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The etiology of bladder cancer--are there any new clues or predictors of behavior?

Abstract
It is well documented that the etiology of bladder cancer involves environmental factors. Most chemical carcinogens probably affect the urothelial cells via their presence in the urine. As an important cofactor, cell proliferative activity may be increased by urinary bladder infection, irritation by bladder stones or through the action of a variety of endogenously produced direct acting chemicals or agents. Among the known causative factors, avoidable major ones are occupational exposure to certain chemicals such as benzidine and 4-aminobiphenyl, cigarette smoking and bilharzial infection, which could be eradicated by a combination of praziquantel, antihelminth therapy, education and improvements in social welfare. An anticarcinogenic drug, cyclophosphamide, used as an immunosuppressive agent also seems to be associated with a high risk of idiopathic induction of bladder cancer and physicians should therefore pay particular attention to its diverse effects when considering its prescription. In contrast to the above, the consumption of coffee and tea including artificial sweeteners is now thought unlikely to be major risk. So far there is no good biochemical tool to predict individual exposure to bladder carcinogens/or relative risk of bladder cancer development. However, acetylation capacity can be applied to assess susceptibility to carcinogenic amines in people exposed in their working environment. Progress in molecular biological analysis will hopefully bring to light etiology-specific DNA damage in the bladder tumors and prove useful for prediction of tumor behavior in the near future.
AuthorsT Shirai, Y Fradet, H Huland, C Bollack, M Droller, R Janknegt, P Jones, S Kagawa
JournalInternational journal of urology : official journal of the Japanese Urological Association (Int J Urol) Vol. 2 Suppl 2 Pg. 64-75 (Jun 1995) ISSN: 0919-8172 [Print] Australia
PMID7553307 (Publication Type: Journal Article, Review)
Topics
  • Diet (adverse effects)
  • Environmental Exposure
  • Humans
  • Infections (complications)
  • Smoking (adverse effects)
  • Urinary Bladder Diseases (complications)
  • Urinary Bladder Neoplasms (etiology)

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