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Soszyńska A, Krawczyk K, Szpila M, Winek E, Szpakowska A, Suwińska A. Exposure of chimaeric embryos to exogenous FGF4 leads to the production of pure ESC-derived mice. Theriogenology 2024; 222:10-21. [PMID: 38603966 DOI: 10.1016/j.theriogenology.2024.03.017] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/28/2024] [Accepted: 03/31/2024] [Indexed: 04/13/2024]
Abstract
Producing chimaeras constitutes the most reliable method of verifying the pluripotency of newly established cells. Moreover, forming chimaeras by injecting genetically modified embryonic stem cells (ESCs) or induced pluripotent stem cells (iPSCs) into the embryo is part of the procedure for generating transgenic mice, which are used for understanding gene function. Conventional methods for generating transgenic mice, including the breeding of chimaeras and tetraploid complementation, are time-consuming and cost-inefficient, with significant limitations that hinder their effectiveness and widespread applications. In the present study, we modified the traditional method of chimaera generation to significantly speed up this process by generating mice exclusively derived from ESCs. This study aimed to assess whether fully ESC-derived mice could be obtained by modulating fibroblast growth factor 4 (FGF4) levels in the culture medium and changing the direction of cell differentiation in the chimaeric embryo. We found that exogenous FGF4 directs all host blastomeres to the primitive endoderm fate, but does not affect the localisation of ESCs in the epiblast of the chimaeric embryos. Consequently, all FGF4-treated chimaeric embryos contained an epiblast composed exclusively of ESCs, and following transfer into recipient mice, these embryos developed into fully ESC-derived newborns. Collectively, this simple approach could accelerate the generation of ESC-derived animals and thus optimise ESC-mediated transgenesis and the verification of cell pluripotency. Compared to traditional methods, it could speed up functional studies by several weeks and significantly reduce costs related to maintaining and breeding chimaeras. Moreover, since the effect of stimulating the FGF signalling pathway is universal across different animal species, our approach can be applied not only to rodents but also to other animals, offering its utility beyond laboratory settings.
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Affiliation(s)
- Anna Soszyńska
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Warsaw, Poland.
| | - Katarzyna Krawczyk
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Warsaw, Poland.
| | - Marcin Szpila
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Warsaw, Poland.
| | - Eliza Winek
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Warsaw, Poland.
| | - Anna Szpakowska
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Warsaw, Poland.
| | - Aneta Suwińska
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Warsaw, Poland.
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Krawczyk K, Paukszto Ł, Maździarz M, Sawicki J. The low level of plastome differentiation observed in some lineages of Poales hinders molecular species identification. Front Plant Sci 2023; 14:1275377. [PMID: 38143577 PMCID: PMC10739336 DOI: 10.3389/fpls.2023.1275377] [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: 08/09/2023] [Accepted: 11/23/2023] [Indexed: 12/26/2023]
Abstract
Chloroplast genomes are a source of information successfully used in various fields of plant genetics, including molecular species identification. However, recent studies indicate an extremely low level of interspecific variability in the plastomes of some taxonomic groups of plants, including the genus Stipa L., which is a representative of the grass family. In this study we aimed to analyze the level of chloroplast genome diversity within particular genera as well as the effectiveness of identifying plant species in the Poaceae family and the other representatives of Poales order. Analysis of complete plastid genome alignments created for 96 genera comprising 793 species and 1707 specimens obtained from the GenBank database allowed defining and categorizing molecular diagnostic characters distinguishing the analyzed species from the other representatives of the genus. The results also demonstrate which species do not have any species-specific mutations, thereby they cannot be identified on the basis of differences between the complete chloroplast genomes. Our research showed a huge diversity of the analyzed species in terms of the number of molecular diagnostic characters and indicated which genera pose a particular challenge in terms of molecular species identification. The results show that a very low level of genetic diversity between plastomes is not uncommon in Poales. This is the first extensive research on super-barcoding that tests this method on a large data set and illustrates its effectiveness against the background of phylogenetic relationships.
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Affiliation(s)
- Katarzyna Krawczyk
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
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Waśniowska J, Leszczyńska T, Kopeć A, Piątkowska E, Smoleń S, Krzemińska J, Kowalska I, Słupski J, Piasna-Słupecka E, Krawczyk K, Koronowicz A. Curly Kale ( Brassica oleracea var. Sabellica L.) Biofortified with 5,7-Diiodo-8-quinolinol: The Influence of Heat Treatment on Iodine Level, Macronutrient Composition and Antioxidant Content. Nutrients 2023; 15:4730. [PMID: 38004124 PMCID: PMC10674582 DOI: 10.3390/nu15224730] [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: 09/11/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Many disorders are a result of an inadequate supply of macronutrients and micronutrients in the diet. One such element is iodine. This study used curly kale (Brassica oleracea var. Sabellica L.) biofortified with the 5,7-diiodo-8-quinolinol iodine compound. The effect of the heat treatment on the chemical composition of the curly kale was studied. In addition, iodine bioavailability was evaluated in in vivo studies. Our investigation showed that iodine loss depends on the type of heat treatment as well as on the variety of kale. Curly kale biofortified with iodoquinoline had significantly higher iodine levels after thermal processing (steaming, blanching, boiling) than the vegetable biofortified with KIO3. Generally, steaming was the best thermal processing method, as it contributed to the lowest iodine loss in curly kale. The red variety of kale, 'Redbor F1', showed a better iodine stability during the heat treatment than the green variety, 'Oldenbor F1'. The thermal treatment also significantly affected the dry matter content and the basic chemical composition of the tested varieties of the 5,7-diI-8-Q biofortified kale. The steaming process caused a significant increase in total carbohydrates, fiber, protein and crude fat content ('Oldenbor F1', 'Redbor F1'), and antioxidant activity ('Oldenbor F1'). On the other hand, boiling caused a significant decrease, while steaming caused a significant increase, in protein and dry matter content ('Oldenbor F1', 'Redbor F1'). The blanching process caused the smallest significant decrease in ash compared to the other thermal processes used ('Oldenbor F1'). A feeding experiment using Wistar rats showed that iodine from the 5,7-diI-8-Q biofortified kale has a higher bioavailability than that from the AIN-93G diet. A number of promising results have been obtained, which could form the basis for further research.
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Affiliation(s)
- Justyna Waśniowska
- Department of Human Nutrition and Dietetics, Faculty of Food Technology, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120 Krakow, Poland; (J.W.); (T.L.); (A.K.); (E.P.); (J.K.); (E.P.-S.); (K.K.)
| | - Teresa Leszczyńska
- Department of Human Nutrition and Dietetics, Faculty of Food Technology, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120 Krakow, Poland; (J.W.); (T.L.); (A.K.); (E.P.); (J.K.); (E.P.-S.); (K.K.)
| | - Aneta Kopeć
- Department of Human Nutrition and Dietetics, Faculty of Food Technology, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120 Krakow, Poland; (J.W.); (T.L.); (A.K.); (E.P.); (J.K.); (E.P.-S.); (K.K.)
| | - Ewa Piątkowska
- Department of Human Nutrition and Dietetics, Faculty of Food Technology, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120 Krakow, Poland; (J.W.); (T.L.); (A.K.); (E.P.); (J.K.); (E.P.-S.); (K.K.)
| | - Sylwester Smoleń
- Department of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120 Krakow, Poland; (S.S.); (I.K.)
| | - Joanna Krzemińska
- Department of Human Nutrition and Dietetics, Faculty of Food Technology, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120 Krakow, Poland; (J.W.); (T.L.); (A.K.); (E.P.); (J.K.); (E.P.-S.); (K.K.)
| | - Iwona Kowalska
- Department of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120 Krakow, Poland; (S.S.); (I.K.)
| | - Jacek Słupski
- Department of Plant Product Technology and Nutrition Hygiene, Faculty of Food Technology, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120 Krakow, Poland;
| | - Ewelina Piasna-Słupecka
- Department of Human Nutrition and Dietetics, Faculty of Food Technology, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120 Krakow, Poland; (J.W.); (T.L.); (A.K.); (E.P.); (J.K.); (E.P.-S.); (K.K.)
| | - Katarzyna Krawczyk
- Department of Human Nutrition and Dietetics, Faculty of Food Technology, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120 Krakow, Poland; (J.W.); (T.L.); (A.K.); (E.P.); (J.K.); (E.P.-S.); (K.K.)
| | - Aneta Koronowicz
- Department of Human Nutrition and Dietetics, Faculty of Food Technology, University of Agriculture in Krakow, al. Mickiewicza 21, 31-120 Krakow, Poland; (J.W.); (T.L.); (A.K.); (E.P.); (J.K.); (E.P.-S.); (K.K.)
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Rolbiecki D, Paukszto Ł, Krawczyk K, Korzeniewska E, Sawicki J, Harnisz M. Chlorine disinfection modifies the microbiome, resistome and mobilome of hospital wastewater - A nanopore long-read metagenomic approach. J Hazard Mater 2023; 459:132298. [PMID: 37595469 DOI: 10.1016/j.jhazmat.2023.132298] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 08/04/2023] [Accepted: 08/12/2023] [Indexed: 08/20/2023]
Abstract
The aim of the present study was to analyze changes in the microbiome, resistome, and mobilome of hospital wastewater (HWW) induced by disinfection with chlorine compounds. Changes in bacterial communities and specific antibiotic resistance genes (ARGs) in HWW were determined with the use of a nanopore long-read metagenomic approach. The main hosts of ARGs in HWW were identified, and the mobility of resistance mechanisms was analyzed. Special attention was paid to the prevalence of critical-priority pathogens in the HWW microbiome, which pose the greatest threat to human health. The results of this study indicate that chlorine disinfection of HWW can induce significant changes in the structure of the total bacterial population and antibiotic resistant bacteria (ARB) communities, and that it can modify the resistome and mobilome of HWW. Disinfection favored the selection of ARGs, decreased their prevalence in HWW, while increasing their diversity. The mobility of the HWW resistome increased after disinfection. Disinfection led to the emergence of new drug resistance mechanisms in previously sensitive bacterial taxa. In conclusion, this study demonstrated that HWW disinfected with low (sublethal) concentrations of free chlorine significantly contributes to the mobility and transfer of drug resistance mechanisms (including critical mechanisms) between bacteria (including pathogens).
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Affiliation(s)
- Damian Rolbiecki
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Poland
| | - Łukasz Paukszto
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Poland
| | - Katarzyna Krawczyk
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Poland
| | - Ewa Korzeniewska
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Poland
| | - Jakub Sawicki
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Poland
| | - Monika Harnisz
- Department of Water Protection Engineering and Environmental Microbiology, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, Poland.
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Paukszto Ł, Górski P, Krawczyk K, Maździarz M, Szczecińska M, Ślipiko M, Sawicki J. The organellar genomes of Pellidae (Marchantiophyta): the evidence of cryptic speciation, conflicting phylogenies and extraordinary reduction of mitogenomes in simple thalloid liverwort lineage. Sci Rep 2023; 13:8303. [PMID: 37221210 DOI: 10.1038/s41598-023-35269-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/15/2023] [Indexed: 05/25/2023] Open
Abstract
Organellar genomes of liverworts are considered as one of the most stable among plants, with rare events of gene loss and structural rearrangements. However, not all lineages of liverworts are equally explored in the field of organellar genomics, and subclass Pellidae is one of the less known. Hybrid assembly, using both short- and long-read technologies enabled the assembly of repeat-rich mitogenomes of Pellia and Apopellia revealing extraordinary reduction of length in the latter which impacts only intergenic spacers. The mitogenomes of Apopellia were revealed to be the smallest among all known liverworts-109 k bp, despite retaining all introns. The study also showed the loss of one tRNA gene in Apopellia mitogenome, although it had no impact on the codon usage pattern of mitochondrial protein coding genes. Moreover, it was revealed that Apopellia and Pellia differ in codon usage by plastome CDSs, despite identical tRNA gene content. Molecular identification of species is especially important where traditional taxonomic methods fail, especially within Pellidae where cryptic speciation is well recognized. The simple morphology of these species and a tendency towards environmental plasticity make them complicated in identification. Application of super-barcodes, based on complete mitochondrial or plastid genomes sequences enable identification of all cryptic lineages within Apopellia and Pellia genera, however in some particular cases, mitogenomes were more efficient in species delimitation than plastomes.
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Affiliation(s)
- Łukasz Paukszto
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727, Olsztyn, Poland.
| | - Piotr Górski
- Department of Botany, Poznań University of Life Sciences, ul. Wojska Polskiego 71C, 60-625, Poznań, Poland
| | - Katarzyna Krawczyk
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727, Olsztyn, Poland
| | - Mateusz Maździarz
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727, Olsztyn, Poland
| | - Monika Szczecińska
- Department of Ecology and Environmental Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 3, 10-727, Olsztyn, Poland
| | - Monika Ślipiko
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727, Olsztyn, Poland
| | - Jakub Sawicki
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727, Olsztyn, Poland
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Szandar K, Jakub S, Paukszto Ł, Krawczyk K, Szczecińska M. Are the Organellar Genomes Useful for Fine Scale Population Structure Analysis of Endangered Plants?-A Case Study of Pulsatilla patens (L.) Mill. Genes (Basel) 2022; 14:genes14010067. [PMID: 36672808 PMCID: PMC9859050 DOI: 10.3390/genes14010067] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
Pulsatilla patens is a rare and endangered species in Europe and its population resources have significantly decreased over the past decades. Previous genetic studies of this species made it possible to estimate the genetic diversity of the European population and to describe the structure of chloroplast and mitochondrial genomes. The main aim of these studies was to characterize the variability of chloroplast and mitochondrial genomes in more detail at the intra-population and inter-population levels. Our study presents new organelle genome reference sequences that allow the design of novel markers that can be the starting point for testing hypotheses, past and modern biogeography of rare and endangered species P. patens, and adaptive responses of this species to changing environments. The study included sixteen individuals from five populations located in Northeastern Poland. Comparative analysis of 16 P. patens plastomes from 5 populations enabled us to identify 160 point mutations, including 64 substitutions and 96 InDels. The most numerous detected SNPs and Indels (75%) were accumulated in three intergenic spacers: ndhD-ccsA, rps4-rps16, and trnL(UAG)-ndhF. The mitogenome dataset, which was more than twice as large as the plastome (331 kbp vs. 151 kbp), revealed eight times fewer SNPs (8 vs. 64) and six times fewer InDels (16 vs. 96). Both chloroplast and mitochondrial genome identified the same number of haplotypes-11 out of 16 individuals, but both organellar genomes slightly differ in haplotype clustering. Despite the much lower variation, mitogenomic data provide additional resolution in the haplotype detection of P. patens, enabling molecular identification of individuals, which were unrecognizable based on the plastome dataset.
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Affiliation(s)
- Kamil Szandar
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727 Olsztyn, Poland
| | - Sawicki Jakub
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727 Olsztyn, Poland
- Correspondence:
| | - Łukasz Paukszto
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727 Olsztyn, Poland
| | - Katarzyna Krawczyk
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727 Olsztyn, Poland
| | - Monika Szczecińska
- Department of Ecology and Environmental Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 3, 10-727 Olsztyn, Poland
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Krawczyk K, Myszczyński K, Nobis M, Sawicki J. Insights into adaptive evolution of plastomes in Stipa L. (Poaceae). BMC Plant Biol 2022; 22:525. [PMID: 36372890 PMCID: PMC9661759 DOI: 10.1186/s12870-022-03923-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 11/01/2022] [Indexed: 06/03/2023]
Abstract
BACKGROUND The study presents results of research on the evolution of plastid genomes in Stipa L. which is a large genus of the Poaceae family, comprising species diverse in terms of geographic distribution, growing under highly variated habitat conditions. Complete plastome sequences of 43 taxa from Stipeae and Ampelodesmae tribes were analyzed for the variability of the coding regions against the background of phylogenetic relationships within the genus Stipa. The research hypothesis put forward in our research was that some of coding regions are affected by a selection pressure differentiated between individual phylogenetic lines of Stipa, potentially reducing the phylogenetic informativeness of these CDS. The study aimed to answer the question, which genes evolve in Stipa most rapidly and what kind of changes in the properties of encoded amino acids this entails. Another goal of this research was to find out whether individual genes are affected by positive selection and finally, whether selective pressure is uniform within the genus or does it vary between particular evolutionary lines within the genus. RESULTS Results of our study proved the presence of selective pressure in 11 genes: ccsA, matK, ndhC, ndhF, ndhK, rbcL, rpoA rpoC1, rpoC2, rps8 and rps11. For the first time the effect of positive selection on the rps8, rps11, and ndhK genes was documented in grasses. The varied pace of evolution, different intensity and effects of selective pressure have been demonstrated between particular phylogenetic lines of the genus tested. CONCLUSIONS Positive selection in plastid genome in Stipa mostly affects photosynthetic genes. The potential strongest adaptive pressure was observed in the rbcL gene, especially in the oldest evolutionary group comprising Central Asian high-mountain species: S. basiplumosa, S. klimesii, S. penicillata and S. purpurea, where adaptive pressure probably affected the amino acids directly related to the efficiency of CO2 assimilation.
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Affiliation(s)
- Katarzyna Krawczyk
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727, Olsztyn, Poland.
| | - Kamil Myszczyński
- Laboratory of Translational Oncology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland
| | - Marcin Nobis
- Institute of Botany, Faculty of Biology, Jagiellonian University, Gronostajowa 3, 30-387, Kraków, Poland
| | - Jakub Sawicki
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727, Olsztyn, Poland
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Krawczyk K, Wilczak K, Szczepańska K, Maleszewski M, Suwińska A. Paracrine interactions through FGFR1 and FGFR2 receptors regulate the development of preimplantation mouse chimaeric embryo. Open Biol 2022; 12:220193. [PMID: 36382369 PMCID: PMC9667143 DOI: 10.1098/rsob.220193] [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] [Indexed: 11/18/2022] Open
Abstract
The preimplantation mammalian embryo has the potential to self-organize, allowing the formation of a correctly patterned embryo despite experimental perturbation. To better understand the mechanisms controlling the developmental plasticity of the early mouse embryo, we used chimaeras composed of an embryonic day (E)3.5 or E4.5 inner cell mass (ICM) and cleaving 8-cell embryo. We revealed that the restricted potential of the ICM can be compensated for by uncommitted 8-cell embryo-derived blastomeres, thus leading to the formation of a normal chimaeric blastocyst that can undergo full development. However, whether such chimaeras maintain developmental competence depends on the presence or specific orientation of the polarized primitive endoderm layer in the ICM component. We also demonstrated that downregulated FGFR1 and FGFR2 expression in 8-cell embryos disturbs intercellular interactions between both components and results in an inverse proportion of primitive endoderm and epiblast within the resulting ICM and abnormal embryo development. This finding suggests that FGF signalling is a key part of the regulatory mechanism that assigns cells to a given lineage and ensures the proper composition of the blastocyst, which is a prerequisite for its successful implantation in the uterus and for further development.
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Affiliation(s)
- Katarzyna Krawczyk
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
| | - Katarzyna Wilczak
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
| | - Katarzyna Szczepańska
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
| | - Marek Maleszewski
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
| | - Aneta Suwińska
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland
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Ciborowski K, Skierkowski B, Żukowska K, Krawczyk K, Sawicki J. Nanopore sequencing of chloroplast genome of Scapania undulata (L.) Dumort., 1835 (Scapaniaceae, Jungermanniales). Mitochondrial DNA B Resour 2022; 7:1424-1426. [PMID: 35937902 PMCID: PMC9347474 DOI: 10.1080/23802359.2022.2107458] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We performed long-read sequencing of the Scapania undulata (L.) Dumort. chloroplast genome with Oxford Nanopore Technology using improved flow cells (10.3). S. undulata is a leafy liverwort living on rocks in or near water in mountains. The size of the complete plastome sequence is 117,651 bp long, the large single copy (LSC) region is 80,606 bp long, the small single copy (SSC) region is 19,401 bp long. The nanopore sequencing allowed for the distinction of inverted repeats A and B (IRA, IRB) which were not identical. Guanine cytosine (GC) ratio is 33.7% for the complete chloroplast genome, for LSC and SSC are 31.7% and 30.6%. The phylogeny reconstruction shows that Scapania undulata is the sister to S. ciliata and S. griffithii.
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Affiliation(s)
- Kamil Ciborowski
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Bartosz Skierkowski
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Karolina Żukowska
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Katarzyna Krawczyk
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Jakub Sawicki
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
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Szandar K, Krawczyk K, Myszczyński K, Ślipiko M, Sawicki J, Szczecińska M. Breaking the limits - multichromosomal structure of an early eudicot Pulsatilla patens mitogenome reveals extensive RNA-editing, longest repeats and chloroplast derived regions among sequenced land plant mitogenomes. BMC Plant Biol 2022; 22:109. [PMID: 35264098 PMCID: PMC8905907 DOI: 10.1186/s12870-022-03492-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND The mitogenomes of vascular plants are one of the most structurally diverse molecules. In the present study we characterize mitogenomes of a rare and endangered species Pulsatilla patens. We investigated the gene content and its RNA editing potential, repeats distribution and plastid derived sequences. RESULTS The mitogenome structure of early divergent eudicot, endangered Pulsatilla patens does not support the master chromosome hypothesis, revealing the presence of three linear chromosomes of total length 986 613 bp. The molecules are shaped by the presence of extremely long, exceeding 87 kbp repeats and multiple chloroplast-derived regions including nearly complete inverted repeat. Since the plastid IR content of Ranunculales is very characteristic, the incorporation into mitogenome could be explained rather by intracellular transfer than mitochondrial HGT. The mitogenome contains almost a complete set of genes known from other vascular plants with exception of rps10 and sdh3, the latter being present but pseudogenized. Analysis of long ORFs enabled the identification of genes which are rarely present in plant mitogenomes, including RNA and DNA polymerases, albeit their presence even at species level is variable. Mitochondrial transcripts of P. patens were edited with a high frequency, which exceeded the level known in other analyzed angiosperms, despite the strict qualification criteria of counting the editing events and taking into analysis generally less frequently edited leaf transcriptome. The total number of edited sites was 902 and nad4 was identified as the most heavily edited gene with 65 C to U changes. Non-canonical, reverse U to C editing was not detected. Comparative analysis of mitochondrial genes of three Pulsatilla species revealed a level of variation comparable to chloroplast CDS dataset and much higher infrageneric differentiation than in other known angiosperm genera. The variation found in CDS of mitochondrial genes is comparable to values found among Pulsatilla plastomes. Despite the complicated mitogenome structure, 14 single copy regions of 329 kbp, not splitted by repeats or plastid-derived sequences (MTPT), revealed the potential for phylogenetic, phylogeographic and population genetics studies by revealing intra- and interspecific collinearity. CONCLUSIONS This study provides valuable new information about mitochondrial genome of early divergent eudicots, Pulsatilla patens, revealed multi-chromosomal structure and shed new light on mitogenomics of early eudicots.
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Affiliation(s)
- Kamil Szandar
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727, Olsztyn, Poland.
| | - Katarzyna Krawczyk
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727, Olsztyn, Poland.
| | - Kamil Myszczyński
- Laboratory of Translational Oncology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland.
| | - Monika Ślipiko
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727, Olsztyn, Poland.
| | - Jakub Sawicki
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-727, Olsztyn, Poland.
| | - Monika Szczecińska
- Department of Ecology and Environmental Protection, University of Warmia and Mazury in Olsztyn, Plac Łódzki 3, 10- 727, Olsztyn, Poland.
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11
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Grabowska A, Sas-Nowosielska H, Wojtas B, Holm-Kaczmarek D, Januszewicz E, Yushkevich Y, Czaban I, Trzaskoma P, Krawczyk K, Gielniewski B, Martin-Gonzalez A, Filipkowski RK, Olszynski KH, Bernas T, Szczepankiewicz AA, Sliwinska MA, Kanhema T, Bramham CR, Bokota G, Plewczynski D, Wilczynski GM, Magalska A. Activation-induced chromatin reorganization in neurons depends on HDAC1 activity. Cell Rep 2022; 38:110352. [PMID: 35172152 DOI: 10.1016/j.celrep.2022.110352] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 11/09/2021] [Accepted: 01/19/2022] [Indexed: 11/23/2022] Open
Abstract
Spatial chromatin organization is crucial for transcriptional regulation and might be particularly important in neurons since they dramatically change their transcriptome in response to external stimuli. We show that stimulation of neurons causes condensation of large chromatin domains. This phenomenon can be observed in vitro in cultured rat hippocampal neurons as well as in vivo in the amygdala and hippocampal neurons. Activity-induced chromatin condensation is an active, rapid, energy-dependent, and reversible process. It involves calcium-dependent pathways but is independent of active transcription. It is accompanied by the redistribution of posttranslational histone modifications and rearrangements in the spatial organization of chromosome territories. Moreover, it leads to the reorganization of nuclear speckles and active domains located in their proximity. Finally, we find that the histone deacetylase HDAC1 is the key regulator of this process. Our results suggest that HDAC1-dependent chromatin reorganization constitutes an important level of transcriptional regulation in neurons.
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Affiliation(s)
- Agnieszka Grabowska
- Laboratory of Molecular Basis of Cell Motility, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Hanna Sas-Nowosielska
- Laboratory of Molecular Basis of Cell Motility, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Bartosz Wojtas
- Laboratory of Sequencing, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Dagmara Holm-Kaczmarek
- Laboratory of Molecular Basis of Cell Motility, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Elzbieta Januszewicz
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Yana Yushkevich
- Laboratory of Molecular Basis of Cell Motility, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Iwona Czaban
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Pawel Trzaskoma
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Katarzyna Krawczyk
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Bartlomiej Gielniewski
- Laboratory of Sequencing, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Ana Martin-Gonzalez
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; Instituto de Neurociencias, Universidad Miguel Hernández-Consejo Superior de Investigaciones Científicas, San Juan de Alicante, 03550 Alicante, Spain
| | - Robert Kuba Filipkowski
- Behavior and Metabolism Research Laboratory, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106 Warsaw, Poland
| | - Krzysztof Hubert Olszynski
- Behavior and Metabolism Research Laboratory, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106 Warsaw, Poland
| | - Tytus Bernas
- Laboratory of Imaging Tissue Structure and Function, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; Department of Anatomy and Neurology, VCU School of Medicine, Richmond, VA 23284, USA
| | - Andrzej Antoni Szczepankiewicz
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Malgorzata Alicja Sliwinska
- Laboratory of Imaging Tissue Structure and Function, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Tambudzai Kanhema
- Department of Biomedicine, University of Bergen, 5020 Bergen, Norway; KG Jebsen Centre for Neuropsychiatric Disorders, University of Bergen, 5020 Bergen, Norway
| | - Clive R Bramham
- Department of Biomedicine, University of Bergen, 5020 Bergen, Norway; KG Jebsen Centre for Neuropsychiatric Disorders, University of Bergen, 5020 Bergen, Norway
| | - Grzegorz Bokota
- Centre of New Technologies, University of Warsaw, 02-097 Warsaw, Poland; Institute of Informatics, University of Warsaw, 02-097 Warsaw, Poland
| | - Dariusz Plewczynski
- Centre of New Technologies, University of Warsaw, 02-097 Warsaw, Poland; Faculty of Mathematics and Information Science, Warsaw University of Technology, 00-662 Warsaw, Poland
| | - Grzegorz Marek Wilczynski
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Adriana Magalska
- Laboratory of Molecular Basis of Cell Motility, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland.
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12
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Krawczyk K, Kosyl E, Częścik-Łysyszyn K, Wyszomirski T, Maleszewski M. Developmental capacity is unevenly distributed among single blastomeres of 2-cell and 4-cell stage mouse embryos. Sci Rep 2021; 11:21422. [PMID: 34728646 PMCID: PMC8563712 DOI: 10.1038/s41598-021-00834-1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 10/14/2021] [Indexed: 11/25/2022] Open
Abstract
During preimplantation development, mammalian embryo cells (blastomeres) cleave, gradually losing their potencies and differentiating into three primary cell lineages: epiblast (EPI), trophectoderm (TE), and primitive endoderm (PE). The exact moment at which cells begin to vary in their potency for multilineage differentiation still remains unknown. We sought to answer the question of whether single cells isolated from 2- and 4-cell embryos differ in their ability to generate the progenitors and cells of blastocyst lineages. We revealed that twins were often able to develop into blastocysts containing inner cell masses (ICMs) with PE and EPI cells. Despite their capacity to create a blastocyst, the twins differed in their ability to produce EPI, PE, and TE cell lineages. In contrast, quadruplets rarely formed normal blastocysts, but instead developed into blastocysts with ICMs composed of only one cell lineage or completely devoid of an ICM altogether. We also showed that quadruplets have unequal capacities to differentiate into TE, PE, and EPI lineages. These findings could explain the difficulty of creating monozygotic twins and quadruplets from 2- and 4-cell stage mouse embryos.
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Affiliation(s)
- Katarzyna Krawczyk
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland.
| | - Ewa Kosyl
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland
| | - Karolina Częścik-Łysyszyn
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland
| | - Tomasz Wyszomirski
- Department of Ecology and Environmental Protection, Institute of Environmental Biology, Faculty of Biology, University of Warsaw, Żwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Marek Maleszewski
- Department of Embryology, Institute of Developmental Biology and Biomedical Sciences, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland.
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13
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Skupien-Jaroszek A, Walczak A, Czaban I, Pels KK, Szczepankiewicz AA, Krawczyk K, Ruszczycki B, Wilczynski GM, Dzwonek J, Magalska A. The interplay of seizures-induced axonal sprouting and transcription-dependent Bdnf repositioning in the model of temporal lobe epilepsy. PLoS One 2021; 16:e0239111. [PMID: 34086671 PMCID: PMC8177504 DOI: 10.1371/journal.pone.0239111] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 05/17/2021] [Indexed: 01/19/2023] Open
Abstract
The Brain-Derived Neurotrophic Factor is one of the most important trophic proteins in the brain. The role of this growth factor in neuronal plasticity, in health and disease, has been extensively studied. However, mechanisms of epigenetic regulation of Bdnf gene expression in epilepsy are still elusive. In our previous work, using a rat model of neuronal activation upon kainate-induced seizures, we observed a repositioning of Bdnf alleles from the nuclear periphery towards the nuclear center. This change of Bdnf intranuclear position was associated with transcriptional gene activity. In the present study, using the same neuronal activation model, we analyzed the relation between the percentage of the Bdnf allele at the nuclear periphery and clinical and morphological traits of epilepsy. We observed that the decrease of the percentage of the Bdnf allele at the nuclear periphery correlates with stronger mossy fiber sprouting-an aberrant form of excitatory circuits formation. Moreover, using in vitro hippocampal cultures we showed that Bdnf repositioning is a consequence of transcriptional activity. Inhibition of RNA polymerase II activity in primary cultured neurons with Actinomycin D completely blocked Bdnf gene transcription and repositioning occurring after neuronal excitation. Interestingly, we observed that histone deacetylases inhibition with Trichostatin A induced a slight increase of Bdnf gene transcription and its repositioning even in the absence of neuronal excitation. Presented results provide novel insight into the role of BDNF in epileptogenesis. Moreover, they strengthen the statement that this particular gene is a good candidate to search for a new generation of antiepileptic therapies.
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Affiliation(s)
- Anna Skupien-Jaroszek
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Agnieszka Walczak
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Iwona Czaban
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Katarzyna Karolina Pels
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Andrzej Antoni Szczepankiewicz
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Katarzyna Krawczyk
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Błażej Ruszczycki
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Grzegorz Marek Wilczynski
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Joanna Dzwonek
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
- * E-mail: (AM); (JD)
| | - Adriana Magalska
- Laboratory of Molecular and Systemic Neuromorphology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
- Laboratory of Molecular Basis of Cell Motility, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
- * E-mail: (AM); (JD)
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14
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Jurczyszyn A, Waszczuk-Gajda A, Castillo JJ, Krawczyk K, Stork M, Pour L, Usnarska-Zubkiewicz L, Potoczek S, Hus I, Davila Valls J, Hari P, Chhabra S, Gentile M, Mikala G, Varga G, Chim CS, Fiala M, Vij R, Schutz N, Rodzaj M, Porowska A, Vesole DH, Druzd-Sitek A, Walewski J, Nooka AK. Primary refractory multiple myeloma: a real-world experience with 85 cases. Leuk Lymphoma 2020; 61:2868-2875. [DOI: 10.1080/10428194.2020.1788014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Artur Jurczyszyn
- Department of Hematology, Jagiellonian University Medical College, Cracow, Poland
| | - Anna Waszczuk-Gajda
- Department of Hematology, Oncology and Internal Medicine, Warsaw Medical University, Warsaw, Poland
| | - Jorge J. Castillo
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Katarzyna Krawczyk
- Department of Hematology, Jagiellonian University Medical College, Cracow, Poland
| | - Martin Stork
- Department of Internal Medicine, Hematology and Oncology, University Hospital, Brno, Czech Republic
| | - Ludek Pour
- Department of Internal Medicine, Hematology and Oncology, University Hospital, Brno, Czech Republic
| | - Lidia Usnarska-Zubkiewicz
- Department of Hematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, Wroclaw, Poland
| | - Stanisław Potoczek
- Department of Hematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, Wroclaw, Poland
| | - Iwona Hus
- Medical University of Lublin, Lublin Poland
| | | | - Parameswaran Hari
- Division of Hematology/Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Saurabh Chhabra
- Division of Hematology/Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | | | - Gabor Mikala
- Department of Hematology and Stem Cell Transplantation, South-Pest Central Hospital, National Institute of Hematology and Infectology, Budapest, Hungary
| | - Gergely Varga
- 3rd Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - Chor Sang Chim
- Division of Hematology and Medical Oncology, Queen Mary Hospital, Hong Kong, China
| | - Mark Fiala
- Washington University School of Medicine, St. Louis, MS, USA
| | - Ravi Vij
- Washington University School of Medicine, St. Louis, MS, USA
| | - Natalia Schutz
- Department of Internal Medicine, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - Marek Rodzaj
- Department of Hematology, Regional Specialistic Hospital, Cracow, Poland
| | - Agnieszka Porowska
- Department of Oncology and Haematology, Central Clinical Hospital of the Ministry of the Interior, Warsaw, Poland
| | - David H. Vesole
- John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | | | - Jan Walewski
- Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Ajay K. Nooka
- School of Medicine, Emory University, Atlanta, GA, USA
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15
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Trzaskoma P, Ruszczycki B, Lee B, Pels KK, Krawczyk K, Bokota G, Szczepankiewicz AA, Aaron J, Walczak A, Śliwińska MA, Magalska A, Kadlof M, Wolny A, Parteka Z, Arabasz S, Kiss-Arabasz M, Plewczyński D, Ruan Y, Wilczyński GM. Ultrastructural visualization of 3D chromatin folding using volume electron microscopy and DNA in situ hybridization. Nat Commun 2020; 11:2120. [PMID: 32358536 PMCID: PMC7195386 DOI: 10.1038/s41467-020-15987-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 04/03/2020] [Indexed: 12/17/2022] Open
Abstract
The human genome is extensively folded into 3-dimensional organization. However, the detailed 3D chromatin folding structures have not been fully visualized due to the lack of robust and ultra-resolution imaging capability. Here, we report the development of an electron microscopy method that combines serial block-face scanning electron microscopy with in situ hybridization (3D-EMISH) to visualize 3D chromatin folding at targeted genomic regions with ultra-resolution (5 × 5 × 30 nm in xyz dimensions) that is superior to the current super-resolution by fluorescence light microscopy. We apply 3D-EMISH to human lymphoblastoid cells at a 1.7 Mb segment of the genome and visualize a large number of distinctive 3D chromatin folding structures in ultra-resolution. We further quantitatively characterize the reconstituted chromatin folding structures by identifying sub-domains, and uncover a high level heterogeneity of chromatin folding ultrastructures in individual nuclei, suggestive of extensive dynamic fluidity in 3D chromatin states.
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Affiliation(s)
- Paweł Trzaskoma
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteura St, 02-093, Warsaw, Poland
| | - Błażej Ruszczycki
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteura St, 02-093, Warsaw, Poland
| | - Byoungkoo Lee
- The Jackson Laboratory for Genomic Medicine, 10 Discovery Dr, Farmington, CT, 06032, USA
| | - Katarzyna K Pels
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteura St, 02-093, Warsaw, Poland
| | - Katarzyna Krawczyk
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteura St, 02-093, Warsaw, Poland
| | - Grzegorz Bokota
- Center of New Technologies, University of Warsaw, 2c Banacha St, 02-097, Warsaw, Poland
| | - Andrzej A Szczepankiewicz
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteura St, 02-093, Warsaw, Poland
| | - Jesse Aaron
- Janelia Research Campus, Howard Hughes Medical Institute, 19700 Helix Dr, Ashburn, VA, 20147, USA
| | - Agnieszka Walczak
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteura St, 02-093, Warsaw, Poland
- Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, 6 Uniwersytetu Poznanskiego St, 61-614, Poznan, Poland
| | - Małgorzata A Śliwińska
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteura St, 02-093, Warsaw, Poland
| | - Adriana Magalska
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteura St, 02-093, Warsaw, Poland
| | - Michal Kadlof
- Center of New Technologies, University of Warsaw, 2c Banacha St, 02-097, Warsaw, Poland
| | - Artur Wolny
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteura St, 02-093, Warsaw, Poland
| | - Zofia Parteka
- Center of New Technologies, University of Warsaw, 2c Banacha St, 02-097, Warsaw, Poland
| | - Sebastian Arabasz
- Łukasiewicz Research NETWORK - PORT Polish Center for Technology Development, 147 Stablowicka St, 54-066, Wroclaw, Poland
| | - Magdalena Kiss-Arabasz
- Łukasiewicz Research NETWORK - PORT Polish Center for Technology Development, 147 Stablowicka St, 54-066, Wroclaw, Poland
| | - Dariusz Plewczyński
- Center of New Technologies, University of Warsaw, 2c Banacha St, 02-097, Warsaw, Poland
- Mathematics and Information Science, Warsaw Technical University, 75 Koszykowa St, 00-662, Warsaw, Poland
| | - Yijun Ruan
- The Jackson Laboratory for Genomic Medicine, 10 Discovery Dr, Farmington, CT, 06032, USA.
| | - Grzegorz M Wilczyński
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteura St, 02-093, Warsaw, Poland.
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16
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Sawicki J, Bączkiewicz A, Buczkowska K, Górski P, Krawczyk K, Mizia P, Myszczyński K, Ślipiko M, Szczecińska M. The Increase of Simple Sequence Repeats during Diversification of Marchantiidae, An Early Land Plant Lineage, Leads to the First Known Expansion of Inverted Repeats in the Evolutionarily-Stable Structure of Liverwort Plastomes. Genes (Basel) 2020; 11:E299. [PMID: 32178248 PMCID: PMC7140840 DOI: 10.3390/genes11030299] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 02/13/2020] [Revised: 03/03/2020] [Accepted: 03/10/2020] [Indexed: 01/16/2023] Open
Abstract
The chloroplast genomes of liverworts, an early land plant lineage, exhibit stable structure and gene content, however the known resources are very limited. The newly sequenced plastomes of Conocephalum, Riccia and Sphaerocarpos species revealed an increase of simple sequence repeats during the diversification of complex thalloid liverwort lineage. The presence of long TA motifs forced applying the long-read nanopore sequencing method for proper and dependable plastome assembly, since the length of dinucleotide repeats overcome the length of Illumina short reads. The accumulation of SSRs (simple sequence repeats) enabled the expansion of inverted repeats by the incorporation of rps12 and rps7 genes, which were part of large single copy (LSC) regions in the previously sequenced plastomes. The expansion of inverted repeat (IR) at the genus level is reported for the first time for non-flowering plants. Moreover, comparative analyses with remaining liverwort lineages revealed that the presence of SSR in plastomes is specific for simple thalloid species. Phylogenomic analysis resulted in trees confirming monophyly of Marchantiidae and partially congruent with previous studies, due to dataset-dependent results of Dumortiera-Reboulia relationships. Despite the lower evolutionary rate of Marchantiales plastomes, significant barcoding gap was detected, even for recently divergent holarctic Conocephalum species. The sliding window analyses revealed the presence of 18 optimal (500 bp long) barcodes that enable the molecular identification of all studied species.
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Affiliation(s)
- Jakub Sawicki
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn; 10-719 Olsztyn, Poland; (K.K.); (P.M.); (K.M.); (M.Ś.); (M.S.)
| | - Alina Bączkiewicz
- Department of Genetics, Faculty of Biology, Adam Mickiewicz University in Poznań, 61-614 Poznań, Poland; (A.B.); (K.B.)
| | - Katarzyna Buczkowska
- Department of Genetics, Faculty of Biology, Adam Mickiewicz University in Poznań, 61-614 Poznań, Poland; (A.B.); (K.B.)
| | - Piotr Górski
- Department of Botany, Poznań University of Life Sciences, 60-625 Poznań, Poland;
| | - Katarzyna Krawczyk
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn; 10-719 Olsztyn, Poland; (K.K.); (P.M.); (K.M.); (M.Ś.); (M.S.)
| | - Patryk Mizia
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn; 10-719 Olsztyn, Poland; (K.K.); (P.M.); (K.M.); (M.Ś.); (M.S.)
| | - Kamil Myszczyński
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn; 10-719 Olsztyn, Poland; (K.K.); (P.M.); (K.M.); (M.Ś.); (M.S.)
| | - Monika Ślipiko
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn; 10-719 Olsztyn, Poland; (K.K.); (P.M.); (K.M.); (M.Ś.); (M.S.)
| | - Monika Szczecińska
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn; 10-719 Olsztyn, Poland; (K.K.); (P.M.); (K.M.); (M.Ś.); (M.S.)
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Gomolińska AM, Szczecińska M, Sawicki J, Krawczyk K, Szkudlarz P. Phylogenetic analysis of selected representatives of the genus Erica based on the genes encoding the DNA-dependent RNA polymerase I. Biodiversity Research and Conservation 2019. [DOI: 10.1515/biorc-2017-0007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
The rpo genes are characterized by rapidly-evolving sequences. They encode subunits of plastid-encoded (PEP) polymerase (rpoA, rpoB, rpoC1 and rpoC2). This polymerase is one of the most important enzymes in the chloroplasts. The primary aim of the research was to study the rate of molecular evolution in the rpo genes and to estimate these genes as phylogenetic markers based on the example of the genus Erica (Ericaceae). The tested rpo genes demonstrated similarities on multiple levels, for example: phylogenetic informativeness, variation level, intragenic mutation rates and the effect of intragenic mutations on the properties of encoded peptides. This study did not confirm that the analyzed rpo genes are reliable markers and may be helpful in understanding phylogenetic relationships between species that belong to the same genus. The rpoC2 gene was found to be a most useful phylogenetic marker in the Erica genus, while rpoC1 was found to be the least promising gene.
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Affiliation(s)
- Angelika Maria Gomolińska
- Department of Botany and Nature Protection , University of Warmia and Mazury in Olsztyn , Plac Łódzki 1, 10-727 Olsztyn , Poland
| | - Monika Szczecińska
- Department of Botany and Nature Protection , University of Warmia and Mazury in Olsztyn , Plac Łódzki 1, 10-727 Olsztyn , Poland
| | - Jakub Sawicki
- Department of Botany and Nature Protection , University of Warmia and Mazury in Olsztyn , Plac Łódzki 1, 10-727 Olsztyn , Poland
- Department of Biology and Ecology , University of Ostrava , Chittusiho 10, Ostrava , Czech Republic
| | - Katarzyna Krawczyk
- Department of Botany and Nature Protection , University of Warmia and Mazury in Olsztyn , Plac Łódzki 1, 10-727 Olsztyn , Poland
| | - Piotr Szkudlarz
- Department of Plant Taxonomy , Adam Mickiewicz University , Umultowska 89, 61-614 Poznań , Poland
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Agier J, Krawczyk K, Żelechowska P, Kozłowska E, Brzezińska-Błaszczyk E, Wiktorska M. Expression of Toll-like receptors 2 and 4 on peripheral mononuclear cells (PBMCs) after laparoscopic cholecystectomy. Scand J Clin Lab Invest 2019; 79:449-454. [PMID: 31453712 DOI: 10.1080/00365513.2019.1658895] [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] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Increasing evidence suggests that the course and intensity of inflammation, as well as repair processes, developed in response to stress, injury, and trauma, depend on the interaction between immediately released endogenous molecules, called alarmins or danger/damage-associated molecular patterns (DAMPs) and cellular pattern recognition receptors (PRR) including Toll-like receptors (TLRs) and activation of inflammatory/immune cells. Therefore, the aim of this study was to examine the expression of TLRs in peripheral blood mononuclear cells (PBMCs), CD3+, and CD14+ cells in control group and in patients before the laparoscopic cholecystectomy, and three and seven days after surgery. Flow cytometry was used to evaluate expression of TLR2 and TLR4. TLR2 and especially TLR4 expression levels on PBMCs were significantly lower in patients with asymptomatic cholelithiasis than in the control group. Laparoscopic surgery did not induce the significant changes in the expression of TLR2, both on PBMCs and CD3+ and CD14+ cell subpopulations. On the contrary, TLR4 expression level on PBMCs was significantly lower on the third and seventh postoperative day than before surgery. Collectively, the expression levels of cellular TLRs, and especially TLR2 and TLR4, might strongly influence the responsiveness of cells to DAMP activation, and in this way can regulate the intensity of inflammatory response to surgical injury.
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Affiliation(s)
- Justyna Agier
- Department of Experimental Immunology, Medical University of Lodz , Lodz , Poland
| | - Katarzyna Krawczyk
- Department of Experimental Immunology, Medical University of Lodz , Lodz , Poland.,Specialist Hospital , Lodz , Poland
| | - Paulina Żelechowska
- Department of Experimental Immunology, Medical University of Lodz , Lodz , Poland
| | - Elżbieta Kozłowska
- Department of Experimental Immunology, Medical University of Lodz , Lodz , Poland
| | | | - Magdalena Wiktorska
- Department of Molecular Cell Mechanisms, Medical University of Lodz , Lodz , Poland
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Jurczak W, Gruszka AM, Sowa Staszczak A, Dlugosz-Danecka M, Szostek M, Zimowska-Curylo D, Giza A, Krawczyk K, Jakobczyk M, Hubalewska-Dydejczyk A, Szymczyk M, Wróbel T, Knopińska-Posłuszny W, Kisiel E, Skotnicki A, Zinzani PL. Consolidation with 90Y ibritumomab tiuxetan radioimmunotherapy in mantle cell lymphoma patients ineligible for high dose therapy: results of the phase II multicentre Polish Lymphoma Research Group trial, after 8-year long follow-up. Leuk Lymphoma 2019; 60:2689-2696. [PMID: 30961415 DOI: 10.1080/10428194.2019.1602261] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polish Lymphoma Research Group performed a phase-II trial to test whether 90Y ibritumomab tiuxetan radioimmunotherapy (Y90) may constitute an alternative consolidation for mantle cell lymphoma patients unfit for high-dose therapy. Forty-six patients were consolidated with Y90 following response to the 1st (n = 34) or 2nd line (n = 12) (immuno)chemotherapy. Majority of the patients had advanced disease (stage IV and presence of B-symptoms in 85% and 70%, respectively) and high MIPI (5.8, range 4-7). Consolidation with Y90 increased the complete remission (CR) rate obtained by the 1st line therapy from 41% to 91% and allowed for median PFS of 3.3 and OS of 6.5 years. In the first relapse, CR rate increased from 16% to 75%, while median PFS and OS totaled 2.2 and 6.5 years, respectively. At 8 years, 30% of patients, consolidated in the 1st line CR were alive, without relapse. Toxicity associated with Y90 is manageable, more severe after fludarabine-based regimens.
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Affiliation(s)
- Wojciech Jurczak
- Department of Haematology, Uniwersytet Jagiellonski w Krakowie Collegium Medicum, Krakow, Poland
| | - Alicja M Gruszka
- Department of Experimental Oncology, Istituto Europeo di Oncologia IRCCS, Milano, Italy
| | - Anna Sowa Staszczak
- Department of Endocrinology, Nuclear Medicine Unit, Uniwersytet Jagiellonski w Krakowie Collegium Medicum, Krakow, Poland
| | - Monika Dlugosz-Danecka
- Department of Haematology, Uniwersytet Jagiellonski w Krakowie Collegium Medicum, Krakow, Poland
| | - Marta Szostek
- Department of Haematology, Uniwersytet Jagiellonski w Krakowie Collegium Medicum, Krakow, Poland
| | - Dagmara Zimowska-Curylo
- Department of Haematology, Uniwersytet Jagiellonski w Krakowie Collegium Medicum, Krakow, Poland
| | - Agnieszka Giza
- Department of Haematology, Uniwersytet Jagiellonski w Krakowie Collegium Medicum, Krakow, Poland
| | - Katarzyna Krawczyk
- Department of Haematology, Uniwersytet Jagiellonski w Krakowie Collegium Medicum, Krakow, Poland
| | - Malgorzata Jakobczyk
- Department of Haematology, Uniwersytet Jagiellonski w Krakowie Collegium Medicum, Krakow, Poland
| | - Alicja Hubalewska-Dydejczyk
- Department of Endocrinology, Nuclear Medicine Unit, Uniwersytet Jagiellonski w Krakowie Collegium Medicum, Krakow, Poland
| | - Michal Szymczyk
- Department of Lymphoid Malignancies, Centrum Onkologii-Instytut im Marii Sklodowskiej-Curie w Warszawie, Warszawa, Poland
| | - Tomasz Wróbel
- Department of Haematology, Uniwersytet Medyczny im Piastow Slaskich we Wroclawiu, Wroclaw, Poland
| | - Wanda Knopińska-Posłuszny
- Department of Hematology, Independent Public Health Care of the Ministry of the Internal Affairs with the Oncology Centre, Olsztyn, Poland
| | | | - Aleksander Skotnicki
- Department of Haematology, Uniwersytet Jagiellonski w Krakowie Collegium Medicum, Krakow, Poland
| | - Pier Luigi Zinzani
- Policlinico "Sant'Orsola-Malpighi" - University of Bologna Institute of Hematology "Seràgnoli", Bologna, Italy
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Długosz-Danecka M, Krawczyk K, Ochrem B, Szymczyk M, Joks M, Boguradzki P, Giza A, Zimowska-Curyło D, Mazur G, Jurczak W. The necessity of post-induction therapy in mantle cell lymphoma patients: A multicenter retrospective real-world analysis by Polish Lymphoma Research Group (PLRG). POSTEP HIG MED DOSW 2019. [DOI: 10.5604/01.3001.0013.2520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Aim: Mantle cell lymphoma (MCL) patients have poor prognosis, due to development of chemoresistance in relapsing patients. Therefore, despite the features of indolent lymphoma at presentation, consolidation and/or maintenance strategies to achieve minimal tumor burden and postpone subsequent relapses remain the standard of care.
Material/Methods: In the retrospective analysis of Polish Lymphoma Research Group (PLRG), post-induction strategies were assessed in 355 MCL patients. Those in complete or partial remission (CR or PR) after induction regimen (n = 263, 74.08%) were consolidated with autologous stem cell transplantation (ASCT) (n = 71, 20%) or radioimmunotherapy (RIT, n = 37, 10.42%), subjected to rituximab maintenance (MR, n = 17, 4.79%) or had none post-induction treatment (NPI, n = 138, 38.87%). Responses to therapy, progression and overall survival (PFS and OS) were compared.
Results: CR after induction was significantly increased by consolidation strategies, from 68% to 95% in ASCT and from 43% to 90% in RIT cohort. Median PFS in patients subjected to ASCT and RIT was significantly higher compared to NPI group (2.3, 3.8 and 1.8 years respectively, p <0.05). Consolidation strategies also prolonged median OS (not reached in ASCT, 7.3 in RIT and 4 years in NPI cohort, p <0.005 ).
Conclusions: Our data confirms the efficacy of ASCT consolidation in selected patients and demonstrates that RIT may be regarded as an alternative consolidation strategy for patients not eligible for ASCT. At the time the study was performed, there were few possibilities to retreat elderly and comorbid patients; therefore, despite PFS benefit of RIT, younger, transplanted patients experienced a longer median OS.
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Affiliation(s)
| | | | - Bogdan Ochrem
- Department of Hematology, Jagiellonian University, Krakow, Poland
| | - Michał Szymczyk
- Maria Sklodowska-Curie Institute and Oncology Centre, Warsaw, Poland
| | - Monika Joks
- Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical Sciences, Poznan, Poland
| | - Piotr Boguradzki
- Department of Hematology, Oncology and Internal Medicine, Central Clinical Hospital of the Ministry of the Interior in Warsaw, Warsaw, Poland
| | - Agnieszka Giza
- Department of Hematology, Jagiellonian University, Krakow, Poland
| | | | - Grzegorz Mazur
- Department of Hematology, Oncology and Internal Medicine, Central Clinical Hospital of the Ministry of the Interior in Warsaw, Warsaw, Poland
| | - Wojciech Jurczak
- Department of Hematology, Jagiellonian University, Krakow, Poland
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21
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Długosz-Danecka M, Gruszka AM, Szmit S, Olszanecka A, Ogórka T, Sobociński M, Jaroszyński A, Krawczyk K, Skotnicki AB, Jurczak W. Primary Cardioprotection Reduces Mortality in Lymphoma Patients with Increased Risk of Anthracycline Cardiotoxicity, Treated by R-CHOP Regimen. Chemotherapy 2018; 63:238-245. [PMID: 30372698 DOI: 10.1159/000492942] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 07/15/2018] [Accepted: 08/15/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND Advances in anti-lymphoma therapy prolong overall survival, making late adverse effects, like doxorubicin-related cardiotoxicity, an even more important clinical issue. The effectiveness of cardioprotective strategies with close monitoring, angiotensin-converting enzyme inhibitors and/or β-blockers as well as liposomal doxorubicin are still unconfirmed in clinical practice. METHODS This study evaluated the role of a primary cardioprotection strategy in preventing cardiovascular mortality and heart failure occurrence in non-Hodgkin lymphoma (NHL) patients with a high risk of anthracycline cardiotoxicity. Thirty-five NHL patients were subjected prospectively to ramipril and/or bisoprolol at NHL diagnosis, before implementing doxorubicin-containing regimens. Additionally, patients with a diagnosis of asymptomatic/mild heart failure received the liposomal form of doxorubicin. The clinical outcome and frequency of all serious cardiac events were compared with the results in a historical cohort of 62 high-risk cases treated without primary cardioprotection. RESULTS NHL patients with a primary cardioprotection strategy did not experience cardiovascular deaths in contrast to the retrospective control group where cardiovascular mortality was 14.5% at 3 years (p < 0.05). Primary cardioprotection also decreased the frequency of new cardiotoxicity-related clinical symptoms (2.8 vs. 24.1%; p < 0.05) and prevented the occurrence of cardiac systolic dysfunction (0 vs. 8.5%, respectively; p < 0.05). Although the study was not planned to detect any survival benefit, it demonstrated a trend towards increased response rates (complete response 82 vs. 67%; p not significant) and prolonged survival (projected 5-year overall survival 74 vs. 60%; p < 0.05) for patients treated with primary cardioprotection. CONCLUSIONS A primary personalized cardioprotection strategy decreases the number of cardiac deaths and may potentially prolong overall survival in NHL patients with increased risk of anthracycline cardiotoxicity.
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Affiliation(s)
| | - Alicja M Gruszka
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy
| | - Sebastian Szmit
- Department of Pulmonary Circulation, Thromboembolic Diseases and Cardiology, Centre of Postgraduate Medical Education, European Health Centre, Otwock, Poland
| | | | - Tomasz Ogórka
- Department of Haematology, Jagiellonian University, Krakow, Poland
| | | | - Andrzej Jaroszyński
- Department of Nephrology, Family Medicine and Geriatrics, Institute of Medical Sciences, Jan Kochanowski University, Kielce, Poland
| | | | | | - Wojciech Jurczak
- Department of Haematology, Jagiellonian University, Krakow, Poland
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Jurczak W, Chojnowski K, Mayer J, Krawczyk K, Jamieson BD, Tian W, Allen LF. Phase 3 randomised study of avatrombopag, a novel thrombopoietin receptor agonist for the treatment of chronic immune thrombocytopenia. Br J Haematol 2018; 183:479-490. [PMID: 30191972 PMCID: PMC6282556 DOI: 10.1111/bjh.15573] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [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: 05/14/2018] [Accepted: 07/05/2018] [Indexed: 01/28/2023]
Abstract
Avatrombopag, an oral thrombopoietin receptor agonist, was compared with placebo in a 6-month, multicentre, randomised, double-blind, parallel-group Phase 3 study, with an open-label extension phase, to assess the efficacy and safety of avatrombopag (20 mg/day) in adults with chronic immune thrombocytopenia (ITP) and a platelet count <30 × 109 /l (ClinicalTrials.gov identifier NCT01438840). The primary endpoint was the cumulative number of weeks of platelet response (platelet count ≥50 × 109 /l) without rescue therapy for bleeding; secondary endpoints included platelet response rate at day 8 and reductions in the use of concomitant medications. Amongst the 49 patients randomised, avatrombopag (N = 32) was superior to placebo (N = 17) in the median cumulative number of weeks of platelet response (12·4 vs. 0·0 weeks, respectively; P < 0·0001). At day 8, a greater platelet response rate was also observed for patients treated with avatrombopag compared with placebo (65·63% vs. 0·0%; P < 0·0001), and use of concomitant ITP medications was also reduced amongst patients receiving avatrombopag. The safety profile of avatrombopag was consistent with Phase 2 studies; the most common adverse events were headache and contusion. Overall, avatrombopag was well tolerated and efficacious for the treatment of chronic ITP.
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Affiliation(s)
- Wojciech Jurczak
- Department of Haematology, Jagiellonian University, Kraków, Poland
| | | | - Jiří Mayer
- Department of Internal Medicine, Haematology and Oncology, University Hospital Brno, Jihlavská, Czech Republic
| | | | | | - Wei Tian
- Dova Pharmaceuticals, Durham, NC, USA
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Długosz-Danecka M, Szmit S, Ogórka T, Krawczyk K, Łątka E, Skotnicki AB, Jurczak W. The average relative dose intensity of R-CHOP as an independent prognostic factor determining overall survival in diffuse large B cell lymphoma patients. J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.e19542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Sebastian Szmit
- Department of Pulmonary Circulation and Thromboembolic Diseases, The Medical Centre of Postgraduate Education, European Health Centre Otwock,, Otwock, Poland
| | - Tomasz Ogórka
- Department of Hematology, Jagiellonian University, Krakow, Poland
| | | | - Ewa Łątka
- Department of Hematology, Jagiellonian University, Krakow, Poland
| | | | - Wojciech Jurczak
- Department of Hematology, Jagiellonian University, Krakow, Poland
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Krawczyk K, Nobis M, Myszczyński K, Klichowska E, Sawicki J. Plastid super-barcodes as a tool for species discrimination in feather grasses (Poaceae: Stipa). Sci Rep 2018; 8:1924. [PMID: 29386579 PMCID: PMC5792575 DOI: 10.1038/s41598-018-20399-w] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [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: 10/19/2017] [Accepted: 01/17/2018] [Indexed: 02/03/2023] Open
Abstract
Present study was designed to verify which or if any of plastome loci is a hotspot region for mutations and hence might be useful for molecular species identification in feather grasses. 21 newly sequenced complete plastid genomes representing 19 taxa from the genus of Stipa were analyzed in search of the most variable and the most discriminative loci within Stipa. The results showed that the problem with selecting a good barcode locus for feather grasses lies in the very low level of genetic diversity within its plastome. None of the single chloroplast loci is polymorphic enough to play a role of a barcode or a phylogenetic marker for Stipa. The biggest number of taxa was successfully identified by the analysis of 600 bp long DNA fragment comprising a part of rbcL gene, the complete rbcL-rpl23 spacer and a part of rpl23 gene. The effectiveness of multi-locus barcode composed of six best-performing loci for Stipa (ndhH, rpl23, ndhF-rpl32, rpl32-ccsA, psbK-psbI and petA-psbJ) didn't reach 70% of analyzed taxa. The analysis of complete plastome sequences as a super-barcode for Stipa although much more effective, still didn't allow for discrimination of all the analyzed taxa of feather grasses.
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Affiliation(s)
- Katarzyna Krawczyk
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland.
| | - Marcin Nobis
- Institute of Botany, Faculty of Biology, Jagiellonian University, Kraków, Poland
| | - Kamil Myszczyński
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Ewelina Klichowska
- Institute of Botany, Faculty of Biology, Jagiellonian University, Kraków, Poland
| | - Jakub Sawicki
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
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Krawczyk K, Nobis M, Nowak A, Szczecińska M, Sawicki J. Phylogenetic implications of nuclear rRNA IGS variation in Stipa L. (Poaceae). Sci Rep 2017; 7:11506. [PMID: 28912548 PMCID: PMC5599551 DOI: 10.1038/s41598-017-11804-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 04/10/2017] [Accepted: 08/25/2017] [Indexed: 01/03/2023] Open
Abstract
The article takes up the problem of deficiency of molecular marker, which could illustrate molecular variability as well as phylogenetic relation within the genus of Stipa L. (Poaceae). Researches made so far hadn’t delivered sufficient information about relationships between particular taxa from the genus of Stipa. In the present study, we analyzed variability and phylogenetic informativeness of nuclear ribosomal DNA in six species from the genus against five other species from Poaceae including a division of this region into functional elements and domains. Our results showed that the intergenic spacer region, and especially its part adjacent to 26 S nrDNA, is a molecular marker giving a real chance for a phylogeny reconstruction of Stipa. The region seems to be the most phylogenetically informative for Stipa from all the chloroplast and nuclear markers tested so far. Comparative analysis of nrDNA repeat units from Stipa to other representatives of Poaceae showed that their structure does not deviate from the general scheme. However, the rate of evolution within the inter-repeats in the IGS region is extremely high and therefore it predestines the region for phylogenetic analyses of Stipa at genus level or in shallower taxonomic scale.
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Affiliation(s)
- Katarzyna Krawczyk
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland.
| | - Marcin Nobis
- Institute of Botany, Faculty of Biology and Earth Sciences, Jagiellonian University, Kraków, Poland
| | - Arkadiusz Nowak
- Polish Academy of Sciences Botanical Garden - Center for Biological Diversity Conservation in Powsin, Warsaw, Poland
| | - Monika Szczecińska
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Jakub Sawicki
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
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Krawczyk K, Wiland-Szymańska J, Buczkowska-Chmielewska K, Drapikowska M, Maślak M, Myszczyński K, Szczecińska M, Ślipiko M, Sawicki J. The complete chloroplast genome of a rare orchid species Liparis loeselii (L.). CONSERV GENET RESOUR 2017. [DOI: 10.1007/s12686-017-0809-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Morello L, Rattotti S, Jerkeman M, van Meerten T, Krawczyk K, Moita F, Marino D, Ferrero S, Szymczyk M, Aurer I, El-Galaly T, Di Rocco A, Carli G, Defrancesco I, Giordano L, Carlo-Stella C, Dreyling M, Santoro A, Arcaini L. MANTLE CELL LYMPHOMA OF MUCOSA-ASSOCIATED LYMPHOID TISSUE: A RETROSPECTIVE MULTICENTER OBSERVATIONAL STUDY OF THE EUROPEAN MANTLE CELL LYMPHOMA NETWORK. Hematol Oncol 2017. [DOI: 10.1002/hon.2438_66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- L. Morello
- Department of Oncology and Hematology; Humanitas Clinical and Research Center, Rozzano, Italy; Rozzano (MI) Italy
| | - S. Rattotti
- Department of Hematology and Oncology, Fondazione IRCCS Policlinico S. Matteo; University of Pavia, Italy; Pavia Italy
| | - M. Jerkeman
- Department of Oncology; Skane University Hospital; Lund Sweden
| | - T. van Meerten
- Department of Hematology; University Medical Center Groningen; Groningen The Netherlands
| | - K. Krawczyk
- Department of Hematology; Jagiellonian University; Krakow Poland
| | - F. Moita
- Instituto Português de Oncologia de Lisboa, Francisco Gentil; Lisbon Portugal
| | - D. Marino
- Oncology Unit 1; Veneto Institute of Oncology IOV-IRCCS; Padova Italy
| | - S. Ferrero
- Division of Hematology, Department of Molecular Biotechnologies and Health Sciences; University of Torino; Torino Italy
| | - M. Szymczyk
- Department of Lymphoid Malignancies, The Maria Sklodowska-Curie Memorial Cancer Centre and Institute of Oncology; Warsaw Poland
| | - I. Aurer
- Division of Hematology, Department of Internal Medicine; University Hospital Centre Zagreb; Zagreb Croatia
| | - T.C. El-Galaly
- Department of Hematology; Aalborg University Hospital; Aalborg Denmark
| | - A. Di Rocco
- Department of Cellular Biotechnologies and Hematology; Sapienza University; Rome Italy
| | - G. Carli
- Department of Cell Therapy and Haematology; San Bortolo Hospital; Vicenza Italy
| | - I. Defrancesco
- Department of Hematology and Oncology, Fondazione IRCCS Policlinico S. Matteo; University of Pavia, Italy; Pavia Italy
| | - L. Giordano
- Department of Oncology and Hematology; Humanitas Clinical and Research Center, Rozzano, Italy; Rozzano (MI) Italy
| | - C. Carlo-Stella
- Department of Oncology and Hematology; Humanitas Clinical and Research Center, Rozzano, Italy; Rozzano (MI) Italy
| | - M. Dreyling
- Department of Internal Medicine III; Ludwig-Maximilians University Hospital Munich; Munchen Germany
| | - A. Santoro
- Department of Oncology and Hematology; Humanitas Clinical and Research Center, Rozzano, Italy; Rozzano (MI) Italy
| | - L. Arcaini
- Department of Hematology and Oncology, Fondazione IRCCS Policlinico S. Matteo; University of Pavia, Italy; Pavia Italy
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Kulik T, Abarenkov K, Buśko M, Bilska K, van Diepeningen AD, Ostrowska-Kołodziejczak A, Krawczyk K, Brankovics B, Stenglein S, Sawicki J, Perkowski J. ToxGen: an improved reference database for the identification of type B-trichothecene genotypes in Fusarium. PeerJ 2017; 5:e2992. [PMID: 28229023 PMCID: PMC5314956 DOI: 10.7717/peerj.2992] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 09/12/2016] [Accepted: 01/15/2017] [Indexed: 01/17/2023] Open
Abstract
Type B trichothecenes, which pose a serious hazard to consumer health, occur worldwide in grains. These mycotoxins are produced mainly by three different trichothecene genotypes/chemotypes: 3ADON (3-acetyldeoxynivalenol), 15ADON (15-acetyldeoxynivalenol) and NIV (nivalenol), named after these three major mycotoxin compounds. Correct identification of these genotypes is elementary for all studies relating to population surveys, fungal ecology and mycotoxicology. Trichothecene producers exhibit enormous strain-dependent chemical diversity, which may result in variation in levels of the genotype's determining toxin and in the production of low to high amounts of atypical compounds. New high-throughput DNA-sequencing technologies promise to boost the diagnostics of mycotoxin genotypes. However, this requires a reference database containing a satisfactory taxonomic sampling of sequences showing high correlation to actually produced chemotypes. We believe that one of the most pressing current challenges of such a database is the linking of molecular identification with chemical diversity of the strains, as well as other metadata. In this study, we use the Tri12 gene involved in mycotoxin biosynthesis for identification of Tri genotypes through sequence comparison. Tri12 sequences from a range of geographically diverse fungal strains comprising 22 Fusarium species were stored in the ToxGen database, which covers descriptive and up-to-date annotations such as indication on Tri genotype and chemotype of the strains, chemical diversity, information on trichothecene-inducing host, substrate or media, geographical locality, and most recent taxonomic affiliations. The present initiative bridges the gap between the demands of comprehensive studies on trichothecene producers and the existing nucleotide sequence databases, which lack toxicological and other auxiliary data. We invite researchers working in the fields of fungal taxonomy, epidemiology and mycotoxicology to join the freely available annotation effort.
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Affiliation(s)
- Tomasz Kulik
- Department of Botany and Nature Protection, University of Warmia and Mazury, Olsztyn, Poland
| | | | - Maciej Buśko
- Department of Chemistry, Poznań University of Life Sciences, Poznań, Poland
| | - Katarzyna Bilska
- Department of Botany and Nature Protection, University of Warmia and Mazury, Olsztyn, Poland
| | - Anne D. van Diepeningen
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, Netherlands
- Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | | | - Katarzyna Krawczyk
- Department of Botany and Nature Protection, University of Warmia and Mazury, Olsztyn, Poland
| | - Balázs Brankovics
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, Netherlands
- Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, Netherlands
| | - Sebastian Stenglein
- Laboratorio de Biología Funcional y Biotecnología (BIOLAB)-CICBA-INBIOTEC, CONICET, Azul, Buenos Aires, Argentina
- Cátedra de Microbiología-Facultad de Agronomía de Azul-UNCPBA, Azul, Buenos Aires, Argentina
| | - Jakub Sawicki
- Department of Botany and Nature Protection, University of Warmia and Mazury, Olsztyn, Poland
- Department of Biology and Ecology, University of Ostrava, Ostrava, Czech Republic
| | - Juliusz Perkowski
- Department of Chemistry, Poznań University of Life Sciences, Poznań, Poland
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Kowalewicz-Kulbat M, Ograczyk E, Krawczyk K, Rudnicka W, Fol M. Type of monocyte immunomagnetic separation affects the morphology of monocyte-derived dendritic cells, as investigated by scanning electron microscopy. J Immunol Methods 2016; 439:79-82. [DOI: 10.1016/j.jim.2016.10.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 09/27/2016] [Accepted: 10/11/2016] [Indexed: 01/08/2023]
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Mazurek K, Zmijewski P, Krawczyk K, Czajkowska A, Kęska A, Kapuściński P, Mazurek T. High intensity interval and moderate continuous cycle training in a physical education programme improves health-related fitness in young females. Biol Sport 2016; 33:139-44. [PMID: 27274106 PMCID: PMC4885624 DOI: 10.5604/20831862.1198626] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 01/10/2016] [Accepted: 03/16/2016] [Indexed: 01/28/2023] Open
Abstract
The aim of the study was to investigate the effects of eight weeks of regular physical education classes supplemented with high intensity interval cycle exercise (HIIE) or continuous cycle exercises of moderate intensity (CME). Forty-eight collegiate females exercising in two regular physical education classes per week were randomly assigned to two programmes (HIIE; n = 24 or CME; n = 24) of additional (one session of 63 minutes per week) physical activity for 8 weeks. Participants performed HIIE comprising 2 series of 6x10 s sprinting with maximal pedalling cadence and active recovery pedalling with intensity 65%–75% HRmax or performed CME corresponding to 65%-75% HRmax. Before and after the 8-week programmes, anthropometric data and aero- and anaerobic capacity were measured. Two-way ANOVA revealed a significant time main effect for VO2max (p < 0.001), similar improvements being found in both groups (+12% in HIIE and +11% in CME), despite body mass not changing significantly (p = 0.59; +0.4% in HIIE and -0.1% in CME). A significant main time effect was found for relative fat mass (FM) and fat-free mass (FFM) (p < 0.001 and p < 0.001, respectively). A group x time interaction effect was found for relative FM and FFM (p = 0.018 and p = 0.018); a greater reduction in FM and greater increase in FFM were noted in the CME than the HIIE group. Improvements in anaerobic power were observed in both groups (p < 0.001), but it was greater in the HIIE group (interaction effect, p = 0.022). Weight loss is not mandatory for exercise-induced effects on improving aerobic and anaerobic capacity in collegiate females. Eight weeks of regular physical education classes supplemented with CME sessions are more effective in improving body composition than physical education classes supplemented with HIIE sessions. In contrast to earlier, smaller trials, similar improvements in aerobic capacity were observed following physical activity with additional HIIE or CME sessions.
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Affiliation(s)
- K Mazurek
- Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland
| | - P Zmijewski
- Institute of Sport - National Research Institute, Warsaw, Poland
| | - K Krawczyk
- Maria Curie Skłodowska University in Lublin, Poland
| | - A Czajkowska
- Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland
| | - A Kęska
- Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland
| | - P Kapuściński
- Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland
| | - T Mazurek
- Medical University of Warsaw, First Chair and Department of Cardiology, Warsaw, Poland
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Demkowicz S, Daśko M, Kozak W, Krawczyk K, Witt D, Masłyk M, Kubiński K, Rachon J. Synthesis and Biological Evaluation of Fluorinated 3-Phenylcoumarin-7-O-Sulfamate Derivatives as Steroid Sulfatase Inhibitors. Chem Biol Drug Des 2015; 87:233-8. [DOI: 10.1111/cbdd.12652] [Citation(s) in RCA: 16] [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: 05/12/2015] [Revised: 07/20/2015] [Accepted: 08/11/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Sebastian Demkowicz
- Department of Organic Chemistry; Chemical Faculty; Gdansk University of Technology; Narutowicza 11/12 80-233 Gdansk Poland
| | - Mateusz Daśko
- Department of Organic Chemistry; Chemical Faculty; Gdansk University of Technology; Narutowicza 11/12 80-233 Gdansk Poland
| | - Witold Kozak
- Department of Organic Chemistry; Chemical Faculty; Gdansk University of Technology; Narutowicza 11/12 80-233 Gdansk Poland
| | - Katarzyna Krawczyk
- Department of Organic Chemistry; Chemical Faculty; Gdansk University of Technology; Narutowicza 11/12 80-233 Gdansk Poland
| | - Dariusz Witt
- Department of Organic Chemistry; Chemical Faculty; Gdansk University of Technology; Narutowicza 11/12 80-233 Gdansk Poland
| | - Maciej Masłyk
- Department of Molecular Biology; Faculty of Biotechnology and Environment Sciences; The John Paul II Catholic University of Lublin; Konstantynów 1i 20-708 Lublin Poland
| | - Konrad Kubiński
- Department of Molecular Biology; Faculty of Biotechnology and Environment Sciences; The John Paul II Catholic University of Lublin; Konstantynów 1i 20-708 Lublin Poland
| | - Janusz Rachon
- Department of Organic Chemistry; Chemical Faculty; Gdansk University of Technology; Narutowicza 11/12 80-233 Gdansk Poland
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Dlugosz Danecka M, Jurczak W, Olszanecka A, Krawczyk K, Skotnicki AB. Primary cardioprotection in lymphoma patients with high risk of cardiovascular disease, treated with (R) CHOP regimen: A single center retrospective analysis. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.e19515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Swat K, Adrich P, Baczewski A, Baran M, Jankowski E, Kopec J, Kosinski K, Krawczyk K, Kulczycka E, Masternak A, Meglicki B, Misiarz A, Plawski E, Staszczak M, Syntfeld-Kazuch A, Wasilewski A, Wojciechowski M, Wójtowicz M, Wronka S, Wysocka-Rabin A, Wysokinski J, Adamczyk S, Murawa D, Kruszyna M. EP-1574: New IOERT machine: the IntraLine accelerator research and development project. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41566-x] [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]
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Krawczyk K, Jurczak W, Gałązka K, Gruchała A, Skotnicki AB. Lenalidomide in heavily pretreated refractory diffuse large B-cell lymphoma: a case report. J Med Case Rep 2014; 8:325. [PMID: 25277681 PMCID: PMC4191682 DOI: 10.1186/1752-1947-8-325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 05/15/2014] [Accepted: 07/21/2014] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION In diffuse large B-cell lymphoma, first-line treatment with rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone; salvage with cisplatin-based regimens for relapsing patients; and autologous stem cell therapy are standards of care. Treatment approaches are less clear for patients who are refractory or who are not candidates for autologous stem cell therapy. Options may include palliative regimens or clinical trial enrollment. One therapy under investigation in diffuse large B-cell lymphoma is lenalidomide, an immunomodulatory agent with antiangiogenic activity. CASE PRESENTATION We present the case of a 55-year-old Caucasian male patient diagnosed with diffuse large B-cell lymphoma who had an early relapse after treatment with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone. He then had a subsequent early relapse after cisplatin-based salvage consolidated with autologous stem cell therapy. The efficacy of gemcitabine-cisplatin-rituximab was limited to five months, followed by systemic and central nervous system progression. Fourth-line treatment with lenalidomide plus rituximab and involved-field radiotherapy followed by lenalidomide monotherapy greatly improved this patient's quality of life and performance status, allowing over two years of progression-free survival to date (excluding a brief relapse due to treatment interruption). CONCLUSION A lenalidomide-based regimen was highly effective in this patient with diffuse large B-cell lymphoma.
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Affiliation(s)
| | - Wojciech Jurczak
- Department of Hematology, Jagiellonian University, Kopernika 17, Kraków 30-501, Poland.
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Krawczyk K, Szczecińska M, Sawicki J. Evaluation of 11 single-locus and seven multilocus DNA barcodes inLamiumL. (Lamiaceae). Mol Ecol Resour 2013; 14:272-85. [DOI: 10.1111/1755-0998.12175] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 09/06/2013] [Accepted: 09/13/2013] [Indexed: 11/28/2022]
Affiliation(s)
- K. Krawczyk
- Department of Botany and Nature Protection; University of Warmia and Mazury in Olsztyn; Plac Lodzki 1 10-727 Olsztyn Poland
| | - M. Szczecińska
- Department of Botany and Nature Protection; University of Warmia and Mazury in Olsztyn; Plac Lodzki 1 10-727 Olsztyn Poland
| | - J. Sawicki
- Department of Botany and Nature Protection; University of Warmia and Mazury in Olsztyn; Plac Lodzki 1 10-727 Olsztyn Poland
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Krawczyk K, Jurczak W, Długosz-Danecka M, Zauska-Giza A, Dzietczenia J, Wróbel T, Skotnicki AB. Central nervous system prophylaxis with intrathecal liposomal cytarabine in diffuse large B-cell lymphomas. ACTA ACUST UNITED AC 2013; 123:589-95. [PMID: 23928849 DOI: 10.20452/pamw.1968] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Central nervous system (CNS) involvement is a serious and potentially fatal complication in patients with lymphoma because it is associated with a particularly poor prognosis (median progression‑free survival [PFS] of 4-6 months). Although CNS prophylaxis is considered necessary, there are no clear guidelines on identifying high‑risk patients or selecting treatment regimen. OBJECTIVES The aim of the study was to assess the safety and efficacy of CNS prophylaxis with intrathecal liposomal cytarabine. PATIENTS AND METHODS We analyzed the data of 79 patients (46 men and 33 women; median age, 48.5 years [20-79]) with diffuse large B‑cell lymphoma (83.5% of the patients) and primary mediastinal large B‑cell lymphoma (16.5%). Patients were treated in the departments of hematology in Kraków and Wrocław, Poland, between the years 2009-2012. They were considered to be at a high risk of developing CNS involvement associated with a lymphoma. RESULTS Adverse reactions after intrathecal liposomal cytarabine were reported in 59 patients (74.7%); in 7 cases, the reactions were severe. The most common side effect was headache (67.1%). During antilymphoma therapy and prophylaxis, the functional status assessed by the Karnofsky score improved in 56 patients (70.9%) and remained unchanged in the remaining cases. A median follow‑up time did not exceed 28 months (range, 1.4-52.1); during follow‑up, neither median overall survival (OS) nor PFS were reached (projected OS and PFS at 48 months are 86.1% and 90.1%, respectively). CONCLUSIONS Our results encourage the use of intrathecal liposomal cytarabine in CNS prophylaxis in patients with lymphoma.
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Cheah C, George A, Giné E, Chiappella A, Kluin-Nelemans H, Jurczak W, Krawczyk K, Mocikova H, Klener P, Salek D, Walewski J, Szymczyk M, Smolej L, Auer R, Ritchie D, Arcaini L, Williams M, Dreyling M, Seymour J. Central nervous system involvement in mantle cell lymphoma: clinical features, prognostic factors and outcomes from the European Mantle Cell Lymphoma Network. Ann Oncol 2013; 24:2119-23. [DOI: 10.1093/annonc/mdt139] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [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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Krawczyk K, Sawicki J. The uneven rate of the molecular evolution of gene sequences of DNA-Dependent RNA polymerase I of the Genus Lamium L. Int J Mol Sci 2013; 14:11376-91. [PMID: 23759988 PMCID: PMC3709737 DOI: 10.3390/ijms140611376] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [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: 04/22/2013] [Revised: 05/10/2013] [Accepted: 05/21/2013] [Indexed: 11/27/2022] Open
Abstract
RNA polymerase type I (plastid-encoded polymerase, PEP) is one of the key chloroplast enzymes. However, the rpo genes that encode its subunits (rpoA, rpoB, rpoC1 and rpoC2) are relatively rapidly evolving sequences. The aim of this study was to investigate the rate of the molecular evolution of rpo genes and to evaluate them as phylogenetic markers on the example of the genus Lamium L. (Lamiaceae). The analyzed genes were shown to differ in the level of variation, rate of intragenic mutations, phylogenetic informativeness, and in the impact of these mutations on the properties of encoded peptides. Destabilizing effects of the positive pressure were observed in all genes examined coding for PEP enzyme. We have demonstrated the relationship between mutations fixed by positive selection and the separation of phylogenetic lines within the genus Lamium. The study showed also that the rpo genes were reliable phylogenetic markers, useful in the reconstruction of interconnections of species belonging to the same genus. Of the four tested genes, the most promising phylogenetic marker was rpoA gene, while the least useful gene appeared to be rpoC1.
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Affiliation(s)
- Katarzyna Krawczyk
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Lodzki 1, 10-727 Olsztyn, Poland; E-Mail:
| | - Jakub Sawicki
- Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Plac Lodzki 1, 10-727 Olsztyn, Poland; E-Mail:
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Krawczyk K, Bak M, Kuropatwa J, Winnicka R, Kołacinski Z, Krakowiak A. [Metformin poisoning--clinical features, diagnostics and treatment--case presentations]. Przegl Lek 2013; 70:661-665. [PMID: 24466714] [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: 06/03/2023]
Abstract
Metformin has been used for many years as oral anti-hyperglycaemic agent in the treatment of type 2 diabetes mellitus either in Poland or in the world. Metformin is the most commonly prescribed agent, but acute poisonings of this agent are rare. A review of our experience indicates, that poisoning with this agent may lead to life-threatening or fatal metformin toxicity. The authors of this publication postulate, that each patient with metformin exposure should be hospitalized. Physician must be vigilant to recognize anti-hyperglycaemic agent poisonings like biguanides when hypoglycaemia and acidosis are present in laboratory results. We present patients with metformin toxicity, some of them with fatal course.
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Affiliation(s)
- Katarzyna Krawczyk
- Oddział Anestezjologii i Intensywnej Terapii, W.S.S. im. M. Pirogowa w Łodzi
| | - Marek Bak
- Oddział Toksykologii, Klinika Chorób Zawodowych i Toksykologii, Instytutu Medycyny Pracy w Łodzi
| | - Julia Kuropatwa
- Oddział Toksykologii, Klinika Chorób Zawodowych i Toksykologii, Instytutu Medycyny Pracy w Łodzi
| | - Renata Winnicka
- Pracownia Diagnostyki Toksykologicznej, Instytutu Medycyny Pracy w Łodzi
| | - Zbigniew Kołacinski
- Oddział Toksykologii, Klinika Chorób Zawodowych i Toksykologii, Instytutu Medycyny Pracy w Łodzi
| | - Anna Krakowiak
- Oddział Toksykologii, Klinika Chorób Zawodowych i Toksykologii, Instytutu Medycyny Pracy w Łodzi
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Zwolińska A, Krawczyk K, Klejdysz T, Pospieszny H. First Report of 'Candidatus Phytoplasma asteris' Associated with Oilseed Rape Phyllody in Poland. Plant Dis 2011; 95:1475. [PMID: 30731761 DOI: 10.1094/pdis-03-11-0177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Winter oilseed rape (Brassica napus L.) is widely grown in Poland to produce vegetable oil for industrial processing of human and animal feed. In recent years, according to European Union directives on the use of biofuels (Directive 2003/30/EC), the area under oilseed rape cultivation in Poland has dramatically increased to 810,000 ha in 2009 and is still increasing. Morphological deformations of winter oilseed rape indicative of phytoplasma infection have been observed sporadically in Poland since 2000 (3). Plants exhibiting floral virescence, phyllody, as well as auxiliary bud proliferation, reduced leaves, and malformation of siliques were identified during surveys of research fields in Wielkopolska during May and June of 2009 and 2010. To confirm phytoplasma infection of these plants, inflorescence and leaf tissues were collected from nine diseased and three symptomless plants from three different field locations with 1 to 16% disease incidence. Total DNA was extracted from each plant tissue sample with a modified cetyltrimethylammoniumbromide method (2). Samples were analyzed for phytoplasma DNA with a nested PCR assay employing phytoplasma universal rRNA operon primer pair P1/P7 followed by R16F2n/R16R2, using previously described conditions (1). PCR products of 1.8 and 1.2 kb were obtained from all diseased plants only following PCRs with P1/P7 and nested primer pair R16F2n/R16R2, respectively. PCR products were not obtained from symptomless plants. Eight 1.2-kb amplicons were sequenced (GenBank Accession Nos. JN193475 to JN193482). Comparative analysis of the R16F2n/R16R2 rDNA sequences confirmed the phytoplasma origin of the rDNA sequences that shared 100 to 99% identity with Maize bushy stunt phytoplasma (GenBank Accession No. HQ530152), Alfalfa stunt phytoplasma (GenBank Accession No. GU289675), Primula green yellows phytoplasma (GenBank Accession No. HM590623), and other aster yellows group phytoplasmas. A 1.8-kb amplicon of isolate designated RzW14 was sequenced (GenBank Accession No. HM561990) and had 99% identity with Aster yellow group phytoplasmas from Lithuania (GenBank Accession Nos.GU223208 and AY744071). A virtual restriction fragment length polymorphism analysis of the 16S rDNA sequences from the R16F2n/R16R2 amplicons was performed with iPhyClassifier (4). Restriction profile comparisons identified all aster yellows group phytoplasmas as subgroup 16SrI-B strains. To our knowledge, this is the first report of a 'Candidatus Phytoplasma asteris'-related strain infecting oilseed rape in Poland. References: (1) I. M. Lee et al. Int. J. Syst. Bacteriol. 48:1153, 1998. (2) A. C. Padovan et al. Aust. J. Grape Wine Res. 1:25, 1995. (3) M. Starzycki and E. Starzycka. Oilseed Crops 21:399, 2000. (4) Y. Zhao et al. Int. J. Syst. Evol. Microbiol. 59:2582, 2009.
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Affiliation(s)
- A Zwolińska
- Virology and Bacteriology Department, Institute of Plant Protection - National Research Institute
| | - K Krawczyk
- Virology and Bacteriology Department, Institute of Plant Protection - National Research Institute
| | - T Klejdysz
- Entomology Department, Institute of Plant Protection - National Research Institute
| | - H Pospieszny
- Virology and Bacteriology Department, Institute of Plant Protection - National Research Institute, Węgorka 20, 60-318 Poznań, Poland
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Krawczyk K, Szczesniak P, Kumor A, Jasinska A, Omulecka A, Pietruczuk M, Orszulak-Michalak D, Sporny S, Malecka-Panas E. Adipohormones as prognostric markers in patients with nonalcoholic steatohepatitis (NASH). J Physiol Pharmacol 2009; 60 Suppl 3:71-75. [PMID: 19996485] [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: 12/12/2008] [Accepted: 04/30/2009] [Indexed: 05/28/2023]
Abstract
Nonalcoholic steatohepatitis (NASH) represents one of the most common liver diseases. It is strongly associated with obesity and insulin resistance and is thought to be part of the metabolic syndrome. NASH can progress to cirrhosis and liver failure. Adipohormones, synthesized in adipose tissue, are involved in the pathophysiology of many acute and chronic liver diseases. The aim of this study was to evaluate the plasma concentrations of adiponectin, resistin, leptin, TNF-alpha and Il-6 in patients with NASH, as well as their correlation with the pathologic parameters. Serum concentration of leptin, adiponectin, resistin, insulin, TNF-alpha, IL-6 were measured with ELISA method. Liver biopsies were obtained from 18 (age 42.55+/-21 years) patients. NASH has been classified according to Dixon score. The control group was represented by 16 non-obese subjects. Mean serum concentration of adiponectin in patients with NASH was significantly lower than in healthy subjects (4.87+/-1.96 vs. 8.33+/-4.56 ng/ml; p<0.05). Mean serum levels of TNF-alpha in patients with NASH were significantly higher than in controls (34.2+/-19.7 vs. 20.7+/-15.5 ng/ml; p<0.05). In patients with more advanced inflammation (grade 2-3) and fibrosis (stage 2) in pathology, serum concentration of leptin was significantly higher than in patients with steatosis and less advanced inflammation (grade 1) and fibrosis (stage 1) (median 8.94 vs. 16.2 ng/ml; p<0.05). No significant differences of serum concentration of others adipohormones between these two groups of patients were stated. Moreover, we observed the correlation in serum levels (examined group vs controls) between: resistin and TNF-alpha (r = 0.62; p<0.05), adiponectin and IL-6 (r = -0.60; p<0.05) and leptin and insulin (r = -0.51; p<0.05). In conclusion, based on our study we speculate that changes of adipohormones levels may be markers of NASH and the serum level of leptin can be associated with more advanced form of NASH.
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Affiliation(s)
- K Krawczyk
- Department of Digestive Tract Diseases, Medical University of Lodz, Poland.
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Pospieszny H, Krawczyk K, Kamasa J, Petrzik K. First Report of a Phytoplasma Affecting Tomato in Poland. Plant Dis 2007; 91:1054. [PMID: 30780451 DOI: 10.1094/pdis-91-8-1054b] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
During 2006, two tomato plants exhibiting dwarfing, twisting of shoots and leaves, and virescence and phyllody of flowers were observed in a greenhouse in western Poland. Total genomic DNA was extracted from approximately 3.5 g of leaf midribs and petioles using the modified cetyltrimethylammoniumbromide (CTAB) buffer method (3). Direct PCR was done with universal phytoplasma primers P1/P7 for amplification of ribosomal 16S rDNA. The PCR product (1.8 kb) was diluted 1:30 with sterile distilled water and used as DNA template for nested PCR with primers R16F2n/R16R2 (1). The final product was an expected 1.2-kb rDNA fragment amplified from infected tomato tissues. The DNA extracted from a Vinca sp. infected with phytoplasma of 16SrI-B subgroup and from a healthy tomato plant were used as positive and negative assay controls, respectively. Restriction fragment length polymorphism analysis of the final PCR product (1.2 kb) using enzymes MseI, KpnI, AluI, HhaI, HpaII, RsaI, TaqI, and TruI (1) indicated that phytoplasma from the tomato belonged to the subgroup 16SrI-C (1,2). The sequence obtained from the final PCR product (746 bp) was deposited in the GenBank database under accession number EF164961. Multiple sequence alignments with sequences of phytoplasma available from GenBank were performed using ClustalW software. The analysis revealed that the Polish isolate was co-identical (100%) to two phytoplasma sequences (GenBank Accession Nos. AY839617 and DQ078304) that belong to 16SrI-C subgroup. To our knowledge, this is the first report of a phytoplasma affecting tomato plant in Poland. References: (1) I.-M. Lee et al. Inst. J. Syst. Bacteriol. 48:1153, 1998. (2) I.-M. Lee et al. Cell-wall free bacteria. Page 283 in: Laboratory Guide for Identification of Plant Pathogenic Bacteria. 3rd ed. N. W. Schaad et a.l, eds. The American Phytopathology Society, 2001. (3) A. C. Padovan et al. Austral. J. Grape Wine Res. 1:25, 1995.
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Affiliation(s)
- H Pospieszny
- Virology and Bacteriology Department, Institute of Plant Protection, Miczurina 20, 60-318 Poznań, Poland
| | - K Krawczyk
- Virology and Bacteriology Department, Institute of Plant Protection, Miczurina 20, 60-318 Poznań, Poland
| | - J Kamasa
- Virology and Bacteriology Department, Institute of Plant Protection, Miczurina 20, 60-318 Poznań, Poland
| | - K Petrzik
- Department of Plant Virology, Institute of Plant Molecular Biology, Biological Center of Academy Science of the Czech Republic, Branisovska 31, 37005 Ceske Budejovice, Czech Republic
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Sieprawska-Lupa M, Mydel P, Krawczyk K, Wójcik K, Puklo M, Lupa B, Suder P, Silberring J, Reed M, Pohl J, Shafer W, McAleese F, Foster T, Travis J, Potempa J. Degradation of human antimicrobial peptide LL-37 by Staphylococcus aureus-derived proteinases. Antimicrob Agents Chemother 2005; 48:4673-9. [PMID: 15561843 PMCID: PMC529204 DOI: 10.1128/aac.48.12.4673-4679.2004] [Citation(s) in RCA: 372] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Cathelicidin LL-37 is one of the few human bactericidal peptides with potent antistaphylococcal activity. In this study we examined the susceptibility of LL-37 to proteolytic degradation by two major proteinases produced by Staphylococcus aureus, a metalloproteinase (aureolysin) and a glutamylendopeptidase (V8 protease). We found that aureolysin cleaved and inactivated LL-37 in a time- and concentration-dependent manner. Analysis of the generated fragments by mass spectroscopy revealed that the initial cleavage of LL-37 by aureolysin occurred between the Arg19-Ile20, Arg23-Ile24, and Leu31-Val32 peptide bonds, instantly annihilating the antibacterial activity of LL-37. In contrast, the V8 proteinase hydrolyzed efficiently only the Glu16-Phe17 peptide bond, rendering the C-terminal fragment refractory to further degradation. This fragment (termed LL-17-37) displayed antibacterial activity against S. aureus at a molar level similar to that of the full-length LL-37 peptide, indicating that the antibacterial activity of LL-37 resides in the C-terminal region. In keeping with LL-37 degradation by aureolysin, S. aureus strains that produce significant amounts of this metalloprotease were found to be less susceptible to LL-17-37 than strains expressing no aureolysin activity. Taken together, these data suggest that aureolysin production by S. aureus contributes to the resistance of this pathogen to the innate immune system of humans mediated by LL-37.
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Abstract
BACKGROUND It has been shown that cells of the immune system release opioid peptides and possess receptors for them. The concentrations of opioid peptides in the peripheral circulation rapidly increase during inflammation and acute stress response. AIMS The effect of opioid peptides Met-enkephalin (M-ENK) and beta-endorphin (beta-END) on the oxidative metabolism of normal human neutrophils and their death by apoptosis in vitro was investigated. METHODS Isolated from peripheral blood, neutrophils were incubated in the presence or absence of 10(-6) to 10(-10) M of M-ENK and beta-END for 12 and 18 h. Apoptosis of neutrophils was determined in vitro by flow cytometric analysis of cellular DNA content and Annexin V-FITC protein binding to the cell surface. The MTT-reduction assay was employed to estimate the oxidative metabolism of neutrophils. RESULTS Treatment with M-ENK caused a significant increase in apoptotic cells after 18 h of culture: *0 M (control) versus 10(-10) M, p < or = 0.02; **10(-10) M versus 10(-10) M, p < or = 0.02. Treatment with beta-END caused a significant increase in apoptotic cells after 12 h of culture: 0 M versus 10(-8) M, p < or = 0.03; **0 M versus 10(-10) M, p < or = 0.04. We found the significant increase in MTT reduction by neutrophils in the presence of M-ENK and beta-END both before and after the culture. However, the ability of neutrophils to reduce the MTT salt to formazan decreased significantly after the culture. CONCLUSIONS We observed that the in vitro effect of opioid peptides on the neutrophil survival and their functional state was time and dose dependent. The presence of antioxidants in the culture medium modifies neutrophil survival.
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Affiliation(s)
- Zofia Sulowska
- Microbiology and Virology Center, Polish Academy of Sciences, Lodz, Poland
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46
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Strzetelski J, Krawczyk K, Kowalczyk J, Osięgłowski S, Pustkowiak H. Milk yield and composition in cows fed rations with
different energy and protein sources. J Anim Feed Sci 2001. [DOI: 10.22358/jafs/68010/2001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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Jassem J, Ramlau R, Karnicka-Młodkowska H, Krawczyk K, Krzakowski M, Zatloukal P, Lemarié E, Hartmann W, Novakova L, O'Brien M, Depierr A. A multicenter randomized phase II study of oral vs. intravenous vinorelbine in advanced non-small-cell lung cancer patients. Ann Oncol 2001; 12:1375-81. [PMID: 11762807 DOI: 10.1023/a:1012539225493] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.6] [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: 11/12/2022] Open
Abstract
PURPOSE A randomized phase II trial of oral vs. intravenous (i.v.) vinorelbine was designed to determine the efficacy and safety of oral vinorelbine with an intrapatient dose escalation in previously untreated patients with advanced non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS Between December 1997 and April 1999, 115 patients with stage IIIB or IV NSCLC were randomized (2 to 1) to receive either oral vinorelbine at a dose of 60 mg/m2/week for the first three administrations and then increased to 80 mg/m2/week in the absence of severe neutropenia, or i.v. vinorelbine at 30 mg/m2/week. RESULTS One hundred and fourteen patients (76 in the oral arm and 38 in the i.v. arm) were treated. Ninety-eight patients (86%) were eligible and assessable. The two treatment arms were well-balanced for demographic and prognostic features. After external panel review, the response rates in evaluable patients were 14%, in the oral arm and 12% in the i.v. arm. The median progression-free survival with oral and i.v. vinorelbine was 3.2 months and 2.1 months, respectively, and the median survival 9.3 and 7.9 months, respectively. The most common hematological toxicity was neutropenia, which was severe (grade 3-4) in 46% of patients and for 7% of administrations in the oral arm, and in 62% of patients and for 25% of administrations in the i.v. arm. Non-hematological toxicities including nausea, vomiting, anorexia, weight loss, diarrhea .and constipation were generally mild to moderate. CONCLUSION The activity of oral and i.v. vinorelbine in advanced NSCLC appears to be comparable. The safety profiles of both formulations look qualitatively similar. Oral vinorelbine can therefore be considered a good alternative to i.v. administration.
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Affiliation(s)
- J Jassem
- Department of Oncology and Radiotherapy, Medical University of Gdańsk, Poland.
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48
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Krawczyk K, Skucha W. [Incidence of chronic obstructive pulmonary disease among chronic smokers inhabiting Krakow and Proszowice]. Przegl Lek 2001; 57:617-8. [PMID: 11293207] [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: 02/19/2023]
Abstract
COPD is the most common chronic lung condition whose identification is delayed. This paper undertakes to identify the present COPD occurrence frequency in the urban area of Krakow and the rural area of Proszowice. It makes use of free of charge spirometry tests in > 40 year-old volunteers, with the smoking history of at least 1 pack of cigarettes per day for 10 years. One in four persons examined in Krakow and one in three persons examined in Proszowice manifested ventilation impairment mainly of the obturation type. Severe obturation was diagnosed in one in three persons with ventilation dysfunction. In the conclusion the vital influence of COPD on public health is stressed, which should prompt a serious programme of early COPD identification and treatment, on regional or national scale.
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Affiliation(s)
- K Krawczyk
- III Oddział Chorób Płuc Krakowskiego Szpitala
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49
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Zieliński J, Czajkowska-Malinowska M, Sankowski Z, Kisło A, Krawczyk K, Skucha W, Zalewska A, Remiszewski W, Kachel T, Cynowska B, Jedrzejczak M, Lichota I, Czechowska U, Trawińska E, Bednarek M. [Early detection of COPD by high risk population spirometric screening]. Pneumonol Alergol Pol 2001; 68:217-25. [PMID: 11004859] [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: 02/17/2023] Open
Abstract
UNLABELLED COPD is the most frequent chronic lung disease in Poland. The disease is however under-diagnosed, especially at the early stages. The aim of the study was to assess the efficacy of spirometric screening for COPD in middle aged smokers. Informations on causes and symptoms of COPD were disseminated in mass media in 14 large cities. Subject aged over 39 and with smoking history of > 10 packyears were invited for a free spirometry in local chest clinic. However, everyone attending had the spirometry performed. Spirometry was performed according to ATS recommendations. Airway obstruction (AO) was diagnosed when FEV1/FVC < 85% of N and categorised as mild (FEV1 > 70% of N), moderate (FEV1 50-69% of N) or severe (FEV1 < 50% of N). Spirometry was accompanied by an antismoking advice. RESULTS 12.781 subjects were screened (mean age 52 +/- 12 years, 57% males). In 8.269 subjects who complied with inclusion criteria AO was diagnosed in 29.8% (mild in 10.9%, moderate in 12% and severe in 6.9%). In smokers < 40 years of age and a history of < 10 packyears AO was found in 8.8% (mild in 6.0%, moderate in 1.8% and severe in 1.0%). CONCLUSION Mass spirometry is an effective and easy method for early detection of COPD.
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Affiliation(s)
- J Zieliński
- Instytut Gruźlicy i Chorób Płuc, Klinika Chorób Płuc, Warszawa
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Abstract
A number of factors influencing the development of dysphagia training programmes are identified, some of which relate to cultural issues and to the way systems operate. Lessons can be learned from current theories of relevance to effecting change in professionals' working practice. These lessons can be applied beyond dysphagia to other areas in which speech and language therapists are involved.
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Affiliation(s)
- R Miller
- Speech and Language Therapy Department, Stepping Hill Hospital, Poplar Grove, Stockport SK2 7JE
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