Comprehensive study to optimize the treatment of breast cancer in older patients
| Project/Area Number |
16K08660
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Human pathology
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| Research Institution | Toho University |
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Principal Investigator |
Honma Naoko 東邦大学, 医学部, 准教授 (70321875)
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| Project Period (FY) |
2016-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 高齢者乳癌 / 内分泌療法 / 副作用 / エストロゲン / トリプルネガティブ / 高齢者 / 乳癌 / アポクリン癌 / 粘液癌 / 病理学 |
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| Outline of Final Research Achievements |
The purpose of this study is to optimize the treatment of breast cancer in older patients. (i) We surveyed fifteen subjective symptoms by a questionnaire. Among older patients, many symptoms were significantly more frequent/severe with AIs than with SERMs, compared with contols, which suggests a difference in the profile of adverse events according to the type of endocrine therapy and the patient’s age. (ii) Triple-negative carcinoma with special histology (particularly, carcinoma with apocrine differentiation and metaplastic carcinoma) or with AR positivity was more frequent in older patients than in younger patients. (iii) Concentrations of estrogens were examined in breast cancerous tissue, non-cancerous tissue, and serum from older patients; and variations of concentrations were found for each case suggesting the different metabolism among cases.
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| Academic Significance and Societal Importance of the Research Achievements |
超高齢社会にあって高齢者乳癌の治療適正化は急務だが、生物学的特徴や薬剤の副作用については不明な点が多かった。本研究により、高齢乳癌患者では多くの症状の出現率・程度が、抗エストロゲン薬でアロマターゼ阻害薬よりも有意に低く、QOL維持の観点からは抗エストロゲン薬が有利な可能性があることがわかった。また、triple-negative乳癌は一般的には化学療法の対象となるが、高齢者ではアンドロゲン受容体陽性率が高いため、アンドロゲン受容体標的療法への期待がもたれる。
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Report
(5 results)
Research Products
(34 results)
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[Journal Article] Subtypes of Breast Cancer in Lao P.D.R.: A Study in a Limited-Resource Setting2019
Author(s)
Luangxay T, Virachith S, Hando K, Vilayvong S, Xaysomphet P, Arounlangsy P, Phongsavan K, Mieno MN, Honma N, Kitagawa M, Sawabe M.
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Journal Title
Asian Pac J Cancer Prev.
Volume: 20(2)
Pages: 589-594
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] Systematic therapy for and prognosis of older stage II and III breast cancer patients: evaluation of data from the Japanese Breast Cancer Registry.2019
Author(s)
Akimitsu Yamada, Masataka Sawaki, Hiraku Kumamaru, Hiroaki Miyata, Kanako Nakayama, Chikako Shimizu, Mika Miyashita, Naoko Honma, Itaru Endo, Naruto Taira, Shigehira Saji
Organizer
The 2019 San Antonio Breast Cancer Symposium, San Antonio, Texas, USA
Related Report
Int'l Joint Research
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[Presentation] Cytological characteristics of poorly differentiated squamous cell carcinomas of the breast. -Comparison between cytological findings of invasive ductal carcinoma and apocrine carcinoma-2016
Author(s)
Mayumi Kinoshita, Yuri Hamashima, Shikine Esaka, Masayuki Imaizumi, Hiroto Shirahata, Akemi Suzuki, Yoko Matsuda, Tomio Arai, Yurie Soejima, Motoji Sawabe, Naoko Honma
Organizer
XXXI International Congress of the International Academy of Pathology
Place of Presentation
Cologne (Germany)
Year and Date
2016-09-28
Related Report
Int'l Joint Research
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