The Mokalled lab in the Department of Developmental Biology at Washington University School of Medicine is hiring at all levels (http://www.mokalledlab.com/).  Our lab uses zebrafish and mouse model systems to study neural regeneration after spinal cord injury or disease.  Candidates with enthusiasm for neuroscience, regenerative biology, and zebrafish research are encouraged to forward a cover letter, CV, and list of 3 or more references to mmokalled@wustl.edu.

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We are recruiting 1-2 PhD students (to begin Fall 2018) and a postdoctoral fellow (position immediately available) to study cell shape changes and rearrangement and underlying cytoskeletal regulation during organ formation in Dr. SeYeon Chung’s newly established lab at Louisiana State University.

http://www.lsu.edu/science/biosci/faculty_and_staff/seyeonchung.php

We use the genetically tractable Drosophila salivary gland as a model system to understand how a flat sheet of epithelial cells becomes a three-dimensional tubular structure during development. The project will employ a combination of fly genetics, advanced imaging and image analysis, and molecular and biochemical approaches.

Related publication: Chung, S., et al., (2017) Uncoupling apical constriction from tissue invagination. eLife 6:e22235.

Grad students: Highly motivated candidates with a strong undergraduate degree in any area related to the biological sciences are encouraged to apply.

Postdocs: Highly motivated candidates who recently obtained or are about to obtain a PhD in a field of cell biology, developmental biology or biochemistry are encouraged to apply.

If interested, please send your CV, a brief description of your research interests, and contact information of three references to Dr. SeYeon Chung (seyeonchung@lsu.edu).

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Here are the highlights form the current issue of Development:

Cross-border control of stem cell behaviour

Cell identity and proliferation differs between organs, raising the question of how cells at interorgan boundaries are regulated to maintain organ integrity. On p. 4091, Don Fox and colleagues identify a specialised transition zone at the midgut/hindgut boundary in the Drosophila intestine. This ‘hybrid zone’, which shows gene expression profiles from both organs, changes in size during development but is maintained into adult life, and cells within it contribute to both midgut and hindgut tissue. The authors describe a new population of stem cells – the organ-boundary intestinal stem cells (OB-ISCs) – that reside in the midgut immediately adjacent to the hybrid zone and show slower division rates. Injury to the hybrid zone increases proliferation of these OB-ISCs, and if the injury is severe enough, hyperplastic OB-ISCs can cross the boundary and invade the hindgut. The authors find that OB-ISC proliferation is induced by release of the JAK-STAT ligand Unpaired-3 from the hindgut and the hybrid zone following injury. The hybrid zone therefore serves as a focal point of interorgan interaction to influence the behaviour of OB-ISCs and preserve the midgut/hindgut distinction, raising the possibility that interorgan regulation of stem cell behaviour may be a common mechanism to maintain organ identity.

Migrating interneurons get active

During the development of the vertebrate central nervous system, interneuron precursors migrate extensively before they reach their final destination in the brain, where they then differentiate and become integrated into functional circuits. It is known that developing interneurons are sensitive to neurotransmitters but now, on p. 4125, Ronald Jabs and co-workers show that interneuron precursors require synaptic input for correct migration. Focussing on a population of cerebellar molecular layer interneurons in mice, the authors use time-lapse imaging and patch-clamp recordings to determine the morphological and electrophysiological characteristics of migrating interneuron precursors. Their analyses reveal that interneuron precursors exhibit spontaneous postsynaptic currents and receive both glutamatergic and GABAergic input as they migrate. Ultrastructural studies further demonstrate the presence of synaptic structures on these cells, and the authors also show that the density of synaptic elements increases along the migratory route of these interneuron precursors. Finally, the researchers report that blocking synaptic transmission, using tetanus toxin and Co²⁺ to abrogate presynaptic release, perturbs migration; both the speed and directionality of migration are reduced. Together, these findings reveal that the direct synaptic innervation of migrating interneuron precursors regulates their migratory behaviour and highlights an important and unprecedented role for synapses during neuronal pathfinding.

Zika: strain-specific impacts on brain development

Infection with Zika virus during pregnancy can lead to severe birth defects in humans, including microcephaly. Zika has two major lineages – the Asian lineage, which has been associated with birth defects, and the African lineage, which has not – but the relative effects of each strain on brain development, and the effects of the related dengue virus that co-circulates with Zika, have not been addressed. On p. 4114, Jian-Fu Chen and colleagues address this problem by performing intracerebral inoculation with Zika and dengue virus on embryonic mouse brains and comparing their effects on neural development. They show that both dengue and Zika viruses cause microcephaly through impaired neural progenitor proliferation and increased neuronal apoptosis, though the effect is much greater for Zika than dengue. Surprisingly, given the apparent absence of virus-related pathology in affected human populations, the African strain grows faster and causes greater progenitor and neuronal cell death, and higher postnatal mortality, than the Asian lineage. This study generates insights into the neurodevelopmental phenotypes generated by these viruses, and provides a foundation for future investigations into the molecular and genetic causes of Zika pathogenesis.

PLUS:

Fibroblast growth factors: key players in regeneration and tissue repair

 Both regeneration and repair are orchestrated by a highly coordinated interplay of different growth factors and cytokines. Among the key players are the fibroblast growth factors (FGFs), which control the migration, proliferation, differentiation and survival of different cell types. In addition, FGFs influence the expression of other factors involved in the regenerative response. In their Review, Sabine Werner and colleagues summarize current knowledge on the roles of endogenous FGFs in regeneration and repair in different organisms and in different tissues and organs.

The evolution of cortical development: the synapsid-diapsid divergence

During evolution, the cortex appeared in stem amniotes and evolved divergently in two main branches of the phylogenetic tree: the synapsids (which led to present day mammals) and the diapsids (reptiles and birds). Comparative studies in organisms that belong to those two branches have identified some common principles of cortical development and organization that are possibly inherited from stem amniotes and regulated by similar molecular mechanisms. These comparisons have also highlighted certain essential features of mammalian cortices that are absent or different in diapsids and that probably evolved after the synapsid-diapsid divergence.  In his Review, Andre Goffinet discusses this data and provides an evolutionary perspective on cortical neurogenesis, neuronal migration and cortical layer formation and folding.

Developing a sense of touch

The sensation of touch is mediated by mechanosensory neurons that are embedded in skin and relay signals from the periphery to the central nervous system. During embryogenesis, axons elongate from these neurons to make contact with the developing skin. Concurrently, the epithelium of skin transforms from a homogeneous tissue into a heterogeneous organ that is made up of distinct layers and microdomains. Throughout this process, each neuronal terminal must form connections with an appropriate skin region to serve its function. In their Review, Blair Jenkins and Ellen Lumpkin present current knowledge of the development of the sensory microdomains in mammalian skin and the mechanosensory neurons that innervate them.

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Development is pleased to welcome submissions for an upcoming special issue on human development. This issue will focus on advances in our understanding of how human organs and tissues are formed, and how the processes and mechanisms involved compare to those in other species.

This special issue will be published in early autumn 2018, to coincide with our upcoming meeting ‘From stem cells to human development‘, and continues Development’s efforts to support and promote the growing community of researchers interested in the development of our own species. Until recently, our understanding of human embryogenesis has been hampered by the inaccessibility of the system. Recent advances in the stem cell field – the generation of human pluripotent stem cells and the development of organoid cultures systems – now allow us to investigate developing human tissues in vitro, complementing analyses of primary human cells and tissues. Together, these resources and technologies are enabling us to gain significant insights into human cell fate specification and tissue organisation, and informing our efforts to treat developmental disorders and develop regenerative therapies.

As the leading journal focussed on advances in developmental biology and stem cells, Development is the natural home for papers on human development. We therefore invite you to submit your breakthrough research for consideration for this special issue. The issue will be widely marketed and distributed at relevant conferences worldwide, providing prominent exposure for your work. We encourage submissions of Research Articles and Reports, and Techniques & Resources papers, that use in vitro stem cell and organoid systems as well as human tissue samples.

Articles should be submitted by 1st March 2018 for consideration for the special issue

We also welcome proposals for Review Articles for this special issue. Please send us a short synopsis detailing the scope and structure of the proposed article, and including key references. The deadline for submission of proposals is 15th January 2018, and articles should be submitted by 1st March 2018.

Please refer to our author guidelines for information on preparing your manuscript for Development, and submit via our online submission system. Please highlight that your submission is to be considered for the special issue in your cover letter. For any queries about the special issue, or for any presubmission enquiries, please get in touch by email. 

This will be our second special issue on human development; we invite you to browse our earlier issue, published in September 2015.

Find out more here:

http://dev.biologists.org/content/special-issue-human-development

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A position at the Postdoctoral level is available December 1, 2017 to investigate the evolution and development of teeth in reptiles.  Our lab has been studying the processes of tooth development and tooth replacement in snake and lizard embryos (see review Richman and Handrigan, Genesis, 2011; Handrigan et al., 2010, Dev Biol, vol. 348, 130-141). In addition we have identified populations of putative stem cells in the dental epithelium using the gecko model (Handrigan et al., Development, 37: 137 3545-3549, 2010). This NIH-funded project will focus on the signalling pathways that control tooth replacement as well as the contribution of putative stem cells to this process. Approaches used will include primarily in vivo manipulations on adult geckos followed by single-cell RNAseq on the responding dental epithelium and mesenchyme. Applicants should have recently completed a PhD (in the last 2 years or less) and have related research experience in bioinformatics, RNAseq, developmental biology and/or evolution. Salary support is available from research grants but applicants will be encouraged to apply for independent support. Please email a CV, statement of research interests and contact information for at least three referees to:

Dr. Joy Richman,

Life Sciences Institute, UBC,

2350 Health Sciences Mall,

Vancouver, British Columbia, V6T 1Z3,

CANADA

richman@dentistry.ubc.ca

http://www.dentistry.ubc.ca/research/researchers/Richman/

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The composition of extracellular microenvironment is dynamically regulated in time and space during embryonic development, and our lab discovered that cell-type specific expression of the extracellular matrix protein fibronectin is essential for mammalian embryogenesis. Furthermore, we found that fibronectin regulates distinct morphogenetic processes in cell type-specific manner, and functions both in cell-autonomous and non cell-autonomous manner. We are searching for a motivated postdoctoral researcher to uncover differences in the mechanisms by which cell-autonomous and non cell-autonomous fibronectin signals to cells and regulates cell fate decisions. The successful applicant will apply state-of-the art confocal and super-resolution microscopy techniques, utilize mouse genetics, CRISPR, and global profiling of gene expression and signaling pathways to uncover the mechanisms, by which extracellular microenvironment guides morphogenetic programs. Our lab is located in the heart of Philadelphia, USA. For further information about our lab and publications, please visit our lab’s website: http://www.jefferson.edu/university/research/researcher/researcher-faculty/astrof-laboratory.html
To apply, please send a letter of interest detailing your expertise, CV and names and contact information of three references to sophie.astrof@gmail.com

As an employer, Jefferson maintains a commitment to provide equal access to employment.  Jefferson values diversity and encourages applications from women, members of minority groups, LGBTQ individuals, disabled individuals, and veterans.    

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Addgene is a global, nonprofit repository that was created to help scientists share plasmids. Before we go over the developmental biology resources available at Addgene, here’s a little background on our organization. Our mission is to accelerate research and discovery by improving access to useful research materials and information. Labs deposit plasmids with Addgene at no cost, and we handle storage, distribution, and record keeping. Researchers can request plasmids and, in some cases, ready-made lentivirus and AAV, from our collection, and we coordinate Material Transfer Agreements to facilitate easy sharing.

We also provide numerous educational resources on our blog and website. Our Plasmids 101 and CRISPR 101 blog series were designed to help scientists of all levels learn more about molecular biology, cloning, genome engineering, and other popular technologies. To make it easy to find plasmids for a given purpose, we provide curated pages on our website for various plasmid collections like CRISPR, stem cells, cancer, and fluorescent proteins. Addgene’s technical support team also provides scientists with real-time plasmid troubleshooting. By providing these services, Addgene’s goal is to create a lasting resource for research and discovery around the world.

Developmental biologists have deposited many of Addgene’s most popular plasmids. I’ll cover the general collections most relevant to developmental biology and also highlight a few standouts from our collection.

Stem Cell Tools

Our stem cell collection is a true Addgene strength. We have many plasmids that cover methods for iPS cell generation – retroviral, lentiviral, adenoviral, episomal and non-viral methods. We also distribute plasmids for direct differentiation and transdifferentiation. These plasmids are conveniently organized on our Stem Cell Collection page. Keep an eye out for the blue flame plasmids – these each have been requested over 100 times and have proven useful for many researchers!

  Plasmid spotlight: Andras Nagy Piggybac reprogramming plasmids

Lentiviral and retroviral reprogramming methods carry the caveat of insertional mutagenesis, while plasmid and adenoviral reprogramming methods suffer from lower efficiency. Woltjen et al. created a Tet-inducible reprogramming system using the Piggybac transposase. This system allows you to easily reprogram fibroblasts into iPS cells using only plasmids – there’s no need to prepare or deliver virus to your cells. Instead, you co-express PB-TET-MKOS containing the four Yamanaka factors, PB-CA-rtTA Adv containing the rtTA Tet transactivator, and a plasmid containing the Piggybac transposase (available from Transposagen and others.) Doxycycline treatment then turns on MKOS expression, promoting reprogramming. Once reprogrammed lines have been isolated, transient expression of Piggybac transposase will remove the MKOS transgene from the genome.

CRISPR Plasmids for Use With Developmental Models

Addgene’s CRISPR collection also has resources for scientists interested in developmental biology. On our CRISPR landing page, you can find plasmids sorted by model organism or system. In addition to our many mammalian expression plasmids, we have plasmids available for common developmental models like Drosophila, C. elegans, Xenopus and zebrafish. Addgene also maintains a list of Pre-designed gRNAs that have been used in previous publications, and you can easily search the table for your favorite gene. We also encourage you to deposit your own gRNA plasmids.

  Plasmid spotlight: Leonard Zon Zebrafish CRISPR plasmids

Zebrafish have proven very amenable to CRISPR genome engineering, and the Zon lab Gateway constructs can help you to knock out your gene of interest in a tissue-specific manner. Their Tol2 based system enables you to examine mosaic disruption of your gene in F0 embryos or to generate stable tissue-specific knockout lines. All four plasmids from this publication have earned blue flames for 100+ requests! To use this system, you’ll combine Gateway destination vector pDestTol2pA2-U6:gRNA or pDestTol2CG2-U6:gRNA with a middle entry vector containing Cas9 (e.g. pME-Cas9). You’ll also need a 5’ entry vector containing your tissue-specific promoter and a 3’ entry vector with a polyA sequence, both of which can be obtained from the Tol2kit. A Gateway reaction will bring the pieces together, allowing you to examine the effects of gene knockout in a specific tissue. A detailed protocol is available from the Zon lab on the plasmid pages of each Addgene plasmid.

Cre-Lox Systems for Spatio-Temporal Control of Gene Expression

If you’re using Cre-lox recombination to turn gene expression ON or OFF, chances are Addgene has plasmids you can use. In addition to standard Cre recombinase, we also provide inducible, promoter-regulated, and optimized Cres, to name a few. Cre-dependent vectors expressing fluorescent proteins or luciferase are also available. FLEx (FLip-Excision) vectors, which conditionally turn off one gene and activate another, are available from many Addgene depositors. PhiC31 recombinase and other non-Cre recombinases are available for use in Drosophila.

  Plasmid spotlight: Connie Cepko pCAG-ERT2CreERT2 plasmid

This plasmid expresses CreERT, or tamoxifen-inducible Cre, in a mammalian expression system. In cell lines transfected with this plasmid, tamoxifen will activate Cre, allowing removal or inversion of a floxed gene of interest. This plasmid has been requested over 1100 times, showing its versatility and applicability to many kinds of studies.

Lineage tracing plasmids make up another exciting mini-collection at Addgene. Brainbow is a combinatorial Cre-lox based system that colors single cells with as many as 90-160 different colors. Many of Addgene’s Brainbow plasmids have blue flames. Although originally developed for neuronal mapping, these plasmids have been adapted for lineage tracing. Multibow plasmids adapted from the Brainbow system for use in zebrafish create unique “barcodes” allowing researchers to track individual cells and their clonal progeny.

It’s impossible to cover all of the resources available at Addgene in one blog post, so we encourage you to take a look at our website. If you’re looking for plasmids from a specific publication, start by searching for the paper’s corresponding author to see if she or he has deposited with us. You can also sign up for Addgene Alerts for your favorite PIs and you’ll get emails whenever new plasmids are available from their labs. If you have trouble finding what you need, or you’d like us to reach out to a potential depositor, feel free to email us at help@addgene.org. We also encourage you to deposit your own plasmids thereby making them easily accessible to other members of the research community.

Mary Gearing is a Scientist at Addgene. She enjoys developing educational content to help scientists learn more about molecular biology. Follow her on Twitter @megearing.

Addgene Resources

Stem Cell Collection

CRISPR Collection

List of Validated gRNAs

Cre-Lox Collection

Addgene Blog

Plasmids 101: FLEx Vectors

Cre-ating New Methods for Site-Specific Recombination in Drosophila

References

piggyBac transposition reprograms fibroblasts to induced pluripotent stem cells. Woltjen K, Michael IP, Mohseni P, Desai R, Mileikovsky M, Hamalainen R, Cowling R, Wang W, Liu P, Gertsenstein M, Kaji K, Sung HK, Nagy A.  Nature. 2009 Apr 9;458(7239):766-70. doi: 10.1038/nature07863. PMID: 19252478

A CRISPR/Cas9 Vector System for Tissue-Specific Gene Disruption in Zebrafish. Ablain J, Durand EM, Yang S, Zhou Y, Zon LI.  Dev Cell. 2015 Mar 4. pii: S1534-5807(15)00075-1. doi: 10.1016/j.devcel.2015.01.032. PMID: 25752963

High-Efficiency FLP and PhiC31 Site-Specific Recombination in Mammalian Cells. Raymond CS, Soriano P. PLoS ONE. 2007 Jan 17;2(1):e162. PMID: 17225864

Multiple new site-specific recombinases for use in manipulating animal genomes. Nern A, Pfeiffer BD, Svoboda K, Rubin GM. Proc Natl Acad Sci USA. 2011 Aug 23;108(34):14198-203. doi: 10.1073/pnas.1111704108. PMID: 21831835

Controlled expression of transgenes introduced by in vivo electroporation. Matsuda T, Cepko CL. Proc Natl Acad Sci U S A. 2007 Jan 16;104(3):1027-32. PMID: 17209010

Improved tools for the Brainbow toolbox. Cai D, Cohen KB, Luo T, Lichtman JW, Sanes JR. Nat Methods. 2013 May 5;10(6):540-7. doi: 10.1038/nmeth.2450. PMID: 23817127

Multibow: digital spectral barcodes for cell tracing. Xiong F, Obholzer ND, Noche RR, Megason SG. PLoS One. 2015 May 26;10(5):e0127822. doi: 10.1371/journal.pone.0127822. eCollection 2015. PMID: 26010570

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Molecules called endosiRNAs help us avoid genetic chaos, according to a new study from a team at the Babraham Institute. Much of the human genome contains pieces of DNA called transposons, a form of genetic parasite. When active, transposons can damage genes so it is important to keep them inactive. At a certain point early in the human life cycle controlling transposons is particularly difficult. This latest research, published in Cell Stem Cell reveals how endosiRNAs keep our genes safe during this vulnerable stage.

Transposons, also called transposable elements, are ancient viruses that have become a permanent part of our genes. Around half of the human genome is made of transposons, many are damaged, but some can become active. Active transposons can be harmful because they move about the genome. When transposons move they can damage genes, leading to genetic illnesses and playing a part in some cancers.

Chemical markers in DNA called methylations can keep transposons inactive. Cells often use methylations to inactivate pieces of DNA, whether they are genes or transposons. Yet, in each new generation most methylations are temporarily erased and renewed by a process called epigenetic reprogramming. This means that, during sperm and egg production there is a short time when methylations do not control transposon activity, leaving them free to damage genes and shuffle DNA.

The new findings show that transposons become active when cells erase DNA methylation and they are shut down by the endosiRNA system. Just like active genes, active transposons produce messages in the form of RNA molecules, which have many similarities to DNA. The study reveals that cells can detect these transposon RNA messages and use them to create specific endogenous small interfering RNAs (endosiRNAs). The endosiRNAs then act like a trap allowing a protein called Argonaute2 (Ago2) to seek and destroy transposon messages before they cause any harm.

Speaking about the research, lead author on the paper, Dr Rebecca Berrens, said: “Epigenetic reprogramming plays a vital role in wiping the genome clean at the start of development, but it leaves our genes vulnerable. Understanding the arms race between our genes and transposon activity has been a long-running question in molecular biology. This is the first evidence that endosiRNAs moderate transposon activity during DNA demethylation. EndosiRNAs provide a first line of defence against transposons during epigenetic reprogramming.”

The effects of active transposons vary, often they have no effect, only occasionally will they alter an important gene. Yet, transposons can affect almost any gene, potentially leading to different kinds of genetic disease. Studying the control of transposons, adds to our understanding of the many ways that they can impact on human health.

This work highlights that a transposons often sit within genes and are read in the opposite direction to the surrounding gene. It is this arrangement that allows cells to identify RNA messages from transposons. RNA messages read from the same piece of DNA in opposite directions are complementary, meaning they can join to form a structure called double-stranded RNA (dsRNA), which initiates the creation of endosiRNAs.

Senior scientist on the paper, Professor Wolf Reik, Head of the Epigenetics Laboratory at the Babraham Institute, said: “Transposons make up a large part of our genome and keeping them under control is vital for survival. If left unchecked their ability to move around the genome could cause extensive genetic damage. Understanding transposons helps us to make sense of what happens when they become active and whether there is anything we can do to prevent it.”

Much of this research was carried out using embryonic stem cells grown in the lab, which had been genetically modified to lack DNA methylations. Natural epigenetic reprogramming happens in primordial germ cells, the cells that make sperm and eggs, but these are harder to study. The researchers used primordial germ cells to verify the key results from their study of stem cells.

Notes:

Publication Reference

Berrens, RV., Andrews, S., Spensberger, D., Santos, F., Dean, W., Gould, P., Sharif, J., Olova, N., Chandra, T., Koseki, H., von Meyenn, F., Reik, W.. An endosiRNA-based repression mechanism counteracts transposon activation during global DNA demethylation in embryonic stem cells. Cell Stem Cell
DOI: http://dx.doi.org/10.1016/j.stem.2017.10.004

Research Funding
This work and the researchers that contributed to it were generously supported by SNSF, Gates Cambridge Trust, BBSRC (Epigenetics Institute Strategic Programme Grant), Wellcome Trust, EU BLUEPRINT and EpiGeneSys

Image Credit
Credit: R. Berrens
Header – Image of fluorescently labelled embryonic stem cells. These cells have been modified to mimic the effects of epigenetic reprogramming. DNA in the cells is marked in blue. Red indicates cells that contain active transposons.
Embedded – Graphical abstract of the key findings from the paper. The opposing directions of a transposon and a gene result in double stranded RNA that can be used to produce endosiRNA to prevent transposon activation. Credit: Veronique Juvin

Animal Statement:
As a publicly funded research institute, the Babraham Institute is committed to engagement and transparency in all aspects of its research. Animals are only used in Babraham Institute research when their use is essential to address a specific scientific goal, which cannot be studied through other means. The main species used are laboratory strains of rodents, with limited numbers of other species. We do not house cats, dogs, horses or primates at the Babraham Research Campus for research purposes.

Samples of primordial germ cells were collected from C57Bl/6J transgenic mice at embryonic day 13.5 and 14.5. The use of animals in this study was performed in accordance with the Animal (Scientific Procedures) Act 1986, and regulated by the Babraham Institute Animal Welfare and Ethical Review Body (AWERB). Experiments were planned and designed in accordance with the 3Rs.

Please follow the link for further details of the Institute’s animal research and our animal welfare practices: http://www.babraham.ac.uk/about-us/animal-research

About the Babraham Institute:
The Babraham Institute receives strategic funding from the Biotechnology and Biological Sciences Research Council (BBSRC) through an Institute Core Capability Grant to undertake world-class life sciences research. Its goal is to generate new knowledge of biological mechanisms underpinning ageing, development and the maintenance of health. Research focuses on signalling, gene regulation and the impact of epigenetic regulation at different stages of life. By determining how the body reacts to dietary and environmental stimuli and manages microbial and viral interactions, we aim to improve wellbeing and support healthier ageing.

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Cambridge, United Kingdom

The Company of Biologists (biologists.com) is looking to recruit a Scientific Copy Editor to work across our portfolio of five life-science journals, with a particular focus on Journal of Experimental Biology. This full-time position is available for two years initially. The role entails copyediting articles to a high standard, compiling author corrections, overseeing the journal production process, and liaising with authors, academic editors, external production suppliers and in-house staff to ensure that articles are published in a timely and professional manner.

Candidates should have a degree (ideally a PhD) in a relevant scientific area, and previous copyediting experience is strongly preferred. Additional requirements include excellent literacy skills, high attention to detail, a diplomatic communication style, good interpersonal and IT skills, a flexible approach and the ability to work to tight deadlines.

The position represents a unique opportunity to gain experience on our highly successful life-science journals and offers an attractive salary and benefits. The position will be based in The Company of Biologists’ attractive modern offices on the outskirts of Cambridge, UK.

The Company of Biologists (biologists.com) exists to support biologists and inspire advances in biology. At the heart of what we do are our five specialist journals – Development, Journal of Cell Science, Journal of Experimental Biology, Disease Models & Mechanisms and Biology Open – two of them fully open access. All are edited by expert researchers in the field, and all articles are subjected to rigorous peer review. We take great pride in the experience of our editorial team and the quality of the work we publish. We believe that the profits from publishing the hard work of biologists should support scientific discovery and help develop future scientists. Our grants help support societies, meetings and individuals. Our workshops and meetings give the opportunity to network and collaborate.

Applicants should send a CV to recruitment@biologists.com, along with a covering letter that summarises their relevant experience, why they are enthusiastic about the role, and their current salary.

All applications should be received by 27 November, although late applications may still be considered.

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SUPERVISORS: Dr Thomas Theil and Dr Pleasantine Mill

PROJECT SUMMARY
This project will dissect how cell signalling via the primary cilium coordinates the activity of neural stem cells during the development of the cerebral cortex. Proliferation and differentiation of cortical stem cells are tightly controlled processes. Changes in these parameters can have profound effects on cortical size and are thought to underlie cortical malformations in human disease and the expansion of the human cerebral cortex during evolution.

To investigate roles of primary cilia in cortical stem cell development, the project will employ Inpp5e mutant mice which display an elongated, folded cerebral cortex. Using a combination of in utero electroporation with super resolution and live imaging of primary cilia dynamics in the developing brain the project aims to understand how primary cilia control the signalling required to determine the balance between stem cell proliferation and neurogenesis and how cilia determine the asymmetric inheritance of cell fate determinants These analyses will be a vital step towards gaining a comprehensive understanding of how cilia coordinate the proliferation of cortical stem cells in health and in ciliopathies, human syndromes caused by defects in cilia structure and/or function.

STUDENT TRAINING
The PhD student will be closely integrated into the Theil and Mill research groups which have overlapping and complementing interests in cortical development and primary cilia. The student will benefit from the excellent research environment and the unique research infrastructure including state of the art animal and super-resolution imaging facilities at the Centre for Discovery Brain Sciences and at the Institute for Genetics and Molecular Medicine at the University of Edinburgh.

FUNDING NOTES

Applications for BBSRC EASTBIO studentships are invited from excellent UK students (and EU citizens if they meet UK Research Council residency criteria) with at least a BSc (Hons) 2.1 undergraduate degree.

MORE INFORMATION

https://www.findaphd.com/search/ProjectDetails.aspx?PJID=90134

e-mail: thomas.theil@ed.ac.uk

HOW TO APPLY?

Applications, and curriculum vitae should be sent to PGR student team at RDSVS.PGR.Admin@ed.ac.uk

APPLICATION DEADLINE: 4th December 2017.

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