Expression and Function of Vasopressin Receptors in the HT-29 Cell Line

Vasopressin receptors can have different effects on tumorigenesis. The in vitro usage of agonists and antagonists of these receptors can also have a potential impact on developing adjuvant treatment options. Therefore, we aimed to demonstrate the expression and function of vasopressin receptors in the HT- 29 cell line, which is one of the cell lines frequently used in colorectal cancer studies. Colorectal cancer is one of the most prevalent cancer types worldwide. There are many risk factors for colorectal cancer, including unhealthy lifestyle and social environment, and early diagnosis can enhance the survival of patients. Main treatment strategies aim to slow down the progression of cancer, increase survival, and enhance the quality of life. Investigating the relationship between colorectal cancer and vasopressin receptors has been an interesting research area in terms of developing new treatment strategies lately.

For receptor expression and functional analysis, RT-PCR experiments and cAMP accumulation assay were performed.

The expression of V2R and V1aR was observed in HT-29 cells, and V2Rs demonstrated their function as cAMP responders after treatment with agonists and antagonists.

This is the first study to report that V2R and V1aR expressions were detected by RT-PCR, and the functionality of V2R was analyzed by cAMP accumulation assay after treating HT-29 cells with agonists and antagonists.

We hope that these results may contribute to colorectal cancer research and the development of novel therapeutic strategies targeting vasopressin receptor signaling pathways.