DOI

  • Natalia Yudintceva
  • Natalia Mikhailova
  • Danila Bobkov
  • Liudmila Yakovleva
  • Boris Nikolaev
  • Darya Krasavina
  • Alexandr Muraviov
  • Tatiana Vinogradova
  • Petr Yablonskiy
  • Igor Samusenko
  • Vyacheslav Ryzhov
  • Vladimir Deriglazov
  • Yaroslav Marchenko
  • Gabriele Multhoff
  • Alexander P. Klapproth
  • Wei Bo Li
  • Maxim Shevtsov

Bone-marrow derived mesenchymal stem cells (MSCs) exert anti-tuberculosis effects due to their potential to repair damaged tissues and modulate inflammatory immune responses. MSCs were reported to be recruited to the Mycobacterium tuberculosis (Mtb) affected sites in the organism. However, due to limitations of presently applied in vivo imaging techniques the trafficking and biodistribution of MSCs in Mtb-infected organisms is not possible. In the current study MSCs were labeled with superparamagnetic iron oxide nanoparticles (SPIONs) as a negative MR contrast agent for imaging the biodistribution of MSCs in vivo. Trafficking of SPIONs-labeled MSCs was analyzed in a preclinical model of renal tuberculosis in male Chinchilla rabbits (n = 18) following intravenous administration on the days 0, 2, 3, and 7 employing a highly sensitive method of non-linear longitudinal magnetic response (NLR-M2) measurements. Within 48 h after injection, nanoparticle-labeled MSCs accumulated predominantly in lung, spleen, liver tissues, and paratracheal lymph nodes with subsequent decrease over the observation period of 7 days. The recruitment of MSCs to Mtb-affected organs was further proven by immunohistological analysis. NLR-M2 allowed the detection of SPIONs-labeled cells at low concentrations in different organs and tissues giving insights of in vivo mesenchymal stem cells trafficking in organism after TB infection.

Original languageEnglish
Article number625622
Number of pages22
JournalFrontiers in Physics
Volume9
DOIs
StatePublished - 28 Apr 2021

    Research areas

  • biodistribution, mesenchymal stem cells, non-linear magnetic response, renal tuberculosis, SPIONs, superparamagnetic iron oxide nanoparticles, IRON-OXIDE NANOPARTICLES, INFUSION, TRANSPLANTATION, TRACT, CELLULAR-THERAPY, TRACKING, RABBIT, STROMAL CELLS

    Scopus subject areas

  • Physics and Astronomy(all)
  • Biophysics
  • Mathematical Physics
  • Physical and Theoretical Chemistry
  • Materials Science (miscellaneous)

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