Tissue-targeted regulators of complement for amelioration of human disease: rationale and novel therapeutic strategies

J Immunol. 2025 Apr 21:vkaf053. doi: 10.1093/jimmun/vkaf053. Online ahead of print. ABSTRACT The complement system is an essential part of innate immunity, and dysregulated complement is an underlying driver in many inflammatory and autoimmune diseases. Currently approved complement-focused therapeutics rely on systemic blockade of complement activation, but a major challenge with this approach is that … Read more

Deciphering the role of IL-17D, its newly identified receptor CD93, and IL-17D-CD93 axis in health and disease

J Immunol. 2025 Apr 21:vkaf061. doi: 10.1093/jimmun/vkaf061. Online ahead of print. ABSTRACT This review explores interleukin (IL)-17D and its receptor CD93, highlighting their structural, functional, and clinical aspects. Identifying CD93 as the receptor for IL-17D has advanced understanding of the IL-17 family and its signaling pathways. IL-17D, with its unique glycoprotein structure, plays diverse roles … Read more

Type I interferon regulation of group I ILC subsets during both homeostasis and cytomegalovirus infection

J Immunol. 2025 Apr 21:vkaf051. doi: 10.1093/jimmun/vkaf051. Online ahead of print. ABSTRACT Type 1 innate lymphoid cells (ILC1s) and conventional natural killer cells belong to the group 1 ILCs (gILC1), characterized largely by T-bet expression and interferon γ secretion. While much has been done to define factors that regulate the development, differentiation, and effector functions … Read more

Dimethyl Fumarate Negatively Regulates MYC Signaling and Promotes Cell‐Cycle Arrest in T‐Cells through a GSH‐Dependent Mechanism. [[{“value”:”Kazuya Sato, Shin‐ichiro Kawaguchi, Junko Izawa, Takashi Ikeda, Kiyomi Mashima, Norihito Takayama, Hiroko Hayakawa, Kaoru Tominaga, Hitoshi Endo, Yoshinobu Kanda”}]]

Dimethyl fumarate (DMF) inhibits T-cell proliferation and induces apoptosis by depleting glutathione (GSH) and accumulating reactive oxygen species (ROS). Here, we show that DMF-induced oxidative stress disrupts multiple cell-signaling pathways, including MYC, leading to cell cycle arrest and impaired proliferative responses in activated T-cells. ABSTRACT Recent evidence indicates that the TCA cycle metabolite fumarate plays … Read more

Updating the Discontinuity Theory to the Extended Immunity: The Symmunobiome Concept. [[{“value”:”Federico Boem, Ingrid Lamminpää, Amedeo Amedei”}]]

The evolution of the concept of the immune system from a set of composed cells and tissue that defend the host from exogenous agents into a system that has regulatory and homeostatic functions determined by the interaction with microorganisms as a functional part of an extended immune system, that we call symmunobiome. ABSTRACT The immune … Read more

Combined Deletion of ZFP36L1 and ZFP36L2 Drives Superior Cytokine Production in T Cells at the Cost of Cell Fitness. [[{“value”:”Nordin D. Zandhuis, Antonia Bradarić, Carmen van der Zwaan, Arie J. Hoogendijk, Branka Popović, Monika C. Wolkers”}]]

The RNA-binding proteins ZFP36L1 and ZFP36L2 regulate in T cells the production of the key effector molecules TNF, IL-2, and IFNγ. Genetic deletion of ZFP36L1 and ZFP36L2 induces superior cytokine production in continuously activated tumor-infiltrating lymphocytes. However, ZFP36L1+ZFP36L2-deficient T cells exhibit reduced cell fitness: they more frequently undergo apoptosis, potentially due to disrupted cell cycle … Read more

Human IL‐6‐Producing B Cells Promote the Differentiation of Monocytes Toward an Anti‐Inflammatory CD16⁺CD163⁺CD206⁺PD‐L1⁺ Phenotype in Tuberculosis. [[{“value”:”Alan Bénard, Luciana Balboa, Maxime Caouaille, Lea Ravon‐Katossky, Etienne Meunier, Simon Fillatreau, Maria Del Carmen Sasiain, Olivier Neyrolles, Denis Hudrisier”}]]

The supernatant of M. tuberculosis-stimulated B cells promotes monocyte polarization toward an anti-inflammatory CD16⁺CD163⁺CD206⁺PD-L1⁺ phenotype via an IL-6/STAT3 pathway. Confirmed with B cells from TB patients, this pathway impairs monocyte proinflammatory functions and may contribute to immune suppression in tuberculosis. Created in BioRender. Neyrolles, O. (2025) https://BioRender.com/930ras3 ABSTRACT The polarization of the monocyte/macrophage compartment toward an … Read more

Autoimmunity in inflammatory bowel disease: a holobiont perspective

Curr Opin Immunol. 2025 Apr 18;94:102557. doi: 10.1016/j.coi.2025.102557. Online ahead of print. ABSTRACT Adaptive immunity towards self-antigens (autoimmunity) and intestinal commensal microbiota is a key feature of inflammatory bowel disease (IBD). Considering mucosal adaptive immunity from a holobiont perspective, where the host and its microbiome form a single physiological unit, emphasises the challenge of avoiding … Read more

A zebrafish model of intestinal epithelial damage reveals macrophages and igfbp1a as major modulators of mucosal healing. Rodrigo A Morales Castro

Mucosal Immunol. 2025 Apr 17:S1933-0219(25)00042-X. doi: 10.1016/j.mucimm.2025.04.004. Online ahead of print. ABSTRACT Promoting intestinal regeneration and enhancing mucosal healing have emerged as promising therapeutic alternatives for treating intestinal disorders that compromise epithelial barrier integrity and function. However, the cellular and molecular mechanisms underlying these processes remain poorly understood. This knowledge gap is partly due to … Read more

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