PL EN


Preferences help
enabled [disable] Abstract
Number of results
Journal
1998 | 1 | 95-104
Article title

Modifications of animal tissues by way of genetic engeneering and their possible significance in xenotransplantation

Authors
Content
Title variants
Languages of publication
PL
Abstracts
EN
The paper presents the problems connected with the modification of animal tissues through transgenesis. Special attention has been given to the xenogenic heart transplant between pigs and human beings. The heart of pigs is a highly discordant graft both for primates and human, which is hyperacutely rejected already several minutes after operation. Graft rejection is mainly due to the presence of natural xenoreactive antibodies which recognize the pigs' tissue epitop Gala1-3Gal (known as the Gal antigene), as well as to the quick activation of the complement in the recipient. In 1995 transgenic pigs with human genes responsible for complement CD55 (DAF - decay accelerating factor) and CD59 factor (membrane inhibitor of reactive lysis) were obtained. Organs of such animals, grafted into baboons, were resistant to complement-related rejection. The possibilities of modifying animal tissues by way of genetic manipulation are still limited and total 'humanzation' of pigs heart as regards the histocompatibility antigens is not yet feasible. For this reason the fulfilment of the idea of xenografting between pigs and human beings is still remote.
Journal
Year
Issue
1
Pages
95-104
Physical description
References
Document Type
Publication order reference
G. Grzybowski, Instytut Genetyki i Hodowli Zwierzat PAN, Jastrzebiec, 05-551 Mrokow, Poland
YADDA identifier
bwmeta1.element.element-from-psjc-81e823c4-daa4-3fd3-8cf7-7fa7e8152ff2
Identifiers
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.