Medrysone

Identification

Summary

Medrysone is a topical glucocorticoid applied ophthalmically for the treatment of various ocular inflammatory or allergic conditions.

Brand Names
Hms
Generic Name
Medrysone
DrugBank Accession Number
DB00253
Background

Medrysone is a corticosteroid used in ophthalmology.

Type
Small Molecule
Groups
Approved
Structure
Weight
Average: 344.4877
Monoisotopic: 344.23514489
Chemical Formula
C22H32O3
Synonyms
  • 11beta-Hydroxy-6alpha-methylpregn-4-ene-3,20-dione
  • Medrisona
  • Medrysone
  • Medrysonum
External IDs
  • GSH 1043
  • NSC-63278
  • U 8471
  • U-8471

Pharmacology

Indication

For the treatment of allergic conjunctivitis, vernal conjunctivitis, episcleritis, and epinephrine sensitivity.

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Associated Conditions
Indication TypeIndicationCombined Product DetailsApproval LevelAge GroupPatient CharacteristicsDose Form
Treatment ofConjunctivitis allergic••••••••••••••••••••••
Treatment ofConjunctivitis, vernal••••••••••••••••••••••
Treatment ofEpinephrine sensitivity••••••••••••••••••••••
Treatment ofEpiscleritis••••••••••••••••••••••
Contraindications & Blackbox Warnings
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Pharmacodynamics

Medrysone is a topical anti-inflammatory corticoidsteroids for ophthalmic use. In patients with increased intraocular pressure and in those susceptible to a rise in intraocular pressure, there is less effect on pressure with medrysone than with dexamethasone or betamethasone. Corticoidsteroids inhibit the edema, fibrin deposition, capillary dilation, and phagocytic migration of the acute inflammatory response, as well as capillary proliferation, deposition of collagen, and scar formation.

Mechanism of action

There is no generally accepted explanation for the mechanism of action of ocular corticosteroids. However, corticosteroids are thought to act by the induction of phospholipase A2 inhibitory proteins, collectively called lipocortins. It is postulated that these proteins control the biosynthesis of potent mediators of inflammation such as prostaglandins and leukotrienes by inhibiting the release of their common precursor, arachidonic acid. Arachidonic acid is released from membrane phospholipids by phospholipase A2. Initially, the drug binds to the glucocorticoid receptor in the cytosol. This migrates to the nucleus and binds to genetic elements which cause activation and repression of the involved genes in the inflammatory pathway.

TargetActionsOrganism
ASteroid hormone receptor ERR1
modulator
Humans
ASteroid hormone receptor ERR2
modulator
Humans
AEstrogen-related receptor gamma
modulator
Humans
AGlucocorticoid receptor
agonist
Humans
Absorption

Rapidly absorbed following oral administration.

Volume of distribution

Not Available

Protein binding

Not Available

Metabolism
Not Available
Route of elimination

Not Available

Half-life

Not Available

Clearance

Not Available

Adverse Effects
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Toxicity

Not Available

Pathways
Not Available
Pharmacogenomic Effects/ADRs
Not Available

Interactions

Drug Interactions
This information should not be interpreted without the help of a healthcare provider. If you believe you are experiencing an interaction, contact a healthcare provider immediately. The absence of an interaction does not necessarily mean no interactions exist.
DrugInteraction
AbametapirThe serum concentration of Medrysone can be increased when it is combined with Abametapir.
AcarboseThe risk or severity of hyperglycemia can be increased when Medrysone is combined with Acarbose.
AcetohexamideThe risk or severity of hyperglycemia can be increased when Medrysone is combined with Acetohexamide.
AcetyldigitoxinThe risk or severity of adverse effects can be increased when Medrysone is combined with Acetyldigitoxin.
AlbiglutideThe risk or severity of hyperglycemia can be increased when Medrysone is combined with Albiglutide.
Food Interactions
No interactions found.

Products

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Brand Name Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing EndRegionImage
HmsSuspension10 mg/1mLOphthalmicAllergan, Inc.2006-02-28Not applicableUS flag
HmsSolution / drops1 %OphthalmicAllergan, Inc.1969-12-312011-08-04Canada flag

Categories

ATC Codes
S01BA08 — Medrysone
Drug Categories
Chemical TaxonomyProvided by Classyfire
Description
This compound belongs to the class of organic compounds known as gluco/mineralocorticoids, progestogins and derivatives. These are steroids with a structure based on a hydroxylated prostane moiety.
Kingdom
Organic compounds
Super Class
Lipids and lipid-like molecules
Class
Steroids and steroid derivatives
Sub Class
Pregnane steroids
Direct Parent
Gluco/mineralocorticoids, progestogins and derivatives
Alternative Parents
20-oxosteroids / 3-oxo delta-4-steroids / 11-beta-hydroxysteroids / Delta-4-steroids / Cyclohexenones / Secondary alcohols / Cyclic alcohols and derivatives / Organic oxides / Hydrocarbon derivatives
Substituents
11-beta-hydroxysteroid / 11-hydroxysteroid / 20-oxosteroid / 3-oxo-delta-4-steroid / 3-oxosteroid / Alcohol / Aliphatic homopolycyclic compound / Carbonyl group / Cyclic alcohol / Cyclic ketone
Molecular Framework
Aliphatic homopolycyclic compounds
External Descriptors
corticosteroid hormone (CHEBI:34829)
Affected organisms
  • Humans and other mammals

Chemical Identifiers

UNII
D2UFC189XF
CAS number
2668-66-8
InChI Key
GZENKSODFLBBHQ-ILSZZQPISA-N
InChI
InChI=1S/C22H32O3/c1-12-9-15-17-6-5-16(13(2)23)22(17,4)11-19(25)20(15)21(3)8-7-14(24)10-18(12)21/h10,12,15-17,19-20,25H,5-9,11H2,1-4H3/t12-,15-,16+,17-,19-,20+,21-,22+/m0/s1
IUPAC Name
(1S,3aS,3bS,5S,9aR,9bS,10S,11aS)-1-acetyl-10-hydroxy-5,9a,11a-trimethyl-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one
SMILES
[H][C@@]12CC[C@H](C(C)=O)[C@@]1(C)C[C@H](O)[C@@]1([H])[C@@]2([H])C[C@H](C)C2=CC(=O)CC[C@]12C

References

General References
  1. FDA Approved Drug Products: Allergan Medrysone Ophthalmic Suspension (Discontinued) [Link]
Human Metabolome Database
HMDB0014398
KEGG Drug
D02289
KEGG Compound
C14643
PubChem Compound
247839
PubChem Substance
46506584
ChemSpider
216968
RxNav
29439
ChEBI
34829
ChEMBL
CHEMBL1201173
ZINC
ZINC000003977945
Therapeutic Targets Database
DAP001048
PharmGKB
PA450346
RxList
RxList Drug Page
Drugs.com
Drugs.com Drug Page
Wikipedia
Medrysone
FDA label
Download (149 KB)
MSDS
Download (48.5 KB)

Clinical Trials

Clinical Trials
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PhaseStatusPurposeConditionsCountStart DateWhy Stopped100+ additional columns

Pharmacoeconomics

Manufacturers
  • Allergan pharmaceutical
Packagers
Not Available
Dosage Forms
FormRouteStrength
Solution / dropsOphthalmic1 %
SuspensionOphthalmic10 mg/1mL
Prices
Not Available
Patents
Not Available

Properties

State
Solid
Experimental Properties
PropertyValueSource
melting point (°C)156.5 °CPhysProp
logP3.2Not Available
Predicted Properties
PropertyValueSource
Water Solubility0.0337 mg/mLALOGPS
logP3.06ALOGPS
logP3.13Chemaxon
logS-4ALOGPS
pKa (Strongest Acidic)18.37Chemaxon
pKa (Strongest Basic)-0.26Chemaxon
Physiological Charge0Chemaxon
Hydrogen Acceptor Count3Chemaxon
Hydrogen Donor Count1Chemaxon
Polar Surface Area54.37 Å2Chemaxon
Rotatable Bond Count1Chemaxon
Refractivity98.85 m3·mol-1Chemaxon
Polarizability39.94 Å3Chemaxon
Number of Rings4Chemaxon
Bioavailability1Chemaxon
Rule of FiveYesChemaxon
Ghose FilterYesChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleNoChemaxon
Predicted ADMET Features
PropertyValueProbability
Human Intestinal Absorption+1.0
Blood Brain Barrier+0.9705
Caco-2 permeable+0.8125
P-glycoprotein substrateSubstrate0.6825
P-glycoprotein inhibitor IInhibitor0.6076
P-glycoprotein inhibitor IINon-inhibitor0.7298
Renal organic cation transporterNon-inhibitor0.7757
CYP450 2C9 substrateNon-substrate0.7961
CYP450 2D6 substrateNon-substrate0.9127
CYP450 3A4 substrateSubstrate0.7688
CYP450 1A2 substrateNon-inhibitor0.9046
CYP450 2C9 inhibitorNon-inhibitor0.869
CYP450 2D6 inhibitorNon-inhibitor0.9491
CYP450 2C19 inhibitorNon-inhibitor0.9026
CYP450 3A4 inhibitorNon-inhibitor0.8309
CYP450 inhibitory promiscuityLow CYP Inhibitory Promiscuity0.9052
Ames testNon AMES toxic0.9525
CarcinogenicityNon-carcinogens0.9338
BiodegradationNot ready biodegradable0.9822
Rat acute toxicity2.3015 LD50, mol/kg Not applicable
hERG inhibition (predictor I)Weak inhibitor0.8934
hERG inhibition (predictor II)Non-inhibitor0.7724
ADMET data is predicted using admetSAR, a free tool for evaluating chemical ADMET properties. (23092397)

Spectra

Mass Spec (NIST)
Not Available
Spectra
SpectrumSpectrum TypeSplash Key
Predicted GC-MS Spectrum - GC-MSPredicted GC-MSsplash10-0kou-1968000000-6477c0d7e9701194dbec
LC-MS/MS Spectrum - LC-ESI-qTof , PositiveLC-MS/MSsplash10-0002-0329000000-a39ea3d5131dd74530f9
LC-MS/MS Spectrum - LC-ESI-qTof , PositiveLC-MS/MSsplash10-0a4i-4901000000-b25f2b64f82210ccef6f
MS/MS Spectrum - , positiveLC-MS/MSsplash10-0002-0329000000-a39ea3d5131dd74530f9
MS/MS Spectrum - , positiveLC-MS/MSsplash10-053j-3920000000-e4a574efed2d534b983c
Predicted MS/MS Spectrum - 10V, Positive (Annotated)Predicted LC-MS/MSsplash10-056s-0009000000-913b00cf7dccfbc354ab
Predicted MS/MS Spectrum - 10V, Negative (Annotated)Predicted LC-MS/MSsplash10-0006-0009000000-1fa3e9dad5874f4fa764
Predicted MS/MS Spectrum - 20V, Negative (Annotated)Predicted LC-MS/MSsplash10-0006-0009000000-1abf466929078aa33ce2
Predicted MS/MS Spectrum - 20V, Positive (Annotated)Predicted LC-MS/MSsplash10-004i-0339000000-ac5d6398d37df0b69a1f
Predicted MS/MS Spectrum - 40V, Negative (Annotated)Predicted LC-MS/MSsplash10-05mo-0019000000-7e1b447eba4596ab327a
Predicted MS/MS Spectrum - 40V, Positive (Annotated)Predicted LC-MS/MSsplash10-06g1-1950000000-513c9c3a10ac2b877dc3
Predicted 1H NMR Spectrum1D NMRNot Applicable
Predicted 13C NMR Spectrum1D NMRNot Applicable
Chromatographic Properties
Collision Cross Sections (CCS)
AdductCCS Value (Å2)Source typeSource
[M-H]-191.3848187
predicted
DarkChem Lite v0.1.0
[M-H]-186.8792187
predicted
DarkChem Lite v0.1.0
[M-H]-190.38771
predicted
DeepCCS 1.0 (2019)
[M+H]+191.3923187
predicted
DarkChem Lite v0.1.0
[M+H]+187.5856187
predicted
DarkChem Lite v0.1.0
[M+H]+192.2831
predicted
DeepCCS 1.0 (2019)
[M+Na]+191.2800187
predicted
DarkChem Lite v0.1.0
[M+Na]+186.9847187
predicted
DarkChem Lite v0.1.0
[M+Na]+198.17036
predicted
DeepCCS 1.0 (2019)

Targets

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insights and accelerate drug research.
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Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Modulator
General Function
Binds to an ERR-alpha response element (ERRE) containing a single consensus half-site, 5'-TNAAGGTCA-3'. Can bind to the medium-chain acyl coenzyme A dehydrogenase (MCAD) response element NRRE-1 and may act as an important regulator of MCAD promoter. Binds to the C1 region of the lactoferrin gene promoter. Requires dimerization and the coactivator, PGC-1A, for full activity. The ERRalpha/PGC1alpha complex is a regulator of energy metabolism. Induces the expression of PERM1 in the skeletal muscle
Specific Function
DNA-binding transcription factor activity
Gene Name
ESRRA
Uniprot ID
P11474
Uniprot Name
Steroid hormone receptor ERR1
Molecular Weight
45509.11 Da
References
  1. Zhou Y, Zhang Y, Zhao D, Yu X, Shen X, Zhou Y, Wang S, Qiu Y, Chen Y, Zhu F: TTD: Therapeutic Target Database describing target druggability information. Nucleic Acids Res. 2024 Jan 5;52(D1):D1465-D1477. doi: 10.1093/nar/gkad751. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Modulator
General Function
Transcription factor that binds a canonical ESRRB recognition (ERRE) sequence 5'TCAAGGTCA-3' localized on promoter and enhancer of targets genes regulating their expression or their transcription activity (PubMed:17920186, PubMed:19755138). Plays a role, in a LIF-independent manner, in maintainance of self-renewal and pluripotency of embryonic and trophoblast stem cells through different signaling pathways including FGF signaling pathway and Wnt signaling pathways. Upon FGF signaling pathway activation, interacts with KDM1A by directly binding to enhancer site of ELF5 and EOMES and activating their transcription leading to self-renewal of trophoblast stem cells. Also regulates expression of multiple rod-specific genes and is required for survival of this cell type (By similarity). Plays a role as transcription factor activator of GATA6, NR0B1, POU5F1 and PERM1 (PubMed:23836911). Plays a role as transcription factor repressor of NFE2L2 transcriptional activity and ESR1 transcriptional activity (PubMed:17920186, PubMed:19755138). During mitosis remains bound to a subset of interphase target genes, including pluripotency regulators, through the canonical ESRRB recognition (ERRE) sequence, leading to their transcriptional activation in early G1 phase. Can coassemble on structured DNA elements with other transcription factors like SOX2, POU5F1, KDM1A and NCOA3 to trigger ESRRB-dependent gene activation. This mechanism, in the case of SOX2 corecruitment prevents the embryonic stem cells (ESCs) to epiblast stem cells (EpiSC) transition through positive regulation of NR0B1 that inhibits the EpiSC transcriptional program. Also plays a role inner ear development by controlling expression of ion channels and transporters and in early placentation (By similarity)
Specific Function
cis-regulatory region sequence-specific DNA binding
Gene Name
ESRRB
Uniprot ID
O95718
Uniprot Name
Steroid hormone receptor ERR2
Molecular Weight
48053.14 Da
References
  1. Zhou Y, Zhang Y, Zhao D, Yu X, Shen X, Zhou Y, Wang S, Qiu Y, Chen Y, Zhu F: TTD: Therapeutic Target Database describing target druggability information. Nucleic Acids Res. 2024 Jan 5;52(D1):D1465-D1477. doi: 10.1093/nar/gkad751. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Modulator
General Function
Orphan receptor that acts as a transcription activator in the absence of bound ligand. Binds specifically to an estrogen response element and activates reporter genes controlled by estrogen response elements (By similarity). Induces the expression of PERM1 in the skeletal muscle
Specific Function
AF-2 domain binding
Gene Name
ESRRG
Uniprot ID
P62508
Uniprot Name
Estrogen-related receptor gamma
Molecular Weight
51305.485 Da
References
  1. Zhou Y, Zhang Y, Zhao D, Yu X, Shen X, Zhou Y, Wang S, Qiu Y, Chen Y, Zhu F: TTD: Therapeutic Target Database describing target druggability information. Nucleic Acids Res. 2024 Jan 5;52(D1):D1465-D1477. doi: 10.1093/nar/gkad751. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Agonist
General Function
Receptor for glucocorticoids (GC) (PubMed:27120390, PubMed:37478846). Has a dual mode of action: as a transcription factor that binds to glucocorticoid response elements (GRE), both for nuclear and mitochondrial DNA, and as a modulator of other transcription factors (PubMed:28139699). Affects inflammatory responses, cellular proliferation and differentiation in target tissues. Involved in chromatin remodeling (PubMed:9590696). Plays a role in rapid mRNA degradation by binding to the 5' UTR of target mRNAs and interacting with PNRC2 in a ligand-dependent manner which recruits the RNA helicase UPF1 and the mRNA-decapping enzyme DCP1A, leading to RNA decay (PubMed:25775514). Could act as a coactivator for STAT5-dependent transcription upon growth hormone (GH) stimulation and could reveal an essential role of hepatic GR in the control of body growth (By similarity)
Specific Function
core promoter sequence-specific DNA binding
Gene Name
NR3C1
Uniprot ID
P04150
Uniprot Name
Glucocorticoid receptor
Molecular Weight
85658.57 Da
References
  1. Southren AL, Dominguez MO, Gordon GG, Wenk EJ, Hernandez MR, Dunn MW, Weinstein BI: Nuclear translocation of the cytoplasmic glucocorticoid receptor in the iris-ciliary body and adjacent corneoscleral tissue of the rabbit following topical administration of various glucocorticoids. A rapid screening method for glucocorticoid activity. Invest Ophthalmol Vis Sci. 1983 Feb;24(2):147-52. [Article]
  2. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]
  3. Czock D, Keller F, Rasche FM, Haussler U: Pharmacokinetics and pharmacodynamics of systemically administered glucocorticoids. Clin Pharmacokinet. 2005;44(1):61-98. doi: 10.2165/00003088-200544010-00003. [Article]

Enzymes

Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Substrate
Inducer
General Function
A cytochrome P450 monooxygenase involved in the metabolism of sterols, steroid hormones, retinoids and fatty acids (PubMed:10681376, PubMed:11093772, PubMed:11555828, PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:19965576, PubMed:20702771, PubMed:21490593, PubMed:21576599). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase). Catalyzes the hydroxylation of carbon-hydrogen bonds (PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:21490593, PubMed:21576599, PubMed:2732228). Exhibits high catalytic activity for the formation of hydroxyestrogens from estrone (E1) and 17beta-estradiol (E2), namely 2-hydroxy E1 and E2, as well as D-ring hydroxylated E1 and E2 at the C-16 position (PubMed:11555828, PubMed:12865317, PubMed:14559847). Plays a role in the metabolism of androgens, particularly in oxidative deactivation of testosterone (PubMed:15373842, PubMed:15764715, PubMed:22773874, PubMed:2732228). Metabolizes testosterone to less biologically active 2beta- and 6beta-hydroxytestosterones (PubMed:15373842, PubMed:15764715, PubMed:2732228). Contributes to the formation of hydroxycholesterols (oxysterols), particularly A-ring hydroxylated cholesterol at the C-4beta position, and side chain hydroxylated cholesterol at the C-25 position, likely contributing to cholesterol degradation and bile acid biosynthesis (PubMed:21576599). Catalyzes bisallylic hydroxylation of polyunsaturated fatty acids (PUFA) (PubMed:9435160). Catalyzes the epoxidation of double bonds of PUFA with a preference for the last double bond (PubMed:19965576). Metabolizes endocannabinoid arachidonoylethanolamide (anandamide) to 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid ethanolamides (EpETrE-EAs), potentially modulating endocannabinoid system signaling (PubMed:20702771). Plays a role in the metabolism of retinoids. Displays high catalytic activity for oxidation of all-trans-retinol to all-trans-retinal, a rate-limiting step for the biosynthesis of all-trans-retinoic acid (atRA) (PubMed:10681376). Further metabolizes atRA toward 4-hydroxyretinoate and may play a role in hepatic atRA clearance (PubMed:11093772). Responsible for oxidative metabolism of xenobiotics. Acts as a 2-exo-monooxygenase for plant lipid 1,8-cineole (eucalyptol) (PubMed:11159812). Metabolizes the majority of the administered drugs. Catalyzes sulfoxidation of the anthelmintics albendazole and fenbendazole (PubMed:10759686). Hydroxylates antimalarial drug quinine (PubMed:8968357). Acts as a 1,4-cineole 2-exo-monooxygenase (PubMed:11695850). Also involved in vitamin D catabolism and calcium homeostasis. Catalyzes the inactivation of the active hormone calcitriol (1-alpha,25-dihydroxyvitamin D(3)) (PubMed:29461981)
Specific Function
1,8-cineole 2-exo-monooxygenase activity
Gene Name
CYP3A4
Uniprot ID
P08684
Uniprot Name
Cytochrome P450 3A4
Molecular Weight
57342.67 Da
References
  1. Dvorak Z, Pavek P: Regulation of drug-metabolizing cytochrome P450 enzymes by glucocorticoids. Drug Metab Rev. 2010 Nov;42(4):621-35. doi: 10.3109/03602532.2010.484462. [Article]
  2. NCI/NIH [Link]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Inducer
General Function
A cytochrome P450 monooxygenase involved in the metabolism of steroid hormones and vitamins (PubMed:10681376, PubMed:11093772, PubMed:12865317, PubMed:2732228). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase). Catalyzes the hydroxylation of carbon-hydrogen bonds (PubMed:10681376, PubMed:11093772, PubMed:12865317, PubMed:2732228). Exhibits high catalytic activity for the formation of catechol estrogens from 17beta-estradiol (E2) and estrone (E1), namely 2-hydroxy E1 and E2 (PubMed:12865317). Catalyzes 6beta-hydroxylation of the steroid hormones testosterone, progesterone, and androstenedione (PubMed:2732228). Catalyzes the oxidative conversion of all-trans-retinol to all-trans-retinal, a rate-limiting step for the biosynthesis of all-trans-retinoic acid (atRA) (PubMed:10681376). Further metabolizes all trans-retinoic acid (atRA) to 4-hydroxyretinoate and may play a role in hepatic atRA clearance (PubMed:11093772). Also involved in the oxidative metabolism of xenobiotics, including calcium channel blocking drug nifedipine and immunosuppressive drug cyclosporine (PubMed:2732228)
Specific Function
aromatase activity
Gene Name
CYP3A5
Uniprot ID
P20815
Uniprot Name
Cytochrome P450 3A5
Molecular Weight
57108.065 Da
References
  1. Dvorak Z, Pavek P: Regulation of drug-metabolizing cytochrome P450 enzymes by glucocorticoids. Drug Metab Rev. 2010 Nov;42(4):621-35. doi: 10.3109/03602532.2010.484462. [Article]

Carriers

Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Binder
General Function
Major transport protein for glucocorticoids and progestins in the blood of almost all vertebrate species
Specific Function
serine-type endopeptidase inhibitor activity
Gene Name
SERPINA6
Uniprot ID
P08185
Uniprot Name
Corticosteroid-binding globulin
Molecular Weight
45140.49 Da
References
  1. Gardill BR, Vogl MR, Lin HY, Hammond GL, Muller YA: Corticosteroid-binding globulin: structure-function implications from species differences. PLoS One. 2012;7(12):e52759. doi: 10.1371/journal.pone.0052759. Epub 2012 Dec 26. [Article]

Transporters

Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
General Function
Na(+)-independent transporter that mediates the cellular uptake of a broad range of organic anions such as the endogenous bile salts cholate and deoxycholate, either in their unconjugated or conjugated forms (taurocholate and glycocholate), at the plasmam membrane (PubMed:19129463, PubMed:7557095). Responsible for intestinal absorption of bile acids (By similarity). Transports dehydroepiandrosterone 3-sulfate (DHEAS), a major circulating steroid secreted by the adrenal cortex, as well as estrone 3-sulfate and 17beta-estradiol 17-O-(beta-D-glucuronate) (PubMed:11159893, PubMed:12568656, PubMed:19129463, PubMed:23918469, PubMed:25560245, PubMed:9539145). Mediates apical uptake of all-trans-retinol (atROL) across human retinal pigment epithelium, which is essential to maintaining the integrity of the visual cycle and thus vision (PubMed:25560245). Involved in the uptake of clinically used drugs (PubMed:17301733, PubMed:20686826, PubMed:27777271). Capable of thyroid hormone transport (both T3 or 3,3',5'-triiodo-L-thyronine, and T4 or L-tyroxine) (PubMed:19129463, PubMed:20358049). Also transports prostaglandin E2 (PubMed:19129463). Plays roles in blood-brain and -cerebrospinal fluid barrier transport of organic anions and signal mediators, and in hormone uptake by neural cells (By similarity). May also play a role in the reuptake of neuropeptides such as substance P/TAC1 and vasoactive intestinal peptide/VIP released from retinal neurons (PubMed:25132355). May play an important role in plasma and tissue distribution of the structurally diverse chemotherapeutic drugs methotrexate and paclitaxel (PubMed:23243220). Shows a pH-sensitive substrate specificity which may be ascribed to the protonation state of the binding site and leads to a stimulation of substrate transport in an acidic microenvironment (PubMed:19129463). Hydrogencarbonate/HCO3(-) acts as the probable counteranion that exchanges for organic anions (PubMed:19129463). May contribute to regulate the transport of organic compounds in testis across the blood-testis-barrier (Probable)
Specific Function
bile acid transmembrane transporter activity
Gene Name
SLCO1A2
Uniprot ID
P46721
Uniprot Name
Solute carrier organic anion transporter family member 1A2
Molecular Weight
74144.105 Da
References
  1. Bossuyt X, Muller M, Hagenbuch B, Meier PJ: Polyspecific drug and steroid clearance by an organic anion transporter of mammalian liver. J Pharmacol Exp Ther. 1996 Mar;276(3):891-6. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
General Function
Translocates drugs and phospholipids across the membrane (PubMed:2897240, PubMed:35970996, PubMed:8898203, PubMed:9038218). Catalyzes the flop of phospholipids from the cytoplasmic to the exoplasmic leaflet of the apical membrane. Participates mainly to the flop of phosphatidylcholine, phosphatidylethanolamine, beta-D-glucosylceramides and sphingomyelins (PubMed:8898203). Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells (PubMed:2897240, PubMed:35970996, PubMed:9038218)
Specific Function
ABC-type xenobiotic transporter activity
Gene Name
ABCB1
Uniprot ID
P08183
Uniprot Name
ATP-dependent translocase ABCB1
Molecular Weight
141477.255 Da
References
  1. Yates CR, Chang C, Kearbey JD, Yasuda K, Schuetz EG, Miller DD, Dalton JT, Swaan PW: Structural determinants of P-glycoprotein-mediated transport of glucocorticoids. Pharm Res. 2003 Nov;20(11):1794-803. [Article]
  2. Matoulkova P, Pavek P, Maly J, Vlcek J: Cytochrome P450 enzyme regulation by glucocorticoids and consequences in terms of drug interaction. Expert Opin Drug Metab Toxicol. 2014 Mar;10(3):425-35. doi: 10.1517/17425255.2014.878703. Epub 2014 Jan 23. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
General Function
Functions as an organic anion/dicarboxylate exchanger that couples organic anion uptake indirectly to the sodium gradient (PubMed:14586168, PubMed:15644426, PubMed:15846473, PubMed:16455804, PubMed:31553721). Transports organic anions such as estrone 3-sulfate (E1S) and urate in exchange for dicarboxylates such as glutarate or ketoglutarate (2-oxoglutarate) (PubMed:14586168, PubMed:15846473, PubMed:15864504, PubMed:22108572, PubMed:23832370). Plays an important role in the excretion of endogenous and exogenous organic anions, especially from the kidney and the brain (PubMed:11306713, PubMed:14586168, PubMed:15846473). E1S transport is pH- and chloride-dependent and may also involve E1S/cGMP exchange (PubMed:26377792). Responsible for the transport of prostaglandin E2 (PGE2) and prostaglandin F2(alpha) (PGF2(alpha)) in the basolateral side of the renal tubule (PubMed:11907186). Involved in the transport of neuroactive tryptophan metabolites kynurenate and xanthurenate (PubMed:22108572, PubMed:23832370). Functions as a biopterin transporters involved in the uptake and the secretion of coenzymes tetrahydrobiopterin (BH4), dihydrobiopterin (BH2) and sepiapterin to urine, thereby determining baseline levels of blood biopterins (PubMed:28534121). May be involved in the basolateral transport of steviol, a metabolite of the popular sugar substitute stevioside (PubMed:15644426). May participate in the detoxification/ renal excretion of drugs and xenobiotics, such as the histamine H(2)-receptor antagonists fexofenadine and cimetidine, the antibiotic benzylpenicillin (PCG), the anionic herbicide 2,4-dichloro-phenoxyacetate (2,4-D), the diagnostic agent p-aminohippurate (PAH), the antiviral acyclovir (ACV), and the mycotoxin ochratoxin (OTA), by transporting these exogenous organic anions across the cell membrane in exchange for dicarboxylates such as 2-oxoglutarate (PubMed:11669456, PubMed:15846473, PubMed:16455804). Contributes to the renal uptake of potent uremic toxins (indoxyl sulfate (IS), indole acetate (IA), hippurate/N-benzoylglycine (HA) and 3-carboxy-4-methyl-5-propyl-2-furanpropionate (CMPF)), pravastatin, PCG, E1S and dehydroepiandrosterone sulfate (DHEAS), and is partly involved in the renal uptake of temocaprilat (an angiotensin-converting enzyme (ACE) inhibitor) (PubMed:14675047). May contribute to the release of cortisol in the adrenals (PubMed:15864504). Involved in one of the detoxification systems on the choroid plexus (CP), removes substrates such as E1S or taurocholate (TC), PCG, 2,4-D and PAH, from the cerebrospinal fluid (CSF) to the blood for eventual excretion in urine and bile (By similarity). Also contributes to the uptake of several other organic compounds such as the prostanoids prostaglandin E(2) and prostaglandin F(2-alpha), L-carnitine, and the therapeutic drugs allopurinol, 6-mercaptopurine (6-MP) and 5-fluorouracil (5-FU) (By similarity). Mediates the transport of PAH, PCG, and the statins pravastatin and pitavastatin, from the cerebrum into the blood circulation across the blood-brain barrier (BBB). In summary, plays a role in the efflux of drugs and xenobiotics, helping reduce their undesired toxicological effects on the body (By similarity)
Specific Function
organic anion transmembrane transporter activity
Gene Name
SLC22A8
Uniprot ID
Q8TCC7
Uniprot Name
Organic anion transporter 3
Molecular Weight
59855.585 Da
References
  1. VanWert AL, Gionfriddo MR, Sweet DH: Organic anion transporters: discovery, pharmacology, regulation and roles in pathophysiology. Biopharm Drug Dispos. 2010 Jan;31(1):1-71. doi: 10.1002/bdd.693. [Article]

Drug created at June 13, 2005 13:24 / Updated at August 26, 2024 19:24