Transforming growth factor beta induces sensory neuronal hyperexcitability, and contributes to pancreatic pain and hyperalgesia in rats with chronic pancreatitis
| العنوان: | Transforming growth factor beta induces sensory neuronal hyperexcitability, and contributes to pancreatic pain and hyperalgesia in rats with chronic pancreatitis |
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| المؤلفون: | Pankaj J. Pasricha, Reetesh K. Pai, Kshama R. Mehta, Liansheng Liu, Yaohui Zhu, Bende Zou, Mohan Shenoy, Xinmin Simon Xie, Tugba Colak |
| المصدر: | Molecular Pain, Vol 8, Iss 1, p 65 (2012) Molecular Pain |
| بيانات النشر: | SAGE Publishing, 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Male, medicine.medical_specialty, Sensory neurons, Neuronal sensitization, Sensory Receptor Cells, Stimulation, Chronic pain, Rats, Sprague-Dawley, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, Fibrosis, Ganglia, Spinal, Pancreatitis, Chronic, Internal medicine, medicine, lcsh:Pathology, Animals, Pancreatitis, chronic, Cells, Cultured, Kv channels, 030304 developmental biology, 0303 health sciences, biology, business.industry, Research, Transforming growth factor beta, medicine.disease, Immunohistochemistry, Rats, 3. Good health, Electrophysiology, Anesthesiology and Pain Medicine, Endocrinology, Nociception, Hyperalgesia, biology.protein, Kv1.4 Potassium Channel, Molecular Medicine, Pancreatitis, medicine.symptom, business, Neuroscience, Chronic pancreatitis, 030217 neurology & neurosurgery, lcsh:RB1-214 |
| الوصف: | Background:Transforming growth factor beta (TGFβ) is upregulated in chronic inflammation, where it plays a key role in wound healing and promoting fibrosis. However, little is known about the peripheral effects of TGFβ on nociception.Methods:We tested the in vitro effects of TGFβ1 on the excitability of dorsal root ganglia (DRG) neurons and the function of potassium (K) channels. We also studied the effects of TGFβ1 infusion on pain responses to noxious electrical stimulation in healthy rats as well as the effects of neutralization of TGFβ1 on evoked pain behaviors in a rat model of chronic pancreatitis.Results:Exposure to TGFβ1 in vitro increased sensory neuronal excitability, decreased voltage-gated A-type K+currents (IA) and downregulated expression of the Kv1.4 (KCNA4) gene. Further TGFβ1 infusion into the naïve rat pancreas in vivo induces hyperalgesia and conversely, neutralization of TGFβ1 attenuates hyperalgesia only in rats with experimental chronic pancreatitis. Paradoxically, TGFβ1 neutralization in naïve rats results in pancreatic hyperalgesia.Conclusions:TGFβ1 is an important and complex modulator of sensory neuronal function in chronic inflammation, providing a link between fibrosis and nociception and is a potentially novel target for the treatment of persistent pain associated with chronic pancreatitis. |
| اللغة: | English |
| تدمد: | 1744-8069 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afde8a8a222d4dbf78d4df29a8e171ecTest http://www.molecularpain.com/content/8/1/65Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....afde8a8a222d4dbf78d4df29a8e171ec |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17448069 |
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