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Artificial tissues in perfusion culture

M Sittinger¹, O Schultz, G Keyszer

¹Department of Medicine III, Charité, Humboldt University of Berlin, Germany.

The International Journal of Artificial Organs

|January 1, 1997

Summary

A novel perfusion culture system enables long-term tissue engineering experiments by providing a stable nutrient supply. This reliable system is ideal for generating artificial connective tissues from human cells.

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Area of Science:

Biotechnology
Tissue Engineering
Cell Culture Technology

Background:

Traditional cell culture dishes limit long-term experiments and artificial tissue generation.
A continuous nutrient supply is crucial for advanced cell culture applications.

Purpose of the Study:

To develop and evaluate a perfusion culture system for long-term human cell culture.
To assess the system's reliability for generating artificial tissues, specifically connective tissue.

Main Methods:

Human chondrocytes were cultured in 3D resorbable polymer fleeces.
Cell-polymer constructs were placed in specialized containers and perfused with fresh medium for 40 days.
Effluent was analyzed daily for pH, glucose, and lactic acid levels.

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Main Results:

The perfusion system maintained stable pH and glucose levels over 40 days.
Lactic acid concentration increased due to polymer fiber degradation, indicating metabolic activity and material breakdown.
The system demonstrated reliability for long-term monitoring without manual medium replacement disturbances.

Conclusions:

The developed perfusion culture system is a reliable tool for long-term cell culture and tissue engineering.
It facilitates the generation of artificial connective tissues by ensuring stable nutrient delivery and enabling continuous monitoring.
This technology offers a convenient solution for various tissue engineering applications.