• Nanion技术: 离子通道研究的智能工具

    Nanion技术: 离子通道研究的智能工具

  • CardioExcyte 96 SOL:用光遗传的手段起搏心肌细胞

    CardioExcyte 96 SOL:用光遗传的手段起搏心肌细胞

  • SURFE²R 96SE: 非标记高通量转运体筛选

    SURFE²R 96SE: 非标记高通量转运体筛选

  • 脂双层记录: Orbit产品系列

    脂双层记录: Orbit产品系列

我们的产品目录

SyncroPatch 384i

SyncroPatch 384i

Patchliner

Patchliner

Port-a-Patch

Port-a-Patch

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Port-a-Patch mini

CardioExcyte 96

CardioExcyte 96

FLEXcyte 96

FLEXcyte 96

SURFE²R 96SE

SURFE²R 96SE

SURFE²R N1

SURFE²R N1

Orbit 16

Orbit 16

Orbit Mini

Orbit Mini

Vesicle Prep Pro

Vesicle Prep Pro

GABAA (a1b2g2) - "Rapid agonist applications in precise intervals (GABAA) "

icon pl   Patchliner application note:   logo pdf   (1.5 MB)

 Summary:

HEK-cells expressing GABAA-receptors were investigated with the Patchliner using a stacked application approach for rapid administration of compounds to the patch-clamped cells. The GABAA receptor family is the most important class of inhibitory ion channels involved in synaptic transmission, and are selectively permeable to monovalent anions. They constitute an important therapeutic area for drugs affecting anxiety, sleep and muscle relaxation. As with most ligand gated ion channels, GABAA exhibit receptor desensitization, which is a common phenomenon for ligand gated ion channels. Desensitization can be either exposure time dependent or concentration dependent, or both. Desensitization and recovery kinetics varies from milliseconds to tens of minutes, all depending on receptor type and subunit composition. For rapidly desensitizing ion channels, it is important that compound application is fast, so that the entire ion channel population is exposed to maximum concentration before entering the desensitized state. Exposure time and application intervals are important factors affecting desensitization and recovery from desensitization, to minimize deletrious effects or receptor desensitization. In the experiments presented here, compounds were added to the cells with accurate timing. In addition, a method for brief compound application was developed, allowing 1 s pulses of compound to the patch clamped cells. In this way, receptor desensitization can be minimized, and because of the timed exposures, effects of desensitization.

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