Title:Nicotinamide Adenine Dinucleotide Based Therapeutics, Update
Volume: 22
Issue: 34
Author(s): K.W. Pankiewicz, R. Petrelli, R. Singh and K. Felczak
Affiliation:
关键词:
NAD类似物,NAD依赖酶,IMP脱氢酶,NAD激酶,细菌连接酶,NMN腺苷转移酶,磷酸核糖转移酶,酶抑制剂,药物设计
摘要: About 500 NAD (P)-dependent enzymes in the cell use NAD (P) as
a cofactor or a substrate. This family of broadly diversified enzymes is crucial
for maintaining homeostasis of all living organisms. The NAD binding domain
of these enzymes is conserved and it was believed that NAD mimics would
not be of therapeutic value due to lack of selectivity. Consequently, only mycophenolic
acid which selectively binds at the cofactor pocket of NAD-dependent IMP-dehydrogenase
(IMPDH) has been approved as an immunosuppressant. Recently, it became clear that the NAD (P)-binding
domain was structurally much more diversified than anticipated and numerous highly potent and selective inhibitors
of NAD (P) dependent enzymes have been reported. It is likely, that as in the case of protein kinases
inhibitors, inhibitors of NAD (P)-dependent enzymes would find soon their way to the clinic. In this review,
recent developments of selective inhibitors of NAD-dependent human IMPDH, as well as inhibitors of
IMPDHs from parasites, and from bacterial sources are reported. Therapies against Cryptosporidium parvum
and the development of new antibiotics that are on the horizon will be discussed. New inhibitors of bacterial
NAD-ligases, NAD-kinases, NMN-adenylyl transferases, as well as phosphoribosyl transferases are also described.
Although none of these compounds has yet to be approved, the progress in revealing and understanding
crucial factors that might allow for designing more potent and efficient drug candidates is enormous and
highly encouraging.