Evaluation of Human Stem Cell Conditioned Medium and Culture Conditions on Alleviating Elastase-Compromised Human Aortic Smooth Muscle Cell Function.
Baldwin CS., Gustavison N., Almodovar J., Iyer S., Rao RR.
Laboratory Study, published in Cardiovasc Eng Technol (2026) — summary generated from the PubMed abstract.
Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.
- Level A · Stronger Clinical Evidence
- Level B · Emerging clinical evidence with positive signals
- Level C · Early human research exploring benefits
- Level D · Scientific groundwork from lab and animal studies
- Emerging · Emerging topic under active research
This page is generated from the PubMed record. The Thai description is an automated summary of bibliographic fields and the abstract, not a full translation, and is not medical advice.
- Study type
- Laboratory Study
- Journal
- Cardiovasc Eng Technol (2026)
- Country
- United States
- Reported sample size
- —
- Source database
- PubMed
- PMID
- 42552507
- DOI
- 10.1007/s13239-026-00853-x
Abstract (original English)
Cardiovascular health depends critically on the integrity of the vascular extracellular matrix (ECM) and the behavior of vascular smooth muscle cells (VSMCs), both of which can be adversely affected in vascular diseases. This study quantitatively evaluates the therapeutic potential of conditioned medium (CM) derived from bone marrow (BM-MSCs) and adipose-derived stem cells (ADSCs) in an elastase-injured human aortic smooth muscle cell (HASMC) model. We systematically varied seeding densities (2000, 5000, and 10,000 cells/cm 2 ) and serum conditions to optimize the SC-SMC secretome for vascular repair. Our results indicate that neither BM-SMC nor AD-SMC CM significantly enhanced lysyl oxidase (LOX) activity. In fact, serum-supplemented BM-SMC CM significantly suppressed LOX activity at seeding densities of 2000 cells/cm 2 (p = 0.0378) and 10,000 cells/cm 2 (p = 0.0080) compared to injured untreated controls. High-density AD-SMC CM (10,000 cells/cm 2 ) also resulted in a significant decrease in elastin levels (p < 0.05). In addition, serum presence was critical for maintaining the reparative phenotype. Serum-free (SF) conditions for both cell sources led to widespread, statistically significant reductions (p < 0.0001) in key repair and inflammatory biomarkers, including PDGF-AA, Leptin, Lipocalin-2, Osteopontin, RBP4, MMP-1, and IL-6. IL-11 emerged as a primary discriminatory bio
What this study does not prove
- • This study does not prove SVF is an approved treatment or a replacement for standard care.
- • This is preclinical work; animal or laboratory results cannot be applied to humans.
Evidence level
Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.
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