Abstract
Background: Transforming growth factor-β (TGF-β) is a multifunctional cytokine that has been linked to vascular remodeling processes, myocardial hypertrophy, and renal fibrosis. The aim of the present study was to evaluate the clinical value of tgfβ1as a tumor marker for the diagnosis and postoperative follow- up of patients suffering from RCC.
Methods: A total of 36 patients were included in the study. These patients were first evaluated for RCC and then later confirmed by HPE. tgfβ1 in plasma samples was estimated by using a commercially available ELISA kit From DRG INTERNATIONAL, Inc GmbH Germany.
Results: After HPE clear cell type was the most common type (25/32 -78.1%), followed by papillary type (4/32 -15.6%), chromophobic type (2/32 -6.2%) and angiomyolipoma (1/32 -3.1%). Out of 36 patients 29 (80.5%) patients had no lymph nodes and 7 (19.4%) patients were positive for lymph nodes. 36 Patients of RCC showed elevated level of tgfβ1as compared to the control group. Comparing these tgfβ1 levels with the localized RCC group having mean levels 25527.42 ng/l, a statistically significant difference (P<0.05) was found.
Conclusions: The present study indicates that tgfβ1 levels in RCC patients irrespective of pathological stage of tumor & or metastasis remain quite high even after nephrectomy & even upto six months of follow up. Thus tgfβ1 levels alone cannot be used as single prognostic marker to monitor the progression of disease or treatment in RCC.
Keywords: Transforming growth factor-β1 - diagnosis - monitoring – prognosis, renal cell carcinoma (RCC).
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Corresponding Author
Naveed Khan
Consultant, Kidney Hospital Srinagar India
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