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REVIEW ARTICLE

           Applications of 3D Bioprinted-Induced Pluripotent

           Stem Cells in Healthcare



           Soja Saghar Soman , Sanjairaj Vijayavenkataraman     1,2
                               1
           1 Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE
           2 Department of Mechanical and Aerospace Engineering, Tandon School of Engineering, New York University, NY, USA


           Abstract:  Induced pluripotent stem cell (iPSC) technology and advancements in three-dimensional (3D) bioprinting
           technology enable scientists to reprogram somatic cells to iPSCs and 3D print iPSC-derived organ constructs with native
           tissue architecture and function. iPSCs and iPSC-derived cells suspended in hydrogels (bioinks) allow to print tissues and
           organs for downstream medical applications. The bioprinted human tissues and organs are extremely valuable in regenerative
           medicine as bioprinting of autologous iPSC-derived organs eliminates the risk of immune rejection with organ transplants.
           Disease modeling and drug screening in bioprinted human tissues will give more precise information on disease mechanisms,
           drug efficacy, and drug toxicity than experimenting on animal models. Bioprinted iPSC-derived cancer tissues will aid in
           the study of early cancer development and precision oncology to discover patient-specific drugs. In this review, we present
           a brief summary of the combined use of two powerful technologies, iPSC technology, and 3D bioprinting in health-care
           applications.

           Keywords: Induced pluripotent stem cells, Three-dimensional bioprinting, Regenerative medicine, Disease modeling, Cancer
           iPSCs, Drug screening.

           *Corresponding Author: Sanjairaj Vijayavenkataraman, Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE; vs89@nyu.edu
           Received: March 05, 2020; Accepted: June 24, 2020; Published Online: July 30, 2020

           Citation: Soman SS,  Vijayavenkataraman  S, 2020,  Applications of 3D  Bioprinted Induced Pluripotent Stem Cells in
           Healthcare, Int J Bioprint, 6(4): 280. DOI: 10.18063/ijb.v6i4.280.


           1 Introduction                                      as the Yamanaka factors  or Oct4, Sox2, Lin28,
                                                                                      [1]
                                                               and  Nanog  (OSLN) .  Each  of  the  Yamanaka
                                                                                   [2]
           The advent of induced pluripotent stem cell (iPSC)   factor serve specific purposes, Sox2 interacts with
           technology in 2006 paved the way for paradigm       Oct3/4 to control gene expression. This interaction
           shifting changes in regenerative medicine, disease   is important in maintaining pluripotency . C‐Myc
                                                                                                     [3]
           modeling, and drug discovery applications.
           The  technology  facilitates  to  de-differentiate   plays an important role in controlling growth and
                                                                                   [4]
           an adult cell to its pluripotent  stem cell  state   differentiation of cells , whereas klf4 is crucial for
                                                                                                            [5]
           and  then  differentiate  into  defined  cell  lineages.   cell division and maintenance of pluripotency .
           iPSCs are phenotypically indistinguishable from     Later,  different  combinations  of  at  least  24
           embryonic  stem  cells  and  they  can  differentiate   embryonic transcription factors were identified to
                                                                                             [6]
           into specialized cells of the body in cell culture   induce  stemness in adult  cells . The Yamanaka
           and in animal models. Initially, human iPSCs were   factors  are  highly  conserved  and  sufficient  to
           derived  using transduction  of genes coding  for   induce pluripotency across species.
           four embryonic  transcriptional  regulators;  Oct4,   Reprogramming       of   somatic    cells   is
           Sox2, Klf4, and c-Myc (OSKM), popularly known       orchestrated  by cooperative  binding of pioneer


           © 2020 Soman, et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International
           License (http://creativecommons.org/licenses/by-nc/4.0/), permitting all non-commercial use, distribution, and reproduction in any medium, provided the
           original work is properly cited.
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