Tania Watts | |
---|---|
Alma mater | University of Alberta |
Known for | Adaptive Immunity Research |
Awards | Distinguished Fellow AAI 2022 Reynolds Award CSI 2018 |
Scientific career | |
Fields | Immunology |
Institutions | Stanford University University of Toronto |
Thesis | Structure and assembly of pili isolated from Pseudomonas aeruginosa strains PAK and PAO |
Doctoral advisor | William Paranchych |
Tania H. Watts (born 1957) is a Canadian Immunologist, Professor at the University of Toronto, [1] past President of the Canadian Society for Immunology and from 2009 to 2019 held the Sanofi Pasteur Chair in Human Immunology at the University of Toronto. [2] Tania Watts holds a Tier 1 Canada Research Chair in Anti-viral Immunity (2021- ) and was named a Distinguished Fellow of the American Association of Immunologists, class of 2022.
Watts studied at the University of Alberta where she obtained her Bachelor and PhD degrees in Biochemistry. [3] Her graduate supervisor was William Paranchych. [2] She was supported during her graduate work by an MRC Studentship. [4]
Watts' graduate research examined the structure and assembly of pili from Pseudomonas aeruginosa.
Her post-doctoral work at Stanford University with Professor Harden McConnell demonstrated the immunological effect of antigen presentation in lipid bilayers and led to her interest in T cells and immunity. [2]
Watts is Professor of Immunology at the University of Toronto. [1] Her group was among the first to provide evidence for CD28-independent co-stimulation. [5] Watts held the Sanofi Pasteur Chair in Human Immunology at the University of Toronto from 2009 to 2019. [2] [6] She is co-director of the Faculty of Medicine Flow Cytometry facility. [7]
Watts is an active organizer in the Immunology community. She is a founder the Toronto Human Immunology Network, past President (2009–2011) of the Canadian Society for Immunology, and has organized international symposia. [3] [2]
Watts was a member of Ontario's COVID-19 Science Advisory Table until its dissolution in September 2022. [8]
Watts used biophysical techniques to study the properties of pili isolated from Pseudomonas aeruginosa strain PAO and PAK for her doctoral work. [4] [9]
Watts' post-doctoral research encompassed biochemical methods and the microscopy techniques TIRF (Total Internal Reflection Fluorescence) and FRET (Fluorescence Resonance Energy Transfer). Her work showed that CD4+ T cells could be activated to secrete Interleukin 2 by a lipid bilayer containing MHC II and peptide antigens, and that MHC II, peptide antigens and T-cell Receptor form a ternary complex. [10] [11]
Watts' laboratory at the University of Toronto continues her immunology research, with a focus on T cells, adaptive immunity and infectious diseases. [1] Her group examines how different TNF Receptor family members (TNFR) contribute to survival of lymphocytes to control viral infections. [12] Her studies also demonstrate how TNFR activation contributes to inflammation and cancer. [6]
Watts has applied her expertise in immunology to study the persistence of immunity to SARS-CoV-2 [13] and the effectiveness of vaccines against SARS-CoV-2 in individuals affected by immune-mediated inflammatory diseases. [14]
In immunology, an antigen (Ag) is a molecule, moiety, foreign particulate matter, or an allergen, such as pollen, that can bind to a specific antibody or T-cell receptor. The presence of antigens in the body may trigger an immune response.
MHC class I molecules are one of two primary classes of major histocompatibility complex (MHC) molecules and are found on the cell surface of all nucleated cells in the bodies of vertebrates. They also occur on platelets, but not on red blood cells. Their function is to display peptide fragments of proteins from within the cell to cytotoxic T cells; this will trigger an immediate response from the immune system against a particular non-self antigen displayed with the help of an MHC class I protein. Because MHC class I molecules present peptides derived from cytosolic proteins, the pathway of MHC class I presentation is often called cytosolic or endogenous pathway.
In molecular biology, the Signal Peptide Peptidase (SPP) is a type of protein that specifically cleaves parts of other proteins. It is an intramembrane aspartyl protease with the conserved active site motifs 'YD' and 'GxGD' in adjacent transmembrane domains (TMDs). Its sequences is highly conserved in different vertebrate species. SPP cleaves remnant signal peptides left behind in membrane by the action of signal peptidase and also plays key roles in immune surveillance and the maturation of certain viral proteins.
Ellen Heber-Katz is an American immunologist and regeneration biologist who works as a professor at Lankenau Institute for Medical Research (LIMR). She discovered that the Murphy Roths Large (MRL) mouse strain can regenerate wounds without scarring and fully restore damaged tissue. Her research focuses on immunology, regenerative medicine, and cancer. In July 2015, she expanded her research to include studies funded by the National Cancer Institute (NCI) that investigate novel aspects of breast cancer causation.
Tumor necrosis factor receptor superfamily, member 4 (TNFRSF4), also known as CD134 and OX40 receptor, is a member of the TNFR-superfamily of receptors which is not constitutively expressed on resting naïve T cells, unlike CD28. OX40 is a secondary co-stimulatory immune checkpoint molecule, expressed after 24 to 72 hours following activation; its ligand, OX40L, is also not expressed on resting antigen presenting cells, but is following their activation. Expression of OX40 is dependent on full activation of the T cell; without CD28, expression of OX40 is delayed and of fourfold lower levels.
Tumor necrosis factor ligand superfamily member 9 also known as 4-1BB ligand or 4-1BBL or CD137L is a protein that in humans is encoded by the TNFSF9 gene.
In immunology, peripheral tolerance is the second branch of immunological tolerance, after central tolerance. It takes place in the immune periphery. Its main purpose is to ensure that self-reactive T and B cells which escaped central tolerance do not cause autoimmune disease. Peripheral tolerance can also serve a purpose in preventing an immune response to harmless food antigens and allergens.
Michael R. Gold is a Canadian immunologist and cell biologist. He has served as head of the Department of Microbiology and Immunology at the University of British Columbia since July 2009. He is known for his discovery of how B-cell receptor stimulates Tyrosine phosphorylation and work in the signaling cascade of B-cell receptor.
Akiko Iwasaki is a Sterling Professor of Immunobiology and Molecular, Cellular and Developmental Biology at Yale University. She is also a principal investigator at the Howard Hughes Medical Institute. Her research interests include innate immunity, autophagy, inflammasomes, sexually transmitted infections, herpes simplex virus, human papillomavirus, respiratory virus infections, influenza infection, T cell immunity, commensal bacteria, COVID-19, and long COVID.
Twitching motility is a form of crawling bacterial motility used to move over surfaces. Twitching is mediated by the activity of hair-like filaments called type IV pili which extend from the cell's exterior, bind to surrounding solid substrates, and retract, pulling the cell forwards in a manner similar to the action of a grappling hook. The name twitching motility is derived from the characteristic jerky and irregular motions of individual cells when viewed under the microscope. It has been observed in many bacterial species, but is most well studied in Pseudomonas aeruginosa, Neisseria gonorrhoeae and Myxococcus xanthus. Active movement mediated by the twitching system has been shown to be an important component of the pathogenic mechanisms of several species.
Robert Ernest William Hancock is a Canadian microbiologist and University of British Columbia Killam Professor of Microbiology and Immunology, an Associate Faculty Member of the Wellcome Trust Sanger Institute, and a Canada Research Chair in Health and Genomics.
Alessandro Sette is an Italian immunologist. He was born on August 11, 1960, in Rome, Italy, to Pietro Sette, a prominent Italian businessman and politician, and Renata Sette. Sette is a professor at La Jolla Institute for Immunology (LJI). He is an adjunct professor at the University of California, San Diego. Sette studies the specific epitopes that the immune system recognizes in cancer, autoimmunity, allergy, and infectious diseases.
Gillian Elizabeth Wu is a Canadian Immunologist and the former Dean of Pure and Applied Science at York University. She is currently Professor Emerita in York University's Faculty of Science and Faculty of Health and also at the University of Toronto Faculty of Medicine.
Jean Sylvia Marshall, born in Birmingham, England, is a Canadian immunologist and acting Professor and Head of the Department of Microbiology & Immunology at Dalhousie University in Halifax, Nova Scotia, Canada. Marshall's work has investigated how mast cells are involved in the early immune response to infection and antigen. She is best known for her discovery of the previously unknown degranulation-independent immunoregulatory roles of mast cells in infection and allergy and their ability to mobilize dendritic cells.
Carol Shoshkes Reiss, an American viral immunologist, was a professor at New York University's Department of Biology between 1991 and 2020. She is currently a professor emerita at New York University. Her research focused on the dynamic contest between the mouse immune system and virus replication during central nervous system infection. Reiss was editor-in-chief of the journal Viral Immunology (2000–2006) and is currently editor-in-chief of the journal DNA and Cell Biology (2012–present).
Bernhard "Hardi" Cinader was a Canadian Immunologist and Professor in the Department of Immunology at the University of Toronto. He was inaugural president of the Canadian Society for Immunology (1966-1969) and the International Union of Immunological Societies (1969-1974).
Rosemary Jane Boyton is a British immunologist who is Head of Lung Immunology and Adult Infectious Disease at Imperial College London. She works on the molecular immunology of infectious, allergic and autoimmune inflammation. She holds an honorary consultant position at the Royal Brompton Hospital, where she specialises in lung infection.
Eleanor N. Fish is a Canadian immunologist who is a Professor of Immunology at the University of Toronto. Her research considers how cytokines and chemokines interact with receptors in cells and tissue. During the COVID-19 pandemic, Fish tested interferon-alpha as a treatment for coronavirus disease.
Pamela Sumiko Ohashi, PhD, FRSC is a Canadian medical researcher. She is co-director of the Campbell Family Institute for Breast Cancer Research, director of the Cancer Immune Therapy Program at the Princess Margaret Cancer Centre and a professor at the University of Toronto.
Freda Kathryn Stevenson is a British immunologist and Professor at the University of Southampton. She was elected a Fellow of the Academy of Medical Sciences in 2000, and was the first British researcher to be awarded the American Society of Hematology Henry M. Stratton Medal.