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Volumn 16, Issue 3, 2015, Pages 962-972

Enzymatic Biodegradation of Hydrogels for Protein Delivery Targeted to the Small Intestine

Author keywords

[No Author keywords available]

Indexed keywords

BIODEGRADATION; CATALYSIS; CELL CULTURE; CROSSLINKING; CYTOTOXICITY; DEGRADATION; ENZYMES; GELS; PEPTIDES; PROTEINS;

EID: 84924402062     PISSN: 15257797     EISSN: 15264602     Source Type: Journal    
DOI: 10.1021/bm501871a     Document Type: Article
Times cited : (80)

References (63)
  • 1
    • 33745135423 scopus 로고    scopus 로고
    • Hydrogels in biology and medicine: From molecular principles to bionanotechnology
    • Peppas, N. A.; Hilt, J. Z.; Khademhosseini, A.; Langer, R. Hydrogels in biology and medicine: from molecular principles to bionanotechnology Adv. Mater. 2006, 18, 1345-1360
    • (2006) Adv. Mater. , vol.18 , pp. 1345-1360
    • Peppas, N.A.1    Hilt, J.Z.2    Khademhosseini, A.3    Langer, R.4
  • 2
    • 84971761901 scopus 로고
    • Environmentally sensitive polymers and hydrogels
    • Hoffman, A. S. Environmentally sensitive polymers and hydrogels MRS Bull. 1991, 16, 42-46
    • (1991) MRS Bull. , vol.16 , pp. 42-46
    • Hoffman, A.S.1
  • 3
    • 0035981078 scopus 로고    scopus 로고
    • Envinronment-sensitive hydrogels for drug delivery
    • Qiu, Y.; Park, K. Envinronment-sensitive hydrogels for drug delivery Adv. Drug Delivery Rev. 2001, 53, 321-339
    • (2001) Adv. Drug Delivery Rev. , vol.53 , pp. 321-339
    • Qiu, Y.1    Park, K.2
  • 4
    • 71549141624 scopus 로고    scopus 로고
    • Micro- and nanotechnologies for intelligent and responsive biomaterial-based medical systems
    • Caldorera-Moore, M.; Peppas, N. A. Micro- and nanotechnologies for intelligent and responsive biomaterial-based medical systems Adv. Drug Delivery Rev. 2009, 61, 1391-1401
    • (2009) Adv. Drug Delivery Rev. , vol.61 , pp. 1391-1401
    • Caldorera-Moore, M.1    Peppas, N.A.2
  • 7
    • 84875483914 scopus 로고    scopus 로고
    • Extracellular delivery of modified oligonucleotide and superparamagnetic iron oxide nanoparticles from a degradable hydrogel triggered by tumor acidosis
    • Lin, C.-W.; Tseng, S. J.; Kempson, I. M.; Yang, S.-C.; Hong, T.-M.; Yang, P.-C. Extracellular delivery of modified oligonucleotide and superparamagnetic iron oxide nanoparticles from a degradable hydrogel triggered by tumor acidosis Biomaterials 2013, 34, 4387-4393
    • (2013) Biomaterials , vol.34 , pp. 4387-4393
    • Lin, C.-W.1    Tseng, S.J.2    Kempson, I.M.3    Yang, S.-C.4    Hong, T.-M.5    Yang, P.-C.6
  • 8
    • 84856621061 scopus 로고    scopus 로고
    • Expert opinion: Responsive polymer nanoparticles in cancer therapy
    • Liechty, W. B.; Peppas, N. A. Expert opinion: Responsive polymer nanoparticles in cancer therapy Eur. J. Pharm. Biopharm. 2012, 80, 241-246
    • (2012) Eur. J. Pharm. Biopharm. , vol.80 , pp. 241-246
    • Liechty, W.B.1    Peppas, N.A.2
  • 9
    • 84892603910 scopus 로고    scopus 로고
    • Synthetically designed peptide-based biomaterials with stimuli-responsive and membrane-active properties for biomedical applications
    • Wong, S.; Shim, M. S.; Kwon, Y. J. Synthetically designed peptide-based biomaterials with stimuli-responsive and membrane-active properties for biomedical applications J. Mater. Chem. B 2014, 2, 595
    • (2014) J. Mater. Chem. B , vol.2 , pp. 595
    • Wong, S.1    Shim, M.S.2    Kwon, Y.J.3
  • 10
    • 84906318847 scopus 로고    scopus 로고
    • Polymeric nanocarriers for siRNA delivery to murine macrophages
    • Forbes, D. C.; Peppas, N. A. Polymeric nanocarriers for siRNA delivery to murine macrophages Macromol. Biosci. 2014, 14, 1096-1105
    • (2014) Macromol. Biosci. , vol.14 , pp. 1096-1105
    • Forbes, D.C.1    Peppas, N.A.2
  • 12
    • 84884416974 scopus 로고    scopus 로고
    • Engineering synthetic hydrogel microenvironments to instruct stem cells
    • Guvendiren, M.; Burdick, J. A. Engineering synthetic hydrogel microenvironments to instruct stem cells Curr. Opin Biotechnol. 2013, 24, 841-846
    • (2013) Curr. Opin Biotechnol. , vol.24 , pp. 841-846
    • Guvendiren, M.1    Burdick, J.A.2
  • 13
    • 84872743043 scopus 로고    scopus 로고
    • Hydrogels in healthcare: From static to dynamic material microenvironments
    • Kirschner, C. M.; Anseth, K. S. Hydrogels in healthcare: from static to dynamic material microenvironments Acta Mater. 2013, 61, 931-944
    • (2013) Acta Mater. , vol.61 , pp. 931-944
    • Kirschner, C.M.1    Anseth, K.S.2
  • 14
    • 84923240330 scopus 로고    scopus 로고
    • Multi-responsive hydrogels for drug delivery and tissue engineering applications
    • Knipe, J. M.; Peppas, N. A. Multi-responsive hydrogels for drug delivery and tissue engineering applications Regener. Biomater. 2014, 1, 57-65
    • (2014) Regener. Biomater. , vol.1 , pp. 57-65
    • Knipe, J.M.1    Peppas, N.A.2
  • 17
    • 84870236064 scopus 로고    scopus 로고
    • Responsive polymeric delivery systems
    • Kost, J.; Langer, R. Responsive polymeric delivery systems Adv. Drug Delivery Rev. 2012, 64, 327-341
    • (2012) Adv. Drug Delivery Rev. , vol.64 , pp. 327-341
    • Kost, J.1    Langer, R.2
  • 18
    • 0036377191 scopus 로고    scopus 로고
    • Preparation and characterization of P(MAA-g-EG) nanospheres for protein delivery applications
    • Torres-Lugo, M.; Peppas, N. A. Preparation and characterization of P(MAA-g-EG) nanospheres for protein delivery applications J. Nanopart. Res. 2002, 4, 73-81
    • (2002) J. Nanopart. Res. , vol.4 , pp. 73-81
    • Torres-Lugo, M.1    Peppas, N.A.2
  • 19
    • 0032595912 scopus 로고    scopus 로고
    • Molecular design and in vitro studies of novel pH-sensitive hydrogels for the oral delivery of calcitonin
    • Torres-Lugo, M.; Peppas, N. A. Molecular design and in vitro studies of novel pH-sensitive hydrogels for the oral delivery of calcitonin Macromolecules 1999, 32, 6646-6651
    • (1999) Macromolecules , vol.32 , pp. 6646-6651
    • Torres-Lugo, M.1    Peppas, N.A.2
  • 20
    • 84892602197 scopus 로고    scopus 로고
    • Multiresponsive polyanionic microgels with inverse pH responsive behavior by encapsulation of polycationic nanogels
    • Knipe, J. M.; Chen, F.; Peppas, N. A. Multiresponsive polyanionic microgels with inverse pH responsive behavior by encapsulation of polycationic nanogels J. Appl. Polym. Sci. 2014, 131, 40098
    • (2014) J. Appl. Polym. Sci. , vol.131 , pp. 40098
    • Knipe, J.M.1    Chen, F.2    Peppas, N.A.3
  • 22
    • 75149193369 scopus 로고    scopus 로고
    • Assessment of poly(methacrylic acid-co-N-vinyl pyrrolidone) as a carrier for the oral delivery of therapeutic proteins using Caco-2 and HT29-MTX cell lines
    • Carr, D. A.; Peppas, N. A. Assessment of poly(methacrylic acid-co-N-vinyl pyrrolidone) as a carrier for the oral delivery of therapeutic proteins using Caco-2 and HT29-MTX cell lines J. Biomed. Mater. Res., Part A 2009, 92, 504-512
    • (2009) J. Biomed. Mater. Res., Part A , vol.92 , pp. 504-512
    • Carr, D.A.1    Peppas, N.A.2
  • 23
    • 78649627455 scopus 로고    scopus 로고
    • Complexation hydrogels for the oral delivery of growth hormone and salmon calcitonin
    • Carr, D. A.; Gomez-Burgaz, M.; Boudes, M. C.; Peppas, N. A. Complexation hydrogels for the oral delivery of growth hormone and salmon calcitonin Ind. Eng. Chem. Res. 2010, 49, 11991-11995
    • (2010) Ind. Eng. Chem. Res. , vol.49 , pp. 11991-11995
    • Carr, D.A.1    Gomez-Burgaz, M.2    Boudes, M.C.3    Peppas, N.A.4
  • 24
    • 84866900814 scopus 로고    scopus 로고
    • Enzyme-responsive polymeric assemblies, nanoparticles and hydrogels
    • Hu, J.; Zhang, G.; Liu, S. Enzyme-responsive polymeric assemblies, nanoparticles and hydrogels Chem. Soc. Rev. 2012, 41, 5933
    • (2012) Chem. Soc. Rev. , vol.41 , pp. 5933
    • Hu, J.1    Zhang, G.2    Liu, S.3
  • 26
    • 71649112739 scopus 로고    scopus 로고
    • Effect of polymer chemistry and fabrication method on protein release and stability from polyanhydride microspheres
    • Lopac, S. K.; Torres, M. P.; Wilson-Welder, J. H.; Wannemuehler, M. J.; Narasimhan, B. Effect of polymer chemistry and fabrication method on protein release and stability from polyanhydride microspheres J. Biomed Mater. Res., Part B 2009, 91, 938-947
    • (2009) J. Biomed Mater. Res., Part B , vol.91 , pp. 938-947
    • Lopac, S.K.1    Torres, M.P.2    Wilson-Welder, J.H.3    Wannemuehler, M.J.4    Narasimhan, B.5
  • 27
    • 0022059010 scopus 로고
    • A simultaneous transport-reaction model for controlled drug delivery from catalyzed bioerodible polymer matrices
    • Thombre, A. G.; Himmelstein, K. J. A simultaneous transport-reaction model for controlled drug delivery from catalyzed bioerodible polymer matrices AIChE J. 1985, 31, 159-766
    • (1985) AIChE J. , vol.31 , pp. 159-766
    • Thombre, A.G.1    Himmelstein, K.J.2
  • 28
    • 54949134803 scopus 로고    scopus 로고
    • Modeling of drug release from biodegradable polymer blends
    • Lao, L. L.; Venkatraman, S. S.; Peppas, N. A. Modeling of drug release from biodegradable polymer blends Eur. J. Pharm. Biopharm. 2008, 70, 796-803
    • (2008) Eur. J. Pharm. Biopharm. , vol.70 , pp. 796-803
    • Lao, L.L.1    Venkatraman, S.S.2    Peppas, N.A.3
  • 29
    • 84870238185 scopus 로고    scopus 로고
    • Biodegradation and biocompatibility of PLA and PLGA microspheres
    • Anderson, J. M.; Shive, M. S. Biodegradation and biocompatibility of PLA and PLGA microspheres Adv. Drug Delivery Rev. 2012, 64, 72-82
    • (2012) Adv. Drug Delivery Rev. , vol.64 , pp. 72-82
    • Anderson, J.M.1    Shive, M.S.2
  • 30
    • 38349144057 scopus 로고    scopus 로고
    • Nanoimprint lithography based fabrication of shape-specific, enzymatically-triggered smart nanoparticles
    • Glangchai, L. C.; Caldorera-Moore, M.; Shi, L.; Roy, K. Nanoimprint lithography based fabrication of shape-specific, enzymatically-triggered smart nanoparticles J. Controlled Release 2008, 125, 263-272
    • (2008) J. Controlled Release , vol.125 , pp. 263-272
    • Glangchai, L.C.1    Caldorera-Moore, M.2    Shi, L.3    Roy, K.4
  • 31
    • 84862549614 scopus 로고    scopus 로고
    • Cholinesterase-responsive supramolecular vesicle
    • Guo, D.-S.; Wang, K.; Wang, Y.-X.; Liu, Y. Cholinesterase-responsive supramolecular vesicle J. Am. Chem. Soc. 2012, 134, 10244-10250
    • (2012) J. Am. Chem. Soc. , vol.134 , pp. 10244-10250
    • Guo, D.-S.1    Wang, K.2    Wang, Y.-X.3    Liu, Y.4
  • 32
    • 0019949646 scopus 로고
    • Polymers containing enzymatically degradable bonds. VI. Hydrophilic gels cleavable by chymotrypsin
    • Ulbrich, K.; Strohalm, J.; Kopecek, J. Polymers containing enzymatically degradable bonds. VI. Hydrophilic gels cleavable by chymotrypsin Biomaterials 1982, 3, 150-154
    • (1982) Biomaterials , vol.3 , pp. 150-154
    • Ulbrich, K.1    Strohalm, J.2    Kopecek, J.3
  • 33
    • 84947149186 scopus 로고
    • Release of macromolecules from hydrophlilic gels containing enzymatically degradable bonds
    • Subr, V.; Duncan, R.; Kopecek, J. Release of macromolecules from hydrophlilic gels containing enzymatically degradable bonds J. Biomater. Sci., Polym. Ed. 1990, 1, 261-278
    • (1990) J. Biomater. Sci., Polym. Ed. , vol.1 , pp. 261-278
    • Subr, V.1    Duncan, R.2    Kopecek, J.3
  • 35
    • 84865309834 scopus 로고    scopus 로고
    • Nano-inside-micro: Disease-responsive microgels with encapsulated nanoparticles for intracellular drug delivery to the deep lung
    • Wanakule, P.; Liu, G. W.; Fleury, A. T.; Roy, K. Nano-inside-micro: disease-responsive microgels with encapsulated nanoparticles for intracellular drug delivery to the deep lung J. Controlled Release 2012, 162, 429-437
    • (2012) J. Controlled Release , vol.162 , pp. 429-437
    • Wanakule, P.1    Liu, G.W.2    Fleury, A.T.3    Roy, K.4
  • 36
    • 34250644628 scopus 로고    scopus 로고
    • Enzyme-responsive polymer hydrogel particles for controlled release
    • Thornton, P. D.; Mart, R. J.; Ulijn, R. V. Enzyme-responsive polymer hydrogel particles for controlled release Adv. Mater. 2007, 19, 1252-1256
    • (2007) Adv. Mater. , vol.19 , pp. 1252-1256
    • Thornton, P.D.1    Mart, R.J.2    Ulijn, R.V.3
  • 39
    • 84857073363 scopus 로고    scopus 로고
    • Enzymatic- and light-degradable hybrid nanogels: Crosslinking of polyacrylamide with acrylate-functionalized dextrans containing photocleavable linkers
    • Klinger, D.; Landfester, K. Enzymatic- and light-degradable hybrid nanogels: crosslinking of polyacrylamide with acrylate-functionalized dextrans containing photocleavable linkers J. Polym. Sci., Part A: Polym. Chem. 2012, 50, 1062-1075
    • (2012) J. Polym. Sci., Part A: Polym. Chem. , vol.50 , pp. 1062-1075
    • Klinger, D.1    Landfester, K.2
  • 43
    • 0031213203 scopus 로고    scopus 로고
    • Analysis of the complexation/decomplexation phenomena in graft copolymer networks
    • Lowman, A. M.; Peppas, N. A. Analysis of the complexation/decomplexation phenomena in graft copolymer networks Macromolecules 1997, 30, 4959-4965
    • (1997) Macromolecules , vol.30 , pp. 4959-4965
    • Lowman, A.M.1    Peppas, N.A.2
  • 46
    • 33748369127 scopus 로고    scopus 로고
    • Solid-state IR-LD spectroscopic and theoretical analysis of arginine-containing peptides
    • Kolev, T. Solid-state IR-LD spectroscopic and theoretical analysis of arginine-containing peptides Biopolymers 2006, 83, 39-45
    • (2006) Biopolymers , vol.83 , pp. 39-45
    • Kolev, T.1
  • 47
    • 3042815334 scopus 로고    scopus 로고
    • Trypsin cleaves exclusively C-terminal to arginine and lysine residues
    • Olsen, J. V. Trypsin cleaves exclusively C-terminal to arginine and lysine residues Mol. Cell. Proteomics 2004, 3, 608-614
    • (2004) Mol. Cell. Proteomics , vol.3 , pp. 608-614
    • Olsen, J.V.1
  • 48
    • 37549029211 scopus 로고    scopus 로고
    • Synthesis of well-defined cyclic poly(N-isopropylacrylamide) via click chemistry and its unique thermal phase transition behavior
    • Xu, J.; Ye, J.; Liu, S. Synthesis of well-defined cyclic poly(N-isopropylacrylamide) via click chemistry and its unique thermal phase transition behavior Macromolecules 2007, 40, 9103-9110
    • (2007) Macromolecules , vol.40 , pp. 9103-9110
    • Xu, J.1    Ye, J.2    Liu, S.3
  • 49
    • 35348865540 scopus 로고    scopus 로고
    • Temperature-induced phase transition of well-defined cyclic poly(N-isopropylacrylamide)s in aqueous solution
    • Qiu, X.-P.; Tanaka, F.; Winnik, F. M. Temperature-induced phase transition of well-defined cyclic poly(N-isopropylacrylamide)s in aqueous solution Macromolecules 2007, 40, 7069-7071
    • (2007) Macromolecules , vol.40 , pp. 7069-7071
    • Qiu, X.-P.1    Tanaka, F.2    Winnik, F.M.3
  • 50
    • 79951478825 scopus 로고    scopus 로고
    • Photo-sensitive PMMA microgels: Light-triggered swelling and degradation
    • Klinger, D.; Landfester, K. Photo-sensitive PMMA microgels: light-triggered swelling and degradation Soft Matter 2011, 7, 1426-1440
    • (2011) Soft Matter , vol.7 , pp. 1426-1440
    • Klinger, D.1    Landfester, K.2
  • 51
    • 31544440154 scopus 로고    scopus 로고
    • Influence of Mie scattering on nanoparticles with different particle sizes and shapes: Photometry and analytical ultracentrifugation with absorption optics
    • Lechner, M. D. Influence of Mie scattering on nanoparticles with different particle sizes and shapes: photometry and analytical ultracentrifugation with absorption optics J. Serb. Chem. Soc. 2005, 70, 361-369
    • (2005) J. Serb. Chem. Soc. , vol.70 , pp. 361-369
    • Lechner, M.D.1
  • 52
    • 78650170786 scopus 로고    scopus 로고
    • Modeling of small-molecule release from crosslinked hydrogel microspheres: Effect of crosslinking and enzymatic degradation of hydrogel matrix
    • Cheng, F.; Choy, Y. B.; Choi, H.; Kim, K. Modeling of small-molecule release from crosslinked hydrogel microspheres: effect of crosslinking and enzymatic degradation of hydrogel matrix Int. J. Pharm. 2011, 403, 90-95
    • (2011) Int. J. Pharm. , vol.403 , pp. 90-95
    • Cheng, F.1    Choy, Y.B.2    Choi, H.3    Kim, K.4
  • 53
    • 84906788497 scopus 로고    scopus 로고
    • Mathematical models in drug delivery: How modeling has shaped the way we design new drug delivery systems
    • Peppas, N. A.; Narasimhan, B. Mathematical models in drug delivery: how modeling has shaped the way we design new drug delivery systems J. Controlled Release 2014, 190, 75-81
    • (2014) J. Controlled Release , vol.190 , pp. 75-81
    • Peppas, N.A.1    Narasimhan, B.2
  • 54
    • 0026099056 scopus 로고
    • Dynamics of controlled release from bioerodible matrices
    • Joshi, A.; Himmelstein, K. J. Dynamics of controlled release from bioerodible matrices J. Controlled Release 1991, 15, 95-104
    • (1991) J. Controlled Release , vol.15 , pp. 95-104
    • Joshi, A.1    Himmelstein, K.J.2
  • 55
    • 33745622879 scopus 로고    scopus 로고
    • Exogenously triggered, enzymatic degradation of photopolymerized hydrogels with polycaprolactone subunits: Experimental observation and modeling of mass loss behavior
    • Rice, M. A.; Sanchez-Adams, J.; Anseth, K. S. Exogenously triggered, enzymatic degradation of photopolymerized hydrogels with polycaprolactone subunits: experimental observation and modeling of mass loss behavior Biomacromolecules 2006, 7, 1968-1975
    • (2006) Biomacromolecules , vol.7 , pp. 1968-1975
    • Rice, M.A.1    Sanchez-Adams, J.2    Anseth, K.S.3
  • 56
    • 0022538998 scopus 로고
    • Transit of pharmaceutical dosage forms through the small intestine
    • Davis, S. S.; Hardy, J. G.; Fara, J. W. Transit of pharmaceutical dosage forms through the small intestine Gut 1986, 27, 886-892
    • (1986) Gut , vol.27 , pp. 886-892
    • Davis, S.S.1    Hardy, J.G.2    Fara, J.W.3
  • 57
    • 1542652441 scopus 로고
    • A spectrophotometric determination of trypsin and chymotrypsin
    • Schwert, G. W.; Takenaka, Y. A spectrophotometric determination of trypsin and chymotrypsin Biochim. Biophys. Acta 1955, 16, 570-575
    • (1955) Biochim. Biophys. Acta , vol.16 , pp. 570-575
    • Schwert, G.W.1    Takenaka, Y.2
  • 58
    • 84924410532 scopus 로고
    • LXVIII. The inactivation of trypsin by heat
    • Pace, J. LXVIII. The inactivation of trypsin by heat Biochem. J. 1930, 24, i3
    • (1930) Biochem. J. , vol.24 , pp. i3
    • Pace, J.1
  • 59
    • 0016175849 scopus 로고
    • Proteases as mitogens: The effect of trypsin and pronase on mouse and human lymphocytes
    • Kaplan, J. G.; Bona, C. Proteases as mitogens: the effect of trypsin and pronase on mouse and human lymphocytes Exp. Cell Res. 1974, 88, 388-394
    • (1974) Exp. Cell Res. , vol.88 , pp. 388-394
    • Kaplan, J.G.1    Bona, C.2
  • 60
    • 0021550018 scopus 로고
    • Antigen-presenting function of the macrophage
    • Unanue, E. R. Antigen-presenting function of the macrophage Annu. Rev. Immunol. 1984, 2, 395-428
    • (1984) Annu. Rev. Immunol. , vol.2 , pp. 395-428
    • Unanue, E.R.1
  • 61
    • 33645974002 scopus 로고    scopus 로고
    • Novel delivery system based on complexation hydrogels as delivery vehicles for insulin-transferrin conjugates
    • Kavimandan, N.; Losi, E.; Peppas, N. Novel delivery system based on complexation hydrogels as delivery vehicles for insulin-transferrin conjugates Biomaterials 2006, 27, 3846-3854
    • (2006) Biomaterials , vol.27 , pp. 3846-3854
    • Kavimandan, N.1    Losi, E.2    Peppas, N.3
  • 62
    • 33750177969 scopus 로고    scopus 로고
    • Nanoscale analysis of protein and peptide absorption: Insulin absorption using complexation and pH-sensitive hydrogels as delivery vehicles
    • Peppas, N. A.; Kavimandan, N. J. Nanoscale analysis of protein and peptide absorption: insulin absorption using complexation and pH-sensitive hydrogels as delivery vehicles Eur. J. Pharm. Sci. 2006, 29, 183-197
    • (2006) Eur. J. Pharm. Sci. , vol.29 , pp. 183-197
    • Peppas, N.A.1    Kavimandan, N.J.2
  • 63
    • 1542509571 scopus 로고    scopus 로고
    • Oral insulin delivery using P(MAA-g-EG) hydrogels: Effects of network morphology on insulin delivery characteristics
    • Nakamura, K.; Murray, R. J.; Joseph, J. I.; Peppas, N. A.; Morishita, M.; Lowman, A. M. Oral insulin delivery using P(MAA-g-EG) hydrogels: effects of network morphology on insulin delivery characteristics J. Controlled Release 2004, 95, 589-599
    • (2004) J. Controlled Release , vol.95 , pp. 589-599
    • Nakamura, K.1    Murray, R.J.2    Joseph, J.I.3    Peppas, N.A.4    Morishita, M.5    Lowman, A.M.6


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