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  1. Article ; Online: Pancreatic β-cell heterogeneity in adult human islets and stem cell-derived islets.

    Aldous, Noura / Moin, Abu Saleh Md / Abdelalim, Essam M

    Cellular and molecular life sciences : CMLS

    2023  Volume 80, Issue 6, Page(s) 176

    Abstract: Recent studies reported that pancreatic β-cells are heterogeneous in terms of their transcriptional profiles and their abilities for insulin secretion. Sub-populations of pancreatic β-cells have been identified based on the functionality and expression ... ...

    Abstract Recent studies reported that pancreatic β-cells are heterogeneous in terms of their transcriptional profiles and their abilities for insulin secretion. Sub-populations of pancreatic β-cells have been identified based on the functionality and expression of specific surface markers. Under diabetes condition, β-cell identity is altered leading to different β-cell sub-populations. Furthermore, cell-cell contact between β-cells and other endocrine cells within the islet play an important role in regulating insulin secretion. This highlights the significance of generating a cell product derived from stem cells containing β-cells along with other major islet cells for treating patients with diabetes, instead of transplanting a purified population of β-cells. Another key question is how close in terms of heterogeneity are the islet cells derived from stem cells? In this review, we summarize the heterogeneity in islet cells of the adult pancreas and those generated from stem cells. In addition, we highlight the significance of this heterogeneity in health and disease conditions and how this can be used to design a stem cell-derived product for diabetes cell therapy.
    MeSH term(s) Humans ; Adult ; Insulin/metabolism ; Islets of Langerhans/metabolism ; Insulin-Secreting Cells/metabolism ; Diabetes Mellitus/metabolism ; Stem Cells
    Chemical Substances Insulin
    Language English
    Publishing date 2023-06-03
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 1358415-7
    ISSN 1420-9071 ; 1420-682X
    ISSN (online) 1420-9071
    ISSN 1420-682X
    DOI 10.1007/s00018-023-04815-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: iPSC-Derived Pancreatic Progenitors Lacking FOXA2 Reveal Alterations in miRNA Expression Targeting Key Pancreatic Genes.

    Aldous, Noura / Elsayed, Ahmed K / Alajez, Nehad M / Abdelalim, Essam M

    Stem cell reviews and reports

    2023  Volume 19, Issue 4, Page(s) 1082–1097

    Abstract: Recently, we reported that forkhead box A2 (FOXA2) is required for the development of human pancreatic α- and β-cells. However, whether miRNAs play a role in regulating pancreatic genes during pancreatic development in the absence of FOXA2 expression is ... ...

    Abstract Recently, we reported that forkhead box A2 (FOXA2) is required for the development of human pancreatic α- and β-cells. However, whether miRNAs play a role in regulating pancreatic genes during pancreatic development in the absence of FOXA2 expression is largely unknown. Here, we aimed to capture the dysregulated miRNAs and to identify their pancreatic-specific gene targets in pancreatic progenitors (PPs) derived from wild-type induced pluripotent stem cells (WT-iPSCs) and from iPSCs lacking FOXA2 (FOXA2
    MeSH term(s) Induced Pluripotent Stem Cells/cytology ; Induced Pluripotent Stem Cells/metabolism ; Hepatocyte Nuclear Factor 3-beta/genetics ; Hepatocyte Nuclear Factor 3-beta/physiology ; MicroRNAs/genetics ; Humans ; Islets of Langerhans/cytology ; Islets of Langerhans/growth & development ; Islets of Langerhans/metabolism ; Cell Differentiation/genetics ; Cell Line ; Gene Expression Regulation, Developmental
    Chemical Substances FOXA2 protein, human ; Hepatocyte Nuclear Factor 3-beta (135845-92-0) ; MicroRNAs
    Language English
    Publishing date 2023-02-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2495577-2
    ISSN 2629-3277 ; 1558-6804 ; 1550-8943
    ISSN (online) 2629-3277 ; 1558-6804
    ISSN 1550-8943
    DOI 10.1007/s12015-023-10515-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Flavin Adenine Dinucleotide (FAD) and Pyridoxal 5'-Phosphate (PLP) Bind to Sox9 and Alter the Expression of Key Pancreatic Progenitor Transcription Factors.

    Islam, Zeyaul / Aldous, Noura / Choi, Sunkyu / Schmidt, Frank / Mifsud, Borbala / Abdelalim, Essam M / Kolatkar, Prasanna R

    International journal of molecular sciences

    2022  Volume 23, Issue 22

    Abstract: Cofactor flavin adenine dinucleotide (FAD), a compound with flavin moiety and a derivative of riboflavin (vitamin ... ...

    Abstract Cofactor flavin adenine dinucleotide (FAD), a compound with flavin moiety and a derivative of riboflavin (vitamin B
    MeSH term(s) Flavin-Adenine Dinucleotide/metabolism ; Pancreas/metabolism ; Pancreatic Hormones/metabolism ; Riboflavin/metabolism ; Pyridoxal Phosphate/metabolism ; Phosphates/metabolism ; Vitamins/metabolism
    Chemical Substances Flavin-Adenine Dinucleotide (146-14-5) ; Pancreatic Hormones ; Riboflavin (TLM2976OFR) ; Pyridoxal Phosphate (5V5IOJ8338) ; Phosphates ; Vitamins
    Language English
    Publishing date 2022-11-14
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms232214051
    Database MEDical Literature Analysis and Retrieval System OnLINE

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