Page last updated: 2024-10-24
negative regulation of stem cell population maintenance
Definition
Target type: biologicalprocess
Any process that stops, prevents or reduces the frequency, rate or extent of stem cell population maintenance. [GOC:hjd, GOC:TermGenie, PMID:22969033]
Negative regulation of stem cell population maintenance is a critical process that ensures the proper balance and homeostasis of stem cell pools within tissues. This intricate process involves a complex interplay of signaling pathways, transcriptional regulation, and cellular interactions, all aimed at preventing uncontrolled stem cell proliferation and differentiation.
One key aspect of negative regulation involves the suppression of stem cell self-renewal. This is achieved through various mechanisms, including:
- **Inhibition of mitogenic signaling pathways:** Pathways like the Wnt, Shh, and Notch signaling pathways are known to promote stem cell proliferation and self-renewal. Negative regulation can involve the downregulation of these pathways through the activation of inhibitors, such as Wnt antagonists (e.g., DKK1, sFRP1) or the suppression of pathway components.
- **Activation of cell cycle inhibitors:** Genes like p16INK4a, p21CIP1, and p53 act as cell cycle inhibitors and can be induced to restrict stem cell proliferation.
- **Induction of differentiation pathways:** Stem cells can be directed toward specific lineages through the activation of lineage-specific transcription factors and signaling pathways, effectively reducing the pool of undifferentiated stem cells.
Another important facet of negative regulation is the control of stem cell apoptosis. This involves:
- **Activation of pro-apoptotic pathways:** Factors like p53, caspase-dependent pathways, and death receptor signaling can be triggered to induce programmed cell death in stem cells that are damaged, dysfunctional, or potentially harmful.
- **Suppression of anti-apoptotic pathways:** Mechanisms that inhibit apoptosis, such as the expression of anti-apoptotic proteins, can be downregulated to facilitate the removal of unwanted stem cells.
In addition to these molecular mechanisms, the cellular environment also plays a crucial role in negative regulation. This includes:
- **Interactions with niche cells:** Stem cells reside in specialized microenvironments called niches, which provide essential cues for their maintenance and function. Niche cells can secrete factors that inhibit stem cell proliferation or induce differentiation.
- **Competition for resources:** Stem cells within a niche may compete for limited resources, such as growth factors and space, which can contribute to negative regulation.
Overall, negative regulation of stem cell population maintenance is a dynamic and multifaceted process that ensures the precise control of stem cell numbers and behavior. Dysregulation of this process can lead to various pathologies, including cancer, developmental defects, and tissue regeneration impairments. Therefore, understanding the mechanisms underlying negative regulation is essential for developing effective therapies for a wide range of diseases.'
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Proteins (7)
| Protein | Definition | Taxonomy |
|---|---|---|
| Lysyl oxidase homolog 2 | A lysyl oxidase homolog 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9Y4K0] | Homo sapiens (human) |
| Inhibitor of growth protein 2 | An inhibitor of growth protein 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9H160] | Homo sapiens (human) |
| Histone deacetylase 2 | A histone deacetylase 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q92769] | Homo sapiens (human) |
| Histone-binding protein RBBP7 | A histone-binding protein RBBP7 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q16576] | Homo sapiens (human) |
| Histone deacetylase 1 | A histone deacetylase 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q13547] | Homo sapiens (human) |
| Histone-binding protein RBBP4 | A histone-binding protein RBBP4 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q09028] | Homo sapiens (human) |
| UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase 110 kDa subunit | A UDP-N-acetylglucosamine--peptide N-acetylglucosaminyltransferase 110 kDa subunit that is encoded in the genome of human. [PRO:DNx, UniProtKB:O15294] | Homo sapiens (human) |
Compounds (130)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| gamma-aminobutyric acid | gamma-aminobutyric acid : A gamma-amino acid that is butanoic acid with the amino substituent located at C-4. gamma-Aminobutyric Acid: The most common inhibitory neurotransmitter in the central nervous system. | amino acid zwitterion; gamma-amino acid; monocarboxylic acid | human metabolite; neurotransmitter; Saccharomyces cerevisiae metabolite; signalling molecule |
| butyric acid | butyrate : A short-chain fatty acid anion that is the conjugate base of butyric acid, obtained by deprotonation of the carboxy group. butyric acid : A straight-chain saturated fatty acid that is butane in which one of the terminal methyl groups has been oxidised to a carboxy group. Butyric Acid: A four carbon acid, CH3CH2CH2COOH, with an unpleasant odor that occurs in butter and animal fat as the glycerol ester. | fatty acid 4:0; straight-chain saturated fatty acid | human urinary metabolite; Mycoplasma genitalium metabolite |
| phenethylamine | 2-phenylethylamine : A phenylethylamine having the phenyl substituent at the 2-position. phenethylamine: RN given refers to parent cpd; structure in Merck Index, 9th ed, #7016 | alkaloid; aralkylamine; phenylethylamine | Escherichia coli metabolite; human metabolite; mouse metabolite |
| pyrithione | pyrithione : A pyridinethione that is pyridine-2(1H)-thione in which the hydrogen attached to the nitrogen is replaced by a hydroxy group. It is a Zn(2+) ionophore; the zinc salt is used as an antifungal and antibacterial agent. pyrithione: split from cephalosporin molecule; some metal complexes of this have fumarate reductase inhibitory activity and may be useful against trypanosomes; RN given refers to parent cpd; structure | monohydroxypyridine; pyridinethione | ionophore |
| aminopropionitrile | Aminopropionitrile: Reagent used as an intermediate in the manufacture of beta-alanine and pantothenic acid. | aminopropionitrile | antineoplastic agent; antirheumatic drug; collagen cross-linking inhibitor; plant metabolite |
| acetohydroxamic acid | acetohydroxamic 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 |
| bufexamac | bufexamac : A hydroxamic acid derived from phenylacetamide in which the benzene moiety is substituted at C-4 by a butoxy group. It has anti-inflammatory, analgesic, and antipyretic properties. Bufexamac: A benzeneacetamide with anti-inflammatory, analgesic, and antipyretic action. It is administered topically, orally, or rectally. | aromatic ether; hydroxamic acid | antipyretic; non-narcotic analgesic; non-steroidal anti-inflammatory drug |
| celecoxib | organofluorine compound; pyrazoles; sulfonamide; toluenes | cyclooxygenase 2 inhibitor; geroprotector; non-narcotic analgesic; non-steroidal anti-inflammatory drug | |
| ci 994 | tacedinaline : A benzamide obtained by formal condensation of the carboxy group of 4-acetamidobenzoic acid with one of the amino groups of 1,2-phenylenediamine. An oral cytostatic drug with impressive differential activity against leukemic cells and normal stem-cells. Also used in combination therapy for selected tumors including non-smoll cell lung, pancreatic, breast, and colorectal cancers. tacedinaline: oral cytostatic drug with impressive differential activity against leukemic cells & normal stem-cells | acetamides; benzamides; substituted aniline | antineoplastic agent; EC 3.5.1.98 (histone deacetylase) inhibitor |
| clioquinol | 5-chloro-7-iodoquinolin-8-ol : A monohydroxyquinoline that is quinolin-8-ol in which the hydrogens at positions 5 and 7 are replaced by chlorine and iodine, respectively. It has antibacterial and atifungal properties, and is used in creams for the treatment of skin infections. It has also been investigated as a chelator of copper and zinc ions for the possible treatment of Alzheimer's disease. Clioquinol: A potentially neurotoxic 8-hydroxyquinoline derivative long used as a topical anti-infective, intestinal antiamebic, and vaginal trichomonacide. The oral preparation has been shown to cause subacute myelo-optic neuropathy and has been banned worldwide. | monohydroxyquinoline; organochlorine compound; organoiodine compound | antibacterial agent; antifungal agent; antimicrobial agent; antineoplastic agent; antiprotozoal drug; chelator; copper chelator |
| disulfiram | organic disulfide; organosulfur acaricide | angiogenesis inhibitor; antineoplastic agent; apoptosis inducer; EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor; EC 3.1.1.1 (carboxylesterase) inhibitor; EC 3.1.1.8 (cholinesterase) inhibitor; EC 5.99.1.2 (DNA topoisomerase) inhibitor; ferroptosis inducer; fungicide; NF-kappaB inhibitor | |
| valproic acid | valproic acid : A branched-chain saturated fatty acid that comprises of a propyl substituent on a pentanoic acid stem. Valproic Acid: A fatty acid with anticonvulsant and anti-manic properties that is used in the treatment of EPILEPSY and BIPOLAR DISORDER. The mechanisms of its therapeutic actions are not well understood. It may act by increasing GAMMA-AMINOBUTYRIC ACID levels in the brain or by altering the properties of VOLTAGE-GATED SODIUM CHANNELS. | branched-chain fatty acid; branched-chain saturated fatty acid | anticonvulsant; antimanic drug; EC 3.5.1.98 (histone deacetylase) inhibitor; GABA agent; neuroprotective agent; psychotropic drug; teratogenic agent |
| fluconazole | fluconazole : A member of the class of triazoles that is propan-2-ol substituted at position 1 and 3 by 1H-1,2,4-triazol-1-yl groups and at position 2 by a 2,4-difluorophenyl group. It is an antifungal drug used for the treatment of mucosal candidiasis and for systemic infections including systemic candidiasis, coccidioidomycosis, and cryptococcosis. Fluconazole: Triazole antifungal agent that is used to treat oropharyngeal CANDIDIASIS and cryptococcal MENINGITIS in AIDS. | conazole antifungal drug; difluorobenzene; tertiary alcohol; triazole antifungal drug | environmental contaminant; P450 inhibitor; xenobiotic |
| beta-thujaplicin | beta-thujaplicin : A monoterpenoid that is cyclohepta-2,4,6-trien-1-one substituted by a hydroxy group at position 2 and an isopropyl group at position 4. Isolated from Thuja plicata and Chamaecyparis obtusa, it exhibits antimicrobial activities. beta-thujaplicin: structure | cyclic ketone; enol; monoterpenoid | antibacterial agent; antifungal agent; antineoplastic agent; antiplasmodial drug; plant metabolite |
| 4-(dimethylamino)-n-(7-(hydroxyamino)-7-oxoheptyl)benzamide | 4-(dimethylamino)-N-(7-(hydroxyamino)-7-oxoheptyl)benzamide: structure in first source 4-(dimethylamino)-N-[7-(hydroxyamino)-7-oxoheptyl]benzamide : A benzamide resulting from the formal condensation of the carboxy group of 4-(dimethylamino)benzoic acid with the amino group of 7-amino-N-hydroxyheptanamide. It is a potent inhibitor of histone deacetylases and induces cell cycle arrest and apoptosis in several human cancer cell lines. | benzamides; hydroxamic acid; secondary carboxamide; tertiary amino compound | antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor |
| entinostat | benzamides; carbamate ester; primary amino compound; pyridines; substituted aniline | antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor | |
| 4-phenylbutyric acid | 4-phenylbutyric acid : A monocarboxylic acid the structure of which is that of butyric acid substituted with a phenyl group at C-4. It is a histone deacetylase inhibitor that displays anticancer activity. It inhibits cell proliferation, invasion and migration and induces apoptosis in glioma cells. It also inhibits protein isoprenylation, depletes plasma glutamine, increases production of foetal haemoglobin through transcriptional activation of the gamma-globin gene and affects hPPARgamma activation. 4-phenylbutyric acid: RN refers to the parent cpd | monocarboxylic acid | antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor; prodrug |
| pomiferin | pomiferin: structure in first source | isoflavanones | |
| ppm 18 | naphthoquinone | ||
| pyroxamide | aromatic amide | ||
| suberoyl bis-hydroxamic acid | suberoyl bis-hydroxamic acid: antineoplastic, Histone Deacetylase inhibitor | hydroxamic acid | |
| scriptaid | scriptide: provokes translocation of GLUT4 to increase glucose uptake; structure in first source | isoquinolines | |
| 4-phenylbutyric acid, sodium salt | sodium phenylbutyrate : The organic sodium salt of 4-phenylbutyric acid. A prodrug for phenylacetate, it is used to treat urea cycle disorders. | organic sodium salt | EC 3.5.1.98 (histone deacetylase) inhibitor; geroprotector; neuroprotective agent; orphan drug; prodrug |
| fenofibrate | benzochromenone; delta-lactone; naphtho-alpha-pyrone | platelet aggregation inhibitor; Sir2 inhibitor | |
| imatinib | aromatic amine; benzamides; N-methylpiperazine; pyridines; pyrimidines | antineoplastic agent; apoptosis inducer; tyrosine kinase inhibitor | |
| vorinostat | vorinostat : A dicarboxylic acid diamide comprising suberic (octanedioic) acid coupled to aniline and hydroxylamine. A histone deacetylase inhibitor, it is marketed under the name Zolinza for the treatment of cutaneous T cell lymphoma (CTCL). Vorinostat: A hydroxamic acid and anilide derivative that acts as a HISTONE DEACETYLASE inhibitor. It is used in the treatment of CUTANEOUS T-CELL LYMPHOMA and SEZARY SYNDROME. | dicarboxylic acid diamide; hydroxamic acid | antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor |
| thiram | thiram : An organic disulfide that results from the formal oxidative dimerisation of N,N-dimethyldithiocarbamic acid. It is widely used as a fungicidal seed treatment. Thiram: A dithiocarbamate chemical, used commercially in the rubber processing industry and as a fungicide. In vivo studies indicate that it inactivates the enzyme GLUTATHIONE REDUCTASE. It has mutagenic activity and may induce chromosomal aberrations. | organic disulfide | antibacterial drug; antifungal agrochemical; antiseptic drug |
| uridine diphosphate | Uridine Diphosphate: A uracil nucleotide containing a pyrophosphate group esterified to C5 of the sugar moiety. | pyrimidine ribonucleoside 5'-diphosphate; uridine 5'-phosphate | Escherichia coli metabolite; mouse metabolite |
| benzoxazolone | 2-benzoxazolinone : A member of the class of benzoxazoles that is 2,3-dihydro-1,3-benzoxazole carrying an oxo group at position 2. benzoxazolone: RN given refers to parent cpd; structure | benzoxazole | allelochemical; phytoalexin |
| benzylamine | aminotoluene : Any member of the class of toluenes carrying one or more amino groups. | aralkylamine; primary amine | allergen; EC 3.5.5.1 (nitrilase) inhibitor; plant metabolite |
| benzohydroxamic acid | |||
| acetylcysteine | N-acetyl-L-cysteine : An N-acetyl-L-amino acid that is the N-acetylated derivative of the natural amino acid L-cysteine. | acetylcysteine; L-cysteine derivative; N-acetyl-L-amino acid | antidote to paracetamol poisoning; antiinfective agent; antioxidant; antiviral drug; ferroptosis inhibitor; geroprotector; human metabolite; mucolytic; radical scavenger; vulnerary |
| camptothecin | NSC 100880: carboxylate (opened lactone) form of camptothecin; RN refers to (S)-isomer; structure given in first source | delta-lactone; pyranoindolizinoquinoline; quinoline alkaloid; tertiary alcohol | antineoplastic agent; EC 5.99.1.2 (DNA topoisomerase) inhibitor; genotoxin; plant metabolite |
| 2,3-dihydroxypyridine | 2,3-dihydroxypyridine: affects thyroid function pyridine-2,3-diol : A dihydroxypyridine in which the two hydroxy groups are located at positions 2 and 3. | dihydroxypyridine | |
| 4-nitrobenzylamine | 4-nitrobenzylamine: RN given refers to parent cpd | ||
| daunorubicin | anthracycline : 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 |
| 4-ethynylbiphenyl | 4-ethynylbiphenyl: structure given in first source | ||
| lovastatin | lovastatin : A fatty acid ester that is mevastatin carrying an additional methyl group on the carbobicyclic skeleton. It is used in as an anticholesteremic drug and has been found in fungal species such as Aspergillus terreus and Pleurotus ostreatus (oyster mushroom). Lovastatin: A fungal metabolite isolated from cultures of Aspergillus terreus. The compound is a potent anticholesteremic agent. It inhibits 3-hydroxy-3-methylglutaryl coenzyme A reductase (HYDROXYMETHYLGLUTARYL COA REDUCTASES), which is the rate-limiting enzyme in cholesterol biosynthesis. It also stimulates the production of low-density lipoprotein receptors in the liver. | delta-lactone; fatty acid ester; hexahydronaphthalenes; polyketide; statin (naturally occurring) | anticholesteremic drug; antineoplastic agent; Aspergillus metabolite; prodrug |
| atorvastatin | aromatic amide; dihydroxy monocarboxylic acid; monofluorobenzenes; pyrroles; statin (synthetic) | environmental contaminant; xenobiotic | |
| bendamustine | benzimidazoles | ||
| 4-fluorobenzylamine | |||
| nicotinohydroxamic acid | pyridinecarboxamide | ||
| ubenimex | ubenimex: growth inhibitor | ||
| 4-pyridylmethylamine | 4-pyridylmethylamine: structure given in first source | ||
| osajin | osajin: from Maclura pomifera | isoflavanones | |
| 8-mercaptoquinoline | 8-mercaptoquinoline: structure given in first source | ||
| 2-ethynylnaphthalene | 2-ethynylnaphthalene: RN given refers to unlabeled parent cpd | ||
| di-n-desethylamiodarone | di-N-desethylamiodarone: amiodarone metabolite in dogs; structure given in first source | ||
| przewaquinone d | przewaquinone D: isolated from root of Salvia przewalskii; structure given in first source; RN given refers to the trans- isomer, przewaquinone D | ||
| zm 241385 | ZM 241385: a high affinity radioligand selective for the A2a adenosine receptor | diamino-1,3,5-triazine | |
| lapatinib | furans; organochlorine compound; organofluorine compound; quinazolines | antineoplastic agent; tyrosine kinase inhibitor | |
| N-hydroxy-2-phenylacetamide | acetamides | ||
| n-hydroxy-2,2-diphenylacetamide | N-hydroxy-2,2-diphenylacetamide: a class IIa HDAC inhibitor; structure in first source | ||
| bortezomib | amino acid amide; L-phenylalanine derivative; pyrazines | antineoplastic agent; antiprotozoal drug; protease inhibitor; proteasome inhibitor | |
| trapoxin a | trapoxin B: from Helicoma ambiens; structure given in first source | ||
| actinonin | actinonin: natural hydroxamic acid, pseudopeptide antibiotic isolated from Streptomyces species; structure | ||
| e-z cinnamic acid | cinnamic acid : A monocarboxylic acid that consists of acrylic acid bearing a phenyl substituent at the 3-position. It is found in Cinnamomum cassia. trans-cinnamic acid : The E (trans) isomer of cinnamic acid | cinnamic acid | plant metabolite |
| trichostatin a | trichostatin A: chelates zinc ion in the active site of histone deacetylases, resulting in preventing histone unpacking so DNA is less available for transcription; do not confuse with TRICHOSANTHIN which is a protein; found in STREPTOMYCES | antibiotic antifungal agent; hydroxamic acid; trichostatin | bacterial metabolite; EC 3.5.1.98 (histone deacetylase) inhibitor; geroprotector |
| caffeic acid | trans-caffeic acid : The trans-isomer of caffeic acid. | caffeic acid | geroprotector; mouse metabolite |
| curcumin | curcumin : 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 |
| chlorogenic acid | caffeoylquinic acid: Antiviral Agent; structure in first source chlorogenate : A monocarboxylic acid anion that is the conjugate base of chlorogenic acid; major species at pH 7.3. | cinnamate ester; tannin | food component; plant metabolite |
| zd 6474 | CH 331: structure in first source | aromatic ether; organobromine compound; organofluorine compound; piperidines; quinazolines; secondary amine | antineoplastic agent; tyrosine kinase inhibitor |
| desmethylanethol trithione | desmethylanethol trithione: metabolite of anethol trithione; structure given in first source | ||
| 5-chloro-7-[(4-ethyl-1-piperazinyl)-(3-pyridinyl)methyl]-8-quinolinol | organochlorine compound; quinolines | ||
| ex 527 | 6-chloro-2,3,4,9-tetrahydro-1H-carbazole-1-carboxamide : A member of the class of carbazoles that is 2,3,4,9-tetrahydro-1H-carbazole which is substituted at position 1 by an aminocarbohyl group and at position 6 by a chlorine. 6-chloro-2,3,4,9-tetrahydro-1H-carbazole-1-carboxamide: structure in first source | carbazoles; monocarboxylic acid amide; organochlorine compound | |
| sodium butyrate | organic sodium salt | EC 3.5.1.98 (histone deacetylase) inhibitor; geroprotector | |
| 5'-o-caffeoylquinic acid | trans-5-O-caffeoyl-D-quinic acid : A cinnamate ester obtained by formal condensation of the carboxy group of trans-caffeic acid with the 5-hydroxy group of quinic acid. | cinnamate ester; cyclitol carboxylic acid | plant metabolite |
| harmine | harmine : A harmala alkaloid in which the harman skeleton is methoxy-substituted at C-7. Harmine: Alkaloid isolated from seeds of PEGANUM HARMALA; ZYGOPHYLLACEAE. It is identical to banisterine, or telepathine, from Banisteria caapi and is one of the active ingredients of hallucinogenic drinks made in the western Amazon region from related plants. It has no therapeutic use, but (as banisterine) was hailed as a cure for postencephalitic PARKINSON DISEASE in the 1920's. | harmala alkaloid | anti-HIV agent; EC 1.4.3.4 (monoamine oxidase) inhibitor; metabolite |
| aureusidin | aureusidin : A hydroxyaurone that is aurone substituted by hydroxy groups at positions 4, 6, 3' and 4' respectively. aureusidin: structure in first source | hydroxyaurone | plant metabolite |
| romidepsin | depsipeptide : A natural or synthetic compound having a sequence of amino and hydroxy carboxylic acid residues (usually alpha-amino and alpha-hydroxy acids), commonly but not necessarily regularly alternating. | cyclodepsipeptide; heterocyclic antibiotic; organic disulfide | antineoplastic agent; EC 3.5.1.98 (histone deacetylase) inhibitor |
| carboxycinnamic acid bishydroxamide | carboxycinnamic acid bishydroxamide: inhibits histone decacetylase I & 3; structure in first source | ||
| cinnamoylhydroxamic acid | cinnamoylhydroxamic acid: RN given refers to parent cpd | ||
| urolithin d | urolithin D: has antiproliferative activity; structure in first source | hydroxycoumarin | |
| 3',4'-dihydroxyaurone | 3',4'-dihydroxyaurone : A hydroxyaurone that is aurone which is substituted by hydroxy groups at the 3' and 4' positions; major species at pH 7.3. It shows inhibitory activity against several isoforms of the histone deacetylase complex (HDAC). | catechols; hydroxyaurone | EC 3.5.1.98 (histone deacetylase) inhibitor |
| psammaplin a | psammaplin A: isolated from marine sponges Poecillastra and Jaspis; structure in second source | ||
| trichostatin c | trichostatin C: glycosylated trichostatin A; structure given in first source; do not confuse with TRICHOSANTHIN | O-amino sugar; trichostatin | |
| laq824 | LAQ824: Histone deacetylase inhibitor | ||
| indigo carmine | 3,5-di-O-(E)-caffeoylquinic acid: from roots of Lychnophora ericoides; structure in first source 3,5-di-O-caffeoyl quinic acid : A carboxylic ester that is the diester obtained by the condensation of the hydroxy groups at positions 3 and 5 of (-)-quinic acid with the carboxy group of trans-caffeic acid. Isolated from Brazilian propolis and Suaeda glauca, it exhibits hepatoprotective and cytotoxic activities. | ||
| tanespimycin | CP 127374: analog of herbimycin A | 1,4-benzoquinones; ansamycin; carbamate ester; organic heterobicyclic compound; secondary amino compound | antineoplastic agent; apoptosis inducer; Hsp90 inhibitor |
| pd 404182 | |||
| tubacin | tubacin: inhibits histone deacetylase 6; structure in first source | 1,3-oxazoles | |
| (3S,6S,9S,12R)-3-[(2S)-Butan-2-yl]-6-[(1-methoxyindol-3-yl)methyl]-9-(6-oxooctyl)-1,4,7,10-tetrazabicyclo[10.4.0]hexadecane-2,5,8,11-tetrone | oligopeptide | ||
| belinostat | hydroxamic acid; olefinic compound; sulfonamide | antineoplastic agent; EC 3.5.1.98 (histone deacetylase) inhibitor | |
| sk-7041 | SK-7041: an antineoplastic agent; structure in first source | ||
| panobinostat | panobinostat : A hydroxamic acid obtained by formal condensation of the carboxy group of (2E)-3-[4-({[2-(2-methylindol-3-yl)ethyl]amino}methyl)phenyl]prop-2-enoic acid with the amino group of hydroxylamine. A histone deacetylase inhibitor used (as its lactate salt) in combination with bortezomib and dexamethasone for the treatment of multiple myeloma. Panobinostat: An indole and hydroxamic acid derivative that acts as a HISTONE DEACETYLASE inhibitor. It is used as an antineoplastic agent in combination with BORTEZOMIB and DEXAMETHASONE for the treatment of MULTIPLE MYELOMA. | cinnamamides; hydroxamic acid; methylindole; secondary amino compound | angiogenesis modulating agent; antineoplastic agent; EC 3.5.1.98 (histone deacetylase) inhibitor |
| hdac-42 | HDAC-42: structure in first source | amidobenzoic acid | |
| 4-acetamido-N-(2-amino-5-thiophen-2-ylphenyl)benzamide | benzamides | ||
| n1-(2-aminophenyl)-n7-phenylheptanediamide | |||
| bml 210 | N1-(2-aminophenyl)-N8-phenyloctanediamide: InChIKey: RFLHBLWLFUFFDZ-UHFFFAOYSA-N | dicarboxylic acid diamide | antineoplastic agent; EC 3.5.1.98 (histone deacetylase) inhibitor |
| n-(2-amino-5-fluorobenzyl)-4-(n-(pyridine-3-acrylyl)aminomethyl)benzamide | |||
| givinostat | carbamate ester | ||
| mocetinostat | mocetinostat : A benzamide obtained by formal condensation of the carboxy group of 4-({[4-(pyridin-3-yl)pyrimidin-2-yl]amino}methyl)benzoic acid with one of the amino groups of benzene-1,2-diamine. It is an orally active and isotype-selective HDAC inhibitor which exhibits antitumour activity (IC50 = 0.15, 0.29, 1.66 and 0.59 muM for HDAC1, HDAC2, HDAC3 and HDAC11). mocetinostat: undergoing phase II clinical trials for treatment of cancer | aminopyrimidine; benzamides; pyridines; secondary amino compound; secondary carboxamide; substituted aniline | antineoplastic agent; apoptosis inducer; autophagy inducer; cardioprotective agent; EC 3.5.1.98 (histone deacetylase) inhibitor; hepatotoxic agent |
| 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 | ||
| methyl 3,5-di-o-caffeoyl quinate | 3,5-dicaffeoylquinic acid methyl ester: results suggest that the effect of 3,5-dicaffeoylquinic esters on CHS is associated with a decrease in the production of interleukins, but not with the inhibition of iNOS expression. Moreover, esterification of the carboxyl group at C-1 enhanced protection against tyrosine nitration in the skin methyl 3,5-di-O-caffeoyl quinate : A methyl ester resulting from the formal condensation of the carboxy group of 3,5-di-O-caffeoyl quinic acid with methanol. Isolated from Suaeda glauca and Dichrocephala bicolor, it exhibits hepatoprotective activity. | ||
| r 306465 | |||
| luotonin a | luotonin A: structure in first source | quinazolines | |
| di-2-pyridylketone-4,4-dimethyl-3-thiosemicarbazone | |||
| spiruchostatin a | spiruchostatin A: a potent histone deacetylase inhibitor; structure in first source | ||
| nutlin-3a | nutlin 3: an MDM2 antagonist; structure in first source | stilbenoid | |
| psoralenoside | psoralenoside: structure in first source | ||
| quisinostat | indoles | ||
| resminostat | resminostat: a histone deacetylase inhibitor; structure in first source | ||
| abexinostat | abexinostat: structure in first source | benzofurans | |
| chidamide | benzamides | ||
| hc toxin | |||
| azumamide e | azumamide E: a natural cyclic tetrapeptide isolated from marine sponge Mycale izuensis; histone deacetylase inhibitor; structure in first source | ||
| cnf 2024 | 2-aminopurines; aromatic ether; organochlorine compound; pyridines | antineoplastic agent; Hsp90 inhibitor | |
| N-(2-aminophenyl)-2-pyrazinecarboxamide | aromatic amide | ||
| kd 5170 | KD 5170: a histone deacetylase inhibitor; structure in first source | ||
| pci 34051 | PCI 34051: an HDAC8 inhibitor | indolecarboxamide | |
| cudc 101 | 7-(4-(3-ethynylphenylamino)-7-methoxyquinazolin-6-yloxy)-N-hydroxyheptanamide: a histone deacetylase inhibitor; structure in first source | ||
| largazole | largazole: an antiproliferative agent from Symploca; structure in first source | ||
| N-[4-[3-[[[7-(hydroxyamino)-7-oxoheptyl]amino]-oxomethyl]-5-isoxazolyl]phenyl]carbamic acid tert-butyl ester | CAY10603: a HDAC6 inhibitor | carbamate ester | |
| trichostatin rk | trichostatin RK: from Streptomyces sp. RK98-A74.; structure in first source | ||
| jq1 compound | carboxylic 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 | |
| tubastatin a | hydroxamic acid; pyridoindole; tertiary amino compound | EC 3.5.1.98 (histone deacetylase) inhibitor | |
| pracinostat | pracinostat : A hydroxamic acid that is N-hydroxyacrylamide which is substituted at position 3 by a 2-butyl-1-[2-(diethylamino)ethyl]-1H-benzimidazol-5-yl group (the E isomer). An orally available pan-histone deacetylase inhibitor with demonstrated activity in the treatment of advanced solid tumours. | benzimidazole; hydroxamic acid; olefinic compound; tertiary amino compound | antimalarial; antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor |
| acy-1215 | ricolinostat: an HDAC6 inhibitor; structure in first source | pyrimidinecarboxylic acid | |
| cudc-907 | |||
| rgfp966 | |||
| rg2833 | RG2833: a histone deacetylase inhibitor; structure in first source | ||
| mi-192 | MI-192: histone deacetylase 2 and 3 inhibitor; structure in first source | ||
| acy-738 | |||
| 2-((1-(3-fluorophenyl)cyclohexyl)amino)-n-hydroxypyrimidine-5-carboxamide | |||
| epz-6438 | tazemetostat: a histone methyltransferase EZH2 inhibitor with antineoplastic activity | ||
| gsk343 | GSK343 : A member of the class of indazoles that is 1-isopropyl-1H-indazole-4-carboxamide in which the nitrogen of the carboxamide group is substituted by a (6-methyl-2-oxo-4-propyl-1,2-dihydropyridin-3-yl)methyl group and in which the indazole ring is substituted at position 6 by a 2-(4-methylpiperazin-1-yl)pyridin-4-yl group. A highly potent and selective EZH2 inhibitor (IC50 = 4 nM). GSK343: an EZH2 methyltransferase inhibitor | aminopyridine; indazoles; N-alkylpiperazine; N-arylpiperazine; pyridone; secondary carboxamide | antineoplastic agent; apoptosis inducer; EC 2.1.1.43 (enhancer of zeste homolog 2) inhibitor |
| 4-((1-butyl-3-phenylureido)methyl)-n-hydroxybenzamide | 4-((1-butyl-3-phenylureido)methyl)-N-hydroxybenzamide: inhibits HDAC6; structure in first source | ||
| osimertinib | osimertinib : A member of the class of aminopyrimidines that is 4-(1-methylindol-3-yl)pyrimidin-2-amine in which one of the amino hydrogens is replaced by a 2-methoxy-4-[2-(dimethylamino)ethyl](methyl)amino-5-acrylamidophenyl group. Used (as the mesylate salt) for treatment of EGFR T790M mutation positive non-small cell lung cancer. osimertinib: an EGFR tyrosine kinase inhibitor | acrylamides; aminopyrimidine; biaryl; indoles; monomethoxybenzene; secondary amino compound; secondary carboxamide; substituted aniline; tertiary amino compound | antineoplastic agent; epidermal growth factor receptor antagonist |
| santacruzamate a | santacruzamate A: HDAC2 inhibitor from the Panamanian marine cyanobacterium cf. Symploca sp.; structure in first source | organonitrogen compound; organooxygen compound | |
| tetrahydroamentoflavone | tetrahydroamentoflavone: isolated from Semecarpus anacardium; structure in first source |