Target-selective photo-degradation of a sialyl Lewis a (sLea) conjugate and photo-cytotoxicity against sLea positive cancer cells using an anthraquinone-antibody hybrid

Daisuke Takahashi, Takashi Nagao, Shota Sotokawa, Kazunobu Toshima

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A purpose-designed anthraquinone-monoclonal antibody (anti-sialyl Lewis A (sLea) mAb) hybrid 6 selectively bound to and effectively degraded the target glycoprotein, HSA (human serum albumin)-sLea conjugate 4. Degradation was achieved using long wavelength UV light irradiation in the absence of any additives and under neutral conditions. Furthermore, the hybrid 6 exhibited selective photo-cytotoxicity against the sLea positive cancer cells A431 and WiDr cells only upon photo-irradiation.

Original languageEnglish
Pages (from-to)1224-1228
Number of pages5
Issue number6
Publication statusPublished - 2016


ASJC Scopus subject areas

  • Biochemistry
  • Pharmaceutical Science

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