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Sperti M, Malavolta M, Ciniero G, Borrelli S, Cavaglià M, Muscat S, Tuszynski JA, Afeltra A, Margiotta DPE, Navarini L. JAK inhibitors in immune-mediated rheumatic diseases: From a molecular perspective to clinical studies. J Mol Graph Model 2021; 104:107789. [DOI: 10.1016/j.jmgm.2020.107789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 09/21/2020] [Accepted: 10/20/2020] [Indexed: 12/11/2022]
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Hu L, Chen B, Liu K, Yu G, Chen Y, Dai J, Zhao X, Zhong G, Zhang Y, Shen J. OBP2 in the Midlegs of the Male Bactrocera dorsalis Is Involved in the Perception of the Female-Biased Sex Pheromone 4-Allyl-2,6-dimethoxyphenol. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:126-134. [PMID: 33393782 DOI: 10.1021/acs.jafc.0c05945] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Short-range semiochemicals convey individual-specific information, which is important for final successful courtship and copulation. In this study, an electroantennography (EAG) instrument was used to determine the legs of male Bactrocera dorsalis that might participate in the perception of 4-allyl-2,6-dimethoxyphenol (4-DMP), a female-biased cuticular hydrocarbon (CHC) component. By performing comparative RNA-seq analysis, nine differentially expressed OBPs between 4-DMP-stimulated (M4-DMP) and unstimulated (M) male flies were screened out. Among the four downregulated OBPs, BdorOBP2 exhibited the strongest binding to 4-DMP than BdorOBP4, BdorOBP19a, and BdorOBP56h. Functional analyses confirmed that the reduction in transcript abundance of BdorOBP2 led to a significant decrease in behavioral responses of male flies to 4-DMP. In silico simulation revealed dramatic changes in the key residues and conformation between the two complexes, implying that BdorOBP2 might activate different receptors after binding to 4-DMP or methyl eugenol (ME). The results of this study suggest that BdorOBP2 mediates behavioral responses to 4-DMP and could be a promising molecular target for strategies of pest control.
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Affiliation(s)
- Liming Hu
- Institute of Plant Health, ZhongKai University of Agriculture and Engineering, 510225 Guangzhou, Guangdong, China
| | - Binghan Chen
- Institute of Plant Health, ZhongKai University of Agriculture and Engineering, 510225 Guangzhou, Guangdong, China
| | - Kai Liu
- Institute of Plant Health, ZhongKai University of Agriculture and Engineering, 510225 Guangzhou, Guangdong, China
| | - Guohui Yu
- Institute of Plant Health, ZhongKai University of Agriculture and Engineering, 510225 Guangzhou, Guangdong, China
| | - Yirui Chen
- Institute of Plant Health, ZhongKai University of Agriculture and Engineering, 510225 Guangzhou, Guangdong, China
| | - Jianqing Dai
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangzhou, Guangdong China
| | - Xiaojuan Zhao
- College of Light industry and Food Science, ZhongKai University of Agriculture and Engineering, Guangzhou, Guangdong China
| | - Guohua Zhong
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Youjun Zhang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 100081 Beijing, China
| | - Jianmei Shen
- Institute of Plant Health, ZhongKai University of Agriculture and Engineering, 510225 Guangzhou, Guangdong, China
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Liu D, Zheng H, Li Y, Zhou P, Jin H, Luo R. Molecular cloning and functional characterization of duck Janus kinase 1. Mol Immunol 2019; 117:29-36. [PMID: 31733446 DOI: 10.1016/j.molimm.2019.10.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/06/2019] [Accepted: 10/29/2019] [Indexed: 11/30/2022]
Abstract
Janus kinase 1 (JAK1) is a member of JAK family of non-receptor protein tyrosine kinases that plays critical roles in transducing cytokine signals via JAK-signal transducer and activator of transcription (STAT) signaling pathway. The importance of JAK1 in innate immunity has been well-studied in mammals and fish, yet in avian remains largely unknown. Here, we cloned the full-length of the duck JAK1 (duJAK1) gene for the first time. DuJAK1 encoded a protein of 1152 amino acids and possessed high amino acid identity with goose and budgerigar JAK1s. The duJAK1 was expressed in all detected tissues, especially high in the thymus and bursa of Fabricius. Overexpression of duJAK1 significantly activated ISRE promoter activity and induced duck viperin, 2', 5'-OAS, MX, PKR and ZAP expression. Knockdown of duJAK1 by small interfering RNA significantly inhibited duck Tembusu virus (DTMUV)-, duck Enteritis virus (DEV)-, poly (I:C)-, poly (dA:dT)- or Sendai virus (SeV)-induced ISRE promoter activation. Furthermore, duJAK1 exhibited antiviral activity against DTMUV infection. These results will help us understand the function of JAK family proteins in duck antiviral immunity.
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Affiliation(s)
- Dejian Liu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Huijun Zheng
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Yaqian Li
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Peng Zhou
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Hui Jin
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China
| | - Rui Luo
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, the Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei 430070, China.
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Molecular cloning, expression and molecular modeling of chemosensory protein from Spodoptera litura and its binding properties with Rhodojaponin III. PLoS One 2012; 7:e47611. [PMID: 23133516 PMCID: PMC3485014 DOI: 10.1371/journal.pone.0047611] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 09/19/2012] [Indexed: 11/19/2022] Open
Abstract
Insects stimulate specific behaviors by the correct recognition of the chemicals in the external environment. Rhodojaponin III is a botanical grayanoid diterpenid oviposition deterrent isolated from Rhododendron molle. In this study we aimed to determine whether the CSPs involved in the recognition of Rhodojaponin III. A full-length cDNA encoding chemosensory protein was isolated from the antennae of Spodoptera litura Fabricius (CSPSlit, GenBank Accession No. DQ007458). The full-length cDNA of NlFoxA is 1789 bp and has an open reading frame (ORF) of 473 bp, encoding a protein of 126 amino acids, Northern blot analysis revealed that CSPSlit mRNA was mainly expressed in the antennae, legs, wings and female abdomens. A three-dimensional model of CSPSlit was constructed using homology modeling method, and its reliability was evaluated. The active site of CSPSlit was calculated using CDOCKER program indicated that the Tyr24, Ile45, Leu49, Thr64, Leu68, Trp79 and Leu82 were responsible ligand-binding active site on identifying Rhodojaponin III in the CSPSlit. The recombinant CSPSlit protein was expressed in Escherichia coli and purified using single-step Ni-NTA affinity chromatography. Fluorescence emission spectra revealed that the CSPSlit protein had significant affinity to rhodojaponin III. These results mean that CSPSlit is critical for insects identify the Rhodojaponin III.
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Fang W, Liu S, Nie Y. Anticancer activity of chamaejasmine: effect on tubulin protein. Molecules 2011; 16:6243-54. [PMID: 21788932 PMCID: PMC6264762 DOI: 10.3390/molecules16086243] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Revised: 07/15/2011] [Accepted: 07/18/2011] [Indexed: 11/16/2022] Open
Abstract
In this work, the anticancer activity of chamaejasmine was studied by evaluating its in vitro cytotoxicity against several human cancer cell lines (MCF-7, A549, SGC-7901, HCT-8, HO-4980, Hela, HepG2, PC-3, LNCap, Vero and MDCK) using the MTT assay. Results indicated chamaejasmine showed more notable anticancer activity than taxol against PC-3 cells, with IC50 values of 2.28 and 3.98 µM, respectively. Furthermore, Western blot analysis showed that chamaejasmine was able to increase the expression of β-tubulin, but not α-tubulin. In silico simulations indicated that chamaejasmine specifically interacts with the active site which is located at the top of β-tubulin, thanks to the presence of strong hydrophobic effects between the core templates and the hydrophobic surface of the TB active site. The binding energy (Einter) was calculated to be −164.77 kcal·mol−1. Results presented here suggest that chamaejasmine possesses anti-cancer properties relating to β-tubulin depolymerization inhibition, and therefore is a potential source of anticancer leads for the pharmaceutical industry.
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Affiliation(s)
- Wenlong Fang
- Department of Rheumatology, The Second Hospital Affiliated Harbin Medical University, Harbin 150086, China; (W.F.)
| | - Songtao Liu
- Hei longjiang Disabled Federation for Human Care Clinic, Harbin 150020, China; (S.L.)
| | - Yingkun Nie
- Department of Rheumatology, The Second Hospital Affiliated Harbin Medical University, Harbin 150086, China; (W.F.)
- Author to whom correspondence should be addressed; ; Tel.: +86-0451-89877490; Fax: +86-0451-86605060
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Alicea-Velázquez NL, Boggon TJ. The use of structural biology in Janus kinase targeted drug discovery. Curr Drug Targets 2011; 12:546-55. [PMID: 21126226 DOI: 10.2174/138945011794751528] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Accepted: 10/04/2010] [Indexed: 12/12/2022]
Abstract
The Janus kinases (or Jak kinases) mediate cytokine and growth factor signal transduction. Acquired or inherited Jak mutations can result in dysregulation of Jak-mediated signal transduction and can be critical to disease acquisition in neoplasias including acute myeloid, acute lymphoblastic and acute megakaryoblastic leukemias, and in rare X-linked severe combined immunodeficiency. The discovery of an acquired Jak2 point mutation, V617F, in significant numbers of patients with classical myeloproliferative disorders has increased the interest in development of Jak2-specific tyrosine kinase inhibitors and consequently there are now over 20 publically available structures of Jak kinase domains that describe all four family members, Jak1, Jak2, Jak3, and Tyk2. Here we review the recent advances in understanding the druggable structure and function of the Jak family, with a focus on the structural biology of the Jak kinase domain. We will discuss how these advances impact the development of Jak-targeted therapeutics.
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Affiliation(s)
- Nilda L Alicea-Velázquez
- Department of Pharmacology, Yale University School of Medicine, 333 Cedar St., SHM B-316A, New Haven, CT 06520, USA
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Yang Z, Nie Y, Yang G, Zu Y, Fu Y, Zhou L. Synergistic effects in the designs of neuraminidase ligands: Analysis from docking and molecular dynamics studies. J Theor Biol 2010; 267:363-74. [DOI: 10.1016/j.jtbi.2010.08.029] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2010] [Revised: 07/29/2010] [Accepted: 08/25/2010] [Indexed: 10/19/2022]
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Liu YH, Guo YR, Wang CM, Gui WJ, Zhu GN. Homology modeling of anti-parathion antibody and its interaction with organophosphorous pesticides and analogues. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2010; 45:819-827. [PMID: 20972920 DOI: 10.1080/03601234.2010.515501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The mechanism of specific recognition in pesticide immunochemistry was investigated by computer-based strategy, and a rapid method for the identification of antibody specificity was developed. Based on the previously produced anti-parathion monoclonal antibody (mAb), the DNA sequence was analyzed by polymerase chain reaction (PCR). From the translated amino acid sequences, a three-dimensional structure of the antibody was constructed by homology modeling method, and then it was coordinated by 1 ns molecular dynamics under the explicit solvent condition. The stereochemical property and folding quality were further assessed by Procheck and Profile-3D. The self-compatibility score for the antibody model was 98.7, which was greater than the low score 46.2 and close to the top score 102.6. In addition, parathion and several structural analogues were docked to the constructed antibody structure. The docking results showed that the interaction energy (-40.54 kcal/mol) of antibody-parathion complex was the lowest among all the tested pesticides, which accounted for the high specificity of the antibody to parathion and perfectly matched with the experimental data. Moreover, three residues, Phe165, Asp107 and Thr100 were recognized as the most important residues for antibody reacting with parathion. The interaction energy negatively correlated with the antibody specificity.
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Affiliation(s)
- Yi H Liu
- Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, China
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Chapter 12 Advances in the Discovery of Small Molecule JAK3 Inhibitors. ANNUAL REPORTS IN MEDICINAL CHEMISTRY 2009. [DOI: 10.1016/s0065-7743(09)04412-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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