Lysine-specific demethylase 1A (LSD1) restricts ex vivo propagation of human HSCs and is a target of UM171
(2020) In Blood 136(19). p.2151-2161- Abstract
Culture conditions in which hematopoietic stem cells (HSCs) can be expanded for clinical benefit are highly sought after. Here, we report that inhibition of the epigenetic regulator Lysine-specific histone demethylase 1A (LSD1) induces a rapid expansion of human cord blood derived CD34+ cells and promotes in vitro propagation of long-term repopulating HSCs by preventing differentiation. The phenotype and molecular characteristics of cells treated with LSD1 inhibitors were highly similar to cells treated with UM171, an agent promoting expansion of HSCs through undefined mechanisms, and currently tested in clinical trials. Strikingly, we found that LSD1 as well as other members of the LSD1 containing chromatin remodeling complex CoREST... (More)
Culture conditions in which hematopoietic stem cells (HSCs) can be expanded for clinical benefit are highly sought after. Here, we report that inhibition of the epigenetic regulator Lysine-specific histone demethylase 1A (LSD1) induces a rapid expansion of human cord blood derived CD34+ cells and promotes in vitro propagation of long-term repopulating HSCs by preventing differentiation. The phenotype and molecular characteristics of cells treated with LSD1 inhibitors were highly similar to cells treated with UM171, an agent promoting expansion of HSCs through undefined mechanisms, and currently tested in clinical trials. Strikingly, we found that LSD1 as well as other members of the LSD1 containing chromatin remodeling complex CoREST are rapidly poly-ubiquitinated and degraded upon UM171 treatment. CRISPR/Cas9 depletion of the CoREST core member, RCOR1, resulted in expansion of CD34+ cells similar to LSD1 inhibition and UM171. Taken together, LSD1 and CoREST restrict HSC expansion, and are principal targets of UM171, forming a mechanistic basis for the HSC promoting activity of UM171.
(Less)
- author
- organization
-
- StemTherapy: National Initiative on Stem Cells for Regenerative Therapy
- Division of Molecular Medicine and Gene Therapy
- Experimental oncology (research group)
- Hematopoiesis and Gene Therapy (research group)
- LUCC: Lund University Cancer Centre
- Stem Cells to Red Blood Cells (research group)
- WCMM-Wallenberg Centre for Molecular Medicine
- publishing date
- 2020-11-05
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Blood
- volume
- 136
- issue
- 19
- pages
- 11 pages
- publisher
- American Society of Hematology
- external identifiers
-
- pmid:32582923
- scopus:85095862481
- ISSN
- 1528-0020
- DOI
- 10.1182/blood.2020005827
- language
- English
- LU publication?
- yes
- additional info
- Copyright © 2020 American Society of Hematology.
- id
- 3308a54c-1536-49df-9446-e9cc11d8f37d
- date added to LUP
- 2020-07-06 23:57:10
- date last changed
- 2024-04-03 07:52:09
@article{3308a54c-1536-49df-9446-e9cc11d8f37d, abstract = {{<p>Culture conditions in which hematopoietic stem cells (HSCs) can be expanded for clinical benefit are highly sought after. Here, we report that inhibition of the epigenetic regulator Lysine-specific histone demethylase 1A (LSD1) induces a rapid expansion of human cord blood derived CD34+ cells and promotes in vitro propagation of long-term repopulating HSCs by preventing differentiation. The phenotype and molecular characteristics of cells treated with LSD1 inhibitors were highly similar to cells treated with UM171, an agent promoting expansion of HSCs through undefined mechanisms, and currently tested in clinical trials. Strikingly, we found that LSD1 as well as other members of the LSD1 containing chromatin remodeling complex CoREST are rapidly poly-ubiquitinated and degraded upon UM171 treatment. CRISPR/Cas9 depletion of the CoREST core member, RCOR1, resulted in expansion of CD34+ cells similar to LSD1 inhibition and UM171. Taken together, LSD1 and CoREST restrict HSC expansion, and are principal targets of UM171, forming a mechanistic basis for the HSC promoting activity of UM171.</p>}}, author = {{Subramaniam, Agatheeswaran and Zemaitis, Kristijonas and Safaee Talkhoncheh, Mehrnaz and Yudovich, David and Bäckström, Alexandra and Debnath, Shubhranshu and Chen, Jun and Jain, Mayur Vilas and Galeev, Roman and Gaetani, Massimiliano and Zubarev, Roman A and Larsson, Jonas}}, issn = {{1528-0020}}, language = {{eng}}, month = {{11}}, number = {{19}}, pages = {{2151--2161}}, publisher = {{American Society of Hematology}}, series = {{Blood}}, title = {{Lysine-specific demethylase 1A (LSD1) restricts ex vivo propagation of human HSCs and is a target of UM171}}, url = {{http://dx.doi.org/10.1182/blood.2020005827}}, doi = {{10.1182/blood.2020005827}}, volume = {{136}}, year = {{2020}}, }