The Journal of Immunology

J Immunol. 2026 Jun 7;215(6):vkag094. doi: 10.1093/jimmun/vkag094. ABSTRACT MR1 is a non-polymorphic, ubiquitously expressed, MHC class I-like antigen-presenting molecule that presents small-molecule metabolites to T cells. Studies have shown that MR1 plays a role in microbial infection, inflammation, and tumor immunity. The antigens it presents include metabolites of microbial and self-origin as well as small-molecule … Read more

J Immunol. 2026 Jun 7;215(6):vkag134. doi: 10.1093/jimmun/vkag134. ABSTRACT Gamma delta (γδ) T cells undergo a distinct developmental pathway within the thymus, where transforming growth factor β (TGF-β) exerts pivotal regulatory influence. However, the precise mechanistic contributions of TGF-β to γδ T cells differentiation and functional maturation remain incompletely understood. Here, we show that TGF-β regulates … Read more

J Immunol. 2026 Jun 7;215(6):vkag157. doi: 10.1093/jimmun/vkag157. ABSTRACT The complement system and natural killer (NK) cells play crucial roles in tumor growth and metastasis. The role of the complement system in affecting the phenotype and anti-tumor function of NK cells remains poorly understood. Using the B16F10 mouse melanoma model, we demonstrated that NK cells from … Read more

J Immunol. 2026 Jun 7;215(6):vkag169. doi: 10.1093/jimmun/vkag169. ABSTRACT Interferons (IFNs) affect almost all nucleated cells and induce transcriptional events that are associated with control of intracellular infections as well as regulatory pathways that influence inflammatory processes. How different hematopoietic and non-hematopoietic cell types interpret these signals is a reflection of cellular context and function. For … Read more

J Immunol. 2026 Jun 7;215(6):vkag165. doi: 10.1093/jimmun/vkag165. ABSTRACT Pancreatic ductal adenocarcinoma (PDAC) is characterized by an immunosuppressive tumor microenvironment (TME) in which cancer-associated fibroblasts (CAFs) play pivotal roles in shaping therapeutic responses. Among these, MHC-II-expressing antigen-presenting CAFs (apCAFs) modulate CD4 T-cell activity, yet their contribution to the antitumor immune response remains unclear. Using tumor clones … Read more

J Immunol. 2026 Jun 7;215(6):vkag158. doi: 10.1093/jimmun/vkag158. ABSTRACT In human melanoma, tumor cell-specific MHC class II expression is associated with improved response to programmed death 1 and programmed death-ligand 1 blockade; yet the direct effect of melanoma cell-specific MHC class II expression on anti-melanoma T cell responses remains largely unknown. In the clinically relevant Yale … Read more

J Immunol. 2026 Jun 7;215(6):vkag127. doi: 10.1093/jimmun/vkag127. ABSTRACT Downregulation of ectonucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1) has been implicated in autophagic cell death. However, how ENPP1 regulates the interplay between autophagy and ferroptosis to maintain trophoblast homeostasis in the context of gestational diabetes mellitus (GDM) remains unclear. To determine ENPP1’s role in autophagy-dependent ferroptosis and its contribution … Read more

J Immunol. 2026 Jun 7;215(6):vkag151. doi: 10.1093/jimmun/vkag151. ABSTRACT Inflammatory diseases arise from complex interactions between immune signaling and cellular stress. Although endoplasmic reticulum (ER) stress is a key modulator of immunity, the mechanisms by which it promotes inflammatory pathology remain incompletely understood. Notably, ER stress-induced NF-κB activation alone is insufficient to account for robust IL-6 … Read more

J Immunol. 2026 Jun 7;215(6):vkag160. doi: 10.1093/jimmun/vkag160. ABSTRACT The V158F polymorphism found in the human Fc receptor CD16a (also known as FcγRIIIa) is thought to influence autoimmune disorders and responses to IgG-based therapies. V158F is known to influence the IgG affinity, and thereby triggering of the CD16a receptor expressed on various immune cells. In contrast … Read more

J Immunol. 2026 Jun 7;215(6):vkag168. doi: 10.1093/jimmun/vkag168. ABSTRACT Forkhead Box P1 (Foxp1) is a transcription factor critical for the proper development of multiple tissues. While Foxp1 has a well-described role in regulating adaptive immunity through modulation of T and B cells, a function in medullary thymic epithelial cells (mTECs) has not been reported. Here we … Read more