Background: Colorectal cancer (CRC) is one of the most common cancers worldwide and is often treated with chemotherapy. However, systemic toxicity, non-specificity, and drug resistance are major challenges associated with chemotherapeutic drugs. Nanocarriers such as niosomes (NIOs) can enhance drug accumulation at the tumor site while minimizing systemic side effects.
View Article and Find Full Text PDFHere, a zinc-cystine (Zn-cys) biological-metal-organic framework (bio-MOF) coated with folic acid-modified chitosan (FC) nanogel, was developed for pH/glutathione dual-responsive delivery of doxorubicin (DOX). In vitro drug release demonstrated a superior cumulative DOX release (83.5 %) at pH 5.
View Article and Find Full Text PDFIntranasal treatment enables circumvention of the blood-brain barrier with direct targeting of cerebral tissues. Here, in situ-forming hydrogel of Poloxamer 407 containing thiolated chitosan nanoparticles (TCS-NPs) was developed for nasal delivery of galantamine. The thiolation value was 198.
View Article and Find Full Text PDFThis study focuses on developing a novel nanoformulation involving hyaluronic acid (HA) coated niosomes (NIOs) containing Fingolimod (FTY720) and quantum dots (QDs) for targeted therapy and metastasis inhibition of triple-negative breast cancer (TNBC). HNio@QDFTY720 NPs were synthesized via thin film hydration method (TFH), resulting in a size of 126.4 nm, a polydispersity index (PDI) of 0.
View Article and Find Full Text PDFIntegrating in situ gelling hydrogels with nanoparticles can improve therapeutic efficacy in localized breast cancer treatment. In this research, the novel in situ gelling hydrogels based on thiolated polyvinyl alcohol/polyethylene glycol diacrylate (TPVA/PEGDA) embedded with doxorubicin (DOX) loaded chitosan/gold nanoparticles (CS/AuNPs) nanogels were developed via thiol-ene reaction in the absence of any additives at room temperature within several seconds. The physico/chemical properties of the hydrogels and NPs were investigated via FT-IR, UV-vis, XRD, SEM, and DLS.
View Article and Find Full Text PDFTo tackle the ocular inflammation and infection, we developed a Poloxamer 407 (PM)-gellan gum (GG)-based (PM-GG) in situ hydrogels containing dexamethasone (DEX)-loaded chitosan (CS) nanoparticles (DEX-CSNPs), neomycin sulfate (NMS), and polymixin b sulfate (PMB). Such a hybrid hydrogel was developed for the localized co-delivery of antibiotics and corticosteroids. The physicochemical properties of DEX-CSNPs (i.
View Article and Find Full Text PDFThe combination of hydrogels with nanoformulations can significantly enhance the delivery and effectiveness of drugs in ophthalmic drug delivery systems. In the current study, the polyethylene glycol diacrylate (PEGDA)/thiolated gellan gum (GGSH) hydrogels based on GGSH and PEGDA were prepared via thiol-ene reaction using Irgacure 2959 as a photoinitiator. To this end, the modification of GG was achieved by esterification of the hydroxyl groups of GG with the carboxyl group of mercaptopropionic acid with a free thiol amount of 95.
View Article and Find Full Text PDFObjective: Breast cancer is the most frequently diagnosed cancer among women, posing significant health risks. This study investigates niosome nanoparticles as a delivery system for Cyclophosphamide (CYC) and Sodium Oxamate (SO) to target apoptotic pathways in MDA-MB-231 breast cancer cells.
Methods: Lipid-based niosomes were prepared using the thin-film hydration method and characterized for size, zeta potential, and Fourier-transform infrared spectroscopy (FTIR) profiles.
Introduction: Breast cancer, a formidable global health challenge for women, necessitates innovative therapeutic strategies with enhanced efficacy and minimal side effects. Aripiprazole (ARI), a widely used schizophrenia medication, exhibits promising potential in the treatment of breast cancer. As cancer therapy evolves towards a combination approach, multimodal nano-based delivery systems, such as ARI-loaded niosomes (NIOs) combined with Chitosan-Au nanoparticles for chemo-photothermal therapy, show promise over traditional chemotherapy alone by enhancing targeted efficacy and minimizing side effects.
View Article and Find Full Text PDFOxidative stress is a key factor in various diseases, and thus exogenous antioxidants offer effective therapeutic potential. While astaxanthin (ATX) is a potent natural antioxidant, its poor water solubility, bioavailability, and stability hinder its application. This study aimed to develop an amphiphilic chitosan-graft-poly(lactide) (CS-g-PLA) copolymer utilizing a new strategy by ring-opening polymerization of D, l-lactide via organosoluble CS/sodium dodecyl sulfate complex.
View Article and Find Full Text PDFInt J Biol Macromol
October 2024
Colon cancer (CC) is one of the most prevalent cancers in the world, and chemotherapy is widely applied to combat it. However, chemotherapy drugs have severe side effects and emergence of multi drug resistance (MDR) is common. This bottleneck can be overcome by niosome nanocarriers that minimize drug dose/toxicity meanwhile allow co-loading of incompatible drugs for combination therapy.
View Article and Find Full Text PDFLong non-coding RNA (lncRNA) regulates many physiological processes by acting as competitive endogenous RNA (ceRNA). The dysregulation of lncRNA X-inactive specific transcript (XIST) has been shown in various human disorders. However, its role in the pathogenesis of polycystic ovary syndrome (PCOS) is yet to be explored.
View Article and Find Full Text PDFChemotherapy is widely used for cancer therapy; however, its efficacy is limited due to poor targeting specificity and severe side effects. Currently, the next generations of delivery systems with multitasking potential have attracted significant attention for cancer therapy. This study reports on the design and synthesis of a multifunctional nanoplatform based on niosomes (NIO) coloaded with paclitaxel (PTX), a chemotherapeutic drug commonly used to treat breast cancer, and sodium oxamate (SO), a glycolytic inhibitor to enhance the cytotoxicity of anticancer drug, along with quantum dots (QD) as bioimaging agents, and hyaluronic acid (HA) coating for active targeting.
View Article and Find Full Text PDFBreast cancer (BC) is one of the most common cancers in women, and chemotherapy is usually used to overcome this cancer. To improve drug delivery to cancer sites and reduce their side effects, nanocarriers such as niosomes (NIOs) are used. Moreover, a combination of other therapeutic methods like photothermal therapy (PTT) can help to enhance the chemotherapy effect.
View Article and Find Full Text PDFOxidative stress (OS) plays a crucial role in disease development. Astaxanthin (ATX), a valuable natural compound, may reduce OS and serve as a treatment for diseases like neurodegenerative disorders and cancer. regulates antioxidant enzymes and OS management.
View Article and Find Full Text PDFIntroduction: Biomaterials currently utilized for the regeneration of myocardial tissue seem to associate with certain restrictions, including deficiency of electrical conductivity and sufficient mechanical strength. These two factors play an important role in cardiac tissue engineering and regeneration. The contractile property of cardiomyocytes depends on directed signal transmission over the electroconductive systems that happen inside the innate myocardium.
View Article and Find Full Text PDFIn this study, we developed a biocompatible composite hydrogel that incorporates microspheres. This was achieved using a Schiff base reaction, which combines the amino and aldehyde groups present in gelatin (Gel) and oxidized alginate (OAlg). We suggest this hydrogel as a promising scaffold for bone tissue regeneration.
View Article and Find Full Text PDFThere is increasing evidence that malignant tumors are initiated and maintained by a sub-population of tumor cells that have similar biological properties to normal adult stem cells. This very small population of Cancer Stem Cells (CSC) comprises tumor initiating cells responsible for cancer recurrence, drug resistance and metastasis. Conventional treatments such as chemotherapy, radiotherapy and surgery, in addition to being potentially toxic and non-specific, may paradoxically increase the population, spread and survival of CSCs.
View Article and Find Full Text PDFIn recent years, various nanoparticles (NPs) have been discovered and synthesized for the targeted therapy of cancer cells. Targeted delivery increases the local concentration of therapeutics and minimizes side effects. Therefore, NPs-mediated targeted drug delivery systems have become a promising approach for the treatment of various cancers.
View Article and Find Full Text PDFIn this study, pH-sensitive in situ gelling hydrogels based on oxidized alginate and gelatin-containing doxorubicin (DOX) loaded chitosan/gold nanoparticles (CS/AuNPs) nanogels were fabricated via Schiff-base bond formation. The obtained CS/AuNPs nanogels indicated a size distribution of about 209 nm with a zeta potential of +19.2 mV and an encapsulation efficiency of around 72.
View Article and Find Full Text PDFBiochim Biophys Acta Mol Basis Dis
August 2023
Bone tumors are relatively rare, which are complex cancers and primarily involve the long bones and pelvis. Bone cancer is mainly categorized into osteosarcoma (OS), chondrosarcoma, and Ewing sarcoma. Of these, OS is the most intimidating cancer of the bone tissue, which is mostly found in the log bones in young children and older adults.
View Article and Find Full Text PDFBiocompatible and biodegradable scaffolds based on natural polymers such as gelatin and chitosan (CS) provide suitable microenvironments in dental tissue engineering. In the present study, we report on the synthesis of injectable thermosensitive hydrogel (PNIPAAm-g-CS copolymer/gelatin hybrid hydrogel) for osteogenic differentiation of human dental pulp stem cells (hDPSCs). The CS-g-PNIPAAm was synthesized using the reaction of carboxyl terminated PNIPAAm with CS, which was then mixed with various amounts of gelatin solution in the presence of genipin as a chemical crosslinker to gain a homogenous solution.
View Article and Find Full Text PDFColloids Surf B Biointerfaces
December 2022
Chitosan (CS)-based pH-sensitive nanocomposites were fabricated for the targeted delivery of doxorubicin (DOX) to osteosarcoma cells. To prepare the nanocomposite, CS was functionalized with succinic anhydride (SA) (CS-SA). CS-folic acid (FA) conjugates were produced by the conjugation of CS with FA via an amide bond.
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