𝐼𝑛 𝑉𝑖𝑣𝑜 Toxicity and Prophylactic Treatment Efficacy of NR۴A۱ Agonist ۶-Mercaptopurine Loaded Nanostructured Lipid Carriers Protects Against Bleomycin Induced Mouse Pulmonary Fibrosis Mediators and Biomarkers
محل انتشار: مجله علوم دارویی و شیمی، دوره: 7، شماره: 10
سال انتشار: 1403
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 90
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شناسه ملی سند علمی:
JR_JMCH-7-10_014
تاریخ نمایه سازی: 19 دی 1403
چکیده مقاله:
Idiopathic pulmonary fibrosis (IPF) is a devastating and chronic age-related pulmonary disease with a poor prognosis and inadequate treatment choices. Nintedanib, a high-profile receptor tyrosine kinase inhibitor, is one of the only two listed drugs for treating IPF. Researchers have innovatively engineered a spectrum of nanocarriers for the oral administration of ۶-mercaptopurine, driven by progress in pioneering methods for delivering drugs. Of these myriad drug delivery modalities, nanostructured lipid carriers have emerged as a particularly promising vehicle for oral drug delivery, owing to their superior drug loading capacity, augmented bioavailability, and remarkable biocompatibility and biodegradability. Human nuclear receptor ۴A۱ (NR۴A۱) has been previously documented to modulate mesenchymal cell activity and attenuate fibrogenic signalling. To mitigate the pro-fibrotic effects of TGF-β, NR۴A۱ recruits a repressor complex that includes transcription factor SP۱, scaffold protein SIN۳A, CoREST, lysine-specific histone demethylase ۱ (LSD۱), and histone deacetylase ۱ (HDAC۱) to Transforming growth factor β target genes. Nur۷۷/NR۴A۱ agonists such as Cytosporone B and ۶-Mercaptopurine function as TGF-β pathway negative regulators during wound healing. It also implies that pathological circumstances disrupt this Nur۷۷-mediated negative feedback loop, which results in prolonged TGF-β signalling and increased fibrogenesis. The present study aimed to determine the toxic and prophylactic efficacy of a ۶-mercaptopurine-loaded nanostructured lipid carrier in BLM- induced pulmonary fibrosis in mice. For that, we investigated the toxicity profile as well as prophylactic efficacy of a ۶-mercaptopurine-loaded nanostructured lipid carrier (۶-MP-NLC) drug known to promote NR۴A۱ signalling and could diminish pulmonary fibrosis in the mice. At higher doses, ۶-MP-NLC and ۶-MP therapy significantly decreased the neutrophil BALF count, hydroxyproline levels, inflammatory-promoting cytokines (TNF-α, IL-۱β, IL-۶), histopathology endpoints such as inflammation and collagen levels, and immunohistochemistry parameters like COL۱A۱, α-SMA, and TGF-β. Research suggests that NR۴A۱ may help reduce fibrotic processes in lung fibrosis, potentially improving management of inflammation-related lung conditions.
کلیدواژه ها:
Acute toxicity ، Sub-acute Toxicity ، Nanoformulation ، Pulmonary fibrosis ، NR۴A۱ agonist ، ۶-mercaptopurine nanostructured lipid carriers ، Lung fibrosis biomarkers
نویسندگان
Pradeep Vattikundala
Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Tamil Nadu, India-۶۰۳۲۰۳
Sumithra Mohan
Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Tamil Nadu, India-۶۰۳۲۰۳
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