Identification of rat respiratory mucosa stem cells and comparison of the early neural differentiation potential with the bone marrow mesenchymal stem cells in vitro

Cell Mol Neurobiol. 2014 Mar;34(2):257-68. doi: 10.1007/s10571-013-0009-6. Epub 2013 Nov 30.

Abstract

The aim of this study is to identify rat nasal septum respiratory mucosa-derived mesenchyme stem cells (RM-MSCs) and to compare its neural lineage differentiation capacity with bone marrow-derived mesenchyme stem cells (BM-MSCs) after a short period of neural induction culture in vitro. The cell morphology was observed with light microscopy; cell proliferation was assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT). The characteristics of the cells were evaluated with flow cytometry, immunofluorescence, real-time quantitative PCR (RT-PCR), and Western blotting. The results showed that rat nasal respiratory mucosa contains RM-MSCs that exhibited similar proliferation rate as BM-MSCs in vitro. Both RT-PCR and Western blotting analyses demonstrated that RM-MSCs showed higher expression of neural lineage markers than BM-MSCs after a short period of neural induction culture, and secreted higher level of brain-derived neurotrophic factor. RM-MSCs were more amenable to differentiate into neural or glial cell after a short period of neural induction culture than BM-MSCs in vitro; and it could be considered as another optimal source of stem cells for cell-based therapy to neurological diseases.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Biomarkers / metabolism
  • Blotting, Western
  • Bone Marrow Cells / cytology*
  • Bone Marrow Cells / metabolism
  • Cell Differentiation* / genetics
  • Cell Proliferation
  • Cell Shape / genetics
  • Gene Expression Regulation
  • Male
  • Mesenchymal Stem Cells / cytology*
  • Mesenchymal Stem Cells / metabolism
  • Neurons / cytology*
  • Neurons / metabolism
  • Nucleic Acid Denaturation / genetics
  • RNA, Messenger / genetics
  • RNA, Messenger / metabolism
  • Rats
  • Rats, Sprague-Dawley
  • Respiratory Mucosa / cytology*

Substances

  • Biomarkers
  • RNA, Messenger