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Related Concept Videos

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Related Experiment Video

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Development and Functional Characterization of Murine Tolerogenic Dendritic Cells
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Folate deficiency affects dendritic cell function and subsequent T helper cell differentiation.

Chi-Heng Wu1, Tzu-Chien Huang1, Bi-Fong Lin1

  • 1Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan, Republic of China.

The Journal of Nutritional Biochemistry
|January 2, 2017
PubMed
Summary

Folate deficiency impairs dendritic cell (DC) maturation and function, leading to aberrant T helper (Th) cell differentiation and immune responses. This highlights folate's critical role in maintaining immune homeostasis.

Keywords:
Dendritic cellFolate deficiencyIL-12p70Regulatory T cellT helper cellT-cell priming

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Area of Science:

  • Immunology
  • Nutritional Science

Background:

  • Immune and inflammation-related chronic diseases are increasing.
  • Folate status may influence immune regulation.

Purpose of the Study:

  • To investigate the effects of folate deficiency on dendritic cell (DC) maturation and function.
  • To examine the impact of folate deficiency on T helper (Th) cell differentiation.

Main Methods:

  • Bone marrow-derived DCs (BMDCs) were cultured in folate-containing or folate-deficient media.
  • In vivo studies involved mice fed a folate-deficient diet for 13 weeks.
  • Splenic DCs (spDC) from folate-deficient mice were co-cultured with Th cells.

Main Results:

  • Folate-deficient BMDCs exhibited an immature phenotype with reduced MHC II and co-stimulatory molecules.
  • Folate deficiency led to decreased IL-12p70 and pro-inflammatory cytokine production by DCs.
  • Folate deficiency impaired Th cell activity, reducing cytokine production (IL-2, IFNγ, IL-13, IL-10) and altering T cell populations in vivo.

Conclusions:

  • Folate deficiency impairs DC function, leading to aberrant Th cell differentiation and responses.
  • Folate plays a crucial role in maintaining Th cell homeostasis and immune function.