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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] [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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Gopan G, Jose J, Khot KB, Bandiwadekar A. The use of cellulose, chitosan and hyaluronic acid in transdermal therapeutic management of obesity: A review. Int J Biol Macromol 2023:125374. [PMID: 37330096 DOI: 10.1016/j.ijbiomac.2023.125374] [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: 02/03/2023] [Revised: 05/29/2023] [Accepted: 06/11/2023] [Indexed: 06/19/2023]
Abstract
Obesity is a clinical condition with rising popularity and detrimental impacts on human health. According to the World Health Organization, obesity is the sixth most common cause of death worldwide. It is challenging to combat obesity because medications that are successful in the clinical investigation have harmful side effects when administered orally. The conventional approaches for treating obesity primarily entail synthetic compounds and surgical techniques but possess severe adverse effects and recurrences. As a result, a safe and effective strategy to combat obesity must be initiated. Recent studies have shown that biological macromolecules of the carbohydrate class, such as cellulose, hyaluronic acid, and chitosan, can enhance the release and efficacy of medications for obesity but due to their short biological half-lives and poor oral bioavailability, their distribution rate is affected. This helps to comprehend the need for an effective therapeutic approach via a transdermal drug delivery system. This review focuses on the transdermal administration, utilizing cellulose, chitosan, and hyaluronic acid via microneedles, as it offers a promising solution to overcome existing therapy limitations in managing obesity and it also highlights how microneedles can effectively deliver therapeutic substances through the skin's outer layer, bypassing pain receptors and specifically targeting adipose tissue.
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Affiliation(s)
- Gopika Gopan
- NITTE Deemed-to-be University, NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutics, Mangalore 575018, India
| | - Jobin Jose
- NITTE Deemed-to-be University, NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutics, Mangalore 575018, India.
| | - Kartik Bhairu Khot
- NITTE Deemed-to-be University, NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutics, Mangalore 575018, India
| | - Akshay Bandiwadekar
- NITTE Deemed-to-be University, NGSM Institute of Pharmaceutical Sciences, Department of Pharmaceutics, Mangalore 575018, India
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Drygalski K, Lecoutre S, Clément K, Dugail I. Hyaluronan in Adipose Tissue, Metabolic Inflammation, and Diabetes: Innocent Bystander or Guilty Party? Diabetes 2023; 72:159-169. [PMID: 36668999 DOI: 10.2337/db22-0676] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/03/2022] [Indexed: 01/21/2023]
Abstract
Hyaluronic acid, or hyaluronan (HA), is a nonsulfated glucosaminoglycan that has long been recognized for its hydrophilic properties and is widely used as a dermal filler. Despite much attention given to the study of other extracellular matrix (ECM) components, in the field of ECM properties and their contribution to tissue fibroinflammation, little is known of HA's potential role in the extracellular milieu. However, recent studies suggest that it is involved in inflammatory response, diet-induced insulin resistance, adipogenesis, and autoimmunity in type 1 diabetes. Based on its unique physical property as a regulator of osmotic pressure, we emphasize underestimated implications in adipose tissue function, adipogenesis, and obesity-related dysfunction.
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Affiliation(s)
- Krzysztof Drygalski
- Nutrition and Obesities: Systemic Approaches Research Group, NutriOmics, Sorbonne Université, INSERM, Paris, France
- Clinical Research Center, Medical University of Bialystok, Bialystok, Poland
| | - Simon Lecoutre
- Nutrition and Obesities: Systemic Approaches Research Group, NutriOmics, Sorbonne Université, INSERM, Paris, France
| | - Karine Clément
- Nutrition and Obesities: Systemic Approaches Research Group, NutriOmics, Sorbonne Université, INSERM, Paris, France
- Nutrition Department, Assistance Publique Hôpitaux de Paris, Centre de Recherche en Nutrition Humaine Ile-de-France, Pitié-Salpêtrière Hospital, Paris, France
| | - Isabelle Dugail
- Nutrition and Obesities: Systemic Approaches Research Group, NutriOmics, Sorbonne Université, INSERM, Paris, France
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3’UTR-Seq analysis of chicken abdominal adipose tissue reveals widespread intron retention in 3’UTR and provides insight into molecular basis of feed efficiency. PLoS One 2022; 17:e0269534. [PMID: 35776773 PMCID: PMC9249230 DOI: 10.1371/journal.pone.0269534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 05/24/2022] [Indexed: 11/19/2022] Open
Abstract
Feed efficiency (FE) is an important trait in the broiler industry due to its direct correlation to efficient muscle growth instead of fat deposition. The present study characterized and compared gene expression profiles in abdominal fat from broiler chickens of different FE levels to enhance the understanding of FE biology. Specifically, traditional whole-transcript RNA-sequencing (RNA-seq) and 3’ UTR-sequencing (3’ UTR-seq) were applied to 22 and 61 samples, respectively. Overall, these two sequencing techniques shared a high correlation (0.76) between normalized counts, although 3’ UTR-seq showed a higher variance in sequencing and mapping performance statistics across samples and a lower rate of uniquely mapped reads. A higher percentage of 3’ UTR-seq reads mapped to introns suggested the frequent presence of cleavage sites in introns, thus warranting future research to study its regulatory function. Differential expression analysis identified 1198 differentially expressed genes (DEGs) between high FE (HFE) and intermediate FE (IFE) chickens with False Discovery Rate < 0.05 and fold change > 1.2. The processes that were significantly enriched by the DEGs included extracellular matrix remodeling and mechanisms impacting gene expression at the transcriptional and translational levels. Gene ontology enrichment analysis suggested that the divergence in fat deposition and FE in broiler chickens could be associated with peroxisome and lipid metabolism possibly regulated by G0/G1 switch gene 2 (G0S2).
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Zheng Z, Lei X, Yang Y, Tan X, Cheng B, Huang W. Changes in Human Fat Injected Alongside Hyaluronic Acid in the Backs of Nude Mice. Aesthet Surg J 2021; 41:NP631-NP642. [PMID: 33326559 DOI: 10.1093/asj/sjaa351] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Cross-linked hyaluronic acid (HA) is an active anti-aging cosmetic filler. The combination of cross-linked HA and preadipocytes or adipose-derived stem cells has been previously investigated, but the effects of agglomerated cross-linked HA injection on the vascularization of fat grafts remain unclear. OBJECTIVES The aim of this study was to explore the effects of agglomerated cross-linked HA injection on the vascularization of fat grafts. METHODS The backs of nude mice were divided into 4 regions that received different treatments: nothing (control group), agglomerated Biohyalux (HA group), agglomerated fat (FAT group), and lumps formed by the sequential injection of Biohyalux and fat (HA/FAT group). Samples were collected after 1 month for weighing and hematoxylin and eosin staining, immunohistochemistry, image analysis, and Western blotting. RESULTS The weight of fat and the mean number of adipocytes in the HA/FAT group did not significantly differ from those in the FAT group. No living tissue was found in agglomerated HA. Some tiny HA particles were surrounded by tissue rich in blood vessels. The expression levels of CD31 and vascular endothelial growth factor (VEGF) in the HA/FAT group were higher than those in the FAT group, but the difference was only significant for VEGF expression. CONCLUSIONS Cross-linked HA had minimal effect on the early retention rate of surrounding fat grafts, but enhanced their vascularization. Fat grafts should be not injected into lumps of cross-linked HA. Therefore, agglomerated cross-linked HA should be dissolved before fat transplantation.
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Affiliation(s)
- Zhifang Zheng
- Department of Anatomy, School of Basic Medicine Sciences, Southern Medical University, Guangzhou, China
| | - Xiaoxuan Lei
- Department of Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
| | - Yu Yang
- Department of Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
| | - Xi Tan
- Department of Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
| | - Biao Cheng
- Department of Plastic Surgery, General Hospital of Southern Theater Command, Guangzhou, China
| | - Wenhua Huang
- Department of Anatomy, School of Basic Medicine Sciences, Southern Medical University, Guangzhou, China
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Wu KY, Kim S, Liu VM, Sabino A, Minkhorst K, Yazdani A, Turley EA. Function-Blocking RHAMM Peptides Attenuate Fibrosis and Promote Antifibrotic Adipokines in a Bleomycin-Induced Murine Model of Systemic Sclerosis. J Invest Dermatol 2020; 141:1482-1492.e4. [PMID: 33242499 DOI: 10.1016/j.jid.2019.11.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 10/28/2019] [Accepted: 11/07/2019] [Indexed: 12/29/2022]
Abstract
Systemic sclerosis a chronic, fibrotic disorder associated with high disease-specific mortality and morbidity. Cutaneous manifestations include dermal thickening and obliteration of dermal adipose tissue. Accumulation of low-molecular-weight hyaluronan, which signals through the receptor for hyaluronan-mediated motility, RHAMM, leads to progressive fibrosis and is correlated with increased severity of systemic sclerosis. The purpose of this study is to test the efficacy of two function-blocking RHAMM peptides, NPI-110 and NPI-106, in reducing skin fibrosis in a bleomycin-induced mouse model of systemic sclerosis. NPI-110 reduced visible measures of fibrosis (dermal thickness and collagen production, deposition, and organization) and profibrotic gene expression (Tgfb1, c-Myc, Col1a1, Col3a1). NPI-110 treatment also increased the expression of the antifibrotic adipokines perilipin and adiponectin. Both RHAMM peptides strongly reduced dermal RHAMM expression, predicting that dermal fibroblasts are peptide targets. Transcriptome and cell culture analyses using Rhamm-/- and Rhamm-rescued dermal fibroblasts reveal a TGFβ1/RHAMM/MYC signaling axis that promotes fibrogenic gene expression and myofibroblast differentiation. RHAMM function‒blocking peptides suppress this signaling and prevent TGFβ1-induced myofibroblast differentiation. These results suggest that inhibiting RHAMM signaling will offer a treatment method for cutaneous fibrosis in systemic sclerosis.
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Affiliation(s)
- Kitty Yuechuan Wu
- Division of Plastic and Reconstructive Surgery, Western University, London, Ontario, Canada
| | - Stephanie Kim
- Division of Plastic and Reconstructive Surgery, Western University, London, Ontario, Canada; Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Violet Muhan Liu
- Department of Biochemistry, Western University, London, Ontario, Canada
| | - Alexis Sabino
- Department of Life Sciences, Queen's University, Kingston, Ontario, Canada
| | - Kathryn Minkhorst
- Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Arjang Yazdani
- Division of Plastic and Reconstructive Surgery, Western University, London, Ontario, Canada
| | - Eva A Turley
- London Regional Cancer Program, London Health Sciences Centre, London, Ontario, Canada.
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Truong JL, Liu M, Tolg C, Barr M, Dai C, Raissi TC, Wong E, DeLyzer T, Yazdani A, Turley EA. Creating a Favorable Microenvironment for Fat Grafting in a Novel Model of Radiation-Induced Mammary Fat Pad Fibrosis. Plast Reconstr Surg 2019; 145:116-126. [PMID: 31881612 DOI: 10.1097/prs.0000000000006344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Radiofibrosis of breast tissue compromises breast reconstruction by interfering with tissue viability and healing. Autologous fat transfer may reduce radiotherapy-related tissue injury, but graft survival is compromised by the fibrotic microenvironment. Elevated expression of receptor for hyaluronan-mediated motility (RHAMM; also known as hyaluronan-mediated motility receptor, or HMMR) in wounds decreases adipogenesis and increases fibrosis. The authors therefore developed RHAMM peptide mimetics to block RHAMM profibrotic signaling following radiation. They propose that this blocking peptide will decrease radiofibrosis and establish a microenvironment favoring adipose-derived stem cell survival using a rat mammary fat pad model. METHODS Rat mammary fat pads underwent a one-time radiation dose of 26 Gy. Irradiated (n = 10) and nonirradiated (n = 10) fat pads received a single intramammary injection of a sham injection or peptide NPI-110. Skin changes were examined clinically. Mammary fat pad tissue was processed for fibrotic and adipogenic markers using quantitative polymerase chain reaction and immunohistochemical analysis. RESULTS Clinical assessments and molecular analysis confirmed radiation-induced acute skin changes and radiation-induced fibrosis in rat mammary fat pads. Peptide treatment reduced fibrosis, as detected by polarized microscopy of picrosirius red staining, increased collagen ratio of 3:1, reduced expression of collagen-1 crosslinking enzymes lysyl-oxidase, transglutaminase 2, and transforming growth factor β1 protein, and increased adiponectin, an antifibrotic adipokine. RHAMM was expressed in stromal cell subsets and was downregulated by the RHAMM peptide mimetic. CONCLUSION Results from this study predict that blocking RHAMM function in stromal cell subsets can provide a postradiotherapy microenvironment more suitable for fat grafting and breast reconstruction.
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Affiliation(s)
- Jessica L Truong
- From the Division of Plastic and Reconstructive Surgery, the Schulich School of Medicine and Dentistry, and the Department of Physics and Astronomy, Western University; and the London Regional Cancer Program, London Health Sciences Centre, Victoria Hospital
| | - Muhan Liu
- From the Division of Plastic and Reconstructive Surgery, the Schulich School of Medicine and Dentistry, and the Department of Physics and Astronomy, Western University; and the London Regional Cancer Program, London Health Sciences Centre, Victoria Hospital
| | - Cornelia Tolg
- From the Division of Plastic and Reconstructive Surgery, the Schulich School of Medicine and Dentistry, and the Department of Physics and Astronomy, Western University; and the London Regional Cancer Program, London Health Sciences Centre, Victoria Hospital
| | - Meredith Barr
- From the Division of Plastic and Reconstructive Surgery, the Schulich School of Medicine and Dentistry, and the Department of Physics and Astronomy, Western University; and the London Regional Cancer Program, London Health Sciences Centre, Victoria Hospital
| | - Cecilia Dai
- From the Division of Plastic and Reconstructive Surgery, the Schulich School of Medicine and Dentistry, and the Department of Physics and Astronomy, Western University; and the London Regional Cancer Program, London Health Sciences Centre, Victoria Hospital
| | - Thomas C Raissi
- From the Division of Plastic and Reconstructive Surgery, the Schulich School of Medicine and Dentistry, and the Department of Physics and Astronomy, Western University; and the London Regional Cancer Program, London Health Sciences Centre, Victoria Hospital
| | - Eugene Wong
- From the Division of Plastic and Reconstructive Surgery, the Schulich School of Medicine and Dentistry, and the Department of Physics and Astronomy, Western University; and the London Regional Cancer Program, London Health Sciences Centre, Victoria Hospital
| | - Tanya DeLyzer
- From the Division of Plastic and Reconstructive Surgery, the Schulich School of Medicine and Dentistry, and the Department of Physics and Astronomy, Western University; and the London Regional Cancer Program, London Health Sciences Centre, Victoria Hospital
| | - Arjang Yazdani
- From the Division of Plastic and Reconstructive Surgery, the Schulich School of Medicine and Dentistry, and the Department of Physics and Astronomy, Western University; and the London Regional Cancer Program, London Health Sciences Centre, Victoria Hospital
| | - Eva A Turley
- From the Division of Plastic and Reconstructive Surgery, the Schulich School of Medicine and Dentistry, and the Department of Physics and Astronomy, Western University; and the London Regional Cancer Program, London Health Sciences Centre, Victoria Hospital
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Wilson N, Steadman R, Muller I, Draman M, Rees DA, Taylor P, Dayan CM, Ludgate M, Zhang L. Role of Hyaluronan in Human Adipogenesis: Evidence from in-Vitro and in-Vivo Studies. Int J Mol Sci 2019; 20:ijms20112675. [PMID: 31151314 PMCID: PMC6600677 DOI: 10.3390/ijms20112675] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/21/2019] [Accepted: 05/29/2019] [Indexed: 12/19/2022] Open
Abstract
Hyaluronan (HA), an extra-cellular matrix glycosaminoglycan, may play a role in mesenchymal stem cell differentiation to fat but results using murine models and cell lines are conflicting. Our previous data, illustrating decreased HA production during human adipogenesis, suggested an inhibitory role. We have investigated the role of HA in adipogenesis and fat accumulation using human primary subcutaneous preadipocyte/fibroblasts (PFs, n = 12) and subjects of varying body mass index (BMI). The impact of HA on peroxisome proliferator-activated receptor gamma (PPARγ) expression was analysed following siRNA knockdown or HA synthase (HAS)1 and HAS2 overexpression. PFs were cultured in complete or adipogenic medium (ADM) with/without 4-methylumbelliferone (4-MU = HA synthesis inhibitor). Adipogenesis was evaluated using oil red O (ORO), counting adipogenic foci, and measurement of a terminal differentiation marker. Modulating HA production by HAS2 knockdown or overexpression increased (16%, p < 0.04) or decreased (30%, p = 0.01) PPARγ transcripts respectively. The inhibition of HA by 4-MU significantly enhanced ADM-induced adipogenesis with 1.52 ± 0.18- (ORO), 4.09 ± 0.63- (foci) and 2.6 ± 0.21-(marker)-fold increases compared with the controls, also increased PPARγ protein expression (40%, (p < 0.04)). In human subjects, circulating HA correlated negatively with BMI and triglycerides (r = −0.396 (p = 0.002), r = −0.269 (p = 0.038), respectively), confirming an inhibitory role of HA in human adipogenesis. Thus, enhancing HA action may provide a therapeutic target in obesity.
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Affiliation(s)
- Nicholas Wilson
- School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Robert Steadman
- School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Ilaria Muller
- School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Mohd Draman
- Faculty of Medicine, Universiti Sultan Zainal Abidin, Jalan Sultan Mahmud, Kuala Terengganu 20400, Malaysia.
| | - D Aled Rees
- School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Peter Taylor
- School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Colin M Dayan
- School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Marian Ludgate
- School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
| | - Lei Zhang
- School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
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Wollina U, Goldman A, Abdel-Naser MB, Philipp-Dormston WG. Adipose tissue, fillers, and skin tightening. Dermatol Ther 2018; 32:e12626. [PMID: 30175548 DOI: 10.1111/dth.12626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 05/24/2018] [Indexed: 12/15/2022]
Abstract
The role of adipose tissue has long been underestimated in esthetic dermatology. With the development of liposculpture and lipolysis, subcutaneous adipose tissue has gained an increasing interest. Harvested tissue has been used for lipofilling. In recent years, a better understanding of adipocyte physiology and its role in aging opened a new road for targeted treatments. Subcutaneous adipose tissue is no longer an innocent bystander in the combat of aging and the correction in esthetics. Adipose tissue is of importance for metabolic function and thermoregulation. Adipose tissue is involved in inflammation. Adipose tissue is heterogeneous in sense of function, color and size of adipocytes. The tissue is an important source of somatic stem cells.
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Affiliation(s)
- Uwe Wollina
- Department of Dermatology and Allergology, Academic Teaching Hospital Dresden, Dresden, Germany
| | - Alberto Goldman
- Department of Plastic Surgery, Clinica Goldman and Hospital Moinhos de Vento, Porto Alegre, Brazil
| | - Mohamed B Abdel-Naser
- Department of Dermatology and Venereology, Ain Shams University Hospital, Cairo, Egypt
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Zhu Y, Kruglikov IL, Akgul Y, Scherer PE. Hyaluronan in adipogenesis, adipose tissue physiology and systemic metabolism. Matrix Biol 2018; 78-79:284-291. [PMID: 29458140 PMCID: PMC6534160 DOI: 10.1016/j.matbio.2018.02.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 02/12/2018] [Accepted: 02/12/2018] [Indexed: 02/07/2023]
Abstract
Hyaluronic acid (HA, also known as hyaluronan), is a non-sulfated linear glycosaminoglycan polymer consisting of repeating disaccharide units of d-glucuronic acid and N-acetyl-d-glucosamine abundantly present in the extracellular matrix. The sizes of hyaluronic acid polymers range from 5000 to 20,000,000 Da in vivo, and the functions of HA are largely dictated by its size. Due to its high biocompatibility, HA has been commonly used as soft tissue filler as well as a major component of biomaterial scaffolds in tissue engineering. Several studies have implicated that HA may promote differentiation of adipose tissue derived stem cells in vitro or in vivo when used as a supporting scaffold. However, whether HA actually promotes adipogenesis in vivo and the subsequent metabolic effects of this process are unclear. This review summarizes some recent publications in the field and discusses the possible directions and approaches for future studies, focusing on the role of HA in the adipose tissue.
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Affiliation(s)
- Yi Zhu
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | | | - Yucel Akgul
- Department of Plastic Surgery, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Philipp E Scherer
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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11
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An SM, Seong KY, Yim SG, Hwang YJ, Bae SH, Yang SY, An BS. Intracutaneous delivery of gelatins induces lipolysis and suppresses lipogenesis of adipocytes. Acta Biomater 2018; 67:238-247. [PMID: 29208554 DOI: 10.1016/j.actbio.2017.11.050] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/24/2017] [Accepted: 11/28/2017] [Indexed: 12/21/2022]
Abstract
Due to growing interest in cosmetics and medical applications, therapeutic medications that reduce the amount of local subcutaneous adipose tissue have potential for obesity treatment. However, conventional methods such as surgical operation are restricted due to risk of complications. Here, we report a simple and effective method for local reduction of subcutaneous adipose tissue (AT) by using microneedle-assisted transdermal delivery of natural polymers. After in vitro screening tests, gelatin was selected as a therapeutic polymer to reduce accumulation of AT. An in vitro study showed that the level of released glycerol as an indicator of lipolysis was elevated in isolated adipocytes after gelatin treatment. In addition, gelatins suppressed expression levels of lipogenesis-associated genes. Following application of gelatin microneedle (GMN) patches to high-fat diet (HD)-induced obese rats, the amount of subcutaneous AT at the site of GMN application was significantly reduced, which was also confirmed by histological analysis and micro-computed tomography scanning. In addition, lipogenesis-associated genes were down-regulated in GMN-treated subcutaneous AT. These findings suggest that GMN patches induce lipolysis and simultaneously inhibit lipogenesis, thereby reducing deposition of subcutaneous AT. This platform using GMNs may provide a new strategy to treat excess subcutaneous AT with minimal complications. STATEMENT OF SIGNIFICANCE: (1) Significance This work reports a new approach for the local reduction of subcutaneous adipose tissue using a dissolving microneedle patch prepared using gelatin to enable suppression of lipogenesis and acceleration of lipolysis in adipocytes. The gelatin microneedle patch exhibited a significant reduction of local subcutaneous fat up to 60% compared to control groups without any change in total weight. (2) Scientific impact This is the first report demonstrating the direct anti-obesity effects of gelatin administrated in a transdermal route and the feasibility of natural polymer therapeutics for regional reduction of subcutaneous fat. We believe that our work will excite interdisciplinary readers of Acta Biomaterialia, those who are interested in the natural polymers, drug delivery, and obesity.
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Affiliation(s)
- Sung-Min An
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Keum-Yong Seong
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Sang-Gu Yim
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Young Jun Hwang
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Seong Hwan Bae
- Department of Plastic and Reconstructive Surgery, Pusan National University, Busan 46241, Republic of Korea
| | - Seung Yun Yang
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea.
| | - Beum-Soo An
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea.
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Wollina U, Goldman A, Tchernev G. Fillers and Facial Fat Pads. Open Access Maced J Med Sci 2017; 5:403-408. [PMID: 28785319 PMCID: PMC5535644 DOI: 10.3889/oamjms.2017.117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 05/11/2017] [Accepted: 05/12/2017] [Indexed: 12/11/2022] Open
Abstract
Fillers are used for facial sculpturing and anti-ageing treatments with increasing popularity. The optimal outcome of any filler treatment depends upon different factors: exact indication, known limitations, filler product, and filler placement. For volumizing effect and longevity of procedures, however, the interaction of fillers and facial fat pads seems to be crucial. Here, we will review the optimum filler injections for facial applications in relationship to new data and concepts concerning facial fat pads anatomy and physiology. Such a view will us enable to provide optimum results in aesthetic procedures.
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Affiliation(s)
- Uwe Wollina
- Department of Dermatology and Allergology, Academic Teaching Hospital Dresden-Friedrichstadt, Dresden, Germany
| | | | - Georgi Tchernev
- Department of Dermatology, Venereology and Dermatologic Surgery, Medical Institute of Ministry of Interior, and Onkoderma Policlinic for Dermatology and Dermatologic Surgery, Sofia, Bulgaria
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Bahrami SB, Tolg C, Peart T, Symonette C, Veiseh M, Umoh JU, Holdsworth DW, McCarthy JB, Luyt LG, Bissell MJ, Yazdani A, Turley EA. Receptor for hyaluronan mediated motility (RHAMM/HMMR) is a novel target for promoting subcutaneous adipogenesis. Integr Biol (Camb) 2017; 9:223-237. [PMID: 28217782 DOI: 10.1039/c7ib00002b] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hyaluronan, CD44 and the Receptor for Hyaluronan-Mediated Motility (RHAMM, gene name HMMR) regulate stem cell differentiation including mesenchymal progenitor differentiation. Here, we show that CD44 expression is required for subcutaneous adipogenesis, whereas RHAMM expression suppresses this process. We designed RHAMM function blocking peptides to promote subcutaneous adipogenesis as a clinical and tissue engineering tool. Adipogenic RHAMM peptides were identified by screening for their ability to promote adipogenesis in culture assays using rat bone marrow mesenchymal stem cells, mouse pre-adipocyte cell lines and primary human subcutaneous pre-adipocytes. Oil red O uptake into fat droplets and adiponectin production were used as biomarkers of adipogenesis. Positive peptides were formulated in either collagen I or hyaluronan (Orthovisc) gels then assessed for their adipogenic potential in vivo following injection into dorsal rat skin and mammary fat pads. Fat content was quantified and characterized using micro CT imaging, morphometry, histology, RT-PCR and ELISA analyses of adipogenic gene expression. Injection of screened peptides increased dorsal back subcutaneous fat pad area (208.3 ± 10.4 mm2versus control 84.11 ± 4.2 mm2; p < 0.05) and mammary fat pad size (45 ± 11 mg above control background, p = 0.002) in female rats. This effect lasted >5 weeks as detected by micro CT imaging and perilipin 1 mRNA expression. RHAMM expression suppresses while blocking peptides promote expression of PPARγ, C/EBP and their target genes. Blocking RHAMM function by peptide injection or topical application is a novel and minimally invasive method for potentially promoting subcutaneous adipogenesis in lipodystrophic diseases and a complementary tool to subcutaneous fat augmentation techniques.
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Affiliation(s)
- S B Bahrami
- Biological Systems and Engineering Division, BioSciences Area, Lawrence Berkeley National Laboratories, 977R225A, Berkeley, CA 94720, USA
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Roh K, Cho S, Park JH, Yoo BC, Kim WK, Kim SK, Park K, Kang H, Ku JM, Yeom CH, Lee K, Lee S. Therapeutic effects of hyaluronidase on acquired lymphedema using a newly developed mouse limb model. Exp Biol Med (Maywood) 2017; 242:584-592. [PMID: 28092183 DOI: 10.1177/1535370216688570] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Acquired lymphedema is one of the most dreaded side effects of cancer treatment, such as surgical treatment or irradiation. However, due to the lack of appropriate animal models, there is no effective therapeutic method to cure acquired lymphedema. To develop a reproducible acquired lymphedema animal model, we devised a mouse hind limb model by removing a superficial inguinal lymph node, a popliteal lymph node, a deep inguinal lymph node, and the femoral lymphatic vessel. We measured the volume of lymphedematous leg and observed the change in level of hyaluronic acid (HA) and lymphangiogenic factors after injecting hyaluronidase. Our model showed the distinguishable swelling and the reliable symptoms compared to previously reported models. In the lymphedematous regions of our model, we confirmed that HA, a major component of extracellular matrix, accumulated to higher levels than in a normal mouse. This lymphedema volume was rapidly reduced by treating hyaluronidase. Following hyaluronidase injection, the lymphedematous region of our model resembled a normal hind limb. Our findings indicated that hyaluronidase promoted lymphangiogenesis on the lymphedematous limb. Based on hyaluronidase treatment in the lymphedematous region, this could potentially be a new therapeutic approach for acquired lymphedema mediated through the modification of the size of HA fragments. Impact statement In this manuscript, the essence of the work described in this manuscript involves the development of (1) a mouse limb model showing acquired lymphedema and (2) a potent therapeutic treatment using hyaluronidase to remedy acquired lymphedema in our model. In order to develop a reproducible acquired lymphedema animal model that reflects the most common symptoms experienced by lymphedema patients, we devised a mouse hind limb model by removing lymph nodes and lymphatics. Our model showed the distinguishable swelling and the reliable symptoms compared to previously reported models. In the lymphedematous regions of our model, we confirmed that hyaluronic acid (HA) accumulated to higher levels than in a normal mouse. This lymphedema volume was rapidly reduced by treating the lymphedematous leg with hyaluronidase, which also degraded high molecular weight HA to low molecular weight HA. Immunohistochemical analysis, quantitative real-time PCR analysis and lymphangioscintigraphy showed that hyaluronidase enhanced lymphangiogenesis in the lymphedematous limb.
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Affiliation(s)
- Kangsan Roh
- 1 Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Sungrae Cho
- 1 Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Jae-Hyun Park
- 1 Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Byong Chul Yoo
- 2 Colorectal Cancer Branch, Division of Translational and Clinical Research I, Research Institute, National Cancer Center, Goyang 410-769, Republic of Korea
| | - Won-Ki Kim
- 2 Colorectal Cancer Branch, Division of Translational and Clinical Research I, Research Institute, National Cancer Center, Goyang 410-769, Republic of Korea
| | - Seok-Ki Kim
- 3 Molecular Imaging & Therapy Branch, National Cancer Center, Goyang 410-769, Republic of Korea
| | - Kyewon Park
- 4 Department of Food Science and Biotechnology, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Hee Kang
- 5 Department of Oriental Medical Science, Graduate School of East-West Medicine, Kyunghee University, Secheondong, Yongin 446-701, Republic of Korea
| | - Jin-Mo Ku
- 6 Natural Products Research Department, Gyeonggi Institute of Science & Technology, Suwon 443-270, Republic of Korea
| | | | - Kyunghoon Lee
- 8 Department of Anatomy, School of Medicine, Sungkyunkwan University, Suwon 440-746, Republic of Korea
| | - Sukchan Lee
- 1 Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
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15
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Kruglikov IL, Scherer PE. Skin aging: are adipocytes the next target? Aging (Albany NY) 2016; 8:1457-69. [PMID: 27434510 PMCID: PMC4993342 DOI: 10.18632/aging.100999] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 07/07/2016] [Indexed: 01/09/2023]
Abstract
Dermal white adipose tissue (dWAT) is increasingly appreciated as a special fat depot. The adipocytes in this depot exert a variety of unique effects on their surrounding cells and can undergo massive phenotypic changes. Significant modulation of dWAT content can be observed both in intrinsically and extrinsically aged skin. Specifically, skin that has been chronically photo-damaged displays a reduction of the dWAT volume, caused by the replacement of adipocytes by fibrotic structures. This is likely to be caused by the recently uncovered process described as "adipocyte-myofibroblast transition" (AMT). In addition, contributions of dermal adipocytes to the skin aging processes are also indirectly supported by spatial correlations between the prevalence of hypertrophic scarring and the appearance of signs of skin aging in different ethnic groups. These observations could elevate dermal adipocytes to prime targets in strategies aimed at counteracting skin aging.
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Affiliation(s)
| | - Philipp E. Scherer
- Touchstone Diabetes Center, Departments of Internal Medicine and Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
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Anti-obesity potential of enzymatic fragments of hyaluronan on high-fat diet-induced obesity in C57BL/6 mice. Biochem Biophys Res Commun 2016; 473:290-295. [PMID: 27012203 DOI: 10.1016/j.bbrc.2016.03.098] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 03/20/2016] [Indexed: 11/22/2022]
Abstract
Hyaluronan has diverse biological activities depending on its molecular size. The hyaluronan fragments (50 kDa) can decrease adipogenic differentiation in vitro. However, in vivo anti-obesitic effects of hyaluronan fragments have not been elucidated. Therefore, we examined the anti-obesity effects of hyaluronan fragments on high-fat diet induced obesity in C57BL/6 mice. Oral administration of hyaluronan fragments (200 mg/kg for 8 weeks) decreased body weight, adipose tissues, serum lipid (low-density lipoprotein cholesterol, triglyceride), and leptin level. Hyaluronan fragments decreased the hypertrophy of adipose tissue and ameliorated liver steatosis. The mRNA expression of leptin was reduced in adipocyte by treatment with hyaluronan fragments. Additionally, hyaluronan fragments enhanced the mRNA expression of PPAR-α and its target genes UCP-2 and decreased mRNA expression of PPAR- γ and fatty acid synthase in liver. In conclusions, hyaluronan fragments had marked effects on inhibiting the development of obesity in obese mice fed the high-fat diet. It suggested that enhancing PPAR-α and suppressing PPAR-γ expression are two possible mechanisms for the anti-obesitic effect of hyaluronan fragments.
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Zhu Y, Crewe C, Scherer PE. Hyaluronan in adipose tissue: Beyond dermal filler and therapeutic carrier. Sci Transl Med 2016; 8:323ps4. [PMID: 26819194 DOI: 10.1126/scitranslmed.aad6793] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Adipose hyaluronan is increasingly recognized as an active player in adipose tissue fibrosis and metabolic dysfunction. However, this role poses as many challenges as opportunities for therapeutic targeting of adipose tissue dysfunction during nutrient oversupply.
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Affiliation(s)
- Yi Zhu
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. LIFA Diabetes, Lilly Research Laboratories, Division of Eli Lilly and Company, Indianapolis, IN 46285, USA
| | - Clair Crewe
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Philipp E Scherer
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA. Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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