by Keyword: Cigarette smoke
Rached, Rita Abi, Shakya, Ashok K, Fulgheri, Federica, Aroffu, Matteo, Castangia, Ines, Garcia-Villen, Fatima, Ferraro, Maria, Fernandez-Busquets, Xavier, Pedraz, Jose Luis, Louka, Nicolas, Maroun, Richard G, Manconi, Maria, Manca, Maria Letizia, (2025). Resveratrol and grape pomace extract incorporated in modified phospholipid vesicles: A potential strategy to mitigate cigarette smoke-induced oxidative stress Free Radical Biology And Medicine 230, 151-162
In this study, the extraction process of grape pomace from the Lebanese autochthonous cultivar Asswad Karech was enhanced through the selection of specific parameters, yielding an antioxidant extract (20 mg/mL) that was co-loaded with resveratrol (5 mg/mL) into phospholipid vesicles containing penetration enhancers (PEVs). Propylene glycol (PG) was incorporated as a penetration enhancer at concentrations of 10, 20, and 30 % to obtain 10 PG-PEVs, 20 PG-PEVs, and 30 PG-PEVs. Vesicle preparation was achieved through direct sonication, yielding unilamellar and bilamellar vesicles with an average size of similar to 205; 234 nm, a monodisperse distribution (polydispersity index
JTD Keywords: By-product valorisation, Cigarette smoke, Delivery, Dru, Grape pomace extract, In-vitro, Liposomes, Lung deliver, Oxidative stress, Phospholipids vesicles
Manca, ML, Ferraro, M, Pace, E, Di Vincenzo, S, Valenti, D, Fernàndez-Busquets, X, Peptu, CA, Manconi, M, (2021). Loading of beclomethasone in liposomes and hyalurosomes improved with mucin as effective approach to counteract the oxidative stress generated by cigarette smoke extract Nanomaterials 11, 850 
In this work beclomethasone dipropionate was loaded into liposomes and hyalurosomes modified with mucin to improve the ability of the payload to counteract the oxidative stress and involved damages caused by cigarette smoke in the airway. The vesicles were prepared by dispersing all components in the appropriate vehicle and sonicating them, thus avoiding the use of organic solvents. Unilamellar and bilamellar vesicles small in size (~117 nm), homogeneously dispersed (polydispersity index lower than 0.22) and negatively charged (~−11 mV), were obtained. Moreover, these vesicle dispersions were stable for five months at room temperature (~25 C). In vitro studies performed using the Next Generation Impactor confirmed the suitability of the formulations to be nebulized as they were capable of reaching the last stages of the impactor that mimic the deeper airways, thus improving the deposition of beclomethasone in the target site. Further, biocompatibility studies performed by using 16HBE bronchial epithelial cells confirmed the high biocompatibility and safety of all the vesicles. Among the tested formulations, only mucin-hyalurosomes were capable of effectively counteracting the production of reactive oxygen species (ROS) induced by cigarette smoke extract, suggesting that this formulation may represent a promising tool to reduce the damaging effects of cigarette smoke in the lung tissues, thus reducing the pathogenesis of cigarette smoke-associated diseases such as chronic obstructive pulmonary disease, emphysema, and cancer. ◦
JTD Keywords: 16hbe cells, beclomethasone, cigarette smoke extract, mucin, oxidative stress, phospholipid vesicles, pulmonary delivery, 16hbe cells, Beclomethasone, Cigarette smoke extract, Mucin, Oxidative stress, Phospholipid vesicles, Pulmonary delivery
