Target type: biologicalprocess
The developmental process, independent of morphogenetic (shape) change, that is required for a columna/cuboidal epithelial cell of the intestine to attain its fully functional state. A columnar/cuboidal epithelial cell of the intestine mature as they migrate from the intestinal crypt to the villus. [GOC:dph, PMID:18824147]
Intestinal epithelial cell maturation is a complex and dynamic process that involves the coordinated regulation of multiple signaling pathways and gene expression programs. It is a crucial event for maintaining the integrity and function of the intestinal epithelium, which acts as a barrier between the external environment and the internal milieu of the body.
The process starts with the proliferation of stem cells located at the base of intestinal crypts. These stem cells give rise to transit-amplifying cells that undergo a series of mitotic divisions as they migrate upwards towards the villus tip.
During their migration, these cells progressively differentiate into various specialized cell types, including absorptive enterocytes, goblet cells, enteroendocrine cells, and Paneth cells. This differentiation process is regulated by various intrinsic and extrinsic factors, including Wnt signaling, Notch signaling, and growth factors.
Wnt signaling plays a key role in maintaining stem cell identity and promoting cell proliferation. As cells move away from the crypt base, Wnt signaling decreases, leading to a decrease in proliferation and the initiation of differentiation.
Notch signaling, on the other hand, is involved in regulating cell fate decisions. Notch activation in transit-amplifying cells leads to the formation of secretory cell types, such as goblet cells and enteroendocrine cells.
Growth factors, such as epidermal growth factor (EGF) and fibroblast growth factor (FGF), also play a role in regulating cell proliferation and differentiation.
In addition to these signaling pathways, numerous transcription factors, including Cdx2, GATA4, and Sox9, regulate gene expression programs that drive the specific differentiation of intestinal epithelial cells.
As cells mature, they acquire the ability to perform their specialized functions. Enterocytes, for example, develop microvilli and express enzymes and transporters involved in nutrient absorption. Goblet cells synthesize and secrete mucus, which acts as a protective barrier. Enteroendocrine cells produce hormones that regulate digestive processes. And Paneth cells secrete antimicrobial peptides that contribute to the intestinal immune defense.
The maturation process is tightly regulated, ensuring that the intestinal epithelium is constantly renewed and maintains its functional integrity. Defects in this process can lead to various intestinal disorders, such as inflammatory bowel disease and colorectal cancer.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| Hypoxia-inducible factor 1-alpha | A hypoxia-inducible factor 1-alpha that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q16665] | Homo sapiens (human) |
| Thymidylate synthase | A thymidylate synthase that is encoded in the genome of human. [PRO:DNx, UniProtKB:P04818] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| ciclopirox | cyclic hydroxamic acid; hydroxypyridone antifungal drug; pyridone | antibacterial agent; antiseborrheic | |
| deferoxamine | Deferoxamine: Natural product isolated from Streptomyces pilosus. It forms iron complexes and is used as a chelating agent, particularly in the mesylate form. desferrioxamine B : An acyclic desferrioxamine that is butanedioic acid in which one of the carboxy groups undergoes formal condensation with the primary amino group of N-(5-aminopentyl)-N-hydroxyacetamide and the second carboxy group undergoes formal condensation with the hydroxyamino group of N(1)-(5-aminopentyl)-N(1)-hydroxy-N(4)-[5-(hydroxyamino)pentyl]butanediamide. It is a siderophore native to Streptomyces pilosus biosynthesised by the DesABCD enzyme cluster as a high affinity Fe(III) chelator. | acyclic desferrioxamine | bacterial metabolite; ferroptosis inhibitor; iron chelator; siderophore |
| carbonyl cyanide p-trifluoromethoxyphenylhydrazone | carbonyl cyanide p-trifluoromethoxyphenylhydrazone : A hydrazone that is hydrazonomalononitrile in which one of the hydrazine hydrogens is substituted by a p-trifluoromethoxyphenyl group. Carbonyl Cyanide p-Trifluoromethoxyphenylhydrazone: A proton ionophore that is commonly used as an uncoupling agent in biochemical studies. | aromatic ether; hydrazone; nitrile; organofluorine compound | ATP synthase inhibitor; geroprotector; ionophore |
| phenolphthalein | Phenolphthalein: An acid-base indicator which is colorless in acid solution, but turns pink to red as the solution becomes alkaline. It is used medicinally as a cathartic. | phenols | |
| trimethoprim | trimethoprim : An aminopyrimidine antibiotic whose structure consists of pyrimidine 2,4-diamine and 1,2,3-trimethoxybenzene moieties linked by a methylene bridge. Trimethoprim: A pyrimidine inhibitor of dihydrofolate reductase, it is an antibacterial related to PYRIMETHAMINE. It is potentiated by SULFONAMIDES and the TRIMETHOPRIM, SULFAMETHOXAZOLE DRUG COMBINATION is the form most often used. It is sometimes used alone as an antimalarial. TRIMETHOPRIM RESISTANCE has been reported. | aminopyrimidine; methoxybenzenes | antibacterial drug; diuretic; drug allergen; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; environmental contaminant; xenobiotic |
| 3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole | 3-(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 |
| strophanthidin | Strophanthidin: 3 beta,5,14-Trihydroxy-19-oxo-5 beta-card-20(22)-enolide. The aglycone cardioactive agent isolated from Strophanthus Kombe, S. gratus and other species; it is a very toxic material formerly used as digitalis. Synonyms: Apocymarin; Corchorin; Cynotoxin; Corchorgenin. | 14beta-hydroxy steroid; 19-oxo steroid; 3beta-hydroxy steroid; 5beta-hydroxy steroid; cardenolides; steroid aldehyde | |
| cycloheximide | cycloheximide : A dicarboximide that is 4-(2-hydroxyethyl)piperidine-2,6-dione in which one of the hydrogens attached to the carbon bearing the hydroxy group is replaced by a 3,5-dimethyl-2-oxocyclohexyl group. It is an antibiotic produced by the bacterium Streptomyces griseus. Cycloheximide: Antibiotic substance isolated from streptomycin-producing strains of Streptomyces griseus. It acts by inhibiting elongation during protein synthesis. | antibiotic fungicide; cyclic ketone; dicarboximide; piperidine antibiotic; piperidones; secondary alcohol | anticoronaviral agent; bacterial metabolite; ferroptosis inhibitor; neuroprotective agent; protein synthesis inhibitor |
| 1,8-naphthalenedicarboxylic acid anhydride | 1,8-naphthalenedicarboxylic acid anhydride: used as seed protector from herbicides | cyclic dicarboxylic anhydride | |
| acriflavine chloride | 3,6-diamino-10-methylacridinium chloride : The 10-methochloride salt of 3,6-diaminoacridine. Note that a mixture of this compound with 3,6-diaminoacridine (proflavine) is known as acriflavine or neutral acriflavine. | organic chloride salt | antibacterial agent; antiseptic drug; carcinogenic agent; histological dye; intercalator |
| fluorodeoxyuridylate | Fluorodeoxyuridylate: 5-Fluoro-2'-deoxyuridylate. An inhibitor of thymidylate synthetase. Formed from 5-fluorouracil or 5-fluorodeoxyuridine. | pyrimidine 2'-deoxyribonucleoside 5'-monophosphate | |
| emetine | emetine : A pyridoisoquinoline comprising emetam having methoxy substituents at the 6'-, 7'-, 10- and 11-positions. It is an antiprotozoal agent and emetic. It inhibits SARS-CoV2, Zika and Ebola virus replication and displays antimalarial, antineoplastic and antiamoebic properties. Emetine: The principal alkaloid of ipecac, from the ground roots of Uragoga (or Cephaelis) ipecacuanha or U. acuminata, of the Rubiaceae. It is used as an amebicide in many different preparations and may cause serious cardiac, hepatic, or renal damage and violent diarrhea and vomiting. Emetine inhibits protein synthesis in EUKARYOTIC CELLS but not PROKARYOTIC CELLS. | isoquinoline alkaloid; pyridoisoquinoline | antiamoebic agent; anticoronaviral agent; antiinfective agent; antimalarial; antineoplastic agent; antiprotozoal drug; antiviral agent; autophagy inhibitor; emetic; expectorant; plant metabolite; protein synthesis inhibitor |
| phenethyl isothiocyanate | phenethyl isothiocyanate : An isothiocyanate having a phenethyl group attached to the nitrogen. It is a naturally occurring compound found in some cruciferous vegetables (e.g. watercress) and is known to possess anticancer properties. phenethyl isothiocyanate: a dietary liver aldehyde dehydrogenase inhibitor; promotes urinary bladder carcinoma | isothiocyanate | antineoplastic agent; EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor; metabolite |
| topotecan | topotecan : A pyranoindolizinoquinoline used as an antineoplastic agent. It is a derivative of camptothecin and works by binding to the topoisomerase I-DNA complex and preventing religation of these 328 single strand breaks. Topotecan: An antineoplastic agent used to treat ovarian cancer. It works by inhibiting DNA TOPOISOMERASES, TYPE I. | pyranoindolizinoquinoline | antineoplastic agent; EC 5.99.1.2 (DNA topoisomerase) inhibitor |
| ursolic acid | hydroxy monocarboxylic acid; pentacyclic triterpenoid | geroprotector; plant metabolite | |
| 2'-deoxyuridylic acid | 2'-deoxyuridylic acid: RN given refers to parent cpd | deoxyuridine phosphate; pyrimidine 2'-deoxyribonucleoside 5'-monophosphate | Escherichia coli metabolite; metabolite; mouse metabolite |
| panaxadiol | panaxadiol: a protopanaxadiol with the side chain cyclized into a pyran which is an artifact of acidic hydrolysis; RN refers to (3 beta,12 beta,20R)-isomer | triterpenoid saponin | |
| cryptopleurine | cryptopleurine : An organic heteropentacyclic compound that is (14aR)-11,12,13,14,14a,15-hexahydro-9H-dibenzo[f,h]pyrido[1,2-b]isoquinoline substituted at positions 2, 3 and 6 by methoxy groups. cryptopleurine: plant bark alkaloid shown to inhibit protein synthesis; RN given refers to (R)-isomer; structure | alkaloid; alkaloid antibiotic; aromatic ether; organic heteropentacyclic compound | antineoplastic agent; antiviral agent; protein synthesis inhibitor |
| dansyl hydrazine | |||
| tanshinone | tanshinone: from root of Salvia miltiorrhiza Bunge; RN given refers to tanshinone I; cardioprotective agent and neuroprotective agent | abietane diterpenoid | anticoronaviral agent |
| celastrol | monocarboxylic acid; pentacyclic triterpenoid | anti-inflammatory drug; antineoplastic agent; antioxidant; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; Hsp90 inhibitor; metabolite | |
| xestoquinone | xestoquinone: structure given in first source; RN given refers to the (S)-isomer; RN for cpd without isomeric designation not available 5/91; isolated from the sea sponge Xestospongia sapra | ||
| methotrexate | dicarboxylic acid; monocarboxylic acid amide; pteridines | abortifacient; antimetabolite; antineoplastic agent; antirheumatic drug; dermatologic drug; DNA synthesis inhibitor; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; immunosuppressive agent | |
| gl 331 | GL 331: structure in first source | ||
| tanshinone vi | tanshinone VI: isolated from the root of Salvia miltiorrhiza; structure in first source | ||
| n-(4-(n-((2,4-diaminofuro(2,3-d)pyrimidin-5-yl)methyl)amino)benzoyl)glutamic acid | N-(4-(N-((2,4-diaminofuro(2,3-d)pyrimidin-5-yl)methyl)amino)benzoyl)glutamic acid: structure given in first source | ||
| n-4-hydroxy-2'-deoxycytidylic acid | N-4-hydroxy-2'-deoxycytidylic acid: reversibly binds to thymidylate synthetase | ||
| cryptotanshinone | cryptotanshinone: from Salvia miltiorrhiza | abietane diterpenoid | anticoronaviral agent |
| tanshinone ii a | tashinone IIA: a cardiovascular agent with antineoplastic activity; isolated from Salvia miltiorrhiza; structure in first source | abietane diterpenoid | |
| moracin m | moracin M: has been isolated from Morus alba L.; structure in first source | benzofurans | |
| convallatoxin | convallatoxin : A cardenolide glycoside that consists of strophanthidin having a 6-deoxy-alpha-L-mannopyranosyl (L-rhamnosyl) group attached at position 3. convallatoxin: PI: *CONVALLARIA (73-79) | 14beta-hydroxy steroid; 19-oxo steroid; 5beta-hydroxy steroid; alpha-L-rhamnoside; steroid aldehyde; steroid lactone | metabolite; vasodilator agent |
| latrunculin a | latrunculin A : A bicyclic macrolide natural product consisting of a 16-membered bicyclic lactone attached to the rare 2-thiazolidinone moiety. It is obtained from the Red Sea sponge Latrunculia magnifica and from the Fiji Islands sponge Cacospongia mycofijiensis. Latrunculin A inhibits actin polymerisation, microfilament organsation and microfilament-mediated processes. latrunculin A: 16-membered macrolide attached to 2-thiazolidinone moiety; from Red Sea sponge Latrunculia magnifica; see also latrunculin B; structure given in first source | cyclic hemiketal; macrolide; oxabicycloalkane; thiazolidinone | actin polymerisation inhibitor; metabolite; toxin |
| flavin mononucleotide | flavin mononucleotide; vitamin B2 | bacterial metabolite; coenzyme; cofactor; human metabolite; mouse metabolite | |
| fm19g11 | FM19G11: structure in first source | benzamides | |
| stattic | 1-benzothiophenes; C-nitro compound; sulfone | antineoplastic agent; radiosensitizing agent; STAT3 inhibitor | |
| vomifoliol | (6S,9R)-vomifoliol : A (6S)-vomifoliol with a R configuration for the hydroxy group at position 9. blumenol A: a phytotoxin isolated from Oryza sativa Awaakamai; structure in first source vomifoliol : A fenchane monoterpenoid that is 3,5,5-trimethylcyclohex-2-en-1-one substituted by a hydroxy and a (1E)-3-hydroxybut-1-en-1-yl group at position 4. | (6S)-vomifoliol | metabolite; phytotoxin |
| mammeisin | neoflavonoid | metabolite | |
| 17-(dimethylaminoethylamino)-17-demethoxygeldanamycin | 17-(dimethylaminoethylamino)-17-demethoxygeldanamycin: structure in first source alvespimycin : A 19-membered macrocyle that is geldanamycin in which the methoxy group attached to the benzoquinone moiety has been replaced by a 2-(N,N-dimethylamino)ethylamino group. | 1,4-benzoquinones; ansamycin; carbamate ester; secondary amino compound; tertiary amino compound | Hsp90 inhibitor |
| bakuchiol | bakuchiol: chief component of Psoralea corylifolia Linn; structure | ||
| chetomin | |||
| manassantin b | manassantin B : A lignan isolated from Saururus cernuus and Saururus chinensis and has been shown to exhibit antineoplastic activity. manassantin B: isolated from the roots of Saururus chinensis; structure in first source | benzodioxoles; dimethoxybenzene; lignan; oxolanes; secondary alcohol | antineoplastic agent; metabolite |
| laurenditerpenol | laurenditerpenol: from the tropical marine alga Laurenciaintricata; potently inhibits HIF-1 mediated hypoxic signaling in breast tumor cells; structure in first source | ||
| px 478 | 2-amino-3-(4'-N,N-bis(2-chloroethyl)amino)phenylpropionic acid N-oxide: inhibits hypoxia-inducible factor-1alpha | ||
| 103d5r | 103D5R: small-molecule inhibitor of the hypoxia-inducible factor 1 pathway; structure in first source | ||
| Dihydrotanshinone I | dihydrotanshinone I: extracted from Radix Salviae | abietane diterpenoid | anticoronaviral agent |
| Moracin P | benzofurans | ||
| 3,4-dimethoxy-n-((2,2-dimethyl-2h-chromen-6-yl)methyl)-n-phenylbenzenesulfonamide | 3,4-dimethoxy-N-((2,2-dimethyl-2H-chromen-6-yl)methyl)-N-phenylbenzenesulfonamide: has antineoplastic activity; structure in first source | ||
| k-strophanthoside | K-strophanthoside: cardiac glycoside extracted from Strophanthus kombe; sugars (glucose-glucose-cymarose) are bonded with strophanthidin | ||
| ml228 probe | ML228 : A member of the class of 1,2,4-triazines in which the triazine ring is substituted at positions 3, 5, and 6 by pyridin-2-yl, ([biphenyl]-4-ylmethyl)amin, and methyl groups, respectively. It is an activator of the hypoxia inducible factor (HIF) pathway. ML228 probe: structure in first source | 1,2,4-triazines; biphenyls; pyridines; secondary amino compound | hypoxia-inducible factor pathway activator |
| 2-(3,4-dimethoxyphenyl)-1-(5-methoxy-2,2-dimethyl-2h-chromen-6-yl)ethanone | 2-(3,4-dimethoxyphenyl)-1-(5-methoxy-2,2-dimethyl-2H-chromen-6-yl)ethanone: an Hsp90 inhibitor; structure in first source | ||
| folic acid | folcysteine: used to promote fertility in chickens vitamin B9 : Any B-vitamin that exhibits biological activity against vitamin B9 deficiency. Vitamin B9 refers to the many forms of folic acid and its derivatives, including tetrahydrofolic acid (the active form), methyltetrahydrofolate (the primary form found in blood), methenyltetrahydrofolate, folinic acid amongst others. They are present in abundance in green leafy vegetables, citrus fruits, and animal products. Lack of vitamin B9 leads to anemia, a condition in which the body cannot produce sufficient number of red blood cells. Symptoms of vitamin B9 deficiency include fatigue, muscle weakness, and pale skin. | folic acids; N-acyl-amino acid | human metabolite; mouse metabolite; nutrient |
| raltitrexed | N-acyl-amino acid | ||
| nolatrexed | nolatrexed: structure given in first source; RN given refers to dihydrochloride | ||
| ici 198583 | ICI 198583: RN & structure given in first source | ||
| n-(4(n-((2-amino-4-hydroxy-6-quinazolinyl)methyl)prop-2-ynylamino)benzoyl)-l-glutamic acid | |||
| 1843u89 | 1843U89: structure given in first source; a folate analog | ||
| 5,11-methenyltetrahydrohomofolate | |||
| makaluvamine f | makaluvamine F: a potent & cytotoxic marine alkaloid; structure in first source | ||
| pemetrexed | pemetrexed disodium : An organic sodium salt that is the disodium salt of N-{4-[2-(2-amino-4-oxo-4,7-dihydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl}-L-glutamic acid. Inhibits thymidylate synthase (TS), 421 dihydrofolate reductase (DHFR), and glycinamide ribonucleotide formyltransferase (GARFT). | N-acyl-L-glutamic acid; pyrrolopyrimidine | antimetabolite; antineoplastic agent; EC 1.5.1.3 (dihydrofolate reductase) inhibitor; EC 2.1.1.45 (thymidylate synthase) inhibitor; EC 2.1.2.2 (phosphoribosylglycinamide formyltransferase) inhibitor |
| n(10)-methylfolate | folic acids | ||
| cb 3717 | N-acyl-L-glutamic acid | ||
| cb 30865 | |||
| ag 85 | AG 85: structure given in first source | ||
| cb 3705 | CB 3705: inhibitor of dihydrofolate reductase & thymidylate synthetase | ||
| 2-desamino-2-methyl-5,8-dideazaisofolic acid | 2-desamino-2-methyl-5,8-dideazaisofolic acid: structure given in first source | ||
| (5)n,(8)n-deaza-(10)-n-methylfolate | (5)N,(8)N-deaza-(10)-N-methylfolate: structure |