Maija Hollmen
PhD, Doc.; Principal Investigator, Academy Research Fellow
maijal@utu.fi +358 29 450 4389 Tykistökatu 6 Turku ORCID identifier: https://orcid.org/0000-0002-3250-7653 |
Tumor Immunology; Immunotherapy; Macrophages; Breast Cancer; Antibodies
I got interested in the immunological aspect of cancer during my three-year postdoctoral training at ETH Zurich with professor Michael Detmar during the years 2011-2014. Before this I had already built extensive knowledge in cancer biology, epidermal growth factor receptor signaling and immunotherapy during my PhD studies with professor Klaus Elenius. These two periods have educated me to do trans-disciplinary research combining different methods and ideas together with good outcome. I am at the state of leading a small tumor immunology research group and building collaborations both nationally and internationally. The aim of my research is to always produce clinically relevant data that can be translated directly from bench to bedside. Therefore, a vital part of my research has been done in collaboration with clinicians and pharma companies.
Development of strategies targeting immunosuppressive cells, molecules and pathways with less toxicity and with more universal role in tumor progression is an unmet clinical need. Possibilities to control the presence of suppressive cells within tumors are key factors in opening new avenues to fight against cancer growth. This is highly important since efforts in re-activating immune responses against tumors solely by blocking T cell inhibitory molecules have not shown promise as a single therapy for the vast majority of patients.
Mechanisms regulating macrophage phenotype in the tumor microenvironment has emerged as a highly potential field in drug development. Moreover, definitive biomarkers indicative of immunotherapy treatment response and feasible assessment of the immunological changes of the tumor microenvironment during and after treatment are severely lacking.
Our research exploits a unique scavenger receptor Clever-1, expressed on a subpopulation of immunosuppressive macrophages, to alleviate tumor related inflammation and develop Clever-1 as a companion therapeutic, diagnostic, and prognostic biomarker to treat and identify patients under immunosuppression. This involves the use of in vivo tumor models and sophisticated immunological assays with cutting-edge technology and state-of-the-art imaging combined with fresh human cancer patient material to elucidate the function of Clever-1 in controlling macrophage mediated local and systemic immune responses. Our results potentially have a high impact in understanding the mechanism of macrophage-mediated immunosuppression in cancer and promoting anti-Clever-1 immunotherapy into clinical trials where it may have benefits in comparison with currently available immune activating drugs.
Lecturer in Molecular Medicine and Basic Immunology; Normal and Pathological Angiogenesis, Myeloid Leukocytes and Pattern Recognition
- The effect of acute exercise on circulating immune cells in newly diagnosed breast cancer patients (2023)
- Scientific Reports
(A1 Refereed original research article in a scientific journal) - A distinct M2 macrophage infiltrate and transcriptomic profile decisively influence adipocyte differentiation in lipedema (2022)
- Frontiers in Immunology
(A1 Refereed original research article in a scientific journal) - BRAFV600E Expression in Thyrocytes Causes Recruitment of Immunosuppressive STABILIN-1 Macrophages (2022)
- Cancers
(A1 Refereed original research article in a scientific journal) - (2022)
- Cancer CellJournal of Surgical Research
(A1 Refereed original research article in a scientific journal) - Clever-1 positive macrophages in breast cancer (2022)
- Breast Cancer Research and TreatmentClinical Cancer Research
(A1 Refereed original research article in a scientific journal) - Disadvantages of high fluid infusion rate in cardiac surgery (2022)
- European Journal of Anaesthesiology
(B1 Non-refereed article in a scientific journal) - Nonclinical Characterization of Bexmarilimab, a Clever-1-Targeting Antibody for Supporting Immune Defense Against Cancers (2022)
- Molecular Cancer Therapeutics
(A1 Refereed original research article in a scientific journal) - Preclinical Evaluation of a Humanized Antibody Against Common Lymphatic Endothelial and Vascular Endothelial Receptor-1, 89Zr-Desferrioxamine-Bexmarilimab, in a Rabbit Model of Renal Fibrosis (2022)
- Journal of Nuclear Medicine
(A1 Refereed original research article in a scientific journal) - The tumor and plasma cytokine profiles of renal cell carcinoma patients (2022)
- Scientific Reports
(A1 Refereed original research article in a scientific journal) - A Distinct Cytokine Profile and Stromal Vascular Fraction Metabolic Status without Significant Changes in the Lipid Composition Characterizes Lipedema2021
- International Journal of Molecular SciencesIntensive Care Medicine
(A1 Refereed original research article in a scientific journal) - Intravenous Interferon-beta 1a for the Treatment of Ischemia-Reperfusion Injury in Acute Myocardial Infarct in Pigs (2021)
- Heart Surgery Forum
(A1 Refereed original research article in a scientific journal) - Lymphatic Endothelial Cell Activation and Dendritic Cell Transmigration Is Modified by Genetic Deletion of Clever-1 (2021)
- Frontiers in Immunology
(A1 Refereed original research article in a scientific journal) - Melanocortin 1 Receptor Deficiency in Hematopoietic Cells Promotes the Expansion of Inflammatory Leukocytes in Atherosclerotic Mice (2021)
- Frontiers in Immunology
(A1 Refereed original research article in a scientific journal) - Novel Biomarkers for Diagnosing Periprosthetic Joint Infection from Synovial Fluid and Serum (2021)
- JB & JS open access
(A1 Refereed original research article in a scientific journal) - Red blood cell transfusion induces abnormal HIF-1 alpha response to cytokine storm after adult cardiac surgery (2021)
- Scientific Reports
(A1 Refereed original research article in a scientific journal) - Systemic Blockade of Clever-1 Elicits Lymphocyte Activation Alongside Checkpoint Molecule Downregulation in Patients with Solid Tumors: Results from a Phase I/II Clinical Trial (2021)
(A1 Refereed original research article in a scientific journal) - Vascular adhesion protein-1 defines a unique subpopulation of human hematopoietic stem cells and regulates their proliferation (2021)
- Cellular and Molecular Life Sciences
(A1 Refereed original research article in a scientific journal) - Vascular Adhesion Protein 1 Mediates Gut Microbial Flagellin-Induced Inflammation, Leukocyte Infiltration, and Hepatic Steatosis (2021)
- Sci
(A1 Refereed original research article in a scientific journal) - Adipose Tissue Hypertrophy, An Aberrant Biochemical Profile and Distinct Gene Expression in Lipedema (2020)
(A1 Refereed original research article in a scientific journal) - Glucocorticoids inhibit type I IFN beta signaling and the upregulation of CD73 in human lung (2020)
(B1 Non-refereed article in a scientific journal)