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The dynamics of CD4+ T cell proliferation and regulation.
J Biol Dyn
December 2025
School of Mathematics and Statistics, Donghua University, Shanghai, People's Republic of China.
We use mathematical modeling to study the proliferation dynamics of CD4+ T cells within an immune response. This proliferation is driven by the autocrine reaction of helper T cells and interleukin-2 (IL-2), and regulated by natural regulatory T cells (nTregs). Previous studies suggested that a fratricidal mechanism is necessary to eliminate helper T cells post-infection.
View Article and Find Full Text PDFIncreasing robustness of assay for immnosuppressive effect of mesenchymal stromal/stem cells: The role of inflammatory cytokine production by peripheral blood mononuclear cells.
Regen Ther
March 2025
Division of Drugs, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki Ward, Kawasaki City, Kanagawa, 210-9501, Japan.
Introduction: The Quality by Design (QbD) approach for developing cell therapy products using mesenchymal stromal/stem cells (MSCs) is a promising method for designing manufacturing processes to improve the quality of MSC products. It is crucial to ensure the reproducibility and robustness of the test system for evaluating critical quality attributes (CQAs) in the QbD approach for manufacturing of pharmaceutical products. In this study, we explored the key factors involved in establishing a robust evaluation system for the immunosuppressive effect of MSCs, which can be an example of a CQA in developing and manufacturing therapeutic MSCs for treating graft-versus-host disease, , and we have identified method attributes to increase the robustness of a simple assay to assess the immunosuppressive effects of MSCs.
View Article and Find Full Text PDFSingle-cell analyses of intestinal epithelium reveal the dysregulation of gut immune microenvironment in systemic lupus erythematosus.
J Transl Med
January 2025
Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, 210042, China.
Background: The small intestine harbors a rich array of intestinal intraepithelial lymphocytes (IELs) that interact with structural cells to collectively sustain gut immune homeostasis. Dysregulation of gut immune homeostasis was implicated in the pathogenesis of multiple autoimmune diseases, however, whether this homeostasis is disrupted in a lupus autoimmune background remains unclear.
Methods: We performed single-cell RNA sequencing (scRNA-seq) analyses to elucidate immune and structural milieu in the intestinal epithelium of MRL/Lpr lupus mice (Lpr mice) and MRL/Mpj control mice (Mpj mice).
Association of Circulating Basophil Count with Gastric Cancer Prognosis.
J Gastrointest Cancer
January 2025
Department of Gastroenterological Surgery, Toho University Medical Center Omori Hospital, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 142-8541, Japan.
Purpose: Basophils play a crucial role in immunoglobulin E-mediated allergic reactions and parasitic infections. Recently, a low basophil count was reported to be a poor prognostic indicator in patients with malignant tumors. This study aimed to investigate the cut-off value to evaluate the clinicopathological and prognostic significance of the basophil count in patients with gastric cancer.
View Article and Find Full Text PDFMETTL3/miR-192-5p/SCD1 Axis Regulates Lipid Metabolism to Affect T Cell Differentiation in Asthma.
Mediators Inflamm
January 2025
Department of Pediatric Pulmonology, Children's Hospital of Soochow University, No 303, Jingde Road, Suzhou 215003, China.
This study aimed to explore the mechanisms underlying T-cell differentiation in asthma. Flow cytometry was performed to detect Th cells. LC-MS/MS was performed to assess lipid metabolism.
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