Research Project
Fund for the Promotion of Joint International Research (Fostering Joint International Research)
Multiple myeloma (MM) is largely incurable, and is characterized by devastating bone destruction caused by increased osteoclast (OCL) differentiation and bone resorption in more than 85% of MM patients. OCLs in MM not only promote bone resorption but also increase MM cell growth and drug resistance. Despite recent advances in anti-myeloma treatment, development of anti-MM drug resistance is a major limitation of MM therapy. We demonstrate that TAK1 is constitutively phosphorylated though PP2A inactivation. TAK1 inhibition suppressed osteoclastogenesis, and restored osteoblastic differentiation suppressed by MM and thereby induction of anti-MM niche.IGF1 is a crucial factor for tumor cell growth and survival of malignant cells. We found that OCL-derived IGF1 plays a critical role in MM drug resistance and bone destruction.
本研究は、現在も尚重大な臨床課題として残されている腫瘍細胞と骨髄微小環境との細胞間相互作用がもたらす薬剤耐性を克服し、今まで困難と考えられていた骨破壊性悪性腫瘍における骨形成の回復・骨再生という患者QOLの改善に向けた新規治療法の開発に繋がる点に特色と意義がある。さらに、骨髄腫骨病変内に豊富に存在する骨髄間質細胞を骨芽細胞に分化誘導させることにより、骨欠損病変部に骨の再生とともに骨形成環境が生み出す腫瘍排他的ニッチを誘導するという革新的な再生・細胞治療法への展開が期待できる。
All 2022 2021 2020 2019 2018 2017
All Int'l Joint Research (1 results) Journal Article (13 results) (of which Int'l Joint Research: 3 results, Peer Reviewed: 13 results, Open Access: 10 results) Presentation (22 results) (of which Int'l Joint Research: 5 results, Invited: 2 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 1 results)
International Journal of Myeloma
Volume: 12 Pages: 14-23
Clinical & Translational Immunology
Volume: 11 Issue: 1
10.1002/cti2.1371
Haematologica
Volume: 107 Issue: 3 Pages: 744-749
10.3324/haematol.2021.278295
Cancers
Volume: 13 Issue: 17 Pages: 4441-4441
10.3390/cancers13174441
Volume: 106 Issue: 4 Pages: 1172-1177
10.3324/haematol.2019.244418
Cancers (Basel)
Volume: 12 Issue: 4 Pages: 929-929
10.3390/cancers12040929
120006894611
Volume: haematol.2019 Issue: 5 Pages: 1401-1413
10.3324/haematol.2019.234476
120007180361
JCI Insight
Volume: 5 Issue: 6
10.1172/jci.insight.133113
Oncotarget
Volume: 10 Issue: 20 Pages: 1903-1917
10.18632/oncotarget.26726
JBMR Plus
Volume: inpress Issue: 7
10.1002/jbm4.10182
British Journal of Haematology
Volume: 印刷中 Issue: 5 Pages: 969-974
10.1111/bjh.15673
Volume: 180(2) Issue: 2 Pages: 246-258
10.1111/bjh.15033
Molecular and Cellular Endocrinology
Volume: 印刷中 Pages: 251-258
10.1016/j.mce.2017.11.005