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 forskolin stimulus. [GO_REF:0000071, GOC:TermGenie, PMID:15937517]
Forskolin, a diterpene activator of adenylate cyclase, triggers a complex cascade of events within cells leading to a variety of cellular responses. Here is a detailed description of this process:
1. **Adenylate Cyclase Activation:** Forskolin directly binds to and activates adenylate cyclase, an enzyme embedded in the cell membrane. This activation is highly specific, targeting only the catalytic domain of the enzyme.
2. **cAMP Production:** Upon activation, adenylate cyclase catalyzes the conversion of ATP (adenosine triphosphate) into cyclic AMP (cAMP). cAMP acts as a second messenger, relaying the signal from forskolin to downstream signaling pathways.
3. **Protein Kinase A Activation:** Increased intracellular cAMP levels activate protein kinase A (PKA), a key regulatory enzyme in many cellular processes. cAMP binds to the regulatory subunits of PKA, causing their dissociation from the catalytic subunits. This releases the active catalytic subunits, which can then phosphorylate target proteins.
4. **Downstream Signaling Cascades:** Phosphorylation of target proteins by PKA initiates a complex web of signaling cascades, leading to a wide range of cellular responses. These responses can vary depending on the cell type and the specific downstream targets that are activated.
5. **Cellular Responses:** Some common cellular responses to forskolin include:
- **Increased heart rate and contractility:** PKA phosphorylation of proteins in cardiac muscle cells leads to increased calcium influx and stronger contractions.
- **Smooth muscle relaxation:** PKA-mediated phosphorylation of myosin light chain kinase inhibits its activity, resulting in smooth muscle relaxation.
- **Increased hormone secretion:** Forskolin can stimulate the release of various hormones, such as glucagon, insulin, and epinephrine, by activating PKA signaling pathways in endocrine cells.
- **Regulation of gene expression:** PKA can phosphorylate transcription factors, leading to changes in gene expression and cellular function.
- **Cell growth and proliferation:** In certain cell types, forskolin can promote cell growth and proliferation by activating PKA-mediated signaling pathways.
In summary, forskolin triggers a cascade of events initiated by adenylate cyclase activation and cAMP production, leading to the activation of PKA and subsequent modulation of various cellular processes. This complex interplay of signaling pathways ultimately results in a diverse array of cellular responses depending on the specific cell type and target proteins involved.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| Adenylate cyclase type 1 | An adenylate cyclase type 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q08828] | Homo sapiens (human) |
| Adenylate cyclase type 2 | An adenylate cyclase type 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q08462] | Homo sapiens (human) |
| Adenylate cyclase type 8 | An adenylate cyclase type 8 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P40145] | Homo sapiens (human) |
| Aryl hydrocarbon receptor | An aryl hydrocarbon receptor that is encoded in the genome of human. [PRO:DNx, UniProtKB:P35869] | Homo sapiens (human) |
| Cyclic AMP-responsive element-binding protein 1 | A cyclic AMP-responsive element-binding protein 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P16220] | Homo sapiens (human) |
| Cystic fibrosis transmembrane conductance regulator | A cystic fibrosis transmembrane conductance regulator that is encoded in the genome of human. [PRO:CNA, UniProtKB:P13569] | Homo sapiens (human) |
| Adenylate cyclase type 5 | An adenylate cyclase type 5 that is encoded in the genome of human. [PRO:DNx, UniProtKB:O95622] | Homo sapiens (human) |
| Adenylate cyclase type 3 | An adenylate cyclase type 3 that is encoded in the genome of human. [PRO:DNx, UniProtKB:O60266] | Homo sapiens (human) |
| Adenylate cyclase type 6 | An adenylate cyclase type 6 that is encoded in the genome of human. [PRO:DNx, UniProtKB:O43306] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| dibenzofuran | dibenzofuran : A mancude organic heterotricyclic parent that consists of a furan ring flanked by two benzene rings ortho-fused across the 2,3- and 4,5-positions. dibenzofurans : Any organic heterotricyclic compound based on a dibenzofuran skeleton and its substituted derivatives thereof. Dibenzofurans: Compounds that include the structure of dibenzofuran. | dibenzofurans; mancude organic heterotricyclic parent; polycyclic heteroarene | xenobiotic |
| 1,3-dipropyl-8-cyclopentylxanthine | DPCPX : An oxopurine that is 7H-xanthine substituted at positions 1 and 3 by propyl groups and at position 8 by a cyclohexyl group. | oxopurine | adenosine A1 receptor antagonist; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor |
| 3-methylcholanthrene | 3-methylcholanthrene : A pentacyclic ortho- and peri-fused polycyclic arene consisting of a dihydrocyclopenta[ij]tetraphene ring system with a methyl substituent at the 3-position. Methylcholanthrene: A carcinogen that is often used in experimental cancer studies. | ortho- and peri-fused polycyclic arene | aryl hydrocarbon receptor agonist; carcinogenic agent |
| 5,11-dihydroindolo[3,2-b]carbazole-12-carboxaldehyde | indolocarbazole | ||
| theophylline | dimethylxanthine | adenosine receptor antagonist; anti-asthmatic drug; anti-inflammatory agent; bronchodilator agent; drug metabolite; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; fungal metabolite; human blood serum metabolite; immunomodulator; muscle relaxant; vasodilator agent | |
| benzo(a)pyrene | Benzo(a)pyrene: A potent mutagen and carcinogen. It is a public health concern because of its possible effects on industrial workers, as an environmental pollutant, an as a component of tobacco smoke. benzo[a]pyrene : An ortho- and peri-fused polycyclic arene consisting of five fused benzene rings. | ortho- and peri-fused polycyclic arene | carcinogenic agent; mouse metabolite |
| beta-naphthoflavone | beta-naphthoflavone : An extended flavonoid resulting from the formal fusion of a benzene ring with the f side of flavone. beta-Naphthoflavone: A polyaromatic hydrocarbon inducer of P4501A1 and P4501A2 cytochromes. (Proc Soc Exp Biol Med 1994 Dec:207(3):302-308) | extended flavonoid; naphtho-gamma-pyrone; organic heterotricyclic compound | aryl hydrocarbon receptor agonist |
| bisacodyl | Bisacodyl: A diphenylmethane stimulant laxative used for the treatment of CONSTIPATION and for bowel evacuation. (From Martindale, The Extra Pharmacopoeia, 30th ed, p871) | diarylmethane | |
| caffeine | purine alkaloid; trimethylxanthine | adenosine A2A receptor antagonist; adenosine receptor antagonist; adjuvant; central nervous system stimulant; diuretic; EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor; EC 3.1.4.* (phosphoric diester hydrolase) inhibitor; environmental contaminant; food additive; fungal metabolite; geroprotector; human blood serum metabolite; mouse metabolite; mutagen; plant metabolite; psychotropic drug; ryanodine receptor agonist; xenobiotic | |
| glyburide | glyburide : An N-sulfonylurea that is acetohexamide in which the acetyl group is replaced by a 2-(5-chloro-2-methoxybenzamido)ethyl group. Glyburide: An antidiabetic sulfonylurea derivative with actions like those of chlorpropamide | monochlorobenzenes; N-sulfonylurea | anti-arrhythmia drug; EC 2.7.1.33 (pantothenate kinase) inhibitor; EC 3.6.3.49 (channel-conductance-controlling ATPase) inhibitor; hypoglycemic agent |
| kynurenic acid | kynurenic acid : A quinolinemonocarboxylic acid that is quinoline-2-carboxylic acid substituted by a hydroxy group at C-4. Kynurenic Acid: A broad-spectrum excitatory amino acid antagonist used as a research tool. | monohydroxyquinoline; quinolinemonocarboxylic acid | G-protein-coupled receptor agonist; human metabolite; neuroprotective agent; nicotinic antagonist; NMDA receptor antagonist; Saccharomyces cerevisiae metabolite |
| methionine | methionine : A sulfur-containing amino acid that is butyric acid bearing an amino substituent at position 2 and a methylthio substituent at position 4. Methionine: A sulfur-containing essential L-amino acid that is important in many body functions. | aspartate family amino acid; L-alpha-amino acid; methionine; methionine zwitterion; proteinogenic amino acid | antidote to paracetamol poisoning; human metabolite; micronutrient; mouse metabolite; nutraceutical |
| methyl anthranilate | methyl anthranilate : A benzoate ester that is the methyl ester of anthranilic acid. | benzoate ester | flavouring agent; metabolite |
| indigo | hydroxyindoles | ||
| 2,3,7,8-tetrachlorodibenzodioxine | Tetrachlorodibenzodioxin: A mixture of isomers. | polychlorinated dibenzodioxine | |
| 2,4,2',4'-tetrachlorobiphenyl | 2,2',4,4'-tetrachlorobiphenyl : A tetrachlorobiphenyl that is biphenyl in which each of the phenyl groups is substituted at positions 2 and 4 by chlorines. 2,4,2',4'-tetrachlorobiphenyl: structure | dichlorobenzene; tetrachlorobiphenyl | |
| octachlorodibenzo-4-dioxin | octachlorodibenzo-4-dioxin: RN given refers to unlabeled parent cpd | polychlorinated dibenzodioxine | |
| 2-chlorodibenzofuran | 2-chlorodibenzofuran: structure | ||
| 1,2,3,4-tetrachlorodibenzodioxin | 1,2,3,4-tetrachlorodibenzodioxin: structure given in first source | polychlorinated dibenzodioxine | |
| pcb 118 | dichlorobenzene; pentachlorobiphenyl; trichlorobenzene | ||
| 3,4,3',4'-tetrachlorobiphenyl | 3,3',4,4'-tetrachlorobiphenyl : A tetrachlorobiphenyl that is biphenyl in which the hydrogens at position 3 and 4 on each phenyl group are replaced by chlorines. 3,4,3',4'-tetrachlorobiphenyl: RN given refers to parent cpd | dichlorobenzene; tetrachlorobiphenyl | |
| 2,3,3',4,4'-pentachlorobiphenyl | dichlorobenzene; pentachlorobiphenyl; trichlorobenzene | ||
| 2,3,4,5-tetrachlorobiphenyl | tetrachlorobiphenyl : Any polychlorobiphenyl with molecular formula C12H6Cl4. | tetrachlorobenzene; tetrachlorobiphenyl | |
| 1,2,7,8-tetrachlorodibenzo-p-dioxin | 1,2,7,8-tetrachlorodibenzo-p-dioxin: structure in first source | ||
| 2,4,5,2',4',5'-hexachlorobiphenyl | hexachlorobiphenyl | ||
| 2,3,3',4,4',5-hexachlorobiphenyl | dichlorobenzene; hexachlorobiphenyl; tetrachlorobenzene | ||
| 2,8-dichlorodibenzo-4-dioxin | 2,8-dichlorodibenzo-4-dioxin: metabolite for 2,3,7,8-TCDD | ||
| 1,2,3,4,7,8-hexachlorodibenzodioxin | 1,2,3,4,7,8-hexachlorodibenzodioxin: structure given in first source | polychlorinated dibenzodioxine | |
| 1,2,4-trichlorodibenzo-1,4-dioxin | 1,2,4-trichlorodibenzo-1,4-dioxin: structure given in first source | ||
| 1,2,3,7,8-pentachlorodibenzo-p-dioxin | polychlorinated dibenzodioxine | ||
| 2,3,7,8-tetrabromodibenzo-4-dioxin | 2,3,7,8-tetrabromodibenzo-4-dioxin: structure given in first source 2,3,7,8-tetrabromodibenzodioxine : An organobromine compound that is dibenzodioxine carrying four bromo substituents at positions 2, 3, 7 and 8. | dibenzodioxine; organobromine compound | |
| 2,3,7,8-tetrachlorodibenzofuran | 2,3,7,8-tetrachlorodibenzofuran: toxic product which was generated in Italy due to an explosion in a plant manufacturing 2,4,5-trichlorophenol | polychlorinated dibenzofuran | |
| 2,3,4,7,8-pentachlorodibenzofuran | 2,3,4,7,8-pentachlorodibenzofuran: structure given in first source | polychlorinated dibenzofuran | |
| 1,2,3,7,8-pentachlorodibenzofuran | 1,2,3,7,8-pentachlorodibenzofuran: structure given in first source; RN given refers to parent cpd | polychlorinated dibenzofuran | |
| colforsin | Colforsin: Potent activator of the adenylate cyclase system and the biosynthesis of cyclic AMP. From the plant COLEUS FORSKOHLII. Has antihypertensive, positive inotropic, platelet aggregation inhibitory, and smooth muscle relaxant activities; also lowers intraocular pressure and promotes release of hormones from the pituitary gland. | acetate ester; cyclic ketone; labdane diterpenoid; organic heterotricyclic compound; tertiary alpha-hydroxy ketone; triol | adenylate cyclase agonist; anti-HIV agent; antihypertensive agent; plant metabolite; platelet aggregation inhibitor; protein kinase A agonist |
| 1,2,3,4,7,8-hexachlorodibenzofuran | polychlorinated dibenzofuran | ||
| 2,3,4,4'5-pentachlorobiphenyl | monochlorobenzenes; pentachlorobiphenyl; tetrachlorobenzene | ||
| 3,4,5,3',4'-pentachlorobiphenyl | 3,3',4,4',5-pentachlorobiphenyl : A pentachlorobiphenyl in which the chlorines are located at the 3, 4, 5, 3', and 4' positions. | pentachlorobiphenyl; trichlorobenzene | |
| telmisartan | telmisartan : A member of the class of benzimidazoles used widely in the treatment of hypertension. Telmisartan: A biphenyl compound and benzimidazole derivative that acts as an angiotensin II type 1 receptor antagonist. It is used in the management of HYPERTENSION. | benzimidazoles; biphenyls; carboxybiphenyl | angiotensin receptor antagonist; antihypertensive agent; EC 3.4.15.1 (peptidyl-dipeptidase A) inhibitor; environmental contaminant; xenobiotic |
| tadalafil | benzodioxoles; pyrazinopyridoindole | EC 3.1.4.35 (3',5'-cyclic-GMP phosphodiesterase) inhibitor; vasodilator agent | |
| 6-methyl-1,3,8-trichlorodibenzofuran | 6-methyl-1,3,8-trichlorodibenzofuran: structure given in first source | ||
| kynurenine | L-kynurenine : A kynurenine that has L configuration. | amino acid zwitterion; kynurenine; non-proteinogenic L-alpha-amino acid | human metabolite; mouse metabolite; Saccharomyces cerevisiae metabolite |
| 7-n-butyl-6-(4'-hydroxyphenyl)-5h-pyrrolo(2,3b)pyrazine | |||
| 3-chlorodibenzofuran | 3-chlorodibenzofuran: structure given in first source | ||
| 3-((3-trifluoromethyl)phenyl)-5-((3-carboxyphenyl)methylene)-2-thioxo-4-thiazolidinone | 3-((3-trifluoromethyl)phenyl)-5-((3-carboxyphenyl)methylene)-2-thioxo-4-thiazolidinone: a cystic fibrosis transmembrane conductance regulator inhibitor; structure in first source | ||
| sch 23390 | SCH 23390 : A benzazepine that is 2,3,4,5-tetrahydro-3-benzazepine bearing a phenyl substituent at position 1, a methyl substituent at position 3, a chloro substituent at position 7 and a hydroxy substituent at position 8. SCH 23390: a selective D1-receptor antagonist | benzazepine | |
| uccf-029 | organic heterotricyclic compound; organooxygen compound | ||
| quercetin | 7-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 | |
| apigenin | Chamomile: Common name for several daisy-like plants (MATRICARIA; TRIPLEUROSPERMUM; ANTHEMIS; CHAMAEMELUM) native to Europe and Western Asia, now naturalized in the United States and Australia. | trihydroxyflavone | antineoplastic agent; metabolite |
| rutin | Hydroxyethylrutoside: Monohydroxyethyl derivative of rutin. Peripheral circulation stimulant used in treatment of venous disorders. | disaccharide derivative; quercetin O-glucoside; rutinoside; tetrahydroxyflavone | antioxidant; metabolite |
| kaempferol | 7-hydroxyflavonol; flavonols; tetrahydroxyflavone | antibacterial agent; geroprotector; human blood serum metabolite; human urinary metabolite; human xenobiotic metabolite; plant metabolite | |
| genistein | 7-hydroxyisoflavones | antineoplastic agent; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; geroprotector; human urinary metabolite; phytoestrogen; plant metabolite; tyrosine kinase inhibitor | |
| baicalein | trihydroxyflavone | angiogenesis inhibitor; anti-inflammatory agent; antibacterial agent; anticoronaviral agent; antifungal agent; antineoplastic agent; antioxidant; apoptosis inducer; EC 1.13.11.31 (arachidonate 12-lipoxygenase) inhibitor; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor; EC 4.1.1.17 (ornithine decarboxylase) inhibitor; ferroptosis inhibitor; geroprotector; hormone antagonist; plant metabolite; prostaglandin antagonist; radical scavenger | |
| 5,7-dihydroxy-6-methoxy-2-phenylchromen-4-one | 5,7-dihydroxy-6-methoxy-2-phenylchromen-4-one: isolated from the Chinese herb Scutellariae radix oroxylin A : A dihydroxy- and monomethoxy-flavone in which the hydroxy groups are positioned at C-5 and C-7 and the methoxy group is at C-6. | dihydroxyflavone; monomethoxyflavone | antineoplastic agent; EC 1.14.13.39 (nitric oxide synthase) inhibitor |
| sk&f-38393 | (R)-SKF 38393 : A 1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine-7,8-diol that is the R-enantiomer of SKF 38393. | 1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine-7,8-diol | |
| vx-770 | ivacaftor : An aromatic amide obtained by formal condensation of the carboxy group of 4-oxo-1,4-dihydroquinoline-3-carboxylic acid with the amino group of 5-amino-2,4-di-tert-butylphenol. Used for the treatment of cystic fibrosis. ivacaftor: a CFTR potentiator; structure in first source | aromatic amide; monocarboxylic acid amide; phenols; quinolone | CFTR potentiator; orphan drug |
| lumacaftor | lumacaftor : An aromatic amide obtained by formal condensation of the carboxy group of 1-(2,2-difluoro-1,3-benzodioxol-5-yl)cyclopropane-1-carboxylic acid with the aromatic amino group of 3-(6-amino-3-methylpyridin-2-yl)benzoic acid. Used for the treatment of cystic fibrosis. lumacaftor: a corrector of CF transmembrane conductance regulator (CTFR); structure in first source | aromatic amide; benzodioxoles; benzoic acids; cyclopropanes; organofluorine compound; pyridines | CFTR potentiator; orphan drug |
| 7-bromoindirubin-3'-oxime | 7-bromoindirubin-3'-oxime: has mild protein kinase inhibitory activity; induces caspase-independent cell death; structure in first source |