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Therapeutic targeting of the pituitary tumor microenvironment

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Summary: This review evaluates the biological processes underlying malignant transformation and their relevance to the development of pituitary adenomas. It addresses various processes such as genome instability, epigenetic reprogramming, angiogenesis, proliferative signals, immune evasion, and inflammation in relation to pituitary tumors. Additionally, it discusses the existence of oncogene-induced senescence in these tumors. Understanding these processes can provide insights into the resistance of pituitary tumors to malignant transformation and contribute to the development of novel anticancer treatments.

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Complete Response of a Patient With a Mismatch Repair Deficient Aggressive Pituitary Adenoma to Immune Checkpoint Inhibitor Therapy: A Case Report

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Summary: This study evaluated the real-life efficacy of immune-checkpoint inhibitors (ICIs) in treating pituitary carcinomas (PCs) and aggressive pituitary tumors (APTs). The efficacy of ICIs was found to be lower than previously reported, and predictive factors of response were lacking.

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Summary: This study describes the characteristics and treatment outcomes of aggressive pituitary tumors (APT) and pituitary carcinomas (PC). Temozolomide is the first-line chemotherapy, but other therapies are also emerging. Predicting treatment response remains challenging with current biomarkers.

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Summary: Bevacizumab shows some effect in treating aggressive pituitary adenomas, but the small sample size, short treatment duration, and only one patient showing clinical benefit do not allow for a general statement on its effectiveness. Further studies are needed to evaluate its potential in therapy resistant aggressive pituitary tumors.

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