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Zhang Z, Luo J, Liu H, Wang S, An X, Li X, Wang W. Sonic hedgehog (shh) gene from Pseudopleuronectes yokohamae (Teleostei: Pleuronectidae): Molecular cloning, characterization, and expression profile during early embryonic, juvenile, and adult stages. JOURNAL OF FISH BIOLOGY 2024. [PMID: 38965864 DOI: 10.1111/jfb.15839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 05/04/2024] [Accepted: 05/23/2024] [Indexed: 07/06/2024]
Abstract
The hedgehog signaling pathway plays an important role in early development and growth of most vertebrates. Sonic hedgehog (shh) gene is a critical regulator of embryonic development in many species, including humans. However, it is not clear what roles shh can play in the development of fish. In this paper, shh gene was cloned from Pseudopleuronectes yokohamae. The full-length complementary DNA (cDNA) of P. yokohamae sonic hedgehog gene (Pyshh) comprises 3194 bp, with a 1317-bp open reading frame (ORF) that encodes a polypeptide of 438 amino acids with a typical HH-signal domain and Hint-N domain. The conserved sequences of the protein among species were predicted by using multiple sequence comparison. The phylogenetic tree construction showed that PySHH is clustered in a branch of Pleuronectidae. To explore the expression of Pyshh gene in various tissues of P. yokohamae, we used real-time fluorescence quantitative PCR technology to detect it. The results showed that Pyshh gene is widely distributed in various tissues of P. yokohamae juveniles, different tissues of adult males and females, and is particularly expressed in immune organs. The Pyshh gene expression was higher in the muscle and brain of juvenile fish, and higher in bone, gill, and skin of male fish than that of female fish, suggesting that Pyshh might be involved in the formation of immune organs of P. yokohamae. The expression of Pyshh gene significantly upregulated from the gastrula stage to the hatching stage. Western blotting of the expression levels of PySHH during different embryonic development stages revealed that PySHH levels increased gradually during development stages from oosperm stage to hatching stage. These results indicate that Pyshh is highly conserved among species and plays a critical role in the complex process of embryonic development. Its precise regulation is essential for the proper formation of many organs and tissues in the body, and disruptions in its function may have serious consequences for the formation of immune organs in fish.
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Affiliation(s)
- Zheng Zhang
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, China
| | - Jun Luo
- College of Environmental Sciences and Engineering, Dalian Maritime University, Dalian, China
- Dalian Sunasia Tourism Holding Co., LTD, Dalian, China
| | - Hui Liu
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, China
| | - Shuai Wang
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, China
| | - Xilin An
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, China
| | - Xuejie Li
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, China
| | - Wei Wang
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, China
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Zhang Z, Wang W, Wei Y, Gu Y, Wang Y, Li X, Wang W. Cloning, tissue distribution of desert hedgehog (dhh) gene and expression profiling during different developmental stages of Pseudopleuronectes yokohamae. Gene Expr Patterns 2022; 46:119277. [PMID: 36152995 DOI: 10.1016/j.gep.2022.119277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/12/2022] [Accepted: 09/18/2022] [Indexed: 01/09/2023]
Abstract
As a crucial member of the Hedgehog (Hh) protein family, desert hedgehog (dhh) plays a vital role in multiple developmental processes, cell differentiation and tissue homeostasis. However, it is unclear how it regulates development in fish. In this study, we cloned and characterized the dhh gene from Pseudopleuronectes yokohamae. The full-length cDNA of Pydhh comprises 3194 bp, with a 1386 bp open reading frame (ORF) that encodes a polypeptide of 461 amino acids with a typical HH-signal domain, Hint-N and Hint-C domains. Multiple sequence alignment revealed that the putative PyDHH protein sequence was highly conserved across species, especially in the typical domains. Phylogenetic analysis showed that the PyDHH clustered within the Pleuronectiformes. Real-time quantitative PCR showed that Pydhh was detected in fourteen different tissues in adult-female and adult-male marbled flounder, and nine different tissues in juvenile fish. During early embryonic development stages, the expression of Pydhh was revealed high levels at hatching stage of embryo development. Moreover, the relative expression of Pydhh was significantly higher in the juvenile liver than adults', and higher in the female skin than the male skin. To further investigate its location, the in situ hybridization (ISH) assay was performed, the results showed that the hybridization signal was obviously expressed in the immune organs of Pseudopleuronectes yokohamae, with weak signal expression in the other tissues. Our results suggested that Pydhh is highly conserved among species and plays a vital role in embryonic development and formation of immune related organs.
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Affiliation(s)
- Zheng Zhang
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, 116023, China
| | - Wenjie Wang
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, 116023, China
| | - Yanchao Wei
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, 116023, China
| | - Yixin Gu
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, 116023, China
| | - Yue Wang
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, 116023, China
| | - Xuejie Li
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, 116023, China.
| | - Wei Wang
- Key Laboratory of Applied Biology and Aquaculture of Northern Fishes in Liaoning Province, Dalian Ocean University, Dalian, 116023, China.
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Molecular characterization and expression profiling of caveolin-1 from Amphiprion clarkii and elucidation of its involvement in antiviral response and redox homeostasis. Comp Biochem Physiol B Biochem Mol Biol 2022; 262:110775. [DOI: 10.1016/j.cbpb.2022.110775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 06/07/2022] [Accepted: 06/24/2022] [Indexed: 11/20/2022]
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Huang H, Liu J, Yao F, Li X, Wang Y, Shao Y, Wang X, Kong J, Zhang X, Jiang T, Hou L. The integrator complex subunit 11 is involved in the post-diapaused embryonic development and stress response of Artemia sinica. Gene 2020; 741:144548. [PMID: 32165292 DOI: 10.1016/j.gene.2020.144548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/15/2019] [Accepted: 03/08/2020] [Indexed: 01/31/2023]
Abstract
The Integrator complex (INT) contains several subunits that participate in RNAPII transcription and the 3' end process of non-coding RNAs. INTS11 is the catalytic subunit that interacts with the C-terminal domain of RNAPII, recently found to play a role in embryo development in different experimental models. However, the involvement of INTS11 is still ignorant in crustaceans, particularly in post-diapause embryonic development of Artemia sinica. In the present research, the full-length cDNA of As-Ints11 gene (1964 bp) was cloned from A. sinica by the RACE technique. The deduced 597 amino acids sequence contains the most identifiable domains of the INTs and is highly conserved. Immunofluorescence assay showed that the INTS11 was present at diverse developmental status in A. sinica: the As-INTS11 can be found in both cytoplasm and nucleus of the embryos, and the location showed no specificity in tissue or organ of the nauplius. The expression patterns of As-Ints11 were analyzed by qPCR and Western blotting, which show similar trends that peaked at the 15 h stage of embryo development. Moreover, the expressions of interacting proteins As-INTS9 and As-RNAPII were also detected, results display a synergetic effect with the As-INTS11 at both mRNA and protein levels. We also explored the amount of As-INTS11, As-INTS9 and As-RNAPII under different stresses, and the results indicate that the As-INTS11 is a stress-related protein though the mechanism needs further research. Knocking down of the As-INTS11 resulted in a delay of post-diapaused embryonic development in A. sinica.
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Affiliation(s)
- Huifang Huang
- School of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Jinzhi Liu
- School of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Feng Yao
- School of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Xiuling Li
- School of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Yanan Wang
- School of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Yuting Shao
- School of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Xinyao Wang
- School of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Jiahui Kong
- School of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Xingzheng Zhang
- School of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Tao Jiang
- Department of Biology, Dalian Medical University, Dalian, China.
| | - Lin Hou
- School of Life Sciences, Liaoning Normal University, Dalian 116081, China.
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5
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Li N, Yao F, Huang H, Zhang H, Zhang W, Zou X, Sui L, Hou L. The potential role of Annexin 3 in diapause embryo restart of
Artemia sinica
and in response to stress of low temperature. Mol Reprod Dev 2019; 86:530-542. [DOI: 10.1002/mrd.23130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/21/2019] [Accepted: 01/31/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Na Li
- College of Life Sciences, Liaoning Normal UniversityDalian China
| | - Feng Yao
- College of Life Sciences, Liaoning Normal UniversityDalian China
| | - Huifang Huang
- College of Life Sciences, Liaoning Normal UniversityDalian China
| | - Hong Zhang
- College of Life Sciences, Liaoning Normal UniversityDalian China
| | - Wan Zhang
- College of Life Sciences, Liaoning Normal UniversityDalian China
| | - Xiangyang Zou
- Department of BiologyDalian Medical UniversityDalian China
| | - Linlin Sui
- Department of BiologyDalian Medical UniversityDalian China
| | - Lin Hou
- College of Life Sciences, Liaoning Normal UniversityDalian China
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Li XJ, Yang L, Li D, Zhu YT, Wang Q, Li WW. Pathogen-Specific Binding Soluble Down Syndrome Cell Adhesion Molecule (Dscam) Regulates Phagocytosis via Membrane-Bound Dscam in Crab. Front Immunol 2018; 9:801. [PMID: 29720978 PMCID: PMC5915466 DOI: 10.3389/fimmu.2018.00801] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/03/2018] [Indexed: 11/13/2022] Open
Abstract
The Down syndrome cell adhesion molecule (Dscam) gene is an extraordinary example of diversity that can produce thousands of isoforms and has so far been found only in insects and crustaceans. Cumulative evidence indicates that Dscam may contribute to the mechanistic foundations of specific immune responses in insects. However, the mechanism and functions of Dscam in relation to pathogens and immunity remain largely unknown. In this study, we identified the genome organization and alternative Dscam exons from Chinese mitten crab, Eriocheir sinensis. These variants, designated EsDscam, potentially produce 30,600 isoforms due to three alternatively spliced immunoglobulin (Ig) domains and a transmembrane domain. EsDscam was significantly upregulated after bacterial challenge at both mRNA and protein levels. Moreover, bacterial specific EsDscam isoforms were found to bind specifically with the original bacteria to facilitate efficient clearance. Furthermore, bacteria-specific binding of soluble EsDscam via the complete Ig1–Ig4 domain significantly enhanced elimination of the original bacteria via phagocytosis by hemocytes; this function was abolished by partial Ig1–Ig4 domain truncation. Further studies showed that knockdown of membrane-bound EsDscam inhibited the ability of EsDscam with the same extracellular region to promote bacterial phagocytosis. Immunocytochemistry indicated colocalization of the soluble and membrane-bound forms of EsDscam at the hemocyte surface. Far-Western and coimmunoprecipitation assays demonstrated homotypic interactions between EsDscam isoforms. This study provides insights into a mechanism by which soluble Dscam regulates hemocyte phagocytosis via bacteria-specific binding and specific interactions with membrane-bound Dscam as a phagocytic receptor.
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Affiliation(s)
- Xue-Jie Li
- Laboratory of Invertebrate Immunological Defense and Reproductive Biology, School of Life Sciences, East China Normal University, Shanghai, China
| | - Lei Yang
- Laboratory of Invertebrate Immunological Defense and Reproductive Biology, School of Life Sciences, East China Normal University, Shanghai, China
| | - Dan Li
- Laboratory of Invertebrate Immunological Defense and Reproductive Biology, School of Life Sciences, East China Normal University, Shanghai, China
| | - You-Ting Zhu
- Laboratory of Invertebrate Immunological Defense and Reproductive Biology, School of Life Sciences, East China Normal University, Shanghai, China
| | - Qun Wang
- Laboratory of Invertebrate Immunological Defense and Reproductive Biology, School of Life Sciences, East China Normal University, Shanghai, China
| | - Wei-Wei Li
- Laboratory of Invertebrate Immunological Defense and Reproductive Biology, School of Life Sciences, East China Normal University, Shanghai, China
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Udayantha HMV, Bathige SDNK, Priyathilaka TT, Lee S, Kim MJ, Lee J. Identification and characterization of molluscan caveolin-1 ortholog from Haliotis discus discus: Possible involvement in embryogenesis and host defense mechanism against pathogenic stress. Gene Expr Patterns 2017; 27:85-92. [PMID: 29128397 DOI: 10.1016/j.gep.2017.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 06/13/2017] [Accepted: 11/06/2017] [Indexed: 02/05/2023]
Abstract
Caveolins are principal membrane proteins of caveolae that play a central role in signal transduction, substrate transport, and membrane trafficking in various cell types. Numerous studies have reported the crucial role of caveolin-1 (CAV1) in response to invading microbes; yet, very little is known about molluscan CAV1. In this study, we identified and characterized CAV1 ortholog from the disk abalone, Haliotis discus discus (HdCAV1). The cDNA sequence of HdCAV1 is 826 bp long and encodes a 127-amino acid polypeptide. Characteristic caveolin superfamily domain (Glu3 - Lys126) and two possible transmembrane domains (Cys48 - Tyr67 and Ile103 - Phe120) were identified in the HdCAV1 protein. Homology analysis revealed that HdCAV1 shared higher identity (>47%) with molluscans, but lower identity with other species. Phylogenetic tree constructed by the neighbor-joining (NJ) method revealed a distinct evolutionary pathway for molluscans. Transcriptional analysis by SYBR Green qPCR showed the highest expression of HdCAV1 mRNA in late veliger stage, as compared to that in other embryonic developmental stages of disk abalone. In adult animals, gill tissue showed highest HdCAV1 transcript levels under normal physiological condition. Stimulations with two bacteria (Vibrio parahaemolyticus and Listeria monocytogenes), viral hemorrhagic septicemia virus, and two pathogen-associated molecular patterns (LPS and poly I:C) significantly modulated the expression of HdCAV1 transcripts. Collectively, these data suggest that CAV1 plays an important role in embryogenesis and host immune defense in disk abalone.
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Affiliation(s)
- H M V Udayantha
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea; Department of Fisheries and Aquaculture, Faculty of Fisheries and Marine Sciences and Technology, University of Ruhuna, Matara, Sri Lanka
| | - S D N K Bathige
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea; Sri Lanka Institute of Nanotechnology (SLINTEC), Nanotechnology and Science Park, Mahenwatta, Pitipana, Homagama, Sri Lanka
| | - Thanthrige Thiunuwan Priyathilaka
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea
| | - Sukkyoung Lee
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea
| | - Myoung-Jin Kim
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea.
| | - Jehee Lee
- Department of Marine Life Sciences, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea; Fish Vaccine Research Center, Jeju National University, Jeju Self-Governing Province 63243, Republic of Korea.
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8
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Zhang M, Yao F, Qin T, Hou L, Zou X. Identification, expression pattern and functional characterization of As-kip2 in diapause embryo restarting process of Artemia sinica. Gene 2017; 608:28-40. [DOI: 10.1016/j.gene.2017.01.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 12/27/2016] [Accepted: 01/17/2017] [Indexed: 10/20/2022]
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9
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Zhu X, Zhang M, Yao F, Yin Y, Zou X, Hou L. Involvement of PGRP-SC2 from Artemia sinica in the innate immune response against bacteria and expression pattern at different developmental stages. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2017; 67:276-286. [PMID: 27646138 DOI: 10.1016/j.dci.2016.09.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 09/14/2016] [Accepted: 09/16/2016] [Indexed: 06/06/2023]
Abstract
Peptidoglycan-recognition protein-SC2 precursor-like protein (PGRP-SC2) is a vital protein in innate immunity with a vita role in response to bacteria challenge in invertebrates. Here, a 678-bp full-length cDNA of pgrp-sc2 from A. sinica was obtained containing a 558-bp open reading frame encoding 185 amino acids with a calculated molecular mass of 19.6 kDa. The predicted protein contains a PGRP and an Amidase2 domain, indicating that PGRP-SC2 is a PGRP family member and has N-acetylmuramoyl-l-alanine amidase activity. The expression and localization of pgrp-sc2/PGRP-SC2 in A.sinica during embryonic development and bacterial challenge were determined by qPCR, WB and ISH. During different A. sinica embryonic development stages, the expression level of pgrp-sc2/PGRP-SC2 was most highly expressed at 0 and 5 h and after challenge by Gram-positive bacteria, it increased with increasing bacterial concentrations, indicating that it plays a vital role in A. sinica early embryonic development and innate immunity.
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Affiliation(s)
- Xiaolin Zhu
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Mengchen Zhang
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Feng Yao
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Yuling Yin
- Department of Biotechnology, Dalian Medical University, Dalian 116044, China
| | - Xiangyang Zou
- Department of Biotechnology, Dalian Medical University, Dalian 116044, China.
| | - Lin Hou
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China.
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10
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Zhang M, Yao F, Luan H, Zhao W, Jing T, Zhang S, Hou L, Zou X. APC/C CDC20 and APC/C play pivotal roles in the process of embryonic development in Artemia sinica. Sci Rep 2016; 6:39047. [PMID: 27991546 PMCID: PMC5171921 DOI: 10.1038/srep39047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 11/17/2016] [Indexed: 11/09/2022] Open
Abstract
Anaphase Promoting Complex or Cyclosome (APC/C) is a representative E3 ubiquitin ligase, triggering the transition of metaphase to anaphase by regulating degradation and ensures the exit from mitosis. Cell division cycle 20 (CDC20) and Cell division cycle 20 related protein 1 (CDH1), as co-activators of APC/C, play significant roles in the spindle assembly checkpoint, guiding ubiquitin-mediated degradation, together with CDC23. During the embryonic development of the brine shrimp, Artemia sinica, CDC20, CDH1 and CDC23 participate in cell cycle regulation, but the specific mechanisms of their activities remain unknown. Herein, the full-length cDNAs of cdc20 and cdc23 from A. sinica were cloned. Real-time PCR analyzed the expression levels of As-cdc20 and As-cdc23. The locations of CDH1, CDC20 and CDC23 showed no tissue or organ specificity. Furthermore, western blotting showed that the levels of As-CDC20, securin, cyclin B, CDK1, CDH1, CDC14B, CDC23 and geminin proteins conformed to their complicated degradation relationships during different embryo stages. Our research revealed that As-CDC20, As-CDH1 and APC mediate the mitotic progression, downstream proteins degradation and cellular differentiation in the process of embryonic development in A. sinica.
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Affiliation(s)
- Mengchen Zhang
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Feng Yao
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Hong Luan
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Wei Zhao
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Ting Jing
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Shuang Zhang
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Lin Hou
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Xiangyang Zou
- Department of Biology, Dalian Medical University, Dalian 116044, China
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11
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Fang A, Li X, Wang Y, Pan D, Wang Q. A core component of the CUL4 ubiquitin ligase complexes, DDB1, regulates spermatogenesis in the Chinese mitten crab, Eriocheir sinensis. Gene 2016; 601:11-20. [PMID: 27923671 DOI: 10.1016/j.gene.2016.11.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 11/15/2016] [Accepted: 11/23/2016] [Indexed: 10/20/2022]
Abstract
Studies in mammals have shown that damaged DNA-binding protein 1 (DDB1) is a multifunctional protein that recognizes UV-induced DNA lesions and activates nucleotide excision repair process, and could also be a linker protein for Cullin4 in ubiquitination to regulate cell cycle progression. However, there are few studies of DBB1 in crustaceans. In this study, a cDNA representing the DDB1 gene from Eriocheir sinensis (Es-DDB1) was cloned successfully. The full length Es-DDB1 cDNA comprises 4871 nucleotides, and encodes an open-reading frame (ORF) of 1137 amino acid residues. Bioinformatics' analysis showed that the domains and structure of Es-DDB1 have been highly conserved during evolution. Antibodies against Es-DDB1 and Es-Cul4 were raised using a prokaryotic expression system. Moreover, a co-immunoprecipitation assay showed that Es-DDB1 could bind Es-Cul4 in the testis of Eriocheir sinensis. Furthermore, quantitative real-time PCR and Western blotting showed high expression in the testis, particularly during the spermatocyte stage. Immunofluorescence assays showed that Es-DDB1 was mainly distributed in the cytoplasm in the early and middle developmental stages. These results indicated that Es-DDB1 might play a key role in spermatogenesis of E. sinensis.
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Affiliation(s)
- AnYu Fang
- Laboratory of Invertebrate Immunological Defense & Reproductive Biology, School of Life Science, East China Normal University, Shanghai, China
| | - XueJie Li
- Laboratory of Invertebrate Immunological Defense & Reproductive Biology, School of Life Science, East China Normal University, Shanghai, China
| | - YuanLi Wang
- Laboratory of Invertebrate Immunological Defense & Reproductive Biology, School of Life Science, East China Normal University, Shanghai, China
| | - DiYue Pan
- Laboratory of Invertebrate Immunological Defense & Reproductive Biology, School of Life Science, East China Normal University, Shanghai, China
| | - Qun Wang
- Laboratory of Invertebrate Immunological Defense & Reproductive Biology, School of Life Science, East China Normal University, Shanghai, China.
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12
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Wang X, Yao F, Liang X, Zhu X, Zheng R, Jia B, Hou L, Zou X. Cloning and expression of retinoblastoma-binding protein 4 gene in embryo diapause termination and in response to salinity stress from brine shrimp Artemia sinica. Gene 2016; 591:351-61. [PMID: 27267406 DOI: 10.1016/j.gene.2016.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 05/17/2016] [Accepted: 06/03/2016] [Indexed: 11/30/2022]
Abstract
Retinoblastoma binding protein 4 (RBBP4) is a nuclear protein with four WD-repeat sequences and thus belongs to a highly conserved subfamily of proteins with such domains. This retinoblastoma-binding protein plays an important role in nucleosome assembly and histone modification, which influences gene transcription and regulates cell cycle and proliferation. Artemia sinica (brine shrimp) undergoes an unusual diapause process under stress conditions of high salinity and low temperature. However, the role of RBBP4 in diapause termination of embryo development in A. sinica remains unknown. Here, the full-length cDNA of the As-rbbp4 gene was obtained from A. sinica and found to contain 1411 nucleotides, including a 1281 bp open reading frame (ORF), 63 bp 5'-untranslated region (UTR) and a 67-bp 3'-UTR, which encodes a 427 amino acid (48 kDa) protein. Bioinformatic analysis indicated As-RBBP4 to be mainly located in the nucleus, with a theoretical isoelectric point of 4.79. Protein sequence domain analysis showed that As-RBBP4 is a conserved protein, especially in the WD40 domain. No specificity in expression of this gene was observed in tissues or organs by in situ hybridization. Real-time quantitative PCR and Western blot analyses of As-RBBP4 gene and protein expression, respectively, showed notably high levels at 10 h and a subsequent downward trend. Obvious trends in upregulation of As-RBBP4 were observed under conditions of low temperature and high salinity stress. As-E2F1 and As-CyclinE also presented similar trends as that of As-RBBP4 in Western blots. Analysis of the RBBP4 expression in early embryonic development of A. sinica indicated that this protein plays an important role in diapause termination and cell cycle regulation.
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Affiliation(s)
- Xiaolu Wang
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Feng Yao
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Xiaoyu Liang
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Xiaolin Zhu
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Ren Zheng
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Baolin Jia
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China
| | - Lin Hou
- College of Life Sciences, Liaoning Normal University, Dalian 116081, China.
| | - Xiangyang Zou
- Department of Biology, Dalian Medical University, Dalian 116044, China.
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Huang J, Li F, Wu J, Yang F. White spot syndrome virus enters crayfish hematopoietic tissue cells via clathrin-mediated endocytosis. Virology 2015; 486:35-43. [PMID: 26397221 DOI: 10.1016/j.virol.2015.08.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 08/21/2015] [Accepted: 08/31/2015] [Indexed: 12/20/2022]
Abstract
White spot syndrome virus (WSSV) is a major pathogen of aquacultured shrimp. However, the mechanism of its entry remains poorly understood. In this study, by analyzing the internalization of WSSV using crayfish hematopoietic tissue (HPT) cells, we showed that WSSV virions were engulfed by cell membrane invaginations sharing the features of clathrin-coated pits and then internalized into coated cytoplasmic vesicles. Further investigation indicated that WSSV internalization was significantly inhibited by chlorpromazine (CPZ) but not genistein. The internalized virions were colocalized with endogenous clathrin as well as transferrin which undergoes clathrin-dependent uptake. Preventing endosome acidification by ammonium chloride (NH4Cl) or chloroquine (CQ) dramatically reduced WSSV entry as well. Moreover, disturbance of dynamin activity or depletion of membrane cholesterol also blocked WSSV uptake. These data indicate that WSSV enters crayfish HPT cells via clathrin-mediated endocytosis in a pH-dependent manner, and membrane cholesterol as well as dynamin is critical for efficient viral entry.
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Affiliation(s)
- Jiajun Huang
- Key Laboratory of Marine Genetic Resources, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
| | - Fang Li
- Key Laboratory of Marine Genetic Resources, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China.
| | - Junjun Wu
- Key Laboratory of Marine Genetic Resources, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
| | - Feng Yang
- Key Laboratory of Marine Genetic Resources, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China.
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