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Synaptic connections between different sensory channels in CNS of the leech modulate the input of mechanosensory information

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Chinese Science Bulletin 1998年第9期43卷 769-774页

作者： Xin Huang Lijun Huang Renji Zhang Peking Univ Coll Life Sci Dept Physiol & Biophys Beijing 100871 Peoples R China

The mechanism for transmission of sensory information concerning a specific sensory modality or submodality can be called a sensory channel, including the receptors, sensory pathways and the parts of the central nervous system that further process the sensory information . A certain sensory channel can be activated by a suitable stimulus. Sensory information is transduced by sensory receptor and is further transferred into central nervous system. The characteristics of a modality or submodality are mainly determined by the properties of the corresponding sensory receptors. However, besides the receptor properties, are there any other factors which have influence on the properties of a sensory modality? Is there a kind of gating mechanism existing which could selectively control the inputs of sensory information based on different sensory channels? Here we are trying to answer the above questions by studying the functional relationships between different mechanosensory modalities of leech.

关键词： leech mechanosensory sensory channel modality gating mechanism central nervous system.

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Integrin-Mimetic mechanosensory Elastomer with Fluorescence Probe for Monitoring Chain Deformation in Situ

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CCS Chemistry 2022年第3期4卷 1065-1073页

作者： Chao Li Xiqi Zhang Longfei Luo Lei Jiang Longcheng Gao Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education Key Laboratory of Beijing EnergySchool of ChemistryBeihang UniversityBeijing 100191 Key Laboratory of Bio-Inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190 Beijing National Laboratory for Molecular Sciences Key Laboratory of Polymer Chemistry and Physics of Ministry of EducationCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871

mechanosensory elastomers attract intense interests in the academic and industrial ***,molecular insight of macroscopic properties remains a significant ***,we build up a correlation between the microscopic and macroscopic level by designing a mechanosensory elastomer with aggregation-induced emission luminogens(AIEgens)that monitors chain deformation in *** key constituents are the mechanosensory units,which are dynamic dimers bonded by ureidopyrimidinone(UPy)groups and tetraphenylethylene(TPE)for the fluorescence signal *** photoluminescence(PL)technique successfully monitors elastomer chain deformation under external *** PL intensity increases linearly at low elongation,in excellent agreement with Hooke’s law for ideal *** deviation from linear PL intensity is measured at high elongation,which can be theoretically described by the Langevin function.A correlation between the microscopic and the macroscopic level is then built.

关键词： biomimetic mechanosensory elastomer conformation AIE

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Demystifying Mechanosensitive Piezo Ion Channels

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Neuroscience Bulletin 2016年第3期32卷 307-309页

作者： X.Z.Shawn Xu Life Sciences Institute and Department of Molecular and Integrative Physiology University of Michigan

Mechanosensitive channels mediate touch,hearing,proprioception,and blood pressure *** proteins,including Piezo1 and Piezo2,represent a new class of mechanosensitive channels that have been reported to play key roles in most,if not all,of these *** structural architecture and molecular mechanisms by which Piezos act as mechanosensitive channels,however,remain *** new studies have now provided critical insights into the atomic structure and molecular basis of the ion permeation and mechano-gating properties of the Piezo1 channel.

关键词： Mechanosensation mechanosensory echanotransduction Mechanical Cryo-EM Piezo

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