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Shen ZF, Li L, Wang JY, Liao J, Zhang YR, Zhu XM, Wang ZH, Lu JP, Liu XH, Lin FC. Csn5 inhibits autophagy by regulating the ubiquitination of Atg6 and Tor to mediate the pathogenicity of Magnaporthe oryzae. Cell Commun Signal 2024; 22:222. [PMID: 38594767 PMCID: PMC11003145 DOI: 10.1186/s12964-024-01598-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 03/26/2024] [Indexed: 04/11/2024] Open
Abstract
Csn5 is subunit 5 of the COP9 signalosome (CSN), but the mechanism by which it strictly controls the pathogenicity of pathogenic fungi through autophagy remains unclear. Here, we found that Csn5 deficiency attenuated pathogenicity and enhanced autophagy in Magnaporthe oryzae. MoCSN5 knockout led to overubiquitination and overdegradation of MoTor (the core protein of the TORC1 complex [target of rapamycin]) thereby promoted autophagy. In addition, we identified MoCsn5 as a new interactor of MoAtg6. Atg6 was found to be ubiquitinated through linkage with lysine 48 (K48) in cells, which is necessary for infection-associated autophagy in pathogenic fungi. K48-ubiquitination of Atg6 enhanced its degradation and thereby inhibited autophagic activity. Our experimental results indicated that MoCsn5 promoted K48-ubiquitination of MoAtg6, which reduced the MoAtg6 protein content and thus inhibited autophagy. Aberrant ubiquitination and autophagy in ΔMocsn5 led to pleiotropic defects in the growth, development, stress resistance, and pathogenicity of M. oryzae. In summary, our study revealed a novel mechanism by which Csn5 regulates autophagy and pathogenicity in rice blast fungus through ubiquitination.
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Affiliation(s)
- Zi-Fang Shen
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory of Agricultural Microbiome (MARA), Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory of Agricultural Microbiome (MARA), Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Lin Li
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory of Agricultural Microbiome (MARA), Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Jing-Yi Wang
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory of Agricultural Microbiome (MARA), Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Jian Liao
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory of Agricultural Microbiome (MARA), Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Yun-Ran Zhang
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory of Agricultural Microbiome (MARA), Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xue-Ming Zhu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory of Agricultural Microbiome (MARA), Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Zi-He Wang
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory of Agricultural Microbiome (MARA), Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiao-Hong Liu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory of Agricultural Microbiome (MARA), Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Fu-Cheng Lin
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory of Agricultural Microbiome (MARA), Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Zhejiang Provincial Key Laboratory of Agricultural Microbiomics, Key Laboratory of Agricultural Microbiome (MARA), Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China.
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Wu XY, Dong B, Zhu XM, Cai YY, Li L, Lu JP, Yu B, Cheng JL, Xu F, Bao JD, Wang Y, Liu XH, Lin FC. SP-141 targets Trs85 to inhibit rice blast fungus infection and functions as a potential broad-spectrum antifungal agent. Plant Commun 2024; 5:100724. [PMID: 37771153 PMCID: PMC10873891 DOI: 10.1016/j.xplc.2023.100724] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/12/2023] [Accepted: 09/25/2023] [Indexed: 09/30/2023]
Abstract
Rice blast is a devastating disease worldwide, threatening rice production and food security. The blast fungus Magnaporthe oryzae invades the host via the appressorium, a specialized pressure-generating structure that generates enormous turgor pressure to penetrate the host cuticle. However, owing to ongoing evolution of fungicide resistance, it is vitally important to identify new targets and fungicides. Here, we show that Trs85, a subunit of the transport protein particle III complex, is essential for appressorium-mediated infection in M. oryzae. We explain how Trs85 regulates autophagy through Ypt1 (a small guanosine triphosphatase protein) in M. oryzae. We then identify a key conserved amphipathic α helix within Trs85 that is associated with pathogenicity of M. oryzae. Through computer-aided screening, we identify a lead compound, SP-141, that affects autophagy and the Trs85-Ypt1 interaction. SP-141 demonstrates a substantial capacity to effectively inhibit infection caused by the rice blast fungus while also exhibiting wide-ranging potential as an antifungal agent with broad-spectrum activity. Taken together, our data show that Trs85 is a potential new target and that SP-141 has potential for the control of rice blast. Our findings thus provide a novel strategy that may help in the fight against rice blast.
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Affiliation(s)
- Xi-Yu Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Bo Dong
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310058, Zhejiang Province, China; Department of Pharmacology and Nutritional Science, College of Medicine, The University of Kentucky, Lexington, KY 40506, USA; Markey Cancer Center, College of Medicine, The University of Kentucky, Lexington, KY 40506, USA
| | - Xue-Ming Zhu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310058, Zhejiang Province, China
| | - Ying-Ying Cai
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Lin Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310058, Zhejiang Province, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Bin Yu
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Jing-Li Cheng
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Fei Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310058, Zhejiang Province, China
| | - Jian-Dong Bao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310058, Zhejiang Province, China
| | - Ying Wang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201106, Shanghai, China
| | - Xiao-Hong Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang Province, China.
| | - Fu-Cheng Lin
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, Zhejiang Province, China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310058, Zhejiang Province, China.
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Sun HJ, Zhang J, Lu JP, Wu MT. The Improvement in Function of Poststroke Spasticity by Vibrational and Heated Stone-Needle Therapy and Meridian Dredging Exercise: A Randomized, Controlled, Preliminary Trial. Complement Med Res 2023; 30:492-501. [PMID: 37944503 DOI: 10.1159/000534993] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 11/01/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND Poststroke spasticity (PSS) is a common complication of stroke. Current PSS treatments have been linked to high costs, lack of long-term effectiveness, and undesirable side effects. Vibrational and heated stone-needle therapy (VHS) has not been utilized to treat PSS, and its safety and effectiveness have yet to be proven by high-quality clinical research. OBJECTIVE The aim of this study was to determine the effectiveness of VHS combined with meridian dredging exercise (MDE) in patients with PSS. METHODS One hundred participants with stroke were included and randomly assigned to a treatment group (VHS plus MDEs) and a control group (MDEs alone). Patients in both groups were treated for 4 weeks. The primary outcome measures were the Modified Ashworth Scale (MAS) and Fugl-Meyer Assessment (FMA), while the secondary outcome measures were the Activity of Daily Living (ADL) Scale and Stroke-Specific Quality of Life Scale (SS-QOL). The evaluations were at baseline (T0) at 4 weeks of treatment (T1) and at 12 weeks of follow-up without treatment (T2). RESULTS At T1 and T2, there were significant differences in MAS between the two groups (p = 0.001). From the perspective of distribution, the VHS plus MDE group had significant changes, and the group-time interactions of upper and lower extremities in FMA, ADL, and SS-QOL were statistically significant (p < 0.001), indicating that patients' symptoms improved after treatment. But the overall effect size is small, especially the effect size of improvement in SS-QOL at T1. CONCLUSION VHS in combination with MDE can consistently alleviate PSS, enhance limb function, and improve the quality of life of patients with PSS. But we need to optimize the device further and observe the improvement of patients for a more extended period. Hintergrund Spastik nach Schlaganfall (PSS; post-stroke spasticity) ist eine häufige Komplikation des Schlaganfalls. Gegenwärtige PSS-Behandlungen sind mit hohen Kosten, mangelnder langfristiger Wirksamkeit und unerwünschten Nebenwirkungen in Verbindung gebracht worden. Vibrierende und erhitzte Steinnadeln (VHS) sind bisher nicht zur Behandlung des PSS eingesetzt worden, und der Nachweis ihrer Sicherheit und Wirksamkeit durch hochwertige klinische Forschung steht noch aus. Ziel Beurteilung der Wirksamkeit von vibrierenden und erhitzten Steinnadeln (VHS) in Kombination mit Meridian-Ausbagger-Übungen (MDE) bei Patienten mit PSS. Methoden 100 Patienten mit Schlaganfall wurden eingeschlossen und per Randomisierung auf eine Behandlungsgruppe (VHS plus MDEs) und eine Kontrollgruppe (nur MDE) aufgeteilt. In beiden Gruppen wurden die Patienten 4 Wochen lang behandelt. Die primären Messinstrumente waren die Modified Ashworth Scale (MAS) und das Fugl-Meyer Assessment (FMA), als sekundäre Messinstrumente wurden die Activity of Daily Living Scale (ADL) und die Stroke-Specific Quality of Life Scale (SS-QOL) erhoben. Die Beurteilungszeitpunkte waren bei Baseline (T0) nach 4 Wochen Behandlung (T1) und nach 12 Wochen Nachbeobachtung ohne Behandlung (T2). Ergebnisse Bei T1 und T2 bestanden signifikante Unterschiede bei der MAS zwischen den Gruppen ( p = 0.001). Aus der Perspektive der Distribution zeigte die “VHS plus MDE”-Gruppe signifikante Veränderungen, und die Gruppe*Zeit-Interaktionen der oberen and unteren Extremitäten bei FMA, ADL und SS-QOL waren statistisch signifikant ( p < 0.001), was darauf hindeutet, dass die Beschwerden der Patienten sich nach der Behandlung besserten. Die Effektstärke ist allerdings gering, insbesondere die der SS-QOL-Verbesserung bei T1. Schlussfolgerung Die Anwendung von vibrierenden und erhitzten Steinnadeln in Kombination mit Meridian-Ausbagger-Übungen kann PSS durchgängig lindern, die Funktion der Extremitäten verbessern und die Lebensqualität der Patienten mit PSS erhöhen. Jedoch muss das Produkt weiter optimiert werden, und die Verbesserungen bei den Patienten müssen über einen längeren Zeitraum beobachtet werden.
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Affiliation(s)
- Hui-Jun Sun
- Clinical Research and Trial Center, ShanghaiTech University, Shanghai, China,
- Integrated Chinese Medicine Treatment Department, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai, China,
| | - Jie Zhang
- Integrated Chinese Medicine Treatment Department, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai, China
| | - Jian-Ping Lu
- Clinical Research and Trial Center, ShanghaiTech University, Shanghai, China
- Nursing Department, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai, China
| | - Mei-Ting Wu
- School of Nursing and Health Management, Shanghai University of Medicine and Health Sciences, Shanghai, China
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Wang ZH, Shen ZF, Wang JY, Cai YY, Li L, Liao J, Lu JP, Zhu XM, Lin FC, Liu XH. MoCbp7, a Novel Calcineurin B Subunit-Binding Protein, Is Involved in the Calcium Signaling Pathway and Regulates Fungal Development, Virulence, and ER Homeostasis in Magnaporthe oryzae. Int J Mol Sci 2023; 24:ijms24119297. [PMID: 37298247 DOI: 10.3390/ijms24119297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/16/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023] Open
Abstract
Calcineurin, a key regulator of the calcium signaling pathway, is involved in calcium signal transduction and calcium ion homeostasis. Magnaporthe oryzae is a devastating filamentous phytopathogenic fungus in rice, yet little is known about the function of the calcium signaling system. Here, we identified a novel calcineurin regulatory-subunit-binding protein, MoCbp7, which is highly conserved in filamentous fungi and was found to localize in the cytoplasm. Phenotypic analysis of the MoCBP7 gene deletion mutant (ΔMocbp7) showed that MoCbp7 influenced the growth, conidiation, appressorium formation, invasive growth, and virulence of M. oryzae. Some calcium-signaling-related genes, such as YVC1, VCX1, and RCN1, are expressed in a calcineurin/MoCbp7-dependent manner. Furthermore, MoCbp7 synergizes with calcineurin to regulate endoplasmic reticulum homeostasis. Our research indicated that M. oryzae may have evolved a new calcium signaling regulatory network to adapt to its environment compared to the fungal model organism Saccharomyces cerevisiae.
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Affiliation(s)
- Zi-He Wang
- State Key Laboratory of Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Zi-Fang Shen
- State Key Laboratory of Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Jing-Yi Wang
- State Key Laboratory of Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Ying-Ying Cai
- State Key Laboratory of Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Lin Li
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jian Liao
- State Key Laboratory of Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xue-Ming Zhu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Fu-Cheng Lin
- State Key Laboratory of Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xiao-Hong Liu
- State Key Laboratory of Rice Biology and Breeding, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
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Tian X, Shi Z, Wang Z, Xu B, Peng WJ, Zhang XF, Liu Q, Chen SY, Tian B, Lu JP, Shao CW. Characteristics of culprit intracranial plaque without substantial stenosis in ischemic stroke using three-dimensional high-resolution vessel wall magnetic resonance imaging. Front Neurosci 2023; 17:1160018. [PMID: 37034175 PMCID: PMC10076565 DOI: 10.3389/fnins.2023.1160018] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/09/2023] [Indexed: 04/11/2023] Open
Abstract
Background and aims We aim to analyze the difference in quantitative features between culprit and non-culprit intracranial plaque without substantial stenosis using three-dimensional high-resolution vessel wall MRI (3D hr-vw-MRI). Methods The patients with cerebral ischemic symptoms of the unilateral anterior circulation were recruited who had non-stenotic intracranial atherosclerosis (<50%) confirmed by computed tomographic angiographic (CTA) or magnetic resonance angiography (MRA). All patients underwent 3D hr-vw MRI within 1 month after symptom onset. 3D hr-vw-MRI characteristics, including wall thickness, plaque burden, enhancement ratio, plaque volume and intraplaque hemorrhage, and histogram features were analyzed based on T2-, precontrast T1-, and post-contrast T1-weighted images. Univariate and multivariate logistic regression analysis were used to identify key determinates differentiating culprit and non-culprit plaques and to calculate the odds ratios (ORs) with 95% confidence intervals (CIs). Results A total of 150 plaques were identified, of which 133 plaques (97 culprit and 36 non-culprit) were in the middle cerebral artery, three plaques (all culprit) were in the anterior cerebral artery (ACA) and 14 (11 culprit and three non-culprit) were in the internal carotid artery (ICA). Of all the quantitative parameters analyzed, plaque volume, maximum wall thickness, minimum wall thickness, plaque burden, enhancement ratio, coefficient of variation of the most stenotic site, enhancement ratio of whole culprit plaque in culprit plaques were significantly higher than those in non-culprit plaques. Multivariate logistic regression analysis found that plaque volume [OR, 1.527 (95% CI, 1.231-1.894); P < 0.001] and enhancement ratio of whole plaque [OR, 1.095 (95% CI, 1.021-1.175); P = 0.011] were significantly associated with culprit plaque. The combination of the two features obtained a better diagnostic efficacy for culprit plaque with sensitivity and specificity (0.910 and 0.897, respectively) than each of the two parameters alone. Conclusion 3D hr-vw MRI features of intracranial atherosclerotic plaques provided potential values over prediction of ischemic stroke patients with non-stenotic arteries. The plaque volume and enhancement ratio of whole plaque of stenosis site were found to be effective predictive parameters.
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Affiliation(s)
- Xia Tian
- Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Zhang Shi
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhen Wang
- Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Bing Xu
- Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Wen-Jia Peng
- Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xue-Feng Zhang
- Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Qi Liu
- Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Shi-Yue Chen
- Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China
- Shi-Yue Chen,
| | - Bing Tian
- Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China
- *Correspondence: Bing Tian,
| | - Jian-Ping Lu
- Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Cheng-Wei Shao
- Department of Radiology, Changhai Hospital, Naval Medical University, Shanghai, China
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Cai YY, Li L, Zhu XM, Lu JP, Liu XH, Lin FC. The crucial role of the regulatory mechanism of the Atg1/ULK1 complex in fungi. Front Microbiol 2022; 13:1019543. [PMID: 36386635 PMCID: PMC9643702 DOI: 10.3389/fmicb.2022.1019543] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/10/2022] [Indexed: 12/05/2022] Open
Abstract
Autophagy, an evolutionarily conserved cellular degradation pathway in eukaryotes, is hierarchically regulated by autophagy-related genes (Atgs). The Atg1/ULK1 complex is the most upstream factor involved in autophagy initiation. Here,we summarize the recent studies on the structure and molecular mechanism of the Atg1/ULK1 complex in autophagy initiation, with a special focus on upstream regulation and downstream effectors of Atg1/ULK1. The roles of pathogenicity and autophagy aspects in Atg1/ULK1 complexes of various pathogenic hosts, including plants, insects, and humans, are also discussed in this work based on recent research findings. We establish a framework to study how the Atg1/ULK1 complex integrates the signals that induce autophagy in accordance with fungus to mammalian autophagy regulation pathways. This framework lays the foundation for studying the deeper molecular mechanisms of the Atg1 complex in pathogenic fungi.
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Affiliation(s)
- Ying-Ying Cai
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Lin Li
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xue-Ming Zhu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jian-Ping Lu
- College of Life Science, Zhejiang University, Hangzhou, China
| | - Xiao-Hong Liu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Fu-Cheng Lin
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, China
- *Correspondence: Fu-Cheng Lin,
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Cai YY, Wang JY, Wu XY, Liang S, Zhu XM, Li L, Lu JP, Liu XH, Lin FC. MoOpy2 is essential for fungal development, pathogenicity, and autophagy in Magnaporthe oryzae. Environ Microbiol 2022; 24:1653-1671. [PMID: 35229430 DOI: 10.1111/1462-2920.15949] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/07/2022] [Accepted: 02/20/2022] [Indexed: 11/27/2022]
Abstract
The development and pathogenicity of the fungus Magnaporthe oryzae, the causal agent of destructive rice blast disease, require it to perceive external environmental signals. Opy2, an overproduction-induced pheromone-resistant protein 2, is a crucial protein for sensing external signals in Saccharomyces cerevisiae. However, the biological functions of the homolog of Opy2 in M. oryzae are unclear. In this study, we identified that MoOPY2 is involved in fungal development, pathogenicity, and autophagy in M. oryzae. Deletion of MoOPY2 resulted in pleiotropic defects in hyphal growth, conidiation, germ tube extension, appressorium formation, appressorium turgor generation, and invasive growth, therefore leading to attenuated pathogenicity. Furthermore, MoOpy2 participates in the Osm1 MAPK pathway and the Mps1 MAPK pathway by interacting with the adaptor protein Mst50. The interaction sites of Mst50 and MoOpy2 colocalized with the autophagic marker protein MoAtg8 in the preautophagosomal structure sites (PAS). Notably, the ΔMoopy2 mutant caused cumulative MoAtg8 lipidation and rapid GFP-MoAtg8 degradation in response to nitrogen starvation, showing that MoOpy2 is involved in the negative regulation of autophagy activity. Taken together, our study revealed that MoOpy2 of M. oryzae plays an essential role in the orchestration of fungal development, appressorium penetration, autophagy and pathogenesis. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ying-Ying Cai
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Jing-Yi Wang
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xi-Yu Wu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Shuang Liang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Central Laboratory, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Xue-Ming Zhu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Lin Li
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Jian-Ping Lu
- College of Life Science, Zhejiang University, Hangzhou, 310058, China
| | - Xiao-Hong Liu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Fu-Cheng Lin
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China.,State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
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Chen X, Lu B, Li HX, Li XY, Wang YW, Castellanos FX, Cao LP, Chen NX, Chen W, Cheng YQ, Cui SX, Deng ZY, Fang YR, Gong QY, Guo WB, Hu ZJY, Kuang L, Li BJ, Li L, Li T, Lian T, Liao YF, Liu YS, Liu ZN, Lu JP, Luo QH, Meng HQ, Peng DH, Qiu J, Shen YD, Si TM, Tang YQ, Wang CY, Wang F, Wang HN, Wang K, Wang X, Wang Y, Wang ZH, Wu XP, Xie CM, Xie GR, Xie P, Xu XF, Yang H, Yang J, Yao SQ, Yu YQ, Yuan YG, Zhang KR, Zhang W, Zhang ZJ, Zhu JJ, Zuo XN, Zhao JP, Zang YF, Yan CG. The DIRECT consortium and the REST-meta-MDD project: towards neuroimaging biomarkers of major depressive disorder. Psychoradiology 2022; 2:32-42. [PMID: 38665141 PMCID: PMC10917197 DOI: 10.1093/psyrad/kkac005] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/06/2022] [Accepted: 05/06/2022] [Indexed: 02/05/2023]
Abstract
Despite a growing neuroimaging literature on the pathophysiology of major depressive disorder (MDD), reproducible findings are lacking, probably reflecting mostly small sample sizes and heterogeneity in analytic approaches. To address these issues, the Depression Imaging REsearch ConsorTium (DIRECT) was launched. The REST-meta-MDD project, pooling 2428 functional brain images processed with a standardized pipeline across all participating sites, has been the first effort from DIRECT. In this review, we present an overview of the motivations, rationale, and principal findings of the studies so far from the REST-meta-MDD project. Findings from the first round of analyses of the pooled repository have included alterations in functional connectivity within the default mode network, in whole-brain topological properties, in dynamic features, and in functional lateralization. These well-powered exploratory observations have also provided the basis for future longitudinal hypothesis-driven research. Following these fruitful explorations, DIRECT has proceeded to its second stage of data sharing that seeks to examine ethnicity in brain alterations in MDD by extending the exclusive Chinese original sample to other ethnic groups through international collaborations. A state-of-the-art, surface-based preprocessing pipeline has also been introduced to improve sensitivity. Functional images from patients with bipolar disorder and schizophrenia will be included to identify shared and unique abnormalities across diagnosis boundaries. In addition, large-scale longitudinal studies targeting brain network alterations following antidepressant treatment, aggregation of diffusion tensor images, and the development of functional magnetic resonance imaging-guided neuromodulation approaches are underway. Through these endeavours, we hope to accelerate the translation of functional neuroimaging findings to clinical use, such as evaluating longitudinal effects of antidepressant medications and developing individualized neuromodulation targets, while building an open repository for the scientific community.
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Affiliation(s)
- Xiao Chen
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bin Lu
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Hui-Xian Li
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xue-Ying Li
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing 101408, China
- Sino-Danish Center for Education and Research, Graduate University of Chinese Academy of Sciences, Beijing 101408, China
| | - Yu-Wei Wang
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Francisco Xavier Castellanos
- Department of Child and Adolescent Psychiatry, NYU Grossman School of Medicine, New York, NY 10016, USA
- Nathan Kline Institute for Psychiatric Research, Orangeburg, New York, NY 10962, USA
| | - Li-Ping Cao
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou 510370, China
| | | | - Wei Chen
- Department of Psychiatry, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310020, Zhejiang, China
| | - Yu-Qi Cheng
- Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Shi-Xian Cui
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing 101408, China
- Sino-Danish Center for Education and Research, Graduate University of Chinese Academy of Sciences, Beijing 101408, China
| | - Zhao-Yu Deng
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yi-Ru Fang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Qi-Yong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan 610044, China
- Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, Sichuan 610052, China
| | - Wen-Bin Guo
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Zheng-Jia-Yi Hu
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Li Kuang
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China
| | - Bao-Juan Li
- Xijing Hospital of Air Force Military Medical University, Xi'an, Shaanxi 710032, China
| | - Le Li
- Center for Cognitive Science of Language, Beijing Language and Culture University, Beijing 100083, China
| | - Tao Li
- Affiliated Mental Health Center & Hangzhou Seventh People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310063, China
- Mental Health Center and Psychiatric Laboratory, West China Hospital of Sichuan University, Chengdu, Sichuan 610044, China
| | - Tao Lian
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yi-Fan Liao
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yan-Song Liu
- Department of Clinical Psychology, Suzhou Psychiatric Hospital, The Affiliated Guangji Hospital of Soochow University, Suzhou, Jiangsu 215003, China
| | - Zhe-Ning Liu
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Jian-Ping Lu
- Shenzhen Kangning Hospital, Shenzhen, Guangzhou 518020, China
| | - Qing-Hua Luo
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China
| | - Hua-Qing Meng
- Department of Psychiatry, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China
| | - Dai-Hui Peng
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Jiang Qiu
- Faculty of Psychology, Southwest University, Chongqing 400715, China
| | - Yue-Di Shen
- Department of Diagnostics, Affiliated Hospital, Hangzhou Normal University Medical School, Hangzhou, Zhejiang 311121, China
| | - Tian-Mei Si
- National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital) & Key Laboratory of Mental Health, Ministry of Health (Peking University), Beijing 100191, China
| | - Yan-Qing Tang
- Department of Psychiatry, First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110122, China
| | - Chuan-Yue Wang
- Beijing Anding Hospital, Capital Medical University, Beijing 100120, China
| | - Fei Wang
- Department of Psychiatry, First Affiliated Hospital, China Medical University, Shenyang, Liaoning 110122, China
- Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing 210024, China
| | - Hua-Ning Wang
- Xijing Hospital of Air Force Military Medical University, Xi'an, Shaanxi 710032, China
| | - Kai Wang
- Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Xiang Wang
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Ying Wang
- The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 250024, China
| | - Zi-Han Wang
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiao-Ping Wu
- Xi'an Central Hospital, Xi'an, Shaanxi 710004, China
| | - Chun-Ming Xie
- Department of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, Jiangsu 210009, China
| | - Guang-Rong Xie
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Peng Xie
- Institute of Neuroscience, Chongqing Medical University, Chongqing 400016, China
- Chongqing Key Laboratory of Neurobiology, Chongqing 400000, China
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China
| | - Xiu-Feng Xu
- Department of Psychiatry, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Hong Yang
- Department of Radiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jian Yang
- Chongqing Key Laboratory of Neurobiology, Chongqing 400000, China
| | - Shu-Qiao Yao
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Yong-Qiang Yu
- The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, China
| | - Yong-Gui Yuan
- Department of Psychosomatics and Psychiatry, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu 210009, China
| | - Ke-Rang Zhang
- First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Wei Zhang
- West China Hospital of Sichuan University, Chengdu, Sichuan 610044, China
| | - Zhi-Jun Zhang
- Department of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, Jiangsu 210009, China
| | - Jun-Juan Zhu
- Department of Psychiatry, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xi-Nian Zuo
- Developmental Population Neuroscience Research Center, IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100091, China
- National Basic Science Data Center, Beijing 100038, China
| | - Jing-Ping Zhao
- Department of Psychiatry, and National Clinical Research Center for Mental Disorders, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Yu-Feng Zang
- Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang 310018, China
- Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, Zhejiang 310000, China
| | - Chao-Gan Yan
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
- International Big-Data Center for Depression Research, Chinese Academy of Sciences, Beijing 100101, China
- Magnetic Resonance Imaging Research Center, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing 101408, China
- Sino-Danish Center for Education and Research, Graduate University of Chinese Academy of Sciences, Beijing 101408, China
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9
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Wu MH, Huang LY, Sun LX, Qian H, Wei YY, Liang S, Zhu XM, Li L, Lu JP, Lin FC, Liu XH. A Putative D-Arabinono-1,4-lactone Oxidase, MoAlo1, Is Required for Fungal Growth, Conidiogenesis, and Pathogenicity in Magnaporthe oryzae. J Fungi (Basel) 2022; 8:jof8010072. [PMID: 35050012 PMCID: PMC8782026 DOI: 10.3390/jof8010072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/03/2022] [Accepted: 01/08/2022] [Indexed: 02/04/2023] Open
Abstract
Magnaporthe oryzae is the causal agent of rice blast outbreaks. L-ascorbic acid (ASC) is a famous antioxidant found in nature. However, while ASC is rare or absent in fungi, a five-carbon analog, D-erythroascorbic acid (EASC), seems to appear to be a substitute for ASC. Although the antioxidant function of ASC has been widely described, the specific properties and physiological functions of EASC remain poorly understood. In this study, we identified a D-arabinono-1,4-lactone oxidase (ALO) domain-containing protein, MoAlo1, and found that MoAlo1 was localized to mitochondria. Disruption of MoALO1 (ΔMoalo1) exhibited defects in vegetative growth as well as conidiogenesis. The ΔMoalo1 mutant was found to be more sensitive to exogenous H2O2. Additionally, the pathogenicity of conidia in the ΔMoalo1 null mutant was reduced deeply in rice, and defective penetration of appressorium-like structures (ALS) formed by the hyphal tips was also observed in the ΔMoalo1 null mutant. When exogenous EASC was added to the conidial suspension, the defective pathogenicity of the ΔMoalo1 mutant was restored. Collectively, MoAlo1 is essential for growth, conidiogenesis, and pathogenicity in M. oryzae.
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Affiliation(s)
- Ming-Hua Wu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.-H.W.); (L.-Y.H.); (L.-X.S.); (H.Q.); (Y.-Y.W.); (F.-C.L.)
| | - Lu-Yao Huang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.-H.W.); (L.-Y.H.); (L.-X.S.); (H.Q.); (Y.-Y.W.); (F.-C.L.)
- Biocenter, Institute for Plant Sciences, University of Cologne, 50674 Cologne, Germany
| | - Li-Xiao Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.-H.W.); (L.-Y.H.); (L.-X.S.); (H.Q.); (Y.-Y.W.); (F.-C.L.)
| | - Hui Qian
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.-H.W.); (L.-Y.H.); (L.-X.S.); (H.Q.); (Y.-Y.W.); (F.-C.L.)
| | - Yun-Yun Wei
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.-H.W.); (L.-Y.H.); (L.-X.S.); (H.Q.); (Y.-Y.W.); (F.-C.L.)
| | - Shuang Liang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Central Laboratory, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China;
| | - Xue-Ming Zhu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (X.-M.Z.); (L.L.)
| | - Lin Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (X.-M.Z.); (L.L.)
| | - Jian-Ping Lu
- College of Life Science, Zhejiang University, Hangzhou 310058, China;
| | - Fu-Cheng Lin
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.-H.W.); (L.-Y.H.); (L.-X.S.); (H.Q.); (Y.-Y.W.); (F.-C.L.)
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (X.-M.Z.); (L.L.)
| | - Xiao-Hong Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China; (M.-H.W.); (L.-Y.H.); (L.-X.S.); (H.Q.); (Y.-Y.W.); (F.-C.L.)
- Correspondence:
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10
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Wang B, Lu JP, Cai J. Suboptimal blood pressure control and associated risk for cardiovascular mortality among stroke survivors in China. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2335] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Elevated blood pressure (BP) is associated with substantial morbidity and mortality in stroke survivors. China has approximately 7.5 million stroke survivors, and accounts for one third of stroke mortality worldwide, but little is known about the prevalence and management of elevated BP as well as its effect on cardiovascular death at the national level.
Purpose
We aim to describe the prevalence and treatment of elevated BP and assess the cardiovascular mortality attributable to elevated BP among stroke survivors in China.
Methods
Based on 3 million participants aged 35–75 years from all 31 provinces in mainland China recruited from September 2014 through August 2019, we assessed the prevalence and treatment of elevated BP (systolic BP ≥140mmHg or diastolic BP ≥90mmHg) among those with self-reported stroke. Cardiovascular death was recorded before December 31st 2019. The age- and sex- specific population attributable fractions of cardiovascular death from elevated BP were estimated based on hazard ratios derived by Cox regression analysis.
Results
Among 91,628 stroke survivors, the mean (SD) age was 62 (8) years, 49% were male sex. The median (IQR) stroke duration was 4 (2,7) years. 61.3% of the individuals had elevated BP, and the prevalence increased with age (from 47.6% at 35–44 years of age to 64.7% at 65–75 years of age) and was slightly higher in rural area (63.2%) than urban area (58.8%). 32.7% of the overall population were treated, and 23.4% of those with elevated BP were treated. Among stroke survivors, elevated BP accounted for 26% of cardiovascular death at 35–75 years of age, and about one third at 35–54 years of age. The age- and sex- specific results were shown in the Table.
Conclusions
In this nationwide cohort of stroke survivors from China, over 60% had elevated BP, and about one third were treated. Elevated BP was associated with particularly substantial cardiovascular mortality for young and middle-aged stroke survivors. National strategies targeting elevated BP are required to improve the prognosis of stroke survivors in China.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): National Key Research and Development Program from the Ministry of Science and Technology of China Age- and sex-specific HRs and PAFs
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Affiliation(s)
- B Wang
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - J P Lu
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - J Cai
- Fuwai Hospital, CAMS and PUMC, Beijing, China
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11
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Bi LEI, Yi JY, Wu CQ, Lu JP, Zhang HB, Yang YANG, Li XI, Zheng XIN. Atherosclerotic cardiovascular risk and simulation of lipid-lowering therapy in China. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2567] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Lipid-lowering therapy is a key strategy to reduce atherosclerotic cardiovascular disease (ASCVD) risk. However, little is known about the burden of lipid-lowering therapy in China.
Purpose
We aim to simulate the proportion of individuals in need of different lipid-lowering therapy regimens to reach diverse low-density lipoprotein cholesterol (LDL-C) goals based on the ASCVD risk stratification.
Methods
We used the data from China PEACE Million Persons Project, a national screening project covering 31 provinces in China. The ASCVD risk stratifications and LDL-C goals were based on the 2016 Chinese Guideline for the Management of Dyslipidemia in Adults. Stepwise lipid-lowering therapy (atorvastatin 20 mg, add-on ezetimibe and add-on evolocumab) was simulated by a Monte Carlo model based on individual's LDL-C level.
Results
We included 2,876,272 participants (89.7% of the screened) who were not receiving lipid-lowering therapy (mean age 55.8±9.9 years; 60.5% women). The proportion of participants at low, moderate, high and very high ASCVD risk were 57.9%, 17.5%, 22.3% and 2.3%, respectively. In individuals at low or moderate risk, 10.5% did not reach the goal of LDL-C<3.4mmol/L; after statin simulation, 99.8% met the goal. In high-risk patients, 49.0% did not reach LDL-C<2.6mmol/L; after statin monotherapy (82.7%), add-on ezetimibe (10.6%) and add-on evolocumab (6.7%), 99.7% met the goal. In very-high-risk patients, 72.2% did not reach LDL-C<1.8mmol/L; while 99.1% met the goal after all patients received the simulation: statin monotherapy (76.5%), add-on ezetimibe (13.0%) and add-on evolocumab (10.5%). In a total of 609,489 participants (21.2% of the overall participants) needing lipid-lowering therapy, 88.5% required statin monotherapy and 11.5% additional non-statin therapy (Figure).
Conclusions
Moderate-intensity statin therapy is pivotal in the lipid-lowering therapy in China; nearly 10% in need of lipid-lowering therapy required additional non-statin therapy.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- L E I Bi
- Fuwai Hospital, CAMS and PUMC, National Clinical Research Center for Cardiovascular Diseases,Fuwai Hospital, Beijing, China
| | - J Y Yi
- Fuwai Hospital, CAMS and PUMC, National Clinical Research Center for Cardiovascular Diseases,Fuwai Hospital, Beijing, China
| | - C Q Wu
- Fuwai Hospital, CAMS and PUMC, National Clinical Research Center for Cardiovascular Diseases,Fuwai Hospital, Beijing, China
| | - J P Lu
- Fuwai Hospital, CAMS and PUMC, National Clinical Research Center for Cardiovascular Diseases,Fuwai Hospital, Beijing, China
| | - H B Zhang
- Fuwai Hospital, CAMS and PUMC, National Clinical Research Center for Cardiovascular Diseases,Fuwai Hospital, Beijing, China
| | - Y A N G Yang
- Fuwai Hospital, CAMS and PUMC, National Clinical Research Center for Cardiovascular Diseases,Fuwai Hospital, Beijing, China
| | - X I Li
- Fuwai Hospital, CAMS and PUMC, National Clinical Research Center for Cardiovascular Diseases,Fuwai Hospital, Beijing, China
| | - X I N Zheng
- Fuwai Hospital, CAMS and PUMC, National Clinical Research Center for Cardiovascular Diseases,Fuwai Hospital, Beijing, China
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12
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Sun LX, Qian H, Liu MY, Wu MH, Wei YY, Zhu XM, Lu JP, Lin FC, Liu XH. Endosomal sorting complexes required for transport-0 (ESCRT-0) are essential for fungal development, pathogenicity, autophagy and ER-phagy in Magnaporthe oryzae. Environ Microbiol 2021; 24:1076-1092. [PMID: 34472190 DOI: 10.1111/1462-2920.15753] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/28/2021] [Accepted: 08/29/2021] [Indexed: 12/23/2022]
Abstract
Magnaporthe oryzae is an important plant pathogen that causes rice blast. Hse1 and Vps27 are components of ESCRT-0 involved in the multivesicular body (MVB) sorting pathway and biogenesis. To date, the biological functions of ESCRT-0 in M. oryzae have not been determined. In this study, we identified and characterized Hse1 and Vps27 in M. oryzae. Disruption of MoHse1 and MoVps27 caused pleiotropic defects in growth, conidiation, sexual development and pathogenicity, thereby resulting in loss of virulence in rice and barley leaves. Disruption of MoHse1 and MoVps27 triggered increased lipidation of MoAtg8 and degradation of GFP-MoAtg8, indicating that ESCRT-0 is involved in the regulation of autophagy. ESCRT-0 was determined to interact with coat protein complex II (COPII), a regulator functioning in homeostasis of the endoplasmic reticulum (ER homeostasis), and disruption of MoHse1 and MoVps27 also blocked activation of the unfolded protein response (UPR) and autophagy of the endoplasmic reticulum (ER-phagy). Overall, our results indicate that ESCRT-0 plays critical roles in regulating fungal development, virulence, autophagy and ER-phagy in M. oryzae.
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Affiliation(s)
- Li-Xiao Sun
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Hui Qian
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Meng-Yu Liu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Ming-Hua Wu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Yun-Yun Wei
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xue-Ming Zhu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Fu-Cheng Lin
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China.,State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Xiao-Hong Liu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
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Cai YJ, Ke LF, Zhang WW, Lu JP, Chen YP. Recurrent KRAS, KIT and SF3B1 mutations in melanoma of the female genital tract. BMC Cancer 2021; 21:677. [PMID: 34102999 PMCID: PMC8185938 DOI: 10.1186/s12885-021-08427-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 02/03/2021] [Accepted: 05/25/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Malignant melanoma of the female genital tract is relatively uncommon and accounts for 3-7% of all melanoma localizations. This study aimed to identify driver genes in melanoma of the female genital tract with the purpose of enhancing understanding of disease pathogenesis and identifying potential new therapeutic targets to develop effective therapies. METHODS KIT (CD117) and BRAF expression were detected immunohistochemically. Polymerase Chain Reaction (PCR) and Sanger sequencing techniques were performed to identify the mutational status of BRAF, NRAS, KRAS, NF1, KIT, PDGFRA and SF3B1 on 19 melanomas of the female genital tract, paired with 25 cutaneous melanomas, 18 acral melanomas and 11 melanomas of nasal cavity. RESULTS Somatic variant analysis identified KRAS (6/19; 32%) as the most commonly mutated gene, followed by KIT (4/19; 21%), SF3B1 (3/19; 16%) and NRAS (1/19; 5%). None of the cases were found to harbor BRAF, NF1 and PDGFRA mutations in melanomas of the female genital tract. However, none of the cases were found to harbor SF3B1 and KIT mutations in cutaneous melanomas, acral melanomas and melanomas of nasal cavity. Recurrent KIT mutations, as well as mutations in the less frequently mutated genes NRAS and SF3B1, were exclusively detected in vulvovaginal melanomas, but not in tumors arising in the cervix. However, recurrent KRAS mutations were detected in similar frequencies in tumors of the vulva, vagina, and cervix. Additionally, recurrent KRAS and KIT mutations occurred predominantly in polygonal and epithelioid cell types of melanoma in the female genital tract. Immunohistochemistry revealed moderate or strong cytoplasmic CD117 expression in 6 of the 19 cases (31.6%). CONCLUSIONS We observed that gynecologic melanoma harbored distinct mutation rates in the KIT, BRAF, SF3B1, KRAS, and NRAS genes. Our findings support the notion that gynecologic melanoma is a distinct entity from non-gynecologic melanoma, and these findings offer insights into future therapeutic options for these patients.
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Affiliation(s)
- Yuan-Jun Cai
- Department of Obstetrics and Gynecology, Fujian Maternity and Child Health Hospital, Affiliated Hospital of Fujian Medical University, Fuzhou, 350001, China
| | - Long-Feng Ke
- Laboratory of Molecular Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, 350014, China
| | - Wen-Wen Zhang
- Department of Pathology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian Province, China
| | - Jian-Ping Lu
- Department of Pathology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian Province, China
| | - Yan-Ping Chen
- Department of Pathology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian Province, China.
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Huang RF, He C, Zhu WF, Shi Y, Chen XY, Lu JP, Chen G. [Clinicopathological and molecular features of SMARCA4-deficient carcinoma of the intestinal tract]. Zhonghua Bing Li Xue Za Zhi 2021; 50:382-384. [PMID: 33831999 DOI: 10.3760/cma.j.cn112151-20201118-00849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- R F Huang
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou 350014, China
| | - C He
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou 350014, China
| | - W F Zhu
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou 350014, China
| | - Y Shi
- Department of Molecular Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou 350014, China
| | - X Y Chen
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou 350014, China
| | - J P Lu
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou 350014, China
| | - G Chen
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou 350014, China
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15
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Song T, Zhang QW, Duan SF, Bian Y, Hao Q, Xing PY, Wang TG, Chen LG, Ma C, Lu JP. MRI-based radiomics approach for differentiation of hypovascular non-functional pancreatic neuroendocrine tumors and solid pseudopapillary neoplasms of the pancreas. BMC Med Imaging 2021; 21:36. [PMID: 33622277 PMCID: PMC7901077 DOI: 10.1186/s12880-021-00563-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/02/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND This study aims to investigate the value of radiomics parameters derived from contrast enhanced (CE) MRI in differentiation of hypovascular non-functional pancreatic neuroendocrine tumors (hypo-NF-pNETs) and solid pseudopapillary neoplasms of the pancreas (SPNs). METHODS Fifty-seven SPN patients and twenty-two hypo-NF-pNET patients were enrolled. Radiomics features were extracted from T1WI, arterial, portal and delayed phase of MR images. The enrolled patients were divided into training cohort and validation cohort with the 7:3 ratio. We built four radiomics signatures for the four phases respectively and ROC analysis were used to select the best phase to discriminate SPNs from hypo-NF-pNETs. The chosen radiomics signature and clinical independent risk factors were integrated to construct a clinic-radiomics nomogram. RESULTS SPNs occurred in younger age groups than hypo-NF-pNETs (P < 0.0001) and showed a clear preponderance in females (P = 0.0185). Age was a significant independent factor for the differentiation of SPNs and hypo-NF-pNETs revealed by logistic regression analysis. With AUC values above 0.900 in both training and validation cohort (0.978 [95% CI, 0.942-1.000] in the training set, 0.907 [95% CI, 0.765-1.000] in the validation set), the radiomics signature of the arterial phase was picked to build a clinic-radiomics nomogram. The nomogram, composed by age and radiomics signature of the arterial phase, showed sufficient performance for discriminating SPNs and hypo-NF-pNETs with AUC values of 0.965 (95% CI, 0.923-1.000) and 0.920 (95% CI, 0.796-1.000) in the training and validation cohorts, respectively. Delong Test did not demonstrate statistical significance between the AUC of the clinic-radiomics nomogram and radiomics signature of arterial phase. CONCLUSION CE-MRI-based radiomics approach demonstrated great potential in the differentiation of hypo-NF-pNETs and SPNs.
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Affiliation(s)
- Tao Song
- Department of Radiology, Changhai Hospital, The Navy Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, China
| | - Qian-Wen Zhang
- Department of Radiology, Changhai Hospital, The Navy Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, China
| | - Shao-Feng Duan
- GE Healthcare China, Pudong New Town, No.1 Huatuo Road, Shanghai, 210000, China
| | - Yun Bian
- Department of Radiology, Changhai Hospital, The Navy Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, China
| | - Qiang Hao
- Department of Radiology, Changhai Hospital, The Navy Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, China
| | - Peng-Yi Xing
- Department of Radiology, Changhai Hospital, The Navy Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, China
| | - Tie-Gong Wang
- Department of Radiology, Changhai Hospital, The Navy Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, China
| | - Lu-Guang Chen
- Department of Radiology, Changhai Hospital, The Navy Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, China
| | - Chao Ma
- Department of Radiology, Changhai Hospital, The Navy Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, China
| | - Jian-Ping Lu
- Department of Radiology, Changhai Hospital, The Navy Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, China.
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Shen Y, Wang L, Huang C, Guo J, De Leon SA, Lu J, Luo X, Zhang XY. Sex differences in prevalence, risk factors and clinical correlates of internet addiction among chinese college students. J Affect Disord 2021; 279:680-686. [PMID: 33190119 DOI: 10.1016/j.jad.2020.10.054] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/09/2020] [Accepted: 10/25/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Internet addiction(IA) is now very common. However, few studies have explored the sex differences in risk factors for IA, especially among Chinese college students. This study aimed to investigate the sex differences in prevalence, risk factors and clinical correlates of IA among Chinese college students. METHODS A total of 8098 college students from Hunan province were recruited using a cross-sectional design and a convenience sampling method. Each student filled out the survey online anonymously, which collected their information on their socio-demographics, internet addiction(Revised Chinese internet addiction scale;CIAS-R), ADHD(Wender Utah Rating Scale and World Health Organization (WHO) Adult ADHD Self-Report Scale v 1.1 Symptom Checklist), depression(Self-reporting Depression Scale;SDS), insomnia(Athens Insomnia Scale;AIS), anxiety(Self-Rating Anxiety Scale;SAS) and suicidal behaviors through WeChat. RESULTS Overall, the prevalence of IA in males and females was 7.21%(259/3592) and 8.17%(368/4506), respectively. Multivariate logistic regression analysis revealed that suicidal ideation[odds ratio (OR),1.557;95% confidence interval (CI),1.083-2.240], suicide attempts(OR,2.081;95%CI:1.271-3.409), ADHD(OR,6.487;95%CI,4.697-8.959) and insomnia(OR,2.596;95%CI,1.910-3.529) were independent risk factors for male IA after controlling for confounding variables. Nationality(OR,1.507;95%CI,1.058-2.145), suicidal ideation(OR,2.012;95%CI,1.532-2.641), depression(OR,1.771;95%CI:1.071-2.930), ADHD(OR,4.497; 95%CI,3.285-6.158) and insomnia(OR,2.356;95%CI,1.813-3.061) were independent risk factors for female IA. LIMITATION No causal relationships could be drawn due to the cross-sectional design. CONCLUSIONS This study shows IA is common among both sexes. IA is significantly associated with ADHD, insomnia and suicidal behaviors in both male and female students, indicating the importance of screening IA and addressing ADHD, insomnia and suicidal behaviors to improve the mental health of college students and better prevent suicide in both sexes.
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Affiliation(s)
- Yanmei Shen
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Mental Health Institute of Central South University, China National Clinical Research Center on Mental Disorders (Xiangya), China National Technology Institute on Mental Disorders, Hunan Technology Institute of Psychiatry, Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan 410011, China
| | - Lu Wang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Mental Health Institute of Central South University, China National Clinical Research Center on Mental Disorders (Xiangya), China National Technology Institute on Mental Disorders, Hunan Technology Institute of Psychiatry, Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan 410011, China
| | - Chunxiang Huang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Mental Health Institute of Central South University, China National Clinical Research Center on Mental Disorders (Xiangya), China National Technology Institute on Mental Disorders, Hunan Technology Institute of Psychiatry, Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan 410011, China
| | - Jimin Guo
- Department of Internal Medicine, Molecular Medicine, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - Sara Arenas De Leon
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico 87131, USA
| | - JianPing Lu
- Department of Child and Adolescent Psychiatry of Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen, Guangdong, China
| | - Xuerong Luo
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China; Mental Health Institute of Central South University, China National Clinical Research Center on Mental Disorders (Xiangya), China National Technology Institute on Mental Disorders, Hunan Technology Institute of Psychiatry, Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, Hunan 410011, China.
| | - Xiang Yang Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences (CAS), 16 Lincui Road, Chaoyang District, Beijing 100101, China.
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Zou J, Wang WQ, Dai CF, Shi HB, Liu AG, Chen LG, Li YH, Pan C, Hu Y, Lu JP, Wu H. [Technology and clinical application of detecting endolymphatic hydrops in Meniere's disease using gadolinium-enhanced MRI]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:869-877. [PMID: 32911894 DOI: 10.3760/cma.j.cn115330-20200420-00312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J Zou
- Department of Otolaryngology Head and Neck Surgery, Center for Otolaryngology Head and Neck Surgery of Chinese PLA, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - W Q Wang
- Department of Otology and Skull Base Surgery, Hearing Research Key Lab of Health Ministry of China, Eye, Ear, Nose and Throat Hospital, Fudan University, Shanghai 200031, China
| | - C F Dai
- Department of Otology and Skull Base Surgery, Hearing Research Key Lab of Health Ministry of China, Eye, Ear, Nose and Throat Hospital, Fudan University, Shanghai 200031, China
| | - H B Shi
- Department of Otorhinolaryngology Head and Neck Surgery, the Sixth People's Hospital, Institute of Otorhinolaryngology, Shanghai Jiao Tong University, Oriental Institute of Otorhinolaryngology of Shanghai, Shanghai 200233, China
| | - A G Liu
- Department of Otolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - L G Chen
- Department of Medical Imaging, National Key Discipline, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Y H Li
- Department of Radiology, the Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200233, China
| | - C Pan
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Hu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J P Lu
- Department of Medical Imaging, National Key Discipline, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - H Wu
- Department of Otorhinolaryngology Head and Neck Surgery, the Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai 200011, China
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Wei YY, Liang S, Zhang YR, Lu JP, Lin FC, Liu XH. MoSec61β, the beta subunit of Sec61, is involved in fungal development and pathogenicity, plant immunity, and ER-phagy in Magnaporthe oryzae. Virulence 2020; 11:1685-1700. [PMID: 33200669 PMCID: PMC7714445 DOI: 10.1080/21505594.2020.1848983] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The process of protein translocation into the endoplasmic reticulum (ER) is the initial and decisive step in the biosynthesis of all secretory proteins and many soluble organelle proteins. In this process, the Sec61 complex is the protein-conducting channel for transport. In this study, we identified and characterized the β subunit of the Sec61 complex in Magnaporthe oryzae (MoSec61β). Compared with the wild-type strain Guy11, the ΔMosec61β mutant exhibited highly branched mycelial morphology, reduced conidiation, high sensitivity to cell wall integrity stress, severely reduced virulence to rice and barley, and restricted biotrophic invasion. The turgor pressure of ΔMosec61β was notably reduced, which affected the function of appressoria. Moreover, ΔMosec61β was also sensitive to oxidative stress and exhibited a reduced ability to overcome plant immunity. Further examination demonstrated that MoSec61β affected the normal secretion of the apoplastic effectors Bas4 and Slp1. In addition, ΔMosec61β upregulated the level of ER-phagy. In conclusion, our results demonstrate the importance of the roles played by MoSec61β in the fungal development and pathogenesis of M. oryzae.
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Affiliation(s)
- Yun-Yun Wei
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University , Hangzhou, China
| | - Shuang Liang
- Zhejiang Provincial Laboratory of Life Sciences and Biomedicine, Key Laboratory of Structural Biology of Zhejiang Province, School of Life Sciences, Westlake University , Hangzhou, China.,Institute of Basic Medical Sciences, Westlake Institute for Advanced Study , Hangzhou, China
| | - Yun-Ran Zhang
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University , Hangzhou, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University , Hangzhou, China
| | - Fu-Cheng Lin
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University , Hangzhou, China.,State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences , Hangzhou, China
| | - Xiao-Hong Liu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University , Hangzhou, China
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Lu JP, Che CH, Huang HP. [Comparison of the accuracy of predicting prognosis of brain function in patients after cardiopulmonary cerebral resuscitation with two kinds of electroencephalogram techniques combined with neuron-specific enolase]. Zhonghua Yi Xue Za Zhi 2020; 100:1629-1633. [PMID: 32486597 DOI: 10.3760/cma.j.cn112137-20190911-02011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the accuracy of electroencephalography (EEG) grading or amplitude-integrated electroencephalography (aEEG) grading combined with NSE in predicting brain function prognosis after cardiopulmonary cerebral resuscitation (CPR) in adults. Methods: The patients who were admitted to Fujian Medical University Union Hospital after CPR from January 2015 to June 2019 were enrolled. Demographic data, Glasgow coma scale (GCS), blood neuron specific enolase (NSE), EEG grading and aEEG grading were collected. The main clinical outcome was the prognosis of brain function (Glasgow-Pittsburgh cerebral performance category, CPC) in patients at 3 months after CPR. Accordingly, the patients were divided into two groups: favorable prognosis group and poor prognosis group, and relevant parameters were compared between the two groups. The predictive ability of EEG grading or aEEG grading combined with NSE for brain function prognosis was evaluated by receiver operating characteristic (ROC) curve. Results: A total of 57 patients were enrolled, with 34 males and 23 females. The average age was (65±19) years old. In terms of Young EEG scales, there was 16 grade 1 cases (28.1%), 24 grade 2-5 cases (42.1%) and 17 grade 6 cases (29.8%), respectively. As for aEEG grading, there was 11 grade Ⅰ cases (19.3%), 25 grade Ⅱ cases (43.9%) and 21 grade Ⅲ cases (36.8%), respectively. There was no significant difference of age, sex, length of stay between the two groups (all P>0.05). However, there was significant difference of EEG grading scale, aEEG grading, GCS grading and NSE between the two groups (all P<0.05). The area under curve (AUC) of NSE, EEG grading and aEEG grading for predicting brain function prognosis was 0.81, 0.82 and 0.85, respectively (all P<0.01). In aEEG grading combined with NSE group, the AUC of was 0.92, and the optimal cut-off point was 4.5, with a sensitivity of 95.8% and a specificity of 79.0%. In EEG grading combined with NSE group, the AUC was 0.90, and the optimal cut-off point was 3.6, with a sensitivity of 92.1% and a specificity of 77.0%. Conclusions: aEEG grading combined with NSE is more accurate in predicting prognosis in patients with cardiopulmonary cerebral resuscitation when compared to EEG grading. Considering its feasibility, aEEG grading combined with NSE is more suitable for clinical application.
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Affiliation(s)
- J P Lu
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - C H Che
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - H P Huang
- Department of Neurology, Fujian Medical University Union Hospital, Fuzhou 350001, China
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Shi HB, Chen N, Zhu XM, Su ZZ, Wang JY, Lu JP, Liu XH, Lin FC. The casein kinase MoYck1 regulates development, autophagy, and virulence in the rice blast fungus. Virulence 2020; 10:719-733. [PMID: 31392921 PMCID: PMC8647852 DOI: 10.1080/21505594.2019.1649588] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Casein kinases are serine/threonine protein kinases that are evolutionarily conserved in yeast and humans and are involved in a range of important cellular processes. However, the biological functions of casein kinases in the fungus Magnaporthe oryzae, the causal agent of destructive rice blast disease, are not characterized. Here, two casein kinases, MoYCK1 and MoHRR25, were identified and targeted for replacement, but only MoYCK1 was further characterized due to the possible nonviability of the MoHRR25 deletion mutant. Disruption of MoYCK1 caused pleiotropic defects in growth, conidiation, conidial germination, and appressorium formation and penetration, therefore resulting in reduced virulence in rice seedlings and barley leaves. Notably, the MoYCK1 deletion triggered quick lipidation of MoAtg8 and degradation of the autophagic marker protein GFP-MoAtg8 under nitrogen starvation conditions, in contrast to the wild type, indicating that autophagy activity was negatively regulated by MoYck1. Furthermore, we found that HOPS (homotypic fusion and vacuolar protein sorting) subunit MoVps41, a putative substrate of MoYck1, was co-located with MoAtg8 and positively required for the degradation of MoAtg8-PE and GFP-MoAtg8. In addition, MoYCK1 is also involved in the response to ionic hyperosmotic and heavy metal cation stresses. Taken together, our results revealed crucial roles of the casein kinase MoYck1 in regulating development, autophagy and virulence in M. oryzae.
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Affiliation(s)
- Huan-Bin Shi
- a State Key Laboratory of Rice Biology, Biotechnology Institute, Zhejiang University , Hangzhou , China.,b State Key Laboratory of Rice Biology, China National Rice Research Institute , Hangzhou , China
| | - Nan Chen
- a State Key Laboratory of Rice Biology, Biotechnology Institute, Zhejiang University , Hangzhou , China
| | - Xue-Ming Zhu
- a State Key Laboratory of Rice Biology, Biotechnology Institute, Zhejiang University , Hangzhou , China
| | - Zhen-Zhu Su
- a State Key Laboratory of Rice Biology, Biotechnology Institute, Zhejiang University , Hangzhou , China
| | - Jiao-Yu Wang
- c State Key Laboratory for Quality and Safety of Agro-products, Institute of Plant Protection Microbiology, Zhejiang Academy of Agricultural Science , Hangzhou , China
| | - Jian-Ping Lu
- d College of Life Sciences, Zhejiang University , Hangzhou , China
| | - Xiao-Hong Liu
- a State Key Laboratory of Rice Biology, Biotechnology Institute, Zhejiang University , Hangzhou , China
| | - Fu-Cheng Lin
- a State Key Laboratory of Rice Biology, Biotechnology Institute, Zhejiang University , Hangzhou , China
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Liu JB, Xue ZP, Lin L, Xu JC, Sun YM, Lu JP. [Moderated mediation analysis for symptoms of attention deficit/hyperactivity disorder with the symptoms of anxiety in children]. Zhongguo Dang Dai Er Ke Za Zhi 2020; 22:768-773. [PMID: 32669176 PMCID: PMC7389617 DOI: 10.7499/j.issn.1008-8830.2002121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 05/09/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To study the moderated mediation for attention deficit/hyperactivity disorder (ADHD) with the symptoms of anxiety in children. METHODS A total of 12 271 students were included with an average age of 8.9±1.9 years, including 6 743 male students and 5 508 female students, and 20 students with missing data on gender. Child psychological trauma questionnaires (parents version) and Conners questionnaires (parent version) were completed by the parents of primary school students. The data was studied by univariate analysis, multivariate analysis and moderated mediation analysis. RESULTS The results of the univariate analysis showed that in all subjects, boys, and girls, the scores of hyperactivity index and childhood trauma were positively correlated with the score of anxiety (P<0.01), and ADHD and childhood trauma positively predicted anxiety disorder (P<0.001). The results of the multivariate analysis showed that in all subjects, boys, and girls, the scores of hyperactivity index (ADHD symptoms) and childhood trauma positively predicted the score of anxiety (P<0.001), and both ADHD and childhood trauma positively predicted anxiety disorder (P<0.001). The results of the moderated mediation analysis showed that childhood trauma was a mediating factor for the relationship between hyperactivity index and anxiety index in boys and girls (P<0.05), and sex moderated the relationship between hyperactivity index and anxiety index (P<0.001). CONCLUSIONS ADHD symptoms/ADHD are closely associated with anxiety symptoms/anxiety disorder. Childhood trauma exerts a mediating effect on the relationship between ADHD symptoms and anxiety symptoms, and sex moderates the relationship between ADHD symptoms and anxiety symptoms.
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Affiliation(s)
- Jian-Bo Liu
- Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518020, China.
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He BM, Shi ZK, Li HS, Lin HZ, Yang QS, Lu JP, Sun YH, Wang HF. A Novel Prediction Tool Based on Multiparametric Magnetic Resonance Imaging to Determine the Biopsy Strategy for Clinically Significant Prostate Cancer in Patients with PSA Levels Less than 50 ng/ml. Ann Surg Oncol 2019; 27:1284-1295. [PMID: 31848822 DOI: 10.1245/s10434-019-08111-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Indexed: 02/03/2023]
Abstract
PURPOSE To develop and internally validate nomograms to help choose the optimal biopsy strategy among no biopsy, targeted biopsy (TB) only, or TB plus systematic biopsy (SB). PATIENTS AND METHODS This retrospective study included a total of 385 patients who underwent magnetic resonance imaging (MRI)-guided TB and/or SB at our institute after undergoing multiparametric MRI (mpMRI) between 2015 and 2018. We developed models to predict clinically significant prostate cancer (csPCa) based on suspicious lesions from a TB result and based on the whole prostate gland from the results of TB plus SB or SB only. Nomograms were generated using logistic regression and evaluated using receiver-operating characteristic (ROC) curve analysis, calibration curves and decision analysis. The results were validated using ROC curve and calibration on 177 patients from 2018 to 2019 at the same institute. RESULTS In the multivariate analyses, prostate-specific antigen level, prostate volume, and the Prostate Imaging Reporting and Data System score were predictors of csPCa in both nomograms. Age was also included in the model for suspicious lesions, while obesity was included in the model for the whole gland. The area under the curve (AUC) in the ROC analyses of the prediction models was 0.755 for suspicious lesions and 0.887 for the whole gland. Both models performed well in the calibration and decision analyses. In the validation cohort, the ROC curve described the AUCs of 0.723 and 0.917 for the nomogram of suspicious lesions and nomogram of the whole gland, respectively. Also, the calibration curve detected low error rates for both models. CONCLUSION Nomograms with excellent discriminative ability were developed and validated. These nomograms can be used to select the optimal biopsy strategy for individual patients in the future.
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Affiliation(s)
- Bi-Ming He
- Department of Urology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Urology, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhen-Kai Shi
- Department of Urology, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Hu-Sheng Li
- Department of Urology, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Heng-Zhi Lin
- Department of Urology, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Qing-Song Yang
- Department of Radiology, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Jian-Ping Lu
- Department of Radiology, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Ying-Hao Sun
- Department of Urology, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.
| | - Hai-Feng Wang
- Department of Urology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China. .,Department of Urology, Shanghai Changhai Hospital, Second Military Medical University, Shanghai, China.
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23
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Li L, Zhang LP, Han YC, Wang WY, Jin Y, Xia QX, Liu YP, Xiang J, Liu C, Lu SS, Wu W, Chen Z, Pang J, Xi YF, Zheng YS, Gu DM, Fan J, Chang XN, Wang WW, Wang L, Zhang ZH, Yan XC, Sun Y, Li J, Hou F, Zhang JY, Huang RF, Lu JP, Wang Z, Hu YB, Yuan HT, Dong YJ, Wang L, Ke ZY, Geng JS, Guo L, Zhang J, Ying JM. [Consistency of ALK Ventana-D5F3 immunohistochemistry interpretation in lung adenocarcinoma among Chinese histopathologists]. Zhonghua Bing Li Xue Za Zhi 2019; 48:921-927. [PMID: 31818064 DOI: 10.3760/cma.j.issn.0529-5807.2019.12.002] [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: 02/05/2023]
Abstract
Objective: To understand the consistency of ALK Ventana-D5F3 immunohistochemistry (IHC) interpretation in Chinese lung adenocarcinoma among histopathologists from different hospitals, and to recommend solution for the problems found during the interpretation of ALK IHC in real world, with the aim of the precise selection of patients who can benefit from ALK targeted therapy. Methods: This was a multicenter and retrospective study. A total of 109 lung adenocarcinoma cases with ALK Ventana-D5F3 IHC staining were collected from 31 lung cancer centers in RATICAL research group from January to June in 2018. All cases were scanned into digital imaging with Ventana iSCANcoreo Digital Slide Scanning System and scored by 31 histopathologists from different centers according to ALK binary (positive or negative) interpretation based on its manufacturer's protocol. The cases with high inconsistency rate were further analyzed using FISH/RT-PCR/NGS. Results: There were 49 ALK positive cases and 60 ALK negative cases, confirmed by re-evaluation by the specialist panel. Two cases (No. 2302 and No.2701) scored as positive by local hospitals were rescored as negative, and were confirmed to be negative by RT-PCR/FISH/NGS. The false interpretation rate of these two cases was 58.1% (18/31) and 48.4% (15/31), respectively. Six out of 31 (19.4%) pathologists got 100% accuracy. The minimum consistency between every two pathologists was 75.8%.At least one pathologist gave negative judgement (false negative) or positive judgement (false positive) in the 49 positive or 60 negative cases, accounted for 26.5% (13/49), 41.7% (25/60), respectively, with at least one uncertainty interpretation accounted for 31.2% (34/109). Conclusion: There are certain heterogeneities and misclassifications in the real world interpretation of ALK-D5F3 IHC test, which need to be guided by the oncoming expert consensus based on the real world data.
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Affiliation(s)
- L Li
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L P Zhang
- Department of Pathology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China
| | - Y C Han
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai 200030, China
| | - W Y Wang
- Department of Pathology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Y Jin
- Department of Pathology, Fudan University Cancer Center; Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Q X Xia
- Department of Molecular Pathology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - Y P Liu
- Department of Pathology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - J Xiang
- Department of Pathology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - C Liu
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - S S Lu
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - W Wu
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z Chen
- Department of Pathology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China
| | - J Pang
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai 200030, China
| | - Y F Xi
- Department of Pathology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Y S Zheng
- Department of Pathology, Fudan University Cancer Center; Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - D M Gu
- Department of Pathology, Fudan University Cancer Center; Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - J Fan
- Department of Molecular Pathology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - X N Chang
- Department of Molecular Pathology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - W W Wang
- Department of Pathology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - L Wang
- Department of Pathology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Z H Zhang
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - X C Yan
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Y Sun
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Li
- Department of Pathology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai 200433, China
| | - F Hou
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai 200030, China
| | - J Y Zhang
- Department of Pathology, West China Hospital of Sichuan University, Chengdu 610041, China
| | - R F Huang
- Department of Pathology, Fudan University Cancer Center; Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - J P Lu
- Department of Pathology, Fudan University Cancer Center; Department of Oncology, Shanghai Medical College of Fudan University, Shanghai 200032, China
| | - Z Wang
- Department of Molecular Pathology, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - Y B Hu
- Department of Pathology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - H T Yuan
- Department of Pathology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Y J Dong
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - L Wang
- Department of Pathology, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, China
| | - Z Y Ke
- Department of Pathology, Xijing Hospital, Air Force Military Medical University, Xi'an 710032, China
| | - J S Geng
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Guo
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Zhang
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J M Ying
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Chen YP, Ke LF, Lu JP, Wang JC, Zhu WF, Chen FF, Lin SF, Xu CW, Wu MJ, Chen G. Prevalence And Clinical Significance Of Oncogenic CD79B And MYD88 Mutations In Primary Testicular Diffuse Large B-Cell Lymphoma: A Retrospective Study In China. Onco Targets Ther 2019; 12:10165-10175. [PMID: 32063711 PMCID: PMC6884971 DOI: 10.2147/ott.s222189] [Citation(s) in RCA: 8] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 11/08/2019] [Indexed: 12/16/2022] Open
Abstract
Purpose In this study, we investigated the prevalence of CD79B and MYD88 mutations and their relation to clinical characteristics in a cohort of Chinese patients with primary testicular diffuse large B cell lymphoma (PT-DLBCL). Patients and methods We examined the mutational status of CD79B and MYD88 by Sanger sequencing, and the gene amplification and protein expression of MYD88 in tissue samples from 30 cases of PT-DLBCL by quantitative polymerase chain reaction and immunohistochemistry, respectively. Western blotting was used to analyze phosphorylated STAT3 (p-STAT3) and phosphorylated p65 (p-p65) protein expression in cell lines harboring retroviral constructs for WT MYD88 or MYD88 mutant. Results Immunophenotypically, MYD88 protein staining was positive in 26/30 (86.67%) cases, and 23/30 (76.7%) cases tested positive for p65 in the nucleus. Genetically, CD79B mutation was found in 13/30 (43.3%) cases, whereas the MYD88L265P mutation was found in 18/30 (60.0%) cases. Interestingly, CD79B and MYD88 mutations were more prevalent in the non-germinal center B cell (GCB) subtype (83.3% and 76.9%, respectively) and were relatively rare in the GCB subtype (16.7% and 23.1%, respectively). Furthermore, although MYD88 was significantly amplified in PT-DLBCL, the amplification status showed no correlation with its mutational status and protein expression. Clinicopathological comparison between the mutant and wild-type group showed that both CD79B mutation and MYD88L265P were not significantly correlated with age, anatomical site, Ann Arbor stage, non-GCB/GCB subtype, p65 protein expression, BCL-2 protein expression, or BCL-2/c-MYC double expression (P>0.05). Survival analyses showed that high IPI and advanced stage (stage III–IV) associated with worse outcome (P<0.05). The expression of p-STAT3 and p-p65 protein was upregulated in the mutant group, indicating that MYD88 mutant activated NF-κB and JAK–STAT3 signaling. Conclusion Our results suggest that MYD88 and CD79B mutations are important drivers of immune-privileged site-associated DLBCL and highlight potential therapeutic targets for personalized treatment.
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Affiliation(s)
- Yan-Ping Chen
- Department of Pathology of Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, People's Republic of China.,Department of Fujian Provincial Key Laboratory of Tumor Biotherapy, Fuzhou, Fujian 350014, People's Republic of China
| | - Long-Feng Ke
- Department of Molecular Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, People's Republic of China
| | - Jian-Ping Lu
- Department of Pathology of Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, People's Republic of China
| | - Jian-Chao Wang
- Department of Pathology of Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, People's Republic of China.,Department of Fujian Provincial Key Laboratory of Tumor Biotherapy, Fuzhou, Fujian 350014, People's Republic of China
| | - Wei-Feng Zhu
- Department of Pathology of Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, People's Republic of China
| | - Fang-Fang Chen
- Department of Molecular Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, People's Republic of China
| | - Shao-Feng Lin
- Department of Thoracic Surgery, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, People's Republic of China
| | - Chun-Wei Xu
- Department of Molecular Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, People's Republic of China
| | - Mei-Juan Wu
- Department of Pathology of Zhejiang Cancer Hospital, Hanzhou 310022, People's Republic of China
| | - Gang Chen
- Department of Pathology of Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, People's Republic of China.,Department of Fujian Provincial Key Laboratory of Tumor Biotherapy, Fuzhou, Fujian 350014, People's Republic of China
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25
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Chen Y, Chen G, Li J, Huang YY, Li Y, Lin J, Chen LZ, Lu JP, Wang YQ, Wang CX, Pan LK, Xia XF, Yi X, Chen CB, Zheng XW, Guo ZQ, Pan JJ. Association of Tumor Protein p53 and Ataxia-Telangiectasia Mutated Comutation With Response to Immune Checkpoint Inhibitors and Mortality in Patients With Non-Small Cell Lung Cancer. JAMA Netw Open 2019; 2:e1911895. [PMID: 31539077 PMCID: PMC6755545 DOI: 10.1001/jamanetworkopen.2019.11895] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
IMPORTANCE Immune checkpoint inhibitors (ICIs) can elicit durable antitumor responses in patients with non-small cell lung cancer (NSCLC), but only 20% to 25% of patients respond to treatment. As important genes in the DNA damage response pathway, comutation in the tumor protein p53 (TP53) and ataxia-telangiectasia mutated (ATM) genes may be associated with genomic instability and hypermutation. However, the prevalence of TP53 and ATM comutation and its association with response to ICIs are not fully understood. OBJECTIVE To examine the prevalence of the TP53 and ATM comutation, the potential mechanism, and its association with response to ICIs among patients with NSCLC. DESIGN, SETTING, AND PARTICIPANTS This multiple-cohort study included patients with NSCLC from the Geneplus Institute, the Cancer Genome Atlas (TCGA), and the Memorial Sloan Kettering Cancer Center (MSKCC) databases and from the POPLAR and OAK randomized controlled trials. Samples in the Geneplus cohort were collected and analyzed from April 30, 2015, through February 28, 2019. Data from TCGA, the MSKCC, and the POPLAR and OAK cohorts were obtained on January 1, 2019, and analyzed from January 1 to April 10, 2019. Next-generation sequencing assays were performed on tumor samples by the Geneplus Institute. Genomic, transcriptomic, and clinical data were obtained from TCGA and MSKCC databases. EXPOSURES Comprehensive genetic profiling was performed to determine the prevalence of TP53 and ATM comutation and its association with prognosis and response to ICIs. MAIN OUTCOMES AND MEASURES The main outcomes were TP53 and ATM comutation frequency, overall survival (OS), progression-free survival, gene set enrichment analysis, and immune profile in NSCLC. RESULTS Patients with NSCLC analyzed in this study included 2020 patients in the Geneplus cohort (mean [SD] age, 59.5 [10.5] years; 1168 [57.8%] men), 1031 patients in TCGA cohort (mean [SD] age, 66.2 [9.5] years; 579 [56.2%] men), 1527 patients in the MSKCC cohort (662 [43.4%] men), 350 patients in the MSKCC cohort who were treated with ICIs (mean [SD] age, 61.4 [13.8] years; 170 [48.6%] men), and 853 patients in the POPLAR and OAK cohort (mean [SD] age, 63.0 [9.1] years; 527 [61.8%] men). Sites of TP53 and ATM comutation were found scattered throughout the genes, and no significant difference was observed in the frequency of TP53 and ATM comutation within the histologic subtypes and driver genes. In 5 independent cohorts of patients with NSCLC, TP53 and ATM comutation was associated with a significantly higher tumor mutation burden compared with the sole mutation and with no mutation (TCGA, MSKCC, Geneplus, and POPLAR and OAK cohort). Among patients treated with ICIs in the MSKCC cohort, TP53 and ATM comutation was associated with better OS than a single mutation and no mutation among patients with any cancer (median OS: TP53 and ATM comutation, not reached; TP53 mutation alone, 14.0 months; ATM mutation alone, 40.0 months; no mutation, 22.0 months; P = .001; NSCLC median OS: TP53 and ATM comutation, not reached; TP53 mutation alone, 11.0 months; ATM mutation alone, 16.0 months; no mutation, 14.0 months; P = .24). Similar results were found in the POPLAR and OAK cohort in which the disease control benefit rate, progression-free survival, and OS were all greater in patients with the TP53 and ATM comutation compared with the other 3 groups (median progression-free survival: TP53 and ATM comutation, 10.4 months; TP53 mutation, 1.6 months; ATM mutation, 3.5 months; no mutation, 2.8 months; P = .01; median OS: TP53 and ATM comutation, 22.1 months; TP53 mutation, 8.3 months; ATM mutation, 15.8 months; no mutation, 15.3 months; P = .002). CONCLUSIONS AND RELEVANCE This study's findings suggest that the TP53 and ATM comutation occurs in a subgroup of patients with NSCLC and is associated with an increased tumor mutation burden and response to ICIs. This suggests that TP53 and ATM comutation may have implications as a biomarker for guiding ICI treatment.
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Affiliation(s)
- Yu Chen
- Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
- Cancer Bio-immunotherapy Center, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
- Department of Medical Oncology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
| | - Gang Chen
- Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
- Department of Pathology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
| | - Jin Li
- Geneplus-Beijing Institute, Beijing, China
| | | | - Yi Li
- Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Jing Lin
- Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
- Cancer Bio-immunotherapy Center, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
- Department of Medical Oncology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
| | - Li-Zhu Chen
- Cancer Bio-immunotherapy Center, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
- Department of Medical Oncology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
| | - Jian-Ping Lu
- Department of Pathology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
| | - Yu-Qi Wang
- Geneplus-Beijing Institute, Beijing, China
| | | | - Leong Kin Pan
- China Certification and Inspection Group, Kuok Kim Medical Center III, Macao, China
- Hui Xian Medical Center, Macao, China
| | | | - Xin Yi
- Geneplus-Beijing Institute, Beijing, China
| | - Chuan-Ben Chen
- Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
- Cancer Bio-immunotherapy Center, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
| | - Xiong-Wei Zheng
- Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
- Department of Pathology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
| | - Zeng-Qing Guo
- Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
- Cancer Bio-immunotherapy Center, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
- Department of Medical Oncology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
| | - Jian-Ji Pan
- Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
- Cancer Bio-immunotherapy Center, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
- Department of Radiation Oncology, Fujian Medical University Cancer Hospital and Fujian Cancer Hospital, Fuzhou, China
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Gong X, Ma C, Yang P, Chen Y, Du C, Fu C, Lu JP. Computer-aided pancreas segmentation based on 3D GRE Dixon MRI: a feasibility study. Acta Radiol Open 2019; 8:2058460119834690. [PMID: 30944729 PMCID: PMC6440072 DOI: 10.1177/2058460119834690] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 01/28/2019] [Indexed: 01/08/2023] Open
Abstract
Background Pancreas segmentation is of great significance for pancreatic cancer radiotherapy positioning, pancreatic structure, and function evaluation. Purpose To investigate the feasibility of computer-aided pancreas segmentation based on optimized three-dimensional (3D) Dixon magnetic resonance imaging (MRI). Material and Methods Seventeen healthy volunteers (13 men, 4 women; mean age = 53.4 ± 13.2 years; age range = 28–76 years) underwent routine and optimized 3D gradient echo (GRE) Dixon MRI at 3.0 T. The computer-aided segmentation of the pancreas was executed by the Medical Imaging Interaction ToolKit (MITK) with the traditional segmentation algorithm pipeline (a threshold method and a morphological method) on the opposed-phase and water images of Dixon. The performances of our proposed computer segmentation method were evaluated by Dice coefficients and two-dimensional (2D)/3D visualization figures, which were compared for the opposed-phase and water images of routine and optimized Dixon sequences. Results The dice coefficients of the computer-aided pancreas segmentation were 0.633 ± 0.080 and 0.716 ± 0.033 for opposed-phase and water images of routine Dixon MRI, respectively, while they were 0.415 ± 0.143 and 0.779 ± 0.048 for the optimized Dixon MRI, respectively. The Dice index was significantly higher based on the water images of optimized Dixon than those in the other three groups (all P values < 0.001), including water images of routine Dixon MRI and both of the opposed-phase images of routine and optimized Dixon sequences. Conclusion Computer-aided pancreas segmentation based on Dixon MRI is feasible. The water images of optimized Dixon obtained the best similarity with a good stability.
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Affiliation(s)
- Xiaoliang Gong
- College of Electronic and Information Engineering, Tongji University, Shanghai, PR China
| | - Chao Ma
- Department of Radiology, Changhai Hospital of Shanghai, The Second Medical University, Shanghai, PR China
| | - Panpan Yang
- Department of Radiology, Changhai Hospital of Shanghai, The Second Medical University, Shanghai, PR China
| | - Yufei Chen
- College of Electronic and Information Engineering, Tongji University, Shanghai, PR China
| | - Chaolin Du
- College of Electronic and Information Engineering, Tongji University, Shanghai, PR China
| | - Caixia Fu
- Application Development, Siemens Shenzhen Magnetic Resonance Ltd., Shenzhen, PR China
| | - Jian-Ping Lu
- Department of Radiology, Changhai Hospital of Shanghai, The Second Medical University, Shanghai, PR China
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Zou J, Wang Z, Chen YK, Zhang GP, Lu JP, Zheng HL. [Optimization of delivering minimum Gd-DTPA at the posterior upper point on tympanic medial wall and hT2W-3D-FLAIR sequence for detecting endolymphatic hydrops]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 53:931-938. [PMID: 30585006 DOI: 10.3760/cma.j.issn.1673-0860.2018.12.011] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To optimize delivery of gadolinium-diethylenetriamine pentaacetic acid(Gd-DTPA) at the posterior upper point on tympanic medial wall and heavily T2-weighted 3-dimensional fluid-attenuated inversion recovery (hT2W-3D-FLAIR) sequence, and to implement the technique of detecting endolymphatic hydrops using gadolinium-enhancement MRI. Methods: Thirteen patients with periphery vertigo, who visited Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Changhai Hospital during June and December of 2017, were enrolled in the study.0.10-0.20 ml of Gd-DTPA in various dilutions (10, 20, and 40-fold) were delivered at the posterior upper point on tympanic medial wall using a soft-tipped tympanic suction and drug-spraying needle through an artificially perforated tympanic membrane. Inner ear MRI was performed at 8, 24 h after Gd-DTPA administration using a 3T MR machine in combination with a 20-channel Tim 4G head/neck coil and the sequence of hT2W-3D-FLAIR to detect the gadolinium-enhancement signal within the inner ear and possible endolymphatic hydrops. The scanning time was either 8 min 35 s or 15 min 11 s. Results: Efficient inner ear uptake of Gd-DTPA was detected and induced high signal to noise ratio of MRI in patients receiving targeted delivery of 0.15-0.20 ml of 10-fold diluted contrast agent at the posterior upper point on tympanic medial wall. At 8 h after delivery, significant uptake was detected in the scala tympani and vestibuli of hook region and basal turn of the cochlea, and perilymhatic compartment of the vestibule. At 24 h after delivery, the distribution of Gd-DTPA became homogenous in each turn of the cochlea and perilymphatic compartment of the vestibule. However, obvious individual variance existed in the inner ear uptake when 0.10 ml of 40-fold diluted Gd-DTPA was delivered. Efficient inner ear uptake and high quality images that generated in patients receiving 0.10, 0.15, and 0.20 ml of 20-fold Gd-DTPA demonstrated endolymphatic hydrops with minor individual variance. There was insignificant difference in the enhancement signal of inner ear between 0.15 and 0.10 ml groups when Gd-DTPA was diluted at 20-fold except for the signal of semicircular canal of 0.15 ml group (190.00±53.95 vs 165.50±42.13, t=2.61, P<0.05). There was insignificant difference in the image quality between 8 min 35 s and 15 min 11 s canning time. Various degrees of endolymphatic hydrops were detected in 7 cochleae and 11 vestibule, and both simultaneous cochlear and vestibular endolymphatic hydrops were detected in 4 ears. Cochlear endolymphatic hydrops was detected in all the 3 patients with definite Meniere's disease, and 2 of them had combined cochlear and vestibular endolymphatic hydrops. Endolymphatic hydrops was not detected in patients with possible Meniere's disease nor with symptoms of superior semicircular canal dehiscence. Conclusion: Targeted delivery of 0.10 ml with 20-fold diluted Gd-DTPA (total dosage of 5 μmol) at the posterior upper point on tympanic medial wall in combination with 8 min 35 s scanning time hT2W-3D-FLAIR sequence for inner ear MRI in a 3T MR machine is a clinically practical method to detect endolymphatic hydrops, and reduce the requirement for MRI hardware.
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Affiliation(s)
- J Zou
- Department of Otorhinolaryngology Head and Neck Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Z Wang
- Department of Radiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - Y K Chen
- Department of Radiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - G P Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - J P Lu
- Department of Radiology, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
| | - H L Zheng
- Department of Otorhinolaryngology Head and Neck Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, China
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Chen YP, Wu ZJ, Liu W, Lu JP, Wang JC, Zhu WF, Chen FF, Zhong LH, Chen G. [Clinicopathological characteristics of adult T cell leukemia/lymphoma]. Zhonghua Bing Li Xue Za Zhi 2019; 48:11-16. [PMID: 30641639 DOI: 10.3760/cma.j.issn.0529-5807.2019.01.003] [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
Objective: To investigate the clinical presentation, clinicopathologic features, diagnosis and differential diagnosis of adult T cell leukemia/lymphoma (ATLL). Methods: Four cases of ATLL from Fujian Cancer Hospital between October 2017 and May 2018 were analyzed using hematoxylin-eosin and immunohistochemical stains and polymerase chain reaction (PCR) for HTLV-1 provirus genes. The relevant literature was reviewed. Results: There were two males and two females, age range 38-80 years. All patients were from coastal cities of Fujian province. Clinical presentations including lymphadenopathy, hepatomegaly and splenomegaly were detected in most patients; skin lesion, hypercalcemia and lymphocytosis were also commonly detected.Histologically, there was diffuse effacement of the normal architecture by tumor cells infiltration. The inflammatory background is usually sparse, with scanty eosinophils. The atypical lymphoid cells were typically medium to large sized with pronounced nuclear pleomorphism, irregular nuclei, chromatin clumping and prominent nucleoli. Blast-like cells with transformed nuclei were present in variable proportions. Giant cells with convoluted or cerebriform nuclear contours may be present. Rare cases may be composed predominantly of anaplastic tumor cells. Characteristic "flower cells" with large multi-lobated nuclei can be seen. The tumor cells were strongly positive for CD2, CD3, CD5, CD4 and CD25, but negative for CD7, CD8 and cytotoxic molecules (including TIA-1, Granzyme B and perforin). In three cases, the large transformed cells were positive for CD30. In one case, the anaplastic large cells were diffusely and strongly positive for CD30. All cases were negative for EBER, but positive for HTLV-1 provirus. Conclusions: ATLL is a rare type of T cell lymphoma with unique clinical and pathological features, and should be distinguished from peripheral T cell lymphoma, NOS, ALK negative anaplastic large cell lymphoma and mycosis fungoides. Hypercalcemia, systemic disease, characteristic "flower cells" and specific immunophenotypic profile of CD3(+), CD4(+), CD25(+), and CD7(-) are highly suggestive. However, ATLL can only be confirmed if the presence of HTLV-1 provirus.
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Affiliation(s)
- Y P Chen
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China; Fujian Provincial Key Laboratory of Tumor Biotherapy, Fuzhou 350014, China
| | - Z J Wu
- Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - W Liu
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - J P Lu
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - J C Wang
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - W F Zhu
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - F F Chen
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - L H Zhong
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - G Chen
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
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Wang F, Lu L, Wang SB, Zhang L, Ng CH, Ungvari GS, Cao XL, Lu JP, Hou CL, Jia FJ, Xiang YT. The prevalence of autism spectrum disorders in China: a comprehensive meta-analysis. Int J Biol Sci 2018; 14:717-725. [PMID: 29910682 PMCID: PMC6001678 DOI: 10.7150/ijbs.24063] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [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: 11/28/2017] [Accepted: 02/16/2018] [Indexed: 12/22/2022] Open
Abstract
There are conflicting prevalence estimates of autism spectrum disorders (ASDs) in mainland China (China thereafter). This study is a comprehensive meta-analysis of the pooled prevalence of ASDs in the general population in China. Study investigators independently conducted a systematic literature search of the following databases: PubMed, EMBASE, PsycINFO, China National Knowledge Infrastructure, Chinese biomedical literature service system, and Wan Fang. Studies reporting prevalence of ASDs and autism in Chinese population were identified and analysed using the Comprehensive Meta-Analysis program with the random effects model. Forty-four studies were included in the meta-analysis comprising 2,337,321 subjects of whom 46.66 % were females. The mean age of subjects ranged from 1.6 to 8 years. Based on diagnostic criteria the pooled prevalence of ASDs was 39.23 per 10,000 (95% CI: 28.44-50.03 per 10,000, I2=89.2%); specifically, the prevalence of autism was 10.18 per 10,000 (95% CI: 8.46-11.89 per 10,000, I2=92.5%). Subgroup analyses revealed significant difference in the prevalence of ASDs between genders (72.77 per 10,000 in males vs. 16.45 per 10,000 in females). In conclusion, the prevalence of ASDs and autism in China was found generally lower than those reported in other countries. Further studies are needed to clarify the variation in prevalence.
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Affiliation(s)
- Fei Wang
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR
- Guangdong Mental Health Center, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Li Lu
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR
| | - Shi-Bin Wang
- Guangdong Mental Health Center, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Ling Zhang
- The National Clinical Research Center for Mental Disorders, China &Center of Depression, Beijing Institute for Brain Disorders & Mood Disorders Center, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - Chee H. Ng
- Department of Psychiatry, University of Melbourne, Melbourne, Victoria, Australia
| | - Gabor S. Ungvari
- The University of Notre Dame Australia / Graylands Hospital, Perth, Australia
| | - Xiao-Lan Cao
- Shenzhen Key Laboratory for Psychological Healthcare & Shenzhen Institute of Mental Health, Shenzhen Kangning Hospital & Shenzhen Mental Health Center, Shenzhen, China
| | - Jian-Ping Lu
- Shenzhen Key Laboratory for Psychological Healthcare & Shenzhen Institute of Mental Health, Shenzhen Kangning Hospital & Shenzhen Mental Health Center, Shenzhen, China
| | - Cai-Lan Hou
- Guangdong Mental Health Center, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Fu-Jun Jia
- Guangdong Mental Health Center, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Yu-Tao Xiang
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR
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Wang WX, Xu CW, Chen YP, Liu W, Zhong LH, Chen FF, Zhuang W, Huang YJ, Huang ZZ, Chen RR, Guan YF, Yi X, Lv TF, Zhu WF, Lu JP, Wang XJ, Shi Y, Lin XD, Chen G, Song Y. TP53 mutations predict for poor survival in ALK rearrangement lung adenocarcinoma patients treated with crizotinib. J Thorac Dis 2018; 10:2991-2998. [PMID: 29997966 DOI: 10.21037/jtd.2018.04.98] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background Advanced non-small cell lung cancer (NSCLC) patients who harbor anaplastic lymphoma kinase (ALK) rearrangement are sensitive to an ALK inhibitor (crizotinib), but not all ALK-positive patients benefit equally from crizotinib treatment. We analyze the impact of TP53 mutations on response to crizotinib in patients with ALK rearrangement NSCLC. Methods Sixty-six ALK rearrangement NSCLC patients receiving crizotinib were analyzed. 21 cases were detected successfully by the next generation sequencing validation FFPE before crizotinib. TP53 mutations were evaluated in 8 patients in relation to disease control rate (DCR), objective response rate (ORR), progression-free survival (PFS) and overall survival (OS). Results TP53 mutations were observed in 2 (25.00%), 1 (12.50%), 1 (12.50%) and 4 (50.00%) patients in exons 5, 6, 7 and 8, respectively. The majority of patients were male (75.00%, 6/8), less than 65 years old (62.50%, 5/8) and never smokers (75.00%, 6/8). ORR and DCR for crizotinib in the entire case series were 61.90% and 71.43%, respectively. Statistically significant difference was observed in terms of PFS and OS between TP53 gene wild group and mutation group patients (P=0.038, P=0.021, respectively). Conclusions TP53 mutations reduce responsiveness to crizotinib and worsen prognosis in ALK rearrangement NSCLC patients.
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Affiliation(s)
- Wen-Xian Wang
- Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Chun-Wei Xu
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Yan-Ping Chen
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Wei Liu
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Li-Hua Zhong
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Fang-Fang Chen
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Wu Zhuang
- Department of Medical Oncology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Yun-Jian Huang
- Department of Medical Oncology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Zhang-Zhou Huang
- Department of Medical Oncology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | | | | | - Xin Yi
- Geneplus-Beijing, Beijing 102200, China
| | - Tang-Feng Lv
- Department of Respiratory Medicine, Jinling Hospital, Nanjing 210002, China
| | - Wei-Feng Zhu
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Jian-Ping Lu
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Xiao-Jiang Wang
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Yi Shi
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Xian-Dong Lin
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Gang Chen
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Yong Song
- Department of Respiratory Medicine, Jinling Hospital, Nanjing 210002, China
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Xu CW, Wang WX, Chen YP, Chen Y, Liu W, Zhong LH, Chen FF, Zhuang W, Song ZB, Chen XH, Huang YJ, Guan YF, Yi X, Lv TF, Zhu WF, Lu JP, Wang XJ, Shi Y, Lin XD, Chen G, Song Y. Simultaneous VENTANA IHC and RT-PCR testing of ALK status in Chinese non-small cell lung cancer patients and response to crizotinib. J Transl Med 2018; 16:93. [PMID: 29642919 PMCID: PMC5896026 DOI: 10.1186/s12967-018-1468-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 12/12/2017] [Accepted: 03/31/2018] [Indexed: 11/19/2022] Open
Abstract
Background ALK rearrangement-advanced NSCLC patients respond to crizotinib. ALK rearrangement is currently determined with RT-PCR. VENTANA IHC is a standard method to identify ALK protein overexpression in NSCLC; however, VENTANA IHC has rarely been used to determine the response to crizotinib in Chinese patients with NSCLC and ALK overexpression. To better clarify the clinical implication of VENTANA IHC to detect ALK rearrangements, we conducted this study to analyze VENTANA IHC and RT-PCR in a large cohort of Chinese patients with NSCLC undergoing screening for ALK rearrangements. Methods A total of 1720 patients with NSCLC who had ALK rearrangements detected by VENTANA IHC and/or RT-PCR were included in this analysis. We compared the efficacy and survival of ALK-positive patients detected by VENTANA IHC and RT-PCR. We used NGS to identify patients in whom the two methods were inconsistent. Results Among 1720 patients, 187 (10.87%) were shown to be ALK-positive by VENTANA IHC and/or RT-PCR, and 66 received crizotinib treatment. We identified 10.27% (172/1674) of patients as ALK-positive by the VENTANA IHC method, and 12.73% (41/322) of patients had ALK rearrangements by the RT-PCR method. Twenty-nine of 276 (10.51%) ALK-positive patients were simultaneously analyzed using VENTANA IHC and RT-PCR. The overall response rates were 65.90% (29/44) by VENTANA IHC and 55.88% (19/34) by RT-PCR. The disease control rates were 86.36% (38/44) by VENTANA IHC and 76.47% (26/34) by RT-PCR. In contrast, the median progression-free survival for VENTANA IHC and RT-PCR was 8.5 and 9.2 months, respectively. The VENTANA IHC and RT-PCR results obtained for 6 of 17 ALK-positive patients were inconsistent based on NGS; specifically, 4 patients had EML4-ALK fusions, 2 patients had non EML4-ALK fusions, 1 patient had a KCL1-ALK fusion, and one patient had a FBXO36-ALK fusion. Conclusions VENTANA IHC is a reliable and rapid screening tool used in routine pathologic laboratories for the identification of suitable candidates for ALK-targeted therapy. VENTANA IHC has moderate sensitivity and a slightly higher association with response to therapy with ALK inhibitors, and some VENTANA IHC-positive, but RT-PCR-negative cases may benefit from crizotinib.
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Affiliation(s)
- Chun-Wei Xu
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian, People's Republic of China
| | - Wen-Xian Wang
- Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou, 310022, Zhejiang, People's Republic of China
| | - Yan-Ping Chen
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian, People's Republic of China
| | - Yu Chen
- Department of Medical Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, 350014, Fujian, People's Republic of China
| | - Wei Liu
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian, People's Republic of China
| | - Li-Hua Zhong
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian, People's Republic of China
| | - Fang-Fang Chen
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian, People's Republic of China
| | - Wu Zhuang
- Department of Medical Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, 350014, Fujian, People's Republic of China
| | - Zheng-Bo Song
- Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou, 310022, Zhejiang, People's Republic of China
| | - Xiao-Hui Chen
- Department of Thoracic Surgery, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, 350014, Fujian, People's Republic of China
| | - Yun-Jian Huang
- Department of Medical Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, 350014, Fujian, People's Republic of China
| | - Yan-Fang Guan
- Geneplus-Beijing, Beijing, 102200, People's Republic of China
| | - Xin Yi
- Geneplus-Beijing, Beijing, 102200, People's Republic of China
| | - Tang-Feng Lv
- Department of Respiratory Medicine, Jinling Hospital, Nanjing, 210002, Jiangsu, People's Republic of China
| | - Wei-Feng Zhu
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian, People's Republic of China
| | - Jian-Ping Lu
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian, People's Republic of China
| | - Xiao-Jiang Wang
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian, People's Republic of China
| | - Yi Shi
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian, People's Republic of China
| | - Xian-Dong Lin
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian, People's Republic of China
| | - Gang Chen
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, No 420, Fuma Road, Fuzhou, 350014, Fujian, People's Republic of China.
| | - Yong Song
- Department of Respiratory Medicine, Jinling Hospital, Nanjing, 210002, Jiangsu, People's Republic of China
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Zhu XM, Liang S, Shi HB, Lu JP, Dong B, Liao QS, Lin FC, Liu XH. VPS9 domain-containing proteins are essential for autophagy and endocytosis in Pyricularia oryzae. Environ Microbiol 2018; 20:1516-1530. [DOI: 10.1111/1462-2920.14076] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 02/14/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Xue-Ming Zhu
- State Key Laboratory for Rice Biology, Biotechnology Institute; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Shuang Liang
- State Key Laboratory for Rice Biology, Biotechnology Institute; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Huan-Bin Shi
- State Key Laboratory for Rice Biology, Biotechnology Institute; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Jian-Ping Lu
- College of Life Sciences; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Bo Dong
- Institute of Virology and Biotechnology; Zhejiang Academy of Agricultural Science; Hangzhou 310021 People's Republic of China
| | - Qian-Sheng Liao
- College of Life Sciences; Zhejiang SCI-Tech University; Hangzhou 310018 People's Republic of China
| | - Fu-Cheng Lin
- State Key Laboratory for Rice Biology, Biotechnology Institute; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Xiao-Hong Liu
- State Key Laboratory for Rice Biology, Biotechnology Institute; Zhejiang University; Hangzhou 310058 People's Republic of China
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Ma C, Li J, Boukar MB, Yang P, Wang L, Chen L, Su L, Qu J, Chen SY, Hao Q, Lu JP. Optimized ROI size on ADC measurements of normal pancreas, pancreatic cancer and mass-forming chronic pancreatitis. Oncotarget 2017; 8:99085-99092. [PMID: 29228754 PMCID: PMC5716794 DOI: 10.18632/oncotarget.18457] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 05/23/2017] [Indexed: 12/20/2022] Open
Abstract
Objectives To investigate the effects of region of interest (ROI) sizes on apparent diffusion coefficient (ADC) measurements for the differentiation of normal pancreas (NP), pancreatic ductal adenocarcinoma (PDAC) and mass-forming chronic pancreatitis (MFCP). Results There were no significant differences for the mean ADCs measured by 12 different-size ROIs for MFCP, or PDAC and NP (P = 0.858–1.0). With the increase of ROI size (≥ 55 mm2), ADCs of PDAC were significantly lower than those of NP (all P < 0.05), but there was no difference of the accuracy in ADC for differentiating the two groups only at a ROI size of 214 mm2. When ROI size was above 99 mm2, ADCs of MFCP were significantly lower than those of NP (all P < 0.05). There were no significant differences for any of the mean ADCs measured by 12 different-size ROIs between PDAC and MFCP (P > 0.05). Materials and Methods Diffusion-weighted imaging (DWI) was performed on 89 participants: 64 with PDAC, 7 with MFCP, as well as 18 healthy volunteers. ADC maps were created using mono-exponential model. A homemade software was used to measure the mean ADC values of 12 concentric round ROIs (areas: 15, 46, 55, 82, 99, 121, 134, 152, 161, 189, 214, 223, and 245 mm2) for the mass of lesions and the NP tissue. Conclusions In ADC measurements, the optimized ROI size is 214 mm2 for the differentiation of PDAC and NP; ROI size of ≥ 99 mm2 is recommended to differentiate between MFCP and NP. ADC was not useful for the differentiation of PDAC and MFCP.
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Affiliation(s)
- Chao Ma
- Department of Radiology, Changhai Hospital of Shanghai, The Second Military Medical University, Shanghai, China
| | - Jing Li
- Department of Radiology, Changhai Hospital of Shanghai, The Second Military Medical University, Shanghai, China
| | - Mbaiaoure Barak Boukar
- Department of Radiology, Changhai Hospital of Shanghai, The Second Military Medical University, Shanghai, China
| | - Panpan Yang
- Department of Radiology, Changhai Hospital of Shanghai, The Second Military Medical University, Shanghai, China
| | - Li Wang
- Department of Radiology, Changhai Hospital of Shanghai, The Second Military Medical University, Shanghai, China
| | - Luguang Chen
- Department of Radiology, Changhai Hospital of Shanghai, The Second Military Medical University, Shanghai, China
| | - Li Su
- School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Jianxun Qu
- GE Healthcare, MR Group, Shanghai, China
| | - Shi-Yue Chen
- Department of Radiology, Changhai Hospital of Shanghai, The Second Military Medical University, Shanghai, China
| | - Qiang Hao
- Department of Radiology, Changhai Hospital of Shanghai, The Second Military Medical University, Shanghai, China
| | - Jian-Ping Lu
- Department of Radiology, Changhai Hospital of Shanghai, The Second Military Medical University, Shanghai, China
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Chen YP, Zhu WF, Chen LF, Lu JP, He TM, Fu WD, Xu CW, Chen G. [Clinicopathologic features and expression of OCT4 protein in testicular diffuse large B cell lymphoma]. Zhonghua Bing Li Xue Za Zhi 2017; 46:383-387. [PMID: 28591984 DOI: 10.3760/cma.j.issn.0529-5807.2017.06.004] [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
Objective: To evaluate the expression of OCT4 and SALL4 in testicular diffuse large B-cell lymphoma (DLBCL), and the utility of an immunohistochemical (IHC) panel of OCT4, SALL4 and CD20 in the differential diagnosis of DLBCL and GCT of the testis. Methods: Eighteen cases of testicular DLBCL were selected.IHC method was used to detect the protein expression of CD20, CD3, CD5, CD10, bcl-6, MUM1, Ki-67, bcl-2, c-MYC, OCT4 and SALL4. Results: Among the 18 cases, CD20 and PAX5 were strongly and diffusely expressed in all cases, while CD21, CD3, cyclinD1, SALL4, CD117 and PLAP were all negative. CD5, bcl-2 and c-myc were expressed in 3, 16 and 8 cases, respectively. Ki-67 proliferation index ranged from 40%-95%. Bcl-2 and c-MYC were co-expressed in seven cases. Four cases were GCB-DLBCL and the remaining 14 cases were non-GCB-DLBCL, according to Hans algorithm. Nuclear OCT4 expression was present in two cases, which demonstrated moderate expression in >50% of neoplastic cells. Univariate analysis showed that clinical stage, CD5 and OCT4 expression were relevant to prognosis. Multivariate Cox regression analysis further confirmed that clinical stage, CD5 and OCT4 were independent prognostic factors in patients with testicular DLBCL. Conclusions: Care should be exercised in using OCT4 as the sole marker of germ cell differentiation in the testis. The association of OCT4 and CD5, bcl-2 co-expression raises the question of whether OCT4 expression in DLBCL may reflect more aggressive biology.
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Affiliation(s)
- Y P Chen
- Department of Pathology of Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
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Hu D, Zhang HJ, Shen WC, Zhu WF, Li L, Lin XD, Lu JP, Zheng XW, Wang C, Zhou XR. [Microcystic, elongated and fragmented invasive pattern in endometrial adenocarcinoma: a clinicopathologic analysis of 72 cases]. Zhonghua Bing Li Xue Za Zhi 2017; 46:318-322. [PMID: 28468037 DOI: 10.3760/cma.j.issn.0529-5807.2017.05.007] [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
Objective: To investigate the clinicopathologic features of microcystic, elongated and fragmented (MELF) pattern invasion of endometrial adenocarcinoma. Methods: HE and immunohistochemistry staining method were used to analysis morphologic features and immunophenotype of 72 patients of endometrial adenocarcinoma with MELF pattern invasion, and chi-square test was used to analysis the clinicopathologic features. Results: The mean age of 72 patients was 54 years (40 to 70 years). Thirty-two patients were pre-menopausal and 40 were post-menopausal. According to the FIGO staging system (2014), 32 cases(44.4%)were at stage Ⅰ, 22 cases(30.6%)at stage Ⅱ, 17 cases(23.6%)at stage Ⅲ and 1 case(1.4%) at stage Ⅳ. Microscopically, MELF invasion showed microcystic, elongated slit-like or fragmented glands in myometrium and their lining cells usually were cube or flat, as well as the single or clusters of eosinophilic tumor cells mimicking histocytes. In addition, a fibromyxoid or inflammatory stromal response was often present.Immunohistochemical staining showed that MELF invasion was positive for p16, CA125 and CA19-9, but negative for ER, PR and p53.Compared with non-MELF pattern invasion, significant differences were noted in menopause pausimenia, FIGO stages, deep invasion into myometrium, lymph metastasis, lymphovascular space invasion (LVSL), serum CA125 and CA19-9 in patients with MELF pattern invasion (all P<0.05). Conclusions: MELF pattern invasion of endometrial adenocarcinoma is characterized by advanced FIGO stage, deep myoinvasion, high metastasis rate to lymph node and LVSL. Pathologists should recognize the MELF invasion and evaluate the depth of myometrium of infiltration and LVSL with special attention to the presence of MELF invasion with necessary immunohistochemistry for more accurate pathological diagnosis.
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Affiliation(s)
- D Hu
- Department of Pathology, Fujian Provincial Cancer Hospital, the Affiliated Hospital of Fujian Medical University, Fuzhou 350014, China
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Ma C, Guo X, Liu L, Zhan Q, Li J, Zhu C, Wang L, Zhang J, Fang X, Qu J, Chen S, Shao C, Lu JP. Effect of region of interest size on ADC measurements in pancreatic adenocarcinoma. Cancer Imaging 2017; 17:13. [PMID: 28464866 PMCID: PMC5414294 DOI: 10.1186/s40644-017-0116-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 02/17/2017] [Accepted: 04/27/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND To investigate the influence of region of interest (ROI) size on tumor apparent diffusion coefficient (ADC) measurements in pancreatic cancer. METHODS The study population consisted of 64 patients with pathologically proved pancreatic ductal adenocarcinomas (PDACs), who underwent preoperative magnetic resonance imaging (MRI) examinations including diffusion-weighted imaging (DWI). The tumor ADCs were measured by two independent readers using six round ROIs with sizes ranging from 20 to 214 mm2 (9 to 97 pixels) in both the six separate measurements. The intra- and inter-observer variabilities were analyzed by using the coefficient of variance (CV), the interclass correlation coefficient (ICC) and Bland-Altman analysis. The mean ADCs measured with the 6 different-sized ROIs were compared using one-way repeated analysis of variance. The sample sizes were calculated by using 80% power and a 5% significance level to detect 10 to 25% changes in ADC measurements. RESULTS The largest ROI (ROI214) yielded the best intra-observer repeatability (CV, 6.3%; ICC, 0.93) and inter-observer reproducibility (CV, 10.1%; ICC, 0.84). The mean differences in ADC measurements ± limits of agreement between the two readers were (0.06 ± 0.47) × 10-3 mm2 for ROI20, (0.08 ± 0.46) × 10-3 mm2 for ROI46, (0.05 ± 0.37) × 10-3 mm2 for ROI82, (0.07 ± 0.42) × 10-3 mm2 for ROI115, (0.05 ± 0.43) × 10-3 mm2 for ROI152 and (-0.02 ± 0.29) × 10-3 mm2 for ROI214. CONCLUSIONS ROI size had a considerable influence on the ADC measurements of PDACs.
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Affiliation(s)
- Chao Ma
- Department of Radiology, Changhai Hospital of Shanghai, the Second Military Medical University, No.168 Changhai Road, 200433, Shanghai, China
| | - Xiaoyu Guo
- Department of Radiology, Changhai Hospital of Shanghai, the Second Military Medical University, No.168 Changhai Road, 200433, Shanghai, China
| | - Li Liu
- Department of Radiology, Changhai Hospital of Shanghai, the Second Military Medical University, No.168 Changhai Road, 200433, Shanghai, China
| | - Qian Zhan
- Department of Radiology, Changhai Hospital of Shanghai, the Second Military Medical University, No.168 Changhai Road, 200433, Shanghai, China
| | - Jing Li
- Department of Radiology, Changhai Hospital of Shanghai, the Second Military Medical University, No.168 Changhai Road, 200433, Shanghai, China
| | - Chengcheng Zhu
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, California, USA
| | - Li Wang
- Department of Radiology, Changhai Hospital of Shanghai, the Second Military Medical University, No.168 Changhai Road, 200433, Shanghai, China.
| | - Jing Zhang
- Department of Pathology, Changhai Hospital of Shanghai, the Second Military Medical University, Shanghai, China
| | - Xu Fang
- Department of Radiology, Changhai Hospital of Shanghai, the Second Military Medical University, No.168 Changhai Road, 200433, Shanghai, China
| | - Jianxun Qu
- GE Healthcare, MR Group, Shanghai, China
| | - Shiyue Chen
- Department of Radiology, Changhai Hospital of Shanghai, the Second Military Medical University, No.168 Changhai Road, 200433, Shanghai, China
| | - Chengwei Shao
- Department of Radiology, Changhai Hospital of Shanghai, the Second Military Medical University, No.168 Changhai Road, 200433, Shanghai, China
| | - Jian-Ping Lu
- Department of Radiology, Changhai Hospital of Shanghai, the Second Military Medical University, No.168 Changhai Road, 200433, Shanghai, China
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Cao XL, Wang SB, Zhong BL, Zhang L, Ungvari GS, Ng CH, Li L, Chiu HFK, Lok GKI, Lu JP, Jia FJ, Xiang YT. The prevalence of insomnia in the general population in China: A meta-analysis. PLoS One 2017; 12:e0170772. [PMID: 28234940 PMCID: PMC5325204 DOI: 10.1371/journal.pone.0170772] [Citation(s) in RCA: 202] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 01/10/2017] [Indexed: 11/19/2022] Open
Abstract
This is the first meta-analysis of the pooled prevalence of insomnia in the general population of China. A systematic literature search was conducted via the following databases: PubMed, PsycINFO, EMBASE and Chinese databases (China National Knowledge Interne (CNKI), WanFang Data and SinoMed). Statistical analyses were performed using the Comprehensive Meta-Analysis program. A total of 17 studies with 115,988 participants met the inclusion criteria for the analysis. The pooled prevalence of insomnia in China was 15.0% (95% Confidence interval [CI]: 12.1%-18.5%). No significant difference was found in the prevalence between genders or across time period. The pooled prevalence of insomnia in population with a mean age of 43.7 years and older (11.6%; 95% CI: 7.5%-17.6%) was significantly lower than in those with a mean age younger than 43.7 years (20.4%; 95% CI: 14.2%-28.2%). The prevalence of insomnia was significantly affected by the type of assessment tools (Q = 14.1, P = 0.001). The general population prevalence of insomnia in China is lower than those reported in Western countries but similar to those in Asian countries. Younger Chinese adults appear to suffer from more insomnia than older adults. Trial Registration: CRD 42016043620
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Affiliation(s)
- Xiao-Lan Cao
- Shenzhen Key Laboratory for Psychological Healthcare & Shenzhen Institute of Mental Health, Shenzhen Kangning Hospital & Shenzhen Mental Health Center, Shenzhen, China
- Faculty of Mental health, Shenzhen University, Guangdong province, China
| | - Shi-Bin Wang
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Bao-Liang Zhong
- The Affiliated Mental Health Center, Tongji Medical College of Huazhong University of Science & Technology, Wuhan, China
| | - Ling Zhang
- The National Clinical Research Center for Mental Disorders, China & Center of Depression, Beijing Institute for Brain Disorders & Mood Disorders Center, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - Gabor S. Ungvari
- The University of Notre Dame Australia/Marian Centre, Perth, Australia
- School of Psychiatry & Clinical Neurosciences, University of Western Australia, Perth, Australia
| | - Chee H. Ng
- Department of Psychiatry, University of Melbourne, Melbourne, Victoria, Australia
| | - Lu Li
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR, China
| | - Helen F. K. Chiu
- Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China
| | - Grace K. I. Lok
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR, China
- Kiang Wu Nursing College of Macau, Macao SRA, China
| | - Jian-Ping Lu
- Shenzhen Key Laboratory for Psychological Healthcare & Shenzhen Institute of Mental Health, Shenzhen Kangning Hospital & Shenzhen Mental Health Center, Shenzhen, China
| | - Fu-Jun Jia
- Guangdong Mental Health Center, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangdong Province, China
- * E-mail: (YTX); (FJJ)
| | - Yu-Tao Xiang
- Unit of Psychiatry, Faculty of Health Sciences, University of Macau, Macao SAR, China
- * E-mail: (YTX); (FJJ)
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Liu XH, Zhao YH, Zhu XM, Zeng XQ, Huang LY, Dong B, Su ZZ, Wang Y, Lu JP, Lin FC. Autophagy-related protein MoAtg14 is involved in differentiation, development and pathogenicity in the rice blast fungus Magnaporthe oryzae. Sci Rep 2017; 7:40018. [PMID: 28067330 PMCID: PMC5220305 DOI: 10.1038/srep40018] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 12/01/2016] [Indexed: 11/09/2022] Open
Abstract
Autophagy is the major intracellular degradation system by which cytoplasmic materials are delivered to and degraded in the vacuole/lysosome in eukaryotic cells. MoAtg14 in M. oryzae, a hitherto uncharacterized protein, is the highly divergent homolog of the yeast Atg14 and the mammal BARKOR. The MoATG14 deletion mutant exhibited collapse in the center of the colonies, poor conidiation and a complete loss of virulence. Significantly, the ΔMoatg14 mutant showed delayed breakdown of glycogen, less lipid bodies, reduced turgor pressure in the appressorium and impaired conidial autophagic cell death. The autophagic process was blocked in the ΔMoatg14 mutant, and the autophagic degradation of the marker protein GFP-MoAtg8 was interrupted. GFP-MoAtg14 co-localized with mCherry-MoAtg8 in the aerial hypha. In addition, a conserved coiled-coil domain was predicted in the N-terminal region of the MoAtg14 protein, a domain which could mediate the interaction between MoAtg14 and MoAtg6. The coiled-coil domain of the MoAtg14 protein is essential for its function in autophagy and pathogenicity.
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Affiliation(s)
- Xiao-Hong Liu
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
| | - Ya-Hui Zhao
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
| | - Xue-Ming Zhu
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
| | - Xiao-Qing Zeng
- State Intellectual Property Office of the People's Republic of China, Beijing, 100080, China
| | - Lu-Yao Huang
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
| | - Bo Dong
- State Key Laboratory of Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China
| | - Zhen-Zhu Su
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China.,Agricultural Technology Extension Center, Zhejiang University, Hangzhou, 310058, China
| | - Yao Wang
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Fu-Cheng Lin
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
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Chen YP, Zhu WF, Lin JY, He TM, Ma HM, Lu JP, Ye XA, Xu CW, Chen G. [Expression of PDGFRA and CMYC in extranodal NK/T-cell lymphoma and their prognostic implications]. Zhonghua Bing Li Xue Za Zhi 2016; 45:825-830. [PMID: 28056296 DOI: 10.3760/cma.j.issn.0529-5807.2016.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the relationship between expression of PDGFRA/CMYC and clinicopathologic features of extranodal NK/T-cell lymphoma. Methods: Fifty-four cases of extranodal NK/T-cell lymphoma were included in the study.Immunohistochemistry was used to detect the expression of CD20, CD2, CD3, CD56, TIA1, GrB, Ki-67, PDGFRA and CMYC.In situ hybridization was performed to detect the presence of EBV encoded small RNA (EBER). Fifty cases of nasopharyngeal mucosal lymphoid tissue hyperplasia were used as normal control. Results: Among 54 cases of ENKTL, CD2, CD3, GrB, and TIA1 were expressed in all the tumors. CD56 was expressed in 47 cases (81.0%) and CD20 was not detectable in any cases. Ki-67 proliferative index expression of > 60% was found in 45 cases (83.3%). In situ hybridization for EBER was positive in all cases (100%). The positive expression rates of PDGFRA and CMYC in extranodal NK/T-cell lymphomas were 51.9%(28/54) and 53.7%(29/54), respectively, much higher than those in nasopharyngeal mucosal lymphoid tissue hyperplasia (0, P<0.05). There was a positive correlation between PDGFRA and CMYC (r=0.295, P<0.05). The expression of CMYC was correlated with clinical efficacy (P<0.05), but not with gender, age, Ann Arbor stage, B symptoms and therapeutic regimen (all P>0.05). The expression of PDGFRA was correlated with B symptoms (P<0.05), while not with gender, age, Ann Arbor stage, therapeutic regimen and clinical efficacy (all P>0.05). The co-expression of PDGFRA and CMYC was not correlated with gender, age, Ann Arbor stage, B symptoms, therapeutic regimen and clinical efficacy (P>0.05). Univariate analysis showed that the stage, clinical efficacy, CMYC protein and the co-expression of PDGFRA and CMYC were significantly correlated with the prognosis. The overall survival of the patients with CMYC positive expression was shorter than of that of the patients with negative expression (P<0.05). Multivariable Cox regression analysis further confirmed that clinical stage, CMYC protein expression, and the co-expression of PDGFRA and CMYC were independent prognostic factors in patients with extranodal NK/T-cell lymphoma. Conclusion: CMYC protein, and the co-expression of PDGFRA and CMYC can be as an independent prognostic factor in patients with extranodal NK/T-cell lymphoma and influence the prognosis of patients.
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Affiliation(s)
- Y P Chen
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
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Shi HB, Chen GQ, Chen YP, Dong B, Lu JP, Liu XH, Lin FC. MoRad6-mediated ubiquitination pathways are essential for development and pathogenicity in Magnaporthe oryzae. Environ Microbiol 2016; 18:4170-4187. [PMID: 27581713 DOI: 10.1111/1462-2920.13515] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 08/28/2016] [Indexed: 01/19/2023]
Abstract
The ubiquitin system modulates protein functions through targeting substrates for ubiquitination. Here, E2 conjugating enzyme MoRad6-related ubiquitination pathways are identified and analyzed in Magnaporthe oryzae, the causal agent of rice blast disease. Disruption of MoRad6 leads to severe defects in growth, sporulation, conidial germination, appressorium formation, and plant infection. To depict the functions of MoRad6, three putative ubiquitin ligases, MoRad18, MoBre1 and MoUbr1, are also characterized. Deletion of MoRad18 causes minor phenotypic changes, while MoBre1 is required for growth, conidiation and pathogenicity in M. oryzae. Defects in ΔMobre1 likely resulted from the reduction in di- and tri-methylation level of Histone 3 lysine 4 (H3K4). Notably, MoUbr1 is crucial for conidial adhesion and germination, possibly by degrading components of cAMP/PKA and mitogen-activated protein kinase (MAPK) Pmk1 signaling pathways via the N-end rule pathway. Germination failure of ΔMoubr1 conidia could be rescued by elevation of cAMP level or enhanced Pmk1 phosphorylation resulting from further deletion of MoIra1, the M. oryzae homolog of yeast Ira1/2. These reveal vital effects of cAMP/PKA and MAPK Pmk1 signaling on conidial germination in M. oryzae. Altogether, our results suggest that MoRad6-mediated ubiquitination pathways are essential for the infection-related development and pathogenicity of M. oryzae.
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Affiliation(s)
- Huan-Bin Shi
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
| | - Guo-Qing Chen
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Ya-Ping Chen
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
| | - Bo Dong
- Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Science, Hangzhou, 310021, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiao-Hong Liu
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
| | - Fu-Cheng Lin
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, 310058, China
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Liu N, Ning GA, Liu XH, Feng XX, Lu JP, Mao LJ, Su ZZ, Wang Y, Zhang CL, Lin FC. An autophagy gene, HoATG5, is involved in sporulation, cell wall integrity and infection of wounded barley leaves. Microbiol Res 2016; 192:326-335. [PMID: 27664751 DOI: 10.1016/j.micres.2016.08.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 03/25/2016] [Revised: 06/27/2016] [Accepted: 08/06/2016] [Indexed: 01/07/2023]
Abstract
The endophytic fungus Harpophora oryzae is a beneficial endosymbiont isolated from wild rice. H. oryzae can not only promote rice growth and biomass accumulation but also protect rice roots from invasion by its close relative Magnaporthe oryzae. Autophagy is a highly evolutionary conserved process from lower to higher eukaryotic organisms, and is involved in the maintenance of normal cell differentiation and development. In this study, we isolated a gene (HoATG5) which encodes an essential protein required for autophagy from the beneficial endophyte fungus H. oryzae. Using targeted gene replacement, a ΔHoATG5 mutant was generated and used to investigate the biological functions of autophagy in H. oryzae. We found that the autophagic process was blocked in the HoATG5 deletion mutant. The mutant showed increased vegetative growth and sporulation, and was sensitive to nutrient starvation. The ΔHoATG5 mutant lost its ability to penetrate and infect the wounded barley leaves. These results provide new knowledge to elaborate the molecular machinery of autophagy in endophytic fungi.
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Affiliation(s)
- Ning Liu
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Guo-Ao Ning
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xiao-Hong Liu
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xiao-Xiao Feng
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Li-Juan Mao
- Analysis Center of Agrobiology and Environmental Science, Zhejiang University, Hangzhou, China
| | - Zhen-Zhu Su
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China; Agricultural Technology Extension Center, Zhejiang University, Hangzhou, 310058, China
| | - Ying Wang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201106, China
| | - Chu-Long Zhang
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China.
| | - Fu-Cheng Lin
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China.
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Liu XH, Ning GA, Huang LY, Zhao YH, Dong B, Lu JP, Lin FC. Calpains are involved in asexual and sexual development, cell wall integrity and pathogenicity of the rice blast fungus. Sci Rep 2016; 6:31204. [PMID: 27502542 PMCID: PMC4977516 DOI: 10.1038/srep31204] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 07/14/2016] [Indexed: 01/03/2023] Open
Abstract
Calpains are ubiquitous and well-conserved proteins that belong to the calcium-dependent, non-lysosomal cysteine protease family. In this study, 8 putative calpains were identified using Pfam domain analysis and BlastP searches in M. oryzae. Three single gene deletion mutants (ΔMocapn7, ΔMocapn9 and ΔMocapn14) and two double gene deletion mutants (ΔMocapn4ΔMocapn7 and ΔMocapn9ΔMocapn7) were obtained using the high-throughput gene knockout system. The calpain disruption mutants showed defects in colony characteristics, conidiation, sexual reproduction and cell wall integrity. The mycelia of the ΔMocapn7, ΔMocapn4ΔMocapn7 and ΔMocapn9ΔMocapn7 mutants showed reduced pathogenicity on rice and barley.
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Affiliation(s)
- Xiao-Hong Liu
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Guo-Ao Ning
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Lu-Yao Huang
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Ya-Hui Zhao
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Bo Dong
- State Key Laboratory of Breeding Base for Zhejiang Sustainable Pest and Disease Control, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang Province, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
| | - Fu-Cheng Lin
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
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Chen YP, Jiang XN, Lu JP, Zhang H, Li XQ, Chen G. [Clinicopathologic analysis of extranodal Rosai-Dorfman disease of breast: a report of 12 cases]. Zhonghua Bing Li Xue Za Zhi 2016; 45:556-60. [PMID: 27510782 DOI: 10.3760/cma.j.issn.0529-5807.2016.08.012] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the clinicopathologic features, diagnosis and differential diagnosis of extranodal Rosai-Dorfman disease(RDD)of the breast. METHODS Twelve cases of extranodal RDD of the breast were analyzed using hematoxylin-eosin stain and immunohistochemical staining.The morphological features and immunophenotype were observed by light microscopy, accompanied with a review of the literature. RESULTS Twelve cases of extranodal RDD of the breast are presented. The patients were women and their ages ranged from 15 to 55 years (mean =37 years). Except one patient with involvement of the right breast and ipsilateral axillary lymph nodes, other eleven patients' disease confined to the breast. Seven cases located in the right breast, the other five cases in the left breast. Microscopically, it showed a typical morphology, characterized by diffuse infiltration of large histiocytes, lymphocytes and plasmocytes that formed irregular nodular structure with light and dark appearance under microscope. Spindling of histiocytosis often arranged in a vague storiform with prominent fibrosis, accumulation of foamy histiocytes and scattered atypical nuclei. The characteristic histocytes and emperipolesis could not be seen obviously in extranodal RDD of the breast.Immunohistochemical staining showed histocytes were strongly positive for S-100 protein, CD68 and CD163, while negative for CD1a. CONCLUSIONS Extranodal RDD of the breast is very rare. Because of unconspicuous emperipolesis and lack of specificity in clinic and images, extranodal RDD of the breast is easy to be misdiagnosed as other histiocytosis. The microscopic differential diagnosis includes idiopathic granulomatous mastitis, infective granulomas, langerhans cell histiocytosis, IgG4 related sclerosing disease, Erdheim-Chester disease, benign fibrous histiocytoma, malignant fibrous histiocytoma and Hodgkin Lymphoma. Light and dark appearance under microscope is the important clue in diagnosis of extranodal RDD in breast. Immunohistochemistry is also helpful.
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Affiliation(s)
- Y P Chen
- Department of Pathology, Fujian Provincial Cancer Hospital, Teaching Hospital of Fujian Medical University, Fuzhou 350014, China
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Zhang XY, Shan QJ, Su YG, Yan J, Bao ZH, Gu X, Qiu JP, Qin SM, Xu J, Su H, Zhu H, Guo JF, Lu JP, Zou JG, Chen ML, Xu D, Cao KJ. [Efficacy of biventricular pacing on preventing heart failure in patients with high degree atrioventricular block (BIVPACE-AVB Trial)]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:331-7. [PMID: 27112612 DOI: 10.3760/cma.j.issn.0253-3758.2016.04.011] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the long-term effect of biventricular (BIV) and right ventricular apical (RVA) pacing on cardiac function in patients with high-degree atrioventricular block (AVB) and left ventricular ejection fraction(LVEF)over 35%. METHODS A total of 118 consecutive patients with high-degree AVB in six hospitals from East China between May 2009 and December 2012 were enrolled in this randomized, double-blind and parallel controlled study. Patients were randomly assigned to BIV and RVA pacing with or without LV lead on after one-week cardiac resynchronization therapy (CRT). Cardiac function including New York Heart Association(NYHA), 6 minute walking distance (6MWD), Minnesota living with heart failure (MLHF) score, LVEF, left ventricular end-diastolic volumes/diameters (LVEDV/LVEDD) and other echocardiography parameters, as well as N-terminal pro-B-type natriuretic peptide (NT-proBNP)were assessed at 6 months and 12 months. RESULTS A total of 114 patients were successfully implanted with CRT. Cardiac function was significantly improved after one-week BIV pacing (n=57) compared with pre-CRT: rate of patients with NYHA Ⅲ (25.44%(29/114) vs. 9.65%(11/114)), MLHF score (17.1±13.6 vs. 26.9±21.6), 6MWD ((315.4±121.8)m vs. (291.8±102.9)m) and NT-proBNP (157.0(70.0, 639.0) ng/L vs. 444.7(144.0, 1 546.0)ng/L, all P<0.05). In BIV group, 6MWD extended from (314.8±142.7)m to (332.7±117.5)m at 6 months (P<0.05), LVEF increased from (60.7±7.9)% at 1 week to (56.6±10.7)% at 6 months(P<0.05), both LVEDV and LVEDD decreased at 12 months compared with at 1 week ((116.2±39.5)ml vs. (131.4±49.6)ml and (50.2±5.6)mm vs. (52.5±6.8)mm, P<0.05). In RVA group (n=57), 6MWD increased at 6 months compared that at 1week ((342.4±109.9)m vs. (310.2±105.1)m, P<0.05), NT-proBNP was higher at 12 months than that at 1 week (349.5(191.8, 884.3)ng/L vs. 127.0(70.3, 336.7)ng/L, P<0.05). Compared with RVA group, BIV group had a bigger shrink in LVEDV decrease at 12 months was more significant in BIV group ((-16.68±24.30)ml vs. (9.09±29.30)ml, P<0.05). CONCLUSIONS Cardiac pacing could acutely improve the cardiac function in patients with high-degree AVB and LVEF over 35%. Improvements on cardiac function and remodeling are more significant after 12-month BIV pacing than that of RVA pacing. Clinical Trail Registry: Chinese Clinical Trial Registry, ChiCTR-TRC-10000832.
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Affiliation(s)
- X Y Zhang
- Department of Cardiology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Liu XH, Xu F, Snyder JH, Shi HB, Lu JP, Lin FC. Autophagy in plant pathogenic fungi. Semin Cell Dev Biol 2016; 57:128-137. [PMID: 27072489 DOI: 10.1016/j.semcdb.2016.03.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 03/24/2016] [Accepted: 03/29/2016] [Indexed: 11/25/2022]
Abstract
Autophagy is a conserved cellular process that degrades cytoplasmic constituents in vacuoles. Plant pathogenic fungi develop special infection structures and/or secrete a range of enzymes to invade their plant hosts. It has been demonstrated that monitoring autophagy processes can be extremely useful in visualizing the sequence of events leading to pathogenicity of plant pathogenic fungi. In this review, we introduce the molecular mechanisms involved in autophagy. In addition, we explore the relationship between autophagy and pathogenicity in plant pathogenic fungi. Finally, we discuss the various experimental strategies available for use in the study of autophagy in plant pathogenic fungi.
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Affiliation(s)
- Xiao-Hong Liu
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, China
| | - Fei Xu
- Institute of Digital Agriculture, Zhejiang Academy of Agricultural Science, Hangzhou, China
| | - John Hugh Snyder
- Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Huan-Bin Shi
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Fu-Cheng Lin
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, China.
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Liu N, Chen GQ, Ning GA, Shi HB, Zhang CL, Lu JP, Mao LJ, Feng XX, Liu XH, Su ZZ, Lin FC. Agrobacterium tumefaciens-mediated transformation: An efficient tool for insertional mutagenesis and targeted gene disruption in Harpophora oryzae. Microbiol Res 2015; 182:40-8. [PMID: 26686612 DOI: 10.1016/j.micres.2015.09.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 09/22/2015] [Accepted: 09/28/2015] [Indexed: 12/01/2022]
Abstract
The endophytic filamentous fungus Harpophora oryzae is a beneficial endosymbiont isolated from the wild rice. H. oryzae could not only effectively improve growth rate and biomass yield of rice crops, but also induce systemic resistance against the rice blast fungus, Magnaporthe oryzae. In this study, Agrobacterium tumefaciens-mediated transformation (ATMT) was employed and optimized to modify the H. oryzae genes by either random DNA fragment integration or targeted gene replacement. Our results showed that co-cultivation of H. oryzae conidia with A. tumefaciens in the presence of acetosyringone for 48 h at 22 °C could lead to a relatively highest frequency of transformation, and 200 μM acetosyringone (AS) pre-cultivation of A. tumefaciens is also suggested. ATMT-mediated knockout mutagenesis was accomplished with the gene-deletion cassettes using a yeast homologous recombination method with a yeast-Escherichia-Agrobacterium shuttle vector pKOHo. Using the ATMT-mediated knockout mutagenesis, we successfully deleted three genes of H. oryzae (HoATG5, HoATG7, and HoATG8), and then got the null mutants ΔHoatg5, ΔHoatg7, and ΔHoatg8. These results suggest that ATMT is an efficient tool for gene modification including randomly insertional mutagenesis and gene deletion mutagenesis in H. oryzae.
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Affiliation(s)
- Ning Liu
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Guo-Qing Chen
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Guo-Ao Ning
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Huan-Bin Shi
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Chu-Long Zhang
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Jian-Ping Lu
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Li-Juan Mao
- Analysis Center of Agrobiology and Environmental Science, Zhejiang University, Hangzhou, China
| | - Xiao-Xiao Feng
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Xiao-Hong Liu
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Zhen-Zhu Su
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China.
| | - Fu-Cheng Lin
- State Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China; China Tobacco Gene Research Center, Zhengzhou Tobacco Institute of CNTC, Zhengzhou, China.
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Ma C, Liu L, Li J, Wang L, Chen LG, Zhang Y, Chen SY, Lu JP. Apparent diffusion coefficient (ADC) measurements in pancreatic adenocarcinoma: A preliminary study of the effect of region of interest on ADC values and interobserver variability. J Magn Reson Imaging 2015; 43:407-13. [PMID: 26182908 DOI: 10.1002/jmri.25007] [Citation(s) in RCA: 39] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 06/30/2015] [Accepted: 06/30/2015] [Indexed: 12/13/2022] Open
Abstract
PURPOSE To assess the influence of region of interest (ROI) on tumor apparent diffusion coefficient (ADC) measurements and interobserver variability in pancreatic ductal adenocarcinoma (PDAC). MATERIALS AND METHODS Twenty-two patients recruited with pathology-proven PDAC underwent diffusion-weighted imaging (DWI, 3.0T) prior to the surgical resection. Two independent readers measured tumor ADCs according to three ROI methods: whole-volume, single-slice, and small solid sample of tumor. Minimum and mean ADCs were obtained. The interobserver variability for each of the three methods was analyzed using interclass correlation coefficient (ICC) and Bland-Altman analysis. The minimum and mean ADCs among the ROI methods were compared using nonparametric tests. RESULTS The single-slice ROI method showed the best reproducibility in the minimum ADC measurements (mean difference ± limits of agreement between two readers were 0.025 ± 0.25 × 10(-3) mm2 /s; ICC, 0.92) among the three ROI methods. For the solid tumor sample ROI, both minimum ADC and mean ADC measurements reproducibility were the worst, with limits of agreement up to ±0.50 × 10(-3) mm2 /s and ±0.32 × 10(-3) mm2 /s, respectively (ICCs, 0.41/0.58). Both the minimum and mean ADCs demonstrated significant differences among the three ROI methods (both P < 0.001). The post-hoc analyses results showed no significant difference with regard to the mean ADCs between whole-volume and single-slice ROI methods (P = 0.14). CONCLUSION The ROI method had a considerable influence on both the minimum and mean ADC values and the interobserver variability in PDAC. The worst interobserver variability was observed for both the minimum and mean ADCs derived from small solid-sample ROI.
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Affiliation(s)
- Chao Ma
- Department of Radiology, Changhai Hospital of Shanghai, Second Military Medical University, Shanghai, China
| | - Li Liu
- Department of Radiology, Changhai Hospital of Shanghai, Second Military Medical University, Shanghai, China
| | - Jing Li
- Department of Radiology, Changhai Hospital of Shanghai, Second Military Medical University, Shanghai, China
| | - Li Wang
- Department of Radiology, Changhai Hospital of Shanghai, Second Military Medical University, Shanghai, China
| | - Lu-Guang Chen
- Department of Radiology, Changhai Hospital of Shanghai, Second Military Medical University, Shanghai, China
| | - Yong Zhang
- GE Healthcare, MR Group, Shanghai, China
| | - Shi-Yue Chen
- Department of Radiology, Changhai Hospital of Shanghai, Second Military Medical University, Shanghai, China
| | - Jian-Ping Lu
- Department of Radiology, Changhai Hospital of Shanghai, Second Military Medical University, Shanghai, China
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Bian Y, Yang XD, Wang L, Lu JP. Imaging diagnosis of sclerosing cholangitis. Shijie Huaren Xiaohua Zazhi 2015; 23:3157-3162. [DOI: 10.11569/wcjd.v23.i19.3157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To explore the diagnostic value of imaging in sclerosing cholangitis (SC).
METHODS: A total of 34 SC patients after endoscopic retrograde cholangiography (ERCP) and common bile duct exploration were included. The clinical data and imaging findings were retrospectively reviewed. The images were independently recorded by two radiologists in a blinded, randomized manner for the imaging features of the biliary system, the liver and other-related signs.
RESULTS: Six patients had primary sclerosing cholangitis (PSC), and 28 patients had secondary sclerosing cholangitis (SSC). Bile duct obstruction, microbial infection and IgG4-related SC were seen in 20, 1 and 7 patients, respectively. PSC showed thickening of the intrahepatic and extrahepatic bile duct walls, and focal and segmental strictures. Pruned-tree and diverticulum-like appearances were more frequent in PSC. SSC showed thickening of the extrahepatic bile duct wall, and focal, segmental and long strictures. Beaded and pruned-tree appearances were more frequent in SSC. The bile duct wall enhancement was found in SC. The hepatic perfusion disorder was found in the arterial phase in SC. There was liver cirrhosis in patients with advanced stage disease. IgG4-related SC mainly showed extrahepatic bile duct stenosis with autoimmune pancreatitis.
CONCLUSION: SC has some radiological characteristics. A correct diagnosis can be made by imaging combined with clinical data in the majority of patients.
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Liu TB, Liu XH, Lu JP, Zhang L, Min H, Lin FC. The cysteine protease MoAtg4 interacts with MoAtg8 and is required for differentiation and pathogenesis inMagnaporthe oryzae. Autophagy 2014; 6:74-85. [DOI: 10.4161/auto.6.1.10438] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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