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  1. Article ; Online: Gut check: can other microbes or communities phenocopy

    Brown, Jeffrey W

    Gut

    2021  Volume 71, Issue 7, Page(s) 1241–1242

    MeSH term(s) Gastric Mucosa/pathology ; Helicobacter Infections/diagnosis ; Helicobacter Infections/pathology ; Helicobacter pylori ; Humans ; Stomach/pathology ; Stomach Neoplasms/pathology
    Language English
    Publishing date 2021-09-23
    Publishing country England
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 80128-8
    ISSN 1468-3288 ; 0017-5749
    ISSN (online) 1468-3288
    ISSN 0017-5749
    DOI 10.1136/gutjnl-2021-325749
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: 3'-sulfated Lewis

    Das, Koushik K / Brown, Jeffrey W

    Frontiers in cell and developmental biology

    2023  Volume 11, Page(s) 1089028

    Abstract: Metaplasia, dysplasia, and cancer arise from normal ... ...

    Abstract Metaplasia, dysplasia, and cancer arise from normal epithelia
    Language English
    Publishing date 2023-02-14
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2737824-X
    ISSN 2296-634X
    ISSN 2296-634X
    DOI 10.3389/fcell.2023.1089028
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Coordination of Locomotion by Serotonergic Neurons in the Predatory Gastropod

    Lee, Colin A / Brown, Jeffrey W / Gillette, Rhanor

    The Journal of neuroscience : the official journal of the Society for Neuroscience

    2023  Volume 43, Issue 20, Page(s) 3647–3657

    Abstract: Similar design characterizes neuronal networks for goal-directed motor control across the complex, segmented vertebrates, insects, and polychaete annelids with jointed appendages. Evidence is lacking for whether this design evolved independently in those ...

    Abstract Similar design characterizes neuronal networks for goal-directed motor control across the complex, segmented vertebrates, insects, and polychaete annelids with jointed appendages. Evidence is lacking for whether this design evolved independently in those lineages, evolved in parallel with segmentation and appendages, or could have been present in a soft-bodied common ancestor. We examined coordination of locomotion in an unsegmented, ciliolocomoting gastropod, the sea slug
    MeSH term(s) Animals ; Pleurobranchaea/physiology ; Gastropoda ; Serotonergic Neurons ; Locomotion/physiology ; Swimming/physiology ; Vertebrates
    Language English
    Publishing date 2023-04-24
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 604637-x
    ISSN 1529-2401 ; 0270-6474
    ISSN (online) 1529-2401
    ISSN 0270-6474
    DOI 10.1523/JNEUROSCI.1386-22.2023
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  4. Article ; Online: Division of labor for defensive retaliation and preemption by the peripheral and central nervous systems in the nudibranch Berghia.

    Brown, Jeffrey W / Berg, Ondine H / Boutko, Anastasiya / Stoerck, Cody / Boersma, Margaret A / Frost, William N

    Current biology : CB

    2024  

    Abstract: Relatively little is known about how peripheral nervous systems (PNSs) contribute to the patterning of behavior in which their role transcends the simple execution of central motor commands or mediation of reflexes. We sought to draw inferences to this ... ...

    Abstract Relatively little is known about how peripheral nervous systems (PNSs) contribute to the patterning of behavior in which their role transcends the simple execution of central motor commands or mediation of reflexes. We sought to draw inferences to this end in the aeolid nudibranch Berghia stephanieae, which generates a rapid, dramatic defense behavior, "bristling." This behavior involves the coordinated movement of cerata, dozens of venomous appendages emerging from the animal's mantle. Our investigations revealed that bristling constitutes a stereotyped but non-reflexive two-stage behavior: an initial adduction of proximate cerata to sting the offending stimulus (stage 1) followed by a coordinated radial extension of remaining cerata to create a pincushion-like defensive screen around the animal (stage 2). In decerebrated specimens, stage 1 bristling was preserved, while stage 2 bristling was replaced by slower, uncoordinated ceratal movements. We conclude from these observations that, first, the animal's PNS and central nervous system (CNS) mediate stages 1 and 2 of bristling, respectively; second, the behavior propagates through the body utilizing both peripheral- and central-origin nerve networks that support different signaling kinetics; and third, the former network inhibits the latter in the body region being stimulated. These findings extend our understanding of the PNS' computational capacity and provide insight into a neuroethological scheme in which the CNS and PNS both independently and interactively pattern different aspects of non-reflexive behavior.
    Language English
    Publishing date 2024-04-30
    Publishing country England
    Document type Journal Article
    ZDB-ID 1071731-6
    ISSN 1879-0445 ; 0960-9822
    ISSN (online) 1879-0445
    ISSN 0960-9822
    DOI 10.1016/j.cub.2024.04.038
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  5. Article ; Online: Paligenosis: Cellular Remodeling During Tissue Repair.

    Brown, Jeffrey W / Cho, Charles J / Mills, Jason C

    Annual review of physiology

    2021  Volume 84, Page(s) 461–483

    Abstract: Complex multicellular organisms have evolved specific mechanisms to replenish cells in homeostasis and during repair. Here, we discuss how emerging technologies (e.g., single-cell RNA sequencing) challenge the concept that tissue renewal is fueled by ... ...

    Abstract Complex multicellular organisms have evolved specific mechanisms to replenish cells in homeostasis and during repair. Here, we discuss how emerging technologies (e.g., single-cell RNA sequencing) challenge the concept that tissue renewal is fueled by unidirectional differentiation from a resident stem cell. We now understand that cell plasticity, i.e., cells adaptively changing differentiation state or identity, is a central tissue renewal mechanism. For example, mature cells can access an evolutionarily conserved program (paligenosis) to reenter the cell cycle and regenerate damaged tissue. Most tissues lack dedicated stem cells and rely on plasticity to regenerate lost cells. Plasticity benefits multicellular organisms, yet it also carries risks. For one, when long-lived cells undergo paligenotic, cyclical proliferation and redif-ferentiation, they can accumulate and propagate acquired mutations that activate oncogenes and increase the potential for developing cancer. Lastly, we propose a new framework for classifying patterns of cell proliferation in homeostasis and regeneration, with stem cells representing just one of the diverse methods that adult tissues employ.
    MeSH term(s) Cell Cycle/physiology ; Cell Differentiation/physiology ; Cell Plasticity ; Cell Proliferation/physiology ; Humans ; Regeneration/physiology ; Stem Cells
    Language English
    Publishing date 2021-10-27
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S. ; Review
    ZDB-ID 207933-1
    ISSN 1545-1585 ; 0066-4278
    ISSN (online) 1545-1585
    ISSN 0066-4278
    DOI 10.1146/annurev-physiol-061121-035954
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  6. Article: Neural division of labor: the gastropod

    Brown, Jeffrey W / Berg, Ondine H / Boutko, Anastasiya / Stoerck, Cody / Boersma, Margaret A / Frost, William N

    bioRxiv : the preprint server for biology

    2023  

    Abstract: Relatively little is known about how the peripheral nervous system (PNS) contributes to the patterning of behavior, in which its role transcends the simple execution of central motor commands or mediation of reflexes. We sought to draw inferences to this ...

    Abstract Relatively little is known about how the peripheral nervous system (PNS) contributes to the patterning of behavior, in which its role transcends the simple execution of central motor commands or mediation of reflexes. We sought to draw inferences to this end in the aeolid nudibranch
    Language English
    Publishing date 2023-07-31
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.07.29.551068
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Photodiode-Based Optical Imaging for Recording Network Dynamics with Single-Neuron Resolution in Non-Transgenic Invertebrates.

    Hill, Evan S / Brown, Jeffrey W / Frost, William N

    Journal of visualized experiments : JoVE

    2020  , Issue 161

    Abstract: The development of transgenic invertebrate preparations in which the activity of specifiable sets of neurons can be recorded and manipulated with light represents a revolutionary advance for studies of the neural basis of behavior. However, a downside of ...

    Abstract The development of transgenic invertebrate preparations in which the activity of specifiable sets of neurons can be recorded and manipulated with light represents a revolutionary advance for studies of the neural basis of behavior. However, a downside of this development is its tendency to focus investigators on a very small number of "designer" organisms (e.g., C. elegans and Drosophila), potentially negatively impacting the pursuit of comparative studies across many species, which is needed for identifying general principles of network function. The present article illustrates how optical recording with voltage-sensitive dyes in the brains of non-transgenic gastropod species can be used to rapidly (i.e., within the time course of single experiments) reveal features of the functional organization of their neural networks with single-cell resolution. We outline in detail the dissection, staining, and recording methods used by our laboratory to obtain action potential traces from dozens to ~150 neurons during behaviorally relevant motor programs in the CNS of multiple gastropod species, including one new to neuroscience - the nudibranch Berghia stephanieae. Imaging is performed with absorbance voltage-sensitive dyes and a 464-element photodiode array that samples at 1,600 frames/second, fast enough to capture all action potentials generated by the recorded neurons. Multiple several-minute recordings can be obtained per preparation with little to no signal bleaching or phototoxicity. The raw optical data collected through the methods described can subsequently be analyzed through a variety of illustrated methods. Our optical recording approach can be readily used to probe network activity in a variety of non-transgenic species, making it well suited for comparative studies of how brains generate behavior.
    MeSH term(s) Action Potentials/physiology ; Animals ; Animals, Genetically Modified ; Caenorhabditis elegans ; Fluorescent Dyes ; Neurons/physiology ; Optical Imaging/methods
    Chemical Substances Fluorescent Dyes
    Language English
    Publishing date 2020-07-09
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S. ; Video-Audio Media
    ZDB-ID 2259946-0
    ISSN 1940-087X ; 1940-087X
    ISSN (online) 1940-087X
    ISSN 1940-087X
    DOI 10.3791/61623
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: A common modular design of nervous systems originating in soft-bodied invertebrates.

    Gribkova, Ekaterina D / Lee, Colin A / Brown, Jeffrey W / Cui, Jilai / Liu, Yichen / Norekian, Tigran / Gillette, Rhanor

    Frontiers in physiology

    2023  Volume 14, Page(s) 1263453

    Abstract: Nervous systems of vertebrates and invertebrates show a common modular theme in the flow of information for cost-benefit decisions. Sensory inputs are incentivized by integrating stimulus qualities with motivation and memory to affect appetitive state, a ...

    Abstract Nervous systems of vertebrates and invertebrates show a common modular theme in the flow of information for cost-benefit decisions. Sensory inputs are incentivized by integrating stimulus qualities with motivation and memory to affect appetitive state, a system of homeostatic drives, and labelled for directionality. Appetitive state determines action responses from a repertory of possibles and transmits the decision to a premotor system that frames the selected action in motor arousal and appropriate postural and locomotion commands. These commands are then sent to the primary motor pattern generators controlling the motorneurons, with feedback at each stage. In the vertebrates, these stages are mediated by forebrain pallial derivatives for incentive and directionality (olfactory bulb, cerebral cortex, pallial amygdala,
    Language English
    Publishing date 2023-10-03
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2564217-0
    ISSN 1664-042X
    ISSN 1664-042X
    DOI 10.3389/fphys.2023.1263453
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  9. Article ; Online: Implantable synthetic organoid matrices for intestinal regeneration.

    Brown, Jeffrey W / Mills, Jason C

    Nature cell biology

    2017  Volume 19, Issue 11, Page(s) 1307–1308

    Abstract: Organoids are a powerful tool to study both physiological and disease processes. A completely synthetic matrix assembled from exchangeable modular parts has been developed and not only supports proliferation of human intestinal organoids derived from ... ...

    Abstract Organoids are a powerful tool to study both physiological and disease processes. A completely synthetic matrix assembled from exchangeable modular parts has been developed and not only supports proliferation of human intestinal organoids derived from pluripotent embryonic stem cells, but also augments subsequent ad vivo implantation into injured murine colon.
    MeSH term(s) Animals ; Cell Differentiation/physiology ; Embryonic Stem Cells/physiology ; Humans ; Intestines/physiology ; Organoids/physiology ; Pluripotent Stem Cells/physiology ; Prostheses and Implants ; Regeneration/physiology
    Language English
    Publishing date 2017-10-31
    Publishing country England
    Document type Journal Article
    ZDB-ID 1474722-4
    ISSN 1476-4679 ; 1465-7392
    ISSN (online) 1476-4679
    ISSN 1465-7392
    DOI 10.1038/ncb3635
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  10. Article: A new role for IFRD1 in regulation of ER stress in bladder epithelial homeostasis.

    Fashemi, Bisiayo E / Rougeau, Amala K / Salazar, Arnold M / Bark, Steven J / Chappidi, Rayvanth / Brown, Jeffrey W / Cho, Charles J / Mills, Jason C / Mysorekar, Indira U

    bioRxiv : the preprint server for biology

    2024  

    Abstract: A healthy bladder requires the homeostatic maintenance of and rapid regeneration of urothelium upon stress/injury/infection. Several factors have been identified to play important roles in urothelial development, injury and disease response, however, ... ...

    Abstract A healthy bladder requires the homeostatic maintenance of and rapid regeneration of urothelium upon stress/injury/infection. Several factors have been identified to play important roles in urothelial development, injury and disease response, however, little is known about urothelial regulation at homeostasis. Here, we identify a new role for IFRD1, a stress-induced gene that has recently been demonstrated to play a critical role in adult tissue proliferation and regeneration, in maintenance of urothelial function/ homeostasis in a mouse model. We show that the mouse bladder expresses IFRD1 at homeostasis and its loss alters the global transcriptome of the bladder with significant accumulation of cellular organelles including multivesicular bodies with undigested cargo, lysosomes and mitochondria. We demonstrate that IFRD1 interacts with several mRNA-translation-regulating factors in human urothelial cells and that the urothelium of
    Language English
    Publishing date 2024-01-10
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2024.01.09.574887
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