Autophagic dysfunction-induced deterioration of the retinal microenvironment drives the progression of wet age-related macular degeneration (wAMD). The efficacy of single-target anti-VEGF antibodies in treating wAMD has long been suboptimal due to the intricate interplay between autophagy dysfunction, oxidative stress, and angiogenesis. Here, we introduce an intravitreal hydrogel depot, named Rab&Rapa-M@G, consisting of rapamycin-loaded microemulsion (Rapa-M, an mTOR inhibitor), ranibizumab (anti-VEGF antibody), and a thermosensitive hydrogel matrix.
View Article and Find Full Text PDFIron-based nanocarriers have demonstrated potential in redirecting tumor associated macrophages (TAMs) polarization towards the M1 phenotype, critical for activating the tumor microenvironment (TME) in triple negative breast cancer (TNBC). However, their real-world effectiveness is curtailed by insufficient Fe exposure and the absence of suitable synergists in tumors. We introduce an air bag-embedded iron-based MIL-101 metal-organic frameworks (MOF) for igniting the TME in TNBC through bubble-driven tumoral codelivery of Fe and lentinan.
View Article and Find Full Text PDFEthnopharmacological Relevance: Trichosanthis pericarpium (TP; Gualoupi, pericarps of Trichosanthes kirilowii Maxim) has been used in traditional Chinese medicine (TCM) to reduce heat, resolve phlegm, promote Qi, and clear chest congestion. It is also an essential herbal ingredient in the "Gualou Xiebai" formula first recorded by Zhang Zhongjing (from the Eastern Han Dynasty) in the famous TCM classic "Jin-Guì-Yào-Lüe" for treating chest impediments. According to its traditional description, Gualou Xiebai is indicated for symptoms of chest impediments, which correspond to coronary heart diseases (CHD).
View Article and Find Full Text PDFSustainable retinal codelivery poses significant challenges technically, although it is imperative for synergistic treatment of wet age-related macular degeneration (wAMD). Here, a microemulsion-doped hydrogel (Bor/PT-M@TRG) is engineered as an intravitreal depot composing of temperature-responsive hydrogel (TRG) and borneol-decorated paeoniflorin (PF) & tetramethylpyrazine (TMP)-coloaded microemulsions (Bor/PT-M). Bor/PT-M@TRG, functioning as the "ammunition depot", resides in the vitreous and continuously releases Bor/PT-M as the therapeutic "bullet", enabling deep penetration into the retina for 21 days.
View Article and Find Full Text PDFEthnopharmacological Relevance: The herbal pair of Trichosanthis Pericarpium (TP) - Trichosanthis Radix (TR) can be seen in the famous formula "Beimu Gualou San". It is a commonly selected combination of medicinal herbs for the treatment of cough with lung heat. Both drugs are derived from Trichosanthes kirilowii Maxim, a medicinal plant known for its ability to clear heat, resolve phlegm, produce saliva, and alleviate dryness.
View Article and Find Full Text PDFM1 polarization of tumor-associated macrophages (TAMs) is a promising approach to breaking through therapeutic barriers imposed by the immunosuppressive tumor microenvironment (TME). As a clinically-used immunopotentiator for cancer patients after chemotherapies; however, the immunomodulatory mechanism and potential of polyporus polysaccharide (PPS) remains unclear. Here, we present mannose-decorated PPS-loaded superparamagnetic iron-based nanocomposites (Man/PPS-SPIONs) for synergistic M1 polarization of TAMs and consequent combinational anti-breast cancer therapy.
View Article and Find Full Text PDFEthnopharmacological Relevance: Liver cancer is a worldwide malignant tumor, and currently lacks effective treatments. Clinical studies have shown that epimedium (YYH) has therapeutic effects on liver cancer, and some of its prenylflavonoids have demonstrated anti-liver cancer activity through multiple mechanisms. However, there is still a need for systematic research to uncover the key pharmacodynamic material basis and mechanism of YYH.
View Article and Find Full Text PDFBackground: Conventional dissolving microneedles (DMNs) face significant challenges in anti-melanoma therapy due to the lack of active thrust to achieve efficient transdermal drug delivery and intra-tumoral penetration.
Methods: In this study, the effervescent cannabidiol solid dispersion-doped dissolving microneedles (Ef/CBD-SD@DMNs) composed of the combined effervescent components (CaCO & NaHCO) and CBD-based solid dispersion (CBD-SD) were facilely fabricated by the "one-step micro-molding" method for boosted transdermal and tumoral delivery of cannabidiol (CBD).
Results: Upon pressing into the skin, Ef/CBD-SD@DMNs rapidly produce CO bubbles through proton elimination, significantly enhancing the skin permeation and tumoral penetration of CBD.
Sustained retina drug delivery and rational drug combination are considered essential for enhancing the efficacy of therapy for wet age-related macular degeneration (wAMD) due to the conservative structure of the posterior ocular segment and the multi-factorial pathological mechanism. Designing a drug co-delivery system that can simultaneously achieve deep penetration and long-lasting retention in the vitreous is highly desired, yet remains a huge challenge. In this study, we fabricated Bor/RB-M@TRG as an intravitreal-injectable hydrogel depot for deep penetration into the posterior ocular segment and long-lasting distribution in the retinal pigment epithelium (RPE) layer.
View Article and Find Full Text PDFStarch nanoparticles (SNPs) was produced from type-A, B and C native starches (corn, potato and Trichosanthes kirilowii pulp starches respectively), via the nanoprecipitation method. The SNPs showed different amylose contents, water contact angles, surface morphologies and urea clearance performances. In this work, to examine the parameters of SNPs that may change the urea adsorption capacity, urea adsorption performance in adsorption environments with different pH values, urea concentrations, and adsorption times was examined.
View Article and Find Full Text PDFThe concept of the inflammatory pre-metastatic niche (PMN) provides a new and promising direction for the prevention and treatment of metastasis. The excessive activation of the GAS-STING signaling leads to augmented metastasis by promoting the formation of the inflammatory PMN. In this study, tumor-derived microparticles (MP) were used to establish the PMN model both in vitro and in vivo, and pro-inflammatory mediators were also employed to evaluate the effects of Icaritin (ICT).
View Article and Find Full Text PDFStarch nanoparticles (SNPs) with different morphology and particle size can be prepared by modulating the reaction conditions over SNPs preparation. This study was to synthesize various SNPs by using ultrasound assisted nanoprecipitation method, and characterized by particle size analysis, SEM and XRD performing. SNPs were successfully produced via nanoprecipitation and the particle size were controlled in the range of 95 to 150 nm.
View Article and Find Full Text PDFAlthough Scrophulariae Radix (root of Scrophularia ningpoensis) has received much attention, little is known about the nonmedicinal parts of S. ningpoensis. A comprehensive evaluation of the multibioactive constituents in the flowers, rhizomes, leaves, and stems of S.
View Article and Find Full Text PDFTo investigate the effects of essential oil from three kinds of pungent herbs,namely Menthae Haplocalycis Herba,Atractylodis Rhizoma and Cnidii Fructus,on the transdermal absorption in vitro of alkaloids from Sophorae Flavescentis Radix. The modified vertical Franz diffusion cell was used to conduct a transdermal experiment in vitro with the isolated abdominal skin of the SD rats as the transdermal absorption barrier. The effects of such three kinds of pungent essential oil on percutaneous absorption of alkaloids from Sophorae Flavescentis Radix were investigated by determining the content of 6 alkaloids( oxymatrine,oxysophocarpine,N-methylcytisine,sophoridine,matrine,and sophocarpidine) in the transdermal acceptor with ultra-performance liquid chromatography-triple quadruple mass spectrometry( UPLC-TQ-MS) technique simultaneously.
View Article and Find Full Text PDFMaxim. is one of the original plants for traditional Chinese medicines Trichosanthis Fructus, Trichosanthis Semen, Trichosanthis Pericarpium and Trichosanthis Radix. Amino acids, nucleosides and carbohydrates are usually considered to have nutritional value and health-care efficacy.
View Article and Find Full Text PDFTrichosanthin (root of Trichosanthes kirilowii Maxim.) has received much attention, but T. kirilowii has received little systematic analysis.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
January 2017
This study established a rapid UPLC-TQ-MS/MS method for determination of eight active ingredients in Lilium lancifolium. The contents range of regaloside E, F, C and B are as follows: 0.604 0×10⁻¹-18.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
December 2016
This study intends to explore the potential resource-orientedutilization value of the flower of Sophora flavescents by analyzing alkaloids and flavonoids in the flower of S. flavescens from Shanxi province. This study established a rapid UPLC-TQ-MS/MS method that is used for determination of seven alkaloids and seven flavonoids in the flower of S.
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