Maria Grazia Roncarolo | |
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Born | |
Alma mater | University of Turin |
Scientific career | |
Institutions | Stanford University |
Maria Grazia Roncarolo (born 17 December 1954) is an Italian pediatrician who is currently George D. Smith Professor in Stem Cell and Regenerative Medicine and Professor of Medicine (Blood and Marrow Transplantation and Cellular Therapy) at Stanford University. [1] She is also the Director of the Stanford Institute of Stem Cell Biology and Regenerative Medicine along with Irving Weissman and Michael Longaker and the Director for Center for Definitive and Curative Medicine at Stanford. [2]
She was educated at the University of Turin. [1] She is a past President of the Federation of Clinical Immunology Societies, [3] and is a member of the Austrian Academy of Sciences. [4] She is an academic founder of Graphite Bio. [5] She has an h-index of 91. [6]
Roncarolo is well known for identifying a peripheral subset of regulatory T cells, called type 1 regulatory T (Tr1) cells. Her team was the first to describe Tr1 cells [12] while at DNAX Research Institute of Molecular and Cellular Biology, which was later acquired by Schering-Plough and now a part of Merck. She was the principal investigator of the first clinical trial using Tr1 cells that are generated ex vivo to treat graft-versus-host disease in leukemia patients receiving a haploidentical haematopoietic stem cell transplant [13] and is the principal investigator of an additional clinical trial utilizing these cells in the United States. [14]
Roncarolo has made major contributions in the field of cell and gene therapy. She performed fetal stem cell transplants given before birth [15] to treat inherited diseases of the immune system such as Wiskott-Aldrich Syndrome [16] She led the first stem cell-based gene therapy trial for patients with adenosine deaminase-severe combined immunodeficiency. [17] The clinical trial results led to the European Commission approval. [18] The therapy was licensed to GlaxoSmithKline and is marketed under the name Strimvelis, making it the first commercially approved ex vivo gene therapy in Europe. [19]
Gene therapy is a medical technology that aims to produce a therapeutic effect through the manipulation of gene expression or through altering the biological properties of living cells.
Severe combined immunodeficiency (SCID), also known as Swiss-type agammaglobulinemia, is a rare genetic disorder characterized by the disturbed development of functional T cells and B cells caused by numerous genetic mutations that result in differing clinical presentations. SCID involves defective antibody response due to either direct involvement with B lymphocytes or through improper B lymphocyte activation due to non-functional T-helper cells. Consequently, both "arms" of the adaptive immune system are impaired due to a defect in one of several possible genes. SCID is the most severe form of primary immunodeficiencies, and there are now at least nine different known genes in which mutations lead to a form of SCID. It is also known as the bubble boy disease and bubble baby disease because its victims are extremely vulnerable to infectious diseases and some of them, such as David Vetter, have become famous for living in a sterile environment. SCID is the result of an immune system so highly compromised that it is considered almost absent.
Adenosine deaminase deficiency is a metabolic disorder that causes immunodeficiency. It is caused by mutations in the ADA gene. It accounts for about 10–20% of all cases of autosomal recessive forms of severe combined immunodeficiency (SCID) after excluding disorders related to inbreeding.
Wiskott–Aldrich syndrome (WAS) is a rare X-linked recessive disease characterized by eczema, thrombocytopenia, immune deficiency, and bloody diarrhea. It is also sometimes called the eczema-thrombocytopenia-immunodeficiency syndrome in keeping with Aldrich's original description in 1954. The WAS-related disorders of X-linked thrombocytopenia (XLT) and X-linked congenital neutropenia (XLN) may present with similar but less severe symptoms and are caused by mutations of the same gene.
Cell therapy is a therapy in which viable cells are injected, grafted or implanted into a patient in order to effectuate a medicinal effect, for example, by transplanting T-cells capable of fighting cancer cells via cell-mediated immunity in the course of immunotherapy, or grafting stem cells to regenerate diseased tissues.
Enzyme replacement therapy (ERT) is a medical treatment which replaces an enzyme that is deficient or absent in the body. Usually, this is done by giving the patient an intravenous (IV) infusion of a solution containing the enzyme.
Immunodysregulation polyendocrinopathy enteropathy X-linked syndrome is a rare autoimmune disease. It is one of the autoimmune polyendocrine syndromes. Most often, IPEX presents with autoimmune enteropathy, dermatitis (eczema), and autoimmune endocrinopathy, but other presentations exist.
X-linked severe combined immunodeficiency (X-SCID) is an immunodeficiency disorder in which the body produces very few T cells and NK cells.
Primary immunodeficiencies are disorders in which part of the body's immune system is missing or does not function normally. To be considered a primary immunodeficiency (PID), the immune deficiency must be inborn, not caused by secondary factors such as other disease, drug treatment, or environmental exposure to toxins. Most primary immunodeficiencies are genetic disorders; the majority are diagnosed in children under the age of one, although milder forms may not be recognized until adulthood. While there are over 430 recognized inborn errors of immunity (IEIs) as of 2019, the vast majority of which are PIDs, most are very rare. About 1 in 500 people in the United States are born with a primary immunodeficiency. Immune deficiencies can result in persistent or recurring infections, auto-inflammatory disorders, tumors, and disorders of various organs. There are currently limited treatments available for these conditions; most are specific to a particular type of PID. Research is currently evaluating the use of stem cell transplants (HSCT) and experimental gene therapies as avenues for treatment in limited subsets of PIDs.
Hans Dieter Ochs, is an immunologist and pediatrician. He is Professor of Pediatrics, Division of Immunology, Department of Pediatrics, University of Washington School of Medicine, Seattle.
In 1992 Doctor Claudio Bordignon working at the Vita-Salute San Raffaele University, Milan, Italy performed the first procedure of gene therapy using hematopoietic stem cells as vectors to deliver genes intended to correct hereditary diseases. This was a world first, but was unfortunately unsuccessful because it did not lead to sustained correction of the hematopoietic stem cells. In 2002 this work led to the publication of the first successful gene therapy treatment for adenosine deaminase deficiency (SCID). He expanded this work to stem cell gene therapy of other genetic diseases and AIDS, and for the immunotherapy of cancer.
TK is an experimental cell therapy which may be used to treat high-risk leukemia. It is currently undergoing a Phase III clinical trial to determine efficacy and clinical usefulness.
Pamela J. Russell was an Australian academic researcher of immunology, bladder and prostate research. Russell was awarded Membership of the Order of Australia (AM) for her research on prostate and bladder cancer in 2003.
Guo Mei is a hematologist and associate director of 307th Hospital of Chinese People’s Liberation Army and deputy director of Radiation Research Institute.
Type 1 regulatory cells or Tr1 (TR1) cells are a class of regulatory T cells participating in peripheral immunity as a subset of CD4+ T cells. Tr1 cells regulate tolerance towards antigens of any origin. Tr1 cells are self or non-self antigen specific and their key role is to induce and maintain peripheral tolerance and suppress tissue inflammation in autoimmunity and graft vs. host disease.
Infectious tolerance is a term referring to a phenomenon where a tolerance-inducing state is transferred from one cell population to another. It can be induced in many ways; although it is often artificially induced, it is a natural in vivo process. A number of research deal with the development of a strategy utilizing this phenomenon in transplantation immunology. The goal is to achieve long-term tolerance of the transplant through short-term therapy.
Deficiency of Adenosine deaminase 2 (DADA2) is a monogenic disease associated with systemic inflammation and vasculopathy that affects a wide variety of organs in different patients. As a result, it is hard to characterize a patient with this disorder. Manifestations of the disease include but are not limited to recurrent fever, livedoid rash, various cytopenias, stroke, immunodeficiency, and bone marrow failure. Symptoms often onset during early childhood, but some cases have been discovered as late as 65 years old.
Shimon Slavin is an Israeli professor of medicine. He pioneered immunotherapy mediated by allogeneic donor lymphocytes and innovative methods for stem cell transplantation to cure hematological malignancies and solid tumors. He also used hematopoietic stem cells to induce transplantation tolerance to bone marrow and organ allografts.
Graziella Pellegrini is an Italian Professor of Cell Biology and the Cell Therapy Program Coordinator at the University of Modena and Reggio Emilia. She has developed and championed cell therapy protocols in hospitals across Italy.
Marina Cavazzana is a professor of Paediatric Immunology at the Necker-Enfants Malades Hospital and the Imagine Institute, as well as an academic at Paris Descartes University. She was awarded the Irène Joliot-Curie Prize in 2012 and elected to the National Academy of Medicine in 2019.
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