The pregnane X receptor (PXR) is an important regulator of hepatocellular carcinoma cellular resistance to antitumor drugs. Activation of PXR was modulated by the co-regulators. The target protein for the Xenopus plus end-directed kinesin-like protein (Xklp2) known as TPX2 that was previously considered as a tubulin regulator, also functions as the regulator of some transcription factors and pro-oncogenes in human malignances.
View Article and Find Full Text PDFIncreasing evidence indicates that the oncoprotein murine double minute (MDM2) binding protein (MTBP) can be considered a pro-oncogene of human malignancies; however, its function and mechanisms in hepatocellular carcinoma (HCC) are still not clear. In the present work, our results demonstrate that MTBP could function as a co-activator of transcription factor E26 transformation-specific sequence (ETS-1), which plays an important role in HCC cell proliferation and/or metastasis and promotes proliferation of HCC cells. Using luciferase and real-time polymerase chain reaction (qPCR) assays, MTBP was found to enhance the transcription factor activation of ETS-1.
View Article and Find Full Text PDFBackground: Orthotopic liver transplantation (OLT) is a life-saving option for patients with hepatocellular carcinoma (HCC), but the expanded OLT criteria remain controversial.
Objective: The study aimed to explore whether expanded OLT criteria can be applied to Chinese cirrhotic patients with HCC.
Methods: This retrospective study analyzed risk factors for HCC recurrence and death and compared patients' tumor characteristics and outcomes in groups of Milan, "Up-to-seven," and Hangzhou criteria, and groups between met and unmet the combinative criteria of "Up-to-seven" and AFP of < 1000 ng/mL.
Zhongguo Shi Yan Xue Ye Xue Za Zhi
February 2022
Objective: To study the expression profiles changes of miRNA in apheresis platelets after 1, 3 and 5 days of storage.
Methods: The apheresis platelets were collected from 20 volunteer blood donors. After mixing fully, the platelets were stored in a shaker with (22±2) ℃ horizontal oscillation.
Whether platelet (PLT) microRNA (miRNA) profiles are affected by pathogen reduction technology (PRT) using vitamin B and ultraviolet-B (VB-PRT) remains unclear. Samples from VB-PRT-treated (experimental group, E_) and untreated (control group, C_) apheresis PLTs were taken on days 1, 3 and 5 of storage, designated as E_1, E_3, E_5, C_1, C_3 and C_5, respectively. The miRNA expression profiles were assessed by DNA Nano Ball (DNB) sequencing technology, and verified by quantitive real-time fluorescence quantitative PCR (qRT-PCR).
View Article and Find Full Text PDFZhonghua Yi Xue Yi Chuan Xue Za Zhi
September 2020
Objective: To analyze the action of miRNA-326 on its target gene BCL-XL and the molecular mechanism of platelet apoptosis regulated by miRNAs.
Methods: Dual-luciferase vectors containing respectively the wild-type and mutant 3'-untranslated region (3'UTR) fragments of the BCL-XL gene were constructed with firefly and renilla luciferases and transfected into 293T cells. Relative fluorescence intensities of the transfected cells were measured.
: whether the Killer immunoglobulin-like receptor () genotypes and haplotypes are associated with the improvement in dry eye disease (DED) patients treated with Restasis and Systane (RS) remain unclear.: Polymerase chain reaction with sequence-specific primers (PCR-SSP) was used to analyze genes in a Chinese Han population of 198 severe DED patients treated with RS.: The higher frequencies of genotype M, AF, AJ and haplotype 2 and 8 ( = .
View Article and Find Full Text PDFA*31:74: one nucleotide change resulting in a new motif ACG at codon 29 in HLA-A.
View Article and Find Full Text PDFZhonghua Yi Xue Yi Chuan Xue Za Zhi
February 2019
Objective: To analyze the blood type of a family with B(A) blood type.
Methods: The serological blood type of the family was determined by routine tube method. Exons 6 and 7 of the ABO gene were amplified by PCR and subjected to Sanger sequencing.
Background: A large proportion of patients with chronic hepatitis B (CHB) in China do not respond to entecavir (ETV) treatment. It remains unclear whether the Killer immunoglobulin-like receptor (KIR) genotypes and haplotypes were associated with the advantage of seroconversion in phepatitis B e-Antigen (HBeAg) positive CHB patients treated with ETV.
Methods: Polymerase chain reaction with sequence-specific primers (PCR-SSP) was used to analyze KIR genes in a Chinese Han population of 198 ETV-treated HBeAg-positive CHB patients and 200 healthy controls.
Unlabelled: Entecavir (ETV) is commonly used to treat chronic hepatitis B (CHB) in China. However, certain percentages of e-Antigen (HBeAg) positive CHB patients do not respond to ETV therapy.
Objective: To investigate whether the killer immunoglobulin-like receptor (KIR) genes were associated with seroconversion in HBeAg positive CHB responder patients treated with ETV.
Zhonghua Yi Xue Yi Chuan Xue Za Zhi
October 2017
Objective: To identify a rare subtype of the ABO blood group system and explore its molecular basis.
Methods: Based on a standard serological assay, ABO subtype and haplotype were analyzed through PCR amplification of the 7 exons and adjacent introns of the ABO gene and TA clone sequencing.
Results: Forward typing showed a B type, while reverse typing demonstrated an extremely weak anti-B on routine gel analysis, which indicated a forward and reverse typing discrepancy.
Patients with AML may show ABO blood typing discrepancy, and the expression levels of the ABO antigens may show some alterations with the disease progression. To better understand this phenomenon, the blood samples of 25 AML patients and 25 healthy blood donors were examined. The serological ABO blood types of the patients were determined in different AML stages, and gene sequencing was performed to identify the precise ABO genotypes.
View Article and Find Full Text PDFObjective: To investigate whether vitamin B photochemical pathogen reduction technology(PRT) treatment may lead to increase white cell- and platelet- derived cytokines release from platelets during storage.
Methods: Sixty milliliters of leukodepleted apheresis platelets were collected from 20 healthy donors, then were divided into 2 parts: one part (30 ml) remained untreated to serve as control, while the other part was treated with vitamin B-UVB photo-chemical technology as experimental group. During 7 d of storage under standard blood bank conditions, platelet coun-ting (PC), platelet distribution width (PDW), mean platelet volume (MPV), white cell-derived cytokines (IL-1β, IL-2, IL-6, IL-8, TNF-α and IFN-γ) and platelet-derived cytokines (CCL3, CCL5, TGF-β-1 and PF4), P-selectin and phosphatidyl serine (PS) were analyzed on day 1, 3, 5 and 7 of storage, respectively.
Recent studies have reported that the gene can affect circulating expression levels of soluble intercellular adhesion molecule 1 (sICAM-1) and soluble P-selectin (sP-selectin) in Caucasians. However, several factors may affect the association, including the distribution and variations of the gene, ethnic diversity and the inflammatory response status. The aim of the present study was to investigate this issue in Asian subjects of various blood groups.
View Article and Find Full Text PDFPurpose: The objective of this study was to explore whether killer immunoglobulin-like receptor (KIR) genotypes and haplotypes are associated with dry eye disease (DED) in a Han Chinese population.
Methods: Polymerase chain reaction with sequence-specific primers (PCR-SSP) method was used to genotype KIR genes in 106 patients with DED and 220 healthy controls.
Results: Twenty-three KIR genotypes were observed in the DED patient and healthy control groups, ten of which had not been described previously.
Background: In China apheresis platelets (PLTs) are stored in plasma for only 5 days, resulting in PLT inventory pressures. Anandamide (ANA) was reported to be a potential agent to inhibit PLT apoptosis. The aim of this study was to evaluate the characteristics of extended storage PLTs in plasma treated with ANA in vitro.
View Article and Find Full Text PDFZhonghua Yi Xue Yi Chuan Xue Za Zhi
August 2014
Objective: To confirm 17 rare HLA alleles detected during routine HLA typing and deduce their haplotypes.
Methods: Bi-allelic sequence-based typing and Luminex DNA PCR-SSOP assay were applied for the initial or repeat HLA typing, respectively. The rare HLA alleles were confirmed with mono-allelic sequence-based typing.
Zhonghua Xue Ye Xue Za Zhi
May 2014
Objective: To investigate the mechanism of N- Arachidonoylethanolamine (ANA) on inhibiting platelets (PLT) apoptosis under standard blood bank storage conditions.
Methods: Samples taken from collected apheresis PLT by the Amicus instrument were split into three parts. An aliquot of 0.
Zhongguo Shi Yan Xue Ye Xue Za Zhi
April 2014
This study was aimed to identify a novel HLA-DRB1 allele from a Chinese potential hemopoietic stem cell donor of Northeast China. A rare HLA-DRB1 allele was initially detected by Luminex PCR-SSO typing, then the sample was sequenced by sequence-based typing (SBT) and the alignments of sample's alleles was identified by single allele-specific sequencing strategy. The results revealed the existence of a new allele which differs from the closest matching allele DRB1*03:06 by a single nucleotide substitution at position 239, where C→G in exon 2, resulting in an amino acid exchange from Thr to Arg at codon 51.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
October 2013
This study was purposed to investigate the effects of N-Arachidonoylethanolamine (ANA) on the quality of platelets (Plt) stored in Plt M-sol preservative solution at 22 ± 2°C. Samples taken from collecting apheresis Plt by the Amicus instrument and splited into two equal parts were stored in Plt M-sol preservative solution on a shaker at 22 ± 2°C. Different working concentrations of ANA (from 0.
View Article and Find Full Text PDFTo explore the effects of amino acids Gln and Asn within the specific fusion domain of fusion (F) protein on the specific membrane fusion in Newcastle disease virus (NDV), the mutants Q204E-Q205E and N245D were constructed in the specific fusion domain of F protein. The mutant genes were co-expressed with homologous or heterologous hemagglutinin-neuraminidase (HN) in BHK21 cells. Cell fusion functions of mutants were analyzed with Giemsa staining and reporter gene methods.
View Article and Find Full Text PDFSyphilis is a sexually transmitted infection caused by the Treponema pallidum subspecies pallidum spirochete bacterium. The killer cell immunoglobulin-like receptors (KIR), interacting with human leukocyte antigens (HLA), regulate the activations of natural killer (NK) cells and certain T-cell subsets in response to microbe infection. The objective of this study was to explore whether KIR and HLA-C gene polymorphisms were associated with syphilis in a Chinese Han population.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
August 2012
This study was purposed to analyze and identify a novel HLA allele in Chinese population. A new HLA-B allele which is closely related to HLA-B*35:03:01 was initially detected by PCR-SSOP, then DNA sequencing was performed to identify the difference between the novel allele and HLA-B*35:03:01 allele. The result showed that the sequence of the new allele was different from all other known sequence.
View Article and Find Full Text PDFDry eye is one of the most prevalent eye diseases and dry eye disease (DED) is associated with ocular surface inflammation. The interaction between killer cell immunoglobulin-like receptors (KIRs) and human leukocyte antigens (HLAs) regulates the activation of natural killer (NK) cells and certain T cell subsets in response to inflammation. The objective of this study was to explore whether KIR gene and HLA-C allele polymorphisms were associated with DED in a Chinese Han population.
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