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1.
J Biomed Nanotechnol ; 18(4): 1009-1018, 2022 Apr 01.
Article in English | MEDLINE | ID: mdl-35854442

ABSTRACT

To conduct an anti-tumor research by using targeted drug-loaded cell-derived microparticles to target the tumor microenvironment and enhance NK cell killing function. In this experiment, we obtained HepG2 tumor cell-derived microparticles by physical extrusion, high speed centrifugation and filtration, modified the hepatocellular carcinoma targeting peptide SP94 on the surface of microparticles and encapsulated the TGF-ß inhibitor SB505124. Finally we validated and analyzed whether the new drug delivery system can target to tumor site and enhance the anti-tumor function of NK cells. This type of novel targeted cell-derived microparticles drug delivery system will provide a novel idea for tumor immunotherapy.


Subject(s)
Carcinoma, Hepatocellular , Cell-Derived Microparticles , Liver Neoplasms , Carcinoma, Hepatocellular/drug therapy , Cell Line, Tumor , Cell-Derived Microparticles/metabolism , Cell-Derived Microparticles/pathology , Hep G2 Cells , Humans , Liver Neoplasms/drug therapy , Liver Neoplasms/metabolism , Peptides , Pharmaceutical Preparations , Tumor Microenvironment
2.
Acta Pharmaceutica Sinica B ; (6): 3177-3186, 2022.
Article in English | WPRIM (Western Pacific) | ID: wpr-939949

ABSTRACT

Hepatocellular carcinoma (HCC) is a common malignant tumor with poor prognosis and high mortality. In this study, we demonstrated a novel vaccine targeting HCC and tumor neovascular endothelial cells by fusing recombinant MHCC97H cells expressing porcine α-1,3-galactose epitopes (αGal) and endorphin extracellular domains (END) with dendritic cells (DCs) from healthy volunteers. END+/Gal+-MHCC97H/DC fusion cells induced cytotoxic T lymphocytes (CTLs) and secretion of interferon-gamma (IFN-γ). CTLs targeted cells expressing αGal and END and tumor angiogenesis. The fused cell vaccine can effectively inhibit tumor growth and prolong the survival time of human hepatoma mice, indicating the high clinical potential of this new cell based vaccine.

4.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-603122

ABSTRACT

Objective To study the clinical effect of complex treatment combined with external application of Rhubarb and Mirabilite on abdomen of patients with abdominal distension after abdominal surgery .Methods 90 patients with abdominal distension after gynecological abdominal surgery from June 2014 to September 2015 were randomly divided into conventional group(45 patients) and comprehensive group(45 patients).Patients in the conventional group were given routine gynecological postoperative care, and patients in the comprehensive group were given complex treatment combined with external application of Rhubarb and Mirabilite on abdomen.The abdominal distension duration, anal exhaust time, time of resuming peristaltic sound, first defecation time, treatment effect, depression and anxiety emotions, changes of life quality of the two groups before and after intervention were compared.Results The comprehensive group had higher treatment effect than the comprehensive group ( P<0.05 ) .The abdominal distension duration, anal exhaust time, time of resuming peristaltic sound, first defecation time of the comprehensive group were shorter than that of the conventional group(P<0.05).The comprehensive group had better depression, anxiety emotions and life quality compared to the conventional group (P<0.05).Conclusion Complex treatment combined with external application of Rhubarb and Mirabilite on abdomen has a very significant clinical effect on patients with abdominal distension after abdominal surgery, it can improve patients’negative emotions and the symptom of abdomen distension, promote life quality.

5.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-423427

ABSTRACT

Objective To investigate the changes of serum levels of high-sensitivity C-reactive protein to distinguish community-acquired pneumonia caused by bacteria or mycoplasma pneumoniae in children.Methods To examine the serum levels of hs-CRP of patients with bacteria ( n =50),mycoplasma pneumoniae ( n =50),Virus ( n =50) by the Immunofluorescence method.and The levels of white blood cell(WBC),count of polymorphonuclear neutrophils(PMN) and neutrophil percentage(N) were analyzed.Results The levels of hs-CRP increased to different degrees in patients with bacterial pneumonia or mycoplasma pneumoniae pneumonia.the level of WBC,PMN and N have significant difference btween two groups also( all P <0.01 ).The area under the ROC curve(AUC) of hs-CRP was bigger than that of WBC,PMN and N(0.935 vs 0.783,0.807,0.747) and it was Significant difference(all P<0.05).Conclusion Serum bs-CRP was a better biomarker in the early diagnosis of bacteria and it could effectively dstinguish community-acquired pneumonia caused by bacteria or mycoplasma pneumoniae in Children.

6.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-973266

ABSTRACT

@#ObjectiveTo observe the effect of VitalStim electrical stimulation on disorder of swallowing function induced by stroke.Methods60 patients with disorder of swallowing function after stroke were randomly divided into the treatment group and control group with 30 cases in each group. The patients in the treatment group were treated by VitalStim electrical stimulation and swallowing exercise and the cases of the control group were treated by swallowing exercise only. All patients were evaluated with the standard of swallowing exercise effect reported by Tengdao-Lang (Japan) before and after treatment.ResultsAfter treatment, the total recovery rate of the treatment group was 93.3%, that of the control group was 66.7%, there was a significant difference between two groups ( P<0.05).ConclusionThe effect of VitalStim electrical stimulation combined with swallowing exercise on disorder of swallowing function induced by stroke is better than swallowing exercise only.

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