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Genetic and Epigenetic Alterations in Parathyroid Neoplasms
Seyed Amir Miratashi Yazdi1, Elham Nazar2
1Department of General Surgery, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Iranian Journal of Pathology
|December 19, 2022
Summary
Parathyroid carcinoma (PC) management is complex. Lack of parafibromin expression, a marker for HRPT2 mutations, aids diagnosis and prognosis, suggesting targeted therapies for PC.
Area of Science:
- Endocrinology
- Oncology
- Molecular Biology
Background:
- The precise causes of parathyroid carcinoma (PC) remain unknown.
- Established associations link PC to inherited syndromes and specific genetic mutations.
- Managing PC presents significant clinical challenges due to increasing molecular complexity with tumor aggressiveness.
Purpose of the Study:
- To highlight the diagnostic and prognostic significance of parafibromin expression and HRPT2 mutations in parathyroid carcinoma.
- To underscore the role of epigenetic alterations in parathyroid tumorigenesis.
- To propose the consideration of adjuvant genetic and epigenetic targeted therapies for PC treatment.
Main Methods:
- Immunohistochemistry staining for parafibromin.
- HRPT2 mutation analysis.
- Review of established knowledge on epigenetic alterations in parathyroid tumorigenesis.
Main Results:
- Lack of parafibromin expression on immunohistochemistry, alongside HRPT2 mutations, is crucial for differentiating parathyroid carcinoma from adenoma.
- Parafibromin deficiency is a validated diagnostic, prognostic, and predictive marker for parathyroid carcinoma.
- Epigenetic alterations, including DNA methylation and chromatin structure modifications, are implicated in parathyroid tumor development.
Conclusions:
- Parafibromin deficiency serves as a key marker in parathyroid carcinoma diagnosis and management.
- Epigenetic modifications play a significant role in the development of parathyroid tumors.
- Adjuvant genetic and epigenetic targeted therapies represent a promising avenue for treating patients with parathyroid carcinoma.
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