1.Circadian rhythm in prostate cancer: time to take notice of the clock.
Wei-Zhen ZHU ; Qi-Ying HE ; De-Chao FENG ; Qiang WEI ; Lu YANG
Asian Journal of Andrology 2023;25(2):184-191
The circadian clock is an evolutionary molecular product that is associated with better adaptation to changes in the external environment. Disruption of the circadian rhythm plays a critical role in tumorigenesis of many kinds of cancers, including prostate cancer (PCa). Integrating circadian rhythm into PCa research not only brings a closer understanding of the mechanisms of PCa but also provides new and effective options for the precise treatment of patients with PCa. This review begins with patterns of the circadian clock, highlights the role of the disruption of circadian rhythms in PCa at the epidemiological and molecular levels, and discusses possible new approaches to PCa therapy that target the circadian clock.
Humans
;
Male
;
Carcinogenesis
;
Circadian Clocks/physiology*
;
Circadian Rhythm/physiology*
;
Prostatic Neoplasms/physiopathology*
2.Research Progress of Immune Checkpoint Inhibitor-associated Myocarditis.
Yunwei LIU ; Yanxin CHEN ; Zhimin ZENG ; Anwen LIU
Chinese Journal of Lung Cancer 2021;24(9):668-672
Immune checkpoint inhibitors (ICIs) is a negative regulatory factor antibody, which activates T cells to play an anti-tumor effect in immunotherapy, and can also cause immune-related adverse responses, thereby inducing a series of immune related adverse events (irAEs). Among these irAEs, although the incidence of ICIs-related myocarditis is very low, the fatality rate is significantly higher than other adverse reactions, close to 50%. Clinicians should be vigilant when applying ICIs, but the pathogenesis of ICIs-related myocarditis is still unclear. This article combines the recent research results of ICIs to summarize the mechanism and clinical manifestations of ICIs-related myocarditis, so as to improve clinicians' understanding of the adverse reactions.
.
Biomedical Research/trends*
;
Cardiotoxicity/physiopathology*
;
Humans
;
Immune Checkpoint Inhibitors/therapeutic use*
;
Immunotherapy/adverse effects*
;
Myocarditis/physiopathology*
;
Neoplasms/drug therapy*
3.Application of immune cell infiltration in the diagnosis and prognosis of non-small cell lung cancer.
Huihui WAN ; Zhenhao LIU ; Xiaoxiu TAN ; Guangzhi WANG ; Yong XU ; Lu XIE ; Yong LIN
Chinese Journal of Biotechnology 2020;36(4):740-749
Immune cell infiltration is of great significance for the diagnosis and prognosis of cancer. In this study, we collected gene expression data of non-small cell lung cancer (NSCLC) and normal tissues included in TCGA database, obtained the proportion of 22 immune cells by CIBERSORT tool, and then evaluated the infiltration of immune cells. Subsequently, based on the proportion of 22 immune cells, a classification model of NSCLC tissues and normal tissues was constructed using machine learning methods. The AUC, sensitivity and specificity of classification model built by random forest algorithm reached 0.987, 0.98 and 0.84, respectively. In addition, the AUC, sensitivity and specificity of classification model of lung adenocarcinoma and lung squamous carcinoma tissues constructed by random forest method 0.827, 0.75 and 0.77, respectively. Finally, we constructed a prognosis model of NSCLC by combining the immunocyte score composed of 8 strongly correlated features of 22 immunocyte features screened by LASSO regression with clinical features. After evaluation and verification, C-index reached 0.71 and the calibration curves of three years and five years were well fitted in the prognosis model, which could accurately predict the degree of prognostic risk. This study aims to provide a new strategy for the diagnosis and prognosis of NSCLC based on the classification model and prognosis model established by immune cell infiltration.
Algorithms
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Carcinoma, Non-Small-Cell Lung
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diagnosis
;
physiopathology
;
Humans
;
Lung Neoplasms
;
diagnosis
;
physiopathology
;
Machine Learning
;
Prognosis
4.Expression of tumor-associated vascular insulin receptor in colorectal cancer and its relationship with tumor pathological features.
Zeran YANG ; Xin ZHANG ; Jie MA ; Li JIN ; Xujun HE
Journal of Zhejiang University. Medical sciences 2020;49(6):725-731
OBJECTIVE:
To study the expression of tumor associated vascular insulin receptor (TVIR) in colorectal cancer with or without metabolic syndrome (MS) and its relationship with the pathological features of colorectal cancer.
METHODS:
The expression of TVIR in 220 colorectal cancer specimens was detected by tissue microarray and immunohistochemistry. The relationships between the expression of TVIR and the pathological features (pathological subtypes, histological grade, invasion depth, lymph node metastasis and TNM stage) of colorectal cancer with/without MS were analyzed.
RESULTS:
The insulin receptor expression was observed in colorectal cancer tissue or border area between cancer and normal tissue, but not in normal intestinal tissue. The high-expression rates of TVIR in MS group was remarkably lower than that of non-MS group (21.6%vs. 41.0%,
CONCLUSIONS
s: High-expression of TVIR is associated with aggressive pathological features such as invasion, lymph node metastasis and high TNM stage of colorectal cancer, especially for those patients without MS. TVIR could be a useful biological marker for prognosis of colorectal cancer.
Biomarkers, Tumor/genetics*
;
Colorectal Neoplasms/physiopathology*
;
Gene Expression Regulation, Neoplastic
;
Humans
;
Neoplasm Staging
;
Prognosis
;
Receptor, Insulin/genetics*
5.Tissue factors and venous thromboembolism in cancer patients.
Journal of Zhejiang University. Medical sciences 2020;49(6):772-778
Malignant tumor is one of the important acquired risk factors of venous thromboembolism (VTE). As the transmembrane receptor of coagulation factor Ⅶ and activated coagulation factor Ⅶa
Humans
;
Neoplasms/complications*
;
Risk Factors
;
Thromboplastin/metabolism*
;
Thrombosis
;
Venous Thromboembolism/physiopathology*
6.Expressions of HELQ and RAD51C in endometrial stromal sarcoma and their clinical significance.
Ying LIU ; Yu ZHANG ; Yan TIAN
Journal of Zhejiang University. Medical sciences 2020;40(7):936-941
OBJECTIVE:
To observe the expression of HELQ and RAD51C in normal endometrial and endometrial stromal sarcoma (ESS) and analyze their correlation with the clinical features of the patients.
METHODS:
The expressions of HELQ and RAD51C proteins were detected by immunohistochemical staining in normal endometrial tissues (14 cases) and tumor tissues from patients with ESS (37 cases) treated in Hunan Provincial Cancer Hospital from January, 2013 to December, 2016. The correlations of the expressions of the two proteins with the patients'age, FIGO staging, tissue type, tumor size, and lymph node metastasis were analyzed.
RESULTS:
Immunohistochemical staining showed that the expressions of HELQ and RAD51C were both decreased in ESS patients compared with the normal group, and there was a positive correlation between HELQ and RAD51C expression ( < 0.05). HELQ expression in ESS was correlated with the tumor size and type. The expressions of HELQ and RAD51C were not correlated with the patients' age, FIGO stage and status of lymph node metastasis ( > 0.05).
CONCLUSIONS
Homologous recombination- directed DNA repair involving HELQ and RAD51C may participate in the occurrence and progression of ESS.
DNA Helicases
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genetics
;
DNA-Binding Proteins
;
genetics
;
Endometrial Neoplasms
;
diagnosis
;
physiopathology
;
Endometrium
;
physiopathology
;
Female
;
Gene Expression Regulation, Neoplastic
;
Humans
;
Lymphatic Metastasis
;
physiopathology
;
Sarcoma, Endometrial Stromal
;
physiopathology
7.Emerging roles of Hippo signaling pathway in gastrointestinal cancers and its molecular mechanisms.
Yaoping HUANG ; Feng YANG ; Tianhua ZHOU ; Shanshan XIE
Journal of Zhejiang University. Medical sciences 2020;49(1):35-43
Hippo signaling pathway is highly conservative in evolution. MST1/2, LATS1/2, and the effector protein YAP/TAZ are the core members of this signaling pathway in mammalian cells. There have been many studies on YAP/TAZ and its downstream, however, the upstream regulatory factors of the Hippo signaling pathway remain unclear, and become one of the hot research directions of this pathway at present. In addition, Hippo signaling pathway can cross-talk with other signaling pathways such as Wnt and Notch signaling pathways, and plays an important role in controlling organ size, maintaining tissue homeostasis, and promoting tissue repair and regeneration. Abnormal Hippo signaling pathway may lead to the occurrence of a variety of tumors, especially gastrointestinal cancers such as liver cancer, colorectal cancer and gastric cancer. The abnormal expression of its members in gastrointestinal cancers is related to cancer cell proliferation, apoptosis, invasion and migration. Hippo signaling pathway is vital for liver repair and regeneration. Its inactivation will lead to the occurrence of primary liver cancer. The mechanism of YAP in liver cancer mainly depends on TEAD-mediated gene transcription. Hippo signaling pathway is also important for maintaining intestinal homeostasis, and its imbalance can lead to the occurrence and recurrence of colorectal cancer. In primary and metastatic gastric cancer, the expression of YAP/TAZ is significantly up-regulated, but the specific molecular mechanism is unclear. This article summarizes the recent progress on Hippo signaling pathway and its upstream regulatory factors, its roles in the development of gastrointestinal cancers and related molecular mechanisms; and also discusses the future research directions of Hippo signaling pathway.
Apoptosis
;
physiology
;
Cell Proliferation
;
physiology
;
Gastrointestinal Neoplasms
;
physiopathology
;
Humans
;
Signal Transduction
8.Research progress on neutrophil extracellular traps in tumor.
Journal of Zhejiang University. Medical sciences 2020;49(1):107-112
Neutrophil extracellular traps(NET)is neutrophil-derived extracellular fiber web-like structure, composed of DNA scaffold studded with various active proteins. In addition to its bactericidal effect, NET is closely related to various diseases including immune disease, thrombosis and tumor. Recently, lots of researches have shown that NET is highly expressed in a variety of tumors, tumor cells and microenvironment can promote NET formation, whereas NET participates in tumor progression as well, and is closely related to tumor proliferation, metastasis and thrombosis, which provides new clinical thinking in tumor diagnosis as well as treatment indeed. This review will focus on the research progress of NET and tumor, meanwhile make a prospect for its clinical application value.
Extracellular Traps
;
genetics
;
Humans
;
Neoplasms
;
physiopathology
;
Neutrophils
;
pathology
;
Tumor Microenvironment
9.Application of Enhanced Recovery after Surgery in Interventional Treatment of Tracheal Malignant Tumor.
Hongwu WANG ; Qinghao CHENG ; Lingyu KONG ; Li SHEN
Chinese Journal of Lung Cancer 2019;22(1):1-5
Currently, enhanced recovery after surgery (ERAS) has been widely accepted by surgery and anesthesiology all over the world, and applied in colorectal surgery, gynecology, liver surgery, breast surgery, urology and spinal surgery. But ERAS are rarely used in the field of interventional bronchoscopy. In recent years, more and more researchers have begun to explore the application of ERAS in bronchoscopic interventional therapy. This article discussed that preoperative preparation, anesthesia, intraoperative operation, postoperative observation and other aspects can influence interventional bronchoscopy.
.
Anesthesia
;
methods
;
Bronchoscopy
;
methods
;
Humans
;
Length of Stay
;
Outcome Assessment (Health Care)
;
Perioperative Care
;
methods
;
Recovery of Function
;
Tracheal Neoplasms
;
physiopathology
;
surgery
;
Tracheotomy
;
methods
10.Identification of differentially expressed genes in peripheral blood mononuclear cells of patients with hepatocellular carcinoma and its regulatory network analysis.
Journal of Zhejiang University. Medical sciences 2019;48(2):148-157
OBJECTIVE:
To identify the differentially expressed genes (DEGs) in peripheral blood mononuclear cells (PBMC) of patients with hepatocellular carcinoma (HCC) and to analyze their regulatory network.
METHODS:
The DEGs in PBMCs of HCC patients were screened based on GEO database. The functional enrichment analysis and interaction analysis were carried out for DEGs. MCODE algorithm was used to screen core genes of DEGs, and the mirDIP and starBase online tools were used to predict upstream miRNAs and lncRNAs of the core genes.
RESULTS:
A total of 265 DEGs with a high credibility were identified, which were mainly enriched in the biological activity, such as regulation of cell proliferation, metabolic regulation, cell communication and signaling, and inflammatory diseases according to Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway, and the two analyses were correlated. Four diagnostic candidate genes were identified, including FUS RNA binding protein, C-X-C motif chemokine ligand 8, cullin 1 and RNA polymerase Ⅱ subunit H. Subsequently, 10 miRNAs, 1 lncRNAs and 38 circRNAs were predicted, and finally a lncRNA/circRNA-miRNA-mRNA-pathway regulatory networks was constructed.
CONCLUSIONS
The diagnostic candidate genes and its regulatory network in HCC PBMC have been identified based on data mining, which could provide potential tumor biomarkers for early diagnosis and treatment of HCC.
Carcinoma, Hepatocellular
;
physiopathology
;
Gene Expression Regulation, Neoplastic
;
Gene Regulatory Networks
;
Humans
;
Leukocytes, Mononuclear
;
metabolism
;
Liver Neoplasms
;
physiopathology

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