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Szaryńska M, Olejniczak-Kęder A, Podpłońska K, Prahl A, Iłowska E. Bradykinin and Neurotensin Analogues as Potential Compounds in Colon Cancer Therapy. Int J Mol Sci 2023; 24:ijms24119644. [PMID: 37298595 DOI: 10.3390/ijms24119644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most lethal malignancies worldwide, so the attempts to find novel therapeutic approaches are necessary. The aim of our study was to analyze how chemical modifications influence physical, chemical, and biological properties of the two peptides, namely, bradykinin (BK) and neurotensin (NT). For this purpose, we used fourteen modified peptides, and their anti-cancers features were analyzed on the HCT116 CRC cell line. Our results confirmed that the spherical mode of a CRC cell line culture better reflects the natural tumour microenvironment. We observed that the size of the colonospheres was markedly reduced following treatment with some BK and NT analogues. The proportion of CD133+ cancer stem cells (CSCs) in colonospheres decreased following incubation with the aforementioned peptides. In our research, we found two groups of these peptides. The first group influenced all the analyzed cellular features, while the second seemed to include the most promising peptides that lowered the count of CD133+ CSCs with parallel substantial reduction in CRC cells viability. These analogues need further analysis to uncover their overall anti-cancer potential.
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Affiliation(s)
- Magdalena Szaryńska
- Department of Histology, Faculty of Medicine, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Agata Olejniczak-Kęder
- Department of Histology, Faculty of Medicine, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Kamila Podpłońska
- Department of Histology, Faculty of Medicine, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Adam Prahl
- Department of Organic Chemistry, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Emilia Iłowska
- Department of Organic Chemistry, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
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Skołuba D, Sobolewski D, Prahl A, Proniewicz E. Interaction of Bradykinin and B 2Bradykinin Receptor Antagonists with Colloidal Au Surface Explored by Surface-Enhanced Raman Scattering. JOURNAL OF SPECTROSCOPY 2014; 2014:1-8. [DOI: 10.1155/2014/619373] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2024]
Abstract
Bradykinin (BK), an endogenous peptide hormone, which is involved in a number of physiological and pathophysiological processes, and the potent B2bradykinin receptor antagonists, [D-Arg0,Hyp3,Thi5,8,L-Pip7]BK, Aaa[D-Arg0,Hyp3,Thi5,8,L-Pip7]BK, [D-Arg0,Hyp3,Thi5,D-Phe7,L-Pip8]BK, and Aaa[D-Arg0,Hyp3,Thi5,D-Phe7,L-Pip8]BK, were deposited onto colloidal Au particles of 20 nm size. Interaction of these molecules with colloidal Au surface was explored by surface-enhanced Raman scattering (SERS). Briefly, it was shown that BK adsorbs on the Au surface mainly through the Phe5/Phe8residues. In case of the BK specifically modified analogues mainly the Pip and Thi rings are involved in the interaction process; however, Pip and Thi adopt slightly different orientation with respect to Au for each of the analogues. In addition, the lack of the Aaa vibrations, together with the enhancement of the Thi, Pip, or Phe modes, emphasizes the importance of theC-terminus in the interaction with the Au surface.
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Affiliation(s)
- Dominika Skołuba
- Faculty of Chemistry, Jagiellonian University, Ulica Ingardena 3, 30-060 Krakow, Poland
| | - Dariusz Sobolewski
- Department of Chemistry, University of Gdansk, Sobieskiego 18, 80-592 Gdansk, Poland
| | - Adam Prahl
- Department of Chemistry, University of Gdansk, Sobieskiego 18, 80-592 Gdansk, Poland
| | - Edyta Proniewicz
- Faculty of Foundry Engineering, AGH University of Science and Technology, ul. Reymonta 23, 30-059 Krakow, Poland
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Sobolewski D, Proniewicz E, Skołuba D, Prahl A, Ozaki Y, Kim Y, Proniewicz LM. Characterization of adsorption mode of new B 2 bradykinin receptor antagonists onto colloidal Ag substrate. JOURNAL OF RAMAN SPECTROSCOPY 2013; 44:212-218. [DOI: 10.1002/jrs.4193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2024]
Abstract
In this paper, the surface‐enhanced Raman scattering (SERS) spectra of the potent B2 bradykinin receptor antagonists, [D‐Arg0,Hyp3,Thi5,8,L‐Pip7]BK, Aaa[D‐Arg0,Hyp3,Thi5,8,L‐Pip7]BK, [D‐Arg0,Hyp3,Thi5,D‐Phe7,L‐Pip8]BK, and Aaa[D‐Arg0,Hyp3,Thi5,D‐Phe7,L‐Pip8]BK, were measured when immobilized onto a colloidal assembly of apparently randomly adhering Ag spheres with diameters of approximately 20 – 25 nm. The observed SERS bands corresponding to different vibrational modes of the molecule, attached to or near Ag, and the variations in these bands resulting from competitive interactions of the functional groups of the peptides with the SERS‐active Ag surfaces were analyzed in this study. Briefly, it was shown that Pip, in generally in vertical orientation, and Thi, in the edge‐on position, relative to the colloidal Ag surface interacted with this surface through their lone electron pairs on the nitrogen and sulfur atoms, respectively. The imide bond of the X‐Pro peptide linkage and the guanidine group of Arg were involved in the adsorption process. In addition, it was demonstrated that the specific differences in the amino acid sequences slightly influenced the mode of adsorption. For example, Aaa in Aaa[D‐Arg0,Hyp3,Thi5,8,L‐Pip7]BK and Aaa[D‐Arg0,Hyp3,Thi5,D‐Phe7,L‐Pip8]BK and D‐Phe (vertical with respect to the colloidal Ag surface) in [D‐Arg0,Hyp3,Thi5,D‐Phe7,L‐Pip8]BK, and Aaa[D‐Arg0,Hyp3,Thi5,D‐Phe7,L‐Pip8]BK assisted in the adsorption of these peptides onto the colloidal Ag particles. To discuss these spectral alterations due to the different surface adsorption mechanisms of these peptides, the spectral changes were analyzed according to the adsorption process and Fourier‐transform‐Raman spectra. Copyright © 2013 John Wiley & Sons, Ltd.
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Affiliation(s)
- Dariusz Sobolewski
- Department of Chemistry University of Gdansk ul. Sobieskiego 18/19 80‐952 Gdansk Poland
| | - Edyta Proniewicz
- Faculty of Chemistry Jagiellonian University ul. Ingardena 3 30‐060 Krakow Poland
| | - Dominika Skołuba
- Faculty of Chemistry Jagiellonian University ul. Ingardena 3 30‐060 Krakow Poland
| | - Adam Prahl
- Department of Chemistry University of Gdansk ul. Sobieskiego 18/19 80‐952 Gdansk Poland
| | - Yukihiro Ozaki
- Department of Chemistry, School of Science and Technology Kwansei‐Gakuin University 2‐1 Gakuen Sanda Hyogo 669‐1337 Japan
| | - Younkyoo Kim
- Department of Chemistry Hankuk University of Foreign Studies Yongin Kyunggi‐Do 449‐791 Korea
| | - Leonard M. Proniewicz
- Faculty of Chemistry Jagiellonian University ul. Ingardena 3 30‐060 Krakow Poland
- Department of Chemistry, School of Science and Technology Kwansei‐Gakuin University 2‐1 Gakuen Sanda Hyogo 669‐1337 Japan
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Proniewicz E, Skołuba D, Kudelski A, Sobolewski D, Prahl A, Kim Y, Proniewicz LM. B 2 bradykinin receptor antagonists: adsorption mechanism on electrochemically roughened Ag substrate. JOURNAL OF RAMAN SPECTROSCOPY 2013; 44:205-211. [DOI: 10.1002/jrs.4182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2024]
Abstract
In this paper, the surface‐enhanced Raman scattering (SERS) spectra of the potent B2 bradykinin receptor antagonists, [D‐Arg0,Hyp3,Thi5,8,L‐Pip7]BK, Aaa[D‐Arg0,Hyp3,Thi5,8,L‐Pip7]BK, [D‐Arg0,Hyp3,Thi5,D‐Phe7,L‐Pip8]BK, and Aaa[D‐Arg0,Hyp3,Thi5,D‐Phe7,L‐Pip8]BK, were measured when immobilized onto a highly specific electrochemically roughened SERS‐active Ag substrate characterized by the formation of a 50 – 150 nm Ag islands on its surface. The observed SERS bands corresponding to different vibrational modes of the molecule, attached to or near Ag, and the variations in these bands resulting from competitive interactions of the functional groups of the peptides with the SERS‐active Ag surfaces and reorientation occurring over time of adsorption were analyzed in this study. Copyright © 2012 John Wiley & Sons, Ltd.
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Affiliation(s)
- Edyta Proniewicz
- Faculty of Chemistry Jagiellonian University ul. Ingardena 3 30‐060 Krakow Poland
| | - Dominika Skołuba
- Faculty of Chemistry Jagiellonian University ul. Ingardena 3 30‐060 Krakow Poland
| | - Andrzej Kudelski
- Department of Chemistry University of Warsaw ul. L. Pasteura 1 02‐093 Warsaw Poland
| | - Dariusz Sobolewski
- Department of Chemistry University of Gdansk Sobieskiego 18 80‐952 Gdansk Poland
| | - Adam Prahl
- Department of Chemistry University of Gdansk Sobieskiego 18 80‐952 Gdansk Poland
| | - Younkyoo Kim
- Department of Chemistry Hankuk University of Foreign Studies Yongin Kyunggi‐Do 449‐791 Korea
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