J M Moreno-Navarrete1, F Ortega1, M Serrano1, J I Rodriguez-Hermosa1, W Ricart1, G Mingrone2, J M Fernández-Real1. 1. Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain. 2. Institute of Internal Medicine, Catholic University of Rome, Rome, Italy.
Abstract
OBJECTIVE: FSP27 KO mice showed enhanced expression of mitochondrial genes, increased mitochondrial activity and smaller lipid droplets. Here, we aimed to investigate lipid droplet protein (CIDEC/FSP27 and perilipinA (PLIN1)) gene expression in human adipose tissue in association with obesity, insulin resistance and mitochondrial gene expression. DESIGN AND SUBJECTS: In cohort 1, CIDEC/FSP27, PLIN1, adipogenic (FASN, ACACA, PPARG, GLUT4) and mitochondrial (PPARGC1A, PPARGC1B, TFAM, MT-CO3) gene expression were analyzed in 171 adipose tissue samples (88 visceral adipose tissue (VAT) and 83 subcutaneous adipose tissue (SAT) depots) and in a time course experiment in human subcutaneous and visceral preadipocytes using real-time PCR. In cohort 2, the effects of bariatric surgery-induced weight loss were also evaluated in six caucasian morbidly obese women. Additionally, in cohort 2 FSP27 and PLIN1 protein levels were measured using western blotting. RESULTS: CIDEC/FSP27 (1.03±0.52 vs 0.49±0.23 relative gene expression unit (R.U.), P<0.0001) and PLIN1 (1.32±0.82 vs 0.63±0.42 R.U., P<0.0001) gene were significantly more expressed in SAT than in VAT. In VAT, CIDEC/FSP27 and PLIN1 gene expression decreased with body mass index, percent fat mass, fasting glucose, fasting insulin, HOMA and were positively associated with adipogenic (PPARG, GLUT4, FASN and ACACA) and mitochondrial biogenesis (PPARGC1A, PPARGC1B, TFAM and MT-CO3)-related genes. Mitochondrial gene expression increased during adipocyte differentiation in parallel to FSP27 and PLIN1 and other adipogenic genes. After bariatric surgery-induced weight loss, PLIN1 and CIDEC/FSP27 gene and protein expression in SAT increased significantly in parallel to adipogenic and mitochondrial genes. CONCLUSION: These findings suggest a positive functional interaction between CIDEC/FSP27, PLIN1 and mitochondrial biogenesis-related genes in human adipose tissue.
OBJECTIVE:FSP27 KO mice showed enhanced expression of mitochondrial genes, increased mitochondrial activity and smaller lipid droplets. Here, we aimed to investigate lipid droplet protein (CIDEC/FSP27 and perilipinA (PLIN1)) gene expression in human adipose tissue in association with obesity, insulin resistance and mitochondrial gene expression. DESIGN AND SUBJECTS: In cohort 1, CIDEC/FSP27, PLIN1, adipogenic (FASN, ACACA, PPARG, GLUT4) and mitochondrial (PPARGC1A, PPARGC1B, TFAM, MT-CO3) gene expression were analyzed in 171 adipose tissue samples (88 visceral adipose tissue (VAT) and 83 subcutaneous adipose tissue (SAT) depots) and in a time course experiment in human subcutaneous and visceral preadipocytes using real-time PCR. In cohort 2, the effects of bariatric surgery-induced weight loss were also evaluated in six caucasian morbidly obesewomen. Additionally, in cohort 2 FSP27 and PLIN1 protein levels were measured using western blotting. RESULTS:CIDEC/FSP27 (1.03±0.52 vs 0.49±0.23 relative gene expression unit (R.U.), P<0.0001) and PLIN1 (1.32±0.82 vs 0.63±0.42 R.U., P<0.0001) gene were significantly more expressed in SAT than in VAT. In VAT, CIDEC/FSP27 and PLIN1 gene expression decreased with body mass index, percent fat mass, fasting glucose, fasting insulin, HOMA and were positively associated with adipogenic (PPARG, GLUT4, FASN and ACACA) and mitochondrial biogenesis (PPARGC1A, PPARGC1B, TFAM and MT-CO3)-related genes. Mitochondrial gene expression increased during adipocyte differentiation in parallel to FSP27 and PLIN1 and other adipogenic genes. After bariatric surgery-induced weight loss, PLIN1 and CIDEC/FSP27 gene and protein expression in SAT increased significantly in parallel to adipogenic and mitochondrial genes. CONCLUSION: These findings suggest a positive functional interaction between CIDEC/FSP27, PLIN1 and mitochondrial biogenesis-related genes in human adipose tissue.
Authors: Olga T Hardy; Richard A Perugini; Sarah M Nicoloro; Karen Gallagher-Dorval; Vishwajeet Puri; Juerg Straubhaar; Michael P Czech Journal: Surg Obes Relat Dis Date: 2010-06-01 Impact factor: 4.734
Authors: Kirsi A Virtanen; Peter Lönnroth; Riitta Parkkola; Pauliina Peltoniemi; Markku Asola; Tapio Viljanen; Tuula Tolvanen; Juhani Knuuti; Tapani Rönnemaa; Risto Huupponen; Pirjo Nuutila Journal: J Clin Endocrinol Metab Date: 2002-08 Impact factor: 5.958
Authors: Natalia Moreno-Castellanos; Rocío Guzmán-Ruiz; David A Cano; Ainara Madrazo-Atutxa; Juan R Peinado; Jose L Pereira-Cunill; Pedro Pablo García-Luna; Salvador Morales-Conde; Maria Socas-Macias; Rafael Vázquez-Martínez; Alfonso Leal-Cerro; María M Malagón Journal: Obes Surg Date: 2016-08 Impact factor: 4.129
Authors: Elena Tarabra; Jessica Nouws; Alla Vash-Margita; Geoffrey S Nadzam; Rachel Goldberg; Michelle Van Name; Bridget Pierpont; James R Knight; Gerald I Shulman; Sonia Caprio Journal: JCI Insight Date: 2020-03-26