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Regulatory T Cells (Tregs): Frequently Asked Questions
BD Biosciences Technical Resources Page 1 December 2010 Regulatory T Cells (Tregs): Frequently Asked Questions What are the differences between natural Tregs and inducible Tregs? Natural Tregs (nTregs) originate from the thymus as CD4+CD25+ cells together with expression of the transcription factor FoxP3 and aren’t really influenced by the cytokine milieu. Natural Tregs represent approximately 5–10% of the total CD4+ T-cell population. They are thought to be positively selected during thymic selection, with a relatively high avidity for self-antigens. The signal to develop into Tregs is thought to come from interactions between the T-cell receptor and the complexes of MHC II with self-peptide expressed on the thymic stroma and is observed at the single-positive stage of T-lymphocyte development. On the other hand, inducible Tregs (iTregs) originate as CD4 single-positive cells from the thymus, and following adequate antigenic stimulation in the presence of cognate antigen and specialized immunoregulatory cytokines such as TGF-β, IL-10, and IL-4, differentiate into CD25+ and FoxP3+ expressing Tregs—hence called “adaptive” or “inducible” Tregs. Adaptive or inducible T cells are further categorized into Tr1, Th2, or Tr3 depending on the cytokines that modulate them.1,2 Are there any differences between mouse and human CD4+ Tregs? Yes there are. In mice, CD4+ Tregs are a homogenous population, in which all CD4+ and CD25+ cells are regulatory T cells. In humans, the Tregs are a heterogeneous population, in which not all CD25+ cells are Tregs. This was first observed by a detailed analysis of human CD4+CD25+ populations by groups at Harvard and the Royal Free and University College Medical School in London.3,4 Studies revealed that only those CD4+ cells that expressed very high levels of CD25, representing approximately 2–3% of total CD4 T cells, demonstrate the in vitro suppressive activity similar to that described in murine cells. -
Donor-Alloantigen-Reactive Regulatory T Cell Therapy in Liver
Confidential Page 1 of 80 Donor-Alloantigen-Reactive Regulatory T Cell Therapy in Liver Transplantation Version 7.0/ August 1, 2018 IND# 15479 Study Sponsor(s): The National Institute of Allergy and Infectious Diseases (NIAID) Grant #: R34AI095135 and U01AI110658-01 Study Drug Manufacturer/Provider: Sanofi US PRINCIPAL INVESTIGATOR CO- PRINCIPAL INVESTIGATOR CO- PRINCIPAL INVESTIGATOR SANDY FENG, MD, PHD JEFFREY BLUESTONE, PHD SANG-MO KANG, MD, FACS Professor of Surgery Executive Vice Chancellor and Provost Associate Professor Director, Abdominal Transplant A.W. Clausen Distinguished Professor University of California, San Surgery Fellowship in Medicine Francisco University of California, San University of California, San Francisco 513 Parnassus Ave. Francisco 513 Parnassus Ave. Box 0780, HSE-520 505 Parnassus Ave. Box 0400, HSW-1128 San Francisco, CA 94143-0780 Box 0780, M-896 San Francisco, CA 94143-0780 Phone: (415) 353-1888 San Francisco, CA 94143-0780 Phone: (415) 476-4451 E-mail: Sang- Phone: (415) 353-8725 Fax: (415) 476-9634 [email protected] Fax: (415) 353-8709 E-mail: [email protected] E-mail: [email protected] CO- PRINCIPAL INVESTIGATOR BIOSTATISTICIAN MEDICAL OFFICER QIZHI TANG, PHD DAVID IKLÉ, PHD NANCY BRIDGES, MD Associate Professor Senior Statistical Scientist Chief, Transplantation Branch Director, UCSF Transplantation Rho, Inc. Division of Allergy, Immunology, Research Lab 6330 Quadrangle Drive and Transplantation University of California, San Chapel Hill, NC 27517 NIAID Francisco Phone: (910) 558-6678 -
2823.Full.Pdf
Report on the 2018 Cancer, Autoimmunity, and Immunology Conference Colleen S. Curran, Connie L. Sommers, Howard A. Young, Katarzyna Bourcier, Marie Mancini and Elad Sharon This information is current as of September 28, 2021. J Immunol 2019; 202:2823-2828; Prepublished online 15 April 2019; doi: 10.4049/jimmunol.1900264 http://www.jimmunol.org/content/202/10/2823 Downloaded from References This article cites 15 articles, 6 of which you can access for free at: http://www.jimmunol.org/content/202/10/2823.full#ref-list-1 http://www.jimmunol.org/ Why The JI? Submit online. • Rapid Reviews! 30 days* from submission to initial decision • No Triage! Every submission reviewed by practicing scientists • Fast Publication! 4 weeks from acceptance to publication by guest on September 28, 2021 *average Subscription Information about subscribing to The Journal of Immunology is online at: http://jimmunol.org/subscription Permissions Submit copyright permission requests at: http://www.aai.org/About/Publications/JI/copyright.html Email Alerts Receive free email-alerts when new articles cite this article. Sign up at: http://jimmunol.org/alerts The Journal of Immunology is published twice each month by The American Association of Immunologists, Inc., 1451 Rockville Pike, Suite 650, Rockville, MD 20852 All rights reserved. Print ISSN: 0022-1767 Online ISSN: 1550-6606. Report on the 2018 Cancer, Autoimmunity, and Immunology Conference † ‡ x Colleen S. Curran,*{ Connie L. Sommers,‖ Howard A. Young, Katarzyna Bourcier, Marie Mancini, and Elad Sharon With the increased use of cancer immunotherapy, a immune-related adverse events (irAEs) that accompany cancer number of immune-related adverse events (irAEs) are immunotherapy. -
Safety and Efficacy of Imatinib for Preserving Beta-Cell Function in New- Onset Type 1 Diabetes Mellitus
Safety and Efficacy of Imatinib for Preserving Beta-cell Function in New- onset Type 1 Diabetes Mellitus Version:8.0 August 23, 2016 IND # 117,644 Sponsored by the Juvenile Diabetes Research Foundation International (JDRF). CONFIDENTIAL Page 1 SAFETY AND EFFICACY OF IMATINIB FOR PRESERVING BETA-CELL FUNCTION IN NEW-ONSET TYPE 1 DIABETES MELLITUS Version 7.0 ( January 29, 2016) IND # 117,644 Protocol Co-Chair Protocol Co-Chair Jeffrey A. Bluestone, Ph.D. Stephen E. Gitelman, MD Professor of Medicine, Pathology, Professor of Clinical Pediatrics Microbiology & Immunology Department of Pediatrics University of California, San Francisco University of California, San Francisco Campus Box 0540 Room S-679, Campus Box 0434 513 Parnassus Avenue 513 Parnassus Avenue San Francisco, CA 94143 San Francisco, CA 94143 Tel: 415-514-1683 Fax: 415-564-5813 Tel: 415-476-3748 Fax: 415-476-8214 Email: [email protected] Email: [email protected] This clinical study is supported by JDRF and conducted by the University of California, San Francisco. This document is confidential. It is provided for review only to investigators, potential investigators, consultants, study staff, and applicable independent ethics committees or institutional review boards. It is understood that the contents of this document will not be disclosed to others without written authorization from the study sponsor unless it is necessary to obtain informed consent from potential study participants. Imatinib in New-onset T1DM Protocol Final Version 8.0 August 23, 2016 CONFIDENTIAL Page 2 Protocol Approval Trial ID: Protocol Version: 8.0 Dated: August 23, 2016 IND # 117,644 Protocol Chairs: Jeffrey Bluestone, PhD and Stephen Gitelman, MD Title: Safety and Efficacy of Imatinib for Preserving ß-cell Function in New-onset Type 1 Diabetes Mellitus I confirm that I have read the above protocol in the latest version. -
Cancer-Immunotherapy-Article.Pdf
Corrected 26 March 2018. See full text. CANCER IMMUNOTHERAPY REVIEW toxicities resulting from tissue-specific inflam- mation (4, 5). The most common of these toxic- ities included enterocolitis, inflammatory hepatitis, and dermatitis. Algorithmic use of corticoste- Cancer immunotherapy using roidsorotherformsofimmunesuppressionreadily controlled these symptoms without any appar- checkpoint blockade ent loss of antitumor activity (6). However, less frequent adverse events also included inflamma- Antoni Ribas1* and Jedd D. Wolchok2,3* tion of the thyroid, pituitary, and adrenal glands, with the need for lifelong hormone replacement. The release of negative regulators of immune activation (immune checkpoints) that Clinical activity of CTLA-4 blockade was most limit antitumor responses has resulted in unprecedented rates of long-lasting apparent in patients with advanced metastatic tumor responses in patients with a variety of cancers. This can be achieved by antibodies melanoma, with a 15% rate of objective radio- blocking the cytotoxic T lymphocyte–associated protein 4 (CTLA-4) or the programmed graphic response that has been durable in some cell death 1 (PD-1) pathway, either alone or in combination. The main premise for patients for >10 years since stopping therapy inducing an immune response is the preexistence of antitumor T cells that were limited (7, 8). The patterns of clinical response shown by by specific immune checkpoints. Most patients who have tumor responses maintain radiographic imaging after ipilimumab were some- long-lasting disease control, yet one-third of patients relapse. Mechanisms of acquired times distinct from those associated with therapies resistance are currently poorly understood, but evidence points to alterations that have more direct antiproliferative mecha- that converge on the antigen presentation and interferon-g signaling pathways. -
AST 2015 Achievement Award and Grant Press Release
FOR IMMEDIATE RELEASE Media Contact: Cate Girone 856-793-0796 [email protected] THE AMERICAN SOCIETY OF TRANSPLANTATION ANNOUNCES 2015 ACHIEVEMENT AWARD AND GRANT RECIPIENTS The American Society of Transplantation (AST) announced the recipients of the 2015 Achievement Awards and the Faculty and Fellowship Grants at the recent American Transplant Congress (ATC) in Philadelphia. The recipients were selected for their achievements and contributions to the AST and to the field of transplantation. “This year’s award recipients are an inspiring group of transplantation professionals. They have been selected by their peers for the transformative role they have each played in shaping our field,” said AST President Dr. James Allan. “We applaud them for their dedication and success.” AST Achievement Awards AST Senior Achievement in Clinical Transplantation Award – Gabriel Danovitch, MD, David Geffen School of Medicine at UCLA Dr. Danovitch has contributed more than three decades of service to the field of transplantation and nephrology. He is a world-renowned transplant physician whose work spans the entire spectrum of clinical activities in transplantation, from innovative research to superb patient care. AST Mentoring Award – Jeffrey Bluestone, PhD, Diabetes Center at University of California, San Francisco Dr. Bluestone has mentored over eighty students, post-doctoral fellows, and research associates. Thirty of his trainees have gone on to become university-based academicians throughout the United States and abroad. Several of his trainees have become transplantation professionals with leadership positions in the AST, including Dr. Kenneth Newell, immediate past-president. AST Transplant Advocacy Award – William Applegate, Bryan Cave LLP Currently the Senior Vice President of Bryan Cave LLP and Director of Government Relations, Mr. -
Regulatory T Cells: Essential Regulators of the Immune System
Regulatory T Cells: Essential Regulators of the Immune System Tools for the identification, isolation, and multicolor analysis of human regulatory T cells CD4+ CD8+ CD4+ CD45RO+ An tige + n Sti CD25 mulation FoxP3- CD4+ CD4+ Memory T Cell CD25high Naïve T Cell FoxP3+ CD4+ CD25- FoxP3- Natural Treg β + IL-10 CD4 and/or TGF Induced Treg CD25low Th17 FoxP3+ low + CD25 CD4 CD25low CD4+ CD25high Th2 CD4+ Th1 A proven commitment to regulatory T cell research As evidence of the immunosuppressive potential of T cells has developed in recent years, interest in Regulatory T cells (Tregs) and enthusiasm for their potential therapeutic application has intensified. Thus Treg research is very active, and new publications emerge almost daily. Today the most commonly used markers for Treg identification, isolation, and characterization are CD4, CD25, CD127, and FoxP3. However, new targets with functional significance such as CD39, CD45RA, CTLA-4, and others are rapidly emerging. For over 20 years, BD Biosciences has actively supported groundbreaking research in the field. With a rich portfolio of high quality immunology products, BD Pharmingen™ brand reagents support both established markers as well as emerging trends in this dynamic envi- ronment. With new discoveries about the role of proteins in Tregs, many existing markers gain new utility. This proven commitment to help advance discovery in Treg research is the foundation of BD Biosciences ongoing efforts to provide a full range of tools to simplify the identification, isolation and characterization of Treg cells and their interacting partners. BD Biosciences reagents are backed by a world-class service and support organization to help customers take full advantage of our products to advance their research. -
Final Program
June 25-28, chicago, illinois Spotlight on Translational Immunology Scientific Program Create Your Masterpiece Alexa Fluor® 594 anti-Ki-67 Direct Antibody Conjugates for Multicolor Microscopy For multicolor uorescence microscopy, bright uorescence with little background is critical for speci c detection of antigens. Furthermore, directly labeled antibodies are essential for multicolor microscopy. BioLegend now introduces our line of antibodies directly conjugated to Alexa Fluor® 594, a bright, stable uorophore emitting into the red range of the color spectrum, ideal for imaging applications. Brilliant Violet 421™ is an exceptionally bright and photostable uorescent polymer well- suited for microscopy applications. BioLegend has over 100 IHC HeLa cells were xed, permeabilized, and blocked, then intracellularly stained with Ki-67 (clone Ki-67) Alexa Fluor® 594 (red) and Alexa Fluor® 488 or IF suitable clones conjugated to Brilliant Violet™, Alexa Fluor®, Phalloidin (green). Nuclei were counterstained with DAPI (blue). The image and DyLight®, including secondary antibodies and streptavidin. was captured with 40x objective. Learn more: biolegend.com/AF594 Alexa Fluor® is a trademark of Life Technologies Corporation. Brilliant Violet 421™ is a trademark of Sirigen Group Ltd. biolegend.com/brilliantviolet DyLight® is a trademark of Thermo Fisher Scienti c Inc. and its subsidiaries. BioLegend is ISO 9001:2008 and ISO 13485:2003 Certi ed Toll-Free Tel: (US & Canada): 1.877.BIOLEGEND (246.5343) Tel: 858.768.5800 biolegend.com 08-0040-03 2 World-Class Quality | Superior Customer Support | Outstanding Value 08-0040-03.indd 1 5/13/14 8:54 AM Spotlight on Translational Immunology Dear Colleagues, Welcome to the 14th annual meeting of the Federation of Clinical Immunology Societies, FOCIS 2014. -
National Cancer Advisory Board Blue Ribbon Panel Roster
June 2016 NATIONAL INSTITUTES OF HEALTH NATIONAL CANCER INSTITUTE NATIONAL CANCER ADVISORY BOARD BLUE RIBBON PANEL CO-CHAIRS Tyler E. Jacks, Ph.D. Director Koch Institute for Integrative Cancer Research David H. Koch Professor of Biology Massachusetts Institute of Technology Cambridge, MA Elizabeth M. Jaffee, M.D. Deputy Director The Sidney Kimmel Comprehensive Cancer Center The Dana and Albert “Cubby” Broccoli Professor of Oncology Co-Director, Skip Viragh Center for Pancreas Cancer The Johns Hopkins University Baltimore, MD Dinah S. Singer, Ph.D. Acting Deputy Director Director, Division of Cancer Biology National Cancer Institute National Institutes of Health Bethesda, MD MEMBERS Peter C. Adamson, M.D. Mary C. Beckerle, Ph.D. Chair, Children's Oncology Group Ralph E. and Willia T. Main Presidential Professor Alan R. Cohen Endowed Chair in Pediatrics Chief Executive Officer and Director The Children's Hospital of Philadelphia Huntsman Cancer Institute Philadelphia, PA Associate Vice President of Cancer Affairs Distinguished Professor of Biology James P. Allison, Ph.D. University of Utah Chairman of Immunology Salt Lake City, UT Department of Immunology The University of Texas Mitchel S. Berger, M.D. MD Anderson Cancer Center Professor and Chair Houston, TX Department of Neurological Surgery University of California, San Francisco San Francisco, CA David F. Arons, J.D. Chief Executive Officer Jeffrey Bluestone, Ph.D. National Brain Tumor Society A.W. and Mary Margaret Clausen Distinguished Newton, MA Professor Director, Hormone Research Institute Emeritus Executive Vice Chancellor and Provost University of California, San Francisco San Francisco, CA June 2016 Chi V. Dang, M.D., Ph.D. Lifang Hou, MD., MS, Ph.D Professor of Medicine Associate Professor Division of Hematology-Oncology Chief, Division of Cancer Epidemiology and Department of Medicine Prevention Director, Abramson Cancer Center Department of Preventive Medicine & Co-Director, International Relations Director, Abramson Cancer Research Institute Robert H. -
Powerful Connections CHAIRMAN’S MESSAGE
powerful connections CHAIRMAN’S MESSAGE I am delighted to present to you the 2017 Department of Medicine Annual Report entitled table of contents “Powerful Connections”. Connections that bridge our programs and people are so important to enhancing our missions of discovery, innovative patient care and mentorship. Connections are fun- damental to science and medicine. Across departments scientists connect scientific findings from bench to bedside and back with the goal of improving patient outcomes and developing better ther- apies, and our medical educators channel their knowledge to our trainees to enhance the learning environment and prepare them for their academic careers. Chair’s message 1 Cardiology 14 Some examples from the last year include: • The appointment of four new administrative Clinically, the Department of Medicine continued Organization 2 Computational Biomedicine • The discovery that the onset of Celiac disease leaders, Matthew Sorrentino, MD as Vice Chair to impact patient care with new initiatives and and Biomedical Data Science 16 could be triggered by prior Reovirus infection for Clinical Operations, Steven White, MD as connections in the community, city, and region. Medicine by the Numbers 3 (Jabri) Associate Vice Chair for Appointments and This included the expansion of the Department’s Dermatology 18 Promotions, Anne Sperling, PhD as Associate clinical imprint at the University of Chicago Special Awards 4 • The preclinical development of novel approach- Vice Chair for Research and Julie White as Medicine’s new offsite practices in Orland Park Emergency Medicine 20 es to prostate cancer immunotherapy using a Executive Administrator and Chicago’s South Loop, at Ingalls Hospital Faculty Highlights 6 tyrosine kinase inhibitor to infiltrate and clear the as well as at satellite clinics in Indiana. -
TCR-Transgenic T Cells + Than B7.2 in the Activation of Naive CD8 B7.1 Is a Quantitatively Stronger Costimulus
B7.1 Is a Quantitatively Stronger Costimulus Than B7.2 in the Activation of Naive CD8 + TCR-Transgenic T Cells This information is current as Patrick E. Fields, Rosalynde J. Finch, Gary S. Gray, Richard of September 28, 2021. Zollner, Jenifer L. Thomas, Knut Sturmhoefel, Kwan Lee, Stanley Wolf, Thomas F. Gajewski and Frank W. Fitch J Immunol 1998; 161:5268-5275; ; http://www.jimmunol.org/content/161/10/5268 Downloaded from References This article cites 33 articles, 19 of which you can access for free at: http://www.jimmunol.org/content/161/10/5268.full#ref-list-1 http://www.jimmunol.org/ Why The JI? Submit online. • Rapid Reviews! 30 days* from submission to initial decision • No Triage! Every submission reviewed by practicing scientists • Fast Publication! 4 weeks from acceptance to publication by guest on September 28, 2021 *average Subscription Information about subscribing to The Journal of Immunology is online at: http://jimmunol.org/subscription Permissions Submit copyright permission requests at: http://www.aai.org/About/Publications/JI/copyright.html Email Alerts Receive free email-alerts when new articles cite this article. Sign up at: http://jimmunol.org/alerts The Journal of Immunology is published twice each month by The American Association of Immunologists, Inc., 1451 Rockville Pike, Suite 650, Rockville, MD 20852 Copyright © 1998 by The American Association of Immunologists All rights reserved. Print ISSN: 0022-1767 Online ISSN: 1550-6606. B7.1 Is a Quantitatively Stronger Costimulus Than B7.2 in the Activation of Naive CD81 TCR-Transgenic T Cells1 Patrick E. Fields,* Rosalynde J. Finch,‡ Gary S. -
The American Association of Immunologists Oral History Project
The American Association of Immunologists Oral History Project Transcript Rafi Ahmed, Ph.D. May 5, 2015 New Orleans, LA Interview conducted by Brien Williams, Ph.D. Transcription: TechniType Transcripts Transcript copy editors: John S. Emrich, Ph.D., and Charles L. Richter, M.A. Final edit by: John S. Emrich, Ph.D. © 2016 The American Association of Immunologists, Inc. Publicly released transcripts of The American Association of Immunologists, Inc. (AAI) Oral History Project are freely available for non-commercial use according to the Fair Use provisions of the United States Copyright Code and International Copyright Law. Advance written permission is required for reproduction, redistribution, and extensive quotation or excerpting. Permission requests should be made to: The American Association of Immunologists, 1451 Rockville Pike, Suite 650, Rockville, MD 20852. To cite an interview, please use the following general format: [Name of interviewee], interview by [name of interviewer], [date], The American Association of Immunologists Oral History Project. http://www.aai.org/OHP (accessed [date]). Williams: This is an interview with Dr. Rafi Ahmed for the American Association of Immunologists (AAI) Oral History Project. Dr. Ahmed is Director of the Emory Vaccine Center at Emory University. He is also the Charles Howard Candler Professor of Microbiology and Immunology at Emory, and Georgia Research Alliance Eminent Scholar in Vaccine Research, and professor of microbiology and immunology at Emory at the School of Medicine. He was awarded the AAI Excellence in Mentoring Award in 2015. We are at the IMMUNOLOGY 2015™ in New Orleans, Louisiana. Today is Monday, May 11th, and I am Brien Williams. Thank you very much for dropping by.