1
|
Małecka M, Sobiesiak M, Chęcińska L, Kozakiewicz-Piekarz A, Napiórkowska-Mastalerz M, Ziomkowska B, Stepniak A, Kupcewicz B. Fluorescent properties in solid-state and solution of novel tricyclic derivatives of chloro/bromophenylchromanones and 2-methylpyrazoline. Spectrochim Acta A Mol Biomol Spectrosc 2024; 308:123715. [PMID: 38103355 DOI: 10.1016/j.saa.2023.123715] [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] [Received: 07/18/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/19/2023]
Abstract
In this work, we reported the synthesis and spectroscopic characterization of seven novel tricyclic compounds resulting from the reaction of 3-benzylidenechromanone with Cl or Br substituent in different positions and without halogen with methylhydrazine. The structural characterization of compounds was done through different techniques i.e., FTIR,1HNMR,a single and powder X-Ray diffraction. Moreover, fluorescence quantum yield and lifetime assessed their fluorescent properties in the solid state and various solvents. Derivatives with Cl or Br substituent in positions 2 and 4 are isostructural. 4-Cl, 4-Br and 3-Cl compounds exhibit fluorescence with moderate efficiency (quantum yield 0.11-0.26) in solid state due to specific arrangements, so-called π-stack brick stone with head-to-tail self-assembly. Other crystalline compounds (2-Cl, 2-Br and 3-Br) that exhibit negligible fluorescence quantum yield have crossed V-type arrangement. In the solution, the nonhalogenated compound shows the best fluorescence efficiency. In turn, the presence of halogen atoms results in fluorescence decreasing. TD-DFT study revealed that unsubstituted compound higher emissive in solution has a different electron density distribution at HOMO and LUMO levels than less emissive substituted compounds (A3 and A3).
Collapse
Affiliation(s)
- Magdalena Małecka
- University of Lodz, Faculty of Chemistry, Department of Physical Chemistry, Pomorska 163/165, 90-236 Lodz, Poland.
| | - Marta Sobiesiak
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Nicolaus Copernicus University, Jurasza 2, 85-089 Bydgoszcz, Poland.
| | - Lilianna Chęcińska
- University of Lodz, Faculty of Chemistry, Department of Physical Chemistry, Pomorska 163/165, 90-236 Lodz, Poland
| | - Anna Kozakiewicz-Piekarz
- Department of Biomedical and Polymer Chemistry, Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Torun, Poland
| | - Marta Napiórkowska-Mastalerz
- Department of Biophysics, Faculty of Pharmacy, Nicolaus Copernicus University, Jagiellonska 15, 85-089 Bydgoszcz, Poland
| | - Blanka Ziomkowska
- Department of Biophysics, Faculty of Pharmacy, Nicolaus Copernicus University, Jagiellonska 15, 85-089 Bydgoszcz, Poland
| | - Artur Stepniak
- University of Lodz, Faculty of Chemistry, Department of Physical Chemistry, Pomorska 163/165, 90-236 Lodz, Poland
| | - Bogumiła Kupcewicz
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Nicolaus Copernicus University, Jurasza 2, 85-089 Bydgoszcz, Poland
| |
Collapse
|
2
|
Wybranowski T, Ziomkowska B, Cyrankiewicz M, Pyskir J, Bosek M, Napiórkowska M, Pilaczyńska-Cemel M, Przybylski G, Kruszewski S. Time-Resolved Fluorescence Spectroscopy of Blood, Plasma and Albumin as a Potential Diagnostic Tool for Acute Inflammation in COVID-19 Pneumonia Patients. Int J Mol Sci 2023; 24:14703. [PMID: 37834149 PMCID: PMC10572581 DOI: 10.3390/ijms241914703] [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: 07/21/2023] [Revised: 09/11/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Fluorescence lifetime measurements of blood or plasma offer valuable insights into the microenvironment and molecular interactions of fluorophores, particularly concerning albumin. Neutrophil- and hypoxia-induced oxidative stress in COVID-19 pneumonia patients leads to hyperinflammation, various oxidative modifications of blood proteins, and potential alterations in the fluorescence lifetime of tryptophan-containing proteins, especially albumin. The objective of this study was to investigate the efficacy of time-resolved fluorescence spectroscopy of blood and plasma as a prompt diagnostic tool for the early diagnosis and severity assessment of COVID-19-associated pneumonia. This study examined a cohort of sixty COVID-19 patients with respiratory symptoms. To investigate whether oxidative stress is the underlying cause of the change in fluorescence lifetime, human serum albumin was treated with chloramine T. The time-resolved spectrometer Life Spec II (Edinburgh Instruments Ltd., Livingston, UK), equipped with a sub-nanosecond pulsed 280 nm diode, was used to measure the fluorescence lifetime of blood and plasma. The findings revealed a significant reduction in the fluorescence lifetime of blood (diluted 200 times) and plasma (diluted 20 times) at 360 nm in COVID-19 pneumonia patients compared with their respective values recorded six months post-infection and those of healthy individuals. Significant negative correlations were observed between the mean fluorescence lifetime of blood and plasma at 360 nm and several severity biomarkers and advanced oxidation protein products, while a positive correlation was found with albumin and the albumin-globulin ratio. The time-resolved fluorescence spectroscopy method demonstrates the potential to be used as a preliminary screening technique for identifying patients who are at risk of developing severe complications. Furthermore, the small amount of blood required for the measurements has the potential to enable a rapid fingerstick blood test.
Collapse
Affiliation(s)
- Tomasz Wybranowski
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (T.W.); (B.Z.); (M.B.); (M.N.); (S.K.)
| | - Blanka Ziomkowska
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (T.W.); (B.Z.); (M.B.); (M.N.); (S.K.)
| | - Michał Cyrankiewicz
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (T.W.); (B.Z.); (M.B.); (M.N.); (S.K.)
| | - Jerzy Pyskir
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (T.W.); (B.Z.); (M.B.); (M.N.); (S.K.)
| | - Maciej Bosek
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (T.W.); (B.Z.); (M.B.); (M.N.); (S.K.)
| | - Marta Napiórkowska
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (T.W.); (B.Z.); (M.B.); (M.N.); (S.K.)
| | - Marta Pilaczyńska-Cemel
- Department of Lung Diseases, Neoplasms and Tuberculosis, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (M.P.-C.); (G.P.)
| | - Grzegorz Przybylski
- Department of Lung Diseases, Neoplasms and Tuberculosis, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (M.P.-C.); (G.P.)
| | - Stefan Kruszewski
- Department of Biophysics, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland; (T.W.); (B.Z.); (M.B.); (M.N.); (S.K.)
| |
Collapse
|
3
|
Bosek M, Ziomkowska B, Pyskir J, Wybranowski T, Pyskir M, Cyrankiewicz M, Napiórkowska M, Durmowicz M, Kruszewski S. Relationship between red blood cell aggregation and dextran molecular mass. Sci Rep 2022; 12:19751. [PMID: 36396711 PMCID: PMC9670059 DOI: 10.1038/s41598-022-24166-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 11/10/2022] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was to investigate the aggregation of red blood cells (RBCs) suspended in dextran solution at various levels of molecular mass. Dextran solutions at molecular mass 40, 70, 100 and 500 kDa at concentration from 2 to 5 g/dL were used to suspend the RBCs. The radius and velocity of sedimenting RBC aggregates were investigated using image analysis. The radius and sedimentation velocity of aggregates increased initially, then decreased after achieving maxima. The maximal velocity of RBC aggregates showed a bell-shaped dependence on dextran molecular mass and concentration, whereas maximal radius showed monotonic increase with both factors. Difference between aggregate and solution density was estimated using aggregate radius and sedimentation velocity and dextran solution viscosity, and was consistent across most molecular mass and concentration levels. This allowed to calculate the porosity of aggregates and to show that it monotonically decreased with the increase in the solution density, caused by the increase in the dextran concentration. The results provide insight into the RBC aggregation process in solutions of proteins of different size, reflecting various pathological conditions. The currently reported data can be potentially applied to specific pathophysiological conditions giving an interpretation that is not yet fully discussed in the literature.
Collapse
Affiliation(s)
- Maciej Bosek
- grid.411797.d0000 0001 0595 5584Biophysics Department, Collegium Medicum of Nicolaus Copernicus University, Jagiellońska St. 13, 85-067 Bydgoszcz, Poland
| | - Blanka Ziomkowska
- grid.411797.d0000 0001 0595 5584Biophysics Department, Collegium Medicum of Nicolaus Copernicus University, Jagiellońska St. 13, 85-067 Bydgoszcz, Poland
| | - Jerzy Pyskir
- grid.411797.d0000 0001 0595 5584Biophysics Department, Collegium Medicum of Nicolaus Copernicus University, Jagiellońska St. 13, 85-067 Bydgoszcz, Poland
| | - Tomasz Wybranowski
- grid.411797.d0000 0001 0595 5584Biophysics Department, Collegium Medicum of Nicolaus Copernicus University, Jagiellońska St. 13, 85-067 Bydgoszcz, Poland
| | - Małgorzata Pyskir
- grid.5374.50000 0001 0943 6490Department of Rehabilitation, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland
| | - Michał Cyrankiewicz
- grid.411797.d0000 0001 0595 5584Biophysics Department, Collegium Medicum of Nicolaus Copernicus University, Jagiellońska St. 13, 85-067 Bydgoszcz, Poland
| | - Marta Napiórkowska
- grid.411797.d0000 0001 0595 5584Biophysics Department, Collegium Medicum of Nicolaus Copernicus University, Jagiellońska St. 13, 85-067 Bydgoszcz, Poland
| | - Maciej Durmowicz
- grid.5374.50000 0001 0943 6490Department of Physiotherapy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland
| | - Stefan Kruszewski
- grid.411797.d0000 0001 0595 5584Biophysics Department, Collegium Medicum of Nicolaus Copernicus University, Jagiellońska St. 13, 85-067 Bydgoszcz, Poland
| |
Collapse
|
4
|
Wybranowski T, Pyskir J, Bosek M, Napiórkowska M, Cyrankiewicz M, Ziomkowska B, Pilaczyńska-Cemel M, Pyskir M, Rogańska M, Kruszewski S, Przybylski G. The Mortality Risk and Pulmonary Fibrosis Investigated by Time-Resolved Fluorescence Spectroscopy from Plasma in COVID-19 Patients. J Clin Med 2022; 11:jcm11175081. [PMID: 36079011 PMCID: PMC9457233 DOI: 10.3390/jcm11175081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 07/12/2022] [Revised: 08/10/2022] [Accepted: 08/26/2022] [Indexed: 01/18/2023] Open
Abstract
A method of rapidly pointing out the risk of developing persistent pulmonary fibrosis from a sample of blood is extraordinarily needed for diagnosis, prediction of death, and post-infection prognosis assessment. Collagen scar formation has been found to play an important role in the lung remodeling following SARS-CoV-2 infection. For this reason, the concentration of collagen degradation products in plasma may reflect the process of lung remodeling and determine the extent of fibrosis. According to our previously published results of an in vitro study, an increase in the concentration of type III collagen degradation products in plasma resulted in a decrease in the fluorescence lifetime of plasma at a wavelength of 450 nm. The aim of this study was to use time-resolved fluorescence spectroscopy to assess pulmonary fibrosis, and to find out if the lifetime of plasma fluorescence is shortened in patients with COVID-19. The presented study is thus far the only one to explore the fluorescence lifetime of plasma in patients with COVID-19 and pulmonary fibrosis. The time-resolved spectrometer Life Spec II with the sub-nanosecond pulsed 360 nm EPLED® diode was used in order to measure the fluorescence lifetime of plasma. The survival analysis showed that COVID-19 mortality was associated with a decreased mean fluorescence lifetime of plasma. The AUC of mean fluorescence lifetime in predicting death was 0.853 (95% CI 0.735−0.972, p < 0.001) with a cut-off value of 7 ns, and with 62% sensitivity and 100% specificity. We observed a significant decrease in the mean fluorescence lifetime in COVID-19 non-survivors (p < 0.001), in bacterial pneumonia patients without COVID-19 (p < 0.001), and in patients diagnosed with idiopathic pulmonary fibrosis (p < 0.001), relative to healthy subjects. Furthermore, these results suggest that the development of pulmonary fibrosis may be a real and serious problem in former COVID-19 patients in the future. A reduction in the mean fluorescence lifetime of plasma was observed in many patients 6 months after discharge. On the basis of these data, it can be concluded that a decrease in the mean fluorescence lifetime of plasma at 450 nm may be a risk factor for mortality, and probably also for pulmonary fibrosis in hospitalized COVID-19 patients.
Collapse
Affiliation(s)
- Tomasz Wybranowski
- Biophysics Department, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Jerzy Pyskir
- Biophysics Department, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Maciej Bosek
- Biophysics Department, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Marta Napiórkowska
- Biophysics Department, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Michał Cyrankiewicz
- Biophysics Department, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Blanka Ziomkowska
- Biophysics Department, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Marta Pilaczyńska-Cemel
- Department of Lung Diseases, Neoplasms and Tuberculosis, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Małgorzata Pyskir
- Department of Rehabilitation, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Milena Rogańska
- Department of Lung Diseases, Neoplasms and Tuberculosis, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Stefan Kruszewski
- Biophysics Department, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| | - Grzegorz Przybylski
- Department of Lung Diseases, Neoplasms and Tuberculosis, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-067 Bydgoszcz, Poland
| |
Collapse
|
5
|
Pluskota R, Jaroch K, Kośliński P, Ziomkowska B, Lewińska A, Kruszewski S, Bojko B, Koba M. Selected Drug-Likeness Properties of 2-Arylidene-indan-1,3-dione Derivatives-Chemical Compounds with Potential Anti-Cancer Activity. Molecules 2021; 26:5256. [PMID: 34500689 PMCID: PMC8434099 DOI: 10.3390/molecules26175256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/22/2021] [Accepted: 08/25/2021] [Indexed: 11/17/2022] Open
Abstract
2-Arylidene-indan-1,3-done derivatives have very different properties, thanks to which they find various applications in science, medicine, and industry. Selected derivatives show antiviral, antibacterial, and anti-inflammatory activity. This paper presents a procedure for the synthesis of a series of indan-1,3-dione derivatives that present antiproliferative activity. The aim of the work was to develop a method of simple synthesis and purification, evaluate the fulfillment of the Lipiński's and Veber's rule, and determine the potential scope of application of the obtained series of compounds. The structure of the synthesized compounds was confirmed, and their lipophilicity was determined using experimental and computational methods. Their antiproliferative activity against selected cell lines was tested in accordance with the MTT protocol; the ability to bind to albumin was tested, and the parameters related to the toxicity of substances in silico were determined. The selected compounds which showed antiproliferative activity were strongly bound to albumin and, in most cases, met the Lipiński's and Veber's rule. Thus, the obtained results suggest that 2-arylidene-indan-1,3-done derivatives appear to be good candidates for drugs with a potential leading structure for further development.
Collapse
Affiliation(s)
- Robert Pluskota
- Department of Toxicology and Bromatology, Collegium Medicum im. L. Rydygier in Bydgoszcz, Nicolaus Copernicus University, 87-100 Toruń, Poland; (R.P.); (P.K.)
| | - Karol Jaroch
- Department of Pharmacodynamics and Molecular Pharmacology, Collegium Medicum im. L. Rydygier in Bydgoszcz, Nicolaus Copernicus University, 87-100 Toruń, Poland; (K.J.); (B.B.)
| | - Piotr Kośliński
- Department of Toxicology and Bromatology, Collegium Medicum im. L. Rydygier in Bydgoszcz, Nicolaus Copernicus University, 87-100 Toruń, Poland; (R.P.); (P.K.)
| | - Blanka Ziomkowska
- Department of Biophysics, Collegium Medicum im. L. Rydygier in Bydgoszcz, Nicolaus Copernicus University, 87-100 Toruń, Poland; (B.Z.); (S.K.)
| | - Agnieszka Lewińska
- Faculty of Chemistry, University of Wroclaw, Joliot-Curie 14, 50-383 Wroclaw, Poland;
| | - Stefan Kruszewski
- Department of Biophysics, Collegium Medicum im. L. Rydygier in Bydgoszcz, Nicolaus Copernicus University, 87-100 Toruń, Poland; (B.Z.); (S.K.)
| | - Barbara Bojko
- Department of Pharmacodynamics and Molecular Pharmacology, Collegium Medicum im. L. Rydygier in Bydgoszcz, Nicolaus Copernicus University, 87-100 Toruń, Poland; (K.J.); (B.B.)
| | - Marcin Koba
- Department of Toxicology and Bromatology, Collegium Medicum im. L. Rydygier in Bydgoszcz, Nicolaus Copernicus University, 87-100 Toruń, Poland; (R.P.); (P.K.)
| |
Collapse
|
6
|
Wybranowski T, Ziomkowska B, Cyrankiewicz M, Kruszewski S. The impact of oxidative stress on binding of drugs with plasma proteins studied by fluorescence anisotropy methods. Gen Physiol Biophys 2018; 37:647-655. [DOI: 10.4149/gpb_2018017] [Citation(s) in RCA: 6] [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] [Received: 12/12/2017] [Accepted: 05/22/2018] [Indexed: 11/08/2022]
|
7
|
Ziomkowska B, Wybranowski T, Cyrankiewicz M, Kruszewski S. Properties of Ultraviolet Exposed Camptothecin Studied by Using Optical Spectroscopy Methods. Comb Chem High Throughput Screen 2016; 19:319-24. [PMID: 26953237 DOI: 10.2174/1386207319666160308130643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 02/14/2016] [Accepted: 03/05/2016] [Indexed: 11/22/2022]
Abstract
Camptothecin (CPT) and its analogs as inhibitors of topoisomerase I are anticancer compounds. Their antitumor potency is seriously limited due to hydrolysis of lactone form of camptothecins in solutions at pH>5.5, which leads to the formation of inactive carboxylate form with open lactone ring. Furthermore, the clinical application of CPT is also restricted by strong affinity of its carboxylate form to human serum albumin which destabilizes the active lactone form. By UV irradiation of the CPT carboxylate authors of this paper received camptothecin compound which has biophysical properties similar to the lactone form. The specific objective of the project is to determine the properties using the methods of absorption and steady-state fluorescence spectra analysis, fluorescence lifetime measurements as well as steady-state fluorescence anisotropy. The results suggest that the UV exposed camptothecin carboxylate changes the chemical structure. The high-throughput assays based on the steady state fluorescence anisotropy measurements proved that the form obtained as a result of UV irradiation of CPT carboxylate exhibits weaker affinity to albumin than CPT carboxylate however stronger than CPT lactone. This property is very desirable from the point of view of clinical applications.
Collapse
Affiliation(s)
- Blanka Ziomkowska
- Medical Physics Division, Biophysics Department, Faculty of Pharmacy, Collegium Medicum of Nicolaus Copernicus University, Jagiellonska 13, PL-85-067 Bydgoszcz, Poland.
| | | | | | | |
Collapse
|
8
|
Wybranowski T, Ziomkowska B, Cyrankiewicz M, Kruszewski S. INTERACTION OF CAMPTOTHECIN WITH HUMAN SERUM ALBUMIN DETERMINED BY FLUORESCENCE ANISOTROPY SPECTROSCOPY. Acta Pol Pharm 2016; 73:29-34. [PMID: 27008798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The study can be useful for understanding the interaction of camptothecin with human serum albu- min. There are two forms of camptothecin (the carboxylate form (CPT-C) and the lactone form (CPT-L)) but only the lactone one is pharmacologically active. It was reported earlier that in the presence of HSA, the active lactone form of camptothecin changes to inactive carboxylate form and it reduces the antitumor activities of camptothecin. However, those studies were performed at physiological pH (7.4) and with non-oxidized and non-glycosylated albumin. The aim of this study was to investigate the effect of oxidative stress, glycosylation, pH changes and competitor drugs on inactivation of lactone form of camptothecin in albumin solution using measurements of fluorescence anisotropy spectroscopy. It was tried to prove that in vivo camptothecin may be present in higher amount in lactone form than previously thought. Due to a reduction of pH value, a decreased rate of hydrolysis from CPT-L to CPT-C was observed. It was found in vitro a significant reduction in bound fraction of CPT-C to HSA oxidized by chloramine T or glycosylated by glucose. Moreover, as a result of block- ing binding of CPT-C to HSA by competitive compound (flurbiprofen), a decrease in the fluorescence anisotropy of the HSA-CPT complex was found. This study opens the way to review an application of CPT and its derivatives in therapy.
Collapse
|
9
|
Sikora J, Cyrankiewicz M, Wybranowski T, Ziomkowska B, Ośmiałowski B, Obońska E, Augustyńska B, Kruszewski S, Kubica J. Use of time-resolved fluorescence spectroscopy to evaluate diagnostic value of collagen degradation products. J Biomed Opt 2015; 20:051039. [PMID: 25764396 DOI: 10.1117/1.jbo.20.5.051039] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 02/23/2015] [Indexed: 06/04/2023]
Abstract
The concentration of collagen degradation products (CDPs) may reflect the process of left ventricular remodeling (LVR). The aim of this study was to evaluate the potential diagnostic usefulness of time-resolved fluorescence spectroscopy (TRFS) in assessment of CDPs. The preliminary experiment was designed to establish if CDPs’ characteristics might be visible by mean fluorescence lifetime (FLT) in determined conditions. The in vitro model of CDPs was prepared by conducting the hydrolysis of type III collagen. The FLT of samples was measured by the time-resolved spectrometer Life Spec II with the subnanosecond pulsed 360-nm EPLED diode. The FLTs were obtained by deconvolution analysis of the data using a multiexponential model of fluorescence decay. In order to determine the limit of traceability of CDPs, a comparison of different collagen/plasma ratio in samples was performed. The results of our study showed that the increase of added plasma to hydrolyzed collagen extended the mean FLT. Thus, the diagnosis of LVR based on measurements using TRFS is possible. However, it is important to point out the experiment was preliminary and further investigation in this field of research is crucial.
Collapse
Affiliation(s)
- Joanna Sikora
- Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Faculty of Medicine, Department of Cardiology and Internal Medicine, Sklodowskiej-Curie Street No. 9, 85-094 Bydgoszcz, PolandbNicolaus Copernicus University, Collegium Medicum in Bydgoszcz
| | - Michał Cyrankiewicz
- Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Faculty of Pharmacy, Department of Biophysics, Jagiellonska Street No. 13, 85-094 Bydgoszcz, Poland
| | - Tomasz Wybranowski
- Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Faculty of Pharmacy, Department of Biophysics, Jagiellonska Street No. 13, 85-094 Bydgoszcz, Poland
| | - Blanka Ziomkowska
- Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Faculty of Pharmacy, Department of Biophysics, Jagiellonska Street No. 13, 85-094 Bydgoszcz, Poland
| | - Borys Ośmiałowski
- University of Technology and Life Sciences, Faculty of Chemical Technology and Engineering, Department of Organic Chemistry, Seminaryjna Street No. 3, 85-326 Bydgoszcz, Poland
| | - Ewa Obońska
- Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Faculty of Medicine, Department of Cardiology and Internal Medicine, Sklodowskiej-Curie Street No. 9, 85-094 Bydgoszcz, Poland
| | - Beata Augustyńska
- Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Faculty of Medicine, Department of Biochemistry, Karlowicza Street No. 24, 85-094 Bydgoszcz, Poland
| | - Stefan Kruszewski
- Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Faculty of Pharmacy, Department of Biophysics, Jagiellonska Street No. 13, 85-094 Bydgoszcz, Poland
| | - Jacek Kubica
- Nicolaus Copernicus University, Collegium Medicum in Bydgoszcz, Faculty of Medicine, Department of Cardiology and Internal Medicine, Sklodowskiej-Curie Street No. 9, 85-094 Bydgoszcz, Poland
| |
Collapse
|
10
|
Marszałł MP, Buciński A, Kruszewski S, Ziomkowska B. A new approach to determine camptothecin and its analogues affinity to human serum albumin. J Pharm Sci 2010; 100:1142-6. [PMID: 20740669 DOI: 10.1002/jps.22318] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2010] [Revised: 06/28/2010] [Accepted: 07/06/2010] [Indexed: 11/07/2022]
Abstract
A novel and fast method for the determination of the binding kinetic data of ligand to protein has been developed. A new tool including human serum albumin-coated magnetic beads (HSA-MB) was used to determine the affinity of camptothecin (CPT) and its analogues to HSA. From the biological activity point of view, these compounds have potential anticancer activity. However, the numerous studies indicate that some of these analogues have a strong affinity to plasma proteins stopping their effective therapy. Thus, the problem of plasma protein binding behavior of CPT's analogues was the subject of this study.
Collapse
Affiliation(s)
- Michał Piotr Marszałł
- Department of Medicinal Chemistry, Faculty of Pharmacy, Collegium Medicum, Nicolaus Copernicus University, M. Skłodowskiej-Curie 9, 85-094 Bydgoszcz, Poland.
| | | | | | | |
Collapse
|
11
|
Kruszewski S, Ziomkowska B, Cyrankiewicz M, Wybranowski T. The comparison of biophysical properties of DB-67 and its ester DB-67-4ABTFA determined by fluorescence spectroscopy methods. Biosystems 2008; 94:270-5. [PMID: 18718502 DOI: 10.1016/j.biosystems.2008.05.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2008] [Accepted: 05/27/2008] [Indexed: 11/28/2022]
Abstract
Fluorescence spectroscopy methods are applied to the study of camptothecin analogue DB-67 and its ester DB-67-4ABTFA (trifluoroacetic acid salt of 20(S)-aminobutyrate substituted DB-67). Camptothecin and many of its analogues exhibit anticancer properties. They are fluorescent compounds, so using the method of fluorescence anisotropy measurements and fluorescence spectra recording many biophysical properties can be determined including affinity to proteins and membranes. One can also observe the process of conversion of the ester into DB-67. Active lactone form of camptothecin in fluids at pH 7.4 hydrolyses and converts into inactive carboxylate. Process of camptothecin deactivation is accelerated in plasma and after about 2h the total conversion to carboxylate form occurs. It is caused by fast and irreversible binding of carboxylate form to the human serum albumin (HSA). Camptothecin carboxylate bound to HSA does not lactonise. On the other hand, camptothecin lactone binding to membranes is reversible, but as long as lactone form bound to membranes does not hydrolyse. Knowledge of binding properties to proteins and membranes permits to select among many camptothecin analogues the ones exhibiting desirable behavior in physiological conditions: high affinity of lactone form to membranes and low affinity of carboxylate form to albumin. The studied DB-67 and DB-67-4ABTFA fulfill these requirements.
Collapse
Affiliation(s)
- Stefan Kruszewski
- Biophysics Department, Medical Physics Division, Faculty of Pharmacy, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | | | | | | |
Collapse
|
12
|
Ziomkowska B, Cyrankiewicz M, Kruszewski S. Determination of hydroxycamptothecin affinities to albumin and membranes by steady-state fluorescence anisotropy measurements. Comb Chem High Throughput Screen 2008; 10:486-92. [PMID: 17896945 DOI: 10.2174/138620707781996420] [Citation(s) in RCA: 9] [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] [Indexed: 11/22/2022]
Abstract
Camptothecin (CPT) and its hydroxycamptothecin analogs are fluorescent compounds exhibiting strong anticancer properties. They exist in two forms: active lactone and inactive carboxylate. The deactivation proceeds via hydrolysis in neutral and base solutions. A serious limitation to the clinical application of CPT is the strong affinity of its carboxylate form to human serum albumin (HSA) which destabilizes its active lactone form. However, binding to membranes in blood improves the stability of the lactone form of CPT and its analogs. A high-throughput screening assay based on the steady-state fluorescence anisotropy method was used to determine the protein- and membrane-binding properties of 10 hydroxycamptothecin (10-OH-CPT), 7-ethyl-10-hydroxycamptothecin (SN-38) and 7-tert-butyldimethylsil-10-hydroxycamptothecin (DB-67). The relative affinities of hydroxycamptothecins to HSA and model membranes in the form of DMPC liposomes were determined, and DB-67 exhibited the most desirable properties including the highest affinity to membranes in its lactone form and low affinity to HSA in its carboxylate form.
Collapse
Affiliation(s)
- Blanka Ziomkowska
- Medical Physics Division, Biophysics Department, Faculty of Pharmacy, Collegium Medicum, Nicolaus Copernicus University, Jagiellonska 13, PL-85-067 Bydgoszcz, Poland.
| | | | | |
Collapse
|
13
|
Ziomkowska B, Cyrankiewicz M, Kruszewski S. Hydroxycamptothecin Deactivation Rates and Binding to Model Membranes and HSA Determined by Fluorescence Spectra Analysis. Comb Chem High Throughput Screen 2007; 10:459-65. [PMID: 17896941 DOI: 10.2174/138620707781996394] [Citation(s) in RCA: 2] [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: 11/22/2022]
Abstract
Camptothecins (CPTs) are fluorescent compounds exhibiting anticancer activity. They can exist in two forms, a lactone and a carboxylate. In neutral and base solution, lactone forms hydrolyse and convert into carboxylates. Only the lactone forms of CPTs are biologically active. Because of strong affinity of the carboxylate form of the parent drug camptothecin to human serum albumin (HSA), this protein promotes the deactivation of this compound. On the other hand, the lactone forms of camptothecins do not hydrolyse and are stabilized when bound to membranes. The following three hydroxycamptothecins, 10 hydroxycamptothecin (10-OH-CPT), 7-ethyl-10-hydroxy-camptothecin (SN-38) and 7-tert-butyldimethylsil-10-hydroxycamptothecin (DB-67) were studied. Factor analysis of a set of fluorescence excitation spectra recorded during lactone hydrolysis facilitated the high-throughput determination of the deactivation rates of camptothecin and each hydroxycamptothecin in phosphate buffered saline. The fluorescence spectra of hydroxycamptothecins diluted in HSA solution or suspended in DMPC liposomes were recorded, and the association constants of these drugs to membranes and plasma proteins were calculated. Among the analysed agents, DB-67 exhibited the most desirable properties including low affinity of the carboxylate form for albumin and high affinity of its lactone form for model membranes.
Collapse
Affiliation(s)
- Blanka Ziomkowska
- Medical Physics Division, Biophysics Department, Faculty of Pharmacy, Collegium Medicum, Nicolaus Copernicus University, Jagiellonska 13, PL-85-067 Bydgoszcz, Poland.
| | | | | |
Collapse
|
14
|
Kruszewski S, Siuda R, Ziomkowska B, Cyrankiewicz M. PCA and FA analysis of steady-state fluorescence spectra of camptothecin. ACTA ACUST UNITED AC 2003. [DOI: 10.1117/12.501391] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
|