Direct isolation and RNA-seq reveal environment-dependent properties of engrafted neural stem/progenitor cells

Hiromi Kumamaru, Yasuyuki Ohkawa, Hirokazu Saiwai, Hisakata Yamada, Kensuke Kubota, Kazu Kobayakawa, Koichi Akashi, Hideyuki Okano, Yukihide Iwamoto, Seiji Okada

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Neural stem/progenitor cell (NSPC) transplantation is a promising treatment for various neurodegenerative disorders including spinal cord injury, however, no direct analysis has ever been performed on their in vivo profile after transplantation. Here we combined bioimaging, flow-cytometric isolation and ultra-high-throughput RNA sequencing to evaluate the cellular properties of engrafted NSPCs. The acutely transplanted NSPCs had beneficial effects on spinal cord injury, particularly neuroprotection and neurohumoral secretion, whereas their in situ secretory activity differed significantly from that predicted in vitro. The RNA-sequencing of engrafted NSPCs revealed dynamic expression/splicing changes in various genes involved in cellular functions and tumour development depending on graft environments. Notably, in the pathological environment, overall transcriptional activity, external signal transduction and neural differentiation of engrafted NSPCs were significantly suppressed. These results highlight the vulnerability of engrafted NSPCs to environmental force, while emphasizing the importance of in situ analysis in advancing the efficacy and safety of stem cell-based therapies.

Original languageEnglish
Article number1140
JournalNature communications
Volume3
DOIs
Publication statusPublished - Nov 26 2012

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spinal cord injuries
transplantation
sequencing
Neural Stem Cells
stem cells
Stem cells
Spinal Cord Injuries
isolation
Stem Cells
RNA
RNA Sequence Analysis
High-Throughput Nucleotide Sequencing
splicing
Signal transduction
secretions
vulnerability
Stem Cell Transplantation
Cell- and Tissue-Based Therapy
Grafts
Neurodegenerative Diseases

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Direct isolation and RNA-seq reveal environment-dependent properties of engrafted neural stem/progenitor cells. / Kumamaru, Hiromi; Ohkawa, Yasuyuki; Saiwai, Hirokazu; Yamada, Hisakata; Kubota, Kensuke; Kobayakawa, Kazu; Akashi, Koichi; Okano, Hideyuki; Iwamoto, Yukihide; Okada, Seiji.

In: Nature communications, Vol. 3, 1140, 26.11.2012.

Research output: Contribution to journalArticle

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AU - Kubota, Kensuke

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