1. The Effect of Chrysin Loaded PLGA-PEG on Metalloproteinase Gene Expression in Mouse 4T1 Tumor Model
- Author
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Meisam Barati, Mohsen Sharif Zak, Khaled Seidi, Abolfazl Akbarzadeh, Nosratollah Zarghami, and Zoheyr Mohammadi
- Subjects
medicine.medical_specialty ,Antineoplastic Agents ,Breast Neoplasms ,macromolecular substances ,02 engineering and technology ,Pharmacology ,Matrix metalloproteinase ,Metastasis ,03 medical and health sciences ,chemistry.chemical_compound ,Mice ,Phosphatidylinositol 3-Kinases ,0302 clinical medicine ,Polylactic Acid-Polyglycolic Acid Copolymer ,Cell Line, Tumor ,Drug Discovery ,PEG ratio ,medicine ,Animals ,Humans ,Chrysin ,Lactic Acid ,Cell Proliferation ,Flavonoids ,Drug Carriers ,Tissue Inhibitor of Metalloproteinase-2 ,Tissue Inhibitor of Metalloproteinase-1 ,technology, industry, and agriculture ,Cancer ,Mammary Neoplasms, Experimental ,General Medicine ,021001 nanoscience & nanotechnology ,medicine.disease ,Surgery ,PLGA ,chemistry ,Matrix Metalloproteinase 9 ,Cell culture ,030220 oncology & carcinogenesis ,Matrix Metalloproteinase 2 ,Nanoparticles ,Female ,RNA extraction ,0210 nano-technology ,Polyglycolic Acid - Abstract
Despite the advances in medicine, cancer remains as one of the leading causes of the death worldwide. Through our previous study, the Chrysin loaded PGLA/PEG has been synthesized, and its physico-chemical properties were characterized. The aim of the present study was to evaluate the Chrysin loaded PGLA/PEG nanoparticle therapeutic effects on TIMP-1, TIMP-2, MMP-2, MMP-9 and PI3k expression in Mouse 4T1 breast tumor model.30 mice were enrolled in the current study, and the mice were randomly divided into 3 groups: untreated (n=10), Chrysin treatment (n=10) and Chrysin-loaded PLGA/PEG-based treatment (n=10). 1064T1 mammary carcinoma cells subcutaneously inoculated in the flank on mice orthotopically. After the treatments, the primary tumors were isolated from the Mice under anesthesia. For RNA extraction, the isolated tissues were frozen in -70°C. RNA extraction was performed by using RNA extraction kit. The expression of TIMP-1, TIMP-2, MMP-2 and MMP-9 were measured by the real time PCR.The study results showed the expression of TIMP-1 and TIMP-2 in Chrysin-loaded PLGA/PEG treatment groups was higher than Chrysin receiving one. Also, the results showed that the MMP-9 and MMP-2 expressions were reduced after Chrysin loaded PLGA/PEG treatment. The reduction of the mentioned genes was greater in Chrysin-loaded PLGA/PEG treatment group in comparison with Chrysin receiving group.According to our present study, expression of the mentioned genes after treatments, Chrysin; especially, Chrysin-loaded PLGA/PEG could be proposed as a new component in the cancer therapy for reducing the progression and metastasis.
- Published
- 2017