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Product Details:

  • Product Name: Bleomycin
  • CAS #: 11056-06-07
  • Mode of Action:

    Although the exact mechanism of action of bleomycin is unknown, available evidence would seem to indicate that the main mode of action is the inhibition of DNA synthesis with some evidence of lesser inhibition of RNA and protein synthesis. DNA cleavage by bleomycin depends on oxygen and metal ions, at least in vitro. It is believed that bleomycin chelates metal ions (primarily iron) producing a pseudoenzyme that reacts with oxygen to produce superoxide and hydroxide free radicals that cleave DNA.

  • Pharmacodynamics:

    Bleomycin is an antibiotic which has been shown to have antitumor activity. Bleomycin selectively inhibits the synthesis of deoxyribonucleic acid (DNA). The guanine and cytosine content correlates with the degree of mitomycin-induced cross-linking. At high concentrations of the drug, cellular RNA and protein synthesis are also suppressed. Bleomycin has been shown in vitro to inhibit B cell, T cell, and macrophage proliferation and impair antigen presentation, as well as the secretion of interferon gamma, TNFa, and IL-2. The antibiotic antitumor drugs are cell cycle-nonspecific except for Bleomycin (which has major effects in G2 and M phases).

  • Metabolism:

    Hepatic

  • Toxicity:

    Excessive exposure may cause fever, chills, nausea, vomiting, mental, confusion, and wheezing. Bleomycin may cause irritation to eyes, skin and respiratory tract. It may also cause a darkening or thickening of the skin. It may cause an allergic reaction.

  • ATC: L01DC01
  • PubChem: 456190
  • DrugBank: DB00290 (APRD00453, EXPT00718)
  • Formula: C27H40O3
  • Molecular Mass: 1415.552
  • Synonyms: Bleocin Bleomicin Bleomicina [INN-Spanish] Bleomycin A2 Bleomycin sulfate Bleomycine [INN-French] Bleomycinum [INN-Latin] BLM
  • SMILES: C[C@@H](O)[C@H](NC(=O)[C@@H](C)[C@H](O)[C@@H](C)NC(=O)[C@@H](NC(=O)C1=C(C)C(N)=NC(=N1)[C@H](CC(N)=O)NC[C@H](N)C(N)=O)[C@@H](OC1OC(CO)C(O)C(O)C1OC1OC(CO)C(O)C(OC(N)=O)C1O)C1=CN=CN1)C(=O)NCCC1=NC(=CS1)C1=NC(=CS1)C(=O)NCCC[S+](C)C
  • AHFS Code: 10:00.0
  • InChl: OYVAGSVQBOHSSS-WXFSZRTFSA-O
  • General Reference:

    1. Claussen CA, Long EC: Nucleic Acid recognition by metal complexes of bleomycin. Chem Rev. 1999 Sep 8;99(9):2797-816. Pubmed

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