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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Schistosoma hematobium soluble egg antigens induce proliferation of urothelial and endothelial cells.

Bladder carcinoma accounts for 26% of reported human malignancies in Egypt, and has been strongly associated with urinary schistosomiasis. Nevertheless, the immediate role of schistosomal egg proteins in bladder carcinogenesis is unexplored. We investigated the effects of crude soluble egg antigens (SEA) of Schistosoma hematobium on urothelial cell proliferation. The proliferation of bovine endothelial Endo, human urothelial J82 and smooth muscle SMC cell lines was assessed by low-density growth assays. SEA induced proliferation of both J82 and Endo cells in a dose-dependent fashion, but not SMC. Preboiling or proteinase K treatment of SEA abolished its effect. In addition, SEA enhanced urothelial expression of B-cell translocation protein (BTG1) and human proliferating cell nuclear antigen (PCNA) mRNAs. Given the strong correlation between cell proliferation and carcinogenesis, the findings suggest that crude SEA may play some role in schistosomal bladder carcinogenesis.[1]

References

  1. Schistosoma hematobium soluble egg antigens induce proliferation of urothelial and endothelial cells. El-Awady, M.K., Gad, Y.Z., Wen, Y., Eassawi, M., Effat, L., Amr, K.S., Ismail, S., Christ, G.J. World journal of urology. (2001) [Pubmed]
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