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Leyria J, Orchard I, Lange AB. Octopamine is required for successful reproduction in the classical insect model, Rhodnius prolixus. PLoS One 2024; 19:e0306611. [PMID: 38995904 PMCID: PMC11244822 DOI: 10.1371/journal.pone.0306611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024] Open
Abstract
In insects, biogenic amines function as neurotransmitters, neuromodulators, and neurohormones, influencing various behaviors, including those related to reproduction such as response to sex pheromones, oogenesis, oviposition, courtship, and mating. Octopamine (OA), an analog of the vertebrate norepinephrine, is synthesized from the biogenic amine tyramine by the enzyme tyramine β-hydroxylase (TβH). Here, we investigate the mechanisms and target genes underlying the role of OA in successful reproduction in females of Rhodnius prolixus, a vector of Chagas disease, by downregulating TβH mRNA expression (thereby reducing OA content) using RNA interference (RNAi), and in vivo and ex vivo application of OA. Injection of females with dsTβH impairs successful reproduction at least in part, by decreasing the transcript expression of enzymes involved in juvenile hormone biosynthesis, the primary hormone for oogenesis in R. prolixus, thereby interfering with oogenesis, ovulation and oviposition. This study offers valuable insights into the involvement of OA for successful reproduction in R. prolixus females. Understanding the reproductive biology of R. prolixus is crucial in a medical context for controlling the spread of the disease.
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Affiliation(s)
- Jimena Leyria
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada
| | - Ian Orchard
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada
| | - Angela B. Lange
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada
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2
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Ma X, Yin Z, Li H, Guo J. Roles of herbivorous insects salivary proteins. Heliyon 2024; 10:e29201. [PMID: 38601688 PMCID: PMC11004886 DOI: 10.1016/j.heliyon.2024.e29201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024] Open
Abstract
The intricate relationship between herbivorous insects and plants has evolved over millions of years, central to this dynamic interaction are salivary proteins (SPs), which mediate key processes ranging from nutrient acquisition to plant defense manipulation. SPs, sourced from salivary glands, intestinal regurgitation or acquired through horizontal gene transfer, exhibit remarkable functional versatility, influencing insect development, behavior, and adhesion mechanisms. Moreover, SPs play pivotal roles in modulating plant defenses, to induce or inhibit plant defenses as elicitors or effectors. In this review, we delve into the multifaceted roles of SPs in herbivorous insects, highlighting their diverse impacts on insect physiology and plant responses. Through a comprehensive exploration of SP functions, this review aims to deepen our understanding of plant-insect interactions and foster advancements in both fundamental research and practical applications in plant-insect interactions.
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Affiliation(s)
- Xinyi Ma
- Institute of Entomology, Guizhou University, Guiyang, 550025, PR China
- Scientific Observing and Experimental Station of Crop Pest in Guiyang, Ministry of Agriculture and Rural Affairs of the PR China, Guiyang, 550025, PR China
| | - Zhiyong Yin
- Institute of Entomology, Guizhou University, Guiyang, 550025, PR China
- Scientific Observing and Experimental Station of Crop Pest in Guiyang, Ministry of Agriculture and Rural Affairs of the PR China, Guiyang, 550025, PR China
| | - Haiyin Li
- Institute of Entomology, Guizhou University, Guiyang, 550025, PR China
- Scientific Observing and Experimental Station of Crop Pest in Guiyang, Ministry of Agriculture and Rural Affairs of the PR China, Guiyang, 550025, PR China
| | - Jianjun Guo
- Institute of Entomology, Guizhou University, Guiyang, 550025, PR China
- Scientific Observing and Experimental Station of Crop Pest in Guiyang, Ministry of Agriculture and Rural Affairs of the PR China, Guiyang, 550025, PR China
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3
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Wynants E, Van Dun C, Lenaerts N, Princen SA, Tuyttens E, Shpigler HY, Wenseleers T, Van Oystaeyen A. Uncovering the role of juvenile hormone in ovary development and egg laying in bumble bees. JOURNAL OF INSECT PHYSIOLOGY 2023; 150:104557. [PMID: 37625783 DOI: 10.1016/j.jinsphys.2023.104557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/18/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023]
Abstract
Juvenile hormone (JH) regulates developmental and physiological processes in insects. In bumble bees, the hormone acts as a gonadotropin that mediates ovary development, but the exact physiological pathways involved in ovary activation and subsequent egg laying are poorly understood. In this study, we examine how queen hibernation state, caste, and species impact the gonadotropic effect of JH in bumble bee queens through methoprene (JH analogue) application. We extend previous research by assessing queen egg laying and colony initiation, alongside ovary development. Furthermore, we compared sensitivity of workers of both species to the juvenile hormone's gonadotropic effect. In both bumble bee species, the ovaries of hibernated queens were developed five to six days after breaking diapause, regardless of methoprene treatment. By contrast, methoprene did have a stimulatory effect on ovary development in non-hibernated queens. The dose needed to obtain this effect was higher in B. impatiens. Methoprene did not have gonadotropic effects in callow workers of both species. These results indicate that the physiological effect of exogenous methoprene application varies according to species, caste and hibernation status. Interestingly, despite gonadotropic effects in non-hibernated queens, oviposition was not accelerated by JH. This suggests that JH alone is insufficient to induce egg laying and that an additional stimulus, which is naturally present in hibernated queens, is required. Consequently, our findings indicate that other physiological processes, beyond a rise in JH alone, are required for oviposition and colony initiation.
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Affiliation(s)
- Enya Wynants
- Biobest Group NV, Research and Development, 2260 Westerlo, Belgium
| | - Cédric Van Dun
- Laboratory of Socio-ecology and Social Evolution, University of Leuven, 3000 Leuven, Belgium
| | - Nancy Lenaerts
- Biobest Group NV, Research and Development, 2260 Westerlo, Belgium
| | - Sarah A Princen
- Biobest Group NV, Research and Development, 2260 Westerlo, Belgium
| | - Ella Tuyttens
- Biobest Group NV, Research and Development, 2260 Westerlo, Belgium
| | - Hagai Y Shpigler
- Department of Entomology, Agricultural Research Organization, The Volcani Institute, Rishon LeZion, Israel
| | - Tom Wenseleers
- Laboratory of Socio-ecology and Social Evolution, University of Leuven, 3000 Leuven, Belgium
| | - Annette Van Oystaeyen
- Biobest Group NV, Research and Development, 2260 Westerlo, Belgium; Laboratory of Socio-ecology and Social Evolution, University of Leuven, 3000 Leuven, Belgium.
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Omufwoko KS, Cronin AL, Nguyen TTH, Webb AE, Traniello IM, Kocher SD. Developmental transcriptomes predict adult social behaviors in the socially flexible sweat bee, Lasioglossum baleicum. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.14.553238. [PMID: 37645955 PMCID: PMC10462039 DOI: 10.1101/2023.08.14.553238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Natural variation can provide important insights into the genetic and environmental factors that shape social behavior and its evolution. The sweat bee, Lasioglossum baleicum , is a socially flexible bee capable of producing both solitary and eusocial nests. We demonstrate that within a single nesting aggregation, soil temperatures are a strong predictor of the social structure of nests. Sites with warmer temperatures in the spring have a higher frequency of social nests than cooler sites, perhaps because warmer temperatures provide a longer reproductive window for those nests. To identify the molecular correlates of this behavioral variation, we generated a de novo genome assembly for L. baleicum , and we used transcriptomic profiling to compare adults and developing offspring from eusocial and solitary nests. We find that adult, reproductive females have similar expression profiles regardless of social structure in the nest, but that there are strong differences between reproductive females and workers from social nests. We also find substantial differences in the transcriptomic profiles of stage-matched pupae from warmer, social-biased sites compared to cooler, solitary-biased sites. These transcriptional differences are strongly predictive of adult reproductive state, suggesting that the developmental environment may set the stage for adult behaviors in L. baleicum . Together, our results help to characterize the molecular mechanisms shaping variation in social behavior and highlight a potential role of environmental tuning during development as a factor shaping adult behavior and physiology in this socially flexible bee.
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Cressman A, Amsalem E. Impacts and mechanisms of CO2 narcosis in bumble bees: narcosis depends on dose, caste and mating status and is not induced by anoxia. J Exp Biol 2023; 226:286149. [PMID: 36541091 DOI: 10.1242/jeb.244746] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022]
Abstract
Carbon dioxide (CO2) is commonly used to immobilize insects and to induce reproduction in bees. However, despite its wide use and potential off-target impacts, its underlying mechanisms are not fully understood. Here, we used Bombus impatiens to examine whether CO2 impacts are mediated by anoxia and whether these mechanisms differ between female castes or following mating in queens. We examined the behavior, physiology and gene expression of workers, mated queens and virgin queens following exposure to anoxia, hypoxia, full and partial hypercapnia, and controls. Hypercapnia and anoxia caused immobilization, but only hypercapnia resulted in behavioral, physiological and molecular impacts in bees. Recovery from hypercapnia resulted in increased abdominal contractions and took longer in queens. Additionally, hypercapnia activated the ovaries of queens, but inhibited those of workers in a dose-dependent manner and caused a depletion of fat-body lipids in both castes. All responses to hypercapnia were weaker following mating in queens. Analysis of gene expression related to hypoxia and hypercapnia supported the physiological findings in queens, demonstrating that the overall impacts of CO2, excluding virgin queen ovaries, were unique and were not induced by anoxia. This study contributes to our understanding of the impacts and the mechanistic basis of CO2 narcosis in insects and its impacts on bee physiology. This article has an associated ECR Spotlight interview with Anna Cressman.
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Affiliation(s)
- Anna Cressman
- Department of Entomology, Center for Chemical Ecology, Center for Pollination Research, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802, USA
| | - Etya Amsalem
- Department of Entomology, Center for Chemical Ecology, Center for Pollination Research, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA 16802, USA
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Brent CS, Heu CC, Gross RJ, Fan B, Langhorst D, Hull JJ. RNAi-Mediated Manipulation of Cuticle Coloration Genes in Lygus hesperus Knight (Hemiptera: Miridae). INSECTS 2022; 13:986. [PMID: 36354810 PMCID: PMC9698757 DOI: 10.3390/insects13110986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Cuticle coloration in insects is a consequence of the accumulation of pigments in a species-specific pattern. Numerous genes are involved in regulating the underlying processes of melanization and sclerotization, and their manipulation can be used to create externally visible markers of successful gene editing. To clarify the roles for many of these genes and examine their suitability as phenotypic markers in Lygus hesperus Knight (western tarnished plant bug), transcriptomic data were screened for sequences exhibiting homology with the Drosophila melanogaster proteins. Complete open reading frames encoding putative homologs for six genes (aaNAT, black, ebony, pale, tan, and yellow) were identified, with two variants for black. Sequence and phylogenetic analyses supported preliminary annotations as cuticle pigmentation genes. In accord with observable difference in color patterning, expression varied for each gene by developmental stage, adult age, body part, and sex. Knockdown by injection of dsRNA for each gene produced varied effects in adults, ranging from the non-detectable (black 1, yellow), to moderate decreases (pale, tan) and increases (black 2, ebony) in darkness, to extreme melanization (aaNAT). Based solely on its expression profile and highly visible phenotype, aaNAT appears to be the best marker for tracking transgenic L. hesperus.
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Chen W, Chen Y, Xiao Z, Zhang Y, Zhang T, Zhong G, Yi X. The modulatory effects of biogenic amines on male mating performance in Bactrocera dorsalis. Front Physiol 2022; 13:1000547. [PMID: 36148306 PMCID: PMC9486026 DOI: 10.3389/fphys.2022.1000547] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/15/2022] [Indexed: 12/04/2022] Open
Abstract
In insects, the emergence of mating behavior requires the interplay among sex-determination hierarchy mechanisms that regulate sex-specific differentiation, perception and integration of different sensory cues, and precisely patterned behavioral outputs. Biogenic amines, including octopamine (OA), dopamine (DA), tyramine (TA), serotonin and histamine, have been identified and proposed as putative neurotransmitters, neurohormones and/or neuromodulators in the central nervous system of insects to influence multiple physiologies and behaviors. The current study provides the physiological roles and pharmacology of these biogenic amines in the mating performance of Bactrocera dorsalis. Silencing gene expressions coding for biosynthetic enzymes of DA and serotonin in male flies could decrease mating rates, while OA, TA and histamine had no such effects on mating. Furthermore, injection of DA or the DA receptor antagonist chlorpromazine could affect mating rate, as well as injection of serotonin. Pharmacological treatments with other biogenic amines or their receptor antagonists in male flies have no roles in regulating mating performance. We conclude that DA and its receptors are involved in regulating male mating behaviors in B. dorsalis, while changes in serotonin levels in male flies could also affect mating rates. In the current study, the modulatory effects of these biogenic amines on mating performance were investigated, and these results will be helpful in providing a new strategy for controlling B. dorsalis.
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Affiliation(s)
- Wenlong Chen
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Yaoyao Chen
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Ziwei Xiao
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Yuhua Zhang
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
| | - Tong Zhang
- Guangdong Province Key Laboratory of Microbial Signals and Disease Control, College of Plant Protection, South China Agricultural University, Guangzhou, China
| | - Guohua Zhong
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
- *Correspondence: Guohua Zhong, ; Xin Yi,
| | - Xin Yi
- Key Laboratory of Crop Integrated Pest Management in South China, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China
- *Correspondence: Guohua Zhong, ; Xin Yi,
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8
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Takahata Y, Miyakawa H. Developmental Staging of Sexual Egg Formation in Daphnia pulex: Unmated Females Resorb Meiotic Oocytes to Resist Starvation. Zoolog Sci 2022; 39:407-412. [DOI: 10.2108/zs220010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 05/18/2022] [Indexed: 11/17/2022]
Affiliation(s)
- Yugo Takahata
- Center for Bioscience Research and Education, Utsunomiya University, 350 Mine-machi, Utsunomiya, Tochigi 321-8505, Japan
| | - Hitoshi Miyakawa
- Center for Bioscience Research and Education, Utsunomiya University, 350 Mine-machi, Utsunomiya, Tochigi 321-8505, Japan
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9
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Liu D, Zhang X, Chiqin F, Nyamwasa I, Cao Y, Yin J, Zhang S, Feng H, Li K. Octopamine modulates insect mating and Oviposition. J Chem Ecol 2022; 48:628-640. [PMID: 35687218 DOI: 10.1007/s10886-022-01366-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 05/10/2022] [Accepted: 05/16/2022] [Indexed: 01/18/2023]
Abstract
The neuro-mechanisms that regulate insect reproduction are not fully understood. Biogenic amines, including octopamine, are neuromodulators that have been shown to modulate insect reproduction in various ways, e.g., promote or inhibit insect mating or oviposition. In this study, we examined the role of octopamine in regulating the reproduction behaviors of a devastating underground insect pest, the dark black chafer (Holotrichia parallela). We first measured the abundance of octopamine in different neural tissues of the adult chafer pre- and post-mating, demonstrating that octopamine decreased in the abdominal ganglia of females but increased in males post-mating. We then fed the adult H. parallela with a concentration gradient of octopamine to test the effects on insect reproductive behaviors. Compared with its antagonist mianserin, octopamine at the concentration of 2 µg/mL resulted in the highest increase in males' preference for sex pheromone and females' oviposition, whereas the mianserin-treatment increased the survival rate and prolonged the lifespan of H. parallela. In addition, we did not observe significant differences in egg hatchability between octopamine and mianserin-treated H. parallela. Our results demonstrated that octopamine promotes H. parallela mating and oviposition with a clear low dosage effect, illustrated how neural substrates modulate insect behaviors, and provided insights for applying octopamine in pest management.
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Affiliation(s)
- Dandan Liu
- State Key Laboratory for Biology, Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 100193, Beijing, China
| | - Xinxin Zhang
- Northeast Agricultural University, 150030, Harbin, Heilongjiang, China
| | - Fang Chiqin
- State Key Laboratory for Biology, Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 100193, Beijing, China
| | - Innocent Nyamwasa
- State Key Laboratory for Biology, Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 100193, Beijing, China
| | - Yazhong Cao
- State Key Laboratory for Biology, Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 100193, Beijing, China
| | - Jiao Yin
- State Key Laboratory for Biology, Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 100193, Beijing, China
| | - Shuai Zhang
- State Key Laboratory for Biology, Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 100193, Beijing, China
| | - Honglin Feng
- Boyce Thompson Institute, 14853, Ithaca, NewYork, USA.
| | - Kebin Li
- State Key Laboratory for Biology, Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 100193, Beijing, China.
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Sisterson MS, Brent CS. Nutritional and Physiological Regulation of Glassy-Winged Sharpshooter Oogenesis. JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:526-538. [PMID: 35024833 DOI: 10.1093/jee/toab260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Indexed: 06/14/2023]
Abstract
The glassy-winged sharpshooter (Homalodisca vitripennis (Germar); Hemiptera: Cicadellidae: Cicadellinae) is an invasive insect that transmits the plant pathogenic bacterium Xylella fastidiosa Wells et al. (Xanthomonadales: Xanthomonadacae). While adult glassy-winged sharpshooter must feed to produce eggs, the role of nutritional status on initiating oogenesis is poorly understood. To determine the effects of glassy-winged sharpshooter nutrition on nymphal development, oogenesis, and fecundity, glassy-winged sharpshooter were reared on cowpea, sunflower, sorghum, and a mixture of the three plant species. Adults emerging from cowpea, sunflower, or plant mixture treatments had shorter development times, attained larger size, and had greater estimated lipid reserves than females reared on sorghum. In choice tests, nymphs avoided sorghum and preferentially fed on cowpea and sunflower. Adult females provisioned with a single plant species during the nymphal stage were provided with either the same host plant species or a mixture of host plant species (cowpea, sunflower, sorghum) for a 9-wk oviposition period, with 37% of females initiating oogenesis. Ovipositing females had greater juvenile hormone and octopamine levels than reproductively inactive females, although topical application of the juvenile hormone analog Methoprene did not promote oogenesis. Across nymphal diets, reproductively active females produced more eggs when held on plant mixtures than on single plant species. In choice tests, adult females were observed most frequently on cowpea, although most eggs were deposited on sorghum, the host least preferred by nymphs. Results suggest that fecundity is largely determined by the quality of the adult diet, although the stimulus that initiates oogenesis does not appear to be related to nutrition.
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Affiliation(s)
- Mark S Sisterson
- USDA, Agricultural Research Service, San Joaquin Valley Agricultural Sciences Center, 9611 South Riverbend Avenue, Parlier, CA 93648-9757, USA
| | - Colin S Brent
- USDA, Agricultural Research Service, Maricopa, AZ, USA
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11
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Lee KT, Su CH, Liu SC, Chen BC, Chang JW, Tsai CH, Huang WC, Hsu CJ, Chen WC, Wu YC, Tang CH. Cordycerebroside A inhibits ICAM-1-dependent M1 monocyte adhesion to osteoarthritis synovial fibroblasts. J Food Biochem 2022; 46:e14108. [PMID: 35165902 DOI: 10.1111/jfbc.14108] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 01/14/2022] [Accepted: 01/25/2022] [Indexed: 01/15/2023]
Abstract
Osteoarthritis (OA) is represented by the accumulation and adhesion of M1 macrophages into synovium tissues in the joint microenvironment and subsequent inflammatory response. Cordycerebroside A, a cerebroside compound isolated from Cordyceps militaris, exhibits anti-inflammatory activity, but has not yet been examined in M1 macrophages during OA disease. Our results indicate higher expression of M1 macrophage markers in synovium tissue from OA patients compared with normal healthy controls. Records from the Gene Expression Omnibus (GEO) data set and our clinic samples revealed higher levels of ICAM-1 (a critical adhesion molecule during OA disease) and CD86 (a M1 macrophage marker) in OA synovial tissue than in healthy tissue. The same effects were found in rats with OA induced by anterior cruciate ligament transaction (ACLT). We also found that cordycerebroside A inhibited ICAM-1 synthesis and antagonized M1 macrophage adhesion to OA synovial fibroblasts by inhibiting the ERK/AP-1 pathway. Thus, cordycerebroside A displayed novel anti-arthritic effects. PRACTICAL APPLICATIONS: Here we report a higher level of M1 macrophage markers and ICAM-1 in synovium tissue from OA patients compared with normal healthy controls by using GEO data set and our clinic samples. The same effects were revealed in rats with OA induced by ACLT. Cordycerebroside A significantly suppressed ICAM-1 production and diminished M1 macrophage adhesion to OA synovial fibroblasts. Therefore, cordycerebroside A exhibited novel anti-OA functions.
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Affiliation(s)
- Kun-Tsan Lee
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung-Hsing University, Taichung, Taiwan.,Department of Orthopedics, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Chin-Horng Su
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan.,Department of Orthopedics, Yuan-Lin Christian Hospital, Changhua, Taiwan
| | - Shan-Chi Liu
- Department of Medical Education and Research, China Medical University Beigang Hospital, Yunlin, Taiwan
| | - Bo-Cheng Chen
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
| | - Jun-Way Chang
- The Ph.D. Program of Biotechnology and Biomedical Industry, China Medical University, Taichung, Taiwan
| | - Chun-Hao Tsai
- Department of Sports Medicine, College of Health Care, China Medical University, Taichung, Taiwan.,Department of Orthopedic Surgery, China Medical University Hospital, Taichung, Taiwan
| | - Wei-Chien Huang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan.,Drug Development Center, China Medical University, Taichung, Taiwan
| | - Chin-Jung Hsu
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung, Taiwan.,School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Wei-Cheng Chen
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan.,Division of Sports Medicine & Surgery, Department of Orthopedic Surgery, MacKay Memorial Hospital, Taipei, Taiwan
| | - Yang-Chang Wu
- Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan.,Chinese Medicine Research and Development Center, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Chih-Hsin Tang
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan.,Department of Biotechnology, College of Health Science, Asia University, Taichung, Taiwan.,Chinese Medicine Research Center, China Medical University, Taichung, Taiwan
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12
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Sex-Specific Regulatory Systems for Dopamine Production in the Honey Bee. INSECTS 2022; 13:insects13020128. [PMID: 35206702 PMCID: PMC8878259 DOI: 10.3390/insects13020128] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/20/2022] [Accepted: 01/24/2022] [Indexed: 11/26/2022]
Abstract
Simple Summary In this review, we describe sex-specific differences in the regulatory systems for dopamine production in the brains of social insects, focusing on the honey bee. Dopamine has a crucial role in the promotion of reproduction in both sexes of the honey bee and is a key substance for understanding the mechanisms underlying the reproductive division of labor in females. Studies associated with dopamine regulation have been performed mainly in females, with less of a focus on its regulation in males. In social insects, males are specialized for reproduction and do not exhibit division of labor; however, they have evolved to adapt their social system and have acquired/discarded physiological and behavioral characteristics. Therefore, studies exploring the dopaminergic system in males can contribute to our understanding of social adaptation in males. We integrate findings related to dopamine in both honey bee sexes and provide insights into the physiology involved in dopaminergic systems in social insects. Abstract Dopamine has multiple functions in the modulation of social behavior and promotion of reproduction in eusocial Hymenoptera. In the honey bee, there are sex-specific differences in the regulation of dopamine production in the brain. These different dopaminergic systems might contribute to the maintenance of sex-specific behaviors and physiology. However, it is still not fully understood how the dopaminergic system in the brain is regulated by endocrinal factors and social stimuli in the colony. In this review, we focus on the regulation of dopamine production in queens, workers, and males in the honey bee. Dopamine production can be controlled by queen substance, juvenile hormone, and exogenous tyrosine from food. Queens can control dopamine production in workers via queen substance, whereas workers can manipulate the supply of tyrosine, a precursor of dopamine, to queens and males. The regulation of dopamine production through social interaction might affect the reproductive states of colony members and maintain sex-specific behaviors in unpredictable environments.
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13
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Lee HP, Liu SC, Wang YH, Chen BC, Chen HT, Li TM, Huang WC, Hsu CJ, Wu YC, Tang CH. Cordycerebroside A suppresses VCAM-dependent monocyte adhesion in osteoarthritis synovial fibroblasts by inhibiting MEK/ERK/AP-1 signaling. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104712] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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14
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Ahmad S, Chen Y, Zhang J, Stanley D, Song Q, Ge L. Octopamine signaling is involved in the female postmating state in Nilaparvata lugens Stål (Hemiptera: Delphacidae). ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2021; 107:e21825. [PMID: 34164848 DOI: 10.1002/arch.21825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/30/2021] [Accepted: 05/30/2021] [Indexed: 06/13/2023]
Abstract
Mating triggers physiological and behavioral changes in female insects. In many species, females experience postmating behavioral and physiological changes that define a post-mated state. These changes are comprised of several conditions, including long-term refractoriness to re-mating and increased production and laying of eggs. Here, we report that mating led to several changes in brown planthopper (BPH) females, including increased octopamine (OA), cAMP concentrations, and activities of several enzymes. Mating also led to changes in the expression of several genes acting in female physiology, including those in the cAMP/PKA signal transduction pathway. OA injections into virgin females led to similar changes. RNAi silencing of the gene encoding tyramine β-hydroxylase, involved in the final step in OA synthesis, led to decreased expression of these genes, and reduced the cAMP/PKA signaling. At the whole-organism level, the RNAi treatments led to reduced fecundity, body weights, and longevity. RNAi silencing of genes acting in OA signaling led to truncated ovarian development, egg maturation, and ovarian vitellogenin (Vg) uptake. The impact of these decreases is also registered at the population level, seen as decreased population growth. We infer that OA signaling modulates the postmating state in female BPH and possibly other hemipterans.
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Affiliation(s)
- Sheraz Ahmad
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
| | - Yu Chen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
| | - Jieyu Zhang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
| | - David Stanley
- Biological Control of Insects Research Laboratory, USDA/Agricultural Research Service, Columbia, Missouri, USA
| | - Qisheng Song
- Division of Plant Sciences, University of Missouri, Columbia, Missouri, USA
| | - Linquan Ge
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, China
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15
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Watanabe T, Sasaki K. Regulation of dopamine production in the brains during sexual maturation in male honey bees. JOURNAL OF INSECT PHYSIOLOGY 2021; 132:104270. [PMID: 34175313 DOI: 10.1016/j.jinsphys.2021.104270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 05/30/2021] [Accepted: 06/21/2021] [Indexed: 06/13/2023]
Abstract
To explore the physiological mechanisms that underlie age-related dopamine increases during sexual maturation in the brains of male honey bees, we focused on the expression of genes encoding the enzymes tyrosine hydroxylase (Amth) and DOPA decarboxylase (Amddc), which are involved in dopamine biosynthesis in the brain. We hypothesized that juvenile hormone in hemolymph and tyrosine intake from food known as factors enhancing brain dopamine levels might both control the expression of genes related to dopamine production, and we tested this hypothesis in experiments. The brain levels of tyrosine and DOPA, which are precursors of dopamine, decreased as males aged, whereas the dopamine levels increased, suggesting active metabolism of dopamine precursors. The relative expression levels of Amth and Amddc were significantly higher in the brains of 4-day-old males compared with 0-day-old males, and the higher level of Amddc was maintained after 8 days. Topical application of the juvenile hormone analog methoprene enhanced the expression levels of Amth and Amddc in the brains according to the methoprene concentration. Oral intake of tyrosine enhanced the tyrosine, DOPA and dopamine levels in the brain, and activated Amddc expression in the brain, suggesting that tyrosine intake can increase both substrates and enzyme for dopamine biosynthesis. These results support our hypothesis that juvenile hormone and tyrosine intake may enhance the expression levels of genes encoding enzymes involved in dopamine biosynthesis in male honey bee brains during sexual maturation.
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Affiliation(s)
- Tomohiro Watanabe
- Graduate School of Agriculture, Tamagawa University, Machida, Tokyo 194-8610, Japan
| | - Ken Sasaki
- Graduate School of Agriculture, Tamagawa University, Machida, Tokyo 194-8610, Japan.
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16
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Sasaki K, Okada Y, Shimoji H, Aonuma H, Miura T, Tsuji K. Social Evolution With Decoupling of Multiple Roles of Biogenic Amines Into Different Phenotypes in Hymenoptera. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.659160] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Convergent evolution of eusociality with the division of reproduction and its plastic transition in Hymenoptera has long attracted the attention of researchers. To explain the evolutionary scenario of the reproductive division of labor, several hypotheses had been proposed. Among these, we focus on the most basic concepts, i.e., the ovarian ground plan hypothesis (OGPH) and the split-function hypothesis (SFH). The OGPH assumes the physiological decoupling of ovarian cycles and behavior into reproductive and non-reproductive individuals, whereas the SFH assumes that the ancestral reproductive function of juvenile hormone (JH) became split into a dual function. Here, we review recent progress in the understanding of the neurohormonal regulation of reproduction and social behavior in eusocial hymenopterans, with an emphasis on biogenic amines. Biogenic amines are key substances involved in the switching of reproductive physiology and modulation of social behaviors. Dopamine has a pivotal role in the formation of reproductive skew irrespective of the social system, whereas octopamine and serotonin contribute largely to non-reproductive social behaviors. These decoupling roles of biogenic amines are seen in the life cycle of a single female in a solitary species, supporting OGPH. JH promotes reproduction with dopamine function in primitively eusocial species, whereas it regulates non-reproductive social behaviors with octopamine function in advanced eusocial species. The signal transduction networks between JH and the biogenic amines have been rewired in advanced eusocial species, which could regulate reproduction in response to various social stimuli independently of JH action.
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17
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White MA, Chen DS, Wolfner MF. She's got nerve: roles of octopamine in insect female reproduction. J Neurogenet 2021; 35:132-153. [PMID: 33909537 DOI: 10.1080/01677063.2020.1868457] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The biogenic monoamine octopamine (OA) is a crucial regulator of invertebrate physiology and behavior. Since its discovery in the 1950s in octopus salivary glands, OA has been implicated in many biological processes among diverse invertebrate lineages. It can act as a neurotransmitter, neuromodulator and neurohormone in a variety of biological contexts, and can mediate processes including feeding, sleep, locomotion, flight, learning, memory, and aggression. Here, we focus on the roles of OA in female reproduction in insects. OA is produced in the octopaminergic neurons that innervate the female reproductive tract (RT). It exerts its effects by binding to receptors throughout the RT to generate tissue- and region-specific outcomes. OA signaling regulates oogenesis, ovulation, sperm storage, and reproductive behaviors in response to the female's internal state and external conditions. Mating profoundly changes a female's physiology and behavior. The female's OA signaling system interacts with, and is modified by, male molecules transferred during mating to elicit a subset of the post-mating changes. Since the role of OA in female reproduction is best characterized in the fruit fly Drosophila melanogaster, we focus our discussion on this species but include discussion of OA in other insect species whenever relevant. We conclude by proposing areas for future research to further the understanding of OA's involvement in female reproduction in insects.
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Affiliation(s)
- Melissa A White
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA
| | - Dawn S Chen
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA
| | - Mariana F Wolfner
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA
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18
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Lee HP, Wu YC, Chen BC, Liu SC, Li TM, Huang WC, Hsu CJ, Tang CH. Soya-cerebroside reduces interleukin production in human rheumatoid arthritis synovial fibroblasts by inhibiting the ERK, NF-κB and AP-1 signalling pathways. FOOD AGR IMMUNOL 2020. [DOI: 10.1080/09540105.2020.1766426] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Hsiang-Ping Lee
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Yang-Chang Wu
- Chinese Medicine Research and Development Center, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
- The Biotechnology Department, College of Medical and Health Science, Asia University, Taichung, Taiwan
| | - Bo-Cheng Chen
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
| | - Shan-Chi Liu
- Department of Medical Education and Research, China Medical University Beigang Hospital, Yunlin, Taiwan
| | - Te-Mao Li
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Wei-Chien Huang
- The Biotechnology Department, College of Medical and Health Science, Asia University, Taichung, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Drug Development Center, China Medical University, Taichung, Taiwan
- Center for Molecular Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chin-Jung Hsu
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung, Taiwan
| | - Chih-Hsin Tang
- The Biotechnology Department, College of Medical and Health Science, Asia University, Taichung, Taiwan
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Chinese Medicine Research Center, China Medical University, Taichung, Taiwan
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19
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Akula R, Mukherjee S. New insights on neurotransmitters signaling mechanisms in plants. PLANT SIGNALING & BEHAVIOR 2020; 15:1737450. [PMID: 32375557 PMCID: PMC8570756 DOI: 10.1080/15592324.2020.1737450] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/23/2020] [Accepted: 02/25/2020] [Indexed: 05/31/2023]
Abstract
Neurotransmitters (NTs) such as acetylcholine, biogenic amines (dopamine, noradrenaline, adrenaline, histamine), indoleamines [(melatonin (MEL) & serotonin (SER)] have been found not only in mammalians, but also in diverse living organisms-microorganisms to plants. These NTs have emerged as potential signaling molecules in the last decade of investigations in various plant systems. NTs have been found to play important roles in plant life including-organogenesis, flowering, ion permeability, photosynthesis, circadian rhythm, reproduction, fruit ripening, photomorphogenesis, adaptation to environmental changes. This review will provide an overview of recent advancements on the physiological and molecular mechanism of NTs in plants. Moreover, molecular crosstalk of SER and MEL with various biomolecules is also discussed. The study of these NTs may serve as new understanding of the mechanisms of signal transmission and cell sensing in plants subjected to various environmental stimulus.
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Affiliation(s)
- Ramakrishna Akula
- Bayer Crop Science division, Vegetable R & D Department, Chikkaballapur, India
| | - Soumya Mukherjee
- Department of Botany, Jangipur College, University of Kalyani, Kalyani, India
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20
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Li F, Li K, Wu LJ, Fan YL, Liu TX. Role of Biogenic Amines in Oviposition by the Diamondback Moth, Plutella xylostella L. Front Physiol 2020; 11:475. [PMID: 32528307 PMCID: PMC7247421 DOI: 10.3389/fphys.2020.00475] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 04/17/2020] [Indexed: 11/13/2022] Open
Abstract
Oviposition is an important reproductive behavior that is triggered by mating in insects, and biogenic amines might be involved in its regulation. The effects of biogenic amines on oviposition have only been studied in a few insect species, and the findings to date have not been conclusive. In addition, there are few studies on the effects of biogenic amines on oviposition of the diamondback moth, Plutella xylostella L. Here, we tested how mating and biogenic amines regulate oviposition of P. xylostella by injecting amines and amine receptor antagonists into virgin and mated females and counting the number of eggs laid afterward. Biogenic amines of octopamine and tyramine could induce virgin adults of P. xylostella to lay eggs, while dopamine and serotonin had no such effect on oviposition. Furthermore, the octopamine antagonists mianserin, epinastine, and phentolamine inhibited oviposition by mated females. The tyramine antagonist yohimbine, dopamine antagonist SCH23390, and serotonin antagonist ketanserin did not block oviposition by mated females, and octopamine and tyramine-inducing oviposition by virgin females could be inhibited by the octopamine antagonists mianserin and epinastine instead of the tyramine antagonist yohimbine. We conclude that octopamine and its receptors are involved in mating-triggered oviposition in P. xylostella, while tyramine acts as a subsidiary. Further, the inducing effect of tyramine on oviposition is achieved via octopamine receptors instead of tyramine receptors. This experiment is helpful to further understand the role of biogenic amines in mating regulation and to provide a new strategy for controlling P. xylostella.
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Affiliation(s)
- Fan Li
- State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Ke Li
- State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Li-Juan Wu
- State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Yong-Liang Fan
- State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Tong-Xian Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and Key Laboratory of Integrated Pest Management on Crops in Northwestern Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
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21
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Lee HP, Wang SW, Wu YC, Lin LW, Tsai FJ, Yang JS, Li TM, Tang CH. Soya-cerebroside inhibits VEGF-facilitated angiogenesis in endothelial progenitor cells. FOOD AGR IMMUNOL 2020. [DOI: 10.1080/09540105.2020.1713055] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Hsiang-Ping Lee
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Shih-Wei Wang
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yang-Chang Wu
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan
| | - Liang-Wei Lin
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
| | - Fuu-Jen Tsai
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- China Medical University Children’s Hospital, China Medical University, Taichung, Taiwan
| | - Jai-Sing Yang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Te-Mao Li
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Chih-Hsin Tang
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
- Chinese Medicine Research Center, China Medical University, Taichung, Taiwan
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
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22
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Lee HP, Wang SW, Wu YC, Tsai CH, Tsai FJ, Chung JG, Huang CY, Yang JS, Hsu YM, Yin MC, Li TM, Tang CH. Glucocerebroside reduces endothelial progenitor cell-induced angiogenesis. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2019.1660623] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Hsiang-Ping Lee
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Shih-Wei Wang
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yang-Chang Wu
- Graduate Institute of Natural Products and Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chang-Hai Tsai
- China Medical University Children’s Hospital, China Medical University, Taichung, Taiwan
- Department of Healthcare Administration, Asia University, Taichung, Taiwan
| | - Fuu-Jen Tsai
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- China Medical University Children’s Hospital, China Medical University, Taichung, Taiwan
| | - Jing-Gung Chung
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Chih-Yang Huang
- Department of Biotechnology, Asia University, Taichung, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
| | - Jai-Sing Yang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Yuan-Man Hsu
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Mei-Chin Yin
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Department of Food Nutrition and Health Biotechnology, Asia University, Taichung, Taiwan
| | - Te-Mao Li
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Chih-Hsin Tang
- Department of Biotechnology, Asia University, Taichung, Taiwan
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
- Chinese Medicine Research Center, China Medical University, Taichung, Taiwan
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23
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Liu SC, Tsai CH, Wu TY, Tsai CH, Tsai FJ, Chung JG, Huang CY, Yang JS, Hsu YM, Yin MC, Wu YC, Tang CH. Soya-cerebroside reduces IL-1β-induced MMP-1 production in chondrocytes and inhibits cartilage degradation: implications for the treatment of osteoarthritis. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2019.1611745] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Shan-Chi Liu
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
- Department of Medical Education and Research, China Medical University Beigang Hospital, Yunlin, Taiwan
| | - Chun-Hao Tsai
- School of Medicine, China Medical University, Taichung, Taiwan
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung, Taiwan
| | - Tung-Ying Wu
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chang-Hai Tsai
- China Medical University Children's Hospital, China Medical University, Taichung, Taiwan
- Department of Healthcare Administration, Asia University, Taichung, Taiwan
| | - Fuu-Jen Tsai
- China Medical University Children's Hospital, China Medical University, Taichung, Taiwan
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Jing-Gung Chung
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Chih-Yang Huang
- Department of Biotechnology, Asia University, Taichung, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
| | - Jai-Sing Yang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Yuan-Man Hsu
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Mei-Chin Yin
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Department of Food Nutrition and Health Biotechnology, Asia University, Taichung, Taiwan
| | - Yang-Chang Wu
- Graduate Institute of Natural Products and Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chih-Hsin Tang
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Chinese Medicine Research Center, China Medical University, Taichung, Taiwan
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24
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Finkelstein AB, Brent CS, Giurfa M, Amdam GV. Foraging Experiences Durably Modulate Honey Bees' Sucrose Responsiveness and Antennal Lobe Biogenic Amine Levels. Sci Rep 2019; 9:5393. [PMID: 30931967 PMCID: PMC6443788 DOI: 10.1038/s41598-019-41624-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 03/13/2019] [Indexed: 11/10/2022] Open
Abstract
Foraging exposes organisms to rewarding and aversive events, providing a selective advantage for maximizing the former while minimizing the latter. Honey bees (Apis mellifera) associate environmental stimuli with appetitive or aversive experiences, forming preferences for scents, locations, and visual cues. Preference formation is influenced by inter-individual variation in sensitivity to rewarding and aversive stimuli, which can be modulated by pharmacological manipulation of biogenic amines. We propose that foraging experiences act on biogenic amine pathways to induce enduring changes to stimulus responsiveness. To simulate varied foraging conditions, freely-moving bees were housed in cages where feeders offered combinations of sucrose solution, floral scents, and aversive electric shock. Transient effects were excluded by providing bees with neutral conditions for three days prior to all subsequent assays. Sucrose responsiveness was reduced in bees that had foraged for scented rather than unscented sucrose under benign conditions. This was not the case under aversive foraging conditions, suggesting an adaptive tuning process which maximizes preference for high quality, non-aversive floral sites. Foraging conditions also influenced antennal lobe octopamine and serotonin, neuromodulators involved in stimulus responsiveness and foraging site evaluation. Our results suggest that individuals’ foraging experiences durably modify neurochemistry and shape future foraging behaviour.
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Affiliation(s)
| | - Colin S Brent
- United States Department of Agriculture, Arid Land Agricultural Research Center, Maricopa, USA
| | - Martin Giurfa
- Research Centre on Animal Cognition, Center for Integrative Biology, CNRS, University of Toulouse, 118 route de Narbonne, F-31062, Toulouse, Cedex 09, France
| | - Gro V Amdam
- School of Life Sciences, Arizona State University, Tempe, USA.,Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Aas, Norway
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25
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Tsvetkov N, Cook CN, Zayed A. Effects of group size on learning and memory in the honey bee, Apis mellifera. J Exp Biol 2019; 222:jeb.193888. [DOI: 10.1242/jeb.193888] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 04/12/2019] [Indexed: 11/20/2022]
Abstract
In animals that experience interactions with conspecifics while young, social interactions appear to be a necessary prerequisite for typical behaviour. Eusocial insects have large colonies where individuals experience a great deal of social interactions with nest mates during all life stages, making them excellent candidates for understanding the effects of social isolation on brain development and behaviour. Here we used the honey bee Apis mellifera to study the effect of social isolation and group size on reward perception and discrimination learning and memory. We confined day old adult workers into three different size groups (1 bee, 8 or 32 bees) for six days during a critical period associated with adult behavioural maturation. We quantified their sucrose responsiveness, their ability to use and remember olfactory cues to discriminate between sucrose and salt (i.e. discrimination learning), and four biogenic amines in the brain. We found that the smaller the group size, the more responsive a worker was to the sucrose reward. Honey bees raised in groups of 32 performed the best in the learning trials and had the highest levels of dopamine. We found no effect of group size on memory. The observed group size effect on learning but not memory supports the hypothesis that social interactions modulate learning through the dopaminergic system.
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Affiliation(s)
- Nadejda Tsvetkov
- Biology Department, York University, 4700 Keele Street, Toronto, M3J 1P3, Ontario, Canada
| | - Chelsea N. Cook
- School of Life Sciences, Arizona State University, 427 E Tyler Mall #320, Tempe, AZ 85281, USA
| | - Amro Zayed
- Biology Department, York University, 4700 Keele Street, Toronto, M3J 1P3, Ontario, Canada
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26
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Sasaki K, Ugajin A, Harano KI. Caste-specific development of the dopaminergic system during metamorphosis in female honey bees. PLoS One 2018; 13:e0206624. [PMID: 30372493 PMCID: PMC6205643 DOI: 10.1371/journal.pone.0206624] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 10/16/2018] [Indexed: 01/02/2023] Open
Abstract
Caste-specific differences in the dopaminergic systems of social insects assist in maintaining caste-specific behavior. To determine how caste differences in the honey bee occur during metamorphosis, a number of comparative analyses between castes were performed including comprehensive quantification of: levels of dopamine and its metabolite in the brain, the gene expression levels of enzymes involved in dopamine biosynthesis and conversion as well as expression levels of dopamine receptors and a dopamine transporter. Dopamine levels standardized to the protein contents of a whole brain at the day of eclosion in queens were 3.6-fold higher than those in workers. Dopamine levels increased until eclosion (7 days) in queens, whereas those in workers increased until 5–6 days before eclosion and then maintained until eclosion (10 days). These caste-specific dopamine dynamics in the brain were supported by the higher expression of genes (Amddc and Amth) encoding enzymes involved in dopamine synthesis in queens. The distribution of cells expressing Amddc in the brain revealed that soma clusters of dopaminergic cells were similar between castes at 7–8 days after pupation, suggesting the upregulation of Amddc expression in some cells in queens rather than addition of cell clusters. In contrast, genes encoding dopamine receptors were downregulated in queens or showed similar expression levels between castes. The expression of genes encoding dopamine transporters did not differ between castes. These results reveal the developmental process of caste-specific dopaminergic systems during metamorphosis in the honey bee, suggesting caste-specific behavior and division of reproduction in this highly eusocial species.
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Affiliation(s)
- Ken Sasaki
- Graduate School of Agriculture, Tamagawa University, Machida, Tokyo, Japan
- * E-mail:
| | - Atsushi Ugajin
- Graduate School of Agriculture, Tamagawa University, Machida, Tokyo, Japan
| | - Ken-ichi Harano
- Graduate School of Agriculture, Tamagawa University, Machida, Tokyo, Japan
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27
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Altered immunity in crowded Mythimna separata is mediated by octopamine and dopamine. Sci Rep 2018; 8:3215. [PMID: 29453438 PMCID: PMC5816622 DOI: 10.1038/s41598-018-20711-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 12/27/2017] [Indexed: 01/03/2023] Open
Abstract
Similar to pathogenic infection, high population density alters insects' prophylactic immunity. Density-dependent prophylaxis has been reported in many polyphenic insects, but the regulatory mechanism underlying this phenomenon remains unclear. The biogenic monoamines are known to play critical roles in mediating insect immune responses. In the current study, the immune capacity and the levels of three biogenic monoamines were investigated in the polyphenic larvae of Mythimna separata, reared at the densities of 1, 2, 5, 10, and 30 larvae per 650-mL jar. Concomitant with the increased phenoloxidase (PO) activity and total haemocyte count in the larvae at high densities (5, 10, 30 larvae/jar), the octopamine level was also increased. In contrast, the dopamine level was decreased, and the 5-hydroxytryptamine level was not significantly affected. Injection of octopamine induced significant increases in the total haemocyte count and PO activity. Conversely, epinastine, a specific antagonist of octopamine, decreased the total haemocyte count and PO activity. Another octopamine antagonist, phentolamine, inhibited the activity of PO and lysozymes. In addition, injection of dopamine induced a significant increase in PO activity and decreased the total haemocyte count and lysozyme activity. These results suggested that both octopamine and dopamine mediate the increases in total haemocyte count and PO activity in the crowded larvae.
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Kamhi JF, Arganda S, Moreau CS, Traniello JFA. Origins of Aminergic Regulation of Behavior in Complex Insect Social Systems. Front Syst Neurosci 2017; 11:74. [PMID: 29066958 PMCID: PMC5641352 DOI: 10.3389/fnsys.2017.00074] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 09/22/2017] [Indexed: 01/03/2023] Open
Abstract
Neuromodulators are conserved across insect taxa, but how biogenic amines and their receptors in ancestral solitary forms have been co-opted to control behaviors in derived socially complex species is largely unknown. Here we explore patterns associated with the functions of octopamine (OA), serotonin (5-HT) and dopamine (DA) in solitary ancestral insects and their derived functions in eusocial ants, bees, wasps and termites. Synthesizing current findings that reveal potential ancestral roles of monoamines in insects, we identify physiological processes and conserved behaviors under aminergic control, consider how biogenic amines may have evolved to modulate complex social behavior, and present focal research areas that warrant further study.
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Affiliation(s)
- J. Frances Kamhi
- Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia
| | - Sara Arganda
- Department of Biology, Boston University, Boston, MA, United States
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Corrie S. Moreau
- Department of Science and Education, Field Museum of Natural History, Chicago, IL, United States
| | - James F. A. Traniello
- Department of Biology, Boston University, Boston, MA, United States
- Graduate Program for Neuroscience, Boston University, Boston, MA, United States
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29
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Abstract
Passive mechanisms of mate guarding are used by males to promote sperm precedence with little cost, but these tactics can be disadvantageous for their mates and other males. Mated females of the plant bug Lygus hesperus are rendered temporarily unattractive by seminal fluids containing myristyl acetate and geranylgeranyl acetate. These antiaphrodisiac pheromones are gradually released from the female's gonopore, declining until they no longer suppress male courtship. Because starting quantities of these compounds can vary widely, the repellant signal becomes less reliable over time. Evidence was found of a complimentary mechanism that more accurately conveys female mating status. Once inside the female, geranylgeranyl acetate is progressively converted to geranylgeraniol then externalized. Geranylgeraniol counteracts the antiaphrodisiac effect despite having no inherent attractant properties of its own. This is the first evidence for such an anti-antiaphrodisiac pheromone, adding a new element to the communication mechanisms regulating reproductive behaviors.
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Affiliation(s)
- Colin S Brent
- Arid Land Agricultural Research Center, United States Department of Agriculture-Agricultural Research Service, Maricopa, United States
| | - John A Byers
- Arid Land Agricultural Research Center, United States Department of Agriculture-Agricultural Research Service, Maricopa, United States.,Department of Entomology, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Anat Levi-Zada
- Department of Entomology-Chemistry Unit, Agricultural Research Organization, Volcani Center, Rishon LeZion, Israel
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30
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Liu SC, Chiu CP, Tsai CH, Hung CY, Li TM, Wu YC, Tang CH. Soya-cerebroside, an extract of Cordyceps militaris, suppresses monocyte migration and prevents cartilage degradation in inflammatory animal models. Sci Rep 2017; 7:43205. [PMID: 28225075 PMCID: PMC5320555 DOI: 10.1038/srep43205] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 01/20/2017] [Indexed: 01/15/2023] Open
Abstract
Pathophysiological events that modulate the progression of structural changes in osteoarthritis (OA) include the secretion of inflammatory molecules, such as proinflammatory cytokines. Interleukin-1beta (IL-1β) is the prototypical inflammatory cytokine that activates OA synovial cells to release cytokines and chemokines in support of the inflammatory response. The monocyte chemoattractant protein-1 (MCP-1/CCL2) is one of the key chemokines that regulate migration and infiltration of monocytes in response to inflammation. We show in this study that IL-1β-induced MCP-1 expression and monocyte migration in OA synovial fibroblasts (OASFs) is effectively inhibited by soya-cerebroside, an extract of Cordyceps militaris. We found that soya-cerebroside up-regulated of microRNA (miR)-432 expression via inhibiting AMPK and AKT signaling pathways in OASFs. Soya-cerebroside also effectively decreased monocyte infiltration and prevented cartilage degradation in a rat inflammatory model. Our findings are the first to demonstrate that soya-cerebroside inhibits monocyte/macrophage infiltration into synoviocytes, attenuating synovial inflammation and preventing cartilage damage by reducing MCP-1 expression in vitro and in vivo. Taken together, we suggest a novel therapeutic strategy based on the use of soya-cerebroside for the management of OA.
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Affiliation(s)
- Shan-Chi Liu
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan.,Department of Orthopedic Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Ching-Peng Chiu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chun-Hao Tsai
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan.,Department of Orthopedic Surgery, China Medical University Hospital, Taichung, Taiwan
| | - Chun-Yin Hung
- Department of Orthopaedic Surgery, China Medical University Beigang Hospital, Yun-Lin County, Taiwan
| | - Te-Mao Li
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Yang-Chang Wu
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung, Taiwan.,Research Center for Chinese Herbal Medicine, China Medical University, Taichung, Taiwan.,Chinese Medicine Research and Development Center, China Medical University Hospital, Taiwan.,Center of Molecular Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chih-Hsin Tang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan.,Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan.,Department of Biotechnology, College of Health Science, Asia University, Taichung, Taiwan
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31
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Pamminger T, Buttstedt A, Norman V, Schierhorn A, Botías C, Jones JC, Basley K, Hughes WOH. The effects of juvenile hormone on Lasius niger reproduction. JOURNAL OF INSECT PHYSIOLOGY 2016; 95:1-7. [PMID: 27614175 DOI: 10.1016/j.jinsphys.2016.09.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 09/05/2016] [Accepted: 09/05/2016] [Indexed: 06/06/2023]
Abstract
Reproduction has been shown to be costly for survival in a wide diversity of taxa. The resulting trade-off, termed the reproduction-survival trade-off, is thought to be one of the most fundamental forces of life-history evolution. In insects the pleiotropic effect of juvenile hormone (JH), antagonistically regulating reproduction and pathogen resistance, is suggested to underlie this phenomenon. In contrast to the majority of insects, reproductive individuals in many eusocial insects defy this trade-off and live both long and prosper. By remodelling the gonadotropic effects of JH in reproductive regulation, the queens of the long-lived black garden ant Lasius niger (living up to 27 years), have circumvented the reproduction-survival trade off enabling them to maximize both reproduction and pathogen resistance simultaneously. In this study we measure fertility, vitellogenin gene expression and protein levels after experimental manipulation of hormone levels. We use these measurements to investigate the mechanistic basis of endocrinological role remodelling in reproduction and determine how JH suppresses reproduction in this species, rather then stimulating it, like in the majority of insects. We find that JH likely inhibits three key aspects of reproduction both during vitellogenesis and oogenesis, including two previously unknown mechanisms. In addition, we document that juvenile hormone, as in the majority of insects, has retained some stimulatory function in regulating vitellogenin expression. We discuss the evolutionary consequences of this complex regulatory architecture of reproduction in L. niger, which might enable the evolution of similar reproductive phenotypes by alternate regulatory pathways, and the surprising flexibility regulatory role of juvenile hormone in this process.
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Affiliation(s)
- T Pamminger
- School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK.
| | - A Buttstedt
- Institut Für Biologie, Molekulare Ökologie, Martin-Luther-Universität Halle-Wittenberg, Halle 06099, Germany
| | - V Norman
- School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK
| | - A Schierhorn
- Institut Für Biochemie, Martin-Luther-Universität Halle Wittenberg, Halle 06099, Germany
| | - C Botías
- School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK
| | - J C Jones
- School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK
| | - K Basley
- School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK
| | - W O H Hughes
- School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK
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