D-Cycloserine Selection Antibiotics for Transfected Cell inhibitor

Cat.No.S1998

D-cycloserine (RO-1-9213) is an analog of the amino acid D-alanine, used as an antibiotic in the treatment of tuberculosis.
D-Cycloserine Selection Antibiotics for Transfected Cell inhibitor Chemical Structure

Chemical Structure

Molecular Weight: 102.09

Quality Control

Chemical Information, Storage & Stability

Molecular Weight 102.09 Formula

C3H6N2O2

Storage (From the date of receipt)
CAS No. 68-41-7 Download SDF Storage of Stock Solutions

Synonyms RO-1-9213 Smiles C1C(C(=O)NO1)N

Solubility

In vitro
Batch:

Water : 20 mg/mL

DMSO : Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : Insoluble

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Mass Concentration Volume Molecular Weight

In vivo
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Mechanism of Action

In vivo
D-cycloserine (DCS) facilitates extinction of conditioned freezing to the light CS when no drug pre-exposure has occurred, but pre-exposure to DCS just prior to conditioning disrupted the facilitation of extinction effect in mice. [1] D-cycloserine (DCS) which has a high affinity for the glycine modulatory site in the NMDA receptor complex modulated memory processing in a dose-dependent manner. DCS also facilitates retention in 'senescence-accelerated mice' in which impairment of learning andmemory increases with age. [2] D-cycloserine (DCS) exhibits facilitated extinction of fear but are able to reacquire fear of that conditioned stimulus (CS) in a similar manner as saline-treated control rats. DCS-treated rats exhibits generalized extinction (i.e., they are less fearful of a non-extinguished CS) in comparison to controls. [3] D-cycloserine (DCS), an antimycobacterial agent known to cross the blood-brain barrier, binds with high affinity to this glycine modulatory site, functions as a positive modulator, and facilitates performance of learningtasks in rats. DCS appears to be a potent cognitive enhancer at doses lower than those required for antibacterial activity. [4] D-cycloserine injections (3.25, 15, or 30 mg/kg) before 30 non-reinforced light exposures dose-dependently enhances extinction but does not influence fear-potentiated startle in rats that does not receive extinction training. [5]
References
  • [4] https://pubmed.ncbi.nlm.nih.gov/2560209/
  • [5] https://pubmed.ncbi.nlm.nih.gov/11896173/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT05731323 Completed
Major Depressive Disorder
University of Calgary
October 12 2022 Phase 1
NCT01399866 Completed
Smoking Cessation
Massachusetts General Hospital
May 2011 Phase 3
NCT00964041 Withdrawn
Schizophrenia
Massachusetts General Hospital|National Institute of Mental Health (NIMH)
July 2009 Phase 4
NCT01062932 Completed
Nicotine Addiction
Baylor College of Medicine|National Institute on Drug Abuse (NIDA)
May 2009 Phase 1

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