A Poly-D-lysine-Coated Coralline Matrix Promotes Hippocampal Neural Precursor Cells’ Differentiation into GFAP-Positive Astrocytes
A major goal of regenerative medicine of the central nervous system is to accelerate the regeneration of nerve tissue, where astrocytes, despite their positive and negative roles, play a critical role. Thus, scaffolds capable of producing astrocytes from neural precursor cells (NPCs) are most desira...
Ausführliche Beschreibung
Autor*in: |
Roni Mina Hendler [verfasserIn] Orly Eva Weiss [verfasserIn] Tzachy Morad [verfasserIn] Guy Sion [verfasserIn] Michael Kirby [verfasserIn] Zvy Dubinsky [verfasserIn] Ayan Barbora [verfasserIn] Refael Minnes [verfasserIn] Danny Baranes [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2023 |
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Übergeordnetes Werk: |
In: Polymers - MDPI AG, 2011, 15(2023), 4054, p 4054 |
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Übergeordnetes Werk: |
volume:15 ; year:2023 ; number:4054, p 4054 |
Links: |
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DOI / URN: |
10.3390/polym15204054 |
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Katalog-ID: |
DOAJ09308708X |
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10.3390/polym15204054 doi (DE-627)DOAJ09308708X (DE-599)DOAJ78b31b9738ca46138db99676611f354d DE-627 ger DE-627 rakwb eng QD241-441 Roni Mina Hendler verfasserin aut A Poly-D-lysine-Coated Coralline Matrix Promotes Hippocampal Neural Precursor Cells’ Differentiation into GFAP-Positive Astrocytes 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A major goal of regenerative medicine of the central nervous system is to accelerate the regeneration of nerve tissue, where astrocytes, despite their positive and negative roles, play a critical role. Thus, scaffolds capable of producing astrocytes from neural precursor cells (NPCs) are most desirable. Our study shows that NPCs are converted into reactive astrocytes upon cultivation on coralline-derived calcium carbonate coated with poly-D-lysine (PDL-CS). As shown via nuclei staining, the adhesion of neurospheres containing hundreds of hippocampal neural cells to PDL-CS resulted in disaggregation of the cell cluster as well as the radial migration of dozens of cells away from the neurosphere core. Migrating cells per neurosphere averaged 100 on PDL-CS, significantly higher than on uncoated CS (28), PDL-coated glass (65), or uncoated glass (20). After 3 days of culture on PDL-CS, cell migration plateaued and remained stable for four more days. In addition, NPCs expressing nestin underwent continuous morphological changes from round to spiky, extending and elongating their processes, resembling activated astrocytes. The extension of the process increased continuously during the maturation of the culture and doubled after 7 days compared to day 1, whereas bifurcation increased by twofold during the first 3 days before plateauing. In addition, nestin positive cells’ shape, measured through the opposite circularity level correlation, decreased approximately twofold after three days, indicating spiky transformation. Moreover, nestin-positive cells co-expressing GFAP increased by 2.2 from day 1 to 7, reaching 40% of the NPC population on day 7. In this way, PDL-CS promotes NPC differentiation into reactive astrocytes, which could accelerate the repair of neural tissue. polylysine calcium carbonate hippocampal cells neural progenitor cells astrocytes nestin Organic chemistry Orly Eva Weiss verfasserin aut Tzachy Morad verfasserin aut Guy Sion verfasserin aut Michael Kirby verfasserin aut Zvy Dubinsky verfasserin aut Ayan Barbora verfasserin aut Refael Minnes verfasserin aut Danny Baranes verfasserin aut In Polymers MDPI AG, 2011 15(2023), 4054, p 4054 (DE-627)61409612X (DE-600)2527146-5 20734360 nnns volume:15 year:2023 number:4054, p 4054 https://doi.org/10.3390/polym15204054 kostenfrei https://doaj.org/article/78b31b9738ca46138db99676611f354d kostenfrei https://www.mdpi.com/2073-4360/15/20/4054 kostenfrei https://doaj.org/toc/2073-4360 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 4054, p 4054 |
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10.3390/polym15204054 doi (DE-627)DOAJ09308708X (DE-599)DOAJ78b31b9738ca46138db99676611f354d DE-627 ger DE-627 rakwb eng QD241-441 Roni Mina Hendler verfasserin aut A Poly-D-lysine-Coated Coralline Matrix Promotes Hippocampal Neural Precursor Cells’ Differentiation into GFAP-Positive Astrocytes 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A major goal of regenerative medicine of the central nervous system is to accelerate the regeneration of nerve tissue, where astrocytes, despite their positive and negative roles, play a critical role. Thus, scaffolds capable of producing astrocytes from neural precursor cells (NPCs) are most desirable. Our study shows that NPCs are converted into reactive astrocytes upon cultivation on coralline-derived calcium carbonate coated with poly-D-lysine (PDL-CS). As shown via nuclei staining, the adhesion of neurospheres containing hundreds of hippocampal neural cells to PDL-CS resulted in disaggregation of the cell cluster as well as the radial migration of dozens of cells away from the neurosphere core. Migrating cells per neurosphere averaged 100 on PDL-CS, significantly higher than on uncoated CS (28), PDL-coated glass (65), or uncoated glass (20). After 3 days of culture on PDL-CS, cell migration plateaued and remained stable for four more days. In addition, NPCs expressing nestin underwent continuous morphological changes from round to spiky, extending and elongating their processes, resembling activated astrocytes. The extension of the process increased continuously during the maturation of the culture and doubled after 7 days compared to day 1, whereas bifurcation increased by twofold during the first 3 days before plateauing. In addition, nestin positive cells’ shape, measured through the opposite circularity level correlation, decreased approximately twofold after three days, indicating spiky transformation. Moreover, nestin-positive cells co-expressing GFAP increased by 2.2 from day 1 to 7, reaching 40% of the NPC population on day 7. In this way, PDL-CS promotes NPC differentiation into reactive astrocytes, which could accelerate the repair of neural tissue. polylysine calcium carbonate hippocampal cells neural progenitor cells astrocytes nestin Organic chemistry Orly Eva Weiss verfasserin aut Tzachy Morad verfasserin aut Guy Sion verfasserin aut Michael Kirby verfasserin aut Zvy Dubinsky verfasserin aut Ayan Barbora verfasserin aut Refael Minnes verfasserin aut Danny Baranes verfasserin aut In Polymers MDPI AG, 2011 15(2023), 4054, p 4054 (DE-627)61409612X (DE-600)2527146-5 20734360 nnns volume:15 year:2023 number:4054, p 4054 https://doi.org/10.3390/polym15204054 kostenfrei https://doaj.org/article/78b31b9738ca46138db99676611f354d kostenfrei https://www.mdpi.com/2073-4360/15/20/4054 kostenfrei https://doaj.org/toc/2073-4360 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 4054, p 4054 |
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10.3390/polym15204054 doi (DE-627)DOAJ09308708X (DE-599)DOAJ78b31b9738ca46138db99676611f354d DE-627 ger DE-627 rakwb eng QD241-441 Roni Mina Hendler verfasserin aut A Poly-D-lysine-Coated Coralline Matrix Promotes Hippocampal Neural Precursor Cells’ Differentiation into GFAP-Positive Astrocytes 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A major goal of regenerative medicine of the central nervous system is to accelerate the regeneration of nerve tissue, where astrocytes, despite their positive and negative roles, play a critical role. Thus, scaffolds capable of producing astrocytes from neural precursor cells (NPCs) are most desirable. Our study shows that NPCs are converted into reactive astrocytes upon cultivation on coralline-derived calcium carbonate coated with poly-D-lysine (PDL-CS). As shown via nuclei staining, the adhesion of neurospheres containing hundreds of hippocampal neural cells to PDL-CS resulted in disaggregation of the cell cluster as well as the radial migration of dozens of cells away from the neurosphere core. Migrating cells per neurosphere averaged 100 on PDL-CS, significantly higher than on uncoated CS (28), PDL-coated glass (65), or uncoated glass (20). After 3 days of culture on PDL-CS, cell migration plateaued and remained stable for four more days. In addition, NPCs expressing nestin underwent continuous morphological changes from round to spiky, extending and elongating their processes, resembling activated astrocytes. The extension of the process increased continuously during the maturation of the culture and doubled after 7 days compared to day 1, whereas bifurcation increased by twofold during the first 3 days before plateauing. In addition, nestin positive cells’ shape, measured through the opposite circularity level correlation, decreased approximately twofold after three days, indicating spiky transformation. Moreover, nestin-positive cells co-expressing GFAP increased by 2.2 from day 1 to 7, reaching 40% of the NPC population on day 7. In this way, PDL-CS promotes NPC differentiation into reactive astrocytes, which could accelerate the repair of neural tissue. polylysine calcium carbonate hippocampal cells neural progenitor cells astrocytes nestin Organic chemistry Orly Eva Weiss verfasserin aut Tzachy Morad verfasserin aut Guy Sion verfasserin aut Michael Kirby verfasserin aut Zvy Dubinsky verfasserin aut Ayan Barbora verfasserin aut Refael Minnes verfasserin aut Danny Baranes verfasserin aut In Polymers MDPI AG, 2011 15(2023), 4054, p 4054 (DE-627)61409612X (DE-600)2527146-5 20734360 nnns volume:15 year:2023 number:4054, p 4054 https://doi.org/10.3390/polym15204054 kostenfrei https://doaj.org/article/78b31b9738ca46138db99676611f354d kostenfrei https://www.mdpi.com/2073-4360/15/20/4054 kostenfrei https://doaj.org/toc/2073-4360 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 4054, p 4054 |
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10.3390/polym15204054 doi (DE-627)DOAJ09308708X (DE-599)DOAJ78b31b9738ca46138db99676611f354d DE-627 ger DE-627 rakwb eng QD241-441 Roni Mina Hendler verfasserin aut A Poly-D-lysine-Coated Coralline Matrix Promotes Hippocampal Neural Precursor Cells’ Differentiation into GFAP-Positive Astrocytes 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A major goal of regenerative medicine of the central nervous system is to accelerate the regeneration of nerve tissue, where astrocytes, despite their positive and negative roles, play a critical role. Thus, scaffolds capable of producing astrocytes from neural precursor cells (NPCs) are most desirable. Our study shows that NPCs are converted into reactive astrocytes upon cultivation on coralline-derived calcium carbonate coated with poly-D-lysine (PDL-CS). As shown via nuclei staining, the adhesion of neurospheres containing hundreds of hippocampal neural cells to PDL-CS resulted in disaggregation of the cell cluster as well as the radial migration of dozens of cells away from the neurosphere core. Migrating cells per neurosphere averaged 100 on PDL-CS, significantly higher than on uncoated CS (28), PDL-coated glass (65), or uncoated glass (20). After 3 days of culture on PDL-CS, cell migration plateaued and remained stable for four more days. In addition, NPCs expressing nestin underwent continuous morphological changes from round to spiky, extending and elongating their processes, resembling activated astrocytes. The extension of the process increased continuously during the maturation of the culture and doubled after 7 days compared to day 1, whereas bifurcation increased by twofold during the first 3 days before plateauing. In addition, nestin positive cells’ shape, measured through the opposite circularity level correlation, decreased approximately twofold after three days, indicating spiky transformation. Moreover, nestin-positive cells co-expressing GFAP increased by 2.2 from day 1 to 7, reaching 40% of the NPC population on day 7. In this way, PDL-CS promotes NPC differentiation into reactive astrocytes, which could accelerate the repair of neural tissue. polylysine calcium carbonate hippocampal cells neural progenitor cells astrocytes nestin Organic chemistry Orly Eva Weiss verfasserin aut Tzachy Morad verfasserin aut Guy Sion verfasserin aut Michael Kirby verfasserin aut Zvy Dubinsky verfasserin aut Ayan Barbora verfasserin aut Refael Minnes verfasserin aut Danny Baranes verfasserin aut In Polymers MDPI AG, 2011 15(2023), 4054, p 4054 (DE-627)61409612X (DE-600)2527146-5 20734360 nnns volume:15 year:2023 number:4054, p 4054 https://doi.org/10.3390/polym15204054 kostenfrei https://doaj.org/article/78b31b9738ca46138db99676611f354d kostenfrei https://www.mdpi.com/2073-4360/15/20/4054 kostenfrei https://doaj.org/toc/2073-4360 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 4054, p 4054 |
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10.3390/polym15204054 doi (DE-627)DOAJ09308708X (DE-599)DOAJ78b31b9738ca46138db99676611f354d DE-627 ger DE-627 rakwb eng QD241-441 Roni Mina Hendler verfasserin aut A Poly-D-lysine-Coated Coralline Matrix Promotes Hippocampal Neural Precursor Cells’ Differentiation into GFAP-Positive Astrocytes 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A major goal of regenerative medicine of the central nervous system is to accelerate the regeneration of nerve tissue, where astrocytes, despite their positive and negative roles, play a critical role. Thus, scaffolds capable of producing astrocytes from neural precursor cells (NPCs) are most desirable. Our study shows that NPCs are converted into reactive astrocytes upon cultivation on coralline-derived calcium carbonate coated with poly-D-lysine (PDL-CS). As shown via nuclei staining, the adhesion of neurospheres containing hundreds of hippocampal neural cells to PDL-CS resulted in disaggregation of the cell cluster as well as the radial migration of dozens of cells away from the neurosphere core. Migrating cells per neurosphere averaged 100 on PDL-CS, significantly higher than on uncoated CS (28), PDL-coated glass (65), or uncoated glass (20). After 3 days of culture on PDL-CS, cell migration plateaued and remained stable for four more days. In addition, NPCs expressing nestin underwent continuous morphological changes from round to spiky, extending and elongating their processes, resembling activated astrocytes. The extension of the process increased continuously during the maturation of the culture and doubled after 7 days compared to day 1, whereas bifurcation increased by twofold during the first 3 days before plateauing. In addition, nestin positive cells’ shape, measured through the opposite circularity level correlation, decreased approximately twofold after three days, indicating spiky transformation. Moreover, nestin-positive cells co-expressing GFAP increased by 2.2 from day 1 to 7, reaching 40% of the NPC population on day 7. In this way, PDL-CS promotes NPC differentiation into reactive astrocytes, which could accelerate the repair of neural tissue. polylysine calcium carbonate hippocampal cells neural progenitor cells astrocytes nestin Organic chemistry Orly Eva Weiss verfasserin aut Tzachy Morad verfasserin aut Guy Sion verfasserin aut Michael Kirby verfasserin aut Zvy Dubinsky verfasserin aut Ayan Barbora verfasserin aut Refael Minnes verfasserin aut Danny Baranes verfasserin aut In Polymers MDPI AG, 2011 15(2023), 4054, p 4054 (DE-627)61409612X (DE-600)2527146-5 20734360 nnns volume:15 year:2023 number:4054, p 4054 https://doi.org/10.3390/polym15204054 kostenfrei https://doaj.org/article/78b31b9738ca46138db99676611f354d kostenfrei https://www.mdpi.com/2073-4360/15/20/4054 kostenfrei https://doaj.org/toc/2073-4360 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2023 4054, p 4054 |
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A Poly-D-lysine-Coated Coralline Matrix Promotes Hippocampal Neural Precursor Cells’ Differentiation into GFAP-Positive Astrocytes |
abstract |
A major goal of regenerative medicine of the central nervous system is to accelerate the regeneration of nerve tissue, where astrocytes, despite their positive and negative roles, play a critical role. Thus, scaffolds capable of producing astrocytes from neural precursor cells (NPCs) are most desirable. Our study shows that NPCs are converted into reactive astrocytes upon cultivation on coralline-derived calcium carbonate coated with poly-D-lysine (PDL-CS). As shown via nuclei staining, the adhesion of neurospheres containing hundreds of hippocampal neural cells to PDL-CS resulted in disaggregation of the cell cluster as well as the radial migration of dozens of cells away from the neurosphere core. Migrating cells per neurosphere averaged 100 on PDL-CS, significantly higher than on uncoated CS (28), PDL-coated glass (65), or uncoated glass (20). After 3 days of culture on PDL-CS, cell migration plateaued and remained stable for four more days. In addition, NPCs expressing nestin underwent continuous morphological changes from round to spiky, extending and elongating their processes, resembling activated astrocytes. The extension of the process increased continuously during the maturation of the culture and doubled after 7 days compared to day 1, whereas bifurcation increased by twofold during the first 3 days before plateauing. In addition, nestin positive cells’ shape, measured through the opposite circularity level correlation, decreased approximately twofold after three days, indicating spiky transformation. Moreover, nestin-positive cells co-expressing GFAP increased by 2.2 from day 1 to 7, reaching 40% of the NPC population on day 7. In this way, PDL-CS promotes NPC differentiation into reactive astrocytes, which could accelerate the repair of neural tissue. |
abstractGer |
A major goal of regenerative medicine of the central nervous system is to accelerate the regeneration of nerve tissue, where astrocytes, despite their positive and negative roles, play a critical role. Thus, scaffolds capable of producing astrocytes from neural precursor cells (NPCs) are most desirable. Our study shows that NPCs are converted into reactive astrocytes upon cultivation on coralline-derived calcium carbonate coated with poly-D-lysine (PDL-CS). As shown via nuclei staining, the adhesion of neurospheres containing hundreds of hippocampal neural cells to PDL-CS resulted in disaggregation of the cell cluster as well as the radial migration of dozens of cells away from the neurosphere core. Migrating cells per neurosphere averaged 100 on PDL-CS, significantly higher than on uncoated CS (28), PDL-coated glass (65), or uncoated glass (20). After 3 days of culture on PDL-CS, cell migration plateaued and remained stable for four more days. In addition, NPCs expressing nestin underwent continuous morphological changes from round to spiky, extending and elongating their processes, resembling activated astrocytes. The extension of the process increased continuously during the maturation of the culture and doubled after 7 days compared to day 1, whereas bifurcation increased by twofold during the first 3 days before plateauing. In addition, nestin positive cells’ shape, measured through the opposite circularity level correlation, decreased approximately twofold after three days, indicating spiky transformation. Moreover, nestin-positive cells co-expressing GFAP increased by 2.2 from day 1 to 7, reaching 40% of the NPC population on day 7. In this way, PDL-CS promotes NPC differentiation into reactive astrocytes, which could accelerate the repair of neural tissue. |
abstract_unstemmed |
A major goal of regenerative medicine of the central nervous system is to accelerate the regeneration of nerve tissue, where astrocytes, despite their positive and negative roles, play a critical role. Thus, scaffolds capable of producing astrocytes from neural precursor cells (NPCs) are most desirable. Our study shows that NPCs are converted into reactive astrocytes upon cultivation on coralline-derived calcium carbonate coated with poly-D-lysine (PDL-CS). As shown via nuclei staining, the adhesion of neurospheres containing hundreds of hippocampal neural cells to PDL-CS resulted in disaggregation of the cell cluster as well as the radial migration of dozens of cells away from the neurosphere core. Migrating cells per neurosphere averaged 100 on PDL-CS, significantly higher than on uncoated CS (28), PDL-coated glass (65), or uncoated glass (20). After 3 days of culture on PDL-CS, cell migration plateaued and remained stable for four more days. In addition, NPCs expressing nestin underwent continuous morphological changes from round to spiky, extending and elongating their processes, resembling activated astrocytes. The extension of the process increased continuously during the maturation of the culture and doubled after 7 days compared to day 1, whereas bifurcation increased by twofold during the first 3 days before plateauing. In addition, nestin positive cells’ shape, measured through the opposite circularity level correlation, decreased approximately twofold after three days, indicating spiky transformation. Moreover, nestin-positive cells co-expressing GFAP increased by 2.2 from day 1 to 7, reaching 40% of the NPC population on day 7. In this way, PDL-CS promotes NPC differentiation into reactive astrocytes, which could accelerate the repair of neural tissue. |
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container_issue |
4054, p 4054 |
title_short |
A Poly-D-lysine-Coated Coralline Matrix Promotes Hippocampal Neural Precursor Cells’ Differentiation into GFAP-Positive Astrocytes |
url |
https://doi.org/10.3390/polym15204054 https://doaj.org/article/78b31b9738ca46138db99676611f354d https://www.mdpi.com/2073-4360/15/20/4054 https://doaj.org/toc/2073-4360 |
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Orly Eva Weiss Tzachy Morad Guy Sion Michael Kirby Zvy Dubinsky Ayan Barbora Refael Minnes Danny Baranes |
author2Str |
Orly Eva Weiss Tzachy Morad Guy Sion Michael Kirby Zvy Dubinsky Ayan Barbora Refael Minnes Danny Baranes |
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up_date |
2024-07-03T15:11:22.491Z |
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