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Drygalski K, Higos R, Merabtene F, Mojsak P, Grubczak K, Ciborowski M, Razak H, Clément K, Dugail I. Extracellular matrix hyaluronan modulates fat cell differentiation and primary cilia dynamics. Biochim Biophys Acta Mol Cell Biol Lipids 2024; 1869:159470. [PMID: 38423452 DOI: 10.1016/j.bbalip.2024.159470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/02/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
Hyaluronan is an important extracellular matrix component, with poorly documented physiological role in the context of lipid-rich adipose tissue. We have investigated the global impact of hyaluronan removal from adipose tissue environment by in vitro exposure to exogenous hyaluronidase (or heat inactivated enzyme). Gene set expression analysis from RNA sequencing revealed downregulated adipogenesis as a main response to hyaluronan removal from human adipose tissue samples, which was confirmed by hyaluronidase-mediated inhibition of adipocyte differentiation in the 3T3L1 adipose cell line. Hyaluronidase exposure starting from the time of induction with the differentiation cocktail reduced lipid accumulation in mature adipocytes, limited the expression of terminal differentiation marker genes, and impaired the early induction of co-regulated Cebpa and Pparg mRNA. Reduction of Cebpa and Pparg expression by exogenous hyaluronidase was also observed in cultured primary preadipocytes from subcutaneous, visceral or brown adipose tissue of mice. Mechanistically, inhibition of adipogenesis by hyaluronan removal was not caused by changes in osmotic pressure or cell inflammatory status, could not be mimicked by exposure to threose, a metabolite generated by hyaluronan degradation, and was not linked to alteration in endogenous Wnt ligands expression. Rather, we observed that hyaluronan removal associated with disrupted primary cilia dynamics, with elongated cilium and higher proportions of preadipocytes that remained ciliated in hyaluronidase-treated conditions. Thus, our study points to a new link between ciliogenesis and hyaluronan impacting adipose tissue development.
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Affiliation(s)
- Krzysztof Drygalski
- INSERM, Sorbonne Université, NutriOmics team : Nutrition/Obesities- systemic approaches, Paris 75013, France; Department of Hypertension and Diabetology, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Romane Higos
- INSERM, Sorbonne Université, NutriOmics team : Nutrition/Obesities- systemic approaches, Paris 75013, France
| | - Fatiha Merabtene
- INSERM, Sorbonne Université, NutriOmics team : Nutrition/Obesities- systemic approaches, Paris 75013, France
| | - Patrycja Mojsak
- Clinical Research Centre, Medical University of Bialystok, 15-276 Białystok, Poland
| | - Kamil Grubczak
- Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, 15-269 Bialystok, Poland
| | - Michal Ciborowski
- Clinical Research Centre, Medical University of Bialystok, 15-276 Białystok, Poland
| | - Hady Razak
- Department of General and Endocrine Surgery, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Karine Clément
- INSERM, Sorbonne Université, NutriOmics team : Nutrition/Obesities- systemic approaches, Paris 75013, France; Assistance Publique-Hopitaux de Paris, Nutrition department, Pitié-Salpetrière Hospital, 75013 Paris, France
| | - Isabelle Dugail
- INSERM, Sorbonne Université, NutriOmics team : Nutrition/Obesities- systemic approaches, Paris 75013, France.
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Kim Y, Ji H, Ryu D, Cho E, Park D, Jung E. Albizia julibrissin Exerts Anti-Obesity Effects by Inducing the Browning of 3T3L1 White Adipocytes. Int J Mol Sci 2023; 24:11496. [PMID: 37511251 PMCID: PMC10380714 DOI: 10.3390/ijms241411496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
This study investigated the effects of the Albizia julibrissin Leaf extracts (AJLE) on adipocytes using 3T3-L1 cells. AJLE inhibited adipogenesis by reducing the expression of peroxisome proliferator-activated receptor γ (PPARγ) and CCAAT/enhancer binding proteins (C/EBPs) that regulate enzymes involved in fat synthesis and storage, and subsequently reduced intracellular lipid droplets, glycerol-3-phosphate dehydrogenase (GPDH), and triglyceride (TG). AJLE also increased the expression of brown adipocyte markers, such as uncoupling protein-1 (UCP-1), PR/SET domain 16 (PRDM16), and bone morphogenetic protein 7 (BMP7) by inducing the differentiation of brown adipocytes, as shown by a decrease in the lipid droplet sizes and increasing mitochondrial mass. AJLE increased the expression of transcription factor A, mitochondrial (TFAM), mitochondrial DNA (mtDNA) copy number, and UCP-1 protein expression, all of which are key factors in regulating mitochondrial biogenesis. AJLE-induced browning was shown to be regulated by the coordination of AMPK, p38, and SIRT1 signaling pathways. The ability of AJLE to inhibit adipogenesis and induce brown adipocyte differentiation may help treat obesity and related diseases.
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Affiliation(s)
- Yuna Kim
- Biospectrum Life Science Institute, Yongin 16827, Republic of Korea
| | - Hyanggi Ji
- Biospectrum Life Science Institute, Yongin 16827, Republic of Korea
| | - Dehun Ryu
- Biospectrum Life Science Institute, Yongin 16827, Republic of Korea
| | - Eunae Cho
- Biospectrum Life Science Institute, Yongin 16827, Republic of Korea
| | - Deokhoon Park
- Biospectrum Life Science Institute, Yongin 16827, Republic of Korea
| | - Eunsun Jung
- Biospectrum Life Science Institute, Yongin 16827, Republic of Korea
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Banakar F, Ebrahim-Habibi A, Mohammad-Amoli M, Kheirbakhsh R, Sadeghi-Afjeh M, Shahriari S, Larijani B. Hydro alcoholic green tea extract effect on high fat diet treated NMRI mice and 3T3L1 cells. J Diabetes Metab Disord 2021; 20:641-648. [PMID: 34178857 DOI: 10.1007/s40200-021-00794-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 04/04/2021] [Indexed: 11/29/2022]
Abstract
Purpose In order to counteract the obesity has epidemics, since current anti-obesity drugs effects remain limited, there is a need to provide new options. As a project aiming to assess potential anti obesity natural compounds, the effects of consumption of a minimal dose of green tea hydro alcoholic extract (GT) on adipocyte differentiation of 3T3L1 cell line were investigated. Methods Obesity was induced in female NMRI mice (which are less used overall) by the use of a high fat diet. Mice were divided into four groups of control (C), treated control (TC), obese (O) and treated obese (TO). TC and TO groups received 8 mg/Kg/day of GT for 8 weeks, and weighted weekly, after what biochemical and histological parameters were measured. GT was used at doses of 100,150 and 200 µg/ml on 3T3L1, and staining with Oil-red-O was done for estimation of fat droplet accumulation. Results Body weight was found to be affected significantly by GT. Blood glucose levels did not show significant changes between groups, while triglycerides levels of the O group was significantly higher than the C group, but the TO group showed no significant difference with the C group upon GT treatment. Liver and visceral fat tissues showed more normalized tissue and less fat accumulation in the TO group. TO and TC groups showed an ameliorated morphologic state of liver tissues. GT was also able to decrease fat droplet formation in a dose-dependent manner. Conclusions Adding a minimal amount of GT to the daily consumption may have preventive effects on fat accumulation in healthy subjects, while in obese cases, GT shows significant therapeutic effect.
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Affiliation(s)
- Farnaz Banakar
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism - Clinical Sciences Institute, Tehran University of Medical Sciences, Jalal-al-Ahmad Street, Chamran Highway, 1411713137 Tehran, Iran.,Biosensor Research Center, Endocrinology and Metabolism Molecular -Cellular Sciences Institute, Tehran University of Medical Sciences, Jalal-al-Ahmad Street, Chamran Highway, 1411713137 Tehran, Iran
| | - Azadeh Ebrahim-Habibi
- Biosensor Research Center, Endocrinology and Metabolism Molecular -Cellular Sciences Institute, Tehran University of Medical Sciences, Jalal-al-Ahmad Street, Chamran Highway, 1411713137 Tehran, Iran
| | - Mahsa Mohammad-Amoli
- Metabolic Disorders Research Centre, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Raheleh Kheirbakhsh
- Cancer Biology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsa Sadeghi-Afjeh
- Food and Drug Research Laboratory, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Shadab Shahriari
- Metabolic Disorders Research Centre, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism - Clinical Sciences Institute, Tehran University of Medical Sciences, Jalal-al-Ahmad Street, Chamran Highway, 1411713137 Tehran, Iran
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Naghiaee Y, Didehdar R, Pourrajab F, Rahmanian M, Heiranizadeh N, Mohiti A, Mohiti-Ardakani J. Metformin downregulates miR223 expression in insulin-resistant 3T3L1 cells and human diabetic adipose tissue. Endocrine 2020; 70:498-508. [PMID: 32970287 DOI: 10.1007/s12020-020-02459-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 08/08/2020] [Indexed: 02/06/2023]
Abstract
AIMS AND DESIGNS Metformin, an anti-diabetic drug, is the first line medication for the treatment of type 2 diabetes mellitus and some studies show its relationship with micro-RNAs. This study set up to determine the effect of metformin on miR223 expression and content of AKT/GLUT4 proteins in insulin resistant signaling in 3T3L1 cells and adipocyte of human diabetic patients. MATERIALS AND METHODS Subcutaneous adipose tissues were taken from newly diagnosed diabetic patients (HOMA-IR > 1.8), before and after three months treatment with 500 mg of metformin twice a day. Cellular homogenate was prepared and miR223 expression and AKT/GLUT4 protein expression were determined by quantitative real-time PCR and western blotting. The results were compared to insulin resistant 3T3L1 adipocytes that were treated with 10 mM Metformin. RESULTS MiR223 expression was significantly overexpressed both in insulin-resistant 3T3L1 adipocytes compared to non-insulin resistant adipocytes and in human diabetic adipose tissue, compared to non-diabetics (P value < 0.01). Metformin treatment downregulated miR223 expression in both adipocytes and human diabetic adipose tissue. In contrast the IRS/PI3-K/AKT pathway signaling components, Akt and GLUT4 increased in insulin-resistant 3T3L1 adipocytes and human diabetic adipose tissue after three months of metformin treatment. CONCLUSIONS Metformin reduced insulin resistance in adipocytes by reduction of miR223 expression and improving of IRS/Akt/GLUT4 signaling pathways. Plasma miR223 expression of human diabetic patients was reduced by metformin treatment. These results point to a novel mechanism of miR223 in insulin resistance.
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Affiliation(s)
- Yousof Naghiaee
- Department of Biochemistry and Molecular Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Reza Didehdar
- Department of Biochemistry, Faculty of Medicine, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fatemeh Pourrajab
- Department of Biochemistry and Molecular Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Nutrition and Food Security Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Masoud Rahmanian
- Department of Endocrinology, School of Medicine Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Naeime Heiranizadeh
- Department of General Surgery, School of Medicine Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Azra Mohiti
- Department of Oral Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Javad Mohiti-Ardakani
- Department of Biochemistry and Molecular Biology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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Kumar V, Sekar M, Sarkar P, Acharya KK, Thirumurugan K. Dynamics of HOX gene expression and regulation in adipocyte development. Gene 2021; 768:145308. [PMID: 33197517 DOI: 10.1016/j.gene.2020.145308] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 11/08/2020] [Accepted: 11/10/2020] [Indexed: 02/03/2023]
Abstract
HOX proteins are homeodomain-containing transcription factors that play a central role in development. We have applied genome-wide approaches to develop time-dependent profile of differentially expressed genes in early and mature adipocytes. The list of differentially expressed HOX genes were developed by analyzing the microarray datasets of murine adipocyte samples at different time points of development. Since these datasets were obtained from Gene Expression Omnibus (GEO), we were able to find a new HOX gene, HOXC13 in adipogenesis. To investigate whether these members of the homeobox gene family are expressed and regulated in preadipocytes or mature adipocytes, RNA was isolated from 3T3-L1 preadipocyte cells at different time point's through-out the preadipocyte and adipocyte state. A reverse transcriptase-polymerase chain reaction strategy was applied for the analysis of gene expression. We have observed that HOXA5 and HOXC13 were differentially expressed in preadipocytes and HOXD4 and HOXD8 in mature adipocytes. To understand this difference in expression pattern, we have considered to investigate the role of the major regulators of adipogenesis in HOX gene regulation. Since Retinoic acid receptor (RAR) was reported previously as a regulator of Hox genes, we chose the combination of Peroxisome proliferator-activated receptor gamma (PPARγ) and Retinoic X receptor (RXR) which are modulated by the presence of RAR. To provide a detailed analysis of retinoic acid (RA) and/or PPARγ induced transcriptional and epigenetic changes within the homeotic clusters of mouse fibroblast cells (3T3-L1), we have performed a promoter mapping of HOX genes and observed an enriched binding site for PPARγ and RXR in their promoter regions. We further confirmed this PPARγ and RXR binding to HOX gene promoters by re-analyzing the anti-PPARγ/anti-RXR ChIP-Seq data. Based on the results, we modulated the PPARγ expression at the transcriptional and translational levels by using 5 different pharmacological molecules (TSA, GW9662, ATRA, FH535, and Pioglitazone) to elucidate their effect on the HOX gene transcription. These pharmacological molecules had a direct or indirect regulatory effect on the PPARγ activity. We observed that PPARγ suppression alone is enough for the upregulation of HOXA5 and HOXD4 genes. In addition, HOXD8 regulation was mediated by RAR activation in mature adipocytes but the regulation of HOXC13 gene expression was not clear. We suggest that it might be partially mediated through suppressing PPARγ activation. Further insights are required to provide a mechanistic detail about HOX gene regulation through PPARγ. In this study, we have reported a time-dependent expression analysis of HOXA5, HOXD4, HOXD8, and HOXC13 in preadipocytes and mature adipocytes. Also, we have suggested PPARγ/RAR dependent regulation for these genes during adipogenesis.
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Abstract
Cachexia, a complex metabolic syndrome, is characterized by involuntary weight loss along with muscle wasting and fat depletion leading to poor quality of life of patients. About 80% of pancreatic cancer patients exhibit cachectic phenotype at the time of diagnosis. Here, we present the several molecular and physiological parameters, which we utilize to study the pancreatic cancer-induced cachexia in in vitro models and preclinical mice models of pancreatic cancer. We have described myotube and adipocyte-based in vitro models of muscle and fat wasting, including methods of cell culture, differentiation, and treatment with cancer cell-conditioned medium. Furthermore, we have explained the methods of evaluation of key cachectic markers for muscles. Next, we have detailed the orthotopic implantation mouse models of pancreatic cancer and evaluation of different physiological parameters, including body weight, food intake, body composition analysis, glucose tolerance test, insulin resistance test, grip strength measurement, and rotarod performance test. We have also explained morphological parameters and molecular markers to evaluate the muscle wasting in pancreatic cancer-induced cachexia.
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Affiliation(s)
- Surendra K Shukla
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - Aneesha Dasgupta
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Scott E Mulder
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Pankaj K Singh
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA. .,Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA. .,Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, USA. .,Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA.
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Kim MH, Park SJ, Kim JH, Seong JB, Kim KM, Woo HA, Lee DS. Peroxiredoxin 5 regulates adipogenesis-attenuating oxidative stress in obese mouse models induced by a high-fat diet. Free Radic Biol Med 2018; 123:27-38. [PMID: 29777756 DOI: 10.1016/j.freeradbiomed.2018.05.061] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 05/09/2018] [Accepted: 05/13/2018] [Indexed: 12/12/2022]
Abstract
Elevated levels of reactive oxygen species (ROS) are a hallmark of obesity. Peroxiredoxin 5 (Prx5), which is a cysteine-dependent peroxidase enzyme, has an intensive ROS scavenging activity because it is located in the cytosol and mitochondria. Therefore, we focused on the role of Prx5 in regulating mitochondrial ROS and adipogenesis. We demonstrated that Prx5 expression was upregulated during adipogenesis and Prx5 overexpression suppressed adipogenesis by regulating cytosolic and mitochondrial ROS generation. Silencing Prx5 promoted preadipocytes to differentiate into adipocytes accumulating lipids by activating adipogenic protein expression. Prx5-deletion mice fed on a high-fat diet (HFD) exhibited significant increase in body weight, enormous fat pads, and adipocyte hypertrophy in comparison to wild type mice. Prx5 deletion also remarkably induced adipogenesis-related gene expression in white adipose tissue. These phenotypic changes in Prx5-deletion mice were accompanied with lipid metabolic disorders, such as excessive lipid accumulation in the liver, severe hepatic steatosis, and high levels of triglyceride in the serum. These results demonstrated that Prx5 deletion increased the susceptibility to HFD-induced obesity and several of its associated metabolic disorders. In conclusion, we suggest that Prx5 inhibits adipogenesis by modulating ROS generation and adipogenic gene expression, implying that Prx5 may serve as a potential strategy to prevent and treat obesity.
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Affiliation(s)
- Mi Hye Kim
- School of Life science, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sun-Ji Park
- School of Life science, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; Renal Division, School of Medicine, Washington University in St. Louis, MO, USA
| | - Jung-Hak Kim
- School of Life science, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; Division of Endocrinology, Internal Medicine, University of California, Davis, CA, USA
| | - Jung Bae Seong
- School of Life science, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Kyung-Min Kim
- School of Life science, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hyun Ae Woo
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea.
| | - Dong-Seok Lee
- School of Life science, BK21 Plus KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea; College of Natural Sciences, Kyungpook National University, Daegu 41566, Republic of Korea.
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Du X, Huang Q, Guan Y, Lv M, He X, Fang C, Wang X, Sheng J. Caffeine Promotes Conversion of Palmitic Acid to Palmitoleic Acid by Inducing Expression of fat-5 in Caenorhabditis elegans and scd1 in Mice. Front Pharmacol 2018; 9:321. [PMID: 29681853 PMCID: PMC5897652 DOI: 10.3389/fphar.2018.00321] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 03/20/2018] [Indexed: 02/02/2023] Open
Abstract
The synthesis and metabolism of fatty acids in an organism is related to many biological processes and is involved in several diseases. The effects of caffeine on fatty acid synthesis and fat storage in Caenorhabditis elegans and mice were studied. After 6 h of food deprivation, adult C. elegans were treated with 0.1 mg/mL caffeine for 24 h. Quantitative reverse-transcription polymerase chain reaction showed that, among all the genes involved in fat accumulation, the mRNA expression of fat-5 in caffeine-treated C. elegans was significantly higher than that of controls, whereas fat-6 and fat-7 displayed no significant difference. Gas chromatography-mass spectrometry was used to verify the fatty acid composition of C. elegans. Results showed that the ratio of palmitoleic acid (16:1) to that of palmitic acid (16:0) was higher in the caffeine-treated group. Several mutant strains, including those involved in the insulin-like growth factor-1, dopamine, and serotonin pathways, and nuclear hormone receptors (nhrs), were used to assess their necessity to the effects of caffeine. We found that mdt-15 was essential for the effects of caffeine, which was independent of nhr-49 and nhr-80. Caffeine may increase fat-5 expression by acting on mdt-15. In high fat diet (HFD), but not in normal diet (ND) mice, caffeine induced expression of scd1 in both subcutaneous and epididymal white adipose tissue, which was consistent with the palmitoleic/palmitic ratio results by gas chromatograph analysis. In mature adipocytes, caffeine treatment induced both mRNA and protein expression of scd1 and pgc-1α. Overall, our results provided a possible mechanism on how caffeine modulates metabolism homeostasis in vivo.
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Affiliation(s)
- Xiaocui Du
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China.,Tea Research Center of Yunnan, Kunming, China.,College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Qin Huang
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China.,Tea Research Center of Yunnan, Kunming, China.,College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Yun Guan
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China.,Tea Research Center of Yunnan, Kunming, China.,College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Ming Lv
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China.,Tea Research Center of Yunnan, Kunming, China.,College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Xiaofang He
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China.,Tea Research Center of Yunnan, Kunming, China.,College of Food Science and Technology, Yunnan Agricultural University, Kunming, China
| | - Chongye Fang
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China.,Tea Research Center of Yunnan, Kunming, China.,College of Science, Yunnan Agricultural University, Kunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Kunming, China
| | - Xuanjun Wang
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China.,Tea Research Center of Yunnan, Kunming, China.,College of Science, Yunnan Agricultural University, Kunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Kunming, China
| | - Jun Sheng
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, China.,Tea Research Center of Yunnan, Kunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Kunming, China
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Lima NDS, Numata EP, Mesquita LMS, Dias PH, Vilegas W, Gambero A, Ribeiro ML. Modulatory Effects of Guarana (Paullinia cupana) on Adipogenesis. Nutrients 2017; 9:E635. [PMID: 28632199 DOI: 10.3390/nu9060635] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Guarana (Paullinia cupana) is a plant originated in Brazil that presents a beneficial effect on body weight control and metabolic alterations. The aim of this study was to evaluate the effects of guarana on genes and miRNAs related to adipogenesis in 3T3L1 cells. The anti-adipogenic effect of guarana was evaluated by Oil Red-O staining. Gene and miRNA expression levels were determined by real time PCR. The Cebpα and β-catenin nuclear translocation were evaluated using immunocytochemistry. Our data indicated that the triglyceride-reducing effect of guarana was dose-dependent from 100 to 300 µg/mL (−12%, −20%, −24% and −40%, respectively, p < 0.0001). An up-regulation of the anti-adipogenic genes Wnt10b, Wnt3a, Wnt1, Gata3 and Dlk1 and a down-regulation of pro-adipogenic genes Cebpα, Pparγ and Creb1 were also observed. Furthermore, guarana repressed mmu-miR-27b-3p, mmu-miR-34b-5p and mmu-miR-760-5p, that contributed for up-regulation of their molecular targets Wnt3a, Wnt1 and Wnt10b. Additionally, cells treated with guarana presented an increase on β-catenin nuclear translocation (p < 0.0018). In summary, our data indicate that guarana has an anti-adipogenic potential due to its ability to modulate miRNAs and genes related to this process. Together our data demonstrate the important role of guarana as a putative therapeutic agent.
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Chen L, Wang T, Chen G, Wang N, Gui L, Dai F, Fang Z, Zhang Q, Lu Y. Influence of resveratrol on endoplasmic reticulum stress and expression of adipokines in adipose tissues/adipocytes induced by high-calorie diet or palmitic acid. Endocrine 2017; 55:773-785. [PMID: 28070709 DOI: 10.1007/s12020-016-1212-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 12/15/2016] [Indexed: 01/18/2023]
Abstract
PURPOSE This study aimed to determine whether resveratrol treatment alleviates endoplasmic reticulum stress and changes the expression of adipokines in adipose tissues and cells. METHODS 8-week-old male C57BL/6 mice were fed a high-calorie diet (HCD group) or high-calorie diet supplemented with resveratrol (high-calorie diet + resveratrol group) for 3 months. Insulin resistance, serum lipids and proinflammatory indices, the size and inflammatory cell infiltration in subcutaneous and visceral adipose tissues were analyzed. The gene expressions of endoplasmic reticulum stress, adipokines, and inflammatory cytokines were determined. The induced mature 3T3-L1 cells were pretreated with resveratrol and then palmitic acid, and the gene expressions of endoplasmic reticulum stress, adipokines, and inflammatory cytokines were determined. RESULTS Subcutaneous and visceral adipose tissues in the high-calorie diet-fed mice exhibited adipocyte hypertrophy, inflammatory activation, and endoplasmic reticulum stress. Resveratrol alleviated high-calorie diet-induced insulin resistance and endoplasmic reticulum stress, increased expression of SIRT1, and reversed expression of adipokines in varying degrees in both subcutaneous and visceral adipose tissues. The effects of resveratrol on palmitic acid-treated adipocytes were similar to those shown in the tissues. CONCLUSIONS Resveratrol treatment obviously reversed adipocyte hypertrophy and insulin resistance by attenuating endoplasmic reticulum stress and inflammation, thus increasing the expression of SIRT1 and inverting the expression of adipokines in vivo and in vitro.
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Affiliation(s)
- Li Chen
- Clinical Laboratory, Anhui Provincial Hospital, Hefei, Anhui, 230001, China
| | - Ting Wang
- Endocrinology Department, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, China
| | - Guanjun Chen
- Department of Chemistry, Anhui Medical University, Hefei, Anhui, 230032, China
| | - Nuojin Wang
- Endocrinology Department, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, China
| | - Li Gui
- The Comprehensive Laboratory, Anhui Medical University, Hefei, Anhui, 230032, China
| | - Fang Dai
- Endocrinology Department, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, China
| | - Zhaohui Fang
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, Anhui, 230032, China
| | - Qiu Zhang
- Endocrinology Department, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, China
| | - Yunxia Lu
- The Comprehensive Laboratory, Anhui Medical University, Hefei, Anhui, 230032, China.
- Department of Biochemistry and Molecular Biology, Anhui Medical University, Hefei, Anhui, 230031, China.
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11
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Meyer KA, Neeley CK, Baker NA, Washabaugh AR, Flesher CG, Nelson BS, Frankel TL, Lumeng CN, Lyssiotis CA, Wynn ML, Rhim AD, O'Rourke RW. Adipocytes promote pancreatic cancer cell proliferation via glutamine transfer. Biochem Biophys Rep 2016; 7:144-149. [PMID: 27617308 PMCID: PMC5014359 DOI: 10.1016/j.bbrep.2016.06.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Adipocytes promote progression of multiple cancers, but their role in pancreatic intraepithelial neoplasia (PanIN) and ductal adenocarcinoma (PDAC) is poorly defined. Nutrient transfer is a mechanism underlying stromal cell-cancer crosstalk. We studied the role of adipocytes in regulating in vitro PanIN and PDAC cell proliferation with a focus on glutamine metabolism. Murine 3T3L1 adipocytes were used to model adipocytes. Cell lines derived from PKCY mice were used to model PanIN and PDAC. Co-culture was used to study the effect of adipocytes on PanIN and PDAC cell proliferation in response to manipulation of glutamine metabolism. Glutamine secretion was measured with a bioanalyzer. Western blotting was used to study the effect of PanIN and PDAC cells on expression of glutamine-related enzymes in adipocytes. Adipocytes promote proliferation of PanIN and PDAC cells, an effect that was amplified in nutrient-poor conditions. Adipocytes secrete glutamine and rescue PanIN and PDAC cell proliferation in the absence of glutamine, an effect that was glutamine synthetase-dependent and involved PDAC cell-induced down-regulation of glutaminase expression in adipocytes. These findings suggest glutamine transfer as a potential mechanism underlying adipocyte-induced PanIN and PDAC cell proliferation.
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Affiliation(s)
- Kevin A Meyer
- Department of Surgery, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Christopher K Neeley
- Department of Surgery, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Nicki A Baker
- Department of Surgery, University of Michigan Medical School, Ann Arbor, MI, USA
| | | | - Carmen G Flesher
- Undergraduate Research Opportunity Program, University of Michigan, Ann Arbor, MI, USA
| | - Barbara S Nelson
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Timothy L Frankel
- Department of Surgery, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Surgery, Ann Arbor Veteran's Administration Hospital, Ann Arbor, MI, USA
| | - Carey N Lumeng
- Department of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Costas A Lyssiotis
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Michelle L Wynn
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA; Division of Hematology and Oncology and Comprehensive Cancer Center, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Andrew D Rhim
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Robert W O'Rourke
- Department of Surgery, University of Michigan Medical School, Ann Arbor, MI, USA; Department of Surgery, Ann Arbor Veteran's Administration Hospital, Ann Arbor, MI, USA
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12
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Liu YY, Ayers S, Milanesi A, Teng X, Rabi S, Akiba Y, Brent GA. Thyroid hormone receptor sumoylation is required for preadipocyte differentiation and proliferation. J Biol Chem 2015; 290:7402-15. [PMID: 25572392 DOI: 10.1074/jbc.m114.600312] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Thyroid hormone and thyroid hormone receptor (TR) play an essential role in metabolic regulation. However, the role of TR in adipogenesis has not been established. We reported previously that TR sumoylation is essential for TR-mediated gene regulation and that mutation of either of the two sites in TRα or any of the three sites in TRβ reduces TR sumoylation. Here, we transfected TR sumoylation site mutants into human primary preadiocytes and the mouse 3T3L1 preadipocyte cell line to determine the role of TR sumoylation in adipogenesis. Reduced sumoylation of TRα or TRβ resulted in fewer and smaller lipid droplets and reduced proliferation of preadipocytes. TR sumoylation mutations, compared with wild-type TR, results in reduced C/EBP expression and reduced PPARγ2 mRNA and protein levels. TR sumoylation mutants recruited NCoR and disrupted PPARγ-mediated perilipin1 (Plin1) gene expression, associated with impaired lipid droplet formation. Expression of NCoRΔID, a mutant NCoR lacking the TR interaction domain, partially "rescued" the delayed adipogenesis and restored Plin1 gene expression and adipogenesis. TR sumoylation site mutants impaired Wnt/β-catenin signaling pathways and the proliferation of primary human preadipocytes. Expression of the TRβ K146Q sumoylation site mutant down-regulated the essential genes required for canonical Wnt signal-mediated proliferation, including Wnt ligands, Fzds, β-catenin, LEF1, and CCND1. Additionally, the TRβ K146Q mutant enhanced the canonical Wnt signaling inhibitor Dickkopf-related protein 1 (DKK1). Our data demonstrate that TR sumoylation is required for activation of the Wnt canonical signaling pathway during preadipocyte proliferation and enhances the PPARγ signaling that promotes differentiation.
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Affiliation(s)
- Yan-Yun Liu
- From the Molecular Endocrinology Laboratory, Veterans Affairs Greater Los Angeles Healthcare System and Departments of Medicine and Physiology, David Geffen School of Medicine at UCLA, Los Angeles, California 90073,
| | - Stephen Ayers
- the Genomic Medicine Program, Methodist Hospital Research Institute, Houston, Texas 77030, and
| | - Anna Milanesi
- From the Molecular Endocrinology Laboratory, Veterans Affairs Greater Los Angeles Healthcare System and Departments of Medicine and Physiology, David Geffen School of Medicine at UCLA, Los Angeles, California 90073
| | - Xiaochun Teng
- the Institute of Endocrinology, China Medical University, Shenyang 110001, China
| | - Sina Rabi
- From the Molecular Endocrinology Laboratory, Veterans Affairs Greater Los Angeles Healthcare System and Departments of Medicine and Physiology, David Geffen School of Medicine at UCLA, Los Angeles, California 90073
| | - Ysutada Akiba
- From the Molecular Endocrinology Laboratory, Veterans Affairs Greater Los Angeles Healthcare System and Departments of Medicine and Physiology, David Geffen School of Medicine at UCLA, Los Angeles, California 90073
| | - Gregory A Brent
- From the Molecular Endocrinology Laboratory, Veterans Affairs Greater Los Angeles Healthcare System and Departments of Medicine and Physiology, David Geffen School of Medicine at UCLA, Los Angeles, California 90073,
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