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Liu Q, Lun L, Meng S, Wang Z, Qu Y, Huang X, Chen X, Wang J, Zhang J, Wang K, Wu R, Zhang Y, Yi J, Luo J. Feasibility of Omitting Contralateral Neck Irradiation in Patients with Node-Negative Sinonasal Squamous Cell Carcinoma Crossing the Midline. Int J Radiat Oncol Biol Phys 2023; 117:e600. [PMID: 37785813 DOI: 10.1016/j.ijrobp.2023.06.1961] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) This study aims to analyze the nodal target volume in patients with node-negative SNSCC crossing the midline. MATERIALS/METHODS One hundred and four patients with node-negative advanced sinonasal squamous cell carcinoma (SNSCC) crossing the midline were included. Survival rates were estimated and compared between treatment groups. RESULTS Sixty-four patients received contralateral ENI (contralateral ENI group), while forty patients did not (non-contralateral ENI group). The median follow-up time was 89.99 and 95.01 months in the contralateral and non-contralateral ENI groups, respectively. At 5 years, the regional relapse-free survival and contralateral regional relapse-free survival were 57.68% vs. 55.83% (p = 0.372), and 57.68% vs. 61.62% (p = 0.541), in contralateral ENI group vs. non-contralateral ENI group, respectively. Five-year overall survival, local relapse-free survival, and distant metastasis-free survival were similar in the two groups (all p > 0.05). CONCLUSION In patients with node-negative SNSCC crossing the midline, omission of contralateral ENI did not affect regional control and survival outcomes on the premise of receiving ipsilateral ENI covering at least levels Ib and II.
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Affiliation(s)
- Q Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - L Lun
- Department of Head and Neck Radiotherapy, Harbin Medical University Cancer Hospital, Harbin, China
| | - S Meng
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Qu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Huang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Chen
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Zhang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - K Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - R Wu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Zhang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Yi
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Luo
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Hu L, Shi J, Shen D, Zhai X, Liang D, Wang J, Xie C, Xia Z, Cui J, Liu F, Du S, Meng S, Piao H. Osimertinib induces paraptosis and TRIP13 confers resistance in glioblastoma cells. Cell Death Discov 2023; 9:333. [PMID: 37669963 PMCID: PMC10480197 DOI: 10.1038/s41420-023-01632-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 06/18/2022] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/07/2023] Open
Abstract
The efficacy of osimertinib, a third-generation epidermal growth factor receptor tyrosine kinase inhibitor, has been evaluated in glioblastoma (GBM) through preclinical and clinical trials. However, the underlying mechanism of osimertinib-induced GBM cell death and the underlying resistance mechanism to osimertinib remains unclear. Here, we demonstrate that Osimertinib induces paraptosis in GBM cells, as evidenced by the formation of cytoplasmic vacuoles, accumulation of ubiquitinated proteins, and upregulation of endoplasmic reticulum (ER) stress markers like CHOP. Additionally, neither apoptosis nor autophagy was involved in the osimertinib-induced cell death. RNAseq analysis revealed ER stress was the most significantly downregulated pathway upon exposure to osimertinib. Consistently, pharmacologically targeting the PERK-eIF2α axis impaired osimertinib-induced paraptosis. Notably, we show that the expression of thyroid receptor-interacting protein 13 (TRIP13), an AAA+ATPase, alleviated osimertinib-triggered paraptosis, thus conferring resistance. Intriguingly, MK-2206, an AKT inhibitor, downregulated TRIP13 levels and synergized with Osimertinib to suppress TRIP13-induced high GBM cell growth in vitro and in vivo. Together, our findings reveal a novel mechanism of action associated with the anti-GBM effects of osimertinib involving ER stress-regulated paraptosis. Furthermore, we identify a TRIP13-driven resistance mechanism against Osimertinib in GBM and offer a combination strategy using MK-2206 to overcome such resistance.
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Affiliation(s)
- Lulu Hu
- Institute of Cancer Stem Cell, Dalian Medical University, 116044, Dalian, China
- Department of Laboratory Medicine, Affiliated Qingdao Central Hospital, Qingdao University, 266000, Qingdao, China
| | - Ji Shi
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, 110042, Shenyang, China
| | - Dachuan Shen
- Department of Oncology, Affliated Zhongshan Hospital of Dalian University, 116001, Dalian, China
| | - Xingyue Zhai
- Clinical Nutrition Department, The Second Hospital of Dalian Medical University, 116023, Dalian, China
| | - Dapeng Liang
- Institute of Cancer Stem Cell, Dalian Medical University, 116044, Dalian, China
| | - Jing Wang
- Institute of Cancer Stem Cell, Dalian Medical University, 116044, Dalian, China
| | - Chunrui Xie
- Institute of Cancer Stem Cell, Dalian Medical University, 116044, Dalian, China
| | - Zhiyu Xia
- Institute of Cancer Stem Cell, Dalian Medical University, 116044, Dalian, China
| | - Jing Cui
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, 110042, Shenyang, China
| | - Feng Liu
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, 110042, Shenyang, China
| | - Sha Du
- Institute of Cancer Stem Cell, Dalian Medical University, 116044, Dalian, China.
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University, 116044, Dalian, China.
| | - Haozhe Piao
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, 110042, Shenyang, China.
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Yu Z, Guo W, Ma X, Zhang B, Dong P, Huang L, Wang X, Wang C, Huo X, Yu W, Yi C, Xiao Y, Yang W, Qin Y, Yuan Y, Meng S, Liu Q, Deng W. Correction: Gamabufotalin, a bufadienolide compound from toad venom, suppresses COX-2 expression through targeting IKKβ/NF-κB signaling pathway in lung cancer cells. Mol Cancer 2023; 22:144. [PMID: 37660130 PMCID: PMC10474616 DOI: 10.1186/s12943-023-01852-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2023] Open
Affiliation(s)
- Zhenlong Yu
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Wei Guo
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Xiaochi Ma
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China.
| | - Baojing Zhang
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Peipei Dong
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Lin Huang
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Xiuli Wang
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Chao Wang
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Xiaokui Huo
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Wendan Yu
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Canhui Yi
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Yao Xiao
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Wenjing Yang
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Yu Qin
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Yuhui Yuan
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Songshu Meng
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
| | - Quentin Liu
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China
- State Key Laboratory of Oncology in South China, Collaborative Innovation Canter of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Wuguo Deng
- Institute of Cancer Stem Cell, College of Pharmacy, Dalian Medical University, Lvshun South Road No 9, 116044, Dalian, China.
- State Key Laboratory of Oncology in South China, Collaborative Innovation Canter of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China.
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Liu CC, Meng S, Ding Y. [Principle and routine operation of laser assisted periodontal surgery]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:498-505. [PMID: 37082858 DOI: 10.3760/cma.j.cn112144-20230228-00063] [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] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Periodontitis is one of the most common infectious oral diseases, which can cause destruction of periodontal supporting tissues and even tooth mobility and loss. Controlling infection, eliminating inflammation, restoring the physiological shape of periodontal tissues, and meeting functional and aesthetic needs are the main goals of periodontal treatment. When periodontitis develops to a more severe stage, surgical treatment is necessary to handle soft and hard tissues for good treatment results. Since the development of the first Nd:YAG laser dedicated to dental medicine by Myers in 1990, over 30 years of clinical and basic research have shown that lasers have tremendous potential in assisting periodontal surgery. This article summarizes the principles and operational routines of laser-assisted periodontal surgery, aiming to provide clinical reference for diagnosis and treatment.
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Affiliation(s)
- C C Liu
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University & National Clinical Research Center for Oral Diseases & State Key Laboratory of Oral Diseases, Chengdu 610041, China
| | - S Meng
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University & National Clinical Research Center for Oral Diseases & State Key Laboratory of Oral Diseases, Chengdu 610041, China
| | - Y Ding
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University & National Clinical Research Center for Oral Diseases & State Key Laboratory of Oral Diseases, Chengdu 610041, China
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Zhang Y, Zhao J, Wang B, Lin Y, Meng S, Luo Y. [Contrast-enhanced ultrasonography with intra-glandular contrast injection can improve the diagnostic accuracy of central compartment lymph node metastasis of thyroid cancer]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:219-224. [PMID: 36946041 PMCID: PMC10034552 DOI: 10.12122/j.issn.1673-4254.2023.02.09] [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] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
OBJECTIVE To investigate the value of lymphatic contrast-enhanced ultrasound (LCEUS) with intra-glandular injection of contrast agent for diagnosis of central compartment lymph node metastasis of thyroid cancer. METHODS From November, 2020 to May, 2022, the patients suspected of having thyroid cancer and scheduled for biopsy at our center received both conventional ultrasound and LCEUS examinations of the central compartment lymph nodes before surgery. All the patients underwent surgical dissection of the lymph nodes. The perfusion features in LCEUS were classified as homogeneous enhancement, heterogeneous enhancement, regular/irregular ring, and non-enhancement. With pathological results as the gold standard, we compared the diagnostic ability of conventional ultrasound and LCEUS for identifying metastasis in the central compartment lymph nodes. RESULTS Forty-nine patients with 60 lymph nodes were included in the final analysis. Pathological examination reported metastasis in 34 of the lymph nodes, and 26 were benign lymph nodes. With ultrasound findings of heterogeneous enhancement, irregular ring and non-enhancement as the criteria for malignant lesions, LCEUS had a diagnostic sensitivity, specificity and accuracy of 97.06%, 92.31% and 95% for diagnosing metastatic lymph nodes, respectively, demonstrating its better performance than conventional ultrasound (P < 0.001). Receiver-operating characteristic curve analysis showed that LCEUS had a significantly greater area under the curve than conventional ultrasound for diagnosing metastatic lymph nodes (94.7% [0.856-0.988] vs 78.2% [0.656-0.878], P=0.003). CONCLUSION LCEUS can enhance the display and improve the diagnostic accuracy of the central compartment lymph nodes to provide important clinical evidence for making clinical decisions on treatment of thyroid cancer.
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Affiliation(s)
- Y Zhang
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J Zhao
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - B Wang
- Department of Surgery, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Lin
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - S Meng
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Luo
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
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Fang K, Du S, Shen D, Xiong Z, Jiang K, Liang D, Wang J, Xu H, Hu L, Zhai X, Jiang Y, Xia Z, Xie C, Jin D, Cheng W, Meng S, Wang Y. SUFU suppresses ferroptosis sensitivity in breast cancer cells via Hippo/YAP pathway. iScience 2022; 25:104618. [PMID: 35800779 PMCID: PMC9253713 DOI: 10.1016/j.isci.2022.104618] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 05/18/2022] [Accepted: 06/10/2022] [Indexed: 11/10/2022] Open
Abstract
Ferroptosis is a new kind of regulated cell death that is characterized by highly iron-dependent lipid peroxidation. Cancer cells differ in their sensitivity to ferroptosis. Here we showed that the Suppressor of fused homolog (SUFU), a critical component in Hedgehog signaling, regulates ferroptosis sensitivity of breast cancer cells. Ectopic SUFU expression suppressed, whereas depletion of SUFU enhanced the sensitivity of breast cancer cells to RSL3-triggered ferroptosis through deregulation of ACSL4. Moreover, SUFU depletion promoted the activation of Yes-associated protein (YAP), thereby increasing the expression of ACSL4. Mechanistically, SUFU is associated with LATS1. Deletion of a region comprising residues 174–385 in SUFU disrupted SUFU binding to LATS1, thus abrogating SUFU-mediated downregulation of the YAP-ACSL4 axis and sensitivity to ferroptosis. Noteworthy, we showed that vincristine downregulated SUFU, thus increasing breast cancer cell sensitivity to RSL3 in vitro and in vivo. Together, our findings uncover SUFU as a novel regulator in ferroptosis sensitivity. SUFU regulates the sensitivity of breast cancer cells to ferroptosis SUFU associates with LATS1 to downregulate the YAP-ACSL4 axis Vincristine targets the SUFU-YAP-ACSL4 axis
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7
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Tran L, Meng S, Wang P, Pan I, Yi T, Wang R, Jiao Z, Bai H. Abstract No. 240 Automated outcome prediction in mechanical thrombectomy for acute large vessel ischemic stroke using 3D convolutional neural networks applied to CT angiography. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Freilinger A, Kaserer K, Zettinig G, Pruidze P, Reissig LF, Rossmann T, Weninger WJ, Meng S. Ultrasound for the detection of the pyramidal lobe of the thyroid gland. J Endocrinol Invest 2022; 45:1201-1208. [PMID: 35157251 PMCID: PMC9098552 DOI: 10.1007/s40618-022-01748-z] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/16/2022] [Indexed: 12/03/2022]
Abstract
PURPOSE The pyramidal lobe (PL) is an ancillary lobe of the thyroid gland that can be affected by the same pathologies as the rest of the gland. We aimed to assess the diagnostic performance of high-resolution sonography in the detection of the PL with verification by dissection and histological examination. METHODS In a prospective, cross-sectional mono-center study, 50 fresh, non-embalmed cadavers were included. Blinded ultrasound examination was performed to detect the PL by two investigators of different experience levels. If the PL was detected with ultrasound, dissection was performed to expose the PL and obtain a tissue sample. When no PL was detected with ultrasound, a tissue block of the anterior cervical region was excised. An endocrine pathologist microscopically examined all tissue samples and tissue blocks for the presence of thyroid parenchyma. RESULTS The prevalence of the PL was 80% [40/50; 95% CI (68.9%; 91.1%)]. Diagnostic performance for both examiners was: sensitivity (85.0%; 42.5%), specificity (50.0%; 60.0%), positive predictive value (87.2%; 81.0%), negative predictive value (45.5%; 21.0%) and accuracy (78.0%; 46.0%). Regression analysis demonstrated that neither thyroid parenchyma echogenicity, thyroid gland volume, age nor body size proved to be covariates in the accurate detection of a PL (p > .05). CONCLUSION We report that high-resolution ultrasound is an adequate examination modality to detect the PL. Our findings indicate a higher prevalence than previously reported. Therefore, the PL may be regarded as a regular part of the thyroid gland. We also advocate a dedicated assessment of the PL in routine thyroid ultrasound.
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Affiliation(s)
- A Freilinger
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria
| | - K Kaserer
- Laboratory Kaserer, Koperek und Beer OG, Reisnerstraße 5, 1030, Vienna, Austria
| | - G Zettinig
- Thyroid Center "Schilddrüsenpraxis Josefstadt", Laudongasse 12, 1080, Vienna, Austria
| | - P Pruidze
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria
| | - L F Reissig
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria
| | - T Rossmann
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria
- Department of Neurosurgery, Neuromed Campus, Kepler University Hospital, Wagner-Jauregg-Weg 15, 4020, Linz, Austria
| | - W J Weninger
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria
| | - S Meng
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria.
- Department of Radiology, Hanusch Hospital Vienna, Heinrich-Collin-Straße 30, 1140, Vienna, Austria.
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Soler JM, Neretnieks I, Moreno L, Liu L, Meng S, Svensson U, Iraola A, Ebrahimi H, Trinchero P, Molinero J, Vidstrand P, Deissmann G, Říha J, Hokr M, Vetešník A, Vopálka D, Gvoždík L, Polák M, Trpkošová D, Havlová V, Park DK, Ji SH, Tachi Y, Ito T, Gylling B, Lanyon GW. Predictive Modeling of a Simple Field Matrix Diffusion Experiment Addressing Radionuclide Transport in Fractured Rock. Is It So Straightforward? NUCL TECHNOL 2021. [DOI: 10.1080/00295450.2021.1988822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - J. Říha
- Technical University of Liberec, Czech Republic
| | - M. Hokr
- Technical University of Liberec, Czech Republic
| | - A. Vetešník
- Czech Technical University in Prague, Czech Republic
| | - D. Vopálka
- Czech Technical University in Prague, Czech Republic
| | | | | | | | | | | | - S.-H. Ji
- KAERI, Daejeon, Republic of Korea
| | | | | | - B. Gylling
- Gylling GeoSolutions, Evanston, Illinois
| | - G. W. Lanyon
- Fracture Systems Ltd, St Ives, Cornwall, United Kindgom
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Kan X, Yin Y, Song C, Tan L, Qiu X, Liao Y, Liu W, Meng S, Sun Y, Ding C. Newcastle-disease-virus-induced ferroptosis through nutrient deprivation and ferritinophagy in tumor cells. iScience 2021; 24:102837. [PMID: 34368653 PMCID: PMC8326413 DOI: 10.1016/j.isci.2021.102837] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [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: 12/30/2020] [Revised: 05/31/2021] [Accepted: 07/07/2021] [Indexed: 12/30/2022] Open
Abstract
A number of new cell death processes have been discovered in recent years, including ferroptosis, which is characterized by the accumulation of lipid peroxidation products derived from iron metabolism. The evidence suggests that ferroptosis has a tumor-suppressor function. However, the mechanism by which ferroptosis mediates the response of tumor cells to oncolytic viruses remains poorly understood. The Newcastle disease virus (NDV) can selectively replicate in tumor cells. We show that NDV-induced ferroptosis acts through p53-SLC7A11-GPX4 pathway. Meanwhile, the levels of intracellular reactive oxygen species and lipid peroxides increased in tumor cells. Ferritinophagy was induced by NDV promotion of ferroptosis through the release of ferrous iron and an enhanced Fenton reaction. Collectively, these observations demonstrated that the NDV can kill tumor cells through ferroptosis. Our study provides novel insights into the mechanisms of NDV-induced ferroptosis and highlights the critical role of viruses in treating therapy-resistant cancers. Oncolytic viruses NDV caused tumor cells death through ferroptosis NDV-induced ferroptosis acts through nutrient deprivation by suppression of System Xc− P53 activation is required for NDV-induced ferroptosis initiation Ferritinophagy induced by NDV promotes ferroptosis through release of ferrous iron
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Affiliation(s)
- Xianjin Kan
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute. Chinese Academy of Agricultural Science, Shanghai 200241, P.R. China
| | - Yuncong Yin
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
| | - Cuiping Song
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute. Chinese Academy of Agricultural Science, Shanghai 200241, P.R. China
| | - Lei Tan
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute. Chinese Academy of Agricultural Science, Shanghai 200241, P.R. China
| | - Xusheng Qiu
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute. Chinese Academy of Agricultural Science, Shanghai 200241, P.R. China
| | - Ying Liao
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute. Chinese Academy of Agricultural Science, Shanghai 200241, P.R. China
| | - Weiwei Liu
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute. Chinese Academy of Agricultural Science, Shanghai 200241, P.R. China
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, PR China
| | - Yingjie Sun
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute. Chinese Academy of Agricultural Science, Shanghai 200241, P.R. China
| | - Chan Ding
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute. Chinese Academy of Agricultural Science, Shanghai 200241, P.R. China.,College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
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Lloyd-Hughes J, Oppeneer PM, Pereira Dos Santos T, Schleife A, Meng S, Sentef MA, Ruggenthaler M, Rubio A, Radu I, Murnane M, Shi X, Kapteyn H, Stadtmüller B, Dani KM, da Jornada FH, Prinz E, Aeschlimann M, Milot RL, Burdanova M, Boland J, Cocker T, Hegmann F. The 2021 ultrafast spectroscopic probes of condensed matter roadmap. J Phys Condens Matter 2021; 33:353001. [PMID: 33951618 DOI: 10.1088/1361-648x/abfe21] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 05/05/2021] [Indexed: 06/12/2023]
Abstract
In the 60 years since the invention of the laser, the scientific community has developed numerous fields of research based on these bright, coherent light sources, including the areas of imaging, spectroscopy, materials processing and communications. Ultrafast spectroscopy and imaging techniques are at the forefront of research into the light-matter interaction at the shortest times accessible to experiments, ranging from a few attoseconds to nanoseconds. Light pulses provide a crucial probe of the dynamical motion of charges, spins, and atoms on picosecond, femtosecond, and down to attosecond timescales, none of which are accessible even with the fastest electronic devices. Furthermore, strong light pulses can drive materials into unusual phases, with exotic properties. In this roadmap we describe the current state-of-the-art in experimental and theoretical studies of condensed matter using ultrafast probes. In each contribution, the authors also use their extensive knowledge to highlight challenges and predict future trends.
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Affiliation(s)
- J Lloyd-Hughes
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
| | - P M Oppeneer
- Department of Physics and Astronomy, Uppsala University, PO Box 516, S-75120 Uppsala, Sweden
| | - T Pereira Dos Santos
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
| | - A Schleife
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
- Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
- National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
| | - S Meng
- Institute of Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - M A Sentef
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science (CFEL), 22761 Hamburg, Germany
| | - M Ruggenthaler
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science (CFEL), 22761 Hamburg, Germany
| | - A Rubio
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science (CFEL), 22761 Hamburg, Germany
- Nano-Bio Spectroscopy Group and ETSF, Universidad del País Vasco UPV/EHU 20018 San Sebastián, Spain
- Center for Computational Quantum Physics (CCQ), The Flatiron Institute, 162 Fifth Avenue, New York, NY, 10010, United States of America
| | - I Radu
- Department of Physics, Freie Universität Berlin, Germany
- Max Born Institute, Berlin, Germany
| | - M Murnane
- JILA, University of Colorado and NIST, Boulder, CO, United States of America
| | - X Shi
- JILA, University of Colorado and NIST, Boulder, CO, United States of America
| | - H Kapteyn
- JILA, University of Colorado and NIST, Boulder, CO, United States of America
| | - B Stadtmüller
- Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - K M Dani
- Femtosecond Spectroscopy Unit, Okinawa Institute of Science and Technology Graduate University, Onna-son, Japan
| | - F H da Jornada
- Department of Materials Science and Engineering, Stanford University, Stanford, 94305, CA, United States of America
| | - E Prinz
- Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - M Aeschlimann
- Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - R L Milot
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
| | - M Burdanova
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
| | - J Boland
- Photon Science Institute, Department of Electrical and Electronic Engineering, University of Manchester, United Kingdom
| | - T Cocker
- Michigan State University, United States of America
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12
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Meng S, Lee D, Cantos A. Abstract No. 167 Interventional radiology procedure volume changes during the COVID-19 pandemic. J Vasc Interv Radiol 2021. [PMCID: PMC8079610 DOI: 10.1016/j.jvir.2021.03.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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13
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Meng S, Chengazi H, Butani D, Lee D, Cantos A. Abstract No. 129 Pilot initiative of tube labeling in interventional radiology as a means to reduce medical errors and improve overall understanding among referring services. J Vasc Interv Radiol 2021. [DOI: 10.1016/j.jvir.2021.03.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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14
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Gan G, Shi Z, Shangguan C, Zhang J, Yuan Y, Chen L, Liu W, Li B, Meng S, Xiong W, Mi J. The kynurenine derivative 3-HAA sensitizes hepatocellular carcinoma to sorafenib by upregulating phosphatases. Am J Cancer Res 2021; 11:6006-6018. [PMID: 33897895 PMCID: PMC8058709 DOI: 10.7150/thno.59841] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 03/23/2021] [Indexed: 01/08/2023] Open
Abstract
Objectives: Sorafenib is the only FDA-approved first-line target drug for HCC patients. However, sorafenib merely confers 3-5 months of survival benefit with less than 30% of HCC patients sensitive to sorafenib therapy. Thus, it's necessary to develop a sensitizer for hepatocellular carcinoma (HCC) to sorafenib. Methods: The principal component analysis, gene ontology, and KEGG analysis are utilized following RNA-sequencing. The mass spectrometry analysis following immunoprecipitation is performed to discover the phosphatase targets. Most importantly, both the cell line-derived xenograft (CDX) and the patient-derived xenograft (PDX) mouse model are used to determine the effect of 3-HAA on sorafenib-resistant HCC in vivo. Results: In nude mice carrying HCC xenograft, tumor growth is inhibited by sorafenib or 3-HAA alone. When used in combination, the treatment particularly prevents the xenograft from growing. Combined treatment also suppresses the growth of sorafenib-resistant (≥30mg/kg) PDXs. In a set of mechanistic experiments, we find enhanced AKT activation and decreased apoptotic cells in de novo and acquired sorafenib-resistant HCC cells and tissues. 3-HAA decreases AKT phosphorylation and increases the apoptosis of HCC in both cultured cells and mouse xenografts by upregulation of phosphatases PPP1R15A/DUSP6. PPP1R15A/PPP1α directly reduces Akt phosphorylation while DUSP6 decreases Akt activity through inhibiting PDK1. The AKT activator abolishes 3-HAA inhibition of HCC growth in vitro and in mice. Conclusion: This study demonstrates that 3-HAA sensitizes HCC cells to sorafenib by upregulation of phosphatases, suggesting it as a promising molecule for HCC therapy.
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15
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Qiu M, Zhou Z, Meng S, Li H, Li Q, Wang J. 29MO Early-stage lung cancer detection by a noninvasive breath test. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01871-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Li J, Zhang C, Si H, Gu S, Liu X, Li D, Meng S, Yang X, Li S. Brain-specific monoallelic expression of bovine UBE3A is associated with genomic position. Anim Genet 2020; 52:47-54. [PMID: 33200847 DOI: 10.1111/age.13023] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2020] [Indexed: 11/30/2022]
Abstract
Genomic imprinting is a rare epigenetic process in mammalian cells that leads to monoallelic expression of a gene with a parent-specific pattern. The UBE3A (ubiquitin protein ligase E3A) gene is imprinted with maternal allelic expression in the brain but biallelically expressed in all other tissues in humans. The silencing of the paternal UBE3A allele is thought to be caused by the paternally expressed antisense RNA transcript of UBE3A-ATS. The aberrant imprinted expression of the UBE3A is associated with several neurodevelopmental syndromes and psychological disorders. Cattle are a valuable model species in determining the genetic etiology of sporadic human disorder, and maternal expression of UEB3A has been revealed by next-generation sequencing study in the bovine conceptus. In this study, we investigated the allelic expression of UBE3A and UBE3A-ATS in adult bovine somatic tissues. To confirm the splicing pattern of bovine UBE3A, five 5' alternative transcripts (MT210534-MT210538) were first obtained from bovine brain tissue by RT-PCR. Based on 10 SNP genotypes, we found that the brain-specific monoallelic expression of bovine UBE3A did not occur along the entire locus, and there was a shift from biallelic expression to monoallelic expression in exon 14 of the UBE3A gene. However, the brain-specific monoallelic expression of bovine UBE3A-ATS occurred in the entire gene. These observations demonstrated that the monoallelic expression did not occur along the bovine UBE3A entire locus and was associated with the genomic position.
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Affiliation(s)
- J Li
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - C Zhang
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - H Si
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - S Gu
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - X Liu
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - D Li
- College of Bioscience and Bioengineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - S Meng
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - X Yang
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - S Li
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
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17
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Hu L, Shen D, Liang D, Shi J, Song C, Jiang K, Du S, Cheng W, Ma J, Li S, Bi X, Barr MP, Fang Z, Xu Q, Li W, Piao H, Meng S. Thyroid receptor-interacting protein 13 and EGFR form a feedforward loop promoting glioblastoma growth. Cancer Lett 2020; 493:156-166. [PMID: 32860853 DOI: 10.1016/j.canlet.2020.08.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/04/2020] [Accepted: 08/20/2020] [Indexed: 11/19/2022]
Abstract
Epidermal growth factor receptor (EGFR) amplification and EGFRvIII mutation drive glioblastoma (GBM) pathogenesis, but their regulation remains elusive. Here we characterized the EGFR/EGFRvIII "interactome" in GBM and identified thyroid receptor-interacting protein 13 (TRIP13), an AAA + ATPase, as an EGFR/EGFRvIII-associated protein independent of its ATPase activity. Functionally, TRIP13 augmented EGFR pathway activation and contributed to EGFR/EGFRvIII-driven GBM growth in GBM spheroids and orthotopic GBM xenograft models. Mechanistically, TRIP13 enhanced EGFR protein abundance in part by preventing Cbl-mediated ubiquitination and proteasomal degradation. Reciprocally, TRIP13 was phosphorylated at tyrosine(Y) 56 by EGFRvIII and EGF-activated EGFR. Abrogating TRIP13 Y56 phosphorylation dramatically attenuated TRIP13 expression-enhanced EGFR signaling and GBM cell growth. Clinically, TRIP13 expression was upregulated in GBM specimens and associated with poor patient outcome. In GBM, TRIP13 localized to cell membrane and cytoplasma and exhibited oncogenic effects in vitro and in vivo, depending on EGFR signaling but not the TRIP13 ATPase activity. Collectively, our findings uncover that TRIP13 and EGFR form a feedforward loop to potentiate EGFR signaling in GBM growth and identify a previously unrecognized ATPase activity-independent mode of action of TRIP13 in GBM biology.
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Affiliation(s)
- Lulu Hu
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, PR China
| | - Dachuan Shen
- Department of Oncology, Affiliated Zhongshan Hospital of Dalian University, Dalian, PR China
| | - Dapeng Liang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, PR China
| | - Ji Shi
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, PR China
| | - Chunyan Song
- Department of Neuro-oncology, Neurosurgery Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, PR China
| | - Ke Jiang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, PR China; Department of Medical Oncology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, 200072, PR China
| | - Sha Du
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, PR China
| | - Wei Cheng
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, PR China
| | - Jianmei Ma
- College of Basic Medical Sciences, Dalian Medical University, Dalian, 116044, PR China
| | - Shao Li
- College of Basic Medical Sciences, Dalian Medical University, Dalian, 116044, PR China
| | - Xiaolin Bi
- College of Basic Medical Sciences, Dalian Medical University, Dalian, 116044, PR China
| | - Martin P Barr
- Thoracic Oncology Research Group, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, St. James's Hospital & Trinity College, Dublin, Ireland
| | - Zhiyou Fang
- Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
| | - Qing Xu
- Department of Medical Oncology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, 200072, PR China.
| | - Wenbin Li
- Department of Neuro-oncology, Neurosurgery Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, PR China.
| | - Haozhe Piao
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, PR China.
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, PR China.
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18
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Lakhotia H, Kim HY, Zhan M, Hu S, Meng S, Goulielmakis E. Laser picoscopy of valence electrons in solids. Nature 2020; 583:55-59. [PMID: 32612227 DOI: 10.1038/s41586-020-2429-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 05/01/2020] [Indexed: 11/09/2022]
Abstract
Valence electrons contribute a small fraction of the total electron density of materials, but they determine their essential chemical, electronic and optical properties. Strong laser fields can probe electrons in valence orbitals1-3 and their dynamics4-6 in the gas phase. Previous laser studies of solids have associated high-harmonic emission7-12 with the spatial arrangement of atoms in the crystal lattice13,14 and have used terahertz fields to probe interatomic potential forces15. Yet the direct, picometre-scale imaging of valence electrons in solids has remained challenging. Here we show that intense optical fields interacting with crystalline solids could enable the imaging of valence electrons at the picometre scale. An intense laser field with a strength that is comparable to the fields keeping the valence electrons bound in crystals can induce quasi-free electron motion. The harmonics of the laser field emerging from the nonlinear scattering of the valence electrons by the crystal potential contain the critical information that enables picometre-scale, real-space mapping of the valence electron structure. We used high harmonics to reconstruct images of the valence potential and electron density in crystalline magnesium fluoride and calcium fluoride with a spatial resolution of about 26 picometres. Picometre-scale imaging of valence electrons could enable direct probing of the chemical, electronic, optical and topological properties of materials.
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Affiliation(s)
- H Lakhotia
- Institut für Physik, Universität Rostock, Rostock, Germany.,Max-Planck-Institut für Quantenoptik, Garching, Germany
| | - H Y Kim
- Institut für Physik, Universität Rostock, Rostock, Germany.,Max-Planck-Institut für Quantenoptik, Garching, Germany
| | - M Zhan
- Institut für Physik, Universität Rostock, Rostock, Germany.,Max-Planck-Institut für Quantenoptik, Garching, Germany
| | - S Hu
- Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - S Meng
- Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - E Goulielmakis
- Institut für Physik, Universität Rostock, Rostock, Germany. .,Max-Planck-Institut für Quantenoptik, Garching, Germany.
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19
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Jiang K, Liu P, Xu H, Liang D, Fang K, Du S, Cheng W, Ye L, Liu T, Zhang X, Gong P, Shao S, Wang Y, Meng S. SASH1 suppresses triple-negative breast cancer cell invasion through YAP-ARHGAP42-actin axis. Oncogene 2020; 39:5015-5030. [PMID: 32523092 DOI: 10.1038/s41388-020-1356-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 05/31/2020] [Accepted: 06/04/2020] [Indexed: 11/09/2022]
Abstract
Triple-negative breast cancer (TNBC) is extremely aggressive and lacks effective therapy. SAM and SH3 domain containing1 (SASH1) has been implicated in TNBC as a candidate tumor suppressor; however, the mechanisms of action of SASH1 in TNBC remain underexplored. Here, we show that SASH1 was significantly downregulated in TNBC patients samples compared with other subtypes of breast cancer. Ectopic SASH1 expression inhibited, while depletion of SASH1 enhanced, the invasive phenotype of TNBC cells, accompanied by deregulated expression of MMP2 and MMP9. The functional effects of SASH1 depletion were confirmed in the chicken chorioallantoic membrane and mouse xenograft models. Mechanistically, SASH1 knockdown downregulated the phosphorylation levels of the Hippo kinase LATS1 and its effector YAP (Yes associated protein), thereby upregulating YAP accumulation together with its downstream target CYR61. Consistently, forced SASH1 expression exhibited opposite effects. Pharmacological inhibition of YAP or knockdown of YAP reversed the enhanced cell invasion of TNBC cells following SASH1 depletion. Furthermore, SASH1-induced YAP signaling was LATS1-dependent, which in reverse enhanced phosphorylation of SASH1. The SASH1 S407A mutant (phosphorylation deficient) failed to rescue the altered YAP signaling by SASH1 knockdown. Notably, SASH1 depletion upregulated ARHGAP42 levels via YAP-TEAD and the YAP-ARHGAP42-actin axis contributed to SASH1-regulated TNBC cell invasion. Therefore, our findings uncover a new mechanism for the tumor-suppressive activity of SASH1 in TNBC, which may serve as a novel target for therapeutic intervention.
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Affiliation(s)
- Ke Jiang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 116044, Dalian, China
| | - Peng Liu
- Department of General Surgery, Shenzhen University General Hospital, 518055, Shenzhen, China
- Carson International Cancer Research Centre, Shenzhen University School of Medicine, 518055, Shenzhen, China
| | - Huizhe Xu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 116044, Dalian, China
| | - Dapeng Liang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 116044, Dalian, China
| | - Kun Fang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 116044, Dalian, China
| | - Sha Du
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 116044, Dalian, China
| | - Wei Cheng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 116044, Dalian, China
| | - Leiguang Ye
- Department of Oncology, Harbin Medical University Cancer Hospital, 150000, Harbin, China
| | - Tong Liu
- Department of Breast Surgery, Harbin Medical University Cancer Hospital, 150000, Harbin, China
| | - Xiaohong Zhang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 116044, Dalian, China
| | - Peng Gong
- Department of General Surgery, Shenzhen University General Hospital, 518055, Shenzhen, China
- Carson International Cancer Research Centre, Shenzhen University School of Medicine, 518055, Shenzhen, China
| | - Shujuan Shao
- Key Laboratory of Proteomics, Dalian Medical University, 116044, Dalian, China.
| | - Yifei Wang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Dalian Medical University, 116027, Dalian, China.
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 116044, Dalian, China.
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20
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Jiang K, Yao G, Hu L, Yan Y, Liu J, Shi J, Chang Y, Zhang Y, Liang D, Shen D, Zhang G, Meng S, Piao H. MOB2 suppresses GBM cell migration and invasion via regulation of FAK/Akt and cAMP/PKA signaling. Cell Death Dis 2020; 11:230. [PMID: 32286266 PMCID: PMC7156523 DOI: 10.1038/s41419-020-2381-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 01/30/2020] [Accepted: 01/31/2020] [Indexed: 12/20/2022]
Abstract
Mps one binder 2 (MOB2) regulates the NDR kinase family, however, whether and how it is implicated in cancer remain unknown. Here we show that MOB2 functions as a tumor suppressor in glioblastoma (GBM). Analysis of MOB2 expression in glioma patient specimens and bioinformatic analyses of public datasets revealed that MOB2 was downregulated at both mRNA and protein levels in GBM. Ectopic MOB2 expression suppressed, while depletion of MOB2 enhanced, the malignant phenotypes of GBM cells, such as clonogenic growth, anoikis resistance, and formation of focal adhesions, migration, and invasion. Moreover, depletion of MOB2 increased, while overexpression of MOB2 decreased, GBM cell metastasis in a chick chorioallantoic membrane model. Overexpression of MOB2-mediated antitumor effects were further confirmed in mouse xenograft models. Mechanistically, MOB2 negatively regulated the FAK/Akt pathway involving integrin. Notably, MOB2 interacted with and promoted PKA signaling in a cAMP-dependent manner. Furthermore, the cAMP activator Forskolin increased, while the PKA inhibitor H89 decreased, MOB2 expression in GBM cells. Functionally, MOB2 contributed to the cAMP/PKA signaling-regulated inactivation of FAK/Akt pathway and inhibition of GBM cell migration and invasion. Collectively, these findings suggest a role of MOB2 as a tumor suppressor in GBM via regulation of FAK/Akt signaling. Additionally, we uncover MOB2 as a novel regulator in cAMP/PKA signaling. Given that small compounds targeting FAK and cAMP pathway have been tested in clinical trials, we suggest that interference with MOB2 expression and function may support a theoretical and therapeutic basis for applications of these compounds.
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Affiliation(s)
- Ke Jiang
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China.,Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, 116044, Dalian, China
| | - Gang Yao
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, 116044, Dalian, China
| | - Lulu Hu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, 116044, Dalian, China
| | - Yumei Yan
- The First Department of Ultrasound, the First Affiliated Hospital to Dalian Medical University, No. 222 Zhongshan Road, 116021, Dalian, China
| | - Jia Liu
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Ji Shi
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Youwei Chang
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Ye Zhang
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Dapeng Liang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, 116044, Dalian, China
| | - Dachuan Shen
- Department of Oncology, Affiliated Zhongshan Hospital of Dalian University, 116004, Dalian, China
| | - Guirong Zhang
- Central laboratory, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China.
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, 116044, Dalian, China.
| | - Haozhe Piao
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China.
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21
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Wang X, Shao X, Gu L, Jiang K, Wang S, Chen J, Fang J, Guo X, Yuan M, Shi J, Ding C, Meng S, Xu Q. Targeting STAT3 enhances NDV-induced immunogenic cell death in prostate cancer cells. J Cell Mol Med 2020; 24:4286-4297. [PMID: 32100392 PMCID: PMC7171322 DOI: 10.1111/jcmm.15089] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 12/06/2019] [Accepted: 12/18/2019] [Indexed: 12/16/2022] Open
Abstract
Oncolytic Newcastle disease virus (NDV) induces immunogenic cell death (ICD), liberating danger-associated molecular patterns (DAMPs) that provokes defiance in neoplastic malignancy. The present study aims to investigate whether and how oncolytic NDV triggers ICD in prostate cancer cells. We show that NDV/FMW, an oncolytic NDV strain FMW, elicited the expression and release of several ICD markers, that is calreticulin (CRT), heat shock proteins (HSP70/90) and high-mobility group box 1 (HMGB1), in prostate cancer cells. Furthermore, pharmacological repression of apoptosis, necroptosis, autophagy or endoplasmic reticulum (ER) stress exerted diverse effects on the HMGB1 and HSP70/90 evacuation in NDV/FMW-infected prostate cancer cells. Moreover, ICD markers induced in prostate cancer cells upon NDV/FMW infection, were enhanced by either treatment with a STAT3 (signal transducer and activator of transcription 3) inhibitor or shRNA-mediated knockdown of STAT3. In nude mice bearing prostate cancer cell-derived tumours, the tumours injected with the supernatants of NDV/FMW-infected cells grew smaller than mock-treated tumours. These results indicate that oncolytic NDV provokes the expression of ICD makers in prostate cancer cells. Our data also suggest that a combination of inhibition of STAT3 with oncolytic NDV could boost NDV-based anti-tumour effects against prostate cancer.
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Affiliation(s)
- Xueke Wang
- Department of Medical OncologyShanghai Tenths People's HospitalSchool of MedicineTongji UniversityShanghaiChina
- Department of Radio therapyHwa Mei HospitalUniversity of Chinese Academy of ScienceNingboZhejiangChina
- Department of Oncology, Dermatology HospitalTongji UniversityShanghaiChina
- Tongji University Cancer CenterShanghaiChina
| | - Xiaoyan Shao
- Department of Medical OncologyShanghai Tenths People's HospitalSchool of MedicineTongji UniversityShanghaiChina
- Department of Oncology, Dermatology HospitalTongji UniversityShanghaiChina
- Tongji University Cancer CenterShanghaiChina
| | - Linaer Gu
- Department of Medical OncologyShanghai Tenths People's HospitalSchool of MedicineTongji UniversityShanghaiChina
- Department of Oncology, Dermatology HospitalTongji UniversityShanghaiChina
- Tongji University Cancer CenterShanghaiChina
| | - Ke Jiang
- Institute of Cancer Stem CellDalian Medical University Cancer CenterDalianChina
| | - Sitong Wang
- Department of Medical OncologyShanghai Tenths People's HospitalSchool of MedicineTongji UniversityShanghaiChina
- Department of Oncology, Dermatology HospitalTongji UniversityShanghaiChina
- Tongji University Cancer CenterShanghaiChina
| | - Jianhua Chen
- Department of Medical OncologyShanghai Tenths People's HospitalSchool of MedicineTongji UniversityShanghaiChina
- Department of Oncology, Dermatology HospitalTongji UniversityShanghaiChina
- Tongji University Cancer CenterShanghaiChina
| | - Juemin Fang
- Department of Medical OncologyShanghai Tenths People's HospitalSchool of MedicineTongji UniversityShanghaiChina
- Department of Oncology, Dermatology HospitalTongji UniversityShanghaiChina
- Tongji University Cancer CenterShanghaiChina
| | - Xianling Guo
- Department of Medical OncologyShanghai Tenths People's HospitalSchool of MedicineTongji UniversityShanghaiChina
- Department of Oncology, Dermatology HospitalTongji UniversityShanghaiChina
- Tongji University Cancer CenterShanghaiChina
| | - Min Yuan
- Department of Medical OncologyShanghai Tenths People's HospitalSchool of MedicineTongji UniversityShanghaiChina
- Department of Oncology, Dermatology HospitalTongji UniversityShanghaiChina
- Tongji University Cancer CenterShanghaiChina
| | - Ji Shi
- Department of NeurosurgeryCancer Hospital of China Medical UniversityLiaoning Cancer Hospital & InstituteShenyangChina
| | - Chan Ding
- Department of Avian Infectious DiseasesShanghai Veterinary Research InstituteChinese Academy of Agricultural ScienceShanghaiChina
| | - Songshu Meng
- Institute of Cancer Stem CellDalian Medical University Cancer CenterDalianChina
| | - Qing Xu
- Department of Medical OncologyShanghai Tenths People's HospitalSchool of MedicineTongji UniversityShanghaiChina
- Department of Oncology, Dermatology HospitalTongji UniversityShanghaiChina
- Tongji University Cancer CenterShanghaiChina
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Xu H, Liu P, Yan Y, Fang K, Liang D, Hou X, Zhang X, Wu S, Ma J, Wang R, Li T, Piao H, Meng S. FKBP9 promotes the malignant behavior of glioblastoma cells and confers resistance to endoplasmic reticulum stress inducers. J Exp Clin Cancer Res 2020; 39:44. [PMID: 32111229 PMCID: PMC7048151 DOI: 10.1186/s13046-020-1541-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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] [Received: 11/11/2019] [Accepted: 02/05/2020] [Indexed: 02/08/2023]
Abstract
Background FK506-binding protein 9 (FKBP9) is amplified in high-grade gliomas (HGGs). However, the roles and mechanism(s) of FKBP9 in glioma are unknown. Methods The expression of FKBP9 in clinical glioma tissues was detected by immunohistochemistry (IHC). The correlation between FKBP9 expression levels and the clinical prognosis of glioma patients was examined by bioinformatic analysis. Glioblastoma (GBM) cell lines stably depleted of FKBP9 were established using lentiviruses expressing shRNAs against FKBP9. The effects of FKBP9 on GBM cells were determined by cell-based analyses, including anchorage-independent growth, spheroid formation, transwell invasion assay, confocal microscopy, immunoblot (IB) and coimmunoprecipitation assays. In vivo tumor growth was determined in both chick chorioallantoic membrane (CAM) and mouse xenograft models. Results High FKBP9 expression correlated with poor prognosis in glioma patients. Knockdown of FKBP9 markedly suppressed the malignant phenotype of GBM cells in vitro and inhibited tumor growth in vivo. Mechanistically, FKBP9 expression induced the activation of p38MAPK signaling via ASK1. Furthermore, ASK1-p38 signaling contributed to the FKBP9-mediated effects on GBM cell clonogenic growth. In addition, depletion of FKBP9 activated the IRE1α-XBP1 pathway, which played a role in the FKBP9-mediated oncogenic effects. Importantly, FKBP9 expression conferred GBM cell resistance to endoplasmic reticulum (ER) stress inducers that caused FKBP9 ubiquitination and degradation. Conclusions Our findings suggest an oncogenic role for FKBP9 in GBM and reveal FKBP9 as a novel mediator in the IRE1α-XBP1 pathway.
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Affiliation(s)
- Huizhe Xu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044, Liaoning Province, China
| | - Peng Liu
- Department of General Surgery, Shenzhen University General Hospital, No. 1098, Xueyuan avenue, Shenzhen, 518055, China
| | - Yumei Yan
- The First Department of Ultrasound, The First Affiliated Hospital, Dalian Medical University, No. 222 Zhongshan Road, Dalian, 116021, Liaoning Province, China
| | - Kun Fang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044, Liaoning Province, China
| | - Dapeng Liang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044, Liaoning Province, China
| | - Xiukun Hou
- The First Department of Ultrasound, The First Affiliated Hospital, Dalian Medical University, No. 222 Zhongshan Road, Dalian, 116021, Liaoning Province, China
| | - Xiaohong Zhang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044, Liaoning Province, China
| | - Songyan Wu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044, Liaoning Province, China
| | - Jianmei Ma
- Department of Anatomy, Dalian Medical University, 9 Lvshun Road South, Dalian, 116044, Liaoning Province, China
| | - Ruoyu Wang
- Department of Oncology, Affiliated Zhongshan Hospital of Dalian University, No.6 Jiefang Street, Dalian, 116001, Liaoning Province, China.
| | - Tao Li
- Department of Neurosurgery, The First Affiliated Hospital of Dalian Medical University, No. 222 Zhongshan Road, Dalian, 116011, Liaoning Province, China.
| | - Haozhe Piao
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China.
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044, Liaoning Province, China.
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23
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Wang J, Zhao J, Bai H, Wang X, Wang Y, Duan J, Chen H, Meng S, Tian Y, Huang DL, Wu YL. A phase IIIb open-label study of afatinib in EGFR TKI-naïve patients (pts) with EGFR mutation-positive (EGFRm+) NSCLC: Exploratory biomarker analysis. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz436.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
CLINICAL ISSUE Due to the high prevalence of clinically suspected cholecystitis or cholecystolithiasis the gallbladder is one of the organs examined the most by imaging. STANDARD RADIOLOGICAL METHODS In most clinical settings ultrasound is the primary imaging method because of its wide availability, speed and superior spatial resolution. In cases of ambiguous findings or potential complications computed tomography (CT) and magnetic resonance imaging (MRI) are used. METHODICAL INNOVATIONS When specific problems arise these imaging modalities may be enhanced by special techniques, e. g. contrast-enhanced ultrasound or dual-energy CT, and specific MRI sequences. PERFORMANCE Special variants of cholecystitis, such as xanthogranulomatous cholecystitis and adenomyomatosis, may pose a particularly difficult diagnostic problem as they may resemble other diseases. Sequelae of cholecystolithiasis, such as the Mirizzi syndrome and acute bowel obstruction, may complicate the imaging algorithm as the location and the symptoms shift. Cases of neoplastic diseases of gallbladder cancer and other malignancies require a broad spectrum of imaging modalities. ACHIEVEMENTS Although the gallbladder can easily be examined with ultrasound, some cases require a more thorough ultrasound examination. In some cases only a combination of multiple imaging modalities yield the diagnosis. Further developments regarding technical issues and the diagnostic algorithm can be expected. PRACTICAL RECOMMENDATIONS Ultrasound is the best first imaging modality. In cases of ambiguous findings or clinical complications CT or MRI are recommended.
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Affiliation(s)
- H Kopf
- Abteilung für Diagnostische und Interventionelle Radiologie, Göttlicher Heiland Krankenhaus, Vinzenzgruppe, Wien, Österreich
| | - W Schima
- Abteilung für Diagnostische und Interventionelle Radiologie, Göttlicher Heiland Krankenhaus, Vinzenzgruppe, Wien, Österreich
| | - S Meng
- Radiologie, KFJ Spital, Wien, Österreich.
- Zentrum für Anatomie und Zellbiologie, Medizinische Universität Wien, Währinger Str. 13, 1090, Wien, Österreich.
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Sun C, Meng S, Ye RX, Wu YJ, Wang QZ, Cao M, Zhou H. [A study on the association between the infant anemia and the utilization of maternal and child health services in ethnic minorities gathering in poverty-stricken rural areas of two provinces in Western China]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:330-333. [PMID: 30841678 DOI: 10.3760/cma.j.issn.0253-9624.2019.03.019] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In this study, 1 065 infants and young children aged 24 months below in ethnic minorities gathering in poor rural areas in poor rural areas of Liangshan Yi Autonomous Prefecture of Sichuan Province and Gannan Tibetan Autonomous Prefecture of Gansu Province were investigated for their anemia status from October to November 2014, and the association between anemia and the utilization of maternal and child health services was analyzed. The prevalence of anemia in this area was 52.68%(561/1 065). After the adjustment of socio-demographic characteristics of mothers and infants, compared with infants aged 2-5 months, Han ethnic group, and infants whose mother was not anemic, the OR(95%CI) values of infant anemia for infants aged 6-12 months, 13-8 months, 19-24 months, ethnic minorities group, and infants whose mother was anemic were 11.65 (7.09-19.14), 9.91 (5.99-16.38), 5.87 (3.39-10.16), 1.55 (1.10-2.18) and 1.52 (1.14-2.04), respectively; Compared with infants whose child examination times not up to standard, and who were not only non-hospital delivered but also received inadequate number of inoculation, the OR (95%CI) values of infant anemia for infants whose child examination times up to standard, and who were not only hospital delivered but also received adequate number of inoculation were 0.60 (0.38-0.94) and 0.71 (0.52-0.98), respectively. The infants anemia is associated with the utilization of maternal and child health services.
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Affiliation(s)
- C Sun
- West China School of Public Health, Sichuan University, Chengdu 610041, China
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Ye T, Wei L, Shi J, Jiang K, Xu H, Hu L, Kong L, Zhang Y, Meng S, Piao H. Sirtuin1 activator SRT2183 suppresses glioma cell growth involving activation of endoplasmic reticulum stress pathway. BMC Cancer 2019; 19:706. [PMID: 31319814 PMCID: PMC6637499 DOI: 10.1186/s12885-019-5852-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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] [Received: 02/01/2019] [Accepted: 06/19/2019] [Indexed: 01/07/2023] Open
Abstract
Background Glioblastoma (GBM) is an extremely deadly form of brain cancer with limited treatment options and thus novel therapeutic modalities are necessary. Histone deacetylase inhibitors (HDACi) have demonstrated clinical and preclinical activities against GBM. (Silent mating type information regulation 2 homolog, Sirt1) abbreviated as Sirtuin 1, has been implicated in GBM. We explored the activity of the Sirt1 activator SRT2183 in glioma cell lines in terms of biological response. Methods The effects of SRT2183 on glioma cell growth and neurosphere survival were evaluated in vitro using the CCK-8, clonogenic and neurosphere assays, respectively. Glioma cell cycle arrest and apoptosis were determined by flow cytometry. SRT2183-induced autophagy was investigated by detection of GFP-microtubule-associated protein 1 light chain 3 (GFP-LC3) puncta, conversion of the nonlipidated form of LC3 (LC3-I) to the phosphatidylethanolamine-conjugated form (LC3-II). Acetylation of STAT3 and NF-κB in SRT2183-treated glioma cells was examined using immunoprecipitation. The expression levels of anti-apoptotic proteins were assayed by immunoblotting. Results SRT2183 suppressed glioma cell growth and destroyed neurospheres in vitro. Furthermore, SRT2183 induced glioma cell cycle arrest and apoptosis, accompanying by upregulation of the pro-apoptotic Bim and downregulation of Bcl-2 and Bcl-xL. Notably, ER stress was triggered in glioma cells upon exposure to SRT2183 while the pre-exposure to 4-PBA, an ER stress inhibitor, significantly antagonized SRT2183-mediated growth inhibition in glioma cells. In addition, SRT2183 induced autophagy in glioma cells and pharmacological modulation of autophagy appeared not to affect SRT2183-inhibited cell growth. Of interest, the acetylation and phosphorylation of p65 NF-κB and STAT3 in glioma cells were differentially affected by SRT2183. Conclusions Our data suggest the ER stress pathway is involved in SRT2183-mediated growth inhibition in glioma. Further investigation in vivo is needed to consolidate the data.
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Affiliation(s)
- Tian Ye
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Liwen Wei
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Ji Shi
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China
| | - Ke Jiang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044, China
| | - Huizhe Xu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044, China
| | - Lulu Hu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044, China
| | - Lingkai Kong
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044, China
| | - Ye Zhang
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China.
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044, China.
| | - Haozhe Piao
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning Province, China.
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27
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Shao X, Wang X, Guo X, Jiang K, Ye T, Chen J, Fang J, Gu L, Wang S, Zhang G, Meng S, Xu Q. STAT3 Contributes To Oncolytic Newcastle Disease Virus-Induced Immunogenic Cell Death in Melanoma Cells. Front Oncol 2019; 9:436. [PMID: 31192135 PMCID: PMC6548873 DOI: 10.3389/fonc.2019.00436] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [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: 01/29/2019] [Accepted: 05/07/2019] [Indexed: 12/15/2022] Open
Abstract
Background: Oncolytic viruses (OVs) are emerging as potent inducers of immunogenic cell death (ICD), releasing danger-associated molecular patterns (DAMPs) that induce potent anticancer immunity. Oncolytic Newcastle disease virus (NDV) has been shown to educe ICD in both glioma and lung cancer cells. The objective of this study is to investigate whether oncolytic NDV induces ICD in melanoma cells and how it is regulated. Methods: Various time points were actuated to check the expression and release of ICD markers induced by NDV strain, NDV/FMW in melanoma cell lines. The expression and release of ICD markers induced by oncolytic NDV strain, NDV/FMW, in melanoma cell lines at various time points were determined. Surface-exposed calreticulin (CRT) was inspected by confocal imaging. The supernatants of NDV/FMW infected cells were collected and concentrated for the determination of ATP secretion by ELISA, HMGB1, and HSP70/90 expression by immunoblot (IB) analysis. Pharmacological inhibition of apoptosis, autophagy, necroptosis, ER Stress, and STAT3 (signal transducer and activator of transcription 3) was achieved by treatment with small molecule inhibitors. Melanoma cell lines stably depleted of STAT3 were established with lentiviral constructs. Supernatants from NDV-infected cells were intratumorally injected to mice bearing melanoma cells-derived tumors. Results: Oncolytic NDV induced CRT exposure, the release of HMGB1 and HSP70/90 as well as secretion of ATP in melanoma cells. Inhibition of apoptosis, autophagy, necroptosis or ER stress attenuated NDV/FMW-induced release of HMGB1 and HSP70/90. Moreover, NDV/FMW-induced ICD markers in melanoma cells were also suppressed by either treatment with a STAT3 inhibitor or shRNA-mediated depletion of STAT3. Of translational importance, treatment of mice bearing melanoma cells-derived tumors with supernatants from NDV/FMW-infected cells significantly inhibited tumor growth. Conclusions: Our data authenticate that oncolytic NDV/FMW might be a potent inducer of ICD in melanoma cells, which is amalgamated with several forms of cell death. We also show that STAT3 plays a role in NDV/FMW-induced ICD in melanoma cells. Together, our data highlight oncolytic NDV as propitious for cancer therapeutics by stimulatingan anti-melanoma immune response.
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Affiliation(s)
- Xiaoyan Shao
- Department of Medical Oncology, School of Medicine, Shanghai Tenths People's Hospital, Tongji University, Shanghai, China.,Department of Oncology, Dermatology Hospital, TongJi University, Shanghai, China.,Tongji University Cancer Center, Shanghai, China
| | - Xueke Wang
- Department of Medical Oncology, School of Medicine, Shanghai Tenths People's Hospital, Tongji University, Shanghai, China.,Department of Oncology, Dermatology Hospital, TongJi University, Shanghai, China.,Tongji University Cancer Center, Shanghai, China
| | - Xianling Guo
- Department of Medical Oncology, School of Medicine, Shanghai Tenths People's Hospital, Tongji University, Shanghai, China.,Department of Oncology, Dermatology Hospital, TongJi University, Shanghai, China.,Tongji University Cancer Center, Shanghai, China
| | - Ke Jiang
- Dalian Medical University Cancer Center, Institute of Cancer Stem Cell, Dalian, China
| | - Tian Ye
- Dalian Medical University Cancer Center, Institute of Cancer Stem Cell, Dalian, China
| | - Jianhua Chen
- Department of Medical Oncology, School of Medicine, Shanghai Tenths People's Hospital, Tongji University, Shanghai, China.,Department of Oncology, Dermatology Hospital, TongJi University, Shanghai, China.,Tongji University Cancer Center, Shanghai, China
| | - Juemin Fang
- Department of Medical Oncology, School of Medicine, Shanghai Tenths People's Hospital, Tongji University, Shanghai, China.,Department of Oncology, Dermatology Hospital, TongJi University, Shanghai, China.,Tongji University Cancer Center, Shanghai, China
| | - Linaer Gu
- Department of Medical Oncology, School of Medicine, Shanghai Tenths People's Hospital, Tongji University, Shanghai, China.,Department of Oncology, Dermatology Hospital, TongJi University, Shanghai, China.,Tongji University Cancer Center, Shanghai, China
| | - Sitong Wang
- Department of Medical Oncology, School of Medicine, Shanghai Tenths People's Hospital, Tongji University, Shanghai, China.,Department of Oncology, Dermatology Hospital, TongJi University, Shanghai, China.,Tongji University Cancer Center, Shanghai, China
| | - Guirong Zhang
- Central laboratory, Cancer School of Medicine, Liaoning Cancer Hospital and Institute, Hospital of China Medical University, Shenyang, China
| | - Songshu Meng
- Dalian Medical University Cancer Center, Institute of Cancer Stem Cell, Dalian, China
| | - Qing Xu
- Department of Medical Oncology, School of Medicine, Shanghai Tenths People's Hospital, Tongji University, Shanghai, China.,Department of Oncology, Dermatology Hospital, TongJi University, Shanghai, China.,Tongji University Cancer Center, Shanghai, China
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Zhang X, Kumstel S, Jiang K, Meng S, Gong P, Vollmar B, Zechner D. LW6 enhances chemosensitivity to gemcitabine and inhibits autophagic flux in pancreatic cancer. J Adv Res 2019; 20:9-21. [PMID: 31193017 PMCID: PMC6514270 DOI: 10.1016/j.jare.2019.04.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 11/08/2018] [Revised: 04/18/2019] [Accepted: 04/19/2019] [Indexed: 12/16/2022] Open
Abstract
LW6 inhibits proliferation and induces cell death in pancreatic cancer cells. LW6 improves the anti-proliferation efficacy of gemcitabine. LW6 enhances gemcitabine-induced cell death. LW6 in combination with gemcitabine decreases tumor weight. LW6 inhibits autophagic flux.
The efficacy of gemcitabine therapy is often insufficient for the treatment of pancreatic cancer. The current study demonstrated that LW6, a chemical inhibitor of hypoxia-inducible factor 1α, is a promising drug for enhancing the chemosensitivity to gemcitabine. LW6 monotherapy and the combination therapy of LW6 plus gemcitabine significantly inhibited cell proliferation and enhanced cell death in pancreatic cancer cells. This combination therapy also significantly reduced the tumor weight in a syngeneic orthotopic pancreatic carcinoma model without causing toxic side effects. In addition, this study provides insight into the mechanism of how LW6 interferes with the pathophysiology of pancreatic cancer. The results revealed that LW6 inhibited autophagic flux, which is defined by the accumulation of microtubule-associated protein 1 light chain 3 (LC3) and p62/SQSTM1. Moreover, these results were verified by the analysis of a tandem RFP-GFP-tagged LC3 protein. Thence, for the first time, these data demonstrate that LW6 enhances the anti-tumor effects of gemcitabine and inhibits autophagic flux. This suggests that the combination therapy of LW6 plus gemcitabine may be a novel therapeutic strategy for pancreatic cancer patients.
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Affiliation(s)
- Xianbin Zhang
- Institute for Experimental Surgery, Rostock University Medical Center, Schillingallee 69a, 18059 Rostock, Germany
| | - Simone Kumstel
- Institute for Experimental Surgery, Rostock University Medical Center, Schillingallee 69a, 18059 Rostock, Germany
| | - Ke Jiang
- Cancer Center, Institute of Cancer Stem Cell, Dalian Medical University, Lvshun South Road 9W, 116044 Dalian, China
| | - Songshu Meng
- Cancer Center, Institute of Cancer Stem Cell, Dalian Medical University, Lvshun South Road 9W, 116044 Dalian, China
| | - Peng Gong
- Department of General Surgery, Shenzhen University General Hospital, Xueyuan Road 1098, 518055 Shenzhen, China
| | - Brigitte Vollmar
- Institute for Experimental Surgery, Rostock University Medical Center, Schillingallee 69a, 18059 Rostock, Germany
| | - Dietmar Zechner
- Institute for Experimental Surgery, Rostock University Medical Center, Schillingallee 69a, 18059 Rostock, Germany
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Kopf H, Schima W, Meng S. Erratum zu: Differenzialdiagnose von Befunden an der Gallenblase. Radiologe 2019; 59:368. [DOI: 10.1007/s00117-019-0518-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Bai Y, Liu X, Qi X, Liu X, Peng F, Li H, Fu H, Pei S, Chen L, Chi X, Zhang L, Zhu X, Song Y, Wang Y, Meng S, Jiang T, Shao S. PDIA6 modulates apoptosis and autophagy of non-small cell lung cancer cells via the MAP4K1/JNK signaling pathway. EBioMedicine 2019; 42:311-325. [PMID: 30922965 PMCID: PMC6491656 DOI: 10.1016/j.ebiom.2019.03.045] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/15/2019] [Accepted: 03/15/2019] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is the most common type of lung cancer with a poor prognosis. We previously found that protein disulfide isomerase family 6 (PDIA6) is upregulated in lung squamous cell carcinoma (LSCC). This study aimed to elucidate the clinical relevance, biological functions, and molecular mechanisms of PDIA6 in NSCLC. METHODS The expression of PDIA6 in NSCLC was assessed using the TCGA database, western blotting, and immunohistochemistry. Correlations of PDIA6 expression with clinicopathological and survival features were evaluated. The functions of PDIA6 in regulating NSCLC cell growth, apoptosis, and autophagy were investigated using gain-and loss-of-function strategies in vitro or in vivo. The underlying molecular mechanisms of PDIA6 function were examined by human phospho-kinase array and co-immunoprecipitation. FINDINGS PDIA6 expression was upregulated in NSCLC compared with adjacent normal tissues, and the higher PDIA6 expression was correlated with poor prognosis. PDIA6 knockdown decreased NSCLC cell proliferation and increased cisplatin-induced intrinsic apoptosis, while PDIA6 overexpression had the opposite effects. In addition, PDIA6 regulated cisplatin-induced autophagy, and this contributed to PDIA6-mediated apoptosis in NSCLC cells. Mechanistically, PDIA6 reduced the phosphorylation levels of JNK and c-Jun. Moreover, PDIA6 interacted with MAP4K1 and inhibited its phosphorylation, ultimately inhibiting the JNK/c-Jun signaling pathway. INTERPRETATION PDIA6 is overexpressed in NSCLC and inhibits cisplatin-induced NSCLC cell apoptosis and autophagy via the MAP4K1/JNK/c-Jun signaling pathway, suggesting that PDIA6 may serve as a biomarker and therapeutic target for NSCLC patients. FUND: National Natural Science Foundation of China and Institutions of higher learning of innovation team from Liaoning province.
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Affiliation(s)
- Yuxin Bai
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China
| | - Xuefeng Liu
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Xiaoyu Qi
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China
| | - Xuan Liu
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China
| | - Fang Peng
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China
| | - Huimin Li
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China
| | - Hailu Fu
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China
| | - Shimei Pei
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China
| | - Liying Chen
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China
| | - Xinming Chi
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China
| | - Liyuan Zhang
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China
| | - Xinbing Zhu
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Yang Song
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China
| | - Yang Wang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Tao Jiang
- Department of Andrology, The First Hospital Affiliated of Dalian Medical University, Dalian 116011, China.
| | - Shujuan Shao
- Key Laboratory of Proteomics, Dalian Medical University, Dalian 116044, China.
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Yan GS, Li LL, Jiang SL, Meng S, Wu CC. [Clinical study of different adsorbents with dual plasma molecular adsorption system in the treatment of hepatic failure]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:51-55. [PMID: 30685924 DOI: 10.3760/cma.j.issn.1007-3418.2019.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Objective: To investigate the effects of two different sorbents(Carbon perfusion apparatus and Resin perfusion apparatus)in Double plasma molecular absorb syetem for liver failure treatment. Methods: A total of 152 cases with liver failure who were admitted to The Sixth People's Hospital of Zhengzhou, from June 2016 to May 2018 were selected and divided into DPMARS Carbon group (77 cases) and Resin group (75 cases). The two groups were observed in terms of liver function, prothrombin activity(PTA),Plasma albumin ,tumor necrosis factor alpha and interleukin-6 were detected and compared between the two groups before and after treatment. Results: ①The clinical symptoms improved in different degree in two groups, the recovery rate of Carbon cans Carbon perfusion apparatus group and Resin group separately were89.6% (69/77)、90.7% (68/75)(χ(2) = 0.048, P = 0.975), there were no statistical differences. There were no statistical differences between the two groups in untoward reactions(χ(2) = 0.235, P = 0.995), ②Compared with before treatment, TBil(t = 3.735, 3.728; P = 0.000, 0.000)、ALT(t = 5.117, 5.203; P = 0.000, 0.000)、TNF-α (t = 3.158, 3.094; P = 0.000, 0.002)、IL-6(t = 3.647, 3.559; P = 0.002, 0.003)decreased and ALB (t = 2.300, 3.065; P = 0.024, 0.003) increased significantly after treatment in both groups, and there were statistical differences. There were no signifiant differences in the changes in ALB(t = 0.316, 0.209; P = 0.657, 0.720) and PTA(t = 0.810, 0.843; P = 0.429, 0.516). ③After treatment, there were no signifiant differences in the changes in TBil、ALT、ALB、PTA、TNF-α、IL-6(t = 0.377、0.904、-1.133、-1.552、0.841、0.401; P = 0.952、0.283、0.826、0.094、0.154、0.457). Conclusion: Double plasma molecular absorb syetem is effective in treating liver failure. Carbon perfusion apparatus or Resin perfusion apparatus can be combined with Specific bilirubin adsorption column for DPMARS in clinical treatment,and their effects are similar.
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Affiliation(s)
- G S Yan
- Department of Blood Purification, the Sixth People's Hospital of Zhengzhou, Zhengzhou 450000, China
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Li W, Gai M, Rutkowski S, He W, Meng S, Gorin D, Dai L, He Q, Frueh J. An Automated Device for Layer-by-Layer Coating of Dispersed Superparamagnetic Nanoparticle Templates. Colloid J 2019. [DOI: 10.1134/s1061933x18060078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Meng S, Mao J, Rouse EN, Le-Bel G, Bourget JM, Reed RR, Philippe E, How D, Zhang Z, Germain L, Guidoin R. The Red Kangaroo pericardium as a material source for the manufacture of percutaneous heart valves. Morphologie 2019; 103:37-47. [PMID: 30638803 DOI: 10.1016/j.morpho.2018.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 09/20/2018] [Accepted: 12/06/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND The kangaroo pericardium might be considered to be a good candidate material for use in the manufacture of the leaflets of percutaneous heart valves based upon the unique lifestyle. The diet consists of herbs, forbs and strubs. The kangaroo pericardium holds an undulated structure of collagen. MATERIAL AND METHOD A Red Kangaroo was obtained after a traffic fatality and the pericardium was dissected. Four compasses were cut from four different sites: auricular (AUR), atrial (ATR), sternoperitoneal (SPL) and phrenopericardial (PPL). They were investigated by means of scanning electron microscopy, light microscopy and transmission electron microscopy. RESULTS All the samples showed dense and wavy collagen bundles without vascularisation from both the epicardium and the parietal pericardium. The AUR and the ATR were 150±25μm thick whereas the SPL and the PPL were thinner at 120±20μm. The surface of the epicardium was smooth and glistening. The filaments of collagen were well individualized without any aggregation, but the banding was poorly defined and somewhat blurry. CONCLUSION This detailed morphological analysis of the kangaroo pericardium illustrated a surface resistant to thrombosis and physical characteristics resistant to fatigue. The morphological characteristics of the kangaroo pericardium indicate that it represents an outstanding alternative to the current sources e.g., bovine and porcine. However, procurement of tissues from the wild raises supply and sanitary issues. Health concerns based upon sanitary uncertainty and reliability of supply of wild animals remain real problems.
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Affiliation(s)
- S Meng
- Chongqing Key Lab of Catalysis and Functional Organic Molecules; College of Environment and Biotechnology, Chongqing Technology and Business University, Chongqing, PR China
| | - J Mao
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - E N Rouse
- Department of Comparative Medicine, College of Veterinary of Tennessee, Knoxville, TN, USA
| | - G Le-Bel
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - J M Bourget
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - R R Reed
- Department of Comparative Medicine, College of Veterinary of Tennessee, Knoxville, TN, USA
| | - E Philippe
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - D How
- Peninsula College of Medicine and Dentistry (PCMD), Plymouth, Devon, UK
| | - Z Zhang
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - L Germain
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - R Guidoin
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada.
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Sheng J, Zhao Q, Zhao J, Zhang W, Sun Y, Qin P, Lv Y, Bai L, Yang Q, Chen L, Qi Y, Zhang G, Zhang L, Gu C, Deng X, Liu H, Meng S, Gu H, Liu Q, Coulson JM, Li X, Sun B, Wang Y. SRSF1 modulates PTPMT1 alternative splicing to regulate lung cancer cell radioresistance. EBioMedicine 2018; 38:113-126. [PMID: 30429088 PMCID: PMC6306353 DOI: 10.1016/j.ebiom.2018.11.007] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/31/2018] [Accepted: 11/02/2018] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Radioresistance is the major cause of cancer treatment failure. Additionally, splicing dysregulation plays critical roles in tumorigenesis. However, the involvement of alternative splicing in resistance of cancer cells to radiotherapy remains elusive. We sought to investigate the key role of the splicing factor SRSF1 in the radioresistance in lung cancer. METHODS Lung cancer cell lines, xenograft mice models, and RNA-seq were employed to study the detailed mechanisms of SRSF1 in lung cancer radioresistance. Clinical tumor tissues and TCGA dataset were utilized to determine the expression levels of distinct SRSF1-regulated splicing isoforms. KM-plotter was applied to analyze the survival of cancer patients with various levels of SRSF1-regulated splicing isoforms. FINDINGS Splicing factors were screened to identify their roles in radioresistance, and SRSF1 was found to be involved in radioresistance in cancer cells. The level of SRSF1 is elevated in irradiation treated lung cancer cells, whereas knockdown of SRSF1 sensitizes cancer cells to irradiation. Mechanistically, SRSF1 modulates various cancer-related splicing events, particularly the splicing of PTPMT1, a PTEN-like mitochondrial phosphatase. Reduced SRSF1 favors the production of short isoforms of PTPMT1 upon irradiation, which in turn promotes phosphorylation of AMPK, thereby inducing DNA double-strand break to sensitize cancer cells to irradiation. Additionally, the level of the short isoform of PTPMT1 is decreased in cancer samples, which is correlated to cancer patients' survival. CONCLUSIONS Our study provides mechanistic analyses of aberrant splicing in radioresistance in lung cancer cells, and establishes SRSF1 as a potential therapeutic target for sensitization of patients to radiotherapy.
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Affiliation(s)
- Junxiu Sheng
- Department of Radiation Oncology, First Affiliated Hospital, Dalian Medical University, Dalian 116044, China
| | - Qingzhi Zhao
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Jinyao Zhao
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Wenjing Zhang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China.
| | - Yu Sun
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Pan Qin
- Faculty of electronic information and electrical engineering, Dalian university of Technology, Dalian 116001, China
| | - Yuesheng Lv
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Lu Bai
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Quan Yang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Lei Chen
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Yangfan Qi
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Ge Zhang
- Department of Immunology, Dalian Medical University, Dalian 116044, China
| | - Lin Zhang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Chundong Gu
- Department of Thoracic Surgery, First Affiliated Hospital, Dalian Medical University, Dalian 116044, China
| | - Xiaoqin Deng
- Department of Radiation Oncology, First Affiliated Hospital, Dalian Medical University, Dalian 116044, China
| | - Han Liu
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Hong Gu
- Faculty of electronic information and electrical engineering, Dalian university of Technology, Dalian 116001, China
| | - Quentin Liu
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
| | - Judy M Coulson
- Cellular & Molecular Physiology Department, University of Liverpool, UKL69 3BX, UK
| | - Xiaoling Li
- Signal Transduction Laboratory, NIEHS, RTP, NC 27709, USA
| | - Bing Sun
- Department of Thoracic Surgery, First Affiliated Hospital, Dalian Medical University, Dalian 116044, China.
| | - Yang Wang
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China.
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Ye T, Jiang K, Wei L, Barr MP, Xu Q, Zhang G, Ding C, Meng S, Piao H. Oncolytic Newcastle disease virus induces autophagy-dependent immunogenic cell death in lung cancer cells. Am J Cancer Res 2018; 8:1514-1527. [PMID: 30210920 PMCID: PMC6129498] [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: 05/24/2018] [Accepted: 07/30/2018] [Indexed: 06/08/2023] Open
Abstract
In addition to direct oncolysis, oncolytic viruses trigger immunogenic cell death (ICD) and primes antitumor immunity. We have previously shown that oncolytic Newcastle disease virus (NDV), strain FMW (NDV/FMW), induces apoptosis and/or autophagy in cancer cells. In this study, we investigated whether oncolytic NDV can induce ICD in lung cancer cells and whether apoptosis or autophagy plays a role in NDV-triggered ICD. To this end, we examined cell surface expression of calreticulin (CRT) on NDV-infected lung cancer cells and measured ICD determinants, high mobility group box 1 (HMGB1), heat shock protein 70/90 (HSP70/90) and ATP in supernatants following viral infection. Flow cytometric analysis using anti-CRT antibody and PI staining of NDV-infected lung cancer cells showed an increase in the number of viable (propidium iodide-negative) cells, suggesting the induction of CRT exposure upon NDV infection. In addition, confocal and immunoblot analysis using anti-CRT antibody showed that an enhanced accumulation of CRT on the cell surface of NDV-infected cells, indicating the translocation of CRT to the cell membrane upon NDV infection. We further demonstrated that NDV infection induced the release of secreted HMGB1 and HSP70/90 by examining the concentrated supernatants of NDV-infected cells. Furthermore, pre-treatment with either the pan-caspase inhibitor z-VAD-FMK or the necrosis inhibitor Necrostain-1, had no impact on NDV-induced release of ICD determinants in lung cancer cells. Rather, depletion of autophagy-related genes in lung cancer cells significantly inhibited the induction of ICD determinants by NDV. Of translational importance, in a lung cancer xenograft model, treatment of mice with supernatants from NDV-infected cells significantly inhibited tumour growth. Together, these results indicate that oncolytic NDV is a potent ICD-inducer and that autophagy contributes to NDV-mediated induction of ICD in lung cancer cells.
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Affiliation(s)
- Tian Ye
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & InstituteShenyang, China
- Central Laboratory, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & InstituteShenyang, China
- Institute of Cancer Stem Cell, Dalian Medical UniversityDalian, China
| | - Ke Jiang
- Institute of Cancer Stem Cell, Dalian Medical UniversityDalian, China
| | - Liwen Wei
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & InstituteShenyang, China
| | - Martin P Barr
- Thoracic Oncology Research Group, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences St. James’s Hospital & Trinity College DublinDublin, Ireland
| | - Qing Xu
- Department of Oncology, Shanghai Tenth People’s Hospital, Tongji UniversityShanghai, China
- Tongji University Cancer CenterShanghai, China
- Department of Oncology, Dermatology Hospital, Tongji UniversityShanghai, China
| | - Guirong Zhang
- Central Laboratory, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & InstituteShenyang, China
| | - Chan Ding
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural ScienceShanghai, China
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical UniversityDalian, China
| | - Haozhe Piao
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & InstituteShenyang, China
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Liu M, Jiang K, Lin G, Liu P, Yan Y, Ye T, Yao G, Barr MP, Liang D, Wang Y, Gong P, Meng S, Piao H. Ajuba inhibits hepatocellular carcinoma cell growth via targeting of β-catenin and YAP signaling and is regulated by E3 ligase Hakai through neddylation. J Exp Clin Cancer Res 2018; 37:165. [PMID: 30041665 PMCID: PMC6057013 DOI: 10.1186/s13046-018-0806-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/20/2018] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Aberrant activation of β-catenin and Yes-associated protein (YAP) signaling pathways has been associated with hepatocellular carcinoma (HCC) progression. The LIM domain protein Ajuba regulates β-catenin and YAP signaling and is implicated in tumorigenesis. However, roles and mechanism of Ajuba expression in HCC cells remain unclear. The E3 ligase Hakai has been shown to interact with other Ajuba family members and whether Hakai interacts and regulates Ajuba is unknown. METHODS HCC cell lines stably depleted of Ajuba or Hakai were established using lentiviruses expressing shRNAs against Ajuba or Hakai. The effects of Ajuba on HCC cells were determined by a number of cell-based analyses including anchorage-independent growth, three dimension cultures and trans-well invasion assay. In vivo tumor growth was determined in a xenograft model and Ajuba expression in tumor sections was examined by immunohistochemistry. Co-immunoprecipitation, confocal microscopy and immunoblot assay were used to examine the expression and interaction between Ajuba and Hakai. RESULTS Depletion of Ajuba in HCC cells significantly enhanced anchorage-independent growth, invasion, the formation of spheroids and tumor growth in a xenograft model, suggesting a tumor suppressor function for Ajuba in HCC. Mechanistically, Ajuba depletion triggered E-cadherin loss and β-catenin translocation with increased Cyclin D1 levels. In addition, depletion of Ajuba upregulated the levels of YAP and its target gene CYR61. Furthermore, siRNA-mediated knockdown of either β-catenin or YAP attenuated the pro-tumor effects by Ajuba depletion on HCC cells. Notably, Ajuba stability in HCC cells was regulated by Hakai, an E3 ligase for E-cadherin. Hakai interacted with Ajuba via its HYB domain and induced Ajuba neddylation, which was antagonized by the neddylation inhibitor, MLN4924, but not MG132. We further show that overexpression of Hakai in HCC cells markedly increased anchorage-independent growth, spheroid-formation ability and tumor growth in xenografts whereas Hakai depletion resulted in these opposite effects, indicating an oncogenic role for Hakai in HCC. Hakai also induced β-catenin translocation with increased levels of Cyclin D1. CONCLUSIONS Our data suggest a role for Ajuba and Hakai in HCC, and uncover the mechanism underlying the regulation of Ajuba stability.
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Affiliation(s)
- Min Liu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044 China
| | - Ke Jiang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044 China
- Department of neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042 Liaoning Province China
| | - Guibin Lin
- Huizhou No. 3 People’s Hospital, Affiliated Hospital of Guangzhou Medical University, No. 1 Xuebei Street, Qiaodong Road, Huizhou, 615000 China
| | - Peng Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Dalian Medical University, No. 222 Zhongshan Road, Dalian, 116021 China
| | - Yumei Yan
- The First Department of Ultrasound, The First Affiliated Hospital, Dalian Medical University, No. 222 Zhongshan Road, Dalian, 116021 China
| | - Tian Ye
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044 China
| | - Gang Yao
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044 China
| | - Martin P. Barr
- Thoracic Oncology Research Group, Institute of Molecular Medicine, Trinity Centre for Health Sciences, St. James’s Hospital & Trinity College, Dublin, Ireland
| | - Dapeng Liang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044 China
| | - Yang Wang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044 China
| | - Peng Gong
- Department of general surgery, Shenzhen University General Hospital, No. 1098 Xueyuan Road, Shenzhen, 518055 China
- Carson International Cancer Research Centre, Shenzhen University School of Medicine, No.3688 Nanhai Road, Shenzhen, 518060 China
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9 Lvshun Road South, Dalian, 116044 China
| | - Haozhe Piao
- Department of neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042 Liaoning Province China
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Jiang K, Song C, Kong L, Hu L, Lin G, Ye T, Yao G, Wang Y, Chen H, Cheng W, Barr MP, Liu Q, Zhang G, Ding C, Meng S. Recombinant oncolytic Newcastle disease virus displays antitumor activities in anaplastic thyroid cancer cells. BMC Cancer 2018; 18:746. [PMID: 30021550 PMCID: PMC6052588 DOI: 10.1186/s12885-018-4522-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 10/13/2017] [Accepted: 05/18/2018] [Indexed: 12/31/2022] Open
Abstract
Background Anaplastic thyroid cancer (ATC) is one of the most aggressive of all solid tumors for which no effective therapies are currently available. Oncolytic Newcastle disease virus (NDV) has shown the potential to induce oncolytic cell death in a variety of cancer cells of diverse origins. However, whether oncolytic NDV displays antitumor effects in ATC remains to be investigated. We have previously shown that the oncolytic NDV strain FMW (NDV/FMW) induces oncolytic cell death in several cancer types. In the present study, we investigated the oncolytic effects of NDV/FMW in ATC. Methods In this study, a recombinant NDV expressing green fluorescent protein (GFP) was generated using an NDV reverse genetics system. The resulting virus was named after rFMW/GFP and the GFP expression in infected cells was demonstrated by direct fluorescence and immunoblotting. Viral replication was evaluated by end-point dilution assay in DF-1 cell lines. Oncolytic effects were examined by biochemical and morphological experiments in cultural ATC cells and in mouse models. Results rFMW/GFP replicated robustly in ATC cells as did its parent virus (NDV/FMW) while the expression of GFP protein was detected in lungs and spleen of mice intravenously injected with rFMW/GFP. We further showed that rFMW/GFP infection substantially increased early and late apoptosis in the ATC cell lines, THJ-16 T and THJ-29 T and increased caspase-3 processing and Poly (ADP-ribose) polymerase (PARP) cleavage in ATC cells as assessed by immunoblotting. In addition, rFMW/GFP induced lyses of spheroids derived from ATC cells in three-dimensional (3D) cultures. We further demonstrated that rFMW/GFP infection resulted in the activation of p38 MAPK signaling, but not Erk1/2 or JNK, in THJ-16 T and THJ-29 T cells. Notably, inhibition of p38 MAPK activity by SB203580 decreased rFMW/GFP-induced cleavage of caspase-3 and PARP in THJ-16 T and THJ-29 T cells. Finally, both rFMW/GFP and its parent virus inhibited tumor growth in mice bearing THJ-16 T derived tumors. Conclusion Taken together, these data indicate that both the recombinant reporter virus rFMW/GFP and its parent virus NDV/FMW, display oncolytic activities in ATC cells in vitro and in vivo and suggest that oncolytic NDV may have potential as a novel therapeutic strategy for ATC. Electronic supplementary material The online version of this article (10.1186/s12885-018-4522-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ke Jiang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Room 415, 9 Lvshun Road South, Dalian, 116044, China
| | - Cuiping Song
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 518 Ziyue Road, Shanghai, 200241, China
| | - Lingkai Kong
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Room 415, 9 Lvshun Road South, Dalian, 116044, China
| | - Lulu Hu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Room 415, 9 Lvshun Road South, Dalian, 116044, China
| | - Guibin Lin
- Laboratory Center, The Third People's Hospital of Huizhou, Affiliated Hospital Guangzhou Medical University, Huizhou, 516002, China
| | - Tian Ye
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Room 415, 9 Lvshun Road South, Dalian, 116044, China
| | - Gang Yao
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Room 415, 9 Lvshun Road South, Dalian, 116044, China
| | - Yupeng Wang
- Department of Dermatology of First Affiliated Hospital, Dalian Medical University, No. 222 Zhongshan Road, Dalian, 116021, China
| | - Haibo Chen
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Room 415, 9 Lvshun Road South, Dalian, 116044, China
| | - Wei Cheng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Room 415, 9 Lvshun Road South, Dalian, 116044, China
| | - Martin P Barr
- Thoracic Oncology Research Group, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences St. James's Hospital and Trinity College Dublin, Dublin, Ireland
| | - Quentin Liu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Room 415, 9 Lvshun Road South, Dalian, 116044, China
| | - Guirong Zhang
- Central laboratory, Liaoning Cancer Hospital and Institute, Cancer Hospital of China Medical University, 44 Xiaoheyan Road, Shenyang, 110042, China.
| | - Chan Ding
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 518 Ziyue Road, Shanghai, 200241, China.
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Room 415, 9 Lvshun Road South, Dalian, 116044, China.
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Strobel D, Meng S. Diagnostic ultrasound performed by a physician as a dialog. Ultraschall Med 2018; 39:251-252. [PMID: 29879748 DOI: 10.1055/a-0593-8473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Jiang J, Meng S, Huang S, Ruan Y, Lu X, Li JZ, Wu N, Huang J, Xie Z, Liang B, Deng J, Zhou B, Chen X, Ning C, Liao Y, Wei W, Lai J, Ye L, Wu F, Liang H. Effects of Talaromyces marneffei infection on mortality of HIV/AIDS patients in southern China: a retrospective cohort study. Clin Microbiol Infect 2018; 25:233-241. [PMID: 29698815 DOI: 10.1016/j.cmi.2018.04.018] [Citation(s) in RCA: 40] [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] [Received: 01/09/2018] [Revised: 04/17/2018] [Accepted: 04/18/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVE Talaromyces marneffei is an opportunistic infection with high morbidity among human immunodeficiency virus (HIV)/AIDS patients in Southeast Asia and southern China. Its effects on mortality in HIV/AIDS patients has not been clearly elucidated. METHODS We conducted a retrospective cohort study of hospitalized HIV-infected individuals at the Fourth People's Hospital of Nanning, Guangxi, China during 2012-2015. Kaplan-Meier analyses were used to calculate the cumulative mortality. Cox proportional hazard models and 1:1 propensity score matching (PSM) were used to evaluate the effects of T. marneffei infection on mortality of HIV/AIDS patients. RESULTS In total, 6791 HIV/AIDS patients were included, 1093 of them (16.1%) with documented T. marneffei co-infection. The mortality of T. marneffei-infected patients (25.0 per 100 person-months, 95% CI 21.5-26.7) was the highest among all AIDS-associated complications and was significantly higher than that of T. marneffei-uninfected HIV/AIDS patients (13.8 per 100 person-months, 95% CI 12.5-15.1; adjusted hazard ratio (AHR) 1.80, 95% CI 1.48-2.16). The results using PSM were similar (AHR 4.52 95% CI 2.43-8.42). The mortality of T. marneffei-infected patients was also significantly higher than that of patients without any complications. When stratified by demographic characteristics, T. marneffei infection has higher mortality risk in all stratifications. Co-infection with T. marneffei carries a higher mortality risk in patients at any CD4+ T-cell count. CONCLUSIONS Talaromyces marneffei infection is commonly found in hospitalized HIV/AIDS patients in southern China and was associated with a higher mortality rate than most HIV-associated complications. These results highlight the need for improved diagnosis, treatment and prevention of infection by this neglected fungal pathogen in southern China.
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Affiliation(s)
- J Jiang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - S Meng
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - S Huang
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - Y Ruan
- State Key Laboratory of Infectious Disease Prevention and Control (SKLID), Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Chinese Centre for Disease Control and Prevention (China CDC), Beijing, China
| | - X Lu
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - J Z Li
- Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA
| | - N Wu
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - J Huang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Z Xie
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - B Liang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - J Deng
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - B Zhou
- Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - X Chen
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - C Ning
- Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - Y Liao
- Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - W Wei
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - J Lai
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - L Ye
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China.
| | - F Wu
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China.
| | - H Liang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China.
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40
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Abstract
Autophagy is a homoeostatic process by which cytoplasmic material is targeted for degradation by the cell. Viruses have learned to manipulate the autophagic pathway to ensure their own replication and survival. Although much progress has been achieved in dissecting the interplay between viruses and cellular autophagic machinery, it is not well understood how the cellular autophagic pathway is utilized by viruses and manipulated to their own advantage. In this review, we briefly introduce autophagy, viral xenophagy and the interaction among autophagy, virus and immune response, then focus on the interplay between NS-RNA viruses and autophagy during virus infection. We have selected some exemplary NS-RNA viruses and will describe how these NS-RNA viruses regulate autophagy and the role of autophagy in NS-RNA viral replication and in immune responses to virus infection. We also review recent advances in understanding how NS-RNA viral proteins perturb autophagy and how autophagy-related proteins contribute to NS-RNA virus replication, pathogenesis and antiviral immunity.
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Affiliation(s)
- Yupeng Wang
- Department of Dermatology of First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Ke Jiang
- Cancer Center, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Quan Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Songshu Meng
- Cancer Center, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Chan Ding
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
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Jiang K, Liu M, Lin G, Mao B, Cheng W, Liu H, Gal J, Zhu H, Yuan Z, Deng W, Liu Q, Gong P, Bi X, Meng S. Tumor suppressor Spred2 interaction with LC3 promotes autophagosome maturation and induces autophagy-dependent cell death. Oncotarget 2018; 7:25652-67. [PMID: 27028858 PMCID: PMC5041934 DOI: 10.18632/oncotarget.8357] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [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: 04/13/2015] [Accepted: 03/12/2016] [Indexed: 12/17/2022] Open
Abstract
The tumor suppressor Spred2 (Sprouty-related EVH1 domain-2) induces cell death in a variety of cancers. However, the underlying mechanism remains to be elucidated. Here we show that Spred2 induces caspase-independent but autophagy-dependent cell death in human cervical carcinoma HeLa and lung cancer A549 cells. We demonstrate that ectopic Spred2 increased both the conversion of microtubule-associated protein 1 light chain 3 (LC3), GFP-LC3 puncta formation and p62/SQSTM1 degradation in A549 and HeLa cells. Conversely, knockdown of Spred2 in tumor cells inhibited upregulation of autophagosome maturation induced by the autophagy inducer Rapamycin, which could be reversed by the rescue Spred2. These data suggest that Spred2 promotes autophagy in tumor cells. Mechanistically, Spred2 co-localized and interacted with LC3 via the LC3-interacting region (LIR) motifs in its SPR domain. Mutations in the LIR motifs or deletion of the SPR domain impaired Spred2-mediated autophagosome maturation and tumor cell death, indicating that functional LIR is required for Spred2 to trigger tumor cell death. Additionally, Spred2 interacted and co-localized with p62/SQSTM1 through its SPR domain. Furthermore, the co-localization of Spred2, p62 and LAMP2 in HeLa cells indicates that p62 may be involved in Spred2-mediated autophagosome maturation. Inhibition of autophagy using the lysosomal inhibitor chloroquine, reduced Spred2-mediated HeLa cell death. Silencing the expression of autophagy-related genes ATG5, LC3 or p62 in HeLa and A549 cells gave similar results, suggesting that autophagy is required for Spred2-induced tumor cell death. Collectively, these data indicate that Spred2 induces tumor cell death in an autophagy-dependent manner.
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Affiliation(s)
- Ke Jiang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Dalian, China
| | - Min Liu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Dalian, China
| | - Guibin Lin
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Beibei Mao
- State Key Laboratory of Brain and Cognitive Sciences, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Wei Cheng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Dalian, China
| | - Han Liu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Dalian, China
| | - Jozsef Gal
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, Kentucky, USA
| | - Haining Zhu
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, Kentucky, USA
| | - Zengqiang Yuan
- State Key Laboratory of Brain and Cognitive Sciences, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Wuguo Deng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Dalian, China
| | - Quentin Liu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Dalian, China
| | - Peng Gong
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiaolin Bi
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Dalian, China
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, Dalian, China
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Grisold A, Meng S, Ackerl M, Grisold W. Late effect of mantle-field radiotherapy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Ackerl M, Grisold A, Surboeck B, Meng S, Giometto B, Grisold W. Lymphoma and mononeuropathies - A rare association. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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44
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Zhou L, Yang L, Zhou X, Lv X, Song J, Meng S, Yue J, Yang S, Ji L. A comparison of HbA 1c concentration in people with Type 2 diabetes at sea level and high altitude in China: an observational study. Diabet Med 2017; 34:862-864. [PMID: 28370237 DOI: 10.1111/dme.13356] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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] [Accepted: 03/21/2017] [Indexed: 11/29/2022]
Affiliation(s)
- L Zhou
- Department of Endocrinology and Metabolism, Peking University of People's Hospital, Beijing, China
| | - L Yang
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - X Zhou
- Department of Endocrinology and Metabolism, Peking University of People's Hospital, Beijing, China
| | - X Lv
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - J Song
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - S Meng
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - J Yue
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - S Yang
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - L Ji
- Department of Endocrinology and Metabolism, Peking University of People's Hospital, Beijing, China
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Zhou L, Song J, Yang S, Meng S, Lv X, Yue J, Mina A, Puchi B, Geng Y, Yang L. Bone mass loss is associated with systolic blood pressure in postmenopausal women with type 2 diabetes in Tibet: a retrospective cross-sectional study. Osteoporos Int 2017; 28:1693-1698. [PMID: 28154942 DOI: 10.1007/s00198-017-3930-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 01/19/2017] [Indexed: 01/31/2023]
Abstract
UNLABELLED We conducted an observational cross-section study to investigate the status of bone mineral mass of Tibetan postmenopausal women with type 2 diabetes and the possible predictors for osteoporosis. We found that prevalence of osteoporosis was 27.0% and blood pressure was an independent risk factor for bone mass loss. INTRODUCTION The aims of this study is to investigate the prevalence of osteoporosis in postmenopausal women with type 2 diabetes dwelling in Tibet and the possible risk factors for bone mass loss. METHODS We recruited 99 Chinese Tibetan postmenopausal women with type 2 diabetes from the department of endocrinology of People's Hospital Tibet Autonomous Region. Multiple sites of bone mineral density (BMD) were measured by dual-energy X-ray absorptiometry (DXA). The subjects were divided into three groups based on BMD T-score: osteoporosis, osteopenia, and normal. The clinical characteristics were compared between groups. The risk factors for bone mass loss were assessed by multiple linear regression analysis. RESULTS Among diabetic postmenopausal women dwelling in high altitude, mean age was 62 ± 8 years, the median postmenopausal period was 12 years (5, 20), the median duration of diabetes mellitus was 3 years (1, 8), and mean BMI was 27.6 ± 4.2 kg/m2. Patients (52.5%) had hypertension. The percentages of patients with osteoporosis, osteopenia and normal BMD were 27.3, 42.4, and 30.3%, respectively. HbA1c and systolic blood pressure (SBP) were independently associated with T-scores of spine; ages and SBP were independently associated with T-scores of femoral neck or hip. CONCLUSIONS Among diabetic postmenopausal women dwelling in high altitude, 27.3% patients have osteoporosis, 42.4% patients have osteopenia, and 30.3% are normal. The BMD T-score of spine was inversely associated with SBP and positively associated with HbA1c, while the BMD T-score of femoral neck or hip was inversely associated with ages and SBP.
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MESH Headings
- Absorptiometry, Photon/methods
- Aged
- Altitude
- Blood Pressure/physiology
- Bone Density/physiology
- Bone Diseases, Metabolic/epidemiology
- Bone Diseases, Metabolic/etiology
- Bone Diseases, Metabolic/physiopathology
- Cross-Sectional Studies
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/epidemiology
- Diabetes Mellitus, Type 2/physiopathology
- Female
- Humans
- Hypertension/complications
- Hypertension/epidemiology
- Hypertension/physiopathology
- Middle Aged
- Osteoporosis, Postmenopausal/epidemiology
- Osteoporosis, Postmenopausal/etiology
- Osteoporosis, Postmenopausal/physiopathology
- Prevalence
- Retrospective Studies
- Risk Factors
- Tibet/epidemiology
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Affiliation(s)
- L Zhou
- Department of Endocrinology and Metabolism, Peking University of People's Hospital, Beijing, China
| | - J Song
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - S Yang
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - S Meng
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - X Lv
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - J Yue
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - A Mina
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - B Puchi
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - Y Geng
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - L Yang
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China.
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Deng G, Ma J, Shen S, Li Q, Peng L, Meng S, Zhou J, Wu J, Liu D. Sofosbuvir Monotherapy for Asymptomatic and Noncirrhotic Hepatitis C Infection in a Renal Retransplantation Recipient: A Case Report. Transplant Proc 2017; 48:3120-3122. [PMID: 27932161 DOI: 10.1016/j.transproceed.2016.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/04/2016] [Indexed: 12/13/2022]
Abstract
Renal transplant recipients infected with hepatitis C virus (HCV) have a high risk of progressing to cirrhosis, end-stage liver diseases, and hepatocellular carcinoma. It is also considered as an independent risk for graft loss and is correlated with proteinuria, transplant glomerulopathy, HCV-associated glomerulonephritis, and chronic rejection. Previous therapy involving interferon alfa and ribavirin led to treatment complications, including toxicity, anemia, sepsis, and drug-drug interactions with calcineurin inhibitors, as well as reduced tolerability and efficacy. New direct-acting antiviral drugs simplify and shorten the treatment along with increasing tolerability and efficacy. Nevertheless, limited data and no specific regimen with direct-acting antiviral drugs have been described in the literature for renal transplant recipients with chronic HCV. We describe here the case of a 52-year-old Chinese man who diagnosed with chronic renal failure in 1997 and underwent renal transplantation the same year. In 2012, he was diagnosed with renal graft failure and again underwent hemodialysis. The patient then underwent his second renal transplantation and was administered an immunosuppressive cyclosporine-based regimen in 2015. During hemodialysis, he acquired asymptomatic genotype 1b HCV infection. Serologic test results reflecting liver cirrhosis were all negative, and ultrasound showed no abnormalities in the liver. The patient later required oral sofosbuvir monotherapy for 12 weeks after the second kidney transplantation. Curing HCV in renal transplant recipients is necessary. Although our treatment did not successfully result in a sustained virologic response, it suggests that genotype 1b HCV may have a poor response to a sofosbuvir monotherapy regimen. Specific and effective regimens for renal transplant recipients with HCV infection need to be confirmed in the future.
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Affiliation(s)
- G Deng
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - J Ma
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - S Shen
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - Q Li
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - L Peng
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - S Meng
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - J Zhou
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - J Wu
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - D Liu
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China.
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Ding Y, Zheng H, Feng C, Wang B, Liu C, Mi K, Cao H, Meng S. Heat-Shock Protein gp96 Enhances T Cell Responses and Protective Potential to Bacillus Calmette-Guérin Vaccine. Scand J Immunol 2017; 84:222-8. [PMID: 27417661 DOI: 10.1111/sji.12463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 07/12/2016] [Indexed: 01/28/2023]
Abstract
The commonly used Bacillus Calmette-Guérin (BCG) vaccine only induces moderate T cell responses and is less effective in protecting against pulmonary tuberculosis (TB) in adults and ageing populations. Thus, developing new TB vaccine candidates is an important strategy against the spread of Mycobacterium tuberculosis. Here, we demonstrated that immunization with heat-shock protein gp96 as an adjuvant led to a significantly increased CD4(+) and CD8(+) T cell response to a BCG vaccine. Secretion of the Th1-type cytokines was increased by splenocytes from gp96-immunized mice. In addition, adding gp96 as an adjuvant effectively improved the protection against intravenous challenge with Mycobacterium bovis BCG in mice. Our study reveals the novel property of gp96 in boosting the vaccine-specific T cell response and its potential use as an adjuvant for BCG vaccines against mycobacterial infection.
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Affiliation(s)
- Y Ding
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - H Zheng
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - C Feng
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - B Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - C Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - K Mi
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - H Cao
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China.
| | - S Meng
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China.
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Hu L, Jiang K, Ding C, Meng S. Targeting Autophagy for Oncolytic Immunotherapy. Biomedicines 2017; 5:biomedicines5010005. [PMID: 28536348 PMCID: PMC5423490 DOI: 10.3390/biomedicines5010005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 12/22/2016] [Accepted: 01/04/2017] [Indexed: 12/20/2022] Open
Abstract
Oncolytic viruses (OVs) are capable of exerting anti-cancer effects by a variety of mechanisms, including immune-mediated tumor cell death, highlighting their potential use in immunotherapy. Several adaptation mechanisms such as autophagy contribute to OV-mediated anti-tumor properties. Autophagy regulates immunogenic signaling during cancer therapy which can be utilized to design therapeutic combinations using approaches that either induce or block autophagy to potentiate the therapeutic efficacy of OVs. In this article, we review the complicated interplay between autophagy, cancer, immunity, and OV, summarize recent progress in the contribution of OV-perturbed autophagy to oncolytic immunity, and discuss the challenges in targeting autophagy to enhance oncolytic immunotherapy.
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Affiliation(s)
- Lulu Hu
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9Lvshun Road South, Dalian 116044, China.
| | - Ke Jiang
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9Lvshun Road South, Dalian 116044, China.
| | - Chan Ding
- Department of Avian Infectious Diseases, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200000, China.
| | - Songshu Meng
- Institute of Cancer Stem Cell, Dalian Medical University Cancer Center, 9Lvshun Road South, Dalian 116044, China.
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Zhang BJ, Meng S. [Research progress on cardiovascular dysfunction in offspring conceived by assisted reproductive technology]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:1064-1067. [PMID: 28056241 DOI: 10.3760/cma.j.issn.0253-3758.2016.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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50
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Houston M, Rountree R, Lamb J, Phipps S, Meng S, Zhang B. A placebo-controlled trial of a proprietary lipid-lowering nutraceutical supplement in the management of dyslipidemia. J BIOL REG HOMEOS AG 2016; 30:1115-1123. [PMID: 28078862] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
There is an ever growing emergence in the popularity of patient-driven care. As this health and wellness model grows, inquiries into diet, lifestyle, and supplemental approaches will continue to become a focal point for the healthcare consumer. Because of this, the aim of this study is to determine the tolerability, and overall effectiveness of a proprietary multi-ingredient lipid-lowering supplement in subjects with dyslipidemia. Forty participants were recruited for a single-center, double-blind randomized, placebocontrolled trial. Study participants were recruited between December 2014 and March 2015. Initial screening included a physical examination, renal and hepatic function, serum lipid, serum electrolytes, complete blood counts, and urine analysis. The 40 participants were randomly assigned to receive either the proprietary multi-ingredient lipid-lowering supplement (PMILLS) n= 20 or placebo n= 20. The trial consisted of a screening visit, a two-week run-in, and a four-month treatment period. Samples were taken at baseline, one month and four months of treatment. Results from the trial showed that the PMILLS significantly reduced total cholesterol (TC), low density lipoprotein (LDL-C), very low density lipoprotein (VLDL-C), oxidized LDL (oxLDL), Apo-lipoprotein B, triglycerides (TG), LDL particle number (LDL-P), heart rate, and diastolic blood pressure compared to placebo at one month and four months. The PMILLS significantly increased high density lipoprotein (HDL) particle number (HDL-P), and low density lipoprotein (LDL) particle size from dense type III and IV to larger type I and II LDL particle, compared to placebo at one month and four months. In addition, the PMILLS significantly reduced high sensitivity C-reactive protein (hs-CRP), tumor necrosis alpha (TNF-α), and interleukin 6 (IL-6) within the treatment group from baseline. There were no adverse effects noted in the treatment group after four months of supplementation. The present study demonstrates this PMILLS improves all relevant lipid parameters, such as particle numbers and particles sizes, as well as showing a significant reduction in inflammatory markers linked to cardiovascular health. With such combined changes in lipids, lipid sub-fractions, and inflammation, which are considered among the most effective means of reducing coronary heart disease (CHD), this PMILLS represents a new addition to safe and effective lipid-modifying strategies.
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Affiliation(s)
- M Houston
- Hypertension Institute of Nashville, Saint Thomas Hospital, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - R Rountree
- Thorne Research, Inc., Sandpoint, Idaho, USA
| | - J Lamb
- Hypertension Institute of Nashville, Saint Thomas Hospital, Nashville, Tennessee, USA
| | - S Phipps
- Thorne Research, Inc., Sandpoint, Idaho, USA
| | - S Meng
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
| | - B Zhang
- Thorne Research, Inc., Sandpoint, Idaho, USA
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