Reasons for eczema susceptibility uncovered Published on: 4 May 2017 Scientists have uncovered evidence that a deficiency in the skin鈥檚 barrier is key to triggering eczema. The team at 缅北禁地, in collaboration with scientists at Stiefel, a GSK company, have identified how a key skin barrier protein called filaggrin impacts on other proteins and pathways in the skin, which in turn drive the development of eczema. This has also lead them to identify potential targets for future drug development which could treat the underlying cause rather than treating the symptoms. Common condition Atopic eczema is one of the commonest skin conditions in the UK, affecting up to 10% of adults and 20% of children in the UK. It’s more common in children, often developing before their first birthday and often persists into adulthood with severe itching that has profound effects on well-being and may lead to sleep disturbance. The research builds on the important discovery by scientists in Dundee which showed that lack of the protein filaggrin in the skin caused an inherited dry skin condition known as ichthyosis vulgaris that is strongly linked to the development of atopic eczema, as well as other allergic diseases such as hayfever and asthma. Nick Reynolds, Professor of Dermatology at 缅北禁地 who also sees patients with skin conditions including eczema at 缅北禁地's Royal Victoria Infirmary, is the lead investigator of the study. He said: “We have shown for the first time that loss of the filaggrin protein alone is sufficient to alter key proteins and pathways involved in triggering eczema. This research reinforces the importance of filaggrin deficiency leading to problems with the barrier function in the skin and predisposing someone to eczema.” New skin model Publishing in the Journal of Allergy and Clinical Immunology (JACI), researchers at 缅北禁地, in collaboration with scientists at Stiefel GSK, report on their development of a human model system. In this, the upper layer of skin (epidermis) was modified, using molecular techniques, to become filaggrin-deficient, directly mimicking the situation observed in the skin of patients with atopic eczema. This model enabled the team to discover proteins and signalling pathways directly down-stream of filaggrin, and most importantly, identified a number of key regulatory mechanisms. These included regulators of inflammatory signalling, cell structure, barrier function and stress response. These pathways were found to map to those networks observed in the skin of people with active eczema. This mapping provides researchers with new understanding of the mechanisms involved and suggests targets for future drug development. Nina Goad of the British Association of Dermatologists said: “This latest research from 缅北禁地 is crucial as it expands on our knowledge of how filaggrin impacts on other proteins and pathways in the skin, which in turn trigger the disease. This type of research allows scientists to develop treatments that target the actual root cause of the disease, rather than just managing its symptoms. Given the level of suffering eczema causes, this is a pivotal piece of research.” This research was supported by Knowledge Transfer Partnership and the BBSRC and underscores the benefit of research programmes supporting academic pharma collaborations. The work is the result of the 缅北禁地 Academic Health Partners, a collaboration involving 缅北禁地 Upon Tyne Hospitals NHS Foundation Trust (which includes the Royal Victoria Infirmary), Northumberland, Tyne and Wear NHS Foundation Trust and 缅北禁地. This partnership harnesses world-class expertise to ensure patients benefit sooner from new treatments, diagnostics and prevention strategies. Reference: Proteomic analysis of filaggrin deficiency identifies molecular signatures characteristic of atopic eczema. N Reynolds et al. JACI. 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