Page last updated: 2024-10-24

platelet formation

Definition

Target type: biologicalprocess

The process in which platelets bud from long processes extended by megakaryocytes. [GOC:mah, ISBN:0815316194]

Platelet formation, also known as thrombopoiesis, is a complex process that begins in the bone marrow and involves the differentiation and maturation of megakaryocytes, large polyploid cells. Megakaryocytes are derived from hematopoietic stem cells, which undergo multiple rounds of DNA replication without cell division, resulting in cells with a large nucleus and multiple sets of chromosomes. Megakaryocytes then extend proplatelet processes, long, thin cytoplasmic extensions that contain microtubules and actin filaments. These proplatelet processes fragment into small, membrane-bound platelets, which are released into the bloodstream. Platelet formation is tightly regulated by various growth factors, including thrombopoietin (TPO), which stimulates megakaryocyte proliferation and maturation. Other factors, such as interleukin-3 (IL-3), interleukin-11 (IL-11), and stem cell factor (SCF), also contribute to megakaryopoiesis. During the process of platelet formation, megakaryocytes undergo a series of morphological changes. They become larger, their cytoplasm becomes more granular, and they develop a characteristic lobulated nucleus. These changes are driven by the expression of specific genes, including those encoding for platelet-specific proteins, such as alpha-granules, dense granules, and the platelet membrane glycoproteins. Once mature platelets are released from the bone marrow, they circulate in the bloodstream for 7-10 days. These platelets play a crucial role in hemostasis, the process of blood clotting. They adhere to the site of injury, forming a platelet plug that helps to stop bleeding. They also release factors that activate the coagulation cascade, leading to the formation of a fibrin clot that reinforces the platelet plug. Platelet formation is essential for maintaining normal blood clotting and preventing excessive bleeding.'
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Proteins (8)

ProteinDefinitionTaxonomy
Tubulin beta-1 chainA tubulin beta-1 chain that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9H4B7]Homo sapiens (human)
Receptor-type tyrosine-protein phosphatase etaA receptor-type tyrosine-protein phosphatase eta that is encoded in the genome of human. [PRO:WCB, UniProtKB:Q12913]Homo sapiens (human)
Histone acetyltransferase p300A histone acetyltransferase p300 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q09472]Homo sapiens (human)
Tyrosine-protein phosphatase non-receptor type 11A tyrosine-protein phosphatase non-receptor type 11 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q06124]Homo sapiens (human)
Caspase-9A caspase-9 that is encoded in the genome of human. [PRO:WCB, UniProtKB:P55211]Homo sapiens (human)
Caspase-3A caspase-3 that is encoded in the genome of human. [PRO:JAN, UniProtKB:P42574]Homo sapiens (human)
Myosin-9A myosin-9 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P35579]Homo sapiens (human)
Tyrosine-protein phosphatase non-receptor type 6A tyrosine-protein phosphatase non-receptor type 6 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P29350]Homo sapiens (human)

Compounds (156)

CompoundDefinitionClassesRoles
3-hydroxyanthranilic acid3-hydroxyanthranilate : A hydroxybenzoate that is the conjugate base of 3-hydroxyanthranilic acid.

3-hydroxyanthranilic acid : An aminobenzoic acid that is benzoic acid substituted at C-2 by an amine group and at C-3 by a hydroxy group. It is an intermediate in the metabolism of the amino acid tryptophan.

3-Hydroxyanthranilic Acid: An oxidation product of tryptophan metabolism. It may be a free radical scavenger and a carcinogen.
aminobenzoic acid;
monohydroxybenzoic acid
human metabolite;
mouse metabolite
4-aminophenol4-aminophenol : An amino phenol (one of the three possible isomers) which has the single amino substituent located para to the phenolic -OH group.

4-aminophenol: RN given refers to parent cpd
aminophenolallergen;
metabolite
5-iodo-2-(oxaloamino)benzoic acidorganoiodine compound
4-biphenylylacetic acidbiphenyl-4-ylacetic acid : A monocarboxylic acid in which one of the alpha-hydrogens is substituted by a biphenyl-4-yl group. An active metabolite of fenbufen, it is used as a topical medicine to treat muscle inflammation and arthritis.biphenyls;
monocarboxylic acid
non-steroidal anti-inflammatory drug
fenbufenfenbufen: structure; RN given refers to parent cpd4-oxo monocarboxylic acid;
biphenyls
non-steroidal anti-inflammatory drug
ibuprofenMidol: combination of cinnamedrine, phenacetin, aspirin & caffeinemonocarboxylic acidantipyretic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
drug allergen;
environmental contaminant;
geroprotector;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
radical scavenger;
xenobiotic
indoprofenindoprofen : A monocarboxylic acid that is propionic acid in which one of the hydrogens at position 2 is substituted by a 4-(1-oxo-1,3-dihydroisoindol-2-yl)phenyl group. Initially used as an anti-inflammatory and analgesic, it was withdrawn from the market due to causing severe gastrointestinal bleeding. It has been subsequently found to increase production of the survival motor neuron protein.

Indoprofen: A drug that has analgesic and anti-inflammatory properties. Following reports of adverse reactions including reports of carcinogenicity in animal studies it was withdrawn from the market worldwide. (From Martindale, The Extra Pharmacopoeia, 30th ed, p21)
gamma-lactam;
isoindoles;
monocarboxylic acid
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug
1-(2-naphthalenyl)-3-[(phenylmethyl)-propan-2-ylamino]-1-propanoneZM39923: structure in first sourcenaphthalenes
ketoprofenketoprofen : An oxo monocarboxylic acid that consists of propionic acid substituted by a 3-benzoylphenyl group at position 2.

Ketoprofen: An IBUPROFEN-type anti-inflammatory analgesic and antipyretic. It is used in the treatment of rheumatoid arthritis and osteoarthritis.
benzophenones;
oxo monocarboxylic acid
antipyretic;
drug allergen;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
non-steroidal anti-inflammatory drug;
xenobiotic
ketorolac5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid : A member of the class of pyrrolizines that is 2,3-dihydro-1H-pyrrolizine which is substituted at positions 1 and 5 by carboxy and benzoyl groups, respectively.

ketorolac : A racemate comprising equimolar amounts of (R)-(+)- and (S)-(-)-5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid. While only the (S)-(-) enantiomer is a COX1 and COX2 inhibitor, the (R)-(+) enantiomer exhibits potent analgesic activity. A non-steroidal anti-inflammatory drug, ketorolac is mainly used (generally as the tromethamine salt) for its potent analgesic properties in the short-term management of post-operative pain, and in eye drops to relieve the ocular itching associated with seasonal allergic conjunctivitis. It was withdrawn from the market in many countries in 1993 following association with haemorrhage and renal failure.

Ketorolac: A pyrrolizine carboxylic acid derivative structurally related to INDOMETHACIN. It is an NSAID and is used principally for its analgesic activity. (From Martindale The Extra Pharmacopoeia, 31st ed)
amino acid;
aromatic ketone;
monocarboxylic acid;
pyrrolizines;
racemate
analgesic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
non-steroidal anti-inflammatory drug
beta-lapachonebeta-lapachone : A benzochromenone that is 3,4-dihydro-2H-benzo[h]chromene-5,6-dione substituted by geminal methyl groups at position 2. Isolated from Tabebuia avellanedae, it exhibits antineoplastic and anti-inflammatory activities.

beta-lapachone: antineoplastic inhibitor of reverse transcriptase, DNA topoisomerase, and DNA polymerase
benzochromenone;
orthoquinones
anti-inflammatory agent;
antineoplastic agent;
plant metabolite
vitamin k 3Vitamin K 3: A synthetic naphthoquinone without the isoprenoid side chain and biological activity, but can be converted to active vitamin K2, menaquinone, after alkylation in vivo.1,4-naphthoquinones;
vitamin K
angiogenesis inhibitor;
antineoplastic agent;
EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor;
human urinary metabolite;
nutraceutical
nocodazolearomatic ketone;
benzimidazoles;
carbamate ester;
thiophenes
antimitotic;
antineoplastic agent;
microtubule-destabilising agent;
tubulin modulator
tiaprofenic acidtiaprofenic acid : An aromatic ketone that is thiophene substituted at C-2 by benzoyl and at C-4 by a 1-carboxyethyl group.

tiaprofenic acid: RN given refers to parent cpd; structure
aromatic ketone;
monocarboxylic acid;
thiophenes
drug allergen;
non-steroidal anti-inflammatory drug
3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole: antineoplastic; activates platelet guanylate cyclase; a radiosensitizing agent and guanylate cyclase activator; structure in first source

lificiguat : A member of the class of indazoles that is 1H-indazole which is substituted by a benzyl group at position 1 and a 5-(hydroxymethyl)-2-furyl group at position 3. It is an activator of soluble guanylate cyclase and inhibits platelet aggregation.
aromatic primary alcohol;
furans;
indazoles
antineoplastic agent;
apoptosis inducer;
platelet aggregation inhibitor;
soluble guanylate cyclase activator;
vasodilator agent
vincristineacetate ester;
formamides;
methyl ester;
organic heteropentacyclic compound;
organic heterotetracyclic compound;
tertiary alcohol;
tertiary amino compound;
vinca alkaloid
antineoplastic agent;
drug;
microtubule-destabilising agent;
plant metabolite;
tubulin modulator
colchicine(S)-colchicine : A colchicine that has (S)-configuration. It is a secondary metabolite, has anti-inflammatory properties and is used to treat gout, crystal-induced joint inflammation, familial Mediterranean fever, and many other conditions.alkaloid;
colchicine
anti-inflammatory agent;
gout suppressant;
mutagen
glycyrrhetinic acidcyclic terpene ketone;
hydroxy monocarboxylic acid;
pentacyclic triterpenoid
immunomodulator;
plant metabolite
plumbaginplumbagin : A hydroxy-1,4-naphthoquinone that is 1,4-naphthoquinone in which the hydrogens at positions 2 and 5 are substituted by methyl and hydroxy groups, respectively.

plumbagin: a superoxide anion generator
hydroxy-1,4-naphthoquinone;
phenols
anticoagulant;
antineoplastic agent;
immunological adjuvant;
metabolite
kokusagininekokusaginine: antimalarial alkaloid from Teclea afzelii; structure in first sourceorganic heterotricyclic compound;
organonitrogen heterocyclic compound;
oxacycle
oxanilic acidoxanilic acid: RN given refers to parent cpd; structure
oleanolic acidhydroxy monocarboxylic acid;
pentacyclic triterpenoid
plant metabolite
podophyllotoxinPodophyllum: A genus of poisonous American herbs, family BERBERIDACEAE. The roots yield PODOPHYLLOTOXIN and other pharmacologically important agents. The plant was formerly used as a cholagogue and cathartic. It is different from the European mandrake, MANDRAGORA.furonaphthodioxole;
lignan;
organic heterotetracyclic compound
antimitotic;
antineoplastic agent;
keratolytic drug;
microtubule-destabilising agent;
plant metabolite;
tubulin modulator
isoquinoline-1,3,4-trioneisoquinoline-1,3,4-trione: structure in first source
vinblastine
desacetamidocolchicinedesacetamidocolchicine: structure given in first source
n-methylisatinN-methylisatin: structure given in first source
1,2-benzisothiazoline-3-one1,2-benzisothiazoline-3-one: a preservative in water-based solutions such as paints, cutting fluids, printing inks, cleaning agents, polyvinyl chloride gloves, etc.

benzo[d]isothiazol-3-one : An organic heterobicyclic compound based on a fused 1,2-thiazole and benzene bicyclic ring skeleton, with the S atom positioned adjacent to one of the positions of ring fusion.
organic heterobicyclic compound;
organonitrogen heterocyclic compound
disinfectant;
drug allergen;
environmental contaminant;
platelet aggregation inhibitor;
sensitiser;
xenobiotic
thiocholchicinethiocholchicine: RN refers to (S)-isomer
palmatineburasaine: structure in first sourceberberine alkaloid;
organic heterotetracyclic compound
plant metabolite
parbendazoleparbendazole: anthelmintic used against a variety of gastrointestinal parasites; minor descriptor (75-86); on-line & INDEX MEDICUS search BENZIMIDAZOLES; RN given refers to parent cpdbenzimidazoles;
carbamate ester
phosphotyrosineO(4)-phospho-L-tyrosine : A non-proteinogenic L-alpha-amino acid that is L-tyrosine phosphorylated at the phenolic hydroxy group.

Phosphotyrosine: An amino acid that occurs in endogenous proteins. Tyrosine phosphorylation and dephosphorylation plays a role in cellular signal transduction and possibly in cell growth control and carcinogenesis.
L-tyrosine derivative;
non-proteinogenic L-alpha-amino acid;
O(4)-phosphotyrosine
Escherichia coli metabolite;
immunogen
paclitaxelTaxus: Genus of coniferous yew trees or shrubs, several species of which have medicinal uses. Notable is the Pacific yew, Taxus brevifolia, which is used to make the anti-neoplastic drug taxol (PACLITAXEL).taxane diterpenoid;
tetracyclic diterpenoid
antineoplastic agent;
human metabolite;
metabolite;
microtubule-stabilising agent
etoposidebeta-D-glucoside;
furonaphthodioxole;
organic heterotetracyclic compound
antineoplastic agent;
DNA synthesis inhibitor
2-demethylthiocolchicine2-demethylthiocolchicine: RN & structure given in first source; RN not in Chemline 10/85
vanadatesvanadate(3-) : A vanadium oxoanion that is a trianion with formula VO4 in which the vanadium is in the +5 oxidation state and is attached to four oxygen atoms.

Vanadates: Oxyvanadium ions in various states of oxidation. They act primarily as ion transport inhibitors due to their inhibition of Na(+)-, K(+)-, and Ca(+)-ATPase transport systems. They also have insulin-like action, positive inotropic action on cardiac ventricular muscle, and other metabolic effects.
trivalent inorganic anion;
vanadium oxoanion
EC 3.1.3.1 (alkaline phosphatase) inhibitor;
EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor;
EC 3.1.3.41 (4-nitrophenylphosphatase) inhibitor;
EC 3.1.3.48 (protein-tyrosine-phosphatase) inhibitor
ursolic acidhydroxy monocarboxylic acid;
pentacyclic triterpenoid
geroprotector;
plant metabolite
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
4-methylumbelliferyl phosphate
delphinidindelphinidin chloride : An anthocyanidin chloride that has delphinidin as the cationic counterpart.

Paraffin: A mixture of solid hydrocarbons obtained from petroleum. It has a wide range of uses including as a stiffening agent in ointments, as a lubricant, and as a topical anti-inflammatory. It is also commonly used as an embedding material in histology.
anthocyanidin chloride
haloproginvenenatine: RN given for (3beta,16beta,17beta,20alpha)-isomer; structure in first source
taxodionetaxodione: structurediterpenoid
maslinic acid(2Alpha,3beta)-2,3-dihydroxyolean-12-en-28-oic acid: from Luehea divaricata and Agrimonia eupatoriadihydroxy monocarboxylic acid;
pentacyclic triterpenoid
anti-inflammatory agent;
antineoplastic agent;
antioxidant;
plant metabolite
1-benzylpiperazine1-benzylpiperazine : A tertiary amino compound that is piperazine substituted by a benzyl group at position 1. It is a serotonergic agonist used as a recreational drug.

1-benzylpiperazine: possesses psychomotor stimulant activity similar to dextroamphetamine; RN given refers to parent cpd; structure
N-alkylpiperazineenvironmental contaminant;
psychotropic drug;
serotonergic agonist;
xenobiotic
3-demethylthiocolchicine3-demethylthiocolchicine: RN & structure given in first source; RN not in Chemline 10/85
coenzyme aadenosine 3',5'-bisphosphatecoenzyme;
Escherichia coli metabolite;
mouse metabolite
c.i. direct red 23C.I. Direct Red 23: azo dye; structure in first source
nsc-87877NSC-87877: potent Shp2 (nonreceptor protein tyrosine phosphatase) inhibitor; structure in first source
quercetin 5,7,3',4'-tetramethyl etherquercetin 5,7,3',4'-tetramethyl ether : A tetramethoxyflavone that is the 5,7,3',4'-tetramethy-derivative of quercetin.flavonols;
tetramethoxyflavone
plant metabolite
5,4'-dihydroxy-3,6,7,8,3'-pentamethoxyflavone5,4'-dihydroxy-3,6,7,8,3'-pentamethoxyflavone: a flavonol isolated from Polanisia dodecandra; structure given in first source
tingenonetingenone: quinonoid triterpene isolated from Euonymus tingens
geniposideterpene glycoside
tanshinonetanshinone: from root of Salvia miltiorrhiza Bunge; RN given refers to tanshinone I; cardioprotective agent and neuroprotective agentabietane diterpenoidanticoronaviral agent
n-(4-(7-diethylamino-4-methylcoumarin-3-yl)phenyl)maleimide7-diethylamino-3-(4-maleimidophenyl)-4-methylcoumarin : A member of the class of coumarins that is 2H-chromen-2-one substituted by 4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl, methyl, and diethylamino groups at positions 3, 4 and 7, respectively. It is a thiol-reactive fluorescent dye.

N-(4-(7-diethylamino-4-methylcoumarin-3-yl)phenyl)maleimide: structure given in first source
benzenes;
coumarins;
maleimides;
tertiary amino compound
fluorescent dye
celastrolmonocarboxylic acid;
pentacyclic triterpenoid
anti-inflammatory drug;
antineoplastic agent;
antioxidant;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
Hsp90 inhibitor;
metabolite
5-hydroxy-3,6,7,8,3',4'-hexamethoxyflavone5-hydroxy-3,6,7,8,3',4'-hexamethoxyflavone: has antineoplastic activity; structure in first sourceether;
flavonoids
docetaxelhydrate;
secondary alpha-hydroxy ketone
antineoplastic agent
levofloxacinlevofloxacin : An optically active form of ofloxacin having (S)-configuration; an inhibitor of bacterial topoisomerase IV and DNA gyrase.

Levofloxacin: The L-isomer of Ofloxacin.
9-fluoro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid;
fluoroquinolone antibiotic;
quinolone antibiotic
antibacterial drug;
DNA synthesis inhibitor;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
topoisomerase IV inhibitor
3,3',4',5,6,7,8-heptamethoxyflavone3,3',4',5,6,7,8-heptamethoxyflavone: has anti-inflammatory activity; isolated from citrus fruit; exhibit antiadhesive action on plateletsether;
flavonoids
pralnacasanpralnacasan: NSAID, ICE inhibitor & metastasis inhibitor; RN & structure in first source
naproxennaproxen : A methoxynaphthalene that is 2-methoxynaphthalene substituted by a carboxy ethyl group at position 6. Naproxen is a non-steroidal anti-inflammatory drug commonly used for the reduction of pain, fever, inflammation and stiffness caused by conditions such as osteoarthritis, kidney stones, rheumatoid arthritis, psoriatic arthritis, gout, ankylosing spondylitis, menstrual cramps, tendinitis, bursitis, and for the treatment of primary dysmenorrhea. It works by inhibiting both the COX-1 and COX-2 enzymes.

Naproxen: An anti-inflammatory agent with analgesic and antipyretic properties. Both the acid and its sodium salt are used in the treatment of rheumatoid arthritis and other rheumatic or musculoskeletal disorders, dysmenorrhea, and acute gout.
methoxynaphthalene;
monocarboxylic acid
antipyretic;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
drug allergen;
environmental contaminant;
gout suppressant;
non-narcotic analgesic;
non-steroidal anti-inflammatory drug;
xenobiotic
ustiloxin dustiloxin D: an antimitotic cyclic peptide; from false smut balls on rice panicles caused by Ustilaginoidea virens; structure given in first sourceoligopeptide
cryptotanshinonecryptotanshinone: from Salvia miltiorrhizaabietane diterpenoidanticoronaviral agent
4'-demethyldesoxypodophyllotoxin4'-demethyldeoxypodophyllotoxin : A member of the class of furonaphthodioxoles that is (5R,5aR,8aR)-5,8,8a,9-tetrahydro-2H-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6(5aH)-one substituted at position 5 by a 4-hydroxy-3,5-dimethoxyphenyl group.

4'-demethyldesoxypodophyllotoxin: from the root of Bursera tonkinensis Guillaum; structure in first source
furonaphthodioxole;
gamma-lactone;
lignan;
methoxybenzenes;
phenols
antineoplastic agent;
antioxidant;
immunosuppressive agent;
plant metabolite
2-phenyl-4-oxohydroquinoline2-phenyl-4-oxohydroquinoline: structure given in first source
ustiloxin austiloxin A: a modified peptide from the fungus Ustilaginoidea virens or false smut ball; structurally similar to phomopsin A; structure given in first source
tanshinone ii atashinone IIA: a cardiovascular agent with antineoplastic activity; isolated from Salvia miltiorrhiza; structure in first sourceabietane diterpenoid
2-phenyl-1,2-benzisothiazol-3-(2h)-one2-phenyl-1,2-benzisothiazol-3-(2H)-one: structure given in first source; sulfur analog of ebselen
anacardic acidanacardic acid : A hydroxybenzoic acid that is salicylic acid substituted by a pentadecyl group at position 6. It is a major component of cashew nut shell liquid and exhibits an extensive range of bioactivities.

anacardic acid: isolated from Anacardium occidentale; monophenol monooxygenase inhibitor
hydroxy monocarboxylic acid;
hydroxybenzoic acid
anti-inflammatory agent;
antibacterial agent;
anticoronaviral agent;
apoptosis inducer;
EC 2.3.1.48 (histone acetyltransferase) inhibitor;
EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor;
neuroprotective agent;
plant metabolite
colchiceinecyclic ketone
(R)-Roemerineisoquinoline alkaloid
vinblastine sulfatealkaloid sulfate salt
vincaleukoblastineacetate ester;
indole alkaloid fundamental parent;
methyl ester;
organic heteropentacyclic compound;
organic heterotetracyclic compound;
tertiary alcohol;
tertiary amino compound;
vinca alkaloid
antineoplastic agent;
immunosuppressive agent;
microtubule-destabilising agent;
plant metabolite
nsc-89199estramustine phosphate : A steroid phosphate which is the 17-O-phospho derivative of estramustine.carbamate ester;
organochlorine compound;
steroid phosphate
estramustineestramustine : A carbamate ester obtained by the formal condensation of the hydroxy group of 17beta-estradiol with the carboxy group of bis(2-chloroethyl)carbamic acid.

Estramustine: A nitrogen mustard linked to estradiol, usually as phosphate; used to treat prostatic neoplasms; also has radiation protective properties.
17beta-hydroxy steroid;
carbamate ester;
organochlorine compound
alkylating agent;
antineoplastic agent;
radiation protective agent
gardenin agardenin A: promotes neurite outgrowth; structure in first source
nsc 953971,4-naphthoquinones
noscapine(-)-noscapine : A benzylisoquinoline alkaloid that is 1,2,3,4-tetrahydroisoquinoline which is substituted by a 4,5-dimethoxy-3-oxo-1,3-dihydro-2-benzofuran-1-yl group at position 1, a methylenedioxy group at positions 6-7 and a methoxy group at position 8. Obtained from plants of the Papaveraceae family, it lacks significant painkilling properties and is primarily used for its antitussive (cough-suppressing) effects.

Noscapine: A naturally occurring opium alkaloid that is a centrally acting antitussive agent.
aromatic ether;
benzylisoquinoline alkaloid;
cyclic acetal;
isobenzofuranone;
organic heterobicyclic compound;
organic heterotricyclic compound;
tertiary amino compound
antineoplastic agent;
antitussive;
apoptosis inducer;
plant metabolite
3',4',5'-trimethoxyflavone3',4',5'-trimethoxyflavone: structure in first sourceether;
flavonoids
anthricinanthricin: antitumor constituent from Anthriscus sylvestris (L.) Hoffm; structure in first source

deoxypodophyllotoxin : A member of the class of furonaphthodioxoles that is (5R,5aR,8aR)-5,8,8a,9-tetrahydro-2H-furo[3',4':6,7]naphtho[2,3-d][1,3]dioxol-6(5aH)-one substituted at position 5 by a 3,4,5-trimethoxyphenyl group.
furonaphthodioxole;
gamma-lactone;
lignan;
methoxybenzenes
antineoplastic agent;
apoptosis inducer;
plant metabolite
1,3(2h,4h)-isoquinolinedione1,3(2H,4H)-isoquinolinedione: structure in first source
5-demethylnobiletin5-demethylnobiletin: antineoplastic from Citrus plants; structure in first sourceether;
flavonoids
5,3'-dihydroxy-3,6,7,8,4'-pentamethoxyflavone5,3'-dihydroxy-3,6,7,8,4'-pentamethoxyflavone: an antineoplastic flavonol isolated from Polanisia dodecandra; structure given in first source
genipiniridoid monoterpenoidanti-inflammatory agent;
antioxidant;
apoptosis inhibitor;
cross-linking reagent;
hepatotoxic agent;
uncoupling protein inhibitor
2-(oxaloamino)benzoic acid(oxaloamino)benzoic acid
epothilone bepothilone;
epoxide
antineoplastic agent;
apoptosis inducer;
microtubule-stabilising agent
chalconetrans-chalcone : The trans-isomer of chalcone.chalconeEC 3.2.1.1 (alpha-amylase) inhibitor
acetyl-aspartyl-glutamyl-valyl-aspartalAc-Asp-Glu-Val-Asp-H : A tetrapeptide consisting of two L-aspartic acid residues, an L-glutamyl residue and an L-valine residue with an acetyl group at the N-terminal and with the C-terminal carboxy group reduced to an aldehyde. It is an inhibitor of caspase-3/7.

acetyl-aspartyl-glutamyl-valyl-aspartal: a capase inhibitor
tetrapeptideprotease inhibitor
cefsulodincefsulodin : A pyridinium-substituted semi-synthetic, broad-spectrum, cephalosporin antibiotic.

Cefsulodin: A pyridinium-substituted semisynthetic, broad-spectrum antibacterial used especially for Pseudomonas infections in debilitated patients.
cephalosporin;
organosulfonic acid;
primary carboxamide
antibacterial drug
2-amino-3-cyano-7-(dimethylamino)-4-(3-methoxy-4,5-methylenedioxyphenyl)-4h-chromene2-amino-3-cyano-7-(dimethylamino)-4-(3-methoxy-4,5-methylenedioxyphenyl)-4H-chromene: induces apoptosis; structure in first source
ag-213tyrphostin 47: inhibits protein-tyrosine kinase activity of EGF-R both in vitro and in living cells;
nq301NQ301: structure in first source
1,6-dimethyl-3-(2-pyridinyl)pyrimido[5,4-e][1,2,4]triazine-5,7-dionepyrimidotriazine
curcumincurcumin : A beta-diketone that is methane in which two of the hydrogens are substituted by feruloyl groups. A natural dyestuff found in the root of Curcuma longa.

Curcumin: A yellow-orange dye obtained from tumeric, the powdered root of CURCUMA longa. It is used in the preparation of curcuma paper and the detection of boron. Curcumin appears to possess a spectrum of pharmacological properties, due primarily to its inhibitory effects on metabolic enzymes.
aromatic ether;
beta-diketone;
diarylheptanoid;
enone;
polyphenol
anti-inflammatory agent;
antifungal agent;
antineoplastic agent;
biological pigment;
contraceptive drug;
dye;
EC 1.1.1.205 (IMP dehydrogenase) inhibitor;
EC 1.1.1.21 (aldehyde reductase) inhibitor;
EC 1.1.1.25 (shikimate dehydrogenase) inhibitor;
EC 1.6.5.2 [NAD(P)H dehydrogenase (quinone)] inhibitor;
EC 1.8.1.9 (thioredoxin reductase) inhibitor;
EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor;
EC 3.5.1.98 (histone deacetylase) inhibitor;
flavouring agent;
food colouring;
geroprotector;
hepatoprotective agent;
immunomodulator;
iron chelator;
ligand;
lipoxygenase inhibitor;
metabolite;
neuroprotective agent;
nutraceutical;
radical scavenger
umi-77UMI-77: an Mcl-1 inhibitor; structure in first source
cyqualoncyclovalone: is a synthetic curcumin derivative; structure in first source
e 7010E 7010: inhibits tubulin polymerization; structure given in first sourcesulfonamide
1,6-dimethyl-3-propylpyrimido[5,4-e][1,2,4]triazine-5,7-dionepyrimidotriazine
nsc 117199
blisterblebbistatin : A pyrroloquinoline that is 1,2,3,3a-tetrahydro-H-pyrrolo[2,3-b]quinolin-4-one substituted by a hydroxy group at position 3a, a methyl group at position 6 and a phenyl group at position 1. It acts as an inhibitor of ATPase activity of non-muscle myosin II.

blebbistatin: structure in first source
cyclic ketone;
pyrroloquinoline;
tertiary alcohol;
tertiary alpha-hydroxy ketone
inhibitor
illudalic acidilludalic acid: isolated from Clitocybe illudens; structure in first source
5-Nitroisatinindolesanticoronaviral agent
eupatilineupatilin : A trimethoxyflavone that is flavone substituted by hydroxy groups at C-5 and C-7 and methoxy groups at C-6, C-3' and C-4' respectively. Isolated from Citrus reticulata and Salvia tomentosa, it exhibits anti-inflammatory, anti-ulcer and antineoplastic activities.

eupatilin: isolated from Artemisia argyi
dihydroxyflavone;
trimethoxyflavone
anti-inflammatory agent;
anti-ulcer drug;
antineoplastic agent;
EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor;
metabolite
ayanin3',5-dihydroxy-3,4',7-trimethoxyflavone : A trimethoxyflavone that is quercetin in which the hydroxy groups at positions 3, 4' and 7 have been replaced by methoxy groups.

ayanin: has cytoprotective and anti-neuroinflammatory activities; isolated from Croton schiedeanus (Euphorbiaceae); structure in first source
dihydroxyflavone;
trimethoxyflavone
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
santinsantin : A trimethoxyflavone that is flavone substituted by methoxy groups at positions 3, 6 and 4' and hydroxy groups at positions 5 and 7 respectively.

santin: from Tanacetum microphyllum; structure given in first source
dihydroxyflavone;
trimethoxyflavone
plant metabolite
rottlerinrottlerin : A chromenol that is 2,2-dimethyl-2H-chromene substituted by hydroxy groups at positions 5 and 7, a 3-acetyl-2,4,6-trihydroxy-5-methylbenzyl group at position 6 and a (1E)-3-oxo-1-phenylprop-1-en-3-yl group at position 8. A potassium channel opener, it is isolated from Mallotus philippensis.

rottlerin: an angiogenesis inhibitor; an inhibitor of protein kinase Cdelta (PKCdelta) and calmodulin kinase III; RN refers to (E)-isomer; do not confuse this chalcone with an anthraquinone that is also called rottlerin (RN 481-72-1);
aromatic ketone;
benzenetriol;
chromenol;
enone;
methyl ketone
anti-allergic agent;
antihypertensive agent;
antineoplastic agent;
apoptosis inducer;
K-ATP channel agonist;
metabolite
curacin acuracin A: RN refers to curacin A (the Z,E,E-isomer), the major lipid component of a strain of the marine cyanobacterium Lyngbya majuscula; structure given in first sourcethiazoles
n-acetyltyrosyl-valyl-alanyl-aspartyl aldehyde
benzyloxycarbonyl-phe-ala-fluormethylketonecathepsin B inhibitor : A cysteine protease inhibitor which inhibits cathepsin B (EC 3.4.22.1).
vinorelbineacetate ester;
methyl ester;
organic heteropentacyclic compound;
organic heterotetracyclic compound;
ring assembly;
vinca alkaloid
antineoplastic agent;
photosensitizing agent
centaureidincentaureidin : A trihydroxyflavone that consists of quercetagetin in which the hydroxy groups at positions 3, 6 and 4' have been replaced by methoxy groups. It has been isolated from Eremophila mitchellii and Athroisma proteiforme.

centaureidin: structure given in first source; isolated from Tanacetum microphyllum, Brickellia veronicaefolia
trihydroxyflavone;
trimethoxyflavone
antineoplastic agent;
cyclooxygenase 1 inhibitor;
cyclooxygenase 2 inhibitor;
plant metabolite
eupatineupatin : A trimethoxyflavone that is quercetagetin methylated at positions 4', 6 and 7.flavonols;
trihydroxyflavone;
trimethoxyflavone
5,7-dihydroxy-4',6-dimethoxyflavone5,7-dihydroxy-4',6-dimethoxyflavone: from Cirsium japonicum D. C.

pectolinarigenin : A dimethoxyflavone that is the 6,4'-dimethyl ether derivative of scutellarein.
dihydroxyflavone;
dimethoxyflavone
plant metabolite
fosbretabulinstilbenoid
guttiferone eguttiferone E: isolated from the fruits of Garcinia pyrifera collected in Malaysia; structure in first source
2-amino-6-chloropurine6-chloroguanine : An organochlorine compound that is 7H-purin-2-amine substituted by a chloro group at position 6.

6-chloroguanine: an antimalarial that inhibits hypoxanthine-guanine-xanthine phosphoribosyltransferase; structure in first source
2-aminopurines;
organochlorine compound
5,7,3'-trihydroxy-3,4'-dimethoxyflavone5,7,3'-trihydroxy-3,4'-dimethoxyflavone: induced cell death in human leukemia cells is dependent on caspases and activates the MAPK pathway; structure in first source

quercetin 3,4'-dimethyl ether : A dimethoxyflavone that is the 3,4'-dimethyl ether derivative of quercetin. Isolated from Combretum quadrangulare, it exhibits antineoplastic activity.
dimethoxyflavone;
trihydroxyflavone
antineoplastic agent;
metabolite
1-(4-methoxyphenyl)-2-(3,4,5-trimethoxyphenyl)ethene
vinblastine sulfate
ternatin (flavonoid)ternatin (flavonoid): from Sceptridium ternatum; also isolated from Egletes viscosa; structure in first sourceether;
flavonoids
benzyloxycarbonylvalyl-alanyl-aspartyl fluoromethyl ketone
gw-5074
cryptophycin 1
pironetinpironetin: a microbial secondary metabolite having the activity of shortening plant height from Streptomyces sp.; structure in first sourcealiphatic alcohol
mdl 27048MDL 27048: structure given in first source; powerful & reversible microtubule inhibitor
hti-286HTI-286: a synthetic analog of the tripeptide hemiasterlin; structure in first source
corosolic acidtriterpenoidmetabolite
ave-8063AVE-8063: has both antivascular and antineoplastic activities; structure in first source
dolastatin 10dolastatin 10 : A tetrapeptide that is isolated from the sea hare Dolabella auricularia. It is a potent anticancer agent which inhibits tubulin polymerization.

dolastatin 10: from mollusk Dolabella auricularia; contains four amino acids, dolavaline, dolaisoleucine, dolaproine, valine and the primary amine dolaphenine; deo-dolastatin 10 is a new dolastatin 10 chiral derivative with MW of 784
1,3-thiazoles;
tetrapeptide
animal metabolite;
antineoplastic agent;
apoptosis inducer;
marine metabolite;
microtubule-destabilising agent
4-(3-(1-adamantyl)-4-hydroxyphenyl)-3-chlorocinnamic acid
2-hydroxy-6-[(8Z,11Z)-pentadeca-8,11,14-trien-1-yl]benzoic acidhydroxybenzoic acid
3-hydroxy-4,3',4',5'-tetramethoxychalcone3-hydroxy-4,3',4',5'-tetramethoxychalcone: structure in first source
nsc 348103
dolastatin 15dolastatin 15: from Dolabella auricularia; seven subunit depsipeptide
6h-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-6-acetamide, 4-(4-chlorophenyl)-n-(4-hydroxyphenyl)-2,3,9-trimethyl-, (6s)-organonitrogen heterocyclic compound;
organosulfur heterocyclic compound
arenastatin a
bpr0l075
chetomin
camboginisogarcinol: has immunosuppresant activity; isolated from Garcinia mangostana; structure in first source
acetic acid 2-[4-methyl-8-(4-morpholinylsulfonyl)-1,3-dioxo-2-pyrrolo[3,4-c]quinolinyl]ethyl esterpyrroloquinoline
Dihydrotanshinone Idihydrotanshinone I: extracted from Radix Salviaeabietane diterpenoidanticoronaviral agent
zampanolidezampanolide: structure in first source
pf 03491390
3,4-dimethoxy-n-((2,2-dimethyl-2h-chromen-6-yl)methyl)-n-phenylbenzenesulfonamide3,4-dimethoxy-N-((2,2-dimethyl-2H-chromen-6-yl)methyl)-N-phenylbenzenesulfonamide: has antineoplastic activity; structure in first source
kx-01
isocombretastatin a-4
3-(1-(3-(biphenyl-4-ylamino)-3-oxopropyl)-1h-1,2,3-triazol-4-yl)-6-hydroxy-1-methyl-2-phenyl-1h-indole-5-carboxylic acid3-(1-(3-(biphenyl-4-ylamino)-3-oxopropyl)-1H-1,2,3-triazol-4-yl)-6-hydroxy-1-methyl-2-phenyl-1H-indole-5-carboxylic acid: an SHP2 inhibitor; structure in first source
grassystatin agrassystatin A: isolated from a cyanobacterium, identified as Lyngbya cf.; structure in first source
jq1 compoundcarboxylic ester;
organochlorine compound;
tert-butyl ester;
thienotriazolodiazepine
angiogenesis inhibitor;
anti-inflammatory agent;
antineoplastic agent;
apoptosis inducer;
bromodomain-containing protein 4 inhibitor;
cardioprotective agent;
ferroptosis inducer
gsk525762amolibresib: mimicks acetylated histones; structure in first sourcebenzodiazepine
i-bet726
MK-8353MK-8353 : A member of the class of indazoles that is 1H-indazole substituted by a 6-(propan-2-yloxy)pyridin-3-yl group at position 3 and by a {[(3S)-3-(methylsulfanyl)-1-(2-{4-[4-(1-methyl-1H-1,2,4-triazol-3-yl)phenyl]-3,6-dihydropyridin-1(2H)-yl}-2-oxoethyl)pyrrolidin-3-yl]carbonyl}amino group at position 5. It is a potent and selective inhibitor of ERK1 and ERK2 in vitro (IC50 values of 23.0 nM and 8.8 nM, respectively). The drug is being developed by Merck Sharp & Dohme and is currently in clinical development for the treatment of advanced/metastatic solid tumors.

MK-8353: ERK inhibitor used in oncology
aromatic ether;
dihydropyridine;
indazoles;
methyl sulfide;
N-alkylpyrrolidine;
pyridines;
pyrrolidinecarboxamide;
secondary carboxamide;
tertiary carboxamide;
triazoles
antineoplastic agent;
apoptosis inducer;
EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor
1,2-bis(isothiazol-5-yl)disulfane1,2-bis(isothiazol-5-yl)disulfane: structure in first source
2-styrylquinazolin-4(3h)-one2-styrylquinazolin-4(3H)-one: structure given in first source
2-carboxyarabinitol 1-phosphate