National Cancer Institute Thesaurus

Last uploaded: February 23, 2024
Preferred Name

Acetylcysteine

Synonyms

Acetylcysteine

L-Alpha-acetamido-beta-mercaptopropionic Acid

N-Acetylcysteine

Neo-Fluimucil

Muco Sanigen

ACETYLCYSTEINE

acetylcysteine

Broncholysin

N-Acetyl-L-cysteine

N-Acetyl Cysteine

Mucolyticum

N-acetyl-L-cysteine

N-acetyl-3-mercaptoalanine

Fluimucetin

N-acetylcysteine

Acetadote

Airbron

Brunac

Fabrol

Fluatox

Fluimucil

Fluprowit

Mucocedyl

Mucolator

Mucomyst

Mucosolvin

Mucret

NAC

Parvolex

Respaire

Tixair

Definitions

A synthetic N-acetyl derivative and prodrug of the endogenous amino acid L-cysteine, a precursor of the antioxidant glutathione (GSH), with mucolytic, antioxidant, and potential cytoprotective, cancer-preventive, and anti-inflammatory activities. Upon administration, acetylcysteine exerts its mucolytic activity by reducing disulfide bonds in mucoproteins, resulting in liquification of mucus and reducing its viscosity. It is also used for the treatment of acetaminophen overdose as it can restore the depleted GSH reserves in the hepatocytes during the process of detoxification. The antioxidant activity is attributed to the ability of GSH to scavenge reactive oxygen species (ROS), thereby preventing ROS-mediated cell damage, decreasing oxidative stress, protecting cells against the damaging effects of free radicals and preventing apoptosis in these cells. In addition, this may inhibit tumor cell proliferation, progression and survival, in susceptible tumor cells that rely on ROS-mediated signaling for their proliferation and malignant behavior. Under certain circumstances, acetylcysteine is able to induce apoptosis in susceptible cells, including certain tumor cells, via the intrinsic mitochondria-dependent pathway but not involving endoplasmic reticulum stress. Also, acetylcysteine may also be able to degrade Notch2, thereby preventing proliferation, migration, and invasion in Notch2-overexpressing glioblastoma cells. In addition, acetylcysteine may inhibit viral stimulation by reactive oxygen intermediates, thereby producing antiviral activity in HIV patients. Acetylcysteine also possesses anti-inflammatory activity through modulation of the nuclear factor-kappa B (NF-kB) pathway and the modulation of cytokine synthesis.

ID

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C200

Accepted_Therapeutic_Use_For

Acetaminophen Overdose

ALT_DEFINITION

A drug usually used to reduce the thickness of mucus and ease its removal. It is also used to reverse the toxicity of high doses of acetaminophen.

CAS_Registry

616-91-1

CHEBI_ID

CHEBI:28939

Chemical_Formula

C5H9NO3S

code

C200

Concept_In_Subset

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C176424

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C157711

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C173381

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C157712

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C173383

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C116978

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C116977

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C128784

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C63923

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C177537

Contributing_Source

CTRP

FDA

GDC

DEFINITION

A synthetic N-acetyl derivative and prodrug of the endogenous amino acid L-cysteine, a precursor of the antioxidant glutathione (GSH), with mucolytic, antioxidant, and potential cytoprotective, cancer-preventive, and anti-inflammatory activities. Upon administration, acetylcysteine exerts its mucolytic activity by reducing disulfide bonds in mucoproteins, resulting in liquification of mucus and reducing its viscosity. It is also used for the treatment of acetaminophen overdose as it can restore the depleted GSH reserves in the hepatocytes during the process of detoxification. The antioxidant activity is attributed to the ability of GSH to scavenge reactive oxygen species (ROS), thereby preventing ROS-mediated cell damage, decreasing oxidative stress, protecting cells against the damaging effects of free radicals and preventing apoptosis in these cells. In addition, this may inhibit tumor cell proliferation, progression and survival, in susceptible tumor cells that rely on ROS-mediated signaling for their proliferation and malignant behavior. Under certain circumstances, acetylcysteine is able to induce apoptosis in susceptible cells, including certain tumor cells, via the intrinsic mitochondria-dependent pathway but not involving endoplasmic reticulum stress. Also, acetylcysteine may also be able to degrade Notch2, thereby preventing proliferation, migration, and invasion in Notch2-overexpressing glioblastoma cells. In addition, acetylcysteine may inhibit viral stimulation by reactive oxygen intermediates, thereby producing antiviral activity in HIV patients. Acetylcysteine also possesses anti-inflammatory activity through modulation of the nuclear factor-kappa B (NF-kB) pathway and the modulation of cytokine synthesis.

Display_Name

Acetylcysteine

FDA_UNII_Code

WYQ7N0BPYC

FULL_SYN

Acetylcysteine

L-Alpha-acetamido-beta-mercaptopropionic Acid

N-Acetylcysteine

Neo-Fluimucil

Muco Sanigen

ACETYLCYSTEINE

acetylcysteine

Broncholysin

N-Acetyl-L-cysteine

N-Acetyl Cysteine

Mucolyticum

N-acetyl-L-cysteine

N-acetyl-3-mercaptoalanine

Fluimucetin

N-acetylcysteine

Acetadote

Airbron

Brunac

Fabrol

Fluatox

Fluimucil

Fluprowit

Mucocedyl

Mucolator

Mucomyst

Mucosolvin

Mucret

NAC

Parvolex

Respaire

Tixair

Is_Value_For_GDC_Property

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C1909

label

Acetylcysteine

Legacy Concept Name

Acetylcysteine

Maps_To

Acetylcysteine

NCI_Drug_Dictionary_ID

39130

NSC Number

111180

PDQ_Closed_Trial_Search_ID

39130

PDQ_Open_Trial_Search_ID

39130

Preferred_Name

Acetylcysteine

prefixIRI

Thesaurus:C200

Semantic_Type

Amino Acid, Peptide, or Protein

Pharmacologic Substance

UMLS_CUI

C0001047

subClassOf

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C74536

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C275

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Delete Mapping To Ontology Source
http://purl.obolibrary.org/obo/CHEBI_22198 GO-PLUS LOOM
http://purl.obolibrary.org/obo/CHEBI_22198 CHEBI LOOM
http://purl.bioontology.org/ontology/VANDF/4018810 VANDF LOOM
http://purl.bioontology.org/ontology/PDQ/CDR0000039130 PDQ LOOM
http://purl.jp/bio/4/id/200906085802238209 IOBC LOOM
http://purl.obolibrary.org/obo/OMIT_0001553 OMIT LOOM
https://go.drugbank.com/drugs/DB06151 MDM LOOM
http://purl.obolibrary.org/obo/MESH_D000111 BERO LOOM
http://purl.bioontology.org/ontology/ATC/R05CB01 ATC LOOM
http://purl.bioontology.org/ontology/SNOMEDCT/387440002 SNOMEDCT LOOM
http://purl.bioontology.org/ontology/ATC/S01XA08 ATC LOOM
http://purl.obolibrary.org/obo/NCIT_C200 BERO LOOM
http://purl.bioontology.org/ontology/CSP/2842-6744 CRISP LOOM
http://phenomebrowser.net/ontologies/mesh/mesh.owl#D12.125.166.230.259 RH-MESH LOOM
http://purl.bioontology.org/ontology/NDDF/000720 NDDF LOOM
http://purl.bioontology.org/ontology/SNMI/C-88610 SNMI LOOM
http://purl.obolibrary.org/obo/CHEBI_22198 PDRO LOOM
http://purl.obolibrary.org/obo/CHEBI_22198 COVID-19 LOOM
http://purl.obolibrary.org/obo/CHEBI_22198 BERO LOOM
http://purl.obolibrary.org/obo/CHEBI_22198 BIOMODELS LOOM
http://purl.obolibrary.org/obo/CHEBI_22198 DRON LOOM
http://purl.obolibrary.org/obo/CHEBI_22198 MAXO LOOM
http://sbmi.uth.tmc.edu/ontology/ochv#618 OCHV LOOM
http://purl.bioontology.org/ontology/LNC/LP419901-6 LOINC LOOM
http://purl.bioontology.org/ontology/NDFRT/N0000147113 NDFRT LOOM
http://www.semanticweb.org/admin/ontologies/2022/7/MIO:01113 MIO LOOM
http://purl.bioontology.org/ontology/NDDF/003524 NDDF LOOM
http://purl.bioontology.org/ontology/ATC/V03AB23 ATC LOOM
http://sbmi.uth.tmc.edu/ontology/ochv#C0001047 OCHV LOOM
http://www.phoc.org.cn/pmo/class/PMO_00017368 PMAPP-PMO LOOM
http://purl.bioontology.org/ontology/MESH/D000111 MESH LOOM
http://phenomebrowser.net/ontologies/mesh/mesh.owl#D02.886.030.230.259 RH-MESH LOOM
http://purl.bioontology.org/ontology/RCD/x02LK RCD LOOM
http://www.co-ode.org/ontologies/galen#Acetylcysteine GALEN LOOM
http://phenomebrowser.net/ontologies/mesh/mesh.owl#D000111 RH-MESH LOOM
http://purl.bioontology.org/ontology/RXNORM/197 RXNORM LOOM