Abstract: PO1765
Glycol Chitosan-Based Tacrolimus-Loaded Nanomicelle Therapy Ameliorates Lupus Nephritis
Session Information
- Glomerular Diseases: Lupus and Membranous
October 22, 2020 | Location: On-Demand
Abstract Time: 10:00 AM - 12:00 PM
Category: Glomerular Diseases
- 1202 Glomerular Diseases: Immunology and Inflammation
Authors
- Kim, Chang Seong, Chonnam National University, Gwangju, Jeollanam-do, Korea (the Republic of)
- Oh, Tae ryom, Chonnam National University, Gwangju, Jeollanam-do, Korea (the Republic of)
- Choi, Hong sang, Chonnam National University, Gwangju, Jeollanam-do, Korea (the Republic of)
- Bae, Eun Hui, Chonnam National University, Gwangju, Jeollanam-do, Korea (the Republic of)
- Ma, Seong Kwon, Chonnam National University, Gwangju, Jeollanam-do, Korea (the Republic of)
- Kim, Soo Wan, Chonnam National University, Gwangju, Jeollanam-do, Korea (the Republic of)
Background
Hydrophobically modified glycol chitosan (HGC) nanomicelles loaded with tacrolimus (HGC-TAC) enhance the renal delivery of tacrolimus. Here, we determined whether the administration of HGC-TAC nanomicelles decreases kidney injury in a model of lupus nephritis.
Methods
Lupus-prone female MRL/lpr mice were randomly divided into 2 groups and given either intravenous vehicle or HGC-TAC (0.5 mg/kg tacrolimus) weekly for 8 weeks. Age-matched MRL/MpJ mice without Faslpr mutation were treated with a vehicle and used as healthy controls.
Results
Weekly treatment with intravenous HGC-TAC remarkably reduced genetically attributable lupus activity, blood urea nitrogen, and proteinuria in lupus nephritis-positive mice. In addition, HGC-TAC treatment mitigated renal dysfunction and histological injury, including glomerular proliferative lesions and tubulointerstitial infiltration. Furthermore, HGC-TAC treatment reduced renal inflammation and inflammatory gene expression, as well as ameliorated the increased glomerular fibrosis. Moreover, the administration of HGC-TAC appeared to regulate renal injury via the TGF-β1/p38MAPK/NF-κB signaling pathway.
Conclusion
Our study clearly indicates that weekly treatment with HGC-TAC nanomicelles reduces kidney injury resulting from lupus nephritis by preventing inflammation and fibrosis. This advantage of HGC-TAC nanocarriers may improve drug adherence and treatment efficacy in lupus nephritis patients.
Funding
- Government Support - Non-U.S.