Page 13 - IJB-6-3
P. 13

Kirillova, et al.
           problems [24,25] .  The “cell”  is the most important   religious beliefs may disagree with the use of cells
           component of bioprinting. The type of cells used    of certain animal species.
           plays a key role in determining the characteristics   The emerging  possibilities of reprogramming
           of the bioprinted tissue. In the case of allogeneic   differentiated  cells  and  producing induced
           cell  transplantation,  we face  classical  ethical   pluripotent stem cells (iPSCs) eliminate the ethical
           problems associated with donation: (1) The donor    issues of using ESCs or xenogeneic cells. IPSCs can
           confidentiality, (2) the informed donor consent, (3)   be purposefully differentiated into any specific adult
           the possible invasive cell production procedure,    body cell types, ranging from skin cells to cardiac
           and  (4)  donor cell  ownership.  There  is still  no   cells and neurons. However, we believe that the
           verdict among clinicians and researchers regarding   technology of 3D printing of human organs using
           one of the basic rules of medical ethics – Primum   autologous iPSC in bioink is not ethically neutral.
           non nocere (First, do no harm). The principle of    It also has a number of problematic aspects, even
           misuse takes into account  the moral  nature of     if the bioinks are derived from the patient’s own
           the action, the intention of the agent, the means   cells.  The technology of cell reprogramming is
           of action, the possible adverse effects, and the    also very far from perfect. Today, one of the main
           proportionality between good and bad effects.       challenges is to develop the methods that will
             Stem cells are often used as “building blocks”    ensure correct differentiation of all stem cells before
           for human tissue and organ biofabrication.  The     transplantation. The risk of tumorigenicity is a major
           main ethical issue with regard to stem cells is its   problem when using iPSC [31-33] . To provide safety of
           “source.” The use of human embryonic stem cells     iPSC-based therapies, genetic testing of stem cell
           (ESCs) has been heavily criticized and has relevant   lines potentially suitable for clinical application has
           limitations, both legal [26,27]  and moral [28,29] . The main   to be performed [34-36] . However, it brings additional
           source of these cells are embryos or fetuses, so the   ethical and legal issues related to the personal
           problem of obtaining ESC is at the intersection of   genetic information collection, storage, and use.
           bioethical problems of determining the moral status   Data exchange for research purposes increases
           of an embryo, legal pregnancy termination, and      the  number  of individuals  who can  access
           human participation in the experiments. In addition   personal genomic data which, in turn, increases
           to the ethical and legal issues associated with the   the  likelihood of data  leakage  and its malicious
           use of ESCs, other factors may influence the ethical   use, including for the purpose of committing  a
           acceptability of using bioinks from allogeneic cells.   crime. In 2012, The Presidential Commission for
           For instance, the issues of obtaining stem cells    the Study of Bioethical Issues published “Privacy
           from donors who have been pressured, coerced, or    and Progress in  Whole  Genome  sequencing”
           have not given informed consent should be taken     report in the United States .  This report gives
                                                                                         [37]
           into consideration. Moreover, there are barriers for   recommendations  for   individual’s  privacy
           commercialization and therefore, the application of   protection  while  allowing exchanging  genetic
           3D printing technology on the basis of ESC as “use   data. The Russian legislation does not regulate the
           of human embryos in industrial and commercial       organization and conducts of research related to
           purposes cannot be the objects for patent rights”   human genome data and activities of the relevant
           according to the subclause 3 of Clause 4 of Article   genetic  companies. Requirements for obtaining
           1349 of the Civil Code of the Russian Federation.   consent from a donor for participation in research,
             Another  option  for  the cell  source  for       as  well  as  requirements  for  the  processing  and
           bioprinting is xenogeneic cells. In this case, it is   transfer of genetic information as a special category
           necessary to take into consideration the social     of  personal  data,  are  not  defined  in  the  existing
           and religious aspects of animal cell utilization.   legislation. Additionally, current legislation does
           Patients   with    xenotransplantation    might     not regulate the circulation of biological materials
           experience psychosocial problems associated with    seized from donors for the purpose of conducting
           their personal identity . Moreover, patients with   scientific research, does not provide guarantees of
                                [30]
                                       International Journal of Bioprinting (2020)–Volume 6, Issue 3         9
   8   9   10   11   12   13   14   15   16   17   18