Hypoxic conditions promote a proliferative, poorly differentiated phenotype in COPD lung tissue progenitor cells in vitro.

Purpose: Chronic obstructive pulmonary disease (COPD) patients experience hypoxemia and lung tissue hypoxia, causing vasoconstriction, and at its most severe Cor pulmonale. However, minimal attention has been given to the effects of hypoxia at the cellular level. We hypothesize that a persistent progenitor cell population undergoes an aberrant differentiation process, influenced by changes in oxygen.

Amnion-Derived Teno-Inductive Secretomes: A Novel Approach to Foster Tendon Differentiation and Regeneration in an Ovine Model.

Regenerative medicine has greatly progressed, but tendon regeneration mechanisms and robust tendon differentiation protocols remain to be elucidated. Recently, tendon explant co-culture (CO) has been proposed as an model to recapitulate the microenvironment driving tendon development and regeneration. Here, we explored standardized protocols for production and storage of bioactive tendon-derived secretomes with an evaluation of their teno-inductive effects on ovine amniotic epithelial cells (AECs).