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The Microenvironment of Pituitary Tumors—Biological and Therapeutic Implications

Abstract : The tumor microenvironment (TME) includes resident and infiltrative non-tumor cells, as well as blood and lymph vessels, extracellular matrix molecules, and numerous soluble factors, such as cytokines and chemokines. While the TME is now considered to be a prognostic tool and a therapeutic target for many cancers, little is known about its composition in pituitary tumors. This review summarizes our current knowledge of the TME within pituitary tumors and the strong interest in TME as a therapeutic target. While we cover the importance of angiogenesis and immune infiltrating cells, we also address the role of the elusive folliculostellate cells, the emerging literature on pituitary tumor-associated fibroblasts, and the contribution of extracellular matrix components in these tumors. The cases of human pituitary tumors treated with TME-targeting therapies are reviewed and emerging concepts of vascular normalization and combined therapies are presented. Together, this snapshot overview of the current literature pinpoints not only the underestimated role of TME components in pituitary tumor biology, but also the major promise it may offer for both prognosis and targeted therapeutics.
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Submitted on : Thursday, May 12, 2022 - 3:55:58 PM
Last modification on : Thursday, September 1, 2022 - 10:09:23 AM

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Mirela Diana Ilie, Alexandre Vasiljevic, Gérald Raverot, Philippe Bertolino. The Microenvironment of Pituitary Tumors—Biological and Therapeutic Implications. Cancers, MDPI, 2019, 11 (10), pp.1605. ⟨10.3390/cancers11101605⟩. ⟨hal-03666599⟩

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