Page last updated: 2024-10-24

cellular response to UV-A

Definition

Target type: biologicalprocess

Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a UV-A radiation stimulus. UV-A radiation (UV-A light) spans the wavelengths 315 to 400 nm. [GOC:mah]

Cellular response to UV-A is a complex process involving multiple signaling pathways and molecular mechanisms that ultimately lead to the repair of DNA damage and the maintenance of cellular homeostasis. UV-A radiation, with wavelengths ranging from 315 to 400 nm, penetrates deeper into the skin than UVB and can cause a variety of cellular effects.

Upon exposure to UV-A, various cellular components, including DNA, proteins, and lipids, can be directly or indirectly affected. The primary mechanism of UV-A-induced DNA damage is the generation of reactive oxygen species (ROS), particularly singlet oxygen (¹O2). These ROS can directly damage DNA, leading to the formation of various lesions, including cyclobutane pyrimidine dimers (CPDs) and 6-4 photoproducts (6-4PPs). However, UV-A is less efficient at directly inducing CPDs and 6-4PPs compared to UVB.

UV-A can also cause indirect damage to DNA through the activation of signaling pathways involving the MAPK (mitogen-activated protein kinase) and NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) pathways. These pathways are activated by the generation of ROS and the activation of various signaling molecules, such as p38 MAPK and JNK (c-Jun N-terminal kinase). Activation of these pathways leads to the expression of various genes involved in DNA repair, cell cycle arrest, and apoptosis.

One of the key mechanisms involved in cellular response to UV-A is DNA repair. Cells have evolved sophisticated mechanisms to repair UV-A-induced DNA damage. The major DNA repair pathways involved in repairing UV-A-induced damage include nucleotide excision repair (NER), base excision repair (BER), and mismatch repair (MMR). NER is the primary pathway responsible for repairing CPDs and 6-4PPs, which are the most prevalent UV-A-induced DNA lesions. BER is involved in repairing oxidative damage to DNA bases caused by ROS generated by UV-A.

In addition to DNA repair, cells can also activate other responses to mitigate the damaging effects of UV-A, including cell cycle arrest and apoptosis. Cell cycle arrest allows time for DNA repair to occur before cells progress through the cell cycle and potentially replicate damaged DNA, leading to mutations. Apoptosis, or programmed cell death, eliminates severely damaged cells, preventing the propagation of damaged cells.

Cellular response to UV-A is a dynamic process that involves multiple cellular signaling pathways and molecular mechanisms. The specific response of a cell to UV-A depends on various factors, including the dose of UV-A exposure, the type of cell, and the cell's repair capacity. Understanding the intricate mechanisms involved in cellular response to UV-A is crucial for developing strategies to prevent and treat UV-A-induced skin damage and cancer.'
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Proteins (6)

ProteinDefinitionTaxonomy
Peptidyl-prolyl cis-trans isomerase DA eukaryotic-type peptidyl-prolyl cis-trans isomerase D that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q08752]Homo sapiens (human)
Matrix metalloproteinase-9A matrix metalloproteinase-9 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P14780]Homo sapiens (human)
NeprilysinA neprilysin that is encoded in the genome of human. [PRO:WCB, UniProtKB:P08473]Homo sapiens (human)
Stromelysin-1A stromelysin-1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P08254]Homo sapiens (human)
72 kDa type IV collagenaseA 72 kDa type IV collagenase that is encoded in the genome of human. [PRO:DNx, UniProtKB:P08253]Homo sapiens (human)
Interstitial collagenaseAn interstitial collagenase that is encoded in the genome of human. [PRO:DNx, UniProtKB:P03956]Homo sapiens (human)

Compounds (152)

CompoundDefinitionClassesRoles
2,3-dihydroxybenzoic acid2,3-dihydroxybenzoic acid : A dihydroxybenzoic acid that is benzoic acid substituted by hydroxy groups at positions 2 and 3. It occurs naturally in Phyllanthus acidus and in the aquatic fern Salvinia molesta.

2,3-dihydroxybenzoic acid: RN given refers to parent cpd

dihydroxybenzoic acid : Any member of the class of hydroxybenzoic acids carrying two phenolic hydroxy groups on the benzene ring and its derivatives.
dihydroxybenzoic acidhuman xenobiotic metabolite;
plant metabolite
protocatechuic acid3,4-dihydroxybenzoic acid : A dihydroxybenzoic acid in which the hydroxy groups are located at positions 3 and 4.

protocatechuic acid: RN given refers to parent cpd; structure
catechols;
dihydroxybenzoic acid
antineoplastic agent;
EC 1.1.1.25 (shikimate dehydrogenase) inhibitor;
EC 1.14.11.2 (procollagen-proline dioxygenase) inhibitor;
human xenobiotic metabolite;
plant metabolite
catecholcatecholsallelochemical;
genotoxin;
plant metabolite
salicylic acidScalp: The outer covering of the calvaria. It is composed of several layers: SKIN; subcutaneous connective tissue; the occipitofrontal muscle which includes the tendinous galea aponeurotica; loose connective tissue; and the pericranium (the PERIOSTEUM of the SKULL).monohydroxybenzoic acidalgal metabolite;
antifungal agent;
antiinfective agent;
EC 1.11.1.11 (L-ascorbate peroxidase) inhibitor;
keratolytic drug;
plant hormone;
plant metabolite
gallic acidgallate : A trihydroxybenzoate that is the conjugate base of gallic acid.trihydroxybenzoic acidantineoplastic agent;
antioxidant;
apoptosis inducer;
astringent;
cyclooxygenase 2 inhibitor;
EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor;
geroprotector;
human xenobiotic metabolite;
plant metabolite
beta-resorcylic acidbeta-resorcylic acid: RN given refers to parent cpd; structure
oxyquinolineOxyquinoline: An antiseptic with mild fungistatic, bacteriostatic, anthelmintic, and amebicidal action. It is also used as a reagent and metal chelator, as a carrier for radio-indium for diagnostic purposes, and its halogenated derivatives are used in addition as topical anti-infective agents and oral antiamebics.

quinolin-8-ol : A monohydroxyquinoline that is quinoline substituted by a hydroxy group at position 8. Its fungicidal properties are used for the control of grey mould on vines and tomatoes.
monohydroxyquinolineantibacterial agent;
antifungal agrochemical;
antiseptic drug;
iron chelator
acetohydroxamic acidacetohydroxamic acid : A member of the class of acetohydroxamic acids that is acetamide in which one of the amino hydrogens has been replaced by a hydroxy group.

acetohydroxamic acid: urease inhibitor

N-hydroxyacetimidic acid : A carbohydroximic acid consisting of acetimidic acid having a hydroxy group attached to the imide nitrogen.

oxime : Compounds of structure R2C=NOH derived from condensation of aldehydes or ketones with hydroxylamine. Oximes from aldehydes may be called aldoximes; those from ketones may be called ketoximes.
acetohydroxamic acids;
carbohydroximic acid
algal metabolite;
EC 3.5.1.5 (urease) inhibitor
busulfanmethanesulfonate esteralkylating agent;
antineoplastic agent;
carcinogenic agent;
insect sterilant;
teratogenic agent
N-[4-(4-morpholinyl)butyl]-2-benzofurancarboxamideCL82198: a selective inhibitor of MMP13benzofurans
thiorphanThiorphan: A potent inhibitor of membrane metalloendopeptidase (ENKEPHALINASE). Thiorphan potentiates morphine-induced ANALGESIA and attenuates naloxone-precipitated withdrawal symptoms.N-acyl-amino acid
doxazosindoxazosin : A member of the class of quinazolines that is quinazoline substituted by an amino group at position 4, methoxy groups at positions 6 and 7 and a piperazin-1-yl group at position 2 which in turn is substituted by a 2,3-dihydro-1,4-benzodioxin-2-ylcarbonyl group at position 4. An antihypertensive agent, it is used in the treatment of high blood pressure.

Doxazosin: A prazosin-related compound that is a selective alpha-1-adrenergic blocker.
aromatic amine;
benzodioxine;
monocarboxylic acid amide;
N-acylpiperazine;
N-arylpiperazine;
quinazolines
alpha-adrenergic antagonist;
antihyperplasia drug;
antihypertensive agent;
antineoplastic agent;
vasodilator agent
econazole1-{2-(4-chlorobenzyloxy)-2-(2,4-dichlorophenyl)ethyl}imidazole : A member of the class of imidazoles that is 1-(2,4-dichlorophenyl)-2-(imidazol-1-yl)ethanol in which the hydroxyl hydrogen is replaced by a 4-chlorobenzyl group.

econazole : A racemate composed of equimolar amounts of (R)- and (S)-econazole. Used (as its nitrate salt) to treat skin infections such as athlete's foot, jock itch, ringworm and other fungal skin infections.

Econazole: An imidazole derivative that is commonly used as a topical antifungal agent.
dichlorobenzene;
ether;
imidazoles;
monochlorobenzenes
2,5-dihydroxybenzoic acid2,5-dihydroxybenzoic acid : A dihydroxybenzoic acid having the two hydroxy groups at the 2- and 5-positions.

2,5-dihydroxybenzoic acid: RN given refers to parent cpd; a oxidative product of saligenin
dihydroxybenzoic acidEC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor;
fungal metabolite;
human metabolite;
MALDI matrix material;
mouse metabolite
hydroxyureaone-carbon compound;
ureas
antimetabolite;
antimitotic;
antineoplastic agent;
DNA synthesis inhibitor;
EC 1.17.4.1 (ribonucleoside-diphosphate reductase) inhibitor;
genotoxin;
immunomodulator;
radical scavenger;
teratogenic agent
losartanlosartan : A biphenylyltetrazole where a 1,1'-biphenyl group is attached at the 5-position and has an additional trisubstituted imidazol-1-ylmethyl group at the 4'-position

Losartan: An antagonist of ANGIOTENSIN TYPE 1 RECEPTOR with antihypertensive activity due to the reduced pressor effect of ANGIOTENSIN II.
biphenylyltetrazole;
imidazoles
angiotensin receptor antagonist;
anti-arrhythmia drug;
antihypertensive agent;
endothelin receptor antagonist
way 151693
nafamostatnafamostat: inhibitor of trypsin, plasmin, pancreatic kallikrein, plasma kallikrein & thrombin; strongly inhibits esterolytic activities of C1r & C1 esterase complement-mediated hemolysis; antineoplasticbenzoic acids;
guanidines
nimesulidenimesulide : An aromatic ether having phenyl and 2-methylsulfonamido-5-nitrophenyl as the two aryl groups.

nimesulide: structure
aromatic ether;
C-nitro compound;
sulfonamide
cyclooxygenase 2 inhibitor;
non-steroidal anti-inflammatory drug
prazosinprazosin : A member of the class of piperazines that is piperazine substituted by a furan-2-ylcarbonyl group and a 4-amino-6,7-dimethoxyquinazolin-2-yl group at positions 1 and 4 respectively.

Prazosin: A selective adrenergic alpha-1 antagonist used in the treatment of HEART FAILURE; HYPERTENSION; PHEOCHROMOCYTOMA; RAYNAUD DISEASE; PROSTATIC HYPERTROPHY; and URINARY RETENTION.
aromatic ether;
furans;
monocarboxylic acid amide;
piperazines;
quinazolines
alpha-adrenergic antagonist;
antihypertensive agent;
EC 3.4.21.26 (prolyl oligopeptidase) inhibitor
salicylamidesalamide: a major impurity of hydrochlorothiazide; structure in first sourcephenols;
salicylamides
antirheumatic drug;
non-narcotic analgesic
secobarbitalsecobarbital : A member of the class of barbiturates that is barbituric acid in which the hydrogens at position 5 are substituted by prop-2-en-1-yl and pentan-2-yl groups.

Secobarbital: A barbiturate that is used as a sedative. Secobarbital is reported to have no anti-anxiety activity.
barbituratesanaesthesia adjuvant;
GABA modulator;
sedative
sulfasalazinesulfasalazine : An azobenzene consisting of diphenyldiazene having a carboxy substituent at the 4-position, a hydroxy substituent at the 3-position and a 2-pyridylaminosulphonyl substituent at the 4'-position.

Sulfasalazine: A drug that is used in the management of inflammatory bowel diseases. Its activity is generally considered to lie in its metabolic breakdown product, 5-aminosalicylic acid (see MESALAMINE) released in the colon. (From Martindale, The Extra Pharmacopoeia, 30th ed, p907)
tryptophantryptophan : An alpha-amino acid that is alanine bearing an indol-3-yl substituent at position 3.

Tryptophan: An essential amino acid that is necessary for normal growth in infants and for NITROGEN balance in adults. It is a precursor of INDOLE ALKALOIDS in plants. It is a precursor of SEROTONIN (hence its use as an antidepressant and sleep aid). It can be a precursor to NIACIN, albeit inefficiently, in mammals.
erythrose 4-phosphate/phosphoenolpyruvate family amino acid;
L-alpha-amino acid;
L-alpha-amino acid zwitterion;
proteinogenic amino acid;
tryptophan;
tryptophan zwitterion
antidepressant;
Escherichia coli metabolite;
human metabolite;
micronutrient;
mouse metabolite;
nutraceutical;
plant metabolite;
Saccharomyces cerevisiae metabolite
3-mercaptopropionic acid3-mercaptopropanoic acid : A mercaptopropanoic acid that is propanoic acid carrying a sulfanyl group at position 3.

3-Mercaptopropionic Acid: An inhibitor of glutamate decarboxylase. It decreases the GAMMA-AMINOBUTYRIC ACID concentration in the brain, thereby causing convulsions.
mercaptopropanoic acidalgal metabolite
4-phenylphenol4-phenylphenol: RN given refers to cpd without isomeric designation

biphenyl-4-ol : A member of the class of hydroxybiphenyls that is biphenyl carrying a hydroxy group at position 4.
hydroxybiphenyls
4,4'-dihydroxybiphenylbiphenyl-4,4'-diol : A member of the class of hydroxybiphenyls that is biphenyl with hydroxy groups at positions 4 and 4'.hydroxybiphenyls
veratric acid3,4-dimethoxybenzoic acid : A member of the class of benzoic acids that is benzoic acid substituted by methoxy groups at positions 2 and 3.

veratric acid: RN given refers to parent cpd; structure
benzoic acidsallergen;
plant metabolite
methyl gallatemethyl 3,4,5-trihydroxybenzoate : A gallate ester obtained by the formal condensation of gallic acid with methanol. It exhibits anti-oxidant, anti-tumor, anti-microbial and anti-inflammatory properties.

methyl gallate: has both immunosuppressive and phytogenic antineoplastic activities; isolated from Acer saccharinum
gallate esteranti-inflammatory agent;
antioxidant;
plant metabolite
3,4,5-trimethoxybenzoic acid3,4,5-trimethoxybenzoic acid : A benzoic acid derivative carrying 3-, 4- and 5-methoxy substituents.

3,4,5-trimethoxybenzoic acid: RN given refers to parent cpd; structure
benzoic acids;
methoxybenzenes
human urinary metabolite;
human xenobiotic metabolite;
plant metabolite
D-tryptophanD-alpha-amino acid;
tryptophan;
tryptophan zwitterion
bacterial metabolite
benzohydroxamic acid
syringic acidsyringic acid : A dimethoxybenzene that is 3,5-dimethyl ether derivative of gallic acid.

syringic acid: RN given refers to parent cpd; structure in third source
benzoic acids;
dimethoxybenzene;
phenols
plant metabolite
tropolonetropolone : A cyclic ketone that is cyclohepta-2,4,6-trien-1-one substituted by a hydroxy group at position 2. It is a toxin produced by the agricultural pathogen Burkholderia plantarii.

Tropolone: A seven-membered aromatic ring compound. It is structurally related to a number of naturally occurring antifungal compounds (ANTIFUNGAL AGENTS).
alpha-hydroxy ketone;
cyclic ketone;
enol
bacterial metabolite;
fungicide;
toxin
n-hydroxyurethaneN-hydroxyurethane: structure
4-phenylpyridinephenylpyridine
2-acetylpyridine2-acetylpyridine: structure in first sourcearomatic ketone
methylene diphosphonatemedronic acid : A 1,1-bis(phosphonic acid) consisting of methane substituted by two phosphonic acid groups.1,1-bis(phosphonic acid)bone density conservation agent;
chelator
clodronic acidclodronic acid : An organochlorine compound that is methylene chloride in which both hydrogens are replaced by phosphonic acid groups. It inhibits bone resorption and soft tissue calcification, and is used (often as the disodium salt tetrahydrate) as an adjunct in the treatment of severe hypercalcaemia associated with malignancy, and in the management of osteolytic lesions and bone pain associated with skeletal metastases.

Clodronic Acid: A diphosphonate which affects calcium metabolism. It inhibits bone resorption and soft tissue calcification.
1,1-bis(phosphonic acid);
one-carbon compound;
organochlorine compound
antineoplastic agent;
bone density conservation agent
daunorubicinanthracycline : Anthracyclines are polyketides that have a tetrahydronaphthacenedione ring structure attached by a glycosidic linkage to the amino sugar daunosamine.

daunorubicin : A natural product found in Actinomadura roseola.

Daunorubicin: A very toxic anthracycline aminoglycoside antineoplastic isolated from Streptomyces peucetius and others, used in treatment of LEUKEMIA and other NEOPLASMS.
aminoglycoside antibiotic;
anthracycline;
p-quinones;
tetracenequinones
antineoplastic agent;
bacterial metabolite
captoprilcaptopril : A L-proline derivative in which L-proline is substituted on nitrogen with a (2S)-2-methyl-3-sulfanylpropanoyl group. It is used as an anti-hypertensive ACE inhibitor drug.

Captopril: A potent and specific inhibitor of PEPTIDYL-DIPEPTIDASE A. It blocks the conversion of ANGIOTENSIN I to ANGIOTENSIN II, a vasoconstrictor and important regulator of arterial blood pressure. Captopril acts to suppress the RENIN-ANGIOTENSIN SYSTEM and inhibits pressure responses to exogenous angiotensin.
alkanethiol;
L-proline derivative;
N-acylpyrrolidine;
pyrrolidinemonocarboxylic acid
antihypertensive agent;
EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor
irinotecancarbamate ester;
delta-lactone;
N-acylpiperidine;
pyranoindolizinoquinoline;
ring assembly;
tertiary alcohol;
tertiary amino compound
antineoplastic agent;
apoptosis inducer;
EC 5.99.1.2 (DNA topoisomerase) inhibitor;
prodrug
tiludronic acidtiludronic acid: a bone resorption inhibitor; an antihypercalcemic agent; used in the tratment of Paget's disease; used in the treatment and prevention of osteoporosis; structure given in first sourceorganochlorine compound
epigallocatechin gallate(-)-epigallocatechin 3-gallate : A gallate ester obtained by the formal condensation of gallic acid with the (3R)-hydroxy group of (-)-epigallocatechin.

epigallocatechin gallate: a steroid 5alpha-reductase inhibitor and antimutagen in green tea (Camellia sinensis)
flavans;
gallate ester;
polyphenol
antineoplastic agent;
antioxidant;
apoptosis inducer;
geroprotector;
Hsp90 inhibitor;
neuroprotective agent;
plant metabolite
secoisolariciresinol(-)-secoisolariciresinol : An enantiomer of secoisolariciresinol having (-)-(2R,3R)-configuration.

secoisolariciresinol : A lignan that is butane-1,4-diol in which the 2 and 3 positions are substituted by 4-hydroxy-3-methoxybenzyl groups

secoisolariciresinol: RN given refers to ((R-(R*,R*))-isomer); RN for cpd without isomeric designation not available 8/89; precursor of lignans found in human urine; structure given in first source
secoisolariciresinolantidepressant;
phytoestrogen;
plant metabolite
5,5'-methylenedisalicylic acid5,5'-methylenedisalicylic acid: inhibits attachment of ribosomes to microsomal membranes; RN given refers to parent cpd; structure in first source & Merck Index, 9th ed, #5934
4,4,4-trifluoro-1-phenyl-1,3-butanedione4,4,4-trifluoro-1-phenyl-1,3-butanedione: can trap reactive metabolites of carcinogens
n-acetyltyrosineN-acetyl-L-tyrosine : An N-acetyltyrosine in which the chiral centre has L configuration.N-acetyltyrosine;
N-acyl-L-tyrosine
biomarker;
EC 2.1.1.4 (acetylserotonin O-methyltransferase) inhibitor;
human urinary metabolite
zoledronic acidzoledronic acid : An imidazole compound having a 2,2-bis(phosphono)-2-hydroxyethane-1-yl substituent at the 1-position.

Zoledronic Acid: An imidobisphosphonate inhibitor of BONE RESORPTION that is used for the treatment of malignancy-related HYPERCALCEMIA; OSTEITIS DEFORMANS; and OSTEOPOROSIS.
1,1-bis(phosphonic acid);
imidazoles
bone density conservation agent
piloty's acidPiloty's acid: structure in first sourcesulfonamide
carbobenzoxyphenylalaninecarbobenzoxyphenylalanine: RN given refers to (L-Phe)-isomer
aminoquinuride
ubenimexubenimex: growth inhibitor
tert-butyloxycarbonyltryptophantert-butyloxycarbonyltryptophan: RN given refers to (L)-isomerindolyl carboxylic acid
8-mercaptoquinoline8-mercaptoquinoline: structure given in first source
benzyloxycarbonyltryptophanbenzyloxycarbonyltryptophan: receptor antagonist for peptides from gastrin family; RN given refers to (L)-isomer
marimastatmarimastat : A secondary carboxamide resulting from the foraml condensation of the carboxy group of (2R)-2-[(1S)-1-hydroxy-2-(hydroxyamino)-2-oxoethyl]-4-methylpentanoic acid with the alpha-amino group of N,3-dimethyl-L-valinamide.

marimastat: a matrix metalloproteinase inhibitor active in patients with advanced carcinoma of the pancreas, prostate, or ovary
hydroxamic acid;
secondary carboxamide
antineoplastic agent;
matrix metalloproteinase inhibitor
sq 28603SQ 28603: a selective neutral endopeptidase inhibitor
kelatorphankelatorphan: inhibitor of enkephalin metabolism; structure given in first source
(3-(n-hydroxy)carboxamido-2-benzylpropanoyl)glycine
n-(2-isobutyl-3-(n'-hydroxycarbonylamido)propanoyl)-o-methyltyrosinemethylamideN-(2-isobutyl-3-(N'-hydroxycarbonylamido)propanoyl)-O-methyltyrosinemethylamide: RN given refers to the (S-(R*,S*))-isomer
2-(4-morpholinyl)-4h-1-benzopyran-4-one2-(4-morpholinyl)-4H-1-benzopyran-4-one: an aminochromone; exhibits both antiproliferative and antichemotactic activity in vitro
ilomastatCS 610: matrix metalloproteinase inhibitor; structure in first source

ilomastat : An N-acyl-amino acid obtained by formal condensation of the carboxy group of (2R)-2-[2-(hydroxyamino)-2-oxoethyl]-4-methylpentanoic acid with the amino group of N-methyl-L-tryptophanamide. A cell permeable broad-spectrum matrix metalloproteinase (MMP) inhibitor
hydroxamic acid;
L-tryptophan derivative;
N-acyl-amino acid
anti-inflammatory agent;
antibacterial agent;
antineoplastic agent;
EC 3.4.24.24 (gelatinase A) inhibitor;
neuroprotective agent
cgs 26303CGS 26303: a potent non-peptidic inhibitor of neutral endopeptidase capable of protecting atrial natriuretic peptide from enzymatic degradation; structure given in first source
bb3497BB3497: peptide deformylase inhibitor; structure in first source
procyanidin C1procyanidin C1 : A proanthocyanidin consisting of three (-)-epicatechin units joined by two successive (4beta->8)-linkages.

procyanidin trimer C1: a flavonoid found in multiple plant sources including grape, apple, and cacao, which has antioxidant and anti-inflammatory properties
hydroxyflavan;
polyphenol;
proanthocyanidin
anti-inflammatory agent;
antioxidant;
EC 1.17.3.2 (xanthine oxidase) inhibitor;
EC 3.2.1.20 (alpha-glucosidase) inhibitor;
lipoxygenase inhibitor;
metabolite
3-((benzyl)(methylaminocarbonyl)methylaminocarbonyl)n-hydroxy-5-methylhexanamide3-((benzyl)(methylaminocarbonyl)methylaminocarbonyl)N-hydroxy-5-methylhexanamide: structure in first source
2-(4-aminophenyl)benzothiazole2-(4-aminophenyl)benzothiazole: an agent with selective profile of in vitro anti-tumour activity; structure in first source
taxifolin(+)-taxifolin : A taxifolin that has (2R,3R)-configuration.taxifolinmetabolite
n-acetyl-d-tryptophanD-tryptophan derivative;
N-acetyl-D-amino acid
candoxatrilatcandoxatrilat : A dicarboxylic acid monoamide obtained by formal condensation between the amino group of cis-4-aminocyclohexanecarboxylic acid and the cyclopentanecarboxylic acid group of 1-[(2S)-2-carboxy-3-(2-methoxyethoxy)propyl]cyclopentanecarboxylic acid. A potent inhibitor of neutral endopeptidase (NEP, neprilysin, EC 3.4.24.11), it is used as its 2,3-dihydro-1H-inden-5-yl ester prodrug in the treatment of chronic heart failure.

candoxatrilat: USAN lists candoxatrilat (UK-73,967) with RN 123122-54-3
actinoninactinonin: natural hydroxamic acid, pseudopeptide antibiotic isolated from Streptomyces species; structure
phosphoramidonphosphoramidon : A dipeptide isolated from the cultures of Streptomyces tanashiensis.

phosphoramidon: a membrane metallo-endopeptidase & endothelin-converting enzyme inhibitor; thermolysin inhibitor from culture filtrate of Streptomyces tanashiensis; structure
deoxyaldohexose phosphate;
dipeptide
bacterial metabolite;
EC 3.4.24.11 (neprilysin) inhibitor;
EC 3.4.24.71 (endothelin-converting enzyme 1) inhibitor
cgs 27023aCGS 27023A: a matrix metalloproteinase inhibitor
aclarubicinaclacinomycin A : An anthracycline antibiotic that is produced by Streptomyces galilaeus and also has potent antineoplastic activity.

Aclarubicin: An anthracycline produced by Streptomyces galilaeus. It has potent antineoplastic activity.
aminoglycoside;
anthracycline;
methyl ester;
phenols;
polyketide;
tetracenequinones;
trisaccharide derivative;
zwitterion
antimicrobial agent;
antineoplastic agent;
apoptosis inducer;
bacterial metabolite;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor
prinomastatprinomastat : A hydroxamic acid that is (3S)-N-hydroxy-2,2-dimethylthiomorpholine-3-carboxamide in which the hydrogen attached to the thiomorpholine nitrogen has been replaced by a [4-(pyridin-4-yloxy)phenyl]sulfonyl group. It is a selective inhibitor with of matrix metalloproteinases (MMPs) 2, 3, 9, 13, and 14.

prinomastat: a diazepine-based hydroxamic acid inhibitor; matrix metalloproteinase (MMP) inhibitor; angiogenesis inhibitor;
aromatic ether;
hydroxamic acid;
pyridines;
sulfonamide;
thiomorpholines
antineoplastic agent;
EC 3.4.24.35 (gelatinase B) inhibitor;
matrix metalloproteinase inhibitor
isoliquiritigeninchalconesantineoplastic agent;
biological pigment;
EC 1.14.18.1 (tyrosinase) inhibitor;
GABA modulator;
geroprotector;
metabolite;
NMDA receptor antagonist
2-[(4-phenylphenyl)sulfonylamino]pentanedioic acidglutamic acid derivative
omapatrilatomapatrilat: structure in first sourcedipeptide
caffeic acidtrans-caffeic acid : The trans-isomer of caffeic acid.caffeic acidgeroprotector;
mouse metabolite
n-acetyltryptophanN-acetyl-L-tryptophan : A N-acetyl-L-amino acid that is the N-acetyl derivative of L-tryptophan.L-tryptophan derivative;
N-acetyl-L-amino acid
metabolite
4-thiouracil
rs-130830RS-130830: orally-active broad-spectrum matrix metalloproteinase inhibitor
pnu 142372
pnu 107859
sitagliptinsitagliptin : A triazolopyrazine that exhibits hypoglycemic activity.triazolopyrazine;
trifluorobenzene
EC 3.4.14.5 (dipeptidyl-peptidase IV) inhibitor;
environmental contaminant;
hypoglycemic agent;
serine proteinase inhibitor;
xenobiotic
thiorphan
quercetin7-hydroxyflavonol;
pentahydroxyflavone
antibacterial agent;
antineoplastic agent;
antioxidant;
Aurora kinase inhibitor;
chelator;
EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor;
geroprotector;
phytoestrogen;
plant metabolite;
protein kinase inhibitor;
radical scavenger
luteolin3'-hydroxyflavonoid;
tetrahydroxyflavone
angiogenesis inhibitor;
anti-inflammatory agent;
antineoplastic agent;
apoptosis inducer;
c-Jun N-terminal kinase inhibitor;
EC 2.3.1.85 (fatty acid synthase) inhibitor;
immunomodulator;
nephroprotective agent;
plant metabolite;
radical scavenger;
vascular endothelial growth factor receptor antagonist
quercetin 3-o-methyl ether3',4',5,7-tetrahydroxy-3-methoxyflavone : A tetrahydroxyflavone having the 4-hydroxy groups located at the 3'- 4'- 5- and 7-positions as well as a methoxy group at the 2-position.

quercetin 3-O-methyl ether: from Rhamnus species; structure in first source
monomethoxyflavone;
tetrahydroxyflavone
antimicrobial agent;
metabolite
kaempferol7-hydroxyflavonol;
flavonols;
tetrahydroxyflavone
antibacterial agent;
geroprotector;
human blood serum metabolite;
human urinary metabolite;
human xenobiotic metabolite;
plant metabolite
pulmicortbudesonide : A glucocorticoid steroid having a highly oxygenated pregna-1,4-diene structure. It is used mainly in the treatment of asthma and non-infectious rhinitis and for treatment and prevention of nasal polyposis.

Budesonide: A glucocorticoid used in the management of ASTHMA, the treatment of various skin disorders, and allergic RHINITIS.
11beta-hydroxy steroid;
20-oxo steroid;
21-hydroxy steroid;
3-oxo-Delta(1),Delta(4)-steroid;
cyclic acetal;
glucocorticoid;
primary alpha-hydroxy ketone
anti-inflammatory drug;
bronchodilator agent;
drug allergen
amentoflavonebiflavonoid;
hydroxyflavone;
ring assembly
angiogenesis inhibitor;
antiviral agent;
cathepsin B inhibitor;
P450 inhibitor;
plant metabolite
mangiferinshamimin: isolated from the leaves of Bombax ceiba; structure in first sourceC-glycosyl compound;
xanthones
anti-inflammatory agent;
antioxidant;
hypoglycemic agent;
plant metabolite
norathyriolnorathyriol : A member of the class of xanthones that is 9H-xanthen-9-one substituted by hydroxy groups at positions 1, 3, 6 and 7. Isolated from Garcinia mangostana and Maclura pomifera, it exhibits inhibitory activity against protein kinase C.

norathyriol: from Gentinanaceae; has vasorelaxing action on rat thoracic aorta; structure given in first source
polyphenol;
xanthones
antineoplastic agent;
EC 2.7.11.13 (protein kinase C) inhibitor;
plant metabolite
morinmorin : A pentahydroxyflavone that is 7-hydroxyflavonol bearing three additional hydroxy substituents at positions 2' 4' and 5.

morin: a light yellowish pigment found in the wood of old fustic (Chlorophora tinctoria)
7-hydroxyflavonol;
pentahydroxyflavone
angiogenesis modulating agent;
anti-inflammatory agent;
antibacterial agent;
antihypertensive agent;
antineoplastic agent;
antioxidant;
EC 5.99.1.2 (DNA topoisomerase) inhibitor;
hepatoprotective agent;
metabolite;
neuroprotective agent
myricetin7-hydroxyflavonol;
hexahydroxyflavone
antineoplastic agent;
antioxidant;
cyclooxygenase 1 inhibitor;
food component;
geroprotector;
hypoglycemic agent;
plant metabolite
robustaflavonerobustaflavone : A biflavonoid that is obtained by oxidative coupling of two molecules of apigenin resulting in a bond between positions C-3 of the hydroxyphenyl ring and C-6 of the chromene ring. Isolated from Thuja orientalis and Rhus succedanea it exhibits antioxidant, cytotoxic and anti-hepatitis B activity.

robustaflavone: bis-apigenin coupled at 6 and 3' positions; a potential non-nucleoside anti-hepatitis B agent;
biflavonoid;
hydroxyflavone;
ring assembly
anti-HBV agent;
antineoplastic agent;
antioxidant;
metabolite
trans-2,3',4,5'-tetrahydroxystilbenetrans-2,3',4,5'-tetrahydroxystilbene: hydroxystilbene oxyresveratrolstilbenoid
rosmarinic acid(R)-rosmarinic acid : A stereoisomer of rosmarinic acid having (R)-configuration.

rosmarinic acid : The 1-carboxy-2-(2,4-dihydroxyphenyl)ethyl ester of trans-caffeic acid.

rosmarinic acid: RN given refers to parent cpd; promote OT project
rosmarinic acidgeroprotector;
plant metabolite
ginkgolic acidhydroxybenzoic acid
cyclosporineramihyphin A: one of the metabolites produced by Fusarium sp. S-435; RN given refers to cpd with unknown MFhomodetic cyclic peptideanti-asthmatic drug;
anticoronaviral agent;
antifungal agent;
antirheumatic drug;
carcinogenic agent;
dermatologic drug;
EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor;
geroprotector;
immunosuppressive agent;
metabolite
tmi-1
benzyloxycarbonyl-phe-ala-fluormethylketonecathepsin B inhibitor : A cysteine protease inhibitor which inhibits cathepsin B (EC 3.4.22.1).
bilobetinbilobetin: a phospholipase A2 antagonistflavonoid oligomer
batimastatbatimastat : A secondary carboxamide resulting from the formal condensation of the carboxy group of (2S,3R)-5-methyl-3-{[(2S)-1-(methylamino)-1-oxo-3-phenylpropan-2-yl]carbamoyl}-2-[(thiophen-2-ylsulfanyl)methyl]hexanoic acid with the amino group of hydroxylamine. It a broad-spectrum matrix metalloprotease inhibitor.

batimastat: structure given in first source; a synthetic matrix metalloproteinase inhibitor
hydroxamic acid;
L-phenylalanine derivative;
organic sulfide;
secondary carboxamide;
thiophenes;
triamide
angiogenesis inhibitor;
antineoplastic agent;
matrix metalloproteinase inhibitor
gi 129471GI 129471: metalloprotease inhibitor that blocks TNF-alpha secretion; structure given in first source
uk 81,252sampatrilat: structure in first source
isoacteosideisoacteoside: a phenylethanoid glycoside isolated from Indian paintbrush (Verbenaceae) Castilleja linariaefolia; also in other plants; structure given in first sourcehydroxycinnamic acid
Methyl rosmarinatehydroxycinnamic acid
ik 682IK 682: inhibits TNF-alpha converting enzyme; structure in first sourcehydroxamic acid;
pyrrolidin-2-ones;
quinolines
bay 12-9566Bay 12-9566: an angiogenesis inhibitor with matrix metalloproteinase inhibitory activitybiphenyls;
organochlorine compound
chlorhexidinechlorhexidine : A bisbiguanide compound with a structure consisting of two (p-chlorophenyl)guanide units linked by a hexamethylene bridge.

Chlorhexidine: A disinfectant and topical anti-infective agent used also as mouthwash to prevent oral plaque.
biguanides;
monochlorobenzenes
antibacterial agent;
antiinfective agent
epigallocatechin-3-o-(3''-o-methyl)-gallatecatechin
(11c)cgs 25966
bb-78485BB-78485: structure in first source
ro 32-3555Ro 32-3555: structure given in first source
ro 28-2653Ro 28-2653: a synthetic matrix metalloproteinase inhibitor reduces tumor growth and prolongs survival in a prostate cancer standard rat model
cgs 35066CGS 35066: an endothelin-converting enzyme-1 inhibitor; structure in first source
abt-770ABT-770: structure in first source
sb 3ct compoundSB 3CT compound: a matrix metalloproteinase-2 inhibitor; structure in first sourcearomatic ether
pd 166793
sc 78080
ro 31-9790Ro 31-9790: hydroxamic acid derivative
n-((2s)-2-mercapto-1-oxo-4-(3,4,4- trimethyl-2,5-dioxo-1-imidazolidinyl)butyl)-l-leucyl-n,3- dimethyl-l-valinamideN-((2S)-2-mercapto-1-oxo-4-(3,4,4- trimethyl-2,5-dioxo-1-imidazolidinyl)butyl)-L-leucyl-N,3- dimethyl-L-Valinamide: matrix metalloproteinase inhibitor
2-[[4-(4-bromophenyl)phenyl]sulfonylamino]-3-methylbutanoic acidbiphenyls;
organobromine compound
arp-100
kb r8301
ageladine aageladine A : An imidazopyridine that is 1H-imidazo[4,5-c]pyridin-2-amine substituted by a 4,5-dibromo-1H-pyrrol-2-yl group at position 4. It is an alkaloid isolated from a marine sponge Agelas nakamurai and acts as an inhibitor of the matrix metalloproteinases, the key enzymes involved in tumour growth, migration, angiogenesis, invasion and metastasis.

Ageladine A: an antiangiogenic matrixmetalloproteinase inhibitor from the marine sponge Agelas nakamurai; structure in first source
alkaloid;
aromatic amine;
imidazopyridine;
organobromine compound;
pyrroles
angiogenesis inhibitor;
antineoplastic agent;
matrix metalloproteinase inhibitor;
metabolite
s 3304S 3304: structure in first source
a26771bA26771B: produced by Penicillium turbatum; structure
N(2)-([biphenyl]-4-ylsulfonyl)-N-hydroxy-N(2)-isopropoxy-D-valinamideN(2)-([biphenyl]-4-ylsulfonyl)-N-hydroxy-N(2)-isopropoxy-D-valinamide : A hydroxamic acid that is N-hydroxy-D-valinamide in which the alpha-amino group has been substituted by isopropoxy and [biphenyl]-4-ylsulfonyl groups. A selective matrix metalloproteinase-2 (MMP-2) inhibitor, it is one of the most potent inducers of autophagy. Its physiological roles include angiogenesis, cancer metastasis, embryogenesis, tissue remodeling in development, and wound healing.D-valine derivative;
hydroxamic acid
antineoplastic agent;
autophagy inducer;
EC 3.4.24.24 (gelatinase A) inhibitor;
melanin synthesis inhibitor
bms-566394BMS-566394: structure in first source
ks370gKS370G: antihyperglycemic; structure in first source
nutlin-3anutlin 3: an MDM2 antagonist; structure in first sourcestilbenoid
apratastatapratastat: structure in first sourcesulfonamide
incb3619INCB3619: ADAM inhibitor; structure in first source
tosedostatcarboxylic ester;
hydroxamic acid;
secondary carboxamide
alendronate sodium
grassystatin agrassystatin A: isolated from a cyanobacterium, identified as Lyngbya cf.; structure in first source
(4-(n-hydroxyamino)-2r-isobutyl-3s-methylsuccinyl)-l-phenylglycine-n-methylamideKB R7785: structure in first source
tetracyclinetetracycline : A broad-spectrum polyketide antibiotic produced by the Streptomyces genus of actinobacteria.

Tetracycline: A naphthacene antibiotic that inhibits AMINO ACYL TRNA binding during protein synthesis.
minocyclineminocycline : A tetracycline analogue having a dimethylamino group at position 7 and lacking the methyl and hydroxy groups at position 5.

Minocycline: A TETRACYCLINE analog, having a 7-dimethylamino and lacking the 5 methyl and hydroxyl groups, which is effective against tetracycline-resistant STAPHYLOCOCCUS infections.
guanosine diphosphateGuanosine Diphosphate: A guanine nucleotide containing two phosphate groups esterified to the sugar moiety.guanosine 5'-phosphate;
purine ribonucleoside 5'-diphosphate
Escherichia coli metabolite;
mouse metabolite;
uncoupling protein inhibitor
dacarbazine(E)-dacarbazine : A dacarbazine in which the N=N double bond adopts a trans-configuration.dacarbazine
quininibquininib : A styrylquinoline that is trans-2-styrylquinoline in which the the phenyl group has been substituted at position 2 by a hydroxy group. It is an anti-angiogenic compound that exerts a dose-dependent antagonism of the cysteinyl leukotriene pathway, preferentially antagonising cysteinyl leukotriene receptor 1. The major species at pH 7.3

quininib: has antiangiogenic activity; structure in first source
phenols;
styrylquinoline
angiogenesis inhibitor
2-[(4-chlorophenyl)methylthio]-1,5,6,7-tetrahydrocyclopenta[d]pyrimidin-4-onearyl sulfide
MMP-9-IN-1MMP-9-IN-1 : A secondary carboxamide resulting from the formal condensation of the carboxy group of [(4-oxo-6-propyl-1,4-dihydropyrimidin-2-yl)sulfanyl]acetic acid with the amino group of 4-(difluoromethoxy)aniline. It is a specific matrix metalloproteinase-9 (MMP-9) inhibitor.aromatic compound;
organic sulfide;
organofluorine compound;
pyrimidone;
secondary carboxamide
antineoplastic agent;
EC 3.4.24.35 (gelatinase B) inhibitor
2-[(4-methoxyphenyl)methylthio]-6-methyl-1H-pyrimidin-4-onemethoxybenzenes
pycnidionepycnidione: potentiator of bleomycin; isolated from Gloeotinia; structure in first source
hydrazinocurcuminhydrazinocurcumin : A pyrazole obtained by cyclocodensation of the two carbonyl groups of curcumin with hydrazine.

hydrazinocurcumin: structure in first source
aromatic ether;
olefinic compound;
polyphenol;
pyrazoles
angiogenesis modulating agent;
antineoplastic agent;
EC 2.3.1.48 (histone acetyltransferase) inhibitor;
EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor
4-[[(4-oxo-1,5,6,7-tetrahydrocyclopenta[d]pyrimidin-2-yl)thio]methyl]benzoic acid methyl esterbenzoate ester