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Tumor Discovery                                         Targeted drug delivery systems for the treatment of tumors




            Table 7. Nanostructured lipid carriers, their purpose, and antitumor applications
            Nanostructured lipid   Purpose                 Methodology     Application               References
            carriers (NLCs)
            β-lapachone (Lapa) and   Facilitate the catalysis of NAD(P)H   Melted ultrasonic   Overcome multidrug resistance in   [111]
            doxorubicin (DOX)    quinone oxidoreductase-1 (NQO1)   dispersion method  DOX-resistant breast cancer
                                 enzyme and enhance intracellular
                                 uptake
            Baicalein (BCL) and   Hyaluronic acid (HA)-functionalized   Emulsion   Exerting cytotoxicity and   [112]
            doxorubicin (DOX)    NLC for binding with HA receptors  evaporation-  synergistic effect against breast
                                                            solidification  cancer, verified on DOX drug-
                                                                           resistant MCF-7 breast cancer cell
                                                                           line (MCF-7/ADR cells)
            Gemcitabine (GEM) and   HA decorated prodrug NLC   Nanoprecipitation   Prodrug-based tumor-targeted   [113]
            Baicalein (BCL)      for effective binding with   technique    drug delivery on pancreatic cancer
                                 HA-overexpressing pancreatic
                                 receptors
            Doxorubicin (DOX),   Combined prodrug delivery  Solvent diffusion  Stable and high drug-entrapped   [114]
            gemcitabine (GEM), and                                         NLCs used as an antilymph cancer
            vincristine (VCR)                                              agent against B-cell lymphoma
            Paclitaxel (PTX) and   Significantly enhanced the stability   Solvent diffusion  Chemo and photodynamic therapy  [115]
            indocyanine green    of drugs, produced sufficient local
                                 reactive oxygen species, and triggered
                                 accelerated drug release on laser
                                 irradiation, and also increased
                                 intracellular uptake of drugs and
                                 induced increased cytotoxicity in
                                 cancer cells through synergistic
                                 effects
            Cisplatin (DDP) plus   Folate (FA) decorated nanostructured   Melted dispersion   Folate-decorated NLCs for   [116]
            paclitaxel (PTX)     lipid carriers (NLCs) as nanocarriers   method  enhanced in vitro cytotoxicity and
                                 for DDP and PTX delivery                  in vivo penetration efficacy against
                                                                           head-and-neck cancer cells (FaDu
                                                                           cells)


            tested on the targeted cells (A2780/Taxol). Notably, there   strategies excel as carriers due to their ability to control the
            was a marked reduction in mitochondrial potential,   active release of therapeutics, enabling localized action and
            increased intracellular accumulation, and an elevation in   maintaining desirable storage stability. A diverse range of
            the Bax protein level, all suggesting potential applications   lipids  and amphiphilic  building  blocks  (surfactants)  has
            for nanoemulsions in addressing multi-drug resistance   been explored for the creation of vesicular systems, which
            tumors. Ahmad  et al. developed an oil-in-water (o/w)-  are characterized by highly ordered, concentric layers. Due
            based nanoemulsion that contained an omega-3 fatty   to their exclusive morphology and small dimensions, these
            acid-modified taxoid prodrug (DHA/SBT/1214) for    vesicular systems disperse effectively within the affected
            the management of prostate cancer. The nanoemulsion   organ.  Figure  6 displays various vesicular drug carriers,
            system exhibited enhanced cytotoxicity against PPT2   such as liposomes, niosomes, phytosomes, and aquasomes,
            tumor xenograft compared to the commercially available   developed for chemopreventive applications. The vesicular
            Abraxane® [120] . Furthermore,  in vivo treatment with the   approach not only protects drugs from degradation but
            developed system resulted in higher cell viability with   also extends the circulation time of bioactive agents.
            minimal induction of floating spheroids or holoclones, in   These vesicles offer numerous advantages, including
            contrast to the large numbers observed with Abraxane®.  biocompatibility,  non-toxicity, flexible preparation, non-
                                                               immunogenicity, and effective cellular uptake by virtue of
            4.2.3. Vesicular carriers                          their significant interactions with cancerous cells. These
            Vesicular nanosystems offer a means to deliver     attributes make vesicles ideal nanocarriers for addressing
            chemotherapeutic drugs precisely to target sites while   tumor-related issues [121] .  Table 8  compiles different
            sparing normal cells from harm. These drug delivery   vesicular carriers explored for their antitumor action.


            Volume 2 Issue 3 (2023)                         15                         https://doi.org/10.36922/td.1356
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