Ruffieux, Hess and colleagues analyze longitudinal phenotyping of patients with coronavirus disease 2019 to show that covariation of innate immune cell numbers, kynurenine metabolites and lipid metabolites influence the restoration of homeostasis, the risk of death and that of long COVID.

Here, the authors show that IFNγ binding to heparan sulfate is a mechanism to restrain IFNγ at the site of production, thereby preventing high systemic levels of this cytokine and associated immunopathology.

Murre and colleagues identify a specific enhancer, E34, within the Igk locus that is required for chromatin remodeling and repositioning to promote Rag-mediated Igkv7-33 V_κ-J_κ gene recombination, needed for generation of anti-phosphorylcholine-specific antibodies. Mice lacking E34 are more susceptible to Streptococcus pneumoniae infections.

Here the authors show how metabolic alteration of acyl chain composition affects phosphoinositide-driven signaling to initiate and sustain CD8⁺ T cell effector function during cell differentiation.

Here, the authors show that IFNγ binding to heparan sulfate is a mechanism to restrain IFNγ at the site of production, thereby preventing high systemic levels of this cytokine and associated immunopathology.

Here the authors show how metabolic alteration of acyl chain composition affects phosphoinositide-driven signaling to initiate and sustain CD8⁺ T cell effector function during cell differentiation.

Ruffieux, Hess and colleagues analyze longitudinal phenotyping of patients with coronavirus disease 2019 to show that covariation of innate immune cell numbers, kynurenine metabolites and lipid metabolites influence the restoration of homeostasis, the risk of death and that of long COVID.

Murre and colleagues identify a specific enhancer, E34, within the Igk locus that is required for chromatin remodeling and repositioning to promote Rag-mediated Igkv7-33 V_κ-J_κ gene recombination, needed for generation of anti-phosphorylcholine-specific antibodies. Mice lacking E34 are more susceptible to Streptococcus pneumoniae infections.

In humans, intrathymic development of DCs is evident but its physiological significance is unknown. Taghon et al. show intrathymic development of DCs as hematopoietic stromal support for the early stages of human T cell development via IRF8-driven transmembrane TNF.

Tanaka and colleagues show that an SNX25–Nrf2 pathway in dermal macrophages sets the threshold for pain sensitivity through modulating the production of the neurotrophic factor NGF.