Efficacy of bleomycin and sirolimus in inhibiting CD31 endothelial cell proliferation in noninvoluting congenital hemangiomas.

Objective: Congenital hemangiomas are rare vascular anomalies that manifest at birth. Noninvoluting congenital hemangiomas present significant clinical challenges due to their persistence and associated complications. The mechanisms underlying congenital hemangiomas remain poorly understood, and current treatments have shown limited efficacy.

Interpretable AI-assisted diagnosis of papillary thyroid cancer cytopathology using graph neural networks and knowledge graphs.

This study presents an interpretable AI-assisted diagnostic approach for papillary thyroid carcinoma (PTC) cytopathology by combining graph neural networks (GNNs) with knowledge graphs (KGs). Routine cytology smears from 281 PTC cases were scanned, labeled, and processed using the Cascade RCNN model to detect pathological cell features, including 45,680 ground-glass nuclei, 712 nuclear grooves, and 116 intranuclear inclusions. By integrating GNNs, the model achieved a mean intersection over union (mIoU) of 56.

Enhancing Long-Term Survival and Self-Renewal of Primary Hepatocytes via Rapid Spheroid Formation Using Rocker System through Co-Culturing with HUVEC Over-Expressing RSPO1.

Background: Porcine primary hepatocytes are vital for liver therapy due to their procurement ease and robust functions. However, they rapidly dedifferentiate in vitro, challenging large-scale maintenance. This study aims to enhance the long-term survival and self-renewal of primary porcine hepatocytes by generating spheroids using a rocker system and optimizing conditions with HUVECs and Roof plate-specific spondin 1 (RSPO1).

Unveiling the research advances of sepsis: pathogenesis, precise intervention and clinical perspective.

Sepsis is a life-threatening multi-organ dysfunction caused by the dysregulated systemic inflammatory and immune responses in the host to an infection. Despite continuous advances in the treatment of sepsis, its high morbidity and mortality seriously challenge global public health. Symptomatic treatments are currently applied to sepsis patients, while precise treatments acting on the individualized etiological and pathogenic factors are scant.

Precisely Targeted Nanoparticles for CRISPR-Cas9 Delivery in Clinical Applications.

Clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9 (CRISPR-Cas9), an emerging gene-editing technology, has recently gained rapidly increasing attention. However, the lack of efficient delivery vectors to deliver CRISPR-Cas9 to specific cells or tissues has hindered the translation of this biotechnology into clinical applications. Chemically synthesized nanoparticles (NPs), as attractive non-viral delivery platforms for CRISPR-Cas9, have been extensively investigated because of their unique characteristics, such as controllable size, high stability, multi-functionality, bio-responsive behavior, biocompatibility, and versatility in chemistry.

Lung dECM matrikine-based hydrogel reverses bleomycin-induced pulmonary fibrosis by suppressing M2 macrophage polarization.

Recent studies have shown promising results using decellularized extracellular matrix (dECM) matrikines-based hydrogel as attractive strategies for preventing and alleviating fibrosis.Porcine lung decellularization and pepsin digestion were used to prepare the lung dECM hydrogel. Proteomic analysis revealed that the lung dECM hydrogel was enriched in glycoproteins, collagens, laminins, fibrinogen, held receptors, and bound growth factors.

Exploring the use of ChatGPT-4o in enhancing career development counseling for medical students: a study protocol.

Background: The advent of pre-trained generative transformers, exemplified by ChatGPT, has significantly impacted medical education, catalysing a wealth of research focused on enhancing educational methodologies. Despite this, the application of ChatGPT in the specific area of career planning for medical students remains relatively unexplored. This study seeks to rigorously evaluate the potential of ChatGPT-4o in facilitating the career planning of medical students, comparing its effectiveness with that of traditional human educators.

Aligned fibrous scaffolds promote directional migration of breast cancer cells caveolin-1/YAP-mediated mechanosensing.

Tumorigenesis and metastasis are highly dependent on the interactions between the tumor and the surrounding microenvironment. In 3D matrix, the fibrous structure of the extracellular matrix (ECM) undergoes dynamic remodeling during tumor progression. In particular, during the late stage of tumor development, the fibers become more aggregated and oriented.

Utilizing decellularized bio-membranes to optimize histopathological embedding of small tissues.

In recent years, minimally invasive biopsy techniques have been widely used to generate small tissue samples that require processing in clinical pathology. However, small paraffin-embedded tissues are prone to loss due to their small size. To prevent the loss of small tissues, researchers have employed nonbiological embedding materials for preembedding, but this approach can lead to cumbersome experimental procedures and increase the chances of tissue loss.

Large-Scale Formation and Long-Term Culture of Hepatocyte Organoids From Streamlined In Vivo Genome-Edited GGTA1 Pigs for Bioartificial Liver Applications.

Hepatocyte transplantation and bioartificial liver (BAL) systems hold significant promise as less invasive alternatives to traditional transplantation, providing crucial temporary support for patients with acute and chronic liver failure. Although human hepatocytes are ideal, their use is limited by ethical concerns and donor availability, leading to the use of porcine hepatocytes in BAL systems due to their functional similarities. Recent advancements in gene-editing technology have improved porcine organ xenotransplantation clinical trials by addressing immune rejection issues.

Physical fitness decline and career paths: a longitudinal study of medical undergraduates.

Introduction: Exercise enhances one's health and competitiveness. A strong physical fitness status can pave the way for a promising future. This study presents the time-based trends in physical fitness indicators-including height, weight, BMI, lung capacity, dash, long-distance running, and standing long jump-among medical undergraduates during their university years.

Targeted Integration of siRNA against Porcine Cytomegalovirus (PCMV) Enhances the Resistance of Porcine Cells to PCMV.

In the world's first pig-to-human cardiac cytomegalovirus (PCMV), xenotransplant and elevated levels of porcine key factors contributing to patient mortality were considered. This has renewed attention on PCMV, a virus widely prevalent in pigs. Currently, there are no effective drugs or vaccines targeting PCMV, and its high detection difficulty poses challenges for prevention and control research.

Visual screening of CRISPR/Cas9 editing efficiency based on micropattern arrays for editing porcine cells.

CRISPR/Cas9 technology, combined with somatic cell nuclear transplantation (SCNT), represents the primary approach to generating gene-edited pigs. The inefficiency in acquiring gene-edited nuclear donors is attributed to low editing and delivery efficiency, both closely linked to the selection of CRISPR/Cas9 forms. However, there is currently no direct method to evaluate the efficiency of CRISPR/Cas9 editing in porcine genomes.

One-step gene knock-out in porcine embryos using recombinant adeno-associated viruses.

Gene-edited pigs have become prominent models for studying human disease mechanisms, gene therapy, and xenotransplantation. CRISPR (clustered regularly interspaced short palindromic repeats)/CRISPR-associated 9 (CRISPR/Cas9) technology is a widely employed tool for generating gene-edited pigs. Nevertheless, delivering CRISPR/Cas9 to pre-implantation embryos has traditionally posed challenges due to its reliance on intricate micromanipulation equipment and specialized techniques, resulting in high costs and time-consuming procedures.

Construction and applications of the EOMA spheroid model of Kaposiform hemangioendothelioma.

Background: Kaposiform hemangioendothelioma (KHE) is a rare intermediate vascular tumor with unclear pathogenesis. Recently, three dimensional (3D) cell spheroids and organoids have played an indispensable role in the study of many diseases, such as infantile hemangioma and non-involuting congenital hemangiomas. However, few research on KHE are based on the 3D model.

Tissue-specific micropattern array chips fabricated via decellularized ECM for 3D cell culture.

Multicellular three-dimensional (3D) in vitro models, such as cell spheroids and organoids, can significantly improve the viability, histomorphology, genotype stability, function and drug metabolism of cells [1], [2], [3]. In general, several culture methods of 3D models, including the hanging drop, microwell-mesh and hydrogel encapsulating methods, have difficulty building a standard mode and controlling the size and arrangement of cell spheroids or organoids, which could severely affect the authenticity and repeatability of experimental results [4]. Another key factor in 3D in vitro models is the extracellular matrix (ECM), which can determine cell viability, proliferation, differentiation, function, migration and organization [5].

The prevention strategies of swine viruses related to xenotransplantation.

Xenotransplantation is considered a solution for the shortage of organs, and pigs play an indispensable role as donors in xenotransplantation. The biosecurity of pigs, especially the zoonotic viruses carried by pigs, has attracted attention. This review introduces several viruses, including porcine endogenous retroviruses that are integrated into the pig genome in a DNA form, herpesviruses that have been proven to clearly affect recipient survival time in previous xenotransplant surgeries, the zoonotic hepatitis E virus, and the widely distributed porcine circoviruses.

The CRISPR/Cas9 System Delivered by Extracellular Vesicles.

Clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated protein (Cas) systems can precisely manipulate DNA sequences to change the characteristics of cells and organs, which has potential in the mechanistic research on genes and the treatment of diseases. However, clinical applications are restricted by the lack of safe, targeted and effective delivery vectors. Extracellular vesicles (EVs) are an attractive delivery platform for CRISPR/Cas9.

Artificial intelligence applications in pathological diagnosis of gastric cancer.

Globally, gastric cancer is the third leading cause of death from tumors. Prevention and individualized treatment are considered to be the best options for reducing the mortality rate of gastric cancer. Artificial intelligence (AI) technology has been widely used in the field of gastric cancer, including diagnosis, prognosis, and image analysis.

Three-Dimensional Microtumor Formation of Infantile Hemangioma-Derived Endothelial Cells for Mechanistic Exploration and Drug Screening.

Infantile hemangioma (IH) is the most prevalent type of vascular tumor in infants. The pathophysiology of IH is unknown. The tissue structure and physiology of two-dimensional cell cultures differ greatly from those in vivo, and spontaneous regression often occurs during tumor formation in nude mice and has severely limited research into the pathogenesis and development of IH.