Related Experiment Video
Updated: Sep 28, 2025

08:25
Identification of Circular RNAs using RNA Sequencing
Published on: November 14, 2019
12.4K
Circular RNAs and thyroid cancer: Closed molecules, open possibilities
Boris M Shifman1, Nadezhda M Platonova1, Evgeny V Vasilyev1
1Endocrinology Research Centre, Moscow, Russia.
Critical Reviews in Oncology/Hematology
|March 28, 2022
Summary
Circular RNAs show promise for diagnosing thyroid cancer, offering a potential solution to the limitations of fine-needle aspiration biopsy. Further research into these molecules could improve diagnostic accuracy and treatment strategies for thyroid neoplasms.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Thyroid neoplasms are common, with diagnosis often relying on fine-needle aspiration biopsy (FNAB).
- FNAB cytology has limitations, particularly in indeterminate cases (Bethesda system), leading to potential misdiagnosis and unnecessary surgeries.
- Circular RNAs (circRNAs) are emerging as key players in thyroid oncogenesis.
Purpose of the Study:
- To review current data on the association between circRNAs and thyroid cancer.
- To explore the potential of circRNAs as diagnostic biomarkers for thyroid neoplasms.
- To discuss how circRNA expression analysis can improve thyroid cancer diagnosis and treatment.
Main Methods:
- Literature review of studies investigating circRNAs in thyroid cancer.
- Analysis of circRNA expression patterns in thyroid tissues, blood, and exosomes.
- Evaluation of circRNAs as potential diagnostic and prognostic markers.
Main Results:
- Altered expression of various circRNAs is observed in thyroid cancer.
- circRNAs show potential as biomarkers in tissue, blood, and exosomes for detecting thyroid cancer.
- Specific circRNA expression profiles may correlate with clinicopathological features of thyroid cancer.
Conclusions:
- circRNAs represent a novel class of biomarkers for thyroid cancer diagnosis.
- Assessing circRNA expression could enhance the accuracy of diagnosing indeterminate thyroid nodules.
- circRNA-based approaches may lead to more precise treatment decisions for thyroid cancer patients.
Related Concept Videos
Rous Sarcoma Virus (RSV) and Cancer
5.5K
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
5.5K
The Nucleolus
9.3K
The nucleolus is the most prominent substructure of the nucleus. When it was first discovered, it was considered to be an isolated organelle that forms fibrils and granules. In 1931, the relationship between the nucleolus and chromosomes was first described by Heitz. He observed that the appearance and size of nucleolus varies depending on the stage of the cell cycle. He also noticed constricted regions on different chromosomes clustered together at definite cell cycle stages. These regions,...
9.3K
The Ras Gene
6.5K
The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
Ras is a...
Ras is a...
6.5K
lncRNA - Long Non-coding RNAs
9.0K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
9.0K
Synthesis and Regulation of Thyroid Hormones
5.3K
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...
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...
5.3K
mTOR Signaling and Cancer Progression
3.9K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.9K

