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Journal of Ethnopharmacology
2025
March
;
346
:346:119697
Saffron and its active constituents ameliorate hypercholesterolemia by inhibiting PCSK9 and modulating Sortilin, LDLR, and SREBP-2 signaling in high fat diet induced hypercholesterolemic C57BL/6 mice
Aisha Siddiq A (1)
,
Shaik Abdul Dileep (2)
,
Aditya Rao Sj (3)
,
Siva Sankara Reddy Singam (4)
,
Asha Martin (5)
1. Department of Biochemistry, CSIR - Central Food Technological Research Institute, Mysuru, 570 020, Karnataka, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India. Electronic address: aishasiddiq78@gmail.com. 2. Food Safety and Analytical Quality Control Laboratory, CSIR - Central Food Technological Research Institute, Mysuru, 570 020, Karnataka, India. Electronic address: dileep.abdul@gmail.com. 3. Plant Cell Biotechnology Department, CSIR - Central Food Technological Research Institute, Mysuru, 570 020, Karnataka, India. Electronic address: adityaraosj@gmail.com. 4. Food Safety and Analytical Quality Control Laboratory, CSIR - Central Food Technological Research Institute, Mysuru, 570 020, Karnataka, India. Electronic address: singam@cftri.res.in. 5. Department of Biochemistry, CSIR - Central Food Technological Research Institute, Mysuru, 570 020, Karnataka, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India. Electronic address: ashamartin@cftri.res.in.
Abstract
Ethnopharmacological relevance: Saffron (Crocus sativus L.) has long been used in Ayurveda, Iranian, and Chinese traditional medicine as a natural remedy for hypercholesterolemia, obesity, and liver disorders though its therapeutic mechanism remains unclear. Aim of the study: This study explores the mechanism by which saffron extract (SE), crocin (CN), and crocetin (CR) mitigate high fat diet (HFD) induced hypercholesterolemia and hepatic inflammation in C57BL/6 mice, focusing on their inhibition of proprotein convertase subtilisin/kexin type 9 (PCSK9). Materials and methods: C57BL/6 mice (N = 10/group) were fed either a, normal diet, HFD, or HFD supplemented with SE, CN, CR, or atorvastatin for 12 weeks. Plasma lipids and inflammatory markers were measured. Histopathological changes were assessed via H&E and Sudan black staining. Gene expression was analyzed using qRT-PCR, and ligand-protein interactions were studied using molecular docking, simulation, and thermophoresis. Results: HFD-fed mice exhibited dyslipidemia, liver damage, and inflammation, which SE, CN, and CR significantly improved. Treatments reduced cholesterol, triglycerides, and reactive oxygen species, reversed fatty liver degeneration, and downregulated PCSK9 and sortilin expression while upregulating LDLR. They suppressed transcription factors SREBP-1C and SREBP-2 and reduced inflammatory markers, including TNF-α, while increasing IL-10 expression. CR reduced plasma PCSK9 secretion by 39.9 % (p < 0.05). Docking and simulation studies confirmed the strong binding potential of CR and CN to PCSK9. Conclusion: Saffron and its active components (CN and CR) are novel natural PCSK9 inhibitors that effectively ameliorate hypercholesterolemia by modulating sortilin, LDLR and SREBP-2 pathway, potentially opening the way for developing new therapeutic approaches for managing cholesterol related disorders.
DHARA ID:
D064104
Pubmed ID:
40157403
Link To Full Paper
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