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Monozygotic twins d...
Monozygotic twins discordant for common variable immunodeficiency reveal impaired DNA demethylation during naïve-to-memory B-cell transition
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Rodriguez-Cortez, VC (författare)
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del Pino-Molina, L (författare)
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Rodriguez-Ubreva, J (författare)
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Ciudad, L (författare)
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- Gomez-Cabrero, D (författare)
- Karolinska Institutet
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Company, C (författare)
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Urquiza, JM (författare)
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- Tegner, J (författare)
- Karolinska Institutet
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Rodriguez-Gallego, C (författare)
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Lopez-Granados, E (författare)
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Ballestar, E (författare)
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(creator_code:org_t)
- 2015-06-17
- 2015
- Engelska.
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Ingår i: Nature communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 6, s. 7335-
- Relaterad länk:
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https://www.nature.c...
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http://kipublication...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- Common variable immunodeficiency (CVID), the most frequent primary immunodeficiency characterized by loss of B-cell function, depends partly on genetic defects, and epigenetic changes are thought to contribute to its aetiology. Here we perform a high-throughput DNA methylation analysis of this disorder using a pair of CVID-discordant MZ twins and show predominant gain of DNA methylation in CVID B cells with respect to those from the healthy sibling in critical B lymphocyte genes, such as PIK3CD, BCL2L1, RPS6KB2, TCF3 and KCNN4. Individual analysis confirms hypermethylation of these genes. Analysis in naive, unswitched and switched memory B cells in a CVID patient cohort shows impaired ability to demethylate and upregulate these genes in transitioning from naive to memory cells in CVID. Our results not only indicate a role for epigenetic alterations in CVID but also identify relevant DNA methylation changes in B cells that could explain the clinical manifestations of CVID individuals.
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- art (ämneskategori)
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