SODIUM–GLUCOSE COTRANSPORTER 2 INHIBITORS (SGLT2 INHIBITORS): CARDIOPROTECTIVE MECHANISMS AND CLINICAL EFFICACY IN HEART FAILURE
Keywords:
Keywords: heart failure, SGLT2 inhibitors, cardioprotective properties, pleiotropic effects, chronic kidney disease, inflammation, oxidative stress, autophagyAbstract
Abstract. Heart failure (HF) is becoming an increasingly serious healthcare challenge due to population aging and the rising prevalence of comorbid conditions. Although major advances in treatment have improved patient outcomes, HF continues to impose a substantial clinical and economic burden, highlighting the need for novel therapeutic strategies [1]. Sodium–glucose cotransporter 2 inhibitors (SGLT2 inhibitors) have recently emerged as a promising treatment option, demonstrating beneficial effects across the entire spectrum of HF, regardless of left ventricular ejection fraction (LVEF). This review explores the diverse mechanisms underlying the cardioprotective properties of SGLT2 inhibitors, including their ability to regulate energy metabolism, reduce oxidative stress, suppress inflammation, and promote autophagy. In addition, SGLT2 inhibitors shift myocardial energy utilization away from carbohydrates toward more energy-efficient substrates such as fatty acids and ketone bodies, thereby improving mitochondrial function and decreasing insulin resistance.
References
1. Piperis C, Marathonitis A, Anastasiou A, Theofilis P, Mourouzis K, Giannakodimos A, Tryfou E, Oikonomou E, Siasos G, Tousoulis D. Multifaceted Impact of SGLT2 Inhibitors in Heart Failure Patients: Exploring Diverse Mechanisms of Action. Biomedicines. 2024 Oct 11;12(10):2314.
2. Delanaye P., Scheen A.J. EMPA-KIDNEY: Empagliflozin in chronic kidney disease. Rev. Med. Liege. 2023;78:24–28.
3. Bhatt D.L., Szarek M., Steg P.G., Cannon C.P., Leiter L.A., McGuire D.K., Lewis J.B., Riddle M.C., Voors A.A., Metra M., et al. Sotagliflozin in Patients with Diabetes and Recent Worsening Heart Failure. N. Engl. J. Med. 2021;384:117–128.
4. Rastogi A., Januzzi J.L., Jr. Pleiotropic Effects of Sodium-Glucose Cotransporter-2 Inhibitors in Cardiovascular Disease and Chronic Kidney Disease. J. Clin. Med. 2023;12:2824
5. Karwi Q.G., Uddin G.M., Ho K.L., Lopaschuk G.D. Loss of Metabolic Flexibility in the Failing Heart. Front. Cardiovasc. Med. 2018;5:68.
6. Glatz J.F.C., Nabben M., Young M.E., Schulze P.C., Taegtmeyer H., Luiken J. Re-balancing cellular energy substrate metabolism to mend the failing heart. Biochim. Biophys. Acta Mol. Basis Dis. 2020;1866:165579.
7. Chae H., Augustin R., Gatineau E., Mayoux E., Bensellam M., Antoine N., Khattab F., Lai B.K., Brusa D., Stierstorfer B., et al. SGLT2 is not expressed in pancreatic alpha- and beta-cells, and its inhibition does not directly affect glucagon and insulin secretion in rodents and humans. Mol. Metab. 2020;42:101071.
8. Yaribeygi H., Sathyapalan T., Maleki M., Jamialahmadi T., Sahebkar A. Molecular mechanisms by which SGLT2 inhibitors can induce insulin sensitivity in diabetic milieu: A mechanistic review. Life Sci. 2020;240:117090.
9. Fazio S., Mercurio V., Affuso F., Bellavite P. The Negative Impact of Insulin Resistance/Hyperinsulinemia on Chronic Heart Failure and the Potential Benefits of Its Screening and Treatment. Biomedicines. 2023;11:2928.
10. Li X., Flynn E.R., do Carmo J.M., Wang Z., da Silva A.A., Mouton A.J., Omoto A.C.M., Hall M.E., Hall J.E. Direct Cardiac Actions of Sodium-Glucose Cotransporter 2 Inhibition Improve Mitochondrial Function and Attenuate Oxidative Stress in Pressure Overload-Induced Heart Failure. Front. Cardiovasc. Med. 2022
11. Murphy S.P., Kakkar R., McCarthy C.P., Januzzi J.L., Jr. Inflammation in Heart Failure: JACC State-of-the-Art Review. J. Am. Coll. Cardiol. 2020;75:1324–1340.
12. Kawai T., Akira S. The role of pattern-recognition receptors in innate immunity: Update on Toll-like receptors. Nature Immunol. 2010;11:373–384.
13. Kaya Z., Leib C., Katus H.A. Autoantibodies in heart failure and cardiac dysfunction. Circ. Res. 2012;110:145–158.
14. Hara M., Matsumori A., Ono K., Kido H., Hwang M.W., Miyamoto T., Iwasaki A., Okada M., Nakatani K., Sasayama S. Mast cells cause apoptosis of cardiomyocytes and proliferation of other intramyocardial cells in vitro. Circulation. 1999;100:1443–1449.
15. Chen H., Tran D., Yang H.C., Nylander S., Birnbaum Y., Ye Y. Dapagliflozin and Ticagrelor Have Additive Effects on the Attenuation of the Activation of the NLRP3 Inflammasome and the Progression of Diabetic Cardiomyopathy: An AMPK-mTOR Interplay. Cardiovasc. Drugs Ther. 2020;34:443–461.
16. Lee N., Heo Y.J., Choi S.E., Jeon J.Y., Han S.J., Kim D.J., Kang Y., Lee K.W., Kim H.J. Anti-inflammatory Effects of Empagliflozin and Gemigliptin on LPS-Stimulated Macrophage via the IKK/NF-kappaB, MKK7/JNK, and JAK2/STAT1 Signalling Pathways. J. Immunol. Res. 2021;2021:9944880.
17. Abdollahi E., Keyhanfar F., Delbandi A.A., Falak R., Hajimiresmaiel S.J., Shafiei M. Dapagliflozin exerts anti-inflammatory effects via inhibition of LPS-induced TLR-4 overexpression and NF-κB activation in human endothelial cells and differentiated macrophages. Eur. J. Pharmacol. 2022;918:174715.
18. Kim S.R., Lee S.G., Kim S.H., Kim J.H., Choi E., Cho W., Rim J.H., Hwang I., Lee C.J., Lee M., et al. SGLT2 inhibition modulates NLRP3 inflammasome activity via ketones and insulin in diabetes with cardiovascular disease. Nat. Commun. 2020;11:2127.
19. Packer M. Critical Reanalysis of the Mechanisms Underlying the Cardiorenal Benefits of SGLT2 Inhibitors and Reaffirmation of the Nutrient Deprivation Signaling/Autophagy Hypothesis. Circulation. 2022;146:1383–1405.
20. Bielawska M., Warszyńska M., Stefańska M., Błyszczuk P. Autophagy in Heart Failure: Insights into Mechanisms and Therapeutic Implications. J. Cardiovasc. Dev. Dis. 2023;10:352.
21. Taneike M., Yamaguchi O., Nakai A., Hikoso S., Takeda T., Mizote I., Oka T., Tamai T., Oyabu J., Murakawa T., et al. Inhibition of autophagy in the heart induces age-related cardiomyopathy. Autophagy. 2010;6:600–606.