Mechano Growth Factor E peptide (MGF-E), derived from an isoform of IGF-1, activates human muscle progenitor cells and induces an increase in their fusion potential at different ages

2011 ◽  
Vol 132 (4) ◽  
pp. 154-162 ◽  
Author(s):  
Prashanth Kumar Kandalla ◽  
Geoffrey Goldspink ◽  
Gillian Butler-Browne ◽  
Vincent Mouly
Keyword(s):  
Growth Factor ◽  
Progenitor Cells ◽  
Human Muscle ◽  
Mechano Growth Factor ◽  
Different Ages ◽  
Muscle Progenitor Cells

scholarly journals Peptide YY (PYY) Is Expressed in Human Skeletal Muscle Tissue and Expanding Human Muscle Progenitor Cells

2019 ◽  
Vol 10 ◽  
Author(s):  
Brandon J. Gheller ◽  
Jamie E. Blum ◽  
Edward K. Merritt ◽  
Bethany P. Cummings ◽  
Anna E. Thalacker-Mercer
Keyword(s):  
Skeletal Muscle ◽  
Progenitor Cells ◽  
Muscle Tissue ◽  
Human Skeletal Muscle ◽  
Peptide Yy ◽  
Human Muscle ◽  
Skeletal Muscle Tissue ◽  
Muscle Progenitor Cells

Elevated Inflammatory Parameter Levels Negatively Impact Populations of Circulating Stem Cells (CD133+), Early Endothelial Progenitor Cells (CD133+/VEGFR2+), and Fibroblast Growth Factor in Stroke Patients

2019 ◽  
Vol 16 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Monika Golab-Janowska ◽  
Edyta Paczkowska ◽  
Boguslaw Machalinski ◽  
Dariusz Kotlega ◽  
Agnieszka Meller ◽  
...  
Keyword(s):  
Risk Factors ◽  
Stem Cells ◽  
Growth Factor ◽  
Progenitor Cells ◽  
Endothelial Progenitor Cells ◽  
Plasma Levels ◽  
Fibroblast Growth ◽  
Vascular Risk ◽  
Endothelial Progenitor ◽  
Inflammatory Parameters

Background: Endothelial Progenitor Cells (EPCs) are important players in neovascularization, mobilized through signalling by Angiogenic Growth Factors (AGFs) such as Vascular Endothelial Growth Factor (VEGF) and fibroblast growth factor (FGF). In vitro, inflammatory parameters impair the function and influence of EPCs on AGFs. However, this connection is not clear in vivo. To understand the mechanisms of augmented arteriogenesis and angiogenesis in acute ischemic stroke (AIS) patients, we investigated whether circulating stem cells (CD133+), early endothelial progenitor cells (CD133+/VEGFR2+), and endothelial cells (ECs; CD34¯/CD133¯/VEGFR2+) were increasingly mobilized during AIS, and whether there were correlations between EPC levels, growth factor levels and inflammatory parameters. Methods: Data on demographics, classical vascular risk factors, neurological deficit information (assessed using the National Institutes of Health Stroke Scale), and treatment were collected from 43 consecutive AIS patients (group I). Risk factor control patients (group II) included 22 nonstroke subjects matched by age, gender, and traditional vascular risk factors. EPCs were measured by flow cytometry and the populations of circulating stem cells (CD133+), early EPCs (CD133+/VEGFR2+), and ECs (CD34¯/CD133¯/VEGFR2+) were analysed. Correlations between EPC levels and VEGF and FGF vascular growth factor levels as well as the influence of inflammatory parameters on EPCs and AGFs were assessed. Results: Patient ages ranged from 54 to 92 years (mean age 75.2 ± 11.3 years). The number of circulating CD34¯/CD133¯/VEGF-R2+ cells was significantly higher in AIS patients than in control patients (p < 0.05). VEGF plasma levels were also significantly higher in AIS patients compared to control patients on day 7 (p < 0.05). FGF plasma levels in patients with AIS were significantly higher than those in the control group on day 3 (p < 0.05). There were no correlations between increased VEGF and FGF levels and the number of CD133+, CD133+/VEGFR2+, or CD34¯/CD133¯/VEGFR2+ cells. Leukocyte levels, FGF plasma levels, and the number of early EPCs were negatively correlated on day 3. High sensitivity C-reactive protein levels and the number of CD133+ and CD133+/VEGFR2+ cells were negatively correlated on day 7. In addition, there was a negative correlation between fibrinogen levels and FGF plasma levels as well as the number of early EPCs (CD133+/VEGFR2+). Conclusion: AIS patients exhibited increased numbers of early EPCs (CD133+/VEGFR2+) and AGF (VEGF and FGF) levels. A negative correlation between inflammatory parameters and AGFs and EPCs indicated the unfavourable influence of inflammatory factors on EPC differentiation and survival. Moreover, these correlations represented an important mechanism linking inflammation to vascular disease.

scholarly journals Smooth Muscle Progenitor Cells: Friend or Foe in Vascular Disease?

2009 ◽  
Vol 4 (2) ◽  
pp. 131-140 ◽  
Author(s):  
Olivia Oostrom ◽  
Joost Fledderus ◽  
Dominique de Kleijn ◽  
Gerard Pasterkamp ◽  
Marianne Verhaar
Keyword(s):  
Smooth Muscle ◽  
Vascular Disease ◽  
Progenitor Cells ◽  
Muscle Progenitor Cells
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