RT² Profiler PCR Array (Rotor-Gene® Format) Human Unfolded Protein Response
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Deregulated Gene Expression Pathways in Myelodysplastic Syndrome Hematopoietic Stem Cells
Leukemia (2010) 24, 756–764 & 2010 Macmillan Publishers Limited All rights reserved 0887-6924/10 $32.00 www.nature.com/leu ORIGINAL ARTICLE Deregulated gene expression pathways in myelodysplastic syndrome hematopoietic stem cells A Pellagatti1, M Cazzola2, A Giagounidis3, J Perry1, L Malcovati2, MG Della Porta2,MJa¨dersten4, S Killick5, A Verma6, CJ Norbury7, E Hellstro¨m-Lindberg4, JS Wainscoat1 and J Boultwood1 1LRF Molecular Haematology Unit, NDCLS, John Radcliffe Hospital, Oxford, UK; 2Department of Hematology Oncology, University of Pavia Medical School, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy; 3Medizinische Klinik II, St Johannes Hospital, Duisburg, Germany; 4Division of Hematology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden; 5Department of Haematology, Royal Bournemouth Hospital, Bournemouth, UK; 6Albert Einstein College of Medicine, Bronx, NY, USA and 7Sir William Dunn School of Pathology, University of Oxford, Oxford, UK To gain insight into the molecular pathogenesis of the the World Health Organization.6,7 Patients with refractory myelodysplastic syndromes (MDS), we performed global gene anemia (RA) with or without ringed sideroblasts, according to expression profiling and pathway analysis on the hemato- poietic stem cells (HSC) of 183 MDS patients as compared with the the French–American–British classification, were subdivided HSC of 17 healthy controls. The most significantly deregulated based on the presence or absence of multilineage dysplasia. In pathways in MDS include interferon signaling, thrombopoietin addition, patients with RA with excess blasts (RAEB) were signaling and the Wnt pathways. Among the most signifi- subdivided into two categories, RAEB1 and RAEB2, based on the cantly deregulated gene pathways in early MDS are immuno- percentage of bone marrow blasts. -
Deletion of Endoplasmic Reticulum Stress-Responsive Co-Chaperone P58ipk Protects Mice from Diet-Induced Steatohepatitis
Zurich Open Repository and Archive University of Zurich Main Library Strickhofstrasse 39 CH-8057 Zurich www.zora.uzh.ch Year: 2018 Deletion of endoplasmic reticulum stress-responsive co-chaperone p58IPK protects mice from diet-induced steatohepatitis Bandla, Harikrishna ; Dasgupta, Debanjali ; Mauer, Amy S ; Nozickova, Barbora ; Kumar, Swarup ; Hirsova, Petra ; Graham, Rondell P ; Malhi, Harmeet DOI: https://doi.org/10.1111/hepr.13052 Posted at the Zurich Open Repository and Archive, University of Zurich ZORA URL: https://doi.org/10.5167/uzh-144890 Journal Article Accepted Version Originally published at: Bandla, Harikrishna; Dasgupta, Debanjali; Mauer, Amy S; Nozickova, Barbora; Kumar, Swarup; Hirsova, Petra; Graham, Rondell P; Malhi, Harmeet (2018). Deletion of endoplasmic reticulum stress-responsive co-chaperone p58IPK protects mice from diet-induced steatohepatitis. Hepatology Research, 48(6):479- 494. DOI: https://doi.org/10.1111/hepr.13052 Deletion of endoplasmic reticulum stress-responsive co-chaperone p58IPK protects mice from diet-induced steatohepatitis Harikrishna Bandla1, Debanjali Dasgupta1, Amy S. Mauer1, Barbora Nozickova2, Swarup Kumar3, Petra Hirsova1, Rondell P. Graham4, Harmeet Malhi1* 1. Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 2. Universitatsspital Zurich, 8096, Ramistrasse 100, Zurich, Switzerland 3. Department of Medicine, Saint Vincent Hospital, 123 Summer St, Worcester, MA 4. Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN Corresponding author: Harmeet Malhi, M.B.B.S. Associate Professor of Medicine and Physiology Mayo Clinic College of Medicine 200 First Street SW Rochester, MN 55905 Tel: 507 284 0686 Fax: 507 284 0762 Email: [email protected] Funding: This work was supported by DK 97178, DK107402 and DK111378 (H.M.), the Robert and Elizabeth Strickland Career Development Award from the Division of Endocrinology (H.M.), the Gilead Sciences Research Scholars Program in Liver Disease (H.M.) and the Palumbo Foundation (H.M.), the Edward C. -
Proteomic Profile of Human Spermatozoa in Healthy And
Cao et al. Reproductive Biology and Endocrinology (2018) 16:16 https://doi.org/10.1186/s12958-018-0334-1 REVIEW Open Access Proteomic profile of human spermatozoa in healthy and asthenozoospermic individuals Xiaodan Cao, Yun Cui, Xiaoxia Zhang, Jiangtao Lou, Jun Zhou, Huafeng Bei and Renxiong Wei* Abstract Asthenozoospermia is considered as a common cause of male infertility and characterized by reduced sperm motility. However, the molecular mechanism that impairs sperm motility remains unknown in most cases. In the present review, we briefly reviewed the proteome of spermatozoa and seminal plasma in asthenozoospermia and considered post-translational modifications in spermatozoa of asthenozoospermia. The reduction of sperm motility in asthenozoospermic patients had been attributed to factors, for instance, energy metabolism dysfunction or structural defects in the sperm-tail protein components and the differential proteins potentially involved in sperm motility such as COX6B, ODF, TUBB2B were described. Comparative proteomic analysis open a window to discover the potential pathogenic mechanisms of asthenozoospermia and the biomarkers with clinical significance. Keywords: Proteome, Spermatozoa, Sperm motility, Asthenozoospermia, Infertility Background fertilization failure [4] and it has become clear that iden- Infertility is defined as the lack of ability to achieve a tifying the precise proteins and the pathways involved in clinical pregnancy after one year or more of unprotected sperm motility is needed [5]. and well-timed intercourse with the same partner [1]. It is estimated that around 15% of couples of reproductive age present with infertility, and about half of the infertil- Application of proteomic techniques in male ity is associated with male partner [2, 3]. -
Computational Genome-Wide Identification of Heat Shock Protein Genes in the Bovine Genome [Version 1; Peer Review: 2 Approved, 1 Approved with Reservations]
F1000Research 2018, 7:1504 Last updated: 08 AUG 2021 RESEARCH ARTICLE Computational genome-wide identification of heat shock protein genes in the bovine genome [version 1; peer review: 2 approved, 1 approved with reservations] Oyeyemi O. Ajayi1,2, Sunday O. Peters3, Marcos De Donato2,4, Sunday O. Sowande5, Fidalis D.N. Mujibi6, Olanrewaju B. Morenikeji2,7, Bolaji N. Thomas 8, Matthew A. Adeleke 9, Ikhide G. Imumorin2,10,11 1Department of Animal Breeding and Genetics, Federal University of Agriculture, Abeokuta, Nigeria 2International Programs, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, 14853, USA 3Department of Animal Science, Berry College, Mount Berry, GA, 30149, USA 4Departamento Regional de Bioingenierias, Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Queretaro, Mexico 5Department of Animal Production and Health, Federal University of Agriculture, Abeokuta, Nigeria 6Usomi Limited, Nairobi, Kenya 7Department of Animal Production and Health, Federal University of Technology, Akure, Nigeria 8Department of Biomedical Sciences, Rochester Institute of Technology, Rochester, NY, 14623, USA 9School of Life Sciences, University of KwaZulu-Natal, Durban, 4000, South Africa 10School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, 30032, USA 11African Institute of Bioscience Research and Training, Ibadan, Nigeria v1 First published: 20 Sep 2018, 7:1504 Open Peer Review https://doi.org/10.12688/f1000research.16058.1 Latest published: 20 Sep 2018, 7:1504 https://doi.org/10.12688/f1000research.16058.1 Reviewer Status Invited Reviewers Abstract Background: Heat shock proteins (HSPs) are molecular chaperones 1 2 3 known to bind and sequester client proteins under stress. Methods: To identify and better understand some of these proteins, version 1 we carried out a computational genome-wide survey of the bovine 20 Sep 2018 report report report genome. -
View of HER2: Human Epidermal Growth Factor Receptor 2; TNBC: Triple-Negative Breast Resistance to Systemic Therapy in Patients with Breast Cancer
Wen et al. Cancer Cell Int (2018) 18:128 https://doi.org/10.1186/s12935-018-0625-9 Cancer Cell International PRIMARY RESEARCH Open Access Sulbactam‑enhanced cytotoxicity of doxorubicin in breast cancer cells Shao‑hsuan Wen1†, Shey‑chiang Su2†, Bo‑huang Liou3, Cheng‑hao Lin1 and Kuan‑rong Lee1* Abstract Background: Multidrug resistance (MDR) is a major obstacle in breast cancer treatment. The predominant mecha‑ nism underlying MDR is an increase in the activity of adenosine triphosphate (ATP)-dependent drug efux trans‑ porters. Sulbactam, a β-lactamase inhibitor, is generally combined with β-lactam antibiotics for treating bacterial infections. However, sulbactam alone can be used to treat Acinetobacter baumannii infections because it inhibits the expression of ATP-binding cassette (ABC) transporter proteins. This is the frst study to report the efects of sulbactam on mammalian cells. Methods: We used the breast cancer cell lines as a model system to determine whether sulbactam afects cancer cells. The cell viabilities in the present of doxorubicin with or without sulbactam were measured by MTT assay. Protein identities and the changes in protein expression levels in the cells after sulbactam and doxorubicin treatment were determined using LC–MS/MS. Real-time reverse transcription polymerase chain reaction (real-time RT-PCR) was used to analyze the change in mRNA expression levels of ABC transporters after treatment of doxorubicin with or without sulbactam. The efux of doxorubicin was measures by the doxorubicin efux assay. Results: MTT assay revealed that sulbactam enhanced the cytotoxicity of doxorubicin in breast cancer cells. The results of proteomics showed that ABC transporter proteins and proteins associated with the process of transcription and initiation of translation were reduced. -
Defining Functional Interactions During Biogenesis of Epithelial Junctions
ARTICLE Received 11 Dec 2015 | Accepted 13 Oct 2016 | Published 6 Dec 2016 | Updated 5 Jan 2017 DOI: 10.1038/ncomms13542 OPEN Defining functional interactions during biogenesis of epithelial junctions J.C. Erasmus1,*, S. Bruche1,*,w, L. Pizarro1,2,*, N. Maimari1,3,*, T. Poggioli1,w, C. Tomlinson4,J.Lees5, I. Zalivina1,w, A. Wheeler1,w, A. Alberts6, A. Russo2 & V.M.M. Braga1 In spite of extensive recent progress, a comprehensive understanding of how actin cytoskeleton remodelling supports stable junctions remains to be established. Here we design a platform that integrates actin functions with optimized phenotypic clustering and identify new cytoskeletal proteins, their functional hierarchy and pathways that modulate E-cadherin adhesion. Depletion of EEF1A, an actin bundling protein, increases E-cadherin levels at junctions without a corresponding reinforcement of cell–cell contacts. This unexpected result reflects a more dynamic and mobile junctional actin in EEF1A-depleted cells. A partner for EEF1A in cadherin contact maintenance is the formin DIAPH2, which interacts with EEF1A. In contrast, depletion of either the endocytic regulator TRIP10 or the Rho GTPase activator VAV2 reduces E-cadherin levels at junctions. TRIP10 binds to and requires VAV2 function for its junctional localization. Overall, we present new conceptual insights on junction stabilization, which integrate known and novel pathways with impact for epithelial morphogenesis, homeostasis and diseases. 1 National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK. 2 Computing Department, Imperial College London, London SW7 2AZ, UK. 3 Bioengineering Department, Faculty of Engineering, Imperial College London, London SW7 2AZ, UK. 4 Department of Surgery & Cancer, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK. -
A Computational Approach for Defining a Signature of Β-Cell Golgi Stress in Diabetes Mellitus
Page 1 of 781 Diabetes A Computational Approach for Defining a Signature of β-Cell Golgi Stress in Diabetes Mellitus Robert N. Bone1,6,7, Olufunmilola Oyebamiji2, Sayali Talware2, Sharmila Selvaraj2, Preethi Krishnan3,6, Farooq Syed1,6,7, Huanmei Wu2, Carmella Evans-Molina 1,3,4,5,6,7,8* Departments of 1Pediatrics, 3Medicine, 4Anatomy, Cell Biology & Physiology, 5Biochemistry & Molecular Biology, the 6Center for Diabetes & Metabolic Diseases, and the 7Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202; 2Department of BioHealth Informatics, Indiana University-Purdue University Indianapolis, Indianapolis, IN, 46202; 8Roudebush VA Medical Center, Indianapolis, IN 46202. *Corresponding Author(s): Carmella Evans-Molina, MD, PhD ([email protected]) Indiana University School of Medicine, 635 Barnhill Drive, MS 2031A, Indianapolis, IN 46202, Telephone: (317) 274-4145, Fax (317) 274-4107 Running Title: Golgi Stress Response in Diabetes Word Count: 4358 Number of Figures: 6 Keywords: Golgi apparatus stress, Islets, β cell, Type 1 diabetes, Type 2 diabetes 1 Diabetes Publish Ahead of Print, published online August 20, 2020 Diabetes Page 2 of 781 ABSTRACT The Golgi apparatus (GA) is an important site of insulin processing and granule maturation, but whether GA organelle dysfunction and GA stress are present in the diabetic β-cell has not been tested. We utilized an informatics-based approach to develop a transcriptional signature of β-cell GA stress using existing RNA sequencing and microarray datasets generated using human islets from donors with diabetes and islets where type 1(T1D) and type 2 diabetes (T2D) had been modeled ex vivo. To narrow our results to GA-specific genes, we applied a filter set of 1,030 genes accepted as GA associated. -
The Endoplasmic Reticulum Chaperone Erdj4 Is Required for Survival, Glucose Metabolism and B Cell Development
The endoplasmic reticulum chaperone ERdj4 is required for survival, glucose metabolism and B cell development A dissertation submitted to the University of Cincinnati in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY in the Immunobiology Graduate Program of the College of Medicine 2012 by Jill Marie Fritz B.A., Miami University, Oxford, OH Advisory Committee: Timothy Weaver, M.S., Ph.D., Chair George Deepe, M.D. Fred Finkelman, M.D. H. Leighton Grimes, Ph.D. Christopher Karp, M.D. Francis McCormack, M.D. ABSTRACT The ER-localized DnaJ homologue 4 (ERdj4) is a soluble ER chaperone induced by the unfolded protein response (UPR) to assist in the removal of unfolded/misfolded proteins from the ER lumen for proteasomal degradation. To elucidate the function of ERdj4 in vivo, ERdj4 gene trap (ERdj4GT/GT) mice were generated from embryonic stem cells harboring a gene trap cassette inserted into the ERdj4 locus. ERdj4GT/GT mice expressed hypomorphic levels of ERdj4 with a 10-100 fold reduction in all tissues and cell types examined. Approximately 30-50% of ERdj4GT/GT mice died perinatally in association with growth retardation and hypoglycemia. ERdj4GT/GT neonates exhibited signs of delayed pancreatic development, including abnormal distribution of pancreatic α- and β-cells and reduced insulin and glucagon in the pancreas. Surviving adult ERdj4GT/GT mice were glucose intolerant, resulting from hypoinsulinemia rather than insulin resistance. Pancreatic β-cells exhibited increased ER stress, including ER dilation and upregulation of the UPR. Proinsulin accumulated in the ER of β-cells from ERdj4GT/GT mice consistent with our previous finding that proinsulin is a substrate for ERdj4. -
Allosteric HSP70 Inhibitors Perturb Mitochondrial Proteostasis and Overcome Proteasome Inhibitor Resistance in Multiple Myeloma
bioRxiv preprint doi: https://doi.org/10.1101/2020.04.21.052456; this version posted April 23, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Title: Allosteric HSP70 inhibitors perturb mitochondrial proteostasis and overcome proteasome inhibitor resistance in multiple myeloma Authors: Ian D. Ferguson1, Yu-Hsiu T. Lin1,+, Christine Lam1,+, Hao Shao2, Martina Hale1, Kevin M. Tharp3, Margarette C. Mariano1, Veronica Steri4, Donghui Wang4, Paul Phojanokong4, Sami T. Tuomivaara1, Byron Hann4, Christoph Driessen5, Brian Van Ness6, Jason E. Gestwicki2, Arun P. Wiita1,* Affiliations: 1Dept. of Laboratory Medicine, 2Institute for Neurodegenerative Disease, 3Dept. of Surgery, 4Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, USA, 5Department of Oncology and Hematology, Kantonsspital St. Gallen, St. Gallen, Switzerland, 6Department of Genetics, Cell Biology & Development, University of Minnesota, Minneapolis, MN, USA. +equal contribution. *Correspondence: Arun P. Wiita, MD, PhD UCSF Dept. of Laboratory Medicine [email protected] 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.04.21.052456; this version posted April 23, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Abstract Proteasome inhibitor (PI) resistance remains a central challenge in multiple myeloma. To identify pathways mediating resistance, we first map proteasome-associated genetic co- dependencies. We identify cytosolic heat shock protein 70 (HSP70) chaperones as potential targets, consistent with proposed mechanisms of myeloma tumor cells overcoming PI-induced stress. These results lead us to explore allosteric HSP70 inhibitors (JG compounds) as myeloma therapeutics. -
At Elevated Temperatures, Heat Shock Protein Genes Show Altered Ratios Of
EXPERIMENTAL AND THERAPEUTIC MEDICINE 22: 900, 2021 At elevated temperatures, heat shock protein genes show altered ratios of different RNAs and expression of new RNAs, including several novel HSPB1 mRNAs encoding HSP27 protein isoforms XIA GAO1,2, KEYIN ZHANG1,2, HAIYAN ZHOU3, LUCAS ZELLMER4, CHENGFU YUAN5, HAI HUANG6 and DEZHONG JOSHUA LIAO2,6 1Department of Pathology, Guizhou Medical University Hospital; 2Key Lab of Endemic and Ethnic Diseases of The Ministry of Education of China in Guizhou Medical University; 3Clinical Research Center, Guizhou Medical University Hospital, Guiyang, Guizhou 550004, P.R. China; 4Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA; 5Department of Biochemistry, China Three Gorges University, Yichang, Hubei 443002; 6Center for Clinical Laboratories, Guizhou Medical University Hospital, Guiyang, Guizhou 550004, P.R. China Received December 16, 2020; Accepted May 10, 2021 DOI: 10.3892/etm.2021.10332 Abstract. Heat shock proteins (HSP) serve as chaperones genes may engender multiple protein isoforms. These results to maintain the physiological conformation and function of collectively suggested that, besides increasing their expres‑ numerous cellular proteins when the ambient temperature is sion, certain HSP and associated genes also use alternative increased. To determine how accurate the general assumption transcription start sites to produce multiple RNA transcripts that HSP gene expression is increased in febrile situations is, and use alternative splicing of a transcript to produce multiple the RNA levels of the HSF1 (heat shock transcription factor 1) mature RNAs, as important mechanisms for responding to an gene and certain HSP genes were determined in three cell increased ambient temperature in vitro. lines cultured at 37˚C or 39˚C for three days. -
This Is the Accepted Version of the Author's Manuscript. Reis SD, Pinho BR, Oliveira JMA "Modulation of Molecular Chapero
This is the Accepted Version of the Author’s Manuscript. Reis SD, Pinho BR, Oliveira JMA "Modulation of molecular chaperones in Huntington’s disease and other polyglutamine disorders". Molecular Neurobiology. September 2016 DOI: 10.1007/s12035-016-0120-z Link to Publisher: https://link.springer.com/article/10.1007%2Fs12035-016-0120-z Links to Full Text (RedCube, shared via Springer Nature) – View Only http://rdcu.be/kwjE 1 ! Title page Modulation of molecular chaperones in Huntington’s disease and other polyglutamine disorders Sara D. Reis, Brígida R. Pinho, Jorge M. A. Oliveira* REQUIMTE/LAQV, Department of Drug Sciences, Pharmacology Lab, Faculty of Pharmacy, University of Porto, Porto, Portugal *Corresponding author: Jorge M. Ascenção Oliveira Tel. +351 220428610 Email: [email protected] Acknowledgements This work was supported by Fundação para a Ciência e a Tecnologia (FCT): Strategic award UID/QUI/50006/2013, and by the research grant PTDC/NEU-NMC/0412/2014 (PI: JMAO), co- financed by the European Union (FEDER, QREN, COMPETE) – POCI-01-0145-FEDER- 016577. SDR acknowledges FCT for her PhD Grant (PD/BD/113567/2015). BRP acknowledges FCT for her PostDoc Grant (SFRH/BPD/102259/2014). We thank Ana Isabel Duarte (PhD, U. Coimbra) and Maria Clara Quintas (PhD, U. Porto) for reading and commenting the initial manuscript draft. 2 ! Abstract Polyglutamine expansion mutations in specific proteins underlie the pathogenesis of a group of progressive neurodegenerative disorders, including Huntington’s disease, spinal and bulbar muscular atrophy, dentatorubral-pallidoluysian atrophy, and several spinocerebellar ataxias. The different mutant proteins share ubiquitous expression and abnormal proteostasis, with misfolding and aggregation, but nevertheless evoke distinct patterns of neurodegeneration. -
Review Article Molecular Chaperones of Leishmania: Central Players in Many Stress-Related and -Unrelated Physiological Processes
Hindawi Publishing Corporation BioMed Research International Volume 2015, Article ID 301326, 21 pages http://dx.doi.org/10.1155/2015/301326 Review Article Molecular Chaperones of Leishmania: Central Players in Many Stress-Related and -Unrelated Physiological Processes Jose M. Requena,1 Ana M. Montalvo,2 and Jorge Fraga2 1 Centro de Biolog´ıa Molecular “Severo Ochoa” (CSIC-UAM), Universidad Autonoma´ de Madrid, 28049 Madrid, Spain 2Departamento de Parasitolog´ıa, Instituto de Medicina Tropical “Pedro Kour´ı”, 17100 Habana, Cuba Correspondence should be addressed to Jose M. Requena; [email protected] Received 7 March 2015; Accepted 24 May 2015 Academic Editor: Mehdi Chenik Copyright © 2015 Jose M. Requena et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Molecular chaperones are key components in the maintenance of cellular homeostasis and survival, not only during stress but also under optimal growth conditions. Folding of nascent polypeptides is supported by molecular chaperones, which avoid the formation of aggregates by preventing nonspecific interactions and aid, when necessary, the translocation of proteins to their correct intracellular localization. Furthermore, when proteins are damaged, molecular chaperones may also facilitate their refolding or, in the case of irreparable proteins, their removal by the protein degradation machinery of the cell. During their digenetic lifestyle, Leishmania parasites encounter and adapt to harsh environmental conditions, such as nutrient deficiency, hypoxia, oxidative stress, changing pH, and shifts in temperature; all these factors are potential triggers of cellular stress. We summarize here our current knowledge on the main types of molecular chaperones in Leishmania and their functions.