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Yi X, Feng M, Zhu J, Yu H, He Z, Zhang Z, Zhao T, Zhang Q, Pang W. Adipocyte Progenitor Pools Composition and Cellular Niches Affect Adipogenesis Divergence in Porcine Subcutaneous and Intramuscular Fat. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38848240 DOI: 10.1021/acs.jafc.4c01044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2024]
Abstract
Intramuscular fat (IMF) contributed positively to pork quality, whereas subcutaneous fat (SCF) was often considered to be a detrimental factor impacting growth and carcass traits. Reducing SCF while maintaining optimal IMF levels requires a thorough understanding of the adipogenic differences between these two adipose depots. Our study explored the differences in adipogenesis between porcine IMF and SCF, and the results showed that subcutaneous adipocytes (SCAs) demonstrate a greater potential for adipogenic differentiation, both in vivo and in vitro. Lipidomic and transcriptomic analyses suggested that intramuscular adipocytes (IMAs) are more inclined to biosynthesize unsaturated fatty acids. Furthermore, single-cell RNA sequencing (scRNA-seq) was employed to dissect the intrinsic and microenvironmental discrepancies in adipogenesis between porcine IMF and SCF. Comparative analysis indicated that SCF was enriched with preadipocytes, exhibiting an enhanced adipogenic potential, while IMF was characterized by a higher abundance of stem cells. Furthermore, coculture analyses of porcine intramuscular adipogenic cells and myogenetic cells indicated that the niche of IMAs inhibited its adipogenic differentiation. Cell communication analysis identified 160 ligand-receptor pairs and channels between adipogenic and myogenetic cells in IMF. Collectively, our study elucidated two intrinsic and microenvironmental novel mechanisms underpinning the divergence in adipogenesis between porcine SCF and IMF.
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Affiliation(s)
- Xudong Yi
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ming Feng
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jiahua Zhu
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - He Yu
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhaozhao He
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ziyi Zhang
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Tiantian Zhao
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Que Zhang
- Department of Animal Science and Technology, Shandong Vocational Animal Science and Veterinary College, Weifang, Shandong 261061, China
| | - Weijun Pang
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
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2
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Shah R, Zhong J, Massier L, Tanriverdi K, Hwang SJ, Haessler J, Nayor M, Zhao S, Perry AS, Wilkins JT, Shadyab AH, Manson JE, Martin L, Levy D, Kooperberg C, Freedman JE, Rydén M, Murthy VL. Targeted Proteomics Reveals Functional Targets for Early Diabetes Susceptibility in Young Adults. CIRCULATION. GENOMIC AND PRECISION MEDICINE 2024; 17:e004192. [PMID: 38323454 PMCID: PMC10940209 DOI: 10.1161/circgen.123.004192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 11/05/2023] [Indexed: 02/08/2024]
Abstract
BACKGROUND The circulating proteome may encode early pathways of diabetes susceptibility in young adults for surveillance and intervention. Here, we define proteomic correlates of tissue phenotypes and diabetes in young adults. METHODS We used penalized models and principal components analysis to generate parsimonious proteomic signatures of diabetes susceptibility based on phenotypes and on diabetes diagnosis across 184 proteins in >2000 young adults in the CARDIA (Coronary Artery Risk Development in Young Adults study; mean age, 32 years; 44% women; 43% Black; mean body mass index, 25.6±4.9 kg/m2), with validation against diabetes in >1800 individuals in the FHS (Framingham Heart Study) and WHI (Women's Health Initiative). RESULTS In 184 proteins in >2000 young adults in CARDIA, we identified 2 proteotypes of diabetes susceptibility-a proinflammatory fat proteotype (visceral fat, liver fat, inflammatory biomarkers) and a muscularity proteotype (muscle mass), linked to diabetes in CARDIA and WHI/FHS. These proteotypes specified broad mechanisms of early diabetes pathogenesis, including transorgan communication, hepatic and skeletal muscle stress responses, vascular inflammation and hemostasis, fibrosis, and renal injury. Using human adipose tissue single cell/nuclear RNA-seq, we demonstrate expression at transcriptional level for implicated proteins across adipocytes and nonadipocyte cell types (eg, fibroadipogenic precursors, immune and vascular cells). Using functional assays in human adipose tissue, we demonstrate the association of expression of genes encoding these implicated proteins with adipose tissue metabolism, inflammation, and insulin resistance. CONCLUSIONS A multifaceted discovery effort uniting proteomics, underlying clinical susceptibility phenotypes, and tissue expression patterns may uncover potentially novel functional biomarkers of early diabetes susceptibility in young adults for future mechanistic evaluation.
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Affiliation(s)
- Ravi Shah
- Vanderbilt Translational & Clinical Cardiovascular Research Center, Vanderbilt Univ, Nashville, TN
| | - Jiawei Zhong
- Dept of Medicine (H7), Karolinska Institutet, Stockholm, Sweden
| | - Lucas Massier
- Dept of Medicine (H7), Karolinska Institutet, Stockholm, Sweden
| | - Kahraman Tanriverdi
- Vanderbilt Translational & Clinical Cardiovascular Research Center, Vanderbilt Univ, Nashville, TN
| | - Shih-Jen Hwang
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | | | - Matthew Nayor
- Sections of Preventive Medicine & Epidemiology & Cardiovascular Medicine, Dept of Medicine, Dept of Epidemiology, Boston University Schools of Medicine & Public Health, Boston, MA & Framingham Heart Study, Framingham, MA
| | | | - Andrew S. Perry
- Vanderbilt Translational & Clinical Cardiovascular Research Center, Vanderbilt Univ, Nashville, TN
| | | | - Aladdin H. Shadyab
- Herbert Wertheim School of Public Health & Human Longevity Science, Univ of California, San Diego, La Jolla, CA
| | - JoAnn E. Manson
- Dept of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Lisa Martin
- George Washington Univ School of Medicine & Health Sciences
| | - Daniel Levy
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | | | - Jane E. Freedman
- Vanderbilt Translational & Clinical Cardiovascular Research Center, Vanderbilt Univ, Nashville, TN
| | - Mikael Rydén
- Dept of Medicine (H7), Karolinska Institutet, Stockholm, Sweden
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3
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Xu D, Wan B, Qiu K, Wang Y, Zhang X, Jiao N, Yan E, Wu J, Yu R, Gao S, Du M, Liu C, Li M, Fan G, Yin J. Single-Cell RNA-Sequencing Provides Insight into Skeletal Muscle Evolution during the Selection of Muscle Characteristics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2305080. [PMID: 37870215 PMCID: PMC10724408 DOI: 10.1002/advs.202305080] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/27/2023] [Indexed: 10/24/2023]
Abstract
Skeletal muscle comprises a large, heterogeneous assortment of cell populations that interact to maintain muscle homeostasis, but little is known about the mechanism that controls myogenic development in response to artificial selection. Different pig (Sus scrofa) breeds exhibit distinct muscle phenotypes resulting from domestication and selective breeding. Using unbiased single-cell transcriptomic sequencing analysis (scRNA-seq), the impact of artificial selection on cell profiles is investigated in neonatal skeletal muscle of pigs. This work provides panoramic muscle-resident cell profiles and identifies novel and breed-specific cells, mapping them on pseudotime trajectories. Artificial selection has elicited significant changes in muscle-resident cell profiles, while conserving signs of generational environmental challenges. These results suggest that fibro-adipogenic progenitors serve as a cellular interaction hub and that specific transcription factors identified here may serve as candidate target regulons for the pursuit of a specific muscle phenotype. Furthermore, a cross-species comparison of humans, mice, and pigs illustrates the conservation and divergence of mammalian muscle ontology. The findings of this study reveal shifts in cellular heterogeneity, novel cell subpopulations, and their interactions that may greatly facilitate the understanding of the mechanism underlying divergent muscle phenotypes arising from artificial selection.
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Affiliation(s)
- Doudou Xu
- State Key Laboratory of Animal Nutrition and feedingCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
| | - Boyang Wan
- State Key Laboratory of Animal Nutrition and feedingCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
| | - Kai Qiu
- State Key Laboratory of Animal Nutrition and feedingCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
| | - Yubo Wang
- State Key Laboratory of Animal Nutrition and feedingCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
| | - Xin Zhang
- State Key Laboratory of Animal Nutrition and feedingCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
- Molecular Design Breeding Frontier Science Center of the Ministry of EducationBeijingChina
| | - Ning Jiao
- State Key Laboratory of Animal Nutrition and feedingCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
| | - Enfa Yan
- State Key Laboratory of Animal Nutrition and feedingCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
| | - Jiangwei Wu
- Key Laboratory of Animal GeneticsBreeding and Reproduction of Shaanxi ProvinceCollege of Animal Science and TechnologyNorthwest A&F UniversityYangling712100China
| | - Run Yu
- Beijing National Day SchoolBeijing100039China
| | - Shuai Gao
- Key Laboratory of Animal GeneticsCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
| | - Min Du
- Nutrigenomics and Growth Biology LaboratoryDepartment of Animal Sciences and School of Molecular BioscienceWashington State UniversityPullmanWA99164USA
| | | | - Mingzhou Li
- Institute of Animal Genetics and BreedingCollege of Animal Science and TechnologySichuan Agricultural UniversityChengdu625014China
| | - Guoping Fan
- Department of Human GeneticsDavid Geffen School of MedicineUniversity of California Los AngelesLos AngelesCA90095USA
| | - Jingdong Yin
- State Key Laboratory of Animal Nutrition and feedingCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China
- Molecular Design Breeding Frontier Science Center of the Ministry of EducationBeijingChina
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4
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Yao X, Chen X, Adam REH, Zhang Z, Ge Y, Li Y, Huang S, Shi Y, Lv P, Wang S, Zhao R, Hao L, Lu Z, Yang X. Higher serum adrenomedullin concentration is associated with an increased risk of gestational diabetes mellitus: A nested case-control study in Wuhan, China. Nutr Res 2022; 107:117-127. [PMID: 36215885 DOI: 10.1016/j.nutres.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 09/01/2022] [Accepted: 09/03/2022] [Indexed: 12/27/2022]
Abstract
Adrenomedullin (ADM) is thought to play a significant role in regulating insulin secretion and glucose metabolism. However, studies on the relationship between ADM and gestational diabetes mellitus (GDM) are limited. We hypothesized that a higher serum ADM concentration would be associated with an increased risk of GDM. Therefore, a nested case-control study of 65 GDM cases and 130 prepregnancy body mass index, age, parity, and gestational age of blood collection-matched controls was conducted to prospectively evaluate the association between circulating ADM concentrations in early pregnancy and the risk of GDM in pregnant women based on the Tongji Birth Cohort. Serum ADM concentrations in the GDM group were higher than those in the control group (2125.04 ± 644.97 vs 1880.76 ± 581.13 pg/mL) (P = .008). Serum ADM concentration was positively associated with the risk of developing GDM (Ptrend < .05). The adjusted odds ratio (OR) comparing the highest tertile of ADM with the lowest was 2.74 (95% CI, 1.17-6.43). The risk of GDM increased by 49% (OR, 1.49; 95% CI, 1.05-2.12) for each SD increment of serum ADM. Moreover, serum ADM concentration was positively correlated with circulating total cholesterol (r = 0.204), triglycerides (r = 0.197), and systolic blood pressure (r = 0.173), but negatively correlated with circulating high-density lipoprotein cholesterol concentration (r = -0.176). Pregnant women with higher serum ADM concentrations have a markedly increased risk of developing GDM. Further studies are warranted to explore the possible thresholds of ADM that increase the risk of GDM and to confirm and elucidate the underlying mechanisms.
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Affiliation(s)
- Xueqiong Yao
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiuzhi Chen
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Rabab Elhadi Hikreldour Adam
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhen Zhang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yanyan Ge
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yan Li
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shanshan Huang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yuxin Shi
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ping Lv
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shanshan Wang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Rui Zhao
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Liping Hao
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhongxin Lu
- Department of Medical Laboratory, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Xuefeng Yang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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5
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Kisielnicka A, Sobalska-Kwapis M, Purzycka-Bohdan D, Nedoszytko B, Zabłotna M, Seweryn M, Strapagiel D, Nowicki RJ, Reich A, Samotij D, Szczęch J, Krasowska D, Bartosińska J, Narbutt J, Lesiak A, Barasińska P, Owczarczyk-Saczonek A, Czerwińska J, Szepietowski JC, Batycka-Baran A, Czajkowski R, Górecka-Sokołowska M, Rudnicka L, Czuwara J, Szczerkowska-Dobosz A. The Analysis of a Genome-Wide Association Study (GWAS) of Overweight and Obesity in Psoriasis. Int J Mol Sci 2022; 23:ijms23137396. [PMID: 35806402 PMCID: PMC9266424 DOI: 10.3390/ijms23137396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 02/07/2023] Open
Abstract
There is evidence that the concomitance of psoriasis and obesity may originate from the interplay between multiple genetic pathways and involve gene−gene interactions. The aim of this study was to compare the genetic background related to obesity among psoriatic patients versus healthy controls by means of a Genome-Wide Association Study (GWAS). A total of 972 psoriatic patients and a total of 5878 healthy donors were enrolled in this study. DNA samples were genotyped for over 500,000 single nucleotide polymorphisms (SNPs) using Infinium CoreExome BeadChips (Illumina, San Diego, CA, USA). Statistical analysis identified eleven signals (p < 1 × 10−5) associated with BMI across the study groups and revealed a varying effect size in each sub-cohort. Seven of the alternative alleles (rs1558902 in the FTO gene, rs696574 in the CALCRL gene, as well as rs10968110, rs4551082, rs4609724, rs9320269, and rs2338833,) are associated with increased BMI among all psoriatic patients and four (rs1556519 in the ITLN2 gene, rs12972098 in the AC003006.7 gene, rs12676670 in the PAG1 gene, and rs1321529) are associated with lower BMI. The results of our study may lead to further insights into the understanding of the pathogenesis of obesity among psoriatic patients.
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Affiliation(s)
- Anna Kisielnicka
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland; (D.P.-B.); (B.N.); (M.Z.); (R.J.N.); (A.S.-D.)
- Correspondence: (A.K.); (M.S.-K.)
| | - Marta Sobalska-Kwapis
- Biobank Laboratory, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-237 Lodz, Poland; (M.S.); (D.S.)
- Correspondence: (A.K.); (M.S.-K.)
| | - Dorota Purzycka-Bohdan
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland; (D.P.-B.); (B.N.); (M.Z.); (R.J.N.); (A.S.-D.)
| | - Bogusław Nedoszytko
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland; (D.P.-B.); (B.N.); (M.Z.); (R.J.N.); (A.S.-D.)
- Invicta Fertility and Reproductive Centre, Molecular Laboratory, 80-850 Gdansk, Poland
| | - Monika Zabłotna
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland; (D.P.-B.); (B.N.); (M.Z.); (R.J.N.); (A.S.-D.)
| | - Michał Seweryn
- Biobank Laboratory, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-237 Lodz, Poland; (M.S.); (D.S.)
| | - Dominik Strapagiel
- Biobank Laboratory, Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-237 Lodz, Poland; (M.S.); (D.S.)
| | - Roman J. Nowicki
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland; (D.P.-B.); (B.N.); (M.Z.); (R.J.N.); (A.S.-D.)
| | - Adam Reich
- Department of Dermatology, Institute of Medical Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland; (A.R.); (D.S.); (J.S.)
| | - Dominik Samotij
- Department of Dermatology, Institute of Medical Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland; (A.R.); (D.S.); (J.S.)
| | - Justyna Szczęch
- Department of Dermatology, Institute of Medical Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland; (A.R.); (D.S.); (J.S.)
| | - Dorota Krasowska
- Department of Dermatology, Venerology and Paediatric Dermatology, Medical University of Lublin, 20-081 Lublin, Poland; (D.K.); (J.B.)
| | - Joanna Bartosińska
- Department of Dermatology, Venerology and Paediatric Dermatology, Medical University of Lublin, 20-081 Lublin, Poland; (D.K.); (J.B.)
| | - Joanna Narbutt
- Department of Dermatology, Pediatric Dermatology and Oncology Clinic, Medical University of Lodz, 90-419 Lodz, Poland; (J.N.); (A.L.); (P.B.)
| | - Aleksandra Lesiak
- Department of Dermatology, Pediatric Dermatology and Oncology Clinic, Medical University of Lodz, 90-419 Lodz, Poland; (J.N.); (A.L.); (P.B.)
| | - Paulina Barasińska
- Department of Dermatology, Pediatric Dermatology and Oncology Clinic, Medical University of Lodz, 90-419 Lodz, Poland; (J.N.); (A.L.); (P.B.)
| | - Agnieszka Owczarczyk-Saczonek
- Chair and Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, Collegium Medicum, University of Warmia and Mazury, 10-229 Olsztyn, Poland; (A.O.-S.); (J.C.)
| | - Joanna Czerwińska
- Chair and Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, Collegium Medicum, University of Warmia and Mazury, 10-229 Olsztyn, Poland; (A.O.-S.); (J.C.)
| | - Jacek C. Szepietowski
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (J.C.S.); (A.B.-B.)
| | - Aleksandra Batycka-Baran
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (J.C.S.); (A.B.-B.)
| | - Rafał Czajkowski
- Department of Dermatology and Venerology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (R.C.); (M.G.-S.)
| | - Magdalena Górecka-Sokołowska
- Department of Dermatology and Venerology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 87-100 Torun, Poland; (R.C.); (M.G.-S.)
| | - Lidia Rudnicka
- Department of Dermatology, Medical University of Warsaw, 02-008 Warsaw, Poland; (L.R.); (J.C.)
| | - Joanna Czuwara
- Department of Dermatology, Medical University of Warsaw, 02-008 Warsaw, Poland; (L.R.); (J.C.)
| | - Aneta Szczerkowska-Dobosz
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland; (D.P.-B.); (B.N.); (M.Z.); (R.J.N.); (A.S.-D.)
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6
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Dai HB, Wang HY, Wang FZ, Qian P, Gao Q, Zhou H, Zhou YB. Adrenomedullin ameliorates palmitic acid-induced insulin resistance through PI3K/Akt pathway in adipocytes. Acta Diabetol 2022; 59:661-673. [PMID: 34978596 DOI: 10.1007/s00592-021-01840-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 12/15/2021] [Indexed: 12/12/2022]
Abstract
AIMS White adipose tissue (WAT) dysfunction has been associated with adipose tissue low-grade inflammation and oxidative stress leading to insulin resistance (IR). Adrenomedullin (ADM), an endogenous active peptide considered as an adipokine, is associated with adipocytes function. METHODS We evaluated the protective effects of ADM against IR in 3T3-L1 adipocytes treated by palmitic acid (PA) and in visceral white adipose tissue (vWAT) of obese rats fed with high-fat diet. RESULTS We found that endogenous protein expressions of ADM and its receptor in PA-treated adipocytes were markedly increased. PA significantly induced impaired insulin signaling by affecting phosphatidylinositol 3-kinase (PI3K)-protein kinase B (Akt) axis and glucose transporter-4 (GLUT-4) levels, whereas ADM pretreatment enhanced insulin signaling PI3K/Akt and GLUT-4 membrane protein levels, decreased pro-inflammatory cytokines tumor necrosis factor α (TNFα), interleukin-1β (IL-1β) and IL-6 levels, and improved oxidative stress accompanied with reduced reactive oxygen species (ROS) levels and increased anti-oxidant enzymes manganese superoxide dismutase 2 (SOD2), glutathione peroxidase (GPx1) and catalase (CAT) protein expressions. Furthermore, ADM treatment not only improved IR in obese rats, but also effectively restored insulin signaling, and reduced inflammation and oxidative stress in vWAT of obese rats. CONCLUSIONS This study demonstrates a prevention potential of ADM against obesity-related metabolic disorders, due to its protective effects against IR, inflammation and oxidative stress in adipocytes.
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Affiliation(s)
- Hang-Bing Dai
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Hong-Yu Wang
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Fang-Zheng Wang
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Pei Qian
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Qing Gao
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Hong Zhou
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China
| | - Ye-Bo Zhou
- Department of Physiology, Nanjing Medical University, 101 Longmian Road, Nanjing, 211166, Jiangsu, China.
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7
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Pennington KA, Dong Y, Ruano SH, van der Walt N, Sangi-Haghpeykar H, Yallampalli C. Brief high fat high sugar diet results in altered energy and fat metabolism during pregnancy in mice. Sci Rep 2020; 10:20866. [PMID: 33257770 PMCID: PMC7705687 DOI: 10.1038/s41598-020-77529-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 11/10/2020] [Indexed: 11/09/2022] Open
Abstract
During pregnancy several maternal adaptations occur in order to support the growing fetus which are further exacerbated by gestational diabetes mellitus (GDM). Previously we developed a mouse model of GDM, however we did not evaluate alterations to energy and fat metabolism. We have also shown that alterations in lipid metabolism are mediated by adrenomedullin (ADM) in normal and GDM pregnancies. Our objectives were: (1) evaluate energy and fat homeostasis in our GDM mouse model and (2) determine if ADM may play a role in these changes. Female mice were placed on either control (P-CD) or high fat, high sucrose diet (P-HFHS) 1 week prior to and throughout pregnancy. Mice were placed into comprehensive lab animal monitoring system (CLAMS) chambers throughout pregnancy. Visceral adipose tissue (VAT) was collected at d17.5 of pregnancy for analysis. Energy Expenditure was significantly increased (p < 0.05) in P-HFHS dams compared to all other groups. VAT ex-vivo lipolysis was increased (p < 0.05) in P-HFHS compared to P-CD dams. VAT gene expression of ADM receptors Crlr, Ramp2, and Ramp3 was increased (p < 0.05) in P-HFHS dams. ADM dose dependently increased ex vivo lipolysis. This data further validates our animal model of GDM and is usefulness in investigating the pathophysiology of GDM.
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Affiliation(s)
- Kathleen A Pennington
- Basic Sciences Perinatology Research Laboratories, Department of Obstetrics and Gynecology, Baylor College of Medicine, 1102 Bates Street, Room #1850.36, Houston, TX, 77030, USA.
| | - Yuanlin Dong
- Basic Sciences Perinatology Research Laboratories, Department of Obstetrics and Gynecology, Baylor College of Medicine, 1102 Bates Street, Room #1850.36, Houston, TX, 77030, USA
| | - Simone Hernandez Ruano
- Basic Sciences Perinatology Research Laboratories, Department of Obstetrics and Gynecology, Baylor College of Medicine, 1102 Bates Street, Room #1850.36, Houston, TX, 77030, USA
| | - Nicola van der Walt
- Basic Sciences Perinatology Research Laboratories, Department of Obstetrics and Gynecology, Baylor College of Medicine, 1102 Bates Street, Room #1850.36, Houston, TX, 77030, USA
| | - Haleh Sangi-Haghpeykar
- Basic Sciences Perinatology Research Laboratories, Department of Obstetrics and Gynecology, Baylor College of Medicine, 1102 Bates Street, Room #1850.36, Houston, TX, 77030, USA
| | - Chandrasekhar Yallampalli
- Basic Sciences Perinatology Research Laboratories, Department of Obstetrics and Gynecology, Baylor College of Medicine, 1102 Bates Street, Room #1850.36, Houston, TX, 77030, USA
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8
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Kong F, Li L, Du Y, Zhu H, Li Z, Kong X. Exosomal adrenomedullin derived from cancer-associated fibroblasts promotes lipolysis in adipose tissue. Gut 2018; 67:2226-2227. [PMID: 29247064 DOI: 10.1136/gutjnl-2017-315778] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 12/07/2017] [Indexed: 12/08/2022]
Affiliation(s)
- Fanyang Kong
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Lei Li
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Yiqi Du
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Huiyun Zhu
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhaoshen Li
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xiangyu Kong
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
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9
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Mid-regional-pro-adrenomedullin plasma levels are increased in obese adolescents. Eur J Nutr 2015; 55:1255-60. [PMID: 26018656 DOI: 10.1007/s00394-015-0938-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 05/20/2015] [Indexed: 10/23/2022]
Abstract
PURPOSE Recently, adrenomedullin (ADM) was defined as a new member of the adipokine family. ADM secreted by adipocytes, through its vasodilator and antioxidant actions, might be protective against metabolic syndrome-associated cardiovascular complications. The aim of the study was to assess plasma mid-regional (MR)-proADM levels in obese adolescents compared to normal-weight subjects and its relation with BMI, body composition and metabolic indices. METHODS Plasma MR-proADM was measured in 32 healthy adolescents [BMI z-score (mean ± SEM) = 0.6 ± 0.09 and 0.8 ± 0.07 in females and males, respectively] and in 51 age-matched obese adolescents [BMI z-score (mean ± SEM) = 2.8 ± 0.12 and 2.9 ± 0.08 in female and males, respectively] by a time-resolved amplified cryptate emission technology assay. RESULTS Plasma MR-proADM levels resulted significantly higher in obese than in normal-weight adolescents (MR-proADM: 0.33 ± 0.1 vs 0.40 ± 0.1 nmol/L, p < 0.0001). Using univariate analysis, we observed that MR-proADM correlated significantly with BMI z-score (p < 0.0001), fat mass (p < 0.0001), circulating insulin (p < 0.004), HOMA-IR (p < 0.005), total cholesterol (p < 0.03) and LDL-cholesterol (p < 0.05). Including MR-proADM as response variable and its significant correlates into a multiple regression analysis, we observed that fat mass (p = 0.014) and BMI z-score (p = 0.036) were independent determinants of circulating MR-proADM. CONCLUSIONS Our study shows for the first time that obese adolescents have higher circulating levels of MR-proADM compared with normal-weight, appropriate controls suggesting its important involvement in obese patients.
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10
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Aguilera CM, Gomez-Llorente C, Tofe I, Gil-Campos M, Cañete R, Gil Á. Genome-wide expression in visceral adipose tissue from obese prepubertal children. Int J Mol Sci 2015; 16:7723-37. [PMID: 25856673 PMCID: PMC4425045 DOI: 10.3390/ijms16047723] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 03/19/2015] [Accepted: 04/01/2015] [Indexed: 02/07/2023] Open
Abstract
Characterization of the genes expressed in adipose tissue (AT) is key to understanding the pathogenesis of obesity and to developing treatments for this condition. Our objective was to compare the gene expression in visceral AT (VAT) between obese and normal-weight prepubertal children. A total of fifteen obese and sixteen normal-weight children undergoing abdominal elective surgery were selected. RNA was extracted from VAT biopsies. Microarray experiments were independently performed for each sample (six obese and five normal-weight samples). Validation by quantitative PCR (qPCR) was performed on an additional 10 obese and 10 normal-weight VAT samples. Of 1276 differentially expressed genes (p < 0.05), 245 were more than two-fold higher in obese children than in normal-weight children. As validated by qPCR, expression was upregulated in genes involved in lipid and amino acid metabolism (CES1, NPRR3 and BHMT2), oxidative stress and extracellular matrix regulation (TNMD and NQO1), adipogenesis (CRYAB and AFF1) and inflammation (ANXA1); by contrast, only CALCRL gene expression was confirmed to be downregulated. In conclusion, this study in prepubertal children demonstrates the up- and down-regulation of genes that encode molecules that were previously proposed to influence the pathogenesis of adulthood obesity, as well as previously unreported dysregulated genes that may be candidate genes in the aetiology of obesity.
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Affiliation(s)
- Concepción M Aguilera
- Department of Biochemistry and Molecular Biology II, Institute of Nutrition and Food Technology, Centre for Biomedical Research, University of Granada, Armilla, 18100 Granada, Spain.
| | - Carolina Gomez-Llorente
- Department of Biochemistry and Molecular Biology II, Institute of Nutrition and Food Technology, Centre for Biomedical Research, University of Granada, Armilla, 18100 Granada, Spain.
| | - Inés Tofe
- Unit of Pediatric Endocrinology, Reina Sofia University Hospital, Avda Menéndez Pidal s/n. 14004 Córdoba, Spain.
| | - Mercedes Gil-Campos
- Unit of Pediatric Endocrinology, Reina Sofia University Hospital, Avda Menéndez Pidal s/n. 14004 Córdoba, Spain.
| | - Ramón Cañete
- Unit of Pediatric Endocrinology, Reina Sofia University Hospital, Avda Menéndez Pidal s/n. 14004 Córdoba, Spain.
| | - Ángel Gil
- Department of Biochemistry and Molecular Biology II, Institute of Nutrition and Food Technology, Centre for Biomedical Research, University of Granada, Armilla, 18100 Granada, Spain.
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11
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Proteomics analysis reveals IGFBP2 as a candidate diagnostic biomarker for heart failure. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.ijcme.2014.11.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Guzmán S, Marin S, Miranda A, Selivanov VA, Centelles JJ, Harmancey R, Smih F, Turkieh A, Durocher Y, Zorzano A, Rouet P, Cascante M. (13)C metabolic flux analysis shows that resistin impairs the metabolic response to insulin in L6E9 myotubes. BMC SYSTEMS BIOLOGY 2014; 8:109. [PMID: 25217974 PMCID: PMC4363945 DOI: 10.1186/s12918-014-0109-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 08/29/2014] [Indexed: 12/11/2022]
Abstract
Background It has been suggested that the adipokine resistin links obesity and insulin resistance, although how resistin acts on muscle metabolism is controversial. We aimed to quantitatively analyse the effects of resistin on the glucose metabolic flux profile and on insulin response in L6E9 myotubes at the metabolic level using a tracer-based metabolomic approach and our in-house developed software, Isodyn. Results Resistin significantly increased glucose uptake and glycolysis, altering pyruvate utilisation by the cell. In the presence of resistin, insulin only slightly increased glucose uptake and glycolysis, and did not alter the flux profile around pyruvate induced by resistin. Resistin prevented the increase in gene expression in pyruvate dehydrogenase-E1 and the sharp decrease in gene expression in cytosolic phosphoenolpyruvate carboxykinase-1 induced by insulin. Conclusions These data suggest that resistin impairs the metabolic activation of insulin. This impairment cannot be explained by the activity of a single enzyme, but instead due to reorganisation of the whole metabolic flux distribution.
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Affiliation(s)
- Shirley Guzmán
- Department of Biochemistry and Molecular Biology, Faculty of Biology, Universitat de Barcelona, Av Diagonal 643, 08028, Barcelona, Spain. .,Institute of Biomedicine of Universitat de Barcelona (IBUB) and CSIC-Associated Unit, Barcelona, Spain.
| | - Silvia Marin
- Department of Biochemistry and Molecular Biology, Faculty of Biology, Universitat de Barcelona, Av Diagonal 643, 08028, Barcelona, Spain. .,Institute of Biomedicine of Universitat de Barcelona (IBUB) and CSIC-Associated Unit, Barcelona, Spain.
| | - Anibal Miranda
- Department of Biochemistry and Molecular Biology, Faculty of Biology, Universitat de Barcelona, Av Diagonal 643, 08028, Barcelona, Spain. .,Institute of Biomedicine of Universitat de Barcelona (IBUB) and CSIC-Associated Unit, Barcelona, Spain.
| | - Vitaly A Selivanov
- Department of Biochemistry and Molecular Biology, Faculty of Biology, Universitat de Barcelona, Av Diagonal 643, 08028, Barcelona, Spain. .,Institute of Biomedicine of Universitat de Barcelona (IBUB) and CSIC-Associated Unit, Barcelona, Spain.
| | - Josep J Centelles
- Department of Biochemistry and Molecular Biology, Faculty of Biology, Universitat de Barcelona, Av Diagonal 643, 08028, Barcelona, Spain. .,Institute of Biomedicine of Universitat de Barcelona (IBUB) and CSIC-Associated Unit, Barcelona, Spain.
| | - Romain Harmancey
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1048, Toulouse, France. .,Université Toulouse III Paul-Sabatier, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Equipe n°7, Toulouse, France.
| | - Fatima Smih
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1048, Toulouse, France. .,Université Toulouse III Paul-Sabatier, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Equipe n°7, Toulouse, France.
| | - Annie Turkieh
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1048, Toulouse, France. .,Université Toulouse III Paul-Sabatier, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Equipe n°7, Toulouse, France.
| | - Yves Durocher
- Animal Cell Technology Group, Biotechnology Research Institute, National Research Council Canada, Montreal, QC, Canada.
| | - Antonio Zorzano
- Department of Biochemistry and Molecular Biology, Faculty of Biology, Universitat de Barcelona, Av Diagonal 643, 08028, Barcelona, Spain. .,Institute for Research in Biomedicine (IRB Barcelona) and CIBER of Diabetes and Associated Metabolic Diseases (CIBERDEM), Barcelona, Spain.
| | - Philippe Rouet
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1048, Toulouse, France. .,Université Toulouse III Paul-Sabatier, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Equipe n°7, Toulouse, France.
| | - Marta Cascante
- Department of Biochemistry and Molecular Biology, Faculty of Biology, Universitat de Barcelona, Av Diagonal 643, 08028, Barcelona, Spain. .,Institute of Biomedicine of Universitat de Barcelona (IBUB) and CSIC-Associated Unit, Barcelona, Spain.
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13
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Sahin I, Celik O, Celik N, Keskin L, Dogru A, Dogru I, Yürekli M, Yologlu S. Adrenomedullin: possible predictor of insulin resistance in women with polycystic ovary syndrome. J Endocrinol Invest 2012; 35:553-6. [PMID: 21791966 DOI: 10.3275/7872] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The aim of the study was to investigate adrenomedullin (ADM) levels and its relation with insulin resistance in women with polycystic ovary syndrome (PCOS). Twenty-nine women with PCOS and 29 age- and body mass index (BMI)- matched control subjects were included in the study. PCOS was defined according to criteria by the Rotterdam European Society of Human Reproduction and Embryology/American Society for Reproductive Medicine (ESHRE/ASRM)-sponsored PCOS consensus workshop group. A full clinical and biochemical examination including basal hormones and metabolic profile was performed. Insulin resistance was calculated by using the homeostasis model assessment of insulin resistance index (HOMA-IR). Plasma ADM levels were measured by high performance liquid chromatographic (HPLC) method. Plasma ADM, fasting insulin levels and HOMA-IR were significantly higher in patients with PCOS than the control group. ADM levels were positively correlated with insulin levels and HOMA-IR index. The best cut-off value of ADM levels to identify the presence of insulin resistance (HOMA-IR≥2.7) was 30.44 ng/ml. Calculated odds ratio of insulin resistance by using logistic regression analysis, as predicted by ADM, was 0.15 (95% confidence interval, 0.037-0.628; p=0.009). In multiple regression analysis, ADM level was an independent predictor of HOMA-IR index. Our finding indicated that ADM levels increased in women with PCOS in accordance with HOMA-IR. ADM could be a significant independent determinant of insulin resistance in women with PCOS.
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Affiliation(s)
- I Sahin
- Endocrinology and Metabolism, Inönü University, Malatya, Turkey.
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14
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Hisaoka M, Matsuyama A, Nakamoto M. Aberrant calreticulin expression is involved in the dedifferentiation of dedifferentiated liposarcoma. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 180:2076-83. [PMID: 22429966 DOI: 10.1016/j.ajpath.2012.01.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2011] [Revised: 12/28/2011] [Accepted: 01/20/2012] [Indexed: 11/19/2022]
Abstract
Liposarcomas are a representative group of soft tissue sarcomas with variably hampered adipogenesis, which is most exemplified by its dedifferentiated subtype. However, the factor(s) responsible for inhibiting adipocyte differentiation remains unknown. A recent gene expression profiling study identified several unique genes that were highly expressed in dedifferentiated liposarcoma, and the gene encoding calreticulin (CALR), a major Ca(2+)-buffering protein that can inhibit adipocyte differentiation, was found to be overexpressed. Thus, we investigated the expression of calreticulin in 45 cases of liposarcomas, including 15 dedifferentiated tumors, at both the protein and mRNA levels. Immunohistochemically, calreticulin was consistently expressed in the dedifferentiated areas of dedifferentiated liposarcomas and commonly observed in atypical stromal cells and/or lipoblasts in the well-differentiated areas (87%), whereas large vacuolated adipocytic cells in either the tumors or normal fat were essentially negative. These results were further supported by the findings of Western blot and quantitative RT-PCR analyses. Although abnormalities in 19p13.1-13.2 where CALR is localized were uncommon in the dedifferentiated liposarcomas examined by fluorescence in situ hybridization, expression of miR-1257, a putative microRNA that targets calreticulin, was suppressed in the dedifferentiated subtype. The down-regulation of calreticulin by small-interfering RNA could induce adipogenesis in dedifferentiated liposarcoma cells and reduce cell proliferation. Our results therefore suggest that aberrantly expressed calreticulin in dedifferentiated liposarcoma is involved in its dedifferenitation and/or tumor progression.
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Affiliation(s)
- Masanori Hisaoka
- Department of Pathology and Oncology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
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15
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Geiger K, Leiherer A, Muendlein A, Stark N, Geller-Rhomberg S, Saely CH, Wabitsch M, Fraunberger P, Drexel H. Identification of hypoxia-induced genes in human SGBS adipocytes by microarray analysis. PLoS One 2011; 6:e26465. [PMID: 22039494 PMCID: PMC3198480 DOI: 10.1371/journal.pone.0026465] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Accepted: 09/27/2011] [Indexed: 01/04/2023] Open
Abstract
Hypoxia in adipose tissue is suggested to be involved in the development of a chronic mild inflammation, which in obesity can further lead to insulin resistance. The effect of hypoxia on gene expression in adipocytes appears to play a central role in this inflammatory response observed in obesity. However, the global impact of hypoxia on transcriptional changes in human adipocytes is unclear. Therefore, we compared gene expression profiles of human Simpson-Golabi-Behmel syndrome (SGBS) adipocytes under normoxic or hypoxic conditions to detect hypoxia-responsive genes in adipocytes by using whole human genome microarrays. Microarray analysis showed more than 500 significantly differentially regulated mRNAs after incubation of the cells under low oxygen levels. To gain further insight into the biological processes, hypoxia-regulated genes after 16 hours of hypoxia were classified according to their function. We identified an enrichment of genes involved in important biological processes such as glycolysis, response to hypoxia, regulation of cellular component movement, response to nutrient levels, regulation of cell migration, and transcription regulator activity. Real-time PCR confirmed eight genes to be consistently upregulated in response to 3, 6 and 16 hours of hypoxia. For adipocytes the hypoxia-induced regulation of these genes is shown here for the first time. Moreover in six of these eight genes we identified HIF response elements in the proximal promoters, specific for the HIF transcription factor family members HIF1A and HIF2A. In the present study, we demonstrated that hypoxia has an extensive effect on gene expression of SGBS adipocytes. In addition, the identified hypoxia-regulated genes are likely involved in the regulation of obesity, the incidence of type 2 diabetes, and the metabolic syndrome.
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Affiliation(s)
- Kathrin Geiger
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Principality of Liechtenstein
| | - Andreas Leiherer
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Principality of Liechtenstein
- Medical Central Laboratories, Feldkirch, Austria
| | - Axel Muendlein
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Principality of Liechtenstein
| | - Nicole Stark
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Principality of Liechtenstein
| | - Simone Geller-Rhomberg
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Principality of Liechtenstein
| | - Christoph H. Saely
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Department of Medicine and Cardiology, Academic Teaching Hospital Feldkirch, Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Principality of Liechtenstein
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, University of Ulm, Ulm, Germany
| | | | - Heinz Drexel
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
- Department of Medicine and Cardiology, Academic Teaching Hospital Feldkirch, Feldkirch, Austria
- Private University of the Principality of Liechtenstein, Triesen, Principality of Liechtenstein
- Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
- * E-mail:
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Ong KL, Tso AWK, Leung RYH, Cherny SS, Sham PC, Lam TH, Cheung BMY, Lam KSL. A genetic variant in the gene encoding adrenomedullin predicts the development of dysglycemia over 6.4 years in Chinese. Clin Chim Acta 2010; 412:353-7. [PMID: 21075100 DOI: 10.1016/j.cca.2010.11.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2010] [Revised: 11/04/2010] [Accepted: 11/04/2010] [Indexed: 12/20/2022]
Abstract
BACKGROUND Adrenomedullin, a vasodilatory peptide, facilitates the differentiation of pre-adipocytes, and affects lipolysis and glucose uptake. We investigated the association of common single nucleotide polymorphisms (SNPs) in the gene encoding adrenomedullin (ADM) with dysglycemia in the Hong Kong Chinese population. METHODS Four SNPs were genotyped in 1391 subjects without dysglycemia at baseline from the Hong Kong Cardiovascular Risk Factor Prevalence Study-2, which had a median follow-up time of 6.4 years. Dysglycemia included impaired fasting glucose, impaired glucose tolerance, and diabetes according to the WHO 1998 criteria. At follow-up, 382 subjects had developed dysglycemia. RESULTS In stepwise logistic regression, the SNP rs11042725 was a significant independent predictor of the development of dysglycemia (OR=1.31, P=0.012), together with baseline age (P<0.001), plasma triglycerides (P<0.001), body mass index (P=0.004), 2-h glucose after oral glucose tolerance test (P<0.001), homeostasis model assessment of insulin resistance index (P=0.045), and follow-up duration (P=0.009). The association was more significant in women (P=0.002) and in subjects without regular exercise (P=0.001). CONCLUSIONS Our study suggests a potential role of genetic variants in the ADM gene in the development of dysglycemia in our local Chinese population.
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Affiliation(s)
- Kwok Leung Ong
- Department of Medicine, University of Hong Kong, Hong Kong
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17
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Massiera F, Barbry P, Guesnet P, Joly A, Luquet S, Moreilhon-Brest C, Mohsen-Kanson T, Amri EZ, Ailhaud G. A Western-like fat diet is sufficient to induce a gradual enhancement in fat mass over generations. J Lipid Res 2010; 51:2352-61. [PMID: 20410018 DOI: 10.1194/jlr.m006866] [Citation(s) in RCA: 126] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The prevalence of obesity has steadily increased over the last few decades. During this time, populations of industrialized countries have been exposed to diets rich in fat with a high content of linoleic acid and a low content of alpha-linolenic acid compared with recommended intake. To assess the contribution of dietary fatty acids, male and female mice fed a high-fat diet (35% energy as fat, linoleic acid:alpha-linolenic acid ratio of 28) were mated randomly and maintained after breeding on the same diet for successive generations. Offspring showed, over four generations, a gradual enhancement in fat mass due to combined hyperplasia and hypertrophy with no change in food intake. Transgenerational alterations in adipokine levels were accompanied by hyperinsulinemia. Gene expression analyses of the stromal vascular fraction of adipose tissue, over generations, revealed discrete and steady changes in certain important players, such as CSF3 and Nocturnin. Thus, under conditions of genome stability and with no change in the regimen over four generations, we show that a Western-like fat diet induces a gradual fat mass enhancement, in accordance with the increasing prevalence of obesity observed in humans.
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Affiliation(s)
- Florence Massiera
- Université de Nice Sophia-Antipolis, CNRS, IBDC, UMR 6543, 06107 Nice, France
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18
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Increased plasma levels of the mature and intermediate forms of adrenomedullin in obesity. ACTA ACUST UNITED AC 2009; 158:127-31. [PMID: 19706311 DOI: 10.1016/j.regpep.2009.08.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2009] [Revised: 06/20/2009] [Accepted: 08/16/2009] [Indexed: 11/21/2022]
Abstract
Adrenomedullin (AM) is a cardiovascular protective peptide produced in various organs and tissues including adipose tissue. In the present study, we measured the plasma AM levels of subjects with or without obesity by two assay methods to separately evaluate the biologically active AM-NH(2) and the intermediate form of AM-glycine (AM-Gly). We measured the total AM and AM-NH(2) levels of plasma in 52 obese and 172 non-obese residents of a Japanese community, who received regular health check-ups and had no overt cardiovascular disease. AM-Gly values were obtained by subtracting AM-NH(2) levels from those of total AM. Both the AM-NH(2) and AM-Gly levels of the subjects with obesity were higher than those without obesity, and significant relationships were noted between body mass index (BMI) and the plasma levels of the two molecular forms of AM in a simple regression analysis. Moreover, the significant factors identified by multivariate analyses were BMI and serum triglyceride for AM-NH(2) and diastolic blood pressure, insulin, high-density lipoprotein-cholesterol, and plasma renin activity for AM-Gly. These results suggest active roles for the two molecular forms of AM in metabolic disorders associated with obesity in subjects without overt cardiovascular disease.
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Vila G, Riedl M, Maier C, Struck J, Morgenthaler NG, Handisurya A, Prager G, Ludvik B, Clodi M, Luger A. Plasma MR-proADM correlates to BMI and decreases in relation to leptin after gastric bypass surgery. Obesity (Silver Spring) 2009; 17:1184-8. [PMID: 19247278 DOI: 10.1038/oby.2009.22] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Adrenomedullin (ADM) is a vasoactive peptide found to be related to obesity and its comorbidities: type 2 diabetes, hypertension, atherosclerosis, and coronary heart disease. ADM is increased both in plasma and in adipose tissue of obese individuals when compared to lean subjects and is considered as a member of the adipokine family. We determined plasma midregional proadrenomedullin (MR-proADM) concentrations in a cohort of 357 subjects with BMI ranging from 17.5 to 42.3 kg/m2 and no additional medical history. In parallel, 28 severely obese patients scheduled to undergo laparoscopic Roux-en-Y gastric bypass (RYGB) surgery were studied at two time points: before and 1 year after surgery. Outcome measurements were: MR-proADM, cortisol, leptin, C-reactive protein (CRP) thyroid-stimulating hormone (TSH), creatinine and metabolic parameters. BMI correlated significantly to plasma MR-proADM levels (r=0.714, P<0.001), also after adjustment for age and gender (r=0.767, P<0.001). In obese subjects, there was a positive relationship between MR-proADM and leptin (r=0.511, P=0.006). Following RYGB, plasma MR-proADM decreased from 0.76+/-0.03 to 0.62+/-0.02 pg/ml (P<0.0001). RYGB-induced changes in MR-proADM correlated significantly to changes in leptin (r=0.533, P=0.004) and in CRP (r=0.429, P=0.023). We conclude that BMI is an independent predictor of circulating MR-proADM levels. Weight loss after RYGB is associated with a significant decrease in plasma MR-proADM, which is related to surgery-induced changes in both circulating leptin and systemic inflammation.
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Affiliation(s)
- Greisa Vila
- Division of Endocrinology and Metabolism, Department of Medicine III, Medical University of Vienna, Vienna, Austria.
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Hopwood B, Tsykin A, Findlay DM, Fazzalari NL. Gene expression profile of the bone microenvironment in human fragility fracture bone. Bone 2009; 44:87-101. [PMID: 18840552 DOI: 10.1016/j.bone.2008.08.120] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2008] [Revised: 08/06/2008] [Accepted: 08/15/2008] [Indexed: 11/30/2022]
Abstract
Osteoporosis (OP) is a common age-related systemic skeletal disease, with a strong genetic component, characterised by loss of bone mass and strength, which leads to increased bone fragility and susceptibility to fracture. Although some progress has been made in identifying genes that may contribute to OP disease, much of the genetic component of OP has yet to be accounted for. Therefore, to investigate the molecular basis for the changes in bone causally involved in OP and fragility fracture, we have used a microarray approach. We have analysed altered gene expression in human OP fracture bone by comparing mRNA in bone from individuals with fracture of the neck of the proximal femur (OP) with that from age-matched individuals with osteoarthritis (OA), and control (CTL) individuals with no known bone pathology. The OA sample set was included because an inverse association, with respect to bone density, has been reported between OA and the OP individuals. Compugen H19K oligo human microarray slides were used to compare the gene expression profiles of three sets of female samples comprising, 10 OP-CTL, 10 OP-OA, and 10 OA-CTL sample pairs. Using linear models for microarray analysis (Limma), 150 differentially expressed genes in OP bone with t scores >5 were identified. Differential expression of 32 genes in OP bone was confirmed by real time PCR analysis (p<0.01). Many of the genes identified have known or suspected roles in bone metabolism and in some cases have been implicated previously in OP pathogenesis. Three major sets of differentially expressed genes in OP bone were identified with known or suspected roles in either osteoblast maturation (PRRX1, ANXA2, ST14, CTSB, SPARC, FST, LGALS1, SPP1, ADM, and COL4A1), myelomonocytic differentiation and osteoclastogenesis (TREM2, ANXA2, IL10, CD14, CCR1, ADAM9, CCL2, CTGF, and KLF10), or adipogenesis, lipid and/or glucose metabolism (IL10, MARCO, CD14, AEBP1, FST, CCL2, CTGF, SLC14A1, ANGPTL4, ADM, TAZ, PEA15, and DOK4). Altered expression of these genes and others in these groups is consistent with previously suggested underlying molecular mechanisms for OP that include altered osteoblast and osteoclast differentiation and function, and an imbalance between osteoblastogenesis and adipogenesis.
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Affiliation(s)
- B Hopwood
- Division of Tissue Pathology, Institute of Medical and Veterinary Science, Adelaide, South Australia, Australia.
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Nagare T, Sakaue H, Takashima M, Takahashi K, Gomi H, Matsuki Y, Watanabe E, Hiramatsu R, Ogawa W, Kasuga M. The Krüppel-like factor KLF15 inhibits transcription of the adrenomedullin gene in adipocytes. Biochem Biophys Res Commun 2008; 379:98-103. [PMID: 19094967 DOI: 10.1016/j.bbrc.2008.12.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2008] [Accepted: 12/04/2008] [Indexed: 11/17/2022]
Abstract
KLF15 (Krüppel-like factor 15) plays a key role in adipocyte differentiation and glucose transport in adipocytes through activation of its target genes. We have now identified six target genes regulated directly by KLF15 in 3T3-L1 mouse adipocytes with the use of a combination of microarray-based chromatin immunoprecipitation and gene expression analyses. We confirmed the direct regulation by KLF15 of one of these genes, that for adrenomedullin, with the use of a luciferase reporter assay in 3T3-L1 preadipocytes and adipocytes. Such analysis revealed that the most proximal CACCC element in the promoter of the human adrenomedullin gene (located in the region spanning nucleotides -70 and -29) is required for trans-inhibition by KLF15. Furthermore, chromatin immunoprecipitation showed that KLF15 binds to this region of the human adrenomedullin gene promoter in cultured human adipocytes. These results thus implicate KLF15 in the regulation of adrenomedullin expression in adipose tissue.
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Affiliation(s)
- Tomoki Nagare
- Department of Internal Medicine, Division of Diabetes, Kobe University Graduate School of Medicine, Kobe, Japan
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Kesty NC, Roth JD, Maggs D. Hormone-based therapies in the regulation of fuel metabolism and body weight. Expert Opin Biol Ther 2008; 8:1733-47. [DOI: 10.1517/14712598.8.11.1733] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Iemura-Inaba C, Nishikimi T, Akimoto K, Yoshihara F, Minamino N, Matsuoka H. Role of adrenomedullin system in lipid metabolism and its signaling mechanism in cultured adipocytes. Am J Physiol Regul Integr Comp Physiol 2008; 295:R1376-84. [PMID: 18685068 DOI: 10.1152/ajpregu.90467.2008] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We investigated the levels of adrenomedullin (AM) system during the process of preadipocyte differentiation and its role in lipid metabolism and cellular signaling mechanism in differentiated adipocytes. We cultured rat preadipocytes and measured the following during the process of differentiation: two molecular forms of AM in the culture medium using a specific immunoradiometric assay and gene expression of AM and its receptor component using RT-PCR analysis. In differentiated adipocytes, we measured the effects of AM on the intracellular cAMP level, lipolysis, glucose incorporation, and the protein levels. Two molecular forms of AM were secreted into the medium, and the AM-mature/AM-total ratio was increased after 6 days of differentiation. Cultured rat preadipocytes highly expressed the genes of AM and its receptor components at day 1, and they increased at day 10. Administration of AM to preadipocytes increased the number of Oil Red O-positive adipocytes and spectrophotometric absorbance of Oil Red O. AM dose dependently increased cAMP level and lipolysis, and its effect was blocked by CGRP(8-37). Isoproterenol increased lipolysis, and AM had additive effects on isoproterenol-induced lipolysis. KT5720 and U0126 significantly inhibited the AM-induced lipolysis, whereas KT5720, but not U0126, significantly inhibited the isoproterenol-induced lipolysis. AM increased glucose incorporation and its effect was blocked by wortmannin. Western blot analysis revealed that AM increased phospho PKA, ERK, and Akt. These results indicate that AM and its receptor component are highly expressed in cultured adipocytes and may play a role in lipid metabolism via a different signaling pathway.
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Affiliation(s)
- Chikako Iemura-Inaba
- Dept. of Hypertension and Cardiorenal Medicine, Dokkyo Univ. School of Medicine, Mibu, Tochigi 321-0293, Japan
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Harmancey R, Smih F. Response to Comment on: Harmancey et al. (2007) Adrenomedullin Inhibits Adipogenesis Under Transcriptional Control of Insulin: Diabetes 56:553 563. Diabetes 2007; 56:e18. [PMID: 17901220 DOI: 10.2337/db07-1003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Takahashi K. Comment on: Harmancey et al. (2007) Adrenomedullin inhibits adipogenesis under transcriptional control of insulin: Diabetes 56:553-563. Diabetes 2007; 56:e15. [PMID: 17726134 DOI: 10.2337/db07-0592] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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