TY - JOUR TI - Investigation of CD40 -1C>T Genetic Variant and sCD40 Levels in Colorectal Cancer AB - Introduction: Functional studies have shown that cancer cells inactivate CD40-CD40L costimulators, which contribute to immune escape by inhibiting CD40L expression. CD40 -1C>T (rs1883832) is a 5′ UTR variant and may cause changes in protein level or function in the posttranslational process. In this article, we aimed to determine the importance of CD40 - 1C>T variant in terms of histopathological criteria and its effect on sCD40 levels in patients with CRC (colorectal cancer). Methods: In peripheral blood samples of ninety-three CRC and one hundred sixty-three controls, sCD40 level was detected by ELISA, and CD40-1C>T variant was detected by PCR-RFLP. Results: 1.48 times higher sCD40 level was found in CRC with CT compared to those with CC (p=0.007). The frequency of CT and TT genotypes was found to be higher in early tumor stage than in advanced tumor stage (p=0.041). It was observed that the frequency of CT genotype was higher in patients with distant organ metastases compared to those without. (p=0.02). Dsicussion and Conclusion: We do not think that the CD40-1C>T variant is an important part of CRC initiation. On the other hand, our findings in favor of metastasis suggest that CD40 is a factor that may be effective in the progression stages. AU - arıkan, soykan AU - DEMİRKOL, ŞEYDA AU - Horozoğlu, Cem AU - HAKAN, Mehmet Tolgahan AU - KÜÇÜKHÜSEYİN, Özlem AU - SÖNMEZ, Dilara AU - KARADAĞ, Hazal AU - Yaylim, Ilhan AU - Yılmaz, Ümit DO - 10.5505/ktd.2022.62343 PY - 2022 JO - Kocaeli Tıp Dergisi VL - 11 IS - 2 SN - 2147-0758 SP - 67 EP - 73 DB - TRDizin UR - http://search/yayin/detay/1130022 ER -