Perforin-Positive Dendritic Cells Exhibit an Immuno-regulatory Role in Metabolic Syndrome and Autoimmunity

Yael Zlotnikov-Klionsky, Bar Nathansohn-Levi, Elias Shezen, Chava Rosen, Sivan Kagan, Liat Bar-On, Steffen Jung, Eric Shifrut, Shlomit Reich-Zeliger, Nir Friedman, Rina Aharoni, Ruth Arnon, Oren Yifa, Anna Aronovich, Yair Reisner

Research output: Contribution to journalArticlepeer-review

Abstract

Emerging evidence suggests that immunological mechanisms underlie metabolic control of adipose tissue. Here, we have shown the regulatory impact of a rare subpopulation of dendritic cells, rich in perforin-containing granules (perf-DCs). Using bone marrow transplantation to generate animals selectively lacking perf-DCs, we found that these chimeras progressively gained weight and exhibited features of metabolic syndrome. This phenotype was associated with an altered repertoire of T cells residing in adipose tissue and could be completely prevented by T cell depletion in vivo. A similar impact of perf-DCs on inflammatory T cells was also found in a well-defined model of multiple sclerosis, experimental autoimmune encephlalomyelitis (EAE). Thus, perf-DCs probably represent a regulatory cell subpopulation critical for protection from metabolic syndrome and autoimmunity.

Original languageEnglish
Article number3173
Pages (from-to)776-787
Number of pages12
JournalImmunity
Volume43
Issue number4
DOIs
StatePublished - 20 Oct 2015
Externally publishedYes

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