title: Lack of interleukin 6 (IL-6) and transforming growth factor alpha (TGF-alpha) expression in chromophobe renal cell carcinomas.
abstract: We demonstrate the constitutive expression of interleukin 6 (IL-6), IL-8, granulocyte-macrophage colony-stimulating factor (GM-CSF), epidermal growth factor (EGF), transforming growth factor alpha (TGF-alpha) and epidermal growth factor receptor (EGFR) in normal kidney cells, and in the majority of renal oncocytomas, papillary and non-papillary renal cell carcinomas (RCCs) by reverse transcriptase polymerase chain reaction (RT-PCR) technique. No expression of IL-6 and TGF-alpha and variable expression of GM-CSF, IL-8, EGF and EGFR was seen in chromophobe RCCs. The lack of expression of IL-6 and TGF-alpha might be correlated with the growth pattern, poor vascularity and low malignancy of chromophobe RCCs.
authors.affiliation: Department of Urology, Ruprecht-Karls-University, Heidelberg, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Chudek
authors.forename: D
authors.initials: D
authors.lastname: Schullerus
authors.forename: M
authors.initials: M
authors.lastname: Wilhelm
authors.forename: G
authors.initials: G
authors.lastname: Kovacs
mesh_terms: D002291:Carcinoma, Papillary / Q000235:genetics / Q000378:metabolism*; D002292:Carcinoma, Renal Cell / Q000145:classification / Q000235:genetics / Q000378:metabolism*; D004815:Epidermal Growth Factor / Q000096:biosynthesis; D066246:ErbB Receptors / Q000096:biosynthesis; D015870:Gene Expression; D016178:Granulocyte-Macrophage Colony-Stimulating Factor / Q000096:biosynthesis; D006801:Humans; D015850:Interleukin-6 / Q000096:biosynthesis*; D007680:Kidney Neoplasms / Q000145:classification / Q000235:genetics / Q000378:metabolism*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D016211:Transforming Growth Factor alpha / Q000096:biosynthesis*
chemical_list: D015850:Interleukin-6; D016211:Transforming Growth Factor alpha; D004815:Epidermal Growth Factor; D016178:Granulocyte-Macrophage Colony-Stimulating Factor; D066246:ErbB Receptors