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Related Experiment Video

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Regulators of Tfh Cell Differentiation.

Gajendra M Jogdand1, Suchitra Mohanty2, Satish Devadas1

  • 1T Cell and Immune Response, Infectious Disease Biology, Institute of Life Sciences , Bhubaneswar , India.

Frontiers in Immunology
|December 10, 2016
PubMed
Summary

Follicular helper T (Tfh) cells are crucial for adaptive immunity. This review details the molecular regulators, including cytokines and transcription factors, that control Tfh cell differentiation for therapeutic applications.

Keywords:
B cell lymphoma 6CXCR5ICOST follicular helper cellprogramed death 1

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Area of Science:

  • Immunology
  • Cell Biology

Background:

  • Follicular helper T (Tfh) cells are essential for B cell activation, antibody production, and germinal center formation.
  • Tfh cells play critical roles in host defense against infections but are also implicated in autoimmune diseases.

Approach:

  • This review synthesizes current knowledge on the molecular signaling pathways governing Tfh cell differentiation.
  • It examines positive and negative regulators, including cytokines, surface receptors, transcription factors, and microRNAs.

Key Points:

  • Tfh generation involves sequential steps regulated by specific signaling molecules like IL-21, CXCR5, and BCL-6.
  • Negative regulation is mediated by factors such as IL-2, PD-1, and miR-146a.
  • Other regulators like miR-17-92 and FOXO1 exhibit dual roles depending on context.

Conclusions:

  • Understanding the intricate network of Tfh regulators is vital for developing targeted immunotherapies and effective vaccines.
  • Further research is needed to elucidate the mechanisms of effector T cell conversion into Tfh cells.