Open Access

Sialic acid-binding lectin (leczyme) induces caspase-dependent apoptosis-mediated mitochondrial perturbation in Jurkat cells

  • Authors:
    • Takeo Tatsuta
    • Masahiro Hosono
    • Shigeki Sugawara
    • Yukiko Kariya
    • Yukiko Ogawa
    • Senitiroh Hakomori
    • Kazuo Nitta
  • View Affiliations

  • Published online on: September 5, 2013     https://doi.org/10.3892/ijo.2013.2092
  • Pages: 1402-1412
  • Copyright: © Tatsuta et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

Sialic acid binding lectin (SBL) isolated from Rana catesbeiana oocytes is a multifunctional protein which has lectin activity, ribonuclease activity and antitumor activity. However, the mechanism of antitumor effects of SBL is unclear to date and the validity for human leukemia cells has not been fully studied. We report here that SBL shows cytotoxicity for some human leukemia cell lines including multidrug-resistant (MDR) cells. The precise mechanisms of SBL-induced apoptotic signals were analyzed by combinational usage of specific caspase inhibitors and the mitochondrial membrane depolarization detector JC-1. It was demonstrated that SBL causes mitochondrial perturbation and the apoptotic signal is amplified by caspases and cell death is executed in a caspase-dependent manner. The efficacy of this combinational usage was shown for the first time, to distinguish the apoptotic pathway in detail. SBL selectively kills tumor cells, is able to exhibit cytotoxicity regardless of P-glycoprotein expression and has potential as an alternative to conventional DNA-damaging anticancer drugs.
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November 2013
Volume 43 Issue 5

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

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APA
Tatsuta, T., Hosono, M., Sugawara, S., Kariya, Y., Ogawa, Y., Hakomori, S., & Nitta, K. (2013). Sialic acid-binding lectin (leczyme) induces caspase-dependent apoptosis-mediated mitochondrial perturbation in Jurkat cells. International Journal of Oncology, 43, 1402-1412. https://doi.org/10.3892/ijo.2013.2092
MLA
Tatsuta, T., Hosono, M., Sugawara, S., Kariya, Y., Ogawa, Y., Hakomori, S., Nitta, K."Sialic acid-binding lectin (leczyme) induces caspase-dependent apoptosis-mediated mitochondrial perturbation in Jurkat cells". International Journal of Oncology 43.5 (2013): 1402-1412.
Chicago
Tatsuta, T., Hosono, M., Sugawara, S., Kariya, Y., Ogawa, Y., Hakomori, S., Nitta, K."Sialic acid-binding lectin (leczyme) induces caspase-dependent apoptosis-mediated mitochondrial perturbation in Jurkat cells". International Journal of Oncology 43, no. 5 (2013): 1402-1412. https://doi.org/10.3892/ijo.2013.2092