Nuclear organization during in vitro differentiation of porcine mesenchymal stem cells (MSCs) into adipocytes.
Differentiation of progenitor cells into adipocytes is accompanied by remarkable changes in cell morphology, cytoskeletal organization, and gene expression profile. Mature adipocytes are filled with a large lipid droplet and the nucleus tends to move to the cell periphery. It was hypothesized that t...
| Publicado en: | Histochemistry & Cell Biology Vol. 149; no. 2; pp. 113 - 127 |
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| Autores principales: | , , , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Feb2018
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=127707466&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 127707466 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09486143 NQI jtl: Histochemistry & Cell Biology issn: 09486143 maglogo: N pubinfo: dt: Feb2018 vid: 149 iid: 2 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 127707466 144082069 10.1007/s00418-017-1618-9 127707466 ppf: 113 ppct: 14 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Nuclear organization during in vitro differentiation of porcine mesenchymal stem cells (MSCs) into adipocytes. aug: au: Stachecka, Joanna Walczak, Agnieszka Kociucka, Beata Ruszczycki, Błażej Wilczyński, Grzegorz Szczerbal, Izabela affil: Department of Genetics and Animal Breeding, Poznan University of Life Sciences, Wolynska 33, 60-637, Poznan, Poland sug: ab: Differentiation of progenitor cells into adipocytes is accompanied by remarkable changes in cell morphology, cytoskeletal organization, and gene expression profile. Mature adipocytes are filled with a large lipid droplet and the nucleus tends to move to the cell periphery. It was hypothesized that the differentiation process is also associated with changes of nuclear organization. The aim of this study was to determine the number and distribution of selected components of nuclear architecture during porcine in vitro adipogenesis. The pig is an important animal model sharing many similarities to humans at the anatomical, physiological, and genetic levels and has been recognized as a good model for human obesity. Thus, understanding how cellular structures important for fundamental nuclear processes may be altered during adipocyte differentiation is of great importance. Mesenchymal stem cells (MSCs) were derived from bone marrow (BM-MSCs) and adipose tissue (AD-MSCs) and were cultured for 7 days in the adipogenic medium. A variable differentiation potential of these cell populations towards adipogenic lineage was observed, and for further study, a comparative characteristic of the nuclear organization in BM-MSCs and AD-MSCs was performed. Nuclear substructures were visualized by indirect immunofluorescence (nucleoli, nuclear speckles, PML bodies, lamins, and HP1α) or fluorescence in situ hybridization (telomeres) on fixed cells at 0, 3, 5, and 7 days of differentiation. Comprehensive characterization of these structures, in terms of their number, size, dynamics, and arrangement in three-dimensional space of the nucleus, was performed. It was found that during differentiation of porcine MSCs into adipocytes, changes of nuclear organization occurred and concerned: (1) the nuclear size and shape; (2) reduced lamin A/C expression; and (3) reorganization of chromocenters. Other elements of nuclear architecture such as nucleoli, SC-35 nuclear speckles, and telomeres showed no significant changes when compared to undifferentiated and mature fat cells. In addition, the presence of a low number of PML bodies was characteristic of the studied porcine mesenchymal stem cell adipogenesis system. It has been shown that the arrangement of selected components of nuclear architecture was very similar in MSCs derived from different sources, whereas adipocyte differentiation involves nuclear reorganization. This study adds new data on nuclear organization during adipogenesis using the pig as a model organism. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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