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Proteomic Profiling of Primary Human Acute Myeloid Leukemia Cells Does Not Reflect Their Constitutive Release of Soluble Mediators

Authors :
Elise Aasebø
Maria Hernandez-Valladares
Frode Selheim
Frode S. Berven
Annette K. Brenner
Øystein Bruserud
Source :
Proteomes, Vol 7, Iss 1, p 1 (2018)
Publication Year :
2018
Publisher :
MDPI AG, 2018.

Abstract

Acute myeloid leukemia (AML) is a heterogeneous disease, and communication between leukemic cells and their neighboring leukemia-supporting normal cells is involved in leukemogenesis. The bone marrow cytokine network is therefore important, and the mediator release profile seems more important than single mediators. It is not known whether the characterization of primary AML cell proteomes reflects the heterogeneity of the broad and dynamic constitutive mediator release profile by these cells. To address this, we compared the intracellular levels of 41 proteins in 19 AML patients with the constitutive extracellular release during in vitro culture, including chemokines, growth factors, proteases, and protease regulators. The constitutive release of most mediators showed a wide variation (up to 2000-fold differences) between patients. Detectable intracellular levels were seen for 10 of 41 mediators, but for most of these 10 mediators we could not detect significant correlations between the constitutive release during in vitro culture and their intracellular levels. Intracellular protein levels in primary human AML cells do not reflect the dynamics, capacity, and variation between patients in constitutive mediator release profiles. Measurements of these profiles thus add complementary information to proteomic detection/quantification regarding the heterogeneity of the AML cell contributions to the bone marrow cytokine network.

Details

Language :
English
ISSN :
22277382
Volume :
7
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Proteomes
Publication Type :
Academic Journal
Accession number :
edsdoj.5a2d87f15c804a969e682036cb19d66f
Document Type :
article
Full Text :
https://doi.org/10.3390/proteomes7010001