| Budget Amount *help |
¥46,800,000 (Direct Cost: ¥36,000,000、Indirect Cost: ¥10,800,000)
Fiscal Year 2014: ¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
Fiscal Year 2013: ¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2012: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
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| Outline of Final Research Achievements |
mTOR is an evolutionarily conserved kinase that plays a critical role in sensing and responding to nutrients. In this study, we investigated roles of mTOR complex 1 (mTORC1) in hematopoiesis and leukemogenesis. In an acute myeloid leukemia model, deficiency of Raptor, an essential component of mTORC1, significantly suppressed leukemia progression by causing apoptosis of differentiated cells, but did not affect self-renewal of leukemia stem cells. In contrast, we found that mTORC1 plays a critical role in the development of both early T-cell progenitors and leukemia. Thus, understanding the cell-context-dependent role of mTORC1 illustrates the potential importance of mTOR signals as therapeutic targets.
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