PMID- 24439371 OWN - NLM STAT- MEDLINE DCOM- 20140407 LR - 20220330 IS - 1097-4172 (Electronic) IS - 0092-8674 (Print) IS - 0092-8674 (Linking) VI - 156 IP - 1-2 DP - 2014 Jan 16 TI - An extracellular bacterial pathogen modulates host metabolism to regulate its own sensing and proliferation. PG - 97-108 LID - S0092-8674(13)01539-0 [pii] LID - 10.1016/j.cell.2013.12.007 [doi] AB - Successful infection depends on the ability of the pathogen to gain nutrients from the host. The extracellular pathogenic bacterium group A Streptococcus (GAS) causes a vast array of human diseases. By using the quorum-sensing sil system as a reporter, we found that, during adherence to host cells, GAS delivers streptolysin toxins, creating endoplasmic reticulum stress. This, in turn, increases asparagine (ASN) synthetase expression and the production of ASN. The released ASN is sensed by the bacteria, altering the expression of approximately 17% of GAS genes of which about one-third are dependent on the two-component system TrxSR. The expression of the streptolysin toxins is strongly upregulated, whereas genes linked to proliferation are downregulated in ASN absence. Asparaginase, a widely used chemotherapeutic agent, arrests GAS growth in human blood and blocks GAS proliferation in a mouse model of human bacteremia. These results delineate a pathogenic pathway and propose a therapeutic strategy against GAS infections. CI - Copyright (c) 2014 Elsevier Inc. All rights reserved. FAU - Baruch, Moshe AU - Baruch M AD - Department of Microbiology and Molecular Genetics, The Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel. FAU - Belotserkovsky, Ilia AU - Belotserkovsky I AD - Department of Microbiology and Molecular Genetics, The Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel. FAU - Hertzog, Baruch B AU - Hertzog BB AD - Department of Microbiology and Molecular Genetics, The Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel. FAU - Ravins, Miriam AU - Ravins M AD - Department of Microbiology and Molecular Genetics, The Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel. FAU - Dov, Eran AU - Dov E AD - Department of Microbiology and Molecular Genetics, The Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel. FAU - McIver, Kevin S AU - McIver KS AD - Department of Cell Biology & Molecular Genetics and Maryland Pathogen Research Institut, University of Maryland, College Park, MD 20742, USA. FAU - Le Breton, Yoann S AU - Le Breton YS AD - Department of Cell Biology & Molecular Genetics and Maryland Pathogen Research Institut, University of Maryland, College Park, MD 20742, USA. FAU - Zhou, Yiting AU - Zhou Y AD - Mechanism of Inflammation Program, Center for Research Excellence & Technological Enterprise (CREATE), National University of Singapore and The Hebrew University of Jerusalem (HUJI), Singapore 138602, Singapore. FAU - Cheng, Catherine Youting AU - Cheng CY AD - Mechanism of Inflammation Program, Center for Research Excellence & Technological Enterprise (CREATE), National University of Singapore and The Hebrew University of Jerusalem (HUJI), Singapore 138602, Singapore. FAU - Hanski, Emanuel AU - Hanski E AD - Department of Microbiology and Molecular Genetics, The Hebrew University of Jerusalem, Faculty of Medicine, Jerusalem 91120, Israel; Mechanism of Inflammation Program, Center for Research Excellence & Technological Enterprise (CREATE), National University of Singapore and The Hebrew University of Jerusalem (HUJI), Singapore 138602, Singapore. Electronic address: emanuelh@ekmd.huji.ac.il. LA - eng SI - SRA/PRJNA2188-56 GR - R01 AI047928/AI/NIAID NIH HHS/United States GR - AI47928/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Cell JT - Cell JID - 0413066 RN - 0 (Virulence Factors) RN - 7006-34-0 (Asparagine) RN - EC 6.3.1.1 (Aspartate-Ammonia Ligase) SB - IM EIN - Cell. 2014 Jan 30;156(3):617. Chen, Catherine Youting [corrected to Cheng, Catherine Youting] CIN - Nat Rev Microbiol. 2014 Mar;12(3):154. PMID: 24525876 MH - Animals MH - Asparagine/metabolism MH - Aspartate-Ammonia Ligase/genetics/metabolism MH - Bacteremia/microbiology MH - Disease Models, Animal MH - Endoplasmic Reticulum Stress MH - HeLa Cells MH - Humans MH - Male MH - Mice MH - Mice, Inbred BALB C MH - *Quorum Sensing MH - Streptococcal Infections/*microbiology MH - Streptococcus/cytology/*metabolism/pathogenicity MH - Transcription, Genetic MH - Virulence Factors/genetics PMC - PMC3926133 MID - NIHMS548314 EDAT- 2014/01/21 06:00 MHDA- 2014/04/08 06:00 PMCR- 2015/01/16 CRDT- 2014/01/21 06:00 PHST- 2013/02/19 00:00 [received] PHST- 2013/09/16 00:00 [revised] PHST- 2013/11/15 00:00 [accepted] PHST- 2014/01/21 06:00 [entrez] PHST- 2014/01/21 06:00 [pubmed] PHST- 2014/04/08 06:00 [medline] PHST- 2015/01/16 00:00 [pmc-release] AID - S0092-8674(13)01539-0 [pii] AID - 10.1016/j.cell.2013.12.007 [doi] PST - ppublish SO - Cell. 2014 Jan 16;156(1-2):97-108. doi: 10.1016/j.cell.2013.12.007.