1
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Pandey A, Roy JK. Rab11 maintains the undifferentiated state of adult midgut precursors via DPP pathway. Exp Cell Res 2024; 439:114092. [PMID: 38754617 DOI: 10.1016/j.yexcr.2024.114092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 05/10/2024] [Accepted: 05/12/2024] [Indexed: 05/18/2024]
Abstract
Asymmetric stem cell divisions play instrumental roles in the maintenance, growth and differentiation of organs. Failure of asymmetric stem cell divisions may result in an array of developmental disorders, including cancer. It is well established that the gene, inscuteable, acts as the upstream component of asymmetric cell divisions. In Drosophila larval midgut, a founder adult midgut precursor (AMP) experiences an asymmetric division to instruct its first daughter to become a peripheral cell that serves as a niche where the AMP and its future daughters can remain undifferentiated. The present study demonstrates that inscuteable expressing stem cells require Rab11, a conserved small Ras-like GTPase, for proper proliferation and differentiation. As insc-GAL4 mediated Rab11RNAi in Drosophila larval and adult midguts show the disruption of the niche microenvironment of adult midgut precursors as well as elevated DPP signalling at the larval stage, which is associated with aberrant over-proliferation and early differentiation of larval AMPs and adult intestinal stem cells. The observed connections between Rab11, larval AMP proliferation, niche establishment, and DPP signalling highlight the potential for Rab11 to serve as a key regulatory factor in maintaining tissue homeostasis and balanced cellular growth.
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Affiliation(s)
- Akanksha Pandey
- Cytogenetics Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Jagat Kumar Roy
- Cytogenetics Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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2
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Balasubramanian I, Bandyopadhyay S, Flores J, Bianchi‐Smak J, Lin X, Liu H, Sun S, Golovchenko NB, Liu Y, Wang D, Patel R, Joseph I, Suntornsaratoon P, Vargas J, Green PHR, Bhagat G, Lagana SM, Ying W, Zhang Y, Wang Z, Li WV, Singh S, Zhou Z, Kollias G, Farr LA, Moonah SN, Yu S, Wei Z, Bonder EM, Zhang L, Kiela PR, Edelblum KL, Ferraris R, Liu T, Gao N. Infection and inflammation stimulate expansion of a CD74 + Paneth cell subset to regulate disease progression. EMBO J 2023; 42:e113975. [PMID: 37718683 PMCID: PMC10620768 DOI: 10.15252/embj.2023113975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 09/19/2023] Open
Abstract
Paneth cells (PCs), a specialized secretory cell type in the small intestine, are increasingly recognized as having an essential role in host responses to microbiome and environmental stresses. Whether and how commensal and pathogenic microbes modify PC composition to modulate inflammation remain unclear. Using newly developed PC-reporter mice under conventional and gnotobiotic conditions, we determined PC transcriptomic heterogeneity in response to commensal and invasive microbes at single cell level. Infection expands the pool of CD74+ PCs, whose number correlates with auto or allogeneic inflammatory disease progressions in mice. Similar correlation was found in human inflammatory disease tissues. Infection-stimulated cytokines increase production of reactive oxygen species (ROS) and expression of a PC-specific mucosal pentraxin (Mptx2) in activated PCs. A PC-specific ablation of MyD88 reduced CD74+ PC population, thus ameliorating pathogen-induced systemic disease. A similar phenotype was also observed in mice lacking Mptx2. Thus, infection stimulates expansion of a PC subset that influences disease progression.
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Affiliation(s)
| | | | - Juan Flores
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | | | - Xiang Lin
- Department of Computer ScienceNew Jersey Institute of TechnologyNewarkNJUSA
| | - Haoran Liu
- Department of Computer ScienceNew Jersey Institute of TechnologyNewarkNJUSA
| | - Shengxiang Sun
- Department of Pathology and ImmunologyWashington University School of MedicineSaint LouisMOUSA
| | | | - Yue Liu
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | - Dahui Wang
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | - Radha Patel
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | - Ivor Joseph
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | - Panan Suntornsaratoon
- Department of Pharmacology, Physiology & NeuroscienceRutgers New Jersey Medical SchoolNewarkNJUSA
| | - Justin Vargas
- Department of Medicine, Celiac Disease CenterColumbia University Irving Medical CenterNew YorkNYUSA
| | - Peter HR Green
- Department of Medicine, Celiac Disease CenterColumbia University Irving Medical CenterNew YorkNYUSA
| | - Govind Bhagat
- Department of Medicine, Celiac Disease CenterColumbia University Irving Medical CenterNew YorkNYUSA
- Department of Pathology and Cell BiologyColumbia University Irving Medical CenterNew YorkNYUSA
| | - Stephen M Lagana
- Department of Pathology and Cell BiologyColumbia University Irving Medical CenterNew YorkNYUSA
| | - Wang Ying
- Hackensack Meridian Health Center for Discovery and InnovationNutleyNJUSA
| | - Yi Zhang
- Hackensack Meridian Health Center for Discovery and InnovationNutleyNJUSA
| | - Zhihan Wang
- Department of StatisticsRutgers UniversityNew BrunswickNJUSA
| | - Wei Vivian Li
- Department of Biostatistics and EpidemiologyRutgers UniversityNew BrunswickNJUSA
| | - Sukhwinder Singh
- Department of PathologyRutgers New Jersey Medical SchoolNewarkNJUSA
| | - Zhongren Zhou
- Department of Pathology & Laboratory Medicine, Robert Wood Johnson Medical SchoolRutgers UniversityNew BrunswickNJUSA
| | - George Kollias
- Biomedical Sciences Research Centre, “Alexander Fleming”VariGreece
| | - Laura A Farr
- Division of Infectious Diseases and International HealthUniversity of VirginiaCharlottesvilleVAUSA
| | - Shannon N Moonah
- Division of Infectious Diseases and International HealthUniversity of VirginiaCharlottesvilleVAUSA
| | - Shiyan Yu
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | - Zhi Wei
- Department of Computer ScienceNew Jersey Institute of TechnologyNewarkNJUSA
| | - Edward M Bonder
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | - Lanjing Zhang
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
- Department of PathologyPenn Medicine Princeton Medical CenterPlainsboroNJUSA
| | - Pawel R Kiela
- Departments of Pediatrics and Immunology, and Daniel Cracchiolo Institute for Pediatric Autoimmune Disease Research, Steele Children's Research CenterThe University of Arizona Health SciencesTucsonAZUSA
| | - Karen L Edelblum
- Center for Immunity and InflammationRutgers New Jersey Medical SchoolNewarkNJUSA
| | - Ronaldo Ferraris
- Department of Pharmacology, Physiology & NeuroscienceRutgers New Jersey Medical SchoolNewarkNJUSA
| | - Ta‐Chiang Liu
- Department of Pathology and ImmunologyWashington University School of MedicineSaint LouisMOUSA
| | - Nan Gao
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
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3
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Joseph I, Flores J, Farrell V, Davis J, Bianchi‐Smak J, Feng Q, Goswami S, Lin X, Wei Z, Tong K, Feng Z, Verzi MP, Bonder EM, Goldenring JR, Gao N. RAB11A and RAB11B control mitotic spindle function in intestinal epithelial progenitor cells. EMBO Rep 2023; 24:e56240. [PMID: 37424454 PMCID: PMC10481667 DOI: 10.15252/embr.202256240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 06/20/2023] [Accepted: 06/27/2023] [Indexed: 07/11/2023] Open
Abstract
RAB11 small GTPases and associated recycling endosome have been localized to mitotic spindles and implicated in regulating mitosis. However, the physiological significance of such regulation has not been observed in mammalian tissues. We have used newly engineered mouse models to investigate intestinal epithelial renewal in the absence of single or double isoforms of RAB11 family members: Rab11a and Rab11b. Comparing with single knockouts, mice with compound ablation demonstrate a defective cell cycle entry and robust mitotic arrest followed by apoptosis, leading to a total penetrance of lethality within 3 days of gene ablation. Upon Rab11 deletion ex vivo, enteroids show abnormal mitotic spindle formation and cell death. Untargeted proteomic profiling of Rab11a and Rab11b immunoprecipitates has uncovered a shared interactome containing mitotic spindle microtubule regulators. Disrupting Rab11 alters kinesin motor KIF11 function and impairs bipolar spindle formation and cell division. These data demonstrate that RAB11A and RAB11B redundantly control mitotic spindle function and intestinal progenitor cell division, a mechanism that may be utilized to govern the homeostasis and renewal of other mammalian tissues.
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Affiliation(s)
- Ivor Joseph
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | - Juan Flores
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | | | - Justin Davis
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | | | - Qiang Feng
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | | | - Xiang Lin
- Department of Computer SciencesNew Jersey Institute of TechnologyNewarkNJUSA
| | - Zhi Wei
- Department of Computer SciencesNew Jersey Institute of TechnologyNewarkNJUSA
| | - Kevin Tong
- Department of GeneticsRutgers UniversityNew BrunswickNJUSA
| | - Zhaohui Feng
- Rutgers Cancer Institute of New JerseyNew BrunswickNJUSA
| | | | - Edward M Bonder
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
| | - James R Goldenring
- Section of Surgical Sciences and Epithelial Biology CenterVanderbilt University Medical CenterNashvilleTNUSA
| | - Nan Gao
- Department of Biological SciencesRutgers UniversityNewarkNJUSA
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4
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Barlow HR, Ahuja N, Bierschenk T, Htike Y, Fassetta L, Azizoglu DB, Flores J, Gao N, de la O S, Sneddon JB, Marciano DK, Cleaver O. Rab11 is essential to pancreas morphogenesis, lumen formation and endocrine mass. Dev Biol 2023; 499:59-74. [PMID: 37172642 DOI: 10.1016/j.ydbio.2023.05.002] [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: 11/17/2022] [Revised: 04/21/2023] [Accepted: 05/09/2023] [Indexed: 05/15/2023]
Abstract
The molecular links between tissue-level morphogenesis and the differentiation of cell lineages in the pancreas remain elusive despite a decade of studies. We previously showed that in pancreas both processes depend on proper lumenogenesis. The Rab GTPase Rab11 is essential for epithelial lumen formation in vitro, however few studies have addressed its functions in vivo and none have tested its requirement in pancreas. Here, we show that Rab11 is critical for proper pancreas development. Co-deletion of the Rab11 isoforms Rab11A and Rab11B in the developing pancreatic epithelium (Rab11pancDKO) results in ∼50% neonatal lethality and surviving adult Rab11pancDKO mice exhibit defective endocrine function. Loss of both Rab11A and Rab11B in the embryonic pancreas results in morphogenetic defects of the epithelium, including defective lumen formation and lumen interconnection. In contrast to wildtype cells, Rab11pancDKO cells initiate the formation of multiple ectopic lumens, resulting in a failure to coordinate a single apical membrane initiation site (AMIS) between groups of cells. This results in a failure to form ducts with continuous lumens. Here, we show that these defects are due to failures in vesicle trafficking, as apical and junctional components remain trapped within Rab11pancDKO cells. Together, these observations suggest that Rab11 directly regulates epithelial lumen formation and morphogenesis. Our report links intracellular trafficking to organ morphogenesis in vivo and presents a novel framework for decoding pancreatic development.
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Affiliation(s)
- Haley R Barlow
- Department of Molecular Biology, Center for Regenerative Science and Medicine, USA.
| | - Neha Ahuja
- Department of Molecular Biology, Center for Regenerative Science and Medicine, USA
| | - Tyler Bierschenk
- Department of Molecular Biology, Center for Regenerative Science and Medicine, USA
| | - Yadanar Htike
- Department of Molecular Biology, Center for Regenerative Science and Medicine, USA
| | - Luke Fassetta
- Department of Molecular Biology, Center for Regenerative Science and Medicine, USA
| | - D Berfin Azizoglu
- Department of Developmental Biology, Beckman Center, 279 W. Campus Drive, B300, Stanford, CA, 94305, USA
| | - Juan Flores
- Rutgers University Microbiome Program, 679 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Nan Gao
- Rutgers University Microbiome Program, 679 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Sean de la O
- Department of Cell and Tissue Biology, Department of Anatomy, Diabetes Center, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, 94143, USA
| | - Julie B Sneddon
- Department of Cell and Tissue Biology, Department of Anatomy, Diabetes Center, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, 94143, USA
| | - Denise K Marciano
- Internal Medicine and Nephrology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390, USA
| | - Ondine Cleaver
- Department of Molecular Biology, Center for Regenerative Science and Medicine, USA.
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5
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Ciaston I, Dobosz E, Potempa J, Koziel J. The subversion of toll-like receptor signaling by bacterial and viral proteases during the development of infectious diseases. Mol Aspects Med 2022; 88:101143. [PMID: 36152458 PMCID: PMC9924004 DOI: 10.1016/j.mam.2022.101143] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/29/2022] [Accepted: 09/09/2022] [Indexed: 02/05/2023]
Abstract
Toll-like receptors (TLRs) are pattern recognition receptors (PRRs) that respond to pathogen-associated molecular patterns (PAMPs). The recognition of specific microbial ligands by TLRs triggers an innate immune response and also promotes adaptive immunity, which is necessary for the efficient elimination of invading pathogens. Successful pathogens have therefore evolved strategies to subvert and/or manipulate TLR signaling. Both the impairment and uncontrolled activation of TLR signaling can harm the host, causing tissue destruction and allowing pathogens to proliferate, thus favoring disease progression. In this context, microbial proteases are key virulence factors that modify components of the TLR signaling pathway. In this review, we discuss the role of bacterial and viral proteases in the manipulation of TLR signaling, highlighting the importance of these enzymes during the development of infectious diseases.
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Affiliation(s)
- Izabela Ciaston
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Ewelina Dobosz
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Jan Potempa
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland; Department of Oral Health and Systemic Disease, University of Louisville School of Dentistry, University of Louisville, Louisville, KY, USA.
| | - Joanna Koziel
- Department of Microbiology Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland.
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6
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Shen Z, Luo W, Tan B, Nie K, Deng M, Wu S, Xiao M, Wu X, Meng X, Tong T, Zhang C, Ma K, Liao Y, Xu J, Wang X. Roseburia intestinalis stimulates TLR5-dependent intestinal immunity against Crohn's disease. EBioMedicine 2022; 85:104285. [PMID: 36182776 PMCID: PMC9526137 DOI: 10.1016/j.ebiom.2022.104285] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/04/2022] [Accepted: 09/09/2022] [Indexed: 11/25/2022] Open
Abstract
Background Methods Findings Interpretation Funding
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7
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Rathan-Kumar S, Roland JT, Momoh M, Goldstein A, Lapierre LA, Manning E, Mitchell L, Norman J, Kaji I, Goldenring JR. Rab11FIP1-deficient mice develop spontaneous inflammation and show increased susceptibility to colon damage. Am J Physiol Gastrointest Liver Physiol 2022; 323:G239-G254. [PMID: 35819177 PMCID: PMC9423785 DOI: 10.1152/ajpgi.00042.2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 06/23/2022] [Accepted: 06/29/2022] [Indexed: 01/31/2023]
Abstract
The small GTPase, Rab11a, regulates vesicle trafficking and cell polarity in epithelial cells through interaction with Rab11 family-interacting proteins (Rab11-FIPs). We hypothesized that deficiency of Rab11-FIP1 would affect mucosal integrity in the intestine. Global Rab11FIP1 knockout (KO) mice were generated by deletion of the second exon. Pathology of intestinal tissues was analyzed by immunostaining of colonic sections and RNA-sequencing of isolated colonic epithelial cells. A low concentration of dextran sodium sulfate (DSS, 2%) was added to drinking water for 5 days, and injury score was compared between Rab11FIP1 KO, Rab11FIP2 KO, and heterozygous littermates. Rab11FIP1 KO mice showed normal fertility and body weight gain. More frequent lymphoid patches and infiltration of macrophages and neutrophils were identified in Rab11FIP1 KO mice before the development of rectal prolapse compared with control mice. The population of trefoil factor 3 (TFF3)-positive goblet cells was significantly lower, and the ratio of proliferative to nonproliferative cells was higher in Rab11FIP1 KO colons. Transcription signatures indicated that Rab11FIP1 deletion downregulated genes that mediate stress tolerance response, whereas genes mediating the response to infection were significantly upregulated, consistent with the inflammatory responses in the steady state. Lack of Rab11FIP1 also resulted in abnormal accumulation of subapical vesicles in colonocytes and the internalization of transmembrane mucin, MUC13, with Rab14. After DSS treatment, Rab11FIP1 KO mice showed greater body weight loss and more severe mucosal damage than those in heterozygous littermates. These findings suggest that Rab11FIP1 is important for cytoprotection mechanisms and for the maintenance of colonic mucosal integrity.NEW & NOTEWORTHY Although Rab11FIP1 is important in membrane trafficking in epithelial cells, the gastrointestinal phenotype of Rab11FIP1 knockout (KO) mice had never been reported. This study demonstrated that Rab11FIP1 loss induces mistrafficking of Rab14 and MUC13 and decreases in colonic goblet cells, resulting in impaired mucosal integrity.
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Affiliation(s)
- Sudiksha Rathan-Kumar
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Joseph T Roland
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Michael Momoh
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Anna Goldstein
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Lynne A Lapierre
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Elizabeth Manning
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Louise Mitchell
- Cancer Research UK Beatson Institute, Glasgow, Scotland, United Kingdom
| | - Jim Norman
- Cancer Research UK Beatson Institute, Glasgow, Scotland, United Kingdom
| | - Izumi Kaji
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - James R Goldenring
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
- Nashville Veterans Affairs Medical Center, Nashville, Tennessee
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Nassari S, Lacarrière-Keïta C, Lévesque D, Boisvert FM, Jean S. Rab21 in enterocytes participates in intestinal epithelium maintenance. Mol Biol Cell 2022; 33:ar32. [PMID: 35171715 PMCID: PMC9250356 DOI: 10.1091/mbc.e21-03-0139] [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] [Indexed: 11/11/2022] Open
Abstract
Membrane trafficking is defined as the vesicular transport of proteins into, out of, and throughout the cell. In intestinal enterocytes, defects in endocytic/recycling pathways result in impaired function and are linked to diseases. However, how these trafficking pathways regulate intestinal tissue homeostasis is poorly understood. Using the Drosophila intestine as an in vivo system, we investigated enterocyte-specific functions for the early endosomal machinery. We focused on Rab21, which regulates specific steps in early endosomal trafficking. Depletion of Rab21 in enterocytes led to abnormalities in intestinal morphology, with deregulated cellular equilibrium associated with a gain in mitotic cells and increased cell death. Increases in apoptosis and Yorkie signaling were responsible for compensatory proliferation and tissue inflammation. Using an RNAi screen, we identified regulators of autophagy and membrane trafficking that phenocopied Rab21 knockdown. We further showed that Rab21 knockdown-induced hyperplasia was rescued by inhibition of epidermal growth factor receptor signaling. Moreover, quantitative proteomics identified proteins affected by Rab21 depletion. Of these, we validated changes in apolipoprotein ApoLpp and the trehalose transporter Tret1-1, indicating roles for enterocyte Rab21 in lipid and carbohydrate homeostasis, respectively. Our data shed light on an important role for early endosomal trafficking, and Rab21, in enterocyte-mediated intestinal epithelium maintenance. [Media: see text] [Media: see text].
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Affiliation(s)
- Sonya Nassari
- Faculté de Médecine et des Sciences de la Santé, Department of Immunology and Cell Biology, Université de Sherbrooke, 3201 Rue Jean Mignault, Sherbrooke, Québec J1E 4K8, Canada
| | - Camille Lacarrière-Keïta
- Faculté de Médecine et des Sciences de la Santé, Department of Immunology and Cell Biology, Université de Sherbrooke, 3201 Rue Jean Mignault, Sherbrooke, Québec J1E 4K8, Canada
| | - Dominique Lévesque
- Faculté de Médecine et des Sciences de la Santé, Department of Immunology and Cell Biology, Université de Sherbrooke, 3201 Rue Jean Mignault, Sherbrooke, Québec J1E 4K8, Canada
| | - François-Michel Boisvert
- Faculté de Médecine et des Sciences de la Santé, Department of Immunology and Cell Biology, Université de Sherbrooke, 3201 Rue Jean Mignault, Sherbrooke, Québec J1E 4K8, Canada
| | - Steve Jean
- Faculté de Médecine et des Sciences de la Santé, Department of Immunology and Cell Biology, Université de Sherbrooke, 3201 Rue Jean Mignault, Sherbrooke, Québec J1E 4K8, Canada
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Lv Y, Wen J, Fang Y, Zhang H, Zhang J. Corticotropin-releasing factor receptor 1 (CRF-R1) antagonists: Promising agents to prevent visceral hypersensitivity in irritable bowel syndrome. Peptides 2022; 147:170705. [PMID: 34822913 DOI: 10.1016/j.peptides.2021.170705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 11/20/2021] [Accepted: 11/22/2021] [Indexed: 11/17/2022]
Abstract
Corticotropin-releasing factor (CRF) is a 41-amino acid polypeptide that coordinates the endocrine system, autonomic nervous system, immune system, and physiological behavior. CRF is a signaling regulator in the neuro-endocrine-immune (NEI) network that mediates visceral hypersensitivity. Rodent models to simulate changes in intestinal motility similar to those reported in the irritable bowel syndrome (IBS), demonstrate that the CRF receptor 1 (CRF-R1) mediates intestinal hypersensitivity under many conditions. However, the translation of preclinical studies into clinical trials has not been successful possibly due to the lack of sufficient understanding of the multiple variants of CRF-R1 and CRF-R1 antagonists. Investigating the sites of action of central and peripheral CRF is critical for accelerating the translation from preclinical to clinical studies.
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Affiliation(s)
- Yuanxia Lv
- School of Pharmacy, North Sichuan Medical College, Nanchong City, China.
| | - Jing Wen
- School of Pharmacy, North Sichuan Medical College, Nanchong City, China.
| | - Yingying Fang
- School of Pharmacy, North Sichuan Medical College, Nanchong City, China.
| | - Haoyuan Zhang
- Department of Clinical Medicine, North Sichuan Medical College, Nanchong City, China.
| | - Jianwu Zhang
- School of Pharmacy, North Sichuan Medical College, Nanchong City, China.
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10
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Christakos S. Vitamin D: A Critical Regulator of Intestinal Physiology. JBMR Plus 2021; 5:e10554. [PMID: 34950825 PMCID: PMC8674771 DOI: 10.1002/jbm4.10554] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 08/10/2021] [Indexed: 01/01/2023] Open
Abstract
Calcium is required for the functioning of numerous biological processes and is essential for skeletal health. The major source of new calcium is from the diet. The central role of vitamin D in the maintenance of calcium homeostasis is to increase the absorption of ingested calcium from the intestine. The critical importance of vitamin D in this process is noted in the causal link between vitamin D deficiency and rickets, as well as in studies using genetically modified mice including mice deficient in the vitamin D receptor (Vdr null mice) or in the cytochrome P‐450 enzyme, 25‐hydroxyvitamin D3‐1α‐ hydroxylase (CYP27B1) that converts 25‐hydroxyvitamin D3 to the hormonally active form of vitamin D, 1,25‐dihydroxyvitamin D3 [1,25(OH)2D3] (Cyp27b1 null mice). When these mice are fed diets with high calcium and lactose, rickets is prevented. The studies using mouse models provide supporting evidence indicating that the major physiological function of 1,25(OH)2D3/VDR is intestinal calcium absorption. This review summarizes what is known about mechanisms involved in vitamin D‐regulated intestinal calcium absorption. Recent studies suggest that vitamin D does not affect a single entity, but that a complex network of calcium‐regulating components is involved in the process of 1,25(OH)2D3‐mediated active intestinal calcium absorption. In addition, numerous 1,25(OH)2D3 actions in the intestine have been described independent of calcium absorption. Although the translatability to humans requires further definition, an overview is presented that provides compelling evidence from the laboratory of 1,25(OH)2D3 intestinal effects, which include the regulation of adhesion molecules to enhance barrier function, the regulation of intestinal stem cell function, cellular homeostasis of other divalent cations, the regulation of drug metabolizing enzymes, and anti‐inflammatory effects. © 2021 The Author. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Sylvia Christakos
- Department of Microbiology, Biochemistry and Molecular Genetics Rutgers, the State University of New Jersey, New Jersey Medical School Newark NJ USA
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11
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Goswami S, Flores J, Balasubramanian I, Bandyopadhyay S, Joseph I, Bianchi-Smak J, Dhawan P, Mücahit DM, Yu S, Christakos S, Gao N. 1,25-Dihydroxyvitamin D 3 and dietary vitamin D reduce inflammation in mice lacking intestinal epithelial cell Rab11a. J Cell Physiol 2021; 236:8148-8159. [PMID: 34192357 PMCID: PMC9161497 DOI: 10.1002/jcp.30486] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 05/18/2021] [Accepted: 06/15/2021] [Indexed: 12/23/2022]
Abstract
A number of studies have examined the effects of 1,25-dihydroxyvitamin D3 (1,25(OH)2 D3 ) on intestinal inflammation driven by immune cells, while little information is currently available about its impact on inflammation caused by intestinal epithelial cell (IEC) defects. Mice lacking IEC-specific Rab11a a recycling endosome small GTPase resulted in increased epithelial cell production of inflammatory cytokines, notably IL-6 and early onset of enteritis. To determine whether vitamin D supplementation may benefit hosts with epithelial cell-originated mucosal inflammation, we evaluated in vivo effects of injected 1,25(OH)2 D3 or dietary supplement of a high dose of vitamin D on the gut phenotypes of IEC-specific Rab11a knockout mice (Rab11aΔIEC ). 1,25(OH)2 D3 administered at 25 ng, two doses per mouse, by intraperitoneal injection, reduced inflammatory cytokine production in knockout mice compared to vehicle-injected mice. Remarkably, feeding mice with dietary vitamin D supplementation at 20,000 IU/kg spanning fetal and postnatal developmental stages led to improved bodyweights, reduced immune cell infiltration, and decreased inflammatory cytokines. We found that these vitamin D effects were accompanied by decreased NF-κB (p65) in the knockout intestinal epithelia, reduced tissue-resident macrophages, and partial restoration of epithelial morphology. Our study suggests that dietary vitamin D supplementation may prevent and limit intestinal inflammation in hosts with high susceptibility to chronic inflammation.
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Affiliation(s)
- Sayantani Goswami
- Department of Biological Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Juan Flores
- Department of Biological Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Iyshwarya Balasubramanian
- Department of Biological Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Sheila Bandyopadhyay
- Department of Biological Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Ivor Joseph
- Department of Biological Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Jared Bianchi-Smak
- Department of Biological Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Puneet Dhawan
- Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers, The State University of New Jersey, New Jersey Medical School, Newark, New Jersey, USA
| | - Derya M Mücahit
- Department of Biological Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Shiyan Yu
- Department of Biological Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
| | - Sylvia Christakos
- Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers, The State University of New Jersey, New Jersey Medical School, Newark, New Jersey, USA
| | - Nan Gao
- Department of Biological Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey, USA
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12
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Goswami S, Balasubramanian I, D'Agostino L, Bandyopadhyay S, Patel R, Avasthi S, Yu S, Goldenring JR, Bonder EM, Gao N. RAB11A-mediated YAP localization to adherens and tight junctions is essential for colonic epithelial integrity. J Biol Chem 2021; 297:100848. [PMID: 34058200 PMCID: PMC8254046 DOI: 10.1016/j.jbc.2021.100848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 05/21/2021] [Accepted: 05/27/2021] [Indexed: 12/16/2022] Open
Abstract
Within the intestinal epithelium, regulation of intracellular protein and vesicular trafficking is of utmost importance for barrier maintenance, immune responses, and tissue polarity. RAB11A is a small GTPase that mediates the anterograde transport of protein cargos to the plasma membrane. Loss of RAB11A-dependent trafficking in mature intestinal epithelial cells results in increased epithelial proliferation and nuclear accumulation of Yes-associated protein (YAP), a key Hippo-signaling transducer that senses cell–cell contacts and regulates tissue growth. However, it is unclear how RAB11A regulates YAP intracellular localizations. In this report, we examined the relationship of RAB11A to epithelial junctional complexes, YAP, and the associated consequences on colonic epithelial tissue repair. We found that RAB11A controls the biochemical associations of YAP with multiple components of adherens and tight junctions, including α-catenin, β-catenin, and Merlin, a tumor suppressor. In the absence of RAB11A and Merlin, we observed enhanced YAP–β-catenin complex formation and nuclear translocation. Upon chemical injury to the intestine, mice deficient in RAB11A were found to have reduced epithelial integrity, decreased YAP localization to adherens and tight junctions, and increased nuclear YAP accumulation in the colon epithelium. Thus, RAB11A-regulated trafficking regulates the Hippo–YAP signaling pathway for rapid reparative response after tissue injury.
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Affiliation(s)
- Sayantani Goswami
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | | | - Luca D'Agostino
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | | | - Radha Patel
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Shail Avasthi
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Shiyan Yu
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - James R Goldenring
- Department of Surgery, Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Edward M Bonder
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA.
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13
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Yu S, Balasubramanian I, Laubitz D, Tong K, Bandyopadhyay S, Lin X, Flores J, Singh R, Liu Y, Macazana C, Zhao Y, Béguet-Crespel F, Patil K, Midura-Kiela MT, Wang D, Yap GS, Ferraris RP, Wei Z, Bonder EM, Häggblom MM, Zhang L, Douard V, Verzi MP, Cadwell K, Kiela PR, Gao N. Paneth Cell-Derived Lysozyme Defines the Composition of Mucolytic Microbiota and the Inflammatory Tone of the Intestine. Immunity 2021; 53:398-416.e8. [PMID: 32814028 DOI: 10.1016/j.immuni.2020.07.010] [Citation(s) in RCA: 97] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 03/26/2020] [Accepted: 07/15/2020] [Indexed: 02/07/2023]
Abstract
Paneth cells are the primary source of C-type lysozyme, a β-1,4-N-acetylmuramoylhydrolase that enzymatically processes bacterial cell walls. Paneth cells are normally present in human cecum and ascending colon, but are rarely found in descending colon and rectum; Paneth cell metaplasia in this region and aberrant lysozyme production are hallmarks of inflammatory bowel disease (IBD) pathology. Here, we examined the impact of aberrant lysozyme production in colonic inflammation. Targeted disruption of Paneth cell lysozyme (Lyz1) protected mice from experimental colitis. Lyz1-deficiency diminished intestinal immune responses to bacterial molecular patterns and resulted in the expansion of lysozyme-sensitive mucolytic bacteria, including Ruminococcus gnavus, a Crohn's disease-associated pathobiont. Ectopic lysozyme production in colonic epithelium suppressed lysozyme-sensitive bacteria and exacerbated colitis. Transfer of R. gnavus into Lyz1-/- hosts elicited a type 2 immune response, causing epithelial reprograming and enhanced anti-colitogenic capacity. In contrast, in lysozyme-intact hosts, processed R. gnavus drove pro-inflammatory responses. Thus, Paneth cell lysozyme balances intestinal anti- and pro-inflammatory responses, with implications for IBD.
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Affiliation(s)
- Shiyan Yu
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | | | - Daniel Laubitz
- Department of Pediatrics, University of Arizona, Tucson, AZ, USA
| | - Kevin Tong
- Department of Genetics, Rutgers University, Piscataway, NJ, USA
| | | | - Xiang Lin
- Department of Computer Science, New Jersey Institute of Technology, Newark, NJ, USA
| | - Juan Flores
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Rajbir Singh
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Yue Liu
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Carlos Macazana
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Yanlin Zhao
- Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Fabienne Béguet-Crespel
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Karuna Patil
- Department of Pediatrics, University of Arizona, Tucson, AZ, USA
| | | | - Daniel Wang
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - George S Yap
- Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Ronaldo P Ferraris
- Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Zhi Wei
- Department of Computer Science, New Jersey Institute of Technology, Newark, NJ, USA
| | - Edward M Bonder
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Max M Häggblom
- Department of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ, USA
| | - Lanjing Zhang
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA; Department of Pathology, Princeton Medical Center, Plainsboro, NJ, USA
| | - Veronique Douard
- Micalis Institute, Institut National de la Recherche Agronomique (INRA), AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | - Michael P Verzi
- Department of Genetics, Rutgers University, Piscataway, NJ, USA
| | - Ken Cadwell
- Department of Microbiology and Kimmel Center for Biology and Medicine at the Skirball Institute, New York University School of Medicine, New York, NY, USA
| | - Pawel R Kiela
- Department of Pediatrics, University of Arizona, Tucson, AZ, USA; Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA.
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14
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Stypulkowski E, Feng Q, Joseph I, Farrell V, Flores J, Yu S, Sakamori R, Sun J, Bandyopadhyay S, Das S, Dobrowolski R, Bonder EM, Chen MH, Gao N. Rab8 attenuates Wnt signaling and is required for mesenchymal differentiation into adipocytes. J Biol Chem 2021; 296:100488. [PMID: 33662399 PMCID: PMC8042397 DOI: 10.1016/j.jbc.2021.100488] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/18/2021] [Accepted: 02/26/2021] [Indexed: 12/11/2022] Open
Abstract
Differentiation of mesenchymal stem cells into adipocyte requires coordination of external stimuli and depends upon the functionality of the primary cilium. The Rab8 small GTPases are regulators of intracellular transport of membrane-bound structural and signaling cargo. However, the physiological contribution of the intrinsic trafficking network controlled by Rab8 to mesenchymal tissue differentiation has not been fully defined in vivo and in primary tissue cultures. Here, we show that mouse embryonic fibroblasts (MEFs) lacking Rab8 have severely impaired adipocyte differentiation in vivo and ex vivo. Immunofluorescent localization and biochemical analyses of Rab8a-deficient, Rab8b-deficient, and Rab8a and Rab8b double-deficient MEFs revealed that Rab8 controls the Lrp6 vesicular compartment, clearance of basal signalosome, traffic of frizzled two receptor, and thereby a proper attenuation of Wnt signaling in differentiating MEFs. Upon induction of adipogenesis program, Rab8a- and Rab8b-deficient MEFs exhibited severely defective lipid-droplet formation and abnormal cilia morphology, despite overall intact cilia growth and ciliary cargo transport. Our results suggest that intracellular Rab8 traffic regulates induction of adipogenesis via proper positioning of Wnt receptors for signaling control in mesenchymal cells.
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Affiliation(s)
- Ewa Stypulkowski
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Qiang Feng
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Ivor Joseph
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Victoria Farrell
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Juan Flores
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Shiyan Yu
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Ryotaro Sakamori
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Jiaxin Sun
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | | | - Soumyashree Das
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Radek Dobrowolski
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Edward M Bonder
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA
| | - Miao-Hsueh Chen
- Department of Pediatrics, Baylor College of Medicine, Children's Nutrition Research Center, Houston, Texas, USA.
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, New Jersey, USA; Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey, USA.
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15
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Redhai S, Boutros M. The Role of Organelles in Intestinal Function, Physiology, and Disease. Trends Cell Biol 2021; 31:485-499. [PMID: 33551307 DOI: 10.1016/j.tcb.2021.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/04/2021] [Accepted: 01/11/2021] [Indexed: 02/06/2023]
Abstract
The intestine maintains homeostasis by coordinating internal biological processes to adjust to fluctuating external conditions. The intestinal epithelium is continuously renewed and comprises multiple cell types, including absorptive cells, secretory cells, and resident stem cells. An important feature of this organ is its ability to coordinate many processes including cell proliferation, differentiation, regeneration, damage/stress response, immune activity, feeding behavior, and age-related changes by using conserved signaling pathways. However, the subcellular spatial organization of these signaling events and the organelles involved has only recently been studied in detail. Here we discuss how organelles of intestinal cells serve to initiate, mediate, and terminate signals, that are vital for homeostasis.
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Affiliation(s)
- Siamak Redhai
- German Cancer Research Center (DKFZ), Division Signaling and Functional Genomics, and Heidelberg University, BioQuant and Medical Faculty Mannheim, D-69120 Heidelberg, Germany.
| | - Michael Boutros
- German Cancer Research Center (DKFZ), Division Signaling and Functional Genomics, and Heidelberg University, BioQuant and Medical Faculty Mannheim, D-69120 Heidelberg, Germany.
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16
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Ferro E, Bosia C, Campa CC. RAB11-Mediated Trafficking and Human Cancers: An Updated Review. BIOLOGY 2021; 10:biology10010026. [PMID: 33406725 PMCID: PMC7823896 DOI: 10.3390/biology10010026] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/15/2020] [Accepted: 12/30/2020] [Indexed: 12/12/2022]
Abstract
Simple Summary The small GTPase RAB11 is a master regulator of both vesicular trafficking and membrane dynamic defining the surface proteome of cellular membranes. As a consequence, the alteration of RAB11 activity induces changes in both the sensory and the transduction apparatuses of cancer cells leading to tumor progression and invasion. Here, we show that this strictly depends on RAB11′s ability to control the sorting of signaling receptors from endosomes. Therefore, RAB11 is a potential therapeutic target over which to develop future therapies aimed at dampening the acquisition of aggressive traits by cancer cells. Abstract Many disorders block and subvert basic cellular processes in order to boost their progression. One protein family that is prone to be altered in human cancers is the small GTPase RAB11 family, the master regulator of vesicular trafficking. RAB11 isoforms function as membrane organizers connecting the transport of cargoes towards the plasma membrane with the assembly of autophagic precursors and the generation of cellular protrusions. These processes dramatically impact normal cell physiology and their alteration significantly affects the survival, progression and metastatization as well as the accumulation of toxic materials of cancer cells. In this review, we discuss biological mechanisms ensuring cargo recognition and sorting through a RAB11-dependent pathway, a prerequisite to understand the effect of RAB11 alterations in human cancers.
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Affiliation(s)
- Elsi Ferro
- Department of Applied Science and Technology, Politecnico di Torino, 24 Corso Duca degli Abruzzi, 10129 Turin, Italy; (E.F.); (C.B.)
- Italian Institute for Genomic Medicine, c/o IRCCS, Str. Prov. le 142, km 3.95, 10060 Candiolo, Italy
| | - Carla Bosia
- Department of Applied Science and Technology, Politecnico di Torino, 24 Corso Duca degli Abruzzi, 10129 Turin, Italy; (E.F.); (C.B.)
- Italian Institute for Genomic Medicine, c/o IRCCS, Str. Prov. le 142, km 3.95, 10060 Candiolo, Italy
| | - Carlo C. Campa
- Department of Applied Science and Technology, Politecnico di Torino, 24 Corso Duca degli Abruzzi, 10129 Turin, Italy; (E.F.); (C.B.)
- Italian Institute for Genomic Medicine, c/o IRCCS, Str. Prov. le 142, km 3.95, 10060 Candiolo, Italy
- Correspondence:
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17
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Yao H, Li C, He F, Song T, Brosseau JP, Wang H, Lu H, Fang C, Shi H, Lan J, Fang JY, Xu J. A peptidic inhibitor for PD-1 palmitoylation targets its expression and functions. RSC Chem Biol 2020; 2:192-205. [PMID: 34458782 PMCID: PMC8341464 DOI: 10.1039/d0cb00157k] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/05/2020] [Indexed: 02/05/2023] Open
Abstract
Programmed cell death protein 1 (PD-1) is a crucial anticancer target, but the relatively low response rate and acquired resistance to existing antibody drugs highlight an urgent need to develop alternative targeting strategies. Here, we report the palmitoylation of PD-1, discover the main DHHC enzyme for this modification, reveal the mechanism of its effect on PD-1 protein stability, and rationally develop a peptide for targeting PD-1 expression. Palmitoylation promoted the trafficking of PD-1 to the recycling endosome, thus preventing its lysosome-dependent degradation. Palmitoylation of PD-1, but not of PD-L1, promoted mTOR signaling and tumor cell proliferation, and targeting palmitoylation displayed significant anti-tumor effects in a three-dimensional culture system. A peptide was designed to competitively inhibit PD-1 palmitoylation and expression, opening a new route for developing PD-1 inhibitors and combinatorial cancer immunotherapy. We show for the first time that PD-1 is palmitoylated, identify DHHC9 as the predominant enzyme for its palmitoylation, and reveal the molecular mechanisms underlying its effects on PD-1 stability and functions. Importantly, we also designed PD1-PALM, a competitive inhibitor of PD-1 palmitoylation, and this first-in-class molecule may inspire the development of new checkpoint inhibitors.![]()
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Affiliation(s)
- Han Yao
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University 145 Middle Shandong Road Shanghai 200001 China
| | - Chushu Li
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University 145 Middle Shandong Road Shanghai 200001 China
| | - Fang He
- Institutes of Biomedical Sciences, Fudan University, and Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Fudan University Shanghai China
| | - Teng Song
- Institutes of Biomedical Sciences, Fudan University, and Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Fudan University Shanghai China
| | - Jean-Philippe Brosseau
- Department of Biochemistry and functional Genomics, University of Sherbrooke 3001 Jean-Mignault Sherbrooke J1E4K8 Canada
| | - Huanbin Wang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University 145 Middle Shandong Road Shanghai 200001 China
| | - Haojie Lu
- Department of Chemistry and Institutes of Biomedical Sciences, Fudan University Shanghai China
| | - Caiyun Fang
- Department of Chemistry and Institutes of Biomedical Sciences, Fudan University Shanghai China
| | - Hubing Shi
- Laboratory of Tumor Targeted and Immune Therapy, Clinical Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center Chengdu China
| | - Jiang Lan
- Laboratory of Tumor Targeted and Immune Therapy, Clinical Research Center for Breast, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center Chengdu China
| | - Jing-Yuan Fang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University 145 Middle Shandong Road Shanghai 200001 China
| | - Jie Xu
- Institutes of Biomedical Sciences, Fudan University, and Zhongshan-Xuhui Hospital, Shanghai Key Laboratory of Medical Epigenetics, Fudan University Shanghai China
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18
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Luo Y, Yu MH, Yan YR, Zhou Y, Qin SL, Huang YZ, Qin J, Zhong M. Rab27A promotes cellular apoptosis and ROS production by regulating the miRNA-124-3p/STAT3/RelA signalling pathway in ulcerative colitis. J Cell Mol Med 2020; 24:11330-11342. [PMID: 32815642 PMCID: PMC7576264 DOI: 10.1111/jcmm.15726] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/25/2020] [Accepted: 06/29/2020] [Indexed: 12/15/2022] Open
Abstract
Ulcerative colitis (UC) is a multifactorial inflammatory disease, and increasing evidence has demonstrated that the mechanism of UC pathogenesis is associated with excessive cellular apoptosis and reactive oxygen species (ROS) production. However, their function and molecular mechanisms related to UC remain unknown. In this study, Rab27A mRNA and protein were proven to be overexpressed in intestinal epithelial cells of UC patients and DSS‐induced colitis mice, compared with control (P < 0.05). And Rab27A silencing inhibits inflammatory process in DSS‐induced colitis mice (P < 0.05). Then, it was shown that knockdown of Rab27A suppressed apoptosis and ROS production through modulation of miR‐124‐3p, whereas overexpression of Rab27A promoted apoptosis and ROS production in LPS‑induced colonic cells. In addition, enhanced expression of miR‐124‐3p attenuated apoptosis and ROS production by targeting regulation of STAT3 in LPS‑induced colonic cells. Mechanistically, we found Rab27A reduced the expression and activity of miR‐124‐3p to activate STAT3/RelA signalling pathway and promote apoptosis and ROS production in LPS‑induced colonic cells, whereas overexpression of miR‐124‐3p abrogated these effects of Rab27A. More importantly, animal experiments illustrated that ectopic expression of Rab27A promoted the inflammatory process, whereas overexpression of miR‐124‐3p might interfere with the inflammatory effect in DSS‐induced colitis mice. In summary, Rab27A might modulate the miR‐124‐3p/STAT3/RelA axis to promote apoptosis and ROS production in inflammatory colonic cells, suggesting that Rab27A as a novel therapeutic target for the prevention and treatment of UC patients.
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Affiliation(s)
- Yang Luo
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Min-Hao Yu
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Ya-Ru Yan
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yong Zhou
- Department of Gastrointestinal Surgery, Jiading Hospital of Traditional Chinese Medicine, Shanghai, China
| | - Shao-Lan Qin
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Yi-Zhou Huang
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Jun Qin
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Ming Zhong
- Department of Gastrointestinal Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, P.R. China
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19
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Homma Y, Hiragi S, Fukuda M. Rab family of small GTPases: an updated view on their regulation and functions. FEBS J 2020; 288:36-55. [PMID: 32542850 PMCID: PMC7818423 DOI: 10.1111/febs.15453] [Citation(s) in RCA: 198] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/27/2020] [Accepted: 06/11/2020] [Indexed: 12/13/2022]
Abstract
The Rab family of small GTPases regulates intracellular membrane trafficking by orchestrating the biogenesis, transport, tethering, and fusion of membrane‐bound organelles and vesicles. Like other small GTPases, Rabs cycle between two states, an active (GTP‐loaded) state and an inactive (GDP‐loaded) state, and their cycling is catalyzed by guanine nucleotide exchange factors (GEFs) and GTPase‐activating proteins (GAPs). Because an active form of each Rab localizes on a specific organelle (or vesicle) and recruits various effector proteins to facilitate each step of membrane trafficking, knowing when and where Rabs are activated and what effectors Rabs recruit is crucial to understand their functions. Since the discovery of Rabs, they have been regarded as one of the central hubs for membrane trafficking, and numerous biochemical and genetic studies have revealed the mechanisms of Rab functions in recent years. The results of these studies have included the identification and characterization of novel GEFs, GAPs, and effectors, as well as post‐translational modifications, for example, phosphorylation, of Rabs. Rab functions beyond the simple effector‐recruiting model are also emerging. Furthermore, the recently developed CRISPR/Cas technology has enabled acceleration of knockout analyses in both animals and cultured cells and revealed previously unknown physiological roles of many Rabs. In this review article, we provide the most up‐to‐date and comprehensive lists of GEFs, GAPs, effectors, and knockout phenotypes of mammalian Rabs and discuss recent findings in regard to their regulation and functions.
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Affiliation(s)
- Yuta Homma
- Laboratory of Membrane Trafficking Mechanisms, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Shu Hiragi
- Laboratory of Membrane Trafficking Mechanisms, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Mitsunori Fukuda
- Laboratory of Membrane Trafficking Mechanisms, Department of Integrative Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Japan
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20
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Iwaki A, Moriwaki K, Sobajima T, Taniguchi M, Yoshimura SI, Kunii M, Kanda S, Kamada Y, Miyoshi E, Harada A. Loss of Rab6a in the small intestine causes lipid accumulation and epithelial cell death from lactation. FASEB J 2020; 34:9450-9465. [PMID: 32496646 DOI: 10.1096/fj.202000028r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 04/24/2020] [Accepted: 05/05/2020] [Indexed: 11/11/2022]
Abstract
Intestinal epithelial cells (IECs) are not only responsible for the digestion and absorption of dietary substrates but also function as a first line of host defense against commensal and pathogenic luminal bacteria. Disruption of the epithelial layer causes malnutrition and enteritis. Rab6 is a small GTPase localized to the Golgi, where it regulates anterograde and retrograde transport by interacting with various effector proteins. Here, we generated mice with IEC-specific deletion of Rab6a (Rab6a∆IEC mice). While Rab6aΔIEC mice were born at the Mendelian ratio, they started to show IEC death, inflammation, and bleeding in the small intestine shortly after birth, and these changes culminated in early postnatal death. We further found massive lipid accumulation in the IECs of Rab6a∆IEC neonates. In contrast to Rab6a∆IEC neonates, knockout embryos did not show any of these abnormalities. Lipid accumulation and IEC death became evident when Rab6a∆IEC embryos were nursed by a foster mother, suggesting that dietary milk-derived lipids accumulated in Rab6a-deficient IECs and triggered IEC death. These results indicate that Rab6a plays a crucial role in regulating the lipid transport and maintaining tissue integrity.
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Affiliation(s)
- Ayano Iwaki
- Department of Cell Biology, Graduate School of Medicine, Osaka University, Suita, Japan.,Department of Molecular Biochemistry and Clinical Investigation, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Kenta Moriwaki
- Department of Cell Biology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Tomoaki Sobajima
- Department of Cell Biology, Graduate School of Medicine, Osaka University, Suita, Japan.,Department of Molecular Biochemistry and Clinical Investigation, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Manabu Taniguchi
- Department of Cell Biology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Shin-Ichiro Yoshimura
- Department of Cell Biology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Masataka Kunii
- Department of Cell Biology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Satoshi Kanda
- Department of Cell Biology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Yoshihiro Kamada
- Department of Molecular Biochemistry and Clinical Investigation, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Eiji Miyoshi
- Department of Molecular Biochemistry and Clinical Investigation, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Akihiro Harada
- Department of Cell Biology, Graduate School of Medicine, Osaka University, Suita, Japan
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21
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Cytoskeletal Organization and Cell Polarity in the Pathogenesis of Crohn’s Disease. Clin Rev Allergy Immunol 2020; 60:164-174. [DOI: 10.1007/s12016-020-08795-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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22
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Nie Y, Yu S, Li Q, Nirala NK, Amcheslavsky A, Edwards YJK, Shum PW, Jiang Z, Wang W, Zhang B, Gao N, Ip YT. Oncogenic Pathways and Loss of the Rab11 GTPase Synergize To Alter Metabolism in Drosophila. Genetics 2019; 212:1227-1239. [PMID: 31213502 PMCID: PMC6707446 DOI: 10.1534/genetics.119.302137] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 06/10/2019] [Indexed: 01/06/2023] Open
Abstract
Colorectal cancer is a complex disease driven by well-established mutations such as APC and other yet to be identified pathways. The GTPase Rab11 regulates endosomal protein trafficking, and previously we showed that loss of Rab11 caused intestinal inflammation and hyperplasia in mice and flies. To test the idea that loss of Rab11 may promote cancer progression, we have analyzed archival human patient tissues and observed that 51 out of 70 colon cancer tissues had lower Rab11 protein staining. By using the Drosophila midgut model, we have found that loss of Rab11 can lead to three changes that may relate to cancer progression. First is the disruption of enterocyte polarity based on staining of the FERM domain protein Coracle. Second is an increased proliferation due to an increased expression of the JAK-STAT pathway ligand Upd3. Third is an increased expression of ImpL2, which is an IGFBP7 homolog and can suppress metabolism. Furthermore, loss of Rab11 can act synergistically with the oncoprotein RasV12 to regulate these cancer-related phenotypes.
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Affiliation(s)
- Yingchao Nie
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Shiyan Yu
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Qi Li
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Niraj K Nirala
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Alla Amcheslavsky
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Yvonne J K Edwards
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Patrick W Shum
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Zhong Jiang
- Department of Pathology, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Wei Wang
- Guangzhou RiboBio Co., Ltd., Guangzhou 510663, China
| | - Biliang Zhang
- Guangzhou RiboBio Co., Ltd., Guangzhou 510663, China
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Y Tony Ip
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts 01605
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23
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Taguchi T, Mukai K. Innate immunity signalling and membrane trafficking. Curr Opin Cell Biol 2019; 59:1-7. [DOI: 10.1016/j.ceb.2019.02.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 02/13/2019] [Accepted: 02/13/2019] [Indexed: 12/29/2022]
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24
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D'Agostino L, Nie Y, Goswami S, Tong K, Yu S, Bandyopadhyay S, Flores J, Zhang X, Balasubramanian I, Joseph I, Sakamori R, Farrell V, Li Q, Yang CS, Gao B, Ferraris RP, Yehia G, Bonder EM, Goldenring JR, Verzi MP, Zhang L, Ip YT, Gao N. Recycling Endosomes in Mature Epithelia Restrain Tumorigenic Signaling. Cancer Res 2019; 79:4099-4112. [PMID: 31239271 DOI: 10.1158/0008-5472.can-18-4075] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 05/11/2019] [Accepted: 06/11/2019] [Indexed: 11/16/2022]
Abstract
The effects of polarized membrane trafficking in mature epithelial tissue on cell growth and cancer progression have not been fully explored in vivo. A majority of colorectal cancers have reduced and mislocalized Rab11, a small GTPase dedicated to trafficking of recycling endosomes. Patients with low Rab11 protein expression have poor survival rates. Using genetic models across species, we show that intact recycling endosome function restrains aberrant epithelial growth elicited by APC or RAS mutations. Loss of Rab11 protein led to epithelial dysplasia in early animal development and synergized with oncogenic pathways to accelerate tumor progression initiated by carcinogen, genetic mutation, or aging. Transcriptomic analysis uncovered an immediate expansion of the intestinal stem cell pool along with cell-autonomous Yki/Yap activation following disruption of Rab11a-mediated recycling endosomes. Intestinal tumors lacking Rab11a traffic exhibited marked elevation of nuclear Yap, upd3/IL6-Stat3, and amphiregulin-MAPK signaling, whereas suppression of Yki/Yap or upd3/IL6 reduced gut epithelial dysplasia and hyperplasia. Examination of Rab11a function in enteroids or cultured cell lines suggested that this endosome unit is required for suppression of the Yap pathway by Hippo kinases. Thus, recycling endosomes in mature epithelia constitute key tumor suppressors, loss of which accelerates carcinogenesis. SIGNIFICANCE: Recycling endosome traffic in mature epithelia constitutes a novel tumor suppressing mechanism.
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Affiliation(s)
- Luca D'Agostino
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
| | - Yingchao Nie
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Sayantani Goswami
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
| | - Kevin Tong
- Department of Genetics, Rutgers University, Piscataway, New Jersey
| | - Shiyan Yu
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
| | | | - Juan Flores
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
| | - Xiao Zhang
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
| | | | - Ivor Joseph
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
| | - Ryotaro Sakamori
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
| | - Victoria Farrell
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
| | - Qi Li
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Chung S Yang
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey
| | - Bin Gao
- Department of Internal Medicine, Taixing Chinese Medicine Hospital, Taixing, Jiangsu, China
| | - Ronaldo P Ferraris
- Department of Pharmacology, Physiology, and Neuroscience, Rutgers New Jersey Medical School, Newark, New Jersey
| | - Ghassan Yehia
- Rutgers Genome Editing Core Facility, Rutgers University, New Brunswick, New Jersey
| | - Edward M Bonder
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
| | - James R Goldenring
- Department of Surgery, Cell and Developmental Biology, and Epithelial Center, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Michael P Verzi
- Department of Genetics, Rutgers University, Piscataway, New Jersey.,Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
| | - Lanjing Zhang
- Department of Biological Sciences, Rutgers University, Newark, New Jersey.,Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, New Jersey.,Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey.,Department of Pathology, Princeton Medical Center, Plainsboro, New Jersey
| | - Y Tony Ip
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts.
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, New Jersey. .,Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
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25
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Koike S, Yamasaki K, Yamauchi T, Shimada-Omori R, Tsuchiyama K, Aiba S. Toll-like receptor 2 utilizes RAB11A for melanosome transfer from melanocytes to keratinocytes. J Dermatol Sci 2019; 94:310-312. [PMID: 31079998 DOI: 10.1016/j.jdermsci.2019.04.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/14/2019] [Accepted: 04/24/2019] [Indexed: 11/13/2022]
Affiliation(s)
- Saaya Koike
- Department of Dermatology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Kenshi Yamasaki
- Department of Dermatology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Takeshi Yamauchi
- Department of Dermatology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Ryoko Shimada-Omori
- Department of Dermatology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Kenichiro Tsuchiyama
- Department of Dermatology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Setsuya Aiba
- Department of Dermatology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
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26
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A role for Rab11 in the homeostasis of the endosome-lysosomal pathway. Exp Cell Res 2019; 380:55-68. [PMID: 30981667 DOI: 10.1016/j.yexcr.2019.04.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 01/31/2019] [Accepted: 04/08/2019] [Indexed: 12/26/2022]
Abstract
The small GTPases Rab11a and 11b are key regulators of membrane transport, localised to the recycling endosomes and also early endosomes. The function of Rab11 within the recycling pathway has been well defined, however, the role of Rab11 at the early endosomes remains poorly characterised. Here, we have generated HeLa cell lines devoid of either Rab11a or Rab11b using CRISPR/Cas9 to functionally dissect the roles of these two Rab11 family members in recycling and in the endosomal-lysosomal system. Both Rab11a and Rab11b contribute to the dynamics of tubulation arising from recycling endosomes whereas Rab11a has the major role in recycling of transferrin receptor. Deletion of either Rab11a or Rab11b resulted in the formation of enlarged early endosomes and perturbation of the endosomal-lysosomal pathway. Strikingly, Rab11a knock-out cells showed an increased density of functional late endosomes/lysosomes as well as lysotracker-positive organelles which were primarily concentrated in a perinuclear location, indicating that the homeostasis of the endosome/lysosome pathway had been perturbed. Moreover, in Rab11a knockout cells there was a functional defect in the intracellular recycling of the cation-independent mannose 6-phosphate receptor (CI-M6PR) between the late endosomes and the TGN, a defect associated with enhanced degradation of CI-M6PR. Expression of wild-type Rab11a in Rab11a knockout cells rescued the late endosome/lysosome phenotype. Overall, these results indicate that Rab11a and Rab11b have overlapping and distinct functions and that Rab11a, unexpectedly, plays a central role in the homeostasis of endosomal-lysosomal biogenesis.
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27
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Chai M, Su L, Hao X, Zhang M, Zheng L, Bi J, Han X, Yu B. Identification of genes and signaling pathways associated with arthrogryposis‑renal dysfunction‑cholestasis syndrome using weighted correlation network analysis. Int J Mol Med 2018; 42:2238-2246. [PMID: 30015832 DOI: 10.3892/ijmm.2018.3768] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 06/07/2018] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to identify the molecular basis of the arthrogryposis‑renal dysfunction‑cholestasis (ARC) syndrome, which is caused by mutations in the vacuolar protein sorting 33 homolog B (VPS33B) gene. The microarray dataset GSE83192, which contained six liver tissue samples from VPS33B knockout mice and four liver tissue samples from control mice, was downloaded from the Gene Expression Omnibus database. The differentially expressed genes (DEGs) were screened by the Limma package in R software. The DEGs most relevant to ARC were selected via weighted gene co‑expression network analysis to construct a protein‑protein interaction (PPI) network. In addition, module analysis was performed for the PPI network using the Molecular Complex Detection function. Functional and pathway enrichment analyses were also performed for DEGs in the PPI network. Potential drugs for ARC treatment were predicted using the Connectivity Map database. In total, 768 upregulated and 379 downregulated DEGs were detected in the VPS33B knockout mice, while three modules were identified from the PPI network constructed. The DEGs in module 1 (CD83, IL1B and TLR2) were mainly involved in the positive regulation of cytokine production and the Toll‑like receptor (TLR) signaling pathway. The DEGs in module 2 (COL1A1 and COL1A2) were significantly enriched with respect to cellular component organization, extracellular matrix‑receptor interactions and focal adhesion. The DEGs in module 3 (ABCG8 and ABCG3) were clearly associated with sterol absorption and transport. Furthermore, mercaptopurine was identified to be a potential drug (connectivity score=‑0.939) for ARC treatment. In conclusion, the results of the current study may help to further understand the pathology of ARC, and the DEGs identified in these modules may serve as therapeutic targets.
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Affiliation(s)
- Miao Chai
- Department of Clinical Laboratory, The First Hospital of Harbin, Harbin, Heilongjiang 150010, P.R. China
| | - Liju Su
- Department of Clinical Laboratory, The First Hospital of Harbin, Harbin, Heilongjiang 150010, P.R. China
| | - Xiaolei Hao
- Department of Clinical Laboratory, The First Hospital of Harbin, Harbin, Heilongjiang 150010, P.R. China
| | - Meng Zhang
- Department of Clinical Laboratory, The First Hospital of Harbin, Harbin, Heilongjiang 150010, P.R. China
| | - Lihui Zheng
- Department of Clinical Laboratory, The First Hospital of Harbin, Harbin, Heilongjiang 150010, P.R. China
| | - Jiabing Bi
- Department of Clinical Laboratory, The First Hospital of Harbin, Harbin, Heilongjiang 150010, P.R. China
| | - Xiao Han
- Department of Clinical Laboratory, The First Hospital of Harbin, Harbin, Heilongjiang 150010, P.R. China
| | - Bohai Yu
- Department of Clinical Laboratory, The First Hospital of Harbin, Harbin, Heilongjiang 150010, P.R. China
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28
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Yu S, Tong K, Zhao Y, Balasubramanian I, Yap GS, Ferraris RP, Bonder EM, Verzi MP, Gao N. Paneth Cell Multipotency Induced by Notch Activation following Injury. Cell Stem Cell 2018; 23:46-59.e5. [PMID: 29887318 PMCID: PMC6035085 DOI: 10.1016/j.stem.2018.05.002] [Citation(s) in RCA: 171] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 01/08/2018] [Accepted: 05/04/2018] [Indexed: 02/08/2023]
Abstract
Paneth cells are post-mitotic intestinal epithelial cells supporting the stem cell niche and mucosal immunity. Paneth cell pathologies are observed in various gastrointestinal diseases, but their plasticity and response to genomic and environmental challenges remain unclear. Using a knockin allele engineered at the mouse Lyz1 locus, we performed detailed Paneth cell-lineage tracing. Irradiation induced a subset of Paneth cells to proliferate and differentiate into villus epithelial cells. RNA sequencing (RNA-seq) revealed that Paneth cells sorted from irradiated mice acquired a stem cell-like transcriptome; when cultured in vitro, these individual Paneth cells formed organoids. Irradiation activated Notch signaling, and forced expression of Notch intracellular domain (NICD) in Paneth cells, but not Wnt/β-catenin pathway activation, induced their dedifferentiation. This study documents Paneth cell plasticity, particularly their ability to participate in epithelial replenishment following stem cell loss, adding to a growing body of knowledge detailing the molecular pathways controlling injury-induced regeneration.
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Affiliation(s)
- Shiyan Yu
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Kevin Tong
- Department of Genetics, Rutgers University, Piscataway, NJ 08854, USA
| | - Yanlin Zhao
- Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07101, USA
| | | | - George S Yap
- Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07101, USA
| | - Ronaldo P Ferraris
- Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, NJ 07101, USA
| | - Edward M Bonder
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Michael P Verzi
- Department of Genetics, Rutgers University, Piscataway, NJ 08854, USA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA; Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08903, USA.
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29
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Zhang X, Ren J, Wang J, Li S, Zou Q, Gao N. Receptor-mediated endocytosis generates nanomechanical force reflective of ligand identity and cellular property. J Cell Physiol 2018; 233:5908-5919. [PMID: 29243828 DOI: 10.1002/jcp.26400] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 12/12/2017] [Indexed: 01/07/2023]
Abstract
Whether environmental (thermal, chemical, and nutrient) signals generate quantifiable, nanoscale, mechanophysical changes in the cellular plasma membrane has not been well elucidated. Assessment of such mechanophysical properties of plasma membrane may shed lights on fundamental cellular process. Atomic force microscopic (AFM) measurement of the mechanical properties of live cells was hampered by the difficulty in accounting for the effects of the cantilever motion and the associated hydrodynamic force on the mechanical measurement. These challenges have been addressed in our recently developed control-based AFM nanomechanical measurement protocol, which enables a fast, noninvasive, broadband measurement of the real-time changes in plasma membrane elasticity in live cells. Here we show using this newly developed AFM platform that the plasma membrane of live mammalian cells exhibits a constant and quantifiable nanomechanical property, the membrane elasticity. This mechanical property sensitively changes in response to environmental factors, such as the thermal, chemical, and growth factor stimuli. We demonstrate that different chemical inhibitors of endocytosis elicit distinct changes in plasma membrane elastic modulus reflecting their specific molecular actions on the lipid configuration or the endocytic machinery. Interestingly, two different growth factors, EGF and Wnt3a, elicited distinct elastic force profiles revealed by AFM at the plasma membrane during receptor-mediated endocytosis. By applying this platform to genetically modified cells, we uncovered a previously unknown contribution of Cdc42, a key component of the cellular trafficking network, to EGF-stimulated endocytosis at plasma membrane. Together, this nanomechanical AFM study establishes an important foundation that is expandable and adaptable for investigation of cellular membrane evolution in response to various key extracellular signals.
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Affiliation(s)
- Xiao Zhang
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
| | - Juan Ren
- Department of Mechanical Engineering, Iowa State University, Ames, Iowa
| | - Jingren Wang
- Department of Mechanical and Aerospace Engineering, Rutgers University, Piscataway, New Jersey
| | - Shixie Li
- Department of Mechanical and Aerospace Engineering, Rutgers University, Piscataway, New Jersey
| | - Qingze Zou
- Department of Mechanical and Aerospace Engineering, Rutgers University, Piscataway, New Jersey
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
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30
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Schneeberger K, Roth S, Nieuwenhuis EES, Middendorp S. Intestinal epithelial cell polarity defects in disease: lessons from microvillus inclusion disease. Dis Model Mech 2018; 11:11/2/dmm031088. [PMID: 29590640 PMCID: PMC5894939 DOI: 10.1242/dmm.031088] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The intestinal epithelium is a highly organized tissue. The establishment of epithelial cell polarity, with distinct apical and basolateral plasma membrane domains, is pivotal for both barrier formation and for the uptake and vectorial transport of nutrients. The establishment of cell polarity requires a specialized subcellular machinery to transport and recycle proteins to their appropriate location. In order to understand and treat polarity-associated diseases, it is necessary to understand epithelial cell-specific trafficking mechanisms. In this Review, we focus on cell polarity in the adult mammalian intestine. We discuss how intestinal epithelial polarity is established and maintained, and how disturbances in the trafficking machinery can lead to a polarity-associated disorder, microvillus inclusion disease (MVID). Furthermore, we discuss the recent developments in studying MVID, including the creation of genetically manipulated cell lines, mouse models and intestinal organoids, and their uses in basic and applied research. Summary: Microvillus inclusion disease serves as a useful model to enhance our understanding of the intestinal trafficking and polarity machinery in health and disease.
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Affiliation(s)
- Kerstin Schneeberger
- Division of Paediatrics, Department of Paediatric Gastroenterology, Wilhelmina Children's Hospital, 3584 CT, Utrecht, The Netherlands
| | - Sabrina Roth
- Division of Paediatrics, Department of Paediatric Gastroenterology, Wilhelmina Children's Hospital, 3584 CT, Utrecht, The Netherlands
| | - Edward E S Nieuwenhuis
- Division of Paediatrics, Department of Paediatric Gastroenterology, Wilhelmina Children's Hospital, 3584 CT, Utrecht, The Netherlands
| | - Sabine Middendorp
- Division of Paediatrics, Department of Paediatric Gastroenterology, Wilhelmina Children's Hospital, 3584 CT, Utrecht, The Netherlands .,Regenerative Medicine Center Utrecht, University Medical Centre (UMC) Utrecht, 3584 CT, Utrecht, The Netherlands
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31
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Engevik AC, Goldenring JR. Trafficking Ion Transporters to the Apical Membrane of Polarized Intestinal Enterocytes. Cold Spring Harb Perspect Biol 2018; 10:cshperspect.a027979. [PMID: 28264818 DOI: 10.1101/cshperspect.a027979] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Epithelial cells lining the gastrointestinal tract require distinct apical and basolateral domains to function properly. Trafficking and insertion of enzymes and transporters into the apical brush border of intestinal epithelial cells is essential for effective digestion and absorption of nutrients. Specific critical ion transporters are delivered to the apical brush border to facilitate fluid and electrolyte uptake. Maintenance of these apical transporters requires both targeted delivery and regulated membrane recycling. Examination of altered apical trafficking in patients with Microvillus Inclusion disease caused by inactivating mutations in MYO5B has led to insights into the regulation of apical trafficking by elements of the apical recycling system. Modeling of MYO5B loss in cell culture and animal models has led to recognition of Rab11a and Rab8a as critical regulators of apical brush border function. All of these studies show the importance of apical membrane trafficking dynamics in maintenance of polarized epithelial cell function.
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Affiliation(s)
- Amy Christine Engevik
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee 37232.,Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232
| | - James R Goldenring
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee 37232.,Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232.,Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee 37232.,Nashville VA Medical Center, Nashville, Tennessee 37232
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32
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Terciolo C, Dobric A, Ouaissi M, Siret C, Breuzard G, Silvy F, Marchiori B, Germain S, Bonier R, Hama A, Owens R, Lombardo D, Rigot V, André F. Saccharomyces boulardii CNCM I-745 Restores intestinal Barrier Integrity by Regulation of E-cadherin Recycling. J Crohns Colitis 2017; 11:999-1010. [PMID: 28333335 DOI: 10.1093/ecco-jcc/jjx030] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 02/21/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Alteration in intestinal permeability is the main factor underlying the pathogenesis of many diseases affecting the gut, such as inflammatory bowel disease [IBD]. Characterization of molecules targeting the restoration of intestinal barrier integrity is therefore vital for the development of alternative therapies. The yeast Saccharomyces boulardii CNCM I-745 [Sb], used to prevent and treat antibiotic-associated infectious and functional diarrhea, may have a beneficial effect in the treatment of IBD. METHODS We analyzed the impact of Sb supernatant on tissue integrity and components of adherens junctions using cultured explants of colon from both IBD and healthy patients. To evaluate the pathways by which Sb regulates the expression of E-cadherin at the cell surface, we developed in vitro assays using human colonic cell lines, including cell aggregation, a calcium switch assay, real-time measurement of transepithelial electrical resistance [TEER] and pulse-chase experiments. RESULTS We showed that Sb supernatant treatment of colonic explants protects the epithelial morphology and maintains E-cadherin expression at the cell surface. In vitro experiments revealed that Sb supernatant enhances E-cadherin delivery to the cell surface by re-routing endocytosed E-cadherin back to the plasma membrane. This process, involving Rab11A-dependent recycling endosome, leads to restoration of enterocyte adherens junctions, in addition to the overall restoration and strengthening of intestinal barrier function. CONCLUSION These findings open new possibilities of discovering novel options for prevention and therapy of diseases that affect intestinal permeability.
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Affiliation(s)
- Chloé Terciolo
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Aurélie Dobric
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Mehdi Ouaissi
- Aix-Marseille Université, Inserm, AP-HM, UMR 911, CRO2, Marseille, France
| | - Carole Siret
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Gilles Breuzard
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Françoise Silvy
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | | | | | - Renaté Bonier
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Adel Hama
- Ecole des Mines de Saint Etienne, BEL, Gardanne, France
| | - Roisin Owens
- Ecole des Mines de Saint Etienne, BEL, Gardanne, France
| | | | - Véronique Rigot
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
| | - Frédéric André
- Aix-Marseille Université, Inserm, UMR 911, CRO2, Marseille, France
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33
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Ramadass M, Catz SD. Molecular mechanisms regulating secretory organelles and endosomes in neutrophils and their implications for inflammation. Immunol Rev 2017; 273:249-65. [PMID: 27558339 DOI: 10.1111/imr.12452] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Neutrophils constitute the first line of cellular defense against invading microorganisms and modulate the subsequent innate and adaptive immune responses. In order to execute a rapid and precise response to infections, neutrophils rely on preformed effector molecules stored in a variety of intracellular granules. Neutrophil granules contain microbicidal factors, the membrane-bound components of the respiratory burst oxidase, membrane-bound adhesion molecules, and receptors that facilitate the execution of all neutrophil functions including adhesion, transmigration, phagocytosis, degranulation, and neutrophil extracellular trap formation. The rapid mobilization of intracellular organelles is regulated by vesicular trafficking mechanisms controlled by effector molecules that include small GTPases and their interacting proteins. In this review, we focus on recent discoveries of mechanistic processes that are at center stage of the regulation of neutrophil function, highlighting the discrete and selective pathways controlled by trafficking modulators. In particular, we describe novel pathways controlled by the Rab27a effectors JFC1 and Munc13-4 in the regulation of degranulation, reactive oxygen species and neutrophil extracellular trap production, and endolysosomal signaling. Finally, we discuss the importance of understanding these molecular mechanisms in order to design novel approaches to modulate neutrophil-mediated inflammatory processes in a targeted fashion.
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Affiliation(s)
- Mahalakshmi Ramadass
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | - Sergio D Catz
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA, USA
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34
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Klunder LJ, Faber KN, Dijkstra G, van IJzendoorn SCD. Mechanisms of Cell Polarity-Controlled Epithelial Homeostasis and Immunity in the Intestine. Cold Spring Harb Perspect Biol 2017; 9:cshperspect.a027888. [PMID: 28213466 DOI: 10.1101/cshperspect.a027888] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Intestinal epithelial cell polarity is instrumental to maintain epithelial homeostasis and balance communications between the gut lumen and bodily tissue, thereby controlling the defense against gastrointestinal pathogens and maintenance of immune tolerance to commensal bacteria. In this review, we highlight recent advances with regard to the molecular mechanisms of cell polarity-controlled epithelial homeostasis and immunity in the human intestine.
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Affiliation(s)
- Leon J Klunder
- Department of Cell Biology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, the Netherlands
| | - Klaas Nico Faber
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, the Netherlands
| | - Gerard Dijkstra
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, the Netherlands
| | - Sven C D van IJzendoorn
- Department of Cell Biology, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, the Netherlands
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35
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Balasubramanian I, Gao N. From sensing to shaping microbiota: insights into the role of NOD2 in intestinal homeostasis and progression of Crohn's disease. Am J Physiol Gastrointest Liver Physiol 2017; 313:G7-G13. [PMID: 28450278 PMCID: PMC5538831 DOI: 10.1152/ajpgi.00330.2016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 04/06/2017] [Accepted: 04/20/2017] [Indexed: 01/31/2023]
Abstract
NOD2 was the first susceptibility gene identified for Crohn's disease (CD), one of the major forms of inflammatory bowel disease (IBD). The field of NOD2 research has opened up many questions critical to understanding the complexities of microbiota-host interactions. In addition to sensing its specific bacterial components as a cytosolic pattern recognition receptor, NOD2 also appears to shape the colonization of intestinal microbiota. Activated NOD2 triggers downstream signaling cascades exampled by the NF-κB pathway to induce antimicrobial activities, however, defective or loss of NOD2 functions incur a similarly activated inflammatory response. Additional studies have identified the involvement of NOD2 in protection against non-microbiota-related intestinal damages as well as extraintestinal infections. We survey recent molecular and genetic studies of NOD2-mediated bacterial sensing and immunological modulation, and integrate evidence to suggest a highly reciprocal but still poorly understood cross talk between enteric microbiota and host cells.
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Affiliation(s)
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, New Jersey
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36
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Feng Q, Bonder EM, Engevik AC, Zhang L, Tyska MJ, Goldenring JR, Gao N. Disruption of Rab8a and Rab11a causes formation of basolateral microvilli in neonatal enteropathy. J Cell Sci 2017; 130:2491-2505. [PMID: 28596241 DOI: 10.1242/jcs.201897] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 06/01/2017] [Indexed: 12/15/2022] Open
Abstract
Misplaced formation of microvilli to basolateral domains and intracellular inclusions in enterocytes are pathognomonic features in congenital enteropathy associated with mutation of the apical plasma membrane receptor syntaxin 3 (STX3). Although the demonstrated binding of Myo5b to the Rab8a and Rab11a small GTPases in vitro implicates cytoskeleton-dependent membrane sorting, the mechanisms underlying the microvillar location defect remain unclear. By selective or combinatory disruption of Rab8a and Rab11a membrane traffic in vivo, we demonstrate that transport of distinct cargo to the apical brush border rely on either individual or both Rab regulators, whereas certain basolateral cargos are redundantly transported by both factors. Enterocyte-specific Rab8a and Rab11a double-knockout mouse neonates showed immediate postnatal lethality and more severe enteropathy than single knockouts, with extensive formation of microvilli along basolateral surfaces. Notably, following an inducible Rab11a deletion from neonatal enterocytes, basolateral microvilli were induced within 3 days. These data identify a potentially important and distinct mechanism for a characteristic microvillus defect exhibited by enterocytes of patients with neonatal enteropathy.
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Affiliation(s)
- Qiang Feng
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Edward M Bonder
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Amy C Engevik
- Department of Surgery, and Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Lanjing Zhang
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA.,Department of Pathology, University Medical Center of Princeton, Plainsboro, NJ 08536, USA.,Rutgers Cancer Institute of New Jersey, Rutgers University, Piscataway, NJ 08903, USA
| | - Matthew J Tyska
- Department of Cell & Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - James R Goldenring
- Department of Surgery, and Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.,Department of Cell & Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.,Nashville VA Medical Center, Vanderbilt University, Nashville, TN 37232, USA
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA .,Rutgers Cancer Institute of New Jersey, Rutgers University, Piscataway, NJ 08903, USA
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37
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Sun J, Yu S, Zhang X, Capac C, Aligbe O, Daudelin T, Bonder EM, Gao N. A Wntless-SEC12 complex on the ER membrane regulates early Wnt secretory vesicle assembly and mature ligand export. J Cell Sci 2017; 130:2159-2171. [PMID: 28515233 DOI: 10.1242/jcs.200634] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 05/11/2017] [Indexed: 01/02/2023] Open
Abstract
Wntless (Wls) transports Wnt molecules for secretion; however, the cellular mechanism underlying the initial assembly of Wnt secretory vesicles is still not fully defined. Here, we performed proteomic and mutagenic analyses of mammalian Wls, and report a mechanism for formation of early Wnt secretory vesicles on ER membrane. Wls forms a complex with SEC12 (also known as PREB), an ER membrane-localized guanine nucleotide-exchange factor (GEF) activator of the SAR1 (the SAR1A isoform) small GTPase. Compared to palmitoylation-deficient Wnt molecules, binding of mature Wnt to Wls increases Wls-SEC12 interaction and promotes association of Wls with SAR1, the key activator of the COPII machinery. Incorporation of Wls into this exporting ER compartment is affected by Wnt ligand binding and SEC12 binding to Wls, as well as the structural integrity and, potentially, the folding of the cytosolic tail of Wls. In contrast, Wls-SEC12 binding is stable, with the interacting interface biochemically mapped to cytosolic segments of individual proteins. Mutant Wls that fails to communicate with the COPII machinery cannot effectively support Wnt secretion. These data suggest that formation of early Wnt secretory vesicles is carefully regulated to ensure proper export of functional ligands.
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Affiliation(s)
- Jiaxin Sun
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Shiyan Yu
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Xiao Zhang
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Catherine Capac
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | | | - Timothy Daudelin
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Edward M Bonder
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, NJ, USA .,Rutgers Cancer Institute of New Jersey, Rutgers University, Piscataway, NJ, USA
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38
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Lechuga S, Ivanov AI. Disruption of the epithelial barrier during intestinal inflammation: Quest for new molecules and mechanisms. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:1183-1194. [PMID: 28322932 DOI: 10.1016/j.bbamcr.2017.03.007] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Revised: 03/13/2017] [Accepted: 03/15/2017] [Indexed: 02/06/2023]
Abstract
The intestinal epithelium forms a key protective barrier that separates internal organs from the harmful environment of the gut lumen. Increased permeability of the gut barrier is a common manifestation of different inflammatory disorders contributing to the severity of disease. Barrier permeability is controlled by epithelial adherens junctions and tight junctions. Junctional assembly and integrity depend on fundamental homeostatic processes such as cell differentiation, rearrangements of the cytoskeleton, and vesicle trafficking. Alterations of intestinal epithelial homeostasis during mucosal inflammation may impair structure and remodeling of apical junctions, resulting in increased permeability of the gut barrier. In this review, we summarize recent advances in our understanding of how altered epithelial homeostasis affects the structure and function of adherens junctions and tight junctions in the inflamed gut. Specifically, we focus on the transcription reprogramming of the cell, alterations in the actin cytoskeleton, and junctional endocytosis and exocytosis. We pay special attention to knockout mouse model studies and discuss the relevance of these mechanisms to human gastrointestinal disorders.
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Affiliation(s)
- Susana Lechuga
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Andrei I Ivanov
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA 23298, USA; Virginia Institute of Molecular Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA.
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39
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Rab11 and phosphoinositides: A synergy of signal transducers in the control of vesicular trafficking. Adv Biol Regul 2016; 63:132-139. [PMID: 27658318 DOI: 10.1016/j.jbior.2016.09.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 09/13/2016] [Indexed: 12/11/2022]
Abstract
Rab11 and phosphoinositides are signal transducers able to direct the delivery of membrane components to the cell surface. Rab11 is a small GTPase that, by cycling from an active to an inactive state, controls key events of vesicular transport, while phosphoinositides are major determinants of membrane identity, modulating compartmentalized small GTPase function. By sharing common effectors, these two signal transducers synergistically direct vesicular traffic to specific intracellular membranes. This review focuses on the latest advances regarding the mechanisms that ensure the compartmentalized regulation of Rab11 function through its interaction with phosphoinositides.
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40
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Akbar MA, Mandraju R, Tracy C, Hu W, Pasare C, Krämer H. ARC Syndrome-Linked Vps33B Protein Is Required for Inflammatory Endosomal Maturation and Signal Termination. Immunity 2016; 45:267-79. [PMID: 27496733 DOI: 10.1016/j.immuni.2016.07.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 03/03/2016] [Accepted: 05/17/2016] [Indexed: 12/13/2022]
Abstract
Toll-like receptors (TLRs) and other pattern-recognition receptors (PRRs) sense microbial ligands and initiate signaling to induce inflammatory responses. Although the quality of inflammatory responses is influenced by internalization of TLRs, the role of endosomal maturation in clearing receptors and terminating inflammatory responses is not well understood. Here, we report that Drosophila and mammalian Vps33B proteins play critical roles in the maturation of phagosomes and endosomes following microbial recognition. Vps33B was necessary for clearance of endosomes containing internalized PRRs, failure of which resulted in enhanced signaling and expression of inflammatory mediators. Lack of Vps33B had no effect on trafficking of endosomes containing non-microbial cargo. These findings indicate that Vps33B function is critical for determining the fate of signaling endosomes formed following PRR activation. Exaggerated inflammatory responses dictated by persistence of receptors in aberrant endosomal compartments could therefore contribute to symptoms of ARC syndrome, a disease linked to loss of Vps33B.
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Affiliation(s)
- Mohammed Ali Akbar
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Rajakumar Mandraju
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Charles Tracy
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Wei Hu
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Chandrashekhar Pasare
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
| | - Helmut Krämer
- Department of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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41
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Pierzchalska M, Grabacka M. The potential role of some phytochemicals in recognition of mitochondrial damage-associated molecular patterns. Mitochondrion 2016; 30:24-34. [PMID: 27288721 DOI: 10.1016/j.mito.2016.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 06/05/2016] [Accepted: 06/07/2016] [Indexed: 02/07/2023]
Abstract
Mitochondria are the source of damage-associated molecular patterns (DAMPs). DAMPs modulate responses to stress and trauma in animals, influencing the onset of many diseases. Dietary phytochemicals, which target various cellular molecules, are potential modulators of immunological status. In this review the existence of the possible impact of some plant-derived compounds with proven anti-cancer and anti-inflammatory properties (isothiocyanates and curcumin) on DAMPs recognition is highlighted. Special consideration is given to the mtDNA recognizing Toll-like receptor 9 and formyl peptide receptors. In the context of the phytochemicals action, the role of these receptors in epithelial homeostasis is also discussed.
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Affiliation(s)
- Malgorzata Pierzchalska
- Department of Food Biotechnology, Faculty of Food Technology, The University of Agriculture in Kraków, Poland.
| | - Maja Grabacka
- Department of Food Biotechnology, Faculty of Food Technology, The University of Agriculture in Kraków, Poland
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42
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Reynier M, Allart S, Gaspard E, Moga A, Goudounèche D, Serre G, Simon M, Leprince C. Rab11a Is Essential for Lamellar Body Biogenesis in the Human Epidermis. J Invest Dermatol 2016; 136:1199-1209. [DOI: 10.1016/j.jid.2016.02.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/05/2015] [Accepted: 12/08/2015] [Indexed: 12/11/2022]
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43
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Zhang X, Gao N. RAB and RHO GTPases regulate intestinal crypt cell homeostasis and enterocyte function. Small GTPases 2016; 7:59-64. [PMID: 27142493 DOI: 10.1080/21541248.2016.1159274] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Recent human and mouse genetic studies have highlighted important contributions of several small GTPases, in particular Rab8a, (1) Cdc42, (2-4) and Rab11a, (5-8) to the proper morphogenesis and function of the mature intestinal epithelia. Additional insights about the involvement of these factors in maintaining intestinal stem cell homeostasis have also been obtained. (9,10) These studies suggest a conserved vesicular and membrane trafficking program utilized by the gastrointestinal tissue to support the rapid epithelial cell turnover and the highly sophisticated physiology of mature epithelial cells.
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Affiliation(s)
- Xiao Zhang
- a Department of Biological Sciences , Rutgers University , Newark , NJ , USA
| | - Nan Gao
- a Department of Biological Sciences , Rutgers University , Newark , NJ , USA
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44
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Kobayashi S, Suzuki T, Kawaguchi A, Phongphaew W, Yoshii K, Iwano T, Harada A, Kariwa H, Orba Y, Sawa H. Rab8b Regulates Transport of West Nile Virus Particles from Recycling Endosomes. J Biol Chem 2016; 291:6559-68. [PMID: 26817838 DOI: 10.1074/jbc.m115.712760] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Indexed: 01/09/2023] Open
Abstract
West Nile virus (WNV) particles assemble at and bud into the endoplasmic reticulum (ER) and are secreted from infected cells through the secretory pathway. However, the host factor related to these steps is not fully understood. Rab proteins, belonging to the Ras superfamily, play essential roles in regulating many aspects of vesicular trafficking. In this study, we sought to determine which Rab proteins are involved in intracellular trafficking of nascent WNV particles. RNAi analysis revealed that Rab8b plays a role in WNV particle release. We found that Rab8 and WNV antigen were colocalized in WNV-infected human neuroblastoma cells, and that WNV infection enhanced Rab8 expression in the cells. In addition, the amount of WNV particles in the supernatant of Rab8b-deficient cells was significantly decreased compared with that of wild-type cells. We also demonstrated that WNV particles accumulated in the recycling endosomes in WNV-infected cells. In summary, these results suggest that Rab8b is involved in trafficking of WNV particles from recycling endosomes to the plasma membrane.
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Affiliation(s)
- Shintaro Kobayashi
- From the Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, N20, W10, Kita-ku, Sapporo 001-0020, Japan, Laboratory of Public Health, Graduate School of Veterinary Medicine, Hokkaido University, N18, W9, Kita-ku, Sapporo 060-0818, Japan
| | - Tadaki Suzuki
- Department of Pathology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-Ku, Tokyo 162-8640, Japan
| | - Akira Kawaguchi
- From the Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, N20, W10, Kita-ku, Sapporo 001-0020, Japan
| | - Wallaya Phongphaew
- From the Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, N20, W10, Kita-ku, Sapporo 001-0020, Japan
| | - Kentaro Yoshii
- Laboratory of Public Health, Graduate School of Veterinary Medicine, Hokkaido University, N18, W9, Kita-ku, Sapporo 060-0818, Japan
| | - Tomohiko Iwano
- Department of Anatomy and Cell Biology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimo-Kateau, Chuo, Yamanashi 409-3898, Japan
| | - Akihiro Harada
- Department of Cell Biology, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan, and
| | - Hiroaki Kariwa
- Laboratory of Public Health, Graduate School of Veterinary Medicine, Hokkaido University, N18, W9, Kita-ku, Sapporo 060-0818, Japan
| | - Yasuko Orba
- From the Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, N20, W10, Kita-ku, Sapporo 001-0020, Japan
| | - Hirofumi Sawa
- From the Division of Molecular Pathobiology, Research Center for Zoonosis Control, Hokkaido University, N20, W10, Kita-ku, Sapporo 001-0020, Japan, Global Institution for Collaborative Research and Education (GI-CoRE) and Global Virus Network (GVN), Hokkaido University, N20, W10, Kita-ku, Sapporo 001-0020, Japan
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45
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Johnson JL, He J, Ramadass M, Pestonjamasp K, Kiosses WB, Zhang J, Catz SD. Munc13-4 Is a Rab11-binding Protein That Regulates Rab11-positive Vesicle Trafficking and Docking at the Plasma Membrane. J Biol Chem 2015; 291:3423-38. [PMID: 26637356 DOI: 10.1074/jbc.m115.705871] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Indexed: 11/06/2022] Open
Abstract
The small GTPase Rab11 and its effectors control trafficking of recycling endosomes, receptor replenishment and the up-regulation of adhesion and adaptor molecules at the plasma membrane. Despite recent advances in the understanding of Rab11-regulated mechanisms, the final steps mediating docking and fusion of Rab11-positive vesicles at the plasma membrane are not fully understood. Munc13-4 is a docking factor proposed to regulate fusion through interactions with SNAREs. In hematopoietic cells, including neutrophils, Munc13-4 regulates exocytosis in a Rab27a-dependent manner, but its possible regulation of other GTPases has not been explored in detail. Here, we show that Munc13-4 binds to Rab11 and regulates the trafficking of Rab11-containing vesicles. Using a novel Time-resolved Fluorescence Resonance Energy Transfer (TR-FRET) assay, we demonstrate that Munc13-4 binds to Rab11a but not to dominant negative Rab11a. Immunoprecipitation analysis confirmed the specificity of the interaction between Munc13-4 and Rab11, and super-resolution microscopy studies support the interaction of endogenous Munc13-4 with Rab11 at the single molecule level in neutrophils. Vesicular dynamic analysis shows the common spatio-temporal distribution of Munc13-4 and Rab11, while expression of a calcium binding-deficient mutant of Munc13-4 significantly affected Rab11 trafficking. Munc13-4-deficient neutrophils showed normal endocytosis, but the trafficking, up-regulation, and retention of Rab11-positive vesicles at the plasma membrane was significantly impaired. This correlated with deficient NADPH oxidase activation at the plasma membrane in response to Rab11 interference. Our data demonstrate that Munc13-4 is a Rab11-binding partner that regulates the final steps of Rab11-positive vesicle docking at the plasma membrane.
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Affiliation(s)
| | - Jing He
- From the Department of Molecular and Experimental Medicine and
| | | | - Kersi Pestonjamasp
- Cancer Center Microscopy Shared Resource, University of California San Diego, La Jolla, California 92093
| | - William B Kiosses
- Light Microscopy Core Facility, The Scripps Research Institute, La Jolla, California 92037 and
| | - Jinzhong Zhang
- From the Department of Molecular and Experimental Medicine and
| | - Sergio D Catz
- From the Department of Molecular and Experimental Medicine and
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46
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Patel C, Douard V, Yu S, Gao N, Ferraris RP. Transport, metabolism, and endosomal trafficking-dependent regulation of intestinal fructose absorption. FASEB J 2015; 29:4046-58. [PMID: 26071406 PMCID: PMC4550372 DOI: 10.1096/fj.15-272195] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 06/02/2015] [Indexed: 01/03/2023]
Abstract
Dietary fructose that is linked to metabolic abnormalities can up-regulate its own absorption, but the underlying regulatory mechanisms are not known. We hypothesized that glucose transporter (GLUT) protein, member 5 (GLUT5) is the primary fructose transporter and that fructose absorption via GLUT5, metabolism via ketohexokinase (KHK), as well as GLUT5 trafficking to the apical membrane via the Ras-related protein-in-brain 11 (Rab11)a-dependent endosomes are each required for regulation. Introducing fructose but not lysine and glucose solutions into the lumen increased by 2- to 10-fold the heterogeneous nuclear RNA, mRNA, protein, and activity levels of GLUT5 in adult wild-type mice consuming chow. Levels of GLUT5 were >100-fold that of candidate apical fructose transporters GLUTs 7, 8, and 12 whose expression, and that of GLUT 2 and the sodium-dependent glucose transporter protein 1 (SGLT1), was not regulated by luminal fructose. GLUT5-knockout (KO) mice exhibited no facilitative fructose transport and no compensatory increases in activity and expression of SGLT1 and other GLUTs. Fructose could not up-regulate GLUT5 in GLUT5-KO, KHK-KO, and intestinal epithelial cell-specific Rab11a-KO mice. The fructose-specific metabolite glyceraldehyde did not increase GLUT5 expression. GLUT5 is the primary transporter responsible for facilitative absorption of fructose, and its regulation specifically requires fructose uptake and metabolism and normal GLUT5 trafficking to the apical membrane.
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Affiliation(s)
- Chirag Patel
- *Department of Pharmacology and Physiology, New Jersey Medical School, and Department of Biological Sciences, School of Arts and Sciences, Rutgers University, Newark, New Jersey, USA
| | - Veronique Douard
- *Department of Pharmacology and Physiology, New Jersey Medical School, and Department of Biological Sciences, School of Arts and Sciences, Rutgers University, Newark, New Jersey, USA
| | - Shiyan Yu
- *Department of Pharmacology and Physiology, New Jersey Medical School, and Department of Biological Sciences, School of Arts and Sciences, Rutgers University, Newark, New Jersey, USA
| | - Nan Gao
- *Department of Pharmacology and Physiology, New Jersey Medical School, and Department of Biological Sciences, School of Arts and Sciences, Rutgers University, Newark, New Jersey, USA
| | - Ronaldo P Ferraris
- *Department of Pharmacology and Physiology, New Jersey Medical School, and Department of Biological Sciences, School of Arts and Sciences, Rutgers University, Newark, New Jersey, USA
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Mignon-Grasteau S, Narcy A, Rideau N, Chantry-Darmon C, Boscher MY, Sellier N, Chabault M, Konsak-Ilievski B, Le Bihan-Duval E, Gabriel I. Impact of Selection for Digestive Efficiency on Microbiota Composition in the Chicken. PLoS One 2015; 10:e0135488. [PMID: 26267269 PMCID: PMC4534097 DOI: 10.1371/journal.pone.0135488] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 07/22/2015] [Indexed: 01/23/2023] Open
Abstract
Objectives Feed efficiency and its digestive component, digestive efficiency, are key factors in the environmental impact and economic output of poultry production. The interaction between the host and intestinal microbiota has a crucial role in the determination of the ability of the bird to digest its food and to the birds’ feed efficiency. We therefore investigated the phenotypic and genetic relationships between birds’ efficiency and the composition of the cecal microbiota in a F2 cross between broiler lines divergently selected for their high or low digestive efficiency. Methods Analyses were performed on 144 birds with extreme feed efficiency values at 3 weeks, with feed conversion values of 1.41±0.05 and 2.02±0.04 in the efficient and non-efficient groups, respectively. The total numbers of Lactobacillus, L. salivarius, L. crispatus, C. coccoides, C. leptum and E. coli per gram of cecal content were measured. Results The two groups mainly differed in larger counts of Lactobacillus, L. salivarius and E. coli in less efficient birds. The equilibrium between bacterial groups was also affected, efficient birds showing higher C. leptum, C. coccoides and L. salivarius to E. coli ratios. The heritability of the composition of microbiota was also estimated and L. crispatus, C. leptum, and C. coccoides to E. coli ratios were moderately but significantly heritable (0.16 to 0.24). The coefficient of fecal digestive use of dry matter was genetically and positively correlated with L. crispatus, C. leptum, C. coccoides (0.50 to 0.76) and negatively with E. coli (-0.66). Lipid digestibility was negatively correlated with E. coli (-0.64), and AMEn positively correlated with C. coccoides and with the C. coccoides to Lactobacillus ratio (0.48 to 0.64). We also detected 14 Quantitative Trait Loci (QTL) for microbiota on the host genome, mostly on C. leptum and Lactobacillus. The QTL for C. leptum on GGA6 was close to genome-wide significance. This region mainly includes genes involved in anti-inflammatory responses and in the motility of the gastrointestinal tract.
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Affiliation(s)
| | - Agnès Narcy
- UR83 Recherches Avicoles, INRA, Nouzilly, France
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Patel C, Douard V, Yu S, Tharabenjasin P, Gao N, Ferraris RP. Fructose-induced increases in expression of intestinal fructolytic and gluconeogenic genes are regulated by GLUT5 and KHK. Am J Physiol Regul Integr Comp Physiol 2015; 309:R499-509. [PMID: 26084694 DOI: 10.1152/ajpregu.00128.2015] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 06/16/2015] [Indexed: 01/09/2023]
Abstract
Marked increases in fructose consumption have been tightly linked to metabolic diseases. One-third of ingested fructose is metabolized in the small intestine, but the underlying mechanisms regulating expression of fructose-metabolizing enzymes are not known. We used genetic mouse models to test the hypothesis that fructose absorption via glucose transporter protein, member 5 (GLUT5), metabolism via ketohexokinase (KHK), as well as GLUT5 trafficking to the apical membrane via the Ras-related protein in brain 11a (Rab11a)-dependent endosomes are required for the regulation of intestinal fructolytic and gluconeogenic enzymes. Fructose feeding increased the intestinal mRNA and protein expression of these enzymes in the small intestine of adult wild-type (WT) mice compared with those gavage fed with lysine or glucose. Fructose did not increase expression of these enzymes in the GLUT5 knockout (KO) mice. Blocking intracellular fructose metabolism by KHK ablation also prevented fructose-induced upregulation. Glycolytic hexokinase I expression was similar between WT and GLUT5- or KHK-KO mice and did not vary with feeding solution. Gavage feeding with the fructose-specific metabolite glyceraldehyde did not increase enzyme expression, suggesting that signaling occurs before the hydrolysis of fructose to three-carbon compounds. Impeding GLUT5 trafficking to the apical membrane using intestinal epithelial cell-specific Rab11a-KO mice impaired fructose-induced upregulation. KHK expression was uniformly distributed along the villus but was localized mainly in the basal region of the cytosol of enterocytes. The feedforward upregulation of fructolytic and gluconeogenic enzymes specifically requires GLUT5 and KHK and may proactively enhance the intestine's ability to process anticipated increases in dietary fructose concentrations.
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Affiliation(s)
- Chirag Patel
- Department of Pharmacology and Physiology, New Jersey Medical School, Rutgers University, Newark, New Jersey; and
| | - Veronique Douard
- Department of Pharmacology and Physiology, New Jersey Medical School, Rutgers University, Newark, New Jersey; and
| | - Shiyan Yu
- Department of Biological Sciences, School of Arts and Sciences, Rutgers University, Newark, New Jersey
| | - Phuntila Tharabenjasin
- Department of Pharmacology and Physiology, New Jersey Medical School, Rutgers University, Newark, New Jersey; and
| | - Nan Gao
- Department of Biological Sciences, School of Arts and Sciences, Rutgers University, Newark, New Jersey
| | - Ronaldo P Ferraris
- Department of Pharmacology and Physiology, New Jersey Medical School, Rutgers University, Newark, New Jersey; and
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49
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Goldenring JR. Recycling endosomes. Curr Opin Cell Biol 2015; 35:117-22. [PMID: 26022676 DOI: 10.1016/j.ceb.2015.04.018] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 04/29/2015] [Accepted: 04/30/2015] [Indexed: 12/13/2022]
Abstract
The endosomal membrane recycling system represents a dynamic conduit for sorting and re-exporting internalized membrane constituents. The recycling system is composed of multiple tubulovesicular recycling pathways that likely confer distinct trafficking pathways for individual cargoes. In addition, elements of the recycling system are responsible for assembly and maintenance of apical membrane specializations including primary cilia and apical microvilli. The existence of multiple intersecting and diverging recycling tracks likely accounts for specificity in plasma membrane recycling trafficking.
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Affiliation(s)
- James R Goldenring
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA; Department of Cell & Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA; The Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, TN, USA; The Nashville VA Medical Center, Nashville, TN, USA.
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50
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Das S, Yu S, Sakamori R, Vedula P, Feng Q, Flores J, Hoffman A, Fu J, Stypulkowski E, Rodriguez A, Dobrowolski R, Harada A, Hsu W, Bonder EM, Verzi MP, Gao N. Rab8a vesicles regulate Wnt ligand delivery and Paneth cell maturation at the intestinal stem cell niche. Development 2015; 142:2147-62. [PMID: 26015543 PMCID: PMC4483769 DOI: 10.1242/dev.121046] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 04/16/2015] [Indexed: 12/11/2022]
Abstract
Communication between stem and niche supporting cells maintains the homeostasis of adult tissues. Wnt signaling is a crucial regulator of the stem cell niche, but the mechanism that governs Wnt ligand delivery in this compartment has not been fully investigated. We identified that Wnt secretion is partly dependent on Rab8a-mediated anterograde transport of Gpr177 (wntless), a Wnt-specific transmembrane transporter. Gpr177 binds to Rab8a, depletion of which compromises Gpr177 traffic, thereby weakening the secretion of multiple Wnts. Analyses of generic Wnt/β-catenin targets in Rab8a knockout mouse intestinal crypts indicate reduced signaling activities; maturation of Paneth cells – a Wnt-dependent cell type – is severely affected. Rab8a knockout crypts show an expansion of Lgr5+ and Hopx+ cells in vivo. However, in vitro, the knockout enteroids exhibit significantly weakened growth that can be partly restored by exogenous Wnts or Gsk3β inhibitors. Immunogold labeling and surface protein isolation identified decreased plasma membrane localization of Gpr177 in Rab8a knockout Paneth cells and fibroblasts. Upon stimulation by exogenous Wnts, Rab8a-deficient cells show ligand-induced Lrp6 phosphorylation and transcriptional reporter activation. Rab8a thus controls Wnt delivery in producing cells and is crucial for Paneth cell maturation. Our data highlight the profound tissue plasticity that occurs in response to stress induced by depletion of a stem cell niche signal. Summary: In maturing mouse Paneth cells, Wnt secretion is partly dependent on a Rab8a-mediated anterograde transport of Gpr177. Rab8a is required for Paneth cell maturation.
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Affiliation(s)
- Soumyashree Das
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Shiyan Yu
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Ryotaro Sakamori
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Pavan Vedula
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Qiang Feng
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Juan Flores
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Andrew Hoffman
- Department of Genetics, Human Genetics Institute of New Jersey, Rutgers University, Piscataway, NJ 08854, USA
| | - Jiang Fu
- Department of Biomedical Genetics, Center for Oral Biology, James P. Wilmot Cancer Center, Stem Cell and Regenerative Medicine Institute, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Ewa Stypulkowski
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Alexis Rodriguez
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Radek Dobrowolski
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Akihiro Harada
- Department of Cell Biology, Graduate School of Medicine, Osaka University 2-2, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Wei Hsu
- Department of Biomedical Genetics, Center for Oral Biology, James P. Wilmot Cancer Center, Stem Cell and Regenerative Medicine Institute, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Edward M Bonder
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Michael P Verzi
- Department of Genetics, Human Genetics Institute of New Jersey, Rutgers University, Piscataway, NJ 08854, USA Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA Rutgers Cancer Institute of New Jersey, New Brunswick, NJ 08901, USA
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