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  • Title: Localization of transforming growth factors beta1 and beta2 and epidermal growth factor in IgA nephropathy.
    Author: Taniguchi Y, Yorioka N, Masaki T, Asakimori Y, Yamashita K, Yamakido M.
    Journal: Scand J Urol Nephrol; 1999 Aug; 33(4):243-7. PubMed ID: 10515087.
    Abstract:
    OBJECTIVE: The localization of transforming growth factor (TGF)-beta1. TGF-beta2 and epidermal growth factor (EGF) was investigated in IgA nephropathy, and was compared with the severity of histological damage (including tubulointerstitial lesions). MATERIALS AND METHODS: The enzyme antibody method was used to stain paraffin-embedded sections of renal tissue from 42 patients with IgA nephropathy (19 males and 23 females). RESULTS: There was a significant correlation between glomerular positivity for TGF-beta1 and TGF-beta2 and the severity of histological damage. There was also a significant correlation between positivity for TGF-beta1 and TGF-beta2 in the tubular epithelium and tubulointerstitial lesions. In contrast, there was no relationship between glomerular positivity for EGF and histological damage, although there was a significant correlation between positivity for EGF in the tubular epithelium and tubulointerstitial lesions. CONCLUSIONS: These findings suggest that TGF-beta1 and TGF-beta2 may be important in the progression of IgA nephropathy, and that the distribution of EGF may also be a useful marker for the progression of renal damage, including tubulointerstitial lesions.
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