1
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Mishra A, Lai GC, Yao LJ, Aung TT, Shental N, Rotter-Maskowitz A, Shepherdson E, Singh GSN, Pai R, Shanti A, Wong RMM, Lee A, Khyriem C, Dutertre CA, Chakarov S, Srinivasan KG, Shadan NB, Zhang XM, Khalilnezhad S, Cottier F, Tan ASM, Low G, Chen P, Fan Y, Hor PX, Lee AKM, Choolani M, Vermijlen D, Sharma A, Fuks G, Straussman R, Pavelka N, Malleret B, McGovern N, Albani S, Chan JKY, Ginhoux F. Microbial exposure during early human development primes fetal immune cells. Cell 2021; 184:3394-3409.e20. [PMID: 34077752 PMCID: PMC8240556 DOI: 10.1016/j.cell.2021.04.039] [Citation(s) in RCA: 120] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 02/09/2021] [Accepted: 04/23/2021] [Indexed: 02/06/2023]
Abstract
The human fetal immune system begins to develop early during gestation; however, factors responsible for fetal immune-priming remain elusive. We explored potential exposure to microbial agents in utero and their contribution toward activation of memory T cells in fetal tissues. We profiled microbes across fetal organs using 16S rRNA gene sequencing and detected low but consistent microbial signal in fetal gut, skin, placenta, and lungs in the 2nd trimester of gestation. We identified several live bacterial strains including Staphylococcus and Lactobacillus in fetal tissues, which induced in vitro activation of memory T cells in fetal mesenteric lymph node, supporting the role of microbial exposure in fetal immune-priming. Finally, using SEM and RNA-ISH, we visualized discrete localization of bacteria-like structures and eubacterial-RNA within 14th weeks fetal gut lumen. These findings indicate selective presence of live microbes in fetal organs during the 2nd trimester of gestation and have broader implications toward the establishment of immune competency and priming before birth.
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Affiliation(s)
- Archita Mishra
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Ghee Chuan Lai
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Leong Jing Yao
- Translational Immunology Institute, Singhealth/Duke-NUS Academic Medical Centre, the Academia, 20 College Road, Discovery Tower Level 8, Singapore 169856, Singapore
| | - Thet Tun Aung
- Department of Microbiology and Immunology, Immunology Translational Research Programme, Yong Loo Lin School of Medicine, Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore 117597, Singapore
| | - Noam Shental
- Department of Mathematics and Computer Science, Open University of Israel, Ra'anana 4353701, Israel
| | - Aviva Rotter-Maskowitz
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Edwin Shepherdson
- Department of Reproductive Medicine, KK Women's and Children's Hospital, Singapore 229899, Singapore
| | - Gurmit Singh Naranjan Singh
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Rhea Pai
- Genome Institute of Singapore (GIS), A(∗)STAR, 60 Biopolis Street, Singapore 138672, Singapore
| | - Adhika Shanti
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Regina Men Men Wong
- Genome Institute of Singapore (GIS), A(∗)STAR, 60 Biopolis Street, Singapore 138672, Singapore
| | - Andrea Lee
- Translational Immunology Institute, Singhealth/Duke-NUS Academic Medical Centre, the Academia, 20 College Road, Discovery Tower Level 8, Singapore 169856, Singapore
| | - Costerwell Khyriem
- Department of Reproductive Medicine, KK Women's and Children's Hospital, Singapore 229899, Singapore
| | - Charles Antoine Dutertre
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore; Translational Immunology Institute, Singhealth/Duke-NUS Academic Medical Centre, the Academia, 20 College Road, Discovery Tower Level 8, Singapore 169856, Singapore; Program in Emerging Infectious Disease, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Svetoslav Chakarov
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - K G Srinivasan
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Nurhidaya Binte Shadan
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Xiao-Meng Zhang
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Shabnam Khalilnezhad
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Fabien Cottier
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Alrina Shin Min Tan
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Gillian Low
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Phyllis Chen
- Translational Immunology Institute, Singhealth/Duke-NUS Academic Medical Centre, the Academia, 20 College Road, Discovery Tower Level 8, Singapore 169856, Singapore
| | - Yiping Fan
- Department of Reproductive Medicine, KK Women's and Children's Hospital, Singapore 229899, Singapore; Experimental Fetal Medicine Group, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Pei Xiang Hor
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Avery Khoo May Lee
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Mahesh Choolani
- Department of Obstetrics & Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, 1E Kent Ridge Road, Singapore 119228, Singpore
| | - David Vermijlen
- Department of Pharmacotherapy and Pharmaceutics, Institute for Medical Immunology, ULB Center for Research in Immunology (U-CRI), Université Libre de Bruxelles (ULB), Brussels 1050, Belgium
| | - Ankur Sharma
- Genome Institute of Singapore (GIS), A(∗)STAR, 60 Biopolis Street, Singapore 138672, Singapore; Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, the University of Western Australia, PO Box 7214, 6 Verdun Street, Nedlands, Perth, WA 6009, Australia; Curtin Medical School, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6102, Australia
| | - Garold Fuks
- Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Ravid Straussman
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Norman Pavelka
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Benoit Malleret
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore; Department of Microbiology and Immunology, Immunology Translational Research Programme, Yong Loo Lin School of Medicine, Immunology Programme, Life Sciences Institute, National University of Singapore, Singapore 117597, Singapore
| | - Naomi McGovern
- Department of Pathology and Centre for Trophoblast Research, Tennis Court Road, Cambridge CB2 1QP, UK.
| | - Salvatore Albani
- Translational Immunology Institute, Singhealth/Duke-NUS Academic Medical Centre, the Academia, 20 College Road, Discovery Tower Level 8, Singapore 169856, Singapore.
| | - Jerry Kok Yen Chan
- Department of Reproductive Medicine, KK Women's and Children's Hospital, Singapore 229899, Singapore; Experimental Fetal Medicine Group, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; OBGYN-Academic Clinical Program, Duke-NUS, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore; Cancer and Stem Cell Biology Program, Duke-NUS Graduate Medical School, Singapore 119077, Singapore.
| | - Florent Ginhoux
- Singapore Immunology Network (SIgN), A(∗)STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore; Translational Immunology Institute, Singhealth/Duke-NUS Academic Medical Centre, the Academia, 20 College Road, Discovery Tower Level 8, Singapore 169856, Singapore; Shanghai Institute of Immunology, Shanghai JiaoTong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China.
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2
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Nejman D, Livyatan I, Fuks G, Gavert N, Zwang Y, Geller LT, Rotter-Maskowitz A, Weiser R, Mallel G, Gigi E, Meltser A, Douglas GM, Kamer I, Gopalakrishnan V, Dadosh T, Levin-Zaidman S, Avnet S, Atlan T, Cooper ZA, Arora R, Cogdill AP, Khan MAW, Ologun G, Bussi Y, Weinberger A, Lotan-Pompan M, Golani O, Perry G, Rokah M, Bahar-Shany K, Rozeman EA, Blank CU, Ronai A, Shaoul R, Amit A, Dorfman T, Kremer R, Cohen ZR, Harnof S, Siegal T, Yehuda-Shnaidman E, Gal-Yam EN, Shapira H, Baldini N, Langille MGI, Ben-Nun A, Kaufman B, Nissan A, Golan T, Dadiani M, Levanon K, Bar J, Yust-Katz S, Barshack I, Peeper DS, Raz DJ, Segal E, Wargo JA, Sandbank J, Shental N, Straussman R. The human tumor microbiome is composed of tumor type-specific intracellular bacteria. Science 2020; 368:973-980. [PMID: 32467386 DOI: 10.1126/science.aay9189] [Citation(s) in RCA: 957] [Impact Index Per Article: 239.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 01/22/2020] [Accepted: 04/14/2020] [Indexed: 12/15/2022]
Abstract
Bacteria were first detected in human tumors more than 100 years ago, but the characterization of the tumor microbiome has remained challenging because of its low biomass. We undertook a comprehensive analysis of the tumor microbiome, studying 1526 tumors and their adjacent normal tissues across seven cancer types, including breast, lung, ovary, pancreas, melanoma, bone, and brain tumors. We found that each tumor type has a distinct microbiome composition and that breast cancer has a particularly rich and diverse microbiome. The intratumor bacteria are mostly intracellular and are present in both cancer and immune cells. We also noted correlations between intratumor bacteria or their predicted functions with tumor types and subtypes, patients' smoking status, and the response to immunotherapy.
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Affiliation(s)
- Deborah Nejman
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Ilana Livyatan
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.,Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel
| | - Garold Fuks
- Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, Israel
| | - Nancy Gavert
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Yaara Zwang
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Leore T Geller
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | | | - Roi Weiser
- Division of Surgery, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel.,Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Giuseppe Mallel
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Elinor Gigi
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Arnon Meltser
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Gavin M Douglas
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada
| | - Iris Kamer
- Institute of Oncology, Sheba Medical Center, Ramat Gan, Israel
| | | | - Tali Dadosh
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, Israel
| | - Smadar Levin-Zaidman
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, Israel
| | - Sofia Avnet
- Orthopaedic Pathophysiology and Regenerative Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Tehila Atlan
- Department of Bioinformatics, Jerusalem College of Technology, Jerusalem, Israel
| | - Zachary A Cooper
- Translational Medicine, Oncology R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Reetakshi Arora
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Alexandria P Cogdill
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Md Abdul Wadud Khan
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gabriel Ologun
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yuval Bussi
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.,Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel.,Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Adina Weinberger
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.,Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel
| | - Maya Lotan-Pompan
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.,Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel
| | - Ofra Golani
- Department of Life Sciences Core Facilities, Weizmann Institute of Science, Rehovot, Israel
| | - Gili Perry
- Cancer Research Center, Sheba Medical Center, Ramat Gan, Israel
| | - Merav Rokah
- Department of Thoracic Surgery, Sheba Medical Center, Ramat Gan, Israel
| | | | - Elisa A Rozeman
- Department of Medical Oncology and Division of Molecular Oncology and Immunology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Christian U Blank
- Department of Medical Oncology and Division of Molecular Oncology and Immunology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Anat Ronai
- Pediatric Gastroenterology Institute, Rambam Medical Center, Haifa, Israel
| | - Ron Shaoul
- Pediatric Gastroenterology Institute, Rambam Medical Center, Haifa, Israel
| | - Amnon Amit
- Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.,Department of Obstetrics and Gynecology, Rambam Health Care Campus, Haifa, Israel
| | - Tatiana Dorfman
- Division of General Surgery, Rambam Health Care Campus, Haifa, Israel.,Ambulatory and Breast Surgery Service, Rambam Health Care Campus, Haifa, Israel
| | - Ran Kremer
- Department of Thoracic Surgery, Rambam Health Care Campus, Haifa, Israel
| | - Zvi R Cohen
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Department of Neurosurgery, Sheba Medical Center, Ramat Gan, Israel
| | - Sagi Harnof
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Department of Neurosurgery, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel
| | - Tali Siegal
- Neuro-Oncology Unit, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel
| | | | | | - Hagit Shapira
- Institute of Pathology, Megalab, Maccabi Healthcare Services, Rehovot, Israel
| | - Nicola Baldini
- Orthopaedic Pathophysiology and Regenerative Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Morgan G I Langille
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada.,Department of Pharmacology, Dalhousie University, Halifax, NS, Canada
| | - Alon Ben-Nun
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Department of Thoracic Surgery, Sheba Medical Center, Ramat Gan, Israel
| | - Bella Kaufman
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Institute of Oncology, Sheba Medical Center, Ramat Gan, Israel
| | - Aviram Nissan
- Department of Surgical Oncology (Surgery C), Sheba Medical Center, Ramat Gan, Israel
| | - Talia Golan
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Institute of Oncology, Sheba Medical Center, Ramat Gan, Israel
| | - Maya Dadiani
- Cancer Research Center, Sheba Medical Center, Ramat Gan, Israel
| | - Keren Levanon
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Cancer Research Center, Sheba Medical Center, Ramat Gan, Israel
| | - Jair Bar
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Institute of Oncology, Sheba Medical Center, Ramat Gan, Israel
| | - Shlomit Yust-Katz
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Neuro-Oncology Unit, Rabin Medical Center, Beilinson Hospital, Petach Tikva, Israel
| | - Iris Barshack
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.,Department of Pathology, Sheba Medical Center, Ramat Gan, Israel
| | - Daniel S Peeper
- Division of Molecular Oncology & Immunology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Dan J Raz
- Division of Thoracic Surgery, City of Hope Medical Center, Duarte, CA, USA
| | - Eran Segal
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.,Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel
| | - Jennifer A Wargo
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Judith Sandbank
- Institute of Pathology, Megalab, Maccabi Healthcare Services, Rehovot, Israel
| | - Noam Shental
- Department of Mathematics and Computer Science, The Open University of Israel, Ra'anana, Israel
| | - Ravid Straussman
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
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3
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Lev-Vachnish Y, Cadury S, Rotter-Maskowitz A, Feldman N, Roichman A, Illouz T, Varvak A, Nicola R, Madar R, Okun E. L-Lactate Promotes Adult Hippocampal Neurogenesis. Front Neurosci 2019; 13:403. [PMID: 31178678 PMCID: PMC6542996 DOI: 10.3389/fnins.2019.00403] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 04/09/2019] [Indexed: 12/13/2022] Open
Abstract
Neurogenesis, the formation of new neurons in the adult brain, is important for memory formation and extinction. One of the most studied external interventions that affect the rate of adult neurogenesis is physical exercise. Physical exercise promotes adult neurogenesis via several factors including brain-derived neurotrophic factor (BDNF) and vascular endothelial growth factor (VEGF). Here, we identified L-lactate, a physical exercise-induced metabolite, as a factor that promotes adult hippocampal neurogenesis. While prolonged exposure to L-lactate promoted neurogenesis, no beneficial effect was exerted on cognitive learning and memory. Systemic pharmacological blocking of monocarboxylate transporter 2 (MCT2), which transports L-lactate to the brain, prevented lactate-induced neurogenesis, while 3,5-dihydroxybenzoic acid (3,5-DHBA), an agonist for the lactate-receptor hydroxycarboxylic acid receptor 1 (HCAR1), did not affect adult neurogenesis. These data suggest that L-lactate partially mediates the effect of physical exercise on adult neurogenesis, but not cognition, in a MCT2-dependent manner.
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Affiliation(s)
- Yaeli Lev-Vachnish
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan, Israel.,The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.,The Paul Feder Laboratory on Alzheimer's Disease Research, Ramat Gan, Israel
| | - Sharon Cadury
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan, Israel.,The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.,The Paul Feder Laboratory on Alzheimer's Disease Research, Ramat Gan, Israel
| | - Aviva Rotter-Maskowitz
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan, Israel.,The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.,The Paul Feder Laboratory on Alzheimer's Disease Research, Ramat Gan, Israel
| | - Noa Feldman
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan, Israel.,The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.,The Paul Feder Laboratory on Alzheimer's Disease Research, Ramat Gan, Israel
| | - Asael Roichman
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Tomer Illouz
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan, Israel.,The Paul Feder Laboratory on Alzheimer's Disease Research, Ramat Gan, Israel
| | - Alexander Varvak
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Raneen Nicola
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan, Israel.,The Paul Feder Laboratory on Alzheimer's Disease Research, Ramat Gan, Israel
| | - Ravit Madar
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan, Israel.,The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.,The Paul Feder Laboratory on Alzheimer's Disease Research, Ramat Gan, Israel
| | - Eitan Okun
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan, Israel.,The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.,The Paul Feder Laboratory on Alzheimer's Disease Research, Ramat Gan, Israel
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4
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Feldman N, Rotter-Maskowitz A, Okun E. DAMPs as mediators of sterile inflammation in aging-related pathologies. Ageing Res Rev 2015; 24:29-39. [PMID: 25641058 DOI: 10.1016/j.arr.2015.01.003] [Citation(s) in RCA: 186] [Impact Index Per Article: 20.7] [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: 10/03/2014] [Revised: 12/29/2014] [Accepted: 01/19/2015] [Indexed: 12/20/2022]
Abstract
Accumulating evidence indicates that aging is associated with a chronic low-level inflammation, termed sterile-inflammation. Sterile-inflammation is a form of pathogen-free inflammation caused by mechanical trauma, ischemia, stress or environmental conditions such as ultra-violet radiation. These damage-related stimuli induce the secretion of molecular agents collectively termed danger-associated molecular patterns (DAMPs). DAMPs are recognized by virtue of specialized innate immune receptors, such as toll-like receptors (TLRs) and NOD-like receptor family, pyrin domain containing 3 (NLRP3). These receptors initiate signal transduction pathways, which typically drive inflammation in response to microbe-associated molecular patterns (MAMPs) and/or DAMPs. This review summarizes the current knowledge on DAMPs-mediated sterile-inflammation, its associated downstream signaling, and discusses the possibility that DAMPs activating TLRs or NLRP3 complex mediate sterile inflammation during aging and in aging-related pathologies.
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Affiliation(s)
- Noa Feldman
- The Mina and Everard Goodman Faculty of Life Sciences, The Gonda Multidisciplinary Brain Research Center, Bar Ilan University, Ramat-Gan 5290002, Israel
| | - Aviva Rotter-Maskowitz
- The Mina and Everard Goodman Faculty of Life Sciences, The Gonda Multidisciplinary Brain Research Center, Bar Ilan University, Ramat-Gan 5290002, Israel
| | - Eitan Okun
- The Mina and Everard Goodman Faculty of Life Sciences, The Gonda Multidisciplinary Brain Research Center, Bar Ilan University, Ramat-Gan 5290002, Israel.
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