AIm:To detect the expression of tumor necrosis factor-a(TNF-a)in colorectal cancer(CRC)cells among Saudi patients,and correlate its expression with clinical stages of ***:Archival tissue specimens were collected from ...
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AIm:To detect the expression of tumor necrosis factor-a(TNF-a)in colorectal cancer(CRC)cells among Saudi patients,and correlate its expression with clinical stages of ***:Archival tissue specimens were collected from 30 patients with CRC who had undergone surgical intervention at King khalid University *** demographic information,including age and gender,tumor sites,and histological type of CRC,was *** measure TNF-a m RNA expression in CRC,total RNA was extracted from tumor formalin-fixed,paraffinembedded,and adjacent normal *** transcription and reverse transcription polymerase chain reaction were *** tissue microarrays were constructed to investigate the protein expression of TNF-a by ***:The relative expression of TNF-a m RNA in colorectal cancer was significantly higher than that seen in adjacent normal colorectal *** TNF-a gene expression was associated with StageⅢandⅣneoplasms when compared with earlier tumor stages(P=0.004).Eighty-three percent of patients(25/30)showed strong TNF-a positive staining,while only 10%(n=3/30)of patients showed weak staining,and 7%(n=2/30)were *** showed the presence of elevated TNF-a gene expression in cancer cells,which strongly correlated with advanced stages of ***:High levels of TNF-a expression could be an independent diagnostic indicator of colorectal cancer,and targeting TNF-a might be a promising prognostic tool by assessment of the clinical stages of CRC.
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