Absstract of: WO2024003363A1
The present invention relates to a method and compositions for optimized cytosolic delivery of active agents, in particular nucleic acids, using a specific class of cationic amphiphilic compounds. The method and compositions of the invention enhance intracellular release of the agents and can be used for the treatment of various disorders.
Absstract of: EP4548973A2
A pharmaceutical composition including insulin, Docosahexaenoic acid (DHA) and coenzyme Q10 and methods of manufacturing and using the composition are provided.
Absstract of: MX2024000185A
There are provided improved amphiphilic comb polymers, comprising a hydrophilic backbone with regularly-spaced pendant hydrophobic moieties, having well-controlled molecular weights, structures, and end groups. The polymers self-assemble into core-corona nanoparticles in aqueous environments, which are capable of disrupting viral coat proteins, and which are capable of encapsulating antiviral drugs and prodrugs. Regularly-spaced targeting moieties optionally mediate the adherence of the nanoparticles to the viral coat. The compositions of the invention are useful as treatments for viral infection, including infections with SARS-CoV-2.
Absstract of: US2025099394A1
The present invention provides a lipid nanoparticle (LNP) formulation comprising at least one sialic acid (SA)-containing lipid. The LNP formulation is capable of effectively binding cell surface Siglecs, transfecting certain cells in vitro and targeting certain cells in vivo. The present invention also provides methods of using the LNP compositions described herein for pharmaceutical applications. For example, the LNPs provided herein are useful for the intracellular delivery of a nucleic acid therapeutic to a subject.
Absstract of: AU2023300349A1
Provided is a lipid formulation capable of forming a lipid-based nanoparticle comprising an ionizable lipid to phospholipid molar ratio of 0.1 - 1.30 of in association with a nucleic acid payload, and in some embodiments, a stabilizing agent. In embodiments, the nucleic acid payload is a vaccine genetic element.
Absstract of: US2024042070A1
Described herein are compositions and methods for treating cancer using a RIG-I agonist precursor comprising single-stranded 5′ uncapped triphosphate or biphosphate antisense oligonucleotide having a sequence complementary to an endogenous miRNA; optionally wherein the compositions and methods comprise a nanoparticle for targeted delivery of the RIG-I agonist precursor and a radiolabel to a tumor micro environment.
Absstract of: EP4549464A1
Provided are a new nanobody targeting human HER2/ErbB2 (HER2-Nanobody, HER2-Nb), a method for preparing same, and use thereof. The monoclonal nanobody efficiently and specifically binds to a purified HER2 protein and HER2 on the surface of a tumor cell, blocks a signal pathway of tumor HER2, and can be used for preparing a therapeutic antibody, an antibody-fusion protein or an antibody-drug conjugate targeting HER2-positive tumors.
Absstract of: WO2024006960A1
The present disclosure relates to compositions comprising lipid nanoparticles for delivering nucleic acid molecules into cells. Also included are methods for producing and using such compositions.
Absstract of: EP4548757A1
The present invention relates to a method for producing a nonhuman primate animal model of cerebral infarction, comprising administering endothelin to basal ganglia and thalamic region of a nonhuman primate, and thereby inducing basal ganglia damage, thalamus damage, and internal capsule damage; and a pharmaceutical composition for the treatment of cerebral infarction at a subacute to chronic stage, penetrating branch infarction, or cerebral infarction having brain damage in a penetrating branch territory, comprising a NeuroD1 protein or a polynucleotide encoding the NeuroD1 protein.
Absstract of: WO2024006410A1
This document relates to methods and materials for treating vascular stenosis. For example, nanoparticles (e.g., poly lactic-co-glycolic acid (PLGA) nanoparticles) including one or more inhibitors of a monocyte chemoattractant protein (MCP) polypeptide (e.g., bindarit) are provided. In some cases, a composition (e.g., a hydrogel composition) including one or more nanoparticles including one or more inhibitors of a MCP polypeptide (e.g., bindarit) can be placed in direct contact with an adventitia of one or more blood vessels (e.g., one or more blood vessels at risk of stenosis formation) within a mammal (e.g., a mammal such as a human that underwent an angioplasty) to reduce or eliminate stenosis formation in the blood vessel(s).
Absstract of: WO2024028492A1
The present invention relates to methods of determining the efficiency of RNA encapsulation in lipid nanoparticles (LNPs). In some embodiments, methods according to the present invention comprise a step a) of contacting a sample comprising RNA encapsulated in LNPs with a first fluorophore and a second fluorophore, thereby forming fluorophore-RNA complexes, and a step b) of detecting the fluorescence signals of the complexed first and second fluorophore, wherein the first fluorophore permeates the LNPs and wherein the second fluorophore does not permeate the LNPs.
Absstract of: CN119925291A
本发明涉及细胞膜仿生递药技术领域,具体涉及靶向动脉粥样硬化病灶的细胞膜仿生递药系统的制备方法及其产品和应用,步骤为先培养巨噬细胞,提取和纯化巨噬细胞膜,并加入酶抑制复合物并储存;将储存的巨噬细胞膜利用带有纳米膜的微型挤压机反复挤出获得巨噬细胞膜微囊;利用溶剂挥发法制备基于PEG‑PLGA的载药纳米颗粒;最后将巨噬细胞膜微囊和载药纳米颗粒分别从微流控电穿孔芯片的两个入口注入,再施加两段式交变电场,处理后得到分散均匀的混合液,再将该混合液采用带有纳米膜的微型挤压机共挤出,即可。本发明制备的细胞膜仿生递药系统具有生物可降解、药物缓释、长效循环、结构稳定、主被动双重高效靶向的优势,能有效抑制动脉粥样斑块的发展。
Absstract of: CN119925304A
本发明公开了一种抗炎的脂质Phoyunbene C纳米材料、制备方法及应用。该纳米材料主要由Phoyunbene C纳米点核、DSPE‑PEG2000、大豆卵磷脂和胆固醇构成;制备过程中,将Phoyunbene C溶于磷酸盐缓冲液中,加热、搅拌,制得水相;将DSPE‑PEG2000、大豆卵磷脂、胆固醇溶于乙醇中,加热、搅拌、超声分散,得到有机相;将有机相和水相溶液分别装载入注射器,通过双相微流道混合工艺,得到脂质Phoyunbene C纳米点溶液。本发明所提供的脂质Phoyunbene C纳米材料的制备方法简便,制备条件温和,实现了在体内外更强的抗炎功效,有效改善骨关节炎症状。
Absstract of: CN119931037A
本发明属于生物医药领域,尤其涉及一种脂质‑亲水聚合物及其制备方法和应用。本发明提供的脂质‑亲水聚合物具有式(I)所示结构,式(I)中,R1为聚合度在20~50的亲水聚合物基团,R2为C2~C4烷基,R3为C2~C4烷基,R4为含有C10~C22单尾或C10~C22双尾的疏水性脂质基团,L1为酯键,L2为酰胺键或酯键。本发明通过分子结构设计,在亲水聚合物与脂质之间引入缩硫酮敏感化学键,获得了可断裂型脂质‑亲水聚合物。在此基础上,通过提升脂质‑亲水聚合物在脂质纳米颗粒中的摩尔百分占比,能够在增强脂质纳米颗粒稳定性的同时实现高效转染。#imgabs0#式(I)。
Absstract of: CN119925348A
本发明提供一种鞣花酸纳米颗粒,无需添加大量辅料和复杂制备工艺,即能解决鞣花酸溶解度、透皮吸收性能、口服生物利用度极低的问题。将其用于制备具预防或治疗脱发功效的食品、保健食品、药品、化妆品、日化用品中,可使脱发模型小鼠的毛发生长改善,外用治疗效果最佳,小鼠毛发浓密油亮,毛发重量与长度相较于模型组都得到极显著改善;口服组也具较优的治疗效果;同时预灌胃后造模显示出相较于模型组的优良毛发生成情况,可知其同时具有预防作用。同时,鞣花酸纳米颗粒泡沫剂具有优异的分散性和渗透性,其轻盈的泡沫结构更易在皮内横向与纵向扩散。更进一步,鞣花酸纳米颗粒显示出向皮肤深层渗透的作用,最深可直达及靶向皮肤筋膜层。
Absstract of: CN119930762A
本公开涉及非洲猪瘟病毒EP153R蛋白的免疫原性片段、重组蛋白、免疫原性组合物及其用途。本公开提供的非洲猪瘟病毒EP153R蛋白的免疫原性片段或其具有免疫原性的变体能够大大提高表达量,同时保留了强免疫活性。
Absstract of: CN119925298A
本发明公开了一种线粒体功能障碍仿生纳米药物及其制备和应用,所述仿生纳米药物包含作为载体的RGD工程化外泌体,以及修饰在所述载体的表面的地喹氯铵,以及封装在所述载体内部的奥沙利铂。本发明仿生纳米药物(OXA@Exo‑RD)可在血液循环过程中保护线粒体障碍货物,通过顺序靶向增加货物的线粒体蓄积,货物1(DQA)诱导氧化应激,引发线粒体介导的细胞凋亡和线粒体功能障碍;货物2(OXA)破坏线粒体DNA,阻止DNA修复启动,从而克服化疗耐药。两种货物协同克服CRC耐药,并抑制转移。
Absstract of: CN119930716A
本公开提供了一类抗原提呈细胞靶向脂质以及包含其的组合物。具体的涉及包含所述脂质的纳米微粒用于递送核酸类药物,其能够提高核酸类药物的巨噬细胞等抗原提呈细胞的转染效率,降低其对其他非靶细胞的转染效率,对核酸类药物的发展和应用具有重要的意义。
Absstract of: CN119925301A
本发明涉及一种ROS响应型过硫化物生物大分子纳米前药、纳米制剂及其制备方法和应用,属于纳米制剂技术领域。本发明利用ROS响应小分子基团对氢过硫化物进行保护,克服现有的氢过硫化物不稳定的缺点;同时,利用生物大分子作为氢过硫化物的载体,即增加了氢过硫化物的肝靶向性、水溶性及生物安全性,又实现多位点修饰和载药量的可调控;此外本发明纳米制剂反应流程简单,条件温和,有利于临床转化。
Absstract of: CN119925305A
本发明涉及药物制剂技术领域,具体涉及一种积雪草苷纳米结构脂质载体及其制备方法。该纳米结构脂质载体是由水相和油相混匀后均质而成,其中水相是含有乳化剂的溶液,该油相是含有积雪草苷、固体脂质和液体脂质的混合液,通过熔融乳化‑高压均质法制成。本发明制备的积雪草苷纳米结构脂质载体具有粒径小、包封率高和稳定性好的优势,且制备方法简单可控,重复性好,解决了积雪草苷不易溶于水和生物利用度低的难题,为积雪草苷提供了一种可供选择的递送系统。
Absstract of: CN119925588A
本发明涉及生物医药技术领域,公开了基于gE/pORF7双抗原纳米晶与智能相变佐剂的重组带状疱疹疫苗,包括由gE蛋白和pORF7蛋白通过化学键连接形成的双抗原纳米晶,其中gE蛋白构成内核,pORF7蛋白通过动态共价键偶联于所述内核表面;以及包裹于所述双抗原纳米晶外层的智能相变佐剂,所述佐剂由温敏性聚合物载体和包封于其中的免疫刺激分子组成,所述温敏性聚合物载体在25~40℃范围内发生相变。本发明疫苗可同步诱导高滴度中和抗体和长效T细胞免疫,显著提升对潜伏病毒库的清除能力,同时降低接种不良反应风险,适用于老年及免疫缺陷人群的带状疱疹预防。
Absstract of: CN119925303A
本发明提供一种纳米材料及其制备方法,所述所述纳米材料是以白蛋白(BSA)为模板,触发BSA与多酚(TA)的氧化偶联,形成以铜硫化物为核心,白蛋白与多酚为外壳的有机无机杂化纳米材料(TA‑BSA@CuS)。并包裹过表达Gas6的鼻咽癌细胞膜,形成Gas6细胞膜/TA‑BSA@CuS纳米材料,该材料能够有效的抑制肿瘤的肺转移。
Absstract of: CN119931074A
本发明公开了一种纳米金属有机框架化合物及其制备方法和应用。所述纳米金属有机框架化合物包括从内向外依次设置的内核、包覆于内核表面的第一壳层,以及化学修饰并包覆于所述第一壳层表面的第二壳层,所述内核包括铜‑半胱胺纳米颗粒,所述第一壳层包括2‑甲基咪唑锌盐,所述第二壳层包括透明质酸。本发明提供的纳米金属有机框架化合物材料具有光敏特性及酶催化活性,并且可以有效靶向肿瘤细胞。并且整个制备过程简单、环保,利于规模化生产,为癌症的治疗提供了新的思路和方法。
Absstract of: CN119925302A
本发明公开了一种基于褐藻多酚纳米营养载体的制备及应用研究,属于纳米材料的制备技术领域。具体包括:将精氨酸溶于水中,接着加入褐藻多酚,得到混合液;将PEG溶于PBS中,得到PEG溶液;将PEG溶液加入到混合液中进行搅拌,并加入过氧化氢反应,加入乙酸继续反应,经过流水透析、真空干燥得到褐藻多酚纳米粒子。本发明实现了褐藻多酚这类天然多酚在溶解度、稳定性方面的限制,为天然多酚的实际应用提供了有力的技术支撑;所合成的纳米粒子在以脂多糖诱导的巨噬细胞炎症反应中表现出优异的抗炎特性,在DSS诱导的小鼠溃疡性结肠炎展示出优异的抗氧化与抗炎能力,为有效预防溃疡性结肠炎提供了一定的理论基础。
Nº publicación: CN119925584A 06/05/2025
Applicant:
广西大学
Absstract of: CN119925584A
本发明涉及动物疫苗制备技术领域,公开了一种鸡支原体病灭活疫苗的制备方法,包括以下步骤:支原体菌株的培养:将鸡支原体菌株接种至SP4培养基中,培养温度为35~39℃,培养时间为48~72小时,收集支原体菌体;灭活与抗原保护:在支原体悬液中加入灭活剂和抗原保护剂进行灭活与抗原保护反应,反应温度为25~37℃,反应时间为3~6小时;纳米递送系统的制备:通过壳聚糖与海藻酸钠的复合结构制备纳米颗粒递送系统。通过动态灭活与抗原保护协同技术方案,通过在灭活过程中同步引入聚赖氨酸、谷氨酰胺和精氨酸的抗原保护体系,显著避免了灭活剂对支原体抗原表位的破坏。