| pubmed-article:19631637 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:19631637 | lifeskim:mentions | umls-concept:C0078058 | lld:lifeskim |
| pubmed-article:19631637 | lifeskim:mentions | umls-concept:C1801960 | lld:lifeskim |
| pubmed-article:19631637 | lifeskim:mentions | umls-concept:C0021516 | lld:lifeskim |
| pubmed-article:19631637 | lifeskim:mentions | umls-concept:C1709060 | lld:lifeskim |
| pubmed-article:19631637 | pubmed:issue | 1 | lld:pubmed |
| pubmed-article:19631637 | pubmed:dateCreated | 2009-9-15 | lld:pubmed |
| pubmed-article:19631637 | pubmed:abstractText | Sympathetic nerve activity regulates blood pressure by altering peripheral vascular resistance. Variations in vascular sympathetic innervation suggest that vascular-derived cues promote selective innervation of particular vessels during development. As axons extend towards peripheral targets, they migrate along arterial networks following gradients of guidance cues. Collective ratios of these gradients may determine whether axons grow towards and innervate vessels or continue past non-innervated vessels towards peripheral targets. Utilizing directed neurite outgrowth in a three-dimensional (3D) co-culture, we observed increased axon growth from superior cervical ganglion explants (SCG) towards innervated compared to non-innervated vessels, mediated in part by vascular endothelial growth factor (VEGF-A) and Semaphorin3A (Sema3A) which both signal via neuropilin-1 (Nrp1). Exogenous VEGF-A, delivered by high-expressing VEGF-A-LacZ vessels or by rhVEGF-A/alginate spheres, increased sympathetic neurite outgrowth while exogenous rhSema3A/Fc decreased neurite outgrowth. VEGF-A expression is similar between the innervated and non-innervated vessels examined. Sema3A expression is higher in non-innervated vessels. Spatial gradients of Sema3A and VEGF-A may promote differential Nrp1 binding. Vessels expressing high levels of Sema3A favor Nrp1-PlexinA1 signaling, producing chemorepulsive cues limiting sympathetic neurite outgrowth and vascular innervation; while low Sema3A expressing vessels favor Nrp1-VEGFR2 signaling providing chemoattractive cues for sympathetic neurite outgrowth and vascular innervation. | lld:pubmed |
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| pubmed-article:19631637 | pubmed:language | eng | lld:pubmed |
| pubmed-article:19631637 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:19631637 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:19631637 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:19631637 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:19631637 | pubmed:month | Oct | lld:pubmed |
| pubmed-article:19631637 | pubmed:issn | 1095-564X | lld:pubmed |
| pubmed-article:19631637 | pubmed:author | pubmed-author:MadriJoseph... | lld:pubmed |
| pubmed-article:19631637 | pubmed:author | pubmed-author:SegalSteven... | lld:pubmed |
| pubmed-article:19631637 | pubmed:author | pubmed-author:LongJennifer... | lld:pubmed |
| pubmed-article:19631637 | pubmed:author | pubmed-author:JaySteven MSM | lld:pubmed |
| pubmed-article:19631637 | pubmed:issnType | Electronic | lld:pubmed |
| pubmed-article:19631637 | pubmed:day | 1 | lld:pubmed |
| pubmed-article:19631637 | pubmed:volume | 334 | lld:pubmed |
| pubmed-article:19631637 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:19631637 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:19631637 | pubmed:pagination | 119-32 | lld:pubmed |
| pubmed-article:19631637 | pubmed:dateRevised | 2011-9-26 | lld:pubmed |
| pubmed-article:19631637 | pubmed:meshHeading | pubmed-meshheading:19631637... | lld:pubmed |
| pubmed-article:19631637 | pubmed:meshHeading | pubmed-meshheading:19631637... | lld:pubmed |
| pubmed-article:19631637 | pubmed:meshHeading | pubmed-meshheading:19631637... | lld:pubmed |
