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Liu X, Zhang P, Liu Y, Li J, Yang D, Liu Z, Jiang L. Anti- Toxoplasma gondii Effects of Lipopeptide Derivatives of Lycosin-I. Toxins (Basel) 2023; 15:477. [PMID: 37624234 PMCID: PMC10467082 DOI: 10.3390/toxins15080477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/26/2023] Open
Abstract
Toxoplasmosis, caused by Toxoplasma gondii (T. gondii), is a serious zoonotic parasitic disease. We previously found that Lycosin-I exhibited anti-T. gondii activity, but its serum stability was not good enough. In this study, we aimed to improve the stability and activity of Lycosin-I through fatty acid chain modification, so as to find a better anti-T. gondii drug candidate. The α/ε-amino residues of different lysine residues of Lycosin-I were covalently coupled with lauric acid to obtain eight lipopeptides, namely L-C12, L-C12-1, L-C12-2, L-C12-3, L-C12-4, L-C12-5, L-C12-6, and L-C12-7. Among these eight lipopeptides, L-C12 showed the best activity against T. gondii in vitro in a trypan blue assay. We then conjugated a shorter length fatty chain, aminocaproic acid, at the same modification site of L-C12, namely L-an. The anti-T. gondii effects of Lycosin-I, L-C12 and L-an were evaluated via an invasion assay, proliferation assay and plaque assay in vitro. A mouse model acutely infected with T. gondii tachyzoites was established to evaluate their efficacy in vivo. The serum stability of L-C12 and L-an was improved, and they showed comparable or even better activity than Lycosin-I did in inhibiting the invasion and proliferation of tachyzoites. L-an effectively prolonged the survival time of mice acutely infected with T. gondii. These results suggest that appropriate fatty acid chain modification can improve serum stability and enhance anti-T. gondii effect of Lycosin-I. The lipopeptide derivatives of Lycosin-I have potential as a novel anti-T. gondii drug candidate.
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Affiliation(s)
- Xiaohua Liu
- Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha 410013, China; (X.L.); (Y.L.); (J.L.); (D.Y.)
| | - Peng Zhang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (P.Z.); (Z.L.)
| | - Yuan Liu
- Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha 410013, China; (X.L.); (Y.L.); (J.L.); (D.Y.)
| | - Jing Li
- Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha 410013, China; (X.L.); (Y.L.); (J.L.); (D.Y.)
| | - Dongqian Yang
- Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha 410013, China; (X.L.); (Y.L.); (J.L.); (D.Y.)
| | - Zhonghua Liu
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (P.Z.); (Z.L.)
| | - Liping Jiang
- Department of Parasitology, Xiangya School of Medicine, Central South University, Changsha 410013, China; (X.L.); (Y.L.); (J.L.); (D.Y.)
- China-Africa Research Center of Infectious Diseases, Xiangya School of Medicine, Central South University, Changsha 410013, China
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Chowdhary R, Mubarak MM, Kantroo HA, Ur Rahim J, Malik A, Sarkar AR, Bashir G, Ahmad Z, Rai R. Synthesis, Characterization, and Antimicrobial Activity of Ultra-Short Cationic β-Peptides. ACS Infect Dis 2023; 9:1437-1448. [PMID: 37399583 DOI: 10.1021/acsinfecdis.3c00238] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
The development of new antibiotics is urgently required because of the rapidly growing resistance against conventional antibiotics. The antimicrobial peptides show potential as small antibiotic molecules. The stability of peptides is a primary concern for the use of peptides as drugs. Introducing β-amino acids into peptide sequences can be useful in preventing biological degradation by proteolytic enzymes. Herein, we describe the synthesis, characterization, and antimicrobial activity of ultra-short cationic β-peptides, LA-β3,3-Pip-β2,2-Ac6c-PEA, P1; LA-β3,3-Pip(G)-β2,2-Ac6c-PEA, P2; LAU-β3,3-Pip-β2,2-Ac6c-PEA, P3, and LAU-β3,3-Pip(G)-β2,2-Ac6c-PEA, P4. Peptides P1-P4 were evaluated against Gram-negative, Gram-positive, MRSA, and multi-drug resistant E. coli (MDR-E. coli). P3 exhibited the most potent antimicrobial activity against E. coli, S. epidermidis, S. aureus, K. pneumoniae, S. mutans, and E. faecalis, with MIC values 0.5, 2, 0.5, 1, 2, and 1 μg/mL, respectively. P3 exhibited time- and concentration-dependent bactericidal activities against E. coli, S. aureus, and E. faecalis with a killing rate of 1.6 logs/h. The treatment of E. coli with peptide P3 showed membrane disruption. In addition, P3 exhibited the inhibition of biofilm produced by E. coli, synergism with antibiotics (ciprofloxacin, streptomycin, and ampicillin), 100% cell viability against AML12, RAW 264.7, and HEK-293 cell lines at 1, and 10 μg/mL concentrations.
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Affiliation(s)
- Rubina Chowdhary
- Natural Products &Medicinal Chemistry Division, CSIR - Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mohamad Mosa Mubarak
- Clinical Microbiology PK/PD Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar 190005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Hadiya A Kantroo
- Clinical Microbiology PK/PD Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar 190005, India
| | - Junaid Ur Rahim
- Natural Products &Medicinal Chemistry Division, CSIR - Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Abbass Malik
- Clinical Microbiology PK/PD Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar 190005, India
| | - Aminur Rahman Sarkar
- Natural Products &Medicinal Chemistry Division, CSIR - Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Gulnaz Bashir
- Department of Microbiology, Sher-I-Kashmir Institute of Medical Sciences, Srinagar 190011, India
| | - Zahoor Ahmad
- Clinical Microbiology PK/PD Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar 190005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Rajkishor Rai
- Natural Products &Medicinal Chemistry Division, CSIR - Institute of Integrative Medicine, Canal Road, Jammu 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Chi QN, Jia SX, Yin H, Wang LE, Fu XY, Ma YN, Sun MP, Qi YK, Li Z, Du SS. Efficient synthesis and anticancer evaluation of spider toxin peptide LVTX-8-based analogues with enhanced stability. Bioorg Chem 2023; 134:106451. [PMID: 36907048 DOI: 10.1016/j.bioorg.2023.106451] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/12/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023]
Abstract
Cytotoxic peptides derived from spider venoms have been considered as promising candidates for anticancer treatment. The novel cell penetrating peptide LVTX-8, which is a 25-residue amphipathic α-helical peptide isolated from spider Lycosa vittata, exhibited potent cytotoxicity and is a potential precursor for further anticancer drug development. Nevertheless, LVTX-8 may be easily degraded by multiple proteases, inducing the proteolytic stability problem and short half-life. In this study, ten LVTX-8-based analogs were rationally designed and the efficient manual synthetic method was established by the DIC/Oxyma based condensation system. The cytotoxicity of synthetic peptides was systematically evaluated against seven cancer cell lines. Seven of the derived peptides exhibited high cytotoxicity towards tested cancer in vitro, which was better than or comparable to that of natural LVTX-8. In particular, both N-acetyl and C-hydrazide modified LVTX-8 (825) and the conjugate methotrexate (MTX)-GFLG-LVTX-8 (827) possessed more durable anticancer efficiency, higher proteolytic stability, as well as lower hemolysis. Finally, we confirmed that LVTX-8 could disrupt the integrity of cell membrane, target the mitochondria and reduce the mitochondrial membrane potential to induce the cell death. Taken together, the structural modifications were conducted on LVTX-8 for the first time and the stability significantly improved derivatives 825 and 827 may provide useful references for the modifications of cytotoxic peptides.
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Affiliation(s)
- Qiao-Na Chi
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Shi-Xi Jia
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Hao Yin
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266073, China
| | - Li-E Wang
- Department of Assisted Reproduction, Reproductive Center, Qingdao Women and Children's Hospital, Qingdao 266004, China
| | - Xing-Yan Fu
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266073, China
| | - Yan-Nan Ma
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266073, China
| | - Ming-Pu Sun
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yun-Kun Qi
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266073, China.
| | - Zhibo Li
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Shan-Shan Du
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266073, China.
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Choosing an Optimal Solvent Is Crucial for Obtaining Cell-Penetrating Peptide Nanoparticles with Desired Properties and High Activity in Nucleic Acid Delivery. Pharmaceutics 2023; 15:pharmaceutics15020396. [PMID: 36839718 PMCID: PMC9963036 DOI: 10.3390/pharmaceutics15020396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 01/16/2023] [Accepted: 01/19/2023] [Indexed: 01/27/2023] Open
Abstract
Cell-penetrating peptides (CPPs) are highly promising transfection agents that can deliver various compounds into living cells, including nucleic acids (NAs). Positively charged CPPs can form non-covalent complexes with negatively charged NAs, enabling simple and time-efficient nanoparticle preparation. However, as CPPs have substantially different chemical and physical properties, their complexation with the cargo and characteristics of the resulting nanoparticles largely depends on the properties of the surrounding environment, i.e., solution. Here, we show that the solvent used for the initial dissolving of a CPP determines the properties of the resulting CPP particles formed in an aqueous solution, including the activity and toxicity of the CPP-NA complexes. Using different biophysical methods such as dynamic light scattering (DLS), atomic force microscopy (AFM), transmission and scanning electron microscopy (TEM and SEM), we show that PepFect14 (PF14), a cationic amphipathic CPP, forms spherical particles of uniform size when dissolved in organic solvents, such as ethanol and DMSO. Water-dissolved PF14, however, tends to form micelles and non-uniform aggregates. When dissolved in organic solvents, PF14 retains its α-helical conformation and biological activity in cell culture conditions without any increase in cytotoxicity. Altogether, our results indicate that by using a solvent that matches the chemical nature of the CPP, the properties of the peptide-cargo particles can be tuned in the desired way. This can be of critical importance for in vivo applications, where CPP particles that are too large, non-uniform, or prone to aggregation may induce severe consequences.
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González-Cruz AO, Hernández-Juárez J, Ramírez-Cabrera MA, Balderas-Rentería I, Arredondo-Espinoza E. Peptide-based drug-delivery systems: A new hope for improving cancer therapy. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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6
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Transfection of Heat Shock Protein 70 kDa (HSP70). Int J Pept Res Ther 2022. [DOI: 10.1007/s10989-022-10416-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AbstractHeat shock protein 70 kDa (HSP70) is a major protein family in the cell protections against stress-induced denaturation and aggregation and in the folding of nascent proteins. It is a highly conserved protein that can be found in most organisms and is strongly connected to several intracellular pathways such as protein folding and refolding, protein degradation and regulation, and protection against intense stress. Cellular delivery of HSP70 would be of high impact for clarification of its role in these cellular processes.PepFect14 is a cell-penetrating peptide known to be able to mediate the transfection of various oligonucleotides to multiple cell lines with a higher efficacy than most commercially available transfection agents and without inducing significant toxic effects.In this study we demonstrated that PepFect14 was able to form a complex with HSP70 and to deliver it inside cells in the same fashion with oligonucleotide delivery. The delivered HSP70 showed an effect in the cell regulation indicating that the protein was biologically available in the cytoplasm and the interactions with PepFect14 did not impeach its active sites once the plasma barrier crossed.This study reports the first successful delivery of HSP70 to our knowledge and the first protein transfection mediated by PepFect14. It opens new fields of research for both PepFect14 as a delivery agent and HSP70 as a therapeutic agent; with potential in peptide aggregation caused diseases such as Parkinson’s and Alzheimer’s diseases.
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7
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Unleashing cell-penetrating peptide applications for immunotherapy. Trends Mol Med 2022; 28:482-496. [DOI: 10.1016/j.molmed.2022.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 12/31/2022]
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Maloverjan M, Padari K, Abroi A, Rebane A, Pooga M. Divalent Metal Ions Boost Effect of Nucleic Acids Delivered by Cell-Penetrating Peptides. Cells 2022; 11:cells11040756. [PMID: 35203400 PMCID: PMC8870069 DOI: 10.3390/cells11040756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/11/2022] [Accepted: 02/19/2022] [Indexed: 12/01/2022] Open
Abstract
Cell-penetrating peptides (CPPs) are promising tools for the transfection of various substances, including nucleic acids, into cells. The aim of the current work was to search for novel safe and effective approaches for enhancing transfection efficiency of nanoparticles formed from CPP and splice-correcting oligonucleotide (SCO) without increasing the concentration of peptide. We analyzed the effect of inclusion of calcium and magnesium ions into nanoparticles on CPP-mediated transfection in cell culture. We also studied the mechanism of such transfection as well as its efficiency, applicability in case of different cell lines, nucleic acid types and peptides, and possible limitations. We discovered a strong positive effect of these ions on transfection efficiency of SCO, that translated to enhanced synthesis of functional reporter protein. We observed significant changes in intracellular distribution and trafficking of nanoparticles formed by the addition of the ions, without increasing cytotoxicity. We propose a novel strategy for preparing CPP-oligonucleotide nanoparticles with enhanced efficiency and, thus, higher therapeutic potential. Our discovery may be translated to primary cell cultures and, possibly, in vivo studies, with the aim of increasing CPP-mediated transfection efficiency and the likelihood of using CPPs in clinics.
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Affiliation(s)
- Maria Maloverjan
- Institute of Technology, University of Tartu, 1 Nooruse Street, 50411 Tartu, Estonia; (M.M.); (A.A.)
| | - Kärt Padari
- Institute of Molecular and Cell Biology, University of Tartu, 23b Riia Street, 51010 Tartu, Estonia;
| | - Aare Abroi
- Institute of Technology, University of Tartu, 1 Nooruse Street, 50411 Tartu, Estonia; (M.M.); (A.A.)
| | - Ana Rebane
- Institute of Biomedicine and Translational Medicine, University of Tartu, 14b Ravila Street, 50411 Tartu, Estonia;
| | - Margus Pooga
- Institute of Technology, University of Tartu, 1 Nooruse Street, 50411 Tartu, Estonia; (M.M.); (A.A.)
- Correspondence: ; Tel.: +372-737-4836
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9
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Li F, Wu S, Chen N, Zhu J, Zhao X, Zhang P, Zeng Y, Liu Z. Fatty Acid Modification of the Anticancer Peptide LVTX-9 to Enhance Its Cytotoxicity against Malignant Melanoma Cells. Toxins (Basel) 2021; 13:toxins13120867. [PMID: 34941705 PMCID: PMC8708390 DOI: 10.3390/toxins13120867] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/24/2021] [Accepted: 12/01/2021] [Indexed: 01/10/2023] Open
Abstract
Spider venom is a valuable resource for the development of novel anticancer drugs. In this study, we focused on novel linear amphipathic α-helical anticancer peptide LVTX-9, which was derived from the cDNA library of the venom gland of the spider Lycosa vittata. The cytotoxicity of LVTX-9 against murine melanoma cells in the range of 1.56-200 μM was tested and found to be significantly lower than those of most anticancer peptides reported. Its IC50 was determined to be 59.2 ± 19.8 μM in a serum or 76.3 ± 12.7 μM in serum-free medium. Fatty acid modification is a promising strategy for improving peptide performance. Therefore, to enhance the cytotoxic activity of LVTX-9, fatty acid modification of this peptide was performed, and five different carbon chain length lipopeptides named LVTX-9-C12-C20 were produced. Among them, the lipopeptide LVTX-9-C18 showed the highest cytotoxic activity in relation to B16-F10 cells, whether in a serum or serum-free medium. Most importantly, the cytotoxic activity of LVTX-9-C18 was improved by about 12.9 times in a serum medium or 19.3 times in a serum-free medium compared to that of LVTX-9. Subsequently, assays including scanning electron microscopy, trypan blue staining, lactate dehydrogenase leakage assay, and hemolytic activity could indicate that the potential direct cell membrane disruption is the main mechanism of LVTX-9-C18 to induce cancer cell death. Furthermore, the LVTX-9-C18 also showed strong cytotoxicity in relation to 3D B16-F10 spheroids, which indicates it might be a promising lead for developing anticancer drugs.
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Affiliation(s)
- Fengjiao Li
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
| | - Saizhi Wu
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
| | - Ninglin Chen
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
| | - Jingyu Zhu
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
| | - Xinxin Zhao
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
| | - Peng Zhang
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Hunan Normal University), Ministry of Education, College of Chemistry & Chemical Engineering, Changsha 410081, China
- Correspondence: (P.Z.); (Y.Z.); (Z.L.)
| | - Youlin Zeng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Hunan Normal University), Ministry of Education, College of Chemistry & Chemical Engineering, Changsha 410081, China
- Correspondence: (P.Z.); (Y.Z.); (Z.L.)
| | - Zhonghua Liu
- The National and Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, China; (F.L.); (S.W.); (N.C.); (J.Z.); (X.Z.)
- Correspondence: (P.Z.); (Y.Z.); (Z.L.)
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PepFect14 Signaling and Transfection. Methods Mol Biol 2021. [PMID: 34766293 DOI: 10.1007/978-1-0716-1752-6_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
PepFect14 is a cell-penetrating peptide (CPP) derived from stearylated transportan-10 (strearil-TP10) with which it shares the stearic acid residue on C' terminus and the amino acid sequence except for lysines that in PepFect14 are substituted with ornithines. Being non-proteinogenic amino acids, ornithines make PepFect14 less sensitive to serum proteases and due to its positive charges the CPP can form complexes with negatively charged cargos, such as splice correcting oligonucleotides (SCOs), plasmid DNA (pDNA), and proteins. It has been reported that PepFect14/SCO complexes enter the cells mainly through endocytosis, in particular: macopinocitosys and caveolae-mediated endocytosis through the interaction with two receptors of the scavenger receptors class A family (SCARAs). PepFect14 and its complexes trigger the chaperone-mediated autophagy response involving the heat shock protein family (HSP70) whose inhibition leads to an increase of PepFect14 transfection efficacy. Exploiting the interaction between HSP70 and PepFect14 and their ability to form nanoparticle. HSP70 has been delivered in Bomirsky Hamster Melanoma cells (BHM) using PepFect14 of which a protocol is described at the end of this chapter.
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Novel Orthogonally Hydrocarbon-Modified Cell-Penetrating Peptide Nanoparticles Mediate Efficient Delivery of Splice-Switching Antisense Oligonucleotides In Vitro and In Vivo. Biomedicines 2021; 9:biomedicines9081046. [PMID: 34440250 PMCID: PMC8392223 DOI: 10.3390/biomedicines9081046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 11/16/2022] Open
Abstract
Splice-switching therapy with splice-switching oligonucleotides (SSOs) has recently proven to be a clinically applicable strategy for the treatment of several mis-splice disorders. Despite this, wider application of SSOs is severely limited by the inherently poor bioavailability of SSO-based therapeutic compounds. Cell-penetrating peptides (CPPs) are a class of drug delivery systems (DDSs) that have recently gained considerable attention for improving the uptake of various oligonucleotide (ON)-based compounds, including SSOs. One strategy that has been successfully applied to develop effective CPP vectors is the introduction of various lipid modifications into the peptide. Here, we repurpose hydrocarbon-modified amino acids used in peptide stapling for the orthogonal introduction of hydrophobic modifications into the CPP structure during peptide synthesis. Our data show that α,α-disubstituted alkenyl-alanines can be successfully utilized to introduce hydrophobic modifications into CPPs to improve their ability to formulate SSOs into nanoparticles (NPs), and to mediate high delivery efficacy and tolerability both in vitro and in vivo. Conclusively, our results offer a new flexible approach for the sequence-specific introduction of hydrophobicity into the structure of CPPs and for improving their delivery properties.
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Kesharwani K, Singh R, Khan MJ, Vinayak V, Joshi KB. Hydrophobized Short Peptide Amphiphile Functionalized Gold Nanoparticles as Antibacterial Biomaterials. ChemistrySelect 2021. [DOI: 10.1002/slct.202102204] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Khushboo Kesharwani
- Department of Chemistry School of Chemical Science and Technology Dr.Harisingh Gour Vishwavidyalaya (A Central University) Sagar MP 470003 India
| | - Ramesh Singh
- Department of Chemistry School of Chemical Science and Technology Dr.Harisingh Gour Vishwavidyalaya (A Central University) Sagar MP 470003 India
| | - Mohd Jahir Khan
- Diatom Nanoengineering and metabolism lab (DNM) School of Applied Sciences Department of Criminology and Forensic Science Dr. Harisingh Gour Vishwavidyalaya (A Central University) Sagar MP
| | - Vandana Vinayak
- Diatom Nanoengineering and metabolism lab (DNM) School of Applied Sciences Department of Criminology and Forensic Science Dr. Harisingh Gour Vishwavidyalaya (A Central University) Sagar MP
| | - Khashti Ballabh Joshi
- Department of Chemistry School of Chemical Science and Technology Dr.Harisingh Gour Vishwavidyalaya (A Central University) Sagar MP 470003 India
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Internalisation and Biological Activity of Nucleic Acids Delivering Cell-Penetrating Peptide Nanoparticles Is Controlled by the Biomolecular Corona. Pharmaceuticals (Basel) 2021; 14:ph14070667. [PMID: 34358093 PMCID: PMC8308718 DOI: 10.3390/ph14070667] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 12/13/2022] Open
Abstract
Nucleic acid molecules can be transferred into cells to alter gene expression and, thus, alleviate certain pathological conditions. Cell-penetrating peptides (CPPs) are vectors that can be used for transfecting nucleic acids as well as many other compounds. CPPs associate nucleic acids non-covalently, forming stable nanoparticles and providing efficient transfection of cells in vitro. However, in vivo, expected efficiency is achieved only in rare cases. One of the reasons for this discrepancy is the formation of protein corona around nanoparticles, once they are exposed to a biological environment, e.g., blood stream. In this study, we compared protein corona of CPP-nucleic acid nanoparticles formed in the presence of bovine, murine and human serum. We used Western blot and mass-spectrometry to identify the major constituents of protein corona forming around nanoparticles, showing that proteins involved in transport, haemostasis and complement system are its major components. We investigated physical features of nanoparticles and measured their biological efficiency in splice-correction assay. We showed that protein corona constituents might alter the fate of nanoparticles in vivo, e.g., by subjecting them to phagocytosis. We demonstrated that composition of protein corona of nanoparticles is species-specific that leads to dissimilar transfection efficiency and should be considered while developing delivery systems for nucleic acids.
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14
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Tetrahydropiperic acid (THPA) conjugated cationic hybrid dipeptides as antimicrobial agents. J Antibiot (Tokyo) 2021; 74:480-483. [PMID: 33767455 DOI: 10.1038/s41429-021-00419-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/22/2021] [Accepted: 03/07/2021] [Indexed: 11/08/2022]
Abstract
The present work describes the synthesis of hybrid dipeptides H-Lys-Gpn-PEA, C1; H-Lys-β3,3AC6C-PEA, C2, and THPA conjugated dipeptides, THPA-Lys-Gpn-PEA, C3, and THPA-Lys-β3,3AC6C-PEA, C4. All the peptides were evaluated against both Gram-negative and Gram-positive bacterial strains. Among all, peptide C4 exhibited the most potent activity with MIC 1.56 μM against P. aeruginosa (MTCC 424) and S. aureus (MTCC 737). Further, time-kill kinetics, fluorescence assays, and scanning electron microscopy (SEM) studies were performed in order to understand the mechanism of action and efficacy of peptide C4, The fluorescence assays and SEM images demonstrated the bacterial killing through membrane disruption. The peptide C4 exhibited very low hemolytic activity with negligible cytotoxicity against normal human breast cell line FR2.
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15
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Mimicry of Dopamine 1 Receptor Signaling with Cell-Penetrating Peptides. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-020-10066-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
AbstractIn this study, through the use of protein mimicry, a peptide was developed to activate the dopamine 1 receptor signaling pathway from the inside of the cell and in absence of the natural extracellular ligand. The sequence was initially derived from the intracellular interaction site between the activated receptor and the alpha domain of its associated G-protein and subsequently modified to increase its cell-penetrating properties. The peptide was then synthesized via solid phase peptide synthesis, purified and tested on cell models. This novel lipopeptide proved to be capable of efficiently ubiquitously penetrating the cell without the need for transfection agents or chiral recognition by specific pathways. Furthermore, the peptide induced the cellular response normally achieved through the activation of the receptor in cells that had not been treated with the natural ligand. The peptide could work as a candidate substitute to l-DOPA, leading the way for a peptides-based treatment for Parkinson’s disease.
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16
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Transcriptional Profiling Reveals Ribosome Biogenesis, Microtubule Dynamics and Expression of Specific lncRNAs to be Part of a Common Response to Cell-Penetrating Peptides. Biomolecules 2020; 10:biom10111567. [PMID: 33213097 PMCID: PMC7698553 DOI: 10.3390/biom10111567] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 11/13/2020] [Indexed: 12/29/2022] Open
Abstract
Cell-penetrating peptides (CPPs) are short peptides that are able to efficiently penetrate cellular lipid bilayers. Although CPPs have been used as carriers in conjugation with certain cargos to target specific genes and pathways, how rationally designed CPPs per se affect global gene expression has not been investigated. Therefore, following time course treatments with 4 CPPs-penetratin, PepFect14, mtCPP1 and TP10, HeLa cells were transcriptionally profiled by RNA sequencing. Results from these analyses showed a time-dependent response to different CPPs, with specific sets of genes related to ribosome biogenesis, microtubule dynamics and long-noncoding RNAs being differentially expressed compared to untreated controls. By using an image-based high content phenotypic profiling platform we confirmed that differential gene expression in CPP-treated HeLa cells strongly correlates with changes in cellular phenotypes such as increased nucleolar size and dispersed microtubules, compatible with altered ribosome biogenesis and cell growth. Altogether these results suggest that cells respond to different cell penetrating peptides by alteration of specific sets of genes, which are possibly part of the common response to such stimulus.
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17
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Hedegaard SF, Bruhn DS, Khandelia H, Cárdenas M, Nielsen HM. Shuffled lipidation pattern and degree of lipidation determines the membrane interaction behavior of a linear cationic membrane-active peptide. J Colloid Interface Sci 2020; 578:584-597. [DOI: 10.1016/j.jcis.2020.05.121] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/28/2020] [Accepted: 05/30/2020] [Indexed: 11/30/2022]
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18
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NickFect type of cell-penetrating peptides present enhanced efficiency for microRNA-146a delivery into dendritic cells and during skin inflammation. Biomaterials 2020; 262:120316. [PMID: 32896817 DOI: 10.1016/j.biomaterials.2020.120316] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 08/06/2020] [Accepted: 08/10/2020] [Indexed: 02/06/2023]
Abstract
MicroRNAs (miRNAs) are post-transcriptional gene expression regulators with potential therapeutic applications. miR-146a is a negative regulator of inflammatory processes in both tissue-resident and specialized immune cells and may therefore have therapeutic effect in inflammatory skin diseases. PepFect (PF) and NickFect (NF) type of cell-penetrating peptides (CPPs) have previously been shown to deliver miRNA mimics and/or siRNAs into cell cultures and in vivo. Here, we first demonstrate that selected PF- and NF-type of CPPs support delivery of fluorescent labelled miRNA mimics into keratinocytes (KCs) and dendritic cells (DCs). Second, we show that both PF- and NF-miR-146a nanocomplexes were equally effective in KCs, while NFs were more efficient in DCs as assessed by downregulation of miR-146a-influenced genes. None of miRNA nanocomplexes with the tested CPPs influenced the viability of KCs and DCs nor caused activation of DCs according to CD86 and CD83 markers. Transmission electron microscopy analysis with Nanogold-labelled miR-146a mimics and assessment of endocytic trafficking pathways revealed endocytosis as an active route of delivery in both KCs and DCs for all tested CPPs. However, consistent with the higher efficiency, NF-delivered miR-146a was detected more often outside endosomes in DCs. Finally, pre-injection of NF71:miR-146a nanocomplexes was confirmed to suppress inflammatory responses in a mouse model of irritant contact dermatitis as shown by reduced ear swelling response and downregulation of pro-inflammatory cytokines, including IL-6, IL-1β, IL-33 and TNF-α. In conclusion, NF71 efficiently delivers miRNA mimics into KCs as well as DCs, and therefore may have advantage in therapeutic delivery of miRNAs in case of inflammatory skin diseases.
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19
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Song J, Ma P, Huang S, Wang J, Xie H, Jia B, Zhang W. Acylation of the antimicrobial peptide CAMEL for cancer gene therapy. Drug Deliv 2020; 27:964-973. [PMID: 32611259 PMCID: PMC8216477 DOI: 10.1080/10717544.2020.1787556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Obtaining ideal gene delivery vectors is still a major goal in cancer gene therapy. CAMEL, a short hybrid antimicrobial peptide, can kill cancer cells by membrane lysis. In this study, we constructed a series of non-viral vectors by attaching fatty acids with different chain lengths to the N-terminus of CAMEL. Our results showed that the cellular uptake and transfection efficiency of acyl-CAMEL started to significantly increase from a chain length of 12 carbons. C18-CAMEL was screened for gene delivery because it had the highest transfection efficiency. Surprisingly, C18-CAMEL/plasmid complexes displayed strong endosomal escape activity after entering cells via endocytosis. Importantly, C18-CAMEL could deliver p53 plasmids to cancer cells and significantly inhibited cell proliferation by the expression of p53. In addition, the C18-CAMEL/p53 plasmid complexes and the MDM2 inhibitor nutlin-3a showed significantly synergistic anticancer activity against MCF-7 cells expressing wild-type p53. Conclusively, our study demonstrated that conjugation of stearic acid to antimicrobial peptides is a simple and successful approach for constructing efficient and economical non-viral vectors for cancer gene therapy.
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Affiliation(s)
- Jingjing Song
- The Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Panpan Ma
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Sujie Huang
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Juanli Wang
- Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Huan Xie
- The Institute of Pharmacology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Bo Jia
- Institute of Physiology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Wei Zhang
- Institute of Physiology, Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
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20
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Yang S, Wang D, Sun Y, Zheng B. Delivery of antisense oligonucleotide using polyethylenimine-based lipid nanoparticle modified with cell penetrating peptide. Drug Deliv 2020; 26:965-974. [PMID: 31544540 PMCID: PMC6764372 DOI: 10.1080/10717544.2019.1667453] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Efficient and stable delivery system of antisense oligonucleotide (ASO) is important and urgently needed. Here, an ASO delivery system, Lp-PPRP, which contains a cationic polymer based on PEI (branched, 25 kDa), named PEI-PC and a palmitic acid modified R8 (R8-PA) was prepared to deliver a kind of ASO, LOR-2501. The characteristics of the nanoparticles and the cellular uptake of LOR-2501 in HeLa cells and A549 cells were studied. Lp-PPRP showed suitable particle size and zeta potential to combine with LOR-2501; the particle size and zeta potential of Lp-PPRP/LOR were 276.87 ± 5.63 nm and 18.03 ± 0.25 mV. In vitro experiments suggested that Lp-PPRP had lower cytotoxic and higher transfection efficiency for delivering LOR-2501 compared with PEI. The addition of PEI-PC and R8-PA contributed to enhance the transfection efficiency of the nanoparticles. In HeLa cells and A549 cells, Lp-PPRP could transport LOR-2501 and down-regulate the level of R1 protein efficiently, and the R1 down regulations were 64.56% and 66.34%, respectively. Results suggested potential utility of Lp-PPRP in the development of ASO in tumor therapy.
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Affiliation(s)
- Shuang Yang
- School of Basic Medical Sciences, Shanxi Medical University , Taiyuan , China
| | - Dandan Wang
- Affiliated Hospital, Changchun University of Chinese Medicine , Changchun , China
| | - Yaojun Sun
- School of Basic Medical Sciences, Shanxi Medical University , Taiyuan , China
| | - Bin Zheng
- School of Pharmacy, Shanxi Medical University , Taiyuan , China
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21
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Gestin M, Helmfors H, Falato L, Lorenzon N, Michalakis FI, Langel Ü. Effect of small molecule signaling in PepFect14 transfection. PLoS One 2020; 15:e0228189. [PMID: 31999754 PMCID: PMC6992163 DOI: 10.1371/journal.pone.0228189] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 01/10/2020] [Indexed: 12/25/2022] Open
Abstract
Cell-penetrating peptides can be used to deliver oligonucleotide-based cargoes into cells. Previous studies have shown that the use of small molecule drugs could be an efficient method to increase the efficacy of delivery of oligonucleotides by cell-penetrating peptides either as targeting agents that can be used in formulation with the cell-penetrating peptide and its cargo or as cell signaling modulators that facilitates the cellular uptake of the treatment. This study presents two aims. The first aim is the identification of small molecule drugs that would induce a synergic effect on the transfection of splice correcting oligonucleotides assisted by PepFect14. The second aim is to identify the mechanisms behind the effect of small molecule drugs modulation of cell-penetrating peptide assisted transfection of oligonucleotides. Through an optimized, high-throughput luciferase assay for short oligonucleotide delivery using cell-penetrating peptides, and the simultaneous addition of a small molecule drug library, we show that three small molecule drugs (MPEP, VU0357121 and Ciproxifan) induced an increase in the transfection efficacy of PepFect14 in complex with a short single-stranded oligonucleotide in HeLa pLuc705 cells. These three drugs are described in the literature to be highly specific for their respective target receptors. However, none of those receptors are expressed in our cell line, indicating a yet non-described pathway of action for these small molecules. We show that the indicated small molecules, without interfering with the particles formed by PepFect14 and the oligonucleotide, interfere via still unidentified interactions in cell signaling, leading to an up-regulation of endocytosis and a higher efficacy in the delivery of short splice correcting oligonucleotides in complex with PepFect14.
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Affiliation(s)
- Maxime Gestin
- Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden
- * E-mail:
| | - Henrik Helmfors
- Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden
| | - Luca Falato
- Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden
| | - Nicola Lorenzon
- Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden
| | | | - Ülo Langel
- Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden
- Laboratory of Molecular Biotechnology, Institute of Technology, University of Tartu, Nooruse, Tartu, Estonia
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22
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Singh R, Mishra NK, Gupta P, Joshi KB. Self-assembly of a Sequence-shuffled Short Peptide Amphiphile Triggered by Metal Ions into Terraced Nanodome-like Structures. Chem Asian J 2020; 15:531-539. [PMID: 31899579 DOI: 10.1002/asia.201901715] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Indexed: 01/13/2023]
Abstract
We highlight the structural diversity of strategically designed two short peptide amphiphiles (sPAs) and describe their structure-function relationship studies. The shuffling of two key amino acids, that is, tyrosine and phenylalanine, in a designed sPA lead to a pair of constitutional isomers. Such small and strategic alteration can bring a substantial change in the self-assembling pattern. Inspired from the naturally occurring metallopeptides, bioactive transition-metal ions were used for constructing the unusual nanostructures. Use of appropriate metal ions created bigger differences between the properties of these isomers and hence the self-assembly. Coordination of appropriate transition metal ions modifies the internal nanoscale structures of sPA, thus leading to the formation of vertically stacked terraced layers with decreasing size, which possess a high degree of dimensional regularity. We propose that such metal-induced terraced nanodome-like hierarchical self-assembly may have relevance for specific biotechnology applications.
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Affiliation(s)
- Ramesh Singh
- Department of Chemistry, School of Chemical Science and Technology, Dr. Harisingh Gour Central University, Sagar, MP, 470003, India
| | - Narendra Kumar Mishra
- Indian Institute of Technology, Kanpur, 208016, India.,Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Denmark
| | - Puneet Gupta
- Department of Chemistry, Indian Institute of Technology, Roorkee, 247667, India
| | - Khashti Ballabh Joshi
- Department of Chemistry, School of Chemical Science and Technology, Dr. Harisingh Gour Central University, Sagar, MP, 470003, India
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23
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Zhang P, Jian C, Jian S, Zhang Q, Sun X, Nie L, Liu B, Li F, Li J, Liu M, Liang S, Zeng Y, Liu Z. Position Effect of Fatty Acid Modification on the Cytotoxicity and Antimetastasis Potential of the Cytotoxic Peptide Lycosin-I. J Med Chem 2019; 62:11108-11118. [DOI: 10.1021/acs.jmedchem.9b01126] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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24
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Song J, Qian Z, Sahni A, Chen K, Pei D. Cyclic Cell-Penetrating Peptides with Single Hydrophobic Groups. Chembiochem 2019; 20:2085-2088. [PMID: 31298779 DOI: 10.1002/cbic.201900370] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Indexed: 12/18/2022]
Abstract
A new family of cyclic cell-penetrating peptides (CPPs) has been discovered; they differ from previously reported cyclic CPPs by containing only a single hydrophobic residue. The optimal CPP structure consists of four arginine residues and a hydrophobic residue with a long alkyl chain (e.g., a decyl group) in a cyclohexapeptide ring. The most active member of this family, CPP 17, has an intrinsic cellular entry efficiency similar to that of cyclic CPP12, the most active CPP reported to date. However, CPP 17 is 2.8 times more active than CPP12 under high serum protein concentrations, presumably because of the lower protein binding. CPP 17 enters the cell primarily by direct translocation at a relatively low concentration (≥5 μm).
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Affiliation(s)
- Jian Song
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12th Avenue, Columbus, Ohio, 43210, USA.,School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong Province, 510006, China
| | - Ziqing Qian
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12th Avenue, Columbus, Ohio, 43210, USA
| | - Ashweta Sahni
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12th Avenue, Columbus, Ohio, 43210, USA
| | - Kuangyu Chen
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12th Avenue, Columbus, Ohio, 43210, USA
| | - Dehua Pei
- Department of Chemistry and Biochemistry, The Ohio State University, 484 West 12th Avenue, Columbus, Ohio, 43210, USA
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25
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van der Bent ML, Paulino da Silva Filho O, Willemse M, Hällbrink M, Wansink DG, Brock R. The nuclear concentration required for antisense oligonucleotide activity in myotonic dystrophy cells. FASEB J 2019; 33:11314-11325. [PMID: 31311315 DOI: 10.1096/fj.201900263r] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Antisense oligonucleotides (ASOs) are a promising class of therapeutics that are starting to emerge in the clinic. Determination of intracellular concentrations required for biologic effects and identification of effective delivery vehicles are crucial for understanding the mode of action and required dosing. Here, we investigated which nuclear oligonucleotide concentration is needed for a therapeutic effect for a triplet repeat-targeting ASO in a muscle cell model of myotonic dystrophy type 1 (DM1). For cellular delivery, ASOs were complexed into nanoparticles using the cationic cell-penetrating peptides nona-arginine and PepFect14 (PF14). Although both peptides facilitated uptake, only PF14 led to a dose-dependent correction of disease-typical abnormal splicing. In line with this observation, time-lapse confocal microscopy demonstrated that only PF14 mediated translocation of the ASOs to the nucleus, which is the main site of action. Through fluorescence lifetime imaging, we could distinguish intact oligonucleotide from free fluorophore, showing that PF14 also shielded the ASOs from degradation. Finally, we employed a combination of live-cell fluorescence correlation spectroscopy and immunofluorescence microscopy and demonstrated that intranuclear blocking-type oligonucleotide concentrations in the upper nanomolar range were required to dissolve nuclear muscleblind-like protein 1 foci, a hallmark of DM1. Our findings have important implications for the clinical use of ASOs in DM1 and provide a basis for further research on other types of ASOs.-Van der Bent, M. L., Paulino da Silva Filho, O., Willemse, M., Hällbrink, M., Wansink, D. G., Brock, R. The nuclear concentration required for antisense oligonucleotide activity in myotonic dystrophy cells.
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Affiliation(s)
- M Leontien van der Bent
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Biochemistry, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Omar Paulino da Silva Filho
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center, Nijmegen, The Netherlands.,Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Foundation, Ministry of Education of Brazil, Brasilia, Brazil
| | - Marieke Willemse
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Mattias Hällbrink
- Department of Neurochemistry, Stockholm University, Stockholm, Sweden
| | - Derick G Wansink
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Roland Brock
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences (RIMLS), Radboud University Medical Center, Nijmegen, The Netherlands
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26
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Zhang P, Ma J, Zhang Q, Jian S, Sun X, Liu B, Nie L, Liu M, Liang S, Zeng Y, Liu Z. Monosaccharide Analogues of Anticancer Peptide R-Lycosin-I: Role of Monosaccharide Conjugation in Complexation and the Potential of Lung Cancer Targeting and Therapy. J Med Chem 2019; 62:7857-7873. [DOI: 10.1021/acs.jmedchem.9b00634] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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27
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Feiner-Gracia N, Olea RA, Fitzner R, El Boujnouni N, van Asbeck AH, Brock R, Albertazzi L. Super-resolution Imaging of Structure, Molecular Composition, and Stability of Single Oligonucleotide Polyplexes. NANO LETTERS 2019; 19:2784-2792. [PMID: 31001985 PMCID: PMC6509642 DOI: 10.1021/acs.nanolett.8b04407] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 04/11/2019] [Indexed: 05/20/2023]
Abstract
The successful application of gene therapy relies on the development of safe and efficient delivery vectors. Cationic polymers such as cell-penetrating peptides (CPPs) can condense genetic material into nanoscale particles, called polyplexes, and induce cellular uptake. With respect to this point, several aspects of the nanoscale structure of polyplexes have remained elusive because of the difficulty in visualizing the molecular arrangement of the two components with nanometer resolution. This limitation has hampered the rational design of polyplexes based on direct structural information. Here, we used super-resolution imaging to study the structure and molecular composition of individual CPP-mRNA polyplexes with nanometer accuracy. We use two-color direct stochastic optical reconstruction microscopy (dSTORM) to unveil the impact of peptide stoichiometry on polyplex structure and composition and to assess their destabilization in blood serum. Our method provides information about the size and composition of individual polyplexes, allowing the study of such properties on a single polyplex basis. Furthermore, the differences in stoichiometry readily explain the differences in cellular uptake behavior. Thus, quantitative dSTORM of polyplexes is complementary to the currently used characterization techniques for understanding the determinants of polyplex activity in vitro and inside cells.
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Affiliation(s)
- Natalia Feiner-Gracia
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering of Catalonia
(IBEC), The Barcelona Institute of Science
and Technology (BIST), Carrer Baldiri
Reixac 15-21, 08024 Barcelona, Spain
- Department
of Biomedical Engineering, Institute for Complex Molecular Systems
(ICMS), Eindhoven University of Technology, 5612AZ Eindhoven, The Netherlands
| | - R. Alis Olea
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering of Catalonia
(IBEC), The Barcelona Institute of Science
and Technology (BIST), Carrer Baldiri
Reixac 15-21, 08024 Barcelona, Spain
- Department
of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Robert Fitzner
- Department
of Mathematics and Computer Science, Eindhoven
University of Technology, Post Office
Box 513, 5600 MD Eindhoven, The Netherlands
| | - Najoua El Boujnouni
- Department
of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alexander H. van Asbeck
- Department
of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Roland Brock
- Department
of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Lorenzo Albertazzi
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering of Catalonia
(IBEC), The Barcelona Institute of Science
and Technology (BIST), Carrer Baldiri
Reixac 15-21, 08024 Barcelona, Spain
- Department
of Biomedical Engineering, Institute for Complex Molecular Systems
(ICMS), Eindhoven University of Technology, 5612AZ Eindhoven, The Netherlands
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28
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Amoura M, Illien F, Joliot A, Guitot K, Offer J, Sagan S, Burlina F. Head to tail cyclisation of cell-penetrating peptides: impact on GAG-dependent internalisation and direct translocation. Chem Commun (Camb) 2019; 55:4566-4569. [PMID: 30931466 DOI: 10.1039/c9cc01265f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A series of cyclic lipidated oligo-Arg cell penetrating peptides were synthesised with varied macrocycle size and lipid chain anchoring site. The study of their cellular uptake revealed different structural requirements to promote efficient glycosaminoglycan-dependent endocytosis and direct translocation.
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Affiliation(s)
- Mehdi Amoura
- Sorbonne Université, École normale supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France.
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29
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Porosk L, Arukuusk P, Põhako K, Kurrikoff K, Kiisholts K, Padari K, Pooga M, Langel Ü. Enhancement of siRNA transfection by the optimization of fatty acid length and histidine content in the CPP. Biomater Sci 2019; 7:4363-4374. [DOI: 10.1039/c9bm00688e] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Depending on the pH, polyhistidines in the CPP influence interactions in CPP/siRNA nanoparticles by switching from hydrophobic to charged.
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Affiliation(s)
- Ly Porosk
- Institute of Technology
- University of Tartu
- Tartu
- Estonia
| | | | - Kaisa Põhako
- Institute of Technology
- University of Tartu
- Tartu
- Estonia
| | | | | | - Kärt Padari
- Institute of Molecular and Cell Biology
- University of Tartu
- Tartu
- Estonia
| | - Margus Pooga
- Institute of Technology
- University of Tartu
- Tartu
- Estonia
| | - Ülo Langel
- Institute of Technology
- University of Tartu
- Tartu
- Estonia
- Department of Biochemistry and Biophysics
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30
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Morais CM, Cardoso AM, Cunha PP, Aguiar L, Vale N, Lage E, Pinheiro M, Nunes C, Gomes P, Reis S, Castro MMCA, Pedroso de Lima MC, Jurado AS. Acylation of the S4 13-PV cell-penetrating peptide as a means of enhancing its capacity to mediate nucleic acid delivery: Relevance of peptide/lipid interactions. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:2619-2634. [PMID: 30291923 DOI: 10.1016/j.bbamem.2018.10.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 09/09/2018] [Accepted: 10/02/2018] [Indexed: 11/20/2022]
Abstract
BACKGROUND Cell-penetrating peptides (CPPs) have been extensively exploited in gene therapy approaches as vectors for intracellular delivery of bioactive molecules. The ability of CPPs to be internalized into cells and their capacity to complex nucleic acids depend on their molecular structure, both primary and secondary, namely regarding hydrophobicity/hydrophilicity. CPP acylation has been used as a strategy to improve this structural feature. METHODS Acyl groups (from 6 to 18 carbon atoms) were attached to the S413-PV peptide and their effects on the peptide competence to complex siRNAs and to mediate gene silencing in glioblastoma (GBM) cells were studied. A systematic characterization of membrane interactions with S413-PV acyl-derivatives was also conducted, using different biophysical techniques (surface pressure-area isotherms in Langmuir monolayers, DSC and 31P NMR) to unravel a relationship between CPP biological activity and CPP effects on membrane stability and lipid organization. RESULTS A remarkable concordance was noticed between acylated-S413-PV peptide competence to promote gene silencing in GBM cells and disturbance induced in membrane models, the lauroyl- and myristoyl-S413-PV peptides being the most effective. A cut-off effect was described for the first time regarding the influence of acyl-chain length on CPP bioactivity. CONCLUSIONS C12-S413-PV showed high capacity to destabilize lipid bilayers, to escape from lysosomal degradation and to mediate gene silencing without promoting cytotoxicity. GENERAL SIGNIFICANCE Besides unraveling a new CPP with high potential to be employed as a gene delivery vector, this work emphasizes the benefit from allying biophysical and biological studies towards a proper CPP structural refinement for successful pre-clinical/clinical application.
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Affiliation(s)
- Catarina M Morais
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Coimbra, Portugal
| | - Ana M Cardoso
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Pedro P Cunha
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Luísa Aguiar
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Nuno Vale
- UCIBIO-REQUIMTE, Laboratory of Pharmacology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Emílio Lage
- LAQV-REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Marina Pinheiro
- LAQV-REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Cláudia Nunes
- LAQV-REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Paula Gomes
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Porto, Portugal
| | - Salette Reis
- LAQV-REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - M Margarida C A Castro
- Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Coimbra, Portugal; Coimbra Chemistry Center, University of Coimbra, Coimbra, Portugal
| | | | - Amália S Jurado
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Coimbra, Portugal.
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Jian C, Zhang P, Ma J, Jian S, Zhang Q, Liu B, Liang S, Liu M, Zeng Y, Liu Z. The Roles of Fatty-Acid Modification in the Activity of the Anticancer Peptide R-Lycosin-I. Mol Pharm 2018; 15:4612-4620. [DOI: 10.1021/acs.molpharmaceut.8b00605] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Saher O, Rocha CSJ, Zaghloul EM, Wiklander OPB, Zamolo S, Heitz M, Ezzat K, Gupta D, Reymond JL, Zain R, Hollfelder F, Darbre T, Lundin KE, El Andaloussi S, Smith CIE. Novel peptide-dendrimer/lipid/oligonucleotide ternary complexes for efficient cellular uptake and improved splice-switching activity. Eur J Pharm Biopharm 2018; 132:29-40. [PMID: 30193928 DOI: 10.1016/j.ejpb.2018.09.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/15/2018] [Accepted: 09/03/2018] [Indexed: 12/24/2022]
Abstract
Despite the advances in gene therapy and in oligonucleotide (ON) chemistry, efficient cellular delivery remains an obstacle. Most current transfection reagents suffer from low efficacy or high cytotoxicity. In this report, we describe the synergism between lipid and dendrimer delivery vectors to enhance the transfection efficiency, while avoiding high toxicity. We screened a library of 20 peptide dendrimers representing three different generations and evaluated their capability to deliver a single-stranded splice-switching ON after formulating with lipids (DOTMA/DOPE). The transfection efficiency was analyzed in 5 reporter cell lines, in serum-free and serum conditions, and with 5 different formulation protocols. All formulations displayed low cytotoxicity to the majority of the tested cell lines. The complex sizes were < 200 nm; particle size distributions of effective mixtures were < 80 nm; and, the zeta potential was dependent on the formulation buffer used. The best dendrimer enhanced transfection in a HeLa reporter cell line by 30-fold compared to untreated cells under serum-free conditions. Interestingly, addition of sucrose to the formulation enabled - for the first time - peptide dendrimers/lipid complexes to efficiently deliver splice-switching ON in the presence of serum, reaching 40-fold increase in splice switching. Finally, in vivo studies highlighted the potential of these formulae to change the biodistribution pattern to be more towards the liver (90% of injected dose) compared to the kidneys (5% of injected dose) or to unformulated ON. This success encourages further development of peptide dendrimer complexes active in serum and future investigation of mechanisms behind the influence of additives on transfection efficacy.
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Affiliation(s)
- Osama Saher
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden; Department Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Cristina S J Rocha
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Eman M Zaghloul
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Oscar P B Wiklander
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Susanna Zamolo
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Marc Heitz
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Kariem Ezzat
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Dhanu Gupta
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Jean-Louis Reymond
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Rula Zain
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden; Department of Clinical Genetics, Centre for Rare Diseases, Karolinska University Hospital, SE-171 76 Stockholm, Sweden
| | - Florian Hollfelder
- Department of Biochemistry, University of Cambridge 80 Tennis Court Road, Cambridge CB2 1GA, UK
| | - Tamis Darbre
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Karin E Lundin
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - Samir El Andaloussi
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden
| | - C I Edvard Smith
- Department of Laboratory Medicine, Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, 141 86 Huddinge, Sweden.
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Tomassi S, Ieranò C, Mercurio ME, Nigro E, Daniele A, Russo R, Chambery A, Baglivo I, Pedone PV, Rea G, Napolitano M, Scala S, Cosconati S, Marinelli L, Novellino E, Messere A, Di Maro S. Cationic nucleopeptides as novel non-covalent carriers for the delivery of peptide nucleic acid (PNA) and RNA oligomers. Bioorg Med Chem 2018; 26:2539-2550. [PMID: 29656988 DOI: 10.1016/j.bmc.2018.04.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 04/05/2018] [Accepted: 04/06/2018] [Indexed: 12/12/2022]
Abstract
Cationic nucleopeptides belong to a family of synthetic oligomers composed by amino acids and nucleobases. Their capability to recognize nucleic acid targets and to cross cellular membranes provided the basis for considering them as novel non-covalent delivery agents for nucleic acid pharmaceuticals. Herein, starting from a 12-mer nucleopeptide model, the number of cationic residues was modulated in order to obtain new nucleopeptides endowed with high solubility in acqueous medium, acceptable bio-stability, low cytotoxicity and good capability to bind nucleic acid. Two candidates were selected to further investigate their potential as nucleic acid carriers, showing higher efficiency to deliver PNA in comparison with RNA. Noteworthy, this study encourages the development of nucleopeptides as new carriers to extend the known strategies for those nucleic acid analogues, especially PNA, that still remain difficult to drive into the cells.
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Affiliation(s)
- Stefano Tomassi
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Caterina Ieranò
- Molecular Immunology and Immunoregulation, Istituto Nazionale Tumori "Fondazione G. Pascale", IRCCS-Napoli, 80131 Naples, Italy
| | - Maria Emilia Mercurio
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Ersilia Nigro
- Department of Cardiothoracic and Respiratory Sciences, University of Campania "Luigi Vanvitelli", Via Leonardo Bianchi c/o Ospedale Monaldi, 80131 Naples, Italy
| | - Aurora Daniele
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy; Ceinge-Biotecnologie Avanzate S.c.a r.l., Via G. Salvatore 486, 80145 Napoli, Italy
| | - Rosita Russo
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Angela Chambery
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Ilaria Baglivo
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Paolo Vincenzo Pedone
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Giuseppina Rea
- Molecular Immunology and Immunoregulation, Istituto Nazionale Tumori "Fondazione G. Pascale", IRCCS-Napoli, 80131 Naples, Italy
| | - Maria Napolitano
- Molecular Immunology and Immunoregulation, Istituto Nazionale Tumori "Fondazione G. Pascale", IRCCS-Napoli, 80131 Naples, Italy
| | - Stefania Scala
- Molecular Immunology and Immunoregulation, Istituto Nazionale Tumori "Fondazione G. Pascale", IRCCS-Napoli, 80131 Naples, Italy
| | - Sandro Cosconati
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Luciana Marinelli
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Napoli, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Napoli, Italy
| | - Anna Messere
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy.
| | - Salvatore Di Maro
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy.
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Simultaneous membrane interaction of amphipathic peptide monomers, self-aggregates and cargo complexes detected by fluorescence correlation spectroscopy. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:491-504. [DOI: 10.1016/j.bbamem.2017.09.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 09/05/2017] [Accepted: 09/25/2017] [Indexed: 12/17/2022]
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Kurrikoff K, Veiman KL, Künnapuu K, Peets EM, Lehto T, Pärnaste L, Arukuusk P, Langel Ü. Effective in vivo gene delivery with reduced toxicity, achieved by charge and fatty acid -modified cell penetrating peptide. Sci Rep 2017; 7:17056. [PMID: 29213085 PMCID: PMC5719086 DOI: 10.1038/s41598-017-17316-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/22/2017] [Indexed: 11/09/2022] Open
Abstract
Non-viral gene delivery systems have gained considerable attention as a promising alternative to viral delivery to treat diseases associated with aberrant gene expression. However, regardless of extensive research, only a little is known about the parameters that underline in vivo use of the nanoparticle-based delivery vectors. The modest efficacy and low safety of non-viral delivery are the two central issues that need to be addressed. We have previously characterized an efficient cell penetrating peptide, PF14, for in vivo applications. In the current work, we first develop an optimized formulation of PF14/pDNA nanocomplexes, which allows removal of the side-effects without compromising the bioefficacy in vivo. Secondly, based on the physicochemical complex formation studies and biological efficacy assessments, we develop a series of PF14 modifications with altered charge and fatty acid content. We show that with an optimal combination of overall charge and hydrophobicity in the peptide backbone, in vivo gene delivery can be augmented. Further combined with the safe formulation, systemic gene delivery lacking any side effects can be achieved.
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Affiliation(s)
- Kaido Kurrikoff
- Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia. .,Institute of Technology, University of Tartu, Tartu, 50411, Estonia.
| | - Kadi-Liis Veiman
- Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia
| | - Kadri Künnapuu
- Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia
| | - Elin Madli Peets
- Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia
| | - Tõnis Lehto
- Department of Neurochemistry, The Arrhenius Laboratories for Natural Sciences, Stockholm University, SE-10691, Stockholm, Sweden
| | - Ly Pärnaste
- Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia
| | - Piret Arukuusk
- Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia
| | - Ülo Langel
- Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia.,Department of Neurochemistry, The Arrhenius Laboratories for Natural Sciences, Stockholm University, SE-10691, Stockholm, Sweden
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Zhang P, Ma J, Yan Y, Chen B, Liu B, Jian C, Zhu B, Liang S, Zeng Y, Liu Z. Arginine modification of lycosin-I to improve inhibitory activity against cancer cells. Org Biomol Chem 2017; 15:9379-9388. [DOI: 10.1039/c7ob02233f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Herein, arginine modification rendered Lycosin-I with higher anticancer activity, penetrability, and dissemination ability against solid tumor cells due to the optimized physicochemical properties and high serum stability.
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