The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Human blastocysts for the development of embryonic stem cells

På svenska

Author

  • A Sjogren
  • T Hardarson
  • K Andersson
  • G Caisander
  • M Lundquist
  • M Wikland
  • Henrik Semb
  • L Hamberger

Summary, in English

Establishment of human embryonic stem cells (hES) from surplus human IVF embryos has been successful when both fresh and frozen-thawed cleavage stage embryos have been cultured to the blastocyst stage. This study reports the characteristics of the starting material, the blastocysts, for hES cell lines that were first derived at the University of Gothenburg, Sahlgrenska University Hospital in 1999. Twenty-two hES cell lines were derived by Cellartis AB from 114 blastocysts, giving an overall success rate of 19.3%. The blastocysts from which the hES cell lines were established were of varying morphological quality, both fresh and frozen-thawed. Two techniques of hES establishment were applied, i.e. direct application of the blastocysts on feeder cells or the standard immunosurgery method. It was further found that the efficiency by which frozen-thawed embryos gave rise to new hES cell lines was 3.7 times better than with fresh surplus embryos. These findings suggest that frozen-thawed embryos are superior to fresh surplus human embryos in hES cell establishment, which also avoids specific ethical problems associated with embryo donation in a fresh IVF cycle.

Department/s

Publishing year

2004

Language

English

Pages

326-329

Publication/Series

Reproductive BioMedicine Online

Volume

9

Issue

3

Document type

Journal article

Publisher

Reproductive Healthcare Ltd

Topic

  • Obstetrics, Gynecology and Reproductive Medicine

Keywords

  • human embryonic stem cells
  • embryo
  • freeze-thaw

Status

Published

ISBN/ISSN/Other

  • ISSN: 1472-6491