摘要:
Proliferation of retinal pigment epithelium following surgery or trauma or resulting in ocular diseases associated with choroidal neovascularization, such as age related macular degeneration and histoplasmosis syndrome, is prevented by contacting retinal pigment epithelium cells with a therapeutic amount of a retinoic acid receptor (RAR agonist, preferably one with specific activity for retinoic acid receptors. Preferably the RAR agonist is also a potent antagonist of AP1-dependent gene expression. Alternatively, the proliferation of retinal pigment epithelium is ameliorated with a therapeutic amount of an AP-1 antagonist, alone or in combination with an RAR agonist. The drug can be administered by bolus injection into the vitreous cavity using a dosage from about 50 to 150 &mgr;g. Or by slow release from liposomes or an oil tamponade injected into the vitreous cavity. Formulations for preventing proliferation of retinal pigment epithelium are also provided.
摘要:
Proliferation of retinal pigment epithelium following surgery or trauma or resulting in ocular diseases associated with choroidal neovascularization, such as age related macular degeneration and histoplasmosis syndrome, is prevented by contacting retinal pigment epithelium cells with a therapeutic amount of a retinoic acid receptor (RAR agonist, preferably one with specific activity for retinoic acid receptors. Preferably the RAR agonist is also a potent antagonist of AP1-dependent gene expression. Alternatively, the proliferation of retinal pigment epithelium is ameliorated with a therapeutic amount of an AP-1 antagonist, alone or in combination with an RAR agonist. The drug can be administered by bolus injection into the vitreous cavity using a dosage from about 50 to 150 .mu.g. Or by slow release from liposomes or an oil tamponade injected into the vitreous cavity. Formulations for preventing proliferation of retinal pigment epithelium are also provided.
摘要:
Proliferation of retinal pigment epithelium following surgery or trauma is prevented by contacting retinal pigment epithelium cells with a therapeutic amount of a retinoic acid receptor (RAR) agonist, preferably one with specific activity for retinoic acid receptors. Preferably the RAR agonist is also a potent antagonist of AP1-dependent gene expression. Alternatively, the proliferation of retinal pigment epitelium is ameliorated with a therapeutic amount of an AP-1 antagonist, alone or in combination with an RAR agonist. The drug can be administered by bolus injection into the vitreous cavity using a dosage from about 50 to 150 .mu.g, or by slow release from liposomes or an oil tamponade injected into the vitreous cavity. Formulations for preventing proliferation of retinal pigment epithelium are also provided.
摘要:
Proliferation of retinal pigment epithelium following surgery or trauma is prevented by contacting retinal pigment epithelium cells with a therapeutic amount of a retinoic acid receptor (RAR) agonist, preferably one with specific activity for retinoic acid receptors. Preferably the RAR agonist is also a potent antagonist of AP1-dependent gene expression. Alternatively, the proliferation of retinal pigment epitelium is ameliorated witha therapeutic amount of an AP-1 antagonist, alone or in combination with an RAR agonist. The drug can be administered by bolus injection into the vitreous cavity using a dosage from about 50 to 150 .mu.g, or by slow release from liposomes or an oil tamponade injected into the vitreous cavity. Formulations for preventing proliferation of retinal pigment epithelium are also provided.
摘要:
Proliferation of retinal pigment epithelium following surgery or trauma or resulting in ocular diseases associated with choroidal neovascularization, such as age related macular degeneration and histoplasmosis syndrome, is prevented by contacting retinal pigment epithelium cells with a therapeutic amount of a retinoic acid receptor (RAR agonist, preferably one with specific activity for retinoic acid receptors. Preferably the RAR agonist is also a potent antagonist of AP1-dependent gene expression. Alternatively, the proliferation of retinal pigment epithelium is ameliorated with a therapeutic amount of an AP-1 antagonist, alone or in combination with an RAR agonist. The drug can be administered by bolus injection into the vitreous cavity using a dosage from about 50 to 150 &mgr;g. Or by slow release from liposomes or an oil tamponade injected into the vitreous cavity. Formulations for preventing proliferation of retinal pigment epithelium are also provided.
摘要:
Methods of characterizing and identifying negative hormones of nuclear receptors. Also disclosed are methods of making modulators of retinoid nuclear receptor transactivation activity, assays for agonists, antagonists, and negative hormones of the RAR receptor, and specific retinoid modulators of retinoid nuclear receptors.
摘要:
Retinoid compounds which repress expression of the gene promoted by AP1 protein but which do not significantly activate expression of the genes having RA-responsive elements in their promoter region through RAR.alpha. and RAR.GAMMA. receptor subtypes, are used, with reduced side effects, for treating diseases and conditions which are responsive to therapy with retinoids.
摘要:
Aryl-substituted and aryl and (3-oxo-1-propenly)-substituted benzopyran, benzothiopyran, 1,2-dihydroquinoline, and 5,6-dihydronaphthalene derivatives have retinoid negative hormone and/or antagonist-like biological activities. The invented RAR antagonists can be administered to mammals, including humans, for the purpose of preventing or diminishing action of RAR agonists on the bound receptor sites. Specifically, the RAR agonists are administered or coadministered with retinoid drugs to prevent or ameliorate toxicity or side effects caused by retinoids or vitamin A or vitamin A precursors. The retinoid negative hormones can be used to potentiate the activities of other retinoids and nuclear receptor agonists. For example, the retinoid negative hormone called AGN 193109 effectively increased the effectiveness of other retinoids and steroid hormones in in vitro transactivation assays. Additionally, transactivation assays can be used to identify compounds having negative hormone activity. These assays are based on the ability of negative hormones to down-regulate the activity of chimeric retinoid receptors engineered to possess a constitutive transcription activator domain.
摘要:
Aryl-substituted and aryl and (3-oxo-1-propenly)-substituted benzopyran, benzothiopyran, 1,2-dihydroquinoline, and 5,6-dihydronaphthalene derivatives have retinoid negative hormone and/or antagonist-like biological activities. The invented RAR antagonists can be administered to mammals, including humans, for the purpose of preventing or diminishing action of RAR agonists on the bound receptor sites. Specifically, the RAR agonists are administered or coadministered with retinoid drugs to prevent or ameliorate toxicity or side effects caused by retinoids or vitamin A or vitamin A precursors. The retinoid negative hormones can be used to potentiate the activities of other retinoids and nuclear receptor agonists. For example, the retinoid negative hormone called AGN 193109 effectively increased the effectiveness of other retinoids and steroid hormones in in vitro transactivation assays. Additionally, transactivation assays can be used to identify compounds having negative hormone activity. These assays are based on the ability of negative hormones to down-regulate the activity of chimeric retinoid receptors engineered to possess a constitutive transcription activator domain.
摘要:
Aryl-substituted and aryl and (3-oxo-1-propenly)-substituted benzopyran, benzothiopyran, 1,2-dihydroquinoline, and 5,6-dihydronaphthalene derivatives have retinoid negative hormone and/or antagonist-like biological activities. The invented RAR antagonists can be administered to mammals, including humans, for the purpose of preventing or diminishing action of RAR agonists on the bound receptor sites. Specifically, the RAR agonists are administered or coadministered with retinoid drugs to prevent or ameliorate toxicity or side effects caused by retinoids or vitamin A or vitamin A precursors. The retinoid negative hormones can be used to potentiate the activities of other retinoids and nuclear receptor agonists. For example, the retinoid negative hormone called AGN 193109 effectively increased the effectiveness of other retinoids and steroid hormones in in vitro transactivation assays. Additionally, transactivation assays can be used to identify compounds having negative hormone activity. These assays are based on the ability of negative hormones to down-regulate the activity of chimeric retinoid receptors engineered to possess a constitutive transcription activator domain.