PMID- 35269382 OWN - NLM STAT- MEDLINE DCOM- 20220411 LR - 20220411 IS - 2073-4409 (Electronic) IS - 2073-4409 (Linking) VI - 11 IP - 5 DP - 2022 Feb 22 TI - Cerebral Organoids Maintain the Expression of Neural Stem Cell-Associated Glycoepitopes and Extracellular Matrix. LID - 10.3390/cells11050760 [doi] LID - 760 AB - During development, the nervous system with its highly specialized cell types forms from a pool of relatively uniform stem cells. This orchestrated process requires tight regulation. The extracellular matrix (ECM) is a complex network rich in signaling molecules, and therefore, of interest in this context. Distinct carbohydrate structures, bound to ECM molecules like Tenascin C (TNC), are associated with neural stem/progenitor cells. We have analyzed the expression patterns of the LewisX (LeX) trisaccharide motif and of the sulfation-dependent DSD-1 chondroitin sulfate glycosaminoglycan epitope in human cerebral organoids, a 3D model for early central nervous system (CNS) development, immunohistochemically. In early organoids we observed distinct expression patterns of the glycoepitopes, associated with rosette-like structures that resemble the neural tube in vitro: Terminal LeX motifs, recognized by the monoclonal antibody (mAb) 487(LeX), were enriched in the lumen and at the outer border of neural rosettes. In contrast, internal LeX motif repeats detected with mAb 5750(LeX) were concentrated near the lumen. The DSD-1 epitope, labeled with mAb 473HD, was detectable at rosette borders and in adjacent cells. The epitope expression was maintained in older organoids but appeared more diffuse. The differential glycoepitope expression suggests a specific function in the developing human CNS. FAU - Roll, Lars AU - Roll L AD - Department of Cell Morphology and Molecular Neurobiology, Ruhr University Bochum, 44780 Bochum, Germany. FAU - Lessmann, Katrin AU - Lessmann K AD - Department of Cell Morphology and Molecular Neurobiology, Ruhr University Bochum, 44780 Bochum, Germany. FAU - Brustle, Oliver AU - Brustle O AD - Institute of Reconstructive Neurobiology, Medical Faculty & University Hospital Bonn, University of Bonn, 53127 Bonn, Germany. FAU - Faissner, Andreas AU - Faissner A AUID- ORCID: 0000-0002-2211-8259 AD - Department of Cell Morphology and Molecular Neurobiology, Ruhr University Bochum, 44780 Bochum, Germany. LA - eng GR - Fa 159/23-1/Deutsche Forschungsgemeinschaft/ PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220222 PL - Switzerland TA - Cells JT - Cells JID - 101600052 RN - 0 (Antibodies, Monoclonal) RN - 0 (Epitopes) RN - 0 (Tenascin) SB - IM MH - Aged MH - Antibodies, Monoclonal/metabolism MH - Epitopes MH - Extracellular Matrix/metabolism MH - Humans MH - *Neural Stem Cells/metabolism MH - *Organoids/metabolism MH - Tenascin/metabolism PMC - PMC8909158 OTO - NOTNLM OT - DSD-1 epitope OT - LewisX epitope OT - PTPRZ1 OT - Tenascin C OT - cerebral organoid OT - chondroitin sulfate OT - extracellular matrix OT - glycoepitope OT - neural stem cell OT - radial glia COIS- The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. EDAT- 2022/03/11 06:00 MHDA- 2022/04/12 06:00 PMCR- 2022/02/22 CRDT- 2022/03/10 15:34 PHST- 2021/12/23 00:00 [received] PHST- 2022/02/10 00:00 [revised] PHST- 2022/02/14 00:00 [accepted] PHST- 2022/03/10 15:34 [entrez] PHST- 2022/03/11 06:00 [pubmed] PHST- 2022/04/12 06:00 [medline] PHST- 2022/02/22 00:00 [pmc-release] AID - cells11050760 [pii] AID - cells-11-00760 [pii] AID - 10.3390/cells11050760 [doi] PST - epublish SO - Cells. 2022 Feb 22;11(5):760. doi: 10.3390/cells11050760.