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Chondroitin Sulfate in Human Cutaneous Meissner and Pacinian Sensory Corpuscles |
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| Authors: | Jorge García-Piqueras Lucia Carcaba Yolanda García-Mesa Jorge Feito Beatriz García E Viña Juan Suárez-Quintanilla Juan Cobo Jose A Vega Olivia García-Suárez |
| Institution: | 1. Departamento de Morfología y Biología Celular, Grupo SINPOS Universidad de Oviedo, Oviedo, Spain;2. Departamento de Morfología y Biología Celular, Grupo SINPOS Universidad de Oviedo, Oviedo, Spain
Servicio de Anatomía Patológica, Hospital Universitario de Salamanca, Salamanca, Spain;3. Departamento de Biología Funcional, Universidad de Oviedo, Oviedo, Spain Instituto Universitario Fernández-Vega, Universidad de Oviedo, Fundación de Investigación Oftalmológica, Oviedo, Spain;4. Departamento de Morfología y Biología Celular, Grupo SINPOS Universidad de Oviedo, Oviedo, Spain Servicio de Cuidados Intensivos, Hospital de Cabueñes, Gijón, Spain;5. Departamento de Ciencias Morfológicas, Universidad de Santiago de Compostela, Santiago de Compostela, Spain;6. Instituto Asturiano de Odontología, Oviedo, Spain Departamento de Cirugía y Especialidades Médico-Quirúrgicas, Universidad de Oviedo, Oviedo, Spain;7. Departamento de Morfología y Biología Celular, Grupo SINPOS Universidad de Oviedo, Oviedo, Spain Instituto Universitario Fernández-Vega, Universidad de Oviedo, Fundación de Investigación Oftalmológica, Oviedo, Spain |
| Abstract: | Chondroitin sulfate is a glycosaminoglycan involved in maintaining the morphofunctional properties of the extracellular matrix in peripheral nerves, but its distribution in human sensory corpuscles is unknown despite the role of extracellular matrix in mechanotransduction and axonal guidance. In this study we used immunohistochemistry to analyze the distribution of chondroitin sulfate in human cutaneous Meissner and Pacinian corpuscles. Chondroitin sulfate expression was absent from Meissner corpuscles. In Pacinian corpuscles chondroitin sulfate was found associated to a CD34 positive endoneurial-related layer, interposed between the S100 protein positive inner core cells, and the vimentin positive inner core and outer core-capsule cells. Therefore, the intermediate CD34+/chondroitin sulfate+ intermediate layer present in Pacinian corpuscles isolates the neural segment of the corpuscles (axon and inner core) from the non-neural segments (outer core and capsule). These results suggest a role of chondroitin sulfate in the proper axonal growth and guidance, within the neuronal compartment of the Pacinian corpuscles during development and reinnervation, can be hypothesized. Moreover, a role of CS in mechanotransduction cannot be ruled out. Anat Rec, 302:325–331, 2019. © 2018 Wiley Periodicals, Inc. |
| Keywords: | chondroitin sulfate extracellular matrix intermediate layer Pacinian corpuscles Meissner corpuscles human |