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Qu S, Jia W, Nie Y, Shi W, Chen C, Zhao Z, Song W. AGR2: The Covert Driver and New Dawn of Hepatobiliary and Pancreatic Cancer Treatment. Biomolecules 2024; 14:743. [PMID: 39062458 PMCID: PMC11275012 DOI: 10.3390/biom14070743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/04/2024] [Accepted: 06/19/2024] [Indexed: 07/28/2024] Open
Abstract
The anterior gradient protein 2 (AGR2) plays a crucial role in facilitating the formation of protein disulfide bonds within the endoplasmic reticulum (ER). Research suggests that AGR2 can function as an oncogene, with its heightened expression linked to the advancement of hepatobiliary and pancreatic cancers through invasion and metastasis. Notably, AGR2 not only serves as a pro-oncogenic agent but also as a downstream targeting protein, indirectly fostering cancer progression. This comprehensive review delves into the established functions and expression patterns of AGR2, emphasizing its pivotal role in cancer progression, particularly in hepatobiliary and pancreatic malignancies. Furthermore, AGR2 emerges as a potential cancer prognostic marker and a promising target for immunotherapy, offering novel avenues for the treatment of hepatobiliary and pancreatic cancers and enhancing patient outcomes.
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Affiliation(s)
- Shen Qu
- Xi’an Medical University, Xi’an 710021, China; (S.Q.); (W.J.); (W.S.); (C.C.)
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China; (Y.N.); (Z.Z.)
| | - Weili Jia
- Xi’an Medical University, Xi’an 710021, China; (S.Q.); (W.J.); (W.S.); (C.C.)
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China; (Y.N.); (Z.Z.)
| | - Ye Nie
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China; (Y.N.); (Z.Z.)
| | - Wen Shi
- Xi’an Medical University, Xi’an 710021, China; (S.Q.); (W.J.); (W.S.); (C.C.)
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China; (Y.N.); (Z.Z.)
| | - Chao Chen
- Xi’an Medical University, Xi’an 710021, China; (S.Q.); (W.J.); (W.S.); (C.C.)
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China; (Y.N.); (Z.Z.)
| | - Zihao Zhao
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China; (Y.N.); (Z.Z.)
| | - Wenjie Song
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China; (Y.N.); (Z.Z.)
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2
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Białobrzeska W, Dziąbowska K, Lisowska M, Mohtar MA, Muller P, Vojtesek B, Krejcir R, O’Neill R, Hupp TR, Malinowska N, Bięga E, Bigus D, Cebula Z, Pala K, Czaczyk E, Żołędowska S, Nidzworski D. An Ultrasensitive Biosensor for Detection of Femtogram Levels of the Cancer Antigen AGR2 Using Monoclonal Antibody Modified Screen-Printed Gold Electrodes. BIOSENSORS 2021; 11:184. [PMID: 34200338 PMCID: PMC8230265 DOI: 10.3390/bios11060184] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/24/2021] [Accepted: 06/06/2021] [Indexed: 12/22/2022]
Abstract
The detection of cancer antigens is a major aim of cancer research in order to develop better patient management through early disease detection. Many cancers including prostate, lung, and ovarian secrete a protein disulfide isomerase protein named AGR2 that has been previously detected in urine and plasma using mass spectrometry. Here we determine whether a previously developed monoclonal antibody targeting AGR2 can be adapted from an indirect two-site ELISA format into a direct detector using solid-phase printed gold electrodes. The screen-printed gold electrode was surface functionalized with the anti-AGR2 specific monoclonal antibody. The interaction of the recombinant AGR2 protein and the anti-AGR2 monoclonal antibody functionalized electrode changed its electrochemical impedance spectra. Nyquist diagrams were obtained after incubation in an increasing concentration of purified AGR2 protein with a range of concentrations from 0.01 fg/mL to 10 fg/mL. In addition, detection of the AGR2 antigen can be achieved from cell lysates in medium or artificial buffer. These data highlight the utility of an AGR2-specific monoclonal antibody that can be functionalized onto a gold printed electrode for a one-step capture and quantitation of the target antigen. These platforms have the potential for supporting methodologies using more complex bodily fluids including plasma and urine for improved cancer diagnostics.
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Affiliation(s)
- Wioleta Białobrzeska
- Institute of Biotechnology and Molecular Medicine, 3 Trzy Lipy St., 80-172 Gdansk, Poland; (N.M.); (E.B.); (D.B.); (Z.C.); (S.Ż.); (D.N.)
| | | | - Małgorzata Lisowska
- International Centre for Cancer Vaccine Science, University of Gdansk, Kładki 24 St., 80-822 Gdańsk, Poland; (M.L.); (T.R.H.)
| | - M. Aiman Mohtar
- UKM Medical Centre, UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia;
| | - Petr Muller
- Research Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 65653 Brno, Czech Republic; (P.M.); (B.V.); (R.K.)
| | - Borivoj Vojtesek
- Research Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 65653 Brno, Czech Republic; (P.M.); (B.V.); (R.K.)
| | - Radovan Krejcir
- Research Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 65653 Brno, Czech Republic; (P.M.); (B.V.); (R.K.)
| | - Robert O’Neill
- Cambridge Oesophagogastric Centre, Cambridge University Hospitals NHS Foundation Trust, Cambridge CB2 0QQ, UK;
| | - Ted R. Hupp
- International Centre for Cancer Vaccine Science, University of Gdansk, Kładki 24 St., 80-822 Gdańsk, Poland; (M.L.); (T.R.H.)
- Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XR, UK
| | - Natalia Malinowska
- Institute of Biotechnology and Molecular Medicine, 3 Trzy Lipy St., 80-172 Gdansk, Poland; (N.M.); (E.B.); (D.B.); (Z.C.); (S.Ż.); (D.N.)
| | - Ewelina Bięga
- Institute of Biotechnology and Molecular Medicine, 3 Trzy Lipy St., 80-172 Gdansk, Poland; (N.M.); (E.B.); (D.B.); (Z.C.); (S.Ż.); (D.N.)
| | - Daniel Bigus
- Institute of Biotechnology and Molecular Medicine, 3 Trzy Lipy St., 80-172 Gdansk, Poland; (N.M.); (E.B.); (D.B.); (Z.C.); (S.Ż.); (D.N.)
| | - Zofia Cebula
- Institute of Biotechnology and Molecular Medicine, 3 Trzy Lipy St., 80-172 Gdansk, Poland; (N.M.); (E.B.); (D.B.); (Z.C.); (S.Ż.); (D.N.)
| | - Katarzyna Pala
- SensDx, 14b Postępu St., 02-676 Warszawa, Poland; (K.D.); (K.P.); (E.C.)
| | - Elżbieta Czaczyk
- SensDx, 14b Postępu St., 02-676 Warszawa, Poland; (K.D.); (K.P.); (E.C.)
| | - Sabina Żołędowska
- Institute of Biotechnology and Molecular Medicine, 3 Trzy Lipy St., 80-172 Gdansk, Poland; (N.M.); (E.B.); (D.B.); (Z.C.); (S.Ż.); (D.N.)
| | - Dawid Nidzworski
- Institute of Biotechnology and Molecular Medicine, 3 Trzy Lipy St., 80-172 Gdansk, Poland; (N.M.); (E.B.); (D.B.); (Z.C.); (S.Ż.); (D.N.)
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3
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AGR2-AGR3 hetero-oligomeric complexes: Identification and characterization. Bioelectrochemistry 2021; 140:107808. [PMID: 33848875 DOI: 10.1016/j.bioelechem.2021.107808] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/14/2021] [Accepted: 03/22/2021] [Indexed: 01/13/2023]
Abstract
In this paper we compare electrochemical behavior of two homolog proteins, namely anterior gradient 2 (AGR2) and anterior gradient 3 (AGR3), playing an important role in cancer cell biology. The slight variation in their protein structures has an impact on protein adsorption and orientation at charged surface and also enables AGR2 and AGR3 to form heterocomplexes. We confirm interaction between AGR2 and AGR3 (i) in vitro by immunochemical and constant current chronopotentiometric stripping (CPS) analysis and (ii) in vivo by bioluminescence resonance energy transfer (BRET) assay. Mutation of AGR2 in dimerization domain (E60A) prevents development of wild type AGR2 dimers and also negatively affects interaction with wild type AGR3 as shown by CPS analysis. Beside new information about AGR2 and AGR3 protein including their joint interaction, our work introduces possible applications of CPS in bioanalysis of protein complexes, including those relatively unstable, but important in the cancer research.
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Akincilar SC, Chan CHT, Ng QF, Fidan K, Tergaonkar V. Non-canonical roles of canonical telomere binding proteins in cancers. Cell Mol Life Sci 2021; 78:4235-4257. [PMID: 33599797 PMCID: PMC8164586 DOI: 10.1007/s00018-021-03783-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 12/28/2020] [Accepted: 01/29/2021] [Indexed: 02/06/2023]
Abstract
Reactivation of telomerase is a major hallmark observed in 90% of all cancers. Yet paradoxically, enhanced telomerase activity does not correlate with telomere length and cancers often possess short telomeres; suggestive of supplementary non-canonical roles that telomerase might play in the development of cancer. Moreover, studies have shown that aberrant expression of shelterin proteins coupled with their release from shortening telomeres can further promote cancer by mechanisms independent of their telomeric role. While targeting telomerase activity appears to be an attractive therapeutic option, this approach has failed in clinical trials due to undesirable cytotoxic effects on stem cells. To circumvent this concern, an alternative strategy could be to target the molecules involved in the non-canonical functions of telomeric proteins. In this review, we will focus on emerging evidence that has demonstrated the non-canonical roles of telomeric proteins and their impact on tumorigenesis. Furthermore, we aim to address current knowledge gaps in telomeric protein functions and propose future research approaches that can be undertaken to achieve this.
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Affiliation(s)
- Semih Can Akincilar
- Division of Cancer Genetics and Therapeutics, Laboratory of NFκB Signaling, Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Proteos, 61, Biopolis Drive, Singapore, 138673, Singapore
| | - Claire Hian Tzer Chan
- Division of Cancer Genetics and Therapeutics, Laboratory of NFκB Signaling, Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Proteos, 61, Biopolis Drive, Singapore, 138673, Singapore
| | - Qin Feng Ng
- Division of Cancer Genetics and Therapeutics, Laboratory of NFκB Signaling, Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Proteos, 61, Biopolis Drive, Singapore, 138673, Singapore
| | - Kerem Fidan
- Division of Cancer Genetics and Therapeutics, Laboratory of NFκB Signaling, Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Proteos, 61, Biopolis Drive, Singapore, 138673, Singapore
| | - Vinay Tergaonkar
- Division of Cancer Genetics and Therapeutics, Laboratory of NFκB Signaling, Institute of Molecular and Cell Biology (IMCB), A*STAR (Agency for Science, Technology and Research), Proteos, 61, Biopolis Drive, Singapore, 138673, Singapore.
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117593, Singapore.
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5
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Fessart D, de Barbeyrac C, Boutin I, Grenier T, Richard E, Begueret H, Bernard D, Chevet E, Robert J, Delom F. Extracellular AGR2 triggers lung tumour cell proliferation through repression of p21 CIP1. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1868:118920. [PMID: 33278424 DOI: 10.1016/j.bbamcr.2020.118920] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 10/12/2020] [Accepted: 11/05/2020] [Indexed: 01/05/2023]
Abstract
The human Anterior GRadient 2 (AGR2) protein is an Endoplasmic Reticulum (ER)-resident protein which belongs to the Protein-Disulfide Isomerase (PDI) superfamily and is involved to productive protein folding in the ER. As such AGR2, often found overexpressed in adenocarcinomas, contributes to tumour development by enhancing ER proteostasis. We previously demonstrated that AGR2 is secreted (extracellular AGR2 (eAGR2)) in the tumour microenvironment and plays extracellular roles independent of its ER functions. Herein, we show that eAGR2 triggers cell proliferation and characterize the underlying molecular mechanisms. We demonstrate that eAGR2 enhances tumour cell growth by repressing the tumour suppressor p21CIP1. Our findings shed light on a novel mechanism through which eAGR2 behaves as a growth factor in the tumour microenvironment, independently of its ER function, thus promoting tumour cell growth through repression of p21CIP1. Our results provide a rationale for targeting eAGR2/p21CIP1-based signalling as a potential therapeutic target to impede tumour growth.
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Affiliation(s)
- Delphine Fessart
- ARTiSt Group, Univ. Bordeaux, INSERM, Institut Bergonié, ACTION, U1218, F-33000 Bordeaux, France; INSERM U1242, "Chemistry, Oncogenesis Stress Signaling", Univ. Rennes, Rennes, France; Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France.
| | - Claire de Barbeyrac
- ARTiSt Group, Univ. Bordeaux, INSERM, Institut Bergonié, ACTION, U1218, F-33000 Bordeaux, France
| | - Ines Boutin
- ARTiSt Group, Univ. Bordeaux, INSERM, Institut Bergonié, ACTION, U1218, F-33000 Bordeaux, France
| | - Thomas Grenier
- ARTiSt Group, Univ. Bordeaux, INSERM, Institut Bergonié, ACTION, U1218, F-33000 Bordeaux, France
| | - Elodie Richard
- ARTiSt Group, Univ. Bordeaux, INSERM, Institut Bergonié, ACTION, U1218, F-33000 Bordeaux, France
| | - Hughes Begueret
- ARTiSt Group, Univ. Bordeaux, INSERM, Institut Bergonié, ACTION, U1218, F-33000 Bordeaux, France; Dept of Pathology, University Hospital of Bordeaux, Hopital Haut-Lévêque, Pessac, France
| | - David Bernard
- Inserm U1052, CNRS UMR 5286, Université de Lyon & Centre Léon Bérard, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Eric Chevet
- INSERM U1242, "Chemistry, Oncogenesis Stress Signaling", Univ. Rennes, Rennes, France; Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France
| | - Jacques Robert
- ARTiSt Group, Univ. Bordeaux, INSERM, Institut Bergonié, ACTION, U1218, F-33000 Bordeaux, France
| | - Frederic Delom
- ARTiSt Group, Univ. Bordeaux, INSERM, Institut Bergonié, ACTION, U1218, F-33000 Bordeaux, France.
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6
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Delom F, Mohtar MA, Hupp T, Fessart D. The anterior gradient-2 interactome. Am J Physiol Cell Physiol 2020; 318:C40-C47. [DOI: 10.1152/ajpcell.00532.2018] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The anterior gradient-2 (AGR2) is an endoplasmic reticulum (ER)-resident protein belonging to the protein disulfide isomerase family that mediates the formation of disulfide bonds and assists the protein quality control in the ER. In addition to its role in proteostasis, extracellular AGR2 is responsible for various cellular effects in many types of cancer, including cell proliferation, survival, and metastasis. Various OMICs approaches have been used to identify AGR2 binding partners and to investigate the functions of AGR2 in the ER and outside the cell. Emerging data showed that AGR2 exists not only as monomer, but it can also form homodimeric structure and thus interact with different partners, yielding different biological outcomes. In this review, we summarize the AGR2 “interactome” and discuss the pathological and physiological role of such AGR2 interactions.
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Affiliation(s)
- Frederic Delom
- University of Bordeaux, ACTION, Bordeaux, France
- Institut National de la Santé et de la Recherche Médicale, Bordeaux, France
- Institut Bergonié, Bordeaux, France
| | - M. Aiman Mohtar
- University Kebangsaan Malaysia, Medical Molecular Biology Institute (UMBI), The National University of Malaysia, Kuala Lumpur, Malaysia
| | - Ted Hupp
- University of Edinburgh, Institute of Genetics and Molecular Medicine, Edinburgh, Scotland, United Kingdom
- University of Gdansk, International Centre for Cancer Vaccine Science, Gdansk, Poland
| | - Delphine Fessart
- University of Bordeaux, ACTION, Bordeaux, France
- Institut National de la Santé et de la Recherche Médicale, Bordeaux, France
- Institut Bergonié, Bordeaux, France
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7
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Alsereihi R, Schulten HJ, Bakhashab S, Saini K, Al-Hejin AM, Hussein D. Leveraging the Role of the Metastatic Associated Protein Anterior Gradient Homologue 2 in Unfolded Protein Degradation: A Novel Therapeutic Biomarker for Cancer. Cancers (Basel) 2019; 11:cancers11070890. [PMID: 31247903 PMCID: PMC6678570 DOI: 10.3390/cancers11070890] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 06/18/2019] [Accepted: 06/21/2019] [Indexed: 12/15/2022] Open
Abstract
Effective diagnostic, prognostic and therapeutic biomarkers can help in tracking disease progress, predict patients’ survival, and considerably affect the drive for successful clinical management. The present review aims to determine how the metastatic-linked protein anterior gradient homologue 2 (AGR2) operates to affect cancer progression, and to identify associated potential diagnostic, prognostic and therapeutic biomarkers, particularly in central nervous system (CNS) tumors. Studies that show a high expression level of AGR2, and associate the protein expression with the resilience to chemotherapeutic treatments or with poor cancer survival, are reported. The primary protein structures of the seven variants of AGR2, including their functional domains, are summarized. Based on experiments in various biological models, this review shows an orchestra of multiple molecules that regulate AGR2 expression, including a feedback loop with p53. The AGR2-associated molecular functions and pathways including genomic integrity, proliferation, apoptosis, angiogenesis, adhesion, migration, stemness, and inflammation, are detailed. In addition, the mechanisms that can enable the rampant oncogenic effects of AGR2 are clarified. The different strategies used to therapeutically target AGR2-positive cancer cells are evaluated in light of the current evidence. Moreover, novel associated pathways and clinically relevant deregulated genes in AGR2 high CNS tumors are identified using a meta-analysis approach.
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Affiliation(s)
- Reem Alsereihi
- Neurooncology Translational Group, King Fahd Medical Research Center, King Abdulaziz University, P.O. Box 80216, Jeddah, 21589, Saudi Arabia.
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
| | - Hans-Juergen Schulten
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Sherin Bakhashab
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
- Biochemistry Department, King Abdulaziz University, P.O. Box 80218, Jeddah 21589, Saudi Arabia.
| | - Kulvinder Saini
- School of Biotechnology, Eternal University, Baru Sahib-173101, Himachal Pradesh, India.
| | - Ahmed M Al-Hejin
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
- Microbiology Unit, King Fahad Medical Research Center, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia.
| | - Deema Hussein
- Neurooncology Translational Group, King Fahd Medical Research Center, King Abdulaziz University, P.O. Box 80216, Jeddah, 21589, Saudi Arabia.
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
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8
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Tiemann K, Garri C, Lee SB, Malihi PD, Park M, Alvarez RM, Yap LP, Mallick P, Katz JE, Gross ME, Kani K. Loss of ER retention motif of AGR2 can impact mTORC signaling and promote cancer metastasis. Oncogene 2018; 38:3003-3018. [PMID: 30575818 DOI: 10.1038/s41388-018-0638-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 10/29/2018] [Accepted: 11/21/2018] [Indexed: 12/16/2022]
Abstract
Anterior gradient 2 (AGR2) is a member of the protein disulfide isomerase (PDI) family, which plays a role in the regulation of protein homeostasis and the unfolded protein response pathway (UPR). AGR2 has also been characterized as a proto-oncogene and a potential cancer biomarker. Cellular localization of AGR2 is emerging as a key component for understanding the role of AGR2 as a proto-oncogene. Here, we provide evidence that extracellular AGR2 (eAGR2) promotes tumor metastasis in various in vivo models. To further characterize the role of the intracellular-resident versus extracellular protein, we performed a comprehensive protein-protein interaction screen. Based on these results, we identify AGR2 as an interacting partner of the mTORC2 pathway. Importantly, our data indicates that eAGR2 promotes increased phosphorylation of RICTOR (T1135), while intracellular AGR2 (iAGR2) antagonizes its levels and phosphorylation. Localization of AGR2 also has opposing effects on the Hippo pathway, spheroid formation, and response to chemotherapy in vitro. Collectively, our results identify disparate phenotypes predicated on AGR2 localization. Our findings also provide credence for screening of eAGR2 to guide therapeutic decisions.
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Affiliation(s)
- Katrin Tiemann
- University of Southern California, Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA, USA
| | - Carolina Garri
- University of Southern California, Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA, USA
| | - Sang Bok Lee
- University of Southern California, Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA, USA
| | - Paymaneh D Malihi
- University of Southern California, Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA, USA
| | - Mincheol Park
- University of Southern California, Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA, USA
| | - Ruth M Alvarez
- University of Southern California, Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA, USA
| | - Li Peng Yap
- Department of Radiology, Keck School of Medicine, Los Angeles, CA, USA
| | - Parag Mallick
- Stanford University, Department of Radiology, Los Angeles, CA, USA
| | - Jonathan E Katz
- University of Southern California, Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA, USA
| | - Mitchell E Gross
- University of Southern California, Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA, USA
| | - Kian Kani
- University of Southern California, Keck School of Medicine, Lawrence J. Ellison Institute for Transformative Medicine, Los Angeles, CA, USA.
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9
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Delom F, Nazaraliyev A, Fessart D. The role of protein disulphide isomerase AGR2 in the tumour niche. Biol Cell 2018; 110:271-282. [DOI: 10.1111/boc.201800024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 08/21/2018] [Accepted: 09/06/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Frederic Delom
- University of Bordeaux; INSERM U1218; Bordeaux F-33000 France
- Institut Bergonié, Comprehensive Cancer Centre; Bordeaux F-33076 France
| | - Amal Nazaraliyev
- University of Bordeaux; INSERM U1218; Bordeaux F-33000 France
- Institut Bergonié, Comprehensive Cancer Centre; Bordeaux F-33076 France
| | - Delphine Fessart
- INSERM U1242; “Chemistry, Oncogenesis, Stress, Signaling”; Université; de Rennes 1; Rennes France
- Centre de Lutte Contre le Cancer Eugène Marquis; Rennes France
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10
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Mohtar MA, Hernychova L, O'Neill JR, Lawrence ML, Murray E, Vojtesek B, Hupp TR. The Sequence-specific Peptide-binding Activity of the Protein Sulfide Isomerase AGR2 Directs Its Stable Binding to the Oncogenic Receptor EpCAM. Mol Cell Proteomics 2018; 17:737-763. [PMID: 29339412 PMCID: PMC5880107 DOI: 10.1074/mcp.ra118.000573] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Indexed: 12/30/2022] Open
Abstract
AGR2 is an oncogenic endoplasmic reticulum (ER)-resident protein disulfide isomerase. AGR2 protein has a relatively unique property for a chaperone in that it can bind sequence-specifically to a specific peptide motif (TTIYY). A synthetic TTIYY-containing peptide column was used to affinity-purify AGR2 from crude lysates highlighting peptide selectivity in complex mixtures. Hydrogen-deuterium exchange mass spectrometry localized the dominant region in AGR2 that interacts with the TTIYY peptide to within a structural loop from amino acids 131–135 (VDPSL). A peptide binding site consensus of Tx[IL][YF][YF] was developed for AGR2 by measuring its activity against a mutant peptide library. Screening the human proteome for proteins harboring this motif revealed an enrichment in transmembrane proteins and we focused on validating EpCAM as a potential AGR2-interacting protein. AGR2 and EpCAM proteins formed a dose-dependent protein-protein interaction in vitro. Proximity ligation assays demonstrated that endogenous AGR2 and EpCAM protein associate in cells. Introducing a single alanine mutation in EpCAM at Tyr251 attenuated its binding to AGR2 in vitro and in cells. Hydrogen-deuterium exchange mass spectrometry was used to identify a stable binding site for AGR2 on EpCAM, adjacent to the TLIYY motif and surrounding EpCAM's detergent binding site. These data define a dominant site on AGR2 that mediates its specific peptide-binding function. EpCAM forms a model client protein for AGR2 to study how an ER-resident chaperone can dock specifically to a peptide motif and regulate the trafficking a protein destined for the secretory pathway.
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Affiliation(s)
- M Aiman Mohtar
- From the ‡University of Edinburgh, Institute of Genetics and Molecular Medicine, Edinburgh, Scotland, United Kingdom, EH4 2XR.,§National University of Malaysia, UKM Medical Molecular Biology Institute (UMBI), 56000 Kuala Lumpur, Malaysia
| | - Lenka Hernychova
- ¶Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic
| | - J Robert O'Neill
- From the ‡University of Edinburgh, Institute of Genetics and Molecular Medicine, Edinburgh, Scotland, United Kingdom, EH4 2XR
| | - Melanie L Lawrence
- From the ‡University of Edinburgh, Institute of Genetics and Molecular Medicine, Edinburgh, Scotland, United Kingdom, EH4 2XR
| | - Euan Murray
- From the ‡University of Edinburgh, Institute of Genetics and Molecular Medicine, Edinburgh, Scotland, United Kingdom, EH4 2XR.,¶Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic
| | - Borek Vojtesek
- ¶Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic
| | - Ted R Hupp
- From the ‡University of Edinburgh, Institute of Genetics and Molecular Medicine, Edinburgh, Scotland, United Kingdom, EH4 2XR; .,¶Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, 656 53 Brno, Czech Republic.,‖University of Gdansk, International Centre for Cancer Vaccine Science, ul. Wita Stwosza 63, 80-308 Gdansk, Poland
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11
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Mao YQ, Houry WA. The Role of Pontin and Reptin in Cellular Physiology and Cancer Etiology. Front Mol Biosci 2017; 4:58. [PMID: 28884116 PMCID: PMC5573869 DOI: 10.3389/fmolb.2017.00058] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 08/03/2017] [Indexed: 12/29/2022] Open
Abstract
Pontin (RUVBL1, TIP49, TIP49a, Rvb1) and Reptin (RUVBL2, TIP48, TIP49b, Rvb2) are highly conserved ATPases of the AAA+ (ATPases Associated with various cellular Activities) superfamily and are involved in various cellular processes that are important for oncogenesis. First identified as being upregulated in hepatocellular carcinoma and colorectal cancer, their overexpression has since been shown in multiple cancer types such as breast, lung, gastric, esophageal, pancreatic, kidney, bladder as well as lymphatic, and leukemic cancers. However, their exact functions are still quite unknown as they interact with many molecular complexes with vastly different downstream effectors. Within the nucleus, Pontin and Reptin participate in the TIP60 and INO80 complexes important for chromatin remodeling. Although not transcription factors themselves, Pontin and Reptin modulate the transcriptional activities of bona fide proto-oncogenes such as MYC and β-catenin. They associate with proteins involved in DNA damage repair such as PIKK complexes as well as with the core complex of Fanconi anemia pathway. They have also been shown to be important for cell cycle progression, being involved in assembly of telomerase, mitotic spindle, RNA polymerase II, and snoRNPs. When the two ATPases localize to the cytoplasm, they were reported to promote cancer cell invasion and metastasis. Due to their various roles in carcinogenesis, it is not surprising that Pontin and Reptin are proving to be important biomarkers for diagnosis and prognosis of various cancers. They are also current targets for the development of new therapeutic anticancer drugs.
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Affiliation(s)
- Yu-Qian Mao
- Department of Biochemistry, University of TorontoToronto, ON, Canada
| | - Walid A Houry
- Department of Biochemistry, University of TorontoToronto, ON, Canada.,Department of Chemistry, University of TorontoToronto, ON, Canada
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12
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Zhu Q, Mangukiya HB, Mashausi DS, Guo H, Negi H, Merugu SB, Wu Z, Li D. Anterior gradient 2 is induced in cutaneous wound and promotes wound healing through its adhesion domain. FEBS J 2017; 284:2856-2869. [PMID: 28665039 DOI: 10.1111/febs.14155] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 06/19/2017] [Accepted: 06/27/2017] [Indexed: 12/17/2022]
Abstract
Anterior gradient 2 (AGR2), a member of protein disulfide isomerase (PDI) family, is both located in cytoplasm and secreted into extracellular matrix. The orthologs of AGR2 have been linked to limb regeneration in newt and wound healing in zebrafish. In mammals, AGR2 influences multiple cell signaling pathways in tumor formation and in normal cell functions related to new tissue formation like angiogenesis. However, the function of AGR2 in mammalian wound healing remains unknown. This study aimed to investigate AGR2 expression and its function during skin wound healing and the possible application of external AGR2 in cutaneous wound to accelerate the healing process. Our results showed that AGR2 expression was induced in the migrating epidermal tongue and hyperplastic epidermis after skin excision. Topical application of recombinant AGR2 significantly accelerated wound-healing process by increasing the migration of keratinocytes (Kera.) and the recruitment of fibroblasts (Fibro.) near the wounded area. External AGR2 also promoted the migration of Kera. and Fibro. in vitro in a dose-dependent manner. The adhesion domain of AGR2 was required for the formation of focal adhesions in migrating Fibro., leading to the directional migration along AGR2 gradient. These results indicate that recombinant AGR2 accelerates skin wound healing through regulation of Kera. and Fibro. migration, thus demonstrating its potential utility as an alternative strategy of the therapeutics to accelerate the healing of acute or chronic skin wounds.
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Affiliation(s)
- Qi Zhu
- School of Pharmacy, Shanghai Jiao Tong University, China
| | | | | | - Hao Guo
- School of Pharmacy, Shanghai Jiao Tong University, China
| | - Hema Negi
- School of Pharmacy, Shanghai Jiao Tong University, China
| | | | - Zhenghua Wu
- School of Pharmacy, Shanghai Jiao Tong University, China
| | - Dawei Li
- School of Pharmacy, Shanghai Jiao Tong University, China.,Engineering Research Center of Cell and Therapeutic Antibody of Ministry of Education, Shanghai Jiao Tong University, China
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13
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Guo H, Zhu Q, Yu X, Merugu SB, Mangukiya HB, Smith N, Li Z, Zhang B, Negi H, Rong R, Cheng K, Wu Z, Li D. Tumor-secreted anterior gradient-2 binds to VEGF and FGF2 and enhances their activities by promoting their homodimerization. Oncogene 2017; 36:5098-5109. [DOI: 10.1038/onc.2017.132] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 03/18/2017] [Accepted: 03/27/2017] [Indexed: 12/11/2022]
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14
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Clarke DJ, Murray E, Faktor J, Mohtar A, Vojtesek B, MacKay CL, Smith PL, Hupp TR. Mass spectrometry analysis of the oxidation states of the pro-oncogenic protein anterior gradient-2 reveals covalent dimerization via an intermolecular disulphide bond. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2016; 1864:551-61. [DOI: 10.1016/j.bbapap.2016.02.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 01/23/2016] [Accepted: 02/09/2016] [Indexed: 10/22/2022]
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15
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Brychtova V, Mohtar A, Vojtesek B, Hupp TR. Mechanisms of anterior gradient-2 regulation and function in cancer. Semin Cancer Biol 2015; 33:16-24. [PMID: 25937245 DOI: 10.1016/j.semcancer.2015.04.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Revised: 04/10/2015] [Accepted: 04/21/2015] [Indexed: 01/12/2023]
Abstract
Proteins targeted to secretory pathway enter the endoplasmic reticulum where they undergo post-translational modification and subsequent quality control executed by exquisite catalysts of protein folding, protein disulphide isomerases (PDIs). These enzymes can often provide strict conformational protein folding solutions to highly cysteine-rich cargo as they facilitate disulphide rearrangement in the endoplasmic reticulum. Under conditions when PDI substrates are not isomerised properly, secreted proteins can accumulate in the endoplasmic reticulum leading to endoplasmic reticulum stress initiation with implications for human disease development. Anterior Gradient-2 (AGR2) is an endoplasmic reticulum-resident PDI superfamily member that has emerged as a dominant effector of basic biological properties in vertebrates including blastoderm formation and limb regeneration. AGR2 perturbation in mammals influences disease processes including cancer progression and drug resistance, asthma, and inflammatory bowel disease. This review will focus on the molecular characteristics, function, and regulation of AGR2, views on its emerging biological functions and misappropriation in disease, and prospects for therapeutic intervention into endoplasmic reticulum-resident protein folding pathways for improving the treatment of human disease.
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Affiliation(s)
- Veronika Brychtova
- Masaryk Memorial Cancer Institute, RECAMO, Zluty kopec 7, 65653 Brno, Czech Republic
| | - Aiman Mohtar
- Institute of Genetics and Molecular Medicine, Edinburgh Cancer Research Centre Cell Signalling Unit, University of Edinburgh, Crewe Road South, Edinburgh EH4 2XR, UK
| | - Borivoj Vojtesek
- Masaryk Memorial Cancer Institute, RECAMO, Zluty kopec 7, 65653 Brno, Czech Republic
| | - Ted R Hupp
- Masaryk Memorial Cancer Institute, RECAMO, Zluty kopec 7, 65653 Brno, Czech Republic; Institute of Genetics and Molecular Medicine, Edinburgh Cancer Research Centre Cell Signalling Unit, University of Edinburgh, Crewe Road South, Edinburgh EH4 2XR, UK.
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16
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Tsuji T, Satoyoshi R, Aiba N, Kubo T, Yanagihara K, Maeda D, Goto A, Ishikawa K, Yashiro M, Tanaka M. Agr2 mediates paracrine effects on stromal fibroblasts that promote invasion by gastric signet-ring carcinoma cells. Cancer Res 2014; 75:356-66. [PMID: 25488752 DOI: 10.1158/0008-5472.can-14-1693] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Agr2 is a disulfide isomerase residing in the endoplasmic reticulum (ER), which physiologically regulates protein folding and mediates resistance to ER stress. Agr2 is overexpressed in adenocarcinomas of various organs, where it participates in neoplastic transformation and metastasis, therefore acts as a pro-oncogenic protein. Besides its normal localization in the ER, Agr2 is also found in the serum and urine of cancer patients, although the physiological significance of extracellular Agr2 is poorly understood. In this study, we demonstrated that extracellular Agr2 can activate stromal fibroblasts and promote fibroblast-associated cancer invasion in gastric signet-ring cell carcinoma (SRCC), where Agr2 is highly expressed. Agr2 secreted from SRCC cells was incorporated by the surrounding gastric fibroblasts and promoted invasion by these cells. In turn, activated fibroblasts coordinated the invasive behavior of fibroblasts and cancer cells. Our findings suggested that Agr2 drives progression of gastric SRCC by exerting paracrine effects on fibroblasts in the tumor microenvironment, acting also to increase the growth and resistance of SRCC cells to oxidative and hypoxic stress as cell autonomous effects.
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Affiliation(s)
- Tadahiro Tsuji
- Department of Molecular Medicine and Biochemistry, Akita University Graduate School of Medicine, Akita, Japan. Department of Otorhinolaryngology, Akita University Graduate School of Medicine, Akita, Japan
| | - Rika Satoyoshi
- Department of Molecular Medicine and Biochemistry, Akita University Graduate School of Medicine, Akita, Japan
| | - Namiko Aiba
- Department of Molecular Medicine and Biochemistry, Akita University Graduate School of Medicine, Akita, Japan
| | - Takanori Kubo
- Department of Life Sciences, Yasuda Women's University Faculty of Pharmacy, Asaminami-ku, Hiroshima, Japan
| | - Kazuyoshi Yanagihara
- Division of Translational Research, Exploratory Oncology and Clinical Trial Center, National Cancer Center, Chiba, Japan
| | - Daichi Maeda
- Department of Cellular and Organ pathology, Akita University Graduate School of Medicine, Akita, Japan
| | - Akiteru Goto
- Department of Cellular and Organ pathology, Akita University Graduate School of Medicine, Akita, Japan
| | - Kazuo Ishikawa
- Department of Otorhinolaryngology, Akita University Graduate School of Medicine, Akita, Japan
| | - Masakazu Yashiro
- Department of Surgical Oncology, Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, Japan
| | - Masamitsu Tanaka
- Department of Molecular Medicine and Biochemistry, Akita University Graduate School of Medicine, Akita, Japan.
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17
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Di Maro G, Salerno P, Unger K, Orlandella FM, Monaco M, Chiappetta G, Thomas G, Oczko-Wojciechowska M, Masullo M, Jarzab B, Santoro M, Salvatore G. Anterior gradient protein 2 promotes survival, migration and invasion of papillary thyroid carcinoma cells. Mol Cancer 2014; 13:160. [PMID: 24976026 PMCID: PMC4094684 DOI: 10.1186/1476-4598-13-160] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Accepted: 06/24/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Through a transcriptome microarray analysis, we have isolated Anterior gradient protein 2 (AGR2) as a gene up-regulated in papillary thyroid carcinoma (PTC). AGR2 is a disulfide isomerase over-expressed in several human carcinomas and recently linked to endoplasmic reticulum (ER) stress. Here, we analyzed the expression of AGR2 in PTC and its functional role. METHODS Expression of AGR2 was studied by immunohistochemistry and real time PCR in normal thyroids and in PTC samples. The function of AGR2 was studied by knockdown in PTC cells and by ectopic expression in non-transformed thyroid cells. The role of AGR2 in the ER stress was analyzed upon treatment of cells, expressing or not AGR2, with Bortezomib and analyzing by Western blot the expression levels of GADD153. RESULTS PTC over-expressed AGR2 at mRNA and protein levels. Knockdown of AGR2 in PTC cells induced apoptosis and decreased migration and invasion. Ectopic expression of AGR2 in non-transformed human thyroid cells increased migration and invasion and protected cells from ER stress induced by Bortezomib. CONCLUSIONS AGR2 is a novel marker of PTC and plays a role in thyroid cancer cell survival, migration, invasion and protection from ER stress.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Giuliana Salvatore
- Dipartimento di Scienze Motorie e del Benessere, Universita' "Parthenope", Via Medina 40, Naples 80133, Italy.
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18
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Reddy KD, DeForte S, Uversky VN. Digested disorder: Quarterly intrinsic disorder digest (July-August-September, 2013). INTRINSICALLY DISORDERED PROTEINS 2014; 2:e27833. [PMID: 28232877 PMCID: PMC5314876 DOI: 10.4161/idp.27833] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 01/13/2014] [Indexed: 12/26/2022]
Abstract
The current literature on intrinsically disordered proteins grows fast. To keep interested readers up to speed with this literature, we continue a "Digested Disorder" project and represent a new issue of reader's digest of the research papers and reviews on intrinsically disordered proteins. The only 2 criteria for inclusion in this digest are the publication date (a paper should be published within the covered time frame) and topic (a paper should be dedicated to any aspect of protein intrinsic disorder). The current digest issue covers papers published during the third quarter of 2013; i.e., during the period of June, July, and September of 2013. Similar to previous issues, the papers are grouped hierarchically by topics they cover, and for each of the included paper a short description is given on its major findings.
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Affiliation(s)
- Krishna D Reddy
- Department of Molecular Medicine; Morsani College of Medicine; University of South Florida; Tampa, FL USA
| | - Shelly DeForte
- Department of Molecular Medicine; Morsani College of Medicine; University of South Florida; Tampa, FL USA
| | - Vladimir N Uversky
- Department of Molecular Medicine; Morsani College of Medicine; University of South Florida; Tampa, FL USA; USF Health Byrd Alzheimer's Research Institute; Morsani College of Medicine; University of South Florida; Tampa, FL USA; Department of Biological Sciences; Faculty of Science; King Abdulaziz University; Jeddah, Saudi Arabia; Institute for Biological Instrumentation; Russian Academy of Sciences; Pushchino, Moscow Region, Russia
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19
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Gabizon R, Friedler A. Allosteric modulation of protein oligomerization: an emerging approach to drug design. Front Chem 2014; 2:9. [PMID: 24790978 PMCID: PMC3982530 DOI: 10.3389/fchem.2014.00009] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 02/22/2014] [Indexed: 01/05/2023] Open
Abstract
Many disease-related proteins are in equilibrium between different oligomeric forms. The regulation of this equilibrium plays a central role in maintaining the activity of these proteins in vitro and in vivo. Modulation of the oligomerization equilibrium of proteins by molecules that bind preferentially to a specific oligomeric state is emerging as a potential therapeutic strategy that can be applied to many biological systems such as cancer and viral infections. The target proteins for such compounds are diverse in structure and sequence, and may require different approaches for shifting their oligomerization equilibrium. The discovery of such oligomerization-modulating compounds is thus achieved based on existing structural knowledge about the specific target proteins, as well as on their interactions with partner proteins or with ligands. In silico design and combinatorial tools such as peptide arrays and phage display are also used for discovering compounds that modulate protein oligomerization. The current review highlights some of the recent developments in the design of compounds aimed at modulating the oligomerization equilibrium of proteins, including the "shiftides" approach developed in our lab.
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Affiliation(s)
| | - Assaf Friedler
- Institute of Chemistry, The Hebrew University of JerusalemJerusalem, Israel
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