Related Experiment Video
Updated: Jun 9, 2025
09:15
Monitoring Protein-RNA Interaction Dynamics In Vivo at High Temporal Resolution Using χCRAC
Published on: May 9, 2020
5.0K
RNF2 promotes chondrosarcoma progression by regulating ubiquitination and degradation of CBX7
Yue Wu1, Zheng Huang2, Ping Luo3
1Department of Orthopedics, Beijing Chaoyang Hospital, No.8 Gongti South Rd, Chaoyang District, Beijing, 100020, China.
Cancer & Metabolism
|October 26, 2024
Summary
RNF2 promotes chondrosarcoma (CHS) progression by increasing CBX7 degradation through ubiquitination. Targeting RNF2 may offer new therapeutic strategies for advanced CHS.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Chondrosarcoma (CHS) is a challenging bone cancer with limited treatment options for advanced stages.
- Conventional therapies are often ineffective against CHS, necessitating the development of targeted molecular therapies.
Purpose of the Study:
- To investigate the role of RNF2 and CBX7 in the progression of chondrosarcoma.
- To elucidate the molecular mechanism by which RNF2 influences CHS and to explore its potential as a therapeutic target.
Main Methods:
- RNF2 and CBX7 expression levels were analyzed in CHS cells and tissues.
- In vitro experiments involved modulating RNF2/CBX7 expression to assess effects on cell proliferation, apoptosis, migration, and angiogenesis.
- In vivo studies utilized mouse models to evaluate the impact of RNF2 on tumor growth and metastasis.
Main Results:
- High RNF2 expression was observed in CHS.
- RNF2 knockdown inhibited CHS cell proliferation, migration, and angiogenesis, while promoting apoptosis.
- RNF2 knockdown led to increased CBX7 protein levels and reduced its ubiquitination, indicating RNF2 promotes CBX7 degradation.
- In vivo, RNF2 inhibition significantly restricted tumor growth and metastasis in mice.
Conclusions:
- RNF2 plays a crucial role in promoting chondrosarcoma progression.
- RNF2 facilitates CHS advancement by enhancing CBX7 degradation via the ubiquitination pathway.
- Targeting RNF2 presents a promising strategy for developing novel molecularly targeted therapies for chondrosarcoma.
Related Concept Videos
02:26NF-κB-dependent Signaling Pathway
7.2K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
7.2K
01:03Rous Sarcoma Virus (RSV) and Cancer
5.0K
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...
5.0K
01:20The Retinoblastoma Gene
4.1K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
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,...
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,...
4.1K
02:23Abnormal Proliferation
4.5K
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...
4.5K
01:45Regulation of Nuclear Protein Sorting
2.4K
Nuclear protein sorting regulates nucleus composition and gene expression, crucial for determining the fate of a eukaryotic cell. Hence, the entry and exit of molecules across the nuclear envelope is a tightly controlled process. Nuclear protein sorting can be inhibited by one of the following ways: 1) masking cargo signal sequences, 2) modifying the nuclear receptor's affinity for cargo, 3) controlling the nuclear pore size, 4) retaining the cargo during its transit to the cytosol or the...
2.4K
02:54Canonical Wnt Signaling Pathway
8.7K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
8.7K