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Ploch-Jankowska A. Spectroscopic Analysis of the Effect of Ibuprofen Degradation Products on the Interaction between Ibuprofen and Human Serum Albumin. Curr Protein Pept Sci 2024; 25:492-506. [PMID: 38351694 DOI: 10.2174/0113892037284277240126094716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) are one of the most commonly used groups of medicinal compounds in the world. The wide access to NSAIDs and the various ways of storing them due to their easy accessibility often entail the problem with the stability and durability resulting from the exposure of drugs to external factors. The aim of the research was to evaluate in vitro the mechanism of competition between ibuprofen (IBU) and its degradation products, i.e., 4'-isobutylacetophenone (IBAP) and (2RS)-2-(4- formylphenyl)propionic acid (FPPA) during transport in a complex with fatted (HSA) and defatted (dHSA) human serum albumin. METHODS The research was carried out using spectroscopic techniques, such as spectrophotometry, infrared spectroscopy and nuclear magnetic resonance spectroscopy. RESULTS The comprehensive application of spectroscopic techniques allowed, among others, for the determination of the binding constant, the number of classes of binding sites and the cooperativeness constant of the analyzed systems IBU-(d)HSA, IBU-(d)HSA-FPPA, IBU-(d)HSA-IBAP; the determination of the effect of ibuprofen and its degradation products on the secondary structure of albumin; identification and assessment of interactions between ligand and albumin; assessment of the impact of the presence of fatty acids in the structure of albumin and the measurement temperature on the binding of IBU, IBAP and FPPA to (d)HSA. CONCLUSION The conducted research allowed us to conclude that the presence of ibuprofen degradation products and the increase in their concentration significantly affect the formation of the IBU-albumin complex and thus, the value of the association constant of the drug, changing the concentration of its free fraction in the blood plasma. It was also found that the presence of an ibuprofen degradation product in a complex with albumin affects its secondary structure.
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Affiliation(s)
- Anna Ploch-Jankowska
- Department of Pharmacy and Ecological Chemistry, Institute of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland
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Ambur Sankaranarayanan R, Florea A, Allekotte S, Vogg ATJ, Maurer J, Schäfer L, Bolm C, Terhorst S, Classen A, Bauwens M, Morgenroth A, Mottaghy FM. PARP targeted Auger emitter therapy with [ 125I]PARPi-01 for triple-negative breast cancer. EJNMMI Res 2022; 12:60. [PMID: 36104637 PMCID: PMC9474773 DOI: 10.1186/s13550-022-00932-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 08/27/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Triple-negative breast cancer (TNBC) lacks biomarkers for targeted therapy. Auger emitters display the best therapeutic effect, if delivered directly into the nucleus proximal to DNA. The nuclear protein Poly (ADP-ribose)-Polymerase 1 (PARP1) is a suitable target against which few inhibitors (PARPi) are clinically approved for treatment of breast cancer with germline BRCA mutation (BRCAmut). In this study, a theranostic approach was investigated in a TNBC xenografted mouse model by radiolabelling a close derivative of a PARPi Olaparib (termed PARPi-01) with the Auger emitters 123/125I. METHODS TNBC cell line MDA-MB-231 was subcutaneously implanted in female NOD/SCID mice. At a tumour size of ~ 500mm3, [123I]PARPi-01 was administered intravenously, and SPECT/CT images were obtained at 4 h or 24 h post injection (p.i). A therapy study was performed with [125I]PARPi-01 in 4 doses (10 MBq/dose, 10 days apart). Tumour growth was monitored by CT scans longitudinally once per week. Upon reaching study endpoint, tissues were harvested and stained with TUNEL assay for detection of apoptosis induction. RESULTS SPECT/CT images showed rapid hepatobiliary tracer clearance at 4 h post injection (p.i.). Retention in thyroid at 24 h p.i. suggested tracer deiodination in vivo. The tumour and liver uptake were 0.2%ID/g and 2.5%ID/g, respectively. The tumour: blood ratio was 1.3. Endogenous therapy induced a significant delay in tumour growth (doubling time increased from 8.3 to 14.2 days), but no significant survival advantage. Significantly higher apoptosis ratio was observed in [125I]PARPi-01 treated tumour tissues. No radiotoxicity was detected in the liver and thyroid. CONCLUSION Considering the radio-cytotoxic effect in the tumour tissue and a delay on tumour doubling time, [125I]PARPi-01 presents a potential radiotherapeutics for treatment of TNBC. Improvements to overcome the suboptimal pharmacokinetics are necessary for its potential clinical application.
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Affiliation(s)
- Ramya Ambur Sankaranarayanan
- grid.1957.a0000 0001 0728 696XDepartment of Nuclear Medicine, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany
| | - Alexandru Florea
- grid.1957.a0000 0001 0728 696XDepartment of Nuclear Medicine, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany ,grid.412966.e0000 0004 0480 1382Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre (MUMC+), 6229HX Maastricht, The Netherlands ,grid.5012.60000 0001 0481 6099School for Cardiovascular Diseases (CARIM), Maastricht University, 6229HX Maastricht, The Netherlands
| | - Susanne Allekotte
- grid.1957.a0000 0001 0728 696XDepartment of Nuclear Medicine, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany
| | - Andreas T. J. Vogg
- grid.1957.a0000 0001 0728 696XDepartment of Nuclear Medicine, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany
| | - Jochen Maurer
- grid.1957.a0000 0001 0728 696XClinic for Gynaecology and Obstetrics, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany
| | - Laura Schäfer
- grid.1957.a0000 0001 0728 696XDepartment of Nuclear Medicine, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany
| | - Carsten Bolm
- grid.1957.a0000 0001 0728 696XInstitute of Organic Chemistry, RWTH Aachen University, 52074 Aachen, Germany
| | - Steven Terhorst
- grid.1957.a0000 0001 0728 696XInstitute of Organic Chemistry, RWTH Aachen University, 52074 Aachen, Germany
| | - Arno Classen
- grid.1957.a0000 0001 0728 696XInstitute of Organic Chemistry, RWTH Aachen University, 52074 Aachen, Germany
| | - Matthias Bauwens
- grid.1957.a0000 0001 0728 696XDepartment of Nuclear Medicine, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany ,grid.412966.e0000 0004 0480 1382Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre (MUMC+), 6229HX Maastricht, The Netherlands ,grid.5012.60000 0001 0481 6099Research School NUTRIM, Maastricht University, Universiteitssingel 50, 6229ER Maastricht, The Netherlands
| | - Agnieszka Morgenroth
- grid.1957.a0000 0001 0728 696XDepartment of Nuclear Medicine, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany
| | - Felix M. Mottaghy
- grid.1957.a0000 0001 0728 696XDepartment of Nuclear Medicine, University Hospital Aachen, RWTH Aachen University, 52074 Aachen, Germany ,grid.412966.e0000 0004 0480 1382Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre (MUMC+), 6229HX Maastricht, The Netherlands ,grid.5012.60000 0001 0481 6099School for Cardiovascular Diseases (CARIM), Maastricht University, 6229HX Maastricht, The Netherlands
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