Carcinoembryonic antigen as a specific glycoprotein ligand of rBC2LCN lectin on pancreatic ductal adenocarcinoma cells

The rBC2LCN lectin, known as a stem cell marker probe that binds to an H type 3 fucosylated trisaccharide motif, was recently revealed to also bind to pancreatic ductal adenocarcinoma (PDAC) cells. A lectin‐drug conjugate was generated by fusing rBC2LCN with a cytocidal toxin, and it showed a strong...

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Veröffentlicht in:Cancer science 2021-09, Vol.112 (9), p.3722-3731
Hauptverfasser: Furuta, Tomoaki, Oda, Tatsuya, Kiyoi, Kayo, Yusuke, Ozawa, Kimura, Sota, Kurimori, Ko, Miyazaki, Yoshihiro, Yu, Yang, Furuya, Kinji, Akashi, Yoshimasa, Shimomura, Osamu, Tateno, Hiroaki
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container_end_page 3731
container_issue 9
container_start_page 3722
container_title Cancer science
container_volume 112
creator Furuta, Tomoaki
Oda, Tatsuya
Kiyoi, Kayo
Yusuke, Ozawa
Kimura, Sota
Kurimori, Ko
Miyazaki, Yoshihiro
Yu, Yang
Furuya, Kinji
Akashi, Yoshimasa
Shimomura, Osamu
Tateno, Hiroaki
description The rBC2LCN lectin, known as a stem cell marker probe that binds to an H type 3 fucosylated trisaccharide motif, was recently revealed to also bind to pancreatic ductal adenocarcinoma (PDAC) cells. A lectin‐drug conjugate was generated by fusing rBC2LCN with a cytocidal toxin, and it showed a strong anticancer effect in in vitro and in vivo PDAC models. However, it is unclear which molecules are carrier proteins of rBC2LCN on PDAC cells. In this study, we identified a rBC2LCN‐positive glycoprotein expressed in PDAC. Tumor lysates of PDAC patient‐derived xenografts (PDXs) were coprecipitated with rBC2LCN lectin and analyzed by liquid chromatography–mass spectrometry. A total of 343 proteins were initially identified. We used a web‐based database to select five glycoproteins and independently evaluated their expression in PDAC by immunohistochemistry (IHC). Among them, we focused on carcinoembryonic antigen 5 (CEA) as the most cancer‐specific carrier protein in PDAC, as it showed the most prominent difference in expression rate between PDAC cells (74%) and normal pancreatic duct cells (0%, P > .0001). rBC2LCN lectin and CEA colocalization in PDAC samples was confirmed by double‐staining analysis. Furthermore, rBC2LCN‐precipitated fractions were blotted with an anti‐CEA polyclonal antibody (pAb), and CEA pAb–precipitated fractions were blotted with rBC2LCN lectin. The results demonstrate that CEA is in fact a ligand of rBC2LCN lectin. This study reports that carcinoembryonic antigen 5 (CEA) is a cancer‐specific rBC2LCN‐positive glycoprotein expressed in pancreatic ductal adenocarcinoma (PDAC). The rBC2LCN lectin, reported as a stem cell marker probe, has been detected in some cancers, and a glycan epitope of rBC2LCN, H type 3 fucosylated motif (Fucα1‐2Galβ1‐3GalNAc), could be a therapeutic target for cancers. This study showed for the first time that CEA is modified with α1‐2 fucose.
doi_str_mv 10.1111/cas.15023
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A lectin‐drug conjugate was generated by fusing rBC2LCN with a cytocidal toxin, and it showed a strong anticancer effect in in vitro and in vivo PDAC models. However, it is unclear which molecules are carrier proteins of rBC2LCN on PDAC cells. In this study, we identified a rBC2LCN‐positive glycoprotein expressed in PDAC. Tumor lysates of PDAC patient‐derived xenografts (PDXs) were coprecipitated with rBC2LCN lectin and analyzed by liquid chromatography–mass spectrometry. A total of 343 proteins were initially identified. We used a web‐based database to select five glycoproteins and independently evaluated their expression in PDAC by immunohistochemistry (IHC). Among them, we focused on carcinoembryonic antigen 5 (CEA) as the most cancer‐specific carrier protein in PDAC, as it showed the most prominent difference in expression rate between PDAC cells (74%) and normal pancreatic duct cells (0%, P &gt; .0001). rBC2LCN lectin and CEA colocalization in PDAC samples was confirmed by double‐staining analysis. Furthermore, rBC2LCN‐precipitated fractions were blotted with an anti‐CEA polyclonal antibody (pAb), and CEA pAb–precipitated fractions were blotted with rBC2LCN lectin. The results demonstrate that CEA is in fact a ligand of rBC2LCN lectin. This study reports that carcinoembryonic antigen 5 (CEA) is a cancer‐specific rBC2LCN‐positive glycoprotein expressed in pancreatic ductal adenocarcinoma (PDAC). The rBC2LCN lectin, reported as a stem cell marker probe, has been detected in some cancers, and a glycan epitope of rBC2LCN, H type 3 fucosylated motif (Fucα1‐2Galβ1‐3GalNAc), could be a therapeutic target for cancers. This study showed for the first time that CEA is modified with α1‐2 fucose.</description><identifier>ISSN: 1347-9032</identifier><identifier>EISSN: 1349-7006</identifier><identifier>DOI: 10.1111/cas.15023</identifier><identifier>PMID: 34115906</identifier><language>eng</language><publisher>HOBOKEN: Wiley</publisher><subject>Adenocarcinoma ; Analysis ; Animals ; Antibodies - immunology ; Antigens ; Bioinformatics ; Cancer ; Carcinoembryonic antigen ; Carcinoembryonic Antigen - immunology ; Carcinoembryonic Antigen - metabolism ; Carcinoma, Pancreatic Ductal - metabolism ; Carcinoma, Pancreatic Ductal - pathology ; Care and treatment ; Carrier Proteins - metabolism ; CEA ; CEA (Oncology) ; Cell Line, Tumor ; Female ; glycoprotein ; Glycoproteins ; GPI-Linked Proteins - immunology ; GPI-Linked Proteins - metabolism ; Heterografts ; Humans ; Immunohistochemistry ; Immunohistochemistry - methods ; Immunoprecipitation - methods ; lectin ; Lectins ; Lectins - metabolism ; Life Sciences &amp; Biomedicine ; Ligands ; Liquid chromatography ; Lysates ; Mass spectroscopy ; Mice ; Mice, Inbred ICR ; Mice, SCID ; Monoclonal antibodies ; Neoplasm Transplantation ; Oncology ; Original ; Pancreas ; Pancreatic cancer ; pancreatic ductal adenocarcinoma ; Pancreatic Neoplasms - metabolism ; Pancreatic Neoplasms - pathology ; Patients ; Polyclonal antibodies ; Prostate ; Proteins ; rBC2LCN ; Science &amp; Technology ; Software ; Stem cells ; Xenografts</subject><ispartof>Cancer science, 2021-09, Vol.112 (9), p.3722-3731</ispartof><rights>2021 The Authors. published by John Wiley &amp; Sons Australia, Ltd on behalf of Japanese Cancer Association.</rights><rights>2021 The Authors. Cancer Science published by John Wiley &amp; Sons Australia, Ltd on behalf of Japanese Cancer Association.</rights><rights>COPYRIGHT 2021 John Wiley &amp; Sons, Inc.</rights><rights>2021. This work is published under http://creativecommons.org/licenses/by-nc/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>true</woscitedreferencessubscribed><woscitedreferencescount>10</woscitedreferencescount><woscitedreferencesoriginalsourcerecordid>wos000667762200001</woscitedreferencesoriginalsourcerecordid><citedby>FETCH-LOGICAL-c6443-ee1ff56de6b3b8f4fd8fe30fb7704d13c926b6162070627a15075a1950277d83</citedby><cites>FETCH-LOGICAL-c6443-ee1ff56de6b3b8f4fd8fe30fb7704d13c926b6162070627a15075a1950277d83</cites><orcidid>0000-0001-8843-9605 ; 0000-0001-6115-0158 ; 0000-0001-5878-4459 ; 0000-0002-1851-964X ; 0000-0003-3006-1659</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8409409/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8409409/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,315,728,781,785,865,886,1418,2115,11567,27929,27930,39263,45579,45580,46057,46481,53796,53798</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/34115906$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Furuta, Tomoaki</creatorcontrib><creatorcontrib>Oda, Tatsuya</creatorcontrib><creatorcontrib>Kiyoi, Kayo</creatorcontrib><creatorcontrib>Yusuke, Ozawa</creatorcontrib><creatorcontrib>Kimura, Sota</creatorcontrib><creatorcontrib>Kurimori, Ko</creatorcontrib><creatorcontrib>Miyazaki, Yoshihiro</creatorcontrib><creatorcontrib>Yu, Yang</creatorcontrib><creatorcontrib>Furuya, Kinji</creatorcontrib><creatorcontrib>Akashi, Yoshimasa</creatorcontrib><creatorcontrib>Shimomura, Osamu</creatorcontrib><creatorcontrib>Tateno, Hiroaki</creatorcontrib><title>Carcinoembryonic antigen as a specific glycoprotein ligand of rBC2LCN lectin on pancreatic ductal adenocarcinoma cells</title><title>Cancer science</title><addtitle>CANCER SCI</addtitle><addtitle>Cancer Sci</addtitle><description>The rBC2LCN lectin, known as a stem cell marker probe that binds to an H type 3 fucosylated trisaccharide motif, was recently revealed to also bind to pancreatic ductal adenocarcinoma (PDAC) cells. A lectin‐drug conjugate was generated by fusing rBC2LCN with a cytocidal toxin, and it showed a strong anticancer effect in in vitro and in vivo PDAC models. However, it is unclear which molecules are carrier proteins of rBC2LCN on PDAC cells. In this study, we identified a rBC2LCN‐positive glycoprotein expressed in PDAC. Tumor lysates of PDAC patient‐derived xenografts (PDXs) were coprecipitated with rBC2LCN lectin and analyzed by liquid chromatography–mass spectrometry. A total of 343 proteins were initially identified. We used a web‐based database to select five glycoproteins and independently evaluated their expression in PDAC by immunohistochemistry (IHC). Among them, we focused on carcinoembryonic antigen 5 (CEA) as the most cancer‐specific carrier protein in PDAC, as it showed the most prominent difference in expression rate between PDAC cells (74%) and normal pancreatic duct cells (0%, P &gt; .0001). rBC2LCN lectin and CEA colocalization in PDAC samples was confirmed by double‐staining analysis. Furthermore, rBC2LCN‐precipitated fractions were blotted with an anti‐CEA polyclonal antibody (pAb), and CEA pAb–precipitated fractions were blotted with rBC2LCN lectin. The results demonstrate that CEA is in fact a ligand of rBC2LCN lectin. This study reports that carcinoembryonic antigen 5 (CEA) is a cancer‐specific rBC2LCN‐positive glycoprotein expressed in pancreatic ductal adenocarcinoma (PDAC). The rBC2LCN lectin, reported as a stem cell marker probe, has been detected in some cancers, and a glycan epitope of rBC2LCN, H type 3 fucosylated motif (Fucα1‐2Galβ1‐3GalNAc), could be a therapeutic target for cancers. This study showed for the first time that CEA is modified with α1‐2 fucose.</description><subject>Adenocarcinoma</subject><subject>Analysis</subject><subject>Animals</subject><subject>Antibodies - immunology</subject><subject>Antigens</subject><subject>Bioinformatics</subject><subject>Cancer</subject><subject>Carcinoembryonic antigen</subject><subject>Carcinoembryonic Antigen - immunology</subject><subject>Carcinoembryonic Antigen - metabolism</subject><subject>Carcinoma, Pancreatic Ductal - metabolism</subject><subject>Carcinoma, Pancreatic Ductal - pathology</subject><subject>Care and treatment</subject><subject>Carrier Proteins - metabolism</subject><subject>CEA</subject><subject>CEA (Oncology)</subject><subject>Cell Line, Tumor</subject><subject>Female</subject><subject>glycoprotein</subject><subject>Glycoproteins</subject><subject>GPI-Linked Proteins - immunology</subject><subject>GPI-Linked Proteins - metabolism</subject><subject>Heterografts</subject><subject>Humans</subject><subject>Immunohistochemistry</subject><subject>Immunohistochemistry - methods</subject><subject>Immunoprecipitation - methods</subject><subject>lectin</subject><subject>Lectins</subject><subject>Lectins - metabolism</subject><subject>Life Sciences &amp; 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Oda, Tatsuya ; Kiyoi, Kayo ; Yusuke, Ozawa ; Kimura, Sota ; Kurimori, Ko ; Miyazaki, Yoshihiro ; Yu, Yang ; Furuya, Kinji ; Akashi, Yoshimasa ; Shimomura, Osamu ; Tateno, Hiroaki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c6443-ee1ff56de6b3b8f4fd8fe30fb7704d13c926b6162070627a15075a1950277d83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Adenocarcinoma</topic><topic>Analysis</topic><topic>Animals</topic><topic>Antibodies - immunology</topic><topic>Antigens</topic><topic>Bioinformatics</topic><topic>Cancer</topic><topic>Carcinoembryonic antigen</topic><topic>Carcinoembryonic Antigen - immunology</topic><topic>Carcinoembryonic Antigen - metabolism</topic><topic>Carcinoma, Pancreatic Ductal - metabolism</topic><topic>Carcinoma, Pancreatic Ductal - pathology</topic><topic>Care and treatment</topic><topic>Carrier Proteins - metabolism</topic><topic>CEA</topic><topic>CEA (Oncology)</topic><topic>Cell Line, Tumor</topic><topic>Female</topic><topic>glycoprotein</topic><topic>Glycoproteins</topic><topic>GPI-Linked Proteins - immunology</topic><topic>GPI-Linked Proteins - metabolism</topic><topic>Heterografts</topic><topic>Humans</topic><topic>Immunohistochemistry</topic><topic>Immunohistochemistry - methods</topic><topic>Immunoprecipitation - methods</topic><topic>lectin</topic><topic>Lectins</topic><topic>Lectins - metabolism</topic><topic>Life Sciences &amp; 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A lectin‐drug conjugate was generated by fusing rBC2LCN with a cytocidal toxin, and it showed a strong anticancer effect in in vitro and in vivo PDAC models. However, it is unclear which molecules are carrier proteins of rBC2LCN on PDAC cells. In this study, we identified a rBC2LCN‐positive glycoprotein expressed in PDAC. Tumor lysates of PDAC patient‐derived xenografts (PDXs) were coprecipitated with rBC2LCN lectin and analyzed by liquid chromatography–mass spectrometry. A total of 343 proteins were initially identified. We used a web‐based database to select five glycoproteins and independently evaluated their expression in PDAC by immunohistochemistry (IHC). Among them, we focused on carcinoembryonic antigen 5 (CEA) as the most cancer‐specific carrier protein in PDAC, as it showed the most prominent difference in expression rate between PDAC cells (74%) and normal pancreatic duct cells (0%, P &gt; .0001). rBC2LCN lectin and CEA colocalization in PDAC samples was confirmed by double‐staining analysis. Furthermore, rBC2LCN‐precipitated fractions were blotted with an anti‐CEA polyclonal antibody (pAb), and CEA pAb–precipitated fractions were blotted with rBC2LCN lectin. The results demonstrate that CEA is in fact a ligand of rBC2LCN lectin. This study reports that carcinoembryonic antigen 5 (CEA) is a cancer‐specific rBC2LCN‐positive glycoprotein expressed in pancreatic ductal adenocarcinoma (PDAC). The rBC2LCN lectin, reported as a stem cell marker probe, has been detected in some cancers, and a glycan epitope of rBC2LCN, H type 3 fucosylated motif (Fucα1‐2Galβ1‐3GalNAc), could be a therapeutic target for cancers. This study showed for the first time that CEA is modified with α1‐2 fucose.</abstract><cop>HOBOKEN</cop><pub>Wiley</pub><pmid>34115906</pmid><doi>10.1111/cas.15023</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0001-8843-9605</orcidid><orcidid>https://orcid.org/0000-0001-6115-0158</orcidid><orcidid>https://orcid.org/0000-0001-5878-4459</orcidid><orcidid>https://orcid.org/0000-0002-1851-964X</orcidid><orcidid>https://orcid.org/0000-0003-3006-1659</orcidid><oa>free_for_read</oa></addata></record>
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identifier ISSN: 1347-9032
ispartof Cancer science, 2021-09, Vol.112 (9), p.3722-3731
issn 1347-9032
1349-7006
language eng
recordid cdi_crossref_primary_10_1111_cas_15023
source MEDLINE; DOAJ Directory of Open Access Journals; Wiley-Blackwell Open Access Titles; Web of Science - Science Citation Index Expanded - 2021<img src="https://exlibris-pub.s3.amazonaws.com/fromwos-v2.jpg" />; Wiley Online Library All Journals; PubMed Central
subjects Adenocarcinoma
Analysis
Animals
Antibodies - immunology
Antigens
Bioinformatics
Cancer
Carcinoembryonic antigen
Carcinoembryonic Antigen - immunology
Carcinoembryonic Antigen - metabolism
Carcinoma, Pancreatic Ductal - metabolism
Carcinoma, Pancreatic Ductal - pathology
Care and treatment
Carrier Proteins - metabolism
CEA
CEA (Oncology)
Cell Line, Tumor
Female
glycoprotein
Glycoproteins
GPI-Linked Proteins - immunology
GPI-Linked Proteins - metabolism
Heterografts
Humans
Immunohistochemistry
Immunohistochemistry - methods
Immunoprecipitation - methods
lectin
Lectins
Lectins - metabolism
Life Sciences & Biomedicine
Ligands
Liquid chromatography
Lysates
Mass spectroscopy
Mice
Mice, Inbred ICR
Mice, SCID
Monoclonal antibodies
Neoplasm Transplantation
Oncology
Original
Pancreas
Pancreatic cancer
pancreatic ductal adenocarcinoma
Pancreatic Neoplasms - metabolism
Pancreatic Neoplasms - pathology
Patients
Polyclonal antibodies
Prostate
Proteins
rBC2LCN
Science & Technology
Software
Stem cells
Xenografts
title Carcinoembryonic antigen as a specific glycoprotein ligand of rBC2LCN lectin on pancreatic ductal adenocarcinoma cells
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