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.

Язык оригиналаанглийский
Номер статьи625622
Число страниц22
ЖурналFrontiers in Physics
Том9
DOI
СостояниеОпубликовано - 28 апр 2021

    Предметные области Scopus

  • Физика и астрономия (все)
  • Биофизика
  • Математическая физика
  • Физическая и теоретическая химия
  • Материаловедение (разное)

ID: 87736499