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Altering potassium channel activity to investigate morphine tolerance and opiate induced hypersensitivity

改变钾通道活性以研究吗啡耐受性和阿片类药物引起的超敏反应

基本信息

批准号：
10349435
负责人：
Amanda Helen Klein
金额：
$ 14.2万
依托单位：
UNIVERSITY OF MINNESOTA
依托单位国家：
美国
项目类别：
财政年份：
2018
资助国家：
美国
起止时间：
2018-03-01 至 2023-02-28
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/10349435
关键词：
ATP sensitive potassium channel complex Absence of pain sensation Action Potentials Adenylate Cyclase Afferent Neurons Aftercare Analgesics Animals Attenuated Award Behavioral CRSP3 gene Calcium Chronic Clinic Clinical effectiveness Data Development Development Plans Dose Drug Delivery Systems Educational workshop Electrophysiology (science)Future Goals Histologic Human Hyperalgesia Hypersensitivity Individual International Lead Ligation Literature Location Maintenance Mechanics Mediator of activation protein Medical Mentored Research Scientist Development Award Mentors Mentorship Methods Minnesota Morphine Mus Nerve Nerve Fibers Nervous system structure Neuraxis Neurons Neuropathy Nociceptors Opioid Opioid Analgesics Opioid Receptor Pain Threshold Pathway interactions Peripheral Peripheral Nerves Peripheral Nervous System Pharmaceutical Preparations Pharmacologic Substance Pharmacy (field)Pharmacy facility Phosphotransferases Potassium Channel Preparation Property Receptor Activation Research Research Personnel Rodent Role Science Sedation procedure Signal Pathway Skin Slice Spinal Cord Spinal nerve structure System Training Universities Withdrawal Symptom abuse liability addiction associated symptom base career career development chronic pain chronic pain management chronic pain patient chronic pain relief chronic painful condition desensitization experience experimental study imaging modality imaging study improved morphine tolerance mu opioid receptors nervous system imaging novel opiate tolerance opioid exposure opioid therapy opioid use opioid withdrawal pain model pain symptom painful neuropathy prescription opioid professor receptive field receptor reduce symptoms side effect skills theories therapeutic target

项目摘要

7. Project Summary/Abstract This proposal is for a K01 Mentored Research Scientist Development Award for Dr. Amanda Klein, Assistant Professor in the Department of Pharmacy Practice and Pharmaceutical Sciences at the University of Minnesota. The K01 award will provide Dr. Klein with the additional training and experience necessary to become an independent investigator studying the effects of opioid tolerance and withdrawal in the peripheral and central nervous system. Dr. Carolyn Fairbanks will serve as the primary mentor with expertise in drug delivery methods and opioid tolerance, and will oversee the training plan. Dr. Lucy Vulchanova will provide additional mentorship and has extensive experience in central nervous system imaging methods during chronic pain conditions. The proposed career development plan includes focused workshops and seminars, mentorship from a group of established researchers, and the attainment novel research skills. The long term goal of this K01 career award is effectively study the mechanisms that lead to opioid tolerance and withdrawal and to establish therapeutic targets for chronic pain patients current on opioid medications. Opioid therapy has been shown to be effective in reducing chronic pain in the clinic; unfortunately, long term treatment has negative consequences, including sedation, tolerance, abuse potential and opioid induced hyperalgesia (OIH) when treatment is stopped. Opioid tolerance is potentially due to receptor desensitization and/or a functional uncoupling of opioid receptors from their effector systems. Previous literature suggests that mechanisms of opioid tolerance, and OIH after opioid treatment has ceased, can be driven by changes in the peripheral nervous system (PNS) and central nervous system (CNS). Potassium channels, such as ATP sensitive potassium channels (KATP channels) are expressed on peripheral nociceptors and second order neurons, and contribute to the analgesic properties of opioids as downstream effectors. The proposed behavioral, electrophysiological, and imaging methods are essential in order to understand the role of KATP channels subtypes before and after opioid tolerance. The research objectives of this K01 award are to: 1) Identify the involvement of KATP channels in the PNS and CNS in the maintenance of neuropathic pain during morphine tolerance and 2) Quantify the changes in location, expression and function of KATP channel subtypes in peripheral (nerve fibers) versus central (spinal cord) nervous system before and after prolonged opioid exposure. Preliminary data suggest that a decrease in activity of specific KATP channel subtypes in the PNS versus the CNS contribute to opioid tolerance. Future experiments will further investigate the diverse intracellular pathways leading to changes in KATP channel expression and function in the PNS and CNS. The ultimate goal is to use KATP channel targeting pharmaceutics to improve chronic pain conditions while alleviating tolerance and OIH in humans and therefore decrease the adverse side effects seen with many existing opioid therapies.

7. 项目总结/文摘

项目成果

期刊论文数量（7）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Reduced activity of adenylyl cyclase 1 attenuates morphine induced hyperalgesia and inflammatory pain in mice.

DOI：
10.3389/fphar.2022.937741
发表时间：
2022
期刊：
FRONTIERS IN PHARMACOLOGY
影响因子：
5.6
作者：
Johnson, Kayla;Doucette, Alexis;Edwards, Alexis;Verdi, Aleeya;McFarland, Ryan;Hulke, Shelby;Fowler, Amanda;Watts, Val J.;Klein, Amanda H.
通讯作者：
Klein, Amanda H.

KATP Channel Prodrugs Reduce Inflammatory and Neuropathic Hypersensitivity, Morphine-Induced Hypersensitivity, and Precipitated Withdrawal in Mice.

KATP 通道前药可减轻小鼠的炎症和神经性超敏反应、吗啡引起的超敏反应和突然戒断反应。

DOI：
10.1124/jpet.122.001522
发表时间：
2023
期刊：
The Journal of pharmacology and experimental therapeutics
影响因子：
0
作者：
Doucette,Alexis;Johnson,Kayla;Hulke,Shelby;Mujteba,Sunna;Miller,Elena;Meyer,Belle;Dosa,PeterI;Klein,AmandaH
通讯作者：
Klein,AmandaH

Inhibition of the phosphoinositide 3-kinase-AKT-cyclic GMP-c-Jun N-terminal kinase signaling pathway attenuates the development of morphine tolerance in a mouse model of neuropathic pain.