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<p>Tacrolimus (FK506) is a potent immunosuppressive agent widely employed to prevent allogeneic rejection in transplant recipients. However, its nephrotoxic effects pose significant limitations to long-term therapeutic use. To address this challenge, the present study aims to develop an innovative oral nano-delivery system designed to mitigate FK506-induced nephrotoxicity through the antioxidant properties of Apocynin (APO), clove oil (CO), and chitin oligosaccharide (CTOS). A nanostructured lipid carrier (NSLC) incorporating APO dissolved in CO and functionalized with CTOS was formulated using ultrasonic emulsification. Gelucire 43/01 and CO served as key lipid components in varying ratios. Physicochemical characterization of the developed NSLCs was conducted, assessing particle size (PS), polydispersity index (PDI), zeta potential (ZP), and encapsulation efficiency (EE%). The optimized formulation (F4) exhibited an EE% of 63.85 ± 1.98, PS of 123 ± 2.21&#xa0;nm, PDI of 0.17 ± 0.09, and ZP of − 28 ± 1.98, demonstrating a biphasic release profile and stability under refrigerated conditions for six months. In vivo nephroprotective efficacy was evaluated in FK506-induced acute kidney injury (AKI) rat models, where oral administration of APO-loaded NSLCs significantly improved renal function and alleviated nephrotoxicity, as evidenced by biochemical markers and histopathological analyses. These findings underscore the potential of APO-loaded NSLCs as a promising oral phytopharmaceutical strategy for mitigating FK506-associated nephrotoxicity and enhancing therapeutic outcomes in transplant patients. Further studies are warranted to optimize and expand clinical applications.</p>

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Innovative nanostructured lipid-particles of apocynin and clove oil tagged with Chitin oligosaccharide for amelioration of tacrolimus-induced nephrotoxicity

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月8日

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  • Amir Elsayed Maghrabia,
  • Mariza Fouad Boughdady,
  • Sherry Mohamed Khater,
  • Irhan Ibrahim Abu Hashim,
  • Mahasen Mohammed Meshali

摘要

Tacrolimus (FK506) is a potent immunosuppressive agent widely employed to prevent allogeneic rejection in transplant recipients. However, its nephrotoxic effects pose significant limitations to long-term therapeutic use. To address this challenge, the present study aims to develop an innovative oral nano-delivery system designed to mitigate FK506-induced nephrotoxicity through the antioxidant properties of Apocynin (APO), clove oil (CO), and chitin oligosaccharide (CTOS). A nanostructured lipid carrier (NSLC) incorporating APO dissolved in CO and functionalized with CTOS was formulated using ultrasonic emulsification. Gelucire 43/01 and CO served as key lipid components in varying ratios. Physicochemical characterization of the developed NSLCs was conducted, assessing particle size (PS), polydispersity index (PDI), zeta potential (ZP), and encapsulation efficiency (EE%). The optimized formulation (F4) exhibited an EE% of 63.85 ± 1.98, PS of 123 ± 2.21 nm, PDI of 0.17 ± 0.09, and ZP of − 28 ± 1.98, demonstrating a biphasic release profile and stability under refrigerated conditions for six months. In vivo nephroprotective efficacy was evaluated in FK506-induced acute kidney injury (AKI) rat models, where oral administration of APO-loaded NSLCs significantly improved renal function and alleviated nephrotoxicity, as evidenced by biochemical markers and histopathological analyses. These findings underscore the potential of APO-loaded NSLCs as a promising oral phytopharmaceutical strategy for mitigating FK506-associated nephrotoxicity and enhancing therapeutic outcomes in transplant patients. Further studies are warranted to optimize and expand clinical applications.