Först har vi forskare från PHI,s användare i Italien och deras rapport som kom ut i fredags 26/5.
A biophysical approach to quantify skeletal stem cells trans-differentiation as a model for the study of osteoporosis
L. Petecchia, F. Viti, F. Sbrana, M. Vassalli, P. GavazzoInstitute of Biophysics, National Research Council, Via De Marini 6, 16149 Genova, Italy
Received 12 April 2017, Revised 9 May 2017, Accepted 22 May 2017, Available online 26 May 2017
Det är alltså forskare från The Biophysics Institute (IBF), Genoa som man kan läsa om här.
Rapporten berör benskörhet och hur forskning med stamceller från benmärg kan påverka synen på hur benskörhet uppstår och därigenom ge svar på hur bota,reparera detta tillstånd.
Abstract
The stroma of human bone marrow contains a population of
skeletal stem cells (hBM-MSC) which are common ancestors, among the
others, of osteoblasts and adipocytes. It has been proposed that the
imbalance between hBM-MSC osteogenesis and adipogenesis, which naturally
accompanies bone marrow senescence, may contribute to the development
of bone-associated diseases, like osteoporosis.
The possibility to
reproduce this mechanism in vitro has been demonstrated,
providing a good model to disclose the details of the complex bone-fat
generation homeostasis.
Nevertheless, the lack of a simple approach to
quantitatively assess the actual stage of a cellular population hindered
the adoption of this in vitro model.
In this
work, the direct differentiation of hBM-MSCs towards a single (osteo or
adipo) lineage was characterized using quantitative biophysical and
biological approaches, together with the parallel process of
trans-differentiation from one lineage to the other.
The results confirm
that the original plasticity of hBM-MSCs is maintained along the
initial stages of the differentiation, showing that in vitro conversion of pre-osteoblasts into adipocytes and, vice versa,
of pre-adipocytes into osteoblasts is extremely efficient, comparable
with the direct differentiation.
Moreover, a method based on digital
holography is proposed, providing a quantitative indication of the
phenotype stage along differentiation.
In the present study, image acquisition has been performed through HoloMonitor M3(Phase Holographic Imaging PHI AB Sweden).
Denna text framkommer vid sökning på själva rapporten.
Nästa rapport lägger jag i ett eget inlägg då den är av speciellt intresse.
Inga kommentarer:
Skicka en kommentar