National Cancer Institute Thesaurus

Last uploaded: February 21, 2019
Preferred Name

Thioacetazone

ID

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C85523

CAS_Registry

104-06-3

code

C85523

DEFINITION

A thiosemicarbazone prodrug with antitubercular activity. Although the exact mechanism by which thioacetazone exerts its effect has yet to be fully elucidated, this agent, upon activation by bacterial monooxygenase EtaA, appears to target and inhibit cyclopropane mycolic acid synthases (CMASs), a family of S-adenosyl-methionine-dependent methyl transferases responsible for cyclopropanation of mycolic acid. By inhibiting mycolic acid synthesis, the bacterial cell wall becomes more permeable and less resistant to injury which eventually leads to cell lysis. Mycolic acids, long-chain fatty acids, are essential mycobacterial cell wall components and play a key role in resistance to cell injury and mycobacterial virulence.

FULL_SYN

N-(4-(ethanethioamidoimino)methylphenyl)acetamide

Thiacetazone

label

Thioacetazone

Preferred_Name

Thioacetazone

prefixIRI

C85523

prefLabel

Thioacetazone

Semantic_Type

Pharmacologic Substance

UMLS_CUI

C0039834

subClassOf

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C280

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http://purl.obolibrary.org/obo/CHEBI_134958 Chemical Entities of Biological Interest Ontology LOOM
http://purl.obolibrary.org/obo/CHEBI_134958 GenEpiO LOOM
http://purl.bioontology.org/ontology/MESH/D013828 Medical Subject Headings LOOM
http://purl.bmicc.cn/ontology/ICD11CN/XM0AR8 International Classification of Diseases, 11th Edition, China LOOM