Key result
Under hypoxia, ATP production was significantly higher in PAH-PASMCs (31 ± 5 pmol/min) compared to non-PAH-PASMCs (14 ± 3 pmol/min), indicating a metabolic shift.
Why the study?
The metabolic state of pulmonary artery smooth muscle cells (PASMCs) from patients with pulmonary arterial hypertension (PAH) is not well understood.
Population
Non-PAH-PASMCs and PAH-PASMCs
Comparison
PAH-PASMCs vs non-PAH-PASMCs under normoxia and hypoxia
Design
In vitro laboratory study
Authors
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Does not yet inform PAH management; leaves open metabolic targeting as a research direction in hypoxic vascular disease.
Absolute Event Rate: 31% vs 14%
PAH-PASMCs exhibit a distinct shift in metabolic strategy to generate ATP under hypoxic conditions compared to non-PAH cells.
Akagi et al. (2023) studied Pulmonary arterial hypertension. Hypoxia vs. Normoxia was evaluated on ATP production under hypoxia. Under hypoxia, ATP production was significantly higher in PAH-PASMCs (31 ± 5 pmol/min) compared to non-PAH-PASMCs (14 ± 3 pmol/min), indicating a metabolic shift.
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