Related Experiment Video
Updated: Aug 16, 2025

Reconstruct Human Retinoblastoma In Vitro
Published on: October 11, 2022
Role of circular RNAs in retinoblastoma
Fei Li1, Yi-Ke Yin1, Ji-Tao Zhang1
1Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266021, China.
Insights
Circular RNAs (circRNAs) show promise for diagnosing and treating retinoblastoma, a childhood eye cancer. Some circRNAs promote cancer, while others inhibit it, offering new therapeutic targets.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Retinoblastoma (RB) is a common pediatric eye cancer requiring early diagnosis and treatment.
- Circular RNAs (circRNAs) are emerging as key regulators of cellular processes relevant to RB.
- Understanding circRNA roles is crucial for improving RB outcomes.
Purpose of the Study:
- To review the functional roles of circRNAs in retinoblastoma.
- To summarize the molecular mechanisms underlying circRNA regulation in RB.
- To highlight circRNAs as potential biomarkers and therapeutic targets for RB.
Main Methods:
- Literature review of recent studies on circRNAs in retinoblastoma.
- Analysis of identified circRNAs and their functions (oncogenic or tumor-suppressive).
- Synthesis of current knowledge on circRNA regulatory mechanisms in RB.
Main Results:
- Six circRNAs (e.g., circ-FAM158A, circ-DHDDS) act as oncogenic factors, promoting RB progression and metastasis.
- Several circRNAs (e.g., circ-TET1, circ-SHPRH) exhibit tumor-suppressive roles in RB.
- The precise regulatory mechanisms of circRNAs in RB are still under investigation.
Conclusions:
- CircRNAs play significant roles in retinoblastoma development and progression.
- Specific circRNAs can serve as potential diagnostic and prognostic biomarkers for RB.
- Targeting circRNAs offers novel therapeutic strategies for retinoblastoma treatment.
Abstract:
Retinoblastoma (RB), the most common malignant retinal tumor among children under 3 years old, is lethal if left untreated. Early diagnosis, together with timely and effective treatment, is important to improve retinoblastoma-related outcomes. Circular RNAs (circRNAs), a new class of non-coding RNAs with the capacity to regulate cellular activities, have great potential in retinoblastoma diagnosis and treatment. Recent studies have identified circular RNAs that regulate multiple cellular processes involved in retinoblastoma, including cell viability, proliferation, apoptosis, autophagy, migration, and invasion. Six circular RNAs (circ-FAM158A, circ-DHDDS, circ-E2F3, circ-TRHDE, circ-E2F5, and circ-RNF20) promote disease progression and metastasis in retinoblastoma and function as oncogenic factors. Other circular RNAs, such as circ-TET1, circ-SHPRH, circ-MKLN1, and circ-CUL2, play tumor suppressive roles in retinoblastoma. At present, the studies on the regulatory mechanism of circular RNAs in retinoblastoma are not very clear. The purpose of this review is to summarize recent studies on the functional roles and molecular mechanisms of circular RNAs in retinoblastoma and highlight novel strategies for retinoblastoma diagnosis, prognosis, and treatment.
Related Concept Videos
The Retinoblastoma Gene
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
Experimental RNAi
Negative Regulator Molecules
Rous Sarcoma Virus (RSV) and Cancer
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
MicroRNAs
piRNA - Piwi-interacting RNAs

