Current Opinion in Immunology

Curr Opin Immunol. 2026 May 4;100:102784. doi: 10.1016/j.coi.2026.102784. Online ahead of print. ABSTRACT The lupus anticoagulant (LA) phenomenon represents a paradoxical prothrombotic state characterised by inhibition of phospholipid-dependent coagulation assays in vitro, despite a strong association with thrombosis and pregnancy morbidity in vivo. LA is a central laboratory criterion for the diagnosis and risk stratification … Read more

Curr Opin Immunol. 2026 Apr 30;100:102782. doi: 10.1016/j.coi.2026.102782. Online ahead of print. ABSTRACT Systemic lupus erythematosus (SLE) is a heterogeneous autoimmune disease characterized by fluctuating multisystem involvement, relapsing-remitting activity, and substantial risk of irreversible organ damage. Standardized disease activity indices have facilitated clinical trials and research, yet integration into clinical practice has not occurred for … Read more

Curr Opin Immunol. 2026 Apr 29;100:102783. doi: 10.1016/j.coi.2026.102783. Online ahead of print. ABSTRACT Allogeneic hematopoietic cell transplantation (alloHCT) is curative for many patients with high-risk, hematologic malignancies. AlloHCT depends on a graft versus malignancy (GVM) phenomenon, whereby donor-derived immune cells recognize and eradicate malignant host cells. Successful GVM correlates with the risk of alloreactivity against … Read more

Curr Opin Immunol. 2026 Apr 27;100:102781. doi: 10.1016/j.coi.2026.102781. Online ahead of print. ABSTRACT Viral encephalitis (VE) is a universal menace accounting for severe morbidity and mortality among the affected individuals. VE is the cerebral inflammation triggered by viral infections. In the central nervous system, microglia are the frontline responders that provide defense against invading pathogens, … Read more

Curr Opin Immunol. 2026 Apr 22;100:102780. doi: 10.1016/j.coi.2026.102780. Online ahead of print. ABSTRACT Ca²⁺ release-activated Ca²⁺ (CRAC) channels facilitate store-operated Ca²⁺ entry in both immune and nonimmune cells. They are crucial for the function of many immune cell types and strongly associated with the pathophysiology of immune-related disorders. Inherited null mutations in the genes encoding … Read more

Curr Opin Immunol. 2026 Apr 20;100:102770. doi: 10.1016/j.coi.2026.102770. Online ahead of print. ABSTRACT Antiphospholipid syndrome (APS) is a systemic autoimmune disorder characterized by thrombosis, microvascular disease, pregnancy morbidity, or non-thrombotic manifestations in patients with antiphospholipid antibodies. The mechanistic differentiation of these clinical phenotypes has diagnostic and therapeutic implications. Across APS phenotypes, a shared set of … Read more

Curr Opin Immunol. 2026 Apr 16;100:102777. doi: 10.1016/j.coi.2026.102777. Online ahead of print. ABSTRACT Immunosenescence is a multidimensional remodeling of immunity, characterized by inflammaging, cellular senescence, T-cell exhaustion, and thymic involution, that raises infection and disease risk with age. Emerging evidence, notably from centenarians, shows immune aging follows divergent trajectories: rather than a uniform decline, extreme … Read more

Curr Opin Immunol. 2026 Apr 16;100:102779. doi: 10.1016/j.coi.2026.102779. Online ahead of print. ABSTRACT Multiple sets of classification/diagnostic criteria have been revised recently in rheumatology, with issues from why to how they were developed coming to light. These issues range from the worse specificity of the new sets of criteria to methodological issues in their development, … Read more

Curr Opin Immunol. 2026 Apr 16;100:102778. doi: 10.1016/j.coi.2026.102778. Online ahead of print. ABSTRACT Observational studies serve as a critical alternative when randomized trials are precluded by ethical concerns, high costs, or the need for rapid evidence-based hypothesis generation. Increasing reliance on routinely collected observational data (electronic health records, registries, and claims) has been accompanied by … Read more

Curr Opin Immunol. 2026 Apr 15;100:102775. doi: 10.1016/j.coi.2026.102775. Online ahead of print. ABSTRACT Antiphospholipid syndrome (APS) presents ongoing challenges in understanding its pathogenesis, standardizing diagnostic tests, and optimizing treatment strategies. The 18th International Congress on Antiphospholipid Antibodies (ICAPA) was held in Kyoto in September 2025. This narrative meeting wrap-up summarizes selected highlights from the Congress … Read more