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Omeljaniuk WJ, Charkiewicz AE, Garley M, Ratajczak-Wrona W, Czerniecki J, Jabłońska E, Cechowska-Pasko M, Miltyk W. Bisphenol A: Potential Factor of Miscarriage in Women in the Context of the Phenomenon of Neutrophil Extracellular Traps. Arch Immunol Ther Exp (Warsz) 2022; 70:24. [PMID: 36181646 PMCID: PMC9526682 DOI: 10.1007/s00005-022-00661-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/08/2022] [Indexed: 11/05/2022]
Abstract
Humans are exposed to a number of environmental pollutants every day. Among them, endocrine disruptors are particularly harmful to human health. Bisphenol A (BPA) is a xenoestrogen that has been shown to disrupt the endocrine system and cause reproductive toxicity. In this study, we aimed to verify the potential relationship between BPA and miscarriage involving the formation of neutrophil extracellular traps (NETs). Blood samples were collected from healthy women and women who had miscarriage in the first trimester of pregnancy. The serum levels of cytoplasmic anti-PR3 antibody and perinuclear anti-MPO antibody were determined using an immunoenzymatic method. The concentrations of key proinflammatory proteins TNF-α and MCP-1, as well as NADPH oxidase subunits NOX1 and NCF2, were also measured in the serum samples. The serum concentration of BPA was determined using gas chromatography. The results showed that the concentrations of BPA were significantly elevated in the serum of women who had miscarriage compared to the control group, with the highest concentration found in the “NETs-positive” group. The levels of MCP-1 and TNF-α were significantly higher in the “NETs-positive” group compared to the “NETs-negative” and control group. The levels of NOX1 and NCF2 were also higher in the “NETs-positive” group compared to the “NETs-negative” group. The study showed that BPA could play a role in the course of miscarriage through the formation of NETs. The results indicate the need to limit the exposure of women planning pregnancy to xenoestrogens, including BPA.
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Affiliation(s)
- Wioleta Justyna Omeljaniuk
- Department of Analysis and Bioanalysis of Medicines, Medical University of Bialystok, Bialystok, Poland.
| | | | - Marzena Garley
- Department of Immunology, Medical University of Bialystok, Bialystok, Poland
| | | | - Jan Czerniecki
- Biology and Pathology of Human Reproduction, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences in Olsztyn, Olsztyn, Poland
| | - Ewa Jabłońska
- Department of Immunology, Medical University of Bialystok, Bialystok, Poland
| | | | - Wojciech Miltyk
- Department of Analysis and Bioanalysis of Medicines, Medical University of Bialystok, Bialystok, Poland
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Ratajczak-Wrona W, Garley M, Rusak M, Nowak K, Czerniecki J, Wolosewicz K, Dabrowska M, Wolczynski S, Radziwon P, Jablonska E. Sex-dependent dysregulation of human neutrophil responses by bisphenol A. Environ Health 2021; 20:5. [PMID: 33413436 PMCID: PMC7791670 DOI: 10.1186/s12940-020-00686-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 04/29/2020] [Accepted: 12/13/2020] [Indexed: 05/06/2023]
Abstract
BACKGROUND In the present study, we aimed to investigate selected functions of human neutrophils exposed to bisphenol A (BPA) under in vitro conditions. As BPA is classified among xenoestrogens, we compared its action and effects with those of 17β-estradiol (E2). METHODS Chemotaxis of neutrophils was examined using the Boyden chamber. Their phagocytosis and nicotinamide adenine dinucleotide phosphate hydrogen (NADPH) oxidase activity were assessed via Park's method with latex beads and Park's test with nitroblue tetrazolium. To assess the total concentration of nitric oxide (NO), the Griess reaction was utilized. Flow cytometry was used to assess the expression of cluster of differentiation (CD) antigens. The formation of neutrophil extracellular traps (NETs) was analyzed using a microscope (IN Cell Analyzer 2200 system). Expression of the investigated proteins was determined using Western blot. RESULTS The analysis of results obtained for both sexes demonstrated that after exposure to BPA, the chemotactic capacity of neutrophils was reduced. In the presence of BPA, the phagocytic activity was found to be elevated in the cells obtained from women and reduced in the cells from men. Following exposure to BPA, the percentage of neutrophils with CD14 and CD284 (TLR4) expression, as well as the percentage of cells forming NETs, was increased in the cells from both sexes. The stimulatory role of BPA and E2 in the activation of NADPH oxidase was observed only in female cells. On the other hand, no influence of E2 on the expression of CD14 and CD284, chemotaxis, phagocytosis, and the amount of NET-positive neutrophils was found for both sexes. The study further showed that BPA intensified NO production and iNOS expression in the cells of both sexes. In addition, intensified expression of all tested PI3K-Akt pathway proteins was observed in male neutrophils. CONCLUSIONS The study demonstrated the influence of BPA on neutrophil functions associated with locomotion and pathogen elimination, which in turn may disturb the immune response of these cells in both women and men. Analysis of the obtained data showed that the effect of this xenoestrogen on the human neutrophils was more pronounced than E2.
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Affiliation(s)
- Wioletta Ratajczak-Wrona
- Department of Immunology, Medical University of Bialystok, ul. Waszyngtona 15A, 15-269 Bialystok, Poland
| | - Marzena Garley
- Department of Immunology, Medical University of Bialystok, ul. Waszyngtona 15A, 15-269 Bialystok, Poland
| | - Malgorzata Rusak
- Department of Hematological Diagnostics, Medical University of Bialystok, ul. Waszyngtona 15A, 15-269 Bialystok, Poland
| | - Karolina Nowak
- Department of Immunology, Medical University of Bialystok, ul. Waszyngtona 15A, 15-269 Bialystok, Poland
| | - Jan Czerniecki
- Department of Biology and Pathology of Human Reproduction, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, ul. M. Sklodowskiej-Curie 24a, 15-276 Białystok, Poland
| | - Katarzyna Wolosewicz
- Department of Immunology, Medical University of Bialystok, ul. Waszyngtona 15A, 15-269 Bialystok, Poland
| | - Milena Dabrowska
- Department of Hematological Diagnostics, Medical University of Bialystok, ul. Waszyngtona 15A, 15-269 Bialystok, Poland
| | - Slawomir Wolczynski
- Department of Biology and Pathology of Human Reproduction, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, ul. M. Sklodowskiej-Curie 24a, 15-276 Białystok, Poland
- Department of Reproduction and Gynecological Endocrinology, Medical University of Bialystok, ul. M. Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Piotr Radziwon
- Regional Centre for Transfusion Medicine, Bialystok, ul. M. Skłodowskiej - Curie 23, 15-950 Bialystok, Poland
| | - Ewa Jablonska
- Department of Immunology, Medical University of Bialystok, ul. Waszyngtona 15A, 15-269 Bialystok, Poland
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Komarowska MD, Grubczak K, Czerniecki J, Hermanowicz A, Hermanowicz JM, Debek W, Matuszczak E. Identification of the Bisphenol A (BPA) and the Two Analogues BPS and BPF in Cryptorchidism. Front Endocrinol (Lausanne) 2021; 12:694669. [PMID: 34335471 PMCID: PMC8318035 DOI: 10.3389/fendo.2021.694669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/29/2021] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE to explore the association of plasma concentrations of bisphenol A (BPA), bisphenol S (BPS), and bisphenol F (BPF) with unilateral cryptorchidism. In addition, to analyze selected demographic and intraoperative characteristics. DESIGN Retrospective analysis to determine plasma concentrations of total BPA, BPS and BPF using gas chromatography - mass spectrometry (GC-MS) among prepubertal boys with cryptorchidism and prebupertal male control subjects. During operation, the size, turgor and location of the cryptorchid testes were assessed. MAIN OUTCOME MEASURE Plasma concentrations of total BPA, BPS and BPF. RESULTS In children with cryptorchidism, plasma levels of BPA, BPS and BPF were significantly higher compared to the control subjects. For BPA, it was: median value: 9.95 ng/mL vs. 5.54 ng/mL, p<0.05. For BPS, it was: median value: 3.93 ng/mL vs. 1.45 ng/mL, p<0.001. For BPF, it was: median value: 3.56 ng/mL vs. 1.83 ng/mL, p<0.05. In cryptorchid group, BPA was detected in 61.4% samples, BPS in 19.3% and BPF in 19.3%. All the three bisphenols were detected in plasma samples of both the healthy subjects and the study cohort. In the latter group, we found significant higher levels of BPA in boys from urban areas. We found a weak positive correlation between the levels of BPS and BPF and reduced turgor of the testes. Furthermore, results showed weak positive correlations between BPA and BPS levels and the age of the children as well as between BPS and BPF concentrations and the place of residence. CONCLUSIONS Results provide a first characterization of prepubertal boys suffering from cryptorchidism and exposed to different kind of bisphenols. Our study suggests that cryptorchid boys are widely exposed to BPA and, to a lesser extent, also to its alternatives, such as BPS and BPF.
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Affiliation(s)
- Marta Diana Komarowska
- Department of Pediatric Surgery and Urology, Faculty of Medicine, Medical University of Bialystok, Białystok, Poland
- *Correspondence: Marta Diana Komarowska, ; Justyna Magdalena Hermanowicz,
| | - Kamil Grubczak
- Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, Białystok, Poland
| | - Jan Czerniecki
- Department of Biology and Pathology of Human Reproduction, Institute of Animal Reproduction and Food Research Polish Academy of Sciences, Olsztyn, Poland
| | - Adam Hermanowicz
- Department of Pharmacodynamics, Medical University of Bialystok, Białystok, Poland
| | - Justyna Magdalena Hermanowicz
- Department of Pharmacodynamics, Medical University of Bialystok, Białystok, Poland
- Department of Clinical Pharmacy, Medical University of Bialystok, Białystok, Poland
- *Correspondence: Marta Diana Komarowska, ; Justyna Magdalena Hermanowicz,
| | - Wojciech Debek
- Department of Pediatric Surgery and Urology, Faculty of Medicine, Medical University of Bialystok, Białystok, Poland
| | - Ewa Matuszczak
- Department of Pediatric Surgery and Urology, Faculty of Medicine, Medical University of Bialystok, Białystok, Poland
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Ratajczak-Wrona W, Nowak K, Garley M, Grubczak K, Dabrowska D, Iwaniuk A, Wilk S, Moniuszko M, Czerniecki J, Wolczynski S, Jablonska E. Expression of serine proteases in neutrophils from women and men: Regulation by endocrine disruptor bisphenol A. Environ Toxicol Pharmacol 2019; 71:103212. [PMID: 31247398 DOI: 10.1016/j.etap.2019.103212] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 09/09/2018] [Revised: 06/10/2019] [Accepted: 06/17/2019] [Indexed: 05/22/2023]
Abstract
Bisphenol A (BPA) is a well-known endocrine disruptor. However, little information is available about its immunological effects. In the present study, we aimed to evaluate cytotoxic activity of BPA on human polymorphonuclear neutrophils (PMNs) according to gender and examine its effect on the expression of neutrophil serine proteases. Results indicated that exposure to BPA (above 16 μM) leads to a decrease in viability of PMNs and to morphological changes in these cells of both genders. The experiments showed different effects of BPA on the expression of proteinase 3, elastase, and cathepsin G in PMNs of both men and women, depending on the gender and concentration used. Thus, our findings suggest for the first time that through dysregulation of the expression of these enzymes, BPA may lead to disorders of the nonspecific cellular response in people exposed to this xenoestrogen.
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Affiliation(s)
| | - Karolina Nowak
- Department of Immunology, Medical University of Bialystok, Poland
| | - Marzena Garley
- Department of Immunology, Medical University of Bialystok, Poland
| | - Kamil Grubczak
- Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, Poland
| | - Dorota Dabrowska
- Department of Immunology, Medical University of Bialystok, Poland
| | | | - Sara Wilk
- Department of Immunology, Medical University of Bialystok, Poland
| | - Marcin Moniuszko
- Department of Regenerative Medicine and Immune Regulation, Medical University of Bialystok, Poland; Department of Allergology and Internal Medicine, Medical University of Bialystok, Poland
| | - Jan Czerniecki
- Department of Biology and Pathology of Human Reproduction, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Slawomir Wolczynski
- Department of Biology and Pathology of Human Reproduction, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland; Department of Reproduction and Gynecological Endocrinology, Medical University of Bialystok, Bialystok, Poland
| | - Ewa Jablonska
- Department of Immunology, Medical University of Bialystok, Poland
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Zbucka-Krętowska M, Łazarek U, Miltyk W, Sidorkiewicz I, Pierzyński P, Milewski R, Wołczyński S, Czerniecki J. Simultaneous analysis of bisphenol A fractions in maternal and fetal compartments in early second trimester of pregnancy. J Perinat Med 2019; 47:765-770. [PMID: 31348763 DOI: 10.1515/jpm-2019-0040] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 07/07/2019] [Indexed: 02/05/2023]
Abstract
Background Bisphenol A (BPA) is an estrogenic, endocrine-disrupting compound widely used in the industry. It is also a ubiquitous environmental pollutant. Its presence was confirmed in human fetuses, which results from maternal exposure during pregnancy. The mechanisms behind maternal-fetal transfer, and relationships between pregnant women and fetal exposures remain unclear. The aim of this study was to assess the impact of maternal exposure to BPA on the exposure of the fetus. Methods Maternal plasma and amniotic fluid samples were collected from 52 pregnant women undergoing amniocentesis for prenatal diagnosis of chromosomal abnormalities. BPA was measured by gas chromatography-mass spectrometry (GC-MS). The permeability factor - a ratio of fetal-to-maternal BPA concentration - was used as a measure delineating the transplacental transfer of BPA. Results The median concentration of maternal plasma BPA was 8 times higher than the total BPA concentration in the amniotic fluid (8.69 ng/mL, range: 4.3 ng/mL-55.3 ng/mL vs. median 1.03 ng/mL, range: 0.3 ng/mL-10.1 ng/mL). There was no direct relationship between the levels of BPA in maternal plasma and amniotic fluid levels. The permeability factor, in turn, negatively correlated with fetal development (birth weight) (R = -0.54, P < 0.001). Conclusion Our results suggest that the risk of fetal BPA exposure depends on placental BPA permeability rather than the levels of maternal BPA plasma concentration and support general recommendations to become aware and avoid BPA-containing products.
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Affiliation(s)
- Monika Zbucka-Krętowska
- Department of Reproduction and Gynaecological Endocrinology, Medical University of Bialystok, Marii Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Urszula Łazarek
- Department of Pharmaceutical Analysis, Medical University of Bialystok, Mickiewicza 2D, 15-522 Bialystok, Poland
| | - Wojciech Miltyk
- Department of Pharmaceutical Analysis, Medical University of Bialystok, Mickiewicza 2D, 15-522 Bialystok, Poland
| | - Iwona Sidorkiewicz
- Clinical Research Centre, Medical University of Bialystok, Marii Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Piotr Pierzyński
- Department of Reproduction and Gynaecological Endocrinology, Medical University of Bialystok, Marii Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Robert Milewski
- Department of Statistics and Medical Informatics, Medical University of Bialystok, Szpitalna 37, 15-295 Bialystok, Poland
| | - Sławomir Wołczyński
- Department of Reproduction and Gynaecological Endocrinology, Medical University of Bialystok, Marii Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Jan Czerniecki
- Department of Biology and Pathology of Human Reproduction, Institute of Animal Reproduction and Food Research, Polish Academy of Science, Tuwima 10, 10-748 Olsztyn, Poland
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Sztachelska M, Ponikwicka-Tyszko D, Sokolowska G, Anisimowicz S, Czerniecki J, Lebiedzinska W, Zbucka-Kretowska M, Zygmunt M, Wołczynski S, Pierzynski P. Oxytocin antagonism reverses the effects of high oestrogen levels and oxytocin on decidualization and cyclooxygenase activity in endometrial tissues. Reprod Biomed Online 2019; 39:737-744. [PMID: 31548121 DOI: 10.1016/j.rbmo.2019.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 02/25/2019] [Revised: 05/30/2019] [Accepted: 06/04/2019] [Indexed: 11/27/2022]
Abstract
RESEARCH QUESTION What is the in-vitro effect of oxytocin receptor (OTR) antagonism on parameters of receptivity in human endometrial explants and endometrial stromal cell lines cultured in oestradiol-rich conditions mimicking ovarian stimulation? DESIGN Experimental in-vitro study on endometrial tissue explants collected by aspiration biopsy from 30 women undergoing fertility treatment and cultured endometrial tHESC cell line. The study examined the effects of high oestradiol, oxytocin and OTR antagonist on parameters of decidualization (cell viability and prolactin secretion) as well as cyclooxygenase-1/2 (COX-1/2) activity and prostaglandin F2α (PGF2α) secretion. Changes in expression of OXTR and COX-2 genes were examined using quantitative polymerase chain reaction (qPCR). RESULTS In experiments on cultured endometrial cell line, high oestradiol and oxytocin similarly limited the viability of cells. In cultured endometrial explants both also decreased the secretion of prolactin (a marker of decidualization) and augmented endometrial COX-2 activity and formation of PGF2α. Oxytocin antagonist atosiban was confirmed to reverse the above effects, both in the endometrial line and endometrial explants. Addition of atosiban to cultures acted analogously in experiments employing both oxytocin and high oestradiol. CONCLUSIONS Oxytocin antagonist reversed the effects of high oestradiol and oxytocin on parameters related to endometrial receptivity in conditions mimicking ovarian stimulation. This might point to a novel, endometrium-related mechanism to support embryo implantation achieved by the application of oxytocin antagonist prior to embryo transfer.
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Affiliation(s)
- Maria Sztachelska
- Department of Biology and Pathology of Human Reproduction, Białystok, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, Olsztyn 10-748, Poland
| | - Donata Ponikwicka-Tyszko
- Department of Biology and Pathology of Human Reproduction, Białystok, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, Olsztyn 10-748, Poland
| | - Gabriela Sokolowska
- Department of Reproduction and Gynecological Endocrinology, Medical University of Białystok, M. Sklodowskiej-Curie 24a, Białystok 15-276, Poland
| | | | - Jan Czerniecki
- Department of Biology and Pathology of Human Reproduction, Białystok, Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, Olsztyn 10-748, Poland
| | - Weronika Lebiedzinska
- Department of Reproduction and Gynecological Endocrinology, Medical University of Białystok, M. Sklodowskiej-Curie 24a, Białystok 15-276, Poland
| | - Monika Zbucka-Kretowska
- Department of Reproduction and Gynecological Endocrinology, Medical University of Białystok, M. Sklodowskiej-Curie 24a, Białystok 15-276, Poland
| | - Marek Zygmunt
- Department of Obstetrics and Gynecology, University of Greifswald, Ferdinand-Sauerbruchstrasse, Greifswald D-17489, Germany
| | - Slawomir Wołczynski
- Department of Reproduction and Gynecological Endocrinology, Medical University of Białystok, M. Sklodowskiej-Curie 24a, Białystok 15-276, Poland
| | - Piotr Pierzynski
- Department of Reproduction and Gynecological Endocrinology, Medical University of Białystok, M. Sklodowskiej-Curie 24a, Białystok 15-276, Poland.
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Sidorkiewicz I, Czerniecki J, Jarząbek K, Zbucka-Krętowska M, Wołczyński S. Cellular, transcriptomic and methylome effects of individual and combined exposure to BPA, BPF, BPS on mouse spermatocyte GC-2 cell line. Toxicol Appl Pharmacol 2018; 359:1-11. [DOI: 10.1016/j.taap.2018.09.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 08/28/2018] [Accepted: 09/05/2018] [Indexed: 12/13/2022]
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Siemieniuk M, Sosnowska K, Czerniecki J, Czyzewska U, Winnicka K, Tylicki A. Oxythiamine improves antifungal activity of ketoconazole evaluated in canineMalassezia pachydermatisstrains. Vet Dermatol 2018; 29:476-e160. [DOI: 10.1111/vde.12688] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2018] [Indexed: 01/23/2023]
Affiliation(s)
- Magdalena Siemieniuk
- Department of Cytobiochemistry; Institute of Biology; University of Bialystok; Ciolkowskiego 1J, 15?245 Bialystok Poland
- Laboratory of Tissue Culture; Institute of Biology; University of Bialystok; Ciolkowskiego 1J, 15?245 Bialystok Poland
| | - Katarzyna Sosnowska
- Department of Pharmaceutical Technology; Medical University of Bialystok; Mickiewicza 2c, 15-222 Bialystok Poland
| | - Jan Czerniecki
- Department of Biology and Pathology of Human Reproduction; Institute of Animal Reproduction and Food Research; Polish Academy of Sciences; Tuwima 10, 10-748 Olsztyn Poland
| | - Urszula Czyzewska
- Department of Cytobiochemistry; Institute of Biology; University of Bialystok; Ciolkowskiego 1J, 15?245 Bialystok Poland
- Laboratory of Tissue Culture; Institute of Biology; University of Bialystok; Ciolkowskiego 1J, 15?245 Bialystok Poland
| | - Katarzyna Winnicka
- Department of Pharmaceutical Technology; Medical University of Bialystok; Mickiewicza 2c, 15-222 Bialystok Poland
| | - Adam Tylicki
- Department of Cytobiochemistry; Institute of Biology; University of Bialystok; Ciolkowskiego 1J, 15?245 Bialystok Poland
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9
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Zbucka-Kretowska M, Zbucki R, Parfieniuk E, Maslyk M, Lazarek U, Miltyk W, Czerniecki J, Wolczynski S, Kretowski A, Ciborowski M. Evaluation of Bisphenol A influence on endocannabinoid system in pregnant women. Chemosphere 2018; 203:387-392. [PMID: 29627605 DOI: 10.1016/j.chemosphere.2018.03.195] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 03/29/2018] [Accepted: 03/29/2018] [Indexed: 06/08/2023]
Abstract
Bisphenol A (BPA) is a synthetic chemical widely used in the industry, which may potentially evoke negative effects on human health, especially on reproductive processes and fetal development. BPA has been reported to act on estrogen, estrogen-related, androgen, thyroid hormone, pregnane X, peroxisome proliferation-activated, and aryl hydrocarbon receptors. However, other potential mechanisms of BPA action on pregnancy cannot be excluded. Comprehensive evaluation of BPA effect on pregnant women can be performed by use of metabolomics. In the present study LC-MS-based plasma metabolomics was performed in the group of pregnant women with known concentrations of free, conjugated and total BPA. Significant positive correlations were observed between several endocannabinoids (fatty acid amides) and free (r = 0.307-0.557, p-value = 0.05-0.00002) and total (r = 0.413-0.519, p-value = 0.008-0.00006) BPA concentrations. Palmitoleamide was positively correlated with conjugated (r = 0.348, p-value = 0.05) while lysophosphatidylethanolamine 18:0 with free (r = 0.519, p-value = 0.00006) BPA concentration. The docking calculations of BPA and fatty acid amide hydrolase (enzyme degrading endocannabinoids, FAAH) indicated that it can act as a competitive inhibitor by blocking FAAH catalytic residues. In vitro study showed that BPA moderately inhibits FAAH activity (15% decrease for 200 ng mL-1 and almost 50% for 200 μg mL-1 of BPA). In the present study for the first time inhibitory potential of BPA on FAAH hydrolase is reported. Inhibition of FAAH may lead to a rise of plasma endocannabinoids level. BPA exposure and increased level of endocannabinoids are miscarriage risk factors. Based on obtained results it can be hypothesized that BPA may induce adverse pregnancy outcomes by acting on endocannabinoid system.
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Affiliation(s)
- Monika Zbucka-Kretowska
- Department of Reproduction and Gynaecological Endocrinology, Medical University of Bialystok, Marii Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Robert Zbucki
- 1st Clinical Department of General and Endocrine Surgery, Medical University of Bialystok, Marii Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Ewa Parfieniuk
- Clinical Research Centre, Medical University of Bialystok, M. Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Maciej Maslyk
- Department of Molecular Biology, Institute of Biotechnology, The John Paul II Catholic University of Lublin, Konstantynow 1i, 20-708 Lublin, Poland
| | - Urszula Lazarek
- Department of Pharmaceutical Analysis, Medical University of Bialystok, Mickiewicza 2D, 15-522 Bialystok, Poland
| | - Wojciech Miltyk
- Department of Pharmaceutical Analysis, Medical University of Bialystok, Mickiewicza 2D, 15-522 Bialystok, Poland
| | - Jan Czerniecki
- Department of Reproduction and Gynaecological Endocrinology, Medical University of Bialystok, Marii Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Slawomir Wolczynski
- Department of Reproduction and Gynaecological Endocrinology, Medical University of Bialystok, Marii Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Adam Kretowski
- 1st Clinical Department of General and Endocrine Surgery, Medical University of Bialystok, Marii Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland
| | - Michal Ciborowski
- 1st Clinical Department of General and Endocrine Surgery, Medical University of Bialystok, Marii Sklodowskiej-Curie 24a, 15-276 Bialystok, Poland.
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10
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Zbucka-Kretowska M, Charkiewicz K, Czerniecki J, Goscik J, Wolczynski S, Laudanski P. Amniotic Fluid Angiogenic and Inflammatory Factor Profiling in Foetal Down Syndrome. Fetal Diagn Ther 2017; 44:44-50. [PMID: 28715807 DOI: 10.1159/000478260] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 04/10/2017] [Accepted: 06/06/2017] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Angiogenic factors are proteins that can potentially be related to certain foetal chromosomal abnormalities. The goal of this study was to determine the concentrations of 60 angiogenic factors in the amniotic fluid of women carrying foetuses with Down syndrome (DS). METHODS After analysis of the karyotyping results, for the purpose of this study, we chose 12 women with foetal DS. For the control group, we selected 12 healthy patients with uncomplicated pregnancies (15-18 weeks of gestation) who delivered healthy newborns at term. To assess the concentrations of proteins in the amniotic fluid, we used a protein macroarray, which enabled the simultaneous determination of 60 angiogenic factors per sample. RESULTS In the amniotic fluid of women with foetal DS compared to patients with healthy foetuses, we reported significant decreases in the concentrations of 14 angiogenic factors, including leptin, angiopoietin 1 (ANG-1), angiostatin, epidermal growth factor (EGF), interleukin 1-beta (IL-1b), interleukin 4 (IL-4), interleukin 12p40 (IL-12p40), monocyte chemotactic protein 2 (MCP-2), matrix metalloproteinase-1 (MMP-1), matrix metalloproteinase-9 (MMP-9), platelet endothelial cell adhesion molecule 1 (PECAM-1), transforming growth factor alpha (TGF alpha), vascular endothelial growth factor 2 (VEGFR2), and vascular endothelial growth factor 3 (VEGFR3). CONCLUSIONS Based on our findings, we hypothesise that angiogenic factors may play roles in the pathogenesis of DS. Defining the factors' potential as biochemical factors of DS requires further investigation in a larger group of patients.
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Affiliation(s)
- Monika Zbucka-Kretowska
- Department of Reproduction and Gynaecological Endocrinology, Medical University of Bialystok, Bialystok, Poland
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11
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Abstract
Endocrine-disrupting chemicals (EDCs) are exogenous compounds that can cause disturbances in the endocrine system and have multiple harmful effects on health by targeting different organs and systems in the human body. Mass industrial production and widespread use of EDCs have resulted in worldwide contamination. Accumulating evidence suggest that human exposure to EDCs is related to the impairment of male reproductive function and can interrupt other hormonally regulated metabolic processes, particularly if exposure occurs during early development. Investigation of studies absent in previous reviews and meta-analysis of adverse effects of EDCs on functioning of the male reproductive system is the core of this work. Four main modes of action of EDCs on male fertility have been summarized in this review. First, studies describing estrogen- pathway disturbing chemicals are investigated. Second, androgen-signaling pathway alterations and influence on androgen sensitive tissues are examined. Third, evaluation of steroidogenesis dysfunction is discussed by focusing on the steroid hormone biosynthesis pathway, which is targeted by EDCs. Last, the reportedly destructive role of reactive oxygen species (ROS) on sperm function is discussed. Spermatogenesis is a remarkably complex process, hence multiple studies point out various dysfunctions depending on the development state at which the exposure occurred. Collected data show the need to account for critical windows of exposure such as fetal, perinatal and pubertal periods as well as effects of mixtures of several compounds in future research.
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Affiliation(s)
- Iwona Sidorkiewicz
- 1 Department of Reproduction and Gynecological Endocrinology, Medical University of Białystok, Białystok, Poland
| | - Kamil Zaręba
- 1 Department of Reproduction and Gynecological Endocrinology, Medical University of Białystok, Białystok, Poland
| | - Sławomir Wołczyński
- 1 Department of Reproduction and Gynecological Endocrinology, Medical University of Białystok, Białystok, Poland.,2 Department of Biology and Pathology of Human Reproduction, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Jan Czerniecki
- 2 Department of Biology and Pathology of Human Reproduction, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
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12
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Milewski R, Czerniecki J, Kuczyńska A, Stankiewicz B, Kuczyński W. Morphokinetic parameters as a source of information concerning embryo developmental and implantation potential. Ginekol Pol 2016; 87:677-684. [DOI: 10.5603/gp.2016.0067] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 07/22/2016] [Accepted: 09/29/2016] [Indexed: 11/25/2022] Open
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13
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Czerniecki J, Turner A, Williams R, Thompson M, Hakimi K, Landry G, Norvell D. A Novel Prediction Tool to Predict Mobility Outcome After Lower Extremity Amputation Secondary to Peripheral Arterial Disease and/or Diabetes. Eur J Vasc Endovasc Surg 2016. [DOI: 10.1016/j.ejvs.2016.07.049] [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: 10/21/2022]
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14
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Milewski R, Milewska A, Czerniecki J, Leśniewska M, Wołczyński S. Analysis of the demographic profile of patients treated for infertility using assisted reproductive techniques in 2005-2010. Ginekol Pol 2013; 84:609-14. [DOI: 10.17772/gp/1612] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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15
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Ksiazek A, Czerniecki J, Konarzewski M. Phenotypic flexibility of traits related to energy acquisition in mice divergently selected for basal metabolic rate (BMR). ACTA ACUST UNITED AC 2009; 212:808-14. [PMID: 19251997 DOI: 10.1242/jeb.025528] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Theoretical considerations suggest that one of the main factors determining phenotypic flexibility of the digestive system is the size (mass) of internal organs. To test this, we used mice from two lines selected for high and low levels of basal metabolic rate (BMR). Mice with higher BMRs also have larger internal organs and higher daily food consumption (C) under non-stressful conditions. We exposed animals from both lines to a sudden cold exposure by transferring them (without prior acclimation) from an ambient temperature of 23 degrees C to 5 degrees C. Cold exposure elicited a twofold increase in C and a 25% reduction of apparent digestive efficiency. For the same body mass-corrected C, small intestine, kidneys, heart and liver of cold-exposed low-BMR mice were smaller than those of the high-BMR line. Therefore, the internal organs of low-BMR animals were burdened with substantially higher metabolic loads (defined as C or digestible food intake per total mass of a particular organ). The mass-specific activity of citrate synthase (CS) in the liver and kidneys (but not heart) was also lower in the low-BMR mice. The magnitude of phenotypic flexibility of internal organ size and CS activity was strictly proportional to the organ mass (in the case of kidneys and liver, also mass-specific CS activity) prior to an increased energy demand. Thus, phenotypic flexibility had additive rather than multiplicative dynamics. Our results also suggest that variation in BMR positively correlates with the magnitude of an immediate spare capacity that fuels the initial response of internal organs to a sudden metabolic stress.
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Affiliation(s)
- Aneta Ksiazek
- Institute of Biology, University of Białystok, Swierkowa 20b, 15-950 Białystok, Poland.
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16
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Tylicki A, Ziolkowska G, Bolkun A, Siemieniuk M, Czerniecki J, Nowakiewicz A. Comparative study of the activity and kinetic properties of malate dehydrogenase and pyruvate decarboxylase from Candida albicans, Malassezia pachydermatis, and Saccharomyces cerevisiae. Can J Microbiol 2008; 54:734-41. [PMID: 18772936 DOI: 10.1139/w08-062] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Candida albicans and Malassezia pachydermatis cause human and animal infections of the skin and internal organs. We compare the properties of two enzymes, pyruvate decarboxylase (PDC) and malate dehydrogenase (MDH), from these species and from Saccharomyces cerevisiae cultivated under aerobic and anaerobic conditions to find differences between the enzymes that adapt pathogens for virulence and help us in searching for new antifungal agents. Malassezia pachydermatis did not show any growth under anaerobic conditions, as opposed to C. albicans and S. cerevisiae. Under aerobic conditions, C. albicans showed the highest growth rate. Malassezia pachydermatis, contrary to the others, did not show any PDC activity, simultaneously showing the highest MDH activity under aerobic conditions and a Km value for oxaloacetate lower than S. cerevisiae. Candida albicans and S. cerevisiae showed a strong decrease in MDH activity under anaerobic conditions. Candida albicans shows four different isoforms of MDH, while M. pachydermatis and S. cerevisiae are characterized by two and three isoforms. Candida albicans shows about a twofold lower activity of PDC but, simultaneously, almost a threefold lower Km value for pyruvate in comparison with S. cerevisiae. The PDC apoform share under aerobic conditions in C. albicans was 47%, while in S. cerevisiae was only 26%; under anaerobic conditions, the PDC apoform decreased to 12% and 8%, respectively. The properties of enzymes from C. albicans show its high metabolic flexibility (contrary to M. pachydermatis) and cause easy switching between fermentative and oxidative metabolism. This feature allows C. albicans to cause both surface and deep infections. We take into consideration the use of thiamin antimetabolites as antifungal factors that can affect both oxidative and fermentative metabolism.
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Affiliation(s)
- Adam Tylicki
- Institute of Biology, University of Białystok, Swierkowa 20B, 15-950 Białystok, Poland.
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17
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Szyniarowski P, Lakaye B, Czerniecki J, Makarchikov AF, Wins P, Margineanu I, Coumans B, Grisar T, Bettendorff L. Pig tissues express a catalytically inefficient 25-kDa thiamine triphosphatase: insight in the catalytic mechanisms of this enzyme. Biochim Biophys Acta Gen Subj 2005; 1725:93-102. [PMID: 16000236 DOI: 10.1016/j.bbagen.2005.05.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2005] [Revised: 05/04/2005] [Accepted: 05/24/2005] [Indexed: 10/25/2022]
Abstract
Thiamine triphosphate (ThTP) is found in most organisms and may be an intracellular signal molecule produced in response to stress. We have recently cloned the cDNA coding for a highly specific mammalian 25-kDa thiamine triphosphatase. The enzyme was active in all mammalian species studied except pig, although the corresponding mRNA was present. In order to determine whether the very low ThTPase activity in pig tissues is due to the absence of the protein or to a lack of catalytic efficiency, we expressed human and pig ThTPase in E. coli as GST fusion proteins. The purified recombinant pig GST-ThTPase was found to be 2-3 orders of magnitude less active than human GST-ThTPase. Using site-directed mutagenesis, we show that, in particular, the change of Glu85 to lysine is responsible for decreased solubility and catalytic activity of the pig enzyme. Immunohistochemical studies revealed a distribution of the protein in pig brain very similar to the one reported in rodent brain. Thus, our results suggest that a 25-kDa protein homologous to hThTPase but practically devoid of enzyme activity is expressed in pig tissues. This raises the possibility that this protein may play a physiological role other than ThTP hydrolysis.
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Affiliation(s)
- Piotr Szyniarowski
- Center for Cellular and Molecular Neurobiology, University of Liège, B-4000 Liège, Belgium
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18
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Tylicki A, Czerniecki J, Dobrzyn P, Matanowska A, Olechno A, Strumilo S. Modification of thiamine pyrophosphate dependent enzyme activity by oxythiamine inSaccharomyces cerevisiaecells. Can J Microbiol 2005; 51:833-9. [PMID: 16333342 DOI: 10.1139/w05-072] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [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: 11/22/2022]
Abstract
Oxythiamine is an antivitamin derivative of thiamine that after phosphorylation to oxythiamine pyro phos phate can bind to the active centres of thiamine-dependent enzymes. In the present study, the effect of oxythiamine on the viability of Saccharomyces cerevisiae and the activity of thiamine pyrophosphate dependent enzymes in yeast cells has been investigated. We observed a decrease in pyruvate decarboxylase specific activity on both a control and an oxythiamine medium after the first 6 h of culture. The cytosolic enzymes transketolase and pyruvate decarboxylase decreased their specific activity in the presence of oxythiamine but only during the beginning of the cultivation. However, after 12 h of cultivation, oxythiamine-treated cells showed higher specific activity of cytosolic enzymes. More over, it was established by SDS–PAGE that the high specific activity of pyruvate decarboxylase was followed by an increase in the amount of the enzyme protein. In contrast, the mitochondrial enzymes, pyruvate dehydrogenase and 2-oxoglutarate dehydrogenase complexes, were inhibited by oxythiamine during the entire experiment. Our results suggest that the observed strong decrease in growth rate and viability of yeast on medium with oxythiamine may be due to stronger in hibition of mitochondrial pyruvate dehydrogenase than of cytosolic enzymes.Key words: pyruvate dehydrogenase, 2-oxoglutarate dehydrogenase, transketolase, pyruvate decarboxylase, activity, oxythiamine, inhibition.
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Affiliation(s)
- Adam Tylicki
- Institute of Biology, University of Bialystok, Bialystok, Poland.
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19
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Lakaye B, Verlaet M, Dubail J, Czerniecki J, Bontems S, Makarchikov AF, Wins P, Piette J, Grisar T, Bettendorff L. Expression of 25 kDa thiamine triphosphatase in rodent tissues using quantitative PCR and characterization of its mRNA. Int J Biochem Cell Biol 2005; 36:2032-41. [PMID: 15203116 DOI: 10.1016/j.biocel.2004.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2004] [Accepted: 03/19/2004] [Indexed: 01/19/2023]
Abstract
Thiamine triphosphate (ThTP) is found in most organisms, but its biological role remains unclear. In mammalian tissues, cellular ThTP concentrations remain low, probably because of hydrolysis by a specific 25 kDa thiamine triphosphatase (ThTPase). The aim of the present study was to use quantitative PCR, for comparing the 25 kDa ThTPase mRNA expression in various mouse tissues with its enzyme activities. ThTPase mRNA was expressed at only a few copies per cell. The highest amount of mRNA was found in testis, followed by lung and muscle, while the highest enzyme activities were found in liver and kidney. The poor correlation between mRNA levels and enzyme activities might result either from tissue-specific post-transcriptional regulation of mRNA processing and/or translation or from the regulation of enzyme activities by post-translational mechanisms. Purified recombinant human ThTPase was phosphorylated by casein kinase II, but this phosphorylation did not modify the enzyme activity. However, the characterization of the 3'-untranslated mRNA region revealed a unique, highly conserved, 200-nucleotide sequence that might be involved in translational control. In situ hybridization studies in testis suggest a predominant localization of ThTPase mRNA in poorly differentiated spermatogenic cells. This is the first study demonstrating a cell-specific 25 kDa ThTPase mRNA expression, suggesting that this enzyme might be related to the degree of differentiation or the metabolic state of the cell.
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Affiliation(s)
- Bernard Lakaye
- Center for Cellular and Molecular Neurobiology, University of Liège, 17 Place Delcour, 4020 Liège, Belgium
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20
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Strumilo S, Dobrzyn P, Czerniecki J, Tylicki A. Suicidal dephosphorylation of thiamine pyrophosphate coupled with pyruvate dehydrogenase complex. Ital J Biochem 2004; 53:131-4. [PMID: 15997904] [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: 05/03/2023]
Abstract
Earlier it was noted that purified pyruvate dehydrogenase complex (PDC) produced by "Sigma" usually contains almost saturating amounts of thiamine pyrophosphate (ThPP). In this communication we present the observation that the endogenous ThPP coupled to PDC is dephosphorylated while staying at -10 degrees C, because in the enzyme preparation thiamine monophosphate and un-phosphorylated thiamine appear (HPLC determination). Under the same conditions exogenous ThPP is not dephosphorylated despite contact with the PDC preparation. This may suggest that interactions of some active groups of the enzyme with molecules of endogenous ThPP leads to break-up of the phosphoesters bonds, and destruction of the coenzyme. Decrease of PDC activity during storage is not in proportion with the degree of ThPP dephosphorylation. However the observed instability of PDC activity may be a consequence of the spontaneous process of its coenzyme autodestruction.
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Affiliation(s)
- Slawomir Strumilo
- Department of Animal Biochemistry, Institute of Biology, University of Bialystok, ul. Swierkowa 20B 15-950 Bialystok, Poland.
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21
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Czerniecki J, Chanas G, Verlaet M, Bettendorff L, Makarchikov AF, Leprince P, Wins P, Grisar T, Lakaye B. Neuronal localization of the 25-kDa specific thiamine triphosphatase in rodent brain. Neuroscience 2004; 125:833-40. [PMID: 15120844 DOI: 10.1016/j.neuroscience.2004.02.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/26/2004] [Indexed: 11/22/2022]
Abstract
Thiamine triphosphate (ThTP) is found in small amounts in most organisms from bacteria to mammals, but little is known about its physiological role. In vertebrate tissues, ThTP may act as a phosphate donor for the phosphorylation of certain proteins; this may be part of a new signal transduction pathway. We have recently characterized a highly specific 25-kDa thiamine triphosphatase (ThTPase) that is expressed in most mammalian tissues. The role of this enzyme may be the control of intracellular concentrations of ThTP. As the latter has been considered to be a neuroactive form of thiamine, we have studied the distribution of ThTPase mRNA and protein in rodent brain using in situ hybridization and immunohistochemistry. With both methods, we found the strongest staining in hippocampal pyramidal neurons, as well as cerebellar granule cells and Purkinje cells. Some interneurons were also labeled and many ThTPase mRNA-positive and immunoreactive cells were distributed throughout cerebral cortical gray matter and the thalamus. White matter was not significantly labeled. ThTPase immunoreactivity seems to be located mainly in the cytoplasm of neuronal perikarya. Immunocytochemical data using dissociated cultured cells from hippocampal and cerebellum showed that the staining was more intense in neurons than in astrocytes. The protein was rather uniformly located in the perikarya and dendrites, suggesting that ThTP and ThTPase may play a general role in neuronal metabolism rather than a specific role in excitability. There was no apparent correlation between ThTPase expression and selective vulnerability of certain brain regions to thiamine deficiency.
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Affiliation(s)
- J Czerniecki
- Center for Cellular and Molecular Neurobiology, University of Liège, 17 place Delcour, B-4020 Liège, Belgium
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22
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Tylicki A, Łempicka A, Romaniuk-Demonchaux K, Czerniecki J, Dobrzyń P, Strumiło S. Effect of oxythiamin on growth rate, survival ability and pyruvate decarboxylase activity inSaccharomyces cerevisiae. J Basic Microbiol 2003; 43:522-9. [PMID: 14625902 DOI: 10.1002/jobm.200310290] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [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: 11/09/2022]
Abstract
Oxythiamin is one of the antivitamin derivatives of thiamin which, after phosphorylation, can be bound to the catalytic centre of thiamin-dependent enzymes and inhibit these enzymes. In this work the influence of oxythiamin on the growth rate, survival and the activity of pyruvate decarboxylase of Saccharomyces cerevisiae (s288c) was investigated. Oxythiamin decreased both the growth rate and survival ability of yeast cells. Moreover, in three-day-old cultures on a medium with oxythiamin, an increase of pyruvate decarboxylase activity was observed. This unusual effect may be in response to the earlier inhibition of pyruvate decarboxylase. A high concentration of pyruvate in the cell extracts taken from the medium with oxythiamin was found. This accumulation of pyruvate could provide for enhanced biosynthesis of the pyruvate decarboxylase apoform and an increase of enzyme activity.
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Affiliation(s)
- Adam Tylicki
- Institute of Biology, University of Białystok, Swierkowa 20 B, 15-950 Białystok, Poland.
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23
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Makarchikov AF, Lakaye B, Gulyai IE, Czerniecki J, Coumans B, Wins P, Grisar T, Bettendorff L. Thiamine triphosphate and thiamine triphosphatase activities: from bacteria to mammals. Cell Mol Life Sci 2003; 60:1477-88. [PMID: 12943234 DOI: 10.1007/s00018-003-3098-4] [Citation(s) in RCA: 76] [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: 10/26/2022]
Abstract
In most organisms, the main form of thiamine is the coenzyme thiamine diphosphate. Thiamine triphosphate (ThTP) is also found in low amounts in most vertebrate tissues and can phosphorylate certain proteins. Here we show that ThTP exists not only in vertebrates but is present in bacteria, fungi, plants and invertebrates. Unexpectedly, we found that in Escherichia coli as well as in Arabidopsis thaliana, ThTP was synthesized only under particular circumstances such as hypoxia (E. coli) or withering (A. thaliana). In mammalian tissues, ThTP concentrations are regulated by a specific thiamine triphosphatase that we have recently characterized. This enzyme was found only in mammals. In other organisms, ThTP can be hydrolyzed by unspecific phosphohydrolases. The occurrence of ThTP from prokaryotes to mammals suggests that it may have a basic role in cell metabolism or cell signaling. A decreased content may contribute to the symptoms observed during thiamine deficiency.
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Affiliation(s)
- A F Makarchikov
- Center for Cellular and Molecular Neurobiology, University of Liège, place Delcour 17, 4020 Liège, Belgium
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24
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Czerniecki J, Czygier M. Cooperation of divalent ions and thiamin diphosphate in regulation of the function of pig heart pyruvate dehydrogenase complex. J Nutr Sci Vitaminol (Tokyo) 2001; 47:385-6. [PMID: 11922112 DOI: 10.3177/jnsv.47.385] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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: 11/27/2022]
Abstract
The role of Mg2+, Ca2+, and Mn2+ in regulation of purified pig heart pyruvate dehydrogenase complex (PDC) containing endogenous thiamin diphosphate (TDP) was studied. It was found that the effects of the cations depended on the presence of exogenous TDP. In the absence of added TDP, the divalent cations led to a shortening of a lag phase of the PDC reaction and a strong reduction of the Km value for pyruvate. The relative efficiency of the three types of ions are presented as follows: Mn2+>Ca2+>Mg2+. The other sources claim that in the presence of exogenous TDP, which alone strongly increased the affinity of PDC for pyruvate, any significant additional effects of the cations were not observed. However, Mg2+, Ca2+, and Mn2+ decreased the Km value for CoA in both cases, the absence and presence of exogenous TDP, in approximately a similar extent (about twofold). The affinity of PDC for NAD+ seems to be not sensitive to the presence of the divalent cations. The data obtained suggest that Mg2+, Ca2+, and Mn2+ can cooperate with TDP as positive regulatory effectors of pig heart PDC on the level of pyruvate dehydrogenase and lipoamide acetyltransferase components of the complex.
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Affiliation(s)
- J Czerniecki
- Department of Biochemistry, Institute of Biology, University of Bialystok, Poland
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25
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Weaver K, Price R, Czerniecki J, Sangeorzan B. Design and validation of an instrument package designed to increase the reliability of ankle range of motion measurements. J Rehabil Res Dev 2001; 38:471-5. [PMID: 11732825] [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: 02/22/2023]
Abstract
OBJECTIVE To validate a novel device termed the equinometer, which is designed to accurately measure ankle dorsiflexion. DESIGN Test retest reliability analysis using serial measurements of dorsiflexion endpoint in a group of normal individuals. SETTING Motion analysis laboratory. PARTICIPANTS Ten healthy individuals. PRIMARY OUTCOME MEASURE The mean and standard deviation of the absolute difference in dorsiflexion endpoint for the group. RESULTS The mean absolute change in dorsiflexion endpoint for the group was 0.45 degrees with a standard deviation of 0.43 degrees. CONCLUSIONS With the use of the device described, the mean change in dorsiflexion endpoint was well within acceptable clinical limits. The reliability of measurements obtained with the equinometer exceeds that which has been published with other techniques and devices.
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Affiliation(s)
- K Weaver
- Harborview Medical Center, Department of Rehabilitation Medicine, Seattle, WA 98104-2499, USA
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26
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Abstract
The kinetic behavior of pig heart pyruvate dehydrogenase complex (PDC) containing bound endogenous thiamin pyrophosphate (TPP) was affected by exogenous TPP. In the absence of exogenous TPP, a lag phase of the PDC reaction was observed. TPP added to the PDC reaction medium containing Mg2+ led to a disappearance of the lag phase, inducing strong reduction of the Km value for pyruvate (from 76.7 to 19.0 microM) but a more moderate decrease of Km for CoA (from 12.2 to 4.3 microM) and Km for NAD+ (from 70.2 to 33.6 microM), with no considerable change in the maximum reaction rate. Likewise, thiamin monophosphate (TMP) decreased the Km value of PDC for pyruvate, but to a lesser extent (from 76.7 to 57.9 microM) than TPP. At the unsaturating level of pyruvate, the A50 values for TPP and TMP were 0.2 microM and 0.3 mM, respectively. This could mean that the effect of TPP on PDC was more specific. In addition, exogenous TPP changed the UV spectrum and lowered the fluorescence emission of the PDC containing bound endogenous TPP in its active sites. The data obtained suggest that TPP plays, in addition to its catalytic function, the important role of positive regulatory effector of pig heart PDC.
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Affiliation(s)
- S Strumilo
- Department of Biochemistry, Institute of Biology, University of Bialystok, Bialystok, 15950, Poland.
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Abstract
Recent advances in prosthetic technology have resulted in prosthetic limbs that weigh substantially less than those previously used by amputees. Although one of the clinical expectations associated with lighter limbs was that they would reduce the abnormally high metabolic cost of amputee ambulation, this has not be shown in oxygen consumption studies. This expectation was based on previous studies of normal walking, which showed that the greatest changes in mechanical work occurs in the leg during swing phase acceleration and deceleration. To better understand the relationship between limb mass and mechanical work, this study assessed the effect of varying prosthetic limb masses on the sources and magnitude of the mechanical work required for limb movement during swing. Eight above-knee amputees were studied during over ground walking at their self-selected speeds while wearing identical prosthetic limbs under three weight conditions: unweighted; 0.68 kg of added mass; 1.34 kg of added mass. Using inverse dynamics, the mechanical work from muscle sources and joint transfer sources that was used to accelerate the limb forward during late stance and early swing was determined and compared with the recovery of energy from the limb by hip joint transfer to the trunk during terminal swing deceleration. With the addition of 1.34 kg of mass, there was a combined increase in hip flexor muscle concentric work and mechanical energy transfer across the hip joint of 5.4 J, which was needed to accelerate the heavier prosthetic limb into the swing phase. The increase in acceleration work was balanced by a comparable increase (5.6 J) in the recovery of leg energy during terminal swing deceleration. By effectively conserving the additional mechanical work needed to propel a heavier limb, amputees appear to minimize any adverse effect of prosthetic mass on the mechanical work of walking. This may explain the absence of differences in metabolic cost between limbs of different masses.
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Affiliation(s)
- A Gitter
- Department of Physical Medicine & Rehabilitation, Puget Sound Veterans Health Care System, Rehabilitation Medicine, Seattle, Washington 98108, USA
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Gitter A, Czerniecki J, Weaver K. A reassessment of center-of-mass dynamics as a determinate of the metabolic inefficiency of above-knee amputee ambulation. Am J Phys Med Rehabil 1995; 74:332-8. [PMID: 7576408] [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: 01/26/2023]
Abstract
Above-knee (AK) amputation substantially increases the metabolic cost of ambulation. Although the biomechanical mechanisms contributing to the increase have not been well studied, it has been assumed that altered center-of-mass (COM) kinematics and increased mechanical work account for the adverse effect on oxygen consumption. To understand better the relationship between mechanical work and the metabolic cost, 8 normal subjects and 8 traumatic AK amputees were studied during overground ambulation. Using segmental energy and inverse dynamics analyses, trunk COM excursion, the mechanical work associated with movement of the COM, and the work done by the major lower limb sagittal plane muscle groups were determined. Oxygen consumption was measured using the Douglas bag technique. The metabolic cost was 27% higher in amputees compared with normal subjects (P > 0.01), but no significant differences were noted in the excursion of or the work done on the trunk COM. The muscle work needed to complete a stride was significantly greater in normal subjects compared with amputees. These results indicate that the role of abnormal kinematics and their effect on the mechanical work of walking are complex and incompletely understood, but may be overemphasized as a cause of the increased metabolic cost. Alternative mechanisms for the metabolic inefficiency must be considered.
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Affiliation(s)
- A Gitter
- Department of Physical Medicine & Rehabilitation, Seattle Veterans Affairs Medical Center, WA 98108, USA
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