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Brown S, Dayan JH, Kataru RP, Mehrara BJ. The Vicious Circle of Stasis, Inflammation, and Fibrosis in Lymphedema. Plast Reconstr Surg 2023; 151:330e-341e. [PMID: 36696336 PMCID: PMC9881755 DOI: 10.1097/prs.0000000000009866] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
SUMMARY Lymphedema is a progressive disease of the lymphatic system arising from impaired lymphatic drainage, accumulation of interstitial fluid, and fibroadipose deposition. Secondary lymphedema resulting from cancer treatment is the most common form of the disease in developed countries, affecting 15% to 40% of patients with breast cancer after lymph node dissection. Despite recent advances in microsurgery, outcomes remain variable and, in some cases, inadequate. Thus, development of novel treatment strategies is an important goal. Research over the past decade suggests that lymphatic injury initiates a chronic inflammatory response that regulates the pathophysiology of lymphedema. T-cell inflammation plays a key role in this response. In this review, the authors highlight the cellular and molecular mechanisms of lymphedema and discuss promising preclinical therapies.
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Affiliation(s)
- Stav Brown
- From the Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center
| | - Joseph H Dayan
- From the Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center
| | - Raghu P Kataru
- From the Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center
| | - Babak J Mehrara
- From the Plastic and Reconstructive Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center
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2
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Sano M, Hirakawa S, Sasaki T, Inuzuka K, Katahashi K, Kayama T, Yamanaka Y, Tsuyuki H, Endo Y, Naruse E, Yokoyama Y, Sato K, Yamauchi K, Takeuchi H, Unno N. Role of Subcutaneous Adipose Tissues in the Pathophysiology of Secondary Lymphedema. Lymphat Res Biol 2022; 20:593-599. [PMID: 35394362 DOI: 10.1089/lrb.2021.0054] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background: Secondary lymphedema (LE) occurs due to the disruption of lymphatic circulation. Lymphatic fluid accumulation in subcutaneous tissues induces adipocyte proliferation. Obesity is an important risk factor for the occurrence and deterioration of LE. Although the relationship between LE and subcutaneous adipose tissue increase has been reported clinically, their pathophysiological relationship remains unknown. Thus, we aimed to verify whether subcutaneous adipose tissue increase is involved in the pathophysiology of secondary LE. Methods and Results: The hindlimb model of secondary LE was created using male Sprague-Dawley rats (control and LE groups; n = 5 each). Skin samples were obtained on postoperative day 168. Histological examination and quantitative real-time polymerase chain reaction analysis of inflammatory adipokines, tumor necrosis factor-alpha (Tnf-α), C-C chemokine ligand 2 (Ccl2), and interleukin-6 (Il-6) were performed. Limb volume and subcutaneous adipose tissues significantly increased in the LE group compared with those in the control. Macrophages aggregated in the augmented adipose tissues, around the adipocytes, and formed crown-like structures (CLSs). The number of CLSs significantly increased in the LE group. These macrophages expressed transforming growth factor-beta 1 (TGF-β1). Inflammatory adipokine secretion was not observed. Although Il-6 expression increased in the LE group, IL-6 was expressed in subcutaneous myofibroblasts but not in subcutaneous adipocytes. Conclusion: As TGF-β1 derived from subcutaneous myofibroblasts is involved in skin fibrosis during LE, TGF-β1 derived from adipose tissues may also play a similar role. Drug treatment for subcutaneous adipose tissue reduction may improve the skin condition in secondary LE and may be a new therapeutic strategy.
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Affiliation(s)
- Masaki Sano
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Satoshi Hirakawa
- Preeminent Medical Photonics Education and Research Center Institute for NanoSuit Research, Departments of Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Takeshi Sasaki
- Anatomy and Neuroscience and Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kazunori Inuzuka
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kazuto Katahashi
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Takafumi Kayama
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yuta Yamanaka
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hajime Tsuyuki
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yusuke Endo
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Ena Naruse
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yurina Yokoyama
- Rehabilitation, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kohji Sato
- Anatomy and Neuroscience and Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Katsuya Yamauchi
- Rehabilitation, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hiroya Takeuchi
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Naoki Unno
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
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3
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Poojari A, Dev K, Rabiee A. Lipedema: Insights into Morphology, Pathophysiology, and Challenges. Biomedicines 2022; 10:biomedicines10123081. [PMID: 36551837 PMCID: PMC9775665 DOI: 10.3390/biomedicines10123081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/26/2022] [Accepted: 11/28/2022] [Indexed: 12/02/2022] Open
Abstract
Lipedema is an adipofascial disorder that almost exclusively affects women. Lipedema leads to chronic pain, swelling, and other discomforts due to the bilateral and asymmetrical expansion of subcutaneous adipose tissue. Although various distinctive morphological characteristics, such as the hyperproliferation of fat cells, fibrosis, and inflammation, have been characterized in the progression of lipedema, the mechanisms underlying these changes have not yet been fully investigated. In addition, it is challenging to reduce the excessive fat in lipedema patients using conventional weight-loss techniques, such as lifestyle (diet and exercise) changes, bariatric surgery, and pharmacological interventions. Therefore, lipedema patients also go through additional psychosocial distress in the absence of permanent treatment. Research to understand the pathology of lipedema is still in its infancy, but promising markers derived from exosome, cytokine, lipidomic, and metabolomic profiling studies suggest a condition distinct from obesity and lymphedema. Although genetics seems to be a substantial cause of lipedema, due to the small number of patients involved in such studies, the extrapolation of data at a broader scale is challenging. With the current lack of etiology-guided treatments for lipedema, the discovery of new promising biomarkers could provide potential solutions to combat this complex disease. This review aims to address the morphological phenotype of lipedema fat, as well as its unclear pathophysiology, with a primary emphasis on excessive interstitial fluid, extracellular matrix remodeling, and lymphatic and vasculature dysfunction. The potential mechanisms, genetic implications, and proposed biomarkers for lipedema are further discussed in detail. Finally, we mention the challenges related to lipedema and emphasize the prospects of technological interventions to benefit the lipedema community in the future.
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4
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Buso G, Favre L, Maufus M, Honorati M, Lessert C, Depairon M, Raffoul W, Tomson D, Mazzolai L. Indocyanine green lymphography as novel tool to assess lymphatics in patients with lipedema. Microvasc Res 2021; 140:104298. [PMID: 34896377 DOI: 10.1016/j.mvr.2021.104298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/11/2021] [Accepted: 12/02/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Lipedema is a chronic and progressive disease associated with lymphatic impairment at later stages. The aim of our study was to describe the functional status and anatomy of lower limb superficial lymphatic system using indocyanine green (ICG) lymphography in patients with lipedema. METHODS Following ICG injection at the dorsum of the foot, distance (cm) covered by the dye at 10 (T10') and 25 min (T25') was measured and normalized for limb length. If the dye did not reach the groin within 25 min, patients were classified as "drainage-needing" group (DNG). Values of fat and lean distribution assessed by dual-energy X-ray absorptiometry were extracted, and correlation analysis was performed. Furthermore, anatomical patterns of superficial lymphatics were assessed. RESULTS Overall, 45 women were included, 25 (56%) of whom were classified as DNG. Symptoms duration was significantly associated with DNG status at multivariate analysis (odds ratio 1.07; 95% CI 1.01-1.14; p = 0.047). Moreover, Spearman's analysis showed a negative correlation between symptoms duration and T25' dye migration (r = -0.469; p = 0.037). Overall, no major anatomical lymphatic changes were found. CONCLUSIONS Present study suggests that lymphatic functioning in patients with lipedema correlates with symptoms duration. Further research on larger cohorts should verify our findings and clarify their potential therapeutic implications. Overall, ICG lymphography may be promising technique to assess both lymphatic anatomy and functioning in patients with lipedema.
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Affiliation(s)
- Giacomo Buso
- Angiology Division, Heart and Vessel Department, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Lucie Favre
- Endocrinology, Diabetology and Metabolism Division, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Mario Maufus
- Angiology Division, Heart and Vessel Department, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Marcella Honorati
- Angiology Division, Heart and Vessel Department, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Claudia Lessert
- Angiology Division, Heart and Vessel Department, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Michèle Depairon
- Angiology Division, Heart and Vessel Department, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Wassim Raffoul
- Plastic surgery Division, Locomotor system Department, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Didier Tomson
- Angiology Division, Heart and Vessel Department, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Lucia Mazzolai
- Angiology Division, Heart and Vessel Department, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland.
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5
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Cellina M, Gibelli D, Martinenghi C, Giardini D, Soresina M, Menozzi A, Oliva G, Carrafiello G. Non-contrast magnetic resonance lymphography (NCMRL) in cancer-related secondary lymphedema: acquisition technique and imaging findings. Radiol Med 2021; 126:1477-1486. [PMID: 34379302 DOI: 10.1007/s11547-021-01410-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/04/2021] [Indexed: 11/24/2022]
Abstract
Cancer-related secondary lymphedema (LE) is a widespread issue, which markedly affects patients' quality of life. Its diagnosis is mainly clinical since there is no consensus on the best imaging technique that should be used to assess this pathology. Even if lymphedema treatment has been traditionally conservative and mainly based on compressive bandages and decongestive therapy, new surgical techniques are proving their effectiveness in the management of the disease and made proper assessment and characterization of lymphedema necessary. In this scenario, non-contrast magnetic resonance lymphography (NCMRL) is acquiring an increasing role, as a non-invasive imaging technique, useful for the analysis of LE. NCMRL is an effective tool in diagnosis confirmation, in providing information about the structural changes of the affected limbs, in grading this disorder, and provides a guide for LE management and treatment planning. This article aims to provide an overview of the literature regarding this examination, analyzing the acquisition technique, the interpretation of the imaging findings and their usefulness, the advantages and limits of this technique, to help the radiologist approach this relatively new investigation in cases of cancer-related LE.
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Affiliation(s)
- Michaela Cellina
- Department of Radiology, ASST Fatebenefratelli Sacco, Ospedale Fatebenefratelli, Piazza Principessa Clotilde 3, 20121, Milan, Italy.
| | - Daniele Gibelli
- Dipartimento Di Scienze Biomediche Per La Salute, Università Degli Studi Di Milano, Via Mangiagalli 31, 20133, Milan, Italy
| | - Carlo Martinenghi
- Department of Radiology, Ospedale San Raffaele, Via Olgettina 60, 20121, Milan, Italy
| | - Denisa Giardini
- Lymphedema Center, Nursing Home "La Madonnina", Via Quadronno, 29, 20122, Milan, Italy
| | - Massimo Soresina
- Lymphedema Center, Nursing Home "La Madonnina", Via Quadronno, 29, 20122, Milan, Italy
| | - Andrea Menozzi
- Lymphedema Center, Nursing Home "La Madonnina", Via Quadronno, 29, 20122, Milan, Italy
| | - Giancarlo Oliva
- Department of Radiology, ASST Fatebenefratelli Sacco, Ospedale Fatebenefratelli, Piazza Principessa Clotilde 3, 20121, Milan, Italy
| | - Gianpaolo Carrafiello
- Department of Radiology, Policlinico Di Milano Ospedale Maggiore | Fondazione IRCCS Ca' Granda, Via Francesco Sforza, 35, 20122, Milan, Italy
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6
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Abstract
Lymphedema is caused by dysfunctional lymph vessels or as a complication of cancer treatment leading to edema and adipose tissue deposition. One hypothesis is that adipocyte hypertrophy contributes to the volume increase in lymphedema. The aim of the study was to compare adipocyte size in arm and leg lymphedema and controls. The adipocyte size difference was also compared between the arms and legs. Furthermore, any link between adipocyte size difference and gender, lymphedema onset, duration, previous radio- and chemotherapy was studied, as well as any relationship to total excess volume increase in the extremities, body mass index (BMI) and body weight. Adipose tissue biopsies from the lymphedematous and non-affected extremities were taken from 47 patients. The adipocytes sizes were measured using an Olympus PROVIS microscope, Olympus DP50 camera (Olympus, Tokyo, Japan) and ImageJ program (NIH, Bethesda, MD). Additional information was obtained from the Lymphedema Center database. The data were assembled in Excel and statistics was calculated in SPSS® Statistics 23 (IBM®, Armonk, NY). The adipocyte size (mean ± SEM) in the lymphedematous extremities was significantly larger, 8880 ± 291 μm2, compared to the adipocyte size in the non-affected extremities, where it was 7143 ± 280 μm2, i.e. 24% larger (p < .001). The adipocyte size increase was larger in arm than in leg lymphedema. No correlation was found between adipocyte size and gender or onset. However, a negative correlation was found between adipocyte size difference and duration. No correlation was found between adipocyte size and previous chemo- or radiotherapy. There was a positive correlation between adipocyte size and BMI. Hypertrophy of adipocytes was seen in the lymphedematous extremities versus control and contributes to the excess volume.
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Affiliation(s)
- Jenny Zhang
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Mattias Hoffner
- Department of Clinical Sciences, Lund University, Malmö, Sweden.,Department of Surgery, Blekinge Hospital, Karlskrona, Sweden
| | - Håkan Brorson
- Department of Clinical Sciences, Lund University, Malmö, Sweden.,Department of Plastic and Reconstructive Surgery, Skåne University Hospital, Malmö, Sweden
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7
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Allen M, Schwartz M, Herbst KL. Interstitial Fluid in Lipedema and Control Skin. ACTA ACUST UNITED AC 2020; 1:480-487. [PMID: 33786515 PMCID: PMC7784769 DOI: 10.1089/whr.2020.0086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2020] [Indexed: 01/08/2023]
Abstract
Background: Fluid in lymphedema tissue appears histologically as spaces around vessels and between dermal skin fibers. Lipedema is a painful disease of excess loose connective tissue (fat) in limbs, almost exclusively of women, that worsens by stage, increasing lymphedema risk. Many women with lipedema have hypermobile joints suggesting a connective tissue disorder that may affect vessel structure and compliance of tissue resulting in excess fluid entering the interstitial space. It is unclear if excess fluid is present in lipedema tissue. The purpose of this study is to determine if fluid accumulates around vessels and between skin fibers in the thigh tissue of women with lipedema. Methods: Skin biopsies from the thigh and abdomen from 30 controls and 80 women with lipedema were evaluated for dermal spaces and abnormal vessel phenotype (AVP): (1) rounded endothelial cells; (2) perivascular spaces; and (3) perivascular immune cell infiltrate. Women matched for body mass index (BMI) and age were considered controls if they did not have lipedema on clinical examination. Data were analyzed by analysis of variance (ANOVA) or unpaired t-tests using GraphPad Prism Software 7. p < 0.05 was considered significant. Results: Lipedema tissue mass increases beginning with Stage 1 up to Stage 3, with lipedema fat accumulating more on the limbs than the abdomen. AVP was higher in lipedema thigh (p = 0.003) but not abdomen skin compared with controls. AVP was higher in thigh skin of women with Stage 1 (p = 0.001) and Stage 2 (p = 0.03) but not Stage 3 lipedema versus controls. AVP also was greater in the thigh skin of women with lipedema without obesity versus lipedema with obesity (p < 0.0001). Dermal space was increased in lipedema thigh (p = 0.0003) but not abdomen versus controls. Dermal spaces were also increased in women with lipedema Stage 3 (p < 0.0001) and Stage 2 (p = 0.0007) compared with controls. Conclusion: Excess interstitial fluid in lipedema tissue may originate from dysfunctional blood vessels (microangiopathy). Increased compliance of connective tissue in higher stages of lipedema may allow fluid to disperse into the interstitial space, including between skin dermal fibers. Lipedema may be an early form of lymphedema. ClinicalTrials.gov: NCT02838277.
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Affiliation(s)
- Marisol Allen
- Department of Medicine, TREAT Program, University of Arizona, Tucson, Arizona, USA
| | | | - Karen L Herbst
- Department of Medicine, TREAT Program, University of Arizona, Tucson, Arizona, USA.,Herbst Clinic, Tucson, Arizona, USA.,Limitless Therapeutics and Karen L. Herbst MD, PC, Los Angeles, California, USA
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8
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Oliver G, Kipnis J, Randolph GJ, Harvey NL. The Lymphatic Vasculature in the 21 st Century: Novel Functional Roles in Homeostasis and Disease. Cell 2020; 182:270-296. [PMID: 32707093 PMCID: PMC7392116 DOI: 10.1016/j.cell.2020.06.039] [Citation(s) in RCA: 365] [Impact Index Per Article: 91.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/17/2020] [Accepted: 06/25/2020] [Indexed: 12/19/2022]
Abstract
Mammals have two specialized vascular circulatory systems: the blood vasculature and the lymphatic vasculature. The lymphatic vasculature is a unidirectional conduit that returns filtered interstitial arterial fluid and tissue metabolites to the blood circulation. It also plays major roles in immune cell trafficking and lipid absorption. As we discuss in this review, the molecular characterization of lymphatic vascular development and our understanding of this vasculature's role in pathophysiological conditions has greatly improved in recent years, changing conventional views about the roles of the lymphatic vasculature in health and disease. Morphological or functional defects in the lymphatic vasculature have now been uncovered in several pathological conditions. We propose that subtle asymptomatic alterations in lymphatic vascular function could underlie the variability seen in the body's response to a wide range of human diseases.
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Affiliation(s)
- Guillermo Oliver
- Center for Vascular and Developmental Biology, Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
| | - Jonathan Kipnis
- Center for Brain Immunology and Glia (BIG), University of Virginia, Charlottesville, VA 22908, USA; Department of Neuroscience, University of Virginia, Charlottesville, VA 22908, USA
| | - Gwendalyn J Randolph
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Natasha L Harvey
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA, Australia
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9
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SVF-derived extracellular vesicles carry characteristic miRNAs in lipedema. Sci Rep 2020; 10:7211. [PMID: 32350368 PMCID: PMC7190633 DOI: 10.1038/s41598-020-64215-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 04/08/2020] [Indexed: 12/15/2022] Open
Abstract
Lipedema is a chronic, progressive disease of adipose tissue with lack of consistent diagnostic criteria. The aim of this study was a thorough comparative characterization of extracellular microRNAs (miRNAs) from the stromal vascular fraction (SVF) of healthy and lipedema adipose tissue. For this, we analyzed 187 extracellular miRNAs in concentrated conditioned medium (cCM) and specifically in small extracellular vesicles (sEVs) enriched thereof by size exclusion chromatography. No significant difference in median particle size and concentration was observed between sEV fractions in healthy and lipedema. We found the majority of miRNAs located predominantly in cCM compared to sEV enriched fraction. Surprisingly, hierarchical clustering of the most variant miRNAs showed that only sEVmiRNA profiles – but not cCMmiRNAs – were impacted by lipedema. Seven sEVmiRNAs (miR–16-5p, miR-29a-3p, miR-24-3p, miR-454-p, miR–144-5p, miR-130a-3p, let-7c-5p) were differently regulated in lipedema and healthy individuals, whereas only one cCMmiRNA (miR-188-5p) was significantly downregulated in lipedema. Comparing SVF from healthy and lipedema patients, we identified sEVs as the lipedema relevant miRNA fraction. This study contributes to identify the potential role of SVF secreted miRNAs in lipedema.
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10
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Adipose Stem Cells from Lipedema and Control Adipose Tissue Respond Differently to Adipogenic Stimulation In Vitro. Plast Reconstr Surg 2020; 144:623-632. [PMID: 31461015 DOI: 10.1097/prs.0000000000005918] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Lipedema is characterized by localized accumulation of fat in the extremities, which is typically unresponsive to dietary regimens or physical activity. Although the disease is well described and has a high incidence, little is known regarding the molecular and cellular mechanisms underlying its pathogenesis. The aim of this study was to investigate the pathophysiology of lipedema adipose cells in vitro. METHODS Adipose-derived stem cells were isolated from lipoaspirates derived from lipedema and nonlipedema patients undergoing tumescent liposuction. In vitro differentiation studies were performed for up to 14 days using adipogenic or regular culture medium. Supernatants and cell lysates were tested for adiponectin, leptin, insulin-like growth factor-1, aromatase (CYP19A1), and interleukin-8 content at days 7 and 14, using enzyme-linked immunosorbent assays. Adipogenesis was evaluated by visualizing and measuring cytoplasmic lipid accumulation. RESULTS Lipedema adipose-derived stem cells showed impeded adipogenesis already at early stages of in vitro differentiation. Concomitant with a strongly reduced cytoplasmic lipid accumulation, significantly lower amounts of adiponectin and leptin were detectable in supernatants from lipedema adipose-derived stem cells and adipocytes compared with control cells. In addition, lipedema and nonlipedema cells differed in their expression of insulin-like growth factor-1, aromatase (CYP19A1), and interleukin-8 and in their proliferative activity. CONCLUSIONS The authors' findings indicate that in vitro adipogenesis of lipedema adipose-derived stem cells is severely hampered compared with nonlipedema adipose-derived stem cells. Lipedema adipose cells differ not only in their lipid storage capacity but also in their adipokine expression pattern. This might serve as a valuable marker for diagnosis of lipedema, probably from an early stage on.
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11
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Beltran K, Wadeea R, Herbst KL. Infections preceding the development of Dercum disease. IDCases 2019; 19:e00682. [PMID: 31908946 PMCID: PMC6940691 DOI: 10.1016/j.idcr.2019.e00682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/10/2019] [Accepted: 12/10/2019] [Indexed: 11/23/2022] Open
Abstract
Dercum Disease (DD) is a rare inflammatory disease of painful subcutaneous fat masses with known alterations in lymphatic vessels. DD masses vary from pearl to walnut-size or larger and occur anywhere in body fat. Signs and symptoms of DD are similar to fibromyalgia. While the etiology of DD is unknown, metabolic, autoimmune, or autosomal genetic transmission has been proposed. This series presents 7 cases where DD followed an infection either histoplasmosis, coccidioidomycosis or Lyme disease. Known changes in fat by infectious agents are reviewed. Early diagnosis and treatment of infections may prevent further damage to fat.
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Affiliation(s)
- Karen Beltran
- College of Medicine, University of Arizona, 1625 N Campbell Ave, Tucson, Arizona, 85724, United States
| | - Rita Wadeea
- College of Medicine, University of Arizona, 1625 N Campbell Ave, Tucson, Arizona, 85724, United States
| | - Karen L Herbst
- College of Medicine, University of Arizona, 1625 N Campbell Ave, Tucson, Arizona, 85724, United States
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12
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Buso G, Depairon M, Tomson D, Raffoul W, Vettor R, Mazzolai L. Lipedema: A Call to Action! Obesity (Silver Spring) 2019; 27:1567-1576. [PMID: 31544340 PMCID: PMC6790573 DOI: 10.1002/oby.22597] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 05/30/2019] [Indexed: 01/31/2023]
Abstract
Lipedema is a chronic progressive disease characterized by abnormal fat distribution resulting in disproportionate, painful limbs. It almost exclusively affects women, leading to considerable disability, daily functioning impairment, and psychosocial distress. Literature shows both scarce and conflicting data regarding its prevalence. Lipedema has been considered a rare entity by several authors, though it may be a far more frequent condition than thought. Despite the clinical impact on women's health, lipedema is in fact mostly unknown, underdiagnosed, and too often misdiagnosed with other similarly presenting diseases. Polygenic susceptibility combined with hormonal, microvascular, and lymphatic disorders may be partly responsible for its development. Furthermore, consistent information on lipedema pathophysiology is still lacking, and an etiological treatment is not yet available. Weight loss measures exhibit minimal effect on the abnormal body fat distribution, resulting in eating disorders, increased obesity risk, depression, and other psychological complaints. Surgical techniques, such as liposuction and excisional lipectomy, represent therapeutic options in selected cases. This review aims to outline current evidence regarding lipedema epidemiology, pathophysiology, clinical presentation, differential diagnosis, and management. Increased awareness and a better understanding of its clinical presentation and pathophysiology are warranted to enable clinicians to diagnose and treat affected patients at an earlier stage.
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Affiliation(s)
- Giacomo Buso
- Angiology Division, Heart and Vessel DepartmentLausanne University HospitalLausanneSwitzerland
| | - Michele Depairon
- Angiology Division, Heart and Vessel DepartmentLausanne University HospitalLausanneSwitzerland
| | - Didier Tomson
- Angiology Division, Heart and Vessel DepartmentLausanne University HospitalLausanneSwitzerland
| | - Wassim Raffoul
- Plastic Surgery Division, Locomotor System DepartmentLausanne University HospitalLausanneSwitzerland
| | - Roberto Vettor
- Department of Medicine, Center for the Study and the Integrated Management of Obesity (EASO COM)Padova University HospitalPadovaItaly
| | - Lucia Mazzolai
- Angiology Division, Heart and Vessel DepartmentLausanne University HospitalLausanneSwitzerland
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13
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Bolletta A, Di Taranto G, Chen SH, Elia R, Amorosi V, Chan JCY, Chen HC. Surgical treatment of Milroy disease. J Surg Oncol 2019; 121:175-181. [DOI: 10.1002/jso.25583] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 05/21/2019] [Accepted: 05/21/2019] [Indexed: 12/21/2022]
Affiliation(s)
- A Bolletta
- Department of Plastic SurgeryChina Medical University Hospital Taichung Taiwan
- Department of Medical, Surgical, and Experimental SciencesPlastic Surgery Unit, University of SassariSassari Italy
| | - G Di Taranto
- Department of Plastic SurgeryChina Medical University Hospital Taichung Taiwan
- Department of Plastic and Reconstructive SurgerySapienza University of Rome, Umberto I University HospitalRome Italy
| | - SH Chen
- Department of Plastic SurgeryChang Gung Memorial HospitalTaipei Taiwan
| | - R Elia
- Department of Plastic SurgeryChina Medical University Hospital Taichung Taiwan
- Division of Plastic and Reconstructive Surgery, Department of Emergency and Organ TransplantationUniversity of BariBari Italy
| | - V Amorosi
- Department of Plastic SurgeryChina Medical University Hospital Taichung Taiwan
- Plastic Surgery Unit, Sant'Andrea Hospital, School of Medicine and PsychologySapienza University of RomeRome Italy
| | - J CY Chan
- Department of Plastic SurgeryChina Medical University Hospital Taichung Taiwan
| | - HC Chen
- Department of Plastic SurgeryChina Medical University Hospital Taichung Taiwan
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AL-Ghadban S, Cromer W, Allen M, Ussery C, Badowski M, Harris D, Herbst KL. Dilated Blood and Lymphatic Microvessels, Angiogenesis, Increased Macrophages, and Adipocyte Hypertrophy in Lipedema Thigh Skin and Fat Tissue. J Obes 2019; 2019:8747461. [PMID: 30949365 PMCID: PMC6425411 DOI: 10.1155/2019/8747461] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 01/28/2019] [Accepted: 02/04/2019] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND AND AIM Lipedema is a common painful SAT disorder characterized by enlargement of fat primarily in the legs of women. Case reports of lipedema tissue samples demonstrate fluid and fibrosis in the interstitial matrix, increased macrophages, and adipocyte hypertrophy. The aims of this project are to investigate blood vasculature, immune cells, and structure of lipedema tissue in a cohort of women. METHODS Forty-nine participants, 19 controls and 30 with lipedema, were divided into groups based on body mass index (BMI): Non-Obese (BMI 20 to <30 kg/m2) and Obese (BMI 30 to <40 kg/m2). Histological sections from thigh skin and fat were stained with H&E. Adipocyte area and blood vessel size and number were quantified using ImageJ software. Markers for macrophages (CD68), mast cells (CD117), T cells (CD3), endothelial cells (CD31), blood (SMA), and lymphatic (D2-40 and Lyve-1) vessels were investigated by IHC and IF. RESULTS Non-Obese Lipedema adipocyte area was larger than Non-Obese Controls (p=0.005) and similar to Obese Lipedema and Obese Controls. Macrophage numbers were significantly increased in Non-Obese (p < 0.005) and Obese (p < 0.05) Lipedema skin and fat compared to Control groups. No differences in T lymphocytes or mast cells were observed when comparing Lipedema to Control in both groups. SMA staining revealed increased dermal vessels in Non-Obese Lipedema patients (p < 0.001) compared to Non-Obese Controls. Lyve-1 and D2-40 staining showed a significant increase in lymphatic vessel area but not in number or perimeter in Obese Lipedema participants (p < 0.05) compared to Controls (Obese and Non-Obese). Areas of angiogenesis were found in the fat in 30% of lipedema participants but not controls. CONCLUSION Hypertrophic adipocytes, increased numbers of macrophages and blood vessels, and dilation of capillaries in thigh tissue of non-obese women with lipedema suggest inflammation, and angiogenesis occurs independent of obesity and demonstrates a role of altered vasculature in the manifestation of the disease.
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Affiliation(s)
- Sara AL-Ghadban
- Department of Medicine and TREAT Program, College of Medicine, University of Arizona, Tucson, Arizona, USA
| | - Walter Cromer
- Department of Medical Physiology, Texas A&M University Health Science Center, Temple, Texas, USA
| | - Marisol Allen
- Department of Medicine and TREAT Program, College of Medicine, University of Arizona, Tucson, Arizona, USA
| | - Christopher Ussery
- Department of Medicine and TREAT Program, College of Medicine, University of Arizona, Tucson, Arizona, USA
| | - Michael Badowski
- Department of Immunobiology and Biorepository, College of Medicine, University of Arizona, Tucson, Arizona, USA
| | - David Harris
- Department of Immunobiology and Biorepository, College of Medicine, University of Arizona, Tucson, Arizona, USA
| | - Karen L. Herbst
- Department of Medicine and TREAT Program, College of Medicine, University of Arizona, Tucson, Arizona, USA
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15
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Ruhl T, Storti G, Pallua N. Proliferation, Metabolic Activity, and Adipogenic Differentiation of Human Preadipocytes Exposed to 2 Surfactants In Vitro. J Pharm Sci 2018; 107:1408-1415. [DOI: 10.1016/j.xphs.2017.12.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 11/24/2017] [Accepted: 12/14/2017] [Indexed: 01/09/2023]
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Abstract
In the Western world, lymphedema most commonly occurs following treatment of cancer. Limb reductions have been reported utilizing various conservative therapies including manual lymph and pressure therapy, as well as by microsurgical reconstruction involving lymphovenous shunts and transplantation of lymph vessels or nodes. Failure of these conservative and surgical treatments to provide complete reduction in patients with long-standing pronounced lymphedema is due to the persistence of excess newly formed subcutaneous adipose tissue in response to slow or absent lymph flow, which is not removed in patients with chronic non-pitting lymphedema. Traditional surgical regimes utilizing bridging procedures, total excision with skin grafting, or reduction plasty seldom achieved acceptable cosmetic and functional results. Liposuction removes the hypertrophied adipose tissue and is a prerequisite to achieve complete reduction, and this reduction is maintained long-term through constant (24 h) use of compression garments postoperatively. This article describes the techniques and evidence basis for the use of liposuction for treatment of lymphedema.
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Affiliation(s)
- Mark V Schaverien
- Department of Plastic Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - D Alex Munnoch
- Department of Plastic and Reconstructive Surgery, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - Håkan Brorson
- Department of Clinical Sciences, Lund University, Plastic and Reconstructive Surgery, Skåne University Hospital, Malmö, Sweden
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17
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Escobedo N, Oliver G. The Lymphatic Vasculature: Its Role in Adipose Metabolism and Obesity. Cell Metab 2017; 26:598-609. [PMID: 28844882 PMCID: PMC5629116 DOI: 10.1016/j.cmet.2017.07.020] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/22/2017] [Accepted: 07/27/2017] [Indexed: 02/07/2023]
Abstract
Obesity is a key risk factor for metabolic and cardiovascular diseases, and although we understand the mechanisms regulating weight and energy balance, the causes of some forms of obesity remain enigmatic. Despite the well-established connections between lymphatics and lipids, and the fact that intestinal lacteals play key roles in dietary fat absorption, the function of the lymphatic vasculature in adipose metabolism has only recently been recognized. It is well established that angiogenesis is tightly associated with the outgrowth of adipose tissue, as expanding adipose tissue requires increased nutrient supply from blood vessels. Results supporting a crosstalk between lymphatic vessels and adipose tissue, and linking lymphatic function with metabolic diseases, obesity, and adipose tissue, also started to accumulate in the last years. Here we review our current knowledge of the mechanisms by which defective lymphatics contribute to obesity and fat accumulation in mouse models, as well as our understanding of the lymphatic-adipose tissue relationship.
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Affiliation(s)
- Noelia Escobedo
- Instituto de Ciencias Biomédicas, Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca, Chile
| | - Guillermo Oliver
- Center for Vascular and Developmental Biology, Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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18
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Affiliation(s)
- Jung Ho Lee
- Department of Plastic and Reconstructive Surgery, The Catholic University of Korea Bucheon St. Mary's Hospital, Seoul, Korea
| | - David W. Chang
- Section of Plastic and Reconstructive Surgery, Department of Surgery, The University of Chicago Medicine and Biological Sciences, Chicago, Illinois
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19
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Borri M, Gordon KD, Hughes JC, Scurr ED, Koh DM, Leach MO, Mortimer PS, Schmidt MA. Magnetic Resonance Imaging-Based Assessment of Breast Cancer-Related Lymphoedema Tissue Composition. Invest Radiol 2017; 52:554-561. [PMID: 28538023 PMCID: PMC5548500 DOI: 10.1097/rli.0000000000000386] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 04/04/2017] [Indexed: 01/29/2023]
Abstract
OBJECTIVES The aim of this study was to propose a magnetic resonance imaging acquisition and analysis protocol that uses image segmentation to measure and depict fluid, fat, and muscle volumes in breast cancer-related lymphoedema (BCRL). This study also aims to compare affected and control (unaffected) arms of patients with diagnosed BCRL, providing an analysis of both the volume and the distribution of the different tissue components. MATERIALS AND METHODS The entire arm was imaged with a fluid-sensitive STIR and a 2-point 3-dimensional T1W gradient-echo-based Dixon sequences, acquired in sagittal orientation and covering the same imaging volume. An automated image postprocessing procedure was developed to simultaneously (1) contour the external volume of the arm and the muscle fascia, allowing separation of the epifacial and subfascial volumes; and to (2) separate the voxels belonging to the muscle, fat, and fluid components. The total, subfascial, epifascial, muscle (subfascial), fluid (epifascial), and fat (epifascial) volumes were measured in 13 patients with unilateral BCRL. Affected versus unaffected volumes were compared using a 2-tailed paired t test; a value of P < 0.05 was considered to be significant. Pearson correlation was used to investigate the linear relationship between fat and fluid excess volumes. The distribution of fluid, fat, and epifascial excess volumes (affected minus unaffected) along the arm was also evaluated using dedicated tissue composition maps. RESULTS Total arm, epifascial, epifascial fluid, and epifascial fat volumes were significantly different (P < 0.0005), with greater volume in the affected arms. The increase in epifascial volume (globally, 94% of the excess volume) constituted the bulk of the lymphoedematous swelling, with fat comprising the main component. The total fat excess volume summed over all patients was 2.1 times that of fluid. Furthermore, fat and fluid excess volumes were linearly correlated (Pearson r = 0.75), with the fat excess volume being greater than the fluid in 11 subjects. Differences in muscle compartment volume between affected and unaffected arms were not statistically significant, and contributed only 6% to the total excess volume. Considering the distribution of the different tissue excess volumes, fluid accumulated prevalently around the elbow, with substantial involvement of the upper arm in only 3 cases. Fat excess volume was generally greater in the upper arm; however, the relative increase in epifascial volume, which considers the total swelling relative to the original size of the arm, was in 9 cases maximal within the forearm. CONCLUSIONS Our measurements indicate that excess of fat within the epifascial layer was the main contributor to the swelling, even when a substantial accumulation of fluid was present. The proposed approach could be used to monitor how the internal components of BCRL evolve after presentation, to stratify patients for treatment, and to objectively assess treatment response. This methodology provides quantitative metrics not currently available during the standard clinical assessment of BCRL and shows potential for implementation in clinical practice.
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Affiliation(s)
- Marco Borri
- From the *Cancer Research UK Cancer Imaging Centre, The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research; †Cardiac and Vascular Sciences, St George's University of London; and ‡Skin Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Kristiana D. Gordon
- From the *Cancer Research UK Cancer Imaging Centre, The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research; †Cardiac and Vascular Sciences, St George's University of London; and ‡Skin Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Julie C. Hughes
- From the *Cancer Research UK Cancer Imaging Centre, The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research; †Cardiac and Vascular Sciences, St George's University of London; and ‡Skin Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Erica D. Scurr
- From the *Cancer Research UK Cancer Imaging Centre, The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research; †Cardiac and Vascular Sciences, St George's University of London; and ‡Skin Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Dow-Mu Koh
- From the *Cancer Research UK Cancer Imaging Centre, The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research; †Cardiac and Vascular Sciences, St George's University of London; and ‡Skin Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Martin O. Leach
- From the *Cancer Research UK Cancer Imaging Centre, The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research; †Cardiac and Vascular Sciences, St George's University of London; and ‡Skin Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Peter S. Mortimer
- From the *Cancer Research UK Cancer Imaging Centre, The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research; †Cardiac and Vascular Sciences, St George's University of London; and ‡Skin Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Maria A. Schmidt
- From the *Cancer Research UK Cancer Imaging Centre, The Royal Marsden NHS Foundation Trust and The Institute of Cancer Research; †Cardiac and Vascular Sciences, St George's University of London; and ‡Skin Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom
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Priglinger E, Wurzer C, Steffenhagen C, Maier J, Hofer V, Peterbauer A, Nuernberger S, Redl H, Wolbank S, Sandhofer M. The adipose tissue-derived stromal vascular fraction cells from lipedema patients: Are they different? Cytotherapy 2017; 19:849-860. [PMID: 28454682 DOI: 10.1016/j.jcyt.2017.03.073] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 03/17/2017] [Accepted: 03/21/2017] [Indexed: 01/18/2023]
Abstract
BACKGROUND AIMS Lipedema is a hormone-related disease of women characterized by enlargement of the extremities caused by subcutaneous deposition of adipose tissue. In healthy patients application of autologous adipose tissue-derived cells has shown great potential in several clinical studies for engrafting of soft tissue reconstruction in recent decades. The majority of these studies have used the stromal vascular fraction (SVF), a heterogeneous cell population containing adipose-derived stromal/stem cells (ASC), among others. Because cell identity and regenerative properties might be affected by the health condition of patients, we characterized the SVF cells of 30 lipedema patients in comparison to 22 healthy patients. METHODS SVF cells were analyzed regarding cell yield, viability, adenosine triphosphate content, colony forming units and proliferative capacity, as well as surface marker profile and differentiation potential in vitro. RESULTS Our results demonstrated a significantly enhanced SVF cell yield isolated from lipedema compared with healthy patients. In contrast, the adipogenic differentiation potential of SVF cells isolated from lipedema patients was significantly reduced compared with healthy patients. Interestingly, expression of the mesenchymal marker CD90 and the endothelial/pericytic marker CD146 was significantly enhanced when isolated from lipedema patients. DISCUSSION The enhanced number of CD90+ and CD146+ cells could explain the increased cell yield because the other tested surface marker were not reduced in lipedema patients. Because the cellular mechanism and composition in lipedema is largely unknown, our findings might contribute to a better understanding of its etiology.
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Affiliation(s)
- Eleni Priglinger
- AUVA Research Center, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Linz, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria.
| | - Christoph Wurzer
- AUVA Research Center, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Linz, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria; Liporegena GmbH, Breitenfurt, Austria
| | - Carolin Steffenhagen
- AUVA Research Center, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Linz, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Julia Maier
- AUVA Research Center, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Linz, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Victoria Hofer
- Faculty of Medicine/Dental Medicine, Danube Private University, Krems-Stein, Austria; Austrian Academy of Cosmetic Surgery and Aesthetic Medicine, Linz, Austria
| | - Anja Peterbauer
- Austrian Cluster for Tissue Regeneration, Vienna, Austria; Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - Sylvia Nuernberger
- Austrian Cluster for Tissue Regeneration, Vienna, Austria; Bernhard Gottlieb University Clinic of Dentistry, Universitätsklinik für Zahn-, Mund- und Kieferheilkunde Ges.m.b.H, Vienna, Austria; Department of Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | - Heinz Redl
- AUVA Research Center, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Linz, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Susanne Wolbank
- AUVA Research Center, Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Linz, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Matthias Sandhofer
- Austrian Academy of Cosmetic Surgery and Aesthetic Medicine, Linz, Austria
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Teo I, Munnoch D. Referral patterns to a surgical lymphoedema service: 10 years of experience. J Plast Reconstr Aesthet Surg 2015; 68:1395-401. [DOI: 10.1016/j.bjps.2015.05.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Revised: 05/02/2015] [Accepted: 05/18/2015] [Indexed: 12/01/2022]
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22
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Carlson JA. Lymphedema and subclinical lymphostasis (microlymphedema) facilitate cutaneous infection, inflammatory dermatoses, and neoplasia: A locus minoris resistentiae. Clin Dermatol 2015; 32:599-615. [PMID: 25160101 DOI: 10.1016/j.clindermatol.2014.04.007] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Whether primary or secondary, lymphedema is caused by failure to drain protein-rich interstitial fluid. Typically affecting a whole limb, it has become apparent that lymphedema can also affect localized regions of the skin, or it can be clinically silent but histologically evident, denoted by dilated lymphangiectases (latent lymphedema). Chronic lymph stasis has numerous consequences, including lipogenesis, fibrosis, inflammation, lymphangiogenesis, and immunosuppression. For example, lymphedema's disruption of immune cell trafficking leads to localized immune suppression, predisposing the area affected to chronic inflammation, infection (cellulitis and verrucosis), and malignancy (angiosarcoma and nonmelanoma skin cancer). The pathogenesis of lymphedema is reviewed and exemplified by describing how a combination of lymph stasis-promoting factors such as trauma, obesity, infection, and inflammatory disorders produces localized elephantiasis; furthermore, the finding of lymphangiectases is found to be common in numerous dermatologic disorders and argued to play a role in their pathogenesis. Lastly, it is discussed how antigen burden, which is controlled by lymphatic clearance, affects the immune response, resulting in immune tolerance, immunopathology, or normal adaptive immunity.
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Affiliation(s)
- J Andrew Carlson
- Divisions of Dermatopathology and Dermatology, Department of Pathology, Albany Medical College, MC-81, Albany, NY 12208.
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23
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Szél E, Kemény L, Groma G, Szolnoky G. Pathophysiological dilemmas of lipedema. Med Hypotheses 2014; 83:599-606. [DOI: 10.1016/j.mehy.2014.08.011] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 08/01/2014] [Accepted: 08/11/2014] [Indexed: 12/31/2022]
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Kadam P, Rand J, Rady P, Tyring S, Stehlik J, Sedivcova M, Kazakov DV, Ray K, Hill J, Agag R, Carlson JA. Adolescent Onset of Localized Papillomatosis, Lymphedema, and Multiple Beta-Papillomavirus Infection: Epidermal Nevus, Segmental Lymphedema Praecox, or Verrucosis? A Case Report and Case Series of Epidermal Nevi. Dermatopathology (Basel) 2014; 1:55-69. [PMID: 27047923 PMCID: PMC4772932 DOI: 10.1159/000367967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Herein, we report the case of a 12-year-old female who noted the recent onset of an oval, circumscribed, 10-cm papillomatous plaque affecting the thigh and vulva that showed histologic signs of lymphedema without evidence of secondary lymphedema. The sequencing of genes associated with a delayed onset of lymphedema or epidermal nevi (EN) - GATA2 and GJC2, and HRAS and KRAS, respectively - showed wild-type alleles. Polymerase chain reaction for human papillomavirus (HPV) DNA demonstrated infections with 15 HPV genotypes. Evidence of productive HPV infection, HPV capsid expression, and cytopathic changes was detected. At the 6-month follow-up, no evidence of recurrence was found after complete excision. The analysis of a consecutive series of 91 EN excision specimens revealed that 76% exhibited histologic evidence of lymphostasis. Notably, multiple acrochordon-like EN, which most closely resembled this case, showed similar signs of localized lymphedema. The late onset and evidence of lymphedema favors the diagnosis of congenital unisegmental lymphedema. However, the clinical findings and epidermal changes point to the diagnosis of EN. Moreover, localized verrucosis also accurately describes this patient's cutaneous findings. Based on the above evidence, we postulate that an abnormal development of lymphatics may play a primary role in the pathogenesis of some types of EN and facilitate productive HPV infection.
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Affiliation(s)
- Pooja Kadam
- Department of Pathology, Albany Medical College, Albany, N.Y., USA
| | - Janne Rand
- Department of Pathology, Albany Medical College, Albany, N.Y., USA
| | - Peter Rady
- Department of Dermatology, University of Texas Health Science Center, Houston, Tex., USA
- Department of Microbiology/Medical Genetics, University of Texas Health Science Center, Houston, Tex., USA
- Department of Internal Medicine, University of Texas Health Science Center, Houston, Tex., USA
| | - Stephen Tyring
- Department of Dermatology, University of Texas Health Science Center, Houston, Tex., USA
- Department of Microbiology/Medical Genetics, University of Texas Health Science Center, Houston, Tex., USA
- Department of Internal Medicine, University of Texas Health Science Center, Houston, Tex., USA
| | - Jan Stehlik
- Department of Pathology, Medical Faculty in Pilsen, Charles University, Pilsen, Czech Republic
| | - Monica Sedivcova
- Department of Pathology, Medical Faculty in Pilsen, Charles University, Pilsen, Czech Republic
| | - Dmitry V. Kazakov
- Department of Pathology, Medical Faculty in Pilsen, Charles University, Pilsen, Czech Republic
| | - Kathy Ray
- Department of Capital District Dermatology, Glenmont, N.Y., USA
| | - Jerome Hill
- Department of Capital District Dermatology, Glenmont, N.Y., USA
| | - Richard Agag
- Department of Plastic Surgery, Albany Medical College, Albany, N.Y., USA
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Dylke E, Ward L, Meerkin J, Nery L, Kilbreath S. Tissue Composition Changes and Secondary Lymphedema. Lymphat Res Biol 2013; 11:211-8. [DOI: 10.1089/lrb.2013.0018] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- E.S. Dylke
- Faculty of Health Sciences, University of Sydney, Sydney, Australia
| | - L.C. Ward
- Faculty of Health Sciences, University of Sydney, Sydney, Australia
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia
| | | | - L. Nery
- Department of Endocrinology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - S.L. Kilbreath
- Faculty of Health Sciences, University of Sydney, Sydney, Australia
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Shimizu Y, Shibata R, Ishii M, Ohashi K, Kambara T, Uemura Y, Yuasa D, Kataoka Y, Kihara S, Murohara T, Ouchi N. Adiponectin-mediated modulation of lymphatic vessel formation and lymphedema. J Am Heart Assoc 2013; 2:e000438. [PMID: 24052499 PMCID: PMC3835259 DOI: 10.1161/jaha.113.000438] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND Obesity is linked with an increased risk of lymphedema, which is a serious clinical problem. Adiponectin is a circulating adipokine that is down-regulated in obese states. We investigated the effects of adiponectin on lymphatic vessel formation in a model of lymphedema and dissected its mechanisms. METHODS AND RESULTS A mouse model of lymphedema was created via ablation of tail surface lymphatic network. Adiponectin-knockout mice showed the greater diameter of the injured tail compared with wild-type mice, which was associated with lower numbers of lymphatic endothelial cells (LECs). Systemic delivery of adiponectin reduced the thickness of the injured tail and enhanced LEC formation in wild-type and adiponectin-knockout mice. Adiponectin administration also improved the edema of injured tails in obese KKAy mice. Treatment with adiponectin protein stimulated the differentiation of human LECs into tubelike structures and increased LEC viability. Adiponectin treatment promoted the phosphorylation of AMP-activated protein kinase (AMPK), Akt, and endothelial nitric oxide synthase n LECs. Blockade of AMPK or Akt activity abolished adiponectin-stimulated increase in LEC differentiation and viability and endothelial nitric oxide synthase phosphorylation. Inhibition of AMPK activation also suppressed adiponectin-induced Akt phosphorylation in LECs. In contrast, inactivation of Akt signaling had no effects on adiponectin-mediated AMPK phosphorylation in LECs. Furthermore, adiponectin administration did not affect the thickening of the damaged tail in endothelial nitric oxide synthase-knockout mice. CONCLUSIONS Adiponectin can promote lymphatic vessel formation via activation of AMPK/Akt/endothelial nitric oxide synthase signaling within LECs, thereby leading to amelioration of lymphedema.
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Affiliation(s)
- Yuuki Shimizu
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Neurokinin-1 receptor, a new modulator of lymphangiogenesis in obese-asthma phenotype. Life Sci 2013; 93:169-77. [PMID: 23792204 DOI: 10.1016/j.lfs.2013.06.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 06/05/2013] [Accepted: 06/10/2013] [Indexed: 12/28/2022]
Abstract
AIMS Obesity and asthma are widely prevalent and associated disorders. Recent studies of our group revealed that Substance P (SP) is involved in pathophysiology of obese-asthma phenotype in mice through its selective NK1 receptor (NK1-R). Lymphangiogenesis is impaired in asthma and obesity, and SP activates contractile and inflammatory pathways in lymphatics. Our aim was to study whether NK1-R expression was involved in lymphangiogenesis on visceral (VAT) and subcutaneous (SAT) adipose tissues and in the lungs, in obese-allergen sensitized mice. MAIN METHODS Diet-induced obese and ovalbumin (OVA)-sensitized Balb/c mice were treated with a selective NK1-R antagonist (CJ 12,255, Pfizer Inc., USA) or placebo. Lymphatic structures (LYVE-1+) and NK1-R expression were analyzed by immunohistochemistry. A semi-quantitative score methodology was used for NK1-R expression. KEY FINDINGS Obesity and allergen-sensitization together increased the number of LYVE-1+ lymphatics in VAT and decreased it in SAT and lungs. NK1-R was mainly expressed on adipocyte membranes of VAT, blood vessel areas of SAT, and in lung epithelium. Obesity and allergen-sensitization combined increased the expression of NK1-R in VAT, SAT and lungs. NK1-R antagonist treatment reversed the effects observed in lymphangiogenesis in those tissues. SIGNIFICANCE The obese-asthma phenotype in mice is accompanied by increased expression of NK1-R on adipose tissues and lung epithelium, reflecting that SP released during inflammation may act directly on these tissues. Blocking NK1-R affects lymphangiogenesis, implying a role of SP, with opposite physiological consequences in VAT, and in SAT and lungs. Our results provide a clue for a novel SP role in the obese-asthma phenotype.
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Brorson H, Höijer P. Standardised measurements used to order compression garments can be used to calculate arm volumes to evaluate lymphoedema treatment. J Plast Surg Hand Surg 2012; 46:410-5. [DOI: 10.3109/2000656x.2012.714785] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Rausky J, Robert N, Binder JP, Revol M. [In search of the ideal surgical treatment for lymphedema. Report of 2nd European Conference on supermicrosurgery (Barcelona - March 2012)]. ANN CHIR PLAST ESTH 2012; 57:594-9. [PMID: 23063020 DOI: 10.1016/j.anplas.2012.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Accepted: 08/11/2012] [Indexed: 10/27/2022]
Abstract
Since more than 50 years, many surgeons all around the world try to find the perfect surgical technique to treat limb lymphedemas. Decongestive physiotherapy associated with the use of a compressive garment has been the primary choice for lymphedema treatment. Many different surgical techniques have been developed, however, to date, there is no consensus on surgical procedure. Most surgical experts of lymphedema met in the second European Conference on supermicrosurgery, organized on March 1st and 2nd 2012, in San Pau Hospital, Barcelona. Together they tried to clarify these different options and ideally a strategy for using these techniques.
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Affiliation(s)
- J Rausky
- Service de chirurgie plastique reconstructrice et esthétique, hôpital Saint-Louis, AP-HP, université Paris Diderot, Paris, France.
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Brorson H. From lymph to fat: liposuction as a treatment for complete reduction of lymphedema. INT J LOW EXTR WOUND 2012; 11:10-9. [PMID: 22363050 DOI: 10.1177/1534734612438550] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
There is some controversy regarding liposuction for late-stage lymphedemas. Although it is clear that conservative therapies such as complex decongestive therapy and controlled compression therapy should be tried in the first instance, options for the treatment of late-stage lymphedema that is not responding to treatment is not so clear. Liposuction has been used for many years to treat lipodystrophy. Some results have been far from optimal; however, improvements in technique, patient preparation, and patient follow-up have led to a greater and a wider acceptance of liposuction as a treatment for lymphedema. This article outlines the benefits of using liposuction and presents the evidence to support its use.
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Affiliation(s)
- Håkan Brorson
- Department of Clinical Sciences, Lund University, Plastic and Reconstructive Surgery, Skåne University Hospital, Malmö, Sweden.
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Abstract
Rare adipose disorders (RADs) including multiple symmetric lipomatosis (MSL), lipedema and Dercum's disease (DD) may be misdiagnosed as obesity. Lifestyle changes, such as reduced caloric intake and increased physical activity are standard care for obesity. Although lifestyle changes and bariatric surgery work effectively for the obesity component of RADs, these treatments do not routinely reduce the abnormal subcutaneous adipose tissue (SAT) of RADs. RAD SAT likely results from the growth of a brown stem cell population with secondary lymphatic dysfunction in MSL, or by primary vascular and lymphatic dysfunction in lipedema and DD. People with RADs do not lose SAT from caloric limitation and increased energy expenditure alone. In order to improve recognition of RADs apart from obesity, the diagnostic criteria, histology and pathophysiology of RADs are presented and contrasted to familial partial lipodystrophies, acquired partial lipodystrophies and obesity with which they may be confused. Treatment recommendations focus on evidence-based data and include lymphatic decongestive therapy, medications and supplements that support loss of RAD SAT. Associated RAD conditions including depression, anxiety and pain will improve as healthcare providers learn to identify and adopt alternative treatment regimens for the abnormal SAT component of RADs. Effective dietary and exercise regimens are needed in RAD populations to improve quality of life and construct advanced treatment regimens for future generations.
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Abstract
Liposuction for late-stage lymphoedema remains a controversial technique. While it is clear that conservative therapies such as combined decongestive therapy (CDT) and controlled compression therapy (CCT) should be tried in the first instance, options for the treatment of late-stage lymphoedema that is not responding to treatment is not so clear. Liposuction has been used for many years to treat lipodystrophy. Some results have been far from optimal; however, improvements in technique, patient preparation and patient follow-up have led to a greater and a wider acceptance of liposuction as a treatment for lymphoedema. This paper outlines the benefits of using liposuction and presents the evidence to support its use.
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Affiliation(s)
- H Brorson
- Department of Plastic and Reconstructive Surgery, Lund University, Skåne University Hospital, SE-205 02 Malmö, Sweden
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Christiaens V, Lijnen HR. Angiogenesis and development of adipose tissue. Mol Cell Endocrinol 2010; 318:2-9. [PMID: 19686803 DOI: 10.1016/j.mce.2009.08.006] [Citation(s) in RCA: 153] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Revised: 07/27/2009] [Accepted: 08/07/2009] [Indexed: 01/03/2023]
Abstract
Obesity is a common disorder and related diseases, such as diabetes, atherosclerosis, hypertension, cardiovascular disease and cancer, are a major cause of mortality and morbidity in Western-type societies. Development of obesity is associated with substantial modulation of adipose tissue structure. The plasticity of the adipose tissue is reflected by its remarkable ability to expand or to reduce in size throughout adult lifespan. The expansion of adipose tissue is linked to the development of its vasculature. Indeed, adipogenesis is tightly associated with angiogenesis, as shown by the findings that adipose tissue explants trigger blood vessel formation, whereas in turn adipose tissue endothelial cells promote preadipocyte differentiation. Different components have been identified that play a role in adipose tissue associated angiogenesis. Modulation of angiogenesis may have the potential to impair adipose tissue development and thus may provide a novel therapeutic approach for prevention and treatment of obesity.
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Affiliation(s)
- V Christiaens
- Center for Molecular and Vascular Biology, KU Leuven, Leuven, Belgium.
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Lijnen H, Frederix L, Van Hoef B, Dewerchin M. Deficiency of vascular endothelial growth factor-D does not affect murine adipose tissue development. Biochem Biophys Res Commun 2009; 378:255-8. [DOI: 10.1016/j.bbrc.2008.11.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2008] [Accepted: 11/10/2008] [Indexed: 12/12/2022]
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