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Grigoriadis D, Sackey E, Riches K, van Zanten M, Brice G, England R, Mills M, Dobbins SE, Lee LL, Jeffery S, Dong L, Savage DB, Mortimer PS, Keeley V, Pittman A, Gordon K, Ostergaard P. Investigation of clinical characteristics and genome associations in the 'UK Lipoedema' cohort. PLoS One 2022; 17:e0274867. [PMID: 36227936 PMCID: PMC9560129 DOI: 10.1371/journal.pone.0274867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 09/06/2022] [Indexed: 11/08/2022] Open
Abstract
Lipoedema is a chronic adipose tissue disorder mainly affecting women, causing excess subcutaneous fat deposition on the lower limbs with pain and tenderness. There is often a family history of lipoedema, suggesting a genetic origin, but the contribution of genetics is currently unclear. A tightly phenotyped cohort of 200 lipoedema patients was recruited from two UK specialist clinics. Objective clinical characteristics and measures of quality of life data were obtained. In an attempt to understand the genetic architecture of the disease better, genome-wide single nucleotide polymorphism (SNP) genotype data were obtained, and a genome wide association study (GWAS) was performed on 130 of the recruits. The analysis revealed genetic loci suggestively associated with the lipoedema phenotype, with further support provided by an independent cohort taken from the 100,000 Genomes Project. The top SNP rs1409440 (ORmeta ≈ 2.01, Pmeta ≈ 4 x 10-6) is located upstream of LHFPL6, which is thought to be involved with lipoma formation. Exactly how this relates to lipoedema is not yet understood. This first GWAS of a UK lipoedema cohort has identified genetic regions of suggestive association with the disease. Further replication of these findings in different populations is warranted.
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Affiliation(s)
- Dionysios Grigoriadis
- Molecular and Clinical Sciences Institute, St George’s University of London, London, United Kingdom
| | - Ege Sackey
- Molecular and Clinical Sciences Institute, St George’s University of London, London, United Kingdom
| | - Katie Riches
- University Hospitals of Derby and Burton NHS Foundation Trust, Derby, United Kingdom
| | - Malou van Zanten
- Molecular and Clinical Sciences Institute, St George’s University of London, London, United Kingdom
| | - Glen Brice
- South West Thames Regional Genetics Unit, St George’s University of London, London, United Kingdom
| | - Ruth England
- University Hospitals of Derby and Burton NHS Foundation Trust, Derby, United Kingdom
| | - Mike Mills
- Molecular and Clinical Sciences Institute, St George’s University of London, London, United Kingdom
| | - Sara E. Dobbins
- Molecular and Clinical Sciences Institute, St George’s University of London, London, United Kingdom
| | - Li Ling Lee
- Molecular and Clinical Sciences Institute, St George’s University of London, London, United Kingdom
| | | | | | - Steve Jeffery
- Molecular and Clinical Sciences Institute, St George’s University of London, London, United Kingdom
| | - Liang Dong
- Metabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, United Kingdom
| | - David B. Savage
- Metabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, University of Cambridge, Cambridge, United Kingdom
| | - Peter S. Mortimer
- Molecular and Clinical Sciences Institute, St George’s University of London, London, United Kingdom
- Dermatology & Lymphovascular Medicine, St George’s Universities NHS Foundation trust, London, United Kingdom
| | - Vaughan Keeley
- University Hospitals of Derby and Burton NHS Foundation Trust, Derby, United Kingdom
- University of Nottingham Medical School, Nottingham, United Kingdom
| | - Alan Pittman
- Molecular and Clinical Sciences Institute, St George’s University of London, London, United Kingdom
| | - Kristiana Gordon
- Molecular and Clinical Sciences Institute, St George’s University of London, London, United Kingdom
- Dermatology & Lymphovascular Medicine, St George’s Universities NHS Foundation trust, London, United Kingdom
| | - Pia Ostergaard
- Molecular and Clinical Sciences Institute, St George’s University of London, London, United Kingdom
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