Cytochroma Inc has discovered a new gene named CYP26C which encodes a retinoic acid metabolizing enzyme.

"Our discovery of the third member of this family of cytochrome P450s gives us an exclusive advantage to develop CYP26 specific and pan inhibitors for a wide range of potential applications", stated Dr. Robert Foldes, President & CEO.

Cytochroma demonstrated that CYP26C, and not CYP26A or CYP26B, metabolizes 9-cis retinoic acid. All three members of the CYP26 family metabolize all-trans retinoic acid. It is well known that 9-cis and all-trans retinoic acid function as potent inducers of cell differentiation and inhibitors of cell proliferation. By developing compounds which act on the CYP26 gene family, treatment of diseases such as cancer, as well as skin diseases such as acne and psoriasis, may be possible.

To look at possible diseases specifically linked to CYP26C expression, Dr. Martin Petkovich, Chief Scientific Officer for Cytochroma, has recently published work on the expression pattern in mouse embryos for CYP26C. Knowing where CYP26C is normally expressed is the first step in determining which diseases may be associated with this gene. Dr. Petkovich's work has shown expression for CYP26C in the hindbrain, inner ear and tooth buds during embryonic development.

CYP26 inhibitors are expected to raise endogenous levels of both all-trans and 9-cis retinoic acid in cells expressing the enzyme and thereby activate both RAR and RXR nuclear receptor pathways in a cell- and tissue-specific fashion.

Cytochroma is currently pursuing discussions with potential strategic partners to further develop this exciting discovery.