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Combination of carbon-ion beam and dual tyrosine kinase inhibitor, lapatinib, effectively destroys HER2 positive breast cancer stem-like cells.
https://repo.qst.go.jp/records/80478
https://repo.qst.go.jp/records/80478b77727d3-ef65-4027-94f7-9953aab822ec
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-09-11 | |||||
タイトル | ||||||
タイトル | Combination of carbon-ion beam and dual tyrosine kinase inhibitor, lapatinib, effectively destroys HER2 positive breast cancer stem-like cells. | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Sai, Sei
× Sai, Sei× Ho Kim, Eun× Vares, Guillaume× Suzuki, Masao× Yu, Dong× Horimoto, Yoshiya× Hayashi, Mitsuhiro× Sai, Sei× Ho Kim, Eun× Vares, Guillaume× Suzuki, Masao× Yu, Dong× Horimoto, Yoshiya |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | To investigate whether carbon-ion beam alone, or in combination with lapatinib, has a beneficial effect in targeting HER2-positive breast cancer stem-like cells (CSCs) compared to that of X-rays, human breast CSCs derived from BT474 and SKBR3 cell lines were treated with a carbon-ion beam or X-rays irradiation alone or in combination with lapatinib, and then cell viability, spheroid formation assays, apoptotic analyses, gene expression analysis of related genes, and -H2AX foci were performed. Spheroid formation assays confirmed that ESA+/CD24- cells have CSC properties compared to ESA-/CD24+ cells. CSCs were more highly enriched after X-ray irradiation combined with lapatinib, whereas carbon-ion beam combined with lapatinib significantly decreased the proportion of CSCs. Carbon-ion beam combined with lapatinib significantly suppressed spheroid formation compared to X-rays combined with lapatinib or carbon ion beam alone. Cell cycle analysis showed that carbon ion beam combined with lapatinib predominantly enhanced sub-G1 and G2/M arrested population compared to that of carbon-ion beam, X-ray treatments alone. Carbon-ion beam combined with lapatinib significantly enhanced apoptosis and carbon-ion beam alone dose-dependently increased autophagy-related expression of Beclin1 and in combination with lapatinib greatly enhanced ATG7 expression at protein levels. In addition, a large-sized H2AX foci in CSCs were induced by carbon ion beam combined with lapatinib treatment in CSCs compared to cells receiving X-rays or carbon-ion beam alone. Altogether, combination of carbon-ion beam irradiation and lapatinib has a high potential to kill HER2-positive breast CSCs, causing severe irreparable DNA damage, enhanced autophagy, and apoptosis. | |||||
書誌情報 |
American journal of cancer research 巻 10, 号 8, p. 2371-2386, 発行日 2020-08 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2156-6976 | |||||
PubMed番号 | ||||||
識別子タイプ | PMID | |||||
関連識別子 | 32905515 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://ajcr.us/AJCR_V10N8.html |