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- Publisher Website: 10.3233/RNN-1993-6103
- Scopus: eid_2-s2.0-0027772131
- PMID: 21551728
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Article: Sprouting of axon-like processes from axotomized retinal ganglion cells is influenced by the distance of axotomy from the cell body and the mode of transplantation of the peripheral nerve
Title | Sprouting of axon-like processes from axotomized retinal ganglion cells is influenced by the distance of axotomy from the cell body and the mode of transplantation of the peripheral nerve |
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Authors | |
Keywords | Axon-like process Axotomy Intravitreal graft Peripheral nerve graft Retinal ganglion cell |
Issue Date | 1993 |
Publisher | IOS Press. The Journal's web site is located at http://www.iospress.nl/html/09226028.php |
Citation | Restorative Neurology And Neuroscience, 1993, v. 6 n. 1, p. 29-34 How to Cite? |
Abstract | It is a well known fact that the proximity of an axonal lesion from the cell body influences the degree of neuronal survival; a lesion close to the cell body leads to more severe cell death and vice versa. On the other hand, experiments involving transplantation of a peripheral nerve (PN) to various central nervous system (CNS) regions to induce axonal regeneration have suggested that axonal regrowth is more vigorous when the grafting is performed closer to the cell body. It is not clear, however, whether it is the distance of the site of axotomy or the location of the trophic source (PN graft) or both from the cell body which dictates the vigorousness of axonal regrowth. Using either a model of transplantation of a PN to the retina or implantation of a short PN into the vitreous body of the eye of the adult hamster, we have demonstrated that sprouting of axon-like processes from retinal ganglion cells (RGCs) depends on the distance of axotomy from the cell body when the PN graft is maintained at a constant distance from the cell body. Moreover, it was found that the distance of axotomy at which sprouting of axon-like processes could be induced was different for the 2 paradigms: with the intravitreal PN model, sprouting was observed even after intracranial ON cut whereas it was absent in the PN grafting-to-retina paradigm. This suggests that extrinsic influence (in this case an intravitreal PN) can overcome to a certain extent the growth-suppressive effects due to a certain extent the growth-suppressive effects due to a long distance of axotomy. |
Persistent Identifier | http://hdl.handle.net/10722/67350 |
ISSN | 2023 Impact Factor: 1.9 2023 SCImago Journal Rankings: 0.612 |
DC Field | Value | Language |
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dc.contributor.author | Cho, EYP | en_HK |
dc.contributor.author | So, KF | en_HK |
dc.date.accessioned | 2010-09-06T05:54:20Z | - |
dc.date.available | 2010-09-06T05:54:20Z | - |
dc.date.issued | 1993 | en_HK |
dc.identifier.citation | Restorative Neurology And Neuroscience, 1993, v. 6 n. 1, p. 29-34 | en_HK |
dc.identifier.issn | 0922-6028 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/67350 | - |
dc.description.abstract | It is a well known fact that the proximity of an axonal lesion from the cell body influences the degree of neuronal survival; a lesion close to the cell body leads to more severe cell death and vice versa. On the other hand, experiments involving transplantation of a peripheral nerve (PN) to various central nervous system (CNS) regions to induce axonal regeneration have suggested that axonal regrowth is more vigorous when the grafting is performed closer to the cell body. It is not clear, however, whether it is the distance of the site of axotomy or the location of the trophic source (PN graft) or both from the cell body which dictates the vigorousness of axonal regrowth. Using either a model of transplantation of a PN to the retina or implantation of a short PN into the vitreous body of the eye of the adult hamster, we have demonstrated that sprouting of axon-like processes from retinal ganglion cells (RGCs) depends on the distance of axotomy from the cell body when the PN graft is maintained at a constant distance from the cell body. Moreover, it was found that the distance of axotomy at which sprouting of axon-like processes could be induced was different for the 2 paradigms: with the intravitreal PN model, sprouting was observed even after intracranial ON cut whereas it was absent in the PN grafting-to-retina paradigm. This suggests that extrinsic influence (in this case an intravitreal PN) can overcome to a certain extent the growth-suppressive effects due to a certain extent the growth-suppressive effects due to a long distance of axotomy. | en_HK |
dc.language | eng | en_HK |
dc.publisher | IOS Press. The Journal's web site is located at http://www.iospress.nl/html/09226028.php | en_HK |
dc.relation.ispartof | Restorative Neurology and Neuroscience | en_HK |
dc.rights | Restorative Neurology and Neuroscience. Copyright © IOS Press. | en_HK |
dc.subject | Axon-like process | en_HK |
dc.subject | Axotomy | en_HK |
dc.subject | Intravitreal graft | en_HK |
dc.subject | Peripheral nerve graft | en_HK |
dc.subject | Retinal ganglion cell | en_HK |
dc.title | Sprouting of axon-like processes from axotomized retinal ganglion cells is influenced by the distance of axotomy from the cell body and the mode of transplantation of the peripheral nerve | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0922-6028&volume=6&spage=29&epage=34&date=1993&atitle=Sprouting+of+axon-like+processes+from+axotomized+retinal+ganglion+cells+is+influenced+by+the+distance+of+axotomy+from+the+cell+body+and+the+mode+of+transplantation+of+the+peripheral+nerve | en_HK |
dc.identifier.email | So, KF:hrmaskf@hkucc.hku.hk | en_HK |
dc.identifier.authority | So, KF=rp00329 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.3233/RNN-1993-6103 | - |
dc.identifier.pmid | 21551728 | - |
dc.identifier.scopus | eid_2-s2.0-0027772131 | en_HK |
dc.identifier.hkuros | 7724 | en_HK |
dc.identifier.volume | 6 | en_HK |
dc.identifier.issue | 1 | en_HK |
dc.identifier.spage | 29 | en_HK |
dc.identifier.epage | 34 | en_HK |
dc.publisher.place | Netherlands | en_HK |
dc.identifier.scopusauthorid | Cho, EYP=7202649985 | en_HK |
dc.identifier.scopusauthorid | So, KF=34668391300 | en_HK |
dc.identifier.issnl | 0922-6028 | - |