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Pancreatic neuroendocrine tumors (pan-NETs) represent a highly heterogeneous and complex pathology, with therapeutic management and prognosis influenced by several biological and clinical characteristics. Chemotherapy, including regimens based on capecitabine and temozolomide (CAPTEM) or the combination of streptozotocin and 5-fluorouracil (STZ-5FU), is indicated for rapidly growing, symptomatic, or high-burden disease requiring swift cytoreduction. Historical studies provide scientific evidence for the STZ-5FU regimen, often retrospective and frequently analyzing small series. Despite these limitations, the efficacy of this treatment is well-established, and it is included in all guidelines as a therapeutic option. This systematic review aims to gather scientific evidence on using STZ-based chemotherapy to assess its real impact in managing well-differentiated metastatic or unresectable pan-NETs.
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http://dx.doi.org/10.1016/j.ctrv.2025.102899 | DOI Listing |
Can J Ophthalmol
September 2025
University of British Columbia, Department of Ophthalmology and Visual Sciences, Vancouver, BC, Canada.
Objective: To assess the effect of belzutifan, a first-in-class oral hypoxia-inducible factor 2α inhibitor, on retinal hemangioblastoma (RH) outcomes.
Subjects/methods: This is a single-centre retrospective cohort study of patients with confirmed von Hippel-Lindau syndrome (VHLS) and RH. Subjects were taking oral belzutifan for renal cell carcinoma, central nervous system hemangioblastoma, or pancreatic neuroendocrine tumours.
Chromogranin A (CgA), a neuroendocrine pro-hormone, undergoes proteolytic cleavage to yield bioactive peptides, notably catestatin (CST) and pancreastatin (PST), which exert opposing effects on metabolic and inflammatory processes. Using CgA and CST knockout (KO) mice, this study investigated their roles in pancreatic endocrine function, morphology, neurotransmitter dynamics, and systemic glucose homeostasis. CST deficiency induced insulin resistance, altered islet architecture, and heightened catecholamine levels, whereas CgA-KO mice lacking both CST and PST exhibited improved insulin sensitivity due to absence of PST.
View Article and Find Full Text PDFFront Med (Lausanne)
August 2025
Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
"Primary neuroendocrine breast carcinoma (NEBC) is an underdiagnosed subtype of breast cancer, which includes small cell (SCNEC) and large cell neuroendocrine carcinomas (LCNEC). Accurate diagnosis remains challenging given their low incidence; misclassification as invasive breast carcinoma of no special type (IBC-NST), invasive ductal carcinoma (IDC), or a metastatic neuroendocrine carcinoma may occur. Cases with any component of adenocarcinoma and well-differentiated neuroendocrine tumors were excluded.
View Article and Find Full Text PDFZhejiang Da Xue Xue Bao Yi Xue Ban
September 2025
Hepato-Biliary-Pancreas Surgery Section, Ningbo Medical Center Lihuili Hospital, Ningbo 315000, Zhejiang Province, China.
The clinical data of 10 patients with pathologically confirmed primary hepatic neuroendocrine neoplasms from Ningbo medical institutions between 2012 and 2024 were retrospectively analyzed. The cohort included 8 males and 2 females, with a median age of 63 years. None presented with carcinoid syndrome.
View Article and Find Full Text PDFCureus
August 2025
Surgery, Cleveland Clinic Indian River Hospital, Vero Beach, USA.
Pancreatic neuroendocrine tumors (PNETs) are rare pancreatic neoplasms that can be classified as functioning or non-functioning. Non-functioning PNETs are often asymptomatic and detected incidentally. We discuss the case of a 54-year-old female with a past medical history significant for Crohn's disease (CD) who underwent a CT enterography in 2022 for follow-up imaging.
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