Modification at the Lipophilic Domain of RXR Agonists Differentially Influences Activation of RXR Heterodimers
摘要:
RXR permissive heterodimers are reported to be activated differently depending upon the chemical structure of RXR agonists, but the relationship of agonist structure to differential heterodimer activation has not been explored in detail. In this study, we performed systematic conversion of the alkoxy side chain of 5a (6-[ethyl-(3-isopropoxy-4-isopropylphenyl)amino]nicotinic acid, NEt-3IP) and evaluated the RXR-, PPAR/RXR-, and LXR/RXR-agonist activities of the products. The cyclopropylmethoxy analogue (5c) showed similar RXR- and LXR/RXR-agonistic activities to the benzyloxy analogue (51) and n-propoxy analogue (5k) but exhibited more potent PPAR/RXR-agonistic activity than 51 or 5k. Differential modulation of RXR heterodimer-activating ability by conversion of the alkoxy group located in the lipophilic domain of the RXR-agonist common structure is expected be a useful approach in the design of new RXR agonists for the treatment of hyperlipidemia or type 2 diabetes.
DRUG FOR PREVENTING OR TREATING INFLAMMATORY BOWEL DISEASE
申请人:NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITY
公开号:US20180185342A1
公开(公告)日:2018-07-05
There is provided a drug for preventing or treating inflammatory bowel disease, comprising as an active ingredient an RXR agonist which is a compound represented by Formula (1). In Formula (1), it is preferred that: R
1
is an alkyl group; R
2
is an alkyl group; W is NR
3
, and R
3
is an alkyl group; X
1
is CH; Y
1
is N; X
2
and Y
2
are CH; and Z is a carboxyl group. Thus, a drug capable of strongly preventing or treating inflammatory bowel disease while suppressing the onset of side effects is provided.
Modification at the Lipophilic Domain of RXR Agonists Differentially Influences Activation of RXR Heterodimers
RXR permissive heterodimers are reported to be activated differently depending upon the chemical structure of RXR agonists, but the relationship of agonist structure to differential heterodimer activation has not been explored in detail. In this study, we performed systematic conversion of the alkoxy side chain of 5a (6-[ethyl-(3-isopropoxy-4-isopropylphenyl)amino]nicotinic acid, NEt-3IP) and evaluated the RXR-, PPAR/RXR-, and LXR/RXR-agonist activities of the products. The cyclopropylmethoxy analogue (5c) showed similar RXR- and LXR/RXR-agonistic activities to the benzyloxy analogue (51) and n-propoxy analogue (5k) but exhibited more potent PPAR/RXR-agonistic activity than 51 or 5k. Differential modulation of RXR heterodimer-activating ability by conversion of the alkoxy group located in the lipophilic domain of the RXR-agonist common structure is expected be a useful approach in the design of new RXR agonists for the treatment of hyperlipidemia or type 2 diabetes.