An integrated histopathological and cytogenetic analysis of intratumor heterogeneity of liposarcoma and its diagnostic application
Project/Area Number |
25460448
|
Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Human pathology
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Research Institution | Tokyo Metropolitan Komagome Hospital (Clinical research laboratory) |
Principal Investigator |
Motoi Toru 東京都立駒込病院(臨床研究室), その他部局等, その他 (50291315)
|
Co-Investigator(Kenkyū-buntansha) |
KATO Ikuma 東京都立駒込病院, 病理科, 医員 (80644939)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
Keywords | 脂肪肉腫 / 腫瘍内多様性 / 遺伝子増幅 / CISH法 / MDM2 / 肉腫 |
Outline of Final Research Achievements |
Well-differentiated liposarcoma(WLPS) and dedifferentiated liposarcoma(DLPS) are characterized by MDM2 gene amplification and resultant protein overexpression. In this study we examined cytogenetic, mRNA and protein status of MDM2 using a novel approach of simultaneous visualization of morphology, cytogenetic and molecular abnormalities. Although MDM2 abnormalities were only observed in a subset of tumor cells, clonal selection and condensation of these abnormal cells was occurred during dedifferentiation process, concurrently with loss of adipocytic differentiation. Present study may provide a new information useful for pathological diagnosis of liposarcomas as well as future molecular targeted therapy using MDM2 inhibitors.
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Report
(4 results)
Research Products
(58 results)
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[Journal Article] CIC-rearranged Sarcomas: A Study of 20 Cases and Comparisons With Ewing Sarcomas2016
Author(s)
Yoshida A, Goto K, Kodaira M, Kobayashi E, Kawamoto H, Mori T, Yoshimoto S, Endo O, Kodama N, Kushima R, Hiraoka N, Motoi T, Kawai A.
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Journal Title
Am J Surg Pathol.
Volume: 40
Issue: 3
Pages: 313-23
DOI
Related Report
Peer Reviewed
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[Journal Article] G-CSF産生乳腺多形癌の1例2016
Author(s)
佐野 直樹, 堀口 慎一郎, 山田 倫, 細井 敦子, 井寺 奈美, 山下 年成, 外岡 暁子, 元井 亨, 黒井 克昌, 比島 恒和
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Journal Title
診断病理
Volume: 33巻1号
Pages: 61-5
Related Report
Peer Reviewed
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[Journal Article] Myoepithelioma-like Tumors of the Vulvar Region: A Distinctive Group of SMARCB1-deficient Neoplasms2015
Author(s)
Yoshida A, Yoshida H, Yoshida M, Mori T, Kobayashi E, Tanzawa Y, Yasugi T, Kawana K, Ishikawa M, Sugiura H, Maeda D, Fukayama M, Kawai A, Hiraoka N, Motoi T.
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Journal Title
Am J Surg Pathol
Volume: 39
Issue: 8
Pages: 1102-13
DOI
Related Report
Peer Reviewed
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[Journal Article] A case of endobronchial NUT midline carcinoma with intraluminal growth2015
Author(s)
Watanabe S, Hirano S, Mine S, Yoshida A, Motoi T, Ishii S, Naka G, Takeda Y, Igari T, Sugiyama H, Kobayashi N
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Journal Title
Anticancer Res
Volume: 35
Pages: 1607-1612
Related Report
Peer Reviewed
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[Presentation] 骨軟部腫瘍 粘液性腫瘍2015
Author(s)
元井亨
Organizer
第1回国立がん研究センター腫瘍病理診断セミナー
Place of Presentation
国立がん研究センター(中央区・東京都)
Year and Date
2015-07-10
Related Report
Invited
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[Presentation] 軟部腫瘍の最近の知見2014
Author(s)
元井亨
Organizer
第137回電子顕微鏡技術研究会
Place of Presentation
虎の門病院(東京都港区)
Year and Date
2014-09-06
Related Report
Invited
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