Background/aim: Gemcitabine is a drug commonly used to treat pancreatic cancer but chemoresistance to it is a common clinical issue. KML001 (sodium meta-arsenite) has demonstrated certain antitumor activity. The objective of the study was to evaluate the influence of KML001 on the anticancer activity of gemcitabine against pancreatic cancer cells.
Materials And Methods: Cell proliferation, migration, and invasion were assessed, as well as the expression of nuclear factor-kappa B (NF-κB) p65, epidermal growth factor receptor (EGFR), matrix metalloproteinase-2 (MMP2), and vascular endothelial growth factor-C (VEGFC) in pancreatic cancer cells.
Results: Treatment with a combination of KML001 and gemcitabine resulted in significant inhibition of cell proliferation, migration, and invasion, and significantly reduced EGFR and MMP2 expression compared to gemcitabine treatment-alone.
Conclusion: Combination treatment of gemcitabine and KML001 could be an effective chemotherapeutic treatment for pancreatic cancer.
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Probiotics Antimicrob Proteins
December 2024
Division of Gastroenterology, Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-Ro, Jongno-Gu, Seoul, Republic of Korea.
Pancreatic cancer is influenced by interactions between cancer cells and the tumor microenvironment (TME), including tumor-infiltrating lymphocytes (TILs). Specifically, CD8 + T cells impact prognosis by eliminating cancer cells. Recent studies have revealed that microbiomes are present in pancreatic tissues and may affect tumor growth and immune responses.
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December 2024
Christopher S. Bond Life Sciences Center 540F, University of Missouri, 1201 E Rollins, Columbia, MO, 65211, USA.
Copper promotes tumor growth and metastasis through a variety of mechanisms, most notably as a cofactor within the lysyl oxidase (LOX) family of secreted cuproenzymes. Members of this family, which include LOX and LOX-like enzymes LOXL1-4, catalyze the copper-dependent crosslinking of collagens and elastin within the extracellular matrix (ECM). Elevated LOX expression is associated with higher incidence and worse prognosis in multiple cancers, including colorectal, breast, pancreatic, and head and neck.
View Article and Find Full Text PDFMol Omics
December 2024
CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal.
Cancer remains the second leading cause of death worldwide, surpassed only by cardiovascular disease. From the different types of cancer, pancreatic cancer (PaC) has one of the lowest survival rates, with a survival rate of about 20% after the first year of diagnosis and about 8% after 5 years. The lack of highly sensitive and specific biomarkers, together with the absence of symptoms in the early stages, determines a late diagnosis, which is associated with a decrease in the effectiveness of medical intervention, regardless of its nature - surgery and/or chemotherapy.
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December 2024
Department of Gastroenterology, Lanzhou University Second Hospital, Lanzhou, China.
Background: Pancreatic adenocarcinoma (PAAD) is a deadly cancer marked by extensive collagen deposition and limited response to immunotherapy. Discoidin domain receptor1 (DDR1), part of the transmembrane receptor tyrosine kinase family, is linked to inflammation regulation and immune cell infiltration. However, its role in controlling cytokines and chemokines in the microenvironment of PAAD is still unclear.
View Article and Find Full Text PDFUnlabelled: Proteolysis of hydrophobic helices is required for complete breakdown of every transmembrane protein trafficked to the lysosome and sustains high rates of endocytosis. However, the lysosomal mechanisms for degrading hydrophobic domains remain unknown. Combining lysosomal proteomics with functional genomic data mining, we identify Lysosomal Leucine Aminopeptidase (LyLAP; formerly Phospholipase B Domain-Containing 1) as the hydrolase most tightly associated with elevated endocytic activity.
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