Publications by authors named "Hassan A Almoustafa"

Flow cytometry techniques utilizing dual staining with annexin V and propidium iodide (PI) provide a robust method for quantitatively analyzing apoptosis induction. Annexin V binds phosphatidylserine exposed on the outer leaflet of the plasma membrane during early apoptosis, while PI permeates late apoptotic/necrotic cells. Simultaneous staining allows differentiation of viable, early apoptotic, and late apoptotic/necrotic populations.

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Article Synopsis
  • PEG-coated PLGA nanoparticles are effective for targeted cancer treatment due to their biocompatibility and ability to accumulate in tumors via the EPR effect.
  • Doxorubicin's efficacy is limited by its cardiotoxicity, and the study explores the use of hyaluronic acid to enhance drug delivery and reduce metastasis in breast cancer models.
  • Treatment with HA-PEG-PLGA nanoparticles significantly inhibited tumor growth and metastasis compared to controls and free doxorubicin, indicating potential for further clinical development after more safety studies.
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Poly lactic-co-glycolic acid (PLGA) nanoparticles are intensively studied nanocarriers in drug delivery because of their biodegradability and biochemical characteristics. Polyethylene glycol (PEG) coating for nanocarriers gives them long circulation time in blood and makes them invisible to the reticuloendothelial system. Breast cancer cells have greater uptake of hyaluronic acid compared to normal cells as it binds to their overexpressed CD44 receptors.

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Nanoprecipitation is a simple and increasingly trending method for nanoparticles preparation. The self-assembly feature of poly (ethylene glycol)-poly (lactide-co-glycolic acid) (PEG-PLGA) amphiphilic copolymer into a nanoparticle and its versatile structure makes nanoprecipitation one of the best methods for its preparation. The aim of this study is to review currently available literature for standard preparation of PEG-PLGA nanoparticles using nanoprecipitation technique in order to draw conclusive evidenceto draw conclusive evidence that can guide researchers during formulation development.

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