Abstract
N-glycans carrying the Lewis X trisaccharide [Galβ1-4 (Fucα1-3) GlcNAc] are expressed by neural stem cells (NSCs) exclusively before differentiation, and they actively contribute to the maintenance of stemness of these cells. To address the functional roles of the Lewis X-mediated molecular interactions in NSCs, we created a series of synthetic neoglycolipids that contained a Lewis X-carrying glycan connected to an acyl chain through an amide bond. The neoglycolipids formed aqueous micelles displaying functional Lewis X glycotopes. Surprisingly, the neoglycolipid micelles evoked selective apoptosis in undifferentiated NSCs, whereas their differentiated cells remained unaffected. The apoptotic activity depended on the structural integrity of the Lewis X glycotopes and also on the length of the acyl chain, with an optimum length of C18. We propose hypothetical functional mechanisms of the neoglycolipid, which involves selective NSC targeting with Lewis X glycan and apoptotic signaling by the intracellular release of fatty acids. This serendipitous finding may offer a new strategy for controlling neural cell fates using artificial glycoclusters.
Similar content being viewed by others
References
Temple S (1989) Division and differentiation of isolated CNS blast cells in microculture. Nature 340(6233):471–473. doi:https://doi.org/10.1038/340471a0
McKay R (1997) Stem cells in the central nervous system. Science (New York) 276(5309):66–71. doi:https://doi.org/10.1126/science.276.5309.66
Gage FH (2000) Mammalian neural stem cells. Science (New York) 287(5457):1433–1438. doi:https://doi.org/10.1126/science.287.5457.1433
Doetsch F, Caille I, Lim DA, Garcia-Verdugo JM, Alvarez-Buylla A (1999) Subventricular zone astrocytes are neural stem cells in the adult mammalian brain. Cell 97(6):703–716. doi:https://doi.org/10.1016/S0092-8674(00)80783-7
Seri B, Garcia-Verdugo JM, McEwen BS, Alvarez-Buylla A (2001) Astrocytes give rise to new neurons in the adult mammalian hippocampus. J Neurosci 21(18):7153–7160
Temple S, Alvarez-Buylla A (1999) Stem cells in the adult mammalian central nervous system. Curr Opin Neurobiol 9(1):135–141. doi:https://doi.org/10.1038/cr.2009.56
Kojima N, Fenderson BA, Stroud MR, Goldberg RI, Habermann R, Toyokuni T, Hakomori S (1994) Further studies on cell adhesion based on Le(x)-Le(x) interaction, with new approaches: embryoglycan aggregation of F9 teratocarcinoma cells, and adhesion of various tumour cells based on Le(x) expression. Glycoconj J 11(3):238–248
Kleene R, Schachner M (2004) Glycans and neural cell interactions. Nat Rev Neurosci 5(3):195–208. doi:https://doi.org/10.1038/nrn1349
Hashimoto H, Ishino Y, Jiang W, Yoshimura T, Takeda-Uchimura Y, Uchimura K, Kadomatsu K, Ikenaka K (2016) Keratan sulfate regulates the switch from motor neuron to oligodendrocyte generation during development of the mouse spinal cord. Neurochem Res 41(1–2):450–462. doi:https://doi.org/10.1007/s11064-016-1861-9
Yagi H, Kato K (2016) Functional roles of glycoconjugates in the maintenance of stemness and differentiation process of neural stem cells. Glycoconj J. doi:https://doi.org/10.1007/s10719-016-9707-x
Yagi H, Yanagisawa M, Suzuki Y, Nakatani Y, Ariga T, Kato K, Yu RK (2010) HNK-1 epitope-carrying tenascin-C spliced variant regulates the proliferation of mouse embryonic neural stem cells. J Biol Chem 285(48):37293–37301. doi:https://doi.org/10.1074/jbc.M110.157081
Yagi H, Saito T, Yanagisawa M, Yu RK, Kato K (2012) Lewis X-carrying N-glycans regulate the proliferation of mouse embryonic neural stem cells via the Notch signaling pathway. J Biol Chem 287(29):24356–24364. doi:https://doi.org/10.1074/jbc.M112.365643
Hennen E, Safina D, Haussmann U, Worsdorfer P, Edenhofer F, Poetsch A, Faissner A (2013) A LewisX glycoprotein screen identifies the low density lipoprotein receptor-related protein 1 (LRP1) as a modulator of oligodendrogenesis in mice. J Biol Chem 288(23):16538–16545. doi:https://doi.org/10.1074/jbc.M112.419812
Yagi H, Yanagisawa M, Kato K, Yu RK (2010) Lysosome-associated membrane protein 1 is a major SSEA-1-carrier protein in mouse neural stem cells. Glycobiology 20(8):976–981. doi:https://doi.org/10.1093/glycob/cwq054
Eggens I, Fenderson B, Toyokuni T, Dean B, Stroud M, Hakomori S (1989) Specific interaction between Lex and Lex determinants. A possible basis for cell recognition in preimplantation embryos and in embryonal carcinoma cells. J Biol Chem 264(16):9476–9484
Kunze A, Bally M, Hook F, Larson G (2013) Equilibrium-fluctuation-analysis of single liposome binding events reveals how cholesterol and Ca2+ modulate glycosphingolipid trans-interactions. Sci Rep 3:1452. doi:https://doi.org/10.1038/srep01452
Yan G, Yamaguchi T, Suzuki T, Yanaka S, Sato S, Fujita M, Kato K (2017) Hyper-assembly of self-assembled glycoclusters mediated by specific carbohydrate-carbohydrate interactions. Chem Asian J 12(9):968–972. doi:https://doi.org/10.1002/asia.201700202
Hernaiz MJ, de la Fuente JM, Barrientos AG, Penades S (2002) A model system mimicking glycosphingolipid clusters to quantify carbohydrate self-interactions by surface plasmon resonance. Angew Chem Int Ed Engl 41(9):1554–1557. doi:https://doi.org/10.1002/1521-3773(20020503)
Coombs PJ, Graham SA, Drickamer K, Taylor ME (2005) Selective binding of the scavenger receptor C-type lectin to Lewisx trisaccharide and related glycan ligands. J Biol Chem 280(24):22993–22999. doi:https://doi.org/10.1074/jbc.M504197200
Yu YH, Narayanan G, Sankaran S, Ramasamy S, Chan SY, Lin S, Chen J, Yang H, Srivats H, Ahmed S (2016) Purification, visualization, and molecular signature of neural stem cells. Stem Cells Dev 25(2):189–201. doi:https://doi.org/10.1089/scd.2015.0190
Fuki IV, Iozzo RV, Williams KJ (2000) Perlecan heparan sulfate proteoglycan: a novel receptor that mediates a distinct pathway for ligand catabolism. J Biol Chem 275(33):25742–25750. doi:https://doi.org/10.1074/jbc.M909173199
Kerever A, Mercier F, Nonaka R, de Vega S, Oda Y, Zalc B, Okada Y, Hattori N, Yamada Y, Arikawa-Hirasawa E (2014) Perlecan is required for FGF-2 signaling in the neural stem cell niche. Stem Cell Res 12(2):492–505. doi:https://doi.org/10.1016/j.scr.2013.12.009
Mishra R, Simonson MS (2005) Saturated free fatty acids and apoptosis in microvascular mesangial cells: palmitate activates pro-apoptotic signaling involving caspase 9 and mitochondrial release of endonuclease G. Cardiovasc Diabetol 4:2. doi:https://doi.org/10.1186/1475-2840-4-2
Listenberger LL, Ory DS, Schaffer JE (2001) Palmitate-induced apoptosis can occur through a ceramide-independent pathway. J Biol Chem 276(18):14890–14895. doi:https://doi.org/10.1074/jbc.M010286200
Martins de Lima T, Cury-Boaventura MF, Giannocco G, Nunes MT, Curi R (2006) Comparative toxicity of fatty acids on a macrophage cell line (J774). Clin Sci (Lond) 111(5):307–317. doi:https://doi.org/10.1042/CS20060064
Andrade LN, de Lima TM, Curi R, Castrucci AM (2005) Toxicity of fatty acids on murine and human melanoma cell lines. Toxicol In Vitro 19(4):553–560. doi:https://doi.org/10.1016/j.tiv.2005.02.002
Lima TM, Kanunfre CC, Pompeia C, Verlengia R, Curi R (2002) Ranking the toxicity of fatty acids on Jurkat and Raji cells by flow cytometric analysis. Toxicol In Vitro 16(6):741–747. doi:https://doi.org/10.1016/S0887-2333(02)00095-4
Artwohl M, Lindenmair A, Roden M, Waldhausl WK, Freudenthaler A, Klosner G, Ilhan A, Luger A, Baumgartner-Parzer SM (2009) Fatty acids induce apoptosis in human smooth muscle cells depending on chain length, saturation, and duration of exposure. Atherosclerosis 202(2):351–362. doi:https://doi.org/10.1016/j.atherosclerosis.2008.05.030
Acknowledgements
This study was supported by Grants-in-Aid for Scientific Research (C) (JP15K07935 to H.Y.), Challenging Exploratory Research (JP26560451 to K.K.), and Scientific Research on Innovative Areas (JP26110716 and JP17H06414 to H.Y. and JP25102008 to K.K.) from the Ministry of Education, Culture, Sports, Science and Technology of Japan, the Japan Agency for Medical Research and Development (to H.Y.) and Grant for Basic Science Research Projects from The Sumitomo Foundation (to T.Y.).
Author information
Authors and Affiliations
Corresponding authors
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Yagi, H., Yan, G., Suzuki, T. et al. Lewis X-Carrying Neoglycolipids Evoke Selective Apoptosis in Neural Stem Cells. Neurochem Res 43, 212–218 (2018). https://doi.org/10.1007/s11064-017-2415-5
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11064-017-2415-5