Single domain based bispecific antibody, Muc1-Bi-1, and its humanized form, Muc1-Bi-2, induce potent cancer cell killing in muc1 positive tumor cells
Muc1 is one of the most studied tumor antigens. However, antibodies or antibody-toxin conjugates against Muc1 have not shown significant efficacy for tumors with Muc1 overexpression. In this study, we employed bispecific antibody approach to target Muc1 positive tumor cells. A novel bispecific antib...
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description | Muc1 is one of the most studied tumor antigens. However, antibodies or antibody-toxin conjugates against Muc1 have not shown significant efficacy for tumors with Muc1 overexpression. In this study, we employed bispecific antibody approach to target Muc1 positive tumor cells. A novel bispecific antibody, Muc1-Bi-1, was constructed by linking single domain antibodies, anti-Muc1-VHH and anti-CD16-VHH. Muc1-Bi-2, the humanized form of Muc1-Bi-1, was also constructed by grafting. Both Muc1-Bi bispecific antibodies can be efficiently expressed and purified from bacteria. In vitro, the Muc1-Bi bispecific antibodies can recruit Natural Killer (NK) cells to drive potent and specific cell killing of Muc1-overexpressing tumor cells. In xenograft model, the Muc1-Bi bispecific antibodies can suppress tumor growth in the presence of human peripheral blood mononuclear cells (PBMC). These data suggested that the single domain based Muc1-Bi may provide a valid strategy for targeting tumors with Muc1 overexpression. |
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However, antibodies or antibody-toxin conjugates against Muc1 have not shown significant efficacy for tumors with Muc1 overexpression. In this study, we employed bispecific antibody approach to target Muc1 positive tumor cells. A novel bispecific antibody, Muc1-Bi-1, was constructed by linking single domain antibodies, anti-Muc1-VHH and anti-CD16-VHH. Muc1-Bi-2, the humanized form of Muc1-Bi-1, was also constructed by grafting. Both Muc1-Bi bispecific antibodies can be efficiently expressed and purified from bacteria. In vitro, the Muc1-Bi bispecific antibodies can recruit Natural Killer (NK) cells to drive potent and specific cell killing of Muc1-overexpressing tumor cells. In xenograft model, the Muc1-Bi bispecific antibodies can suppress tumor growth in the presence of human peripheral blood mononuclear cells (PBMC). These data suggested that the single domain based Muc1-Bi may provide a valid strategy for targeting tumors with Muc1 overexpression.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0191024</identifier><identifier>PMID: 29357376</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Amino acids ; Animals ; Antibodies ; Antibodies, Bispecific - genetics ; Antibodies, Bispecific - immunology ; Antigen (tumor-associated) ; Antigens ; Bacteria ; Biochemistry ; Biology ; Biology and life sciences ; Bispecific antibodies ; Cancer ; Cancer therapies ; CD16 antigen ; Cell Line, Tumor ; Cell Proliferation ; CHO Cells ; Chromatography ; Cricetulus ; Cytotoxicity ; Enzyme-Linked Immunosorbent Assay ; Flow Cytometry ; Humans ; Immunoglobulins ; Immunotherapy ; Leukocytes (mononuclear) ; Lymphocytes ; Medicine and health sciences ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Mucin-1 - immunology ; Nanobodies ; Natural killer cells ; Neoplasms - pathology ; Ovarian cancer ; Peripheral blood mononuclear cells ; Pharmaceutical sciences ; Proteins ; Research and Analysis Methods ; Toxins ; Tumor cells ; Tumorigenesis ; Tumors ; Xenografts</subject><ispartof>PloS one, 2018-01, Vol.13 (1), p.e0191024-e0191024</ispartof><rights>2018 Li et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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However, antibodies or antibody-toxin conjugates against Muc1 have not shown significant efficacy for tumors with Muc1 overexpression. In this study, we employed bispecific antibody approach to target Muc1 positive tumor cells. A novel bispecific antibody, Muc1-Bi-1, was constructed by linking single domain antibodies, anti-Muc1-VHH and anti-CD16-VHH. Muc1-Bi-2, the humanized form of Muc1-Bi-1, was also constructed by grafting. Both Muc1-Bi bispecific antibodies can be efficiently expressed and purified from bacteria. In vitro, the Muc1-Bi bispecific antibodies can recruit Natural Killer (NK) cells to drive potent and specific cell killing of Muc1-overexpressing tumor cells. In xenograft model, the Muc1-Bi bispecific antibodies can suppress tumor growth in the presence of human peripheral blood mononuclear cells (PBMC). These data suggested that the single domain based Muc1-Bi may provide a valid strategy for targeting tumors with Muc1 overexpression.</description><subject>Amino acids</subject><subject>Animals</subject><subject>Antibodies</subject><subject>Antibodies, Bispecific - genetics</subject><subject>Antibodies, Bispecific - immunology</subject><subject>Antigen (tumor-associated)</subject><subject>Antigens</subject><subject>Bacteria</subject><subject>Biochemistry</subject><subject>Biology</subject><subject>Biology and life sciences</subject><subject>Bispecific antibodies</subject><subject>Cancer</subject><subject>Cancer therapies</subject><subject>CD16 antigen</subject><subject>Cell Line, Tumor</subject><subject>Cell Proliferation</subject><subject>CHO Cells</subject><subject>Chromatography</subject><subject>Cricetulus</subject><subject>Cytotoxicity</subject><subject>Enzyme-Linked Immunosorbent Assay</subject><subject>Flow Cytometry</subject><subject>Humans</subject><subject>Immunoglobulins</subject><subject>Immunotherapy</subject><subject>Leukocytes (mononuclear)</subject><subject>Lymphocytes</subject><subject>Medicine and health sciences</subject><subject>Mice</subject><subject>Mice, Inbred NOD</subject><subject>Mice, SCID</subject><subject>Mucin-1 - immunology</subject><subject>Nanobodies</subject><subject>Natural killer cells</subject><subject>Neoplasms - pathology</subject><subject>Ovarian cancer</subject><subject>Peripheral blood mononuclear cells</subject><subject>Pharmaceutical sciences</subject><subject>Proteins</subject><subject>Research and Analysis Methods</subject><subject>Toxins</subject><subject>Tumor cells</subject><subject>Tumorigenesis</subject><subject>Tumors</subject><subject>Xenografts</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><sourceid>DOA</sourceid><recordid>eNptkttu1DAQhiMEoqXwBggsccPFZvEhjuMbJKg4VCriAri2fJhsvST2YieVynvwvnjZtLSIK4_G3_wz82uq6inBa8IEebWNcwp6WO9igDUmkmDa3KuOiWS0bilm92_FR9WjnLcYc9a17cPqiErGBRPtcfXriw-bAZCLo_YBGZ3BIePzDqzvvUU6TN5Ed7VCn2ZL6re-JquSdMhPGV3Mow7-Z6noYxr_InSFfHCzBbSLE4QJWR0sJGRhGNB3PwylZyHQWPiCZD_5S0DTPMYDkx9XD3o9ZHiyvCfVt_fvvp5-rM8_fzg7fXNeW07bqeZGG8kpyN7ZRlBmqetw3wGxTgCGVmLhGsMosS0Qpg2mxTjbMcutBo0NO6meH3R3Q8xqcTQrIjspuSSMFeLsQLiot2qX_KjTlYraqz-JmDZKp8nbAZRlDhqmO06Za0ooTckQYoTosOYOF63XS7fZjOBscSbp4Y7o3Z_gL9QmXiouhGi5LAIvF4EUf8yQJzX6vDdMB4jzfm6JG0ka2hb0xT_o_7drDpRNMecE_c0wBKv9lV1Xqf2VqeXKStmz24vcFF2fFfsN_xnRTQ</recordid><startdate>20180101</startdate><enddate>20180101</enddate><creator>Li, Yumei</creator><creator>Zhou, Changhua</creator><creator>Li, Jing</creator><creator>Liu, Jiayu</creator><creator>Lin, Limin</creator><creator>Li, Li</creator><creator>Cao, Donglin</creator><creator>Li, Qing</creator><creator>Wang, Zhong</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0003-0864-3038</orcidid></search><sort><creationdate>20180101</creationdate><title>Single domain based bispecific antibody, Muc1-Bi-1, and its humanized form, Muc1-Bi-2, induce potent cancer cell killing in muc1 positive tumor cells</title><author>Li, Yumei ; Zhou, Changhua ; Li, Jing ; Liu, Jiayu ; Lin, Limin ; Li, Li ; Cao, Donglin ; Li, Qing ; Wang, Zhong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c526t-5bab952e9fdc4723c2d80f8e1cd7e0e6907d4b321c6e13ab02371c83c5caea0b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Amino acids</topic><topic>Animals</topic><topic>Antibodies</topic><topic>Antibodies, Bispecific - 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Yumei</au><au>Zhou, Changhua</au><au>Li, Jing</au><au>Liu, Jiayu</au><au>Lin, Limin</au><au>Li, Li</au><au>Cao, Donglin</au><au>Li, Qing</au><au>Wang, Zhong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Single domain based bispecific antibody, Muc1-Bi-1, and its humanized form, Muc1-Bi-2, induce potent cancer cell killing in muc1 positive tumor cells</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2018-01-01</date><risdate>2018</risdate><volume>13</volume><issue>1</issue><spage>e0191024</spage><epage>e0191024</epage><pages>e0191024-e0191024</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Muc1 is one of the most studied tumor antigens. However, antibodies or antibody-toxin conjugates against Muc1 have not shown significant efficacy for tumors with Muc1 overexpression. In this study, we employed bispecific antibody approach to target Muc1 positive tumor cells. A novel bispecific antibody, Muc1-Bi-1, was constructed by linking single domain antibodies, anti-Muc1-VHH and anti-CD16-VHH. Muc1-Bi-2, the humanized form of Muc1-Bi-1, was also constructed by grafting. Both Muc1-Bi bispecific antibodies can be efficiently expressed and purified from bacteria. In vitro, the Muc1-Bi bispecific antibodies can recruit Natural Killer (NK) cells to drive potent and specific cell killing of Muc1-overexpressing tumor cells. In xenograft model, the Muc1-Bi bispecific antibodies can suppress tumor growth in the presence of human peripheral blood mononuclear cells (PBMC). These data suggested that the single domain based Muc1-Bi may provide a valid strategy for targeting tumors with Muc1 overexpression.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>29357376</pmid><doi>10.1371/journal.pone.0191024</doi><orcidid>https://orcid.org/0000-0003-0864-3038</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Amino acids Animals Antibodies Antibodies, Bispecific - genetics Antibodies, Bispecific - immunology Antigen (tumor-associated) Antigens Bacteria Biochemistry Biology Biology and life sciences Bispecific antibodies Cancer Cancer therapies CD16 antigen Cell Line, Tumor Cell Proliferation CHO Cells Chromatography Cricetulus Cytotoxicity Enzyme-Linked Immunosorbent Assay Flow Cytometry Humans Immunoglobulins Immunotherapy Leukocytes (mononuclear) Lymphocytes Medicine and health sciences Mice Mice, Inbred NOD Mice, SCID Mucin-1 - immunology Nanobodies Natural killer cells Neoplasms - pathology Ovarian cancer Peripheral blood mononuclear cells Pharmaceutical sciences Proteins Research and Analysis Methods Toxins Tumor cells Tumorigenesis Tumors Xenografts |
title | Single domain based bispecific antibody, Muc1-Bi-1, and its humanized form, Muc1-Bi-2, induce potent cancer cell killing in muc1 positive tumor cells |
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