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P2X7 Receptor-Induced Bone Cancer Pain by Regulating Microglial Activity via NLRP3/IL-1beta Signaling
CONCLUSION: These findings suggest that targeting the microglial P2X7R activated NLRP3/IL-1beta signaling pathway could serve as a potential strategy for BCP treatment.PMID:36375190
Source: Pain Physician - November 14, 2022 Category: Anesthesiology Authors: Ping Wu Xiaoqi Wu Guohua Zhou Yin Wang Xiaojun Liu Run Lv YanSong Liu Qingping Wen Source Type: research

Spinal Nrf2 translocation may inhibit neuronal NF ‐κB activation and alleviate allodynia in a rat model of bone cancer pain
This study aimed to test the hypothesis that BCP induces the transfer of Nrf2 from the cytoplasm to the nucleus and further promotes nuclear transcription to activate heme oxygenase-1 (HO-1) and inhibit the activation of nuclear factor-kappa B (NF- κB) signalling, ultimately regulating the neuroinflammatory response. Von-Frey was used for behavioural analysis in BCP rats, while western blotting, real-time quantitative PCR (RT-PCR), and enzyme-linked immunosorbent assay (ELISA) were used to detect molecular expression changes, and immunofluore scence was used to detect cellular localization. We demonstrated that BCP induce...
Source: Journal of Neurochemistry - July 14, 2021 Category: Neuroscience Authors: Jie Fu, Chaobo Ni, Hua ‐Dong Ni, Long‐Sheng Xu, Qiu‐Li He, Huan Pan, Dong‐Dong Huang, Yan‐Bao Sun, Ge Luo, Ming‐Juan Liu, Ming Yao Tags: ORIGINAL ARTICLE Source Type: research

i-Fect Delivers circRNA and miRNA
Blocks Bone Cancer PainAltered expression of circular RNA (circRNA) is recognized as a contributor to malignant pain where microRNA (miRNA) exerts an essential effect. Researchers used ouri-FectTMTransfection Kit to knock them down. Zhongqi Zhang, Xiaoxia Zhang, Yanjing Zhang, Jiyuan Li, Zumin Xing. Yiwen Zhang.Spinal circRNA-9119 Suppresses Nociception by Mediating the miR-26a-TLR3 Axis in a Bone Cancer Pain Mouse Model. Spinal circRNA-9119 Suppresses Nociception by Mediating the miR-26a-TLR3 Axis in a Bone Cancer Pain Mouse Model. Journal of Molecular Neuroscience. pp 1 –10Intrathecal Administration of miRNA and circRN...
Source: Neuromics - August 4, 2019 Category: Neuroscience Tags: Bone Cancer Pain circRNA iFect miRNA Transfection Transfection Reagents Source Type: news

AAV-mediated siRNA against TRPV1 reduces nociception in a rat model of bone cancer pain.
Conclusions: Knockdown of TRPV1 effectively ameliorated mechanical allodynia and thermal hyperalgesia induced by TCI. Our data demonstrated that modulate the expression of TRPV1 in the spinal cord could be a potential therapeutic approach for bone cancer pain. PMID: 31296147 [PubMed - as supplied by publisher]
Source: Neurological Research - July 13, 2019 Category: Neurology Tags: Neurol Res Source Type: research

The short interference RNA (siRNA) targeting NMUR2 relieves nociception in a bone cancer pain model of rat through PKC-ERK and PI3K-AKT pathways.
CONCLUSION: si-NMUR2 alleviates BCP via inactivation of PKC/ERK and PI3K/AKT signal pathways. PMID: 30914203 [PubMed - as supplied by publisher]
Source: Biochemical and Biophysical Research communications - March 22, 2019 Category: Biochemistry Authors: Peng S, Lu Y, Li P, Liu P, Shi X, Liu C, Zhang Y, Liu S, Wang J Tags: Biochem Biophys Res Commun Source Type: research

i-Fect Deliver Plasmids to the CNS
Important for Gene Expression Studies.I have posted many examples of how our customers usei-FectTM  and otherTransfection Solutions for Gene Manipulation Studies. There are also manypublications.Here we feature how i-Fect was used to delivery plasmids to the CNS: Sara Elramah, Mar ía José López-González, Matthieu Bastide, Florence Dixmérias, Olivier Roca-Lapirot, Anne-Cécile Wielanek-Bachelet, Anne Vital, Thierry Leste-Lasserre, Alexandre Brochard, Marc Landry& Alexandre Favereaux.Spinal miRNA-124 regulates synaptopodin and nociception in an animal model of bone cancer pain. Scientific Reports 7, A...
Source: siRNA and DsiRNA Transfection Efficiency - September 21, 2017 Category: Neuroscience Tags: C iFect Plasmid Transfection Plasmid Vector shRNA plasmids Source Type: news

CREB-regulated transcription coactivator 1 enhances CREB-dependent gene expression in spinal cord to maintain the bone cancer pain in mice
Conclusions Upregulation of CRTC1 enhancing CREB-dependent gene transcription in spinal cord may play an important role in bone cancer pain. Inhibition of spinal CRTC1 expression reduced bone cancer pain. Interruption to the positive feedback circuit between CREB/CRTC1 and its targets may contribute to the analgesic effects. These findings may provide further insight into the mechanisms and treatment of bone cancer pain.
Source: Molecular Pain - April 7, 2016 Category: Molecular Biology Authors: Liang, Y., Liu, Y., Hou, B., Zhang, W., Liu, M., Sun, Y.-E., Ma, Z., Gu, X. Tags: Research Article Source Type: research

Positive feedback regulation between microRNA‐132 and CREB in spinal cord contributes to bone cancer pain in mice
ConclusionsThese findings suggest that activation of spinal CREB/CRTC1 signalling may play an important role in bone cancer pain. Interruption to the positive feedback regulation between CREB/CRTC1 and its target gene miR‐132 can effectively relieved the bone cancer‐induced mechanical allodynia and spontaneous pain. What does this study add?The positive feedback regulation between CREB/CRTC1 and its target gene miR‐132 in spinal cord plays an important role in bone cancer pain.
Source: European Journal of Pain - February 26, 2016 Category: Anesthesiology Authors: B. Hou, X. Cui, Y. Liu, W. Zhang, M. Liu, Y.E. Sun, Z. Ma, X. Gu Tags: Original Article Source Type: research

Positive feedback regulation between microRNA ‐132 and CREB in spinal cord contributes to bone cancer pain in mice
ConclusionsThese findings suggest that activation of spinal CREB/CRTC1 signalling may play an important role in bone cancer pain. Interruption to the positive feedback regulation between CREB/CRTC1 and its target gene miR‐132 can effectively relieved the bone cancer‐induced mechanical allodynia and spontaneous pain. What does this study add?The positive feedback regulation between CREB/CRTC1 and its target gene miR‐132 in spinal cord plays an important role in bone cancer pain.
Source: European Journal of Pain - February 25, 2016 Category: Anesthesiology Authors: B. Hou, X. Cui, Y. Liu, W. Zhang, M. Liu, Y.E. Sun, Z. Ma, X. Gu Tags: Original Article Source Type: research

P2X4 receptor in the dorsal horn partially contributes to brain‐derived neurotrophic factor oversecretion and toll‐like receptor‐4 receptor activation associated with bone cancer pain
Previous studies have suggested that the microglial P2X7 purinoceptor is involved in the release of tumor necrosis factor‐α (TNFα) following activation of toll‐like receptor‐4 (TLR4), which is associated with nociceptive behavior. In addition, this progress is evoked by the activation of the P2X4 purinoceptor (P2X4R). Although P2X4R is also localized within spinal microglia in the dorsal horn, little is known about its role in cancer‐induced bone pain (CIBP), which is in some ways unique. With the present rat model of CIBP, we demonstrate a critical role of the microglial P2X4R in the enhanced nociceptive transmi...
Source: Journal of Neuroscience Research - July 1, 2014 Category: Neuroscience Authors: Xiao‐hong Jin, Li‐Na Wang, Jian‐Ling Zuo, Jian‐Ping Yang, Si‐lan Liu Tags: Research Article Source Type: research

Role of ATP-sensitive potassium channels in modulating nociception in rat model of bone cancer pain.
Abstract Bone cancer pain is a major clinical problem and remains difficult to treat. ATP-sensitive potassium (KATP) channels may be involved in regulating nociceptive transmission at the spinal cord level. We determined the role of spinal KATP channels in the control of mechanical hypersensitivity in a rat model of bone cancer pain. The rat model of bone cancer pain was induced by implanting rat mammary gland carcinoma cells (Walker256) into the tibias. KATP modulators (pinacidil and glibenclamide) or the specific Kir6.2-siRNA were injected via an intrathecal catheter. The mechanical withdrawal threshold of rats ...
Source: Brain Research - January 27, 2014 Category: Neurology Authors: Xia H, Zhang D, Yang S, Wang Y, Xu L, Wu J, Ren J, Yao W, Fan L, Zhang C, Tian Y, Pan HL, Wang X Tags: Brain Res Source Type: research

Gelsemine, a principal alkaloid from Gelsemium sempervirens Ait., exhibits potent and specific antinociception in chronic pain by acting at spinal α3 glycine receptors
TOC summary: Gelsemine produces potent and specific antinociception in chronic pain states by activating spinal α3 glycine receptors without inducing tolerance.Abstract: The present study examined the antinociceptive effects of gelsemine, the principal alkaloid in Gelsemium sempervirens Ait. A single intrathecal injection of gelsemine produced potent and specific antinociception in formalin-induced tonic pain, bone cancer-induced mechanical allodynia, and spinal nerve ligation-induced painful neuropathy. The antinociception was dose-dependent, with maximal inhibition of 50% to 60% and ED50 values of 0.5 to 0.6μg. Multipl...
Source: Pain - July 24, 2013 Category: Anesthesiology Authors: Jing-Yang Zhang, Nian Gong, Jin-Lu Huang, Ling-Chen Guo, Yong-Xiang Wang Tags: Research papers Source Type: research