| Title: |
Flow Cytometry-based Method for Efficient Sorting of Senescent Cells |
| Authors: |
Goy, Erwan; Martin, Nathalie; Drullion, Claire; Saas, Laure; Molendi-Coste, Olivier; Pineau, Laurent; Dombrowicz, David; Deruy, Emeric; Bauderlique-Leroy, Hélène; Samyn, Olivier; de Launoit, Yvan; Abbadie, Corinne |
| Contributors: |
Hétérogénéité, Plasticité et Résistance aux Thérapies des Cancers = Cancer Heterogeneity, Plasticity and Resistance to Therapies - UMR 9020 - U 1277 (CANTHER); Institut Pasteur de Lille; Pasteur Network (Réseau International des Instituts Pasteur)-Pasteur Network (Réseau International des Instituts Pasteur)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire CHU Lille (CHRU Lille)-Centre National de la Recherche Scientifique (CNRS); Centre Hospitalier Régional Universitaire CHU Lille (CHRU Lille); Récepteurs Nucléaires, Maladies Métaboliques et Cardiovasculaires - U 1011 (RNMCD); Pasteur Network (Réseau International des Instituts Pasteur)-Pasteur Network (Réseau International des Instituts Pasteur)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire CHU Lille (CHRU Lille); Institut Européen de Génomique du Diabète - European Genomic Institute for Diabetes - FR 3508 (EGID); Pasteur Network (Réseau International des Instituts Pasteur)-Pasteur Network (Réseau International des Instituts Pasteur)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre National de la Recherche Scientifique (CNRS); Plateformes Lilloises en Biologie et Santé - UAR 2014 - US 41 (PLBS) |
| Source: |
ISSN: 2331-8325 ; Bio-protocol ; https://hal.science/hal-04774160 ; Bio-protocol , 2023, 13 (7), pp.e4612. ⟨10.21769/BioProtoc.4612⟩. |
| Publisher Information: |
CCSD; Bio-protocol LCC |
| Publication Year: |
2023 |
| Collection: |
LillOA (HAL Lille Open Archive, Université de Lille) |
| Subject Terms: |
Senescence; Flow cytometry; Sorting; FSC; SSC; SA-β-Gal; C12FDG; Nozzle; [SDV]Life Sciences [q-bio] |
| Description: |
International audience ; Cellular senescence is a reprogrammed cell state triggered as an adaptative response to a variety of stresses, most often those affecting the genome integrity. Senescent cells accumulate in most tissues with age and contribute to the development of several pathologies. Studying molecular pathways involved in senescence induction and maintenance, or in senescence escape, can be hindered by the heterogeneity of senescent cell populations. Here, we describe a flow cytometry strategy for sorting senescent cells according to three senescence canonical markers whose thresholds can be independently adapted to be more or less stringent: (i) the senescence-associated-βgalactosidase (SA-β-Gal) activity, detected using 5-dodecanoylaminofluorescein Di-β-D-galactopyranoside (C12FDG), a fluorigenic substrate of β-galactosidase; (ii) cell size, proportional to the forward scatter value, since increased size is one of the major changes observed in senescent cells; and (iii) cell granularity, proportional to the side scatter value, which reflects the accumulation of aggregates, lysosomes, and altered mitochondria in senescent cells. We applied this protocol to the sorting of normal human fibroblasts at the replicative senescence plateau. We highlighted the challenge of sorting these senescent cells because of their large sizes, and established that it requires using sorters equipped with a nozzle of an unusually large diameter: at least 200 µm. We present evidence of the sorting efficiency and sorted cell viability, as well as of the senescent nature of the sorted cells, confirmed by the detection of other senescence markers, including the expression of the CKI p21 and the presence of 53BP1 DNA damage foci. Our protocol makes it possible, for the first time, to sort senescent cells from contaminating proliferating cells and, at the same time, to sort subpopulations of senescent cells featuring senescent markers to different extents. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/pmid/37056241; PUBMED: 37056241; PUBMEDCENTRAL: PMC10087096 |
| DOI: |
10.21769/BioProtoc.4612 |
| Availability: |
https://hal.science/hal-04774160; https://hal.science/hal-04774160v1/document; https://hal.science/hal-04774160v1/file/Goy%20et%20al%20BioProtoc%202023.pdf; https://doi.org/10.21769/BioProtoc.4612 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.6E2AB159 |
| Database: |
BASE |