1
|
Minkowicz S, Mathews MA, Mou FH, Yoon H, Freda SN, Cui ES, Kennedy A, Kozorovitskiy Y. Striatal ensemble activity in an innate naturalistic behavior. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.23.529669. [PMID: 36865109 PMCID: PMC9980072 DOI: 10.1101/2023.02.23.529669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Self-grooming is an innate, naturalistic behavior found in a wide variety of organisms. The control of rodent grooming has been shown to be mediated by the dorsolateral striatum through lesion studies and in-vivo extracellular recordings. Yet, it is unclear how populations of neurons in the striatum encode grooming. We recorded single-unit extracellular activity from populations of neurons in freely moving mice and developed a semi-automated approach to detect self-grooming events from 117 hours of simultaneous multi-camera video recordings of mouse behavior. We first characterized the grooming transition-aligned response profiles of striatal projection neuron and fast spiking interneuron single units. We identified striatal ensembles whose units were more strongly correlated during grooming than during the entire session. These ensembles display varied grooming responses, including transient changes around grooming transitions or sustained changes in activity throughout the duration of grooming. Neural trajectories computed from the identified ensembles retain the grooming related dynamics present in trajectories computed from all units in the session. These results elaborate striatal function in rodent self-grooming and demonstrate that striatal grooming-related activity is organized within functional ensembles, improving our understanding of how the striatum guides action selection in a naturalistic behavior.
Collapse
Affiliation(s)
- Samuel Minkowicz
- Department of Neurobiology, Northwestern University, Evanston, IL, United States
| | | | - Felicia Hoilam Mou
- Department of Neurobiology, Northwestern University, Evanston, IL, United States
| | - Hyoseo Yoon
- Department of Neurobiology, Northwestern University, Evanston, IL, United States
| | - Sara Nicole Freda
- Department of Neurobiology, Northwestern University, Evanston, IL, United States
| | - Ethan S Cui
- Department of Neurobiology, Northwestern University, Evanston, IL, United States
| | - Ann Kennedy
- Department of Neuroscience, Northwestern University, Chicago, IL, United States
| | | |
Collapse
|
2
|
de la Fuente M, Folgar RM, Martínez-Paz P, Cortés E, Martínez-Guitarte JL, Morales M. Effect of environmental stressors on the mRNA expression of ecdysone cascade genes in Chironomus riparius. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:10210-10221. [PMID: 34515935 PMCID: PMC8783914 DOI: 10.1007/s11356-021-16339-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/31/2021] [Indexed: 04/16/2023]
Abstract
Chemical compounds produced by humans are continuously reaching the environment. In this work, we characterised the expression patterns of important endocrine-related genes involved in the ecdysone pathway in the fourth larval instar of the model species Chironomus riparius after exposure to three chemicals: ethinyl oestradiol (EE), nonylphenol (NP) and bis(tributyltin) oxide (TBTO). We used real-time PCR to analyse the gene expression levels of ecdysone receptor (EcR) and ultraspiracle (usp), two genes that encode the dimerising partners of the functional ecdysone receptor; the orphan receptor ERR (oestrogen-related receptor), with an unknown function in invertebrates; and E74, an early response gene induced by ecdysteroids. We estimated the bioaccumulation potential, bioavailability and physicochemical properties of these chemicals, together with a number of other exogenous agents known to interfere with the hormonal system. We also provide a review of previous transcriptional studies showing the effect of all these chemicals on ecdysone cascade genes. This analysis provides useful data for future ecotoxicological studies involving invertebrate species. CAPSULE: Changes in transcriptional activities of EcR, E74, usp and ERR genes after exposure to endocrine-disrupting chemicals would be useful as molecular bioindicators of endocrine disruption in Chironomus riparius.
Collapse
Affiliation(s)
- Mercedes de la Fuente
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED. Urbanización Monte Rozas. Avda. Esparta s/n. Ctra. de Las Rozas al Escorial Km. 5, 28232, Las Rozas-Madrid, Spain
| | - Raquel Martín Folgar
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED. Urbanización Monte Rozas. Avda. Esparta s/n. Ctra. de Las Rozas al Escorial Km. 5, 28232, Las Rozas-Madrid, Spain.
| | - Pedro Martínez-Paz
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED. Urbanización Monte Rozas. Avda. Esparta s/n. Ctra. de Las Rozas al Escorial Km. 5, 28232, Las Rozas-Madrid, Spain
- Grupo de Biomedicina en Cuidados Críticos, Facultad de Medicina, Universidad de Valladolid, Av. Ramón y Cajal 7, 47005, Valladolid, Spain
| | - Estrella Cortés
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED. Urbanización Monte Rozas. Avda. Esparta s/n. Ctra. de Las Rozas al Escorial Km. 5, 28232, Las Rozas-Madrid, Spain
| | - José Luis Martínez-Guitarte
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED. Urbanización Monte Rozas. Avda. Esparta s/n. Ctra. de Las Rozas al Escorial Km. 5, 28232, Las Rozas-Madrid, Spain
| | - Mónica Morales
- Grupo de Biología y Toxicología Ambiental, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, UNED. Urbanización Monte Rozas. Avda. Esparta s/n. Ctra. de Las Rozas al Escorial Km. 5, 28232, Las Rozas-Madrid, Spain
| |
Collapse
|
3
|
Ding M, Jiang S, Miao J, Pan L. Possible roles of gonadotropin-releasing hormone (GnRH) and melatonin in the control of gonadal development of clam Ruditapes philippinarum. Comp Biochem Physiol A Mol Integr Physiol 2021; 262:111059. [PMID: 34455085 DOI: 10.1016/j.cbpa.2021.111059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/21/2021] [Accepted: 08/23/2021] [Indexed: 11/17/2022]
Abstract
Gonadotropin-releasing Hormone (GnRH) is a key reproductive endocrine regulator, and melatonin is considered as a potent candidate in the regulation of photoperiod-related reproductive endocrinology. Nevertheless, their function during gonadal development of molluscs has not been uncovered yet. In the present study, RNAi of GnRH and melatonin injection were conducted on marine bivalve manila clam Ruditapes philippinarum. Tissue section showed that gonadal development was significantly inhibited in male clams injected with GnRH dsRNA for 21 days. For GnRH RNAi treatment group, the expression levels of steroid synthetic enzyme genes 3β-hydroxysteroid dehydrogenase (3β-HSD), 17β-hydroxysteroid dehydrogenase (17β-HSD), cytochrome P450 (CYP3A) and melatonin receptor homolog (MTNR) gene were significantly down-regulated in female clams while significantly up-regulated in male clams. In melatonin injection group, the expression of GnRH was significantly inhibited and the expression of 3β-HSD, 17β-HSD, CYP3A and MTNR genes also increased which was in line with the GnRH dsRNA injection group in male clams. These results suggest that melatonin may affect GnRH expression and both have effects on gonadal development of bivalves. This study provides evidence for understanding the effects of melatonin and GnRH on reproductive endocrinology and gonadal development in bivalve molluscs.
Collapse
Affiliation(s)
- Min Ding
- The Key Laboratory of Mariculture Ocean University of China, Ministry of Education, Qingdao 266003, PR China
| | - Shanshan Jiang
- The Key Laboratory of Mariculture Ocean University of China, Ministry of Education, Qingdao 266003, PR China
| | - Jingjing Miao
- The Key Laboratory of Mariculture Ocean University of China, Ministry of Education, Qingdao 266003, PR China.
| | - Luqing Pan
- The Key Laboratory of Mariculture Ocean University of China, Ministry of Education, Qingdao 266003, PR China
| |
Collapse
|
4
|
Song CP, Sun LL, Zheng LB, Chi CF. Gonadotropin-releasing hormone-like gene in the cephalopod, Sepia pharaonis: characterization, expression analysis, and localization in the brain. INVERTEBR REPROD DEV 2021. [DOI: 10.1080/07924259.2021.1935335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Chang-Pu Song
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Lincheng, China
| | - Lian-lian Sun
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Lincheng, China
| | - Li-bing Zheng
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Lincheng, China
| | - Chang-feng Chi
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Lincheng, China
| |
Collapse
|
5
|
Funayama S, Kawashima Y, Saito T, Furukawa S, Kodera Y, Moriyama S. Identification and Function of GnRH-like Peptide in the Pacific Abalone, Haliotis discus hannai. Zoolog Sci 2019; 36:339-347. [PMID: 34664905 DOI: 10.2108/zs180189] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 02/26/2019] [Indexed: 11/17/2022]
Abstract
Gonadotropin-releasing hormone (GnRH) is an important regulator of reproductive function in various vertebrates and invertebrates. In the present study, we have identified the GnRH-like peptide cDNA and peptide from the cerebral ganglion (CG) of the Pacific abalone, Haliotis discus hannai. Pacific abalone GnRH-like peptide (hdhGnRH-like peptide) cDNA encodes precursor, which possesses the typical organization of the known mollusk GnRH-like peptide precursors, including a hydrophobic signal peptide, GnRH-like peptide, and a cleavage site followed by a GAP-like peptide region. Three hdhGnRH-like peptides, pQNYHFSNGWHAamide (hdhGnRH-11amide), pQNYHFSNGWHA (hdhGnRH-11OH), and pQNYHFSNGWHAG (hdhGnRH-12OH), were determined from the acid/acetone extract of the CG by mass spectrometry (LC-MS/MS) analysis. The hdhGnRH-like peptide mRNA expression was detected not only in the CG but also in gonads, and hdhGnRH-11amide was also detected in the extract of gonads. The mRNA expression of hdhGnRH-like peptide in the CG was lower in spawned males than in non-spawned animals, while no change in hdhGnRH-like peptide mRNA expression was shown in both ovulated and non-ovulated abalone. The hdhGnRH-11amide induces spawning and ovulation of both mature males and females in a concentration-dependent fashion following intramuscular injection. These results indicate that three hdhGnRH-like peptides are yielded from a single hdhGnRH-like peptide precursor, and that at least hdhGnRH-11amide is involved in the control of reproduction of the Pacific abalone.
Collapse
Affiliation(s)
- Shohei Funayama
- Laboratory of Functional Biology of Aquaculture, School of Marine Biosciences, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| | - Yusuke Kawashima
- Department of Physics, School of Science, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan.,Department of Genome Research and Development, Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | - Tatsuya Saito
- Department of Physics, School of Science, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan.,BioMedix Co. Ltd., Tokyo 104-0033, Japan
| | | | - Yoshio Kodera
- Department of Physics, School of Science, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| | - Shunsuke Moriyama
- Laboratory of Functional Biology of Aquaculture, School of Marine Biosciences, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan,
| |
Collapse
|
6
|
Reguera P, Couceiro L, Fernández N. A review of the empirical literature on the use of limpets Patella spp. (Mollusca: Gastropoda) as bioindicators of environmental quality. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 148:593-600. [PMID: 29127822 DOI: 10.1016/j.ecoenv.2017.11.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/30/2017] [Accepted: 11/03/2017] [Indexed: 06/07/2023]
Abstract
The need to carry out monitoring programs for environmental pollution of coastal ecosystems makes it necessary to increase the number of indicator species in order to have a wide range of suitable organisms for most of the possible toxic substances and ways of exposure. With the purpose of analyzing the suitability of limpets (Patella spp.) for their use in biomonitoring programs, a literature review was performed on 88 cases found in the Web of Science online platform. The capacity of limpets to accumulate metals and hydrocarbons has been examined in several field studies. In most cases there is a clear relationship between body content of a pollutant in soft tissues of limpets and the corresponding environmental level. Likewise, different responses to pollutants have been reported in limpets, including induction of DNA damage, induction of metallothioneins, oxidative stress, decrease of Neutral Red retention or variations in heart rate. Regarding the study of changes in community structure, an uneven response to disturbances (e.g. oil spills, wastewater discharge) by species of the genus Patella has been documented. Moreover, generally limpets respond to pollutants similarly to, or even more effectively than, mussels; therefore, their inclusion as sentinel organisms in regional monitoring plans seems appropriate.
Collapse
Affiliation(s)
- Pablo Reguera
- Universidade da Coruña, Facultade de Ciencias, Campus de A Coruña, 15071 A Coruña, Spain
| | - Lucía Couceiro
- Universidade da Coruña, Facultade de Ciencias, Campus de A Coruña, 15071 A Coruña, Spain
| | - Nuria Fernández
- Universidade da Coruña, Facultade de Ciencias, Campus de A Coruña, 15071 A Coruña, Spain.
| |
Collapse
|
7
|
Characterization and spatiotemporal expression of gonadotropin-releasing hormone in the Pacific abalone, Haliotis discus hannai. Comp Biochem Physiol A Mol Integr Physiol 2017; 209:1-9. [PMID: 28408352 DOI: 10.1016/j.cbpa.2017.04.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/23/2017] [Accepted: 04/03/2017] [Indexed: 11/20/2022]
Abstract
Gonadotropin-releasing hormone (GnRH) is a key neuropeptide regulating reproduction in humans and other vertebrates. Recently, GnRH-like cDNAs and peptides were reported in marine mollusks, implying that GnRH-mediated reproduction is an ancient neuroendocrine system that arose prior to the divergence of protostomes and deuterostomes. Here, we evaluated the reproductive control system mediated by GnRH in the Pacific abalone Haliotis discus hannai. We cloned a prepro-GnRH cDNA (Hdh-GnRH) from the pleural-pedal ganglion (PPG) in H. discus hannai, and analyzed its spatiotemporal gene expression pattern. The open reading frame of Hdh-GnRH encodes a protein of 101 amino acids, consisting of a signal peptide, a GnRH dodecapeptide, a cleavage site, and a GnRH-associated peptide. This structure and sequence are highly similar to GnRH-like peptides reported for mollusks and other invertebrates. Quantitative polymerase chain reaction demonstrated that Hdh-GnRH mRNA was more strongly expressed in the ganglions (PPG and cerebral ganglion [CG]) than in other tissues (gonads, gills, intestine, hemocytes, muscle, and mantle) in both sexes. In females, the expression levels of Hdh-GnRH mRNA in the PPG and branchial ganglion (BG) were significantly higher at the ripe and partial spent stages than at the early and late active stages. In males, Hdh-GnRH mRNA levels in the BG showed a significant increase in the partial spent stage. Unexpectedly, Hdh-GnRH levels in the CG were not significantly different among the examined stages in both sexes. These results suggest that Hdh-GnRH mRNA expression profiles in the BG and possibly the PPG are tightly correlated with abalone reproductive activities.
Collapse
|
8
|
Li JY, Pan LQ, Miao JJ, Xu RY, Xu WJ. De novo assembly and characterization of the ovarian transcriptome reveal mechanisms of the final maturation stage in Chinese scallop Chlamys farreri. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2016; 20:118-124. [DOI: 10.1016/j.cbd.2016.08.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 08/10/2016] [Accepted: 08/11/2016] [Indexed: 12/14/2022]
|
9
|
Minakata H, Tsutsui K. Oct-GnRH, the first protostomian gonadotropin-releasing hormone-like peptide and a critical mini-review of the presence of vertebrate sex steroids in molluscs. Gen Comp Endocrinol 2016; 227:109-14. [PMID: 26319132 DOI: 10.1016/j.ygcen.2015.07.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 07/07/2015] [Accepted: 07/28/2015] [Indexed: 11/21/2022]
Abstract
In protostome and deuterosome invertebrates, neurosecretory cells play major roles in the endocrine system. The optic glands of cephalopods are indicators of sexual maturation. In mature octopuses, optic glands enlarge and secrete a gonadotropic hormone. A peptide with structural features similar to that of vertebrate gonadotropin-releasing hormone (GnRH) was isolated from the octopus, Octopus vulgaris, and was named oct-GnRH. The discovery of oct-GnRH has triggered structural determinations and predictions of other mollusc GnRH-like peptides in biochemical and in silico studies. Interestingly, cephalopods studied so far are characterized by a single molecular form of oct-GnRH with a C-terminal -Pro-Gly-NH2 sequence, which is critical for gonadotropin-releasing activity in vertebrates. Other molluscan GnRH-like peptides lack the C-terminal -Pro-Gly-NH2 sequence but have -X-NH2 or -Pro-Gly although all protostome GnRH-like peptides have yet to be sequenced. In marine molluscs, relationships between GnRH-like peptides and sex steroids have been studied to verify the hypothesis that molluscs have vertebrate-type sex steroid system. However, it is currently questionable whether such sex steroids are present and whether they play endogenous roles in the reproductive system of molluscs. Because molluscs uptake and store steroids from the environment and fishes release sex steroids into the external environment, it is impossible to rule out the contamination of vertebrate sex steroids in molluscs. The function of key enzymes of steroidogenesis within molluscs remains unclear. Thus, evidence to deny the existence of the vertebrate-type sex steroid system in molluscs has been accumulated. The elucidation of substances, which regulate the maturation and maintenance of gonads and other reproductive functions in molluscs will require rigorous and progressive scientific study.
Collapse
Affiliation(s)
| | - Kazuyoshi Tsutsui
- Laboratory of Integrative Brain Sciences, Department of Biology and Center for Medical Life Science, Waseda University, Tokyo 162-8480, Japan
| |
Collapse
|
10
|
Song Y, Miao J, Cai Y, Pan L. Molecular cloning, characterization, and expression analysis of a gonadotropin-releasing hormone-like cDNA in the clam, Ruditapes philippinarum. Comp Biochem Physiol B Biochem Mol Biol 2015. [DOI: 10.1016/j.cbpb.2015.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
11
|
Cheung RCF, Ng TB, Wong JH. Marine Peptides: Bioactivities and Applications. Mar Drugs 2015; 13:4006-43. [PMID: 26132844 PMCID: PMC4515606 DOI: 10.3390/md13074006] [Citation(s) in RCA: 190] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/15/2015] [Accepted: 06/18/2015] [Indexed: 12/11/2022] Open
Abstract
Peptides are important bioactive natural products which are present in many marine species. These marine peptides have high potential nutraceutical and medicinal values because of their broad spectra of bioactivities. Their antimicrobial, antiviral, antitumor, antioxidative, cardioprotective (antihypertensive, antiatherosclerotic and anticoagulant), immunomodulatory, analgesic, anxiolytic anti-diabetic, appetite suppressing and neuroprotective activities have attracted the attention of the pharmaceutical industry, which attempts to design them for use in the treatment or prevention of various diseases. Some marine peptides or their derivatives have high commercial values and had reached the pharmaceutical and nutraceutical markets. A large number of them are already in different phases of the clinical and preclinical pipeline. This review highlights the recent research in marine peptides and the trends and prospects for the future, with special emphasis on nutraceutical and pharmaceutical development into marketed products.
Collapse
Affiliation(s)
- Randy Chi Fai Cheung
- School of Biomedical Sciences, Faculty of Medicine, the Chinese University of Hong Kong, Hong Kong, China.
| | - Tzi Bun Ng
- School of Biomedical Sciences, Faculty of Medicine, the Chinese University of Hong Kong, Hong Kong, China.
| | - Jack Ho Wong
- School of Biomedical Sciences, Faculty of Medicine, the Chinese University of Hong Kong, Hong Kong, China.
| |
Collapse
|