1
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The Impact of Processing and Extraction Methods on the Allergenicity of Targeted Protein Quantification as Well as Bioactive Peptides Derived from Egg. Molecules 2023; 28:molecules28062658. [PMID: 36985630 PMCID: PMC10053729 DOI: 10.3390/molecules28062658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/13/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
This review article discusses advanced extraction methods to enhance the functionality of egg-derived peptides while reducing their allergenicity. While eggs are considered a nutrient-dense food, some proteins can cause allergic reactions in susceptible individuals. Therefore, various methods have been developed to reduce the allergenicity of egg-derived proteins, such as enzymatic hydrolysis, heat treatment, and glycosylation. In addition to reducing allergenicity, advanced extraction methods can enhance the functionality of egg-derived peptides. Techniques such as membrane separation, chromatography, and electrodialysis can isolate and purify specific egg-derived peptides with desired functional properties, improving their bioactivity. Further, enzymatic hydrolysis can also break down polypeptide sequences and produce bioactive peptides with various health benefits. While liquid chromatography is the most commonly used method to obtain individual proteins for developing novel food products, several challenges are associated with optimizing extraction conditions to maximize functionality and allergenicity reduction. The article also highlights the challenges and future perspectives, including optimizing extraction conditions to maximize functionality and allergenicity reduction. The review concludes by highlighting the potential for future research in this area to improve the safety and efficacy of egg-derived peptides more broadly.
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2
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Jiang H, Tang D, Gao X, Lin C, Feng B, Du C, Jin S, Zhu J. Molecular cloning, characterisation and expression analysis of the vitellogenin genes vtgAo1 and vtgC during ovarian development in Chinese hook snout carp Opsariichthys bidens. Reprod Fertil Dev 2021; 33:455-465. [PMID: 33858563 DOI: 10.1071/rd20294] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 02/17/2021] [Indexed: 11/23/2022] Open
Abstract
Vitellogenesis is essential for oocyte maturation. Vitellogenin (Vtg), a yolk precursor protein, plays an important role in oogenesis and vitellogenesis. Chinese hook snout carp Opsariichthys bidens is an economically important freshwater fish in China whose reproductive and developmental biology are not well understood. In this study, we undertook histological analysis to examine ovary development and oogenesis in O. bidens. The ovaries were divided into Stages II-V and oocytes were divided into perinuclear oocytes, cortical alveoli oocytes, vitellogenic oocytes and mature oocytes. Full-length cDNA sequences were cloned of two vtg genes from the liver of O. bidens, namely Ob-vtgAo1 and Ob-vtgC. Ob-vtgAo1 and Ob-vtgC cDNA are made up of 4136 and 4392 bases respectively and encode proteins containing 1335 and 1250 amino acids respectively. Ob-vtgAo1 contains three yolk protein domains: lipovitellin heavy chain (LvH), phosvitin (Pv) and lipovitellin light chain (LvL), whereas Ob-VtgC contains LvH and LvL, which are incomplete Vtgs. Ob-vtgAo1 and Ob-vtgC mRNA expression was significantly higher in the liver of O. bidens than in all other tissues. In oocytes of Stage II-III ovaries, yolk granules are almost absent and ovarian and hepatic Ob-vtgAo1 and Ob-vtgC expression is low. At Stage IV, the oocyte is filled with yolk granules and ovarian and hepatic Ob-vtgAo1 and Ob-vtgC expression is significantly increased. Collectively, these findings help us better understand vitellogenesis in O. bidens.
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Affiliation(s)
- Huayu Jiang
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Daojun Tang
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Xinming Gao
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Chenwen Lin
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Binbin Feng
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Chen Du
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Shan Jin
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Junquan Zhu
- Key Laboratory of Applied Marine Biotechnology by the Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, PR China; and Corresponding author.
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3
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Mushirobira Y, Niida M, Hotta T, Fujinami Y, Soyano K. Hepatic expression profiles of three subtypes of vitellogenin and estrogen receptor during vitellogenesis in cultured female yellowtail. Gen Comp Endocrinol 2020; 299:113612. [PMID: 32950579 DOI: 10.1016/j.ygcen.2020.113612] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 09/03/2020] [Accepted: 09/09/2020] [Indexed: 12/23/2022]
Abstract
Estradiol-17β (E2) promotes the transcription of vitellogenin (Vtg) via nuclear estrogen receptor (ER). Three Vtg (VtgAa, VtgAb, and VtgC) and ER subtypes (ERα, ERβ1, and ERβ2) have been reported in perciform fish; however, the relationship between the transcriptional regulation of Vtg and ER subtypes remains unclear. Molecular characterization was performed and the expression profiles of vtg and er subtypes were investigated to elucidate mechanisms of synthesis of vtg subtypes in yellowtail, Seriola quinqueradiata. Primary structures and promoter regions were revealed in three subtypes of vtg and er, and all the vtg subtypes and erα were presumed to be estrogen-responsive genes. When all vtg subtypes were expressed significantly in the liver, hepatic expression levels of all the er subtypes also increased. Conversely, although plasma E2 concentrations did not change significantly, the concentrations were high at the same time. Hepatic expression levels of all the vtg subtypes were highly correlated with hepatic erα, rather than with hepatic erβ subtypes and plasma E2. A high positive correlation was also observed between erβ1 and β2, which seemed to be highly expressed at the pre- and late-vitellogenic stages. The results of the present study suggest that the transcription of the three vtg subtypes are regulated by three ER subtypes jointly, and ERα is the key transcription factor regulating the three vtg subtypes in yellowtail.
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Affiliation(s)
- Yuji Mushirobira
- Institute for East China Sea Research, Organization for Marine Science and Technology, Nagasaki University, 1551-7, Taira-machi, Nagasaki 851-2213, Nagasaki, Japan
| | - Mitsuru Niida
- Institute for East China Sea Research, Organization for Marine Science and Technology, Nagasaki University, 1551-7, Taira-machi, Nagasaki 851-2213, Nagasaki, Japan; Graduate School of Fisheries and Environmental Sciences, Nagasaki University, 1-14, Bunkyo-machi, Nagasaki 852-8521, Nagasaki, Japan
| | - Takurou Hotta
- Goto Station, Seikai National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 122-7 Nunoura, Goto 853-0508, Nagasaki, Japan
| | - Yuichiro Fujinami
- Goto Station, Seikai National Fisheries Research Institute, Japan Fisheries Research and Education Agency, 122-7 Nunoura, Goto 853-0508, Nagasaki, Japan
| | - Kiyoshi Soyano
- Institute for East China Sea Research, Organization for Marine Science and Technology, Nagasaki University, 1551-7, Taira-machi, Nagasaki 851-2213, Nagasaki, Japan.
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4
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Amano H, Kotake A, Hiramatsu N, Fujita T, Todo T, Aoki JY, Soyano K, Kagawa H, Hara A. Development of specific chemiluminescent immunoassays for three subtypes of vitellogenin in grey mullet (Mugil cephalus). Gen Comp Endocrinol 2019; 271:30-38. [PMID: 30408482 DOI: 10.1016/j.ygcen.2018.10.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 10/01/2018] [Accepted: 10/30/2018] [Indexed: 12/20/2022]
Abstract
Chemiluminescent immunoassays (CLIAs) were developed for each of three subtypes of vitellogenin (VtgAa, VtgAb and VtgC) in grey mullet, primarily for use in monitoring estrogenic pollution of the environment. The working range of VtgAa-CLIA and VtgAb-CLIA was from 0.975 to 1,000 ng/ml, while that of VtgC-CLIA was from 0.487 to 1,000 ng/ml. Each CLIA appeared to be specific to the targeted Vtg subtype. Intra- and inter-assay coefficients of variation in the developed CLIAs were lower than 10%. In male serum, VtgAa, VtgAb and VtgC were detected in ranges from 0.01 to 0.38, 0.02 to 1.01, and 0.01 to 3.12 μg/ml, respectively, during various sampling periods. In vitellogenic females (October), serum VtgAb levels (1,192.05 ± 237.81 μg/ml) were significantly higher than levels of the other two Vtg subtypes (120.82 ± 30.42 and 119.23 ± 16.95 μg/ml for VtgAa and VtgC, respectively). When immature mullet were fed diets containing 17α-ethinylestradiol (EE2) at three different doses (0.4, 40 and 4,000 ng/g body weight), all Vtg subtypes were induced by 40 ng/g and 4,000 ng/g EE2. The VtgC (610.30 ± 150.18 μg/ml) was most highly expressed among the three Vtgs in fish fed 40 ng/g EE2, while VtgAb (33.25 ± 13.58 mg/ml) was highest in expression in fish fed 4,000 ng/g EE2. The present study provided practical subtype-specific Vtg assays for the first time in grey mullet, providing the necessary means to evaluate estrogenic activities in aquatic environments.
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Affiliation(s)
- Haruna Amano
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan; School of Marine Biosciences, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan.
| | - Akihiro Kotake
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan
| | - Naoshi Hiramatsu
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan
| | - Toshiaki Fujita
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan; Faculty of Engineering, Hachinohe Institute of Technology, Hachinohe, Aomori 031-8501, Japan
| | - Takashi Todo
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan
| | - Jun-Ya Aoki
- Institute for East China Sea Research, Nagasaki University, Nagasaki, Nagasaki 851-2213, Japan
| | - Kiyoshi Soyano
- Institute for East China Sea Research, Nagasaki University, Nagasaki, Nagasaki 851-2213, Japan
| | - Hirohiko Kagawa
- Faculty of Agriculture, University of Miyazaki, Miyazaki, Miyazaki 889-2192, Japan
| | - Akihiko Hara
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan
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Xue R, Wang X, Xu S, Liu Y, Feng C, Zhao C, Liu Q, Li J. Expression profile and localization of vitellogenin mRNA and protein during ovarian development in turbot (Scophthalmus maximus). Comp Biochem Physiol B Biochem Mol Biol 2018; 226:53-63. [DOI: 10.1016/j.cbpb.2018.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 07/24/2018] [Accepted: 08/06/2018] [Indexed: 12/17/2022]
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Oogenesis and Egg Quality in Finfish: Yolk Formation and Other Factors Influencing Female Fertility. FISHES 2018. [DOI: 10.3390/fishes3040045] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Egg quality in fishes has been a topic of research in aquaculture and fisheries for decades as it represents an important life history trait and is critical for captive propagation and successful recruitment. A major factor influencing egg quality is proper yolk formation, as most fishes are oviparous and the developing offspring are entirely dependent on stored egg yolk for nutritional sustenance. These maternally derived nutrients consist of proteins, carbohydrates, lipids, vitamins, minerals, and ions that are transported from the liver to the ovary by lipoprotein particles including vitellogenins. The yolk composition may be influenced by broodstock diet, husbandry, and other intrinsic and extrinsic conditions. In addition, a number of other maternal factors that may influence egg quality also are stored in eggs, such as gene transcripts, that direct early embryonic development. Dysfunctional regulation of gene or protein expression may lead to poor quality eggs and failure to thrive within hours of fertilization. These gene transcripts may provide important markers as their expression levels may be used to screen broodstock for potential spawning success. In addition to such intrinsic factors, stress may lead to ovarian atresia or reproductive failure and can impact fish behavior, fecundity, and ovulation rate. Finally, postovulatory aging may occur when eggs become overripe and the fish fails to spawn in a timely fashion, leading to low fertility, often encountered during manual strip spawning of fish.
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7
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Andersen Ø, Xu C, Timmerhaus G, Kirste KH, Naeve I, Mommens M, Tveiten H. Resolving the complexity of vitellogenins and their receptors in the tetraploid Atlantic salmon (Salmo salar
): Ancient origin of the phosvitin-less VtgC in chondrichthyean fishes. Mol Reprod Dev 2017; 84:1191-1202. [DOI: 10.1002/mrd.22881] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 08/26/2017] [Indexed: 01/19/2023]
Affiliation(s)
- Øivind Andersen
- Nofima AS; Ås Norway
- Department of Animal and Aquaculture Sciences; Norwegian University of Life Sciences; Ås Norway
| | - Chunxia Xu
- Department of Animal and Aquaculture Sciences; Norwegian University of Life Sciences; Ås Norway
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8
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Binsi PK, Viji P, Panda SK, Mathew S, Zynudheen AA, Ravishankar CN. Characterisation of hydrolysates prepared from engraved catfish (Nemapteryx caelata) roe by serial hydrolysis. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2016; 53:158-70. [PMID: 26787939 PMCID: PMC4711433 DOI: 10.1007/s13197-015-1998-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/03/2015] [Accepted: 08/07/2015] [Indexed: 11/25/2022]
Abstract
Protein hydrolysates were prepared from defatted engraved catfish roe using alcalase enzyme by a two-stage serial hydrolysis process. The soluble hydrolysate formed after first stage of hydrolysis was removed (RH-1) and fresh enzyme was added at the same concentration to achieve further hydrolysis (RH-2). Further, compositional, surface-active and antioxidant properties of both hydrolysates were compared. The SDS-PAGE profile showed two distinct bands for RH-1, whereas no bands were visible for RH-2. On the other hand, gel filtration chromatography of the hydrolysates indicated 3-4 distinct fractions. Both the hydrolysates showed similar foam forming abilities, however, RH-1 exhibited poor foam stability. Emulsion properties of RH-1 were superior to that of RH-2. The major fractions eluted through gel filtration column were screened for antioxidant properties. Higher DPPH radical scavenging and metal chelating properties were observed for RH-1 second fragment, whereas FRAP and Fe(2+) reducing power was highest for second fragment of RH-2.
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Affiliation(s)
- P. K. Binsi
- />Mumbai Research Centre of Central Institute of Fisheries Technology, Vashi, Navi Mumbai 400 703 India
| | - P. Viji
- />Mumbai Research Centre of Central Institute of Fisheries Technology, Vashi, Navi Mumbai 400 703 India
| | - Satyen Kumar Panda
- />Central Institute of Fisheries Technology, Matsyapuri, Willington Island, Cochin 682 029 India
| | - Suseela Mathew
- />Central Institute of Fisheries Technology, Matsyapuri, Willington Island, Cochin 682 029 India
| | - A. A. Zynudheen
- />Central Institute of Fisheries Technology, Matsyapuri, Willington Island, Cochin 682 029 India
| | - C. N. Ravishankar
- />Central Institute of Fisheries Technology, Matsyapuri, Willington Island, Cochin 682 029 India
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9
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Yilmaz O, Prat F, Ibáñez AJ, Köksoy S, Amano H, Sullivan CV. Multiple vitellogenins and product yolk proteins in European sea bass (Dicentrarchus labrax): Molecular characterization, quantification in plasma, liver and ovary, and maturational proteolysis. Comp Biochem Physiol B Biochem Mol Biol 2015; 194-195:71-86. [PMID: 26643259 DOI: 10.1016/j.cbpb.2015.11.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 11/03/2015] [Accepted: 11/26/2015] [Indexed: 11/30/2022]
Abstract
Three complete vitellogenin (Vtg) polypeptides of European sea bass (Dicentrarchus labrax), an acanthomorph teleost spawning pelagic eggs in seawater, were deduced from cDNA and identified as VtgAa, VtgAb and VtgC based on current Vtg nomenclature and phylogeny. Label free quantitative mass spectrometry verified the presence of the three sea bass Vtgs or their product yolk proteins (YPs) in liver, plasma and ovary of postvitellogenic females. As evidenced by normalized spectral counts, VtgAb-derived protein was 2- to 5-fold more abundant, depending on sample type, than for VtgAa, while VtgC-derived protein was less abundant, albeit only 3-fold lower than for VtgAb in the ovary. Western blotting with Vtg type-specific antisera raised against corresponding gray mullet (Mugil cephalus) lipovitellins (Lvs) detected all three types of sea bass Vtg in the blood plasma of gravid females and/or estrogenized males and showed that all three forms of sea bass Lv undergo limited partial degradation during oocyte maturation. The comparatively high levels of VtgC-derived YPs in fully-grown oocytes and the maturational proteolysis of all three types of Lv differ from what has been reported for other teleosts spawning pelagic eggs in seawater but are similar to recent findings for two species of North American Moronidae, the striped bass (Morone saxatilis) and white perch (Morone americana), which spawn pelagic and demersal eggs, respectively in fresh water. Together with the high Vtg sequence homologies and virtually identical structural features of each type of Vtg between species, these findings indicate that the moronid multiple Vtg systems do not substantially vary with reproductive environment.
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Affiliation(s)
- Ozlem Yilmaz
- Akdeniz University, Fisheries Faculty, Antalya, 07070, Turkey
| | - Francisco Prat
- Instituto de Ciencias Marinas de Andalucía, Consejo Superior de Investigaciones Científicas, Avda. República Saharaui 2, 11510 Puerto Real, Cádiz, Spain
| | - A Jose Ibáñez
- Instituto de Acuicultura de Torre de la Sal, Consejo Superior de Investigaciones Científicas, Torre de la Sal, s/n 12595, Ribera de Cabanes, Castellòn, Spain
| | - Sadi Köksoy
- Central Research and Immunology Laboratories, Akdeniz University, Faculty of Medicine, Antalya, 07070, Turkey
| | - Haruna Amano
- School of Marine Biosciences, Kitasato University, 1-15-1 Kitasato, Minami, Sagamihara, Kanagawa 252-0373, Japan
| | - Craig V Sullivan
- Department of Biology, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC 27695-7617, USA.
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Schilling J, Loziuk PL, Muddiman DC, Daniels HV, Reading BJ. Mechanisms of Egg Yolk Formation and Implications on Early Life History of White Perch (Morone americana). PLoS One 2015; 10:e0143225. [PMID: 26580971 PMCID: PMC4651544 DOI: 10.1371/journal.pone.0143225] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 11/02/2015] [Indexed: 12/23/2022] Open
Abstract
The three white perch (Morone americana) vitellogenins (VtgAa, VtgAb, VtgC) were quantified accurately and precisely in the liver, plasma, and ovary during pre-, early-, mid-, and post-vitellogenic oocyte growth using protein cleavage-isotope dilution mass spectrometry (PC-IDMS). Western blotting generally mirrored the PC-IDMS results. By PC-IDMS, VtgC was quantifiable in pre-vitellogenic ovary tissues and VtgAb was quantifiable in pre-vitellogenic liver tissues however, neither protein was detected by western blotting in these respective tissues at this time point. Immunohistochemistry indicated that VtgC was present within pre-vitellogenic oocytes and localized to lipid droplets within vitellogenic oocytes. Affinity purification coupled to tandem mass spectrometry using highly purified VtgC as a bait protein revealed a single specific interacting protein (Y-box binding protein 2a-like [Ybx2a-like]) that eluted with suramin buffer and confirmed that VtgC does not bind the ovary vitellogenin receptors (LR8 and Lrp13). Western blotting for LR8 and Lrp13 showed that both receptors were expressed during vitellogenesis with LR8 and Lrp13 expression highest in early- and mid-vitellogenesis, respectively. The VtgAa within the ovary peaked during post-vitellogenesis, while VtgAb peaked during early-vitellogenesis in both white perch and the closely related striped bass (M. saxatilis). The VtgC was steadily accumulated by oocytes beginning during pre-vitellogenesis and continued until post-vitellogenesis and its composition varies widely between striped bass and white perch. In striped bass, the VtgC accounted for 26% of the vitellogenin-derived egg yolk, however in the white perch it comprised only 4%. Striped bass larvae have an extended developmental window and these larvae have yolk stores that may enable them to survive in the absence of food for twice as long as white perch after hatch. Thus, the VtgC may play an integral role in providing nutrients to late stage fish larvae prior to the onset of exogenous feeding and its composition in the egg yolk may relate to different early life histories among this diverse group of animals.
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Affiliation(s)
- Justin Schilling
- Department of Applied Ecology, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Philip L. Loziuk
- W. M. Keck FTMS Laboratory for Human Health Research, Department of Chemistry, North Carolina State University, Raleigh, North Carolina, United States of America
| | - David C. Muddiman
- W. M. Keck FTMS Laboratory for Human Health Research, Department of Chemistry, North Carolina State University, Raleigh, North Carolina, United States of America
- Center for Comparative Medicine and Translational Research, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Harry V. Daniels
- Department of Applied Ecology, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Benjamin J. Reading
- Department of Applied Ecology, North Carolina State University, Raleigh, North Carolina, United States of America
- * E-mail:
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11
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Maradonna F, Nozzi V, Dalla Valle L, Traversi I, Gioacchini G, Benato F, Colletti E, Gallo P, Di Marco Pisciottano I, Mita DG, Hardiman G, Mandich A, Carnevali O. A developmental hepatotoxicity study of dietary bisphenol A in Sparus aurata juveniles. Comp Biochem Physiol C Toxicol Pharmacol 2014; 166:1-13. [PMID: 24981242 DOI: 10.1016/j.cbpc.2014.06.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 06/11/2014] [Accepted: 06/17/2014] [Indexed: 02/07/2023]
Abstract
Previous studies in rats have indicated that a diet enriched with Bisphenol A adversely effects metabolism and reproductive success. In rats exposed to BPA by maternal gavage, alteration in the developmental programming, higher obesity rates and reproductive anomalies were induced. Starting with this evidence, the aim of this study was to provide important insights on the effects induced by a BPA enriched diet, on the reproductive physiology and metabolism of juvenile fish, simulating the scenario occurring when wild fish fed on prey contaminated with environmental BPA. Seabream was chosen as model, as it is one of the primary commercial species valued by consumers and these results could provide important findings on adverse effects that could be passed on to humans by eating contaminated fish. A novel method for measuring BPA in the food and water by affinity chromatography was developed. Analysis of signals involved in reproduction uncovered altered levels of vtg and Zp, clearly indicating the estrogenic effect of BPA. Similarly, BPA up-regulated catd and era gene expression. A noteworthy outcome from this study was the full length cloning of two vtg encoding proteins, namely vtgA and vtgB, which are differently modulated by BPA. Cyp1a1 and EROD activity were significantly downregulated, confirming the ability of estrogenic compounds to inhibit the detoxification process. GST activity was unaffected by BPA contamination, while CAT activity was down regulated. These results collectively confirm the estrogenic effect of BPA and provide additional characterization of novel vtg genes in Sparus aurata.
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Affiliation(s)
- Francesca Maradonna
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Valentina Nozzi
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, 60131 Ancona, Italy
| | | | - Ilaria Traversi
- Dipartimento di Scienze della Terra, dell'Ambiente e della Vita, Università di Genova, 16132 Genova, Italy; INBB Consorzio Interuniversitario di Biosistemi e Biostrutture, 00136 Roma, Italy
| | - Giorgia Gioacchini
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, 60131 Ancona, Italy
| | - Francesca Benato
- Dipartimento di Biologia, Università di Padova, 35131 Padova, Italy
| | - Elisa Colletti
- Dipartimento di Biologia, Università di Padova, 35131 Padova, Italy
| | - Pasquale Gallo
- INBB Consorzio Interuniversitario di Biosistemi e Biostrutture, 00136 Roma, Italy; Dipartimento di Chimica, Istituto Zooprofilattico Sperimentale del Mezzogiorno, 80055 Portici (NA), Italy
| | | | - Damiano G Mita
- INBB Consorzio Interuniversitario di Biosistemi e Biostrutture, 00136 Roma, Italy
| | - Gary Hardiman
- Department of Medicine, Medical University of South Carolina, Charleston, SC, USA; Computational Science Research Center Biomedical Informatics Research Center, San Diego State University, San Diego, CA, USA
| | - Alberta Mandich
- Dipartimento di Scienze della Terra, dell'Ambiente e della Vita, Università di Genova, 16132 Genova, Italy; INBB Consorzio Interuniversitario di Biosistemi e Biostrutture, 00136 Roma, Italy
| | - Oliana Carnevali
- Dipartimento di Scienze della Vita e dell'Ambiente, Università Politecnica delle Marche, 60131 Ancona, Italy; INBB Consorzio Interuniversitario di Biosistemi e Biostrutture, 00136 Roma, Italy.
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12
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Kong HJ, Kim JL, Moon JY, Kim WJ, Kim HS, Park JY, Cho HK, An CM. Characterization, expression profile, and promoter analysis of the Rhodeus uyekii vitellogenin Ao1 gene. Int J Mol Sci 2014; 15:18804-18. [PMID: 25329620 PMCID: PMC4227248 DOI: 10.3390/ijms151018804] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 09/24/2014] [Accepted: 10/11/2014] [Indexed: 11/16/2022] Open
Abstract
The fish Vitellogenin (Vg) gene has been applied as a biomarker for exposure to estrogenic compounds in the aquatic environment. In this study, we cloned and characterized Vg cDNA from the Korean rose bitterling Rhodeus uyekii (Ru-Vg). The Ru-Vg cDNA encodes a 1424-amino-acid polypeptide that belongs to the VgAo1 family and contains a putative signal peptide, lipovitellin I, phosvitin, and lipovitellin II, but does not contain the vWFD domain or the C-terminal peptide. The deduced Ru-Vg protein has high amino acid identity (73.97%–32.17%) with fish Vg proteins. Pairwise alignment and phylogenetic analysis revealed that Ru-Vg is most closely related to Acheilognathus yamatsutae Vg. Ru-Vg transcripts were detected using quantitative polymerase chain reaction in all tissues tested, with the highest level of expression observed in the ovary. Ru-Vg mRNA was upregulated in R. uyekii hepatopancreas cells in response to treatment with 17β-estradiol (E2) or 17α-ethinylestradiol (EE2). Luciferase reporter expression, driven by the 5'-regulatory region of the Ru-Vg gene spanning from −1020 bp to the start codon was induced by the estrogen receptor and was synergistically activated by treatment with E2 or EE2. These results suggest that R. uyekii and the Ru-Vg gene may be useful as biomarkers for exposure to E2 or EE2.
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Affiliation(s)
- Hee Jeong Kong
- Biotechnology Research Division, National Fisheries Research and Development Institute, Busan 619-705, Korea.
| | - Ju Lan Kim
- Biotechnology Research Division, National Fisheries Research and Development Institute, Busan 619-705, Korea.
| | - Ji Young Moon
- Biotechnology Research Division, National Fisheries Research and Development Institute, Busan 619-705, Korea.
| | - Woo-Jin Kim
- Biotechnology Research Division, National Fisheries Research and Development Institute, Busan 619-705, Korea.
| | - Hyung Soo Kim
- Biotechnology Research Division, National Fisheries Research and Development Institute, Busan 619-705, Korea.
| | - Jung Youn Park
- Biotechnology Research Division, National Fisheries Research and Development Institute, Busan 619-705, Korea.
| | - Hyun Kook Cho
- Department of Molecular Biology, Pusan National University, Busan 609-735, Korea.
| | - Cheul Min An
- Biotechnology Research Division, National Fisheries Research and Development Institute, Busan 619-705, Korea.
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Ortiz-Zarragoitia M, Bizarro C, Rojo-Bartolomé I, de Cerio OD, Cajaraville MP, Cancio I. Mugilid fish are sentinels of exposure to endocrine disrupting compounds in coastal and estuarine environments. Mar Drugs 2014; 12:4756-82. [PMID: 25222666 PMCID: PMC4178482 DOI: 10.3390/md12094756] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 08/11/2014] [Accepted: 08/27/2014] [Indexed: 01/08/2023] Open
Abstract
Effects on fish reproduction can result from a variety of toxicity mechanisms first operating at the molecular level. Notably, the presence in the environment of some compounds termed endocrine disrupting chemicals (EDCs) can cause adverse effects on reproduction by interfering with the endocrine system. In some cases, exposure to EDCs leads to the animal feminization and male fish may develop oocytes in testis (intersex condition). Mugilid fish are well suited sentinel organisms to study the effects of reproductive EDCs in the monitoring of estuarine/marine environments. Up-regulation of aromatases and vitellogenins in males and juveniles and the presence of intersex individuals have been described in a wide array of mullet species worldwide. There is a need to develop new molecular markers to identify early feminization responses and intersex condition in fish populations, studying mechanisms that regulate gonad differentiation under exposure to xenoestrogens. Interestingly, an electrophoresis of gonad RNA, shows a strong expression of 5S rRNA in oocytes, indicating the potential of 5S rRNA and its regulating proteins to become useful molecular makers of oocyte presence in testis. Therefore, the use of these oocyte markers to sex and identify intersex mullets could constitute powerful molecular biomarkers to assess xenoestrogenicity in field conditions.
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Affiliation(s)
- Maren Ortiz-Zarragoitia
- Research Centre for Experimental Marine Biology and Biotechnology, Plentzia Marine Station (PIE-UPV/EHU) and Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), E-48080 Bilbao PO Box 644, Basque Country, Spain.
| | - Cristina Bizarro
- Research Centre for Experimental Marine Biology and Biotechnology, Plentzia Marine Station (PIE-UPV/EHU) and Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), E-48080 Bilbao PO Box 644, Basque Country, Spain.
| | - Iratxe Rojo-Bartolomé
- Research Centre for Experimental Marine Biology and Biotechnology, Plentzia Marine Station (PIE-UPV/EHU) and Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), E-48080 Bilbao PO Box 644, Basque Country, Spain.
| | - Oihane Diaz de Cerio
- Research Centre for Experimental Marine Biology and Biotechnology, Plentzia Marine Station (PIE-UPV/EHU) and Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), E-48080 Bilbao PO Box 644, Basque Country, Spain.
| | - Miren P Cajaraville
- Research Centre for Experimental Marine Biology and Biotechnology, Plentzia Marine Station (PIE-UPV/EHU) and Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), E-48080 Bilbao PO Box 644, Basque Country, Spain.
| | - Ibon Cancio
- Research Centre for Experimental Marine Biology and Biotechnology, Plentzia Marine Station (PIE-UPV/EHU) and Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), E-48080 Bilbao PO Box 644, Basque Country, Spain.
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Quagio-Grassiotto I, Wildner DD, Guimarães-Bassoli ACD. A cytochemical approach to describe oocyte development in the freshwater ostariophysan, Serrasalmus maculatus (Characiformes). Micron 2014; 60:18-28. [DOI: 10.1016/j.micron.2014.01.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 12/17/2013] [Accepted: 01/05/2014] [Indexed: 12/15/2022]
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15
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Nishimiya O, Kunihiro Y, Hiramatsu N, Inagawa H, Todo T, Hara A. Biochemical and immunochemical characterization of two discrete vitellogenin proteins and their derived lipovitellins in the inshore hagfish (Eptatretus burgeri). Zoolog Sci 2014; 31:251-7. [PMID: 24694228 DOI: 10.2108/zs130234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Vitellogenesis has been extensively studied in oviparous vertebrates, including teleost fishes, while not much is known with regard to jawless hagfishes, modern representatives of the most primitive vertebrate class. This study aimed to characterize vitellogenin (Vtg) and yolk protein (YP) in the inshore hagfish (Eptatretus burgeri) as an initial step to understand vitellogenesis in this species. A putative Vtg fraction was purified from the serum of female hagfish by combinations of hydroxylapatite and ion-exchange chromatography, followed by gel filtration. The purified fraction appeared to contain two distinct Vtgs (Vtg1 and Vtg2) and exhibited biochemical properties resembling those previously reported for teleost Vtgs; these appeared to be female-specific serum proteins and high-molecular-weight proteins in gel filtration (˜505 kDa as the mixture fraction of both Vtgs) and in SDS-PAGE (Vtg1 and Vtg2; ˜210 kDa and ˜195 kDa, respectively). A major YP was also purified from hagfish eggs by combinations of hydroxylapatite chromatography and gel filtration; the apparent native mass of the purified YP was unusually large (> 669 kDa). The purified YP consisted of four polypeptides in SDS-PAGE; the peptide pattern indicated that it consisted of two lipovitellins (Lv1 and Lv2) giving rise to two sets of heavy chains (˜116 kDa and ˜106 kDa, respectively) and two light chains (˜32 kDa and ˜28 kDa, respectively). Additional immunological analysis, Nterminal amino acid sequencing and cDNA cloning firmly confirmed the precursor-product relationship between hagfish Vtgs and Lvs.
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Affiliation(s)
- Osamu Nishimiya
- 1 Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan
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16
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Wu M, Nishimiya O, Nakamori M, Soyano K, Todo T, Hara A, Hiramatsu N. Molecular Cloning and Characterization of the Expression Profiles of Vitellogenin Transcripts in the Dojo Loach (Misgurnus anguillicaudatus) in Response to 17α-Ethinylestradiol and 17β-Estradiol Administration. Zoolog Sci 2014; 31:202-12. [DOI: 10.2108/zs130223] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Williams VN, Reading BJ, Amano H, Hiramatsu N, Schilling J, Salger SA, Islam Williams T, Gross K, Sullivan CV. Proportional accumulation of yolk proteins derived from multiple vitellogenins is precisely regulated during vitellogenesis in striped bass (Morone saxatilis). ACTA ACUST UNITED AC 2014; 321:301-15. [DOI: 10.1002/jez.1859] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 02/07/2014] [Accepted: 02/20/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Valerie N. Williams
- Department of Applied Ecology; College of Agriculture and Life Sciences of North Carolina State University; Raleigh North Carolina
| | - Benjamin J. Reading
- Department of Applied Ecology; College of Agriculture and Life Sciences of North Carolina State University; Raleigh North Carolina
| | - Haruna Amano
- Graduate School of Fisheries Sciences; Hokkaido University; Hakodate Hokkaido Japan
| | - Naoshi Hiramatsu
- Graduate School of Fisheries Sciences; Hokkaido University; Hakodate Hokkaido Japan
| | - Justin Schilling
- Department of Applied Ecology; College of Agriculture and Life Sciences of North Carolina State University; Raleigh North Carolina
| | - Scott A. Salger
- Department of Applied Ecology; College of Agriculture and Life Sciences of North Carolina State University; Raleigh North Carolina
| | - Taufika Islam Williams
- Mass Spectrometry Laboratory; College of Agriculture and Life Sciences of North Carolina State University; Raleigh North Carolina
| | - Kevin Gross
- Department of Statistics; North Carolina State University; Raleigh North Carolina
| | - Craig V. Sullivan
- Department of Applied Ecology; College of Agriculture and Life Sciences of North Carolina State University; Raleigh North Carolina
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18
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Mizuta H, Luo W, Ito Y, Mushirobira Y, Todo T, Hara A, Reading BJ, Sullivan CV, Hiramatsu N. Ovarian expression and localization of a vitellogenin receptor with eight ligand binding repeats in the cutthroat trout (Oncorhynchus clarki). Comp Biochem Physiol B Biochem Mol Biol 2013; 166:81-90. [PMID: 23872140 DOI: 10.1016/j.cbpb.2013.07.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 07/12/2013] [Accepted: 07/12/2013] [Indexed: 10/26/2022]
Abstract
A cDNA encoding a vitellogenin receptor with 8 ligand binding repeats (vtgr) was cloned from ovaries of the cutthroat trout, Oncorhynchus clarki. In situ hybridization and quantitative PCR analyses revealed that the main site of vtgr mRNA expression was the oocytes. Expression was strongly detected in perinucleous stage oocytes, gradually decreased as oocytes grew, and became hardly detectable in vitellogenic oocytes. A rabbit antibody (a-Vtgr) was raised against a recombinant Vtgr protein in order to immunologically detect and localize Vtgr within the ovarian follicles. Western blotting using a-Vtgr detected a bold band with an apparent mass of ~95-105kDa in an ovarian preparation that also bound Sakhalin taimen, Hucho perryi, vitellogenin in ligand blots. Immunohistochemistry using a-Vtgr revealed that the Vtgr was uniformly distributed throughout the ooplasm of perinucleolus stage oocytes, subsequently translocated to the periphery of lipid droplet stage oocytes, and became localized to the oolemma during vitellogenesis. We provide the first characterization of Vtgr at both the transcriptional and the translational levels in the cutthroat trout, and our results suggest that this receptor is involved in uptake of Vtg by oocytes of this species.
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Affiliation(s)
- Hiroko Mizuta
- Division of Marine Life Science, Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido, 041-8611, Japan
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19
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Yamane K, Yagai T, Nishimiya O, Sugawara R, Amano H, Fujita T, Hiramatsu N, Todo T, Matsubara T, Hara A. Characterization of vitellogenin and its derived yolk proteins in cloudy catshark (Scyliorhinus torazame). FISH PHYSIOLOGY AND BIOCHEMISTRY 2013; 39:373-390. [PMID: 22918791 DOI: 10.1007/s10695-012-9706-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Accepted: 08/09/2012] [Indexed: 06/01/2023]
Abstract
Elasmobranchs (sharks and rays) exhibit unique reproductive characteristics and, in contrast to the situation in teleosts, very little is known about the identity, structure and physical characteristics of their egg yolk proteins. The aims of this study were to (1) detect and purify the vitellogenin (Vtg; egg yolk precursor) and yolk proteins (YPs) of the cloudy catshark (Scyliorhinus torazame), (2) examine the relationships between Vtg and YPs and (3) characterize and classify the deduced primary structure of the Vtg transcript (vtg). The apparent molecular weights of purified Vtg and putative Vtg-related YPs (lipovitellin: Lv, phosvitin: Pv) were determined by gel filtration and were ~560, >669 and ~58 kDa, respectively. Following SDS-PAGE, these purified products (i.e., Vtg, Lv and Pv) appeared as bands of ~210, ~110 and ~22 kDa, respectively. On Western blots, antisera against purified Vtg, Lv and Pv recognized the ~210 kDa Vtg band. Catshark Pv, in contrast to teleost Pvs, had a very low serine content. The catshark Vtg cDNA sequence (vtg) appeared to contain an open-reading frame consisting of domains encoding Lv, Pv and β'-component (β'-c). A phylogenetic analysis, with a consideration of genome duplication events, placed catshark vtg into the 'vtgAB type.' It is concluded that at least a single major type of Vtg protein, which is transcribed and translated from catshark vtgAB gene, is the precursor of three egg yolk proteins (Lv, Pv and β'-c) in catshark.
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Affiliation(s)
- Kodai Yamane
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan
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20
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Liang Y, Fang Z. Molecular cloning and mRNA expression of the vitellogenin and nuclear receptor gene induced by 17β-estradiol in the mud carp, Cirrhinus molitorella. ECOTOXICOLOGY (LONDON, ENGLAND) 2012; 21:719-729. [PMID: 22193541 DOI: 10.1007/s10646-011-0831-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/11/2011] [Indexed: 05/31/2023]
Abstract
Vitellogenins (VTGs), the precursors of yolk proteins, are crucial for the embryonic development of teleosts, and have also been studied extensively as biomarkers for environmental estrogenic mimics. The cDNA of a VTG was isolated from the liver of male mud carp (Cirrhinus molitorella) following induction by 17β-estradiol (E(2)) using 3'- and 5'-RACE methods. It was 4,216 bp in length, and encoded a putative protein of 1,342 amino acids. This putative VTG contained complete portions of lipovitellin I (LVI) and phosvitin, but lacked the C-terminal half of LVII and was thus classed as a type I vitellogenin. In addition, the partial cDNA of estrogen receptors (ERα and ERβ) and androgen receptors (AR) were cloned. The mRNA expression of VTG, ERα, ERβ and AR were examined in the liver of juvenile mud carp exposed to E(2) (0, 5, 50 and 500 ng/l) in the water for 2, 4, 6 and 8 days. Quantitative reverse transcription PCR (RT-PCR) revealed a significant increase in transcript levels of VTG and ERα but not of ERβ and AR. VTG and ERα were expressed in a time-dose-dependent manner. Our results imply that ERα may be the principal subtype that regulates VTG, and that VTG mRNA of mud carp is an ideal biomarker to detect environmental estrogens.
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Affiliation(s)
- Yue Liang
- Key Laboratory of Ecology and Environmental Science in Guangdong Higher Education, College of Life Science, South China Normal University, Guangzhou 510631, China
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21
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Samaee SM, Estévez A. Evidence for the fragmentation of VtgAb LvH in common dentex (Dentex dentex), a marine pelagophil teleost. Theriogenology 2011; 76:110-4. [PMID: 21458053 DOI: 10.1016/j.theriogenology.2011.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Revised: 01/17/2011] [Accepted: 01/17/2011] [Indexed: 11/18/2022]
Abstract
Since the timing of the lipovitellin heavy chain (LvH) of vitellogenin Ab (VtgAb) degradation during marine teleosts ontogeny is poorly understood, the current study was planned to address some aspects of this shortcoming. Fertilized eggs (before epiboly) of Dentex dentex were analysed. Vtg-derived proteins, that appeared as 6 protein bands after SDS-PAGE, were purified using specific ion exchange chromatography. Five bands (i.e., ∼78, ∼57, ∼22, ∼19, and ∼17 kDa) were merely stained with Coomassie Blue and one band (i.e., ∼16 kDa) only with Periodic Acid Schiff (PAS). The ∼16 kDa protein band was subjected to a mass spectrometry-based sequencing. These results showed that the ∼16 kDa protein band contains a mixture of "LvH-Ab" derivatives with the same molecular weight. The specific staining system (i.e., PAS) also revealed the glycosylation of some of the LvH-Ab fragments inside the ∼16 kDa protein band. The study provides new data about fragmentation of the LvH-Ab in marine pelagophil teleosts.
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Affiliation(s)
- S-M Samaee
- Department of Organismic Biology, Faculty of Natural Sciences, University of Salzburg, Salzburg, Austria.
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22
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Purification and characterization identification of lipovitellin from Pelteobagrus vachelli and preparation of anti-serum. ACTA ACUST UNITED AC 2010. [DOI: 10.3724/sp.j.1231.2010.06428] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Kim HR, Park YJ, Kim JG, Chung KH, Oh SM. Molecular cloning of vitellogenin gene and mRNA expression by 17alpha-ethinylestradiol from slender bitterling. Gen Comp Endocrinol 2010; 168:484-95. [PMID: 20600042 DOI: 10.1016/j.ygcen.2010.06.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Revised: 05/14/2010] [Accepted: 06/19/2010] [Indexed: 01/18/2023]
Abstract
Indigenous aquatic population such as fish could be used as a successful test species for evaluating the ecological effects in aquatic environment. In the present study, vitellogenin (Vtg) from slender bitterling (Acheilognathus yamatsutae), an indigenous aquatic species in Korea, was cloned and sequenced to determine if the Vtg gene possesses an important characteristic so as to act as a sensitive biomarker for estrogenic endocrine disrupting chemicals (EEDCs). The sbVtg cDNA is 5010 bp in length, containing a 4653 bp open reading frame, which encodes 1550 amino acid residues. The sbVtg cDNA was divided into lipovitellin heavy chain (LvH), phosvitin (Pv), lipovitellin light chain (LvL) as well as a beta'-component (beta'-c) domain, and belongs to VtgAo2. SbVtg has conserved important sequences for Vtg functions such as signal peptide, VtgR-binding region, and disulfide bond formation, all of which are consistent with those of other teleosts. In addition, the male slender bitterling aqueous exposed to 17 alpha-ethinylestradiol (EE2, 12.5, 25, and 50 ng/L) produced a statistically significant and concentration-dependent increase in hepatic Vtg mRNA expression, which showed a similar pattern to biliary estrogenic activity, measured by ERE-reporter gene assay. Thus, this study clearly indicates that the induction of Vtg in slender bitterling might be a suitable biomarker in toxicological research of EEDCs.
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Affiliation(s)
- Ha Ryong Kim
- School of Pharmacy, Sungkyunkwan University, #300 Cheoncheondong, Jangan-Gu, Suwon, Gyeonggi-do 440-746, South Korea
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24
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Amano H, Mochizuki M, Fujita T, Hiramatsu N, Todo T, Hara A. Purification and characterization of a novel incomplete-type vitellogenin protein (VgC) in Sakhalin taimen (Hucho perryi). Comp Biochem Physiol A Mol Integr Physiol 2010; 157:41-8. [DOI: 10.1016/j.cbpa.2010.05.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Revised: 05/06/2010] [Accepted: 05/07/2010] [Indexed: 10/19/2022]
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25
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Amano H, Fujita T, Hiramatsu N, Todo T, Hara A. Purification and classification of three lipovitellin subtypes in the marbled sole (Pleuronectes yokohamae). Zoolog Sci 2009; 26:510-6. [PMID: 19663647 DOI: 10.2108/zsj.26.510] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An immunologlcal analysis using subtype-specific antisera of the major yolk protein lipovltellin (Lv) of the grey mullet (Mugil cephalus) confirmed the presence of the three corresponding Lv subtypes (LvA, LvB, and LvC) in vitellogenic ovaries of the marbled sole (Pleuronectes yokohamae). These three Lv subtypes were purified from sole ovaries by using various combinations of anion exchange, hydroxylapatite, immunoadsorbent, and gel-filtration chromatography. Purified LvA, LvB, and LvC had an apparent native mass of approximately 482, approximately 380, and approximately 372 kDa, respectively, estimated by gel filtration. Analysis of their tertiary structures by SDS-PAGE indicated that LvA, LvB, and LvC were typical of teleost Lvs in having a heavy (H) chain (approximately 105, approximately 102, and approximately 107 kDa, respectively) and a light (L) chain (approximately 22, approximately 19.5, and approximately 25 kDa, respectively). The N-termlnal amino acid (AA) sequences were obtained for the LvA H chain, the LvB H and L chains, and the LvC L chain and compared to the deduced AA sequences of their precursors, vitellogenins (Vgs), in several species. This comparison of LvA, LvB, and LvC with various teleost VgA, VgB, and VgC sequences, respectively, revealed high identities (60-100%). The purified Lv subtypes were subjected to double immunodiffusion using an antiserum against an unclassified Lv of the sole ( Hashimoto et al., 1998 ); only the LvB subtype exhibited immunoreactivity with this antiserum. This result indicates that the previously developed immunoassay using this anti-Lv for the detection of sole Vg is effectively a VgB-specific assay.
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Affiliation(s)
- Haruna Amano
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan
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26
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Samaee SM, Lahnsteiner F, Giménez G, Estévez A, Sarg B, Lindner H. Quantitative composition of vitellogenin-derived yolk proteins and their effects on viability of embryos and larvae of common dentex (Dentex dentex), a marine pelagophil teleost. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/jez.549] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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27
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Reading BJ, Hiramatsu N, Sawaguchi S, Matsubara T, Hara A, Lively MO, Sullivan CV. Conserved and variant molecular and functional features of multiple egg yolk precursor proteins (vitellogenins) in white perch (Morone americana) and other teleosts. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2009; 11:169-187. [PMID: 18766402 DOI: 10.1007/s10126-008-9133-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Revised: 07/07/2008] [Accepted: 07/11/2008] [Indexed: 05/26/2023]
Abstract
Three complete cDNAs encoding different forms of vitellogenin (Vtg) were isolated from a white perch (Morone americana) liver cDNA library and characterized with respect to immunobiochemical and functional features of the three Vtgs and their product yolk proteins (YPs) in this species and in the congeneric striped bass (Morone saxatilis). The two longest cDNAs encoded Vtgs with a complete suite of yolk protein domains that, based on comparisons with vtg sequences from other species, were categorized as VtgAa and VtgAb using the current nomenclature for multiple teleost Vtgs. The shorter cDNA encoded a Vtg that lacked a phosvitin domain, had a shortened C-terminus, and was categorized as VtgC. Mapping of peptide sequences from the purified Vtgs and their derived YPs to Vtg sequences deduced from the cDNAs definitively identified the white perch VtgAa, VtgAb, and VtgC proteins. Detailed comparisons of the primary structures of each Vtg with partial or complete sequences of Morone yolk proteins or of Vtgs from other fishes revealed conserved and variant structural elements of teleost Vtgs with functional significance, including, as examples, signal peptide cleavage sites, dimerization sites, cathepsin D protease recognition sites, and receptor-binding domains. These comparisons also yielded an interim revision of the classification scheme for multiple teleost Vtgs.
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Affiliation(s)
- Benjamin J Reading
- Department of Zoology, North Carolina State University, Raleigh, NC 27695-7617, USA
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28
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Hong L, Fujita T, Wada T, Amano H, Hiramatsu N, Zhang X, Todo T, Hara A. Choriogenin and vitellogenin in red lip mullet (Chelon haematocheilus): purification, characterization, and evaluation as potential biomarkers for detecting estrogenic activity. Comp Biochem Physiol C Toxicol Pharmacol 2009; 149:9-17. [PMID: 18585478 DOI: 10.1016/j.cbpc.2008.05.017] [Citation(s) in RCA: 188] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2008] [Revised: 05/20/2008] [Accepted: 05/21/2008] [Indexed: 11/17/2022]
Abstract
Two vitelline envelope precursors (choriogenin H: Chg H; choriogenin L: Chg L) and an egg yolk precursor (vitellogenin B: VgB) were purified from red lip mullet. The mass of intact Chg H and Chg L were estimated to be approximately 215 kDa and approximately 69 kDa, respectively. In SDS-PAGE, Chg H and Chg L separated to positions corresponding to approximately 51 kDa and approximately 44 kDa, respectively. The mass of intact VgB was approximately 530 kDa and resolved into a polypeptide of approximately 185 kDa in SDS-PAGE. Specific antisera were raised against each purified protein and specific immunoassays were developed. When Chg H, Chg L and VgB were induced in the serum of immature mullet by injection with various doses of estradiol-17beta (E(2)), VgB exhibited the most sensitive response exhibiting high variation in its induced levels. The variation in induced levels of Chg H and L was relatively minimal although induction required higher doses of E(2) than with VgB. Serum samples obtained from immature mullet populations collected from their natural habitat exhibited similar profiles in the levels of these proteins. The present study suggests that the utilization of multiple biomarkers holds great importance for the reliable and accurate evaluation of estrogenic activity in aquatic environments.
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Affiliation(s)
- Lei Hong
- Division of Marine Biosciences, Faculty of Fisheries, Hokkaido University, Minato, Hakodate, Japan
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Barra A, Garau VL, Dessi S, Sarais G, Cereti E, Arlorio M, Coisson JD, Cabras P. Chemical characterization and DNA tracking of Sardinian botargo by Mugil cephalus from different geographical origins. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:10847-10852. [PMID: 18942834 DOI: 10.1021/jf802363k] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The chemical composition of the Sardinian botargo by Mugil cephalus from different geographical origins was investigated. Fat ( approximately 20%), proteins ( approximately 50%), moisture ( approximately 22%), and salt ( approximately 7%) were measured in ground (G) and whole (W) commercial products. Among the nutritional compounds, omega-3 fatty acids were approximately 8%, squalene was approximately 15 mg/100 g, vitamin E was approximately 8.5 mg/kg, and cholesterol was approximately 300 mg/100 g, on average in both products. Antioxidant properties, assessed by the 1,1-diphenyl-2-picryl-hydrazyl (DPPH) test and expressed as Trolox equivalent antioxidant capacity (TEAC), showed quite good activity in extracted oil (0.8-1.1 mmol of Tolox/L). Major constituents in the samples varied noticeably, but only few statistical differences were evidenced between G or W products or between samples from different origins. Principal component analysis (PCA) of random amplified polymorphic DNA (RAPD) and proteins, coupled with both, did not differentiate samples from different origins. On the basis of our results, chemical and molecular data exclude the differentiation of samples from diverse origins.
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Affiliation(s)
- Andrea Barra
- Department of Toxicology, University of Cagliari, Cagliari, Italy.
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Kolarevic J, Nerland A, Nilsen F, Finn RN. Goldsinny wrasse (Ctenolabrus rupestris) is an extreme vtgAa-type pelagophil teleost. Mol Reprod Dev 2008; 75:1011-20. [PMID: 18163443 DOI: 10.1002/mrd.20845] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
During oocyte maturation in the goldsinny wrasse (Ctenolabrus rupestris) extensive proteolysis of yolk proteins generates a large pool of free amino acids that drive hydration of the pelagic egg. By cloning hepatic vitellogenins (vtg) and using mass spectrometry, N-terminal microsequencing, and Western-immunoblotting to identify the yolk proteins (Yp), we show that multiple forms of vitellogenin mRNAs (vtgAa, vtgAb, and vtgC) are expressed in the liver, but only a single major class of the Yps derived from vtgAa predominates in the oocytes. Some Yps derived from vtgAb and vtgC appear also to be incorporated in the oocytes and eggs, but only at background levels. During oocyte hydration the vtgAa-derived lipovitellin heavy chain (LvH-Aa) and its cleavage variants are completely degraded leaving only a processed lipovitellin light chain (LvL-Aa) fragment as the major yolk protein for embryonic development. The maturational cleavage site of the LvL-Aa is identified as two amino acids downstream from the conserved Tyr(1168) of VtgAa in Atlantic halibut. In addition, although a beta'-component (approximately 18 kDa) is present in the oocytes, it is not fully degraded during the hydration process.
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Affiliation(s)
- Jelena Kolarevic
- Department of Biology, University of Bergen, Allégaten, Bergen, Norway.
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Song M, Lv X, Wang H, Jiang G. Fast purification of trace vitellogenin from Chinese rare minnow using protein A-immobilized antibody. Anal Bioanal Chem 2008; 390:2151-7. [DOI: 10.1007/s00216-008-1971-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2008] [Revised: 01/30/2008] [Accepted: 02/11/2008] [Indexed: 10/22/2022]
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Amano H, Fujita T, Hiramatsu N, Kagawa H, Matsubara T, Sullivan CV, Hara A. Multiple vitellogenin-derived yolk proteins in gray mullet (Mugil cephalus): Disparate proteolytic patterns associated with ovarian follicle maturation. Mol Reprod Dev 2008; 75:1307-17. [DOI: 10.1002/mrd.20864] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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