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Roland Mertelsmann | |
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Born | Hameln, Germany | 5 October 1944
Known for | Hematology, oncology, gene therapy, stem cell transplantation |
Scientific career | |
Fields | Oncology, hematology |
Institutions | University of Freiburg |
Roland Mertelsmann is a hematologist, oncologist and professor emeritus [1] at the University Medical Center Freiburg, Department of Oncology, Hematology and Stem Cell Transplantation in Freiburg im Breisgau, Germany. Mertelsmann is known for his scientific works in the fields of hematology, oncology, gene therapy and stem cell transplantation.
Mertelsmann studied medicine at the University of Göttingen 1966–68. He was a doctoral candidate at the Max Planck Institute for Experimental Medicine at Heinrich Matthaei in Göttingen 1966–68. He continued his medical education at the School of Medicine King's College London and at the Columbia-Presbyterian Medical Center, New York 1968–78. After graduating from Hamburg University Medical School and receiving his MD degree, he became Research Fellow at the Department of Developmental Hematopoiesis and received a special fellowship in Hematology and Clinical Oncology at Memorial Sloan-Kettering Cancer Center (MSKCC), 1976–78. There he contributed to the isolation of the blood stimulating growth factor G-CSF, which leads to a faster recovery of white blood cells after chemotherapy and radiation therapy protecting patients better against severe infections. From 1978 to 86 he was clinical assistant physician at MSKCC, then assistant attending physician and associate attending physician at the Memorial Hospital of Sloan-Kettering Cancer Center. He was promoted from assistant professor of medicine to associate professor of medicine at Cornell University, New York. In 1985, he returned to Germany and was appointed professor and head of the 3rd Medical Clinic Hematology and Oncology at the University of Mainz, Germany, University Medical Center. 1989 he accepted a professorship at the University of Freiburg. At Freiburg University Medical Center he became the director of the Department for Medicine I, Oncology, Hematology and Stem Cell Transplantation. He retired in 2012. [2]
During his career Mertelsmann recruited and promoted young scientists. Several leading positions at universities and in the industry were occupied with former team members of Mertelsmann. In 2008 he founded the International Master Program in Biomedical Sciences, [3] a cooperation of the universities of Freiburg and Buenos Aires, educating and training international master students in biomedicine. In 2014 he initiated the foundation of the journal JOSHA, [4] a novel internet platform to access the broad diversity of important discoveries and creativity in the fields of science, humanities and arts. Mertelsmann published more than 400 articles in medical journals.[ citation needed ]
After discovery of the genetic code by Heinrich Matthaei and Marshall Nirenberg (1962), Mertelsmann began his research for his medical doctorate as a medical student in Heinrich Matthaei's Laboratory at the Max-Planck-Institute for experimental Medicine in Göttingen, Germany, demonstrating and characterizing for the first time a human RNA-Polymerase. [5] Since nucleic acid synthesis is an important target for chemotherapeutic agents, he subsequently investigated in his team together with various colleagues, DNA-Polymerases, especially terminal deoxynucleotidyl transferase (TdT), and RNA-Polymerases as diagnostic and prognostic markers in leukemias and lymphomas. [6]
The "Plasticity" of hematopoietic stem cells (HSC), i.e. the differentiation of HSC into cells of other organs, [7] was intensively studied with Alexandros Spyridonidis [8] in patients after allogeneic bone marrow transplantation. These studies demonstrated conclusively, that this phenomenon can be observed in these patients, but is a rare event. Molecular mechanisms of B-cell neoplasias [9] [10] were investigated together with Binder, Trepel and Dierks, the pathogenic significance of granulocytes in Graft-versus-host disease with Zeiser and his colleagues. [11]
As a member of the clinical (Director Bayard Clarkson) and laboratory teams (Director Malcolm A.S. Moore), he carried out a systematic analysis of all patients with acute myeloid leukemia (AML) treated at MSKCC, defining the prognostic and predictive parameters of cell cytology, cell growth in vitro and enzymatic markers. [12] [13] By using all techniques available at the time for phenotypic characterization of leukemia cells, he was successful in discovering and describing novel subentities of acute leukemias. [14] [15]
In Cooperation with Karl Welte and his colleagues at MSKCC the purification and molecular and biological characterization of cytokines, important regulators of cell division, differentiation and migration, were the focus of his work in the following years at MSKCC. Interleukin-2 [16] as well as G-CSF [17] were purified to homogeneity, First translational and clinical studies of cytokines followed. [18] Since experiments in murine models demonstrated that local production by gene transduced cells produced a stronger and more specific immune response than a systemic application, e.g. of Interleukin-2, this strategy was also pursued by his group in Phase I clinical trials. [19] [20] [21] These studies contributed to the later, successful clinical implementation of gene therapy for this and other indications.[ citation needed ]
In clinical trials for patients with leukemias and lymphomas at the MSKCC [22] and subsequently in German and European clinical trial groups, [23] [24] new therapeutic concepts were studied including classical chemotherapies as well as novel therapeutic strategies. [25] [26] For some rare, generally lethal cancers, the innovative use of rapidly recycling classical chemotherapy combinations followed by immediate High Dose Chemotherapy with HSC transplantation, led to long term remission and probably cures, which had not been seen with other therapies and in historical controls. [27]
As clinical oncologist Mertelsmann also search for novel strategies to not only prolong life, but to increase quality of life. The systematic development of aerobic training programs for cancer patients undergoing chemotherapy and bone morrow transplantation [28] was highly successful and is now being used in many cancer centers worldwide.[ citation needed ]
Mertelsmann was involved in a scientific misconduct affair in 1997. The complaint focussed on the falsification of laboratory data. An investigation commission did not prove the active participation of Mertelsmann. [29]
Mertelsmann is or was member of many international scientific organizations or journals, among them many years at the journals European Journal of Cancer and Annals of Hematology. He is a foundation member of the Comprehensive Cancer Center Freiburg (CCCF), Initiator and director of the International Biomedical Exchange Program (IMEP), founder of the ARGER-Foundation, [30] editor of the SRC-SDARF-UJDRF Joint Programme in Stem Cell Research, Stockholm and president of the International Association for Comparative Research on Leukemia and related Diseases (IACRLD).[ citation needed ]
Other select memberships:
Articles in journals
Books (selection)
Roland Mertelsmann in:
Lymphoma is a group of blood and lymph tumors that develop from lymphocytes. The name typically refers to just the cancerous versions rather than all such tumours. Signs and symptoms may include enlarged lymph nodes, fever, drenching sweats, unintended weight loss, itching, and constantly feeling tired. The enlarged lymph nodes are usually painless. The sweats are most common at night.
Chronic lymphocytic leukemia (CLL) is a type of cancer that affects the blood and bone marrow. In CLL, the bone marrow makes too many lymphocytes, which are a type of white blood cell. Many people do not have any symptoms when they are first diagnosed. Those with symptoms may experience fevers, fatigue, night sweats, and weight loss. These patients may also have painless lymph node swelling, enlargement of the spleen, and/or a low red blood cell count (anemia). These symptoms may worsen over time.
Granulocyte colony-stimulating factor, also known as colony-stimulating factor 3, is a glycoprotein that stimulates the bone marrow to produce granulocytes and stem cells and release them into the bloodstream.
Hematopoietic stem-cell transplantation (HSCT) is the transplantation of multipotent hematopoietic stem cells, usually derived from bone marrow, peripheral blood, or umbilical cord blood, in order to replicate inside a patient and produce additional normal blood cells. HSCT may be autologous, syngeneic, or allogeneic.
Adult T-cell leukemia/lymphoma is a rare cancer of the immune system's T-cells caused by human T cell leukemia/lymphotropic virus type 1 (HTLV-1). All ATL cells contain integrated HTLV-1 provirus further supporting that causal role of the virus in the cause of the neoplasm. A small amount of HTLV-1 individuals progress to develop ATL with a long latency period between infection and ATL development. ATL is categorized into 4 subtypes: acute, smoldering, lymphoma-type, chronic. Acute and Lymphoma-type are known to particularly be aggressive with poorer prognosis.
Waldenström macroglobulinemia is a type of cancer affecting two types of B cells: lymphoplasmacytoid cells and plasma cells. Both cell types are white blood cells. It is characterized by having high levels of a circulating antibody, immunoglobulin M (IgM), which is made and secreted by the cells involved in the disease. Waldenström macroglobulinemia is an "indolent lymphoma" and a type of lymphoproliferative disease which shares clinical characteristics with the indolent non-Hodgkin lymphomas. It is commonly classified as a form of plasma cell dyscrasia, similar to other plasma cell dyscrasias that, for example, lead to multiple myeloma. Waldenström macroglobulinemia is commonly preceded by two clinically asymptomatic but progressively more pre-malignant phases, IgM monoclonal gammopathy of undetermined significance and smoldering Waldenström macroglobulinemia. The Waldenström macroglobulinemia spectrum of dysplasias differs from other spectrums of plasma cell dyscrasias in that it involves not only aberrant plasma cells but also aberrant lymphoplasmacytoid cells and that it involves IgM while other plasma dyscrasias involve other antibody isoforms.
Interleukin 7 (IL-7) is a protein that in humans is encoded by the IL7 gene.
Lymphomatoid granulomatosis (LYG or LG) is a very rare lymphoproliferative disorder first characterized in 1972. Lymphomatoid means lymphoma-like and granulomatosis denotes the microscopic characteristic of the presence of granulomas with polymorphic lymphoid infiltrates and focal necrosis within it.
Cluster of differentiation antigen 135 (CD135) also known as fms like tyrosine kinase 3, receptor-type tyrosine-protein kinase FLT3, or fetal liver kinase-2 (Flk2) is a protein that in humans is encoded by the FLT3 gene. FLT3 is a cytokine receptor which belongs to the receptor tyrosine kinase class III. CD135 is the receptor for the cytokine Flt3 ligand (FLT3L).
Richter's transformation (RT), also known as Richter's syndrome, is the conversion of chronic lymphocytic leukemia (CLL) or its variant, small lymphocytic lymphoma (SLL), into a new and more aggressively malignant disease. CLL is the circulation of malignant B lymphocytes with or without the infiltration of these cells into lymphatic or other tissues while SLL is the infiltration of these malignant B lymphocytes into lymphatic and/or other tissues with little or no circulation of these cells in the blood. CLL along with its SLL variant are grouped together in the term CLL/SLL.
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare hematologic malignancy. It was initially regarded as a form of lymphocyte-derived cutaneous lymphoma and alternatively named CD4+CD56+ hematodermic tumor, blastic NK cell lymphoma, and agranular CD4+ NK cell leukemia. Later, however, the disease was determined to be a malignancy of plasmacytoid dendritic cells rather than lymphocytes and therefore termed blastic plasmacytoid dendritic cell neoplasm. In 2016, the World Health Organization designated BPDCN to be in its own separate category within the myeloid class of neoplasms. It is estimated that BPDCN constitutes 0.44% of all hematological malignancies.
Marcel R.M. van den Brink is a Dutch oncologist and researcher known for his research in hematopoietic stem cell transplantation for cancer patients.
David G. Maloney is an oncologist and researcher at Fred Hutchinson Cancer Research Center and the University of Washington who specializes in developing targeted immunotherapies for the treatment of blood cancers.
Clonal hypereosinophilia, also termed primary hypereosinophilia or clonal eosinophilia, is a grouping of hematological disorders all of which are characterized by the development and growth of a pre-malignant or malignant population of eosinophils, a type of white blood cell that occupies the bone marrow, blood, and other tissues. This population consists of a clone of eosinophils, i.e. a group of genetically identical eosinophils derived from a sufficiently mutated ancestor cell.
Camidanlumab tesirine is an antibody-drug conjugate (ADC) composed of a human antibody that binds to the protein CD25, conjugated to a pyrrolobenzodiazepine dimer toxin. The experimental drug, developed by ADC Therapeutics is being tested in clinical trials for the treatment of B-cell Hodgkin's lymphoma (HL) and non-Hodgkin lymphoma (NHL), and for the treatment of B-cell acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML).
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.
Nirali N. Shah is an American physician-scientist and pediatric hematologist-oncologist, serving as head of the hematologic malignancies section of the pediatric oncology branch at the National Cancer Institute. She researches the translation of immunotherapeutic approaches to treat high-risk hematologic malignancies in children, adolescents and young adults.
Brunangelo Falini is an Italian hematologist, academic and researcher. He is a Full Professor of Hematology, and Head of the Institute of Hematology and Bone Marrow Transplantation at University of Perugia.
Christopher Hourigan is a physician-scientist known for work on measurable residual disease in acute myeloid leukemia.
Bayard Delafield Clarkson Sr. is an American physician, hematologist, and oncologist.