PMID- 33463310 OWN - NLM STAT- MEDLINE DCOM- 20210514 LR - 20230617 IS - 2373-9878 (Electronic) IS - 2373-9878 (Linking) VI - 6 IP - 7 DP - 2020 Jul 13 TI - Decellularized Tissue Matrix Enhances Self-Assembly of Islet Organoids from Pluripotent Stem Cell Differentiation. PG - 4155-4165 LID - 10.1021/acsbiomaterials.0c00088 [doi] AB - Regenerating human islet organoids from stem cells remains a significant challenge because of our limited knowledge on cues essential for developing the endocrine organoids in vitro. In this study, we discovered that a natural material prepared from a decellularized rat pancreatic extracellular matrix (dpECM) induces the self-assembly of human islet organoids during induced pluripotent stem cell (iPSC) pancreatic differentiation. For the first time, we demonstrated that the iPSC-derived islet organoids formed in the presence of the dpECM are capable of glucose-responsive secretion of both insulin and glucagon, two major hormones that maintain blood glucose homeostasis. The characterization of the organoids revealed that the organoids consisted of all major endocrine cell types, including alpha, beta, delta, and pancreatic polypeptide cells, that were assembled into a tissue architecture similar to that of human islets. The exposure of iPSCs to the dpECM during differentiation resulted in considerably elevated expression of key pancreatic transcription factors such as PDX-1, MAFA, and NKX6.1 and the production of all major hormones, including insulin, glucagon, somatostatin, and pancreatic polypeptide from stem cell-derived organoids. This study highlights the importance of natural, bioactive biomaterials for building microenvironments crucial to regenerating islet organoids from stem cells. FAU - Bi, Huanjing AU - Bi H AD - Department of Biomedical Engineering, Binghamton University, State University of New York (SUNY), Binghamton, New York 13902, United States. FAU - Karanth, Soujanya S AU - Karanth SS AD - Department of Biomedical Engineering, Binghamton University, State University of New York (SUNY), Binghamton, New York 13902, United States. FAU - Ye, Kaiming AU - Ye K AUID- ORCID: 0000-0001-7736-9875 AD - Department of Biomedical Engineering, Binghamton University, State University of New York (SUNY), Binghamton, New York 13902, United States. AD - Center of Biomanufacturing for Regenerative Medicine, Binghamton University, State University of New York (SUNY), Binghamton, New York 13902, United States. FAU - Stein, Roland AU - Stein R AD - Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee 37232, United States. FAU - Jin, Sha AU - Jin S AUID- ORCID: 0000-0002-8033-8110 AD - Department of Biomedical Engineering, Binghamton University, State University of New York (SUNY), Binghamton, New York 13902, United States. AD - Center of Biomanufacturing for Regenerative Medicine, Binghamton University, State University of New York (SUNY), Binghamton, New York 13902, United States. LA - eng GR - R15 EB027391/EB/NIBIB NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20200611 PL - United States TA - ACS Biomater Sci Eng JT - ACS biomaterials science & engineering JID - 101654670 RN - 0 (Insulin) SB - IM MH - Cell Differentiation MH - Insulin MH - *Islets of Langerhans MH - Organoids MH - *Pluripotent Stem Cells OTO - NOTNLM OT - detergent-free decellularization OT - glucagon OT - human induced pluripotent stem cells OT - insulin OT - islet organoids OT - pancreatic extracellular matrix EDAT- 2021/01/20 06:00 MHDA- 2021/05/15 06:00 CRDT- 2021/01/19 08:40 PHST- 2021/01/19 08:40 [entrez] PHST- 2021/01/20 06:00 [pubmed] PHST- 2021/05/15 06:00 [medline] AID - 10.1021/acsbiomaterials.0c00088 [doi] PST - ppublish SO - ACS Biomater Sci Eng. 2020 Jul 13;6(7):4155-4165. doi: 10.1021/acsbiomaterials.0c00088. Epub 2020 Jun 11.