Molecular pathogenesis of parathyroid tumours

Area of Science:

• Endocrinology
• Oncology
• Genetics

Background:

• Primary hyperparathyroidism (pHPT) is a frequent endocrine disorder linked to parathyroid tumors, causing hypercalcemia.
• While most parathyroid tumors are benign (adenomas or hyperplasia), malignant neoplasms are rare.
• Genetic predisposition and molecular pathophysiology of pHPT are well-understood only for familial forms, representing <10% of cases; sporadic forms' pathophysiology remains largely unknown.

Purpose of the Study:

• To provide an overview of recent findings on the genetic causes of parathyroid tumors.
• To elucidate the molecular mechanisms underlying both benign and malignant parathyroid tumors.
• To cover genetic and molecular aspects in both sporadic and familial parathyroid tumor presentations.

Main Methods:

• Literature review of recent acquisitions on parathyroid tumor genetics.
• Analysis of molecular mechanisms in benign and malignant parathyroid neoplasms.
• Synthesis of data concerning sporadic and familial forms of parathyroid tumors.

Main Results:

• Parathyroid tumors are predominantly benign, with malignant forms being exceptionally rare.
• Genetic causes and molecular mechanisms for familial syndromic forms of parathyroid tumors are partially understood.
• The pathophysiology of sporadic parathyroid tumors is largely unelucidated, with potential roles for epigenetic mechanisms and private genes.

Conclusions:

• Further research is needed to fully understand the genetic basis and molecular drivers of sporadic parathyroid tumors.
• Elucidating the pathophysiology of all parathyroid tumor types is crucial for improving diagnosis and treatment.
• This overview highlights current knowledge gaps and future research directions in parathyroid tumor genetics and molecular biology.