL, Humphries P (2014) Inflammation in age-related macular degeneration. Adv Exp Med Biol 801:229–235. https://doi.org/10.1007/978-1-4614-3209-8_30
Sparrow JR, Hicks D, Hamel CP (2010) The retinal pigment epithelium in health and disease. Curr Mol Med 10(9):802–823
Chan CC, Ardeljan D (2014) Molecular pathology of macrophages and interleukin-17 in age-related macular degeneration. Adv Exp Med Biol 801:193–198. https://doi.org/10.1007/978-1-4614-3209-8_25
Liu B, Wei L, Meyerle C, Tuo J, Sen HN, Li Z, Chakrabarty S, Agron E, Chan CC, Klein ML, Chew E, Ferris F, Nussenblatt RB (2011) Complement component C5a promotes expression of IL-22 and IL-17 from human T cells and its implication in age-related macular degeneration. J Transl Med 9:1–12. https://doi.org/10.1186/1479-5876-9-111
De Lorenzi V, Sarra Ferraris GM, Madsen JB, Lupia M, Andreasen PA, Sidenius N (2016) Urokinase links plasminogen activation and cell adhesion by cleavage of the RGD motif in vitronectin. EMBO Rep 17(7):982–998. https://doi.org/10.15252/embr.201541681
Penfold PL, Killingsworth MC, Sarks SH (1985) Senile macular degeneration: the involvement of immunocompetent cells. Graefes Arch Clin Exp Ophthalmol 223(2):69–76
Ding X, Patel M, Chan CC (2009) Molecular pathology of age-related macular degeneration. Prog Retin Eye Res 28(1):1–18. https://doi.org/10.1016/j.preteyeres.2008.10.001
Eugen-Olsen J, Andersen O, Linneberg A, Ladelund S, Hansen TW, Langkilde A, Petersen J, Pielak T, Møller LN, Jeppesen J, Lyngbaek S, Fenger M, Olsen MH, Hildebrandt PR, Borch-Johnsen K, Jørgensen T, Haugaard SB (2010) Circulating soluble urokinase plasminogen activator receptor predicts cancer, cardiovascular disease, diabetes and mortality in the general population. J Intern Med 268(3):296–308. https://doi.org/10.1111/j.1365-2796.2010.02252.x
Small KW, Garabetian CA, Shaya FS (2017) Macular degeneration and aspirin use. Retina 37(9):1630–1635. https://doi.org/10.1097/IAE.0000000000001475
Modjtahedi BS, Fong DS, Jorgenson E, Van Den Eeden SK, Quinn V, Slezak JM (2018) The relationship between nonsteroidal anti-inflammatory drug use and age-related macular degeneration. Am J Ophthalmol 188:111–122. https://doi.org/10.1016/j.ajo.2018.01.012
Avan A, Tavakoly Sany SB, Ghayour-Mobarhan M, Rahimi HR, Tajfard M, Ferns G (2018) Serum C-reactive protein in the prediction of cardiovascular diseases: overview of the latest clinical studies and public health practice. J Cell Physiol. https://doi.org/10.1002/jcp.26791
Xin X, Sun Y, Li S, Xu H, Zhang D (2018) Age-related macular degeneration and the risk of all-cause and cardiovascular mortality: a meta-analysis of cohort studies. Retina 38(3):497–507. https://doi.org/10.1097/IAE.0000000000001741
Ichihara N, Miyamura M, Maeda D, Fujisaka T, Fujita SI, Morita H, Takeda Y, Ito T, Sohmiya K, Hoshiga M, Ishizaka N (2017) Association between serum soluble urokinase-type plasminogen activator receptor and atrial fibrillation. J Arrhythm 33(5):469–474. https://doi.org/10.1016/j.joa.2017.05.003
Funding
This study was supported by a Grant from the International Agency for the Prevention of Blindness (IAPB), Italian section (Dr Scotti).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Ethical approval
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent
Informed consent was obtained from all individual participants included in the study.
Additional information
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Scotti, F., Milani, P., Setaccioli, M. et al. Increased soluble urokinase plasminogen activator receptor (suPAR) levels in neovascular age-related macular degeneration: a role for inflammation in the pathogenesis of the disease?. Graefes Arch Clin Exp Ophthalmol 257, 899–903 (2019). https://doi.org/10.1007/s00417-018-04230-w
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00417-018-04230-w