1.Analysis of serum chemokines in patients with gastric cancer by cytometric bead array and its clinical significance
Meixing LI ; Xiangliang YUAN ; Jian WANG ; Jian XUE ; Lisong SHEN
Chinese Journal of Laboratory Medicine 2009;32(4):417-421
Objective To explore the levels of serum chemokine in the patients with gastric cancer using cytometric beads array (CBA) and to find out the laboratory evidence for gastric cancer immunotberapy.Methods Forty-five patients with gastric cancer,thirty patients with benign gastric diseases and forty healthy controls were included.The chemokine levels of interleukin-8 (IL-8),regulated upon activation normal T-cell expressed and secreted (RANTES),monokine induced by IFN-γ (MIG),monocyte ehemoattractant protein-1(MCP-1) and interferon-γ induced protein-10 (IP-10) in serum of these three groups were measured using CBA ,then these data were analyzed using BD CBA analysis software.Results The levels of serum chemokines in healthy controls were (176.4±20.7) μg/L for IP-10,(111.3±17.2) μg/L for MCP-1,(503.9±47.2) μg/L for MIG,(472.4±116.7) μg/L for IL-8,respectively.In gastric cancer patients,the levels were (266.6±24.7) μg/L for IP-10,(100.4,70.8-193.5) μg/L for MCP-1,(1614±275.4) μg/L for MIG,(500.0±164.8) μg/L for IL-8.The levels of serum chemokines in patients with benign gastric disease were (207.9±31.7) μg/L for IP-10,(121.2±23.6) μg/L for MCP-1,(514.5±63.0) μg/L for MIG,(480.2±134.8) μg/L for IL-8,respectively.The levels of IP-10 and MIG among these three groups were significantly different (IP-10:F = 3.52,P < 0.05,MIG:F = 9.27,P < 0.01).The levels of IP-10 were elevated in the cancer patients compared with healthy controls (P < 0.05),while the levels of MIG were elevated significantly in the cancer patients compared with healthy controls and benign disease controls(t=3.29,P < 0.01,t=2.84,P<0.01).Conclusions CBA is a novel method with convenience,sensitivity and accuracy for the detection of serum ehemokines.The concentration of IP-10 and MIG in gastric cancer patients are elevated,indicating its implication in cancer pathogenesis and metastasis.Measurement of serum chemokines will lay the groundwork for therapeutic strategy in gastric cancer by inhibiting and anti-chemokine.
2.Analysis of the Effects of Clinical Pharmacists Intervening in Rational Use of TCM Injection in A Hospital
Xu YANG ; Zhenxue TIAN ; Li GAO ; Meixing YAN
China Pharmacy 2016;27(17):2425-2427,2428
OBJECTIVE:To provide reference for the rational drug use of traditional TCM injection. METHODS:Medical re-cords of 792 patients receiving TCM injection were collected from Qingdao Municipal Hospital in the first quarter of 2014(before intervention)and 836 patients collected from the first quarter of 2015(after intervention),and then analyzed comparatively in re-spects of patient’s gender information,rationality of TCM injection,irrational drug use,ADR. RESULTS:After intervention,the use of TCM injection in the hospital became standard gradually,and rational rate increased from 42.42% to 69.98%. Irrational drug use as super-indication medication,overdose,inadequate solvent amount decreased;the ratio of TCM injection prescription cost per capita decreased from 16.64% to 12.59%;the incidence of ADR decreased from 6.94% to 2.51%,with statistical signifi-cance(P<0.05). Except that the amount of Andrographolide for injection,Xuesaitong for injection,Zhengqing fengtongning injec-tion,Reduning injection increased,those of other TCM injection decreased. CONCLUSIONS:Pharmaceutical intervention mea-sures of clinical pharmacists are effective and feasible,and promote rational and standard use of TCM injection.
3.Cost-Effectiveness Analysis of Two Therapeutic Schemes for Chronic Abacterial Prostatitis
Hangshan LI ; Meixing HUANG ; Xiao YANG ; Siying XIANG
China Pharmacy 1991;0(05):-
0.05).CONCLUSION:Scheme B has better compliance and is more economical as compared with scheme A.
4.The study of human melanoma-specific antigen peptides by HLA-A2 restricted tumor-infiltrating lymphocytes
Hailiang GE ; Meixing LI ; Shu JIN ; Ying CHEN ; Yong ZHANG
Chinese Journal of Immunology 1999;0(12):-
Objective:To explore the characteristics of human melanoma-specific antigen peptides by HLA-A2 restricted tumor-infiltrating lymphocytes.Methods:The HLA-A2 protein and polypeptides molecules were purified from the three tumor cell lines(624-Mel, Chap-Mel and JY) by immunoaffinity chromatography, after the peptides bound to HLA-A2 protein solution were acidified with acetic acid and boiled by high temperature, and centrifuged through an Ultra-CL filter, then the peptides extracts were fractionated by revered phase high pressure liquid chromatography(RP-HPLC). Individual fractions were assessed for their ability to reconstitute melanoma-specific epitopes by adding to the HLA-A2 Ag-procceing mutant cell, T2. The biological feature of one of three active peptides from RT-HPLC samples was performed by mass spectrometric analysis. The synthetic peptides identical to active peptide sequences were determined in the reconstitute test.Results:Three prominent peaks(P19, P25 and P31) of the fraction from 624-Mel were observed in the reconstitute test, TIL killing rate was 67% for (P31) peptide fraction. The mass spectrometric analysis of one of active peptides (P31) showed that at mass-to-charge ratio(m/z) 948 has been usually nine residues. The sequence is H+ Ala Lue Trp Lue Phe Phe Gly Val Lue OH-. The peptide synthesized comprising epitopes were verified.Conclusion:These results showed the peptides derived from active fractions were related to human melanoma-specific tumor antigen peptides recognized by HLA-A2-restriced TIL. These peptides could develop novel peptide-based an anti-tumor vaccine for immunotherapy of CTL.
5.Expression of galectin-10 in CD4~+ CD25~+ CD127~(low/-) regulatory T cells
Jian WANG ; Xiangliang YUAN ; Jian XUE ; Meixing LI ; Lisong SHEN
Chinese Journal of Clinical Laboratory Science 2006;0(05):-
Objective To investigate the expression of galectin-10 in CD4+CD25+CD127low/-regulatory T cells(Treg) and the correlation between expressions of galectin-10 and Foxp3.Methods CD4+CD25+CD127low/-Treg cells and CD4+CD25-CD127+ T cells were isolated from PBMC of healthy volunteers and lymph nodes of gastric cancer patients by flow cytometry.Following RNA micro-extraction RT-PCR analysis was used to detect mRNA expression of galectin-10 and Foxp3.Results The mRNA expression of galectin-10 and Foxp3 were dominant in Treg cells,whereas nearly no expression in CD4+CD25-CD127+ T cells.The results from PBMC of healthy volunteers and lymph nodes of gastric cancer patients were consistent between.Conclusion The expression of galectin-10 was obviously high in Treg cells,so it may become a novel marker for phenotypic characterization of Treg cells.
6.Novel 5-color flow cytometric immunophenotyping protocol for leukemia/lymphoma and its clinical application
Xiangliang YUAN ; Jian WANG ; Meixing LI ; Tongtong ZHANG ; Jian XUE ; Lisong SHEN
Chinese Journal of Laboratory Medicine 2008;31(11):1215-1220
Objective To establish a five-color flow cytometric immunophenotyping protocol and valuate its clinical application in leukemia and lymphoma. Methods Samples from 73 cases of acute leukemia and 30 cases of lymphoma were analyzed using a comprehensive antibody panel with five-color combination. The antibody combination CD7/CD33/CD19/CD13/CD45 and MPO/cCD79a/cCD3/CD117/CD45,composed of different lineage distinctive and lineage sensitive markers of B, T and myeloid cells, were applied to determine the lineage originality of leukemia and lymphoma celia. The markers used in the second step analysis were based on the findings of the first step. Results Five-color compensation can be performed automatically and easily with the advanced digital compensation program. The results showed that the expression ratio of CD19 in B-ALL was 100% (27/27), cCD79, pesitivity was 92.6% (25/27) and CD7,cCD3 was expressed in all T-ALL cases (8/8). The B-ALL could be staged depending on the expression level of CD34 ,CD10 ,cμ,sIgM and the T-ALL could be dearly staged dependent on the expression level of CD2,CD1a,,CD4,CD4,CD8. The expression ratio of cMPO, CD117 was 89. 5% (34/38) and 81.6% (31/38) in AML respectively, however CD7 was also expressed in 26.3% (10/38) of AML cases. Combined with morphology, immanophenotypes could be used for diagnosing AML with subtyping. The CD19/SSC gating can be used for immunophenotyping of B cell lymphoma with differential diagnosis. The number of robes required was significantly reduced with our panel from 12 tubes of 3-color to 6 tubes of 5-color. Implementation of the five-color protocol had resulted in 20% reduction in reagent costs. Conclusions The application of fivecolor staining protocol significantly improve the sensitivity and accuracy of measurement of immunophenotypes of acute leukemia and lymphoma. It reduces the cost and can be widely applied in the clinical laboratory diagnosis.
7.CD127,a new biomarker of regulatory T cells:the method and the clinical application
Xiangliang YUAN ; Dingfeng SHEN ; Jian LU ; Ping DONG ; Jian WANG ; Meixing LI ; Lisong SHEN
Chinese Journal of Laboratory Medicine 2008;31(5):499-503
Objective The aim of the study WSfl to establish the method using CDl27 as the new biomarker to identify regulatory T cells(Treg cells)and apply the CD 127 to detect the Treg cells in patients with gastric cancer.Methods The phenotypes of Treg cells were analyzed using five-color flow cytometry method Foxp3.FITC/CD127-PE/CD4-PerCP/CD25-APC/CD3-PC7.The mRNA and protein expression of Foxp3 in isolated CD+4 CD25high CD127-/low Treg cells were detected.The relationships between Foxp3 and CD127 protein expression in CD4+ T cells from aduh human peripheral blood were investigated.PBMCs,Ascltes,turnor-infihration lymphocyte and tumor-draining lymph nodes in 35 patients with gastric cancer and PBMCs in 20 normal healthy donors were evaluated for the proportion of Treg ceils,as well as the percentage ot the total CD +4 cells.Results CD4+ CD25 high CD-127 low ceils expressed the high Foxp3 in protein level(87.1%)and mRNA level.Within the CD4+CD+25 population,there was a significant correlation between Foxp3 and the CD127low phenotype(r=0.985,P<0.01).Compared with healthy olunteers,patients with gastric malignancies had a higher proportion of CD4+4 Cdhigh 25 CD-low127 cells in peripheral blood(t=2.542,P<0.05).The Dereentages of Treg cells were more abundant in ascites(t=2.357,P<0.05),TIL(t=6.174,P<0.01) and tumor-draining lymph nodes(t=5.481,P<0.01)of individuals with gastric cancer than that in their blood.There were significant differences in the prevalence of Treg ceils between the early and advanced disease stages in gastric cancer[(6.04±2.31)%in stageⅠ+Ⅱ VB(10.16±2.29)% Ⅲ+Ⅳ,t=2.473,P<0.05].Conclusions The CD127 biomarker can be used to selectively enrich human Treg cells for in vitro functional studies.The populations of CD4+ CD high25 CD127-/low Treg cells increased ith tumor stage in individuals with gastric cancer.
8.The populations, distribution of regulatory T cells, Foxp3 mRNA expression gastric cancer patients and the association with malignant stage
Xiangliang YUAN ; Dingfeng SHEN ; Jian LU ; Ping DONG ; Jian WANG ; Meixing LI ; Lisong SHEN
Chinese Journal of Laboratory Medicine 2008;31(4):378-383
Objective To investigate the populations of CD+4CD25high Foxp3+ regulatory T cells(Treg cells)and mRNA expression of Foxp3 in peripheral and the marginal region of tumor from patients with gastric cancer,and to evaluate the prevalence of Treg cells from patients with gastric cancer in relation to the TNM stages.Methods PBMC,Ascites,tumor-infiltration lymphocyte and tumor-draining lymph nodes in 47 patients with gastric cancer(TNM I11,Ⅱ18,Ⅲ10,Ⅳ8)and PBMC in 20 normal healthy donors were evaluated for the proportion of Treg cells,as a percentage of the total CD4+ cells,by flow cytometric analysis.Levels of mRNA for Foxp3 were measured witll a real-time quantitative PCR Results The percentage of CD4+CD25high Foxp3+ Treg cells in PBMC for cases of gastric cancer were significantly higher than those for healthv donors(P<0.05).The percentage of Treg cells were more abundant in ascites(P< O.05),1rIL(P<0.01)and tumor-draining lymph nodes(P<0.01)of individuals with gastric cancer than in their blood.And the Foxp3 mean fluorescent intensity (MFI) of Treg cells in TIL and tumor draining lymph nodes with gastric caners were significantly higher than PBMC and ascites(P<0.05).The proportion 0f Treg cell in patients of gastric cancers with stage I,II,Ⅲ,Ⅳ were(5.72±1.95)%,(6.45± 2.23)%,(9.58±3.13)%,(11.70±2.30)%,respectively.There were significant correlation between Drevalenee of Treg cells and disease stages in gastric cancer(r=0.784,P<0.01).Foxp3 mRNA levels were higher in PBMC from the group with gastric cancers than in the group with healthy donors.Foxp3 mRNA levels were correlated with TNM stages(r=0.623,P<0.05).Conclusions Our results suggest that the populations of CD4+CDhigh25 Foxp3+Treg cells and Foxp3 mRNA levels in patients with gastric cancer are signifieantlv higher in comparison to those in control donors.In addition,the expression of Fox:p3 mRNA increased with tumor stage.The increased prevalence of Treg cells may be one of the explanations for impaired cell-mediated immunity in cancer bearing hosts.
9.Ankylosing spondylitis coexistent with systemic lupus erythematosus: 8 cases reports and review of the literature
Qihong GUO ; Xiaojuan ZHANG ; Ting LI ; Meixing YE ; Jia ZENG ; Baolin ZHENG
Chinese Journal of Rheumatology 2020;24(4):264-267
Objective:To summary the clinical features of 8 cases with ankylosing spondylitis (AS) complicated with systemic lupus erythematosus (SLE).Methods:This study was conducted retrospectively from January 2007 to November 2018. Eight patients with AS complicated with SLE who were admitted to Foshan Hospital of TCM were analyzed. Bath ankylosing spondylitis disease activity index (BASDAI) was compared using t-test. Results:Four patients were female. The mean age was (31±14) years, ranged from 16 to 59 years. The average disease duration of AS was (27±30) months(ranging from 4 to 144 months). The average disease of duration SLE was (69±51) months (ranging from 1 to 80 months). All patients was human lymphocyte antigen (HLA)-B27 positive. SLE-related organ involvement included kidney in 5 cases, leukocytopenia in 8 cases, arthralgia in 6 cases, nervous system in 1 case and skin rash in 3 cases. Renal biopsy were performed in 3 patients. And 2 cases were class Ⅲ+Ⅴ lupus nephritis, another one was class Ⅳ+Ⅴ lupus nephritis.Conclusion:AS may complicated with SLE. Some drugs may be able to active the potential SLE, which should be differentiated from drug-related lupus.
10.Analysis of ADR reports caused by cefotaxime sodium in Shandong province and effects of skin test on serious ADR
Meijuan REN ; Hongmei ZHANG ; Chang LIU ; Rui LI ; Meixing YAN
China Pharmacy 2023;34(10):1233-1236
OBJECTIVE To analyze the clinical manifestations and characteristics of adverse drug reactions (ADR) caused by cefotaxime sodium in Shandong province, and to explore the effects of skin test before medication of cefotaxime sodium on serious ADR, so as to provide reference for safe drug use in clinic. METHODS The relevant data of cefotaxime sodium-induced ADR reported by Shandong Province ADR Monitoring Center during December 2019 to December 2021 were collected from National ADR Monitoring System. The ADR classification, age, gender, ADR occurrence time, route of administration, history of allergy, primary diseases, ADR systems/organs involved, clinical manifestations, outcome, skin test or not before medication were statistically analyzed. RESULTS A total of 1 057 ADR reports caused by cefotaxime sodium were included. Among them, there were 867 patients (82.02%) with general ADR and 190 patients (17.98%) with serious ADR. The majority were <11 years old (40.30%). The main route of administration was intravenous drip (96.69%). A total of 1 033 patients (97.73%) developed ADR 30 min to 24 h after medication. A total of 814 patients (77.01%) had no history of allergy. The primary diseases were respiratory system infection (56.58%). Main systems/organs involved in ADR were skin and its appendants, digestive system and respiratory system, and its clinical manifestations were rash, pruritus, nausea, vomiting, chest tightness, etc. After withdrawal or symptomatic treatment, 1 050 patients (99.34%) were cured or improved. Before the use of cefotaxime sodium, 850 patients underwent skin test (151 patients occurred serious ADR); there was no statistical significance in the incidence of serious renzhen202102@163.com ADR, compared with the incidence of serious ADR in 207 patients without skin test (39 patients occurred serious ADR)(P=0.718). CONCLUSIONS ADR caused by cefotaxime sodium is mainly seen in patients <11 years old, mostly occurring 30 min to 24 h after intravenous drip; skin test before medication of cefotaxime sodium cannot reduce the risk of serious ADR. Before using cefotaxime sodium in clinical practice, patients should be asked about their allergy and medication history in detail. During use, it is important to focus on the patient’s condition within 24 h after medication to prevent serious ADR and ensure the safety of clinical medication.