{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T14:51:15Z","timestamp":1783695075797,"version":"3.55.0"},"reference-count":44,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2024,3,12]],"date-time":"2024-03-12T00:00:00Z","timestamp":1710201600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["20K23067"],"award-info":[{"award-number":["20K23067"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["21K17102"],"award-info":[{"award-number":["21K17102"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Near-infrared photoimmunotherapy (NIR-PIT) is a novel cancer therapy based on a monoclonal antibody (mAb) conjugated to a photosensitizer (IR700Dye). The conjugate can be activated by near-infrared light irradiation, causing necrotic cell death with high selectivity. In this study, we investigated NIR-PIT using a small protein mimetic (6\u20137 kDa, Affibody) which has more rapid clearance and better tissue penetration than mAbs for epidermal growth factor receptor (EGFR)-positive salivary gland cancer (SGC). The level of EGFR expression was examined in vitro using immunocytochemistry and Western blotting. Cell viability was analyzed using the alamarBlue assay. In vivo, the volume of EGFR-positive tumors treated with NIR-PIT using the EGFR Affibody\u2013IR700Dye conjugate was followed for 43 days. It was found that NIR-PIT using the EGFR Affibody\u2013IR700Dye conjugate induced the selective destruction of EGFR-positive SGC cells and restricted the progression of EGFR-positive tumors. We expect that NIR-PIT using the EGFR Affibody\u2013IR700Dye conjugate can efficiently treat EGFR-positive SGC and preserve normal salivary function.<\/jats:p>","DOI":"10.3390\/ijms25063233","type":"journal-article","created":{"date-parts":[[2024,3,12]],"date-time":"2024-03-12T12:14:40Z","timestamp":1710245680000},"page":"3233","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Near-Infrared Photoimmunotherapy Using a Protein Mimetic for EGFR-Positive Salivary Gland Cancer"],"prefix":"10.3390","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1393-5855","authenticated-orcid":false,"given":"Haruka","family":"Yamaguchi","sequence":"first","affiliation":[{"name":"Department of Biochemistry, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata 951-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takamasa","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Faculty of Engineering, Niigata University, Niigata 950-2181, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasuo","family":"Okada","sequence":"additional","affiliation":[{"name":"Department of Pathology, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata 951-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junya","family":"Ono","sequence":"additional","affiliation":[{"name":"Department of Pathology, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata 951-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroto","family":"Sano","sequence":"additional","affiliation":[{"name":"Department of Pathology, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata 951-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akiko","family":"Banba","sequence":"additional","affiliation":[{"name":"Startup Incubation Center, Shimadzu Corporation, Kyoto 604-8511, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hideyuki","family":"Sakata","sequence":"additional","affiliation":[{"name":"Startup Incubation Center, Shimadzu Corporation, Kyoto 604-8511, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akihiro","family":"Ishikawa","sequence":"additional","affiliation":[{"name":"Startup Incubation Center, Shimadzu Corporation, Kyoto 604-8511, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takao","family":"Morita","sequence":"additional","affiliation":[{"name":"Department of Biochemistry, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata 951-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,3,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1685","DOI":"10.1038\/nm.2554","article-title":"Cancer Cell-Selective in Vivo near Infrared Photoimmunotherapy Targeting Specific Membrane Molecules","volume":"17","author":"Mitsunaga","year":"2011","journal-title":"Nat. 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