Evidence map›Paper›PMID 40879259›Full record

ArticleMicroscopy research and technique2025

Illuminating Satellite Cells: Light Sheet Fluorescence Microscopy for 3D Imaging of Murine Skeletal Muscles Damaged by Ex Vivo Forced Eccentric Contraction.

Rachele Garella, Elisa Imbimbo, Francesco Palmieri, Alessia Tani, Martina Parigi, Flaminia Chellini, Alessandra La Contana, Monica Mattioli Belmonte, Aurora Longhin, Ludovico Silvestri and 2 more

Abstract readLetter
In one paragraph

Article in Microscopy research and technique, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Review
  2. Article
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

12 authors.

Rachele GarellaDepartment of Experimental and Clinical Medicine (DMSC), Section of Physiological Sciences, University of Florence, Florence, Italy.
Elisa ImbimboEuropean Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Sesto Fiorentino, Italy.
Francesco PalmieriDepartment of Experimental and Clinical Medicine (DMSC), Section of Physiological Sciences, University of Florence, Florence, Italy.
Alessia TaniDepartment of Experimental and Clinical Medicine (DMSC), Section of Anatomy and Histology, Imaging Platform, University of Florence, Florence, Italy.
Martina ParigiDepartment of Experimental and Clinical Medicine (DMSC), Section of Anatomy and Histology, Imaging Platform, University of Florence, Florence, Italy.
Flaminia ChelliniDepartment of Experimental and Clinical Medicine (DMSC), Section of Anatomy and Histology, Imaging Platform, University of Florence, Florence, Italy.
Alessandra La ContanaDepartment of Clinical and Molecular Sciences (DISCLIMO), Marche Polytechnic University, Ancona, Italy.
Monica Mattioli BelmonteDepartment of Clinical and Molecular Sciences (DISCLIMO), Marche Polytechnic University, Ancona, Italy.ORCID https://orcid.org/0000-0002-2087-2776
Aurora LonghinDepartment of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy.
Ludovico SilvestriEuropean Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Sesto Fiorentino, Italy.ORCID https://orcid.org/0000-0001-9215-9104
Chiara SassoliDepartment of Experimental and Clinical Medicine (DMSC), Section of Anatomy and Histology, Imaging Platform, University of Florence, Florence, Italy.ORCID https://orcid.org/0000-0002-1337-0938
Roberta SqueccoDepartment of Experimental and Clinical Medicine (DMSC), Section of Physiological Sciences, University of Florence, Florence, Italy.

Funding

European Commission 871124Italian Ministry of University and Research (MUR) 20222P2NAJ-CUP-B53D23011080006-I53D23003030006-J53D23006120006Ministry of Foreign Affairs and International Cooperation PGR02066MUR, National Recovery and Resilience Plan (NRRP) CUP B53C22001750006MUR, National Recovery and Resilience Plan (NRRP) ID D2B8D520MUR, National Recovery and Resilience Plan (NRRP) IR0000016MUR, National Recovery and Resilience Plan (NRRP) PE0000006#NEXTGENERATIONEU (NGEU)
6 · The paper itself

Abstract

In this letter, we put forward the light sheet fluorescence microscopy (LSFM) as a cutting-edge tool for 3D imaging of whole skeletal muscle, focusing on satellite cells (SCs). SCs represent the resident adult muscle stem cells, normally lying quiescent between the sarcolemma of the myofiber and the surrounding basal lamina. They typically express Pax-7 and, when activated following damage, they sequentially express specific myogenic regulatory factors including the myogenic determination factor, MyoD, thus starting differentiation towards multinucleated myofibers to repair injured tissue. The present analysis was performed on an ex vivo model of murine skeletal muscle injured by a forced eccentric contraction in isometric condition. The entire muscles were subjected to a tissue clearing and whole-mount staining process, enabling optical access and specific labeling across the entire intact sample. We performed labeling either with a fluorescent analog of standard hematoxylin and eosin, or with specific immunostaining against Pax-7 and MyoD. This proof of concept study demonstrates the feasibility of whole-muscle imaging with LSFM for the evaluation of the spatial arrangement of resting and activated SCs, overcoming the methodological limits of conventional 2D histology. This innovative experimental pipeline can be useful to test novel therapeutic approaches aimed at enhancing tissue regeneration and other biomedical/clinical applications.

Indexed as

Imaging, Three-DimensionalMuscle, SkeletalSatellite Cells, Skeletal MuscleAnimalsMiceMicroscopy, FluorescenceMyoD ProteinPAX7 Transcription FactorMyoD ProteinPAX7 Transcription Factor3D histologylight sheet fluorescence microscopymuscle repair/regenerationsatellite cellstissue clearing

Identifiers

PMID40879259
PMCPMC12584295

What Socratic holds

Textmetadata
LicenceCC BY
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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 Socratic graph.