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Myeloid-derived suppressor cells (MDSCs) are expanded in cancer patients, have an intrinsic immunosuppressive function, and thus may play a role in resistance to immunotherapy. Ulceration of the melanoma primary is associated with more aggressive disease and is an independent prognostic factor for melanoma-specific survival. However, the underlying factors contributing to this more aggressive phenotype are not completely understood.
View Article and Find Full Text PDFFunctional characterization of novel anti-DEFA5 monoclonal antibody clones 1A8 and 4F5 in inflammatory bowel disease colitis tissues.
Inflamm Res
January 2025
Department of Biochemistry, Cancer Biology, Neuroscience, and Pharmacology, School of Medicine, Meharry Medical College, 1005 D.B. Todd Jr. Blvd, Nashville, TN, USA.
Background: The aberrant expression of α defensin 5 (DEFA5) protein in colonic inflammatory bowel diseases (IBDs) underlies the distinct pathogenesis of Crohn's colitis (CC). It can serve as a biomarker for differentiating CC from Ulcerative colitis (UC), particularly in Indeterminate colitis (IC) cases into UC and CC. We evaluated the specificity of commercially available anti-DEFA5 antibodies, emphasizing the need to further validate their appropriateness for a given application and highlighting the necessity for novel antibodies.
View Article and Find Full Text PDF68Ga-FAPI-04 Versus 18F-FDG PET/CT in Duodenal Synovial Sarcoma.
Clin Nucl Med
January 2025
Departments of Nuclear Medicine, and Pathology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China.
A previously healthy 18-year-old man with a 9-month history of upper abdominal pain and significant weight loss underwent gastroscopy, revealing an ulcerative lesion in the duodenal bulb. Enrolled in a clinical trial, both 18F-FDG and 68Ga-FAPI-04 PET/CT demonstrated similar metabolic activity, though 68Ga-FAPI-04 offered superior lesion delineation. Pathology confirmed synovial sarcoma.
View Article and Find Full Text PDFA Hepatic Oxidative Metabolite of Palmatine Ameliorates DSS-Induced Ulcerative Colitis by Regulating Macrophage Polarization Through AMPK/NF-κB Pathway.
Am J Chin Med
January 2025
School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P. R. China.
Palmatine (PAL) and berberine are both classified as protoberberine alkaloids, derived from several traditional Chinese herbs such as Franch. and Schneid. These compounds are extensively used in treating dysentery and colitis.
View Article and Find Full Text PDFThe Role of Environmental Factors Prior to Diagnosis on the Activity and Severity of Inflammatory Bowel Diseases-Results From the Prospective Population-Based Copenhagen Inflammatory Bowel Disease Inception Cohort.
United European Gastroenterol J
January 2025
Department of Gastroenterology and Hepatology, Copenhagen University Hospital - Herlev and Gentofte, Herlev, Denmark.
Background: The influence of environmental factors on the severity of early inflammatory bowel disease (IBD), including ulcerative colitis (UC) and Crohn's disease (CD), is unclear. Herein, we aimed to investigate the role of environmental factors in the initial phenotype, activity, and severity of IBD.
Methods: Copenhagen IBD Inception Cohort is a prospective population-based cohort of patients with newly diagnosed IBD between May 2021 and May 2023.
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