Streptomycin

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Streptomycin
Streptomycin3.svg
Streptomycin-1ntb-xtal-3D-balls.png
Systematic (IUPAC) name
5-(2,4-diguanidino-
3,5,6-trihydroxy-cyclohexoxy)- 4-[4,5-dihydroxy-6-(hydroxymethyl)
-3-methylamino-tetrahydropyran-2-yl] oxy-3-hydroxy-2-methyl
-tetrahydrofuran-3-carbaldehyde
Clinical data
AHFS/Drugs.commonograph
Pregnancy cat.D (US)
Legal statusPOM (UK) -only (US)
RoutesIntramuscular, intravenous
Pharmacokinetic data
Bioavailability84% to 88% (est.)[1]
Half-life5 to 6 hours
ExcretionRenal
Identifiers
CAS number57-92-1 YesY
ATC codeA07AA04 J01GA01
PubChemCID 19649
DrugBankDB01082
ChemSpider18508 YesY
UNIIY45QSO73OB YesY
KEGGD08531 YesY
ChEBICHEBI:17076 YesY
ChEMBLCHEMBL1201194 N
NIAID ChemDB07346
Chemical data
FormulaC21H39N7O12 
Mol. mass581.574 g/mol
Physical data
Melt. point12 °C (54 °F)
 N (what is this?)  (verify)
 
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Streptomycin
Streptomycin3.svg
Streptomycin-1ntb-xtal-3D-balls.png
Systematic (IUPAC) name
5-(2,4-diguanidino-
3,5,6-trihydroxy-cyclohexoxy)- 4-[4,5-dihydroxy-6-(hydroxymethyl)
-3-methylamino-tetrahydropyran-2-yl] oxy-3-hydroxy-2-methyl
-tetrahydrofuran-3-carbaldehyde
Clinical data
AHFS/Drugs.commonograph
Pregnancy cat.D (US)
Legal statusPOM (UK) -only (US)
RoutesIntramuscular, intravenous
Pharmacokinetic data
Bioavailability84% to 88% (est.)[1]
Half-life5 to 6 hours
ExcretionRenal
Identifiers
CAS number57-92-1 YesY
ATC codeA07AA04 J01GA01
PubChemCID 19649
DrugBankDB01082
ChemSpider18508 YesY
UNIIY45QSO73OB YesY
KEGGD08531 YesY
ChEBICHEBI:17076 YesY
ChEMBLCHEMBL1201194 N
NIAID ChemDB07346
Chemical data
FormulaC21H39N7O12 
Mol. mass581.574 g/mol
Physical data
Melt. point12 °C (54 °F)
 N (what is this?)  (verify)

Streptomycin is an antibiotic (antimycobacterial) drug, the first of a class of drugs called aminoglycosides to be discovered, and it was the first cure for tuberculosis. It is derived from the actinobacterium Streptomyces griseus. Streptomycin is a bactericidal antibiotic.[2] Adverse effects of this medicine are ototoxicity, nephrotoxicity, fetal auditory toxicity, and neuromuscular paralysis.

It is on the World Health Organization's List of Essential Medicines, a list of the most important medication needed in a basic health system.[3]

Spectrum of susceptibility[edit]

Streptomycin can be used clinically to treat tuberculosis in combination with other medications and susceptible strains which cause bacterial endocarditis. The following represents MIC susceptibility for a few medically significant microorganisms.

[4][5]

Uses[edit]

Treatment of diseases[edit]

While streptomycin traditionally is given intramuscularly (indeed, in many countries it is only licensed to be used intramuscularly), the drug may also be administered intravenously.[1]

Pesticide and fungicide[edit]

Streptomycin also is used as a pesticide, to combat the growth of bacteria, fungi, and algae. Streptomycin controls bacterial and fungal diseases of certain fruit, vegetables, seed, and ornamental crops, and it controls algae in ornamental ponds and aquaria. A major use is in the control of fireblight on apple and pear trees. As in medical applications, extensive use can be associated with the development of resistant strains.

Cell culture[edit]

Streptomycin, in combination with penicillin, is used in a standard antibiotic cocktail to prevent bacterial infection in cell culture.

Protein purification[edit]

When purifying protein from a biological extract, streptomycin sulfate is sometimes added as a means of removing nucleic acids. Since it binds to ribosomes and precipitates out of solution, it serves as a method for removing rRNA, mRNA, and even DNA if the extract is from a prokaryote.

Side effects[edit]

Fever and rashes result from persistent use. The Vestibular portion of cranial nerve VIII (the vestibulococlear nerve) can be affected, resulting in tinnitus, vertigo and ataxia. It can also lead to nephrotoxicity and can potentially interfere with diagnosis of kidney malfunctioning.[6]

Mechanism of action[edit]

Streptomycin is a protein synthesis inhibitor. It binds to the small 16S rRNA of the 30S subunit of the bacterial ribosome, interfering with the binding of formyl-methionyl-tRNA to the 30S subunit.[7] This leads to codon misreading, eventual inhibition of protein synthesis and ultimately death of microbial cells through mechanisms that are still not understood. Speculation on this mechanism indicates that the binding of the molecule to the 30S subunit interferes with 50S subunit association with the mRNA strand. This results in an unstable ribosomal-mRNA complex, leading to a frameshift mutation and defective protein synthesis; leading to cell death.[8] Humans have structurally different ribosomes from bacteria, thereby allowing the selectivity of this antibiotic for bacteria. At low concentrations, however, Streptomycin only inhibits growth of the bacteria by inducing prokaryotic ribosomes to misread mRNA.[9] Streptomycin is an antibiotic that inhibits both Gram-positive and Gram-negative bacteria,[10] and is therefore a useful broad-spectrum antibiotic.

History[edit]

Streptomycin was first isolated on October 19, 1943, by Albert Schatz, a graduate student, in the laboratory of Selman Abraham Waksman at Rutgers University.[11] Dr. Waksman and his laboratory staff discovered several antibiotics, including actinomycin, clavacin, streptothricin, streptomycin, grisein, neomycin, fradicin, candicidin, and candidin. Of these, streptomycin and neomycin found extensive application in the treatment of numerous infectious diseases. Streptomycin was the first antibiotic that could be used to cure the disease tuberculosis (TB). Early production of the drug was dominated by Merck & Co. under George W. Merck.

At the end of World War II, the United States Army experimented with streptomycin to treat life-threatening infections at a military hospital in Battle Creek, Michigan. The first patient treated did not survive; the second patient survived but became blind as a side effect of the treatment. In March 1946, the third patient - Robert J. Dole, later Majority Leader of the United States Senate and Presidential nominee - experienced a rapid and robust recovery.[12]

The first randomized trial of streptomycin against pulmonary tuberculosis was carried out in 1946–1947 by the MRC Tuberculosis Research Unit under the chairmanship of Sir Geoffrey Marshall (1887–1982). The trial was both double-blind and placebo-controlled. It is widely accepted to have been the first randomised curative trial.[13]

Results showed efficacy against TB, albeit with minor toxicity and acquired bacterial resistance to the drug.[14]

See also[edit]

References[edit]

  1. ^ a b Zhu M, Burman WJ, Jaresko GS, Berning SE, Jelliffe RW, Peloquin CA. (October 2001). "Population pharmacokinetics of intravenous and intramuscular streptomycin in patients with tuberculosis". Pharmacotherapy 21 (9): 1037–1045. doi:10.1592/phco.21.13.1037.34625. PMID 11560193. Retrieved 2010-05-25. 
  2. ^ Singh B, Mitchison DA (16 January 1954). "Bactericidal Activity of Streptomycin and Isoniazid Against Tubercle Bacilli". British Medical Journal 1 (4854): 130–132. doi:10.1136/bmj.1.4854.130. PMC 2084433. PMID 13106497. 
  3. ^ "WHO Model List of EssentialMedicines". World Health Organization. October 2013. Retrieved 22 April 2014. 
  4. ^ http://antibiotics.toku-e.com/antimicrobial_1099_1.html
  5. ^ http://www.toku-e.com/Assets/MIC/Streptomycin%20sulfate.pdf
  6. ^ Syal K, Srinivasan A & Banerjee D Streptomycin interference in Jaffe reaction — Possible false positive creatinine estimation in excessive dose exposure. Clinical Biochemistry 46, 177-179, 2013
  7. ^ Sharma D, Cukras AR, Rogers EJ, Southworth DR, Green R (7 December 2007). "Mutational analysis of S12 protein and implications for the accuracy of decoding by the ribosome". Journal of Molecular Biology 374 (4): 1065–76. doi:10.1016/j.jmb.2007.10.003. PMC 2200631. PMID 17967466. 
  8. ^ Raymon, Lionel P. (2011). COMLEX Level 1 Pharmacology Lecture Notes. Miami, FL: Kaplan, Inc. p. 181. CM4024K. 
  9. ^ Voet, Donald & Voet, Judith G. (2004). Biochemistry (3rd ed.). John Wiley & Sons. p. 1341. ISBN 0-471-19350-X. 
  10. ^ Jan-Thorsten Schantz; Kee-Woei Ng (2004). A manual for primary human cell culture. World Scientific. p. 89. 
  11. ^ Comroe JH Jr (1978). "Pay dirt: the story of streptomycin. Part I: from Waksman to Waksman". American Review of Respiratory Disease 117 (4): 773–781. PMID 417651. 
  12. ^ Cramer, Richard Ben, What It Takes (New York, 1992), pp. 110-11.
  13. ^ Metcalfe NH (February 2011). "Sir Geoffrey Marshall (1887-1982): respiratory physician, catalyst for anaesthesia development, doctor to both Prime Minster and King, and World War I Barge Commander". J Med Biogr 19 (1): 10–4. doi:10.1258/jmb.2010.010019. PMID 21350072. 
  14. ^ D'Arcy Hart P (August 1999). "A change in scientific approach: from alternation to randomised allocation in clinical trials in the 1940s". British Medical Journal 319 (7209): 572–3. doi:10.1136/bmj.319.7209.572. PMC 1116443. PMID 10463905. 

Further reading[edit]