Proc Natl Acad Sci U S A 2014 Dec 15;111(52):E5678-87. Epub 2014 Dec 15.
Medical Research Council Human Immunology Unit, Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Headington, Oxford OX3 9DS, United Kingdom;
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J Immunol 2015 Jun 29;194(12):5872-84. Epub 2015 Apr 29.
La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037; and
Autophagy regulates cell differentiation, proliferation, and survival in multiple cell types, including cells of the immune system. In this study, we examined the effects of a disruption of autophagy on the differentiation of invariant NKT (iNKT) cells. Using mice with a T lymphocyte-specific deletion of Atg5 or Atg7, two members of the macroautophagic pathway, we observed a profound decrease in the iNKT cell population. Read More
Proc Natl Acad Sci U S A 2014 May 30;111(19):7066-71. Epub 2014 Apr 30.
Department of Immunology,Howard Hughes Medical Institute, University of Washington, Seattle, WA 98109; and
Folliculin-interacting protein 1 (Fnip1) is an adaptor protein that physically interacts with AMPK, an energy-sensing kinase that stimulates mitochondrial biogenesis and autophagy in response to low ATP, while turning off energy consumption mediated by mammalian target of rapamycin. Previous studies with Fnip1-null mice revealed that Fnip1 is essential for pre-B-cell development. Here we report a critical role of Fnip1 in invariant natural killer T (iNKT) cell development. Read More
J Immunol 2014 Mar 7;192(6):2659-66. Epub 2014 Feb 7.
Medical Research Council Centre for Immune Regulation, Institute for Biomedical Research, University of Birmingham, Birmingham B15 2TT, United Kingdom.
In the thymus, interactions with both cortical and medullary microenvironments regulate the development of self-tolerant conventional CD4(+) and CD8(+) αβT cells expressing a wide range of αβTCR specificities. Additionally, the cortex is also required for the development of invariant NKT (iNKT) cells, a specialized subset of T cells that expresses a restricted αβTCR repertoire and is linked to the regulation of innate and adaptive immune responses. Although the role of the cortex in this process is to enable recognition of CD1d molecules expressed by CD4(+)CD8(+) thymocyte precursors, the requirements for additional thymus microenvironments during iNKT cell development are unknown. Read More
J Immunol 2014 Aug 11;193(4):1759-65. Epub 2014 Jul 11.
Translational Tumor Immunology Group, Ludwig Center for Cancer Research, University of Lausanne, 1066 Epalinges, Switzerland;
Invariant NKT (iNKT) cells play critical roles in bridging innate and adaptive immunity. The Raptor containing mTOR complex 1 (mTORC1) has been well documented to control peripheral CD4 or CD8 T cell effector or memory differentiation. However, the role of mTORC1 in iNKT cell development and function remains largely unknown. Read More