193 results match your criteria: "Peking Union Medical College (PUMC) Hospital[Affiliation]"

Up to half of hepatocellular carcinoma (HCC) cases are diagnosed at an advanced stage, for which effective treatment options are lacking, resulting in a poor prognosis. Over the past few years, the combination of immune checkpoint inhibitors and anti-angiogenic targeted therapy has proven highly efficacious in treating advanced HCC, significantly extending patients' survival and providing a potential for sequential curative surgery. After sequential curative hepatectomy or liver transplantation following conversion therapy, patients can receive long-term survival benefits.

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Developing Patient-Derived 3D-Bioprinting models of pancreatic cancer.

J Adv Res

September 2024

Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, Peking Union Medical College (PUMC) & Chinese Academy of Medical Sciences (CAMS), Beijing, 100730, China. Electronic address:

Introduction: Pancreatic cancer (PC) remains a challenging malignancy, and adjuvant chemotherapy is critical in improving patient survival post-surgery. However, the intrinsic heterogeneity of PC necessitates personalized treatment strategies, highlighting the need for reliable preclinical models.

Objectives: This study aimed to develop novel patient-derived preclinical PC models using three-dimensional bioprinting (3DP) technology.

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The field of bone tissue engineering (BTE) has witnessed a revolutionary breakthrough with the advent of three-dimensional (3D) bioprinting technology, which is considered an ideal choice for constructing scaffolds for bone regeneration. The key to realizing scaffold biofunctions is the selection and design of an appropriate bioink, and existing bioinks have significant limitations. In this study, a composite bioink based on natural polymers (gelatin and alginate) and liver decellularized extracellular matrix (LdECM) was developed and used to fabricate scaffolds for BTE using 3D bioprinting.

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Background And Objective: Hepatocellular carcinoma (HCC) poses a significant global health burden and ranks as the fifth most prevalent cancer on a global scale. Hepatitis C virus (HCV) infection remains one of the major risk factors for HCC development. HCC is a heterogeneous disease, and the development of HCC caused by HCV is intricate and involves various factors, including genetic susceptibility, viral factors, immune response due to chronic inflammation, alcohol abuse, and metabolic dysfunction associated with fatty liver disease.

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Multicellular 3D bioprinted human gallbladder carcinoma formimicry of tumor microenvironment and intratumoral heterogeneity.

Biofabrication

August 2024

Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC & Chinese Academy of Medical Sciences (CAMS), Beijing, People's Republic of China.

Gallbladder carcinoma (GBC) is a malignant hepatobiliary cancer characterized by an intricate tumor microenvironments (TME) and heterogeneity. The traditional GBC 2D culture models cannot faithfully recapitulate the characteristics of the TME. Three-dimensional (3D) bioprinting enables the establishment of high-throughput and high-fidelity multicellular GBC models.

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Acoustic-holography-patterned primary hepatocytes possess liver functions.

Biomaterials

December 2024

Shenzhen Institute of Advanced Technology, And Key Laboratory of Biomedical Imaging Science and System, Chinese Academy of Sciences, Shenzhen, China. Electronic address:

Acoustic holography (AH), a promising approach for cell patterning, emerges as a powerful tool for constructing novel invitro 3D models that mimic organs and cancers features. However, understanding changes in cell function post-AH remains limited. Furthermore, replicating complex physiological and pathological processes solely with cell lines proves challenging.

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Background: Due to a lack of early diagnosis methods and effective drugs, pancreatic ductal adenocarcinoma (PDAC) has an extremely poor prognosis. DNA methylation, transcriptome expression and gene copy number variation (CNV) have critical relationships with development and progression of various diseases. The purpose of the study was to screen reliable early diagnostic biomarkers and potential drugs based on integrative multiomics analysis.

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Liver fibrosis as a predictor of liver failure and outcome following ALPPS among patients with primary liver cancer.

Sci Rep

July 2024

Department of Liver Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.

The influence of liver fibrosis on the rate of liver regeneration and complications following ALPPS has yet to be fully understood. This study aimed to scrutinize the effects of liver fibrosis on the postoperative complications, and prognosis subsequent to ALPPS. Clinical data were collected from patients with primary liver cancer who underwent ALPPS at Peking Union Medical College Hospital between May 2014 and October 2022.

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Liver bioprinting within a novel support medium with functionalized spheroids, hepatic vein structures, and enhanced post-transplantation vascularization.

Biomaterials

December 2024

Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, OX3 7DQ, UK; The Oxford Suzhou Centre for Advanced Research (OSCAR), University of Oxford, Suzhou, 215123, China. Electronic address:

Cell-laden bioprinting is a promising biofabrication strategy for regenerating bioactive transplants to address organ donor shortages. However, there has been little success in reproducing transplantable artificial organs with multiple distinctive cell types and physiologically relevant architecture. In this study, an omnidirectional printing embedded network (OPEN) is presented as a support medium for embedded 3D printing.

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Occult endometrial cancer in women undergoing hysterectomy for benign indications: a retrospective cohort study in a tertiary hospital in China.

Arch Gynecol Obstet

August 2024

Department of Obstetrics and Gynecology, National Clinical Research Center for Obstetric and Gynecologic Disease, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No.1 Shuaifuyuan Wangfujing, Dongcheng District, Beijing, 100730, People's Republic of China.

Purpose: To evaluate the feasibility of further reducing the incidence of occult endometrial cancer in women undergoing hysterectomy for benign gynecological indications.

Methods: Patients who underwent hysterectomies for presumed benign gynecologic conditions at Peking Union Medical College Hospital were retrospectively identified. Patients with occult endometrial cancer, which was defined as endometrial cancer diagnosed on postoperative histopathology with no preoperative confirmed malignancy, were selected.

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Prognostic value of postoperative anti-thyroglobulin antibody in patients with differentiated thyroid cancer.

Front Endocrinol (Lausanne)

May 2024

Department of Nuclear Medicine, Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences & PUMC, Beijing, China.

Purpose: Postoperative thyroglobulin (Tg) generally serves as a biomarker to monitor the recurrence or persistence of differentiated thyroid cancer (DTC), whereas it constrains to interference from anti-thyroglobulin antibody (TgAb). This study aimed to determine the value of postoperative TgAb as a surrogate for monitoring tumor status in DTCs with positive TgAb after successful radioactive iodine (RAI) remnant ablation.

Methods: We retrospectively enrolled DTC patients with positive (≥40 IU/mL, Roche) postoperative TgAb measurements.

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Purpose: To assess the impact of maternal pre-pregnancy body mass index (BMI) on longitudinal fetal growth, and the potential mediation effect of the maternal fasting plasma glucose in first trimester.

Methods: In this retrospective cohort study, we collected pre-pregnancy BMI data and ultrasound measurements during pregnancy of 3879 singleton pregnant women who underwent antenatal examinations and delivered at Peking Union Medical College Hospital. Generalized estimation equations, linear regression, and logistic regression were used to examine the association between pre-pregnancy BMI with fetal growth and adverse neonatal outcomes.

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Risk stratification for radioactive iodine refractoriness using molecular alterations in distant metastatic differentiated thyroid cancer.

Chin J Cancer Res

February 2024

Department of Nuclear Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences & PUMC, Beijing 100730, China.

Objective: Patients with radioactive iodine-refractory differentiated thyroid cancer (RAIR-DTC) are often diagnosed with delay and constrained to limited treatment options. The correlation between RAI refractoriness and the underlying genetic characteristics has not been extensively studied.

Methods: Adult patients with distant metastatic DTC were enrolled and assigned to undergo next-generation sequencing of a customized 26-gene panel (ThyroLead).

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Early Structural, Biochemical, and Metabolic Responses to Anlotinib in Patients With Progressive Radioactive Iodine Refractory Differentiated Thyroid Cancer.

Endocr Pract

May 2024

Department of Nuclear Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences & PUMC, Beijing 100730, China; Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing 100730, China. Electronic address:

Objective: We aimed to assess the early efficacy of anlotinib in patients with progressive radioactive iodine refractory differentiated thyroid cancer at the structural, biochemical, and metabolic levels.

Methods: Ten eligible patients were prospectively enrolled to receive anlotinib. Their responses were assessed at 6 weeks.

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AEBP1 promotes papillary thyroid cancer progression by activating BMP4 signaling.

Neoplasia

March 2024

Department of Nuclear Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences & PUMC, Beijing 100730, China; Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine, Beijing 100730, China. Electronic address:

Papillary thyroid cancer (PTC) is the most prevalent endocrine cancer worldwide. Approximately 30 % of PTC patients will progress into the advanced or metastatic stage and have a relatively poor prognosis. It is well known that epithelial-mesenchymal transition (EMT) plays a pivotal role in thyroid cancer metastasis, resistance to therapy, and recurrence.

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Characterizing Genetic Alterations Related to Radioiodine Avidity in Metastatic Thyroid Cancer.

J Clin Endocrinol Metab

April 2024

Department of Nuclear Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences & PUMC, Beijing, 100730, China.

Context: Patients with differentiated thyroid cancer (DTC) with distant metastasis (DM) are usually not recognized as radioactive iodine (RAI)-refractory DTC in a timely manner. The elucidation of genetic features related to RAI uptake patterns may shed light on the early recognition of RAI-refractory DTC.

Objective: This work aimed to elucidate the underlying molecular features behind different RAI uptake patterns.

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Methods accurately predicting the responses of colorectal cancer (CRC) and colorectal cancer liver metastasis (CRLM) to personalized chemotherapy remain limited due to tumor heterogeneity. This study introduces an innovative patient-derived CRC and CRLM tumor model for preclinical investigation, utilizing 3d-bioprinting (3DP) technology. Efficient construction of homogeneous in vitro 3D models of CRC/CRLM is achieved through the application of patient-derived primary tumor cells and 3D bioprinting with bioink.

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Article Synopsis
  • Primary liver cancer is a major health concern in China, with hepatocellular carcinoma accounting for 75-85% of cases, ranking as the fourth most common cancer and the second leading cause of cancer-related deaths in the country.
  • The Guidelines for Diagnosis and Treatment of Primary Liver Cancer were first published in 2017 and have been updated due to new research and evidence in the field, leading to the 2022 Edition written by over 100 experts.
  • The updated guidelines aim to promote evidence-based practices to enhance the 5-year survival rate of liver cancer patients in alignment with the "Health China 2030 Blueprint."
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Fusion Oncogenes in Patients With Locally Advanced or Distant Metastatic Differentiated Thyroid Cancer.

J Clin Endocrinol Metab

January 2024

Department of Nuclear Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences & PUMC, Beijing, 100730, China.

Context: Fusion oncogenes are involved in the underlying pathology of advanced differentiated thyroid cancer (DTC), and even the cause of radioactive iodine (RAI)-refractoriness.

Objective: We aimed to investigation between fusion oncogenes and clinicopathological characteristics involving a large-scale cohort of patients with advanced DTC.

Methods: We collected 278 tumor samples from patients with locally advanced (N1b or T4) or distant metastatic DTC.

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Dihydromyricetin Alleviates Ischemic Brain Injury by Antagonizing Pyroptosis in Rats.

Neurotherapeutics

October 2023

Department of Human Anatomy and Histology and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China.

Ischemic stroke is a worldwide disease that seriously threatens human health, and there are few effective drugs to treat it. Dihydromyricetin (DHM) has anti-inflammatory, antioxidant, and antiapoptotic functions. We identified pyroptosis following ischemic stroke.

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