This is Your Thyroid on Drugs: Targetable Mutations and Fusions in Thyroid Carcinoma

Ying-Hsia Chu1

  • 1Department of Pathology, Chang Gung Memorial Hospital and Chang Gung University, No. 5, Fuxing Street, Guishan District, Taoyuan City 333, Taiwan.

Insights

This review covers molecular drivers of thyroid cancer, focusing on actionable genetic alterations in the MAPK and PI3K pathways. Advances in treatment target identification offer new therapeutic options for unresectable thyroid carcinomas.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Thyroid carcinomas are driven by specific molecular pathways, notably the MAPK and PI3K pathways.
  • Genetic alterations, including point mutations and gene rearrangements, are key drivers in thyroid carcinogenesis.
  • Understanding these alterations is crucial for developing targeted therapies.

Purpose of the Study:

  • To review the molecular pathogenesis of thyroid carcinomas.
  • To emphasize therapeutically actionable genetic alterations.
  • To discuss laboratory techniques for identifying therapeutic targets.

Main Methods:

  • Literature review of molecular pathogenesis in thyroid cancer.
  • Analysis of genetic alterations in MAPK and PI3K pathways.
  • Discussion of therapeutic strategies and target identification methods.

Main Results:

  • Key genetic alterations in receptor tyrosine kinases and pathway effectors drive thyroid cancer.
  • Significant progress has been made in treating unresectable thyroid cancer with targeted agents.
  • Evolving treatments demonstrate improved efficacy and resistance coverage.

Conclusions:

  • Targeted therapies based on molecular pathogenesis have transformed thyroid cancer treatment.
  • Continued research into genetic drivers and laboratory techniques is essential for further therapeutic advancements.
  • Personalized medicine approaches are critical for managing thyroid carcinomas.

Related Concept Videos

Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
7.8K
Combination Therapies and Personalized Medicine02:50

Combination Therapies and Personalized Medicine

Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
5.0K
Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
7.6K
Synthesis and Regulation of Thyroid Hormones01:20

Synthesis and Regulation of Thyroid Hormones

Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
4.8K
Cancer-Critical Genes I: Proto-oncogenes01:33

Cancer-Critical Genes I: Proto-oncogenes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
9.1K
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.6K