226 results match your criteria: "Department of Clinical and Molecular Pathology[Affiliation]"

Papillary thyroid carcinoma (PTC) represents ~80% of all thyroid cancers, most frequently presenting in women in the third and fourth decade of life. The first clinical manifestation of PTC commonly includes a palpable mass in the thyroid area or cervical lymphadenopathy in cases of metastatic disease. Hematogenous distant metastases are a sign of an advanced stage of the tumour.

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Complexity of synovial fluid-derived monocyte-macrophage-lineage cells in knee osteoarthritis.

Cell Rep

December 2024

Department of Immunology, Faculty of Medicine and Dentistry, Palacký University Olomouc, Olomouc, Czechia; Department of Immunology, University Hospital Olomouc, Olomouc, Czechia. Electronic address:

Synovial fluid (SF)-derived monocyte-macrophage (MON-Mϕ)-lineage cells in knee osteoarthritis (KOA) remain poorly understood. We analyzed SF samples from 420 patients with KOA with effusion. The MON-Mϕ cells accounted for 47.

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Objectives: Tumor budding was suggested as a valuable prognostic factor in oral squamous cell carcinoma (OSCC) but lacks a standardized scoring system. This study evaluates tumor budding in OSCC using the scoring system recommended by the International Tumor Budding Consensus Conference (ITBCC) 2016.

Materials And Methods: The study included 114 patients with resected OSCC.

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Introduction: Platinum-based chemotherapy followed by the immune checkpoint inhibitor avelumab represents an intensified upfront therapy regimen that may result in significant downstaging and, subsequently, potentially radical robotic nephroureterectomy with a lymph node dissection, an uncommon approach with an unexpectedly favorable outcome.

Case Presentation: We report a case of a 70-year-old female presented with a sizeable cN2+ tumor of the left renal pelvis and achieved deep partial radiologic response after systemic therapy with four cycles of gemcitabine-cisplatin chemotherapy followed by avelumab maintenance therapy and subsequent robotic resection of the tumor. The patient continued with adjuvant nivolumab therapy once recovered after surgery and remained tumor-free on the subsequent follow-up.

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Mixed-phenotype leukemia with TCF3::ZNF384 fusion presenting as an isolated mediastinal mass.

Ann Hematol

November 2024

Department of Medicine, School of Clinical Medicine, LKS Faculty of Medicine, the University of Hong Kong, Pok Fu Lam, Hong Kong.

Acute leukemia with TCF3::ZNF384 is a distinct type of acute leukemia that present most commonly as B-acute lymphoblastic leukemia or mixed-phenotype acute leukemia (B/myeloid). We report the first case of TCF3::ZNF384 mixed-phenotype leukemia presenting as isolated extramedullary disease in the mediastinum. Diagnosis using RNA-sequencing and whole genome sequencing on the primary issue is illustrated.

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Castration-resistant prostate cancer monitoring by cell-free circulating biomarkers.

Front Oncol

September 2024

Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacký University and University Hospital, Olomouc, Czechia.

Background: Prostate cancer is the second leading cause of male cancer-related deaths in Western countries, which is predominantly attributed to the metastatic castration-resistant stage of the disease (CRPC). There is an urgent need for better prognostic and predictive biomarkers, particularly for androgen receptor targeted agents and taxanes.

Methods: We have searched the PubMed database for original articles and meta-analyses providing information on blood-based markers for castration-resistant prostate cancer monitoring, risk group stratification and prediction of therapy response.

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Hodgkin/Reed-Sternberg cells induce GPNMB expression and release from macrophages to suppress T-cell responses to the Epstein-Barr virus-encoded LMP2A protein.

Haematologica

August 2024

Limerick Digital Cancer Research Centre, Bernal Institute and Health Research Institute and School of Medicine, University of Limerick, Limerick, Ireland; Royal College of Surgeons in Ireland Medical University of Bahrain, Manama, Bahrain; Department of Clinical and Molecular Pathology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University and University Hospital Olomouc, Olomouc.

Not available.

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Purpose: Docetaxel resistance is a significant obstacle in the treatment of prostate cancer (PCa), resulting in unfavorable patient prognoses. Intratumoral heterogeneity, often associated with epithelial-to-mesenchymal transition (EMT), has previously emerged as a phenomenon that facilitates adaptation to various stimuli, thus promoting cancer cell diversity and eventually resistance to chemotherapy, including docetaxel. Hence, understanding intratumoral heterogeneity is essential for better patient prognosis and the development of personalized treatment strategies.

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Single-cell profiling of surface glycosphingolipids opens a new dimension for deconvolution of breast cancer intratumoral heterogeneity and phenotypic plasticity.

J Lipid Res

September 2024

Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Brno, Czech Republic; International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic; Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic. Electronic address:

Glycosylated sphingolipids (GSLs) are a diverse group of cellular lipids typically reported as being rare in normal mammary tissue. In breast cancer (BCa), GSLs have emerged as noteworthy markers associated with breast cancer stem cells, mediators of phenotypic plasticity, and contributors to cancer cell chemoresistance. GSLs are potential surface markers that can uniquely characterize the heterogeneity of the tumor microenvironment, including cancer cell subpopulations and epithelial-mesenchymal plasticity (EMP).

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Aims: Endoplasmic reticulum stress followed by the unfolded protein response is one of the cellular mechanisms contributing to the progression of α-synuclein pathology in Parkinson's disease and other Lewy body diseases. We aimed to investigate the activation of endoplasmic reticulum stress and its correlation with α-synuclein pathology in human post-mortem brain tissue.

Methods: We analysed brain tissue from 45 subjects-14 symptomatic patients with Lewy body disease, 19 subjects with incidental Lewy body disease, and 12 healthy controls.

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Introduction: Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary kidney disease, which is mainly caused by pathogenic variants in two particular genes: and . ADPKD caused by variants in other genes ( or ) is very rare.

Case Report: In a 6-year-old girl examined for abdominal pain, a cystic mass in the upper part of the right kidney was detected during an abdominal ultrasound.

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Continued exploration of the androgen receptor (AR) is crucial, as it plays pivotal roles in diverse diseases such as prostate cancer (PCa), serving as a significant therapeutic focus. Therefore, the Department of Urology Dresden hosted an international meeting for scientists and clinical oncologists to discuss the newest advances in AR research. The 2nd International Androgen Receptor Symposium was held in Dresden, Saxony, Germany, from 26-27.

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Small protein blockers of human IL-6 receptor alpha inhibit proliferation and migration of cancer cells.

Cell Commun Signal

May 2024

Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Prumyslova 595, Vestec, 252 50, Czech Republic.

Background: Interleukin-6 (IL-6) is a multifunctional cytokine that controls the immune response, and its role has been described in the development of autoimmune diseases. Signaling via its cognate IL-6 receptor (IL-6R) complex is critical in tumor progression and, therefore, IL-6R represents an important therapeutic target.

Methods: An albumin-binding domain-derived highly complex combinatorial library was used to select IL-6R alpha (IL-6Rα)-targeted small protein binders using ribosome display.

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PD-L1 is one of the two programmed cell death 1 (PD-1) ligands and a part of an immune checkpoint system (PD-1/PD-L1) with widespread clinical application. The aim of this study was to investigate PD-L1 expression and its association with clinicopathological and prognostic significance in non-clear cell renal cell carcinoma (non-ccRCC) patients. A total of 41 papillary (pRCC) and 20 chromophobe (chRCC) RCC tumors were examined for PD-L1 expression by immunohistochemistry in the cancer cells and tumor-infiltrating mononuclear cells (TIMCs).

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Epithelial-mesenchymal transition (EMT) is a crucial and fundamental mechanism in many cellular processes, beginning with embryogenesis via tissue remodulation and wound healing, and plays a vital role in tumorigenesis and metastasis formation. EMT is a complex process that involves many transcription factors and genes that enable the tumor cell to leave the primary location, invade the basement membrane, and send metastasis to other tissues. Moreover, it may help the tumor avoid the immune system and establish radioresistance and chemoresistance.

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Background: A total of 30-40% of diffuse large B cell lymphoma (DLBCL) patients will either not respond to the standard therapy or their disease will recur. The first-line treatment for DLBCL is rituximab and combination chemotherapy. This treatment involves the chemotherapy-induced recruitment of tumor-associated macrophages that recognize and kill rituximab-opsonized DLBCL cells.

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Juvenile primary Sjögren syndrome (pSS) with renal involvement is extremely rare, reported approximately in 50 children, predominantly girls. Here, we present the first reported case of a male child with juvenile pSS with ocular surface disease (previously keratoconjunctivitis sicca), submandibular salivary gland involvement, and tubulointerstitial nephritis. First, two symptoms were clinically apparent at presentation.

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Reply to: Questioning the cycad theory of Kii ALS-PDC causation.

Nat Rev Neurol

March 2024

Department of Neurology and Clinical Neuroscience Center, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic.

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Objective: The aim of this study was to: (1) evaluate the anti-inflammatory effects of cannabidiol (CBD) on primary cultures of human gingival fibroblasts (HGFs) and (2) to clinically monitor the effect of CBD in subjects with periodontitis.

Background: The use of phytocannabinoids is a new approach in the treatment of widely prevalent periodontal disease.

Materials And Methods: Cannabinoid receptors were analyzed by western blot and interleukin production detected using enzyme immunoassay.

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SMARCB1-deficient sinonasal adenocarcinoma is a rare variant of SWI/SNF-deficient malignancies with SMARCB1 loss and adenocarcinoma features. More than 200 high-grade epithelial sinonasal malignancies were retrieved. A total of 14 cases exhibited complete SMARCB1 (INI1) loss and glandular differentiation.

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The contribution of new methods in cytology for increasing sensitivity in the diagnosis of extrahepatic bile duct lesions.

Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub

December 2023

2nd Department of Internal Medicine - Gastroenterology and Geriatrics, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, 779 00 Olomouc, Czech Republic.

The aim of this review is to provide a comprehensive analysis of the existing literature pertaining to cytology of extrahepatic bile ducts. A search using the keywords "biliary brush cytology" was conducted in the PubMed database, with a focus on recent articles. The inclusion criteria primarily encompassed publications addressing problematic biliary stenosis.

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Article Synopsis
  • Amyloidosis is a rare disorder caused by misfolded proteins, leading to abnormal deposits in tissues, including the lungs, where nodular pulmonary amyloidosis is particularly uncommon and often asymptomatic.* -
  • The only documented case of nodular pulmonary amyloidosis causing clinical symptoms, like spontaneous pneumothorax, involved an 81-year-old male with an AH-dominant type, highlighting its rarity and complexity.* -
  • Accurate identification of amyloid types is challenging but essential for understanding the underlying disease and determining appropriate diagnostic and treatment strategies, making it important in differential diagnoses of pulmonary conditions.*
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Endemic parkinsonism: clusters, biology and clinical features.

Nat Rev Neurol

October 2023

Department of Neurology and Clinical Neuroscience Center, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic.

The term 'endemic parkinsonism' refers to diseases that manifest with a dominant parkinsonian syndrome, which can be typical or atypical, and are present only in a particular geographically defined location or population. Ten phenotypes of endemic parkinsonism are currently known: three in the Western Pacific region; two in the Asian-Oceanic region; one in the Caribbean islands of Guadeloupe and Martinique; and four in Europe. Some of these disease entities seem to be disappearing over time and therefore are probably triggered by unique environmental factors.

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L1CAM Is Not a Predictive Factor in Early-stage Squamous-cell Cervical Cancer.

In Vivo

November 2023

Department of Obstetrics and Gynecology, Gynecological Oncology Centre, University Hospital Ostrava, Ostrava Poruba, Czech Republic;

Aim: Our study aimed to assess expression of L1 cell adhesion molecule (L1CAM) in early-stage cervical squamous-cell cancer as a prognostic factor.

Patients And Methods: This retrospective, single-institution study included 154 patients who underwent radical hysterectomy for early-stage squamous cell cervical cancer between 2007 and 2017. Tumor samples from 154 patients were available for L1CAM analysis by immunohistochemistry.

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