Cell type-specific expression of fasciclin II isoforms reveals neuronal-glial interactions during peripheral nerve growth.
Cell type-specific expression of fasciclin II isoforms reveals neuronal-glial interactions during peripheral nerve growth.
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成束蛋白 II 亚型的细胞类型特异性表达揭示了周围神经生长过程中神经元-胶质细胞的相互作用。
DOI:
10.1006/dbio.2001.0247
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发表时间:
2001
期刊:
影响因子:
--
通讯作者:
Copenhaver,PF
中科院分区:
文献类型:
--
作者:
Wright,JW;Copenhaver,PF
During the formation of the insect peripheral nervous system (PNS), the cell adhesion receptor fasciclin II has been shown to play a prominent role in axonal fasciculation and synapse formation during motor neuron outgrowth. In the moth Manduca, fasciclin II (MFas II) is expressed both as a transmembrane isoform (TM-MFas II) and a glycosyl phosphatidylinositol-linked isoform (GPI-MFas II). By using RNA and antibody probes, we have shown that these two isoforms are expressed in nonoverlapping patterns: TM-MFas II is expressed exclusively by neurons and becomes localized to their most motile regions, while GPI-MFas II is expressed primarily by the glial cells that ensheath the peripheral nerves. This cell-type specificity of expression allowed us to monitor the nature of neuronal–glial interactions during PNS development. The outgrowth of TM-MFas II-positive axons in many regions preceded the arrival of GPI-MFas II-expressing glial processes that enwrapped them. In a few key locations, however, GPI-MFas II-positive glial cells differentiated before the arrival of the first axons and prefigured their subsequent trajectories. Prior inhibition of GPI-MFas II expression disrupted the subsequent outgrowth of axons at these locations but not elsewhere in the PNS. Our results suggest that the two isoforms of MFas II play distinct roles with respect to cellular motility and nerve formation.
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DOI:
--
发表时间:
1993
期刊:
Perspectives of Developmental Neurobiology
影响因子:
--
作者:
J. Silver
通讯作者:
J. Silver
影响因子:
56.9
作者:
MAYFORD, M;BARZILAI, A;KANDEL, ER
通讯作者:
KANDEL, ER
DOI:
10.1242/dev.120.6.1411
发表时间:
1994
期刊:
Development (Cambridge, England)
影响因子:
--
作者:
Bhattacharyya,A;Brackenbury,R;Ratner,N
通讯作者:
Ratner,N
影响因子:
56.9
作者:
Zheng, C;Heintz, N;Hatten, ME
通讯作者:
Hatten, ME
影响因子:
3.5
作者:
ZISCH, AH;DALESSANDRI, L;VAUGHAN, L
通讯作者:
VAUGHAN, L