1
|
Yang X, Liu R, Du Y, Mei C, Zhang G, Wang C, Yang Y, Xu Z, Li W, Liu X. circRNA_8521 promotes Senecavirus A infection by sponging miRNA-324 to regulate LC3A. Vet Res 2024; 55:43. [PMID: 38581048 PMCID: PMC10996121 DOI: 10.1186/s13567-024-01291-0] [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: 12/05/2023] [Accepted: 02/28/2024] [Indexed: 04/07/2024] Open
Abstract
Senecavirus A (SVA) causes outbreaks of vesicular disease in pigs, which imposes a considerable economic burden on the pork industry. As current SVA prevention measures are ineffective, new strategies for controlling SVA are urgently needed. Circular (circ)RNA is a newly characterized class of widely expressed, endogenous regulatory RNAs, which have been implicated in viral infection; however, whether circRNAs regulate SVA infection remains unknown. To investigate the influence of circRNAs on SVA infection in porcine kidney 15 (PK-15) cells, RNA sequencing technology was used to analyze the circRNA expression profiles of SVA-infected and uninfected PK-15 cells, the interactions between circRNAs, miRNAs, and mRNAs potentially implicated in SVA infection were predicted using bioinformatics tools. The prediction accuracy was verified using quantitative real-time (qRT)-PCR, Western blotting, as well as dual-luciferase reporter and RNA pull-down assays. The results showed that 67 circRNAs were differentially expressed as a result of SVA infection. We found that circ_8521 was significantly upregulated in SVA-infected PK-15 cells and promoted SVA infection. circ_8521 interacted with miR-324. miR-324 bound to LC3A mRNA which inhibited the expression of LC3A. Knockdown of LC3A inhibited SVA infection. However, circ_8521 promoted the expression of LC3A by binding to miR-324, thereby promoting SVA infection. We demonstrated that circ_8521 functioned as an endogenous miR-324 sponge to sequester miR-324, which promoted LC3A expression and ultimately SVA infection.
Collapse
Affiliation(s)
- Xiwang Yang
- Southwest University, College of Veterinary Medicine, Chongqing, 400715, China
| | - Rui Liu
- Department of Infectious and Tropical Diseases, The Second Affiliated Hospital of Hainan Medical University, Haikou, 570100, China
| | - Yunsha Du
- Southwest University, College of Veterinary Medicine, Chongqing, 400715, China
| | - Caiqiu Mei
- Ya'an People's Hospital, Ya'an, 625000, China
| | - Guangneng Zhang
- School of Public Health, Southern Medical University, Guangzhou, 511495, China
| | - Chen Wang
- Southwest University, College of Veterinary Medicine, Chongqing, 400715, China
| | - Yijun Yang
- Department of Infectious and Tropical Diseases, The Second Affiliated Hospital of Hainan Medical University, Haikou, 570100, China
| | - Zhiwen Xu
- Animal Biotechnology Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, 610052, China
| | - Wenting Li
- Department of Infectious and Tropical Diseases, The Second Affiliated Hospital of Hainan Medical University, Haikou, 570100, China.
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
| | - Xiao Liu
- Southwest University, College of Veterinary Medicine, Chongqing, 400715, China.
- State Key Laboratory of Silkworm Genome Biology, Chongqing, 400715, China.
| |
Collapse
|
2
|
He G, Dong T, Yang Z, Stokke BT, Jiang Z. Surface Oxygen Deficiency Enabled Spontaneous Antiprotein Fouling in WO 3 Nanosheets for Biosensing in Biological Fluids. Anal Chem 2024; 96:839-846. [PMID: 38174654 PMCID: PMC10794997 DOI: 10.1021/acs.analchem.3c04414] [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] [Received: 09/30/2023] [Revised: 12/12/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024]
Abstract
Biofouling deteriorates the performance of sensors operated in biofluids. Protein adsorption is believed to be the first step of biofouling, which also reduces biocompatibility by further inducing cell adhesion, platelet activation, and even inflammation. Current studies of antifouling coatings are focused on polymers and hydrogels, which have succeeded in remaining resistant to protein adsorption, but their application on sensor electrodes is limited due to low conductivity and biocompatibility. Here, we report a spontaneous antibiofouling strategy for sensor electrodes by controlling oxygen vacancies in WO3 nanosheets. Irreversible adsorption of proteins was reduced by 76% in unprocessed human plasma when electrodes were coated with WO3 rich in surface oxygen vacancy. These electrodes maintained 91% of the initial current density after 1 month of incubation in human plasma.
Collapse
Affiliation(s)
- Guozhen He
- Chongqing
Key Laboratory of Micro-Nano Systems and Smart Transduction, Chongqing
Key Laboratory of Colleges and Universities on Micro-Nano Systems
Technology and Smart Transducing, Collaborative Innovation Center
on Micro-Nano Transduction and Intelligent Eco-Internet of Things,
Chongqing Academician and Expert Workstation, Chongqing Technology and Business University, Nan’an District, Chongqing 400067, China
- Department
of Microsystems (IMS), Faculty of Technology, Natural Sciences and
Maritime Sciences, University of South-Eastern
Norway, Postboks 235, Kongsberg 3603, Norway
- Sensovann
AS, Raveien 215, Borre 3184, Norway
| | - Tao Dong
- Chongqing
Key Laboratory of Micro-Nano Systems and Smart Transduction, Chongqing
Key Laboratory of Colleges and Universities on Micro-Nano Systems
Technology and Smart Transducing, Collaborative Innovation Center
on Micro-Nano Transduction and Intelligent Eco-Internet of Things,
Chongqing Academician and Expert Workstation, Chongqing Technology and Business University, Nan’an District, Chongqing 400067, China
- Department
of Microsystems (IMS), Faculty of Technology, Natural Sciences and
Maritime Sciences, University of South-Eastern
Norway, Postboks 235, Kongsberg 3603, Norway
| | - Zhaochu Yang
- Chongqing
Key Laboratory of Micro-Nano Systems and Smart Transduction, Chongqing
Key Laboratory of Colleges and Universities on Micro-Nano Systems
Technology and Smart Transducing, Collaborative Innovation Center
on Micro-Nano Transduction and Intelligent Eco-Internet of Things,
Chongqing Academician and Expert Workstation, Chongqing Technology and Business University, Nan’an District, Chongqing 400067, China
- Sensovann
AS, Raveien 215, Borre 3184, Norway
| | - Bjo̷rn Torger Stokke
- Department
of Microsystems (IMS), Faculty of Technology, Natural Sciences and
Maritime Sciences, University of South-Eastern
Norway, Postboks 235, Kongsberg 3603, Norway
- Biophysics
and Medical Technology, Department of Physics, Norwegian University of Science and Technology, Trondheim NO-7491, Norway
| | - Zhuangde Jiang
- Chongqing
Key Laboratory of Micro-Nano Systems and Smart Transduction, Chongqing
Key Laboratory of Colleges and Universities on Micro-Nano Systems
Technology and Smart Transducing, Collaborative Innovation Center
on Micro-Nano Transduction and Intelligent Eco-Internet of Things,
Chongqing Academician and Expert Workstation, Chongqing Technology and Business University, Nan’an District, Chongqing 400067, China
- Xi’an
Jiaotong University, Xi’an 710049, China
| |
Collapse
|
3
|
Xu JY, Lv YF, Cao Y, Ma HM, Hao XL, Huang L, Tang XF, Guo QN. Long noncoding RNA XLOC_006786 inhibits the proliferation, invasion and metastasis of osteosarcoma cells through NOTCH3 signaling pathway by targeting miR-491-5p. Hum Cell 2023; 36:2140-2151. [PMID: 37573513 DOI: 10.1007/s13577-023-00958-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 07/24/2023] [Indexed: 08/15/2023]
Abstract
Recent research has indicated that Long noncoding RNAs (LncRNAs) are crucial in many disorders, especially tumors. However, the exact role of LncRNA XLOC_006786 (LncRNA-SPIDR-2:1) in malignancies, especially in human osteosarcoma, is unclear. The results of RT‒qPCR, western blotting, CCK-8 assays, and Transwell assays showed that LncRNA XLOC_006786 inhibited osteosarcoma cell proliferation, invasion, and migration, indicating that it may be a tumor suppressor gene in osteosarcoma. We found that LncRNA XLOC_006786 negatively regulated NOTCH3, which is an oncogenic gene in osteosarcoma, as we previously reported. Bioinformatics analysis showed that miR-491-5p may be a direct target of LncRNA XLOC_006786, while NOTCH3 is a key target of miR-491-5p. Then, we verified that LncRNA XLOC_006786 could prevent lung metastatic osteosarcoma in vivo. Taken together, our research showed that LncRNA XLOC_006786 suppresses osteosarcoma proliferation, invasion, and metastasis through the NOTCH3 signaling pathway by targeting miR-491-5p.
Collapse
Affiliation(s)
- Jia-Yi Xu
- Department of Pathology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Yang-Fan Lv
- Department of Pathology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Ya Cao
- Department of Pathology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Hong-Min Ma
- Department of Pathology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Xiang-Lin Hao
- Department of Pathology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Lu Huang
- Department of Pathology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Xue-Feng Tang
- Department of Pathology, Xinqiao Hospital, Army Medical University, Chongqing, China.
| | - Qiao-Nan Guo
- Department of Pathology, Xinqiao Hospital, Army Medical University, Chongqing, China.
| |
Collapse
|
4
|
Xu M, Tan J, Zhu L, Ge C, Zhang Y, Gao F, Dai X, Kuang Q, Chai J, Zou B, Wang B. Palmitoyltransferase ZDHHC3 Aggravates Nonalcoholic Steatohepatitis by Targeting S-Palmitoylated IRHOM2. Adv Sci (Weinh) 2023; 10:e2302130. [PMID: 37544908 PMCID: PMC10558657 DOI: 10.1002/advs.202302130] [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] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/20/2023] [Indexed: 08/08/2023]
Abstract
Underestimation of the complexity of pathogenesis in nonalcoholic steatohepatitis (NASH) significantly encumbers development of new drugs and targeted therapy strategies. Inactive rhomboid protein 2 (IRHOM2) has a multifunctional role in regulating inflammation, cell survival, and immunoreaction. Although cytokines and chemokines promote IRHOM2 trafficking or cooperate with partner factors by phosphorylation or ubiquitin ligases-mediated ubiquitination to perform physiological process, it remains unknown whether other regulators induce IRHOM2 activation via different mechanisms in NASH progression. Here the authors find that IRHOM2 is post-translationally S-palmitoylated at C476 in iRhom homology domain (IRHD), which facilitates its cytomembrane translocation and stabilization. Fatty-acids challenge can directly promote IRHOM2 trafficking by increasing its palmitoylation. Additionally, the authors identify Zinc finger DHHC-type palmitoyltransferase 3 (ZDHHC3) as a key acetyltransferase required for the IRHOM2 palmitoylation. Fatty-acids administration enhances IRHOM2 palmitoylation by increasing the direct association between ZDHHC3 and IRHOM2, which is catalyzed by the DHHC (C157) domain of ZDHHC3. Meanwhile, a metabolic stresses-triggered increase of ZDHHC3 maintains palmitoylated IRHOM2 accumulation by blocking its ubiquitination, consequently suppressing its ubiquitin-proteasome-related degradation mediated by tripartite motif containing 31 (TRIM31). High-levels of ZDHHC3 protein abundance positively correlate with the severity of NASH phenotype in patient samples. Hepatocyte-specific dysfunction of ZDHHC3 significantly inhibits palmitoylated IRHOM2 deposition, therefore suppressing the fatty-acids-mediated hepatosteatosis and inflammation in vitro, as well as NASH pathological phenotype induced by two different high-energy diets (HFHC & WTDF) in the in vivo rodent and rabbit model. Inversely, specific restoration of ZDHHC3 in hepatocytes markedly provides acceleration over the course of NASH development via increasing palmitoylation of IRHOM2 along with suppression of ubiquitin degradation. The current work uncovers that ZDHHC3-induced palmitoylation is a novel regulatory mechanism and signal that regulates IRHOM2 trafficking, which confers evidence associating the regulation of palmitoylation with NASH progression.
Collapse
Affiliation(s)
- Minxuan Xu
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir RegionSchool of Biological and Chemical EngineeringChongqing University of EducationChongqing400067P. R. China
- College of Modern Health IndustryChongqing University of EducationChongqing400067P. R. China
- Key Laboratory of Biorheological Science and Technology (Chongqing University)Ministry of EducationCollege of BioengineeringChongqing UniversityChongqing400030P. R. China
| | - Jun Tan
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir RegionSchool of Biological and Chemical EngineeringChongqing University of EducationChongqing400067P. R. China
- College of Modern Health IndustryChongqing University of EducationChongqing400067P. R. China
| | - Liancai Zhu
- Key Laboratory of Biorheological Science and Technology (Chongqing University)Ministry of EducationCollege of BioengineeringChongqing UniversityChongqing400030P. R. China
| | - Chenxu Ge
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir RegionSchool of Biological and Chemical EngineeringChongqing University of EducationChongqing400067P. R. China
- College of Modern Health IndustryChongqing University of EducationChongqing400067P. R. China
- Key Laboratory of Biorheological Science and Technology (Chongqing University)Ministry of EducationCollege of BioengineeringChongqing UniversityChongqing400030P. R. China
| | - Yi Zhang
- Department of Gastrointestinal SurgeryShandong Cancer Hospital and InstituteShandong First Medical University&Shandong Academy of Medical ScienceJinan250117P. R. China
| | - Fufeng Gao
- Department of Gastrointestinal SurgeryShandong Cancer Hospital and InstituteShandong First Medical University&Shandong Academy of Medical ScienceJinan250117P. R. China
| | - Xianling Dai
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir RegionSchool of Biological and Chemical EngineeringChongqing University of EducationChongqing400067P. R. China
- Key Laboratory of Biorheological Science and Technology (Chongqing University)Ministry of EducationCollege of BioengineeringChongqing UniversityChongqing400030P. R. China
| | - Qin Kuang
- Chongqing Key Laboratory of Medicinal Resources in the Three Gorges Reservoir RegionSchool of Biological and Chemical EngineeringChongqing University of EducationChongqing400067P. R. China
- Key Laboratory of Biorheological Science and Technology (Chongqing University)Ministry of EducationCollege of BioengineeringChongqing UniversityChongqing400030P. R. China
| | - Jie Chai
- Department of Gastrointestinal SurgeryShandong Cancer Hospital and InstituteShandong First Medical University&Shandong Academy of Medical ScienceJinan250117P. R. China
| | - Benkui Zou
- Department of Gastrointestinal SurgeryShandong Cancer Hospital and InstituteShandong First Medical University&Shandong Academy of Medical ScienceJinan250117P. R. China
| | - Bochu Wang
- Key Laboratory of Biorheological Science and Technology (Chongqing University)Ministry of EducationCollege of BioengineeringChongqing UniversityChongqing400030P. R. China
| |
Collapse
|
5
|
Guo T, Pan Y, Yang L, Chen G, Deng J, Zhu L. Flavonoid compound from Agrimonia pilosa Ledeb improves adipose insulin resistance by alleviating oxidative stress and inflammation. BMC Complement Med Ther 2023; 23:322. [PMID: 37710214 PMCID: PMC10503054 DOI: 10.1186/s12906-023-04114-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 08/02/2023] [Indexed: 09/16/2023] Open
Abstract
BACKGROUND Researches and practice of traditional Chinese medicine indicated that Agrimonia pilosa Ledeb could improve insulin resistance (IR) and treat type 2 diabetes (T2DM). To reveal its underling mechanisms, we isolated Flavonoid component (FC) from Agrimonia pilosa Ledeb and elucidated its effects on glucose metabolism to improve IR by suppressing oxidative stress and inflammation. METHODS Adipocytes or mice IR model was established with overdosed glucose and insulin or high-fat diet. The uptake of 2-NBDG and glucose consumption were measured to verify insulin sensitivity in vitro and vivo. Reactive oxidative species (ROS) were detected by flow cytometry, and superoxide dismutase (SOD) activity as well as the malondialdehyde (MDA) content were also measured. Meanwhile, factors associated with insulin signal pathway including PPARγ, insulin receptor substrate-1 (IRS-1), GLUT4, and oxidative stress including NF-E2-related factor 2 (Nrf2), as well as the related inflammatory cytokines such as NF-κB, IL-1β, IL-6 and TNF-α were tested. Furthermore, the JNK/PI3K/Akt signal pathway was also explored. RESULTS FC extracted from Agrimonia pilosa Ledeb ameliorated the impaired glucose metabolism significantly. Further study indicated that FC could regulate the insulin signal pathway to improve insulin resistance. Moreover, it could upregulate PPARγ with the similar efficacy as pioglitazone (Piog) straightway. FC also decreased the endogenous ROS and MDA content, increased SOD activity and Nrf2 expression to facilitate oxidative homeostasis. It attenuated expression and secretion of inflammatory cytokines obviously. At last, our results indicated JNK/PI3K/Akt pathway was regulated by FC in adipocytes and adipose tissue. CONCLUSION FC could ameliorate glucose metabolism and improve IR. It exerted these effects by suppressing oxidative stress and inflammation. FC from Agrimonia pilosa Ledeb has a good prospect to be drugs or functional foods for IR and T2DM.
Collapse
Affiliation(s)
- Tingwang Guo
- Department of Gastroenterology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, China
| | - Yun Pan
- Department of Gastroenterology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing, China.
| | - Lin Yang
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, China
| | - Gang Chen
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, China
| | - Jia Deng
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, China
| | - Liancai Zhu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.
| |
Collapse
|
6
|
Fang A, Zhang R, Qiao W, Peng T, Qin Y, Wang J, Tian B, Yu Y, Sun W, Yang Y, Bi C. Sensitivity Baselines, Resistance Monitoring, and Molecular Mechanisms of the Rice False Smut Pathogen Ustilaginoidea virens to Prochloraz and Azoxystrobin in Four Regions of Southern China. J Fungi (Basel) 2023; 9:832. [PMID: 37623603 PMCID: PMC10456073 DOI: 10.3390/jof9080832] [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: 06/19/2023] [Revised: 07/25/2023] [Accepted: 08/04/2023] [Indexed: 08/26/2023] Open
Abstract
Rice false smut caused by Ustilaginoidea virens is one of the most devastating fungal diseases of rice (Oryza sativa) worldwide. Prochloraz and azoxystrobin belong to the groups of demethylation inhibitors and quinone outside inhibitors, respectively, and are commonly used for controlling this disease. In this study, we analyzed the sensitivities of 100 U. virens isolates from Yunnan, Sichuan, Chongqing, and Zhejiang in Southern China to prochloraz and azoxystrobin. The ranges of EC50 for prochloraz and azoxystrobin were 0.004-0.536 and 0.020-0.510 μg/mL, with means and standard errors of 0.062 ± 0.008 and 0.120 ± 0.007 μg/mL, respectively. However, the sensitivity frequency distributions of U. virens to prochloraz and azoxystrobin indicated the emergence of subpopulations with decreased sensitivity. Therefore, the mean EC50 values of 74% and 68% of the isolates at the main peak, 0.031 ± 0.001 and 0.078 ± 0.004 μg/mL, were used as the sensitivity baselines of U. virens to prochloraz and azoxystrobin, respectively. We found significant sensitivity differences to azoxystrobin among different geographical populations and no correlation between the sensitivities of U. virens to prochloraz and azoxystrobin. Among 887 U. virens isolates, the isolate 5-3-1 from Zhejiang showed moderate resistance to prochloraz, with a resistance factor of 22.45, while no nucleotide variation in the 1986-bp upstream or 1827-bp gene regions of CYP51 from 5-3-1 was detected. Overexpression of CYP51 is probably responsible for its resistance to prochloraz. Finally, artificial inoculation showed that 5-3-1 was highly pathogenic to rice, suggesting that the resistance of U. virens to prochloraz must be monitored and managed in Zhejiang.
Collapse
Affiliation(s)
- Anfei Fang
- College of Plant Protection, Southwest University, 2 Tiansheng Rd., Beibei District, Chongqing 400715, China; (A.F.); (R.Z.); (W.Q.); (T.P.); (Y.Q.); (J.W.); (B.T.); (Y.Y.)
| | - Ruixuan Zhang
- College of Plant Protection, Southwest University, 2 Tiansheng Rd., Beibei District, Chongqing 400715, China; (A.F.); (R.Z.); (W.Q.); (T.P.); (Y.Q.); (J.W.); (B.T.); (Y.Y.)
| | - Wei Qiao
- College of Plant Protection, Southwest University, 2 Tiansheng Rd., Beibei District, Chongqing 400715, China; (A.F.); (R.Z.); (W.Q.); (T.P.); (Y.Q.); (J.W.); (B.T.); (Y.Y.)
| | - Tao Peng
- College of Plant Protection, Southwest University, 2 Tiansheng Rd., Beibei District, Chongqing 400715, China; (A.F.); (R.Z.); (W.Q.); (T.P.); (Y.Q.); (J.W.); (B.T.); (Y.Y.)
| | - Yubao Qin
- College of Plant Protection, Southwest University, 2 Tiansheng Rd., Beibei District, Chongqing 400715, China; (A.F.); (R.Z.); (W.Q.); (T.P.); (Y.Q.); (J.W.); (B.T.); (Y.Y.)
| | - Jing Wang
- College of Plant Protection, Southwest University, 2 Tiansheng Rd., Beibei District, Chongqing 400715, China; (A.F.); (R.Z.); (W.Q.); (T.P.); (Y.Q.); (J.W.); (B.T.); (Y.Y.)
| | - Binnian Tian
- College of Plant Protection, Southwest University, 2 Tiansheng Rd., Beibei District, Chongqing 400715, China; (A.F.); (R.Z.); (W.Q.); (T.P.); (Y.Q.); (J.W.); (B.T.); (Y.Y.)
| | - Yang Yu
- College of Plant Protection, Southwest University, 2 Tiansheng Rd., Beibei District, Chongqing 400715, China; (A.F.); (R.Z.); (W.Q.); (T.P.); (Y.Q.); (J.W.); (B.T.); (Y.Y.)
| | - Wenxian Sun
- College of Plant Protection, Jilin Agricultural University, Changchun 130118, China;
| | - Yuheng Yang
- College of Plant Protection, Southwest University, 2 Tiansheng Rd., Beibei District, Chongqing 400715, China; (A.F.); (R.Z.); (W.Q.); (T.P.); (Y.Q.); (J.W.); (B.T.); (Y.Y.)
| | - Chaowei Bi
- College of Plant Protection, Southwest University, 2 Tiansheng Rd., Beibei District, Chongqing 400715, China; (A.F.); (R.Z.); (W.Q.); (T.P.); (Y.Q.); (J.W.); (B.T.); (Y.Y.)
| |
Collapse
|
7
|
Idris NFB, Jia Q, Lu H, Guo Y, Wang Y, Hao R, Tu Z. Reduced Survival and Resistance of Rhodotorula mucilaginosa Following Inhibition of Pigment Production by Naftifine. Curr Microbiol 2023; 80:285. [PMID: 37452917 DOI: 10.1007/s00284-023-03388-9] [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] [Received: 09/13/2022] [Accepted: 06/26/2023] [Indexed: 07/18/2023]
Abstract
Pigments produced by micro-organisms could contribute to their pathogenesis and resistance. The investigation into the red pigment of R. mucilaginosa and its ability to survive and resist has not yet been explored. This study aimed to investigate the survival and resistance of the R. mucilaginosa CQMU1 strain following inhibition of pigment production by naftifine and its underlying mechanism. The red-pigmented Rhodotorula mucilaginosa CQMU1 yeast was isolated from an infected toenail of a patient with onychomycosis. Cultivation of R. mucilaginosa in liquid and solid medium showed the effect of naftifine after treatment. Then, analysis of phagocytosis and tolerance to heat or chemicals of R. mucilaginosa was used to evaluate the survival and resistance of yeast to different treatments. Naftifine reversibly inhibited the pigmentation of R. mucilaginosa CQMU1 in solid and liquid media. Depigmented R. mucilaginosa CQMU1 showed increased susceptibility toward murine macrophage cells RAW264.7 and reduced resistance toward different types of chemicals, such as 1.5-M NaCl and 0.5% Congo red. Inhibition of pigment production by naftifine affected the survival and growth of R. mucilaginosa and its resistance to heat and certain chemicals. The results obtained could further elucidate the target of new mycosis treatment.
Collapse
Affiliation(s)
- Nur Fazleen Binti Idris
- Department of pathogen biology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Qianying Jia
- Department of Infectious Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Chongqing Nursing Vocational College, Chongqing, 402763, China
| | - He Lu
- Department of pathogen biology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Yanan Guo
- Department of pathogen biology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Yang Wang
- Department of pathogen biology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Rui Hao
- Department of pathogen biology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Zeng Tu
- Department of pathogen biology, College of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China.
| |
Collapse
|
8
|
Xia K, Lv Z, Liu K, Lu Z, Zhou C, Zhu H, Chen X. Global contextual attention augmented YOLO with ConvMixer prediction heads for PCB surface defect detection. Sci Rep 2023; 13:9805. [PMID: 37328545 DOI: 10.1038/s41598-023-36854-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 06/11/2023] [Indexed: 06/18/2023] Open
Abstract
To solve the problem of missed and false detection caused by the large number of tiny targets and complex background textures in a printed circuit board (PCB), we propose a global contextual attention augmented YOLO model with ConvMixer prediction heads (GCC-YOLO). In this study, we apply a high-resolution feature layer (P2) to gain more details and positional information of small targets. Moreover, in order to suppress the background noisy information and further enhance the feature extraction capability, a global contextual attention module (GC) is introduced in the backbone network and combined with a C3 module. Furthermore, in order to reduce the loss of shallow feature information due to the deepening of network layers, a bi-directional weighted feature pyramid (BiFPN) feature fusion structure is introduced. Finally, a ConvMixer module is introduced and combined with the C3 module to create a new prediction head, which improves the small target detection capability of the model while reducing the parameters. Test results on the PCB dataset show that GCC-YOLO improved the Precision, Recall, mAP@0.5, and mAP@0.5:0.95 by 0.2%, 1.8%, 0.5%, and 8.3%, respectively, compared to YOLOv5s; moreover, it has a smaller model volume and faster reasoning speed compared to other algorithms.
Collapse
Affiliation(s)
- Kewen Xia
- School of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Zhongliang Lv
- School of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China.
| | - Kang Liu
- School of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Zhenyu Lu
- School of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Chuande Zhou
- School of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China.
| | - Hong Zhu
- School of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| | - Xuanlin Chen
- School of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing, 401331, China
| |
Collapse
|
9
|
Yang Z, Luo Y, Xia X, He J, Zhang J, Zeng Q, Li D, Ma B, Zhang S, Zhai C, Chen M, He N. Dehydrogenase MnGutB1 catalyzes 1-deoxynojirimycin biosynthesis in mulberry. Plant Physiol 2023; 192:1307-1320. [PMID: 36800200 PMCID: PMC10231399 DOI: 10.1093/plphys/kiad065] [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] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/04/2023] [Indexed: 06/01/2023]
Abstract
As the prevalence of diabetes continues to increase, the number of individuals living with diabetes complications will reach an unprecedented magnitude. Continuous use of some synthetic agents to reduce blood glucose levels causes severe side effects, and thus, the demand for nontoxic, affordable drugs persists. Naturally occurring compounds, such as iminosugars derived from the mulberry (Morus spp.), have been shown to reduce blood glucose levels. In mulberry, 1-deoxynojirimycin (DNJ) is the predominant iminosugar. However, the mechanism underlying DNJ biosynthesis is not completely understood. Here, we showed that DNJ in mulberry is derived from sugar and catalyzed through 2-amino-2-deoxy-D-mannitol (ADM) dehydrogenase MnGutB1. Combining both targeted and nontargeted metabolite profiling methods, DNJ and its precursors ADM and nojirimycin (NJ) were quantified in mulberry samples from different tissues. Purified His-tagged MnGutB1 oxidized the hexose derivative ADM to form the 6-oxo compound DNJ. The mutant MnGutB1 D283N lost this remarkable capability. Furthermore, in contrast to virus-induced gene silencing of MnGutB1 in mulberry leaves that disrupted the biosynthesis of DNJ, overexpression of MnGutB1 in hairy roots and light-induced upregulation of MnGutB1 enhanced DNJ accumulation. Our results demonstrated that hexose derivative ADM, rather than lysine derivatives, is the precursor in DNJ biosynthesis, and it is catalyzed by MnGutB1 to form the 6-oxo compound. These results represent a breakthrough in producing DNJ and its analogs for medical use by metabolic engineering or synthetic biology.
Collapse
Affiliation(s)
- Zhen Yang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Yiwei Luo
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Xiaoyu Xia
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Jinzhi He
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Jiajia Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Qiwei Zeng
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Dong Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Bi Ma
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Shaoyu Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Changxin Zhai
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Miao Chen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Ningjia He
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| |
Collapse
|
10
|
Xia K, Lv Z, Zhou C, Gu G, Zhao Z, Liu K, Li Z. Mixed Receptive Fields Augmented YOLO with Multi-Path Spatial Pyramid Pooling for Steel Surface Defect Detection. Sensors (Basel) 2023; 23:s23115114. [PMID: 37299841 DOI: 10.3390/s23115114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/16/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023]
Abstract
Aiming at the problems of low detection efficiency and poor detection accuracy caused by texture feature interference and dramatic changes in the scale of defect on steel surfaces, an improved YOLOv5s model is proposed. In this study, we propose a novel re-parameterized large kernel C3 module, which enables the model to obtain a larger effective receptive field and improve the ability of feature extraction under complex texture interference. Moreover, we construct a feature fusion structure with a multi-path spatial pyramid pooling module to adapt to the scale variation of steel surface defects. Finally, we propose a training strategy that applies different kernel sizes for feature maps of different scales so that the receptive field of the model can adapt to the scale changes of the feature maps to the greatest extent. The experiment on the NEU-DET dataset shows that our model improved the detection accuracy of crazing and rolled in-scale, which contain a large number of weak texture features and are densely distributed by 14.4% and 11.1%, respectively. Additionally, the detection accuracy of inclusion and scratched defects with prominent scale changes and significant shape features was improved by 10.5% and 6.6%, respectively. Meanwhile, the mean average precision value reaches 76.8%, compared with the YOLOv5s and YOLOv8s, which increased by 8.6% and 3.7%, respectively.
Collapse
Affiliation(s)
- Kewen Xia
- College of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Zhongliang Lv
- College of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Chuande Zhou
- College of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Guojun Gu
- College of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Zhiqiang Zhao
- College of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Kang Liu
- College of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Zelun Li
- College of Mechanical and Power Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| |
Collapse
|
11
|
Yu J, Guo F, Yu B, Jiang X. Inhibition/Promotion Effect of C 6F 12O Addition on Premixed Laminar RP-3/Air Flames. ACS Omega 2023; 8:3429-3440. [PMID: 36713687 PMCID: PMC9878634 DOI: 10.1021/acsomega.2c07354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 12/23/2022] [Indexed: 06/18/2023]
Abstract
C6F12O (Novec 1230) is one of the most potential substitutes of Halon 1301. However, the study of inhibition/promotion effect of C6F12O addition on aviation kerosene is rarely reported, which greatly limits the development and application of C6F12O in oil fire accidents. In this study, numerical research was conducted to study the inhibition/promotion effect of C6F12O addition by a newly developed and optimized RP-3/C6F12O coupling skeletal mechanism. A novel methodology based on fictitious species was proposed and adopted to identify the physical dilution and thermal effects as well as the chemical radical and thermal interaction effects of C6F12O addition. It is observed that both inhibition and promotion effects can be exhibited because the chemical effect includes radical and thermal interactions at different equivalence ratios. In order to explore the kinetic reasons, the reaction path analyses were conducted. The results indicate that the HF formation reactions and the O2 consumption fluorine-containing reactions, as well as the reactions of H2O + F = OH + HF and C3F7 + O2 = C3F7O + O, were the key inhibition and promotion reaction routes, respectively. Compared with methane, the lower H/C ratio of RP-3 makes it more suitable for the use of C6F12O to suppress combustion.
Collapse
Affiliation(s)
- Jin Yu
- Petroleum,
Oil&Lubricants Department in Army Logistics Academy of PLA, Chongqing401331, China
- School
of Aeronautics, Chongqing Jiaotong University, Chongqing400074, China
- Chongqing
Key Laboratory of Green Aviation Energy and Power, Chongqing401120, China
- The
Green Aerotechnics Research Institute of Chongqing Jiaotong University, Chongqing401120, China
| | - Fanjun Guo
- School
of Aeronautics, Chongqing Jiaotong University, Chongqing400074, China
| | - Binbin Yu
- Petroleum,
Oil&Lubricants Department in Army Logistics Academy of PLA, Chongqing401331, China
| | - Xinsheng Jiang
- Petroleum,
Oil&Lubricants Department in Army Logistics Academy of PLA, Chongqing401331, China
| |
Collapse
|
12
|
Zhou B, Huang H, Gui F, Bi S, Du H, Cao L. Enhancement of intestinal mucosal immunity and immune response to the foot-and-mouth disease vaccine by oral administration of danggui buxue decoction. Front Vet Sci 2022; 9:1045152. [PMID: 36425118 PMCID: PMC9679645 DOI: 10.3389/fvets.2022.1045152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 10/13/2022] [Indexed: 11/10/2022] Open
Abstract
This study investigated the effect of Danggui Buxue decoction (DBD) on the immunity of an O-type foot-and-mouth disease (FMD) vaccine and intestinal mucosal immunity. SPF KM mice were continuously and orally administered DBD for 5 d and then inoculated with an O-type FMD vaccine. The contents of a specific IgG antibody and its isotypes IgG1, IgG2a, IgG2b, and IgG3 in serum and SIgA in duodenal mucosa were determined by ELISA at 1 and 3 W after the 2nd immunization. qRT-PCR was used to detect mRNA expression levels of IL-4, IL-10, IFN-γ, and IL-33 in the spleen, and mRNA expression levels of J-chain, pIgR, BAFF, APRIL, IL-10, IFN-γ and IL-33 in the duodenum. The results showed that compared with the control group, oral administration of DBD significantly increased levels of the anti-FMD virus (FMDV)-specific antibodies IgG, IgG1, and IgG2a in the serum of O-type FMD vaccine-immunized mice 1 W after the 2nd immunization (P < 0.05), upregulated mRNA expression levels of spleen lymphocyte cytokines IL-4 and IL-33 (P < 0.05), promoted the secretion of SIgA in duodenal mucosa (P < 0.05). The mRNA expression levels of J-chain, pIgR, BAFF, APRIL, IL-10, and IL-33 in duodenal tissues were upregulated (P < 0.05). This study indicates that DBD has a good promotion effect on the O-type FMD vaccine and the potential to be an oral immune booster.
Collapse
Affiliation(s)
- Bingxin Zhou
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Huan Huang
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Fuxing Gui
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Shicheng Bi
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
- Immunology Research Center, Medical Research Institute, Southwest University, Rongchang, Chongqing, China
- Chongqing Engineering Research Center of Veterinary Medicine, Chongqing, China
| | - Hongxu Du
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
- Chongqing Engineering Research Center of Veterinary Medicine, Chongqing, China
- Chi Institute of Traditional Chinese Veterinary Medicine, Southwest University, Chongqing, China
| | - Liting Cao
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
- Chongqing Engineering Research Center of Veterinary Medicine, Chongqing, China
- Chi Institute of Traditional Chinese Veterinary Medicine, Southwest University, Chongqing, China
- *Correspondence: Liting Cao
| |
Collapse
|
13
|
Guan Y, Wang R, Chen N, Zhu Y, Han L, Chen X, Li J, Zhang Y. Functional characterization of a gamma-glutamyl phosphate reductase ProA in proline biosynthesis and promoting expression of type three secretion system in Ralstonia solanacearum. Front Microbiol 2022; 13:945831. [PMID: 36106083 PMCID: PMC9465252 DOI: 10.3389/fmicb.2022.945831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/05/2022] [Indexed: 11/24/2022] Open
Abstract
Ralstonia solanacearum RSc2741 has been predicted as a gamma-glutamyl phosphate reductase ProA catalyzing the second reaction of proline formation from glutamate. Here, we experimentally demonstrated that proA mutants were proline auxotrophs that failed to grow in a minimal medium, and supplementary proline, but not glutamate, fully restored the diminished growth, confirming that ProA is responsible for the biosynthesis of proline from glutamate in R. solanacearum. ProA was previously identified as one of the candidates regulating the expression of genes for type three secretion system (T3SS), one of the essential pathogenicity determinants of R. solanacearum. Supplementary proline significantly enhanced the T3SS expression both in vitro and in planta, indicating that proline is a novel inducer of the T3SS expression. Deletion of proA substantially impaired the T3SS expression both in vitro and in planta even under proline-supplemented conditions, indicating that ProA plays additional roles apart from proline biosynthesis in promoting the expression of the T3SS genes. It was further revealed that the involvement of ProA in the T3SS expression was mediated through the pathway of PrhG-HrpB. Both the proA mutants and the wild-type strain grew in the intercellular spaces of tobacco leaves, while their ability to invade and colonize tobacco xylem vessels was substantially impaired, which was about a 1-day delay for proA mutants to successfully invade xylem vessels and was about one order of magnitude less than the wild-type strain to proliferate to the maximum densities in xylem vessels. It thus resulted in substantially impaired virulence of proA mutants toward host tobacco plants. The impaired abilities of proA mutants to invade and colonize xylem vessels were not due to possible proline insufficiency in the rhizosphere soil or inside the plants. All taken together, these results extend novel insights into the understanding of the biological function of ProA and sophisticated regulation of the T3SS and pathogenicity in R. solanacearum.
Collapse
Affiliation(s)
- Yue Guan
- College of Resources and Environment, Southwest University, Chongqing, China
| | - Rongsheng Wang
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Nan Chen
- College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing, China
| | - Yalan Zhu
- College of Resources and Environment, Southwest University, Chongqing, China
| | - Liangliang Han
- College of Resources and Environment, Southwest University, Chongqing, China
| | - Xinping Chen
- College of Resources and Environment, Southwest University, Chongqing, China
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Southwest University, Chongqing, China
| | - Jing Li
- The Ninth People’s Hospital of Chongqing, Chongqing, China
- *Correspondence: Jing Li,
| | - Yong Zhang
- College of Resources and Environment, Southwest University, Chongqing, China
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Southwest University, Chongqing, China
| |
Collapse
|
14
|
Xue W, Zhang J, Zhu Y, Huang W. Identify Functional lncRNAs in Nonalcoholic Fatty Liver Disease by Constructing a ceRNA Network. ACS Omega 2022; 7:22522-22530. [PMID: 35811919 PMCID: PMC9260751 DOI: 10.1021/acsomega.2c01801] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Aim: To identify functional long noncoding RNAs (lncRNAs) by constructing a NAFLD-related lncRNA-miRNA-mRNA network (NLMMN) based on the hypothesis that lncRNAs, as competitive endogenous RNAs (ceRNAs), are able to regulate mRNA functions by competitive binding to shared miRNAs. Methods: The "Limma R package" was used to identify differentially expressed lncRNAs and mRNAs (DElncRNAs and DEmRNAs). The "miRcode online tool" was used to predict the potential interactions between DElncRNAs or DEmRNAs using Perl, and "multiMiR R package" was used to predict the potential interactions between DElncRNAs and miRNAs. The NLMMN was viewed by Cytoscape. The DEmRNAs were further analyzed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. The real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) was used to identify functional lncRNAs in human liver tissue and FFAs-induced fat-overloading HepG2 cells. The role of functional lncRNA was explored in the HepG2 cell line. Results: A total of 336 DElncRNAs (154 upregulated and 182 downregulated, |log 2 (fold change) |>0.655 and P < 0.05) and 399 DEmRNAs (152 upregulated and 247 downregulated, |log 2 (fold change) |>0.608 and P < 0.05) were identified. A total of 142 DElncRNA-miRNA interaction pairs and 643 miRNA-DEmRNA interaction pairs were retained to construct the NLMMN, which contained 19 lncRNAs, 47 miRNAs, and 228 mRNAs. The results of GO and KEGG enrichment analyses were related to an extracellular matrix (ECM). Two upregulated lncRNAs (LINC00240 and RBMS3-AS3) and one downregulated lncRNA (ALG9-IT1) were identified by qRT-PCR in liver tissues. But only LINC00240 was significantly upregulated in fat-overloading HepG2 cells. Overexpression of LINC00240 did not affect lipid accumulation but increased the reactive oxygen species (ROS) content in HepG2 cells. Conclusion: LINC00240, RBMS3-AS3, and ALG9-IT1 might be novel functional lncRNAs that attenuate liver fibrosis in NAFLD by influencing the ECM through the ceRNA network. Among them, LINC00240 might have a key role.
Collapse
Affiliation(s)
- Wei Xue
- Chongqing
Key Laboratory of Infectious Diseases and Parasitic Diseases, Department
of Infectious Diseases, The First Affiliated
Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing 400016, China
| | - Jia Zhang
- Chongqing
Key Laboratory of Infectious Diseases and Parasitic Diseases, Department
of Infectious Diseases, The First Affiliated
Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing 400016, China
| | - Yali Zhu
- Chongqing
Key Laboratory of Infectious Diseases and Parasitic Diseases, Department
of Infectious Diseases, The First Affiliated
Hospital of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing 400016, China
| | - Wenxiang Huang
- Department
of Geriatrics, The First Affiliated Hospital
of Chongqing Medical University, No. 1 Youyi Road, Yuzhong District, Chongqing 400016, China
| |
Collapse
|
15
|
Wu Z, Deng J, Zhou H, Tan W, Lin L, Yang J. Programmed Cell Death in Sepsis Associated Acute Kidney Injury. Front Med (Lausanne) 2022; 9:883028. [PMID: 35655858 PMCID: PMC9152147 DOI: 10.3389/fmed.2022.883028] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 03/21/2022] [Indexed: 01/15/2023] Open
Abstract
Sepsis-associated acute kidney injury (SA-AKI) is common in patients with severe sepsis, and has a high incidence rate and high mortality rate in ICU patients. Most patients progress to AKI before drug treatment is initiated. Early studies suggest that the main mechanism of SA-AKI is that sepsis leads to vasodilation, hypotension and shock, resulting in insufficient renal blood perfusion, finally leading to renal tubular cell ischemia and necrosis. Research results in recent years have shown that programmed cell death such as apoptosis, necroptosis, pyroptosis and autophagy play important roles. In the early stage of sepsis-related AKI, autophagy bodies form and inhibit various types of programmed cell death. With the progress of disease, programmed cell death begins. Apoptosis promoter represents caspase-8-induced apoptosis and apoptosis effector represents caspase-3-induced apoptosis, however, caspase-11 and caspase-1 regulate gasdermin D-mediated pyroptosis. Caspase-8 and receptor interacting kinase 1 bodies mediate necroptosis. This review focuses on the pathophysiological mechanisms of various programmed cell death in sepsis-related AKI.
Collapse
Affiliation(s)
- Zhifen Wu
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Junhui Deng
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongwen Zhou
- Department of Nephrology, Chongqing Liangping District People's Hospital, Chongqing, China
| | - Wei Tan
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lirong Lin
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jurong Yang
- Department of Nephrology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
16
|
Bi S, Qu Y, Shao J, Zhang J, Li W, Zhang L, Ni J, Cao L. Ginsenoside Rg3 Ameliorates Stress of Broiler Chicks Induced by Escherichia coli Lipopolysaccharide. Front Vet Sci 2022; 9:878018. [PMID: 35464384 PMCID: PMC9024239 DOI: 10.3389/fvets.2022.878018] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 03/09/2022] [Indexed: 11/30/2022] Open
Abstract
In broiler chicks, Escherichia coli lipopolysaccharide is a prominent cause for inflammatory damage and loss of immune homeostasis in broiler chicks. Ginsenosides have been shown to have anti-inflammatory and antioxidant effects. However, it has not been demonstrated that ginsenosides protect broiler chicks against stress induced by Escherichia coli lipopolysaccharide challenge. The aim of this is to investigate the protective effect of ginsenosides Rg1, Re, and Rg3 on Escherichia coli lipopolysaccharide-induced stress. Our results showed that Rg3 ameliorated growth inhibition and fever, as well as decreased the production of stress-related hormones in broilers with stress. The protective effect of Rg3 on the stressed chicks may be largely mediated by regulating inflammatory response and oxidative damage. Moreover, real-time quantitative-polymerase chain reaction (RT-qPCR) results demonstrated that Rg3 upregulated mRNA expression of mTOR, HO-1, and SOD-1. These results suggested that ginsenoside Rg3 and ginsenoside products contains Rg3 deserve further study for the control of immunological stress and inflammation in broiler chicks.
Collapse
Affiliation(s)
- Shicheng Bi
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
- *Correspondence: Shicheng Bi
| | - Yiwen Qu
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Jianjian Shao
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Jianrong Zhang
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Weihao Li
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Li Zhang
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Jingxuan Ni
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Liting Cao
- Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China
| |
Collapse
|
17
|
Chen T, Min Y, Yang X, Gong H, Tian X, Liu L, Hou Y, Fu W. Designing CoS 1.035 Nanoparticles Anchored on N-Doped Carbon Dodecahedron as Dual-Enzyme Mimics for the Colorimetric Detection of H 2O 2 and Glutathione. ACS Omega 2022; 7:11135-11147. [PMID: 35415371 PMCID: PMC8991929 DOI: 10.1021/acsomega.1c07264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 03/01/2022] [Indexed: 06/14/2023]
Abstract
In recent years, the exploration of the nanozyme, an artificial enzyme with the structure and function of natural enzymes, has become a hot topic in this field. Although significant progress has been made, it is still a huge challenge to design nanozymes with multiple enzyme-like catalytic activities. In this work, we have successfully fabricated a colorimetric sensing platform to mimic peroxidase-like and oxidase-like activities by the CoS1.035 nanoparticles decorated N-doped carbon framework porous dodecahedrons (abbreviated to CoS1.035/N-C PDHs). And the catalytic mechanism of CoS1.035/N-C PDHs toward the peroxidase-like and oxidase-like activities is systematically explored. The results display that CoS1.035/N-C PDHs can catalyze the oxidation of the colorless substrate 3,3,'5,5'-tetramethylbenzidine (TMB) into blue oxidized TMB (ox-TMB) by disintegrating H2O2 or the physically/chemically absorbed O2 into different ROS species (·OH or O2 ·-) in the presence or absence of H2O2. Therefore, on the basis of the dual-enzyme mimic activities of CoS1.035/N-C PDHs, the bifunctional colorimetric sensing platform is established for H2O2 detection with a wide linear range of 0.5-120 μM and glutathione detection with a linear range of 1-60 μM, respectively. This work provides an efficient platform for dual-enzyme mimics, expanding the application prospect of Co-based chalcogenides as enzyme mimics in biosensing, medical diagnosis, and environment monitoring.
Collapse
Affiliation(s)
- Tao Chen
- Chongqing
Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Yuanhong Min
- Chongqing
Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Xiao Yang
- Chongqing
Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Hao Gong
- Chongqing
Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Xiaoying Tian
- Chongqing
Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Li Liu
- Chongqing
Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Yanhua Hou
- Chongqing
Engineering Research Center of Pharmaceutical Sciences, Chongqing Medical and Pharmaceutical College, Chongqing 401331, China
| | - Wensheng Fu
- Chongqing
Key Laboratory of Green Synthesis and Applications, College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| |
Collapse
|
18
|
Song Y, Liu R, Wang Z, Xu H, Ma Y, Fan F, Voznyy O, Du J. Enhanced emission directivity from asymmetrically strained colloidal quantum dots. Sci Adv 2022; 8:eabl8219. [PMID: 35196093 PMCID: PMC8865764 DOI: 10.1126/sciadv.abl8219] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
Current state-of-the-art quantum dot light-emitting diodes have reached close to unity internal quantum efficiency. Further improvement in external quantum efficiency requires more efficient photon out-coupling. Improving the directivity of the photon emission is considered to be the most feasible approach. Here, we report improved emission directivity from colloidal quantum dot films. By growing an asymmetric compressive shell, we are able to lift their band-edge state degeneracy, which leads to an overwhelming population of exciton with in-plane dipole moment, as desired for high-efficiency photon out-coupling. The in-plane dipole proportion determined by back-focal plane imaging method is 88%, remarkably higher than 70% obtained from conventional hydrostatically strained colloidal quantum dots. Enhanced emission directivity obtained here opens a path to increasing the external quantum efficiencies notably.
Collapse
Affiliation(s)
- Yang Song
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Microscale Magnetic Resonance, University of Science and Technology of China, Hefei 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Ruixiang Liu
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Microscale Magnetic Resonance, University of Science and Technology of China, Hefei 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Zhibo Wang
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada
| | - Huaiyu Xu
- CAS Key Laboratory of Microscale Magnetic Resonance, University of Science and Technology of China, Hefei 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Yong Ma
- College of Photoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
- State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China
| | - Fengjia Fan
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Microscale Magnetic Resonance, University of Science and Technology of China, Hefei 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Oleksandr Voznyy
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada
| | - Jiangfeng Du
- Hefei National Laboratory for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Microscale Magnetic Resonance, University of Science and Technology of China, Hefei 230026, China
- CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| |
Collapse
|
19
|
Zhou W, Yang F, Li S, Yuan R, Xiang Y. Stimulus-responsive hexahedron DNA framework facilitates targeted and direct delivery of native anticancer protein into cancer cells. Chem Sci 2022; 13:11132-11139. [PMID: 36320481 PMCID: PMC9516948 DOI: 10.1039/d2sc02858a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/08/2022] [Indexed: 11/30/2022] Open
Abstract
The targeted and direct intracellular delivery of proteins plays critical roles in biological research and disease treatments, yet remains highly challenging. Current solutions to such a challenge are limited by the modification of proteins that may potentially alter protein functions inside cells or the lack of targeting capability. Herein, we develop a stimulus-responsive and bivalent aptamer hexahedron DNA framework (HDF) for the targeted and direct delivery of native therapeutic proteins into cancer cells. The unmodified proteins are caged inside the HDF nanostructures assembled from six programmable single stranded DNAs to protect the proteins from degradation by cathepsins and enhance their targeting capability and delivery efficiency with the nanostructure-integrated aptamers. In addition, the protein drugs can be selectively released from the HDF nanostructures by the intracellular ATP molecules to induce tumor cell apoptosis, highlighting their promising application potential for cell biology and precise protein medicines. A bivalent aptamer hexahedron DNA framework can facilitate the targeted intracellular delivery of native RNase A to result in effective cancer cell apoptosis.![]()
Collapse
Affiliation(s)
- Wenjiao Zhou
- School of Chemistry and Chemical Engineering, Chongqing University of Technology Chongqing 400054 P. R. China
| | - Fang Yang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 P. R. China
| | - Shunmei Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 P. R. China
| | - Ruo Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 P. R. China
| | - Yun Xiang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University Chongqing 400715 P. R. China
| |
Collapse
|
20
|
Tang F, Wang P, He M, Isobe M, Gu G, Li Q, Zhang L, Smet JH. Two-Dimensional Quantum Hall Effect and Zero Energy State in Few-Layer ZrTe 5. Nano Lett 2021; 21:5998-6004. [PMID: 34251198 PMCID: PMC8397394 DOI: 10.1021/acs.nanolett.1c00958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/30/2021] [Indexed: 05/30/2023]
Abstract
Topological matter plays a central role in today's condensed matter research. Zirconium pentatelluride (ZrTe5) has attracted attention as a Dirac semimetal at the boundary of weak and strong topological insulators (TI). Few-layer ZrTe5 is anticipated to exhibit the quantum spin Hall effect due to topological states inside the band gap, but sample degradation inflicted by ambient conditions and processing has so far hampered the fabrication of high quality devices. The quantum Hall effect (QHE), serving as the litmus test for 2D systems to be considered of high quality, has not been observed so far. Only a 3D variant on bulk was reported. Here, we succeeded in preserving the intrinsic properties of thin films lifting the carrier mobility to ∼3500 cm2 V-1 s-1, sufficient to observe the integer QHE and a bulk band gap related zero-energy state. The magneto-transport results offer evidence for the gapless topological states within this gap.
Collapse
Affiliation(s)
- Fangdong Tang
- Max
Planck Institute for Solid State Research, Stuttgart 70569, Germany
| | - Peipei Wang
- Department
of Physics and Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Mingquan He
- Low
Temperature Physics Laboratory, College of Physics and Center of Quantum
Materials and Devices, Chongqing University, Chongqing 401331, China
| | - Masahiko Isobe
- Max
Planck Institute for Solid State Research, Stuttgart 70569, Germany
| | - Genda Gu
- Condensed
Matter Physics and Materials Science Division, Brookhaven National Laboratory, Upton, New York 11973-5000, United States
| | - Qiang Li
- Condensed
Matter Physics and Materials Science Division, Brookhaven National Laboratory, Upton, New York 11973-5000, United States
- Department
of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, United States
| | - Liyuan Zhang
- Department
of Physics and Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jurgen H. Smet
- Max
Planck Institute for Solid State Research, Stuttgart 70569, Germany
| |
Collapse
|
21
|
Dong Z, Ye L, Zhang Y, Chen Z, Li B, Zhang T, Zhao P. Identification of N-linked Glycoproteins in Silkworm Serum Using Con A Lectin Affinity Chromatography and Mass Spectrometry. J Insect Sci 2021; 21:6353166. [PMID: 34401920 PMCID: PMC8367846 DOI: 10.1093/jisesa/ieab057] [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] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Indexed: 06/13/2023]
Abstract
Glycosylation is one of the most common post-translational modifications to occur during protein biosynthesis, but remains poorly understood in insects. In this study, we collected serum proteins from two silkworm developmental stages, namely day 7 of the fifth instar larval stage and day 2 of the pupal stage. Results of SDS-PAGE and periodic acid-Schiff staining revealed that most serum proteins with high abundance were putative glycoproteins. LC-MS/MS identified 149 larval and 303 pupal serum proteins in the Con A lectin-enriched fractions. GO analysis revealed that many serum proteins were involved in the proteolysis and carbohydrate metabolic process. 82 N-linked glycoproteins with at least one glycosylation site were identified. N-Linked glycosylation occurred at the sequon, Asn-X-Ser/Thr, and the proportions of Ser and Thr glycosylation at the hydroxy position were found 39.6% and 60.3%, respectively. The N-glycan structures found in serum glycoproteins were mainly Man2FucGlcNAc2 (67.9%). Since storage protein 1 and transferrin had a relatively high abundance in the serum and could be significantly enriched by Con A lectin, their glycosylation was analyzed in detail. Glycoside hydrases, serine proteases and serpins were found to form three interacting glycoprotein networks using the website STRING. This study provides important clues for the understanding of the function of N-linked glycosylation in metabolism, immunity, and metamorphosis.
Collapse
Affiliation(s)
- Zhaoming Dong
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Biological Science Research Center, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Lin Ye
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Biological Science Research Center, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Yan Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Biological Science Research Center, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Zhiyong Chen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Biological Science Research Center, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Benchi Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Biological Science Research Center, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Tao Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Biological Science Research Center, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Ping Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Biological Science Research Center, Southwest University, Chongqing 400715, China
- Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| |
Collapse
|
22
|
Abstract
Cu2S-MoSe2 was selected as a gas-sensing material to detect NO2 and NH3. Based on density functional theory calculations, the adsorption structures, density of states, molecular orbit, and recovery time were studied to analyze the gas-sensing mechanism of Cu2S-MoSe2 to gases. Calculation results show that Cu2S clusters receive a stable doping structure on the MoSe2 surface. Compared with intrinsic MoSe2, Cu2S-MoSe2 shows more excellent adsorption performance to NO2 and NH3 due to the active feature of the Cu2S dopant. After NO2 and NH3 adsorption, the energy gap decreases, indicating an improvement of the conductivity, which is greatly significant for gas sensing. For double NH3 adsorption, the conductivity of the entire system increases more than that of a double NO2 adsorption system, signifying the sensitivity of Cu2S-MoSe2 is greater for NH3 than NO2. The results of theoretical recovery time show that Cu2S-MoSe2 is sensitive for NH3 detection at room temperature (298 K) and NO2 detection at high temperature (400 K).
Collapse
Affiliation(s)
- Yingang Gui
- Faculty
of Quality Management and Inspection & Quarantine, Yibin University, Yibin 644000, China
- College
of Engineering and Technology, Southwest
University, Chongqing 400715, China
| | - Shengyan Zhu
- Faculty
of Quality Management and Inspection & Quarantine, Yibin University, Yibin 644000, China
| | - Xianping Chen
- College
of Optoelectronic Engineering and Key Laboratory of Optoelectronic
Technology & Systems Education Ministry of China, Chongqing University, Chongqing 400044, China
| |
Collapse
|
23
|
Rolls ET, Cheng W, Du J, Wei D, Qiu J, Dai D, Zhou Q, Xie P, Feng J. Functional connectivity of the right inferior frontal gyrus and orbitofrontal cortex in depression. Soc Cogn Affect Neurosci 2021; 15:75-86. [PMID: 31993660 PMCID: PMC7171374 DOI: 10.1093/scan/nsaa014] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/30/2019] [Accepted: 01/20/2020] [Indexed: 01/13/2023] Open
Abstract
The orbitofrontal cortex extends into the laterally adjacent inferior frontal gyrus. We analyzed how voxel-level functional connectivity of the inferior frontal gyrus and orbitofrontal cortex is related to depression in 282 people with major depressive disorder (125 were unmedicated) and 254 controls, using FDR correction P < 0.05 for pairs of voxels. In the unmedicated group, higher functional connectivity was found of the right inferior frontal gyrus with voxels in the lateral and medial orbitofrontal cortex, cingulate cortex, temporal lobe, angular gyrus, precuneus, hippocampus and frontal gyri. In medicated patients, these functional connectivities were lower and toward those in controls. Functional connectivities between the lateral orbitofrontal cortex and the precuneus, posterior cingulate cortex, inferior frontal gyrus, ventromedial prefrontal cortex and the angular and middle frontal gyri were higher in unmedicated patients, and closer to controls in medicated patients. Medial orbitofrontal cortex voxels had lower functional connectivity with temporal cortex areas, the parahippocampal gyrus and fusiform gyrus, and medication did not result in these being closer to controls. These findings are consistent with the hypothesis that the orbitofrontal cortex is involved in depression, and can influence mood and behavior via the right inferior frontal gyrus, which projects to premotor cortical areas.
Collapse
Affiliation(s)
- Edmund T Rolls
- Institute of Science and Technology for Brain-inspired Intelligence, Fudan University, 200433, Shanghai, China
- Department of Computer Science, University of Warwick, CV4 7AL, Coventry, UK
- Oxford Centre for Computational Neuroscience, Oxford, UK
| | - Wei Cheng
- Institute of Science and Technology for Brain-inspired Intelligence, Fudan University, 200433, Shanghai, China
- Correspondence should be addressed to: Wei Cheng. E-mail:
| | - Jingnan Du
- Institute of Science and Technology for Brain-inspired Intelligence, Fudan University, 200433, Shanghai, China
| | - Dongtao Wei
- Department of Psychology, Southwest University, Chongqing, China
| | - Jiang Qiu
- Department of Psychology, Southwest University, Chongqing, China
- Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing, China
| | - Dan Dai
- Institute of Science and Technology for Brain-inspired Intelligence, Fudan University, 200433, Shanghai, China
| | - Qunjie Zhou
- Institute of Science and Technology for Brain-inspired Intelligence, Fudan University, 200433, Shanghai, China
| | - Peng Xie
- Institute of Neuroscience, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Neurobiology, Chongqing, China
- Department of Neurology, Yongchuan Hospital of Chongqing Medical University, 402160, Chongqing, China
| | - Jianfeng Feng
- Institute of Science and Technology for Brain-inspired Intelligence, Fudan University, 200433, Shanghai, China
- Department of Computer Science, University of Warwick, CV4 7AL, Coventry, UK
- School of Mathematical Sciences, School of Life Science and the Collaborative Innovation Center for Brain Science, Fudan University, 200433, Shanghai, China
| |
Collapse
|
24
|
Abstract
Analyses of landscape change patterns that are based on elevation and slope can not only provide reasonable interpretations of landscape patterns but can also help to reveal evolutionary laws. However, landscape change patterns and their model in different landforms of the typical watershed in the Three Gorges Reservoir Area (TGRA) has not been quantified and assessed effectively. As a complex geographical unit, the ecological environment in the middle reach of the Yangtze River has experienced great changes due to the construction of the Three Gorges Project (TGP) and its associated human activities. Here, based mainly on a digital elevation model (DEM) and remotely sensed images from 1986, 2000, 2010, and 2017 and by using GIS technology, speeds/ trends of landscape change, the index of landscape type change intensity, landscape pattern indices, and landscape ecological security index, the spatial and temporal evolution characteristics of different elevations, slopes, and buffer landscape types were analyzed in typical watersheds, as well as an evolutionary model of the landscape pattern. The results indicated that (1) the landscape types along with the land classification and buffer zone that were influenced by the TGR construction have undergone a phased change, with the period 2000-2010 being the most dramatic period of landscape evolution during the impoundment period; (2) landscape type shifts from human-dominated farmland to nature-driven forestland and shrub-land as elevations, slopes and buffer distances increased. The landscape has shifted from diversity to relative homogeneity; (3) land types and buffer zones played essential roles in the landscape pattern index, which is reflected in the differences in landscape type indices for spatial extension and temporal characteristics. The results of this paper illustrate the spatial-temporal characteristics of various landscape types at three distinct stages in the construction of the TGR. These findings indicate that the landscape ecological security of the watershed is improving year by year. The follow-up development of the TGRA needs to consider the landscape change patterns of different landforms.
Collapse
Affiliation(s)
- Ruikang Li
- Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
| | - Yangbing Li
- College of Geography and Tourism, Chongqing Normal University, Chongqing, 401331, China
- Key Laboratory of Surface Process and Environment Remote Sensing in the Three Gorges Reservoir Area, Chongqing Normal University, Chongqing, 401331, China
| | - Bo Li
- Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China.
| | - Dianji Fu
- The Research Center of Jinsha River Culture, School of Geographic Science and Tourism, Zhaotong University, Yunnan, 657000, China
| |
Collapse
|
25
|
Wang J, Ran LL, Li Y, Liu YH. Comparative proteomics provides insights into diapause program of Bactrocera minax (Diptera: Tephritidae). PLoS One 2021; 15:e0244493. [PMID: 33382763 PMCID: PMC7774860 DOI: 10.1371/journal.pone.0244493] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/10/2020] [Indexed: 12/20/2022] Open
Abstract
The Chinese citrus fly, Bactrocera minax, is a notorious univoltine pest that causes damage to citrus. B. minax enters obligatory pupal diapause in each generation to resist harsh environmental conditions in winter. Despite the enormous efforts that have been made in the past decade, the understanding of pupal diapause of B. minax is currently still fragmentary. In this study, the 20-hydroxyecdysone solution and ethanol solvent was injected into newly-formed pupae to obtain non-diapause- (ND) and diapause-destined (D) pupae, respectively, and a comparative proteomics analysis between ND and D pupae was performed 1 and 15 d after injection. A total of 3,255 proteins were identified, of which 190 and 463 were found to be differentially abundant proteins (DAPs) in ND1 vs D1 and ND15 vs D15 comparisons, respectively. The reliability and accuracy of LFQ method was validated by qRT-PCR. Functional analyses of DAPs, including Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment, and protein-protein interaction (PPI) network construction, were conducted. The results revealed that the diapause program of B. minax is closely associated with several physiological activities, such as phosphorylation, chitin biosynthesis, autophagy, signaling pathways, endocytosis, skeletal muscle formation, protein metabolism, and core metabolic pathways of carbohydrate, amino acid, and lipid conversion. The findings of this study provide insights into diapause program of B. minax and lay a basis for further investigation into its underlying molecular mechanisms.
Collapse
Affiliation(s)
- Jia Wang
- College of Plant Protection, Institute of Entomology, Southwest University, Chongqing, China
- * E-mail:
| | - Li-Lin Ran
- College of Plant Protection, Institute of Entomology, Southwest University, Chongqing, China
| | - Ying Li
- College of Plant Protection, Institute of Entomology, Southwest University, Chongqing, China
| | - Ying-Hong Liu
- College of Plant Protection, Institute of Entomology, Southwest University, Chongqing, China
| |
Collapse
|
26
|
Liu H, Lin Y, Zhang L. Hierarchical Porous MoS 2/C Nanospheres Self-Assembled by Nanosheets with High Electrochemical Energy Storage Performance. Nanoscale Res Lett 2020; 15:199. [PMID: 33057864 PMCID: PMC7561622 DOI: 10.1186/s11671-020-03427-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
To overcome the deficiency of the volume expansion of MoS2 as the anode material for lithium-ion batteries (LIBs), an effective strategy was developed to design hierarchical porous MoS2/carbon nanospheres via a facile, easy-operated hydrothermal method followed by annealing. FESEM and TEM images clearly showed that nanospheres are composed of ultra-thin MoS2/C nanosheets coated with carbon layer and possess an expanded interlayer spacing of 0.98 nm. As anodes for LIBs, MoS2/carbon nanospheres deliver an initial discharge capacity of 1307.77 mAh g-1 at a current density of 0.1 A g-1. Moreover, a reversible capacity of 612 mAh g-1 was obtained even at 2 A g-1 and a capacity retention of 439 mAh g-1 after 500 cycles at 1 A g-1. The improved electrochemical performance is ascribed to the hierarchical porous structure as well as the intercalation of carbon into lattice spacing of MoS2, which offers fast channels for ion/electron transport, relieves the influence of volume change and increases electrical conductivity of electrode. Meanwhile, the expanded interlayer spacing of MoS2 in MoS2/C can decrease the ion diffusion resistance and alleviate the volumetric expansion during discharge/charge cycles.
Collapse
Affiliation(s)
- Hongdong Liu
- Engineering Research Center of New Energy Storage Devices and Applications, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China
| | - Ye Lin
- Engineering Research Center of New Energy Storage Devices and Applications, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China
- College of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, People's Republic of China
| | - Lei Zhang
- College of Life Science, Chongqing Normal University, Chongqing, 401331, People's Republic of China.
| |
Collapse
|
27
|
Wang X, Wu X, Lu Z, Tao X. Comparative Study of Time-Resolved Fluorescent Nanobeads, Quantum Dot Nanobeads and Quantum Dots as Labels in Fluorescence Immunochromatography for Detection of Aflatoxin B 1 in Grains. Biomolecules 2020; 10:biom10040575. [PMID: 32283775 PMCID: PMC7226082 DOI: 10.3390/biom10040575] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/11/2020] [Accepted: 03/24/2020] [Indexed: 01/15/2023] Open
Abstract
Label selection is an essential procedure for improving the sensitivity of fluorescence immunochromatography assays (FICAs). Under optimum conditions, time-resolved fluorescent nanobeads (TRFN), quantum dots nanobeads (QB) and quantum dots (QD)-based immunochromatography assays (TRFN-FICA, QB-FICA and QD-FICA) were systematically and comprehensively compared for the quantitative detection of aflatoxin B1 (AFB1) in six grains (corn, soybeans, sorghum, wheat, rice and oat). All three FICAs can be applied as rapid, cost-effective and convenient qualitative tools for onsite screening of AFB1; TRFN-FICA exhibits the best performance with the least immune reagent consumption, shortest immunoassay duration and lowest limit of detection (LOD). The LODs for TRFN-FICA, QB-FICA and QD-FICA are 0.04, 0.30 and 0.80 μg kg−1 in six grains, respectively. Recoveries range from 83.64% to 125.61% at fortified concentrations of LOD, 2LOD and 4LOD, with the coefficient of variation less than 10.0%. Analysis of 60 field grain samples by three FICAs is in accordance with that of LC-MS/MS, and TRFN-FICA obtained the best fit. In conclusion, TRFN-FICA is more suitable for quantitative detection of AFB1 in grains when the above factors are taken into consideration.
Collapse
Affiliation(s)
- Xin Wang
- College of Food Science, Southwest University, Chongqing 400715, China;
| | - Xuan Wu
- Chongqing Animal Disease Prevention and Control Center, Chongqing 401120, China;
| | - Zhisong Lu
- Institute for Clean Energy & Advanced Materials, School of Materials & Energy, Southwest University, Chongqing 400715, China;
| | - Xiaoqi Tao
- College of Food Science, Southwest University, Chongqing 400715, China;
- Correspondence: ; Tel.: +86-18306008102
| |
Collapse
|
28
|
Wang M, Liu X, Shi L, Liu J, Shen G, Zhang P, Lu W, He L. Functional analysis of UGT201D3 associated with abamectin resistance in Tetranychus cinnabarinus (Boisduval). Insect Sci 2020; 27:276-291. [PMID: 30136378 PMCID: PMC7379272 DOI: 10.1111/1744-7917.12637] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 08/04/2018] [Accepted: 08/07/2018] [Indexed: 05/30/2023]
Abstract
Uridine diphosphate (UDP)-glycosyltransferases (UGTs) are widely distributed within living organisms and share roles in biotransformation of various lipophilic endo- and xenobiotics with activated UDP sugars. In this study, it was found that the activity of UGTs in abamectin-resistant (AbR) strain was significantly higher (2.35-fold) than that in susceptible strain (SS) of Tetranychus cinnabarinus. Further analysis showed that 5-nitrouracil, the inhibitor of UGTs, could enhance the lethal effect of abamectin on mites. From the previous microarray results, we found an UGT gene (UGT201D3) overexpressed in AbR strain. Quantitative PCR analysis showed that UGT201D3 was highly expressed and more inducible with abamectin exposure in the AbR strain. After silencing the transcription of UGT201D3, the activity of UGTs was decreased and the susceptibility to abamectin was increased in AbR strain whereas it was not in SS. Furthermore, UGT201D3 gene was then successfully expressed in Escherichia coli. The recombinant UGT201D3 exhibited α-naphthol activity (2.81 ± 0.43 nmol/mg protein/min), and the enzyme activity could be inhibited by abamectin (inhibitory concentration at 50%: 57.50 ± 3.54 μmol/L). High-performance liquid chromatography analysis demonstrated that the recombinant UGT201D3 could effectively deplete abamectin (15.77% ± 3.72%) incubating with 150 μg protein for 6 h. These results provided direct evidence that UGT201D3 was involved in abamectin resistance in T. cinnabarinus.
Collapse
Affiliation(s)
- Meng‐Yao Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant ProtectionSouthwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Xin‐Yang Liu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant ProtectionSouthwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Li Shi
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant ProtectionSouthwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Jia‐Lu Liu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant ProtectionSouthwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Guang‐Mao Shen
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant ProtectionSouthwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Ping Zhang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant ProtectionSouthwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Wen‐Cai Lu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant ProtectionSouthwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Lin He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant ProtectionSouthwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| |
Collapse
|
29
|
Jiang Y, Shen Y, Zhu Q. A Lightweight Key Agreement Protocol Based on Chinese Remainder Theorem and ECDH for Smart Homes. Sensors (Basel) 2020; 20:E1357. [PMID: 32121637 PMCID: PMC7085596 DOI: 10.3390/s20051357] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 02/25/2020] [Accepted: 02/27/2020] [Indexed: 11/16/2022]
Abstract
Security and efficiency are the two main challenges for designing a smart home system. In this paper, by incorporating Chinese remainder theorem (CRT) into the elliptic curve Diffie-Hellman (ECDH), a lightweight key agreement protocol for smart home systems is constructed. Firstly, one-way hash authentication is used to identify the sensor nodes instead of mutual authentication to reduce the authentication cost. Secondly, the CRT is introduced to enhance the security of the original ECDH key agreement. Security analysis showed that the proposed protocol can validate the data integrity and resist the replay attack, the man-in-middle attack, and other attacks. Performance analysis and experiments showed that the protocol achieves high security with low communication and computation costs, and can be implemented in smart home systems.
Collapse
Affiliation(s)
- Yi Jiang
- School of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China; (Y.J.); (Y.S.)
| | - Yong Shen
- School of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China; (Y.J.); (Y.S.)
| | - Qingyi Zhu
- School of Cyber Security and Information Law, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
| |
Collapse
|
30
|
Yang T, Tian L, Zhou E, Chen D, Lei Y. Design of Double-Shelled CuS Nanocages to Optimize Electrocatalytic Dynamic for Sensitive Detection of Ascorbic Acid. Nanoscale Res Lett 2020; 15:44. [PMID: 32072307 PMCID: PMC7028898 DOI: 10.1186/s11671-020-3278-2] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 02/04/2020] [Indexed: 06/10/2023]
Abstract
Although transition metal sulfides have presented prospect in electrochemical sensing, their electrocatalytic performance still cannot meet the demands for practical applications due to the difficulties in mass transport and electron transfer. In this work, double-shelled CuS nanocages (2-CuS NCs) were prepared for enzyme-free ascorbic (AA) sensor through a Cu2O- templated method. The unique double-shelled hollow structure displayed large specific surface areas, ordered diffusion channels, increased volume occupying rate, and accelerated electron transfer rate, resulting in enhanced electrochemical dynamic. As a sensing electrode for AA, 2-CuS NCs modified glassy carbon electrode (2-CuS NCs/GCE) exhibited eminent electrocatalytic activity in terms of satisfying sensitivity (523.7 μA mM-1 cm-2), short response time (0.31 s), and low limit of detection (LOD, 0.15 μM). 2-CuS NCs look promising for analytical sensing of AA in electrochemical sensors thanks to its prominent electrocatalytic kinetics issued from double-shelled hollow porous structure.
Collapse
Affiliation(s)
- Tong Yang
- School of Materials and Energy, Southwest University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Materials Surface and Interface Science, Chongqing, People’s Republic of China
- Chongqing Municipal Key Laboratory of Micro/Nano Materials Engineering and Technology, Chongqing, People’s Republic of China
| | - Liangliang Tian
- Chongqing Key Laboratory of Materials Surface and Interface Science, Chongqing, People’s Republic of China
- Chongqing Municipal Key Laboratory of Micro/Nano Materials Engineering and Technology, Chongqing, People’s Republic of China
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, People’s Republic of China
| | - Enmin Zhou
- School of Science, Chongqing University of Posts and Telecommunication, Chongqing, People’s Republic of China
| | - Daidong Chen
- School of Materials and Energy, Southwest University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Materials Surface and Interface Science, Chongqing, People’s Republic of China
- Chongqing Municipal Key Laboratory of Micro/Nano Materials Engineering and Technology, Chongqing, People’s Republic of China
| | - Yu Lei
- Chongqing Key Laboratory of Materials Surface and Interface Science, Chongqing, People’s Republic of China
- Chongqing Municipal Key Laboratory of Micro/Nano Materials Engineering and Technology, Chongqing, People’s Republic of China
- Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing, People’s Republic of China
| |
Collapse
|
31
|
Yang PJ, Chen EH, Song ZH, He W, Liu SH, Dou W, Wang JJ. Molecular Characterization and Expression Profiling of Nuclear Receptor Gene Families in Oriental Fruit Fly, Bactrocera Dorsalis (Hendel). Insects 2020; 11:E126. [PMID: 32079114 PMCID: PMC7074177 DOI: 10.3390/insects11020126] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/07/2020] [Accepted: 02/14/2020] [Indexed: 12/11/2022]
Abstract
The oriental fruit fly (Bactrocera dorsalis) is a pest that causes large economic losses in the fruit and vegetable industry, so its control is a major challenge. Nuclear receptors (NRs) are a superfamily of ligand-dependent transcription factors that directly combine with DNA to regulate the expression of downstream target genes. NRs are closely associated with multiple physiological processes such as metabolism, reproduction, and development. Through sequence searches and analysis, we identified 21 B. dorsalis NR genes, all of which contained at least one of the two characteristic binding domains. On the basis of the conserved sequences and phylogenetic relationships, we divided the 21 NR genes into seven subfamilies. All members of the NR0 subfamily and BdHR83, which belonged to the NR2E group, lacked ligand-binding domains. The BdDSF and BdHR51, which also belonged to the NR2Egroup, and BdE78 (which belonged to the NR1E group) all lacked DNA-binding domains. The BdDSF and BdHR83 sequences were incomplete, and were not successfully amplified. Development- and tissue-specific expression profiling demonstrated that the transcript levels of the 19 NR genes varied considerably among eggs, larva, pupae, and adults, as well as among larval and adult male and female tissues. Our results will contribute to a better understanding of NR evolution and expand our knowledge of B. dorsalis physiology.
Collapse
Affiliation(s)
- Pei-Jin Yang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Er-Hu Chen
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Zhong-Hao Song
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Wang He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Shi-Huo Liu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Wei Dou
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| | - Jin-Jun Wang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400715, China
- Academy of Agricultural Sciences, Southwest University, Chongqing 400715, China
| |
Collapse
|
32
|
Tan T, Liu R, Luo Q, Ma J, Ou Y, Zeng W, Feng L, Xu H. The intronic promoter of Actin4 mediates high-level transgene expression mainly in the wing and epidermis of silkworms. Transgenic Res 2020; 29:243-251. [PMID: 31960249 DOI: 10.1007/s11248-020-00192-0] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 01/16/2020] [Indexed: 11/24/2022]
Abstract
The cytoplasmic actin gene Actin4 (A4) in silkworm (Bombyx mori) was isolated 20 years ago and has a distal promoter upstream of the first exon and a proximal promoter within the first intron; however, how the promoter regulates gene expression has yet to be fully elucidated. Here, we characterized the function and expression of the proximal promoter (named A4IP) by analyzing transgenic Gal4/UAS silkworms, A4IP-Gal4/UAS-EGFP. We demonstrated that A4IP drives the expression of Gal4 and thereby activates UAS-linked EGFP in transgenic silkworms beginning in day-3 embryos through adults. Further detection revealed that EGFP was expressed at a low level in tissues including the trachea, fat body and midgut but was highly expressed in the wing disks/wings and inner epidermis of transgenic silkworms. No EGFP signals were detected in other tissues by western blot assay. Interestingly, EGFP fluorescence had a spot-like distribution on the epidermis of transgenic larvae. These observations are quite different from those in transgenic silkworms driven by the promoter of Actin3 (A3), another cytoplasmic actin gene in B. mori. These findings reveal the expression profiles of the A4IP promoter and provide new insights into the regulatory mechanism of cytoplasmic actin genes in silkworms.
Collapse
Affiliation(s)
- Tingting Tan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- College of Biotechnology, Southwest University, Chongqing, China
| | - Rongpeng Liu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Qin Luo
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Jingwen Ma
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- College of Biotechnology, Southwest University, Chongqing, China
| | - Yao Ou
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Wenhui Zeng
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Lichun Feng
- College of Biotechnology, Southwest University, Chongqing, China
| | - Hanfu Xu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China.
- College of Biotechnology, Southwest University, Chongqing, China.
| |
Collapse
|
33
|
Abstract
With the growing popularity of online services such as online banking and online shopping, one of the essential research topics is how to build a privacy-preserving user abnormal behavior recommendation system. However, a machine-learning based system may present a dilemma. On one aspect, such system requires large volume of features to pre-train the model, but on another aspect, it is challenging to design usable features without looking to plaintext private data. In this paper, we propose an unorthodox approach involving graph analysis to resolve this dilemma and build a novel private-preserving recommendation system under a multilayer network framework. In experiments, we use a large, state-of-the-art dataset (containing more than 40,000 nodes and 43 million encrypted features) to evaluate the recommendation ability of our system on abnormal user behavior, yielding an overall precision rate of around 0.9, a recall rate of 1.0, and an F1-score of around 0.94. Also, we have also reported a linear time complexity for our system. Last, we deploy our system on the "Wenjuanxing" crowd-sourced system and "Amazon Mechanical Turk" for other users to evaluate in all aspects. The result shows that almost all feedbacks have achieved up to 85% satisfaction.
Collapse
Affiliation(s)
- Chengyun Song
- School of Computer Science and Engineering, Chongqing University of Technology, Chongqing, China
| | - Weiyi Liu
- JD Urban Computing Business Unit, Chengdu, China
| | - Zhining Liu
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiaoyang Liu
- School of Computer Science and Engineering, Chongqing University of Technology, Chongqing, China
| |
Collapse
|
34
|
Feng X, Dai H, Ma L, Yu Y, Tang M, Li Y, Hu W, Liu T, Zhang Y. Food-Grade Gelatin Nanoparticles: Preparation, Characterization, and Preliminary Application for Stabilizing Pickering Emulsions. Foods 2019; 8:E479. [PMID: 31614580 PMCID: PMC6835924 DOI: 10.3390/foods8100479] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 10/03/2019] [Accepted: 10/09/2019] [Indexed: 01/05/2023] Open
Abstract
In this paper, the food-grade gelatin nanoparticles (GNPs) were prepared by a two-step desolvation method and using genipin as a cross-linker. The GNPs with narrow size distribution and good dispersion could be obtained only at pH 12. The effect of the genipin dosage (8-12 wt%) on the GNPs was systematically investigated. The results showed that the cross-linking degree of the GNPs increased with the increasing dosage of genipin, thus leading to a more obvious cross-linking morphology observed from scanning electron microscope (SEM). The obtained GNPs showed a good dispersibility with a size range of 386-438 nm. However, the GNPs cross-linked by 8 wt% genipin dosage revealed a relatively higher size because of the aggregation induced by hydrogen bond. The 10 wt% group had good thermal stability and storage stability. The optical microscopy results showed that the Pickering emulsions (30-50 vol% internal phase) stabilized by the GNPs had good uniformity and stability, even after 30 days of storage time, suggesting that the stable GNPs had great potential in food-grade Pickering emulsions.
Collapse
Affiliation(s)
- Xin Feng
- College of Food Science, Southwest University, Chongqing 400715, China.
| | - Hongjie Dai
- College of Food Science, Southwest University, Chongqing 400715, China.
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Chongqing 400715, China.
| | - Liang Ma
- College of Food Science, Southwest University, Chongqing 400715, China.
- Biological Science Research Center, Southwest University, Chongqing 400715, China.
| | - Yong Yu
- College of Food Science, Southwest University, Chongqing 400715, China.
| | - Mi Tang
- College of Food Science, Southwest University, Chongqing 400715, China.
| | - Yuan Li
- College of Food Science, Southwest University, Chongqing 400715, China.
| | - Weijie Hu
- College of Food Science, Southwest University, Chongqing 400715, China.
| | - Tingwei Liu
- College of Food Science, Southwest University, Chongqing 400715, China.
| | - Yuhao Zhang
- College of Food Science, Southwest University, Chongqing 400715, China.
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Chongqing 400715, China.
- Biological Science Research Center, Southwest University, Chongqing 400715, China.
| |
Collapse
|
35
|
Di L, Yang H, Xian T, Liu X, Chen X. Photocatalytic and Photo-Fenton Catalytic Degradation Activities of Z-Scheme Ag₂S/BiFeO₃ Heterojunction Composites under Visible-Light Irradiation. Nanomaterials (Basel) 2019; 9:E399. [PMID: 30857308 PMCID: PMC6473958 DOI: 10.3390/nano9030399] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/28/2019] [Accepted: 03/05/2019] [Indexed: 01/07/2023]
Abstract
Z-scheme Ag₂S/BiFeO₃ heterojunction composites were successfully prepared through a precipitation method. The morphology and microstructure characterization demonstrate that Ag₂S nanoparticles (30⁻50 nm) are well-decorated on the surfaces of polyhedral BiFeO₃ particles (500⁻800 nm) to form Ag₂S/BiFeO₃ heterojunctions. The photocatalytic and photo-Fenton catalytic activities of the as-derived Ag₂S/BiFeO₃ heterojunction composites were evaluated by the degradation of methyl orange (MO) under visible-light irradiation. The photocatalytic result indicates that the Ag₂S/BiFeO₃ composites exhibit much improved photocatalytic activities when compared with bare Ag₂S and BiFeO₃. The optimum composite sample was observed to be 15% Ag₂S/BiFeO₃ with an Ag₂S mass fraction of 15%. Furthermore, the addition of H₂O₂ can further enhance the dye degradation efficiency, which is due to the synergistic effects of photo- and Fenton catalysis. The results of photoelectrochemical and photoluminescence measurements suggest a greater separation of the photoexcited electron/hole pairs in the Ag₂S/BiFeO₃ composites. According to the active species trapping experiments, the photocatalytic and photo-Fenton catalytic mechanisms of the Ag₂S/BiFeO₃ composites were proposed and discussed.
Collapse
Affiliation(s)
- Lijing Di
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China.
- College of Physics and Electronic Information Engineering, Qinghai Normal University, Xining 810008, China.
| | - Hua Yang
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China.
| | - Tao Xian
- College of Physics and Electronic Information Engineering, Qinghai Normal University, Xining 810008, China.
| | - Xueqin Liu
- School of Science, Chongqing University of Technology, Chongqing 4000054, China.
| | - Xiujuan Chen
- State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China.
| |
Collapse
|
36
|
He P, Wang X, Zhang X, Jiang Y, Tian W, Zhang X, Li Y, Sun Y, Xie J, Ni J, He G, Sang X. Short and narrow flag leaf1, a GATA zinc finger domain-containing protein, regulates flag leaf size in rice (Oryza sativa). BMC Plant Biol 2018; 18:273. [PMID: 30413183 PMCID: PMC6230254 DOI: 10.1186/s12870-018-1452-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Accepted: 09/27/2018] [Indexed: 05/13/2023]
Abstract
BACKGROUND The flag leaf of rice (Oryza sativa L.) is an important determinant of plant type characteristics and grain yield. Identification of flag leaf mutants of rice is crucial to elucidate the molecular mechanism of flag-leaf development, and for exploitation of rice germplasm resources. RESULTS In this study, we describe a mutant designated short and narrow flag leaf 1 (snfl1). Histological analysis showed that the length of epidermal cells and number of longitudinal veins were decreased in the flag leaf of the snfl1 mutant. Map-based cloning indicated that a member of the GATA family of transcription factors is a candidate gene for SNFL1. A single-nucleotide transition at the last base in the single intron of snfl1 led to variation in alternative splicing and early termination of translation. Complemented transgenic plants harbouring the candidate SNFL1 gene rescued the snfl1 mutant. Analysis of RT-PCR and the SNFL1 promoter by means of a GUS fusion expression assay showed that abundance of SNFL1 transcripts was higher in the culm, leaf sheath, and root. Expression of the SNFL1-GFP fusion protein in rice protoplasts showed that SNFL1 was localized in nucleus. CONCLUSIONS We conclude that SNFL1 is an important regulator of leaf development, the identification of which might have important implications for future research on GATA transcription factors.
Collapse
Affiliation(s)
- Peilong He
- Key Laboratory of Application and Safety Control of Genetically Modified Crops, Rice Research Institute of Southwest University, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Xiaowen Wang
- Key Laboratory of Application and Safety Control of Genetically Modified Crops, Rice Research Institute of Southwest University, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Xiaobo Zhang
- Key Laboratory of Application and Safety Control of Genetically Modified Crops, Rice Research Institute of Southwest University, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Yudong Jiang
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Institute of Rice and Sorghum, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Weijiang Tian
- Key Laboratory of Application and Safety Control of Genetically Modified Crops, Rice Research Institute of Southwest University, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Xiaoqiong Zhang
- Key Laboratory of Application and Safety Control of Genetically Modified Crops, Rice Research Institute of Southwest University, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Yangyang Li
- Key Laboratory of Application and Safety Control of Genetically Modified Crops, Rice Research Institute of Southwest University, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Ying Sun
- Key Laboratory of Application and Safety Control of Genetically Modified Crops, Rice Research Institute of Southwest University, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Jia Xie
- Key Laboratory of Application and Safety Control of Genetically Modified Crops, Rice Research Institute of Southwest University, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Jile Ni
- Key Laboratory of Application and Safety Control of Genetically Modified Crops, Rice Research Institute of Southwest University, Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Guanghua He
- Key Laboratory of Application and Safety Control of Genetically Modified Crops, Rice Research Institute of Southwest University, Academy of Agricultural Sciences, Southwest University, Chongqing, China.
| | - Xianchun Sang
- Key Laboratory of Application and Safety Control of Genetically Modified Crops, Rice Research Institute of Southwest University, Academy of Agricultural Sciences, Southwest University, Chongqing, China.
| |
Collapse
|
37
|
Li L, Lu Z, Zhang W, Huang F, Yang Y. A posteriori error estimates of spectral method for nonlinear parabolic optimal control problem. J Inequal Appl 2018; 2018:138. [PMID: 30137735 PMCID: PMC6008391 DOI: 10.1186/s13660-018-1729-4] [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] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 06/10/2018] [Indexed: 06/08/2023]
Abstract
In this paper, we investigate the spectral approximation of optimal control problem governed by nonlinear parabolic equations. A spectral approximation scheme for the nonlinear parabolic optimal control problem is presented. We construct a fully discrete spectral approximation scheme by using the backward Euler scheme in time. Moreover, by using an orthogonal projection operator, we obtain L2(H1)-L2(L2) a posteriori error estimates of the approximation solutions for both the state and the control. Finally, by introducing two auxiliary equations, we also obtain L2(L2)-L2(L2) a posteriori error estimates of the approximation solutions for both the state and the control.
Collapse
Affiliation(s)
- Lin Li
- Key Laboratory for Nonlinear Science and System Structure, Chongqing Three Gorges University, Chongqing, P.R. China
| | - Zuliang Lu
- Key Laboratory for Nonlinear Science and System Structure, Chongqing Three Gorges University, Chongqing, P.R. China
- Key Laboratory of Intelligent Information Processing and Control, Chongqing Three Gorges University, Chongqing, P.R. China
- Research Center for Mathematics and Economics, Tianjin University of Finance and Economics, Tianjin, P.R. China
| | - Wei Zhang
- Key Laboratory of Intelligent Information Processing and Control of Chongqing Municipal Institutions of Higher Education, Chongqing Three Gorges University, Chongqing, P.R. China
| | - Fei Huang
- Key Laboratory for Nonlinear Science and System Structure, Chongqing Three Gorges University, Chongqing, P.R. China
| | - Yin Yang
- Hunan Key Laboratory for Computation and Simulation in Science and Engineering, Xiangtan University, Xiangtan, P.R. China
- Key Laboratory of Intelligent Computing and Information Processing of Ministry of Education, Xiangtan University, Xiangtan, P.R. China
| |
Collapse
|
38
|
Wang Y, Atta S, Wang X, Yang F, Zhou C, Cao M. Transcriptome sequencing reveals novel Citrus bark cracking viroid (CBCVd) variants from citrus and their molecular characterization. PLoS One 2018; 13:e0198022. [PMID: 29889858 PMCID: PMC5995356 DOI: 10.1371/journal.pone.0198022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 05/11/2018] [Indexed: 11/18/2022] Open
Abstract
Citrus bark cracking viroid (CBCVd), previously called Citrus viroid IV, belongs to the genus Cocadviroid within the family Pospiviroidae. CBCVd has been identified as an important causative agent in citrus and hops. In this study, we obtained the full-length genomes of different variants of all detected citrus viroids from Pakistan through transcriptome sequencing. Different CBCVd variants were first found in Pakistan. These newly discovered Pakistani CBCVd variants were provisionally called "CBCVd-LSS" for their low sequence similarity (80.9%-88.9%) with the CBCVd RefSeq sequence (NC_003539). The two most predominant CBCVd sequences from Pakistan had the closest identity, 90.6% and 87.9%, with two CBCVd sequences isolated from hops. Identification and molecular characterization of CBCVd from citrus in Pakistan and China were also reported. The length of CBCVd from China ranged from 282 to 286 nucleotides, while that of the one from Pakistan ranged from 273 to 277 nucleotides. Based on genetic diversity and phylogenetic analysis, two main CBCVd clades were identified. CBCVd sequences from Pakistan, China, and other countries were further divided into six sub-clades. Sequence alignment revealed some nucleotide changes between these sub-clades, and analysis indicated that several mutations could significantly affect the primary and secondary structure of the viroid. Our results indicated that the CBCVd sequences from Pakistan and China were significantly different with respect to genome and secondary structure and Pakistan might be one of the independent geographical origins of CBCVd worldwide.
Collapse
Affiliation(s)
- Yafei Wang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Sagheer Atta
- Department of Plant Protection, Faculty of Agricultural Sciences, Ghazi University, Dera Ghazi Khan, Pakistan
| | - Xuefeng Wang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Fangyun Yang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, China
| | - Changyong Zhou
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
| | - Mengji Cao
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
| |
Collapse
|
39
|
Zeng W, Wang R, Zhang T, Gong C, Zuo W, Liu R, Ou Y, Xu H. Cloning and expression analysis of BmYki gene in silkworm, Bombyx mori. PLoS One 2017; 12:e0182690. [PMID: 28793345 PMCID: PMC5549978 DOI: 10.1371/journal.pone.0182690] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 07/21/2017] [Indexed: 11/18/2022] Open
Abstract
The transcriptional coactivator Yorkie(Yki), is a critical downstream effector of the Hippo(Hpo) signaling pathway that controls organ size through the regulation of cell proliferation and apoptosis. During the past ten years the biological function of Yki has been studied extensively in Drosophila and a few other insects, however, little is known about it in the silkworm, Bombyx mori, a major research model of lepidopteran insect. Here, we describe the isolation, characterization and expression of the B. mori Yki ortholog, BmYki. The coding sequence of the BmYki was 1314 bp in length, encoding a protein of 437 amino acids containing two conserved WW domains. BmYki transcripts were ubiquitous but not abundant in all detected tissues and developmental stages. Comparatively, it was expressed at pretty high level in silk glands and at the stage of fifth-instar day-3 larvae. Overexpression of BmYki in cultured B. mori embryonic cells significantly promoted transcription of genes associated with cell proliferation and apoptosis, indicating that BmYki functions in the regulation of organ growth-related biological processes. Interestingly, transcription of silk protein-coding genes and transcription factors regulating the synthesis of silk proteins was downregulated remarkably, suggesting that BmYki was involved in the regulation of silk protein synthesis. This study provides new insights into the role of BmYki in Hpo pathway regulation in silkworm.
Collapse
Affiliation(s)
- Wenhui Zeng
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Riyuan Wang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Tianyang Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Chunying Gong
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Weidong Zuo
- College of Biotechnology, Southwest University, Chongqing, China
| | - Rongpeng Liu
- College of Biotechnology, Southwest University, Chongqing, China
| | - Yao Ou
- College of Biotechnology, Southwest University, Chongqing, China
| | - Hanfu Xu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- College of Biotechnology, Southwest University, Chongqing, China
- Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China
- * E-mail:
| |
Collapse
|
40
|
Huang J, Zhao L, Yang P, Chen Z, Tang N, Z. Ruan X, Chen Y. Genome-Wide Transcriptome Analysis of CD36 Overexpression in HepG2.2.15 Cells to Explore Its Regulatory Role in Metabolism and the Hepatitis B Virus Life Cycle. PLoS One 2016; 11:e0164787. [PMID: 27749922 PMCID: PMC5066966 DOI: 10.1371/journal.pone.0164787] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 10/02/2016] [Indexed: 01/05/2023] Open
Abstract
Hepatitis B virus (HBV) is a hepatocyte-specific DNA virus whose gene expression and replication are closely associated with hepatic metabolic processes. Thus, a potential anti-viral strategy is to target the host metabolic factors necessary for HBV gene expression and replication. Recent studies revealed that fatty acid translocase CD36 is involved in the replication, assembly, storage, and secretion of certain viruses, such as hepatitis C virus (HCV) and human immunodeficiency virus (HIV). However, the relationship between CD36 and the HBV life cycle remains unclear. Here, we showed, for the first time, that increased CD36 expression enhances HBV replication in HepG2.2.15 cells. To understand the underlying molecular basis, we performed genome-wide sequencing of the mRNA from HepG2.2.15-CD36 overexpression (CD36OE) cells and HepG2.2.15-vector cells using RNA Sequencing (RNA-seq) technology to analyze the differential transcriptomic profile. Our results identified 141 differentially expressed genes (DEGs) related to CD36 overexpression, including 79 upregulated genes and 62 downregulated genes. Gene ontology and KEGG pathway analysis revealed that some of the DEGs were involved in various metabolic processes and the HBV life cycle. The reliability of the RNA-Seq data was confirmed by qPCR analysis. Our findings provide clues to build a link between CD36, host metabolism and the HBV life cycle and identified areas that require further investigation.
Collapse
Affiliation(s)
- Jian Huang
- Centre for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Lei Zhao
- Centre for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Ping Yang
- Centre for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Zhen Chen
- Centre for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Ni Tang
- Centre for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xiong Z. Ruan
- Centre for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- John Moorhead Research Laboratory, Centre for Nephrology, University College London Medical School, Royal Free Campus, University College London, London, United Kingdom
| | - Yaxi Chen
- Centre for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- * E-mail:
| |
Collapse
|
41
|
Wu W, Zhao L, Yang P, Zhou W, Li B, Moorhead JF, Varghese Z, Ruan XZ, Chen Y. Inflammatory Stress Sensitizes the Liver to Atorvastatin-Induced Injury in ApoE-/- Mice. PLoS One 2016; 11:e0159512. [PMID: 27428373 PMCID: PMC4948878 DOI: 10.1371/journal.pone.0159512] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 07/05/2016] [Indexed: 01/12/2023] Open
Abstract
Statins, which are revolutionized cholesterol-lowing agents, have been reported to have unfavorable effects on the liver. Inflammatory stress is a susceptibility factor for drug-induced liver injury. This study investigated whether inflammatory stress sensitized the liver to statin-induced toxicity in mice and explored the underlying mechanisms. We used casein injection in ApoE-/- mice to induce inflammatory stress. Half of the mice were orally administered atorvastatin (10mg/kg/d) for 8 weeks. The results showed that casein injection increased the levels of serum pro-inflammatory cytokines (IL-6 and TNFα). Atorvastatin treatment increased serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in casein injection mice. Moreover, atorvastatin treatment exacerbated hepatic steatosis, inflammation and fibrosis, as well as increased hepatic reactive oxygen species (ROS) and malondialdehyde in casein injection mice. However, above changes were not observed in atorvastatin treated alone mice. The protein expression of liver nuclear factor erythroid 2-related factor 2 (Nrf2) and the mRNA expressions of Nrf2 target genes were increased, together with the enhancement of activities of hepatic catalase and superoxide dismutase in atorvastatin treated alone mice, but these antioxidant responses were lost in mice treated with atorvastatin under inflammatory stress. This study demonstrates that atorvastatin exacerbates the liver injury under inflammatory stress, which may be associated with the loss of adaptive antioxidant response mediated by Nrf2.
Collapse
Affiliation(s)
- Wei Wu
- Center for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Lei Zhao
- Center for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Ping Yang
- Center for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Wei Zhou
- Center for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Beibei Li
- Center for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - John F. Moorhead
- John Moorhead Research Laboratory, Center for Nephrology, University College London Medical School, Royal Free Campus, University College London, London, United Kingdom
| | - Zac Varghese
- John Moorhead Research Laboratory, Center for Nephrology, University College London Medical School, Royal Free Campus, University College London, London, United Kingdom
| | - Xiong Z. Ruan
- Center for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- The Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases (CCID), Zhejiang University, Hangzhou, China
- John Moorhead Research Laboratory, Center for Nephrology, University College London Medical School, Royal Free Campus, University College London, London, United Kingdom
- * E-mail: (YC); (XZR)
| | - Yaxi Chen
- Center for Lipid Research & Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- * E-mail: (YC); (XZR)
| |
Collapse
|