The cytotoxic, apoptotic and oxidative effects of carbonic anhydrase IX inhibitor on colorectal cancer cells
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Colorectal cancer (CRC) is the third most common tumor, malignant and has developed one of the main reasons of cancer mortality. According to studies conducted recently; carbonic anhydrase 9 (CAIX) is an especially attractive target for cancer therapy, in part since it is limited way expressed in normal tissues on the other hand in a wide variety of solid neoplasia are overexpressed. The aim of this study was to appreciate the effects of CAIX inhibitor, namely novel synthesized sulfonamide derivative (H-4i) with high affinity for CAIX, in CAIX-positive human colorectal cancer cell (HT-29) and CAIX-negative human normal embryonic kidney cell line (HEK-293). For this reason, we planned to investigate apoptotic, cytotoxic and oxidative stress activity of H-4i on HT-29 and HEK-293 cell lines. Cell viability determined by WST-1 assay afterwards IC50 values, apoptosis and cell cycle induction measured by flow cytometric analysis, intracellular free radical induction performed by reactive oxygen species (ROS) analyses. The IC50 value of the sulfonamide derivative compound was found to be very low, especially in HT-29 cells, when compared to human normal cells. This research found that H-4i significantly increased cytotoxicity and ROS production, caused significant signs of apoptosis level. High level of ROS and apoptosis lead to arrest the cell cycle and reduce cell survival. The most obvious finding to emerge from the analysis that novel synthesized sulfonamide derivative H-4i is effective on HT-29 more than HEK-293. Therefore, novel derivative H-4i might be used as an anti-cancer potential compound on CRC.
KeywordsCarbonic Anhydrase-9 inhibitor Colorectal cancer Apoptosis Cytotoxicity And oxidative stress
This study was supported by the research fund of Yuzuncu Yil University and TUBITAK. Project No: TYL-2017-5559 and TUBITAK No: 115Z681.
Compliance with ethical standards
This article does not contain any studies with human participants or animals performed by any of the authors.
Conflict of interest
The authors declare that they have no conflict of interest.
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