Surgery is one of the main effective strategies for the treatment of solid tumors, but high postoperative recurrence is also the main cause of death in current cancer therapy. The prevention of postoperative hepatocellular carcinoma (HCC) recurrence is a clinical problem that needs to be solved urgently. At present, there are still some problems to be solved, such as, how to achieve free drugs to target the site of surgical resection; develop a strategy for the simultaneous administration of multiple drugs to inhibit postoperative recurrence; and provide the appropriate animal model that mimics the process of postoperative HCC recurrence. In this study, we used a facile and reproducible method to successfully prepare amphiphilic Janus nanoparticles (JNPs). In order to improve targeting of the JNPs to residual HCC cells after surgery, we modified the side of gold nanorods (GNRs) with lactobionic acid (LA), thus creating LA-JNPs. This provided an active and targeted co-delivery system for hydrophilic and hydrophobic drugs in separate rooms, thus avoiding mutual effects. Next, we established two models to simulate postoperative HCC recurrence: a subcutaneous postoperative recurrence model based on patient-derived tumor xenograft (PDX) tissues and a postoperative recurrence model of orthotopic HCC. By applying these models, the enhanced permeability and retention effect (EPR) based tumor targeting and LA based active targeting can jointly promote the enrichment and uptake of JNPs at tumor site. LA-JNPs represented an efficient targeting system for the co-delivery of Sorafenib/Doxorubicin with an optimized anti-recurrence effect and significantly improved the survival of mice during treatment for postoperative recurrence.
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http://dx.doi.org/10.1016/j.biomaterials.2022.121362 | DOI Listing |
Eur J Med Res
December 2024
Department of Neurosurgery, Neuromedicine Center, Beijing Shijitan Hospital, Capital Medical University, No. 10, Tieyi Road, Yangfangdian, Haidian District, Beijing, 100038, People's Republic of China.
Background: Full-endoscopic microvascular decompression (fE-MVD) is an emerging treatment option for trigeminal neuralgia (TN). However, the risk factors associated with postoperative recurrence of TN after fE-MVD procedure remain controversial. The aim of the present study was to summarize the surgical technique of fE-MVD for the treatment of TN and to develop a predictive model for recurrence at 1 year postoperatively based on independent risk factors.
View Article and Find Full Text PDFZhonghua Wei Chang Wai Ke Za Zhi
December 2024
Department of Gastroenterology, Dongguan Children's Hospital Affiliated to Guangdong Medical University, Dongguan Eighth People's Hospital, Dongguan523000, China.
To evaluate the clinical efficacy of modified endoscopic mucosal resection (EMR) in the management of early gastrointestinal lesions. Upon endoscopic identification of the lesion, normal saline is injected into the submucosa to establish a fluid cushion, which elevates the lesion's mucosa. Methylene blue may also be applied to improve visualization of the relationship between the submucosa and muscular layer.
View Article and Find Full Text PDFZhonghua Wei Chang Wai Ke Za Zhi
December 2024
Department of General Surgery, the Army Medical Center (Daping Hospital), Chongqing400042, China.
Although the surgical treatment of slow transit constipation (STC) has been around for over a century, the choice of surgical method is still controversial. Specifically, the two most widely used operations in the world are total colectomy ileorectostomy (TC-IRA) and subtotal colectomy. Subtotal colectomy offers many methods for anastomosis, including ileocecal and cecorectal anastomoses and so on.
View Article and Find Full Text PDFZhonghua Wei Chang Wai Ke Za Zhi
December 2024
Department of Colorectal Surgery, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing210029, China.
Horseshoe anal fistula is one of the most challenging subtypes of complex anal fistulas, closely related to the failure of anal fistula surgery and postoperative recurrence. Accurate preoperative assessment, correct classification, and appropriate surgical plans are crucial for improving treatment efficacy. This article primarily explores the clinical classification of horseshoe anal fistulas and the applicability of mainstream surgical techniques in different types of horseshoe anal fistulas, focusing on their cure rates, recurrence rates, and fecal continence, to assist surgeons to make reasonable surgical plans when treating horseshoe anal fistulas.
View Article and Find Full Text PDFEur J Pharmacol
December 2024
School of Pharmacy, Bengbu Medical University, Bengbu, China; Anhui Province Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu, China. Electronic address:
In recent decades, significant advancements have been achieved in non-small cell lung cancer (NSCLC) treatment. However, drug resistance, postoperative recurrence, distant metastasis, and other critical issues arise during NSCLC treatment. Natural products play a crucial role in the development of anti-tumor drugs.
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