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    ON THE COVER
    Hamouda et al. generated a new model of multiple myeloma by expressing the Bcl-B gene under the control of VH promoter and Eμ enhancer. Polarized image of renal tissue sections from 18-mo-old mouse stained with Congo red. The bright green is the “apple green birefringence” that is characteristic of amyloid.
    See page 1705

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ISSN 0022-1007
EISSN 1540-9538
In this Issue

Review

Brief Definitive Report

Littlewood-Evans et al. demonstrate that extracellular succinate leads to the propagation of inflammatory macrophage activation, providing translational evidence to support the development of GPR91 antagonists for the treatment of rheumatoid arthritis.

Car enzyme inhibition prevents mast cell responses and inflammation following Trichinella spiralis infection or the induction of food allergy–like disease.

Gearhart and collaborators address the long-standing question of the roles of error-prone DNA polymerases in somatic hypermutation of antibody genes.

Work from the Klein lab shows that CD83 supports T cell selection in the thymus by restraining March8-mediated MHCII ubiquitination and internalization.

Mintern, Villadangos, and colleagues show that MARCH 8 plays a role in the posttranslational regulation of surface MHC II expression in thymic epithelial cells, with important implications for CD4+ T cell selection.

Article

Luciano et al. generate transgenic mice expressing the Bcl-B gene under the control of the VH promoter and Eµ enhancer and show that these mice recapitulate the characteristic features of human MM.

Estrov and collaborators examine the role of fibrocytes in primary myelofibrosis and propose a novel therapeutic approach.

Janes et al. developed an anti-ADAM10 mAb (8C7) that binds to an active form of ADAM10 present in tumors, particularly in stem-like cells. Administration of 8C7 inhibits Notch activity and tumor growth in mouse models, including regrowth after chemotherapy.

Rey et al. generate a mouse model for the spatial propagation of α-synuclein pathology that mimics prodromal Parkinson's disease.

Gay et al. identify a Toxoplasma gondii secreted effector that recruits NuRD transcriptional repressor and blocks IFN-γ–stimulated STAT1-dependent gene expression, thus dampening host responses to infection.

Khan et al. demonstrate that in chronic toxoplasmosis, CD4 T cell–intrinsic expression of Blimp-1 results in progressive exhaustion, which in turn contributes to CD8 T cell exhaustion and poor pathogen control.

Using recombinant antigen variant-expressing chronic LCMV strains, Zehn and colleagues showed that amount rather than antigen strength is a key determinant of inducing a chronic infection phenotype in T cells.

Jonjic et al. show that inflammatory macrophages play an essential role in the control of murine CMV (MCMV) infection through a DNAM-1–PVR pathway.

Phagocyte oxidative burst is the primary source of lethal lung injury during influenza and MRSA coinfection.

Combination of multiple units of allogeneic HSPCs exerts radioprotective and bridging effect, allowing single-donor hematopoiesis by a principal graft.

Activation of TNFR2 with a novel agonist expands T reg cells in vivo and protects allo-HCT recipients from acute GvHD while sparing antilymphoma and antiinfectious properties of transplanted donor T cells.

Xiao and collaborators show that miR-155 regulates T follicular helper cell development and function by suppressing the E3 ubiquitin ligase Peli1.

Zhao and collaborators use linear amplification–mediated high-throughput genome-wide translocation sequencing to examine TCRδ VDJ recombination at an unprecedented resolution.

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