title: Inhibitory Effect of Mesenchymal Stem Cell Co-Culture on Erythroid Differentiation of K562 Cells Compared to The Control Group.
abstract: OBJECTIVE
  Bone marrow mesenchymal stem cells (BMMSCs) reside in the bone marrow and control the process of hematopoiesis. They are an excellent instrument for regenerative treatment and co-culture with hematopoietic stem cells (HSCs).
  
  
  METHODS
  In this experimental study, K562 cell lines were either treated with butyric acid and co-cultured with MSCs, or cultivated in a conditioned medium from MSCs plus butyric acid for erythroid differentiation. We used the trypan blue dye exclusion assay to determine cell counts and viability in each group. For each group, we separately assessed erythroid differentiation of the K562 cell line with Giemsa stain under light microscopy, expression of specific markers of erythroid cells by flowcytometry, and erythroidspecific gene expressions by real-time polymerase chain reaction (RT-PCR).
  
  
  RESULTS
  There was enhandced erythroid differentiation of K562 cells with butyric acid compared to the K562 cell line co-cultured with MSCs and butyric acid. Erythroid differentiation of the K562 cell line cultivated in conditioned medium with butyric acid was higher than the K562 cell line co-cultured with MSCs and butyric acid, but less than K562 cell line treated with butyric acid only.
  
  
  CONCLUSIONS
  Our results showed that MSCs significantly suppressed erythropoiesis. Therefore, MSCs would not be a suitable optimal treatment strategy for patients with erythroid leukemia.
authors.affiliation: Hematology Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Mahshid
authors.initials: M
authors.lastname: Saleh
authors.affiliation: Hematology Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Karim
authors.initials: K
authors.lastname: Shamsasanjan
authors.affiliation: Hematology Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Ali Akbari
authors.initials: AA
authors.lastname: Movassaghpour
authors.affiliation: Department of Pharmacutical Biotechnology, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Parvin
authors.initials: P
authors.lastname: Akbarzadehlaleh
authors.affiliation: Hematology Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Zahra
authors.initials: Z
authors.lastname: Molaeipour
keywords: Erythroid Differentiation; K562 Cells; Mesenchymal Stem Cells