Evidence map›Paper›PMID 35927427›Full record

Articlenpj aging2022

Paracrine-mediated rejuvenation of aged mesenchymal stem cells is associated with downregulation of the autophagy-lysosomal pathway.

George Hung, Tamara Ashvetiya, Aleksandra Leszczynska, Wanjun Yang, Chao-Wei Hwang, Gary Gerstenblith, Andreas S Barth, Peter V Johnston

Open access · hybridAbstract read
In one paragraph

Article in npj aging, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 22% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 9 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

George HungDepartment of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Tamara AshvetiyaDepartment of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Aleksandra LeszczynskaDepartment of Pediatrics, University of California San Diego School of Medicine, San Diego, CA, USA.ORCID http://orcid.org/0000-0002-8005-2657
Wanjun YangDepartment of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Chao-Wei HwangDepartment of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Gary GerstenblithDepartment of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Andreas S BarthDepartment of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Peter V JohnstonDepartment of Medicine, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA. pjohnst1@jhmi.edu.ORCID http://orcid.org/0000-0002-4258-6981
Johns Hopkins University · USUniversity of California San Diego · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Age-related differences in stem-cell potency contribute to variable outcomes in clinical stem cell trials. To help understand the effect of age on stem cell potency, bone marrow-derived mesenchymal stem cells (MSCs) were isolated from young (6 weeks) and old (18-24 months) mice. HUVEC tubule formation (TF) induced by the old and young MSCs and ELISA of conditioned media were compared to one another, and to old MSCs after 7 d in indirect co-culture with young MSCs. Old MSCs induced less TF than did young (1.56 ± 0.11 vs 2.38 ± 0.17, p = 0.0003) and released lower amounts of VEGF (p = 0.009) and IGF1 (p = 0.037). After 7 d in co-culture with young MSCs, TF by the old MSCs significantly improved (to 2.09 ± 0.18 from 1.56 ± 0.11; p = 0.013), and was no longer different compared to TF from young MSCs (2.09 ± 0.18 vs 2.38 ± 0.17; p = 0.27). RNA seq of old MSCs, young MSCs, and old MSCs following co-culture with young MSCs revealed that the age-related differences were broadly modified by co-culture, with the most significant changes associated with lysosomal pathways. These results indicate that the age-associated decreased paracrine-mediated effects of old MSCs are improved following indirect co-culture with young MSC. The observed effect is associated with broad transcriptional modification, suggesting potential targets to both assess and improve the therapeutic potency of stem cells from older patients.

Identifiers

PMID35927427
PMCPMC9293998
OpenAlexW4285730878

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.