Metabolic changes in focal brain ischemia in rats treated with human induced pluripotent stem cell-derived neural precursors confirm the beneficial effect of transplanted cells

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F19%3A00078561" target="_blank" >RIV/00023001:_____/19:00078561 - isvavai.cz</a>

Alternative codes found

RIV/68378041:_____/19:00518835 RIV/46747885:24530/19:00006800 RIV/00216208:11110/19:10399988 RIV/00216208:11130/19:10399988

Result on the web

<a href="https://www.frontiersin.org/articles/10.3389/fneur.2019.01074/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fneur.2019.01074/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fneur.2019.01074" target="_blank" >10.3389/fneur.2019.01074</a>

Result language

angličtina

Original language name

Metabolic changes in focal brain ischemia in rats treated with human induced pluripotent stem cell-derived neural precursors confirm the beneficial effect of transplanted cells

Original language description

There is currently no treatment for restoring lost neurological function after stroke. A growing number of studies have highlighted the potential of stem cells. However, the mechanisms underlying their beneficial effect have yet to be explored in sufficient detail. In this study, we transplanted human induced pluripotent stem cell-derived neural precursors (iPSC-NPs) in rat temporary middle cerebral artery occlusion (MCAO) model. Using magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS) we monitored the effect of cells and assessed lesion volume and metabolite changes in the brain. We monitored concentration changes of myo-inositol (Ins), Taurine (Tau), Glycerophosphocholine+Phosphocholine (GPC+PCh), N-acetyl-aspartate+N-acetyl-aspartyl-glutamate (NAA+NAAG), Creatine+Phosphocreatine (Cr+PCr), and Glutamate+Glutamine (Glu+Gln) in the brains of control and iPSC-NP-transplanted rats. Based on initial lesion size, animals were divided into small lesion and big lesion groups. In the small lesion control group (SCL), lesion size after 4 months was three times smaller than initial measurements. In the small lesion iPSC-NP-treated group, lesion volume decreased after 1 month and then increased after 4 months. Although animals with small lesions significantly improved their motor skills after iPSC-NP transplantation, animals with big lesions showed no improvement. However, our MRI data demonstrate that in the big lesion iPSC-NP-treated (BTL) group, lesion size increased only up until 1 month after MCAO induction and then decreased. In contrast, in the big lesion control group, lesion size increased throughout the whole experiment. Significantly higher concentrations of Ins, Tau, GPC+PCh, NAA+NAAG, Cr+PCr, and Glu+Gln were found in in contralateral hemisphere in BTL animals 4 months after cell injection. Lesion volume decreased at this time point. Spectroscopic results of metabolite concentrations in lesion correlated with volumetric measurements of lesion, with the highest negative correlation observed for NAA+NAAG. Altogether, our results suggest that iPSC-NP transplantation decreases lesion volume and regulates metabolite concentrations within the normal range expected in healthy tissue. Further research into the ability of iPSC-NPs to differentiate into tissue-specific neurons and its effect on the long-term restoration of lesioned tissue is necessary.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30103 - Neurosciences (including psychophysiology)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Frontiers in neurology

ISSN

1664-2295

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

October

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

"art. no. 1074"

UT code for WoS article

000494463100001

EID of the result in the Scopus database

2-s2.0-85074468980