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Identification of D...
Identification of DNA methylation patterns predisposing for an efficient response to BCG vaccination in healthy BCG-naive subjects
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- Das, Jyotirmoy (författare)
- Linköpings universitet,Avdelningen för mikrobiologi, infektion och inflammation,Medicinska fakulteten
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- Verma, Deepti, 1969- (författare)
- Linköpings universitet,Avdelningen för cellbiologi,Medicinska fakulteten
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- Gustafsson, Mika, 1977- (författare)
- Linköpings universitet,Bioinformatik,Tekniska fakulteten
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- Lerm, Maria, 1973- (författare)
- Linköpings universitet,Avdelningen för mikrobiologi, infektion och inflammation,Medicinska fakulteten
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(creator_code:org_t)
- 2019-04-22
- 2019
- Engelska.
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Ingår i: Epigenetics. - : TAYLOR & FRANCIS INC. - 1559-2294 .- 1559-2308. ; 14:6, s. 589-601
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://www.tandfonl...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The protection against tuberculosis induced by the Bacille Calmette Guerin (BCG) vaccine is unpredictable. In our previous study, altered DNA methylation pattern in peripheral blood mononuclear cells (PBMCs) in response to BCG was observed in a subgroup of individuals, whose macrophages killed mycobacteria effectively (responders). These macrophages also showed production of Interleukin-1 beta (IL-1 beta) in response to mycobacterial stimuli before vaccination. Here, we hypothesized that the propensity to respond to the BCG vaccine is reflected in the DNA methylome. We mapped the differentially methylated genes (DMGs) in PBMCs isolated from responders/non-responders at the time point before vaccination aiming to identify possible predictors of BCG responsiveness. We identified 43 DMGs and subsequent bioinformatic analyses showed that these were enriched for actin-modulating pathways, predicting differences in phagocytosis. This could be validated by experiments showing that phagocytosis of mycobacteria, which is an event preceding mycobacteria-induced IL-1 beta production, was strongly correlated with the DMG pattern.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Medicinsk genetik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Medical Genetics (hsv//eng)
Nyckelord
- DNA methylation; BCG-vaccination; phagocytosis; actin regulation; Mycobacterium tuberculosis; Tuberculosis
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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