245 results match your criteria: "The Fourth Affiliated Hospital of Zhejiang University[Affiliation]"

Colorectal cancer is a highly aggressive malignant tumor that primarily affects the digestive system. It is frequently diagnosed at an advanced stage. Cuproptosis is a copper-dependent form cell death mechanism, distinct from all other known pathways underlying cell death, tumor progression, prognosis, and immune response.

View Article and Find Full Text PDF

NudCL2 is required for cytokinesis by stabilizing RCC2 with Hsp90 at the midbody.

Protein Cell

October 2024

Department of Cell Biology, Institute of Gastroenterology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China.

Cytokinesis is required for faithful division of cytoplasmic components and duplicated nuclei into two daughter cells. Midbody, a protein-dense organelle that forms at the intercellular bridge, is indispensable for successful cytokinesis. However, the regulatory mechanism of cytokinesis at the midbody still remains elusive.

View Article and Find Full Text PDF

[Treatment status of tyrosine kinase inhibitor for newly-diagnosed chronic myeloid leukemia: a domestic multi-centre retrospective real-world study].

Zhonghua Xue Ye Xue Za Zhi

March 2024

Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China.

To retrospectively analyze the treatment status of tyrosine kinase inhibitors (TKI) in newly diagnosed patients with chronic myeloid leukemia (CML) in China. Data of chronic phase (CP) and accelerated phase (AP) CML patients diagnosed from January 2006 to December 2022 from 77 centers, ≥18 years old, and receiving initial imatinib, nilotinib, dasatinib or flumatinib-therapy within 6 months after diagnosis in China with complete data were retrospectively interrogated. The choice of initial TKI, current TKI medications, treatment switch and reasons, treatment responses and outcomes as well as the variables associated with them were analyzed.

View Article and Find Full Text PDF

Background: Gastric cancer (GC) is a common and aggressive type of cancer worldwide. Despite recent advancements in its treatment, the prognosis for patients with GC remains poor. Understanding the mechanisms of cell death in GC, particularly those related to mitochondrial function, is crucial for its development and progression.

View Article and Find Full Text PDF

This study prepared and evaluated polymeric polybutylcyanoacrylate (PBCA) nanoparticles (NPs) that can be used as a new agent for contrast-enhanced intravascular ultrasound (IVUS) imaging with drug delivery capacity. The nanoformulation was successfully developed using suspension polymerisation and characterised in terms of size, size distribution, zeta potential, morphology, stability, toxicity effects, imaging effects and drug release study. The results showed that the nanoparticles were round and hollow, with a particle diameter of 215.

View Article and Find Full Text PDF

SAFB restricts contact domain boundaries associated with L1 chimeric transcription.

Mol Cell

May 2024

Tsinghua University-Peking University Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China. Electronic address:

Article Synopsis
  • Long interspersed element-1 (LINE-1 or L1) makes up 17% of the human genome and is known for generating genetic variations and potentially causing diseases, yet its regulatory mechanisms and functions are not well understood.* -
  • This study reveals that L1 can attract RNA polymerase II (RNA Pol II), produce L1 chimeric transcripts, and establish domain boundaries within the genome, with a nuclear protein called SAFB acting as a regulator by inhibiting the activity of active L1s.* -
  • The research suggests that the formation of these domain boundaries requires transcription from L1 and that L1 has played a role in the evolution of species-specific genome organization, highlighting its significance in gene
View Article and Find Full Text PDF

Cells within tissues are subject to various mechanical forces, including hydrostatic pressure, shear stress, compression, and tension. These mechanical stimuli can be converted into biochemical signals through mechanoreceptors or cytoskeleton-dependent response processes, shaping the microenvironment and maintaining cellular physiological balance. Several studies have demonstrated the roles of Yes-associated protein (YAP) and its homolog transcriptional coactivator with PDZ-binding motif (TAZ) as mechanotransducers, exerting dynamic influence on cellular phenotypes including differentiation and disease pathogenesis.

View Article and Find Full Text PDF

The impact of maternal age on aneuploidy in oocytes: Reproductive consequences, molecular mechanisms, and future directions.

Ageing Res Rev

June 2024

Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China; Shanghai Key Laboratory of Reproduction and Development, Shanghai, China; Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences (No. 2019RU056), Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China; Department of Obstetrics and Gynecology, International Institutes of Medicine, the Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, China; Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China. Electronic address:

Age-related aneuploidy in human oocytes is a major factor contributing to decreased fertility and adverse reproductive outcomes. As females age, their oocytes are more prone to meiotic chromosome segregation errors, leading primarily to aneuploidy. Elevated aneuploidy rates have also been observed in oocytes from very young, prepubertal conceptions.

View Article and Find Full Text PDF

Maternal gut microbiota in the health of mothers and offspring: from the perspective of immunology.

Front Immunol

March 2024

Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.

Due to the physiological alteration during pregnancy, maternal gut microbiota changes following the metabolic processes. Recent studies have revealed that maternal gut microbiota is closely associated with the immune microenvironment in utero during pregnancy and plays a vital role in specific pregnancy complications, including preeclampsia, gestational diabetes, preterm birth and recurrent miscarriages. Some other evidence has also shown that aberrant maternal gut microbiota increases the risk of various diseases in the offspring, such as allergic and neurodevelopmental disorders, through the immune alignment between mother and fetus and the possible intrauterine microbiota.

View Article and Find Full Text PDF

SNX8 enables lysosome reformation and reverses lysosomal storage disorder.

Nat Commun

March 2024

The MOE Key Laboratory of Biosystems Homeostasis & Protection and Zhejiang Provincial Key Laboratory of Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, 310058, Hangzhou, Zhejiang, China.

Article Synopsis
  • Lysosomal Storage Disorders (LSDs) are genetic diseases caused by mutations affecting lysosome function, leading to enlarged lysosomes and storage issues, with no current effective routine treatments.
  • The protein SNX8 is crucial for the process of lysosome reformation, and its loss can result in LSD-like symptoms; however, increasing SNX8 levels can alleviate these symptoms in cells and mice.
  • Researchers discovered small molecules that enhance the binding of SNX8 to lysosomes and showed that these compounds can reverse LSD symptoms in both human cells and mice, suggesting potential new treatments for these disorders.
View Article and Find Full Text PDF

Background: Current data supporting the use of prone positioning (PP) during venovenous extracorporeal membrane oxygenation (VV-ECMO) in patients with acute respiratory distress syndrome (ARDS) are limited. This prospective randomized controlled study aimed to determine whether PP implemented within 24 hours of ECMO can improve survival in these patients.

Methods: From June 2021 to July 2023, 97 adult patients receiving VV-ECMO for ARDS in three centers were enrolled and 1:1 randomized into PP (n=49) and control groups (n=48).

View Article and Find Full Text PDF

Regulatory T (TREG) cells develop via a program orchestrated by the transcription factor forkhead box protein P3 (FOXP3). Maintenance of the TREG cell lineage relies on sustained FOXP3 transcription via a mechanism involving demethylation of cytosine-phosphate-guanine (CpG)-rich elements at conserved non-coding sequences (CNS) in the FOXP3 locus. This cytosine demethylation is catalyzed by the ten-eleven translocation (TET) family of dioxygenases, and it involves a redox reaction that uses iron (Fe) as an essential cofactor.

View Article and Find Full Text PDF

Comparison of the Efficacy Among Nilotinib, Dasatinib, Flumatinib and Imatinib in Newly Diagnosed Chronic-Phase Chronic Myeloid Leukemia Patients: A Real-World Multi-Center Retrospective Study.

Clin Lymphoma Myeloma Leuk

June 2024

Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China.; Peking University People's Hospital, Qingdao, China.. Electronic address:

Article Synopsis
  • A study was conducted to compare therapy responses and outcomes among four medications (nilotinib, dasatinib, flumatinib, and imatinib) for newly diagnosed chronic myeloid leukemia (CML) in a practical setting.
  • Data from 2,496 patients across 77 centers in China were analyzed, and results showed that the newer treatments had similar effectiveness in terms of overall survival and progression-free survival, but better initial responses and failure-free survival compared to imatinib.
  • The findings suggest that while nilotinib, dasatinib, and flumatinib are more effective in achieving early treatment responses, all four medications ultimately offer comparable long-term survival outcomes, which can help
View Article and Find Full Text PDF

Background: Acute respiratory distress syndrome (ARDS) is a respiratory failure syndrome characterized by hypoxemia and changes in the respiratory system. ARDS is the most common cause of death in COVID-19 deaths was ARDS. In this study, we explored the role of miR-223 in exosomes in ARDS.

View Article and Find Full Text PDF

The hypoxic microenvironment in osteosarcoma inevitably compromises the antitumor effect and local bone defect repair, suggesting an urgent need for sustained oxygenation in the tumor. The currently reported oxygen-releasing materials have short oxygen-releasing cycles, harmful products, and limited antitumor effects simply by improving hypoxia. Therefore, the PCL/nHA/MgO/PDA-integrated oxygen-releasing scaffold with a good photothermal therapy effect was innovatively constructed in this work to achieve tumor cell killing and bone regeneration functions simultaneously.

View Article and Find Full Text PDF

Background: Recent research linked changes in the gut microbiota and serum metabolite concentrations to intracerebral hemorrhage (ICH). However, the potential causal relationship remained unclear. Therefore, the current study aims to estimate the effects of genetically predicted causality between gut microbiota, serum metabolites, and ICH.

View Article and Find Full Text PDF

Genetic and Epigenetic Landscape for Drug Development in Polycystic Ovary Syndrome.

Endocr Rev

July 2024

Reproductive Medicine Center, Zhongshan Hospital, Fudan University, Shanghai 200032, China.

The treatment of polycystic ovary syndrome (PCOS) faces challenges as all known treatments are merely symptomatic. The US Food and Drug Administration has not approved any drug specifically for treating PCOS. As the significance of genetics and epigenetics rises in drug development, their pivotal insights have greatly enhanced the efficacy and success of drug target discovery and validation, offering promise for guiding the advancement of PCOS treatments.

View Article and Find Full Text PDF

The various tissue damages are a severe problem to human health. The limited human tissue regenerate ability requires suitable biomaterials to help damage tissue repair and regeneration. Therefore, many researchers devoted themselves to exploring biomaterials suitable for tissue repair and regeneration.

View Article and Find Full Text PDF

Inducible RNA targeting and N6-methyladenosine editing by a split-Cas13 architecture.

J Mol Cell Biol

July 2024

Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu 610041, China.

View Article and Find Full Text PDF

Red blood cells in biology and translational medicine: natural vehicle inspires new biomedical applications.

Theranostics

January 2024

Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China, 310009.

Red blood cells (RBCs) are the most abundant cell type in the blood, and play a critical role in oxygen transport. With the development of nanobiotechnology and synthetic biology, scientists have found multiple ways to take advantage of the characteristics of RBCs, such as their long circulation time, to construct universal RBCs, develop drug delivery systems, and transform cell therapies for cancer and other diseases. This article reviews the component and aging mystery of RBCs, the methods for the applied universal RBCs, and the application prospects of RBCs, such as the engineering modification of RBCs used in cytopharmaceuticals for drug delivery and immunotherapy.

View Article and Find Full Text PDF

Airway epithelial cGAS inhibits LPS-induced acute lung injury through CREB signaling.

Cell Death Dis

December 2023

Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.

Increased levels of cytosolic DNA in lung tissues play an important role in acute lung injury. However, the detailed mechanisms involved remain elusive. Here, we found that cyclic GMP-AMP synthase (cGAS, a cytosolic DNA sensor) expression was increased in airway epithelium in response to increased cytosolic DNA.

View Article and Find Full Text PDF

RNA-based modulation of macrophage-mediated efferocytosis potentiates antitumor immunity in colorectal cancer.

J Control Release

February 2024

Cancer Center, Zhejiang University, Hangzhou 310058, China; Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou 310058, China; Center for Medical Research and Innovation in Digestive System Tumors, Ministry of Education, Hangzhou, Zhejiang 310020, China. Electronic address:

Article Synopsis
  • - Tumor-associated macrophages help tumors grow and spread by clearing dead cells, which aids in immune evasion in colorectal cancers.
  • - The researchers propose using RNA therapy to inhibit this macrophage function, specifically targeting the receptor MerTK using lipid nanoparticles that deliver siRNA.
  • - The treatment leads to increased dead cell buildup and immune activation in tumors, reducing growth and improving survival in models of colorectal cancer, especially when combined with immune checkpoint therapy.
View Article and Find Full Text PDF

Background: Previous studies showed that there are gender disparities in various respects of acute myocardial infarction (AMI), including risk factors, symptoms, and outcomes. However, few of them noticed the gender disparities in patients' decision about the management of AMI, which might also be associated with the outcome.

Aims: To identify gender disparities in patients' decisions about the management of myocardial infarction.

View Article and Find Full Text PDF

Malignant proliferation and abundant angiogenesis are major causes of lung adenocarcinoma (LUAD) with high morbidity and mortality. Therefore, the exploration of the key regulatory mechanisms of malignant proliferation and angiogenesis in LUAD provides an opportunity for the development of targeted precision therapy. In this study, we found that the high expression of ATPase family AAA domain-containing protein 3A (ATAD3A) in LUAD was positively associated with the poor survival of patients, while its high expression was positively associated with the angiogenesis of LUAD.

View Article and Find Full Text PDF