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Spiller S, Wippold T, Bellmann-Sickert K, Franz S, Saalbach A, Anderegg U, Beck-Sickinger AG. Protease-Triggered Release of Stabilized CXCL12 from Coated Scaffolds in an Ex Vivo Wound Model. Pharmaceutics 2021; 13:pharmaceutics13101597. [PMID: 34683890 PMCID: PMC8539926 DOI: 10.3390/pharmaceutics13101597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022] Open
Abstract
Biomaterials are designed to improve impaired healing of injured tissue. To accomplish better cell integration, we suggest to coat biomaterial surfaces with bio-functional proteins. Here, a mussel-derived surface-binding peptide is used and coupled to CXCL12 (stromal cell-derived factor 1α), a chemokine that activates CXCR4 and consequently recruits tissue-specific stem and progenitor cells. CXCL12 variants with either non-releasable or protease-mediated-release properties were designed and compared. Whereas CXCL12 was stabilized at the N-terminus for protease resistance, a C-terminal linker was designed that allowed for specific cleavage-mediated release by matrix metalloproteinase 9 and 2, since both enzymes are frequently found in wound fluid. These surface adhesive CXCL12 derivatives were produced by expressed protein ligation. Functionality of the modified chemokines was assessed by inositol phosphate accumulation and cell migration assays. Increased migration of keratinocytes and primary mesenchymal stem cells was demonstrated. Immobilization and release were studied for bioresorbable PCL-co-LC scaffolds, and accelerated wound closure was demonstrated in an ex vivo wound healing assay on porcine skin grafts. After 24 h, a significantly improved CXCL12-specific growth stimulation of the epithelial tips was already observed. The presented data display a successful application of protein-coated biomaterials for skin regeneration.
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Affiliation(s)
- Sabrina Spiller
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Brüderstr. 34, 04103 Leipzig, Germany; (S.S.); (K.B.-S.)
| | - Tom Wippold
- Department of Dermatology, Venerology and Allergology, Leipzig University, Johannisallee 30, 04103 Leipzig, Germany; (T.W.); (S.F.); (A.S.)
| | - Kathrin Bellmann-Sickert
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Brüderstr. 34, 04103 Leipzig, Germany; (S.S.); (K.B.-S.)
| | - Sandra Franz
- Department of Dermatology, Venerology and Allergology, Leipzig University, Johannisallee 30, 04103 Leipzig, Germany; (T.W.); (S.F.); (A.S.)
| | - Anja Saalbach
- Department of Dermatology, Venerology and Allergology, Leipzig University, Johannisallee 30, 04103 Leipzig, Germany; (T.W.); (S.F.); (A.S.)
| | - Ulf Anderegg
- Department of Dermatology, Venerology and Allergology, Leipzig University, Johannisallee 30, 04103 Leipzig, Germany; (T.W.); (S.F.); (A.S.)
- Correspondence: (U.A.); (A.G.B.-S.); Tel.: +49-341-972-5881 (U.A.); +49-341-973-6900 (A.G.B.-S.); Fax: +49-341-972-5878 (U.A.); +49-341-973-6909 (A.G.B.-S.)
| | - Annette G. Beck-Sickinger
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Brüderstr. 34, 04103 Leipzig, Germany; (S.S.); (K.B.-S.)
- Correspondence: (U.A.); (A.G.B.-S.); Tel.: +49-341-972-5881 (U.A.); +49-341-973-6900 (A.G.B.-S.); Fax: +49-341-972-5878 (U.A.); +49-341-973-6909 (A.G.B.-S.)
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Fontes MMDS, Costa TC, Lopes MM, Souza RO, Carneiro LS, Paulino PVR, Chizzotti ML, Silva FF, Serão NVL, Duarte MDS. Intramuscular collagen characteristics and expression of related genes in skeletal muscle of cull cows receiving a high-energy diet. Meat Sci 2021; 177:108495. [PMID: 33756247 DOI: 10.1016/j.meatsci.2021.108495] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 03/01/2021] [Accepted: 03/08/2021] [Indexed: 11/28/2022]
Abstract
We aimed to investigate differences in the synthesis and metabolism of intramuscular collagen in the Longissimus thoracis (LT) muscle between heifers and cull-cows fed high-energy diet. Ten cull-cows, (74.9 ± 3.2 months age, weighing 536 ± 14.55 kg) and ten heifers (18.4 ± 3.2 months age, weighting 310.5 ± 14.5 kg) were fed with high-energy diets for 150 days. The total collagen content did not differ between treatments. Greater collagen solubility was observed in heifers than cull-cows, although no differences in lysyl oxidase activity were observed between treatments. No differences were observed for mRNA expression of CO1A1, MMP2, MMP9 and TIMP2 between treatments. However, cull-cows presented greater mRNA expression of COL3A1, TIMP1 and TIMP3 than heifers. Our data give no indication that feeding a high-energy diet to cull-cows decreases the concentration of intramuscular collagen in the LT muscle or increases its solubility in respect to the collagen solubility in LT muscles from heifers on the same diet.
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Affiliation(s)
- Marta Maria Dos Santos Fontes
- Department of Animal Science, Universidade Federal de Vicosa, 36570-900 Viçosa, MG, Brazil; Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Thaís Correia Costa
- Department of Animal Science, Universidade Federal de Vicosa, 36570-900 Viçosa, MG, Brazil; Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Mariana Mescouto Lopes
- Department of Animal Science, Universidade Federal de Vicosa, 36570-900 Viçosa, MG, Brazil; Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Ranyeri Oliveira Souza
- Department of Animal Science, Universidade Federal de Vicosa, 36570-900 Viçosa, MG, Brazil; Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Lorena Silva Carneiro
- Department of Animal Science, Universidade Federal de Vicosa, 36570-900 Viçosa, MG, Brazil; Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | | | - Mário Luiz Chizzotti
- Department of Animal Science, Universidade Federal de Vicosa, 36570-900 Viçosa, MG, Brazil
| | - Fabyano Fonseca Silva
- Department of Animal Science, Universidade Federal de Vicosa, 36570-900 Viçosa, MG, Brazil
| | | | - Marcio de Souza Duarte
- Department of Animal Science, Universidade Federal de Vicosa, 36570-900 Viçosa, MG, Brazil; Muscle Biology and Nutrigenomics Laboratory, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil.
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Mohammadi M, Rezaie E, Sakhteman A, Zarei N. A highly potential cleavable linker for tumor targeting antibody-chemokines. J Biomol Struct Dyn 2020; 40:2546-2556. [PMID: 33118476 DOI: 10.1080/07391102.2020.1841025] [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: 12/23/2022]
Abstract
Chemokines are the large family of chemotactic cytokines that play an important role in leukocyte movement and migration stimulation. Until now, several antibody-cytokine (chemokine) fusion proteins have been investigated in clinical trials because of their ability to evoke the circulating leukocytes far from the tumor site. In this case, creating the concentration gradient regarding the chemokine is very important to recruit the circulating leukocytes with maximum performance to the tumor environment. To achieve a proper gradient, the chemokine separation from the tumor antigen-bounded antibody can be very crucial. Thus, we designed a novel linker that can be cleaved by enzymes presented around the tumor site including cathepsin B, urokinase-type plasminogen activator (uPA) and matrix metalloproteinases (MMPs). Also, it can inhibit tumor progression by competing with the native substrate of key proteases in the tumor microenvironment. The proposed linker was evaluated using some bioinformatics approaches. In silico results showed that the linker is structurally stable and could be detected and cleaved using the mentioned enzymes.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mozafar Mohammadi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ehsan Rezaie
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | | | - Neda Zarei
- Department of Biology, Farhangian University, Tehran, Iran
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Development of latent Interferon alpha 2b as a safe therapeutic for treatment of Hepatitis C virus infection. Sci Rep 2019; 9:10867. [PMID: 31350425 PMCID: PMC6659634 DOI: 10.1038/s41598-019-47074-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 06/17/2019] [Indexed: 02/08/2023] Open
Abstract
Interferon therapy for the treatment of hepatitis C virus infection has very limited clinical application due to short serum half-life and side effects of therapy in systemic route of administration. In the present study, we have focused to improve the interferon therapy by overcoming the limitation of side effects. We hypothesized that latent interferon alpha 2b (IFNα2b) produced by fusion of Latency associated protein (LAP) domain of TGFβ and IFNα2b having HCV NS3 protease cleavage site as linker that will be activated only at target site (liver) by viral protease (HCV NS3 protease) present on the surface of infected cells. The fusion proteins were expressed in pichia pastoris as homodimer and cleaved by recombinant HCV NS3 protease in vitro into two fragments corresponding to the IFNα-2b and LAP respectively. The latency of chimeric proteins and biological activity after treatment with HCV NS3 protease was assessed by cytopathic effect inhibition assay in A594 cells infected with encephalomyocarditis virus (EMCV) and reduction in HCV viral load in Huh7 cells. The HCV NS3 protease was present on the surface of HCV replicating Huh7 cells in amount that activated half of the effective concentration (EC50) of latent IFNα2b fusion protein. As free circulating HCV NS3 protease was not detected in sera from chronic HCV patients and in vitro cleavage of intact latent IFNα2b fusion protein was not observed with peripheral blood mononuclear cells (PBMCs) isolated from chronic HCV patients, thus there are less likely chances of activation and off target binding of latent IFNα2b to show side effects during systemic route of administration. Therefore, most of the side effects of interferon can be overwhelmed at the cost of 50% reduced biological activity. Thus, the use of latent IFNα2b can be considered again as an option for treatment of HCV infection in combination with direct acting antivirals rather than alone with improved safety profile.
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Guo J, Sun H, Lei W, Tang Y, Hong S, Yang H, Tay FR, Huang C. MMP-8-Responsive Polyethylene Glycol Hydrogel for Intraoral Drug Delivery. J Dent Res 2019; 98:564-571. [PMID: 30876379 DOI: 10.1177/0022034519831931] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Currently available drug delivery systems for oral diseases suffer from short retention time and poor local concentrations at the target site. A biodegradable stimulus-responsive hydrogel was synthesized in the present study to evaluate its application as an environmentally sensitive carrier for on-demand intraoral drug delivery. The hydrogel was synthesized from diacrylate-containing polyethylene glycol-based scaffolds and a cysteine-terminated peptide crosslinker (CGPQG↓IWGQC) via a Michael-type addition reaction. Because CGPQG↓IWGQC can be cleaved by matrix metalloproteinase 8 (MMP-8), minocycline hydrochloride, bovine serum albumin, or an antibacterial peptide (KSL) was incorporated into the scaffolds to evaluate the MMP-8-responsive release behavior of the on-demand drug delivery system. Hydrogel characterization and gelation kinetics were examined with gel time, Fourier-transform infrared spectroscopy, scanning electron microscopy, and measurements of rheologic parameters. Degradation behavior and MMP-8-responsive drug release were performed by high-performance liquid chromatography and protein-specific assay. Biocompatibility evaluation indicated that the hydrogels were noncytotoxic. Antibacterial testing demonstrated that the released drugs were able to maintain bioactivity. Taken together, these results suggest that the MMP-8-sensitive hydrogel is a promising candidate for on-demand intraoral localized drug delivery. Because MMP-8 is one of the most important biomarkers for periodontitis, the MMP-8-responsive hydrogel has potential to be used for in situ adaptive degradation in response to chronic periodontitis and peri-implantitis. This notion has to be tested in animal models of periodontal disease.
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Affiliation(s)
- J Guo
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedical Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - H Sun
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedical Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - W Lei
- 2 Department of Prosthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - Y Tang
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedical Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - S Hong
- 3 Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry, Wuhan University, Wuhan, China
| | - H Yang
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedical Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - F R Tay
- 4 Department of Endodontics, The Dental College of Georgia, Augusta, GA, USA
| | - C Huang
- 1 The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedical Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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Van Hove AH, Antonienko E, Burke K, Brown E, Benoit DS. Temporally tunable, enzymatically responsive delivery of proangiogenic peptides from poly(ethylene glycol) hydrogels. Adv Healthc Mater 2015; 4:2002-11. [PMID: 26149620 PMCID: PMC4696931 DOI: 10.1002/adhm.201500304] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 06/10/2015] [Indexed: 12/22/2022]
Abstract
Proangiogenic drugs hold great potential to promote reperfusion of ischemic tissues and in tissue engineering applications, but efficacy is limited by poor targeting and short half-lives. Methods to control release duration or provide enzymatically responsive drug delivery have independently improved drug efficacy. However, no material has been developed to temporally control the rate of enzymatically responsive drug release. To address this void, hydrogels are developed to provide sustained, tunable release of Qk, a proangiogenic peptide mimic of vascular endothelial growth factor, via tissue-specific enzymatic activity. After confirmation that sustained delivery of Qk is necessary for proangiogenic effects, a variety of previously identified matrix metalloproteinase (MMP)-degradable linkers are used to tether Qk to hydrogels. Of these, three (IPES↓LRAG, GPQG↓IWGQ, and VPLS↓LYSG) show MMP-responsive peptide release. These linkers provide tunable Qk release kinetics, with rates ranging from 1.64 to 19.9 × 10(-3) h(-1) in vitro and 4.82 to 8.94 × 10(-3) h(-1) in vivo. While Qk is confirmed to be bioactive as released, hydrogels releasing Qk fail to induce significant vascularization in vivo after one week, likely due to the use of nonenzymatically degradable hydrogels. While Qk is the focus of this study, the approach could easily be adapted to control the delivery of a variety of therapeutic molecules.
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Affiliation(s)
- Amy H. Van Hove
- Department of Biomedical Engineering, 207 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA
| | - Erin Antonienko
- Department of Biomedical Engineering, 207 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA
| | - Kathleen Burke
- Department of Biomedical Engineering, 207 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA
| | - Edward Brown
- Department of Biomedical Engineering, 207 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA
- Department of Neurobiology and Anatomy, University of Rochester, 601 Elmwood Ave, Rochester, NY, 14642, USA
| | - Danielle S.W. Benoit
- Department of Biomedical Engineering, 207 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA
- Department of Biomedical Genetics, 601 Elmwood Ave, University of Rochester, Rochester, NY 14642, USA
- Department of Chemical Engineering, 206 Gavett Hall, University of Rochester, Rochester, NY 14627 USA
- Center for Musculoskeletal Research, 601 Elmwood Ave, University of Rochester Medical Center, Rochester, NY 14642, USA
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Development and in vitro assessment of enzymatically-responsive poly(ethylene glycol) hydrogels for the delivery of therapeutic peptides. Biomaterials 2014; 35:9719-30. [PMID: 25178558 DOI: 10.1016/j.biomaterials.2014.08.019] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 08/10/2014] [Indexed: 01/09/2023]
Abstract
Despite the recent expansion of peptide drugs, delivery remains a challenge due to poor localization and rapid clearance. Therefore, a hydrogel-based platform technology was developed to control and sustain peptide drug release via matrix metalloproteinase (MMP) activity. Specifically, hydrogels were composed of poly(ethylene glycol) and peptide drugs flanked by MMP substrates and terminal cysteine residues as crosslinkers. First, peptide drug bioactivity was investigated in expected released forms (e.g., with MMP substrate residues) in vitro prior to incorporation into hydrogels. Three peptides (Qk (from Vascular Endothelial Growth Factor), SPARC113, and SPARC118 (from Secreted Protein Acidic and Rich in Cysteine)) retained bioactivity and were used as hydrogel crosslinkers in full MMP degradable forms. Upon treatment with MMP2, hydrogels containing Qk, SPARC113, and SPARC118 degraded in 6.7, 6, and 1 days, and released 5, 8, and, 19% of peptide, respectively. Further investigation revealed peptide drug size controlled hydrogel swelling and degradation rate, while hydrophobicity impacted peptide release. Additionally, Qk, SPARC113, and SPARC118 releasing hydrogels increased endothelial cell tube formation 3.1, 1.7, and 2.8-fold, respectively. While pro-angiogenic peptides were the focus of this study, the design parameters detailed allow for adaptation of hydrogels to control peptide release for a variety of therapeutic applications.
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Huang G, Yang D, Sun C, Huang J, Chen K, Zhang C, Chen H, Yao Q. A quicker degradation rate is yielded by a novel kind of transgenic silk fibroin consisting of shortened silk fibroin heavy chains fused with matrix metalloproteinase cleavage sites. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:1833-1842. [PMID: 24801061 DOI: 10.1007/s10856-014-5220-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 04/19/2014] [Indexed: 06/03/2023]
Abstract
Degradation performance of silk fibroin is an important property for its medical applications. Herein we constructed a shortened silk fibroin heavy chain protein fused with a matrix metalloproteinase cleavage site (SSFH-MMP) along with a glutathione S-transferase tag ahead. The digestion assay shows it can be cut by matrix metalloproteinase-2 (MMP-2) at its MMP cleavage site. Furthermore, we introduced the SSFH-MMP into silk fibroin by genetic modification of silkworms in order to increase the degradation rate of the silk fibroin. After acquisition of a race of transgenic silkworms with the coding sequence of the MMP cleavage site in their genomic DNA, we tested some properties of their silk fibroin designated TSF-MMP. The results show that the TSF-MMP has MMP cleavage sites and yields a quicker degradation rate during dilution in MMP-2 enzyme buffer or implantation into tumor tissues compared with that of normal silk fibroin. Moreover, the TSF-MMP is in vitro non-toxic to human bone marrow mesenchymal stem cells (hBM-MSCs) indicating that the TSF-MMP may become a biomaterial with a quicker degradation rate for its medical applications.
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Affiliation(s)
- Guoping Huang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212013, People's Republic of China,
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Mullen L, Adams G, Layward L, Vessillier S, Annenkov A, Mittal G, Rigby A, Sclanders M, Baker D, Gould D, Chernajovsky Y. Latent cytokines for targeted therapy of inflammatory disorders. Expert Opin Drug Deliv 2013; 11:101-10. [PMID: 24294995 DOI: 10.1517/17425247.2014.863872] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The use of cytokines as therapeutic agents is important, given their potent biological effects. However, this very potency, coupled with the pleiotropic nature and short half-life of these molecules, has limited their therapeutic use. Strategies to increase the half-life and to decrease toxicity are necessary to allow effective treatment with these molecules. AREAS COVERED A number of strategies are used to overcome the natural limitations of cytokines, including PEGylation, encapsulation in liposomes, fusion to targeting peptides or antibodies and latent cytokines. Latent cytokines are engineered using the latency-associated peptide of transforming growth factor-β to produce therapeutic cytokines/peptides that are released only at the site of disease by cleavage with disease-induced matrix metalloproteinases. The principles underlying the latent cytokine technology are described and are compared to other methods of cytokine delivery. The potential of this technology for developing novel therapeutic strategies for the treatment of diseases with an inflammatory-mediated component is discussed. EXPERT OPINION Methods of therapeutic cytokine delivery are addressed. The latent cytokine technology holds significant advantages over other methods of drug delivery by providing simultaneously increased half-life and localised drug delivery without systemic effects. Cytokines that failed clinical trials should be reassessed using this delivery system.
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Affiliation(s)
- Lisa Mullen
- Queen Mary University of London, William Harvey Research Institute, Bone and Joint Research Unit, Barts and The London Medical School , Charterhouse Square , London EC1M 6BQ, UK
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Chen X, Zaro JL, Shen WC. Fusion protein linkers: property, design and functionality. Adv Drug Deliv Rev 2013; 65:1357-69. [PMID: 23026637 DOI: 10.1016/j.addr.2012.09.039] [Citation(s) in RCA: 1169] [Impact Index Per Article: 106.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 09/05/2012] [Accepted: 09/20/2012] [Indexed: 01/21/2023]
Abstract
As an indispensable component of recombinant fusion proteins, linkers have shown increasing importance in the construction of stable, bioactive fusion proteins. This review covers the current knowledge of fusion protein linkers and summarizes examples for their design and application. The general properties of linkers derived from naturally-occurring multi-domain proteins can be considered as the foundation in linker design. Empirical linkers designed by researchers are generally classified into 3 categories according to their structures: flexible linkers, rigid linkers, and in vivo cleavable linkers. Besides the basic role in linking the functional domains together (as in flexible and rigid linkers) or releasing the free functional domain in vivo (as in in vivo cleavable linkers), linkers may offer many other advantages for the production of fusion proteins, such as improving biological activity, increasing expression yield, and achieving desirable pharmacokinetic profiles.
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Affiliation(s)
- Xiaoying Chen
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA
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Mullen L, Rigby A, Sclanders M, Adams G, Mittal G, Colston J, Fatah R, Subang C, Foster J, Francis-West P, Köster M, Hauser H, Layward L, Vessillier S, Annenkov A, Al-Izki S, Pryce G, Bolton C, Baker D, Gould DJ, Chernajovsky Y. Latency can be conferred to a variety of cytokines by fusion with latency-associated peptide from TGF-β. Expert Opin Drug Deliv 2013; 11:5-16. [DOI: 10.1517/17425247.2013.839655] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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12
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Koutsokeras A, Purkayastha N, Purkayashta N, Rigby A, Subang MC, Sclanders M, Vessillier S, Mullen L, Chernajovsky Y, Gould D. Generation of an efficiently secreted, cell penetrating NF-κB inhibitor. FASEB J 2013; 28:373-81. [PMID: 24072781 DOI: 10.1096/fj.13-236570] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Gene therapy is a powerful approach to treat disease locally. However, if the therapeutic target is intracellular, the therapeutic will be effective only in the cells where the therapeutic gene is delivered. We have engineered a fusion protein containing an intracellular inhibitor of the transcription factor NF-κB pathway that can be effectively secreted from producing cells. This fusion protein is cleaved extracellularly by metalloproteinases allowing release of a protein transduction domain (PTD) linked to the NF-κB inhibitor for translocation into neighboring cells. We show that engineered molecules can be efficiently secreted (>80%); are cleaved with matrix metalloprotease-1; inhibit NF-κB driven transcription in a biological assay with a human reporter cell line; and display significant inhibition in mouse paw inflammation models when delivered by lentivirus or secreting cells. No inhibition of NF-κB transcription or therapeutic effect was seen using molecules devoid of the PTD and NF-κB inhibitory domains. By creating a fusion protein with an endogenous secretion partner, we demonstrate a novel approach to efficiently secrete PTD-containing protein domains, overcoming previous limitations, and allowing for potent paracrine effects.
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Affiliation(s)
- Apostolos Koutsokeras
- 2Bone and Joint Research Unit, Queen Mary University of London, Barts and The London School of Medicine and Dentistry, William Harvey Research Institute, Charterhouse Square, London EC1M 6BQ, UK.
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13
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Qin Y, Cao X, Yang Y, Shi GP. Cysteine protease cathepsins and matrix metalloproteinases in the development of abdominal aortic aneurysms. Future Cardiol 2013; 9:89-103. [PMID: 23259477 DOI: 10.2217/fca.12.71] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Both cysteine protease cathepsins and matrix metalloproteinases are implicated in the pathogenesis of abdominal aortic aneurysms (AAAs) in humans and animals. Blood and aortic tissues from humans or animals with AAAs contain much higher levels of these proteases, and often lower levels of their endogenous inhibitors, than do blood and aortic tissues from healthy subjects. Protease- and protease inhibitor-deficient mice and synthetic protease inhibitors have affirmed that cysteinyl cathepsins and matrix metalloproteinases both participate directly in AAA development in several experimental model systems. Here, we summarize our current understanding of how proteases contribute to the pathogenesis of AAA, and discuss whether proteases or their inhibitors may serve as diagnostic biomarkers or potential therapeutic targets for this common human arterial disease.
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Affiliation(s)
- Yanwen Qin
- The Key Laboratory of Remodeling-Related Cardiovascular Diseases, Beijing An Zhen Hospital, Capital Medical University, Ministry of Education, Beijing Institute of Heart, Lung & Blood Vessel Diseases, Beijing 100029, China
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Characterization of TAMRA- and biotin-conjugated peptide arrays for on-chip matrix metalloproteinase activity assay. BIOCHIP JOURNAL 2012. [DOI: 10.1007/s13206-012-6401-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Increased disulphide dimer formation of latent associated peptide fusions of TGF-β by addition of l-cystine. J Biotechnol 2012; 161:269-77. [DOI: 10.1016/j.jbiotec.2012.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2012] [Revised: 07/03/2012] [Accepted: 07/06/2012] [Indexed: 02/06/2023]
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Abstract
Matrix metalloproteinases (MMPs) were originally identified as matrixin proteases that act in the extracellular matrix. Recent works have uncovered nontraditional roles for MMPs in the extracellular space as well as in the cytosol and nucleus. There is strong evidence that subspecialized and compartmentalized matrixins participate in many physiological and pathological cellular processes, in which they can act as both degradative and regulatory proteases. In this review, we discuss the transcriptional and translational control of matrixin expression, their regulation of intracellular sorting, and the structural basis of activation and inhibition. In particular, we highlight the emerging roles of various matrixin forms in diseases. The activity of matrix metalloproteinases is regulated at several levels, including enzyme activation, inhibition, complex formation and compartmentalization. Most MMPs are secreted and have their function in the extracellular environment. MMPs are also found inside cells, both in the nucleus, cytosol and organelles. The role of intracellular located MMPs is still poorly understood, although recent studies have unraveled some of their functions. The localization, activation and activity of MMPs are regulated by their interactions with other proteins, proteoglycan core proteins and / or their glycosaminoglycan chains, as well as other molecules. Complexes formed between MMPs and various molecules may also include interactions with noncatalytic sites. Such exosites are regions involved in substrate processing, localized outside the active site, and are potential binding sites of specific MMP inhibitors. Knowledge about regulation of MMP activity is essential for understanding various physiological processes and pathogenesis of diseases, as well as for the development of new MMP targeting drugs.
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Affiliation(s)
- Ferdinando Mannello
- Department of Biomolecular Sciences, Section of Clinical Biochemistry, Unit of Cell Biology, University Carlo Bo of Urbino, Via O. Ubaldini 7, 61029 Urbino (PU), Italy.
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Kong DH, Jung SH, Lee ST, Ha KS. On-chip assay of matrix metalloproteinase-3 activity using fluorescence-conjugated gelatin arrays. BIOCHIP JOURNAL 2010. [DOI: 10.1007/s13206-010-4308-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Enhanced proteolytic degradation of molecularly engineered PEG hydrogels in response to MMP-1 and MMP-2. Biomaterials 2010; 31:7836-45. [PMID: 20667588 DOI: 10.1016/j.biomaterials.2010.06.061] [Citation(s) in RCA: 394] [Impact Index Per Article: 28.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Accepted: 06/30/2010] [Indexed: 12/12/2022]
Abstract
Bioactive hydrogels formed by Michael-type addition reactions of end-functionalized poly(ethylene glycol) macromers with cysteine-containing peptides have been described as extracellular matrix mimetics and tissue engineering scaffolds. Although these materials have shown favorable behavior in vivo in tissue repair, we sought to develop materials formulations that would be more rapidly responsive to cell-induced enzymatic remodeling. In this study, protease-sensitive peptides that have increased k(cat) values were characterized and evaluated for their effects on gel degradability. Biochemical properties for soluble peptides and hydrogels were examined for matrix metalloproteinase (MMP)-1 and MMP-2. The most efficient peptide substrates in some cases overlap and in other cases differ between the two enzymes tested, and a range of k(cat) values was obtained. For each enzyme, hydrogels formed using the peptides with higher k(cat) values degraded faster than a reference with lower k(cat). Fibroblasts showed increased cell spreading and proliferation when cultured in 3D hydrogels with faster degrading peptides, and more cell invasion from aortic ring segments embedded in the hydrogels was observed. These faster degrading gels should provide matrices that are easier for cells to remodel and lead to increased cellular infiltration and potentially more robust healing in vivo.
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Jung SH, Kong DH, Park JH, Lee ST, Hyun J, Kim YM, Ha KS. Rapid analysis of matrix metalloproteinase-3 activity by gelatin arrays using a spectral surface plasmon resonance biosensor. Analyst 2010; 135:1050-7. [DOI: 10.1039/b919857a] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Uebersax L, Merkle HP, Meinel L. Biopolymer-Based Growth Factor Delivery for Tissue Repair: From Natural Concepts to Engineered Systems. TISSUE ENGINEERING PART B-REVIEWS 2009; 15:263-89. [DOI: 10.1089/ten.teb.2008.0668] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Lorenz Uebersax
- ETH Zurich, Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Zurich, Switzerland
| | - Hans P. Merkle
- ETH Zurich, Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Zurich, Switzerland
| | - Lorenz Meinel
- ETH Zurich, Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Zurich, Switzerland
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Dreesmann L, Hajosch R, Ahlers M, Nuernberger JV, Schlosshauer B. Permeability testing of biomaterial membranes. Biomed Mater 2008; 3:034119. [PMID: 18708701 DOI: 10.1088/1748-6041/3/3/034119] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The permeability characteristics of biomaterials are critical parameters for a variety of implants. To analyse the permeability of membranes made from crosslinked ultrathin gelatin membranes and the transmigration of cells across the membranes, we combined three technical approaches: (1) a two-chamber-based permeability assay, (2) cell culturing with cytochemical analysis and (3) biochemical enzyme electrophoresis (zymography). Based on the diffusion of a coloured marker molecule in conjunction with photometric quantification, permeability data for a gelatin membrane were determined in the presence or absence of gelatin degrading fibroblasts. Cytochemical evaluation after cryosectioning of the membranes was used to ascertain whether fibroblasts had infiltrated the membrane inside. Zymography was used to investigate the potential release of proteases from fibroblasts, which are known to degrade collagen derivatives such as gelatin. Our data show that the diffusion equilibrium of a low molecular weight dye across the selected gelatin membrane is approached after about 6-8 h. Fibroblasts increase the permeability due to cavity formation in the membrane inside without penetrating the membrane for an extended time period (>21 days in vitro). Zymography indicates that cavity formation is most likely due to the secretion of matrix metalloproteinases. In summary, the combination of the depicted methods promises to facilitate a more rational development of biomaterials, because it provides a rapid means of determining permeability characteristics and bridges the gap between descriptive methodology and the mechanistic understanding of permeability alterations due to biological degradation.
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Affiliation(s)
- L Dreesmann
- NMI Natural and Medical Sciences Institute at the University Tübingen, Markwiesenstr 55, D-72770 Reutlingen, Germany
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Gould DJ, Chernajovsky Y. Novel delivery methods to achieve immunomodulation. Curr Opin Pharmacol 2007; 7:445-50. [PMID: 17611159 PMCID: PMC2679984 DOI: 10.1016/j.coph.2007.05.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2007] [Revised: 05/22/2007] [Accepted: 05/22/2007] [Indexed: 01/13/2023]
Abstract
Immunomodulation in infectious diseases, cancer, cardiovascular disease and autoimmunity can now be targeted by sophisticated protein design, altering cellular responses by increasing therapeutic cell numbers ex vivo and then reimplanting, or altering cell function by gene transfer of cells ex vivo. In the last year, vaccination has been applied to modulate responses to autoantigens, allergens, viral or cancer antigens. The application of these technologies has entered the clinical arena and is having a positive impact on the treatment and prevention of human diseases.
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Abstract
The successful use of biologicals in the treatment of rheumatoid arthritis, psoriatic arthritis and spondyloarthritis has had a major impact on the management of these conditions. The challenge in the development of gene therapy as an alternative to these current treatments is to demonstrate that such therapy is more advantageous for patients from the therapeutic and safety points of view. Also, it will need to be demonstrated that gene therapy for the arthritides is economically feasible and that patient populations worldwide will be able to access these treatments.
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Affiliation(s)
- Yuti Chernajovsky
- William Harvey Research Institute, Barts and The London, Queen Mary's School of Medicine and Dentistry, University of London, London, UK.
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