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Aging-induced immune microenvironment remodeling fosters melanoma in male mice via γδ17-Neutrophil-CD8 axis.
Nat Commun
December 2024
State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China.
Aging is associated with increased tumor metastasis and poor prognosis. However, how an aging immune system contributes to the process is unclear. Here, single-cell RNA sequencing reveals that in male mice, aging shifts the lung immune microenvironment towards a premetastatic niche, characterized by an increased proportion of IL-17-expressing γδT (γδ17) and neutrophils.
View Article and Find Full Text PDFGeneralized pustular psoriasis: immunological mechanisms, genetics, and emerging therapeutics.
Trends Immunol
December 2024
College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Dermatology, Chang Gung Memorial Hospital, Keelung, Taiwan; Department of Dermatology, Chang Gung Memorial Hospital, Linkou, Taiwan; Department of Dermatology, Chang Gung Memorial Hospital, Taipei, Taiwan; Department of Dermatology, Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan; Cancer Vaccine and Immune Cell Therapy Core Laboratory, Department of Medical Research, Chang Gung Memorial Hospital, Linkou, Taiwan; Chang Gung Immunology Consortium, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan; Department of Dermatology, Xiamen Chang Gung Hospital, Xiamen, China; Xiamen Chang Gung Allergology Consortium, Xiamen Chang Gung Hospital, Xiamen, China; Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Immune-Oncology Center of Excellence, Chang Gung Memorial Hospital, Linkou, Taiwan; Whole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan; Genomic Medicine Core Laboratory, Chang Gung Memorial Hospital, Linkou, Taiwan; School of Medicine, National Tsing Hua University, Hsinchu, Taiwan. Electronic address:
Generalized pustular psoriasis (GPP) is a rare human autoinflammatory disorder with life-threatening systemic effects. Keratinocyte-derived interleukin (IL)-36 signaling has been identified as a key mediator of immune response in the skin of affected individuals. Recognition of various mutations along the IL-36 axis and the downstream nuclear transcription factor κB (NF-κB) signaling have established GPP as genetically, immunologically, and histopathologically distinct and amenable to immunomodulation, which is epitomized by the recent success of IL-36 antagonism.
View Article and Find Full Text PDFAssociation of tyrosine kinase 2 polymorphisms with susceptibility to microscopic polyangiitis in a Guangxi population.
PeerJ
December 2024
Department of Nephrology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
Background: Heredity and epigenetics affect the pathogenesis of microscopic polyangiitis (MPA). Tyrosine kinase 2 (TYK2) polymorphisms (rs2304256C > A, rs280519A > G, and rs12720270G > A) may be potential protective factors against anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). Current research suggests that TYK2 is associated with various autoimmune diseases; however, no study has examined the relationship between TYK2 polymorphisms and AAV.
View Article and Find Full Text PDFCanine and Feline Pemphigus Foliaceus-an Update on Pathogenesis and Treatment.
Vet Clin North Am Small Anim Pract
December 2024
Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607, USA.
Pemphigus foliaceus (PF) is one of the most common autoimmune skin diseases of dogs and cats and is characterized by the development of pustules, crusts, erosions, scales, and alopecia. Albeit poorly understood, the pathophysiology of canine and feline PF appears to involve immune dysregulation and immunoglobulin G autoantibodies that are directed against the keratinocyte cell surface. At present, the management of canine and feline PF relies on the long-term to lifelong prescription of immunosuppressive medications.
View Article and Find Full Text PDF[Clinical and pathological features of children with immunoglobulin A vasculitis with nephritis accompanied by different proportions of crescent formation].
Zhongguo Dang Dai Er Ke Za Zhi
December 2024
Department of Pediatrics, First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450000, China.
Objectives: To investigate the impact of the different proportions of crescent formation on clinical manifestations and pathological features in children with immunoglobulin A vasculitis with nephritis (IgAVN).
Methods: The children with IgAVN were divided into no-crescent group (75 children), ≤25% crescent group (156 children), and >25% crescent group (33 children).
Results: Compared with the no-crescent group, the other two groups had significant increases in 24-hour urinary protein, urinary immunoglobulin G (IgG)/creatinine ratio, urine red blood cell count, fibrinogen, and neutrophil-lymphocyte ratio, a significant reduction in serum IgG, and a significantly higher proportion of children with low albumin and hypercoagulability, pathological grade III+IV or diffuse mesangial proliferation (<0.
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