1
|
Chauhan A, Gangopadhyay S, Sharma V, Singh S, Koshta K, Singh D, Ansari KM, Srivastava V. Prenatal arsenic exposure alters keratinocyte stem cell fate through persistent activation of IGF2R-MAPK cascade leading to aggravated skin carcinogenesis in mice offspring. Mol Carcinog 2024; 63:817-833. [PMID: 38299738 DOI: 10.1002/mc.23690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/09/2024] [Accepted: 01/16/2024] [Indexed: 02/02/2024]
Abstract
Chronic exposure to arsenic (As) promotes skin carcinogenesis in humans and potentially disturbs resident stem cell dynamics, particularly during maternal and early life exposure. In the present study, we demonstrate how only prenatal arsenic exposure disturbs keratinocyte stem cell (KSC) conditioning using a BALB/c mice model. Prenatal As exposure alters the normal stemness (CD34, KRT5), differentiation (Involucrin), and proliferation (PCNA) program in skin of offspring with progression of age as observed at 2, 10, and 18 weeks. Primary KSCs isolated from exposed animal at Day-2 showed increased survival (Bax:Bcl-xL, TUNEL assay), proliferation (BrdU), and differentiation (KRT5, Involucrin) potential through the activation of pro-carcinogenic IGF2R-MAPK cascade (IGF2R-G(α)q-MEK1-ERK1/2). This was associated with reduced enrichment of histone H3K27me3 and its methylase, EZH2 along with increased binding of demethylase, KDM6A at Igf2r promoter. Altered KSCs conditioning through disturbed Igf2r imprint contributed to impaired proliferation and differentiation and an aggravated tumor response in offspring.
Collapse
Affiliation(s)
- Anchal Chauhan
- Systems Toxicology Group, FEST Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Siddhartha Gangopadhyay
- Systems Toxicology Group, FEST Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Vineeta Sharma
- Systems Toxicology Group, FEST Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
| | - Sukhveer Singh
- Systems Toxicology Group, FEST Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Kavita Koshta
- Systems Toxicology Group, FEST Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Dhirendra Singh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Animal Facility, ASSIST Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
| | - Kausar M Ansari
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Food Toxicology Laboratory, FEST Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
| | - Vikas Srivastava
- Systems Toxicology Group, FEST Division, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| |
Collapse
|
2
|
Gilleron J, Chafik A, Lacas-Gervais S, Tanti JF, Cormont M. Golgi-associated retrograde protein (GARP) complex-dependent endosomes to trans Golgi network retrograde trafficking is controlled by Rab4b. Cell Mol Biol Lett 2024; 29:54. [PMID: 38627612 PMCID: PMC11020649 DOI: 10.1186/s11658-024-00574-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 04/05/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND The trafficking of cargoes from endosomes to the trans-Golgi network requires numerous sequential and coordinated steps. Cargoes are sorted into endosomal-derived carriers that are transported, tethered, and fused to the trans-Golgi network. The tethering step requires several complexes, including the Golgi-associated retrograde protein complex, whose localization at the trans-Golgi network is determined by the activity of small GTPases of the Arl and Rab family. However, how the Golgi-associated retrograde protein complex recognizes the endosome-derived carriers that will fuse with the trans-Golgi network is still unknown. METHODS We studied the retrograde trafficking to the trans-Golgi network by using fluorescent cargoes in cells overexpressing Rab4b or after Rab4b knocked-down by small interfering RNA in combination with the downregulation of subunits of the Golgi-associated retrograde protein complex. We used immunofluorescence and image processing (Super Resolution Radial Fluctuation and 3D reconstruction) as well as biochemical approaches to characterize the consequences of these interventions on cargo carriers trafficking. RESULTS We reported that the VPS52 subunit of the Golgi-associated retrograde protein complex is an effector of Rab4b. We found that overexpression of wild type or active Rab4b increased early endosomal to trans-Golgi network retrograde trafficking of the cation-independent mannose-6-phosphate receptor in a Golgi-associated retrograde protein complex-dependent manner. Conversely, overexpression of an inactive Rab4b or Rab4b knockdown attenuated this trafficking. In the absence of Rab4b, the internalized cation-independent mannose 6 phosphate receptor did not have access to VPS52-labeled structures that look like endosomal subdomains and/or endosome-derived carriers, and whose subcellular distribution is Rab4b-independent. Consequently, the cation-independent mannose-6-phosphate receptor was blocked in early endosomes and no longer had access to the trans-Golgi network. CONCLUSION Our results support that Rab4b, by controlling the sorting of the cation-independent mannose-6-phosphate receptor towards VPS52 microdomains, confers a directional specificity for cargo carriers en route to the trans-Golgi network. Given the importance of the endocytic recycling in cell homeostasis, disruption of the Rab4b/Golgi-associated retrograde protein complex-dependent step could have serious consequences in pathologies.
Collapse
Affiliation(s)
- Jérôme Gilleron
- Université Côte d'Azur, INSERM, Mediterranean Center of Molecular Medicine (C3M), Team "Insulin Resistance in Obesity and Type 2 Diabetes", Bâtiment Archimed, 151 Route de Saint Antoine de Ginestière, BP 2 3194, 06200, Nice Cedex 03, France.
| | - Abderrahman Chafik
- Université Côte d'Azur, INSERM, Mediterranean Center of Molecular Medicine (C3M), Team "Insulin Resistance in Obesity and Type 2 Diabetes", Bâtiment Archimed, 151 Route de Saint Antoine de Ginestière, BP 2 3194, 06200, Nice Cedex 03, France
| | - Sandra Lacas-Gervais
- Université Côte d'Azur, CCMA, Centre Commun de Microscopie Appliquée (CCMA), Nice, France
| | - Jean-François Tanti
- Université Côte d'Azur, INSERM, Mediterranean Center of Molecular Medicine (C3M), Team "Insulin Resistance in Obesity and Type 2 Diabetes", Bâtiment Archimed, 151 Route de Saint Antoine de Ginestière, BP 2 3194, 06200, Nice Cedex 03, France
| | - Mireille Cormont
- Université Côte d'Azur, INSERM, Mediterranean Center of Molecular Medicine (C3M), Team "Insulin Resistance in Obesity and Type 2 Diabetes", Bâtiment Archimed, 151 Route de Saint Antoine de Ginestière, BP 2 3194, 06200, Nice Cedex 03, France.
| |
Collapse
|
3
|
Tavares LA, Rodrigues RL, Santos da Costa C, Nascimento JA, Vargas de Carvalho J, Nogueira de Carvalho A, Mardones GA, daSilva LLP. AP-1γ2 is an adaptor protein 1 variant required for endosome-to-Golgi trafficking of the mannose-6-P receptor (CI-MPR) and ATP7B copper transporter. J Biol Chem 2024; 300:105700. [PMID: 38307383 PMCID: PMC10909764 DOI: 10.1016/j.jbc.2024.105700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 02/04/2024] Open
Abstract
Selective retrograde transport from endosomes back to the trans-Golgi network (TGN) is important for maintaining protein homeostasis, recycling receptors, and returning molecules that were transported to the wrong compartments. Two important transmembrane proteins directed to this pathway are the Cation-Independent Mannose-6-phosphate receptor (CI-MPR) and the ATP7B copper transporter. Among CI-MPR functions is the delivery of acid hydrolases to lysosomes, while ATP7B facilitates the transport of cytosolic copper ions into organelles or the extracellular space. Precise subcellular localization of CI-MPR and ATP7B is essential for the proper functioning of these proteins. This study shows that both CI-MPR and ATP7B interact with a variant of the clathrin adaptor 1 (AP-1) complex that contains a specific isoform of the γ-adaptin subunit called γ2. Through synchronized anterograde trafficking and cell-surface uptake assays, we demonstrated that AP-1γ2 is dispensable for ATP7B and CI-MPR exit from the TGN while being critically required for ATP7B and CI-MPR retrieval from endosomes to the TGN. Moreover, AP-1γ2 depletion leads to the retention of endocytosed CI-MPR in endosomes enriched in retromer complex subunits. These data underscore the importance of AP-1γ2 as a key component in the sorting and trafficking machinery of CI-MPR and ATP7B, highlighting its essential role in the transport of proteins from endosomes.
Collapse
Affiliation(s)
- Lucas Alves Tavares
- Center for Virology Research and Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Roger Luiz Rodrigues
- Center for Virology Research and Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Cristina Santos da Costa
- Center for Virology Research and Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Jonas Alburqueque Nascimento
- Center for Virology Research and Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Julianne Vargas de Carvalho
- Center for Virology Research and Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Andreia Nogueira de Carvalho
- Center for Virology Research and Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Gonzalo A Mardones
- Escuela de Medicina, Facultad de Medicina y Ciencia, Universidad San Sebastián, Valdivia, Chile
| | - Luis L P daSilva
- Center for Virology Research and Department of Cell and Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil.
| |
Collapse
|
4
|
Ahn G, Riley NM, Kamber RA, Wisnovsky S, Moncayo von Hase S, Bassik MC, Banik SM, Bertozzi CR. Elucidating the cellular determinants of targeted membrane protein degradation by lysosome-targeting chimeras. Science 2023; 382:eadf6249. [PMID: 37856615 PMCID: PMC10766146 DOI: 10.1126/science.adf6249] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 08/31/2023] [Indexed: 10/21/2023]
Abstract
Targeted protein degradation can provide advantages over inhibition approaches in the development of therapeutic strategies. Lysosome-targeting chimeras (LYTACs) harness receptors, such as the cation-independent mannose 6-phosphate receptor (CI-M6PR), to direct extracellular proteins to lysosomes. In this work, we used a genome-wide CRISPR knockout approach to identify modulators of LYTAC-mediated membrane protein degradation in human cells. We found that disrupting retromer genes improved target degradation by reducing LYTAC recycling to the plasma membrane. Neddylated cullin-3 facilitated LYTAC-complex lysosomal maturation and was a predictive marker for LYTAC efficacy. A substantial fraction of cell surface CI-M6PR remains occupied by endogenous M6P-modified glycoproteins. Thus, inhibition of M6P biosynthesis increased the internalization of LYTAC-target complexes. Our findings inform design strategies for next-generation LYTACs and elucidate aspects of cell surface receptor occupancy and trafficking.
Collapse
Affiliation(s)
- Green Ahn
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
| | - Nicholas M. Riley
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
| | - Roarke A. Kamber
- Department of Genetics, Stanford University, Stanford, CA 94305, USA
| | - Simon Wisnovsky
- Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Salvador Moncayo von Hase
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
| | - Michael C. Bassik
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
- Department of Genetics, Stanford University, Stanford, CA 94305, USA
| | - Steven M. Banik
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
| | - Carolyn R. Bertozzi
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA 94305, USA
- Howard Hughes Medical Institute, Stanford University, Stanford, CA 94305, USA
| |
Collapse
|
5
|
Yu J, Li H, Fang T, Yun C, Liu X, Xu J, Jiang X, Cai X. Harnessing the Lysosomal Sorting Signals of the Cation-Independent Mannose-6-Phosphate Receptor for Targeted Degradation of Membrane Proteins. J Am Chem Soc 2023; 145:19107-19119. [PMID: 37552887 DOI: 10.1021/jacs.3c07687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Membrane proteins are a crucial class of therapeutic targets that remain challenging to modulate using traditional occupancy-driven inhibition strategies or current proteolysis-targeting degradation approaches. Here, we report that the inherent endolysosomal sorting machinery can be harnessed for the targeted degradation of membrane proteins. A new degradation technique, termed signal-mediated lysosome-targeting chimeras (SignalTACs), was developed by genetically fusing the signaling motif from the cation-independent mannose-6-phosphate receptor (CI-M6PR) to a membrane protein binder. Antibody-based SignalTACs were constructed with the CI-M6PR signal peptides fused to the C-terminus of both heavy and light chains of IgG. We demonstrated the scope of this platform technology by degrading five pathogenesis-related membrane proteins, including HER2, EGFR, PD-L1, CD20, and CD71. Furthermore, two simplified constructs of SignalTACs, nanobody-based and peptide-based SignalTACs, were created and shown to promote the lysosomal degradation of target membrane proteins. Compared to the parent antibodies, SignalTACs exhibited significantly higher efficiency in inhibiting tumor cell growth both in vitro and in vivo. This work provides a simple, general, and robust strategy for degrading membrane proteins with molecular precision and may represent a powerful platform with broad research and therapeutic applications.
Collapse
Affiliation(s)
- Jinfeng Yu
- School of Pharmaceutical Sciences, Sun Yat-sen University, 132 East Outer Ring Road, Guangzhou 510006, China
| | - Haonan Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, 132 East Outer Ring Road, Guangzhou 510006, China
| | - Tong Fang
- School of Pharmaceutical Sciences, Sun Yat-sen University, 132 East Outer Ring Road, Guangzhou 510006, China
| | - Chengyu Yun
- School of Pharmaceutical Sciences, Sun Yat-sen University, 132 East Outer Ring Road, Guangzhou 510006, China
| | - Xue Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, 132 East Outer Ring Road, Guangzhou 510006, China
| | - Jingyao Xu
- School of Pharmaceutical Sciences, Sun Yat-sen University, 132 East Outer Ring Road, Guangzhou 510006, China
| | - Xianxing Jiang
- School of Pharmaceutical Sciences, Sun Yat-sen University, 132 East Outer Ring Road, Guangzhou 510006, China
| | - Xiaoqing Cai
- School of Pharmaceutical Sciences, Sun Yat-sen University, 132 East Outer Ring Road, Guangzhou 510006, China
| |
Collapse
|
6
|
Qiao W, Richards CM, Jabs S. LYSET/TMEM251- a novel key component of the mannose 6-phosphate pathway. Autophagy 2023; 19:2143-2145. [PMID: 36633450 PMCID: PMC10283412 DOI: 10.1080/15548627.2023.2167376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/06/2023] [Accepted: 01/06/2023] [Indexed: 01/13/2023] Open
Abstract
Degradation of macromolecules delivered to lysosomes by processes such as autophagy or endocytosis is crucial for cellular function. Lysosomes require more than 60 soluble hydrolases in order to catabolize such macromolecules. These soluble hydrolases are tagged with mannose6-phosphate (M6P) moieties in sequential reactions by the Golgi-resident GlcNAc-1-phosphotransferase complex and NAGPA/UCE/uncovering enzyme (N-acetylglucosamine-1-phosphodiester alpha-N-acetylglucosaminidase), which allows their delivery to endosomal/lysosomal compartments through trafficking mediated by cation-dependent and -independent mannose 6-phosphate receptors (MPRs). We and others recently identified TMEM251 as a novel regulator of the M6P pathway via independent genome-wide genetic screening strategies. We renamed TMEM251 to LYSET (lysosomal enzyme trafficking factor) to establish nomenclature reflective to this gene's function. LYSET is a Golgi-localized transmembrane protein important for the retention of the GlcNAc-1-phosphotransferase complex in the Golgi-apparatus. The current understanding of LYSET's importance regarding human biology is 3-fold: 1) highly pathogenic viruses that depend on lysosomal hydrolase activity require LYSET for infection. 2) The presence of LYSET is critical for cancer cell proliferation in nutrient-deprived environments in which extracellular proteins must be catabolized. 3) Inherited pathogenic alleles of LYSET can cause a severe inherited disease which resembles GlcNAc-1-phosphotransferase deficiency (i.e., mucolipidosis type II).Abbreviations: GlcNAc-1-PT: GlcNAc-1-phosphotransferase; KO: knockout; LSD: lysosomal storage disorder; LYSET: lysosomal enzyme trafficking factor; M6P: mannose 6-phosphate; MPRs: mannose-6-phosphate receptors, cation-dependent or -independent; MBTPS1/site-1 protease: membrane bound transcription factor peptidase, site 1; MLII: mucolipidosis type II; WT: wild-type.
Collapse
Affiliation(s)
- Wenjie Qiao
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Christopher M. Richards
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
| | - Sabrina Jabs
- Institute of Clinical Molecular Biology, Christian-Albrechts-University and University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Schleswig-Holstein, Germany
| |
Collapse
|
7
|
Lin HJ, Mahendran R, Huang HY, Chiu PL, Chang YM, Day CH, Chen RJ, Padma VV, Liang-Yo Y, Kuo WW, Huang CY. Aqueous extract of Solanum nigrum attenuates Angiotensin-II induced cardiac hypertrophy and improves cardiac function by repressing protein kinase C-ζ to restore HSF2 deSUMOlyation and Mel-18-IGF-IIR signaling suppression. J Ethnopharmacol 2022; 284:114728. [PMID: 34634367 DOI: 10.1016/j.jep.2021.114728] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 10/05/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Solanum nigrum, commonly known as Makoi or black shade has been traditionally used in Asian countries and other regions of world to treat liver disorders, diarrhoea, inflammatory conditions, chronic skin ailments (psoriasis and ringworm), fever, hydrophobia, painful periods, eye diseases, etc. It has been observed that S. nigrum contains substances, like steroidal saponins, total alkaloid, steroid alkaloid, and glycoprotein, which show anti-tumor activity. However; there is no scientific evidence of the efficacy of S. nigrum in the treatment of cardiac hypertrophy. AIM To investigate the ability of S. nigrum to attenuate Angiotensin II - induced cardiac hypertrophy and improve cardiac function through the suppression of protein kinase PKC-ζ and Mel-18-IGF-IIR signaling leading to the restoration of HSF2 desumolyation. MATERIALS AND METHODS Cardiomyoblast cells (H9c2) were challenged with 100 nM Angiotensin-II (AngII) for 24 h and were then treated with different concentration of S.nigrum or Calphostin C for 24 h. The hypertrophic effect in cardiomyoblast cells were determined by immunofluorescence staining and the modulations in hypertrophic protein marker along with Protein Kinase C-ζ, MEL18, HSF2, and Insulin like growth factor II (IGFIIR), markers were analyzed by western blotting. In vivo experiments were performed using 12 week old male Wistar Kyoto rats (WKY) and Spontaneously hypertensive rats (SHR) separated into five groups. [1]Control WKY, [2] WKY -100 mg/kg of S.nigrum treatment, [3] SHR, [4] SHR-100 mg/kg of S.nigrum treatment, [5] SHR-300 mg/kg of S.nigrum treatment. S. nigrum was administered intraperitoneally for 8 week time interval. RESULTS Western blotting results indicate that S. nigrum significantly attenuates AngII induced cardiac hypertrophy. Furthermore, actin staining confirmed the ability of S. nigrum to ameliorate AngII induced cardiac hypertrophy. Moreover, S. nigrum administration suppressed the hypertrophic signaling mediators like Protein Kinase C-ζ, Mel-18, and IGFIIR in a dose-dependent manner and HSF2 activation (restore deSUMOlyation) that leads to downregulation of IGF-IIR expression. Additionally in vivo experiments demonstrate the reduced heart sizes of S. nigrum treated SHRs rats when compared to control WKY rats. CONCLUSION Collectively, the data reveals the cardioprotective effect of S. nigrum inhibiting PKC-ζ with alleviated IGF IIR level in the heart that profoundly remits cardiac hypertrophy for hypertension-induced heart failure.
Collapse
Affiliation(s)
- Hung-Jen Lin
- School of Post-Baccalaureate Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Ramasamy Mahendran
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Hsiang-Yen Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung City, 40402, Taiwan, ROC
| | - Ping-Ling Chiu
- Ept Douliu Chinese Medical Clinic, Douliu, Taiwan; 1PT Biotechnology Co., Ltd., Taichung, Taiwan
| | - Yung-Ming Chang
- 1PT Biotechnology Co., Ltd., Taichung, Taiwan; The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung, Taiwan
| | - Cecilia Hsuan Day
- Department of Nursing, Mei Ho University, Pingguang Road, Pingtung, Taiwan
| | - Ray-Jade Chen
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - V Vijaya Padma
- Department of Biotechnology, Bharathiar University, Coimbatore, India
| | - Yang Liang-Yo
- Department of Physiology, School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan; Laboratory for Neural Repair, China Medical University Hospital, Taichung, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, College of Life Sciences, China Medical University, Taichuang, 406, Taiwan; Ph.D. Program for Biotechnology Industry, China Medical University, Taichuang, 406, Taiwan
| | - Chih-Yang Huang
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan; Department of Biological Science and Technology, College of Life Sciences, China Medical University, Taichuang, 406, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan; Department of Biotechnology, Asia University, Taichung, Taiwan; Center of General Education, Buddhist Tzu Chi Medical Foundation, Tzu Chi University of Science and Technology, Hualien, 970, Taiwan.
| |
Collapse
|
8
|
Díaz del Moral S, Benaouicha M, Muñoz-Chápuli R, Carmona R. The Insulin-like Growth Factor Signalling Pathway in Cardiac Development and Regeneration. Int J Mol Sci 2021; 23:ijms23010234. [PMID: 35008660 PMCID: PMC8745665 DOI: 10.3390/ijms23010234] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/24/2021] [Accepted: 12/24/2021] [Indexed: 12/18/2022] Open
Abstract
Insulin and Insulin-like growth factors (IGFs) perform key roles during embryonic development, regulating processes of cell proliferation and survival. The IGF signalling pathway comprises two IGFs (IGF1, IGF2), two IGF receptors (IGFR1, IGFR2), and six IGF binding proteins (IGFBPs) that regulate IGF transport and availability. The IGF signalling pathway is essential for cardiac development. IGF2 is the primary mitogen inducing ventricular cardiomyocyte proliferation and morphogenesis of the compact myocardial wall. Conditional deletion of the Igf1r and the insulin receptor (Insr) genes in the myocardium results in decreased cardiomyocyte proliferation and ventricular wall hypoplasia. The significance of the IGF signalling pathway during embryonic development has led to consider it as a candidate for adult cardiac repair and regeneration. In fact, paracrine IGF2 plays a key role in the transient regenerative ability of the newborn mouse heart. We aimed to review the current knowledge about the role played by the IGF signalling pathway during cardiac development and also the clinical potential of recapitulating this developmental axis in regeneration of the adult heart.
Collapse
Affiliation(s)
- Sandra Díaz del Moral
- Institute of Biomedical Research of Málaga (IBIMA), Department of Animal Biology, Andalusian Center for Nanomedicine and Biotechnology (BIONAND), Faculty of Science, University of Málaga, 29071 Malaga, Spain; (S.D.d.M.); (M.B.); (R.M.-C.)
| | - Maha Benaouicha
- Institute of Biomedical Research of Málaga (IBIMA), Department of Animal Biology, Andalusian Center for Nanomedicine and Biotechnology (BIONAND), Faculty of Science, University of Málaga, 29071 Malaga, Spain; (S.D.d.M.); (M.B.); (R.M.-C.)
| | - Ramón Muñoz-Chápuli
- Institute of Biomedical Research of Málaga (IBIMA), Department of Animal Biology, Andalusian Center for Nanomedicine and Biotechnology (BIONAND), Faculty of Science, University of Málaga, 29071 Malaga, Spain; (S.D.d.M.); (M.B.); (R.M.-C.)
| | - Rita Carmona
- Institute of Biomedical Research of Málaga (IBIMA), Department of Animal Biology, Andalusian Center for Nanomedicine and Biotechnology (BIONAND), Faculty of Science, University of Málaga, 29071 Malaga, Spain; (S.D.d.M.); (M.B.); (R.M.-C.)
- Department of Human Anatomy and Embryology, Legal Medicine and History of Medicine, Faculty of Medicine, University of Málaga, 29071 Malaga, Spain
- Correspondence:
| |
Collapse
|
9
|
Dorel M, Klinger B, Mari T, Toedling J, Blanc E, Messerschmidt C, Nadler-Holly M, Ziehm M, Sieber A, Hertwig F, Beule D, Eggert A, Schulte JH, Selbach M, Blüthgen N. Neuroblastoma signalling models unveil combination therapies targeting feedback-mediated resistance. PLoS Comput Biol 2021; 17:e1009515. [PMID: 34735429 PMCID: PMC8604339 DOI: 10.1371/journal.pcbi.1009515] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 11/19/2021] [Accepted: 10/01/2021] [Indexed: 12/20/2022] Open
Abstract
Very high risk neuroblastoma is characterised by increased MAPK signalling, and targeting MAPK signalling is a promising therapeutic strategy. We used a deeply characterised panel of neuroblastoma cell lines and found that the sensitivity to MEK inhibitors varied drastically between these cell lines. By generating quantitative perturbation data and mathematical modelling, we determined potential resistance mechanisms. We found that negative feedbacks within MAPK signalling and via the IGF receptor mediate re-activation of MAPK signalling upon treatment in resistant cell lines. By using cell-line specific models, we predict that combinations of MEK inhibitors with RAF or IGFR inhibitors can overcome resistance, and tested these predictions experimentally. In addition, phospho-proteomic profiling confirmed the cell-specific feedback effects and synergy of MEK and IGFR targeted treatment. Our study shows that a quantitative understanding of signalling and feedback mechanisms facilitated by models can help to develop and optimise therapeutic strategies. Our findings should be considered for the planning of future clinical trials introducing MEKi in the treatment of neuroblastoma.
Collapse
Affiliation(s)
- Mathurin Dorel
- Institute of Pathology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Integrative Research Institute for the Life Sciences and Institute for Theoretical Biology, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Bertram Klinger
- Institute of Pathology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Integrative Research Institute for the Life Sciences and Institute for Theoretical Biology, Humboldt-Universität zu Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), partner site Berlin, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Tommaso Mari
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Joern Toedling
- Department of Pediatric, Division of Oncology and Haematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Eric Blanc
- Berlin Institute of Health, Berlin, Germany
| | | | | | - Matthias Ziehm
- Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Anja Sieber
- Institute of Pathology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Integrative Research Institute for the Life Sciences and Institute for Theoretical Biology, Humboldt-Universität zu Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), partner site Berlin, Germany
| | - Falk Hertwig
- Department of Pediatric, Division of Oncology and Haematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | | | - Angelika Eggert
- Department of Pediatric, Division of Oncology and Haematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), partner site Berlin, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
| | - Johannes H. Schulte
- Department of Pediatric, Division of Oncology and Haematology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- German Cancer Consortium (DKTK), partner site Berlin, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
| | | | - Nils Blüthgen
- Institute of Pathology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Integrative Research Institute for the Life Sciences and Institute for Theoretical Biology, Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health, Berlin, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
| |
Collapse
|
10
|
Pandey S, Kuo CH, Chen WST, Yeh YL, Kuo WW, Chen RJ, Day CH, Pai PY, Ho TJ, Huang CY. Perturbed ER homeostasis by IGF-IIRα promotes cardiac damage under stresses. Mol Cell Biochem 2021; 477:143-152. [PMID: 34586566 DOI: 10.1007/s11010-021-04261-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 09/08/2021] [Indexed: 11/26/2022]
Abstract
The heart is a very dynamic pumping organ working perpetually to maintain a constant blood supply to the whole body to transport oxygen and nutrients. Unfortunately, it is also subjected to various stresses based on physiological or pathological conditions, particularly more vulnerable to damages caused by oxidative stress. In this study, we investigate the molecular mechanism and contribution of IGF-IIRα in endoplasmic reticulum stress induction in the heart under doxorubicin-induced cardiotoxicity. Using in vitro H9c2 cells, in vivo transgenic rat cardiac tissues, siRNAs against CHOP, chemical ER chaperone PBA, and western blot experiments, we found that IGF-IIRα overexpression enhanced ER stress markers ATF4, ATF6, IRE1α, and PERK which were further aggravated by DOX treatment. This was accompanied by a significant perturbation in stress-associated MAPKs such as p38 and JNK. Interestingly, PARKIN, a stress responsive cellular protective mediator was significantly downregulated by IGF-IIRα concomitant with decreased expression of ER chaperone GRP78. Furthermore, ER stress-associated pro-apoptotic factor CHOP was increased considerably in a dose-dependent manner followed by elevated c-caspase-12 and c-caspase-3 activities. Conversely, treatment of H9c2 cells with chemical ER chaperone PBA or siRNA against CHOP abolished the IGF-IIRα-induced ER stress responses. Altogether, these findings suggested that IGF-IIRα contributes to ER stress induction and inhibits cellular stress coping proteins while increasing pro-apoptotic factors feeding into a cardio myocyte damage program that eventually paves the way to heart failure.
Collapse
Affiliation(s)
- Sudhir Pandey
- Graduate Institute of Biomedical Science, China Medical University, Taichung, Taiwan
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, 970, Taiwan
| | - Chia-Hua Kuo
- Laboratory of Sports Nutrition, University of Taipei, Taipei, Taiwan
| | | | - Yu-Lan Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
- Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Ray-Jade Chen
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Cecilia Hsuan Day
- Department of Nursing, Mei Ho University, Pingguang Road, Pingtung, Taiwan
| | - Pei-Ying Pai
- Division of Cardiology, China Medical University Hospital, Taichung, Taiwan
| | - Tsung-Jung Ho
- Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Hualien, 970, Taiwan.
- School of Post-Baccalaureate Chinese Medicine, College of Medicine, Tzu Chi University, Hualien, Taiwan.
- Department of Chinese Medicine, Hualien Tzu Chi Hospital, Hualien, Taiwan.
| | - Chih-Yang Huang
- Graduate Institute of Biomedical Science, China Medical University, Taichung, Taiwan.
- Department of Chinese Medicine, Hualien Tzu Chi Hospital, Hualien, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University, No. 91, Hsueh-Shih Road, Taichung, 404, Taiwan.
- Department of Biotechnology, Asia University, Taichung, Taiwan.
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, 970, Taiwan.
| |
Collapse
|
11
|
Zhang Z, Mou Z, Xu C, Wu S, Dai X, Chen X, Ou Y, Chen Y, Yang C, Jiang H. Autophagy-associated circular RNA hsa_circ_0007813 modulates human bladder cancer progression via hsa-miR-361-3p/IGF2R regulation. Cell Death Dis 2021; 12:778. [PMID: 34365465 PMCID: PMC8349354 DOI: 10.1038/s41419-021-04053-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 01/07/2023]
Abstract
Circular RNAs (circRNAs) drive several cellular processes including proliferation, survival, and differentiation. Here, we identified a circRNA hsa_circ_0007813, whose expression was upregulated in bladder cancer. High hsa_circ_0007813 expression was associated with larger tumor size, higher primary tumor T stage, and higher pathologic grade. Survival analysis showed that patients with high hsa_circ_0007813 expression levels had a poorer prognosis. Based on these findings from clinical tissue samples and cell lines, we assumed that hsa_circ_0007813 functioned a vital role in bladder cancer progression. Next, functional experiments revealed that knockdown of hsa_circ_0007813 inhibited proliferation, migration, and invasiveness of bladder cancer cells both in vitro and in vivo. Through extensive bioinformatic prediction and RNA pull-down assays, we identified hsa-miR-361-3p as a competing endogenous RNA of hsa_circ_0007813. Further bioinformatic studies narrowed targets to 35 possible downstream genes. We then found that knockdown of hsa_circ_0007813 led to altered cell autophagy, bringing our attention to IGF2R, one of the possible downstream genes. IGF2R was also known as cation-independent mannose-6-phosphate receptor (CI-M6PR), was discovered to participate in both autophagy and tumor biology. Regarding autophagy has a dominant role in the survival of tumor cells overcoming cellular stress and correlates with tumor progression, investigations were made to prove that hsa_circ_0007813 could regulate IGF2R expression via hsa-miR-361-3p sponging. The potential of hsa_circ_0007813 in regulating IGF2R expression explained its influence on cell behavior and clinical outcomes. Collectively, our data could offer new insight into the biology of circRNA in bladder cancer.
Collapse
Affiliation(s)
- Zheyu Zhang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
- Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Zezhong Mou
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
- Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Chenyang Xu
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
- Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Siqi Wu
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
- Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiyu Dai
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
- Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Xinan Chen
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
- Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yuxi Ou
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
- Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yiling Chen
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China
- Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China
| | - Chen Yang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China.
- Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China.
- National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China.
| | - Haowen Jiang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China.
- Fudan Institute of Urology, Huashan Hospital, Fudan University, Shanghai, China.
- National Clinical Research Center for Aging and Medicine, Fudan University, Shanghai, China.
| |
Collapse
|
12
|
Shaikh SB, Najar MA, Prabhu A, Rex DAB, Chanderasekaran J, Behera SK, Modi PK, Prasad TSK, Bhandary YP. The unique molecular targets associated antioxidant and antifibrotic activity of curcumin in in vitro model of acute lung injury: A proteomic approach. Biofactors 2021; 47:627-644. [PMID: 33864298 DOI: 10.1002/biof.1732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/24/2021] [Indexed: 12/15/2022]
Abstract
Bleomycin (BLM) injury is associated with the severity of acute lung injury (ALI) leading to fibrosis, a high-morbidity, and high-mortality respiratory disease of unknown etiology. BLM-induced ALI is marked by the activation of a potent fibrogenic cytokine transcription growth factor beta-1 (TGFβ-1), which is considered a critical cytokine in the progression of alveolar injury. Previously, our work demonstrated that a diet-derived compound curcumin (diferuloylmethane), represents its antioxidative and antifibrotic application in TGF-β1-mediated BLM-induced alveolar basal epithelial cells. However, curcumin-specific protein targets, as well as its mechanism using mass spectrometry-based proteomic approach, remain elusive. To elucidate the underlying mechanism, a quantitative proteomics approach and bioinformatics analysis were employed to identify the protein targets of curcumin in BLM or TGF-β1-treated cells. With subsequent in vitro experiments, curcumin-related pathways and cellular processes were predicted and validated. The current study discusses two separate proteomics experiments using BLM and TGF-β1-treated cells with the proteomics approach, various unique target proteins were identified, and proteomic analysis revealed that curcumin reversed the expressions of unique proteins like DNA topoisomerase 2-alpha (TOP2A), kinesin-like protein (KIF11), centromere protein F (CENPF), and so on BLM or TGF-β1 injury. For the first time, the current study reveals that curcumin restores TGF-β1 induced peroxisomes like PEX-13, PEX-14, PEX-19, and ACOX1. This was verified by subsequent in vitro assays. This study generated molecular evidence to deepen our understanding of the therapeutic role of curcumin at the proteomic level and may be useful to identify molecular targets for future drug discovery.
Collapse
Affiliation(s)
- Sadiya Bi Shaikh
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, Karnataka, India
| | - Mohd Altaf Najar
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
| | - Ashwini Prabhu
- Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, Karnataka, India
| | - D A B Rex
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
| | | | - Santosh Kumar Behera
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
| | - Prashant Kumar Modi
- Center for Systems Biology and Molecular Medicine, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore, Karnataka, India
| | | | | |
Collapse
|
13
|
Ozmen A, Kipmen-Korgun D, Isenlik BS, Erman M, Sakinci M, Berkkanoglu M, Coetzee K, Ozgur K, Cetindag E, Yanar K, Korgun ET. Does fresh or frozen embryo transfer affect imprinted gene expressions in human term placenta? Acta Histochem 2021; 123:151694. [PMID: 33571695 DOI: 10.1016/j.acthis.2021.151694] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 11/28/2022]
Abstract
Our research aimed to compare the epigenetic alterations between placentae of in vitro fertilization (IVF) patients and spontaneous pregnancies. Additionally, the expression levels of proliferation markers (PCNA, Ki67) and glucose transporter proteins (GLUT1, GLUT3) were assessed in control and IVF placentae to examine the possible consequences of epigenetic alterations on placental development. Control group placentae were obtained from spontaneous pregnancies of healthy women (n = 16). IVF placentae were obtained from fresh (n = 16) and frozen (n = 16) embryo transfer pregnancies. A group of maternal and paternal imprint genes H19, IGF2, IGF2, IGF2R, PHLDA2, PLAGL1, MASH2, GRB10, PEG1, PEG3, and PEG10 were detected by Real-Time PCR. Additionally, PCNA, Ki67, GLUT1, and GLUT3 protein levels were assessed by immunohistochemistry and western blot. In the fresh embryo transfer placenta group (fETP), gene expression of paternal PEG1 and PEG10 was upregulated compared with the control group. Increased gene expression in paternal PEG1 and maternal IGFR2 genes was detected in the frozen embryo transfer placenta group (FET) compared with the control group. Conversely, expression levels of H19 and IGF2 genes were downregulated in the FET group. On the other hand, GLUT3 and PCNA expression was increased in FET group placentae. IVF techniques affect placental imprinted gene expressions which are important for proper placental development. Imprinted genes are differently expressed in fresh ET placentae and frozen ET placentae. In conclusion, these data indicate that altered imprinted gene expression may affect glucose transport and cell proliferation, therefore play an important role in placental development.
Collapse
Affiliation(s)
- Asli Ozmen
- Department of Histology and Embryology, Medical Faculty, Akdeniz University, Antalya, Turkey
| | - Dijle Kipmen-Korgun
- Department of Biochemistry, Medical Faculty, Akdeniz University, Antalya, Turkey
| | - Bekir Sitki Isenlik
- Department of Obstetrics and Gynecology, Training and Research Hospital, Health Sciences University, Antalya, Turkey
| | - Munire Erman
- Department of Obstetrics and Gynecology, Medical Faculty, Akdeniz University, Antalya, Turkey
| | - Mehmet Sakinci
- Department of Obstetrics and Gynecology, Medical Faculty, Akdeniz University, Antalya, Turkey
| | | | - Kevin Coetzee
- Antalya IVF, Halide Edip Cd. No:7, Kanal Mh., Antalya, Turkey
| | - Kemal Ozgur
- Antalya IVF, Halide Edip Cd. No:7, Kanal Mh., Antalya, Turkey
| | - Emre Cetindag
- Department of Histology and Embryology, Medical Faculty, Akdeniz University, Antalya, Turkey
| | - Kerem Yanar
- Department of Histology and Embryology, Medical Faculty, Akdeniz University, Antalya, Turkey
| | - Emin Turkay Korgun
- Department of Histology and Embryology, Medical Faculty, Akdeniz University, Antalya, Turkey.
| |
Collapse
|
14
|
Lin YM, Badrealam KF, Kuo CH, Daddam J, Asokan Shibu M, Lin KH, Ho TJ, Viswanadha VP, Kuo WW, Huang CY. Small Molecule Compound Nerolidol attenuates Hypertension induced hypertrophy in spontaneously hypertensive rats through modulation of Mel-18-IGF-IIR signalling. Phytomedicine 2021; 84:153450. [PMID: 33611212 DOI: 10.1016/j.phymed.2020.153450] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 12/16/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Cardiovascular diseases are caused by multitudes of stress factors like hypertension and their outcomes are associated with high mortality and morbidity worldwide. Nerolidol, a naturally occurring sesquiterpene found in several plant species, embodies various pharmacological benefits against numerous health disorders. However, their effects on hypertension induced cardiac complications are not completely understood. PURPOSE The present study is to elucidate the efficacy of nerolidol against hypertension related cardiac hypertrophy in spontaneously hypertensive rats (SHRs). STUDY DESIGN For preliminary in vitro studies, H9c2 cardiomyoblasts cells were challenged with 200 nM Angiotensin-II (AngII) for 12 h and were then treated with nerolidol for 24 h. The hypertrophic effect in H9c2 cells were analyzed by actin staining and the modulations in hypertrophic protein markers and mediators were determined by Western blotting analysis. For in vivo experiments, sixteen week-old male Wistar Kyoto (WKY) and SHRs were segregated into five groups (n = 9): Control WKY, hypertensive SHRs, SHRs with low dose (75 mg/kg b.w/day) nerolidol, SHRs with high dose (150 mg/kg b.w/day) nerolidol and SHR rats treated with an anti-hypertensive drug captopril (50 mg/kg b.w/day). Nerolidol treatment was given orally for 8 weeks and were analysed through Echocardiography. After euthanasia, hematoxylin and eosin staining, Immunohistochemical analysis and Western blotting was performed on left ventricle tissue. RESULTS Western blotting analysis revealed that nerolidol significantly attenuates AngII induced expression of hypertrophic markers ANP and BNP in H9c2 cardiomyoblasts. In addition, actin staining further ascertained the potential of nerolidol to ameliorate AngII induced cardiac hypertrophy. Moreover, nerolidol administration suppressed the hypertrophic signalling mediators like calcineurin, GATA4, Mel-18, HSF-2 and IGFIIR in a dose-dependent fashion. In silico studies also ascertained the role of Mel-18 in the ameliorative effects of nerolidol. Further, these intriguing in vitro results were further confirmed in in vivo SHR model. Oral neraolidol in SHRs efficiently reduced blood pressure and ameliorated hypertension induced cardiac hypertrophic effects by effectively reducing the levels of proteins involved in cardiac MeL-18-HSF2-IGF-IIR signalling. CONCLUSION Collectively, the data reveals that the cardioprotective effect of nerolidol against hypertension induced hypertrophy involves reduction in blood pressure and regulation of the cardiac Mel-18-IGFIIR signalling cascade.
Collapse
Affiliation(s)
- Yueh-Min Lin
- Department of Pathology, Changhua Christian Hospital, Changhua 500, Taiwan; Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Taipei 11260, Taiwan
| | - Khan Farheen Badrealam
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Chia-Hua Kuo
- Laboratory of Exercise Biochemistry, University of Taipei, Taiwan
| | - Jayasimharayalu Daddam
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Marthandam Asokan Shibu
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Kuan-Ho Lin
- College of Medicine, China Medical University, Taichung, Taiwan; Department of Emergency Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Tsung-Jung Ho
- Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan; Department of Chinese Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan; School of Post-Baccalaureate Chinese Medicine, College of Medicine, Tzu Chi University, Hualien 97004, Taiwan
| | | | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung; Ph.D. Program for Biotechnology Industry, China Medical University, Taichuang 406, Taiwan
| | - Chih-Yang Huang
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan; Department of Biological Science and Technology, Asia University, Taichung, Taiwan; Center of General Education, Buddhist Tzu Chi Medical Foundation, Tzu Chi University of Science and Technology, Hualien 970, Taiwan; Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan.
| |
Collapse
|
15
|
Beletskiy A, Chesnokova E, Bal N. Insulin-Like Growth Factor 2 As a Possible Neuroprotective Agent and Memory Enhancer-Its Comparative Expression, Processing and Signaling in Mammalian CNS. Int J Mol Sci 2021; 22:ijms22041849. [PMID: 33673334 PMCID: PMC7918606 DOI: 10.3390/ijms22041849] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 12/13/2022] Open
Abstract
A number of studies performed on rodents suggest that insulin-like growth factor 2 (IGF-2) or its analogs may possibly be used for treating some conditions like Alzheimer’s disease, Huntington’s disease, autistic spectrum disorders or aging-related cognitive impairment. Still, for translational research a comparative knowledge about the function of IGF-2 and related molecules in model organisms (rats and mice) and humans is necessary. There is a number of important differences in IGF-2 signaling between species. In the present review we emphasize species-specific patterns of IGF-2 expression in rodents, humans and some other mammals, using, among other sources, publicly available transcriptomic data. We provide a detailed description of Igf2 mRNA expression regulation and pre-pro-IGF-2 protein processing in different species. We also summarize the function of IGF-binding proteins. We describe three different receptors able to bind IGF-2 and discuss the role of IGF-2 signaling in learning and memory, as well as in neuroprotection. We hope that comprehensive understanding of similarities and differences in IGF-2 signaling between model organisms and humans will be useful for development of more effective medicines targeting IGF-2 receptors.
Collapse
|
16
|
Sugiman-Marangos SN, Beilhartz GL, Zhao X, Zhou D, Hua R, Kim PK, Rini JM, Minassian BA, Melnyk RA. Exploiting the diphtheria toxin internalization receptor enhances delivery of proteins to lysosomes for enzyme replacement therapy. Sci Adv 2020; 6:6/50/eabb0385. [PMID: 33310843 PMCID: PMC7732195 DOI: 10.1126/sciadv.abb0385] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 10/21/2020] [Indexed: 05/17/2023]
Abstract
Enzyme replacement therapy, in which a functional copy of an enzyme is injected either systemically or directly into the brain of affected individuals, has proven to be an effective strategy for treating certain lysosomal storage diseases. The inefficient uptake of recombinant enzymes via the mannose-6-phosphate receptor, however, prohibits the broad utility of replacement therapy. Here, to improve the efficiency and efficacy of lysosomal enzyme uptake, we exploited the strategy used by diphtheria toxin to enter into the endolysosomal network of cells by creating a chimera between the receptor-binding fragment of diphtheria toxin and the lysosomal hydrolase TPP1. We show that chimeric TPP1 binds with high affinity to target cells and is efficiently delivered into lysosomes. Further, we show superior uptake of chimeric TPP1 over TPP1 alone in brain tissue following intracerebroventricular injection in mice lacking TPP1, demonstrating the potential of this strategy for enhancing lysosomal storage disease therapy.
Collapse
Affiliation(s)
| | - Greg L Beilhartz
- Molecular Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Xiaochu Zhao
- Department of Pediatrics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Dongxia Zhou
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
| | - Rong Hua
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
- Cell Biology Program, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, Canada
| | - Peter K Kim
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
- Cell Biology Program, The Hospital for Sick Children, 686 Bay Street, Toronto, ON, Canada
| | - James M Rini
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, ON M5S1A8, Canada
| | - Berge A Minassian
- Department of Pediatrics, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Pediatrics and Dallas Children's Medical Center, University of Texas Southwestern, Dallas, TX 75390-9063, USA
| | - Roman A Melnyk
- Molecular Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada.
- Department of Biochemistry, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
17
|
Ho TJ, Wu HC, Bharath Kumar V, Kuo WW, Weng YS, Yeh YL, Mahalakshmi B, Day CH, Li CC, Huang CY. Danshen (Salvia miltiorhiza) inhibits Leu27 IGF-II-induced hypertrophy in H9c2 cells. Environ Toxicol 2020; 35:1043-1049. [PMID: 32415908 DOI: 10.1002/tox.22940] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/11/2020] [Accepted: 04/22/2020] [Indexed: 06/11/2023]
Abstract
In this study, we used ICI 182 780 (ICI), an estrogen receptor (ER) antagonist, to investigate the estrogenic activity of Danshen, and to further explored whether Danshen extract can block Leu27IGF-II-induced hypertrophy in H9c2 cardiomyoblast cells. We first used an IGF-II analog Leu27IGF-II, which specifically activates IGF2R signaling cascades and induces H9c2 cardiomyoblast cell hypertrophy. However, Danshen extract completely inhibited Leu27IGF-II-induced cell size increase, ANP and BNP hypertrophic marker expression, and IGF2R induction. We also observed that Danshen extract inhibited calcineurin protein expression and NFAT3 nuclear translocation, leading to suppression of Leu27IGF-II-induced cardiac hypertrophy. Moreover, the anti-Leu27IGF-II-IGF2R signaling effect of Danshen was totally reversed by ICI, which suggest the cardio protective effect of Danshen is mediated through estrogen receptors. Our study suggests that, Danshen exerts estrogenic activity, and thus, it could be used as a selective ER modulator in IGFIIR induced hypertrophy model.
Collapse
Affiliation(s)
- Tsung-Jung Ho
- Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan
- Department of Chinese Medicine, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan
- School of Post-Baccalaure-ate Chinese Medicine, College of Medicine, Tzu Chi University, Hualien 97004, Taiwan
| | - Hsi Chin Wu
- Department of Urology, China Medical University Beigang Hospital, Yunlin, Taiwan
- School of Medicine, China Medical University, Taichung, Taiwan
| | - V Bharath Kumar
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Yueh-Shan Weng
- Graduate Institute of Biomedical Science, China Medical University, Taichung, Taiwan
| | - Yu-Lan Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | - B Mahalakshmi
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | | | - Chi-Cheng Li
- Center of Stem Cell & Precision Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- School of Medicine, Tzu Chi University, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Chih-Yang Huang
- Department of Biotechnology, Asia University, Taichung, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, Taichung, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Holistic Education Center, Tzu Chi University of Science and Technology, Hualien, Taiwan
- Cardiovascular and Mitochondria Related Diseases Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| |
Collapse
|
18
|
Choi YJ, Lee YA, Hong YC, Cho J, Lee KS, Shin CH, Kim BN, Kim JI, Park SJ, Bisgaard H, Bønnelykke K, Lim YH. Effect of prenatal bisphenol A exposure on early childhood body mass index through epigenetic influence on the insulin-like growth factor 2 receptor (IGF2R) gene. Environ Int 2020; 143:105929. [PMID: 32645488 DOI: 10.1016/j.envint.2020.105929] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES Epigenetic mechanisms have been suggested to play a role in the link between in utero exposure to bisphenol A (BPA) and pediatric obesity; however, there is little evidence regarding this mechanism in humans. We obtained data on obesity-associated CpG sites from a previous epigenome-wide association study, and then examined whether methylation at those CpG sites was influenced by prenatal BPA exposure. We then evaluated the relationship between CpG methylation status and body mass index (BMI) in a prospective children's cohort at ages 2, 4, 6, and 8 years. METHODS Methylation profiles of 59 children were longitudinally analyzed at ages 2 and 6 years using the Infinium Human Methylation BeadChip. A total of 594 CpG sites known to be BMI or obesity-associated sites were tested for an association with prenatal BPA levels, categorized into low and high exposure groups based on the 80th percentile of maternal BPA levels (2.68 μg/g creatinine), followed by an analysis of the association between DNA methylation and BMI from ages 2-8. RESULTS There was a significant increase in the methylation levels of cg19196862 (IGF2R) in the high BPA group at age 2 years (p = 0.00030, false discovery rate corrected p < 0.10) but not at age 6. With one standard deviation increase of methylation at cg19196862 (IGF2R) at age 2 years, the linear mixed model analysis revealed that BMI during ages 2-8 years significantly increased by 0.49 (95% confidence interval; 0.08, 0.90) in girls, but not in boys. The indirect effect of prenatal BPA exposure on early childhood BMI through methylation at cg19196862 (IGF2R) at age 2 years was marginally significant. CONCLUSIONS Prenatal exposure to BPA may influence differential methylation of IGF2R at age 2. This result indicates that a possible sensitive period of DNA methylation occurs earlier during development, which may affect BMI until later childhood in a sex-specific manner.
Collapse
Affiliation(s)
- Yoon-Jung Choi
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea; Environmental Health Center, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Young Ah Lee
- Department of Pediatrics, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Yun-Chul Hong
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea; Environmental Health Center, Seoul National University College of Medicine, Seoul 03080, Republic of Korea; Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul 03080, Republic of Korea
| | - Jinwoo Cho
- Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul 03080, Republic of Korea
| | - Kyung-Shin Lee
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea; Environmental Health Center, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Choong Ho Shin
- Department of Pediatrics, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Bung-Nyun Kim
- Division of Children and Adolescent Psychiatry, Department of Psychiatry, Seoul National University Hospital, Seoul 03080, Republic of Korea
| | - Johanna Inhyang Kim
- Department of Psychiatry, Hanyang University Medical Center, Seoul 04763, Republic of Korea
| | - Soo Jin Park
- Department of Surgery, Wonkwang University Sanbon Hospital, Gunpo 15865, Republic of Korea
| | - Hans Bisgaard
- COPSAC (Copenhagen Prospective Studies on Asthma in Childhood), Herlev and Gentofte Hospital, University of Copenhagen, 2820, Gentofte, Copenhagen, Denmark
| | - Klaus Bønnelykke
- COPSAC (Copenhagen Prospective Studies on Asthma in Childhood), Herlev and Gentofte Hospital, University of Copenhagen, 2820, Gentofte, Copenhagen, Denmark
| | - Youn-Hee Lim
- Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul 03080, Republic of Korea; Section of Environmental Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen 1014, Denmark.
| |
Collapse
|
19
|
Banik SM, Pedram K, Wisnovsky S, Ahn G, Riley NM, Bertozzi CR. Lysosome-targeting chimaeras for degradation of extracellular proteins. Nature 2020; 584:291-297. [PMID: 32728216 PMCID: PMC7727926 DOI: 10.1038/s41586-020-2545-9] [Citation(s) in RCA: 421] [Impact Index Per Article: 105.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 06/22/2020] [Indexed: 01/30/2023]
Abstract
The majority of therapies that target individual proteins rely on specific activity-modulating interactions with the target protein-for example, enzyme inhibition or ligand blocking. However, several major classes of therapeutically relevant proteins have unknown or inaccessible activity profiles and so cannot be targeted by such strategies. Protein-degradation platforms such as proteolysis-targeting chimaeras (PROTACs)1,2 and others (for example, dTAGs3, Trim-Away4, chaperone-mediated autophagy targeting5 and SNIPERs6) have been developed for proteins that are typically difficult to target; however, these methods involve the manipulation of intracellular protein degradation machinery and are therefore fundamentally limited to proteins that contain cytosolic domains to which ligands can bind and recruit the requisite cellular components. Extracellular and membrane-associated proteins-the products of 40% of all protein-encoding genes7-are key agents in cancer, ageing-related diseases and autoimmune disorders8, and so a general strategy to selectively degrade these proteins has the potential to improve human health. Here we establish the targeted degradation of extracellular and membrane-associated proteins using conjugates that bind both a cell-surface lysosome-shuttling receptor and the extracellular domain of a target protein. These initial lysosome-targeting chimaeras, which we term LYTACs, consist of a small molecule or antibody fused to chemically synthesized glycopeptide ligands that are agonists of the cation-independent mannose-6-phosphate receptor (CI-M6PR). We use LYTACs to develop a CRISPR interference screen that reveals the biochemical pathway for CI-M6PR-mediated cargo internalization in cell lines, and uncover the exocyst complex as a previously unidentified-but essential-component of this pathway. We demonstrate the scope of this platform through the degradation of therapeutically relevant proteins, including apolipoprotein E4, epidermal growth factor receptor, CD71 and programmed death-ligand 1. Our results establish a modular strategy for directing secreted and membrane proteins for lysosomal degradation, with broad implications for biochemical research and for therapeutics.
Collapse
Affiliation(s)
- Steven M Banik
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Kayvon Pedram
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Simon Wisnovsky
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Green Ahn
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | | | - Carolyn R Bertozzi
- Department of Chemistry, Stanford University, Stanford, CA, USA.
- Howard Hughes Medical Institute, Stanford, CA, USA.
| |
Collapse
|
20
|
Grover A, Crippen-Harmon D, Nave L, Vincelette J, Wait JCM, Melton AC, Lawrence R, Brown JR, Webster KA, Yip BK, Baridon B, Vitelli C, Rigney S, Christianson TM, Tiger PMN, Lo MJ, Holtzinger J, Shaywitz AJ, Crawford BE, Fitzpatrick PA, LeBowitz JH, Bullens S, Aoyagi-Scharber M, Bunting S, O'Neill CA, Pinkstaff J, Bagri A. Translational studies of intravenous and intracerebroventricular routes of administration for CNS cellular biodistribution for BMN 250, an enzyme replacement therapy for the treatment of Sanfilippo type B. Drug Deliv Transl Res 2020; 10:425-439. [PMID: 31942701 PMCID: PMC7066106 DOI: 10.1007/s13346-019-00683-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BMN 250 is being developed as enzyme replacement therapy for Sanfilippo type B, a primarily neurological rare disease, in which patients have deficient lysosomal alpha-N-acetylglucosaminidase (NAGLU) enzyme activity. BMN 250 is taken up in target cells by the cation-independent mannose 6-phosphate receptor (CI-MPR, insulin-like growth factor 2 receptor), which then facilitates transit to the lysosome. BMN 250 is dosed directly into the central nervous system via the intracerebroventricular (ICV) route, and the objective of this work was to compare systemic intravenous (IV) and ICV delivery of BMN 250 to confirm the value of ICV dosing. We first assess the ability of enzyme to cross a potentially compromised blood-brain barrier in the Naglu-/- mouse model and then assess the potential for CI-MPR to be employed for receptor-mediated transport across the blood-brain barrier. In wild-type and Naglu-/- mice, CI-MPR expression in brain vasculature is high during the neonatal period but virtually absent by adolescence. In contrast, CI-MPR remains expressed through adolescence in non-affected non-human primate and human brain vasculature. Combined results from IV administration of BMN 250 in Naglu-/- mice and IV and ICV administration in healthy juvenile non-human primates suggest a limitation to therapeutic benefit from IV administration because enzyme distribution is restricted to brain vascular endothelial cells: enzyme does not reach target neuronal cells following IV administration, and pharmacological response following IV administration is likely restricted to clearance of substrate in endothelial cells. In contrast, ICV administration enables central nervous system enzyme replacement with biodistribution to target cells.
Collapse
Affiliation(s)
- Anita Grover
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | | | - Lacey Nave
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Jon Vincelette
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Jill C M Wait
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Andrew C Melton
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Roger Lawrence
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Jillian R Brown
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | | | - Bryan K Yip
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Brian Baridon
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Catherine Vitelli
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Sara Rigney
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | | | - Pascale M N Tiger
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Melanie J Lo
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - John Holtzinger
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Adam J Shaywitz
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Brett E Crawford
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | | | | | - Sherry Bullens
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | | | - Stuart Bunting
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Charles A O'Neill
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA.
| | - Jason Pinkstaff
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| | - Anil Bagri
- BioMarin Pharmaceutical Inc., 105 Digital Drive, Novato, CA, 94949, USA
| |
Collapse
|
21
|
Yong X, Zhao L, Deng W, Sun H, Zhou X, Mao L, Hu W, Shen X, Sun Q, Billadeau DD, Xue Y, Jia D. Mechanism of cargo recognition by retromer-linked SNX-BAR proteins. PLoS Biol 2020; 18:e3000631. [PMID: 32150533 PMCID: PMC7082075 DOI: 10.1371/journal.pbio.3000631] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 03/19/2020] [Accepted: 02/21/2020] [Indexed: 12/30/2022] Open
Abstract
Endocytic recycling of internalized transmembrane proteins is essential for many important physiological processes. Recent studies have revealed that retromer-related Sorting Nexin family (SNX)–Bin/Amphiphysin/Rvs (BAR) proteins can directly recognize cargoes like cation-independent mannose 6-phosphate receptor (CI-MPR) and Insulin-like growth factor 1 receptor (IGF1R); however, it remains poorly understood how SNX-BARs select specific cargo proteins and whether they recognize additional ligands. Here, we discovered that the binding between SNX-BARs and CI-MPR or IGF1R is mediated by the phox-homology (PX) domain of SNX5 or SNX6 and a bipartite motif, termed SNX-BAR-binding motif (SBM), in the cargoes. Using this motif, we identified over 70 putative SNX-BAR ligands, many of which play critical roles in apoptosis, cell adhesion, signal transduction, or metabolite homeostasis. Remarkably, SNX-BARs could cooperate with both SNX27 and retromer in the recycling of ligands encompassing the SBM, PDZ-binding motif, or both motifs. Overall, our studies establish that SNX-BARs function as a direct cargo-selecting module for a large set of transmembrane proteins transiting the endosome, in addition to their roles in phospholipid recognition and biogenesis of tubular structures. Internalized transmembrane proteins can be recognized by specific protein complexes and diverted away from the degradation process. This study identifies a new sorting motif recognized by retromer-linked SNX-BAR proteins and reveals a large repertoire of potential cargoes recycled by the SNX-BAR proteins.
Collapse
Affiliation(s)
- Xin Yong
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Paediatrics, West China Second University Hospital, State Key Laboratory of Biotherapy and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, China
| | - Lin Zhao
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Paediatrics, West China Second University Hospital, State Key Laboratory of Biotherapy and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, China
| | - Wankun Deng
- Department of Bioinformatics & Systems Biology, Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Hongbin Sun
- School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Xue Zhou
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Paediatrics, West China Second University Hospital, State Key Laboratory of Biotherapy and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, China
| | - Lejiao Mao
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Paediatrics, West China Second University Hospital, State Key Laboratory of Biotherapy and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, China
| | - Wenfeng Hu
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Paediatrics, West China Second University Hospital, State Key Laboratory of Biotherapy and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, China
| | - Xiaofei Shen
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Paediatrics, West China Second University Hospital, State Key Laboratory of Biotherapy and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, China
| | - Qingxiang Sun
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Paediatrics, West China Second University Hospital, State Key Laboratory of Biotherapy and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, China
| | - Daniel D. Billadeau
- Division of Oncology Research and Schulze Center for Novel Therapeutics, Mayo Clinic, Rochester, Minnesota, United States of America
| | - Yu Xue
- Department of Bioinformatics & Systems Biology, Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Da Jia
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Paediatrics, West China Second University Hospital, State Key Laboratory of Biotherapy and Collaborative Innovation Center of Biotherapy, Sichuan University, Chengdu, China
- * E-mail:
| |
Collapse
|
22
|
Torrente Y, Bella P, Tripodi L, Villa C, Farini A. Role of Insulin-Like Growth Factor Receptor 2 across Muscle Homeostasis: Implications for Treating Muscular Dystrophy. Cells 2020; 9:cells9020441. [PMID: 32075092 PMCID: PMC7072799 DOI: 10.3390/cells9020441] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/11/2020] [Accepted: 02/11/2020] [Indexed: 12/11/2022] Open
Abstract
The insulin-like growth factor 2 receptor (IGF2R) plays a major role in binding and regulating the circulating and tissue levels of the mitogenic peptide insulin-like growth factor 2 (IGF2). IGF2/IGF2R interaction influences cell growth, survival, and migration in normal tissue development, and the deregulation of IGF2R expression has been associated with growth-related disease and cancer. IGF2R overexpression has been implicated in heart and muscle disease progression. Recent research findings suggest novel approaches to target IGF2R action. This review highlights recent advances in the understanding of the IGF2R structure and pathways related to muscle homeostasis.
Collapse
Affiliation(s)
- Yvan Torrente
- Correspondence: (Y.T.); (A.F.); Tel.: +39-0255033874 (Y.T.); +39-0255033852 (A.F.)
| | | | | | | | - Andrea Farini
- Correspondence: (Y.T.); (A.F.); Tel.: +39-0255033874 (Y.T.); +39-0255033852 (A.F.)
| |
Collapse
|
23
|
Tung CL, Hsieh DJY, Baskaran R, Ban B, Dung TD, Ju DT, Viswanadha VP, Day CH, Yeh YL, Huang CY. LPS-enhanced IGF-IIR pathway to induce H9c2 cardiomyoblast cell hypertrophy was attenuated by Carthamus tinctorius extract via IGF-IR activation. Environ Toxicol 2020; 35:145-151. [PMID: 31714667 DOI: 10.1002/tox.22850] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 08/13/2019] [Accepted: 08/14/2019] [Indexed: 06/10/2023]
Abstract
The use of herbs as alternative cardiovascular disease treatment has attracted a great deal of attention owing to their lower toxicity. Whether Carthamus tinctorius extract prevent cardiomyoblast cell hypertrophy remains unclear. The present study was performed to investigate the effect of C tinctorius extract (CTF) on rat cardiomyoblast cell H9c2 and the possible molecular mechanisms. H9c2 cells were treated with lipopolysaccharide (LPS; 2 μg/mL) for 12 hours, subsequently treated with CTF (1-25 μg/mL) The incubation continued for another 24 hours, and the cells were analyzed with actin staining assay, western blot analysis, and siRNA transfection assays. In the present study, the increased cell size induced by LPS was significantly decreased by pretreating at a concentration of 1-25 μg/mL CTF. It was found that CTF could inhibit cardiac hypertrophy induced by LPS and decrease hypertrophic proteins calcineurin, p-GATA-4, GATA-4, atrial natriuretic peptide, and B-type natriuretic peptide levels in H9c2 cells. Additionally, LPS-induced insulin-like growth factor-II receptor (IGF-IIR) hypertrophy pathway was downregulated by CTF. Moreover, IGF-IR siRNA or inhibitors both reversed the CTF effects, confirming that CTF activates IGF-1R to prevent LPS-induced H9c2 cardiomyoblast cell hypertrophy. The current findings indicate that CTF activates IGF-IR to inhibit IGF-IIR signaling pathway which resulted in reducing H9c2 cardiomyoblast cell hypertrophy induced by LPS.
Collapse
Affiliation(s)
- Chum-Liang Tung
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
- Department of Pathology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City, Taiwan
| | - Dennis Jine-Yuan Hsieh
- School of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung, Taiwan
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Rathinasamy Baskaran
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Bo Ban
- Department of Endocrinology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Tran Duc Dung
- School of Chinese Medicine, Viet Nam Academy of Traditional Medicine, Ha Noi, Viet Nam
| | - Da-Tong Ju
- Department of Neurological Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | | | | | - Yu-Lan Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
| | - Chih-Yang Huang
- Department of Biotechnology, Asia University, Taichung, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Cardiovascular Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Tzu Chi University of Science and Technology, Hualien, Taiwan
| |
Collapse
|
24
|
Wang R, Qi X, Schmiege P, Coutavas E, Li X. Marked structural rearrangement of mannose 6-phosphate/IGF2 receptor at different pH environments. Sci Adv 2020; 6:eaaz1466. [PMID: 32095534 PMCID: PMC7015683 DOI: 10.1126/sciadv.aaz1466] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 12/02/2019] [Indexed: 05/08/2023]
Abstract
Many cell surface receptors internalize their ligands and deliver them to endosomes, where the acidic pH causes the ligand to dissociate. The liberated receptor returns to the cell surface in a process called receptor cycling. The structural basis for pH-dependent ligand dissociation is not well understood. In some receptors, the ligand binding domain is composed of multiple repeated sequences. The insulin-like growth factor 2 receptor (IGF2R) contains 15 β strand-rich repeat domains. The overall structure and the mechanism by which IGF2R binds IGF2 and releases it are unknown. We used cryo-EM to determine the structures of the IGF2R at pH 7.4 with IGF2 bound and at pH 4.5 in the ligand-dissociated state. The results reveal different arrangements of the receptor in different pH environments mediated by changes in the interactions between the repeated sequences. These results have implications for our understanding of ligand release from receptors in endocytic compartments.
Collapse
Affiliation(s)
- Rong Wang
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xiaofeng Qi
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Philip Schmiege
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Elias Coutavas
- Laboratory of Cell Biology, The Rockefeller University, New York, NY 10065, USA
| | - Xiaochun Li
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Corresponding author.
| |
Collapse
|
25
|
Lai CH, Pandey S, Day CH, Ho TJ, Chen RJ, Chang RL, Pai PY, Padma VV, Kuo WW, Huang CY. β-catenin/LEF1/IGF-IIR Signaling Axis Galvanizes the Angiotensin-II- induced Cardiac Hypertrophy. Int J Mol Sci 2019; 20:ijms20174288. [PMID: 31480672 PMCID: PMC6747093 DOI: 10.3390/ijms20174288] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 08/23/2019] [Accepted: 08/27/2019] [Indexed: 12/14/2022] Open
Abstract
Cardiovascular diseases have a high prevalence worldwide and constitute the leading causes of mortality. Recently, malfunctioning of β-catenin signaling has been addressed in hypertensive heart condition. Ang-II is an important mediator of cardiovascular remodeling processes which not only regulates blood pressure but also leads to pathological cardiac changes. However, the contribution of Ang-II/β-catenin axis in hypertrophied hearts is ill-defined. Employing in vitro H9c2 cells and in vivo spontaneously hypertensive rats (SHR) cardiac tissue samples, western blot analysis, luciferase assays, nuclear-cytosolic protein extracts, and immunoprecipitation assays, we found that under hypertensive condition β-catenin gets abnormally induced that co-activated LEF1 and lead to cardiac hypertrophy changes by up-regulating the IGF-IIR signaling pathway. We identified putative LEF1 consensus binding site on IGF-IIR promoter that could be regulated by β-catenin/LEF1 which in turn modulate the expression of cardiac hypertrophy agents. This study suggested that suppression of β-catenin expression under hypertensive condition could be exploited as a clinical strategy for cardiac pathological remodeling processes.
Collapse
Affiliation(s)
- Chin-Hu Lai
- Graduate Institute of Basic Medical Science, China Medical University, Taichung 404, Taiwan.
- Division of Cardiovascular Surgery, Department of Surgery, Taichung Armed Force General Hospital, Taichung 411, Taiwan.
- National Defense Medical Center, Taipei 114, Taiwan.
| | - Sudhir Pandey
- Graduate Institute of Biomedical Science, China Medical University, Taichung 404, Taiwan.
| | - Cecilia Hsuan Day
- Department of Nursing, Mei Ho University, Pingguang Road, Pingtung 912, Taiwan.
| | - Tsung-Jung Ho
- Chinese Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Tzu Chi University, Hualien 970, Taiwan.
| | - Ray-Jade Chen
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Ruey-Lin Chang
- College of Chinese Medicine, School of Post-Baccalaureate Chinese Medicine, China Medical University, Taichung 404, Taiwan.
| | - Pei-Ying Pai
- Division of Cardiology, China Medical University Hospital, Taichung 404, Taiwan.
| | - V Vijaya Padma
- Department of Biotechnology, Bharathiar University, Coimbatore 641046, India.
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung 404, Taiwan.
| | - Chih-Yang Huang
- Graduate Institute of Biomedical Science, China Medical University, Taichung 404, Taiwan.
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan.
- Center of General Education, Buddhist Tzu Chi Medical Foundation, Tzu Chi University of Science and Technology, Hualien 970, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan.
- Department of Biotechnology, Asia University, Taichung 41354, Taiwan.
| |
Collapse
|
26
|
Hughes J, Surakhy M, Can S, Ducker M, Davies N, Szele F, Bühnemann C, Carter E, Trikin R, Crump MP, Frago S, Hassan AB. Maternal transmission of an Igf2r domain 11: IGF2 binding mutant allele (Igf2r I1565A) results in partial lethality, overgrowth and intestinal adenoma progression. Sci Rep 2019; 9:11388. [PMID: 31388182 PMCID: PMC6684648 DOI: 10.1038/s41598-019-47827-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 07/19/2019] [Indexed: 11/25/2022] Open
Abstract
The cation-independent mannose 6-phosphate/insulin-like growth factor-2 receptor (M6P/IGF2R or IGF2R) traffics IGF2 and M6P ligands between pre-lysosomal and extra-cellular compartments. Specific IGF2 and M6P high-affinity binding occurs via domain-11 and domains-3-5-9, respectively. Mammalian maternal Igf2r allele expression exceeds the paternal allele due to imprinting (silencing). Igf2r null-allele maternal transmission results in placenta and heart over-growth and perinatal lethality (>90%) due to raised extra-cellular IGF2 secondary to impaired ligand clearance. It remains unknown if the phenotype is due to either ligand alone, or to both ligands. Here, we evaluate Igf2r specific loss-of-function of the domain-11 IGF2 binding site by replacing isoleucine with alanine in the CD loop (exon 34, I1565A), a mutation also detected in cancers. Igf2rI1565A/+p maternal transmission (heterozygote), resulted in placental and embryonic over-growth with reduced neonatal lethality (<60%), and long-term survival. The perinatal mortality (>80%) observed in homozygotes (Igf2rI1565A/I1565A) suggested that wild-type paternal allele expression attenuates the heterozygote phenotype. To evaluate Igf2r tumour suppressor function, we utilised intestinal adenoma models known to be Igf2 dependent. Bi-allelic Igf2r expression suppressed intestinal adenoma (ApcMin). Igf2rI1565A/+p in a conditional model (Lgr5-Cre, Apcloxp/loxp) resulted in worse survival and increased adenoma proliferation. Growth, survival and intestinal adenoma appear dependent on IGF2R-domain-11 IGF2 binding.
Collapse
Affiliation(s)
- Jennifer Hughes
- Tumour Growth Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, South Parks Road, OX1 3RE, Oxford, United Kingdom
| | - Mirvat Surakhy
- Tumour Growth Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, South Parks Road, OX1 3RE, Oxford, United Kingdom
| | - Sermet Can
- Tumour Growth Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, South Parks Road, OX1 3RE, Oxford, United Kingdom
| | - Martin Ducker
- Department of Physiology, Anatomy and Genetics, University of Oxford, South Parks Road, Oxford, OX1 3PT, United Kingdom
| | - Nick Davies
- Department of Physiology, Anatomy and Genetics, University of Oxford, South Parks Road, Oxford, OX1 3PT, United Kingdom
| | - Francis Szele
- Department of Physiology, Anatomy and Genetics, University of Oxford, South Parks Road, Oxford, OX1 3PT, United Kingdom
| | - Claudia Bühnemann
- Tumour Growth Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, South Parks Road, OX1 3RE, Oxford, United Kingdom
| | - Emma Carter
- Tumour Growth Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, South Parks Road, OX1 3RE, Oxford, United Kingdom
| | - Roman Trikin
- Tumour Growth Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, South Parks Road, OX1 3RE, Oxford, United Kingdom
| | - Matthew P Crump
- Department of Organic and Biological Chemistry, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Susana Frago
- Tumour Growth Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, South Parks Road, OX1 3RE, Oxford, United Kingdom
| | - A Bassim Hassan
- Tumour Growth Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, South Parks Road, OX1 3RE, Oxford, United Kingdom.
| |
Collapse
|
27
|
Yogalingam G, Luu AR, Prill H, Lo MJ, Yip B, Holtzinger J, Christianson T, Aoyagi-Scharber M, Lawrence R, Crawford BE, LeBowitz JH. BMN 250, a fusion of lysosomal alpha-N-acetylglucosaminidase with IGF2, exhibits different patterns of cellular uptake into critical cell types of Sanfilippo syndrome B disease pathogenesis. PLoS One 2019; 14:e0207836. [PMID: 30657762 PMCID: PMC6338363 DOI: 10.1371/journal.pone.0207836] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 12/19/2018] [Indexed: 01/27/2023] Open
Abstract
Sanfilippo syndrome type B (Sanfilippo B; Mucopolysaccharidosis type IIIB) occurs due to genetic deficiency of lysosomal alpha-N-acetylglucosaminidase (NAGLU) and subsequent lysosomal accumulation of heparan sulfate (HS), which coincides with devastating neurodegenerative disease. Because NAGLU expressed in Chinese hamster ovary cells is not mannose-6-phosphorylated, we developed an insulin-like growth factor 2 (IGF2)-tagged NAGLU molecule (BMN 250; tralesinidase alfa) that binds avidly to the IGF2 / cation-independent mannose 6-phosphate receptor (CI-MPR) for glycosylation independent lysosomal targeting. BMN 250 is currently being developed as an investigational enzyme replacement therapy for Sanfilippo B. Here we distinguish two cellular uptake mechanisms by which BMN 250 is targeted to lysosomes. In normal rodent-derived neurons and astrocytes, the majority of BMN250 uptake over 24 hours reaches saturation, which can be competitively inhibited with IGF2, suggestive of CI-MPR-mediated uptake. Kuptake, defined as the concentration of enzyme at half-maximal uptake, is 5 nM and 3 nM in neurons and astrocytes, with a maximal uptake capacity (Vmax) corresponding to 764 nmol/hr/mg and 5380 nmol/hr/mg, respectively. Similar to neurons and astrocytes, BMN 250 uptake in Sanfilippo B patient fibroblasts is predominantly CI-MPR-mediated, resulting in augmentation of NAGLU activity with doses of enzyme that fall well below the Kuptake (5 nM), which are sufficient to prevent HS accumulation. In contrast, uptake of the untagged recombinant human NAGLU (rhNAGLU) enzyme in neurons, astrocytes and fibroblasts is negligible at the same doses tested. In microglia, receptor-independent uptake, defined as enzyme uptake resistant to competition with excess IGF2, results in appreciable lysosomal delivery of BMN 250 and rhNAGLU (Vmax = 12,336 nmol/hr/mg and 5469 nmol/hr/mg, respectively). These results suggest that while receptor-independent mechanisms exist for lysosomal targeting of rhNAGLU in microglia, BMN 250, by its IGF2 tag moiety, confers increased CI-MPR-mediated lysosomal targeting to neurons and astrocytes, two additional critical cell types of Sanfilippo B disease pathogenesis.
Collapse
Affiliation(s)
- Gouri Yogalingam
- Research, BioMarin Pharmaceutical, Inc., Novato, CA, United States of America
- * E-mail:
| | - Amanda R. Luu
- Research, BioMarin Pharmaceutical, Inc., Novato, CA, United States of America
| | - Heather Prill
- Research, BioMarin Pharmaceutical, Inc., Novato, CA, United States of America
| | - Melanie J. Lo
- Research, BioMarin Pharmaceutical, Inc., Novato, CA, United States of America
| | - Bryan Yip
- Research, BioMarin Pharmaceutical, Inc., Novato, CA, United States of America
| | - John Holtzinger
- Research, BioMarin Pharmaceutical, Inc., Novato, CA, United States of America
| | - Terri Christianson
- Research, BioMarin Pharmaceutical, Inc., Novato, CA, United States of America
| | | | - Roger Lawrence
- Research, BioMarin Pharmaceutical, Inc., Novato, CA, United States of America
| | - Brett E. Crawford
- Research, BioMarin Pharmaceutical, Inc., Novato, CA, United States of America
| | | |
Collapse
|
28
|
Zhang KY, Yuan WJ, Xu JD, Wang JX. Cation-dependent mannose-6-phosphate receptor functions as a pattern recognition receptor in anti-bacterial immunity of Marsupenaeus japonicus. Dev Comp Immunol 2018; 89:122-130. [PMID: 30118735 DOI: 10.1016/j.dci.2018.08.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/12/2018] [Accepted: 08/14/2018] [Indexed: 06/08/2023]
Abstract
The cation-dependent mannose-6-phosphate receptor (CD-MPR) is a member of the P-type lectin family. As a type I transmembrane glycoprotein, it functions in the delivery of newly synthesized acid hydrolases from the trans-Golgi network to endosomes for their subsequent transfer to the lysosome by binding the mannose-6-phosphate receptor-recognition moieties in the hydrolases. However, the functions of CD-MPR in immune responses are seldom reported. In the present study, we identified a CD-MPR-like molecule in Marsupenaeus japonicus and designed it as MjCD-MPR. It was significantly upregulated after challenge with Vibrio anguillarum at the mRNA and protein levels. Knockdown of MjCD-MPR resulted in a significant increase in the amount of V. anguillarum in the hemolymph of shrimp, which suggested that MjCD-MPR plays a role in shrimp antibacterial defense. The recombinant extracytoplasmic region of MjCD-MPR could bind gram-positive and gram-negative bacteria by interaction with peptidoglycan, lipopolysaccharide, and lipoteichoic acid. MjCD-MPR showed no direct bacteriostatic or bacteriocidal activity. Knockdown of MjCD-MPR decreased the expression levels of several antimicrobial peptides (Alf-C1, Alf-E1, Crustin I-2, and Crustin I-3), suggesting that MjCD-MPR promotes the expression of antimicrobial peptides in shrimp. In summary, working as a pattern recognition receptor, MjCD-MPR recognizes invading bacteria and triggers the expression of AMPs against bacterial infection in shrimp.
Collapse
Affiliation(s)
- Ke-Yi Zhang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, Shandong, China
| | - Wen-Jie Yuan
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, Shandong, China
| | - Ji-Dong Xu
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, Shandong, China
| | - Jin-Xing Wang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, Shandong, China; State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, Shandong, China.
| |
Collapse
|
29
|
Itai N, Shimazu T, Kimura T, Ibe I, Yamashita R, Kaburagi Y, Dohi T, Tonozuka T, Takao T, Nishikawa A. The phosphorylation of sorting nexin 5 at serine 226 regulates retrograde transport and macropinocytosis. PLoS One 2018; 13:e0207205. [PMID: 30419003 PMCID: PMC6231649 DOI: 10.1371/journal.pone.0207205] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 10/26/2018] [Indexed: 11/30/2022] Open
Abstract
Sorting nexin 5 (SNX5), a member of sorting nexin family, plays an important role in membrane trafficking, including the retrograde trafficking of the cation independent mannose 6-phosphate receptor (CI-M6PR) and macropinocytosis. Using ESI-LCMS/MS analysis, we confirmed that SNX5 serine 226 is phosphorylated. Since SNX5 forms heterodimers with SNX1 or SNX2, we examined the effect of phosphorylation at S226 on the heterodimer formations. Wild-type and mutants of SNX5, in which S226 was mutated to a glutamic acid or an alanine, were expressed in 8505C cells. In pull-down assays using SNX5 as bait, only the S226E mutant failed to precipitate both SNX1 and SNX2. Confocal microscopy data indicated that the wild type and S226A mutant were colocalized with SNX1 and SNX2 in endosomes, but the S226E was not. SNX5 and SNX6 support each other's functions and are involved with CI-M6PR retrograde trafficking. In SNX5 and SNX6 double knockdown cells, CI-M6PR was dispersed and colocalized with the endosomal marker EEA1. In a rescue experiment using SNX5 mutants, the S226A rescued CI-M6PR localization, similar to control cells, but S226E did not. Furthermore, the decrease in the uptake of dextran by macropinocytosis in SNX5 knockdown cells was recovered by the expression of rescue-wild type or S226A mutant, but not by the rescue-S226E mutant. These observations indicate that SNX5 constitutive phosphorylation that mimics the mutant S226E decreases the active SNX5 in these cells. The phosphorylation of SNX5 regulates the dimerization with SNX1 or SNX2, and this suggests that it controls membrane trafficking and protein sorting.
Collapse
Affiliation(s)
- Nao Itai
- Division of Applied Biological Chemistry, United graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, Japan
| | - Tsukasa Shimazu
- Department of Applied Biological Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, Japan
| | - Takayuki Kimura
- Department of Applied Biological Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, Japan
| | - Issei Ibe
- Department of Applied Biological Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, Japan
| | - Ryo Yamashita
- Department of Diabetic Complications, Diabetes Research Center, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, Japan
| | - Yasushi Kaburagi
- Department of Diabetic Complications, Diabetes Research Center, Research Institute, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo, Japan
| | - Taeko Dohi
- Department of Gastroenterology, Research Center for Hepatitis and Immunology, Research Institute, National Center for Global Health and Medicine, 1-7-1 Kohnodai, Ichikawa, Chiba, Japan
| | - Takashi Tonozuka
- Division of Applied Biological Chemistry, United graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, Japan
| | - Toshifumi Takao
- Laboratory of Protein Profiling and Functional Proteomics, Institute for Protein Research, Osaka University, 3–2 Yamadaoka, Suita, Osaka, Japan
| | - Atsushi Nishikawa
- Division of Applied Biological Chemistry, United graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, Japan
- Department of Applied Biological Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, Japan
- * E-mail:
| |
Collapse
|
30
|
Abstract
Circular RNA is a newly discovered class of non-coding RNA generated through the back-splicing of linear pre-mRNA. In the current study, we characterized two circular RNAs that had been identified through NGS-based 5’RACE experiments. According to the results, the Peg3 locus contains a 214-nucleotide-long circular RNA, circPeg3, that is detected in low abundance from the neonatal brain, lung and ovary. In contrast, the Igf2r locus contains a group of highly abundant circular RNAs, circIgf2r, showing multiple forms with various exon combinations. In both cases, the expression patterns of circPeg3 and circIgf2r among individual tissues are quite different from their linear mRNA counterparts. This suggests potential unique roles played by the identified circular RNAs. Overall, this study reports the identification of novel circular RNAs specific to mammalian imprinted loci, suggesting that circular RNAs are likely involved in the function and regulation of imprinted genes.
Collapse
Affiliation(s)
- Bambarendage P. U. Perera
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
| | - Subash Ghimire
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
| | - Joomyeong Kim
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, United States of America
- * E-mail:
| |
Collapse
|
31
|
Bannoud N, Carvelli FL, Troncoso M, Sartor T, Vargas-Roig LM, Sosa M. Cation-dependent mannose-6-phosphate receptor expression and distribution are influenced by estradiol in MCF-7 breast cancer cells. PLoS One 2018; 13:e0201844. [PMID: 30086159 PMCID: PMC6080777 DOI: 10.1371/journal.pone.0201844] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 07/22/2018] [Indexed: 01/08/2023] Open
Abstract
Cancer cells secrete procathepsin D, and its secretion is enhanced by estradiol. Although alterations in the pro-enzyme intracellular transport have been reported, the mechanism by which it is secreted remains poorly understood. In this work, we have studied the influence of estradiol on the expression and distribution of the cation-dependent mannose-6-phosphate receptor (CD-MPR), which would be a key molecule to ensure the proper localization of the enzyme to lysosomes in breast cancer cells. Immunoblotting studies demonstrated that the expression of CD-MPR is higher in MCF-7 cells, as compared to other breast cancer and non-tumorigenic cells. This expression correlated with high levels of cathepsin D (CatD) in these cells. By immunofluorescence, this receptor mostly co-localized with a Golgi marker in all cell types, exhibiting an additional peripheral labelling in MCF-7 cells. In addition, CD-MPR showed great differences regarding to cation-independent mannose-6-phosphate receptor. On the other hand, the treatment with estradiol induced an increase in CD-MPR and CatD expression and a re-distribution of both proteins towards the cell periphery. These effects were blocked by the anti-estrogen tamoxifen. Moreover, a re-distribution of CD-MPR to plasma membrane-enriched fractions, analyzed by gradient centrifugation, was observed after estradiol treatment. We conclude that, in hormone-responsive breast cancer cells, CD-MPR and CatD are distributed together, and that their expression and distribution are influenced by estradiol. These findings strongly support the involvement of the CD-MPR in the pro-enzyme transport in MCF-7 cells, suggesting the participation of this receptor in the procathepsin D secretion previously reported in breast cancer cells.
Collapse
Affiliation(s)
- N. Bannoud
- Instituto de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, CONICET, Mendoza, Argentina
| | - F. L. Carvelli
- Instituto de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, CONICET, Mendoza, Argentina
| | - M. Troncoso
- Instituto de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, CONICET, Mendoza, Argentina
| | - T. Sartor
- Instituto de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, CONICET, Mendoza, Argentina
| | - L. M. Vargas-Roig
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), CONICET, Mendoza, Argentina
| | - M. Sosa
- Instituto de Histología y Embriología (IHEM), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, CONICET, Mendoza, Argentina
- * E-mail:
| |
Collapse
|
32
|
Dalle Vedove E, Costabile G, Merkel OM. Mannose and Mannose-6-Phosphate Receptor-Targeted Drug Delivery Systems and Their Application in Cancer Therapy. Adv Healthc Mater 2018; 7:e1701398. [PMID: 29719138 PMCID: PMC6108418 DOI: 10.1002/adhm.201701398] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 02/16/2018] [Indexed: 12/21/2022]
Abstract
In order to overcome the main disadvantages of conventional cancer therapies, which prove to be inadequate because of their lack of selectivity, the development of targeted delivery systems is one of the main focuses in anticancer research. It is repeatedly shown that decorating the surface of nanocarriers with high-affinity targeting ligands, such as peptides or small molecules, is an effective way to selectively deliver therapeutics by enhancing their specific cellular uptake via the binding between a specific receptor and the nanosystems. Nowadays, the need of finding new potential biological targets with a high endocytic efficiency as well as a low tendency to mutate is urgent and, in this context, mannose and mannose-6-phosphate receptors appear promising to target anticancer drugs to cells where their expression is upregulated. Moreover, they open the path to encouraging applications in immune-based and gene therapies as well as in theragnostic purposes. In this work, the potential of mannose- and mannose-6-phosphate-targeted delivery systems in cancer therapy is discussed, emphasizing their broad application both in direct treatments against cancer cells with conventional chemotherapeutics or by gene therapy and also their encouraging capabilities in immunotherapy and diagnostics purposes.
Collapse
Affiliation(s)
- Elena Dalle Vedove
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-University, 81337 Munich, Germany
| | - Gabriella Costabile
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-University, 81337 Munich, Germany
| | - Olivia M Merkel
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-University, 81337 Munich, Germany
| |
Collapse
|
33
|
Zhao Y, Perera G, Takahashi-Fujigasaki J, Mash DC, Vonsattel JPG, Uchino A, Hasegawa K, Jeremy Nichols R, Holton JL, Murayama S, Dzamko N, Halliday GM. Reduced LRRK2 in association with retromer dysfunction in post-mortem brain tissue from LRRK2 mutation carriers. Brain 2018; 141:486-495. [PMID: 29253086 PMCID: PMC5837795 DOI: 10.1093/brain/awx344] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 10/03/2017] [Accepted: 10/25/2017] [Indexed: 12/25/2022] Open
Abstract
Missense mutations in leucine-rich repeat kinase 2 (LRRK2) are pathogenic for familial Parkinson's disease. However, it is unknown whether levels of LRRK2 protein in the brain are altered in patients with LRRK2-associated Parkinson's disease. Because LRRK2 mutations are relatively rare, accounting for approximately 1% of all Parkinson's disease, we accessioned cases from five international brain banks to investigate levels of the LRRK2 protein, and other genetically associated Parkinson's disease proteins. Brain tissue was obtained from 17 LRRK2 mutation carriers (12 with the G2019S mutation and five with the I2020T mutation) and assayed by immunoblot. Compared to matched controls and idiopathic Parkinson's disease cases, we found levels of LRRK2 protein were reduced in the LRRK2 mutation cases. We also measured a decrease in two other proteins genetically implicated in Parkinson's disease, the core retromer component, vacuolar protein sorting associated protein 35 (VPS35), and the lysosomal hydrolase, glucocerebrosidase (GBA). Moreover, the classical retromer cargo protein, cation-independent mannose-6-phosphate receptor (MPR300, encoded by IGF2R), was also reduced in the LRRK2 mutation cohort and protein levels of the receptor were correlated to levels of LRRK2. These results provide new data on LRRK2 protein expression in brain tissue from LRRK2 mutation carriers and support a relationship between LRRK2 and retromer dysfunction in LRRK2-associated Parkinson's disease brain.
Collapse
Affiliation(s)
- Ye Zhao
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Camperdown, 2050, Australia
- School of Medical Sciences, University of NSW, Kensington, 2033, Australia
- Neuroscience Research Australia, Randwick, 2031, Australia
| | - Gayathri Perera
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Camperdown, 2050, Australia
- Neuroscience Research Australia, Randwick, 2031, Australia
| | - Junko Takahashi-Fujigasaki
- Department of Neuropathology, Brain Bank for Aging Research, Tokyo Metropolitan Geriatric0 Hospital and Institute of Gerontology, Tokyo, 173-0015, Japan
| | - Deborah C Mash
- University of Miami Brain Endowment Bank™, University of Miami Miller School of Medicine, Miami, Florida, 33136, USA
| | - Jean Paul G Vonsattel
- New York Brain Bank, Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University, New York, 10032, USA
| | - Akiko Uchino
- Department of Neuropathology, Brain Bank for Aging Research, Tokyo Metropolitan Geriatric0 Hospital and Institute of Gerontology, Tokyo, 173-0015, Japan
| | - Kazuko Hasegawa
- Department of Neurology, Sagamihara National Hospital, Kangawa, 252-0315, Japan
| | - R Jeremy Nichols
- Parkinson’s Institute and Clinical Center, Sunnyvale, California, 94085, USA
| | - Janice L Holton
- Queen Square Brain Bank, UCL Institute of Neurology, University College London, London, WC1N 1PJ, UK
| | - Shigeo Murayama
- Department of Neuropathology, Brain Bank for Aging Research, Tokyo Metropolitan Geriatric0 Hospital and Institute of Gerontology, Tokyo, 173-0015, Japan
| | - Nicolas Dzamko
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Camperdown, 2050, Australia
- School of Medical Sciences, University of NSW, Kensington, 2033, Australia
- Neuroscience Research Australia, Randwick, 2031, Australia
| | - Glenda M Halliday
- Brain and Mind Centre, Sydney Medical School, University of Sydney, Camperdown, 2050, Australia
- School of Medical Sciences, University of NSW, Kensington, 2033, Australia
- Neuroscience Research Australia, Randwick, 2031, Australia
| |
Collapse
|
34
|
Chen Y, Gershlick DC, Park SY, Bonifacino JS. Segregation in the Golgi complex precedes export of endolysosomal proteins in distinct transport carriers. J Cell Biol 2017; 216:4141-4151. [PMID: 28978644 PMCID: PMC5716290 DOI: 10.1083/jcb.201707172] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 08/18/2017] [Accepted: 08/24/2017] [Indexed: 01/26/2023] Open
Abstract
Biosynthetic sorting of newly synthesized transmembrane cargos to endosomes and lysosomes is thought to occur at the TGN through recognition of sorting signals in the cytosolic tails of the cargos by adaptor proteins, leading to cargo packaging into coated vesicles destined for the endolysosomal system. Here we present evidence for a different mechanism in which two sets of endolysosomal proteins undergo early segregation to distinct domains of the Golgi complex by virtue of the proteins' luminal and transmembrane domains. Proteins in one Golgi domain exit into predominantly vesicular carriers by interaction of sorting signals with adaptor proteins, but proteins in the other domain exit into predominantly tubular carriers shared with plasma membrane proteins, independently of signal-adaptor interactions. These findings demonstrate that sorting of endolysosomal proteins begins at an earlier stage and involves mechanisms that partly differ from those described by classical models.
Collapse
Affiliation(s)
- Yu Chen
- Cell Biology and Neurobiology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD
| | - David C Gershlick
- Cell Biology and Neurobiology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD
| | - Sang Yoon Park
- Cell Biology and Neurobiology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD
| | - Juan S Bonifacino
- Cell Biology and Neurobiology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD
| |
Collapse
|
35
|
Simonetti B, Danson CM, Heesom KJ, Cullen PJ. Sequence-dependent cargo recognition by SNX-BARs mediates retromer-independent transport of CI-MPR. J Cell Biol 2017; 216:3695-3712. [PMID: 28935633 PMCID: PMC5674890 DOI: 10.1083/jcb.201703015] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 07/19/2017] [Accepted: 08/11/2017] [Indexed: 12/11/2022] Open
Abstract
Endosomal recycling of transmembrane proteins requires sequence-dependent recognition of motifs present within their intracellular cytosolic domains. In this study, we have reexamined the role of retromer in the sequence-dependent endosome-to-trans-Golgi network (TGN) transport of the cation-independent mannose 6-phosphate receptor (CI-MPR). Although the knockdown or knockout of retromer does not perturb CI-MPR transport, the targeting of the retromer-linked sorting nexin (SNX)-Bin, Amphiphysin, and Rvs (BAR) proteins leads to a pronounced defect in CI-MPR endosome-to-TGN transport. The retromer-linked SNX-BAR proteins comprise heterodimeric combinations of SNX1 or SNX2 with SNX5 or SNX6 and serve to regulate the biogenesis of tubular endosomal sorting profiles. We establish that SNX5 and SNX6 associate with the CI-MPR through recognition of a specific WLM endosome-to-TGN sorting motif. From validating the CI-MPR dependency of SNX1/2-SNX5/6 tubular profile formation, we provide a mechanism for coupling sequence-dependent cargo recognition with the biogenesis of tubular profiles required for endosome-to-TGN transport. Therefore, the data presented in this study reappraise retromer's role in CI-MPR transport.
Collapse
Affiliation(s)
- Boris Simonetti
- School of Biochemistry, University of Bristol, Bristol, England, UK
| | - Chris M Danson
- School of Biochemistry, University of Bristol, Bristol, England, UK
| | - Kate J Heesom
- Proteomics Facility, School of Biochemistry, University of Bristol, Bristol, England, UK
| | - Peter J Cullen
- School of Biochemistry, University of Bristol, Bristol, England, UK
| |
Collapse
|
36
|
Lin YC, Lin CH, Yao HT, Kuo WW, Shen CY, Yeh YL, Ho TJ, Padma VV, Lin YC, Huang CY, Huang CY. Platycodon grandiflorum (PG) reverses angiotensin II-induced apoptosis by repressing IGF-IIR expression. J Ethnopharmacol 2017; 205:41-50. [PMID: 28473244 DOI: 10.1016/j.jep.2017.04.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 04/26/2017] [Accepted: 04/28/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Platycodon grandiflorum (PG) is a Chinese medical plant used for decades as a traditional prescription to eliminate phlegm, relieve cough, reduce inflammation and lower blood pressure. PG also has a significant effect on the cardiovascular systems. MATERIALS AND METHODS The aqueous extract of Platycodon grandiflorum (JACQ.) A. DC. root was screened for inhibiting Ang II-induced IGF-IIR activation and apoptosis pathway in H9c2 cardiomyocytes. The effects were also studied in spontaneously hypertensive rats (five groups, n=5) using low and high doses of PG for 50 days. The Ang II-induced IGF-IIR activation was analyzed by luciferase reporter, RT-PCR, western blot and surface IGF-IIR expression assay. Furthermore, the major active constituent of PG was carried out by high performance liquid chromatography-mass spectrometry (HPLC-MS). RESULTS Our results indicate that a crude extract of PG significantly suppresses the Ang II-induced IGF-IIR signaling pathway to prevent cardiomyocyte apoptosis. PG extract inhibits Ang II-mediated JNK activation and SIRT1 degradation to reduce IGF-IIR activity. Moreover, PG maintains SIRT1 stability to enhance HSF1-mediated IGF-IIR suppression, which prevents cardiomyocyte apoptosis. In animal models, the administration of PG markedly reduced this apoptotic pathway in the heart of SHRs. CONCLUSION Taken together, PG may be considered as an effective treatment for cardiac diseases in hypertensive patients.
Collapse
Affiliation(s)
- Yuan-Chuan Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chih-Hsueh Lin
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan; School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Hsien-Tsung Yao
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Chia-Yao Shen
- Department of Nursing, Mei Ho University, Pingguang Road, Pingtung, Taiwan
| | - Yu-Lan Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan; Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Tsung-Jung Ho
- Chinese Medicine Department, China Medical University Beigang Hospital, Taichung, Taiwan
| | - V Vijaya Padma
- Department of Biotechnology, Bharathiar University, Coimbatore 641046, India
| | - Yu-Chen Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Translation Research Core, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan; Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan; Department of Biological Science, Asia University, Taichung, Taiwan; Faculty of Applied Sciences, Ton Duc Thang University, Tan Phong Ward, District 7, 700000 Ho Chi Minh City, Vietnam.
| |
Collapse
|
37
|
Shawe-Taylor M, Kumar JD, Holden W, Dodd S, Varga A, Giger O, Varro A, Dockray GJ. Glucagon-like petide-2 acts on colon cancer myofibroblasts to stimulate proliferation, migration and invasion of both myofibroblasts and cancer cells via the IGF pathway. Peptides 2017; 91:49-57. [PMID: 28363795 DOI: 10.1016/j.peptides.2017.03.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 03/21/2017] [Accepted: 03/27/2017] [Indexed: 01/17/2023]
Abstract
Glucagon-like peptide (GLP)-2 stimulates intestinal epithelial proliferation by acting, in part, via IGF release from sub-epithelial myofibroblasts. The response of myofibroblasts to GLP-2 remains incompletely understood. We studied the action of GLP-2 on myofibroblasts from colon cancer and adjacent tissue, and the effects of conditioned medium from these cells on epithelial cell proliferation, migration and invasion. GLP-2 stimulated proliferation, migration and invasion of myofibroblasts and the proliferative and invasive responses of cancer-associated myofibroblasts were greater than those of myofibroblasts from adjacent tissue. The responses were inhibited by an IGF receptor inhibitor, AG1024. Conditioned medium from GLP-2 treated myofibroblasts increased proliferation, migration and invasion of SW480, HT29, LoVo epithelial cells and these responses were inhibited by AG1024; GLP-2 alone had no effect on these cells. In addition, when myofibroblasts and epithelial cells were co-cultured in Ibidi chambers there was mutual stimulation of migration in response to GLP-2. The latter increased both IGF-1 and IGF-2 transcript abundance in myofibroblasts. Moreover, a number of IGF binding proteins (IGFBP-4, -5, -7) were identified in myofibroblast medium; in the presence of GLP-2 there was increased abundance of the cleavage products of IGBBP-4 and IGFBP-5 suggesting activation of a degradation mechanism that might increase IGF bioavailability. The data suggest that GLP-2 stimulates cancer myofibroblast proliferation, migration and invasion; GLP-2 acts indirectly on epithelial cells partly via increased IGF expression in myofibroblasts and partly, perhaps, by increased bioavailability through degradation of IGFBPs.
Collapse
Affiliation(s)
- Marianne Shawe-Taylor
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - J Dinesh Kumar
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Whitney Holden
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Steven Dodd
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Akos Varga
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Olivier Giger
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Andrea Varro
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Graham J Dockray
- Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK.
| |
Collapse
|
38
|
Wang Y, MacDonald RG, Thinakaran G, Kar S. Insulin-Like Growth Factor-II/Cation-Independent Mannose 6-Phosphate Receptor in Neurodegenerative Diseases. Mol Neurobiol 2017; 54:2636-2658. [PMID: 26993302 PMCID: PMC5901910 DOI: 10.1007/s12035-016-9849-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 03/09/2016] [Indexed: 12/11/2022]
Abstract
The insulin-like growth factor II/mannose 6-phosphate (IGF-II/M6P) receptor is a multifunctional single transmembrane glycoprotein. Recent studies have advanced our understanding of the structure, ligand-binding properties, and trafficking of the IGF-II/M6P receptor. This receptor has been implicated in a variety of important cellular processes including growth and development, clearance of IGF-II, proteolytic activation of enzymes, and growth factor precursors, in addition to its well-known role in the delivery of lysosomal enzymes. The IGF-II/M6P receptor, distributed widely in the central nervous system, has additional roles in mediating neurotransmitter release and memory enhancement/consolidation, possibly through activating IGF-II-related intracellular signaling pathways. Recent studies suggest that overexpression of the IGF-II/M6P receptor may have an important role in regulating the levels of transcripts and proteins involved in the development of Alzheimer's disease (AD)-the prevalent cause of dementia affecting the elderly population in our society. It is reported that IGF-II/M6P receptor overexpression can increase the levels/processing of amyloid precursor protein leading to the generation of β-amyloid peptide, which is associated with degeneration of neurons and subsequent development of AD pathology. Given the significance of the receptor in mediating the transport and functioning of the lysosomal enzymes, it is being considered for therapeutic delivery of enzymes to the lysosomes to treat lysosomal storage disorders. Notwithstanding these results, additional studies are required to validate and fully characterize the function of the IGF-II/M6P receptor in the normal brain and its involvement in various neurodegenerative disorders including AD. It is also critical to understand the interaction between the IGF-II/M6P receptor and lysosomal enzymes in neurodegenerative processes, which may shed some light on developing approaches to detect and prevent neurodegeneration through the dysfunction of the receptor and the endosomal-lysosomal system.
Collapse
Affiliation(s)
- Y Wang
- Department of Psychiatry, University of Alberta, Edmonton, AB, T6G 2M8, Canada
- Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, AB, Canada
| | - R G MacDonald
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - G Thinakaran
- Departments of Neurobiology, Neurology, and Pathology, The University of Chicago, Chicago, IL, 60637, USA
| | - S Kar
- Department of Psychiatry, University of Alberta, Edmonton, AB, T6G 2M8, Canada.
- Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, AB, Canada.
- Department of Medicine (Neurology), University of Alberta, Edmonton, AB, T6G 2M8, Canada.
| |
Collapse
|
39
|
Pickard A, Durzynska J, McCance DJ, Barton ER. The IGF axis in HPV associated cancers. Mutat Res Rev Mutat Res 2017; 772:67-77. [PMID: 28528691 DOI: 10.1016/j.mrrev.2017.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 01/30/2017] [Accepted: 01/30/2017] [Indexed: 02/07/2023]
Abstract
Human papillomaviruses (HPV) infect and replicate in stratified epithelium at cutaneous and mucosal surfaces. The proliferation and maintenance of keratinocytes, the cells which make up this epithelium, are controlled by a number of growth factor receptors such as the keratinocyte growth factor receptor (KGFR, also called fibroblast growth factor receptor 2b (FGFR2b)), the epithelial growth factor receptor (EGFR) and the insulin-like growth factor receptors 1 and 2 (IGF1R and IGF2R). In this review, we will delineate the mutation, gene transcription, translation and processing of the IGF axis within HPV associated cancers. The IGFs are key for developmental and postnatal growth of almost all tissues; we explore whether this crucial axis has been hijacked by HPV.
Collapse
MESH Headings
- Cell Proliferation
- ErbB Receptors/genetics
- ErbB Receptors/metabolism
- Gene Expression Regulation, Neoplastic
- Humans
- Keratinocytes/cytology
- Keratinocytes/virology
- Neoplasms/genetics
- Neoplasms/virology
- Papillomaviridae/pathogenicity
- Receptor, Fibroblast Growth Factor, Type 2/genetics
- Receptor, Fibroblast Growth Factor, Type 2/metabolism
- Receptor, IGF Type 1
- Receptor, IGF Type 2/genetics
- Receptor, IGF Type 2/metabolism
- Receptors, Somatomedin/genetics
- Receptors, Somatomedin/metabolism
- Somatomedins/genetics
- Somatomedins/metabolism
Collapse
Affiliation(s)
- Adam Pickard
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, BT9 7AE, UK; Wellcome Centre for Cell Matrix Research, University of Manchester, M13 9PL, UK.
| | - Julia Durzynska
- Department of Molecular Virology, Institute of Experimental Biology, A. Mickiewicz University, ul. Umultowska 89, 61-614, Poznań, Poland; Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, FL, USA
| | - Dennis J McCance
- Department of Pathology, University of New Mexico, Albuquerque, NM, USA
| | - Elisabeth R Barton
- Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, FL, USA
| |
Collapse
|
40
|
Verbeek RE, Siersema PD, Vleggaar FP, Ten Kate FJ, Posthuma G, Souza RF, de Haan J, van Baal JWPM. Toll-like Receptor 2 Signalling and the Lysosomal Machinery in Barrett's Esophagus. J Gastrointestin Liver Dis 2016; 25:273-82. [PMID: 27689189 DOI: 10.15403/jgld.2014.1121.253.rc2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Inflammation plays an important role in the development of esophageal adenocarcinoma and its metaplastic precursor lesion, Barrett's esophagus. Toll-like receptor (TLR) 2 signalling and lysosomal function have been linked to inflammation-associated carcinogenesis. We examined the expression of TLR2 in the esophagus and the effect of long-term TLR2 activation on morphological changes and expression of factors involved in lysosomal function in a Barrett's esophagus epithelium cell line. METHODS TLR2 expression in normal squamous esophagus, reflux esophagitis, Barrett's esophagus and esophageal adenocarcinoma biopsies was assessed with Q-RT-PCR, in situ hybridization and immunohistochemistry. Barrett's esophagus epithelium cells (BAR-T) were incubated with acid and bile salts in the presence or absence of the TLR2 agonist Pam3CSK4 for a period up to 4 weeks. Morphological changes were assessed with electron microscopy, while Q-RT-PCR was used to determine the expression of lysosomal enzymes (Cathepsin B and C) and factors involved in endocytosis (LAMP-1 and M6PR) and autophagy (LC3 and Rab7). RESULTS TLR2 was expressed in normal squamous esophagus, reflux esophagitis, Barrett's esophagus but was most prominent in esophageal adenocarcinoma. Long-term TLR2 activation in acid and bile salts exposed BAR-T cells resulted in more and larger lysosomes, more mitochondria and increased expression of LAMP-1, M6PR, Cathepsin B and C when compared to BAR-T cells incubated with acid and bile salts but no TLR2 agonist. Factors associated with autophagy (LC3 and Rab7) expression remained largely unchanged. CONCLUSION Activation of TLR2 in acid and bile salts exposed Barrett epithelium cells resulted in an increased number of mitochondria and lysosomes and increased expression of lysosomal enzymes and factors involved in endocytosis.
Collapse
Affiliation(s)
- Romy E Verbeek
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Peter D Siersema
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht; Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Frank P Vleggaar
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Fiebo J Ten Kate
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - George Posthuma
- Department of Cell Biology, Center for Electron Microscopy, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rhonda F Souza
- Department of Medicine, University of Texas Southwestern Medical Center, VA North Texas Health Care System, Dallas, Texas, USA
| | - Judith de Haan
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jantine W P M van Baal
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
| |
Collapse
|
41
|
Shi Q, Haenen GR, Maas L, Arlt VM, Spina D, Vasquez YR, Moonen E, Veith C, Van Schooten FJ, Godschalk RWL. Inflammation-associated extracellular β-glucuronidase alters cellular responses to the chemical carcinogen benzo[a]pyrene. Arch Toxicol 2016; 90:2261-2273. [PMID: 26438400 PMCID: PMC4982897 DOI: 10.1007/s00204-015-1593-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 08/31/2015] [Indexed: 11/24/2022]
Abstract
Neutrophils infiltrate tissues during inflammation, and when activated, they release β-glucuronidase. Since inflammation is associated with carcinogenesis, we investigated how extracellular β-glucuronidase changed the in vitro cellular response to the chemical carcinogen benzo(a)pyrene (B[a]P). For this we exposed human liver (HepG2) and lung (A549) cells to B[a]P in the presence or absence of β-glucuronidase. β-Glucuronidase reduced B[a]P-induced expression of CYP1A1 and CYP1B1 at 6 h after exposure, which did not depend on β-glucuronidase activity, because the inhibitor D-saccharic acid 1,4-lactone monohydrate did not antagonize the effect of β-glucuronidase. On the other hand, the inhibitory effect of β-glucuronidase on CYP expression was dependent on signalling via the insulin-like growth factor receptor (IGF2R, a known receptor for β-glucuronidase), because co-incubation with the IGF2R inhibitor mannose-6-phosphate completely abolished the effect of β-glucuronidase. Extracellular β-glucuronidase also reduced the formation of several B[a]P metabolites and B[a]P-DNA adducts. Interestingly, at 24 h of exposure, β-glucuronidase significantly enhanced CYP expression, probably because β-glucuronidase de-glucuronidated B[a]P metabolites, which continued to trigger the aryl hydrocarbon receptor (Ah receptor) and induced expression of CYP1A1 (in both cell lines) and CYP1B1 (in A549 only). Consequently, significantly higher concentrations of B[a]P metabolites and DNA adducts were found in β-glucuronidase-treated cells at 24 h. DNA adduct levels peaked at 48 h in cells that were exposed to B[a]P and treated with β-glucuronidase. Overall, these data show that β-glucuronidase alters the cellular response to B[a]P and ultimately enhances B[a]P-induced DNA adduct levels.
Collapse
Affiliation(s)
- Q. Shi
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - G. R. Haenen
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - L. Maas
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - V. M. Arlt
- Analytical and Environmental Sciences Division, MRC-PHE Centre for Environmental and Health, King’s College London, 150 Stamford Street, London, SE1 9NH UK
- NIHR Health Protection Research Unit in Health Impact of Environmental Hazards at King’s College London in Partnership with Public Health England, 150 Stamford Street, London, SE1 9NH UK
| | - D. Spina
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King’s College London, 150 Stamford Street, London, SE1 9NH UK
| | - Y. Riffo Vasquez
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King’s College London, 150 Stamford Street, London, SE1 9NH UK
| | - E. Moonen
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - C. Veith
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - F. J. Van Schooten
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - R. W. L. Godschalk
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, PO Box 616, 6200 MD Maastricht, The Netherlands
| |
Collapse
|
42
|
Matrone C, Dzamko N, Madsen P, Nyegaard M, Pohlmann R, Søndergaard RV, Lassen LB, Andresen TL, Halliday GM, Jensen PH, Nielsen MS. Mannose 6-Phosphate Receptor Is Reduced in -Synuclein Overexpressing Models of Parkinsons Disease. PLoS One 2016; 11:e0160501. [PMID: 27509067 PMCID: PMC4979956 DOI: 10.1371/journal.pone.0160501] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 07/20/2016] [Indexed: 12/03/2022] Open
Abstract
Increasing evidence points to defects in autophagy as a common denominator in most neurodegenerative conditions. Progressive functional decline in the autophagy-lysosomal pathway (ALP) occurs with age, and the consequent impairment in protein processing capacity has been associated with a higher risk of neurodegeneration. Defects in cathepsin D (CD) processing and α-synuclein degradation causing its accumulation in lysosomes are particularly relevant for the development of Parkinson's disease (PD). However, the mechanism by which alterations in CD maturation and α-synuclein degradation leads to autophagy defects in PD neurons is still uncertain. Here we demonstrate that MPR300 shuttling between endosomes and the trans Golgi network is altered in α-synuclein overexpressing neurons. Consequently, CD is not correctly trafficked to lysosomes and cannot be processed to generate its mature active form, leading to a reduced CD-mediated α-synuclein degradation and α-synuclein accumulation in neurons. MPR300 is downregulated in brain from α-synuclein overexpressing animal models and in PD patients with early diagnosis. These data indicate MPR300 as crucial player in the autophagy-lysosomal dysfunctions reported in PD and pinpoint MRP300 as a potential biomarker for PD.
Collapse
Affiliation(s)
- Carmela Matrone
- Department of Biomedicine, Faculty of Health, Aarhus University, 8000 Aarhus C, Denmark
- * E-mail: ;
| | - Nicolas Dzamko
- Neuroscience Research Australia, Sydney, NSW 2031, and School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Peder Madsen
- Department of Biomedicine, Faculty of Health, Aarhus University, 8000 Aarhus C, Denmark
- Research Initiative on Blood Brain and Drug Delivery, The Lundbeck Foundation, 8000 Aarhus C, Denmark
| | - Mette Nyegaard
- Department of Biomedicine, Faculty of Health, Aarhus University, 8000 Aarhus C, Denmark
| | - Regina Pohlmann
- Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, 48149 Münster, Germany
| | - Rikke V. Søndergaard
- Research Initiative on Blood Brain and Drug Delivery, The Lundbeck Foundation, 8000 Aarhus C, Denmark
- Department of Micro- and Nanotechnology, Technical University of Denmark (DTU) Nanotech, DTU, 2800 Lyngby, Denmark
| | - Louise B. Lassen
- Department of Biomedicine, Faculty of Health, Aarhus University, 8000 Aarhus C, Denmark
| | - Thomas L. Andresen
- Research Initiative on Blood Brain and Drug Delivery, The Lundbeck Foundation, 8000 Aarhus C, Denmark
- Department of Micro- and Nanotechnology, Technical University of Denmark (DTU) Nanotech, DTU, 2800 Lyngby, Denmark
| | - Glenda M. Halliday
- Neuroscience Research Australia, Sydney, NSW 2031, and School of Medical Sciences, Faculty of Medicine, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Poul Henning Jensen
- Department of Biomedicine, Faculty of Health, Aarhus University, 8000 Aarhus C, Denmark
| | - Morten S. Nielsen
- Department of Biomedicine, Faculty of Health, Aarhus University, 8000 Aarhus C, Denmark
- Research Initiative on Blood Brain and Drug Delivery, The Lundbeck Foundation, 8000 Aarhus C, Denmark
- * E-mail: ;
| |
Collapse
|
43
|
Ting WJ, Yang JJ, Kuo CH, Xiao ZJ, Lu XZ, Yeh YL, Day CH, Wen SY, Viswanadha VP, Jiang CH, Kuo WW, Huang CY. Environmental tobacco smoke increases autophagic effects but decreases longevity associated with Sirt-1 protein expression in young C57BL mice hearts. Oncotarget 2016; 7:39017-39025. [PMID: 27167200 PMCID: PMC5129910 DOI: 10.18632/oncotarget.9176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 04/16/2016] [Indexed: 11/25/2022] Open
Abstract
Recently, a survey by the Centers for Disease Control and Prevention (CDC) reported that nearly 90% of U.S. adult smokers began smoking at the age of 18. This demonstrates that the exposure to environmental tobacco smoke (ETS) of youngsters today is changing from passive smoking to active smoking (direct inhalation of tobacco). In the current study, an investigation of ETS exposure in young C57BL mice was conducted. After 6 weeks of ETS exposure, the Sirt-1 protein level was decreased and cardiac autophagy was increased in C57BL mice. Furthermore, the IGF2R cardiac hypertrophy signaling pathway was also triggered, although cardiac apoptosis and hypertrophy were not induced. Youngsters' desire to look more mature is one of the psychological factors that impacts smoking amongst young people. Our results suggest that though ETS exposure might cause cardiac autophagy amongst youngsters, the loss of the longevity Sirt-1 protein and the increase in IGF2R cardiac hypertrophy signaling could still promote heart diseases that are age-specific.
Collapse
Affiliation(s)
- Wei-Jen Ting
- The Sixth Affiliated Hospital of Guangzhou Medical University, Guangdong, China
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Jaw-Ji Yang
- Institute of Medicine, School of Dentistry, Chung-Shan Medical University, Taichung, Taiwan
| | - Chia-Hua Kuo
- Department of Sports Sciences, University of Taipei, Taipei, Taiwan
| | - Zi-Jun Xiao
- National Taichung First Senior High School, Taichung, Taiwan
| | - Xin-Ze Lu
- National Taichung First Senior High School, Taichung, Taiwan
| | - Yu-Lan Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan
- Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | | | - Su-Ying Wen
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
- Department of Dermatology, Taipei City Hospital, Renai Branch, Taipei, Taiwan
| | | | - Chong-He Jiang
- The Sixth Affiliated Hospital of Guangzhou Medical University, Guangdong, China
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
| |
Collapse
|
44
|
Yamamoto T, Oida S, Inage T. Gene Expression and Localization of Insulin-like Growth Factors and Their Receptors throughout Amelogenesis in Rat Incisors. J Histochem Cytochem 2016; 54:243-52. [PMID: 16260589 DOI: 10.1369/jhc.5a6821.2005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Insulin-like growth factors (IGFs) are expressed in many tissues and control cell differentiation, proliferation, and apoptosis. In teeth, the temporo-spatial pattern of expression IGFs and their receptors has not been fully characterized. The purpose of this study was to obtain a comprehensive profile of their expression throughout the life cycle of ameloblasts, using the continuously erupting rat incisor model. Upper incisors of young male rats were fixed by perfusion, decalcified, and embedded in paraffin. Sections were processed for in situ hybridization and immunohistochemistry. mRNA and protein expression profiles IGF-I, IGF-II, IGF-IR, and IGF-IIR mRNA were essentially identical. At the apical loop of the incisor, very strong signals were seen in the outer enamel epithelium while the inner enamel epithelium showed a moderate reaction. In the region of ameloblasts facing pulp, inner enamel epithelium cells were still moderately reactive while signals over the outer enamel epithelium were slightly reduced. In the region of ameloblasts facing dentin and the initial portion of the secretory zone, signals in ameloblasts were weak while those over the outer enamel epithelium were strong. In the region of postsecretory transition, signals in both ameloblasts and papillary layer cells gradually increased. In maturation proper, signals in ameloblasts appeared as alternating bands of strong and weak reactivities, which corresponded to the regions of ruffle-ended and smooth-ended ameloblasts, respectively. Papillary layer cells also showed alternations in signal intensity that matched those in ameloblasts. These results suggest that the IGF family may act as an autocrine/paracrine system that influences not only cell differentiation but also the physiological activity of ameloblasts.
Collapse
Affiliation(s)
- Tatsuya Yamamoto
- Department of Anatomy, School of Dentistry, Nihon University, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo, Japan.
| | | | | |
Collapse
|
45
|
Frago S, Nicholls RD, Strickland M, Hughes J, Williams C, Garner L, Surakhy M, Maclean R, Rezgui D, Prince SN, Zaccheo OJ, Ebner D, Sanegre S, Yu S, Buffa FM, Crump MP, Hassan AB. Functional evolution of IGF2:IGF2R domain 11 binding generates novel structural interactions and a specific IGF2 antagonist. Proc Natl Acad Sci U S A 2016; 113:E2766-75. [PMID: 27140600 PMCID: PMC4878476 DOI: 10.1073/pnas.1513023113] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Among the 15 extracellular domains of the mannose 6-phosphate/insulin-like growth factor-2 receptor (M6P/IGF2R), domain 11 has evolved a binding site for IGF2 to negatively regulate ligand bioavailability and mammalian growth. Despite the highly evolved structural loops of the IGF2:domain 11 binding site, affinity-enhancing AB loop mutations suggest that binding is modifiable. Here we examine the extent to which IGF2:domain 11 affinity, and its specificity over IGF1, can be enhanced, and we examine the structural basis of the mechanistic and functional consequences. Domain 11 binding loop mutants were selected by yeast surface display combined with high-resolution structure-based predictions, and validated by surface plasmon resonance. We discovered previously unidentified mutations in the ligand-interacting surface binding loops (AB, CD, FG, and HI). Five combined mutations increased rigidity of the AB loop, as confirmed by NMR. When added to three independently identified CD and FG loop mutations that reduced the koff value by twofold, these mutations resulted in an overall selective 100-fold improvement in affinity. The structural basis of the evolved affinity was improved shape complementarity established by interloop (AB-CD) and intraloop (FG-FG) side chain interactions. The high affinity of the combinatorial domain 11 Fc fusion proteins functioned as ligand-soluble antagonists or traps that depleted pathological IGF2 isoforms from serum and abrogated IGF2-dependent signaling in vivo. An evolved and reengineered high-specificity M6P/IGF2R domain 11 binding site for IGF2 may improve therapeutic targeting of the frequent IGF2 gain of function observed in human cancer.
Collapse
Affiliation(s)
- Susana Frago
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Ryan D Nicholls
- Department of Organic and Biological Chemistry, School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Madeleine Strickland
- Department of Organic and Biological Chemistry, School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Jennifer Hughes
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Christopher Williams
- Department of Organic and Biological Chemistry, School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Lee Garner
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Mirvat Surakhy
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Rory Maclean
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Dellel Rezgui
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Stuart N Prince
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Oliver J Zaccheo
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Daniel Ebner
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, United Kingdom
| | - Sabina Sanegre
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - Sheng Yu
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Francesca M Buffa
- Department of Oncology, University of Oxford, Oxford OX3 7DQ, United Kingdom
| | - Matthew P Crump
- Department of Organic and Biological Chemistry, School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom;
| | - Andrew Bassim Hassan
- Tumour Growth Control Group, Oxford Molecular Pathology Institute, Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom;
| |
Collapse
|
46
|
Meng XL, Day TS, McNeill N, Ashcraft P, Frischmuth T, Cheng SH, Liu ZP, Shen JS, Schiffmann R. Molecular basis for globotriaosylceramide regulation and enzyme uptake in immortalized aortic endothelial cells from Fabry mice. J Inherit Metab Dis 2016; 39:447-455. [PMID: 26960552 DOI: 10.1007/s10545-016-9920-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Revised: 01/30/2016] [Accepted: 02/05/2016] [Indexed: 11/28/2022]
Abstract
Fabry disease is caused by deficient activity of α-galactosidase A and subsequent intracellular accumulation of glycosphingolipids, mainly globotriaosylceramide (Gb3). Vascular endothelial cells may play important roles in disease pathogenesis, and are one of the main target cell types in therapeutic interventions. In this study, we generated immortalized aortic endothelial cell lines from a mouse model of Fabry disease. These cells retained endothelial cell-specific markers and functions. Gb3 expression level in one of these clones (referred to as FMEC2) was highly susceptible to culture media, and appeared to be regulated by glucosylceramide synthase. Results also showed that Gb3 could be upregulated by hydrocortisone. FMEC2 express the mannose 6-phosphate receptor and sortilin but not the mannose receptor. Uptake studies suggested that sortilin plays a role in the binding and internalization of mammalian cell-produced α-galactosidase A. Moss-aGal (a plant-made enzyme) was endocytosed by FMEC2 via a receptor other than the aforementioned receptors. In conclusion, this study suggests that glucosylceramide synthase and hydrocortisone may play important roles in modulating Gb3 levels in Fabry mouse aortic endothelial cells, and that endocytosis of recombinant α-galactosidase A involves a combination of multiple receptors depending on the properties of the enzyme.
Collapse
Affiliation(s)
- Xing-Li Meng
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX, 75226, USA
| | - Taniqua S Day
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX, 75226, USA
| | - Nathan McNeill
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX, 75226, USA
| | - Paula Ashcraft
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX, 75226, USA
| | | | - Seng H Cheng
- Sanofi Genzyme, 49 New York Avenue, Framingham, MA, 01701, USA
| | - Zhi-Ping Liu
- Department of Internal Medicine, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390, USA
| | - Jin-Song Shen
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX, 75226, USA.
| | - Raphael Schiffmann
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX, 75226, USA
| |
Collapse
|
47
|
Shen JS, Busch A, Day TS, Meng XL, Yu CI, Dabrowska-Schlepp P, Fode B, Niederkrüger H, Forni S, Chen S, Schiffmann R, Frischmuth T, Schaaf A. Mannose receptor-mediated delivery of moss-made α-galactosidase A efficiently corrects enzyme deficiency in Fabry mice. J Inherit Metab Dis 2016; 39:293-303. [PMID: 26310963 PMCID: PMC4754329 DOI: 10.1007/s10545-015-9886-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 07/13/2015] [Accepted: 07/29/2015] [Indexed: 01/02/2023]
Abstract
Enzyme replacement therapy (ERT) is an effective treatment for several lysosomal storage disorders (LSDs). Intravenously infused enzymes are taken up by tissues through either the mannose 6-phosphate receptor (M6PR) or the mannose receptor (MR). It is generally believed that M6PR-mediated endocytosis is a key mechanism for ERT in treating LSDs that affect the non-macrophage cells of visceral organs. However, the therapeutic efficacy of MR-mediated delivery of mannose-terminated enzymes in these diseases has not been fully evaluated. We tested the effectiveness of a non-phosphorylated α-galactosidase A produced from moss (referred to as moss-aGal) in vitro and in a mouse model of Fabry disease. Endocytosis of moss-aGal was MR-dependent. Compared to agalsidase alfa, a phosphorylated form of α-galactosidase A, moss-aGal was more preferentially targeted to the kidney. Cellular localization of moss-aGal and agalsidase alfa in the heart and kidney was essentially identical. A single injection of moss-aGal led to clearance of accumulated substrate in the heart and kidney to an extent comparable to that achieved by agalsidase alfa. This study suggested that mannose-terminated enzymes may be sufficiently effective for some LSDs in which non-macrophage cells are affected, and that M6P residues may not always be a prerequisite for ERT as previously considered.
Collapse
Affiliation(s)
- Jin-Song Shen
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX, 75226, USA.
| | | | - Taniqua S Day
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX, 75226, USA
| | - Xing-Li Meng
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX, 75226, USA
| | - Chun I Yu
- Baylor Institute for Immunology Research, Dallas, TX, 75204, USA
| | | | | | | | - Sabrina Forni
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX, 75226, USA
| | - Shuyuan Chen
- Baylor Research Institute, Dallas, TX, 75226, USA
| | - Raphael Schiffmann
- Institute of Metabolic Disease, Baylor Research Institute, 3812 Elm Street, Dallas, TX, 75226, USA
| | | | | |
Collapse
|
48
|
Robajac D, Masnikosa R, Miković Ž, Nedić O. Gestation-associated changes in the glycosylation of placental insulin and insulin-like growth factor receptors. Placenta 2016; 39:70-6. [PMID: 26992677 DOI: 10.1016/j.placenta.2016.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 12/01/2015] [Accepted: 01/06/2016] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Insulin receptor (IR) and type 1 and type 2 insulin-like growth factor receptors (IGF1R and IGF2R) play important roles in regulation of placental and foetal growth. All three receptors are abundantly glycosylated. N-glycosylation significantly affects protein conformation and may alter its function. We have recently found that the N-glycome of placental membrane proteins alters during gestation. The aim of the study presented herein was to investigate whether there were gestation-related changes in N-glycan profiles of placental IR and IGFRs. METHODS Placentas from healthy women at first (FTP) and third trimester (TTP) of pregnancy were collected, membrane proteins isolated, solubilised and used as the source of IR and IGFRs. Reactivity of glycoforms of IR and IGFRs with lectins was monitored by measuring radioactivity of (125)I-ligands-receptors complexes. RESULTS Significant differences in the binding pattern of all three receptors to the lectins were observed between FTP and TTP, which suggest gestational changes in N-glycans bound to receptors. These changes include decrease in total fucosylated, core-fucosylated biantennary N-glycan (NA2F) and α2,6-sialo-N-glycans (for IR); decrease in total fucosylated and α2,6-sialo-N-glycans and an increase in NA2F N-glycans (for IGF1R) and an increase in the total fucosylation and NA2F N-glycans (for IGF2R). DISCUSSION The gestational alterations in N-glycans attached to IR and IGFRs may represent a mechanism by which these receptors acquire new/additional roles as gestation progresses.
Collapse
Affiliation(s)
- Dragana Robajac
- Institute for the Application of Nuclear Energy - INEP, University of Belgrade, Belgrade, Serbia
| | - Romana Masnikosa
- Institute for the Application of Nuclear Energy - INEP, University of Belgrade, Belgrade, Serbia.
| | - Željko Miković
- Clinic of Gynaecology and Obstetrics "Narodni Front", University of Belgrade, Belgrade, Serbia
| | - Olgica Nedić
- Institute for the Application of Nuclear Energy - INEP, University of Belgrade, Belgrade, Serbia
| |
Collapse
|
49
|
Wang Y, Lv Y, Gao S, Zhang Y, Sun J, Gong C, Chen X, Li G. MicroRNA Profiles in Spontaneous Decidualized Menstrual Endometrium and Early Pregnancy Decidua with Successfully Implanted Embryos. PLoS One 2016; 11:e0143116. [PMID: 26735129 PMCID: PMC4703305 DOI: 10.1371/journal.pone.0143116] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 10/31/2015] [Indexed: 01/16/2023] Open
Abstract
To comparatively analyze the human microRNA (miRNA) profiles between spontaneous decidualized menstrual endometrium and early pregnancy decidua by an in-depth sequencing of miRNAs. The specific miRNAs expressed at conception might be involved in pregnancy establishment and expression of let-7f-5p and let-7g-5p was experimentally up-regulated or inhibited to assess the effect on the expression of IGF2BP-1 and IGF2R in vitro, respectively. Samples of endometria and deciduas were obtained from 25 women who suffered from tubal or male factor subfertility and from 35 early pregnant women who underwent pregnancy termination at 6–8 weeks gestation were irrespectively collected and comparatively analyzed by miRNA sequencing and differential expression of known and novel miRNAs was analyzed using bioinformatics. The 2042 miRNA expression was analyzed in the study and the differential expression of six miRNAs was validated by qRT-PCR. The expression of four miRNAs in decidua samples was down-regulated (miR-34c, miR-92a, miR-181a-5p, and miR-191), whereas the expression of miR-10a-5p and let-7f-5p was significantly up-regulated. The expression of IGF2BP-1 and IGF2R declined and increased with overexpression and inhibition of let-7f-5p and let-7g-5p, respectively. Changes in the expression of particular miRNAs might play a role in the physiology of decidualization following successful embryo implantation, ultimately resulting in continuous decidualization.
Collapse
Affiliation(s)
- Yu Wang
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Hohhot, China
- Department of Gynecology and Obstetrics, Inner Mongolia Medical University affiliated hospital, Hohhot, China
| | - Yang Lv
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Hohhot, China
| | - Shujun Gao
- College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Yuanyuan Zhang
- College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Jiajia Sun
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Hohhot, China
| | - Chunling Gong
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Hohhot, China
| | - Xiujuan Chen
- Department of Gynecology and Obstetrics, Inner Mongolia Medical University affiliated hospital, Hohhot, China
- * E-mail: (XJC); (GPL)
| | - Guangpeng Li
- The Key Laboratory of National Education Ministry for Mammalian Reproductive Biology and Biotechnology, Inner Mongolia University, Hohhot, China
- * E-mail: (XJC); (GPL)
| |
Collapse
|
50
|
Cauvin C, Rosendale M, Gupta-Rossi N, Rocancourt M, Larraufie P, Salomon R, Perrais D, Echard A. Rab35 GTPase Triggers Switch-like Recruitment of the Lowe Syndrome Lipid Phosphatase OCRL on Newborn Endosomes. Curr Biol 2015; 26:120-8. [PMID: 26725203 DOI: 10.1016/j.cub.2015.11.040] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 10/23/2015] [Accepted: 11/11/2015] [Indexed: 12/17/2022]
Abstract
Phosphoinositide (PtdIns) homeostasis requires a tight spatial and temporal regulation during the endocytic process [1]. Indeed, PtdIns(4,5)P2 plays a crucial role in endocytosis by controlling clathrin-coated pit formation, whereas its conversion into PtdIns4P right after scission of clathrin-coated vesicles (CCVs) is essential for successful uncoating and cargo sorting [1-6]. In non-neuronal cells, endosomal PtdIns(4,5)P2 hydrolysis critically relies on the lipid phosphatase OCRL [7-9], the inactivation of which causes the Oculo-Cerebro-Renal syndrome of Lowe [10, 11]. To understand the coupling between PtdIns(4,5)P2 hydrolysis and endosome formation, a key issue is thus to unravel the mechanism by which OCRL is recruited on CCVs precisely after their scission from the plasma membrane. Here we found that the Rab35 GTPase, which plays a fundamental but poorly understood role in endosomal trafficking after cargo internalization [12-21], directly recruits the OCRL phosphatase immediately after scission of the CCVs. Consistent with Rab35 and OCRL acting together, depletion of either Rab35 or OCRL leads to retention of internalized receptors such as the endogenous cation-independent mannose-6-phosphate receptor (CI-MPR) in peripheral clathrin-positive endosomes that display abnormal association with PtdIns(4,5)P2- and actin-binding proteins. Remarkably, Rab35 loading on CCVs rapidly follows the recruitment of the AP2-binding Rab35 GEF/activator DENND1A (connecdenn 1) and the disappearance of the Rab35 GAP/inhibitor EPI64B. We propose that the precise spatial and temporal activation of Rab35 acts as a major switch for OCRL recruitment on newborn endosomes, post-scission PtdIns(4,5)P2 hydrolysis, and subsequent endosomal trafficking.
Collapse
Affiliation(s)
- Clothilde Cauvin
- Membrane Traffic and Cell Division Lab, Cell Biology and Infection Department, Institut Pasteur, 25-28 Rue du Dr. Roux, 75724 Paris Cedex 15, France; Centre National de la Recherche Scientifique UMR3691, 75015 Paris, France; Institut de Formation Doctorale, Sorbonne Universités and Université Pierre et Marie Curie, Université Paris 06, 75252 Paris, France
| | - Morgane Rosendale
- University of Bordeaux, 33000 Bordeaux, France; Centre National de la Recherche Scientifique, Interdisciplinary Institute for Neuroscience, UMR 5297, 33000 Bordeaux, France
| | - Neetu Gupta-Rossi
- Membrane Traffic and Cell Division Lab, Cell Biology and Infection Department, Institut Pasteur, 25-28 Rue du Dr. Roux, 75724 Paris Cedex 15, France; Centre National de la Recherche Scientifique UMR3691, 75015 Paris, France
| | - Murielle Rocancourt
- Membrane Traffic and Cell Division Lab, Cell Biology and Infection Department, Institut Pasteur, 25-28 Rue du Dr. Roux, 75724 Paris Cedex 15, France; Centre National de la Recherche Scientifique UMR3691, 75015 Paris, France
| | - Pierre Larraufie
- Membrane Traffic and Cell Division Lab, Cell Biology and Infection Department, Institut Pasteur, 25-28 Rue du Dr. Roux, 75724 Paris Cedex 15, France; Centre National de la Recherche Scientifique UMR3691, 75015 Paris, France
| | - Rémi Salomon
- Service de Néphrologie Pédiatrique, AP-HP Hôpital Necker, INSERM U983, 75015 Paris, France
| | - David Perrais
- University of Bordeaux, 33000 Bordeaux, France; Centre National de la Recherche Scientifique, Interdisciplinary Institute for Neuroscience, UMR 5297, 33000 Bordeaux, France.
| | - Arnaud Echard
- Membrane Traffic and Cell Division Lab, Cell Biology and Infection Department, Institut Pasteur, 25-28 Rue du Dr. Roux, 75724 Paris Cedex 15, France; Centre National de la Recherche Scientifique UMR3691, 75015 Paris, France.
| |
Collapse
|