字幕列表 影片播放 列印英文字幕 Tissue engineering (also called “Regenerative Medicine”) refers to the attempt to create functional human tissue from cells in a laboratory. Its ultimate goal is to be a cure, not merely treatment – by repairing or replacing tissues and organs that fail due to disease, genetic errors, congenital abnormalities, or traumatic injury. Tissue engineering relies on four important factors: the right cells to do the job, the right environment, such as a scaffold, to support the cells, the right biomolecules, like growth factors, to make those cells healthy and productive, and physical and mechanical forces to influence the development of the cells. The cells can be directly harvested from the target organ, developed from precursor—or stem—cells, or taken from lines grown in the lab all, ideally, from the patient, as that limits problems with rejection. The supporting structures can be derived from donor tissue from natural or synthetic polymers made to order for their strength or endurance. Biomolecules can be added directly, or coaxed from the cells that take up residence on the scaffold. Sometimes the scaffolds dissolve over time, but others remain to provide support to the organ. Some examples of tissues and organs that have already been successfully tissue engineered and implanted in humans include bladders, small arteries, skin grafts, cartilage and even a full trachea.
B2 中高級 什麼是組織工程? (What is Tissue Engineering?) 79 7 Study English 發佈於 2021 年 01 月 14 日 更多分享 分享 收藏 回報 影片單字