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Galectin-1-Induced Tumor Associated Macrophages Repress Antitumor Immunity in Hepatocellular Carcinoma Through Recruitment of Tregs.
Adv Sci (Weinh)
January 2025
Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003, China.
Tumor-associated macrophages (TAMs) are commonly considered accomplices in tumorigenesis and tumor development. However, the precise mechanism by which tumor cells prompt TAMs to aid in evading immune surveillance remains to be further investigated. Here, it is elucidated that tumor-secreted galectin-1 (Gal1) conferred immunosuppressive properties to TAMs.
View Article and Find Full Text PDFDiscovery of 1,4-Disubstituted Cyclohexene Analogues as Selective GPR119 Agonists for the Treatment of Type 2 Diabetes.
J Med Chem
January 2025
School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea.
GPR119 has emerged as a promising target for treating type 2 diabetes and associated obesity, as its stimulation induces the secretion of glucagon-like peptide-1 and glucose-dependent insulinotropic peptide in the intestinal tract as well as the glucose-dependent release of insulin in pancreatic β-cells. We describe the design and synthesis of novel GPR119 agonists containing a 1,4-disubstituted cyclohexene scaffold. Compound displayed nanomolar potency (EC = 3.
View Article and Find Full Text PDFmiR-223 and Chromogranin A Affect Inflammatory Immune Cell Activation in Liver Metastasis of Neuroendocrine Neoplasms.
Cells
January 2025
Department of Hepatology and Gastroenterology, Charité University Medicine Berlin, 13353 Berlin, Germany.
Neuroendocrine neoplasms (NENs) are a diverse group originating from endocrine cells/their precursors in pancreas, small intestine, or lung. The key serum marker is chromogranin A (CgA). While commonly elevated in patients with NEN, its prognostic value is still under discussion.
View Article and Find Full Text PDFLow-dose quinine targets KCNH6 to potentiate glucose-induced insulin secretion.
J Mol Cell Biol
January 2025
Department of Endocrinology, Beijing Diabetes Institute, Beijing Key Laboratory of Diabetes Research and Care, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
Insulin secretion is mainly regulated by two electrophysiological events, depolarization initiated by the closure of ATP-sensitive K+ (KATP) channels and repolarization mediated by K+ efflux. Quinine, a natural component commonly used for the treatment of malaria, has been reported to directly stimulate insulin release and lead to hypoglycemia in patients during treatment through inhibiting KATP channels. In this study, we verified the insulinotropic effect of quinine on the isolated mouse pancreatic islets.
View Article and Find Full Text PDFCase report: Resolution of VIPoma-related symptoms with peptide receptor radionuclide therapy.
Front Oncol
January 2025
Department of Nuclear Medicine, Mount Sinai Hospital at Icahn School of Medicine, New York, NY, United States.
Peptide receptor radionuclide therapy (PRRT) is used for the management of neuroendocrine tumors (NETs) not responsive to somatostatin analogs. In this case series, we report two patients with pancreatic vasoactive intestinal peptide (VIP)-secreting NETs (VIPomas) not responsive to any other therapies who achieved symptomatic control and a significant decrease in serum VIP levels with PRRT during their hospital stay. Two patients with VIPomas were admitted to the hospital with multiple prior hospital admissions after going through multiple lines of therapy.
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