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Ziemiński R, Stupak A, Kwiatek M, Gęca T, Warowicka A, Hejne K, Kwaśniewska A, Goździcka-Józefiak A, Kwaśniewski W. Analysis of the Expression of LSF Transcription Factor in the Regulation of Transcription and TSG101 during the Neoplastic Transformation of Endometrial Cells. Cells 2024; 13:580. [PMID: 38607019 PMCID: PMC11011417 DOI: 10.3390/cells13070580] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/23/2024] [Accepted: 03/23/2024] [Indexed: 04/13/2024] Open
Abstract
Previous research indicates that carcinogenesis involves disrupting the functions of numerous genes, including factors involved in the regulation of transcription and cell proliferation. For these reasons, in endometrial carcinogenesis, we decided to investigate the expression of TSG101 (a suppressor of tumor transformation) and LSF (a transcription factor involved in numerous cellular processes, such as cell cycle regulation, cell growth, development, and apoptosis). LSF may be involved in the regulation of TSG101 expression. The research material consisted of endometrial cancer samples from 60 patients. The control group consisted of normal endometrium samples donated by 60 women undergoing surgery for benign diseases of the female reproductive organs. The samples were subjected to immunohistochemical staining with antibodies specific to TSG101 and LSF. Specific antibodies were used to identify TSG101 and LSF in the examined histopathological preparations. An approximately 14-fold lower risk of endometrial cancer development was observed in patients with TSG expression in more than 75% of the assessed cells (4% vs. 36%; OR = 0.07; p = 0.0182). There was a four-fold lower risk of endometrial cancer development in patients with LSF expression in more than 50% of the assessed cells (32% vs. 64%; OR = 0.26; p = 0.0262). A more than three-fold lower risk of endometrial cancer development was observed in patients with LSF expression in more than 75% of the assessed cells (24% vs. 52%; OR = 0.29; p = 0.0454). Endometrial cancer was diagnosed in those with a lower level of TSG101 expression than in those with a cancer-free endometrium. Decreased expression of TSG101 may be a marker of endometrial cancer, and increased expression of LSF when diagnosed with endometrial cancer may indicate greater advancement of the disease. These markers might be used as diagnostic and prognostic markers-however, there is a lack of a correlation between them.
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Affiliation(s)
- Rafał Ziemiński
- Department of Obstetrics and Pathology of Pregnancy, Medical University of Lublin, 20-059 Lublin, Poland; (R.Z.); (M.K.); (T.G.); (A.K.)
| | - Aleksandra Stupak
- Department of Obstetrics and Pathology of Pregnancy, Medical University of Lublin, 20-059 Lublin, Poland; (R.Z.); (M.K.); (T.G.); (A.K.)
| | - Maciej Kwiatek
- Department of Obstetrics and Pathology of Pregnancy, Medical University of Lublin, 20-059 Lublin, Poland; (R.Z.); (M.K.); (T.G.); (A.K.)
| | - Tomasz Gęca
- Department of Obstetrics and Pathology of Pregnancy, Medical University of Lublin, 20-059 Lublin, Poland; (R.Z.); (M.K.); (T.G.); (A.K.)
| | - Alicja Warowicka
- Department of Molecular Virology, Institute of Experimental Biology, Adam Mickiewicz University in Poznan, 61-712 Poznań, Poland; (A.W.)
| | - Karolina Hejne
- Department of Pathomorphology and Forensic Medicine, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 11-082 Olsztyn, Poland
| | - Anna Kwaśniewska
- Department of Obstetrics and Pathology of Pregnancy, Medical University of Lublin, 20-059 Lublin, Poland; (R.Z.); (M.K.); (T.G.); (A.K.)
| | - Anna Goździcka-Józefiak
- Department of Molecular Virology, Institute of Experimental Biology, Adam Mickiewicz University in Poznan, 61-712 Poznań, Poland; (A.W.)
| | - Wojciech Kwaśniewski
- Department of Gynecology Oncology and Gynecology, Medical University of Lublin, 20-059 Lublin, Poland
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2
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Skibinska M, Warowicka A, Koroniak H, Cytlak T, Crousse B. Synthesis, Reactivity, and Antibacterial Activity of gem-Difluoroalkene, Difluoromethyl, and Trifluoromethyl β-Lactams. Org Lett 2024; 26:692-696. [PMID: 38227548 PMCID: PMC10825868 DOI: 10.1021/acs.orglett.3c04094] [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: 12/05/2023] [Revised: 01/05/2024] [Accepted: 01/11/2024] [Indexed: 01/17/2024]
Abstract
New gem-difluoroalkenes were synthesized by the dehydrofluorination of the corresponding 4-CF3-β-lactams. An unexpected rearrangement mechanism of the ester moiety dependent on a stabilizing negative charge was observed. Hydrogenation to 4-CHF2-β-lactams was successful from gem-difluoro-β-lactams.
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Affiliation(s)
- Monika Skibinska
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
| | - Alicja Warowicka
- Faculty
of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego
6, 61-614 Poznań, Poland
| | - Henryk Koroniak
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
| | - Tomasz Cytlak
- Faculty
of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego
8, 61-614 Poznań, Poland
- Centre
for Advanced Technologies, Adam Mickiewicz
University, Uniwersytetu
Poznańskiego 10, 61-614 Poznań, Poland
| | - Benoît Crousse
- BioCIS
UMR 8076 CNRS, Building Henri Moissan, Université
Paris-Saclay, 17 avenue
des sciences, 91400 Orsay, France
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Ejsmont A, Warowicka A, Broniarczyk J, Goscianska J. The synergistic effect of Cu-MOF nanoparticles and immunomodulatory agent on SARS-CoV-2 inhibition. Chem Commun (Camb) 2023; 59:4907-4910. [PMID: 37009724 DOI: 10.1039/d3cc00894k] [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] [Indexed: 03/29/2023]
Abstract
In this work, HKUST-1 and Cu-BDC nanoparticles were used as delivery systems for the early anti-COVID-19 drug, hydroxychloroquine. The antiviral MOF/drug combinations significantly reduced the infectivity of SARS-CoV-2, which can...
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Affiliation(s)
- Aleksander Ejsmont
- Adam Mickiewicz University, Faculty of Chemistry, Department of Chemical Technology, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland.
| | - Alicja Warowicka
- Adam Mickiewicz University, Faculty of Biology, Department of Molecular Virology, Institute of Experimental Biology, Uniwersytetu Poznańskiego 6, Poznań 61-614, Poland
- NanoBioMedical Centre, Wszechnicy Piastowskiej 3, Poznań 61-614, Poland
| | - Justyna Broniarczyk
- Adam Mickiewicz University, Faculty of Biology, Department of Molecular Virology, Institute of Experimental Biology, Uniwersytetu Poznańskiego 6, Poznań 61-614, Poland
| | - Joanna Goscianska
- Adam Mickiewicz University, Faculty of Chemistry, Department of Chemical Technology, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland.
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4
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Mazur O, Bałdysz S, Warowicka A, Nawrot R. Tap the sap - investigation of latex-bearing plants in the search of potential anticancer biopharmaceuticals. Front Plant Sci 2022; 13:979678. [PMID: 36388598 PMCID: PMC9664067 DOI: 10.3389/fpls.2022.979678] [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] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Latex-bearing plants have been in the research spotlight for the past couple of decades. Since ancient times their extracts have been used in folk medicine to treat various illnesses. Currently they serve as promising candidates for cancer treatment. Up to date there have been several in vitro and in vivo studies related to the topic of cytotoxicity and anticancer activity of extracts from latex-bearing plants towards various cell types. The number of clinical studies still remains scarce, however, over the years the number is systematically increasing. To the best of our knowledge, the scientific community is still lacking in a recent review summarizing the research on the topic of cytotoxicity and anticancer activity of latex-bearing plant extracts. Therefore, the aim of this paper is to review the current knowledge on in vitro and in vivo studies, which focus on the cytotoxicity and anticancer activities of latex-bearing plants. The vast majority of the studies are in vitro, however, the interest in this topic has resulted in the substantial growth of the number of in vivo studies, leading to a promising number of plant species whose latex can potentially be tested in clinical trials. The paper is divided into sections, each of them focuses on specific latex-bearing plant family representatives and their potential anticancer activity, which in some instances is comparable to that induced by commonly used therapeutics currently available on the market. The cytotoxic effect of the plant's crude latex, its fractions or isolated compounds, is analyzed, along with a study of cell apoptosis, chromatin condensation, DNA damage, changes in gene regulation and morphology changes, which can be observed in cell post plant extract addition. The in vivo studies go beyond the molecular level by showing significant reduction of the tumor growth and volume in animal models. Additionally, we present data regarding plant-mediated biosynthesis of nanoparticles, which is regarded as a new branch in plant latex research. It is solely based on the green-synthesis approach, which presents an interesting alternative to chemical-based nanoparticle synthesis. We have analyzed the cytotoxic effect of these particles on cells. Data regarding the cytotoxicity of such particles raises their potential to be involved in the design of novel cancer therapies, which further underlines the significance of latex-bearing plants in biotechnology. Throughout the course of this review, we concluded that plant latex is a rich source of many compounds, which can be further investigated and applied in the design of anticancer pharmaceuticals. The molecules, to which this cytotoxic effect can be attributed, include alkaloids, flavonoids, tannins, terpenoids, proteases, nucleases and many novel compounds, which still remain to be characterized. They have been studied extensively in both in vitro and in vivo studies, which provide an excellent starting point for their rapid transfer to clinical studies in the near future. The comprehensive study of molecules from latex-bearing plants can result in finding a promising alternative to several pharmaceuticals on the market and help unravel the molecular mode of action of latex-based preparations.
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Affiliation(s)
- Oliwia Mazur
- Department of Molecular Virology, Institute of Experimental Biology, Adam Mickiewicz University, Poznań, Poland
| | - Sophia Bałdysz
- Department of Molecular Virology, Institute of Experimental Biology, Adam Mickiewicz University, Poznań, Poland
| | - Alicja Warowicka
- Department of Molecular Virology, Institute of Experimental Biology, Adam Mickiewicz University, Poznań, Poland
- NanoBioMedical Centre, Adam Mickiewicz University, Poznań, Poland
| | - Robert Nawrot
- Department of Molecular Virology, Institute of Experimental Biology, Adam Mickiewicz University, Poznań, Poland
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5
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Nawrot R, Warowicka A, Rudzki PJ, Musidlak O, Dolata KM, Musijowski J, Stolarczyk EU, Goździcka-Józefiak A. Combined Protein and Alkaloid Research of Chelidonium majus Latex Reveals CmMLP1 Accompanied by Alkaloids with Cytotoxic Potential to Human Cervical Carcinoma Cells. Int J Mol Sci 2021; 22:ijms222111838. [PMID: 34769268 PMCID: PMC8584587 DOI: 10.3390/ijms222111838] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 10/25/2021] [Accepted: 10/28/2021] [Indexed: 12/19/2022] Open
Abstract
Chelidonium majus L. is a latex-bearing plant used in traditional folk medicine to treat human papillomavirus (HPV)-caused warts, papillae, and condylomas. Its latex and extracts are rich in many low-molecular compounds and proteins, but there is little or no information on their potential interaction. We describe the isolation and identification of a novel major latex protein (CmMLP1) composed of 147 amino acids and present a model of its structure containing a conserved hydrophobic cavity with high affinity to berberine, 8-hydroxycheleritrine, and dihydroberberine. CmMLP1 and the accompanying three alkaloids were present in the eluted chromatographic fractions of latex. They decreased in vitro viability of human cervical cancer cells (HPV-negative and HPV-positive). We combined, for the first time, research on macromolecular and low-molecular-weight compounds of latex-bearing plants in contrast to other studies that investigated proteins and alkaloids separately. The observed interaction between latex protein and alkaloids may influence our knowledge on plant defense. The proposed toolbox may help in further understanding of plant disease resistance and in pharmacological research.
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Affiliation(s)
- Robert Nawrot
- Molecular Virology Research Unit, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; (O.M.); (K.M.D.); (A.G.-J.)
- Correspondence: ; Tel.: +48-61-829-5931
| | - Alicja Warowicka
- Department of Animal Physiology and Developmental Biology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland;
- NanoBioMedical Centre, Adam Mickiewicz University, Poznań, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland
| | - Piotr Józef Rudzki
- Łukasiewicz Research Network—Pharmaceutical Research Institute, Rydygiera Street 8, 01-793 Warsaw, Poland; (P.J.R.); (J.M.); (E.U.S.)
| | - Oskar Musidlak
- Molecular Virology Research Unit, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; (O.M.); (K.M.D.); (A.G.-J.)
| | - Katarzyna Magdalena Dolata
- Molecular Virology Research Unit, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; (O.M.); (K.M.D.); (A.G.-J.)
| | - Jacek Musijowski
- Łukasiewicz Research Network—Pharmaceutical Research Institute, Rydygiera Street 8, 01-793 Warsaw, Poland; (P.J.R.); (J.M.); (E.U.S.)
| | - Elżbieta Urszula Stolarczyk
- Łukasiewicz Research Network—Pharmaceutical Research Institute, Rydygiera Street 8, 01-793 Warsaw, Poland; (P.J.R.); (J.M.); (E.U.S.)
| | - Anna Goździcka-Józefiak
- Molecular Virology Research Unit, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; (O.M.); (K.M.D.); (A.G.-J.)
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6
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Nawrot R, Warowicka A, Musidlak O, Węglewska M, Bałdysz S, Goździcka-Józefiak A. Antiviral compounds isolated from plants. Postepy Biochem 2020; 66:356-372. [PMID: 33470074 DOI: 10.18388/pb.2020_361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 12/13/2020] [Indexed: 11/10/2022]
Abstract
Viruses are intracellular pathogens which utilize a number of host metabolic processes for virus replication in addition to proteins which
are encoded for virus itself. Therefore, an effective antiviral drug must interfere with virus encoded proteins without affecting any cellular
metabolic processes. Unfortunately, many antiviral drugs that have an inhibitory effect on virus replication, also have an inhibitory effect on
molecular processes in infected, as well as uninfected, cells. There is currently no approved remedy for many viruses. Plants represent a large
potential source of antiviral agents, such as: alkaloids, flavonoids, phenolic acids, phenylpropanoids, lignins, terpenoids, quinine, tannins, thiophenes, polyacetylenes or proteins. Some of them possess broad spectrum of antiviral activity.
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Affiliation(s)
- Robert Nawrot
- Pracownia Wirusologii Molekularnej, Wydział Biologii, Uniwersytet im. Adama Mickiewicza w Poznaniu.
| | - Alicja Warowicka
- Zakład Fizjologii i Biologii Rozwoju Zwierząt, Uniwersytet im.Adama Mickiewicza w Poznaniu.
| | - Oskar Musidlak
- Pracownia Wirusologii Molekularnej, Uniwersytet im.Adama Mickiewicza w Poznaniu.
| | - Martyna Węglewska
- Pracownia Wirusologii Molekularnej, Uniwersytet im.Adama Mickiewicza w Poznaniu.
| | - Sophia Bałdysz
- Pracownia Wirusologii Molekularnej, Uniwersytet im.Adama Mickiewicza w Poznaniu.
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7
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Warowicka A, Nawrot R, Broniarczyk J, Węglewska M, Goździcka-Józefiak A. Oncogenic viruses and cancer. Postepy Biochem 2020; 66:336-355. [PMID: 33470075 DOI: 10.18388/pb.2020_360] [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] [Received: 12/13/2020] [Accepted: 12/13/2020] [Indexed: 11/10/2022]
Abstract
Oncogenic viruses (oncoviruses) are implicated in approximately 12% of all human cancers. Currently, the viruses known to cause human cancer are: Hepatitis B and C viruses (HBV and HCV), Human Papillomaviruses (HPV), Merkel Cell Polyomavirus (MCV), Human Herpesvirus-8 (HHV-8), Epstein-Barr Virus (EBV) and Human T-cell lymphotropic virus-1 (HTLV-1). However, oncoviruses are not complete carcinogens, need additional factors andisplay different roles in transformation. Oncoviruses can directly disrupt important regulatory cell genes by inserting virus genom into the DNA of the host cell. They also contain their own genes that damage the regulation of the cell. Some viruses have v-onc that cause disregulation of cellular processes and can lead to cancerous growth.
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Affiliation(s)
- Alicja Warowicka
- Zakład Fizjologii i Biologii Rozwoju Zwierząt, Uniwersytet im.Adama Mickiewicza w Poznaniu.
| | - Robert Nawrot
- Pracownia Wirusologii Molekularnej, Uniwersytet im.Adama Mickiewicza w Poznaniu.
| | - Justyna Broniarczyk
- Pracownia Wirusologii Molekularnej, Uniwersytet im.Adama Mickiewicza w Poznaniu.
| | - Martyna Węglewska
- Pracownia Wirusologii Molekularnej, Uniwersytet im.Adama Mickiewicza w Poznaniu.
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Warowicka A, Popenda Ł, Bartkowiak G, Musidlak O, Litowczenko-Cybulska J, Kuźma D, Nawrot R, Jurga S, Goździcka-Józefiak A. Protoberberine compounds extracted from Chelidonium majus L. as novel natural photosensitizers for cancer therapy. Phytomedicine 2019; 64:152919. [PMID: 31465980 DOI: 10.1016/j.phymed.2019.152919] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND It has been shown that secondary metabolites occur in Chelidonium majus L. (C. majus) crude extract and milky sap (alkaloids such as berberine, coptisine, chelidonine, chelerythrine, sanguinarine, and protopine) are biologically active compounds with a wide spectrum of pharmacological functions. Berberine, an isoquinoline alkaloid extracted from plants, possesses a wide range of biological activities, including inhibition of growth of a variety of cancer cell lines. PURPOSE AND STUDY DESIGN In the present study, we investigated the potential anticancer effect of a protoberberine alkaloidal fraction (BBR-F) isolated from the medicinal plant C. majus on HeLa and C33A cervical cancer cells after light irradiation (PDT treatment). METHODS BBR-F was prepared from an ethanolic extract of stems of C. majus. Identification of alkaloidal compounds was performed using high-performance liquid chromatography - mass spectrometry (HPLC/ESI-MS) and nuclear magnetic resonance (NMR) spectroscopy. BBR-F was then biologically evaluated for its anticancer properties. Cytotoxic activity after PDT treatment and without light irradiation (dark cytotoxicity) was determined by colorimetric WST-1 assay. The impact of the protoberberine alkaloidal fraction on the morphology and function of the cells was assessed by fluorescence and confocal microscopy as well as by flow cytometric analysis. To investigate the proinflammatory effect of the extracted natural BBR-F, nitric oxide concentration was determined using the Griess method. RESULTS An effective reduction in HeLa and C33A cell viability was observed after PDT treatment of BBR-F treated cells. Furthermore, microscopic analysis identified various morphological changes in the studied cells that occurred during apoptosis. Apoptosis of HeLa and C33A cells was also characterized by biochemical changes in cell membrane composition, activation of intracellular caspases, disruption of the mitochondrial membrane potential (Δψm) and reactive oxygen species (ROS) generation. CONCLUSION Our results strongly suggest that the components of the natural plant protoberberine fraction (BBR-F) extracted from C. majus may represent promising novel photosensitive agents and can be applied in cancer photodynamic therapy as natural photosensitizers.
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Affiliation(s)
- Alicja Warowicka
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, Umultowska 85, Poznań 61-614, Poland; Department of Animal Physiology and Development, Institute of Experimental Biology, Adam Mickiewicz University in Poznań, Umultowska 89, Poznań 61-614, Poland.
| | - Łukasz Popenda
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, Umultowska 85, Poznań 61-614, Poland
| | - Grażyna Bartkowiak
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, Umultowska 85, Poznań 61-614, Poland; Department of Supramolecular Chemistry, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Poland
| | - Oskar Musidlak
- Department of Molecular Virology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Poland
| | - Jagoda Litowczenko-Cybulska
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, Umultowska 85, Poznań 61-614, Poland; Department of Molecular Virology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Poland
| | - Dorota Kuźma
- Department of Molecular Virology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Poland
| | - Robert Nawrot
- Department of Molecular Virology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Poland
| | - Stefan Jurga
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, Umultowska 85, Poznań 61-614, Poland
| | - Anna Goździcka-Józefiak
- Department of Molecular Virology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University in Poznań, Poland
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9
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Maciejewska BM, Wychowaniec JK, Woźniak-Budych M, Popenda Ł, Warowicka A, Golba K, Litowczenko J, Fojud Z, Wereszczyńska B, Jurga S. UV cross-linked polyvinylpyrrolidone electrospun fibres as antibacterial surfaces. Sci Technol Adv Mater 2019; 20:979-991. [PMID: 31692919 PMCID: PMC6818115 DOI: 10.1080/14686996.2019.1667737] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 09/11/2019] [Accepted: 09/11/2019] [Indexed: 05/08/2023]
Abstract
Many bacteria become progressively more resistant to antibiotics and it remains a challenging task to control their overall levels. Polymers combined with active biomolecules come to the forefront for the design of antibacterial materials that can address this encounter. In this work, we investigated the photo-crosslinking approach of UV-sensitive benzophenone molecule (BP) with polyvinylpyrrolidone (PVP) polymer within electrospun fibres. The BP and PVP solutions allowed fabricating polymer mats that were subsequently functionalised with antibacterial lysozyme. The physical properties of the crosslinked electrospun fibres were investigated by scanning electron microscopy and atomic force microscopy. The average diameter of the obtained fibres decreased from 290 ± 50 nm to 270 ± 70 nm upon the addition of the crosslinking molecules and then to 240 ± 80 nm and 180 ± 90 nm after subsequent crosslinking reaction at an increasing time: 3 and 5 h, respectively. The peak force quantitative nanomechanical mapping (PF-QNM) indicated the increase of DMT modulus of obtained cross-linked fibres from 4.1 ± 0.8 GPa to 7.2 ± 0.5 GPa. Furthermore, the successful crosslinking reaction of PVP and BP solution into hydrogels was investigated in terms of examining photo-crosslinking mechanism and was confirmed by rheology, Raman, Fourier transform infrared and nuclear magnetic resonance. Finally, lysozyme was successfully encapsulated within cross-linked PVP-BP hydrogels and these were successfully electrospun into mats which were found to be as effective antibacterial agents as pure lysozyme molecules. The dissolution rate of photo cross-linked PVP mats was observed to increase in comparison to pure PVP electrospun mats which opened a potential route for their use as antibacterial, on-demand, dissolvable coatings for various biomedical applications.
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Affiliation(s)
| | | | | | - Łukasz Popenda
- NanoBioMedical Centre, Adam Mickiewicz University, Poznań, Poland
| | - Alicja Warowicka
- NanoBioMedical Centre, Adam Mickiewicz University, Poznań, Poland
- Department of Animal Physiology and Development, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Klaudia Golba
- NanoBioMedical Centre, Adam Mickiewicz University, Poznań, Poland
| | - Jagoda Litowczenko
- NanoBioMedical Centre, Adam Mickiewicz University, Poznań, Poland
- Department of Molecular Virology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Zbigniew Fojud
- Department of Macromolecular Physics, Faculty of Physics, Adam Mickiewicz University, Poznań, Poland
| | - Beata Wereszczyńska
- NanoBioMedical Centre, Adam Mickiewicz University, Poznań, Poland
- Department of Macromolecular Physics, Faculty of Physics, Adam Mickiewicz University, Poznań, Poland
| | - Stefan Jurga
- NanoBioMedical Centre, Adam Mickiewicz University, Poznań, Poland
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10
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Litowczenko J, Maciejewska BM, Wychowaniec JK, Kościński M, Jurga S, Warowicka A. Groove‐patterned surfaces induce morphological changes in cells of neuronal origin. J Biomed Mater Res A 2019; 107:2244-2256. [DOI: 10.1002/jbm.a.36733] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 05/15/2019] [Accepted: 05/20/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Jagoda Litowczenko
- NanoBioMedical CentreAdam Mickiewicz University Poznań Poland
- Department of Molecular Virology, Faculty of BiologyAdam Mickiewicz University Poznań Poland
| | | | - Jacek K. Wychowaniec
- NanoBioMedical CentreAdam Mickiewicz University Poznań Poland
- School of ChemistryUniversity College Dublin Dublin Ireland
| | - Mikołaj Kościński
- NanoBioMedical CentreAdam Mickiewicz University Poznań Poland
- Department of Physics and Biophysics, Faculty of Food Science and NutritionPoznań University of Life Sciences Poznań Poland
| | - Stefan Jurga
- NanoBioMedical CentreAdam Mickiewicz University Poznań Poland
| | - Alicja Warowicka
- NanoBioMedical CentreAdam Mickiewicz University Poznań Poland
- Department of Animal Physiology and Development, Institute of Experimental BiologyAdam Mickiewicz University Poznań Poland
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11
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Skupin-Mrugalska P, Sobotta L, Warowicka A, Wereszczynska B, Zalewski T, Gierlich P, Jarek M, Nowaczyk G, Kempka M, Gapinski J, Jurga S, Mielcarek J. Theranostic liposomes as a bimodal carrier for magnetic resonance imaging contrast agent and photosensitizer. J Inorg Biochem 2018; 180:1-14. [DOI: 10.1016/j.jinorgbio.2017.11.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 11/03/2017] [Accepted: 11/27/2017] [Indexed: 01/17/2023]
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12
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Ivashchenko O, Coy E, Peplinska B, Jarek M, Lewandowski M, Załęski K, Warowicka A, Wozniak A, Babutina T, Jurga-Stopa J, Dolinsek J, Jurga S. Influence of silver content on rifampicin adsorptivity for magnetite/Ag/rifampicin nanoparticles. Nanotechnology 2017; 28:055603. [PMID: 28029097 DOI: 10.1088/1361-6528/28/5/055603] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Magnetite nanoparticles (NPs) decorated with silver (magnetite/Ag) are intensively investigated due to their application in the biomedical field. We demonstrate that the increase of silver content on the surface of nanoparticles improves the adsorptivity of antibiotic rifampicin as well as antibacterial properties. The use of ginger extract allowed to improve the silver nucleation on the magnetite surface that resulted in an increase of silver content. Physicochemical and functional characterization of magnetite/Ag NPs was performed. Our results show that 5%-10% of silver content in magnetite/Ag NPs is already sufficient for antimicrobial properties against Streptococcus salivarius and Staphylococcus aureus. The rifampicin molecules on the magnetite/Ag NPs surface made the spectrum of antimicrobial activity wider. Cytotoxicity evaluation of the magnetite/Ag/rifampicin NPs showed no harmful action towards normal human fibroblasts, whereas the effect on human embryonic kidney cell viability was time and dose dependent.
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13
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Baranowska-Korczyc A, Jasiurkowska-Delaporte M, Maciejewska BM, Warowicka A, Coy LE, Zalewski T, Kozioł KK, Jurga S. PEG–MWCNT/Fe hybrids as multi-modal contrast agents for MRI and optical imaging. RSC Adv 2016. [DOI: 10.1039/c6ra09191a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study examines the use of oxidized multi-walled carbon nanotube/iron (O-MWCNT/Fe) nanohybrids modified with polyethylene glycol (PEG) as multifunctional cellular imaging agents for magnetic resonance imaging (MRI) and fluorescence microscopy.
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Affiliation(s)
| | | | - Barbara M. Maciejewska
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
- Department of Macromolecular Physics
| | - Alicja Warowicka
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
| | - L. Emerson Coy
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
| | - Tomasz Zalewski
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
| | - Krzysztof K. Kozioł
- University of Cambridge
- Department of Materials Science and Metallurgy
- Cambridge CB3 0FS
- UK
| | - Stefan Jurga
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
- Department of Macromolecular Physics
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14
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Baranowska-Korczyc A, Warowicka A, Jasiurkowska-Delaporte M, Grześkowiak B, Jarek M, Maciejewska BM, Jurga-Stopa J, Jurga S. Antimicrobial electrospun poly(ε-caprolactone) scaffolds for gingival fibroblast growth. RSC Adv 2016. [DOI: 10.1039/c6ra02486f] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study discusses the value of polymer electrospun materials in three-dimensional (3D) scaffolds and antibacterial wound dressings for potential dental applications.
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Affiliation(s)
| | - Alicja Warowicka
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
| | | | | | - Marcin Jarek
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
| | - Barbara M. Maciejewska
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
- Department of Macromolecular Physics
| | - Justyna Jurga-Stopa
- Department of Biomaterials and Experimental Dentistry
- Poznań University of Medical Sciences
- PL-61701 Poznań
- Poland
| | - Stefan Jurga
- NanoBioMedical Centre
- Adam Mickiewicz University
- PL-61614 Poznań
- Poland
- Department of Macromolecular Physics
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15
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Deptuła T, Warowicka A, Woźniak A, Grzeszkowiak M, Jarzębski M, Bednarowicz M, Patkowski A, Słomski R. Cytotoxicity of thermo-responsive polymeric nanoparticles based on N-isopropylacrylamide for potential application as a bioscaffold. Acta Biochim Pol 2015; 62:311-6. [PMID: 25980357 DOI: 10.18388/abp.2015_1007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 05/02/2015] [Accepted: 05/06/2015] [Indexed: 11/10/2022]
Abstract
Polymeric nanoparticles based on poly-N-isopropylacrylamide (pNiPAM NPs) and their bio-medical applications have been widely investigated in recent years. These tunable nanoparticles are considered to be great candidates for drug delivery systems, biosensors and bioanalytical devices. Thus, the biocompatibility and toxicity of these nanoparticles is clearly a crucial issue. In this work, the cytotoxicity of thermo-responsive pNiPAM nanoparticles was studied, followed by a detailed analysis of the NPs morphology in growing cell cultures and their 3D structure. Cytotoxic examination was conducted for two cell cultures - HeLa (cervical cancer cell line) and HeK293 (human embryonic kidney cell line), employing MTT (3-4, 5-dimethylthiazol-2-yl-2, 5-diphenyltetrazolium bromide) assay and viability tests. We used Cryo-SEM (scanning electron microscopy) and fluorescence microscopy (IN Cell Analyzer) in order to investigate the morphological structure of the polymer network. We show that pNiPAM nanoparticles do not exhibit any cytotoxicity effects on the investigated cell lines. Additionally, we report that the pNiPAM nanoparticle based scaffold promotes cell growth.
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Affiliation(s)
- Tobiasz Deptuła
- Molecular Biophysics Division, Adam Mickiewicz University, Faculty of Physics, Poznań, Poland
- NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland
| | - Alicja Warowicka
- NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland
| | - Anna Woźniak
- NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland
| | - Mikołaj Grzeszkowiak
- NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland
- Division of Macromolecular Physics, Faculty of Physics, Adam Mickiewicz University, Poznań, Poland
| | - Maciej Jarzębski
- Molecular Biophysics Division, Adam Mickiewicz University, Faculty of Physics, Poznań, Poland
- NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland
| | | | - Adam Patkowski
- Molecular Biophysics Division, Adam Mickiewicz University, Faculty of Physics, Poznań, Poland
- NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland
| | - Ryszard Słomski
- NanoBioMedical Center, Adam Mickiewicz University, Poznań, Poland
- Department of Biochemistry and Biotechnology, Poznan University of Life Sciences, Poznań, Poland
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16
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Ivashchenko O, Lewandowski M, Peplińska B, Jarek M, Nowaczyk G, Wiesner M, Załęski K, Babutina T, Warowicka A, Jurga S. Synthesis and characterization of magnetite/silver/antibiotic nanocomposites for targeted antimicrobial therapy. Mater Sci Eng C Mater Biol Appl 2015; 55:343-59. [PMID: 26117765 DOI: 10.1016/j.msec.2015.05.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 03/30/2015] [Accepted: 05/07/2015] [Indexed: 10/23/2022]
Abstract
The article is devoted to preparation and characterization of magnetite/silver/antibiotic nanocomposites for targeted antimicrobial therapy. Magnetite nanopowder was produced by thermochemical technique; silver was deposited on the magnetite nanoparticles in the form of silver clusters. Magnetite/silver nanocomposite was investigated by XRD, SEM, TEM, AFM, XPS, EDX techniques. Adsorptivity of magnetite/silver nanocomposite towards seven antibiotics from five different groups was investigated. It was shown that rifampicin, doxycycline, ceftriaxone, cefotaxime and doxycycline may be attached by physical adsorption to magnetite/silver nanocomposite. Electrostatic surfaces of antibiotics were modeled and possible mechanism of antibiotic attachment is considered in this article. Raman spectra of magnetite, magnetite/silver and magnetite/silver/antibiotic were collected. It was found that it is difficult to detect the bands related to antibiotics in the magnetite/silver/antibiotic nanocomposite spectra due to their overlap by the broad carbon bands of magnetite nanopowder. Magnetic measurements revealed that magnetic saturation of the magnetite/silver/antibiotic nanocomposites decreased on 6-19 % in comparison with initial magnetite nanopowder. Pilot study of antimicrobial properties of the magnetite/silver/antibiotic nanocomposites were performed towards Bacillus pumilus.
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Affiliation(s)
- Olena Ivashchenko
- Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Kyiv 03142, Ukraine; NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland.
| | - Mikołaj Lewandowski
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland; Institute of Molecular Physics, Polish Academy of Sciences, 60-179 Poznan, Poland
| | - Barbara Peplińska
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Marcin Jarek
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Grzegorz Nowaczyk
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Maciej Wiesner
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Karol Załęski
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Tetyana Babutina
- Frantsevich Institute for Problems of Materials Science, NAS of Ukraine, Kyiv 03142, Ukraine
| | - Alicja Warowicka
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland
| | - Stefan Jurga
- NanoBioMedical Centre, Adam Mickiewicz University, 61614 Poznan, Poland; Department of Macromolecular Physics, Adam Mickiewicz University, 61614 Poznan, Poland
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17
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Durzyńska J, Przysiecka Ł, Nawrot R, Barylski J, Nowicki G, Warowicka A, Musidlak O, Goździcka-Józefiak A. Viral and Other Cell-Penetrating Peptides as Vectors of Therapeutic Agents in Medicine. J Pharmacol Exp Ther 2015; 354:32-42. [DOI: 10.1124/jpet.115.223305] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 04/27/2015] [Indexed: 12/20/2022] Open
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18
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Skorczyk-Werner A, Pawłowski P, Michalczuk M, Warowicka A, Wawrocka A, Wicher K, Bakunowicz-Łazarczyk A, Krawczyński MR. Fundus albipunctatus: review of the literature and report of a novel RDH5 gene mutation affecting the invariant tyrosine (p.Tyr175Phe). J Appl Genet 2015; 56:317-27. [PMID: 25820994 PMCID: PMC4543405 DOI: 10.1007/s13353-015-0281-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 02/26/2015] [Accepted: 03/05/2015] [Indexed: 12/17/2022]
Abstract
Fundus albipunctatus (FA) is a rare, congenital form of night blindness with rod system impairment, characterised by the presence of numerous small, white-yellow retinal lesions. FA belongs to a heterogenous group of so-called flecked retina syndromes. This disorder shows autosomal recessive inheritance and is caused mostly by mutations in the RDH5 gene. This gene encodes the enzyme that is a part of the visual cycle, the 11-cis retinol dehydrogenase. This study is a brief review of the literature on FA and a report of the first molecular evidence for RDH5 gene mutation in a Polish patient with this rare disorder. We present a novel pathogenic RDH5 gene mutation in a 16-year-old female patient with symptoms of night blindness. The patient underwent ophthalmological examinations, including colour vision testing, fundus photography, automated visual field testing, full-field electroretinography (ERG) and spectral optical coherent tomography (SOCT). The patient showed typical FA ERG records, the visual field was constricted and fundus examination revealed numerous characteristic, small, white-yellowish retinal lesions. DNA sequencing of the RDH5 gene coding sequence (exons 2–5) enabled the detection of the homozygous missense substitution c.524A > T (p.Tyr175Phe) in exon 3. This is the first report of RDH5 gene mutation that affects the invariant tyrosine, one of the most conserved amino acid residues in short-chain alcohol dehydrogenases/reductases (SDRs), crucial for these enzymes’ activity. The location of this substitution, together with its predicted influence on the protein function, indicate that the p.Tyr175Phe mutation is the cause of FA in our patient.
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Affiliation(s)
- Anna Skorczyk-Werner
- Department of Medical Genetics, Poznan University of Medical Sciences, 8, Rokietnicka Street, 60-806, Poznań, Poland,
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19
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Broniarczyk JK, Warowicka A, Kwaśniewska A, Wohuń-Cholewa M, Kwaśniewski W, Goździcka-Józefiak A. Expression of TSG101 protein and LSF transcription factor in HPV-positive cervical cancer cells. Oncol Lett 2014; 7:1409-1413. [PMID: 24765146 PMCID: PMC3997686 DOI: 10.3892/ol.2014.1967] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [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: 06/27/2013] [Accepted: 01/07/2014] [Indexed: 11/23/2022] Open
Abstract
Our previous study demonstrated a decreased expression of tumor susceptibility gene 101 (TSG101) in cervical cancer cells. To identify the mechanism responsible for TSG101 downregulation during cervical cancer development, we analyzed the TSG101 promoter using cis-element cluster finder software. One of the transcription factors whose binding site was detected in the TSG101 promoter was late SV40 factor (LSF). The aim of this study was to analyze the TSG101 protein and LSF expression levels during cervical cancer development. Immunohistochemical analysis confirmed a previously observed decreased expression of TSG101, whereas quantitative polymerase chain reaction (qPCR) and immunohistochemistry analysis revealed high expression of LSF in cervical, precancer and cancer cells compared with human papillomavirus (HPV)-negative non-cancer samples. High expression of LSF in cervical cancer HPV-positive cells suggests that this protein may be important in the regulation of TSG101 expression, as well as in cervical carcinogenesis. The role of LSF as a mediator in cervical cancer development must be confirmed in future studies.
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Affiliation(s)
| | - Alicja Warowicka
- NanoBioMedical Centre, Adam Mickiewicz University, Poznań 61-614, Poland
| | - Anna Kwaśniewska
- Department of Obstetrics and Gynecology, Medical University of Lublin, Lublin 20-081, Poland
| | - Maria Wohuń-Cholewa
- Department of Cell Biology, University of Medical Science, Poznan 60-806, Poland
| | - Wojciech Kwaśniewski
- First Department of Oncological Gynecology and Gynecology, Medical University of Lublin, Lublin 20-081, Poland
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20
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Warowicka A, Kwasniewska A, Gozdzicka-Jozefiak A. Alterations in mtDNA: a qualitative and quantitative study associated with cervical cancer development. Gynecol Oncol 2013; 129:193-8. [PMID: 23319113 DOI: 10.1016/j.ygyno.2013.01.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 01/01/2013] [Accepted: 01/03/2013] [Indexed: 10/27/2022]
Abstract
OBJECTIVE High-risk human papillomaviruses are the causative agent of cervical carcinogenesis. Additionally, a number of other unknown factors are also instrumental in the development of cancer. The aim of this present study was the analysis of the mutations in the D-loop region of mitochondrial DNA, and 4.997 bp deletion during cervical cancer development. Our research also extended to the relationship between mtDNA copy number, ROS (reactive oxygen species) production and the MnSOD (manganese superoxide dismutase) expression level. METHODS The study group consisted of postoperative tissues from patients diagnosed with L-SIL, H-SIL and squamous cell cervical carcinomas. A quantitative real-time polymerase chain reaction was used to determine the copy number of the mitochondrial DNA, and MnSOD mRNA expression levels. A PCR amplification and a sequencing of DNA were used for the identification of HPV DNA and mtDNA mutations. RESULTS A total of 62 point mutations in the D-loop region of mtDNA were found in study patients. The mitochondrial DNA copy number increased during cervical cancer development when compared to the corresponding tissues in the control samples. About 70% of the mtDNA copy number have a 4.997 bp deletion in L-SIL. We also observed an increase in ROS generation during cervical cancer development. CONCLUSION Alterations in mtDNA both qualitatively (by mutations) and quantitatively (by mtDNA copy number) are associated with cervical cancer developments. High levels of mtDNA copy with a 4.997 bp deletion in L-SIL cells can be associated with the susceptibility of cells to HPV persistent infection and cervical cancer development.
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Affiliation(s)
- A Warowicka
- Department of Molecular Virology, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, Umultowska 89, 61-614 Poznan, Poland.
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21
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Burchardt P, Warowicka A, Gozdzicka-Józefiak A, Wysocki H. [Disturbances of mitochondrial energetic processes and mt-DNA and their role in the etiology of coronary artery disease]. Kardiol Pol 2010; 68:947-950. [PMID: 20730733] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Apart from the theory of local inflammation in etiopathogenesis of the arteriosclerosis, hypotheses concerning the role of mitochondria in this process arise growing interest. Some proteins of the respiratory chain (OXPHOS) are coded on mitochondrial DNA. Their damage leads to interruption of oxidative phosphorylation, what in turns raises the free oxygen radicals (ROS) generation. The relationship of insufficient mechanism of mitochondrial ROS elimination with the initiation of the atherosclerosis was confirmed in experimental data. The mutagenesis of mitochondrial DNA is tied with the etiology of coronary artery disease (CAD). Some disturbances of the structure of mt-DNA are primal. The second group is probably determined by the effect of CAD influence on the structure of mt-DNA in cardiomyocytes. The mitochondrial energetic transformations are described in the article, with special regard on their potential influence on the process of mt-DNA mutagenesis and secondarily on the formation of CAD.
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Affiliation(s)
- Paweł Burchardt
- Klinika Intensywnej Terapii Kardiologicznej, Uniwersytet Medyczny im. K. Marcinkowskiego, Poznań.
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