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Published on: August 23, 2019
Micro-RNAs in thyroid neoplasms: molecular, diagnostic and therapeutic implications
1Department of Pathology, University of Massachusetts Memorial Medical Center, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA. ashraf.khan@umassmemorial.org
Abstract:
Micro-RNAs (miRNAs) belong to a class of small non-coding messenger RNA species that have emerged as potent regulators of a variety of biological processes including oncogenesis. They serve as master regulators with a single miRNA capable of regulating as many as 100 different target genes. Thyroid carcinomas encompass a wide spectrum ranging from well-differentiated thyroid carcinomas to poorly differentiated and anaplastic carcinoma. Currently, a considerable degree of interobserver variability exists in the morphological diagnosis of certain types of thyroid carcinomas especially the follicular pattern neoplasm. The prediction of progression of these differentiated carcinoma to more aggressive forms like poorly differentiated and anaplastic types is of considerable interest to physicians and pathologists for determining prognosis and making therapeutic decisions. Several investigators have proposed a more cohesive approach to thyroid cancer diagnosis incorporating molecular and proteomics based tools in addition to the conventional morphological diagnosis. In this context, miRNAs serve as an important diagnostic tool, and several studies have demonstrated their utility as class identifiers especially in the context of follicular thyroid carcinoma, papillary thyroid carcinoma and anaplastic thyroid carcinoma. Larger studies and/or meta-analyses could further delineate their role in predicting cancer progression and prognosis. In the same vein, miRNAs and their target genes could be targeted for novel therapeutics in the future.
Insights
Micro-RNAs (miRNAs) are key regulators in cancer. Studies show miRNAs can help diagnose thyroid carcinomas and predict their progression, offering future therapeutic targets.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Micro-RNAs (miRNAs) are small non-coding RNAs regulating gene expression, crucial in biological processes like oncogenesis.
- Thyroid carcinomas present a diagnostic challenge due to morphological variability, particularly in follicular pattern neoplasms.
- Predicting the progression of differentiated thyroid carcinomas to aggressive forms is vital for patient prognosis and treatment.
Purpose of the Study:
- To explore the role of miRNAs as diagnostic and prognostic markers in thyroid carcinomas.
- To evaluate the potential of integrating miRNA analysis with conventional diagnostics for improved thyroid cancer management.
- To identify miRNAs as potential therapeutic targets for future thyroid cancer treatments.
Main Methods:
- Review of existing studies on miRNA expression in various thyroid carcinoma subtypes.
- Analysis of miRNA utility in differentiating follicular thyroid carcinoma, papillary thyroid carcinoma, and anaplastic thyroid carcinoma.
- Exploration of miRNA's role in predicting cancer progression and prognosis.
Main Results:
- miRNAs demonstrate significant potential as class identifiers for different thyroid carcinoma types.
- Evidence suggests miRNAs can aid in distinguishing between well-differentiated, poorly differentiated, and anaplastic thyroid carcinomas.
- Further large-scale studies and meta-analyses are needed to confirm miRNA's role in predicting cancer progression and prognosis.
Conclusions:
- miRNAs are valuable molecular tools for enhancing thyroid cancer diagnosis and classification.
- miRNA profiling can potentially improve the prediction of thyroid carcinoma progression and patient outcomes.
- Targeting miRNAs and their pathways represents a promising avenue for novel thyroid cancer therapeutics.
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