Sulf1 and Sulf2 Differentially Modulate Heparan Sulfate Proteoglycan Sulfation during Postnatal Cerebellum Development: Evidence for Neuroprotective and Neurite Outgrowth Promoting Functions

Kalus I, Rohn S, Puvirajesinghe TM, Guimond SE, Eyckerman-Kölln P, ten Dam G, van Kuppevelt TH, Turnbull JE, Dierks T (2015)
PLoS ONE 10(10): e0139853.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Introduction Sulf1 and Sulf2 are cell surface sulfatases, which remove specific 6-O-sulfate groups from heparan sulfate (HS) proteoglycans, resulting in modulation of various HS-dependent signaling pathways. Both Sulf1 and Sulf2 knockout mice show impairments in brain development and neurite outgrowth deficits in neurons. Methodology and Main Findings To analyze the molecular mechanisms behind these impairments we focused on the postnatal cerebellum, whose development is mainly characterized by proliferation, migration, and neurite outgrowth processes of precursor neurons. Primary cerebellar granule cells isolated from Sulf1 or Sulf2 deficient newborns are characterized by a reduction in neurite length and cell survival. Furthermore, Sulf1 deficiency leads to a reduced migration capacity. The observed impairments in cell survival and neurite outgrowth could be correlated to Sulf-specific interference with signaling pathways, as shown for FGF2, GDNF and NGF. In contrast, signaling of Shh, which determines the laminar organization of the cerebellar cortex, was not influenced in either Sulf1 or Sulf2 knockouts. Biochemical analysis of cerebellar HS demonstrated, for the first time in vivo, Sulf-specific changes of 6-O-, 2-O-and N-sulfation in the knockouts. Changes of a particular HS epitope were found on the surface of Sulf2-deficient cerebellar neurons. This epitope showed a restricted localization to the inner half of the external granular layer of the postnatal cerebellum, where precursor cells undergo final maturation to form synaptic contacts. Conclusion Sulfs introduce dynamic changes in HS proteoglycan sulfation patterns of the postnatal cerebellum, thereby orchestrating fundamental mechanisms underlying brain development.
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PLoS ONE
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10
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10
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e0139853
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Kalus I, Rohn S, Puvirajesinghe TM, et al. Sulf1 and Sulf2 Differentially Modulate Heparan Sulfate Proteoglycan Sulfation during Postnatal Cerebellum Development: Evidence for Neuroprotective and Neurite Outgrowth Promoting Functions. PLoS ONE. 2015;10(10): e0139853.
Kalus, I., Rohn, S., Puvirajesinghe, T. M., Guimond, S. E., Eyckerman-Kölln, P., ten Dam, G., van Kuppevelt, T. H., et al. (2015). Sulf1 and Sulf2 Differentially Modulate Heparan Sulfate Proteoglycan Sulfation during Postnatal Cerebellum Development: Evidence for Neuroprotective and Neurite Outgrowth Promoting Functions. PLoS ONE, 10(10), e0139853. doi:10.1371/journal.pone.0139853
Kalus, I., Rohn, S., Puvirajesinghe, T. M., Guimond, S. E., Eyckerman-Kölln, P., ten Dam, G., van Kuppevelt, T. H., Turnbull, J. E., and Dierks, T. (2015). Sulf1 and Sulf2 Differentially Modulate Heparan Sulfate Proteoglycan Sulfation during Postnatal Cerebellum Development: Evidence for Neuroprotective and Neurite Outgrowth Promoting Functions. PLoS ONE 10:e0139853.
Kalus, I., et al., 2015. Sulf1 and Sulf2 Differentially Modulate Heparan Sulfate Proteoglycan Sulfation during Postnatal Cerebellum Development: Evidence for Neuroprotective and Neurite Outgrowth Promoting Functions. PLoS ONE, 10(10): e0139853.
I. Kalus, et al., “Sulf1 and Sulf2 Differentially Modulate Heparan Sulfate Proteoglycan Sulfation during Postnatal Cerebellum Development: Evidence for Neuroprotective and Neurite Outgrowth Promoting Functions”, PLoS ONE, vol. 10, 2015, : e0139853.
Kalus, I., Rohn, S., Puvirajesinghe, T.M., Guimond, S.E., Eyckerman-Kölln, P., ten Dam, G., van Kuppevelt, T.H., Turnbull, J.E., Dierks, T.: Sulf1 and Sulf2 Differentially Modulate Heparan Sulfate Proteoglycan Sulfation during Postnatal Cerebellum Development: Evidence for Neuroprotective and Neurite Outgrowth Promoting Functions. PLoS ONE. 10, : e0139853 (2015).
Kalus, Ina, Rohn, Susanne, Puvirajesinghe, Tania M., Guimond, Scott E., Eyckerman-Kölln, Pieter, ten Dam, Gerdy, van Kuppevelt, Toin H., Turnbull, Jeremy E., and Dierks, Thomas. “Sulf1 and Sulf2 Differentially Modulate Heparan Sulfate Proteoglycan Sulfation during Postnatal Cerebellum Development: Evidence for Neuroprotective and Neurite Outgrowth Promoting Functions”. PLoS ONE 10.10 (2015): e0139853.

7 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

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