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Kim WS, Park K, Kim JH, Kwak IS. Effect of endocrine-disrupting chemicals on the expression of a calcium ion channel receptor (ryanodine receptor) in the mud crab (Macrophthalmus japonicus). Comp Biochem Physiol C Toxicol Pharmacol 2024; 283:109972. [PMID: 38972622 DOI: 10.1016/j.cbpc.2024.109972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/11/2024] [Accepted: 07/04/2024] [Indexed: 07/09/2024]
Abstract
Endocrine-disrupting chemicals (EDCs) are toxic pollutants generated by artificial activities. Moreover, their hormone-like structure induces disturbances, such as mimicking or blocking metabolic activity. Previous studies on EDCs have focused on the adverse effect of the endocrine system in vertebrates, with limited investigations conducted on ion channels in invertebrates. Thus, in this study, we investigated the potential adverse effects of exposure to bisphenol-A (BPA) and di-(2-ethylhexyl) phthalate (DEHP) at the molecular level on the ryanodine receptor (RyR), a calcium ion channel receptor in Macrophthalmus japonicus. In the phylogenetic analysis, the RyR amino acid sequences in M. japonicus clustered with those in the Crustacean and formed separated branches for RyR in insects and mammals. When exposed to 1 μg L-1 BPA, a significant increase in RyR mRNA expression was observed in the gills on day 1, although a similar level to the control group was observed from day 4 to day 7. However, the RyR expression due to DEHP exposure decreased on days 1 and 4, although it increased on day 7 following exposure to 10 μg L-1. The RyR expression pattern in the hepatopancreas increased for up to 4 days, depending on the BPA concentration. However, there was a tendency for the expression to decrease gradually after the statistical significance increased during the early stage of DEHP exposure (D1). Hence, the transcriptional alterations in the M. japonicus RyR gene observed in the study suggest that exposure toxicities to EDCs, such as BPA and DEHP, have the potential to disrupt calcium ion channel signaling in the gills and hepatopancreas of M. japonicus crabs.
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Affiliation(s)
- Won-Seok Kim
- Department of Ocean Integrated Science, Chonnam National University, Yeosu 59626, South Korea
| | - Kiyun Park
- Fisheries Science Institute, Chonnam National University, Yeosu 59626, South Korea
| | - Ji-Hoon Kim
- Department of Ocean Integrated Science, Chonnam National University, Yeosu 59626, South Korea
| | - Ihn-Sil Kwak
- Department of Ocean Integrated Science, Chonnam National University, Yeosu 59626, South Korea; Fisheries Science Institute, Chonnam National University, Yeosu 59626, South Korea.
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Abaeva IS, Young C, Warsaba R, Khan N, Tran L, Jan E, Pestova T, Hellen CT. The structure and mechanism of action of a distinct class of dicistrovirus intergenic region IRESs. Nucleic Acids Res 2023; 51:9294-9313. [PMID: 37427788 PMCID: PMC10516663 DOI: 10.1093/nar/gkad569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/06/2023] [Accepted: 06/22/2023] [Indexed: 07/11/2023] Open
Abstract
Internal ribosomal entry sites (IRESs) engage with the eukaryotic translation apparatus to promote end-independent initiation. We identified a conserved class of ∼150 nt long intergenic region (IGR) IRESs in dicistrovirus genomes derived from members of the phyla Arthropoda, Bryozoa, Cnidaria, Echinodermata, Entoprocta, Mollusca and Porifera. These IRESs, exemplified by Wenling picorna-like virus 2, resemble the canonical cricket paralysis virus (CrPV) IGR IRES in comprising two nested pseudoknots (PKII/PKIII) and a 3'-terminal pseudoknot (PKI) that mimics a tRNA anticodon stem-loop base-paired to mRNA. However, they are ∼50 nt shorter than CrPV-like IRESs, and PKIII is an H-type pseudoknot that lacks the SLIV and SLV stem-loops that are primarily responsible for the affinity of CrPV-like IRESs for the 40S ribosomal subunit and that restrict initial binding of PKI to its aminoacyl (A) site. Wenling-class IRESs bound strongly to 80S ribosomes but only weakly to 40S subunits. Whereas CrPV-like IRESs must be translocated from the A site to the peptidyl (P) site by elongation factor 2 for elongation to commence, Wenling-class IRESs bound directly to the P site of 80S ribosomes, and decoding begins without a prior translocation step. A chimeric CrPV clone containing a Wenling-class IRES was infectious, confirming that the IRES functioned in cells.
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Affiliation(s)
- Irina S Abaeva
- Department of Cell Biology, SUNY Downstate Health Sciences University, Brooklyn, NY 11203, USA
| | - Christina Young
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Reid Warsaba
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Nadiyah Khan
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Lan Vy Tran
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Eric Jan
- Department of Biochemistry and Molecular Biology, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Tatyana V Pestova
- Department of Cell Biology, SUNY Downstate Health Sciences University, Brooklyn, NY 11203, USA
| | - Christopher U T Hellen
- Department of Cell Biology, SUNY Downstate Health Sciences University, Brooklyn, NY 11203, USA
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Dimos B, Emery M, Beavers K, MacKnight N, Brandt M, Demuth J, Mydlarz L. Adaptive Variation in Homolog Number Within Transcript Families Promotes Expression Divergence in Reef-Building Coral. Mol Ecol 2022; 31:2594-2610. [PMID: 35229964 DOI: 10.1111/mec.16414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 02/10/2022] [Accepted: 02/22/2022] [Indexed: 11/30/2022]
Abstract
Gene expression, especially in multi-species experiments, is used to gain insight into the genetic basis of how organisms adapt and respond to changing environments. However, evolutionary processes which can influence gene expression patterns between species such as the presence of paralogs which arise from gene duplication events are rarely accounted for. Paralogous transcripts can alter the transcriptional output of a gene and thus exclusion of these transcripts can obscure important biological differences between species. To address this issue, we investigated how differences in transcript family size is associated with divergent gene expression patterns in five species of Caribbean reef-building corals. We demonstrate that transcript families that are rapidly evolving in terms of size have increased levels of expression divergence. Additionally, these rapidly evolving transcript families are enriched for multiple biological processes, with genes involved in the coral innate immune system demonstrating pronounced variation in homolog number between species. Overall, this investigation demonstrates the importance of incorporating paralogous transcripts when comparing gene expression across species by influencing both transcriptional output and the number of transcripts within biological processes. As this investigation was based on transcriptome assemblies, additional insights into the relationship between gene duplications and expression patterns will likely emergence once more genome assemblies are available for study.
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Affiliation(s)
- Bradford Dimos
- Department of Biology, University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Madison Emery
- Department of Biology, University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Kelsey Beavers
- Department of Biology, University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Nicholas MacKnight
- Department of Biology, University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Marilyn Brandt
- Center for Marine and Environmental Studies, University of the Virgin Islands, St. Thomas, US Virgin Islands, 00802, USA
| | - Jeffery Demuth
- Department of Biology, University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Laura Mydlarz
- Department of Biology, University of Texas at Arlington, Arlington, TX, 76019, USA
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Karnaneedi S, Huerlimann R, Johnston EB, Nugraha R, Ruethers T, Taki AC, Kamath SD, Wade NM, Jerry DR, Lopata AL. Novel Allergen Discovery through Comprehensive De Novo Transcriptomic Analyses of Five Shrimp Species. Int J Mol Sci 2020; 22:E32. [PMID: 33375120 PMCID: PMC7792927 DOI: 10.3390/ijms22010032] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/10/2020] [Accepted: 12/19/2020] [Indexed: 12/19/2022] Open
Abstract
Shellfish allergy affects 2% of the world's population and persists for life in most patients. The diagnosis of shellfish allergy, in particular shrimp, is challenging due to the similarity of allergenic proteins from other invertebrates. Despite the clinical importance of immunological cross-reactivity among shellfish species and between allergenic invertebrates such as dust mites, the underlying molecular basis is not well understood. Here we mine the complete transcriptome of five frequently consumed shrimp species to identify and compare allergens with all known allergen sources. The transcriptomes were assembled de novo, using Trinity, from raw RNA-Seq data of the whiteleg shrimp (Litopenaeus vannamei), black tiger shrimp (Penaeus monodon), banana shrimp (Fenneropenaeus merguiensis), king shrimp (Melicertus latisulcatus), and endeavour shrimp (Metapenaeus endeavouri). BLAST searching using the two major allergen databases, WHO/IUIS Allergen Nomenclature and AllergenOnline, successfully identified all seven known crustacean allergens. The analyses revealed up to 39 unreported allergens in the different shrimp species, including heat shock protein (HSP), alpha-tubulin, chymotrypsin, cyclophilin, beta-enolase, aldolase A, and glyceraldehyde-3-phosphate dehydrogenase (G3PD). Multiple sequence alignment (Clustal Omega) demonstrated high homology with allergens from other invertebrates including mites and cockroaches. This first transcriptomic analyses of allergens in a major food source provides a valuable resource for investigating shellfish allergens, comparing invertebrate allergens and future development of improved diagnostics for food allergy.
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Affiliation(s)
- Shaymaviswanathan Karnaneedi
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
- ARC Research Hub for Advanced Prawn Breeding, Townsville, QLD 4811, Australia; (R.H.); (N.M.W.)
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
- Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Townsville, QLD 4811, Australia
| | - Roger Huerlimann
- ARC Research Hub for Advanced Prawn Breeding, Townsville, QLD 4811, Australia; (R.H.); (N.M.W.)
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
- Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Townsville, QLD 4811, Australia
| | - Elecia B. Johnston
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - Roni Nugraha
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Department of Aquatic Product Technology, Bogor Agricultural University, Bogor 16680, Indonesia
| | - Thimo Ruethers
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
- Centre for Tropical Bioinformatics and Molecular Biology, James Cook University, Townsville, QLD 4811, Australia
| | - Aya C. Taki
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
| | - Sandip D. Kamath
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
| | - Nicholas M. Wade
- ARC Research Hub for Advanced Prawn Breeding, Townsville, QLD 4811, Australia; (R.H.); (N.M.W.)
- CSIRO Agriculture and Food, Aquaculture Program, 306 Carmody Road, St Lucia, QLD 4067, Australia
| | - Dean R. Jerry
- ARC Research Hub for Advanced Prawn Breeding, Townsville, QLD 4811, Australia; (R.H.); (N.M.W.)
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
- Tropical Futures Institute, James Cook University, 149 Sims Drive, Singapore 387380, Singapore
| | - Andreas L. Lopata
- Molecular Allergy Research Laboratory, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia; (S.K.); (E.B.J.); (R.N.); (T.R.); (A.C.T.); (S.D.K.)
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD 4811, Australia
- Centre for Food and Allergy Research, Murdoch Children’s Research Institute, The Royal Children’s Hospital, 50 Flemington Road, Parkville, VIC 3052, Australia
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
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