FlyPub Date : 2022-12-01DOI: 10.1080/19336934.2022.2061834
Naoki Okamoto, Akira Watanabe
{"title":"Interorgan communication through peripherally derived peptide hormones in <i>Drosophila</i>.","authors":"Naoki Okamoto, Akira Watanabe","doi":"10.1080/19336934.2022.2061834","DOIUrl":"10.1080/19336934.2022.2061834","url":null,"abstract":"<p><p>In multicellular organisms, endocrine factors such as hormones and cytokines regulate development and homoeostasis through communication between different organs. For understanding such interorgan communications through endocrine factors, the fruit fly <i>Drosophila melanogaster</i> serves as an excellent model system due to conservation of essential endocrine systems between flies and mammals and availability of powerful genetic tools. In <i>Drosophila</i> and other insects, functions of neuropeptides or peptide hormones from the central nervous system have been extensively studied. However, a series of recent studies conducted in <i>Drosophila</i> revealed that peptide hormones derived from peripheral tissues also play critical roles in regulating multiple biological processes, including growth, metabolism, reproduction, and behaviour. Here, we summarise recent advances in understanding target organs/tissues and functions of peripherally derived peptide hormones in <i>Drosophila</i> and describe how these hormones contribute to various biological events through interorgan communications.</p>","PeriodicalId":12128,"journal":{"name":"Fly","volume":"16 1","pages":"152-176"},"PeriodicalIF":2.4,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9067537/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9530994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
FlyPub Date : 2022-12-01DOI: 10.1080/19336934.2022.2076539
Yutaka Matsubayashi
{"title":"Dynamic movement and turnover of extracellular matrices during tissue development and maintenance.","authors":"Yutaka Matsubayashi","doi":"10.1080/19336934.2022.2076539","DOIUrl":"10.1080/19336934.2022.2076539","url":null,"abstract":"<p><p>Extracellular matrices (ECMs) are essential for the architecture and function of animal tissues. ECMs have been thought to be highly stable structures; however, too much stability of ECMs would hamper tissue remodelling required for organ development and maintenance. Regarding this conundrum, this article reviews multiple lines of evidence that ECMs are in fact rapidly moving and replacing components in diverse organisms including hydra, worms, flies, and vertebrates. Also discussed are how cells behave on/in such dynamic ECMs, how ECM dynamics contributes to embryogenesis and adult tissue homoeostasis, and what molecular mechanisms exist behind the dynamics. In addition, it is highlighted how cutting-edge technologies such as genome engineering, live imaging, and mathematical modelling have contributed to reveal the previously invisible dynamics of ECMs. The idea that ECMs are unchanging is to be changed, and ECM dynamics is emerging as a hitherto unrecognized critical factor for tissue development and maintenance.</p>","PeriodicalId":12128,"journal":{"name":"Fly","volume":"16 1","pages":"248-274"},"PeriodicalIF":2.4,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9302511/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10472232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Notch Signalling Under Maternal-to-Zygotic Transition.","authors":"Tomoko Yamakawa, Elzava Yuslimatin Mujizah, Kenji Matsuno","doi":"10.1080/19336934.2022.2139981","DOIUrl":"https://doi.org/10.1080/19336934.2022.2139981","url":null,"abstract":"<p><p>The development of all animal embryos is initially directed by the gene products supplied by their mothers. With the progression of embryogenesis, the embryo's genome is activated to command subsequent developments. This transition, which has been studied in many model animals, is referred to as the Maternal-to-Zygotic Transition (MZT). In many organisms, including flies, nematodes, and sea urchins, genes involved in Notch signaling are extensively influenced by the MZT. This signaling pathway is highly conserved across metazoans; moreover, it regulates various developmental processes. Notch signaling defects are commonly associated with various human diseases. The maternal contribution of its factors was first discovered in flies. Subsequently, several genes were identified from mutant embryos with a phenotype similar to <i>Notch</i> mutants only upon the removal of the maternal contributions. Studies on these maternal genes have revealed various novel steps in the cascade of Notch signal transduction. Among these genes, <i>pecanex</i> and <i>almondex</i> have been functionally characterized in recent studies. Therefore, in this review, we will focus on the roles of these two maternal genes in Notch signaling and discuss future research directions on its maternal function.</p>","PeriodicalId":12128,"journal":{"name":"Fly","volume":"16 1","pages":"347-359"},"PeriodicalIF":1.2,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9645253/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10472596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
FlyPub Date : 2022-12-01DOI: 10.1080/19336934.2022.2126259
Gina Hauptman, Marie C Reichert, Muna A Abdal Rhida, Timothy A Evans
{"title":"Characterization of enhancer fragments in <i>Drosophila robo2</i>.","authors":"Gina Hauptman, Marie C Reichert, Muna A Abdal Rhida, Timothy A Evans","doi":"10.1080/19336934.2022.2126259","DOIUrl":"10.1080/19336934.2022.2126259","url":null,"abstract":"<p><p>Receptor proteins of the Roundabout (Robo) family regulate axon guidance decisions during nervous system development. Among the three <i>Drosophila robo</i> family genes (<i>robo1, robo2</i> and <i>robo3), robo2</i> displays a dynamic expression pattern and regulates multiple axon guidance outcomes, including preventing midline crossing in some axons, promoting midline crossing in others, forming lateral longitudinal axon pathways, and regulating motor axon guidance. The identity and location of enhancer elements regulating <i>robo2's</i> complex and dynamic expression pattern in different neural cell types are unknown. Here, we characterize a set of 17 transgenic lines expressing GAL4 under the control of DNA sequences derived from noncoding regions in and around <i>robo2</i>, to identify enhancers controlling specific aspects of <i>robo2</i> expression in the embryonic ventral nerve cord. We identify individual fragments that confer expression in specific cell types where <i>robo2</i> is known to function, including early pioneer neurons, midline glia and lateral longitudinal neurons. Our results indicate that <i>robo2'</i>s dynamic expression pattern is specified by a combination of enhancer elements that are active in different subsets of cells. We show that <i>robo2's</i> expression in lateral longitudinal axons represents two genetically separable subsets of neurons, and compare their axon projections with each other and with Fasciclin II (FasII), a commonly used marker of longitudinal axon pathways. In addition, we provide a general description of each fragment's expression in embryonic tissues outside of the nervous system, to serve as a resource for other researchers interested in <i>robo2</i> expression and its functional roles outside the central nervous system.</p>","PeriodicalId":12128,"journal":{"name":"Fly","volume":"16 1","pages":"312-346"},"PeriodicalIF":2.4,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/3b/61/KFLY_16_2126259.PMC9559326.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10478241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
FlyPub Date : 2022-12-01DOI: 10.1080/19336934.2022.2066952
Hiroki Nagai, Masayuki Miura, Yu-Ichiro Nakajima
{"title":"Cellular mechanisms underlying adult tissue plasticity in <i>Drosophila</i>.","authors":"Hiroki Nagai, Masayuki Miura, Yu-Ichiro Nakajima","doi":"10.1080/19336934.2022.2066952","DOIUrl":"https://doi.org/10.1080/19336934.2022.2066952","url":null,"abstract":"<p><p>Adult tissues in Metazoa dynamically remodel their structures in response to environmental challenges including sudden injury, pathogen infection, and nutritional fluctuation, while maintaining quiescence under homoeostatic conditions. This characteristic, hereafter referred to as adult tissue plasticity, can prevent tissue dysfunction and improve the fitness of organisms in continuous and/or severe change of environments. With its relatively simple tissue structures and genetic tools, studies using the fruit fly <i>Drosophila melanogaster</i> have provided insights into molecular mechanisms that control cellular responses, particularly during regeneration and nutrient adaptation. In this review, we present the current understanding of cellular mechanisms, stem cell proliferation, polyploidization, and cell fate plasticity, all of which enable adult tissue plasticity in various <i>Drosophila</i> adult organs including the midgut, the brain, and the gonad, and discuss the organismal strategy in response to environmental changes and future directions of the research.</p>","PeriodicalId":12128,"journal":{"name":"Fly","volume":"16 1","pages":"190-206"},"PeriodicalIF":1.2,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9045823/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9546157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
FlyPub Date : 2022-12-01DOI: 10.1080/19336934.2022.2058309
Eden W McQueen, Mehrnaz Afkhami, Joel Atallah, John M Belote, Nicolas Gompel, Yael Heifetz, Yoshitaka Kamimura, Shani C Kornhauser, John P Masly, Patrick O'Grady, Julianne Peláez, Mark Rebeiz, Gavin Rice, Ernesto Sánchez-Herrero, Maria Daniela Santos Nunes, Augusto Santos Rampasso, Sandra L Schnakenberg, Mark L Siegal, Aya Takahashi, Kentaro M Tanaka, Natascha Turetzek, Einat Zelinger, Virginie Courtier-Orgogozo, Masanori J Toda, Mariana F Wolfner, Amir Yassin
{"title":"A standardized nomenclature and atlas of the female terminalia of <i>Drosophila melanogaster</i>.","authors":"Eden W McQueen, Mehrnaz Afkhami, Joel Atallah, John M Belote, Nicolas Gompel, Yael Heifetz, Yoshitaka Kamimura, Shani C Kornhauser, John P Masly, Patrick O'Grady, Julianne Peláez, Mark Rebeiz, Gavin Rice, Ernesto Sánchez-Herrero, Maria Daniela Santos Nunes, Augusto Santos Rampasso, Sandra L Schnakenberg, Mark L Siegal, Aya Takahashi, Kentaro M Tanaka, Natascha Turetzek, Einat Zelinger, Virginie Courtier-Orgogozo, Masanori J Toda, Mariana F Wolfner, Amir Yassin","doi":"10.1080/19336934.2022.2058309","DOIUrl":"https://doi.org/10.1080/19336934.2022.2058309","url":null,"abstract":"<p><p>The model organism <i>Drosophila melanogaster</i> has become a focal system for investigations of rapidly evolving genital morphology as well as the development and functions of insect reproductive structures. To follow up on a previous paper outlining unifying terminology for the structures of the male terminalia in this species, we offer here a detailed description of the female terminalia of <i>D. melanogaster</i>. Informative diagrams and micrographs are presented to provide a comprehensive overview of the external and internal reproductive structures of females. We propose a collection of terms and definitions to standardize the terminology associated with the female terminalia in <i>D. melanogaster</i> and we provide a correspondence table with the terms previously used. Unifying terminology for both males and females in this species will help to facilitate communication between various disciplines, as well as aid in synthesizing research across publications within a discipline that has historically focused principally on male features. Our efforts to refine and standardize the terminology should expand the utility of this important model system for addressing questions related to the development and evolution of animal genitalia, and morphology in general.</p>","PeriodicalId":12128,"journal":{"name":"Fly","volume":"16 1","pages":"128-151"},"PeriodicalIF":1.2,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9116418/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9654254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
FlyPub Date : 2022-12-01DOI: 10.1080/19336934.2022.2148828
Masato Enomoto, Tatsushi Igaki
{"title":"Cell-cell interactions that drive tumorigenesis in <i>Drosophila</i>.","authors":"Masato Enomoto, Tatsushi Igaki","doi":"10.1080/19336934.2022.2148828","DOIUrl":"https://doi.org/10.1080/19336934.2022.2148828","url":null,"abstract":"<p><p>Cell-cell interactions within tumour microenvironment play crucial roles in tumorigenesis. Genetic mosaic techniques available in <i>Drosophila</i> have provided a powerful platform to study the basic principles of tumour growth and progression via cell-cell communications. This led to the identification of oncogenic cell-cell interactions triggered by endocytic dysregulation, mitochondrial dysfunction, cell polarity defects, or Src activation in <i>Drosophila</i> imaginal epithelia. Such oncogenic cooperations can be caused by interactions among epithelial cells, mesenchymal cells, and immune cells. Moreover, microenvironmental factors such as nutrients, local tissue structures, and endogenous growth signalling activities critically affect tumorigenesis. Dissecting various types of oncogenic cell-cell interactions at the single-cell level in <i>Drosophila</i> will greatly increase our understanding of how tumours progress in living animals.</p>","PeriodicalId":12128,"journal":{"name":"Fly","volume":"16 1","pages":"367-381"},"PeriodicalIF":1.2,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9683056/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10479263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
FlyPub Date : 2022-05-17DOI: 10.1080/19336934.2022.2074783
Daiki Umetsu
{"title":"Cell mechanics and cell-cell recognition controls by Toll-like receptors in tissue morphogenesis and homeostasis","authors":"Daiki Umetsu","doi":"10.1080/19336934.2022.2074783","DOIUrl":"https://doi.org/10.1080/19336934.2022.2074783","url":null,"abstract":"ABSTRACT Signal transduction by the Toll-like receptors (TLRs) is conserved and essential for innate immunity in metazoans. The founding member of the TLR family, Drosophila Toll-1, was initially identified for its role in dorsoventral axis formation in early embryogenesis. The Drosophila genome encodes nine TLRs that display dynamic expression patterns during development, suggesting their involvement in tissue morphogenesis and homeostasis. Recent progress on the developmental functions of TLRs beyond dorsoventral patterning has revealed not only their diverse functions in various biological processes, but also unprecedented molecular mechanisms in directly regulating cell mechanics and cell-cell recognition independent of the canonical signal transduction pathway involving transcriptional regulation of target genes. In this review, I feature and discuss the non-immune functions of TLRs in the control of epithelial tissue homeostasis, tissue morphogenesis, and cell-cell recognition between cell populations with different cell identities.","PeriodicalId":12128,"journal":{"name":"Fly","volume":"16 1","pages":"233 - 247"},"PeriodicalIF":1.2,"publicationDate":"2022-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45632648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
FlyPub Date : 2022-05-13DOI: 10.1080/19336934.2022.2073158
Makoto Sato, Takumi Suzuki
{"title":"Cutting edge technologies expose the temporal regulation of neurogenesis in the Drosophila nervous system","authors":"Makoto Sato, Takumi Suzuki","doi":"10.1080/19336934.2022.2073158","DOIUrl":"https://doi.org/10.1080/19336934.2022.2073158","url":null,"abstract":"ABSTRACT During the development of the central nervous system (CNS), extremely large numbers of neurons are produced in a regular fashion to form precise neural circuits. During this process, neural progenitor cells produce different neurons over time due to their intrinsic gene regulatory mechanisms as well as extrinsic mechanisms. The Drosophila CNS has played an important role in elucidating the temporal mechanisms that control neurogenesis over time. It has been shown that a series of temporal transcription factors are sequentially expressed in neural progenitor cells and regulate the temporal specification of neurons in the embryonic CNS. Additionally, similar mechanisms are found in the developing optic lobe and central brain in the larval CNS. However, it is difficult to elucidate the function of numerous molecules in many different cell types solely by molecular genetic approaches. Recently, omics analysis using single-cell RNA-seq and other methods has been used to study the Drosophila nervous system on a large scale and is making a significant contribution to the understanding of the temporal mechanisms of neurogenesis. In this article, recent findings on the temporal patterning of neurogenesis and the contributions of cutting-edge technologies will be reviewed.","PeriodicalId":12128,"journal":{"name":"Fly","volume":"16 1","pages":"222 - 232"},"PeriodicalIF":1.2,"publicationDate":"2022-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49020058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
FlyPub Date : 2022-05-01DOI: 10.1080/19336934.2022.2066953
Yuki Ishikawa, M. Kimura, M. Toda
{"title":"Biology and ecology of the Oriental flower-breeding Drosophila elegans and related species","authors":"Yuki Ishikawa, M. Kimura, M. Toda","doi":"10.1080/19336934.2022.2066953","DOIUrl":"https://doi.org/10.1080/19336934.2022.2066953","url":null,"abstract":"ABSTRACT Animals adapt to their environments in the course of evolution. One effective approach to elucidate mechanisms of adaptive evolution is to compare closely related species with model organisms in which knowledge of the molecular and physiological bases of various traits has been accumulated. Drosophila elegans and its close relatives, belonging to the same species group as the model organism D. melanogaster, exhibit various unique characteristics such as flower-breeding habit, courtship display, territoriality, sexual dimorphism, and colour polymorphism. Their ease of culturing and availability of genomic information makes them a useful model for understanding mechanisms of adaptive evolution. Here, we review the morphology, distribution, and phylogenetic relationships of D. elegans and related species, as well as their characteristic flower-dependent biology, food habits, and life-history traits. We also describe their unique mating and territorial behaviours and note their distinctive karyotype and the genetic mechanisms of morphological diversity that have recently been revealed.","PeriodicalId":12128,"journal":{"name":"Fly","volume":"16 1","pages":"207 - 220"},"PeriodicalIF":1.2,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43806870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}