Schisandrin B (Sch B) is a bioactive dibenzocyclooctadiene derizative that is prevalent in the fruit of . Numerous studies have demonstrated that Sch B has a neuroprotective action by reducing oxidative stress and effectively preventing inflammation. It follows that Sch B is a potential treatment for Alzheimer's disease (AD).
View Article and Find Full Text PDFAs the aging population continues to increase, aging-related inflammation, oxidative stress, and neurodegenerative diseases have become serious global health threats. Resveratrol, a star molecule in natural polyphenols, has been widely reported to have physiological activities such as anti-aging, anti-inflammatory, antioxidant, and neuroprotection. However, its poor water solubility, rapid metabolism, low bioavailability and poor targeting ability, which limits its application.
View Article and Find Full Text PDFThe blood-brain barrier (BBB) is a barrier that maintains brain homeostasis, but it is also one of the major problems that must be overcome in the development of Alzheimer's disease (AD) drugs. To solve this problem, Salidroside (Sal) and Icariin (Ica), drugs with neuroprotective effects were loaded into liposomes, and the targeting molecule Angiopep-2 was modified on the surface of liposomes (Ang-Sal/Ica-Lip), so that the constructed nano-drug delivery system could effectively cross the BBB and exert anti-AD effects. The prepared liposomes exhibited ideal physicochemical properties.
View Article and Find Full Text PDFPurpose: Current chemotherapy fails to offer a desirable efficacy in clinical treatment against breast cancer due to the extensive multi-drug resistance. In this study, we developed dual sensitization anti-resistant nanoparticles to treat refractory breast cancer, aiming to benefit from photodynamic therapy and chemotherapy.
Methods: Hyaluronic acid (HA) derivative and photosensitizer chlorin e6 (Ce6) derivative were synthesized and confirmed by mass spectrometry.
Introduction: Inflammation generally refers to the body's defensive response to stimuli, and skin inflammation is still one of the major problems that affect human physical and mental health. While current pharmacological treatments are reported to have cytotoxicity and various side effects, herbal medicines with few side effects and low cytotoxicity are considered as alternative therapeutic approaches.
Methods: In order to investigate anti-inflammatory effects and mechanisms of ALOE, the potential cytotoxicity of extracts (ALOE) was determined in vitro at first.
Clin Cosmet Investig Dermatol
September 2022
Background: Cannabidiol (CBD) is a non-psychoactive phytocannabinoid constituent of with pain-relieving and anti-inflammatory properties. With the emphasis on natural ingredients in cosmetics, CBD has become a new cosmetic ingredient due to its ability to alleviate inflammation. However, in-depth studies that directly compare the effective mechanism and the therapeutic potential of CBD are still needed.
View Article and Find Full Text PDFAims: Due to poor targeting ability of anti-tumor drugs and self-adaptation of tumors, the chemotherapy of ovarian cancer is still poorly effective. In recent years, the treatment of tumor with nano-targeted agents has become a potential research focus. In this study, a new type of short cell-penetrating peptide RPV-modified paclitaxel plus schisandrin B liposomes were constructed to disrupt VM channels, angiogenesis, proliferation and migration for the treatment of ovarian cancer.
View Article and Find Full Text PDFAmong the many immunosuppressive cells in the tumor microenvironment, tumor-associated-macrophages (TAMs) are well known to contribute to tumor development. TAMs can be conditioned (polarized) to transition between classical M1-like macrophages, or alternatively to M2-like macrophages. Both are regulated by signaling molecules in the microenvironment.
View Article and Find Full Text PDFBackground: Non-small cell lung cancer (NSCLC) is one of the most lethal types of cancer with highly infiltrating. Chemotherapy is far from satisfactory, vasculogenic mimicry (VM) and angiogenesis results in invasion, migration and relapse.
Purpose: The objective of this study was to construct a novel CPP modified vinorelbine and dioscin liposomes by two new functional materials, DSPE-PEG-MAL and CPP-PVGLIG-PEG, to destroy VM channels, angiogenesis, EMT and inhibit invasion and migration.
Osthole (Ost) is a coumarin compound and a potential drug for Alzheimer's disease (AD). However, the effectiveness of Ost is limited by solubility, bioavailability, and low permeability of the blood-brain barrier. In this study, we constructed Ost liposomes with modified CXCR4 on the surface (CXCR4-Ost-Lips), and investigated the intracellular distribution of liposomes in APP-SH-SY5Y cells.
View Article and Find Full Text PDFGastric cancer is a malignant tumour characterised by the uncontrolled cell growth. The incidence and mortality of gastric cancer remain high for the invasion and metastasis. We are urgently seeking a risk-free and effective treatment strategy for gastric cancer.
View Article and Find Full Text PDFIntroduction: Osthole (Ost) is a coumarin compound that strengthens hippocampal neurons and neural stem cells against Aβ oligomer-induced neurotoxicity in mice, and is a potential drug for the treatment of Alzheimer's disease (AD). However, the effectiveness of the drug is limited by its solubility and bioavailability, as well as by the low permeability of the blood-brain barrier (BBB). In this study, a kind of transferrin-modified Ost liposomes (Tf-Ost-Lip) was constructed, which could improve the bioavailability and enhance brain targeting.
View Article and Find Full Text PDFTumor invasion and metastasis are the nodus of anti-tumor. Epithelial cell-mesenchymal transition is widely regarded as one of the key steps in the invasion and metastasis of breast cancer. In this study, GGP modified daunorubicin plus dioscin liposomes are constructed and characterized.
View Article and Find Full Text PDFThe refractive indexes of three ionic liquids, glutamic acid tetrafluoroborate ([GA]BF₄), glutamic acid double trifluoromethyl sulfonyl amine salts ([GA]TF₂N), glutamic acid hexafluorophosphate ([GA]PF), with ethanol and/or water systems under 10~35 °C were studied. The excessive refractive index of the systems and the relationship between the refractive index and the constituent molar fraction at 20 °C, and the empirical relationship between the excess refractive rate and the constituent mole fraction were established. The experimental results show that the excess refractive index is positive in the measured concentration range, and the refractive index of ethanol+water with the increase in the composition appears maximum and the refractive index of ethanol/water+ [GA]BF₄, ethanol/water+[GA]PF, ethanol/water+[GA]TF₂N system is increased with the increase in composition.
View Article and Find Full Text PDFNon-small cell lung cancer (NSCLC) is a malignant cancer characterized by easy invasion, metastasis and poor prognosis, so that conventional chemotherapy cannot inhibit its invasion and metastasis. Doxorubicin (DOX), as a broad-spectrum antitumour drug, cannot be widely used in clinic because of its poor targeting, short half-life, strong toxicity and side effects. Therefore, the aim of our study is to construct a kind of PFV modified DOX plus schisandrin B liposomes to solve the above problems, and to explore its potential mechanism of inhibiting NSCLC invasion and metastasis.
View Article and Find Full Text PDFChemotherapy for non-small cell lung cancer (NSCLC) is far from satisfactory, mainly due to poor targeting of antitumor drugs and self-adaptations of the tumors. Angiogenesis, vasculogenic mimicry (VM) channels, migration, and invasion are the main ways for tumors to obtain nutrition. Herein, RPV-modified epirubicin and dioscin co-delivery liposomes were successfully prepared.
View Article and Find Full Text PDFImmunosuppression and immune tolerance lead tumor cells to evade immune system surveillance and weaken drug efficacy. The presence of various immunosuppressive cells in the tumor microenvironment, especially tumor-associated macrophages (TAMs), has been shown to be a driving force in tumor initiation and development. Reversion of the TAM phenotype is an effective way to induce a subsequent antitumor immune response.
View Article and Find Full Text PDFIn this paper, we present a fast and green method to prepare LiMnO₂ nanorods by Li/Na ion exchange of NaMnO₂ templates. XRD and SEM confirm that the products still maintain the crystal and geometric structure of NaMnO₂ temples. Electrochemical tests show the capacity of LiMnO₂ nanorods is up to 218 mAh · g at the current density of 0.
View Article and Find Full Text PDFConventional treatment fails to completely eliminate highly invasive breast cancer cells, and most surviving breast cancer cells tend to reproliferate and metastasize by forming vasculogenic mimicry (VM) channels. Thus, a type of targeted liposomes was developed by modification with arginine-glycine-aspartic acid (RGD) to encapsulate daunorubicin and emodin separately. A combination of the two targeted liposomes was then developed to destroy VM channels and inhibit tumour metastasis.
View Article and Find Full Text PDFArtif Cells Nanomed Biotechnol
December 2019
Presently, there are no few anticancer drugs that have been used clinically due to their poor targeting ability, short half-life period, non-selective distributions, generation of vasculogenic mimicry (VM) channels, high metastasis, and high recurrence rate. This study aimed to explore the effects of R modified epirubicin-dihydroartemisinin liposomes that could target non-small-cell lung cancer (NSCLC) cells, destroy VM channels, inhibit tumor metastasis, and explain the possible underlying mechanism. In vitro assays indicated that R modified epirubicin-dihydroartemisinin liposomes with ideal physicochemical characteristics could exhibit not only powerful cytotoxicity on A549 cells, but also the effective suppression of VM channels and tumor metastasis.
View Article and Find Full Text PDFCervical cancer remains the second-most prevalent female malignancy around the world, leading to a great majority of cancer-related mortality that occurs mainly in developing countries. Developing an effective and low-cost vaccine against human papillomavirus (HPV) infection, especially in medically underfunded areas, is urgent. Compared with vaccines based on HPV L1 viruslike particles (VLPs) in the market, recombinant HPV L1 pentamer expressed in Escherichia coli represents a promising and potentially cost-effective vaccine for preventing HPV infection.
View Article and Find Full Text PDFArtif Cells Nanomed Biotechnol
June 2019
Glioma is the most common primary malignant brain tumor with a poor prognosis. The application of chemotherapeutic drugs is limited due to the existence of blood-brain barrier and serious side effects. Liposomes have been proven to be a stable and useful drug delivery system for tumors.
View Article and Find Full Text PDFArtif Cells Nanomed Biotechnol
June 2019
Treatment effect of chemotherapy for aggressive non-small-cell lung cancer (NSCLC) is usually unsatisfactory for non-selective distributions of anticancer drugs, generation of vasculogenic mimicry (VM) channels, high metastasis and recurrence rate. Therefore, we developed a kind of dequalinium (DQA) modified paclitaxel plus honokiol micelles in this study to destroy VM channels and inhibit tumour metastasis. In vitro assays indicated that the targeting paclitaxel micelles with ideal physicochemical characteristics could exhibit not only the powerful cytotoxicity on Lewis lung tumour (LLT) cells but also the effective suppression on VM channels and tumour metastasis.
View Article and Find Full Text PDFArtif Cells Nanomed Biotechnol
April 2019
The efficacy of anticancer drugs is rather limited in the treatment of brain glioma due to the hindrance of the blood-brain barrier (BBB). Herein, we reported an easy formulation of functional docetaxel nanomicelles for the treatment of brain glioma using a graft copolymer soluplus as basic material through dual-modifications with a glucose-lipid derivative and a dequalinium-lipid derivative. The studies were performed on brain glioma U87MG cells, in vitro BBB models and brain glioma-bearing nude mice.
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