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2016 ; 111
(ä): 413-421
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A pyruvate decarboxylase-mediated therapeutic strategy for mimicking yeast
metabolism in cancer cells
#MMPMID27394167
Scott B
; Shen J
; Nizzero S
; Boom K
; Persano S
; Mi Y
; Liu X
; Zhao Y
; Blanco E
; Shen H
; Ferrari M
; Wolfram J
Pharmacol Res
2016[Sep]; 111
(ä): 413-421
PMID27394167
show ga
Cancer cells have high rates of glycolysis and lactic acid fermentation in order
to fuel accelerated rates of cell division (Warburg effect). Here, we present a
strategy for merging cancer and yeast metabolism to remove pyruvate, a key
intermediate of cancer cell metabolism, and produce the toxic compound
acetaldehyde. This approach was achieved by administering the yeast enzyme
pyruvate decarboxylase to triple negative breast cancer cells. To overcome the
challenges of protein delivery, a nanoparticle-based system consisting of
cationic lipids and porous silicon were employed to obtain efficient
intracellular uptake. The results demonstrate that the enzyme therapy decreases
cancer cell viability through production of acetaldehyde and reduction of lactic
acid fermentation.