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Id-1: regulator of EGFR and VEGF and potential target for colorectal cancer therapy
Ibrahim Meteoglu1, Nezih Meydan, Muhan Erkus
1Adnan Menderes University, Medical Faculty, Department of Pathology, 09100-Aydin/Turkey. imete69@hotmail.com
Background:
The helix-loop-helix transcription factor Id-1 (an inhibitor of differentiation and DNA binding) plays a role in development and progression of many tumours. Id-1 is known to exert its effects on the epidermal growth factor receptor (EGFR) and the vascular endothelial growth factor (VEGF). The aim of this study was to reveal whether there was a relationship between Id-1 and EGFR and VEGF in colorectal carcinoma.
Methods:
Tumour and non-tumour tissue specimens from 46 cases of colorectal carcinoma were exposed to immunohistochemical staining for Id-1, EGFR and VEGF. The relationship between the degree of staining and tumour grade, tumour stage and all tumour markers was investigated.
Results:
Tumour cells showed positive staining for Id-1 in 43 cases (93.5%), for EGFR in 41 cases (89%) and for VEGF in 42 cases (91%). There was a significant relation between the tumour grade and the degree of staining for Id-1, EGFR and VEGF. The relation between the tumour stage and the degree of staining for Id-1, EGFR and VEGF was also significant. There was a significant relation between Id-1 expression and EGFR and VEGF expressions. Non-tumoural tissue specimens were not stained with Id-1 and EGFR antibodies in any of the cases, but stained with VEGF antibody in 3 cases.
Conclusion:
This study revealed that Id-1, EGFR and VEGF took part in development and progression of colorectal carcinomas and that Id-1 was associated with regulations of EGFR and VEGF. The results of this study support the idea that not only EGFR and VEGF but also Id-1 could be new targets in cancer treatment.
Insights
In colorectal carcinoma, Id-1, EGFR, and VEGF are linked to tumor progression. Id-1 expression correlates with EGFR and VEGF, suggesting they are potential therapeutic targets.
Area of Science:
- Oncology
- Molecular Biology
Background:
- The helix-loop-helix transcription factor Id-1 influences tumor development and progression.
- Id-1 is known to interact with epidermal growth factor receptor (EGFR) and vascular endothelial growth factor (VEGF).
Purpose of the Study:
- To investigate the relationship between Id-1, EGFR, and VEGF in colorectal carcinoma.
- To determine if Id-1 expression correlates with tumor grade and stage.
Main Methods:
- Immunohistochemical staining was performed on 46 colorectal carcinoma tissue specimens for Id-1, EGFR, and VEGF.
- The correlation between staining intensity and tumor grade, stage, and markers was analyzed.
Main Results:
- High positive staining for Id-1 (93.5%), EGFR (89%), and VEGF (91%) was observed in tumor cells.
- Significant correlations were found between tumor grade and stage with Id-1, EGFR, and VEGF staining.
- Id-1 expression was significantly associated with EGFR and VEGF expression.
Conclusions:
- Id-1, EGFR, and VEGF are involved in the development and progression of colorectal cancer.
- Id-1 is associated with the regulation of EGFR and VEGF in colorectal carcinoma.
- Id-1, in addition to EGFR and VEGF, represents a potential therapeutic target for colorectal cancer treatment.
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