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Wang H, Liu S, Xun X, Li M, Lou J, Zhang Y, Shi J, Hu J, Bao Z, Hu X. Toxin- and species-dependent regulation of ATP-binding cassette (ABC) transporters in scallops after exposure to paralytic shellfish toxin-producing dinoflagellates. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 230:105697. [PMID: 33254068 DOI: 10.1016/j.aquatox.2020.105697] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 11/12/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
ATP-binding cassette (ABC) transporters are membrane-bound proteins involved in exporting various xenobiotic compounds from living cells. Bivalve mollusks can accumulate large amounts of paralytic shellfish toxins (PSTs) from marine dinoflagellates. For aquatic invertebrates, the importance of ABC proteins in multi-xenobiotic resistance has been demonstrated, however, the systematic identification of ABC transporters is very limited. In this study, 64 and 67 ABC genes containing all eight described subfamilies (A to H) were identified in Yesso scallop (Patinopecten yessoensis) and Zhikong scallop (Chlamys farreri), respectively, with massive gene expansion being observed in the ABCC and ABCG subfamilies. The kidney harbored more specifically expressed ABC genes than other organs/tissues, most of which belonged to ABCB, ABCC, and ABCG subfamilies. After feeding the scallops with PST-producing dinoflagellates, the expression of scallop ABC genes in the kidney was regulated in toxin- and species-dependent manners. In total, 20 and 24 ABC genes in Zhikong scallop (CfABCs) were induced after exposure to Alexandrium minutum and A. catenella, with the up-regulated members from both ABCC and ABCG subfamilies mainly showing acute and chronic induction by A. minutum and A. catenella, respectively, while the up-regulated CfABCBs mainly showing chronic induction by both dinoflagellates. In Yesso scallop, only eight ABC genes (PyABCs) were regulated after A. catenella exposure, and all the five up-regulated PyABCs were acutely induced. Our findings imply the functional diversity of scallop ABC genes in coping with PST accumulation, which may contribute to the lineage-specific adaptation of scallops for dealing with algal toxins challenge.
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Affiliation(s)
- Huizhen Wang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Shiqi Liu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Xiaogang Xun
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Moli Li
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Jiarun Lou
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Yihan Zhang
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Jiaoxia Shi
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Jingjie Hu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Zhenmin Bao
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Xiaoli Hu
- MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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Péden R, Rocher B, Chan P, Vaudry D, Poret A, Olivier S, Le Foll F, Bultelle F. Consequences of acclimation on the resistance to acute thermal stress: Proteomic focus on mussels from pristine site. MARINE ENVIRONMENTAL RESEARCH 2016; 121:64-73. [PMID: 26972988 DOI: 10.1016/j.marenvres.2016.02.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 02/10/2016] [Accepted: 02/14/2016] [Indexed: 06/05/2023]
Abstract
Climate change constitutes an additional threat for intertidal species that already have to cope with a challenging environment. The present study focuses on the blue mussel Mytilus edulis and aims at investigating the importance of thermal acclimation in heat stress response. Microcosm exposures were performed with mussels submitted to an identical acute thermal stress following two thermal summer acclimations standing for present or future temperature conditions. Gill proteomes were analyzed by 2DE and 96 differentially expressed proteoforms were identified. Our results show that cell integrity appears to be maintained by the rise in molecular protective systems (i.e. Heat Shock Proteins), and by the reallocation of energy production via a switch to anaerobic metabolism and the setting up of alternative energy pathways. Finally, our results indicate that the response of mussels to acute thermal stress is conditioned by the acclimation temperature with an improved response in organisms acclimated to higher temperatures.
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Affiliation(s)
- Romain Péden
- Laboratory of Ecotoxicology, UMR-I 02 SEBIO, Le Havre University, Normandy University, France.
| | - Béatrice Rocher
- Laboratory of Ecotoxicology, UMR-I 02 SEBIO, Le Havre University, Normandy University, France
| | - Philippe Chan
- Platform in Proteomics PISSARO IRIB, Rouen University, Normandy University, France
| | - David Vaudry
- Platform in Proteomics PISSARO IRIB, Rouen University, Normandy University, France; Laboratory of Neuronal and Neuroendocrine Differenciation and Communication, INSERM U982, Rouen University, Normandy University, France
| | - Agnès Poret
- Laboratory of Ecotoxicology, UMR-I 02 SEBIO, Le Havre University, Normandy University, France
| | - Stéphanie Olivier
- Laboratory of Ecotoxicology, UMR-I 02 SEBIO, Le Havre University, Normandy University, France
| | - Frank Le Foll
- Laboratory of Ecotoxicology, UMR-I 02 SEBIO, Le Havre University, Normandy University, France
| | - Florence Bultelle
- Laboratory of Ecotoxicology, UMR-I 02 SEBIO, Le Havre University, Normandy University, France
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Zhu B, Huang L, Huang HQ. Cloning analysis of ferritin and the cisplatin-subunit for cancer cell apoptosis in Aplysia juliana hepatopancreas. Comp Biochem Physiol C Toxicol Pharmacol 2012; 156:95-103. [PMID: 22579997 DOI: 10.1016/j.cbpc.2012.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Revised: 04/03/2012] [Accepted: 04/25/2012] [Indexed: 11/27/2022]
Abstract
Ferritin, an iron storage protein, plays a key role in iron metabolism in vivo. Here, we have cloned an inducible ferritin cDNA with 519 bp within the open reading frame fragment from the hepatopancreas of Aplysia juliana (AJ). The subunit sequence of the ferritin was predicted to be a polypeptide of 172 amino acids with a molecular mass of 19.8291kDa and an isoelectric point of 5.01. The cDNA sequence of hepatopancreas ferritin in AJ was constructed into a pET-32a system for expressing its relative protein efficiently in E. coli strain BL21, under isopropyl-β-d-thiogalactoside induction. The recombinant ferritin, which was further purified on a Ni-NTA resin column and digested with enterokinase, was detected as a single subunit of approximately 20 kDa mass using both SDS-PAGE and mass spectrometry. The secondary structure and phosphorylation sites of the deduced amino acids were predicted using both ExPASy proteomic tools and the NetPhos 2.0 server, and the subunit space structure of the recombinant AJ ferritin (rAjFer) was built using a molecular operating environment software system. The result of in-gel digestion and identification using MALDI-TOF MS/MS showed that the recombinant protein was AjFer. ICP-MS results indicated that the rAjFer subunit could directly bind to cisplatin[cis-Diaminedichloroplatinum(CDDP)], giving approximately 17.6 CDDP/ferritin subunits and forming a novel CDDP-subunit. This suggests that a nanometer CDDP core-ferritin was constructed, which could be developed as a new anti-cancer drug. The flow cytometry results indicated that CDDP-rAjFer could induce Hela cell apoptosis. Results of the real-time PCR and Western blotting showed that the expression of AjFer mRNA was up-regulated in AJ under Cd(2+) stress. The recombinant AjFer protein should prove to be useful for further study of the structure and function of ferritin in Aplysia.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antineoplastic Agents/pharmacology
- Aplysia/drug effects
- Aplysia/genetics
- Aplysia/metabolism
- Apoptosis
- Base Sequence
- Cadmium/pharmacology
- Cell Proliferation/drug effects
- Cisplatin/metabolism
- Cisplatin/pharmacology
- Cloning, Molecular
- DNA, Complementary/genetics
- DNA, Complementary/metabolism
- Drug Screening Assays, Antitumor
- Electrophoresis, Polyacrylamide Gel
- Escherichia coli/genetics
- Escherichia coli/metabolism
- Ferritins/classification
- Ferritins/genetics
- Ferritins/metabolism
- Ferritins/pharmacology
- Flow Cytometry
- Gene Expression Regulation
- HeLa Cells
- Hepatopancreas/drug effects
- Hepatopancreas/metabolism
- Humans
- Isoelectric Point
- Isopropyl Thiogalactoside/metabolism
- Molecular Sequence Data
- Molecular Weight
- Open Reading Frames
- Phosphorylation
- Phylogeny
- Protein Binding
- Protein Structure, Secondary
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/metabolism
- Recombinant Fusion Proteins/pharmacology
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/methods
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Affiliation(s)
- Bo Zhu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, China
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