Abstract
Disruption of the blood–brain barrier (BBB) is a surrogate marker of acute inflammatory lesions in multiple sclerosis (MS) and its animal model experimental autoimmune encephalomyelitis (EAE). Data from experiments suggest that apolipoprotein E (ApoE) plays an important role in the antiinflammatory and immunological process in MS/EAE. Recent researches have shown that lack of ApoE leads to loss of cerebrovascular integrity and BBB breakdown causing neuronal injury. Cerebrovascular effects of ApoE might be another important element resulting to more susceptibility to MS/EAE. However, there is no direct evidence that ApoE dependently contributes to maintaining BBB integrity in EAE. In this study, we induced EAE in ApoE−/− mice and wild-type mice. During EAE, our results show that lack of ApoE increased the Evan’s blue (EB) permeability of BBB. Furthermore, deficiency of ApoE upregulated MMP-9 expression activity but decreased the expression of endothelial cell tight junction integral proteins claudin-5 and occludin. Our result also suggests that the protective role of ApoE in EAE by maintaining BBB integrity could be another interesting therapeutic target at MS/EAE.
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References
Abbott NJ, Ronnback L, Hansson E (2006) Astrocyte-endothelial interactions at the blood–brain barrier. Nat Rev Neurosci 7:41–53
Abbott NJ, Patabendige AA, Dolman DE, Yusof SR, Begley DJ (2010) Structure and function of the blood–brain barrier. Neurobiol Dis 37:13–25
Adibhatla RM, Hatcher JF (2008) Tissue plasminogen activator (tPA) and matrix metalloproteinases in the pathogenesis of stroke: therapeutic strategies. CNS Neurol Disord Drug Targets 7:243–253
Alvarez JI, Cayrol R, Prat A (2011) Disruption of central nervous system barriers in multiple sclerosis. Biochim Biophys Acta 1812:252–264
Arima Y, Kamimura D, Sabharwal L, Yamada M, Bando H, Ogura H, Atsumi T, Murakami M (2013) Regulation of immune cell infiltration into the CNS by regional neural inputs explained by the gate theory. Mediators Inflamm 2013:898165
Badaut J, Copin JC, Fukuda AM, Gasche Y, Schaller K, da Silva RF (2012) Increase of arginase activity in old apolipoprotein-E deficient mice under Western diet associated with changes in neurovascular unit. J Neuroinflammation 9:132
Bar-Or A, Nuttall RK, Duddy M, Alter A, Kim HJ, Ifergan I, Pennington CJ, Bourgoin P, Edwards DR, Yong VW (2003) Analyses of all matrix metalloproteinase members in leukocytes emphasize monocytes as major inflammatory mediators in multiple sclerosis. Brain 126:2738–2749
Bell RD, Winkler EA, Singh I, Sagare AP, Deane R, Wu Z, Holtzman DM, Betsholtz C, Armulik A, Sallstrom J, Berk BC, Zlokovic BV (2012) Apolipoprotein E controls cerebrovascular integrity via cyclophilin A. Nature 485:512–516
Buenafe AC, Andrew S, Afentoulis M, Offner H, Vandenbark AA (2010) Prevention and treatment of experimental autoimmune encephalomyelitis with clonotypic CDR3 peptides: CD4(+) Foxp3(+) T-regulatory cells suppress interleukin-2-dependent expansion of myelin basic protein-specific T cells. Immunology 130:114–124
Chaturvedi M, Kaczmarek L (2013) MMP-9 inhibition: a therapeutic strategy in ischemic stroke. Mol Neurobiol
Errede M, Girolamo F, Ferrara G, Strippoli M, Morando S, Boldrin V, Rizzi M, Uccelli A, Perris R, Bendotti C, Salmona M, Roncali L, Virgintino D (2012) Blood–brain barrier alterations in the cerebral cortex in experimental autoimmune encephalomyelitis. J Neuropathol Exp Neurol 71:840–854
Gaudreault N, Kumar N, Olivas VR, Eberle D, Rapp JH, Raffai RL (2012) Macrophage-specific apoE gene repair reduces diet-induced hyperlipidemia and atherosclerosis in hypomorphic Apoe mice. PLoS One 7:e35816
Gold SM, Sasidhar MV, Morales LB, Du S, Sicotte NL, Tiwari-Woodruff SK, Voskuhl RR (2009) Estrogen treatment decreases matrix metalloproteinase (MMP)-9 in autoimmune demyelinating disease through estrogen receptor alpha (ERalpha). Lab Invest 89:1076–1083
Grinberg LT, Thal DR (2010) Vascular pathology in the aged human brain. Acta Neuropathol 119:277–290
Hafezi-Moghadam A, Thomas KL, Wagner DD (2007) ApoE deficiency leads to a progressive age-dependent blood–brain barrier leakage. Am J Physiol Cell Physiol 292:C1256–C1262
Hauser PS, Narayanaswami V, Ryan RO (2011) Apolipoprotein E: from lipid transport to neurobiology. Prog Lipid Res 50:62–74
Honma T, Tsuduki T, Sugawara S, Kitano Y, Ito J, Kijima R, Tsubata M, Nakagawa K, Miyazawa T (2013) Aging decreases antioxidant effects and increases lipid peroxidation in the Apolipoprotein E deficient mouse. J Clin Biochem Nutr 52:234–240
Kandagaddala LD, Kang MJ, Chung BC, Patterson TA, Kwon OS (2012) Expression and activation of matrix metalloproteinase-9 and NADPH oxidase in tissues and plasma of experimental autoimmune encephalomyelitis in mice. Exp Toxicol Pathol 64:109–114
Karussis D, Michaelson DM, Grigoriadis N, Korezyn AD, Mizrachi-Koll R, Chapman S, Abramsky O, Chapman J (2003) Lack of apolipoprotein-E exacerbates experimental allergic encephalomyelitis. Mult Scler 9:476–480
Kim H, Walczak P, Kerr C, Galpoththawela C, Gilad AA, Muja N, Bulte JW (2012) Immunomodulation by transplanted human embryonic stem cell-derived oligodendroglial progenitors in experimental autoimmune encephalomyelitis. Stem Cells 30:2820–2829
Langrish CL, Chen Y, Blumenschein WM, Mattson J, Basham B, Sedgwick JD, McClanahan T, Kastelein RA, Cua DJ (2005) IL-23 drives a pathogenic T cell population that induces autoimmune inflammation. J Exp Med 201:233–240
Lanz TV, Becker S, Osswald M, Bittner S, Schuhmann MK, Opitz CA, Gaikwad S, Wiestler B, Litzenburger UM, Sahm F, Ott M, Iwantscheff S, Grabitz C, Mittelbronn M, von Deimling A, Winkler F, Meuth SG, Wick W, Platten M (2013) Protein kinase C beta as a therapeutic target stabilizing blood–brain barrier disruption in experimental autoimmune encephalomyelitis. Proc Natl Acad Sci U S A 110:14735–14740
Lee Y, Aono M, Laskowitz D, Warner DS, Pearlstein RD (2004) Apolipoprotein E protects against oxidative stress in mixed neuronal-glial cell cultures by reducing glutamate toxicity. Neurochem Int 44:107–118
Liuzzi GM, Trojano M, Fanelli M, Avolio C, Fasano A, Livrea P, Riccio P (2002) Intrathecal synthesis of matrix metalloproteinase-9 in patients with multiple sclerosis: implication for pathogenesis. Mult Scler 8:222–228
Methia N, Andre P, Hafezi-Moghadam A, Economopoulos M, Thomas KL, Wagner DD (2001) ApoE deficiency compromises the blood brain barrier especially after injury. Mol Med 7:810–815
Moore CS, Milner R, Nishiyama A, Frausto RF, Serwanski DR, Pagarigan RR, Whitton JL, Miller RH, Crocker SJ (2011) Astrocytic tissue inhibitor of metalloproteinase-1 (TIMP-1) promotes oligodendrocyte differentiation and enhances CNS myelination. J Neurosci 31:6247–6254
Muroski ME, Roycik MD, Newcomer RG, Van den Steen PE, Opdenakker G, Monroe HR, Sahab ZJ, Sang QX (2008) Matrix metalloproteinase-9/gelatinase B is a putative therapeutic target of chronic obstructive pulmonary disease and multiple sclerosis. Curr Pharm Biotechnol 9:34–46
Nishitsuji K, Hosono T, Nakamura T, Bu G, Michikawa M (2011) Apolipoprotein E regulates the integrity of tight junctions in an isoform-dependent manner in an in vitro blood–brain barrier model. J Biol Chem 286:17536–17542
Opdenakker G, Van Damme J (2011) Probing cytokines, chemokines and matrix metalloproteinases towards better immunotherapies of multiple sclerosis. Cytokine Growth Factor Rev 22:359–365
Opdenakker G, Nelissen I, Van Damme J (2003) Functional roles and therapeutic targeting of gelatinase B and chemokines in multiple sclerosis. Lancet Neurol 2:747–756
Plump AS, Smith JD, Hayek T, Aalto-Setala K, Walsh A, Verstuyft JG, Rubin EM, Breslow JL (1992) Severe hypercholesterolemia and atherosclerosis in apolipoprotein E-deficient mice created by homologous recombination in ES cells. Cell 71:343–353
Roe K, Kumar M, Lum S, Orillo B, Nerurkar VR, Verma S (2012) West Nile virus-induced disruption of the blood–brain barrier in mice is characterized by the degradation of the junctional complex proteins and increase in multiple matrix metalloproteinases. J Gen Virol 93:1193–1203
Rosenberg GA, Estrada EY, Dencoff JE (1998) Matrix metalloproteinases and TIMPs are associated with blood–brain barrier opening after reperfusion in rat brain. Stroke 29:2189–2195
Steinman L. (2013). Inflammatory cytokines at the summits of pathological signal cascades in brain diseases. Sci Signal 6: pe3
Steinman L, Zamvil SS (2006) How to successfully apply animal studies in experimental allergic encephalomyelitis to research on multiple sclerosis. Ann Neurol 60:12–21
Thorne M, Moore CS, Robertson GS (2009) Lack of TIMP-1 increases severity of experimental autoimmune encephalomyelitis: effects of darbepoetin alfa on TIMP-1 null and wild-type mice. J Neuroimmunol 211:92–100
Toft-Hansen H, Nuttall RK, Edwards DR, Owens T (2004) Key metalloproteinases are expressed by specific cell types in experimental autoimmune encephalomyelitis. J Immunol 173:5209–5218
Wei J, Zheng M, Liang P, Wei Y, Yin X, Tang Y, Xue Y (2013) Apolipoprotein E and its mimetic peptide suppress Th1 and Th17 responses in experimental autoimmune encephalomyelitis. Neurobiol Dis 56:59–65
Wolburg H, Lippoldt A (2002) Tight junctions of the blood–brain barrier: development, composition and regulation. Vascul Pharmacol 38:323–337
Zhang HL, Wu J, Zhu J (2010) The immune-modulatory role of apolipoprotein E with emphasis on multiple sclerosis and experimental autoimmune encephalomyelitis. Clin Dev Immunol 2010:186813
Zlokovic BV (2013) Cerebrovascular effects of apolipoprotein E: implications for Alzheimer disease. JAMA Neurol 70:440–444
Acknowledgments
This work was supported partly by the National Research Program of China (81260188), partly by the Guangxi Higher Education research project grant (201204LX050), and partly by the Guangxi Natural Science Foundation Grants (0991009, 2012GXNSFAA053082).
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M. Zheng and J. Wei contributed equally.
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Zheng, M., Wei, J., Tang, Y. et al. ApoE-Deficient Promotes Blood–Brain Barrier Disruption in Experimental Autoimmune Encephalomyelitis via Alteration of MMP-9. J Mol Neurosci 54, 282–290 (2014). https://doi.org/10.1007/s12031-014-0291-x
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DOI: https://doi.org/10.1007/s12031-014-0291-x