» Articles » PMID: 20180051

The ROCK Inhibitor Y-27632 Negatively Affects the Expansion/survival of Both Fresh and Cryopreserved Cord Blood-derived CD34+ Hematopoietic Progenitor Cells: Y-27632 Negatively Affects the Expansion/survival of CD34+HSPCs

Overview
Publisher Springer
Specialty Cell Biology
Date 2010 Feb 25
PMID 20180051
Citations 25
Authors
Affiliations
Soon will be listed here.
Abstract

Cord blood (CB) is an unlimited source of hematopoietic stem and progenitor cells (HSPC). The use of cryopreserved CB-derived CD34+ HSPCs is successful in children and usually leads to rapid hematopoietic recovery upon transplantation. However, current methods for ex vivo expansion of HSPCs still result in a loss of multilineage differentiation potential and current freeze-thawing protocols result in significant cell death and loss of CD34+ HSPCs. The major cause for the loss of viability after slow freezing is apoptosis induced directly by cryoinjury. Very recent reports have demonstrated that Y-27632, a selective and robust ROCK inhibitor is a potent inhibitor of the apoptosis and is efficient in enhancing the post-thaw survival and recovery of different human stem cells including human embryos, hESCs, induced pluripotent stem cells and mesenchymal stem cells. Here, we analyzed the effect of such an inhibitor in CB-derived CD34+ HSPCs. CB-derived CD34+ HSPCs were MACS-isolated and treated with or without 10 microM of Y-27632. The effect of Y-27632 on culture homeostasis was determined in both fresh and cryopreserved CB-derived CD34+ HSPCs. Our results indicate that the Y-27632 not only dramatically inhibits cell expansion of both fresh and cryopreserved CD34+ HSPCs but also impairs survival/recovery of CD34+ HSPCs upon thawing regardless whether Y-27632 is added to both the cryopreservation and the expansion media and or just to the expansion culture medium with or without hematopoietic cytokines. This study identifies for the first time a detrimental effect of Y-27632 on the expansion and survival of both fresh and cryopreserved CB-derived CD34+ HSPCs, suggesting that Y-27632 may have a differential impact on distinct lineage/tissue-specific stem cells. Our data suggest different functions of Y-27632 on human stem cells growing in suspension versus those growing attached to either treated tissue culture plastic or extracellular matrix. We discourage any clinical application of Y-27632 in potential technical developments aimed at improving cryopreservation procedures of CB-derived cells and/or in vitro expansion of HSPCs without spontaneous differentiation.

Citing Articles

SKF-96365 Expels Tyrosine Kinase Inhibitor-Treated CML Stem and Progenitor Cells from the HS27A Stromal Cell Niche in a RhoA-Dependent Mechanism.

Dubourg A, Harnois T, Cousin L, Constantin B, Bourmeyster N Cancers (Basel). 2024; 16(16).

PMID: 39199564 PMC: 11352811. DOI: 10.3390/cancers16162791.


Influence of Rho/ROCK inhibitor Y-27632 on proliferation of equine mesenchymal stromal cells.

Melzer M, Burk J, Guest D, Dudhia J Front Vet Sci. 2023; 10:1154987.

PMID: 37346276 PMC: 10279950. DOI: 10.3389/fvets.2023.1154987.


The Multi-Kinase Inhibitor EC-70124 Is a Promising Candidate for the Treatment of FLT3-ITD-Positive Acute Myeloid Leukemia.

Lopez-Millan B, Costales P, Gutierrez-Aguera F, de la Guardia R, Roca-Ho H, Vinyoles M Cancers (Basel). 2022; 14(6).

PMID: 35326743 PMC: 8946166. DOI: 10.3390/cancers14061593.


Sand-mediated ice seeding enables serum-free low-cryoprotectant cryopreservation of human induced pluripotent stem cells.

Jiang B, Li W, Stewart S, Ou W, Liu B, Comizzoli P Bioact Mater. 2021; 6(12):4377-4388.

PMID: 33997514 PMC: 8111032. DOI: 10.1016/j.bioactmat.2021.04.025.


Cryopreservation of Hematopoietic Stem Cells: Emerging Assays, Cryoprotectant Agents, and Technology to Improve Outcomes.

Hornberger K, Yu G, McKenna D, Hubel A Transfus Med Hemother. 2019; 46(3):188-196.

PMID: 31244587 PMC: 6558318. DOI: 10.1159/000496068.


References
1.
Li X, Krawetz R, Liu S, Meng G, Rancourt D . ROCK inhibitor improves survival of cryopreserved serum/feeder-free single human embryonic stem cells. Hum Reprod. 2008; 24(3):580-9. DOI: 10.1093/humrep/den404. View

2.
Menendez P, Bueno C, Wang L, Bhatia M . Human embryonic stem cells: potential tool for achieving immunotolerance?. Stem Cell Rev. 2006; 1(2):151-8. DOI: 10.1385/SCR:1:2:151. View

3.
Gauthaman K, Fong C, Bongso A . Effect of ROCK inhibitor Y-27632 on normal and variant human embryonic stem cells (hESCs) in vitro: its benefits in hESC expansion. Stem Cell Rev Rep. 2009; 6(1):86-95. DOI: 10.1007/s12015-009-9107-8. View

4.
Catalina P, Bueno C, Montes R, Nieto A, Ligero G, Sanchez L . Genetic stability of human embryonic stem cells: A first-step toward the development of potential hESC-based systems for modeling childhood leukemia. Leuk Res. 2008; 33(7):980-90. DOI: 10.1016/j.leukres.2008.08.028. View

5.
Menendez P, Wang L, Chadwick K, Li L, Bhatia M . Retroviral transduction of hematopoietic cells differentiated from human embryonic stem cell-derived CD45(neg)PFV hemogenic precursors. Mol Ther. 2004; 10(6):1109-20. DOI: 10.1016/j.ymthe.2004.08.016. View