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Título: | Histone modifications associated with biological drug response in moderate-to-severe psoriasis |
Autor: | Ovejero-Benito, M. C. CSIC ORCID; Reolid, Alejandra; Sánchez-Jiménez, Patricia; Saiz-Rodríguez, Miriam; Muñoz-Aceituno, Ester; Llamas-Velasco, Mar; Martín-Vilchez, Samuel; Cabaleiro, Teresa; Román, Manuel; Ochoa, Dolores; Daudén, Esteban; Abad-Santos, Francisco | Fecha de publicación: | 2018 | Editor: | Wiley-VCH | Citación: | Experimental Dermatology 27(12): 1361-1371 (2018) | Resumen: | [Introduction] Epigenetic factors play an important role in psoriasis onset and development. Biological drugs are used to treat moderate-to-severe psoriasis patients resistant to conventional systemic drugs. Although they are safe and effective, some patients do not respond to them. Therefore, it is necessary to find biomarkers that could predict response to these therapies. [Objective] To find epigenetic biomarkers that could predict response to biological drugs (ustekinumab, secukinumab, adalimumab, ixekizumab). [Materials and methods] Peripheral blood mononuclear cells (PBMCs) were isolated from 39 psoriasis patients treated with biological therapies before and after drug administration and from 42 healthy subjects. Afterwards, histones were extracted from PBMCs. Four histone modifications (H3 and H4 acetylation, H3K4 and H3K27 methylation) were determined by ELISA. Data were analysed by IBM-SPSS v.23. [Results and conclusions] Psoriasis patients presented reduced levels of acetylated H3 and H4 and increased levels of methylated H3K4 compared to controls. Nonsignificant changes were observed after treatment administration in any of the histone modifications analysed. Nevertheless, significant changes in methylated H3K27 were found between responders and non-responders to biological drugs at 3 months. As 28% of these patients also presented psoriatic arthritis (PsA), the former analysis was repeated in the subsets of patients with or without PsA. In patients without PsA, significant changes in methylated H3K4 were found between responders and nonresponders to biological drugs at 3 and 6 months. Although further studies should confirm these results, these findings suggest that H3K27 and H3K4 methylation may contribute to patients’ response to biological drugs in psoriasis. |
Versión del editor: | https://doi.org/10.1111/exd.13790 | URI: | http://hdl.handle.net/10261/192811 | DOI: | 10.1111/exd.13790 | ISSN: | 0906-6705 | E-ISSN: | 1600-0625 |
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