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Antitumor effect of ascorbic acid, lysine, proline, arginine, and green tea extract on bladder cancer cell line T‐24
Author(s) -
ROOMI M WAHEED,
IVANOV VADIM,
KALINOVSKY TATIANA,
NIEDZWIECKI ALEKSANDRA,
RATH MATTHIAS
Publication year - 2006
Publication title -
international journal of urology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 67
eISSN - 1442-2042
pISSN - 0919-8172
DOI - 10.1111/j.1442-2042.2006.01309.x
Subject(s) - matrigel , ascorbic acid , medicine , bladder cancer , cancer cell , cell culture , zymography , matrix metalloproteinase , microbiology and biotechnology , cancer , cancer research , biology , angiogenesis , food science , genetics
Aims: Bladder cancer, the fourth highest incident cancer in men and tenth in women, is associated with a high rate of recurrence, even when treated in situ , and prognosis is poor once the cancer metastasizes to distant sites. Based on anticancer properties, we investigated the effect of a mixture of lysine, proline, arginine, ascorbic acid, and green tea extract on human bladder cancer cells T‐24 by measuring: proliferation, matrix metalloproteinase (MMP) expression, and cancer cell invasive potential. Methods: Human bladder cancer cells T‐24 (ATCC) were grown in McCoy medium supplemented with 10% fetal bovine serum, penicillin (100 U/mL) and streptomycin (100 mg/mL) in 24‐well tissue culture plates. At near confluence, the cells were treated with the nutrient mixture dissolved in media and tested at 0, 10, 50, 100, 500, and 1000 µg/mL in triplicate at each dose. Cells were also treated with PMA 200 ng/mL to study enhanced MMP‐9 activity. Cell proliferation was evaluated by MTT assay, MMP activity by gelatinase zymography, and invasion through Matrigel. Results: Nutrient mixture inhibited the T‐24 cell secretion of MMP‐2 and ‐9, with virtual total inhibition of MMP‐2 at 500 µg/mL and MMP‐9 at 100 µg/mL. The nutrient mixture significantly reduced the invasion of human bladder cancer cells T‐24 through Matrigel in a dose‐dependent fashion, with 95% inhibition at 500 µg/mL and 100% at 1000 µg/mL nutrient mixture ( P < 0.001). Conclusion: Our results suggest that our nutrient mixture is an excellent candidate for therapeutic use in the treatment of bladder cancer, by inhibiting critical steps in cancer development and spread, such as MMP secretion and invasion.