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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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3
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Li L, Zhu XM, Bao JD, Wang JY, Liu XH, Lin FC. The cell cycle, autophagy, and cell wall integrity pathway jointly governed by MoSwe1 in Magnaporthe oryzae. Cell Commun Signal 2024; 22:19. [PMID: 38195499 PMCID: PMC10775494 DOI: 10.1186/s12964-023-01389-6] [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: 08/10/2023] [Accepted: 11/06/2023] [Indexed: 01/11/2024] Open
Abstract
The cell cycle is pivotal to cellular differentiation in plant pathogenic fungi. Cell wall integrity (CWI) signaling plays an essential role in coping with cell wall stress. Autophagy is a degradation process in which cells decompose their components to recover macromolecules and provide energy under stress conditions. However, the specific association between cell cycle, autophagy and CWI pathway remains unclear in model pathogenic fungi Magnaporthe oryzae. Here, we have identified MoSwe1 as the conserved component of the cell cycle in the rice blast fungus. We have found that MoSwe1 targets MoMps1, a conserved critical MAP kinase of the CWI pathway, through protein phosphorylation that positively regulates CWI signaling. The CWI pathway is abnormal in the ΔMoswe1 mutant with cell cycle arrest. In addition, we provided evidence that MoSwe1 positively regulates autophagy by interacting with MoAtg17 and MoAtg18, the core autophagy proteins. Moreover, the S phase initiation was earlier, the morphology of conidia and appressoria was abnormal, and septum formation and glycogen degradation were impaired in the ΔMoswe1 mutant. Our research defines that MoSWE1 regulation of G1/S transition, CWI pathway, and autophagy supports its specific requirement for appressorium development and virulence in plant pathogenic fungi. Video Abstract.
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Affiliation(s)
- 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
| | - 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-Dong Bao
- 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
| | - Jiao-Yu Wang
- 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
- 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 Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
- Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China.
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Wei YY, Liang S, Zhu XM, Liu XH, Lin FC. Recent Advances in Effector Research of Magnaporthe oryzae. Biomolecules 2023; 13:1650. [PMID: 38002332 PMCID: PMC10669146 DOI: 10.3390/biom13111650] [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: 09/28/2023] [Revised: 11/09/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Recalcitrant rice blast disease is caused by Magnaporthe oryzae, which has a significant negative economic reverberation on crop productivity. In order to induce the disease onto the host, M. oryzae positively generates many types of small secreted proteins, here named as effectors, to manipulate the host cell for the purpose of stimulating pathogenic infection. In M. oryzae, by engaging with specific receptors on the cell surface, effectors activate signaling channels which control an array of cellular activities, such as proliferation, differentiation and apoptosis. The most recent research on effector identification, classification, function, secretion, and control mechanism has been compiled in this review. In addition, the article also discusses directions and challenges for future research into an effector in M. oryzae.
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Affiliation(s)
- Yun-Yun Wei
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China;
| | - Shuang Liang
- 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; (S.L.); (X.-M.Z.)
| | - 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; (S.L.); (X.-M.Z.)
| | - Xiao-Hong Liu
- Laboratory of Rice Biology, 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 Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (S.L.); (X.-M.Z.)
- Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
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Zhu XM, Li L, Bao JD, Wang JY, Daskalov A, Liu XH, Del Poeta M, Lin FC. The biological functions of sphingolipids in plant pathogenic fungi. PLoS Pathog 2023; 19:e1011733. [PMID: 37943805 PMCID: PMC10635517 DOI: 10.1371/journal.ppat.1011733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023] Open
Abstract
Sphingolipids are critically significant in a range of biological processes in animals, plants, and fungi. In mammalian cells, they serve as vital components of the plasma membrane (PM) in maintaining its structure, tension, and fluidity. They also play a key role in a wide variety of biological processes, such as intracellular signal transduction, cell polarization, differentiation, and migration. In plants, sphingolipids are important for cell development and for cell response to environmental stresses. In pathogenic fungi, sphingolipids are crucial for the initiation and the development of infection processes afflicting humans. However, our knowledge on the metabolism and function of the sphingolipid metabolic pathway of pathogenic fungi affecting plants is still very limited. In this review, we discuss recent developments on sphingolipid pathways of plant pathogenic fungi, highlighting their uniqueness and similarity with plants and animals. In addition, we discuss recent advances in the research and development of fungal-targeted inhibitors of the sphingolipid pathway, to gain insights on how we can better control the infection process occurring in plants to prevent or/and to treat fungal infections in crops.
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Affiliation(s)
- 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
| | - 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
| | - Jian-Dong Bao
- 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
| | - Jiao-Yu Wang
- 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
| | - Asen Daskalov
- 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 of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Maurizio Del Poeta
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, New York, United States of America
- Division of Infectious Diseases, Stony Brook University, Stony Brook, New York, United States of America
- Veterans Affairs Medical Center, Northport, New York, United States of America
| | - 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 of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
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Zheng K, Jin L, Shen F, Gao XH, Zhu XM, Yu GY, Hao LQ, Lou Z, Wang H, Yu ED, Bai CG, Zhang W. [The impact of extended waiting time on tumor regression after neoadjuvant chemoradiotherapy for locally advanced rectal cancer]. Zhonghua Wai Ke Za Zhi 2023; 61:775-781. [PMID: 37491170 DOI: 10.3760/cma.j.cn112139-20230404-00139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Objective: To investigate the influence of extending the waiting time on tumor regression after neoadjuvant chemoradiology (nCRT) in patients with locally advanced rectal cancer (LARC). Methods: Clinicopathological data from 728 LARC patients who completed nCRT treatment at the First Affiliated Hospital, Naval Medical University from January 2012 to December 2021 were collected for retrospective analysis. The primary research endpoint was the sustained complete response (SCR). There were 498 males and 230 females, with an age (M(IQR)) of 58 (15) years (range: 22 to 89 years). Logistic regression models were used to explore whether waiting time was an independent factor affecting SCR. Curve fitting was used to represent the relationship between the cumulative occurrence rate of SCR and the waiting time. The patients were divided into a conventional waiting time group (4 to <12 weeks, n=581) and an extended waiting time group (12 to<20 weeks, n=147). Comparisons regarding tumor regression, organ preservation, and surgical conditions between the two groups were made using the t test, Wilcoxon rank sum test, or χ2 test as appropriate. The Log-rank test was used to elucidate the survival discrepancies between the two groups. Results: The SCR rate of all patients was 21.6% (157/728). The waiting time was an independent influencing factor for SCR, with each additional day corresponding to an OR value of 1.010 (95%CI: 1.001 to 1.020, P=0.031). The cumulative rate of SCR occurrence gradually increased with the extension of waiting time, with the fastest increase between the 10th week. The SCR rate in the extended waiting time group was higher (27.9%(41/147) vs. 20.0%(116/581), χ2=3.901, P=0.048), and the organ preservation rate during the follow-up period was higher (21.1%(31/147) vs. 10.7%(62/581), χ2=10.510, P=0.001). The 3-year local recurrence/regrowth-free survival rates were 94.0% and 91.1%, the 3-year disease-free survival rates were 76.6% and 75.4%, and the 3-year overall survival rates were 95.6% and 92.2% for the conventional and extended waiting time groups, respectively, with no statistical differences in local recurrence/regrowth-free survival, disease-free survival and overall survival between the two groups (χ2=1.878, P=0.171; χ2=0.078, P=0.780; χ2=1.265, P=0.261). Conclusions: An extended waiting time is conducive to tumor regression, and extending the waiting time to 12 to <20 weeks after nCRT can improve the SCR rate and organ preservation rate, without increasing the difficulty of surgery or altering the oncological outcomes of patients.
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Affiliation(s)
- K Zheng
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - L Jin
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - F Shen
- Department of Radiology, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - X H Gao
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - X M Zhu
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - G Y Yu
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - L Q Hao
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - Z Lou
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - H Wang
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - E D Yu
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - C G Bai
- Department of Pathology, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - W Zhang
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
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7
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Zhang W, Zhu XM. [Reappraisal of the lateral mesorectum and its clinical importance]. Zhonghua Wai Ke Za Zhi 2023; 61:733-737. [PMID: 37491163 DOI: 10.3760/cma.j.cn112139-20230404-00140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
The mesentery has been defined as a double fold of the peritoneum connecting some regions of the intestine to the posterior abdominal wall. It emerges from the superior mesenteric root region and fans out to span the intestine from the duodenum to the rectum. The mesorectal is a continuation of the intraperitoneal mesentery in the pelvic cavity. The lateral structure of the rectum is complex and the traditional view calls it the lateral ligament of the rectal. However, this structure could be called the lateral mesorectum from the perspective of embryonic development and membrane anatomy. The lateral mesorectum is the bridge of the vessels, lymphatic, and nerves between the rectum and the pelvic wall. It anchors the rectum to the lateral pelvic wall and is the anatomical basis of lateral lymph node metastasis in low rectal cancer. Meanwhile, it is important to identify the lateral mesorectum and its surrounding structure to radically resect the tumor and protect the pelvic autonomic nerve during the total mesorectal excision procedure.
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Affiliation(s)
- W Zhang
- Department of Colorectal Surgery, First Affiliated Hospital of the Navy Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - X M Zhu
- Department of Colorectal Surgery, First Affiliated Hospital of the Navy Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
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Zhu XM, Wang HT, Xue S, Xue HW, Lu QY, Chen G, Wang PS. [Comparison of clinical effects of endoscopic thyroidectomy using the modified gasless transsubclavian approach and traditional open surgery for cN0 unilateral papillary thyroid carcinoma]. Zhonghua Wai Ke Za Zhi 2023; 61:807-811. [PMID: 37491175 DOI: 10.3760/cma.j.cn112139-20230208-00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Objective: To compare the clinical effects of endoscopic thyroidectomy using a modified gasless transsubclavian approach and the traditional neck approach for unilateral papillary thyroid carcinoma (cN0). Methods: The clinical data of 135 patients with cN0 papillary thyroid carcinoma who underwent unilateral thyroidectomy in the Department of Thyroid Surgery, the First Hospital of Jilin University from October 2020 to November 2022 were retrospectively analyzed. There were 37 males and 98 females, aging (43.2±8.8) years (range: 21 to 59 years). There were 51 cases using the modified gasless transsubclavian approach (TS group) and 84 cases using the traditional neck approach (TN group). Comparative analyses were performed between the operative results of the 2 groups by t-test, Wilcoxon rank sum test, and χ2 test. Results: All endoscopic operations were successfully completed without conversion to the traditional neck approach. Compared to the TN group, the TS group had a longer operation time (M(IQR)) (73.5 (22.5) minutes vs. 90.0 (30.0) minutes, Z=-5.831, P<0.01), more postoperative drainage (60 (25) ml vs. 95 (45) ml, Z=-6.275, P<0.01), higher hospitalization costs (22 687 (3 488) yuan vs. 26 652 (2 431) yuan, Z=-6.944, P<0.01), and a higher rate of parathyroid autotransplantation (15.5% (13/84) vs. 60.8% (31/51), χ2=29.651, P<0.01). There was no significant difference in the total exposure rate of the central compartment, postoperative hospitalization time, the number of dissected lymph nodes, the number of metastatic lymph nodes, C-reactive protein ratio before and after operation, and preoperative and postoperative parathyroid hormone (all P>0.05). Conclusion: Endoscopic thyroidectomy using the modified gasless transsubclavian approach is safe for cN0 papillary thyroid carcinoma, with longer operating time, more postoperative drainage, higher hospitalization costs, and more difficulty in preserving the inferior parathyroid gland in situ compared to traditional open surgery.
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Affiliation(s)
- X M Zhu
- Department of Thyroid Surgery, General Surgery Center, the First Hospital of Jilin University, Changchun 130021, China
| | - H T Wang
- Department of Critical Care Medcine, the First Hospital of Jilin University, Changchun 130021, China
| | - S Xue
- Department of Thyroid Surgery, General Surgery Center, the First Hospital of Jilin University, Changchun 130021, China
| | - H W Xue
- Department of Thyroid Surgery, General Surgery Center, the First Hospital of Jilin University, Changchun 130021, China
| | - Q Y Lu
- Department of Thyroid Surgery, General Surgery Center, the First Hospital of Jilin University, Changchun 130021, China
| | - G Chen
- Department of Thyroid Surgery, General Surgery Center, the First Hospital of Jilin University, Changchun 130021, China
| | - P S Wang
- Department of Thyroid Surgery, General Surgery Center, the First Hospital of Jilin University, Changchun 130021, China
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Zhu XM, Li L, Bao JD, Wang JY, Liang S, Zhao LL, Huang CL, Yan JY, Cai YY, Wu XY, Dong B, Liu XH, Klionsky DJ, Lin FC. MoVast2 combined with MoVast1 regulates lipid homeostasis and autophagy in Magnaporthe oryzae. Autophagy 2023; 19:2353-2371. [PMID: 36803211 PMCID: PMC10351449 DOI: 10.1080/15548627.2023.2181739] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 09/27/2022] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/22/2023] Open
Abstract
Macroautophagy/autophagy is an evolutionarily conserved biological process among eukaryotes that degrades unwanted materials such as protein aggregates, damaged mitochondria and even viruses to maintain cell survival. Our previous studies have demonstrated that MoVast1 acts as an autophagy regulator regulating autophagy, membrane tension, and sterol homeostasis in rice blast fungus. However, the detailed regulatory relationships between autophagy and VASt domain proteins remain unsolved. Here, we identified another VASt domain-containing protein, MoVast2, and further uncovered the regulatory mechanism of MoVast2 in M. oryzae. MoVast2 interacted with MoVast1 and MoAtg8, and colocalized at the PAS and deletion of MoVAST2 results in inappropriate autophagy progress. Through TOR activity analysis, sterols and sphingolipid content detection, we found high sterol accumulation in the ΔMovast2 mutant, whereas this mutant showed low sphingolipids and low activity of both TORC1 and TORC2. In addition, MoVast2 colocalized with MoVast1. The localization of MoVast2 in the MoVAST1 deletion mutant was normal; however, deletion of MoVAST2 leads to mislocalization of MoVast1. Notably, the wide-target lipidomic analyses revealed significant changes in sterols and sphingolipids, the major PM components, in the ΔMovast2 mutant, which was involved in lipid metabolism and autophagic pathways. These findings confirmed that the functions of MoVast1 were regulated by MoVast2, revealing that MoVast2 combined with MoVast1 maintained lipid homeostasis and autophagy balance by regulating TOR activity in M. oryzae.
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Affiliation(s)
- 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, Zhejiang, 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, Zhejiang, China
| | - Jian-Dong Bao
- 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, Zhejiang, China
| | - Jiao-Yu Wang
- 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, Zhejiang, China
| | - Shuang Liang
- 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, Zhejiang, China
| | - Li-Li Zhao
- 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, Zhejiang, China
| | - Chang-Li Huang
- 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, Zhejiang, China
| | - Jiong-Yi Yan
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ying-Ying Cai
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xi-Yu Wu
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
| | - Bo Dong
- Markey Cancer Center, University of Kentucky, College of Medicine, Lexington, KY, USA
| | - Xiao-Hong Liu
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
| | - Daniel J. Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - 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, Zhejiang, China
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
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10
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Zhang W, Zhu XM. [Techniques and classification of intersphincteric resection for ultra-low rectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:557-561. [PMID: 37583009 DOI: 10.3760/cma.j.cn441530-20230603-00191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
ISR is the most widely used anal-preserving operation for ultra-low rectal cancer. It can be divided into total ISR, subtotal ISR and partial ISR according to the resection range of internal sphincter. The advantage of ISR is that it can preserve the sphincter while ensuring the safety of oncology for ultra-low rectal cancer, representing the state of the art. However, it still needs to face the problem that the quality of life will decline due to poor postoperative anal function. The conformal sphincter-preserving operation (CSPO) is a functional anal-preserving surgery improved on the basis of ISR. It is superior to ISR in the postoperative anal function and patients' quality of life. So it can be a new choice for ultra-low rectal cancer.
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Affiliation(s)
- W Zhang
- Department of Colorectal Surgery, Changhai Hospital, The Navy Medical University, Shanghai 200433, China
| | - X M Zhu
- Department of Colorectal Surgery, Changhai Hospital, The Navy Medical University, Shanghai 200433, China
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11
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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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12
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Chen RY, Li XZ, Lin Q, Tang HY, Cui NX, Jiang L, Dai XM, Chen WQ, Deng F, Hu SY, Zhu XM. Pathological evaluation of renal complications in children following allogeneic hematopoietic stem cell transplantation: a retrospective cohort study. BMC Pediatr 2023; 23:186. [PMID: 37085779 PMCID: PMC10120150 DOI: 10.1186/s12887-023-03996-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 04/06/2023] [Indexed: 04/23/2023] Open
Abstract
BACKGROUND Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a curative therapy for hematologic malignancies and non-malignant disorders, such as aplastic anemia, fanconi anemia, and certain immune deficiencies. Post-transplantation kidney injury is a common complication and involves a wide spectrum of structural abnormalities, including glomerular (MSPGN, mesangial proliferative glomerulonephritis; FSGS, focal segmental glomerulosclerosis; MPGN, membranoproliferative glomerulonephritis; MCD, minimal change disease), vascular (TMA, thrombotic microangiopathy), and/or tubulointerstitial (TIN, tubulointerstitial nephritis; ATI, acute tubular injury). Renal biopsy is the gold-standard examination for defining multiple etiologies of kidney impairment. Although kidney injury following HSCT has been studied, little is known about the effects of allo-HSCT on renal pathology in pediatric patients. METHODS We retrospectively analyzed renal biopsy specimens from children with kidney injury after allo-HSCT and correlated results with clinical data in the last 10 years. RESULTS Among 25 children (18 males and 7 females), three patients had proteinuria indicating nephrotic syndrome (24-hour urinary total protein/weight > 50 mg/kg/d), nine patients had severely reduced estimated glomerular filtration rate (eGFR < 30 ml/min/1.73 m2) and four patients received kidney replacement therapy (KRT). The main pathologies identified from kidney biopsies were MSPGN (n = 12), FSGS (n = 12), MPGN (n = 5), TMA (n = 4), MCD (n = 3), diffuse glomerular fibrosis (DGF, n = 2), ATI and TIN, in isolation or combined with other pathologies. The median follow-up time was 16.5 (0.5 ~ 68.0) months. Three patients died of recurrent malignancy and/or severe infection, one child developed to end-stage renal disease (ESRD), six patients (24%) had elevated serum creatinine (SCr > 100µmol/l) and nine patients (36%) still had proteinuria. CONCLUSIONS This study evaluates histomorphologic findings from kidney biopsies of pediatric recipients following allo-HSCT. Detailed evaluation of renal biopsy samples is helpful to elucidate the nature of renal insult, and may potentially identify treatable disease processes.
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Affiliation(s)
- Ru-Yue Chen
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xiao-Zhong Li
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China.
| | - Qiang Lin
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Han-Yun Tang
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ning-Xun Cui
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Lu Jiang
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xiao-Mei Dai
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Wei-Qing Chen
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Fan Deng
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Shao-Yan Hu
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xue-Ming Zhu
- Department of Pathology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
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Guan J, Wang LL, Wang CY, Zhu XM, Shuai HZ, Yi X, Zou L, Yu D, Cheng H. [A new form of familial platelet disorder caused by germline mutations in RUNX1 in a pedigree]. Zhonghua Nei Ke Za Zhi 2023; 62:393-400. [PMID: 37032134 DOI: 10.3760/cma.j.cn112138-20220414-00273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Objective: To investigate the clinical and biological characteristics of familial platelet disorder (FPD) with germline Runt-related transcription factor (RUNX) 1 mutations. Methods: Patients diagnosed with myelodysplastic syndrome (MDS) or acute myeloid leukemia (AML) with RUNX1 mutations from February 2016 to December 2021 in Wuhan No.1 Hospital underwent pedigree analysis and were screened for gene mutations (somatic and germline). Patients diagnosed with FPD with germline RUNX1 mutations were enrolled and evaluated in terms of clinical characteristics and biological evolution. Bioinformatics analysis was used to assess the pathogenicity of mutations and to analyze the effect of mutated genes on the function of the corresponding protein. Results: Germline RUNX1 mutations were detected in three out of 34 patients suffering from MDS/AML who had RUNX1 mutations. A pedigree of FPD with RUNX1 (RUNX1-FPD) c.562A>C and RUNX1 c.1415T>C mutations was diagnosed, and the mutations were of patrilineal origin. Bioinformatics analysis indicated that the locus at positions 188 and 472 in the AML-1G type of RUNX1 was highly conserved across different species, and that variations might influence functions of the proteins. The mutations were evaluated to be highly pathogenic. Of the nine cases with germline RUNX1 mutations: two patients died due AML progression; one case with AML survived without leukemia after transplantation of hemopoietic stem cells; four patients showed mild-to-moderate thrombocytopenia; two cases had no thrombocytopenia. During the disease course of the proband and her son, mutations in RUNX1, NRAS and/or CEBPA and KIT appeared in succession, and expression of cluster of differentiation-7 on tumor cells was enhanced gradually. None of the gene mutations correlated with the tumor were detected in the four cases not suffering from MDS/AML, and they survived until the end of follow-up. Conclusions: RUNX1-FPD was rare. The mutations c.562A>C and c.1415T>C of RUNX1 could be the disease-causing genes for the family with RUNX1-FPD, and these mutations could promote malignant transformation. Biological monitoring should be carried out regularly to aid early intervention for family members with RUNX1-FPD.
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Affiliation(s)
- J Guan
- The Department of Hematology, Wuhan No.1 Hospital, Wuhan 430022, China
| | - L L Wang
- The Department of Hematology, Wuhan No.1 Hospital, Wuhan 430022, China
| | - C Y Wang
- The Department of Hematology, Tongji Hospital of Huazhong University of Science and Technology, Wuhan 430074, China
| | - X M Zhu
- Department of Lymphoma, Hubei Cancer Hospital, Wuhan 430079, China
| | - H Z Shuai
- The Department of Hematology, Wuhan No.1 Hospital, Wuhan 430022, China
| | - X Yi
- The Department of Hematology, Wuhan No.1 Hospital, Wuhan 430022, China
| | - L Zou
- The Department of Hematology, Wuhan No.1 Hospital, Wuhan 430022, China
| | - D Yu
- The Department of Hematology, Wuhan No.1 Hospital, Wuhan 430022, China
| | - H Cheng
- The Department of Hematology, Wuhan No.1 Hospital, Wuhan 430022, China
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Abstract
Mitophagy, as one of the most important cellular processes to ensure quality control of mitochondria, aims at transporting damaged, aging, dysfunctional or excess mitochondria to vacuoles (plants and fungi) or lysosomes (mammals) for degradation and recycling. The normal functioning of mitophagy is critical for cellular homeostasis from yeasts to humans. Although the role of mitophagy has been well studied in mammalian cells and in certain model organisms, especially the budding yeast Saccharomyces cerevisiae, our understanding of its significance in other fungi, particularly in pathogenic filamentous fungi, is still at the preliminary stage. Recent studies have shown that mitophagy plays a vital role in spore production, vegetative growth and virulence of pathogenic fungi, which are very different from its roles in mammal and yeast. In this review, we summarize the functions of mitophagy for mitochondrial quality and quantity control, fungal growth and pathogenesis that have been reported in the field of molecular biology over the past two decades. These findings may help researchers and readers to better understand the multiple functions of mitophagy and provide new perspectives for the study of mitophagy in fungal pathogenesis.Abbreviations: AIM/LIR: Atg8-family interacting motif/LC3-interacting region; BAR: Bin-Amphiphysin-Rvs; BNIP3: BCL2 interacting protein 3; CK2: casein kinase 2; Cvt: cytoplasm-to-vacuole targeting; ER: endoplasmic reticulum; IMM: inner mitochondrial membrane; mETC: mitochondrial electron transport chain; OMM: outer mitochondrial membrane; OPTN: optineurin; PAS: phagophore assembly site; PD: Parkinson disease; PE: phosphatidylethanolamine; PHB2: prohibitin 2; PX: Phox homology; ROS, reactive oxygen species; TM: transmembrane.
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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, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, 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, Zhejiang, 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, Zhejiang, 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, Zhejiang, China
| | - Daniel J. Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - 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, Zhejiang, China
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, Zhejiang, China
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15
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Yan ZG, Zhu XM, Zhang SW, Jiang H, Wang SP, Wei C, Wang J, Shao Y, Liu C, Wang H. Environmental DNA sequencing reveals the regional difference in diversity and community assembly mechanisms of eukaryotic plankton in coastal waters. Front Microbiol 2023; 14:1132925. [PMID: 36846757 PMCID: PMC9956185 DOI: 10.3389/fmicb.2023.1132925] [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: 12/28/2022] [Accepted: 01/26/2023] [Indexed: 02/12/2023] Open
Abstract
The diversity and community assembly mechanisms of eukaryotic plankton in coastal waters is so far not clear. In this study, we selected the coastal waters of Guangdong-Hong Kong-Macao Greater Bay Area, which is a highly developed region in China, as the research area. By use of high-throughput sequencing technologies, the diversity and community assembly mechanisms of eukaryotic marine plankton were studied in which a total of 7,295 OTUs were obtained, and 2,307 species were annotated by doing environmental DNA survey of 17 sites consist of surface and bottom layer. Ultimately, the analysis reveals that the species abundance of bottom layer is, by and large, higher than that in the surface layer. In the bottom, Arthropoda is the first largest group, accounting for more than 20% while Arthropoda and Bacillariophyta are dominant groups in surface waters accounting for more than 40%. It is significant of the variance in alpha-diversity between sampling sites, and the difference of alpha-diversity between bottom sites is greater than that of surface sites. The result suggests that the environmental factors that have significant influence on alpha-diversity are total alkalinity and offshore distance for surface sites, and water depth and turbidity for bottom sites. Likewise, the plankton communities obey the typical distance-decay pattern. Analysis about community assembly mechanisms reveals that, overall, dispersal limitation is the major pattern of community formation, which accounts for more than 83% of the community formation processes, suggesting that stochastic processes are the crucial assembly mechanism of the eukaryotic plankton community in the study area.
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Affiliation(s)
- Zhen-Guang Yan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China,Frontiers Research Center, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China,*Correspondence: Zhen-Guang Yan, ✉
| | - Xue-Ming Zhu
- Frontiers Research Center, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China
| | - Shou-Wen Zhang
- Frontiers Research Center, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China
| | - Hua Jiang
- Marine Climate Prediction and Assessment Center, National Marine Environmental Forecasting Center, Beijing, China
| | - Shu-Ping Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China,Frontiers Research Center, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China
| | - Chao Wei
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China,Frontiers Research Center, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China
| | - Jie Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China,Frontiers Research Center, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China
| | - Yun Shao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China,Frontiers Research Center, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China
| | - Chen Liu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, China,Frontiers Research Center, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China
| | - Hui Wang
- Frontiers Research Center, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China,Marine Climate Prediction and Assessment Center, National Marine Environmental Forecasting Center, Beijing, China
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16
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Cao N, Zhu XM, Bao JD, Zhu LH, Liu H, Lin FC, Li L. Acyl-coenzyme A binding protein MoAcb1 regulates conidiation and pathogenicity in Magnaporthe oryzae. Front Microbiol 2023; 14:1179536. [PMID: 37187543 PMCID: PMC10175604 DOI: 10.3389/fmicb.2023.1179536] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 04/13/2023] [Indexed: 05/17/2023] Open
Abstract
Magnaporthe oryzae is a filamentous fungus that causes rice blast. Rice blast seriously threatens the safety of food production. The normal synthesis and metabolism of fatty acids are extremely important for eukaryotes, and acyl-CoA is involved in fatty acid metabolism. Acyl-CoA binding (ACB) proteins specifically bind both medium-chain and long-chain acyl-CoA esters. However, the role of the Acb protein in plant-pathogenic fungi has not yet been investigated. Here, we identified MoAcb1, a homolog of the Acb protein in Saccharomyces cerevisiae. Disruption of MoACB1 causes delayed hyphal growth, significant reduction in conidial production and delayed appressorium development, glycogen availability, and reduced pathogenicity. Using immunoblotting and chemical drug sensitivity analysis, MoAcb1 was found to be involved in endoplasmic reticulum autophagy (ER-phagy). In conclusion, our results suggested that MoAcb1 is involved in conidia germination, appressorium development, pathogenicity and autophagy processes in M. oryzae.
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Affiliation(s)
- Na Cao
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 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-Dong Bao
- 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
| | - Li-Hong 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
| | - Hao Liu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 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
| | - 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
- *Correspondence: Lin Li,
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17
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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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Wang LD, Li X, Song XK, Zhao FY, Zhou RH, Xu ZC, Liu AL, Li JL, Li XZ, Wang LG, Zhang FH, Zhu XM, Li WX, Zhao GZ, Guo WW, Gao XM, Li LX, Wan JW, Ku QX, Xu FG, Zhu AF, Ji HX, Li YL, Ren SL, Zhou PN, Chen QD, Bao SG, Gao HJ, Yang JC, Wei WM, Mao ZZ, Han ZW, Chang YF, Zhou XN, Han WL, Han LL, Lei ZM, Fan R, Wang YZ, Yang JJ, Ji Y, Chen ZJ, Li YF, Hu L, Sun YJ, Chen GL, Bai D, You D. [Clinical characteristics of 272 437 patients with different histopathological subtypes of primary esophageal malignant tumors]. Zhonghua Nei Ke Za Zhi 2022; 61:1023-1030. [PMID: 36008295 DOI: 10.3760/cma.j.cn112138-20210929-00668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To characterize the histopathological subtypes and their clinicopathological parameters of gender and onset age by common, rare and sparse primary esophageal malignant tumors (PEMT). Methods: A total of 272 437 patients with PEMT were enrolled in this study, and all of the patients were received radical surgery. The clinicopathological information of the patients was obtained from the database established by the State Key Laboratory of Esophageal Cancer Prevention & Treatment from September 1973 to December 2020, which included the clinical treatment, pathological diagnosis and follow-up information of esophagus and gastric cardia cancers. All patients were diagnosed and classified by the criteria of esophageal tumor histopathological diagnosis and classification (2019) of the World Health Organization (WHO). The esophageal tumors, which were not included in the WHO classification, were analyzed separately according to the postoperative pathological diagnosis. The χ2 test was performed by the SPSS 25.0 software on count data, and the test standard α=0.05. Results: A total of 32 histopathological types were identified in the enrolled PEMT patients, of which 10 subtypes were not included in the WHO classification. According to the frequency, PEMT were divided into common (esophageal squamous cell carcinoma, ESCC, accounting for 97.1%), rare (esophageal adenocarcinoma, EAC, accounting for 2.3%) and sparse (mainly esophageal small cell carcinoma, malignant melanoma, etc., accounting for 0.6%). All the common, rare, and sparse types occurred predominantly in male patients, and the gender difference of rare type was most significant (EAC, male∶ female, 2.67∶1), followed with common type (ESCC, male∶ female, 1.78∶1) and sparse type (male∶ female, 1.71∶1). The common type (ESCC) mainly occurred in the middle thoracic segment (65.2%), while the rare type (EAC) mainly occurred in the lower thoracic segment (56.8%). Among the sparse type, malignant melanoma and malignant fibrous histiocytoma were both predominantly located in the lower thoracic segment (51.7%, 66.7%), and the others were mainly in the middle thoracic segment. Conclusion: ESCC is the most common type among the 32 histopathological types of PEMT, followed by EAC as the rare type, and esophageal small cell carcinoma and malignant melanoma as the major sparse type, and all of which are mainly occur in male patients. The common type of ESCC mainly occur in the middle thoracic segment, while the rare type of EAC mainly in the lower thoracic segment. The mainly sparse type of malignant melanoma and malignant fibrous histiocytoma predominately occur in the lower thoracic segment, and the remaining sparse types mainly occur in the middle thoracic segment.
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Affiliation(s)
- L D Wang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - X Li
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - X K Song
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - F Y Zhao
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - R H Zhou
- Department of Thoracic Surgery, Anyang Tumor Hospital, Anyang 455000, China
| | - Z C Xu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - A L Liu
- Department of Oncology, Linzhou Tumor Hospital, Linzhou 456550, China
| | - J L Li
- Department of Oncology, Linzhou Tumor Hospital, Linzhou 456550, China
| | - X Z Li
- Department of Pathology, Linzhou Esophageal Cancer Hospital, Linzhou 456592, China
| | - L G Wang
- Department of Oncology, Linzhou People's Hospital, Linzhou 456550, China
| | - F H Zhang
- Department of Thoracic Surgery, Xinxiang Central Hospital, Xinxiang 453000, China
| | - X M Zhu
- Department of Pathology, Xinxiang Central Hospital, Xinxiang 453000, China
| | - W X Li
- Department of Pathology, Cixian People's Hospital, Handan 056599, China
| | - G Z Zhao
- Department of Pathology, the First Affiliated Hospital of Xinxiang Medicine University, Xinxiang 453100, China
| | - W W Guo
- Department of Oncology, Linzhou Tumor Hospital, Linzhou 456550, China
| | - X M Gao
- Department of Oncology, Linzhou People's Hospital, Linzhou 456550, China
| | - L X Li
- Xinxiang Key Laboratory for Molecular Therapy of Cancer, Xinxiang Medical University, Xinxiang 453003, China
| | - J W Wan
- Department of Oncology, Nanyang Central Hospital, Nanyang 473009, China
| | - Q X Ku
- Department of Endoscopy, the Second Affiliated Hospital of Nanyang Medical College, Nanyang 473000, China
| | - F G Xu
- Department of Oncology, the First People's Hospital of Nanyang, Nanyang 473002, China
| | - A F Zhu
- Department of Oncology, the First People's Hospital of Shangqiu, Shangqiu 476000, China
| | - H X Ji
- Department of Clinical Laboratory, the Affiliated Heping Hospital of Changzhi Medical College, Changzhi 046000, China
| | - Y L Li
- Department of Pathology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450003, China
| | - S L Ren
- Department of Pathology, the Second Affiliated Hospital, Zhengzhou University, Zhengzhou 450003, China
| | - P N Zhou
- Department of Pathology, Henan People's Hospital, Zhengzhou 450003, China
| | - Q D Chen
- Department of Thoracic Surgery, Henan Tumor Hospital, Zhengzhou 450003, China
| | - S G Bao
- Department of Oncology, Anyang District Hospital, Anyang 455002, China
| | - H J Gao
- Department of Oncology, the First Affiliated Hospital, Henan University of Science and Technology, Luoyang 471003, China
| | - J C Yang
- Department of Pathology, Anyang Tumor Hospital, Anyang 455000, China
| | - W M Wei
- Department of Thoracic Surgery, Linzhou Esophageal Cancer Hospital, Linzhou 456592, China
| | - Z Z Mao
- Department of Thoracic Surgery, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou 310005, China
| | - Z W Han
- Department of Pathology, Zhenping County People's Hospital, Nanyang 474250, China
| | - Y F Chang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - X N Zhou
- Department of Gastroenterology, the Second Affiliated Hospital, Zhengzhou University, Zhengzhou 450003, China
| | - W L Han
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - L L Han
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Z M Lei
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - R Fan
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Y Z Wang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - J J Yang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Y Ji
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Z J Chen
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Y F Li
- Department of Gastroenterology, the Third People's Hospital of Huixian, Huixian 453600, China
| | - L Hu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Y J Sun
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - G L Chen
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - D Bai
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Duo You
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
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Ji LQ, Lou Z, Gong HF, Sui JK, Cao FA, Yu GY, Zhu XM, Zheng NX, Meng RG, Zhang W. [A prospective cohort study on the clinical value of pelvic peritoneal reconstruction in laparoscopic anterior resection for middle and low rectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:336-341. [PMID: 35461202 DOI: 10.3760/cma.j.cn441530-20210520-00214] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the safety and efficacy of pelvic peritoneal reconstruction and its effect on anal function in laparoscopy-assisted anterior resection of low and middle rectal cancer. Methods: A prospective cohort study was conducted. Consecutive patients with low and middle rectal cancer who underwent laparoscopy-assisted transabdominal anterior resection at Naval Military Medical University Changhai Hospital from February 2020 to February 2021 were enrolled. Inclusion criteria: (1) the distance from tumor to the anal verge ≤10 cm; (2) laparoscopy-assisted transabdominal anterior resection of rectal cancer; (3) complete clinical data; (4) rectal adenocarcinoma diagnosed by postoperative pathology. Exclusion criteria: (1) emergency surgery; (2) patients with a history of anal dysfunction or anal surgery; (3) preoperative diagnosis of distant (liver, lung) metastasis; (4) intestinal obstruction; (5) conversion to open surgery for various reasons. The pelvic floor was reconstructed using SXMD1B405 (Stratafix helical PGA-PCL, Ethicon). The first needle was sutured from the left anterior wall of the neorectum to the right. Insertion of the needle was continued to suture the root of the sigmoid mesentery while the Hemo-lok was used to fix the suture. The second needle was started from the beginning of the first needle, after 3-4 needles, a drainage tube was inserted through the left lower abdominal trocar to the presacral space. Then, the left peritoneal incision of the descending colon was sutured, after which Hemo-lok fixation was performed. The operative time, perioperative complications, postoperative Wexner anal function score and low anterior resection syndrome (LARS) score were compared between the study group and the control group. Three to six months after the operation, pelvic MRI was performed to observe and compare the pelvic floor anatomical structure of the two groups. Results: A total of 230 patients were enrolled, including 58 who underwent pelvic floor peritoneum reconstruction as the study group and 172 who did not undergo pelvic floor peritoneum reconstruction as the control group. There were no significant differences in general data between the two groups (all P>0.05). The operation time of the study group was longer than that of control group [(177.5±33.0) minutes vs. (148.7±45.5) minutes, P<0.001]. There was no significant difference in the incidence of perioperative complications (including anastomotic leakage, anastomotic bleeding, postoperative pneumonia, urinary tract infection, deep vein thrombosis, and intestinal obstruction) between the two groups (all P>0.05). Eight cases had anastomotic leakage, of whom 2 cases (3.4%) in the study group were discharged after conservative treatment, 5 cases (2.9%) of other 6 cases (3.5%) in the control group were discharged after the secondary surgical treatment. The Wexner score and LARS score were 3.1±2.8 and 23.0 (16.0-28.0) in the study group, which were lower than those in the control group [4.7±3.4 and 27.0 (18.0-32.0)], and the differences were statistically significant (t=-3.018, P=0.003 and Z=-2.257, P=0.024). Severe LARS was 16.5% (7/45) in study group and 35.5% (50/141) in control group, and the difference was no significant differences (Z=4.373, P=0.373). Pelvic MRI examination 3 to 6 months after surgery showed that the incidence of intestinal accumulation in the pelvic floor was 9.1% (3/33) in study group and 46.4% (64/138) in control group (χ(2)=15.537, P<0.001). Conclusion: Pelvic peritoneal reconstruction using stratafix in laparoscopic anterior resection of middle and low rectal cancer is safe and feasible, which may reduce the probability of the secondary operation in patients with anastomotic leakage and significantly improve postoperative anal function.
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Affiliation(s)
- L Q Ji
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Z Lou
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - H F Gong
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - J K Sui
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - F A Cao
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - G Y Yu
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - X M Zhu
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - N X Zheng
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - R G Meng
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - W Zhang
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
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Li L, Zhu XM, Zhang YR, Cai YY, Wang JY, Liu MY, Wang JY, Bao JD, Lin FC. Research on the Molecular Interaction Mechanism between Plants and Pathogenic Fungi. Int J Mol Sci 2022; 23:ijms23094658. [PMID: 35563048 PMCID: PMC9104627 DOI: 10.3390/ijms23094658] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/07/2022] [Accepted: 04/21/2022] [Indexed: 02/01/2023] Open
Abstract
Plant diseases caused by fungi are one of the major threats to global food security and understanding the interactions between fungi and plants is of great significance for plant disease control. The interaction between pathogenic fungi and plants is a complex process. From the perspective of pathogenic fungi, pathogenic fungi are involved in the regulation of pathogenicity by surface signal recognition proteins, MAPK signaling pathways, transcription factors, and pathogenic factors in the process of infecting plants. From the perspective of plant immunity, the signal pathway of immune response, the signal transduction pathway that induces plant immunity, and the function of plant cytoskeleton are the keys to studying plant resistance. In this review, we summarize the current research progress of fungi–plant interactions from multiple aspects and discuss the prospects and challenges of phytopathogenic fungi and their host interactions.
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Affiliation(s)
- 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; (L.L.); (X.-M.Z.); (J.-Y.W.); (J.-D.B.)
| | - 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; (L.L.); (X.-M.Z.); (J.-Y.W.); (J.-D.B.)
| | - 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 310058, China; (Y.-R.Z.); (Y.-Y.C.); (J.-Y.W.); (M.-Y.L.)
| | - 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; (Y.-R.Z.); (Y.-Y.C.); (J.-Y.W.); (M.-Y.L.)
| | - 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; (Y.-R.Z.); (Y.-Y.C.); (J.-Y.W.); (M.-Y.L.)
| | - 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; (Y.-R.Z.); (Y.-Y.C.); (J.-Y.W.); (M.-Y.L.)
| | - Jiao-Yu Wang
- 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; (L.L.); (X.-M.Z.); (J.-Y.W.); (J.-D.B.)
| | - Jian-Dong Bao
- 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; (L.L.); (X.-M.Z.); (J.-Y.W.); (J.-D.B.)
| | - 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 310021, China; (L.L.); (X.-M.Z.); (J.-Y.W.); (J.-D.B.)
- 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; (Y.-R.Z.); (Y.-Y.C.); (J.-Y.W.); (M.-Y.L.)
- Correspondence: ; Tel.: +86-571-88404007
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21
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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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22
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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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23
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Huang CD, Zhao ZD, Liu XL, Wen YM, Haizhu HZ, Zhu XM, Yang C, Wang J. [Screening results and genetic analysis of neonatal tetrahydrobiopterin deficiency in Hainan Province from 2007 to 2019]. Zhonghua Yi Xue Za Zhi 2021; 101:3161-3163. [PMID: 34674428 DOI: 10.3760/cma.j.cn112137-20210121-00200] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A total of 1 295 516 dried blood spots were collected from newborns in Hainan Province from 2007 to 2019 who participated in the screening of neonatal diseases, and 43 cases of hyperphenylalaninemia were diagnosed. Among the 43 cases, 8 cases were confirmed to have tetrahydrobiopterin deficiency (4 males and 4 females). The incidence of tetrahydrobiopterin deficiency among newborns in Hainan Province was 6.2/1 million. Six mutations in the PTS gene were detected among 7 cases; the mutations were as follows: c.317C>T, c.286G>A, c.259C>T, c.155A>G, c.84+291A>G and c.83+1777T>G. A homozygous mutation at c.41T>C site of QDPR gene was detected in one case. Overall, it's found that the incidence of tetrahydrobiopterin deficiency in newborn populations in Hainan Province is low, and PTS gene mutations account for the largest proportion of cases of tetrahydrobiopterin deficiency within the study population.
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Affiliation(s)
- C D Huang
- Neonatal Disease Screening Center, Hainan Women's and Children's Medical Center, Haikou 570206, China
| | - Z D Zhao
- Neonatal Disease Screening Center, Hainan Women's and Children's Medical Center, Haikou 570206, China
| | - X L Liu
- Neonatal Disease Screening Center, Hainan Women's and Children's Medical Center, Haikou 570206, China
| | - Y M Wen
- Neonatal Disease Screening Center, Hainan Women's and Children's Medical Center, Haikou 570206, China
| | - H Z Haizhu
- Neonatal Disease Screening Center, Hainan Women's and Children's Medical Center, Haikou 570206, China
| | - X M Zhu
- Neonatal Disease Screening Center, Hainan Women's and Children's Medical Center, Haikou 570206, China
| | - C Yang
- Neonatal Disease Screening Center, Hainan Women's and Children's Medical Center, Haikou 570206, China
| | - J Wang
- Neonatal Disease Screening Center, Hainan Women's and Children's Medical Center, Haikou 570206, China
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24
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Song QY, Zhu XM, Song GX, Li X, Fan QH, Zhang ZH, Gong QX. [Epithelioid hemangioendothelioma with TFE3 translocation in soft tissue:a clinicopathological study]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1151-1156. [PMID: 34619869 DOI: 10.3760/cma.j.cn112151-20210119-00054] [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 clinicopathological and molecular features, diagnosis and differential diagnosis of TFE3-rearranged epithelioid hemangioendothelioma (EHE). Methods Two cases of TFE3-rearranged EHE arising from soft tissues, diagnosed by the Pathology Department of the First Affiliated Hospital of Nanjing Medical University from 2013 to 2020 were observed. EnVision method was used for immunophenotyping, fluorescence in situ hybridization (FISH) was used to test TFE3 gene rearrangements and WWTR1-CAMTA1 fusion gene,and next-generation sequencing (NGS) was used to delineate the fusion transcripts. Results: Details of these two cases were as follows: case 1, male, 51 years old, with tumor in the right temporal region; case 2, female, 42 years old, with tumor in the right neck. The tumors showed progressive painless enlargement. Grossly, the tumor of case 1 was multinodular with unclear boundary and grayish red cut surface, while the tumor of case 2, originating from a vein, appeared as a firm, tan mass within vessel wall. Microscopically, both tumors showed moderate cellularity and were consisted of plump, epithelioid, or histiocytoid cells with eosinophilic cytoplasm and mild-to-moderate nuclear pleomorphism. Most of the tumor cells were arranged in solid or alveolar growth patterns, while some tumor cells showed intraluminal papillary growth pattern in case 1 and anastomosing vascular channels and extramedullary hematopoiesis in case 2. Immunohistochemically, the tumor cells showed diffuse positivity for CD31, CD34, ERG, and TFE3. FISH revealed TFE3 break-apart signals in two cases, but WWTR1-CAMTA1 gene fusion was not detected. NGS identified YAP1 (exon1)-TFE3 (exon6) fusion gene in case 2. Clinical follow-up information was available in both cases for a follow-up period of 15 and 59 months respectively. Patient 1 had a relapse 22 months after surgery, and was currently alive with the tumor. Patient 2 remained disease-free. Conclusions: TFE3-rearranged EHE is a rare molecular subtype of EHE, with accompanying characteristic morphologic features. However the morphologic spectrum remains under-recognized, and more experience is needed. Immunohistochemical and molecular examinations are helpful for the diagnosis and differential diagnosis of the disease.
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Affiliation(s)
- Q Y Song
- Department of Pathology, the First Affiliated Hospital of Nanjing Medical University (Jiangsu Province Hospital), Nanjing 210029, China
| | - X M Zhu
- Department of Image, the First Affiliated Hospital of Nanjing Medical University (Jiangsu Province Hospital), Nanjing 210029, China
| | - G X Song
- Department of Pathology, the First Affiliated Hospital of Nanjing Medical University (Jiangsu Province Hospital), Nanjing 210029, China
| | - X Li
- Department of Pathology, the First Affiliated Hospital of Nanjing Medical University (Jiangsu Province Hospital), Nanjing 210029, China
| | - Q H Fan
- Department of Pathology, the First Affiliated Hospital of Nanjing Medical University (Jiangsu Province Hospital), Nanjing 210029, China
| | - Z H Zhang
- Department of Pathology, the First Affiliated Hospital of Nanjing Medical University (Jiangsu Province Hospital), Nanjing 210029, China
| | - Q X Gong
- Department of Pathology, the First Affiliated Hospital of Nanjing Medical University (Jiangsu Province Hospital), Nanjing 210029, China
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25
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Su ZZ, Dai MD, Zhu JN, Liu XH, Li L, Zhu XM, Wang JY, Yuan ZL, Lin FC. Dark septate endophyte Falciphora oryzae-assisted alleviation of cadmium in rice. J Hazard Mater 2021; 419:126435. [PMID: 34323726 DOI: 10.1016/j.jhazmat.2021.126435] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 06/08/2021] [Accepted: 06/18/2021] [Indexed: 06/13/2023]
Abstract
Dark septate endophytes (DSEs) are the typical representatives of root endophytic fungi in heavy metal (HM)-contaminated environments. However, little is known about their roles in the HMs tolerance of hosts and the underlying mechanism. Here, we investigated the biological roles and molecular mechanisms of a DSE strain Falciphora oryzae in alleviating cadmium (Cd) toxicities in rice. It was found that F. oryzae possessed a capacity of accumulating Cd in its vacuoles and chlamydospores. During symbiosis, F. oryzae conferred improved Cd tolerance to rice, decreasing Cd accumulation in roots and translocation to shoots. F. oryzae alleviated Cd toxicity to rice by sequestering Cd in its vacuoles. Further application of F. oryzae as fertilizer in the field could reduce Cd content in rice grains. We identified a SNARE Syntaxin 1 gene through proteomics, which participated in Cd tolerance of F. oryzae by regulating chlamydospore formation and vacuole enlargement. This study provided novel insights into how the DSEs and their host plants combat Cd stress.
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Affiliation(s)
- Zhen-Zhu Su
- Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Meng-Di Dai
- Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Jia-Nan Zhu
- Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Xiao-Hong Liu
- Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Lin Li
- 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
| | - Jiao-Yu Wang
- 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
| | - Zhi-Lin Yuan
- Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Fu-Cheng Lin
- 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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26
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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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27
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Abstract
Septins, a conserved family of GTP-binding proteins, are widely recognized as an essential cytoskeletal component, playing important roles in a variety of biological processes, including division, polarity, and membrane remodeling, in different eukaryotes. Although the roles played by septins were identified in the model organism Saccharomyces cerevisiae, their importance in other fungi, especially pathogenic fungi, have recently been determined. In this review, we summarize the functions of septins in pathogenic fungi in the cell cycle, autophagy, endocytosis and invasion host-microbe interactions that were reported in the last two years in the field of septin cell biology. These new discoveries may be expanded to investigate the functions of septin proteins in fungal pathogenesis and may be of wide interest to the readers of Microbiology and Molecular Pathology.
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Affiliation(s)
- 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.,State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, 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
| | - Zhen-Zhu Su
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Maurizio Del Poeta
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, New York, USA.,Division of Infectious Diseases, Stony Brook University, Stony Brook, New York, USA.,Veterans Affairs Medical Center, Northport, New York, USA
| | - 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
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28
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Zhang W, Zhu XM. [Reappraisal of the lateral rectal structure]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 23:1144-1148. [PMID: 33353267 DOI: 10.3760/cma.j.cn.441530-20190819-00313] [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
Colorectal surgeons have focused on the lateral structure of rectum for a long time and lateral ligament is the common term to depict this structure. A better understanding of lateral rectal structure could be beneficial to performing the total mesorectum excision (TME) procedure and protecting patients' urinary, sexual and defecation function. The main controversies focus on two aspects: (1) Does the lateral ligament exist? (2) What dose it contain? Does the middle rectal artery exist? Up to now, anatomic studies have failed to reach consensus on the lateral rectal structure. However, surgeons do find the lateral rectal ligament during surgery and it may be the pathway for lateral lymph node metastasis in rectal cancer. The lateral rectal structure contains the middle rectal artery, nerve branches, lymphatics and adipose fibrous tissue around them. We summarize our clinical experience and conclude that the middle rectal artery appears in lateral ligament constantly but some of them are too small to be easily observed. Therefore, regarding the perspective of membrane anatomy, embryology and surgery, this structure may be more appropriate to be called the "lateral mesorectum". We propose this new term based on the previous literature and our own experience for the readers' reference.
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Affiliation(s)
- W Zhang
- Department of Colorectal Surgery, Changhai Hospital, Navy Military Medical University, Shanghai 200433, China
| | - X M Zhu
- Department of Colorectal Surgery, Changhai Hospital, Navy Military Medical University, Shanghai 200433, China
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29
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Zhu XM, Li L, Cai YY, Wu XY, Shi HB, Liang S, Qu YM, Naqvi NI, Del Poeta M, Dong B, Lin FC, Liu XH. A VASt-domain protein regulates autophagy, membrane tension, and sterol homeostasis in rice blast fungus. Autophagy 2020; 17:2939-2961. [PMID: 33176558 DOI: 10.1080/15548627.2020.1848129] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Sterols are a class of lipids critical for fundamental biological processes and membrane dynamics. These molecules are synthesized in the endoplasmic reticulum (ER) and are transported bi-directionally between the ER and plasma membrane (PM). However, the trafficking mechanism of sterols and their relationship with macroautophagy/autophagy are still poorly understood in the rice blast fungus Magnaporthe oryzae. Here, we identified the VAD1 Analog of StAR-related lipid transfer (VASt) domain-containing protein MoVast1 via co-immunoprecipitation in M. oryzae. Loss of MoVAST1 resulted in conidial defects, impaired appressorium development, and reduced pathogenicity. The MoTor (target of rapamycin in M. oryzae) activity is inhibited because MoVast1 deletion leads to high levels of sterol accumulation in the PM. Site-directed mutagenesis showed that the 902 T site is essential for localization and function of MoVast1. Through filipin or Flipper-TR staining, autophagic flux detection, MoAtg8 lipidation, and drug sensitivity assays, we uncovered that MoVast1 acts as a novel autophagy inhibition factor that monitors tension in the PM by regulating the sterol content, which in turn modulates the activity of MoTor. Lipidomics and transcriptomics analyses further confirmed that MoVast1 is an important regulator of lipid metabolism and the autophagy pathway. Our results revealed and characterized a novel sterol transfer protein important for M. oryzae pathogenicity.Abbreviations: AmB: amphotericin B; ATMT: Agrobacterium tumefaciens-mediated transformation; CM: complete medium; dpi: days post-inoculation; ER: endoplasmic reticulum; Flipper-TR: fluorescent lipid tension reporter; GO: Gene ontology; hpi: hours post-inoculation; IH: invasive hyphae; KEGG: kyoto encyclopedia of genes and genomes; MoTor: target of rapamycin in Magnaporthe oryzae; PalmC: palmitoylcarnitine; PM: plasma membrane; SD-N: synthetic defined medium without amino acids and ammonium sulfate; TOR: target of rapamycin; VASt: VAD1 Analog of StAR-related lipid transfer; YFP, yellow fluorescent protein.
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Affiliation(s)
- Xue-Ming Zhu
- St Ate 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
| | - Lin Li
- St Ate Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Ying-Ying Cai
- St Ate Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Xi-Yu Wu
- St Ate Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Huan-Bin Shi
- St Ate 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
- St Ate Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Ying-Min Qu
- St Ate Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Naweed I Naqvi
- Temasek Life Sciences Laboratory, Department of Biological Sciences, National University of Singapore, Singapore
| | - Maurizio Del Poeta
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, New York, USA.,Division of Infectious Diseases, Stony Brook University, Stony Brook, New York, USA.,Veterans Affairs Medical Center, Northport, New York, USA
| | - Bo Dong
- Markey Cancer Center, University of Kentucky, College of Medicine, Lexington, KY, USA
| | - Fu-Cheng Lin
- St Ate 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
- St Ate 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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30
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Song YR, Guo WL, Sheng M, Lin Q, Zhu XM, Li XZ. Risk factors associated with renal crescentic formation in pediatric Henoch-Schönlein purpura nephritis: a retrospective cohort study. BMC Pediatr 2020; 20:501. [PMID: 33131493 PMCID: PMC7604931 DOI: 10.1186/s12887-020-02404-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 10/26/2020] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The long-term prognosis of Henoch-Schönlein purpura (HSP) depends on the severity of renal involvement, and crescent formation is considered an important risk factor for poor prognosis of Henoch-Schönlein purpura nephritis (HSPN). The objective of this study was to evaluate factors affecting crescent formation in children with HSPN. METHODS Demographic factors, clinical characteristics, and laboratory data of children with HSPN with or without crescents were retrospectively analyzed. Univariate and multivariate logistic regression analyses were used to determine the risk factors of crescent formation in HSPN. RESULTS A total of 191 children with HSPN were enrolled in the study. There were 107 (56%) males and 84 (44%) females, with a median age of 7 years (range: 2 years-15 years). International Study of Kidney Disease in Children (ISKDC) grading was used to divide subjects into two groups: those without glomerular crescent formation (ISKDC grades I-II, n = 146 cases) and those with glomerular crescent formation (ISKDC grades III-V, n = 45 cases). Logistic regression analysis showed that higher urinary white blood cell (WBC) count (OR = 3.300; 95% CI, 1.119-9.739; P = 0.0306) and higher urinary microalbumin/creatinine ratio (ACR) (OR = 25.053; 95% CI, 1.354-463.708; P = 0.0305) were independent risk factors for the formation of crescents in HSPN. The area under the receiver operating characteristic curve of urinary WBC and ACR were 0.753 and 0.698 respectively, with the Hosmer and Lemeshow goodness-of-fit test (P = 0.0669, P > 0.05). CONCLUSION These results suggest that higher urinary WBC count and ACR should be strictly monitored for children with HSPN. Adequate clinical intervention for these risk factors may limit or prevent renal crescent formation.
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Affiliation(s)
- Yong-Rui Song
- Department of Radiology, Children's Hospital of Soochow University, 92 Zhongnan Street, Suzhou, 215025, Jiangsu, China
| | - Wan-Liang Guo
- Department of Radiology, Children's Hospital of Soochow University, 92 Zhongnan Street, Suzhou, 215025, Jiangsu, China
| | - Mao Sheng
- Department of Radiology, Children's Hospital of Soochow University, 92 Zhongnan Street, Suzhou, 215025, Jiangsu, China
| | - Qiang Lin
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, 303 Jingde Road, Suzhou, 215003, Jiangsu, China
| | - Xue-Ming Zhu
- Department of Pathology, Children's Hospital of Soochow University, 92 Zhongnan Street, Suzhou, 215025, Jiangsu, China
| | - Xiao-Zhong Li
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, 303 Jingde Road, Suzhou, 215003, Jiangsu, China.
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31
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Chen RY, Li XZ, Lin Q, Zhu Y, Shen YY, Xu QY, Zhu XM, Chen LQ, Wu HY, Chen XQ. Proteinuria as a presenting sign of combined methylmalonic acidemia and homocysteinemia: case report. BMC Med Genet 2020; 21:183. [PMID: 32957924 PMCID: PMC7507264 DOI: 10.1186/s12881-020-01122-x] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 09/10/2020] [Indexed: 11/24/2022]
Abstract
Background Disorders of the metabolism and absorption of vitamin B12 can lead to decrease in activity of methionine synthetase and methylmalonate coenzyme A mutase (MMUT), which results in increased levels of methylmalonic acid and homocysteine in blood and urine. Often, combined methylmalonic acidemia (MMA) and homocysteinemia is misdiagnosed due to a lack of specific symptoms. The clinical manifestations are diverse, but proteinuria as the initial presentation is rare. Case presentation Two cases of MMA with homocysteinemia in children are reported. Proteinuria were a primary presenting symptom, followed by anemia and neurologic symptoms (frequent convulsions and unstable walking, respectively). Screening of amino acids and acyl carnitine in serum showed that the propionyl carnitine:acetylcarnitine ratio increased. Profiling of urinary organic acids by gas chromatography–mass spectrometry revealed high levels of methylmalonic acid. Homocysteine content in blood was increased. Comprehensive genetic analyses of peripheral blood-derived DNA demonstrated heterozygous variants of methylmalonic aciduria type C and homocystinuria (MMACHC) and amnionless (AMN) genes in our two patients, respectively. After active treatment, the clinical manifestations in Case 1 were relieved and urinary protein ceased to be observed; Case 2 had persistent proteinuria and was lost to follow-up. Conclusions Analyses of the organic acids in blood and urine suggested MMA combined with homocysteinemia. In such diseases, reports of renal damage are uncommon and proteinuria as the initial presentation is rare. Molecular analysis indicated two different genetic causes. Although the pathologic mechanisms were related to vitamin B12, the severity and prognosis of renal lesions were different. Therefore, gene detection provides new insights into inherited metabolic diseases.
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Affiliation(s)
- Ru-Yue Chen
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xiao-Zhong Li
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China.
| | - Qiang Lin
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Yun Zhu
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Yun-Yan Shen
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Qin-Ying Xu
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xue-Ming Zhu
- Department of Pathology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Lin-Qi Chen
- Department of Endocrinology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Hai-Ying Wu
- Department of Endocrinology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xu-Qin Chen
- Department of Neurology, Children's Hospital of Soochow University, Suzhou, Jiangsu, China
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Deng X, Cheng Y, Zhu XM, Linghu DD, Zhao MW, Liang JH. [Evaluation the risk of optic nerve invasion associated with optic nerve obscuration in advanced retinoblastoma]. Zhonghua Yan Ke Za Zhi 2020; 56:681-687. [PMID: 32907301 DOI: 10.3760/cma.j.cn112142-20200318-00197] [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 potential association between optic nerve invasion and optic nerve obscuration during treatment of advanced retinoblastoma. Methods: Retrospective case series study. Medical records of 77 patients (77 eyes) with advanced retinoblastoma (Group D/E) who were treated with primary or secondary enucleation in the Ophthalmology Department of Peking University People's Hospital from January 1st 2012 to December 31th 2015 were retrospectively reviewed. RetCam photographs under general anesthesia at diagnosis and each subsequent follow-up were evaluated for complete obscuration of the optic nerve. The primary endpoints included prelaminar invasion, postlaminar invasion and optic nerve transection invasion. Group difference was calculated with chi-square. Results: There were 46 boys and 31 girls in the study. The mean age at the first diagnosis was (27.1±22.1) months. The optic nerve was obscured in 62 eyes (80.5%) at the first diagnosis and 61 eyes (79.2%) at the last ocular examination prior to enucleation. Twenty-nine eyes (37.7%) underwent primary enucleation. Forty-eight eyes (62.3%) were treated with eye-preserving therapy, followed by enucleation. Fourteen eyes (18.2%) were in Group D and 63 eyes (81.8%) were in Group E. Histopathologic analysis of enucleated eyes without optic nerve obscuration (16 eyes) showed prelaminar invasion in 7 eyes, postlaminar invasion in 2 eyes and optic nerve transection invasion in 0 eyes. Histopathologic analysis of enucleated eyes with optic nerve obscuration (61 eyes) showed prelaminar invasion in 26 eyes, postlaminar invasion in 9 eyes and optic nerve transection invasion in 4 eyes. The difference between two groups did not achieve statistical significance (P=0.935, 1.000, 0.296). Histopathologic analysis of enucleated eyes with persistent complete obscuration of the optic nerve showed a high risk factor in 10 eyes (10/40), while in 1 eye (1/8) the optic nerve was visible at the initial presentation and obscured before secondary enucleation (P=0.529). Conclusion: Optic nerve obscuration at the last examination prior to enucleation may not be associated with postlaminar optic nerve invasion in advanced retinoblastoma. (Chin J Ophthalmol, 2020, 56: 681-687).
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Affiliation(s)
- X Deng
- Department of Ophthalmology, Peking University People's Hospital, Eye Diseases and Optometry Institute, Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, College of Optometry, Peking University Health Science Center, Beijing 100044, China
| | - Y Cheng
- Department of Ophthalmology, Peking University People's Hospital, Eye Diseases and Optometry Institute, Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, College of Optometry, Peking University Health Science Center, Beijing 100044, China
| | - X M Zhu
- Department of Ophthalmology, Peking University People's Hospital, Eye Diseases and Optometry Institute, Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, College of Optometry, Peking University Health Science Center, Beijing 100044, China
| | - D D Linghu
- Department of Ophthalmology, Peking University People's Hospital, Eye Diseases and Optometry Institute, Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, College of Optometry, Peking University Health Science Center, Beijing 100044, China
| | - M W Zhao
- Department of Ophthalmology, Peking University People's Hospital, Eye Diseases and Optometry Institute, Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, College of Optometry, Peking University Health Science Center, Beijing 100044, China
| | - J H Liang
- Department of Ophthalmology, Peking University People's Hospital, Eye Diseases and Optometry Institute, Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, College of Optometry, Peking University Health Science Center, Beijing 100044, 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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Li L, Zhu XM, Shi HB, Feng XX, Liu XH, Lin FC. MoFap7, a ribosome assembly factor, is required for fungal development and plant colonization of Magnaporthe oryzae. Virulence 2020; 10:1047-1063. [PMID: 31814506 PMCID: PMC6930019 DOI: 10.1080/21505594.2019.1697123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Fap7, an important ribosome assembly factor, plays a vital role in pre-40S small ribosomal subunit synthesis in Saccharomyces cerevisiae via its ATPase activity. Currently, the biological functions of its homologs in filamentous fungi remain elusive. Here, MoFap7, a homologous protein of ScFap7, was identified in the rice blast fungus Magnaporthe oryzae, which is a devastating fungal pathogen in rice and threatens food security worldwide. ΔMofap7 mutants exhibited defects in growth and development, conidial morphology, appressorium formation and infection, and were sensitive to oxidative stress. In addition, site-directed mutagenesis analysis confirmed that the conserved Walker A motif and Walker B motif in MoFap7 are essential for the biological functions of M. oryzae. We further analyzed the regulation mechanism of MoFap7 in pathogenicity. MoFap7 was found to interact with MoMst50, a regulator functioning in the MAPK Pmk1 signaling pathway, that participates in modulating plant penetration and cell-to-cell invasion by regulating the phosphorylation of MoPmk1. Moreover, MoFap7 interacted with the GTPases MoCdc42 and MoRac1 to control growth and conidiogenesis. Taken together, the results of this study provide novel insights into MoFap7-mediated orchestration of the development and pathogenesis of filamentous fungi.
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Affiliation(s)
- Lin Li
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, China
| | - Xue-Ming Zhu
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, China
| | - Huan-Bin Shi
- State Key Laboratory for Rice Biology, China National Rice Research Institute, Hangzhou, China
| | - Xiao-Xiao Feng
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, China
| | - Xiao-Hong Liu
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, China
| | - Fu-Cheng Lin
- State Key Laboratory for Rice Biology, Biotechnology Institute, Zhejiang University, Hangzhou, China
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Zhang W, Zhu XM. [Laparoscopic surgery of total mesorectal excision based on pelvic membrane anatomy]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:427-431. [PMID: 31104426 DOI: 10.3760/cma.j.issn.1671-0274.2019.05.006] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Total mesorectal excision (TME) is the basic principle of surgery in rectal cancer which requires en bloc removal of the tumor and its regional lymph nodes. This conincides with the theory of membrane anatomy that emphasizes en bloc resection and avoids cancer leakage. The basis of membrane anatomy is the fusion of peritoneum and three key pointsare needed to understand the fusion and fusion fascia:(1) the fusion only occursin peritoneum; (2) the inside of fusion fascia cannot be separated; (3) the fusion can be diversiform. Only mastering these key points can we comprehend and apply this theory dialectically. The membrane anatomy in rectum is different from stomach or colon because of its specific location. The posterior space of rectum is filled with the loose connective tissue which is the degeneration of peritoneum fusion. In this space, the anterior lay of presacral fascia fuses with the proper fascia of rectum at the S4 level and separates the space into the retrorectal space and the supralevator space. Denonvilliers fascia is the fusion fascia in front of rectum, which forms the prerectal space and retroprostatic space, and extends to lateral pelvic wall with fusion of the parietal fascia of pelvis, covering the neurovascular bundle (NVB) together. The proper fascia of rectum surrounds the middle rectal artery, the pelvic plexus rectal branch and the adipose tissue to form the lateral rectal pedicle at 10 o'clock and 2 o'clock near the pelvic floor. At the level of levator ani hiatus, the fusion of levator ani muscle fascia and the proper fascia of rectum forms the Hiatal ligament, which fixs the anal canal and closes the levator ani hiatus.This article intends to discuss the above points from the perspective of membrane anatomy, in order to better guide surgeons to complete laparoscopic total mesorectal excision for rectal cancer.
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Affiliation(s)
- W Zhang
- Department of Colorectal Surgery, Changhai Hospital, Navy Military Medical University, Shanghai 200433, China
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Wang LQ, Guo WH, Guo ZW, Qin P, Zhang R, Zhu XM, Liu DW. [Effects of PNPLA3, TM6SF2 gene polymorphisms and its interactions with smoking and alcohol drinking on hepatitis B virus-associated hepatocellular carcinoma]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 39:1611-1616. [PMID: 30572387 DOI: 10.3760/cma.j.issn.0254-6450.2018.12.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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 explore the SNP effects of patatin-like phospholipase domain which containing 3 (PNPLA3), transmembrane 6 superfamily member 2 (TM6SF2) gene, environmental effects of smoking, alcohol drinking and interaction between gene-gene, gene-environment and drinking-smoking on hepatitis B virus-associated hepatocellular carcinoma (HBV-HCC). Methods: We collected anticoagulant peripheral blood from patients of HBV-HCC, chronic hepatitis B (CHB), liver cirrhosis (LC) and from healthy controls to detect the single nucleotide polymorphism (SNP) of patatin-like phospholipase domain containing 3 (PNPLA3) gene loci rs738409 and transmembrane 6 superfamily member 2 (TM6SF2) gene loci rs58542926, using the flight mass spectrometry method. The optimal assignment value of gene polymorphisms was defined by using the online SNP stats. Hardy-Weinberg (H-W) balance was tested for SNP. Effects of the genetic and environmental factors to HBV-HCC were analyzed by using the multiple classification logistic regression method. The gene-gene, gene-smoking and alcohol drinking interaction effects were investigated by Fork-Life analysis and binary logistic regression methods. Results: The frequency distribution of CHB group rs738409 loci seemed not in conformity with the H-W balance (χ(2)=11.980, P<0.005). Two loci frequency distributions in the other groups were all in accordandce with the H-W balance. After adjusting for influences on age and sex and comparing to the healthy group, the rs58542926 mutation appeared as OR=1.659, 95%CI: 1.026-2.684, P=0.039, in the HBV-HCC group. When comparing to CHB group, the HBV-HCC group presented that drinking as OR=1.680, 95%CI: 1.121-2.519, P=0.012. When comparing to the LC group, the ORs of drinking and smoking were 1.539 (1.071-2.213) and 1.453 (1.005-2.099) respectively, in the HBV-HCC group. When comparing to the CHB+LC group, interactions between the HBV-HCC group were found rs738409 and rs58542926 on additive model OR=1.548 (U=1.885, P=0.029) and OR=1.658 (P=0.024) on logistic regression model while drinking was rs738409 on interaction additive model with OR=1.811(U=1.965, P=0.024). As for drinking and mutation of rs738409, the multiplication model of logistic regression showed no statistically significant differences. Interaction between smoking and drinking appeared as OR=1.756 (P<0.001) in the logistics regression multiplication model. Conclusions: Factors as mutation of TM6SF2, smoking and drinking all appeared as risk factors for HBV-HCC. Mutations of both PNPLA3 and TM6SF2, together with smoking and drinking all served as risk factors for HBV-HCC. However, the mutation of single PNPLA3 appeared as a protective factor on HBV-HCC.
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Affiliation(s)
- L Q Wang
- Hebei Key Laboratory of Environment and Population Health, Department of Epidemiology and Statistics, School of Public Health, Hebei Medical University, Shijiazhuang 050031, China
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Zhu XM, Qi X, Li DL, Zhang YW, Li HP, Tan JG. [Effect of a novel cold atmospheric plasma jet treatment with different temperatures on resin-dentin bonding]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:43-48. [PMID: 30773542 DOI: 10.19723/j.issn.1671-167x.2019.01.008] [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: 11/20/2022]
Abstract
OBJECTIVE To investigate the effect of different treatment temperatures of a novel cold atmospheric plasma jet treatment on the resin-dentin bonding. METHODS (1) Fifty-two freshly extracted, non-carious and intact third molars were collected. The occlusal one-third of the crown was removed by means of a water-cooled low-speed Isomet saw. One dentin disc [(900 ±100) μm] was prepared for each tooth. The fifty-two dentin discs were randomly divided into control group and experimental groups, of which four were in control group, and forty-eight were divided into four experimental groups according to the different treatment temperatures (4 °C, 10 °C, 20 °C and 30 °C) of the novel radio-frequency atmospheric-pressure glow discharge (RF-APGD) plasma jet, twelve in each group. Each experimental group was divided into three subgroups according to different treatment time (10 s, 20 s and 30 s), with four in each subgroup. The occlusal one-third of the crown was removed by means of a water-cooled low-speed Isomet saw. The morphology of demineralized dentin surfaces was analyzed using field emission scanning electron microscopy. (2) Twenty unerupted, non-carious and intact third molars were randomly divided into five groups, four in each group: control group, untreated; 4 °C, 10 °C, 20 °C and 30 °C experimental groups, each group was treated with the RF-APGD plasma jet for 20 s. The micro-tensile resin dentin bond strength was tested after 20 s RF-APGD plasma jet treatment with different temperatures, using a universal mechanical machine. RESULTS (1) The field emission scanning electron microscopy results indicated that when compared with the control group, a 10 s RF-APGD plasma jet treatment with 30 °C and 20 °C collapsed the collagen scaffold. Collagen fibrils maintained an uncollapsed three-dimensional structure after the 4 °C RF-APGD plasma jet treatment for even 30 s treatment. (2) The microtensile resin dentin bond strength results of the 4 °C RF-APGD plasma jet treatment group (57.8±0.7) MPa were significantly higher than that of the control group [(47.4±0.5) MPa] and 10 s, 20 s and 30 s RF-APGD plasma treatment group [(51.9±0.7) MPa,(29.7±1.0) MPa and (22.2±1.5) MPa] with statistically significant difference (P<0.05). Compared with the control group, the micro-tensile bond strength increased about 21.9% and 9.5% after 4 °C and 10 °C RF-APGD plasma jet treatment, respectively. CONCLUSION Compared with other treatment temperatures, this novel RF-APGD plasma jet treatment with the temperature of 4 °C can preserve the three-dimensional morphology of demineralized dentin better, and can improve the resin-dentin bonding.
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Affiliation(s)
- X M Zhu
- Second Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100101, China
| | - X Qi
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - D L Li
- Second Clinical Division, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100101, China
| | - Y W Zhang
- Department of Stomatology, Aerospace Center Hospital, Beijing 100049, China
| | - H P Li
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
| | - J G Tan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China
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Abstract
The interaction between pathogens and their host plants is a ubiquitous process. Some plant fungal pathogens can form a specific infection structure, such as an appressorium, which is formed by the accumulation of a large amount of glycerin and thereby the creation of an extremely high intracellular turgor pressure, which allows the penetration peg of the appressorium to puncture the leaf cuticle of the host. Previous studies have shown that autophagy energizes the accumulation of pressure by appressoria, which induces its pathogenesis. Similar to other eukaryotic organisms, autophagy processes are highly conserved pathways that play important roles in filamentous fungal pathogenicity. This review aims to demonstrate how the autophagy process affects the pathogenicity of plant pathogens.
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Affiliation(s)
- Xue-Ming Zhu
- a State Key Laboratory for Rice Biology, Institute of Biotechnology , Zhejiang University , Hangzhou , China
| | - Lin Li
- a State Key Laboratory for Rice Biology, Institute of Biotechnology , Zhejiang University , Hangzhou , China
| | - Min Wu
- a State Key Laboratory for Rice Biology, Institute of Biotechnology , Zhejiang University , Hangzhou , China
| | - Shuang Liang
- a State Key Laboratory for Rice Biology, Institute of Biotechnology , Zhejiang University , Hangzhou , China
| | - Huan-Bin Shi
- a State Key Laboratory for Rice Biology, Institute of Biotechnology , Zhejiang University , Hangzhou , China
| | - Xiao-Hong Liu
- a State Key Laboratory for Rice Biology, Institute of Biotechnology , Zhejiang University , Hangzhou , China
| | - Fu-Cheng Lin
- a State Key Laboratory for Rice Biology, Institute of Biotechnology , Zhejiang University , Hangzhou , 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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Qu HL, Guo DD, Xu T, Li Z, Yin J, Tian XP, Kong DQ, Zhu XM, Miao LY, Wu DP, Tang XW. [CYP2C19 genetic polymorphism and monitoring voriconazole plasma concentrations in the treatment and prevention of invasive fungal disease for hematological patients]. Zhonghua Xue Ye Xue Za Zhi 2018; 39:202-206. [PMID: 29562464 PMCID: PMC7342993 DOI: 10.3760/cma.j.issn.0253-2727.2018.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Indexed: 11/29/2022]
Abstract
Objective: To evaluate the effects of CYP2C19 genetic polymorphism on the plasma concentration of voriconazole in patients with hematological disease and the value of serial monitoring plasma concentrations in the treatment and prevention of invasive fungal disease (IFD). Methods: From January 2016 to December 2016, 65 hematological patients who received voriconazole intravenous administration for the treatment of invasive fungal disease were enrolled in this study. The population CYP2C19 polymorphism of voriconazole were performed using PCR-Pyrosequencing. The trough plasma concentrations of vriconazole (Ctrough) was detected by ultra performance liquid chromatography tandem mass spectrometry. Results: Based on the genotype analysis, 65 subjects were identified as extensive metabolizers' group (30 cases) and poor metabolizers' group (35 cases). The Ctrough of the 65 patients were detected for 169 times totally, and there was a significant difference of Ctrough values between the two groups [0.98(0.38-2.08) mg/L vs 2.19(1.53-4.27) mg/L, z=10.286, P<0.001]. The medium of Ctrough in 65 hematological patients were described. Lack of response to therapy was more frequent in patients with voriconazole levels <1.5 mg/L (50.0%) than in those with voriconazole levels >1.5 mg/L (20.5%) (P=0.052). And the risk of adverse events was more frequent in patients with voriconazole levels >5.5 mg/L (80.0%) than in those with voriconazole levels ≤5.5 mg/L (8.3%) (χ2=11.689, P=0.020). Conclusion: Patients with CYP2C19 wild-type phenotype are extensive metabolizers, their Ctrough of voriconazole are significantly lower than patients with CYP2C19 non-wild-type phenotype (poor metabolizers). Appropriate concentrations of vriconazole can improve the efficacy and safety during treatment.
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Affiliation(s)
- H L Qu
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Jiangsu Clinical Medicine Center, Suzhou 215006, China
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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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Wang Y, Wu S, Wang ZC, Zhu XM, Yin XT, Gao K, Du ZY, Chen GZ, Yu JY. Enhanced immunity and antiviral effects of an HBV DNA vaccine delivered by a DC-targeting protein. J Viral Hepat 2016; 23:798-804. [PMID: 27126208 DOI: 10.1111/jvh.12542] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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: 01/19/2016] [Accepted: 03/24/2016] [Indexed: 12/12/2022]
Abstract
DNA vaccine targeting delivery to DC represents one effective strategy to improve the immunogenicity of the vaccine. In a previous study, we developed a novel DC-targeting recombinant protein that can deliver plasmid DNA to DCs by an electrostatic coupling effect and can thus improve the uptake efficiency of DCs, improving the expression of plasmid DNA in DCs. In this study, we coupled the protein with the HBV DNA vaccine pSVK-HBVA and investigated whether the immunogenicity and antiviral ability of the vaccine can be improved in HBV transgenic mice. The results show that a stronger specific immune response can be induced in mice after immunization with the coupling vaccine. The HBV DNA copy number and circulating antigen HBsAg in the serum of HBV transgenic mice were significantly decreased. Therefore, this study has demonstrated that the DC-targeting protein has the ability to improve the immunogenicity and the antiviral activity of the HBV DNA vaccine pSVK-HBVA. These findings indicate that this DC-targeting protein can be a potential method for the delivery of DNA vaccines directly to DCs.
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Affiliation(s)
- Y Wang
- Beijing Institute of Basic Medical Sciences, Beijing, China
| | - S Wu
- Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Z C Wang
- Beijing Institute of Basic Medical Sciences, Beijing, China
| | - X M Zhu
- Beijing Institute of Basic Medical Sciences, Beijing, China
| | - X T Yin
- Beijing Institute of Basic Medical Sciences, Beijing, China.,Department of Urology, Chinese PLA General Hospital, Beijing, China
| | - K Gao
- Beijing Institute of Basic Medical Sciences, Beijing, China
| | - Z Y Du
- Beijing Institute of Basic Medical Sciences, Beijing, China
| | - G Z Chen
- Beijing Institute of Basic Medical Sciences, Beijing, China
| | - J Y Yu
- Beijing Institute of Basic Medical Sciences, Beijing, China.
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Chen L, Lu C, Li XL, Zhu XM, Zhang S, Tan JG. [Preliminary evaluation on self-developed dentin porcelain color prediction system]. Zhonghua Kou Qiang Yi Xue Za Zhi 2016; 51:538-41. [PMID: 27596343 DOI: 10.3760/cma.j.issn.1002-0098.2016.09.006] [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 apply the self-developed dentin porcelain color prediction system in the fabrication of porcelain-fused-to-metal-crown(PFMC), and to evaluate its accuracy in color-matching. METHODS Twenty upper central incisors were recruited according to preset criteria, and three PFMC were made for each tooth using three shade-matching techniques. Group A: PFMC were made according to the result of visual color selection; Group B: an spectrophotometer-based color-matching technique was used; Group C: PFMC were fabricated with dentin porcelain powder calculated by the prediction system according to the L(*), a(*), b(*) value measured by a spectrophotometer. Color differences(ΔE) (measured by spectrophotometer) of three groups of crowns were calculated in the cervical, middle, and incisal regions. The results were analyzed using one-way ANOVA. RESULTS Mean color differences in body regions were: Group A: 3.53±1.80, Group B: 2.86±1.63, Group C: 3.77±1.40(P>0.05), and those in incisal regions were: Group A: 2.70 ± 1.13, Group B: 2.80 ± 0.90, Group C: 3.04 ± 1.03(P>0.05). In cervical region, Group C had greater color difference than Group B(2.78±1.14)(P<0.05). Group A(3.80±2.02) and Group B, Group A and Group C had similar color difference(P>0.05). CONCLUSIONS PFMC fabricated using self-developed dentin porcelain color prediction system had similar color matching compared with conventional and instrument-based methods.
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Affiliation(s)
- L Chen
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - C Lu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X L Li
- Dental Laboratory, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X M Zhu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - S Zhang
- Dental Laboratory, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J G Tan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Wang J, Yao FZ, Ji X, Zhu XM, Su PC. Identification of a novel HLA-C allele, HLA-C*07:477 in a Drung Chinese individual. HLA 2016; 87:468-9. [PMID: 27168457 DOI: 10.1111/tan.12814] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 04/06/2016] [Accepted: 04/08/2016] [Indexed: 11/30/2022]
Abstract
HLA-C*07:477 has one nonsynonymous nucleotide change from HLA-C*07:02:01:01 in codon 176, exon 3 (AAG>GAG).
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Affiliation(s)
- J Wang
- Clinical Transfusion Research Center, Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College, Chengdu, PR China
| | - F Z Yao
- Transfusion Medicine Research Department, Yunnan Kunming Blood Center, Kunming, PR China
| | - X Ji
- Clinical Transfusion Research Center, Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College, Chengdu, PR China
| | - X M Zhu
- Transfusion Medicine Research Department, Yunnan Kunming Blood Center, Kunming, PR China
| | - P C Su
- Transfusion Medicine Research Department, Yunnan Kunming Blood Center, Kunming, PR China
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Tao YF, Xu LX, Lu J, Hu SY, Fang F, Cao L, Xiao PF, Du XJ, Sun LC, Li ZH, Wang NN, Su GH, Li YH, Li G, Zhao H, Li YP, Xu YY, Zhou HT, Wu Y, Jin MF, Liu L, Zhu XM, Ni J, Wang J, Xing F, Zhao WL, Pan J. Early B-cell factor 3 (EBF3) is a novel tumor suppressor gene with promoter hypermethylation in pediatric acute myeloid leukemia. J Exp Clin Cancer Res 2015; 34:4. [PMID: 25609158 PMCID: PMC4311429 DOI: 10.1186/s13046-014-0118-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 11/27/2014] [Indexed: 12/21/2022]
Abstract
Background Pediatric acute myeloid leukemia (AML) comprises up to 20% of all childhood leukemia. Recent research shows that aberrant DNA methylation patterning may play a role in leukemogenesis. The epigenetic silencing of the EBF3 locus is very frequent in glioblastoma. However, the expression profiles and molecular function of EBF3 in pediatric AML is still unclear. Methods Twelve human acute leukemia cell lines, 105 pediatric AML samples and 30 normal bone marrow/idiopathic thrombocytopenic purpura (NBM/ITP) control samples were analyzed. Transcriptional level of EBF3 was evaluated by semi-quantitative and real-time PCR. EBF3 methylation status was determined by methylation specific PCR (MSP) and bisulfite genomic sequencing (BGS). The molecular mechanism of EBF3 was investigated by apoptosis assays and PCR array analysis. Results EBF3 promoter was hypermethylated in 10/12 leukemia cell lines. Aberrant EBF3 methylation was observed in 42.9% (45/105) of the pediatric AML samples using MSP analysis, and the BGS results confirmed promoter methylation. EBF3 expression was decreased in the AML samples compared with control. Methylated samples revealed similar survival outcomes by Kaplan-Meier survival analysis. EBF3 overexpression significantly inhibited cell proliferation and increased apoptosis. Real-time PCR array analysis revealed 93 dysregulated genes possibly implicated in the apoptosis of EBF3-induced AML cells. Conclusion In this study, we firstly identified epigenetic inactivation of EBF3 in both AML cell lines and pediatric AML samples for the first time. Our findings also showed for the first time that transcriptional overexpression of EBF3 could inhibit proliferation and induce apoptosis in AML cells. We identified 93 dysregulated apoptosis-related genes in EBF3-overexpressing, including DCC, AIFM2 and DAPK1. Most of these genes have never been related with EBF3 over expression. These results may provide new insights into the molecular mechanism of EBF3-induced apoptosis; however, further research will be required to determine the underlying details. Our findings suggest that EBF3 may act as a putative tumor suppressor gene in pediatric AML.
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Affiliation(s)
- Yan-Fang Tao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Li-Xiao Xu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Jun Lu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Shao-Yan Hu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Fang Fang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Lan Cao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Pei-Fang Xiao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Xiao-Juan Du
- Department of Gastroenterology, the 5th Hospital of Chinese PLA, Yin chuan, China.
| | - Li-Chao Sun
- Department of Cell and Molecular Biology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.
| | - Zhi-Heng Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Na-Na Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Guang-Hao Su
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Yan-Hong Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Gang Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - He Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Yi-Ping Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Yun-Yun Xu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Hui-Ting Zhou
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Yi Wu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Mei-Fang Jin
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Lin Liu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Xue-Ming Zhu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Jian Ni
- Translational Research Center, Second Hospital, The Second Clinical School, Nanjing Medical University, Nanjing, China.
| | - Jian Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Feng Xing
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Wen-Li Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Jian Pan
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
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Wang NN, Li ZH, Zhao H, Tao YF, Xu LX, Lu J, Cao L, Du XJ, Sun LC, Zhao WL, Xiao PF, Fang F, Su GH, Li YH, Li G, Li YP, Xu YY, Zhou HT, Wu Y, Jin MF, Liu L, Ni J, Wang J, Hu SY, Zhu XM, Feng X, Pan J. Molecular targeting of the oncoprotein PLK1 in pediatric acute myeloid leukemia: RO3280, a novel PLK1 inhibitor, induces apoptosis in leukemia cells. Int J Mol Sci 2015; 16:1266-92. [PMID: 25574601 PMCID: PMC4307303 DOI: 10.3390/ijms16011266] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 10/15/2014] [Accepted: 12/29/2014] [Indexed: 01/03/2023] Open
Abstract
Polo-like kinase 1 (PLK1) is highly expressed in many cancers and therefore a biomarker of transformation and potential target for the development of cancer-specific small molecule drugs. RO3280 was recently identified as a novel PLK1 inhibitor; however its therapeutic effects in leukemia treatment are still unknown. We found that the PLK1 protein was highly expressed in leukemia cell lines as well as 73.3% (11/15) of pediatric acute myeloid leukemia (AML) samples. PLK1 mRNA expression was significantly higher in AML samples compared with control samples (82.95 ± 110.28 vs. 6.36 ± 6.35; p < 0.001). Kaplan-Meier survival analysis revealed that shorter survival time correlated with high tumor PLK1 expression (p = 0.002). The 50% inhibitory concentration (IC50) of RO3280 for acute leukemia cells was between 74 and 797 nM. The IC50 of RO3280 in primary acute lymphocytic leukemia (ALL) and AML cells was between 35.49 and 110.76 nM and 52.80 and 147.50 nM, respectively. RO3280 induced apoptosis and cell cycle disorder in leukemia cells. RO3280 treatment regulated several apoptosis-associated genes. The regulation of DCC, CDKN1A, BTK, and SOCS2 was verified by western blot. These results provide insights into the potential use of RO3280 for AML therapy; however, the underlying mechanisms remain to be determined.
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Affiliation(s)
- Na-Na Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Zhi-Heng Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - He Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Yan-Fang Tao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Li-Xiao Xu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Jun Lu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Lan Cao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Xiao-Juan Du
- Department of Gastroenterology, the 5th Hospital of Chinese People's Liberation Army (PLA), Yinchuan 750000, China.
| | - Li-Chao Sun
- Department of Cell and Molecular Biology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100021, China.
| | - Wen-Li Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Pei-Fang Xiao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Fang Fang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Guang-Hao Su
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Yan-Hong Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Gang Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Yi-Ping Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Yun-Yun Xu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Hui-Ting Zhou
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Yi Wu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Mei-Fang Jin
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Lin Liu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Jian Ni
- Translational Research Center, Second Hospital, The Second Clinical School, Nanjing Medical University, Nanjing 210000, China.
| | - Jian Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Shao-Yan Hu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Xue-Ming Zhu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Xing Feng
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Jian Pan
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
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Li TY, Miao YY, Ye WB, Zhu X, Zhu XM. Far-field sound radiation of a submerged cylindrical shell at finite depth from the free surface. J Acoust Soc Am 2014; 136:1054. [PMID: 25190381 DOI: 10.1121/1.4890638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The far-field sound radiation behavior of a circular cylindrical shell submerged at finite depth from the free surface is studied. Based on the Flügge shell theory and the Helmholtz equation, the structure-acoustic coupling equation is established. An image method is applied so that the sound boundary condition of the free surface can be satisfied. Analytical expression of the far-field sound pressure is obtained using the stationary phase method and the Graf's addition theorem. In order to evaluate the effect of the submerged depth on sound radiation, the results of the submerged cylindrical shell at finite depth from the free surface are compared with those of the submerged cylindrical shell in the infinite fluid. The characteristics of the far-field sound pressure with the change of the depth are investigated. It is found that the submerged depth has a significant influence on the far-field sound pressure radiated from the submerged cylindrical shell due to the free surface effects. The work provides more understanding on the sound radiation properties of the submerged circular cylindrical shell without assuming infinite fluid field, which was commonly used in previous studies.
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Affiliation(s)
- T Y Li
- School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Y Y Miao
- School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - W B Ye
- Wuhan Second Ship Design and Research Institute, Wuhan 430064, China
| | - X Zhu
- School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - X M Zhu
- National Key Laboratory on Ship Vibration and Noise, Wuhan 430064, China
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Yang H, Wang B, Yan J, Wang T, Zhou XN, Wen HY, Zhu XM. Toll-like receptor 2 promotes invasion by SGC-7901 human gastric carcinoma cells and is associated with gastric carcinoma metastasis. Ann Clin Lab Sci 2014; 44:158-166. [PMID: 24795054] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Toll-like receptors (TLRs) play a key role in cancer metastasis. The biological role of TLR2 in invasion and metastasis in gastric carcinoma cells and gastric carcinoma is not clear; therefore, we aimed to investigate the biological role of TLR2 in invasion by SGC-7901 human gastric carcinoma cells and to determine whether TLR2 is associated with gastric carcinoma metastasis. RT-PCR, real-time PCR, flow cytometry, and western blotting showed that TLR2 activation significantly increased TLR2 expression at the mRNA and protein levels and notably promoted the transcription of genes related to angiogenesis and invasion, such as VEGF-C and MMP-9. The invasive capacity of SGC-7901 cells was strikingly advanced by TLR2 stimulation on Transwell invasion assay. IL-6 in the supernatants of cultured SGC-7901 cells was increased under the condition of TLR2 stimulation and reduced after TLR2 blockade by ELISA. Combined with clinicopathological parameters, the expression of TLR2 protein examined by immunohistochemical analysis was higher in gastric carcinoma tissues than in adjacent non-cancerous tissues (p<0.001). There was a significant relationship between TLR2 expression and lymph node metastasis (p<0.01), distant metastasis (p<0.01). There was no significant correlation between gastric carcinoma and age (p>0.05), sex (p>0.05), or degree of differentiation (p>0.05). These findings indicate that TLR2 may participate in the progression and metastasis of human gastric carcinoma and provide a new therapeutic target against metastasis of gastric carcinoma.
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Affiliation(s)
- Huan Yang
- Department of Clinical Laboratory, The Second affiliated Hospital of Soochow University, Suzhou, Jiangsu, Sanxiang Road No.1055,Suzhou, Jiangsu, P.R. of China,215004; phone: 0512 67783436; fax: 0512-67783434; e-mail:
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Li ML, Chen JH, Zhao ZY, Zhang KJ, Li Z, Li J, Mai JY, Zhu XM, Cai MS. Molecular cloning and characterization of the pseudorabies virus US1 gene. Genet Mol Res 2013; 12:85-98. [PMID: 23359028 DOI: 10.4238/2013.january.22.7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Using polymerase chain reaction, a 1050-bp sequence of the US1 gene was amplified from the pseudorabies virus (PRV) Becker strain genome; identification of the US1 gene was confirmed by further cloning and sequencing. Bioinformatics analysis indicated that the PRV US1 gene encodes a putative polypeptide with 349 amino acids. The encoded protein, designated PICP22, had a conserved Herpes_IE68 domain, which was found to be closely related with the herpes virus immediate early regulatory protein family and is highly conserved among the counterparts encoded by Herpes_IE68 genes. Multiple nucleic acid sequence and amino acid sequence alignments suggested that the product of PRV US1 has a relatively higher homology with ICP22-like proteins of genus Varicellovirus than with those of other genera of Alphaherpesvirinae. In addition, phylogenetic analysis showed that PRV US1 has a close evolutionary relationship with members of the genus Varicellovirus, especially Equid herpes virus 1 (EHV-1), EHV-4 and EHV-9. Antigen prediction indicated that several potential B-cell epitopes are located in PICP22. Also, subcellular localization analysis demonstrated that PICP22 is predominantly located in the cytoplasm, suggesting that it might function as a cytoplasmic-targeted protein.
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Affiliation(s)
- M L Li
- Department of Pathogenic Biology and Immunology, Guangzhou Medical University, China
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Jin MF, Zhu XM, Gu HY, Wang XD, Liu L, Zhang M, Li XW. Significance of expression of E-cadherin and β-catenin in juvenile colorectal polyps in children. Shijie Huaren Xiaohua Zazhi 2012; 20:3051-3056. [DOI: 10.11569/wcjd.v20.i31.3051] [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 detect the expression of E-cadherin and β-catenin mRNAs and proteins in human colorectal juvenile polyps (JP) in children.
METHODS: The expression of E-cadherin and β-catenin mRNAs and proteins in 22 juvenile colorectal polyp specimens and 8 normal colorectal specimens was assayed by real-time PCR and Western blot, respectively. Immunohistochemistry was used to determine the expression and localization of E-cadherin and β-catenin in 30 juvenile colorectal polyp specimens and 10 normal colorectal specimens.
RESULTS: Real-time PCR and Western blot analyses showed that the expression levels of E-cadherin mRNA and protein were significantly lower in juvenile colorectal polyps than in normal colorectal specimens (1.1526 ± 0.3801 vs 0.4094 ± 0.2305, P < 0.05; 0.6028 ± 0.1778 vs 0.3257 ± 0.1168, P < 0.05). Although there was no significant difference in the expression level of β-catenin mRNA between the two groups, the expression of β-catenin was significantly higher in juvenile colorectal polyps than in normal colorectal specimens (0.8010 ± 0.1380 vs 1.2064 ± 0.3587, P < 0.05). Immunohistochemistry indicates that E-cadherin expression was down-regulated in juvenile polyps compared with controls (102.5155 ± 25.2988 vs 53.5772 ± 15.3205, P < 0.05). Positive staining for E-cadherin was predominantly localized on the epithelial cell membrane. The expression of β-catenin was increased in juvenile polyp specimens (112.0805 ± 24 9572 vs 260.3554 ± 86.6987, P < 0.05), and the positive rates of membrane, cytoplasmic and nuclear staining in juvenile polyp tissue was significantly higher than those in normal control tissues.
CONCLUSION: Dysregulation of E-cadherin and β-catenin expression may be an important feature of juvenile colorectal polyps.
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