Identification
Name Adapalene
Accession Number DB00210 (APRD00780)
Type small molecule
Description Adapalene is a topical retinoid primarily used in the treatment of acne and is also used (off-label) to treat keratosis pilaris as well as other skin conditions. It is currently marketed by Galderma under the trade names Differin in some countries, and Adaferin in India. [Wikipedia]
Structure
Categories (*)
Molecular Weight 412.5201
Groups approved
Monoisotopic Weight 412.203844762
Pharmacology
Indication For the topical treatment of comedo, papular and pustular acne (acne vulgaris) of the face, chest or back.
Mechanism of action Mechanistically, adapalene binds to specific retinoic acid nuclear receptors (gamma and beta) and retinoid X receptors but does not bind to the cytosolic receptor protein. Although the exact mode of action of adapalene is unknown, it is suggested that topical adapalene may normalize the differentiation of follicular epithelial cells resulting in decreased microcomedone formation.
Absorption Absorption of adapalene through human skin is low. Only trace amounts (<0.25 ng/mL) of parent substance have been found in the plasma of acne patients following chronic topical application of adapalene in controlled clinical trials
Protein binding Not Available
Biotransformation Metabolized mainly by O-demethylation, hydroxylation and conjugation, and excretion is primarily by the biliary route.
Route of elimination Excretion appears to be primarily by the biliary route.
Toxicity The acute oral toxicity of adapalene in mice and rats is greater than 10 mL/kg. Chronic ingestion of the drug may lead to the same side effects as those associated with excessive oral intake of Vitamin A.
Affected organisms
  • Humans and other mammals
Interactions
Drug Interactions Not Available
Food Interactions Not Available
Retinoic acid receptor gamma-1
Name Retinoic acid receptor gamma-1
Gene Name RARG
Pharmacological action yes
Actions agonist
References
  • Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. - Pubmed
  • Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. - Pubmed
  • Berman HM, Westbrook J, Feng Z, Gilliland G, Bhat TN, Weissig H, Shindyalov IN, Bourne PE: The Protein Data Bank. Nucleic Acids Res. 2000 Jan 1;28(1):235-42. - Pubmed
DTHybrid score 1.4313
Retinoic acid receptor beta
Name Retinoic acid receptor beta
Gene Name RARB
Pharmacological action yes
Actions agonist
References
  • Shroot B, Michel S: Pharmacology and chemistry of adapalene. J Am Acad Dermatol. 1997 Jun;36(6 Pt 2):S96-103. - Pubmed
  • Shroot B, Michel S, Allec J, Chatelus A, Wagner N: A new concept of drug delivery for acne. Dermatology. 1998;196(1):165-70. - Pubmed
  • Michel S, Jomard A, Demarchez M: Pharmacology of adapalene. Br J Dermatol. 1998 Oct;139 Suppl 52:3-7. - Pubmed
  • Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. - Pubmed
DTHybrid score 1.052
Retinoic acid receptor RXR-gamma
Name Retinoic acid receptor RXR-gamma
Gene Name RXRG
Pharmacological action yes
Actions agonist
References
  • Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. - Pubmed
  • Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. - Pubmed
  • Kim MJ, Ciletti N, Michel S, Reichert U, Rosenfield RL: The role of specific retinoid receptors in sebocyte growth and differentiation in culture. J Invest Dermatol. 2000 Feb;114(2):349-53. - Pubmed
DTHybrid score 0.6249
Retinoic acid receptor RXR-beta
Name Retinoic acid receptor RXR-beta
Gene Name RXRB
Pharmacological action yes
Actions agonist
References
  • Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. - Pubmed
  • Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. - Pubmed
  • Kim MJ, Ciletti N, Michel S, Reichert U, Rosenfield RL: The role of specific retinoid receptors in sebocyte growth and differentiation in culture. J Invest Dermatol. 2000 Feb;114(2):349-53. - Pubmed
DTHybrid score 0.9347
Retinoic acid receptor alpha
Name Retinoic acid receptor alpha
Gene Name RARA
Pharmacological action unknown
Actions agonist
References
  • Shroot B, Michel S: Pharmacology and chemistry of adapalene. J Am Acad Dermatol. 1997 Jun;36(6 Pt 2):S96-103. - Pubmed
  • Griffiths CE, Ancian P, Humphries J, Poncet M, Rizova E, Michel S, Clucas A: Adapalene 0.1% gel and adapalene 0.1% cream stimulate retinoic acid receptor mediated gene transcription without significant irritative effects in the skin of healthy human volunteers. Br J Dermatol. 1998 Oct;139 Suppl 52:12-6. - Pubmed
  • Michel S, Jomard A, Demarchez M: Pharmacology of adapalene. Br J Dermatol. 1998 Oct;139 Suppl 52:3-7. - Pubmed
  • Shroot B, Michel S, Allec J, Chatelus A, Wagner N: A new concept of drug delivery for acne. Dermatology. 1998;196(1):165-70. - Pubmed
  • Kim MJ, Ciletti N, Michel S, Reichert U, Rosenfield RL: The role of specific retinoid receptors in sebocyte growth and differentiation in culture. J Invest Dermatol. 2000 Feb;114(2):349-53. - Pubmed
DTHybrid score 1.0484
Retinoic acid receptor RXR-alpha
Name Retinoic acid receptor RXR-alpha
Gene Name RXRA
Pharmacological action no
Actions other/unknown
References
  • Bernard BA: Adapalene, a new chemical entity with retinoid activity. Skin Pharmacol. 1993;6 Suppl 1:61-9. - Pubmed
  • Kim MJ, Ciletti N, Michel S, Reichert U, Rosenfield RL: The role of specific retinoid receptors in sebocyte growth and differentiation in culture. J Invest Dermatol. 2000 Feb;114(2):349-53. - Pubmed
DTHybrid score 0.8036
Id Partner name Gene Name Score
564 Cellular retinoic acid-binding protein 1 CRABP1 0.2422
6283 Oxysterols receptor LXR-alpha NR1H3 0.2212
5934 Cytochrome P450 26A1 CYP26A1 0.2188
6241 Nuclear receptor coactivator 2 NCOA2 0.1746
331 Retinol-binding protein I, cellular RBP1 0.1294
859 Cellular retinoic acid-binding protein 2 CRABP2 0.1245
4924 Cytochrome P450 2C8 CYP2C8 0.0644
3811 Cytochrome P450 19A1 CYP19A1 0.0643
238 Peroxisome proliferator-activated receptor gamma PPARG 0.0594
587 Serum albumin ALB 0.0571
4757 Cytochrome P450 2C9 CYP2C9 0.0524
6228 Nuclear receptor coactivator 1 NCOA1 0.0442
6350 Nuclear receptor subfamily 1 group I member 3 NR1I3 0.0432
4512 Cytochrome P450 3A4 CYP3A4 0.0414
4200 Cytochrome P450 1A2 CYP1A2 0.04
1588 Multidrug resistance protein 1 ABCB1 0.0385
6105 3-oxo-5-beta-steroid 4-dehydrogenase AKR1D1 0.0333
719 Retinoic acid receptor responder protein 1 RARRES1 0.0325
770 Retinoic acid-induced protein 3 GPRC5A 0.0325
84 Nuclear receptor 0B1 NR0B1 0.0261
569 Retinal dehydrogenase 2 ALDH1A2 0.0253
2907 Oxysterols receptor LXR-beta NR1H2 0.0242
611 Retinal dehydrogenase 1 ALDH1A1 0.0237
468 Cytochrome P450 4A11 CYP4A11 0.0177
1284 Nuclear receptor subfamily 1 group I member 2 NR1I2 0.0176
6106 Cytochrome P450 2C18 CYP2C18 0.0145
5718 Cytochrome P450 2A6 CYP2A6 0.0119
6024 Cytochrome P450 1A1 CYP1A1 0.0114
6177 UDP-glucuronosyltransferase 1-10 UGT1A10 0.0112
6030 Cytochrome P450 2B6 CYP2B6 0.0108
6107 Cytochrome P450 3A7 CYP3A7 0.0107
4118 Cytochrome P450 3A5 CYP3A5 0.0101
6176 UDP-glucuronosyltransferase 1-3 UGT1A3 0.009
6018 UDP-glucuronosyltransferase 1-9 UGT1A9 0.0087
6178 UDP-glucuronosyltransferase 2B7 UGT2B7 0.0084
290 Prostaglandin G/H synthase 2 PTGS2 0.0072
20 Prostaglandin G/H synthase 1 PTGS1 0.0068
1729 Solute carrier family 22 member 6 SLC22A6 0.0063