Intestinal T-cell lymphomas are an uncommon type of gastrointestinal malignancy, primarily found in the stomach and small bowel. The liver represents the most common distant organ for metastasis in gastrointestinal malignancies, followed by the lungs. Brain and muscular metastases are rare. We present intestinal T-cell lymphoma with a primary site in the sigmoid colon and metastasis to the brain, meninges, and psoas muscle. Biopsy of the malignant mass confirmed intestinal T-cell lymphoma. To our knowledge, this is the first colon T-cell lymphoma with primary brain and meningeal metastasis with another uncommon site of muscular metastasis.
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http://dx.doi.org/10.14309/crj.0000000000001172 | DOI Listing |
J Clin Invest
January 2025
Division of Rheumatology, Center of Excellence for Intestinal and Immunology Research, University of Alberta, Edmonton, Alberta, Canada.
Superantigen-induced (Sag-induced) autoimmunity has been proposed as a mechanism for many human disorders, without a clear understanding of the potential triggers. In this issue of the JCI, McCarthy and colleagues used the SKG mouse model of rheumatoid arthritis to characterize the role of Sag activity in inflammatory arthritis by profiling arthritogenic naive CD4+ T cells. Within the diseased joints, they found a marked enrichment of T cell receptor-variable β (TCR-Vβ) subsets that were reactive to the endogenously encoded mouse mammary tumor virus (MMTV) Sag.
View Article and Find Full Text PDFImmunity
January 2025
Laboratory of Neuroimmunology, School of Life Sciences, Hangzhou 310030, Zhejiang, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, Zhejiang, China. Electronic address:
Immune activation during sustained stress typically worsens stress-related psychopathology. Whether it can enhance stress resilience remains unclear. In this issue of Immunity, Xia, Lu, Lan et al.
View Article and Find Full Text PDFFASEB J
January 2025
Department of Pharmacy, College of Pharmacy, Kangwon National University, Chuncheon, South Korea.
Metabolic dysfunction-associated steatohepatitis (MASH) is characterized by severe liver inflammation and fibrosis due to an imbalanced immune response caused by enhanced bacterial components. The progression of MASH is closely linked to increased permeability of intestinal mucosal barrier facilitating enter of bacterial components into hepatic portal venous system. B cells are important immune cells for adaptive responses and enhance hepatic inflammation through cytokine production and T cell activation.
View Article and Find Full Text PDFInt Immunopharmacol
January 2025
Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA. Electronic address:
Here, we investigated the relationship between the attenuation of lung cancer growth due to oral administration of Euglena gracilis water extract (EWE) and T cell stimulation. Orally administered EWE was revealed to increase PD-1 and PD-L1 mRNA and proteins primarily in tumor-infiltrating lymphocytes (TILs), which was correlated with a significant decrease in the tumor weights in mice. A combination treatment with EWE and anti-PD-1 antibody significantly decreased the growth of murine lung tumors more than treatment with either alone by increasing the number of TILs and attenuating T cell exhaustion.
View Article and Find Full Text PDFClin Kidney J
January 2025
Transplantation and Liver Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.
Background: Lysinuric protein intolerance (LPI) is a metabolic disorder that leads to dysfunctional intestinal absorption and kidney clearance of cationic amino acids. Chronic kidney disease develops in many LPI patients and leads to end-stage kidney disease in at least 10% of patients. Since data on kidney transplants in LPI patients are limited, we analysed the outcomes of LPI patients after transplantation in Finland.
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