Tin tức và sự kiện

Tạo tế bào gan từ tế bào da

Cập nhật lúc: 2:34:27 CH - 27/08/2010

Các nhà khoa học tại ĐH Cambridge (Anh) lần đầu tiên tạo ra tế bào gan trong phòng thí nghiệm bằng cách sử dụng tế bào da người. Công trình này được công bố trên tạp chí Journal of Clinical Investigation

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Theo hãng tin Reuters, các nhà khoa học đã lấy mẫu tế bào da của 7 bệnh nhân đau gan và 3 người bình thường. Họ biến tế bào da thành một dạng tế bào gốc được đặt tên là tế bào gốc đa hiệu lực và từ đó tạo ra tế bào gan.
 
Quá trình này được thực hiện ở cả người bệnh và người lành để đối chiếu. Ý nghĩa quan trọng của công trình này là tạo ra tế bào gan mà không cần sử dụng phôi người – vốn là vấn đề gây tranh cãi về đạo đức và ảnh hưởng đến chính trị tại Mỹ. 
 
Giáo sư Tamir Rashid, thuộc phòng thí nghiệm y học tái tạo của ĐH Cambridge, nói: “Công nghệ này bỏ qua nhu cầu sử dụng tế bào phôi người. Tế bào chúng tôi tạo ra vẫn tốt như tế bào chế tạo từ phôi người”. Việc sử dụng tế bào phôi người gây tranh cãi vì phải diệt một mầm sống con người trong giai đoạn vài ngày tuổi.
 
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