» Articles » PMID: 20101618

Uptake of Apoptotic DC Converts Immature DC into Tolerogenic DC That Induce Differentiation of Foxp3+ Treg

Overview
Journal Eur J Immunol
Date 2010 Jan 27
PMID 20101618
Citations 79
Authors
Affiliations
Soon will be listed here.
Abstract

DC apoptosis has been observed in patients with cancer and sepsis, and defects in DC apoptosis have been implicated in the development of autoimmune diseases. However, the mechanisms of how DC apoptosis affects immune responses, are unclear. In this study, we showed that immature viable DC have the ability to uptake apoptotic DC as well as necrotic DC without it being recognized as an inflammatory event by immature viable DC. However, the specific uptake of apoptotic DC converted immature viable DC into tolerogenic DC, which were resistant to LPS-induced maturation. These tolerogenic DC secreted increased levels of TGF-beta1, which induced differentiation of naïve T cells into Foxp3(+) Treg. Furthermore, induction of Treg differentiation only occurred upon uptake of apoptotic DC and not apoptotic splenocytes by viable DC, indicating that it is specifically the uptake of apoptotic DC that gives viable immature DC the potential to induce Foxp3(+) Treg. Taken together, these findings identify uptake of apoptotic DC by viable immature DC as an immunologically tolerogenic event.

Citing Articles

Striking a balance: new perspectives on homeostatic dendritic cell maturation.

Bosteels V, Janssens S Nat Rev Immunol. 2024; 25(2):125-140.

PMID: 39289483 DOI: 10.1038/s41577-024-01079-5.


Nanoparticles loaded with IL-2 and TGF-β promote transplantation tolerance to alloantigen.

Horwitz D, Wang J, Kim D, Kang C, Brion K, Bickerton S Front Immunol. 2024; 15:1429335.

PMID: 39131162 PMC: 11310063. DOI: 10.3389/fimmu.2024.1429335.


MerTK Induces Dysfunctional Dendritic Cells by Metabolic Reprogramming.

Zewdie E, Edwards G, Hunter D, Earp H, Holtzhausen A Cancer Immunol Res. 2024; 12(9):1268-1285.

PMID: 38976507 PMC: 11371516. DOI: 10.1158/2326-6066.CIR-23-0666.


Tumor Microenvironment Modulation by Cancer-Derived Extracellular Vesicles.

Ten A, Kumeiko V, Farniev V, Gao H, Shevtsov M Cells. 2024; 13(8.

PMID: 38667297 PMC: 11049026. DOI: 10.3390/cells13080682.


Negative Vaccination Strategies for Promotion of Transplant Tolerance.

Tunbridge M, Luo X, Thomson A Transplantation. 2024; 108(8):1715-1729.

PMID: 38361234 PMC: 11265982. DOI: 10.1097/TP.0000000000004911.


References
1.
Williams C, Harry R, McLeod J . Apoptotic cells induce dendritic cell-mediated suppression via interferon-gamma-induced IDO. Immunology. 2007; 124(1):89-101. PMC: 2434374. DOI: 10.1111/j.1365-2567.2007.02743.x. View

2.
Walsh C, Wen B, Chinnaiyan A, ORourke K, Dixit V, Hedrick S . A role for FADD in T cell activation and development. Immunity. 1998; 8(4):439-49. DOI: 10.1016/s1074-7613(00)80549-x. View

3.
Pinzon-Charry A, Maxwell T, McGuckin M, Schmidt C, Furnival C, Lopez J . Spontaneous apoptosis of blood dendritic cells in patients with breast cancer. Breast Cancer Res. 2006; 8(1):R5. PMC: 1413992. DOI: 10.1186/bcr1361. View

4.
Fadok V, Bratton D, Konowal A, Freed P, Westcott J, Henson P . Macrophages that have ingested apoptotic cells in vitro inhibit proinflammatory cytokine production through autocrine/paracrine mechanisms involving TGF-beta, PGE2, and PAF. J Clin Invest. 1998; 101(4):890-8. PMC: 508637. DOI: 10.1172/JCI1112. View

5.
Park Y, Lee S, Sung Y . Cutting Edge: CpG DNA inhibits dendritic cell apoptosis by up-regulating cellular inhibitor of apoptosis proteins through the phosphatidylinositide-3'-OH kinase pathway. J Immunol. 2001; 168(1):5-8. DOI: 10.4049/jimmunol.168.1.5. View