Objective:To investigate effects of dendritic cells(DCs) pulsed with autologous hepatoma cell lysates on the immune function of the postoperative patients with hepatocellular carcinoma(HCC).Methods:DCs isolated from peripheral blood mononuclear cell of HCC patients were cultured and proliferated in vitro by using rhGM-CSF and rhIL-4,and then were pulsed with autologous hepatoma cell lysates.30 postoperative patients with HCC were randomly divided into 2 groups.15 cases were treated with dendritic cell vaccine.15 cases received only chemotherapy and were established as control group.Immune function、clinical effects in two groups of patients were compared and observed.Results: The levels of DC3~+、DC4~+/CD8~+ and NK cell in the DC vaccine group significantly increased after vaccination,while those of the control group had no significant changes.The levels of IgG、IgM、IgA in the DC vaccine group increased after vaccination,but didn't reach statistical significance.The concentration of IL-10 in the DC vaccine group significantly decreased after vaccination(P

Interferons(IFNs) are a family of glycoproteins with antiviral, antitumor, and immunomodulatory activities, classi-fied into type Ⅰ, Ⅱ, and Ⅲ based on structural and receptor specificity. Among these, type Ⅲ IFNs(IFNλs), including IFNλ1(IL-29),IFNλ2(IL-28a),andIFNλ3(IL-28b),exhibittissue-specificreceptordistribution,predominantlyexpressedinepithelialcells and select immune cells, thereby demonstrating reduced systemic side effects compared to typeⅠIFNs. Mechanistically,IFNλs exert their antiviral effects through JAK/STAT signaling pathway inducing the expression of interferon-stimulatedgenes(ISGs), and inhibit tumor cell proliferation, promote apoptosis and regulate immune responses. Recent advances inrecombinant IFNλs therapeutic development include polyethylene glycol(PEG) modified IFNλ1, a longacting formulationcurrently in phaseⅢclinical trials for hepatitis C, hepatitis D, and COVID-19. In this paper, the structures and receptors,signaling pathway and regulation, biological functions and research progress of IFNλs are summarized in order to provideinsights for the development of IFNλs related products.
10.13200/j.cnki.cjb.004486

Nrf2/Keap1/ARE is an important signaling pathway in maintaining the balance between peroxide and antioxidants. Once oxidative stress happened, Nrf2/Keap1/ARE would be ac-tivated to regulate the expression of downstream antioxidant pro-teins that could reduce the injury from oxidative stress and the level of oxidative stress. Recent researches show that Nrf2/Keap1/ARE signaling pathway is closely related to refractory re-spiratory diseases such as pulmonary fibrosis (PF), lung canc-er, chronic obstructive pulmonary disease (COPD), suggesting that Nrf2/Keap1/ARE signaling pathway may be a potential ther-apeutic target. This review focuses on the role of Nrf2/Keap1/ARE signaling pathway in refractory respiratory diseases in order to further understand the related mechanism and provide evidence for the diagnosis and treatment of refractory respiratory diseases.

Objective To explore the optimal immunohistochemical (IHC)diagnostic index for supraclavicular lymph node me-tastasis in lung cancer.Methods In the premise of conforming to the evidence-based medicine,the biopsy of lymph node in 135 pa-tients with supraclavicular lymph node metastasis was performed and 7 antibodies were selected to be detected.135 cases were di-vided into two classes:class A (110 cases)and B (25 cases).The class A included 14 cases of primary lesion inside the lung by the histological analysis,43 cases of primary lesion inside the lung by the cytological detection and 53.cases of primary lesion inside the lung by the radiographic analysis.The class B included 25 cases of lesion outside the lung by the histological analysis.The detecting antibodies included CK7,CK20,EMA,CEA,TTF-1,SPB and vimentin.Results The sensitivity and specificity of single antibody for deducing the primary lesion inside the lung were 90.0% and 56.0% for CK7,98.0% and 40.0% for CK20,90.9% and 4.0%for EMA,80.9% and 36.0% for CEA,62.7% and 100.0% for TTF-1,65.6% and 100.0% for SPB,and 60.9% and 60.0% for vimentin.The quadruple antibodies (CK7,CK20,TTF-1 and SPB)showed the highest sensitivity(85.0%)and highest specificity (100.0%),which made the relatively high detection rate (80.0%)of lung cancer in clinic.Conclusion Analyzing and researching the IMC results is of great significance to guide the surgical pathological practice based on the evidence-based medicine.

Objectives: To study the apoptosis induced by homocysteine (Hcy) and the protective effects of folic acid, VE and Se. Methods: Inverted microscopy and MTT test were used to observe the protection of these nutrients on the cytotoxic effect of Hcy. DNA agarose gel electrophoresis and flow cytometry were used to observe the inhibition of these nutrients on the apoptosis induced by Hcy. The level of MDA, the activity of SOD and GSH-Px and the generation of active oxygen in cells were also measured to investigate the mechanism of the protective effects. Results: Significant effects of folic acid, VE and Se on the protection of cell damages and the inhibition of apoptosis induced by Hcy were observed. These protective effects may be the results of decreasing MDA in cells provided by folic acid, VE and Se, increasing the activity of SOD by folic acid, increasing the activity of GSH-Px by folic acid and Se, and decreasing the generation of active oxygen by VE. Conclusions: The protective effects of folic acid, VE and Se on the damage of ECV304 cell from Hcy and the inhibitive effect on apoptosis induced by Hcy might be in different mechanisms.

Purpose:To explore the in vitro effects of apoptosis induction of 2-methoxyestradiol(2ME2),an estrogen derivative on primary myeloma cells and hematopoietic precursors from multiple myeloma patients. Methods:The primary myeloma cells and hematopoietic precursors from 14 multiple myeloma patients were examined determine apoptosis cells in situ by terminal-deoxynucleotidyl transferase mediated dUTP nick end labeling(TUNEL)assay. Results:After co-cultured with different concentrations (1,4,16?mol/L) 2 ME2 for 48h respectively,apoptotic ratios of myeloma cells were 10.5? 1.2%,21.2?2.3%,36.8?3.6% respectively ,which shows a concentration- dependence.In comparision with the control group,the difference is of statistical significance(P0.05). Conclusions:2ME2 could electively induce apoptosis of primary myeloma cells from myeloma patients and has little apoptotic effect on granulocytic,erythrocytic and lymphocytic cells in the bone marrow.

Objective To explore the before taking finasteride on transurethral plasmakinetic resection of prostate(TUPKVP)patients about IPSS,QOL,Qmax,PVR and other indicators.Methods 180 cases with benign prostatic hyperplasia were randomly divided into observation group and control group,90 cases in each group.Observation group and control group were given conventional therapy and the observed patients took 5 mg of finasteride everyday one week before surgery,all patients were followed up for 1 month.The two groups of TUPKVP patients were compared about IPSS,QOL,Qmax and PVR,intraoperative blood loss,operation time,irrigation fluid volume indicators.Results 180 patients were given successfully TUPKVP surgery.IPSS,QOL,Qmax and PVR contrast were significantly improved after treatment(t=5.11,7.01,3.06,6.17,11.82,4.13,4.52,5.17,all P＜0.05).IPSS,Qmax,PVR of the observation group after treatment was significantly better than that of the control group(t=11.35,5.26,3.12,all P＜0.05),the QOL difference between the two groups after treatment was not statistically significant(P＞0.05).The cure rate of the observation group was 87.8％,which was significantly higher than 63.33％ in the control group(x2=14.56,P＜0.05).Intraoperative flushing fluid volume,intraoperative blood loss,duration of surgery in the observation group were significantly different compared with the control group,(t=21.15、43.12,5.33,all P＜0.05).Conclusion The preoperative taking finasteride can reduce TUPKVP blood loss and flushing fluid volume,shorten operation time and effectively improve the security of the operation.

Objective To research the risk of osteopo'rotic vertebral fractures with PKP after the PMMA injected location and dose of occurrence of vertebral refracture.Methods 78 cases of vertebral osteoporotic thoracolumbar vertebral compression fracture patients with PKP treatmentin were selected.According to position of postoperative PMMA in the vertebral body,they were divided into the side of the group of 35 patients and a median group of 43 patients.Compared two groups of patients before and after surgery,VAS,ODI score,the SI and Cobb angle and analyzed the PMMA leakage occur with the relationship of the amount of bone cement injected.Results There were significant differences in visual analogue pain scale(VAS),Oswestry disability index(ODI),sagittal index(SI) and Cobb angle of each group preoperatively versuspostoperatively (all P ＜ 0.05).No statistical difference was noted in the VAS,ODI,SI and Cobb angle between two groups preoperatively versus postoperatively(all P ＞ 0.05).PMMA injection volume between the the leakage group and the non-leakage patients had statistically significant difference (P ＜ 0.05).Conclusion PKP could obtain better clinical therapeutic effect in osteoporotic vertebral fractures treatment.Different PMMA positions had no significant influence on the therapeutic results.PMMA injected dose is a risk factor for bone cement leakage,which will increase the risk of vertebral fractures again.

Objective To study the effect of simvastatin combined with trimetazidine on cardiac function and high-sensitivity C-reactive protein(hs-CRP) in patients with chronic heart failure.Methods 160 patients with chronic heart failure were divided into control group and the observation group according to the random number table.The control group was treated with diuretics,inotropic,vasodilators and other conventional treatment,on the basis of this,the observation group received simvastatin combined with trimetazidine treatment.The cardiac function and hs-CRP of the patients were observed,and the treatment effects were evaluated and analyzed.Results The total effective rate of the observation group was 82.50％,which was significandy higher than 52.50％ of the control group (x2 =16.4103,P ＜ 0.001).Compared with before treatment,IL-6,TNF-alpha and hs-CRP levels of two groups after treatment were significantly decreased (t =12.234,13.342,5.463,8.533,7.896,3.536,all P ＜ 0.05),and those in the observation group were significantly lower than the control group (t =4.653,3.976,3.674,all P ＜ 0.05).Conclusion Simvastatin combined with trimetazidine has good effect on the cardiac function of patients with chronic heart failure,and can effectively reduce the level of hs-CRP,it is worthy of clinical application.

Objective To evaluate the quality of the randomized controlled trials (RCTs) published in two key Chineze journals on clinical nutrition.Methods The articles published in CHINESE JOURNAL OF CLIN-ICAL NUTRlTION and PARENTERAL & ENTERAL NUTRITION from 2000 to 2008 were reviewed and the RCTs were identified according to criteria of the handbook of Cochrane Collaboration.The Jadad scale was used to evalu-ate the quality of these RCTs.Results Totally 238 RCT articles were published in these two journals in this peri-od.The Jadad score of all RCT articles was 1.65±0.82.Twenty-eight articles (11.76%) were of high quality and only 5 articles (2.10%) were identified 5 points.There were some problems in the RCTs design,conduction and analyses included unclear randomization methods,poor comparison,lack of inclusion and exclusion criteria.less blinding employment,unclear withdrawals and dropouts,and improper sample size.Conclusion The design and quality control of Chinese clinical nutrition RCTs still have some problems and require further improvement.