溶剂交换诱导了坚固的湿粘水凝,通过同步的乙醇废除和化疗来治疗固体瘤
Yanlv Chen1,2, Meng Yu3, Menghui Liu1,2,4
1Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, 519000, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|April 6, 2024
概括
一种新的粘合剂水凝结合了乙醇切除和化疗,用于有效的瘤治疗. 这种新的方法提供了强大的粘附性,持续的药物释放和生物相容性,解决了资源有限的环境中的挑战.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 瘤学 治疗学 治疗学
背景情况:
- 由于医疗资源有限,发展中国家的瘤治疗面临重大挑战.
- 目前的治疗策略往往缺乏有效性或不适合资源贫困的环境.
研究的目的:
- 开发一种新型的粘合水凝,用于同时进行乙醇切除和瘤局部化疗.
- 创建一个具有成本效益和易于使用的治疗药物用于瘤治疗.
主要方法:
- 一种聚 (酸-酸) (PGL) 乙醇凝被制备和配方,通过与水的溶剂交换,在现场形成水凝.
- 在湿组织上评估了水凝的粘合性能,评估其排斥水和与组织形成键的能力.
- 在实验室和体内,研究了PGL水凝对药物加载,持续释放和联合治疗效果 (乙醇废除和化疗) 的能力.
主要成果:
- PGL 乙醇凝形成了一个强大的 in situ 水凝,通过共价和非共价相互作用对组织具有强大的湿生物粘合性.
- 水凝表现出良好的药物加载能力和持续的药物释放,无论是体外还是体外.
- 使用PGL水凝进行的联合乙醇除和化疗显著提高了抗瘤疗效.
结论:
- 通过综合治疗方法,PGL水凝衍生材料表现出强大的湿生物粘附性,有效的药物输送和增强的抗瘤疗效.
- 其良好的生物相容性,生物降解性,易于制备和成本效益使其成为各种生物医学应用的有希望的生物粘合剂,特别是在资源有限的环境中.
相关概念视频
The Tumor Microenvironment
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
Enhanced Elimination of Poison
Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
Tumor Immunotherapy
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
Drugs for Treatment of Constipation-Predominant IBS
Pharmacological therapies for IBS-C are designed to alleviate abdominal discomfort and enhance bowel function. In patients with IBS-C, fiber supplements may help soften stools and decrease straining, but may also lead to increased gas production and bloating. Osmotic laxatives like milk of magnesia are frequently used to soften stools and increase stool frequency in IBS-C patients. In addition, two drugs approved for use in severe IBS-C adult cases are linaclotide (Linzess) and lubiprostone...
Curing Methods
Concrete members with a small surface-to-volume ratio are cured by oiling and moistening the forms before casting the concrete member. These forms can be left in place for a prolonged period to prevent moisture loss, and can be wetted if made of a material suitable for wetting. If the forms are removed early, the concrete member is moistened and covered with polythene sheets to maintain moisture. For large horizontal concrete surfaces exposed to dry weather, a temporary covering is suspended...
Extracorporeal Removal of Drugs: Hemoperfusion and Hemofiltration
Hemoperfusion and hemofiltration are critical techniques in medical treatments to eliminate accumulated drugs, metabolites, and electrolytes from the bloodstream. These methods are particularly vital in cases of accidental poisoning and drug overdose.Hemoperfusion involves passing blood through an adsorbent material to remove unwanted substances. The main adsorbents used in hemoperfusion include activated charcoal and Amberlite resins. Activated charcoal can adsorb both polar and nonpolar...


