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We report a case of a patient observed in emergency condition for recurrent episodes of massive obscure gastrointestinal bleeding that required surgical control. At laparotomy we found an ileal mass with the characteristics of a gastrointestinal stromal tumor (GIST) at histopathological analysis. GISTs should always be considered as a possible cause of obscure gastrointestinal bleeding, although they are often difficult to diagnose preoperatively. Laparotomy is sometimes the only way to obtain a diagnosis. Starting from this case, we reviewed the literature about GISTs, focusing our attention on their diagnosis and the possible surgical and nonsurgical therapies.
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http://dx.doi.org/10.1177/030089160909500630 | DOI Listing |
Exp Cell Res
September 2025
Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Gastrointestinal Cancer Center, Peking University Cancer Hospital and Institute, Beijing, China. Electronic address:
Background: Enteric glial cells (EGCs) have been implicated in colorectal cancer (CRC) progression. This study aimed to develop and validate a prognostic model integrating EGC- and CRC-associated gene expression to predict patient survival, recurrence, metastasis, and therapy response.
Methods: Bulk and single-cell RNA sequencing data were analyzed, and a machine learning-based model was constructed using the RSF random forest algorithm.
Cancer
September 2025
Department of Medical Oncology, Centre Léon Bérard, Lyon, France.
Background: Immune checkpoint inhibitors (ICIs) in unselected sarcomas yield limited response rates and tumor control. Long-term responders have however been reported, suggesting a critical challenge in refining patient selection, by identifying reliable predictive factors for response.
Methods: The authors conducted a multicenter, retrospective study of patients with advanced sarcomas treated with ICIs in six French reference sarcoma centers.
Front Oncol
August 2025
Department of Medical Oncology, Mohammed VI University Hospital, Oujda, Morocco.
Non-Gastrointestinal Stromal Tumors (Non-GIST) Soft Tissue Sarcomas (STS) are highly aggressive and challenging diseases with poor prognosis and limited therapeutic options. Molecular profiling is urgently required to gain a deeper understanding of STS pathogenesis and to identify a comprehensive landscape of genomic alterations in order to develop effective targeted therapies. The mitogen-activated protein kinase (MAPK) signaling pathway is a key molecular mechanism involved in sarcoma development.
View Article and Find Full Text PDFChin Med J (Engl)
September 2025
State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Xi'an, Shaanxi 710032, China.
The success of chimeric antigen receptor T (CAR-T) cells therapy for hematologic malignancies has sparked interest in potential applications for solid tumors. However, unlike the homogeneous, dynamic, and nutrient-rich hematologic environment, CAR-T cells must overcome the complex tumor microenvironment. Ensuring efficient contact with tumor cells remains a primary challenge to enhance the efficacy of CAR-T cell therapy.
View Article and Find Full Text PDFMol Cancer Ther
September 2025
Novelty Nobility, Seongnam-si, Korea (South), Republic of.
Overexpression and gain-of-function mutations of c-Kit have been implicated in cancers including gastrointestinal stromal tumors (GIST), small cell lung cancer (SCLC), acute myeloid leukemia, and systematic mastocytosis. In clinics, small molecule c-Kit inhibitors often result in secondary c-Kit mutations or are ineffective despite c-Kit overexpression. We developed NN3201, a novel c-Kit targeting antibody-drug conjugate (ADC), via rational design to evaluate its anticancer activity in c-Kit-positive tumors, and preclinical pharmacologic profiles.
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