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Miyoshi Y, Kadono M, Okazaki S, Nishimura A, Kitamatsu M, Watanabe K, Ohtsuki T. Endosomal Escape of Peptide-Photosensitizer Conjugates Is Affected by Amino Acid Sequences near the Photosensitizer. Bioconjug Chem 2020; 31:916-922. [DOI: 10.1021/acs.bioconjchem.0c00046] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuichi Miyoshi
- Department of Medical Bioengineering, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
| | - Maho Kadono
- Department of Medical Bioengineering, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
| | - Shigetoshi Okazaki
- Preeminent Medical Photonics Education and Research Center, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan
| | - Ayano Nishimura
- Department of Applied Chemistry, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Mizuki Kitamatsu
- Department of Applied Chemistry, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Kazunori Watanabe
- Department of Medical Bioengineering, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
- Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
| | - Takashi Ohtsuki
- Department of Medical Bioengineering, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
- Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
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102
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Zarei M, Rahbar MR, Negahdaripour M, Morowvat MH, Nezafat N, Ghasemi Y. Cell Penetrating Peptide: Sequence-Based Computational Prediction for Intercellular Delivery of Arginine Deiminase. CURR PROTEOMICS 2020. [DOI: 10.2174/1570164616666190701120351] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:Cell-Penetrating Peptides (CPPs), a family of short peptides, are broadly used as the carrier in the delivery of drugs and different therapeutic agents. Thanks to the existence of valuable databases, computational screening of the experimentally validated CPPs can help the researchers to select more effective CPPs for the intercellular delivery of therapeutic proteins. Arginine deiminase of Mycoplasma hominis, an arginine-degrading enzyme, is currently in the clinical trial for treating several arginine auxotrophic cancers. However, some tumor cells have developed resistance to ADI treatment. The ADI resistance arises from the over-expression of argininosuccinate synthetase 1 enzyme, which is involved in arginine synthesis. Intracellular delivery of ADI into tumor cells is suggested as an efficient approach to overcome the aforesaid drawback.Objective:In this study, in-silico tools were used for evaluating the experimentally validated CPPs to select the best CPP candidates for the intracellular delivery of ADI.Results:In this regard, 150 CPPs of protein cargo available at CPPsite were retrieved and evaluated by the CellPPD server. The best CPP candidates for the intracellular delivery of ADI were selected based on stability and antigenicity of the ADI-CPP fusion form. The conjugated forms of ADI with each of the three CPPs including EGFP-hcT (9-32), EGFP-ppTG20, and F(SG)4TP10 were stable and nonantigenic; thus, these sequences were introduced as the best CPP candidates for the intracellular delivery of ADI. In addition, the proposed CPPs had appropriate positive charge and lengths for an efficient cellular uptake.Conclusion:These three introduced CPPs not only are appropriate for the intracellular delivery of ADI, but also can overcome the limitation of its therapeutic application, including short half-life and antigenicity.
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Affiliation(s)
- Mahboubeh Zarei
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Rahbar
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Manica Negahdaripour
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Navid Nezafat
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Younes Ghasemi
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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103
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Zhou X, Hao R, Chen C, Su Z, Zhao L, Luo Z, Xie W. Rapid Delivery of Nanobodies/V HHs into Living Cells via Expressing In Vitro-Transcribed mRNA. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2020; 17:401-408. [PMID: 32128345 PMCID: PMC7044678 DOI: 10.1016/j.omtm.2020.01.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/17/2020] [Indexed: 11/09/2022]
Abstract
Intracellular antigen labeling and manipulation by antibodies have been long-thought goals in the field of cell research and therapy. However, a central limitation for this application is that antibodies are not able to penetrate into the cytosol of living cells. Taking advantages of small sizes and unique structures of the single-domain antibodies, here, we presented a novel approach to rapidly deliver the nanobody/variable domain of heavy chain of heavy-chain antibody (VHH) into living cells via introducing its coding mRNA, which was generated by in vitro transcription. We demonstrated that actin-green fluorescent proteins (GFP) and Golgi-GFP can be recognized by the anti-GFP nanobody/VHH, vimentin can be recognized by the anti-vimentin nanobody/VHH, and histone deacetylase 6 (HDAC6) can be recognized by the anti-HDAC6 nanobody/VHH, respectively. We found that the anti-GFP nanobody expressed via in vitro-transcribed (IVT) mRNA can be detected in 3 h and degraded in 48 h after transfection, whereas the nanobody expressed via plasmid DNA, was not detected until 24 h after transfection. As a result, it is effective in delivering the nanobody through expressing the nanobody/VHH in living cells from its coding mRNA.
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Affiliation(s)
- Xuechen Zhou
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, 2 Sipailou Road, Nanjing 210096, China
| | - Rui Hao
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, 2 Sipailou Road, Nanjing 210096, China
| | - Chen Chen
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, 2 Sipailou Road, Nanjing 210096, China
| | - Zhipeng Su
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, 2 Sipailou Road, Nanjing 210096, China
| | - Linhong Zhao
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, 2 Sipailou Road, Nanjing 210096, China
| | - Zhuojuan Luo
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, 2 Sipailou Road, Nanjing 210096, China
| | - Wei Xie
- The Key Laboratory of Developmental Genes and Human Disease, School of Life Science and Technology, Southeast University, 2 Sipailou Road, Nanjing 210096, China
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104
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Vahabpour R, Basimi P, Roohvand F, Asadi H, Irani GM, Zabihollahi R, Bolhassani A. Anti-viral Effects of Superpositively Charged Mutant of Green Fluorescent Protein. Protein Pept Lett 2020; 26:930-939. [PMID: 31441722 DOI: 10.2174/0929866526666190823145916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 07/14/2019] [Accepted: 08/02/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Supercharged GFP proteins were known as effective carriers for delivery of macromolecules into eukaryotic cells as well as fluorescent fusion tags for in vitro and in vivo detection. OBJECTIVE Herein, anti-viral effects of +36 GFP and its anti-tumor effects were studied in vitro and in vivo, respectively. METHODS We evaluated anti-HIV, anti-HSV, and anti-HCV effects of +36 GFP in vitro using ELISA, and real time PCR as common techniques for their detection, respectively. Moreover, we assessed the role of +36 GFP for eliciting HPV-related anti-tumor effects in mice due to the lack of HPV replication in vitro. RESULTS Our data showed that +36 GFP efficiently enter the cells and augment the transfection rate of HPV16E7 antigen, as well. Furthermore, +36 GFP significantly reduced HCV, HIV and HSV replication up to 75%, 49% and 43% in HCV-infected Huh7.5 cells, HIV-infected Hela cells and HSV-infected Vero cells, respectively. On the other hand, mice immunization with +36 GFP complexed with HPV16 E7 antigen (+36GFP + E7) or fused to HPV16 E7 antigen (+36GFP-E7) elicited a higher Th1 cellular immune response with the predominant IgG2a, IgG2b, IFN-γ and Granzyme B levels than those induced by other groups. These regimens protected mice against TC- 1 tumor challenge (~ 67%) compared to E7 protein alone (~ 33%). These data suggested that +36 GFP can act as an anti-viral agent at certain dose due to its high efficiency in cell penetration in vitro and in vivo. CONCLUSION Generally, +36 GFP targets viral replication in vitro as well as helps to suppress the growth of HPV-related tumors in vivo.
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Affiliation(s)
- Rouhollah Vahabpour
- Department of Medical Lab Technology, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences; Tehran, Iran
| | - Parya Basimi
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Farzin Roohvand
- Department of Virology, Pasteur Institute of Iran, Tehran, Iran
| | - Hassan Asadi
- Deputy of Research, Technology and Education, Research Section, Pasteur Institute of Iran, Tehran, Iran
| | - Gholnaz M Irani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran.,Iranian Comprehensive Hemophilia Care Center, Tehran, Iran
| | - Rezvan Zabihollahi
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Azam Bolhassani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
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105
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Wang X, Li G, Guo J, Zhang Z, Zhang S, Zhu Y, Cheng J, Yu L, Ji Y, Tao J. Kv1.3 Channel as a Key Therapeutic Target for Neuroinflammatory Diseases: State of the Art and Beyond. Front Neurosci 2020; 13:1393. [PMID: 31992966 PMCID: PMC6971160 DOI: 10.3389/fnins.2019.01393] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 12/10/2019] [Indexed: 12/26/2022] Open
Abstract
It remains a challenge for the effective treatment of neuroinflammatory disease, including multiple sclerosis (MS), stroke, epilepsy, and Alzheimer’s and Parkinson’s disease. The voltage-gated potassium Kv1.3 channel is of interest, which is considered as a novel therapeutic target for treating neuroinflammatory disorders due to its crucial role in subsets of T lymphocytes as well as microglial cells. Toxic animals, such as sea anemones, scorpions, spiders, snakes, and cone snails, can produce a variety of toxins that act on the Kv1.3 channel. The Stichodactyla helianthus K+ channel blocking toxin (ShK) from the sea anemone S. helianthus is proved as a classical blocker of Kv1.3. One of the synthetic analogs ShK-186, being developed as a therapeutic for autoimmune diseases, has successfully completed first-in-man Phase 1 trials. In addition to addressing the recent progress on the studies underlying the pharmacological characterizations of ShK on MS, the review will also explore the possibility for clinical treatment of ShK-like Kv1.3 blocking polypeptides on other neuroinflammatory diseases.
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Affiliation(s)
- Xiaoli Wang
- Department of Neurology and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,Institute of Biomembrane and Biopharmaceutics, Shanghai University, Shanghai, China
| | - Guoyi Li
- Department of Neurology and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jingkang Guo
- Institute of Biomembrane and Biopharmaceutics, Shanghai University, Shanghai, China
| | - Zhiping Zhang
- Institute of Biomembrane and Biopharmaceutics, Shanghai University, Shanghai, China
| | - Shuzhang Zhang
- Institute of Biomembrane and Biopharmaceutics, Shanghai University, Shanghai, China
| | - Yudan Zhu
- Department of Neurology and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiwei Cheng
- Department of Neurology and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lu Yu
- Department of Neurology and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yonghua Ji
- Institute of Biomembrane and Biopharmaceutics, Shanghai University, Shanghai, China,Xinhua Translational Institute for Cancer Pain, Shanghai, China
| | - Jie Tao
- Department of Neurology and Central Laboratory, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,Putuo Clinical Medical School, Anhui Medical University, Shanghai, China
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106
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Namazi F, Bolhassani A, Sadat SM, Irani S. Delivery of HIV-1 Polyepitope Constructs Using Cationic and Amphipathic Cell Penetrating Peptides into Mammalian Cells. Curr HIV Res 2020; 17:408-428. [DOI: 10.2174/1570162x17666191121114522] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/06/2019] [Accepted: 11/13/2019] [Indexed: 12/14/2022]
Abstract
Background:
An effective vaccine against human immunodeficiency virus 1 (HIV-1) is
an important global health priority. Despite many efforts in the development of the HIV-1 vaccine,
no effective vaccine has been approved yet. Recently, polyepitope vaccines including several immunogenic
and conserved epitopes of HIV-1 proteins have received special attention.
Methods:
In this study, HIV-1 Nef, Tat, Gp160 and P24 proteins were considered for selection of
immunodominant and conserved epitopes due to their critical roles in the viral life cycle and pathogenesis.
At first, the Nef60-84-Nef126-144-Tat29-49-Gp16030-53-Gp160308-323-P248-151 DNA construct was
designed using in silico studies. Then, the DNA construct was subcloned in pEGFP-N1 and pET-
24a (+) expression vectors and the rNef-Tat-Gp160-P24 polyepitope peptide was generated in E.coli
expression system for in vitro delivery using novel cell-penetrating peptides (CPPs), LDP-NLS and
CyLoP-1, in a non-covalent manner. Also, the HR9 and MPG CPPs were used to transfer the DNA
construct.
Results:
Our results showed that the recombinant polyepitope peptide generated in Rosetta strain
migrated as a clear band of ~31 kDa in SDS-PAGE. The SEM data confirmed the formation of stable
nanoparticles with a size below 250 nm. MTT assay revealed that the complexes did not represent
any considerable cytotoxic effect compared to untreated cells. The results of fluorescence microscopy,
flow cytometry and western blotting indicated that these CPPs successfully delivered polyepitope
constructs into HEK-293T cell line.
Conclusion:
These data suggested that these CPPs can be used as a promising approach for the development
of the HIV-1 vaccine.
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Affiliation(s)
- Fatemeh Namazi
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Azam Bolhassani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Seyed Mehdi Sadat
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Shiva Irani
- Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
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107
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Helms HCC, Kristensen M, Saaby L, Fricker G, Brodin B. Drug Delivery Strategies to Overcome the Blood-Brain Barrier (BBB). Handb Exp Pharmacol 2020; 273:151-183. [PMID: 33367937 DOI: 10.1007/164_2020_403] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The brain capillary endothelium serves both as an exchange site for gases and solutes between blood and brain and as a protective fence against neurotoxic compounds from the blood. While this "blood-brain barrier" (BBB) function protects the fragile environment in the brain, it also poses a tremendous challenge for the delivery of drug compounds to the brain parenchyma. Paracellular brain uptake of drug compounds is limited by the physical tightness of the endothelium, which is tightly sealed with junction complexes. Transcellular uptake of lipophilic drug compounds is limited by the activity of active efflux pumps in the luminal membrane. As a result, the majority of registered CNS drug compounds are small lipophilic compounds which are not efflux transporter substrates. Small molecule CNS drug development therefore focuses on identifying compounds with CNS target affinity and modifies these in order to optimize lipophilicity and decrease efflux pump interactions. Since efflux pump activity is limiting drug uptake, it has been investigated whether coadministration of drug compounds with efflux pump inhibitors could increase drug uptake. While the concept works to some extent, a lot of challenges have been encountered in terms of obtaining efficient inhibition while avoiding adverse effects.Some CNS drug compounds enter the brain via nutrient transport proteins, an example is the levodopa, a prodrug of Dopamine, which crosses the BBB via the large neutral amino acid transporter LAT1. While carrier-mediated transport of drug compounds may seem attractive, the development of drugs targeting transporters is very challenging, since the compounds should have a good fit to the binding site, while still maintaining their CNS target affinity.Receptor-mediated transport of drug compounds, especially biotherapeutics, conjugated to a receptor-binding ligand has shown some promise, although the amounts transported are rather low. This also holds true for drug-conjugation to cell-penetrating peptides. Due to the low uptake of biotherapeutics, barrier-breaching approaches such as mannitol injections and focused ultrasound have been employed with some success to patient groups with no other treatment options.
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Affiliation(s)
| | - Mie Kristensen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lasse Saaby
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Bioneer-Farma, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Gert Fricker
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University, Heidelberg, Germany
| | - Birger Brodin
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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108
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Ur Rahman A, Khan S, Khan M. Transport of trans-activator of transcription (TAT) peptide in tumour tissue model: evaluation of factors affecting the transport of TAT evidenced by flow cytometry. ACTA ACUST UNITED AC 2019; 72:519-530. [PMID: 31868235 DOI: 10.1111/jphp.13221] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 11/29/2019] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Trans-activator of transcription (TAT), a cell penetrating peptide, has been explored to overcome resistance to penetration and transport inside the cell, therefore, suggested to be used as drug delivery vector into drug-resistant tumours. The generosity of this study was to evaluate modifiable factors (concentration, temperature, incubation time and spheroid age) on the penetration of TAT. METHODS Multicellular tumour spheroids (MCTS) used as tumour tissue models to mimic some characteristics with in-vivo tumors. Cell monolayer and 3-, 5-, 7-day-old MCTS were incubated with TAT and effects of modifiable factors were determined quantitatively through flow cytometry, based on TAT-positive cell count (%) and mean fluorescence intensity. KEY FINDINGS Enhancing TAT concentration (1, 5 and 25 µm), transport significantly increased (ANOVA, P < 0.0001) in cell monolayer and spheroids. However, rising temperature from 7 to 37°C (t, P > 0.05) and increasing incubation time; 20 min, 1 h and 3 h; (ANOVA, P > 0.05) were statistically non-significant. Moreover, TAT penetration declines as spheroids get older (ANOVA, P < 0.01). CONCLUSION While exploiting MCTS as tumour tissue model, older spheroids could be preferred to target penetration-resistant cells and mimic the in-vivo microenvironment.
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Affiliation(s)
- Aziz Ur Rahman
- Manchester Pharmacy School, The University of Manchester, Manchester, UK.,Department of Pharmacy, University of Malakand, Chakdara, Pakistan
| | - Shahzeb Khan
- Department of Pharmacy, University of Malakand, Chakdara, Pakistan
| | - Munasib Khan
- Department of Pharmacy, University of Malakand, Chakdara, Pakistan
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109
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Toyohara D, Yokoi Y, Inoue G, Muraoka T, Mori T. Abiotic Factors Promote Cell Penetrating Peptide Permeability in Enterobacteriaceae Models. Front Microbiol 2019; 10:2534. [PMID: 31849846 PMCID: PMC6902036 DOI: 10.3389/fmicb.2019.02534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 10/21/2019] [Indexed: 11/13/2022] Open
Abstract
Conventionally, the delivery of biomolecules into bacteria for the generation of characterized or functional mutants has relied greatly on horizontal gene transfer techniques. However, the low compatibility of these techniques with novel or hard-to-transform bacteria currently serves as a challenge to the bioengineering field. Here, we explored the use of cell penetrating peptides (CPPs) as an alternative biomolecule delivery approach by investigating the effects of the abiotic factors during CPP permeation. Using the (KFF)3K-FAM conjugate and Escherichia coli as models, we evaluated four abiotic factors where two of these factors, temperature and solution tonicity, promoted (KFF)3K-FAM permeation efficiency. Our data show that optimal (KFF)3K-FAM permeation efficiency was achieved for E. coli at approximately 98.1% under conditions of 37°C (growth optimal temperature) and 50% PBS concentration. Based on these conditions, we subsequently tested the applicability of CPP permeation in various bacterial strains by treating 10 bacterial strains from the Enterobacteriaceae family among which seven strains have no CPP permeation records with (KFF)3K-FAM. Interestingly, when compared with non-optimized conditions, all 10 strains showed a marked increase in CPP permeation ranging between 20 and 90% efficiency. Although using strains within Enterobacteriaceae that are phylogenetically close, our results hinted on the possibility that with proper optimization of the abiotic factors, CPPs could be compatible with a broad range of bacterial strains. Our efforts suggest that CPP could serve as an effective alternative approach for mutant generation and for biomolecule delivery into novel or hard-to-transform bacteria.
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Affiliation(s)
- Daichi Toyohara
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Koganei, Japan
| | - Yasuhito Yokoi
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Koganei, Japan
| | - Go Inoue
- Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, Koganei, Japan
| | - Takahiro Muraoka
- Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, Koganei, Japan
| | - Tetsushi Mori
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Koganei, Japan
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110
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Lopez-Barbosa N, Suárez-Arnedo A, Cifuentes J, Gonzalez Barrios AF, Silvera Batista CA, Osma JF, Muñoz-Camargo C, Cruz JC. Magnetite-OmpA Nanobioconjugates as Cell-Penetrating Vehicles with Endosomal Escape Abilities. ACS Biomater Sci Eng 2019; 6:415-424. [PMID: 33463215 DOI: 10.1021/acsbiomaterials.9b01214] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Outer membrane protein A (OmpA) has been extensively studied in Gram-negative bacteria due to its relevance in the adhesion of pathogens to host cells and its surfactant capabilities. It consists of a hydrophobic β-barrel domain and a hydrophilic periplasmic domain, that confers OmpA an amphiphilic structure. This study aims to elucidate the capacity of Escherichia coli OmpA to translocate liposomal membranes and serve as a potential cell-penetrating vehicle. We immobilized OmpA on magnetite nanoparticles and investigated the possible functional changes exhibited by OmpA after immobilization. Liposomal intake was addressed using egg lecithin liposomes as a model, where magnetite-OmpA nanobioconjugates were able to translocate the liposomal membrane and caused a disruptive effect when subjected to a magnetic field. Nanobioconjugates showed both low cytotoxicity and hemolytic tendency. Additional interactions within the intracellular space led to altered viability results via 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT). Confocal microscopy images revealed that immobilized nanoparticles effectively enter the cytoplasm of THP-1 and Vero cells by different routes, and, subsequently, some escape endosomes, lysosomes, and other intracellular compartments with relatively high efficiencies. This was demonstrated by co-localization analyses with LysoTracker green that showed Pearson correlations of about 80 and 28%.
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Affiliation(s)
| | | | | | | | - Carlos A Silvera Batista
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
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111
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Behzadipour Y, Hemmati S. Considerations on the Rational Design of Covalently Conjugated Cell-Penetrating Peptides (CPPs) for Intracellular Delivery of Proteins: A Guide to CPP Selection Using Glucarpidase as the Model Cargo Molecule. Molecules 2019; 24:E4318. [PMID: 31779220 PMCID: PMC6930620 DOI: 10.3390/molecules24234318] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/15/2019] [Accepted: 11/16/2019] [Indexed: 12/26/2022] Open
Abstract
Access of proteins to their intracellular targets is limited by a hydrophobic barrier called the cellular membrane. Conjugation with cell-penetrating peptides (CPPs) has been shown to improve protein transduction into the cells. This conjugation can be either covalent or non-covalent, each with its unique pros and cons. The CPP-protein covalent conjugation may result in undesirable structural and functional alterations in the target protein. Therefore, we propose a systematic approach to evaluate different CPPs for covalent conjugations. This guide is presented using the carboxypeptidase G2 (CPG2) enzyme as the target protein. Seventy CPPs -out of 1155- with the highest probability of uptake efficiency were selected. These peptides were then conjugated to the N- or C-terminus of CPG2. Translational efficacy of the conjugates, robustness and thermodynamic properties of the chimera, aggregation possibility, folding rate, backbone flexibility, and aspects of in vivo administration such as protease susceptibility were predicted. The effect of the position of conjugation was evaluated using unpaired t-test (p < 0.05). It was concluded that N-terminal conjugation resulted in higher quality constructs. Seventeen CPP-CPG2/CPG2-CPP constructs were identified as the most promising. Based on this study, the bioinformatics workflow that is presented may be universally applied to any CPP-protein conjugate design.
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Affiliation(s)
- Yasaman Behzadipour
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71345-1583, Iran;
| | - Shiva Hemmati
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71345-1583, Iran;
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz 71345-1583, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz 71345-1583, Iran
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112
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Song Y, Shi Y, Zhang L, Hu H, Zhang C, Yin M, Zhang X, Sun K. Oral delivery system for low molecular weight protamine-dextran-poly(lactic-co-glycolic acid) carrying exenatide to overcome the mucus barrier and improve intestinal targeting efficiency. Nanomedicine (Lond) 2019; 14:989-1009. [PMID: 31088322 DOI: 10.2217/nnm-2018-0322] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: This study aimed to explore the effect of nanoparticles loaded with exenatide in overcoming the mucus barrier and improving intestinal targeting efficiency, to improve the oral bioavailability. Materials & methods: Low molecular weight protamine (LMWP)-dextran-poly(lactic-co-glycolic acid) was used to create LMWP-dextran-poly(lactic-co-glycolic acid)-nanoparticles (LDPs) encapsulating exenatide-Zn2+ complex.Results & conclusion: LDPs showed improved penetration of the mucus barrier, and LMWP was helpful for mediating cell translocation through protein transduction domains. The absorption sites and distribution rates of LDPs were verified by intestinal localization experiments and in vivo distribution experiments. Cell uptake and transmembrane experiments confirmed the absorption efficiency in the intestinal epithelium. Furthermore, the relative bioavailability after oral administration of exenatide-Zn2+-LDPs was 8.4%, with a significant hypoglycemic effect on Type 2 diabetic mice.
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Affiliation(s)
- Yina Song
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Yanan Shi
- School of Pharmacy, Binzhou Medical University, Yantai, 264005, PR China
| | - Liping Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Haiyan Hu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Chunyan Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Miaomiao Yin
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China
| | - Xuemei Zhang
- State Key Laboratory of Long-Acting & Targeting Drug Delivery System, Luye Pharmaceutical Co. Ltd, Yantai, 264005, PR China
| | - Kaoxiang Sun
- School of Pharmacy, Key Laboratory of Molecular Pharmacology & Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System & Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, PR China.,State Key Laboratory of Long-Acting & Targeting Drug Delivery System, Luye Pharmaceutical Co. Ltd, Yantai, 264005, PR China
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Engineered amphiphilic peptides enable delivery of proteins and CRISPR-associated nucleases to airway epithelia. Nat Commun 2019; 10:4906. [PMID: 31659165 PMCID: PMC6817825 DOI: 10.1038/s41467-019-12922-y] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 09/30/2019] [Indexed: 12/20/2022] Open
Abstract
The delivery of biologic cargoes to airway epithelial cells is challenging due to the formidable barriers imposed by its specialized and differentiated cells. Among cargoes, recombinant proteins offer therapeutic promise but the lack of effective delivery methods limits their development. Here, we achieve protein and SpCas9 or AsCas12a ribonucleoprotein (RNP) delivery to cultured human well-differentiated airway epithelial cells and mouse lungs with engineered amphiphilic peptides. These shuttle peptides, non-covalently combined with GFP protein or CRISPR-associated nuclease (Cas) RNP, allow rapid entry into cultured human ciliated and non-ciliated epithelial cells and mouse airway epithelia. Instillation of shuttle peptides combined with SpCas9 or AsCas12a RNP achieves editing of loxP sites in airway epithelia of ROSAmT/mG mice. We observe no evidence of short-term toxicity with a widespread distribution restricted to the respiratory tract. This peptide-based technology advances potential therapeutic avenues for protein and Cas RNP delivery to refractory airway epithelial cells. Delivering biological cargo to airway epithelial cells is very challenging. Here, the authors use engineered amphiphilic peptides to shuttle proteins and CRISPR RNPs into airway cells in vivo.
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Perez J, Cifuentes J, Cuellar M, Suarez-Arnedo A, Cruz JC, Muñoz-Camargo C. Cell-Penetrating And Antibacterial BUF-II Nanobioconjugates: Enhanced Potency Via Immobilization On Polyetheramine-Modified Magnetite Nanoparticles. Int J Nanomedicine 2019; 14:8483-8497. [PMID: 31695376 PMCID: PMC6817350 DOI: 10.2147/ijn.s224286] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 09/18/2019] [Indexed: 12/18/2022] Open
Abstract
Introduction Controlled delivery of therapeutic molecules in a localized manner has become an area of interest due to its potential to reduce drug exposure to healthy tissues and consequently to minimize undesirable side effects. We have recently introduced novel cell-penetrating vehicles by immobilizing the antimicrobial peptide Buforin II (BUF-II) on magnetite nanoparticles (MPNPs). Despite the potent translocating abilities of such nanobioconjugates, they failed to preserve the antimicrobial activity of native BUF-II. In this work, we explored immobilization on MNPs with the aid of polymer surface spacers, which has been considered as an attractive alternative for the highly efficient conjugation of various biomolecules. Methods Here, we immobilized BUF-II on polyetheramine-modified magnetite nanoparticles to preserve its structural integrity. As a result, for the obtained nanobioconjugates the lost antimicrobial activity against gram-positive and gram-negative bacteria was only 50% with respect to the native BUF-II. The nanobioconjugates were also characterized via FTIR, DLS, TEM, and TGA. Delivery on THP-1, HaCaT, HFF, and Escherichia coli cells was conducted to confirm capability for cell membrane translocation. Results Colocalization with Lysotracker showed an endosomal escape efficiency of about 73∓12% in THP-1 cells. Avoidance of endocytic pathways of internalization was qualitatively confirmed by a delivery assay at low temperature. Nuclear penetration of the nanobioconjugates was corroborated via confocal microscopy and showed high biocompatibility as demonstrated by hemolysis levels below 5% and acute cytotoxicity of around 15%. Conclusion The obtained nanobioconjugates were capable of translocating the cell membrane and nuclei of different normal and cancerous cell lines without significantly decreasing viability. This makes the vehicle addressable for a number of applications ranging from antimicrobial topical treatments to the delivery of nucleotides and therapeutic molecules with difficulties to bypass cell membranes.
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Affiliation(s)
- Jessica Perez
- GINIB Research Group, Department of Biomedical Engineering, Universidad de los Andes, Bogotá, Colombia
| | - Javier Cifuentes
- GINIB Research Group, Department of Biomedical Engineering, Universidad de los Andes, Bogotá, Colombia
| | - Monica Cuellar
- GINIB Research Group, Department of Biomedical Engineering, Universidad de los Andes, Bogotá, Colombia
| | - Alejandra Suarez-Arnedo
- GINIB Research Group, Department of Biomedical Engineering, Universidad de los Andes, Bogotá, Colombia
| | - Juan C Cruz
- GINIB Research Group, Department of Biomedical Engineering, Universidad de los Andes, Bogotá, Colombia
| | - Carolina Muñoz-Camargo
- GINIB Research Group, Department of Biomedical Engineering, Universidad de los Andes, Bogotá, Colombia
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Kardani K, Milani A, H Shabani S, Bolhassani A. Cell penetrating peptides: the potent multi-cargo intracellular carriers. Expert Opin Drug Deliv 2019; 16:1227-1258. [PMID: 31583914 DOI: 10.1080/17425247.2019.1676720] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Introduction: Cell penetrating peptides (CPPs) known as protein translocation domains (PTD), membrane translocating sequences (MTS), or Trojan peptides (TP) are able to cross biological membranes without clear toxicity using different mechanisms, and facilitate the intracellular delivery of a variety of bioactive cargos. CPPs could overcome some limitations of drug delivery and combat resistant strains against a broad range of diseases. Despite delivery of different therapeutic molecules by CPPs, they lack cell specificity and have a short duration of action. These limitations led to design of combined cargo delivery systems and subsequently improvement of their clinical applications. Areas covered: This review covers all our studies and other researchers in different aspects of CPPs such as classification, uptake mechanisms, and biomedical applications. Expert opinion: Due to low cytotoxicity of CPPs as compared to other carriers and final degradation to amino acids, they are suitable for preclinical and clinical studies. Generally, the efficiency of CPPs was suitable to penetrate the cell membrane and deliver different cargos to specific intracellular sites. However, no CPP-based therapeutic approach has approved by FDA, yet; because there are some disadvantages for CPPs including short half-life in blood, and nonspecific CPP-mediated delivery to normal tissue. Thus, some methods were used to develop the functions of CPPs in vitro and in vivo including the augmentation of cell specificity by activatable CPPs, specific transport into cell organelles by insertion of corresponding localization sequences, incorporation of CPPs into multifunctional dendrimeric or liposomal nanocarriers to improve selectivity and efficiency especially in tumor cells.
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Affiliation(s)
- Kimia Kardani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran , Tehran , Iran
| | - Alireza Milani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran , Tehran , Iran
| | - Samaneh H Shabani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran , Tehran , Iran
| | - Azam Bolhassani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran , Tehran , Iran
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Cao C, Sheng D, Li X, Xue F, Liu L, Zhong Y, Wei P, Li R, Yi T. Furin substrate as a novel cell-penetrating peptide: combining a delivery vector and an inducer of cargo release. Chem Commun (Camb) 2019; 55:11872-11875. [PMID: 31528875 DOI: 10.1039/c9cc02353d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have developed a new cell-penetrating peptide (CPP) using a repeated protease (furin) substrate. This CPP can not only deliver cargo into cells but can also be cleaved by furin in cells and release the cargo. Cell-impermeable antitumor pro-apoptotic peptide KLAKLAKKLAKLAK (KLA) and chemotherapy drug chlorambucil were chosen to be delivered by the CPP into live cancer cells and their cytotoxicity was greatly enhanced for in vivo cancer treatment.
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Affiliation(s)
- Chunyan Cao
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| | - Danli Sheng
- Department of Ultrasound, Fudan University, Shanghai Cancer Center, Shanghai 200032, China
| | - Xiang Li
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| | - Fengfeng Xue
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| | - Lingyan Liu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| | - Yaping Zhong
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| | - Peng Wei
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| | - Ruohan Li
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
| | - Tao Yi
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China.
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The Utilization of Cell-Penetrating Peptides in the Intracellular Delivery of Viral Nanoparticles. MATERIALS 2019; 12:ma12172671. [PMID: 31443361 PMCID: PMC6747576 DOI: 10.3390/ma12172671] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/16/2019] [Accepted: 08/21/2019] [Indexed: 01/04/2023]
Abstract
Viral particles (VPs) have evolved so as to efficiently enter target cells and to deliver their genetic material. The current state of knowledge allows us to use VPs in the field of biomedicine as nanoparticles that are safe, easy to manipulate, inherently biocompatible, biodegradable, and capable of transporting various cargoes into specific cells. Despite the fact that these virus-based nanoparticles constitute the most common vectors used in clinical practice, the need remains for further improvement in this area. The aim of this review is to discuss the potential for enhancing the efficiency and versatility of VPs via their functionalization with cell-penetrating peptides (CPPs), short peptides that are able to translocate across cellular membranes and to transport various substances with them. The review provides and describes various examples of and means of exploitation of CPPs in order to enhance the delivery of VPs into permissive cells and/or to allow them to enter a broad range of cell types. Moreover, it is possible that CPPs are capable of changing the immunogenic properties of VPs, which could lead to an improvement in their clinical application. The review also discusses strategies aimed at the modification of VPs by CPPs so as to create a useful cargo delivery tool.
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118
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Si X, Song W, Yang S, Ma L, Yang C, Tang Z. Glucose and pH Dual‐Responsive Nanogels for Efficient Protein Delivery. Macromol Biosci 2019; 19:e1900148. [DOI: 10.1002/mabi.201900148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 06/30/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Xinghui Si
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
- University of Science and Technology of China Hefei 230026 P. R. China
| | - Wantong Song
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
- Jilin Biomedical Polymers Engineering Laboratory Changchun 130022 P. R. China
| | - Shengcai Yang
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
- College of ChemistryJilin University Changchun 130012 P. R. China
| | - Lili Ma
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
- Jilin Biomedical Polymers Engineering Laboratory Changchun 130022 P. R. China
| | - Chenguang Yang
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
- Jilin Biomedical Polymers Engineering Laboratory Changchun 130022 P. R. China
| | - Zhaohui Tang
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
- Jilin Biomedical Polymers Engineering Laboratory Changchun 130022 P. R. China
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119
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Rostami B, Irani S, Bolhassani A, Cohan RA. M918: A Novel Cell Penetrating Peptide for Effective Delivery of HIV-1 Nef and Hsp20-Nef Proteins into Eukaryotic Cell Lines. Curr HIV Res 2019; 16:280-287. [PMID: 30520377 PMCID: PMC6416460 DOI: 10.2174/1570162x17666181206111859] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/30/2018] [Accepted: 12/02/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND HIV-1 Nef protein is a possible attractive target in the development of therapeutic HIV vaccines including protein-based vaccines. The most important disadvantage of protein-based vaccines is their low immunogenicity which can be improved by heat shock proteins (Hsps) as an immunomodulator, and cell-penetrating peptides (CPPs) as a carrier. METHODS In this study, the HIV-1 Nef and Hsp20-Nef proteins were generated in E.coli expression system for delivery into the HEK-293T mammalian cell line using a novel cell-penetrating peptide, M918, in a non-covalent fashion. The size, zeta potential and morphology of the peptide/protein complexes were studied by scanning electron microscopy (SEM) and Zeta sizer. The efficiency of Nef and Hsp20-Nef transfection using M918 was evaluated by western blotting in HEK-293T cell line. RESULTS The SEM data confirmed the formation of discrete nanoparticles with a diameter of approximately 200-250 nm and 50-80 nm for M918/Nef and M918/Hsp20-Nef, respectively. The dominant band of ~ 27 kDa and ~ 47 kDa was detected in the transfected cells with the Nef/ M918 and Hsp20-Nef/ M918 nanoparticles at a molar ratio of 1:20 using anti-HIV-1 Nef monoclonal antibody. These bands were not detected in the un-transfected and transfected cells with Nef or Hsp20- Nef protein alone indicating that M918 could increase the penetration of Nef and Hsp20-Nef proteins into the cells. CONCLUSION These data suggest that M918 CPP can be used to enter HIV-1 Nef and Hsp20-Nef proteins inside mammalian cells efficiently as a promising approach in HIV-1 vaccine development.
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Affiliation(s)
- Bahareh Rostami
- Department of Biology, School of Basic Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shiva Irani
- Department of Biology, School of Basic Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Azam Bolhassani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Reza Ahangari Cohan
- Pilot Nano-Biotechnology Department, Pasteur Institute of Iran, Tehran, Iran
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Safa N, Anderson JC, Vaithiyanathan M, Pettigrew JH, Pappas GA, Liu D, Gauthier TJ, Melvin AT. CPProtectides: Rapid uptake of well-folded β-hairpin peptides with enhanced resistance to intracellular degradation. Pept Sci (Hoboken) 2019; 111. [PMID: 31276085 DOI: 10.1002/pep2.24092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Cell penetrating peptides (CPPs) have emerged as powerful tools for delivering bioactive cargoes, such as biosensors or drugs to intact cells. One limitation of CPPs is their rapid degradation by intracellular proteases. β-hairpin "protectides" have previously been demonstrated to be long-lived under cytosolic conditions due to their secondary structure. The goal of this work was to demonstrate that arginine-rich β-hairpin peptides function as both protectides and as CPPs. Peptides exhibiting a β-hairpin motif were found to be rapidly internalized into cells with their uptake efficiency dependent on the number of arginine residues in the sequence. Cellular internalization of the β-hairpin peptides was compared to unstructured, scrambled sequences and to commercially available, arginine-rich CPPs. The unstructured peptides displayed greater uptake kinetics compared to the structured β-hairpin sequences; however, intracellular stability studies revealed that the β-hairpin peptides exhibited superior stability under cytosolic conditions with a 16-fold increase in peptide half-life. This study identifies a new class of long-lived CPPs that can overcome the stability limitations of peptide-based reporters or bioactive delivery mechanisms in intact cells.
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Affiliation(s)
- Nora Safa
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana
| | - Jeffery C Anderson
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana
| | | | - Jacob H Pettigrew
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana
| | - Gavin A Pappas
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana
| | - Dong Liu
- LSU AgCenter Biotechnology Lab, Louisiana State University, Baton Rouge, Louisiana
| | - Ted J Gauthier
- LSU AgCenter Biotechnology Lab, Louisiana State University, Baton Rouge, Louisiana
| | - Adam T Melvin
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana
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121
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Kalmouni M, Al-Hosani S, Magzoub M. Cancer targeting peptides. Cell Mol Life Sci 2019; 76:2171-2183. [PMID: 30877335 PMCID: PMC11105397 DOI: 10.1007/s00018-019-03061-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/08/2019] [Accepted: 03/07/2019] [Indexed: 12/19/2022]
Abstract
Despite continuing advances in the development of biomacromolecules for therapeutic purposes, successful application of these often large and hydrophilic molecules has been hindered by their inability to efficiently traverse the cellular plasma membrane. In recent years, cell-penetrating peptides (CPPs) have received considerable attention as a promising class of delivery vectors due to their ability to mediate the efficient import of a large number of cargoes in vitro and in vivo. However, the lack of target specificity of CPPs remains a major obstacle to their clinical development. To address this issue, researchers have developed strategies in which chemotherapeutic drugs are conjugated to cancer targeting peptides (CTPs) that exploit the unique characteristics of the tumor microenvironment or cancer cells, thereby improving cancer cell specificity. This review highlights several of these strategies that are currently in use, and discusses how multi-component nanoparticles conjugated to CTPs can be designed to provide a more efficient cancer therapeutic delivery strategy.
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Affiliation(s)
- Mona Kalmouni
- Biology Program, New York University Abu Dhabi, PO Box 129188, Saadiyat Island Campus, Abu Dhabi, United Arab Emirates
| | - Sumaya Al-Hosani
- Biology Program, New York University Abu Dhabi, PO Box 129188, Saadiyat Island Campus, Abu Dhabi, United Arab Emirates
| | - Mazin Magzoub
- Biology Program, New York University Abu Dhabi, PO Box 129188, Saadiyat Island Campus, Abu Dhabi, United Arab Emirates.
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Iegre J, Brear P, Baker DJ, Tan YS, Atkinson EL, Sore HF, O' Donovan DH, Verma CS, Hyvönen M, Spring DR. Efficient development of stable and highly functionalised peptides targeting the CK2α/CK2β protein-protein interaction. Chem Sci 2019; 10:5056-5063. [PMID: 31183056 PMCID: PMC6530537 DOI: 10.1039/c9sc00798a] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 04/11/2019] [Indexed: 12/15/2022] Open
Abstract
The discovery of new Protein-Protein Interaction (PPI) modulators is currently limited by the difficulties associated with the design and synthesis of selective small molecule inhibitors. Peptides are a potential solution for disrupting PPIs; however, they typically suffer from poor stability in vivo and limited tissue penetration hampering their wide spread use as new chemical biology tools and potential therapeutics. In this work, a combination of CuAAC chemistry, molecular modelling, X-ray crystallography, and biological validation allowed us to develop highly functionalised peptide PPI inhibitors of the protein CK2. The lead peptide, CAM7117, prevents the formation of the holoenzyme assembly in vitro, slows down proliferation, induces apoptosis in cancer cells and is stable in human serum. CAM7117 could aid the development of novel CK2 inhibitors acting at the interface and help to fully understand the intracellular pathways involving CK2. Importantly, the approach adopted herein could be applied to many PPI targets and has the potential to ease the study of PPIs by efficiently providing access to functionalised peptides.
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Affiliation(s)
- Jessica Iegre
- Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW , Cambridge , UK .
| | - Paul Brear
- Department of Biochemistry , University of Cambridge , Tennis Court Road , CB2 1GA , Cambridge , UK .
| | - David J Baker
- Discovery Sciences , IMED Biotech Unit , AstraZeneca , Cambridge , UK
| | - Yaw Sing Tan
- Bioinformatics Institute , Agency for Science, Technology and Research (ASTAR) , 30 Biopolis Street, #07-01 Matrix , Singapore 138671
| | - Eleanor L Atkinson
- Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW , Cambridge , UK .
| | - Hannah F Sore
- Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW , Cambridge , UK .
| | | | - Chandra S Verma
- Bioinformatics Institute , Agency for Science, Technology and Research (ASTAR) , 30 Biopolis Street, #07-01 Matrix , Singapore 138671
- Department of Biological Sciences , National University of Singapore , 14 Science Drive 4 , Singapore 117543
- School of Biological Sciences , Nanyang Technological University , 60 Nanyang Drive , Singapore 637551
| | - Marko Hyvönen
- Department of Biochemistry , University of Cambridge , Tennis Court Road , CB2 1GA , Cambridge , UK .
| | - David R Spring
- Department of Chemistry , University of Cambridge , Lensfield Road , CB2 1EW , Cambridge , UK .
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Alavi SE, Cabot PJ, Moyle PM. Glucagon-Like Peptide-1 Receptor Agonists and Strategies To Improve Their Efficiency. Mol Pharm 2019; 16:2278-2295. [PMID: 31050435 DOI: 10.1021/acs.molpharmaceut.9b00308] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is increasing in global prevalence and is associated with serious health problems (e.g., cardiovascular disease). Various treatment options are available for T2DM, including the incretin hormone glucagon-like peptide-1 (GLP-1). GLP-1 is a therapeutic peptide secreted from the intestines following food intake, which stimulates the secretion of insulin from the pancreas. The native GLP-1 has a very short plasma half-life, owning to renal clearance and degradation by the enzyme dipeptidyl peptidase-4. To overcome this issue, various GLP-1 agonists with increased resistance to proteolytic degradation and reduced renal clearance have been developed, with several currently marketed. Strategies, such as controlled release delivery systems, methods to reduce renal clearance (e.g., PEGylation and conjugation to antibodies), and methods to improve proteolytic stability (e.g., stapling, cyclization, and glycosylation) provide means to further improve the ability of GLP-1 analogs. These will be discussed in this literature review.
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Affiliation(s)
- Seyed Ebrahim Alavi
- School of Pharmacy , The University of Queensland , Woolloongabba , 4102 , Australia
| | - Peter J Cabot
- School of Pharmacy , The University of Queensland , Woolloongabba , 4102 , Australia
| | - Peter M Moyle
- School of Pharmacy , The University of Queensland , Woolloongabba , 4102 , Australia
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MacNevin CJ, Watanabe T, Weitzman M, Gulyani A, Fuehrer S, Pinkin NK, Tian X, Liu F, Jin J, Hahn KM. Membrane-Permeant, Environment-Sensitive Dyes Generate Biosensors within Living Cells. J Am Chem Soc 2019; 141:7275-7282. [PMID: 30994345 DOI: 10.1021/jacs.8b09841] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Dyes with environment-sensitive fluorescence have proven useful to study the spatiotemporal dynamics of protein activity in living cells. When attached to proteins, their fluorescence can reflect protein conformational changes, post-translational modifications, or protein interactions. However, the utility of such dye-protein conjugates has been limited because it is difficult to load them into cells. They usually must be introduced using techniques that perturb cell physiology, limit throughput, or generate fluorescent vesicles (e.g., electroporation, microinjection, or membrane transduction peptides). Here we circumvent these problems by modifying a proven, environment-sensitive biosensor fluorophore so that it can pass through cell membranes without staining intracellular compartments and can be attached to proteins within living cells using unnatural amino acid (UAA) mutagenesis. Reactive groups were incorporated for attachment to UAAs or small molecules (mero166, azide; mero167, alkyne; mero76, carboxylic acid). These dyes are bright and fluoresce at long wavelengths (reaching ε = 100 000 M-1 cm-1, ϕ = 0.24, with excitation 565 nm and emission 594 nm). The utility of mero166 was demonstrated by in-cell labeling of a UAA to generate a biosensor for the small GTPase Cdc42. In addition, conjugation of mero166 to a small molecule produced a membrane-permeable probe that reported the localization of the DNA methyltransferase G9a in cells. This approach provides a strategy to access biosensors for many targets and to more practically harness the varied environmental sensitivities of synthetic dyes.
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Affiliation(s)
- Christopher J MacNevin
- Department of Pharmacology, School of Medicine , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Takashi Watanabe
- Department of Pharmacology, School of Medicine , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Matthew Weitzman
- Department of Pharmacology, School of Medicine , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Akash Gulyani
- Department of Pharmacology, School of Medicine , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Sheryl Fuehrer
- Department of Pharmacology, School of Medicine , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Nicholas K Pinkin
- Department of Pharmacology, School of Medicine , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Xu Tian
- Department of Pharmacology, School of Medicine , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Feng Liu
- Center for Integrative Chemical Biology and Drug Discovery, School of Pharmacy , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Jian Jin
- Center for Integrative Chemical Biology and Drug Discovery, School of Pharmacy , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
| | - Klaus M Hahn
- Department of Pharmacology, School of Medicine , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599 , United States
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Rahimi MN, Foster HG, Farazi SN, Chapman R, McAlpine SR. Polymer mediated transport of the Hsp90 inhibitor LB76, a polar cyclic peptide, produces an Hsp90 cellular phenotype. Chem Commun (Camb) 2019; 55:4515-4518. [PMID: 30920570 DOI: 10.1039/c9cc00890j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
LB76 is a cyclic peptide that shows great promise as a selective heat shock protein 90 (Hsp90) inhibitor. However despite strong binding to and inhibition of Hsp90 in cell lysate its polar structure prevents it from crossing the cell membrane. We have developed a pH responsive polymer nanoparticle that effectively encapsulates LB76 from solution without need for purification. The nanoparticle releases the molecule upon crossing the cell membrane. Treatment of human colon cancer HCT116 cells with nanoparticles laden with LB76 produces the typical phenotype associated with Hsp90 inhibition, providing evidence of a therapeutically active payload.
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Affiliation(s)
- Marwa N Rahimi
- School of Chemistry, University of New South Wales, Gate 2 High street, Dalton 219, Sydney, Australia.
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126
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Tang J, Ning J, Liu X, Wu B, Hu R. A Novel Amino Acid Sequence-based Computational Approach to Predicting Cell-penetrating Peptides. Curr Comput Aided Drug Des 2019; 15:206-211. [PMID: 30251610 DOI: 10.2174/1573409914666180925100355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/04/2018] [Accepted: 09/05/2018] [Indexed: 11/22/2022]
Abstract
<P>Introduction: Machine Learning is a useful tool for the prediction of cell-penetration compounds
as drug candidates.
</P><P>
Materials and Methods: In this study, we developed a novel method for predicting Cell-Penetrating
Peptides (CPPs) membrane penetrating capability. For this, we used orthogonal encoding to encode
amino acid and each amino acid position as one variable. Then a software of IBM spss modeler and a
dataset including 533 CPPs, were used for model screening.
</P><P>
Results: The results indicated that the machine learning model of Support Vector Machine (SVM) was
suitable for predicting membrane penetrating capability. For improvement, the three CPPs with the
most longer lengths were used to predict CPPs. The penetration capability can be predicted with an accuracy
of close to 95%.
</P><P>
Conclusion: All the results indicated that by using amino acid position as a variable can be a perspective
method for predicting CPPs membrane penetrating capability.</P>
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Affiliation(s)
- Jihui Tang
- School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, China
| | - Jie Ning
- Department of Oncology, The First Affiliated Hospital, Anhui Medical University, Hefei 230022, China
| | - Xiaoyan Liu
- School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, China
| | - Baoming Wu
- School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei 230032, China
| | - Rongfeng Hu
- Key Laboratory of Xin’an Medicine, Ministry of Education, Anhui Province Key Laboratory of R&D of Chinese Medicine, Anhui University of Chinese Medicine, Anhui , China
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Yin J, Liu D, Bao L, Wang Q, Chen Y, Hou S, Yue Y, Yao W, Gao X. Tumor targeting and microenvironment-responsive multifunctional fusion protein for pro-apoptotic peptide delivery. Cancer Lett 2019; 452:38-50. [PMID: 30904618 DOI: 10.1016/j.canlet.2019.03.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 03/06/2019] [Accepted: 03/08/2019] [Indexed: 12/18/2022]
Abstract
The great therapeutic potential of peptides has not yet been achieved, mainly due to their remarkably short in vivo half-life. Although conjugation to macromolecules has been an effective way of improving protein in vivo half-life, the steric hindrance of macromolecules usually reduces the in vivo efficacy of peptides. Here we report a complex delivery system made from PsTag polypeptide, polyglutamic acid chain, matrix metalloproteinase 2 (MMP2)-degradable domain and cationic cell penetrating peptide for anticancer peptide delivery. Clear evidence was shown in vitro and in vivo to demonstrate that this multifunctional protein fusing a pro-apoptotic KLAKLAKKLAKLAK (KLA), named PAK, can increase circulation time in blood, enhance accumulation at tumor sites, eliminate the PsTag domain and the polyanionic sequence when triggered by tumor overexpressing MMP2, and then expose the cell penetrating peptide to realize the potent cellular uptake of KLA. Treatment of tumor-bearing mice with PAK could markedly induce tumor cells apoptosis and inhibit tumor growth, with no significant adverse effects. These results suggest our fusion protein can be a potential delivery system for peptide delivery in cancer treatments.
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Affiliation(s)
- Jun Yin
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Dingkang Liu
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Lichen Bao
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Qun Wang
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Ye Chen
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Shan Hou
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Yali Yue
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China
| | - Wenbing Yao
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China.
| | - Xiangdong Gao
- Jiangsu Key Laboratory of Druggability of Biopharmaceuticals and State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, China.
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128
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Ruczyński J, Rusiecka I, Turecka K, Kozłowska A, Alenowicz M, Gągało I, Kawiak A, Rekowski P, Waleron K, Kocić I. Transportan 10 improves the pharmacokinetics and pharmacodynamics of vancomycin. Sci Rep 2019; 9:3247. [PMID: 30824786 PMCID: PMC6397271 DOI: 10.1038/s41598-019-40103-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 02/11/2019] [Indexed: 12/23/2022] Open
Abstract
In the presented study, transportan 10 (TP10), an amphipathic cell penetrating peptide (CPP) with high translocation activity, was conjugated with vancomycin (Van), which is known for poor access to the intracellular bacteria and the brain. The antibacterial activity of the conjugates was tested on selected clinical strains of methicillin-resistant Staphylococcus aureus (MRSA) and Enterococcus sp. It turned out that all of them had superior antimicrobial activity in comparison to that of free Van, which became visible particularly against clinical MRSA strains. Furthermore, one of the conjugates was tested against MRSA - infected human cells. With respect to them, this compound showed high bactericidal activity. Next, the same conjugate was screened for its capacity to cross the blood brain barrier (BBB). Therefore, qualitative and quantitative analyses of the conjugate's presence in the mouse brain slices were carried out after its iv administration. They indicated the conjugate's presence in the brain in amount >200 times bigger than that of Van. The conjugates were safe with respect to erythrocyte toxicity (erythrocyte lysis assay). Van in the form of a conjugate with TP10 acquires superior pharmacodynamic and pharmacokinetic.
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Affiliation(s)
- Jarosław Ruczyński
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308, Gdansk, Poland
| | - Izabela Rusiecka
- Department of Pharmacology, Medical University of Gdansk, Debowa 23, 80-204, Gdansk, Poland.
| | - Katarzyna Turecka
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Medical University of Gdansk, Hallera 107, 80-416, Gdansk, Poland
| | - Agnieszka Kozłowska
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308, Gdansk, Poland
| | - Magdalena Alenowicz
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308, Gdansk, Poland
| | - Iwona Gągało
- Department of Pharmacology, Medical University of Gdansk, Debowa 23, 80-204, Gdansk, Poland
| | - Anna Kawiak
- Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Abrahama 58, 80-307, Gdansk, Poland
| | - Piotr Rekowski
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308, Gdansk, Poland
| | - Krzysztof Waleron
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Medical University of Gdansk, Hallera 107, 80-416, Gdansk, Poland
| | - Ivan Kocić
- Department of Pharmacology, Medical University of Gdansk, Debowa 23, 80-204, Gdansk, Poland
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Jones S, Osman S, Howl J. The planarian Schmidtea mediterranea as a model system for the discovery and characterization of cell-penetrating peptides and bioportides. Chem Biol Drug Des 2019; 93:1036-1049. [PMID: 30790457 DOI: 10.1111/cbdd.13483] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 12/13/2018] [Accepted: 12/27/2018] [Indexed: 12/16/2022]
Abstract
The general utility of the planarian Schmidtea mediterranea, an organism with remarkable regenerative capacity, was investigated as a convenient three-dimensional model to analyse the import of cell-penetrating peptides (CPPs) and bioportides (bioactive CPPs) into complex tissues. The unpigmented planarian blastema, 3 days post head amputation, is a robust platform to assess the penetration of red-fluorescent CPPs into epithelial cells and deeper tissues. Three planarian proteins, Ovo, ZicA and Djeya, which collectively control head remodelling and eye regeneration following decapitation, are a convenient source of novel cationic CPP vectors. One example, Djeya1 (RKLAFRYRRIKELYNSYR), is a particularly efficient and seemingly inert CPP vector that could be further developed to assist the delivery of bioactive payloads across the plasma membrane of eukaryotic cells. Eye regeneration, following head amputation, was utilized in an effort to identify bioportides capable of influencing stem cell-dependent morphogenesis. These investigations identified the tetradecapeptide mastoparan (INLKALAALAKKIL) as a bioportide able to influence the gross morphology of head development. We conclude that, compared with cellular monolayers, the S. mediterranea system provides many advantages and will support the identification of bioportides able to selectively modify the biology of totipotent neoblasts and, presumably, other mammalian stem cell types.
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Affiliation(s)
- Sarah Jones
- Molecular Pharmacology Group, Research Institute in Healthcare Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, UK
| | - Shaimaa Osman
- Peptide Chemistry Department, National Research Centre, Cairo, Egypt
| | - John Howl
- Molecular Pharmacology Group, Research Institute in Healthcare Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, UK
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130
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Rusiecka I, Ruczyński J, Kozłowska A, Backtrog E, Mucha P, Kocić I, Rekowski P. TP10-Dopamine Conjugate as a Potential Therapeutic Agent in the Treatment of Parkinson's Disease. Bioconjug Chem 2019; 30:760-774. [PMID: 30653302 DOI: 10.1021/acs.bioconjchem.8b00894] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Parkinson's disease (PD) is a common progressive neurodegenerative disorder for which the current treatment is not fully satisfactory. One of the major drawbacks of current PD therapy is poor penetration of drugs across the blood-brain barrier (BBB). In recent years, cell-penetrating peptides (CPPs) such as Tat, SynB, or TP10 have gained great interest due to their ability to penetrate cell membranes and to deliver different cargos to their targets including the central nervous system (CNS). However, there is no data with respect to the use of CPPs as drug carriers to the brain for the treatment of PD. In the presented research, the covalent TP10-dopamine conjugate was synthesized and its pharmacological properties were characterized in terms of its ability to penetrate the BBB and anti-parkinsonian activity. The results showed that dopamine (DA) in the form of a conjugate with TP10 evidently gained access to the brain tissue, exhibited low susceptibility to O-methylation reaction by catechol- O-methyltransferase (lower than that of DA), possessed a relatively high affinity to both dopamine D1 and D2 receptors (in the case of D1, a much higher than that of DA), and showed anti-parkinsonian activity (higher than that of l-DOPA) in the MPTP-induced preclinical animal model of PD. The presented results prove that the conjugation of TP10 with DA may be a good starting point for the development of a new strategy for the treatment of PD.
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Affiliation(s)
- Izabela Rusiecka
- Department of Pharmacology , Medical University of Gdańsk , Dębowa 23 , 80-204 Gdańsk , Poland
| | - Jarosław Ruczyński
- Faculty of Chemistry , University of Gdańsk , Wita Stwosza 63 , 80-308 Gdańsk , Poland
| | - Agnieszka Kozłowska
- Faculty of Chemistry , University of Gdańsk , Wita Stwosza 63 , 80-308 Gdańsk , Poland
| | - Ewelina Backtrog
- Faculty of Chemistry , University of Gdańsk , Wita Stwosza 63 , 80-308 Gdańsk , Poland
| | - Piotr Mucha
- Faculty of Chemistry , University of Gdańsk , Wita Stwosza 63 , 80-308 Gdańsk , Poland
| | - Ivan Kocić
- Department of Pharmacology , Medical University of Gdańsk , Dębowa 23 , 80-204 Gdańsk , Poland
| | - Piotr Rekowski
- Faculty of Chemistry , University of Gdańsk , Wita Stwosza 63 , 80-308 Gdańsk , Poland
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131
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George Z, Omosun Y, Azenabor AA, Goldstein J, Partin J, Joseph K, Ellerson D, He Q, Eko F, McDonald MA, Reed M, Svoboda P, Stuchlik O, Pohl J, Lutter E, Bandea C, Black CM, Igietseme JU. The molecular mechanism of induction of unfolded protein response by Chlamydia. Biochem Biophys Res Commun 2019; 508:421-429. [PMID: 30503337 PMCID: PMC6343654 DOI: 10.1016/j.bbrc.2018.11.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 11/06/2018] [Indexed: 11/21/2022]
Abstract
The unfolded protein response (UPR) contributes to chlamydial pathogenesis, as a source of lipids and ATP during replication, and for establishing the initial anti-apoptotic state of host cell that ensures successful inclusion development. The molecular mechanism(s) of UPR induction by Chlamydia is unknown. Chlamydia use type III secretion system (T3SS) effector proteins (e.g, the Translocated Actin-Recruiting Phosphoprotein (Tarp) to stimulate host cell's cytoskeletal reorganization that facilitates invasion and inclusion development. We investigated the hypothesis that T3SS effector-mediated assembly of myosin-II complex produces activated non-muscle myosin heavy chain II (NMMHC-II), which then binds the UPR master regulator (BiP) and/or transducers to induce UPR. Our results revealed the interaction of the chlamydial effector proteins (CT228 and Tarp) with components of the myosin II complex and UPR regulator and transducer during infection. These interactions caused the activation and binding of NMMHC-II to BiP and IRE1α leading to UPR induction. In addition, specific inhibitors of myosin light chain kinase, Tarp oligomerization and myosin ATPase significantly reduced UPR activation and Chlamydia replication. Thus, Chlamydia induce UPR through T3SS effector-mediated activation of NMMHC-II components of the myosin complex to facilitate infectivity. The finding provides greater insights into chlamydial pathogenesis with the potential to identify therapeutic targets and formulations.
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Affiliation(s)
- Zenas George
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Yusuf Omosun
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA; Morehouse School of Medicine, Atlanta, GA, USA
| | | | - Jason Goldstein
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - James Partin
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Kahaliah Joseph
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Debra Ellerson
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Qing He
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA; Morehouse School of Medicine, Atlanta, GA, USA
| | - Francis Eko
- Morehouse School of Medicine, Atlanta, GA, USA
| | | | - Matthew Reed
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Pavel Svoboda
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Olga Stuchlik
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Jan Pohl
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | | | - Claudiu Bandea
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Carolyn M Black
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
| | - Joseph U Igietseme
- Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA; Morehouse School of Medicine, Atlanta, GA, USA.
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132
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Farouk F, Shamma R. Chemical structure modifications and nano-technology applications for improving ADME-Tox properties, a review. Arch Pharm (Weinheim) 2019; 352:e1800213. [DOI: 10.1002/ardp.201800213] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/02/2018] [Accepted: 11/11/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Faten Farouk
- Faculty of Pharmacy, Department of Pharmaceutical Chemistry; Ahram Canadian University; Giza Egypt
| | - Rehab Shamma
- Faculty of Pharmacy, Department of Pharmaceutics and Industrial Pharmacy; Cairo University; Cairo Egypt
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133
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Liu X, Liu J, Liu D, Han Y, Xu H, Liu L, Leng X, Kong D. A cell-penetrating peptide-assisted nanovaccine promotes antigen cross-presentation and anti-tumor immune response. Biomater Sci 2019; 7:5516-5527. [DOI: 10.1039/c9bm01183h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Exogenous antigens processed in the cytosol and subsequently cross-presented on major histocompatibility complex class I (MHC-I) molecules activate cytotoxic CD8+ lymphocytes (CTL), which are crucial in cancer immunotherapy.
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Affiliation(s)
- Xiaoxuan Liu
- Tianjin Key Laboratory of Biomaterials
- Institute of Biomedical Engineering
- Peking Union Medical College & Chinese Academy of Medical Sciences
- Tianjin 300192
- China
| | - Jiale Liu
- Tianjin Key Laboratory of Biomaterials
- Institute of Biomedical Engineering
- Peking Union Medical College & Chinese Academy of Medical Sciences
- Tianjin 300192
- China
| | - Dan Liu
- Tianjin Key Laboratory of Biomaterials
- Institute of Biomedical Engineering
- Peking Union Medical College & Chinese Academy of Medical Sciences
- Tianjin 300192
- China
| | - Yanfeng Han
- School of Biomedical Sciences
- University of Queensland
- St Lucia QLD 4072
- Australia
| | - Haiyan Xu
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences
- School of Basic Medicine Peking Union Medical College
- Beijing100730
- China
| | - Lanxia Liu
- Tianjin Key Laboratory of Biomaterials
- Institute of Biomedical Engineering
- Peking Union Medical College & Chinese Academy of Medical Sciences
- Tianjin 300192
- China
| | - Xigang Leng
- Tianjin Key Laboratory of Biomaterials
- Institute of Biomedical Engineering
- Peking Union Medical College & Chinese Academy of Medical Sciences
- Tianjin 300192
- China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology
- Key Laboratory of Bioactive Materials of Ministry of Education
- College of Life Science
- Nankai University
- Tianjin 300071
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134
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Pérez de Vega MJ, Ferrer-Montiel A, González-Muñiz R. Recent progress in non-opioid analgesic peptides. Arch Biochem Biophys 2018; 660:36-52. [DOI: 10.1016/j.abb.2018.10.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 02/08/2023]
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135
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Peptide-based targeted therapeutics: Focus on cancer treatment. J Control Release 2018; 292:141-162. [DOI: 10.1016/j.jconrel.2018.11.004] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/03/2018] [Accepted: 11/03/2018] [Indexed: 12/14/2022]
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136
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Affiliation(s)
- Xun Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China
| | - Fan Wu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China
| | - Yong Ji
- Department of Cardiothoracic Surgery, Wuxi People’s Hospital Affiliated to Nanjing Medical University, Wuxi 214023, China
| | - Lichen Yin
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science & Technology, Soochow University, Suzhou 215123, China
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137
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Santos RS, Figueiredo C, Azevedo NF, Braeckmans K, De Smedt SC. Nanomaterials and molecular transporters to overcome the bacterial envelope barrier: Towards advanced delivery of antibiotics. Adv Drug Deliv Rev 2018; 136-137:28-48. [PMID: 29248479 DOI: 10.1016/j.addr.2017.12.010] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 12/10/2017] [Accepted: 12/12/2017] [Indexed: 01/13/2023]
Abstract
With the dramatic consequences of bacterial resistance to antibiotics, nanomaterials and molecular transporters have started to be investigated as alternative antibacterials or anti-infective carrier systems to improve the internalization of bactericidal drugs. However, the capability of nanomaterials/molecular transporters to overcome the bacterial cell envelope is poorly understood. It is critical to consider the sophisticated architecture of bacterial envelopes and reflect how nanomaterials/molecular transporters can interact with these envelopes, being the major aim of this review. The first part of this manuscript overviews the permeability of bacterial envelopes and how it limits the internalization of common antibiotic and novel oligonucleotide drugs. Subsequently we critically discuss the mechanisms that allow nanomaterials/molecular transporters to overcome the bacterial envelopes, focusing on the most promising ones to this end - siderophores, cyclodextrins, metal nanoparticles, antimicrobial/cell-penetrating peptides and fusogenic liposomes. This review may stimulate drug delivery and microbiology scientists in designing effective nanomaterials/molecular transporters against bacterial infections.
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138
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Nayak K, Misra M. A review on recent drug delivery systems for posterior segment of eye. Biomed Pharmacother 2018; 107:1564-1582. [DOI: 10.1016/j.biopha.2018.08.138] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 08/24/2018] [Accepted: 08/25/2018] [Indexed: 12/12/2022] Open
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139
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Slastnikova TA, Ulasov AV, Rosenkranz AA, Sobolev AS. Targeted Intracellular Delivery of Antibodies: The State of the Art. Front Pharmacol 2018; 9:1208. [PMID: 30405420 PMCID: PMC6207587 DOI: 10.3389/fphar.2018.01208] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 10/03/2018] [Indexed: 12/11/2022] Open
Abstract
A dominant area of antibody research is the extension of the use of this mighty experimental and therapeutic tool for the specific detection of molecules for diagnostics, visualization, and activity blocking. Despite the ability to raise antibodies against different proteins, numerous applications of antibodies in basic research fields, clinical practice, and biotechnology are restricted to permeabilized cells or extracellular antigens, such as membrane or secreted proteins. With the exception of small groups of autoantibodies, natural antibodies to intracellular targets cannot be used within living cells. This excludes the scope of a major class of intracellular targets, including some infamous cancer-associated molecules. Some of these targets are still not druggable via small molecules because of large flat contact areas and the absence of deep hydrophobic pockets in which small molecules can insert and perturb their activity. Thus, the development of technologies for the targeted intracellular delivery of antibodies, their fragments, or antibody-like molecules is extremely important. Various strategies for intracellular targeting of antibodies via protein-transduction domains or their mimics, liposomes, polymer vesicles, and viral envelopes, are reviewed in this article. The pitfalls, challenges, and perspectives of these technologies are discussed.
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Affiliation(s)
- Tatiana A. Slastnikova
- Laboratory of Molecular Genetics of Intracellular Transport, Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia
| | - A. V. Ulasov
- Laboratory of Molecular Genetics of Intracellular Transport, Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia
| | - A. A. Rosenkranz
- Laboratory of Molecular Genetics of Intracellular Transport, Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia
- Faculty of Biology, M. V. Lomonosov Moscow State University, Moscow, Russia
| | - A. S. Sobolev
- Laboratory of Molecular Genetics of Intracellular Transport, Institute of Gene Biology, Russian Academy of Sciences, Moscow, Russia
- Faculty of Biology, M. V. Lomonosov Moscow State University, Moscow, Russia
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140
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Bolhassani A, Shahbazi S, Milani A, Nadji SA. Small Heat Shock Proteins B1 and B6: Which One is the Most Effective Adjuvant in Therapeutic HPV Vaccine? IUBMB Life 2018; 70:1002-1011. [DOI: 10.1002/iub.1892] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/05/2018] [Accepted: 06/06/2018] [Indexed: 12/25/2022]
Affiliation(s)
- Azam Bolhassani
- Department of Hepatitis and AIDs; Pasteur Institute of Iran; Tehran Iran
| | - Sepideh Shahbazi
- Department of Hepatitis and AIDs; Pasteur Institute of Iran; Tehran Iran
| | - Alireza Milani
- Department of Hepatitis and AIDs; Pasteur Institute of Iran; Tehran Iran
| | - Seyed Alireza Nadji
- Virology Research Center (VRC); National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences; Tehran Iran
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141
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Characterization of membrane penetration and cytotoxicity of C9orf72-encoding arginine-rich dipeptides. Sci Rep 2018; 8:12740. [PMID: 30143685 PMCID: PMC6109075 DOI: 10.1038/s41598-018-31096-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 08/02/2018] [Indexed: 11/08/2022] Open
Abstract
Cell-penetrating peptides (CPPs) including arginine-rich peptides are attracting a lot of attention due to their potential as a novel intracellular drug delivery tool without substantial toxicity. On the other hand, disease-associated arginine-rich CPPs, such as poly-PR and poly-GR translated from C9orf72 gene, also efficiently enter neuronal cells and then kill them. Although both non-harmful CPPs and harmful poly-PR/GR penetrate the plasma membrane using same arginine residues, little is known about the factors which determine the toxicity of the pathogenic CPPs. Here, we show that poly-PR and poly-GR, but not other Arg-rich CPPs, specifically distributed to nucleolus via interaction with RNA. Importantly, C9orf72-dipeptides, but not other Arg-rich CPPs, caused inhibition of protein translation and cell death. Raising extracellular pH enhanced the cell penetration of poly-PR. The repeat number of (PR) affected the secondary structure and determined the intracellular delivery rate and neurotoxicity, and enforced intracellular delivery of non-penetrating short poly-PR peptide caused cell death, suggesting that modulation of extracellular environment to inhibit the uptake of Arg-rich dipeptides might be a drug target against poly-PR/GR-mediated neurotoxicity.
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142
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Sönmez M, Ficai D, Ficai A, Alexandrescu L, Georgescu M, Trusca R, Gurau D, Titu MA, Andronescu E. Applications of mesoporous silica in biosensing and controlled release of insulin. Int J Pharm 2018; 549:179-200. [PMID: 30016674 DOI: 10.1016/j.ijpharm.2018.07.037] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 01/22/2023]
Abstract
The development of new oral insulin delivery systems could bring significant benefits to insulin-dependent patients due to the simplicity of the method, avoidance of pain caused by parenteral administration and maintenance of optimal therapeutic levels for a longer period. However, administration of such therapeutic proteins orally remains a challenge because insulin (Ins) is a very sensitive molecule and can be easily degraded under the existing pH conditions in the stomach and intestines. Moreover, due to the large size of insulin, intestinal epithelium permeability is very low. This could be improved by immobilizing insulin in the mesoporous silica pores (MSN), acting as a shield to protect the molecule integrity from the proteolytic degradation existing in the stomach and upper part of the small intestine. Due to the high adsorption capacity of insulin, biocompatibility, ease of functionalization with various organic and/or inorganic groups, high mechanical and chemical resistance, adjustable pore size and volume, MSN is considered an ideal candidate for the development of controlled release systems that are sensitive to various stimuli (pH, temperature) as well as to glucose. Modifying MSN surfaces by coating with various mucoadhesive polymers (chitosan, alginate, etc.) will also facilitate interaction with the intestinal mucus and improve intestinal retention time. Moreover, the development of glucose-responsive systems for achieving MSN-based self-regulated insulin delivery, decorated with various components serving as sensors - glucose oxidase (GODx) and phenylboronic acid (PBA) that can control the insulin dosage, avoiding overdose leading to serious hypoglycemia. MSN have also been tested for application as biosensors for glucose monitoring.
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Affiliation(s)
- Maria Sönmez
- Research Institute of the University of Bucharest, 36-46 bd. M. Kogalniceanu, Bucharest, Romania
| | - Denisa Ficai
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, 1-7 Polizu St., Bucharest, Romania
| | - Anton Ficai
- S.C. Metav R&D S.A, 31 C.A. Rosetti Str., Bucharest, Romania
| | - Laurentia Alexandrescu
- National Research & Development Institute for Textiles and Leather-Division: Leather and Footwear Research Institute, 93 Ion Minulescu St., Bucharest, Romania
| | - Mihai Georgescu
- National Research & Development Institute for Textiles and Leather-Division: Leather and Footwear Research Institute, 93 Ion Minulescu St., Bucharest, Romania
| | - Roxana Trusca
- S.C. Metav R&D S.A, 31 C.A. Rosetti Str., Bucharest, Romania
| | - Dana Gurau
- National Research & Development Institute for Textiles and Leather-Division: Leather and Footwear Research Institute, 93 Ion Minulescu St., Bucharest, Romania
| | | | - Ecaterina Andronescu
- Politehnica University of Bucharest, Faculty of Applied Chemistry and Material Science, 1-7 Polizu St., Bucharest, Romania.
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143
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Ahmed CM, Massengill MT, Brown EE, Ildefonso CJ, Johnson HM, Lewin AS. A cell penetrating peptide from SOCS-1 prevents ocular damage in experimental autoimmune uveitis. Exp Eye Res 2018; 177:12-22. [PMID: 30048621 DOI: 10.1016/j.exer.2018.07.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 07/04/2018] [Accepted: 07/18/2018] [Indexed: 12/11/2022]
Abstract
We describe an immunosuppressive peptide corresponding to the kinase inhibitory region (KIR) of the intracellular checkpoint protein suppressor of cytokine signaling 1 (SOCS-1) that binds to the phospho-tyrosine containing regions of the tyrosine kinases JAK2 and TYK2 and the adaptor protein MAL, and thereby inhibits signaling downstream from these signaling mediators. The peptide, SOCS1-KIR, is thus capable of downregulating overactive JAK/STAT or NF-kB signaling in somatic cells, including those in many compartments of the eye. Attachment of poly-arginine to this peptide (R9-SOCS1-KIR) allows it to penetrate the plasma membrane in aqueous media. R9-SOCS1-KIR was tested in ARPE-19 cells and was found to attenuate mediators of inflammation by blocking the inflammatory effects of IFNγ, TNFα, or IL-17A. R9-SOCS1-KIR and also protected against TNFα or IL-17A mediated damage to the barrier properties of ARPE-19 cells, as evidenced by immunostaining with the tight junction protein, zona occludin 1 (ZO-1), and measurement of transepithelial electrical resistance (TEER). Experimental autoimmune uveitis (EAU) was generated in B10. RIII mice using a peptide of interphotoreceptor retinal binding protein (IRBP161-180) as immunogen. Topical administration of R9-SOCS1-KIR, 2 days before (prophylactic), or 7 days after immunization (therapeutic) protected ocular structure and function as seen by fundoscopy, optical coherence tomography (OCT), and electroretinography (ERG). The ability R9-SOCS1-KIR to suppress ocular inflammation and preserve barrier properties of retinal pigment epithelium makes it a potential candidate for treatment of autoimmune uveitis.
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Affiliation(s)
- Chulbul M Ahmed
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL, 32610 USA
| | - Michael T Massengill
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL, 32610 USA
| | - Emily E Brown
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL, 32610 USA
| | | | - Howard M Johnson
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, 32611, USA
| | - Alfred S Lewin
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL, 32610 USA.
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144
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Shahbazi S, Bolhassani A. Comparison of six cell penetrating peptides with different properties for in vitro and in vivo delivery of HPV16 E7 antigen in therapeutic vaccines. Int Immunopharmacol 2018; 62:170-180. [PMID: 30015237 DOI: 10.1016/j.intimp.2018.07.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/06/2018] [Accepted: 07/09/2018] [Indexed: 12/22/2022]
Abstract
The high risk human papillomavirus (HPV) types 16 and 18 are globally linked to >50% and 20% of all cervical cancers, respectively. The HPV E7 oncoprotein was determined as a therapeutic vaccine target due to its constitutive expression by HPV-infected cells. The findings demonstrated the efficiency of therapeutic HPV DNA- and protein-based vaccines in preclinical and clinical trials. However, there are limitations for penetration of DNA and protein constructs into the cells without a suitable delivery system. Recently, several cell penetrating peptides (CPPs) have been suggested for delivery of nucleic acids and proteins into cells through covalent or non-covalent fashion. In this study, we determined highly efficient CPPs for the controlled delivery of HPV16 E7 antigen, in vitro and in vivo. Our data indicated the effective delivery of E7 protein by Pep-1, Cady-2, P28 and hPP10, and E7 DNA by MPG and +36 GFP CPPs in HEK-293T cell line at certain ratios. Moreover, immunization with the heterologous MPG + E7 DNA prime/P28 + rE7 protein boost elicited a higher Th1 cellular immune response with a predominant IFN-γ profile and strong Granzyme B secretion than those induced by other groups in a murine tumor model. Indeed, the groups vaccinated with rE7+ P28/rE7+ P28, MPG+ E7 DNA/P28+ rE7, and E7 DNA+ MPG/E7 DNA+ MPG nanovaccines displayed complete protection and remained tumor-free >60 days after treatment. These data suggest P28 and MPG as promising protein and gene delivery systems for development of HPV therapeutic vaccines.
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Affiliation(s)
- Sepideh Shahbazi
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Azam Bolhassani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran.
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145
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Roux LN, Petit I, Domart R, Concordet JP, Qu J, Zhou H, Joliot A, Ferrigno O, Aberdam D. Modeling of Aniridia-Related Keratopathy by CRISPR/Cas9 Genome Editing of Human Limbal Epithelial Cells and Rescue by Recombinant PAX6 Protein. Stem Cells 2018; 36:1421-1429. [PMID: 29808941 DOI: 10.1002/stem.2858] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 05/08/2018] [Accepted: 05/14/2018] [Indexed: 12/24/2022]
Abstract
Heterozygous PAX6 gene mutations leading to haploinsufficiency are the main cause of congenital aniridia, a rare and progressive panocular disease characterized by reduced visual acuity. Up to 90% of patients suffer from aniridia-related keratopathy (ARK), caused by a combination of factors including limbal epithelial stem cell (LSC) deficiency, impaired healing response and abnormal differentiation of the corneal epithelium. It usually begins in the first decade of life, resulting in recurrent corneal erosions, sub-epithelial fibrosis, and corneal opacification. Unfortunately, there are currently no efficient treatments available for these patients and no in vitro model for this pathology. We used CRISPR/Cas9 technology to introduce into the PAX6 gene of LSCs a heterozygous nonsense mutation found in ARK patients. Nine clones carrying a p.E109X mutation on one allele were obtained with no off-target mutations. Compared with the parental LSCs, heterozygous mutant LSCs displayed reduced expression of PAX6 and marked slow-down of cell proliferation, migration and detachment. Moreover, addition to the culture medium of recombinant PAX6 protein fused to a cell penetrating peptide was able to activate the endogenous PAX6 gene and to rescue phenotypic defects of mutant LSCs, suggesting that administration of such recombinant PAX6 protein could be a promising therapeutic approach for aniridia-related keratopathy. More generally, our results demonstrate that introduction of disease mutations into LSCs by CRISPR/Cas9 genome editing allows the creation of relevant cellular models of ocular disease that should greatly facilitate screening of novel therapeutic approaches. Stem Cells 2018;36:1421-1429.
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Affiliation(s)
- Lauriane N Roux
- INSERM U976, Hôpital Saint-Louis, Paris, France.,Université Paris-Diderot, Sorbonne Paris Cité, Paris, France
| | - Isabelle Petit
- INSERM U976, Hôpital Saint-Louis, Paris, France.,Université Paris-Diderot, Sorbonne Paris Cité, Paris, France
| | - Romain Domart
- INSERM U1154, CNRS UMR 7196, Museum National d'Histoire Naturelle, Paris, France
| | - Jean-Paul Concordet
- INSERM U1154, CNRS UMR 7196, Museum National d'Histoire Naturelle, Paris, France
| | - Jieqiong Qu
- Department of Human Developmental biology, Radboud University, Nijmegen, The Netherlands.,Faculty of Sciences, Department of Human Genetics, Radboud University Nijmegen, The Netherlands
| | - Huiqing Zhou
- Department of Human Developmental biology, Radboud University, Nijmegen, The Netherlands.,Faculty of Sciences, Department of Human Genetics, Radboud University Nijmegen, The Netherlands
| | - Alain Joliot
- Collège de France CNRS/UMR 7241 - INSERM U1050, Paris, France
| | | | - Daniel Aberdam
- INSERM U976, Hôpital Saint-Louis, Paris, France.,Université Paris-Diderot, Sorbonne Paris Cité, Paris, France
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146
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Disassembling a cancer puzzle: Cell junctions and plasma membrane as targets for anticancer therapy. J Control Release 2018; 286:125-136. [PMID: 30030181 DOI: 10.1016/j.jconrel.2018.07.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 07/13/2018] [Accepted: 07/16/2018] [Indexed: 02/07/2023]
Abstract
Despite an enhanced permeability and retention effect typical of many solid tumors, drug penetration is not always sufficient. Possible strategies for the drug delivery improvement are a modification of the tumor cell-to-cell junctions and usage of cell membrane permeabilization proteins. In this review we discuss epithelial cell junctions as targets for a combined anticancer therapy and propose new possible sources of such agents. We suggest considering viral and bacterial pathogens disrupting epithelial layers as plentiful sources of new therapeutic agents for increasing tumor permeability for other effector agents. We also observe the application of pore forming proteins and peptides of different origin for cytoplasmic delivery of anti-cancer agents and consider the main obstacles of their use in vivo.
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147
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Carvalho PM, Felício MR, Santos NC, Gonçalves S, Domingues MM. Application of Light Scattering Techniques to Nanoparticle Characterization and Development. Front Chem 2018; 6:237. [PMID: 29988578 PMCID: PMC6026678 DOI: 10.3389/fchem.2018.00237] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/04/2018] [Indexed: 01/07/2023] Open
Abstract
Over the years, the scientific importance of nanoparticles for biomedical applications has increased. The high stability and biocompatibility, together with the low toxicity of the nanoparticles developed lead to their use as targeted drug delivery systems, bioimaging systems, and biosensors. The wide range of nanoparticles size, from 10 nm to 1 μm, as well as their optical properties, allow them to be studied using microscopy and spectroscopy techniques. In order to be effectively used, the physicochemical properties of nanoparticle formulations need to be taken into account, namely, particle size, surface charge distribution, surface derivatization and/or loading capacity, and related interactions. These properties need to be optimized considering the final nanoparticle intended biodistribution and target. In this review, we cover light scattering based techniques, namely dynamic light scattering and zeta-potential, used for the physicochemical characterization of nanoparticles. Dynamic light scattering is used to measure nanoparticles size, but also to evaluate their stability over time in suspension, at different pH and temperature conditions. Zeta-potential is used to characterize nanoparticles surface charge, obtaining information about their stability and surface interaction with other molecules. In this review, we focus on nanoparticle characterization and application in infection, cancer and cardiovascular diseases.
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Affiliation(s)
- Patrícia M Carvalho
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Mário R Felício
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Nuno C Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Sónia Gonçalves
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Marco M Domingues
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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148
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Saponaro A, Cantini F, Porro A, Bucchi A, DiFrancesco D, Maione V, Donadoni C, Introini B, Mesirca P, Mangoni ME, Thiel G, Banci L, Santoro B, Moroni A. A synthetic peptide that prevents cAMP regulation in mammalian hyperpolarization-activated cyclic nucleotide-gated (HCN) channels. eLife 2018; 7:35753. [PMID: 29923826 PMCID: PMC6023613 DOI: 10.7554/elife.35753] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 06/14/2018] [Indexed: 12/13/2022] Open
Abstract
Binding of TRIP8b to the cyclic nucleotide binding domain (CNBD) of mammalian hyperpolarization-activated cyclic nucleotide-gated (HCN) channels prevents their regulation by cAMP. Since TRIP8b is expressed exclusively in the brain, we envisage that it can be used for orthogonal control of HCN channels beyond the central nervous system. To this end, we have identified by rational design a 40-aa long peptide (TRIP8bnano) that recapitulates affinity and gating effects of TRIP8b in HCN isoforms (hHCN1, mHCN2, rbHCN4) and in the cardiac current If in rabbit and mouse sinoatrial node cardiomyocytes. Guided by an NMR-derived structural model that identifies the key molecular interactions between TRIP8bnano and the HCN CNBD, we further designed a cell-penetrating peptide (TAT-TRIP8bnano) which successfully prevented β-adrenergic activation of mouse If leaving the stimulation of the L-type calcium current (ICaL) unaffected. TRIP8bnano represents a novel approach to selectively control HCN activation, which yields the promise of a more targeted pharmacology compared to pore blockers.
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Affiliation(s)
- Andrea Saponaro
- Department of Biosciences, University of Milan, Milan, Italy
| | - Francesca Cantini
- Department of Chemistry, University of Florence, Florence, Italy.,Magnetic Resonance Center, University of Florence, Florence, Italy
| | | | - Annalisa Bucchi
- Department of Biosciences, University of Milan, Milan, Italy
| | | | - Vincenzo Maione
- Interuniversity Consortium for Magnetic Resonance of Metalloproteins, Sesto Fiorentino, Italy
| | - Chiara Donadoni
- Department of Biosciences, University of Milan, Milan, Italy
| | - Bianca Introini
- Department of Biosciences, University of Milan, Milan, Italy
| | - Pietro Mesirca
- Institut de Génomique Fonctionnelle, CNRS, INSERM F-34094, Université de Montpellier, Montpellier, France.,Laboratory of Excellence Ion Channels Science and Therapeutics, Valbonne, France
| | - Matteo E Mangoni
- Institut de Génomique Fonctionnelle, CNRS, INSERM F-34094, Université de Montpellier, Montpellier, France.,Laboratory of Excellence Ion Channels Science and Therapeutics, Valbonne, France
| | - Gerhard Thiel
- Department of Biology, TU-Darmstadt, Darmstadt, Germany
| | - Lucia Banci
- Department of Chemistry, University of Florence, Florence, Italy.,Magnetic Resonance Center, University of Florence, Florence, Italy.,Interuniversity Consortium for Magnetic Resonance of Metalloproteins, Sesto Fiorentino, Italy.,Institute of Neurosciences, Consiglio Nazionale delle Ricerche, Florence, Italy
| | - Bina Santoro
- Department of Neuroscience, Columbia University, New York, United States
| | - Anna Moroni
- Department of Biosciences, University of Milan, Milan, Italy.,Institute of Biophysics, Consiglio Nazionale delle Ricerche, Milan, Italy
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149
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Kim GC, Ahn JH, Oh JH, Nam S, Hyun S, Yu J, Lee Y. Photoswitching of Cell Penetration of Amphipathic Peptides by Control of α-Helical Conformation. Biomacromolecules 2018; 19:2863-2869. [DOI: 10.1021/acs.biomac.8b00428] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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150
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Stereochemistry as a determining factor for the effect of a cell-penetrating peptide on cellular viability and epithelial integrity. Biochem J 2018; 475:1773-1788. [PMID: 29686042 DOI: 10.1042/bcj20180155] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/19/2018] [Accepted: 04/20/2018] [Indexed: 01/07/2023]
Abstract
Cell-penetrating peptides (CPPs) comprise efficient peptide-based delivery vectors. Owing to the inherent poor enzymatic stability of peptides, CPPs displaying partial or full replacement of l-amino acids with the corresponding d-amino acids might possess advantages as delivery vectors. Thus, the present study aims to elucidate the membrane- and metabolism-associated effects of l-Penetratin (l-PEN) and its corresponding all-d analog (d-PEN). These effects were investigated when exerted on hepatocellular (HepG2) or intestinal (Caco-2 and IEC-6) cell culture models. The head-to-head comparison of these enantiomeric CPPs included evaluation of their effects on cell viability and morphology, epithelial membrane integrity, and cellular ultrastructure. In all investigated cell models, a rapid decrease in cell viability, pronounced membrane perturbation and an altered ultrastructure were detected upon exposure to d-PEN. At equimolar concentrations, these observations were less pronounced or even absent for cells exposed to l-PEN. Both CPPs remained stable for at least 2 h during exposure to proliferating cells (cultured for 24 h), although d-PEN exhibited a longer half-life when compared with that of l-PEN when exposed to well-differentiated cell monolayers (cultured for 18-20 days). Thus, the stereochemistry of the CPP penetratin significantly influences its effects on cell viability and epithelial integrity when profiled against a panel of mammalian cells.
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