Three-dimensional microengineered vascularised endometrium-on-a-chip.

Area of Science:

• Biomedical Engineering
• Reproductive Biology
• Organ-on-a-Chip Technology

Background:

• Organ-on-a-chip systems offer a 3D microfluidic approach to study organ physiology.
• Existing models often lack the complexity of the native endometrial microenvironment.
• A physiologically relevant in-vitro model is needed to study endometrial function and disease.

Purpose of the Study:

• To develop and validate a 3D microengineered vascularized endometrium-on-a-chip model.
• To recapitulate the key features of the human endometrial microenvironment in vitro.
• To assess the model's utility for drug screening and studying reproductive health conditions.

Main Methods:

• A multi-channel microfluidic device was engineered with parallel microchannels.
• Endometrial epithelial cells, stromal fibroblasts, and endothelial cells were co-cultured in a 3D extracellular matrix.
• Hormonal responses and drug effects (levonorgestrel) were assessed morphologically and biochemically.

Main Results:

• The microengineered endometrium-on-a-chip successfully recapitulated the three distinct endometrial layers and in-vivo vasculo-angiogenesis.
• The model demonstrated physiological responses to hormones, mimicking proliferative and secretory phases.
• Levonorgestrel's effects on endometrial permeability and blood vessel regression were observed in a dose-dependent manner.

Conclusions:

• The developed endometrium-on-a-chip model provides a robust platform for in-vitro endometrial research.
• This model can be utilized for drug screening, personalized medicine, and understanding female diseases like endometriosis and infertility.
• Further validation with primary human endometrial cells is recommended.