[Effect of Acute Myeloid Leukemia Cells on the Proliferation and Apoptosis of Bone Marrow-Derived Mesenchymal Stromal Cells].

Zhongguo Shi Yan Xue Ye Xue Za Zhi

Department of Hematology, Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China;Department of Oncology, Hetian District People's Hospital, Hetian 848000, Xinjiang Uygur Autonomous Region, China,E-mail:

Published: April 2022

AI Article Synopsis

  • The study aimed to understand how acute myeloid leukemia (AML) cells affect the growth and survival of bone marrow-derived mesenchymal stromal cells (BM-MSC).
  • Researchers used murine models of AML overexpressing MLL-AF9 to compare BM-MSC from wild type and AML mice, employing techniques like flow cytometry and fluorescence microscopy.
  • Results showed that BM-MSC from AML mice had an increased number and proliferation rate, with a reduced rate of apoptosis, indicating that AML cells enhance BM-MSC growth and survival.

Article Abstract

Objective: To investigate the effect of acute myeloid leukemia cells in leukemia-microenvironment on proliferation and apoptosis of bone marrow-derived mesenchymal stromal cells (BM-MSC).

Methods: Acute myeloid leukemia (AML) murine models overexpressing MLL-AF9 were established. The number of BM-MSC of wild type (WT) and AML-derived mice were analyzed by flow cytometry. Morphology and growth differences between WT and AML-derived BM-MSC were analyzed by inverted fluorescence microscope. Proliferation and apoptosis of BM-MSC between these two groups were detected by Brdu and Annexin V/PI.

Results: Compared with WT-derived BM-MSC, the number and proliferation rate of AML-derived BM-MSC significantly increased (P<0.01, P<0.001), while apoptosis rate decreased (P<0.05). When cultured in vitro, BM-MSC grew faster under conditional medium.

Conclusion: AML cells can promote proliferation and inhibit apoptosis of BM-MSC.

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http://dx.doi.org/10.19746/j.cnki.issn.1009-2137.2022.02.018DOI Listing

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