Immunology
XIAP controls RIPK2 signaling by preventing its deposition in speck-like structuresThis study provides evidence that the NOD1/2-associated kinase RIPK2 localizes to detergent insoluble cytosolic complexes upon activation and suggests novel regulatory mechanisms for RIPK2 signaling.
Inhibition of host NOX1 blocks tumor growth and enhances checkpoint inhibitor–based immunotherapyBlocking NOX1 with the novel small molecule inhibitor GKT771 inhibits tumor growth in mice by targeting tumor lymph/angiogenesis and promoting antitumor immune cells recruitment. GKT771 emerges as a novel and promising anticancer drug worth translating into the clinics.
Tumor-intrinsic response to IFNγ shapes the tumor microenvironment and anti–PD-1 response in NSCLCUsing an immunocompetent mouse model of NSCLC, this study demonstrates that tumor-intrinsic response to IFNγ determines response to anti–PD-1 through alterations in the tumor microenvironment.
MicroRNA-155 is essential for the optimal proliferation and survival of plasmablast B cellsTracking antigen-specific B cells in vivo since the onset of antigen stimulation shows that miR-155 regulates the early expansion of B-blasts and later on the optimal proliferation and survival of plasmablasts in a B-cell–intrinsic manner.
Chitinase 1 regulates pulmonary fibrosis by modulating TGF-β/SMAD7 pathway via TGFBRAP1 and FOXO3Chitinase 1 (CHIT1) plays a role in the pathogenesis of pulmonary fibrosis by modulating canonical and noncanonical TGF-β signaling via interaction with TGFBRAP1 and FOXO3. These findings highlight the CHIT1/SMAD7 axis as a potential biomarker and therapeutic target of pulmonary fibrosis.
Development of a new monoclonal antibody specific to mouse Vγ6 chainUsing a novel mAb specific to Vγ6 TCR, we find Vγ6+ γδT cells are located in association with medullary thymic epithelial cells and play crucial roles in protection against Klebsiella pneumoniae infection but are pathogenic in psoriasis-like dermatitis in agreement with earlier studies.
A dual role for SAMHD1 in regulating HBV cccDNA and RT-dependent particle genesisOur study highlights a dual role for SAMHD1 in regulating hepatitis B virus cccDNA levels and reverse transcriptase–dependent particle genesis.
Functional inhibition of acid sphingomyelinase disrupts infection by intracellular bacterial pathogensMany intracellular pathogens hijack cholesterol. Inhibiting acid sphingomyelinase alters cholesterol traffic to target different intracellular bacteria, signifying a host-directed approach for treating infectious disease.
Gene editing enables T-cell engineering to redirect antigen specificity for potent tumor rejectionTargeted integration of a tumor-reactive T-cell receptor into the TRAC locus using CRISPR-Cas9 and AAV6 redirects primary human T cells against tumor cells in vitro and in vivo.
Worldwide genetic variation of the IGHV and TRBV immune receptor gene families in humansThis article presents a comprehensive study of the IGHV and TRBV gene families in a globally diverse sample of humans and shows that the two gene families exhibit starkly different patterns of variation.