Page last updated: 2024-10-24

hyaluronan catabolic process

Definition

Target type: biologicalprocess

The chemical reactions and pathways resulting in the breakdown of hyaluronan, the naturally occurring anionic form of hyaluronic acid, any member of a group of glycosaminoglycans, the repeat units of which consist of beta-1,4 linked D-glucuronyl-beta-(1,3)-N-acetyl-D-glucosamine. [GOC:mah, ISBN:0198506732]

Hyaluronan catabolic process is the breakdown of hyaluronan, a large, linear polysaccharide that is a major component of the extracellular matrix. This process is essential for tissue remodeling, wound healing, and inflammation. Hyaluronan is synthesized by hyaluronan synthases and degraded by hyaluronidases. Hyaluronidases are a family of enzymes that specifically cleave the glycosidic bonds within hyaluronan. There are several different types of hyaluronidases, each with a different substrate specificity and cellular localization. For example, hyaluronidase 1 (HYAL1) is a lysosomal enzyme that degrades hyaluronan to tetrasaccharides and disaccharides, while hyaluronidase 2 (HYAL2) is a membrane-bound enzyme that degrades hyaluronan to oligosaccharides. The breakdown of hyaluronan can be regulated by various factors, including growth factors, cytokines, and hormones. The products of hyaluronan catabolism, such as hyaluronan fragments, can have diverse biological activities, including modulating cell signaling, inflammation, and angiogenesis. These fragments can also be recognized by specific receptors on the cell surface, leading to the activation of downstream signaling pathways. Hyaluronan catabolic process is tightly regulated and plays a crucial role in maintaining tissue homeostasis and responding to various physiological and pathological conditions.'
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Proteins (7)

ProteinDefinitionTaxonomy
Hyaluronidase-1A hyaluronidase-1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q12794]Homo sapiens (human)
Hyaluronidase-1A hyaluronidase-1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q12794]Homo sapiens (human)
CD44 antigenA CD44 molecule that is encoded in the genome of human. [PRO:WCB, UniProtKB:P16070]Homo sapiens (human)
Fibroblast growth factor 2A fibroblast growth factor 2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P09038]Homo sapiens (human)
Beta-glucuronidaseA beta-glucuronidase that is encoded in the genome of human. [PRO:DNx, UniProtKB:P08236]Homo sapiens (human)
Beta-hexosaminidase subunit betaA beta-hexosaminidase subunit beta that is encoded in the genome of human. [PRO:DNx, UniProtKB:P07686]Homo sapiens (human)
Beta-hexosaminidase subunit alphaA beta-hexosaminidase subunit alpha that is encoded in the genome of human. [PRO:DNx, UniProtKB:P06865]Homo sapiens (human)

Compounds (26)

CompoundDefinitionClassesRoles
pyrimethamineMaloprim: contains above 2 cpdsaminopyrimidine;
monochlorobenzenes
antimalarial;
antiprotozoal drug;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor
dehydroepiandrosteronedehydroepiandrosterone : An androstanoid that is androst-5-ene substituted by a beta-hydroxy group at position 3 and an oxo group at position 17. It is a naturally occurring steroid hormone produced by the adrenal glands.

Dehydroepiandrosterone: A major C19 steroid produced by the ADRENAL CORTEX. It is also produced in small quantities in the TESTIS and the OVARY. Dehydroepiandrosterone (DHEA) can be converted to TESTOSTERONE; ANDROSTENEDIONE; ESTRADIOL; and ESTRONE. Most of DHEA is sulfated (DEHYDROEPIANDROSTERONE SULFATE) before secretion.
17-oxo steroid;
3beta-hydroxy-Delta(5)-steroid;
androstanoid
androgen;
human metabolite;
mouse metabolite
1,2,3,4-tetrahydroisoquinoline1,2,3,4-tetrahydroisoquinoline: RN given refers to cpd with locants as specifiedisoquinolines
naphthalimidesNaphthalimides: Compounds with three fused rings that appear like a naphthalene fused to piperidone or like a benz(de)isoquinoline-1,3-dione (not to be confused with BENZYLISOQUINOLINES which have a methyl separating the naphthyl from the benzyl rings). Members are CYTOTOXINS.
methyl methanethiosulfinatemethyl methanethiosulfinate: structure in first source; a metabolite of S-methyl cysteine sulfoxidesulfur oxoacid derivative
saccharolactoneD-glucaro-1,4-lactone : A delta-lactone that is D-glucono-1,4-lactone in which the hydroxy group at position 6 has been oxidised to the corresponding carboxylic acid.

saccharolactone: used as index for assessing induction of hepatic enzymes by anticonvulsants; RN given refers to cpd without isomeric designation
aldarolactone;
delta-lactone
2-acetamido-1,5-imino-1,2,5-trideoxy-d-glucitol2-acetamido-1,5-imino-1,2,5-trideoxy-D-glucitol: structure given in first source
2-(2-oxolanylmethyl)benzo[de]isoquinoline-1,3-dioneisoquinolines
ferulic acidferulate : A monocarboxylic acid anion obtained by the deprotonation of the carboxy group of ferulic acid.ferulic acidsanti-inflammatory agent;
antioxidant;
apoptosis inhibitor;
cardioprotective agent;
MALDI matrix material;
plant metabolite
2,2'-dihydroxychalcone2,2'-dihydroxychalcone: an antineoplastic agent; structure in first source
caffeic acidtrans-caffeic acid : The trans-isomer of caffeic acid.caffeic acidgeroprotector;
mouse metabolite
1-[4-[(2-methyl-4-quinolinyl)amino]phenyl]ethanonearomatic ketone
isoferulic acidisoferulic acid : A ferulic acid consisting of trans-cinnamic acid bearing methoxy and hydroxy substituents at positions 4 and 3 respectively on the phenyl ring.

isoferulic acid: isomer of ferulic acid; structure
ferulic acidsantioxidant;
biomarker;
metabolite
kaempferol7-hydroxyflavonol;
flavonols;
tetrahydroxyflavone
antibacterial agent;
geroprotector;
human blood serum metabolite;
human urinary metabolite;
human xenobiotic metabolite;
plant metabolite
mangiferinshamimin: isolated from the leaves of Bombax ceiba; structure in first sourceC-glycosyl compound;
xanthones
anti-inflammatory agent;
antioxidant;
hypoglycemic agent;
plant metabolite
kuwanon gkuwanon G: a non-peptide bombesin receptor antagonist; RN refers to (1S-(1alpha,5alpha,6beta))-isomer; structure given in first source

kuwanone G : A tetrahydroxyflavone isolated from the root barks of Morus alba and has been shown to exhibit anti-inflammatory activity.
resorcinols;
tetrahydroxyflavone
anti-inflammatory agent;
plant metabolite
rosmarinic acid(R)-rosmarinic acid : A stereoisomer of rosmarinic acid having (R)-configuration.

rosmarinic acid : The 1-carboxy-2-(2,4-dihydroxyphenyl)ethyl ester of trans-caffeic acid.

rosmarinic acid: RN given refers to parent cpd; promote OT project
rosmarinic acidgeroprotector;
plant metabolite
n-acetylglucosamine thiazolineN-acetylglucosamine thiazoline: an analog of the oxazolinium bicyclic intermediate leading from N-acetylglucosamine to 1,6-anhydro-N-acetylmuramic acid
2',5'-dihydroxychalcone2',5'-dihydroxychalcone: structure given in first sourcechalcones
ginkgolide b
tivozanibN-(2-chloro-4-((6,7-dimethoxy-4-quinolyl)oxy)phenyl)-N'-(5-methyl-3-isoxazolyl)urea: KNR-951 is the HCl, monohydrate salt; an antineoplastic agent; structure in first sourcearomatic ether
b355252
phosphomannopentaose sulfatephosphomannopentaose sulfate: structure in first source
pg 545PG 545: an anti-angiogenesis agent with heparanase inhibitory activity; structure in first source
2-(4-methoxyphenyl)-1H-quinazolin-4-onequinazolines
thiamet g