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Lan H, Liu F, Lu L, Liu A, Ye H. A new type II CHH neuropeptide involves ovarian development in the peppermint shrimp, Lysmata vittata. PLoS One 2024; 19:e0305127. [PMID: 39088423 PMCID: PMC11293640 DOI: 10.1371/journal.pone.0305127] [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: 03/26/2024] [Accepted: 05/24/2024] [Indexed: 08/03/2024] Open
Abstract
Type II crustacean hyperglycemic hormone (CHH) neuropeptides play diverse roles in crustaceans. In the hermaphrodite shrimp Lysmata vittata, two transcripts of type II CHHs (molt-inhibiting hormone/gonad-inhibiting hormone, MIH/GIH1 and MIH/GIH2) were identified by transcriptome sequencing, and MIH/GIH1 was later named Lvit-GIH1 for its inhibitory effect on ovarian development. Based on the high similarity of MIH/GIH2 to Lvit-GIH1, we named tentatively MIH/GIH2 as Lvit-GIH2 and explored the role of Lvit-GIH2 in ovarian development. The open reading frame (ORF) of Lvit-GIH2 was 333 bp in length, encoding a precursor consisted of a 32-aa signal peptide and a 78-aa mature peptide, which shared high sequence similarity with the type II subfamily peptides in crustaceans. Notably, Lvit-GIH2 was widely expressed in multiple tissues. The qRT-PCR findings indicated a rising trend in the expression of Lvit-GIH2 from the male phase to the euhermaphrodite phase. Both RNA interference and addition of GIH2 recombinant proteins (rGIH2) experiments showed that Lvit-GIH2 suppressed Lvit-Vg expression in hepatopancreas and Lvit-VgR expression in ovary. To further investigate the role of Lvit-GIH2 in ovarian development, the RNA-sequence analysis was performed to examine the changes in ovary after addition of rGIH2. The results showed that the pathways (Cysteine and methionine metabolism, Apoptosis-multiple species, etc.) and the genes (17bHSD8, IGFR, CHH, etc.) related to ovarian development were negatively regulated by rGIH2. In brief, Lvit-GIH2 might inhibit the ovarian development in L. vittata.
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Affiliation(s)
- Huiling Lan
- State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen, China
| | - Fang Liu
- State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen, China
| | - Li Lu
- State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen, China
| | - An Liu
- State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen, China
| | - Haihui Ye
- State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen, China
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2
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Laphyai P, Kruangkum T, Chotwiwatthanakun C, Semchuchot W, Thaijongrak P, Sobhon P, Tsai PS, Vanichviriyakit R. Suppression of a Novel Vitellogenesis-Inhibiting Hormone Significantly Increases Ovarian Vitellogenesis in the Black Tiger Shrimp, Penaeus monodon. Front Endocrinol (Lausanne) 2021; 12:760538. [PMID: 34867802 PMCID: PMC8634883 DOI: 10.3389/fendo.2021.760538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/12/2021] [Indexed: 11/13/2022] Open
Abstract
In this study, a novel Crustacean Hyperglycemic Hormone-type II gene (CHH-type II) was identified and biologically characterized in a shrimp, Penaeus monodon. Based on its structure and function, this gene was named P. monodon vitellogenesis-inhibiting hormone (PemVIH). The complete cDNA sequence of PemVIH consisted of 1,022 nt with an open reading frame (ORF) of 339 nt encoding a polypeptide of 112 amino acids. It was classified as a member of the CHH-type II family based on conserved cysteine residues, a characteristically positioned glycine residue, and the absence of CHH precursor-related peptide (CPRP) domain. The deduced mature PemVIH shared the highest sequence similarities with giant river prawn sinus gland peptide A. Unlike P. monodon gonad-inhibiting hormone (PemGIH), PemVIH was expressed only in the brain and ventral nerve cord, but not the eyestalks. Whole mount immunofluorescence using a newly generated PemVIH antiserum detected positive signals in neuronal cluster 9/11 and 17 of the brain, commissural ganglion (CoG), and neuronal clusters of ventral nerve cord. The presence of PemVIH-positive neurons in CoG, a part of stomatogastric nervous system, suggested a potential mechanism for crosstalk between nutritional and reproductive signaling. The role of PemVIH in vitellogenesis was evaluated using RNA interference technique. Temporal knockdown of PemVIH in female subadults resulted in a 3-fold increase in ovarian vitellogenin expression, suggesting an inhibitory role of PemVIH in vitellogenesis. This study provided novel insight into the control of vitellogenesis and additional strategies for improving ovarian maturation in P. monodon without the current harmful practice of eyestalk ablation.
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Affiliation(s)
- Phaivit Laphyai
- Center of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp), Faculty of Science, Mahidol University, Bangkok, Thailand
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Thanapong Kruangkum
- Center of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp), Faculty of Science, Mahidol University, Bangkok, Thailand
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Charoonroj Chotwiwatthanakun
- Center of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp), Faculty of Science, Mahidol University, Bangkok, Thailand
- Academic and Curriculum Division, Nakhonsawan Campus, Mahidol University, Nakhonsawan, Thailand
| | - Wanita Semchuchot
- Center of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp), Faculty of Science, Mahidol University, Bangkok, Thailand
- Department of Science, Faculty of Science and Technology, Prince of Songkla University, Pattani, Thailand
| | - Prawporn Thaijongrak
- Center of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp), Faculty of Science, Mahidol University, Bangkok, Thailand
- Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, Nakhonpathom, Thailand
| | - Prasert Sobhon
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Pei-San Tsai
- Department of Integrative Physiology, University of Colorado, Boulder, CO, United States
| | - Rapeepun Vanichviriyakit
- Center of Excellence for Shrimp Molecular Biology and Biotechnology (Centex Shrimp), Faculty of Science, Mahidol University, Bangkok, Thailand
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand
- *Correspondence: Rapeepun Vanichviriyakit,
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3
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Chen HY, Toullec JY, Lee CY. The Crustacean Hyperglycemic Hormone Superfamily: Progress Made in the Past Decade. Front Endocrinol (Lausanne) 2020; 11:578958. [PMID: 33117290 PMCID: PMC7560641 DOI: 10.3389/fendo.2020.578958] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/09/2020] [Indexed: 12/11/2022] Open
Abstract
Early studies recognizing the importance of the decapod eyestalk in the endocrine regulation of crustacean physiology-molting, metabolism, reproduction, osmotic balance, etc.-helped found the field of crustacean endocrinology. Characterization of putative factors in the eyestalk using distinct functional bioassays ultimately led to the discovery of a group of structurally related and functionally diverse neuropeptides, crustacean hyperglycemic hormone (CHH), molt-inhibiting hormone (MIH), gonad-inhibiting hormone (GIH) or vitellogenesis-inhibiting hormone (VIH), and mandibular organ-inhibiting hormone (MOIH). These peptides, along with the first insect member (ion transport peptide, ITP), constitute the original arthropod members of the crustacean hyperglycemic hormone (CHH) superfamily. The presence of genes encoding the CHH-superfamily peptides across representative ecdysozoan taxa has been established. The objective of this review is to, aside from providing a general framework, highlight the progress made during the past decade or so. The progress includes the widespread identification of the CHH-superfamily peptides, in particular in non-crustaceans, which has reshaped the phylogenetic profile of the superfamily. Novel functions have been attributed to some of the newly identified members, providing exceptional opportunities for understanding the structure-function relationships of these peptides. Functional studies are challenging, especially for the peptides of crustacean and insect species, where they are widely expressed in various tissues and usually pleiotropic. Progress has been made in deciphering the roles of CHH, ITP, and their alternatively spliced counterparts (CHH-L, ITP-L) in the regulation of metabolism and ionic/osmotic hemostasis under (eco)physiological, developmental, or pathological contexts, and of MIH in the stimulation of ovarian maturation, which implicates it as a regulator for coordinating growth (molt) and reproduction. In addition, experimental elucidation of the steric structure and structure-function relationships have given better understanding of the structural basis of the functional diversification and overlapping among these peptides. Finally, an important finding was the first-ever identification of the receptors for this superfamily of peptides, specifically the receptors for ITPs of the silkworm, which will surely give great impetus to the functional study of these peptides for years to come. Studies regarding recent progress are presented and synthesized, and prospective developments remarked upon.
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Affiliation(s)
- Hsiang-Yin Chen
- Department of Aquaculture, National Penghu University of Science and Technology, Magong, Taiwan
| | - Jean-Yves Toullec
- Sorbonne Université, Faculté des Sciences, CNRS, UMR 7144, Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Roscoff, France
| | - Chi-Ying Lee
- Graduate Program of Biotechnology and Department of Biology, National Changhua University of Education, Changhua, Taiwan
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4
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Shi W, Liu F, Liu A, Huang H, Lin Q, Zeng C, Ye H. Roles of gonad-inhibiting hormone in the protandric simultaneous hermaphrodite peppermint shrimp†. Biol Reprod 2020; 103:817-827. [PMID: 32582944 DOI: 10.1093/biolre/ioaa111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/06/2020] [Accepted: 06/19/2020] [Indexed: 11/14/2022] Open
Abstract
To date, the molecular mechanisms of the unique gonadal development mode known as protandric simultaneous hermaphroditism (PSH) are unclear in crustaceans. In this study, cDNA of a gonad-inhibiting hormone (Lv-GIH1) was isolated from the PSH peppermint shrimp Lysmata vittata, and its expression was exclusively found in the eyestalk ganglion. Real-time quantitative polymerase chain reaction (qRT-PCR) revealed that the expression of Lv-GIH1 increased during gonadal development of the functional male stages but decreased significantly at subsequent simultaneous hermaphroditism stage. Further in vitro experiment showed that recombinant GIH1 protein (rGIH1) effectively inhibited Vg expression in the cultured hepatopancreas tissues while the short-term injection of GIH1-dsRNA resulted in reduced expression of Lv-GIH1 and upregulated expression of Vg in the hepatopancreas. Moreover, long-term rGIH1 injection led to significantly reduced expression of Lv-Vg, Lv-VgR, and Lv-CFSH1, subdued growth of oocytes, and feathery setae as a secondary sexual characteristic in females. Interestingly, while germ cells in testicular part were suppressed by rGIH1 injection, the expression of Lv-IAGs showed no significant difference; and long-term GIH1-dsRNA injection results were contrary to those of rGIH1 injection. Taken together, the results of this study indicate that Lv-GIH1 is involved in gonadal development and might also participate in controlling secondary sexual characteristic development in L. vittata by inhibiting Lv-CFSH1 expression.
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Affiliation(s)
- Wenyuan Shi
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, People's Republic of China
| | - Fang Liu
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, People's Republic of China
| | - An Liu
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, People's Republic of China
| | - Huiyang Huang
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, People's Republic of China
| | - Qi Lin
- Fisheries Research Institute of Fujian, Xiamen, People's Republic of China
| | - Chaoshu Zeng
- College of Science & Engineering, James Cook University, Townsville, Queensland, Australia
| | - Haihui Ye
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, People's Republic of China
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5
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Kluebsoongnoen J, Panyim S, Udomkit A. Regulation of vitellogenin gene expression under the negative modulator, gonad-inhibiting hormone in Penaeus monodon. Comp Biochem Physiol A Mol Integr Physiol 2020; 243:110682. [PMID: 32092399 DOI: 10.1016/j.cbpa.2020.110682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 11/15/2022]
Abstract
Vitellogenesis is a principal process during ovarian maturation in crustaceans. This process is negatively regulated by gonad-inhibiting hormone (GIH), a neuronal peptide hormone from eyestalks. However, the detailed mechanism through which GIH regulates Vg expression is still ambiguous. In this study, suppression subtractive hybridization (SSH) under specific GIH-knockdown condition was utilized to determine the expression of genes in the ovary that may act downstream of GIH to control vitellogenin synthesis in Penaeus monodon. The total of 102 and 82 positive clones of up-regulated and down-regulated genes in GIH- knockdown shrimp were identified from the forward and reverse SSH libraries, respectively. Determination of the expression profiles of these reproduction-related genes during ovarian development revealed that the expression of calreticulin (CALR) was significantly reduced in vitellogenic ovary suggesting its role in vitellogenesis. Suppression of CALR by specific dsRNA showed elevated vitellogenin (Vg) transcript level in the ovary at day 7 post-dsRNA injection. Since CALR can bind to steroid hormone receptors and prevents the binding of the receptor to its responsive element to regulate gene expression, it is possible that CALR is an inhibitory mediator of vitellogenin synthesis via steroidal pathway. Our results posted a possible novel pathway of GIH signaling that might interfere the steroid signaling cascade to mediate Vg synthesis in the shrimp.
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Affiliation(s)
- Jakkapong Kluebsoongnoen
- Institute of Molecular Biosciences, Mahidol University, Salaya Campus, Nakhon Pathom 73170, Thailand
| | - Sakol Panyim
- Institute of Molecular Biosciences, Mahidol University, Salaya Campus, Nakhon Pathom 73170, Thailand; Department of Biochemistry, Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand
| | - Apinunt Udomkit
- Institute of Molecular Biosciences, Mahidol University, Salaya Campus, Nakhon Pathom 73170, Thailand.
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Kornthong N, Duangprom S, Suwansa-Ard S, Saetan J, Phanaksri T, Songkoomkrong S, Kheowkae S, Pollawat J, Sobhon P. Molecular characterization of a vitellogenesis-inhibiting hormone (VIH) in the mud crab (Scylla olivacea) and temporal changes in abundances of VIH mRNA transcripts during ovarian maturation and following neurotransmitter administration. Anim Reprod Sci 2019; 208:106122. [PMID: 31405473 DOI: 10.1016/j.anireprosci.2019.106122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/29/2019] [Accepted: 07/12/2019] [Indexed: 02/03/2023]
Abstract
The vitellogenesis-inhibiting hormone (VIH), also known as gonad-inhibiting hormone, is a neuropeptide hormone in crustaceans that belongs to the crustacean hyperglycemic hormone (CHH)-family peptide. There is regulation vitellogenesis by VIH during gonad maturation in crustaceans. A full-length Scylla olivacea VIH (Scyol-VIH) was identified through reverse transcription polymerase chain reaction and rapid amplification of cDNA ends. The open reading frame consists of 378 nucleotides, which encodes a 126-amino acid precursor protein, including a 22-residue signal peptide and a 103-amino acid mature peptide in which 6 highly conserved cysteine residues are present. There was expression of the Scyol-VIH gene in immature female Scylla olivacea in the eyestalk, brain and ventral nerve cord. The Scyol-VIH gene expression was localized to the eyestalk X-organ, brain neuronal clusters 6 and 11, and in multiple neuronal clusters of the ventral nerve cord. The relative abundance of Scyol-VIH mRNA transcript in the eyestalk was relatively greater in immature stage females, then decreased as ovarian maturation progressed. Furthermore, eyestalk Scyol-VIH increased after dopamine (5 μg/g BW) injection. The present research provides fundamental information about Scyol-VIH and its potential effect in controlling reproduction.
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Affiliation(s)
- Napamanee Kornthong
- Chulabhorn International College of Medicine, Thammasat University, Rangsit campus, Pathumthani, 12121, Thailand.
| | - Supawadee Duangprom
- Chulabhorn International College of Medicine, Thammasat University, Rangsit campus, Pathumthani, 12121, Thailand
| | - Saowaros Suwansa-Ard
- Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore, Queensland, 4558, Australia
| | - Jirawat Saetan
- Department of Anatomy, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Teva Phanaksri
- Chulabhorn International College of Medicine, Thammasat University, Rangsit campus, Pathumthani, 12121, Thailand
| | - Sineenart Songkoomkrong
- Chulabhorn International College of Medicine, Thammasat University, Rangsit campus, Pathumthani, 12121, Thailand
| | - Supawadee Kheowkae
- Chulabhorn International College of Medicine, Thammasat University, Rangsit campus, Pathumthani, 12121, Thailand
| | - Jutaporn Pollawat
- Chulabhorn International College of Medicine, Thammasat University, Rangsit campus, Pathumthani, 12121, Thailand
| | - Prasert Sobhon
- Department of Anatomy, Faculty of Science, Mahidol University, Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand
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7
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Gismondi E. Identification of molt-inhibiting hormone and ecdysteroid receptor cDNA sequences in Gammarus pulex, and variations after endocrine disruptor exposures. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 158:9-17. [PMID: 29656166 DOI: 10.1016/j.ecoenv.2018.04.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/03/2018] [Accepted: 04/06/2018] [Indexed: 06/08/2023]
Abstract
In amphipods, growth, development and reproduction are mediated by the molt, which is a hormonally controlled process and which, therefore, could be impacted by endocrine disruption compounds (EDC). The molt process is controlled by both X-organ (XO) and Y-organ (YO) through a variety of hormones and receptors including the molt-inhibiting hormone (MIH) and the ecdysteroid receptor (EcR). However, although many studies were devoted to characterize MIH and EcR in crustaceans, only few works evaluated their variations under EDCs exposures. Consequently, the present work aimed to characterize MIH and EcR genes of the amphipod Gammarus pulex, as well as to study their relative expression variations after exposure to four EDCs, proved in vertebrates: ethinylestradiol (estrogen), 4-hydroxytamoxifen (anti-estrogen), 17α-methyltestosterone (androgen) and cyproterone acetate (anti-androgen). PCR amplification allowed to obtain 204 bp length and 255 bp length fragments, encoding for partial sequences of 68 amino acids and 85 amino acids, which correspond to EcR and MIH, respectively, and which are highly conserved in crustacean species. Results highlighted MIH and EcR expressions mainly in G. pulex head, which is the localization of XO and YO. Moreover, irrespective of the EDC exposure, increases of MIH and EcR relative expressions were observed, as it was observed after the exposure to 20-hydroxyecdysone (20HE), the natural molt hormone, used as positive control. Therefore, it appeared that tested EDCs behaved like 20HE, suggesting that their effects could occur through the ecdysteroids pathways, and so impact the molt process of G. pulex on the long term. Finally, the present study is a first step in the possibility of using MIH and EcR relative expressions as biomarkers of exposure for EDCs risk assessment. However additional studies must first be carried out to better characterize and understand their variations, and also better predicted consequences for the exposed amphipods.
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Affiliation(s)
- Eric Gismondi
- University of Liège, Laboratory of Animal Ecology and Ecotoxicology (LEAE) - Freshwater and Oceanic Sciences Unit of Research (FOCUS), Chemistry Institute, Bât. B6C, 11 allée du 6 Août, B-4000 Sart-Tilman, Belgium.
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8
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Qiao H, Jiang F, Xiong Y, Jiang S, Fu H, Li F, Zhang W, Sun S, Jin S, Gong Y, Wu Y. Characterization, expression patterns of molt-inhibiting hormone gene of Macrobrachium nipponense and its roles in molting and growth. PLoS One 2018; 13:e0198861. [PMID: 29889902 PMCID: PMC5995357 DOI: 10.1371/journal.pone.0198861] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 05/25/2018] [Indexed: 11/18/2022] Open
Abstract
The oriental river prawn, Macrobrachium nipponense, is an important commercial aquaculture resource in China. In order to overwinter, M. nipponense displays decreased physiological activity and less consumption of energy. Sudden warming would trigger molting and cause an extensive death, resulting in huge economic losses. Therefore, it is of great practical significance to study the molting mechanism of oriental river prawns. Molt-inhibiting hormone gene (MIH) plays a major role in regulating molting in crustaceans. In this study, a full length MIH cDNA of M. nipponense (Mn-MIH) was cloned from the eyestalk. The total length of the Mn-MIH was 925 bp, encoding a protein of 119 amino acids. Tissue distribution analysis showed that Mn-MIH was highly expressed in the eyestalk, and that it had relatively low expression in gill, ovary, and abdominal ganglion. Mn-MIH was detected in all developmental stages, and changed regularly in line with the molting cycle of the embryo and larva. Mn-MIH varied in response to the molting cycle, suggesting that Mn-MIH negatively regulates ecdysteroidogenesis. Mn-MIH inhibition by RNAi resulted in a significant acceleration of molting cycles in both males and females, confirming the inhibitory role of MIH in molting. After long-term RNAi males, but not females had significant weight gain, confirming that Mn-MIH plays an important role in growth of M. nipponense. Our work contributes to a better understanding of the role of Mn-MIH in crustacean molting and growth.
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Affiliation(s)
- Hui Qiao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Fengwei Jiang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Yiwei Xiong
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Sufei Jiang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Hongtuo Fu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Fei Li
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Wenyi Zhang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Shengming Sun
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Shubo Jin
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Yongsheng Gong
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Yan Wu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
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9
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Shi L, Li B, Zhou TT, Wang W, Chan SF. Functional and evolutionary implications from the molecular characterization of five spermatophore CHH/MIH/GIH genes in the shrimp Fenneropenaeus merguiensis. PLoS One 2018; 13:e0193375. [PMID: 29554093 PMCID: PMC5858750 DOI: 10.1371/journal.pone.0193375] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 02/11/2018] [Indexed: 02/02/2023] Open
Abstract
The recent use of RNA-Seq to study the transcriptomes of different species has helped identify a large number of new genes from different non-model organisms. In this study, five distinctive transcripts encoding for neuropeptide members of the CHH/MIH/GIH family have been identified from the spermatophore transcriptome of the shrimp Fenneropenaeus merguiensis. The size of these transcripts ranged from 531 bp to 1771 bp. Four transcripts encoded different CHH-family subtype I members, and one transcript encoded a subtype II member. RT-PCR and RACE approaches have confirmed the expression of these genes in males. The low degree of amino acid sequence identity among these neuropeptides suggests that they may have different specific function(s). Results from a phylogenetic tree analysis indicated that these neuropeptides were likely derived from a common ancestor gene resulting from mutation and gene duplication. These CHH-family members could be grouped into distinct clusters, indicating a strong structural/functional relationship among these neuropeptides. Eyestalk removal caused a significant increase in the expression of transcript 32710 but decreases in expression for transcript 28020. These findings suggest the possible regulation of these genes by eyestalk factor(s). In summary, the results of this study would justify a re-evaluation of the more generalized and pleiotropic functions of these neuropeptides. This study also represents the first report on the cloning/identification of five CHH family neuropeptides in a non-neuronal tissue from a single crustacean species.
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Affiliation(s)
- LiLi Shi
- Fisheries College, Guangdong Ocean University, Zhanjiang, PR China
| | - Bin Li
- Fisheries College, Guangdong Ocean University, Zhanjiang, PR China
| | - Ting Ting Zhou
- Fisheries College, Guangdong Ocean University, Zhanjiang, PR China
| | - Wei Wang
- Fisheries College, Guangdong Ocean University, Zhanjiang, PR China
- * E-mail: (SFC); (WW)
| | - Siuming F. Chan
- Fisheries College, Guangdong Ocean University, Zhanjiang, PR China
- * E-mail: (SFC); (WW)
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Liu C, Jia X, Zou Z, Wang X, Wang Y, Zhang Z. VIH from the mud crab is specifically expressed in the eyestalk and potentially regulated by transactivator of Sox9/Oct4/Oct1. Gen Comp Endocrinol 2018; 255:1-11. [PMID: 28935584 DOI: 10.1016/j.ygcen.2017.09.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 08/08/2017] [Accepted: 09/16/2017] [Indexed: 12/30/2022]
Abstract
Vitellogenesis-inhibiting hormone (VIH) is known to regulate ovarian maturation by suppressing the synthesis of vitellogenin (Vtg) in crustaceans, which belongs to a member of crustacean hyperglycemic hormone (CHH) family synthesized and secreted from the X-organ/sinus gland complex of eyestalks. In this study, the cDNA, genomic DNA (gDNA) and the 5'-upstream regulatory (promoter region) sequences of VIH gene were obtained by conventional PCR, genome walker and tail-PCR techniques according to our transcriptomic database of Scylla paramamosain. The full-length cDNA of SpVIH is 634bp including 105bp 5'UTR, 151bp 3'UTR and 378bp ORF that encodes a peptide of 125 amino acids. The full length gDNA of SpVIH is 790bp containing two exons and one intron. The 5'-flanking promoter regions of SpVIH we isolated are 3070bp from the translation initiation (ATG) and 2398bp from the predicted transcription initiation (A), which consists of putative core promoter region and multiple potential transcription factor binding sites. SpVIH was only expressed in eyestalk. The expression level of SpVIH in eyestalk of female crab decreased gradually along with the development of ovary. As there is not cell line of crabs available, we chose the mature transfection system HEK293FT cell lines to explore the mechanism of transcription regulation of SpVIH in crabs. Sequential deletion assays using luciferase reporter gene in HEK293FT cells revealed that the possible promoter activity regions (including positive and negative transcription factors binding sites simultaneously) presented between pSpVIH-4 and pSpVIH-6. In order to further identify the crucial transcription factors binding site in this region, the site-directed mutagenesis of Sox9/Oct4/Oct1 binding site of pSpVIH-4 was created. The results demonstrated that the transcriptional activity of pSpVIH-4△ decreased significantly (p<0.05). Thus, it is reasonable to deduce that the Sox9/Oct4/Oct1 may be the essential positive transcription factors which regulate the expression of SpVIH.
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Affiliation(s)
- Chunyun Liu
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China
| | - Xiwei Jia
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China
| | - Zhihua Zou
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China
| | - Xiaowei Wang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China
| | - Yilei Wang
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Fisheries College, Jimei University, Xiamen 361021, China.
| | - Ziping Zhang
- College of Animal Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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11
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Vrinda S, Jasmin C, Sivakumar KC, Jose B, Philip R, Bright Singh IS. Moult-inhibiting fusion protein augments while polyclonal antisera attenuate moult stages and duration in Penaeus monodon. Gen Comp Endocrinol 2016; 233:32-42. [PMID: 27179884 DOI: 10.1016/j.ygcen.2016.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 05/07/2016] [Accepted: 05/10/2016] [Indexed: 11/30/2022]
Abstract
Moulting in crustaceans is regulated by moult-inhibiting hormone (MIH) of the CHH family neuropeptides. The inhibitory functions of MIH have pivotal roles in growth and reproduction of Penaeus monodon. In this study, we report the expression of a thioredoxin-fused mature MIH I protein (mf-PmMIH I) of P. monodon in a bacterial system and its use as antigen to raise polyclonal antiserum (anti-mf-PmMIH I). The mature MIH I gene of 231bp, that codes for 77 amino acids, was cloned into the Escherichia coli thioredoxin gene fusion expression system. The translation expression vector construct (mf-PmMIH I+pET32a+) upon induction produced 29.85kDa mature MIH I fusion protein (mf-PmMIH I). The purified fusion protein was used as exogenous MIH I and as antigen to raise polyclonal antisera. When fusion protein (mf-PmMIH I) was injected into D2 and D3 stages of juvenile shrimp, the moult cycle duration was extended significantly to 16.67±1.03 and 14.67±1.03days respectively compared to that of 11.67±1.03days in controls. Moult duration was further reduced to 8.33±0.82days when polyclonal antiserum (anti-mf-PmMIH I - 1:500 dilutions) was injected. Anti-mf-PmMIH I immunolocalized MIH I producing neurosecretory cells in the eyestalk of P. monodon. In short, the present manuscript reports an innovative means of moult regulation in P. monodon with thioredoxin fused MIH I and antisera developed.
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Affiliation(s)
- S Vrinda
- National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Kochi 16, Kerala, India
| | - C Jasmin
- CSIR - National Institute of Oceanography, Regional Centre, Kochi 18, Kerala, India
| | - K C Sivakumar
- Bioinformatics Facility, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 14, Kerala, India
| | - Blessy Jose
- National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Kochi 16, Kerala, India
| | - Rosamma Philip
- Department of Marine Biology, Microbiology and Biochemistry, Cochin University of Science and Technology, Kochi 16, Kerala, India
| | - I S Bright Singh
- National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Kochi 16, Kerala, India.
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12
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Li GL, Deng SP, Jiang SN, Ye M, Chen HP, Chan SF, Zhu CH. cDNA cloning, expression, and immunolocalization of gonad-inhibiting hormone (GIH) in Litopenaeus vannamei. Genes Genomics 2015. [DOI: 10.1007/s13258-015-0315-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Qiao H, Xiong Y, Zhang W, Fu H, Jiang S, Sun S, Bai H, Jin S, Gong Y. Characterization, expression, and function analysis of gonad-inhibiting hormone in Oriental River prawn, Macrobrachium nipponense and its induced expression by temperature. Comp Biochem Physiol A Mol Integr Physiol 2015; 185:1-8. [PMID: 25770669 DOI: 10.1016/j.cbpa.2015.03.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 02/27/2015] [Accepted: 03/05/2015] [Indexed: 10/23/2022]
Abstract
Gonad-inhibiting hormone (GIH) is a member of crustacean hyperglycemic hormone family and plays a major role in regulating reproduction in crustaceans. In this study, a full-length cDNA of GIH of Oriental River prawn, Macrobrachium nipponense (Mn-GIH) was cloned from the eyestalk. A 1350 bp full-length Mn-GIH cDNA harbored 336 bp of an open reading frame encoding signal peptide of 112 amino acid residues. Sequence analysis revealed that the overall cDNA sequence and specific functional sites of Mn-GIH were highly conserved with those in other crustacean species. Expression analysis by quantitative real-time PCR demonstrated its tissue-specific, larval developmental stage-specific, and ovary developmental stage-specific expression pattern, respectively. The RNAi by GIH-ds-RNA in vivo injection was effective in this study and resulted a 50% (day 1), 83% (day 5) and 63% (day 9) down-regulation compared to control. The obvious changes of gonad somatic index (GSI) rate also provided strong evidence to the inhibition effects of GIH on ovary maturation and spawning. Four temperature gradients (12 °C ± 1 °C, 17 °C ± 1 °C, 22 °C ± 1 °C, 27 °C ± 1 °C) were set to imitate the temperature in breeding and non-breeding seasons. The observed expression profiles suggest that Mn-GIH did not display a high level expression as supposed to maintain an immature ovary state under low temperature (12 °C). The results indicated that GIH was probably activated to concentrating and working by a proper temperature before reaching to breeding season.
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Affiliation(s)
- Hui Qiao
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Yiwei Xiong
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Wenyi Zhang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Hongtuo Fu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China.
| | - Sufei Jiang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Shengming Sun
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Hongkun Bai
- Wuxi Fishery College Nanjing Agricultural University, Wuxi 214081, China
| | - Shubo Jin
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Yongsheng Gong
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
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14
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Toullec JY, Corre E, Bernay B, Thorne MAS, Cascella K, Ollivaux C, Henry J, Clark MS. Transcriptome and peptidome characterisation of the main neuropeptides and peptidic hormones of a euphausiid: the Ice Krill, Euphausia crystallorophias. PLoS One 2013; 8:e71609. [PMID: 23990964 PMCID: PMC3749230 DOI: 10.1371/journal.pone.0071609] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Accepted: 07/01/2013] [Indexed: 11/19/2022] Open
Abstract
Background The Ice krill, Euphausia crystallorophias is one of the species at the base of the Southern Ocean food chain. Given their significant contribution to the biomass of the Southern Ocean, it is vitally important to gain a better understanding of their physiology and, in particular, anticipate their responses to climate change effects in the warming seas around Antarctica. Methodology/Principal Findings Illumina sequencing was used to produce a transcriptome of the ice krill. Analysis of the assembled contigs via two different methods, produced 36 new pre-pro-peptides, coding for 61 neuropeptides or peptide hormones belonging to the following families: Allatostatins (A, B et C), Bursicon (α and β), Crustacean Hyperglycemic Hormones (CHH and MIH/VIHs), Crustacean Cardioactive Peptide (CCAP), Corazonin, Diuretic Hormones (DH), the Eclosion Hormone (EH), Neuroparsin, Neuropeptide F (NPF), small Neuropeptide F (sNPF), Pigment Dispersing Hormone (PDH), Red Pigment Concentrating Hormone (RPCH) and finally Tachykinin. LC/MS/MS proteomics was also carried out on eyestalk extracts, which are the major site of neuropeptide synthesis in decapod crustaceans. Results confirmed the presence of six neuropeptides and six precursor-related peptides previously identified in the transcriptome analyses. Conclusions This study represents the first comprehensive analysis of neuropeptide hormones in a Eucarida non-decapod Malacostraca, several of which are described for the first time in a non-decapod crustacean. Additionally, there is a potential expansion of PDH and Neuropeptide F family members, which may reflect certain life history traits such as circadian rhythms associated with diurnal migrations and also the confirmation via mass spectrometry of several novel pre-pro-peptides, of unknown function. Knowledge of these essential hormones provides a vital framework for understanding the physiological response of this key Southern Ocean species to climate change and provides a valuable resource for studies into the molecular phylogeny of these organisms and the evolution of neuropeptide hormones.
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Affiliation(s)
- Jean-Yves Toullec
- UPMC University of Paris 06, UMR 7144 CNRS, Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Roscoff, France
- Centre National de la Recherche Scientifique, UMR 7144, Station Biologique de Roscoff, Roscoff, France
- * E-mail:
| | - Erwan Corre
- UPMC University of Paris 06, FR 2424 CNRS, ABiMS, Analysis and Bioinformatics for Marine Science, Station Biologique de Roscoff, Roscoff, France
| | - Benoît Bernay
- University of Caen Basse Normandie, FRE 3484 CNRS, Biologie des Mollusques Marins et des Ecosystèmes Associés, Caen, France
- University of Caen Basse Normandie, Plateforme PROTEOGEN, Caen, France, SF ICORE 4206
| | - Michael A. S. Thorne
- British Antarctic Survey, Natural Environment Research Council, High Cross, Cambridge, United Kingdom
| | - Kévin Cascella
- UPMC University of Paris 06, UMR 7144 CNRS, Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, Roscoff, France
- Centre National de la Recherche Scientifique, UMR 7144, Station Biologique de Roscoff, Roscoff, France
| | - Céline Ollivaux
- UPMC University of Paris 06, UMR 7150 CNRS, Mer et Santé, Station Biologique de Roscoff, Roscoff, France
- Centre National de la Recherche Scientifique, UMR 7150, Station Biologique de Roscoff, Roscoff, France
- Université Européenne de Bretagne, UEB, France
| | - Joël Henry
- University of Caen Basse Normandie, FRE 3484 CNRS, Biologie des Mollusques Marins et des Ecosystèmes Associés, Caen, France
- University of Caen Basse Normandie, Plateforme PROTEOGEN, Caen, France, SF ICORE 4206
| | - Melody S. Clark
- British Antarctic Survey, Natural Environment Research Council, High Cross, Cambridge, United Kingdom
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15
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Abstract
Control of reproductive development in crustaceans requires neuropeptides, ecdysone and methyl farnesoate (MF). A major source of neuropeptides is the X-organ-sinus gland (XO-SG) complex located in the eyestalk ganglia of crustaceans. The other regulatory factors (either peptides or neuromodulators) are produced in the brain and thoracic ganglia (TG). Two other regulatory non-peptide compounds, the steroid ecdysone and the sesquiterpene MF, are produced by the Y-organs and the mandibular organs, respectively. In the current review, I have tried to recapitulate recent studies on the role of gonadal regulatory factors in regulating crustacean reproduction.
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16
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Qian YQ, Dai L, Yang JS, Yang F, Chen DF, Fujiwara Y, Tsuchida S, Nagasawa H, Yang WJ. CHH family peptides from an ‘eyeless’ deep-sea hydrothermal vent shrimp, Rimicaris kairei: Characterization and sequence analysis. Comp Biochem Physiol B Biochem Mol Biol 2009; 154:37-47. [DOI: 10.1016/j.cbpb.2009.04.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2009] [Revised: 04/29/2009] [Accepted: 04/30/2009] [Indexed: 11/29/2022]
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17
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Nagaraju GPC, Kumari NS, Prasad GLV, Rajitha B, Meenu M, Rao MS, Naik BR. Structural prediction and analysis of VIH-related peptides from selected crustacean species. Bioinformation 2009; 4:6-11. [PMID: 20011146 PMCID: PMC2770261 DOI: 10.6026/97320630004006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2009] [Revised: 04/21/2009] [Accepted: 05/27/2009] [Indexed: 11/23/2022] Open
Abstract
The tentative elucidation of the 3D-structure of vitellogenesis inhibiting hormone (VIH)
peptides is conversely underprivileged by difficulties in gaining enough peptide or protein,
diffracting crystals, and numerous extra technical aspects. As a result, no structural
information is available for VIH peptide sequences registered in the Genbank. In this
situation, it is not surprising that predictive methods have achieved great interest. Here, in
this study the molt-inhibiting hormone (MIH) of the kuruma prawn (Marsupenaeus
japonicus) is used, to predict the structure of four VIHrelated peptides in the
crustacean species. The high similarity of the 3D-structures and the calculated physiochemical
characteristics of these peptides suggest a common fold for the entire family.
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Affiliation(s)
- Ganji Purna Chandra Nagaraju
- Department of Biology, University of Central Florida, Orlando,
FL-32816, USA
- Ganji Purna Chandra Nagaraju:
Phone: +1 - 321 - 305- 8721; Fax: +1 - 407 - 823
– 0715
| | - Nunna Siva Kumari
- Department of Bioinformatics, Osmania University, Hyderabad,
Andhra Pradesh-500 007, India
- Equal Contribution
| | - Ganji Lakshmi Vara Prasad
- Department of Zoology, Osmania University, Hyderabad, Andhra
Pradesh-500 007, India
- Equal Contribution
| | - Balney Rajitha
- Department of Biology, University of Central Florida, Orlando,
FL-32816, USA
- Equal Contribution
| | - Madan Meenu
- Department of Molecular Biology and Microbiology, University of
Central Florida, Orlando, FL-32816, USA
- Equal Contribution
| | - Manam Sreenivasa Rao
- Department of Chemistry, Chundi Ranganayakulu Post Graduate
College, Chilakaluripet, Andhra Pradesh-522 616, India
- Equal Contribution
| | - Bannoth Reddya Naik
- Department of Zoology, Osmania University, Hyderabad, Andhra
Pradesh-500 007, India
- Equal Contribution
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18
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Treerattrakool S, Panyim S, Chan SM, Withyachumnarnkul B, Udomkit A. Molecular characterization of gonad-inhibiting hormone of Penaeus monodon and elucidation of its inhibitory role in vitellogenin expression by RNA interference. FEBS J 2008; 275:970-80. [DOI: 10.1111/j.1742-4658.2008.06266.x] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Chen HY, Watson RD, Chen JC, Liu HF, Lee CY. Molecular characterization and gene expression pattern of two putative molt-inhibiting hormones from Litopenaeus vannamei. Gen Comp Endocrinol 2007; 151:72-81. [PMID: 17222842 DOI: 10.1016/j.ygcen.2006.11.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2006] [Revised: 11/27/2006] [Accepted: 11/28/2006] [Indexed: 10/23/2022]
Abstract
Two cDNA sequences (Liv-MIH1 and Liv-MIH2) were cloned from the eyestalk ganglia of the white shrimp Litopenaeus vannamei. The conceptually translated peptide precursors consist of a mature peptide (77 residues for Liv-MIH1, 75 residues for Liv-MIH2), preceded by a 28-residue signal peptide. Both mature peptides share highest sequence identity with other known MIHs, and contain several conserved residues that have been proposed to be functionally critical for MIH activity. Analysis of genomic sequences reveals that both genes are organized in a 3 exon/2 intron manner, with the same sites of intron insertion. The transcripts of Liv-MIH1 and Liv-MIH2 were detected exclusively in the eyestalk, but not in other neural and non-neural tissues examined. Phylogenetic analysis indicates that Liv-MIH1 and Liv-MIH2 cluster with the type II peptides that are considered as penaeid MIH. In addition, a quantitative real-time polymerase chain reaction (PCR) assay was developed and validated for the quantification of gene expression of Liv-MIH1 and Liv-MIH2. Transcript levels for both genes remained constant through stages A - D(1') (ranges of relative expression levels are 97.9+/-2.9 to 104.5+/-8.9% for Liv-MIH1, and 85.6+/-6.7 to 104.7+/-10.8% for Liv-MIH2), and declined afterwards, reaching a lowest level during stage D(2)D(3) (40.6+/-0.4% for Liv-MIH1, and 48.5+/-3.2% for Liv-MIH2). These significant decreases in the transcript levels correspond to a significant increase in hemolymph ecdysteroid titers at stage D(2)D(3). These results clearly indicate that Liv-MIH1 and Liv-MIH2 are type II peptides of the crustacean hyperglycemic hormone family and most likely function as MIHs in the white shrimp. They are discussed with regard to the presence of multiple MIHs and possible functional divergence of type II peptides in Penaeidae, as well as endocrine regulation of crustacean molting.
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Affiliation(s)
- Hsiang-Yin Chen
- Department of Biology, National Changhua University of Education, Changhua, 50058, Taiwan, ROC
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20
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Hsu YWA, Messinger DI, Chung JS, Webster SG, de la Iglesia HO, Christie AE. Members of the crustacean hyperglycemic hormone (CHH) peptide family are differentially distributed both between and within the neuroendocrine organs of Cancer crabs: implications for differential release and pleiotropic function. ACTA ACUST UNITED AC 2006; 209:3241-56. [PMID: 16888072 DOI: 10.1242/jeb.02372] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The crustacean hyperglycemic hormone (CHH) family of peptides includes CHH, moult-inhibiting hormone (MIH) and mandibular organ-inhibiting hormone (MOIH). In the crab Cancer pagurus, isoforms of these peptides, as well as CHH precursor-related peptide (CPRP), have been identified in the X-organ-sinus gland (XO-SG) system. Using peptides isolated from the C. pagurus SG, antibodies to each family member and CPRP were generated. These sera were then used to map the distributions and co-localization patterns of these peptides in the neuroendocrine organs of seven Cancer species: Cancer antennarius, Cancer anthonyi, Cancer borealis, Cancer gracilis, Cancer irroratus, Cancer magister and Cancer productus. In addition to the XO-SG, the pericardial organ (PO) and two other neuroendocrine sites contained within the stomatogastric nervous system, the anterior cardiac plexus (ACP) and the anterior commissural organ (ACO), were studied. In all species, the peptides were found to be differentially distributed between the neuroendocrine sites in conserved patterns: i.e. CHH, CPRP, MIH and MOIH in the XO-SG, CHH, CPRP and MOIH in the PO, and MOIH in the ACP (no immunolabeling was found in the ACO). Moreover, in C. productus (and probably in all species), the peptides present in the XO-SG and PO were differentially distributed between the neurons within each of these neuroendocrine organs (e.g. CHH and CPRP in one set of XO somata with MIH and MOIH co-localized in a different set of cell bodies). Taken collectively, the differential distributions of CHH family members and CPRP both between and within the neuroendocrine organs of crabs of the genus Cancer suggests that each of these peptides may be released into the circulatory system in response to varied, tissue-specific cues and that the PO- and/or ACP-derived isoforms may possess functions distinct from those classically ascribed to their release from the SG.
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Affiliation(s)
- Yun-Wei A Hsu
- Department of Biology, University of Washington, Box 351800, Seattle, WA 98195-1800, USA
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21
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Okumura T, Kim YK, Kawazoe I, Yamano K, Tsutsui N, Aida K. Expression of vitellogenin and cortical rod proteins during induced ovarian development by eyestalk ablation in the kuruma prawn, Marsupenaeus japonicus. Comp Biochem Physiol A Mol Integr Physiol 2006; 143:246-53. [PMID: 16423545 DOI: 10.1016/j.cbpa.2005.12.002] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2005] [Revised: 11/29/2005] [Accepted: 11/30/2005] [Indexed: 11/17/2022]
Abstract
In penaeid shrimp species, ovarian development is characterized by the accumulation of a major yolk protein (vitellin) and the formation of cortical rods in the oocytes. The process is considered to be under the control of a neuroendocrine organ in the eyestalk (the X-organ sinus gland complex). In the present study, the synthesis of vitellogenin (VTG, precursor of vitellin) and two kinds of cortical rod proteins (cortical rod protein, CRP; thrombospondin, MjTSP) was induced by bilateral eyestalk ablation (removal of the X-organ sinus gland complex) in immature female kuruma prawn, Marsupenaeus japonicus, and the synthesis process was monitored over a 7-day period after the ablation. The ovarian weight and hemolymph VTG levels increased in the ablated females. The VTG mRNA levels in the ovary increased concomitantly with vitellin accumulation in the ovary after eyestalk ablation. On the other hand, the CRP and MjTSP protein levels in the ovary increased after eyestalk ablation, whereas the CRP and MjTSP mRNA levels in the ovary did not change concomitantly. The results suggest that the regulatory mechanism of gene expression by eyestalk hormones is different between VTG (transcriptional control) and CRP-MjTSP (translational control).
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Affiliation(s)
- Takuji Okumura
- National Research Institute of Aquaculture, Fisheries Research Agency, Minami-ise, Mie 516-0193, Japan.
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22
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Structure, Function and Mode of Action of Select Arthropod Neuropeptides. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2006. [DOI: 10.1016/s1572-5995(06)80026-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Bulau P, Okuno A, Thome E, Schmitz T, Peter-Katalinic J, Keller R. Characterization of a molt-inhibiting hormone (MIH) of the crayfish, Orconectes limosus, by cDNA cloning and mass spectrometric analysis. Peptides 2005; 26:2129-36. [PMID: 16269348 DOI: 10.1016/j.peptides.2005.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2005] [Revised: 03/02/2005] [Accepted: 03/02/2005] [Indexed: 10/25/2022]
Abstract
The structure of the precursor of a molt-inhibiting hormone (MIH) of the American crayfish, Orconectes limosus was determined by cloning of a cDNA based on RNA from the neurosecretory perikarya of the X-organ in the eyestalk ganglia. The open reading frame includes the complete precursor sequence, consisting of a signal peptide of 29, and the MIH sequence of 77 amino acids. In addition, the mature peptide was isolated by HPLC from the neurohemal sinus gland and analyzed by ESI-MS and MALDI-TOF-MS peptide mapping. This showed that the mature peptide (Mass 8664.29 Da) consists of only 75 amino acids, having Ala75-NH2 as C-terminus. Thus, C-terminal Arg77 of the precursor is removed during processing, and Gly76 serves as an amide donor. Sequence comparison confirms this peptide as a novel member of the large family, which includes crustacean hyperglycaemic hormone (CHH), MIH and gonad (vitellogenesis)-inhibiting hormone (GIH/VIH). The lack of a CPRP (CHH-precursor related peptide) in the hormone precursor, the size and specific sequence characteristics show that Orl MIH belongs to the MIH/GIH(VIH) subgroup of this larger family. Comparison with the MIH of Procambarus clarkii, the only other MIH that has thus far been identified in freshwater crayfish, shows extremely high sequence conservation. Both MIHs differ in only one amino acid residue ( approximately 99% identity), whereas the sequence identity to several other known MIHs is between 40 and 46%.
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Affiliation(s)
- Patrick Bulau
- Institute for Molecular Physiology and Developmental Biology, University of Bonn, Endenicher Allee 11-13, D-53115 Bonn, Germany.
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Gu PL, Tobe SS, Chow BKC, Chu KH, He JG, Chan SM. Characterization of an additional molt inhibiting hormone-like neuropeptide from the shrimp Metapenaeus ensis. Peptides 2002; 23:1875-83. [PMID: 12431725 DOI: 10.1016/s0196-9781(02)00178-x] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We have identified a second form of the type-II neuropeptide encoding a molt inhibiting hormone-like (MeeMIH-B) neuropeptide. MeeMIH-B showed only a 70% amino acid identity to the MIH-A (formerly MIH) isolated from the same species, suggesting a possible different function of the deduced neuropeptide. Like other neuropeptide members of the CHH family, the MIH-B gene consists of three exons separated by two introns. The levels of MIH-B mRNA transcript in the eyestalk decrease in the initial phase of gonad maturation and increase towards the end of maturation. The drop in MIH-B level suggests an inhibitory role for this neuropeptide in the initiation of vitellogenesis. MIH-B transcripts can also be detected in the brain, thoracic ganglion and ventral nerve cord. Together with the CHH-B peptide that we have previously described, this is the second peptide of the CHH family that can also be identified in the ventral nerve cord and in the XOSG complex. A recombinant MIH-B was produced and a polyclonal antibody against rMIH-B was subsequently generated. Specific anti-rMIH-B antiserum recognized the presence of MIH-B in the sinus gland, X-organs, as well as a giant neuron of the ventral nerve cord. Injection of rMIH-B delayed the molting cycle of the maturing female. Taken together, the results of this study suggest that a drop in MIH-B level may be required for the delay in the molting of the maturing females.
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Affiliation(s)
- P-L Gu
- Department of Zoology, The University of Hong Kong, Pokfulam Road, PR China
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