response to nickel cation
Definition
Target type: biologicalprocess
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nickel cation stimulus. [GOC:sm]
Nickel cation response is a complex biological process that involves multiple cellular pathways. Nickel is a heavy metal that can be toxic to cells, but it also plays a role in some biological processes. When nickel ions enter the cell, they can bind to various proteins and enzymes, potentially disrupting their function. This can lead to a variety of cellular responses, including oxidative stress, DNA damage, and apoptosis.
The cellular response to nickel cations begins with the uptake of nickel ions into the cell. Nickel can enter cells through various mechanisms, including passive diffusion, active transport, and endocytosis. Once inside the cell, nickel ions can bind to various proteins, including metallothioneins, which are small proteins that bind heavy metals. Metallothioneins play a role in detoxifying nickel and other heavy metals by sequestering them in the cytoplasm.
Nickel can also disrupt cellular processes by generating reactive oxygen species (ROS). ROS are highly reactive molecules that can damage cellular components, including DNA, proteins, and lipids. This oxidative stress can contribute to the toxicity of nickel.
Another important aspect of the response to nickel cations is DNA damage. Nickel can bind to DNA and cause strand breaks and other lesions. These DNA lesions can activate DNA repair pathways, but if these pathways are overwhelmed, they can lead to mutations and cancer.
Finally, nickel can induce apoptosis, or programmed cell death. Apoptosis is a normal process that eliminates damaged or unwanted cells. However, excessive apoptosis can be harmful to the organism. Nickel can induce apoptosis through a variety of mechanisms, including activation of caspase enzymes and disruption of the mitochondrial membrane.
In summary, the response to nickel cations is a multifaceted process that involves multiple cellular pathways. The cellular response to nickel cations is important for maintaining cellular homeostasis and protecting against the toxic effects of this metal. The specific response will depend on the concentration of nickel, the cell type, and other factors.'
"
Proteins (2)
| Protein | Definition | Taxonomy |
|---|---|---|
| Heat shock cognate 71 kDa protein | A heat shock cognate 71 kDa protein that is encoded in the genome of human. [PRO:DAN] | Homo sapiens (human) |
| Voltage-dependent T-type calcium channel subunit alpha-1G | A voltage-dependent T-type calcium channel subunit alpha-1G that is encoded in the genome of human. [PRO:WCB, UniProtKB:O43497] | Homo sapiens (human) |
Compounds (21)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| tacrine | tacrine : A member of the class of acridines that is 1,2,3,4-tetrahydroacridine substituted by an amino group at position 9. It is used in the treatment of Alzheimer's disease. Tacrine: A cholinesterase inhibitor that crosses the blood-brain barrier. Tacrine has been used to counter the effects of muscle relaxants, as a respiratory stimulant, and in the treatment of Alzheimer's disease and other central nervous system disorders. | acridines; aromatic amine | EC 3.1.1.7 (acetylcholinesterase) inhibitor |
| nimodipine | nimodipine : A dihydropyridine that is 1,4-dihydropyridine which is substituted by methyl groups at positions 2 and 6, a (2-methoxyethoxy)carbonyl group at position 3, a m-nitrophenyl group at position 4, and an isopropoxycarbonyl group at position 5. An L-type calcium channel blocker, it acts particularly on cerebral circulation, and is used both orally and intravenously for the prevention and treatment of subarachnoid hemorrhage from ruptured intracranial aneurysm. Nimodipine: A calcium channel blockader with preferential cerebrovascular activity. It has marked cerebrovascular dilating effects and lowers blood pressure. | 2-methoxyethyl ester; C-nitro compound; dicarboxylic acids and O-substituted derivatives; diester; dihydropyridine; isopropyl ester | antihypertensive agent; calcium channel blocker; cardiovascular drug; vasodilator agent |
| adenosine diphosphate | Adenosine Diphosphate: Adenosine 5'-(trihydrogen diphosphate). An adenine nucleotide containing two phosphate groups esterified to the sugar moiety at the 5'-position. | adenosine 5'-phosphate; purine ribonucleoside 5'-diphosphate | fundamental metabolite; human metabolite |
| tubercidin | tubercidin : An N-glycosylpyrrolopyrimidine that is adenosine in which the in the 5-membered ring that is not attached to the ribose moiety is replaced by a carbon. Tubercidin is produced in the culture broth of Streptomyces tubericidus. Tubercidin: An antibiotic purine ribonucleoside that readily substitutes for adenosine in the biological system, but its incorporation into DNA and RNA has an inhibitory effect on the metabolism of these nucleic acids. | antibiotic antifungal agent; N-glycosylpyrrolopyrimidine; ribonucleoside | antimetabolite; antineoplastic agent; bacterial metabolite |
| toyocamycin | toyocamycin : An N-glycosylpyrrolopyrimidine that is tubercidin in which the hydrogen at position 5 of the pyrrolopyrimidine moiety has been replaced by a cyano group. Toyocamycin: 4-Amino-5-cyano-7-(D-ribofuranosyl)-7H- pyrrolo(2,3-d)pyrimidine. Antibiotic antimetabolite isolated from Streptomyces toyocaensis cultures. It is an analog of adenosine, blocks RNA synthesis and ribosome function, and is used mainly as a tool in biochemistry. | antibiotic antifungal agent; N-glycosylpyrrolopyrimidine; nitrile; ribonucleoside | antimetabolite; antineoplastic agent; apoptosis inducer; bacterial metabolite |
| nsc 65346 | sangivamycin : A nucleoside analogue that is adenosine in which the nitrogen at position 7 is replaced by a carbamoyl-substituted carbon. It is a potent inhibitor of protein kinase C. sangivamycin: RN given refers to parent cpd | nucleoside analogue | protein kinase inhibitor |
| pimozide | pimozide : A member of the class of benzimidazoles that is 1,3-dihydro-2H-benzimidazol-2-one in which one of the nitrogens is substituted by a piperidin-4-yl group, which in turn is substituted on the nitrogen by a 4,4-bis(p-fluorophenyl)butyl group. Pimozide: A diphenylbutylpiperidine that is effective as an antipsychotic agent and as an alternative to HALOPERIDOL for the suppression of vocal and motor tics in patients with Tourette syndrome. Although the precise mechanism of action is unknown, blockade of postsynaptic dopamine receptors has been postulated. (From AMA Drug Evaluations Annual, 1994, p403) | benzimidazoles; heteroarylpiperidine; organofluorine compound | antidyskinesia agent; dopaminergic antagonist; first generation antipsychotic; H1-receptor antagonist; serotonergic antagonist |
| mibefradil | Mibefradil: A benzimidazoyl-substituted tetraline that selectively binds and inhibits CALCIUM CHANNELS, T-TYPE. | tetralins | T-type calcium channel blocker |
| adenosine | quinquefolan B: isolated from roots of Panax quinquefolium L.; RN not in Chemline 10/87; RN from Toxlit | adenosines; purines D-ribonucleoside | analgesic; anti-arrhythmia drug; fundamental metabolite; human metabolite; vasodilator agent |
| vexibinol | sophoraflavanone G : A tetrahydroxyflavanone having a structure of naringenin bearing an additional hydroxyl substituent at position 2' as well as a (2R)-5-methyl-2-(prop-1-en-2-yl)hex-4-en-1-yl (lavandulyl) substituent at position 8'. vexibinol: flavanol from Sophora; structure in first source; RN given refers to (S-(R*,S*))-isomer | (2S)-flavan-4-one; 4'-hydroxyflavanones; tetrahydroxyflavanone | antimalarial; antimicrobial agent; antioxidant; plant metabolite |
| 8-aminoadenosine | |||
| 5'-deoxyadenosine | 5'-deoxyadenosine : A 5'-deoxyribonucleoside compound having adenosine as the nucleobase. 5'-deoxyadenosine: main heading DEOXYADENOSINE refers to the 3' cpd | 5'-deoxyribonucleoside; adenosines | Escherichia coli metabolite; human metabolite; mouse metabolite |
| 8-prenylnaringenin | 8-prenylnaringenin: a phytogenic antineoplastic agent; structure in first source sophoraflavanone B : A trihydroxyflavanone that is (S)-naringenin having a prenyl group at position 8. | (2S)-flavan-4-one; 4'-hydroxyflavanones; trihydroxyflavanone | plant metabolite; platelet aggregation inhibitor |
| flunarizine | Flunarizine: Flunarizine is a selective calcium entry blocker with calmodulin binding properties and histamine H1 blocking activity. It is effective in the prophylaxis of migraine, occlusive peripheral vascular disease, vertigo of central and peripheral origin, and as an adjuvant in the therapy of epilepsy. | diarylmethane | |
| 2-phenoxy-N-[5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl]acetamide | tetralins | ||
| (S)-4',5,7-Trihydroxy-6-prenylflavanone | flavanones | ||
| ith 4012 | |||
| kys 05090 | |||
| ver 155008 | VER 155008: structure in first source | purine nucleoside | |
| ulixacaltamide | Z944: a T-type calcium channel antagonist | benzamides; monochlorobenzenes; monofluorobenzenes; piperidines; secondary carboxamide | non-narcotic analgesic; T-type calcium channel blocker |
| nms-e973 | NMS-E973: structure in first source |