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CBS's inhibitors could synergize with metastatic colorectal cancer therapies
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CBS: Sniffing out cancer therapy
Monday, March 3, 2014
Therapeutics Inc. is developing first-in-class inhibitors of
cystathionine beta synthase that could synergize with existing therapies to
treat both KRAS-mutant and wild-type metastatic colorectal cancer.
Cystathionine beta synthase
(CBS) is found in many cell types and metabolizes the amino acid homocysteine
to cystathionine by two different routes. One route produces hydrogen sulfide,
a gas involved in normal vasorelaxation, angiogenesis and energy production.
While studies have shown exogenous hydrogen sulfide promotes growth in cancer
cell lines, the roles of endogenously produced hydrogen sulfide and CBS in
cancer were undefined.
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