Publications by authors named "Aliisa M Tiihonen"
The tumor immune microenvironment (TiME) of human central nervous system (CNS) tumors remains to be comprehensively deciphered. Here, we employed flow cytometry and RNA sequencing analysis for a deep data-driven dissection of a diverse TiME and to uncover noncanonical immune cell types in human CNS tumors by using seven tumors from five patients. Myeloid subsets comprised classical microglia, monocyte-derived macrophages, neutrophils, and two noncanonical myeloid subsets: CD3 myeloids and CD19 myeloids.
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- Prostate cancer treatment resistance is a major challenge, with genomic studies revealing how cancer cells evade therapies, yet the tumor microenvironment's (TME) role remains unclear.
- A study using advanced techniques on samples from 120 patients offers a detailed transcriptomic profile of the prostate TME throughout the treatment process.
- The research highlights a unique cell type called club-like cells that interact with the immune system, suggesting their involvement in inflammation and resistance to androgen deprivation therapy, indicating they could be potential targets for new treatments.
Glioblastoma presents a formidable clinical challenge because of its complex microenvironment. Here, we characterized tumor-associated foam cells (TAFs), a type of lipid droplet-loaded macrophage, in human glioblastoma. Through extensive analyses of patient tumors, together with in vitro and in vivo investigations, we found that TAFs exhibit distinct protumorigenic characteristics related to hypoxia, mesenchymal transition, angiogenesis, and impaired phagocytosis, and their presence correlates with worse outcomes for patients with glioma.
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- The study focuses on the progression of low-grade diffuse astrocytomas into grade 4 tumors and its impact on patient outcomes, highlighting the need for better understanding to enhance patient care.
- Researchers analyzed genetic data from a cohort of patients with IDH-mutant astrocytomas, revealing significant alterations like increased chromosomal rearrangements and inactivation of key genes related to cell cycle regulation after treatment.
- Results indicate that combined postoperative radiation and chemotherapy, especially temozolomide, may lead to improved survival outcomes, particularly in patients with grade 3 tumors, suggesting a need for more effective treatment strategies.
Oligodendrogliomas are typically associated with the most favorable prognosis among diffuse gliomas. However, many of the tumors progress, eventually leading to patient death. To characterize the changes associated with oligodendroglioma recurrence and progression, we analyzed two recurrent oligodendroglioma tumors upon diagnosis and after tumor relapse based on whole-genome and RNA sequencing.
View Article and Find Full Text PDFDeregulation of fibroblast growth factor receptor (FGFR) signaling is tightly associated with numerous human malignancies, including cancer. Indeed, FGFR inhibitors are being tested as anti-tumor drugs in clinical trials. Among gliomas, FGFR3 fusions occur in IDH wild-type diffuse gliomas leading to high FGFR3 protein expression and both, FGFR3 and FGFR1, show elevated expression in aggressive ependymomas.
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