Diaminobenzene schiff base, a novel class of DNA minor groove binder

  • Authors:
    • Muath H. Helal
    • Zena A. Al-Mudaris
    • Mohammed H. Al-Douh
    • Hasnah Osman
    • Habibah A. Wahab
    • Belal O. AlNajjar
    • Hassan H. Abdallah
    • Amin M.S. Abdul Majid
  • View Affiliations

  • Published online on: May 18, 2012     https://doi.org/10.3892/ijo.2012.1491
  • Pages: 504-510
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Abstract

Molecules that target the deoxyribonucleic acid (DNA) minor groove are relatively sequence specific and they can be excellent carrier structures for cytotoxic chemotherapeutic compounds which can help to minimize side effects. Two novel isomeric derivatives of diaminobenzene Schiff base [N,N'-bis (2-hydroxy-3-methoxybenzylidene)-1,2-diaminobenzene (2MJ) and N,N'-bis(2-hydroxy-3-methoxybenzylidene)-1,3-diaminobenzene (2MH)] were analyzed for their DNA minor groove binding (MGB) ability using viscometry, UV and fluorescence spectroscopy, computational modeling and clonogenic assay. The result shows that 2MJ and 2MH are strong DNA MGBs with the latter being more potent. 2MH can form interstrand hydrogen bond linkages at its oxygens with N3 of adenines. Changing the 2-hydroxy-3-methoxybenzylidene binding position to the 1,3 location on the diaminobenzene structure (2MJ) completely removed any viable hydrogen bond formation with the DNA and caused significant decrease in binding strength and minor groove binding potency. Neither compound showed any significant cytotoxicity towards human breast, colon or liver cancer cell lines.
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August 2012
Volume 41 Issue 2

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Helal MH, Al-Mudaris ZA, Al-Douh MH, Osman H, Wahab HA, AlNajjar BO, Abdallah HH and Abdul Majid AM: Diaminobenzene schiff base, a novel class of DNA minor groove binder. Int J Oncol 41: 504-510, 2012
APA
Helal, M.H., Al-Mudaris, Z.A., Al-Douh, M.H., Osman, H., Wahab, H.A., AlNajjar, B.O. ... Abdul Majid, A.M. (2012). Diaminobenzene schiff base, a novel class of DNA minor groove binder. International Journal of Oncology, 41, 504-510. https://doi.org/10.3892/ijo.2012.1491
MLA
Helal, M. H., Al-Mudaris, Z. A., Al-Douh, M. H., Osman, H., Wahab, H. A., AlNajjar, B. O., Abdallah, H. H., Abdul Majid, A. M."Diaminobenzene schiff base, a novel class of DNA minor groove binder". International Journal of Oncology 41.2 (2012): 504-510.
Chicago
Helal, M. H., Al-Mudaris, Z. A., Al-Douh, M. H., Osman, H., Wahab, H. A., AlNajjar, B. O., Abdallah, H. H., Abdul Majid, A. M."Diaminobenzene schiff base, a novel class of DNA minor groove binder". International Journal of Oncology 41, no. 2 (2012): 504-510. https://doi.org/10.3892/ijo.2012.1491