Abstract
Cliv-92 is a mixture of three structurally similar coumarinolignoids and a proven hepatoprotective agent. Low aqueous solubility and poor bioavailability are notable hindrances for its further use. Therefore, glycyrrhetinic acid-linked chitosan nanoparticles loaded with Cliv-92 were prepared for active targeting to the liver. The nanoparticles were prepared by the ionic gelation method to avoid the use of toxic solvents/rigorous agitation. The method of preparation was optimized using a central composite design with independent variables, namely polymer: drug ratio (3:1, w/w), crosslinker concentration (0.5%), and stirring speed (750 rpm). The optimized nanoparticles had a mean particle size of 185.17 nm, a polydispersity index of 0.41, a zeta potential of 30.93 mV, and a drug loading of 16.30%. The prepared formulation showed sustained release of approximately 63% of loaded Cliv-92 over 72 h. The nanoparticles were freeze-dried for long-term storage and further characterized. The formulation was found to be biocompatible for parenteral delivery. In vivo imaging study showed that optimized nanoparticles were preferentially accumulated in the liver and successfully targeting the liver. The present study successfully demonstrated the improved pharmacokinetic properties (≈12% relative bioavailability) and efficacy profile (evidenced by in vivo and histopathological studies) of fabricated Cliv-92 nanoparticles.
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Abbreviations
- ALB:
-
Albumin
- ALP:
-
Alkaline phosphatase
- ALT:
-
Alanine aminotransferase
- AST:
-
Aspartate aminotransferase
- BIL:
-
Total bilirubin
- CAT:
-
Catalase
- CDCl3 :
-
Chloroform-d
- CH3COOD:
-
Acetic (acid-d)
- CNP:
-
Cliv-92 nanoparticles
- CPCSEA:
-
Committee for the Purpose of Control and Supervision of Experiments on Animals
- CTS:
-
Chitosan
- DPX:
-
Dibutylphthalate polystyrene xylene
- DSC:
-
Differential scanning calorimetry
- EDC·HCl:
-
N-(3-Dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride
- FTIR:
-
Fourier transform infrared
- GA:
-
Glycyrrhetinic acid
- GA-CTS complex:
-
Glycyrrhetinic acid-modified chitosan
- GPx:
-
Glutathione peroxidase
- GR:
-
Glutathione reductase
- GSH:
-
Reduced glutathione
- GST:
-
Glutathione S-transferase
- H&E:
-
Hematoxylin and eosin
- ICG:
-
Indocyanine green
- ICMR:
-
Indian Council of Medical Research
- IL:
-
Interleukin
- KBr:
-
Potassium bromide
- LDH:
-
Lactate dehydrogenase
- NaCl:
-
Sodium chloride
- NaOH:
-
Sodium hydroxide
- NDDS:
-
Novel drug delivery systems
- NHS:
-
N-hydroxysuccinimide
- NMR:
-
Nuclear magnetic resonance
- PBS:
-
Phosphate-buffered saline
- RT:
-
Room temperature
- SOD:
-
Superoxide dismutase
- TNF-α :
-
Tumor necrosis factor-α
- TP:
-
Total proteins
- TPP:
-
Sodium tripolyphosphate
- UV–Vis:
-
Ultraviolet–visible
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Acknowledgements
KSY is thankful to the Indian Council of Medical Research, New Delhi, for awarding Senior Research Fellowship. The authors are grateful to the CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow for providing necessary facilities. The authors would like to acknowledge the support of the Malaviya National Institute of Technology, Jaipur for the TEM analysis, and the Indian Institute of Technology, Kanpur for the DSC analysis.
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Yadav, K.S., Srivastava, N., Rai, V.K. et al. Cliv-92-Loaded Glycyrrhetinic Acid-Modified Chitosan Nanoparticles for Enhanced Hepatoprotection–Preparation, Characterization, and In Vivo Evaluation. AAPS PharmSciTech 22, 259 (2021). https://doi.org/10.1208/s12249-021-02130-7
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DOI: https://doi.org/10.1208/s12249-021-02130-7