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Comparison of different puncture needles used for endoscopic ultrasound-guided fine-needle biopsy of Gastrointestinal subepithelial lesions (≤ 2 cm) with respect to the adequacy of specimen collection: study protocol for a multicenter randomized prospective trial.
Trials
December 2024
Second Department of Internal Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama City, 641-0012, Japan.
Background: Gastrointestinal subepithelial lesions (SELs) range from benign to malignant. Endoscopic ultrasound (EUS)-guided fine-needle biopsy (EUS-FNB) is used widely for pathological diagnosis of SELs. Early diagnosis and treatment are important because all Gastrointestinal stromal tumors (GISTs) have some degree of malignant potential.
View Article and Find Full Text PDFModulating exosomal communication between macrophages and melanoma cancer cells via cyclodextrin-based nanosponges loaded with doxorubicin.
Nanotoxicology
December 2024
Deartment of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
The cellular components of the tumor microenvironment (TME) comprise cancer cells and nonmalignant cells including stromal and immune cells. Exosomes are extracellular vesicles secreted by various types of cells that play a crucial role in intercellular communications within TME. The main goal of this study was to elucidate how exosomes of macrophage cells treated with doxorubicin (DOX) and DOX-loaded cyclodextrin-based nanosponges (DOX-CDNSs), affect melanoma cancer cell proliferation.
View Article and Find Full Text PDFm6A demethylation of NNMT in CAFs promotes gastric cancer progression by enhancing macrophage M2 polarization.
Cancer Lett
December 2024
Digestive Diseases Center, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518107, China. Electronic address:
Cancer associated fibroblasts (CAFs) are the predominant stromal cells in the tumor microenvironment of gastric cancer (GC), interacting with both immune and tumor cells to drive cancer progression. However, the precise link between these interactions and their potential as therapeutic targets remains poorly understood. In this study, we identified for the first time that nicotinamide N-methyltransferase (NNMT) derived from CAFs promoted M2 macrophage polarization, which, in turn, facilitated the proliferation and migration of GC cells.
View Article and Find Full Text PDFGastrointestinal Stromal Tumor of the Rectum: Report of a Case With Long-Term Imatinib Treatment.
Cureus
November 2024
Surgical Oncology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, IND.
Gastrointestinal stromal tumors (GIST) are rare in the rectum. These usually present with symptoms produced by compression of pelvic organs or bleeding. Surgery is the treatment of choice, however, at times the surgery can be mutilating and organ preservation may not be possible.
View Article and Find Full Text PDFPharmacokinetic Interaction between Imatinib and Tacrolimus in Rats.
Curr Drug Metab
December 2024
Department of Pharmacy, the Fourth Hospital of Hebei Medical University, Hebei Key Laboratory of Clinical Pharmacy, Shijiazhuang, China.
Objective: Tacrolimus, a calcineurin inhibitor (CNI), is the first-line treatment for chronic myeloid leukemia (CML) and advanced gastrointestinal stromal tumors (GIST). Imatinib and tacrolimus are both substrates of the hepatic enzymes CYP3A4/5 and efflux transporter P-gp, so drug-drug interactions may occur during their co-administration treatment. Therefore, this study aimed to evaluate the pharmacokinetic interaction between imatinib and tacrolimus in rats.
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