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Kim HW, Ko MK, Shin S, Park SH, Park JH, Kim SM, Lee MJ. Isoprinosine as a foot-and-mouth disease vaccine adjuvant elicits robust host defense against viral infection through immunomodulation. Front Cell Infect Microbiol 2024; 14:1331779. [PMID: 38510965 PMCID: PMC10951065 DOI: 10.3389/fcimb.2024.1331779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/22/2024] [Indexed: 03/22/2024] Open
Abstract
Background Commercial foot-and-mouth disease (FMD) vaccines have limitations, such as local side effects, periodic vaccinations, and weak host defenses. To overcome these limitations, we developed a novel FMD vaccine by combining an inactivated FMD viral antigen with the small molecule isoprinosine, which served as an adjuvant (immunomodulator). Method We evaluated the innate and adaptive immune responses elicited by the novel FMD vaccine involved both in vitro and in vivo using mice and pigs. Results We demonstrated isoprinosine-mediated early, mid-term, and long-term immunity through in vitro and in vivo studies and complete host defense against FMD virus (FMDV) infection through challenge experiments in mice and pigs. We also elucidated that isoprinosine induces innate and adaptive (cellular and humoral) immunity via promoting the expression of immunoregulatory gene such as pattern recognition receptors [PRRs; retinoic acid-inducible gene (RIG)-I and toll like receptor (TLR)9], transcription factors [T-box transcription factor (TBX)21, eomesodermin (EOMES), and nuclear factor kappa B (NF-kB)], cytokines [interleukin (IL)-12p40, IL-23p19, IL-23R, and IL-17A)], and immune cell core receptors [cluster of differentiation (CD)80, CD86, CD28, CD19, CD21, and CD81] in pigs. Conclusion These findings present an attractive strategy for constructing novel FMD vaccines and other difficult-to-control livestock virus vaccine formulations based on isoprinosine induced immunomodulatory functions.
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Affiliation(s)
| | | | | | | | | | | | - Min Ja Lee
- Center for Foot-and-Mouth Disease Vaccine Research, Animal and Plant Quarantine Agency, Gimcheon-si, Gyeongsangbuk-do, Republic of Korea
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Plasek J, Dodulik J, Gai P, Hrstkova B, Skrha J, Zlatohlavek L, Vlasakova R, Danko P, Ondracek P, Cubova E, Capek B, Kollarova M, Furst T, Vaclavik J. Mortality of hospitalized patients with COVID-19: Effects of treatment options (vitamin D, anticoagulation, isoprinosine, ivermectin) assessed by propensity score matching, retrospective analysis. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2024; 168:35-43. [PMID: 38050692 DOI: 10.5507/bp.2023.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 11/07/2023] [Indexed: 12/06/2023] Open
Abstract
INTRODUCTION SARS-CoV-2 respiratory infection is associated with significant morbidity and mortality, especially in hospitalized high-risk patients. We aimed to evaluate the effects of treatment options (vitamin D, anticoagulation, isoprinosine, ivermectin) on hospital mortality in non-vaccinated patients during the 2021 spring wave in the Czech Republic. METHODS Initially, 991 patients hospitalized in the period January 1, 2021, to March 31, 2021, with PCR-confirmed SARS-CoV-2 acute respiratory infection in two university and five rural hospitals were included in the study. After exclusion of patients with an unknown outcome, a total of 790 patients entered the final analysis. The effects of different treatments were assessed in this cohort by means of propensity score matching. RESULTS Of the 790 patients, 282 patients died in the hospital; 37.7% were male and 33.3% were female. Age, sex, state of the disease, pneumonia, therapy, and several comorbidities were matched to simulate a case-control study. For anticoagulation treatment, 233 cases (full-dose) vs. 233 controls (prophylactic dose) were matched. The difference in mortality was significant in 16 of the 50 runs. For the treatment with isoprinosine, ivermectin, and vitamin D, none of the 50 runs led to a significant difference in hospital mortality. CONCLUSION Prophylactic-dose anticoagulation treatment in our study was found to be beneficial in comparison with the full dose. Supplementation with vitamin D did not show any meaningful benefit in terms of lowering the hospital mortality. Neither ivermectin nor, isoprinosine was found to significantly decrease hospital mortality.
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Affiliation(s)
- Jiri Plasek
- Department of Internal Medicine and Cardiology, University Hospital Ostrava, Ostrava, Czech Republic
- Center for Research on Internal Medicine and Cardiovascular diseases, Faculty of Medicine, University of Ostrava, Czech Republic
| | - Jozef Dodulik
- Department of Internal Medicine and Cardiology, University Hospital Ostrava, Ostrava, Czech Republic
| | - Petr Gai
- Department of Pulmonary Medicine and Tuberculosis, University Hospital Ostrava, Ostrava, Czech Republic
| | - Barbora Hrstkova
- Clinic for Infectious diseases, University Hospital Ostrava, Ostrava, Czech Republic
| | - Jan Skrha
- 3rd Department of Internal Medicine, General University Hospital, Prague
| | - Lukas Zlatohlavek
- 3rd Department of Internal Medicine, General University Hospital, Prague
| | - Renata Vlasakova
- 3rd Department of Internal Medicine, General University Hospital, Prague
| | - Peter Danko
- Department of Internal Medicine, Havirov Regional Hospital, Havirov, Czech Republic
| | - Petr Ondracek
- Department of Internal Medicine, Bilovec Regional Hospital, Bilovec, Czech Republic
| | - Eva Cubova
- Department of Internal Medicine, Fifejdy Ostrava City Hospital, Ostrava, Czech Republic
| | - Bronislav Capek
- Department of Internal Medicine, Associated Medical Facilities, Krnov, Czech Republic
| | - Marie Kollarova
- Department of Internal Medicine, Trinec Regional Hospital, Trinec, Czech Republic
| | - Tomas Furst
- Department of Mathematical Analysis and Application of Mathematics, Faculty of Science, Palacky University Olomouc, Czech Republic
| | - Jan Vaclavik
- Department of Internal Medicine and Cardiology, University Hospital Ostrava, Ostrava, Czech Republic
- Center for Research on Internal Medicine and Cardiovascular diseases, Faculty of Medicine, University of Ostrava, Czech Republic
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Surov AO, Ramazanova AG, Voronin AP, Drozd KV, Churakov AV, Perlovich GL. Virtual Screening, Structural Analysis, and Formation Thermodynamics of Carbamazepine Cocrystals. Pharmaceutics 2023; 15:pharmaceutics15030836. [PMID: 36986697 PMCID: PMC10052035 DOI: 10.3390/pharmaceutics15030836] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
In this study, the existing set of carbamazepine (CBZ) cocrystals was extended through the successful combination of the drug with the positional isomers of acetamidobenzoic acid. The structural and energetic features of the CBZ cocrystals with 3- and 4-acetamidobenzoic acids were elucidated via single-crystal X-ray diffraction followed by QTAIMC analysis. The ability of three fundamentally different virtual screening methods to predict the correct cocrystallization outcome for CBZ was assessed based on the new experimental results obtained in this study and data available in the literature. It was found that the hydrogen bond propensity model performed the worst in distinguishing positive and negative results of CBZ cocrystallization experiments with 87 coformers, attaining an accuracy value lower than random guessing. The method that utilizes molecular electrostatic potential maps and the machine learning approach named CCGNet exhibited comparable results in terms of prediction metrics, albeit the latter resulted in superior specificity and overall accuracy while requiring no time-consuming DFT computations. In addition, formation thermodynamic parameters for the newly obtained CBZ cocrystals with 3- and 4-acetamidobenzoic acids were evaluated using temperature dependences of the cocrystallization Gibbs energy. The cocrystallization reactions between CBZ and the selected coformers were found to be enthalpy-driven, with entropy terms being statistically different from zero. The observed difference in dissolution behavior of the cocrystals in aqueous media was thought to be caused by variations in their thermodynamic stability.
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Affiliation(s)
- Artem O Surov
- G.A. Krestov Institute of Solution Chemistry RAS, 153045 Ivanovo, Russia
| | - Anna G Ramazanova
- G.A. Krestov Institute of Solution Chemistry RAS, 153045 Ivanovo, Russia
| | | | - Ksenia V Drozd
- G.A. Krestov Institute of Solution Chemistry RAS, 153045 Ivanovo, Russia
| | - Andrei V Churakov
- Institute of General and Inorganic Chemistry RAS, Leninsky Prosp. 31, 119991 Moscow, Russia
| | - German L Perlovich
- G.A. Krestov Institute of Solution Chemistry RAS, 153045 Ivanovo, Russia
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Kim IS, Jo EK. Inosine: A bioactive metabolite with multimodal actions in human diseases. Front Pharmacol 2022; 13:1043970. [PMID: 36467085 PMCID: PMC9708727 DOI: 10.3389/fphar.2022.1043970] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/02/2022] [Indexed: 08/04/2023] Open
Abstract
The nucleoside inosine is an essential metabolite for purine biosynthesis and degradation; it also acts as a bioactive molecule that regulates RNA editing, metabolic enzyme activity, and signaling pathways. As a result, inosine is emerging as a highly versatile bioactive compound and second messenger of signal transduction in cells with diverse functional abilities in different pathological states. Gut microbiota remodeling is closely associated with human disease pathogenesis and responses to dietary and medical supplementation. Recent studies have revealed a critical link between inosine and gut microbiota impacting anti-tumor, anti-inflammatory, and antimicrobial responses in a context-dependent manner. In this review, we summarize the latest progress in our understanding of the mechanistic function of inosine, to unravel its immunomodulatory actions in pathological settings such as cancer, infection, inflammation, and cardiovascular and neurological diseases. We also highlight the role of gut microbiota in connection with inosine metabolism in different pathophysiological conditions. A more thorough understanding of the mechanistic roles of inosine and how it regulates disease pathologies will pave the way for future development of therapeutic and preventive modalities for various human diseases.
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Affiliation(s)
- In Soo Kim
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon, South Korea
- Department of Microbiology, Chungnam National University College of Medicine, Daejeon, South Korea
- Infection Control Convergence Research Center, Chungnam National University College of Medicine, Daejeon, South Korea
| | - Eun-Kyoung Jo
- Department of Medical Science, Chungnam National University College of Medicine, Daejeon, South Korea
- Department of Microbiology, Chungnam National University College of Medicine, Daejeon, South Korea
- Infection Control Convergence Research Center, Chungnam National University College of Medicine, Daejeon, South Korea
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Kafedjiiski K. Effect of binder type on physical and in vitro properties of high dose inosine acedoben dimepranol tablets. PHARMACIA 2022. [DOI: 10.3897/pharmacia.69.e89410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The present work was conducted with the aim to formulate and evaluate the immediate release of 1000 mg tablets containing Inosine Acedoben Dimepranol (IAD). All the samples of the tablets containing 1000 mg IAD were prepared by conventional wet granulation method. Various type of binders like povidone, wheat starch, pregelatinized starch (starch 1500TM , Colorcon), microcrystalline cellulose and macrogol 6000 were used to prepare some series of tablets. Granules were evaluated for pre-compression parameters and tablets were evaluated for post- compression parameters. The composition batch № IAD1000 L04 was found to be the best for producing IAD 1000 mg tablets. The optimal lubricant system is glycerol dibehenate at a concentration of 2.94% plus magnesium stearate at a concentration of 0.46%. Optimized formulation was evaluated for in-vitro dissolution test. Stability studies were performed for the selected composition.
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