Related Experiment Video
Updated: Jan 2, 2026
Reconstruct Human Retinoblastoma In Vitro
Published on: October 11, 2022
Molecular pathology of retinoblastoma
Mallikarjuna Kandalam1, Moutushy Mitra, Krishnakumar Subramanian
1Department of Ocular Pathology, Vision Research Foundation, Sankara Nethralaya, Chennai, India.
Abstract:
Retinoblastoma (RB) is an embryonic neoplasm of retinal origin. For many years, scientists have sought the fundamental origins of tumorigenesis, with the ultimate hope of discovering a cure. Indeed, these efforts have led to a significant understanding that multiple molecular and genetic aberrations, such as uncontrolled proliferation and the inhibition of apoptosis that contribute to the canonical characteristics of tumor biology. Despite these advances, a thorough understanding, such as the precise cells, which are the targets of neoplastic transformation, especially in solid tumors, is currently lacking. The focus of this review is to emphasize the molecular defects involved in the RB tumor progression and mechanisms associated with inhibition of tumor cell apoptotic processes. This review also discusses the importance of target molecules characterization and their potential therapeutic or prognostic use in RB disease.
Insights
Retinoblastoma (RB) is a rare eye cancer. This review highlights molecular defects driving RB tumor growth and survival, emphasizing potential therapeutic targets for this childhood cancer.
Area of Science:
- Ophthalmology
- Oncology
- Molecular Biology
Background:
- Retinoblastoma (RB) is an embryonic neoplasm originating in the retina.
- Tumorigenesis involves molecular and genetic aberrations, including uncontrolled proliferation and apoptosis inhibition.
- Precise target cells for neoplastic transformation in solid tumors remain incompletely understood.
Purpose of the Study:
- To review molecular defects in RB tumor progression.
- To examine mechanisms inhibiting tumor cell apoptosis.
- To discuss the therapeutic and prognostic potential of target molecule characterization in RB.
Main Methods:
- Literature review focusing on molecular and genetic aspects of retinoblastoma.
- Analysis of studies investigating apoptosis inhibition in tumor cells.
- Evaluation of research on target molecule identification and clinical utility.
Main Results:
- Multiple molecular and genetic aberrations contribute to RB characteristics.
- Mechanisms inhibiting apoptosis are crucial for tumor cell survival in RB.
- Specific molecular targets hold promise for RB therapy and prognosis.
Conclusions:
- Understanding molecular defects in RB is key to developing effective treatments.
- Targeting apoptosis inhibition pathways may offer therapeutic strategies.
- Characterizing molecular targets is essential for advancing RB disease management.
Related Concept Videos
01:20The 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,...
02:07Tumor Progression
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
03:03mTOR Signaling and Cancer Progression
The mTOR pathway or the...
01:23Negative Regulator Molecules