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Murine Model of Epicutaneously-Induced Immunomodulation
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Epigenetics of allergy.

Giovanna Tezza1, Federica Mazzei, Attilio Boner

  • 1Department of Life Sciences and Reproduction, Section of Pediatrics, University of Verona, Policlinico G.B. Rossi, Piazzale L A Scuro 10, Verona, Italy.

Early Human Development
|July 2, 2013
PubMed
Summary
This summary is machine-generated.

Epigenetics, influenced by environmental factors like tobacco smoke, plays a role in allergic diseases such as asthma. Early life exposures can lead to lasting genetic changes, impacting disease development.

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Area of Science:

  • Environmental epigenetics
  • Immunology
  • Allergy research

Background:

  • Epigenetics is increasingly recognized as a key mechanism in the development of various disorders, notably allergic diseases.
  • Environmental factors, including maternal tobacco smoke and mechanical ventilation, can modify gene transcription, affecting lung structure and function.
  • Asthma, atopic dermatitis, and food allergy are all conditions influenced by epigenetic modifications.

Purpose of the Study:

  • To explore the role of epigenetic mechanisms in the development of allergic diseases.
  • To investigate how environmental exposures during early life influence long-term genetic states and allergy development.
  • To examine the link between environmental factors, epigenetic alterations, and T cell differentiation.

Main Methods:

  • Review of animal models demonstrating environmental factor impact on gene transcription and lung development.
  • Analysis of studies linking early childhood environmental exposures to persistent epigenetic changes.
  • Examination of research implicating epigenetic mechanisms in T cell differentiation and allergic disease pathways.

Main Results:

  • Environmental factors like pollution, environmental tobacco smoke (ETS), and diet are linked to atopy via epigenetic mechanisms.
  • Epigenetic mechanisms are significantly implicated in T cell differentiation processes.
  • Early life environmental exposures can induce long-lasting epigenetic alterations, potentially leading to allergic diseases like asthma, atopic dermatitis, and food allergy, especially if the filaggrin gene is involved.

Conclusions:

  • Significant progress has been made in understanding the link between environmental exposures and allergic diseases through epigenetics.
  • Epigenetic mechanisms are crucial in T cell differentiation, a key process in immune responses.
  • Further research is essential to elucidate the clinical implications of identified epigenetic alterations in allergic diseases.