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Updated: Jul 8, 2025

Reconstruct Human Retinoblastoma In Vitro
Published on: October 11, 2022
Emerging Role of Circular RNAs in the Pathogenesis of Retinoblastoma
Weizhen Wu1, Youjing Zhang1, Ming Yang1
1Department of Ophthalmology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
Abstract:
Retinoblastoma (Rb) accounts for 3% of all childhood cancers. It is the most common intraocular malignant tumor with a highly aggressive and metastatic phenotype. Gaining a more comprehensive understanding of the molecular mechanisms underlying the proliferation, metastasis, migration, invasive apoptosis, and autophagy processes associated with this cancer would facilitate the design of therapeutic modalities and the identification of novel tumor markers. Recent investigations have shown the contribution of circular RNAs (circRNAs) in the evolution of Rb. Several circRNAs, including circ_0000034, circ_0000527, circ_0075804, circ_0099198, circFAM158A, and circVAPA, promote the progression and metastasis of Rb. However, some circRNAs, such as circ_0001649, circMKLN1, and circTET1, play a tumor suppressive role. In this regard, circRNAs can regulate cancer-developing processes including cell proliferation, apoptosis, migration, invasion, and tumor growth. This review summarizes the functional roles of circRNAs in Rb and their potential clinical applications for diagnosis and prognosis, and provides a comprehensive understanding of the role of circRNAs in the pathophysiology of Rb.
Insights
Circular RNAs (circRNAs) are increasingly implicated in retinoblastoma (Rb) development. This review details how specific circRNAs can either promote or suppress Rb progression, offering insights into potential diagnostic and therapeutic strategies.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Retinoblastoma (Rb) is a common and aggressive childhood cancer originating in the eye.
- Understanding Rb's molecular mechanisms is crucial for developing effective treatments and biomarkers.
- Circular RNAs (circRNAs) have emerged as significant players in cancer development.
Purpose of the Study:
- To review the functional roles of circRNAs in retinoblastoma (Rb) pathogenesis.
- To explore the potential clinical applications of circRNAs in Rb diagnosis and prognosis.
- To provide a comprehensive understanding of circRNAs in Rb pathophysiology.
Main Methods:
- Literature review of studies investigating circRNAs in retinoblastoma.
- Analysis of identified circRNAs that promote or suppress Rb progression.
- Summary of current knowledge on circRNA involvement in Rb cellular processes.
Main Results:
- Several circRNAs (e.g., circ_0000034, circFAM158A) promote Rb progression and metastasis.
- Other circRNAs (e.g., circ_0001649, circMKLN1) exhibit tumor-suppressive roles in Rb.
- CircRNAs regulate key cancer processes including proliferation, apoptosis, migration, and invasion in Rb.
Conclusions:
- CircRNAs play diverse and critical roles in the development and progression of retinoblastoma.
- CircRNAs hold significant potential as diagnostic markers and therapeutic targets for Rb.
- Further research into circRNA functions can advance Rb treatment strategies.
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