Modification of nitric oxide donors onto a monoclonal antibody boosts accumulation in solid tumors

Takuma Yoshikawa, Khanh Quoc Phan, Hiroshi Tagawa, Koichi Sasaki, Haitao Feng, Akihiro Kishimura, Takeshi Mori, Yoshiki Katayama

研究成果: Contribution to journalArticle

抜粋

Although monoclonal antibodies (mAbs) have revolutionized cancer treatment, their accumulation in solid tumors is limited and requires improvement to enhance therapeutic efficacy. Here we developed a strategy to modify mAb with a donor of nitric oxide (NO) because NO functions to vasodilate as well as to enhance the permeability of vascular endothelium, which will contribute to enhancing the tumor accumulation of mAb. We selected S-nitrosothiol as a NO donor and established the procedure to modify S-nitrosothiol group on mAb under ambient conditions. The modified mAb (Ab-SNO) thus obtained released NO in a preferable speed and maintained its original properties such as binding affinity to a target antigen and efficacy to induce antibody-dependent cellular cytotoxicity. We demonstrated that Ab-SNO enhanced the tumor accumulation of co-administered proteins such as antibody and serum albumin.

元の言語英語
記事番号119352
ジャーナルInternational Journal of Pharmaceutics
583
DOI
出版物ステータス出版済み - 6 15 2020

All Science Journal Classification (ASJC) codes

  • Pharmaceutical Science

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