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Human PBMC-based humanized mice exhibit myositis features and serve as a drug evaluation model.
Inflamm Regen
January 2025
Oncology & Immunology Unit, Research Division, Mitsubishi Tanabe Pharma Corporation, Kanagawa, 227-0033, Japan.
Idiopathic inflammatory myopathies (IIMs) are a group of autoimmune disorders characterized by immune cell infiltration of muscle tissue accompanied by inflammation. Treatment of IIMs is challenging, with few effective therapeutic options due to the lack of appropriate models that successfully recapitulate the features of IIMs observed in humans. In the present study, we demonstrate that immunodeficient mice transplanted with human peripheral blood mononuclear cells (hPBMCs) exhibit the key pathologic features of myositis observed in humans and develop graft-versus-host disease.
View Article and Find Full Text PDFSingle cell transcriptomics in blood of patients with chronic obstructive pulmonary disease.
BMC Pulm Med
January 2025
Department of Internal Medicine, Kangwon National University Hospital, Chuncheon, Korea.
Background: Chronic obstructive pulmonary disease (COPD) is a leading cause of morbidity and mortality worldwide. Single-cell RNA sequencing (scRNA-seq) provides gene expression profiles at the single-cell level. Hence, we evaluated gene expression in the peripheral blood of patients with COPD.
View Article and Find Full Text PDFEffects of injectable trace minerals (Se, Zn, Cu, and Mn) administration on the immune response elicited by primary intranasal modified-live virus vaccination in dairy calves.
Vet Res Commun
January 2025
Brooksco Dairy, L.L.C. Quitman, Quitman, 31643-9403, GA, USA.
The objective was to determine the effects of injectable trace minerals (ITM, containing Se, Cu, Zn & Mn) administered at the time of primary intranasal (IN) modified-live virus (MLV) vaccination of young dairy calves on the serum neutralizing antibody (SNA) titers to Bovine herpes virus 1 (BHV1), Bovine respiratory syncytial virus (BRSV), and Bovine Parainfluenza type 3 virus (BPIV); cytokine expression in peripheral white blood cells, and BHV1-specific IgA titers in nasal secretions following the vaccination. A total of 60 calves (1 month old) were administered an IN MLV vaccine containing BHV1, BRSV, BPIV (Inforce 3) and randomly assigned to one of two experimental groups: ITM (n = 30; Multimin90, containing Se, Cu, Zn, and Mn) or SAL (n = 30; sterile saline). There was a consistent decay in virus-specific SNA titers in both groups.
View Article and Find Full Text PDFTargeted dual biologic therapy for erythroderma of unknown etiology guided by high-parameter peripheral blood immunophenotyping.
Sci Rep
January 2025
Department of Dermatology, University of Maryland School of Medicine, 419 West Redwood Street, Suite 235, Baltimore, MD, 21201, USA.
Erythroderma is a severe and heterogeneous inflammatory skin condition with little guidance on the approach to management in cases of unknown etiology. To guide therapeutic selection, we sought to create an immunophenotyping platform able to identify aberrant cell populations and cytokines in subtypes of erythroderma. We performed high-parameter flow cytometry on peripheral blood mononuclear cells (PBMCs) and whole blood of a patient with refractory idiopathic erythroderma, erythrodermic patients with Sézary syndrome and pityriasis rubra pilaris, and healthy controls.
View Article and Find Full Text PDFInfiltrating peripheral monocyte TREM-1 mediates dopaminergic neuron injury in substantia nigra of Parkinson's disease model mice.
Cell Death Dis
January 2025
NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou, China.
Neuroinflammation is a key factor in the pathogenesis of Parkinson's disease (PD). Activated microglia in the central nervous system (CNS) and infiltration of peripheral immune cells contribute to dopaminergic neuron loss. However, the role of peripheral immune responses, particularly triggering receptor expressed on myeloid cells-1 (TREM-1), in PD remains unclear.
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