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Pashirova T, Shaihutdinova Z, Tatarinov D, Mansurova M, Kazakova R, Bogdanov A, Chabrière E, Jacquet P, Daudé D, Akhunzianov AA, Miftakhova RR, Masson P. Tuning the Envelope Structure of Enzyme Nanoreactors for In Vivo Detoxification of Organophosphates. Int J Mol Sci 2023; 24:15756. [PMID: 37958742 PMCID: PMC10649860 DOI: 10.3390/ijms242115756] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
Encapsulated phosphotriesterase nanoreactors show their efficacy in the prophylaxis and post-exposure treatment of poisoning by paraoxon. A new enzyme nanoreactor (E-nRs) containing an evolved multiple mutant (L72C/Y97F/Y99F/W263V/I280T) of Saccharolobus solfataricus phosphotriesterase (PTE) for in vivo detoxification of organophosphorous compounds (OP) was made. A comparison of nanoreactors made of three- and di-block copolymers was carried out. Two types of morphology nanoreactors made of di-block copolymers were prepared and characterized as spherical micelles and polymersomes with sizes of 40 nm and 100 nm, respectively. The polymer concentrations were varied from 0.1 to 0.5% (w/w) and enzyme concentrations were varied from 2.5 to 12.5 μM. In vivo experiments using E-nRs of diameter 106 nm, polydispersity 0.17, zeta-potential -8.3 mV, and loading capacity 15% showed that the detoxification efficacy against paraoxon was improved: the LD50 shift was 23.7xLD50 for prophylaxis and 8xLD50 for post-exposure treatment without behavioral alteration or functional physiological changes up to one month after injection. The pharmacokinetic profiles of i.v.-injected E-nRs made of three- and di-block copolymers were similar to the profiles of the injected free enzyme, suggesting partial enzyme encapsulation. Indeed, ELISA and Western blot analyses showed that animals developed an immune response against the enzyme. However, animals that received several injections did not develop iatrogenic symptoms.
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Affiliation(s)
- Tatiana Pashirova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Str., 8, 420088 Kazan, Russia; (Z.S.); (D.T.); (A.B.)
| | - Zukhra Shaihutdinova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Str., 8, 420088 Kazan, Russia; (Z.S.); (D.T.); (A.B.)
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (M.M.); (R.K.); (A.A.A.); (R.R.M.)
| | - Dmitry Tatarinov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Str., 8, 420088 Kazan, Russia; (Z.S.); (D.T.); (A.B.)
| | - Milana Mansurova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (M.M.); (R.K.); (A.A.A.); (R.R.M.)
| | - Renata Kazakova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (M.M.); (R.K.); (A.A.A.); (R.R.M.)
| | - Andrei Bogdanov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov Str., 8, 420088 Kazan, Russia; (Z.S.); (D.T.); (A.B.)
| | - Eric Chabrière
- Gene&GreenTK, 19–21 Boulevard Jean Moulin, 13005 Marseille, France; (E.C.); (P.J.); (D.D.)
- IRD, APHM, MEPHI, IHU-Méditerranée Infection, Aix Marseille Université, 19–21 Boulevard Jean Moulin, 13005 Marseille, France
| | - Pauline Jacquet
- Gene&GreenTK, 19–21 Boulevard Jean Moulin, 13005 Marseille, France; (E.C.); (P.J.); (D.D.)
| | - David Daudé
- Gene&GreenTK, 19–21 Boulevard Jean Moulin, 13005 Marseille, France; (E.C.); (P.J.); (D.D.)
| | - Almaz A. Akhunzianov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (M.M.); (R.K.); (A.A.A.); (R.R.M.)
| | - Regina R. Miftakhova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (M.M.); (R.K.); (A.A.A.); (R.R.M.)
| | - Patrick Masson
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (M.M.); (R.K.); (A.A.A.); (R.R.M.)
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