Suspensions prepared from thymuses of TL(+) mice contain a majority of TL(+) cells and a minority of TL(-) cells. The graft versus host reactivity of the TL(-) population is much greater than that of the whole population, as judged by the numbers of cells required to give splenic enlargements in Simonsen's assay. It is proposed that the TL(-) thymocyte represents a stage in the differentiation of TL(+) thymocytes into immunocompetent lymphocytes.
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http://dx.doi.org/10.1126/science.172.3989.1258 | DOI Listing |
Sci Transl Med
January 2025
Department of Surgery, UT Southwestern Medical Center, Dallas, TX 75390, USA.
Pancreatic ductal adenocarcinoma (PDAC) driven by the mutation presents a formidable health challenge because of limited treatment options. MRTX1133 is a highly selective and first-in-class KRAS-G12D inhibitor under clinical development. Here, we report that the advanced glycosylation end product-specific receptor (AGER) plays a key role in mediating MRTX1133 resistance in PDAC cells.
View Article and Find Full Text PDFMol Ther Oncol
March 2025
Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain.
Oncolytic adenoviral therapy is a promising approach for pancreatic cancer treatment. However, the limited capacity of murine cells to produce infectious viral progeny precludes the full evaluation of the virotherapy in a suitable immunocompetent mouse model. Here, we report that the murine KPC-I cell line, established from pancreatic tumors developed in ; ; mice, is susceptible to adenoviral replication and generates a progeny of infective virions similar to those from infected human A549 cells.
View Article and Find Full Text PDFOncoimmunology
December 2025
Cancer Signaling and Microenvironment Program, Fox Chase Cancer Center, Philadelphia, PA, USA.
In an immunocompetent mouse model of multifocal, metachronous HR mammary carcinogenesis, we have recently demonstrated that a superior control of primary neoplastic lesions by focal radiotherapy does not necessarily translate into improved oncosuppression at non-irradiated (pre)malignant tissues. These data point to a link between local tumor control by radiotherapy and systemic oncogenesis that remains to be fully understood.
View Article and Find Full Text PDFBackground: Targeting glutamine metabolism has emerged as a promising strategy in cancer therapy. However, several barriers, such as anti-tumor efficacy, drug toxicity, and safety, remain to be overcome to achieve clinical utility. Prior preclinical studies had generated encouraging data showing promises of cancer metabolism targeting drugs, although most were performed on immune-deficient murine models.
View Article and Find Full Text PDFFront Immunol
January 2025
Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.
Background: Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal forms of cancer, and despite low incidence rates, it remains the sixth leading cause of cancer related deaths worldwide. Immunotherapy, which aims to enhance the immune system's ability to recognize and eliminate cancer cells, has emerged as a promising approach in the battle against PDAC. PARP7, a mono-ADP-ribosyltransferase, is a negative regulator of the type I interferon (IFN-I) pathway and has been reported to reduce anti-tumour immunity.
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