Evaluation of hypoxia inducible factor-1 alpha gene expression in colorectal cancer stages of Iranian patients
| Autor: | Seyed Ehsan Enderami, Reyhaneh Nassiri Mansour, Mojtaba Fathi, Shahla Moahammad Ganji, Koorosh Fooladsaz, Abdolreza Ardeshirylajimi |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Male Colorectal cancer Gene Expression Cancer and diagnosis Biology Iran Bioinformatics medicine.disease_cause lcsh:RC254-282 Polymerase Chain Reaction Metastasis 03 medical and health sciences Hypoxia-Inducible Factor 1-Alpha Gene expression medicine Carcinoma Biomarkers Tumor Humans Radiology Nuclear Medicine and imaging hypoxia inducible factor-1 alpha gene Neoplasm Staging colorectal Messenger RNA General Medicine medicine.disease lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens Hypoxia-Inducible Factor 1 alpha Subunit Immunohistochemistry 030104 developmental biology Oncology Cancer research Female Carcinogenesis Colorectal Neoplasms |
| Zdroj: | Journal of Cancer Research and Therapeutics, Vol 12, Iss 4, Pp 1313-1317 (2016) |
| ISSN: | 1998-4138 |
| Popis: | Aim of Study: Colorectal cancer (CRC) is the fourth most prevalent cancer globally. Several factors have roles in cancer establishment. One of the most important factors is hypoxia that induces hypoxia inducible factor-1 (HIF-1). The HIF-1 alpha overexpressed in hypoxia conditions and plays a pivotal role in carcinogenesis features. In this study, we aimed to examine the efficiency of HIF-1 alpha gene expression at mRNA and protein's level for CRC diagnosing and staging. Materials and Methods: In this study, the cases included into 75 cancer specimens in different stages (Group 2 = Stage 1, Group 3 = Stage 2, and Group 4 = Stage 3, 4) and ten normal specimens as control (Group 1). Real-time reverse transcription-polymerase chain reaction and immunohistochemistry (IHC) were performed for measuring gene expression at RNA and protein's level, respectively. The raw data were analyzed in the SPSS20 software. Results: HIF-1 alpha gene expression rate (2−ΔΔCT) and ΔCT values were significantly higher increased in Group 4 in compare to control (P < 0.001). Other cancer groups (2 and 3) had greater ΔCT values than control, but it was not statistically significant. Moreover, the rate of HIF-1 alpha gene expression (2−ΔΔCT) was increased with cancer stages. According to the IHC results, there was a positive relationship between CRC stages and HIF-1 alpha protein expression (P < 0.05). Conclusions: HIF-1 alpha gene expression increased in earlier up to metastasis stages of CRC, but the assessment of HIF-1 alpha gene expression has not important role in the diagnosis of cancer in early stages and classification of carcinoma because the increasing of HIF-1 alpha gene expression is not significant in early cancer stages. |
| Databáze: | OpenAIRE |
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