Background: The transplantation of porcine islet cells provides a new potential therapy to treat patients with type 1 diabetes mellitus (T1DM). Compared to other biomedical technologies, xenotransplantation stands out in terms of its involvement of animals as graft sources, as well as the possible transmission of infectious diseases. As these aspects are especially relevant for potential xenotransplantation recipients, it is important to assess their opinion regarding this technology, in particular in terms of the requirements that should be met in the informed consent process for xenotransplantation.

Methods: We conducted qualitative interviews with seven T1DM patients to assess their information needs prior to xenotransplantation. Before the interview, the participants received a model informed consent form for a clinical trial with porcine islet cells transplantation. The interviews were transcribed and analysed using qualitative content analysis.

Results: In the interviews, we identified several requirements that are crucial for patients with T1DM in order to consider xenotransplantation as a potential treatment option: therapy-related requirements, professional care and supervision, successful behaviour and attitude management, improving quality of life, and managing control/self-determination challenges. Regarding the informed consent form, several of the participants' questions remained open and should be addressed in more detail. The interviewees stressed the importance of personal consultations.

Conclusions: To become a sustainable therapeutic option, patients especially expected an improved diabetes control and a reduction of diabetes-related burdens. Health-related aspects prove to be pivotal for diabetic patients when considering porcine islet cell transplantation. The use of pigs as source for organ retrievals was not considered as problematic.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8015214PMC
http://dx.doi.org/10.1186/s12910-021-00607-5DOI Listing

Publication Analysis

Top Keywords

porcine islet
12
informed consent
12
islet cell
8
type diabetes
8
islet cells
8
consent form
8
patients
6
consent
4
consent islet
4
cell xenotransplantation?
4

Similar Publications

Enhanced Insulin Production From Porcine Islets: More Insulin, Less Islets.

Transpl Int

January 2025

Pôle de Chirurgie Expérimentale et Transplantation, Université Catholique de Louvain, Brussels, Belgium.

Clinical pancreatic islet xenotransplantation will most probably rely on genetically modified pigs as donors. Several lines of transgenic pigs carrying one and more often, multiple modifications already exist. The vast majority of these modifications aim to mitigate the host immune response by suppressing major xeno-antigens, or expressing immunomodulatory molecules that act locally at the graft site.

View Article and Find Full Text PDF

Xenotransplantation of porcine organs has made remarkable progress towards clinical application. A key factor has been the generation of genetically multi-modified source pigs for xenotransplants, protected against immune rejection and coagulation dysregulation. While efficient gene editing tools and multi-cistronic expression cassettes facilitate sophisticated and complex genetic modifications with multiple gene knockouts and protective transgenes, an increasing number of independently segregating genetic units complicates the breeding of the source pigs.

View Article and Find Full Text PDF

Background: Intraportal pancreatic islet transplantation is a treatment option for patients with severe beta cell failure and unstable glycemic control. However, this procedure is associated with loss of beta cells after intrahepatic transplantation. Islet delivery devices (IDDs) implanted at extrahepatic sites may support engraftment and improve survival of pancreatic islets.

View Article and Find Full Text PDF

In this study using a discordant, xenogeneic, transplant model we demonstrate the functionality and safety of the first stent-based bioartificial pancreas (BAP) device implanted endovascularly into an artery, harnessing the high oxygen content in blood to support islet viability. The device is a self-expanding nitinol stent that is coated with a bilayer of polytetrafluoroethylene that forms channels to hold islets embedded in a hydrogel. We completed a 1-month study in the nondiabetic swine model (N = 3) to test the safety of the device and to assess islet functionality after device recovery.

View Article and Find Full Text PDF
Article Synopsis
  • * It explores the compatibility of porcine islets with human glucose metabolism, their potential as a reliable source of beta cells, and the immunological challenges faced in xenotransplantation.
  • * The discussion includes regulatory and ethical considerations surrounding the use of pig islets, emphasizing the importance of ongoing research and dialogue to address obstacles and promote their integration into T1D therapies.*
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!