Hiroki Kawabata, Tomokazu Ohishi, Hiroyuki Suzuki, Teizo Asano, Manabu Kawada, Hiroyoshi Suzuki, Mika K Kaneko, Yukinari Kato
{"title":"一种去聚焦的小鼠抗cd10单克隆抗体(31-mG2a-f)在小鼠肾细胞癌异种移植模型中发挥抗肿瘤活性","authors":"Hiroki Kawabata, Tomokazu Ohishi, Hiroyuki Suzuki, Teizo Asano, Manabu Kawada, Hiroyoshi Suzuki, Mika K Kaneko, Yukinari Kato","doi":"10.1089/mab.2021.0049","DOIUrl":null,"url":null,"abstract":"<p><p>CD10 is a cell surface metalloendopeptidase that cleaves and degrades many secreted physiologically active peptides by its enzymatic activity. Although CD10 expression has been found in various types of cells, its expression is increased in several cancers, including renal cancer. In this study, the antitumor activity of a novel anti-human CD10 monoclonal antibody (mAb) was investigated. A defucosylated mouse IgG<sub>2a</sub> version of C<sub>10</sub>Mab-31 (31-mG<sub>2a</sub>-f) was created from an anti-CD10 mAb, C<sub>10</sub>Mab-31 (IgG<sub>1</sub>, kappa). Both C<sub>10</sub>Mab-31 and 31-mG<sub>2a</sub>-f specifically reacted with endogenous CD10 in renal cancer cells, VMRC-RCW, with the dissociation constant (<i>K</i><sub>D</sub>) values of 6.3 × 10<sup>-9</sup> M and 1.1 × 10<sup>-9</sup> M, respectively, indicating high binding affinity. To further examine the anti-CD10 mAb-mediated effector functions, the antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) were examined. The 31-mG<sub>2a</sub>-f significantly exhibited ADCC and CDC against VMRC-RCW cells <i>in vitro</i>. Furthermore, 31-mG<sub>2a</sub>-f exhibited antitumor activities in mouse xenografts of VMRC-RCW cells. These results suggest that 31-mG<sub>2a</sub>-f exerts antitumor activities against CD10-expressing renal cancers and could be a valuable therapeutic candidate for treating them.</p>","PeriodicalId":53514,"journal":{"name":"Monoclonal Antibodies in Immunodiagnosis and Immunotherapy","volume":"41 6","pages":"320-327"},"PeriodicalIF":0.0000,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"A Defucosylated Mouse Anti-CD10 Monoclonal Antibody (31-mG<sub>2a</sub>-f) Exerts Antitumor Activity in a Mouse Xenograft Model of Renal Cell Cancers.\",\"authors\":\"Hiroki Kawabata, Tomokazu Ohishi, Hiroyuki Suzuki, Teizo Asano, Manabu Kawada, Hiroyoshi Suzuki, Mika K Kaneko, Yukinari Kato\",\"doi\":\"10.1089/mab.2021.0049\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>CD10 is a cell surface metalloendopeptidase that cleaves and degrades many secreted physiologically active peptides by its enzymatic activity. Although CD10 expression has been found in various types of cells, its expression is increased in several cancers, including renal cancer. In this study, the antitumor activity of a novel anti-human CD10 monoclonal antibody (mAb) was investigated. A defucosylated mouse IgG<sub>2a</sub> version of C<sub>10</sub>Mab-31 (31-mG<sub>2a</sub>-f) was created from an anti-CD10 mAb, C<sub>10</sub>Mab-31 (IgG<sub>1</sub>, kappa). Both C<sub>10</sub>Mab-31 and 31-mG<sub>2a</sub>-f specifically reacted with endogenous CD10 in renal cancer cells, VMRC-RCW, with the dissociation constant (<i>K</i><sub>D</sub>) values of 6.3 × 10<sup>-9</sup> M and 1.1 × 10<sup>-9</sup> M, respectively, indicating high binding affinity. To further examine the anti-CD10 mAb-mediated effector functions, the antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) were examined. The 31-mG<sub>2a</sub>-f significantly exhibited ADCC and CDC against VMRC-RCW cells <i>in vitro</i>. Furthermore, 31-mG<sub>2a</sub>-f exhibited antitumor activities in mouse xenografts of VMRC-RCW cells. These results suggest that 31-mG<sub>2a</sub>-f exerts antitumor activities against CD10-expressing renal cancers and could be a valuable therapeutic candidate for treating them.</p>\",\"PeriodicalId\":53514,\"journal\":{\"name\":\"Monoclonal Antibodies in Immunodiagnosis and Immunotherapy\",\"volume\":\"41 6\",\"pages\":\"320-327\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Monoclonal Antibodies in Immunodiagnosis and Immunotherapy\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1089/mab.2021.0049\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Monoclonal Antibodies in Immunodiagnosis and Immunotherapy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1089/mab.2021.0049","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Medicine","Score":null,"Total":0}
A Defucosylated Mouse Anti-CD10 Monoclonal Antibody (31-mG2a-f) Exerts Antitumor Activity in a Mouse Xenograft Model of Renal Cell Cancers.
CD10 is a cell surface metalloendopeptidase that cleaves and degrades many secreted physiologically active peptides by its enzymatic activity. Although CD10 expression has been found in various types of cells, its expression is increased in several cancers, including renal cancer. In this study, the antitumor activity of a novel anti-human CD10 monoclonal antibody (mAb) was investigated. A defucosylated mouse IgG2a version of C10Mab-31 (31-mG2a-f) was created from an anti-CD10 mAb, C10Mab-31 (IgG1, kappa). Both C10Mab-31 and 31-mG2a-f specifically reacted with endogenous CD10 in renal cancer cells, VMRC-RCW, with the dissociation constant (KD) values of 6.3 × 10-9 M and 1.1 × 10-9 M, respectively, indicating high binding affinity. To further examine the anti-CD10 mAb-mediated effector functions, the antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) were examined. The 31-mG2a-f significantly exhibited ADCC and CDC against VMRC-RCW cells in vitro. Furthermore, 31-mG2a-f exhibited antitumor activities in mouse xenografts of VMRC-RCW cells. These results suggest that 31-mG2a-f exerts antitumor activities against CD10-expressing renal cancers and could be a valuable therapeutic candidate for treating them.