Abstract
Aims: Following acute myocardial infarction (AMI), pro-angiogenic progenitor cells (PCs) are released from the bone marrow into the circulation and home to the ischaemic site attracted by a chemokine gradient. It is unknown if components of this early homeostatic response might help forecast the long-term clinical outcome. This study investigates if the number and migratory activity of circulating PCs predict adverse events in patients with AMI (clinical trial: NCT01271309). Methods and results: Basal counts and in vitro migratory activity of CD34/CD45/CD133/CXCR4 PCs and serum cytokine levels were assessed during the first 5 days after AMI in a consecutive series of 172 patients. Clinical outcomes of the study were death, repeat AMI, and new-onset heart failure at a 1-year follow-up. The association between PC counts and cytokine levels with the incidence of clinical outcomes was assessed by multivariable regression models. AMI patients who underwent an event showed higher serum stromal cell-derived factor 1α (SDF-1α) levels and reduced spontaneous motility of PCs in an in vitro migration assay when compared with event-free subjects. After adjustment for age, gender, the presence or absence of ST elevation, or diabetes, the percentage of PCs non-migrated towards vehicle or SDF-1α were both independent predictors of death or repeat AMI and new-onset heart failure (odds ratio [OR] = 2, P = 0.015 and OR = 1.90, P = 0.018, respectively). Moreover, serum SDF-1α levels predict adverse events (OR = 3.8, P = 0.007). Conclusion: Biomarkers reflecting the migratory activity of circulating PCs may aid the assessment of secondary risk in AMI patients.
| Original language | English |
|---|---|
| Pages (from-to) | 192-200 |
| Number of pages | 9 |
| Journal | Cardiovascular Research |
| Volume | 100 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Nov 1 2013 |
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Keywords
- Acute myocardial infarction
- Circulating progenitor cells
- Migration
- SDF-1α
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Physiology (medical)
- Physiology
Cite this
Migratory activity of circulating progenitor cells and serum SDF-1α predict adverse events in patients with myocardial infarction. / Fortunato, Orazio; Spinetti, Gaia; Specchia, Claudia; Cangiano, Elisa; Valgimigli, Marco; Madeddu, Paolo.
In: Cardiovascular Research, Vol. 100, No. 2, 01.11.2013, p. 192-200.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Migratory activity of circulating progenitor cells and serum SDF-1α predict adverse events in patients with myocardial infarction
AU - Fortunato, Orazio
AU - Spinetti, Gaia
AU - Specchia, Claudia
AU - Cangiano, Elisa
AU - Valgimigli, Marco
AU - Madeddu, Paolo
PY - 2013/11/1
Y1 - 2013/11/1
N2 - Aims: Following acute myocardial infarction (AMI), pro-angiogenic progenitor cells (PCs) are released from the bone marrow into the circulation and home to the ischaemic site attracted by a chemokine gradient. It is unknown if components of this early homeostatic response might help forecast the long-term clinical outcome. This study investigates if the number and migratory activity of circulating PCs predict adverse events in patients with AMI (clinical trial: NCT01271309). Methods and results: Basal counts and in vitro migratory activity of CD34/CD45/CD133/CXCR4 PCs and serum cytokine levels were assessed during the first 5 days after AMI in a consecutive series of 172 patients. Clinical outcomes of the study were death, repeat AMI, and new-onset heart failure at a 1-year follow-up. The association between PC counts and cytokine levels with the incidence of clinical outcomes was assessed by multivariable regression models. AMI patients who underwent an event showed higher serum stromal cell-derived factor 1α (SDF-1α) levels and reduced spontaneous motility of PCs in an in vitro migration assay when compared with event-free subjects. After adjustment for age, gender, the presence or absence of ST elevation, or diabetes, the percentage of PCs non-migrated towards vehicle or SDF-1α were both independent predictors of death or repeat AMI and new-onset heart failure (odds ratio [OR] = 2, P = 0.015 and OR = 1.90, P = 0.018, respectively). Moreover, serum SDF-1α levels predict adverse events (OR = 3.8, P = 0.007). Conclusion: Biomarkers reflecting the migratory activity of circulating PCs may aid the assessment of secondary risk in AMI patients.
AB - Aims: Following acute myocardial infarction (AMI), pro-angiogenic progenitor cells (PCs) are released from the bone marrow into the circulation and home to the ischaemic site attracted by a chemokine gradient. It is unknown if components of this early homeostatic response might help forecast the long-term clinical outcome. This study investigates if the number and migratory activity of circulating PCs predict adverse events in patients with AMI (clinical trial: NCT01271309). Methods and results: Basal counts and in vitro migratory activity of CD34/CD45/CD133/CXCR4 PCs and serum cytokine levels were assessed during the first 5 days after AMI in a consecutive series of 172 patients. Clinical outcomes of the study were death, repeat AMI, and new-onset heart failure at a 1-year follow-up. The association between PC counts and cytokine levels with the incidence of clinical outcomes was assessed by multivariable regression models. AMI patients who underwent an event showed higher serum stromal cell-derived factor 1α (SDF-1α) levels and reduced spontaneous motility of PCs in an in vitro migration assay when compared with event-free subjects. After adjustment for age, gender, the presence or absence of ST elevation, or diabetes, the percentage of PCs non-migrated towards vehicle or SDF-1α were both independent predictors of death or repeat AMI and new-onset heart failure (odds ratio [OR] = 2, P = 0.015 and OR = 1.90, P = 0.018, respectively). Moreover, serum SDF-1α levels predict adverse events (OR = 3.8, P = 0.007). Conclusion: Biomarkers reflecting the migratory activity of circulating PCs may aid the assessment of secondary risk in AMI patients.
KW - Acute myocardial infarction
KW - Circulating progenitor cells
KW - Migration
KW - SDF-1α
UR - http://www.scopus.com/inward/record.url?scp=84886070256&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84886070256&partnerID=8YFLogxK
U2 - 10.1093/cvr/cvt153
DO - 10.1093/cvr/cvt153
M3 - Article
C2 - 23761401
AN - SCOPUS:84886070256
VL - 100
SP - 192
EP - 200
JO - Cardiovascular Research
JF - Cardiovascular Research
SN - 0008-6363
IS - 2
ER -