18 results on '"Zhang, Gengshen"'
Search Results
2. Hsa_circ_0008225 inhibits tumorigenesis of glioma via sponging miR-890 and promoting ZMYND11 expression
- Author
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Wang, Xiaoliang, Feng, Hongru, Dong, Wei, Wang, Feng, Zhang, Gengshen, and Wu, Jianliang
- Published
- 2020
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3. Functionalized graphene oxide as a drug carrier for loading pirfenidone in treatment of subarachnoid hemorrhage
- Author
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Yang, Lijun, Wang, Feng, Han, Haie, Yang, Liang, Zhang, Gengshen, and Fan, Zhenzeng
- Published
- 2015
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4. Angiotensin II type 1 receptor deficiency protects against the impairment of blood–brain barrier in a mouse model of traumatic brain injury.
- Author
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Yang, Lijun, Chen, Zeshang, Wan, Xiangdong, Liu, Minghao, Wu, Jianliang, Chen, Yan, Zhang, Gengshen, and Fan, Zhenzeng
- Subjects
BRAIN injuries ,ANGIOTENSIN II ,BLOOD-brain barrier ,AMYLOID beta-protein precursor ,AQUAPORINS - Abstract
Aquaporin 4 (AQP4), usually expressed at astrocytes end-feet, is a main component of the lymph-lymphatic system and promotes paravascular cerebrospinal fluid-interstitial fluid exchange. Moreover, angiotensin II type 1 (AT
1 ) receptor affects amyloid β (Aβ) levels. This study aimed to detect the effect of AT1 receptor deficiency on the blood-brain barrier (BBB) of traumatic brain injury (TBI) mice and the effect on Aβ level and glial lymphatic circulation. TBI model was built using AT1 receptor knockout mice (AT1 -KO) and C57BL/6 mice (wild type, WT). BBB integrity was detected by Evans blue extravasation. The expression of the astrocytic water channel AQP4 and astrocyte activation were evaluated with immunofluorescence. The expressions of amyloid precursor protein (APP), junction protein zonula occludens protein-1 (ZO-1) and occludin in mice brain were detected by Western blot (WB). Aβ levels were assayed by enzyme-linked immunosorbent assay (ELISA). AT1 receptor deficiency defended BBB integrity and rescued occludin and ZO-1 decrease in mice brain induced by TBI. AT1 -KO mice had less increase of APP expression and Aβ 1–42, Aβ 1–40 levels compared to WT mice under TBI. Moreover, AT1 receptor deficiency was found to significantly inhibit AQP4 depolarization after TBI. T1 receptor deficiency attenuated TBI-induced impairments of BBB by rescuing tight junction proteins and inhibited AQP4 polarization, thus improving the function of glymphatic system to enhance interstitial Aβ clearance in TBI mice brain. [ABSTRACT FROM AUTHOR]- Published
- 2023
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5. Resveratrol Rescues the Impairments of Hippocampal Neurons Stimulated by Microglial Over-Activation In Vitro
- Author
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Wang, Feng, Cui, Na, Yang, Lijun, Shi, Lin, Li, Qian, Zhang, Gengshen, Wu, Jianliang, Zheng, Jun, and Jiao, Baohua
- Published
- 2015
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6. Diabetes mitigates the recovery following intracranial hemorrhage in rats
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Fan, Zhenzeng, Yuan, Yunchao, Wang, Feng, Qi, Yuepeng, Han, Haie, Wu, Jianliang, Zhang, Gengshen, and Yang, Lijun
- Published
- 2017
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7. Case Report: Stent Retriever Thrombectomy of Acute Basilar Artery Occlusion via the Type 1 Proatlantal Intersegmental Artery.
- Author
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Zhao, Lei, Yang, Lijun, Liu, Xiaosong, Wang, Xiaoliang, Zhang, Gengshen, and Wu, Jianliang
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BASILAR artery ,ARTERIAL occlusions ,THROMBECTOMY ,VERTEBRAL artery ,ARTERIES - Abstract
Stent retriever thrombectomy (SRT) is one of the most effective methods for the recanalization of acute basilar artery occlusion (ABAO). The proatlantal intersegmental artery (PIA) is a rare carotid-vertebrobasilar anastomosis. Recognition of this rare form of anastomosis is particularly important for the rapid establishment of positive blood flow in patients with ABAO. In this case, the patient had a rare, left type 1 PIA. The right vertebral artery (VA) was tenuous and did not enter the cranium. We performed a thrombectomy of the ABAO by inserting a catheter via the type 1 PIA. The complete recanalization of basilar artery (BA) flow was achieved following two stent retractions; however, the patient eventually died of brain stem hemorrhage. [ABSTRACT FROM AUTHOR]
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- 2022
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8. Omega-3 Polyunsaturated Fatty Acids Alleviate Traumatic Brain Injury by Regulating the Glymphatic Pathway in Mice.
- Author
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Zhang, Erwei, Wan, Xiangdong, Yang, Lijun, Wang, Dong, Chen, Zeshang, Chen, Yan, Liu, Minghao, Zhang, Gengshen, Wu, Jianliang, Han, Haie, and Fan, Zhenzeng
- Subjects
OMEGA-3 fatty acids ,UNSATURATED fatty acids ,TOTAL body irradiation ,BRAIN injuries ,FISH oils ,BLOOD-brain barrier - Abstract
Background: The glymphatic pathway has been shown to be impaired in traumatic brain injury (TBI). Omega-3 polysaturated fatty acids (Omega-3, PUFAs) are involved in the clearance of amyloid-ß through the glymphatic system and this effect is Aquaporin-4 (AQP4) dependent. We hypothesize that Omega-3 PUFAs can alleviate neurological impairment in TBI by protecting the glymphatic pathway. Methods: We pretreated mice with Omega-3 PUFAs rich fish oil and introduced TBI in the mice. Neurological functions were assessed through the modified neurological severity score (mNSS) system and Rota-rod test. Aß42 levels and radioisotope clearance were examined to determine the function of glymphatic system. AQP4 protein and mRNA expressions and its polarity were examined in fish oil treated TBI mice or control mice. Finally, the integrity of blood-brain barrier was determined by Evans blue extravasation and measurement of tight junction proteins (ZO-1 and Occludin) levels. Results: TBI surgery induced significant neurological functional impairment, Omega-3 PUFAs attenuated TBI-induced neurological impairment, as evidenced by reduced mNSS, improved performance in the Rota-rod test. Furthermore, Omega-3 PUFAs improved glymphatic clearance after induction of TBI in mice, reduced Aß42 accumulation, partially restored the clearance of both
3 H-mannitol and14 C-Inulin. Omega-3 PUFAs also suppressed AQP4 expression and partially prevented loss of AQP4 polarity in mice undergoing TBI. Finally, Omega-3 PUFAs protected mice from TBI induced blood-brain barrier disruption. Conclusion: Omaga-3 PUFAs attenuate neurological function by partially restoring the AQP4 dependent glymphatic system in mice with TBI. [ABSTRACT FROM AUTHOR]- Published
- 2020
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9. Effect of hyperbaric oxygen combined with nimodipine on treatment of diffuse brain injury.
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Sun, Jianping, Zheng, Jun, Wang, Feng, Zhang, Gengshen, and Wu, Jianliang
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HYPERBARIC oxygenation ,OXYGEN therapy ,PYRAMIDAL neurons ,BRAIN injuries ,TUMOR necrosis factors - Abstract
The aim of the present study was to was investigate the treatment efficacy of hyperbaric oxygen (HBO) combined with nimodipine on diffuse brain injury. AA total of 80 patients with diffuse brain injury were randomly divided into four groups: Group A, conventional treatment; Group B, conventional treatment + nimodipine; Group C, conventional treatment + HBO therapy and Group D, conventional treatment + nimodipine + HBO therapy. The Glasgow Coma Scale (GCS) score and serum tumor necrosis factor (TNF)-α and interleukin (IL)-1β levels were assessed before treatment and at 8, 24, 48 and 72 h after treatment. The bilateral middle cerebral arterial blood flow velocity (VmMCA) was measured by transcranial Doppler ultrasound. The results indicated that serum TNF-α and IL-1β were significantly decreased in all groups at 24, 48 and 72 h after treatment, compared with 8 h after treatment (P<0.05), with Group D exhibiting the largest decrease. The serum TNF-α, IL-1β and VmMCA peaked at 8 h and gradually decreased over the treatment period. VmMCA was decreased in Group B and D compared with Group A and C, and the decrease rate was higher in Group D compared with Group B (P<0.05). GCS scores were significantly increased in all groups at 24, 48 and 72 h after treatment compared with 8 h after treatment (P<0.05), with Group D exhibiting the largest increase. Serum TNF-α and IL-1β levels were positively correlated with VmMCA (P<0.05) and negatively correlated with GCS (P<0.05). Punctate hemorrhage was observed in all groups on CT before treatment, with a value of 66±3 HU. Punctate hemorrhage was observed to decrease over time in CT images, and CT values were signifi- cantly decreased in all groups at 8, 24, 48 and 72 h compared with before treatment (P<0.05). CT values were significantly lower in group D compared with groups A, B and C (P<0.05) at all time points. Serum TNF-α and IL-1β levels were positively correlated with CT value (P<0.05). In conclusion, HBO combined with nimodipine exhibited increased efficacy in the treatment of brain injury compared with either treatment alone. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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10. Tumor suppressors microRNA-302d and microRNA-16 inhibit human glioblastoma multiforme by targeting NF-κB and FGF2.
- Author
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Wang, Feng, Yang, Lijun, Sun, Jianping, Zheng, Jun, Shi, Lin, Zhang, Gengshen, and Cui, Na
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- 2017
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11. A Novel Technology.
- Author
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Yang, Lijun, Wu, Jianliang, Zhang, Gengshen, Zhao, Zongmao, Fan, Zhenzeng, and Wang, Baozhi
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- 2013
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12. Controlled release of osteopontin and interleukin-10 from modified endovascular coil promote cerebral aneurysm healing.
- Author
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Chen, Jingyi, Yang, Lijun, Chen, Yan, Zhang, Gengshen, and Fan, Zheneng
- Subjects
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OSTEOPONTIN , *PHOSPHOPROTEINS , *MEDICAL care , *INTRACRANIAL aneurysms , *HEALING - Abstract
Cerebral aneurysm is a bulging of the artery inside the brain that results from a weakened or thin area of the artery wall. Ruptured cerebral aneurysm could lead to serious brain damage or even death, thus the proper treatment is essential. Compared with the conventional microsurgical clipping approach, the endovascular coiling treatment has many advantages, however, with a major disadvantage of high recurrence rate. One way to lower the recurrence rate, which has been tried since one decade ago, is to modify the coil to be bioactive and releasing biological molecules to stimulate tissue ingrowth and aneurysm healing. We have identified three candidates including osteopontin (OPN), IL-10 and matrix metallopeptidase 9 (MMP-9) from previous studies and generated platinum coils coated with these proteins in the carrier of poly-DL-lactic glycolic acid (PLGA). We were interested to know whether coils coated with OPN, IL-10 and MMP-9 were able to promote aneurysm healing and we have tested it in the rat carotid aneurysm model. We found that OPN and IL-10 coated coils had shown significant improvement in tissue ingrowth while MMP-9 coated coils failed to enhance tissue ingrowth compared with the control group. Our studies suggested the possible application of OPN and IL-10 coated coils in aneurysm treatment to overcome the recurrence. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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13. Effect of Nrf2 on brain injury induced by hydraulic shock via regulation of mitophagy and apoptosis.
- Author
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Zhang E, Wu T, Zhuo Y, Cui J, Sun S, Wu G, and Zhang G
- Subjects
- Animals, Mice, Apoptosis, Mice, Inbred C57BL, Mice, Knockout, NF-E2-Related Factor 2 genetics, NF-E2-Related Factor 2 metabolism, Brain Injuries, Mitophagy
- Abstract
The specific protective mechanism of mitophagy and Nrf2 in brain injury has not been fully clarified. This study aimed to reveal the effect of Nrf2 on hydraulic shock brain injury in mice, and explore its possible mechanism. Twenty-four Nrf2 knockout (Nrf2-/-) and wild-type mice (WT) of C57BL/6J were randomly divided into two groups: control group (C) and brain injury group (TBI). Hematoxylin-eosin staining (HE) assay was used for the histomorphological observation. The apoptotic state of brain tissue was detected by TUNEL. Mechanical damage in vitro models of glial cells were prepared. The wild-type (WT) and Nrf2 knockout (KO) mice were constructed to investigate the changes of mitophagy and apoptosis-related indicators by Western blotting. The experimental results showed that 24 h after TBI, the tissue structure was highly porous, the cells were highly edema, the neuronal space increased significantly, the neuron degeneration, and the cell vacuolation was obvious. Meanwhile, the number of apoptotic cells and the apoptosis rate of glial cells increased significantly. After injury, the relative expression of Parkin, Pink, Beclin and LC-3II proteins were significantly decreased in all mice. The protein expressions of Caspase3 and Caspase12 were significantly increased. However, in the TBI group, KO mice were more impaired than WT mice. In conclusion, Nrf2 plays a protective role by promoting mitophagy to inhibit apoptosis in the process of brain injury caused by hydraulic shock in mice, which provides a new idea for the effective treatment of brain injury.
- Published
- 2023
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14. Pterostilbene attenuates microglial inflammation and brain injury after intracerebral hemorrhage in an OPA1-dependent manner.
- Author
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Wu Y, Hu Q, Wang X, Cheng H, Yu J, Li Y, Luo J, Zhang Q, Wu J, and Zhang G
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- Animals, Mice, Neuroinflammatory Diseases, Microglia, Inflammation drug therapy, Cerebral Hemorrhage drug therapy, Brain Edema drug therapy, Brain Edema etiology, Brain Injuries drug therapy, Brain Injuries etiology
- Abstract
Microglial activation and subsequent inflammatory responses are critical processes in aggravating secondary brain injury after intracerebral hemorrhage (ICH). Pterostilbene (3', 5'-dimethoxy-resveratrol) features antioxidant and anti-inflammation properties and has been proven neuroprotective. In this study, we aimed to explore whether Pterostilbene could attenuate neuroinflammation after experimental ICH, as well as underlying molecular mechanisms. Here, a collagenase-induced ICH in mice was followed by intraperitoneal injection of Pterostilbene (10 mg/kg) or vehicle once daily. PTE-treated mice performed significantly better than vehicle-treated controls in the neurological behavior test after ICH. Furthermore, our results showed that Pterostilbene reduced lesion volume and neural apoptosis, and alleviated blood-brain barrier (BBB) damage and brain edema. RNA sequencing and subsequent experiments showed that ICH-induced neuroinflammation and microglial proinflammatory activities were markedly suppressed by Pterostilbene treatment. With regard to the mechanisms, we identified that the anti-inflammatory effects of Pterostilbene relied on remodeling mitochondrial dynamics in microglia. Concretely, Pterostilbene reversed the downregulation of OPA1, promoted mitochondrial fusion, restored normal mitochondrial morphology, and reduced mitochondrial fragmentation and superoxide in microglia after OxyHb treatment. Moreover, conditionally deleting microglial OPA1 in mice largely countered the effects of Pterostilbene on alleviating microglial inflammation, BBB damage, brain edema and neurological impairment following ICH. In summary, we provided the first evidence that Pterostilbene is a promising agent for alleviating neuroinflammation and brain injury after ICH in mice, and uncovered a novel regulatory relationship between Pterostilbene and OPA1-mediated mitochondrial fusion., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Wu, Hu, Wang, Cheng, Yu, Li, Luo, Zhang, Wu and Zhang.)
- Published
- 2023
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15. Neuroprotective effect of hydrogen sulfide against glutamate-induced oxidative stress is mediated via the p53/glutaminase 2 pathway after traumatic brain injury.
- Author
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Sun J, Li X, Gu X, Du H, Zhang G, Wu J, and Wang F
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- Animals, Apoptosis drug effects, Brain Edema drug therapy, Brain Edema etiology, Brain Injuries, Traumatic metabolism, Disease Models, Animal, Glutamic Acid pharmacology, Morris Water Maze Test drug effects, Rats, Rats, Sprague-Dawley, Spatial Memory drug effects, Brain Injuries, Traumatic drug therapy, Hydrogen Sulfide therapeutic use, Neuroprotective Agents therapeutic use, Oxidative Stress drug effects, Signal Transduction drug effects, Transaminases metabolism, Tumor Suppressor Protein p53 metabolism
- Abstract
Several reports suggest that hydrogen sulfide (H
2 S) exerts multiple biological and physiological effects on the pathogenesis of traumatic brain injury (TBI). However, the exact molecular mechanism involved in this effect is not yet fully known. In this study, we found that H2 S alleviated TBI-induced motor and spatial memory deficits, brain pathology, and brain edema. Moreover, sodium hydrosulfide (NaHS), an H2 S donor, treatment markedly increased the expression of Bcl-2, while inhibited the expression of Bax and Cleaved caspase-3 in TBI-challenged rats. Tunnel staining also demonstrated these results. Treatment with NaHS significantly reduced the glutamate and glutaminase 2 (GLS-2) protein levels, and glutamate-mediated oxidative stress in TBI-challenged rats. Furthermore, we demonstrated that H2 S treatment inhibited glutamate-mediated oxidative stress through the p53/GLS-2 pathway. Therefore, our results suggested that H2 S protects brain injury induced by TBI through modulation of the glutamate-mediated oxidative stress in the p53/GLS-2 pathway-dependent manner.- Published
- 2021
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16. HMGB1 a-Box Reverses Brain Edema and Deterioration of Neurological Function in a Traumatic Brain Injury Mouse Model.
- Author
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Yang L, Wang F, Yang L, Yuan Y, Chen Y, Zhang G, and Fan Z
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- Animals, Blood-Brain Barrier drug effects, Blood-Brain Barrier immunology, Blood-Brain Barrier pathology, Brain immunology, Brain pathology, Brain Edema immunology, Brain Edema pathology, Brain Injuries, Traumatic immunology, Brain Injuries, Traumatic pathology, Cells, Cultured, Disease Models, Animal, HMGB1 Protein chemistry, HMGB1 Protein immunology, Interleukin-1beta immunology, Male, Mice, Mice, Inbred C57BL, Recombinant Proteins chemistry, Recombinant Proteins immunology, Recombinant Proteins therapeutic use, Brain drug effects, Brain Edema drug therapy, Brain Injuries, Traumatic drug therapy, HMGB1 Protein therapeutic use
- Abstract
Background/aims: Traumatic brain injury (TBI) is a complex neurological injury in young adults lacking effective treatment. Emerging evidences suggest that inflammation contributes to the secondary brain injury following TBI, including breakdown of the blood brain barrier (BBB), subsequent edema and neurological deterioration. High mobility group box-1 (HMGB1) has been identified as a key cytokine in the inflammation reaction following TBI. Here, we investigated the therapeutic efficacy of HMGB1 A-box fragment, an antagonist competing with full-length HMGB1 for receptor binding, against TBI., Methods: TBI was induced by controlled cortical impact (CCI) in adult male mice. HMGB1 A-box fragment was given intravenously at 2 mg/kg/day for 3 days after CCI. HMGB1 A-box-treated CCI mice were compared with saline-treated CCI mice and sham mice in terms of BBB disruption evaluated by Evan's blue extravasation, brain edema by brain water content, cell death by propidium iodide staining, inflammation by Western blot and ELISA assay for cytokine productions, as well as neurological functions by the modified Neurological Severity Score, wire grip and beam walking tests., Results: HMGB1 A-box reversed brain damages in the mice following TBI. It significantly reduced brain edema by protecting integrity of the BBB, ameliorated cell degeneration, and decreased expression of pro-inflammatory cytokines released in injured brain after TBI. These cellular and molecular effects were accompanied by improved behavioral performance in TBI mice. Notably, HMGB1 A-box blocked IL-1β-induced HMGB1 release, and preferentially attenuated TLR4, Myd88 and P65 in astrocyte cultures., Conclusion: Our data suggest that HMGB1 is involved in CCI-induced TBI, which can be inhibited by HMGB1 A-box fragment. Therefore, HMGB1 A-box fragment may have therapeutic potential for the secondary brain damages in TBI., (© 2018 The Author(s). Published by S. Karger AG, Basel.)
- Published
- 2018
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17. Nuclear translocation of fibroblast growth factor-2 (FGF2) is regulated by Karyopherin-β2 and Ran GTPase in human glioblastoma cells.
- Author
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Wang F, Yang L, Shi L, Li Q, Zhang G, Wu J, Zheng J, and Jiao B
- Subjects
- Active Transport, Cell Nucleus, Cell Line, Tumor, Cell Nucleus metabolism, Cell Proliferation, Cytosol metabolism, Enzyme-Linked Immunosorbent Assay, Gene Expression Regulation, Neoplastic, Guanosine 5'-O-(3-Thiotriphosphate) metabolism, Guanosine Diphosphate analogs & derivatives, Guanosine Diphosphate metabolism, Humans, Molecular Weight, RNA Interference, RNA, Small Interfering metabolism, Thionucleotides metabolism, Transfection, Central Nervous System Neoplasms metabolism, Fibroblast Growth Factor 2 metabolism, Glioblastoma metabolism, beta Karyopherins metabolism, ran GTP-Binding Protein metabolism
- Abstract
Human glioblastoma multiforme (GBM) is the most malignant tumor of the central nervous system (CNS). Fibroblast growth factor-2 (FGF2) belongs to the FGF superfamily and functions as a potential oncoprotein in GBM. FGF2 has low molecular weight (18K) and high molecular weight (HMW) isoforms. Nuclear accumulation of HMW-FGF2 strongly promotes glioblastoma cell proliferation, yet mechanism governing such cellular distribution remains unexplored. We investigated the mechanisms regulating FGF2 cellular localization in T98G human brain glioblastoma cells. We found HMW-FGF2, but not 18K-FGF2, is primarily located in the nucleus and interacts with nuclear transport protein Karyopherin-β2/Transportin (Kapβ2). SiRNA-directed Kapβ2 knockdown significantly reduced HMW-FGF2's nuclear translocation. Moreover, inhibiting Ran GTPase activity also resulted in decreased HMW-FGF2 nuclear accumulation. Proliferation of T98G cells is greatly enhanced with transfections HMW-FGF2. Decreased PTEN expression and activated Akt signaling were observed upon HMW-FGF2 overexpression and might mediate pro-survival effect of FGF2. Interestingly, addition of nuclear localization signal (NLS) to 18K-FGF2 forced its nuclear import and dramatically increased cell proliferation and Akt activation. These findings demonstrated for the first time the molecular mechanisms for FGF2's nuclear import, which promotes GBM cell proliferation and survival, providing novel insights to the development of GBM treatments.
- Published
- 2015
- Full Text
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18. A novel technology: percutaneous injection of fibrin glue as a treatment for frontal sinus cerebrospinal fluid rhinorrhea.
- Author
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Yang L, Wu J, Zhang G, Zhao Z, Fan Z, and Wang B
- Subjects
- Accidents, Traffic, Adult, Cerebrospinal Fluid Rhinorrhea diagnostic imaging, Craniotomy, Female, Frontal Sinus diagnostic imaging, Frontal Sinus surgery, Humans, Male, Middle Aged, Skull Fractures diagnostic imaging, Skull Fractures surgery, Tomography, X-Ray Computed, Treatment Outcome, Cerebrospinal Fluid Rhinorrhea etiology, Cerebrospinal Fluid Rhinorrhea surgery, Fibrin Tissue Adhesive therapeutic use, Frontal Sinus injuries, Skull Fractures complications
- Abstract
In this study, we examined the effectiveness of percutaneous injected fibrin glue as a treatment for frontal sinus cerebrospinal fluid (CSF) rhinorrhea in a series of 4 cases. All 4 patients had fracture in the posterior wall of the frontal sinus. The anterior wall of the frontal sinus was punctured following high-resolution computed tomography imaging. In 3 out of 4 patients with defective skull due to prior frontal craniotomy, direct percutaneous puncture of the frontal sinus was used. Fibrin glue was injected to close the fistula and to seal the rhinorrhea. Surgery procedures lasted for 15-35 minutes (average 27.6 min). Rhinorrhea was stopped in all patients after the surgery, with no recurrence at a 10-month follow-up visit. In 1 case, the glue was expelled by coughing at 2 days after the surgery but was completely stopped with no recurrence after a second attempt. One patient with no recurrence at a 10-month follow-up died of tumor relapse at 12 months. In summary, fibrin glue could be used as a novel treatment for frontal sinus CSF rhinorrhea.
- Published
- 2013
- Full Text
- View/download PDF
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