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Sun B, Yang H, Li Y, Scheerstra JF, van Stevendaal MHME, Li S, van Hest JCM. Targeted pH-Activated Peptide-Based Nanomaterials for Combined Photodynamic Therapy with Immunotherapy. Biomacromolecules 2024; 25:3044-3054. [PMID: 38662992 PMCID: PMC11094723 DOI: 10.1021/acs.biomac.4c00141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 05/14/2024]
Abstract
Photodynamic therapy (PDT) has demonstrated efficacy in eliminating local tumors, yet its effectiveness against metastasis is constrained. While immunotherapy has exhibited promise in a clinical context, its capacity to elicit significant systemic antitumor responses across diverse cancers is often limited by the insufficient activation of the host immune system. Consequently, the combination of PDT and immunotherapy has garnered considerable attention. In this study, we developed pH-responsive porphyrin-peptide nanosheets with tumor-targeting capabilities (PRGD) that were loaded with the IDO inhibitor NLG919 for a dual application involving PDT and immunotherapy (PRGD/NLG919). In vitro experiments revealed the heightened cellular uptake of PRGD/NLG919 nanosheets in tumor cells overexpressing αvβ3 integrins. The pH-responsive PRGD/NLG919 nanosheets demonstrated remarkable singlet oxygen generation and photocytotoxicity in HeLa cells in an acidic tumor microenvironment. When treating HeLa cells with PRGD/NLG919 nanosheets followed by laser irradiation, a more robust adaptive immune response occurred, leading to a substantial proliferation of CD3+CD8+ T cells and CD3+CD4+ T cells compared to control groups. Our pH-responsive targeted PRGD/NLG919 nanosheets therefore represent a promising nanosystem for combination therapy, offering effective PDT and an enhanced host immune response.
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Affiliation(s)
- Bingbing Sun
- Bio-Organic
Chemistry, Department of Chemical Engineering and Chemistry, Institute
for Complex Molecular Systems, Eindhoven
University of Technology Helix, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Haowen Yang
- Laboratory
of Immunoengineering, Department of Biomedical Engineering, Institute
for Complex Molecular Systems, Eindhoven
University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Yudong Li
- Bio-Organic
Chemistry, Department of Chemical Engineering and Chemistry, Institute
for Complex Molecular Systems, Eindhoven
University of Technology Helix, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Jari F. Scheerstra
- Bio-Organic
Chemistry, Department of Chemical Engineering and Chemistry, Institute
for Complex Molecular Systems, Eindhoven
University of Technology Helix, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Marleen H. M. E. van Stevendaal
- Bio-Organic
Chemistry, Department of Chemical Engineering and Chemistry, Institute
for Complex Molecular Systems, Eindhoven
University of Technology Helix, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Shukun Li
- Bio-Organic
Chemistry, Department of Chemical Engineering and Chemistry, Institute
for Complex Molecular Systems, Eindhoven
University of Technology Helix, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Jan C. M. van Hest
- Bio-Organic
Chemistry, Department of Chemical Engineering and Chemistry, Institute
for Complex Molecular Systems, Eindhoven
University of Technology Helix, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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2
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Lee H, Hong HJ, Ahn S, Kim D, Kang SH, Cho K, Koh WG. One-Pot Synthesis of Double-Network PEG/Collagen Hydrogel for Enhanced Adipogenic Differentiation and Retrieval of Adipose-Derived Stem Cells. Polymers (Basel) 2023; 15:polym15071777. [PMID: 37050391 PMCID: PMC10098799 DOI: 10.3390/polym15071777] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 04/05/2023] Open
Abstract
Hydrogels are widely used in stem cell therapy due to their extensive tunability and resemblance to the extracellular matrix (ECM), which has a three-dimensional (3D) structure. These features enable various applications that enhance stem cell maintenance and function. However, fast and simple hydrogel fabrication methods are desirable for stem cells for efficient encapsulation and to reduce adverse effects on the cells. In this study, we present a one-pot double-crosslinked hydrogel consisting of polyethylene glycol (PEG) and collagen, which can be prepared without the multi-step sequential synthesis of each network, by using bio-orthogonal chemistry. To enhance the adipogenic differentiation efficiency of adipose-derived stem cells (ADSCs), we added degradable components within the hydrogel to regulate matrix stiffness through cell-mediated degradation. Bio-orthogonal reactions used for hydrogel gelation allow rapid gel formation for efficient cell encapsulation without toxic by-products. Furthermore, the hybrid network of synthetic (PEG) and natural (collagen) components demonstrated adequate mechanical strength and higher cell adhesiveness. Therefore, ADSCs grown within this hybrid hydrogel proliferated and functioned better than those grown in the single-crosslinked hydrogel. The degradable elements further improved adipogenesis in ADSCs with dynamic changes in modulus during culture and enabled the retrieval of differentiated cells for potential future applications.
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Affiliation(s)
- Hwajung Lee
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Hye Jin Hong
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sujeong Ahn
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Dohyun Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Shin Hyuk Kang
- Departments of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul 06973, Republic of Korea
| | - Kanghee Cho
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Won-Gun Koh
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
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3
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Synthesis and Anti-Angiogenic Activity of Novel c(RGDyK) Peptide-Based JH-VII-139-1 Conjugates. Pharmaceutics 2023; 15:pharmaceutics15020381. [PMID: 36839704 PMCID: PMC9962512 DOI: 10.3390/pharmaceutics15020381] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
Peptide-drug conjugates are delivery systems for selective delivery of cytotoxic agents to target cancer cells. In this work, the optimized synthesis of JH-VII-139-1 and its c(RGDyK) peptide conjugates is presented. The low nanomolar SRPK1 inhibitor, JH-VII-139-1, which is an analogue of Alectinib, was linked to the ανβ3 targeting oligopeptide c(RGDyK) through amide, carbamate and urea linkers. The chemostability, cytotoxic and antiangiogenic properties of the synthesized hybrids were thoroughly studied. All conjugates retained mid nanomolar-level inhibitory activity against SRPK1 kinase and two out of four conjugates, geo75 and geo77 exhibited antiproliferative effects with low micromolar IC50 values against HeLa, K562, MDA-MB231 and MCF7 cancer cells. The activities were strongly related to the stability of the linkers and the release of JH-VII-139-1. In vivo zebrafish screening assays demonstrated the ability of the synthesized conjugates to inhibit the length or width of intersegmental vessels (ISVs). Flow cytometry experiments were used to test the cellular uptake of a fluorescein tagged hybrid in MCF7 and MDA-MB231 cells that revealed a receptor-mediated endocytosis process. In conclusion, most conjugates retained the inhibitory potency against SRPK1 as JH-VII-139-1 and demonstrated antiproliferative and antiangiogenic activities. Further animal model experiments are needed to uncover the full potential of such peptide conjugates in cancer therapy and angiogenesis-related diseases.
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4
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Abstract
Cucurbitacins (CUCUs) are triterpenoids known to display potent cytotoxic effects; however, their clinical application is limited due to poor pharmacokinetics and systemic toxicity. This work focuses on the development of c(RGDyK)-CUCU conjugates for the selective delivery of CUCUs to integrin-overexpressing cancer cells. The activity of the conjugates against various cancer cells was studied. They exhibited a mild cytostatic effect to six cancer cell lines and a cytotoxic effect against integrin-overexpressing MCF-7 and A549 cells. Their chemical and metabolic stability was extensively studied using LC-MS analysis. The conjugates maintained high affinity for αvβ3 integrin receptors. c(RGDyK) conjugation via a PEG linker was beneficial for CUCU-D and the resulting conjugate was approximately three-times more active than the free CUCU-D in MCF7 cells.
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5
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Mhlongo NZ, Ebenhan T, Driver CHS, Maguire GEM, Kruger HG, Govender T, Naicker T. Microwave-assisted synthesis of meso-carboxyalkyl-BODIPYs and an application to fluorescence imaging. Org Biomol Chem 2020; 18:7876-7883. [PMID: 32986056 DOI: 10.1039/d0ob01415j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this study, a significantly improved method for the synthesis of modular meso-BODIPY (boron dipyrromethene) derivatives possessing a free carboxylic acid group (which was subsequently coupled to peptides), is disclosed. This method provides a vastly efficient synthetic route with a > threefold higher overall yield than other reports. The resultant meso-BODIPY acid allowed for further easy incorporation into peptides. The meso-BODIPY peptides showed absorption maxima from 495-498 nm and emission maxima from 504-506 nm, molar absorptivity coefficients from 33 383-80 434 M-1 cm-1 and fluorescent quantum yields from 0.508-0.849. The meso-BODIPY-c(RGDyK) peptide was evaluated for plasma stability and (proved to be durable even up to 4 h) was then assessed for its fluorescence imaging applicability in vivo and ex vivo. The optical imaging in vivo was limited due to autofluorescence, however, the ex vivo tissue analysis displayed BODIPY-c(RGDyK) internalization and cancer detection thereby making it a novel tumor-integrin associated fluorescent probe while displaying the lack of interference the dye has on the properties of this ligand to bind the receptor.
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Affiliation(s)
- Neliswa Z Mhlongo
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa.
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6
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Novel c(RGDyK)-based conjugates of POPAM and 5-fluorouracil for integrin-targeted cancer therapy. Future Med Chem 2017; 9:2181-2196. [DOI: 10.4155/fmc-2017-0139] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Aim: Alkylating agents and antimetabolites are cytotoxic drugs commonly used in cancer treatment. These medications are often associated with serious side effects on normal tissues and organs. Methodology: To improve the pharmacological profile of the alkylating agent POPAM and the antimetabolite 5-fluorouracil, novel integrin-targeted delivery systems based on c(RGDyK) were successfully synthesized. The new conjugates were tested in vitro against different cancer cells such as PC3, SKOV3, A549, MCF7 and MBA-MB-321. Results & conclusion: The c(RGDyK) conjugates of POPAM demonstrated better inhibitory effects and selectivity compared with c(RGDyK) and POPAM. The c(RGDyK) conjugates of 5-FUA demonstrated diverse inhibitory effects compared with c(RGDyK) and 5-FUA related to the levels of integrin expression, the conjugate stability and sensitivity of cancer cells to 5-FUA.
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7
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Meghani NM, Amin HH, Lee BJ. Mechanistic applications of click chemistry for pharmaceutical drug discovery and drug delivery. Drug Discov Today 2017; 22:1604-1619. [PMID: 28754291 DOI: 10.1016/j.drudis.2017.07.007] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 06/18/2017] [Accepted: 07/17/2017] [Indexed: 01/30/2023]
Abstract
The concept of click chemistry (CC), first introduced by K.B. Sharpless, has been widely adopted for use in drug discovery, novel drug delivery systems (DDS), polymer chemistry, and material sciences. In this review, we outline novel aspects of CC related to drug discovery and drug delivery, with a brief overview of molecular mechanisms underlying each click reaction commonly used by researchers, and the main patents that paved the way for further diverse medicinal applications. We also describe recent progress in drug discovery and polymeric and carbon material-based drug delivery for potential pharmaceutical applications and advancements based on the CC approach, and discuss some intrinsic limitations of this popular conjugation reaction. The use of CC is likely to significantly advance drug discovery and bioconjugation development.
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Affiliation(s)
- Nilesh M Meghani
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
| | - Hardik H Amin
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
| | - Beom-Jin Lee
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea; Institute of Pharmaceutical Science and Technology, Ajou University, Suwon 16499, Republic of Korea.
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8
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Pagel M, Meier R, Braun K, Wiessler M, Beck-Sickinger AG. On-resin Diels–Alder reaction with inverse electron demand: an efficient ligation method for complex peptides with a varying spacer to optimize cell adhesion. Org Biomol Chem 2016; 14:4809-16. [DOI: 10.1039/c6ob00314a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The DARinvon resin is a new orthogonal reaction in peptide synthesis and the benefits for cell adhesion are discussed.
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Affiliation(s)
- Mareen Pagel
- Institute of Biochemistry
- Faculty of Biosciences
- Pharmacy and Psychology
- Leipzig
- Germany
| | - René Meier
- Institute of Biochemistry
- Faculty of Biosciences
- Pharmacy and Psychology
- Leipzig
- Germany
| | - Klaus Braun
- Deutsches Krebsforschungszentrum
- 69120 Heidelberg
- Germany
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9
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Avti PK, Maysinger D, Kakkar A. Alkyne-azide "click" chemistry in designing nanocarriers for applications in biology. Molecules 2013; 18:9531-49. [PMID: 23966076 PMCID: PMC6270461 DOI: 10.3390/molecules18089531] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 08/03/2013] [Accepted: 08/05/2013] [Indexed: 12/11/2022] Open
Abstract
The alkyne-azide cycloaddition, popularly known as the "click" reaction, has been extensively exploited in molecule/macromolecule build-up, and has offered tremendous potential in the design of nanomaterials for applications in a diverse range of disciplines, including biology. Some advantageous characteristics of this coupling include high efficiency, and adaptability to the environment in which the desired covalent linking of the alkyne and azide terminated moieties needs to be carried out. The efficient delivery of active pharmaceutical agents to specific organelles, employing nanocarriers developed through the use of "click" chemistry, constitutes a continuing topical area of research. In this review, we highlight important contributions click chemistry has made in the design of macromolecule-based nanomaterials for therapeutic intervention in mitochondria and lipid droplets.
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Affiliation(s)
- Pramod K. Avti
- Montreal Heart Institute, Research Center, 5000 Bélanger Est, Montréal, QC H1T 1C8, Canada
- Institute of Biomedical Engineering, École Polytechnique de Montréal, Montreal, QC H3C 3A7, Canada
- Department of Chemistry, McGill University, 801 Sherbrooke St. W. Montréal, QC H3A 0B8 Canada
| | - Dusica Maysinger
- Department of Pharmacology and Therapeutics, McGill University, 3655 Promenade Sir-William-Osler, Montreal, QC H3G 1Y6, Canada
| | - Ashok Kakkar
- Department of Chemistry, McGill University, 801 Sherbrooke St. W. Montréal, QC H3A 0B8 Canada
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10
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Pipkorn R, Rawer S, Wiessler M, Waldeck W, Koch M, Schrenk HH, Braun K. SPPS resins impact the PNA-syntheses' improvement. Int J Med Sci 2013; 10:331-7. [PMID: 23423830 PMCID: PMC3575629 DOI: 10.7150/ijms.5374] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 12/19/2012] [Indexed: 01/07/2023] Open
Abstract
The personalized medicine, also documented as "individualized medicine", is an effective and therapeutic approach. It is designed to treat the disease of the individual patient whose precise differential gene expression profile is well known. The trend in the biomedical and biophysical research shows important consequences for the pharmaceutical drug and diagnostics research. It requires a high variability in the design and safety of target-specific pharmacologically active molecules and diagnostic components for imaging of metabolic processes. A key technology which may fulfill the highest demands during synthesis of these individual drugs and diagnostics is the solid phase synthesis which is congenial to automated manufacturing. Additionally the choice of tools like resins and reagents is pivotal to synthesize drugs and diagnostics in high quality and yields. Here we demonstrate the solid phase synthesis effects dependent on the choice of resin and of the deprotection agent.
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Affiliation(s)
- Rüdiger Pipkorn
- German Cancer Research Center, Peptide Synthesis Core Facility, INF 280, D-69120 Heidelberg, Germany.
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11
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Hou L, Zhao X, Wang P, Ning Q, Meng M, Liu C. Antitumor activity of antimicrobial peptides containing CisoDGRC in CD13 negative breast cancer cells. PLoS One 2013; 8:e53491. [PMID: 23326440 PMCID: PMC3543424 DOI: 10.1371/journal.pone.0053491] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 11/29/2012] [Indexed: 11/18/2022] Open
Abstract
Backgroud isoAsp-Gly-Arg (isoDGR) is a derivative of the Asn-Gly-Arg (NGR) motif, which is used as a targeted delivery tool to aminopeptidase N (CD13) positive cells. Recent studies have shown that cyclic isoDGR (CisoDGRC) has a more efficient affinity with αvβ3, a type of integrin that overexpresses in tumor cells. Antimicrobial peptides (AMPs) are an efficient antitumor peptide that specifically kills tumor cells. In the present study, we designed antimicrobial peptides containing the CisoDGRC motif (CDAK) and assessed its antitumor activity for CD13−/αvβ3+ breast cancer cells (MCF-7 and MDA-MB-231) in vitro and in vivo. Methods In vitro: We assessed the cytotoxicity of CDAK for MCF-7 and MDA-MB-231 breast cancer cells, the human umbilical vein endothelial cell (HUVEC), and human foreskin fibroblasts (HFF). We performed an apoptosis assay using Annexin-V/PI, DNA ladder, mitochondrial membrane potential, and Caspase-3 and Bcl-2. The effect on cell cycles and affinity with cell were tested using flow cytometry and fluorescent microscopy and the effect on invasion was analyzed using an invasion assay. CDAK was injected intravenously into tumor-bearing athymic nude mice in vivo experiment. Results CDAK showed cytotoxic activity in MCF-7 and MDA-MB-231 cells, whereas HUVEC and HFF were less sensitive to the peptides. CDAK induced apoptosis, reduced mitochondrial membrane potential, promoted Caspase-3, and inhibited Bcl-2 expression in the two breast cancer cell lines. In addition, CDAK inhibited proliferation of cancer cell through S phase arrest, and own selective affinity with MCF-7 and MDA-MB-231cells, inhibited the invasion of MDA-MB-231 cells. In vivo, CDAK significant inhibited the progression of the tumor and the generation of neovascularization. Conclusion Antimicrobial peptides containing the CisoDGRC (CDAK) motif could efficiently exhibit the antitumor activity for CD13−/αvβ3+ breast cancer cells.
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Affiliation(s)
- Lei Hou
- Department of Oncology, The First Affiliated Hospital of Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Xinhan Zhao
- Department of Oncology, The First Affiliated Hospital of Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
- * E-mail:
| | - Pei Wang
- Department of Oncology, The First Affiliated Hospital of Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Qian Ning
- Department of Oncology, The First Affiliated Hospital of Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Min Meng
- Department of Oncology, The First Affiliated Hospital of Medical School of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Caigang Liu
- Department of Breast Surgery, General Surgery, the First Hospital of China Medical University, Shenyang, Liaoning Province, China
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12
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RUSSO MARIKAA, PAOLILLO MAYRA, SANCHEZ-HERNANDEZ YULY, CURTI DANIELA, CIUSANI EMILIO, SERRA MASSIMO, COLOMBO LINO, SCHINELLI SERGIO. A small-molecule RGD-integrin antagonist inhibits cell adhesion, cell migration and induces anoikis in glioblastoma cells. Int J Oncol 2013; 42:83-92. [PMID: 23174862 PMCID: PMC3583633 DOI: 10.3892/ijo.2012.1708] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Accepted: 09/28/2012] [Indexed: 11/06/2022] Open
Abstract
In cancer cells integrins modulate important cellular events that regulate the metastasic cascade which involves detachment from the tumor mass, dissemination and attachment to the oncogenic niche. The α5β1, αvβ3 and αvβ5 integrins are widely expressed in different cancer types and recognize the tripeptide Arg-Gly-Asp (RGD) motif present in several extracellular matrix proteins. In human glioblastoma, αvβ3 integrin expression correlates with tumor grade, suggesting that this integrin may play a crucial role in the highly infiltrative behavior of high grade gliomas. However, few selective RGD-like antagonists have been developed and few studies have investigated their effects in in vitro models of human glioblastoma. In this study, we investigated several cellular effects and the underlying molecular mechanisms exerted by a new small-molecule RGD antagonist, 1a-RGD, in the U251 and U373 human glioblastoma cell lines. Treatment with 1a-RGD (20 µM) demonstrated a weak effect on cell viability and cell proliferation but strongly inhibited cell attachment and cell migration together with actin cytoskeleton disassembly. Prolonged 1a-RGD treatment (72 h) induced anoikis, assessed by Annexin staining and nucleosome assay, particularly in the detached cells. When integrin-linked transduction pathways were investigated, 1aRGD was found to exert a marked reduction in focal adhesion kinase (FAK) phosphorylation without affecting the AKT- and ERK-dependent pathways. Our data indicate that 1a-RGD, probably via modulation of the FAK-dependent pathway, inhibits cell migration and attachment and induces anoikis in glioblastoma cells. This novel finding suggests that the development of an RGD-like molecule may represent a promising tool for the pharmacological approach aimed at reducing the malignancy of glioblastoma cells.
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Affiliation(s)
- MARIKA A. RUSSO
- Department of Developmental and Molecular Biology, Albert Einstein College of Medicine of Yeshiva University, Bronx, NY 10461,
USA
| | | | | | - DANIELA CURTI
- Biology and Biotechnology ‘Lazzaro Spallanzani’, University of Pavia, I-27100 Pavia
| | - EMILIO CIUSANI
- Carlo Besta Neurological Institute, I-20133 Milan,
Italy
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13
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Pilkington-Miksa M, Arosio D, Battistini L, Belvisi L, De Matteo M, Vasile F, Burreddu P, Carta P, Rassu G, Perego P, Carenini N, Zunino F, De Cesare M, Castiglioni V, Scanziani E, Scolastico C, Casiraghi G, Zanardi F, Manzoni L. Design, Synthesis, and Biological Evaluation of Novel cRGD–Paclitaxel Conjugates for Integrin-Assisted Drug Delivery. Bioconjug Chem 2012; 23:1610-22. [DOI: 10.1021/bc300164t] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael Pilkington-Miksa
- Centro Interdipartimentale
Studi Biomolecolari e Applicazioni Industriali, Università degli Studi di Milano, Via Fantoli
16/15, I-20138 Milano, Italy
| | - Daniela Arosio
- Istituto di Scienze
e Tecnologie Molecolari, Consiglio Nazionale delle Ricerche, Via Golgi 19, I-20133 Milano, Italy
| | - Lucia Battistini
- Dipartimento Farmaceutico, Università degli Studi di Parma, Parco Area
delle Scienze 27A, I-43124 Parma, Italy
| | - Laura Belvisi
- Dipartimento di Chimica
Organica e Industriale, Università degli Studi di Milano, Via Venezian 21, I-20133 Milano,
Italy
| | - Marilenia De Matteo
- Centro Interdipartimentale
Studi Biomolecolari e Applicazioni Industriali, Università degli Studi di Milano, Via Fantoli
16/15, I-20138 Milano, Italy
| | - Francesca Vasile
- Centro Interdipartimentale
Studi Biomolecolari e Applicazioni Industriali, Università degli Studi di Milano, Via Fantoli
16/15, I-20138 Milano, Italy
| | - Paola Burreddu
- Istituto
di Chimica
Biomolecolare, Consiglio Nazionale delle Ricerche, Traversa La Crucca 3, I-07100 Li Punti, Sassari,
Italy
| | - Paola Carta
- Porto Conte Ricerche Srl, I-07041 Tramariglio Alghero, Sassari, Italy
| | - Gloria Rassu
- Istituto
di Chimica
Biomolecolare, Consiglio Nazionale delle Ricerche, Traversa La Crucca 3, I-07100 Li Punti, Sassari,
Italy
| | - Paola Perego
- Dipartimento di Oncologia Sperimentale
e Medicina Molecolare, Fondazione IRCCS Istituto Nazionale Tumori, Via Amadeo 42, I-20133 Milano, Italy
| | - Nives Carenini
- Dipartimento di Oncologia Sperimentale
e Medicina Molecolare, Fondazione IRCCS Istituto Nazionale Tumori, Via Amadeo 42, I-20133 Milano, Italy
| | - Franco Zunino
- Dipartimento di Oncologia Sperimentale
e Medicina Molecolare, Fondazione IRCCS Istituto Nazionale Tumori, Via Amadeo 42, I-20133 Milano, Italy
| | - Michelandrea De Cesare
- Dipartimento di Oncologia Sperimentale
e Medicina Molecolare, Fondazione IRCCS Istituto Nazionale Tumori, Via Amadeo 42, I-20133 Milano, Italy
| | - Vittoria Castiglioni
- Dipartimento di
Patologia Animale, Igiene e Sanità Pubblica Veterinaria
(DIPAV), Facoltà di Medicina Veterinaria, Università degli Studi di Milano, Via Celoria 10, I-20133 Milano,
Italy
- Mouse and Animal Pathology
Laboratory, Fondazione Filarete, Viale
Ortles 22/4, I-20139 Milano,
Italy
| | - Eugenio Scanziani
- Dipartimento di
Patologia Animale, Igiene e Sanità Pubblica Veterinaria
(DIPAV), Facoltà di Medicina Veterinaria, Università degli Studi di Milano, Via Celoria 10, I-20133 Milano,
Italy
- Mouse and Animal Pathology
Laboratory, Fondazione Filarete, Viale
Ortles 22/4, I-20139 Milano,
Italy
| | - Carlo Scolastico
- Centro Interdipartimentale
Studi Biomolecolari e Applicazioni Industriali, Università degli Studi di Milano, Via Fantoli
16/15, I-20138 Milano, Italy
| | - Giovanni Casiraghi
- Dipartimento Farmaceutico, Università degli Studi di Parma, Parco Area
delle Scienze 27A, I-43124 Parma, Italy
| | - Franca Zanardi
- Dipartimento Farmaceutico, Università degli Studi di Parma, Parco Area
delle Scienze 27A, I-43124 Parma, Italy
| | - Leonardo Manzoni
- Istituto di Scienze
e Tecnologie Molecolari, Consiglio Nazionale delle Ricerche, Via Golgi 19, I-20133 Milano, Italy
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14
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Braun K, Beining M, Wiessler M, Lammers T, Pipkorn R, Hennrich U, Nokihara K, Semmler W, Debus J, Waldeck W. BioShuttle mobility in living cells studied with high-resolution FCS & CLSM methodologies. Int J Med Sci 2012; 9:339-52. [PMID: 22811608 PMCID: PMC3399214 DOI: 10.7150/ijms.4414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 06/18/2012] [Indexed: 01/04/2023] Open
Abstract
With the increase in molecular diagnostics and patient-specific therapeutic approaches, the delivery and targeting of imaging molecules and pharmacologically active agents gain increasing importance. The ideal delivery system does not exist yet. The realization of two features is indispensable: first, a locally high concentration of target-specific diagnostic and therapeutic molecules; second, the broad development of effective and safe carrier systems. Here we characterize the transport properties of the peptide-based BioShuttle transporter using FFM and CLSM methods. The modular design of BioShuttle-based formulations results in a multi-faceted field of applications, also as a theranostic tool.
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Affiliation(s)
- Klaus Braun
- Dept. of Imaging and Radiooncology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg, Germany.
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15
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Liu X, Cui W, Li B, Hong Z. Targeted therapy for glioma using cyclic RGD-entrapped polyionic complex nanomicelles. Int J Nanomedicine 2012; 7:2853-62. [PMID: 22745548 PMCID: PMC3383325 DOI: 10.2147/ijn.s29788] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The purpose of this study was to test the efficacy of cyclic Arg-Gly-Asp (RGD) peptide conjugated with polyionic complex nanomicelles as targeted therapy for glioma. METHODS A stable cyclic RGD polyionic complex nanostructure, ie, a c(RGDfC) polyionic complex micelle, was synthesized and its biocompatibility with cultured neurons was assessed using a cell viability assay. Targeted binding to cultured glioma cells was evaluated by the CdTe quantum dot marking technique and a cell viability assay. The inhibitory effect of the nanomicelles against glioma cells was also evaluated, and their targeted migration into rat brain glioma cells and apoptotic effects were traced by the CdTe quantum dot marking and immunohistochemical staining. RESULTS c(RGDfC) polyionic complex micelles did not affect the growth of neurons but bonded selectively to and inhibited proliferation of glioma cells in vitro. When tested in vivo, the micelles migrated into glioma cells, inducing apoptosis in the rat brain. CONCLUSION The c(RGDfC) polyionic complex micelle is an effective targeted therapy against glioma.
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Affiliation(s)
- Xiaoying Liu
- Department of Neurology, Ruijin Hospital, Shanghai Jiao Tong University, Shanghai China.
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16
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Chen PJ, Hu SH, Hung WT, Chen SY, Liu DM. Geometrical confinement of quantum dots in porous nanobeads with ultraefficient fluorescence for cell-specific targeting and bioimaging. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm00080f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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17
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Wiessler M, Hennrich U, Pipkorn R, Waldeck W, Cao L, Peter J, Ehemann V, Semmler W, Lammers T, Braun K. Theranostic cRGD-BioShuttle Constructs Containing Temozolomide- and Cy7 For NIR-Imaging and Therapy. Am J Cancer Res 2011; 1:381-94. [PMID: 22211144 PMCID: PMC3248642 DOI: 10.7150/thno/v01p0381] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Accepted: 12/01/2011] [Indexed: 11/13/2022] Open
Abstract
Innovative and personalized therapeutic approaches result from the identification and control of individual aberrantly expressed genes at the transcriptional and post-transcriptional level. Therefore, it is of high interest to establish diagnostic, therapeutic and theranostic strategies at these levels. In the present study, we used the Diels-Alder Reaction with inverse electron demand (DARinv) click chemistry to prepare a series of cyclic RGD-BioShuttle constructs. These constructs carry the near-infrared (NIR) imaging agent Cy7 and the chemotherapeutic agent temozolomide (TMZ). We evaluated their uptake by and their efficacy against integrin αvβ3-expressing MCF7 human breast carcinoma cells. In addition, using a mouse phantom, we analyzed the suitability of this targeted theranostic agent for NIR optical imaging. We observed that the cyclic RGD-based carriers containing TMZ and/or Cy7 were effectively taken up by αvβ3-expressing cells, that they were more effective than free TMZ in inducing cell death, and that they could be quantitatively visualized using NIR fluorescence imaging. Therefore, these targeted theranostic agents are considered to be highly suitable systems for improving disease diagnosis and therapy.
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18
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Pipkorn R, Wiessler M, Waldeck W, Hennrich U, Nokihara K, Beining M, Braun K. Improved synthesis strategy for peptide nucleic acids (PNA) appropriate for cell-specific fluorescence imaging. Int J Med Sci 2011; 9:1-10. [PMID: 22211082 PMCID: PMC3222083 DOI: 10.7150/ijms.9.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2011] [Accepted: 10/17/2011] [Indexed: 11/05/2022] Open
Abstract
Progress in genomics and proteomics attended to the door for better understanding the recent rapid expanding complex research field of metabolomics. This trend in biomedical research increasingly focuses to the development of patient-specific therapeutic approaches with higher efficiency and sustainability. Simultaneously undesired adverse reactions are avoided. In parallel, the development of molecules for molecular imaging is required not only for the imaging of morphological structures but also for the imaging of metabolic processes like the aberrant expression of the cysteine protease cathepsin B (CtsB) gene and the activity of the resulting product associated with metastasis and invasiveness of malign tumors. Finally the objective is to merge imaging and therapy at the same level. The design of molecules which fulfil these responsibilities is pivotal and requires proper chemical methodologies. In this context our modified solid phase peptide chemistry using temperature shifts during synthesis is considered as an appropriate technology. We generated highly variable conjugates which consist of molecules useful as diagnostically and therapeutically active molecules. As an example the modular PNA products with the complementary sequence to the CtsB mRNA and additionally with a cathepsin B cleavage site had been prepared as functional modules for distinction of cell lines with different CtsB gene expression. After ligation to the modular peptide-based BioShuttle carrier, which was utilized to facilitate the delivery of the functional modules into the cells' cytoplasm, the modules were scrutinized.
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Affiliation(s)
- Rüdiger Pipkorn
- DKFZ, Central Peptide Synthesis Unit, INF 580, D-69120 Heidelberg, Germany.
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