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Yan X, Hu Z, Li X, Liang J, Zheng J, Gong J, Hu K, Sui X, Li R. Systemic analysis of the prognostic significance and interaction network of miR-26b-3p in cholangiocarcinoma. Appl Biochem Biotechnol 2024; 196:4166-4187. [PMID: 37914963 DOI: 10.1007/s12010-023-04753-x] [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] [Accepted: 10/17/2023] [Indexed: 11/03/2023]
Abstract
MicroRNAs (miRNAs) reportedly play significant roles in the progression of various cancers and hold huge potential as both diagnostic tools and therapeutic targets. Given the ongoing uncertainty surrounding the precise functions of several miRNAs in cholangiocarcinoma (CCA), this research undertakes a comprehensive analysis of CCA data sourced from Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) databases. The present study identified a novel miRNA, specifically miR-26b-3p, which exhibited prognostic value for individuals with CCA. Notably, miR-26b-3p was upregulated within CCA samples, with an inverse correlation established with patient prognosis (Hazard Ratio = 8.19, p = 0.018). Through a combination of functional enrichment analysis, analysis of the LncRNA-miR-26b-3p-mRNA interaction network, and validation by qRT PCR and western blotting, this study uncovered the potential of miR-26b-3p in potentiating the malignant progression of CCA via regulation of essential genes (including PSMD14, XAB2, SLC4A4) implicated in processes such as endoplasmic reticulum (ER) stress and responses to misfolded proteins. Our findings introduce novel and valuable insights that position miR-26b-3p-associated genes as promising biomarkers for the diagnosis and treatment of CCA.
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Affiliation(s)
- Xijing Yan
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
- Department of Breast and Thyroid Surgery, Lingnan Hospital, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Zhongying Hu
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Xuejiao Li
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Jinliang Liang
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Jun Zheng
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Jiao Gong
- Department of Laboratory Medicine, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Kunpeng Hu
- Department of Breast and Thyroid Surgery, Lingnan Hospital, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China.
| | - Xin Sui
- Surgical ICU, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China.
| | - Rong Li
- Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China.
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Liu H, Dang R, Zhang W, Hong J, Li X. SNARE proteins: Core engines of membrane fusion in cancer. Biochim Biophys Acta Rev Cancer 2024:189148. [PMID: 38960006 DOI: 10.1016/j.bbcan.2024.189148] [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: 02/29/2024] [Revised: 06/23/2024] [Accepted: 06/27/2024] [Indexed: 07/05/2024]
Abstract
Vesicles are loaded with a variety of cargoes, including membrane proteins, secreted proteins, signaling molecules, and various enzymes, etc. Not surprisingly, vesicle transport is essential for proper cellular life activities including growth, division, movement and cellular communication. Soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs) mediate membrane fusion of vesicles with their target compartments that is fundamental for cargo delivery. Recent studies have shown that multiple SNARE family members are aberrantly expressed in human cancers and actively contribute to malignant proliferation, invasion, metastasis, immune evasion and treatment resistance. Here, the localization and function of SNARE proteins in eukaryotic cells are firstly mapped. Then we summarize the expression and regulation of SNAREs in cancer, and describe their contribution to cancer progression and mechanisms, and finally we propose engineering botulinum toxin as a strategy to target SNAREs for cancer treatment.
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Affiliation(s)
- Hongyi Liu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China; Hunan International Scientific and Technological Cooperation Base of Brain Tumor Research, Xiangya Hospital, Central South University, Changsha, China
| | - Ruiyue Dang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Wei Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China; Hunan International Scientific and Technological Cooperation Base of Brain Tumor Research, Xiangya Hospital, Central South University, Changsha, China
| | - Jidong Hong
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, China.
| | - Xuejun Li
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China; Hunan International Scientific and Technological Cooperation Base of Brain Tumor Research, Xiangya Hospital, Central South University, Changsha, China.
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3
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McWilliam HEG, Villadangos JA. MR1 antigen presentation to MAIT cells and other MR1-restricted T cells. Nat Rev Immunol 2024; 24:178-192. [PMID: 37773272 PMCID: PMC11108705 DOI: 10.1038/s41577-023-00934-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2023] [Indexed: 10/01/2023]
Abstract
MHC antigen presentation plays a fundamental role in adaptive and semi-invariant T cell immunity. Distinct MHC molecules bind antigens that differ in chemical structure, origin and location and present them to specialized T cells. MHC class I-related protein 1 (MR1) presents a range of small molecule antigens to MR1-restricted T (MR1T) lymphocytes. The best studied MR1 ligands are derived from microbial metabolism and are recognized by a major class of MR1T cells known as mucosal-associated invariant T (MAIT) cells. Here, we describe the MR1 antigen presentation pathway: the known types of antigens presented by MR1, the location where MR1-antigen complexes form, the route followed by the complexes to the cell surface, the mechanisms involved in termination of MR1 antigen presentation and the accessory cellular proteins that comprise the MR1 antigen presentation machinery. The current road map of the MR1 antigen presentation pathway reveals potential strategies for therapeutic manipulation of MR1T cell function and provides a foundation for further studies that will lead to a deeper understanding of MR1-mediated immunity.
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Affiliation(s)
- Hamish E G McWilliam
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia.
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, Australia.
| | - Jose A Villadangos
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia.
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, Australia.
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4
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Zhou L, Wang Z, Chen X, Li X, Ge C, Min X, Zhao F, Chen T, Li J. Syntaxin-6 promotes the progression of hepatocellular carcinoma and alters its sensitivity to chemotherapies by activating the USF2/LC3B axis. Int J Biol Sci 2023; 19:3892-3907. [PMID: 37564208 PMCID: PMC10411479 DOI: 10.7150/ijbs.86636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 07/18/2023] [Indexed: 08/12/2023] Open
Abstract
Syntaxin-6 (STX6), a protein of the syntaxin family, is located in the trans-Golgi network and is involved in a variety of intracellular membrane transport events. STX6 is overexpressed in different human malignant tumors. However, little is known about its exact function and molecular mechanism in hepatocellular carcinoma (HCC). In this study, we found that the expression of STX6 was significantly increased in HCC tissues and was associated with poor survival. Gain- and loss-of-function experiments showed that STX6 promotes cell proliferation and metastasis of HCC cells both in vitro and in vivo. Mechanistically, STX6 was negatively regulated by the upstream stimulatory factor 2 (USF2). In addition, STX6 facilitates the association of autophagosomes with lysosomes. Importantly, we demonstrated that STX6 overexpression, despite enhanced resistance to lenvatinib, sensitizes HCC cells to the autophagy activator rapamycin. This study revealed that, under the control of USF2, STX6 accelerates the degradation of microtubule-associated protein 1 light chain 3 beta (LC3) by promoting autophagic flux, ultimately promoting HCC progression. Collectively, we suggest that the USF2-STX6-LC3B axis is a potential therapeutic target in liver cancer.
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Affiliation(s)
- Lianer Zhou
- State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
| | - Zhenyu Wang
- Department of Oncology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200080, China
| | - Xiaoxia Chen
- School of Life Science and Technology, Shanghai Tech University, Shanghai 201210, China
| | - Xianxian Li
- State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
| | - Chao Ge
- State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
| | - Xuejie Min
- State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
| | - Fangyu Zhao
- State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
| | - Taoyang Chen
- Qi Dong Liver Cancer Institute, Qi Dong 226200, China
| | - Jinjun Li
- State Key Laboratory of Systems Medicine for Cancer, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
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Ivanova D, Cousin MA. Synaptic Vesicle Recycling and the Endolysosomal System: A Reappraisal of Form and Function. Front Synaptic Neurosci 2022; 14:826098. [PMID: 35280702 PMCID: PMC8916035 DOI: 10.3389/fnsyn.2022.826098] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/03/2022] [Indexed: 12/15/2022] Open
Abstract
The endolysosomal system is present in all cell types. Within these cells, it performs a series of essential roles, such as trafficking and sorting of membrane cargo, intracellular signaling, control of metabolism and degradation. A specific compartment within central neurons, called the presynapse, mediates inter-neuronal communication via the fusion of neurotransmitter-containing synaptic vesicles (SVs). The localized recycling of SVs and their organization into functional pools is widely assumed to be a discrete mechanism, that only intersects with the endolysosomal system at specific points. However, evidence is emerging that molecules essential for endolysosomal function also have key roles within the SV life cycle, suggesting that they form a continuum rather than being isolated processes. In this review, we summarize the evidence for key endolysosomal molecules in SV recycling and propose an alternative model for membrane trafficking at the presynapse. This includes the hypotheses that endolysosomal intermediates represent specific functional SV pools, that sorting of cargo to SVs is mediated via the endolysosomal system and that manipulation of this process can result in both plastic changes to neurotransmitter release and pathophysiology via neurodegeneration.
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Affiliation(s)
- Daniela Ivanova
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Muir Maxwell Epilepsy Centre, University of Edinburgh, Edinburgh, United Kingdom
- Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh, United Kingdom
- *Correspondence: Daniela Ivanova,
| | - Michael A. Cousin
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
- Muir Maxwell Epilepsy Centre, University of Edinburgh, Edinburgh, United Kingdom
- Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh, United Kingdom
- Michael A. Cousin,
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Goyal S, Tisdale J, Schmidt M, Kanter J, Jaroscak J, Whitney D, Bitter H, Gregory PD, Parsons G, Foos M, Yeri A, Gioia M, Voytek SB, Miller A, Lynch J, Colvin RA, Bonner M. Acute Myeloid Leukemia Case after Gene Therapy for Sickle Cell Disease. N Engl J Med 2022; 386:138-147. [PMID: 34898140 DOI: 10.1056/nejmoa2109167] [Citation(s) in RCA: 83] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Gene therapy with LentiGlobin for sickle cell disease (bb1111, lovotibeglogene autotemcel) consists of autologous transplantation of a patient's hematopoietic stem cells transduced with the BB305 lentiviral vector that encodes the βA-T87Q-globin gene. Acute myeloid leukemia developed in a woman approximately 5.5 years after she had received LentiGlobin for sickle cell disease as part of the initial cohort (Group A) of the HGB-206 study. An analysis of peripheral-blood samples revealed that blast cells contained a BB305 lentiviral vector insertion site. The results of an investigation of causality indicated that the leukemia was unlikely to be related to vector insertion, given the location of the insertion site, the very low transgene expression in blast cells, and the lack of an effect on expression of surrounding genes. Several somatic mutations predisposing to acute myeloid leukemia were present after diagnosis, which suggests that patients with sickle cell disease are at increased risk for hematologic malignant conditions after transplantation, most likely because of a combination of risks associated with underlying sickle cell disease, transplantation procedure, and inadequate disease control after treatment. (Funded by Bluebird Bio.).
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Affiliation(s)
- Sunita Goyal
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - John Tisdale
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Manfred Schmidt
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Julie Kanter
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Jennifer Jaroscak
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Dustin Whitney
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Hans Bitter
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Philip D Gregory
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Geoffrey Parsons
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Marianna Foos
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Ashish Yeri
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Maple Gioia
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Sarah B Voytek
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Alex Miller
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Jessie Lynch
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Richard A Colvin
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
| | - Melissa Bonner
- From Bluebird Bio, Cambridge, MA (S.G., D.W., H.B., P.D.G., G.P., M.F., A.Y., M.G., S.B.V., A.M., J.L., R.A.C., M.B.); the Cellular and Molecular Therapeutics Branch, National Heart, Lung, and Blood Institute-National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD (J.T.); GeneWerk, Heidelberg, Germany (M.S.); the University of Alabama at Birmingham, Birmingham (J.K.); and the Division of Pediatric Hematology-Oncology, Medical University of South Carolina, Charleston (J.J.)
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D’Souza Z, Sumya FT, Khakurel A, Lupashin V. Getting Sugar Coating Right! The Role of the Golgi Trafficking Machinery in Glycosylation. Cells 2021; 10:cells10123275. [PMID: 34943782 PMCID: PMC8699264 DOI: 10.3390/cells10123275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/17/2021] [Accepted: 11/19/2021] [Indexed: 12/18/2022] Open
Abstract
The Golgi is the central organelle of the secretory pathway and it houses the majority of the glycosylation machinery, which includes glycosylation enzymes and sugar transporters. Correct compartmentalization of the glycosylation machinery is achieved by retrograde vesicular trafficking as the secretory cargo moves forward by cisternal maturation. The vesicular trafficking machinery which includes vesicular coats, small GTPases, tethers and SNAREs, play a major role in coordinating the Golgi trafficking thereby achieving Golgi homeostasis. Glycosylation is a template-independent process, so its fidelity heavily relies on appropriate localization of the glycosylation machinery and Golgi homeostasis. Mutations in the glycosylation enzymes, sugar transporters, Golgi ion channels and several vesicle tethering factors cause congenital disorders of glycosylation (CDG) which encompass a group of multisystem disorders with varying severities. Here, we focus on the Golgi vesicle tethering and fusion machinery, namely, multisubunit tethering complexes and SNAREs and their role in Golgi trafficking and glycosylation. This review is a comprehensive summary of all the identified CDG causing mutations of the Golgi trafficking machinery in humans.
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8
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West ZE, Aitcheson SM, Semmler ABT, Murray RZ. The trans-SNARE complex VAMP4/Stx6/Stx7/Vti1b is a key regulator of Golgi to late endosome MT1-MMP transport in macrophages. Traffic 2021; 22:368-376. [PMID: 34476885 DOI: 10.1111/tra.12813] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 08/19/2021] [Accepted: 08/31/2021] [Indexed: 12/25/2022]
Abstract
The activity of the matrix metalloproteinase (MMP) MT1-MMP is strictly regulated by expression and cellular location. In macrophages LPS activation leads to the up-regulation of MT1-MMP and this need to be at the cell surface for them to degrade the dense extracellular matrix (ECM) components to create a path to migrate into injured and infected tissues. Fixed and live imaging shows newly made MT1-MMP is packaged into vesicles that traffic to and fuse with LBPA+ LAMP1+ late endosomes en route to the surface. The R-SNARE VAMP4, found on Golgi-derived vesicles that traffic to late endosomes, forms a trans-SNARE complex with the Q-SNARE complex Stx6/Stx7/Vti1b. The Stx6/Stx7/Vti1b complex has been shown to be up-regulated in lipopolysaccharide (LPS)-activated cells to increase trafficking of key cytokines through the classical pathway and now we show here it is up-regulation also plays a role in the late endosomal pathway of MT1-MMP trafficking. Depletion of any of the SNAREs in this complex reduces surface MT1-MMP and gelatin degradation. Conversely, overexpression of the Stx6/Stx7/Vti1b components increases surface MT1-MMP levels. This suggests that Stx6/Stx7/Vti1b is a key Q-SNARE complex in macrophages during an immune response and in partnership with VAMP4 it regulates transport of newly made MT1-MMP.
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Affiliation(s)
- Zoe Elizabeth West
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Savannah Margaret Aitcheson
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
| | | | - Rachael Zoe Murray
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
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9
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Jorgenson LM, Olson-Wood MG, Rucks EA. Shifting proteomes: limitations in using the BioID proximity labeling system to study SNARE protein trafficking during infection with intracellular pathogens. Pathog Dis 2021; 79:ftab039. [PMID: 34323972 PMCID: PMC8379010 DOI: 10.1093/femspd/ftab039] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 07/25/2021] [Indexed: 11/12/2022] Open
Abstract
We hypothesize that intracellular trafficking pathways are altered in chlamydial infected cells to maximize the ability of Chlamydia to scavenge nutrients while not overtly stressing the host cell. Previous data demonstrated the importance of two eukaryotic SNARE proteins, VAMP4 and syntaxin 10 (Stx10), in chlamydial growth and development. Although, the mechanism for these effects is still unknown. To interrogate whether chlamydial infection altered these proteins' networks, we created BirA*-VAMP4 and BirA*-Stx10 fusion constructs to use the BioID proximity labeling system. While we identified a novel eukaryotic protein-protein interaction between Stx10 and VAPB, we also identified caveats in using the BioID system to study the impact of infection by an obligate intracellular pathogen on SNARE protein networks. The addition of the BirA* altered the localization of VAMP4 and Stx10 during infection with Chlamydia trachomatis serovars L2 and D and Coxiella burnetii Nine Mile Phase II. We also discovered that BirA* traffics to and biotinylates Coxiella-containing vacuoles and, in general, has a propensity for labeling membrane or membrane-associated proteins. While the BioID system identified a novel association for Stx10, it is not a reliable methodology to examine intracellular trafficking pathway dynamics during infection with intracellular pathogens.
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Affiliation(s)
- Lisa M Jorgenson
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Durham Research Center II, 985900 Nebraska Medical Center, Omaha, NE 68198-5900, USA
| | - Macy G Olson-Wood
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Durham Research Center II, 985900 Nebraska Medical Center, Omaha, NE 68198-5900, USA
| | - Elizabeth A Rucks
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Durham Research Center II, 985900 Nebraska Medical Center, Omaha, NE 68198-5900, USA
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10
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Karampini E, Bürgisser PE, Olins J, Mulder AA, Jost CR, Geerts D, Voorberg J, Bierings R. Sec22b determines Weibel-Palade body length by controlling anterograde ER-Golgi transport. Haematologica 2021; 106:1138-1147. [PMID: 32336681 PMCID: PMC8018124 DOI: 10.3324/haematol.2019.242727] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Indexed: 01/07/2023] Open
Abstract
Von Willebrand factor (VWF) is a multimeric hemostatic protein that is synthesized in endothelial cells, where it is stored for secretion in elongated secretory organelles called Weibel-Palade bodies (WPB). The hemostatic activity of VWF is strongly related to the length of these bodies, but how endothelial cells control the dimensions of their WPB is unclear. In this study, using a targeted short hairpin RNA screen, we identified longin-SNARE Sec22b as a novel determinant of WPB size and VWF trafficking. We found that Sec22b depletion resulted in loss of the typically elongated WPB morphology together with disintegration of the Golgi and dilation of rough endoplasmic reticulum cisternae. This was accompanied by reduced proteolytic processing of VWF, accumulation of VWF in the dilated rough endoplasmic reticulum and reduced basal and stimulated VWF secretion. Our data demonstrate that the elongation of WPB, and thus adhesive activity of their cargo VWF, is determined by the rate of anterograde transport between endoplasmic reticulum and Golgi, which depends on Sec22b-containing SNARE complexes.
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Affiliation(s)
- Ellie Karampini
- Sanquin Research and Landsteiner Laboratory, Amsterdam University Medical Center, The Netherlands
| | - Petra E Bürgisser
- Dept. of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Jenny Olins
- Sanquin Research and Landsteiner Laboratory, Amsterdam University Medical Center, The Netherlands
| | - Aat A Mulder
- Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Carolina R Jost
- Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - Dirk Geerts
- Medical Biology, Amsterdam University Medical Center, University of Amsterdam, The Netherlands
| | - Jan Voorberg
- Sanquin Research and Landsteiner Laboratory, Amsterdam University Medical Center, The Netherlands
| | - Ruben Bierings
- Dept. of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
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11
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Hou Z, Fu Q, Huang Y, Zhang P, Chen F, Li M, Xu Z, Yao S, Chen D, Zhang M. WITHDRAWN: Comparative proteomic identification of capacitation and noncapacitation swamp buffalo spermatozoa. Theriogenology 2019; 128:176-183. [DOI: 10.1016/j.theriogenology.2019.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Accepted: 02/01/2019] [Indexed: 01/17/2023]
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12
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Abstract
The Golgi apparatus is a central intracellular membrane-bound organelle with key functions in trafficking, processing, and sorting of newly synthesized membrane and secretory proteins and lipids. To best perform these functions, Golgi membranes form a unique stacked structure. The Golgi structure is dynamic but tightly regulated; it undergoes rapid disassembly and reassembly during the cell cycle of mammalian cells and is disrupted under certain stress and pathological conditions. In the past decade, significant amount of effort has been made to reveal the molecular mechanisms that regulate the Golgi membrane architecture and function. Here we review the major discoveries in the mechanisms of Golgi structure formation, regulation, and alteration in relation to its functions in physiological and pathological conditions to further our understanding of Golgi structure and function in health and diseases.
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Affiliation(s)
- Jie Li
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Erpan Ahat
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Yanzhuang Wang
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA.
- Department of Neurology, University of Michigan School of Medicine, Ann Arbor, MI, USA.
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13
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Hou Z, Fu Q, Huang Y, Zhang P, Chen F, Li M, Xu Z, Yao S, Chen D, Zhang M. Comparative proteomic identification buffalo spermatozoa during in vitro capacitation. Theriogenology 2018; 126:303-309. [PMID: 30599421 DOI: 10.1016/j.theriogenology.2018.12.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 12/13/2018] [Indexed: 10/27/2022]
Abstract
To investigate the proteomic profiling in buffalo spermatozoa before and after capacitation, a liquid chromatography-tandem mass spectrometry (LC-MS/MS) combined with Tandem Mass Tag (TMT) labeling strategy was applied. As a result, 1461 proteins were identified, 93 of them were found to be differentially expressed (>1.5-fold), including 52 up-regulated proteins and 41 down-regulated proteins during sperm capacitation. 88 out of 93 proteins were annotated and classified. Gene ontology (GO) analysis revealed that most of the differently expressed proteins (DEPs) were involved in the Biological Process of transport, cytoskeleton organization, sexual reproduction, and spermatogenesis. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated that DEPs were mainly involved in the pathways of metabolic pathways, PPAR signaling pathway, and oxidative phosphorylation. Western blot (WB) assay confirmed the expressional variation of VAMP4 and APOC3 proteins. Our date provided a foundation for studying the changes in protein expression during sperm capacitation, which contributing to identifying marker proteins that may be associated with sperm capacitation.
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Affiliation(s)
- Zhen Hou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Qiang Fu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Yulin Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Pengfei Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Fumei Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Mingxing Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Zhuangzhuang Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Shun Yao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Dongrong Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China
| | - Ming Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, 530004, Guangxi, PR China.
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14
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Dingjan I, Linders PTA, Verboogen DRJ, Revelo NH, Ter Beest M, van den Bogaart G. Endosomal and Phagosomal SNAREs. Physiol Rev 2018; 98:1465-1492. [PMID: 29790818 DOI: 10.1152/physrev.00037.2017] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) protein family is of vital importance for organelle communication. The complexing of cognate SNARE members present in both the donor and target organellar membranes drives the membrane fusion required for intracellular transport. In the endocytic route, SNARE proteins mediate trafficking between endosomes and phagosomes with other endosomes, lysosomes, the Golgi apparatus, the plasma membrane, and the endoplasmic reticulum. The goal of this review is to provide an overview of the SNAREs involved in endosomal and phagosomal trafficking. Of the 38 SNAREs present in humans, 30 have been identified at endosomes and/or phagosomes. Many of these SNAREs are targeted by viruses and intracellular pathogens, which thereby reroute intracellular transport for gaining access to nutrients, preventing their degradation, and avoiding their detection by the immune system. A fascinating picture is emerging of a complex transport network with multiple SNAREs being involved in consecutive trafficking routes.
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Affiliation(s)
- Ilse Dingjan
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center , Nijmegen , The Netherlands ; and Department of Molecular Immunology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen , Groningen , The Netherlands
| | - Peter T A Linders
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center , Nijmegen , The Netherlands ; and Department of Molecular Immunology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen , Groningen , The Netherlands
| | - Danielle R J Verboogen
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center , Nijmegen , The Netherlands ; and Department of Molecular Immunology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen , Groningen , The Netherlands
| | - Natalia H Revelo
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center , Nijmegen , The Netherlands ; and Department of Molecular Immunology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen , Groningen , The Netherlands
| | - Martin Ter Beest
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center , Nijmegen , The Netherlands ; and Department of Molecular Immunology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen , Groningen , The Netherlands
| | - Geert van den Bogaart
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center , Nijmegen , The Netherlands ; and Department of Molecular Immunology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen , Groningen , The Netherlands
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15
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Liang XH, Sun H, Nichols JG, Allen N, Wang S, Vickers TA, Shen W, Hsu CW, Crooke ST. COPII vesicles can affect the activity of antisense oligonucleotides by facilitating the release of oligonucleotides from endocytic pathways. Nucleic Acids Res 2018; 46:10225-10245. [PMID: 30239896 PMCID: PMC6212795 DOI: 10.1093/nar/gky841] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/23/2018] [Accepted: 09/10/2018] [Indexed: 12/12/2022] Open
Abstract
RNase H1-dependent, phosphorothioate-modified antisense oligonucleotides (PS-ASOs) can enter cells through endocytic pathways and need to be released from the membrane-enclosed organelles, a limiting step for antisense activity. Accumulating evidence has suggested that productive PS-ASO release mainly occurs from late endosomes (LEs). However, how PS-ASOs escape from LEs is not well understood. Here, we report that upon PS-ASO incubation, COPII vesicles, normally involved in ER-Golgi transport, can re-locate to PS-ASO-containing LEs. Reduction of COPII coat proteins significantly decreased PS-ASO activity, without affecting the levels of PS-ASO uptake and early-to-late endosome transport, but caused slower PS-ASO release from LEs. COPII co-localization with PS-ASOs at LEs does not require de novo assembly of COPII at ER. Interestingly, reduction of STX5 and P115, proteins involved in tethering and fusion of COPII vesicles with Golgi membranes, impaired COPII re-localization to LEs and decreased PS-ASO activity. STX5 can re-locate to LEs upon PS-ASO incubation, can bind PS-ASOs, and the binding appears to be required for this pathway. Our study reveals a novel release pathway in which PS-ASO incubation causes LE re-localization of STX5, which mediates the recruitment of COPII vesicles to LEs to facilitate endosomal PS-ASO release, and identifies another key PS-ASO binding protein.
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Affiliation(s)
- Xue-hai Liang
- Core Antisense Research, Ionis Pharmaceuticals, Inc. 2855 Gazelle Court, Carlsbad, CA 92010, USA
| | - Hong Sun
- Core Antisense Research, Ionis Pharmaceuticals, Inc. 2855 Gazelle Court, Carlsbad, CA 92010, USA
| | - Joshua G Nichols
- Core Antisense Research, Ionis Pharmaceuticals, Inc. 2855 Gazelle Court, Carlsbad, CA 92010, USA
| | - Nickolas Allen
- Core Antisense Research, Ionis Pharmaceuticals, Inc. 2855 Gazelle Court, Carlsbad, CA 92010, USA
| | - Shiyu Wang
- Core Antisense Research, Ionis Pharmaceuticals, Inc. 2855 Gazelle Court, Carlsbad, CA 92010, USA
| | - Timothy A Vickers
- Core Antisense Research, Ionis Pharmaceuticals, Inc. 2855 Gazelle Court, Carlsbad, CA 92010, USA
| | - Wen Shen
- Core Antisense Research, Ionis Pharmaceuticals, Inc. 2855 Gazelle Court, Carlsbad, CA 92010, USA
| | - Chih-Wei Hsu
- Core Antisense Research, Ionis Pharmaceuticals, Inc. 2855 Gazelle Court, Carlsbad, CA 92010, USA
| | - Stanley T Crooke
- Core Antisense Research, Ionis Pharmaceuticals, Inc. 2855 Gazelle Court, Carlsbad, CA 92010, USA
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16
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McWilliam HEG, Villadangos JA. MR1 antigen presentation to MAIT cells: new ligands, diverse pathways? Curr Opin Immunol 2018; 52:108-113. [DOI: 10.1016/j.coi.2018.04.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 04/19/2018] [Indexed: 01/10/2023]
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17
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Ohshima H. Oral biosciences: The annual review 2017. J Oral Biosci 2018. [DOI: 10.1016/j.job.2017.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Ikezawa M, Tajika Y, Ueno H, Murakami T, Inoue N, Yorifuji H. Loss of VAMP5 in mice results in duplication of the ureter and insufficient expansion of the lung. Dev Dyn 2018; 247:754-762. [DOI: 10.1002/dvdy.24618] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 12/19/2017] [Accepted: 01/05/2018] [Indexed: 01/08/2023] Open
Affiliation(s)
- Maiko Ikezawa
- Department of Rehabilitation Science, Graduate School of Health Science; Gunma University; 39-22 Showa-machi 3-chome, Maebashi Gunma Japan
- Department of Anatomy, Graduate School of Medicine; Gunma University; 39-22 Showa-machi 3-chome, Maebashi Gunma Japan
| | - Yuki Tajika
- Department of Anatomy, Graduate School of Medicine; Gunma University; 39-22 Showa-machi 3-chome, Maebashi Gunma Japan
| | - Hitoshi Ueno
- Department of Anatomy, Graduate School of Medicine; Gunma University; 39-22 Showa-machi 3-chome, Maebashi Gunma Japan
| | - Tohru Murakami
- Department of Anatomy, Graduate School of Medicine; Gunma University; 39-22 Showa-machi 3-chome, Maebashi Gunma Japan
| | - Naokazu Inoue
- Research Institute for Microbial Diseases; Osaka University; Suita Osaka Japan
| | - Hiroshi Yorifuji
- Department of Anatomy, Graduate School of Medicine; Gunma University; 39-22 Showa-machi 3-chome, Maebashi Gunma Japan
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19
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Shitara A, Shibui T, Okayama M, Arakawa T, Mizoguchi I, Sakakura Y, Takuma T. VAMP4 and its cognate SNAREs are required for maintaining the ribbon structure of the Golgi apparatus. J Oral Biosci 2017. [DOI: 10.1016/j.job.2017.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Gomi H, Osawa H, Uno R, Yasui T, Hosaka M, Torii S, Tsukise A. Canine Salivary Glands: Analysis of Rab and SNARE Protein Expression and SNARE Complex Formation With Diverse Tissue Properties. J Histochem Cytochem 2017; 65:637-653. [PMID: 28914590 DOI: 10.1369/0022155417732527] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The comparative structure and expression of salivary components and vesicular transport proteins in the canine major salivary glands were investigated. Histochemical analysis revealed that the morphology of the five major salivary glands-parotid, submandibular, polystomatic sublingual, monostomatic sublingual, and zygomatic glands-was greatly diverse. Immunoblot analysis revealed that expression levels of α-amylase and antimicrobial proteins, such as lysozyme, lactoperoxidase, and lactoferrin, differed among the different glands. Similarly, Rab proteins (Rab3d, Rab11a, Rab11b, Rab27a, and Rab27b) and soluble N-ethylmaleimide-sensitive fusion protein attachment protein receptor (SNARE) proteins VAMP4, VAMP8, syntaxin-2, syntaxin-3, syntaxin-4, and syntaxin-6 were expressed at various levels in individual glands. mmunohistochemistry of Rab3d, Rab11b, Rab27b, VAMP4, VAMP8, syntaxin-4, and syntaxin-6 revealed their predominant expression in serous acinar cells, demilunes, and ductal cells. The VAMP4/syntaxin-6 SNARE complex, which is thought to be involved in the maturation of secretory granules in the Golgi field, was found more predominantly in the monostomatic sublingual gland than in the parotid gland. These results suggest that protein expression profiles in canine salivary glands differ among individual glands and reflect the properties of their specialized functions.
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Affiliation(s)
- Hiroshi Gomi
- Department of Veterinary Anatomy, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
| | - Hiromi Osawa
- Department of Veterinary Anatomy, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
| | - Rie Uno
- Department of Veterinary Anatomy, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
| | - Tadashi Yasui
- Department of Veterinary Anatomy, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
| | - Masahiro Hosaka
- Laboratory of Molecular Life Sciences, Department of Biotechnology, Akita Prefectural University, Akita, Japan
| | - Seiji Torii
- Laboratory of Secretion Biology, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Azuma Tsukise
- Department of Veterinary Anatomy, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
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21
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How MR1 Presents a Pathogen Metabolic Signature to Mucosal-Associated Invariant T (MAIT) Cells. Trends Immunol 2017; 38:679-689. [DOI: 10.1016/j.it.2017.06.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 05/16/2017] [Accepted: 06/12/2017] [Indexed: 12/12/2022]
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22
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Zhang X, Jiang S, Mitok KA, Li L, Attie AD, Martin TFJ. BAIAP3, a C2 domain-containing Munc13 protein, controls the fate of dense-core vesicles in neuroendocrine cells. J Cell Biol 2017. [PMID: 28626000 PMCID: PMC5496627 DOI: 10.1083/jcb.201702099] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Zhang et al. conducted a siRNA screen of C2 domain proteins involved in regulated peptide secretion. One of the hits, a Munc13 family member BAIAP3, was characterized as endosome localized involved in post-exocytic dense-core vesicle protein recycling to the TGN. BAIAP3 knockdown inhibited dense-core vesicle maturation/stability in neuroendocrine/endocrine cells. Dense-core vesicle (DCV) exocytosis is a SNARE (soluble N-ethylmaleimide–sensitive fusion attachment protein receptor)-dependent anterograde trafficking pathway that requires multiple proteins for regulation. Several C2 domain–containing proteins are known to regulate Ca2+-dependent DCV exocytosis in neuroendocrine cells. In this study, we identified others by screening all (∼139) human C2 domain–containing proteins by RNA interference in neuroendocrine cells. 40 genes were identified, including several encoding proteins with known roles (CAPS [calcium-dependent activator protein for secretion 1], Munc13-2, RIM1, and SYT10) and many with unknown roles. One of the latter, BAIAP3, is a secretory cell–specific Munc13-4 paralog of unknown function. BAIAP3 knockdown caused accumulation of fusion-incompetent DCVs in BON neuroendocrine cells and lysosomal degradation (crinophagy) of insulin-containing DCVs in INS-1 β cells. BAIAP3 localized to endosomes was required for Golgi trans-Golgi network 46 (TGN46) recycling, exhibited Ca2+-stimulated interactions with TGN SNAREs, and underwent Ca2+-stimulated TGN recruitment. Thus, unlike other Munc13 proteins, BAIAP3 functions indirectly in DCV exocytosis by affecting DCV maturation through its role in DCV protein recycling. Ca2+ rises that stimulate DCV exocytosis may stimulate BAIAP3-dependent retrograde trafficking to maintain DCV protein homeostasis and DCV function.
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Affiliation(s)
- Xingmin Zhang
- Department of Biochemistry, University of Wisconsin, Madison, WI.,Program in Cellular and Molecular Biology, University of Wisconsin, Madison, WI
| | - Shan Jiang
- School of Pharmacy, University of Wisconsin, Madison, WI
| | - Kelly A Mitok
- Department of Biochemistry, University of Wisconsin, Madison, WI
| | - Lingjun Li
- School of Pharmacy, University of Wisconsin, Madison, WI
| | - Alan D Attie
- Department of Biochemistry, University of Wisconsin, Madison, WI
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23
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Lamichhane R, Ussher JE. Expression and trafficking of MR1. Immunology 2017; 151:270-279. [PMID: 28419492 DOI: 10.1111/imm.12744] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 04/05/2017] [Accepted: 04/07/2017] [Indexed: 12/15/2022] Open
Abstract
MHC class I-related gene protein (MR1) is a non-polymorphic MHC class IB antigen-presenting molecule that is the restricting molecule for mucosal-associated invariant T (MAIT) cells, a prominent population of innate-like antibacterial T cells. The MAIT cell-MR1 axis represents a new paradigm in antigen presentation, with the MR1 ligand derived from vitamin B compounds or their metabolic precursors. Many bacteria and some fungi produce the activating ligand for MR1. In evolution, MR1 is highly conserved in most, but not all, mammals. In humans and rodents it is expressed in a broad range of cell types, both haematopoietic and non-haematopoietic, although cell surface expression has been difficult to detect. Although MR1 trafficking shares features with both the MHC class I and MHC class II pathways, it is distinct. Several strands of evidence suggest that the intracellular location where MR1 is loaded differs for soluble ligand and for ligand derived from intact bacteria. The regulation of MR1 surface expression may also vary between different cell types. This paper will review what is currently known about the expression and trafficking of MR1 and propose a model for the loading and trafficking of MR1.
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Affiliation(s)
- Rajesh Lamichhane
- Department of Microbiology and Immunology, University of Otago, Dunedin, New Zealand
| | - James E Ussher
- Department of Microbiology and Immunology, University of Otago, Dunedin, New Zealand
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24
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Harriff MJ, Karamooz E, Burr A, Grant WF, Canfield ET, Sorensen ML, Moita LF, Lewinsohn DM. Endosomal MR1 Trafficking Plays a Key Role in Presentation of Mycobacterium tuberculosis Ligands to MAIT Cells. PLoS Pathog 2016; 12:e1005524. [PMID: 27031111 PMCID: PMC4816560 DOI: 10.1371/journal.ppat.1005524] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 03/03/2016] [Indexed: 01/01/2023] Open
Abstract
Mucosal-Associated Invariant T (MAIT) cells, present in high frequency in airway and other mucosal tissues, have Th1 effector capacity positioning them to play a critical role in the early immune response to intracellular pathogens, including Mycobacterium tuberculosis (Mtb). MR1 is a highly conserved Class I-like molecule that presents vitamin B metabolites to MAIT cells. The mechanisms for loading these ubiquitous small molecules are likely to be tightly regulated to prevent inappropriate MAIT cell activation. To define the intracellular localization of MR1, we analyzed the distribution of an MR1-GFP fusion protein in antigen presenting cells. We found that MR1 localized to endosomes and was translocated to the cell surface upon addition of 6-formyl pterin (6-FP). To understand the mechanisms by which MR1 antigens are presented, we used a lentiviral shRNA screen to identify trafficking molecules that are required for the presentation of Mtb antigen to HLA-diverse T cells. We identified Stx18, VAMP4, and Rab6 as trafficking molecules regulating MR1-dependent MAIT cell recognition of Mtb-infected cells. Stx18 but not VAMP4 or Rab6 knockdown also resulted in decreased 6-FP-dependent surface translocation of MR1 suggesting distinct pathways for loading of exogenous ligands and intracellular mycobacterially-derived ligands. We postulate that endosome-mediated trafficking of MR1 allows for selective sampling of the intracellular environment.
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Affiliation(s)
- Melanie J. Harriff
- Portland VA Medical Center, Portland, Oregon, United States of America
- Pulmonary & Critical Care Medicine, Oregon Health & Science University, Portland, Oregon, United States of America
- * E-mail: (MJH); (DML)
| | - Elham Karamooz
- Portland VA Medical Center, Portland, Oregon, United States of America
- Pulmonary & Critical Care Medicine, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Ansen Burr
- Portland VA Medical Center, Portland, Oregon, United States of America
| | - Wilmon F. Grant
- Pulmonary & Critical Care Medicine, Oregon Health & Science University, Portland, Oregon, United States of America
| | - Elizabeth T. Canfield
- Pulmonary & Critical Care Medicine, Oregon Health & Science University, Portland, Oregon, United States of America
| | | | | | - David M. Lewinsohn
- Portland VA Medical Center, Portland, Oregon, United States of America
- Pulmonary & Critical Care Medicine, Oregon Health & Science University, Portland, Oregon, United States of America
- Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, Oregon, United States of America
- * E-mail: (MJH); (DML)
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Crawford DC, Kavalali ET. Molecular underpinnings of synaptic vesicle pool heterogeneity. Traffic 2015; 16:338-64. [PMID: 25620674 DOI: 10.1111/tra.12262] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 01/06/2015] [Indexed: 12/31/2022]
Abstract
Neuronal communication relies on chemical synaptic transmission for information transfer and processing. Chemical neurotransmission is initiated by synaptic vesicle fusion with the presynaptic active zone resulting in release of neurotransmitters. Classical models have assumed that all synaptic vesicles within a synapse have the same potential to fuse under different functional contexts. In this model, functional differences among synaptic vesicle populations are ascribed to their spatial distribution in the synapse with respect to the active zone. Emerging evidence suggests, however, that synaptic vesicles are not a homogenous population of organelles, and they possess intrinsic molecular differences and differential interaction partners. Recent studies have reported a diverse array of synaptic molecules that selectively regulate synaptic vesicles' ability to fuse synchronously and asynchronously in response to action potentials or spontaneously irrespective of action potentials. Here we discuss these molecular mediators of vesicle pool heterogeneity that are found on the synaptic vesicle membrane, on the presynaptic plasma membrane, or within the cytosol and consider some of the functional consequences of this diversity. This emerging molecular framework presents novel avenues to probe synaptic function and uncover how synaptic vesicle pools impact neuronal signaling.
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Affiliation(s)
- Devon C Crawford
- Department of Neuroscience, UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9111, USA
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Honvo-Houéto E, Truchet S. Indirect Immunofluorescence on Frozen Sections of Mouse Mammary Gland. J Vis Exp 2015. [PMID: 26650781 DOI: 10.3791/53179] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Indirect immunofluorescence is used to detect and locate proteins of interest in a tissue. The protocol presented here describes a complete and simple method for the immune detection of proteins, the mouse lactating mammary gland being taken as an example. A protocol for the preparation of the tissue samples, especially concerning the dissection of mouse mammary gland, tissue fixation and frozen tissue sectioning, are detailed. A standard protocol to perform indirect immunofluorescence, including an optional antigen retrieval step, is also presented. The observation of the labeled tissue sections as well as image acquisition and post-treatments are also stated. This procedure gives a full overview, from the collection of animal tissue to the cellular localization of a protein. Although this general method can be applied to other tissue samples, it should be adapted to each tissue/primary antibody couple studied.
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Hirata T, Fujita M, Nakamura S, Gotoh K, Motooka D, Murakami Y, Maeda Y, Kinoshita T. Post-Golgi anterograde transport requires GARP-dependent endosome-to-TGN retrograde transport. Mol Biol Cell 2015; 26:3071-84. [PMID: 26157166 PMCID: PMC4551320 DOI: 10.1091/mbc.e14-11-1568] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 07/02/2015] [Indexed: 12/20/2022] Open
Abstract
GARP (tethering factor)- and VAMP4 (v-SNARE)-dependent endosome-to-TGN retrograde transport is required for the efficient post-Golgi anterograde transport of cell-surface integral membrane proteins. Golgi-resident membrane proteins TMEM87A and TMEM87B are involved in endosome-to-TGN retrograde transport. The importance of endosome-to–trans-Golgi network (TGN) retrograde transport in the anterograde transport of proteins is unclear. In this study, genome-wide screening of the factors necessary for efficient anterograde protein transport in human haploid cells identified subunits of the Golgi-associated retrograde protein (GARP) complex, a tethering factor involved in endosome-to-TGN transport. Knockout (KO) of each of the four GARP subunits, VPS51–VPS54, in HEK293 cells caused severely defective anterograde transport of both glycosylphosphatidylinositol (GPI)-anchored and transmembrane proteins from the TGN. Overexpression of VAMP4, v-SNARE, in VPS54-KO cells partially restored not only endosome-to-TGN retrograde transport, but also anterograde transport of both GPI-anchored and transmembrane proteins. Further screening for genes whose overexpression normalized the VPS54-KO phenotype identified TMEM87A, encoding an uncharacterized Golgi-resident membrane protein. Overexpression of TMEM87A or its close homologue TMEM87B in VPS54-KO cells partially restored endosome-to-TGN retrograde transport and anterograde transport. Therefore GARP- and VAMP4-dependent endosome-to-TGN retrograde transport is required for recycling of molecules critical for efficient post-Golgi anterograde transport of cell-surface integral membrane proteins. In addition, TMEM87A and TMEM87B are involved in endosome-to-TGN retrograde transport.
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Affiliation(s)
- Tetsuya Hirata
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan WPI Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Morihisa Fujita
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Shota Nakamura
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Kazuyoshi Gotoh
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Daisuke Motooka
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Yoshiko Murakami
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan WPI Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Yusuke Maeda
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan WPI Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Taroh Kinoshita
- Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan WPI Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
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Katsumata-Kato O, Yokoyama M, Matsuki-Fukushima M, Narita T, Sugiya H, Fujita-Yoshigaki J. Secretory proteins without a transport signal are retained in secretory granules during maturation in rat parotid acinar cells. Arch Oral Biol 2015; 60:642-9. [PMID: 25703816 DOI: 10.1016/j.archoralbio.2015.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 12/22/2014] [Accepted: 01/02/2015] [Indexed: 10/24/2022]
Abstract
OBJECTIVE The acinar cells of the parotid gland are filled with numerous secretory granules (SGs), which accumulate the digestion enzyme amylase. SGs mature accompanied with membrane remodelling such as fusion and budding of small vesicles. However, little is understood about the mechanism of the condensation of SG contents during maturation. In this study, we examined whether secretory proteins need a specific signal to be retained in SGs. DESIGN To induce internalization of the luminal membrane after exocytosis, we injected the β-adrenergic agonist isoproterenol into rats. Acinar cells were then incubated with Lucifer Yellow (LY) dye as a tracer for 3h for uptake into immature secretory granules (ISGs). To observe whether LY was retained in SGs after maturation, we continued incubating the cultured acinar cells for 2 days. RESULTS The localization of LY into ISGs was confirmed by the following four methods: (1) co-localization of the fluorescence of LY and amylase by confocal laser microscopy, (2) detection of the fluorescence from purified ISGs, (3) secretion of the fluorescence together with amylase upon stimulation, and (4) observation of the intracellular localization of LY by electron microscopy. Moreover, we observed co-localization of some of the SGs with the fluorescence of LY after cell culture. CONCLUSIONS Although the fusion and budding of small vesicles may contribute to the process of granule maturation, LY remained in the SGs even after maturation. These results suggest that secretory proteins that have no transport signal are not excluded from SGs, and they are retained in SGs during granule maturation in exocrine parotid glands.
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Affiliation(s)
- Osamu Katsumata-Kato
- Department of Physiology and Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan.
| | - Megumi Yokoyama
- Department of Physiology and Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan
| | - Miwako Matsuki-Fukushima
- Department of Physiology and Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan
| | - Takanori Narita
- Laboratory of Veterinary Biochemistry, Nihon University College of Bioresource Sciences, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan
| | - Hiroshi Sugiya
- Laboratory of Veterinary Biochemistry, Nihon University College of Bioresource Sciences, 1866 Kameino, Fujisawa, Kanagawa 252-0880, Japan
| | - Junko Fujita-Yoshigaki
- Department of Physiology and Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-Nishi, Matsudo, Chiba 271-8587, Japan
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Mariga A, Zavadil J, Ginsberg SD, Chao MV. Withdrawal of BDNF from hippocampal cultures leads to changes in genes involved in synaptic function. Dev Neurobiol 2014; 75:173-92. [PMID: 25059794 DOI: 10.1002/dneu.22216] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 06/26/2014] [Accepted: 07/23/2014] [Indexed: 11/07/2022]
Abstract
Neurotrophins play a crucial role in mediating neuronal survival and synaptic plasticity. A lack of trophic factor support in the peripheral nervous system (PNS) is associated with a transcription-dependent programmed cell death process in developing sympathetic neurons. While most of the attention has been on events culminating in cell death in the PNS, the earliest events that occur after trophic factor withdrawal in the central nervous system (CNS) have not been investigated. In the CNS, brain-derived neurotrophic factor (BDNF) is widely expressed and is released in an activity-dependent manner to shape the structure and function of neuronal populations. Reduced neurotrophic factor support has been proposed as a mechanism to account for changes in synaptic plasticity during neurodevelopment to aging and neurodegenerative disorders. To this end, we performed transcriptional profiling in cultured rat hippocampal neurons. We used a TrkB ligand scavenger (TrkB-FC ) to sequester endogenous neurotrophic factor activity from hippocampal neurons in culture. Using a high-density microarray platform, we identified a significant decrease in genes that are associated with vesicular trafficking and synaptic function, as well as selective increases in MAP kinase phosphatases. A comparison of these changes with recent studies of Alzheimer's disease and cognitive impairment in postmortem brain tissue revealed striking similarities in gene expression changes for genes involved in synaptic function. These changes are relevant to a wide number of conditions in which levels of BDNF are compromised.
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Affiliation(s)
- Abigail Mariga
- Cell and Molecular Biology Program, New York University Langone Medical Center, New York, New York, 10016
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Zhu H, Li H, Wang P, Chen M, Huang Z, Li K, Li Y, He J, Han J, Zhang Q. Persistent and acute chlamydial infections induce different structural changes in the Golgi apparatus. Int J Med Microbiol 2014; 304:577-85. [PMID: 24780199 DOI: 10.1016/j.ijmm.2014.03.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 03/20/2014] [Accepted: 03/24/2014] [Indexed: 11/15/2022] Open
Abstract
Chlamydia trachomatis causes a wide range of diseases that have a significant impact on public health. Acute chlamydial infections can cause fragmentation of the Golgi compartment ensuring the lipid transportation from the host cell. However, the changes that occur in the host cell Golgi apparatus after persistent infections are unclear. Here, we examined Golgi-associated gene (golga5) transcription and expression along with the structure of the Golgi apparatus in cells persistently infected with Chlamydia trachomatis. The results showed that persistent infections caused little fragmentation of the Golgi. The results also revealed that Golgi fragmentation might be associated with the suppression of transcription of the gene golga5.
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Affiliation(s)
- Huiling Zhu
- State Key Laboratory of Biocontrol, School of Life Sciences, Department of Dermatology in the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hongmei Li
- State Key Laboratory of Biocontrol, School of Life Sciences, Department of Dermatology in the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Pu Wang
- State Key Laboratory of Biocontrol, School of Life Sciences, Department of Dermatology in the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mukai Chen
- State Key Laboratory of Biocontrol, School of Life Sciences, Department of Dermatology in the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zengwei Huang
- State Key Laboratory of Biocontrol, School of Life Sciences, Department of Dermatology in the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangzhou Sugarcane Industry Research Institute, Guangzhou, China
| | - Kunpeng Li
- State Key Laboratory of Biocontrol, School of Life Sciences, Department of Dermatology in the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yinyin Li
- State Key Laboratory of Biocontrol, School of Life Sciences, Department of Dermatology in the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jian He
- State Key Laboratory of Biocontrol, School of Life Sciences, Department of Dermatology in the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jiande Han
- State Key Laboratory of Biocontrol, School of Life Sciences, Department of Dermatology in the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Qinfen Zhang
- State Key Laboratory of Biocontrol, School of Life Sciences, Department of Dermatology in the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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