Selective expansion of CD34+ cells from mouse bone marrow cultured on LH/P MP-coated plates with adequate cytokines

Satoko Kishimoto, Masayuki Ishihara, Yasuhiro Kanatani, Masaki Nambu, Megumi Takikawa, Yuki Sumi, Shingo Nakamura, Yasutaka Mori, Hidemi Hattori, Yoshihiro Tanaka, Toshinori Sato

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Low-molecular-weight heparin/protamine microparticles (LH/P MPs) serve as carriers for controlled release of heparin-binding cytokines. LH/P MPs were stably coated onto plastic surfaces by drying. The purpose of this study is to evaluate a culture method for selective expansion of CD34+ cells using LH/P MPs as cytokine-binding matrix. Ficoll-purified mouse bone marrow cells (mouse FP-BMCs) containing CD34+ cells were cultured on LH/P MP-coated plates in the presence of stem cell factor (SCF), thrombopoietin (Tpo), and Flt-3 ligand (Flt-3) in hematopoietic progenitor growth medium (HPGM) supplemented with 4% heat-inactivated fetal bovine serum (FBS). After 8 days of culture, the total cell count increased 4.6-fold, and flow cytometry analyses revealed that 23.8% of the initial cells and 57.4% of the expanded cells were CD34 positive. Therefore, CD34+ cells were estimated to have increased 11.0-fold. In contrast, cultured CD34+ cells on uncoated tissue culture plates increased 5.8-fold in an identical medium.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalJournal of Tissue Engineering
Volume2
Issue number1
DOIs
Publication statusPublished - 2011 Dec 1

Keywords

  • CD34-positive hematopoietic cells (CD34 cells)
  • Cell proliferation
  • Cytokines

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Biomaterials
  • Biomedical Engineering

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