Target type: biologicalprocess
The process whose specific outcome is the progression of the cochlear nucleus over time, from its formation to the mature structure. [GO_REF:0000021, GOC:cls, GOC:curators, GOC:dgh, GOC:dph, GOC:jid]
The cochlear nucleus, a crucial component of the auditory pathway, undergoes a complex developmental journey characterized by intricate cellular interactions and molecular signaling events. This process begins with the differentiation of progenitor cells in the ventral hindbrain, giving rise to various neuronal subtypes with distinct morphological and functional properties. These subtypes include the spherical bushy cells, stellate cells, octopus cells, and various types of neurons that project to higher auditory centers.
The initial steps of cochlear nucleus development involve the formation of the tonotopic map, a spatial representation of sound frequency. This map is established through coordinated interactions between the cochlea and the developing cochlear nucleus. As the cochlea matures, it sends signals to the cochlear nucleus, guiding the formation of distinct tonotopic regions within this nucleus. This process is dependent on precise molecular signaling pathways, including the action of neurotrophic factors like BDNF and NT-3.
The development of the cochlear nucleus is not simply a matter of neuronal differentiation and formation of connections. It also involves the precise positioning and migration of neuronal populations. This migration is guided by a complex interplay of molecular cues, including chemoattractant and chemorepellent signals. These signals act on migrating neurons, directing their movement to appropriate locations within the developing nucleus.
During the final stages of cochlear nucleus development, neuronal circuits become refined through synaptic plasticity. This process is dependent on the activity of the cochlear neurons and is essential for the development of fine-tuned auditory processing abilities.
Throughout the developmental process, the cochlear nucleus is vulnerable to external factors, such as noise exposure and genetic mutations. These factors can disrupt normal development and lead to hearing impairments.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| Apoptosis regulator Bcl-2 | An apoptosis regulator Bcl-2 that is encoded in the genome of human. [PRO:WCB, UniProtKB:P10415] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| catechin | hydroxyflavan | ||
| chlorcyclizine | chlorcyclizine: was heading 1964-94 (Prov 1964-73); CHLOROCYCLIZINE & HISTACHLORAZINE were see CHLORCYCLIZINE 1977-94; use PIPERAZINES to search CHLORCYCLIZINE 1966-94; histamine H1-blocker used both orally and topically in allergies and also for the prevention of motion sickness | diarylmethane | |
| gossypol | Gossypol: A dimeric sesquiterpene found in cottonseed (GOSSYPIUM). The (-) isomer is active as a male contraceptive (CONTRACEPTIVE AGENTS, MALE) whereas toxic symptoms are associated with the (+) isomer. | ||
| alizarin | dihydroxyanthraquinone | chromophore; dye; plant metabolite | |
| paclitaxel | Taxus: 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 |
| 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 |
| 5,6,7,8-tetrahydro-1-naphthol | 5,6,7,8-tetrahydro-1-naphthol : 1-naphthol hydrogenated at C-5, -6, -7 and -8. | tetralins | |
| epicatechin | (-)-epicatechin : A catechin with (2R,3R)-configuration. | catechin; polyphenol | antioxidant |
| gallocatechol | (-)-epigallocatechin : A flavan-3,3',4',5,5',7-hexol having (2R,3R)-configuration. | catechin; flavan-3,3',4',5,5',7-hexol | antioxidant; food component; plant metabolite |
| chelerythrine chloride | |||
| epicatechin gallate | (-)-epicatechin-3-O-gallate : A gallate ester obtained by formal condensation of the carboxy group of gallic acid with the (3R)-hydroxy group of epicatechin. A natural product found in Parapiptadenia rigida. epicatechin gallate: a steroid 5alpha-reductase inhibitor; RN given refers to the (cis)-isomer; structure given in first source; isolated from green tea | catechin; gallate ester; polyphenol | EC 3.2.1.1 (alpha-amylase) inhibitor; EC 3.2.1.20 (alpha-glucosidase) inhibitor; metabolite |
| blastmycin | blastmycin: structure | amidobenzoic acid | |
| apogossypol | apogossypol: structure in first source | ||
| umi-77 | UMI-77: an Mcl-1 inhibitor; structure in first source | ||
| 4-(4-ethoxycarbonylanilino)-2-quinazolinecarboxylic acid ethyl ester | quinazolines | ||
| thioguanine anhydrous | Thioguanine: An antineoplastic compound which also has antimetabolite action. The drug is used in the therapy of acute leukemia. tioguanine : A 2-aminopurine that is the 6-thiono derivative of 2-amino-1,9-dihydro-6H-purine. Incorporates into DNA and inhibits synthesis. Used in the treatment of leukaemia. | 2-aminopurines | anticoronaviral agent; antimetabolite; antineoplastic agent |
| ixabepilone | 1,3-thiazoles; beta-hydroxy ketone; epoxide; lactam; macrocycle | antineoplastic agent; microtubule-destabilising agent | |
| abt-737 | aromatic amine; aryl sulfide; biphenyls; C-nitro compound; monochlorobenzenes; N-arylpiperazine; N-sulfonylcarboxamide; secondary amino compound; tertiary amino compound | anti-allergic agent; anti-inflammatory agent; antineoplastic agent; apoptosis inducer; B-cell lymphoma 2 inhibitor | |
| nutlin-3a | nutlin 3: an MDM2 antagonist; structure in first source | stilbenoid | |
| N-[4-(2-tert-butylphenyl)sulfonylphenyl]-2,3,4-trihydroxy-5-[(2-propan-2-ylphenyl)methyl]benzamide | benzamides | ||
| MI-63 | MI-63 : An azaspiro compound resulting from the formal fusion of position 3 of 6-chloro-oxindole with position 3 of (2R,3SS5S)-3-(3-chloro-2-fluorophenyl)-5-(2,2-dimethylpropyl)-N-[2-(morpholin-4-yl)ethyl]pyrrolidine-2-carboxamide. It is a potent inhibitor of the MDM2-p53 interaction. | azaspiro compound; monochlorobenzenes; monofluorobenzenes; morpholines; oxindoles; pyrrolidines; secondary carboxamide | apoptosis inducer |
| navitoclax | aryl sulfide; monochlorobenzenes; morpholines; N-sulfonylcarboxamide; organofluorine compound; piperazines; secondary amino compound; sulfone; tertiary amino compound | antineoplastic agent; apoptosis inducer; B-cell lymphoma 2 inhibitor | |
| abt-199 | venetoclax : A member of the class of pyrrolopyridines that is a potent inhibitor of the antiapoptotic protein B-cell lymphoma 2. It is used for treamtment of chronic lymphocytic leukemia with 17p deletion. venetoclax: A BCL-2 inhibitor with antineoplastic activity that is used in the treatment of CHRONIC LYMPHOCYTIC LEUKEMIA associated with chromosome 17p deletion; structure in first source. | aromatic ether; C-nitro compound; monochlorobenzenes; N-alkylpiperazine; N-arylpiperazine; N-sulfonylcarboxamide; oxanes; pyrrolopyridine | antineoplastic agent; apoptosis inducer; B-cell lymphoma 2 inhibitor |
| nvp-cgm097 | NVP-CGM097: an MDM2 and HDM2 inhibitor; structure in first source | ||
| jy-1-106 | JY-1-106: a BH3 alpha-helix mimetic that functions as a pan-Bcl-2 inhibitor; structure in first source | ||
| a-1155463 | A-1155463: a Bcl-X(L) inhibitor; structure in first source | ||
| bm-1197 | BM-1197: inhibits both Bcl-xL and Bcl-2; has antineoplastic activity | ||
| a-1331852 | A-1331852: a Bcl-X(L) inhibitor; structure in first source | ||
| BDA-366 | BDA-366 : A member of the class of anthraquinone that is 1,4-diamino-9,10-anthraquinone in which the two amino groups are carrying 3-(diethylamino)-2-hydroxypropyl and (oxiran-2-yl)methyl substituents. It exhibits anti-cancer properties. BDA-366: has antineoplastic activity; binds Bcl-2 protein; structure in first source | anthraquinone; epoxide; secondary alcohol; secondary amino compound; tertiary amino compound | antineoplastic agent; apoptosis inducer |
| apogossypolone | apogossypolone: has antineoplastic activity; structure in first source |