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Enhancement of neutral endopeptidase activity in SK-N-SH cells by green tea extract

Enhancement of neutral endopeptidase activity in SK-N-SH cells by green tea extract

Author: M.F. Melzig and M. Janka

Green tea extract (EFLA®85942) is able to induce specifically the neutral endopeptidase (NEP) activity and to inhibit the proliferation of SK-N-SH cells; the angiotensin-converting enzyme (ACE) activity is not influenced under the same conditions. The treatment of the cells with arabinosylcytosine and green tea extract results in a strong enhancement of cellular NEP activity whereas cellular ACE activity was not changed significantly, indicating a green tea extract-specific regulation of NEP expression. Because of its role in the degradation of amyloid beta peptides this enzyme induction of NEP by long term treatment with green tea extract may have a beneficial effect regarding the prevention of forming amyloid plaques.

 

 

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