Related Experiment Video
Updated: Jun 17, 2026
08:43
A Unified Methodological Framework for Vestibular Schwannoma Research
Published on: June 20, 2017
VEGF mRNA expression in jugulotympanic paraganglioma
1Department of ENT, Anhui provincial Hospital, Anhui Medical University, Hefei, Anhui, China.
European Journal of Cancer Care
|December 25, 2009
Summary
Vascular endothelial growth factor (VEGF) mRNA is significantly expressed in the cytoplasm of jugulotympanic paraganglioma tumors. This finding offers insights into the molecular basis of this rare tumor.
Area of Science:
- Oncology
- Molecular Biology
- Pathology
Background:
- Vascular Endothelial Growth Factor (VEGF) is crucial for blood vessel formation and permeability.
- Previous studies detected VEGF protein in jugulotympanic paraganglioma, but mRNA expression remained unconfirmed.
- Jugulotympanic paraganglioma is a rare tumor requiring further molecular investigation.
Purpose of the Study:
- To investigate the messenger RNA (mRNA) expression of VEGF in primary jugulotympanic paraganglioma.
- To determine the cellular localization of VEGF mRNA within the tumor tissue.
- To explore potential correlations between VEGF mRNA expression and tumor characteristics.
Main Methods:
- Analysis of six primary jugulotympanic paraganglioma tissue samples.
- Utilized in situ hybridization technique on wax-embedded specimens.
- Focused on detecting VEGF mRNA within tumor cells.
Main Results:
- Significant expression of VEGF mRNA was detected in the cytoplasm of jugulotympanic paraganglioma cells.
- VEGF mRNA expression was not observed in the cellular nucleus.
- A potential correlation between higher malignancy and stronger cytoplasmic VEGF mRNA expression was suggested, though not definitively established.
Conclusions:
- VEGF mRNA is demonstrably present in the cytoplasm of jugulotympanic paraganglioma.
- The findings support a role for VEGF in the pathogenesis of these tumors.
- Further research is needed to clarify the prognostic significance and clinical implications of VEGF mRNA expression in jugulotympanic paraganglioma.
Related Concept Videos
02:07Tumor Progression
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
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...
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...
02:07Tumor Progression
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
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...
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...
01:20The Retinoblastoma Gene
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,...
01:20The Retinoblastoma Gene
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,...
01:03Rous Sarcoma Virus (RSV) and Cancer
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...
01:03Rous Sarcoma Virus (RSV) and Cancer
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...