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Related Concept Videos

T Cell Types and Functions01:24

T Cell Types and Functions

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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
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Development and Functional Characterization of Murine Tolerogenic Dendritic Cells
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IL-10-Functionalized Hydrogels Support Immunosuppressive Dendritic Cell Phenotype and Function.

Nicholas M Beskid1,2, Elizabeth M Kolawole3, María M Coronel1,2

  • 1George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 801 Ferst Drive NW, Atlanta, Georgia 30318, United States.

ACS Biomaterials Science & Engineering
|September 22, 2022
PubMed
Summary

This study developed interleukin-10 (IL-10) functionalized hydrogels to enhance immunosuppressive cell therapies for autoimmune diseases. The novel biomaterial delivery system improved dendritic cell function and regulatory T cell induction.

Keywords:
dendritic cellshydrogelimmunosuppressionmultiple sclerosistolerance

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Area of Science:

  • Biomaterials science
  • Immunology
  • Cell therapy

Background:

  • Hydrogels offer localized delivery for cellular therapies.
  • Functionalized biomaterials supporting immunosuppressive cell therapies for tolerogenic applications are emerging.
  • The study focuses on developing advanced biomaterials for autoimmune disease treatment.

Purpose of the Study:

  • To develop and optimize a functionalized hydrogel for enhanced immunosuppressive cell therapy.
  • To investigate the efficacy of interleukin-10 (IL-10) functionalized poly(ethylene-glycol)-maleimide (PEG-4MAL) hydrogels for autoimmune disease treatment.
  • To support dendritic cell (DC) viability and function within the hydrogel system.

Main Methods:

  • Development of 4-arm poly(ethylene-glycol)-maleimide (PEG-4MAL) hydrogels.
  • Functionalization of hydrogels with interleukin-10 (IL-10).
  • Optimization of hydrogel properties to support dendritic cell (DC) viability and phenotype.
  • In vitro coculture experiments to assess DC-induced regulatory T cell (Treg) generation.

Main Results:

  • PEG-4MAL hydrogels were optimized for DC viability and immature phenotype.
  • IL-10-functionalized hydrogels demonstrated controlled IL-10 release and prolonged DC support.
  • The hydrogel system protected DCs from inflammatory damage.
  • DCs encapsulated in PEG-IL10 hydrogels successfully induced CD25+FoxP3+ regulatory T cells (Tregs) in vitro.

Conclusions:

  • Biomaterial-mediated delivery of IL-10-functionalized hydrogels is a promising strategy to improve immunosuppressive cell therapies.
  • This approach serves as a proof-of-concept for enhancing the efficacy of cell therapies in autoimmune diseases.
  • The developed hydrogel system has broad potential for various tolerogenic applications.