Empagliflozin suppresses urinary mitochondrial DNA copy numbers and interleukin-1β in type 2 diabetes patients

Abstract Sodium-glucose co-transporter 2 (SGLT2) inhibitors improve cardiovascular and renal outcomes in type 2 diabetes mellitus (T2DM) patients. However, the mechanisms by which SGLT2 inhibitors improve the clinical outcomes remain elusive. We evaluated whether empagliflozin, an SGLT2 inhibitor, a...

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Main Authors: Haekyung Lee, Hyoungnae Kim, Jin Seok Jeon, Hyunjin Noh, Rojin Park, Dong Won Byun, Hye Jeong Kim, Kyoil Suh, Hyeong Kyu Park, Soon Hyo Kwon
Format: Article
Language:English
Published: Nature Portfolio 2022-11-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-22083-6
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author Haekyung Lee
Hyoungnae Kim
Jin Seok Jeon
Hyunjin Noh
Rojin Park
Dong Won Byun
Hye Jeong Kim
Kyoil Suh
Hyeong Kyu Park
Soon Hyo Kwon
author_facet Haekyung Lee
Hyoungnae Kim
Jin Seok Jeon
Hyunjin Noh
Rojin Park
Dong Won Byun
Hye Jeong Kim
Kyoil Suh
Hyeong Kyu Park
Soon Hyo Kwon
author_sort Haekyung Lee
collection DOAJ
description Abstract Sodium-glucose co-transporter 2 (SGLT2) inhibitors improve cardiovascular and renal outcomes in type 2 diabetes mellitus (T2DM) patients. However, the mechanisms by which SGLT2 inhibitors improve the clinical outcomes remain elusive. We evaluated whether empagliflozin, an SGLT2 inhibitor, ameliorates mitochondrial dysfunction and inflammatory milieu of the kidneys in T2DM patients. We prospectively measured copy numbers of urinary and serum mitochondrial DNA (mtDNA) nicotinamide adenine dinucleotide dehydrogenase subunit-1 (mtND-1) and cytochrome-c oxidase 3 (mtCOX-3) and urinary interleukin-1β (IL-1β) in healthy volunteers (n = 22), in SGLT2 inhibitor-naïve T2DM patients (n = 21) at baseline, and in T2DM patients after 3 months of treatment with empagliflozin (10 mg, n = 17 or 25 mg, n = 4). Both urinary mtDNA copy numbers and IL-1β levels were higher in the T2DM group than in healthy volunteers. Baseline copy numbers of serum mtCOX-3 in the T2DM group were lower than those in healthy volunteers. Empagliflozin induced marked reduction in both urinary and serum mtND-1 and mtCOX-3 copy numbers, as well as in urinary IL-1β. Empagliflozin could attenuate mitochondrial damage and inhibit inflammatory response in T2DM patients. This would explain the beneficial effects of SGLT2 inhibitors on cardiovascular and renal outcomes.
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spelling doaj.art-94cb54a70e6c444facc2b773d7f7a4cf2022-12-22T04:14:24ZengNature PortfolioScientific Reports2045-23222022-11-0112111010.1038/s41598-022-22083-6Empagliflozin suppresses urinary mitochondrial DNA copy numbers and interleukin-1β in type 2 diabetes patientsHaekyung Lee0Hyoungnae Kim1Jin Seok Jeon2Hyunjin Noh3Rojin Park4Dong Won Byun5Hye Jeong Kim6Kyoil Suh7Hyeong Kyu Park8Soon Hyo Kwon9Division of Nephrology, Department of Internal Medicine, Soonchunhyang University Seoul HospitalDivision of Nephrology, Department of Internal Medicine, Soonchunhyang University Seoul HospitalDivision of Nephrology, Department of Internal Medicine, Soonchunhyang University Seoul HospitalDivision of Nephrology, Department of Internal Medicine, Soonchunhyang University Seoul HospitalDepartment of Laboratory Medicine, Soonchunhyang University Seoul HospitalDivision of Endocrinology and Metabolism, Department of Internal Medicine, Soonchunhyang University Seoul HospitalDivision of Endocrinology and Metabolism, Department of Internal Medicine, Soonchunhyang University Seoul HospitalDivision of Endocrinology and Metabolism, Department of Internal Medicine, Soonchunhyang University Seoul HospitalDivision of Endocrinology and Metabolism, Department of Internal Medicine, Soonchunhyang University Seoul HospitalDivision of Nephrology, Department of Internal Medicine, Soonchunhyang University Seoul HospitalAbstract Sodium-glucose co-transporter 2 (SGLT2) inhibitors improve cardiovascular and renal outcomes in type 2 diabetes mellitus (T2DM) patients. However, the mechanisms by which SGLT2 inhibitors improve the clinical outcomes remain elusive. We evaluated whether empagliflozin, an SGLT2 inhibitor, ameliorates mitochondrial dysfunction and inflammatory milieu of the kidneys in T2DM patients. We prospectively measured copy numbers of urinary and serum mitochondrial DNA (mtDNA) nicotinamide adenine dinucleotide dehydrogenase subunit-1 (mtND-1) and cytochrome-c oxidase 3 (mtCOX-3) and urinary interleukin-1β (IL-1β) in healthy volunteers (n = 22), in SGLT2 inhibitor-naïve T2DM patients (n = 21) at baseline, and in T2DM patients after 3 months of treatment with empagliflozin (10 mg, n = 17 or 25 mg, n = 4). Both urinary mtDNA copy numbers and IL-1β levels were higher in the T2DM group than in healthy volunteers. Baseline copy numbers of serum mtCOX-3 in the T2DM group were lower than those in healthy volunteers. Empagliflozin induced marked reduction in both urinary and serum mtND-1 and mtCOX-3 copy numbers, as well as in urinary IL-1β. Empagliflozin could attenuate mitochondrial damage and inhibit inflammatory response in T2DM patients. This would explain the beneficial effects of SGLT2 inhibitors on cardiovascular and renal outcomes.https://doi.org/10.1038/s41598-022-22083-6
spellingShingle Haekyung Lee
Hyoungnae Kim
Jin Seok Jeon
Hyunjin Noh
Rojin Park
Dong Won Byun
Hye Jeong Kim
Kyoil Suh
Hyeong Kyu Park
Soon Hyo Kwon
Empagliflozin suppresses urinary mitochondrial DNA copy numbers and interleukin-1β in type 2 diabetes patients
Scientific Reports
title Empagliflozin suppresses urinary mitochondrial DNA copy numbers and interleukin-1β in type 2 diabetes patients
title_full Empagliflozin suppresses urinary mitochondrial DNA copy numbers and interleukin-1β in type 2 diabetes patients
title_fullStr Empagliflozin suppresses urinary mitochondrial DNA copy numbers and interleukin-1β in type 2 diabetes patients
title_full_unstemmed Empagliflozin suppresses urinary mitochondrial DNA copy numbers and interleukin-1β in type 2 diabetes patients
title_short Empagliflozin suppresses urinary mitochondrial DNA copy numbers and interleukin-1β in type 2 diabetes patients
title_sort empagliflozin suppresses urinary mitochondrial dna copy numbers and interleukin 1β in type 2 diabetes patients
url https://doi.org/10.1038/s41598-022-22083-6
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