Tumour microenvironment and pituitary tumour behaviour.

Area of Science:

• Endocrinology
• Oncology
• Immunology

Background:

• The pituitary tumour microenvironment comprises non-tumoural cells (immune, stromal, endothelial) and signaling molecules.
• Recent research highlights pituitary tumour-infiltrating immune and stromal cells and related pathways.
• Pituitary is recognized as a target for adverse events from immune checkpoint regulators in cancer therapy.

Purpose of the Study:

• To elucidate the composition and function of the pituitary tumour microenvironment.
• To explore the influence of the microenvironment on pituitary tumourigenesis and behaviour.
• To identify potential therapeutic strategies targeting the pituitary tumour microenvironment.

Main Methods:

• Comprehensive review of recent literature on pituitary tumour microenvironment.
• Analysis of immune and stromal cell subpopulations within pituitary tumours.
• Investigation of immune- and microenvironment-related pathways.

Main Results:

• Detailed characterization of various pituitary tumour-infiltrating immune and stromal cell subpopulations.
• Identification of key immune- and microenvironment-related pathways influencing tumour growth.
• Recognition of pituitary as a site for immune checkpoint inhibitor-related adverse events.

Conclusions:

• Unravelling the pituitary tumour microenvironment enhances understanding of pituitary tumour biology.
• The microenvironment holds potential for developing novel diagnostic and management strategies.
• Targeting the pituitary tumour microenvironment may offer therapeutic advantages for aggressive or recurrent pituitary tumours.