Urocortin 3 Levels Are Impaired in Overweight Humans With and Without Type 2 Diabetes and Modulated by Exercise

Urocortin3 (UCN3) regulates metabolic functions and is involved in cellular stress response. Although UCN3 is expressed in human adipose tissue, the association of UCN3 with obesity and diabetes remains unclear. This study investigated the effects of Type 2 diabetes (T2D) and increased body weight o...

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Main Authors: Sina Kavalakatt, Abdelkrim Khadir, Dhanya Madhu, Maha Hammad, Sriraman Devarajan, Jehad Abubaker, Fahd Al-Mulla, Jaakko Tuomilehto, Ali Tiss
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-11-01
Series:Frontiers in Endocrinology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fendo.2019.00762/full
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author Sina Kavalakatt
Abdelkrim Khadir
Dhanya Madhu
Maha Hammad
Sriraman Devarajan
Jehad Abubaker
Fahd Al-Mulla
Jaakko Tuomilehto
Jaakko Tuomilehto
Jaakko Tuomilehto
Ali Tiss
author_facet Sina Kavalakatt
Abdelkrim Khadir
Dhanya Madhu
Maha Hammad
Sriraman Devarajan
Jehad Abubaker
Fahd Al-Mulla
Jaakko Tuomilehto
Jaakko Tuomilehto
Jaakko Tuomilehto
Ali Tiss
author_sort Sina Kavalakatt
collection DOAJ
description Urocortin3 (UCN3) regulates metabolic functions and is involved in cellular stress response. Although UCN3 is expressed in human adipose tissue, the association of UCN3 with obesity and diabetes remains unclear. This study investigated the effects of Type 2 diabetes (T2D) and increased body weight on the circulatory and subcutaneous adipose tissue (SAT) levels of UCN3 and assessed UCN3 modulation by a regular physical exercise. Normal-weight (n = 37) and overweight adults with and without T2D (n = 98 and n = 107, respectively) were enrolled in the study. A subset of the overweight subjects (n = 39 for each group) underwent a supervised 3-month exercise program combining both moderate intensity aerobic exercise and resistance training with treadmill. UCN3 levels in SAT were measured by immunofluorescence and RT-PCR. Circulatory UCN3 in plasma was assessed by ELISA and was correlated with various clinical and metabolic markers. Our data revealed that plasma UCN3 levels decreased in overweight subjects without T2D compared with normal-weight controls [median; 11.99 (0.78–86.07) and 6.27 (0.64–77.04), respectively; p < 0.001], whereas plasma UCN3 levels increased with concomitant T2D [median; 9.03 (0.77–104.92) p < 0.001]. UCN3 plasma levels were independently associated with glycemic index; fasting plasma glucose and hemoglobin A1c (r = 0.16 and r = 0.20, p < 0.05, respectively) and were significantly different between both overweight, with and without T2D, and normal-weight individuals (OR = 2.11 [1.84–4.11, 95% CI] and OR = 2.12 [1.59–3.10, 95% CI], p < 0.01, respectively). Conversely, the UCN3 patterns observed in SAT were opposite to those in circulation; UCN3 levels were significantly increased with body weight and decreased with T2D. After a 3-month supervised exercise protocol, UCN3 expression showed a significant reduction in SAT of both overweight groups (2.3 and 1.6-fold change; p < 0.01, respectively). In conclusion, UCN levels are differentially dysregulated in obesity in a tissue-dependent manner and can be mitigated by regular moderate physical exercise.
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spelling doaj.art-49a23bbb2cff475fb4cf043c8a079e6c2022-12-22T01:57:51ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922019-11-011010.3389/fendo.2019.00762471116Urocortin 3 Levels Are Impaired in Overweight Humans With and Without Type 2 Diabetes and Modulated by ExerciseSina Kavalakatt0Abdelkrim Khadir1Dhanya Madhu2Maha Hammad3Sriraman Devarajan4Jehad Abubaker5Fahd Al-Mulla6Jaakko Tuomilehto7Jaakko Tuomilehto8Jaakko Tuomilehto9Ali Tiss10Research Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, KuwaitResearch Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, KuwaitResearch Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, KuwaitResearch Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, KuwaitResearch Division, Dasman Diabetes Institute, Kuwait City, KuwaitResearch Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, KuwaitResearch Division, Dasman Diabetes Institute, Kuwait City, KuwaitResearch Division, Dasman Diabetes Institute, Kuwait City, KuwaitDepartment of Public Health, University of Helsinki, Helsinki, FinlandDepartment of Public Health Solutions, National Institute for Health and Welfare, Helsinki, FinlandResearch Division, Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City, KuwaitUrocortin3 (UCN3) regulates metabolic functions and is involved in cellular stress response. Although UCN3 is expressed in human adipose tissue, the association of UCN3 with obesity and diabetes remains unclear. This study investigated the effects of Type 2 diabetes (T2D) and increased body weight on the circulatory and subcutaneous adipose tissue (SAT) levels of UCN3 and assessed UCN3 modulation by a regular physical exercise. Normal-weight (n = 37) and overweight adults with and without T2D (n = 98 and n = 107, respectively) were enrolled in the study. A subset of the overweight subjects (n = 39 for each group) underwent a supervised 3-month exercise program combining both moderate intensity aerobic exercise and resistance training with treadmill. UCN3 levels in SAT were measured by immunofluorescence and RT-PCR. Circulatory UCN3 in plasma was assessed by ELISA and was correlated with various clinical and metabolic markers. Our data revealed that plasma UCN3 levels decreased in overweight subjects without T2D compared with normal-weight controls [median; 11.99 (0.78–86.07) and 6.27 (0.64–77.04), respectively; p < 0.001], whereas plasma UCN3 levels increased with concomitant T2D [median; 9.03 (0.77–104.92) p < 0.001]. UCN3 plasma levels were independently associated with glycemic index; fasting plasma glucose and hemoglobin A1c (r = 0.16 and r = 0.20, p < 0.05, respectively) and were significantly different between both overweight, with and without T2D, and normal-weight individuals (OR = 2.11 [1.84–4.11, 95% CI] and OR = 2.12 [1.59–3.10, 95% CI], p < 0.01, respectively). Conversely, the UCN3 patterns observed in SAT were opposite to those in circulation; UCN3 levels were significantly increased with body weight and decreased with T2D. After a 3-month supervised exercise protocol, UCN3 expression showed a significant reduction in SAT of both overweight groups (2.3 and 1.6-fold change; p < 0.01, respectively). In conclusion, UCN levels are differentially dysregulated in obesity in a tissue-dependent manner and can be mitigated by regular moderate physical exercise.https://www.frontiersin.org/article/10.3389/fendo.2019.00762/fullurocortinUCN3CRFobesitydiabetesexercise
spellingShingle Sina Kavalakatt
Abdelkrim Khadir
Dhanya Madhu
Maha Hammad
Sriraman Devarajan
Jehad Abubaker
Fahd Al-Mulla
Jaakko Tuomilehto
Jaakko Tuomilehto
Jaakko Tuomilehto
Ali Tiss
Urocortin 3 Levels Are Impaired in Overweight Humans With and Without Type 2 Diabetes and Modulated by Exercise
Frontiers in Endocrinology
urocortin
UCN3
CRF
obesity
diabetes
exercise
title Urocortin 3 Levels Are Impaired in Overweight Humans With and Without Type 2 Diabetes and Modulated by Exercise
title_full Urocortin 3 Levels Are Impaired in Overweight Humans With and Without Type 2 Diabetes and Modulated by Exercise
title_fullStr Urocortin 3 Levels Are Impaired in Overweight Humans With and Without Type 2 Diabetes and Modulated by Exercise
title_full_unstemmed Urocortin 3 Levels Are Impaired in Overweight Humans With and Without Type 2 Diabetes and Modulated by Exercise
title_short Urocortin 3 Levels Are Impaired in Overweight Humans With and Without Type 2 Diabetes and Modulated by Exercise
title_sort urocortin 3 levels are impaired in overweight humans with and without type 2 diabetes and modulated by exercise
topic urocortin
UCN3
CRF
obesity
diabetes
exercise
url https://www.frontiersin.org/article/10.3389/fendo.2019.00762/full
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