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Farkasinszky G, Péliné JS, Károlyi P, Rácz S, Dénes N, Papp T, Király J, Szabo Z, Kertész I, Mező G, Halmos G, Képes Z, Trencsényi G. In Vivo Imaging of Acute Hindlimb Ischaemia in Rat Model: A Pre-Clinical PET Study. Pharmaceutics 2024; 16:542. [PMID: 38675203 PMCID: PMC11054801 DOI: 10.3390/pharmaceutics16040542] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/02/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND To better understand ischaemia-related molecular alterations, temporal changes in angiogenic Aminopeptidase N (APN/CD13) expression and glucose metabolism were assessed with PET using a rat model of peripheral arterial disease (PAD). METHODS The mechanical occlusion of the base of the left hindlimb triggered using a tourniquet was applied to establish the ischaemia/reperfusion injury model in Fischer-344 rats. 2-[18F]FDG and [68Ga]Ga-NOTA-c(NGR) PET imaging performed 1, 3, 5, 7, and 10 days post-ischaemia induction was followed by Western blotting and immunohistochemical staining for APN/CD13 in ischaemic and control muscle tissue extracts. RESULTS Due to a cellular adaptation to hypoxia, a gradual increase in [68Ga]Ga-NOTA-c(NGR) and 2-[18F]FDG uptake was observed from post-intervention day 1 to 7 in the ischaemic hindlimbs, which was followed by a drop on day 10. Conforming pronounced angiogenic recovery, the NGR accretion of the ischaemic extremities differed significantly from the controls 5, 7, and 10 days after ischaemia induction (p ≤ 0.05), which correlated with the Western blot and immunohistochemical results. No remarkable radioactivity was depicted between the normally perfused hindlimbs of either the ischaemic or the control groups. CONCLUSIONS The PET-based longitudinal assessment of angiogenesis-associated APN/CD13 expression and glucose metabolism during ischaemia may continue to broaden our knowledge on the pathophysiology of PAD.
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Affiliation(s)
- Gergely Farkasinszky
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary (G.T.)
- Gyula Petrányi Doctoral School of Allergy and Clinical Immunology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Judit Szabó Péliné
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary (G.T.)
| | - Péter Károlyi
- Doctoral School of Neuroscience, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
- Division of Radiology and Imaging Science, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Szilvia Rácz
- Division of Radiology, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Noémi Dénes
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary (G.T.)
| | - Tamás Papp
- Doctoral School of Neuroscience, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
- Division of Radiology and Imaging Science, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - József Király
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, H-4032 Debrecen, Hungary
| | - Zsuzsanna Szabo
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, H-4032 Debrecen, Hungary
| | - István Kertész
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary (G.T.)
| | - Gábor Mező
- Institute of Chemistry, Faculty of Science, Eötvös Loránd University, H-1053 Budapest, Hungary
- MTA-ELTE, Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, H-1053 Budapest, Hungary
| | - Gabor Halmos
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, H-4032 Debrecen, Hungary
| | - Zita Képes
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary (G.T.)
- Gyula Petrányi Doctoral School of Allergy and Clinical Immunology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - György Trencsényi
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary (G.T.)
- Gyula Petrányi Doctoral School of Allergy and Clinical Immunology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
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Szász Z, Enyedi KN, Takács A, Fekete N, Mező G, Kőhidai L, Lajkó E. Characterisation of the cell and molecular biological effect of peptide-based daunorubicin conjugates developed for targeting pancreatic adenocarcinoma (PANC-1) cell line. Biomed Pharmacother 2024; 173:116293. [PMID: 38430628 DOI: 10.1016/j.biopha.2024.116293] [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: 12/02/2023] [Revised: 02/12/2024] [Accepted: 02/17/2024] [Indexed: 03/05/2024] Open
Abstract
Pancreatic adenocarcinoma is one of the tumours with the worst prognosis, with a 5-year survival rate of 5-10%. Our aim was to find and optimise peptide-based drug conjugates with daunorubicin (Dau) as the cytotoxic antitumour agent. When conjugated with targeting peptides, the side effect profile and pharmacokinetics of Dau can be improved. The targeting peptide sequences (e.g. GSSEQLYL) we studied were originally selected by phage display. By Ala-scan technique, we identified that position 6 in the parental sequence (Dau=Aoa-LRRY-GSSEQLYL-NH2, ConjA) could be modified without the loss of antitumour activity (Dau=Aoa-LRRY-GSSEQAYL-NH2, Conj03: 14. 9% viability). Our results showed that the incorporation of p-chloro-phenylalanine (Dau=Aoa-LRRY-GSSEQF(pCl)YL-NH2, Conj16) further increased the antitumour potency (10-5 M: 9.7% viability) on pancreatic adenocarcinoma cells (PANC-1). We found that conjugates containing modified GSSEQLYL sequences could be internalised to PANC-1 cells and induce cellular senescence in the short term and subsequent apoptotic cell death. Furthermore, the cardiotoxic effect of Dau was markedly reduced in the form of peptide conjugates. In conclusion, Conj16 had the most effective antitumor activity on PANC-1 cells, which makes this conjugate promising for developing new targeted therapies without cardiotoxic effects.
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Affiliation(s)
- Zsófia Szász
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest H-1089, Hungary
| | - Kata Nóra Enyedi
- Department of Organic Chemistry, Institute of Chemistry, Eötvös Loránd University, Budapest H-1117, Hungary; ELKH Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Budapest H-1117, Hungary
| | - Angéla Takács
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest H-1089, Hungary
| | - Nóra Fekete
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest H-1089, Hungary
| | - Gábor Mező
- Department of Organic Chemistry, Institute of Chemistry, Eötvös Loránd University, Budapest H-1117, Hungary; ELKH Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Budapest H-1117, Hungary
| | - László Kőhidai
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest H-1089, Hungary
| | - Eszter Lajkó
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest H-1089, Hungary.
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3
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Enyedi KN, Basa B, Mező G, Lajkó E. Photoinduced Hydrogel-Forming Caged Peptides with Improved Solubility. ACS Omega 2024; 9:6894-6900. [PMID: 38371799 PMCID: PMC10870261 DOI: 10.1021/acsomega.3c08289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 12/14/2023] [Accepted: 01/18/2024] [Indexed: 02/20/2024]
Abstract
Self-assembling peptides are attractive alternatives in the field of biomaterial science due to their variability and biocompatibility. Unfortunately, such peptides have poor solubility, and their purification, synthesis, and overall handling are challenging. Our main objective was to develop a cage peptide design with full control over self-assembly. Theoretically, aggregation can be suppressed by temporally masking the amino acid side chains at critical positions. Taking into account several biological and synthetic requirements, a photosensitive protecting group, p-hydroxy-phenacyl (pHP), was chosen as the "masking" moiety. To test our theory, EAK16-II was chosen as a model self-assembling peptide, and a caged derivative containing photosensitive pHP groups was synthesized. Both spectroscopic and in vitro experiments on A2058 melanoma cells confirmed our hypothesis that the caged-EAK16-II peptide has good solubility and that the hydrogel formed after photolysis results in similar viability and cell aggregate formation of melanoma cells as the native EAK16-II-based hydrogel.
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Affiliation(s)
- Kata N. Enyedi
- Faculty
of Science, Institute of Chemistry, Department of Organic Chemistry, Eötvös Loránd University, Pázmány Péter
sétány 1/A, 1117 Budapest, Hungary
- HUN-REN-ELTE
Research Group of Peptide Chemistry, Eötvös
Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - Bettina Basa
- Faculty
of Science, Institute of Chemistry, Department of Organic Chemistry, Eötvös Loránd University, Pázmány Péter
sétány 1/A, 1117 Budapest, Hungary
- HUN-REN-ELTE
Research Group of Peptide Chemistry, Eötvös
Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - Gábor Mező
- Faculty
of Science, Institute of Chemistry, Department of Organic Chemistry, Eötvös Loránd University, Pázmány Péter
sétány 1/A, 1117 Budapest, Hungary
- HUN-REN-ELTE
Research Group of Peptide Chemistry, Eötvös
Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - Eszter Lajkó
- Department
of Genetics, Cell- and Immunobiology, Semmelweis
University, Nagyvárad tér 4, 1089 Budapest, Hungary
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4
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Mező G, Gomena J, Ranđelović I, Dókus EL, Kiss K, Pethő L, Schuster S, Vári B, Vári-Mező D, Lajkó E, Polgár L, Kőhidai L, Tóvári J, Szabó I. Oxime-Linked Peptide-Daunomycin Conjugates as Good Tools for Selection of Suitable Homing Devices in Targeted Tumor Therapy: An Overview. Int J Mol Sci 2024; 25:1864. [PMID: 38339141 PMCID: PMC10855781 DOI: 10.3390/ijms25031864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
Chemotherapy is still one of the main therapeutic approaches in cancer therapy. Nevertheless, its poor selectivity causes severe toxic side effects that, together with the development of drug resistance in tumor cells, results in a limitation for its application. Tumor-targeted drug delivery is a possible choice to overcome these drawbacks. As well as monoclonal antibodies, peptides are promising targeting moieties for drug delivery. However, the development of peptide-drug conjugates (PDCs) is still a big challenge. The main reason is that the conjugates have to be stable in circulation, but the drug or its active metabolite should be released efficiently in the tumor cells. For this purpose, suitable linker systems are needed that connect the drug molecule with the homing peptide. The applied linker systems are commonly categorized as cleavable and non-cleavable linkers. Both the groups possess advantages and disadvantages that are summarized briefly in this manuscript. Moreover, in this review paper, we highlight the benefit of oxime-linked anthracycline-peptide conjugates in the development of PDCs. For instance, straightforward synthesis as well as a conjugation reaction proceed in excellent yields, and the autofluorescence of anthracyclines provides a good tool to select the appropriate homing peptides. Furthermore, we demonstrate that these conjugates can be used properly in in vivo studies. The results indicate that the oxime-linked PDCs are potential candidates for targeted tumor therapy.
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Affiliation(s)
- Gábor Mező
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
- Institute of Chemistry, ELTE, Eötvös Loránd University, 1117 Budapest, Hungary
| | - Jacopo Gomena
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
- Institute of Chemistry, ELTE, Eötvös Loránd University, 1117 Budapest, Hungary
| | - Ivan Ranđelović
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122 Budapest, Hungary; (I.R.); (B.V.); (J.T.)
| | - Endre Levente Dókus
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
| | - Krisztina Kiss
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, 1111 Budapest, Hungary
| | - Lilla Pethő
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
| | - Sabine Schuster
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
- Institute of Chemistry, ELTE, Eötvös Loránd University, 1117 Budapest, Hungary
| | - Balázs Vári
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122 Budapest, Hungary; (I.R.); (B.V.); (J.T.)
- School of Ph.D. Studies, Doctoral School of Pathological Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Diána Vári-Mező
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122 Budapest, Hungary; (I.R.); (B.V.); (J.T.)
- School of Ph.D. Studies, Doctoral School of Pathological Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Eszter Lajkó
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, 1089 Budapest, Hungary; (E.L.); (L.P.); (L.K.)
| | - Lívia Polgár
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, 1089 Budapest, Hungary; (E.L.); (L.P.); (L.K.)
| | - László Kőhidai
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, 1089 Budapest, Hungary; (E.L.); (L.P.); (L.K.)
| | - József Tóvári
- Department of Experimental Pharmacology and the National Tumor Biology Laboratory, National Institute of Oncology, 1122 Budapest, Hungary; (I.R.); (B.V.); (J.T.)
- School of Ph.D. Studies, Doctoral School of Pathological Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Ildikó Szabó
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (J.G.); (E.L.D.); (L.P.); (S.S.); (D.V.-M.); (I.S.)
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Szabó I, Biri-Kovács B, Vári B, Ranđelović I, Vári-Mező D, Juhász É, Halmos G, Bősze S, Tóvári J, Mező G. Targeting the Melanocortin 1 Receptor in Melanoma: Biological Activity of α-MSH-Peptide Conjugates. Int J Mol Sci 2024; 25:1095. [PMID: 38256168 PMCID: PMC10816934 DOI: 10.3390/ijms25021095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 01/12/2024] [Accepted: 01/14/2024] [Indexed: 01/24/2024] Open
Abstract
Malignant melanoma is one of the most aggressive and resistant tumor types, with high metastatic properties. Because of the lack of suitable chemotherapeutic agents for treatment, the 5-year survival rate of melanoma patients with regional and distant metastases is lower than 10%. Targeted tumor therapy that provides several promising results might be a good option for the treatment of malignant melanomas. Our goal was to develop novel melanoma-specific peptide-drug conjugates for targeted tumor therapy. Melanocortin-1-receptor (MC1R) is a cell surface receptor responsible for melanogenesis and it is overexpressed on the surface of melanoma cells, providing a good target. Its native ligand, α-MSH (α-melanocyte-stimulating hormone) peptide, or its derivatives, might be potential homing devices for this purpose. Therefore, we prepared three α-MSH derivative-daunomycin (Dau) conjugates and their in vitro and in vivo antitumor activities were compared. Dau has an autofluorescence property; therefore, it is suitable for preparing conjugates for in vitro (e.g., cellular uptake) and in vivo experiments. Dau was attached to the peptides via a non-cleavable oxime linkage that was applied efficiently in our previous experiments, resulting in conjugates with high tumor growth inhibition activity. The results indicated that the most promising conjugate was the compound in which Dau was connected to the side chain of Lys (Ac-SYSNleEHFRWGK(Dau=Aoa)PV-NH2). The highest cellular uptake by melanoma cells was demonstrated using the compound, with the highest tumor growth inhibition detected both on mouse (38.6% on B16) and human uveal melanoma (55% on OMC-1) cells. The effect of the compound was more pronounced than that of the free drug.
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Affiliation(s)
- Ildikó Szabó
- HUN-REN–ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (I.S.); (B.B.-K.); (D.V.-M.); (S.B.)
- MTA-TTK “Momentum” Peptide-Based Vaccines Research Group, Institute of Materials and Environmental Chemistry, HUN-REN Research Centre for Natural Sciences, 1117 Budapest, Hungary
| | - Beáta Biri-Kovács
- HUN-REN–ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (I.S.); (B.B.-K.); (D.V.-M.); (S.B.)
| | - Balázs Vári
- National Tumor Biology Laboratory, Department of Experimental Pharmacology, National Institute of Oncology, 1122 Budapest, Hungary; (B.V.); (I.R.); (J.T.)
- School of Ph.D. Studies, Doctoral School of Pathological Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Ivan Ranđelović
- National Tumor Biology Laboratory, Department of Experimental Pharmacology, National Institute of Oncology, 1122 Budapest, Hungary; (B.V.); (I.R.); (J.T.)
| | - Diána Vári-Mező
- HUN-REN–ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (I.S.); (B.B.-K.); (D.V.-M.); (S.B.)
- National Tumor Biology Laboratory, Department of Experimental Pharmacology, National Institute of Oncology, 1122 Budapest, Hungary; (B.V.); (I.R.); (J.T.)
- School of Ph.D. Studies, Doctoral School of Pathological Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Éva Juhász
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Gábor Halmos
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary;
| | - Szilvia Bősze
- HUN-REN–ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (I.S.); (B.B.-K.); (D.V.-M.); (S.B.)
| | - József Tóvári
- National Tumor Biology Laboratory, Department of Experimental Pharmacology, National Institute of Oncology, 1122 Budapest, Hungary; (B.V.); (I.R.); (J.T.)
- School of Ph.D. Studies, Doctoral School of Pathological Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Gábor Mező
- HUN-REN–ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary; (I.S.); (B.B.-K.); (D.V.-M.); (S.B.)
- Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary
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Vári B, Dókus L, Borbély A, Gaál A, Vári-Mező D, Ranđelović I, Sólyom-Tisza A, Varga Z, Szoboszlai N, Mező G, Tóvári J. SREKA-targeted liposomes for highly metastatic breast cancer therapy. Drug Deliv 2023; 30:2174210. [PMID: 36752075 PMCID: PMC9930758 DOI: 10.1080/10717544.2023.2174210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
Chemotherapy is still a leading therapeutic approach in various tumor types that is often accompanied by a poor prognosis because of metastases. PEGylated liposomes with CREKA targeting moiety are well-known therapeutic agents, especially in highly metastatic experimental models. CREKA specifically targets tumor-associated ECM, which is present at the primary, as well as metastatic tumor sites. To better understand the function of the targeting moieties, we decided to design various liposome formulations with different amounts of targeting moiety attached to their DSPE-PEG molecules. Moreover, a new tumor-homing pentapeptide (SREKA) was designed, and a novel conjugation strategy between SREKA and DSPE-PEGs. First, the in vitro proliferation inhibition of drug-loaded liposomes and the cellular uptake of their cargo were investigated. Afterward, liposome stability in murine blood and drug accumulation in different tissues were measured. Furthermore, in vivo tumor growth, and metastasis inhibition potencies of the different liposome formulations were examined. According to our comparative studies, SREKA-liposomes have a uniform phenotype after formulation and have similar characteristics and tumor-homing capabilities to CREKA-liposomes. However, the exchange of the N-terminal cysteine to serine during conjugation results in a higher production yield and better stability upon conjugation to DSPE-PEGs. We also showed that SREKA-liposomes have significant inhibition on primary tumor growth and metastasis incidence; furthermore, increase the survival rate of tumor-bearing mice. Besides, we provide evidence that the amount of targeting moiety attached to DSPE-PEGs is largely responsible for the stability of liposomes, therefore it plays an important role in toxicity and targeting.
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Affiliation(s)
- Balázs Vári
- National Institute of Oncology, Department of Experimental Pharmacology, National Tumor Biology Laboratory, Budapest, Hungary,School of Ph.D. Studies, Semmelweis University, Budapest, Hungary
| | - Levente Dókus
- Research Group of Peptide Chemistry, Eötvös Loránd Research Network, Budapest, Hungary
| | - Adina Borbély
- Faculty of Science, Institute of Chemistry, Eötvös Loránd University, Budapest, Hungary,MTA-ELTE Lendület Ion Mobility Mass Spectrometry Research Group, Budapest, Hungary
| | - Anikó Gaál
- Eötvös, Loránd Research Network, Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Biological Nanochemistry Research Group, Budapest, Hungary
| | - Diána Vári-Mező
- National Institute of Oncology, Department of Experimental Pharmacology, National Tumor Biology Laboratory, Budapest, Hungary,School of Ph.D. Studies, Semmelweis University, Budapest, Hungary
| | - Ivan Ranđelović
- National Institute of Oncology, Department of Experimental Pharmacology, National Tumor Biology Laboratory, Budapest, Hungary
| | - Anna Sólyom-Tisza
- Department of Tumor Biology, National Korányi Institute of Pulmonology, Budapest, Hungary
| | - Zoltán Varga
- Eötvös, Loránd Research Network, Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Biological Nanochemistry Research Group, Budapest, Hungary
| | - Norbert Szoboszlai
- Faculty of Science, Institute of Chemistry, Eötvös Loránd University, Budapest, Hungary
| | - Gábor Mező
- Research Group of Peptide Chemistry, Eötvös Loránd Research Network, Budapest, Hungary,Faculty of Science, Institute of Chemistry, Eötvös Loránd University, Budapest, Hungary,Gábor Mező School of Ph.D. Studies, Semmelweis University, Budapest, Hungary
| | - József Tóvári
- National Institute of Oncology, Department of Experimental Pharmacology, National Tumor Biology Laboratory, Budapest, Hungary,CONTACT József Tóvári National Institute of Oncology, Department of Experimental Pharmacology, National Tumor Biology Laboratory, Budapest, Hungary
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7
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Trencsényi G, Enyedi KN, Mező G, Halmos G, Képes Z. NGR-Based Radiopharmaceuticals for Angiogenesis Imaging: A Preclinical Review. Int J Mol Sci 2023; 24:12675. [PMID: 37628856 PMCID: PMC10454655 DOI: 10.3390/ijms241612675] [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: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Angiogenesis plays a crucial role in tumour progression and metastatic spread; therefore, the development of specific vectors targeting angiogenesis has attracted the attention of several researchers. Since angiogenesis-associated aminopeptidase N (APN/CD13) is highly expressed on the surface of activated endothelial cells of new blood vessels and a wide range of tumour cells, it holds great promise for imaging and therapy in the field of cancer medicine. The selective binding capability of asparagine-glycine-arginine (NGR) motif containing molecules to APN/CD13 makes radiolabelled NGR peptides promising radiopharmaceuticals for the non-invasive, real-time imaging of APN/CD13 overexpressing malignancies at the molecular level. Preclinical small animal model systems are major keystones for the evaluation of the in vivo imaging behaviour of radiolabelled NGR derivatives. Based on existing literature data, several positron emission tomography (PET) and single-photon emission computed tomography (SPECT) radioisotopes have been applied so far for the labelling of tumour vasculature homing NGR sequences such as Gallium-68 (68Ga), Copper-64 (64Cu), Technetium-99m (99mTc), Lutetium-177 (177Lu), Rhenium-188 (188Re), or Bismuth-213 (213Bi). Herein, a comprehensive overview is provided of the recent preclinical experiences with radiolabelled imaging probes targeting angiogenesis.
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Affiliation(s)
- György Trencsényi
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary;
| | - Kata Nóra Enyedi
- ELKH-ELTE Research Group of Peptide Chemistry, Pázmány Péter Sétány 1/A, H-1117 Budapest, Hungary; (K.N.E.); (G.M.)
- Institute of Chemistry, Faculty of Science, Eötvös Loránd University, Pázmány Péter Sétány 1/A, H-1117 Budapest, Hungary
| | - Gábor Mező
- ELKH-ELTE Research Group of Peptide Chemistry, Pázmány Péter Sétány 1/A, H-1117 Budapest, Hungary; (K.N.E.); (G.M.)
- Institute of Chemistry, Faculty of Science, Eötvös Loránd University, Pázmány Péter Sétány 1/A, H-1117 Budapest, Hungary
| | - Gábor Halmos
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary;
| | - Zita Képes
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary;
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8
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Zambra M, Ranđelović I, Talarico F, Borbély A, Svajda L, Tóvári J, Mező G, Bodero L, Colombo S, Arrigoni F, Fasola E, Gazzola S, Piarulli U. Optimizing the enzymatic release of MMAE from isoDGR-based small molecule drug conjugate by incorporation of a GPLG-PABC enzymatically cleavable linker. Front Pharmacol 2023; 14:1215694. [PMID: 37492088 PMCID: PMC10363981 DOI: 10.3389/fphar.2023.1215694] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 06/28/2023] [Indexed: 07/27/2023] Open
Abstract
Antibody-Drug Conjugates (ADCs) and Small Molecule-Drug Conjugates (SMDCs) represent successful examples of targeted drug-delivery technologies for overcoming unwanted side effects of conventional chemotherapy in cancer treatment. In both strategies, a cytotoxic payload is connected to the tumor homing moiety through a linker that releases the drug inside or in proximity of the tumor cell, and that represents a key component for the final therapeutic effect of the conjugate. Here, we show that the replacement of the Val-Ala-p-aminobenzyloxycarbamate linker with the Gly-Pro-Leu-Gly-p-aminobenzyloxycarbamate (GPLG-PABC) sequence as enzymatically cleavable linker in the SMDC bearing the cyclo[DKP-isoDGR] αVβ3 integrin ligand as tumor homing moiety and the monomethyl auristatin E (MMAE) as cytotoxic payload led to a 4-fold more potent anti-tumoral effect of the final conjugate on different cancer cell lines. In addition, the synthesized conjugate resulted to be significantly more potent than the free MMAE when tested following the "kiss-and-run" protocol, and the relative potency were clearly consistent with the expression of the αVβ3 integrin receptor in the considered cancer cell lines. In vitro enzymatic cleavage tests showed that the GPLG-PABC linker is cleaved by lysosomal enzymes, and that the released drug is observable already after 15 min of incubation. Although additional data are needed to fully characterize the releasing capacity of GPLG-PABC linker, our findings are of therapeutic significance since we are introducing an alternative to other well-established enzymatically sensitive peptide sequences that might be used in the future for generating more efficient and less toxic drug delivery systems.
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Affiliation(s)
- Marco Zambra
- Science and High Technology Department, University of Insubria, Como, Italy
| | - Ivan Ranđelović
- The National Tumor Biology Laboratory, Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary
| | - Francesco Talarico
- Science and High Technology Department, University of Insubria, Como, Italy
| | - Adina Borbély
- MTA-ELTE Lendület Ion Mobility Mass Spectrometry Research Group and Faculty of Science, Institute of Chemistry, ELTE Eötvös Loránd University, Budapest, Hungary
| | - Laura Svajda
- KINETO Lab Ltd., Budapest, Hungary
- Doctoral School of Pathological Sciences, Semmelweis University, Budapest, Hungary
| | - József Tóvári
- The National Tumor Biology Laboratory, Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary
| | - Gábor Mező
- ELKH-ELTE Research Group of Peptide Chemistry, Faculty of Science, Eötvös Loránd University, Budapest, Hungary
- Faculty of Science, Institute of Chemistry, Eötvös Loránd University, Budapest, Hungary
| | - Lizeth Bodero
- Science and High Technology Department, University of Insubria, Como, Italy
| | - Sveva Colombo
- Science and High Technology Department, University of Insubria, Como, Italy
- Department of Chemistry Organic and Bioorganic Chemistry, Bielefeld University, Bielefeld, Germany
| | - Federico Arrigoni
- Science and High Technology Department, University of Insubria, Como, Italy
| | - Elettra Fasola
- Science and High Technology Department, University of Insubria, Como, Italy
| | - Silvia Gazzola
- Science and High Technology Department, University of Insubria, Como, Italy
| | - Umberto Piarulli
- Science and High Technology Department, University of Insubria, Como, Italy
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9
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Pethő L, Oláh-Szabó R, Mező G. Influence of the Drug Position on Bioactivity in Angiopep-2-Daunomycin Conjugates. Int J Mol Sci 2023; 24:ijms24043106. [PMID: 36834514 PMCID: PMC9959518 DOI: 10.3390/ijms24043106] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/25/2023] [Accepted: 01/30/2023] [Indexed: 02/09/2023] Open
Abstract
The blood-brain barrier (BBB) is a semipermeable system, and, therefore, most of the active substances are poorly transported through this barrier, resulting in decreased therapeutic effects. Angiopep-2 (TFFYGGSRGKRNNFKTEEY) is a peptide ligand of low-density lipoprotein receptor-related protein-1 (LRP1), which can cross the BBB via receptor-mediated transcytosis and simultaneously target glioblastomas. Angiopep-2 contains three amino groups that have previously been used to produce drug-peptide conjugates, although the role and importance of each position have not yet been investigated. Thus, we studied the number and position of drug molecules in Angiopep-2 based conjugates. Conjugates containing one, two, and three daunomycin molecules conjugated via oxime linkage in all possible variations were prepared. The in vitro cytostatic effect and cellular uptake of the conjugates were investigated on U87 human glioblastoma cells. Degradation studies in the presence of rat liver lysosomal homogenates were also performed in order for us to better understand the structure-activity relationship and to determine the smallest metabolites. Conjugates with the best cytostatic effects had a drug molecule at the N-terminus. We demonstrated that the increasing number of drug molecules does not necessarily increase the efficacy of the conjugates, and proved that modification of the different conjugation sites results in differing biological effectiveness.
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Affiliation(s)
- Lilla Pethő
- ELKH-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary
| | - Rita Oláh-Szabó
- ELKH-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary
| | - Gábor Mező
- ELKH-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary
- Institute of Chemistry, Faculty of Science, Eötvös Loránd University, 1117 Budapest, Hungary
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10
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Kurimay T, Fenyves T, Szederkényi J, Mező G, Pelikán A. The Usefulness of Telemedicine in Perinatal Mental Health Services During and after COVID-19 Pandemic. Detailed Experience of the Team of „Together” Baby-Mother-Father Unit in Budapest. Eur Psychiatry 2022. [PMCID: PMC9565268 DOI: 10.1192/j.eurpsy.2022.79] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Due to the nature of the perinatal period, it affects generations who are more at home in the electronic space, hence some form of telemedicine can be used in a number of areas. The “Together” Baby-Mother-Father Integrated Program has been running since 2004. Both the condition of those affected and the current epidemic makes it difficult for patients and their families to access adequate perinatal specialist care. At the beginning of the epidemic, the switch to telemedicinal psychiatric care has been rapid and focused mainly on the use of Phone, Skype, Viber and Email. To our findings the advantages include, easier access to care, and more frequent contacts. The home environment is accessible and the families are more involved. Also, care does not compete with the scarce resources of time and space. Some of the possible disadvantages are, that more work on intimacy is needed, and the treatability of certain diseases is questionable (e.g., psychoses). Care is less documentable with the current regulations, and funding has not yet been adapted to the changes. The telemedicinal care and support network in Hungary - among many - contains an online medical system (EESZT) including e-prescription. Online- psychotherapy, consultation, peer-group platforms. There is a non-stop hotline for patients, etc. In 2021 the total number of our cases increased by 34%, but realistically the visit number was also higher, due to the amount of shorter telephone and e-mail interactions. Depression and bipolar disorder were among the highest proportion by the patients present.
Disclosure
No significant relationships.
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11
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Schuster S, Juhász É, Halmos G, Neundorf I, Gennari C, Mező G. Development and Biochemical Characterization of Self-Immolative Linker Containing GnRH-III-Drug Conjugates. Int J Mol Sci 2022; 23:ijms23095071. [PMID: 35563462 PMCID: PMC9105102 DOI: 10.3390/ijms23095071] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 04/26/2022] [Accepted: 04/29/2022] [Indexed: 12/10/2022] Open
Abstract
The human gonadotropin releasing hormone (GnRH-I) and its sea lamprey analogue GnRH-III specifically bind to GnRH receptors on cancer cells and can be used as targeting moieties for targeted tumor therapy. Considering that the selective release of drugs in cancer cells is of high relevance, we were encouraged to develop cleavable, self-immolative GnRH-III-drug conjugates which consist of a p-aminobenzyloxycarbonlyl (PABC) spacer between a cathepsin B-cleavable dipeptide (Val-Ala, Val-Cit) and the classical anticancer drugs daunorubicin (Dau) and paclitaxel (PTX). Alongside these compounds, non-cleavable GnRH-III-drug conjugates were also synthesized, and all compounds were analyzed for their antiproliferative activity. The cleavable GnRH-III bioconjugates revealed a growth inhibitory effect on GnRH receptor-expressing A2780 ovarian cancer cells, while their activity was reduced on Panc-1 pancreatic cancer cells exhibiting a lower GnRH receptor level. Moreover, the antiproliferative activity of the non-cleavable counterparts was strongly reduced. Additionally, the efficient cleavage of the Val-Ala linker and the subsequent release of the drugs could be verified by lysosomal degradation studies, while radioligand binding studies ensured that the GnRH-III-drug conjugates bound to the GnRH receptor with high affinity. Our results underline the high value of GnRH-III-based homing devices and the application of cathepsin B-cleavable linker systems for the development of small molecule drug conjugates (SMDCs).
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Affiliation(s)
- Sabine Schuster
- Faculty of Science, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary;
- ELKH-ELTE Research Group of Peptide Chemistry, Faculty of Science, Eötvös Loránd University, 1117 Budapest, Hungary
| | - Éva Juhász
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Gábor Halmos
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary;
| | - Ines Neundorf
- Department of Chemistry, Institute of Biochemistry, University of Cologne, 50674 Cologne, Germany;
| | - Cesare Gennari
- Dipartimento di Chimica, Università degli Studi di Milano, 20133 Milano, Italy;
| | - Gábor Mező
- Faculty of Science, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary;
- ELKH-ELTE Research Group of Peptide Chemistry, Faculty of Science, Eötvös Loránd University, 1117 Budapest, Hungary
- Correspondence: ; Tel.: +36-1-372-2500
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12
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Szabó I, Yousef M, Soltész D, Bató C, Mező G, Bánóczi Z. Redesigning of Cell-Penetrating Peptides to Improve Their Efficacy as a Drug Delivery System. Pharmaceutics 2022; 14:pharmaceutics14050907. [PMID: 35631493 PMCID: PMC9146218 DOI: 10.3390/pharmaceutics14050907] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/11/2022] [Accepted: 04/13/2022] [Indexed: 12/29/2022] Open
Abstract
Cell-penetrating peptides (CPP) are promising tools for the transport of a broad range of compounds into cells. Since the discovery of the first members of this peptide family, many other peptides have been identified; nowadays, dozens of these peptides are known. These peptides sometimes have very different chemical–physical properties, but they have similar drawbacks; e.g., non-specific internalization, fast elimination from the body, intracellular/vesicular entrapment. Although our knowledge regarding the mechanism and structure–activity relationship of internalization is growing, the prediction and design of the cell-penetrating properties are challenging. In this review, we focus on the different modifications of well-known CPPs to avoid their drawbacks, as well as how these modifications may increase their internalization and/or change the mechanism of penetration.
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Affiliation(s)
- Ildikó Szabó
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös Loránd Research Network (ELKH), Eötvös Loránd University, 1117 Budapest, Hungary;
- Correspondence: (I.S.); (Z.B.)
| | - Mo’ath Yousef
- Department of Organic Chemistry, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary; (M.Y.); (D.S.); (C.B.)
| | - Dóra Soltész
- Department of Organic Chemistry, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary; (M.Y.); (D.S.); (C.B.)
| | - Csaba Bató
- Department of Organic Chemistry, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary; (M.Y.); (D.S.); (C.B.)
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös Loránd Research Network (ELKH), Eötvös Loránd University, 1117 Budapest, Hungary;
- Department of Organic Chemistry, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary; (M.Y.); (D.S.); (C.B.)
| | - Zoltán Bánóczi
- Department of Organic Chemistry, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary; (M.Y.); (D.S.); (C.B.)
- Correspondence: (I.S.); (Z.B.)
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13
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Dürvanger Z, Boros E, Nagy ZA, Hegedüs R, Megyeri M, Dobó J, Gál P, Schlosser G, Ángyán AF, Gáspári Z, Perczel A, Harmat V, Mező G, Menyhárd DK, Pál G. Directed Evolution-Driven Increase of Structural Plasticity Is a Prerequisite for Binding the Complement Lectin Pathway Blocking MASP-Inhibitor Peptides. ACS Chem Biol 2022; 17:969-986. [PMID: 35378038 PMCID: PMC9016712 DOI: 10.1021/acschembio.2c00114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
MASP-1 and MASP-2
are key activator proteases of the complement
lectin pathway. The first specific mannose-binding lectin-associated
serine protease (MASP) inhibitors had been developed from the 14-amino-acid
sunflower trypsin inhibitor (SFTI) peptide by phage display, yielding
SFTI-based MASP inhibitors, SFMIs. Here, we present the crystal structure
of the MASP-1/SFMI1 complex that we analyzed in comparison to other
existing MASP-1/2 structures. Rigidified backbone structure has long
been accepted as a structural prerequisite for peptide inhibitors
of proteases. We found that a hydrophobic cluster organized around
the P2 Thr residue is essential for the structural stability of wild-type
SFTI. We also found that the same P2 Thr prevents binding of the rigid
SFTI-like peptides to the substrate-binding cleft of both MASPs as
the cleft is partially blocked by large gatekeeper enzyme loops. Directed
evolution removed this obstacle by replacing the P2 Thr with a Ser,
providing the SFMIs with high-degree structural plasticity, which
proved to be essential for MASP inhibition. To gain more insight into
the structural criteria for SFMI-based MASP-2 inhibition, we systematically
modified MASP-2-specific SFMI2 by capping its two termini and by replacing
its disulfide bridge with varying length thioether linkers. By doing
so, we also aimed to generate a versatile scaffold that is resistant
to reducing environment and has increased stability in exopeptidase-containing
biological environments. We found that the reduction-resistant disulfide-substituted l-2,3-diaminopropionic acid (Dap) variant possessed near-native
potency. As MASP-2 is involved in the life-threatening thrombosis
in COVID-19 patients, our synthetic, selective MASP-2 inhibitors could
be relevant coronavirus drug candidates.
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Affiliation(s)
- Zsolt Dürvanger
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
| | - Eszter Boros
- Department of Biochemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary
| | - Zoltán Attila Nagy
- Department of Biochemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary
| | - Rózsa Hegedüs
- MTA-ELTE Research Group of Peptide Chemistry, Pázmány Péter sétány 1/A, Budapest H-1117, Hungary
| | - Márton Megyeri
- Institute of Enzymology, Research Centre for Natural Sciences, Magyar tudósok krt 2, H-1117 Budapest, Hungary
| | - József Dobó
- Institute of Enzymology, Research Centre for Natural Sciences, Magyar tudósok krt 2, H-1117 Budapest, Hungary
| | - Péter Gál
- Institute of Enzymology, Research Centre for Natural Sciences, Magyar tudósok krt 2, H-1117 Budapest, Hungary
| | - Gitta Schlosser
- Department of Analytical Chemistry, MTA-ELTE Lendület Ion Mobility Mass Spectrometry Research Group, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, H-1117 Budapest, Hungary
| | - Annamária F. Ángyán
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Práter u. 50/A, H-1083 Budapest, Hungary
| | - Zoltán Gáspári
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, Práter u. 50/A, H-1083 Budapest, Hungary
| | - András Perczel
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
- MTA-ELTE Protein Modelling Research Group, Eötvös
Loránd Research Network, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
| | - Veronika Harmat
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
- MTA-ELTE Protein Modelling Research Group, Eötvös
Loránd Research Network, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Pázmány Péter sétány 1/A, Budapest H-1117, Hungary
- Department of Organic Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest H-1117, Hungary
| | - Dóra K. Menyhárd
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
- MTA-ELTE Protein Modelling Research Group, Eötvös
Loránd Research Network, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
| | - Gábor Pál
- Department of Biochemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest, Hungary
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14
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Farkasinszky G, Dénes N, Rácz S, Kis A, Péliné JS, Opposits G, Veres G, Balkay L, Kertész I, Mező G, Hunyadi J, Trencsényi G. In Vivo Imaging of Ischemia/Reperfusion-mediated Aminopeptidase N Expression in Surgical Rat Model Using 68Ga-NOTA-c(NGR). In Vivo 2022; 36:657-666. [PMID: 35241519 DOI: 10.21873/invivo.12750] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/06/2021] [Accepted: 12/22/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Previous studies have already shown that 68Gallium(68Ga)-labeled NGR-based radiopharmaceuticals specifically bind to the neoangiogenic molecule Aminopeptidase N (APN/CD13). The aim of this study was to evaluate the applicability of 68Ga-NOTA-c(NGR) in the in vivo detection of the temporal changes of APN/CD13 expression in the diabetic retinopathy rat model using positron emission tomography (PET). MATERIALS AND METHODS Ischemia/reperfusion injury was initiated by surgical ligation of the left bulbus oculi of rats. In vivo PET imaging studies were performed after the surgery using 68Ga-NOTA-c(NGR). RESULTS Significantly higher 68Ga-NOTA-c(NGR) uptake was observed in the surgically-ligated left bulbus, compared to the bulbus of the non-surgical group at each investigated time point. The western blot and histological analysis confirmed the increased expression of the neo-angiogenic marker APN/CD13. CONCLUSION 68Ga-NOTA-c(NGR) is a suitable radiotracer for the detection of the temporal changes of the ischemia/reperfusion-mediated expression of APN/CD13 in the surgically induced diabetic retinopathy rat model.
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Affiliation(s)
- Gergely Farkasinszky
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Gyula Petrányi Doctoral School of Allergy and Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Noémi Dénes
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Gyula Petrányi Doctoral School of Allergy and Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Szilvia Rácz
- Division of Radiology, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Adrienn Kis
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Judit Szabó Péliné
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gábor Opposits
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gergő Veres
- Division of Radiology, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Balkay
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - István Kertész
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gábor Mező
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Budapest, Hungary.,MTA-ELTE, Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, Budapest, Hungary
| | - János Hunyadi
- Department of Dermatology, University of Debrecen, Debrecen, Hungary
| | - György Trencsényi
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; .,Gyula Petrányi Doctoral School of Allergy and Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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15
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Mező G, Tripodi Angelo Pierluigi A, Ranđelovič I, Enyedi NK, Biri-Kovács B, Tóvári J. [Application of Asn-Gly-Arg sequence based cyclic peptides for targeted tumor therapy]. Magy Onkol 2021; 65:113-120. [PMID: 34081759] [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] [Received: 04/14/2021] [Accepted: 05/15/2021] [Indexed: 06/12/2023]
Abstract
The in vivo antitumor effect of two NGR sequence containing peptide-daunomycin conjugates was studied on CD13+ Kaposi's sarcoma s.c. tumor model on SCID mice, and on orthotopically developed CD13- HT-29 colon adenocarcinoma SCID mouse model. Both tumor types were positive for integrins. Significant tumor growth inhibition was observed on both tumor types by the treatment with the conjugates (Dau=Aoa-GFLGK(cyclo[KNGRE]-GG)-NH2 (1) and Dau=Aoa-GFLGK(cyclo[NleNGRE]-GG)-NH2 (2)). KS conjugate 1 with rather stable construct was more potent in tumor growth inhibition that might be explained by the CD13 receptor recognition of NGR sequence. In contrast, conjugate 2 that has propensity to rearrange isoAsp derivative showed significantly higher inhibition on CD13- HT-29 tumor model that is related to the integrin binding of isoDGR sequence. Next to the low toxic side effect of the conjugates in comparison with the free daunomycin, the positive efficiency of the conjugates was detected by the lower proliferation index and lower neovascularization of the tumor tissue.
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Affiliation(s)
- Gábor Mező
- Kémiai Intézet, Eötvös Loránd Tudományegyetem, Budapest, Hungary.
| | | | - Ivan Ranđelovič
- Kísérletes Farmakológiai Osztály, Országos Onkológiai Intézet, Budapest, Hungary
| | - Nóra Kata Enyedi
- Kémiai Intézet, Eötvös Loránd Tudományegyetem, Budapest, Hungary.
| | | | - József Tóvári
- Kísérletes Farmakológiai Osztály, Országos Onkológiai Intézet, Budapest, Hungary
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16
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Dénes N, Kis A, Szabó JP, Jószai I, Hajdu I, Arató V, Enyedi KN, Mező G, Hunyadi J, Trencsényi G, Kertész I. In vivo preclinical assessment of novel 68Ga-labelled peptides for imaging of tumor associated angiogenesis using positron emission tomography imaging. Appl Radiat Isot 2021; 174:109778. [PMID: 34004593 DOI: 10.1016/j.apradiso.2021.109778] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 04/27/2021] [Accepted: 05/07/2021] [Indexed: 11/28/2022]
Abstract
Formation and growth of metastases require a new vascular network. Angiogenesis plays an essential role in the expansion and progression of most malignancies. A high number of molecular pathways regulate angiogenesis, including vascular endothelial growth factor (VEGF), αvβ3 integrin, matrix metalloproteinases (MMPs), or aminopeptidase N. The aim of this study is to involve new, easily accessible peptide sequences into the of neo-angiogenesis in malignant processes. Labelling of these peptide ligands with 68Ga enable PET imaging of neo-vascularization.
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Affiliation(s)
- Noémi Dénes
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary; Gyula Petrányi Doctoral School of Allergy and Clinical Immunology, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary
| | - Adrienn Kis
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary; Doctoral School of Clinical Medicine, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary
| | - Judit P Szabó
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary; Doctoral School of Clinical Medicine, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary
| | - István Jószai
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary
| | - István Hajdu
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary
| | - Viktória Arató
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary
| | - Kata Nóra Enyedi
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Budapest, Hungary
| | - Gábor Mező
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Budapest, Hungary; MTA-ELTE, Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, Budapest, Hungary
| | - János Hunyadi
- Department of Dermatology, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary
| | - György Trencsényi
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary; Gyula Petrányi Doctoral School of Allergy and Clinical Immunology, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary; Doctoral School of Clinical Medicine, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary
| | - István Kertész
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032, Debrecen, Hungary.
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Borbély A, Pethő L, Szabó I, Al-Majidi M, Steckel A, Nagy T, Kéki S, Kalló G, Csősz É, Mező G, Schlosser G. Structural Characterization of Daunomycin-Peptide Conjugates by Various Tandem Mass Spectrometric Techniques. Int J Mol Sci 2021; 22:ijms22041648. [PMID: 33562082 PMCID: PMC7914584 DOI: 10.3390/ijms22041648] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 11/16/2022] Open
Abstract
The use of peptide-drug conjugates has generated wide interest as targeted antitumor therapeutics. The anthracycline antibiotic, daunomycin, is a widely used anticancer agent and it is often conjugated to different tumor homing peptides. However, comprehensive analytical characterization of these conjugates via tandem mass spectrometry (MS/MS) is challenging due to the lability of the O-glycosidic bond and the appearance of MS/MS fragment ions with little structural information. Therefore, we aimed to investigate the optimal fragmentation conditions that suppress the prevalent dissociation of the anthracycline drug and provide good sequence coverage. In this study, we comprehensively compared the performance of common fragmentation techniques, such as higher energy collisional dissociation (HCD), electron transfer dissociation (ETD), electron-transfer higher energy collisional dissociation (EThcD) and matrix-assisted laser desorption/ionization–tandem time-of-flight (MALDI-TOF/TOF) activation methods for the structural identification of synthetic daunomycin-peptide conjugates by high-resolution tandem mass spectrometry. Our results showed that peptide backbone fragmentation was inhibited by applying electron-based dissociation methods to conjugates, most possibly due to the “electron predator” effect of the daunomycin. We found that efficient HCD fragmentation was largely influenced by several factors, such as amino acid sequences, charge states and HCD energy. High energy HCD and MALDI-TOF/TOF combined with collision induced dissociation (CID) mode are the methods of choice to unambiguously assign the sequence, localize different conjugation sites and differentiate conjugate isomers.
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Affiliation(s)
- Adina Borbély
- MTA-ELTE Lendület Ion Mobility Mass Spectrometry Research Group and Department of Analytical Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary; (A.B.); (M.A.-M.); (A.S.)
| | - Lilla Pethő
- Eötvös Loránd Research Network, Supported Research Groups, Research Group of Peptide Chemistry, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary; (L.P.); (I.S.); (G.M.)
| | - Ildikó Szabó
- Eötvös Loránd Research Network, Supported Research Groups, Research Group of Peptide Chemistry, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary; (L.P.); (I.S.); (G.M.)
| | - Mohammed Al-Majidi
- MTA-ELTE Lendület Ion Mobility Mass Spectrometry Research Group and Department of Analytical Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary; (A.B.); (M.A.-M.); (A.S.)
- Hevesy György PhD School of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
| | - Arnold Steckel
- MTA-ELTE Lendület Ion Mobility Mass Spectrometry Research Group and Department of Analytical Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary; (A.B.); (M.A.-M.); (A.S.)
- Hevesy György PhD School of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
| | - Tibor Nagy
- Department of Applied Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (T.N.); (S.K.)
| | - Sándor Kéki
- Department of Applied Chemistry, Faculty of Science and Technology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (T.N.); (S.K.)
| | - Gergő Kalló
- Proteomics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (G.K.); (É.C.)
| | - Éva Csősz
- Proteomics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (G.K.); (É.C.)
| | - Gábor Mező
- Eötvös Loránd Research Network, Supported Research Groups, Research Group of Peptide Chemistry, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary; (L.P.); (I.S.); (G.M.)
- Department of Organic Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
| | - Gitta Schlosser
- MTA-ELTE Lendület Ion Mobility Mass Spectrometry Research Group and Department of Analytical Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary; (A.B.); (M.A.-M.); (A.S.)
- Correspondence: ; Tel.: +36-1-372-2500
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Al-Majidi M, Szabó D, Dókus L, Steckel A, Mező G, Schlosser G. Energy-resolved HCD fragmentation of daunorubicin-peptide conjugates. J Mass Spectrom 2020; 55:e4641. [PMID: 32930447 DOI: 10.1002/jms.4641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 07/28/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Affiliation(s)
- Mohammed Al-Majidi
- Faculty of Science, Institute of Chemistry, Hevesy György PhD School of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
- MTA-ELTE Research Group of Peptide Chemistry, Department of Organic Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
| | - Dániel Szabó
- Faculty of Science, Institute of Chemistry, Hevesy György PhD School of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
- MS Proteomics Research Group, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, Budapest, 1117, Hungary
| | - Levente Dókus
- MTA-ELTE Research Group of Peptide Chemistry, Department of Organic Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
- Faculty of Science, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
| | - Arnold Steckel
- Faculty of Science, Institute of Chemistry, Hevesy György PhD School of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
- MTA-ELTE Research Group of Peptide Chemistry, Department of Organic Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Department of Organic Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
- Faculty of Science, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
| | - Gitta Schlosser
- MTA-ELTE Research Group of Peptide Chemistry, Department of Organic Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
- Faculty of Science, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, 1117, Hungary
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Kis A, Dénes N, Szabó JP, Arató V, Jószai I, Enyedi KN, Lakatos S, Garai I, Mező G, Kertész I, Trencsényi G. In vivo assessment of aminopeptidase N (APN/CD13) specificity of different 68Ga-labelled NGR derivatives using PET/MRI imaging. Int J Pharm 2020; 589:119881. [PMID: 32946975 DOI: 10.1016/j.ijpharm.2020.119881] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/07/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023]
Abstract
Aminopeptidase N (APN/CD13) plays an important role in neoangiogenic process in malignancies. Our previous studies have already shown that 68Ga-labelled NOTA conjugated asparagine-glycine-arginine peptide (c[KNGRE]-NH2) specifically bind to APN/CD13 expressing tumors. The aim of this study was to evaluate and compare the APN/CD13 specificity of newly synthesized 68Ga-labelled NGR derivatives in vivo by PET/MRI imaging using hepatocellular carcinoma (He/De) and mesoblastic nephroma (Ne/De) tumor models. PET/MRI and ex vivo biodistribution studies were performed 11 ± 1 days after subcutaneous injection of tumor cells and 90 min after intravenous injection of 68Ga-NOTA-c(NGR), 68Ga-NODAGA-c(NGR), 68Ga-NODAGA-c(NGR) (MG1) or 68Ga-NODAGA-c(NGR) (MG2). The APN/CD13 selectivity was confirmed by blocking experiments and the APN/CD13 expression was verified by immunohistochemistry. 68Ga-labelled c(NGR) derivatives were produced with high specific activity and radiochemical purity. In control animals, low radiotracer accumulation was found in abdominal and thoracic organs. Using tumor-bearing animals we found that the 68Ga-NOTA-c(NGR), 68Ga-NODAGA-c(NGR), and 68Ga-NODAGA-c(NGR) (MG1) derivatives showed higher uptake in He/De and Ne/De tumors, than that of the accumulation of 68Ga-NODAGA-c(NGR) (MG2). APN/CD13 is a very promising target in PET imaging, however, the selection of the appropriate 68Ga-labelled NGR-based radiopharmaceutical is critical for the precise detection of tumor neo-angiogenesis and for monitoring the efficacy of anticancer therapy.
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Key Words
- (68)Ga
- Aminopeptidase N
- Angiogenesis
- CD13
- CID: 2796029, 1-hydroxybenzotriazole (HOBt)
- CID: 3036142, 1,4,7-triazacyclononane-1,4,7-triacetic acid (NOTA)
- CID: 33032, L-Glutamic acid
- CID: 5962, L-Lysine
- CID: 6228, N,N-dimethylformamide (DMF)
- CID: 6267, L-Asparagine
- CID: 6322, L-Arginine
- CID: 6422, triflouroacetic acid (TFA)
- CID: 750, Glyicine
- NGR
- PET/MRI imaging
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Affiliation(s)
- Adrienn Kis
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Hungary; Doctoral School of Clinical Medicine, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Noémi Dénes
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Hungary; Gyula Petrányi Doctoral School of Allergy and Clinical Immunology, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Judit P Szabó
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Hungary; Doctoral School of Clinical Medicine, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Viktória Arató
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Hungary
| | - István Jószai
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Hungary
| | - Kata Nóra Enyedi
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Budapest, Hungary
| | - Szilvia Lakatos
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Hungary
| | - Ildikó Garai
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Hungary; Scanomed LTD, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Gábor Mező
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Budapest, Hungary; MTA-ELTE, Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, Budapest, Hungary
| | - István Kertész
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Hungary
| | - György Trencsényi
- Division of Nuclear Medicine and Translational Imaging, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, Hungary; Doctoral School of Clinical Medicine, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; Gyula Petrányi Doctoral School of Allergy and Clinical Immunology, Faculty of Medicine, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary.
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Kiss K, Vass P, Farkas A, Hirsch E, Szabó E, Mező G, Nagy ZK, Marosi G. A solid doxycycline HP-β-CD formulation for reconstitution (i.v. bolus) prepared by scaled-up electrospinning. Int J Pharm 2020; 586:119539. [DOI: 10.1016/j.ijpharm.2020.119539] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/19/2020] [Accepted: 06/08/2020] [Indexed: 01/03/2023]
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Pethő L, Kasza G, Lajkó E, Láng O, Kőhidai L, Iván B, Mező G. Amphiphilic drug-peptide-polymer conjugates based on poly(ethylene glycol) and hyperbranched polyglycerol for epidermal growth factor receptor targeting: the effect of conjugate aggregation on in vitro activity. Soft Matter 2020; 16:5759-5769. [PMID: 32530018 DOI: 10.1039/d0sm00428f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Numerous peptide-drug conjugates have been developed over the years to enhance the specificity and selectivity of chemotherapeutic agents for tumour cells. In our present work, epidermal growth factor receptor targeting drug-peptide conjugates were prepared using GE11 and D4 peptides. To ensure the drug release, the cathepsin B labile GFLG spacer was incorporated between the targeting peptide and the drug molecule (daunomycin), which significantly increased the hydrophobicity and thereby decreased the water solubility of the conjugates. To overcome the solubility problem, drug-peptide-polymer conjugates with systematic structural variations were prepared, by linking poly(ethylene glycol) (PEG) or a well-defined amino-monofunctional hyperbranched polyglycerol (HbPG) directly or via a pentaglycine spacer to the targeting peptides. All the drug-peptide-polymer conjugates were water-soluble as confirmed by turbidimetric measurements. The results of the in vitro cell viability and cellular uptake measurements on HT-29 human colon adenocarcinoma cells proved that the HbPG and the PEG highly influenced the biological activity. The conjugation of the hydrophilic polymer resulted in the amphiphilic character of the conjugates, which led to self-aggregation and nanoparticle formation that decreased the cellular uptake above a specific aggregation concentration. On the other hand, the hydrodynamic volume and the different polymer chain topology of the linear PEG and the compact hyperbranched HbPG also played an important role in the biological activity. Therefore, in similar systems, the investigation of the colloidal properties is inevitable for the better understanding of the biological activity, which can reveal the structure-activity relationship of amphiphilic drug-peptide-polymer conjugates for efficient tumour targeting.
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Affiliation(s)
- Lilla Pethő
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös Loránd University, H-1117 Budapest, Pázmány Péter sétány 1/A, Hungary.
| | - György Kasza
- Polymer Chemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, H-1117 Budapest, Magyar tudósok körútja 2, Hungary.
| | - Eszter Lajkó
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, H-1089 Budapest, Nagyvárad tér 4, Hungary
| | - Orsolya Láng
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, H-1089 Budapest, Nagyvárad tér 4, Hungary
| | - László Kőhidai
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, H-1089 Budapest, Nagyvárad tér 4, Hungary
| | - Béla Iván
- Polymer Chemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, H-1117 Budapest, Magyar tudósok körútja 2, Hungary.
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös Loránd University, H-1117 Budapest, Pázmány Péter sétány 1/A, Hungary. and Eötvös Loránd University, Faculty of Science, Institute of Chemistry, H-1117 Budapest, Pázmány Péter sétány 1/A, Hungary
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22
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Tripodi AAP, Ranđelović I, Biri-Kovács B, Szeder B, Mező G, Tóvári J. In Vivo Tumor Growth Inhibition and Antiangiogenic Effect of Cyclic NGR Peptide-Daunorubicin Conjugates Developed for Targeted Drug Delivery. Pathol Oncol Res 2019; 26:1879-1892. [PMID: 31820302 PMCID: PMC7297862 DOI: 10.1007/s12253-019-00773-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 10/22/2019] [Indexed: 01/09/2023]
Abstract
Among various homing devices, peptides containing the NGR tripeptide sequence represent a promising approach to selectively recognize CD13 receptor isoforms on the surface of tumor cells. They have been successfully used for the delivery of various chemotherapeutic drugs to tumor vessels. Here, we report on the murine plasma stability, in vitro and in vivo antitumor activity of our recently described bioconjugates containing daunorubicin as payload. Furthermore, CD13 expression of KS Kaposi’s Sarcoma cell line and HT-29 human colon carcinoma cell line was investigated. Flow cytometry studies confirm the fast cellular uptake resulting in the rapid delivery of the active metabolite Dau = Aoa-Gly-OH to tumor cells. The increased in vitro antitumor effect might be explained by the faster rearrangement from NGR to isoDGR in case of conjugate 2 (Dau = Aoa-GFLGK(c[NleNGRE]-GG)-NH2) in comparison with conjugate 1 (Dau = Aoa-GFLGK(c[KNGRE]-GG)-NH2). Nevertheless, results indicated that both conjugates showed significant effect on inhibition of proliferation in the primary tumor and also on blood vessel formation making them a potential candidate for targeting angiogenesis processes in tumors where CD13 and integrins are involved.
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Affiliation(s)
- Andrea Angelo Pierluigi Tripodi
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Budapest, Hungary.,Faculty of Science, Institute of Chemistry, Eötvös Loránd University, Budapest, Hungary
| | - Ivan Ranđelović
- Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary
| | - Beáta Biri-Kovács
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Budapest, Hungary.,Faculty of Science, Institute of Chemistry, Eötvös Loránd University, Budapest, Hungary
| | - Bálint Szeder
- Research Centre for Natural Sciences, Institute of Enzymology, Hungarian Academy of Sciences, Budapest, Hungary
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Budapest, Hungary.,Faculty of Science, Institute of Chemistry, Eötvös Loránd University, Budapest, Hungary
| | - József Tóvári
- Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary.
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Ranđelović I, Schuster S, Kapuvári B, Fossati G, Steinkühler C, Mező G, Tóvári J. Improved In Vivo Anti-Tumor and Anti-Metastatic Effect of GnRH-III-Daunorubicin Analogs on Colorectal and Breast Carcinoma Bearing Mice. Int J Mol Sci 2019; 20:ijms20194763. [PMID: 31557968 PMCID: PMC6801585 DOI: 10.3390/ijms20194763] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 06/24/2019] [Revised: 09/10/2019] [Accepted: 09/20/2019] [Indexed: 12/19/2022] Open
Abstract
Among various homing devices, gonadotropin-releasing hormone-III (GnRH-III) peptide represents a suitable targeting moiety for drug delivery systems. The anti-tumor activity of the previously developed GnRH-III-[4Lys(Bu),8Lys(Dau=Aoa)] conjugate and the novel synthesized GnRH-III-[2ΔHis,3d-Tic,4Lys(Bu),8Lys(Dau=Aoa)] conjugate, containing the anti-cancer drug daunorubicin, were evaluated. Here, we demonstrate that both GnRH-III-Dau conjugates possess an efficient growth inhibitory effect on more than 20 cancer cell lines, whereby the biological activity is strongly connected to the expression of gonadotropin-releasing hormone receptors (GnRH-R). The novel conjugate showed a higher in vitro anti-proliferative activity and a higher uptake capacity. Moreover, the treatment with GnRH-III-Dau conjugates cause a significant in vivo tumor growth and metastases inhibitory effect in three different orthotopic models, including 4T1 mice and MDA-MB-231 human breast carcinoma, as well as HT-29 human colorectal cancer bearing BALB/s and SCID mice, while toxic side-effects were substantially reduced in comparison to the treatment with the free drug. These findings illustrate that our novel lead compound is a highly promising candidate for targeted tumor therapy in both colon cancer and metastatic breast cancer.
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Affiliation(s)
- Ivan Ranđelović
- Department of Experimental Pharmacology, National Institute of Oncology, 1122 Budapest, Hungary.
| | - Sabine Schuster
- Faculty of Science, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary.
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, 1117 Budapest, Hungary.
| | - Bence Kapuvári
- Department of Biochemistry, National Institute of Oncology, 1122 Budapest, Hungary.
| | - Gianluca Fossati
- Preclinical R&D, Italfarmaco SpA, 20092 Cinisello Balsamo (Milan), Italy.
| | | | - Gábor Mező
- Faculty of Science, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary.
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, 1117 Budapest, Hungary.
| | - József Tóvári
- Department of Experimental Pharmacology, National Institute of Oncology, 1122 Budapest, Hungary.
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Kiss K, Biri-Kovács B, Szabó R, Ranđelović I, Enyedi KN, Schlosser G, Orosz Á, Kapuvári B, Tóvári J, Mező G. Sequence modification of heptapeptide selected by phage display as homing device for HT-29 colon cancer cells to improve the anti-tumour activity of drug delivery systems. Eur J Med Chem 2019; 176:105-116. [PMID: 31100648 DOI: 10.1016/j.ejmech.2019.05.016] [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: 02/14/2019] [Revised: 02/28/2019] [Accepted: 05/06/2019] [Indexed: 11/16/2022]
Abstract
Development of peptide-based conjugates for targeted tumour therapy is a current research topic providing new possibilities in cancer treatment. In this study, VHLGYAT heptapeptide selected by phage display technique for HT-29 human colon cancer was investigated as homing peptide for drug delivery. Daunomycin was conjugated to the N-terminus of the peptide directly or through Cathepsin B cleavable spacers. Conjugates showed moderate in vitro cytostatic effect. Therefore, sequence modifications were performed by Ala-scan and positional scanning resulting in conjugates with much higher bioactivity. Conjugates in which Gly was replaced by amino acids with bulky apolaric side chains provided the best efficacy. The influence of the cellular uptake, stability and drug release on the anti-tumour activity was investigated. It was found that mainly the difference in the cellular uptake of the conjugates generated the distinct effect on cell viability. One of the most efficient conjugate Dau = Aoa-LRRY-VHLFYAT-NH2 showed tumour growth inhibition on orthotopically developed HT-29 colon cancer in mice with negligible toxic side effect compared to the free drug. We also indicate that this sequence is not specific to HT-29 cells, but it has a remarkable effect on many other cancer cells. Nevertheless, the Phe-containing conjugate was more active in all cases compared to the conjugate with the parent sequence. The literature data suggested that this sequence is highly overlapped with peptides that recognize Hsp70 membrane bound protein overexpressed in many types of tumours.
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Affiliation(s)
- Krisztina Kiss
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, 1117, Budapest, Hungary; Institute of Chemistry, Eötvös L. University, 1117, Budapest, Hungary
| | - Beáta Biri-Kovács
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, 1117, Budapest, Hungary; Institute of Chemistry, Eötvös L. University, 1117, Budapest, Hungary
| | - Rita Szabó
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, 1117, Budapest, Hungary
| | - Ivan Ranđelović
- Department of Experimental Pharmacology, National Institute of Oncology, 1122, Budapest, Hungary
| | - Kata Nóra Enyedi
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, 1117, Budapest, Hungary; Institute of Chemistry, Eötvös L. University, 1117, Budapest, Hungary
| | - Gitta Schlosser
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, 1117, Budapest, Hungary; Institute of Chemistry, Eötvös L. University, 1117, Budapest, Hungary
| | - Ádám Orosz
- Institute of Biophysics and Radiation Biology, Semmelweis University, 1444, Budapest, Hungary
| | - Bence Kapuvári
- Department of Experimental Pharmacology, National Institute of Oncology, 1122, Budapest, Hungary
| | - József Tóvári
- Department of Experimental Pharmacology, National Institute of Oncology, 1122, Budapest, Hungary
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, 1117, Budapest, Hungary; Institute of Chemistry, Eötvös L. University, 1117, Budapest, Hungary.
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25
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Schuster S, Biri-Kovács B, Szeder B, Buday L, Gardi J, Szabó Z, Halmos G, Mező G. Enhanced In Vitro Antitumor Activity of GnRH-III-Daunorubicin Bioconjugates Influenced by Sequence Modification. Pharmaceutics 2018; 10:E223. [PMID: 30423956 PMCID: PMC6320914 DOI: 10.3390/pharmaceutics10040223] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/01/2018] [Accepted: 11/06/2018] [Indexed: 12/21/2022] Open
Abstract
Receptors for gonadotropin releasing hormone (GnRH) are highly expressed in various human cancers including breast, ovarian, endometrial, prostate and colorectal cancer. Ligands like human GnRH-I or the sea lamprey analogue GnRH-III represent a promising approach for the development of efficient drug delivery systems for targeted tumor therapy. Here, we report on the synthesis and cytostatic effect of 14 oxime bond-linked daunorubicin GnRH-III conjugates containing a variety of unnatural amino acids within the peptide sequence. All compounds demonstrated a reduced cell viability in vitro on estrogen receptor α (ERα) positive and ERα negative cancer cells. The best candidate revealed an increased cancer cell growth inhibitory effect compared to our lead-compound GnRH-III-[⁴Lys(Bu),⁸Lys(Dau=Aoa)]. Flow cytometry and fluorescence microscopy studies showed that the cellular uptake of the novel conjugate is substantially improved leading to an accelerated delivery of the drug to its site of action. However, the release of the active drug-metabolite by lysosomal enzymes was not negatively affected by amino acid substitution, while the compound provided a high stability in human blood plasma. Receptor binding studies were carried out to ensure a high binding affinity of the new compound for the GnRH-receptor. It was demonstrated that GnRH-III-[²ΔHis,³d-Tic,⁴Lys(Bu),⁸Lys(Dau=Aoa)] is a highly potent and promising anticancer drug delivery system for targeted tumor therapy.
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Affiliation(s)
- Sabine Schuster
- Faculty of Science, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary.
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, 1117 Budapest, Hungary.
| | - Beáta Biri-Kovács
- Faculty of Science, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary.
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, 1117 Budapest, Hungary.
| | - Bálint Szeder
- Research Centre for Natural Sciences, Institute of Enzymology, Hungarian Academy of Sciences, 1117 Budapest, Hungary.
| | - László Buday
- Research Centre for Natural Sciences, Institute of Enzymology, Hungarian Academy of Sciences, 1117 Budapest, Hungary.
| | - János Gardi
- First Department of Internal Medicine, Faculty of Medicine, University of Szeged, 6720 Szeged, Hungary.
| | - Zsuzsanna Szabó
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary.
| | - Gábor Halmos
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary.
| | - Gábor Mező
- Faculty of Science, Institute of Chemistry, Eötvös Loránd University, 1117 Budapest, Hungary.
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, 1117 Budapest, Hungary.
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26
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Lajkó E, Spring S, Hegedüs R, Biri-Kovács B, Ingebrandt S, Mező G, Kőhidai L. Comparative cell biological study of in vitro antitumor and antimetastatic activity on melanoma cells of GnRH-III-containing conjugates modified with short-chain fatty acids. Beilstein J Org Chem 2018; 14:2495-2509. [PMID: 30344773 PMCID: PMC6178282 DOI: 10.3762/bjoc.14.226] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 03/03/2018] [Accepted: 08/30/2018] [Indexed: 01/10/2023] Open
Abstract
Background: Peptide hormone-based targeted tumor therapy is an approved strategy to selectively block the tumor growth and spreading. The gonadotropin-releasing hormone receptors (GnRH-R) overexpressed on different tumors (e.g., melanoma) could be utilized for drug-targeting by application of a GnRH analog as a carrier to deliver a covalently linked chemotherapeutic drug directly to the tumor cells. In this study our aim was (i) to analyze the effects of GnRH-drug conjugates on melanoma cell proliferation, adhesion and migration, (ii) to study the mechanisms of tumor cell responses, and (iii) to compare the activities of conjugates with the free drug. Results: In the tested conjugates, daunorubicin (Dau) was coupled to 8Lys of GnRH-III (GnRH-III(Dau=Aoa)) or its derivatives modified with 4Lys acylated with short-chain fatty acids (acetyl group in [4Lys(Ac)]-GnRH-III(Dau=Aoa) and butyryl group in [4Lys(Bu)]-GnRH-III(Dau=Aoa)). The uptake of conjugates by A2058 melanoma model cells proved to be time dependent. Impedance-based proliferation measurements with xCELLigence SP system showed that all conjugates elicited irreversible tumor growth inhibitory effects mediated via a phosphoinositide 3-kinase-dependent signaling. GnRH-III(Dau=Aoa) and [4Lys(Ac)]-GnRH-III(Dau=Aoa) were shown to be blockers of the cell cycle in the G2/M phase, while [4Lys(Bu)]-GnRH-III(Dau=Aoa) rather induced apoptosis. In short-term, the melanoma cell adhesion was significantly increased by all the tested conjugates. The modification of the GnRH-III in position 4 was accompanied by an increased cellular uptake, higher cytotoxic and cell adhesion inducer activity. By studying the cell movement of A2058 cells with a holographic microscope, it was found that the migratory behavior of melanoma cells was increased by [4Lys(Ac)]-GnRH-III(Dau=Aoa), while the GnRH-III(Dau=Aoa) and [4Lys(Bu)]-GnRH-III(Dau=Aoa) decreased this activity. Conclusion: Internalization and cytotoxicity of the conjugates showed that GnRH-III peptides could guard Dau to melanoma cells and promote antitumor activity. [4Lys(Bu)]-GnRH-III(Dau=Aoa) possessing the butyryl side chain acting as a “second drug” proved to be the best candidate for targeted tumor therapy due to its cytotoxicity and immobilizing effect on tumor cell spreading. The applicability of impedimetry and holographic phase imaging for characterizing cancer cell behavior and effects of targeted chemotherapeutics with small structural differences (e.g., length of the side chain in 4Lys) was also clearly suggested.
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Affiliation(s)
- Eszter Lajkó
- Department Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad tér 4., 1089 Budapest, Hungary
| | - Sarah Spring
- Department Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad tér 4., 1089 Budapest, Hungary.,Department of Informatics and Microsystem Technology, University of Applied Sciences Kaiserslautern, Amerikastraße 1, 66482 Zweibrücken, Germany
| | - Rózsa Hegedüs
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - Beáta Biri-Kovács
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary.,Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - Sven Ingebrandt
- Department of Informatics and Microsystem Technology, University of Applied Sciences Kaiserslautern, Amerikastraße 1, 66482 Zweibrücken, Germany
| | - Gábor Mező
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary.,Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - László Kőhidai
- Department Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad tér 4., 1089 Budapest, Hungary
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27
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Polgár L, Lajkó E, Soós P, Láng O, Manea M, Merkely B, Mező G, Kőhidai L. Drug targeting to decrease cardiotoxicity - determination of the cytotoxic effect of GnRH-based conjugates containing doxorubicin, daunorubicin and methotrexate on human cardiomyocytes and endothelial cells. Beilstein J Org Chem 2018; 14:1583-1594. [PMID: 30013686 PMCID: PMC6037002 DOI: 10.3762/bjoc.14.136] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 06/08/2018] [Indexed: 12/11/2022] Open
Abstract
Background: Cardiomyopathy induced by the chemotherapeutic agents doxorubicin and daunorubicin is a major limiting factor for their application in cancer therapy. Chemotactic drug targeting potentially increases the tumor selectivity of drugs and decreases their cardiotoxicity. Increased expression of gonadotropin-releasing hormone (GnRH) receptors on the surface of tumor cells has been reported. Thus, the attachment of the aforementioned chemotherapeutic drugs to GnRH-based peptides may result in compounds with increased therapeutic efficacy. The objective of the present study was to examine the cytotoxic effect of anticancer drug–GnRH-conjugates against two essential cardiovascular cell types, such as cardiomyocytes and endothelial cells. Sixteen different previously developed GnRH-conjugates containing doxorubicin, daunorubicin and methotrexate were investigated in this study. Their cytotoxicity was determined on primary human cardiac myocytes (HCM) and human umbilical vein endothelial cells (HUVEC) using the xCELLigence SP system, which measures impedance changes caused by adhering cells on golden electrode arrays placed at the bottom of the wells. Slopes of impedance–time curves were calculated and for the quantitative determination of cytotoxicity, the difference to the control was analysed. Results: Doxorubicin and daunorubicin exhibited a cytotoxic effect on both cell types, at the highest concentrations tested. Doxorubicin-based conjugates (AN-152, GnRH-III(Dox-O-glut), GnRH-III(Dox-glut-GFLG) and GnRH-III(Dox=Aoa-GFLG) showed the same cytotoxic effect on cardiomyocytes. Among the daunorubicin-based conjugates, [4Lys(Ac)]-GnRH-III(Dau=Aoa), GnRH-III(Dau=Aoa-YRRL), {GnRH-III(Dau=Aoa-YRRL-C)}2 and {[4N-MeSer]-GnRH-III(Dau-C)}2 had a significant but decreased cytotoxic effect, while the other conjugates – GnRH-III(Dau=Aoa), GnRH-III(Dau=Aoa-K(Dau=Aoa)), [4Lys(Dau=Aoa)]-GnRH-III(Dau=Aoa), GnRH-III(Dau=Aoa-GFLG), {GnRH-III(Dau-C)}2 and [4N-MeSer]-GnRH-III(Dau=Aoa) – exerted no cytotoxic effect on cardiomyocytes. Mixed conjugates containing methotrexate and daunorubicin – GnRH-III(Mtx-K(Dau=Aoa)) and [4Lys(Mtx)]-GnRH-III(Dau=Aoa) – showed no cytotoxic effect on cardiomyocytes, as well. Conclusion: Based on these results, anticancer drug–GnRH-based conjugates with no cytotoxic effect on cardiomyocytes were identified. In the future, these compounds could provide a more targeted antitumor therapy with no cardiotoxic adverse effects. Moreover, impedimetric cytotoxicity analysis could be a valuable technique to determine the effect of drugs on cardiomyocytes.
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Affiliation(s)
- Livia Polgár
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest, 1122, Hungary.,Chemotaxis Research Group, Department of Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad tér 4., Budapest, 1089, Hungary
| | - Eszter Lajkó
- Chemotaxis Research Group, Department of Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad tér 4., Budapest, 1089, Hungary
| | - Pál Soós
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest, 1122, Hungary
| | - Orsolya Láng
- Chemotaxis Research Group, Department of Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad tér 4., Budapest, 1089, Hungary
| | - Marilena Manea
- University of Konstanz, Department of Chemistry and Zukunftskolleg, Universitätsstrasse 10, 78467 Konstanz, Germany
| | - Béla Merkely
- Heart and Vascular Center, Semmelweis University, Városmajor u. 68., Budapest, 1122, Hungary
| | - Gábor Mező
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Pázmány P. stny 1/A Budapest, 1117, Hungary.,MTA-ELTE Research Group of Peptide Chemistry, Pázmány P. stny 1/A, Hungarian Academy of Science, Budapest, 1117, Hungary
| | - László Kőhidai
- Chemotaxis Research Group, Department of Genetics, Cell- and Immunobiology, Semmelweis University, Nagyvárad tér 4., Budapest, 1089, Hungary
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28
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López Rivas P, Ranđelović I, Raposo Moreira Dias A, Pina A, Arosio D, Tóvári J, Mező G, Dal Corso A, Pignataro L, Gennari C. Synthesis and Biological Evaluation of Paclitaxel Conjugates Involving Linkers Cleavable by Lysosomal Enzymes and αV
β3
-Integrin Ligands for Tumor Targeting. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800447] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Paula López Rivas
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milan Italy
| | - Ivan Ranđelović
- Department of Experimental Pharmacology; National Institute of Oncology; Ráth György u. 7-9. 1122 Budapest Hungary
| | | | - Arianna Pina
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milan Italy
| | - Daniela Arosio
- CNR; Istituto di Scienze e Tecnologie Molecolari (ISTM); Via C. Golgi, 19 20133 Milan Italy
| | - József Tóvári
- Department of Experimental Pharmacology; National Institute of Oncology; Ráth György u. 7-9. 1122 Budapest Hungary
| | - Gábor Mező
- Faculty of Science; Institute of Chemistry; Eötvös Loránd University; Pázmány Péter st. 1/A 1117 Budapest Hungary
| | - Alberto Dal Corso
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milan Italy
| | - Luca Pignataro
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milan Italy
| | - Cesare Gennari
- Dipartimento di Chimica; Università degli Studi di Milano; Via C. Golgi, 19 20133 Milan Italy
- CNR; Istituto di Scienze e Tecnologie Molecolari (ISTM); Via C. Golgi, 19 20133 Milan Italy
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29
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Kormos A, Koehler C, Fodor EA, Rutkai ZR, Martin ME, Mező G, Lemke EA, Kele P. Bistetrazine-Cyanines as Double-Clicking Fluorogenic Two-Point Binder or Crosslinker Probes. Chemistry 2018; 24:8841-8847. [PMID: 29676491 DOI: 10.1002/chem.201800910] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [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: 02/22/2018] [Indexed: 12/20/2022]
Abstract
Fluorogenic probes can be used to minimize the background fluorescence of unreacted and nonspecifically adsorbed reagents. The preceding years have brought substantial developments in the design and synthesis of bioorthogonally applicable fluorogenic systems mainly based on the quenching effects of azide and tetrazine moieties. The modulation power exerted by these bioorthogonal motifs typically becomes less efficient on more conjugated systems; that is, on probes with redshifted emission wavelength. To reach efficient quenching, that is, fluorogenicity, even in the red range of the spectrum, we present the synthesis, fluorogenic, and conjugation characterization of bistetrazine-cyanine probes with emission maxima between 600 and 620 nm. The probes can bind to genetically altered proteins harboring an 11-amino acid peptide tag with two appending cyclooctyne motifs. Moreover, we also demonstrate the use of these bistetrazines as fluorogenic, covalent cross-linkers between monocyclooctynylated proteins.
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Affiliation(s)
- Attila Kormos
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2., 1117, Budapest, Hungary
| | - Christine Koehler
- Departments of Biology and Chemistry, Pharmacy and Geosciences, Johannes Gutenberg-University Mainz, Johannes-von-Mullerweg 6, 55128, Mainz, Germany.,Institute of Molecular Biology (IMB), Ackermannweg 4, 55128, Mainz, Germany.,EMBL, Meyerhofstrasse 1, 69117, Heidelberg, Germany
| | - Eszter A Fodor
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2., 1117, Budapest, Hungary
| | - Zsófia R Rutkai
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2., 1117, Budapest, Hungary
| | - Madison E Martin
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2., 1117, Budapest, Hungary
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Pázmány Péter sétány 1a, 1117, Budapest, Hungary
| | - Edward A Lemke
- Departments of Biology and Chemistry, Pharmacy and Geosciences, Johannes Gutenberg-University Mainz, Johannes-von-Mullerweg 6, 55128, Mainz, Germany.,Institute of Molecular Biology (IMB), Ackermannweg 4, 55128, Mainz, Germany.,EMBL, Meyerhofstrasse 1, 69117, Heidelberg, Germany
| | - Péter Kele
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2., 1117, Budapest, Hungary
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30
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Vrettos EI, Mező G, Tzakos AG. On the design principles of peptide-drug conjugates for targeted drug delivery to the malignant tumor site. Beilstein J Org Chem 2018; 14:930-954. [PMID: 29765474 PMCID: PMC5942387 DOI: 10.3762/bjoc.14.80] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [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: 01/29/2018] [Accepted: 04/04/2018] [Indexed: 12/30/2022] Open
Abstract
Cancer is the second leading cause of death affecting nearly one in two people, and the appearance of new cases is projected to rise by >70% by 2030. To effectively combat the menace of cancer, a variety of strategies have been exploited. Among them, the development of peptide–drug conjugates (PDCs) is considered as an inextricable part of this armamentarium and is continuously explored as a viable approach to target malignant tumors. The general architecture of PDCs consists of three building blocks: the tumor-homing peptide, the cytotoxic agent and the biodegradable connecting linker. The aim of the current review is to provide a spherical perspective on the basic principles governing PDCs, as also the methodology to construct them. We aim to offer basic and integral knowledge on the rational design towards the construction of PDCs through analyzing each building block, as also to highlight the overall progress of this rapidly growing field. Therefore, we focus on several intriguing examples from the recent literature, including important PDCs that have progressed to phase III clinical trials. Last, we address possible difficulties that may emerge during the synthesis of PDCs, as also report ways to overcome them.
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Affiliation(s)
- Eirinaios I Vrettos
- University of Ioannina, Department of Chemistry, Section of Organic Chemistry and Biochemistry, Ioannina, GR-45110, Greece
| | - Gábor Mező
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Pázmány P. stny. 1/A, H-1117 Budapest, Hungary.,MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Pázmány P. stny. 1/A, H-1117 Budapest, Hungary
| | - Andreas G Tzakos
- University of Ioannina, Department of Chemistry, Section of Organic Chemistry and Biochemistry, Ioannina, GR-45110, Greece
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31
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Tripodi AAP, Tóth S, Enyedi KN, Schlosser G, Szakács G, Mező G. Development of novel cyclic NGR peptide-daunomycin conjugates with dual targeting property. Beilstein J Org Chem 2018; 14:911-918. [PMID: 29765472 PMCID: PMC5942373 DOI: 10.3762/bjoc.14.78] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 01/13/2018] [Accepted: 04/13/2018] [Indexed: 01/03/2023] Open
Abstract
Cyclic NGR peptides as homing devices are good candidates for the development of drug conjugates for targeted tumor therapy. In our previous study we reported that the Dau=Aoa-GFLGK(c[KNGRE]-GG-)-NH2 conjugate has a significant antitumor activity against both CD13+ HT-1080 human fibrosarcoma and CD13- but integrin positive HT-29 human colon adenocarcinoma cells. However, it seems that the free ε-amino group of Lys in the cycle is not necessary for the biological activity. Therefore, we developed novel cyclic NGR peptide-daunomycin conjugates in which Lys was replaced by different amino acids (Ala, Leu, Nle, Pro, Ser). The exchange of the Lys residue in the cycle simplified the cyclization step and resulted in a higher yield. The new conjugates showed lower chemostability against deamidation of Asn than the control compound, thus they had lower selectivity to CD13+ cells. However, the cellular uptake and cytotoxic effect of Dau=Aoa-GFLGK(c[NleNGRE]-GG-)-NH2 was higher in comparison to the control especially on HT-29 cells. Therefore, this conjugate is more suitable for drug targeting with dual targeting property.
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Affiliation(s)
- Andrea Angelo Pierluigi Tripodi
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Pázmány P. stny. 1/A, H-1117 Budapest, Hungary.,MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Pázmány P. stny. 1/A, H-1117 Budapest, Hungary
| | - Szilárd Tóth
- Institute of Enzimology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary
| | - Kata Nóra Enyedi
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Pázmány P. stny. 1/A, H-1117 Budapest, Hungary.,MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Pázmány P. stny. 1/A, H-1117 Budapest, Hungary
| | - Gitta Schlosser
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Pázmány P. stny. 1/A, H-1117 Budapest, Hungary.,MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Pázmány P. stny. 1/A, H-1117 Budapest, Hungary
| | - Gergely Szakács
- Institute of Enzimology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary.,Institute of Cancer Research, Medical University Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | - Gábor Mező
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Pázmány P. stny. 1/A, H-1117 Budapest, Hungary.,MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Pázmány P. stny. 1/A, H-1117 Budapest, Hungary
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32
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Schuster S, Biri-Kovács B, Szeder B, Farkas V, Buday L, Szabó Z, Halmos G, Mező G. Synthesis and in vitro biochemical evaluation of oxime bond-linked daunorubicin-GnRH-III conjugates developed for targeted drug delivery. Beilstein J Org Chem 2018; 14:756-771. [PMID: 29719573 PMCID: PMC5905287 DOI: 10.3762/bjoc.14.64] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 01/12/2018] [Accepted: 03/15/2018] [Indexed: 12/18/2022] Open
Abstract
Gonadotropin releasing hormone-III (GnRH-III), a native isoform of the human GnRH isolated from sea lamprey, specifically binds to GnRH receptors on cancer cells enabling its application as targeting moieties for anticancer drugs. Recently, we reported on the identification of a novel daunorubicin–GnRH-III conjugate (GnRH-III–[4Lys(Bu), 8Lys(Dau=Aoa)] with efficient in vitro and in vivo antitumor activity. To get a deeper insight into the mechanism of action of our lead compound, the cellular uptake was followed by confocal laser scanning microscopy. Hereby, the drug daunorubicin could be visualized in different subcellular compartments by following the localization of the drug in a time-dependent manner. Colocalization studies were carried out to prove the presence of the drug in lysosomes (early stage) and on its site of action (nuclei after 10 min). Additional flow cytometry studies demonstrated that the cellular uptake of the bioconjugate was inhibited in the presence of the competitive ligand triptorelin indicating a receptor-mediated pathway. For comparative purpose, six novel daunorubicin–GnRH-III bioconjugates have been synthesized and biochemically characterized in which 6Asp was replaced by D-Asp, D-Glu and D-Trp. In addition to the analysis of the in vitro cytostatic effect and cellular uptake, receptor binding studies with 125I-triptorelin as radiotracer and degradation of the GnRH-III conjugates in the presence of rat liver lysosomal homogenate have been performed. All derivatives showed high binding affinities to GnRH receptors and displayed in vitro cytostatic effects on HT-29 and MCF-7 cancer cells with IC50 values in a low micromolar range. Moreover, we found that the release of the active drug metabolite and the cellular uptake of the bioconjugates were strongly affected by the amino acid exchange which in turn had an impact on the antitumor activity of the bioconjugates.
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Affiliation(s)
- Sabine Schuster
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, 1117 Budapest, Hungary.,Institute of Chemistry, Eötvös L. University, 1117 Budapest, Hungary
| | - Beáta Biri-Kovács
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, 1117 Budapest, Hungary.,Institute of Chemistry, Eötvös L. University, 1117 Budapest, Hungary
| | - Bálint Szeder
- Research Centre for Natural Sciences, Institute of Enzymology, Hungarian Academy of Sciences, 1117 Budapest, Hungary
| | - Viktor Farkas
- MTA-ELTE Protein Modelling Research Group, Hungarian Academy of Sciences, Eötvös L. University, 1117 Budapest, Hungary
| | - László Buday
- Research Centre for Natural Sciences, Institute of Enzymology, Hungarian Academy of Sciences, 1117 Budapest, Hungary
| | - Zsuzsanna Szabó
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary
| | - Gábor Halmos
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, 1117 Budapest, Hungary.,Institute of Chemistry, Eötvös L. University, 1117 Budapest, Hungary
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33
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Abstract
Peptides containing the asparagine-glycine-arginine (NGR) motif are recognized by CD13/aminopeptidase N (APN) receptor isoforms that are selectively overexpressed in tumor neovasculature. Spontaneous decomposition of NGR peptides can result in isoAsp derivatives, which are recognized by RGD-binding integrins that are essential for tumor metastasis. Peptides binding to CD13 and RGD-binding integrins provide tumor-homing, which can be exploited for dual targeted delivery of anticancer drugs. We synthesized small cyclic NGR peptide-daunomycin conjugates using NGR peptides of varying stability (c[KNGRE]-NH2, Ac-c[CNGRC]-NH2 and the thioether bond containing c[CH2-CO-NGRC]-NH2, c[CH2-CO-KNGRC]-NH2). The cytotoxic effect of the novel cyclic NGR peptide-Dau conjugates were examined in vitro on CD13 positive HT-1080 (human fibrosarcoma) and CD13 negative HT-29 (human colon adenocarcinoma) cell lines. Our results confirm the influence of structure on the antitumor activity and dual acting properties of the conjugates. Attachment of the drug through an enzyme-labile spacer to the C-terminus of cyclic NGR peptide resulted in higher antitumor activity on both CD13 positive and negative cells as compared to the branching versions.
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Affiliation(s)
- Kata Nóra Enyedi
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Pázmány P. sétány 1/A, Budapest, Hungary
| | - Szilárd Tóth
- Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, Budapest, Hungary
| | - Gergely Szakács
- Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, Budapest, Hungary
- Institute of Cancer Research, Medical University Vienna, Borschkegasse 8a, Vienna, Austria
| | - Gábor Mező
- Eötvös Loránd University, Faculty of Science, Institute of Chemistry, Pázmány P. sétány 1/A, Budapest, Hungary
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Demeter O, Kormos A, Koehler C, Mező G, Németh K, Kozma E, Takács LB, Lemke EA, Kele P. Bisazide Cyanine Dyes as Fluorogenic Probes for Bis-Cyclooctynylated Peptide Tags and as Fluorogenic Cross-Linkers of Cyclooctynylated Proteins. Bioconjug Chem 2017; 28:1552-1559. [PMID: 28441009 DOI: 10.1021/acs.bioconjchem.7b00178] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein we present the synthesis and fluorogenic characterization of a series of double-quenched bisazide cyanine probes with emission maxima between 565 and 580 nm that can participate in covalent, two-point binding bioorthogonal tagging schemes in combination with bis-cyclooctynylated peptides. Compared to other fluorogenic cyanines, these double-quenched systems showed remarkable fluorescence intensity increase upon formation of cyclic dye-peptide conjugates. Furthermore, we also demonstrated that these bisazides are useful fluorogenic cross-linking platforms that are able to form a covalent linkage between monocyclooctynylated proteins.
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Affiliation(s)
- Orsolya Demeter
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences , Magyar tudósok krt. 2, H-1117, Budapest, Hungary
| | - Attila Kormos
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences , Magyar tudósok krt. 2, H-1117, Budapest, Hungary
| | - Christine Koehler
- Structural and Computational Biology Unit, Cell Biology and Biophysics Unit, European Molecular Biology Laboratory , Meyerhofstrasse 1, D-69117, Heidelberg, Germany
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences , Pázmány Péter sétány 1a, H-1117, Budapest, Hungary
| | - Krisztina Németh
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences , Magyar tudósok krt. 2, H-1117, Budapest, Hungary
| | - Eszter Kozma
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences , Magyar tudósok krt. 2, H-1117, Budapest, Hungary
| | - Levente B Takács
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences , Magyar tudósok krt. 2, H-1117, Budapest, Hungary
| | - Edward A Lemke
- Structural and Computational Biology Unit, Cell Biology and Biophysics Unit, European Molecular Biology Laboratory , Meyerhofstrasse 1, D-69117, Heidelberg, Germany
| | - Péter Kele
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences , Magyar tudósok krt. 2, H-1117, Budapest, Hungary
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35
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Szabó R, Sebestyén M, Kóczán G, Orosz Á, Mező G, Hudecz F. Cellular Uptake Mechanism of Cationic Branched Polypeptides with Poly[l-Lys] Backbone. ACS Comb Sci 2017; 19:246-254. [PMID: 28276242 DOI: 10.1021/acscombsci.6b00133] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Cationic macromolecular carriers can be effective carriers for small molecular compounds, drugs, epitopes, or nucleic acids. Polylysine-based polymeric branched polypeptides have been systematically studied on the level of cells and organisms as well. In the present study, we report our findings on the cellular uptake characteristics of nine structurally related polylysine-based polypeptides with cationic side chains composed of (i) single amino acid (poly[Lys(Xi)], XiK) or (ii) oligo[dl-alanine] (poly[Lys(dl-Alam)], AK) or (iii) oligo[dl-alanine] with an additional amino acid (X) at the terminal position (poly[Lys(Xi-dl-Alam)] (XAK)) or (iv) at the position next to the polylysine backbone (poly[Lys(dl-Alam-Xi)] (AXK)). In vitro cytotoxicity and cellular uptake were characterized on HT-29 human colon carcinoma and HepG2 human hepatocarcinoma cell lines. Data indicate that the polycationic polypeptides studied are essentially nontoxic in the concentration range studied, and their uptake is very much dependent on the side chain structure (length, identity of amino acid X, and distance between the terminal positive charges) and also on the cell lines. Our findings in uptake inhibition studies suggest that predominantly macropinocytosis and caveole/lipid raft mediated endocytosis are involved. The efficacy of their internalization is markedly influenced by the hydrophobicity and charge properties of the amino acid X. Interestingly, the uptake properties of the these polypeptides show certain similarities to the entry pathways of several cell penetrating peptides.
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Affiliation(s)
- Rita Szabó
- MTA-ELTE Research Group of Peptide Chemistry, Pázmány Péter st. 1/A, 1117 Budapest, Hungary
| | - Mónika Sebestyén
- MTA-ELTE Research Group of Peptide Chemistry, Pázmány Péter st. 1/A, 1117 Budapest, Hungary
| | - György Kóczán
- MTA-ELTE Research Group of Peptide Chemistry, Pázmány Péter st. 1/A, 1117 Budapest, Hungary
| | - Ádám Orosz
- Department
of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó
u. 37-47, 1094 Budapest, Hungary
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Pázmány Péter st. 1/A, 1117 Budapest, Hungary
| | - Ferenc Hudecz
- MTA-ELTE Research Group of Peptide Chemistry, Pázmány Péter st. 1/A, 1117 Budapest, Hungary
- Department
of Organic Chemistry, Eötvös L. University, Pázmány
Péter st. 1/A, 1117 Budapest, Hungary
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36
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Murányi J, Varga A, Gurbi B, Gyulavári P, Mező G, Vántus T. In Vitro Imaging and Quantification of the Drug Targeting Efficiency of Fluorescently Labeled GnRH Analogues. J Vis Exp 2017. [PMID: 28362408 DOI: 10.3791/55529] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
GnRH analogues are effective targeting moieties and able to deliver anticancer agents selectively into malignant tumor cells which highly express GnRH receptors. However, the quantitative analysis of GnRH analogues' cellular uptake and the investigated cell types in GnRH-based drug delivery systems are currently limited. Previously introduced, selectively labeled fluorescent GnRH I, -II and -III derivatives provide great detectability, and they have suitable chemical properties for reproducible and robust experiments. We also found that the appropriate up-to-date methods with these labeled GnRH analogues could offer novel information about the GnRH-based drug delivery systems. This manuscript introduces some simple and fast experiments regarding the cellular uptake of [D-Lys6(FITC)]-GnRH-I, [D-Lys6(FITC)]-GnRH-II and [Lys8(FITC)]-GnRH-III on the EBC-1 (lung), the BxPC-3 (pancreas) and on the Detroit-562- (pharynx) malignant tumor cells. In parallel with these GnRH-FITC conjugates, the cell surface level of GnRH-I receptors was also examined on these cell lines before and after the GnRH treatment by confocal laser scanning microscopy. The cellular uptake of GnRH-FITC conjugates was quantified by fluorescence-activated cell sorting. In these experiments minor differences among GnRH analogues and major differences among cell types was observed. The significant differences among cell lines are correlated with their distinct level of cell surface GnRH-I receptors. The introduced experiments contain practical methods to visualize, quantify and compare the uptake efficiency of GnRH-FITC conjugates in a time- and concentration-dependent manner on various adherent cell cultures. These results could predict the drug targeting efficiency of GnRH conjugates on the given cell culture, and offer a good basis for further experiments in the examination of GnRH-based drug delivery systems.
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Affiliation(s)
- József Murányi
- MTA-SE Pathobiochemistry Research Group, Semmelweis University; Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University;
| | - Attila Varga
- MTA-SE Pathobiochemistry Research Group, Semmelweis University
| | - Bianka Gurbi
- MTA-SE Pathobiochemistry Research Group, Semmelweis University
| | - Pál Gyulavári
- MTA-SE Pathobiochemistry Research Group, Semmelweis University
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös Loránd University
| | - Tibor Vántus
- Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University
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37
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Murányi J, Gyulavári P, Varga A, Bökönyi G, Tanai H, Vántus T, Pap D, Ludányi K, Mező G, Kéri G. Synthesis, characterization and systematic comparison of FITC-labelled GnRH-I, -II and -III analogues on various tumour cells. J Pept Sci 2017; 22:552-60. [PMID: 27443981 DOI: 10.1002/psc.2904] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 06/03/2016] [Accepted: 06/06/2016] [Indexed: 11/05/2022]
Abstract
Targeted tumour therapy is the focus of recent cancer research. Gonadotropin-releasing hormone (GnRH) analogues are able to deliver anticancer agents selectively into tumour cells, which highly express GnRH receptors. However, the effectiveness of different analogues as targeting moiety in drug delivery systems is rarely compared, and the investigated types of cancer are also limited. Therefore, we prepared selectively labelled, fluorescent derivatives of GnRH-I, -II and -III analogues, which were successfully used for drug targeting. In this manuscript, we investigated these analogues' solubility, stability and passive membrane permeability and compared their cellular uptake by various cancer cells. We found that these labelled GnRH conjugates provide great detectability, without undesired cytotoxicity and passive membrane permeability. The introduced experiments with these conjugates proved their reliable tracking, quantification and comparison. Cellular uptake efficiency was studied on human breast, colon, pancreas and prostate cancer cells (MCF-7, HT-29, BxPC-3, LNCaP) and on dog kidney cells (Madin-Darby canine kidney). Each of the three conjugates was taken up by GnRH-I receptor-expressing cells, but the different cells preferred different analogues. Furthermore, we demonstrated for the first time the high cell surface expression of GnRH-I receptors and the effective cellular uptake of GnRH analogues on human pharynx tumour (Detroit-562) cells. In summary, our presented results detail that the introduced conjugates could be innovative tools for the examination of the GnRH-based drug delivery systems on various cells and offer novel information about these peptides. Copyright © 2016 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- József Murányi
- MTA-SE Pathobiochemistry Research Group, Tűzoltó St. 37-47, H1094, Budapest, Hungary.,Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University, Tűzoltó St. 37-47, H1094, Budapest, Hungary
| | - Pál Gyulavári
- MTA-SE Pathobiochemistry Research Group, Tűzoltó St. 37-47, H1094, Budapest, Hungary
| | - Attila Varga
- MTA-SE Pathobiochemistry Research Group, Tűzoltó St. 37-47, H1094, Budapest, Hungary
| | - Györgyi Bökönyi
- MTA-SE Pathobiochemistry Research Group, Tűzoltó St. 37-47, H1094, Budapest, Hungary
| | - Henriette Tanai
- MTA-SE Pathobiochemistry Research Group, Tűzoltó St. 37-47, H1094, Budapest, Hungary
| | - Tibor Vántus
- Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University, Tűzoltó St. 37-47, H1094, Budapest, Hungary
| | - Domonkos Pap
- 1st Department of Pediatrics, Semmelweis University, Bókay János St. 53-54, H1083, Budapest, Hungary
| | - Krisztina Ludányi
- Department of Pharmaceutics, Semmelweis University, Hőgyes Endre St. 7, H1092, Budapest, Hungary
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, Pázmány Péter sétány 1/A, H1518, Budapest, Hungary
| | - György Kéri
- MTA-SE Pathobiochemistry Research Group, Tűzoltó St. 37-47, H1094, Budapest, Hungary.,Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University, Tűzoltó St. 37-47, H1094, Budapest, Hungary
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38
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Hegedüs R, Pauschert A, Orbán E, Szabó I, Andreu D, Marquardt A, Mező G, Manea M. Modification of daunorubicin-GnRH-III bioconjugates with oligoethylene glycol derivatives to improve solubility and bioavailability for targeted cancer chemotherapy. Biopolymers 2016; 104:167-77. [PMID: 25753049 DOI: 10.1002/bip.22629] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 01/06/2015] [Revised: 02/18/2015] [Accepted: 02/24/2015] [Indexed: 12/16/2022]
Abstract
Daunorubicin-GnRH-III bioconjugates have recently been developed as drug delivery systems with potential applications in targeted cancer chemotherapy. In order to improve their biochemical properties, several strategies have been pursued: (1) incorporation of an enzymatic cleavable spacer between the anticancer drug and the peptide-based targeting moiety, (2) peptide modification by short chain fatty acids, or (3) attachment of two anticancer drugs to the same GnRH-III derivative. Although these modifications led to more potent bioconjugates, a decrease in their solubility was observed. Here we report on the design, synthesis and biochemical characterization of daunorubicin-GnRH-III bioconjugates with increased solubility, which could be achieved by incorporating oligoethylene glycol-based spacers in their structure. First, we have evaluated the effect of an oligoethylene glycol-based spacer on the solubility, enzymatic stability/degradation, cellular uptake, and in vitro cytostatic effect of a bioconjugate containing only one daunorubicin attached through a GFLG tetrapeptide spacer to the GnRH-III targeting moiety. Thereafter, more complex compounds containing two copies of daunorubicin, GFLG spacers as well as Lys(nBu) in position 4 of GnRH-III were synthesized and biochemically characterized. Our results indicated that all synthesized oligoethylene glycol-containing bioconjugates had higher solubility in cell culture medium than the unmodified analogs. They were degraded in the presence of rat liver lysosomal homogenate leading to the formation of small drug containing metabolites. In the case of bioconjugates containing two copies of daunorubicin, the incorporation of oligoethylene glycol-based spacers led to increased in vitro cytostatic effect on MCF-7 human breast cancer cells.
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Affiliation(s)
- Rózsa Hegedüs
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös L. University, 1117, Budapest, Hungary
| | - Aline Pauschert
- Department of Chemistry, University of Konstanz, 78457, Konstanz, Germany
| | - Erika Orbán
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös L. University, 1117, Budapest, Hungary
| | - Ildikó Szabó
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös L. University, 1117, Budapest, Hungary
| | - David Andreu
- Department of Experimental and Health Sciences, Pompeu Fabra University, 08003, Barcelona, Spain
| | - Andreas Marquardt
- Proteomics Facility, Department of Biology, University of Konstanz, 78457, Konstanz, Germany
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös L. University, 1117, Budapest, Hungary
| | - Marilena Manea
- Department of Chemistry, University of Konstanz, 78457, Konstanz, Germany.,Zukunftskolleg, University of Konstanz, 78457, Konstanz, Germany
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39
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Kapuvári B, Hegedüs R, Schulcz Á, Manea M, Tóvári J, Gacs A, Vincze B, Mező G. Improved in vivo antitumor effect of a daunorubicin - GnRH-III bioconjugate modified by apoptosis inducing agent butyric acid on colorectal carcinoma bearing mice. Invest New Drugs 2016; 34:416-23. [PMID: 27146514 PMCID: PMC4919375 DOI: 10.1007/s10637-016-0354-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 02/19/2016] [Accepted: 04/12/2016] [Indexed: 12/01/2022]
Abstract
Compared to classical chemotherapy, peptide-based drug targeting is a promising therapeutic approach for cancer, which can provide increased selectivity and decreased side effects to anticancer drugs. Among various homing devices, gonadotropin-releasing hormone-III (GnRH-III) peptide represents a suitable targeting moiety, in particular in the treatment of hormone independent tumors that highly express GnRH receptors (e.g. colon carcinoma). We have previously shown that GnRH-III[4Lys(Ac),8Lys(Dau = Aoa)] bioconjugate, in which daunorubicin was attached via oxime linkage to the 8Lys of a GnRH-III derivative, exerted significant in vivo antitumor effect on subcutaneously developed HT-29 colon tumor. In contrast, results of the study reported here indicated that this compound was not active on an orthotopically developed tumor. However, if Lys in position 4 was acylated with butyric acid instead of acetic acid, the resulting bioconjugate GnRH-III[4Lys(Bu),8Lys(Dau = Aoa)] had significant tumor growth inhibitory effect. Furthermore, it prevented tumor neovascularization, without detectable side effects. Nevertheless, the development of metastases could not be inhibited by the bioconjugate; therefore, its application in combination with a metastasis preventive agent might be necessary in order to achieve complete tumor remission. In spite of this result, the treatment with GnRH-III[4Lys(Bu),8Lys(Dau = Aoa)] bioconjugate proved to have significant benefits over the administration of free daunorubicin, which was used at the maximum tolerated dose.
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Affiliation(s)
| | - Rózsa Hegedüs
- MTA-ELTE, Research Group of Peptide Chemistry, Pázmány P. stny. 1/A, Budapest, 1117, Hungary
| | - Ákos Schulcz
- National Institute of Oncology, Budapest, 1122, Hungary
| | - Marilena Manea
- Department of Chemistry and Zukunftskolleg, University of Konstanz, 78457, Constance, Germany
| | - József Tóvári
- National Institute of Oncology, Budapest, 1122, Hungary
| | | | | | - Gábor Mező
- MTA-ELTE, Research Group of Peptide Chemistry, Pázmány P. stny. 1/A, Budapest, 1117, Hungary.
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40
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Demeter O, Fodor EA, Kállay M, Mező G, Németh K, Szabó PT, Kele P. A Double-Clicking Bis-Azide Fluorogenic Dye for Bioorthogonal Self-Labeling Peptide Tags. Chemistry 2016; 22:6382-8. [DOI: 10.1002/chem.201504939] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Orsolya Demeter
- Chemical Biology Research Group; Institute of Organic Chemistry; Research Centre for Natural Sciences; Hungarian Academy of Sciences; Magyar tudósok krt. 2 1117 Budapest Hungary
| | - Eszter A. Fodor
- Chemical Biology Research Group; Institute of Organic Chemistry; Research Centre for Natural Sciences; Hungarian Academy of Sciences; Magyar tudósok krt. 2 1117 Budapest Hungary
| | - Mihály Kállay
- MTA-BME “Lendület” Quantum Chemistry Research Group; Department of Physical Chemistry and Materials Science; Budapest University of Technology and Economics; P.O. Box 91 1521 Budapest Hungary
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry; Hungarian Academy of Sciences; Pázmány Péter sétány 1 a 1117 Budapest Hungary
| | - Krisztina Németh
- Chemical Biology Research Group; Institute of Organic Chemistry; Research Centre for Natural Sciences; Hungarian Academy of Sciences; Magyar tudósok krt. 2 1117 Budapest Hungary
| | - Pál T. Szabó
- MS Metabolomics Research Group; Institute of Organic Chemistry; Research Centre for Natural Sciences; Hungarian Academy of Sciences; Magyar tudósok krt. 2 1117 Budapest Hungary)
| | - Péter Kele
- Chemical Biology Research Group; Institute of Organic Chemistry; Research Centre for Natural Sciences; Hungarian Academy of Sciences; Magyar tudósok krt. 2 1117 Budapest Hungary
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41
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Orosz Á, Horváth P, Mező G, Csík G. Structural Features of DNA Interaction with Amino Acid Conjugated Daunorubicin Derivatives. Biophys J 2016. [DOI: 10.1016/j.bpj.2015.11.2182] [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: 11/29/2022] Open
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42
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Sóti PL, Nagy ZK, Serneels G, Vajna B, Farkas A, Van der Gucht F, Fekete P, Vigh T, Wagner I, Balogh A, Pataki H, Mező G, Marosi G. Preparation and comparison of spray dried and electrospun bioresorbable drug delivery systems. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.03.035] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Szabó I, Bősze S, Orbán E, Sipos É, Halmos G, Kovács M, Mező G. Comparative in vitro biological evaluation of daunorubicin containing GnRH-I and GnRH-II conjugates developed for tumor targeting. J Pept Sci 2015; 21:426-35. [PMID: 25908176 DOI: 10.1002/psc.2775] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 09/30/2014] [Revised: 02/27/2015] [Accepted: 03/04/2015] [Indexed: 12/22/2022]
Abstract
Hormone based drug targeting is a promising tool for selective tumor therapy. In this study, synthesis and systematic comparative biological evaluation of novel drug containing analogs of gonadotropin-releasing hormone GnRH-I and GnRH-II is reported demonstrating their suitability for tumor targeting. The cytotoxic conjugates were prepared by the attachment of the chemotherapeutical agent daunorubicin (Dau) to GnRH analogs directly or through an enzyme-labile spacer with oxime linkage. All conjugates were found to be proteolytically stable under circumstances applied in biological assays. Both GnRH-I and GnRH-II were able to bind similarly to high-affinity GnRH-I receptors on human pituitary and human prostate cancer cells. The in vitro long-term cytotoxic effect of the conjugates was comparable with that of the free drug in human breast and colon cancer cell lines. Furthermore, a concentration-dependent cellular uptake profile was observed. The in vitro apoptotic effect of the compounds was evaluated by flow cytometry analysis using annexin-V. Our results show that both the GnRH-I and the GnRH-II based analogs might be applied for targeted tumor therapy.
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Affiliation(s)
- Ildikó Szabó
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, 1117, Budapest, Hungary
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Enyedi KN, Czajlik A, Knapp K, Láng A, Majer Z, Lajkó E, Kőhidai L, Perczel A, Mező G. Development of cyclic NGR peptides with thioether linkage: structure and dynamics determining deamidation and bioactivity. J Med Chem 2015; 58:1806-17. [PMID: 25646854 DOI: 10.1021/jm501630j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
NGR peptides that recognize CD13 receptors in tumor neovasculature are of high interest, in particular due to their potential applications in drug targeting. Here we report the synthesis and structural analysis of novel thioether bond-linked cyclic NGR peptides. Our results show that their chemostability (resistance against spontaneous decomposition forming isoAsp and Asp derivatives) strongly depends on both sample handling conditions and structural properties. A significant correlation was found between chemostability and structural measures, such as NH(Gly)-CO(Asn-sc) distances. The side-chain orientation of Asn is a key determining factor; if it is turned away from HN(Gly), the chemostability increases. Structure stabilizing factors (e.g., H-bonds) lower their internal dynamics, and thus biomolecules become even more resistant against spontaneous decomposition. The effect of cyclic NGR peptides on cell adhesion was examined in A2058 melanoma cell lines. It was found that some of the investigated peptides gradually increased cell adhesion with long-term characteristics, indicating time-dependent formation of integrin binding isoAsp derivatives that are responsible for the adhesion-inducing effect.
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Affiliation(s)
- Kata Nóra Enyedi
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences,▽MTA-ELTE Protein Modelling Research Group, Hungarian Academy of Sciences, ∥Laboratory for Chiroptical Structure Analysis, Institute of Chemistry, and ⊥Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd University , Pázmány P. sétány 1/A, 1117 Budapest, Hungary
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45
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Horváti K, Bacsa B, Szabó N, Fodor K, Balka G, Rusvai M, Kiss É, Mező G, Grolmusz V, Vértessy B, Hudecz F, Bősze S. Antimycobacterial activity of peptide conjugate of pyridopyrimidine derivative against Mycobacterium tuberculosis in a series of in vitro and in vivo models. Tuberculosis (Edinb) 2015; 95 Suppl 1:S207-11. [PMID: 25728610 DOI: 10.1016/j.tube.2015.02.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
New pyridopyrimidine derivatives were defined using a novel HTS in silico docking method (FRIGATE). The target protein was a dUTPase enzyme (EC 3.6.1.23; Rv2697) which plays a key role in nucleotide biosynthesis of Mycobacterium tuberculosis (Mtb). Top hit molecules were assayed in vitro for their antimycobacterial effect on Mtb H37Rv culture. In order to enhance the cellular uptake rate, the TB820 compound was conjugated to a peptid-based carrier and a nanoparticle type delivery system (polylactide-co-glycolide, PLGA) was applied. The conjugate had relevance to in vitro antitubercular activity with low in vitro and in vivo toxicity. In a Mtb H37Rv infected guinea pig model the in vivo efficacy of orally administrated PLGA encapsulated compound was proven: animals maintained a constant weight gain and no external clinical signs of tuberculosis were observed. All tissue homogenates from lung, liver and kidney were found negative for Mtb, and diagnostic autopsy showed that no significant malformations on the tissues occurred.
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Affiliation(s)
- Kata Horváti
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, Budapest, Hungary
| | - Bernadett Bacsa
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, Budapest, Hungary
| | - Nóra Szabó
- Laboratory of Bacteriology, Korányi National Institute for Tuberculosis and Respiratory Medicine, Budapest, Hungary
| | - Kinga Fodor
- Department of State Veterinary Medicine and Agricultural Economics, Faculty of Veterinary Science, Szent István University, Budapest, Hungary
| | - Gyula Balka
- Department of Pathology and Forensic Veterinary Medicine, Faculty of Veterinary Science, Szent István University, Budapest, Hungary
| | - Miklós Rusvai
- Department of Pathology and Forensic Veterinary Medicine, Faculty of Veterinary Science, Szent István University, Budapest, Hungary
| | - Éva Kiss
- Laboratory of Interfaces and Nanostructures, Eötvös L. University, Budapest, Hungary
| | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, Budapest, Hungary
| | - Vince Grolmusz
- Protein Information Technology Group, Eötvös L. University, Budapest, Hungary
| | - Beáta Vértessy
- Institute of Enzimology, Hungarian Academy of Science, Budapest, Hungary
| | - Ferenc Hudecz
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, Budapest, Hungary; Department of Organic Chemistry, Eötvös L. University, Budapest, Hungary
| | - Szilvia Bősze
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, Budapest, Hungary.
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Castillo G, Pribransky K, Mező G, Kocsis L, Csámpai A, Németh K, Keresztes Z, Hianik T. Electrochemical and Photometric Detection of Plasmin by Specific Peptide Substrate. ELECTROANAL 2015. [DOI: 10.1002/elan.201400622] [Citation(s) in RCA: 16] [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] [Indexed: 12/31/2022]
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Máté G, Kertész I, Enyedi KN, Mező G, Angyal J, Vasas N, Kis A, Szabó É, Emri M, Bíró T, Galuska L, Trencsényi G. In vivo imaging of Aminopeptidase N (CD13) receptors in experimental renal tumors using the novel radiotracer (68)Ga-NOTA-c(NGR). Eur J Pharm Sci 2015; 69:61-71. [PMID: 25592229 DOI: 10.1016/j.ejps.2015.01.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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: 09/30/2014] [Revised: 12/29/2014] [Accepted: 01/05/2015] [Indexed: 12/15/2022]
Abstract
PURPOSE Aminopeptidase N (APN/CD13) plays an important role in tumor neoangiogenic process and the development of metastases. Furthermore, it may serve as a potential target for cancer diagnosis and therapy. Previous studies have already shown that asparagine-glycine-arginine (NGR) peptides specifically bind to APN/CD13. The aim of the study was to synthesize and investigate the APN/CD13 specificity of a novel (68)Ga-labeled NOTA-c(NGR) molecule in vivo using miniPET. METHODS c[KNGRE]-NH2 peptide was conjugated with p-SCN-Bn-NOTA and was labeled with Ga-68 ((68)Ga-NOTA-c(NGR)). Orthotopic and heterotopic transplanted mesoblastic nephroma (NeDe) bearing Fischer-344 rats were prepared, on which biodistribution studies and miniPET scans were performed for both (68)Ga-NOTA-c(NGR) and ανβ3 integrin selective (68)Ga-NODAGA-[c(RGD)]2 tracers. APN/CD13 receptor expression of NeDe tumors and metastases was analyzed by western blot. RESULTS (68)Ga-NOTA-c(NGR) was produced with high specific activity (5.13-5.92GBq/μmol) and with excellent radiochemical purity (95%<), at all cases. Biodistribution studies in normal rats showed that uptake of the (68)Ga-NOTA-c(NGR) was significantly (p⩽0.05) lower in abdominal organs in comparison with (68)Ga-NODAGA-[c(RGD)]2. Both radiotracers were mainly excreted from the kidney. In NeDe tumor bearing rats higher (68)Ga-NOTA-c(NGR) accumulation was found in the tumors than that of the (68)Ga-NODAGA-[c(RGD)]2. Using orthotopic transplantation, metastases were developed which showed specific (68)Ga-NOTA-c(NGR) uptake. Western blot analysis confirmed the presence of APN/CD13 expression in NeDe tumors and metastases. CONCLUSION Our novel radiotracer (68)Ga-NOTA-c(NGR) showed specific binding to the APN/CD13 expressed ortho- and heterotopic transplanted NeDe tumors. Therefore, (68)Ga-NOTA-c(NGR) is a suitable tracer for the detection of APN/CD13 positive tumors and metastases in vivo.
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Affiliation(s)
- Gábor Máté
- Department of Nuclear Medicine, University of Debrecen, Hungary
| | - István Kertész
- Department of Nuclear Medicine, University of Debrecen, Hungary
| | - Kata Nóra Enyedi
- MTA-ELTE, Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, Budapest, Hungary
| | - Gábor Mező
- MTA-ELTE, Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös L. University, Budapest, Hungary
| | - János Angyal
- Department of Periodontology, University of Debrecen, Debrecen, Hungary
| | - Nikolett Vasas
- Department of Physiology, University of Debrecen, Debrecen, Hungary
| | - Adrienn Kis
- Department of Nuclear Medicine, University of Debrecen, Hungary
| | - Éva Szabó
- Department of Periodontology, University of Debrecen, Debrecen, Hungary
| | - Miklós Emri
- Department of Nuclear Medicine, University of Debrecen, Hungary
| | - Tamás Bíró
- Department of Physiology, University of Debrecen, Debrecen, Hungary
| | - László Galuska
- Department of Nuclear Medicine, University of Debrecen, Hungary
| | - György Trencsényi
- Department of Nuclear Medicine, University of Debrecen, Hungary; Scanomed LTD, Debrecen, Hungary.
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Schreier VN, Pethő L, Orbán E, Marquardt A, Petre BA, Mező G, Manea M. Protein expression profile of HT-29 human colon cancer cells after treatment with a cytotoxic daunorubicin-GnRH-III derivative bioconjugate. PLoS One 2014; 9:e94041. [PMID: 24718594 PMCID: PMC3981732 DOI: 10.1371/journal.pone.0094041] [Citation(s) in RCA: 7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Accepted: 03/10/2014] [Indexed: 11/18/2022] Open
Abstract
Targeted delivery of chemotherapeutic agents is a new approach for the treatment of cancer, which provides increased selectivity and decreased systemic toxicity. We have recently developed a promising drug delivery system, in which the anticancer drug daunorubicin (Dau) was attached via oxime bond to a gonadotropin-releasing hormone-III (GnRH-III) derivative used as a targeting moiety (Glp-His-Trp-Lys(Ac)-His-Asp-Trp-Lys(Dau = Aoa)-Pro-Gly-NH2; Glp = pyroglutamic acid, Ac = acetyl; Aoa = aminooxyacetyl). This bioconjugate exerted in vitro cytostatic/cytotoxic effect on human breast, prostate and colon cancer cells, as well as significant in vivo tumor growth inhibitory effect on colon carcinoma bearing mice. In our previous studies, H-Lys(Dau = Aoa)-OH was identified as the smallest metabolite produced in the presence of rat liver lysosomal homogenate, which was able to bind to DNA in vitro. To get a deeper insight into the mechanism of action of the bioconjugate, changes in the protein expression profile of HT-29 human colon cancer cells after treatment with the bioconjugate or free daunorubicin were investigated by mass spectrometry-based proteomics. Our results indicate that several metabolism-related proteins, molecular chaperons and proteins involved in signaling are differently expressed after targeted chemotherapeutic treatment, leading to the conclusion that the bioconjugate exerts its cytotoxic action by interfering with multiple intracellular processes.
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Affiliation(s)
| | - Lilla Pethő
- Department of Chemistry, University of Konstanz, Konstanz, Germany
- MTA-ELTE Research Group of Peptide Chemistry, Budapest, Hungary
| | - Erika Orbán
- MTA-ELTE Research Group of Peptide Chemistry, Budapest, Hungary
| | | | | | - Gábor Mező
- MTA-ELTE Research Group of Peptide Chemistry, Budapest, Hungary
| | - Marilena Manea
- Department of Chemistry, University of Konstanz, Konstanz, Germany
- Zukunftskolleg, University of Konstanz, Konstanz, Germany
- * E-mail:
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Orosz Á, Mező G, Herényi L, Habdas J, Majer Z, Myśliwa-Kurdziel B, Tóth K, Csík G. Binding of new cationic porphyrin–tetrapeptide conjugates to nucleoprotein complexes. Biophys Chem 2013; 177-178:14-23. [DOI: 10.1016/j.bpc.2013.03.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 03/11/2013] [Accepted: 03/16/2013] [Indexed: 11/28/2022]
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50
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Díaz E, Köhidai L, Ríos A, Vanegas O, Silva A, Szabó R, Mező G, Hudecz F, Ponte-Sucre A. Leishmania braziliensis: cytotoxic, cytostatic and chemotactic effects of poly-lysine-methotrexate-conjugates. Exp Parasitol 2013; 135:134-41. [PMID: 23816643 DOI: 10.1016/j.exppara.2013.06.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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: 08/01/2012] [Revised: 06/04/2013] [Accepted: 06/12/2013] [Indexed: 10/26/2022]
Abstract
Chemotactic responses play a significant role during Leishmania differentiation, as well as in the course of parasite-host-cell interaction, a process that precedes a successful infection. The present study uses the modified "two-chamber capillary assay" to quantitatively evaluate the chemotactic properties and the toxic activities of methotrexate containing branched chain polymeric polypeptide conjugates in Leishmania. Our results demonstrate that this methodology quantitatively determines the taxis of Leishmania towards/against gradients of compounds. They also demonstrate that chemotaxis produced by the polypeptide-methotrexate conjugates depends on specific chemical characteristics. For example, the N-terminal amino acid (Ser or Glu) location at the branch significantly influences the elicited chemotaxis. Furthermore, the use of different attachment sites in the methotrexate conjugates (α- or γ-carboxylic groups) affect their chemotactic activity. Specific cytotoxic activities and cytostatic effects of the conjugates on parasites and on murine and human cells of the macrophage/monocyte system respectively, suggest that these ligands may be used as a group of anti-Leishmania substances acting selectively on Leishmania and different hosts.
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Affiliation(s)
- Emilia Díaz
- Laboratorio de Fisiología Molecular, Instituto de Medicina Experimental, Escuela Luis Razetti, Facultad de Medicina, Universidad Central de Venezuela, Venezuela
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