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Rozsypalova A, Rosova B, Filipova A, Nikolov DH, Chloupkova R, Richter I, Zachoval R, Matej R, Melichar B, Buchler T, Dvorak J. Association of the combined parameters including the frequency of primary cilia, PD-L1, Smoothened protein, membranous β-catenin and cytoplasmic β-catenin expression with the outcome of patients with clear cell renal cell carcinoma. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2024. [PMID: 38420990 DOI: 10.5507/bp.2024.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024] Open
Abstract
AIMS The objective of this study was to investigate the association and combined prognostic significance of the PD-L1, Smoothened protein and β-catenin expressions in patients with clear cell renal cell carcinoma (ccRCC). METHODS The PD-L1, Smoothened protein and β-catenin expression were evaluated in 104 ccRCC patients. All studied tumor samples were acquired from nephrectomy specimens of primary tumors and not from biopsies or metastases. An indirect immunohistochemistry using polyclonal rabbit anti-Smoothened antibody, monoclonal mouse anti-human β-catenin-1 antibody, immunohistochemical assay PD-L1 28-8 pharmDx using monoclonal rabbit anti-PD-L1 antibody and anti-VHL (C- terminal) rabbit antibody was used. Immunohistochemistry was scored semiquantitavely. RESULTS Median overall survival (OS) was significantly better in patients with lower PD-L1 expression (≤5%), Smoothened protein (SMO) expression (<5%) or cytoplasmic β-catenin expression (≤75%) than in patients with higher expressions of these biomarkers (P<0.001, P=0.047, and P<0.001, respectively). Membranous β-catenin showed an opposite effect with its lower expression (≤75%) being associated with longer OS (P=0.020). There was significant association between PD-1 and PD-L1 expression (P=0.007) and significant association of tumor grade (WHO 2016) with membranous β-catenin (P<0.001), cytoplasmic β-catenin (P=0.005), pVHL (P=0.042), PD-L1 (P=0.049) and PD-1 (P=0.028) expression. CONCLUSION The present study provides the first data on the potential association and combined prognostic significance of frequency of primary cilia, PD-L1, Smoothened protein and β-catenin expression with the outcome in clear cell renal cell carcinoma.
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Affiliation(s)
- Aneta Rozsypalova
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
| | - Blanka Rosova
- Department of Pathology and Molecular Medicine, Third Medical Faculty, Charles University and Thomayer University Hospital, Prague, Czech Republic
| | - Alzbeta Filipova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defense, Hradec Kralove, Czech Republic
| | | | - Renata Chloupkova
- Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Igor Richter
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
- Department of Oncology, Regional Hospital, Liberec, Czech Republic
| | - Roman Zachoval
- Department of Urology, Third Medical Faculty, Charles University and Thomayer University Hospital, Prague, Czech Republic
| | - Radoslav Matej
- Department of Pathology and Molecular Medicine, Third Medical Faculty, Charles University and Thomayer University Hospital, Prague, Czech Republic
| | - Bohuslav Melichar
- Department of Oncology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Czech Republic
| | - Tomas Buchler
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
| | - Josef Dvorak
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
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Rosova B, Proks J, Filipova A, Hadzi Nikolov D, Chloupkova R, Richter I, Szabo A, Rozsypalova A, Matej R, Melichar B, Buchler T, Dvorak J. Favorable prognostic significance of membranous β-catenin expression and negative prognostic significance of cytoplasmic β-catenin expression in pancreatic cancer. Neoplasma 2023; 70:796-803. [PMID: 38247336 DOI: 10.4149/neo_2023_230721n380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 11/29/2023] [Indexed: 01/23/2024]
Abstract
The aim of this study was to investigate the prognostic significance of membranous β-catenin and cytoplasmic β-catenin expression in pancreatic cancer patients (pts). One hundred pts with histologically verified exocrine pancreatic ductal adenocarcinoma were retrospectively studied. The membranous β-catenin, cytoplasmic β-catenin, and cell nucleus β-catenin expression were immunohistochemically evaluated. The expression of membranous β-catenin was <5% in none of the pts, 5-25% in one patient, 26-50% in 2 pts, 51-75% in 14 pts, and >75% in 81 pts. The expression of cytoplasmic β-catenin was <5% in 34 pts, 5-25% in 42 pts, 26-50% in 18 pts, 51-75% in 3 pts, and >75% in one patient. The expression of β-catenin in the cell nucleus was negative in all pts. At the time of the last follow-up, 21 pts were alive and 79 pts had died. Median OS was 1.3 (0.4-2.3) years in pts with membranous β-catenin expression ≤75% and 1.7 (1.3-2.1) years in pts with membranous β-catenin expression >75% (p=0.045). Median OS was (1.3-2.0) 1.6 years in pts with cytoplasmic β-catenin expression ≤25% and 0.9 (0.5-1.2) years in pts with cytoplasmic β-catenin expression >25% (p=0.040). In the univariate Cox proportional hazard models HR (95% CI) was 0.556 (0.311-0.995) in pts with membranous β-catenin expression >75% (p=0.048) and 2.200 (1.216-3.980) in pts with cytoplasmic β-catenin expression >25% (p=0.009). The present results indicate a favorable prognostic significance of membranous β-catenin expression in pancreatic cancer.
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Affiliation(s)
- Blanka Rosova
- Department of Pathology and Molecular Medicine, Third Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
| | - Jan Proks
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
| | - Alzbeta Filipova
- Department of Radiobiology, Faculty of Military Health Sciences in Hradec Kralove, University of Defense in Brno, Hradec Kralove, Czech Republic
| | | | - Renata Chloupkova
- Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Igor Richter
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
- Department of Oncology, Regional Hospital, Liberec, Czech Republic
| | - Arpad Szabo
- Department of Pathology, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Aneta Rozsypalova
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
| | - Radoslav Matej
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
- Department of Pathology, Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Bohuslav Melichar
- Department of Oncology, Palacky University Medical School and Teaching Hospital, Olomouc, Czech Republic
| | - Tomas Buchler
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
| | - Josef Dvorak
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic
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Sminia P, Guipaud O, Viktorsson K, Ahire V, Baatout S, Boterberg T, Cizkova J, Dostál M, Fernandez-Palomo C, Filipova A, François A, Geiger M, Hunter A, Jassim H, Edin NFJ, Jordan K, Koniarová I, Selvaraj VK, Meade AD, Milliat F, Montoro A, Politis C, Savu D, Sémont A, Tichy A, Válek V, Vogin G. Clinical Radiobiology for Radiation Oncology. Radiobiology Textbook 2023:237-309. [DOI: 10.1007/978-3-031-18810-7_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
AbstractThis chapter is focused on radiobiological aspects at the molecular, cellular, and tissue level which are relevant for the clinical use of ionizing radiation (IR) in cancer therapy. For radiation oncology, it is critical to find a balance, i.e., the therapeutic window, between the probability of tumor control and the probability of side effects caused by radiation injury to the healthy tissues and organs. An overview is given about modern precision radiotherapy (RT) techniques, which allow optimal sparing of healthy tissues. Biological factors determining the width of the therapeutic window are explained. The role of the six typical radiobiological phenomena determining the response of both malignant and normal tissues in the clinic, the 6R’s, which are Reoxygenation, Redistribution, Repopulation, Repair, Radiosensitivity, and Reactivation of the immune system, is discussed. Information is provided on tumor characteristics, for example, tumor type, growth kinetics, hypoxia, aberrant molecular signaling pathways, cancer stem cells and their impact on the response to RT. The role of the tumor microenvironment and microbiota is described and the effects of radiation on the immune system including the abscopal effect phenomenon are outlined. A summary is given on tumor diagnosis, response prediction via biomarkers, genetics, and radiomics, and ways to selectively enhance the RT response in tumors. Furthermore, we describe acute and late normal tissue reactions following exposure to radiation: cellular aspects, tissue kinetics, latency periods, permanent or transient injury, and histopathology. Details are also given on the differential effect on tumor and late responding healthy tissues following fractionated and low dose rate irradiation as well as the effect of whole-body exposure.
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Pejchal J, Tichy A, Kmochova A, Fikejzlova L, Kubelkova K, Milanova M, Lierova A, Filipova A, Muckova L, Cizkova J. Mitigation of Ionizing Radiation-Induced Gastrointestinal Damage by Insulin-Like Growth Factor-1 in Mice. Front Pharmacol 2022; 13:663855. [PMID: 35847048 PMCID: PMC9277384 DOI: 10.3389/fphar.2022.663855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 06/08/2022] [Indexed: 11/13/2022] Open
Abstract
Purpose: Insulin-like growth factor-1 (IGF-1) stimulates epithelial regeneration but may also induce life-threatening hypoglycemia. In our study, we first assessed its safety. Subsequently, we examined the effect of IGF-1 administered in different dose regimens on gastrointestinal damage induced by high doses of gamma radiation. Material and methods: First, fasting C57BL/6 mice were injected subcutaneously with IGF-1 at a single dose of 0, 0.2, 1, and 2 mg/kg to determine the maximum tolerated dose (MTD). The glycemic effect of MTD (1 mg/kg) was additionally tested in non-fasting animals. Subsequently, a survival experiment was performed. Animals were irradiated (60Co; 14, 14.5, or 15 Gy; shielded head), and IGF-1 was administered subcutaneously at 1 mg/kg 1, 24, and 48 h after irradiation. Simultaneously, mice were irradiated (60Co; 12, 14, or 15 Gy; shielded head), and IGF-1 was administered subcutaneously under the same regimen. Jejunum and lung damage were assessed 84 h after irradiation. Finally, we evaluated the effect of six different IGF-1 dosage regimens administered subcutaneously on gastrointestinal damage and peripheral blood changes in mice 6 days after irradiation (60Co; 12 and 14 Gy; shielded head). The regimens differed in the number of doses (one to five doses) and the onset of administration (starting at 1 [five regimens] or 24 h [one regimen] after irradiation). Results: MTD was established at 1 mg/kg. MTD mitigated lethality induced by 14 Gy and reduced jejunum and lung damage caused by 12 and 14 Gy. However, different dosing regimens showed different efficacy, with three and four doses (administered 1, 24, and 48 h and 1, 24, 48, and 72 h after irradiation, respectively) being the most effective. The three-dose regimens supported intestinal regeneration even if the administration started at 24 h after irradiation, but its potency decreased. Conclusion: IGF-1 seems promising in the mitigation of high-dose irradiation damage. However, the selected dosage regimen affects its efficacy.
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Affiliation(s)
- Jaroslav Pejchal
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence, Brno, Czechia
| | - Ales Tichy
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Brno, Czechia
| | - Adela Kmochova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Brno, Czechia
| | - Lenka Fikejzlova
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence, Brno, Czechia
| | - Klara Kubelkova
- Department of Molecular Pathology and Biology, Faculty of Military Health Sciences, University of Defence, Brno, Czechia
| | - Marcela Milanova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Brno, Czechia
| | - Anna Lierova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Brno, Czechia
| | - Alzbeta Filipova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Brno, Czechia
| | - Lubica Muckova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Brno, Czechia
| | - Jana Cizkova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Brno, Czechia
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Lierova A, Kasparova J, Filipova A, Cizkova J, Pekarova L, Korecka L, Mannova N, Bilkova Z, Sinkorova Z. Hyaluronic Acid: Known for Almost a Century, but Still in Vogue. Pharmaceutics 2022; 14:pharmaceutics14040838. [PMID: 35456670 PMCID: PMC9029726 DOI: 10.3390/pharmaceutics14040838] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/03/2022] [Accepted: 04/04/2022] [Indexed: 02/04/2023] Open
Abstract
Hyaluronic acid (HA) has a special position among glycosaminoglycans. As a major component of the extracellular matrix (ECM). This simple, unbranched polysaccharide is involved in the regulation of various biological cell processes, whether under physiological conditions or in cases of cell damage. This review summarizes the history of this molecule’s study, its distinctive metabolic pathway in the body, its unique properties, and current information regarding its interaction partners. Our main goal, however, is to intensively investigate whether this relatively simple polymer may find applications in protecting against ionizing radiation (IR) or for therapy in cases of radiation-induced damage. After exposure to IR, acute and belated damage develops in each tissue depending upon the dose received and the cellular composition of a given organ. A common feature of all organ damage is a distinct change in composition and structure of the ECM. In particular, the important role of HA was shown in lung tissue and the variability of this flexible molecule in the complex mechanism of radiation-induced lung injuries. Moreover, HA is also involved in intermediating cell behavior during morphogenesis and in tissue repair during inflammation, injury, and would healing. The possibility of using the HA polymer to affect or treat radiation tissue damage may point to the missing gaps in the responsible mechanisms in the onset of this disease. Therefore, in this article, we will also focus on obtaining answers from current knowledge and the results of studies as to whether hyaluronic acid can also find application in radiation science.
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Affiliation(s)
- Anna Lierova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, 500 01 Hradec Kralove, Czech Republic; (A.F.); (J.C.); (L.P.); (Z.S.)
- Correspondence:
| | - Jitka Kasparova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, 532 10 Pardubice, Czech Republic; (J.K.); (L.K.); (N.M.); (Z.B.)
| | - Alzbeta Filipova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, 500 01 Hradec Kralove, Czech Republic; (A.F.); (J.C.); (L.P.); (Z.S.)
| | - Jana Cizkova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, 500 01 Hradec Kralove, Czech Republic; (A.F.); (J.C.); (L.P.); (Z.S.)
| | - Lenka Pekarova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, 500 01 Hradec Kralove, Czech Republic; (A.F.); (J.C.); (L.P.); (Z.S.)
| | - Lucie Korecka
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, 532 10 Pardubice, Czech Republic; (J.K.); (L.K.); (N.M.); (Z.B.)
| | - Nikola Mannova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, 532 10 Pardubice, Czech Republic; (J.K.); (L.K.); (N.M.); (Z.B.)
| | - Zuzana Bilkova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, 532 10 Pardubice, Czech Republic; (J.K.); (L.K.); (N.M.); (Z.B.)
| | - Zuzana Sinkorova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, 500 01 Hradec Kralove, Czech Republic; (A.F.); (J.C.); (L.P.); (Z.S.)
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Dvorak J, Rosova B, Filipova A, Hadzi Nikolov D, Chloupkova R, Proks J, Richter I, Szabo P, Rozsypalova A, Matej R, Melichar B, Buchler T. 1548P Favourable prognostic significance of membranous β-catenin expression and negative prognostic significance of cytoplasmic β-catenin expression in pancreatic cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Filipova A, Diaz Garcia D, Dvorak J, Filip S, Jelicova M, Sinkorova Z. Simple Detection of Primary Cilia by Immunofluorescence. J Vis Exp 2020. [PMID: 32478758 DOI: 10.3791/61155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Primary cilia are dynamically regulated during cell cycle progression, specifically during the G0/G1 phases of the cell cycle, being resorbed prior to mitosis. Primary cilia can be visualized with highly sophisticated methods, including transmission electron microscopy, 3D imaging, or using software for the automatic detection of primary cilia. However, immunofluorescent staining of primary cilia is needed to perform these methods. This publication describes a protocol for the easy detection of primary cilia in vitro by staining acetylated alpha tubulin (axoneme) and gamma tubulin (basal body). This immunofluorescent staining protocol is relatively simple and results in high-quality images. The present protocol describes how four cell lines (C2C12, MEF, NHLF, and skin fibroblasts) expressing primary cilia were fixed, immunostained, and imaged with a fluorescent or confocal microscope.
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Affiliation(s)
- Alzbeta Filipova
- Department of Radiobiology, Faculty of Military Health Sciences in Hradec Kralove, University of Defence;
| | - Daniel Diaz Garcia
- Department of Clinical Biochemistry and Diagnostics, University Hospital
| | - Josef Dvorak
- Department of Oncology, Thomayer Hospital, Charles University
| | - Stanislav Filip
- Department of Oncology and Radiotherapy, Faculty of Medicine, Charles University
| | - Marcela Jelicova
- Department of Radiobiology, Faculty of Military Health Sciences in Hradec Kralove, University of Defence
| | - Zuzana Sinkorova
- Department of Radiobiology, Faculty of Military Health Sciences in Hradec Kralove, University of Defence
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Tichy A, Marek J, Havelek R, Pejchal J, Seifrtova M, Zarybnicka L, Filipova A, Rezacova M, Sinkorova Z. New Light on An Old Friend: Targeting PUMA in Radioprotection and Therapy of Cardiovascular and Neurodegenerative Diseases. Curr Drug Targets 2019; 19:1943-1957. [PMID: 29623837 DOI: 10.2174/1389450119666180406110743] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 03/27/2018] [Accepted: 04/02/2018] [Indexed: 11/22/2022]
Abstract
This review summarizes recent progress in understanding the role of p53-upregulated mediator of apoptosis (PUMA) in molecular pathways with respect to its potential therapeutic applications. Particular emphasis is given to the PUMA´s role in ionizing radiation-induced signalling as radiotoxicity of normal tissue is mediated mostly via apoptosis. PUMA and its p53-dependent and p53- independent induction are described and potential use as a new target for the development of radioprotective agents is suggested. Further implications, including targeting PUMA to prevent and treat cardiovascular and neurodegenerative diseases, are also discussed together with an overview of other therapeutic applications. Finally, basic chemical structures for the development of novel PUMA modulators such as pifithrine derivatives, kinase inhibitors or modulators of Bcl-2 protein family are described.
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Affiliation(s)
- Ales Tichy
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence in Brno, 500 01 Hradec Kralove, Czech Republic.,Biomedical Research Center, University Hospital, 500 05 Hradec Kralove, Czech Republic
| | - Jan Marek
- Biomedical Research Center, University Hospital, 500 05 Hradec Kralove, Czech Republic
| | - Radim Havelek
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, 500 03 Hradec Kralove, Czech Republic
| | - Jaroslav Pejchal
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence in Brno, 500 01 Hradec Kralove, Czech Republic
| | - Martina Seifrtova
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, 500 03 Hradec Kralove, Czech Republic
| | - Lenka Zarybnicka
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence in Brno, 500 01 Hradec Kralove, Czech Republic
| | - Alzbeta Filipova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence in Brno, 500 01 Hradec Kralove, Czech Republic
| | - Martina Rezacova
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, 500 03 Hradec Kralove, Czech Republic
| | - Zuzana Sinkorova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence in Brno, 500 01 Hradec Kralove, Czech Republic
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Rozsypalova A, Rosova B, Filipova A, Nikolov DH, Chloupkova R, Richter I, Proks J, Zachoval R, Matej R, Melichar B, Buchler T, Dvorak J. Negative prognostic significance of primary cilia, CD8+ tumor infiltrating lymphocytes and PD1+ cells expression in clear cell renal cancer. J BUON 2019; 24:1644-1651. [PMID: 31646820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
PURPOSE The aim of this study was to investigate the potential association and combined prognostic significance of the frequency of primary cilia (PC), programmed cell death protein-1 receptor (PD1) and CD8+ tumor infiltrating lymphocytes (TIL) in patients with clear cell renal cancer (ccRCC). METHODS The frequency of PC, PD1 expression and the frequency of intratumoral CD8+ TIL were evaluated in 104 ccRCC patients. RESULTS The median frequency of PC was 0.003. The expression of PD1+ cells were <5% in 52 patients, 5-25% in 34 patients and 26-50% in 13 patients and >50% in 5 patients. Intratumoral CD8+ TIL were evaluable in all patients: negative in 1 patient, <25% in 63, 26-50% in 29 and >50% in 11 patients. Overall survival (OS) according to the frequency of PC was significantly shorter in patients with higher frequency (≥0.002) than in patients with lower frequency (<0.002) (p<0.001). Median OS was significantly shorter in patients with higher (25%) CD8+ TIL and higher (>25%) PD1+ expression than in patients with lower (<25%) expression (4.6 vs. 97. years, p=0.006 and 2.9 vs. 8.9 years, p=0.006, respectively). CONCLUSIONS The present study provides the first data on the potential association and combined prognostic significance of frequency of PC, PD1+ cells and CD8+ TIL in patients with clear cell renal cancer.
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Affiliation(s)
- Aneta Rozsypalova
- 1Department of Oncology, First Medical Faculty, Charles University and Thomayer Hospital, Prague, Czech Republic
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Dvorak J, Rosova B, Filipova A, Hadzi Nikolov D, Dusek L, Rozsypalova A, Proks J, Richter I, Melichar B, Buchler T, Zachoval R, Matej R. The frequency of primary cilia, CD8+ tumor infiltrating lymphocytes and PD-1 expression in renal cell carcinoma of clear-cell type. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy269.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Affiliation(s)
- Alzbeta Filipova
- Department of Medical Biochemistry, Charles University in Prague, Faculty of Medicine, Hradec Králové
| | - Martina Seifrtova
- Department of Medical Biochemistry, Charles University in Prague, Faculty of Medicine, Hradec Králové
| | - Jaroslav Mokry
- Department of Histology and Embryology, Charles University in Prague, Faculty of Medicine, Hradec Králové
| | - Josef Dvorak
- Department of Oncology and Radiotherapy, Charles University in Prague, Faculty of Medicine and Teaching Hospital, Hradec Králové, Czech Republic
| | - Martina Rezacova
- Department of Medical Biochemistry, Charles University in Prague, Faculty of Medicine, Hradec Králové
| | - Stanislav Filip
- Department of Oncology and Radiotherapy, Charles University in Prague, Faculty of Medicine and Teaching Hospital, Hradec Králové, Czech Republic
| | - Daniel Diaz-Garcia
- Department of Histology and Embryology, Charles University in Prague, Faculty of Medicine, Hradec Králové
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Dvorak J, Melichar B, Filipova A, Grimova J, Grimova N, Rozsypalova A, Buka D, Voboril R, Zapletal R, Buchler T, Richter I, Buka D. Simulations of centriole of polarized centrosome as a monopole antenna in immune and viral synapses. J BUON 2018; 23:514-521. [PMID: 29745101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The immune synapse (IS) is a temporary interface between an antigen-presenting cell and an effector lymphocyte. Viral synapse is a molecularly organized cellular junction that is structurally similar to the IS. Primary cilium is considered as a functional homologue of the IS due to the morphological and functional similarities in architecture between both micotubule structures. It has been hypothesized that endogenous electromagnetic field in the cell is generated by a unique cooperating system between mitochondria and microtubules. We are extending this prior hypothesis of the endogenous electromagnetic field in the cell postulating that polarized centriole in immune and viral synapse could serve as a monopole antenna. This is an addition to our hypothesis that primary cilium could serve as a monopole antenna. We simulated the distribution of electric field of centriole of polarized centrosome as a monopole antenna in immune and viral synapse. Very weak electromagnetic field of polarized centriole of CD8+ T lymphocyte in IS can contribute to the transport of cytolytic granules into the attacked (cancer) cell. Analogically, very weak electromagnetic field of polarized centriole in viral synapse of infected CD4 cells can aid the transport of viruses (human immunodeficiency virus) to non-infected CD4 cells. We hypothesized that healthy organisms need these monopole antennas. If, during the neoplastic transformation, healthy cells lose monopole antennas in form of primary cilia, the IS aims to replace them by monopole antennas of polarized centrioles in IS to restore homeostasis.
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Affiliation(s)
- Josef Dvorak
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer Hospital, Prague, Czech Republic
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Dvorak J, Hadzi Nikolov D, Dusek L, Filipova A, Richter I, Buka D, Ryska A, Mokry J, Filip S, Melichar B, Buchler T, Abrahamova J. Association of the combined parameters including the frequency of primary cilia, CD8+ tumor infiltrating lymphocytes and PD-1 expression with the outcome in intestinal cancer. J BUON 2017; 22:1477-1487. [PMID: 29332341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
PURPOSE Primary cilium (PC) is considered to be a functional homologue of the immune synapse. Microtubule structures, PC of cancer associated fibroblasts and immune synapses between cytotoxic CD8+ tumor infiltrating lymphocytes (TILs) and cancer cells, are regularly found in varying amounts in the microenvironment of solid tumors. The purpose of this study was to find out the potential association and combined prognostic significance of the frequency of PC, PD-1 and CD8+ TILs in patients with intestinal cancer. METHODS The frequency of PC, programmed cell death protein-1 receptor (PD-1) expression and the frequency of stromal and intraepithelial CD8+TILs were evaluated in samples of colorectal adenocarcinoma (32 patiens) and small bowel cancer (8 patients). RESULTS The median frequency of PC was 0.25%. The expression of PD1 was <5% in 34 patients, 5-25% in 5 patients and 26-50% in 1 patient. The frequency of stromal CD8+ TILs was negative in 3 patients, <25% in 26, 26-50% in 10 and >50% in 1 patient, respectively. Intraepithelial CD8+ TILs were not detectable in 14, <25% in 24 and 26-50% in 2 patients, respectively. Statistically, the frequency of PC and PD-1 positivity were significantly associated (p=0.004). An association between the PC frequency and intraepithelial CD8+ TILs was of borderline statistical significance (p=0.059). An index combining the frequency of PC and stromal CD8+ TILs, but not the combination of frequency of PC and intraepithelial CD8+ TILs, was of borderline prognostic significance (p=0.067). CONCLUSIONS The present study provides the first data on the potential association and combined prognostic significance of frequency of PC, PD-1 and CD8+ TILs in patients with intestinal cancer.
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Affiliation(s)
- Josef Dvorak
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer Hospital, Prague, Czech Republic
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Kupec M, Dvorak J, Hadzi Nikolov D, Dusek L, Filipova A, Richter I, Buka D, Ryska A, Mokry J, Filip S, Melichar B, Buchler T, Abrahamova J. P-005 Prognostic significance of the frequency of primary cilia in cells of small bowel and colorectal adenocarcinoma. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Dvorak J, Hadzi Nikolov D, Dusek L, Filipova A, Richter I, Buka D, Ryska A, Mokry J, Filip S, Melichar B, Buchler T, Abrahamova J. Prognostic significance of the frequency of primary cilia in cells of small bowel and colorectal adenocarcinoma. J BUON 2016; 21:1233-1241. [PMID: 27837628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
PURPOSE The primary cilium is a solitary, sensory, immotile microtubule-based structure that arises from the centrosome and is projected from the surface of most human cell types. It has been hypothesized that primary cilia could serve as a tumor suppressor organelle. The objective of this pilot study was to investigate the presence and frequency of primary cilia in cells of small bowel and colorectal adenocarcinoma and to evaluate the prognostic significance of their frequency. METHODS The presence of primary cilia in cells in samples of small bowel (8 patients) and colorectal adenocarcinoma (32 patients) was evaluated. The primary cilia of cells were immunofluorescently labeled using primary monoclonal anti-acetylated agr;-tubulin antibody and cell nuclei were labeled using DAPI. RESULTS Primary cilia were identified in all examined specimens. The median frequency of primary cilia was 0.49% in cells of small bowel cancer and 0.22% in cells in colorectal cancer. Overall survival according to frequency of primary cilia in all intestinal adenocarcinomas was significantly longer in patients with higher frequency (≥ 0.187) than in patients with lower frequency of primary cilia (< 0.187) in univariate analysis (p=0.007) and also in the Cox proportional hazard model (p=0.032). Overall survival according to frequency of primary cilia in colorectal adenocarcinoma was significantly longer in patients with higher frequency (≥ 0.187) than in patients with lower frequency of primary cilia (< 0.187) (p=0.028). CONCLUSIONS The present pilot study provides the first evidence of the prognostic significance of the frequency of primary cilia in small bowel and colorectal adenocarcinoma. Because of significantly higher median frequency of primary cilia in the rare small bowel adenocarcinoma than in the frequent colorectal adenocarcinoma (p<0.001), the results of this study support a potential role for primary cilia as a biomarker in these types of cancer.
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Affiliation(s)
- Josef Dvorak
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer Hospital, Prague, Czech Republic
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Filipova A, Seifrtova M, Mokry J, Dvorak J, Rezacova M, Filip S, Diaz-Garcia D. Breast cancer and cancer stem cells: a mini-review. Tumori 2014; 100:363-9. [PMID: 25296584 DOI: 10.1700/1636.17886] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Breast cancer is the most common type of malignant disease in women worldwide. In developing countries the past few years have sustained an increasing incidence of this type of cancer. Currently, breast cancer is the second leading cause of death due to cancer in women. In 2008 alone it was diagnosed in more than 1 million patients and each year the number of breast cancer-related deaths is estimated to be ~450,000. The mortality rate in breast cancer patients has been decreasing over the years thanks to the development of early diagnostic methods and more effective treatments. But despite the new advances in cancer diagnosis and treatment, the risk of recurrence and metastasis is ever present. It has been theorized that cancer stem cells are involved in the process of tumor growth and metastases. Due to their self-renewing and differentiation capabilities, they are now considered the underlying factor in tumor recurrence and the main reason for therapy resistance. Therefore, the characterization of cancer stem cells may contribute to the development of more effective treatment strategies that should make it possible to eliminate cancer stem cells in order to prevent tumor relapse and metastasis in diagnosed patients.
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Dvorak J, Sitorova V, Nikolov DH, Filipova A, Ryska A, Melichar B, Richter I, Buka D, Mokry J, Filip S, Petera J. Primary cilia in gastrointestinal stromal tumors. Neoplasma 2014; 61:305-8. [PMID: 24824932 DOI: 10.4149/neo_2014_039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The primary cilium is a solitary, sensory, non-motile microtubule-based structure that arises from the centrosome and is projected from the surface of most human cells. The objective of the current pilot study was to conduct an investigation of presence and frequency of cilia in gastrointestinal stromal tumors (GIST).The presence of primary cilia in GIST was evaluated in 9 patients, including 8 primary tumors and 1 liver metastasis. In 2 patients the presence of primary cilia was evaluated not only in the primary tumor, but also in recurrence: in 1 patient in recurrence without previous treatment with imatinib and in 1 patient in recurrence after treatment with imatinib. The primary cilia of GIST cells were immunofluorescently stained with primary monoclonal anti-acetylated tubulin alpha antibody and cell nuclei with DAPI.We observed 9985 nuclei of cells of GISTs and 425 primary cilia in total. The median of frequency of primary cilia in cells of GISTs in all examined samples was 4.26%, in primary tumors was 4.32% and in metastases was 3.64%, respectively. This pilot study provides the evidence of the presence of primary cilia in GISTs in different organs. Primary cilia were identified in all examined cases of GIST, including primary tumors, metastases and recurrent lesions without and with previous treatment with imatinib.
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Seifrtova M, Havelek R, Soukup T, Filipova A, Mokry J, Rezacova M. Mitoxantrone ability to induce premature senescence in human dental pulp stem cells and human dermal fibroblasts. J Physiol Pharmacol 2013; 64:255-266. [PMID: 23756401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Accepted: 04/23/2013] [Indexed: 06/02/2023]
Abstract
UNLABELLED In this study we assessed the effects of the frequently used chemotherapeutic agent mitoxantrone (MTX) on dental pulp stem cells (DPSCs) and compared it with the response of human dermal fibroblasts (HDFs). DPSCs are valuable source of mesenchymal stem cells which may be extremely useful in a number of clinical applications. It is evident that both normal and tumor cells are being affected during therapy and characterization of these cells under genotoxic stress contributes to the evaluation of their safety usage. In the experiment cells were exposed to doses 5-150 nmol/l MTX. Proliferation of cells was detected by Z2 counter and viability by Vi-Cell XR using Trypan blue exclusion staining. Cell cycle analysis was determinated by flow cytometry, induction of apoptosis by monitoring the activities of caspases. The expression of key proteins was detected by Western blotting. Senescence was analyzed by activity of β-galactosidase and by detection of persisting DSBs-associated γH2AX foci. Exposure of both cell types to lower concentrations of MTX resulted in premature senescence (SIPS), which was accompanied with typical morphological changes, increased activity of senescence-associated β-galactosidase, persisting DSBs-associated γH2AX foci and cell cycle arrest in G2 phase. MTX provokes the activation of p53-p21(WAF1/Cip1) pathway in both cell types and activates cell-cycle inhibitor p16(INK4a) in HDFs, but not in DPSCs. Higher concentrations of MTX induced caspase-mediated apoptosis. CONCLUSIONS MTX induces apoptosis or SIPS in both cell types in dependency on MTX doses. Both pathways prevent the proliferation of cells with damaged DNA.
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Affiliation(s)
- M Seifrtova
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University in Prague, Czech Republic.
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Wesselinowa JM, Apostolov AT, Filipova A. Anharmonic effects in potassium-dihydrogen-phosphate-type ferroelectrics. Phys Rev B Condens Matter 1994; 50:5899-5904. [PMID: 9976958 DOI: 10.1103/physrevb.50.5899] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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