Background: Colorectal cancer (CRC) is one of the most prevalent cancers worldwide. Despite advancements in therapeutic methodologies, it still causes a high rate of patient mortality. CD8 tissue-resident memory T (TRM) cells are strategically positioned to mediate effective anti-tumor responses.
View Article and Find Full Text PDFIn this study, we comprehensively charted the cellular landscape of colorectal cancer (CRC) and well-matched liver metastatic CRC using single-cell and spatial transcriptome RNA sequencing. We generated 41,892 CD45 nonimmune cells and 196,473 CD45 immune cells from 27 samples of six CRC patients, and found that CD8_CXCL13 and CD4_CXCL13 subsets increased significantly in liver metastatic samples that exhibited high proliferation ability and tumor-activating characterization, contributing to better prognosis of patients. Distinct fibroblast profiles were observed in primary and liver metastatic tumors.
View Article and Find Full Text PDFBackground: The Notch signaling mutation is associated with enhanced anti-tumor immune response in colorectal cancer (CRC). In this study, we aim to investigate the underlying mechanism and the predictive potential of Notch signaling mutation for responding to immunotherapy in CRC.
Methods: We analyzed the immune response associated genes in CRC with Notch signaling mutation concomitant with or without microsatellite instability (MSI) using TCGA dataset and investigated the mutation profiles of the Notch signaling pathway using cBioPortal.
The ubiquitin-proteasome system (UPS) is an adenosine triphosphate (ATP)-dependent enzymatic machinery that targets substrate proteins for degradation by the 26S proteasome by tagging them with an isopeptide chain composed of covalently linked molecules of ubiquitin, a small chaperone protein. UPS is the main pathway of protein degradation in eukaryotic cells, and plays an important role in spermatogenesis. The dysfunction of various ubiquitin systems results in impaired sperm development with abnormal morphology and function, which is highly associated with male infertility.
View Article and Find Full Text PDFBull Environ Contam Toxicol
June 2011
63 samples of yak milk were analyzed by the method of ICP-AES of metal elements for aluminum, cadmium, silver and chromium which can reveal the exposed level around yak farm. The metal elements of yak milk were compared to reference data for cow milk, sheep milk, buffalo milk and goat milk. In addition, the concentration was compared to PTWI (provisional tolerable weekly intake) established by the JECFA (WHO/FAO) for metal intake/body weight per week of cadmium, aluminum, and chromium level was compared to EVM (Expert Group on Vitamins and Minerals) guidance level, while the threshold of silver was lacking according to the authority standard.
View Article and Find Full Text PDFJ Gastroenterol Hepatol
March 2011
Background And Aim: Exportin 4 (XPO4) is a recently-discovered candidate tumor-suppressor gene identified in a liver cancer mouse model. To investigate the role of XPO4 in hepatocellular carcinoma (HCC) pathogenesis, we determined XPO4 expression and its correlation to prognosis in human primary HCC.
Methods: The XPO4 mRNA transcription level in HCC cell lines and tissue samples were detected by real-time quantitative polymerase chain reaction (PCR).
In this study, we characterized the intratumoral expression of IL-17 and CD8(+) TILs in gastric adenocarcinoma patients after resection and determined the correlation between the survival probability of gastric adenocarcinoma patients and the expression of IL-17 in tumor. Expression of IL-17 and CD8 was assessed by immunohistochemistry, and the prognostic effects of intratumoral IL-17 expression and CD8(+) TILs were evaluated by Cox regression and Kaplan-Meier analysis. Immunohistochemical detection revealed the presence of IL-17 and CD8(+) cells in gastric adenocarcinoma tissue samples (90.
View Article and Find Full Text PDFThe choice of the tumor antigen preparation used for dendritic cell (DC) loading is important for optimizing DC vaccines. In the present study, we compared DCs pulsed with hepatocellular carcinoma (HCC) total RNA or cell lysates for their capacity to activate T cells. We showed here that HCC total RNA pulsed-DCs induced effector T lymphocyte responses which showed higher killing ability to HCC cell lines, as well as higher frequency of IFN-γ producing of CD4+ and CD8+ T cells when compared with lysate pulsed-DCs.
View Article and Find Full Text PDFWorld J Gastroenterol
September 2010
Aim: To determine the role of epidermal growth factor-like repeats and discoidin I-like domains 3 (EDIL3) in pathogenesis of hepatocellular carcinoma (HCC) by investigating the EDIL3 expression in HCC and its prognostic value for HCC.
Methods: EDIL3 expression was detected in 101 HCC surgical tissue samples with immunohistochemistry method, and its relation with clinicopathologic features and prognosis of HCC patients was analyzed.
Results: EDIL3 was highly expressed in 48.
Background And Objective: Cytokine-induced killer (CIK) cells and autologous dendritic cells-CIK (DC-CIK) cells co-cultured with autologous dendritic cells (DCs) and CIK cells are commonly used for immunotherapy recently. We compared the anti-tumor immune response of CIK cells, autologous DC-CIK cells, and semi-allogeneic DC-CIK cells to explore a more effective anti-tumor adoptive immunotherapy approach.
Methods: Peripheral monocytes were isolated from patients with renal carcinoma, lung cancer, or maxillary squamous cell carcinoma and their healthy adult children.
Immunotherapy, especially using dendritic cells (DCs)-based vaccine, appears promising in the treatment of hepatocellular carcinoma (HCC) following surgery. However, the therapeutic efficacy of current DC vaccines loaded with HCC antigen is limited in clinical practice. One important reason might be that the DC vaccines for the treatment of HCC were not aimed at targeting the hepatocellular carcinoma cancer stem cells (HCCCSCs).
View Article and Find Full Text PDFWorld J Gastroenterol
October 2009
Aim: To investigate the expression of Neurensin-2 (NRSN2) in hepatocellular carcinoma (HCC) and its prognostic values in predicting survival.
Methods: The expression and prognostic significance of NRSN2 in HCC was examined by performing immunohistochemical analysis using a total of 110 HCC clinical tissue samples, and Western blotting analysis to further confirm the result.
Results: Decreased NRSN2 expression was shown in 70.
The composition and distribution of aliphatic (n-alkanes) and polyaromatic hydrocarbons (PAHs) were measured for the surface sediments collected at 25 sites from Jiaozhou Bay, Qingdao, China. Total n-alkanes and PAH concentrations ranged from 0.5 to 8.
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