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Cerebrovascularβ-dystroglycan immunoreactivity in vertebrates:not detected in anurans and in the teleosts Ostariophysi and Euteleostei

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Integrative Zoology 2020年第1期15卷 16-31页

作者： Mihály KÁLMÁN David L.LŐRINCZ Olivér M.SEBŐK csilla ari Erzsébet OSZWALD Hiroaki SOMIYA Veronika JANCSIK Department of Anatomy Histology and EmbryologySemmelweis UniversityBudapestHungary University of Leicester Dept.of NeurosciencePsychology and BehaviourLeicesterUnited Kingdom Hyperbaric Neuroscience Research Lab. Dept of PsychologyUniversity of South FloridaTampaFloridaUSA Department of Environmental Biology Chubu UniversityChubuJapan Department of Anatomy Veterinary UniversityBudapestHungary

The aim of the present paper was to check for the presence of cerebrovascular dystroglycan in vertebrates,because dystroglycan,which is localized in the vascular astroglial end-feet,has a pivotal function in glio-vascular *** mammalian brains,the immunoreactivity ofβ-dystroglycan subunit delineates the *** results of the present study demonstrate similar patterns in other vertebrates,except for anurans and the teleost groups Ostariophysi and *** this study,we investigated 1 or 2 representative species of the main groups of Chondrichthyes,teleost and non-teleost ray-finned fishes,urodeles,anurans,and *** also investigated 5 mammalian and 3 bird *** were obtained from breeders or *** presence ofβ-dystroglycan was investigated immunohistochemically in free-floating ***-embedding electron microscopical immunohistochemistry on Heterodontus japonicus shark brains demonstrated that in Elasmobranchii,β-dystroglycan is also localized in the perivascular glial end-feet despite the different construction of their blood-brain *** results indicated that the cerebrovascularβ-dystroglycan immunoreactivity disappeared separately in anurans,and in teleosts,in the latter group before its division to Ostariophysi and ***munohistochemistry in muscles and western blots from brain homogenates,however,detected the presence ofβ-dystroglycan,even in anurans and all teleosts.A possible explanation is that in the glial end-feet,β-dystroglycan is masked in these animals,or disappeared during adaptation to the freshwater habitat.

关键词： anurans cerebrovascular dystroglycan elasmobranchs teleosts

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