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Mu Q, Yao K, Syeda MZ, Wan J, Cheng Q, You Z, Sun R, Zhang Y, Zhang H, Lu Y, Luo Z, Li Y, Liu F, Liu H, Zou X, Zhu Y, Peng K, Huang C, Chen X, Tang L. Neutrophil Targeting Platform Reduces Neutrophil Extracellular Traps for Improved Traumatic Brain Injury and Stroke Theranostics. Adv Sci (Weinh) 2024:e2308719. [PMID: 38520727 DOI: 10.1002/advs.202308719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/22/2024] [Indexed: 03/25/2024]
Abstract
Traumatic brain injuries (TBI) and stroke are major causes of morbidity and mortality in both developing and developed countries. The complex and heterogeneous pathophysiology of TBI and cerebral ischemia-reperfusion injury (CIRI), in addition to the blood-brain barrier (BBB) resistance, is a major barrier to the advancement of diagnostics and therapeutics. Clinical data showed that the severity of TBI and stroke is positively correlated with the number of neutrophils in peripheral blood and brain injury sites. Furthermore, neutrophil extracellular traps (NETs) released by neutrophils correlate with worse TBI and stroke outcomes by impairing revascularization and vascular remodeling. Therefore, targeting neutrophils to deliver NETs inhibitors to brain injury sites and reduce the formation of NETs can be an optimal strategy for TBI and stroke therapy. Herein, the study designs and synthesizes a reactive oxygen species (ROS)-responsive neutrophil-targeting delivery system loaded with peptidyl arginine deiminase 4 (PAD4) inhibitor, GSK484, to prevent the formation of NETs in brain injury sites, which significantly inhibited neuroinflammation and improved neurological deficits, and improved the survival rate of TBI and CIRI. This strategy may provide a groundwork for the development of targeted theranostics of TBI and stroke.
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Affiliation(s)
- Qingchun Mu
- Gaozhou People's Hospital, Maoming, 525200, China
| | - Kai Yao
- Department of Neurosurgery, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Madiha Zahra Syeda
- Gaozhou People's Hospital, Maoming, 525200, China
- St. Michael's Hospital, Fully Affiliated Hospital of University of Toronto, Toronto, Ontario, M5B 1W8, Canada
| | - Jinlong Wan
- Gaozhou People's Hospital, Maoming, 525200, China
| | - Qian Cheng
- Basic Medical College, Guilin Medical University, Guilin, 541199, China
| | - Zhen You
- Liangzhu Laboratory, Zhejiang University, 1369 West Wenyi Road, Hangzhou, 311121, China
| | - Rui Sun
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou, 510515, China
| | - Yufei Zhang
- Basic Medical College, Guilin Medical University, Guilin, 541199, China
| | - Huamiao Zhang
- Department of Pharmacy, Center for Regeneration and Aging Medicine, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China
| | - Yuting Lu
- Department of Pharmacy, Center for Regeneration and Aging Medicine, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China
| | - Zhicheng Luo
- Gaozhou People's Hospital, Maoming, 525200, China
| | - Yang Li
- Department of Pharmacy, Center for Regeneration and Aging Medicine, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China
| | - Fuyao Liu
- Key Laboratory for Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Huiping Liu
- Department of Pharmacy, Center for Regeneration and Aging Medicine, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China
| | - Xinyu Zou
- Gaozhou People's Hospital, Maoming, 525200, China
| | - Yanfen Zhu
- Department of Pharmacy, Center for Regeneration and Aging Medicine, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China
| | - Kesong Peng
- Department of Pharmacy, Center for Regeneration and Aging Medicine, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China
| | | | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and Engineering, National University of Singapore, Singapore, 119074, Singapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore
- Nanomedicine Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Longguang Tang
- Department of Pharmacy, Center for Regeneration and Aging Medicine, the Fourth Affiliated Hospital of School of Medicine, and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, 322000, China
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Syeda MZ, Hong T, Huang C, Huang W, Mu Q. B cell memory: from generation to reactivation: a multipronged defense wall against pathogens. Cell Death Discov 2024; 10:117. [PMID: 38453885 PMCID: PMC10920759 DOI: 10.1038/s41420-024-01889-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/20/2024] [Accepted: 02/26/2024] [Indexed: 03/09/2024] Open
Abstract
Development of B cell memory is a conundrum that scientists are still exploring. Studies have been conducted in vitro and using advanced animal models to elucidate the mechanism underlying the generation of memory B cells (MBCs), the precise roles of MBCs against pathogens, and their protective functions against repeated infections throughout life. Lifelong immunity against invading diseases is mainly the result of overcoming a single infection. This protection is largely mediated by the two main components of B cell memory-MBCs and long-lived plasma cells (PCs). The chemical and cellular mechanisms that encourage fat selection for MBCs or long-lived PCs are an area of active research. Despite the fact that nearly all available vaccinations rely on the capacity to elicit B-cell memory, we have yet to develop successful vaccines that can induce broad-scale protective MBCs against some of the deadliest diseases, including malaria and AIDS. A deeper understanding of the specific cellular and molecular pathways that govern the generation, function, and reactivation of MBCs is critical for overcoming the challenges associated with vaccine development. Here, we reviewed literature on the development of MBCs and their reactivation, interaction with other cell types, strategies against invading pathogens, and function throughout life and discussed the recent advances regarding the key signals and transcription factors which regulate B cell memory and their relevance to the quest for vaccine development.
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Affiliation(s)
- Madiha Zahra Syeda
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China
- School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Tu Hong
- The First Affiliated Hospital, Zhejiang University, School of Medicine, 310058, Hangzhou, China
| | - Chunming Huang
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China.
| | - Wenhua Huang
- School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Qingchun Mu
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China.
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Lv Y, Liu Z, Deng L, Xia S, Mu Q, Xiao B, Xiu Y, Liu Z. Hesperetin promotes bladder cancer cells death via the PI3K/AKT pathway by network pharmacology and molecular docking. Sci Rep 2024; 14:1009. [PMID: 38200039 PMCID: PMC10781778 DOI: 10.1038/s41598-023-50476-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
Patients with bladder cancer (BLCA) still show high recurrence after surgery and chemotherapy. Hesperetin (HE), as a natural compound, has attracted researchers' attention due to its low toxicity and easy access. However, the inhibitory effect of HE on BLCA remains unknown. The hub genes and enrichment pathways regulated by HE in the treatment of BLCA were predicted by network pharmacology. The molecular docking of HE and hub proteins was visualized. Colony and CCK8 assays were used to test cell proliferation, and BLCA migration was confirmed by transwell and wound healing assays. In addition, the occurrence of apoptosis and ferroptosis was demonstrated by Hoechst staining, transmission electron microscopy (TEM) and ROS (reactive oxygen species) assay. Western Blotting was performed to validate the hub proteins, target functions and pathways. SRC, PIK3R1 and MAPK1 were identified as hub targets for HE in BLCA, involving the PI3k/AKT pathway. Furthermore, HE inhibited the proliferation and migration of BLCA cells. The MMP2/MMP9 proteins were significantly inhibited by HE. The increased expression of Bax and cleaved caspase-3 indicated that HE could promote BLCA cell apoptosis. In addition, Hoechst staining revealed concentrated and illuminated apoptotic nuclei. The activation of ROS and the decline of GPX4 expression suggested that HE might induce ferroptosis as an anti-BLCA process. Shrunk mitochondria and apoptotic bodies were observed in BLCA cells treated with HE, with reduced or absent mitochondrial cristae. We propose for the first time that HE could inhibit the proliferation and migration of BLCA cells and promote apoptosis and ferroptosis. HE may act by targeting proteins such as SRC, PIK3R1 and MAPK1 and the PI3K/AKT pathway.
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Affiliation(s)
- Yue Lv
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Harbin, 150000, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150000, Heilongjiang, China
| | - Zhonghao Liu
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Harbin, 150000, Heilongjiang, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, 150000, Heilongjiang, China
| | - Leihong Deng
- Department of Ultrasound Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Shunyao Xia
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Harbin, 150000, Heilongjiang, China
| | - Qingchun Mu
- Department of Neurosurgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311, China
| | - Bang Xiao
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Harbin, 150000, Heilongjiang, China
| | - Youcheng Xiu
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Harbin, 150000, Heilongjiang, China
| | - Zan Liu
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, 23 Postal Street, Harbin, 150000, Heilongjiang, China.
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Mu Q, Zhou B. [Progress of researches on molecular mechanisms underlying helminth infection-mediated type 1/2 host immune responses]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:534-538. [PMID: 38148546 DOI: 10.16250/j.32.1374.2023101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Helminth infections are widespread worldwide, and pose a serious threat to human health and animal husbandry development. Understanding of helminth-host interactions is critical to effective control and ultimate eradication of helminthiasis. Following host infections, helminth infections firstly initiate innate immune responses and then mediate adaptive immune responses. Type 1 immune responses are predominant at early stage of helminth infections, which mainly play anti-infective actions, and type 2 immune responses are predominant at late stage of infections, which are associated with helminth immune evasion and aggravation of tissue damages. This review summarizes the progress of researches on type 1/2 immune responses-associated signaling pathways mediated by helminth infections in hosts.
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Affiliation(s)
- Q Mu
- Department of Parasitology, Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - B Zhou
- Department of Parasitology, Zunyi Medical University, Zunyi, Guizhou 563000, China
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Chen X, Guo H, Zhang J, Ye J, Wang S, Jiang H, Mu Q, Wang X. En Bloc Resection for Spinal Cord Hemangioblastomas: Surgical Technique and Clinical Outcomes. J Neurol Surg A Cent Eur Neurosurg 2023. [PMID: 37992732 DOI: 10.1055/s-0043-1776707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
BACKGROUND Spinal cord hemangioblastomas are rare benign and highly vascular tumors that develop either sporadically or as part of von Hippel-Lindau (VHL) disease. Generally, complete resection without significant neurologic deficit remains considerably challenging due to the risk of massive bleeding. The current study therefore aimed to describe en bloc resection of spinal cord hemangioblastomas according to the typical anatomical structures of peripheral lesions and evaluate the neurofunctional prognosis of this technique. METHODS A total of 39 spinal cord hemangioblastomas from a series of 19 patients who underwent en bloc resection were retrospectively analyzed. In all cases, clinical and radiologic characteristics, as well as surgical tenets, were retrospectively determined and analyzed. Short- and long-term outcomes were analyzed using the McCormick grade and Odom's criteria. Factors significantly associated with poor neurologic function after en bloc resection were also determined. RESULTS All 39 spinal cord hemangioblastomas, including 28 intramedullary, 2 intramedullary-extramedullary, and 9 extramedullary lesions, were located dorsally or dorsolaterally (100.0%). The most common lesion location was the thoracic segment (53.8%), with most of the lesions being accompanied by syringomyelia (94.7%). Long-term follow-up (mean: 103 ± 50.4 months) for prognosis determination revealed that 88.2% (15/17) of all cases had stable or improved neurofunctional outcomes according to the McCormick grade and Odom's criteria. Only one case with VHL disease developed recurrence 4 years after surgery. Additionally, statistical analysis showed that VHL disease was an independent prognostic factor associated with deteriorating neurologic function (p = 0.015). CONCLUSIONS En bloc resection facilitated satisfactory long-term functional outcomes in patients with spinal cord hemangioblastomas. Given that VHL disease was identified as a predictor of poor long-term outcomes, regular long-term follow-up of patients with VHL-associated spinal cord hemangioblastoma seems necessary.
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Affiliation(s)
- Xiaofeng Chen
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
- Institute of Brain Science, Harbin Medical University, Harbin, Heilongjiang, China
- Institute of Neuroscience, Sino-Russian Medical Research Center, Harbin Medical University, Harbin, Heilongjiang, China
| | - Hua Guo
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Jianli Zhang
- Department of Neurology, Xiamen Fifth Hospital, Xiamen, Fujian, China
| | - Junyi Ye
- Department of Neurosurgery, The Affiliated Lihuili Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Shurong Wang
- Department of Neurology, Hainan Medical University, Haikou, Hainan, China
| | - Haiping Jiang
- Department of Neurosurgery, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Qingchun Mu
- Department of Neurosurgery, The People's Hospital of Gaozhou of Guangdong Medical University, Maoming, Guangdong, China
| | - Xiaoxiong Wang
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
- Institute of Brain Science, Harbin Medical University, Harbin, Heilongjiang, China
- Institute of Neuroscience, Sino-Russian Medical Research Center, Harbin Medical University, Harbin, Heilongjiang, China
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Wu S, Li X, Ma L, Li Y, Mu Q. Zoonotic orf virus infection during the mpox global outbreak. QJM 2023; 116:714-715. [PMID: 37137276 DOI: 10.1093/qjmed/hcad079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Indexed: 05/05/2023] Open
Affiliation(s)
- S Wu
- Department of Dermatology, The First Hospital of Hohhot, Hohhot 010030, China
| | - X Li
- Department of Dermatology, The First Hospital of Hohhot, Hohhot 010030, China
- Department of Allergy, The First Hospital of Hohhot, Hohhot 010030, China
| | - L Ma
- Department of Dermatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y Li
- Department of Dermatology, The First Hospital of Hohhot, No. 150 Southern 2nd Ring Road, Yuquan District, Hohhot, Inner Mongolia 010030, China
- Department of Allergy, The First Hospital of Hohhot No. 150 Southern 2nd Ring Road, Yuquan District, Hohhot, Inner Mongolia 010030, China
| | - Q Mu
- Department of Dermatology, International Mongolian Hospital of Inner Mongolia, No. 83 University East Road, Saihan District, Hohhot, Inner Mongolia 010020, China
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Mu Q, Yao K, Syeda MZ, Zhang M, Cheng Q, Zhang Y, Sun R, Lu Y, Zhang H, Luo Z, Huang H, Liu X, Luo C, Zhu X, Wu S, Cui L, Huang C, Chen X, Tang L. Ligustrazine Nanoparticle Hitchhiking on Neutrophils for Enhanced Therapy of Cerebral Ischemia-Reperfusion Injury. Adv Sci (Weinh) 2023:e2301348. [PMID: 37078794 DOI: 10.1002/advs.202301348] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/19/2023] [Indexed: 05/03/2023]
Abstract
Ischemic stroke is a refractory disease that endangers human health and safety owing to cerebral ischemia. Brain ischemia induces a series of inflammatory reactions. Neutrophils migrate from the circulatory system to the site of cerebral ischemia and accumulate in large numbers at the site of inflammation across the blood-brain barrier. Therefore, hitchhiking on neutrophils to deliver drugs to ischemic brain sites could be an optimal strategy. Since the surface of neutrophils has a formyl peptide receptor (FPR), this work modifies a nanoplatform surface by the peptide cinnamyl-F-(D)L-F-(D)L-F (CFLFLF), which can specifically bind to the FPR receptor. After intravenous injection, the fabricated nanoparticles effectively adhered to the surface of neutrophils in peripheral blood mediated by FPR, thereby hitchhiking with neutrophils to achieve higher accumulation at the inflammatory site of cerebral ischemia. In addition, the nanoparticle shell is composed of a polymer with reactive oxygen species (ROS)-responsive bond breaking and is encased in ligustrazine, a natural product with neuroprotective properties. In conclusion, the strategy of hitching the delivered drugs to neutrophils in this study could improve drug enrichment in the brain, thereby providing a general delivery platform for ischemic stroke or other inflammation-related diseases.
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Affiliation(s)
- Qingchun Mu
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China
| | - Kai Yao
- Department of Neurosurgery, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Madiha Zahra Syeda
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China
| | - Min Zhang
- International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, China
| | - Qian Cheng
- Basic Medical College, Guilin Medical University, Guilin, 541199, China
| | - Yufei Zhang
- Basic Medical College, Guilin Medical University, Guilin, 541199, China
| | - Rui Sun
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou, 510515, China
| | - Yuting Lu
- International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, China
| | - Huamiao Zhang
- International Institutes of Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, China
| | - Zhicheng Luo
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China
| | - Hanning Huang
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China
| | - Xiaojing Liu
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China
| | - Chunmei Luo
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China
| | - Xiulong Zhu
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China
| | - Shuyu Wu
- Department of Neurosurgery, Hainan General Hospical, Hainan Affiliated Hospital of Hainan Medical University, Haikou, 570311, China
| | - Liao Cui
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs and School of Pharmacy, Guangdong Medical University, Dongguan, 523808, China
| | - Chunming Huang
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, and Surgery, Clinical Imaging Research Centre, Centre for Translational Medicine, Nanomedicine Translational Research Program, NUS Center for Nanomedicine, Yong Loo Lin School of Medicine, Departments of Chemical and Biomolecular Engineering, and Biomedical Engineering, Faculty of Engineering, National University of Singapore, Singapore, 117597, Singapore
| | - Longguang Tang
- The People's Hospital of Gaozhou, Guangdong Medical University, Maoming, 525200, China
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Huang H, Zhu C, Qin H, Deng L, Huang C, Saifi C, Bondar K, Giordan E, Danisa O, Chung JH, Elgafy H, Fonseka RD, Huang C, Mu Q. Intracranial hemorrhage after spinal surgery: a literature review. Ann Transl Med 2022; 10:1141. [PMID: 36388815 PMCID: PMC9652572 DOI: 10.21037/atm-22-4929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/19/2022] [Indexed: 12/02/2022]
Abstract
Background and Objective Intracranial hemorrhage following spinal surgery is an infrequent but severe complication. Due to its rarity, the etiology, clinical characteristics, and treatment have not yet been fully elucidated. This literature review analyzed the incidence, clinical manifestations, hemorrhage location, current therapeutic strategies, location of operation, and interval time between surgery and bleeding. The objectives of the article were to provide insights for clinicians to promptly identify and prevent potential cases of intracranial hemorrhage. Methods The authors queried PubMed and Web of Science databases using predefined keywords and included published literature reporting on intracranial hemorrhage after spinal surgery. Relevant case reports, case series, and reviews describing the mechanism of intracranial hemorrhage after spinal surgery and meeting diagnostic criteria for intracranial hemorrhage related to spinal surgery were included. Clinico-demographc data, presentations symptoms, location, index surgery type, and neurological outcomes after brain hemorrhage. Oxford Centre Level of Evidence guidelines was used to evaluate the quality of included studies. Descriptive statistics were used to synthesize the results. Key Content and Findings A total of 80 publications of level of evidence IV involving 108 patients with median age at diagnosis was 58.5 years (inter-quartile range: 6–85) were analyzed. The incidence of intracranial hemorrhage was 0.08–0.37% among patients who underwent spinal surgery, and this complication occurred predominantly within 48 hours postoperatively. The initial presentation included headache, reduced level of consciousness, dysarthria, nausea, vomiting, hearing loss, blurred vision, neck rigidity, and delayed recovery from anesthesia. More than half (58.3%) of patients improved, while 23.1% still experienced neurological dysfunctions, and 7.4% died. Conclusions The present study is limited by the levels of evidence of the included studies. There is heterogeneity among cases with respect to patient demographics and medical history. Angiography is critical in assessing the presence and extent of underlying vascular diseases. Intracranial hemorrages may be caused by intraoperative or postoperative cerebrospinal fluid leakage that will lead to intracranial pressure change and induced by intracranial venous or arterial bleeding. The treatment strategies include conservative medical management and surgical treatment. Individualized treatment should be emphasized.
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Affiliation(s)
- Hongxiang Huang
- Department of Neurosurgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Changliang Zhu
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Ningxia Key Laboratory of Cerebrocranial Disease, Yinchuan, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Hao Qin
- Clinical Research Center of Digital Medicine and 3D Printing, The People's Hospital of Gaozhou, Maoming, China
| | - Li Deng
- Clinical Research Center of Digital Medicine and 3D Printing, The People's Hospital of Gaozhou, Maoming, China
| | - Chunming Huang
- Clinical Research Center of Digital Medicine and 3D Printing, The People's Hospital of Gaozhou, Maoming, China
| | - Comron Saifi
- Department of Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, TX, USA
| | - Kevin Bondar
- Department of Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, TX, USA
| | - Enrico Giordan
- Neurosurgical Department, Aulss2 Marca Trevigiana, Treviso, Italy
| | - Olumide Danisa
- Department of Orthopedic Surgery, Loma Linda University Health, Loma Linda, California, USA
| | - Jun Ho Chung
- Department of Orthopedic Surgery, Loma Linda University Health, Loma Linda, California, USA
| | - Hossein Elgafy
- Department of Orthopedic Surgery, University of Toledo Medical Center, Toledo, OH, USA
| | - Rannulu Dineth Fonseka
- NeuroSpine Surgery Research Group (NSURG), Prince of Wales Private Hospital, Sydney, Australia
| | - Chuixue Huang
- Department of Neurosurgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Qingchun Mu
- Department of Neurosurgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
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Tang L, Ling M, Syeda MZ, Sun R, He M, Mu Q, Zhu X, Huang C, Cui L. A smart nanoplatform for enhanced photo-ferrotherapy of hepatocellular carcinoma. Front Bioeng Biotechnol 2022; 10:1022330. [PMID: 36204469 PMCID: PMC9530464 DOI: 10.3389/fbioe.2022.1022330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related deaths worldwide. Emerging therapies, such as ferroptosis mediated cancer therapy and phototherapy, offer new opportunities for HCC treatment. The combination of multiple treatments is often more effective than monotherapy, but many of the current treatments are prone to serious side effects, resulting in a serious decline in patients’ quality of life. Therefore, the combination therapy of tumor in situ controllable activation will improve the efficacy and reduce side effects for precise treatment of tumor. Herein, we synthesized a GSH-activatable nanomedicine to synergize photothermal therapy (PTT) and ferrotherapy. We utilized a near-infrared dye SQ890 as both an iron-chelating and a photothermal converter agent, which was encapsulated with a GSH-sensitive polymer (PLGA-SS-mPEG), to attain the biocompatible SQ890@Fe nanoparticles (NPs). In the tumor microenvironment (TME), SQ890@Fe NPs showed a GSH-activated photothermal effect that could increase the Fenton reaction rate. Meanwhile, the depletion of GSH could further increase ferroptosis effect. In turn, the increasing radical generated by ferrotherapy could impair the formation of heat shock proteins (HSPs) which could amplify PTT effects by limiting the self-protection mechanism. Overall, the intelligent nanomedicine SQ890@Fe NPs combines ferrotherapy and PTT to enhance the efficacy and safety of cancer treatment through the mutual promotion of the two treatment mechanisms, providing a new dimension for tumor combination therapy.
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Affiliation(s)
- Longguang Tang
- The People’s Hospital of Gaozhou, Guangdong Medical University, Maoming, China
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, and School of Pharmacy, Guangdong Medical University, Dongguan, China
- *Correspondence: Longguang Tang, ; Chunming Huang, ; Liao Cui,
| | - Mingjian Ling
- Southern Medical University Shenzhen Stomatology Hospital (Pingshan), Shenzhen, China
| | - Madiha Zahra Syeda
- Department of Pharmacology and Department of Respiratory and Critical Care Medicine of the Second Affiliated Hospital, Zhejiang University School of Medicine, Key Laboratory of Respiratory Disease of Zhejiang Province, Hangzhou, China
| | - Rui Sun
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou, China
| | - Minghui He
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
| | - Qingchun Mu
- The People’s Hospital of Gaozhou, Guangdong Medical University, Maoming, China
| | - Xiulong Zhu
- The People’s Hospital of Gaozhou, Guangdong Medical University, Maoming, China
| | - Chunming Huang
- The People’s Hospital of Gaozhou, Guangdong Medical University, Maoming, China
- *Correspondence: Longguang Tang, ; Chunming Huang, ; Liao Cui,
| | - Liao Cui
- Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, and School of Pharmacy, Guangdong Medical University, Dongguan, China
- *Correspondence: Longguang Tang, ; Chunming Huang, ; Liao Cui,
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10
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Mu Q, Zhang Y, Cheng Q, Huang H, Huang C, Tang L. Research progress on the mechanism of action of hesperetin in cerebral ischemia: a narrative review. Ann Transl Med 2022; 10:806. [PMID: 35965833 PMCID: PMC9372698 DOI: 10.21037/atm-22-3136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 07/06/2022] [Indexed: 11/06/2022]
Abstract
Background and Objective Methods Key Content and Findings Conclusions
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Affiliation(s)
- Qingchun Mu
- Department of Neurosurgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
- Department of Neurosurgery, The People’s Hospital of Gaozhou, Maoming, China
| | - Yufei Zhang
- Department of Physiology, Guilin Medical University, Guilin, China
| | - Qian Cheng
- College of Pharmacy, Guilin Medical University, Guilin, China
| | - Hanning Huang
- Department of Neurology, The People’s Hospital of Gaozhou, Maoming, China
| | - Chunming Huang
- Department of Orthopedics, The People’s Hospital of Gaozhou, Maoming, China
| | - Longguang Tang
- Department of Neurosurgery, The People’s Hospital of Gaozhou, Maoming, China
- International Institutes of Medicine, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, China
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11
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Cheng Q, Mao L, Huang H, Tang L, Jiang H, Zhang Y, Mu Q. Hesperetin ameliorates glioblastoma by inhibiting proliferation, inducing apoptosis, and suppressing metastasis. Transl Cancer Res 2022; 11:1781-1794. [PMID: 35836521 PMCID: PMC9273669 DOI: 10.21037/tcr-22-1497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 06/16/2022] [Indexed: 11/06/2022]
Abstract
Background Methods Results Conclusions
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Affiliation(s)
- Qian Cheng
- College of Pharmacy, Guilin Medical University, Guilin, China
| | - Lianzhi Mao
- School of Public Health, Southern Medical University, Guangzhou, China
| | - Hongxiang Huang
- Department of Neurosurgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Longguang Tang
- International Institutes of Medicine, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, China
| | - Hongyan Jiang
- Hospital of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Yufei Zhang
- Department of Physiology, Basic Medical College, Guilin Medical University, Guilin, China
| | - Qingchun Mu
- Department of Neurosurgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
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12
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Wang Z, Yu L, Wang Y, Wang C, Mu Q, Liu X, Yu M, Wang K, Yao G, Yu Z. Dynamic Adjust of Non-Radiative and Radiative Attenuation of AIE Molecules Reinforces NIR-II Imaging Mediated Photothermal Therapy and Immunotherapy. Adv Sci (Weinh) 2022; 9:e2104793. [PMID: 35064653 PMCID: PMC8922098 DOI: 10.1002/advs.202104793] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/23/2021] [Indexed: 05/07/2023]
Abstract
Due to the aggregation-caused quenching effect and near-infrared I poor penetration capabilities of common fluorescent molecules, their applications in visualized imaging and photoactivated treatment are limited. Therefore, new near-infrared II (NIR-II) molecule (named TST), which had the abilities of aggregation-induced emission (AIE) and photothermal therapy are synthesized. Moreover, in order to further improve its fluorescent yield and therapeutic effect, camptothecin prodrug (CPT-S-PEG) and novel immune checkpoint inhibitor AZD4635 are used to co-assemble with TST into nanoparticles for drug delivery. On account of the strong interaction of camptothecin and TST, the intramolecular rotation of TST is limited, thereby inhibiting non-radiation attenuation and promoting fluorescence generation when the nanoparticles are intact. As nanoparticles uptake by cancer cells, redox sensitive CPT-S-PEG is degraded and the nanoparticles disintegrate. The released TST enhances non-radiative attenuation and expedites photothermal conversion because of the removal of the constraint of camptothecin. Furthermore, photothermal therapy induces immunogenic cell death of cancer cells and releases abundant ATP into the tumor microenvironment to recruit immune cells. However, superfluous ATP is converted into immunosuppressive adenosine through the CD39-CD73-A2AR pathway. The AZD4635 released by photothermal disintegration of the nanoparticles just blocks this pathway timely, achieving favorable synergistic effect of photothermal therapy, chemotherapy, and immunotherapy.
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Affiliation(s)
- Zhenjie Wang
- The People's Hospital of GaozhouMaoming525200P. R. China
| | - Ling Yu
- Second Clinical CollegeGuangzhou University of Chinese MedicineGuangzhou510006P. R. China
- AMI Key laboratory of Chinese Medicine in GuangzhouGuangdong Provincial Hospital of Chinese MedicineGuangzhou510120P. R. China
| | - Yuehua Wang
- Cancer CenterIntegrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhou510315P. R. China
| | - Chenlu Wang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology College of ChemistryFuzhou UniversityFuzhou350108P. R. China
| | - Qingchun Mu
- The People's Hospital of GaozhouMaoming525200P. R. China
| | - Xiaojing Liu
- The People's Hospital of GaozhouMaoming525200P. R. China
| | - Meng Yu
- Guangdong Provincial Key Laboratory of New Drug ScreeningSchool of Pharmaceutical SciencesSouthern Medical UniversityNo. 1023, South Shatai RoadGuangzhou510515P. R. China
| | - Kang‐Nan Wang
- Shunde HospitalSouthern Medical University (The First People's Hospital of Shunde)Foshan528308P. R. China
| | - Guangyu Yao
- Breast CenterDepartment of General SurgeryNanfang HospitalSouthern Medical UniversityGuangzhou510515P. R. China
| | - Zhiqiang Yu
- Guangdong Provincial Key Laboratory of New Drug ScreeningSchool of Pharmaceutical SciencesSouthern Medical UniversityNo. 1023, South Shatai RoadGuangzhou510515P. R. China
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13
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Zhang Y, Tian Z, Ye S, Mu Q, Wang X, Ren S, Hou X, Yu W, Guo J. Changes in bone mineral density in Down syndrome individuals: a systematic review and meta-analysis. Osteoporos Int 2022; 33:27-37. [PMID: 34383099 DOI: 10.1007/s00198-021-06070-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 07/12/2021] [Indexed: 10/20/2022]
Abstract
Data evaluating changes in bone mineral density (BMD) in Down syndrome (DS) individuals remains controversial. Therefore, we conducted a systematic review and meta-analysis to better understand associations between BMD and DS. A systematic literature search of PubMed, EMBASE, Web of Science, and the Cochrane Library up until 1st January 2021 was conducted. We used the keywords "bone mineral density" and "Down Syndrome." Fifteen studies were included. Overall, our results showed a significant decrease in BMD of total body (TB BMD) [MD = - 0.18; 95% CI (- 0.23 and - 0.12), P < 0.00001, I2 = 89%], total hip (TH BMD) [MD = - 0.12; 95% CI (- 0.15 and - 0.10), P < 0.00001, I2 = 0%], lumbar spine (LS BMD) [MD = - 0.12; 95% CI (- 0.14 and - 0.09), P < 0.00001, I2 = 18%], and femoral neck (FN BMD) [MD = - 0.08; 95% CI (- 0.10 and - 0.06), P < 0.00001, I2 = 0%] in DS individuals when compared with controls. Moreover, the volumetric BMD of lumbar spine (LS vBMD) [MD = - 0.01; 95% CI (- 0.02 and - 0.01), P = 0.0004, I2 = 19%] also showed a decreasing tendency while the volumetric BMD of the femoral neck (FN vBMD) [MD = 0.01; 95% CI (0.00 and 0.02), P = 0.02, I2 = 0%] was elevated in DS individuals versus controls. These findings demonstrated that individuals with DS had a decreased total and regional (TH, LS, and FN) BMD when compared with the general population. Additionally, when BMD was adjusted for skeletal volume, LS vBMD was also lower, while FN vBMD was elevated in DS individuals versus controls.
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Affiliation(s)
- Y Zhang
- Department of Pediatric, Peking University People's Hospital, Beijing, 100044, China
| | - Z Tian
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing, 100044, China
| | - S Ye
- Department of Pediatric, Peking University People's Hospital, Beijing, 100044, China
| | - Q Mu
- Department of Central Laboratory & Institute of Clinical Molecular Biology, Peking University People's Hospital, Beijing, 100044, China
| | - X Wang
- Department of Central Laboratory & Institute of Clinical Molecular Biology, Peking University People's Hospital, Beijing, 100044, China
| | - S Ren
- Department of Pediatric, Peking University People's Hospital, Beijing, 100044, China
| | - X Hou
- Department of Pediatric, Peking University People's Hospital, Beijing, 100044, China
| | - W Yu
- Department of Central Laboratory & Institute of Clinical Molecular Biology, Peking University People's Hospital, Beijing, 100044, China.
| | - J Guo
- Department of Pediatric, Peking University People's Hospital, Beijing, 100044, China.
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14
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Qin H, Deng L, Xu L, Mu Q, Luo X, Huang S, Wang M, Luo C, Huang C, Huang W. Puncture and localization for percutaneous endoscopic lumbar discectomy with C-arm navigation: a randomized controlled cadaver trial. Ann Transl Med 2021; 9:1730. [PMID: 35071424 PMCID: PMC8743699 DOI: 10.21037/atm-21-5844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/06/2021] [Indexed: 11/30/2022]
Abstract
Background Accurate preoperative puncture and localization is a key step in percutaneous endoscopic lumbar discectomy (PELD). This study investigated the benefit of puncture and localization for PELD by C-arm navigation over conventional methods. Methods Sixteen adult cadavers were randomly divided into two groups (group A defined as the C-arm navigation method, and group B defined as the conventional localization method). Two junior orthopedic surgeons who specialized in spinal surgeries were randomly allocated to each group. Conventional localization using C-arm fluoroscopy and localization using C-arm navigation were performed during the procedure. The intervertebral foramen on both sides at L3-L4, L4-L5, and L5-S1 levels were punctured using the two methods. Technical parameters, such as fluoroscopy time, puncture time, overall time taken for puncture and localization, as well as the number of fluoroscopies, number of puncture attempts, and success rate of the first puncture were compared between the two methods. The learning curves were plotted for the two methods, and correlations between all technical parameters were analyzed. Results Puncture and localization for PELD assisted by C-arm navigation had a flatter learning curve compared with the conventional localization method. The fluoroscopy, puncture, and total puncture-localization time for group A were 5.61 (±1.37), 2.29 (±1.22), and 9.78 (±2.66) minutes compared with 15.72 (±3.59), 4.87 (±1.70), and 20.59 (±4.79) minutes for group B, respectively (P<0.05). Fluoroscopy was used on average 5.15 (±1.34) times in group A and 20.04 (±5.05) times in group B (P<0.05). There was an average of 1.08 (±0.28) puncture attempts in group A compared with 4.67 (±1.88) attempts in group B (P<0.05). The success rate of the first puncture was 91.7% in group A and 10.4% in group B (P<0.05). Conclusions Puncture and localization using C-arm navigation for PELD was shown to dramatically flatten the learning curve of junior surgeons and significantly improved the success rate of the first puncture. Moreover, PELD using C-arm navigation can minimize surgery time and the risk of radiation exposure for both patients and medical staff by reducing the number of fluoroscopies and puncture attempts.
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Affiliation(s)
- Hao Qin
- Clinical Research Center of Digital Medicine and 3D Printing, Affiliated Gaozhou Hospital of Guangdong Medical University, Gaozhou, China
- Department of Orthopedics, Guigang City People’s Hospital, Guigang, China
| | - Li Deng
- Clinical Research Center of Digital Medicine and 3D Printing, Affiliated Gaozhou Hospital of Guangdong Medical University, Gaozhou, China
| | - Lin Xu
- Department of Orthopedics, Guigang City People’s Hospital, Guigang, China
| | - Qingchun Mu
- Clinical Research Center of Digital Medicine and 3D Printing, Affiliated Gaozhou Hospital of Guangdong Medical University, Gaozhou, China
| | - Xiang Luo
- Department of Orthopedics, Guigang City People’s Hospital, Guigang, China
| | - Shengbin Huang
- Department of Orthopedics, Guigang City People’s Hospital, Guigang, China
| | - Maosheng Wang
- Clinical Research Center of Digital Medicine and 3D Printing, Affiliated Gaozhou Hospital of Guangdong Medical University, Gaozhou, China
| | - Chunmei Luo
- Clinical Research Center of Digital Medicine and 3D Printing, Affiliated Gaozhou Hospital of Guangdong Medical University, Gaozhou, China
| | - Chunming Huang
- Clinical Research Center of Digital Medicine and 3D Printing, Affiliated Gaozhou Hospital of Guangdong Medical University, Gaozhou, China
| | - Wenhua Huang
- Orthopedic Center, Affiliated Hospital of Guangdong Medical University, Guangdong Medical University, Zhanjiang, China
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
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15
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Tang L, Feng Y, Gao S, Mu Q, Liu C. Nanotherapeutics Overcoming the Blood-Brain Barrier for Glioblastoma Treatment. Front Pharmacol 2021; 12:786700. [PMID: 34899350 PMCID: PMC8655904 DOI: 10.3389/fphar.2021.786700] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/10/2021] [Indexed: 01/10/2023] Open
Abstract
Glioblastoma (GBM) is the most common malignant primary brain tumor with a poor prognosis. The current standard treatment regimen represented by temozolomide/radiotherapy has an average survival time of 14.6 months, while the 5-year survival rate is still less than 5%. New therapeutics are still highly needed to improve the therapeutic outcome of GBM treatment. The blood-brain barrier (BBB) is the main barrier that prevents therapeutic drugs from reaching the brain. Nanotechnologies that enable drug delivery across the BBB hold great promise for the treatment of GBM. This review summarizes various drug delivery systems used to treat glioma and focuses on their approaches for overcoming the BBB to enhance the accumulation of small molecules, protein and gene drugs, etc. in the brain.
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Affiliation(s)
- Lin Tang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Yicheng Feng
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Sai Gao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Qingchun Mu
- The People’s Hospital of Gaozhou, Gaozhou, China
| | - Chaoyong Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
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16
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Chen H, Wang Y, Liu Y, Tang L, Mu Q, Yin X, Zheng L, Chen Y, Liu C. Delivery of Cationic Platinum Prodrugs via Reduction Sensitive Polymer for Improved Chemotherapy. Small 2021; 17:e2101804. [PMID: 34554644 DOI: 10.1002/smll.202101804] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/28/2021] [Indexed: 06/13/2023]
Abstract
A cationic monofunctional platinum anticancer drug, phenanthriplatin (PhenPt(II)), exhibits promising anticancer effect on various cancer cell lines. Unlike the conventional platinum(II) drugs, PhenPt(II) is more likely to bind the N7 adenosine base of DNA in situ, and consequently resulting in a unique cellular response profile and unusual potency. However, since this drug is positively charged, it can easily bind to plasma protein that leads to rapid systematic clearance and deleterious toxicities, which greatly limits its in vivo application. Herein, a lipophilic phenanthriplatin (PhenPt(IV)) prodrug is synthesized. To further reduce its toxicity, a negatively charged polymer P1 with reduction responsiveness is assembled with PhenPt(IV) to form PhenPt(IV) NPs. In comparison to cisplatin, PhenPt(IV) NPs exhibit up to 30 times greater in vitro potency against various cancer cell lines. Additionally, in vivo, no obvious side effect is found on PhenPt(IV) NPs. Significant enhancement in tumor accumulation and improvement of drug efficacy in 4T1 tumor model are demonstrated. Taken together, this study provides a promising strategy for the clinical translation of phenanthriplatin.
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Affiliation(s)
- Hao Chen
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yushu Wang
- The People's Hospital of Gaozhou, Gaozhou City, 525200, P. R. China
| | - Yulin Liu
- Urology Surgery, Shenzhen Traditional Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, 518033, P. R. China
| | - Lin Tang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Qingchun Mu
- The People's Hospital of Gaozhou, Gaozhou City, 525200, P. R. China
| | - Xiangye Yin
- Department of Plastic and Reconstructive Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853, P. R. China
| | - Liuchun Zheng
- School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Youbai Chen
- Department of Plastic and Reconstructive Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853, P. R. China
| | - Chaoyong Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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17
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Wu J, Wang N, Yang Y, Jiang G, Mu Q, Zhan H, Li F. Correction: LINC01152 upregulates MAML2 expression to modulate the progression of glioblastoma multiforme via Notch signaling pathway. Cell Death Dis 2021; 12:862. [PMID: 34556630 PMCID: PMC8460719 DOI: 10.1038/s41419-021-04106-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Jianheng Wu
- Department of Neurosurgery, Gaozhou People's Hospital, Gaozhou, 525200, Guangdong, China
| | - Nannan Wang
- Department of Gastroenterology, Gaozhou People's Hospital, Gaozhou, 525200, Guangdong, China
| | - Ying Yang
- Electroencephalogram Room, Weifang Yidu Central Hospital, Weifang, 262500, Shandong, China
| | - Guangyuan Jiang
- Department of Neurosurgery, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, 541000, Guangxi, China
| | - Qingchun Mu
- Department of Neurosurgery, Gaozhou People's Hospital, Gaozhou, 525200, Guangdong, China
| | - Hui Zhan
- Department of Neurosurgery, Gaozhou People's Hospital, Gaozhou, 525200, Guangdong, China
| | - Fuyong Li
- Department of Neurosurgery, the People's Hospital of China Medical University (the People's Hospital of Liaoning Province), Shenyang, 110016, Liaoning, China.
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18
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Mu Q, Lv Y, Luo C, Liu X, Huang C, Xiu Y, Tang L. Research Progress on the Functions and Mechanism of circRNA in Cisplatin Resistance in Tumors. Front Pharmacol 2021; 12:709324. [PMID: 34566636 PMCID: PMC8458655 DOI: 10.3389/fphar.2021.709324] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 08/30/2021] [Indexed: 12/24/2022] Open
Abstract
Cisplatin is a common chemotherapeutic drug that has been used to treat of numerous tumors, including testicular, lung, bladder, ovarian, liver and head and neck cancers. Although clinical chemotherapy based on cisplatin has shown a remarkable therapeutic effect, the resistance to cisplatin becomes increasingly obvious as a patient uses it for a prolonged period. It not only affects the prognosis of these tumors, but also causes the recurrence of cancer and decreases the overall survival rate. The development of cisplatin resistance involves several mechanisms, including DNA damage repair, ATP-binding cassette (ABC) transporter, autophagy, cancer stem cells (CSCs), epithelial-mesenchymal transition (EMT), and other related signaling pathways. Interestingly, these mechanisms have been found to be influenced by circular RNAs (circRNAs) to regulate tumor proliferation, invasion, chemosensitivity, and other biological behaviors in the tumor microenvironment (TME). In recent years, circRNAs in cisplatin resistance in tumors, especially lung cancer and gastric cancer, have gradually drawn peoples' attention. This review summarizes recent studies on the functions and mechanisms of circRNAs in cisplatin resistance. We emphasize that circRNA can be used as a promising target gene to improve drug resistance and therapeutic efficacy.
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Affiliation(s)
- Qingchun Mu
- The People’s Hospital of Gaozhou, Gaozhou, China
| | - Yue Lv
- Department of Urology, The First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Chunmei Luo
- The People’s Hospital of Gaozhou, Gaozhou, China
| | - Xiaojing Liu
- The People’s Hospital of Gaozhou, Gaozhou, China
| | | | - Youcheng Xiu
- Department of Urology, The First Affiliated Hospital, Harbin Medical University, Harbin, China
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19
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Deng L, Qin H, Guan Z, Mu Q, Xia Q, Wang M, Huang WH, Gu K. Computational numerical analysis of different cannulation methods during cardiopulmonary bypass of type A aortic dissection model based on computational fluid dynamics. Ann Transl Med 2021; 9:667. [PMID: 33987365 PMCID: PMC8106110 DOI: 10.21037/atm-21-605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background The aim of the present study was to use a numerical simulation based on computational fluid dynamics (CFD) to analyze the difference of different cannulation methods on hemodynamics characteristic in a type A aortic dissection (TAAD) model. Methods A finite-element analysis based on the CFD model of a TAAD patient was used, and axillary artery cannulation (AAC), innominate artery cannulation (IAC), and femoral artery cannulation (FAC) were analyzed under different situations, including a cardiac output (CO) of 2.5 L/min and cardiopulmonary bypass (CPB) of 2.5 L/min (partial CPB before cross-clamping aorta, defined as condition A), and a CO of 0 L/min and CPB of 5 L/min (aortic cross-clamping phase, defined as condition B). The insertion of an 8-mm cannula into the different models was simulated. Hemodynamic characteristics, including wall shear stress, wall stress, blood flow, and velocity were analyzed. Results In condition A, the total flow of branches of the aortic arch was 2,009.5 mL/min (AAC), 1,855.47 mL/min (IAC), and 1,648.03 mL/min (FAC). All cannulation methods improved left renal blood perfusion. However, in relation to blood flow in the right renal artery, FAC showed the highest blood flow (105 mL/min). The results in condition B were similar to those of condition A. The velocity, shear stress, and stress of entry tear via AAC and IAC decreased in condition B compared with condition A. The velocity, shear stress, stress of tear via AAC was lower than that of IAC. Conclusions Different cannulation modes have an effect on the hemodynamic characteristic of the tear, but this effect is related to different states of CPB. AAC was found to superior to IAC, especially in reducing velocity, stress, and shear stress of site of tear. However, IAC and AAC are more conductive to blood supply than FAC in branch vessels of the aortic arch without being affected by the CPB state.
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Affiliation(s)
- Li Deng
- Affiliated Gaozhou Hospital of Guangdong Medical University, Gaozhou, China.,Clinical Research Center of Digital Medicine and 3D Printing, Department of Cardiovascular Surgery, The People's Hospital of Gaozhou, Gaozhou, China
| | - Hao Qin
- Clinical Research Center of Digital Medicine and 3D Printing, Department of Cardiovascular Surgery, The People's Hospital of Gaozhou, Gaozhou, China
| | - Zhiyuan Guan
- Peking University Third Hospital, Beijing, China
| | - Qingchun Mu
- Clinical Research Center of Digital Medicine and 3D Printing, Department of Cardiovascular Surgery, The People's Hospital of Gaozhou, Gaozhou, China
| | - Qingping Xia
- Clinical Research Center of Digital Medicine and 3D Printing, Department of Cardiovascular Surgery, The People's Hospital of Gaozhou, Gaozhou, China
| | - Maosheng Wang
- Clinical Research Center of Digital Medicine and 3D Printing, Department of Cardiovascular Surgery, The People's Hospital of Gaozhou, Gaozhou, China
| | - Wen-Hua Huang
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Guangdong Medical University, Zhanjiang, China.,Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Medical Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Kaiyun Gu
- National Clinical Research Center for Child Health, The Children's Hospital Zhejiang University School of Medicine, Hangzhou, China
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20
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Wang Z, Tang L, Mu Q, Che S, Sun Y, Bai L, Luo Y, Yang Y, Yu M, Yu Z. Engineered polymer nanoplatforms for targeted tumor cells and controlled release cargos to enhance cancer treatment. Curr Med Chem 2021; 28:6395-6410. [PMID: 33634752 DOI: 10.2174/0929867328666210226143148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 12/17/2020] [Accepted: 12/20/2020] [Indexed: 11/22/2022]
Abstract
Cancer is composed of a serious of uncontrollably c ells, which finally form tumors to negatively impact the functions of the body and induce other serious diseases, even lead people to death. During the last decades, scientists devote great effort to study cancer, however there are no effective diagnosis and treatments. Nanomaterials have attracted great attention in biomedical field in recent years, which have been widely used as optical imaging probes and delivery systems for cancer therapy. Among the numerous nanomaterials, polymeric nanoparticles occupy a prominent position because of their tunable micro-size, multifunctional surface, prominent biocompatibility and high drug-carrying capacity. These significant advantages endow them over the traditional nanomaterials and become a potential therapy for cancer. In this review, we focus on the applications of polymeric nanoparticles in cancer theranostics, especially as the drug delivery systems for cancer treatment. This review provides an overview of the advancement of synthesis, application of polymeric nanoparticles-based drug delivery systems and highlights the evaluation for cancer therapy.
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Affiliation(s)
- Zhenjie Wang
- The People's Hospital of Gaozhou, Maoming, 525200. China
| | - Longguang Tang
- The People's Hospital of Gaozhou, Maoming, 525200. China
| | - Qingchun Mu
- The People's Hospital of Gaozhou, Maoming, 525200. China
| | - Siyao Che
- The People's Hospital of Gaozhou, Maoming, 525200. China
| | - Yongbing Sun
- Division of Pharmaceutics, National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, NO 1688 Meiling Road, Nanchang, 330004. China
| | - Lei Bai
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown 26506. United States
| | - Yan Luo
- Department of Chemical and Biomedical Engineering, West Virginia University, Morgantown 26506. United States
| | - Yeguo Yang
- Clinical Research Center, Maoming People's Hospital, 101 Weimin Road, Maoming 525000. China
| | - Meng Yu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515. China
| | - Zhiqiang Yu
- Clinical Research Center, Maoming People's Hospital, 101 Weimin Road, Maoming 525000. China
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21
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Wu J, Wang N, Yang Y, Jiang G, Mu Q, Zhan H, Li F. LINC01152 upregulates MAML2 expression to modulate the progression of glioblastoma multiforme via Notch signaling pathway. Cell Death Dis 2021; 12:115. [PMID: 33483471 PMCID: PMC7822850 DOI: 10.1038/s41419-020-03163-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 09/16/2020] [Accepted: 09/18/2020] [Indexed: 12/18/2022]
Abstract
Glioblastoma multiforme (GBM) brings serious physical and psychological pain to GBM patients, whose survival rate remains not optimistic. Long noncoding RNAs (lncRNAs) have been reported to participate in the progression of many cancers, including GBM. However, the mechanism and function of long intergenic non-protein coding RNA 1152 (LINC01152) in GBM are still unclear. In our study, we aimed to explore the function and mechanism of LINC01152 in GBM. Then qRT-PCR analysis was implemented to search the expression of RNAs in GBM tissues and cells. Functional assays such as EdU assay, colony formation assay, TUNEL assay and flow cytometry analysis were conducted to estimate GBM cell proliferation and apoptosis. RNA pull down assay, luciferase reporter assay, RIP and ChIP assays were implemented to search the binding between molecules. As a result, we discovered that LINC01152 was upregulated in GBM tissues and cells. LINC01152 and mastermind like transcriptional coactivator 2 (MAML2) could both play the oncogenic part in GBM. Moreover, LINC01152 positively regulated MAML2 in GBM by sponging miR-466 and recruiting SRSF1. In turn, RBPJ/MAML2 transcription complex was found to activate the transcription of LINC01152 in GBM cells. In conclusion, LINC01152 could upregulate the expression of MAML2 to promote tumorigenesis in GBM via Notch signaling pathway.
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Affiliation(s)
- Jianheng Wu
- Department of Neurosurgery, Gaozhou People's Hospital, Gaozhou, 525200, Guangdong, China
| | - Nannan Wang
- Department of Gastroenterology, Gaozhou People's Hospital, Gaozhou, 525200, Guangdong, China
| | - Ying Yang
- Electroencephalogram Room, Weifang Yidu Central Hospital, Weifang, 262500, Shandong, China
| | - Guangyuan Jiang
- Department of Neurosurgery, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, 541000, Guangxi, China
| | - Qingchun Mu
- Department of Neurosurgery, Gaozhou People's Hospital, Gaozhou, 525200, Guangdong, China
| | - Hui Zhan
- Department of Neurosurgery, Gaozhou People's Hospital, Gaozhou, 525200, Guangdong, China
| | - Fuyong Li
- Department of Neurosurgery, the People's Hospital of China Medical University (the People's Hospital of Liaoning Province), Shenyang, 110016, Liaoning, China.
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22
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Wu J, Su R, Qiu D, Cheng X, Li L, Huang C, Mu Q. Analysis of DWI in the classification of glioma pathology and its therapeutic application in clinical surgery: a case-control study. Transl Cancer Res 2021; 11:805-812. [PMID: 35571647 PMCID: PMC9091004 DOI: 10.21037/tcr-22-114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/11/2022] [Indexed: 12/03/2022]
Abstract
Background Glioma is a common primary craniocerebral malignant tumor, due to the lack of specificity of imaging examination and clinical manifestations, its diagnostic accuracy is relatively low, which may result in misdiagnosis and missed diagnosis. The apparent diffusion coefficient (ADC) in magnetic resonance diffusion weighted imaging (DWI) can reflect the histological characteristics of gliomas, which can be widely applied to classify gliomas and evaluate the extent of metastasis of glioma. The present study aimed to assess the clinical value of magnetic resonance DWI in the pathological grading of glioma and its therapeutic application in clinical surgery. Methods This article retrospectively analyzed the clinical data of 41 patients with glioma confirmed by surgical pathology results from January 1, 2019 to March 31, 2020 in the People’s Hospital of Gaozhou. Among them, 16 patients had low-grade gliomas [World Health Organization (WHO) grade I–II] and 25 patients had high-grade gliomas (WHO grade III–IV). They were subjected to conventional T1WI and T2WI plain scans, along with DWI and enhanced scans before surgery. The ADC values of the glioma parenchyma, the peritumoral edema area, the surrounding white matter, and the contralateral normal white matter were measured. We selected some tumor tissues for pathological analysis as well, and conducted pathological grading according to WHO grading standards. Results We compared and evaluated the ADC values of the observed areas for low-grade gliomas and high-grade gliomas. The ADC values of low-grade gliomas in the tumor parenchyma, peritumoral edema, and white matter around the edema area were significantly lower than those of high-grade gliomas, and the differences were statistically significant (P<0.05). The difference in ADC values of normal white matter between the two groups of patients was not statistically significant (P=0.125). Conclusions DWI has prognostic predictive value in the preoperative differential diagnosis and pathological classification of gliomas. This advanced technology can verify the extent of glioma infiltration in the surrounding brain tissue. It can help clinicians formulate a safer and more effective therapeutic strategy by providing accurate information on prognostic evaluation before the successful surgical intervention of gliomas.
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Affiliation(s)
- Jianheng Wu
- Department of Neurosurgery, The People’s Hospital of Gaozhou, Gaozhou, China
| | - Ranyu Su
- Heilongjiang Key Laboratory of Antifibrosis Biotherapy, Mudanjiang Medical University, Mudanjiang, China
| | - Di Qiu
- Department of Neurosurgery, The People’s Hospital of Gaozhou, Gaozhou, China
| | - Xiaozhi Cheng
- Department of Neurosurgery, The People’s Hospital of Gaozhou, Gaozhou, China
| | - Linfan Li
- Department of Neurosurgery, The People’s Hospital of Gaozhou, Gaozhou, China
| | - Chunming Huang
- Department of Neurosurgery, The People’s Hospital of Gaozhou, Gaozhou, China
| | - Qingchun Mu
- Department of Neurosurgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
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23
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Tang L, Wang Z, Mu Q, Yu Z, Jacobson O, Li L, Yang W, Huang C, Kang F, Fan W, Ma Y, Wang M, Zhou Z, Chen X. Targeting Neutrophils for Enhanced Cancer Theranostics. Adv Mater 2020; 32:e2002739. [PMID: 32656801 DOI: 10.1002/adma.202002739] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/18/2020] [Indexed: 05/18/2023]
Abstract
Improving tumor accumulation and delivery efficiency is an important goal of nanomedicine. Neutrophils play a vital role in both chemically mediating inflammatory response through myeloperoxidase (MPO) and biologically promoting metastasis during inflammation triggered by the primary tumor or environmental stimuli. Herein, a novel theranostic nanomedicine that targets both the chemical and biological functions of neutrophils in tumor is designed, facilitating the enhanced retention and sustained release of drug cargos for improved cancer theranostics. 5-hydroxytryptamine (5-HT) is equipped onto nanoparticles (NPs) loaded with photosensitizers and Zileuton (a leukotriene inhibitor) to obtain MPO and neutrophil targeting NPs, denoted as HZ-5 NPs. The MPO targeting property of 5-HT modified NPs is confirmed by noninvasive positron emission tomography imaging studies. Furthermore, photodynamic therapy is used to initiate the inflammatory response which further mediated the accumulation and retention of neutrophil targeting NPs in a breast cancer model. This design renders a greatly improved theranostic nanomedicine for efficient tumor suppression, and more importantly, inhibition of neutrophil-mediated lung metastasis via the sustained release of Zileuton. This work presents a novel strategy of targeting neutrophils for improved tumor theranostics, which may open up new avenues in designing nanomedicine through exploiting the tumor microenvironment.
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Affiliation(s)
- Longguang Tang
- The People's Hospital of Gaozhou, Maoming, 525200, China
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
- Department of Chemistry, Stanford University, Stanford, CA, 94305, USA
| | - Zhantong Wang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Qingchun Mu
- The People's Hospital of Gaozhou, Maoming, 525200, China
| | - Zhiqiang Yu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou, 510515, China
| | - Orit Jacobson
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Ling Li
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Weijing Yang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Chunming Huang
- The People's Hospital of Gaozhou, Maoming, 525200, China
| | - Fei Kang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Wenpei Fan
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Ying Ma
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Maosheng Wang
- The People's Hospital of Gaozhou, Maoming, 525200, China
| | - Zijian Zhou
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
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24
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Fang Y, Yang C, Yu Z, Li X, Mu Q, Liao G, Yu B. Natural products as LSD1 inhibitors for cancer therapy. Acta Pharm Sin B 2020; 11:S2211-3835(20)30616-X. [PMID: 32837872 PMCID: PMC7305746 DOI: 10.1016/j.apsb.2020.06.007] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/30/2020] [Accepted: 06/08/2020] [Indexed: 02/07/2023] Open
Abstract
Natural products generally fall into the biologically relevant chemical space and always possess novel biological activities, thus making them a rich source of lead compounds for new drug discovery. With the recent technological advances, natural product-based drug discovery is now reaching a new era. Natural products have also shown promise in epigenetic drug discovery, some of them have advanced into clinical trials or are presently being used in clinic. The histone lysine specific demethylase 1 (LSD1), an important class of histone demethylases, has fundamental roles in the development of various pathological conditions. Targeting LSD1 has been recognized as a promising therapeutic option for cancer treatment. Notably, some natural products with different chemotypes including protoberberine alkaloids, flavones, polyphenols, and cyclic peptides have shown effectiveness against LSD1. These natural products provide novel scaffolds for developing new LSD1 inhibitors. In this review, we mainly discuss the identification of natural LSD1 inhibitors, analysis of the co-crystal structures of LSD1/natural product complex, antitumor activity and their modes of action. We also briefly discuss the challenges faced in this field. We believe this review will provide a landscape of natural LSD1 inhibitors.
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Key Words
- AML, acute myeloid leukemia
- CCC, cut countercurrent chromatography
- CD11b, integrin alpha M
- CD14, cluster of differentiation 14
- CD86, cluster of differentiation 86
- COVID-19, coronavirus disease
- Cancer therapy
- CoREST, RE1-silencing transcription factor co-repressor
- Drug discovery
- EMT, epithelial–mesenchymal transition
- EVOO, extra virgin olive oil
- EdU, 5-ethynyl-20-deoxyuridine
- Epigenetic regulation
- FAD, flavin adenine dinucleotide
- FDA, U.S. Food and Drug Administration
- GGA, geranylgeranoic acid
- H3K4, histone H3 lysine 4
- H3K9, histone H3 lysine 9
- HDAC, histone deacetylase
- HRP, horseradish peroxidase
- Histone demethylase
- Kt, competitive inhibition constant
- LSD1 inhibitors
- LSD1, lysine-specific histone demethylase 1A
- MAO-A, monoamine oxidase A
- MHC, myosin heavy chain
- MMA, methylmalonic acid
- NAD, nicotinamide adenine dinucleotide
- NTRK2, neurotrophic receptor tyrosine kinase 2
- Natural products
- PDX, patient-derived xenograft
- SARS-CoV-2, severe acute respiratory syndrome coronavirus 2
- SARs, structure–activity relationship studies
- SIRT1, sirtuin 1
- SOX2, sex determining region Y-box 2
- SPR, surface plasmon resonance
- TCP, tranylcypromine
- THF, tetrahydrofolate
- Tm, melting temperature
- iPS, induced pluripotent stem
- mRNA, messenger RNA
- siRNA, small interfering RNA
- ΔΨm, mitochondrial transmembrane potential
- α-MG, α-mangostin
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Affiliation(s)
- Yuan Fang
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Chao Yang
- Institute of Innovation & Application, Zhejiang Ocean University, Zhoushan 316022, China
| | - Zhiqiang Yu
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xiaochuan Li
- The People's Hospital of Gaozhou, Gaozhou 525200, China
| | - Qingchun Mu
- The People's Hospital of Gaozhou, Gaozhou 525200, China
| | - Guochao Liao
- Joint Laboratory for Translational Cancer Research of Chinese Medicine of the Ministry of Education of the People's Republic of China, International Institute for Translational Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Bin Yu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
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25
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Sun K, Mu Q, Chang H, Zhang C, Wang Y, Rong S, Liu S, Zuo D, He Z, Wan D, Yang H, Wang F, Sun T. Postretrieval Microinjection of Baclofen Into the Agranular Insular Cortex Inhibits Morphine-Induced CPP by Disrupting Reconsolidation. Front Pharmacol 2020; 11:743. [PMID: 32508658 PMCID: PMC7248341 DOI: 10.3389/fphar.2020.00743] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 05/04/2020] [Indexed: 12/15/2022] Open
Abstract
Environmental cues associated with drug abuse are powerful mediators of drug craving and relapse in substance-abuse disorders. Consequently, attenuating the strength of cue-drug memories could reduce the number of factors that cause drug craving and relapse. Interestingly, impairing cue-drug memory reconsolidation is a generally accepted strategy aimed at reducing the intensity of cues that trigger drug-seeking and drug-taking behaviors. In addition, the agranular insular cortex (AI) is an important component of the neural circuits underlying drug-related memory reconsolidation. GABAB receptors (GABABRs) are potential targets for the treatment of addiction, and baclofen (BLF) is the only prototypical GABAB agonist available for application in clinical addiction treatment. Furthermore, ΔFosB is considered a biomarker for the evaluation of potential therapeutic interventions for addiction. Here, we used the morphine-induced conditioned place preference (CPP) paradigm to investigate whether postretrieval microinjections of BLF into the AI could affect reconsolidation of drug-reward memory, reinstatement of CPP, and the level of ΔFosB in mice. Our results showed that BLF infused into the AI immediately following morphine CPP memory retrieval, but not 6 h postretrieval or following nonretrieval, could eliminate the expression of a morphine CPP memory. This effect persisted in a morphine-priming–induced reinstatement test, suggesting that BLF in the AI was capable of preventing the reconsolidation of the morphine CPP memory. Our results also showed that the elimination of morphine CPP memory was associated with reduced morphine-associated ΔFosB expression in the longer term. Taken together, the results of our research provide evidence to support that GABABRs in the AI have an important role in drug-cue memory reconsolidation and further our understanding of the role of the AI in drug-related learning and memory.
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Affiliation(s)
- Kuisheng Sun
- Ningxia Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China.,Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China.,Department of Neurosurgery, The People's Hospital of Gaozhou, Gaozhou, China
| | - Qingchun Mu
- Department of Neurosurgery, The People's Hospital of Gaozhou, Gaozhou, China
| | - Haigang Chang
- Ningxia Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China.,Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Chun Zhang
- Ningxia Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Yehua Wang
- Ningxia Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Shikuo Rong
- Ningxia Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Shenhai Liu
- Ningxia Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Di Zuo
- Ningxia Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Zhenquan He
- Ningxia Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China
| | - Ding Wan
- Ningxia Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China.,Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Hua Yang
- Department of Critical Care Medicine, The People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, China
| | - Feng Wang
- Ningxia Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China.,Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Tao Sun
- Ningxia Key Laboratory of Cerebrocranial Disease, Incubation Base of National Key Laboratory, Ningxia Medical University, Yinchuan, China.,Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, China
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26
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Chen W, Zhao Z, Wang C, Li H, Wei R, Zhang S, Peng Z, Liu Y, Wang Q, Mu Q, Xuan L. Linear polarization grating combining a circular polarization grating with a special cycloidal diffractive quarter waveplate. Opt Express 2019; 27:33378-33390. [PMID: 31878408 DOI: 10.1364/oe.27.033378] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 10/14/2019] [Indexed: 06/10/2023]
Abstract
We introduce and demonstrate a switchable novel linear polarization grating (LPG) consisting of a circular polarization grating (CPG) and a special cycloidal diffractive quarter waveplate (CQWP). The CQWP is developed that marvelously matches the polarization-state of beams passing through the CPG. Such an LPG is so polarization-sensitive that it can split an incident linear polarized beam into two proportionally controllable left- or right-handed circularly polarized lights. We establish rigorous simulation model based on finite element method to investigate near-field polarization-state distribution of CPGs. Furthermore, LPGs are demonstrated and the diffraction properties are obtained with simulation and Jones Matrix analysis. The combination of CPGs and CQWPs is achieved with polymerizable liquid crystal. The experimental results of deflection angle and polarization selectivity of LPGs are consistent with those of simulation.
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27
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Wang C, Peng Z, Liu Y, Li S, Zhao Z, Chen W, Wang Q, Mu Q. Two-dimensional symmetrical radial sub-aperture coherence and the local precision defect elimination method for high-precision beam steering. Opt Express 2019; 27:18751-18765. [PMID: 31252812 DOI: 10.1364/oe.27.018751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 05/29/2019] [Indexed: 06/09/2023]
Abstract
Sub-aperture coherence (SAC) is a classical phase control method for high-precision beam steering using liquid crystal optical phased arrays (LCOPA). On this basis, radial sub-aperture coherence (RSAC) and symmetrical radial sub-aperture coherence (SRSAC) were proposed, which guarantee the stability of steering angles when the beam aperture and incident position fluctuate. In this article, the pre-existing one-dimensional SRSAC was firstly extended to a more universal 2D phase generation algorithm. Meanwhile, for the intractable problem of local precision defects caused by the basic two-dimensional variable period grating (2D-VPG) algorithm, we tracked their locations accurately and designed a targeted elimination method carefully. So these remarkable error peaks could be thoroughly removed by using 2D-SRSAC optimized by the local precision defect elimination method. Since then, all the excellent performance of 1D-SRSAC can be perfectly transplanted to 2D, which makes the non-mechanical beam steering technology using LCOPA more mature and competitive in the applications required ultra-high precision.
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28
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Wang C, Peng Z, Liu Y, Li S, Zhao Z, Chen W, Wang Q, Mu Q. Radial sub-aperture coherence method used to achieve beam steering with high precision and stability. Opt Express 2019; 27:6331-6347. [PMID: 30876220 DOI: 10.1364/oe.27.006331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 02/11/2019] [Indexed: 06/09/2023]
Abstract
Sub-aperture coherence (SAC) algorithm, which is based on the classical phase modulation method called variable period grating (VPG), was usually used to control liquid crystal optical phased arrays (LCOPA) to achieve agile beam steering with high precision. However, the beam steering angle of SAC is severely affected by the beam aperture, which limits the generality of the algorithm distinctly. In this article, two kinds of new phase modulation method have been proposed to solve this problem, which were named as radial sub-aperture coherence (RSAC) and symmetrical radial sub-aperture coherence (SRSAC). By using RSAC, the holistic drift of steering angle, which is caused by the variation of beam aperture, can be effectively avoided. In addition, a series of equidistant steering points with ultra-high precision can be obtained. Upon this basis, SRSAC greatly enhances the steering angle's stability in the presence of system alignment error and relative vibration. Thus, the practicability of LCOPA for beam steering can be improved effectively.
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29
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Wang Y, Chen X, Cao Z, Zhang X, Liu C, Mu Q. Gradient cross-correlation algorithm for scene-based Shack-Hartmann wavefront sensing. Opt Express 2018; 26:17549-17562. [PMID: 30119566 DOI: 10.1364/oe.26.017549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 06/04/2018] [Indexed: 06/08/2023]
Abstract
Scene-based wavefront sensing currently uses the periodic-correlation algorithm based on fast Fourier transforms. However, when the object scene contains features at the field edges, the performance of the algorithm is poor due to the periodicity of fast Fourier transforms, called wraparound effect. In this paper, we propose an algorithm based on the gradient cross-correlation. Both simulation and experiment results show its dramatic effectiveness against the wraparound effect, and a considerable improvement is obtained in image resolution with closed loop adaptive optics correction.
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30
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Liu P, Li P, Lei T, Qu L, Huang H, Mu Q. Acute lymphoblastic leukemia following temozolomide treatment in a patient with glioblastoma: A case report and review of the literature. Oncol Lett 2018; 15:8663-8668. [PMID: 29805603 DOI: 10.3892/ol.2018.8422] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 09/22/2016] [Indexed: 01/24/2023] Open
Abstract
Temozolomide (TMZ) is a second-generation oral alkylating agent that functions against a number of central nervous system neoplasms, and is generally used to treat high-grade gliomas, including anaplastic astrocytoma and glioblastoma multiforme. Therapy-related secondary myelodysplastic syndrome and acute myeloid leukemia have been reported in patients following prolonged exposure to TMZ. However, TMZ-related acute lymphoblastic leukemia (ALL) is extremely rare. The present study describes the case of an 11-year-old boy with a 3-day history of generalized tonic-clonic seizures and a contrast-enhanced lesion in the left temporooccipital region with focal cystic degeneration, as detected by magnetic resonance imaging. The patient underwent craniotomy and gross-total resection andpathological analysis confirmed the diagnosis of giant cell glioblastoma. Postoperatively, the patient received TMZ-based concurrent chemoradiation during radiotherapy, and developed B-cell ALL 6 months following TMZ treatment. A thorough literature search identified only six published cases of TMZ-related ALL. The chemotherapeutic efficacy of TMZ has been identified, however, its leukemogenic potential should be emphasized among practitioners and patients. Further studies are required to determine the specific pathogenic mechanism of TMZ-related ALL. Close hematological monitoring of patients following TMZ treatment is vital and a high index of suspicion is necessary.
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Affiliation(s)
- Pengfei Liu
- Department of Neurosurgery The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China.,Department of Neurosurgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China.,Department of Neurosurgery, Guangdong 999 Brain Hospital, Guangzhou, Guangdong 510510, P.R. China
| | - Peiwen Li
- Department of Neurosurgery The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Ting Lei
- Department of Neurosurgery The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Limei Qu
- Department of Pathology, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Haiyan Huang
- Department of Neurosurgery The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Qingchun Mu
- Department of Neurosurgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
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Li G, Zhang C, Sun Y, Mu Q, Huang H. Xanthogranulomatous pituitary adenoma: A case report and literature review. Mol Clin Oncol 2018; 8:445-448. [PMID: 29456852 DOI: 10.3892/mco.2018.1547] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 11/17/2017] [Indexed: 11/05/2022] Open
Abstract
Xanthogranuloma, also referred to as cholesterol granuloma or xanthogranulomatous reaction, is a granulomatous lesion that is infrequently found in the sellar and parasellar regions. Xanthogranulomatous pituitary adenoma is relatively rare and, thus, the etiology, diagnosis, management and prognosis of this condition remain incompletely understood. We herein report the case of a 56-year-old female patient who presented to our institution with intermittent headache, vomiting and distending pain in the bilateral orbital regions. Brain magnetic resonance imaging revealed a sellar mass with a heterogeneous signal. The mass was subtotally resected, and histopathological examination confirmed the diagnosis of xanthogranulomatous pituitary adenoma. Although the patient's symptoms were relieved following surgical treatment, intractable hyponatremia and diabetes insipidus developed and she received hormone replacement therapy. At the last follow-up (November 2016), the patient remained recurrence-free. A total of 14 cases of pituitary adenoma with concomitant xanthogranuloma were identified in the literature, and the clinical and radiological manifestations are discussed. Sellar xanthogranuloma is usually associated with craniopharyngioma or Rathke's cleft cyst; however, it may also occur in isolation. Xanthogranulomatous pituitary adenomas are infrequent, making their diagnosis challenging. Surgical resection is the preferred treatment, and attention should be paid to postoperative hypopituitarism and development of diabetes insipidus.
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Affiliation(s)
- Guihong Li
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Chaochao Zhang
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yuxue Sun
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Qingchun Mu
- Department of Neurosurgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Haiyan Huang
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
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Cheng Y, Li Y, Ma C, Song Y, Xu H, Yu H, Xu S, Mu Q, Li H, Chen Y, Zhao G. Arsenic trioxide inhibits glioma cell growth through induction of telomerase displacement and telomere dysfunction. Oncotarget 2017; 7:12682-92. [PMID: 26871293 PMCID: PMC4914314 DOI: 10.18632/oncotarget.7259] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 01/24/2016] [Indexed: 12/22/2022] Open
Abstract
Glioblastomas are resistant to many kinds of treatment, including chemotherapy, radiation and other adjuvant therapies. As2O3 reportedly induces ROS generation in cells, suggesting it may be able to induce telomerase suppression and telomere dysfunction in glioblastoma cells. We show here that As2O3 induces ROS generation as well as telomerase phosphorylation in U87, U251, SHG4 and C6 glioma cells. It also induces translocation of telomerase from the nucleus to the cytoplasm, thereby decreasing total telomerase activity. These effects of As2O3 trigger an extensive DNA damage response at the telomere, which includes up-regulation of ATM, ATR, 53BP1, γ-H2AX and Mer11, in parallel with telomere fusion and 3′-overhang degradation. This ultimately results in induction of p53- and p21-mediated cell apoptosis, G2/M cell cycle arrest and cellular senescence. These results provide new insight into the antitumor effects of As2O3 and can perhaps contribute to solving the problem of glioblastoma treatment resistance.
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Affiliation(s)
- Ye Cheng
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P. R. China
| | - Yunqian Li
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P. R. China
| | - Chengyuan Ma
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P. R. China
| | - Yang Song
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P. R. China
| | - Haiyang Xu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P. R. China
| | - Hongquan Yu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P. R. China
| | - Songbai Xu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P. R. China
| | - Qingchun Mu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P. R. China
| | - Haisong Li
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P. R. China
| | - Yong Chen
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P. R. China
| | - Gang Zhao
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, P. R. China
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Teng S, Guo Z, Peng H, Xing G, Chen H, He B, McClure M, Mu Q. High-frequency repetitive transcranial magnetic stimulation over the left DLPFC for major depression: Session-dependent efficacy: A meta-analysis. Eur Psychiatry 2017; 41:75-84. [DOI: 10.1016/j.eurpsy.2016.11.002] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 11/02/2016] [Accepted: 11/02/2016] [Indexed: 01/18/2023] Open
Abstract
AbstractBackgroundDepression is a major debilitating psychiatric disorder. Current antidepressant drugs are often associated with side effects or treatment resistance. The aim of this meta-analysis was to evaluate therapeutic effects of high-frequency repetitive transcranial magnetic stimulation (HF-rTMS) in major depression (MD).MethodsThe medical data bases of PubMed, Medline, Embase and Cochrane Central Register were searched for randomized controlled trials (RCTs) reporting the therapeutic effects of high-frequency rTMS for depression, which were published in English between January 1990 and June 2016. The index terms were “depress*”, “depression” and “transcranial magnetic stimulation”. Depression outcome data of different sessions (5, 10, 15, and 20 sessions of rTMS treatment) were extracted and synthesized by calculating standardized mean difference (SMD) with 95% confidence intervals (CI) by using a random-effect model. Within each session group, the subgroup analyses based on the number of pulses (≤ 1000, 1200–1500, 1600–1800, and 2000–3000) were also conducted.ResultsThirty RCTs with a total of 1754 subjects including 1136 in the rTMS group and 618 in the sham group were included in this meta-analysis. rTMS had a significant overall therapeutic effect on depression severity scores (SMD = −0.73, P < 0.00001). The five, 10, 15, 20 sessions of rTMS treatments yielded the significant mean effect sizes of −0.43, −0.60, −1.13, and −2.74, respectively. In the four groups (5, 10, 15, 20 sessions), the maximal mean effect size was all obtained in the subgroup of 1200–1500 pulses per day (−0.97, −1.14, −1.91, −5.47; P < 0.05).ConclusionsThe increasing of HF-rTMS sessions is associated with the increased efficacy of HF-rTMS in reducing depressed patients’ symptom severity. A total number of pulses of 1200–1500 per day appear to deliver the best antidepressant effects of HF-rTMS.
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Han X, Mu Q, Liu C, Lu X, Yin D, Ren K, Wu G. Covered Stent Implantation in the Treatment of Tracheal Rupture after Thyroidectomy. J Vasc Interv Radiol 2016; 27:1758-1761. [DOI: 10.1016/j.jvir.2016.04.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/15/2016] [Accepted: 04/15/2016] [Indexed: 12/01/2022] Open
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Zeng B, Yan HD, Huang LK, Wang YC, Wu JH, Huang X, Zhang AL, Wang CR, Mu Q. Orthogonal design in the optimization of a start codon targeted (SCoT) PCR system in Roegneria kamoji Ohwi. Genet Mol Res 2016; 15:gmr-15-gmr15048968. [PMID: 27813608 DOI: 10.4238/gmr15048968] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Roegneria kamoji Ohwi is an excellent forage grass due to its high feeding value and high resistance to some biotic and abiotic stresses. However, the start codon targeted (SCoT) polymorphism has not been conducted on R. kamoji. In this study, an orthogonal L16 (45) design was employed to investigate the effects of five factors (Mg2+, dNTPs, Taq DNA polymerase, primer, and template DNA) on the polymerase chain reaction (PCR) to determine the optimal SCoT-PCR system for R. kamoji. The results showed that the most suitable conditions for SCoT-PCR in R. kamoji included 1.5 mM Mg2+, 0.15 mM dNTPs, 1.0 U Taq DNA polymerase, 0.4 pM primer, and 40 ng template DNA. SCoT primers 39 and 41 were used to verify the stability of the optimal reaction system, and amplification bands obtained from diverse samples were found to be clear, rich, and stable in polymorphisms, indicating that this reaction system can be used for SCoT-PCR analysis of R. kamoji. We have developed a simple and rapid way to study the mutual effects of factors and to obtain positive results through the use of an orthogonal design L16 (45) to optimize the SCoT-PCR system. This method may provide basic information for molecular marker-assisted breeding and analyses of genetic diversity in R. kamoji.
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Affiliation(s)
- B Zeng
- Department of Animal Science, Southwest University, Rongchang, Chongqing Province, China
| | - H D Yan
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - L K Huang
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Y C Wang
- Animal Husbandry and Veterinary Research Institute of Guizhou Province, Guizhou, Guiyang, China
| | - J H Wu
- Guizhou Institute of Prataculture, Guizhou, Dushan, China
| | - X Huang
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - A L Zhang
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - C R Wang
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Q Mu
- Guizhou Institute of Prataculture, Guizhou, Dushan, China
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Rao SS, Mu Q, Zeng Y, Cai PC, Liu F, Yang J, Xia Y, Zhang Q, Song LJ, Zhou LL, Li FZ, Lin YX, Fang J, Greer PA, Shi HZ, Ma WL, Su Y, Ye H. Calpain-activated mTORC2/Akt pathway mediates airway smooth muscle remodelling in asthma. Clin Exp Allergy 2016; 47:176-189. [PMID: 27649066 DOI: 10.1111/cea.12805] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 07/20/2016] [Accepted: 08/09/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Allergic asthma is characterized by inflammation and airway remodelling. Airway remodelling with excessive deposition of extracellular matrix (ECM) and larger smooth muscle mass are correlated with increased airway responsiveness and asthma severity. Calpain is a family of calcium-dependent endopeptidases, which plays an important role in ECM remodelling. However, the role of calpain in airway smooth muscle remodelling remains unknown. OBJECTIVE To investigate the role of calpain in asthmatic airway remodelling as well as the underlying mechanism. METHODS The mouse asthma model was made by ovalbumin sensitization and challenge. Calpain conditional knockout mice were studied in the model. Airway smooth muscle cells (ASMCs) were isolated from smooth muscle bundles in airway of rats. Cytokines IL-4, IL-5, TNF-α, and TGF-β1, and serum from patients with asthma were selected to treated ASMCs. Collagen-I synthesis, cell proliferation, and phosphorylation of Akt in ASMCs were analysed. RESULTS Inhibition of calpain using calpain knockout mice attenuated airway smooth muscle remodelling in mouse asthma models. Cytokines IL-4, IL-5, TNF-α, and TGF-β1, and serum from patients with asthma increased collagen-I synthesis, cell proliferation, and phosphorylation of Akt in ASMCs, which were blocked by the calpain inhibitor MDL28170. Moreover, MDL28170 reduced cytokine-induced increases in Rictor protein, which is the most important component of mammalian target of rapamycin complex 2 (mTORC2). Blockage of the mTORC2 signal pathway prevented cytokine-induced phosphorylation of Akt, collagen-I synthesis, and cell proliferation of ASMCs and attenuated airway smooth muscle remodelling in mouse asthma models. CONCLUSIONS AND CLINICAL RELEVANCE Our results indicate that calpain mediates cytokine-induced collagen-I synthesis and proliferation of ASMCs via the mTORC2/Akt signalling pathway, thereby regulating airway smooth muscle remodelling in asthma.
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Affiliation(s)
- S-S Rao
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Q Mu
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Y Zeng
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - P-C Cai
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - F Liu
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - J Yang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Y Xia
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Q Zhang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - L-J Song
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - L-L Zhou
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - F-Z Li
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Y-X Lin
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - J Fang
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - P A Greer
- Queen's University Cancer Research Institute, Kingston, ON, Canada
| | - H-Z Shi
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - W-L Ma
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases, Ministry of Health of China, Wuhan, Hubei, China
| | - Y Su
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA
| | - H Ye
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Key Laboratory of Pulmonary Diseases, Ministry of Health of China, Wuhan, Hubei, China
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Li G, Yu F, Lei T, Gao H, Li P, Sun Y, Huang H, Mu Q. Bone marrow mesenchymal stem cell therapy in ischemic stroke: mechanisms of action and treatment optimization strategies. Neural Regen Res 2016; 11:1015-24. [PMID: 27482235 PMCID: PMC4962565 DOI: 10.4103/1673-5374.184506] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Animal and clinical studies have confirmed the therapeutic effect of bone marrow mesenchymal stem cells on cerebral ischemia, but their mechanisms of action remain poorly understood. Here, we summarize the transplantation approaches, directional migration, differentiation, replacement, neural circuit reconstruction, angiogenesis, neurotrophic factor secretion, apoptosis, immunomodulation, multiple mechanisms of action, and optimization strategies for bone marrow mesenchymal stem cells in the treatment of ischemic stroke. We also explore the safety of bone marrow mesenchymal stem cell transplantation and conclude that bone marrow mesenchymal stem cell transplantation is an important direction for future treatment of cerebral ischemia. Determining the optimal timing and dose for the transplantation are important directions for future research.
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Affiliation(s)
- Guihong Li
- Department of Neurosurgery, the First Hospital of Jilin University, Changchun, Jilin Province, China; Department of Neurosurgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang Province, China
| | - Fengbo Yu
- School of Pharmacy, Mudanjiang Medical University, Mudanjiang, Heilongjiang Province, China
| | - Ting Lei
- Department of Neurosurgery, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Haijun Gao
- Department of Neurosurgery, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Peiwen Li
- Department of Neurosurgery, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Yuxue Sun
- Department of Neurosurgery, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Haiyan Huang
- Department of Neurosurgery, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Qingchun Mu
- Department of Neurosurgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang Province, China
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Yu F, Li G, Gao J, Sun Y, Liu P, Gao H, Li P, Lei T, Chen Y, Cheng Y, Zhai X, Sayari AJ, Huang H, Mu Q. SPOCK1 is upregulated in recurrent glioblastoma and contributes to metastasis and Temozolomide resistance. Cell Prolif 2016; 49:195-206. [PMID: 26923184 DOI: 10.1111/cpr.12241] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 11/11/2015] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Glioblastoma multiforme (GBM) is the most aggressive brain tumour type in humans. Its poor prognosis is largely attributed to its invasiveness and high rate of recurrence. Recurring GBM is commonly resistant to chemotherapeutic drugs, making it specially difficult to treat. Recent studies have revealed that matricellular glycoprotein SPOCK1 to be upregulated in several cancer types and to be specifically expressed in invasive GBM, but not in other types of non-invasive brain tumour, which prompted us to study the mechanism of action of SPOCK1 in invasion, recurrence and drug resistance of GBM cells. MATERIALS AND METHODS SPOCK1 expression in GBM tissues was evaluated using qPCR, Western blotting and immunohistochemical staining. Cell migration was tested by the wound healing method and cell invasion was assessed using transwell plates with Matrigel coating. Western blotting was performed for E-cadherin, vimentin, N-cadherin, p-Akt and Akt. Cell viability was examined using the MTT assay. RESULTS We found that the expression of SPOCK1 was significantly upregulated in recurrent GBM. We also demonstrated that SPOCK1 positively regulated migration, invasion and EMT process of GBM cells. Furthermore, SPOCK1 mediated TMZ resistance in GBM, as knockdown of SPOCK1 expression in TMZ-resistant GBM cells substantially sensitized these cells to TMZ. CONCLUSION SPOCK1 results were positive and it mediated TMZ resistance in GBM. In addition, SPOCK1 regulated invasion and TMZ resistance in GBM cells via the Akt signalling pathway.
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Affiliation(s)
- Fengbo Yu
- School of Pharmacy, Mudanjiang Medical University, Mudanjiang, Heilongjiang Province, 157011, China
| | - Guihong Li
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin Province, 130021, China
| | - Junxia Gao
- Department of Emergency, Hongqi hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang Province, 157011, China
| | - Yuxue Sun
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin Province, 130021, China
| | - Pengfei Liu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin Province, 130021, China
| | - Haijun Gao
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin Province, 130021, China
| | - Peiwen Li
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin Province, 130021, China
| | - Ting Lei
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin Province, 130021, China
| | - Yong Chen
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin Province, 130021, China
| | - Ye Cheng
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin Province, 130021, China
| | - Xiao Zhai
- Department of Orthopaedics, Changhai Hospital Affiliated to the Second Military Medical University, Shanghai, 200433, China
| | - Arash J Sayari
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, 90033, USA
| | - Haiyan Huang
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin Province, 130021, China
| | - Qingchun Mu
- Department of Neurosurgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang Province, 157011, China
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Xiao S, Mu Q, Wan Y, Xue M. Spontaneous renal hemorrhage caused by invasive mole: a case report. EUR J GYNAECOL ONCOL 2016; 37:417-419. [PMID: 27352577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
CASE The authors report a case with spontaneous renal hemorrhage caused by invasive mole. The diagnosis was gestational trophoblastic disease (GTD), with metastasis to brain, kidneys, and lungs at Stage IV. The patient was given etoposide-methotrexate-actinomycin D plus cyclophosphamide-vincristine (EMACO) treatment regimen for 11 times including three times with consolidation chemotherapies. Laparoscopically-assisted vaginal hysterectomy (LAVH) + laparoscopic-assisted left renal excision + evacuation of the left perirenal hematoma were performed during the eighth chemotherapy. CONCLUSION Post-operational pathological examination revealed trophoblasts within the lesions present in uterine fundus and the residue images of a few trophoblasts present in the left renal mass.
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Zhai X, Wang Y, Mu Q, Chen X, Huang Q, Wang Q, Li M. Methodological Reporting Quality of Randomized Controlled Trials in 3 Leading Diabetes Journals From 2011 to 2013 Following CONSORT Statement: A System Review. Medicine (Baltimore) 2015; 94:e1083. [PMID: 26166088 PMCID: PMC4504558 DOI: 10.1097/md.0000000000001083] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
To appraise the current reporting methodological quality of randomized clinical trials (RCTs) in 3 leading diabetes journals.We systematically searched the literature for RCTs in Diabetes Care, Diabetes and Diabetologia from 2011 to 2013.Characteristics were extracted based on Consolidated Standards of Reporting Trials (CONSORT) statement. Generation of allocation, concealment of allocation, intention-to-treat (ITT) analysis and handling of dropouts were defined as primary outcome and "low risk of bias." Sample size calculation, type of intervention, country, number of patients, funding source were also revealed and descriptively reported. Trials were compared among journals, study years, and other characters.A total of 305 RCTs were enrolled in this study. One hundred eight (35.4%) trials reported adequate generation of allocation, 87 (28.5%) trials reported adequate concealment of allocation, 53 (23.8%) trials used ITT analysis, and 130 (58.3%) trials were adequate in handling of dropouts. Only 15 (4.9%) were "low risk of bias" trials. Studies at a large scale (n > 100) or from European presented with more "low risk of bias" trials than those at a small scale (n ≤ 100) or from other regions. No improvements were found in these 3 years.This study shows that methodological reporting quality of RCTs in the major diabetes journals remains suboptimal. It can be further improved to meet and keep up with the standards of the CONSORT statement.
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Affiliation(s)
- Xiao Zhai
- From Graduate Management Unit, Changhai Hospital Affiliated to the Second Military Medical University, Shanghai, PR China (XZ and YW); Department of Orthopedics, Changhai Hospital Affiliated to the Second Military Medical University, Shanghai, PR China (XZ and ML); Department of Endocrinology, Changhai Hospital Affiliated to the Second Military Medical University, Shanghai, PR China (QH and QW); Department of Neurosurgery, the First Hospital of Jilin University, Jilin, PR China (QM); and Department of Neurosurgery, Hongqi Hospital of Mudanjiang Medical University, Heilongjiang, PR China (QM)
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Mu Q, Gao H, Liu P, Hu X, Zheng XU, Li P, Lei T, Sun Y, Zhao G, Huang H, Hong X. Olfactory ensheathing cell tumor: A case report and review of the literature. Oncol Lett 2015; 9:2078-2084. [PMID: 26137016 DOI: 10.3892/ol.2015.3042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 02/13/2015] [Indexed: 11/06/2022] Open
Abstract
Olfactory ensheathing cell tumors (OECTs) are rare malignancies that occur in the anterior fossa. Little is known with regard to their clinical, radiological and immunohistochemical characteristics. The current study reports the case of a 20-year-old male with an OECT, who presented with a severe headache and a generalized convulsion. Cranial magnetic resonance imaging revealed heterogeneous enhancement of the tumor in the left anterior fossa. Complete removal of the tumor via a left frontal craniotomy was conducted, which relieved the patient's headache; however, this resulted in left-sided anosmia that remained during the two-month follow-up. The tumor was immunopositive for vimentin and S-100, and immunonegative for epithelial membrane antigen and Leu-7. The clinical data, imaging features, intraoperative findings and immunohistochemical characteristics of an additional seven cases reported in the literature are also reviewed and analyzed, providing important clinical information for the pre-operative diagnosis and intraoperative removal of OECTs.
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Affiliation(s)
- Qingchun Mu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China ; Department of Neurosurgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, P.R. China
| | - Haijun Gao
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Pengfei Liu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Xitong Hu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - X U Zheng
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Peiwen Li
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Ting Lei
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Yuxue Sun
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Gang Zhao
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Haiyan Huang
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
| | - Xinyu Hong
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130000, P.R. China
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Mu Q, Yu J, Qu L, Hu X, Gao H, Liu P, Zheng X, Sun Y, Huang H. Spindle cell oncocytoma of the adenohypophysis: two case reports and a review of the literature. Mol Med Rep 2015; 12:871-6. [PMID: 25777996 PMCID: PMC4438875 DOI: 10.3892/mmr.2015.3476] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 01/26/2015] [Indexed: 11/06/2022] Open
Abstract
Spindle cell oncocytoma (SCO) of the adenohy-pophysis is a rare tumor in the sellar region. Due to its rarity, little information is available regarding SCO. It is often misdiagnosed as another type of sellar tumor. In the present study, two cases of SCO were reported. One patient was a 35-year-old female presenting with decreased visual acuity, amenorrhea and lactation. The other patient was a 62-year-old female with no clear symptoms or signs. Cranial magnetic resonance imaging (MRI) revealed a suprasellar mass with marked homogeneous enhancement in the two cases. A craniotomy was performed to completely resect the tumors. The tumors were immunopositive for vimentin, epithelial membrane antigen (EMA), S-100 and thyroid transcription factor-1 (TTF-1). The tumors were pathologically diagnosed as SCO. No recurrence occurred during the follow-up period of 15–21 months. In the present study, the literature was reviewed and the clinical data, imaging features, intraoperative findings and recurrence of 24 cases were analyzed in the literature as well as the present two cases. The average age of the SCO patients was 58.5 years and no gender preference was observed for the disease. The tumor exhibited homogeneous enhancement on the MRI. The intraoperative assessment revealed that the tumor had a rich blood supply and the SCO tumors were immunopositive for vimentin, S-100, EMA and TTF-1. These findings provided valuable clinical data for the preoperative diagnosis and surgical removal of SCO tumors.
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Affiliation(s)
- Qingchun Mu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Jinlu Yu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Limei Qu
- Department of Pathology, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xitong Hu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Haijun Gao
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Pengfei Liu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xu Zheng
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yuxue Sun
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Haiyan Huang
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
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Mu Q, Wang L, Yu F, Gao H, Lei T, Li P, Liu P, Zheng X, Hu X, Chen Y, Jiang Z, Sayari AJ, Shen J, Huang H. Imp2 regulates GBM progression by activating IGF2/PI3K/Akt pathway. Cancer Biol Ther 2015; 16:623-33. [PMID: 25719943 DOI: 10.1080/15384047.2015.1019185] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Glioblastomas multiforme (GBM) are the most frequently occurring malignant brain cancers. Treatment for GBM consists of surgical resection and subsequent adjuvant radiation therapy and chemotherapy. Despite this, GBM patient survival is limited to 12-15 months, and researchers are continually trying to develop improved therapy options. Insulin-like growth factor 2 mRNA-binding protein 2 (Imp2) is known to be upregulated in many cancers and is known to regulate the signaling activity of insulin-like growth factor 2 (IGF2). However, relatively little is known about its role in malignant development of GBM. In this study, we first found Imp2 is upregulated in GBM tissues by using clinical samples and public database search. Studies with loss and gain of Imp2 expression in in vitro GBM cell culture system demonstrated the role of Imp2 in promoting GBM cell proliferation, migration, invasion and epithelial-to-mesenchymal transition (EMT). Additionally, our results show that Imp2 regulates the activity of IGF2, which further activates PI3K/Akt signaling, thereby to promote GBM malignancy. Inhibition of Imp2 was also found to sensitize GBM to temozolomide treatment. These observations add to the current knowledge of GBM biology, and may prove useful in development of more effective GBM therapy.
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Key Words
- Akt
- E-cadherin
- EMT
- EMT, epithelial-mesenchymal transition
- GBM
- GBM, glioblastomas multiforme
- GBM-P, semi-established GBM primary cells
- GBM-RE, semi-established recurrent TMZ-resistant GBM primary cells
- IGF2
- IGF2, insulin-like growth factor 2
- Imp2
- Imp2, insulin-like growth factor 2 mRNA-binding protein 2
- KD, knockdown
- N-cadherin
- OE, overexpressing
- PI3K
- PI3K, phosphatidyl inositol 3-kinase
- TMZ, temozolomide
- Temozolomide
- Vimentin
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Affiliation(s)
- Qingchun Mu
- a Department of Neurosurgery; The First Hospital of Jilin University ; Changchun , Jilin , China
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Mu Q, Liu P, Hu X, Gao H, Zheng X, Huang H. Neuroprotective effects of Buyang Huanwu decoction on cerebral ischemia-induced neuronal damage. Neural Regen Res 2014; 9:1621-7. [PMID: 25368650 PMCID: PMC4211205 DOI: 10.4103/1673-5374.141791] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2014] [Indexed: 02/06/2023] Open
Abstract
Among the various treatment methods for stroke, increasing attention has been paid to traditional Chinese medicines. Buyang Huanwu decoction is a commonly used traditional Chinese medicine for the treatment of stroke. This paper summarizes the active components of the Chinese herb, which is composed of Huangqi (Radix Astragali seu Hedysari), Danggui (Radix Angelica sinensis), Chishao (Radix Paeoniae Rubra), Chuanxiong (Rhizoma Ligustici Chuanxiong), Honghua (Flos Carthami), Taoren (Semen Persicae) and Dilong (Pheretima), and identifies the therapeutic targets and underlying mechanisms that contribute to the neuroprotective properties of Buyang Huanwu decoction.
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Affiliation(s)
- Qingchun Mu
- First Hospital of Bethune, Jilin University, Changchun, Jilin Province, China ; Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang Province, China
| | - Pengfei Liu
- First Hospital of Bethune, Jilin University, Changchun, Jilin Province, China
| | - Xitong Hu
- First Hospital of Bethune, Jilin University, Changchun, Jilin Province, China
| | - Haijun Gao
- First Hospital of Bethune, Jilin University, Changchun, Jilin Province, China
| | - Xu Zheng
- First Hospital of Bethune, Jilin University, Changchun, Jilin Province, China
| | - Haiyan Huang
- First Hospital of Bethune, Jilin University, Changchun, Jilin Province, China
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Sun X, Mu Q, Jiang D, Wang C, Wang XC, Fang JG. A new strategy employed for identification of sweet orange cultivars with RAPD markers. Genet Mol Res 2012; 11:2071-80. [PMID: 22911591 DOI: 10.4238/2012.august.6.11] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We optimized RAPD techniques by increasing the length of RAPD primers and performing a strict screening of PCR annealing temperature to distinguish 60 sweet orange cultivars from the Research Institute of Pomology at the Chinese Academy of Agricultural Sciences. A new approach called cultivar identification diagram (CID) was used to improve the efficiency of RAPD markers for cultivar identification. Thirteen effective primers were first screened from 54 RAPD arbitrary 11-mer primers based on their amplification products and amplified polymorphic bands; they were then used for PCR amplification of all 60 cultivars. All cultivars were manually and completely separated by the polymorphic bands appearing in DNA fingerprints from 13 primers; a CID of the 60 sweet orange cultivars was then constructed. This CID separated all the cultivars from each other, based on the polymorphic bands; the corresponding primers were marked in the correct positions on the sweet orange CID. The CID strategy facilitates the identification of fruit cultivars with DNA markers. This CID of sweet orange cultivars will be very useful for the protection of cultivar rights and for early identification of seedlings in the nursery industry.
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Affiliation(s)
- X Sun
- College of Horticulture, Nanjing Agricultural University, Nanjing, P.R. China
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Zhang Y, Mu Q, Zhou H, Vrijens K, Roussel MF, Jiang G, Yan B. Binding of carbon nanotube to BMP receptor 2 enhances cell differentiation and inhibits apoptosis via regulating bHLH transcription factors. Cell Death Dis 2012; 3:e308. [PMID: 22573038 PMCID: PMC3366082 DOI: 10.1038/cddis.2012.48] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Biomaterials that can drive stem cells to an appropriate differentiation level and decrease apoptosis of transplanted cells are needed in regenerative medicine. Nanomaterials are promising novel materials for such applications. Here we reported that carboxylated multiwalled carbon nanotube (MWCNT 1) promotes myogenic differentiation of mouse myoblast cells and inhibits cell apoptosis under the differentiation conditions by regulating basic helix-loop-helix transcription factors. MWCNT 1 attenuates bone morphogenetic protein receptor (BMPR) signaling activity by binding to BMPR2 and attenuating the phosphorylation of BMPR1. This molecular understanding allowed us to tune stem cell differentiation to various levels by chemical modifications, demonstrating human control of biological activities of nanoparticles and opening an avenue for potential applications of nanomaterials in regenerative medicine.
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Affiliation(s)
- Y Zhang
- School of Pharmaceutical Sciences, Shandong University, Jinan 250100, China
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Shengbo Y, Qingyan Z, He H, Donge C, Mu Q, Congxin H. e0249 Prognostic value of premature ventricular contraction originating from different location for patients with chronic heart failure. Heart 2010. [DOI: 10.1136/hrt.2010.208967.249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Peng X, Lu Z, Mu Q, Hou Y. [Epileptic seizure-like effect of Sophora alkaloid sophoridine on experimental animals]. Zhongguo Zhong Yao Za Zhi 2010; 35:122-125. [PMID: 20349731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
OBJECTIVE To investigate the epileptic seizure-like effect of Sophora alkaloid sophoridine on electroencepholography (EEG) and its possible characteristic and the mechanism of the seizure-like effect. METHOD Chronic electron implantation was employed for the intracranial electroencepholography (IEEG) recording in rat, and the traditional anti-seizure drugs were for the mechanism study in mice. RESULT Compared with the medial perforant path (PP) area and the temporal cortex (TC), the granule cells in hippocampus dentate gyrus (DG) area is more sensitive in the kindling effect by sc sophoridine. Under-threshold hypnotic dosage of diazepam and the hypnotic dosage of pentobarbital sodium can block the sophoridine kinded seizure in mice, but the phenytoin sodium can not block the seizure, also the dosage of it can block the maximal electroconvulsive shock (MES) seizure. CONCLUSION Sophoridine-induced synchronous oscillations in the hippocampus could elicit the generation and development of seizure. And the hippocampus might play the crucial role and be the original part of the seizure. Sophoridine kinded seizure might belong to clonic seizures, and the diazepam is the ideal agent for the treatment.
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Affiliation(s)
- Xiaodong Peng
- Department of Pharmacology, School of Basic Medicine, Ningxia Medical University, Yinchuan 750004, China.
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Chang H, Xu J, Mu Q, Qin C, Zhang Z, Wu T. Occult hepatocellular carcinoma: a case report of a special icteric-type hepatoma and literature review. Eur J Cancer Care (Engl) 2009; 19:690-3. [PMID: 19659667 DOI: 10.1111/j.1365-2354.2008.01035.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hepatocellular carcinoma (HCC) presenting with obstructive jaundice due to bile duct tumour thrombi is classified as icteric-type hepatoma. This report describes a case of unusual icteric-type HCC with common bile duct thrombus, which is herein named 'occult HCC', as no detectable primary lesion in liver was defined pre-operatively and intra-operatively. A thrombectomy followed by a T biliary drainage tube placement was carried out, and the final post-operative pathological evaluation demonstrated the tumour thrombus originated from a moderately differentiated HCC. The clinicopathological features and logical clinical interventions of this rare type of HCC were discussed with a review of the literature. The HCC patients with bile duct thrombi receiving palliative biliary drainage alone had a poor outcome. With respect to improving prognosis, a curative resection of primary HCC and tumour thrombi was suggested on the basis of performing an intensive post-operative monitoring for early detection of primary liver lesion.
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Affiliation(s)
- H Chang
- Department of Hepatobiliary & Pancreatic Surgery, Shandong Provincial Hospital, Shandong University School of Medicine, Shandong, China.
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Hu L, Xuan L, Li D, Cao Z, Mu Q, Liu Y, Peng Z, Lu X. Wavefront correction based on a reflective liquid crystal wavefront sensor. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1464-4258/11/1/015511] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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