Inflammation Reduction by TREhalose AdminisTration

Summary

Arterial wall inflammation has been consistently suggested to serve a causal role in promoting atherosclerosis and predisposing to hard cardiovascular outcomes. Therefore, there is a global trend in the pharmaceutical industry to develop safe and effective anti-inflammatory agents that could lessen arterial wall inflammation and prevent its detrimental impact on atheroma growth and instability. To this end, autophagy has emerged as a key regulator of inflammation and dysfunctional autophagy machinery has been consistently reported as a contributing factor to atherosclerosis and inflammation. Trehalose, a natural disaccharide sugar found extensively among miscellaneous organisms, by preventing protein denaturation plays various protective roles against stress conditions. Numerous studies indicated trehalose's ability to induce macrophage autophagy-lysosomal biogenesis and reduce inflammation. Also, intravenous (IV) administration of trehalose showed beneficial effects in the reversal of atherosclerosis in atherosclerotic animals. Therefore, in this study, the investigators will explore the potential efficacy of IV trehalose administration on arterial inflammation by employing an positron emission tomography (PET) with 18F-labeled fluoro-2-deoxyglucose (18F-FDG) and computed tomography (18F-FDG PET/CT) technique which noninvasively characterizes vascular inflammation and atherosclerosis.

Timeline

Start

2020-08-20

Primary completion

2022-05-20

Completion

2022-08

Publications

• Background Libby P. Inflammation in atherosclerosis. Arterioscler Thromb Vasc Biol. 2012 Sep;32(9):2045-51. doi: 10.1161/ATVBAHA.108.179705.
• Background Libby P, Hansson GK. Taming Immune and Inflammatory Responses to Treat Atherosclerosis. J Am Coll Cardiol. 2018 Jan 16;71(2):173-176. doi: 10.1016/j.jacc.2017.10.081. No abstract available.
• Background Liao X, Sluimer JC, Wang Y, Subramanian M, Brown K, Pattison JS, Robbins J, Martinez J, Tabas I. Macrophage autophagy plays a protective role in advanced atherosclerosis. Cell Metab. 2012 Apr 4;15(4):545-53. doi: 10.1016/j.cmet.2012.01.022. Epub 2012 Mar 22.
• Background Maiuri MC, Grassia G, Platt AM, Carnuccio R, Ialenti A, Maffia P. Macrophage autophagy in atherosclerosis. Mediators Inflamm. 2013;2013:584715. doi: 10.1155/2013/584715. Epub 2013 Jan 21.
• Background Shao BZ, Han BZ, Zeng YX, Su DF, Liu C. The roles of macrophage autophagy in atherosclerosis. Acta Pharmacol Sin. 2016 Feb;37(2):150-6. doi: 10.1038/aps.2015.87. Epub 2016 Jan 11.
• Background Iwatsuka R, Matsue Y, Yonetsu T, O'uchi T, Matsumura A, Hashimoto Y, Hirao K. Arterial inflammation measured by 18F-FDG-PET-CT to predict coronary events in older subjects. Atherosclerosis. 2018 Jan;268:49-54. doi: 10.1016/j.atherosclerosis.2017.11.016. Epub 2017 Nov 21.
• Background Chrapko BE, Chrapko M, Nocun A, Stefaniak B, Zubilewicz T, Drop A. Role of 18F-FDG PET/CT in the diagnosis of inflammatory and infectious vascular disease. Nucl Med Rev Cent East Eur. 2016;19(1):28-36. doi: 10.5603/NMR.2016.0006.
• Background Menezes LJ, Kotze CW, Hutton BF, Endozo R, Dickson JC, Cullum I, Yusuf SW, Ell PJ, Groves AM. Vascular inflammation imaging with 18F-FDG PET/CT: when to image? J Nucl Med. 2009 Jun;50(6):854-7. doi: 10.2967/jnumed.108.061432. Epub 2009 May 14.
• Background Chen Q, Haddad GG. Role of trehalose phosphate synthase and trehalose during hypoxia: from flies to mammals. J Exp Biol. 2004 Aug;207(Pt 18):3125-9. doi: 10.1242/jeb.01133.
• Background Castillo K, Nassif M, Valenzuela V, Rojas F, Matus S, Mercado G, Court FA, van Zundert B, Hetz C. Trehalose delays the progression of amyotrophic lateral sclerosis by enhancing autophagy in motoneurons. Autophagy. 2013 Sep;9(9):1308-20. doi: 10.4161/auto.25188. Epub 2013 Jun 6.
• Background Mardones P, Rubinsztein DC, Hetz C. Mystery solved: Trehalose kickstarts autophagy by blocking glucose transport. Sci Signal. 2016 Feb 23;9(416):fs2. doi: 10.1126/scisignal.aaf1937.
• Background Sergin I, Evans TD, Zhang X, Bhattacharya S, Stokes CJ, Song E, Ali S, Dehestani B, Holloway KB, Micevych PS, Javaheri A, Crowley JR, Ballabio A, Schilling JD, Epelman S, Weihl CC, Diwan A, Fan D, Zayed MA, Razani B. Exploiting macrophage autophagy-lysosomal biogenesis as a therapy for atherosclerosis. Nat Commun. 2017 Jun 7;8:15750. doi: 10.1038/ncomms15750.
• Background van der Valk FM, Bekkering S, Kroon J, Yeang C, Van den Bossche J, van Buul JD, Ravandi A, Nederveen AJ, Verberne HJ, Scipione C, Nieuwdorp M, Joosten LA, Netea MG, Koschinsky ML, Witztum JL, Tsimikas S, Riksen NP, Stroes ES. Oxidized Phospholipids on Lipoprotein(a) Elicit Arterial Wall Inflammation and an Inflammatory Monocyte Response in Humans. Circulation. 2016 Aug 23;134(8):611-24. doi: 10.1161/CIRCULATIONAHA.116.020838. Epub 2016 Aug 5.
• Background van der Valk FM, Verweij SL, Zwinderman KA, Strang AC, Kaiser Y, Marquering HA, Nederveen AJ, Stroes ES, Verberne HJ, Rudd JH. Thresholds for Arterial Wall Inflammation Quantified by 18F-FDG PET Imaging: Implications for Vascular Interventional Studies. JACC Cardiovasc Imaging. 2016 Oct;9(10):1198-1207. doi: 10.1016/j.jcmg.2016.04.007. Epub 2016 Sep 14.

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