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Chen C, Shen JL, Wang T, Yang B, Liang CS, Jiang HF, Wang GX. Ophiopogon japonicus inhibits white spot syndrome virus proliferation in vivo and enhances immune response in Chinese mitten crab Eriocheir sinensis. FISH & SHELLFISH IMMUNOLOGY 2021; 119:432-441. [PMID: 34688864 DOI: 10.1016/j.fsi.2021.10.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/18/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
White spot syndrome virus (WSSV) is a fatal pathogen threatening global crustacean industry with no commercially available drugs to control. Herbal medicines have been widely used to treat a number of viral infections, which could offer a rich reserve for antiviral drug discovery. Here, we evaluated the inhibition activities of 30 herbal medicines against WSSV in Chinese mitten crab Eriocheir sinensis. A WSSV infection model in E. sinensis was firstly established in order to determine the antiviral effects of the plant extracts and to explore the potential action mechanisms. Results showed that the highest anti-WSSV activity was obtained by the treatment of Ophiopogon japonicus extract (93.03%, 100 mg/kg). O. japonicus treatment decreased viral loads in a dose-dependent manner and significantly improved the survival of WSSV-challenged crabs. O. japonicus reduced the expression of vital genes in viral life cycle in vivo, particularly for the immediate-early stage gene ie1. Further results indicated that O. japonicus could repress the JAK-STAT signaling pathway to block ie1 transcription. Moreover, O. japonicus could modulate certain immune genes such as the myosin, toll-like receptor, crustin, and prophenoloxidase in the interactions between WSSV and crabs. The up-regulated expression of pro-autophagic factors (Gabarap and Atg7) and elevated levels of antioxidant enzymes (SOD, CAT and GSH) suggested that O. japonicus may induce autophagy and attenuate WSSV-induced oxidative stress. Taken together, O. japonicus could inhibit WSSV proliferation and improve the survival of WSSV-challenged crabs. Thus, O. japonicus may have the potential to be developed as a preventive or therapeutic agent against WSSV, and its effective compounds merit further isolation and identification.
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Affiliation(s)
- Cheng Chen
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China
| | - Jing-Lei Shen
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China
| | - Tao Wang
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China
| | - Bin Yang
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China
| | - Chang-Shuai Liang
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China
| | - Hai-Feng Jiang
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China.
| | - Gao-Xue Wang
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi, 712100, China.
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Xu L, Zhang H, Wei J. Fabrication of multicolored patterns based on dye-doped cholesteric liquid crystals. Photochem Photobiol Sci 2019; 18:1638-1648. [PMID: 31090779 DOI: 10.1039/c9pp00150f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We developed a type of dye-doped cholesteric liquid crystal, which were used for fluorescence enhancement and dual-mode multicolor patterns. We added dye molecules (BBOT, coumarin 6 (C6) and rhodamine B (RhB)) to liquid crystals, and cholesteric liquid crystals (CLC) exhibited selective reflection characteristics. When the reflection wavelength overlaps with the peak of the fluorescent dye, the luminescence intensity of the dye molecules could be adjusted. We used two methods to adjust the reflection wavelength of the cholesteric liquid crystals by changing the content of chiral additives and the isomerization degree of azo molecules. We used the screen printing and stencil printing methods to combine liquid crystal particles containing different fluorescent colors to prepare multicolor patterns. Moreover, the photoisomerization characteristics of the azo molecules were also used to achieve brilliant firework-like images upon exposure to ultraviolet and visible light. In addition, we also realized a face-changing stunt with facial makeup during a performance in the Sichuan Opera, a traditional Chinese folk art. We made use of the difference between reflection color and luminescence intensity upon light irradiation to present orange, green, blue and dark-blue facial effects.
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Affiliation(s)
- Linlin Xu
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
| | - Hanbing Zhang
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
| | - Jie Wei
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China. and Beijing Engineering Research Center for the Synthesis and Applications of Waterborne Polymers, Beijing 100029, P. R. China
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Ramírez-Meza SM, Maldonado-González M, Hernández-Nazara ZH, Martínez-López E, Ocampo-González S, Bobadilla-Morales L, Torres-Baranda JR, Ruíz-Madrigal B. Development of an effective and rapid qPCR for identifying human ChREBPα/β isoforms in hepatic and adipose tissues. Scandinavian Journal of Clinical and Laboratory Investigation 2019; 79:218-224. [PMID: 30813849 DOI: 10.1080/00365513.2019.1581944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Most quantitative real-time PCR (qPCR) detection methods use two types of chemistries to measure the expression levels of ChREBP isoforms, hydrolysis probes for ChREBPα and SYBR Green for ChREBPβ. Hydrolysis probes are not available to determine the ChREBPβ isoform. The aim of this study was to develop a qPCR assay based only on hydrolysis probes for both ChREBP isoforms. Liver and adipose tissue biopsies from patients undergoing elective cholecystectomy surgery were used to perform qPCR. To validate this assay, the results were compared with sequencing and High Resolution Melting (HRM) PCR assays. Direct sequencing was used to determine the sequence showing site where ChREBPβ presents its specific splicing (1 b exon/2 exon) in order to design the primers and the probe. We developed a qPCR assay to determine the ChREBP isoforms expression based on hydrolysis probes. It assays showed good efficiency (95.50%, on average), high reproducibility, and a strong linear correlation (R2 ≥ 0.99) for tissues tested. HRM analysis confirmed the specificity of the primers and the result of this assay matched (100%) with the outcomes obtained by sequencing and qPCR. Also, we obtained the ChREBPβ sequence showing exon 1b spliced to exon 2, bypassing exon 1a, and retaining the remainder of the ChREBPα exons. Based on the use of hydrolysis probes, our method can efficiently identify the expression of both ChREBP isoforms. Thus, the comparability of the qPCR results using a single chemistry (hydrolysis probes) to discriminate between both ChREBP isoforms was possible.
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Affiliation(s)
- Sandra M Ramírez-Meza
- a Programa de Doctorado en Ciencias en Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico
| | - Montserrat Maldonado-González
- a Programa de Doctorado en Ciencias en Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico.,b Laboratorio de Investigación en Microbiología, Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud , Universidad de Guadalajara , Guadalajara , Mexico
| | - Zamira H Hernández-Nazara
- a Programa de Doctorado en Ciencias en Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico.,c Instituto en Investigación en Enfermedades Crónico Degenerativas, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico
| | - Erika Martínez-López
- a Programa de Doctorado en Ciencias en Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico
| | - Saúl Ocampo-González
- d Clínica de Cirugía de Obesidad y Enfermedades Metabólicas , OPD Hospital Civil de Guadalajara "Fray Antonio Alcalde" , Guadalajara , Mexico
| | - Lucina Bobadilla-Morales
- e Unidad de Citogenética, División de Pediatría , Hospital Civil de Guadalajara "Dr. Juan I. Menchaca", Instituto de Genética Humana "Dr. Enrique Corona Rivera" Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud Universidad de Guadalajara , Guadalajara , Mexico
| | - José R Torres-Baranda
- b Laboratorio de Investigación en Microbiología, Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud , Universidad de Guadalajara , Guadalajara , Mexico
| | - Bertha Ruíz-Madrigal
- a Programa de Doctorado en Ciencias en Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico.,b Laboratorio de Investigación en Microbiología, Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud , Universidad de Guadalajara , Guadalajara , Mexico
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Chen XJ, Sun K, Jiang WW. Absence of high-risk HPV 16 and 18 in Chinese patients with oral squamous cell carcinoma and oral potentially malignant disorders. Virol J 2016; 13:81. [PMID: 27206495 PMCID: PMC4875721 DOI: 10.1186/s12985-016-0526-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 04/11/2016] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND The critical role of human papillomavirus (HPV) in cancer has been recognized, but the involvement of HPV in oral squamous cell carcinoma (OSCC) and oral potentially malignant disorders (OPMD) is still controversial. The aim of this study was to identify and verify the prevalence of high-risk HPV infection (HPV16 and 18) in Chinese patients with OSCC or OPMD using real-time PCR and DNA sequencing. METHODS Paired tissue and serum DNA samples were extracted from 40 Chinese patients with OSCC and 59 with OPMD. A SYBR Green-based real-time PCR assay was developed to detect the E6 gene of HPV16 and HPV18. Suspicious positive samples were then sequenced to eliminate false positives. RESULTS We found that none of the tissue and serum samples of OSCCs and OPMDs were positive for HPV16 E6 or 18 E6, using both real-time PCR and DNA sequencing. Overall, 3 of 198 (1.52 %) and 7 of 198 (3.54 %) samples were false-positive for HPV16 E6 and HPV18 E6, respectively, using real-time PCR. CONCLUSION The lack of HPV16 and HPV18 detected in this study indicates that high-risk HPV 16 and 18 infections are uncommon in Chinese patients with OSCC and OPMD. Real-time PCR followed by DNA sequencing for HPV DNA detection is an effective strategy to rule out false positives.
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Affiliation(s)
- Xiao-Jie Chen
- Department of Oral Mucosal Diseases, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, New Out-patient Building, 500 Quxi Road, Shanghai, 200011 China
| | - Kai Sun
- Department of Oral Mucosal Diseases, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, New Out-patient Building, 500 Quxi Road, Shanghai, 200011 China
| | - Wei-Wen Jiang
- Department of Oral Mucosal Diseases, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, New Out-patient Building, 500 Quxi Road, Shanghai, 200011 China
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