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Identification of differentially-expressed of Olfactomedin-related proteins 4 and COL11A1 in Iranian patients with intestinal gastric cancer

Asma Dabiri, Kaveh Baghaei, Mehrdad Hashemi, Shokoofeh Sadravi, Habib Malekpour, Manijeh Habibi, Farhad Lahmi




Aim: Due to limited information on these genes and to a better understanding of common biomarkers associated with cancer of the digestive tract routes, we aim to evaluated expression level of Olfactomedin4 (OLFM4) and (pro)collagen11A1/COL11A1 genes in people with gastric cancer in Iran.

Background: Gastric cancer is one of the main cause of cancer death. The early prognosis of gastric cancer is still a matter of debate. Human olfactomedin4 (OLFM4) is a glycoprotein that generally known as the antiapoptotic protein. (pro) collagen11A1/COL11A1 codes for the alpha-1 subunit of type XI collagen which exists in extracellular minor fibrillar collagen. In most cases, OLFM4 and COL11A1 are found to be up-regulated in many types of human cancers including gastric cancer.  

Methods: 35 tissue samples were collected including 25 sample of patients with intestinal gastric cancer and 10 healthy controls. Expression level of OLFM4 and COL11A1 genes identified by using RGQ software. For analysis of real time-PCR products, Rotor-Gene Q series software was used.

Results: Our finding showed that expression level of OLFM4 was significantly upregulated and COL11A1 did not show any significant difference in expression level in Iranian population with gastric cancer samples compared with those in normal samples.

Conclusion: The results recommend that expression profiling of OLFM4 can be used for diagnosis of gastric cancer, and OLFM4 seems to be used as a biomarker for the diagnosis of gastric cancer. Regarding to our result, unlike some studies, COL11A1 did not show any significant difference between normal and tumor tissue which could explain ethological role in distribution of gastric cancer


Gastric Cancer, OLFM4, Col11A1


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DOI: https://doi.org/10.22037/ghfbb.v0i0.1270